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Home My WebLink About197-188STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG II IT.I 1 I nnio ze��22 W RBDMS� JUN 2 0 1019 6' it G J M I I , , ", 1a. Well Status: Oil ❑ Gas ❑ SPLUG ❑ Other ❑ Abandoned ® Suspended ❑ Well Class: 20AAC 25.105 20AAC 25.110 GINJ 11WINJ ❑ WAG 11WDSPL ❑ No. of Completions: Zero 11b. Development 'PJgl tl ❑ _ _- Service ElStratigrephic Test ❑ 2. Operator Name: 6. Date Comp., Susp. or Abantl.: 14. Permit to Drill Number/Sundry BP Exploration (Alaska), Inc 5/16/2019 • 197-188 • 318-524 3. Address: 7. Date Spudded: 15. API Number: P.O. Box 196612 Anchorage, AK 99519-6612 10/25/1997 50-029.22819-00-00 4a. Location of Well (Governmental Section): 8. Date TO Reached: 16. Well Name and Number: 12/20/1997 PBU E-100 Surface: 5001' FSL, 500 FEL, Sec. 06, T11 N. Ri4E, UM 9 Ref Elevations KB 71.00 17. Field/Pool(s): Top of Productive Interval: 1852' FSL, 1610' FEL, Sec. 30, T1 2N, R14E, UM GL 30.20 BF 31.16 PRUDHOE BAV,SAIll MIDNIGHT SUN OIL 10. Plug Back Depth(MD/TVD): 18. Property Designation: Total Depth: 2793' FSL, 1641' FEL, Sec. 30, T12N, R14E, UM • 12988'/ 9148' ADL 028304 5 028299 41b. 4b. Location of Well (State Base Plane Coordinates, NAD 27): 11, Total Depth (MD/TVD): 19. DNR Approval Number: Surface. x- 664447 y- 5976785 Zone - ASP 4 . 13282'/ 9423' - 89-111 TPI: x- 663150 y- 5984169 Zone - ASP Total Depth: x- 663094 y- 5985109 Zone - ASP 4 12. SSSV Depth(MD/TVD): None 20 Thickness of Permafrost MD/(VD: 1900' (Approx.) 5. Directional or Inclination Survey: Yes ❑ (attached) No 8 13. Water Depth, if Offshore: 21, Re-drill/Lateral Top Window Submit electronic and printed information per 20 AAC 25.050 N/A (It MSL) MDrl N/A 22_ Logs Obtained List all logs run and, pursuant to AS 31 .05.030 and 20 AAC 25.071, submit all electronic data and printed logs within 90 days of completion, suspension, or abandonment, whichever occurs first. Types of logs to be listed include, but are not limited to: mud log, spontaneous potential, gamma my, caliper, resistivity, porosity, magnetic resonance, dipmeter, formation tester, temperature, cement evaluation, casing collar locator, jewelry, and perforation record. Acronyms may be used. Attach a separate page if necessary MWD, DIR, GR, RES, RES / AIT, DT / BHC, CML, LDL, GR, Caliper, SP, MRES, Cl RFT, CHIC Sonic, CBL, USIT 23. CASING, LINER AND CEMENTING RECORD CASING AT. PER FT GRADE SETTING DEPTH MD SETTING DEPTH TVD HOLESIZE CEMENTING RECORD AMOUNT PULLED TOP BOTTOM TOP BOTTOM 20" 91.5# H-40 43' 123' 43' 123' 30" 260 sx Arctic Set(Approx.) 9-5/8" 47# L-80 43' 4441' 43' 3689' 12-1/4" 2189 ax PF •E', 335 sx Cless'G' 296 7" 29# L-80 40' 12906' 40' 9072' 8-1/2" 300 sx Sillicatte 4-1/2" 12.6# Laa 11845' 13227' 8171' 9371' 6" 180 sx Class'G' 24. Open to production or injection? Yes ❑ No El 25. TUBING RECORD If Yes, list each interval open (MD/TVD of Top and Bottom, Perforation Size and Number, Date Perfd): GRADE DEPTH SET (MD) PACKER SET (MDRV 4-1/2" 12.6# L-80 11646' 11620'/ 8015'- A, - /� � A0 0171�4Qfy/1� 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. '0 "�fA ST 1( ?pig Was hydraulic frecluring used during completion? Yes 1-1 No m Per 20 AAC 25.283 (i)(2) attach electronic and printed information VERIFIED DEPTHINTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 11665'- 11795' Squeeze Paris w/ 200 Bbls Class'G' _ of 12988' Set Whipstock 12993' Set CIBP 27, PRODUCTION TEST Dale First Production. Not on Production Method of Opersuon (Flowing, gas Iia, e1c.): N/A Date of Test: Hours Tested: Production for Test Period -► Oil -Bbl: Gas -MCF: Water -Bbl: Choke Sire. Gas -Oil Ratio: Flaw Tubing Casing Press: Calculated Oil -Bbl: Gas -MCF: Water -Bbl: Oil Gravity- API(com: Press 24 Hour Rale .. Ill Form 10-407 Revised 5/2017 CONTINUED ON PAGE 2 i Su bmt ORIGINAL only ze��22 W RBDMS� JUN 2 0 1019 6' it G 28. CORE DATA Conventional Com(s) Yes ❑ No 0 Sidewail Cores Yes ❑ No 0 If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 25.071_ 29. GEOLOGIC MARKERS (List all formations and markers encountered): 30. FORMATION TESTS NAME MD TVD Permafrost - Top Well Tested? Yes ❑ No 0 Permafrost - Base If yes, list intervals and formations tested, briefly summarizing test results. Attach Top of Productive Interval 11494' 7933• separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Top of Kuparuk 11494' 7933' Base of Kuparuk 11658' 8040' Sag River 12957' 9119' Shublik 13011' 9169' Sadlerochit 13069' 9223' Formation at total depth: Sadlerochit 13069' 9223' 31. List of Attachments: Summary of Pre -Rig Work, Summary of Daily Drilling Reports, Wellbore Schematic Diagram Information to be attached includes, but is not limited to: summary of daily operations, wellbore schematic, directional or inclination survey, core analysis, Paleontological report, production or well test results, per 20 AAC 25.070. 32. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Authorized Name: Lastufka, Joseph N Contact Name: Hyatt, Trevor Authorized Title: SIM S ei 'st Contact Email: Trevor Hyatt@bp.com Authorized Signature: Date: (0h 4j Ji1 Contact Phone: +1 907 564 4627 INSTRUCTIONS General: This Form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a wail schematic diagram with each 10-407 well completion report and 10-404 welt sundry report when the downhole well design is changed. All laboratory analytical reports regarding samples or tests from a well must be submitted to the AOGCC, no matter when the analyses are conducted. Item 1a. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item ib. Well Class Service wells: Gas Injection, Water Injection, Water -Alternating -Gas Injection, Salt Water Disp, Water Supply for Injection, Observation or Other. Item 4b. TPI (Top of Producing Interval). Item 9. The Kelly Bushing and Ground Level elevations in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 15. The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Item 20. Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 29. Item 22. Review the reporting requirements of 20 AAC 25.071 and, pursuant to AS 31.05.030, submit all electronic data and printed logs within 90 days of completion, suspension, or abandonment, whichever occurs fret. Item 23. Attached supplemental records should show the details of any multiple stage cementing and the location of the cementing tool. Item 24. If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27. Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-in, or Other ( explain). Item 28. Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30. Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071, Item 31. Pursuant to 20 AAC 25.070, attach to this form: well schematic diagram, summary of daily well operations, directional or inclination survey, and other tests as required including, but not limited to: core analysis, paleontological report, production or well test results. Form 10-407 Revised 512017 Submit ORIGINAL Only -------- - -- ***WELL FOUND S/I ON ARRIVAL***(CTD) DRIFT W/ 20'X 3.70" DUMMY WHIPSTOCK, 3.25" LIB TO FISH @ 12,994' MD **IMPRESSION OF FISH** SET WFD 4.5" CIBP @ 12,993' MD CURRENTLY RUNNING SBHPS AS PER PROGRAM 2/23/2019 ****CONT WSR ON 2-24-19**** ****CONT WSR FROM 2-23-19****(CTD) RUN HES SBHPS AS PER PROGRAM AND UP PASS FROM 12,800' SLM TO 12,784' SLM (GOOD DATA) 2/24/2019 '"**WELL LEFT S/I ON DEPARTURE, DSO NOTIFIED**** T/1/0=270/164/33 Temp=Sl (LRS Unit 70 - Assist E -line: Toolstring Stuck in Hole). Rig Up. E -line unit timed out. Rigged down to do freeze protects. Resume in the morning. RDMO. 2/28/2019 IA/OA=OTG. E -line in control of well upon LRS departure. FWHP's=270/160/35 ***WELL SHUT-IN ON ARRIVAL"* (SLB E -LINE WHIPSTOCK SETTING) INITIAL T/I/O = 300/150/0 PSI RIG UP E -LINE, PT LUBRICATOR TO 3200 PSI RIH W/ BAKER 4-1/2" MONOBORE WHIPSTOCK. TIE INTO SCHLUMBERGER PERFORATING RECORD DATED 12 -AUG -2000. WHIPSTOCK ORIENTED TO 3 DEG ROHS. TOP OF WHIPSTOCK SETTING DEPTH = 12988'. WHIPSTOCK APPEARS TO HAVE ONLY PARTIALLY SET ATTEMPTS TO RELEASE ERS AND PULL FREE HAVE FAILED, LRS ARRIVE TO PUMP SAFE LUBE TO DECREASE FRICTION IN WELLBORE. CREW HOUR OUT, STAND BY UNTIL THE MORNING. 2/28/2019 ***JOB CONTINUED ON 01 -MAR -2019*** ***JOB CONTINUED FROM 28 -FEB -2019*** LRS PUMP DOWN TUBING W/ 30 BBL METH FOLLOWED BY 205 BBL OF 1 % KCL W/ SAFE LUBE AT MAX RATE. AFTER MULTIPLE ATTEMPTS, SUCESSFULLY RELEASED AT ERS. LRS PUMP 38 BBL FREEZE PROTECT WITH 60/40 METH. RDMO. WELL LEFT S/I ON DEPARTURE. FINAL T/I/O = 300/150/0. ***JOB COMPLETE ON 01 -MAR -2019*** ***LIH - MH-22/ERS-E/SAH-G/CENT(x2)/WPMOT/VVPTET/WPGRT/WPST/BKR-10/4-1/2" BAKER MONOBORE WHIPSTOCK. OAL - 44.9', MAX O.D. = 3.63", CAW = 650#. FN = 3/1/2019 1.375". TOP OF TS - 12957'*** T/1/0=270/165/35 Temp=S/I (LRS Unit 70 -Assist E -line: Toolstring Stuck in Hole) Confirm Injectivity down Tubing w/ 30 bbls of 30* 60/40 followed by Load & Kill well w/ 205 bbls of 110* 1% KCL w/ Safe Lube, 10 bbls of 60/40 to FP surface lines. Eline works wire Freeze Protect Tubing w/ 38 bbls of 60/40 w/ Safe Lube E -line on well on dep. Wing shut swab shut ssv shut master open casing valves open to gauges 3/1/2019 Final Whp's=490/122/124 ***WELL S/I ON ARRIVAL***(ctd) FISHED ELINE TS & BAKER EQ FROM 12,933' SLM. RAN 3.48" CENT, TEL, 3.60" CENT, 3" LIB, LOC TTL @ 11,626' SLM + 22' = 11,648' ELMD. SD @ 12,969' SLM (12,991' ELMD) 3/14/2019 ***CONT ON 3-15-19 WSR*** Daily Report of Well Operations E-100 ***CONT FROM 3-14-19 WSR***(CTD) RIG DOWN SWCP 4522 3/15/2019 **"WELL LEFT S/I ON DEPARTURE, PAD -OP NOTIFIED OF STATUS*** CTU #9 2" 0.156WT HS -90 Objective: Cement sqz below whipstock MIRU. Flush coil with 60/40 to mitigate any residual rust/debris from older tail section that was just but welded on. There was definitely some junk in there (clogged the choke briefly). Pump 1.375" drift ball no issues. Perform partial bop test. MU 2.5" BDN. RIH. Load well with non slick KCI and then 75bbl of diesel. Establish static baseline pressure at 933psi and baseline injection pressure @ 1 bpm = 1200psi. 3/27/2019 ***Continued on 3/28/19*** CTU #9 2" 0.156WT HS -90 Objective: Cement sqz above whipstock Begin pumping 200bbl of 15.8ppg class G cement, laid in 25bbl from whipstock to 11600. Close choke and down squeeze. Squeezed 150bbl behind pipe before laying the last 30bbl left in coil. Perform hesitation squeeze. Unable to perform minimum required squeeze pressure as per SOR. Displace cement to within /bbl of top pert. Swap to gel, drop 3/4" ball. Had to crack choke holding well static briefly/ take returns to lower WHP to be able to rih. Difficulty rih with 2" coil at 1700psi whp. Continue jetting/cleanout/bullheading all gel/KCL back down to flag/whipstock. Jet GLMs while pooh. Park at 5862' to get a static whp= 1400psi. Resume pumping pipe dispacement/freeze protecting the coil. Coil FP, well FP w/38bb160/40. 1 bpm injectivityat surface=1399psi. Jet bops. RDMO 3/28/2019 *"Complete*** T/I/O = TWC/200/0. Pre CDR2 Tree work. Remove 4" CIW uper tree with companion valve. Install CDR Tree #8. Install Kill Line #4. Torque to API specs. Install CDR work platform. PT against MV to 350/5000psi. (PASS) PT against TWC to 350/3500psi (PASS) RDMO ***Job 4/20/2019 Complete*** SEE LOG FOR DETAILS. Printed 6/12/2019 10:22:06AM **All depths reported in Drillers Depths" North America - ALASKA - BP Page 1 of 15 Operation Summary Report Common Well Name E-100 AFE No Event Type. RE-ENTER- ONSHORE (RON) Start Date 5/14/2019 End Date. 5/26/2019 X3 -019C7 -C: (1,935,703.00 ) Project PBU Site E Rig Name/No.: CDR -2 Spud Date/Time: 10/25/1997 12:00 OOAM Rig Release: 512812019 Rig Contractor: NABORS ALASKA DRILLING INC. BPUOI: USA00000716 Active datum: KB @71.00usft (above Mean Sea Level) Dale From - To Him Task Code NPT Total Depth Phase Description of Operations . (hr) _ (usft) 5/14/2019 00:00 - 03:00 3.00 MOB P PRE FINISH RIG DOWN HOLD PJSM FOR RIG MOVE PULL RIG OFF WELLAND MOVE TO SIDE OF _ PAD FOR SWAPPING CT REELS. 03:00 - 06:00 3.00 MOB P PRE SWAP COIL TUBING REEL TO 23/8"COIL 06:00 - 10:00 4.00 MOB P PRE INSTALL REEL HARDLINE. 10:00 - 13:00 3.00 MOB P PRE PJSM WITH NABORS AND PEAK CREW FOR MOVING OVER WELL. MOVE SUB OVER WELLAND SET DOWN. MOVE PIT MODULE NEXT TO SUB AND SET DOWN. ACCEPT RIG AT 13:00. 13:00 - 17:00 4.00 MOB P PRE CYCLE TREE VALVES, LEAVE MASTER OPEN FOR THERMAL EXPANSION. 'START R/U CHECKLISTS. PREP TO STAB PIPE. INSTALL GRAPPLE. REMOVE SHIPPING COVER FROM REEL. STAB PIPE 17:00 - 00:00 7.00 MOB P PRE _ PJSMAND REVIEW PROCEDURE FOR .INSTALLING CONNECTOR. INSTALL COIL CONNECTOR AND PULL TEST TO 50K LEAK TIGHT TEST MASTER AND SWAB VALVE TO 3500 PSI -GOOD TEST REMOVE TREE CAP NIPPLE UP BOPS RECONFIGURE TEST JOINT FOR 23/8'COIL COMPLETE RIG UP CHECKLIST BRING DRILLING FLUIDS ONTO RIG. INSTALL_ UQC WITHOUT FLOATS _ 5/15/2019 00:00 - 01:00 1.00 RIGU P PRE HELD PRE SPUD AND HZS DRILL WITH MICAH BUSHESCREW 01:00 - 02:00 1.00 RIGU P PRE MAKE UP NOZZLE TO COIL, INSTALL LUBRICATOR ON BOTTOM OF INJECTOR, MAKE UP INJECTOR 02:00 - 05:00 3.00 RIGU P PRE PURGE SURFACE LINES AND COIL WITH WATER, GREASE TREE VALVES, T1 AND T2 VALVESAND TORQUE TREE BOLTS, SHELL TEST BOP AND MUD PUMP 2 TO 250/4000 PSI. Printed 6/12/2019 10:22:06AM **All depths reported in Drillers Depths" North America - ALASKA - BP Operation Summary Report Page 2 of 15 Common Well Name: E-100 AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date. 5/14/2019 End Date: 5/262019 X3 -01907-Q (1,935,703.00) Project: PBU Site: E - - - Rig Name/No.: CDR -2 Sputl Date/1ime: 10/25/1997 12:0O:OOAM Rig Release: 5/28/2019 Rig Contractor: NABORSALASKA DRILLING INC. _ BPUOI: USA00000716 Active datum: KB @71.00us6 (above Mean Sea Level) Date From - To Him Task Code NPT Total Depth Phase Description of Operations _- - (hr) _ (usl _ _ 05:00 - 15:00 root) BOPSUR P PRE _ TEST BOPS ASPER AOGCC AND BP STANDARDS. TEST IS WITNESSED BY WSLAND TOOLPUSHER, AOGCC HAS WAIVED WITNESS. ALL TESTS TO 250 / 3500 PSI. TEST 1: IRV, RACKOFF, C9, C70 BACKWARDS -PASS TEST 2: BLIND / SHEARS. RI,BOA. BI, B4- PASS TEST 3: ANNULAR (2-3/8"), TIW1, B3, B2, BL1 - PASS TEST 4: UPPER 2-3/8" PIPE / SLIPS, TIW2, BL2, R2, T2, C15 - FAIL ON PIPE / SLIPS, CARRY ON WITH TESTING THE OTHERS. WILL CHANGE OUT UPPER 2-3/8" PIPE / SLIPS AND RE -TEST. TEST 5: C16, T7, Cit - PASS TEST6: VBR (2-3/8"), C7, C9, C10, TV2- FAIL ON C7. GREASE AND RE -TEST, PASS, TEST 7: LOWER 2-3/8" PIPE / SLIP, C5, C6, Ce, 'TV1-PASS TEST 8: CHOKE A, C - PASS TEST 9: ANNULAR (3-12"), C1, C4 - PASS TEST 10: VER (3-1/2") C2, C3- PASS j PJSM TO SWAP OUT UPPER 2-3/8" PIPE / SLIP RETEST UPPER 2-3/8" PIPE / SLIP-- PASS 15:00 - 19:30 4.50 RIGU P PRE RD TEST EQUIPMENT - SWAP OUT LUBRICATORS - INSTALL BHI CVS - PT THE CTC & UQC - STAB ON WELL, PT THE LUBRICATOR AND CHECK VALVES -GOOD TEST ON THE LUBRICATOR -PUMP SLACK FORWARD FOR ONE COIL VOLUME AT 2 BPM AT 1400 PSI -BREAK OFF INJECTOR AND RIG UP TEST PLATE AND TEST CHECK VALVES 19'.30 - 21:45 2.25 RIGU P PRE _ PULL TWC -HOLD PJSM WITH CREWAND REVIEW PROCEDURE -MOBILIZE LUBRICATOR AND EQUIPMENT TO RIG FLOOR. -MAKE UP PULLING TOOLAND MAKE LUBRICATOR UP TO WELL. -FLUID PACK STACK WITH METHANOL TO PT VC LUBRICATOR - WORK THROUGH COMMAND AND CONTROL VALVE CHECKLIST -PRESSURE UP TO 250 FOR VISUAL LTT - GOOD LOW GO TO 3700 HIGH PT -TIGHTEN MANIFOLD ON LUBRICATOR AND HOSE FITTING ON TEST PUMP. - GOOD PT, BLEED OFF AND OPEN UP TO TWC -TWC PULLED, WELL ON VAC - CLOSE M & S VALVES, LTT 3500 PSI CONFIRMED - REMOVE LUBRICATOR - LD TWC, BODY SEAL IS NOT ON PLUG, LOAD OUT Printed 6/12/2019 10:22o6AM "AII depths reported in Drillers Depths" Printed 6/122019 10.22:06AM --All depths reported in Drillers Depths" North America -ALASKA - BP Page 3 of 15 Operation Summary Report Common Well Name: E-100 AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 5/14/2019 End Date. 5/26/2019 X3 -019C7 -C: (1,935,703.00 ) Project: PBU --- - Site: E - -- - Rig Name/No.: CDR -2 Spud DateTme: 10/25/1997 12:00:OOAM Rig Release: 5/28/2019 Rig Contractor: NABORSALASKA DRILLING INC. BPUOI: USA00000716 Active datum: KB @71.00usft (above Mean Sea Level _ Date From - To Hrs Task Code NPT Total Depth Phase Description of Operations (hr) _ _ (u_sft) 21:45 - 00:00 2.25 RIGU P PRE WELL KILL -HOLD PJSM WITH CREW -MAKEUP NOZZLE BHA WITH CHECKS -MAKE UP INJECTOR AND TEST LUBRICATOR TO 3500 PSI -GOOD TEST -DISPLACE FRESH WATER FROM COIL WITH 15 BBL MEOH SPEAR FOLLOWED BY 8.4 PPG SLICK KCL -LINE UP TO TAKE RETURNS TO TIGER TANK -OPEN MASTER AND SWAB VALVE -0 PSI ON WELL 5/16/2019 00:00 - 00:30 0.50 RIGU P PRE WELL KILL —PUMP 0.25 BPM/ 0.33 OUT AT 22 PSI WELL TOOK 5 BBLS TO FILL - _ RIH TO 200' 00:30 - 01:00 0.50 RIGU P PRE RIG MAINTENENCE I -ADJUST ROLLERS ON HORSE HEAD -SECURE INNER REEL IRON -ADJUST COUNTER WHEELS -GREASE HORSE HEAD -TIGHTEN SADDLE CLAMPS ON REEL HUB 01:00 - 06:30 5.50 KILLW P 12,992.00 PRE WELL KILL -PUMP 0.25 BPM / 0.33 OUT AT 22 PSI at 20 FPM -PUMP 0.25 BPM 10.56 OUT AT 22 PSI at 60 FPM -RIH FROM 200' TO 10300' -MAINTAINING 1 FOR 1 RETURNS NOTE: INITIAL WELL ENTRY WITH NEW COIL RUN AT 60 FPM. NOTE AT 6000' STOP FOR 10 MINUTES AND CHECK TORQUE ON SADDLE CLAMPS - 05:50 TAG PINCH POINT AT 12992', PU WT = 62K - CLOSE CHOKE, CHECK SADDLE CLAMPS ON REELAND SUCK OUT TIGER TANK NOT ENOUGH ROOM FOR BTM'S UP KILL Printed 6/122019 10.22:06AM --All depths reported in Drillers Depths" Printed 6112/2019 10:22:06AM **All depths reported in Drillers Depths" North America - ALASKA - BP Page 4 of 15 Operation Summary Report Common Well Name: E-100 AFE No Event Type: RE-ENTER- ONSHORE (RON) Start Date: 5/14/2019 End Date: 5/262019 X3-019C7-C: (1,935,703.00 ) Project PBU Site E Rig Name/No.: CDR-2 Spud DateRime: 10/25/1997 12:00:OOAM Rig Release: 5/282019 Rig Contractor: NABORSALASKA DRILLING INC. BPUOI: USA00000716 Active datum: KB @71.00usft (above Mean Sea Level) - - - _- - Date From -To His Task Code NPT Total Depth Phase Description of Operations (hr) (usft) 06:30 - 12:00 5.50 KILLW P - 12,992.00 PRE -BOTTOMS UP KILL - PUMP 210 BBLS OF HOT KCL TO CONDITION WELL - SWAP TO 8.6 PPG MUD -CHOKE PACKED OFF AFTER 82 BBLS PUMPED, WHP BLEEDING OFF, BLEED OFF RESIDUAL PRESSURE - LINE UP TO BLOW DOWN CHOKE - BACK ON LINE - BOTTOMS UP IS CLEAN, NO GAS ON FIRST CIRCULATION - SWAP TO 8.6 PPG MUD - TAG WS, MUDAT NOZZLE, PUH SLOW - BLEED OFF OA FROM 678 PSI TO 350 PSI -0.25 BBLS - 1.5 VOLUMES CIRCUALTED CLEAN RETURNS -MUD TO SURFACE, BRING RETURNS INSIDE, REDUCE RATE TO DRILLING RATE -SHUT DOWN PUMP AND FINGERPRINT BLEED OFF TO NO FLOW - BLED OFF 1.0 BBLS IN 2:22 -FLOW CHECK WELL . -GOOD NO FLOW, POOH - JOG IN HOLE AT SURFACE 100' -FLOW CHECK - GOOD NO FLOW, CREW CHANGE AND PJSM TO LD THE NOZZLE BHAAND MU THE BHA 12:00 - 17:30 5.50 STWHIP P 12,886.00 WEXIT _MILLING WINDOW MILLING OPS - LD NOZZLE BHA - MU MILLING BHA - MU THE INJECTOR, PT THE QTS AND RIH - LOG TIE IN AT 12,680' - CORRECT DEPTH <', PU WT 50K RIH WT = 21K - CLOSE EDC AND RIH TO TAG - TAG AT 12981' WITH 4K WOB, PU 10' AND START MOTOR AND VERIFY PINCH POINT OR CMT 17:30 - 00:00 6.50 STWHIP P 12,986.00 WEXIT TAG AT 12989.0'AND START MILLING 100 A. WINDOW TO 12996 FREE SPIN: 2620 PSI, 2.79 BPM - RATE: 2.79 BPM IN, 2.80 BPM OUT. CIRC PRESSURE: 3842 PSI -MUD WEIGHT: 8.61 PPG IN, 8.53 PPG OUT, ECD: 9.87 PPG - WEIGHT ON BIT 1- 3 K Printed 6112/2019 10:22:06AM **All depths reported in Drillers Depths" 1 F= roue_."e" cn WELLHEAD = F_ MC 11 ACTUATOR= _ BAKER OKB. ELEV = BF. ELEV 71' 31.16' KOP= 1100' MaXA ID= 57` 0 39W Da"n MD = Daaxn TVD = _ 11771' 8050' SS ILrE Minimum ID = 3.813" @ 2242' 4-1/2" HES HXO SVLN ASSY 4-1/2" TBG, 12.69, L-80, .0152 buf. ID= 3.958' Im 412' BKR MONOBORE WS 12988_' w/RA TAGS (228/19) 41/2- C O = 3.958" E-100 SAFETY NOTES: CEMENT CAP@12370' ID = 3.813" GAS LFT MANr1RR R ST PERFORATION SLRAMARY ND REF LOG: WG-BHCSIGR ON 1124/97 TYPE ANGLEAT TOP PBRR 47" @ 11665' NDte: Fiefer to Production DB far historical pert data SIZE SPF INTERVAL OPWScFz DATE 3-3/8" 6 11665 -11775 S 0328/19 3-3/8• 8 11775 - 11795 S 0326x19 3-318" 6 12960- 13010 C 08/12/00 2-7/8" 6 13150- 13155 C 12/26/97 2-1/2" 4 13155 - 13165 C 12/19/97 41/2- C O = 3.958" E-100 SAFETY NOTES: CEMENT CAP@12370' ID = 3.813" GAS LFT MANr1RR R ST MD ND DEV TYPE VLV LATCH FORT DATE 6 3401 3072 47 K5G2-LS MY M 0 0826/18 5 5101 4079 54 KBG-2-LS OMY HT 0 0826/18 4 6751 5070 52 KBG-2-LS DW M 0 0826/18 3 8441 6069 54 KBG-2-LS DRO' M 0 0826/18 2 10094 7067 52 KBG-2-LS DMY NT 0 0826/18 1 11543 7964 50 KBG-2-LS DW M 0 0826/18 HES X MP, ID = ID = 3.875" HES X NIP, ID = 71 1946' I -14-1/T WLEG, 3.958" 77648' ELMD TT LOGGED12/12/97 PKR/ HGR X NIP. ID = 14-12- HES X NIR ID = 3.813" 1 12893' —4-12- WFD CBP(0224/19) 12994' FISH: SL TOOLSTRING LOST ON TOP OF PLUG 29.7' OAL, (0826/18) 11 uc nrn n"nr, lu—J.rLJ- W/XXN PLUG SET 01/11/98 BP Exploration (Alaska) THE STATE OIALASKA GOVERNOR MIKE DUNLEAVY March 21, 2019 Ms. Katrina Garner West Area manager/Reservoir Management, Prudhoe Bay Unit BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612 Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 www. a og cc.olaskci.gov RE: Docket Number: CO -19-010 Request to transfer a waiver of the gas oil ratio limitations of 20 AAC 25.240(a) from well Prudhoe Bay Unit E-100 (PTD 197-188) to the Prudhoe Bay Unit E- IOOA (PTD 218-157) Dear Ms. Garner: By letter dated March 4, 2019, BP Exploration (Alaska), Inc. (BPXA) requested that a waiver of the gas -oil ratio limitations in 20 AAC 25.240(a) granted on February 22, 2018, for the testing of the Prudhoe Bay Unit E-100 well (PBU E-100) (PTD 197-188) be transferred to the well Prudhoe Bay Unit E-IOOA (PBU E-IOOA) (PTD 218-157). 1 BPXA stated that the PBU E-100 well proved not useable for the planned test of the Sag River and Ivishak formations and that the PBU E-IOOA well will be drilled to replace the PBU E-100 wellbore and conduct the proposed flow test. BPXA's request is granted under the conditions below. The PBU E-100, was completed as a water injector in the Midnight Sun Oil Pool, but is no longer needed since it was replaced by the PBU P1-122 well. The PBU P1-122 has the capability to inject miscible injectant, which the PBU E-100 lacked since there was no MI supplied to E -Pad. Since this well was no longer needed as a Midnight Sun injection well BPXA planned to recomplete the well to conduct an extended flow test in the Sag River and Ivishak Formations. The Prudhoe Oil Pool (POP) contains the Sag River and Ivishak formations and has an existing GOR waiver due to the ongoing enhanced recovery project in the POP, but the location of the PBU E-100 was outside the affected area of the POP. The PBU E-100 well proved unusable for the planned test and BPXA has proposed drilling the PBU E -100A sidetrack to conduct the planned test of the Sag River and Ivishak formations in this portion of the field. Since the PBU E -I OOA well would be outside the POP boundary it is subject to statewide regulations and the GOR limitations of 20 AAC 25.240 apply to the proposed test of this well. BPXA plans to collect detailed well testing data and fluid samples, after completion of this testing period BPXA plans to connect the well to temporary production facilities and put it on regular production to collect longer term performance data. BPXA will make future Docket Number: CO -19-010 March 21, 2019 Page 2 of 2 development decisions, which may include expanding the POP to encompass this area, based on the results of the collected performance data. Because the GOR of the well might increase above the GOR limits during testing, BPXA has requested a GOR waiver while it collects reservoir performance data in order to determine future development plans for this area. In accordance with 20 AAC 25.240(b)(3) BPXA's request is granted on the following conditions: I) The GOR waiver for the PBU E-100 well dated February 22, 2018, is hereby rescinded. 2) The PBU E-IOOA well must be tested in accordance with the PBU's well testing and allocation procedures and must be tested at least twice per month while flowing. 3) The GOR waiver expires one year after the extended flow testing period commences. BPXA must notify the AOGCC when the extended flow testing period commences. 4) On a quarterly basis, the operator must submit copies of all well tests for the PBU E-1 OOA well showing the GOR at the time of the test. 5) Prior to expiration of this GOR waiver the operator must meet with the AOGCC to discuss results during this test period and future development plans for this area. DONE at Anchorage, Alaska and dated March 21, 2019. OILZ 1�l Daniel T. Seilmount, Jr.Je e L. Chmielowski �. Commissioner 'ssioner " .. rIMP As provided in AS 31.05.080(a), within 20 days after written notice of the entry of this order or decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for reconsideration of the matter determined by it. If the notice was mailed, then the period of time shall be 23 days. An application for reconsideration must set out the respect in which the order or decision is believed to be erroneous. The Commission shall grant or refuse the application for reconsideration in whole or in part within 10 days after it is filed. Failure to act on it within 10 -days is a denial of reconsideration. If the Commission denies reconsideration, upon.denial, this order or decision and the denial of reconsideration are FINAL and may be appealed to superior court. The appeal MUST be filed within 33 days after the date on which the Commission mails, OR 30 days if the Commission otherwise distributes, the order or decision denying reconsideration, UNLESS the denial is by inaction, in which case the appeal MUST be filed within 40 days after the date on which the application for reconsideration was filed. If the Commission grants an application for reconsideration, this order or decision does not become final. Rather, the order or decision on reconsideration will be the FINAL order or decision of the Commission, and it may be appealed to superior court. That appeal MUST be filed within 33 days after the date on which the Commission mails, OR 30 days ifthe Commission otherwise distributes, the order or decision on reconsideration. In computing a period of time above, the date of the event or default after which the designated period begins to run is not included in the period; the last day of the period is included, unless it falls on a weekend or state holiday, in which event the period runs until 5:00 p.m. on the next day that does not fall on a weekenri r.e �t.ta t,..t:ae., ZE March 4, 2019 Commissioners Alaska Oil and Gas Conservation Commission 333 West Ph Ave, Suite 100 Anchorage, AK 99501 RE: Docket Number OTH-18-017 E -100A: Transfer of Temporary GOR Waiver from E-100 Dear Commissioners: BP ExFioradon (AlaSka)Inc 990 East Benson Boulevard PC Box 196612 Anchorage, Alaska 99519-66'2 (90 7) 56!.51`1 s MAR 9 9 2919 AOGLL BP Exploration (Alaska), Inc (BPXA), as operator of the Prudhoe Bay Unit, requests that the temporary GOR waiver granted February 22, 2018 for the E-100 recompletion attempt be transferred to the sidetrack E -100A (PTD 218-157). E -100A is a new wellbore which will be drilled because E-100 was not useable for its planned test. In E- I00A, BPXA plans to collect the same data as were proposed for the E-100, and requests the same time frame (one year from commencement of extended flow testing) for the temporary waiver. If you have any questions regarding the reports please contact Bill Bredar at 564-5348 or through email at William.bredargbp.com. Respectfully, Katrina Garner West Area Manager/Reservoir Management, Prudhoe Bay Unit Alaska Reservoir Development, BPXA Cc: Eric Reinhold, ConocoPhillips Alaska, Inc Jeff Farr, ExxonMobil Alaska, Production Inc Dave White, Chevron USA Dave Roby, AOGCC Kevin Pike, SOA DNR -Division of Oil and Gas OF ? • • THE STATE Alaska Oil and Gas of LASKA Conservation Commission 5 }�z 333 West Seventh Avenue ' ''' GOVERNOR BILL WALKER Anchorage, Alaska 99501-3572 OF * Main: 907.279.1433 S- Fax: 907.276.7542 www.aogcc.alaska.gov Joleen Oshiro G Pad Engineer/New Wells Delivery PE(GC1/FS3/GC3) BP Exploration(Alaska)Inc. �� P.O Box 196612 Anchorage,AK 99519-6612 Re: Prudhoe Bay Field, Midnight Sun Oil Pool, MSUN E-100 Permit to Drill Number: 197-188 Sundry Number: 318-057 Dear Ms. Oshiro: Enclosed is the approved application for sundry approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the AOGCC grants for good cause shown,a person affected by it may file with the AOGCC an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, (kVOCC Hollis S. French Chair DATED this day of March,2018. �✓ Yr18 • STATE OF ALASKA RECEIVED ALASKA OIL AND GAS CONSERVATION COMMI•N APPLICATION FOR SUNDRY APPROVALS FEBC��J 3U Z 18 2��0��ppA��A 25.280 j 1. Type of Request: Abandon 0 Plugon 0 a,s/0 PIli lStimulate ❑ Repair Well ❑ Operatidn d� Suspend 0 Perforate 0 Other Stimulate 0 Pull Tubing 0 Change .. • . •,; Plug for Redrill 0 Perforate New Pool 0 Re-enter Susp Well 0 Alter Casing 0 Other Inj=>Prod Convert H' 2. Operator Name: BP Exploration(Alaska),Inc 4. Current Well Class: 5. Permit to Drill Number 197-188 • 3, Address: P.O.Box 196612 Anchorage,AK Exploratory 0 Development ❑ 6. API Number: 50-029-22819-00-00 ' 99519-6612 Stratigraphic 0 Service IZJ' 7, If perforating: 452 8. Well Name and Number: What Regulation or Conservation Order governs well spacing in this pool? Will planned perforations require a spacing exception? Yes RI No 0 MSUN E-100 • 9. Property Designation(Lease Number): 10. Field/Pools: ADL 0028299 ' PRUDHOE BAY,MIDNIGHT SUN OIL " 11. PRESENT WELL CONDITION SUMMARY Total Depth MD(ft): Total Depth TVD(ft): Effective Depth MD: Effective Depth TVD: MPSP(psi): Plugs(MD): Junk(MD): 13282 - 9423 • 11846 8172 Casing Length Size MD TVD Burst Collapse Structural Conductor 80 20" 43-123 43-123 1490 470 Surface 4406 9-5/8" 43-4448 43-3694 6870 4760 Intermediate 12874 7" 40-12914 40-9079 8160 7020 Production Liner 1382 4-1/2" 11845-13227 8171-9371 8430 7500 Perforation Depth MD(ft): Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): 11665-11795 8045-8136 4-1/2"12.6# L-80 38-11653 Packers and SSSV Type: 7"X 4-1/2"Baker SABL-3 Packer Packers and SSSV MD(ft)and TVD(ft): 11620/8015 No SSSV Installed No SSSV Installed 12.Attachments: Proposal Summary p Wellbore Schematic QI 13.Well Class after proposed work: Detailed Operations Program l I BOP Sketch ❑ Exploratory 0 Stratigraphic 0 Development I3 Service 0 14.Estimated Date for Commencing Operations: February 22,2018 15. Well Status after proposed work: Oil IZI WINJ 0 WDSPL 0 Suspended 0 16.Verbal Approval: Date: GAS 0 WAG 0 GSTOR 0 SPLUG 0 Commission Representative: GINJ 0 Op Shutdown 0 Abandoned 0 17.I hereby certify that the foregoing is true and the procedure approved herein will not Contact Name: Oshiro,Joleen be deviated from without prior written approval. Contact Email: JOLEEN.OSHIRO@bp.com Authorized Name: Oshiro,Joleen Contact Phone: +1 907 564 4606 Authorized Title: G Pad Engineer/New Wells Delivery PE(GC1/FS3/GC3 Authorized Signature: .9(70,01......„.� � Date: 11 /I p COMMISSION USE ONLY Conditions of approval:Notify Commission so that a representative may witness Sundry Number /I Plug Integrity 0 BOP Test 0 Mechanical Integrity Test 0 Location Clearance 0 Other: &0R. ,f iy1---/ / /1‘dY, vV'a-1 v'�r_ a- 9 l�-t kr tr-c]° Vv/t J b C c ,4 i ti a7i 5 eq-.5 c: H � G 11 r C✓ Post Initial Injection MIT Req'd? Yes 0 No citv—/ a 0 A 4-CZ S, 24U(b)( 3)' Spacing Exception Required? Yes 0 No 12 Subsequent Form Required: /0 — 4 o to:-. . APPROVED BYTHE 1 Approved by: ._]�/ • COMMISSIONER COMMISSION Dater ( I I 4.)r \lb R2 '::::".".."-S , , t 1 � ��:..i. i'_ ,' 8 ORIGINAL # 07 45 ubmit Form and Attachments in Duplicate Form 10-403 Revised 04/2017 Approved application is valid for 12 months from the date of approval. • S vtk.440 • • JO 14 00400 Alaska Oil and Gas Conservation Commission 3333 West Seventh Avenue Anchorage, AK 99501-3572 RE: BP Exploration (Alaska), Inc. Application for Sundry Approval (10-403) February 9, 2018 To Whom it May Concern: Attached please find the Sundry Application for Conversion from Injection to Production for well MSUN E-100, PTD #197-188. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachments: Supplement To 10-403 Proposal Summary Form 10-403 Current Wellbore Schematic Detailed Statement of Requirements Proposed Wellbore Schematic Mini-log a • Supplement to 10-403 Well MSUN E-100 BP is submitting the attached Sundry for well work to convert the injection well E-100 (API#50-029- 22819-00) in the Midnight Sun Oil Pool into a production well located in the Ivishak Formation in lease , ADL028299.The Ivishak penetration of E-100 is located outside the defined Prudhoe Bay Oil Pool boundary. The recompletion well work will support an extended flow test to collect pool performance data to determine the optimum reservoir management program and may ultimately result in a request to expand the Prudhoe Oil Pool to cover this well. An exception from the Gas-oil ratio limitations under 20 AAC 25.240(b)(3) is requested. The Summary steps for the intervention are as follows: 1) Well integrity screening to confirm well is fit for service as a gas lifted producer. 2) Coil tubing fill clean out, injectivity test and cement squeeze to permanently isolate the Midnight Sun Injection perforations. 3) Coiled tubing fill clean out to remove the cement cap and sand plug currently in the well isolating the Sag River and Ivishak perforations. 4) Flow the well through a portable test separator for 30 days to collect detailed well test data to understand performance. During this time, a downhole shut-in tool will be used to collect a pressure build up on the Ivishak perforations and an independent static bottom hole pressure survey will be performed on the Sag perforations. Isolated and commingled fluid samples will be collected on the Sag River and Ivishak perforations. 5) A scale inhibition treatment will be pumped to prevent scaling during the production period. 6) After 30 days of detailed well testing, a temporary flowback skid will be used to extend the production test to collect longer term data on water cut and GOR trends. If the production trends during the test period change by >10,000 scf/bbl GOR or the WC increased by >10% a production log or flow splits by difference will be performed. The detailed Statement of Requirements, Current Wellbore Schematic, Proposed wellbore schematic and Mini-log are attached for your information. Sincerely, Y CUA pre SO9aeCt 1�✓e�� ✓as f'C/��6e COQ r'f, Alt Cat ciL �i'tyf0 T�►�/ Laurie Derrick q-A t t J c(f0' (,✓ // E-pad Petroleum Engineer c� Peeh�r 0414 74:fBP Exploration, Alaska w�L� `f �� Ohf �U re5r � vi'f44k (vr/Nah'`B" C°4/1d jD 1'nero rzCf1✓ey -from roe l .401. TRa= 1/16",5000 PSI • WTI HEADATOR= BAKE E-100 O O SAFETY NOTES: CEMENT CAP @ 12370' KB.aEV= 69' BF.ELEV= - KOP= 1100' Max Angle= 57 @ 3950' 0 2242' - 4-1/2"HES,HXO SVLN ASSY,D=3.813" Datum WD= 11771' Datum TVD= 8050'SS 9-5/8"CSG,47#,L-80,D=8.68r H 4441' —Al GAS LFT MANDRELS ST MD TVD DEV TYPE VLV LATCH FORT DATE 1 3401 3073 47 KBG-2-LS NT Minimum ID = 3.813" @ 2242' ' I 2 5101 4079 53 KBG 2-Ls NTt- 6751 5069 52 KBG 2-LS NT 4-1/2" HES HXO SVLN ASSY 4 8441 6069 53 KBG-2-LS NT 5 10094 7067 52 KBG-2-LS NT 6 11543 7964 49 KBG-2-LS NT I I 11609' H 4-1/2"FESXNIP,D=3.81" R >< 11620' H 7"X 4-1/2"BAKER SB-3 PKR,D=3.88" 11635' H 4-112"FES X NIP,D=3.81- 4-1/2"TBG,12.6#,L-80,.0152 bpf,D=3.958" H 11646' 11645' H 5"WLEG 11648' 1—f E LMD TT LOGGED 12/12/97 I - TOP OF 4-1/2"LNR H 11852' X —,-, 11852' H ZXPRHGRBAKER PERFORATION SUMMARY RET LOG SWS-BHCS/GR ON 11/24/97 ANGLE AT TOP PERE:47 @ 11665' I 1 11870' H 4-1/2"HES X NP,D=3.813" Note: Refer to Production DB for historical perf data SIZE SPF NTERVAL Opn/Sqz ELATE 3-3/8" 6 11665- 11775 0 11/17/00 X71= 12403' --I SAND PLUG WITH CEMENT CAP 3-3/8" 8 11775- 11795 0 11/07/00 3-3/8" 6 12960- 13010 C 08/12/00 1 I12900'12900' —I 4-1/2"HES X NP,ID=3.813" 2-7/8" 6 13150- 13155 C 12/26/97 2-1/2" 4 13155- 13165 C 12/19/97 1 7'CSG,29#,L-80,ID=6.184" H 12906' mi 13024' -4-1/2"FES XN NIP,D=3.725" W/XXN PLUG SET 01/11/98 PBTD H 13175' • • 4-1/2"LNR, 12.6#,L-80, .0152 bpf,D=3.958" H 13277' A£M DATE REV BY (DPW'TTS - DATE FEV BY COPW'TTS MIDNIGHT SUN UNIT 12/15/97 ORIGNAL CONI EfION WELL: E-100 10/25/00 SS-Isl CONVERTED TO CANVAS PERIAT No. 1971880 01/10/01 SIS-LG REVISION AR No: 50-029-22819-00 10/04/01 F'MTP CORRECTIONS SEC 6,T11N,R14E 5000'NSL&500'VVEL 04/08/03 DRS/TP TVD/MD CORRECTIONS 07/18/17 LMJND CORRECTIONS TO SAND 8 CMT BP Exploration(Alaska) • • ALASKA WELL ACTIVITY STATEMENT OF REQUIREMENTS (V2.0, DBR,LHD, EAZ, BPG 10/12/15) General Information Well Name: E-100 Well Type: Water Injection Well API Number: 50-029-22819-00 Well Activity Conventional 3 Classification: Activity Description: Producer Conversion Cost Code/AFE: APBINJEC Field/Reservoir: MIDNIGHT SUN 12 Month Avg IOR, 486 bopd: Job Type: Prod Cony Estimated Cost, $615 $K: AWGRS Job Scope: PROFILE MODIFICATION Other regulatory DNR Tract Operations requirements? Sundry Form 10-403 Yes Required? Sundry Form 10-404 Yes Primary Required? Secondary Engineer: Laurie Derrick Contact numbers: (907) 564-5952 (720)308-3386 Well Intervention Engineer: Michael Hazen Contact numbers: (907)268-9279 Lead Engineer: Laurie Derrick Contact numbers: (907) 564-5952 (720) 308-3386 Date Created: July 25, 2017 Revisions(date,who,what changed): 1/15/18-L.Derrick-Update&Review Current Well Status Information Water Rate or Gas Rate or FTP or Injection Oil Rate Inj Rate Gas Injection GOR Gas Lift Rate Date Choke SettingPressure (bopd) (bwpd)Water Rate (scf/stbo) (Mscf/Day) Cut(%) (Mscf/Day) (psi) 5/3/2017 8,510 1,839 Current Status: Operable Flowing Inclination>70°at Depth (ft) NA Recent H2S (date, ppm) 11/1/1998 5 Maximum Deviation (Angle and ppm Depth) 57° 3,950' MD Datum depth,ft TVDss 8,050'TVDss Dogleg Severity(Angle and Depth) 5° 12,000' MD Reservoir pressure(date, psig) 8/6/2017 3,834 psi Minimum ID and Depth 3.725" 13024' Reservoir Temp, F 138° F Shut-in Wellhead Pressure 200 psi Known mech. integrity None problems(specifics) Last downhole operation(date, operation) 8/12/2016 SBHP Most recent TD tag (date,depth, toolstring OD) 8/12/2016 11780'elmd 2.5"Sample bailer Surface Kit Fit-for-Service? YES If No,Why? If well has been shut in for> 1 year or job cost>$500M, fill out Non Rig Surface Equipment Checklist. • • Comments,well history, History background information, E-100 was drilled in 1997 to appraise a number of hydrocarbon accumulations north of the main Prudhoe etc: Bay field. The well penetrated reservoir quality, hydrocarbon bearing Kuparuk, Sag River and Ivishak Sands. It also passed through hydrocarbon bearing Sierra Nevada sands, but they were deemed to be low reservoir quality. E-100 was initially perforated in the Ivishak sands. A flow test and pressure build up were conducted in the Ivishak from 12/20/97-2/7/98. The Ivishak perfs tested at-1000-2000 bopd, 9-16%WC, 500-1300 scf/bbl GOR at 500-psi WHP. The Ivishak pressure was-3677-psi, which aligns with the regional pressure on E- pad at the time of the test. It is believed that Sambucca is in pressure communication with the main Prudhoe field via the aquifer so the reservoir pressure could be as low as 3300-psi in the Ivishak perforations. On 1/11/98, a XXN plug was set in the nipple at 13025'md and the Kuparuk sands were perforated and flow tested from 1/20/98-2/7/98. The Kuparuk interval tested at 3900 bopd, 0%WC, 387 scf/bbl GOR at 650-psi WHP so it was developed as the primary target. In September, 2000, the Sag River sands were perforated and flow tested while commingled downhole with the Kuparuk interval. During the test, a PPROF was run,which confirmed the Sag interval was producing in the gas phase. During the commingled test, the well was making 2850 bopd, 0%WC, 12.4 mscfd F. gas, 4450 scf/bbl GOR. Following the Sag flow test, 6200 lbs of river sand and a 1/2 bbl glass G cement cap were placed on the XXN plug to isolate the Sag and allow injection into the Kuparuk sands. E-100 was converted to injection in the Kuparuk sands and has operated as a PWI since 10/2000. E-100 was recently replaced in the Kuparuk/Midnight Sun reservoir by the new injector P1-122. E-pad does 'not have a MI supply line, so P1-122 was drilled from Point Mac 1 pad to allow MI flooding in the Midnight Sun. The well replaced-the E-100 BHL in Midnight Sun and has been on injection since-CUNT',o er, 16. Sambuca Flow Test Since E-100 is no longer needed to provide injection into the Midnight Sun/Kuparuk interval, the well is available for use as a development well in the Sambuca/Ivishak interval. The purpose of this SOR is to perform a profile modification to isolate the Kuparuk perfs and collect an extended flow test on the Ivishak and Sag river perforations. Since E-100 has operated as an injection well, there are no surface production flowlines. E-100 will be produced through a portable test unit tied into a neighboring producer flowline (E-34 and E-31 suggested). E-100 has an integral flange that can be used for separator rig-up. Use of a temporary choke skid to allow production for an extended period up to 120 days is included. E-100 will need gas lift to facilitate the FCO and production from the Ivishak perforations if production with the Sag is not commingled. E-pad does not have clean gas lift supply lines so DPBGL will be sourced from neighboring well, E-10. Well Integrity and Recent Drifts 8/12/16:Tag 11780' elmd with 2.5"SB (sample of schmoo) 7/16: PPPOT-T passed, MIT-IA to 2500-psi passed Note: TIOs show some trending between IA and OA. Likely thermal expansion due to fluid packed annuli, but could be a potential problem. PPPOT-IC requested to confirm. Well Intervention Details Please contact the SOR author if: 1.There is a change in work scope to the approved SOR 2.For wet work>$100M estimated total cost, as soon as it is reasonably anticipated that the actual cost will exceed the estimated cost by 20%. Suspected Well Problem: Reservoir zone not open • • Specific Intervention or Well Objectives: 1 Confirm E-100 integrity for gas lifted service. Collect tubing caliper. Perform PPPOT-T& PPPOT-IC, MIT-IA. Permanently Isolate the Kuparuk/Midnight Sun injection perforations at 11665-11795'md (consider use of sqzcrete or 2 microfine cement).A bottom hole pressure via surface pressure fall off was collected during the 2017 GC1 TAR and was 3834-psi at 8050'ss MNS datum. 3 Regain access to the Sag and Ivishak perforations—perform FCO to plug at 13024'md. Pull XXN plug from 13024'md. FCO below plug to ensure Ivishak perforations are accessible. 4 Evaluate Sag only production. Collect Sag only welltests and test separator fluid samples to confirm production rate, GOR, oil API gravity, and gas C1/C3 to estimate yield 5 Collect Ivishak only PBU with DHSIT set at 13024' and to confirm Ivishak reservoir pressure and attempt to identify any barriers/baffles that limit the size of the Ivishak fault block. Flow Sag perforations during Ivishak PBU. 6 Collect Sag only SBHP prior to pulling DHSIT to confirm Sag reservoir pressure and determine whether Sag/Ivishak are in communication. 7 Perform extended flow test of commingled Sag/Ivishak for as long as AOGCC approval is valid. Use portable TS for extended flow test up to 30 days. Use Temporary flowback skid for the extended test to achieve extended production. Collect production splits by difference by setting a plug at 13024'md at the beginning of the extended flow test. Collect repeat 8 production splits by difference following any major production change(GOR increase> 10,000 scf/bbl, WC increase> 10%). Collect final production splits by difference one week prior to the end of the extended flow test. Pump SIT for commingled Ivishak and Sag formation following Initial flow test and DHSIT/PBU period. SIT should be 9 pumped within 1 week of the beginning of the sustained commingled flow period (after all surveillance activities are complete). Key risks, critical issues: Mitigation plan: Well has been operating as an Injector since 11/2000. Well has MIT-IA to 2500-psi and PPPOT-T passed 7/2016. Perform 1 never been subjected to gas lifting operations. Tubing integrity MIT-IA& PPPOT-IC prior to intervention. Include caliper of unknown. PPPOT-IC integrity unknown. 4.5"tubing as part of this intervention. Kuparuk perfs occluded by Schmoo causing poor squeeze or Perform SBG/FCO prior to sqz. Perform contingency 2 Kuparuk squeeze breaks down causing rapidly increasing water squeeze if post sqz pressure test fails. cut Future option to run a mechanical assembly(QCLL) across Kuparuk if sqz breaks down. Follow FCO RP. Set GL design and use DPBGL from E-10 Unable to re-access Sag and Ivishak perforations. FCO fails during FCO to ensure fill is being lifted from wellbore. Note: 3 and/or XXN plug is stuck in nipple at 13024'md. Dmy GLVs were set in 1998 and 2000-may be stuck. Plan fish plug with coil to ensure retrieval and minimize rig- ups. If very stuck, consider spot acid on plug to loosen. Accept the lack of PBU data. Collect Ivishak only SBHP by 4 Ivishak PBU is compromised due to DHSIT failure. setting a plug with memory gauges hung below it in nipple at 13024'md. Commingled production trends are complicated making it Perform PPROF near the beginning and the end of the flow 5 difficult to understand the GOR/WC trends in the Sag vs. the test period. PPROFs can be performed by setting a plug at Ivishak. 13024'md to collect Sag only production data and update zonal splits by difference. • • Isolate Sag perforations with a straddle patch designed to 6 Sag perforations are uncompetitive(HGOR) allow insitu gas lift from the Sag. If needed, patch procedure will be submitted in a separate SOR. Ivishak perforations experience scaling during extended flow 7 test. Pump SIT within one week of extended flow test start. E-100 is three wells south of E-07A on the main row of E- 8 Simops with Sidetrack E-07A. On the CDR2 drilling schedule pad. E-pad has tight clearance and it may not be feasible to for April/May 2018 perform this intervention while drilling is working on E-07A. Consider simops in scheduling. Summary Service Line Activity Step# 1 DHD PPPOT-T, PPPOT-IC, MIT-IA 2 S D&T, Tubing caliper 3 C Drift, FCO, SBG treatment, Injectivity test, cement squeeze 4 F WOC 72 hours, MIT-T to confirm sqz worked 5 S Install LGLVs, RU DPBGL from E-10 6 C Mill cement, FCO sand plug, Pull XXN plug, FCO to TD 7 T Assist coil with FCO. Testers will stay rigged up from this point forward. 8 S D&T, Set DHSIT at 13024'md. 9 T POP well. Produce for 8 days. Collect continuous 12 hour WTs during this period. SI well for 10 days. Testers can rig down at this time, but will need to be back to POP well in 10 days. 10 DHD Shoot tubing FL when well is SI. 11 F FP well for Sag only SBHP build-up period. 12 S After 18 days (3 day commingled flow, 5 day Sag only flow, 10 Day SI) Drift, perform Sag SBHP, Retrieve DHSIT. 13 T POP well. Flow commingled for 20 days. Collect continuous well tests. 14 F Within 1 week of sustained commingled production, pump SIT. 15 S Contingent: Production splits by difference. If GOR increases>10,000 scf/bbl or WC increases>10%. SL set plug at 13024'md to isolate the Ivishak. Collect Sag only production test to confirm splits. 16 T Use Temporary flowback skid to extend flow period until permanent WTI is complete. Detailed work scope(If no RP/SOP exists for the intervention type,a well-specific procedure is required in addition to the SOR): See detailed procedure attached to the SOR. Performance Expectations(may be NA if no change anticipated due to the intervention) Expected Production BOPD: 2000 MMSCFD: 12 BWPD: 250 Rates: FTP(psi): 400 Choke setting: 96 PI(bfpd/psi dp) Post job POP instructions: POP well to portable test separator. Use DPBGL as needed from E-10. Flow down E-31/E-14 production line. • TREE= 1/16',5000 PSI WELLI-EAO= 1-MC:,11a a SAI E TY NOTES: CEMENT CAP g 12370' ACTUATOR OR= BA K132 - KB B_EV= 69' BF.ELEV KOP= 1100' Mu Angle= 57 is 3950' O 2242' 1 4-112'VES,HX0 SVLN ASSY,D=3.813' Datum MO- 11771' Datum TVD= 13050'SS 9 518'GSG,47#,L-80,D-8.681' ---t 4441' ^4111 GAS LFT MANS ST MD TVD DEV TYPE VLV LATCH PORT DATE 1 3401 3073 47 KBG-2-1 S NT Minimum ID = 3.813" 2242' 2 5101 4079 53 KBS-2—LS Nr 3 6751 5069 52 KBG-2-LS NT 4-112" HES HXO SVLN ASSY 4 8441 6069 53 KBG-2-LS NT s 10094 7067 52 KBG-2-LS NT 6 11543 7964 49 KBG-2-LS NT 11609' H 4-112-HES XMP,D=3.81' 11620' -i 7"X 4-112'BAKER SB-3 PKR D=3.88' I 11635' -{ 4-12"HES X NP,D=3.81' 4-1/2-TBG,12.6#,L-80,-0152 bpf,D=3.958' H 1164€' ] - 11645' - 5"1.41—EG 11648' -i BAC TT LOGGED 12/12(97 I I_ TOP OF4-1/2"LNR 11$kr � ►� 11852' H BAKER ZXP P107!HGR PERFORATION SUMMARY REF LOG:VAS-BEICS/GR ON 11/24/97 ANGLE AT TOP FERE.47 @ 11665' I 11870' H 4-1/2"HES X NP,D=3.813" Note Refer to Roductbon DB for hestormal perf data SIZE SPF NTLRVAL Opn/Sgz 00.TE 3318" 6 11665-11775 0 11/17/00 • I 12403' H 3AND PLUG YMTH CEMENT CAP 33/8- 8 11775-11795 0 11/07/00 3-3/8" 6 12960-13010 C 08/12/00 1 12900' H 4-1/2-HES X NP,D=3.813- 2-7/8' 6 13150-13155 C 12/26/97 2-1/2' 4 13155-13165 C 12119/97 7'CSG,29#,L-80,D=6.184' 12906' 13024' 4-112"I XN NP.D=3 725' 1MXXN PLUG SET 01111/98 L PBTD J--I 13175' I ♦14 4/4 *044014f 4-1/2'LNFL 12.64,L-80,.0152 bpi,D=3.958- I-1 13277' iaaaaa DATE REV BY COMVENTS DATE REV BY COIJU4T5 MIDNIGHT SUN UNT 12/15/97 ORIGINAL COM3✓Ef1ON WR I• E-100 1026/00 SEM CONVERTED TO CANVAS f$*4T No: 1971880 01/10/01 S6-LG REVISION API No: 50-029-22819-00 10/04/01 RWTP CORWCTIONS SFC;6,T11 N,R14E 5000'NSE&500'WH. 04/08/03 DRIS/TP TVDIAOCOMECT1ONS 07/18/17 LAY.PAD CORRECTIONS TO SAND&CMT BP Exploration(Alaska) • • • TREE= caro 4 1/16' 5000 PSI A OR I.LI-E D= P ,11 ERP,/ PROPOSED -1 00 SAFETY NOTES: CEMENT CAP a 12370' --- G KB.B = 69' BF.9 W= KOP= 1107 I x Angie= 57"a 3950' 0 1 I 2242' '-I-4-12"HES,HXO SVLN ASSY,D=3.813" Datum M)= 11771' Datum TVD= 8050'SS 9-518"CSG,475,L-80,D=8.68r H 4441' --4 GAS LFT MANS ST M) TVD DEV TYPE VLV LATCH PORT DATE 1 3401 3073 47 KBG-2-LS INT Minimum ID=3.813"a2242' 4 11 ,, 2 5101 4079 53 KBG-2-LS M 3 6751 5069 52 KBG-2-LS 141 4-1/2" HES HXO SVLN ASSY 4 8441 6069 53 KSG-2-LS INT 5 10094 7067 52 Kl3G-2-LS INT 6 11543 7964 49 KBG-2-LS NT 1 I I 11609' I f 4-1/2'HES X NP,D=3.81" I 11620' I-1 7"X 4-12'BAKER SB-3 PKR,D=3 88" I I I 11636' 1- 4-112'HES X NP,D=3.81' I 14-1(2'TBG,12.64,L-80, 0152 bpi,D=3.958' i-1 11646' 11646' 5'ViLEG L 11648' i-I- ELND TT LOGGED 12112/97 I I TOP CF 4-12"LAP H 11852' >< 6 { 11852' I-{ BAKER ZXP PCR!HGR PERFORATION SIR,MARY REF LOG.SV -ice ON 11/24/97 I I H 11870' --I 4-112'HES X hP,D=3.813" ANG(F AT TOP PSIS 22"0 12960 Note Refer to Production DB for historical pelf dab SIZE SFF INTERVAL Opn/Sgz DATE 3-3/8" 6 11665-11775 5 / i 3-3/8' 8 11775-11795 S / i I I r1A2900' JR 4-112-HES XNP,113=3.813' I 3-3/r 6 12960-13010 0 00/12/00 ` 2-748' 8 13150-13155 0 12/26/97 2-1/2' 4 13155-13165 0 12/19/97 ('I I 1 13024" _1±-1/2"HES XN NP.D-3.725' 7-CSG,294,L-80,ID=6.184" ---I 12906' .. PBTDMEM4.r9RTt' •�•�4*4�i+11 4-12"L N2,12.64.1-80, 0152. bpi".D=3.958" 13277' ••••••• DATE REV BY COMMENTS DATE REV BY (011443,115 M 1'JGHT SUN UNIT 12/15/97 ORI3SIALCOMPLETION 07/19417 I 0/1141 p(,S,TF4 )1'1StI) WELL E-100 10/25/00 SS-lel COM/ -t1 Ell TO CANVAS PERMIT No 1971880 01/10/01 SIS-LG REVIS+ON An No. 50-029-22819-00 10/04/01 RNfTP ODR»TUNS SEC 6,T11N,R14E,5000 NSL&500'"Mi - 04/08/03 DRS/TP 1 D/M)CX C IENS V 07/18/17 LfiJEO CORRECTIONS TO SAND&CMT BP Eiiploration(Alaska) • • Kuparuk Minilog 9 Weil(s): E-100 aa.t, Project:POU_UVO1P 6O UNI:300202.2011100 X:663094.19 SPUD date:5997-10.2500100100 452 nt 0) Short nate:1.100 Y 51166100.93 Completion date:1097-12.20 000000 Scat.: 1:600 :.0np maw 000 LPA0 a NO 100(AMA Li ny6ud.=-5403165279 Statue: Cat.:3/30/2015 SA14.01) latitude:.70.342073 Overstay OPI(A Tata)depth: 13202 KlP_Set66tas&WORD CTI CPNL03_81 oo 1990 HRP GCMG CL55 G.(N0) N5fl avW ROM!.1.Lr.n PEVA s 141 V514 GR`CReL 100455 § _ RICCRO DR'NO •y au.K 1,000 POET 7000 4 na maw( tan ya If6T>13MEION - qr GfF_CPML. AOP ,. a3- o1'EO '4IL 1L91tiT CAIJC_GALco ... -' --- �*owe**-. dl ps ti ->QO 0110 500 N x..: 1m war O 0 WV O3 1 V/V 0 $ CAUIII C', at K WILD'. VMS CALC_$ASPME SWH KGEO50 r PRAT_CPNL S Ili 16 n: alrw .15 20I IS I VN 0_5 1 C. u.r ' lento 4 3 d. 19 el ... 0.6 1.6 MMM"' RI GR p, i ROSEP R-YJ9 PIM SWT i i lj 1 PPM[ PLNa3 00 stTiQf 0 GAPS 260 Z aaW 66 x.11 <'.i 161 0 V/V 0.5 1 V/V 0 ffi 0 PO 60 TXUD 1052... 7Y1R1 - ^,t �� - {i. y}Qj� TKCC _ ` l t .r } TKCJE -8000-11700 �. �. Y... `S�} a. TKG10 Kl� 62002 - - "" l -+era' - PeRF TKC3A s. TKCIC .� -�.:. ..-. je- F -8100" L i ,41900 NW �'1 TJ!6Y TM-V - - t,. { jjj} 8260- 1 1 11. -42000 4 F -8300-'4.2100 { IG 110 T1G -4 2200 -8400- - 1 ?IF JF tip - - 42300 • • • Sag & Ivishak Minilog Well(s): E-100 0.4,4 E ff Pmt esu UPOW W 1Mt:500292251600 X:063004.19 SPUD date:1997-10.25 0013400134300000 n 'ID Iand014 Shat name:1-100 Y:908610693 CarnMetkes data 1997-12-20 00:00100 Scale: I 600 tang nvns:13181.13A8 E NO 100(ASA. Lenp6uda:-t4&555275 Status' 70'e 3/30/2065 SAM-01) tattle:70.342878 Opwter:5YXA Total depth: 13282 K WSat.St.a 1101.310 CTI CPNLQT SNna 1998 HAP CQNG GCss Gas(MD) 31635 MAY WOW r TMran SNICA,AS iEbi t tore VS11 CR6 Tvoss Q8 _RfItlCR[f PHtT r 1391. SHALE a•aa GR_CPNL 12000 FEET 'OW » § . aww na .._.. OP $. Q EVAIJV$ 1415 CALCSALSW '+Ce_UTi_Pra� r 500 I vhf 500 ~ I ma .M n 0 V/V 0.5 1 V/V 0 g CAL[ C w ur VPSE CALL-StT.PHIE SWH 609060 C51h_CPST PKAT-CPNL "r't 4 6 IN. i{, § pE ta ag 03 I5 6 V/V 03 I Q1,. ' .�P 5 (1 . ii 0 " 2 0.6 " 1.0 . h GR 1.. D GAP! 250 i ,.,. ". .. 5-1D9 5 PVN 03 1 0 SWT CIRF_CRST P!H[ �.Sf3Ii_t1N 'r; l SS i r-TM TtA -9000 A 2904 3C y I 1V20 7 1300o- -9100- 9QQ � '' .. .. �.. .... TSHA TSd(A _ - .- TSHII TSH6 - 11 '. - t - 't TSH0 _ - TSA8 I ..r[ 1255 - T24A rt L 43100 dr- ice. • TZ3 _9200' ��_*-1,e.c, ±y TCG... TSTIC _ - ' "( -- r - T228 ADE_ S' tr SOGL j4,3200 1. s }aWc < - `9300 i _ A( , • • Loepp, Victoria T (DOA) From: Oshiro,Joleen <JOLEEN.OSHIRO@bp.com> Sent: Wednesday, February 14, 2018 4:37 PM To: Roby, David S (DOA) Cc: Loepp,Victoria T(DOA); Davies, Stephen F(DOA) Subject: RE:Sundry Application for Midnight Sun E-100(PTD 197-188) Follow Up Flag: Follow up Flag Status: Flagged Dear Mr. Roby, Thank you for taking the time to discuss the E-100 GOR waiver with us today. We would like to request that the E-100 GOR waiver be valid for one year(365 days) from the time that regular production is established. This one year time frame will allow us to acquire the pool and performance data necessary to determine an optimum reservoir management program from the Sag and Ivishak intervals,and it provides contingency for scheduling and operational issues. Please let us know if you need any more information from our end. Best Regards, Joleen Oshiro BP Alaska NWD PE G Pad Engineer Office:907-564-4606 Cell:650-483-4774 From: Roby, David S(DOA) [mailto:dave.roby@alaska.gov) Sent: Monday, February 12, 2018 5:49 PM To:Oshiro,Joleen<JOLEEN.OSHIRO@bp.com> Cc:Loepp,Victoria T(DOA)<victoria.loepp@alaska.gov>; Davies,Stephen F(DOA)<steve.davies@alaska.gov> Subject:Sundry Application for Midnight Sun E-100(PTD 197-188) Joleen, In reviewing the sundry for the subject well I note you're requesting a GOR waiver to gather production information about the Sag/Ivishak formation, but it does not say how long of a waiver BP is seeking. The sundry states that after an initial flow period of 30 days the well would be connected to a temporary flowback skid to conduct an extended test but does not say how long this extended test will need to be in order to make development decisions for this well. Please let me know how long of a waiver BP is requesting. Thank you, Dave Roby Sr. Reservoir Engineer Alaska Oil and Gas Conservation Commission (907) 793-1232 1 • s Loepp, Victoria T (DOA) From: Bredar,William L <William.Bredar@bp.com> Sent: Thursday, February 01, 2018 11:11 AM To: Roby, David S (DOA) Cc: Davies, Stephen F (DOA); Loepp,Victoria T(DOA) Subject: RE: E-100 Well Activity Planning Dave, Thanks for clarification. Don't see need for meeting now. We intend to file a supplemental explanation with the sundry that seeks an exception from the GOR limitations under 20 AAC 25.240(b)(3)along lines of"the recompletion well work will support an extended flow test to collect pool performance data to determine the optimum reservoir management program and may ultimately result in a request to expand the Prudhoe Oil Pool to cover this well". Regards, Bill Bill Bredar State of Alaska Interactions-Reservoirs; Surveillance Champion Alaska Region Performance Management Team BP Exploration (Alaska) Inc (907) 564-5348-office (907)227-7252-mobile From: Roby, David S(DOA) [mailto:dave.roby@alaska.gov] Sent:Thursday, December 21,2017 3:46 PM To: Bredar,William L<William.Bredar@bp.com> Cc: Davies,Stephen F(DOA)<steve.davies@alaska.gov>; Loepp,Victoria T(DOA)<victoria.loepp@alaska.gov> Subject: RE: E-100 Well Activity Planning Bill, I think you might be looking at an old version of the regs,or more likely looking at a pool rule that was written before the regs were rewritten,where what is now 240(b)used to be 240(c). Since the well is located outside the defined pool boundary you can't use(b)(1) but can use(b)(3)saying this test is being done to collect pool performance data, namely data showing it should be part of the existing pool and supporting a pool expansion to cover this well. Or,alternatively you can apply to expand the pool and AIO boundaries to cover this well,which would require notice and hearing, before bringing the well on production. If you still think a meeting is necessary it looks like our calendars are pretty open the 3rd and 4th weeks of January, except for on the Friday during the 3rd week. Regards, Dave Roby 1 • • (907) 793-1232 •CONFIDENTIALITY NOTICE:This e-mail message,including any attachments,contains information from the Alaska Oil and Gas Conservation Commission (AOGCC),State of Alaska and is for the sole use of the intended recipient(s).It may contain confidential and/or privileged information.The unauthorized review,use or disclosure of such information may violate state or federal law.If you are an unintended recipient of this e-mail,please delete it,without first saving or forwarding it,and,so that the AOGCC is aware of the mistake in sending it to you,contact Dave Roby at (907)793-1232 or dave.robv@alaska.gov. From: Bredar,William L[mailto:William.Bredar@bp.com] Sent:Thursday, December 21, 2017 3:31 PM To: Roby, David S(DOA)<dave.roby@alaska.gov> Subject: E-100 Well Activity Planning Hi Dave, In 1 or 2Q 2018 BP plans to recomplete the E-100 well in the Ivishak reservoir to test its oil potential via a long term test with a portable test separator probably followed by permanent tie-in. The well has most recently produced from the Kuparuk reservoir in the Midnight Sun Pool. The well is just outside the northern boundary of the Prudhoe Oil Pool. It is expected that the GOR from the Ivishak will quickly exceed 100 percent of original. We would like to get an exemption from 20 MC 25.240 but need some direction about which paragraph to submit under, i.e.c) 1 or c)3,as well as clarity on 'pool'and 'reservoir'definitions within the regulation. I think it would be most efficient to meet with you,Steve and Victoria in advance of submitting a sundry so it can be targeted properly and understood. Would you all have time in the third or fourth week of January for a"'1 hour long meeting? Regards, Bill Bill Bredar State of Alaska Interactions-Reservoirs; Surveillance Champion Alaska Region Performance Management Team BP Exploration (Alaska) Inc (907)564-5348-office (907)227-7252-mobile 2 • • 1 x o0 x 8 O NN MCF per Day MCF per Day co N O 0 O O N O O N O O,1 - N 40 10 O LI., ^ n ._.T._.a T. L ._.�_._._..__m m_____�.. Co00m 0 es1 LE) llo . 0 0 M N N ll 0 3 ,; > _� a v v v 0 3 .. d U a 0 oo t C p 0 — ..+ to _ co I I _ql .. o3 � il y 4 o c o I 0 0 0 1 € 9 N E a W a a a o0 0 F-1 .o Lu jr U U U N II, '. ' _..... CC Cr ro CL ZI a • N m N J C p r.71 Z _ I m N _ # 0 0 _ v Y W +, _o O ; co Z c CC r c �I 0 Z O c 0 0 U 1 „E . N _. Y w. = L 2 -0 0 ce O u E L ! m CL _. L . N • CO + 41 I:L C O 0s- L .4 ' j f < .i 1 t 1 i v Z O Q o --! o <410 N Q S( I N - C O 0ri'l N lift o � o O1 o `o: cn To o m r Nci ea v Z I c i '',O' _ , cn m ToO '' _ .-s > N a 4 Illi .. O 3 m' a ° Y 2 m J , , . J to _ a ._ ._ cm X '#i1 E E 7 7 0 W UU m 0. , i Iiht.I '.. 4,-01 co O O O O .-1 O O O O O� O O O .-1 O O O .-1 O C) _i O C) .-1 .--1 a i Aea aad siaiie8 Aea aad swans u 0 0 a ®F Tyf • THE STATE Alaska i dASKA Conservation Commission k. -_ -= 333 West Seventh Avenue GOVERNOR BILL WALKER Anchorage, Alaska 99501-3572 ® ' Q, Main: 907.279.1433 .AL ' ASFax: 907.276.7542 www.aogcc.alaska.gov February 22, 2018 Ms. Laurie Derrick E-Pad Petroleum Engineer BP Exploration(Alaska), Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612 RE: Docket Number: OTH-18-017 Request for a waiver of the gas oil ratio limitations of 20 AAC 25.240(a) for well Prudhoe Bay Unit E-100 (PTD 197-188) Dear Ms. Derrick: By letter received February 9, 2018, BP Exploration (Alaska), Inc. (BPXA) requested a waiver of the gas-oil ratio limitations in 20 AAC 25.240(a). By email received February 14, 2018, BPXA stated that it was requesting a waiver for a period of one year. The basis for the request is to allow long term testing of the Prudhoe Bay Unit E-100 well (PBU E- 100) (PTD 197-188) in the Sag River and Ivishak Formations to acquire reservoir performance data to help determine the potential for additional reservoir development. BPXA's request is granted under the conditions below. The PBU E-100, is completed as a water injector in the Midnight Sun Oil Pool, but is no longer needed since it was replaced by the PBU P1-122 well. The PBU P1-122 has the capability to inject miscible injectant,which the PBU E-100 lacked since there was no MI supplied to E-Pad. Since this well is no longer needed as a Midnight Sun injection well BPXA plans to recomplete the well to conduct an extended flow test in the Sag River and Ivishak Formations. The Prudhoe Oil Pool (POP) contains the Sag River and Ivishak formations and has an existing GOR waiver due to the ongoing enhanced recovery project in the POP, but the location of the PBU E-100 is outside the affected area of the POP. Since the PBU E-100 well is outside the POP boundary it is subject to statewide regulations and the GOR limitations of 20 AAC 25.240 apply to the proposed test of this well. BPXA plans to collect detailed well testing data and fluid samples over a period of 30 days. After completion of the 30-day testing period BPXA plans to connect the well to temporary production facilities and put it on regular production to collect longer term performance data. BPXA will make future development decisions, which may include expanding the POP to encompass this area, based on the results of the collected performance data. Because the GOR of the well might increase above the GOR limits during testing, BPXA has requested a GOR waiver while it collects reservoir performance data in order to determine future development plans for this area. Docket Number:OTH-1 07 • February 22,2018 Page 2 of 2 In accordance with 20 AAC 25.240(b)(3) BPXA's request is granted on the following conditions: 1) The PBU E-100 well must be tested in accordance with the PBU's well testing and allocation procedures and must tested at least twice per month while flowing. 2) The GOR waiver expires one year after the extended flow testing period commences. BPXA must notify the AOGCC when the extended flow testing period commences. 3) On a quarterly basis, the operator must submit copies of all well tests for the PBU E-100 well showing the GOR at the time of the test. 4) Prior to expiration of this GOR waiver the operator must meet with the AOGCC to discuss results during this test period and future development plans for this area. DONE at Anchorage, Alaska and dated February 22, 2018. idA,12.Q.----\.„— r Hollis S. French Daniel T. Seamount, Jr. Cathy . Foerster Chair, Commissioner Commissioner Commissioner RECONSIDERATION AND APPEAL NOTICE As provided in AS 31.05.080(a),within 20 days after written notice of the entry of this order or decision,or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for reconsideration of the matter determined by it. If the notice was mailed,then the period of time shall be 23 days. An application for reconsideration must set out the respect in which the order or decision is believed to be erroneous. The Commission shall grant or refuse the application for reconsideration in whole or in part within 10 days after it is filed. Failure to act on it within 10-days is a denial of reconsideration. If the Commission denies reconsideration,upon denial, this order or decision and the denial of reconsideration are FINAL and may be appealed to superior court. The appeal MUST be filed within 33 days after the date on which the Commission mails,OR 30 days if the Commission otherwise distributes,the order or decision denying reconsideration,UNLESS the denial is by inaction,in which case the appeal MUST be filed within 40 days after the date on which the application for reconsideration was filed. If the Commission grants an application for reconsideration,this order or decision does not become final. Rather,the order or decision on reconsideration will be the FINAL order or decision of the Commission, and it may be appealed to superior court. That appeal MUST be filed within 33 days after the date on which the Commission mails,OR 30 days if the Commission otherwise distributes,the order or decision on reconsideration. (this language was removed from the statute a few years ago) In computing a period of time above,the date of the event or default after which the designated period begins to run is not included in the period;the last day of the period is included,unless it falls on a weekend or state holiday, in which event the period runs until 5:00 p.m.on the next day that does not fall on a weekend or state holiday. • • OF/T,tt s THE STATE Alaska Oil and Gas ,;- � ofA Conservation Commission z _ LAsKA. 333 West Seventh Avenue GOVERNOR BILL WALKER Anchorage, Alaska 99501-3572 Main: 907.279.1433 ®F ALAS' Fax: 907.276.7542 www.aogcc alaska.gov February 22, 2018 Ms. Laurie Derrick E-Pad Petroleum Engineer k BP Exploration(Alaska), Inc. ' "` l P.O. Box 196612 Anchorage, Alaska 99519-6612 RE: Docket Number: OTH-18-017 Request for a waiver of the gas oil ratio limitations of 20 AAC 25.240(a) for well Prudhoe Bay Unit E-100 (PTD 197-188) Dear Ms. Derrick: By letter received February 9, 2018, BP Exploration (Alaska), Inc. (BPXA) requested a waiver of the gas-oil ratio limitations in 20 AAC 25.240(a). By email received February 14, 2018, BPXA stated that it was requesting a waiver for a period of one year. The basis for the request is to allow long term testing of the Prudhoe Bay Unit E-100 well (PBU E- 100) (PTD 197-188) in the Sag River and Ivishak Formations to acquire reservoir performance data to help determine the potential for additional reservoir development. BPXA's request is granted under the conditions below. The PBU E-100, is completed as a water injector in the Midnight Sun Oil Pool, but is no longer needed since it was replaced by the PBU P1-122 well. The PBU P1-122 has the capability to inject miscible injectant, which the PBU E-100 lacked since there was no MI supplied to E-Pad. Since this well is no longer needed as a Midnight Sun injection well BPXA plans to recomplete the well to conduct an extended flow test in the Sag River and Ivishak Formations. The Prudhoe Oil Pool (POP) contains the Sag River and Ivishak formations and has an existing GOR waiver due to the ongoing enhanced recovery project in the POP, but the location of the PBU E-100 is outside the affected area of the POP. Since the PBU E-100 well is outside the POP boundary it is subject to statewide regulations and the GOR limitations of 20 AAC 25.240 apply to the proposed test of this well. BPXA plans to collect detailed well testing data and fluid samples over a period of 30 days. After completion of the 30-day testing period BPXA plans to connect the well to temporary production facilities and put it on regular production to collect longer term performance data. BPXA will make future development decisions, which may include expanding the POP to encompass this area, based on the results of the collected performance data. Because the GOR of the well might increase above the GOR limits during testing, BPXA has requested a GOR waiver while it collects reservoir performance data in order to determine future development plans for this area. • • Docket Number: OTH-18-017 February 22,2018 Page 2 of 2 In accordance with 20 AAC 25.240(b)(3) BPXA's request isgranted on the following q conditions: 1) The PBU E-100 well must be tested in accordance with the PBU's well testing and allocation procedures and must tested at least twice per month while flowing. 2) The GOR waiver expires one year after the extended flow testing period commences. BPXA must notify the AOGCC when the extended flow testing period commences. 3) On a quarterly basis, the operator must submit copies of all well tests for the PBU E-100 well showing the GOR at the time of the test. 4) Prior to expiration of this GOR waiver the operator must meet with the AOGCC to discuss results during this test period and future development plans for this area. DONE at Anchorage, Alaska and dated February 22, 2018. (11§2...Q.---%\---- 9 ./ Hollis S. French Daniel T. Seamount, Jr. Cathy . Foerster Chair, Commissioner Commissioner Commissioner RECONSIDERATION AND APPEAL NOTICE As provided in AS 31.05.080(a),within 20 days after written notice of the entry of this order or decision,or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for reconsideration of the matter determined by it. If the notice was mailed,then the period of time shall be 23 days. An application for reconsideration must set out the respect in which the order or decision is believed to be erroneous. The Commission shall grant or refuse the application for reconsideration in whole or in part within 10 days after it is filed. Failure to act on it within 10-days is a denial of reconsideration. If the Commission denies reconsideration,upon denial,this order or decision and the denial of reconsideration are FINAL and may be appealed to superior court. The appeal MUST be filed within 33 days after the date on which the Commission mails,OR 30 days if the Commission otherwise distributes,the order or decision denying reconsideration,UNLESS the denial is by inaction,in which case the appeal MUST be filed within 40 days after the date on which the application for reconsideration was filed. If the Commission grants an application for reconsideration,this order or decision does not become final. Rather,the order or decision on reconsideration will be the FINAL order or decision of the Commission, and it may be appealed to superior court. That appeal MUST be filed within 33 days after the date on which the Commission mails,OR 30 days if the Commission otherwise distributes,the order or decision on reconsideration. (this language was removed from the statute a few years ago) In computing a period of time above,the date of the event or default after which the designated period begins to run is not included in the period;the last day of the period is included,unless it falls on a weekend or state holiday, in which event the period runs until 5:00 p.m.on the next day that does not fall on a weekend or state holiday. STATE OF ALASKA i,' t'', .', '.!''i,.:::'i Y: t: . • ALASKA OIL AND GAS CONSERVATION COMMIlt APPLICATION FOR SUNDRY APPROVALS "I"'' 4 20 4Vkir 25.280 r ii-11, 1. Type of Request: Abandon 0 Plug Perforations ifrFlriaTerre Stimulate 0 Repair Well El Operfionkshylq ,_13, ',- --‘ Z°-' ,. , . Suspend 0 Perforate 1:1 Other Stimulate 0 Pull Tubing 0 Change ft•blmi ',•* a0116 Plug for Redrill 0 Perforate New Pool 0 Re-enter Susp Well 0 After Casing 0 Other Inj=>Prod Convert 121" 2. Operator Name: BP Exploration(Alaska),Inc 4. Current Well Class: 5. Permit to Drill Number 197.188 3, 0 Address: P.O.Box 196612 Anchorage,AK Exploratory 0 Development ,.., 6. API Number 50-029-22819-00-00 99519-6612 Stratigraphic 0 Service 7. lf perforating: 452 8. Well Name and Number: What Regulation or Conservation Order governs well spacing in this pool? Will planned perforations require a spacing exception? Yes FZ1 No 0 MSUN E-100 ° 9. Property Designation(Lease Number): 10. Field/Pools: ADL 0028299 - PRUDHOE BAY.MIDNIGHT SUN OIL - 11. PRESENT WELL CONDITION SUMMARY Total Depth MD(ft): Total Depth TVD(10: Effective Depth MD: Effective Depth TVD: MPSP(psi): Plugs(MD): Junk(MD): 13282 ' 9423 ' 11846 8172 Casing Length Size MD TVD Burst Collapse Structural Conductor 80 20" 43-123 43-123 1490 470 Surface 4406 9-5/8" 43-4448 43-3694 . 6870 4760 Intermediate 12874 7" 40-12914 40-9079 8160 7020 Production Liner 1382 4-1/2" 11845-13227 8171-9371 8430 7500 Perforation Depth MD(ft): Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): 11665-11795 8045-8136 4-1/2"12.6# 1-80 38-11653 Packers and SSSV Type: TX 4-1/2"Baker SABL-3 Packer Packers and SSSV MD(ft)and ND(ft): 11620/8015 No SSSV Installed , No SSSV Installed 12.Attachments: Proposal Summary IO Wellbore Schematic Ed 13.Well Class after proposed work: Detailed Operations Program 1Z1 BOP Sketch 0 Exploratory 0 Stratigraphic 0 Development lid Service 0 14.Estimated Date for Commencing Operations: February 22,2018 15. Well Status after proposed work: Oil ET WINJ 0 WDSPL 0 Suspended 0 16.Verbal Approval: Date: GAS 6 WAG 0 GSTOR 0 SPLUG 0 Commission Representative: GINJ 0 Op Shutdown 0 Abandoned 0 17.I hereby certify that the foregoing is true and the procedure approved herein will not Contact Name: Oshiro,Joleen be deviated from without prior written approval. Contact Email: JOLEEN.OSHIROriibp.com Authorized Name: Oshiro,Joleen Contact Phone: +1 907 564 4606 Authorized Title: G Pad Engineer/New Wells Delivery PE(GCl/FS3/GC3 Authorized Signature: 0401-..._- ,,GA.4_ Date: -L/ / q COMMISSION USE ONLY Conditions of approval:Notify Commission so that a representative may witness Sundry Number: Plug Integrity Integrity 0 BOP Test 0 Mechanical Integrity Test 0 Location Clearance 0 Other Post Initial Injection MIT Req'd? Yes 0 No 0 Spacing Exception Required? Yes 0 No lii/ Subsequent Form Required: APPROVED BYTHE Approved by: COMMISSIONER COMMISSION Date: ORIGINAL t.,„...m", it Formand Form 10-403 Revised 04/2017 Approved application is valid for 12 months from the date of approval. Attachmentsin Duplicate • • kr vi 4 Alaska Oil and Gas Conservation Commission 3333 West Seventh Avenue Anchorage, AK 99501-3572 RE: BP Exploration (Alaska), Inc. Application for Sundry Approval (10-403) February 9, 2018 To Whom it May Concern: Attached please find the Sundry Application for Conversion from Injection to Production for well MSUN E-100, PTD #197-188. Sincerely, BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Attachments: Supplement To 10-403 Proposal Summary Form 10-403 Current Wellbore Schematic Detailed Statement of Requirements Proposed Wellbore Schematic Mini-log • • I,'. Supplement to 10-403 Well MSUN E-100 BP is submitting the attached Sundry for well work to convert the injection well E-100(API#50-029- 22819-00) in the Midnight Sun Oil Pool into a production well located in the Ivishak Formation in lease ADL028299.The Ivishak penetration of E-100 is located outside the defined Prudhoe Bay Oil Pool boundary. The recompletion well work will support an extended flow test to collect pool performance data to determine the optimum reservoir management program and may ultimately result in a request to expand the Prudhoe Oil Pool to cover this well. • An exception from the Gas-oil ratio limitations under 20 AAC 25.240(b)(3) is requested. The Summary steps for the intervention are as follows: 1) Well integrity screening to confirm well is fit for service as a gas lifted producer. 2) Coil tubing fill clean out, injectivity test and cement squeeze to permanently isolate the Midnight Sun Injection perforations. 3) Coiled tubing fill clean out to remove the cement cap and sand plug currently in the well isolating the Sag River and Ivishak perforations. 4) Flow the well through a portable test separator for 30 days to collect detailed well test data to understand performance. During this time,a downhole shut-in tool will be used to collect a pressure build up on the Ivishak perforations and an independent static bottom hole pressure survey will be performed on the Sag perforations. Isolated and commingled fluid samples will be collected on the Sag River and Ivishak perforations. 5) A scale inhibition treatment will be pumped to prevent scaling during the production period. 6) After 30 days of detailed well testing,a temporary flowback skid will be used to extend the production test to collect longer term data on water cut and GOR trends. If the production trends during the test period change by>10,000 scf/bbl GOR or the WC increased by>10%a production log or flow splits by difference will be performed. The detailed Statement of Requirements,Current Wellbore Schematic, Proposed wellbore schematic and Mini-log are attached for your information. Sincerely, Laurie Derrick E-pad Petroleum Engineer BP Exploration,Alaska TREE= 1/16",5000 FSI VVELLt SAD FMC,11 SAFETY NOTES: CB(BJT CLOS @ 12370° ACT!.IATOR= BAKER E-100 KB.E LEV= 69' I BF.ELEV= KOP= 1100' Max Angle- 57 @ 3950' I 2242' I- 4-1/2'HES,FRO SV LN ASSY,D=3.813' Datum MD= 11771' j 0 ' Datum ND= 8050'SS 9-5/8'CSG,47#,L-80,D=8.681' —I 4441° GAS LFT MANDRELS ST MD ND OEV TYPE VLV LATCH FORT DATE 1 3401 3073 47 KBG-2-L5 IIT Minimum 3.813" 2242' 2 5101 4079 53 KBG-2-LS INT -1/2" HES NX® SVLN ASSY 3 6751 5069 52 KBG-2-LS IIT 4 8441 6069 53 KBG-2-LS IIT 5 10094 7067 52 KBG-2-LS IIT 6 11543 7964 49 KBG-2-LS IIT I 11609' H 4-1/2"HES X NIP,ID=3.81" 133 ► 11620' H 7"X 4-1/2"BAKER SB-3 PKR,D=3.88" { 11635' -I4-1/2'HES X NIP,0=3.81- 14-1/2"TBG,12.6#,L-80,.0152 bpf,ID=3.958" I— 11646' 11645' H 5"WLEG I I 11648' F-f ELMD TT LOGGED 12/12/97 I TOP OF 4-1/ "LNR H 11852' NM iir- 11852' I—I BAKER ZXP PKR/HGR PERFORATION SUMMARY REF LOG:SLAVS-BICS,GR ON 11/24/97 ANGLE AT TOP PERF:47 @ 11665' I 11870' I- 4-1/2"HES X NP,ID=3.813" Note:Refer to Production DB for historical perf data SIZE SPF M13NAL Opn/Sgz DATE 3-3/8" 6 11665-11775 O 11/17/00 17171717171 I 12403' H SAND PLUG WITH C13VIENTT CAP I 3-3/8" 8 11775- 11795 0 11/07/00 3-3/8" 6 12960- 13010 C 08/12/00 I 2-7/8" 6 13150-13155 C 12/26/97 , 12900`_ I 4-112"HES X NIP,ID=3.813' 2-1/2" 4 13155- 13165 C 12/19/97 7"CSG,23#,L-so,ID=6_184' H{ 12906' 13024' -4-1/2"HES XN NIP,ID=3.725" W/XXN PJJG SET 01/11/98 I P31DH 13175' I 144.4• 14-1/2"LNR 12.6#,L-80,.0152 bpf, 3.958' I.-1 13277' ai+aAAA. DATE REV BY COMMENTS DATE REV BY CONVENTS MIDNIGHT SUN UNI 12/15/97 ORIGINAL COMF'LEflON 10/25/00 SIS-Isl CONVERTEDCANVAS CAVAS WEU: 1E-100 971 01/10/01 SIS-LG REVISION No: 1971880 10104/01 RNfTP O API No: 50-029-22819-00 04/08/03 DRSRP TVD/MD CORRECTIONS SEC 6,T11N,R141;5000'NSL&500'VIII 07/18/17 LM/JM) OGRRECTIONS TO SAND&CMT BP Exploration(Alaska) • . • S ALASKA WELL ACTIVITY STATEMENT OF REQUIREMENTS (V2.0,DBR,LHD,EAZ,BPG 10/12/15) General Information Well Name: E-100 Well Type: Water Injection Well API Number: 50-029-22819-00 Well Activity Conventional 3 Classification: Activity Description: Producer Conversion Cost Code/AFE: APBINJEC Field/Reservoir: MIDNIGHT SUN 12 Month Avg IOR, 486 bopd: Job Type: Prod Cony Estimated Cost, $615 $K: AWGRS Job Scope: PROFILE MODIFICATION Other regulatory DNR Tract Operations requirements? Sundry Form 10-403 Required? Yes Sundry Form 10-404 Required? YesPrimary Secondary Engineer: Laurie Derrick Contact numbers: (907)564-5952 (720)308-3386 Well Intervention Engineer: Michael Hazen Contact numbers: (907)268-9279 Lead Engineer: Laurie Derrick Contact numbers: (907)564-5952 (720)308-3386 Date Created: July 25,2017 Revisions(date,who,what changed): 1/15/18-L Derrick-Update 8 Review Current Well Status Information Water Rate or Gas Rate or Oil Rate Inj Rate Gas Injection GOR Gas Lift Rate FTP or Injection Date Choke Setting (Mscf/Day) Pressure (bopd) (bwpd)Water Rate (scf/stbo) Cut(%) (Mscf/Day) (psi) 5/3/2017 8,510 1,839 Current Status: Operable Flowing Inclination>70°at Depth(ft) NA Recent H2S (date, ppm) 11/1/1998 5 ppm Maximum Deviation(Angle and Depth) 57° 3,950'MD Datum depth,ft TVDss 8,050'TVDss Dogleg Severity(Angle and Depth) 50 12,000'MD Reservoir pressure(date, psig) 8/6/2017 3,834 psi Minimum ID and Depth 3.725" 13024' Reservoir Temp,F 1380 F Shut-in Wellhead Pressure 200 psi Known mech.integrity problems(specifics) None Last downhole operation(date,operation) 8/12/2016 SBHP Most recent TD tag(date,depth, toolstring OD) 8/12/2016 11780'elmd 2 5"Sample bailer Surface Kit Fit-for-Service? YES If No Wh If well has been shut in for> 1 year or job cost>$500M, fill out Non Rig ' y' Surface Equipment Checklist. • • • Comments,well history, History background information, E-100 was drilled in 1997 to appraise a number of hydrocarbon accumulations north of the main Prudhoe etc: Bay field. The well penetrated reservoir quality, hydrocarbon bearing Kuparuk, Sag River and Ivishak Sands. It also passed through hydrocarbon bearing Sierra Nevada sands, but they were deemed to be low reservoir quality. E-100 was initially perforated in the Ivishak sands.A flow test and pressure build up were conducted in the Ivishak from 12/20/97-2/7/98. The Ivishak perfs tested at-1000-2000 bopd, 9-16%WC, 500-1300 scf/bbl GOR at 500-psi WHP The Ivishak pressure was-3677-psi, which aligns with the regional pressure on E- pad at the time of the test. It is believed that Sambucca is in pressure communication with the main Prudhoe field via the aquifer so the reservoir pressure could be as low as 3300-psi in the Ivishak perforations. On 1/11/98, a XXN plug was set in the nipple at 13025'md and the Kuparuk sands were perforated and flow tested from 1/20/98-2/7/98. The Kuparuk interval tested at 3900 bopd.0%WC, 387 scf/bbl GOR at 650-psi WHP so it was developed as the primary target. In September,2000, the Sag River sands were perforated and flow tested while commingled downhole with the Kuparuk interval. During the test, a PPROF was run,which confirmed the Sag interval was producing in the gas phase. During the commingled test,the well was making 2850 bopd, 0%WC, 12.4 mscfd F gas, 4450 scf/bbl GOR. Following the Sag flow test,6200 lbs of river sand and a 1/2 bbl glass G cement cap were placed on the XXN plug to isolate the Sag and allow injection into the Kuparuk sands. E-100 was converted to injection in the Kuparuk sands and has operated as a PWI since 10/2000. E-100 was recently replaced in the Kuparuk/Midnight Sun reservoir by the new injector P1-122 E-pad does not have a MI supply line, so P1-122 was drilled from Point Mac 1 pad to allow MI flooding in the Midnight Sun. The well replaced the E-100 BHL in Midnight Sun and has been on injection since October,2016. Sambuca Flow Test Since E-100 is no longer needed to provide injection into the Midnight Sun/Kuparuk interval,the well is available for use as a development well in the Sambucallvishak interval. The purpose of this SOR is to perform a profile modification to isolate the Kuparuk perfs and collect an extended flow test on the Ivishak and Sag river perforations Since E-100 has operated as an injection well,there are no surface production flowlines. E-100 will be produced through a portable test unit tied into a neighboring producer flowline(E-34 and E-31 suggested). E-100 has an integral flange that can be used for separator rig-up. Use of a temporary choke skid to allow production for an extended period up to 120 days is included. E-100 will need gas lift to facilitate the FCO and production from the Ivishak perforations if production with the Sag is not commingled E-pad does not have clean gas lift supply lines so DPBGL will be sourced from neighboring well, E-10. Well Integrity and Recent Drifts 8/12/16:Tag 11780'elmd with 2.5"SB (sample of schmoo) 7/16: PPPOT-T passed, MIT-IA to 2500-psi passed Note: TIOs show some trending between IA and OA. Likely thermal expansion due to fluid packed annuli, but could be a potential problem. PPPOT-IC requested to confirm. Well Intervention Details Please contact the SOR author if 1 There is a change in work scope to the approved SOR 2.For well work $100M estimated total cost, as soon as rt is reasonably anticipated that the actual cost wit exceed the estimated cost by 20% Suspected Well Problem: Reservoir zone not open • • Specific Intervention or Well Objectives: 1 Confirm E-100 integrity for gas lifted service. Collect tubing caliper. Perform PPPOT-T&PPPOT-IC, MIT-IA. Permanently Isolate the KuparukiMidnight Sun injection perforations at 11665-11795'md (consider use of sqzcrete or 2 microfine cement).A bottom hole pressure via surface pressure fall off was collected during the 2017 GC1 TAR and was 3834-psi at 8050'ss MNS datum. 3 Regain access to the Sag and Ivishak perforations—perform FCO to plug at 13024'md. Pull XXN plug from 13024'md. FCC below plug to ensure Ivishak perforations are accessible. 4 Evaluate Sag only production.Collect Sag only welltests and test separator fluid samples to confirm production rate, GOR, oil API gravity, and gas C1/C3 to estimate yield 5 Collect Ivishak only PBU with DHSIT set at 13024' and to confirm Ivishak reservoir pressure and attempt to identify any barriers/baffles that limit the size of the Ivishak fault block. Flow Sag perforations during Ivishak PBU. 6 Collect Sag only SBHP prior to pulling DHSIT to confirm Sag reservoir pressure and determine whether Sag/Ivishak are in communication. 7 Perform extended flow test of commingled Sag/Ivishak for as long as AOGCC approval is valid. Use portable TS for extended flow test up to 30 days. Use Temporary flowback skid for the extended test to achieve extended production. Collect production splits by difference by setting a plug at 13024'md at the beginning of the extended flow test.Collect repeat 8 production splits by difference following any major production change(GOR increase> 10,000 scf/bbl,WC increase>10%). Collect final production splits by difference one week prior to the end of the extended flow test. Pump SIT for commingled Ivishak and Sag formation following Initial flow test and DHSIT/PBU period. SIT should be 9 pumped within 1 week of the beginning of the sustained commingled flow period(after all surveillance activities are complete). Key risks,critical issues: Mitigation plan: Well has been operating as an Injector since 11/2000.Well has MIT-IA to 2500-psi and PPPOT-T passed 7/2016. Perform 1 never been subjected to gas lifting operations. Tubing integrity MIT-IA&PPPOT-IC prior to intervention. Include caliper of unknown. PPPOT-IC integrity unknown. 4.5"tubing as part of this intervention. Kuparuk perfs occluded by Schmoo causing poor squeeze or Perform SBG/FCO prior to sqz. Perform contingency 2 Kuparuk squeeze breaks down causing rapidly increasing water squeeze if post sqz pressure test fails. cut Future option to run a mechanical assembly(QCLL)across Kuparuk if sqz breaks down. Follow FCO RP. Set GL design and use DPBGL from E-10 Unable to re-access Sag and Ivishak perforations. FCO fails during FCO to ensure fill is being lifted from wellbore. Note: 3 and/or XXN plug is stuck in nipple at 13024'md. Dmy GLVs were set in 1998 and 2000-may be stuck. Plan fish plug with coil to ensure retrieval and minimize rig- ups. If very stuck, consider spot acid on plug to loosen. Accept the lack of PBU data. Collect Ivishak only SBHP by 4 Ivishak PBU is compromised due to DHSIT failure. setting a plug with memory gauges hung below it in nipple at 13024'md. Commingled production trends are complicated making it Perform PPROF near the beginning and the end of the flow 5 difficult to understand the GOR/WC trends in the Sag vs. the test period. PPROFs can be performed by setting a plug at Ivishak. 13024'md to collect Sag only production data and update zonal splits by difference. • • Isolate Sag perforations with a straddle patch designed to 6 Sag perforations are uncompetitive(HGOR) allow insitu gas lift from the Sag If needed, patch procedure will be submitted in a separate SOR. Ivishak perforations experience scaling during extended flow Pump SIT within one week of extended flow test start. test. E-100 is three wells south of E-07A on the main row of E- 8 Simops with Sidetrack E-07A. On the CDR2 drilling schedule pad. E-pad has tight clearance and it may not be feasible to for April/May 2018 perform this intervention while drilling is working on E-07A. Consider simops in scheduling. Summary Service Line Step# Activity 1 DHD PPPOT-T, PPPOT-IC, MIT-IA 2 S D&T, Tubing caliper 3 C Drift, FCO, SBG treatment, Injectivity test, cement squeeze 4 F WOC 72 hours, MIT-T to confirm sqz worked 5 S Install LGLVs, RU DPBGL from E-10 6 C Mill cement, FCO sand plug, Pull XXN plug, FCO to TD 7 T Assist coil with FCO Testers will stay rigged up from this point forward_ 8 S D&T, Set DHSIT at 13024'md. 9 T POP well. Produce for 8 days Collect continuous 12 hour WTs during this period. SI well for 10 days Testers can rig down at this time, but will need to be back to POP well in 10 days. 10 DHD Shoot tubing FL when well is SI. 11 F FP well for Sag only SBHP build-up period. 12 S After 18 days (3 day commingled flow, 5 day Sag only flow, 10 Day SI) Drift, perform Sag SBHP, Retrieve DHSIT. 13 T POP well. Flow commingled for 20 days Collect continuous well tests. 14 F Within 1 week of sustained commingled production, pump SIT. 15 S Contingent: Production splits by difference If GOR increases>10,000 scf/bbl or WC increases>10% SL set plug at 13024'md to isolate the Ivishak. Collect Sag only production test to confirm splits. 16 T Use Temporary flowback skid to extend flow period until permanent WTI is complete. Detailed work scope(If no RP/SOP exists for the intervention type,a well-specific procedure is required in addition to the SOR): See detailed procedure attached to the SOR. Performance Expectations(may be NA if no change anticipated due to the intervention) Expected Production BOPD: 2000 MMSCFD: 12 BWPD: 250 Rates: FTP(psi): 400 Choke setting: 96 PI(bfpol psi dp) Post job POP instructions: POP well to portable test separator. Use DPBGL as needed from E-10. Flow down E-31/E-14 production line. • • • TICE= 1116",5000 PSI AWB LHEAD= FMCS 3 3 .. ®� SAFETY NOTES: CEMENT CAP @ 12370' !ACTUATOR TOR= BAKER €gKB.11.V= 6 4BF.E_EV= KOP= 110(1' Max Angle= 57 Q 3950' 0 I 2242• - 4-1/2"HES,HXO SYLN ASSY,D=3.813" 1 Datum ND- 11771' Datum ND= 8050"ss 9-58'CSG,474,L-80,D=8.681' H 4441' .1--.-4 GAS LFT MANDRELS ST M) TVD DEV TYPE VLV LATCH FORT 1147E r 1 3401 3073 47 KBG2-L5 M Minwntlm ID=3_$13"@ 2242' i 2 5101 4079 53 KBG-2-LS NT 14-112" HES HXO SVLN ASSY 3 6751 5069 52 KBG2-LS M 4 8441 60069 53 KBG2-LS M 5 10094 7067 52 KBG2-LS M 6 11543 7964 49 KBG2-LS INT I I I {---116O9' --r 4-12'NEB XMP,D=3.81- g } }---- F-11820' --I 7'X 4-1/2"BAKER SB-3 PKR,ID=3.88.1 I I 11635' —I-4-12'HES X NIP,D=3.81" I 14-1/2"TBG,12.6#,L-80,.0152 bp!,8)=3.958" H 11646' j--------- 11645 H 5-WLEG r L:11648' H ELMO TT LOGGED 12/12/97 L TOP OF 4-1/2"LNR H 11862' _ . "\-----1 11862' HI BAKERZXPPKT?/HC,R -I PERFORATION s&ia i4RY REF LOG:SWS.BEDS/6R ON 11/24/97 ANGLE AT TOP F$3F_47 4/11665' I I I 11870' I—I 4-112'HES X NP,ID=3-813" I Note:Refer to Roductiora DB for historical pert data SIZE pry INTERVAL U_pn/S9a OATS 3 3/8' 6 11665-11775 O 11/17/00 12403' H 3Af D PLua.VV111 t CB rr CAF I 3-3/8' 8 11775-11795 O 11/07/00 3-3/8' 6 12960-13010 C 08/12/00 I 1 Ilk J-I 4-1/2'HES X NP,ID=3.813' 2-7/8" 6 13150-13155 C 12126/97 2-112" 4 13155-13165 C 12/19197 I 7"CSG,29#,L-80,ID=6.164' --I 12906' 11 ...-130-1=4' 4-12'IES XN MRD=3.725" W/XXN PLUG SET 01/11198 4-1/2' P �- 18175' iQ� 1LMZ D=12.6#,L-80,.0152 bpt, 3.95858'' - , -r •132T7' P�- ------ 1 DATE I REV BY COM NTS DATE REV BY COMMENTS M fr SUN 1847 12115/97 ORIGINAL Cf3M1_ETION WELL: E-100 10x'6/00 616 bi CONVERTED TO CAIWAS 01/10101. SIS-LG REVISION 1' TT No: 1971880 ...10104/01 1 RPYTP CORRECTIONS SECAil Pb: 50-029-22819-00 04/08/03 CRStrp TV11'M)(X CT1p�LS _ 6.711 N,R14E 5000'NSL&500'VUI3 01/18/17 1 LNYJM) ODRREC7ONS 10 SAND 8 C2'41 BP Exploration(Alaska) • i IMRE= CNV41/16",5000PSI M2LFEAD= FMC,11 PROPOSED E-100 SAFETY NOTES: CEMENT CAP G.12370' ACTUATOR= BAKER • KR B_PI= 69' BE.ELEV= KOP= 1100' AA1x Angfe; 57"0 3950' t'1 V 2242' 4-IJ2'HES,HXO SVLNASSY,D=3.813' Datum M7= 11771' Datum TVD= 8050'SS 9-5/8'CSG,47#,L-80,D=0.6,81. H 441V GAS LIFT MAPDI2l3S ST LD ND DEV TYPE VLV LATCH FORT DATE 1 3401 3073 47 KBG-2-LS M Minimum ID=3.813" 2242 2 5101 4079 53 KBG2-LS P1 3 6751 5069 52 KBG-2-LS PR 4-1/2" HES HXO SVLN ASSY 4 8441 6069 53 KBG-2-LS INT 5 10094 7067 52 KBG-2-LS M 6 11543 7964 49 KBC-2-LS NT I 11609' 4-112'HES X PIP,ID=3.81' 11620' 11 7'X 4-112'BAKE S13-3 PKR,D=3.88" l I 11635' - 4-112'HES X14P,ID=3.81" y 4-1@'TBG,12.6#,L-80.-0152 bpi,D=3.958' ' i 11646' - - 111=3111 5.WL£G p L 1164—in-1- ELMO TT LOGGED 12112,97 ! TOP 0=4-112"LNR _—I 11852' -" ?. 1a. 11$52' -I--- BAKER ZXP ROW MGR PM{-ORATION S11.IAARY RIF LOG.SWS-5.-1 SI ON 11/24/07 1 11870' — 4-1/7 HES X NIP,0=3.813' ANGLE AT TOP FE F:22'4 12960' Note:R fer to Production DB for historical port data SIZE ' SFF k INTERVAL Opn/Sqz GATE 3-3/8' 6 ' 11665-11775 S / i i 3-318"i 8 i 11775-11795 S __/_i12900' 4-1J2'FES X NP,®=3.873' 3-3/8' 6 12960-13010 0 08/12/00 ' 2-7/8' 6 13150-13155 O 12/26197 __ 2-112" 4 13155-13165 0 12/19/97 _ s t I li 1 13024',-j-14-1(2"HES XN MP,D s 3.725" I I 7'CSG,28//,L-80,ID=5.184- H 12906' PBTD —I 13175' I ♦•♦ 1 ('44144144.4/ i..4-1/2"LNR 12 611,L-80,.0152 bpf,D=3.9558" —i 13277' -- • a • I/ATE REV BY COLINENTS DATE REV BY CONVENTS MENIGH1 SDN WIT 12/15/97 ORIGINAL COM'LEr1rN i,uureti7 1_63 WL." 536. (PirOPOSED WaL: E-100 10/25/00 StS-161 CONV±tt w TO CANVAS 1 F13viT No:'1971880 01/10/01 SIS-1...0 REVIS4OPI AR No:50029 22819-00 10/04/01 RPYTP CORRECTIONS SEC 6,T71fy R14E 5000'ISL&500'WEL 04/08103 ORSITP TVI>✓RIDCORRECTDfS I 07/18/17 LfWJh43 CORRECTIONS TO SAND&MKT BP Exploration(Alaska' • • Kuparuk Minilog WeNs): E-SQ® <7) 9+ala.-i:rW^IM013%•410 lm1(3:50020221190° X!663094.30 SKID date:1997-10-250Rc00:00 ( 1a:.An°) Short mans:E-100 Y:600530593 ComImiscon bade:1607-12-211 Dat 041-130 SctBC::1:600 long near:V493L1PA6 E NO 100(ARA 1.04404.4404:.1 45 865 2 7 9 Stipa: Dare:5/36/2615 SAM-01) LT111.0a,70.342575 OpeeraM^AIWA rota Wpehr:13297 gAS®is1200 a WURD CPS CPNLC3_11NImr1998 tar [ONG Ras G.(W D) NCTS OVW w0d®a oars, SANOPUG seal..0.0 VS0 i GR,p NDSS _R.+tCRd 0415>-1296 I E 440,4.4- ,. -..:LCe PfgL 7)JJ n.l mrarr.'e77 .;, Gam= Y E SOP DI� tel, iff�.: �nlr Oil' OS K c�0 Y•,h ss) C" Ow tap . 0 WV 05 3 v/V D - gra y' CAU e. i k31 AIMS CA4_.,SUT_Pn7E sw 1 b R1 .:_;;IiE.0 1 PRAT_CPNI 'tr B oll 19 16 $ '�1 ,,.. ,*.S a. 46 N 1.i, C WV C3 1 n ar • 0.= qA 6: 2 0.6 " 1-6 GR r$ pp - ifs CL',=E? p .^-.J P.01 SWT q�(lr �$] $ C:isF-CAS? PFNI«ALHB3 -i M. o o f 250 Y ';' r, i;lwfr a a.v: O WV BS 3 WV 0 i S irGi C.3 " 1.3 0 IVa 6N J . r, • Mi li rKuo _ ^ " ! 4 y RI i4 z i 4-� � u41u,� luil. . -tr--- (j DLitt -atop-41700• �- l i l a ir� ! +� r• E o 1.6 c Rm -.1Kt30 .10' emit -, CTi:i EW iti iIK:]a ;5x9 ..,1h 'Ir 7.,-2, - -PDIF - V - _ :.: _ .-d 316 14) ., ,. f �-,r yZ .5".. .6 H1190�— Plis - ^8100- k / ( a4 ..."--.5,—;-- - 419ca A' i 'ntv YMhv - _ -8200-' j / -12000 6 4 �. . :__ . -:: -830052100- 4 1IG l)y.., --- F ,43aoo- - -e4op- - , 111 11. rli - _ ., -#2900- Sag & Ivishak Minilog Well(s): E-100 PaUO t:1164{_160IDsCdo cat•[:3002922111900 X.663094.89 SKID date:1997.16-23 00.04100 OD,htedieD) Short Y:5983106,93 5ca{a'1:600 Law aura,-lL JPAD 10 No 0 AKA date:1997.12-2o 60e0 60 LawDai:3/30/213 6416.61) Lalliade:70.342828( 279 3tatatt r�macoP:ssaut Tonal depth:13282 aW_SateY.a d wuno t3+1 C1H0n3 a,m„i9as HAP Carr. "-SS G. (ND) 1/913_ .. !NW harar 4.heron SARI391.83 319.91 3.10.11 1/$31 :39,0018.„ 1Y055 ! 4U'w S1 CC HET 71]:r w i VA J POF rS 01C0 Eb4S1N-iN6f C:014_1111116d 500 POI sC iso ay! a1 m vry 0.5 1 vry 0 CAU ZME7{ NPSS CALC_SALN-JE SA'H KGFQS0 t: tat 1 AAA"' yyyeee .. anw -:, 4s 1U 1-1 a vN a.5 t 0 6.t • tato dial_ic34 PRAt'_CPN0 GR • �jJ �J 0 2 CLX 1.6 250 A Q 7OEE. A-t03 P4/Id gra } } d CaKx_[q,7 86HI..9L003 51U1f 4 0 GAP7 i a) wmw as ., t:c� i,: a vv as a vry 0 _..--- - 5. C.7 =1 0 RA 60 1 ! 4S f 11A IA 1 -9000 2-9a' m. _ t r J. r S 00• t ' 9100 nateTett —_.----- _Tsf4c: =-:"— , 1 - i• 'mob 42se Fr tea+ .. -9200 ''. TM • _ 7511C s P •- $'.til � :f6,--;920. 11 •`; "� 7 PDWC t �+rt PariC y-9300 l �. -cj •f ,d • S MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE: Wednesday,July 06,2016 TO: Jim Regg P.I.Supervisor ice2t c 711 3/1(` SUBJECT: Mechanical Integrity Tests rBP EXPLORATION(ALASKA)INC. E-100 FROM: Chuck Scheve PRUDHOE BAY UN MDS E-100 Petroleum Inspector Src: Inspector Reviewed By: P.I.Supry_Te'P NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UN MDS E-100 API Well Number 50-029-22819-00-00 Inspector Name: Chuck Scheve Permit Number: 197-188-0 Inspection Date: 7/3/2016 Insp Num: mitCS160703144233 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well! E-100 Type Inj '' TVD 8015 - Tubing 1869 - 1870 - 1880 - 1867 • PTD 1971880 Type Test SPT Test psi 2004 _ IA 863 2506 2476 _ 2467 Interval 4YRTST P/F P OA 107 224 215 207 - Notes: %WO NOV 222016 Wednesday,July 06,2016 Page 1 of 1 Pages NOT Scanned in this Well History File~ XHVZE This page identifies those items that were not scanned during the initial scanning project. They are available in the original file and viewable by direct inspection. /~'~ ~ /~// File Number of Well History File PAGES TO DELETE RESCAN Color items - Pages: ~ Grayscale, halftone.s, pictures, graphs, charts - Pages: ~7c~'"' ~ ~ ' [] Poor Quality Original'-I~a"~es: [] Other- Pages: DIGITAL DATA Diskettes, No. L~ [] Other, No/Type OVERSIZED Logs of various kinds Other Complete COMMENTS: Scanned by: Beverly Mildred D'amth~owell TO RE-SCAN Notes: Re-Scanned by: Bever~ Mildred Daretha UNSCANNED, OVERSIZED MATERIALS AVAILABLE: \1r- [ '6' S< FILE # 3 (V\ u- ~ LD &s To request any/all of the above information, please contact: Alaska Oil & Gas Conservation Commission 1333 W. 7th Ave., Ste. 100 í Anchorage, Alaska 99501 Voice (907) 279-1433 IFax (907) 276-7542 1VIElVI®RAl®iD~.T19~I • To~ Jim Regg P.I. Supervisor ~,, c,' ~ I l 1 L~~ FROM: Chuck Scheve Petroleum Inspector State ®f Alaska • Alaska Oil and Gas Conservation Commission DATE: Wednesday, July 23, 2008 SUBJECT: Mechanical Integrity Tests BP EXPLORATION (ALASKA) INC E-100 PRUDHOE BAY UN MDS E-100 Src: Inspector NON-CONFIDENTIAL Reviewed By• P.I. Suprv -~ Comm Well Name: PRUDHOE BAY UN MDS E-100 Insp Num: mitCS08072t0621ot Rel Insp Num: API Well Number 5 0-029-22 8 1 9-00-00 Inspector Name• Chuck Scheve Permit Number: 197-188-0 Inspection Date: ~i19i2oos Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well E-100 (Type Inj. W T`7D i 8015 it IA i 840 i 2320 2300 I 2300 p.T l9nsso ~TypeTest ~ ~T Test psi zoos.~s ' OA o ~ iao tao lao i ~ Interval aYRTST per, P ~ Tubing I lsoo i ~soo lsoo iaoo i Notes: ~~~~~~~ AUG ~ ~ 20G8 Wednesday, July 23, 2008 Page 1 of 1 MEMORANDUM State of Alaska Alaska Oil and Gas Consenation Commission TO: Jim Regg P.I. Supervisor ¡:::'1'Í l(í{tICA DATE: Wednesda~. July 28. 2004 SlIBJECT: t\1echamcallntegrlt)' Tesls BP EXPLOR..-\ TION I ALASK.-\ I TNC E-IOO PRUDHOE BA Y UN MDS E-IOO FROM: Jeff Jones Petroleum Inspector Src: InspeclOT Re\'iewed B\': P.I. Suprv :...r13Ç- Comm NON-CONFIDENTIAL \Vell Name: PRUDHOE BAY UN ~IDS E-IOO API \Vell Number: 50-029-22819-00-00 Insp Num: miUJ040728105151 Permit Number: 197-188-0 Rei Insp Num: Inspector Name: Jeff Jones Inspection Date: 7/22/2004 Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well E-1OO Type Inj. TVD 9.¡23 IA 20 2200 1180 2180 P.T. 1971880 TypeTest SPT Test psi 2003.5 OA .¡O 300 300 300 Inten'al .¡ YR TS T P/F P Tubing 1200 1200 1200 1200 Notes: 1.5 BBLS 50/50 methanol pumped. 1 well house inspected: no exceplions noted. Wednesday. July 28 ::!00.t Page 1 of I STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG REVISED: 02/17/98 1. Status of Well []oi~ Classification of Service Well ~_~ Gas [~J Suspended [] Abandoned E] Service 2. Name of Operator BP Exploration (Alaska)Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 5001' NSL, 500' WEL, SEC. 06, T11N, R14E, UM At top of productive interval 1858' NSL, 1624' WEL, SEC. 30, T12N, R14E, UM At total depth 2800' NSL, 1653' WEL, SEC. 30, T12N, R14E, UM ~.- Alaska Oil & Gas Cons. Anchorage ~ 7. Permit Number 97-188 8. APl Number 50-029-22819 9. Unit or Lease Name Prudhoe Bay Unit t0. Well Number ~11. Field and Pool Prudhoe Bay Field / Sambucca Pool Prudhoe Bay Field / Midnight Sun Pool 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Serial No. KBE = 71'I ADL 028299 12. Date Spudded10/25/97 113' Date T'D' Reached I 14' Date C°mp" Susp" °r Aband'l15' water depth' if °fish°re I 16' NO' °f C°mpleti°nsl 1/23/97 12/20/97 N/A MSL, One 17. Total Depth (MD+TVD)118. Plug Back Depth (MD+TVD)I19. Directional Survey 120. Depth where SSSV set 121. Thickness of Permafrost 13282 9423 FTI 13189 9337 FTI I~Yes I~JNo (Nipple) 2242' MD 1900' (Approx.) 22. Type Electric or Other Logs Run MWD, DIR, GR, RES, RES / AlT, DT / BHC, CNL, LDL, GR, Caliper, SP, MRES, CMR, RFT, BHC Sonic, CBL, USIT 23. CASING, LINER AND CEMENTING RECORD CEMENTING RECORD AMOUNT PULLED 260 SX Arctic Set (Approx.) 2189 sx PF 'E', 335 sx Class 'G' 300 sx Silicalite 180 sx Class 'G' CASING SETTING DEPTH [ -HOLE SIZE WT. PER FT. GRADE TOP BO-FI'OM I SIZE 20" 91.5 H-40 Surface 80' I 30" 9-5/8" 47# L-80 35' , 4441' 112-1/4," 7" 29# L-80 33' 12906' ] 8-1~2' 4-1/2" 12.6# L-80 11845' 13277' I 6 25. TUBING RECORD SIZE DEPTH SET (MO) PACKER SET (MD) 4-1/2", 12.6#, L-80 11646' 11620' 26. ACID FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11775' - 11795' ROPE perf with 8500 psi Nitrogen 13150'- 13165' ROPE perf with 8500 psi Nitrogen Freeze Protect with 75 Bbls of Diesel 24. Perforations open to Production (MD+TVD of Top and Bottom and interval, size and number) 2-1/2" Gun Diameter, 4 spf 2~1/2" Gun Diameter, 6 spf MD TVD MD TVD Kuparuk Sands Ivishak Sands 11775' - 11795' 8122' - 8136' 13150' - 13165' 9299' - 9313' XXN plug set in XN Nipple at 13025' 27. PRODUCTION TEST Date First Production I Method of Operation (Flowing, gas lift, etc.) Exploration Ballot Testing *I Flowing from Kuparuk Sands - Exploration Ballot Testing )ate of Test IHours Tested IPRODUCTION FOR IOIL-BBL IGAS-MOF iWATER-BBL 2/7/98 I 13 ITEST PERIOD I 2280 BO I 837 MSCFG ! 0 BW Flow Tubing ICasing pressure ICALCULATEB IOIL-BBL IGAS-MOF !WATER-BBL Press. 6601 620 124-HOUR RATE I 4113 BOPD I 1545 MSCFG ! 0 BWPD 28. CORE DATA CHOKE SIZE I GAS-OIL RATIO 46/64 in [ 376 MSCFG/STBO OIL GRAVITY-APl (CORR) 29 Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. * Exploration Ballot Testing: 12/20/97 Ivishak Testing, 01/20/98 Kuparuk Testing Kuparuk Reservoir: Upper zone, fine to medium grained siderite cemented sandstone with good gas and oil shows. Lower zone, fine to coarse grained sands with good visible porosity and good oil and gas shows. [vishak Reservoir: Coarse sandstone and conglomerates, poorly sorted with up to 60% chert and good visible porosity. Moderate gas and oil shows. Submit In Duplicate 29. Geologic Markers Formation Tests 3O. Measured True Vertical Include interval tested, pressure data, all fluids Marker Name Depth Depth recovered and gravity, GOR, and time of each phase. Top of Kuparuk 11494' 7934' Ivishak Test 12/28/97 Flowing on 48/64th choke @ 248 psig for 15 hours: Base of Kuparuk 11658' 8041' 739 BO (APl=24), 120 BW, 368 MSCFG (SG=0.72). Sag River 12957' 9119' Kuparuk Test 2/7/98 Flowing on 46/64th choke @ 660 psig for 13 hours: Shublik 13011' 9169' 2228 BO (APl=29), 0 BW, 837 MSCFG (SG=0.7). Sadlerochit 13069' 9223' 31. List of Attachments Summary of Daily Dril~/:g Reports, S/eys 32. I hereby certify th@~.._~ ~oreg~ng iz~rue and correct to the best of my knowledge ,' IJ ," , TimA. Burns.~W" /. ~'%1 ~/Vw""-- Title Senior Drilling Engineer Date Sam #1 97-188 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No. / Approval No. INSTRUCTIONS GENERAL: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. ITEM 1: Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. ITEM 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. ITEM 16 AND 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. ITEM 21: Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). ITEM 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, Other-explain. ITEM 28: If no cores taken, indicate 'none'. Operator BP Exploration Performance Enquiry Report Date 20:46, 30 Jan 98 Formation Integrity Test Report Page The analysis is from- 00:00, 02 Nov 97 - to - 19:30, 21 Nov 97 Programs in Result Table: Sambuca well Type Time From Sambuca Event 00:00, 02 Nov 97 Sambuca Event 19:30, 21 NOv 97 Time To Duration Description 00:00, 02 Nov 97 0 hr 0 min Obtained leak off 19:30, 21 Nov 97 0 hr 0 min Obtained leak off E.M.W.(ec!uivalent mud weight) Depth MDR Hole Size MDR 12.5 5000.0 8-1/2 14.8 13009.0 6 Facility Date/Time 25 Oct 97 26 Oct 97 27 Oct 97 28 Oct 97 29 Oct 97 30 Oct 97 PB E Pad Progress Report Well Sambuca Rig Doyon#9 Page Date 00:00-00:30 00:30-06:00 06:00-07:00 07:00-10:00 10:00-12:00 12:00-12:30 12:30-15:30 15:30-16:00 16:00-16:30 16:30-17:00 17:00-00:00 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-00:00 00:00-00:30 00:30-01:00 01:00-02:00 02:00-03:00 03:00-04:00 04:00-06:00 06:00-12:00 12:00-12:30 12:30-00:00 00:00-00:30 00:30-02:30 02:30-03:30 03:30-04:00 04:00-06:00 06:00-12:00 12:00-12:30 12:30-00:00 00:00-00:30 00:30-03:00 03:00-04:00 04:00-05:30 05:30-06:00 06:00-07:00 07:00-09:30 09:30-10:30 10:30-13:00 13:00-13:30 13:30-14:00 14:00-15:00 15:00-15:30 15:30-23:30 23:30-00:00 00:00-00:30 00:30-03:00 03:00-04:00 04:00-04:30 04:30-06:00 06:00-07:00 Duration 1/2 hr 5-1/2 hr 1 hr 3 hr 2 hr 1/2 hr 3 hr 1/2 hr 1/2 hr 1/2 hr 7 hr 1/2 hr 5-1/2 hr 6 hr 1/2 hr 11-1/2 hr 1/2 hr 1/2 hr 1 hr 1 hr 1 hr 2 hr 6 hr 1/2 hr 11-1/2 hr 1/2 hr 2 hr 1 hr 1/2 hr 2 hr 6 hr 1/2 hr 11-1/2 hr 1/2 hr 2-1/2 hr 1 hr 1-1/2 hr I/2 hr 1 hr 2-1/2 hr 1 hr 2-1/2 hr 1/2 hr 112 hr 1 hr 1/2 hr 8 hr 1/2 hr 1/2 hr 2-1/2 hr I hr 1/2 hr ! - 1/2 hr I hr Activity Held safety meeting Rig moved 95.00 % Rig moved 100.00 % (cont...) Rigged up Divertor Installed Service lines Held safety meeting Made up BHA no. 1 Held safety meeting Tested Divertor Functioned M.W.D. tool Drilled to 420.0 ft Held safety meeting Drilled to 750.0 ft Drilled to 1017.0 ft (cont...) Held safety meeting Drilled to 1550.0 ft Held safety meeting Drilled to 1630.0 ft Pulled out of hole to 200.0 ft Pulled BHA Made up BHA no. 1 R.I.H. to 1630.0 ft Drilled to 1867.0 ft Held safety meeting Drilled to 2750.0 ft Held safety meeting Drilled to 3000.0 ft Pulled out of hole to 1600.0 ft R.I.H. to 3000.0 ft Drilled to 3120.0 ft Drilled to 3438.0 ft (cont...) Held safety meeting Drilled to 4200.0 ft Held safety meeting Drilled to 4445.0 ft Circulated at 4445.0 ft Pulled out of hole to 1092.0 ft R.I.H. to 1600.0 ft R.I.H. to 4445.0 ft (cont...) Circulated at 4445.0 ft Pulled out of hole to 1092.0 ft Pulled BHA Held safety meeting Removed Drillfloor / Derrick Rigged up Casing handling equipment Held safety meeting Ran Casing to 3428.0 ft (9-5/8in OD) Washed to 3469.0 ft Held safety meeting Ran Casing to 4445.0 ft (9-5/8in OD) Circulated at 4445.0 ft Laid down 82.0 ft of Casing Circulated at 4445.0 ft Circulated at 4441.0 ft (cont...) 1 30 January 98 Facility Date/Time 31 Oct 97 01 Nov 97 02 Nov 97 03 Nov 97 PB E Pad Progress Report Well Sambuca Page 2 Rig Doyon#9 Date 30 January 98 07:00-07:30 07:30-08:00 08:00-09:00 09:00-12:30 12:30-13:00 13:00-15:00 15:00-15:30 15:30-16:30 16:30-18:00 18:00-20:30 20:30-00:00 00:00-00:30 00:30-03:00 03:00-03:30 03:30-06:00 06:00-07:30 O?:30-Og:O0 08:00-10:30 10:30-11:30 11:30-12:30 12:30-13:00 13:00-06:00 06:00-13:30 13:30-14:00 14:00-15:00 15:00-16:00 16:00-16:30 16:30-19:00 19:00-20:00 20:00-21:00 21:00-22:15 22:15-22:30 22:30-23:30 23:30-00:00 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-13:00 13:00-13:30 13:30-14:00 14:00-14:30 14:30-00:00 00:00-00:30 00:30-03:30 03:30-04:00 04:00-04:30 04:30-05:00 05:00-06:00 06:00-12:00 12:00-12:30 12:30-16:00 16:00-18:00 I 8:00- ! 8:15 Duration I/2 hr 1/2 hr 1 hr 3-1/2 hr 1/2 hr 2 hr 1/2 hr 1 hr 1-1/2 hr 2-1/2 hr 3-1/2 hr I/2 hr 2- I/2 hr 1/2 hr 2-1/2 hr 1-1/2 hr 1/2 hr 2-1/2 hr 1 hr 1 hr 1/2 hr 17 hr 7~ 1/2 hr 1/2 hr 1 hr 1 hr 1/2 hr 2-1/2 hr 1 hr 1 hr 1~1/4 hr 1/4 hr 1 hr 1/2 hr 1/2 hr 5~ 1/2 hr 6 hr 1/2 hr I/2 hr 1/2 hr 1/2 hr 1/2 hr 9-1/2 hr 1/2 hr 3 hr 1/2 hr 1/2 hr I/2 hr 1 hr 6 hr 1/2 hr 3-I/2 hr 2 hr 1/4 hr Activity Mixed and pumped slurry - 196.000 bbl Displaced slurry - 319.000 bbl Held 1500.0 psi pressure on 1.000 bbl squeezed cement Circulated at 2277.0 ft Held safety meeting Mixed and pumped slurry - 720.000 bbl Displaced slurry - 166.000 bbl Cleared Flowline Rigged down Handling equipment Removed Divertor Installed Casing head Held safety meeting Installed BOP stack Rigged up High pressure lines Tested BOP stack Tested BOP stack (cont...) Rigged down High pressure lines Made up BHA no. 2 R.I.H. to 1040.0 ft Serviced Block line Held safety meeting Rig waited: Assessed situation Rig waited: Assessed situation (cont...) R.I.H. to 2240.0 ft Drilled cement to 2240.0 ft R.I.H. to 4082.0 ft Held drill (Kick (well kill)) Drilled cement to 4345.0 ft Circulated at 4345.0 ft Tested Casing Drilled cement to 4444.0 ft Drilled to 4465.0 ft Circulated at 4465.0 ft Performed formation integrity test Held safety meeting Drilled to 5000.0 ft Drilled to 5000.0 ft (cont...) Held safety meeting Drilled to 5513.0 ft Circulated at 5513.0 ft Pulled out of hole to 4420.0 ft R.I.H. to 5500.0 ft Drilled to 6177.0 ft Held safety meeting Drilled to 6526.0 ft Circulated at 6526.0 ft Pulled out of hole to 6526.0 ft R.I.H. to 6456.0 ft Drilled to 6620.0 ft Drilled to 6969.0 ft (cont...) Held safety meeting Drilled to 7268.0 ft Circulated at 7268.0 ft Pulled out of hole to 6955.0 ft Facility PB E Pad Date/Time 18:15-18:30 18:30-19:30 19:30-23:00 23:00-00:00 04 Nov 97 00:00-00:30 00:30-03:00 03:00-06:00 06:00-06:30 06:30-12:00 12:00-12:30 12:30-15:00 15:00-15:30 15:30-15:45 15:45-16:00 16:00-00:00 05 Nov 97 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-13:00 13:00-13:45 13:45-14:30 14:30-15:00 15:00-00:00 06 Nov 97 00:00-00:30 00:30-06:00 06:00-09:00 09:00-10:00 10:00-10:30 10:30-11:00 11:00-12:00 12:00-12:30 12:30-00:00 07 Nov 97 00:00-00:30 00:30-02:30 02:30-03:30 03:30-04:00 04:00-04:30 04:30-06:00 06:00-12:00 12:00-12:30 12:30-22:00 22:00-23:00 23:00-23:30 23:30-00:00 08 Nov 97 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-15:30 15:30-16:30 16:30-02:00 Progress Report Well Sambuca Rig Doyon#9 09 Nov 97 02:00-06:00 Duration 1/4 hr I hr 3-1/2 hr I hr 1/2 hr 2-1/2 hr 3 hr 1/2 hr 5-1/2 hr 1/2 hr 2-1/2 hr 1/2 hr 1/4 hr 1/4 hr 8 hr 1/2 hr 5-1/2 hr 6 hr 1/2 hr 1/2 hr 3/4 hr 3/4 hr 1/2 hr 9 hr 1/2 hr 5-1/2 hr 3 hr 1 hr 1/2 hr 1/2 hr 1 hr 1/2 hr 11-1/2 hr 1/2 hr 2 hr 1 hr 1/2 hr I/2 hr 1-1/2 hr 6 hr 1/2 hr 9-1/2 hr 1 hr I/2 hr 1/2 hr 1/2 hr 5-1/2 hr 6 hr 1/2 hr 3 hr I hr 9-1/2 hr Activity R.I.H. to 7268.0 ft Circulated at 7268.0 ft Pulled out of hole to 1050.0 ft Pulled BHA Held safety meeting Made up BHA no. 3 R.I.H. to 7200.0 ft R.I.H. to 7260.0 ft (cont...) Drilled to 7553.0 ft Held safety meeting Drilled to 7773.0 ft Circulated at 7.0 ft Pulled out of hole to 7200.0 ft R.I.H. to 7773.0 ft Drilled to 8086.0 ft Held safety meeting Drilled to 8440.0 ft Drilled to 8685.0 ft (cont...) Held safety meeting Drilled to 8780.0 ft Circulated at 8780.0 ft Pulled out of hole to 7700.0 ft R.I.H. to 8780.0 ft Drilled to 9129.0 ft Held safety meeting Drilled to 9550.0 ft Drilled to 9732.0 ft (cont...) Circulated at 9732.0 ft Pulled out of hole to 8700.0 ft R.I.H. to 9732.0 ft Drilled to 9764.0 ft Held safety meeting Drilled to 10579.0 ft Held safety meeting Drilled to 10758.0 ft Circulated at 10758.0 ft Pulled out of hole to 9688.0 ft R.I.H. to 10718.0 ft Drilled to 10840.0 ft Drilled to 11148.0 ft (cont...) Held safety meeting Drilled to 11715.0 ft Circulated at 11715.0 ft Pulled out of hole to 10724.0 ft R.I.H. to 11670.0 ft Held safety meeting Drilled to 11830.0 ft Drilled to 12002.0 ft (cont...) Held safety meeting Drilled to 12129.0 ft Circulated at 12129.0 ft Page 3 Date 30 January 98 4 hr Logged hole with LWD: Formation evaluation (FE) from 11835.0 ft to 10950.0 ft Pulled out of hole to 4400.0 ft Facility Date/Time 10 Nov 97 11 Nov 97 12 Nov 97 13 Nov 97 14 Nov 97 PB E Pad Progress Report Well Sambuca Page 4 Rig Doyon #9 Date 30 January 98 06:00-09:00 09:00-12:00 12:00-12:30 12:30-16:30 16:30-19:00 19:00-20:30 20:30-00:00 00:00-00:30 00:30-05:00 05:00-06:00 06:00-09:00 09:00-10:30 10:30-12:00 12:00-12:30 12:30-20:00 20:00-21:30 21:30-00:00 00:00-00:30 00:30-06:00 06:00-12:30 12:30-13:00 13:00-14:00 14:00-16:30 16:30-17:30 17:30-19:00 19:00-20:00 20:00-21:30 21:30-06:00 06:00-13:30 13:30-22:30 22:30-23:00 23:00-00:00 00:00-00:30 00:30-02:30 02:30-04:30 04:30-05:30 05:30-06:00 06:00-07:30 07:30-08:30 08:30-12:00 12:00-12:30 12:30-13:30 13:30-18:30 18:30-20:30 20:30-00:00 00:00-00:30 00:30-03:00 03:00-05:00 05:00-06:00 06:00-10:00 10:00-12:00 12:00-12:30 12:30-15:30 15:30-22:30 Duration 3 hr 3 hr 1/2 hr 4 hr 2-I/2 hr 1-1/2 hr 3-1/2 hr 1/2 hr 4-1/2 hr I hr 3 hr 1-1/2 hr 1-1/2 hr 1/2 hr 7-1/2 hr I-1/2 hr 2-1/2 hr 1/2 hr 5-1/2 hr 6-1/2 hr 1/2 hr 1 hr 2-1/2 hr 1 hr 1- I/2 hr 1 hr 1-1/2 hr 8-1/2 hr 7-I/2 hr 9 hr 1/2 hr 1 hr 1/2 hr 2 hr 2 hr 1 hr 1/2 hr 1-1/2 hr 1 hr 3-1/2 hr 1/2 hr l hr 5 hr 2 hr 3-1/2 hr 1/2 hr 2-1/2 hr 2 hr I hr 4 hr 2 hr 1/2 hr 3 hr 7 hr Activity R.I.H. to 12050.0 ft Circulated at 12129.0 ft Held safety meeting Pulled out of hole to 1067.0 ft Pulled BHA Rigged up High pressure lines Tested BOP stack Held safety meeting Conducted electric cable operations Conducted electric cable operations Conducted electric cable operations (cont...) Conducted electric cable operations Ran logs on tubulars Held safety meeting Ran logs on tubulars Rigged up sub-surface equipment - Downhole tools Conducted electric cable operations Held safety meeting Conducted electric cable operations Conducted electric cable operations (cont...) Held safety meeting Conducted electric cable operations Pulled out of hole to 4441.0 ft Serviced Block line Pulled out of hole to 90.0 ft Conducted electric cable operations Tested BOP stack Conducted electric cable operations Conducted electric cable operations (cont...) Ran logs on tubulars Circulated at 8187.0 ft Pulled out of hole to 7232.0 ft Held safety meeting Pulled out of hole to 4441.0 ft Circulated at 4441.0 ft R.I.H. to 6311.0 ft Circulated at 6311.0 ft Circulated at 6311.0 ft (cont...) R.I.H. to 8208.0 ft Circulated at 8208.0 ft Held safety meeting R.I.H. to 11049.0 ft Circulated at 11049.0 ft Ran logs on tubulars Ran logs on tubulars Held safety meeting Ran logs on tubulars Rigged down sub-surface equipment - Formation logs Pulled out of hole to 9500.0 ft Pulled out of hole to 100.0 ft (cont...) Rigged down sub-surface equipment - Downhole measurement tools Held safety meeting Made up BHA no. 4 R.[.H. to 12092.0 ft ! ! Facility PB E Pad Date/Time 22:30-00:00 15 Nov 97 00:00-00:30 00:30-01:30 01:30-05:30 05:30-06:00 06:00-12:00 12:00-12:30 12:30-00:00 16 Nov 97 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-16:00 16:00-17:00 17:00-18:00 18:00-19:30 19:30-20:30 20:30-21:30 21:30-00:00 17 Nov 97 00:00-00:30 00:30-06:00 06:00-07:30 07:30-11:00 11:00-11:30 11:30-12:00 12:00-12:30 12:30-13:30 13:30-14:00 14:00-15:00 15:00-15:30 15:30-20:30 20:30-21:00 21:00-00:00 18 Nov 97 00:00-00:30 00:30-06:00 06:00-08:00 08:00-08:15 08:15-09:00 09:00-09:15 09:15-09:30 09:30-09:45 09:45-10:00 10:00-10:30 10:30-11:30 11:30-12:00 12:00-12:30 12:30-13:30 13:30-14:00 14:00-15:30 15:30-16:30 16:30-21:30 21:30-23:30 23:30-00:00 19 Nov 97 00:00-00:30 Progress Report Well Sambuca Rig Doyon#9 Page Date Duration I- 1/2 hr 1/2 hr I hr 4 hr I/2 hr 6 hr 1/2 hr 11-1/2 hr 1/2 hr 5-1/2 hr 6 hr 1/2 hr 3-1/2 hr 1 hr 1 hr 1-1/2 hr 1 hr 1 hr 2-1/2 hr 1/2 hr 5-1/2 hr 1-1/2 hr 3-1/2 hr 1/2 hr 1/2 hr 1/2 hr 1 hr I/2 hr 1 hr 1/2 hr 5 hr 1/2 hr 3 hr 1/2 hr 5-1/2 hr 2 hr 1/4 hr 3/4 hr 1/4 hr 1/4 hr 1/4 hr 1/4 hr I/2 hr 1 hr 1/2 hr 1/2 hr I hr 1/2 hr 1-1/2 hr 1 hr 5 hr 2 hr !/2 hr 1/2 hr Activity Washed to 12092.0 ft Held safety meeting Laid down 186.0 ft of 5in OD drill pipe Washed to 12129.0 ft Drilled to 12140.0 ft Drilled to 12275.0 ft (cont...) Held safety meeting Drilled to 12519.0 ft Held safety meeting Drilled to 12625.0 ft Drilled to 12750.0 ft (cont...) Held safety meeting Drilled to 12860.0 ft Circulated at 12860.0 ft Drilled to 12915.0 ft Circulated at 12915.0 ft Pulled out of hole to 11441.0 ft R.I.H. to 12915.0 ft Circulated at 12915.0 fi Held safety meeting Pulled out of hole to 3000.0 ft Pulled out of hole to 1059.0 ft (cont...) Pulled BHA Retrieved Wear bushing Rigged up Top ram Held safety meeting Rigged up Top ram Tested Top ram Rigged up Casing handling equipment Held safety meeting Ran Casing to 4395.0 ft (7in OD) Circulated at 4395.0 ft Ran Casing to 5765.0 ft (7in OD) Held safety meeting Ran Casing to 7in (11900.0 ft OD) Ran Casing to 12899.0 ft (7in OD) (cont...) Rigged up Casing hanger Circulated at 12899.0 ft Rigged up Cement head Tested Chicksan lines Tested Chicksan lines Pumped Water spacers - volume 70.000 bbl Mixed and pumped slurry - 109.000 bbl Displaced slurry ~ 466.500 bbl Rigged down Cement head Held safety meeting Installed Seal assembly Removed Casing handling equipment Freeze protect well - 60.000 bbl of Diesel Rigged up Top ram Tested BOP stack Laid down 1050.0 ft of Drillpipe Serviced Draw works Held safety meeting 5 30 January 98 Facility Date/Time 20 Nov 97 21 Nov 97 22 Nov 97 23 Nov 97 ! PB E Pad Progress Report Well Sambuca Page 6 Rig Doyon #9 Date 30 January 98 00:30-01:30 01:30-03:30 03:30-04:30 04:30-06:00 06:00-11:00 11:00-12:00 12:00-12:30 12:30-13:15 13:15-13:30 13:30-23:00 23:00-01:00 01:00-03:00 03:00-06:00 06:00-18:00 18:00-18:30 18:30-19:00 19:00-20:00 20:00-06:00 06:00-06:30 06:30-07:30 07:30-10:30 10:30-11:15 11:15-12:00 12:00-12:30 12:30-13:00 13:00-13:30 13:30-14:30 14:30-15:30 15:30-17:00 17:00-18:30 18:30-19:30 19:30-23:30 23:30-00:00 00:00-00:30 00:30-05:00 05:00-06:00 06:00-08:30 08:30-12:00 12:00-12:30 12:30-13:00 13:00-16:00 16:00-18:00 18:00-00:00 00:00-00:30 00:30-06:00 06:00-09:30 09:30-1 I:00 11:00-14:30 14:30-15:00 i 5:00-16:00 16:00-16:30 16:30-17:00 17:00-22:30 Duration I hr 2 hr I hr 1-1/2 hr 5 hr I hr 1/2 hr 3/4 hr 1/4 hr 9-1/2 hr 2 hr 2 hr 3 hr 12 hr 1/2 hr 1/2 hr 1 hr 10 hr 1/2 hr 1 hr 3 hr 3/4 hr 3/4 hr 1/2 hr 1/2 hr 1/2 hr 1 hr 1 hr 1-1/2 hr 1-1/2 hr 1 hr 4 hr 1/2 hr 1/2 hr 4-1/2 hr 1 hr 2-1/2 hr 3-1/2 hr 1/2 hr 1/2 hr 3 hr 2 hr 6 hr 1/2 hr 5-1/2 hr 3-1/2 hr 1-l/2 hr 3-1/2 hr 1/2 hr I hr 1/2 hr i/2 hr 5-I/2 hr Activity Laid down 2244.0 fl of Drillpipe Installed Kelly Tested Kelly Made up BHA no. 5 Made up BHA no. 5 (cont...) Singled in drill pipe to 200.0 ft Held safety meeting Singled in drill pipe to 1130.0 ft Tested M.W.D. tool - Via string Singled in drill pipe to 12648.0 ft Washed to 12821.0 ft Circulated at 12821.0 ft Held safety meeting Held safety meeting (cont...) Worked toolstring at 12800.0 ft Held safety meeting Serviced Block line Laid down 9700.0 ft of 5in OD drill pipe Held safety meeting Laid down 9450.0 ft of 5in OD drill pipe Circulated at 12821.0 ft Tested Casing - Via annulus and string Held drill (Stripping) Held drill (Accumulator) Held safety meeting Drilled installed equipment - Float collar Drilled cement to 12904.0 ft Drilled installed equipment - Float shoe Drilled to 12935.0 ft Circulated at 12935.0 ft Performed formation integrity test Circulated at 12935.0 ft Serviced Draw works Held safety meeting Drilled to 13009.0 ft Circulated at 13009.0 ft Circulated at 13009.0 ft (cont...) Circulated at 13009.0 ft Held safety meeting Circulated at 13009.0 ft Drilled to 13168.0 fi Circulated at 13049.0 ft Drilled to 13168.0 ft Held safety meeting Drilled to 13240.0 ft Drilled to 13282.0 ft (cont...) Circulated at 13282.0 ft Logged hole with LWD: Formation evaluation (FE) from 13282.0 ft to 12906.0 ft R.I.H. to 13282.0 ft Circulated at 13282.0 ft Pulled out of hole to 12906.0 ft Flow check Pulled out of hole to 200.0 ft Facility PB E Pad Progress Report Well Sambuca Page 7 Rig Doyon #9 Date 30 January 98 Date/Time 22:30-23:00 23:00-00:00 24 Nov 97 00:00-00:30 00:30-01:00 01:00-03:00 03:00-06:00 06:00-06:30 06:30-07:30 07:30-09:30 09:30-10:30 10:30-12:00 12:00-12:30 12:30-18:00 18:00-18:30 18:30-19:00 19:00-00:00 25 Nov 97 00:00-00:30 00:30-05:00 05:00-06:00 06:00-06:30 06:30-07:00 07:00-07:30 07:30-09:00 09:00-12:00 12:00-12:30 12:30-14:00 14:00-14:30 14:30-15:00 15:00-22:00 22:00-05:30 26 Nov 97 05:30-06:00 06:00-07:30 07:30-12:00 12:00-12:30 12:30-14:30 14:30-15:00 15:00-15:30 15:30-18:30 18:30-21:00 21:00-21:30 21:30-22:00 22:00-00:00 27 Nov 97 00:00-00:30 00:30-03:00 03:00-06:00 06:00-09:00 09:00-10:00 10:00-11:00 11:00-12:00 12:00- ! 2:30 12:30-13:30 13:30-14:00 14:00-14:30 14:30-15:00 Duration 1/2 hr I hr 1/2 hr 1/2 hr 2 hr 3 hr 1/2 hr 1 hr 2 hr I hr I-1/2 hr l/2 hr 5-1/2 hr 1/2 hr 1/2 hr 5 hr 1/2 hr 4-1/2 hr 1 hr 1/2 hr l/2 hr 1/2 hr 1-1/2 hr 3 hr 1/2 hr 1-1/2 hr 1/2 hr 1/2 hr 7 hr 7-1/2 hr 1/2 hr 1-1/2 hr 4-1/2 hr 1/2 hr 2 hr 1/2 hr 1/2 hr 3 hr 2-1/2 hr 1/2 hr 1/2 hr 2 hr I/2 hr 2-1/2 hr 3 hr 3 hr I hr I hr I hr 1/2 hr I hr 1/2 hr 1/2 hr I/2 hr Activity Pulled BHA Downloaded MWD tool Held safety meeting Pulled BHA Rigged up Logging/braided cable equipment Conducted electric cable operations Conducted electric cable operations (cont...) Conducted electric cable operations Conducted electric cable operations Made up BHA no. 6 R.I.H. to 1500.0 ft Held safety meeting R.I.H. to 12850.0 ft Circulated at 12850.0 ft R.I.H. to 13123.0 ft Reamed to 13215.0 ft Held safety meeting Reamed to 13256.0 ft Circulated at 13256.0 ft Pulled out of hole to 12850.0 ft Flow check R.I.H. to 13258.0 ft Circulated at 13258.0 ft Pulled out of hole to 3500.0 ft Held safety meeting Pulled out of hole to 50.0 ft Pulled BHA Held safety meeting Conducted electric cable operations Conducted electric cable operations Test Logging/braided cable equipment unit Test Logging/braided cable equipment unit (cont...) Conduct braided cable operations - 5/16 size cable Held safety meeting Conduct braided cable operations - 5/16 size cable Conduct braided cable operations - 5/16 size cable Serviced Drillfloor / Derrick Rigged up Casing handling equipment Ran Liner to 1400.0 ft (4-1/2in OD) Rigged up Tubing handling equipment Rig waited · Equipment Ran Tubing to 1309.0 ft (4-1/2in OD) Held safety meeting Ran Tubing to 1309.0 ft (4-1/2in OD) Ran Drillpipe in stands to 5000.0 ft Ran Drillpipe in stands to 12896.0 ft (cont...) Circulated at 12896.0 ft Ran Drillpipe in stands to 13277.0 ft Circulated at 13277.0 ft Held safety meeting Circulated at 13277.0 ft Mixed and pumped slurry - 35.000 bbl Displaced slurry - 87.500 bbl Retrieved downhole equipment - Liner hanger Facility Date/Time 28 Nov 97 29 Nov 97 30 Nov 97 Progress Report PB E Pad Well Sambuca Rig Doyon#9 Page 8 Date 30 January 98 15:00-17:30 17:30-18:00 18:00-19:00 19:00-21:30 21:30-22:30 22:30-23:30 23:30-00:00 00:00-00:30 00:30-06:00 06:00-09:30 09:30-10:00 10:00-11:30 11:30-12:00 12:00-12:30 12:30-13:00 13:00-16:30 16:30-17:30 17:30-23:30 23:30-00:00 00:00-00:30 00:30-03:00 03:00-03:30 03:30-06:00 06:00-12:00 12:00-12:30 12:30-13:30 13:30-14:30 14:30-18:30 18:30-19:30 19:30-23:30 23:30-00:00 00:00-00:30 00:30-01:30 01:30-02:00 02:00-04:30 04:30-06:00 06:00-07:00 07:00-10:00 10:00-12:00 Duration 2-1/2 hr 1/2 hr 1 hr 2-1/2 hr 1 hr 1 hr 1/2 hr 1/2 hr 5-1/2 hr 3-1/2 hr 1/2 hr 1-1/2 hr 1/2 hr 1/2 hr 1/2 hr 3-1/2 hr 1 hr 6 hr 1/2 hr 1/2 hr 2-1/2 hr 1/2 hr 2-1/2 hr 6 hr 1/2 hr 1 hr 1 hr 4 hr 1 hr 4 hr 1/2 hr 1/2 hr 1 hr 1/2 hr 2-1/2 hr 1-1/2 hr 1 hr 3 hr 2 hr Activity Circulated at 13176.0 ft Cleared Cement head Laid down 1344.0 ft of 3-1/2in OD drill pipe Circulated at 11836.0 ft Serviced Block line Laid down 1300.0 ft of 3-l/2in OD drill pipe Serviced Drillfloor / Derrick Held safety meeting Laid down 9000.0 ft of 3-1/2in OD drill pipe Laid down 11000.0 ft of 3-1/2in OD drill pipe (cont...) Laid down 40.0 fl of Tubing Laid down 1390.0 ft of Tubing Retrieved Bore protector Held safety meeting Rigged up High pressure lines Tested BOP stack Tested Casing Conducted electric cable operations Conducted electric cable operations Held safety meeting Conducted electric cable operations Rigged up Tubing handling equipment Ran Tubing to 4-1/2in (2000.0 ft OD) Ran Tubing to 8800.0 ft (4-1/2in OD) (cont...) Held safety meeting Ran Tubing to 9436.0 ft (4-1/2in OD) Installed SCSSSV nipple assembly Ran Tubing to 11616.0 ft (4-1/2in OD) Installed Tubing hanger Circulated at 11646.0 ft Tested Tubing Held safety meeting Tested Casing Removed High pressure lines Removed BOP stack Installed Xmas tree primary components Retrieved Hanger plug Freeze protect well - 75.000 bbl of Diesel Installed Xmas tree primary components T~HE. MATERIAL UNDER THIS COVER ~_~__S BEEN. ON OR BEFORE PL E ~.~_T~ ~^L UN ~_9_~~ ~o~.~'T H IS M A R K E STATE OF ALASKA - ~ ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown_ Stimulate_ Plugging_ Perforate_ Pull tubing _ Alter casing _ Repair well _ Other_X (prod ->lnj Conv) 2. Name of Operator BP Exploration, (Alaska), Inc. 3. Address P. O. Box 100360 Anchorage, AK 99510-0360 4. Location of well at surface 276' FNL, 500' FEL, Sec. 6, T11 N, R14E, UM At top of productive interval 3420' FNL, 1624' FEL, SEC. 30, T12N, R14E, UM At effective depth At total depth 2479' FNL, 1632' FEL, Sec. 30, T12N, R14E, UM 5. Type of Well: Development__ Explorato~__ Stratigraphic__ Service.__X 6. Datum elevation (DF or KB feet) RKB 71 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number E-100i (Sam #1) 9. Permit number / approval number 197-188 / 300-248 10. APl number 50-029-22819 --, ~ 11. Field / Pool Midnight Sun Oil Pool 12. Present well condition summar Total depth: measured true vertical Effective depth: measured true vertical Casing Length Conductor 80' Surface 4372' Intermediate 12837' Liner 1432' 13284 feet Plugs (measured) 9423 feet 12370 feet Junk (measured) 8595 feet TOC over sand plug @ 12370' (9/17/2000). 'IT Plug set @ 13023' on 1/11/1998. Size Cemented Measured Depth True vertical Depth 20" 260 sx AS 80' 80' 9-5/8" 2189 Sx PF E & 335 Sx Class G 4441' 3690' 7" 300 sx Silicate 12906' 9072' 4-1/2" 18o sx c~ass G 13277' 9417' Perforation depth: measured true vertical Tubing (size, grade, & measured depth) Packers and SSSV (type & measured depth) 11775' - 11795'; (12960' - 13010' isolated below sand plug /cement cap); (13150' - 13165' isolated under TT Plug). 8122' - 8136'; (9124' - 9170' isolated below sand plug / cement cap); (9299' - 9313' isolated under 'iT Plug). 4-1/2", 12.6#, L-80 Tbg @ 11646' MD RECEIVED 7"X 4-1/2", BAKER SB-3 PKR @ 11620' MD; BAKER ZXP PKR @ 11852' MD. 4.5" HES, 'HXO' SVLN ASSEMBLY @ 2242' MD. ..~.~. ~! 0 ~ ~ 0 0 ] 13. Stimulation or cement squeeze summary Intervals treated (measured) Treatment description including volumes used and final pressure Alaska Oil & Gas Cons. Comrr~ Anchorage 14. Prior to well operation Subsequent to operation Representative Daily Avera.qe Production or Injection Data Oil-Bbl Gas-Mcr Water-Bbl Casing Pressure Tubing Pressure (Shut in) - - 2700 - 1800 15. Attachments 16. Status of well classification as: Copies of Logs and Surveys run __ Daily Report of Well Operations ._._X Oil __ Gas __ Suspended __ a~/e~ s/rue and correct to the best of my knowledge. 17. I hereby certify th regoing i Signed ~ ¢e~'4--~. . .~ Jim Young Service Water Inj Form 10-404 Rev 06/15/88 · /O-//- ¢¢__h Date Prepared by Paul Rauf 564-5799 SUBMIT IN DUPLICATE ~ ~ E-100i (SAM#l) DESCRIPTION OF WORK COMPLETED WELL CLASSIFICATION CHANGE - PRODUCER CONVERTED TO WATER INJECTOR Date Event Summary 912712000: 8/02000 - 10/02000: 10/08/2000: 10/15/2000: MITIA to 3000 psi - passed. Performed drillsite facility modifications. Installed water injection pipeline to deliver produced water f/GC1. Placed E-100i on Produced Water Injection. Performed injectivity test (graph enclosed). MITIA to 2200 psi - passed. E-100 well's injectivity is 10% - 20% of expected. Sundry application is being prep~tred f/add perfs to increase injectivity. RECEIVED JAN 0 ,.3 Z0Ol Alaska Oil & Gas Cons. Commission, Anchorage Page I Sheetl Chart 1 E-100 SRT 10-8-00 Injection Rate vs WHIP 4000 35OO 3000 2500 2000 1500 1000 5O0 0 I [ [ I I I 1000 1200 1400 1600 1800 2000 2200 WHIP, psi Page 1 FRO~: PHILLIPS RK IbC FR× NO. : 90?2654894 06-20-00 STATE OF ALASKA ,t,. ~KA OIL AND GAS CONSERVATION COMb ........ iON APPLICATION FOR SUNDRY APPROVALS 0~ :02P P .04 1. Type of request: Abandons. Suspend_ Operational shutdown _ Re-enler suspended well _ AIIor casing _ Re. pair well _ Plugging _ Time exlension _ Slifnulate _ Change approved program _ Pull lubing _ Variance. _ Per/orate _ Other. X 2. Name of Operator Phillips Alaska, Inc. 3. Address P. O. Box 100360 Anchorage, AK 99510~0360 4. Location of well at surface 276' FNL, 500' FEL, Sec. 6, T11N, R14E, UM At top of productive interval 3420' FNL, 1624' FEL SEC. 30, T12N, R14E, UM At effective depth At total depth 2479' FNL, 1632' FEE Sec. 30, T12N, R14E, UM 5. Type of Well: Development. X Exploratory _ Str~ligraph ic Service (asp's 664447, 5976785) (asp's 663133,5984175) (asp's 663102, 5985114) 6. Datum elevation (DF or KB feet) RKB 71 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number E-100 (Sam #1) 9. Permit number / approval number 1 97-188 10. APl number 50-029-22819 11. Field / Pool Midnight Sun Oil Pool 12. Present well condition summary Total depth: measured tTUe vertical Effective depth: measured true vertical Casing Length Conductor 80' Surface 4 372' Intermediate 12837' Uner 1432' Size 20' 9-5/8" 7" 4-1/2" 13284 feet Plugs (measured) 9423 feet 13023 feet Junk (measured) 9180 feet Cemented 260 SX AS 2189 Sx PF E & 335 Sx Class G 300 5x 5ilicale 180 sx class G -CF Plug set @ 13023' on 1/11/1998. 0RI61NAL Measured Depth 80' 4441' 12906' 13277' Truever~calDepth 80' 3690' 9072' 9417' Perforation depth: measured true vertical Tubing (size, grade, and measured depth Packers & SSSV (type & measured depth) 11775' - 11795'; (13150' - 13165' isolated under -Ir Plug). 8122' - 8136'; (9299' - 9313' isolated under 'IT Plug). 4-1/2', 12.6#, L-80 Tbg @ 11646' MD 7" X 4-1/2", BAKER SB-3 PKR @ 11620' MD; BAKER ZXP PKR @ 11852' MD_ 4.5' HES, 'HXO' SVLN ASSEMBLY @ 2242' MD. 13. Attachments Description summary of proposal __X Detailed operations program __ BOP sketch 14. Estimated dale for commencing operation June 26, 2000 16. If proposal was verbally approved Name of approver Date approved 15. Status of well classification as: Oil __X Gas .... Suspended __ Service 17. I hereby cedlly lhal lbo loregolng Is true and oorrecl to lhe best of my knowledge. Questions? Call Mike Morgan 0 263-4332 FOR COMMISSION USE ONLY Conditions of approval: Notify Commission so representativemaywil~ess ' Ap_~.,~)o.I Plug ,nlegdly __ BOP m'__ ! -- ¢ Mechanical Integdl, Test Subsequent form required :0-~ I,~,,,~ ~~ ~,~.~,.~.. ~~ Approved by order of the Commission Form 10o403 Rev O6/15/88 ORIGINAL ~lu~,. D Taylor Seamu~,r- Commissioner SUBMIT IN TRIPLICATE PHILLIPS AK INC · FAX NO.: 90?2634894 86-28-08 03:03P P .05 Sundry Request to Complete and Test the Sag River in. SAM #l. (permit 97-1.88): The proposed SAM #1 testing operations, after completion of all preparatory subsurface work, are planned for a five to ten day period between July 1, 2000 to August 15, 2000. The objectives of the lest are: 1. to obtain a representative recombination fluid Sample from the Sag River tbrmation in the SAM #1 wellbore (schematic attached); and 2. to obtain pressure and flow data to as~ss reservoir productivity. All well work will be conducted in accordance with the requirements of 20 AAC 25.280 and consistent with current Phillips Alaska, Inc. Prudhoe Bay Unit standard wellwork praclices. The following is a summary of the planned procedure: · Install temporary flowline from SAM Itl. to adjacent 1'PA cycle well flowline. Pull XXN Plug at 13,024'MD. Underbalance peril)rate the Sag River interval from 12,960 - 13,010' MD-RKB. - Flow the well for a minimum of 24 hours to allow Sag .River perforation clean-up. · Reset XXN plug at 13,024'MD with memory pressure gauges to monitor pressure in the Ivishak during the test. · Place coil tubing straddle assembly at 11,595'MD to 11,885' MD to isolate the Kupamk perforation at 11,775'MD lo 11,795'MD. · Begin three It} five day Sag River flow test. · Collect separator liquid and gas samples fi)r off-site recombination and geochemical studies. Send a liquid and gas sample to PBU Central Lab for API and compositional analyses. · Retrieve coil tubing straddle assembly and pressure gauges. · Place plug at 13,024'MD to isolate the Ivishak. · Place plug at ! 1,870'MD to isolate the Kuparuk from the Sag River. · Remove temporary flowline. FRO~r: PHILLIPS RK INC FR× NO.: 90?2654894 86-28-88 05:03P P.06 Schematic of SAM#1 wellbore, a.k.a. E-100. Well: E-100 GPMA WEB Date: 4110100 ......... '2~2j.~ .'~ NI~[.[ ~, t;YJ~ I-~ ~N PLUG ~ N~ Olher (~u~, equip., e~_l - J~EL~Y 114~ ~ NiP ~ 2242 2 ~6~ 5~D~' ~ 5' ff~S- ~t~O' SV~d ~,~S~IBLY ~3~24 gi&l NIP ~.5"~ES '~N' NIPPY_ ~,' X~ F-~ ~ ~.d ~,~Bj ~ ~.~ ~ ~R3~- NI~ ~ Casing ~[~. ~! ~1~ ~ Gr~ T~ ~ ~ 11~38 - 9 625 ~ ~ L-~, ~ ~41 4~41 ~ ~ - 4 ~J 12 ~ I..~O 11.~2 l~"5r ~ 425 4 ~" ~ ~ I ?~ - Prat ~ ~HEAR I 1~8n- 2 5t0t a07~ CA~C K~2~8 C~ ~K ~ O TEGR_..O0~C 0 I'775. ~Z. ~ 20 4 ~ t.~7~- t~1~5- 9303- g312 !O t~l~. ~ 3275 ~ FROI4: PHILLIPS RK INC FRX NO. : 90?2634894 86-28-08 03:02P P.02 June 20, 2000 via fax Mr. Kenneth A. Boyd, Director Division of Oil and Gas Department of Natural Resources 550 West 7'" Avenue, Suite Anchorage, AK 99501 Mr. Robert N. Christenson, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Road Anchorage, AK 995(_}1-3192 RE: Request for Approval of Tract Operations on ADL 282_99, Commingling of Production in Well SAM #1, and Commingling of Production from Well SAM #1 Dear Mr. Boyd and Mr. Christenson, Phillips Alaska, Inc. ("Phillips"), for itself and on behalf of BP Exploration (Alaska), Inc., and Exxon Mobil Corporation ("ExxonMobiI"), hereby requests approval for Tract operations on ADL 28299 in the SAM #1 Well. (Permit 97-188, undefined Pool number 640155). Subsurlhce production commingling and surthce production commingling from multiple intervals in SAM #1 with that of the Prudhoe Oil Pool originating at E-Pad for processing at the GC-1 for a period of ten days is also requested. Phillips will be the Operator responsible tbr these operations. Production tYom SAM #1 prior to conversion to injection service in support of Midnight Sun development is planned to allow testing of the Permo-Tdassic Sag River interval. The objectives of the test are to ascerlain Sag River reservoir fluid composition (fluid sampling and analyses consistent with 20 AAC 25.270 are planned) and to assess reservoir quality in support of reservoir development evaluations. Subsurface commingling of Sag River/Ivishak production with Midnight Sun Kuparuk production will occur while perforating and conditioning the Sag River interval for standalone testing and fluid sampling. Plans are to flow the SAM#1 well at very low rates from all existing perforations while perforating the Sag River interval (1 to 4 hours). This technique will provide drawdown critical to successful, perforating. The well will then be flowed at maximum allowable rates fi)r 24 hours to the E-Pad/GC-1 facilities to allow sandface clean-up and conditioning of the interval for testing and sampling. The Ivishak and Kuparuk then will be isolated from Sag River production to provide isolated test data and an opportunity to sample production fi'om the Sag River interval. The attached Form 10-403 details the planned procedure. ARCO Aleeke, Inc. taa Subeldlary o~ AtlantlcRichf~eldComp, any FRON-: PHILLIPS AK INC FAX NO.: 9072634894 06-Zu-u~ ~ :~zK r.6o Production will be determined and allocated based on existing well testing protocols established and approved for other production that is surface commingled fi~r processing at GC-1. Specifically: lo All production from Sam #1 during the test period will t~ reporled separately to the Prudhoe Bay Ivishak Undefined Pool (pool number 640155). Although there will be a brief period (1 to 2 days) of planned subsurface cotmningling with production from the Midnight Sun Pool, thc volumes will be relatively small and will not be allocated to the individual Pools. , Phillips will report oil, gas and water production during the test period. Plans are to meter oil, gas and water production during the testing via the E-Pad test separator or a portable testing skid. There may be periods in which production is routed to the E- Pad manifold without metering; in these instances, production quantities will be estimated. . Allocation will be based upon metered test production volumes by either using the reported continuous flow volumes through the metering separator or an allocation based upon the E-Pad test separator results. There will be no NGL allocations. 4~ For royalty and production tax purposes, production allocated to SAM #1 during the tes~ period will be reported separately as production from lea~ ADL 28299. Production taxes and royalty will remain the responsibility of Phillips and Exxon_Mobil as Tract Owners. Notwithstanding any other agreements, the Tract Owners propose tha~ the 1980 Royalty Settlement Agreement apply ~o production attributable to ADL 28299 during the test period, subject ~o disallowance of any field cost deduction taken for such production if the State ultimately prevails in litigation of the field cost dispute between Exxon and DNR currently being pursued through the case of Exxon Corporation v. State of Alaska, No. S-9164, which is pending before the Alaska Supreme Court. The disallowance of field costs it' the State prevails in the lkigation of the field cost dispute will apply to Phillips despite the tact that Phillips is not a party to that dispute. Pay~nent for any amounts due the State because of any disallowed deduclions will include interest at the prime rate of interest of the Bank of America, N.T. and S.A., of San Francisco, California, compounded daily, as pre,~ribed in the respective Royalty Settlement Agreements. If you need any additional infi)rmation, please call Mike Morgan at 263-4332. Sincerely, J. W. Groth CC' D. W. Bom M. P. Evans R. B. Frazier (Phillips) (ExxonMobi.l) (BPA) E-100 i SSSV i NIPPLE 2245 i 3405 d 3410 i 11609 I NIP 11635{ 11636 11775 11790 11855 11870 12900 12901 12902i 129031 12904 ~ 12905 12906 ! 13024 NIP 13275 i GPMA WEB Date: 4/10/00 APk 500292281900 Well Type PROD Angle @ TS: deg @ SSSV Type: Orig Compltn: 12/15/97 Angle ~ TD: 22 deg @ 13284 Annular Fluid: Last W/O: Rev Reason: SBNP Reference Ref Log Date Lsst Update 3/16/00 Log Last Tag: t 3023' ELM ILast Tag Date: 3/15/00 TD 13361 flKB Max Hole 57 de9 @ 3950 11120/98 Minimum ID 3813" SSSVLN @ 2242', 'X' NIPPLE @ 11609', 'X' NIPPLE @ 11635' 12/24/98 'XN' NIPPLE ~_1._3..0._2_~'__HAS XXN PLUG Date Note 11/20/98 STATUS: ACTIVE Depth TVD Type Description ID 2242 2168 SSSV 45" HES, 'HXO' SVLN ASSEMBLY 3810 NIPPLE 11609 8007 NIP 45'~ HES 'X' NIPPLE 3810 11620 8015 PKR 7"x 4-1/2", BAKER SS-3 PKR 3880 11635 8025 NIP 45" HES 'X' NIPPLE 3810 11645 8032 WLEG Wireline Entry Guide 3 960 11852 8176 PKR BAKER ZXP PKR 4 380 11870 8189 NIP 45" HES 'X' NIPPLE 3 810 12900 9066 NiP 45" HES 'X' NIPPLE 3810 130249181 NIP 4 5" H E S 'XN' N I ?,?~__E.___w_/.~ X N Ptu9 set 1/11/98) 0000 Size Weight Grade Top Btm Feet Description 9 625 4700 L-80 0 4441 4441 SURFACE 7000 29.00 L-80 0 12906 12906 PRODUCTION S ze Weight 'G-rTa~'~ Top Btm Feet Descril~ 4500 1260 L-80 0 11646 11646 4 5" TBG 4,500 1260 L-80 11852 13277 1425 4 5" LINER Stn MD TVD Man Man VMfr VType VOD Latch Port TRO Date Vlv Mfr Type Rur~ Comment 1 3401 3072 CAMCO KBG-2-LS CA RA 10 TEGFb0000 0 11/30/98 SHEAR 2 5101 4079 CAMCO KBG-2-LS CA DK 10 TEGP~0000 0 11/30/98 3 6751 5069 CAMCO KBG-2-LS CA DK 1 0 TEGI%0000 0 11/30/98 4 8441 6069 CAMCO KBG-2-LS CA DK 1 0 TEGP~0000 0 11/30/98 5 10094 7067 CAMCO KBG-2-LS CA DK 10 TEGP~0000 O 11/30/98 6 11543 7964 CAMCO KBG-2-LS CA DK 10 TEGP~0000 0 11/30/98 Interval TVD Zone Status Feet SPF Date Type Comment 11795 13150 - 9298 - 9303 5 612/26/9 34J 13155 HMX 13155- 9303-9312 10 412/20/9 13165 STATE OF ALASKA -. · ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown _ Stimulate_ Plugging _ Perforate_ Pull tubing _ Alter casing _ Repair well _ Other_X 2. Name of Operator BP Exploration, (Alaska), Inc. 3. Address P. O. Box 100360 Anchorage, AK 99510-0360 4. Location of well at surface 276' FNL, 500' FEL, Sec. 6, T11 N, R14E, UM At top of productive interval 3420' FNL, 1624' FEL, SEC. 30, T12N, R14E, UM At effective depth At total depth 2479' FNL, 1632' FEL, Sec. 30, T12N, R14E, UM 5. Type of Well: Development__X Explorato~ Stratigraphic__ Service__ 6. Datum elevation (DF or KB feet) RKB 71 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number E-100 (Sam #1) 9. Permit number / approval number 197-188 / 300-165 10. APl number 50-029-22819 11. Field / Pool Midnight Sun Oil Pool 12. Present well condition summar Total depth: measured true vertical Effective depth: measured true vertical Casing Length Conductor 80' Surface 4372' Intermediate 12837' Liner 1432' 13284 feet Plugs (measured) 9423 feet 12370 feet Junk (measured) 8595 feet ORIGINAL Size Cemented Measured Depth True vertical Depth 20" 260 Sx AS 80' 80' 9-5/8" 2189 Sx PF E & 335 Sx Class G 4441' 3690' 7" 300 sx Silicate 12906' 9072' 4-1/2" 18o Sx c~ass G 13277' 9417' Perforation depth: measured true vertical Tubing (size, grade, & measured depth) Packers and SSSV (type & measured depth) 11775' - 11795'; (12960' - 13010' isolated below sand plug /cement cap); (13150' - 13165' isolated under TT Plug). 8122' - 8136'; (9124' - 9170' isolated below sand plug/cement cap); (9299' - 9313' isolated under TT Pluo). 4-1/2", 12.6#, L-80 Tbg @ 11646' MD ~-~".~ ~,~'-~ ~_¢~ ~- ~ ~~.. ~ 7" X 4-1/2", BAKER SB-3 PKR @ 11620' MD; BAKER ZXP PKR @ 11852' MD. ,"',~-: 22 20,00 4.5" HES, 'HXO' SVLN ASSEMBLY @ 2242' MD. 13. Stimulation or cement squeeze summary Intervals treated (measured) Treatment description including volumes used and final pressure 14. Prior to well operation Subsequent to operation Representative Daily Average Production or Injection Data OiI-Bbl Gas-Mcr Water-Bbl (Shut in) - (Shut in, awaiting for conversion to injector) Casing Pressure Tubing Pressure - 15. Attachments 16. Status of well classification as: Copies of Logs and Surveys run ~ Daily Report of Well Ope.rations ._X Oil ~X Gas ~ Suspended 17.1 hereby certify that ,th~o,r,~going is Service ,~~rrect to the best of my knowledge. Title: Alaska Drilling & Wells Technical Assistant Form 10-404 Rev 06/15/88 · Prepared by Paul Rauf 564-5799 SUBMIT IN DUPLICATE E-100 (SAM#l) DESCRIPTION OF WORK COMPLETED COMMINGLING PRODUCTION TEST Date Event Summary 7/24/2000: 7/25/2000: 8/12/2000: 8/14/2000: 8/15/2000: 8/17/2000: RIH & changed out Sta #1 GLV. Attempted to pull TT plug - unsuccessful. Pulled Sta #1 @ 3377' SLM, CA-BK-INT, DGLV. Set Sta #1 CA-BK-INT, 3/8" Orif. Pull 4-1/2" Slip stop C-Sub (GLV). MIRU SLU. RIH w/dummy gun & tagged TT plug @ 13007'. POOH. RD SLU. MIRU ELU. PT'd equip. RIH w/perf guns & shot 50' of add perforations @: 12960' - 13010' MD (Sag River Zone) Reference Log: BHCS 11/24/1997. Used 3-3/8" carriers and all shots @ 6 SPF, 60° phasing, random orientation, & balanced pressure. POOH w/guns. ASF. RD ELU. Ran static BHP survey. Ran catcher sub. Attempted to pull Sta #1 DGLV @ 11533' without success. LDFN. Pulled 1" dummy GLV f/Sta #1 @ 11526' & installed HES BHP side pocket gauge. Pulled catcher. Sag Test. Tested commingled rates, estimate - 10 MMSCFD incremental f/Sag. No appreciable condensate liquids. ITest Duration = 4 hours; Oil = 1488 STB/D; Water = 29 STB/D; Gas = 18533 MSF/D; FM I GOR = 12455; Choke = 176; Separator press = 784 psi. I 8/27/2000: 8/28/2000: 8/29/2000: 9/02/2000: 9/03/2000: 9/04/2000: 9/05/2000: MIRU CTU. PT'd equip. Killed well w/2% KCL Water. RIH w/4-1/2" straddle packer assembly to isolate the following perforation interval: 11775' - 11795' MD (Kuparuk Zone) Located nipples @ 11635' / 11609'. Positioned elements @ 11640' / 11938'. Dropped ball, press to 2500 psi, & sheared out. Dropped ball & @ 6 bbls away, lost string weight & WHP increased. Ball did not get to seat. POOH - straddle packer assembly left in hole as fish. RIH w/fishing tools but no recovery. RIH & latched fish - POOH w/partial recovery. Recovered top packer, tubing, & mandrel f/ lower packer mech disconnect. Lost 2-2/1 elements f/top packer & 1 mech slip (overall length of fish left in hole is 6.4'). FP'd well. RD. RIH w/LIB. RIH w/junk basket & recovered I elastomer f/packer. RIH & moved fish f/12094' to 11880'. RIH & latched fish - POOH w/packer (BTM element missing). RIH w/junk basket & recovered 13 balls & packer slip. RIH & pulled 1" GLM mem gauge. SEP 22. 2000 A~omge E-100 (SAM#l) .~ .... DESCRIPTION OF WORK COMPLETED COMMINGLING PRODUCTION TEST Date Event Summary 9/10/2000: RIH & tagged BTM @ 13004'. Ran PPROF. Confirms Sag in gas phase. IOil = 2850 STB/D; Water = 8 STB/D; Gas = 12466 MSF/D; FM GOR = 4450. 9/11/2000: 9/12/2000: 9/18/2000: RIH & obtained 2 Sag samples @ 12674'. Well in test while sampling. FBHP =- 2800 psig & FBHT =- 190° F. RIH & set catcher sub. Pulled LGLV f/Sta # 6 @ 3380'. Replaced w/DGLV. Pulled catcher sub. RIH & dumped 6200 lbs of river sand on TT plug to isolate the Sag River perforations mentioned above. Estimated TOS @ 12500'. RIH & placed 1/2 bbl of Class G Cement on top of the sand plug. TOC - 12370'. Well E-100 is currently shut-in. Future work calls for it to be converted f/a producer to a water only injector into the Kuparuk Formtion. A Sundry Application is being prepared. Page 2 STATE OF ALASKA .... - ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of request: Abandon_ Suspend_ Operational shutdown _ Re-enter suspended well _ Alter casing _ Repair well _ Plugging _ Time extension _ Stimulate _ Change approved program _ Pull tubing _ Vadance _ Perforate _ (Conversion f/ Prod -> InJ) Other_X 2. Name of Operator BP Exploration, (Alaska), Inc. 3. Address P. O. Box 196612 Anchorage, AK 99519-6612 4. Location of well at surface 276' FNL, 500' FEL, Sec. 6, T11N, R14E, UM At top of productive interval 3420' FNL, 1624' FEL, SEC. 30, T12N, R14E, UM At effective depth At total depth 2479' FNL, 1632' FEL, Sec. 30, T12N, R14E, UM 5. Type of Well: Development __X Exploratory __ Stratigraphic _ Service __ (asp's 664447, 5976785) (asp's 663133, 5984175) (asp's 663102, 5985114) 6. Datum elevation (DF or KB feet) RKB 71 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number E-100 (Sam #1 ) 9. Permit number / approval numbe~ 197-188 10. APl number 50-029-22819 11. Field / Po01 Midnight Sun Oil Pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Length Conductor 80' Surface 4372' Intermediate 12837' Uner 1432' Perforation depth: measured true vertical Tubing (size, grade, and measured depth Packers & SSSV (type & measured depth) 13284 feet Plugs (measured) TOC over sand plug @ 12370' (9/17/2000). 9423 feet TT Plug set @ 13023' on 1/11/1998. 12370 feet Junk (measured) 8595 feet Size Cemented Measured Depth True vertical Depth 20" 260 sx AS 80' 80' 9-5/8" 2189 Sx PF E & 335 Sx Class G 4441' 3690' 7" 300 sx Silicate 12906' 9072' 4-1/2" ~8o sx c~ass G 13277' 9417' ORIGINAL 11775' - 11795'; (12960' - 13010' isolated below sand plug / cement cap); (13150' - 13165' isolated under TT Plug). 8122' - 8136'; (9124' - 9170' isolated below sand plug/cement cap); (9299' - 9313' isolated under TT Plug). 4-1/2", 12.6#, L-80 Tbg @ 11646' MD 7" X 4-1/2", BAKER SB-3 PKR @ 11620' MD; BAKER ZXP PKR @ 11852' MD. 4.5' HES, 'HXO' SVLN ASSEMBLY @ 2242' MD. 13. Attachments Description summary of proposal __X Detailed operations program __ BOP sketch 15. Status of well classification as: 14. Estimated date for commencing operation September 27, 2000 16. If proposal was verbally approved Name of approver Date approved Oil __X Gas __ Suspended Service 17. I hereby certi~/Jh~t the foregoing is true and correct to the best of my knowledge. Questions? Call Jim Young @ 564-5754 // · Sign ed jim yo {. /i.,;,,,.,4 ~)'~t~.4~un~ /v~i (- Title: GPB West End New Developments Production ErlgineerPrepared Dateby Paul Rauf 5--564.5799 FOR COMMISSION USE ONLY Conditions of approval: Notify Commission so representative may witness Appro...~n~ .... Plug integrity __ BOP Test _ Location clearance __ Subs. equent forrn required lO- MechanicallntegrityTest~ ,pt/~d, t D_~ ~'z7~ ~'/~ /..~E~/~/~'~-' ~I¢..: /~--.('~.~'"~ ~"~ Approved by order of the Commission ?~ TQ_Vior ~9~,7,~ ~n~ Commissioner Date Form 10-403 Rev 06/15/88 · SUBMIT IN TRIPLICATE BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O: Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 September 21,2000 Dan Seamount & Cammy Oechsli Taylor Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 Fax 276-7542 Re: E-100 (Sam #1) Sundry Notice and Waiver Request Dear Commissioners' Attached is a Sundry Application for BP Exploration (Alaska), Inc for well E-100. This Sundry Application requests a classification change for Well E-100 from a shut-in producer to an injector. The well will be used for water injection only. The 7" casing will have an MIT test prior to and during injection and we believe control and proper monitoring of PWl injection can be maintained. Details of the proposed monitoring and testing routines to assure isolation are included as attachments to this correspondence. If you have any questions, please contact Jim Young @ 564-5754 or email me at youn.qi3 @ bp.com. Sincerely, GPB West End New Developments Production Engineer DS E-100 ..... Sundry Notice 10-403 Application 9/21/2000 Discussion Well E-100 (Sam #1) is currently a shut-in producer due to Midnight Sun Reservoir voidage concerns. Injection into Well E-100 is necessary to provide pressure support to E-101 and replace voidage from the Midnight Sun Reservoir. A waterflood in the Midnight Sun Reservoir is expected to increase recovery by 15 to 25 percent and is detailed in the area injection order application. The well will be water only injection into the Kuparuk Formation. Action Plan 1. Perform MIT prior to injection startup. 2. Hookup and pressure test injection flowline with fail-safe automatic surface safety valve. 3. Establish stabilized injection at approximately 2000 psig injection pressure. 4. State witnessed MITIA after well temperature / pressure stabilized and every 4 years to verify tubing integrity thereafter. 5. Record wellhead pressures and rates daily and check annulus pressures weekly to ensure there is no leakage. :~?.LL DAY.'-. Casing: Shoe: tD%Ot,:,l-fD TVI)~ Dv: %3&k M~ .._TVD . o Shoe -ubinc: %~l" 3 Packer ?~C~3dqiC;L ZNTEGIt~TY - P.a~tT ~! Annulus Press Test: COEERen~S: ; !5 min .; 30 rain . .w~--~Cli~-NiC;-L iNTEGtLT_TY - PART t2 '-' Cemenu Volumes:. Ainu. Liner \%f)%x ; Csg ~O0%W. ; DV-1'-~ . Cmt vol to cover oerfs Theoretical TOC Camen~ Bond LoE (Yes or No)W~%-%% ;.,~...,I..n.., kOGCC File . CBL =valuation, -one above er~s [ "': - . - p - ~%~~ . . ' Production Log:. T~e .. : Evaluation · .~: : . CONCLUSIONS: Part fl: 800 ..... .... . .... ....... ~ . . .... ..... ( .? STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown_ Stimulate_ Plugging_ Pedorate _X Pull tubing _ Alter casing _ Repair well _ Other _ 2. Name of Operator BP Exploration, (Alaska), Inc. 3. Address P. O. Box 100360 Anchorage, AK 99510-0360 4. Location of well at surface 276' FNL, 500' FEL, Sec. 6, T11N, R14E, UM At top of productive interval 3420' FNL, 1624' FEL, SEC. 30, T12N, R14E, UM At effective depth At total depth 2479' FNL, 1632' FEL, Sec. 30, T12N, R14E, UM 5. Type of Well: Development__ Exploratow__ St ratig raph lc__ Service__X (asp's 664447, 5976785) (asp's 663133,5984175) (asp's 663102, 5985114) 6. Datum elevation (DF or KB feet) RKB 71 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number E-lOOi (Sam #1) 9. Permit number / approval number 197-188/300-265 Signed October 26, 2000 10. APl number 50-029-22819 11. Field / Pool Midnight Sun Oil Pool 12. Present well condition summar Total depth: measured true vertical Effective depth: measured true vertical Casing Length Conductor 80' Surface 4372' Intermediate 12837' Liner 1432' 13284 feet Plugs (measured) 9423 feet 11846 feet Junk (measured) 8174 feet PBTD measured @ 12370' (10/26/2000). TT Plug set @ 13023' on 1/11/1998. Size Cemented Measured Depth True vertical Depth 20" 260 sx AS 80' 80' 9-5/8" 2189 Sx PF E & 335 Sx Class G 4441' 3690' 7" 300 Sx Silicate 12906' 9072' 4-1/2" 180 Sx C~ass G 13277' 9417' Perforation depth: measured ~ue ve~cal Tubing (size, grade, & measured depth) Packers and SSSV (type & measured depth) 11665' - 11795'; (12960' - 13010' isolated below sand plug / cement cap); (13150' - 13165' isolated under 'IT Plug). 8122' - 8138'; (8047' - 9170' isolated below sand plug/cement cap); (9299' - 9313' isolated under 'Ff' Plug). 4-1/2', 12.6#, L-80 Tbg @ 11646' MD 7" X 4-1/2", BAKER SB-3 PKR @ 11620' MD; BAKER ZXP PKR @ 11852' MD. RECEIVED 4.5" HES, 'HXO' SVLN ASSEMBLY @ 2242' MD. 13. Stimulation or cement squeeze summary Intervals treated (measured) Treatment description including volumes used and final pressure 14. Representative Daily Average Production or Iniection Data DEC 07 2000 aJaska Oil & Gas Cons. Commis Prior to well operation Subsequent to operation OiI-Bbl Gas-Mm Water-Bbl - 2700 - 25000 Casing Pressure Tubing Pre~ure - 1800 1750 15. Attachments Copies of Logs and Surveys run __ Daily Report of Well Operations ___X 16. Status of well classification as: Oil __ Gas __ Suspended Service Water Ini Signed17' I hereby~certify that the fo.~n~rrect to the best ofTitle:mY knowledge.(~~+~,o~ ~. ~'~.~ Form 10-404 Rev 06/15/88 · Date Prepared by Paul Rauf 564-5'799 SUBMIT IN DUPLICATE E-100i (SAM#l) DESCRIPTION OF WORK COMPLETED PERFORATING OPERATIONS Date Event Summary 10/26/2000: 10/27/2000: 11/07/2000: 11/17/2000: RIH & tagged PBTD @ 11846' MD. RIH & set 3/8" OGLV in top GLM. MIRU ELU. PT'd equip to 3000 psi. RIH w/per[ guns & reperforated 20' @: 11775' - 11795' MD (Kuparuk Zone) Used 3-3/8" carriers & all shots @ 4 SPF, underbalanced press, 60° phasing, & random orientation. POOH w/guns - ASF. RD. MIRU ELU. PT'd equip to 3000 psi. RIH w/per[ guns & add per[orated 110' @: 11665' - 11775' MD (Kuparuk Zone) Reference Log: SWS GR/CCL 12/12/1997. Used 3-3/8" carriers & all shots @ 6 SPF, underbalanced press, & random orientation. POOH w/guns - ASF. RD. Placed water injector BOL & obtained representative injection data. RECEIVED DEC 07 2000 Alaska 0il & Gas Cons. Commission Anchorage Page I AOGCC Geological Materials Inventory PERMIT 97-188 ARCO Log 9169 C/O W/RST DEPLETE ADVISOR DIR SRVY RST 3DDT/CN 7878 7879 BH PROF CN DGR/EWR4-MD DGR/EWR4-TVD DSS/BHC/S GR/CCL DEPTH DET GYRO CONT. MULTI GYRO MULTI SHOT MUD MWD SRVY MWD SRVY PERF 1/ [q[q~-' PERF 12/19/97 PERF 12/26/97 PEX-AIT PEX-RXO/MCFL PEX-SSTVD RFT 11/13/97 RFT 11/24/97 SSTVD USIT Data C SCHLUM RST L 11650-118507 ~'/BL(C) 11600-11850 ~GYRODATA 0-13001. L 11650-11850 ~//4340-12090 ~ SPE~Y MPT/GR/EWR4 o~' SCHLUM AIT/DSI/BHC/CMR/PEX ~//4457-12106 .~'4340-12090 ~/7270-13232 ~5382-9441 ~ 3908-12112 ~TBNG GYRODATA 0-13000 ~ SCHLUM 0-13160. ~20-13282 ~R~'~ SPERRY 0-13282.00 ~SPERRY 0-13282 /'11650-12014 Off/ 13155-13165 j 13150-13155 ~ 4462-12119 ~// 4452-12116 ~ 12908-13279 11000-12112 12964-13232. 4456-12126 x~///i0650-13156 Sent Received Box 5/6/1999 5/13/1999 5/6/1999 5/13/1999 1/6/1999 1/15/1999 UIC 12/8/1998 12/14/1998 5/6/1999 5/13/1999 C 12/19/1997 12/22/1997 12/19/1997 12/22/1997 12/19/1997 12/22/1997 12/19/1997 12/22/1997 12/19/1997 12/22/1997 12/19/1997 12/22/1997 T 12/19/1997 12/22/1997 T 12/19/1997 12/22/1997 T 1/13/1998 1/15/1998 1/28/1999 1/28/1999 D 12/23/1997 1/2/1998 1 / 19/1998 1/20/1998 3/11/1998 3/12/1998 12/19/1997 12/22/1997 2/4/1998 2/11/1998 1/13/1998 1/15/1998 1/13/1998 1/15/1998 12/19/1997 12/22/l 997 T 12/19/1997 12/22/1997 12/19/1997 12/22/1997 12/19/1997 12/22/1997 12/19/1997 12/22/1997 12/19/1997 12/22/1997 12/19/1997 12/22/1997 : ~. .- _- ~ ~_._-~::- Wednesday, October 13, 1999 Page 1 of 2 Are dry ditch samples required? ~_~ yes Was the well cored? yes ~ no Are tests reqnired? .~. ~ ~yes no Well is in compliance ~ Initial Comments 1/19/1998 Daily well ops 10~21~/°7 7 no And received? ~______-..~6s Analysis description received? Received? -._ .~es no 1/20/1998 no ---~ .... ilO ._ Wednesday, October 13, 1999 Page 2 of 2 DAILY WELL OPS R Are dry ditch samples required? ye~,no And received? Was the well cored? yes ~_Analysis & description received? Are well tests required? no ..... no Well is in compliance Ini'tial COMMENTS 5/6/99 GeoQuest 3940 Arctic Blvd Anchorage, AK 99503 AI-rN: Sherrie NO. 12550 Company: Alaska Oil & Gas Cons Comm I Attn: Lori Taylor I 3001 Porcupine Drive Anchorage, AK 99501 Field: Prudhoe Bay Well Job # Log Description Date Blueline Sepia CD-R E-100 ~[' C~ ~ (~c~ 98620 EST-sIGMA 981108 1 E-100 98620 EST-SIGMA 981108 1 1 E-100 98620 C/O W/EST 981108 1 1 (~~ DATE: SIGNED: ~,l~ska (iii Please sign and return one copy of this transmittal to Sherrie at the above address or fax to (907) 562-6521. BP EXPLORATION, Alaska Date: 1/28/99 Trans~ 90207 BP/PBU SATELLITE DIRECTIONAL DATA Enclosed is the materials listed below. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4944. ISwName I Type I Date ICc IComments E-100 IGYRO I 11/08/981GYRODATA IGYRO SURVEY W/DISKETTE Please sign and return one copy of this transmittal letter. Thank-you, Gary PrebleN Petrotechnical Data Center DIRECTIO AL (~ DATA STATE REPORTS ARCO -w. Campaine DNR - T. Ryherd EXXON-D. Foster AOGCC-survey/disk ARCO-survey/disk EXXON-survey/disk DNR - survey/disk AOGCC- 1 tape/1 blueline/1 sepia ARCO- 1 tape/1 blueline/1 sepia Exxon - 1 tape/1 blueline/1 sepia DNR- 1 disk/1 blueline BP - Bret Chambers- 1 blu$1ine RECEIVED JAN 2_ 8 1990 Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 1 / 11/99 GeoQuest 3940 Arctic Blvd Anchorage, AK 99503 ATTN: Sherrie NO. 12220 Compan~ Alaska Oil & Gas Cons Comm Attn: Lori Taylor 3001 Porcupine Drive Anchorage, AK 99501 Field: Prudhoe Bay Color LIS Well Job # Log Description Date Print Sepia Tape E-100 (SAM #I) 98586 DEPLETION ADVISOR 981108 1 L(.,EiVED SIG DATE: JAN i 6 1999 o~~ ~r ~aska Oil & Gas Cons. Commi~ion Please sign ~nd return on th ~nsmiff~l to Sherrie ~t the above ~ddress. Th~nk you. ~0[age ARCO Alaska Inc. Greater Point Mclntyre Area Date: Subject: From: To: December 8, 1998 Transmittal Number 784 ARCO Alaska, Inc. GPMA Howard Oakland Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 Please find enclosed the following data for the Midnight Sun #1 (E-100), and Sambuca #1 (E-101) wells which may have not been delivered to you directly from the vendor (Gyrodata). Well Description Date Vendor Directional Survey Report, 0-13300 Directional Survey Report, 0-13001 Directional Surveys on Diskette E-100 E-101 E-100/E-101 11-6-98 Gyrodata 11-8-98 Gyrodata 11-6&8-98 Gyrodata This information is confidential and your cooperation in maintaining confidentiality is appreciated ..... ..... d return to:~.~~~:~:.~ -~- -~ , GPMA Engineering, ATO-492 ARCO Alaska, Inc. P.O. Box 100360 Anchorage, AK 99510-0360 cc: L.B. Senden ATO-480 Well Files W5-1e 7,3 PERMIT 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 ~97-188 97-188 97-188 97-188 97-188 97-188 97-188 97-188 AOGCC Individual Well Geological Materials Inventory DATA T DATA PLUS DGR/EWR4 -MD DGR/EWR4 - TVD DSS/BHC/S PEX-R_XO/MCFL PEX- SSTVD BH PROF RFT 11/24/97 3DDT/CN SSTVD CN RFT 11/13/97 PEX-AIT USIT 7878 7879 MWD SRVY GYRO MULTI SHOT MUD WELL RPT PERF PERF 12/19/97 ~/7270-13232 ~382-9441 ~3908-12112 j~4452-~rc~ 1% ~12908-13279 ~4457-12106 ~F~2964-13232 j4340-12090 ~4456-12126 ~340-~ ~ ~% ~11000-12112 4462-1~ ~5~ ~10650-13156 ~SPERRY ~SCHL~ ~P~RRY 0-13282 ~SCHL~ 0-13160. ~ 120-13282 ~EPOCH 125-13282 MPT/GR/EWR4 AIT/DSI/BHC/CMR/PEX 11650-12014 13155-13165 PERF 12/26/97 vL 13150-13155 GR/CCL DEPTH DET ~ 11250-13168 MWD SRVY ~"SPERRY 0-13282.00 Page: 1 Date: 11/25/98 RUN RECVD FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 FINAL 12/22/97 4-6 12/22/97 1-2 12/22/97 12/22/97 01/02/98 01/20/98 01/20/98 FINAL 02/11/98 FINAL 01/15/98 FINAL 01/15/98 FINAL 01/15/98 03/12/98 PERMIT DATA 10-407 AOGCC Individual Well Geological Materials Inventory T DATA PLUS ~~COMPLETION DATE ~/~ Page: 2 Date: 11/25/98 RUN RECVD BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 October 22, 1998 Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Dear Mr. McMains: Subject: Well Re-Naming The operator request the following Prudhoe Bay Satellite Wells be re-named as follows' Apl num Permit Number Current Name New Name 500292281900 97-188 500292290900 98-160 500292284600 97-239 500292284670 500292283100 97-214 500292283170 , SAM-01 E- 100 MIDSUN-01 E-101 SB-01 S~200 SB-01PB1 S-200PB1 SB-02 W-200 SB-02PB1 W-200PB1 Sincerely, Steven L. Deckert Staff Engineer, CNS-GRO SLD:mw CC: Well Files S. Copela.nd, MB 3-3 Bill Smalstig Arco Alaska John Kilcommins, Exxon Co Frank Banar, Mobil Paul Robertson, Phillips Fred O'Toole, Chevron ~ALASKA~ i;Ohti:llJi: eare. d rvIoes rilling BP Exploration / Arco To: Alaska Oil & Gas Conservation Commission Date: March 31, 1998 Fro rn: Subject: Terrie Hubble Technical Assistant Permit #97-188, Sam #1 Enclosed, in duplicate, are revised copies of the above listed Well Completion Report and Log. The Pad Engineer noticed that I had not recorded well testing information (Section 27), which I have now included. The well histories and logs have previously been filed with the Commission and there are no changes. Thank you. /tlh Gas Cons. '- '"" A~ch0rage STATE OF ALASKA BONju"IiLiENi-i/ L ALASKA OIL AND GAS CONSERVATION COMMISSION REVISED: 02/17/98 WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well [~ Oil [] Gas E~ Suspended [] Abandoned [~] Service 2. Na~me of Operator 7. Permit Number BP Exploration (Alaska)Inc. 97-188 3. Address i~ ? i .... ~ ! ~ ? .!~ ?~. 8. APl Number P.O. Box 196612, Anchorage, Alaska 99519-6612 ~ '''~ ~- ' ~ ' ' 50-029-22819 4. Location of well at surface , , 9. Unit or Lease Name 5001'NSL, 500'WEL, SEC. 06, T11N, R14E, UM "'":'.' ¢','i ~Tt4:~,~: Prudhoe Bay Unit , .. : . -,.. ~..*t~j;~l~jF11~ At top of productive interval ' ~_"~:~'_ 10. Well Number 1858' NSL, 1624' WEL, SEC. 30, T12N, R14E, UM ., . I&~ Sam #1 At total depth -~,i~_,~-',~:;.~ t), ....~,.~q0ra,~; ..... ~'""u':'t~"~~'~I!~.,: ~ 11 . Field and Pool 2800' NSL, 1653' WEL, SEC. 30, T12N, R14E, UM '-""..' '.' ~ Prudhoe Bay Field / Sambucca Pool 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Serial No. Prudhoe Bay Field / Midnight Sun Pool KBE = 71'I ADL 028299 12. Date Spudded 113. DateT. D. Reached I 14. DateComp., Susp., or Aband.ll 5. Water depth, if offshore 16. No. of Completions 10/25/97I 11/23/97I 12/20/97I N/A MSL One 17. Total Depth (MD+TVD) 118. Plug Back Depth (MD+TVD) 19. Directional Survey 120. Depth where SSSV set121. Thickness of Permafrost 13282 9423 FTI 13189 9337 FT [~Yes I--INoI (Nipple) 2242' MDI 1900' (Approx.) 22. Type Electric or Other Logs Run MWD, DIR, GR, RES, RES / AlT, DT / BHC, CNL, LDL, GR, Caliper, SP, MRES, CMR, RFT, BHC Sonic, CBL, USlT 23. CASING, LINER AND CEMENTING RECORD CASING S E ,-FI-lNG DEPTH HOLE SIZE WT. PER FT. GRADE TOP DO'lq'OM SIZE CEMENTING RECORD AMOUNT PULLED 20" 91.5 H-40 Surface 80' 30" 260 sx Arctic Set (Approx.) 9-5/8" 47# L-80 35' 4441' 12-1/4" _~189 sx PF 'E', 335 sx Class 'G' 7" 29# L-80 33' 12906' 8-1/2" 300 sx Silicalite 4-1/2" 12.6# L-80 11845' 13277' 6" 180 sx Class 'G' 24. Perforations open to Production (MD+TVD of Top and 25. TUBING RECORD Bottom and interval, size and number) S~ZE DEPTH SET (MD) PACKER SET (MD) 2-1/2" Gun Diameter, 4 spf 2-1/2" Gun Diameter, 6 spf 4-1/2", 12.6#, L-80 11646' 11620' MD TVD MD TVD Kuparuk Sands Ivishak Sands 26. AC~D, FRACTURE, CEMENT SQUEEZE, ETC. 11775' - 11795' 8122' - 8136' 13150' - 13165' 9299' - 9313' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11775' - 1 1795' ROPE perf with 8500 psi Nitrogen ORIGINAL XXN plug set in 13150' - 13165' ROPE perf with 8500 psi Nitrogen XN Nipple at 13025' Freeze Protect with 75 Bbls of Diesel 27. PRODUCTION TEST Date First Production IMethod of Operation (Flowing, gas lift, etc.) Exploration Ballot Testing * I Flowing from Kuparuk Sands - Exploration Ballot Testing Date of Test Hours Tested IPRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE I GAS-OIL RATIO 2/7/98 13 tTEST PERIOD 2280 BO 837 MSCFG 0 BW 46/64 inI 376 MSCFG/STBO Flow Tubing Casing Pressure 1CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (CoRR) Press. 660'. 620 ~_4-HOuR RATE 4113 BOPD 1545 MSCFG 0 BWPD 29 28. CORE DATA , Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. · Exploration Ballot Testing: 12/20/97 Ivishak Testing, 01/20/98 Kuparuk Testing Kuparuk Reservoir: Upper zone, fine to medium grained siderite cemented sandstone with good gas and oil shows. Lower zone, fine to coarse grained sands with good visible porosity and good oil and gas shows. Ivishak Reservoir: Coarse sandstone and conglomerates, poorly sorted with up to 60% chert and good visible porosity. Moderate gas and oil shows. Form 10-407 Rev. 07-01-80 Submit In Duplicate 29. Geologic Markers 30. Formation Tests Measured True Vertical Include interval tested, pressure data, all fluids Marker Name Depth Depth recovered and gravity, GOR, and time of each phase. Top of Kuparuk 11494' 7934' Ivishak Test 12/28/97 Flowing on 48/64th choke @ 248 psig for 15 hours: Base of Kuparuk 11658' 8041' 739 BO (APl=24), 120 BW, 368 MSCFG (SG=0.72). Sag River 12957' 9119' Kuparuk Test 2/7/98 Flowing on 46/64th choke @ 660 psig for 13 hours: Shublik 13011' 9169' 2228 BO (APl=29), 0 BW, 837 MSCFG (SG:0.7). Sadlerochit 13069' 9223' 21. List of Attachments Summary of Daily Drilly Repo/rts, S~eys 32. I hereby certify th!t ,~/~/~ ~'~ ? i~t oreg n ,'i rue and correct to the best of my knowledge ~ / Signed Tim A. Burns~d ¥¥ ~ ~' N ~ ~' ' Title Senior Prillin9 Engineer Date ~' / ~ ~' Sam #1- 97-188 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No. / Approval No. INSTRUCTIONS (,~ENERAL: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. ITEM 1-' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. ITEM 5.' Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. ITEM 16 AND 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. ITEM 21.' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). ITEM 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 27-' Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, Other-explain. ITEM 28: If no cores taken, indicate 'none'. Form 10-407 Rev. 07-01-80 Operator BP Exploration Performance Enquiry Report Date 20:46, 30 Jan 98 Formation Integrity Test Report Page The analysis is from - 00:00, 02 Nov 97 - to - 19:30, 21 Nov 97 Programs in Result Table: Sambuca Wel 1 Type Sambuca Event Sambuca Event Time From Time To 00:00, 02 Nov 97 00:00, 02 Nov 97 19:30, 21 Nov 97 19:30, 21 Nov 97 Duration Description E.M.W.(equivalent mud weight) 0 hr 0 min Obtained leak off 12.5 0 hr 0 min Obtained leak off 14.8 Depth MDR 5000.0 13009.0 Hole Size MDR 8-1/2 6 Facility PB E Pad Progress Report Well Sambuca Rig Doyon#9 Page Date 1 30 January 98 Date/Time 25 Oct 97 26 Oct 97 27 Oct 97 28 Oct 97 29 Oct 97 30 Oct 97 00:00-00:30 00:30-06:00 06:00-07:00 07:00-10:00 10:00-12:00 12:00-12:30 12:30-15:30 15:30-16:00 16:00-16:30 16:30-17:00 17:00-00:00 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-00:00 00:00-00:30 00:30-01:00 01:00-02:00 02:00-03:00 03:00-04:00 04:00-06:00 06:00-12:00 12:00-12:30 12:30-00:00 00:00-00:30 00:30-02:30 02:30-03:30 03:30-04:00 04:00-06:00 06:00-12:00 12:00-12:30 12:30-00:00 00:00-00:30 00:30-03:00 03:00-04:00 04:00-05:30 05:30-06:00 06:00-07:00 07:00-09:30 09:30-10:30 10:30-13:00 13:00-13:30 13:30-14:00 14:00-15:00 15:00-15:30 15:30-23:30 23:30-00:00 00:00-00:30 00:30-03:00 03:00-04:00 04:00-04:30 04:30-06:00 06:00-07:00 Duration 1/2 hr 5-1/2 hr 1 hr 3 hr 2 hr 1/2 hr 3 hr 1/2 hr 1/2 hr 1/2 hr 7 hr 1/2 hr 5-1/2 hr 6 hr 1/2 hr 11-1/2 hr 1/2 hr 1/2 hr 1 hr 1 hr lhr 2 hr 6 hr 1/2 hr 11-1/2 hr 1/2 hr 2 hr 1 hr 1/2 hr 2 hr 6 hr 1/2 hr 11-1/2 hr 1/2 hr 2-1/2 hr 1 hr 1-1/2 hr 1/2 hr lhr 2-1/2 hr 1 hr 2-1/2 hr 1/2hr 1/2 hr lhr 1/2 hr 8 hr 1/2 hr 1/2 hr 2-1/2 hr 1 hr 1/2 hr 1-1/2 hr 1 hr Activity Held safety meeting Rig moved 95.00 % Rig moved 100.00 % (cont...) Rigged up Divertor Installed Service lines Held safety meeting Made up BHA no. 1 Held safety meeting Tested Divertor Functioned M.W.D. tool Drilled to 420.0 ft Held safety meeting Drilled to 750.0 ft Drilled to 1017.0 ft (cont...) Held safety meeting Drilled to 1550.0 ft Held safety meeting Drilled to 1630.0 ft Pulled out of hole to 200.0 ft Pulled BHA Made up BHA no. 1 R.I.H. to 1630.0 ft Drilled to 1867.0 ft Held safety meeting Drilled to 2750.0 ft Held safety meeting Drilled to 3000.0 ft Pulled out of hole to 1600.0 ft R.I.H. to 3000.0 ft Drilled to 3120.0 ft Drilled to 3438.0 ft (cont...) Held safety meeting Drilled to 4200.0 ft Held safety meeting Drilled to 4445.0 ft Circulated at 4445.0 ft Pulled out of hole to 1092.0 ft R.I.H. to 1600.0 ft R.I.H. to 4445.0 ft (cont...) Circulated at 4445.0 ft Pulled out of hole to 1092.0 ft Pulled BHA Held safety meeting Removed Drillfloor / Derrick Rigged up Casing handling equipment Held safety meeting Ran Casing to 3428.0 ft (9-5/8in OD) Washed to 3469.0 ft Held safety meeting Ran Casing to 4445.0 ft (9-5/8in OD) Circulated at 4445.0 ft Laid down 82.0 ft of Casing Circulated at 4445.0 ft Circulated at 4441.0 ft (cont...) Facility PB E Pad Progress Report Well Sambuca Page Rig Doyon #9 Date 2 30 January 98 Date/Time 31 Oct 97 01 Nov 97 02 Nov 97 03 Nov 97 07:00-07:30 07:30-08:00 08:00-09:00 09:00-12:30 12:30-13:00 13:00-15:00 15:00-15:30 15:30-16:30 16:30-18:00 18:00-20:30 20:30-00:00 00:00-00:30 00:30-03:00 03:00-03:30 03:30-06:00 06:00-07:30 07:30-08:00 08:00-10:30 10:30-11:30 11:30-12:30 12:30-13:00 13:00-06:00 06:00-13:30 13:30-14:00 14:00-15:00 15:00-16:00 16:00-16:30 16:30-19:00 19:00-20:00 20:00-21:00 21:00-22:15 22:15-22:30 22:30-23:30 23:30-00:00 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-13:00 13:00-13:30 13:30-14:00 14:00-14:30 14:30-00:00 00:00-00:30 00:30-03:30 03:30-04:00 04:00-04:30 04:30-05:00 05:00-06:00 06:00-12:00 12:00-12:30 12:30-16:00 16:00-18:00 18:00-18:15 Duration 1/2 hr 1/2 hr 1 hr 3-1/2 hr 1/2 hr 2 hr 1/2 hr 1 hr 1-1/2 hr 2-1/2 hr 3-1/2 hr 1/2 hr 2-1/2 hr 1/2 hr 2-1/2 hr 1-1/2 hr 1/2 hr 2-1/2 hr 1 hr 1 hr 1/2hr 17hr 7-1/2 hr 1/2 hr 1 hr lhr 1/2 hr 2-1/2 hr 1 hr 1 hr 1-1/4 hr 1/4 hr lhr 1/2 hr 1/2 hr 5-1/2 hr 6 hr 1/2 hr 1/2 hr 1/2 hr 1/2 hr 1/2 hr 9-1/2 hr 1/2 hr 3 hr 1/2 hr 1/2 hr 1/2 hr 1 hr 6 hr 1/2 hr 3-1/2 hr 2 hr 1/4 hr Activity Mixed and pumped slurry - 196.000 bbl Displaced slurry - 319.000 bbl Held 1500.0 psi pressure on 1.000 bbl squeezed cement Circulated at 2277.0 ft Held safety meeting Mixed and pumped slurry - 720.000 bbl Displaced slurry - 166.000 bbl Cleared Flowline Rigged down Handling equipment Removed Divertor Installed Casing head Held safety meeting Installed BOP stack Rigged up High pressure lines Tested BOP stack Tested BOP stack (cont...) Rigged down High pressure lines Made up BHA no. 2 R.I.H. to 1040.0 ft Serviced Block line Held safety meeting Rig waited: Assessed situation Rig waited: Assessed situation (cont...) R.I.H. to 2240.0 ft Drilled cement to 2240.0 ft R.I.H. to 4082.0 ft Held drill (Kick (well kill)) Drilled cement to 4345.0 ft Circulated at 4345.0 ft Tested Casing Drilled cement to 4444.0 ft Drilled to 4465.0 ft Circulated at 4465.0 ft Performed formation integrity test Held safety meeting Drilled to 5000.0 ft Drilled to 5000.0 ft (cont...) Held safety meeting Drilled to 5513.0 ft Circulated at 5513.0 ft Pulled out of hole to 4420.0 ft R.I.H. to 5500.0 ft Drilled to 6177.0 ft Held safety meeting Drilled to 6526.0 ft Circulated at 6526.0 ft Pulled out of hole to 6526.0 ft R.I.H. to 6456.0 ft Drilled to 6620.0 ft Drilled to 6969.0 ft (cont...) Held safety meeting Drilled to 7268.0 ft Circulated at 7268.0 ft Pulled out of hole to 6955.0 fl Facility PB E Pad Progress Report Well Sambuca Page 3 Rig Doyon#9 Date 30 January 98 Date/Time 04 Nov 97 05 Nov 97 06 Nov 97 07 Nov 97 08 Nov 97 09 Nov 97 18:15-18:30 18:30-19:30 19:30-23:00 23:00-00:00 00:00-00:30 00:30-03:00 03:00-06:00 06:00-06:30 06:30-12:00 12:00-12:30 12:30-15:00 15:00-15:30 15:30-15:45 15:45-16:00 16:00-00:00 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-13:00 13:00-13:45 13:45-14:30 14:30-15:00 15:00-00:00 00:00-00:30 00:30-06:00 06:00-09:00 09:00-10:00 10:00-10:30 10:30-11:00 11:00-12:00 12:00-12:30 12:30-00:00 00:00-00:30 00:30-02:30 02:30-03:30 03:30-04:00 04:00-04:30 04:30-06:00 06:00-12:00 12:00-12:30 12:30-22:00 22:00-23:00 23:00-23:30 23:30-00:00 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-15:30 15:30-16:30 16:30-02:00 02:00-06:00 Duration 1/4 hr 1 hr 3-1/2 hr 1 hr 1/2 hr 2-1/2 hr 3 hr 1/2 hr 5-1/2 hr 1/2 hr 2-1/2 hr 1/2 hr 1/4 hr 1/4 hr 8 hr 1/2 hr 5-1/2 hr 6hr 1/2 hr 1/2 hr 3/4 hr 3/4 hr 1/2 hr 9 hr 1/2 hr 5-1/2 hr 3 hr lhr 1/2 hr 1/2 hr lhr 1/2 hr 11-1/2 hr 1/2 hr 2 hr 1 hr 1/2 hr 1/2 hr 1-1/2 hr 6hr 1/2 hr 9-1/2 hr lhr 1/2 hr 1/2 hr 1/2 hr 5-1/2 hr 6 hr 1/2 hr 3 hr 1 hr 9-1/2 hr 4 hr Activity R.I.H. to 7268.0 ft Circulated at 7268.0 ft Pulled out of hole to 1050.0 fl Pulled BHA Held safety meeting Made up BHA no. 3 R.I.H. to 7200.0 ft R.I.H. to 7260.0 ft (cont...) Drilled to 7553.0 fl Held safety meeting Drilled to 7773.0 ft Circulated at 7.0 ft Pulled out of hole to 7200.0 ft R.I.H. to 7773.0 ft Drilled to 8086.0 fi Held safety meeting Drilled to 8440.0 ft Drilled to 8685.0 ft (cont...) Held safety meeting Drilled to 8780.0 fl Circulated at 8780.0 ft Pulled out of hole to 7700.0 ft R.I.H. to 8780.0 ft Drilled to 9129.0 ft Held safety meeting Drilled to 9550.0 fl Drilled to 9732.0 ft (cont...) Circulated at 9732.0 ft Pulled out of hole to 8700.0 ft R.I.H. to 9732.0 ft Drilled to 9764.0 ft Held safety meeting Drilled to 10579.0 fl Held safety meeting Drilled to 10758.0 ft Circulated at 10758.0 ft Pulled out of hole to 9688.0 ft R.I.H. to 10718.0 ft Drilled to 10840.0 ft Drilled to 11148.0 fl (cont...) Held safety meeting Drilled to 11715.0 ft Circulated at 11715.0 ft Pulled out of hole to 10724.0 ft R.I.H. to 11670.0 ft Held safety meeting Drilled to 11830.0 ft Drilled to 12002.0 ft (cont...) Held safety meeting Drilled to 12129.0 ft Circulated at 12129.0 ft Logged hole with LWD: Formation evaluation (FE) from 11835.0 ft to 10950.0 ft Pulled out of hole to 4400.0 ft Facility PB E Pad Progress Report Well Sambuca Page Rig Doyon # 9 Date 4 30 January 98 Date/Time 10 Nov 97 11 Nov 97 12 Nov 97 13 Nov 97 14 Nov 97 06:00-09:00 09:00-12:00 12:00-12:30 12:30-16:30 16:30-19:00 19:00-20:30 20:30-00:00 00:00-00:30 00:30-05:00 05:00-06:00 06:00-09:00 09:00-10:30 10:30-12:00 12:00-12:30 12:30-20:00 20:00-21:30 21:30-00:00 00:00-00:30 00:30-06:00 06:00-12:30 12:30-13:00 13:00-14:00 14:00-16:30 16:30-17:30 17:30-19:00 19:00-20:00 20:00-21:30 21:30-06:00 06:00-13:30 13:30-22:30 22:30-23:00 23:00-00:00 00:00-00:30 00:30-02:30 02:30-04:30 04:30-05:30 05:30-06:00 06:00-07:30 07:30-08:30 08:30-12:00 12:00-12:30 12:30-13:30 13:30-18:30 18:30-20:30 20:30-00:00 00:00-00:30 00:30-03:00 03:00-05:00 05:00-06:00 06:00-10:00 10:00-12:00 12:00-12:30 12:30-15:30 15:30-22:30 Duration 3 hr 3 hr 1/2 hr 4 hr 2-1/2 hr 1-1/2 hr 3-1/2 hr 1/2 hr 4-1/2 hr 1 hr 3 hr 1-1/2 hr 1-1/2 hr 1/2 hr 7-1/2 hr 1-1/2 hr 2-1/2 hr 1/2 hr 5-1/2 hr 6-1/2 hr 1/2 hr lhr 2-1/2 hr 1 hr 1-1/2 hr 1 hr 1-1/2 hr 8-1/2 hr 7-1/2 hr 9 hr 1/2 hr 1 hr 1/2 hr 2hr 2 hr 1 hr 1/2 hr 1-1/2 hr 1 hr 3-1/2 hr 1/2 hr 1 hr 5hr 2 hr 3-1/2 hr 1/2 hr 2-1/2 hr 2 hr 1 hr 4 hr 2 hr 1/2 hr 3 hr 7 hr Activity R.I.H. to 12050.0 ft Circulated at 12129.0 ft Held safety meeting Pulled out of hole to 1067.0 ft Pulled BHA Rigged up High pressure lines Tested BOP stack Held safety meeting Conducted electric cable operations Conducted electric cable operations Conducted electric cable operations (cont...) Conducted electric cable operations Ran logs on tubulars Held safety meeting Ran logs on tubulars Rigged up sub-surface equipment - Downhole tools Conducted electric cable operations Held safety meeting Conducted electric cable operations Conducted electric cable operations (cont...) Held safety meeting Conducted electric cable operations Pulled out of hole to 4441.0 ft Serviced Block line Pulled out of hole to 90.0 ft Conducted electric cable operations Tested BOP stack Conducted electric cable operations Conducted electric cable operations (cont...) Ran logs on tubulars Circulated at 8187.0 ft Pulled out of hole to 7232.0 ft Held safety meeting Pulled out of hole to 4441.0 ft Circulated at 4441.0 ft R.I.H. to 6311.0 ft Circulated at 6311.0 ft Circulated at 6311.0 ft (cont...) R.I.H. to 8208.0 ft Circulated at 8208.0 ft Held safety meeting R.I.H. to 11049.0 ft Circulated at 11049.0 ft Ran logs on tubulars Ran logs on tubulars Held safety meeting Ran logs on tubulars Rigged down sub-surface equipment - Formation logs Pulled out of hole to 9500.0 fl Pulled out of hole to 100.0 ft (cont...) Rigged down sub-surface equipment - Downhole measurement tools Held safety meeting Made up BHA no. 4 R.I.H. to 12092.0 ft Facility PB E Pad Progress Report Well Sambuca Rig Doyon # 9 Page Date 5 30 January 98 Date/Time 22:30-00:00 15 Nov 97 00:00-00:30 00:30-01:30 01:30-05:30 05:30-06:00 06:00-12:00 12:00-12:30 12:30-00:00 16 Nov 97 00:00-00:30 00:30-06:00 06:00-12:00 12:00-12:30 12:30-16:00 16:00-17:00 17:00-18:00 18:00-19:30 19:30-20:30 20:30-21:30 21:30-00:00 17 Nov 97 00:00-00:30 00:30-06:00 06:00-07:30 07:30-11:00 11:00-11:30 11:30-12:00 12:00-12:30 12:30-13:30 13:30-14:00 14:00-15:00 15:00-15:30 15:30-20:30 20:30-21:00 21:00-00:00 18 Nov 97 00:00-00:30 00:30-06:00 06:00-08:00 08:00-08:15 08:15-09:00 09:00-09:15 09:15-09:30 09:30-09:45 09:45-10:00 10:00-10:30 10:30-11:30 11:30-12:00 12:00-12:30 12:30-13:30 13:30-14:00 14:00-15:30 15:30-16:30 16:30-21:30 21:30-23:30 23:30-00:00 19 Nov 97 00:00-00:30 Duration 1-1/2 hr 1/2 hr 1 hr 4 hr 1/2 hr 6 hr 1/2 hr 11-1/2 hr 1/2 hr 5-1/2 hr 6 hr 1/2 hr 3-1/2 hr 1 hr t hr 1-1/2 hr lhr lhr 2-1/2 hr 1/2 hr 5-1/2 hr 1-1/2 hr 3-1/2 hr 1/2 hr 1/2 hr 1/2 hr 1 hr 1/2 hr 1 hr 1/2 hr 5 hr 1/2 hr 3 hr 1/2hr 5-1/2 hr 2 hr 1/4 hr 3/4 hr 1/4 hr 1/4 hr 1/4 hr 1/4 hr 1/2 hr 1 hr 1/2 hr 1/2 hr 1 hr 1/2 hr 1-1/2 hr I hr 5 hr 2 hr 1/2 hr 1/2 hr Activity Washed to 12092.0 ft Held safety meeting Laid down 186.0 ft of 5in OD drill pipe Washed to 12129.0 ft Drilled to 12140.0 ft Drilled to 12275.0 ft (cont...) Held safety meeting Drilled to 12519.0 ft Held safety meeting Drilled to 12625.0 ft Drilled to 12750.0 fl (cont...) Held safety meeting Drilled to 12860.0 ft Circulated at 12860.0 ft Drilled to 12915.0 ft Circulated at 12915.0 ft Pulled out of hole to 11441.0 ft R.I.H. to 12915.0 ft Circulated at 12915.0 ft Held safety meeting Pulled out of hole to 3000.0 ft Pulled out of hole to 1059.0 ft (cont...) Pulled BHA Retrieved Wear bushing Rigged up Top ram Held safety meeting Rigged up Top ram Tested Top ram Rigged up Casing handling equipment Held safety meeting Ran Casing to 4395.0 ft (7in OD) Circulated at 4395.0 ft Ran Casing to 5765.0 ft (7in OD) Held safety meeting Ran Casing to 7in (11900.0 ft OD) Ran Casing to 12899.0 ft (7in OD) (cont...) Rigged up Casing hanger Circulated at 12899.0 ft Rigged up Cement head Tested Chicksan lines Tested Chicksan lines Pumped Water spacers - volume 70.000 bbl Mixed and pumped slurry - 109.000 bbl Displaced slurry - 466.500 bbl Rigged down Cement head Held safety meeting Installed Seal assembly Removed Casing handling equipment Freeze protect well - 60.000 bbl of Diesel Rigged up Top ram Tested BOP stack Laid down 1050.0 ft of Drillpipe Serviced Draw works Held safety meeting Facility Date/Time 20 Nov 97 21 Nov 97 22 Nov 97 23 Nov 97 Progress Report PB E Pad Well Sambuca Page 6 Rig Doyon#9 Date 30 January 98 00:30-01:30 01:30-03:30 03:30-04:30 04:30-06:00 06:00-11:00 11:00-12:00 12:00-12:30 12:30-13:15 13:15-13:30 13:30-23:00 23:00-01:00 01:00-03:00 03:00-06:00 06:00-18:00 18:00-18:30 18:30-19:00 19:00-20:00 20:00-06:00 06:00-06:30 06:30-07:30 07:30-10:30 10:30-11:15 11:15-12:00 12:00-12:30 12:30-13:00 13:00-13:30 13:30-14:30 14:30-15:30 15:30-17:00 17:00-18:30 18:30-19:30 19:30-23:30 23:30-00:00 00:00-00:30 00:30-05:00 05:00-06:00 06:00-08:30 08:30-12:00 12:00-12:30 12:30-13:00 13:00-16:00 16:00-18:00 18:00-00:00 00:00-00:30 00:30-06:00 06:00-09:30 09:30-11:00 11:00-14:30 14:30-15:00 15:00-16:00 16:00-16:30 16:30-17:00 17:00-22:30 Duration 1 hr 2 hr 1 hr 1-1/2 hr 5 hr 1 hr 1/2 hr 3/4 hr 1/4 hr 9-1/2 hr 2 hr 2 hr 3 hr 12hr 1/2 hr 1/2 hr 1 hr 10hr 1/2 hr 1 hr 3 hr 3/4 hr 3/4 hr 1/2 hr 1/2 hr 1/2 hr 1 hr 1 hr 1-1/2 hr 1-1/2 hr 1 hr 4 hr 1/2 hr 1/2 hr 4-1/2 hr lhr 2-1/2 hr 3-1/2 hr 1/2 hr 1/2 hr 3 hr 2 hr 6 hr 1/2 hr 5-1/2 hr 3-1/2 hr 1-1/2 hr 3-1/2 hr 1/2 hr 1 hr 1/2 hr 1/2 hr 5-1/2 hr Activity Laid down 2244.0 ft of Drillpipe Installed Kelly Tested Kelly Made up BHA no. 5 Made up BHA no. 5 (cont...) Singled in drill pipe to 200.0 fl Held safety meeting Singled in drill pipe to 1130.0 fl Tested M.W.D. tool - Via string Singled in drill pipe to 12648.0 ft Washed to 12821.0 ft Circulated at 12821.0 ft Held safety meeting Held safety meeting (cont...) Worked toolstring at 12800.0 ft Held safety meeting Serviced Block line Laid down 9700.0 ft of 5in OD drill pipe Held safety meeting Laid down 9450.0 ft of 5in OD drill pipe Circulated at 12821.0 ft Tested Casing - Via annulus and string Held drill (Stripping) Held drill (Accumulator) Held safety meeting Drilled installed equipment - Float collar Drilled cement to 12904.0 ft Drilled installed equipment - Float shoe Drilled to 12935.0 ft Circulated at 12935.0 ft Performed formation integrity test Circulated at 12935.0 ft Serviced Draw works Held safety meeting Drilled to 13009.0 ft Circulated at 13009.0 ft Circulated at 13009.0 ft (cont...) Circulated at 13009.0 ft Held safety meeting Circulated at 13009.0 ft Drilled to 13168.0 ft Circulated at 13049.0 ft Drilled to 13168.0 ft Held safety meeting Drilled to 13240.0 ft Drilled to 13282.0 ft (cont...) Circulated at 13282.0 ft Logged hole with LWD: Formation evaluation (FE) from 13282.0 ft to 12906.0 ft R.I.H. to 13282.0 ft Circulated at 13282.0 ft Pulled out of hole to 12906.0 ft Flow check Pulled out of hole to 200.0 ft Facility PB E Pad Progress Report Well Sambuca Page Rig Doyon # 9 Date 7 30 January 98 Date/Time 24 Nov 97 25 Nov 97 26 Nov 97 27 Nov 97 22:30-23:00 23:00-00:00 00:00-00:30 00:30-01:00 01:00-03:00 03:00-06:00 06:00-06:30 06:30-07:30 07:30-09:30 09:30-10:30 10:30-12:00 12:00-12:30 12:30-18:00 18:00-18:30 18:30-19:00 19:00-00:00 00:00-00:30 00:30-05:00 05:00-06:00 06:00-06:30 06:30-07:00 07:00-07:30 07:30-09:00 09:00-12:00 12:00-12:30 12:30-14:00 14:00-14:30 14:30-15:00 15:00-22:00 22:00-05:30 05:30-06:00 06:00-07:30 07:30-12:00 12:00-12:30 12:30-14:30 14:30-15:00 15:00-15:30 15:30-18:30 18:30-21:00 21:00-21:30 21:30-22:00 22:00-00:00 00:00-00:30 00:30-03:00 03:00-06:00 06:00-09:00 09:00-10:00 10:00-11:00 11:00-12:00 12:00-12:30 12:30-13:30 13:30-14:00 14:00-14:30 14:30-15:00 Duration 1/2 hr 1 hr 1/2 hr 1/2 hr 2 hr 3 hr 1/2 hr 1 hr 2 hr 1 hr 1-1/2 hr 1/2 hr 5-1/2 hr 1/2 hr 1/2 hr 5hr 1/2 hr 4-1/2 hr lhr 1/2 hr 1/2 hr 1/2 hr 1-1/2 hr 3 hr 1/2 hr 1-1/2 hr 1/2 hr 1/2 hr 7hr 7-1/2 hr 1/2 hr 1-1/2 hr 4-1/2 hr 1/2 hr 2hr 1/2 hr 1/2 hr 3hr 2-1/2 hr 1/2 hr 1/2 hr 2 hr 1/2 hr 2-1/2 hr 3 hr 3 hr 1 hr 1 hr 1 hr 1/2 hr l hr 1/2 hr 1/2 hr 1/2 hr Activity Pulled BHA Downloaded MWD tool Held safety meeting Pulled BHA Rigged up Logging/braided cable equipment Conducted electric cable operations Conducted electric cable operations (cont...) Conducted electric cable operations Conducted electric cable operations Made up BHA no. 6 R.I.H. to 1500.0 ft Held safety meeting R.I.H. to 12850.0 ft Circulated at 12850.0 fl R.I.H. to 13123.0 ft Reamed to 13215.0 ft Held safety meeting Reamed to 13256.0 ft Circulated at 13256.0 fl Pulled out of hole to 12850.0 ft Flow check R.I.H. to 13258.0 ft Circulated at 13258.0 ft Pulled out of hole to 3500.0 ft Held safety meeting Pulled out of hole to 50.0 ft Pulled BHA Held safety meeting Conducted electric cable operations Conducted electric cable operations Test Logging/braided cable equipment unit Test Logging/braided cable equipment unit (cont...) Conduct braided cable operations - 5/16 size cable Held safety meeting Conduct braided cable operations - 5/16 size cable Conduct braided cable operations - 5/16 size cable Serviced Drillfloor / Derrick Rigged up Casing handling equipment Ran Liner to 1400.0 ft (4-1/2in OD) Rigged up Tubing handling equipment Rig waited: Equipment Ran Tubing to 1309.0 ft (4-1/2in OD) Held safety meeting Ran Tubing to 1309.0 ft (4-1/2in OD) Ran Drillpipe in stands to 5000.0 ft Ran Drillpipe in stands to 12896.0 ft (cont...) Circulated at 12896.0 ft Ran Drillpipe in stands to 13277.0 ft Circulated at 13277.0 ft Held safety meeting Circulated at 13277.0 ft Mixed and pumped slurry - 35.000 bbl Displaced slurry - 87.500 bbl Retrieved downhole equipment - Liner hanger Facility Date/Time 28 Nov 97 29 Nov 97 30 Nov 97 Progress Report PB E Pad Well Sambuca Rig Doyon # 9 Page 8 Date 30 January 98 15:00-17:30 17:30-18:00 18:00-19:00 19:00-21:30 21:30-22:30 22:30-23:30 23:30-00:00 00:00-00:30 00:30-06:00 06:00-09:30 09:30-10:00 10:00-11:30 11:30-12:00 12:00-12:30 12:30-13:00 13:00-16:30 16:30-17:30 17:30-23:30 23:30-00:00 00:00-00:30 00:30-03:00 03:00-03:30 03:30-06:00 06:00-12:00 12:00-12:30 12:30-13:30 13:30-14:30 14:30-18:30 18:30-19:30 19:30-23:30 23:30-00:00 00:00-00:30 00:30-01:30 01:30-02:00 02:00-04:30 04:30-06:00 06:00-07:00 07:00-10:00 10:00-12:00 Duration 2-1/2 hr 1/2 hr 1 hr 2-1/2 hr 1 hr 1 hr 1/2 hr 1/2 hr 5-1/2 hr 3-1/2 hr 1/2 hr 1-1/2 hr 1/2 hr 1/2 hr 1/2 hr 3-1/2 hr 1 hr 6 hr 1/2 hr 1/2 hr 2-1/2 hr 1/2 hr 2-1/2 hr 6 hr 1/2 hr 1 hr 1 hr 4 hr 1 hr 4 hr t/2 hr 1/2 hr lhr 1/2 hr 2-1/2 hr 1-1/2 hr 1 hr 3 hr 2 hr Activity Circulated at 13176.0 ft Cleared Cement head Laid down 1344.0 ft of 3-1/2in OD drill pipe Circulated at 11836.0 ft Serviced Block line Laid down 1300.0 ft of 3-1/2in OD drill pipe Serviced Drillfloor / Derrick Held safety meeting Laid down 9000.0 ft of 3-1/2in OD drill pipe Laid down 11000.0 ft of 3-1/2in OD drill pipe (cont...) Laid down 40.0 ft of Tubing Laid down 1390.0 ft of Tubing Retrieved Bore protector Held safety meeting Rigged up High pressure lines Tested BOP stack Tested Casing Conducted electric cable operations Conducted electric cable operations Held safety meeting Conducted electric cable operations Rigged up Tubing handling equipment Ran Tubing to 4-1/2in (2000.0 ft OD) Ran Tubing to 8800.0 ft (4-1/2in OD) (cont...) Held safety meeting Ran Tubing to 9436.0 ft (4-1/2in OD) Installed SCSSSV nipple assembly Ran Tubing to 11616.0 ft (4-1/2in OD) Installed Tubing hanger Circulated at 11646.0 ft Tested Tubing Held safety meeting Tested Casing Removed High pressure lines Removed BOP stack Installed Xmas tree primary components Retrieved Hanger plug Freeze protect well - 75.000 bbl of Diesel Installed Xmas tree primary components olruator. Baker, "CAC' !ih, amd: FMC, 1t', 8,000 psi :Sam #1 KB Elev -- 65,0' BF Elev = 33.95' P. 21~1 Dul/'2', 12.6 ~ L-80, Ettm A/B Mod bing = 3.958" L-80, B[rs A/B Mod Hole Ang!e - 60.7° ~ 3,940' 4-I/'2' $$$V Landing Nil~e I-,1~$, "HXO", :~.$13' ID Gas Lift Mandrels Camco, KBG-2.LS, 1" Pocket MI~BKBi TVDss Dqv. 3,401' 47.2' 5 5,101' 53.4° 4 6,751' 52.2' 13 8,441' 53.4' 2 10,084' 51.9' 1 11.533' 52.9' Top of 4-1/2" Liner (5.25' ID Tie Back 81acre L-80. Btm NB Mod ,P. erforafien Summary RE'FLOG: ????/GR [11/24/97) SIZE BPF I~AL 8TATU$ q i i '-'/"/~'- i i ,.lq 5'"' 0p_e,~ q 1 31 So - I~JISS' oPeN' , I= ,= II I 'X'; Nil;h~ t13" ID P_~UDH_O_F.. BAY UN_I~ __Wa.L-_ _S, tm_m Ap! N~; I0.02t.22St9 Se~ O6, T11N. R14E ! ! ..... BP Exploration (Alaska) #1 Chronoloav of Well E , ts -- - DATE Operations Summary 12/10/97 All major pieces of testing equipment moved to location. Berms and dikes built for separator and gauge tank. Generator on location. All equipment plugged in and warming up. Phase 1 weather conditions. Shut down for night. 12/11/97 Shut down for weather. 35 mph winds and blowing snow. 12/12/97 Finish rigging up flow lines, choke manifold, separator, gauge tank and data acquisition unit. E-Line unit available. Ran GR/CCL and Gyro. Found TD @ 13,168'. Slightly soft bottom. Well not deep enough to perforate 13,160' to 13,170'. Located Frac Isolation Tool (to set in SSSV Nipple) with a 3.0" ID. This is large enough for the 2.77" max OD of the 2 1/2" guns (with burrs). We will also use the Inner Annulus Relief Valve skid from ARCO Drill Site Maintenance for the ROPE perforating. 12/13/97 Pressure test hard lines and separator. Fill line heater with glycol. Rig up fuel gas supply line for line heater from E-10. The test equipment is ready to go. Do a fill clean out with the CTU. Used 2% KCI water without friction reducer and a jetting nozzle. Jetted about 5 feet of soft fill on bottom. Ran into something hard and could not make any more progress. Because of the uncertainties of the CTU depths, we wanted to run a Slickline TD Tag. No Slickline units available today. 12/14/97 Ran a slickline TD tag. Tied in to the "XN" nipple at 13,025'. Found TD @ 13,170'. Very hard bottom. Started up the line heater burner using gas from well E-10. Gave Schlumberger the perforation intervals. 13,160' to 13,170', 2-1/2" HSD gun, Deep penetration charge, 4 shots per ft. 0-180° phasing, oriented 90° from the Iow side of the hole. 12/15/97 Rigged up the Inner Annulus pressure relief skid. Riqqed up CTU, Drilled about 11'-,- to 13,181'. Blew down the well to 11,800' with N2. Function tested the separator while blowing down the well. 12/16/97 Attempt to set Frac Isolation Tool Sleeve. Could not get a seal between the sleeve and the SSSV nipple. Our feeling now is that the elastomers are to hard (90 Durometer) and the well bore temperature at 2242' is at or below 32°F. Will try again in the AM. We have several people thinking about this and probably loosing a lot of sleep. 12/17/97 Set Frac Isolation Tool in the SSSV Nipple. 12/18/97 Stand by waiting on perforating & Dowell Crews. Pumped Freeze protection treatment down E-10 flowline. (Freezing up a flowline is a big NO-NO. This is just good insurance.) 12/19/97 Move in and rig up Dowell, Schlumberger and HB&R for the ROPE perforating job. Finally got in the hole with the perf gun at 2200 hrs. 1 2/2O/97 Tied in and positioned gun @ 0100 hrs. Pressured up with N2 to 8500 psi and the gun would not fire. Bleed off N2 to 3000 psi and POH. Found a swivel adapter had flooded. Made up new gun assembly and RIH. In position by 09:45. Pressured up with N2 to 8500 psi and fired qun at 10:12 am. (ROPE perf Ivishak 13,155' to 13,165', 2-1/2" HSD gun, Deep penetration charge, 4 shots per ft. 0-180° phasing, oriented 90° from the Iow side of the hole.) WHP fell to 3000 psi in 13 minutes. POH and rig down. Put well on production at 14:50 hrs. Got fluids to surface in about 3 hours. Have been fighting the cold WHT and thick crud_e. As on Midnight, we were flowing the well to the 400 bbls tank. The well is still to cold and the WHP is to Iow to flow it down the E-10 flowline. Well E-10 appears to be hydrated off down hole. Can not get an gas to operate the line heater. Volume accounting: 19 bbls of fluid down flowline, 220 bbls fluid vac trucked to GC-I. Estimate 10% W/C. Reported no gas. 12/21/97 Flowed 195 bbls down flow line, trucked 1,300 fluids to GC-1. No water or gas reported to production accounting. WHP 180 to 210 psi, WHT 45 to 48°F. Tried thawing E-10 hydrate plug by pumping neat methanol down tubing. Did not work. 12/22/97 Flowing to stocktank. WHP 165 to 180 psi, WHT up to 52°F Thawed hydrate plug in E-10. Should have line heater working by midnight. 12/23/97 Flow well through separator for part of the day. Take PVT and Stock Tank oil and gas samples. Continue to flow through separator. E-10 is working OK. 12/24/97 Shut in well for Slick Line work. Had to hot oil tubincjI to pull FIT. Pumped 90 bbls of hot Page No. 1 S&.., #1 Chronoloqy of Well E..nts DATE Operations Summary diesel. Set catcher sub. Shut down for night. 12/25/97 Finish Slickline work. GLV's set in top two stations. Enjoy Christmas Dinner. Well to remain shut in until after perforating. If we flow the well, it will just tar up and we would have to hot oil the tubing to run the Perf guns. 12/26/97 Perforated Ivishak 13,150' to 13,155'. (2-7/8" HSD Gun, 6 shots per foot, 60° Phasing, Random Orientation, 34J HMX charges). Put well on production @ 14:00 hr. Well head pressure has been as Iow as 6 psi while flowing to the tank. WHT has been running from 25 to 45°F. Very thick crude. As of 21:30 hr., still do not have bottoms up. 12/27/97 Flowed well all night. Put flow through separator starting about 06:30. Still flowing with a Iow WHT (45 to 55°F) and WHP (195 to 230 psi) Rigged up HB&R at 11:30. Pumped 100 bbls of hot (180°F) diesel down inner annulus. This did warm the well some, but the annulus fluid (Diesel and Seawater) didn't do the well much good. Finished hot oiling at 13:00. Dowell Nitrogen on location at 14:00. Started pumpinq N2 at 450 scf/m. Displaced annulus down to the second GLM at 5100' by 15:30. Inner annulus pressure stabilized at 800 psi. Increased rate to 1,000 scf/m at 17:15. Pumped at this rate until 18:00. Shut down. This well is now on it's own. Will flow overnight. 12/28/97 Flowed well until ready to set DHSIT. Looks stable at about 1400 BPD and 350 GOR. Will send HES data sheets tomorrow. Shut in well @ 12:15 to run DHSlT. Clocks started 11:10 & 11:14 on the gauges and 11:32 on the DHSIT. 32 hour delay on shut in tool. Run in hole and set in "XN" Nipple at 13,025'. POH. Out of hole. Put well on production @ 15:15 hrs. 12/29/97 Flow well. Oil rate stable, Gas rate climbed slightly. Collected 1 gal stock tank oil sample for ARCO geo-chemistry lab. Down hole shut-in tool functioned at 17:36 hr. Blow down separator and flow lines. Clean up 400 bbl tank. Monitor WHP to assure the DHSIT is closed. 12/30197 Pressure Build-Up Survey-lvishak zone to 01/04/98 01/05/98 Pull DHSIT and Gauqes. 01/06/98 E-Pad shut down for maintenance. Wait On Weather. to 01/09/98 01/10/98 Pump warm Seawater and diesel to flush out and warm well bore. E-pad is supposed to be back on line tonight. 01/11/98 Displace well to Nitrogen. It took about twice as much N2 and the WHP was 650 psi higher than expected. It looks like the injectivity got a lot worse as the job progressed. Fluid level shots indicate the fluid is at or below the bottom GLM. Set "XXN" pluq in the "XN" nipple at 13,025'. Rigged down for night. Will monitor WHP and Fluid level over night 01/12/98 Continue Wireline work. Change out Gas Lift Valves. The main power transformer and distribution skid shorted out this AM. The blowing snow packed the inside of the switch and transformer cabinets. Located replacement equipment and are thawing out same. 01/13/98 Finished Wireline work. Rigged up new Power distribution panel. 01/14/98 Stand-by waiting for Frac Crew. 01/15/98 Stand-by Waiting on Frac Crew 01/16/98 Stand-by Waiting on Frac Crew 01/17/98 Stand-by Waiting on Frac Crew 01/18/98 Stand-by Waiting on Frac Crew 01/19/98 Move in and rig up for ROPE Perforating Job. Run in the hole with a 20', 2-1/2" perforating gun. Put Well E-10 on production to warm up flow line. 01/20/98 Pressure up tubinq to 8,500 psi with nitroqen. Fire perforating gun to ROPE perf Kuparuk from 11,775'-11,795 'at 05:37 hrs. WHP fell to 3,500 psi in 9 minutes. POH and rig down. Start flowing well at 13:00 hrs. Fluid to surface in 2 1/2 hrs. Page No. 2 Sa.., #1 Chronology of Well E..nts 01/21/98 Shut in well at 00:30 hrs. End of clean up period. Rig up HES slick line unit. Pull FIT isolation sleeve. Set DHSlT and tandem qauqes in "X" Nipple at 11,635' MD. Put on production at 15:00 hfs. Well stabilized on a 17/64" choke at about 1,000 bpd. There is some swings in the fluid rates at this choke setting. Decide to leave it at 17/64" because just a 1/64" choke change seems to give over a 100 bpd change. As of 21:00 hrs, gas and fluid production going down E-10 flow line. Called out HB&R to pump out the two 400 bbl vertical stock tanks. Pumped tank #1 down the E-10 flow line. Went to rig up to tank #2 suction line and found the tank valve broken and probably open. Can not remove the Kamloc cap. This is not going to be an easy tank to drain. Tried putting the suction hose in the top of the tank but could not get the pumps to prime up. The oil is to cold and thick. Shut down for the night. Will try to warm the tank tomorrow. 01/22/98 Flowed well and took Separator and Stock Tank Oil and Gas samples. Well shut in down hole at 17:39 hrs. Blow down separator and flow lines. Clean up 400 bbl tank. Monitor WHP to assure the DHSIT is closed. PRV skid is rigged down and has been returned to ARCO Drill site maintenance. Worked on 400 bbls tank with the bad tank valve. Hot oiled the tank with 141 bbls hot diesel. Finally got the tank valve to seal. Unloaded tank to a vac truck. HB&R pumped the crude down E-10 flowline. Replaced Tank valve. Cleaned up inside containment dike. 01/22/98 Pressure Build-Up Survey-Kuparuk zone to 02/2/98 02/02/98 Attempted to pull DHSlT. Thick tar in upper portion of tubing. Too thick to get down. 02/03/98 Wait on weather. 40 mph wind, 0°F 02/04/98 Wait on Weather. The wind is dying down and if VMS can get the drifts cleaned up by morning, we will go to work. 02/05/98 Pump 67 bbls of hot diesel down tubing. Pull DHSIT. Did not run another set of downhole gauges. The metal chips in the GS pulling tool may mean there is junk in the "X" nipple. Did not want to take a chance of sticking the gauges in the nipple. Put well on production. Flow back diesel. Formation fluids to surface @ 1915 hrs. Well warming up. Flow to gauge tanks to get meter factors for the two new turbine meters. As of 2345 hrs: working choke open to get a 1000 psi WHP. Will continue to flow and obtain a stable WHP and flow rate. 02/06/98 Flowed well on a 28164" choke. Approximate rate is 1,900 - 2,000 bopd, WHP 970 - 980 psi, W/C = 0%. Flowed well on a 38164" choke. Approximate rate is 3,250 - 3,350 bopd, WHP 740 - 750 psi, APl =29.8° Opened choke to 44/64". As of 2100 hrs, well not stable. Will flow well until morning and evaluate. 02/07/98 Flowed well on a 46164" choke. Well stable at 655 psi WHP and 3,950 bopd. Shut in well at 0700 hrs. Completed testing report and start to De-mob site. 02/08/98 Hot oil tubing and set SSSV. Closure tested SSV and SSSV. Leave both valves shut in. Flush surface lines and start rigging down. 02/09/98 Rig down and move equipment off location Page No. 3 12/20/97 12/22/97 1~23~7 Oil Rate (BOPD), Gas Rate (MCFD), Water Rate (BOPD) o o ~'~ o o o o o o ~ ~ o o o o o < .......... Rope Perf'd 10' Ivishak < ..... opened well to choke manifol¢ 1~24~7 12/25/97 12/26/97 1~27~7 12/28/97 12/29/97 ~30~7 /97 o < ...... SI well to prep for Adperfs Well flowing cold at 45F. < ..... Shoot 5' additional Ivishak perf.~ ,n well to tank, WHT 25F .... Begin A/L gas (N2) 0 <---SI well, run DH gauges < .... Open well to flow < .... Well SI for Gauge Selection/Manipulation 4000 3000 2000 1000 0 t I I Gauge A Oil Flow Rate ............ 0 100 200 I 1500 1000 500 0 Delta Time(hrs) Ivishak Testing Results Main flow test prior to PBU 28.5 hrs 1000-2000 BOPD 48/64" ck PBU analysis 0.5-2.25 MMSCFD 500-1300 GOR 506 psi WHP 77° F WHT Still being analyzed 9-16% WC Other Results Oil APl° 24 Gas Gravity 0.72 Reservoir Temperature 201 o F Reservoir Pressure 3677 psig Productivity Index* 1.4 bbls/psi BHFP* 2008 psig cum oil 8423 STB cum gas 2.494 MMSCF cum water 1290 STB During Main flow period 1/20/98 0:00 1/20/98 12:00 1/21198 0:00 1/21/98 12:00 1/'22/98 0:00 1/22/98 12:00 1~3~80:00 0 Oil Rate (BOPD), Gas Rate (MCFD) (::) O O O o O O O O O 0 O < .... ROPE perf 20 ft Kuparuk < .......... Gradually open well start flow test ........ ~ <--- Shut in to run gauges <---Placed on Production <-- Shut in well for PBU WHP (psig), GOR (SCF/BBL) Gauge Selection/Manipulation 3800 2800 1800 800 -200 I I I I J I I bottom gauge Oil Flow Rate I I I I -40 60 1.60 1400 900 400 , -100 Delta Time(hrs) Sam #1 Kuparuk Flow Test 5000 4500 4OOO I~ 350O LI. 0 '~ 3000 2500 133 2000 ~ 1500 1000 5OO 200O 1800 1600 1400 1200 1000 800 600 400 20O Kuparuk Testing Results Main flow prior to PBU 26.5 hrs 877 BOPD 17/64" ck 485 MSCFD 1180 psi WH P 554 GOR 40° F WHT PBU analysis Still being analyzed Inflow Performance Test 12 hrs 28/64" ck 2036 BOPD 5.5 hrs 38/64" ck 3316 BOPD 11 hrs 46/64" ck 3967 BOPD 1.1 7 MMSCFD 1.38 MMSCFD 1.54 MMSCFD O% WC 575 GOR 416 GOR 387 GOR O% WC O% WC O% WC 53° F WHT 64° F WHT 72° F WHT 966 psi WHP 768 psi WHP 656 psi WHP Other Results Oil APl° 28.8-30 Gas Gravity 0.736 Reservoir Temperature 161 o F Reservoir Pressure 4037 psig Productivity Index 2.6 bbls/psi BHFP 3703 psig cum oil cum gas cum wtr 4235 1.824 0 STB MMSCF STB *During Main flow period Sam#1 Kuparuk Zone Test Vogel IPR Model k=180 md, skin=O. H&B hydroul F,~. ,'-... ~..-'. 4000. - 3000. 2000. 1000. , . I v I -L 2000. I A --_ , 4000. · I I ' .~ I , I ~ If I IPR Tubing/FL WhPrs. 768.000 WhPrs. 966.000-' -' .......... WhPm. 300.000 Min. Lift Rate Min. Eros. Rate i 6000. 8000. Liquid Rate (BLPD) CONF! DENTIAL RECEIVED JAN BPXA PDC ARCO ALASKA INC./B.P. EXPLORATION SAMBUCA, WELL NO. 1 PRUDHOE BAY FIELD, W.O.A., ALASKA Gyro Continuous Muitishot Survey Inside 4.5" TUBING Survey date: 08 - NOVEMBER, 1998 Job number · AK1198GCE508 ORIGINAL CONTENTS JOB NUMBER :AK1198GCE508 1. DISCUSSION , SURVEY CERTIFICATION SHEET 2. SURVEY DETAILS 3. INRUN SURVEY LISTING 4. QUALITY CONTROL 5. EQUIPMENT AND CHRONOLOGICAL REPORT 1. DISCUSSION, SURVEY CERTIFICATION SHEET DISCUSSION JOB NUMBER: AK1198GCE508 Tool 786 was run in WELL# 1 on SCHLUMBERGER 7/32" wireline inside 4.5" TUBING. The survey was completed without problems. SURVEY CERTIFICATION SHEET JOB NUMBER: AK1198GCE508 The data for this survey and the calculations for this survey were obtained and performed by me according to standards and procedures as set forth by Gyrodata Limited, true and correct to the best of my knowledge. TOM STODDARD OPERATIONS ENGINEER The data and calculations for this survey have been checked by me and conform to the standards and procedures as set forth by Gyrodata Limited. This report represents a directional survey of this well based on the original data obtained at the wellsite. Checked by :- JACK E. MAY OPERATIONS MANAGER 2. SURVEY DETAILS SURVEY DETAILS JOB NUMBER' AK1198GCE508 CLIENT · ARCO ALASKA INC. RIG · SCHLUMBERGER LOCATION · SAMBUCA WELL · LATITUDE · 70.345 N LONGITUDE: 148.90 W SURVEY DATE · SURVEY TYPE · 08 - NOVEMBER, 1998 GYRO CONTINUOUS MULTISHOT DEPTH REFERENCE' ROTARY TABLE ELEVATION 69.0' MAX. SURVEY DEPTH · 13000' SURVEY TIED ONTO · N/A SURVEY INTERVAL' 0-13000' APl NUMBER' TARGET DIRECTION · 050-029-22819-00 352.67 GRID CORRECTION' N/A CALCULATION METHOD' MINIMUM CURVATURE SURVEYOR' TOM STODDARD 3. INRUN SURVEY LISTING A Gy r o da t a D i r e c t i o n a i S u rve y for ARCO ALASKA INC. WELL: 1, 4.5" TUBING Location: E PAD, SAMBUCA, PRUDHOE BAY FIELD, ALASKA 'ob Number: AKl198GCE508 '.un Date: 8-Nov-98 10:19:51 iurveyor: TOM STODDARD ]alculation Method: MINIMUM CURVATURE ;urvey Latitude: 70.345000 deg. N ~ub-sea Correction from Vertical Reference: 69 ft. ~zimuth Correction: ~yro: Bearings are Relative to True North ~roposed Well Direction: 352.670 deg Tertical Section Calculated from Well Head Location ]losure Calculated from Well Head Location {orizontal Coordinates Calculated from Local Horizontal Reference A Gy r o d a t a D i r e c t i o n a i S u rv e y .RCO ALASKA INC. 'ELL: 1, 4.5" TUBING ,ocation: E PAD, SAMBUCA, 'ob Number: AKl198GCES08 PRUDHOE BAY FIELD, ALASKA Page iEASURED I DEPTH feet N C L AZIMUTH deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 0.0 100.0 200.0 300.0 400.0 0.00 0.00 .30 275.13 .29 286.41 .81 263.7]. ]..43 274.14 .00 0.0 -69.0 0.0 0.0 0.0 .30 100.0 31.0 .1 .3 275.1 .06 200.0 131.0 .2 .8 278.8 .55 300.0 231.0 .3 1.7 273.7 .65 400.0 331.0 .6 3.6 271.9 0.0 N 0.0 E .ON .3 W .1 N .8 W .1 N 1.7 W .1 N 3.6 W 50O 6OO 700 8OO 9OO .0 .0 .0 .0 .0 2.21 272.21 3.16 268.92 4.14 267.30 4.88 267.41 6.05 267.76 .78 499.9 430.9 1.2 6.8 272.4 .97 599.8 530.8 1.8 11.5 271.5 .99 699.6 630.6 2.4 17.9 270.3 .74 799.3 730.3 3.0 25.7 269.4 .16 898.8 829.8 3.8 35.2 268.9 .3 N 6.8 W .3 N 11.5 W .1 N 17.9 W .3 S 25.7 W .7 S 35.2 W 1000 1100 1200 1300 1350 .0 .0 .0 .0 .0 7.97 295.45 9.37 303.34 ].1.28 306.12 13.83 310.19 15.00 311.70 .83 998.1 929.1 8.0 46.8 272.6 .84 1097.0 1028.0 17.1 60.6 279.1 .98 1195.4 1126.4 29.1 77.1 284.9 .69 1293.0 1224.0 44.7 97.4 290.0 .47 1341.4 1272.4 54.0 109.1 292.3 2.1 N 46.8 W 9.6 N 59.8 W 19.8 N 74.5 W 33.3 N 91.6 W 41.4 N 101.0 W 1400 1450 1500 1550 1600 .0 .0 .0 .0 .0 16.01 313.64 16.50 315.38 16.78 316.80 16.99 317.87 17.32 318.66 · 26 1389.6 1320.6 64.2 121.7 294.5 .39 1437.6 1368.6 75.2 135.0 296.5 · 98 1485.5 1416.5 86.7 148.5 298.4 · 75 1533.3 1464.3 98.6 162.3 300.1 .81 1581.1 1512.1 110.7 176.4 301.6 50.5 N 110.8 W 60.3 N 120.8 W 70.6 N 130.7 W 81.3 N ]_40.5 W 92.3 N 150.3 W 1650.0 1700.0 1750.0 1800.0 2.850.0 17.74 319.72 18.20 320.80 18.96 321.63 19.74 322.15 20.34 321.89 1.05 1628.8 1559.8 123.3 190.8 302.9 1.14 1676.3 1607.3 136.3 205.6 304.2 1.62 1723.7 1654.7 149.9 220.9 305.4 1.60 1770.9 1701.9 164.1 236.8 306.6 1.20 1817.9 1748.9 178.9 253.4 307.6 103.7 N 160.2 W 115.6 N ]_70.0 W 128.0 N 180.0 W 141.0 N 190.2 W 1_54.5 N 200.8 W A Gy r o da t a D i r e c t i o n a i Survey .RCO ALASKA INC. ~ELL: 1, 4.5" TUBING ,ocation: E PAD, SAMBUCA, 'ob Number: AKl198GCES08 PRUDHOE BAY FIELD, ALASKA Page 2 [EASURED DEPTH feet I N C L AZIMUTH deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 1900 1950 2000 2050 2100 .0 .0 .0 .0 .0 21.29 320.80 23.31 320.12 25.58 320.15 27.66 320.89 29.07 322.86 2.05 1864.6 1795.6 194.1 270.6 308.5 4.08 1910.9 1841.9 210.1 289.2 309.3 4.53 1956.4 1887.4 227.5 309.6 310.0 4.22 2001.1 1932.1 246.5 331.6 310.7 3.38 2045.1 1976.]. 266.9 354.9 311.4 168.4 N 211.9 W 183.0 N 224.0 W 198.9 N 237.2 W 216.2 N 251.5 W 234.9 N 266.1 W 2150 2200 2250 2300 2350 .0 .0 .0 .0 .0 29.72 325.32 29.74 326.61 29.98 328.37 30.41 329.93 31.27 331.28 2.75 2088.6 2019.6 288.5 378.9 312.2 254.8 N 280.5 W 1.28 2132.1 2063.1 310.6 403.1 313.1 275.3 N 294.4 W 1.81 2175.4 2106.4 333.1 427.2 313.9 296.3 N 307.7 W 1.79 2218.6 2149.6 356.2 451.5 314.8 317.9 N 320.6 W 2.20 2261.6 2192.6 380.0 476.2 315.6 340.2 N 333.2 W 2400 2450 2500 2550 2600 .0 .0 .0 .0 .0 32.22 332.38 33.21 333.94 33.95 335.17 34.49 336.52 34.78 338.25 2.22 2304.1 2235.1 404.5 501.5 316.4 2.60 2346.2 2277.2 430.0 527.5 317.3 2.01 2387.8 2318.8 456.3 553.9 318.1 1.87 2429.2 2360.2 483.2 580.8 319.0 2.05 2470.3 2401.3 510.6 607.8 319.8 363.4 N 345.6 W 387.5 N 357.8 W 412.5 N 369.7 W 438.2 N 381.2 W 464.4 N 392.1 W 2650 2700 2750 2800 2850 .0 .0 .0 .0 .0 35.17 340.45 35.75 341.92 36.66 342.80 37.74 343.31 38.90 343.67 2.64 2511.3 2442.3 538.5 634.9 320.7 491.2 N 402.2 W 2.06 2552.0 2483.0 566.9 662.1 321.6 518.7 N 411.6 W 2.11 2592.3 2523.3 596.0 689.8 322.4 546.8 N 420.5 W 2.23 2632.2 2563.2 625.8 718.2 323.3 575.7 N 429.4 W 2.37 2671.4 2602.4 656.4 747.4 324.1 605.4 N 438.2 W 2900.0 2950.0 3000.0 3050.0 3100.0 39.78 344.89 40.89 347.20 41.97 348.65 42.61 349.63 43.04 350.23 2.35 2710.1 2641.1 687.8 777.2 324.9 3.73 2748.2 2679.2 719.9 807.5 325.7 2.89 2785.7 2716.7 752.9 838.2 326.6 1.83 2822.7 2753.7 786.5 869.4 327.4 1.19 2859.3 2790.3 820.4 900.8 328.3 636.0 N 446.7 W 667.4 N 454.5 W 699.7 N 461.5 W 732.8 N 467.8 W 766.2 N 473.7 W A Gy r o d a t a D i r e c t i o n a i S u r ve y ~RCO ALASKA INC. JELL: 1, 4.5" TUBING ~ocation: E PAD, SAMBUCA, [ob Number: AKl198GCE508 PRUDHOE BAY FIELD, ALASKA Page ~EASURED DEPTH feet I N C L AZIMUTH deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 3150.0 3200.0 3250.0 3300.0 3350.0 43.55 350.31 44.13 350.33 44.71 350.35 45.51 350.37 46.34 350.60 1.03 2895.7 2826.7 854.7 932.7 329.1 1.16 2931.8 2862.8 889.3 965.1 329.8 1.16 2967.5 2898.5 924.2 997.9 330.5 1.60 3002.8 2933.8 959.6 1031.3 331.2 1.69 3037.6 2968.6 995.5 1065.3 331.8 800.0 N 479.5 W 834.2 N 485.4 W 868.7 N 491.2 W 903.6 N 497.2 W 939.0 N 503.1 W 3400.0 3450.0 3500.0 3550.0 3600.0 47.19 351.04 47.84 351.59 48.84 352.13 49.91 352.54 50.50 353.16 1.81 3071.8 3002.8 1031.9 1099.8 332.4 975.0 N 508.9 W 1.54 3105.6 3036.6 1068.8 1134.7 333.0 1011.4 N 514.5 W 2.16 3138.8 3069.8 1106.1 1170.2 333.6 1048.4 N 519.8 W 2.23 3171.4 3102.4 1144.1 1206.2 334.2 1086.0 N 524.8 W 1.52 3203.4 3134.4 1182.5 1242.6 334.8 1124.1 N 529.6 W 3650.0 3700.0 3750.0 3800.0 3850.0 51.03 354.21 52.28 355.12 54.06 355.91 55.42 356.18 56.09 356.44 1.95 3235.0 3166.0 1221.2 1279.3 335.3 1162.6 N 533.9 W 2.86 3266.0 3197.0 1260.4 1316.4 335.9 1201.7 N 537.5 W 3.79 3296.0 3227.0 1300.4 1354.2 336.5 1241.6 N 540.6 W 2.75 3324.8 3255.8 1341.1 1392.7 337.0 1282.3 N 543.4 W 1.41 3353.0 3284.0 1382.4 1431.8 337.6 1323.5 N 546.1 W 3900.0 3950.0 4000.0 4050.0 4100.0 56.34 357.02 56.77 357.57 56.55 357.97 55.87 358.92 55.74 358.59 1.08 3380.8 3311.8 1423.8 1471.1 338.1 1.26 3408.3 3339.3 1465.4 1510.6 338.6 .81 3435.8 3366.8 1507.0 1550.1 339.1 2.08 3463.6 3394.6 1548.4 1589.4 339.6 .60 3491.7 3422.7 1589.5 1628.5 340.1 1365.0 N 548.5 W 1406.7 N 550.4 W 1448.4 N 552.1 W 1490.0 N 553.2 W 1531.3 N 554.1 W 4150.0 4200.0 4250.0 4300.0 4350.0 55.27 358.05 55.09 357.17 54.87 356.22 54.35 355.28 53.90 354.62 1.29 3520.0 3451.0 1630.5 1667.7 340.6 1572.5 N 555.3 W 1.49 3548.6 3479.6 1671.4 1707.0 341.0 1613.5 N 557.0 W 1.61 3577.3 3508.3 1712.3 1746.4 341.3 1654.4 N 559.4 W 1.85 3606.2 3537.2 1753.0 1785.9 341.6 1695.1 N 562.4 W 1.40 3635.5 3566.5 1793.4 1825.4 341.9 1735.4 N 566.0 W A Gy r o d a t a D i r e c t i o n a i S u rv e y RCO ALASKA INC. ELL: 1, 4.5" TUBING ocation: E PAD, SAMBUCA, ob Number: AKl198GCE508 PRUDHOE BAY FIELD, ALASKA Page EASURED I DEPTH feet N C L AZIMUTH deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 4400.0 4450.0 45OO.0 4550.O 4600.0 53.70 354.52 53.32 354.52 53.44 354.45 53.79 354.17 53.84 354.02 .43 3665.1 3596.1 1833.8 1864.8 342.2 1775.6 N 569.8 W .75 3694.8 3625.8 1873.9 1904.1 342.5 1815.6 N 573.6 W .27 3724.6 3655.6 1914.1 1_943.3 342.7 1855.5 N 577.5 W .82 3754.3 3685.3 1_954.3 1982.8 342.9 1895.6 N 581.5 W .27 3783.8 3714.8 1994.6 2022.4 343.2 1935.7 N 585.6 W 4650.0 4700.0 4750.0 4800.0 4850.0 53 . 79 353 . 81 53 .67 353 .62 54 . 05 353 . 48 54 .42 353 .30 54 . 43 352.92 .35 3813.3 3744.3 2035.0 2062.0 343.4 1975.9 N 589.9 W .40 3842.9 3773.9 2075.3 2101.7 343.6 2015.9 N 594.3 W .81 3872.4 3803.4 2].15.7 2141.5 343.8 2056.1 N 598.9 W .79 3901.6 3832.6 2156.2 2181.5 343.9 2096.4 N 603.5 W .61 3930.7 3861.7 2196.9 2221.7 344.1 2136.7 N 608.4 W 4900.0 4950.0 5000.0 5050.0 5100.0 54.37 352.54 53.49 352.63 53.48 352.49 53.84 352.26 53.75 352.22 .63 3959.8 3890.8 2237.6 2261.9 344.3 2177.1 N 613.5 W .78 3989.2 3920.2 2278.0 2301.9 344.4 2217.1 N 618.8 W .22 4019.0 3950.0 2318.2 2341.7 344.5 2257.0 N 624.0 W .81 4048.6 3979.6 2358.4 2381.6 344.7 2296.9 N 629.3 W .19 4078.2 4009.2 2398.8 2421.6 344.8 2336.9 N 634.8 W 5150.0 5200.0 5250.0 5300.0 5350.0 53.48 352.40 53.48 352.98 53.03 353.62 52.73 353.57 53.18 353.52 .61 4107.8 4038.8 2439.0 2461.5 344.9 2376.8 N 640.1 W .95 4137.6 4068.6 2479.2 2501.3 345.1 2416.6 N 645.3 W .36 4167.5 4098.5 2519.3 2540.9 345.2 2456.4 N 649.9 W .60 4197.7 4128.7 2559.1 2580.4 345.3 2496.0 N 654.4 W .90 4227.8 4158.8 2599.0 2619.9 345.4 2535.7 N 658.9 W 5400.0 5450.0 5500.0 5550.0 5600.0 53 .03 353 .37 53.06 353 .02 53 .33 352 .66 53 .66 352 .28 53 .71 352 .07 .39 4257.8 4188.8 2639.0 2659.5 345.6 2575.4 N 663.4 W .56 4287.9 4218.9 2679.0 2699.1 345.7 2615.1 N 668.2 W .80 4317.8 4248.8 2719.0 2738.8 345.8 2654.8 N 673.2 W .89 4347.6 4278.6 2759.2 2778.8 345.9 2694.7 N 678.4 W .35 4377.2 4308.2 2799.5 2818.8 346.0 2734.6 N 683.9 W A Gy r o d a t a D i r e c t i o n a i S u r v e y ~RCO ALASKA INC. IELL: 1, 4.5" TUBING ,ocation: E PAD, SAMBUCA, 'ob Number: AKl198GCE508 PRUDHOE BAY FIELD, ALASKA Page [EASURED DEPTH feet I N C L AZIMUTH deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 5650 5700 5750 5800 5850 .0 .0 .0 .0 .0 53.59 352.46 53.08 353.59 52.81 354.18 52.97 354.19 53.32 353.96 .66 4406.8 4337.8 2839.8 2858.8 346.0 2774.5 N 689.3 W .09 4436.7 4367.7 2879.9 2898.6 346.1 2814.3 N 694.2 W .09 4466.8 4397.8 2919.7 2938.2 346.2 2854.0 N 698.4 W .32 4497.0 4428.0 2959.6 2977.7 346.4 2893.6 N 702.5 W .79 4526.9 4457.9 2999.6 3017.3 346.5 2933.4 N 706.6 W 59OO 5950 6000 6050 6100 .0 .0 .0 .0 .0 53.53 353.92 53.52 354.19 52.52 354.97 52.60 355.25 52.64 355.38 .43 4556.7 4487.7 3039.7 3057.1 346.6 .45 4586.5 4517.5 3079.9 3097.0 346.7 .34 4616.5 4547.5 3119.9 3136.6 346.8 .47 4646.9 4577.9 3159.5 3175.9 346.9 .22 4677.3 4608.3 3199.2 3215.2 347.0 2973.4 N 710.9 W 3013.3 N 715.0 W 3053.1 N 718.8 W 3092.7 N 722.2 W 3132.3 N 725.4 W 6150 6200 6250 6300 6350 .0 .0 .0 .0 .0 52.63 354.99 52.59 354.78 52.76 354.62 53.04 354.30 53.23 354.26 .62 4707.6 4638.6 3238.9 3254.5 347.1 3171.9 N 728.8 W .34 4738.0 4669.0 3278.6 3293.9 347.2 3211.4 N 732.3 W .43 4768.3 4699.3 3318.3 3333.3 347.2 3251.0 N 736.0 W .76 4798.5 4729.5 3358.2 3372.8 347.3 3290.7 N 739.8 W .39 4828.5 4759.5 3398.2 3412.6 347.4 3330.5 N 743.8 W 6400 6450 6500 6550 6600 .0 .0 .0 .0 .0 53.40 354.28 52.35 355.09 52.55 355.13 53.00 354.88 53.29 354.93 .33 4858.3 4789.3 3438.3 3452.4 347.5 3370.4 N 747.8 W .45 4888.5 4819.5 3478.1 3491.9 347.6 3410.1 N 751.5 W .40 4919.0 4850.0 3517.7 3531.2 347.7 3449.6 N 754.9 W 98 4949.2 4880.2 3557.5 3570.7 347.7 3489.3 N 758.4 W .58 4979.2 4910.2 3597.5 3'610.4 347.8 3529.1 N 761.9 W 6650.0 6700.0 6750.0 6800.0 6850.0 53.57 355.06 '53.67 355.15 52.39 355.27 52.38 354.97 52.77 354.32 · 60 5009.0 4940.0 3637.6 3650.3 347.9 3569.1 N 765.4 W .24 5038.7 4969.7 3677.8 3690.2 348.0 3609.2 N 768.9 W 2.56 5068.7 4999.7 3717.7 3729.8 348.1 3649.0 N 772.2 W .49 5099.3 5030.3 3757.3 3769.2 348.1 3688.5 N 775.6 W 1.30 5129.6 5060.6 3797.0 3808.6 348.2 3728.0 N 779.3 W A Gy r o d a t a D i r e c t i o n a i S u rv e y ~RCO ALASKA INC. tELL: 1, 4.5" TUBING Jocation: E PAD, SAMBUCA, 'ob Number: AKl198GCE508 PRUDHOE BAY FIELD, ALASKA Page IEASURED I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 6900.0 52.99 353.95 6950.0 53.19 353.60 7000.0 53.64 353.35 7050.0 54.18 353.15 7100.0 53.72 353.78 .73 5159.8 5090.8 3836.8 3848.3 348.3 .69 5189.8 5120.8 3876.8 3888.1 348.3 .99 5219.6 5150.6 3917.0 3928.0 348.4 .12 5249.1 5180.1 3957.4 3968.3 348.4 .37 5278.5 5209.5 3997.8 4008.6 348.5 3767.7 N 783.3 W 3807.4 N 787.7 W 3847.3 N 792.2 W 3887.4 N 797.0 W 3927.6 N 801.6 W 7].50.0 53.23 354.60 '7200.0 52.91 354.80 7250.0 53.21 354.95 7300.0 53.47 355.12 7350.0 53.44 355.04 .65 5308.3 5239.3 4037.9 4048.6 348.5 .71 5338.3 5269.3 4077.9 4088.3 348.6 .65 5368.4 5299.4 4117.8 4128.0 348.6 .58 5398.2 5329.2 4157.9 4].67.9 348.7 .14 5428.0 5359.0 4198.0 4207.8 348.8 3967.6 N 805.7 W 4007.4 N 809.3 W 4047.2 N 812.9 W 4087.1 N 816.4 W 4127.2 N 819.8 W 7400.0 53.46 355.12 7450.0 53.74 355.01 7500.0 53.86 354.52 7550.0 54.21 354.07 7600.0 54.43 353.66 .12 5457.8 5388.8 4238.2 4247.7 348.8 .58 5487.4 5418.4 4278.4 4287.7 348.9 .83 5517.0 5448.0 4318.7 4327.9 348.9 .02 5546.3 5477.3 4359.1 4368.2 349.0 .79 5575.5 5506.5 4399.8 4408.6 349.0 4167.2 N 823.3 W 4207.3 N 826.7 W 4247.5 N 830.4 W 4287.7 N 834.4 W 4328.1 N 838.8 W 7650.0 54.13 354.16 7700.0 52.69 355.79 7750.0 52.93 355.92 7800.0 53.22 355.76 7850.0 53.40 355.41 .01 5604.7 5535.7 4440.3 4449.1 349.1 .88 5634.5 5565.5 4480.4 4489.0 349.1 .53 5664.7 5595.7 4520.2 4528.6 349.2 .62 5694.8 5625.8 4560.1 4568.3 349.2 .68 5724.6 5655.6 4600.2 4608.1 349.3 4368.5 N 843.1 W 4408.5 N 846.6 W 4448.2 N 849.5 W 4488.1 N 852.4 W 4528.0 N 855.5 W 7900.0 53.61 354.99 7950.0 54.01 354.68 8000.0 54.30 354.22 8050.0 54.70 353.83 8100.0 55.18 353.57 .79 5754.4 5685.4 4640.3 4648.1 349.4 .94 5783.9 57].4.9 4680.6 4688.3 349.4 .96 5813.2 5744.2 4721.2 4728.7 349.4 1.01 5842.2 5773.2 4761.9 4769.2 349.5 1.06 5870.9 5801.9 4802.8 4810.1 349.5 4568.1 N 858.8 W 4608.3 N 862.5 W 4648.6 N 866.4 W 4689.1 N 870.6 W 4729.8 N 875.1 W A Gy r o d a t a D i r e c t i o n a i S u rv e y .RCO ALASKA INC. IELL: 1, 4.5" TUBING ,ocation: E PAD, SAMBUCA, 'ob Number: AKl198GCE508 PRUDHOE BAY FIELD, ALASKA Page [EASURED DEPTH feet I N C L AZIMUTH deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 81 82 82 83 83 50.0 00.0 50.0 00.0 50.0 53.41 354.55 53.40 354.74 54.00 354.64 54.80 354.44 55.30 354.08 3.88 5900.1 5831.1 4843.4 4850.5 349.6 4770.2 N 879.3 W .31 5929.9 5860.9 4883.5 4890.5 349.6 4810.1 N 883.1 W 1.21 5959.5 5890.5 4923.8 4930.7 349.6 4850.2 N 886.8 W 1.64 5988.6 5919.6 4964.4 4971.2 349.7 4890.7 N 890.7 W 3..15 6017.3 5948.3 5005.4 5012.0 349.7 4931.5 N 894.8 W 8400.0 845O.O 8500.0 8550.0 8600.0 55.55 354.16 53.66 355.06 54 . 04 355 . 00 54.38 354.61 54.72 354.28 .52 6045.7 5976.7 5046.5 5053.1 349.8 .05 6074.6 6005.6 5087.2 5093.7 349.8 .77 6104.1 6035.1 5127.6 5133.9 349.8 .93 6133.3 6064.3 5168.1 5174.3 349.9 .86 6162.3 6093.3 5208.8 5214.9 349.9 4972.4 N 899.0 W 5013.0 N 902.8 W 5053.2 N 906.3 W 5093.6 N 910.0 W 5134.2 N 913.9 W 86 87 87 88 88 50.0 00.0 50.0 00.0 50.0 55.38 354.01 55.05 354.14 53.97 354.30 53.20 355.89 52.36 356.86 .38 6191.0 6122.0 5249.8 5255.8 349.9 5174.9 N 918.]. W .68 6219.5 6150.5 5290.8 5296.7 350.0 5215.8 N 922.4 W .17 6248.5 6179.5 5331.5 5337.3 350.0 5256.3 N 926.5 W .00 6278.2 6209.2 5371.7 5377.4 350.0 5296.4 N 929.9 W .27 6308.5 6239.5 5411.5 5417.0 350.1 5336.1 N 932.4 W 89 89 90 90 91 00.0 50.0 00.0 50.0 00.0 52.86 356.78 53.65 356.50 53 .96 356.26 54.21 356.12 52.77 356.42 .01 6338.8 6269.8 5451.1 5456.4 350.1 5375.8 N 934.6 W .63 6368.7 6299.7 5491.1 5496.2 350.2 5415.8 N 937.0 W .73 6398.3 6329.3 5531.3 5536.3 350.2 5456.0 N 939.5 W .55 6427.6 6358.6 5571.7 5576.6 350.3 5496.5 N 942.2 W .94 6457.3 6388.3 5611.9 5616.6 350.3 5536.6 N 944.8 W 9150.0 9200.0 9250.0 9300.0 9350.0 52.33 356.31 52.68 355.90 52.89 355.66 53.27 355.44 53.33 355.24 · 88 6487.7 6418.7 5651.5 5656.1 350.4 5576.2 N 947.4 W .95 6518.2 6449.2 5691.1 5695.5 350.4 5615.7 N 950.0 W .56 6548.4 6479.4 5730.8 5735.2 350.4 5655.5 N 953.0 W .84 6578.5 6509.5 5770.7 5775.0 350.5 5695.3 N 956.1 W .34 6608.3 6539.3 5810.8 5814.9 350.5 5735.3 N 959.3 W A Gy r o d a t a D i r e c t i o n a I S u rv e y ~RCO ALASKA INC. ;ELL: 1, 4.5" TUBING Jocation: E PAD, SAMBUCA, [ob Number: AK1198GCES08 PRUDHOE BAY FIELD, ALAS KA Page IEASURED I DEPTH feet N C L AZIMUTH deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 9400.0 51.93 355.87 9450.0 51.73 355.81 9500.0 51.87 355.47 9550.0 51.95 355.07 9600.0 52.04 354.82 2.98 6638.7 6569.7 5850.5 5854.5 350.5 5774.9 N 962.4 W .40 6669.6 6600.6 5889.7 5893.7 350.6 5814.1 N 965.3 W .60 6700.5 6631.5 5929.0 5932.8 350.6 5853.3 N 968.3 W .65 6731.4 6662.4 5968.3 5972.0 350.6 5892.5 N 971.5 W .44 6762.1 6693.3. 6007.6 6011.3 350.7 5931.7 N 975.0 W 9650.0 9700.0 9750.0 9800.0 9850.0 52.06 354.38 51.89 354.02 52.20 353.71 52.28 353.86 51.78 355.01 .69 6792.9 6723.9 6047.0 6050.6 350.7 5971.0 N 978.7 W .67 6823.7 6754.7 6086.4 6090.0 350.7 6010.2 N 982.7 W .80 6854.4 6785.4 6125.8 6129.3 350.7 6049.4 N 986.9 W .29 6885.1 6816.1 6165.3 6168.8 350.8 6088.7 N 991.2 W 2.07 6915.8 6846.8 6204.7 6208.1 350.8 6127.9 N 995.0 W 9900.0 51.34 355.16 9950.0 51.62 355.01 L0000.0 51.73 354.88 L0050.0 51.87 354.65 L0100.0 52.02 354.41 .92 6946.9 6877.9 6243.9 6247.2 350.8 6166.9 N 998.3 W .61 6978.1 6909.1 6283.0 6286.2 350.8 6205.9 N 1001.7 W .31 7009.1 6940.1 6322.1 6325.3 350.9 6244.9 N 1005.1 W .45 7040.0 6971.0 6361.4 6364.5 350.9 6284.1 N 1008.7 W .48 7070.8 7001.8 6400.8 6403.8 350.9 6323.3 N 1012.5 W LO150.O L0200.O L0250.0 L0300.O 1.0350.0 52.10 354.30 52 . 16 354 . 20 52.10 353.86 52 . 26 353 . 78 52.63 353.50 .24 7101.5 7032.5 6440.2 6443.2 350.9 6362.5 N 1016.4 W .20 7132.2 7063.2 6479.6 6482.6 350.9 6401.8 N 1020.3 W .55 7162.9 7093.9 6519.1 6522.0 351.0 6441.0 N 1024.4 W .35 7193.6 7124.6 6558.6 6561.4 351.0 6480.3 N 1028.7 W .87 7224.1 7155.1 6598.2 6601.0 351.0 6519.7 N 1033.1 W ~0400.0 52.73 353.51 10450.0 52.84 353 .11 /0500.0 52.70 353 .20 1.0550.0 53 .03 353 .08 10600.0 53.05 353.12 .20 7254.4 71.85.4 6638.0 6640.8 351.0 6559.2 N 1037.6 W .67 7284.6 7215.6 6677.8 6680.5 351.0 6598.7 N 1042.2 W .31 7314.9 7245.9 6717.6 6720.3 351.0 6638.3 N 1046.9 W .69 7345.1 7276.1 6757.5 6760.2 351.0 6677.9 N 1051.7 W 07 7375.1 7306.1 6797.4 6800.1 351.1 6717.5 N 1056.5 W A Gyro d a t a D i r e c t i ona i S u rvey ,RCO ALASKA INC. IELL: 1, 4.5" TUBING ,ocation: E PAD, SAMBUCA, 'ob Number: AKl198GCE508 PRUDHOE BAY FIELD, ALASKA Page IEASURED I DEPTH feet N C L AZIMUTH deg. deg. DOGLEG VERTICAL SUBSEA VERTICAL CLOSURE SEVERITY DEPTH DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet .0650.0 .0700.0 .0750.0 .0800.0 .0850.0 52.84 352.65 52.66 352.58 52.62 352.62 53.34 352.57 53.38 352.33 .86 7405.2 7336.2 6837.3 6840.0 351.1 6757.1 N 1061.4 W .39 7435.5 7366.5 6877.1 6879.8 351.1 6796.6 N 1066.6 W .08 7465.9 7396.9 6916.9 6919.5 351.1 6836.0 N 1071.7 W .44 7496.0 7427.0 6956.8 6959.4 351.1 6875.6 N 1076.8 W .39 7525.8 7456.8 6996.9 6999.5 351.1 6915.4 N 1082.1 W .0900 _0950 _1000 .1050 [1100 .0 .0 .0 .0 .0 53.41 352.24 53.51 352.20 51.92 353.29 51.52 353.43 49.49 354.88 .17 7555.6 7486.6 7037.0 7039.6 351.1 6955.1 N 1087.5 W .20 7585.4 7516.4 7077.2 7079.8 351.1 6994.9 N 1092.9 W .62 7615.7 7546.7 7117.0 7119.6 351.1 7034.4 N 1098.0 W .83 7646.6 7577.6 7156.2 7158.8 351.1 7073.4 N 1102.5 W .64 7678.4 7609.4 7194.8 7197.3 351.2 7111.8 N 1106.4 W [1150 [1200 [1250 il300 L1350 .0 .0 .0 .0 .0 49.11 354.95 49.28 354.75 49.34 354.47 49.59 354.46 49.76 354.33 .76 7711.1 7642.1 7232.7 7235.1 351.2 7149.5 N 1109.8 W .47 7743.7 7674.7 7270.5 7272.9 351.2 7187.2 N 1113.2 W .44 7776.3 7707.3 7308.4 7310.8 351.2 7225.0 N 1116.7 W .49 7808.8 7739.8 7346.4 7348.7 351.2 7262.8 N 1120.4 W .39 7841.2 7772.2 7384.5 7386.7 351.2 7300.7 N 1124.1 W L1400 L1450 L1500 L1550 t1600 .0 .0 .0 .0 .0 50.11 354.46 50.46 354.46 51.03 354.57 49.93 356.30 48.54 357.22 .74 7873.4 7804.4 7422.7 7425.0 351.3 7338.8 N 1127.9 W .70 7905.3 7836.3 7461.2 7463.4 351.3 7377.1 N 1131.6 W .14 7936.9 7867.9 7499.9 7502.0 351.3 7415.6 N 1135.3 W .45 7968.8 7899.8 7538.4 7540.5 351.3 7454.1 N 1138.4 W .12 8001.4 7932.4 7576.2 7578.2 351.3 7491.9 N 1140.5 W ].1650.0 47.06 357.77 11700.0 46.51 358.77 11750.0 45.33 358.98 11800.0 45.43 357.89 11850.0 43.77 357.92 3.07 8035.0 7966.0 7613.1 7615.0 351.4 7528.9 N 1142.1 W 1.83 8069.2 8000.2 7649.3 7651.2 351.4 7565.3 N 1143.2 W 2.37 8104.0 8035.0 7685.0 7686.8 351.4 7601.2 N 1143.9 W 1.56 8139.1 8070.1 7720.4 7722.1 351.5 7636.8 N 1144.9 W 3.33 8174.7 8105.7 7755.4 7757.0 351.5 7671.9 N 1146.2 W A Gy r od a t a D i r e c t i o n a i S u rv e y RCO ALASKA INC. 'ELL: 1, 4.5" TUBING ,ocation: E PAD, SAMBUCA, 'ob Number: AKl198GCE508 PRUDHOE BAY FIELD, ALASKA Page 10 [EASURED I N C L AZIMUTH DOGLEG DEPTH SEVERITY feet deg. deg. deg./ 100 ft. VERTICAL SUBSEA VERTICAL CLOSURE DEPTH DEPTH SECTION DIST. AZIMUTH feet feet feet feet deg. HORIZONTAL COORDINATES feet 1900.0 42.73 358.25 2.11 1950.0 40.65 358.70 4.2]. 2000.0 37.96 359.39 5.45 2050.0 35.78 359.01 4.38 2100.0 35.17 358.53 1.34 8211.2 8142.2 7789.5 7791.0 351.5 8248.5 8179.5 7822.6 7824.1 351.6 8287.2 8218.2 7854.1 7855.5 351.6 8327.2 8258.2 7883.9 7885.2 351.6 8367.9 8298.9 7912.7 7914.0 351.6 7706.1 N 1147.3 W 7739.3 N 1148.2 W 7771.0 N 1148.8 W 7801.0 N 1149.2 W 7830.0 N 1149.8 W 2].50.0 34.52 358.07 1.42 .2200.0 34.15 358.17 .75 .2250.0 33.24 358.22 1.82 .2300.0 32.64 357.98 1.22 .2350.0 31.56 358.03 2.17 8408.9 8339.9 7941.2 7942.4 35]..7 8450.2 8381.2 7969.2 7970.4 351.7 8491.8 8422.8 7996.8 7997.9 351.7 8533.8 8464.8 8023.9 8025.0 351.7 8576.1 8507.1 8050.3 8051.4 351.8 7858.6 N 1].50.6 W 7886.8 N 1151.6 W 7914.5 N 1152.4 W 7941.6 N ].153.3 W 7968.2 N 1154.3 W _2400.0 31.27 357.90 .60 _2450.0 31.26 357.48 .43 _2500.0 30.24 357.75 2.04 ~2550.0 28.39 358.].6 3.73 .2600.0 27.27 358.42 2.26 8618.8 8549.8 8076.3 8077.3 351.8 8661.5 8592.5 8102.1 8103.1 351.8 8704.5 8635.5 8127.6 8128.5 351.8 8748.1 8679.1 8152.0 8152.9 351.8 8792.3 8723.3 8175.2 8176.1 351.9 7994.2 N 1155.2 W 8020.2 N 1156.2 W 8045.7 N 1157.3 W 8070.2 N 1158.2 W 8093.5 N 1158.9 W t. 2650.0 26.24 358.44 2.07 L2700.0 24.76 359.10 3.01 L2750.0 23.77 359.96 2.10 [2800.0 22.25 359.72 3.04 [2850.0 22.05 359.93 .44 8837.0 8768.0 8197.6 8198.4 351.9 8882.1 8813.1 8219.0 8219.8 351.9 8927.7 8858.7 8239.4 8240.1 351.9 8973.7 8904.7 8258.8 8259.5 351.9 9020.0 8951.0 8277.5 8278.2 351.9 8116.0 N 1159.5 W 8137.5 N 1160.0 W 8158.1 N 1160.1 W 8177.6 N 1160.2 W 8196.5 N 1160.2 W L2900.0 22.32 .24 .60 L2950.0 22.24 1.37 .87 L3000.0 21.58 358.80 2.33 9066.3 8997.3 8296.2 8296.9 352.0 9112.6 9043.6 8315.0 8315.6 352.0 9159.0 9090.0 8333.5 8334.1 352.0 8215.4 N 1160.2 W 8234.3 N 1159.9 W 8253.0 N 1159.9 W ?inal Station Closure: Distance: 8334.07 ft Az: 352.00 deg. A Gy r o d a t a D i r e c t i o n a i S u rv e y for ARCO ALASKA INC. WELL: 1, 4.5" TUBING Location: E PAD, SAMBUCA, PRUDHOE BAY FIELD, ALASKA ob Number: AKl198GCE508SS un Date: 8-Nov-98 10:19:51 urveyor: TOM STODDARD alculation Method: MINIMUM CURVATURE urvey Latitude: 70.345000 deg. N ubs-sea Correction from Vertical Reference: 69 ft. .zimuth Correction: .yro: Bearings are Relative to True North. 'roposed Well Direction: 352.670 deg 'ertical Section Calculated from Well Head Location ilosure Calculated from Well Head Location [orizontal Coordinates Calculated from Local Horizontal Reference A Gy r o d a t a D i r e c t i o n a i S u r ve y .RCO ALASKA INC. IELL: 1, 4.5" TUBING ,ocation: E PAD, SAMBUCA, 'ob Number: AKl198GCE508SS PRUDHOE BAY FIELD, ALASKA Page SUBSEA I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL VERTICAL CLOSURE SEVERITY DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet -69.0 0.00 0.00 0.0 .21 ].89.84 100.0 .29 282.91 200.0 .65 270.75 300.0 1.24 270.91 0.00 0.0 0.0 0.0 0.0 .21 69.0 .0 .3 189.8 .13 169.0 .2 .8 277.6 .40 269.0 .3 1.7 275.3 .62 369.0 .5 3.6 272.5 0.0 N 0.0 E .0 N .2 W .1 N .6 W .1 N 1.4 W .1 N 3.0 W 400.0 1.97 272.81 500.0 2.87 269.93 600.0 3.84 267.79 700.0 4.66 267.38 800.0 5.70 267.65 .74 469.0 1.0 6.8 272.3 91 569.0 1.6 11.5 271.8 .98 669.0 2.2 17.9 270.7 .82 769.0 2.8 25.7 269.7 1.04 869.0 3.6 35.2 269.1 .2 N 5.8 W .3 N 10.0 W .2 N 15.9 W .2 S 23.3 W .6 S 32.4 W 900.0 7.40 287.33 1000.0 8.97 301.11 1100.0 10.77 305.37 1200.0 13.20 309.19 1300.0 15.58 312.81 3.05 969.0 6.8 46.8 271.5 2 .40 1069.0 14.5 60.6 277.2 1.94 1169.0 25.9 77. 1 283.3 2.52 1269.0 40.9 97.4 288.7 2.35 1369.0 59. 9 121.7 293. 6 1.7 N 43.4 W 7.4 N 56.1 W 17.1 N 70.6 W 30.0 N 87.4 W 46.6 N 106.6 W 1400.0 16.68 316.31 1500.0 17.24 318.46 1600.0 18.12 320.64 1700.0 19.71 322.13 1800.0 21.48 320.74 1.12 1469.0 82.8 148.5 297.8 67.1 N 127.3 W .80 1569.0 107.7 176.4 301.2 89.5 N 147.9 W 1.12 1669.0 134.3 205.6 304.0 113.7 N 168.5 W 1.60 1769.0 163.6 236.8 306.5 140.5 N 189.8 W 2.25 1869.0 195.6 289.2 308.6 169.8 N 213.0 W 1900.0 26.16 320.36 2000.0 29.43 324.21 2100.0 29.95 328.11 2200.0 31.43 331.47 2300.0 33.61 334.62 4.44 1969.0 232.9 331.6 310.2 203.8 N 241.2 W 3.03 2069.0 278.8 378.9 311.9 245.8 N 274.0 W 1.73 2169.0 329.8 427.2 313.8 293.2 N 305.8 W 2.21 2269.0 384.3 501.5 315.7 344.3 N 335.4 W 2.28 2369.0 444.4 553.9 317.7 401.2 N 364.3 W A Gy r o d a t a D i r e c t i o n a i S u rv e y RCO ALASKA INC. ELL: 1, 4.5" TUBING ocation: E PAD, SAMBUCA, ob Number: AKl198GCE508SS PRUDHOE BAY FIELD, ALASKA Page SUBSEA I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL VERTICAL CLOSURE SEVERITY DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 2400.0 34.77 338.19 2500.0 36.13 342.29 2600.0 38.83 343.64 2700.0 41.49 348.01 2800.0 43.18 350.25 2.04 2469.0 509.8 607.8 319.8 463.6 N 391.8 W 2.08 2569.0 579.2 689.8 321.9 530.5 N 415.4 W 2.36 2669.0 654.5 747.4 324.1 603.6 N 437.6 W 3.26 2769.0 738.2 838.2 326.2 685.3 N 458.4 W 1.15 2869.0 829.5 932.7 328.5 775.2 N 475.3 W 2900.0 44.75 350.35 3000.0 47.12 351.00 3100.0 49.83 352.51 3200.0 52.45 355.20 3300.0 56.24 356.77 1.18 2969.0 925.7 1031.3 330.5 870.2 N 491.5 W 1.80 3069.0 1028.9 1099.8 332.4 972.0 N 508.4 W 2.22 3169.0 1141.3 1206.2 334.2 1083.3 N 524.5 W 2.95 3269.0 1264.4 1354.2 336.0 1205.6 N 537.8 W 1.22 3369.0 1406.3 1471.1 337.9 1347.4 N 547.5 W 3400.0 55.85 358.85 3500.0 54.94 356.49 3600.0 53.65 354.52 3700.0 53.82 354.10 3800.0 54.01 353.50 1.79 3469.0 1556.2 1628.5 339.7 1497.9 N 553.4 W 1.58 3569.0 1700.5 1746.4 341.2 1642.6 N 558.7 W .47 3669.0 1839.1 ].904.1 342.2 1780.9 N 570.3 W .54 3769.0 1974.4 2022.4 343.1 1915.6 N 583.5 W .76 3869.0 2111.0 2141.5 343.7 2051.5 N 598.3 W 3900.0 54.10 352.57 4000.0 53.78 352.24 4100.0 53.02 353.62 4200.0 53.04 353.24 4300.0 53.70 352.13 .99 3969.0 2250.2 2301.9 344.3 2189.6 N 615.2 W .39 4069.0 2386.3 2421.6 344.8 2324.5 N 633.1 W 1.32 4169.0 2521.3 2580.4 345.2 2458.4 N 650.1 W .45 4269.0 2653.9 2699.1 345.6 2590.2 N 665.2 W .50 4369.0 2788.4 2818.8 345.9 2723.6 N 682.4 W 4400.0 52.82 354.18 4500.0 53.53 354.03 4600.0 52.63 355.34 4700.0 52.77 354.61 4800.0 53.03 354.56 1.03 4469.0 2922.7 2977.7 346.3 2856.9 N 698.7 W .44 4569.0 3056.3 3097.0 346.6 2989.8 N 712.6 W .29 4669.0 3188.4 3215.2 346.9 3121.4 N 724.5 W .44 4769.0 3319.2 3372.8 347.2 3251.9 N 736.1 W 1.08 4869.0 3452.3 3491.9 347.5 3384.4 N 749.1 W A Gy r o d a t a D i r e c t i o n a i S u rv e y RCO ALASKA INC. ELL: 1, 4.5" TUBING ocation: E PAD, SAMBUCA, ob Number: AKl198GCES08SS PRUDHOE BAY FIELD, ALASKA Page SUBSEA I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL VERTICAL SEVERITY DEPTH SECTION deg./ feet feet 100 ft. CLOSURE DIST. AZIMUTH feet deg. HORIZONTAL, COORDINATES feet 4900.0 53.19 354.91 5000.0 52.39 355.27 51.00.0 53.05 353.85 5200.0 53.87 353.58 5300.0 53.22 354.96 .72 4969.0 2.54 5069.0 .72 5169.0 1.29 5269.0 .64 5369.0 3583.8 3718.1 3849.1 3984.7 4118.7 3610.4 347.8 3769.2 348.1 3888.1 348.3 4008.6 348.4 4167.9 348.6 3515.5 N 760.7 W 3649.4 N 772.2 W 3779.8 N 784.7 W 3914.6 N 800.1 W 4048.0 N 813.0 W 5400.0 53.56 355.08 5500.0 54.38 353.75 5600.0 52.97 355.90 5700.0 53.81 354.84 5800.0 55.15 353.59 .30 5469.0 .84 5569.0 .55 5669.0 .86 5769.0 1.05 5869.0 4253 .4 4390.7 4525.9 4660 .3 4800.0 4287.7 348.8 4408.6 349.0 4568.3 349.2 4688.3 349.4 4810.1 349.5 4182.4 N 824.6 W 4319.1 N 837.8 W 4453.9 N 849.9 W 4588.0 N 860.6 W 4727.0 N 874.8 W 5900.0 54.26 354.57 6000.0 54.03 354.89 6100.0 54.87 354.22 6200.0 53.44 355.40 6300.0 53.65 356.49 1.35 5969.0 3.36 6069.0 .98 6169.0 2.74 6269.0 1.63 6369.0 4937.0 5079.3 5218.3 5359.2 5491.4 4971.2 349.7 5093.7 349.8 5255.8 349.9 5377.4 350.0 5536.3 350.2 4863.4 N 888.1 W 5005.2 N 902.1 W 5143.6 N 914.9 W 5283.9 N 928.8 W 5416.1 N 937.0 W 6400.0 52.60 356.38 6500.0 53.15 355.51 6600.0 51.74 355.81 6700.0 52.04 354.72 6800.0 52.24 353.78 2.15 6469.0 .75 6569.0 .45 6669.0 .49 6769.0 .56 6869.0 5627.0 5758.2 5889.0 6016.4 6144.6 5656.1 350.3 5775.0 350.5 5893.7 350.6 6050.6 350.7 6168.8 350.7 5551.7 N 945.8 W 5682.8 N 955.1 W 5813.3 N 965.2 W 5940.5 N 975.8 W 6068.0 N 988.9 W 6900.0 51.53 355.05 7000.0 52.01 354.43 7100.0 52.13 353.85 7200.0 52.78 353.31 7300.0 53.05 353.11 .70 6969.0 .48 7069.0 .51 7169.0 .43 7269.0 .20 7369.0 6271.6 6398.5 6526.9 6657.2 6789.3 6286.2 350.8 6403.8 350.9 6561.4 351.0 6680.5 351.0 6800.1 351.1 6194.5 N 1.000.7 W 6321.0 N 101.2.3 W 6448.8 N 1025.3 W 6578.3 N 1039.8 W 6709.4 N 1055.5 W A Gyro d a t a D i r e c t i o n a I S u rve y ~RCO ALASKA INC. IELL: 1, 4.5" TUBING Jocation: E PAD, SAMBUCA, rob Number: AKl198GCE508SS PRUDHOE BAY FIELD, ALASKA Page SUBSEA I N C L AZIMUTH DEPTH feet deg. deg. DOGLEG VERTICAL VERTICAL CLOSURE SEVERITY DEPTH SECTION DIST. AZIMUTH deg./ feet feet feet deg. 100 ft. HORIZONTAL COORDINATES feet 7400.0 52.70 352.61 7500.0 53.46 352.22 7600.0 50.09 354.45 7700.0 49.33 354.53 7800.0 50.06 354.45 · 23 7469.0 6921.0 6959.4 351.1 .18 7569.0 7055.1 7079.8 351.1 3.51 7669.0 7183.3 7197.3 351.2 · 45 7769.0 7299.9 7310.8 351.2 .69 7869.0 7417.5 7425.0 351.3 6840.1 N 1072.2 W 6973.0 N 1089.9 W 7100.4 N 1105.3 W 7216.5 N 1115.9 W 7333.6 N 1127.4 W 7900.0 49.92 356.30 8000.0 46.51 358.76 8100.0 44.03 357.91 8200.0 39.23 359.06 8300.0 35.16 358.52 3.45 7969.0 7538.7 7578.2 351.3 1.84 8069.0 7649.1 7651.2 351.4 3.04 8169.0 7749.8 7757.0 351.5 4.87 8269.0 7839.3 7855.5 351.6 1.34 8369.0 7913.5 7942.4 351.6 7454.3 N 1138.4 W 7565.0 N 1143.2 W 7666.2 N 1146.0 W 7756.1 N 1148.5 W 7830.8 N 1149.8 W 8400.0 33.73 358.19 8500.0 31.74 358.02 8600.0 31.08 357.53 8700.0 27.86 358.28 8800.0 25.19 358.91 1.23 8469.0 7981.7 7997.9 351.7 2.01 8569.0 8045.9 8051.4 351.8 .71 8669.0 8106.6 8128.5 351.8 3.03 8769.0 8163.0 8176.1 351.8 2.73 8869.0 8212.8 8219.8 351.9 7899.3 N 1152.0 W 7963.7 N 1154.1 W 8024.6 N 1156.4 W 8081.2 N 1158.5 W 8131.3 N 1159.8 W 8900.0 22.41 359.74 9000.0 22.32 .31 9090.0 21.58 358.80 2.95 8969.0 8256.8 8259.5 351.9 .61 9069.0 8297.3 8315.6 352.0 2.33 9159.0 8333.5 8334.1 352.0 8175.6 N 1160.2 W 8216.5 N 1160.2 W 8253.0 N 1159.9 W ~inal Station Closure: Distance: 8334.07 ft Az: 352.00 deg. 4. QUALITY CONTROL QUALITY CONTROL REPORT JOB NUMBER: AK1198GCE508 TOOL NUMBER: 786 MAXIMUM GYRO TEMPERATURE: 83.26 C MAXIMUM AMBIENT TEMPERATURE: 93.98 C MAXIMUM INCLINATION: 56.77 AVERAGE AZIMUTH: 352.00 WIRELINE REZERO VALUE: ! REZERO ERROR/K: N/A CALIBRATION USED FOR FIELD SURVEY: 2535 CALIBRATION USED FOR FINAL SURVEY: 2535 PRE JOB MASS BALANCE OFFSET CHECK: -.85 POST JOB MASS BALANCE OFFSET CHECW: -.78 USED O.O/N/A CONTINUOUS CONDITION OF SHOCK WATCHES UPON ARRIVAL AT RIG: UPON COMPLETION OF SURVEY: UPON RETURN TO ATLAS: OK OK OK BOTTOM LINE COMPARISIONS M.D. INC AZIMUTH TVD NORTHING EASTING MWD 13005 21.36 357.57 9181.81 8257 -1048.0 1997 ,qyro 13000 21.47 359.53 9158.70 8260 -1141.9 FINAL SURVEY 13000 21.58 358.80 9159.00 8253 -1159.9 FUNCTION TEST JOB NUMBER: AK1198GCE508 5 Survey stations were collected at the measured depth shown below. The tables show the repeatability of the gyro tool in both inclination and azimuth at one measured depth. INCLINATION M.D. f1 1 2 3 4 5 1300 13.83 13.83 13.83 13.83 13.83 AZIMUTH M.D. ft 1 2 3 4 5 1300 310.19 310.27 31.0.15 310.09 310.24 5. EQUIPMENT AND CHRONOLOGICAL REPORT EQUIPMENT REPORT JOB NUMBER: AK1198GCE508 DOWNHOLE ELECTRONICS SURFACE ELECTRONICS PRIMARY TOOL No. 786 GYRO SECTION DATA SECTION POWER SECTION COMPUTER A0212 POWER SUPPLY C0111 PRINTER C0083 INTERFACE A0433 A0085 A0079 A0143 BACKUP TOOL No. 761 GYRO SECTION DATA SECTION POWER SECTION COMPUTER A0149 POWER SUPPLY C0089 PRINTER C0086 INTERFACE A0467 A0107 A0029 A0055 WIRELINE COMPANY: SCHLUMBERGER CABLE SIZE: 7/32" RUNNING GEAR 2.5" HOUSING w/ECCENTRIC BAR TOTAL LENGTH OF TOOL: 24' MAXIMUM O.D.: 3" INCHES TOTAL WEIGHT OF TOOL: 300 POUNDS CHRONOLOGICAL REPORT JOB NUMBER · AK1198GCE508 SATURDAY, 11/07/98 23:00 FINISH 506 AND 507 SUNDAY, 11/08/98 08:45 09:45 10:45 14:00 17:00 18:00 19:00 22:00 TO LOCATION RU SCHLUMBERGER, WARM UP TOOL PICK UP GYRO, PRESSURE TEST LUBRICATOR, RIH SURVEY IN TO 13300' SURVEY OUT. LD TOOL. RETURN ATLAS CHECK TOOL, PROCESS SURVEY. MONDAY, 11/09/98 12'00 STANDBY TO RERUN JOB 505. THURSDAY, 11/12/98 11:00 TO ANCHORAGE. A Gy roda t a D i r e c t i ona i Survey for ARCO ALASKA INC. Job Number: AKGCE508 SAMBUCA (E PAD), WELL NO. 1 PRUDHOE BAY FIELD, W.O.A., ALASKA Run Date: 8-Nov-98 10:45:00 Surveyor: TOM STODDARD Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.300000 deg. N ORIGINAL Sub-sea Correction from Vertical Reference: 69 ft. Azimuth Correction: Gyro: Bearings are Relative to True North Proposed Well Direction: 352.670 deg Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference RECEIVED DEC 1 4 1998 AJaska OJ[& Gas Cons. Commission Anchorage ARCO ALASKA INC. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O.A., Job Number: AKGCE508 A Gy r o d a t a 1 ALASKA Directional Survey MEASURED DEPTH feet N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 0.0 100.0 200.0 300.0 400.0 0.00 0.00 0.0 .30 275.13 100.0 .29 286.41 200.0 .81 263.71 300.0 1.43 274.14 400.0 0.0 .1 .2 .3 .6 .00 0.0 0.0 .30 .3 275.1 .06 .8 278.8 .55 1.7 273.7 .65 3.6 271.9 0.00 N 0.00 E .02 N .26 W .12 N .76 W .11 N 1.70 W .12 N 3.64 W 500.0 600.0 700.0 800.0 900.0 2.21 272.21 499.9 3.16 268.92 599.8 4.14 267.30 699.6 4.88 267.41 799.3 6.05 267.76 898.8 1.2 1.8 2.4 3.0 3.8 .78 6.8 272.4 .97 11.5 271.5 .99 17.9 270.3 .74 25.7 269.4 .16 35.2 268.9 .29 N 6.81 W .31 N 11.49 W .09 N 17.85 W .27 S 25.71 W .67 S 35.23 W 1000.0 1100.0 1200.0 1300.0 1350.0 1400.0 1450.0 1500.0 1550.0 1600.0 7.97 295.45 998.1 9.37 303.34 1097.0 11.28 306.12 1195.4 13.83 310.19 1293.0 15.00 311.70 1341.4 16.01 313.64 1389.6 16.50 315.38 1437.6 16.78 316.80 1485.5 16.99 317.87 1533.3 17.32 318.66 1581.1 8.0 17.1 29.1 44.7 54.0 64.2 75.2 86.7 98.6 110.7 3.83 46.8 272.6 1.84 60.6 279.1 1 . 98 77 . 1 284 . 9 2.69 97.4 290.0 2.47 109.1 292.3 2 . 26 121 . 7 294 . 5 1.39 135.0 296.5 . 98 148 . 5 298 . 4 . 75 162 . 3 300 . 1 .81 176.4 301.6 2.10 N 46.75 W 9.55 N 59.81 W 19.79 N 74.52 W 33.28 N 91.55 W 41.44 N 100.95 W 50.50 N 110.77 W 60.31 N 120.75 W 70.63 N 130.68 W 81.31 N 140.52 W 92.31 N 150.34 W 1650.0 1700.0 1750.0 1800.0 1850.0 17.74 319.72 1628.8 18.20 320.80 1676.3 18.96 321.63 1723.7 19.74 322.15 1770.9 20.34 321.89 1817.9 123.3 136.3 149.9 164.1 178.9 1.05 190.8 302.9 1 . 14 205 · 6 304 . 2 1.62 220.9 305.4 1.60 236.8 306.6 1.20 253 .4 307.6 103.71 N 160.18 W 115.57 N 170.03 W 127.99 N 180.01 W 141.02 N 190.23 W 154.53 N 200.78 W A Gyrodata ARCO ALASKA INC. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O.A., Job Number: AKGCE508 1 ALASKA MEASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet 1900.0 1950.0 2000.0 2050.0 2100.0 2150.0 2200.0 2250.0 2300.0 2350.0 2400.0 2450.0 2500.0 2550.0 2600.0 2650.0 2700.0 2750.0 2800.0 2850.0 2900.0 2950.0 3000.0 3050.0 3100.0 21.29 320.80 1864.6 23.31 320.12 1910.9 25.58 320.15 1956.4 27.66 320.89 2001.1 29.07 322.86 2045.1 29.72 325.32 2088.6 29.74 326.61 2132.1 29.98 328.37 2175.4 30.41 329.93 2218.6 31.27 331.28 2261.6 32.22 332.38 2304.1 33.21 333.94 2346.2 33.95 335.17 2387.8 34.49 336.52 2429.2 34.78 338.25 2470.3 35.17 340.45 2511.3 35.75 341.92 2552.0 36.66 342.80 2592.3 37.74 343.31 2632.2 38.90 343.67 2671.4 39 . 78 344 . 89 2710 . 1 40 . 89 347 . 20 2748 . 2 41 . 97 348 . 65 2785 . 7 42.61 349.63 2822.7 43 . 04 350 · 23 2859.3 194.1 210.1 227.5 246.5 266.9 288.5 310.6 333.1 356.2 380.0 404.5 430.0 456.3 483.2 510.6 538.5 566.9 596.0 625.8 656.4 687.8 719.9 752.9 786.5 820.4 Directional DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. 2.05 270.6 308.5 4.08 289.2 309.3 4.53 309.6 310.0 4.22 331.6 310.7 3.38 354.9 311.4 2.75 378.9 312.2 1.28 403.1 313.1 1.81 427.2 313.9 1.79 451.5 314.8 2.20 476.2 315.6 2.22 501.5 316.4 2.60 527.5 317.3 2.01 553.9 318.1 1.87 580.8 319.0 2.05 607.8 319.8 2.64 634.9 320.7 2.06 662.1 321.6 2.11 689.8 322.4 2.23 718.2 323.3 2.37 747.4 324.1 2.35 777.2 324.9 3.73 807.5 325.7 2.89 838.2 326.6 1.83 869.4 327.4 1.19 900.8 328.3 Survey HORIZONTAL COORDINATES feet 168.40 N 211.87 W 183.02 N 223.95 W 198.90 N 237.21 W 216.20 N 251.45 W 234.89 N 266.11 W 254.76 N 280.49 W 275.31 N 294.37 W 296.31 N 307.75 W 317.90 N 320.64 W 340.23 N 333.22 W 363.42 N 345.64 W 387.53 N 357.83 W 412.50 N 369.71 W 438.16 N 381.21 W 464.39 N 392.14 W 491.21 N 402.25 W 518.66 N 411.60 W 546.81 N 420.54 W 575.73 N 429.35 W 605.45 N 438.16 W 635.96 N 667.36 N 699.72 N 732.76 N 766.22 N 446.75 W 454.55 W 461.46 W 467.80 W 473.74 W ARCO ALASKA INc. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O~A., Job Number: AKGCE508 A G y r o d a t a 1 ALAS KA MEASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet 3150.0 3200.0 3250.0 3300.0 3350.0 3400.0 3450.0 3500.0 3550.0 3600.0 3650.0 3700.0 3750.0 3800.0 3850.0 3900.0 3950.0 4000.0 4050.0 4100.0 4150.0 4200.0 4250.0 4300.0 4350.0 43.55 350.31 2895.7 44.13 350.33 2931.8 44.71 350.35 2967.5 45.51 350.37 3002.8 46.34 350.60 3037.6 47.19 351.04 3071.8 47.84 351.59 3105.6 48.84 352.13 3138.8 49.91 352.54 3171.4 50.50 353.16 3203.4 51.03 354.21 3235.0 52.28 355.12 3266.0 54.06 355.91 3296.0 55.42 356.18 3324.8 56.09 356.44 3353.0 56.34 357.02 3380.8 56.77 357.57 3408.3 56.55 357.97 3435.8 55.87 358.92 3463.6 55.74 358.59 3491.7 55.27 358.05 3520.0 55.09 357.17 3548.6 54.87 356.22 3577.3 54.35 355.28 3606.2 53.90 354.62 3635.5 854.7 889.3 924.2 959.6 995.5 1031.9 1068.8 1106.1 1144.1 1182.5 1221.2 1260.4 1300.4 1341.1 1382.4 1423.8 1465.4 1507.0 1548.4 1589.5 1630.5 1671.4 1712.3 1753 .0 1793.4 Directional DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg. / feet deg. 100 ft. 1.03 932.7 329.1 1.16 965.1 329.8 1.16 997.9 330.5 1.60 1031.3 331.2 1.69 1065.3 331.8 1.81 1099.8 332.4 1.54 1134.7 333.0 2.16 1170.2 333.6 2.23 1206.2 334.2 1.52 1242.6 334.8 1.95 1279.3 335.3 2.86 1316.4 335.9 3.79 1354.2 336.5 2.75 1392.7 337.0 1.41 1431.8 337.6 1.08 1471.1 338.1 1.26 1510.6 338.6 .81 1550.1 339.1 2.08 1589.4 339.6 .60 1628.5 340.1 1.29 1667.7 340.6 1.49 1707.0 341.0 1.61 1746.4 341.3 1.85 1785.9 341.6 1.40 1825.4 341.9 Survey HORIZONTAL COORDINATES feet 800.02 N 479.54 W 834.16 N 485.36 W 868.66 N 491.23 W 903.58 N 497.16 W 939.01 N 503.09 W 974.97 N 1011.42 N 1048.40 N 1086.01 N 1124.12 N 1162.62 N 1201.66 N 1241.56 N 1282.29 N 1323.53 N 1365.02 N 1406.70 N 1448.44 N 1489.98 N 1531.32 N 1572.52 N 1613.53 N 1654.41 N 1695.06 N 1735.41 N 508.91 W 514.47 W 519.76 W 524.82 W 529.60 W 533.86 W 537.50 W 540.63 W 543.45 W 546.11 W 548.48 W 550.45 W 552.07 W 553.20 W 554.10 W 555.31 W 557.02 W 559.38 W 562.40 W 565.97 W ARCO ALASKA INC. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O.A., Job Number: AKGCE508 A G y r o d a t a 1 ALAS KA Directional Page MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 4400 . 0 53 . 70 354 . 52 3665 . 1 4450 . 0 53 . 32 354 . 52 3694 . 8 4500 . 0 53 . 44 354 . 45 3724 . 6 4550 . 0 53 . 79 354 . 17 3754 . 3 4600 . 0 53 . 84 354 . 02 3783 . 8 1833.8 1873.9 1914.1 1954.3 1994.6 .43 1864.8 342.2 .75 1904.1 342.5 .27 1943.3 342.7 .82 1982.8 342.9 .27 2022.4 343.2 1775.58 N 569.79 W 1815.59 N 573.63 W 1855.54 N 577.49 W 1895.60 N 581.48 W 1935.74 N 585.63 W 4650 . 0 53 . 79 353 . 81 3813 . 3 4700 . 0 53 . 67 353 . 62 3842 . 9 4750 . 0 54 . 05 353 . 48 3872 . 4 4800 . 0 54 . 42 353 . 30 3901 . 6 4850 . 0 54 . 43 352 . 92 3930 . 7 2035.0 2075.3 2115.7 2156.2 2196.9 .35 2062.0 343.4 .40 2101.7 343.6 .81 2141.5 343.8 .79 2181.5 343.9 .61 2221.7 344.1 1975.87 N 2015.94 N 2056.06 N 2096.36 N 2136.74 N 589.91 W 594.32 W 598.86 W 603.53 W 608.40 W 4900.0 54.37 352.54 3959.8 4950.0 53.49 352.63 3989.2 5000.0 53.48 352.49 4019.0 5050.0 53.84 352.26 4048.6 5100.0 53.75 352.22 4078.2 2237.6 2278.0 2318.2 2358.4 2398.8 .63 2261.9 344.3 .78 2301.9 344.4 .22 2341.7 344.5 .81 2381.6 344.7 .19 2421.6 344.8 2177.07 N 2217.14 N 2256.99 N 2296.91 N 2336.89 N 613.55 W 618.76 W 623.97 W 629.31 W 634.76 W 5150.0 53.48 352.40 4107.8 5200.0 53.48 352.98 4137.6 5250.0 53.03 353.62 4167.5 5300.0 52.73 353.57 4197.7 5350.0 53.18 353.52 4227.8 2439.0 2479.2 2519.3 2559.1 2599.0 .61 2461.5 344.9 .95 2501.3 345.1 .36 2540.9 345.2 .60 2580.4 345.3 .90 2619.9 345.4 2376.78 N 2416.63 N 2456.42 N 2496.05 N 2535.70 N 640.14 W 645.25 W 649.93 W 654.37 W 658.86 W 5400.0 53.03 353.37 4257.8 5450.0 53.06 353.02 4287.9 5500.0 53.33 352.66 4317.8 5550.0 53.66 352.28 4347.6 5600.0 53.71 352.07 4377.2 2639.0 2679.0 2719.0 2759.2 2799.5 .39 2659.5 345.6 .56 2699.1 345.7 .80 2738.8 345.8 .89 2778.8 345.9 .35 2818.8 346.0 2575.43 N 2615.10 N 2654.82 N 2694.66 N 2734.57 N 663.43 W 668.16 W 673.15 W 678.42 W 683.91 W ARCO ALASKA INC. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O.A., Job Number: AKGCE508 A G y r o d a t a D i 1 ALASKA r e c t i o n a 1 Survey MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 5650 . 0 53 . 59 352 . 46 4406 . 8 5700 . 0 53 . 08 353 . 59 4436 . 7 5750 · 0 52 . 81 354 . 18 4466 . 8 5800 . 0 52 . 97 354 . 19 4497 . 0 5850 . 0 53 . 32 353 . 96 4526 . 9 2839.8 2879.9 2919.7 2959.6 2999.6 .66 2858.8 346.0 .09 2898.6 346.1 · 09 2938.2 346.2 .32 2977.7 346.4 .79 3017.3 346.5 2774.48 N 689.33 W 2814.29 N 694.20 W 2853.96 N 698.45 W 2893.63 N 702.49 W 2933.42 N 706.62 W 5900.0 53.53 353.92 4556.7 5950.0 53.52 354.19 4586.5 6000.0 52.52 354.97 4616.5 6050.0 52.60 355.25 4646.9 6100.0 52.64 355.38 4677.3 3039.7 3079.9 3119.9 3159.5 3199.2 .43 3057.1 346.6 .45 3097.0 346.7 2.34 3136.6 346.8 .47 3175.9 346.9 .22 3215.2 347.0 2973.35 N 710.86 W 3013.34 N 715.02 W 3053.11 N 718.80 W 3092.66 N 722.18 W 3132.26 N 725.43 W 6150.0 52.63 354.99 4707.6 6200.0 52.59 354.78 4738.0 6250.0 52.76 354.62 4768.3 6300.0 53.04 354.30 4798.5 6350.0 53.23 354.26 4828.5 3238.9 3278.6 3318.3 3358.2 3398.2 .62 3254.5 347.1 .34 3293.9 347.2 .43 3333.3 347.2 .76 3372.8 347.3 .39 3412.6 347.4 3171.86 N 3211.42 N 3251.01 N 3290.71 N 3330.51 N 728 . 77 W 732.31 W 735.98 W 739.83 W 743.82 W 6400.0 53.40 354.28 4858.3 6450.0 52.35 355.09 4888.5 6500.0 52.55 355.13 4919.0 6550.0 53.00 354.88 4949.2 6600.0 53.29 354.93 4979.2 3438.3 3478.1 3517.7 3557.5 3597.5 · 33 3452.4 347.5 .45 3491.9 347.6 .40 3531.2 347.7 · 98 3570.7 347.7 .58 3610.4 347.8 3370.41 N 3410.10 N 3449.60 N 3489.26 N 3529.11 N 747.82 W 751.52 W 754.90 W 758.36 W 761.92 W 6650.0 53.57 355.06 5009.0 6700.0 53.67 355.15 5038.7 6750.0 52.39 355.27 5068.7 6800.0 52.38 354.97 5099.3 6850.0 52.77 354.32 5129.6 3637.6 3677.8 3717.7 3757.3 3797.0 .60 3650.3 347.9 .24 3690.2 348.0 2.56 3729.8 348.1 .49 3769.2 348.1 1.30 3808.6 348.2 3569.11 N 3609.22 N 3649.03 N 3688.50 N 3728.03 N 765.42 W 768.86 W 772.20 W 775.57 W 779.28 W ~RCO ALASKA INc. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.0.A., Job Number: AKGCE508 A G y r o d a t a D i 1 ALASKA r e c t i o n a 1 Survey Page MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 6900.0 52.99 353.95 5159.8 6950.0 53.19 353.60 5189.8 7000.0 53.64 353.35 5219.6 7050.0 54.18 353.15 5249.1 7100.0 53.72 353.78 5278.5 3836.8 3876.8 3917.0 3957.4 3997.8 .73 3848.3 348.3 .69 3888.1 348.3 .99 3928.0 348.4 .12 3968.3 348.4 .37 4008.6 348.5 3767.69 N 783.35 W 3807.43 N 787.68 W 3847.32 N 792.24 W 3887.45 N 796.99 W 3927.61 N 801.59 W 7150 . 0 53 . 23 354 . 60 5308 . 3 7200 . 0 52 . 91 354 . 80 5338 . 3 7250 . 0 53 . 21 354 . 95 5368 . 4 7300.0 53.47 355.12 5398.2 7350 . 0 53 . 44 355 . 04 5428 . 0 4037 4077 4117 4157 4198 .9 .9 .8 .9 .0 · 65 4048.6 348.5 .71 4088.3 348.6 · 65 4128 . 0 348 . 6 · 58 4167.9 348 . 7 . 14 4207 . 8 348 . 8 3967.58 N 805.66 W 4007.38 N 809.35 W 4047.19 N 812.92 W 4087.15 N 816.39 W 4127.17 N 819.83 W 7400.0 53.46 355.12 5457.8 7450.0 53.74 355.01 5487.4 7500.0 53.86 354.52 5517.0 7550.0 54.21 354.07 5546.3 7600.0 54.43 353.66 5575.5 4238 4278 4318 4359 4399 .2 .4 .7 .1 .8 .12 4247.7 348.8 .58 4287.7 348.9 .83 4327.9 348.9 .02 4368.2 349.0 .79 4408.6 349.0 4167.19 N 823.27 W 4207.28 N 826.74 W 4247.46 N 830.42 W 4287.73 N 834.44 W 4328.11 N 838.78 W 7650.0 54.13 354.16 5604.7 7700.0 52.69 355.79 5634.5 7750.0 52.93 355.92 5664.7 7800.0 53.22 355.76 5694.8 7850.0 53.40 355.41 5724.6 4440 4480 4520 4560 4600 .3 .4 .2 .1 .2 .01 4449.1 349.1 .88 4489.0 349.1 .53 4528.6 349.2 .62 4568.3 349.2 .68 4608.1 349.3 4368.47 N 843.09 W 4408.46 N 846.61 W 4448.19 N 849.49 W 4488.05 N 852.39 W 4528.03 N 855.48 W 7900.0 53.61 354.99 5754.4 7950.0 54.01 354.68 5783.9 8000.0 54.30 354.22 5813.2 8050.0 54.70 353.83 5842.2 8100.0 55.18 353.57 5870.9 4640.3 4680.6 4721.2 4761.9 4802.8 .79 4648.1 349.4 .94 4688.3 349.4 .96 4728.7 349.4 1.01 4769.2 349.5 1.06 4810.1 349.5 4568.08 N 858.84 W 4608.27 N 862.48 W 4648.61 N 866.40 W 4689.10 N 870.64 W 4729.78 N 875.13 W ARCO ALASKA INC. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O.A., Job Number: AKGCE508 A G y r o d a t a D i 1 ALAS KA r e c t i o n a 1 Survey Page MEASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 8150.0 8200.0 8250.0 8300.0 8350.0 53.41 354.55 5900.1 53.40 354.74 5929.9 54.00 354.64 5959.5 54.80 354.44 5988.6 55.30 354.08 6017.3 4843.4 4883.5 4923.8 4964.4 5005.4 3.88 4850.5 349.6 .31 4890.5 349.6 1.21 4930.7 349.6 1.64 4971.2 349.7 1.15 5012.0 349.7 4770.16 N 4810.13 N 4850.25 N 4890.72 N 4931.49 N 879.33 W 883.08 W 886.81 W 890.68 W 894.78 W 8400.0 8450.0 8500.0 8550.0 8600.0 55.55 354.16 6045.7 53.66 355.06 6074.6 54.04 355.00 6104.1 54.38 354.61 6133.3 54.72 354.28 6162.3 5046 5087 5127 5168 5208 .5 .2 .6 .1 .8 .52 5053.1 349.8 .05 5093.7 349.8 .77 5133.9 349.8 · 93 5174.3 349.9 .86 5214.9 349.9 4972.44 N 5013.02 N 5053.24 N 5093.63 N 5134.17 N 898.99 W 902.82 W 906.32 W 909.99 W 913.94 W 865O.0 8700.0 8750.0 88O0.O 8850.0 55.38 354.01 6191.0 55.05 354.14 6219.5 53.97 354.30 6248.5 53.20 355.89 6278.2 52.36 356.86 6308.5 5249 5290 5331 5371 5411 .8 .8 .5 .7 .5 .38 5255.8 349.9 .68 5296.7 350.0 .17 5337.3 350.0 .00 5377.4 350.0 .27 5417.0 350.1 5174.94 N 5215.79 N 5256.29 N 5296.38 N 5336.11 N 918.12 W 922.36 W 926.46 W 929.90 W 932.42 W 8900.0 8950.0 9000.0 9050.0 9100.0 52.86 356.78 6338.8 53.65 356.50 6368.7 53.96 356.26 6398.3 54.21 356.12 6427.6 52.77 356,42 6457.3 5451 5491 5531 5571 5611 .1 .1 .3 .7 .9 .01 5456.4 350.1 .63 5496.2 350.2 .73 5536.3 350.2 .55 5576.6 350.3 .94 5616.6 350.3 5375.78 N 5415.77 N 5456.04 N 5496.45 N 5536.55 N 934.63 W 936.98 W 939.53 W 942.22 W 944.84 W 9150.0 9200.0 9250.0 9300.0 9350.0 52.33 356.31 6487.7 52.68 355.90 6518.2 52.89 355.66 6548.4 53.27 355.44 6578.5 53.33 355.24 6608.3 5651.5 5691.1 5730.8 5770.7 5810.8 .88 5656.1 350.4 .95 5695.5 350.4 · 56 5735.2 350.4 .84 5775.0 350.5 .34 5814.9 350.5 5576.17 N 5615.75 N 5655.46 N 5695.31 N 5735.26 N 947.35 W 950.05 W 952.98 W 956.08 W 959.33 W ARCO ALASKA INC. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O.A., Job Number: AKGCE508 A G y r o d a t a 1 ALAS KA Directional Survey Page MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. H 0 R I Z 0 N T A L C 0 0 R D I N A T E S feet 9400.0 51.93 355.87 6638.7 9450.0 51.73 355.81 6669.6 9500.0 51.87 355.47 6700.5 9550.0 51.95 355.07 6731.4 9600.0 52.04 354.82 6762.1 585O 5889 5929 5968 6007 .5 .7 .0 .3 .6 .98 5854.5 350.5 .40 5893.7 350.6 .60 5932.8 350.6 .65 5972.0 350.6 .44 6011.3 350.7 5774.88 N 962.41 5814.08 N 965.27 5853.26 N 968.25 5892.48 N 971.50 5931.72 N 974.97 W W W W W 9650.0 52.06 354.38 6792.9 9700.0 51.89 354.02 6823.7 9750.0 52.20 353.71 6854.4 9800.0 52.28 353.86 6885.1 9850.0 51.78 355.01 6915.8 6047 6086 6125 6165 6204 .0 .4 .8 .3 .7 · 69 6050.6 350.7 .67 6090.0 350.7 .80 6129.3 350.7 .29 6168.8 350.8 .07 6208.1 350.8 5970.97 N 978.68 6010.16 N 982.66 6049.36 N 986.87 6088.65 N 991.16 6127.88 N 994.98 W W W W W 9900.0 51.34 355.16 6946.9 9950.0 51.62 355.01 6978.1 10000.0 51.73 354.88 7009.1 10050.0 51.87 354.65 7040.0 10100.0 52.02 354'.41 7070.8 6243 6283 6322 6361 6400 .9 .0 .1 .4 .8 .92 6247.2 350.8 .61 6286.2 350.8 .31 6325.3 350.9 .45 6364.5 350.9 .48 6403.8 350.9 6166.90 N 998.33 6205.87 N 1001.69 6244.94 N 1005.15 6284.07 N 1008.73 6323.26 N 1012.48 W W W W W 10150.0 52.10 354.30 7101.5 10200.0 52.16 354.20 7132.2 10250.0 52.10 353.86 7162.9 10300.0 52.26 353.78 7193.6 10350.0 52.63 353.50 7224.1 6440 6479 6519 6558 6598 .2 .6 .1 .6 .2 .24 6443.2 350.9 .20 6482.6 350.9 .55 6522.0 351.0 .35 6561.4 351.0 .87 6601.0 351.0 6362.50 N 1016.36 6401.78 N 1020.31 6441.03 N 1024.42 6480.30 N 1028.67 6519.69 N 1033.06 W W W W W 10400.0 52.73 353.51 7254.4 10450.0 52.84 353.11 7284.6 10500.0 52.70 353.20 7314.9 10550.0 53.03 353.08 7345.1 10600.0 53.05 353.12 7375.1 6638.0 6677.8 6717.6 6757·5 6797.4 · 20 6640 . 8 351 . 0 .67 6680.5 351.0 . 31 6720 . 3 351 · 0 .69 6760.2 351.0 .07 6800.1 351.1 6559.20 N 1037.56 6598.75 N 1042.20 6638.27 N 1046.94 6677.85 N 1051.70 6717.52 N 1056.51 W W W W W ARCO ALASKA INC. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O.A., Job Number: AKGCE508 A G y r o d a t a D i 1 ALAS KA r e c t i o n a 1 Survey Page MEASURED. I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 10650.0 52.84 352.65 7405.2 10700.0 52.66 352.58 7435.5 10750.0 52.62 352.62 7465.9 10800.0 53.34 352.57 7496.0 10850.0 53.38 352.33 7525.8 6837.3 6877.1 6916.9 6956.8 6996.9 .86 6840.0 351.1 .39 6879.8 351.1 .08 6919.5 351.1 .44 6959.4 351.1 .39 6999.5 351.1 6757.11 N 6796.58 N 6835.99 N 6875.58 N 6915.35 N 1061.45 W 1066.56 W 1071.68 W 1076.83 W 1082.10 W 10900.0 53.41 352.24 7555.6 10950.0 53.51 352.20 7585.4 11000.0 51.92 353.29 7615.7 11050.0 51.52 353.43 7646.6 11100.0 49.49 354.88 7678.4 7037 7077 7117 7156 7194 .0 .2 .0 .2 .8 .17 7039.6 351.1 .20 7079.8 351.1 3.62 7119.6 351.1 .83 7158.8 351.1 4.64 7197.3 351.2 6955.13 N 6994.93 N 7034.39 N 7073.38 N 7111.76 N 1087.49 W 1092.93 W 1097.96 W 1102.50 W 1106.43 W 11150 . 0 49 . 11 354 . 95 7711 . 1 11200 . 0 49 . 28 354 . 75 7743 . 7 11250.0 49.34 354.47 7776.3 11300.0 49.59 354.46 7808.8 11350 . 0 49 . 76 354 . 33 7841 . 2 7232 7270 7308 7346 7384 .7 .5 .4 .4 .5 .76 7235.1 351.2 .47 7272.9 351.2 .44 7310.8 351.2 .49 7348.7 351.2 .39 7386.7 351.2 7149.51 N 7187.21 N 7224.95 N 7262.78 N 7300.71 N 1109.79 W 1113.19 W 1116.75 W 1120.41 W 1124.14 W 11400.0 50.11 354.46 7873.4 11450.0 50.46 354.46 7905.3 11500.0 51.03 354.57 7936.9 11550.0 49.93 356.30 7968.8 11600.0 48.54 357.22 8001.4 7422 7461 7499 7538 7576 .7 .2 .9 .4 .2 . 74 7425 . 0 351 . 3 .70 7463 .4 351.3 . 14 7502 . 0 351 . 3 .45 7540.5 351.3 .12 7578.2 351.3 7338.79 N 7377.08 N 7415.62 N 7454.06 N 7491.87 N 1127.87 W 1131.58 W 1135.28 W 1138.36 W 1140.50 W 11650.0 47.06 357.77 8035.0 11700.0 46.51 358.77 8069.2 11750.0 45.33 358.98 8104.0 11800.0 45.43 357.89 8139.1 11850.0 43.77 357.92 8174.7 7613.1 7649.3 7685.0 7720.4 7755.4 3.07 7615.0 351.4 1.83 7651.2 351.4 2.37 7686.8 351.4 1.56 7722.1 351.5 3.33 7757.0 351.5 7528.87 N 7565.29 N 7601.20 N 7636.78 N 7671.86 N 1142.12 W 1143.22 W 1143 . 93 W 1144.90 W 1146.18 W A Gyro da t a D i r e c t i ona i Survey ARCO ALASKA INC. SAMBUCA (E PAD), WELL NO. PRUDHOE BAY FIELD, W.O.A., Job Number: AKGCE508 1 ALASKA MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet Page 10 11900.0 42.73 358.25 8211.2 11950.0 40.65 358.70 8248.5 12000.0 37.96 359.39 8287.2 12050.0 35.78 359.01 8327.2 12100.0 35.17 358.53 8367.9 7789.5 2.11 7791.0 351.5 7822.6 4.21 7824.1 351.6 7854.1 5.45 7855.5 351.6 7883.9 4.38 7885.2 351.6 7912.7 1.34 7914.0 351.6 7706.10 N 7739.34 N 7771.01 N 7801.00 N 7830.02 N 1147.33 W 1148.22 W 1148.75 W 1149.17 W 1149.79 W 12150.0 34.52 358.07 8408.9 12200.0 34.15 358.17 8450.2 12250.0 33.24 358.22 8491.8 12300.0 32.64 357.98 8533.8 12350.0 31.56 358.03 8576.1 7941.2 1.42 7942.4 351.7 7969.2 .75 7970.4 351.7 7996.8 1.82 7997.9 351.7 8023.9 1.22 8025.0 351.7 8050.3 2.17 8051.4 351.8 7858.57 N 7886.76 N 7914.48 N 7941.65 N 7968.20 N 1150.64 W 1151.56 W 1152.44 W 1153.34 W 1154.27 W 12400.0 31.27 357.90 8618.8 12450.0 31.26 357.48 8661.5 12500.0 30.24 357.75 8704.5 12550.0 28.39 358.16 8748.1 12600.0 27.27 358.42 8792.3 8076.3 .60 8077.3 351.8 8102.1 .43 8103.1 351.8 8127.6 2.04 8128.5 351.8 8152.0 3.73 8152.9 351.8 8175.2 2.26 8176.1 351.9 7994.25 N 8020.17 N 8045.71 N 8070.18 N 8093.51 N 1155.19 W 1156.24 W 1157.30 W 1158.18 W 1158.88 W 12650.0 26.24 358.44 8837.0 12700.0 24.76 359.10 8882.1 12750.0 23.77 359.96 8927.7 12800.0 22.25 359.72 8973.7 12850.0 22.05 359.93 9020.0 8197.6 2.07 8198.4 351.9 8219.0 3.01 8219.8 351.9 8239.4 2.10 8240.1 351.9 8258.8 3.04 8259.5 351.9 8277.5 .44 8278.2 351.9 8116.01 N 8137.53 N 8158.07 N 8177.62 N 8196.47 N 1159.49 W 1159.96 W 1160.13 W 1160.18 W 1160.24 W 12900.0 22.32 .24 9066.3 1'2950.0 22.24 1.37 9112.6 13000.0 21.58 358.80 9159.0 13001.0 21.58 358.54 9159.9 8296.2 .60 8296.9 352.0 8315.0 .87 8315.6 352.0 8333.5 2.33 8334.1 352.0 8333.9 9.40 8334.4 352.0 8215.35 N 8234.31 N 8252.96 N 8253.33 N 1160.21 W 1159.95 W 1159.91 W 1159.92 W Final Station Closure: Distance: 8334.44 ft Az: 352.00 deg. SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 1 BP EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 MWD SURVEY JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES VERT. DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. .00 .00 -71.00 38.00 38.00 -33.00 149.66 149.66 78.66 233.00 233.00 162.00 323.42 323.41 252.41 412.08 412.05 341.05 503.78 503.69 432.69 594.24 594.03 523.03 680.54 680.12 609.12 766.27 765.58 694.58 0 0 N .00 E .00 .00N .00E .00 0 0 N .00 E .00 .00N .00E .00 0 12 S 69.10 E .19 .07S .19E -.10 0 13 S 33.00 W .40 .26S .25E -.29 0 54 N 87.30 W .91 .37S .57W -.30 1 31 S 88.20 W .70 .38S 2.44W -.06 2 27 N 85.60 W 1.05 .26S 5.62W .45 3 31 S 89.60 W 1.20 .13S 10.33W 1.18 4 23 S 83.-40 W 1.12 .53S 16.26W 1.55 4 42 S 87.40 W .53 1.07S 23.04W 1.88 789.81 789.04 718.04 830.18 829.26 758.26 859.75 858.70 787.70 889.74 888.54 817.54 918.47 917.10 846.10 4 44 S 88.90 W .54 1.13S 24.98W 2.06 5 10 N 89.40 W 1.12 1.15S 28.46W 2.50 5 29 N 83.50 W 2.14 .97S 31.20W 3.02 5 54 N 80.60 W 1.67 .56S 34.15W 3.80 6 24 N 75.90 W 2.47 .07N 37.16W 4.81 943.78 942.24 871.24 980.91 979.05 908.05 009.27 1007.14 936.14 037.98 1035.55 964.55 070.95 1068.14 997.14 7 13 N 71.00 W 4.00 .94N 40.03W 6.04 7 45 N 67.30 W 1.93 2.66N 44.55W 8.33 8 7 N 61.30 W 3.18 4.37N 48.08W 10.46 8 22 N 61.60 W .92 6.33N 51.70W 12.88 8 56 N 58.20 W 2.32 8.83N 55.99W 15.90 1102.82 1099.60 1028.60 1135.31 1131.63 1060.63 1169.30 1165.10 1094.10 1195.98 1191.29 1120.29 1228.38 1222.98 1151.98 9 33 N 54.90 W 2.51 11.65N 60.26W 19.25 9 39 N 53.40 W .84 14.83N 64.65W 22.96 10 26 N 51.40 W 2.51 18.45N 69.35W 27.15 11 24 N 50.50 W 3.69 21.64N 73.27W 30.81 12 37 N 51.30 W 3.80 25.89N 78.51W 35.70 1260.78 1254.55 1183.55 1293.18 1286.07 1215.07 1325.58 1317.52 1246.52 1352.89 1343.89 1272.89 1388.76 1378.33 1307.33 13 21 N 50.60 W 2.30 30.48N 84.17W 40.97 13'30 N 50.60 W .44 35.26N 89.98W 46.45 14 18 N 49.20 W 2.71 40.27N 95.94W 52.19 15 47 N 48.50 W 5.46 44.94N 101.27W 57.50 16 36 N 47.10 W 2.53 51.67N 108.68W 65.11 1420.03 1408.31 1337.31 1452.18 1439.13 1368.13 1483.98 1469.59 1398.59 1516.02 1500.25 1429.25 1547.47 1530.28 1459.28 16 23 N 45.40-W 16 47 N 43.00 W 16 34 N 41.80 W 17 10 N 41.60 W 17 21 N 41.70 W 1 . 70 57 . 81N 115 . i0W 72 . 02 2 . 47 64 . 39N 121 . 50W 79 . 36 1.29 71.13N 127 . 65W 86.83 1 . 88 78 . 07N 133 . 84W 94 . 51 . 58 85 . 04N 140 . 04W 102 . 21 REC .x ED ,. 0 R IGINAL oPX/ SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 2 BP EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 MWD SURVEY JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 1577.27 1558.74 1487.74 17 12 1611.19 1591.12 1520.12 17 27 1642.74 1621.18 1550.18 17 49 1675.08 1651.98 1580.98 17 46 1706.10 1681.47 1610.47 18 19 N 41.29 W .63 91.67N 145.90W N 41.10 W .73 99.27N 152.56W N 40.40 W 1.35 106.52N 158.80W N 39.20 W 1.14 l14.11N 165.12W N 39.40 W 1.82 121.55N 171.21W 109.54 117.93 125.91 134.24 142.40 1736.07 1709.87 1638.87 18 53 1768.16 1740.17 1669.17 19 31 1801.06 1771.11 1700.11 20 13 1833.17 1801.24 1730.24 20 17 1864.72 1830.81 1759.81 20 28 N 38.30 W 2.23 129.00N 177.21W N 38.10 W ~ 1.97 137.30N 183.74W N 36.80 W 2.49 146.18N 190.54W N 37.20 W .48 155.05N 197.23W N 38.20 W 1.24 163.75N 203.95W 150.55 159.62 169.29 178.95 188.43 1898.32 1862.21 1791.21 21 13 1927.96 1889.72 1818.72 22 30 1988.39 1944.99 1873.99 25 9 2020.24 1973.69 1902.69 26 12 2051.81 2001.79 1930.79 28 2 N 39.10 W 2.43 173.08N 211.42W N 39.50 W 4.38 181.62N 218.41W N 39.10 W 4.39 200.52N 233.87W N 39.60 W 3.34 211.19N 242.62W N 38.70 W 5.97 222.35N 251.70W 198.64 208.01 228.72 240.42 252.65 2083.11 2029.28 1958.28 29 4 2114.76 2056.87 1985.87 29 33 2147.16 2085.00 2014.00 29 56 2177.33 2111.16 2040.16 29 49 2209.86 2139.40 2068.40 29 40 N 37.60 W 3.72 234.12N 260.95W N 35.80 W 3.17 246.55N 270.21W N 33.60 W 3.57 259.77N 279.35W N 32.70 W 1.53 272.35N 287.57W N 32.90 W .58 285.92N 296.32W 265.50 279.01 293.28 306.81 321.39 2241.86 2167.17 2096.17 29 58 2273.66 2194.65 2123.65 30 23 2303.79 2220.63 2149.63 30 30 2335.91 2248.19 2177.19 31 16 2367.99 2275.56 2204.56 31 37 N 31.20 W 2.80 299.41N 304.76W N 29.70 W 2.73 313.19N 312.86W N 28.90 W 1.39 326.51N 320.34W N 28.20 W 2.62 340.99N 328.22W N 28.00 W 1.14 355.75N 336.10W 335.84 350.54 364.71 380.08 395.73 2401.08 2303.59 2232.59 32 32 2430.66 2328.44 2257.44 33 12 2462.66 2355.20 2284.20 33 17 2494.56 2381.74 2310.74 34 4 2519.76 2402.55 2331.55 34 32 N 26.60 W 3.60 371.37N 344.16W N 25.70 W 2.78 385.79N 351.23W N 25.10 W 1.07 401.64N 358.76W N 24.20 W 2.90 417.72N 366.14W N 23.80 W 2.03 430.70N 371.91W 412.25 427.45 444.13 461.02 474.63 2557.0 2590.0 2621.1 2653.5 2683.8 6 2433.28 2362.28 34 31 4 2460.39 2389.39 34 53 6 2485.90 2414.90 35 0 6 2512.40 2441.40 35 17 9 2537.12 2466.12 35 30 N 22.40 W 2.13 450.14N 380.21W N 21.60 W 1.78 467.55N 387.24W N 20.60 W 1.88 484.18N 393.66W N 18.60 W 3.66 501.75N 399.91W N 17.00 W 3.13 518.47N 405.28W 494.97 513.14 530.45 548.67 565.95 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 BP EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 MWD SURVEY JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 2716.56 2563.63 2492.63 36 2 N 16.40 W 1.97 2750.00 2590.52 2519.52 36 51 N 16.80 W 2.55 2778.49 2613.26 2542.26 37 17 N 16.40 W 1.73 2810.98 2638.98 2567.98 38 1 N 15.20 W 3.18 2839.68 2661.44 2590.44 38 57 N 15.00 W 3.30 536.77N 410.77W 584.79 555.80N 416.45W 604.39 572.26N 421.35W 621.35 591.36N 426.75W 640.98 608.61N 431.41W 658.67 2872.41 2686.79 2615.79 39 31 N 14.80 W 1.75 2904.18 2711.23 2640.23 39 53 N 13.50 W 2.8,6 2933.55 2733.66 2662.66 40 32 N 12.80 W 2.72 2964.66 2757.09 2686.09 41 42 N 11.70 W 4.39 2996.45 2780.78 2709.78 41 57 N 11.00 W 1.65 628.61N 436.73W 679.20 648.29N 441.69W 699.35 666.76N 446.00W 718.21 686.76N 450.34W 738.60 707.54N 454.52W 759.75 3027.69 2803.88 2732.88 42 39 N 9.70 W 3.59 3058.11 2826.22 2755.22 42 50 N 10.80 W 2.54 3090.06 2849.57 2778.57 43 13 N 9.70 W 2.62 3122.07 2872.88 2801.88 43 20 N 8.90 W 1.75 3153.64 2895.80 2824.80 43 33 N 9.10 W .82 728.22N 458.29W 780.74 748.54N 461.97W 801.36 770.00N 465.84W 823.14 791.65N 469.39W 845.07 813.10N 472.79W 866.77 3185.99 2919.10 2848.10 44 16 N 9.50 W 2.38 3213.32 2938.66 2867.66 44 16 N 9.10 W 1.02 3248.18 2963.53 2892.53 44 41 N 8.70 W 1.42 3279.62 2985.75 2914.75 45 24 N 8.80 W 2.27 3312.03 3008.45 2937.45 45 39 N 8.20 W 1.53 835.24N 476.41W 889.20 854.07N 479.50W 908.27 878.20N 483.28W 932.69 900.19N 486.66W 954.93 923.07N 490.08W 978.05 3344.86 3031.27 2960.27 46 17 N 8.80 W 2.38 946.41N 493.57W 1001.65 3374.82 3051.86 2980.86 46 50 N 8,60 W 1.90 967.92N 496.86W 1023.40 3402.25 3070.56 2999.56 47 11 N 8.05 W 1.92 987.78N 499.77W 1043.47 3432.59 3091.07 3020.07 47 45 N 7.60 W 2.17 1009.93N 502.81W 1065.82 3466.80 3113.95 3042.95 48 16 N 7.30 W 1.65 1035.14N 506.11W 1091.26 3499.12 3135.33 3064.33 48 55 N 6.60 W 2.56 1059.21N 509.04W 1115.50 3531.66 3156.52 3085.52 49 47 N 6.30 W 2.79 1083.74N 511.81W 1140.19 3561.60 3175.75 3104.75 50 15 N 6.30 W 1.54 1106.55N 514.33W 1163.13 3593.48 3196.08 3125.08 50 29 N 6.00 W 1.02 1130.96N 516.96W 1187.68 3626.60 3217.15 3146.15 50 31 N 5.60 W .94 1156.39N 519.54W 1213.23 3656.08 3235.72 3164.72 51 22 N 4.80 W 3.60 1179.19N 521.62W 1236.10 3687.98 3255.51 3184.51 51 55 N 4.'20 W 2.25 1204.13N 523.58W 1261.09 3752.06 3293.97 322'2.97 54 19 N 2.90 W 4.08 1255.28N 526.74W 1312.23 3783.87 3312.30 3241.30 55 17 N 2.70 W 3.12 1281.25N 528.01W 1338.14 3815.96 3330.44 3259.44 55 52 N 3.00 W 1.94 1307.69N 529.33W 1364.53 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 4 BP EXPLORATION ?BU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 MWD SURVEY JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 3846.88 3347.73 3276.73 56 6 N 2.80 W .94 1333.28N 530.63W 1390.09 3878.70 3365.44 3294.44 56 15 N 2.50 W .91 1359.69N 531.85W 1416.44 3942.46 3400.65 3329.65 56 41 N 1.80 W 1.14 1412.81N 533.84W 1469.37 4039.16 3454.28 3383.28 55 57 N .60 W 1.29 1493.25N 535.53W 1549.38 4133.60 3507.56 3436.56 55 21 N 1.50 W 1.00 1571.21N 536.96W 1626.88 4225.26 3559.89 3~88.89 55 0 N 2.80 W 1.23 1646.41N 539.78W 1701.82 4320.70 3615.23 3544.23 54 6 N 4.90 W 2.03 1723.97N 544.99W 1779.42 4378.84 3649.41 3578.41 53 52 N 5.10 W .50 1770.82N 549.09W 1826.41 4477.25 3707.78 3636.78 53 22 N 2.90 W 1.87 1849.85N 554.62W 1905.49 4569.76 3762.79 3691.79 53 39 N 4.20 W 1.17 1924.07N 559.23W 1979.70 4664.94 3819.15 3748.15 53 44 N 5.10 W .77 2000.52N 565.44W 2056.31 4759.13 3874.70 3803.70 53 58 N 4.70 W .43 .2076.31N 571.94W 2132.31 4855.57 3931.24 3860.24 54 13 N 5.80 W .96 2154.10N 579.09W 2210.38 4950.60 3987.26 3916.26 53 31 N 6.10 W .78 2230.45N 587.05W 2287.12 5045.21 4043.41 3972.41 53 39 N 6.20 W .16 2306.16N 595.21W 2363.25 5139.78 4099.69 4028.69 53 17 N 6.40 W .42 2381.70N 603.54W 2439.24 5235.89 4157.30 4086.30 53 2 N 5.30 W .96 2458.22N 611.39W 2516.14 5330.15 4214.04 4143.04 52 56 N 5.10 W .20 2533.18N 618.21W 2591.35 5425.66 4271.80 4200.80 52 37 N 6.20 W .34 2608.94N 625.04W 2667.36 5518.62 4327.64 4256.64 53 32 N 5.70 W 1.07 2682.92N 632.10W 2741.64 5614.36 4384.43 4313.43 53 41 N 6.30 W .53 2759.57N 640.15W 2818.70 5708.85 4441.08 4370.08 52 37 N 4.'10 W 2.17 2834.87N 647.02W 2894.25 5805.05 4499.36 4428.36 52 47 N 3.90 W .24 2911.22N 652.36W 2970.66 5898.34 4555.32 4484.32 53 28 N 4.50 W .88 2985.65N 657.82W 3045.18 5994.69 4613.23 4542.23 52 38 N 4.00 W .96 3062.44N 663.53W 3122.07 6088.18 4670.14 4599.14 52 22 N 3.30 W .66 3136.47N 668.25W 3196.09 6184.66 4728.83 4657.83 52 41 N 3.80 W .53 3212.89N 673.00W 3272.50 6280.09 4786.67 4715.67 52 42 N 4.20 W .33 3288.61N 678.29W 3348.28 6374.02 4843.25 4772.25- 53 13 N 4.60 W .65 3363.37N 684.04W 3423.15 6470.38 4901.58 4830.58 52 16 N 3.50 W 1.34 3439.87N 689.47W 3499.72 6565.10 4959.00 4888.00 53 5 N 3.80 W .91 3515.04N 694.26W 3574.90 6661.37 5016.58 4945.58 53 25 N 3.50 W .42 3592.04N 699.17W 3651.89 6756.46 5074.08 5003.08 52 9 N 3.30 W 1.36 3667.63N 703.67W 3727.44 6849.45 5130.89' 5059.89 52 31 N 4.30 W .94 3741.08N 708.55W 3800.91 6943.43 5187.63 5116.63 53 12 N 4.60 W .76 3815.78N 714.36W 3875.74 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 5 BP EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 MWD SURVEY JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 7037.37 5243.49 5172.49 53 49 N 5.40 W .95 3891.01N 720.94W 3951.19 7133.62 5300.74 5229.74 53 11 N 4.20 W 1.20 3968.11N 727.42W 4028.49 7214.15 5349.11 5278.11 52 58 N 3.50 W .75 4032.35N 731.74W 4092.75 7305.84 5404.03 5333.03 53 25 N 4.60 W 1.08 4105.58N 736.93W 4166.05 7402.40 5461.48 5390.48 53 32 N 4.50 W .15 4182.94N 743.09W 4243.57 7496.14 5517.08 5446.08 53 41 N 5.20 W .62 4258.14N 749.47W 4318.96 7589.97 5572.07 5501.07 54 33 N 6.00 W 1.16 4333.81N 756.89W 4394.96 7685.66 5628.93 5557.93 52 31 N 3.90 W 2.77 4410.47N 763.55W 4471.84 7780.51 5686.31 5615.31 53 1 N 3.80 W .54 4485.82N 768.62W 4547.22 7874.41 5742.59 5671.59 53 19 N 4.30 W .53 4560.80N 773.93W 4622.27 7966.20 5796.95 5725.95 54 2 N 5.20 W 1.12 4634.50N 780.06W 4696.15 8061.46 5852.37 5781.37 54 47 N 5.-70 W .90 4711.63N 787.42W 4773.58 8155.03 5907.46 5836.46 53 3 N 5.10 W 1.93 4786.91N 794.54W 4849.16 8251.04 5964.42 5893.42 54 9 N 4.80 W 1.16 4863.90N 801.20W 4926.38 8345.79 6019.20 5948.20 55 12 N 6.20 W 1.64 4940.84N 808.62W 5003.63 8439.94 6074.14 6003.14 53 23 N 5.00 W 2.18 5016.92N 816.09W 5080.04 8534.38 6129.90 6058.90 54 14 N 5.20 W .92 5092.84N 822.86W 5156.20 8629.61 6184.83 6113.83 55 17 N 5.20 W 1.11 5170.30N 829.91W 5233.93 8723.41 6239.30 6168.30 53 41 N 5.40 W 1.73 5246.33N 836.97W 5310.24 8818.56 6296.53 6225.53 52 22 N 2.50 W 2.80 5322.15N 842.22W 5386.11 8913.52 6354.06 6283.06 53 1 N 3.10 W .85 5397.61N 845.91W 5461.42 9010.09 6411.37 6340.37 54 9 N 3.10 W 1.17 5475.21N 850.11W 5538.93 9105.12 6468.40 6397.40 52 4 N 2.50 W 2.26 5551.12N 853.83W 5614.69 9199.42 6526.08 6455.08 52 30 N 3.10 W .69 5625.63N 857.48W 5689.05 9294.81 6583.64 6512.64 53 15 N 4.20 W 1.21 5701.53N 862.32W 5764.96 9389.90 6641.48 6570.48 51 48 N 4.20 W 1.52 5776.80N 867.85W 5840.32 9484.24 6699.84 6628.84 51 45 N 4.70 W .42 5850.70N 873.60W 5914.34 9582.13 6760.25 6689.25 52 1 N 5.50 W .70 5927.42N 880.45W 5991.31 9677.75 6819.18 6748.18 51 52 N 6.30 W .68 6002.32N 888.19W 6066.58 9772.67 6877.51 6806.51 52 17 N 6.10 W .48 6076.76N 896.27W 6141.45 9868.51 6936.66 6865.66 51 28 N 4.00 W 1.93 6151.86N 902.92W 6216.78 9961.40 6994.48 6923.48 51 32 N 5.40 W 1.18 6224.31N 908.88W 6289.40 10054.04 7051.91 698'0.91 51 50 N 4.70 W .68 6296.72N 915.27W 6362.04 10145.81 7108.54 7037.54 51 57 N 4.'10 W .53 6368.72N 920.81W 6434.16 10239.41 7166.10 7095.10 52 8 N 5.30 W 1.03 6442.28N 926.86W 6507.88 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 6 BP EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 MWD SURVEY JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 10333.98 7223.86 7152.86 52 33 N 4.20 W 1.02 6516.89N 933.06W 6582.68 10429.47 7281.85 7210.85 52 39 N 4..30 W .'13 6592.55N 938.68W 6658.44 10523.96 7339.00 7268.00 52 54 N 5.90 W 1.37 6667.50N 945.37W 6733.62 10618.37 7395.98 7324.98 52 49 N 5.50 W .35 6742.39N 952.85W 6808.86 10712.68 7453.08 7382.08 52 39 N 7.10 W 1.36 6816.99N 961.08W 6883.90 10807.72 7510.40 7439.40 53 10 N 7.20 W .55 6892.22N 970.52W 6959.71 10902.05 7566.73 7495.73 53 30 N 8.10 W .84 6967.21N . 980.59W 7035.38 10997.38 7624.70 7553.70 51 34 N 6.10 W 2.62 7042.27N 989.96W 7111.02 11092.93 7685.52 7614.52 49 21 N 4.60 W 2.61 7115.62N 996.84W 7184.65 11188.10 7747.60 7676.60 49 12 N 4.70 W .19 7187.51N t002.69W 7256.70 11282.13 7808.88 7737.88 49 27 N 5.20 W .49 7258.56N 1008.85W 7327.96 11377.41 7870.41 7799.41 50 5 N 5.60 W .73 7330.99N 1015.69W 7400.66 11471.29 7930.30 7859.30 50 37 N 5.50 W .58 7402.94N 1022.69W 7472.92 11565.41 7991.19 7920.19 48 45 N 2.40 W 3.20 7474.53N 1027.66W 7544.55 11659.19 8054.44 7983.44 46 24 N 1.50 W 2.61 7543.70N 1030.02W 7613.46 11756.49 8122.24 8051.24 45 15 N .70 W 1.32 7613.47N 1031.37W 7682.83 11851.79 8190.62 8119.62 43 1 N 1.40 W 2.40 7679.80N 1032.57W 7748.78 11947.18 8261.89 8190.89 40 16 N .40 W 2.96 7743.18N 1033.58W 7811.77 12042.53 8337.03 8266.03 35 40 N .19 W 4.84 7801.83N 1033.89W 7869.98 12136.56 8413.96 8342.96 34 31 N 2.20 W 1.73 7855.87N 1035.00W 7923.72 12231.89 8493.17 8422.17 33 5 N 1.00 W 1.65 7908.89N 1036.50W 7976.50 12326.85- 8573.36 8502.36 31 39 N 1.70 W 1.57 7959.73N 1037.69W 8027.07 12420.50 8653.32 8582.32 31 4 N 2.24 W .69 8008.45N 1039.36W 8075.61 12452.26 8680.51 8609.51 31 6 N 1.'99 W .41 8024.84N 1039.97W 8091.94 12484.13 8707.91 8636.91 30 21 N 1.80 W 2.37 8041.11N 1040.51W 8108.15 12515.69 8735.27 8664.27 29 24 N 1.28 W 3.09 8056.83N 1040.93W 8123.79 12546.57 8762.33 8691.33 28 10 N 1.72 W 4.04 8071.69N 1041.32W 8138.59 12578.34 8790.45 8719.45 27 15 N 1.50 W 2.91 8086.47N 1041.73W 8153.29 12610.17 8818.79 8747.79 26 58 N .90 W 1.25 8100.97N 1042.04W 8167.71 12641.77 8847.05 8776.05 26 8 N .98 W 2.63 8115.09N 1042.27W 8181.75 12673.36 8875.53 8804.53 25 10 N .74 W 3.06 8128.77N 1042.47W 8195.34 12704.77 8904.04 8833.04 24 25 N .06 E 2.65 8141.95N 1042.55W 8208.42 12737.18 8933.62 886'2.62 23 50 N .89 E 2.07 8155.19N 1042.45W 8221.55 12768.91 8962.75 8891.75 22 49 N .23 E 3.32 8167.76N 1042.32W 8234.00 12800.75 8992.18 8921.18 22 2 N .25 E 2.42 8179.91N 1042.27W 8246.04 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 7 BP EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 MWD SURVEY JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 12832.77 9021.86 8950.86 22 1 N .34 E .12 8191.93N 1042.21W 8257.95 12861.91 9048.86 8977.86 22 8 N .23 E .43 8202.88N 1042.15W 8268.81 12941.04 9122.13 9051.13 22 13 N 2.26 E .97 8232.75N 1041.50W 8298.35 12973.08 9151.84 9080.84 21 46 N .71 E 2.29 8244.75N 1041.19W 8310.21 13005.09 9181.61 9110.61 21 21 N 2.49 W 3.89 8256.51N 1041.37W 8321.89 13037.05 9211.41 9140.41 20 58 N 5.05 W 3.13 8268.02N 1042.13W 8333.41 13068.86 9241.13 9170.13 20 51 N 5.73 W .85 8279.33N 1043.19W 8344.76 13100.78 9270.97 9199.97 20 43 N 5.49 W .51 8290.60N 1044.30W 8356.09 13132.52 9300.67 9229.67 20 32 N 6.34 W 1.10 8301.73N 1045.45W 8367.27 13164.70 9330.83 9259.83 20 17 N 6.81 W .93 8312.88N 1046.74W 8378.49 13196.69 9360.86 9289.86 20 2 N 7.05 W .82 8323.82N 1048.07W 8389.52 13214.39 9377.50 9306.50 19 43 N 7.36 W 1.85 8329.80N 1048.82W 8395.54 13282.00 9.441.15 9370.15 19 43 N 7.36 W .03 8352.43N 1051.75W 8418.36 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 8418.39 FEET AT NORTH 7 DEG. 10 MIN. WEST AT MD = 13282 VERTICAL SECTION RELATIVE TO WELL ~EAD VERTICAL SECTION COMPUTED ALONG 352.67 DEG. TIE-IN SURVEY AT SURFACE 0.00' MD PROJECTED SURVEY AT 13,282.00' MD SPERRY-SUN DRILLING SERVICES ANCHOP~tGE ALASK~ PAGE 8 BP EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES MD-TVD VERTICAL DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION .00 .00 -71.00 1000.00 997.96 926.96 2000.00 1955.50 1884.50 3000.00 2783.42 2712.42 4000.00 3432.35 3361.35 .00 N .00 E .00 3.74 N 46.93 W 2.04 2.04 204.35 N 236.98 W 44.50 42.46 709.87 N 454.97 W 216.58 172.08 1460.81 N 535.19 W 567.65 351.07 5000.00 4016.62 3945.62 6000.00 4616.46 4545.46 7000.00 5221.43 5150.43 8000.00 5816.80 5745.80 9000.00 6405.47 6334.47 2269.95 N 591.27 W 983.38 415.73 3066.65 N 663.83 W 1383.54 400.16 3860.98 N 718.11 W 1778.57 395.02 4661.75 N 782.54 W 2183.20 404.63 5467.04 N 849.67 W 2594.53 411.33 10000.00 7018.49 6947.49 11000.00 7626.33 7555.33 12000.00 8302.94 8231.94 13000.00 9176.87 9105.87 13282.00 9441.15 9370.15 6254.40 N 911.72 W 7044.31 N 990.18 W 7776.42 N 1033.78 W 8254.65 N 1041.29 W 8352.43 N 1051.75 W 2981.51 386.98 3373.67 392.16 3697.06 323.40 3823.13 126.07 3840.85 17.72 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE BP EXPLORATION PBU / SAM 1 500292281900 NORTH-SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION .00 .00 -71.00 71.00 71.00 .00 171.00 171.00 100.00 271.00 271.00 200.00 371.01 371.00 300.00 471.06 471.00 400.00 571.17 571.00 500.00 671.39 671.00 600.00 771.71 771.00 700.00 872.11 871.00 800.00 .00 N .00 E .00 .00 N .00 E .00 .00 .10 S .26 E .00 .00 .38 S .15 E .00 .00 .35 S 1.39 W .01 .01 .37 S 4.22 .13 S 8.92 .45 S 15.57 1.09 S 23.49 .82 S 32.40 W .06 · .04 W .17 .11 W .39 .22 W .71 .32 W 1.11 .40 972.79 971.00 900.00 1073.84 1071.00 1000.00 1175.30 1171.00 1100.00 1277.69 1271.00 1200.00 1381.11 1371.00 1300.00 2.25 N 43.55 9.07 N 56.37 19.13 N 70.20 32.97 N 87.19 50.18 N 107.08 1.79 .68 2.84 1.05 4.30 1.46 6.69 2.39 10.11 3.42 1485.45 1471.00 1400.00 1590.11 1571.00 1500.00 1695.08 167i.00 1600.00 1800.94 1771.00 1700.00 1907.77 1871.00 1800.00 71.44 N 127.93 94.54 N 148.42 118.88 N 169.03 146.14 N~ 190.51 175.78 N 213.61 14.45 4.34 19.11 4.66 24.08 4. 97 29.94 5.86 36.77 6.83 2017.24 1971.00 1900.00 2131.02 2071.00 2000.00 2246.29 2171.00 2100.00 2362.64 2271.00 2200.00 2481.60 2371.00 2300.00 210.18 N 241.79 253.13 N 274.84 301.31 N 305.90 353.27 N 334.78 411.09 N 363.16 46.24 9.47 60.02 13.78 75.29 15.27 91.64 16.35 110.60 18.96 2602.97 2471.00 2400.00 2725.70 2571.00 2500.00 2851.99 2671.00 2600.00 2983.31 2771.00 2700.00 3119.49 2871.00 2800.00 474.44 N 389.95 541.94 N 412.30 616.10 N 433.41 698.92 N 452.84 789.90 N 469.12 131.97 21.38 154.70 22.72 180.99 26.29 212.31 31.31 248.49 36.18 3258.68 2971.00 290'0.00 3402.90 3071.00 3000.00 3554.19 3171.00 3100.00 3713.40 3271.00 3200.00 3888.71 3371.00 3300.00 885.50 N 484.39 988.25 N 499.83 1100.89 N 513.71 1224.24 N 524.95 1368.01 N 532.21 W 287.68 39.19 W 331.90 44.21 W 383.19 51.29 W 442.40 59.21 W 517.71 75.31 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 10 BP.EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 4069.03 3471.00 3400.00 4244.64 3571.00 3500.00 4415.46 3671.00 3600.00 4583.61 3771.00 3700.00 4752.84 3871.00 3800.00 1518.00 N 535.79 1662.26 N 540.55 1800.28 N 551.72 1935.19 N 560.04 2071.24 N 571.52 W 598.03 80.31 W 673.64 75.61 W 744.46 70.82 W 812.61 68.15 W 881.84 69.24 4923.25 3971.00 3900.00 5091.74 4071.00 4000.00 5258.68 4171.00 4100.00 5424.34 4271.00 4200.00 5591.68 4371.00 4300.00 2208.58 N 584.71 2343.40 N 599.26 2476.36 N 613.07 2607.89 N 624.94 2741.41 N 638.15 W 952.25 70.41 W 1020.74 68.49 W 1087.68 66.94 W 1153.34 65.66 W 1220.68 67.34 5758.15 4471.00 4400.00 5924 . 68 4571.00 4500.00 6089.59 4671.00 4600.00 6254.23 4771.00 4700.00 6420.36 4871.00 4800.00 2873.95 N 649.81 3006.75 N 659.48 3137.58 N 668.32 3268.10 N 676.78 3400.36 N 687.02 W 1287.15 66.47 W 1353.68 66.52 W 1418.59 64.91 W 1483.23 64.64 W 1549.36 66.13 6585.09 4971.00 4900.00 6751.44 5071.00 5000.00 6915.67 5171.00 5100.00 7083.93 5271.00 52D0.00 7250.50 5371.00 5300.00 3531.00 N 695.32 3663.68 N 703.44 3793.62 N 712.58 3928.41 N 724.43 4061.31 N 733.52 W 1614.09 64.73 W 1680.44 66.35 W 1744.67 64.23 W 1812.93 68.25 W 1879.50 66.57 7418.42 5471.00 5400.00 7588.12 5571.00 5500.00 7755.05 5671.00 -5600.00 7922.00 5771.00 5700.00 8093.78 5871.00 5800.00 4195.79 N 744.10 4332.30 N 756.73 4465.52 N 767.27 4598.87 N 776.82 4737.90 N 790.04 W 1947.42 67.92 W 2017.12 69.70 W 2084.05 66.93 W 2151.00 66.95 W 2222.78 71.78 8262.27 5971.00 5900.00 8434.67 6071.00 6000.00 8605.31 6171.00 6100.00 8776.46 6271.00 6200.00 8941.68 6371.00 6300.00 4872.98 N 801.97 5012.70 N 815.72 5150.41 N 828.10 5288.73 N 840.37 5420.07 N 847.13 W 2291.27 68.50 W 2363.67 72.39 W 2434.31 70.65 W 2505.46 71.15 W 2570.68 65.22 9109.35 6471.00 6400.00 9273.68 6571.00 6500.00 9437.65 6671.00 6600.00 9599.61 6771.00 6700.00 9762.03 6871.00 6800.00 5554.45 N 853.98 5684.65 N 861.08 5814.23 N 870.62 5941.14 N 881.77 6068.39 N 895.38 W 2638.35 67.67 W 2702.68 64.33 W 2766.65 63.97 W 2828.61 61.96 W 2891.03 62.42 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 11 BP EXPLORATION PBU / SAM 1 500292281900 NORTH SLOPE BOROUGH COMPUTATION DATE: 12/18/97 DATE OF SURVEY: 112497 JOB NUMBER: AKMM70310 KELLY BUSHING ELEV. = 71.00 FT. OPERATOR: BP EXPLORATION INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 9923.65 6971.00 6900.00 6194.88 N 906.09 W 2952.65 61.62 10084.94 7071.00 7000.00 6320.93 N 917.26 W 3013.94 61.29 10247.40 7171.00 7100.00 6448.56 N 927.44 W 3076.40 62.46 10411.58 7271.00 7200.00 6578.37 N 937.62 W 3140.58 64.19 10577.01 7371.00 7300.00 6709.59 N 949.68 W 3206.01 65.43 10742.21 7471.00 7400.00 6840.29 N 963.99 W 3271.21 65.20 10909.24 7571.00 7500.00 6972.93 N 981.41 W 3338.24 67.02 11070.64 7671.00 7600.00 7098.76 N 995.49 W 3399.64 61.41 11223.92 7771.00 7700.00 7214.53 N 1004.92 W 3452.92 53.2'7 11378.33 7871.00 7800.00 7331.69 N 1015.76 W 3507.33 54.41 11534.58 7971.00 7900.00 7451.26 N 1026.45 W 3563.58 56.25 11683.21 8071.00 8000.00 7561.09 N 1030.48 W 3612.21 48.63 11824.95 8171.00 8100.00 7661.50 N 1032.13 W 3653.95 41.75 11959.06 8271.00 8200.00 7750.81 N 1033.63 W 3688.06 34.11 12084.31 8371.00 8300.00 7826.16 N 1034.02 W 3713.31 25.25 12205.43 8471.00 8400.00 7894.44 N 1036.24 W 3734.43 21.12 12324.08 8571.00 8500.00 7958.27 N 1037.64 W 3753.08 18.65 12441.15 8671.00 8600.00 8019.10 N 1039.77 W 3770.15 17.07 12556.40 8771.00 8700.00 8076.34 N 1041.46 W 3785.40 15.25 12668.36 8871.00 8800.00 8126.64 N 1042.45 W 3797.36 11.96 12777.86 8971.00 8900.00 8171.23 N 1042.31 W 3806.86 9.50 12885.81 9071.00 9000.00 8211.90 N 1042.12 W 3814.81 7.95 12993.69 9171.00 9100.00 8252.34 N 1041.25 W 3822.69 7.88 13100.81 9271.00 9200.00 8290.61 N 1044.30 W 3829.81 7.13 13207.47 9371.00 9300.00 8327.46 N 1048.53 W 3836.47 6.66 13282.00 9441.15 9370.15 8352.43 N 1051.75 W 3840.85 4.38 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS B.P. EXPLORATION SAMBUCA, WELL NO. 1 NORTH SLOPE, ALASKA Gyro Continuous Multishot Survey Inside 4.5" TUBING Survey date: 12 -DECEMBER, 1997 Job number :Al 297GCE434 CONTENTS JOB NUMBER :A1297GCE434 DISCUSSION , SURVEY CERTIFICATION SHEET 2. SURVEY DETAILS 3. OUTRUN SURVEY LISTING 4. QUALITY CONTROL 5. EQUIPMENT AND CHRONOLOGICAL REPORT 1. DISCUSSION; SURVEY CERTIFICATION SHEET DISCUSSION JOB NUMBER' A1297GCE434 Tool 777 was run in WELL# I on SCHLUMBERGER 7/32" wireline inside TUBING. The survey was run without problems. SURVEY CERTIFICATION SHEET JOB NUMBER' A1297GCE434 The data for this survey and the calculations for this survey were obtained and performed by me according to standards and procedures as set forth by Gyrodata Limited, true and correct to the best of my knowledge. TOM STODDARD OPERATIONS ENGINEER The data and calculations for this survey have been checked by me and conform to the standards and procedures as set forth by Gyrodata Limited. This report represents a directional survey of this well based on the original data obtained at the wellsite. Checked by :- ROB SHOUP OPERATIONS MANAGER 2. SURVEY DETAILS SURVEY DETAILS JOB NUMBER: A1297GCE434 CLIENT: B.P. EXPLORATION RIG: SCHLUMBERGER LOCATION' SAMBUCA, ALASKA WELL: 1 LATITUDE: 70.345 N LONGITUDE: 148.9 W SURVEY DATE: SURVEY TYPE : 12-DECEMBER,1997 GYRO CONTINOUS MULTISHOT IN 4.5" TUBING DEPTH REFERENCE: 69.00 ' MAX. SURVEY DEPTH: ROTARY TABLE ELEVATION 13160' SURVEY TIED ONTO: NA SURVEY INTERVAL: 0-13160' APl NUMBER: 050-029-22819 TARGET DIRECTION: 352.67 GRID CORRECTION: N/A CALCULATION METHOD: MINIMUM CURVATURE SURVEYOR: TOM STODDARD 3. OUTRUN SURVEY LISTING A Gyro da t a D i r e c t i ona i Survey for B.P. EXPLORATION SAMBUCA FIELD, WELL NO. 1 NORTH SLOPE, ALASKA Job Number: A1297GCE434 Run Date: 12-Dec-97 14:00:00 Surveyor: TOM STODDARD Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.343000 deg. N Sub-sea Correction from Vertical Reference: 69 ft. Azimuth Correction: Gyro: Bearings are Relative to True North Proposed Well Direction: 352.670 deg Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference A Gyro da t a D i r e c t i o n a i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 0.0 0.00 0.00 0.0 100.0 .05 24.45 100.0 200.0 .49 278.58 200.0 300.0 .79 274.06 300.0 402.0 1.36 271.28 402.0 0.0 0.00 0.0 0.0 .0 .05 .0 24.4 .2 .51 .4 291.4 .5 .30 1.5 280.0 .8 .56 3.4 275.7 0.00 N 0.00 E .04 N .02 E .15 N .38 W .26 N 1.50 W .34 N 3.40 W 501.0 2.16 270.20 500.9 601.0 3.20 269.90 600.8 701.0 4.14 269.86 700.6 800.0 4.81 272.24 799.3 901.0 6.00 285.13 899.9 1.2 .81 6.5 273.3 1.8 1.04 11.1 271.9 2.6 .94 17.5 271.2 3.7 .71 25.2 271.2 6.5 1.67 34.6 273.4 .37 N 6.44 W .37 N 11.12 W .36 N 17.52 W .51 N 25.24 W 2.06 N 34.57 W 1000.0 7.89 297.66 998.1 1101.0 9.44 305.02 1098.0 1201.0 11.24 307.39 1196.4 1302.0 13.86 309.72 1294.9 1350.0 15.00 311.52 1341.4 12.3 2.43 46.1 278.2 21.9 1.89 60.3 283.9 34.3 1.84 77.2 289.0 50.0 2.65 98.1 293.3 58.9 2.55 109.6 295.2 6.56 N 45.59 W 14.53 N 58.51 W'~ 25.16 N 72.97 W 38.87 N 90.10 W 46.66 N 99.17 W 1400.0 15.96 313.32 1389.6 1450.0 16.47 315.29 1437.6 1500.0 16.73 316.57 1485.5 1550.0 17.01 317.65 1533.4 1600.0 17.31 318.43 1581.2 69.1 2.14 122.4 297.0 80.1 1.50 135.8 298.8 91.5 .90 149.5 300.4 103.3 .85 163.5 301.9 115.5 .75 177.7 303.2 55.66 N 109.02W 65.42 N 119.00 W 75.68 N 128.94 W 86.31 N 138.81 W 97.28 N 148.68 W 1650.0 17.73 319.57 1628.8 1700.0 18.18 320.62 1676.4 1750.0 18.98 321.62 1723.8 1800.0 19.79 322.07 1771.0 1850.0 20.33 321.73 1817.9 128.0 1.08 192.2 304.4 141.0 1.11 207.1 305.6 154.6 1.72 222.5 306.7 168.8 1.65 238.5 307.7 183.5 1.11 255.2 308.7 108.64 N 158.55 W 120.47 N 168.44 W 132.87 N 178.43 W 145.92 N 188.68 W 159.42 N 199.27 W A Gyro da t a D i r e c t i on a i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED DEPTH feet N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 1900.0 1950.0 2000.0 2050.0 2100.0 21.21 320.80 1864.7 23.31 320.17 1910.9 25.69 320.10 1956.4 27.69 320.88 2001.1 29.08 322.79 2045.1 198.7 1.87 272.5 309.5 214.7 4.22 291.1 310.2 232.2 4.77 311.6 310.8 251.2 4.07 333.7 311.5 271.6 3.31 357.1 312.2 173.25 N 210.36 W 187.85 N 222.42 W 203.77 N 235.71 W 221.10 N 249.99 W 239.79 N 264.67 W 2150.0 2200.0 2250.0 2300.0 2350.0 29.70 325.19 2088.7 29.75 326.60 2132.1 29.99 328.36 2175.4 30.44 329.93 2218.7 31.29 331.36 2261.6 293.1 2.67 381.2 312.9 315.3 1.40 405.4 313.7 337.8 1.81 429.6 314.5 360.9 1.81 454.0 315.3 384.6 2.25 478.8 316.1 259.64 N 280.17 N 301.16 N 322.76 N 345.12 N 279.08 W 292.98 W 306.37 W 319.27 W 331.84 W 2400.0 2450.0 2500.0 2550.0 2600.0 32.15 332.45 2304.1 33.20 334.15 2346.2 33.92 335.33 2387.9 34.46 336.60 2429.2 34.75 338.34 2470.4 409.2 2.08 504.1 316.9 434.7 2.79 530.1 317.8 461.0 1.94 556.6 318.6 487.9 1.78 583.4 319.4 515.3 2.06 610.5 320.2 368.31 N 392.43 N 417.42 N 443.08 N 469.31 N 344.21 W 356.34 W 368.13 W 379.57 W 390.45 W 2650.0 2700.0 2750.0 2800.0 2850.0 35.13 340.59 2511.4 35.65 342.11 2552.1 36.79 343.01 2592.5 37.70 343.50 2632.3 38.94 343.98 2671.5 543.2 2.68 637.6 321.1 571.6 2.05 664.8 322.0 600.6 2.51 692.6 322.8 630.5 1.92 721.0 323.7 661.1 2.54 750.2 324.5 496.12 N 523.56 N 551.75 N 580.73 N 610.49 N 400.50 W 409.76 W 418.61 W 427.33 W 436.01 W 2900.0 2950.0 3000.0 3050.0 3100.0 39.77 345.07 2710.1 40.97 347.45 2748.2 42.02 348.92 2785.7 42.63 349.97 2822.7 43.08 350.54 2859.3 692.5 2.16 780.1 325.3 724.7 3.90 810.4 326.1 757.7 2.87 841.1 326.9 791.3 1.87 872.3 327.8 825.3 1.19 903.9 328.6 641.05 N 672.50 N 704.92 N 738.02 N 771.53 N 444.46 W 452.15 W 458.92 W 465.09 W 470.85 W A Gy r o d a t a D i r e c t i o n a i S u rv e y B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED I DEPTH feet N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 3150.0 3200.0 3250.0 3300.0 3350.0 43.57 350.60 2895.7 44.17 350.66 2931.7 44.76 350.65 2967.4 45.47 350.74 3002.7 46.24 350.94 3037.5 859.6 894.2 929.2 964.6 1000.5 .99 935.8 329.4 1.20 968.1 330.1 1.17 1001.0 330.8 1.44 1034.4 331.5 1.57 1068.3 332.1 805.38 N 476.47 W 839.56 N 482.11 W 874.12 N 487.80 W 909.08 N 493.53 W 944.51 N 499.24 W 34 34 35 35 36 00 50 00 50 00 .0 .0 .0 .0 .0 47.06 351.45 3071.9 47.78 351.90 3105.7 48.80 352.55 3138.9 49.87 353.01 3171.5 50.46 353.53 3203.6 1036 1073 1111 1148 1187 .8 .6 .0 .9 .3 1.79 1102.8 332.8 1.58 1137.7 333.4 2.27 1173.0 333.9 2.24 1209.0 334.5 1.43 1245.4 335.1 980.44 N 504.80 W 1016.87 N 510.13 W 1053.85 N 515.18 W 1091.47 N 519.94 W 1129.60 N 524.44 W 3650 3700 3750 3800 3850 .0 .0 .0 .0 .0 51.06 354.63 3235.2 52.17 355.54 3266.2 54.03 356.37 3296.3 55.43 356.72 3325.1 56.03 356.86 3353.3 1226 1265 1305 1345 1387 .0 .2 .1 .8 .0 2.09 1282.1 335.7 2.64 1319.1 336.2 3.95 1356.8 336.8 2.87 1395.3 337.4 1.20 1434.3 337.9 1168.12 N 1207.17 N 1247.05 N 1287.80 N 1329.05 N 528.44 W 531.79 W 534.60 W 537.06 W 539.37 W 39 39 40 40 41 00 50 00 5O 00 .0 .0 .0 .0 .0 56.31 357.47 3381.1 56.72 357.99 3408.7 56.57 358.43 3436.2 55.84 358.70 3464.0 55.75 358.43 3492.1 1428 1470 1511 1552 1594 .4 .0 .5 .9 .0 1.16 1473.6 338.4 1.20 1513.0 339.0 .79 1552.5 339.5 1.51 1591.8 340.0 .48 1631.1 340.4 1370.54 N 1412.20 N 1453.95 N 1495.49 N 1536.83 N 541.43 W 543.08 W 544.39 W 545.43 W 546.46 W 41 42 42 43 43 50.0 00.0 50.0 00.0 50.0 55.26 357.85 3520.4 55.13 357.00 3549.0 54.86 356.07 3577.6 54.40 355.15 3606.6 53.87 354.42 3635.9 1635.0 1675.9 1716.8 1757.5 1798.0 1.37 1670.4 340.9 1.42 1709.8 341.2 1.62 1749.3 341.6 1.76 1788.9 341.9 1.59 1828.4 342.2 1578.01 N 1619.03 N 1659.91 N 1700.56 N 1740.91 N 547.80 W 549.65 W 552.12 W 555.24 W 558.92 W A Gyro da t a D i r e c t i o na i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 4400.0 53.72 354.32 3665.4 4450.0 53.29 354.32 3695.2 4500.0 53.41 354.19 3725.0 4550.0 53.77 354.00 3754.7 4600.0 53.82 353.84 3784.2 1838.3 .35 1867.9 342.5 1878.5 .86 1907.2 342.7 1918.6 .32 1946.6 342.9 1958.8 .77 1986.1 343.2 1999.2 .28 2025.7 343.4 1781.06 N 1821.06 N 1860.97 N 1901.00 N 1941.12 N 562.88 W 566.86 W 570.88 W 575.02 W 579.29 W 4650.0 53.78 353.62 3813.7 4700.0 53.67 353.40 3843.3 4750.0 54.06 353.29 3872.8 4800.0 54.30 353.09 3902.1 4850.0 54.42 352.78 3931.2 2039.5 .38 2065.4 343.6 2079.8 .41 2105.1 343.8 2120.2 .81 2145.0 344.0 2160.7 .59 2185.0 344.1 2201.4 .56 2225.2 344.3 1981.22 N 2021.27 N 2061.38 N 2101.64 N 2141.96 N 583.69 W 588.25 W 592.93 W 597.73 W 602.73 W 4900.0 54.35 352.38 3960.3 4950.0 53.43 352.46 3989.8 5000.0 53.53 352.30 4019.6 5050.0 53.76 352.12 4049.2 5100.0 53.80 352.07 4078.7 2242.0 .66 2265.4 344.4 2282.4 1.86 2305.4 344.6 2322.6 .33 2345.2 344.7 2362.8 .55 2385.1 344.8 2403.2 .11 2425.2 345.0 2182.27 N 2222.31 N 2262.14 N 2302.03 N 2341.99 N 607.98 W 613.31 W 618.64 W 624.10 W 629.65 W 5150.0 53.46 352.18 4108.4 5200.0 53.46 352.66 4138.2 5250.0 53.07 353.35 4168.1 5300.0 52.76 353.31 4198.2 5350.0 53.16 353.30 4228.3 2443.4 .71 2465.1 345.1 2483.6 .78 2504.9 345.2 2523.7 1.35 2544.7 345.3 2563.6 .62 2584.2 345.4 2603.5 .79 2623.7 345.6 2381.87 N 2421.69 N 2461.46 N 2501.08 N 2540.72 N 635.16 W 640.46 W 645.34 W 649.97 W 654.62 W 5400.0 53.01 353.14 4258.4 5450.0 53.02 352.88 4288.4 5500.0 53.27 352.43 4318.4 5550.0 53.62 352.06 4348.2 5600.0 53.71 351.89 4377.8 2643.5 .38 2663.3 345.7 2683.4 .42 2702.9 345.8 2723.4 .86 2742.7 345.9 2763.6 .93 2782.6 346.0 2803.8 .33 2822.6 346.1 2580.42 N 2620.06 N 2659.74 N 2699.54 N 2739.42 N 659.34 W 664.20 W 669.32 W 674.74 W 680.36 W A Gyroda t a D i r e c t i o n a i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 5650.0 5700.0 5750.0 5800.0 585O.O 53.56 352.20 4407.5 2844.1 53.15 353.25 4437.3 2884.2 52.82' 353.94 4467.4 2924.1 52.97 353.95 4497.6 2964.0 53.30 353.85 4527.6 3004.0 58 2862.7 346.1 88 2902.5 346.2 29 2942.1 346.3 31 2981.7 346.4 67 3021.3 346.5 2779.29 N 685.94 W 2819,09 N 691.02 W 2858.76 N 695.47 W 2898.41 N 699.68 W 2938.19 N 703.93 W 5900.0 5950.0 6000.0 6050.0 6100.0 53.53 353.78 4557.4 3044.1 53.49 353.96 4587.1 3084.3 52.53 354.74 4617.2 3124.2 52.51 355.07 4647.6 3163.9 52.67 355.17 4678.0 3203.6 49 3061.2 346.6 31 3101.0 346.7 29 3140.6 346.8 51 3179.9 346.9 36 3219.2 347.0 2978.10 N 708.26 W 3018.07 N 712.55 W 3057.82 N 716.48 W 3097.34 N 720.01 W 3136.91 N 723.39 W 6150.0 6200.0 6250.0 6300.0 6350.0 52.59 354.84 4708.3 3243.3 52.57 354.61 4738.7 3283.0 52.72 354.46 4769.1 3322.7 52.95 354.20 4799.3 3362.5 53.25 354.13 4829.3 3402.5 .55 .37 .39 .61 .62 3258.6 347.1 3298.0 347.2 3337.4 347.3 3376.9 347.4 3416.6 347.5 3176.50 N 3216.04 N 3255.61 N 3295.26 N 3335.04 N 726.85 W 730.50 W 734.28 W 738.22 W 742.28 W 6400.0 6450.0 6500.0 6550.0 6600.0 53.42 354.12 4859.1 3442.6 52.37 354.82 4889.3 3482.4 52.41 354.98 4919.8 3522.0 52.97 354.78 4950.1 3561.8 53.30 354.77 4980.1 3601.7 34 38 27 16 65 3456.5 347.5 3496.1 347.6 3535.4 347.7 3574.8 347.8 3614.5 347.8 3374.93 N 3414.62 N 3454.08 N 3493.69 N 3533.52 N 746.39 W 750,24 W 753,76 W 757.31 W 760,96 W 6650.0 6700.0 6750.0 6800.0 6850.0 53.46 354.92 5009.9 3641.8 53.67 354.98 5039.6 3682.0 52.40 355.16 5069.7 3721.9 52.32 354.83 5100.2 3761.5 52.72 354.30 5130.7 3801.2 41 44 56 54 16 3654.4 347.9 3694.3 348.0 3733.9 348.1 3773.3 348.1 3812.7 348.2 3573.49 N 3613.56 N 3653.37 N 3692.81 N 3732.31 N 764.56 W 768.10 W 771.54 W 774.99 W 778.75 W A Gyr od a t a D i r e c t i on a i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 6900.0 53.01 353.90 5160.8 6950.0 53.23 353.49 5190.9 7000.0 53.59 353.25 5220.7 7050.0 54.11 353.07 5250.2 7100.0 53.74 353.51 5279.6 3841.0 .86 3852.3 348.3 3881.0 .79 3892.2 348.3 3921.1 .82 3932.1 348.4 3961.5 1.08 3972.4 348.4 4001.9 1.04 4012.7 348.5 3771.96 N 3811.71 N 3851.59 N 3891.67 N 3931.81 N 782.85 W 787.24 W 791.87 W 796.68 W 801.40 W 7150.0 53.22 354.43 5309.4 7200.0 52.94 354.70 5339.4 7250.0 53.20 354.83 5369.4 7300.0 53.46 354.97 5399.3 7350.0 53.49 354.97 5429.1 4042.1 1.81 4052.6 348.5 4082.0 .71 4092.4 348.6 4122.0 .56 4132.1 348.7 4162.1 .58 4172.0 348.7 4202.2 .06 4211.9 348.8 3971.77 N 4011.56 N 4051.36 N 4091.30 N 4131.33 N 805.62 W 809.41 W 813.06 W 816.62 W 820.14 W 7400.0 53.46 355.00 5458.8 7450.0 53.71 354.95 5488.5 7500.0 53.78 354.51 5518.1 7550.0 54.22 354.05 5547.4 7600.0 54.42 353.66 5576.6 4242.4 .07 4251.9 348.8 4282.6 .50 4291.9 348.9 4322.9 .73 4332.0 348.9 4363.3 1.14 4372.3 349.0 4403.9 .75 4412.8 349.0 4171.36 N 4211.44 N 4251.59 N 4291.84 N 4332.22 N 823.66 W 827.18 W 830.89 W 834.92 W 839.27 W 7650.0 54.24 353.93 5605.8 7700.0 52.64 355.72 5635.5 7750.0 52.94 355.88 5665.8 7800.0 53.18 355.75 5695.8 7850.0 53.40 355.43 5725.7 4444.5 .56 4453.2 349.1 4484.6 4.32 4493.2 349.1 4524.4 .66 4532.8 349.2 4564.3 .52 4572.5 349.2 4604.3 .68 4612.3 349.3 4372.60 N 4412.60 N 4452.31 N 4492.17 N 4532.13 N 843.66 W 847.29 W 850.20 W 853.12 W 856.20 W 7900.0 53.55 355.05 5755.5 7950.0 54.00 354.69 5785.0 8000.0 54.30 354.26 5814.3 8050.0 54.62 353.85 5843.4 8100.0 55.11 353.61 5872.1 4644.5 .69 4652.3 349.4 4684.8 1.06 4692.4 349.4 4725.3 .92 4732.8 349.4 4766.0 .92 4773.3 349.5 4806.8 1.05 4814.1 349.5 4572.17 N 4612.35 N 4652.69 N 4693.15 N 4733.80 N 859.53 W 863.14 W 867.04 W 871.26 W 875.72 W A Gyr oda t a D i r e c t i ona i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 8150.0 8200.0 8250.0 8300.0 8350.0 53.47 354.49 5901.3 53.40 354.78 5931.1 53.93 354.68 5960.7 54.74 354.54 5989.9 55.24 354.22 6018.6 4847.4 3.58 4854.6 349.6 4887.6 .49 4894.6 349.6 4927.8 1.06 4934.7 349.6 4968.4 1.64 4975.2 349.7 5009.3 1.13 5016.0 349.7 4774.18 N 4814.16 N 4854.27 N 4894.71 N 4935.47 N 879.94 W 883.70 W 887.40 W 891.21 W 895.23 W 8400.0 8450.0 8500.0 8550.0 8600.0 55.64 354.15 6046.9 53.79 355.07 6075.8 53.93 355.09 6105.3 54.38 354.80 6134.6 54.71 354.44 6163.6 5050.5 .81 5057.1 349.8 5091.3 3.99 5097.7 349.8 5131.6 .28 5137.9 349.8 5172.1 1.01 5178.3 349.9 5212.8 .88 5218.9 349.9 4976.43 N 5017.06 N 5057.29 N 5097.67 N 5138.21 N 899.40 W 903.24 W 906.70 W 910.27 W 914.09 W 8650.0 8700.0 8750.0 8800.0 8850.0 55.33 354.15 6192.3 55.24 354.20 6220.7 54.00 354.50 6249.7 53.44 355.76 6279.3 52.30 356.99 6309.4 5253.8 1.33 5259.7 349.9 5294.9 .19 5300.7 350.0 5335.6 2.53 5341.4 350.0 5375.9 2.32 5381.5 350.1 5415.7 3.01 5421.1 350.1 5178.98 N 5219.86 N 5260.43 N 5300.59 N 5340.38 N 918.16 W 922.33 W 926.34 W 929.76 W 932.29 W 8900.0 8950.0 9000.0 9050.0 9100.0 52.81 356.93 6339.8 53.54 356.69 6369.8 53.98 356.43 6399.4 54.21 356.31 6428.7 52.94 356.55 6458.4 5455.3 1.04 5460.6 350.1 5495.2 1.49 5500.3 350.2 5535.4 .99 5540.4 350.2 5575.8 .48 5580.7 350.3 5616.0 2.56 5620.7 350.3 5380.02 N 5419.98 N 5460.23 N 5500.65 N 5540.80 N 934.39 W 936.62 W 939.04 W 941.61 W 944.11 W 9150.0 9200.0 9250.0 9300.0 9350.0 52.29 356.50 6488.7 52.68 356.13 6519.2 52.93 355.88 6549.4 53.22 355.66 6579.5 53.34 355.40 6609.4 5655.6 1.30 5660.2 350.4 5695.2 .97 5699.6 350.4 5735.0 .64 5739.2 350.5 5774.9 .68 5779.0 350.5 5814.9 .48 5819.0 350.5 5580.46 N 5620.03 N 5659.77 N 5699.63 N 5739.58 N 946.52 W 949.07 W 951.85 W 954.79 W 957.92 W A Gyro d a t a D i r e c t i o n a i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED DEPTH feet N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 9400.0 9450.0 9500.0 9550.0 9600.0 52.02 356.02 6639.7 51.78 356.00 6670.5 51.78 355.71 6701.5 51.94 355.35 6732.3 51.98 355.03 6763.1 5854.6 2.82 5858.6 350.6 5893.9 .48 5897.7 350.6 5933.1 .46 5936.9 350.6 5972.4 .64 5976.0 350.7 6011.7 .51 6015.3 350.7 5779.24 N 960.89 W 5818,49 N 963.63 W 5857.67 N 966.48 W 5896.88 N 969.54 W 5936.12 N 972.84 W 9650.0 9700.0 9750.0 9800.0 9850.0 52.10 354.68 6793.9 51.86 354.23 6824.7 52.15 353.94 6855.5 52.29 354.03 6886.1 51.83 355.13 6916.8 6051.1 .59 6054.6 350.7 6090.5 .86 6093.9 350.7 6129.9 .74 6133.3 350.8 6169.4 .31 6172.7 350.8 6208.8 1.96 6212.1 350.8 5975.38 N 976.38 W 6014.59 N 980.18 W 6053.78 N 984.25 W 6093.08 N 988.39 W 6132.33 N 992.11 W 9900.0 9950.0 10000.0 10050.0 10100.0 51.35 355.35 6947.9 51.58 355.26 6979.1 51.69 355.17 7010.1 51.87 354.96 7041.0 52.02 354.73 7071.8 6247.9 1.03 6251.1 350.8 6287.0 .49 6290.1 350.9 6326.2 .27 6329.2 350.9 6365.4 .48 6368.4 350.9 6404.8 .48 6407.7 350.9 6171.38 N 995.36 W 6210.36 N 998.56 W 6249.43 N 1001.83 W 6288.56 N 1005.21 W 6327.77 N 1008.75 W 10150.0 10200.0 10250.0 10300.0 10350.0 52.05 354.64 7102.6 52.17 354.47 7133.3 52.17 354.17 7164.0 52.21 354.07 7194.6 52.60 353.91 7225.1 6444.2 .15 6447.0 351.0 6483.6 .37 6486.4 351.0 6523.1 .47 6525.8 351.0 6562.6 .18 6565.3 351.0 6602.2 .82 6604.8 351.0 6367.02 N 1012.40 W 6406.31 N 1016.15 W 6445.60 N 1020.06 W 6484.90 N 1024.10 W 6524.29 N 1028.25 W 10400.0 52.75 353.81 7255.5 10450.0 52.89 353.55 7285.7 10500.0 52.72 353.54 7315.9 10550.0 53.03 353.40 7346.1 10600.0 53.04 353.44 7376.1 6641.9 .35 6644.5 351.1 6681.7 .49 6684.3 351.1 6721.6 .34 6724.1 351.1 6761.4 .67 6764.0 351.1 6801.4 .07 6803.9 351.1 6563.83 N 1032.50 W 6603.42 N 1036.88 W 6643.00 N 1041.36 W 6682.60 N 1045.89 W 6722.29 N 1050.47 W A Gyro da t a D i r e c t i o na I Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page MEASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 10650.0 10700.0 10750.0 10800.0 10850.0 53.00 353.11 7406.2 52.65 352.93 7436.4 52.55 352.97 7466.8 53.30 352.96 7496.9 53.46 352.79 7526.8 6841.3 .54 6843.8 351.1 6881.2 .75 6883.6 351.1 6920.9 .21 6923.3 351.2 6960.8 1.50 6963.2 351.2 7000.9 .42 7003.3 351.2 6761.96 N 6801.50 N 6840.92 N 6880.52 N 6920.34 N 1055.14 W 1059.98 W 1064.86 W 1069.75 W 1074.72 W 10900.0 10950.0 11000.0 11050.0 11100.0 53.47 352.68 7556.5 53.55 352.70 7586.3 52.02 353.55 7616.5 51.56 353.97 7647.4 49.72 355.12 7679.1 7041.1 .19 7043.5 351.2 7081.3 .18 7083.6 351.2 7121.1 3.36 7123.4 351.2 7160.4 1.13 7162.7 351.2 7199.0 4.08 7201.3 351.2 6960.19 N 7000.06 N 7039.59 N 7078.64 N 7117.13 N 1079.80 W 1084.92 W 1089.69 W 1093.96 W 1097.64 W 11150.0 11200.0 11250.0 11300.0 11350.0 49.10 355.36 7711.7 49.24 355.16 7744.4 49.38 354.93 7777.0 49.65 354.82 7809.4 49.83 354.77 7841.7 7236.9 1.30 7239.1 351.3 7274.7 .42 7276.9 351.3 7312.6 .45 7314.7 351.3 7350.6 .57 7352.7 351.3 7388.7 .37 7390.8 351.3 7154.96 N 7192.67 N 7230.44 N 7268.32 N 7306.31 N 1100.79 W 1103.91 W 1107.19 W 1110.59 W 1114.05 W 11400.0 11450.0 11500.0 11550.0 11600.0 11650.0 11700.0 11750.0 11800.0 11850.0 50.10 354.88 7873.9 50.42 354.93 7905.9 51.00 355.14 7937.5 50.18 356.40 7969.3 48.60 357.62 8001.8 47.09 358.28 8035.4 46.57 359.24 8069.6 45.40 359.49 8104.3 45.53 358.43 8139.4 43.83 358.40 8174.9 7427.0 .56 7429.0 351.3 7465.4 .65 7467.3 351.4 7504.1 1.20 7506.0 351.4 7542.7 2.55 7544.5 351.4 7580.5 3.67 7582.3 351.4 7617.4 3.16 7619.1 351.5 7653.7 1.76 7655.3 351.5 7689.4 2.36 7690.9 351.5 7724.8 1.53 7726.2 351.6 7759.8 3.40 7761.1 351.6 7344.44 N 7382.74 N 7421.29 N 7459.81 N 7497.72 N 7534.76 N 7571.22 N 7607.17 N 7642.80 N 7677.95 N 1117.50 W 1120.91 W 1124.26 W 1127.11 W 1129.10 W 1130.43 W 1131.22 W 1131.62 W 1132.26 W 1133.23 W A Gyro da t a D i r e c t i ona i S u rvey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page 10 MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 11900.0 42.85 358.77 8211.3 11950.0 40.80 359.20 8248.6 12000.0 38.12 359.91 8287.2 12050.0 35.89 359.53 8327.1 12100.0 35.20 359.00 8367.8 7793.9 2.03 7795.2 351.6 7827.1 4.13 7828.3 351.7 7858.6 5.45 7859.7 351.7 7888.5 4.47 7889.5 351.7 7917.3 1.52 7918.3 351.8 7712.25 N 7745.58 N 7777.36 N 7807.45 N 7836.51 N 1134.08 W 1134.67 W 1134.92 W 1135.06 W 1135.43 W 12150.0 34.55 358.59 8408.8 12200.0 34.20 358.64 8450.1 12250.0 33.27 358.74 8491.6 12300.0 32.74 358.42 8533.6 12350.0 31.58 358.50 8575.9 7945.8 1.38 7946.7 351.8 7973.8 .70 7974.7 351.8 8001.4 1.87 8002.3 351.8 8028.5 1.11 8029.4 351.9 8055.0 2.32 8055.8 351.9 7865.09 N 7893.31 N 7921.07 N 7948.30 N 7974.90 N 1136.03 W 1136.72 W 1137.35 W 1138.03 W 1138.74 W 12400.0 31.26 358.34 8618.6 12450.0 31.27 357.96 8661.3 12500.0 30.31 358.11 8704.3 12550.0 28.43 358.64 8747.8 12600.0 27.27 358.86 8792.0 8080.9 .66 8081.7 351.9 8106.8 .39 8107.5 351.9 8132.3 1.94 8132.9 351.9 8156.7 3.78 8157.3 352.0 8179.9 2.34 8180.5 352.0 8000.96 N 8026.89 N 8052.47 N 8076.98 N 8100.34 N 1139.46 W 1140.30 W 1141.18 W 1141.88 W 1142.39 W 12650.0 26.25 358.90 8836.7 12700.0 24.78 359.77 8881.8 12750.0 23.77 .63 8927.4 12800.0 22.26 .36 8973.4 12850.0 21.99 .32 9019.7 8202.3 2.03 8202.8 352.0 8223.7 3.04 8224.2 352.0 8244.0 2.14 8244.6 352.0 8263.4 3.04 8263.9 352.1 8282.1 .52 8282.5 352.1 8122.85 N 8144.38 N 8164.94 N 8184.48 N 8203.31 N 1142.83 W 1143.09 W 1143.02 W 1142.85 W 1142.74 W 12900.0 22.26 .63 9066.0 12950.0 22.23 2.11 9112.3 13000.0 21.47 359.53 9158.7 13050.0 20.96 354.93 9205.3 13100.0 20.68 353.15 9252.1 8300.7 .59 8301.2 352.1 8319.4 1.12 8319.8 352.1 8337.9 2.45 8338.2 352.1 8355.9 3.48 8356.2 352.1 8373.6 1.38 8374.0 352.1 8222.15 N 8241.07 N 8259.67 N 8277.73 N 8295.40 N 1142.58 W 1142.13 W 1141.86 W 1142.72 W 1144.57 W A Gy r o da t a D i r e c t i ona i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. 1 NORTH SLOPE, ALASKA Job Number: A1297GCE434 Page 11 MEASURED I N C L AZIMUTH VERTICAL VERTICAL DOGLEG CLOSURE DEPTH DEPTH SECTION SEVERITY DIST. AZIMUTH feet deg. deg. feet feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 13150.0 20.46 352.69 9298.9 8391.2 .55 13160.0 20.33 352.77 9308.3 8394.7 1.33 8391.6 352.1 8395.0 352.1 8312.83 N 8316.29 N 1146.73 W 1147.17 W Final Station Closure: Distance: 8395.04 ft Az: 352.15 deg. A Gy r oda t a D i r e c t i ona i Survey for B.P. EXPLORATION SAMBUCA FIELD, WELL NO. 1 NORTH SLOPE, ALASKA Job Number: SUB434 Run Date: 12-Dec-97 14:00:00 Surveyor: TOM STODDARD Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.343000 deg. N Sub-sea Correction from Vertical Reference: 69 ft. Azimuth Correction: Gyro: Bearings are Relative to True North Proposed Well Direction: 352.670 deg Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference A Gyr oda t a D i r e c t i o n a i S u rve y B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: SUB434 Page SUBSEA I N C L AZIMUTH DEPTH feet deg. deg. VERTICAL VERTICAL DOGLEG CLOSURE DEPTH SECTION SEVERITY DIST. AZIMUTH feet feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet -69.0 0.00 0.00 100.0 .36 199.80 200.0 .70 275.46 300.0 1.17 272.18 400.0 1.90 270.55 0.0 0.0 0.00 0.0 0.0 169.0 .1 .37 .4 208.7 269.0 .4 .37 1.5 283.5 369.0 .7 .47 3.4 277.1 469.0 1.1 .73 6.5 274.1 .00 N 0.00 E .12 N .27 W .23 N 1.15 W .32 N 2.79 W .36 N 5.46 W 500.0 2.87 270.00 600.0 3.84 269.87 700.0 4.61 271.51 800.0 5.64 281.18 900.0 7.33 293.94 569.0 1.6 .97 11.1 272.4 669.0 2.3 .97 17.5 271.4 769.0 3.4 .78 25.2 271.2 869.0 5.6 1.38 34.6 272.7 969.0 10.6 2.21 46.1 276.8 .37 N 9.63 W .37 N 15.49 W .47 N 22.87 W .58 N 31.71 W .23 N 42.32 W 1000.0 8.99 302.88 1100.0 10.74 306.73 1200.0 13.17 309.11 1300.0 15.55 312.55 1400.0 16.64 316.13 1069.0 19.1 2.05 60.3 282.3 1169.0 30.8 1.86 77.2 287.6 1269.0 45.9 2.44 98.1 292.2 1369.0 64.8 2.32 122.4 296.3 1469.0 87.6 1.11 149.5 299.9 12.22 N 54.76 W 22.20 N 68.95 W 35.26 N 85.59 W 51.81 N 104.81 W 72.14 N 125.51 W 1500.0 17.23 318.23 1600.0 18.11 320.46 1700.0 19.76 322.05 1800.0 21.41 320.75 1900.0 26.25 320.32 1569.0 112.4 .77 177.7 302.9 1669.0 139.0 1.11 207.1 305.4 1769.0 168.2 1.65 238.5 307.7 1869.0 200.2 2.09 291.1 309.5 1969.0 237.5 4.57 333.7 311.0 94.49 N 146.17 W 118.63 N 166.90 W 145.38 N 188.26 W 174.61 N 211.49 W 208.64 N 239.72 W 2000.0 29.42 324.11 2100.0 29.95 328.10 2200.0 31.44 331.55 2300.0 33.60 334.79 2400.0 34.74 338.28 2069.0 283.4 2.96 381.2 312.6 2169.0 334.4 1.75 429.6 314.4 2269.0 388.9 2.22 504.1 316.3 2369.0 449.1 2.32 556.6 318.2 2469.0 514.4 2.05 610.5 320.2 250.68 N 272.58 W 298.04 N 304.38 W 349.16 N 334.00 W 406.11 N 362.79 W 468.43 N 390.09 W A Gyro da t a D i r e c t i o n a i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: SUB434 Page SUBSEA I N C L AZIMUTH DEPTH feet deg. deg. VERTICAL VERTICAL DOGLEG CLOSURE DEPTH SECTION SEVERITY DIST. AZIMUTH feet feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 2500.0 36.13 342.48 2600.0 38.86 343.95 2700.0 41.55 348.27 2800.0 43.21 350.56 2900.0 44.79 350.65 2569.0 583.7 2.25 692.6 322.3 2669.0 659.2 2.50 750.2 324.4 2769.0 743.0 3.33 841.1 326.6 2869.0 834.4 1.13 935.8 328.8 2969.0 930.8 1.18 1034.4 330.9 535.35 N 413.46 W 608.60 N 435.46 W 690.46 N 455.90 W 780.54 N 472.34 W 875.68 N 488.05 W 3000.0 46.99 351.41 3100.0 49.78 352.98 3200.0 52.34 355.62 3300.0 56.19 357.20 3400.0 55.83 358.65 3069.0 1033.8 1.77 1102.8 332.7 3169.0 1145.9 2.24 1209.0 334.5 3269.0 1268.8 2.76 1356.8 336.3 3369.0 1410.4 1.18 1473.6 338.2 3469.0 1560.2 1.33 1631.1 340.0 977.45 N 504.34 W 1088.55 N 519.57 W 1210.84 N 532.05 W 1352.48 N 540.53 W 1502.83 N 545.61 W 3500.0 54.94 356.35 3600.0 53.67 354.32 3700.0 53.79 353.93 3800.0 54.01 353.31 3900.0 54.08 352.40 3569.0 1704.5 1.56 1749.3 341.5 3669.0 1843.2 .41 1907.2 342.5 3769.0 1978.4 .53 2025.7 343.3 3869.0 2115.0 .75 2145.0 343.9 3969.0 2253.9 1.02 2305.4 344.5 1647.58 N 551.37 W 1785.88 N 563.36 W 1920.45 N 577.09 W 2056.19 N 592.32 W 2194.06 N 609.55 W 4000.0 53.79 352.08 4100.0 53.06 353.35 4200.0 53.02 353.05 4300.0 53.68 351.94 4400.0 52.83 353.94 4069.0 2389.9 .26 2425.2 344.9 4169.0 2524.9 1.33 2584.2 345.3 4269.0 2657.6 .40 2702.9 345.7 4369.0 2791.8 .51 2822.6 346.0 4469.0 2926.2 1.24 2981.7 346.3 2328.82 N 2462.70 N 2594.44 N 2727.53 N 2860.83 N 627.82 W 645.49 W 661.06 W 678.69 W 695.69 W 4500.0 53.52 353.85 4600.0 52.63 355.14 4700.0 52.72 354.46 4800.0 53.08 354.34 4900.0 53.18 354.77 4569.0 3059.8 .42 3101.0 346.7 4669.0 3191.8 .41 3219.2 347.0 4769.0 3322.6 .39 3337.4 347.3 4869.0 3455.6 1.00 3496.1 347.6 4969.0 3586.9 .84 3614.5 347.8 2993.72 N 3125.19 N 3255.53 N 3387.90 N 3518.76 N 709.93 W 722.39 W 734.27 W 747.65 W 759.61 W A Gyro da t a D i r e c t i o n a i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: SUB434 Page SUBSEA I N C L AZIMUTH DEPTH feet deg. deg. VERTICAL VERTICAL DOGLEG CLOSURE DEPTH SECTION SEVERITY DIST. AZIMUTH feet feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 5000.0 52.43 355.15 5100.0 53.07 353.79 5200.0 53.87 353.35 5300.0 53.19 354.82 5400.0 53.55 354.98 5069.0 3721.0 2.51 3733.9 348.1 5169.0 3851.9 .84 3892.2 348.3 5269.0 3987.4 1.05 4012.7 348.5 5369.0 4121.4 .56 4132.1 348.7 5469.0 4256.2 .21 4291.9 348.9 3652.44 N 3782.76 N 3917.37 N 4050.78 N 4185.12 N 771.46 W 784.04 W 799.71 W 813.00 W 824.87 W 5500.0 54.37 353.76 5600.0 52.97 355.87 5700.0 53.76 354.88 5800.0 55.06 353.63 5900.0 54.16 354.64 5569.0 4393.3 .85 4412.8 349.0 5669.0 4528.7 .65 4572.5 349.2 5769.0 4662.9 .86 4692.4 349.4 5869.0 4802.4 1.04 4814.1 349.5 5969.0 4939.3 1.23 4975.2 349.7 4321.68 N 4456.57 N 4590.55 N 4729.35 N 4865.72 N 838.14 W 850.51 W 861.18 W 875.24 W 888.48 W 6000.0 54.23 354.85 6100.0 54.82 354.39 6200.0 53.64 355.33 6300.0 53.52 356.70 6400.0 52.71 356.53 6069.0 5081.7 3.24 5097.7 349.8 6169.0 5220.6 .97 5259.7 349.9 6269.0 5361.9 2.40 5381.5 350.0 6369.0 5494.1 1.48 5500.3 350.2 6469.0 5629.8 2.12 5660.2 350.3 5007.47 N 5145.90 N 5286.66 N 5418.89 N 5554.66 N 902.33 W 914.85 W 928.58 W 936.56 W 944.95 W 6500.0 53.12 355.74 6600.0 51.80 356.00 6700.0 52.00 354.96 6800.0 52.21 353.98 6900.0 51.51 355.29 6569.0 5761.0 .67 5779.0 350.5 6669.0 5891.9 .59 5897.7 350.6 6769.0 6019.2 .53 6054.6 350.7 6869.0 6147.3 .55 6172.7 350.8 6969.0 6274.4 .67 6290.1 350.9 5685.74 N 5816.55 N 5943.60 N 6071.14 N 6197.77 N 953.77 W 963.50 W 973.52 W 986.07 W 997.53 W 7000.0 52.01 354.75 7100.0 52.17 354.16 7200.0 52.81 353.70 7300.0 53.04 353.43 7400.0 52.60 352.97 7069.0 6401.1 .48 6407.7 350.9 7169.0 6529.5 .42 6565.3 351.0 7269.0 6659.8 .42 6684.3 351.1 7369.0 6791.9 .21 6803.9 351.1 7469.0 6923.8 .30 6963.2 351.2 6324.15 N 6452.04 N 6581.58 N 6712.86 N 6843.81 N 1008.43 W 1020.72 W 1034.46 W 1049.38 W 1065.22 W A Gyro da t a D i r e c t i on a i Survey B.P. EXPLORATION SAMBUCA FIELD, WELL NO. NORTH SLOPE, ALASKA Job Number: SUB434 Page SUBSEA I N C L AZIMUTH DEPTH feet deg. deg. VERTICAL VERTICAL DOGLEG CLOSURE DEPTH SECTION SEVERITY DIST. AZIMUTH feet feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 7500.0 53.50 352.69 7600.0 50.31 354.76 7700.0 49.35 354.98 7800.0 50.06 354.86 7900.0 50.19 356.39 7569.0 7057.9 .18 7083.6 351.2 7669.0 7186.6 3.14 7201.3 351.2 7769.0 7303.4 .44 7314.7 351.3 7869.0 7421.2 .53 7429.0 351.3 7969.0 7542.3 2.54 7544.5 351.4 6976.90 N 1081.95 W 7104.81 N 1096.46 W 7221.21 N 1106.39 W 7338.63 N 1116.97 W 7459.48 N 1127.09 W 8000.0 46.58 359.22 8100.0 44.11 358.41 8200.0 39.38 359.58 8300.0 35.18 358.99 8400.0 33.77 358.69 8069.0 7653.1 1.78 7655.3 351.5 8169.0 7753.9 3.09 7761.1 351.6 8269.0 7843.7 4.83 7859.7 351.7 8369.0 7918.2 1.51 7946.7 351.8 8469.0 7986.4 1.23 8002.3 351.8 7570.60 N 7672.07 N 7762.40 N 7837.36 N 7905.95 N 1131.20 W 1133.07 W 1134.80 W 1135.45 W 1137.01 W 8500.0 31.77 358.48 8600.0 31.10 357.99 8700.0 27.88 358.74 8800.0 25.20 359.52 8900.0 22.40 .38 8569.0 8050.7 2.13 8055.8 351.9 8669.0 8111.3 .67 8132.9 351.9 8769.0 8167.8 3.09 8180.5 352.0 8869.0 8217.6 2.75 8224.2 352.0 8969.0 8261.6 2.95 8263.9 352.0 7970.56 N 8031.47 N 8088.16 N 8138.27 N 8182.61 N 1138.63 W 1140.46 W 1142.12 W 1143.01 W 1142.86 W 9000.0 22.26 .72 9100.0 21.36 358.52 9200.0 20.60 352.99 9239.3 20.33 352.77 9069.0 8301.9 .62 8319.8 352.1 9169.0 8341.8 2.68 8356.2 352.1 9269.0 8380.0 1.08 8391.6 352.1 9308.3 8394.7 1.33 8395.0 352.1 8223.36 N 8263.65 N 8301.70 N 8316.29 N 1142.55 W 1142.05 W 1145.35 W 1147.17 W Final Station Closure: Distance: 8395.04 ft Az: 352.15 deg. 4. QUALITY CONTROL QUALITY CONTII~OL REPORT JOB NUMBER: A1297GCE434 TOOL NUMBER: 777 MAXIMUM GYRO TEMPERATURE: 84.92 C MAXIMUM AMBIENT TEMPERATURE: 95.33 C MAXIMUM INCLINATION: 56.4 AVERAGE AZIMUTH: 352.15 WIRELINE REZERO VALUE: N/A REZERO ERROR / K: N/A CALIBRATION USED FOR FIELD SURVEY: 2040 CALIBRATION USED FOR FINAL SURVEY: 2040 PRE JOB MASS BALANCE OFFSET CHECK: .25 POST JOB MASS BALANCE OFFSET CHECK]: USED O.O/N/A CONTINUOUS CONDITION OF SHOCK WATCHES .3O UPON ARRIVAL AT RIG: OFF UPON COMPLETION OF SURVEY: OFF UPON RETURN TO ATLAS OFF BOTTOM LINE COMPARISIONS M.D. INC AZIMUTH TVD NORTHING EASTING MWD 13164 20.29 353.19 9331.03 8313.2 -1047.2 FINAL SURVEY 13160 20.33 352.77 9308.3 8316.3 -1147.2 FUNCTION TEST JOB NUMBER: A1297GCE434 5 Survey stations were collected at the measured depth shown below. The tables show the repeatability of the gyro tool in both inclination and azimuth at one measured depth. INCLINATION M.D. ft 1 2 3 4 5 1302 13.86 13.86 13.86 13.86 13.86 AZIMUTH M.D. ft 1 2 3 4 5 1302 309.82 309.79 309.83 309.89 309.72 5. EQUIPMENT AND CHRONOLOGICAL REPORT EQUIPMENT REPORT JOB NUMBER: A1297GCE434 DOWNHOLE ELECTRONICS SURFACE ELECTRONICS PRIMARY TOOL No. 777 GYRO SECTION DATA SECTION POWER SECTION BACKUP TOOL No. 742 GYRO SECTION DATA SECTION POWER SECTION A0169 C0111 C0112 A0124 C0089 C0086 COMPUTER POWER SUPPLY PRINTER INTERFACE COMPUTER POWER SUPPLY PRINTER INTERFACE A0433 A0085 A0079 A0143 A0349 A0107 A0029 A0055 WIRELINE COMPANY: CABLE SIZE: 7/32" SCHLUMBERGER RUNNING GEAR 2.5" HOUSING AND 3" ECCENTRIC BAR TOTAL LENGTH OF TOOL :24' MAXIMUM O.D.: 3 INCHES TOTAL WEIGHT OF TOOL: 275 POUNDS CHRONOLOGICAL REPORT JOB NUMBER: A1297GCE434 WEDNESDAY, 12/11/97 12:00 CHECK TOOLS, JOB TOMORROW A.M. THURDAY, 12/12/97 07:00 ll:00 12:00 14:00 14:30 17:30 20:00 20:30 21:15 TO LOCATION ARRIVE LOCATION: SCHL~ERGER RUNNING GR/CCL MU TOOL PU GYRO. START 1NRUN SURVEY SURVEY INRUN TO 13160' OUTRUN CONTINUOUS TO 1000' LD TOOL RETURN TO ATLAS FRIDAY, 12/13/97 07:00 CHECK TOOL, PROCESS SURVEY 10:00 RETURN TO BOC W/RESULTS 12:00 STANDBY FOR NEXT JOB BP EXPLORATION (ALASKA), INC. SAM NO. 1 Prudhoe_ Bay Field North Slope,-Alaska M CROF LM[D Epoch Well Logging, trim SAM NO. I WELL REPORT 125' to t3,282' 0~25~97 to 11/23/97 Prepared By: EPOCH WELL LOGGING, INC. TABLE OF CONTENTS WELL RESUME DRILLING AND FORMATION SUMMARY LITHOLOGY SUMMARY SHOW REPORTS DAILY ACTIVITY SUMMARY SURVEY SUMMARY MUD REPORTS BIT RECORD FORMATION LOG - MD FORMATION LOG - TVD DRILLING DYNAMICS LOG WELL RESUME WELL NAME: LOCATION: BOROUGH: STATE: ELEVATION: B.P. EXPLORATION (ALASKA), INC. SAM NO. 1 PRUDHOE BAY NORTH SLOPE ALASKA KELLY BUSHING: 69' AMSL OPERATOR: Operator Representatives: Geologist: Wellsite Geologist: CONTRACTOR: Rig: MUDLOGGING COMPANY: Logging Geologists: B.P. EXPLORATION (ALASKA), INC. G.W. CRAIG, MIKE WHITELEY ALISTAIR BENT FRANK A. RADELLA DOYON DRILLING, INC. #9/LAND EPOCH WELL LOGGING INC. JOHN MORRIS ARTEM RATCHKOVSKI MUD COMPANY: MWD COMPANY: DIRECTIONAL COMPANY: CEMENT COMPANY: WIREL~NE COMPANY: BAROID DRILLING FLUIDS SPERRY SUN SPERRY SUN HALLIBURTON SCHLUMBERGER BP EXPLORATION (ALASKA) SAM NO. t DRILLING AND FORMATION SUMMARY DRILLING SUIVIMARY The main objective of the Sam No. I was to develop the hydrocarbon potential of the Sag River, Ivishak, and (if present) Sierra Nevada reservoirs. Epoch Well Logging provided RIGWATCHTM and mudlogging services from 125' through the total depth of 13282'. The well was spudded with Doyon Drilling Company's Rig #9 on October 25, 1997, and reached a total depth of 13,282' MD (9,441' TVD) on November 23, 1997.' FORMATION SUMMARY Mudlogging operations commenced at 125' on October 25, 1997. Hydrogen flame ionization total gas and chromatograph detectors were employed to detect formation gases from 125' through Total Depth at 13,282'. The gas was extracted from the mud via an air driven trap located in the possum belly of the shale shakers. Continuous sample extraction from the agitator to the logging unit detectors provided formation gas samples for analysis via 3/8" polyethylene tubing. The gas and cuttings samples were lagged initially by RIGWATCH software programs utilized by Epoch. The sample lags were adjusted based on carbide tests, bottoms up times from trip gases and connection gases. The chromatograph was calibrated to read quantitative analysis of formation gases versus a known background gas quantity. The gas system was tested and calibrated prior to mudlogging services coming on line and during all tdps and other periods of time while we were not circulating. The gas trap was cleaned and maintained on a daily basis. Surface sands and conglomerates down to 4445' produced little gas, usually averaging 5 to 20 units over background. Only methane was recorded on the chromatograph for the above interval. No oil shows were recorded over this interval. A section of claystone was recorded from 4350' to 4424' providing a marker for the following SV 3 sand which was drilled from 4424' to 4445' where 9 5/8" casing was run. The intermediate hole section consisted of mainly interbedded sand and claystone with minor limestone and lignite down to the top of the Ugnu formation at approximately 6145'. A 25 foot thick coal seam was assumed to mark the top of the Ugnu. Lithology in the Ugnu consisted of interbedded sand and claystone with minor coal siltstone and limestone. Only methane was observed in this interval down to 9262'. The top of the Seabee-Colville mudstones is estimated to be at 9262.' The percentage of sand dropped significantly and the lithology became dominantly claystone. It was noted that methane, ethane and propane were present below 9262'. The interval from 9495' to 12915' is notable in that methane through pentane is commonly present. The prognosed Sierra Nevada sand was present but had only trace oil shows. Note the gas values from 11390' to 11413'. A detailed show report on this interval is included as Show Report #1. A section of Kuparuk sand was encountered between 11655' and 11808' that was not in the ddlling prognosis. Fair oil shows were present. A detailed show report on this interval is included as Show Report #2. Note that continuous trace shows were encountered in the interval 9495' tO 12915'. These trace shows are due in part to the presence of "BaroTror' mud additive which produces a light yellow to dull gold cut fluorescence. This section was drilled to 12915' where 7" casing was set and cemented in the lower Kingak formation. The bottom hole section consisted of shale, sandstone, conglomerate and limestone. The top of the Sag River sandstone was encountered at 12955' and continued to 13015'. Note the gas values from 12960' to 12978' and from 12945' to 13015'. No oil was observed in the cuttings samples, however a trace of oil was on the surface of the mud. A detailed show report on this interval is included as Show Report #3. Immediately following the Sag River sand the Shublik formation was encountered from 13015' to 13065'. It consisted of interbedded shales and limestone. The top of the Ivishak formation was encountered at 13065'. It consisted mostly of conglomerate with minor shale. Trace oil shows were present in the section. A detailed show report on this interval is included as Show Report #4. Total depth was 13282' in the Ivishak formation. FORMATION LITHOLOGY SUMMARY 115' SAND = WHITE TO YELLOWISH GRAY TO VERY LIGHT GRAY; DARK GRAYISH BLACK; CLAST SIZE RANGES FROM UPPER MEDIUM TO COARSE TO OCCASIONALLY VERY COARSE; SUBROUNDED TO SUBANGULAR; MODERATE SPHERICITY; POOR TO MODERATE SORTING; POLISHED TO PI'FI'ED TEXTURE; UNCONSOLIDATED; DOMINANTLY GRAIN SUPPORTED; NON TO VERY WEAK SILICEOUS CEMENT; NO VISIBLE MATRIX MATERIAL; COMPOSED OF 50% QUARTZ, 30% CHERT, 20% DARK GRAY TO BLACK IGNEOUS AND METAMORPHIC LITHICS (ARGILLITE), OCCASIONAL FELDSPAR AND VARIOUS LITHIC FRAGMENTS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 200' SAND = VERY LIGHT GRAY, TRANSLUCENT, DARK GREENISH GRAY TO BROWNISH BLACK, OCCASIONALLY LIGHT BROWN; CLAST SIZE RANGES FROM UPPER MEDIUM TO VERY COARSE; SUBROUNDED TO SUBANGULAR TO ANGULAR; OCCASIONAL PLATY FRAGMENTS; MODERATE SPHERICITY; MODERATE SORTING; LOW SURFACE ABRASION; POLISHED TO FROSTY TEXTURE; NO VISIBLE MATRIX MATERIAL; UNCONSOLIDATED; DOMINANT GRAIN SUPPORT; 40% OF QUARTZ; 30% CHERT; 8,0% OF DARK GRAY TO BROWNISH GRAY METAMORPHICS; GOOD ESTIMATED POROSITY AND PERMEABILITY; NO OIL INDICATORS. 275' SAND "" LIGHT GRAY, TRANSLUCENT, DARK GRAY TO DARK GREENISH GRAY; CLAST SIZE RANGES FROM LOWER COARSE TO MEDIUM COARSE; SUBROUNDED TO SUBANGULAR, OCCASIONAL ANGULAR AND BIT IMPACTED FRAGMENTS; DOMINANT POLISHED TO FROSTY TEXTURE; VERY UNCONSOLIDATED WITH DOMINANT GRAIN SUPPORT; COMPOSED 20-30% OF QUARTZ; 10-20% OF CHERT; 50-60% OF DARK GRAY TO BLUISH GRAY METAMORPHICS, FELDSPAR AND VARIOUS LITHIC FRAGMENTS; GOOD ESTIMATED VISIBLE POROSITY AND PERMEABILITY, NO OIL INDICATORS. 340' SAND - MEDIUM DARK GRAY TO DARK GRAY; OCCASIONALLY TRANSLUCENT; CLAST SIZE RANGES FROM MEDIUM COARSE TO COARSE, OCCASIONALLY VERY COARSE; LOW TO VERY LOW SURFACE ABRASION; SUBANGULAR TO SUBROUNDED, OCCASIONALLY ANGULAR WITH BIT-GENERATED TEXTURES; VERY UNCONSOLIDATED; MODERATE SORTING; MODERATE SPHERICITY; DOMINANT GRAIN SUPPORT; NO VISIBLE MATRIX MATERIAL; PREDOMINANT DARK GRAY TO BLUISH GRAY METAMORPHICS WITH DECREASING AMOUNTS OF QUARTZ AND CHERT (BOTH LESS THAN 20%); GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 420' CONGLOMERATE = LIGHT GRAY TO BLACK, CLEAR, TRANSLUCENT WHITE, OCCASIONALLY DARK RED; CLASTS RANGE FROM GRANULE TO PEBBLE SIZE; POORLY SORTED; ANGULAR TO WELL ROUNDED; ANGULAR FRACTION APPEARS TO BE BIT SHEARED; 70% IGNEOUS/METAMORPHIC LITHICS, 30070 QUARTZ, TRACE MICROCRYSTALLINE PYRITE CLUSTERS; SCATTERED LIGNITE; SCATTERED WOOD FRAGMENTS; NON CALCAREOUS; NO EVIDENCE OF MATRIX; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 480' CONGLOMERATE = LIGHT TO DARK GRAY TO BLACK: TRANSLUCENT WHITE, CLEAR, DARK RED; GRAINS RANGE FROM GRANULE TO PEBBLE SIZE; POORLY SORTED; ANGULAR TO WELL ROUNDED; DOMINANT SUBROUND TO WELL ROUNDED; ANGULAR FRACTION IS PROBABLY DUE TO BIT SHEARING; 70% IGNEOUS/MAFIC LITHICS, ,30% QUARTZ, SCATI'ERED PYRITE, SCATTERED LIGNITE AND WOOD FRAGMENTS; NO EVIDENCE OF CEMENTATION OR MATRIX; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY. ,540' SAND = LIGHT TO DARK GRAY, BLACK, OCCASIONALLY DARK BROWN, CLEAR, TRANSLUCENT WHITE; GRAINS RANGE FROM FINE TO VERY COARSE, DOMINANT MEDIUM TO COARSE; POORLY SORTED; ANGULAR TO ROUND; 70% IGNEOUS/METAMORPHICS LITHICS, 80% QUARTZ; SCATTERED MICROCRYSTALLINE PYRITE CLUSTERS; SCATTERED TO COMMON LIGNITE; RARE WOOD FRAGMENTS; TOTALLY UNCONSOLIDATED, NO EVIDENCE OF CEMENTATION OR MATRIX MATERIAL; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 600' CONGLOMERATE = MEDIUM TO DARK GRAY, BLACK, TRANSLUCENT WHITE, OCCASIONALLY DARK GREEN, OCCASIONALLY DARK RED; GRAINS RANGE FROM GRANULES TO PEBBLES; SUBROUND TO WELL ROUNDED; POORLY SORTED; COMMON TO ABUNDANT ANGULAR BIT SHEARED FRAGMENTS; 70% MAFIC/METAMORPHIC, 8,0% QUARTZ; SCATTERED TO COMMON WOOD FRAGMENTS; RARE TO SCATI'ERED CLUSTERS MICROCRYSTALLINE PYRITE; RARE PYRITE CRUST ON GRAINS; LOCALLY COMMON LIGNITE; NON CALCAREOUS; NO EVIDENCE OF MATRIX OR CEMENT; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 670' LIGNITE = DARK BROWN TO BLACK; FIRM; CRUMBLY TO BRITTLE; ANGULAR TO BLOCKY CUTTINGS; SCATTERED WOOD LAMINATIONS; DULL TO SLIGHTLY SHINY LUSTER; SMOOTH TO SLIGHTLY GRAINY TEXTURE. 700' SAND = BLACK, LIGHT TO DARK GRAY, TRANSLUCENT WHITE, CLEAR, OCCASIONALLY DARK RED; FINE TO VERY COARSE; ANGULAR TO WELL ROUNDED; POORLY SORTED; 70% IGNEOUS/METAMORPHIC LITHICS, $0% QUARTZ; LOCALLY COMMON LIGNITE; SCATTERED TO COMMON WOOD FRAGMENTS; OCCASIONALLY SANDSTONE APPEARING AS ROUNDED WASHED IN CONSTITUENTS; NON CALCAREOUS; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 760' LIGNITE = DARK BROWN TO BLACK; FIRM; CRUMBLY TO BRITTLE; DULL TO SLIGHTLY RESINOUS LUSTER; SMOOTH TEXTURE; LOCALLY COMMON WOODY STREAKS; SMALL IRREGULAR, TABULAR AND BLOCKY CUTTINGS. 785' SAND = DARK GRAY TO BLACK, TRANSLUCENT WHITE, OCCASIONALLY DARK RED, OCCASIONALLY DARK GREEN; FINE LOWER TO VERY COARSE UPPER, DOMINANT MEDIUM TO COARSE GRAIN; POORLY SORTED; SUBANGULAR TO WELL ROUNDED, DOMINANT SUBANGULAR TO SUBROUNDED; 70% IGNEOUS/METAMORPHICS LITHICS, 30% QUARTZ; COMMON CHERT, LOCALLY COMMON LIGNITE; SCATTERED GRAINS WITH PYRITE ENCRUSTATIONS; SCATTERED CLUSTERS MICROCRYSTALLINE PYRITE; LOCALLY COMMON WOOD FRAGMENTS; TRACE CLAY MATRIX; NON CALCAREOUS; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 850' CONGLOMERATE = BLACK, MEDIUM TO DARK GRAY; TRANSLUCENT WHITE, OCCASIONALLY DARK GREEN; GRAINS RANGE FROM GRANULE TO PEBBLE SIZE; POORLY SORTED; SUBROUND TO ROUNDED, COMMON ANGULAR BIT SHEARED GRAINS; 60% IGNEOUS AND METAMORPHICS LITHICS, 20% QUARTZ, 10% CHERT; LOCALLY COMMON WOOD AND LIGNITE; SCATTERED PYRITE; OCCASIONALLY GRAINS WITH PYRITE CRUST; NO EVIDENCE OF CEMENT OR MATRIX; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS 910' SAND = BLACK, MEDIUM TO DARK GRAY, TRANSLUCENT WHITE, OCCASIONALLY DARK GREEN, OCCASIONALLY DARK RED; CLASTS RANGE FROM FINE TO VERY COARSE; DOMINANT MEDIUM; ANGULAR TO WELL ROUNDED; DOMINANT SUBANGULAR TO SUBROUND; POORLY SORTED; 80% IGNEOUS/METAMORPHICS LITHICS, 20% QUARTZ; RARE JASPER; RARE CHERT; SCATTERED FREE PYRITE CLUSTERS; NON CALCAREOUS; NO EVIDENCE OF MATRIX OR CEMENT; NO OIL INDICATORS. 960' SAND = LIGHT BROWNISH GRAY, DARK GRAY TO DUSKY BROWN, TRANSLUCENT OCCASIONALLY CREAM WHITE; MEDIUM TO UPPER COARSE TO GRANULES; SUBANGULAR TO SUBROUNDED OCCASIONALLY ANGULAR; OCCASIONALLY PLATY BIT-IMPACTED TRANSLUCENT CHUNKS; FROSTY TO POLISHED TEXTURE; OCCASIONALLY CARBONACEOUS SPECKS; SLIGHTLY AMOUNT OF SILICA AND CLAY MATRIX MATERIAL; TRACE FRAGMENTS OF WOOD (VERY LOW GRADE LIGNITE); PREDOMINANT METAMORPHIC CLASTS; QUARTZ ONLY 10--20% WITH MINOR AMOUNT OF CHERT, FELDSPAR; GOOD TO VERY GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1030' COAL = LIGHT BROWN TO GRAYISH BROWN OCCASIONALLY MEDIUM DARK BROWN; EXTREMELY LOW GRADE OF LIGNITE WITH ABUNDANT WOOD FRAGMENTS; SMALL IRREGULAR, TABULAR AND BLOCKY CUTTINGS; MEDIUM FIRM; DULL TO VERY SLIGHTLY RESINOUS LUSTER; BRITTLE. 1070' CONGLOMERATE = BLACK, MEDIUM TO GRAYISH BROWN OCCASIONALLY TRANSLUCENT WHITE; CLASTS RANGE FROM COARSE TO GRANULES OCCASIONALLY PEBBLES; POOR TO MODERATE SORTING; SUBROUNDED TO ROUNDED OCCASIONALLY ANGULAR PLATY (BIT IMPACT); 70.80% METAMORPHIC LITHICS; OCCASIONALLY TO COMMON GRAINS WITH PYRITE CRUST; NO TO LITTLE MATRIX MATERIAL; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1120' SAND = LIGHT TO DARK GRAY TO DARK GREEN, TRANSLUCENT; CLAST SIZES RANGE FROM UPPER MEDIUM TO VERY COARSE TO GRANULES OCCASIONALLY PEBBLES; SUBANGULAR TO SUBROUNDED OCCASIONALLY WELL ROUNDED PEBBLES; COMPOSED MAINLY OF METAMORPHICS LITHICS; 10-20% OF QUARTZ, RARE CHERT; PYRITE CRUST; NO TO LITTLE MATRIX MATERIAL; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1170' CONGLOMERATE/SAND : MEDIUM TO DARK GRAY, TRANSLUCENT; POLISHED OCCASIONALLY GRITTY TEXTURE; CLASTS SiZE RANGES FROM COARSE TO VERY COARSE OCCASIONALLY GRANULES; SUBROUNDED TO ROUNDED OCCASIONALLY WELL ROUNDED; 80% OF METAMORPHICS LITHICS, 20% QUARTZ RARE CHERT; OCCASIONALLY WOODY FRAGMENTS (LOW GRADE LIGNITE); COMMON PYRITE CRUST; OCCASIONALLY CARBONACEOUS SPECKS; NO TO LITTLE MATRIX MATERIAL; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 1230' SAND = LIGHT GRAY TO DARK GRAY OCCASIONALLY GREENISH GRAY, TRANSLUCENT; CLAST SIZE RANGES FROM COARSE TO VERY COARSE OCCASIONALLY GRANULES AND PEBBLES; MOD TO POOR SORTING; SUBROUNDED TO ROUNDED OCCASIONALLY WELL ROUNDED; DOMINANT POLISHED TEXTURE; NO VISIBLE MATRIX MATERIAL; COMPOSED MAINLY OF METAMORPHIC LITHICS (80~) AND 20~ OF QUARTZ; GRAIN-SUPPORTED MATRIX; GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1280' CONGLOMERATE/SAND = MEDIUM GRAY TO DARK GRAY, BROWNISH GRAY TO GREEN GRAY; CLASTS RANGE FROM MEDIUM TO UPPER COARSE WITH COMMON GRANULES OCCASIONALLY PEBBLES; UPPER CLASTS TEND TO BE MORE ROUNDED; SUBANGULAR TO SUBROUNDED; MODERATE TO POOR SORTING; UNCONSOLIDATED WITH NO VISIBLE MATRIX MATERIAL; PITTED TO POLISHED TEXTURE; NO CEMENT; OCCASIONALLY PYRITE ENCRUSTATION; COMPOSED MAINLY OF METAMORPHIC LITHICS (>70%), AND TRANSLUCENT QUARTZ (20-;30~), OCCASIONALLY SHELL FRAGMENTS; VERY GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1370' SAND = MEDIUM GRAY TO MEDIUM BROWNISH GRAY, OLIVE GRAY; CLASTS RANGE FROM FINE GRAINED UPPER TO MEDIUM GRAINED UPPER WITHIN LOCALLY COMMON CONGLOMERATIC ZONES WHICH HAVE BIT BROKEN PEBBLES AND GRANULES; COMMON SUBANGULAR TO ANGULAR; LARGER CLASTS TEND TOWARD SUBROUNDING; MOD-POOR SORTING; UNCONSOLIDATED WITH CLAYEY MATRIX, LOCALLY SHELLS AND WOODY FRAGMENTS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1420' CONGLOMERATE: MEDIUM GRAY TO MEDIUM BROWNISH GRAY TO BROWNISH OLIVE GRAY; CLASTS RANGE FROM FINE GRAINED LOWER TO SCATTERED BIT BROKEN GRANULES, AVERAGE MEDIUM GROUND LOWER; SUBANGULAR TO ANGULAR WITH LARGER CLASTS TENDING TOWARD BETTER ROUNDING; PR OVERALL SPHERICITY; POORLY TO MOD SORTED; UNCONSOLIDATED WITH LOCALLY PERVASIVE CLAYEY MATRIX; GRAIN SUPPORT; COMPOSED APPROXIMATELY OF 25% TRANSLUCENT TO MILKY QUARTZ AND 75% METAMORPHICS LITHICS, FELDSPAR AND OCCASIONALLY CHERT; LOCALLY COMMON WOODY FRAGMENTS AND OCCASIONALLY SHELL FRAGMENTS; COMMON PYRITE CRUST AND OCCASIONALLY FRAGMENTS; GOOD TO VERY GOOD VISUAL ESTIMATED POROSITY AND PERMEABILITY; NO OIL INDICATORS. 1520' SAND = MEDIUM TO DARK GRAY, BLACK, DARK BROWN, OCCASIONALLY DARK GREEN; FINE TO VERY COARSE; DOMINANT FINE TO MEDIUM GRAIN; ANGULAR TO WELL ROUNDED, DOMINANT SUBANGULAR TO SUBROUND~ POORLY SORTED; 70% IGNEOUS/METAMORPHICS. LITHICS, 30% QUARTZ, SCATTERED CHERT, RARE PYRITE, LOCALLY COMMON LIGNITE; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NON TO SLIGHTLY CALCAREOUS; NO OIL INDICATORS. 1570' LIGNITE - BLACK TO DUSKY BROWN; FIRM; BRITTLE; DULL TO SLIGHTLY SHINY LUSTER; SMOOTH TO SLIGHTLY GRAINY TEXTURE; LOCALLY ARGILLACEOUS; SCA'I-I'ERED WOODY LAMINATIONS. 1590' CONGLOMERATE = BLACK, DUSKY BROWN, MEDIUM TO DARK GRAY, TRANSLUCENT WHITE; CLASTS RANGE FROM GRANULE TO PEBBLE SIZE; ANGULAR TO WELL ROUNDED, DOMINANT SUBROUND TO WELL ROUNDED; POORLY SORTED; 70% IGNEOUS/METAMORPHICS LITHICS, 30% QUARTZ; RARE CHERT; SCATTERED CLUSTERS MICROCRYSTALLINE PYRITE; LOCALLY COMMON LIGNITE; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 1655' SAND -- BLACK, MEDIUM TO DARK GRAY, TRANSLUCENT WHITE, DUSKY BROWN, OCCASIONALLY DARK GREEN, OCCASIONALLY DARK RED; CLASTS RANGE FROM FINE LOWER TO VERY COARSE UPPER, DOMINANT MEDIUM TO COARSE; ANGULAR TO WELL ROUNDED, DOMINANT SUBANGULAR TO ROUNDED; POORLY SORTED~ 60~ IGNEOUS/ METAMORPHICS LITHICS~ 30~ QUARTZ, 10~ CHERT~ SCATTERED GRAINS WITH PYRITE ENCRUSTATIONS; SCAI-rERED LIGNITE; OCCASIONALLY WOOD FRAGMENTS; NO EVIDENCE OF MATRIX OR CEMENTATION; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1730' CONGLOMERATE = BLACK, MEDIUM TO DARK GRAY, TRANSLUCENT WHITE, DARK RED; GRAINS RANGE FROM GRANULE TO PEBBLES WITH SOME APPARENT COBBLE FRAGMENTS; SUBROUND TO WELL ROUNDED, COMMON ANGULAR BIT SHEARED FRAGMENTS; POORLY SORTED; 70% IGNEOUS/METAMORPHICS LITHICS, $0~ QUARTZ, SCAI-[ERED CHERT, SCAI-rERED LIGNITE, RARE CLUSTERS OF MICROFINE PYRITE; NON CALCAREOUS; NO EVIDENCE OF MATRIX~ NO EVIDENCE OF CEMENT; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1790' SAND = BLACK, DUSKY BROWN, MEDIUM TO DARK GRAY; CLASTS RANGE FROM FINE LOWER TO VERY COARSE UPPER, DOMINANT MEDIUM TO COARSE GRAIN; POORLY SORTED; ANGULAR TO WELL ROUNDED, DOMINANT SUBANGULAR TO SUBROUND; 70~ IGNEOUS/METAMORPHICS LITHICS, $C~ QUARTZ, SCATTERED CHERT, OCCASIONALLY TO COMMON LIGNITE; NO EVIDENCE OF MATRIX OR CEMENT; NO OIL INDICATORS. 1835' SAND = MEDIUM DARK GRAY TO DARK GRAY TO BROWNISH BLACK, TRANSLUCENT; CLASTS RANGE FROM UPPER FINE TO VERY COARSE OCCASIONALLY GRANULES; POORLY TO MOD SORTED; SUBANGULAR TO SUBROUNDED OCCASIONALLY WELL ROUNDED; LARGER CLASTS TEND TO BE BETTER ROUNDED AND POLISHED; 70-75% OF METAMORPHICS LITHICS, 25-$C~ OF QUARTZ, RARE CHERT; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1890' SAND : MEDIUM DARK GRAY TO DARK GRAY TO BLACK; TRANSLUCENT; CLASTS RANGE FROM UPPER FINE TO UPPER MEDIUM TO VERY COARSE, OCCASIONALLY GRANULES AND PEBBLES, UPPER CLASTS APPEAR TO BE MORE ROUNDED AND POLISHED; TEXTURE OVERALL POLISHED OCCASIONALLY CHIPPED; LOW TO MOD ABRASION; LOW TO MOD SPHERICITY~ OCCASIONALLY PYRITE CRUST ON GRAINS; COMPOSED OF METAMORPHICS LITHIC (70~), $C~ QUARTZ; GOOD VISUAL ESTIMATED POROSITY AND PERMEABILITY, NO OIL INDICATORS. 1950' CONGLOMERATE/SAND = MEDIUM GRAY TO DARK GRAY TO BROWNISH BLACK, TRANSLUCENT~ CLASTS SIZE RANGES FROM UPPER MEDIUM TO COARSE OCCASIONALLY VERY COARSE; OCCASIONALLY PYRITE SPECKS OR CRUST ON GRAINS; LOCALLY WOODY FRAGMENTS OF LOW GRAINED LIGNITE; POOR SORTING[ LOCALLY CLAYEY MATRIX; LOW TO MODERATE ABRASION; LOW TO MOD SPHERICITY; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY~ NO OIL INDICATORS. 2000' SAND = LIGHT GRAY TO MEDIUM GRAY TO DARK GRAY, OCCASIONALLY LIGHT BROWNISH GRAY; CLAST SIZE RANGES FROM UPPER FINE TO MEDIUM COARSE OCCASIONALLY VERY COARSE; SUBANGULAR TO ANGULAR; LOW SPHERICITY; BIT-BROKEN GRANULES OF QUARTZ AND CONGLOMERATE; SLIGHTLY ABRASIVE TEXTURE OCCASIONALLY POLISHED WITH THE INCREASED CLAST SIZE; MODERATE SORTING; LOCALLY CLAY MATRIX WITH LUMPY TEXTURE; COMPOSED OF APPROXIMATELY 30% OF QUARTZ, 10% OF CHERT AND 60% OF METAMORPHICS LITHICS; OCCASIONALLY WOODY FRAGMENTS OF LOW GRADE LIGNITE; TRACE GREENSTONE; COMMON PYRITE SPECKS AND CRUST; GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 2080' SAND = LIGHT TO MEDIUM TO DARK GRAY OCCASIONALLY BROWNISH HUES, TRANSLUCENT; CLAST SIZE RANGES FROM UPPER FINE TO COARSE OCCASIONALLY BIT- BROKEN GRANULES AND PEBBLES; SUBROUNDED TO ROUNDED; NO TO VERY LITTLE VISIBLE MATRIX MATERIAL; COMMON PYRITE SPECKS AND CRUST ON GRAINS; COMMON WOODY FRAGMENTS OF LIGNITE IN SAMPLE; GOOD ESTIMATED POROSITY AND PERMEABILITY; NO OIL INDICATORS. 2135' CONGLOMERATE/SAND = LIGHT GRAY, LIGHT BROWNISH TO BROWNISH GRAY; CLAST SIZE RANGES FROM UPPER FINE TO MEDIUM COARSE TO VERY COARSE OCCASIONALLY GRANULES; SUBANGULAR TO SUBROUNDED OCCASIONALLY ROUNDED (WITH A LARGER CLAST); MODERATE SPHERICITY; MODERATE SORTING; POLISHED TO PITTED TO CHIPPED TEXTURE; OCCASIONALLY BIT IMPACTED FRAGMENTS IN GRANULES; VERY WEAK SILICEOUS CEMENT; NO VISUAL MATRIX MATERIALS; DOMINANT GRAIN SUPPORT; COMPOSED OF 20% QUARTZ, 10% CHERT; 70% VARIOUS METAMORPHICS LITHICS; LOCALLY TO COMMON FRAGMENTS AND CRUST ON GRAINS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 2210' COAL = YELLOW BROWN TO DUSKY BROWN TO BLACK; EXTREMELY LOW GRADE OF LIGNITE; DULL TO RESINOUS LUSTER; FIRM; BRII'rLE; SCAI-rERED WOODY LAMINATIONS; EARTHY TEXTURE; SMALL IRREGULAR FRACTURE HABIT. 2250' SAND: LIGHT GRAY TO MEDIUM GRAY TO BROWNISH GRAY; CLASTS RANGE FROM UPPER FINE TO UPPER COARSE OCCASIONALLY VERY COARSE AND GRANULES; GRANULES WITH INCREASED ROUNDNESS AND OFTEN IMPACTED BY THE BIT; LOW TO MODERATE SPHERICITY; SPECKS AND ENCRUSTATIONS OF PYRITE ON GRAINS; LOCALLY FRAGMENTS OF GREENSTONE; NO EVIDENCE OF MATRIX MATERIAL; MOSTLY METAMORPHICS LITHICS WITH GOOD POROSITY AND PERMEABILITY, NO OIL INDICATORS. 2;310' CONGLOMERATE/SAND - MEDIUM GRAY TO DARK GRAY TO BLACK, TRANSLUCENT; CLASTS SIZE RANGES FROM UPPER FINE TO UPPER COARSE OCCASIONALLY VERY. COARSE AND BIT-BROKEN PEBBLES AND GRANULES; SUBANGULAR TO SUBROUNDED; OCCASIONALLY WOODY FRAGMENTS; OCCASIONALLY TO COMMON PYRITE CRUST OR/AND SPECKS ON GRAINS; SLIGHTLY HYDROPHILIC CLAY MATRIX COMPOSED OF 30% QUARTZ, 40% METAMORPHICS LITHICS AND 30% OF CHERT; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS ARE PRESENT. 2;370' COAL-- BROWNISH GRAY TO BROWNISH BLACK; LOW GRADE OF LIGNITE; FIRM; BRITTLE; IRREGULAR FRACTURE HABIT; DULL TO RESINOUS LUSTER; SCATTERED WOODY LAMINATIONS; EARTHY TEXTURE. 2400' SAND = LIGHT GRAY TO MEDIUM GRAY TO BROWNISH BLACK; CLAST SIZE RANGES FROM MEDIUM FINE TO VERY COARSE TO OCCASIONALLY GRANULES AND PEBBLES; SUBROUNDED TO SUBANGULAR; POORLY SORTED; MODERATE SPHERICITY; PI'I-FED TO CHIPPED TEXTURE OCCASIONALLY POLISHED WITH THE LARGER CLAST; OCCASIONALLY LIGHT BROWNISH WOODY FRAGMENTS; OCCASIONALLY PYRITE CRUST ON GRAINS; LOCALLY CLAYEY MATRIX, GRAIN SUPPORTED; COMPOSED MOSTLY 20~ QUARTZ AND 80~ METAMORPHICS IGNEOUS LITHICS. 2460' CONGLOMERATE/SAND : LIGHT GRAY TO DARK GRAY WITH BROWNISH HUES; CLAST SIZE RANGES FROM UPPER MEDIUM TO VERY COARSE TO COMMON GRANULES, PEBBLES AND COBBLES; COMMON BIT-IMPACTED GRAINS; PYRITE SPECKS OCCASIONALLY CRUSTED GRAINS THROUGHOUT THE SAMPLE; LOCALLY CLAYEY MATRIX; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 2500' SAND - LIGHT GRAY TO MEDIUM GRAY WITH BROWN HUES; CLAST SIZE RANGES FROM MEDIUM UPPER TO VERY COARSE; SUBROUNDED TO SUBANGULAR; MODERATE SPHERICITY; POOR TO MODERATELY SORTED; PITTED TO CHIPPED TEXTURE; WEAK SILICEOUS CEMENT; DOMINANT GRAIN SUPPORTED; LOCALLY CLAYEY MATRIX; TRACE GREENSTONE; PYRITE SPECKS AND CRUST; COMPOSED OF 8C~ OF METAMORPHICS LITHICS, 20~ QUARTZ, NO OIL INDICATORS. 2,550' COAL = BLACK TO BROWNISH BLACK; LOW GRADE LIGNITE; DULL TO RESINOUS LUSTER; FIRM TO SOFT; BRITTLE; ROUGH TO EARTHY TEXTURE; SCATTERED WOODY LAMINATIONS; REGULAR FRACTURE HABIT. 2,580' SAND -- LIGHT GRAY TO DARK GRAY; CLAST SIZE HAS A WIDE RANGE: FROM UPPER FINE TO VERY COARSE TO OCCASIONALLY GRANULES AND BIT-IMPACTED PEBBLES; LOCALLY CLAY MATRIX; DOMINANT GRAIN SUPPORTED; GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 2620' CONGLOMERATE/SAND = LIGHT GRAY TO MEDIUM GRAY OCCASIONALLY DARK GRAY; CLAST SIZE RANGES FROM LOWER MEDIUM TO VERY. COARSE OCCASIONALLY GRANULES; CHIPPED TO PITTED TEXTURE; LOCALLY CLAY MATRIX; DOMINANT GRAIN SUPPORTED; LOCALLY PYRITE FRAGMENTS AND CRUST ON GRAINS[ COMPOSED MAINLY OF METAMORPHICS LITHICS WITH 20-25% QUARTZ AND 5-10~ CHERT; GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 2670' SAND = VERY LIGHT GRAY TO MEDIUM GRAY; CLAST SIZE RANGES FROM LOWER MEDIUM TO UPPER COARSE; LOCALLY TO COMMON BIT-IMPACTED GRANULES AND PEBBLES; SUBANGULAR TO SUBROUNDED; PITTED TO CHIPPED TEXTURE OCCASIONALLY POLISHED; LOCALLY CLAY MATRIX; GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 2785' CONGLOMERATE = MEDIUM TO DARK GRAY, BLACK, TRANSLUCENT WHITE, DARK GREEN, DARK RED, CLEAR; RANGE FROM GRANULE TO COBBLE FRAGMENTS; DOMINANT GRANULE TO PEBBLE; POORLY SORTED; ANGULAR TO WELL ROUNDED, ANGULAR FRACTURES IS DUE TO BIT SHEAR; 70~ IGNEOUS/METAMORPHICS LITHICS, $0~ QUARTZ; SCATTERED PYRITE, SCATTERED LIGNITE; SCATTERED LUMPS CLAY MATRIX MATERIAL; NON CALCAREOUS; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 278,5' COAL = BLACK .TO DUSKY BROWN; FIRM; CRUMBLY TO BRITTLE; DULL TO SLIGHTLY RESINOUS LUSTER; SMOOTH TEXTURE; LOCALLY ARGILLACEOUS; OCCASIONALLY WOODY STREAKS; SMALL IRREGULAR, TABULAR AND BLOCKY CUTTINGS; OCCASIONALLY VERY THIN CLAYSTONE LAMINATIONS. 2820' SAND : MEDIUM TO DARK GRAY, BLACK, TRANSLUCENT WHITE, CLEAR, OCCASIONALLY DARK GREEN, OCCASIONALLY DARK RED; GRAINS RANGE FROM FINE LOWER TO VERY COARSE UPPER, DOMINANT MEDIUM TO COARSE; ANGULAR TO WELL ROUNDED, DOMINANT SUBROUND TO ROUNDED; MOST ANGULAR FRAGMENTS APPEAR TO BE BIT SHEARED; POORLY SORTED; 70~ IGNEOUS/METAMORPHICS LITHICS, 3C~ QUARTZ, OCCASIONALLY CHERT, RARE PYRITE CLUSTERS; SCATTERED LIGNITE. 2870' SAND -- MEDIUM TO DARK GRAY, BLACK, DUSKY BROWN, DARK GREEN, DARK RED~ CLASTS RANGE FROM FINE LOWER TO COARSE UPPER; DOMINANT MEDIUM TO COARSE RANGE; ANGULAR TO WELL ROUND, DOMINANT SUBANGULAR TO SUBROUND; POORLY SORTED; 60~ IGNEOUS/METAMORPHICS LITHICS; $C~ QUARTZ, 1C~ CHERT, SCATTERED LIGNITE; OCCASIONALLY GRAINS WITH THIN PYRITE CRUST; NON CALCAREOUS~ SCATTERED TO COMMON CLAY MATRIX MATERIAL FREE IN SAMPLE; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL. 2930' CONGLOMERATE = MEDIUM TO DARK GRAY, BLACK, TRANSLUCENT WHITE, CLEAR, DARK GREEN, OCCASIONALLY DARK RED; GRAINS RANGE FROM GRANULE TO COBBLE FRAGMENTS; ANGULAR TO WELL ROUNDED, DOMINANT SUBROUND TO WELL ROUNDED, ANGULAR FRACTURES IS PROBABLY DUE TO BIT SHEAR; POORLY SORTED; 70% IGNEOUS/METAMORPHICS LITHICS; $C~ QUARTZ; MINOR CHERT AND LIGNITE, OCCASIONALLY WOOD FRAGMENTS; OCCASIONALLY GRAINS WITH THIN PYRITE CRUST; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL. 2990' CLAYSTONE = LIGHT TO MEDIUM GRAY WITH SLIGHTLY BROWNISH HUES; SOFT TO SLIGHTLY FIRM; CRUMBLY TO SLIGHTLY BRITTLE; SMALL IRREGULAR, OCCASIONALLY SUBBLOCKY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO GRITTY TEXTURE~ NON TO SLIGHTLY CALCAREOUS; LOCALLY SILTY; LOCALLY COMMON FINE TO MEDIUM SAND GRAINS; SCATTERED CARBONACEOUS SPECKS~ STRUCTURELESS; NO OIL. 3030' SAND = MEDIUM TO DARK GRAY, BLACK, DUSKY BROWN, OCCASIONALLY MEDIUM TO DARK GREENISH GRAY, RARELY DARK RED~ CLASTS RANGE FROM FINE LOWER TO VERY COARSE UPPER, DOMINANT MEDIUM TO COARSE; POORLY SORTED; ANGULAR TO WELL ROUNDED, DOMINANT SUBROUND TO ROUNDED; COMMON BIT SHEARED GRAINS WITH ANGULAR SURFS; COMMON LIGNITE; SCATTERED PYRITE CLUSTERS; OCCASIONALLY GRAINS WITH THIN CRUST OF PYRITE ON SURFACES; NON TO SLIGHTLY CALCAREOUS; SCATTERED TO COMMON CLAY MATRIX MATERIAL FREE IN SAMPLE; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 3100' CLAY = LIGHT TO MEDIUM GRAY WITH SLIGHTLY BROWNISH HUES; VERY SOFT TO SOFT; MUSHY, THICK, STICKY; SMOOTH TO MOD GRITTY; MOD TO VERY SOLUBLE; SLIGHTLY EXPANSIVE WITH HYDRATION; NON TO SLIGHTLY CALCAREOUS; OCCURS AS AMORPHOUS LUMPS; SCATTERED TO COMMON FINE TO COARSE SAND GRAINS EMBEDDED IN LUMPS, NO OIL INDICATORS. 3100' C:LAYSTONE - LIGHT TO MEDIUM BROWNISH GRAY; SOFT TO OCCASIONALLY SLIGHTLY FIRM; CRUMBLY TO OCCASIONALLY SLIGHTLY BRITTLE; SMALL IRREGULAR, SUBBLOCKY AND OCCASIONALLY PLATY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO MOD GRIlffY TEXTURE; NON TO SLIGHTLY CALCAREOUS; LOCALLY SILTY; OCCASIONALLY TO COMMON FINE SAND GRAINS; SCATTERED TO COMMON CARBONACEOUS SPECKS; STRUCTURELESS; NO OIL. 3200' SAND = DARK TO MEDIUM GRAY, BLACK, DUSKY BROWN, TRANSLUCENT WHITE, CLEAR, OCCASIONALLY RED, OCCASIONALLY MEDIUM TO DARK GREEN, OCCASIONALLY DARK REDDISH ORANGE; VERY FINE UPPER TO VERY COARSE UPPER, DOMINANT MEDIUM TO COARSE; POORLY SORTED; ANGULAR TO WELL ROUNDED, DOMINANT SUBANGULAR TO SUBROUND; COMMON PITTED GRAINS; COMMON BIT SHEARED GRAINS; SCATTERED TO COMMON PYRITE CLUSTERS; SCATTERED TO COMMON GRAINS ENCRUSTED WITH PYRITE; NO OIL. 3260' CONGLOMERATE = MEDIUM TO DARK GRAY, BLACK, TRANSLUCENT WHITE, CLEAR, OCCASIONALLY DARK GREENISH GRAY; CLASTS RANGE FROM GRANULE TO COBBLE FRAGMENTS; ANGULAR TO WELL ROUNDED, DOMINANT SUBROUND TO ROUNDED; POORLY SORTED; COMMON PITTED TEXTURE; MANY GRAINS APPEAR TO BE BIT SHEARED; 60~ METAMORPHICS/IGNEOUS LITHICS, 2C~ QUARTZ, 1C~ CHERT, SCATTERED TO COMMON MICROCRYSTALLINE PYRITE CLUSTERS; LOCALLY COMMON LIGNITE; NON CALCAREOUS; SCATTERED TO COMMON CLAY MATRIX; APPEARS GRAIN SUPPORTED; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 3340' CLAYSTONE: LIGHT TO MEDIUM BROWNISH GRAY; SOFT TO MOD FIRM~ CRUMBLY TO OCCASIONALLY MOD BRITTLE; SMALL IRREGULAR, BLOCKY, OCCASIONALLY PLATY CUTTINGS; DULL LUSTER; SMOOTH TO MODERATELY GRITTY TEXTURE; NON TO SLIGHTLY CALCAREOUS; SILTY IN PART; LOCALLY COMMON FINE SAND GRAINS; SCATTERED CARBONACEOUS SPECKS; OCCASIONALLY VERY FINE MICA; STRUCTURELESS; NO OIL INDICATORS. 3380' SAND: MEDIUM FINE TO UPPER MEDIUM OCCASIONALLY COARSE; TRANSLUCENT TO BLUISH WHITE OCCASIONALLY PINKISH GRAY AND LIGHT GREENISH GRAY; FIRM-HARD; SUBANGULAR TO SUBROUNDED; OCCASIONALLY TO COMMON BIT SHEARED GRAINS; LOCALLY TO COMMON PYRITE SPECKS ON GRAINS~ OCCASIONALLY WOODY FRAGMENTS; NO OIL INDICATORS. 3420' CONGLOMERATE = MEDIUM DARK GRAY TO BROWNISH GRAY TO BLACK; SUBROUNDED TO ROUNDED; CLAST SIZE RANGES FROM UPPER MEDIUM TO VERY COARSE TO COBBLES; LARGER CLASTS APPEAR TO BE MORE ROUNDED; PITTED TEXTURE; POOR TO MODERATELY SORTED; OCCASIONALLY SCATTERED WOODY FRAGMENTS WITH IRREGULAR FRACTURES; NO TO VERY LITTLE VISIBLE MATRIX MATER; DOMINANT GRAIN SUPPORTED; COMPOSED 70~ OF VARIOUS METAMORPHICS LITHICS, 2C~ QUARTZ, 1C~ CHERT; GOOD VISUAL POROSITY AND PERMEABILITY., NO OIL INDICATORS. 3480' CLAYSTONE = LIGHT GRAY TO MEDIUM GRAY OCCASIONALLY BROWNISH GRAY; SOFT TO MOD SOFT; BLOCKY HABIT; LUMPY TO CLUSTERED; ALMOST STRUCTURELESS; NON TO SLIGHTLY CALCAREOUS; OCCASIONALLY SCAlffERED CARBONACEOUS SPECKS; OCCASIONALLY FINE TO VERY FINE MICA; DULL LUSTER; EARTHY TEXTURE. 3520' CONGLOMERATE = LIGHT GRAY TO DARK GRAY TO BROWNISH GRAY TO BLACK; CLAST SIZE RANGES FROM LOWER COARSE TO VERY COARSE TO GRANULES OCCASIONALLY PEBBLES AND COBBLES; POOR SORTING; MODERATE SPHERICITY; PITTED TO CHIPPED TEXTURE; COMMON CLAYEY MATRIX; SLIGHTLY CALCAREOUS CEMENT; LOCALLY TO COMMON SCATI'ERED LIGHT BROWN WOODY FRAGMENTS; OCCASIONALLY PYRITE SPECKS; COMPOSED OF 60% OF METAMORPHICS LITHICS, 20% OF QUARTZ AND 20% OF CHERT; GOOD TO VERY GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY., NO OIL INDICATORS ARE PRESENT. 858,5' SAND = VERY LIGHT GRAY TO LIGHT GREENISH GRAY; MEDIUM COARSE TO UPPER VERY COARSE TOM GRANULES; SUBANGULAR TO SUBROUNDED; LOW TO MODERATE SPHERICITY; MOD SURFACE ABRASION; PITI'ED TO CHIPPED OCCASIONALLY POLISHED TEXTURE; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. $690' CONGLOMERATE = MEDIUM TO DARK GRAY OCCASIONALLY RED BROWN AND GREENISH GRAY; CLASTS SIZE RANGES FROM COARSE TO PEBBLES; SUBROUNDED TO ROUNDED; LARGER CLASTS TEND TO BE MORE ROUNDED; COMMON PYRITE SPECKS ON GRAINS; COMPOSED OF 70% METAMORPHIC LITHICS AND 30% QUARTZ, NO OIL INDICATORS. ;3680' SAND = MEDIUM GRAY TO BROWNISH GRAY TO OLIVE GRAY; CLAST SIZE RANGES FROM FINE TO VERY COARSE; ANGULAR TO SUBANGULAR; LOCALLY CLAYEY MATRIX; DOMINANT GRAIN SUPPORTED; PI'IrED TO CHIPPED TEXTURE OCCASIONALLY POLISHED; LOCALLY PYRITE SPECKS ON GRAINS; LIGNITE FRAGMENTS THROUGHOUT THE SAMPLE; NO OIL INDICATORS. ;3720' CONGLOMERATE = GRAY TO GREENISH GRAY TO OLIVE BLACK OCCASIONALLY RED BROWN; CLAST SIZE RANGES FROM LOWER COARSE TO COBBLES; SUBANGULAR TO SUBROUNDED; LARGER CLASTS COMMONLY IMPACTED BY THE BIT; PITTED TEXTURE; POOR TO MODERATE SORTING; COMMON PYRITE SPECKS ON GRAINS; OCCASIONALLY LIGHT BROWN TO DUSKY BROWN WOODY FRAGMENTS AND LIGNITE; COMPOSED MOSTLY OF METAMORPHICS LITHICS (80~) ADDITIONAL 20% QUARTZ; GOOD VISUAL ESTIMATED POROSITY AND PERMEABILITY; NO OIL INDICATORS ARE PRESENT. $790' SAND = LIGHT GRAY TO BLUISH GRAY TO GREENISH GRAY; CLAST SIZE RANGES FROM LOWER COARSE TO VERY COARSE; SUBANGULAR TO ANGULAR OCCASIONALLY ROUNDED; POOR TO MODERATE SORTING; CHIPPED TEXTURE OCCASIONALLY POLISHED; LARGER CLASTS TEND TO BE MORE ROUNDED; DOMINANT CLAYEY MATRIX; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY., NO OIL INDICATORS. ;3830' COAL = MODERATE BROWN TO BROWNISH BLACK; LOW GRADE OF LIGNITE; DULL TO RESINOUS LUSTER; EARTHY TEXTURE; IRREGULAR FRACTURE HABIT; OCCASIONALLY SCA'FI'ERED WOODY LAMINATIONS; VERY BRITTLE; UPPER SOFT TO FIRM. 3860' SAND -- LIGHT GRAY TO LIGHT GREENISH GRAY TO OCCASIONALLY OLIVE GRAY; SIZE RANGES FROM COARSE TO PEBBLES; MODERATELY TO WELL SORTED; CHIPPED TEXTURE; LARGER GRAINS ARE MORE ROUNDED OFTEN IMPACTED BY THE BIT; COMMON SUBROUNDED TO ROUNDED. 3900' CONGLOMERATE = MEDIUM TO DARK GRAY~ CLASTS SIZE RANGES FROM LOWER COARSE TO PEBBLES OCCASIONALLY COBBLES; MODERATELY SORTED; LOCALLY TO COMMON CLAYEY MATRIX; SUBANGULAR TO SUBROUNDED; LARGER CLAST APPEAR TO BE BETTER ROUNDED AND OFTEN BROKEN BY THE BIT; CHIPPED TO PI'FrED TEXTURE OCCASIONALLY POLISHED {COBBLES); COMPOSED OF 80~ VARIOUS METAMORPHICS LITHICS AND 20~ QUARTZ; MODERATE TO GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS ARE PRESENT. 3960' SAND = TRANSLUCENT, LIGHT GRAY TO MEDIUM GRAY; SIZE RANGES FROM LOWER COARSE TO PEBBLES; SUBANGULAR TO ANGULAR OCCASIONALLY ANGULAR: MODERATE SPHERICITY; MODERATE SURFACE ABRASION; QUARTZ; OCCASIONALLY WOODY FRAGMENTS; MODERATE TO GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY., NO OIL INDICATORS. 4000' CONGLOMERATE = MEDIUM GRAY TO DARK GRAY, OCCASIONALLY MODERATE RED~ CLAST SIZE RANGES FROM UPPER COARSE TO COBBLES; LARGER CLASTS TEND TO BE BETTER ROUNDED; PITTED TO CHIPPED TEXTURE OCCASIONALLY SLIGHTLY POLISHED; SUBANGULAR TO SUBROUNDED; POOR TO MODERATE SORTING; CLAYEY MATRIX-VERY HYDROPHILIC; COMPOSED OF METAMORPHIC VARIOUS LITHICS (7C~), 20~ OF QUARTZ AND 1C~ CHERT; COMMON PYRITE SPECKS ON GRAINS. 4060' CONGLOMERATE = LIGHT GRAY TO MEDIUM GRAY TO DARK GRAY OCCASIONALLY LIGHT BROWNISH AND OLIVE HUES; CLAST SIZE RANGES FROM VERY COARSE TO COBBLES; LARGER CLAST GRAINS ARE COMMON HAVE A BIT-SHEARED TEXTURE; PITTED TO CHIPPED TEXTURE OCCASIONALLY SLIGHTLY POLISHED; SUBANGULAR TO SUBROUNDED OCCASIONALLY ROUNDED; LOCALLY PYRITE VEINS, SPECKS AND CRUST ON GRAINS, ALSO MEDIUM SIZE PYRITE PARTICLES; CLAYEY MATRIX; NO OIL INDICATORS. 4110' CLAYSTONE '- LIGHT TO MEDIUM GRAY TO OCCASIONALLY BROWNISH GRAY; VERY SOFT TO SOFT; ALMOST STRUCTURELESS; LUMPY TO CLUSTERED; DULL TO EARTHY LUSTER; SLIGHTLY TO NON CALCAREOUS; COMMON CARBONACEOUS SPECKS[ THIN TO THICK BEDDING~ AMORPHOUS. 4160' SAND '-' LIGHT GRAY TO MEDIUM GRAY~ SIZE RANGES FROM UPPER FINE TO LOWER VERY. COARSE; SUBANGULAR TO SUBROUNDED; CHIPPED TO PITI'ED TEXTURE; MODERATE SPHERICITY; MODERATE TO ABUNDANT PINKISH CLAYEY MATRIX; VERY WEAK SILICEOUS CEMENT; DOMINANT CLAY SUPPORT WITH SECONDARY GRAIN SUPPORT; 60% IGNEOUS/METAMORPHIC LITHICS, 30~ QUARTZ, 10~ CHERT, SCATTERED CLUSTERS PYRITE~ ESTIMATED POOR TO FAIR VISUAL POROSITY AND PERMEABILITY; NO OIL. 4210' CLAY = LIGHT TO MEDIUM GRAY; VERY SOFT; THICK; PASTY TO RUNNY~ SMOOTH TO MOD GRITTY; STICKY; MOD PLIABLE~ MOD SOLUBLE; SLIGHTLY EXPANSIVE WITH HYDRATION; NON TO SLIGHTLY CALCAREOUS; SCATI'ERED TO COMMON LUMPS WITH COMMON FINE TO COARSE SAND GRAINS EMBEDDED. 4250' SAND = LIGHT TO DARK GRAY, BLACK, TRANSLUCENT WHITE; FINE LOWER TO VERY COARSE UPPER~ DOMINANT MEDIUM TO COARSE; ANGULAR TO WELL ROUNDED, DOMINANT SUBROUND TO ROUND; POORLY SORTED~ 60% IGNEOUS/METAMORPHICS LITHICS, 3C~ QUARTZ, 10~ CHERT, SCATTERED LIGNITE, SCATI'ERED PYRITE CLUSTERS; NON CALCAREOUS; COMMON CLAY MATRIX MATERIAL LOOSE IN SAMPLES; ESTIMATED FAIR VISUAL POROSITY AND PERMEABILITY; NO OIL. 4310' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY; SOFT; MUSHY TO OCCASIONALLY SLIGHTLY CRUMBLY; SMALL IRREGULAR, OCCASIONALLY PLATY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO SLIGHTLY GRAINY TEXTURE; NON CALCAREOUS; LOCALLY SLIGHTLY SILTY; OCCASIONALLY FINE SAND GRAINS; SCAI-[ERED CARBONACEOUS SPECKS; NO STRUCTURE; NO OIL INDICATORS. 4350' CLAY = LIGHT TO MEDIUM BROWNISH GRAY; VERY SOFT; THICK, PASTY, OCCASIONALLY RUNNY; SMOOTH TO VERY GRII-I'Y; STICKY; MOD PLIABLE; MOD SOLUBLE; SLIGHTLY EXPANSIVE WITH HYDRATION; NON TO SLIGHTLY CALCAREOUS; DOMINANT AMORPHOUS, OCCASIONALLY LUMPY; LOCALLY SILTY; SCATTERED CARBONACEOUS SPECKS; OCCASIONALLY TO COMMON FINE TO COARSE SAND GRAINS EMBEDDED IN LUMPS; NO OIL INDICATORS. 4400' CONGLOMERATE = LIGHT TO DARK GRAY, BLACK, TRANSLUCENT WHITE, CLEAR, OCCASIONALLY DARK GREENISH GRAY, OCCASIONALLY DARK REDDISH ORANGE; CLASTS RANGE FROM GRANULE TO COBBLE FRAGMENTS, DOMINANT MEDIUM TO GRANULE SIZE; ANGULAR TO WELL ROUNDED, DOMINANT SUBROUND TO ROUND; ANGULAR FRACTION PROBABLY DUE MOSTLY TO BIT SHEARING; 7C~ IGNEOUS/METAMORPHIC LITHICS, ;3C~ QUARTZ, SCATTERED PYRITE; ESTIMATED GOOD POROSITY AND PERMEABILITY. 4470' CONGLOMERATE = LIGHT TO DARK GRAY, BLACK, TRANSLUCENT WHITE, CLEAR, OCCASIONALLY DARK GREEN; GRAINS RANGE FROM GRANULE TO COBBLE FRAGMENTS; DOMINANTLY GRANULE TO PEBBLE SIZE FRAGMENTS; ANGULAR TO WELL ROUND, ANGULAR FRACTION IN DUE MOSTLY TO BIT SHEARING; 7C~ METAMORPHIC/IGNEOUS LITHICS, $0~ QUARTZ, SCAlffERED CHERT AND RARE PYRITE CLUSTERS; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; ABUNDANT CEMENT CONTAMINATION; NO OIL. 4520' SAND -- MEDIUM TO DARK GRAY, BLACK, OCCASIONALLY DARK REDDISH ORANGE; RANGES FROM FINE LOWER TO VERY COARSE UPPER, DOMINANTLY MEDIUM TO COARSE; POORLY SORTED; ANGULAR TO WELL ROUNDED, DOMINANTLY SUBANGULAR TO ROUNDED; 6C~ METAMORPHIC/IGNEOUS LITHICS; 3C~ QUARTZ; 1C~ CHERT; SCATTERED PYRITE CLUSTERS; NON CALCAREOUS; NO EVIDENCE OF MATRIX OR CEMENT; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; ABUNDANT CEMENT CONTAMINATION; NO OIL INDICATORS. 4570' LIMESTONE: PALE YELLOWISH BROWN; MODERATELY HARD; BRITTLE; TOUGH; TABULAR AND PLATY CUTTINGS; DULL TO SLIGHTLY VITREOUS LUSTER; SMOOTH TO SLIGHTLY GRAINY TEXTURE; FAST ACID REACTION; LOCALLY SLIGHTLY ARGILLACEOUS; OCCASIONALLY VERY THIN BANDING VISIBLE ON EDGES; PALE YELLOW MINERAL FLUORESCENCE; NO OIL. 4650' CONGLOMERATE: LIGHT TO DARK GRAY, BLACK, DUSKY BROWN, TRANSLUCENT WHITE, OCCASIONALLY DARK RED; SIZE RANGES FROM GRANULE TO PEBBLE; POORLY SORTED; ANGULAR TO WELL ROUNDED, DOMINANTLY SUBROUND TO ROUNDED; COMMON ANGULAR BIT SHEARED FRAGMENTS; 70~ METAMORPHIC/IGNEOUS LITHICS; $C~. QUARTZ; MINOR CHERT; SCATTERED CLUSTERS MICROCRYSTALLINE PYRITE; SCATTERED LIGNITE; VARIABLE CLAY/GRAIN SUPPORT; NON CALCAREOUS; ESTIMATED FAIR VISUAL POROSITY AND PERMEABILITY; NO OIL. 4680' CLAYSTONE = MEDIUM BROWNISH GRAY; SOFT; MUSHY TO OCCASIONALLY CRUMBLY; SMALL IRREGULAR, OCCASIONALLY SUBBLOCKY, OCCASIONALLY PLATY CUTTINGS; DULL LUSTER; SMOOTH TO VERY GRII-I'Y TEXTURE; NON CALCAREOUS; VERY SILTY, GRADES IN PART TO ARGILLACEOUS SILTSTONE; LOCALLY COMMON VERY FINE TO FINE SAND; SCATTERED TO COMMON CARBONACEOUS SPECKS; NO OIL INDICATORS. 4740' SAND: CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO COARSE, DOMINANTLY VERY FINE TO FINE; SUBANGULAR TO WELL ROUNDED, DOMINANTLY SUBROUND; MODERATELY WELL SORTED; 70~ QUARTZ, 3C~ METAMORPHIC/IGNEOUS LITHICS; SCATTERED CHERT; LOCALLY SILTY; TOTALLY DISAGGREGATED IN SAMPLES; APPARENT GOOD POROSITY AND PERMEABILITY; NON CALCAREOUS; NO OIL INDICATORS. 4790' CLAY = MEDIUM BROWNISH GRAY; VERY SOFT; THICK TO RUNNY; SMOOTH TO VERY GRITTY; POOR TO FAIR COHESION; STICKY; MODERATELY TO SOLUBLE; MODERATELY EXPANSIVE WITH HYDRATION; NON TO SLIGHTLY CALCAREOUS; SCA'FI'ERED SLIGHTLY FIRM LUMPS; LOCALLY VERY SILTY, GRADING TO SILTSTONE; NO OIL. 4830' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE; SUBANGULAR TO WELL ROUNDED, DOMINANTLY SUBANGULAR TO ROUNDED; MODERATELY WELL SORTED; 70~ QUARTZ, 30% METAMORPHIC/IGNEOUS LITHICS; LOCALLY VERY SILTY; SCATTERED CLUSTERS MICROCRYSTALLINE PYRITE; VARIABLE CLAY/GRAIN SUPPORT; NON CALCAREOUS; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 4890' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY; SOFT~ MUSHY TO OCCASIONALLY CRUMBLY; SMALL IRREGULAR, SUBBLOCKY, OCCASIONALLY PLATY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO VERY GRITTY TEXTURE; NON TO SLIGHTLY CALCAREOUS; LOCALLY VERY SILTY, GRADING IN PART TO SILTSTONE; SCATTERED TO COMMON CARBONACEOUS SPECKS; STRUCTURELESS; NO OIL INDICATORS. 4930' SAND = CLEAR,'TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE; MODERATELY WELL SORTED; SUBANGULAR TO WELL ROUNDED, DOMINANTLY SUBROUND TO ROUNDED; 70~ QUARTZ, 30% METAMORPHIC/IGNEOUS LITHICS; SCATTERED CHERT; SCA'rrERED CARBONACEOUS SPECKS; TOTALLY UNCONSOLIDATED; NON CALCAREOUS; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 4980' CLAY = LIGHT TO MEDIUM BROWNISH GRAY; VERY SOFT; RUNNY TO THICK; SMOOTH TO VERY GRI'I-I'Y; POOR COHESION; MODERATELY ADHESION; MODERATELY TO HIGHLY SOLUBLE; NON TO SLIGHTLY EXPANSIVE WITH HYDRATION; NON TO SLIGHTLY CALCAREOUS; SCA'I-I'ERED SLIGHTLY FIRM LUMPS~ LOCALLY VERY SILTY, GRADING IN PART TO SILTSTONE LOCALLY COMMON VERY FINE TO FINE SAND GRAINS EMBEDDED IN LUMPS; NO OIL. 5030' LIMESTONE = PALE YELLOWISH BROWN; MODERATELY HARD; BRITTLE; TOUGH; DENSE; TABULAR AND PLATY CUTTINGS; SLIGHTLY RESINOUS LUSTER; SMOOTH TO SLIGHTLY GRITTY TEXTURE; FAST ACID REACTION; THIN BANDING VISIBLE ON EDGES OF CUTTINGS; PALE YELLOW MINERAL FLUORESCENCE; NO OIL INDICATORS. 5070' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE; MODERATELY WELL SORTED; SUBANGULAR TO WELL ROUNDED, DOMINANTLY SUBROUND TO ROUND; 70% CHERT; SCATTERED CARBONACEOUS MATERIAL; OCCASIONALLY CLUSTERS MICROCRYSTALLINE PYRITE; NON CALCAREOUS; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 5120' CLAYSTONE = MEDIUM BROWNISH GRAY; SOFT; CRUMBLY TO MUSHY; SMALL IRREGULAR, SUBBLOCKY, OCCASIONALLY PLATY CUTEINGS; DULL, EARTHY LUSTER; SMOOTH TO VERY GRAINY TEXTURE; NON CALCAREOUS; ASHY IN PART; SCATTERED TO COMMON LIGHT GRAY ASHY LAMINATIONS; LOCALLY SILTY GRADING TO SILTSTONE; SCATTERED TO COMMON CARBONACEOUS SPECKS; TRACE LIMESTONE; NO OIL. 5180' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE; MODERATELY WELL SORTED; SUBANGULAR TO WELL ROUNDED, DOMINANTLY SUBANGULAR TO SUBROUND; CONSISTS OF 80% QUARTZ, 2C~ IGNEOUS/METAMORPHIC LITHICS; RARE FREE CLUSTERS OF PYRITE; SCAI-rERED TO COMMON LIGNITE; UNCONSOLIDATED IN SAMPLE; NON TO SLIGHTLY CALCAREOUS; FAIR TO GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NO OIL. 5230' CLAY = MEDIUM BROWNISH GRAY, OCCASIONALLY LIGHT BROWNISH GRAY; VERY SOFT; STICKY; RUNNY, OCCASIONALLY STIFF; DOMINANTLY SMOOTH, OCCASIONALLY GRITTY; MODERATELY TO VERY SOLUBLE; SLIGHTLY EXPANSIVE WITH HYDRATION; NON TO SLIGHTLY CALCAREOUS; SCATTERED TO COMMON SLIGHTLY FIRM LUMPS; LOCALLY VERY SILTY; LOCALLY ASHY; SCATTERED TO COMMON CARBONACEOUS SPECKS; NO OIL INDICATORS. 5280' SAND -- CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO OCCASIONALLY COARSE, DOMINANTLY VERY FINE TO FINE; MODERATELY WELL SORTED; SUBANGULAR TO ROUNDED; 70% QUARTZ, 30% LITHICS; SCATTERED PYRITE CLUSTERS; SCATTERED TO COMMON LIGNITE; NON CALCAREOUS; APPARENT VARIABLE CLAY/GRAIN SUPPORT; TOTALLY UNCONSOLIDATED IN SAMPLE; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 5330' CLAYSTONE = MEDIUM GRAY TO MEDIUM BROWNISH GRAINED; SOFT TO STICKY; MUSHY; OCCASIONALLY SMALL IRREGULAR BLOCKY TO SUBBLOCKY; DULL LUSTER; SMOOTH TEXTURE; NON TO SLIGHTLY CALCAREOUS; ASHY IN PART; SCATEERED TO COMMON LIGHT GRAY ASHY LAMINATIONS; LOCAL SILTY; COMMON CARBONACEOUS SPECKS; TRACE OF LIMESTONE; NO OIL INDICATORS. 5370' SAND = CLEAR TO TRANSLUCENT, LIGHT GRAY; UPPER VERY FINE TO FINE OCCASIONALLY MEDIUM GRAINED; MODERATELY TO WELL ROUNDED; MODERATELY HARD TO HARD; MODERATELY TO HIGH SPHERICITY; LOW TO MODERATELY SURFACE ABRASION; LOCAL OCCASIONALLY CLAY SLIGHTLY EXPANSIVE MATRIX; QUARTZ; OCCASIONALLY TO COMMON CARBONACEOUS SPECKS; TRACE PYRITE; NO OIL INDICATORS. 5410' CLAYSTONE -- MEDIUM LIGHT GRAY TO LIGHT BROWNISH GRAY; SMOOTH TEXTURE; STICKY TO SOFT; DULL EARTHY LUSTER; NON TO SLIGHTLY CALCAREOUS; ASHY IN PART; COMMON BLACK CARBONACEOUS SPECKS; MUSHY TO LUMPY CONSISTENCY; CRUMBLY TENACITY; TRACE OF LIMESTONE; NO OIL INDICATORS. 5450' SAND = CLEAR TO TRANSLUCENT, VERY LIGHT GRAY TO LIGHT GRAY; VERY FINE TO UPPER FINE OCCASIONALLY MEDIUM; WELL TO VERY WELL SORTED; SUBROUNDED TO ROUNDED; MODERATELY TO LOW SURFACE ABRASION~ QUARTZ; APPARENT VARIABLE CLAY AND GRAIN SUPPORT; ALMOST TOTALLY UNCONSOLIDATED IN SAMPLE; ESTIMATED FAIR TO GOOD POROSITY AND PERMEABILITY, NO OIL INDICATORS ARE PRESENT. 5500' CLAYSTONE - MEDIUM LIGHT GRAY TO LIGHT BROWNISH GRAY; SMOOTH TEXTURE; VERY SOFT TO STICKY; DULL TO EARTHY LUSTER; NON CALCAREOUS; CRUMBLY TO MUSHY OCCASIONALLY PLATY; LUMPY TO CLUMPY CONSISTENCY; TRACE OF LIMESTONE; COMMON CARBONACEOUS SPECKS. 5540' SAND -- CLEAR TO TRANSLUCENT; VERY LIGHT GRAY TO DARK GRAY; SIZE RANGES FROM MEDIUM VERY FINE TO UPPER FINE OCCASIONALLY MEDIUM; HARD; MODERATELY SORTED; VARIABLE CLAY AND GRAIN SUPPORT; ALMOST TOT UNCONSOLIDATED; MODERATELY TO LOW SURFACE ABRASION; COMPOSED MAINLY OF QUARTZ; FAIR TO GOOD ESTIMATED POROSITY AND PERMEABILITY, NO OIL INDICATORS PRESENT. 5590' LIMESTONE = VERY PALE ORANGE TO PALE YELLOWISH BROWN; MODERATELY HARD; BRI'I-rLE; GRITTY TEXTURE; DENSE; TABULAR TO PLATY HABIT IN CU'KI'INGS; WAXY TO RESINOUS LUSTER; FAST BUBBLY ACID REACTION; VERY PALE MINERAL FLUORESCENCE, NO OIL INDICATORS.. 5620' SAND = TRANSLUCENT, VERY LIGHT GRAY TO MEDIUM DARK GRAY; VERY FINE TO UPPER FINE; MODERATELY HARD; ROUNDED TO WELL ROUNDED; MODERATELY TO HIGH SPHERICITY; MODERATELY SURF ABRASION; MODERATELY WELL SORTED; LOCAL VARIABLE CLAY AND GRAIN SUPPORT; UNCONSOLIDATED; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 5620' CLAYSTONE = MEDIUM LIGHT GRAY TO LIGHT BROWNISH GRAY; SOFT TO VERY SOFT; CRUMBLY TO-MUSHY; LUMPY TO PASTY; HYDROPHILIC EXPANSIVE; MASSIVE OCCASIONALLY ELONGATED; DULL LUSTER; SMOOTH TEXTURE. 5700' SAND = CLEAR TO TRANSLUCENT, VERY LIGHT GRAY TO DARK GRAY; VERY FINE TO UPPER FINE OCCASIONALLY MEDIUM; ROUNDED TO SUBROUNDED; WELL SORTED; MODERATELY SPHERICITY; UNCONSOLIDATED; APPARENT CLAY AND GRAIN SUPPORT; CARBONACEOUS SPECKS; 90% QUARTZ AND 10% METAMORPHIC LITHICS, NO OIL INDICATORS. 5740' LIMESTONE = VERY PALE ORANGE TO PALE YELLOWISH BROWN; MODERATELY HARD TO HARD; DENSE OCCASIONALLY BRITTLE; TABULAR TO PLATY HABIT; WAXY LUSTER; FAST BUBBLY REACTION TO ACID; NO OIL INDICATORS. 5780' SAND = TRANSLUCENT, LIGHT GRAY TO MEDIUM GRAY TO DUSKY BROWN; UPPER FINE TO MEDIUM OCCASIONALLY COARSE; HARD; SUBROUNDED TO ROUNDED; LOW TO MODERATELY SPHERICITY; MODERATELY TO WELL SORTED; COMPOSED OF 80% QUARTZ, 20% OF VARIOUS METAMORPHIC LITHICS; COMMON SCATTERED CARBONACEOUS SPECKS, GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY., NO OIL INDICATORS. 5820' CLAYSTONE - MEDIUM LIGHT GRAY TO LIGHT BROWNISH GRAY; SMOOTH~ SOFT TO VERY SOFT; DULL TO EARTHY LUSTER; NON-CALCAREOUS; MUSHY TO CRUMBLY OCCASIONALLY ELONGATED; LUMPY; COMMON SCATTERED CARBONACEOUS SPECKS, TRACE OF LIMESTONE. ,5850' SAND = LIGHT GRAY TO MEDIUM GRAY TO DUSKY BROWNISH GRAY; UPPER FINE TO MEDIUM OCCASIONALLY COARSE; ROUNDED TO SUBROUNDED~ POORLY TO MODERATELY SORTED; LOCAL CLAYEY MATRIX~ DOMINANTLY GRAIN SUPPORT; HARD; LOW SURFACE ABRASION; UNCONSOLIDATED; COMPOSED OF 80~ OF QUARTZ AND 20~ OF METAMORPHIC LITHICS; NO OIL INDICATORS. ,5900' LIMESTONE = PALE ORANGE TO LIGHT BROWN; HARD; SLIGHTLY BRITTLE; DENSE; TABULAR OCCASIONALLY ELONGATED; WAXY TO EARTHY LUSTER; FAST ACID BUBBLY REACTION; NO OIL INDICATORS.. ,5920' CLAYSTONE = MEDIUM GRAY TO BROWNISH GRAY WITH OCCASIONALLY OLIVE HUES; SOFT TO STICKY~ CRUMBLY TO MUSHY; CLUMPY; HYDROPHILIC EXPANSIVE; NODULAR MASSIVE OCCASIONALLY ELONGATED HABIT~ EARTHY DULL LUSTER; SMOOTH TEXTURE; COMMON CARBONACEOUS SPECKS; NON TO SLIGHTLY CALCAREOUS. ,5960' SAND = CLEAR, TRANSLUCENT, LIGHT GRAY TO MEDIUM GRAY TO OCCASIONALLY BLACK; SIZE RANGES FROM UPPER VERY FINE TO UPPER FINE TO MEDIUM OCCASIONALLY COARSE-GRAINED; ROUNDED TO SUBROUNDED OCCASIONALLY SUBANGULAR FOR COARSE GRAINS; HARD; POOR TO MODERATELY SORTED. ,5990' CLAYSTONE - LIGHT GRAY TO MEDIUM GRAY TO BROWNISH GRAY; SOFT OCCASIONALLY STICKY; SMOOTH TEXTURE~ ALMOST STRUCTURELESS LOCAL LUMPY~ MUSHY TO PASTY CONSISTENCY; DULL TO EARTHY LUSTER; NON-CALCAREOUS; NO OIL INDICATORS. 6030' SAND -- CLEAR, TRANSLUCENT, LIGHT GRAY TO MEDIUM GRAY TO DUSKY BROWN~ UPPER FINE TO UPPER MEDIUM OCCASIONALLY MEDIUM COARSE; POOR TO MODERATE SORTING; ROUNDED TO SUBROUNDED; OCCASIONALLY SUBANGULAR; FINER GRAINS TEND TO BE BETTER SORTED AND ROUNDED; OCCASIONALLY BIT-IMPACTED COARSE SAND GRAINS AND WASHED OUT GRAVEL; COMMON CLAYEY MATRIX; POORLY CONSOLIDATED TO UNCONSOLIDATED; DOMINANTLY GRAIN SUPPORT; COMPOSE MAINLY OF QUARTZ (75-80~) AND 20~ OF VARIOUS METAMORPHIC LITHICS, TRACE OF CHERT; FAIR TO GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 6100' CLAYSTONE = MEDIUM GRAY TO BROWNISH GRAY; SOFT TO STIC:KY~ ALMOST STRUCTURELESS; LOCAL LUMPY; MUSHY TO PASTY; HYDROPHILIC EXPANSIVE~ DULL TO EARTHY LUSTER; NON-CALCAREOUS; COMMON CARBONACEOUS SPECKS. 6130' COAL = BLACK TO BROWNISH BLACK; FIRM TO HARD; DOMINANTLY BRITTLE; EARTHY TEXTURE OCCASIONALLY ROUGH AND GLASSY; RESINOUS LUSTER; IRREGULAR FRACTURE HABIT; GRADE PROBABLY BITUMINOUS; OCCASIONALLY GAS BUBBLES ON FRACTURE SURFACE. 6170' SAND- TRANSLUCENT WHITE, CLEAR, LIGHT TO MEDIUM GRAY, BLACK~ RANGES FROM VERY FINE TO MEDIUM GRAIN, DOMINANTLY VERY FINE TO FINE; MODERATELY WELL SORTED; SUBANGULAR TO ROUND; 70% QUARTZ, 80% METAMORPHIC/IGNEOUS LITHICS; SCATTERED CARBONACEOUS MATERIAL, RARE CLUSTERS OF MICROCRYSTALLINE PYRITE; NON TO SLIGHTLY CALCAREOUS; TOTALLY UNCONSOLIDATED IN SAMPLE~ ASSUME GRAIN SUPPORTED; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; NO · OIL INDICATORS. 6220' CLAY/CLAYSTONE = MEDIUM BROWNISH GRAY WITH SCATTERED LIGHT GRAY STREAKS; VERY SOFT TO SOFT; MUSHY TO OCCASIONALLY CRUMBLY; AMORPHOUS TO OCCASIONALLY SUBBLOCKY OR PLATY; DULL, EARTHY LUSTER; SMOOTH TO VERY GRAINY TEXTURE; NON TO SLIGHTLY CALCAREOUS; LOCALLY VERY SILTY, GRADING TO SILTSTONE; SCATTERED TO COMMON CARBONACEOUS SPECKS: SCAI-I'ERED MICA; STRUCTURELESS; NO OIL INDICATORS. 6290' SAND '" CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY, OCCASIONALLY DARK GREENISH GRAY; VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE GRAIN SIZE RANGE; SUBANGULAR TO ROUND; MODERATELY WELL SORTED; 70% QUARTZ, 30% IGNEOUS/METAMORPHIC LITHICS; SCATTERED CARBONACEOUS MATERIAL; NON CALCAREOUS; SCATTERED TO COMMON MODERATELY HARD CHIPS OF PALE YELLOWISH BROWN CLAYSTONE; NO EVIDENCE OF MATRIX OR CEMENTATION; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 6340' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM RAY, BLACK; CLASTS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE; MODERATELY WELL SORTED; SUBANGULAR TO ROUND; 80% QUARTZ, 20% IGNEOUS/METAMORPHIC LITHICS; SCATTERED CLUSTERS MICROCRYSTALLINE PYRITE; SCATTERED CARBONACEOUS MATERIAL; NON TO SLIGHTLY CALCAREOUS; SCATTERED LUMPS OF POSSIBLE CLAY MATRIX MATERIAL; ASSUME VARIABLE GRAIN/MATRIX SUPPORT; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 6400' CONGLOMERATIC SAND = MEDIUM TO DARK GRAY, BLACK, TRANSLUCENT WHITE, CLEAR; CLASTS RANGE FROM FINE TO GRANULE SIZE, DOMINANTLY MEDIUM TO COARSE; POORLY SORTED; SUBROUND TO ROUND; 70% METAMORPHIC/IGNEOUS LITHICS, 30% QUARTZ; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 6440' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY; VERY SOFT TO FIRM; MUSHY TO OCCASIONALLY BRITTLE; AMORPHOUS TO OCCASIONALLY PLATY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO GRITTY TEXTURE; NON TO SLIGHTLY CALCAREOUS; LOCALLY VERY SILTY, GRADING TO SILTSTONE IN PART; NO STRUCTURE; NO OIL INDICATORS. 6480' CONGLOMERATIC SAND = MEDIUM TO DARK GRAY, BLACK, TRANSLUCENT WHITE, CLEAR; GRAINS RANGE FROM VERY FINE TO GRANULE, DOMINANTLY MEDIUM; POORLY SORTED; ANGULAR TO ROUNDED; COMPOSED OF 60% QUARTZ, 40% IGNEOUS/ METAMORPHIC LITHICS; NON CALCAREOUS; NO APPARENT MATRIX OR CEMENT; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 6,540' CLAY/CLAYSTONE = MEDIUM BROWNISH GRAY, OCCASIONALLY PALE YELLOWISH BROWN; V SOFT TO OCCASIONALLY FIRM; MUSHY TO OCCASIONALLY FIRM; DULL, EARTHY TO SLIGHTLY RESINOUS LUSTER; SMOOTH TO GRITTY TEXTURE; NON TO SLIGHTLY CALCAREOUS; LOCALLY VERY SILTY, GRADING IN PART TO SILTSTONE; STRUCTURELESS; NO OIL. 6580' COAL: BLACK TO DUSKY BROWN; FIRM TO MODERATELY HARD; CRUMBLY TO BRITTLE; MODERATELY TOUGH IN PART; SMALL IRREGULAR, BLOCKY, OCCASIONALLY TABULAR CUTTINGS; RARE CONCHOIDAL FRACTURE SURFS; RARE GAS BUBBLES ON SURFACES. 6610' CLAY/CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY, OCCASIONALLY PALE YELLOWISH BROWN; VERY SOFT TO OCCASIONALLY FIRM; MUSHY TO OCCASIONALLY BRITTLE; AMORPHOUS TO OCCASIONALLY SUBBLOCKY AND PLATY; DULL EARTHY LUSTER; SMOOTH TO MODERATELY GRITTY TEXTURE; NON TO SLIGHTLY CALCAREOUS; LOCALLY SILTY; NO STRUCTURE; NO OIL INDICATORS. 6650' SAND: CLEAR, TRANSLUCENT WHITE, MEDIUM TO DARK GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY FINE; SUBANGULAR TO ROUNDED; MODERATELY WELL SORTED; COMMON PITTED AND FROSTED GRAINS; 6C~7~ QUARTZ, 40~ METAMORPHIC AND IGNEOUS LITHICS; SCATTERED CLUSTERS OF MICROCRYSTALLINE PYRITE; SCATTERED TO COMMON CARBONACEOUS MATERIAL~ NON TO SLIGHTLY CALCAREOUS; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 6710' SAND = CLEAR, TRANSLUCENT WHITE, MEDIUM GRAY, DUSKY BROWN, BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE; WELL SORTED; SUBANGULAR TO SUBROUND; 70~ QUARTZ, $0~ IGNEOUS/METAMORPHIC LITHICS; SCATTERED FELDSPAR; RARE CHUNKS OF MICROCRYSTALLINE PYRITE; NON TO VERY SLIGHTLY CALCAREOUS; NO APPARENT MATRIX OR CEMENTATION; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 6780' SAND = CLEAR, WHITE, LIGHT TO DARK GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY FINE TO MEDIUM; MODERATELY WELL SORTED; ANGULAR TO SUBROUND, DOMINANTLY SUBANGULAR TO SUBROUND; COMPOSED OF 7C~ QUARTZ, 8C~Y~ LITHICS, SCAlffERED CHERT AND FELDSPAR; OCCASIONALLY CHUNKS OF MICROCRYSTALLINE PYRITE~ NON CALCAREOUS; NO EVIDENCE OF MATRIX OR CEMENT; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 6840' COAL: BLACK, DUSKY BROWN; FIRM TO MODERATELY HARD; CRUMBLY TO BRITTLE; SMALL IRREGULAR AND TABULAR CUTTINGS; DULL TO SLIGHTLY RESINOUS LUSTER; SMOOTH TEXTURE; OCCASIONALLY CUTTINGS EXHIBIT CONCHOIDAL FRACTURE SURFACES; RARE CUTTINGS SHOW PINPOINT GAS BUBBLES ON SURFACES. 6880' SAND: CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY, BLACK; VERY FINE TO COARSE, DOMINANTLY FINE TO MEDIUM SIZE RANGE; ANGULAR TO ROUND, DOMINANTLY SUBANGULAR TO SUBROUND; MODERATELY SORTED; COMPOSED OF 60~ QUARTZ, 4C~ IGNEOUS/METAMORPHIC LITHICS; SCATTERED PYRITE; NO OIL INDICATORS. 6920' SAND "- CLEAR, TRANSLUCENT WHITE, LIGHT GRAY; GRAINS RANGE FROM VERY FINE LOWER TO MEDIUM LOWER IN SIZE, DOMINANTLY VERY FINE TO FINE; WELL SORTED; SUBANGULAR TO ROUNDED DOMINANTLY SUBANGULAR TO SUBROUND; COMPOSED OF 8C~ QUARTZ, 2C~ IGNEOUS/METAMORPHIC LITHICS; SCATI'ERED TO COMMON COAL; RARE CLUSTERS MICROCRYSTALLINE PYRITE; NO EVIDENCE OF MATRIX OR CEMENTATION; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 6980' CLAYSTONE = LIGHT BROWNISH GRAY TO BROWNISH GRAY; VERY SOFT TO SOFT; VERY POOR INDURATION; CRUMBLY TO MUSHY; SMOOTH TEXTURE; DULL TO EARTHY LUSTER; NON-CALCAREOUS; LOCAL SILTY; GENERALLY AMORPHOUS OCCASIONALLY LUMPY; TRACES OF PYRITE AND LIMESTONE; NO OIL INDICATORS. 7020' SAND = CLEAR, TRANSLUCENT, LIGHT GRAY TO DARK GRAY; GRAIN SIZE RANGES FROM UPPER FINE TO LOWER COARSE; WELL SORTED; HARD; SUBROUNDED TO SUBANGULAR OCCASIONALLY ROUNDED; MODERATE SURFACE ABRASION; FINER GRAINS APPEAR TO BE BETTER MORE ROUNDED AND BETTER SORTED; COMPOSED OF 80~ QUARTZ AND 20~ METAMORPHIC/IGNEOUS LITHICS; NO OIL INDICATORS.. 7060' COAL = BROWNISH BLACK TO BLACK; SOFT TO FIRM; OCCASIONALLY BRITTLE; IRREGULAR FRACTURE HABIT; RESINOUS TO VITREOUS LUSTER; LIGNITE TO BITUMINOUS GRADING; EARTHY TO GRITTY TEXTURE; OCCASIONALLY SUBFISSILE. 7090' CLAYSTONE = LIGHT BROWNISH GRAY TO BROWN GRAY; MODERATELY SOFT TO FIRM; POOR INDURATION; DENSE TO BRITTLE OCCASIONALLY CRUMBLY TENACITY[ LUMPY CONSISTENCY; SLIGHTLY HYDROPHILIC EXPANSIVE; NODULAR OCCASIONALLY EQUANT CUTTINGS HABIT; SMOOTH TEXTURE; TRACE OF LIGNITE; OCCASIONALLY WOODY ELONGATED FRAGMENTS. 7150' SAND = CLEAR, TRANSLUCENT, LIGHT-DARK GRAY; UPPER FINE TO MEDIUM; MODERATELY TO WELL SORTED; SUBROUNDED TO ROUNDED; MODERATE SPHERICITY; PITTED OCCASIONALLY POLISHED TEXTURE; PREDOMINANTLY QUARTZ [90~) AND 10 % OF METAMORPHIC/IGNEOUS LITHICS; NO OIL INDICATORS. 71 70' COAL = MODERATE BROWN TO BLACK; FIRM; BRITTLE; GRADE OF LIGNITE TO BITUMINOUS; SMALL IRREGULAR FRACTURES; FISSILE TO SUBFISSILE; ROUGH TEXTURE; OCCASIONAL TO COMMON CARBONACEOUS SPECKS. 7200' CLAYSTONE = MEDIUM GRAY TO BROWNISH GRAY~ SOFT; NON-INDURATED; CRUMBLY TENACITY; MUSHY TO LUMPY CONSISTENCY; NODULAR OCCASIONALLY EQUANT HABIT; DULL EARTHY LUSTER; SMOOTH OCCASIONALLY AMORPHOUS TEXTURE; COMMON CARBONACEOUS SPECKS. 7230' SAND = CLEAR, TRANSLUCENT, LIGHT GRAY TO DARK GRAY; UPPER FINE TO MEDIUM OCCASIONALLY LOWER COARSE; MODERATELY TO WELL SORTED; SUBROUNDED TO ROUNDED; FINER GRAINS TEND TO BE BETTER SORTED AND ROUNDED; HARD; DOMINANTLY GRAIN-SUPPORTED, LOCAL CLAYEY MATRIX; TRACE OF WASHED OUT COAL; COMPOSED OF 9C~ SAND AND 10~ METAMORPHIC/IGNEOUS LITHICS. 7270' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY; VERY SOFT TO SOFT~ MUSHY TO CRUMBLY RARELY BRITTLE AND MODERATELY TOUGH; SMALL AMORPHOUS, SUBBLOCKY AND OCCASIONALLY PLATY CUTTINGS; DULL LUSTER; MODERATELY GRAINY TEXTURE; NON CALCAREOUS; LOCALLY SILTY; LOCALLY VERY CARBONACEOUS WITH COMMON SPECKS AND VERY THIN LAMINATIONS. 7320' COAL = BLACK TO OCCASIONALLY DUSKY BROWN; FIRM TO MODERATELY HARD; BRITTLE, MODERATELY TOUGH; SMALL IRREGULAR, TABULAR AND PLATY CUTTINGS, OCCASIONALLY WITH CONCHOIDAL FRACTURE SURFACES; RESINOUS LUSTER; SMOOTH TEXTURE; OCCASIONALLY THIN LAMINATIONS OF CLAYSTONE; RARE PINPOINT GAS BUBBLES ON SURFACES. 7870' SAND: CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, OCCASIONALLY BLACK; VERY FINE TO COARSE, DOMINANTLY FINE; MODERATELY WELL SORTED; ANGULAR TO ROUND, DOMINANTLY SUBANGULAR TO SUBROUNDED; 70~ QUARTZ, ,30~ LITHICS, SCATTERED CHERT AND FELDSPAR; SCATI'ERED TO COMMON WHITE CALCITE; TOTALLY UNCONSOLIDATED IN THE SAMPLES; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 7420' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY, PALE YELLOWISH BROWN; SOFT TO OCCASIONALLY MODERATELY HARD; SMALL AMORPHOUS, OCCASIONALLY PLATY CUTTINGS; DULL TO SLIGHTLY RESINOUS LUSTER; SMOOTH TO GRAINY TEXTURE; NON TO SLIGHTLY CALCAREOUS; BROWNISH GRAY FRACTION IS VERY POORLY INDURATED; PALE YELLOWISH BROWN FRACTION IS MODERATELY WELL INDURATED; LOCALLY VERY SILTY, GRADING TO SILTSTONE. 7470' SAND - CLEAR, BROWNISH GRAY, TRANSLUCENT WHITE, BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY FINE TO MEDIUM; MODERATELY WELL SORTED; SUBANGULAR TO ROUNDED; COMPOSED OF 60% QUARTZ, 40~ IGNEOUS AND METAMORPHIC LITHICS; SCATTERED CALCITE CHUNKS; SCATTERED CLUSTERS MICROFINE PYRITE; TOTALLY UNCONSOLIDATED; NON TO SLIGHTLY CALCAREOUS; NO EVIDENCE OF MATRIX; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 7530' CLAYSTONE = BROWNISH GRAY; SOFT TO OCCASIONALLY FIRM; SMOOTH TEXTURE; AMORPHOUS OCCASIONALLY LUMPY; DULL EARTHY LUSTER; CRUMBLY TO MUSHY; POOR INDURATION; LOCAL SILTY; OCCASIONALLY CARBONACEOUS SPECKS. 7560' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY TO DARK GRAY OCCASIONALLY BROWNISH GRAY; UPPER FINE TO MEDIUM; SUBROUNDED TO ROUNDED OCCASIONALLY SUBANGULAR; MODERATELY SPHERICITY; HARD; MODERATELY TO WELL SORTED; LOCAL CLAYEY MATRIX; DOMINANTLY GRAIN SUPPORT; 70~ OF QUARTZ AND 30~ OF VARIOUS METAMORPHIC/IGNEOUS LITHICS; OCCASIONALLY SCATTERED WHITE CALCITE AND MICA FRAGMENTS; GOOD VISUAL ESTIMATED POROSITY AND PERMEABILITY; NO OIL. 7620' LIMESTONE = VERY PALE ORANGE TO PALE YELLOWISH BROWN; MODERATELY HARD; BRITTLE; GRITTY TO SMOOTH TEXTURE; TABULAR PLATY CUTTINGS HABIT; WAXY LUSTER; FAST BUBBLY REACTION TO HCL ACID, VERY PALE MINERAL FLUORESCENCE, NO OIL INDICATORS. 7650' SAND = CLEAR, TRANSLUCENT, MEDIUM TO DARK GRAY; MEDIUM TO LOWER COARSE; MODERATELY SORTED; SUBROUNDED TO SUBANGULAR; LOCAL CLAYEY MATRIX; DOMINANTLY GRAIN SUPPORT; 6C~ QUARTZ, 4C~o METAMORPHIC IGNEOUS 2] LITHICS; OCCASIONALLY SCATTERED MICA FRAGMENTS AND WHITE CALCITE; COMMON LIGHT BROWN WOODY FRAGMENTS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 7710' LIMESTONE = PALE YELLOWISH BROWN TO PALE ORANGE; FIRM; BRITTLE; GRII-I'Y TEXTURE; TABULAR TO SPLINTERY HABIT; DULL TO WAXY LUSTER; VERY FAST BUBBLY ACID REACTION; NO FLUORESCENCE; NO OIL INDICATORS. 7740' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY; FIRM TO HARD; SUBROUNDED TO ROUNDED; MODERATELY TO WELL SORTED; VERY FINE SCATTERED MICA FRAGMENTS; OCCASIONALLY SMALL WOODY CHUNKS; OCCASIONALLY BIT-SHEARED COAL FRAGMENTS; LOCAL CLAYEY MATRIX; DOMINANT GRAIN SUPPORT; COMPOSED OF 60~ QUARTZ AND 4C~Y~ OF VARIOUS DARKER COLORED METAMORPHIC/IGNEOUS LITHICS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL. 7790' LIMESTONE = VERY PALE YELLOWISH ORANGE; FIRM TO SOFT; BRITTLE; GRITTY TEXTURE; PLATY FLAKY HABIT OCCASIONALLY NODULAR; WAXY TO EARTHY LUSTER; VERY FAST ACID REACTION WITH BUBBLES. 7830' SAND = CLEAR, TRANSLUCENT WHITE; LIGHT TO DARK GRAY; UPPER VERY FINE TO MEDIUM OCCASIONALLY LOWER COARSE; SUBROUNDED TO SUBANGULAR OCCASIONALLY ANGULAR; HARD; MODERATELY TO WELL SORTED; NO EVIDENCE OF CLAY MATRIX; GRAIN SUPPORT; SCATTERED FINE MICA AND PYRITE CHUNKS; COMPOSED OF 70~ QUARTZ AND 3C~ METAMORPHIC/IGNEOUS LITHICS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 7880' LIMESTONE - LIGHT GRAY TO WHITE OCCASIONALLY SLIGHTLY PALE YELLOWISH ORANGE; FIRM; DENSE; SOLUBLE IN HCL PRODUCE FAST INTENSE BRISK EFFERVESCENCE; FINE-MEDIUM GRAINED; BRITTLE; DULL TO EARTHY LUSTER; PLATY TO SPLINTERY OCCASIONALLY NODULAR HABIT; COMMON FINE SCATTERED MICA; OCCASIONALLY PYRITE FRAGMENTS. 7920' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY OCCASIONALLY BROWNISH GRAY; SIZE RANGES FROM MEDIUM FINE TO UPPER MEDIUM OCCASIONALLY LOWER TO MEDIUM COARSE; HARD; MODERATELY SORTED; LOCAL EVIDENCE OF CLAYEY STICKY MATRIX; DOMINANTLY GRAIN SUPPORT; TRACE OF LIMESTONE; OCCASIONALLY SCATTERED FINE PIECES OF MICA; OCCASIONALLY PYRITE FRAGMENTS; COMPOSED 70~ OF QUARTZ AND 3C~Y~ OF METAMORPHIC/IGNEOUS LITHICS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 7980' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY OCCASIONALLY BROWNISH GRAY; VERY FINE TO MEDIUM OCCASIONALLY LOWER COARSE; MODERATELY TO WELL SORTED; LOW TO MODERATE SURFACE ABRASION; POLISHED TO SLIGHTLY PITTED GRAIN TEXTURE; MODERATE SPHERICITY; UNCONSOLIDATED; OCCASIONALLY LOCALLY EVIDENCE OF CLAYEY MATRIX; FINER GRAINS TEND TO BE BETTER ROUNDED AND.SORTED; COMPOSED OF 6C~ QUARTZ AND 40% OF DARKER- COLORED METAMORPHIC/IGNEOUS LITHICS; OCCASIONALLY SCATTERED PIECES OF FINE MICA AND FRAGMENTS OF PYRITE; RARE TRACE OF LIMESTONE; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS.. 8070' CONGLOMERATIC SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY, BLACK; GRAINS RANGE FROM VERY FINE TO GRANULE FRAGMENTS~ DOMINANTLY FINE RANGE; ANGULAR TO ROUNDED, DOMINANTLY SUBANGULAR TO SUBROUND~ MODERATELY SORTED; COMPOSED OF 70% QUARTZ, 30% IGNEOUS AND METAMORPHIC LITHICS, SCATTERED MICA, CHERT; RARE PYRITE AND CALCITE FRAGMENTS; NO OBSERVABLE MATRIX OR CEMENTATION; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 8130' CONGLOMERATIC SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY, BLACK; CLASTS RANGE IN SIZE FROM VERY FINE TO GRANULE, DOMINANTLY VERY FINE TO FINE; MODERATELY WELL SORTED; ANGULAR TO WELL ROUNDED, DOMINANTLY SUBANGULAR TO SUBROUND; 60-70% QUARTZ, 30-40% METAMORPHIC/IGNEOUS LITHICS; SCATTERED MUSCOVITE; SCATTERED CALCITE; RARE CLUSTERS MICROCRYSTALLINE PYRITE; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY. 8180' CLAY/CLAYSTONE-" LIGHT TO MEDIUM BROWNISH GRAY, PALE YELLOWISH BROWN~ VERY SOFT TO RARELY FIRM; DOMINANTLY AMORPHOUS, OCCASIONALLY BLOCKY AND PLATY; DULL, EARTHY TO OCCASIONALLY SLIGHTLY RESINOUS LUSTER; SMOOTH TO GRITTY~ NON TO SLIGHTLY CALCAREOUS; SILTY IN PART; SCATTERED TO COMMON CARBONACEOUS MATERIAL; STRUCTURELESS; NO OIL. 8230' SAND: CLEAR, TRANSLUCENT WHITE, VERY LIGHT GRAY, OCCASIONALLY DARK GRAY TO BLACK; VERY FINE TO FINE GRAIN; WELL SORTED; SUBANGULAR TO ROUNDED; COMPOSED OF 90% QUARTZ, 10% LITHICS; RARE CLUMPS MICROCRYSTALLINE PYRITE; NON CALCAREOUS; NO EVIDENCE OF CEMENTATION OR MATRIX; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 8280' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY, OCCASIONALLY DARK GRAY TO BLACK; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE; WELL SORTED; SUBANGULAR TO ROUND; COMPOSED OF 90% QUARTZ, 10% IGNEOUS/METAMORPHIC LITHICS; SCATTERED VERY SMALL CALCITE FRAGMENTS; TOTALLY UNCONSOLIDATED; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 8330' CLAYSTONE - LIGHT TO MEDIUM BROWNISH GRAY, PALE YELLOWISH BROWN; SOFT TO OCCASIONALLY MODERATELY HARD; IRREGULAR TO OCCASIONALLY PLATY CUTTINGS; DULL EARTHY TO OCCASIONALLY SLIGHTLY RESINOUS LUSTER; SMOOTH TO MODERATELY GRITTY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; SILTY; SCATTERED TO COMMON CARBONACEOUS SPECKS AND STREAKS; STRUCTURELESS; NO OIL INDICATORS. 8370' CONGLOMERATIC SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, OCCASIONALLY BLACK; GRAINS RANGE FROM VERY FINE TO GRANULES; DOMINANTLY FINE TO MEDIUM GRAIN; ANGULAR TO ROUND; COMPOSED OF 70% QUARTZ, 30% LITHICS; SCATTERED TO COMMON CALCITE; SCATTERED CARBONACEOUS MATERIAL; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 8420' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY, OCCASIONALLY PALE YELLOWISH BROWN; SOFT TO OCCASIONALLY FIRM; MUSHY TO OCCASIONALLY BRITTLE; SMALL AMORPHOUS, OCCASIONALLY BLOCKY OR PLATY CUTTINGS; DULL, EARTHY TO OCCASIONALLY SLIGHTLY SHINY LUSTER; LOCALLY VERY SILTY, GRADING TO SILTSTONE; SCATTERED TO COMMON CARBONACEOUS MATTER; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; NO OIL. 8480' CONGLOMERATIC SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, BLACK; VERY FINE TO GRANULE SIZE RANGE, DOMINANTLY FINE TO MEDIUM RANGE; ANGULAR TO ROUNDED, DOMINANTLY SUBANGULAR TO SUBROUND; MODERATELY SORTED IN THE FINE TO MEDIUM RANGE; COMPOSED OF 60-70% QUARTZ, 30-40% IGNEOUS AND METAMORPHIC LITHICS; SCATI'ERED TRANSLUCENT CALCITE GRAINS; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY. 8540' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY, PALE YELLOWISH BROWN WITH SLIGHT ORANGE HUES; SOFT TO OCCASIONALLY FIRM; DULL TO OCCASIONALLY SLIGHTLY RESINOUS LUSTER; SMOOTH TO MODERATELY GRAINY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; MINOR FRACTION IS VERY SILTY, AT TIMES GRADING TO SILTSTONE; PALE YELLOWISH BROWN FRACTION APPEARS VERY CLEAN; STRUCTURELESS; NO OIL INDICATORS. 8500' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY, BLACK, OCCASIONALLY DARK GREEN; VERY FINE TO COARSE, DOMINANTLY FINE TO MEDIUM GRAINED; SUBANGULAR TO ROUNDED; MODERATELY SORTED; 60% QUARTZ, 40% IGNEOUS AND METAMORPHIC LITHICS; OCCASIONALLY CALCITE FRAGMENTS; DRILL RATE MAY INDICATE PRESENCE OF CLAY MATRIX NOT SEEN IN SAMPLES; NO OIL INDICATORS. 86,50' CLAYSTONE-' LIGHT BROWNISH GRAY TO MEDIUM GRAY TO MEDIUM BLUISH GRAY OCCASIONALLY OLIVE HUES; FIRM OCCASIONALLY SOFT; BRITTLE TO OCCASIONALLY MUSHY; DULL EARTHY LUSTER; GRAINY TO OCCASIONALLY SMOOTH TEXTURE; LUMPY OCCASIONALLY AMORPHOUS; NON TO SLIGHTLY CALCAREOUS; LOCALLY SILTY; SCATTERED WHITE FRAGMENTS AND DUST OF CALCITE; NO OIL. 8690' SAND = VERY FINE TO MEDIUM OCCASIONALLY LOWER COARSE; CLEAR, TRANSLUCENT WHITE, LIGHT GRAY TO DARK GRAY; HARD; SUBANGULAR TO SUBROUNDED; MODERATELY TO WELL SORTED; POORLY CONSOLIDATED; EVIDENCE OF LOCAL CLAYEY MATRIX; DOMINANTLY GRAIN SUPPORT; SCATTERED FINE CALCITE DUST; OCCASIONAL FINE PIECES OF MICA-MUSCOVITE; COMPOSED MAINLY OF QUARTZ [70%) AND 30% OF METAMORPHIC/IGNEOUS LITHICS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS.. 87,50' SAND = VERY FINE TO FINE OCCASIONALLY LOWER MEDIUM; TRANSLUCENT WHITE, LIGHT TO DARK GRAY; SUBROUNDED TO ROUNDED; MODERATELY-WELL SORTED; LOCAL CLAYEY MATRIX; DOMINANTLY GRAIN SUPPORT; OCCASIONALLY SCATTERED FINE MICA, TRACE OF COAL; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS ARE PRESENT. 8790' CLAYSTONE = LIGHT BROWNISH GRAY TO MEDIUM GRAY TO OCCASIONALLY MEDIUM BLUISH GRAY; FIRM OCCASIONALLY SOFT; BRITTLE TO LOCAL MUSHY; DULL EARTHY LUSTER; GRAINY TO OCCASIONALLY SMOOTH TEXTURE; AMORPHOUS LOCAL LUMPY CONSISTENCY; NON TO SLIGHTLY CALCAREOUS; LOCAL SILTY; NO OIL. 8884D' SILTSTONE = MEDIUM LIGHT GRAY TO OCCASIONALLY PALE YELLOWISH ORANGE; SOFT OCCASIONALLY FIRM; DENSE; BRITTLE; EARTHY FRACTURE; SUBBLOCKY TO SUBPLATY; DULL EARTHY OCCASIONALLY SPARKLY LUSTER WITH INTERBEDDED MICA; SILTY TO GRITTY TEXTURE; COMPOSED OF 5C~ SILT, 20~ OF CLAYSTONE, 30~ OF VERY FINE SAND: 8870' SAND = CLEAR, TRANSLUCENT WHITE; .LIGHT TO DARK GRAY; VERY FINE TO MEDIUM OCCASIONALLY LOWER COARSE; SUBROUNDED TO ROUNDED; WELL SORTED OCCASIONALLY VERY WELL SORTED; LOCAL CLAYEY MATRIX, DOMINANTLY GRAIN SUPPORT; SCATTERED FINE PIECES OF MICA; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS.. 8910' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY; FIRM TO OCCASIONALLY SOFT; DULL TO EARTHY LUSTER; GRAINY TO SMOOTH TEXTURE; NON TO SLIGHTLY CALCAREOUS; AMORPHOUS LOCAL MUSHY; MINOR PART IS VERY SILTY; SCATTERED FINE PIECES OF MICA AND PYRITE FINE GRAINS; NO OIL. 8940' COAL = BLACK OCCASIONALLY LIGHT BROWNISH SPOTS; FIRM; BRITTLE TO VERY BRITTLE; IRREGULAR FRACTURE HABIT; SUBFISSILE TO FISSILE; LIGNITE TO BITUMINOUS; RESINOUS LUSTER; BLOCKY, SPLINTERY OCCASIONALLY PLATY CUTTINGS. 8970' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY TO DARK GRAY; SIZE RANGES FROM VERY FINE TO FINE OCCASIONALLY MEDIUM TO COARSE; SUBANGULAR TO SUBROUNDED; MODERATELY TO WELL SORTED; HARD; LOCAL CLAY MATRIX DOMINANTLY GRAIN SUPPORT; 90~ QUARTZ AND 1C~ DARK METAMORPHIC/IGNEOUS LITHICS. 9010' COAL = BLACK TO BROWNISH BLACK TO DUSKY BROWN; FIRM; BRITTLE TO VERY BRITTLE~ FISSILE; LIGNITE TO BITUMINOUS; SMALL IRREGULAR FRACTURES; RESINOUS LUSTER; SUBBLOCKY SPLINTERY OCCASIONALLY PLATY CUTTINGS HABIT. 9040' SAND = CLEAR, TRANSLUCENT. WHITE, LIGHT TO DARK GRAY; VERY FINE TO UPPER FINE OCCASIONALLY MEDIUM AND COARSE; HARD; MODERATELY TO WELL SORTED; SUBROUNDED TO ROUNDED OCCASIONALLY SUBANGULAR; SCATTERED FINE MICA FRAGMENTS; PYRITE GRAINS AND SMALL CHUNKS; NO OIL. 9070' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY; SOFT OCCASIONALLY FIRM; SMOOTH OCCASIONALLY GRAINY TEXTURE; NON TO SLIGHTLY CALCAREOUS; LUMPY HABIT OCCASIONALLY AMORPHOUS; LOCAL SILTY TO VERY SILTY; SILTY TO GRITTY TEXTURE. 9100' COAL = BLACK TO DUSKY BROWN; FIRM; COMMON BRITTLE; SUBFISSILE TO FISSILE; SMALL IRREGULAR FRACTURES; GRADE BETWEEN. LIGNITE AND BITUMINOUS; RESINOUS LUSTER; BLOCKY TO SUBBLOCKY, SPLINTERY OCCASIONALLY PLATY CUTTINGS. 9140' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, BLACK; VERY FINE TO MEDIUM GRAIN, DOMINANTLY VERY FINE TO FINE GRAIN; SUBANGULAR TO SUBROUND; WELL SORTED; COMPOSED OF 70~ QUARTZ, $0~ IGNEOUS AND METAMORPHIC LITHICS; OCCASIONAL CALCITE GRAINS; OCCASIONAL COAL FRAGMENTS; NON TO SLIGHTLY CALCAREOUS; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 9200' CLAYSTONE = LIGHT TO MEDIUM BROWNISH GRAY, PALE YELLOWISH BROWN; VERY SOFT TO OCCASIONALLY FIRM; MUSHY TO OCCASIONALLY BRITTLE; DOMINANTLY AMORPHOUS, OCCASIONALLY PLATY CUTTINGS; DULL, EARTHY TO OCCASIONALLY SLIGHTLY RESINOUS LUSTER; SMOOTH TO SILTY TEXTURE; NON TO MODERATELY CALCAREOUS; LOCALLY SILTY, GRADING TO SILTSTONE IN PART; SCATTERED TO COMMON CARBONACEOUS SPECKS AND STREAKS; NO OIL INDICATORS. NOTE: = ABUNDANT CALCIUM CARBONATE ADDITIVE IN SAMPLE: WHITE; CHALKY APPEARANCE; SMALL OVOID SHAPE; FAST ACID REACTION; COMMONLY APPEARS WITH LIGHT BROWN STAIN ON OUTER SURFACES. 9300' C:LAYSTONE = MEDIUM GRAY WITH SLIGHTLY OLIVE HUES; SOFT; MUSHY TO CRUMBLY; SMALL IRREGULAR AND SUBBLOCKY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO GRAINY TEXTURE; NON TO MODERATELY CALCAREOUS; LOCALLY SILTY; STRUCTURELESS; NO OIL INDICATORS. 93,40' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY, OCCASIONALLY BLACK; GRAINS RANGE FROM VERY FINE TO FINE; WELL SORTED; SUBANGULAR TO SUBROUND; 70-80% QUARTZ, 20-80% IGNEOUS AND METAMORPHIC LITHICS; NON TO SLIGHTLY CALCAREOUS; ESTIMATED FAIR VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 9380' SILTSTONE = MEDIUM GRAY TO MEDIUM BROWNISH GRAY; SOFT TO SLIGHTLY FIRM; MUSHY TO CRUMBLY; SUBBLOCKY CU'FI'INGS WITH ROUNDED EDGES; DULL LUSTER WITH SCATTERED SPARKLES; GRITTY TEXTURE; NON TO MODERATELY CALCAREOUS; LOCALLY COMMON VERY FINE TO FINE SAND GRAINS; MICRO MICACEOUS IN PART; NO OIL INDICATORS. 9420' TUFF = (TRACE AMOUNTS ONLY) LIGHT GRAY WITH SLIGHT BLUISH HUES; SOFT; SMALL FLAKY CUTTINGS; WAXY LUSTER; SMOOTH TO SLIGHTLY GRAINY TEXTURE; OCCASIONAL STREAKS OF LIGHT TO MEDIUM GRAY ASH; OCCASIONAL VOLCANIC GLASS SHARDS. 9670' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY; GRAINS RANGE FROM VERY FINE TO FINE, RARELY MEDIUM; MODERATELY WELL SORTED; SUBANGULAR TO SUBROUND; COMPOSED OF 70% QUARTZ, 80% LITHICS; SCATTERED CALCITE CHUNKS; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL. 9510' SILTSTONE = LIGHT TO MEDIUM GRAY, OCCASIONALLY WITH SLIGHT BROWNISH HUES; SOFT TO SLIGHTLY FIRM; IRREGULAR TO SUBBLOCKY CUTTINGS; DULL LUSTER WITH SCATI'ERED SPARKLES; GRI'KI'Y TEXTURE; SCATTERED TO COMMON CARBONACEOUS SPECKS; OCCASIONALLY MICROFINE MICA; TRACE AMOUNTS LIGHT YELLOW SAMPLE FLUORESCENCE; PALE YELLOW CUT FLUORESCENCE; NO OIL VISIBLE IN WHITE LIGHT. 9560' CLAYSTONE = MEDIUM TO DARK GRAYISH BROWN, OCCASIONALLY WITH SLIGHT OLIVE HUES; SOFT; MUSHY TO CRUMBLY; IRREGULAR TO OCCASIONALLY SUBBLOCKY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO MODERATELY GRAINY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; LOCALLY VERY SILTY, GRADING IN PART TO SILTSTONE; TRACE AMOUNT LIGHT YELLOW SAMPLE FLUORESCENCE; FAINT LIGHT YELLOW CUT FLUORESCENCE; FAINT LIGHT YELLOW RESIDUAL FLUORESCENCE; NO OTHER OIL INDICATORS. 9620' SAND = CLEAR, TRANSLUCEI',,rr WHITE, LIGHT GRAY; GRAINS RANGE FROM VERY FINE TO FINE; WELL SORTED; SUBANGULAR TO SUBROUND; 80% QUARTZ, 20% IGNEOUS AND METAMORPHIC LITHICS; SCATTERED CHUNKS PYRITE; OCCASIONALLY FRAGMENTS CALCITE; UNCONSOLIDATED; NO EVIDENCE OF MATRIX OR CEMENTATION; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; NO OIL INDICATORS. 9670' SHALE = MODERATE TO DARK GRAYISH BROWN; SOFT TO SLIGHTLY FIRM; CRUMBLY; TABULAR AND PLATY CUTTINGS; DULL LUSTER; ROUGH SURFACE TEXTURE; SILTY IN PART; SCATTERED CARBONACEOUS SPECKS; NON CALCAREOUS; POOR TO MODERATE FISSILITY; TRACE LIGHT YELLOW SAMPLE FLUORESCENCE; LIGHT YELLOW SLOW CUT FLUORESCENCE; LIGHT YELLOW RESIDUAL CUT FLUORESCENCE; NO OIL VISIBLE IN WHITE LIGHT. 9730' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY OCCASIONALLY DARK GRAY; GRAIN SIZE RANGES FROM VERY FINE TO FINE; MODERATELY TO WELL SORTED; SUBANGULAR TO SUBROUNDED OCCASIONALLY ROUNDED; OCCASIONALLY LARGER- SIZED GRAINS UP TO GRANULES; HARD; UNCONSOLIDATED; ONLY LOCAL EVIDENCE OF CLAY MATRIX, GRAIN SUPPORT; 90% QUARTZ, 10% METAMORPHIC/IGNEOUS LITHICS; SCATTERED PYRITE, MICA, CALCITE; SLIGHT SPOTI'Y MINERAL FLUORESCENCE. 9780' COAL = BLACK OCCASIONALLY BROWNISH BLACK; GRADE LIGNITE TO BITUMINOUS; FIRM; BRITTLE; SMALL IRREGULAR FRACTURES; FISSILE TO SUBFISSILE; RESINOUS LUSTER; ROUGH TO EARTHY TEXTURE; SUBBLOCKY, SPLINTERY OCCASIONALLY ELONGATED. 9820' SHALE - MODERATE TO DARK GRAYISH BROWN; FIRM OCCASIONALLY SLIGHTLY SOFT; CRUMBLY; OCCASIONALLY BRI'FI'LE; TABULAR PLATY CU'FrlNGS HABIT; DULL EARTHY LUSTER; ROUGH TO GRITTY TEXTURE; SILTY IN PART; COMMON SCATTERED FINE CARBONACEOUS SPECKS; NON TO SLIGHTLY CALCAREOUS; SUBFISSILE; SCATTERED PYRITE FRAGMENTS AND MICA; SLIGHT MINERAL FLUORESCENCE; LIGHT YELLOW SLOW CUT FLUORESCENCE; NO OIL VISIBLE IN WHITE LIGHT. 9880' SILTSTONE = LIGHT GRAY TO MEDIUM GRAY TO LIGHT BROWNISH GRAY; SLIGHTLY SOFT TO FIRM; CRUMBLY OCCASIONALLY MUSHY; BLOCKY TO SUBBLOCKY; CUTrlNGS SPLINTERY OCCASIONALLY HAVE ROUNDED EDGES; DULL EARTHY LUSTER~ SCA'I-rERED CARBONACEOUS SPECKS~ GRITTY TO ROUGH TEXTURE; SLIGHTLY CALCAREOUS; LOCAL VERY FINE SAND GRAINS; NO OIL INDICATORS.. 9920' SAND = CLEAR; TRANSLUCENT WHITE; LIGHT GRAY TO OCCASIONALLY DARK GRAY; VERY FINE TO UPPER FINE OCCASIONALLY LOWER MEDIUM; HARD; MODERATELY TO WELL SORTED; SUBANGULAR TO SUBROUNDED; UNCONSOLIDATED~ LOCAL CLAYEY MATRIX; DOMINANTLY GRAIN SUPPORT; SCATTERED CHUNKS OF PYRITE; OCCASIONALLY MICA; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 9970' COAL = BROWNISH BLACK TO BLACK; GRADE OF LIGNITE TO BITUMINOUS; FIRM TO VERY FIRM; BRITTLE; SMALL IRREGULAR FRACTURES; FISSILE TO SUBFISSILE. 9990' CLAYSTONE = MEDIUM TO DARK GRAYISH BROWN; SOFT TO OCCASIONALLY FIRM; CRUMBLY TO OCCASIONALLY LOCAL MUSHY; AMORPHOUS TO OCCASIONALLY SUBBLOCKY; MODERATELY GRAINY TO SMOOTH TEXTURE; LOCALLY VERY SILTY; MICA IS SCATTERED THROUGHOUT THE SAMPLE; OCCASIONALLY CHUNKS OF PYRITE; CALCITE MINERAL FLUORESCENCE; FAINT LIGHT YELLOW CUT FLUORESCENCE; MINOR BUBBLING WHEN ACID IS ADDED; WEAK LIGHT YELLOW RESIDUAL FLUORESCENCE. 10050' SHALE = MEDIUM TO DARK GRAYISH BROWN; FIRM TO OCCASIONALLY SLIGHTLY SOFT; CRUMBLY; TABULAR PLATY HABIT OCCASIONALLY ELONGATED WITH SHARP EDGES; DULL TO EARTHY LUSTER; ROUGH TO GRITTY SURFACE; SCATI'ERED PYRITE CHUNKS; NON TO SLIGHTLY CALCAREOUS; MODERATELY FISSILITY; VERY WEAK LIGHT YELLOW FLUORESCENCE; FAINT LIGHT YELLOW CUT FLUORESCENCE AND WEAK MINOR BUBBLING IN HCL; NO OIL VISIBLE IN WHITE LIGHT. 10100' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY TO OCCASIONALLY DARK GRAY; SIZE RANGES FROM VERY FINE TO FINE TO LOWER MEDIUM; HARD; MODERATELY TO WELL SORTED; LOW SURF ABRASION; SUBANGULAR TO SUBROUNDED; UNCONSOLIDATED; LOCAL CLAYEY MATRIX, NO CEMENTATION; DOMINANTLY GRAIN SUPPORT; COMPOSED OF 90% QUARTZ AND 10% OF METAMORPHIC/IGNEOUS LITHICS; GOOD ESTIMATED VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS.. 10150' SHALE = MEDIUM BLUISH GRAY TO DARK GREENISH GRAY; FIRM TO OCCASIONALLY SLIGHTLY SOFT; CRUMBLY; BRITTLE; TABULAR PLATY HABIT; COMMON CARBONACEOUS SPECKS; DULL TO EARTHY LUSTER; FLAKY OCCASIONALLY ELONGATED AND SHARP- EDGED; COMMON SCATTERED PYRITE CHUNKS; COMMON SCATTERED FINE MICA; OCCASIONALLY FISSILE; VERY WEAK LIGHT YELLOW FLUORESCENCE; SLOW FAINT TO LIGHT YELLOW RESIDUAL FLUORESCENCE CUT; MINOR BUBBLING IN HCL; NO OIL VISIBLE IN WHITE LIGHT; WEAK SPOI-rY MINERAL FLUORESCENCE IN SAMPLE. 10220' SILTSTONE '- LIGHT GRAY TO MEDIUM GRAY TO LIGHT BROWN; FIRM OCCASIONALLY SLIGHTLY SOFT; CRUMBLY; FIRM TO BRITTLE; BLOCKY TO SUBBLOCKY OCCASIONALLY SPLINTERY; DULL EARTHY LUSTER; COMMON CARBONACEOUS SPECKS; GRI'I-I'Y TO ROUGH TEXTURE; NON TO SLIGHTLY CALCAREOUS; LOCAL VERY FINE-GRAINED SAND; NO OIL. 10260' CLAYSTONE = MEDIUM GRAY TO MEDIUM DARK GRAY; SOFT TO OCCASIONALLY FIRM; CRUMBLY; ONLY LOCAL MUSHY AND AMORPHOUS; COMMON LUMPY; MODERATELY GRAINY TO SMOOTH TEXTURE; LOCALLY VERY SILTY; COMMON SCAI-rERED MEDIUM CHUNKS OF PYRITE AND FINE MICA; CALCITE MINERAL FLUORESCENCE; FAINT YELLOW CUT FLUORESCENCE; WEAK LIGHT YELLOW RESIDUAL FLUORESCENCE. 10300' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY TO OCCASIONALLY DARK GRAY TO MEDIUM GRAYISH BLACK; SIZE RANGES FROM VERY FINE TO MEDIUM TO OCCASIONALLY MEDIUM-COARSED; HARD; MODERATELY TO WELL SORTED; ROUNDED TO SUBROUNDED OCCASIONALLY SUBANGULAR; NO EVIDENCE OF CLAY MATRIX OR CEMENT; DOMINANTLY GRAIN SUPPORT; POORLY CONSOLIDATED; SCA'I-I'ERED CHUNKS OF PYRITE AND VERY FINE MICA; COMPOSED OF 90% QUARTZ AND 1 0% OF METAMORPHIC/IGNEOUS LITHICS; GOOD ESTIMATED POROSITY AND PERMEABILITY; NO OIL VISIBLE IN WHITE LIGHT. 10370' SHALE = MEDIUM GRAY TO DARK GREENISH GRAY; FIRM TO OCCASIONALLY SLIGHTLY SOFT; CRUMBLY; FIRM; SLIGHTLY BRITTLE; TABULAR PLATY HABIT; FLAKY OCCASIONALLY ELONGATED CU'I-I'INGS WITH SLIGHTLY ROUNDED EDGES OCCASIONALLY SPLINTERY; COMMON CARBONACEOUS SPECKS; DULL TO EARTHY LUSTER; COMMON 28 SCATI'ERED PYRITE CHUNKS; FISSILE TO SUBFISSILE; VERY WEAK YELLOW FLUORESCENCE; VERY SLOW FAINT TO LIGHT YELLOW RESIDUAL FLUORESCENCE CUT; MINOR BUBBLES IN HCL; NO OIL VISIBLE IN WHITE LIGHT. 10420' SILTSTONE = LIGHT GRAY TO LIGHT BROWN; FIRM OCCASIONALLY SLIGHTLY SOFT; CRUMBLY; BRITTLE; BLOCKY TO SUBBLOCKY HABIT; DULL LUSTER; COMMON CARBONACEOUS SPECKS; GRITTY TEXTURE; NON CALCAREOUS~ LOCAL VERY FINE GRAINED SAND. 10460' SHALE = MEDIUM GRAY TO BLUISH GRAY TO OCCASIONALLY DARK GREENISH GRAY; FIRM TO OCCASIONALLY SOFT; CRUMBLY; BRITTLE; TABULAR PLATY HABIT; COMMON CARBONACEOUS SPECKS: DULL TO EARTHY LUSTER; FLAKY, NODULAR OCCASIONALLY ELONGATED CUTTINGS; COMMON SCATTERED PYRITE CHUNKS; OCCASIONALLY MICA; FISSILE TO SUBFISSILE; VERY WEAK LIGHT YELLOW FLUORESCENCE; VERY SLOW REACTION TO ACID, FAINT YELLOW RESIDUAL FLUORESCENCE CUT~ NO OIL VISIBLE IN WHITE LIGHT. 10580' SAND -- CLEAR, TRANSLUCENT WHITE, LIGHT GRAY TO OCCASIONALLY DARK GRAY; VERY FINE TO FINE TO OCCASIONALLY MEDIUM-COARSED; HARD; MODERATELY SORTED; SUBROUNDED TO SUBANGULAR; NO CLAY MATRIX OR CEMENT; DOMINANTLY GRAIN SUPPORT; POOR CONSOLIDATION; COMMON SCATTERED PYRITE CHUNKS; 90% QUARTZ AND 10% METAMORPHIC LITHICS ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; FAINT LIGHT YELLOW SLOW CUT FLUORESCENCE; LIGHT YELLOW RESIDUAL CUT FLUORESCENCE; NO VISIBLE OIL IN WHITE LIGHT. 10590' SILTSTONE = LIGHT BROWNISH GRAY; SOFT TO FIRM; CRUMBLY; DULL LUSTER; GRITTY TEXTURE; NON TO VERY SLIGHTLY CALCAREOUS; INTERBEDDED WITH VERY FINE SANDSTONE AND SHALE; SCATTERED TO COMMON CARBONACEOUS SPECKS; SCATTERED MICA; CONTINUED TRACE OIL SHOWS. 10650' SHALE = MEDIUM TO DARK BROWNISH GRAY WITH SLIGHT OLIVE HUES; SOFT TO OCCASIONALLY SLIGHTLY FIRM; MUSHY TO CRUMBLY; SMALL IRREGULAR TABULAR AND PLATY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO MODERATELY GRAINY TEXTURE; SMOOTH TO ROUGH SURFACE TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; LOCALLY SILTY; INTERBEDDED WITH SILTSTONE; SCATTERED TO COMMON CARBONACEOUS SPECKS; TRACE LIGHT YELLOW SAMPLE FLUORESCENCE; WEAK LIGHT YELLOW SLOW CUT FLUORESCENCE; WK LIGHT YELLOW RESIDUAL CUT FLUORESCENCE; NO OTHER OIL INDICATORS. 10700' SAND = CLEAR, MODERATELY BROWN, TRANSLUCENT WHITE; VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE GRAINED; MODERATELY WELL SORTED; SUBANGULAR TO SUBROUND; 70% QUARTZ, 30% LITHICS; RARE CHERT; SCATTERED CARBONACEOUS MATERIAL; SILTY; ARGILLACEOUS; ASSUME MATRIX SUPPORTED; ESTIMATED POOR TO FAIR VISUAL POROSITY AND PERMEABILITY; TRACE LIGHT YELLOW SAMPLE FLUORESCENCE; FAINT LIGHT YELLOW SLOW CUT FLUORESCENCE; WEAK LIGHT YELLOW RESIDUAL CUT. FLUORESCENCE; NO OTHER OIL INDICATORS. 10760' SILTSTONE = MEDIUM TO DARK BROWNISH GRAY; SOFT TO SLIGHTLY FIRM; MUSHY TO CRUMBLY; IRREGULAR AND SUBBLOCKY CUTTINGS; DULL LUSTER WITH OCCASIONALLY SPARKLES; GRITTY, GRAINY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; COMMON VERY FINE COMMON CARBONACEOUS MATERIAL; TRACE LIGHT YELLOW SAMPLE FLUORESCENCE; WEAK LIGHT YELLOW SLOW CUT FLUORESCENCE; WEAK LIGHT YELLOW RESIDUAL FLUORESCENCE; RARE MODERATE BROWN OIL STAINING ON SURFACES. 10850' SHALE = MEDIUM TO DARK GRAYISH BROWN; SOFT TO OCCASIONALLY FIRM; CRUMBLY TO OCCASIONALLY SLIGHTLY BRITTLE; IRREGULAR, TABULAR, BLOCKY TO FINE SAND GRAINS; SCATTERED TO AND PLATY CUTTINGS; DULL, EARTHY LUSTER; SMOOTH TO MODERATELY GRAINY TEXTURE; NON CALCAREOUS; LOCALLY SILTY, GRADING IN PART TO AND INTERBEDDED WITH SILTSTONE; SCATTERED VERY FINE MICA; POOR TO MODERATELY FISSILE; CONTINUED TRACE OIL SHOWS. 10890' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO MEDIUM GRAY, OCCASIONALLY DARK GREEN, OCCASIONALLY DARK RED; GRAINS RANGE FROM VERY FINE LOWER TO MEDIUM; MODERATELY SORTED; ANGULAR TO ROUND, DOMINANTLY SUBANGULAR TO SUBROUND; 70% QUARTZ, 80% LITHICS; SCATTERED CHUNKS OF MICROCRYSTALLINE PYRITE; SCATTERED TO OCCASIONALLY COMMON FRAGMENTS OF CALCITE; TOTALLY UNCONSOLIDATED IN SAMPLE; ESTIMATED FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; TRACE LIGHT YELLOW SAMPLE FLUORESCENCE; FAINT LIGHT YELLOW SLOW CUT FLUORESCENCE; LIGHT YELLOW WEAK RESIDUAL CUT FLUORESCENCE; NO OTHER OIL INDICATORS. 10960' SHALE = MEDIUM TO DARK BROWNISH GRAY, OCCASIONALLY WITH SLIGHT OLIVE HUES; SOFT TO OCCASIONALLY SLIGHTLY FIRM; CRUMBLY TO OCCASIONALLY SLIGHTLY BRITTLE; IRREGULAR, PLATY, BLOCKY AND TABULAR CUTTINGS; DULL, EARTHY LUSTER WITH FEW SPARKLES; SMOOTH TO MODERATELY GRAINY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; SCATTERED VERY FINE MICA; LOCALLY SILTY, GRADING TO AND INTERBEDDED WITH SILTSTONE. 11010' SAND = OVERALL LIGHT TO MEDIUM BROWNISH GRAY; CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY; LIGHT TO MODERATELY BROWN; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY VERY FINE TO FINE; ANGULAR TO ROUND, DOMINANTLY SUBANGULAR TO SUBROUND; MODERATELY WELL SORTED; COMPOSED OF 60% QUARTZ, 40% LITHICS; SCATTERED TO OCCASIONALLY COMMON CALCITE FRAGMENTS; SCATTERED FRAGMENTS OF MICROCRYSTALLINE PYRITE; SILTY; SLIGHTLY CALCAREOUS; POOR TO FAIR ESTIMATED VISUAL POROSITY AND PERMEABILITY; CONTINUED TRACE OF LIGHT YELLOW SAMPLE FLUORESCENCE; LIGHT YELLOW SLOW CUT FLUORESCENCE; WEAK LIGHT YELLOW RESIDUAL FLUORESCENCE; NO OTHER OIL INDICATORS. 11080' SHALE -- MEDIUM GRAY TO DARK GREENISH GRAY; SOFT TO OCCASIONALLY FIRM; MOSTLY BRII-[LE; SUBFISSILE; CRUMBLY; IRREGULAR; PLATY, TABULAR OCCASIONALLY BLOCKY TO SUBBLOCKY CUTTINGS; DULL EARTHY LUSTER OCCASIONALLY SPARKLY DUE TO SCATTERED CARBONACEOUS SPECKS; SMOOTH TO MODERATELY GRAINY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; SCATTERED PYRITE CHUNKS; OCCASIONALLY SCATTERED FINE MICA; CONTINUED VERY LIGHT YELLOW SAMPLE FLUORESCENCE; WEAK LIGHT YELLOW CUT FL; WEAK LIGHT YELLOW RESIDUAL CUT FLUORESCENCE; NO OIL VISIBLE IN WHITE LIGHT. 11150' SILTSTONE = MEDIUM GRAY TO PALE YELLOWISH BROWN; FIRM TO OCCASIONALLY SOFT; DENSE; CRUMBLYi MOSTLY BRITTLE; IRREGULAR PLATY AND BLOCKY CUTTINGS HABIT; DULL LUSTER WITH OCCASIONALLY SPARKLES~ GRI'FI'Y GRAINY TEXTURE~ NON TO VERY SLIGHTLY CALCAREOUS; COMMON VERY FINE-GRAINED SANDS; COMMON CARBONACEOUS MATERIAL; TRACE LIGHT YELLOW VERY SLOW CUT FLUORESCENCE~ WEAK LIGHT YELLOW RESIDUAL FLUORESCENCE; NO OTHER OIL INDICATORS.. 11210' SAND = LIGHT GRAY TO MEDIUM TO OCCASIONALLY DARK GRAY, TRANSLUCENT WHITE OCCASIONALLY CLEAR; SIZE RANGES FROM VERY FINE TO UPPER FINE OCCASIONALLY MEDIUM~ HARD; MODERATELY TO OCCASIONALLY WELL SORTED~ SUBROUNDED TO SUBANGULAR; 80% QUARTZ 20~ METAMORPHIC/IGNEOUS LITHICS; COMMON SCATTERED VERY COARSE CHUNKS OF PYRITE; OCCASIONALLY MICA~ WEAK LIGHT YELLOW SPOTTY SAMPLE FLUORESCENCE (<1C~); SLOW LIGHT YELLOW TO FAINT CUT FLUORESCENCE; WEAK LIGHT YELLOW RESIDUAL FLUORESCENCE; OCCASIONALLY LOCAL INTENSE BUBBLING IN 10% HCL. 11270' SHALE '- MEDIUM GRAY TO BROWNISH GRAY WITH OCCASIONALLY OLIVE HUES; SOFT OCCASIONALLY FIRM; CRUMBLY TO BRITTLE; BLOCKY TO SUBBLOCKY OCCASIONALLY ELONGATED WITH ROUNDED EDGES; SMOOTH TO SLIGHTLY GRAINY TEXTURE; NON TO SLIGHTLY CALCAREOUS; EARTHY LUSTER OCCASIONALLY SPARKLY DUE TO SCATTERED CARBONACEOUS SPECKS; LOCALLY SILTY TO VERY SILTY; SCATTERED PYRITE COARSE CHUNKS; OCCASIONALLY MICA IN SAMPLE; CONTINUED SLIGHT YELLOW FLUORESCENCE. 11320' SAND: LIGHT GRAY TO MEDIUM GRAINED OCCASIONALLY DARK GRAY; TRANSLUCENT WHITE, CLEAR; SIZE RANGES FROM VERY FINE TO MEDIUM OCCASIONALLY LOWER COARSE; MODERATELY SORTED; HARD; SUBROUNDED TO ROUNDED OCCASIONALLY SUBANGULAR; NO EVIDENCE OF CLAY MATRIX OR CEMENTATION; SCATTERED CHUNKS OF PYRITE; OCCASIONALLY MICA; WEAK LIGHT YELLOW SPOTTY <1C~ OF SAMPLE FLUORESCENCE; ALSO WEAK LIGHT YELLOW RESIDUAL CUT FLUORESCENCE; NO OIL VISUAL IN WHITE LIGHT. 11380' SHALE = MEDIUM GRAY TO BROWNISH GRAY WITH OCCASIONALLY OLIVE HUES; SOFT TO OCCASIONALLY FIRM; CRUMBLY TO OCCASIONALLY MUSHY; BRITTLE; BLOCKY TO SUBBLOCKY OCCASIONALLY ELONGATED; ROUNDED EDGES; DULL EARTHY LUSTER OCCASIONALLY SPARKLY DUE TO SCATTERED CARBONACEOUS SPECKS; SMOOTH TO SLIGHTLY GRAINY TEXTURE; NON-SLIGHTLY CALCAREOUS; LOCAL VERY SILTY; OCCASIONALLY SCATTERED PYRITE CHUNKS; SAMPLE FLUORESCENCE LIGHT YELLOW SPOI-rY COVERS 10-30% OF SAMPLE; LIGHT YELLOW TO YELLOW MODERATE CUT; LIGHT YELLOW RESIDUAL FLUORESCENCE; SMALL AMOUNT OF LIGHT BROWNISH OIL STAINING IN SAMPLES. 11440' SAND = TRANSLUCENT WHITE, LIGHT GRAY TO DARK GRAY; FINE TO LOWER MEDIUM OCCASIONALLY COARSE; HARD; MODERATELY TO POORLY SORTED; LOCAL SMALL AMOUNT OF CLAY MATRIX, DOMINANTLY DARK GREENISH GRAY; CRUMBLY; BRITTLE; BLOCKY TO SUBBLOCKY OCCASIONALLY ELONGATED; GRITTY TEXTURE; SMOOTH TO GRAINY; ROUNDED EDGES; EARTHY LUSTER OCCASIONALLY SPARKLY DUE TO SCATTERED CARBONACEOUS SPECKS; LOCAL SILTY TO VERY SILTY; SCATTERED PYRITE CHUNKS; LIGHT YELLOW 5-20% OF SAMPLE SPOTTY FLUORESCENCE; FAINT YELLOW SLOW CUT FLUORESCENCE; FAINT TO LIGHT YELLOW RESIDUAL FLUORESCENCE. 3! 11490' SHALE = MEDIUM GRAY TO BROWNISH GRAY OCCASIONALLY DARK GREENISH GRAY; CRUMBLY; BRITTLE; BLOCKY TO SUBBLOCKY OCCASIONALLY ELONGATED; GRITTY TEXTURE; SMOOTH TO GRAINY; ROUNDED EDGES; EARTHY LUSTER OCCASIONALLY SPARKLY DUE TO SCATTERED CARBONACEOUS SPECKS; LOCALLY SILTY TO VERY SILTY; SCATTERED PYRITE CHUNKS; LIGHT YELLOW 5-20% OF SAMPLE SPOTTY FLUORESCENCE; FAINT YELLOW SLOW CUT FLUORESCENCE; FAINT TO LIGHT YELLOW RESIDUAL FLUORESCENCE. 11540' SAND = TRANSLUCENT WHITE OCCASIONALLY CLEAR, LIGHT TO DARK GRAY; FINE TO UPPER MEDIUM OCCASIONALLY CRS; MODERATE TO WELL SORTED; HARD; SUBROUNDED TO ROUNDED; 90% QUARTZ, 10% METAMORPHIC/IGNEOUS LITHICS; SCATI'ERED FRAGMENTS OF MICROCRYSTALLINE PYRITE; SILTY; SLIGHTLY CALCAREOUS; FAIR ESTIMATED VISUAL SAMPLE FLUORESCENCE LIGHT YELLOW SPOTTY COVERS 10-80% OF SAMPLE; LIGHT YELLOW TO YELLOW MODERATELY CUT; LIGHT YELLOW RESIDUAL FLUORESCENCE; SMALL AMOUNT POROSITY AND PERMEABILITY; CONTINUED TRACE OF LIGHT YELLOW SAMPLE SLIGHT SPOTTY FLUORESCENCE; NO OIL IS VISIBLE IN WHITE LIGHT. 11590' SILTSTONE = LIGHT BROWN TO OCCASIONALLY MODERATE BROWN; FIRM OCCASIONALLY SOFT; DENSE; CRUMBLY; BRITTLE; IRREGULAR BLOCKY PLATY CUTTINGS; EARTHY LUSTER OCCASIONALLY SPARKLY; SCATTERED CARBON SPECKS; COMMON VERY FINE-GRAINED SAND. 11620' SHALE = LIGHT TO MEDIUM GRAY OCCASIONALLY BROWNISH AND GREENISH GRAY; FIRM TO SOFT; CRUMBLY; SLIGHTLY BRITTLE; OCCASIONALLY FISSILE; BLOCKY TO SUBBLOCKY TO OCCASIONALLY ELONGATED WITH ROUNDED EDGES; SMOOTH TO SLIGHTLY GRAINY TEXTURE; NON TO SLIGHTLY CALCAREOUS; EARTHY LUSTER OCCASIONALLY SPARKLY DUE TO SCATTERED CARBONACEOUS SPECKS; LOCAL SILTY; SCATTERED PYRITE CHUNKS; CONTINUED LIGHT YELLOW SPOTTY MINOR FLUORESCENCE AND CUT FLUORESCENCE. 11670' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY; SIZE RANGES FROM UPPER FINE TO LOWER COARSE; SUBROUNDED- SUBANGULAR; MODERATELY-WELL SORTED; DOMINANTLY QUARTZ, COMMON GLAUCONITE, SCATTERED FRAGMENTS MICROCRYSTALLINE PYRITE; 20-25% FAINT LIGHT YELLOW SAMPLE FLUORESCENCE; FAST MODERATELY BRIGHT LIGHT YELLOW TRANSLUCENT CUT FLUORESCENCE; DULL YELLOW GOLD RESIDUAL FLUORESCENCE COMMON LIGHT TO MODERATELY BROWN OIL STAINING; TRACE OIL ON SURFACE OF MUD. 11740' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY, MODERATELY GREEN; VERY FINE TO COARSE, DOMINANTLY FINE TO MEDIUM GRAINED; MODERATELY SORTED; ANGULAR TO SUBROUND; 80% QUARTZ, 20% LITHICS; SCATTERED GLAUCONITE; NON CALCAREOUS; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; 10-20% LIGHT YELLOW SAMPLE FLUORESCENCE, UNIFORM VERY FAINT PALE YELLOW SAMPLE FLUORESCENCE; INSTANT LIGHT YELLOW SLIGHTLY MILKY CUT FLUORESCENCE; DULL GOLD RESIDUAL FLUORESCENCE; COMMON LIGHT TO MODERATELY BROWN OIL STAIN; TRACE OF OIL ON SURFACE OF MUD. 11800' SHALE = MODERATE BROWN, LIGHT TO DARK GRAY, OCCASIONALLY SLIGHTLY REDDISH HUES OF BROWN; SOFT TO SLIGHTLY FIRM; CRUMBLY TO SLIGHTLY BRI'I-I'LE; TABULAR, AND PLATY CUTTINGS; DULL LUSTER WITH COMMON SPARKLES; SMOOTH TO SLIGHTLY GRITTY; MICRO MICACEOUS IN PART; NON CALCAREOUS; OCCASIONALLY SLIGHTLY SILTY; MODERATELY TO VERY FISSILE; FAINT PALE YELLOW CUT FLUORESCENCE FROM CRUSHED SAMPLE IS ONLY OIL INDICATOR. 11860' SHALE = LIGHT TO DARK GRAY, MODERATE TO DARK BROWN, OCCASIONALLY DARK REDDISH BROWN; SOFT TO SLIGHTLY FIRM; CRUMBLY TO OCCASIONALLY SLIGHTLY BRITTLE; TABULAR, BLOCKY AND PLATY HABIT; DULL, EARTHY LUSTER WITH SCATTERED TO COMMON MICRO SPARKLES; DOMINANTLY SMOOTH, OCCASIONALLY SLIGHTLY GRAINY; SCA'I-I'ERED TO COMMON MICRO FINE MICA; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; LOCALLY SLIGHTLY SILTY; MODERATE TO GOOD FISSILITY; FAINT PALE YELLOW CUT FLUORESCENCE FROM CRUSHED SAMPLE IS ONLY OIL INDICATOR. NOTE: ABUNDANT SAND CAVINGS FROM UPHOLE IN SAMPLES. 11950' SHALE: LIGHT GRAY TO MEDIUM DARK GRAY OCCASIONALLY VERY LIGHT GRAY, BROWNISH GRAY; FIRM TO VERY FIRM OCCASIONALLY SOFT; BRITTLE TO VERY BRITTLE] TABULAR OCCASIONALLY BLOCKY; PLATY ELONGATED HABIT; DULL EARTHY LUSTER; SPARKLES DUE TO SCATTERED CARBONACEOUS SPECKS AND OCCASIONALLY MICA; OCCASIONALLY SLIGHTLY FISSILE; LOCAL SLIGHTLY SILTY; SCATTERED PYRITE CHUNKS; FAINT LIGHT YELLOW FLUORESCENCE; MODERATELY FAINT YELLOW CUT FLUORESCENCE; WEAK LIGHT YELLOW RESIDUAL FLUORESCENCE. 12000' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT GRAY TO OCCASIONALLY DARK GRAY; FINE TO UPPER MEDIUM OCCASIONALLY COARSEN AND VERY COARSE; HARD; SUBANGULAR TO SUBROUNDED; OCCASIONALLY VERY WELL ROUNDED VERY COARSE WELL-POLISHED GRAINS; MODERATELY TO WELL SORTED; SCATTERED PYRITE CHUNKS; MOSTLY QUARTZ WITH VERY LITTLE AMOUNT OF METAMORPHIC AND IGNEOUS LITHICS; LESS THAN 15% LIGHT YELLOW SAMPLE FLUORESCENCE; FAINT TO LIGHT YELLOW FAST CUT FLUORESCENCE; DULL GOLD RESIDUAL FLUORESCENCE; NO OIL STAINS VISIBLE IN MUD AND SAMPLE. 12060' SHALE = LIGHT GRAY TO MEDIUM DARK GRAY TO BROWNISH GRAY; FIRM TO OCCASIONALLY HARD; BRITTLE TO SLIGHTLY BRITTLE; OCCASIONALLY FISSILE; TABULAR OCCASIONALLY SUBBLOCKY; PLATY ELONGATED HABIT; GRITTY TEXTURE; SCATTERED PYRITE CHUNKS; COMMON FINE MICA FLAKES ON SHALE; 1C~ SCATTERED MODERATE GREEN GLAUCONITE GRAINS AND OCCASIONALLY CHUNKS; DULL EARTHY LUSTER; COMMON SCATTERED SPARKLY CARBONACEOUS SPECKS; LOCAL SLIGHTLY SILTY; OCCASIONALLY SCATTERED CHUNKS OF SILTSTONE; FAINT TO LIGHT YELLOW SAMPLE FLUORESCENCE; WEAK FAINT TO LIGHT YELLOW FLUORESCENCE; NO OIL STAINS VISIBLE IN WHITE LIGHT IN SAMPLE. 121 60' SHALE = LIGHT TO DARK GRAY, DARK TO DUSKY GRAYISH BROWN; SOFT TO OCCASIONALLY SLIGHTLY FIRM; CRUMBLY TO OCCASIONALLY SLIGHTLY BRII-I'LE; POOR TO FAIR INDURATION; IRREGULAR, TABULAR AND PLATY CUTTINGS; DULL, EARTHY LUSTER WITH SCATTERED TO COMMON MICRO SPARKLES; DOMINANTLY SMOOTH TO OCCASIONALLY MODERATELY GRAINY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; LOCALLY SILTY, OCCASIONALLY GRADING TO SILTSTONE; SCATTERED TO COMMON MICROFINE MICA; SCA'KrERED TO COMMON CARBONACEOUS SPECKS; POOR TO MODERATE FISSILITY; CONTINUED MODERATELY BRIGHT LIGHT YELLOW CUT FLUORESCENCE, ONLY OIL INDICATOR. 12240' SAND = CLEAR, TRANSLUCENT WHITE OCCASIONALLY LIGHT GRAY; SIZE RANGES FROM MEDIUM TO LOWER COARSE; HARD; SUBROUNDED TO ROUNDED OCCASIONALLY WELL ROUNDED; MODERATELY POLISHED OCCASIONALLY SLIGHTLY PITTED; MODERATE TO LOW SURFACE ABRASION; LOCALLY CLAYEY STICKY MATRIX; DOMINANTLY GRAIN SUPPORT; MODERATELY TO WELL SORTED; COMPOSED OF QUARTZ; OCCASIONALLY PYRITE FRAGMENTS OR GRAINS; CONTINUED MODERATELY BRIGHT TO BRIGHT LIGHT YELLOW FLUORESCENCE CUT, THE ONLY OIL INDICATOR. 12310' SHALE = LIGHT TO DARK GRAY; DARK TO BROWNISH GRAY; SOFT TO FIRM; BRITTLE TO CRUMBLY; FAIR INDURATION; IRREGULAR PLATY TABULAR CUTTINGS HABIT; DULL EARTHY LUSTER; NODULAR OCCASIONALLY ELONGATED; NON TO SLIGHTLY CALCAREOUS; OCCASIONALLY GRADING TO SILTSTONE; SCATTERED CARBON SPECKS; COMMON SCAI-rERED GLAUCONITE GRAINS; CONTINUED MODERATELY BRIGHT TO BRIGHT LIGHT YELLOW CUT FLUORESCENCE, ONLY OIL INDICATOR. 12560' SHALE = LIGHT GRAY TO MEDIUM DARK GRAY OCCASIONALLY LIGHT TO MEDIUM BLUISH GRAY, DARK GRAY TO MEDIUM BROWNISH GRAY; SOFT TO OCCASIONALLY FIRM; POOR TO FAIR INDURATION; CRUMBLY TO OCCASIONALLY BRITTLE; IRREGULAR; PLATY TABULAR ELONGATED HABIT; DULL EARTHY LUSTER; COMMON SCAI-[ERED SPARKLES; COMMON CARBONACEOUS SPECKS; NON-SLIGHTLY CALCAREOUS; OCCASIONALLY SILTSTONE CHUNKS IN SAMPLE; OCCASIONALLY FISSILE; CONTINUED MODERATELY BRIGHT TO BRIGHT LIGHT YELLOW VERY FAST CUT FLUORESCENCE, NO OTHER OIL INDICATORS. 12420' SHALE = MEDIUM GRAY TO DARK GRAY OCCASIONALLY MEDIUM BLUISH GRAY TO BROWNISH GRAY WITH OLIVE HUES; FIRM TO OCCASIONALLY SOFT; FAIR INDURATION; BRITTLE TO CRUMBLY; IRREGULAR FRACTURES; PLATY TABULAR HABIT; DOMINANTLY ELONGATED SHAPE; OCCASIONALLY FISSILE TO SUBFISSILE; COMMON SCATTERED CARBONACEOUS SPECKS; OCCASIONALLY PYRITE CHUNKS IN SAMPLE; EARTHY TO OCCASIONALLY SPARKLY LUSTER; CONTINUED CUT FLUORESCENCE IN SAMPLE: MODERATELY BRIGHT LIGHT YELLOW, FAST; NO OTHER OIL INDICATOR. 12470' SAND: CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY; VERY FINE TO FINE OCCASIONALLY MEDIUM; SUBROUNDED TO ROUNDED OCCASIONALLY SUBANGULAR; MODERATELY TO WELL SORTED; MODERATELY TO OCCASIONALLY HIGH SPHERICITY; UNCONSOLIDATED; 70% QUARTZ, 30% OF METAMORPHIC/IGNEOUS LITHICS; GLAUCONITIC; FAST LIGHT YELLOW CUT FLUORESCENCE IS ONLY OIL INDICATOR. 12530' SAND = CLEAR, TRANSL WHITE, LIGHT TO MEDIUM GRAY, DARK GREEN; GRAINS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY FINE GRAINED; ANGULAR TO ROUND, DOMINANTLY SUBANGULAR TO SUBROUNDED; MODERATELY WELL SORTED; 70% QUARTZ, 30% LITHICS; COMMON GLAUCONITE; SCATTERED CHUNKS MICROCRYSTALLINE PYRITE; UNCONSOLIDATED IN SAMPLE; NON CALCAREOUS; EST FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; INSTANT MODERATELY BRITTLE LIGHT YELLOW CUT FLUORESCENCE; FAINT LIGHT YELLOW RESIDUAL CUT FLUORESCENCE; NO OTHER OIL INDICATORS. 12590' SHALE = LIGHT TO MEDIUM GRAY; MEDIUM TO DARK GRAYISH BROWN; SOFT TO MODERATELY FIRM; CRUMBLY TO OCCASIONALLY SLIGHTLY BRITTLE; DULL, EARTHY LUSTER WITH SCAI-rERED TO COMMON SPARKLES; SMOOTH TO MODERATELY GRAINY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS: LOCALLY MODERATELY SILTY; SCATTERED TO COMMON CARBONACEOUS SPECKS; SCATTERED MICROFINE MICA; CONTINUED LIGHT YELLOW FAST CUT FLUORESCENCE. 12640' SAND = CLEAR, TRANSL WHITE, LIGHT TO MEDIUM GRAY, OCCASIONALLY BLACK, DARK GREEN; CLASTS RANGE FROM VERY FINE TO MEDIUM, DOMINANTLY FINE GRAINED; ANGULAR TO SUBROUND, DOMINANTLY SUBANGULAR TO SUBROUND; MODERATELY WELL SORTED; COMPOSED OF 70% QUARTZ, 30% IGNEOUS AND METAMORPHIC LITHICS; SCATTERED TO COMMON GLAUCONITE; SCATTERED CHUNKS OF MICROCRYSTALLINE PYRITE; UNCONSOLIDATED IN SAMPLE; NON CALCAREOUS; EST FAIR TO GOOD VISUAL POROSITY AND PERMEABILITY; CONTINUED TRACE SHOW CONSISTING OF INSTANT LIGHT YELLOW MODERATELY BRIGHT CUT FLUORESCENCE. 12710' SHALE = LIGHT TO MEDIUM GRAY TO DARK BROWNISH GRAY OCCASIONALLY MEDIUM BLUISH GRAY; SOFT TO OCCASIONALLY MODERATELY FIRM; OCCASIONALLY FISSILE; CRUMBLY TO BRITTLE; DULL EARTHY LUSTER WITH OCCASIONALLY SPARKLES; COMMON SCATTERED CARBONACEOUS SPECKS; SMOOTH OCCASIONALLY MODERATELY GRAINY TEXTURE; NON TO SLIGHTLY CALCAREOUS; LOCALLY OCCASIONALLY SILTY; OCCASIONALLY SCATTERED PYRITE FRAGMENTS; SCATTERED VERY FINE MICA; CONTINUED PALE LIGHT YELLOW CUT FLUORESCENCE, SLOW, ONLY OIL INDICATOR PRESENT. 12770' SAND '- CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY OCCASIONALLY DARK GREEN; VERY FINE TO FINE OCCASIONALLY MEDIUM; ROUNDED TO SUBROUNDED OCCASIONALLY SUBANGULAR; MODERATELY TO WELL SORTED; COMPOSED OF 70% QUARTZ AND $0% OF METAMORPHIC/IGNEOUS LITHICS; UNCONSOLIDATED; OCCASIONALLY SCAI-I'ERED GLAUCONITE; EST GOOD VISUAL POROSITY AND PERMEABILITY, NO OIL INDICATORS. 12810' SHALE = LIGHT TO MEDIUM GRAY TO DARK BROWNISH GRAY OCCASIONALLY OLIVE HUES; SOFT TO OCCASIONALLY MODERATELY FIRM; OCCASIONALLY BRITTLE; OCCASIONALLY SUBFISSILE; DULL EARTHY LUSTER; COMMON SCATTERED CARBONACEOUS SPECKS GIVING SPARKLY LUSTER; SMOOTH TO MODERATELY GRAINY TEXTURE; NON TO OCCASIONALLY SLIGHTLY CALCAREOUS; LOCALLY SILTY TO MODERATELY SILTY; OCCASIONALLY PYRITE FRAGMENTS; OCCASIONALLY FINE MICA; NO OIL INDICATORS. 12870' SAND = CLEAR, TRANSLUCENT WHITE, LIGHT TO DARK GRAY~ VERY FINE TO FINE OCCASIONALLY MEDIUM-COARSE GRAINS; DOMINANTLY VERY FINE; SUBANGULAR TO SUBROUNDED OCCASIONALLY ROUNDED; MODERATELY TO WELL SORTED; HARD; OCCASIONALLY SCATI'ERED CHUNKS OF PYRITE; OCCASIONALLY SCATTERED LIGNITE WITH PYRITE ENCRUSTATION ON IT; COMMON MODERATE BROWN SILTSTONE FRAGMENTS; PALE TO LIGHT YELLOW CUT FLUORESCENCE, INSTANT; ONLY OIL INDICATOR. 12935' SANDSTONE = LIGHT TO MEDIUM GRAY OVERALL, SCATTERED TO COMMON MEDIUM TO DARK GREEN SPECKS; FRIABLE TO FIRM; VERY FINE LOWER TO FINE LOWER; WELL SORTED; 80% QUARTZ, 20% LITHICS, SCATTERED TO COMMON GLAUCONITE; SILTY; GRADING IN PART TO SILTSTONE; GRAIN SUPPORTED; LIGHT CALCAREOUS CEMENT; ESTIMATED POOR TO FAIR VISUAL POROSITY AND PERMEABILITY; NO OIL. 18010' LIMESTONE- LIGHT TO MEDIUM BROWNISH GRAY, LIGHT TO MEDIUM GRAY; MODERATELY HARD TO HARD; BRITTLE TO TOUGH; IRREGULAR, TABULAR CUTTINGS; DULL TO MODERATELY RESINOUS LUSTER; SMOOTH TO MODERATELY GRAINY TEXTURE; MODERATE TO VERY FAST ACID REACTION~ ARGILLACEOUS IN PART, GRADING TO AND INTERBEDDED WITH SHALE; TRACE PALE YELLOW MINERAL FLUORESCENCE. 1807'0' CONGLOMERATE = WHITE, LIGHT TO MEDIUM GRAY, LIGHT TO MODERATELY BROWN, BLACK, CLEAR~ CLASTS RANGE FROM GRANULE TO PEBBLE FRAGMENTS; POORLY SORTED; ANGULAR TO SUBROUNDED, ANGULAR FRACTION IS PROBABLY DUE MOSTLY TO BIT SHEARING; 60~ CHERT, 20~ IGNEOUS/METAMORPHIC LITHICS, 2C~ QUARTZ~ UNCONSOLIDATED; ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; TRACE LIGHT YELLOW SAMPLE FLUORESCENCE~ TRACE MODERATELY BROWN OIL STAIN ON GRAIN SURFACES; FAINT INSTANT PALE YELLOW CUT FLUORESCENCE; VERY FAINT PALE YELLOW RESIDUAL CUT FLUORESCENCE; NO OTHER OIL INDICATORS. 18160' CONGLOMERATE = LIGHT TO MEDIUM GRAY, WHITE, LIGHT TO MODERATE BROWN, BLACK, CLEAR; RANGES FROM GRANULE TO PEBBLE FRAGMENTS~ POORLY SORTED~ ANGULAR TO SUBROUNDED, DOMINANTLY ANGULAR; MOST GRAINS APPEAR TO BE BIT SHEARED~ 60~ CHERT, 20~ IGNEOUS/METAMORPHIC LITHICS, 20~ QUARTZ; SCATTERED CLUSTERS MICROCRYSTALLINE PYRITE~ SCATTERED TO COMMON CALCITE GRAINS~ ESTIMATED GOOD VISUAL POROSITY AND PERMEABILITY; TRACE MODERATELY BROWN OIL. NOTE: ABUNDANT CLEAR TO TRANSL WHITE CALCITE FRAGMENTS IN SAMPLE. MUD ADDITIVE. 18280' CONGLOMERATE = LIGHT TO MEDIUM GRAY, WHITE, LIGHT TO MODERATE BROWN, CLEAR, BLACK; GRAINS RANGE FROM GRANULE TO PEBBLE FRAGMENTS; POORLY SORTED; ANGULAR TO ROUNDED, DOMINANTLY ANGULAR, PROBABLY DUE TO BIT SHEARING; 60~ CHERT, 2C~ QUARTZ, 20~ IGNEOUS/METAMORPHIC LITHICS; OCCASIONALLY FRAGMENTS MICROFINE PYRITE; SCATTERED TO COMMON WHITE CLAY MINERAL; GOOD VISUAL POROSITY AND PERMEABILITY; VERY WEAK PALE YELLOW GOLD CUT FLUORESCENCE. NOTE: DRILLER'S DEPTH AT. TD: 15282' MEASURED DEPTH. .,,EPOCH WELL LOGGING., INC. SHOW REPORT NO. 1 BP EXPLORATION (ALASKA), INC. SAM NO. 1 DEPTH INTERVAL: 11390 TO 11410 (MD) TOTAL FTG 20 i RO P (fph) 77 127 123 183 WO B 6 11 7 15 RPM 79 81 80 85 MUD WT 10.3 10.3 10.3 10.3 TOTAL GAS 40 132 70 178 Cl (ppm) 7122 24970 12462 34990 C2 (ppm) 448 1375 734 1900 C3 (ppm) 182 489 328 650 C4 (ppm) 141 226 152 275 C5 (ppm) 32 40 42 75 SAMPLE CUTTINGS FLUORESENCE%: INTENSITY: MUD FLUORESENCE: NONE OBSERVED TR-10% COLOR LT YELLOW FAINT CUT: SLOW LT YEL'I_OW FORMATION DESCRIPTION: SAND = TRANSLUSCENT WHITE, LIGHT GRAY TO DARK GRAY; FINE TO LOWER MEDIUM, OCCASIONALLY COARSE; MOD TO POORLY SORTED; LOC SMALL AMOUNT OF CLAY MATRIX; DOM GRAIN SUPPORT; 80-90% QUARTZ, 10-20% IG/META LITHICS; SCATTERED PYRITE;. LOGGING GEOLOGIST(S): ARTEM RATCHKOVSK1, JOHN MORRIS · EPOCH WELL LOGGING, INC. SHOW REPORT NO. 2 BP EXPLORATION (ALASKA), INC. SAM NO. 1 DEPTH INTERVAL: 11603 TO 11805 (M D) TOTAL FTG 202 RO P (fph) 87 100 19 270 WOB 31 19 7 54 RPM 34 63 81 83 MUD WT 10.3 10.3 10.3 10.3 TOTAL GAS 46 338 22 1034 C1 (ppm) 8540 59032 3051 172177 C2 (ppm) 576 4409 255 14505 C3 (ppm) 237 1678 140 5937 C4 (ppm) 157 726 91 3092 C5 (ppm) 36 365 39 1376 SAMPLE CUTTINGS FLUORESENCE%: INTENSITY: UNIFORM COLOR VERY FAINT CUT: LIGHT YELLOW FAST MOD BRIGHT YELLOW MUD FLUORESENCE: TRACE FORMATION DESCRIPTION: SAND -- CLR, TRANSL WHITE, LT GRAY, MOD GREEN; VERY FINE TO COARSE, DOM FINE TO MED; MOD SORTED; ANG TO SUBROUND; 80% QUARTZ, 20% LITHICS; SCAT GLAUCONITE; NON CALC; EST GOOD VIS POR AND PERM. LOGGING GEOLOGIST(S): ARTEM RATCHKOVSKI, JOHN MORRIS EPOCH WELL LOGGING, INC. SHOW REPORT NO. 3 BP EXPLORATION (ALASKA), INC. SAM NO. 1 DEPTH INTERVAL: 12954 TO 13013 (MD) TOTAL FTG 59 ROP (fph) 25 59 24 189 WOB 18 20 22 39 RPM 126 121 104 144 MUD WT 10.3 10.3 9.7 10.3 TOTAL GAS 7 37 11 78 Cl (ppm) 1096 2907 1512 6491 C2 (ppm) 26 1175 137 2474 C3 (ppm) O 589 63 1124 C4 (ppm) 0 229 18 533 C5 (ppm) 0 0 0 0 SAMPLE CUTTINGS FLUORESENCE%: INTENSITY: 0 COLOR NIA NIA CUT: N/A MUD FLUORESENCE: TRACE OIL ON MUD SURFACE. FORMATION DESCRIPTION: SANDSTONE: LIGHT TO MEDIUM GRAY OVER- ALL, SCATTERED TO COMMON MEDIUM TO DARK GREEN SPECKS; FRIABLE TO FIRM; VERY FINE LOWER TO FINE LOWER; WELL SORTED; 80% QUARTZ, 20% LITHICS; SCAT TO COM GLAUCONITE; SILTY; GRADING IN PART TO SlLTSTONE; GRAIN SUPPORTED; LIGHT CALCAREOUS CEMENT; EST POOR TO FAIR VISUAL POR AND PERM. LOGGING GEOLOGIST(S): ARTEM RATCHKOVSKI, JOHN MORRIS EPOCH WELL LOGGING, INC. SHOW REPORT NO. 4 BP EXPLORATION (ALASKA), INC. SAM NO. I DEPTH INTERVAL: 13062 TO 13185 (MD) TOTAL FTG 123 AVERAGES: ~ BEFORE ~ I DURING ~ ~ AFTER MAXIMUM I ROP (fph) 33 30 23 68 WOB 32 20 22 23 RPM 102 148 162 159 MUD WT 9.7 9.7 9.7 9.7 TOTAL GAS 3 10 7 42 Cl (ppm) 338 256 429 1153 C2 (ppm) 100 132 128 405 C3 (ppm) 44 73 48 215 C4 (ppm) 0 18 0 109 C5 (ppm) 0 0 0 0 SAMPLE CUTTINGS FLUORESENCE%: INTENSITY: TRACE COLOR LIGHT YELLOW FAINT CUT: PALE YELLOW MUD FLUORESENCE: TRACE FORMATION DESCRIPTION: CONGLOMERATE; WHITE, LIGHT TO MED GRAY LIGHT TO MODERATE BROWN, BLACK, CLEAR; CLAST RANGE FROM GRANULE TO PEBBLE FRAGMENTS; POORLY SORTED; ANGULAR TO SUBROUND~ ANGULAR FRACTION IS PROB. BIT SHEARED; 60% CHERT, 20% IG/META LITHICS, 20% QUARTZ; UNCONSOLIDATED; EST. GOOD VISUAL POR AND PERM. LOGGING GEOLOGIST(S): ARTEM RATCHKOVSKt~, JOHN MORRIS RIG ACTIVITIES BP EXPLORATION (ALASKA), INC. SAM NO. 1 10/26/97 MOVE AND RIG UP OVER SAM #1. PICK UP BHA. HOLD PRE SPUD MTG. FUNCTION DIVERTER. PERFORM DiVERTER DRILL. PICK UP MWD. DRILL 105' TO 420'. 10/27/97 DRILL TO 1550' 10/28/97 DRILL TO 1630'. LOST PUMP PRESSURE. PULL OUT OF HOLE LOOKING FOR WASH OUT. RUN IN HOLE. DRILL TO 2750'. 10/29/97 DRILL TO 3000', WIPE HOLE TO 1600'. DRILL TO 4200'. 10/30/97 DRILL TO 4445'. WIPE HOLE. PULL OUT OF HOLE. RIG UP AND RUN 9 5/8" CASING. 10/31/97 CIRCULATE AND CEMENT CASING. NIPPLE DOWN DIVERTER. NIPPLE UP BOP's. 11/1/97 TEST BOP'S. PICK UP BHA AND HEAVY WT. DRILLPIPE. SLIP AND CUT DRILL LINE. SHUT DOWN RIG FOR SAFETY MEETINGS. 11/2/97 COMPLETE SAFETY STAND DOWN. RUN IN HOLE. DRILL CEMENT. TEST CASING. DRILL FLOAT AND CASING SHOE. DRILL 20' NEW HOLE. CIRCULATE BOTTOMS UP. PERFORM LEAK OFF TEST. DRILL AHEAD. 11/3/97 DRILL TO 5513', WIPE HOLE TO SHOE. DRILL TO 6177'. 11/4/97 DRILL TO 7268'. PULL OUT OF HOLE FOR BIT AND BHA CHANGE. 11/5/97 RUN IN HOLE. DRILL TO 7713'. CIRCULATE BOTTOMS UP. WIPE HOLE. DRILL TO 8025'. 11/6/97 DRILL TO 8780'. CIRCULATE BOTTOMS UP. WIPE HOLE. DRILL TO 9019'. 11/7/97 DRILL TO 9732'. WIPE HOLE. DRILL TO 10579'. 11/8/97 DRILL TO 10758'. WIPE HOLE. DRILL TO 11715'. CIRCULATE BOTTOMS UP. WIPE HOLE. 11/9/97 DRILL TO 12129'. CIRCULATE BOTTOMS UP. DO MAD RUN. PULL OUT OF HOLE TO SHOE. 11/10/97 RUN TO BOTTOM. CIRCULATE BOTTOMS UP. CONDITION MUD. PULL OUT OF HOLE. TEST BOP EQUIPMENT. RIG UP FOR E-LOGS. 11/11/97 E-LOG TO 9870L RUN IN WITH DR!LLP!PE CONVEYED LOGS: 9321'-10482' 11/12/97 11/13/97 11/14/97 11/15/97 11/16/97 11 / 17/97 11/18/97 11/19/97 11/20/97 11/21/97 11/22/97 11/23/97 RIG ACTIVITIES BP EXPLORATION (ALASKA), INC. SAM NO. 1 FINISH DRILLPIPE CONVEYED LOGS. SLIP AND CUT DRILL LINE. RIG UP AND RUN W I RE L I N E- ELECTRIC LOGS. FINISH RUNNING WIRELINE LOGS. RIG UP AND RUN IN WITH DRILLPIPE CONVEYED GAMMA RAY AND RFT TOOL. CONTINUE WITH DRILLPIPE CONVEYED GAMMA RAY AND RFT. FINISH RFTRUN. PULL OUT OF HOLE. PICK UP BHA. RUN IN HOLE. WASH AND REAM. WASH AND REAM TO 12129'. DRILL TO 12860'. CIRCULATE BOTTOMS UP. DRILL TO 12915'. CIRCULATE BOTTOMS UP. RIG UP ANDRUN 7" CASING. SET 7" CASING AT 12866'. CIRCULATE CASING WITH PARTIAL MUD RETURNS. CEMENT CASING AND DISPLACE CEMENT WITH RIG PUMPS. LAY DOWN CASING EQUIPMENT. TEST BLOW OUT PREVENTERS. LAY DOWN 5" DRILLPIPE. CHANGE OUT KELLY. TEST KELLY. PICK UP BOTTOM HOLE ASSEMBLY. PICK UP 3 1/2" HWDP. PICK UP 3 1/2" DRILLPIPE. WASH FROM 12640' TO 12725". WASH FROM 12723' TO 12821'. TAG FLOAT COLLAR. CIRCULATE BOTTOMS UP. STAND DOWN FOR RIG SAFETY MEETINGS. CUT AND SLIP DRILLING LINE. LAY DOWN 5" DRILL PIPE. TEST CASING TO 3500 PSI. PULL OUT TO 12521'. PERFORM STRIPPING IN DRILL, ACCUMULATOR DRILL. DRILL FLOAT, CEMENT, SHOE AND 20 FEET NEW HOLE. CIRCULATE AND CONDITION MUD. PERFORM LEAK OFF TEST. DISPLACE MUD. CHANGE SHAKER SCREENS. LUBE RIG. DRILL TO 13009'. HOLE TAKING FLUID, CUT MW TO 9.8 PPG. DRILL TO 13049', MWD DETECTION PROBLEMS, TREAT MUD WITH DEFOAMER. DRILL TO 13168'. DRILL 13168' TO 13282', CIRCULATE BOTTOMS UP. MAD PASS FROM 13282' TO CASING SHOE. PULL OUT OF HOLE TO 12887'. MONITOR WELL. RUN IN HOLE TO 13253', CIRCULATE AND CONDITION MUD. MONITOR WELL. PULL OUT OF HOLE ANDMONLTORWELL AT 12807'--SLIGHT LOSS. POOH WET, STRAP OUT, WORK B.H.A. I SAM NO. 1 SURVEY SUMMARY NORTH SLOPE, ALASKA Data from Sperry-Sun Alaska WELL LOGGING, INC. MEASURED HOLE VERTICAL COURSE COORDINATES DOGLEG DEPTH TVD ANGLE AZIMUTH SECTION LENGTH N (+) or S (-) E (+) or W (-]SEVERITY 38 38 0 0 0 N1A 0 0 0 149.66 149.66 0.21 t10.9 -0.1 111.66 0.07 -0.19 0.19 233 233 0.22 213 -0.29 83.34 0.26 -0.25 0.4 323.42 323.41 0.91 272.7 -0.3 90.42 0.37 -0.57 0.91 412.08 412.05 1.52 268.2 .0.06 88.66 0.38 -2.44 0.7 503.78 503.7 2.46 274.4 0.45 91.7 0.26 -5.62 1.05 '594.?.4 t 594.03 3.52 269.6 1.18 90.46 0.13 -10.33 1.2 680.54 680. t 3 4.39 263,4 t .55 86.3 0.53 -16.26 1.12 766.27 765.59 4.71 ! 267.4 1.88 85.73 1.07 -23.04 0.53 789.81 789:05 4.74 268.9 2,06 23.54 1.13 -24.98 0.54 830.18 829.27 5.17 270.6 2.5 40.37 1.15 -28.46 1.13 859.75 858.71 5.49 276,5 ~ 3:02 29:57 0.97 -31.2 2.14 889.74 888.55 5.9 279.4 ; 3.8 29.99 0.56 -34.15 1.67 918.47 917.12 6.4 284.1 4.81 28.73 0.07 -37.16 2.47 943.78 942.25 7.23 289 6.04 25.31 0.94 -40.03 4 980.9t 979,06 7.76 292.7 8.33 37.13 2.66 -44.55 1.93 1009.27 tO07. t5 8.12 298.7 t0.46 28.36 4.37 -48.08 3.18 1037.98 1035~56 8.38 298.4 12.88 28.71 6.33 -51.7 0.92 1070,95 1068.16 8:95 301.8 15.9 32.97 8.83 -55.99 2.32 1102.82 1099.61 9.55 305.1 19.25 31.87 11.65 -60.26 2.51 1135.31 ~ 1131.65 9.66 306.6 22.96 32.49 14.83 -64.65 0.84 1 t69.3 1165.t t t0.44 308.6 27.15 33.99 18.45 -69.35 2.51 1195.98 1191,31 I 11.41 309.5 30.81 26.68 21.64 -73.27 3.69 1228.38 t223 t2.63 ! 308.7 35.7 32.4 25.89 -78.51 3.8 1260.78 1254.57 13.36 309.4 40.97 32.4 30.48 -84.17 2.3 t293.18 1286,08 t3.5 309.4 46.45 32.4 35.26 -89.98 0.43 1325.58 1317~53 14.31 310.8 52.19 32.4 40.28 -95.94 2.71 1352,89 1343.91 ~15.79 311.5 57,5 27.31 44.94 -101.28 5.46 1388.76 ' 1378~35 16.61 312.9 ~ 65.11 35.87 51.67 -108.69 2.53 Page 1 MEASURED VERTICAL COURSE COORDINATES DOGLEG DEPTH TVD ANGLE AZIMUTH SECTION LENGTH N {+} or S {'! E [+1 orW (-) SEVERITY 1420.03 1408.33 16.39 314.6 72.02 31.27 57.81 -115.1 1.7 1452.18 1439.15 16.79 317 79.36 32.15 64.39 -121.5 2.47 1483.98 1469.61 16.57 318.2 86.83 31.8 71.1 3 -127.65 1.29 1516.02 1500.27 17.17 318.4 94.51 32.04 78.07 -133.84 1.88 1547.47 1530.3 17.35 318.3 102.21 31.45 85.04 -140.04 0.58 1577.27 1558.76 17.21 318.71 109.54 29.8 91.67 -145.9 0.62 1611.19 1591.14 17.45 318.9 117.93 33.92 99.28 -152.56 0.73 1642.74 1621.21 17.82 3t 9.6 125.91 31.55 106.52 -158.8 1.35 1675.08 1652 17.77 320.8 134.25 32.34 114.11 -165.12 1.14 , 1706.1 1681.49 18.33 320.6 142.4 31.02 121.55 -171.21 1.82 1736.07 1709.89 18.9 321.7 150.55 29.97 129 -177.21 2.23 .. 1768.16 1740.2 19.53 321.9 159.62 32.09 137.3 -183.74 1.97 1801.06 1771.14 20.22 323.2 169.29 32.9 146.18 -190.54 2.49 .. 1833.17 1801.26 20.29 322.8 178.95 32.11 155.06 -197.23 0.48 1864.72 . 1830.84 20.47 321.8 188.43 31.55 163.75 -203.95 1.24 1898.32 1862.24 21.22 320.9 198.65 33.6 173.09 -211.42 2.43 1927.96 1889.74 22.51 320.5 208.01 29.64 181.63 -218.41 4.38 . 1988.39 1945.01 25.16 320.9 228.72 60.43 200.52 -233.87 4.39 2020.24 1973.72 26.2 320.4 240.42 31.85 211.2 -242.63 3.34 2051.81 2001.82 28.14 321.3 252.65 31.57 222.36 -251.71 5.97 2083.11 2029.31 29.08 322.4 265.51 31.3 234.13 -260.95 3.72 2114.76 2056.9 29.56 324.2 279.01 31.65 246.55 -270.21 3.17 2147.16 2085.03 29.94 326.4 293.29 32.4 259.77 -279.36 3.57 2177.33 211 t .t9 29.83 327.3 306.82 30.17 272.36 -287.58 1.53 2209.86 2139.43 29.67 327.1 321.39 32.53 285.92 -296.32 0.58 ,, 224t .86 2167.2 29.97 328.8 335.85 32 299.41 -304.77 2.8 2273.66 2194.69 30.4 330.3 350.55 31.8 313.19 -312.87 2.73 2303.79 2220.66 30.51 331.1 364.72 30.13 326.51 -320.34 1.39 , 2335.91 2248.22 31.27 331.8 380.09 32.12 341 -328.22 2.62 2367.99 2275.59 31.62 332 395.73 32.08 355.76 -336.1 1.14 , 2401.08 2303.63 32.55 333.4 412.25 33.09 371.38 -344.16 3.6 .... 2430.66 2328.47 33.21 334.3 427.45 29.58 385.79 -351.24 2.78 Page 2 , MEASURED HOLE VERTICAL COURSE COORDINATES DOGLEG DEPTH TVD ANGLE AZIMUTH SECTION LENGTH N I+! or S ('iE l+l or W (- SEVERITY 2462.66 2355.23 33.3 334.9 444.14 32 401.64 ..358.76 1.07 2494.56 2381.77 34.08 335,8 461.03 31.9 417.73 -366.14 2.9 2519.76 2402.59 34.54 336.2 474,64 25.2 430.7 -371.92 2.03 2557.06 2433.32 34.52 337.6 494.98 37.3 450.15 -380.21 2.13 2590.04 2460,43 34.89 338,4 513,14 32,98 467.56 -387.25 1,78 2621.16 2485.94 35 339.4 530.46 31.12 484.19 -393,66 1.87 2653.56 2512.43 35.29 341.4 548.68 32.4 501.76 -399.92 3.66 2683.89 2537.16 35.5 343 565.96 30,33 518.48 -405.29 3.13 2716.56 2563.66 36.04 343.6 584.79 32.67 536.78 -410.78 1.97 2750 2590.56 36.86 343.2 604.4 33.44 555.81 -416,45 2.55 2778.49 2613.29 37.29 343.6 621.35 28.49 572.27 -421.36 1.73 2810.98 2639.02 38.02 344.8 640.99 32.49 591.37 -426.76 3.18 2839.68 2661.48 38.92 345 658.68 28.7 608.62 -431.41 3.3 2872.41 2686.83 39.52 345.2 679.21 32.73 628.62 -436.74 1.75 2904,18 2711.27 39,89 346.5 699,36 31.77 648,3 -441,7 2.86 2933,55 2733.7 40.55 347.2 718.23 29.37 666.77 -446.01 2.72 2964.66 2757.13 41.71 348.3 738,61 31.11 686.77 -450.35 4.39 2996.45 2780.82 41.95 349 759.76 31.79 707.55 -454.52 1.65 3027,69 2803.92 42.65 350.3 780.76 31.24 728.24 -458.3 3.59 3058.11 2826.26 42.85 349.2 801.38 30.42 748.56 -461.97 2.54 3090.06 2849.62 43.22 350.3 823.15 31.95 770.01 -465.85 2.62 3122.07 2872.92 43,34 351.1 845.08 32.01 791.67 -469.4 1.75 3153.64 2895.84 43.56 350,9 866.79 31.57 813.11 -472.79 0,82 3185.99 2919.14 44.28 350.5 889.21 32.35 835.26 -476.42 2,39 3213.32 2938.71 44.28 350.9 908.28 27.33 854.09 -479,51 1.02 3248.18 2963.58 44.69 351.3 932.7 34.86 878.22 -483.28 1.42 3279,62 2985.79 45.4 351.2 954.95 31.44 900.21 -486.67 2.27 3312.03 3008.5 45.65 351.8 978,06 32.41 923.08 -490.09 1.53 3344.86 3031.31 46.3 351.2 1001.66 32.83 946.43 -493.58 2.38 3374.82 3051.91 46.85 351.4 1023.42 29.96 967.94 -496.87 1.9 3402.25 3070.61 47.19 351.95 1043.48 27.43 987.79 -499.77 1.92 -- 3432,59 3091 ,t2 47.76 352.4 1065.84 30.34 1009.94 -502.82 2.17 Page 3 MEASURED HOLE VERTICAL COURSE COORDINATES UU~bt=~ DEPTH TVD ANGLE AZIMUTH SECTION LENGTH N (+) or S (-~; ,I+! or W l'SEVERITY 3466.8 3114 48.28 352.7 1091.27 34.21 1035.16 -506.11 1.65 ~ 3499.12 3135.37 48.92 353.4 1115.52 32.32 1059.22 -509.05 2.56 3531.66 3156.57 49.8 353.7 1140.2 32.54 1083.76 -511.82 2.79 3561.6 3175.8 50.26 353.7 1163.15 29.94 1106.57 -514.34 1.54 3593.48 3196.13 50.49 354 1187.7 31.88 1130.98 -516.97 1.02 3626.6 3217.2 50.52 354.4 1213.25 33.12 1156.41 -519.55 0.94 3656.08 3235.77 51.38 355.2 1236.12 29.48 1179.21 -521.63 3.6 ,,, 3687.98 3255.56 51.92 355.8 1261.11 31.9 1204.15 -523.59 2.25 3752.06 3294.02 54.32 357.1 1312.25 64.08 1255.3 -526.75 4.08 3783.87 3312.35 55.3 357.3 1338.16 31.81 1281.27 -528.02 3'12 3815.96 3330.48 55.87 357 1364.56 32.09 1307.71 -529.34 1.94 3846.88 3347.78 56.11 357.2 1390.11 30.92 1333.3 -530.63 0.94 3878.7 3365.49 56.26 357.5 1416.46 31.82 1359.71 -531.86 0.91 3942.46 3400.7 56.69 358.2 1469.39 63.76 1412.83 -533.85 1.14 4039.16 3454,33 55.95 359.4 1549.4 96.7 1493.28 -535.54 1.29 4133.6 3507.61 55.36 358.5 1626.91 94.44 1571.24 -536.96 1.0 4225.26 3559.94 55.01 357.2 1701.85 91.66 1646.43 -539.79 1.23 4320.7 3615.29 54.11 355.1 1779.45 95.44 1724.01 -545 2.03 4378.84 3649.47 53.87 354.9 1826.44 58.14 1770.86 -549.1 0.5 4477.25 3707.84 53,37 357.1 1905.53 98.41 1849.89 -554.63 1.87 4569.76 3762.86 53.65 355.8 1979.74 92.51 1924.12 -559.23 1.17 4664.94 3819.21 53.74 354.9 2056.36 95.18 2000.57 -565.45 0.77 4759.13 3874.76 53.98 355.3 2132.36 94,19 2076,35 -571.95 0.43 4855.57 3931.31 54.23 354.2 2210.43 96.44 2154.15 -579.1 0.96 4950.60 3987.33 53.53 353.9 2287.17 95.03 2230.5 -587.06 0.78 5045.21 4043.58 53.5 353.8 2363.22 94.61 2306.13 -595.21 0.09 5139.78 4099.97 53.3 353.6 2439.13 94.57 2381.59 -603.54 0.27 5235.89 4157.58 53.04 354.7 2516.03 96.11 2458.12 -611.35 0.99 ,,, 5330.15 4214.32 52.94 354.9 2591.25 94.26 2533.08 -618.20 0.20 ..... 5425.66 4272.09 52.63 354.8 2667.26 95.51 2608.83 -625.03 0.34 5518.62 4327.92 53.54 354.3 2741.54 92.96 2682.82 -632.09 1.07 5614.00 4384.50 53.69 353.7 2818.3 95.38 2759.18 -640.12 0.53 Page 4 ! MEASURED HOLE VERTICAL COURSE COORDINATES DOGLEG DEPTH TVD ANGLE AZIMUTH SECTION LENGTH N,I+,! or s (-',E I+! or W l' SEVERITY' I I I I 5708.85 4441.38 52.63 355.9 2894.15 94.85 2834.77 -647.00 2.17 , . , , , . -~ 5805.05 4499.65 52.8 356.1 2970.56 96.20 2911.12 -652.34 0.24 5898.34 4555.4 53.47 355.5 3045.25 93.29 2985.72 -657.83 0.88 5994.69 4613.31 52.64 356 3122.14 96.35 3062.51 -663.54 0.96 ,, 6088.18 4670.22 52.37 356.7 3196.16 93.49 3136.53 -668.26 0.66 , , 6184.66 4728.92 52.69 356.2 3272.57 96.48 3212.96 -673.01 0.53 . ... 6280.09 4786.75 52.7 355.8 3348.34 95.43 3288.68 -678.30 0.33 6374.02 4843.33 53.22 355.4 3423.22 93.93 3363.43 -684.05 0.65 6470.38 4901.67 52.27 356.5 3499.79 96.36 3439.94 -689.48 1.34 , 6565.10 4959.08 53.1 356.2 3574.97 94.72 3515.12 -694.27 0.91 6661.37 5016.66 53.43 356.5 3651.96 96.27 3592.11 -699.18 0.42 , . 6756.46 5074.17 52.15 356.7 3727.51 95.09 3667.71 -703.68 1.36 ., 6849.45 5130.98 52.53 355.7 3800.99 92.99 3741.16 -708.56 0.94 6943.43 5187.72 53.2 355.4 3875.81 93.98 3815.86 -714.37 0.76 , , 7037.37 5243.58 53.82 354.6 3951.27 93.94 3891.09 -720.95 0.95 7133.62 5300.83 53.19 355.8 4028.57 96.25 3698.19 -727.43 1.20 . . 7214.15 5349.2 52.97 356.5 4092.83 80.53 4032.43 -731.76 0.75 . ,, , 7305.84 5404.13 53.43 355.4 4166.13 91.69 4105.66 -736.94 1.08 7402.40 5461.58 53.55 355.5 4243.65 96.56 4183.03 -743.10 0.15 7496.14 5517.18 53.69 354.8 4319.05 93.74 4258.23 -749.48 0.62 7589.97 5572.17 54.56 354 4395.04 93.83 4333.89 -756.90 1.1 6 7685.66 5629.03 54.52 356.1 4471.93 95.69 4410.55 -763.56 2.77 7780.51 5686.41 53.03 356.2 4547.31 94.85 4485.91 -768.63 0.54 ., 7874.41 5742.69 53.32 355.7 4622.35 93.90 4560.88 -773.94 0.53 , 7966.20 5797.05 54.05 354.8 4696.24 91.79 4634.59 -780.07 1.t2 8061.46 5852.47 54.8 354.3 4773.68 95.26 4711.72 -787.43 0.90 8155.03 5907.56 53.06 354.9 4849.26 93.57 4787.01 -794.55 1.93 . . 825t.04 5964.53 54.15 355.2 4926.48 96.01 4864 -801.22 1.16 ., , 8345.79 6019.32 55.2 353.8 5003.74 94.75 4940.95 -808.63 1.64 ., 8439.94 6074.26 53.39 355 5080.15 94.15 5017.03 -816.10 2.18 8534.38 6130.02 54.24 354.8 5156.32 94.44 5092.95 -822.88 0.92 8629.61 6184.95 55.3 354.8 5234.05 95.23 5170.42 -829.93 1.11 Page 5 I MEASURED HOLE VERTICAL COURSE COORDINATES DOGLEG DEPTH TVD ANGLE AZIMUTH ,SECTION LENGTH N l+! or S (-iH (+) or W (-:SEVERITY 8723.41 6239.43 53.69 354.6 5310.36 93.80 5246.45 -836.98 1.73 ,, 8818.56 6296.65 52.38 357.5 5386.24 95.15 5322.28 -842.23 2.80 8913.52 6354.19 53.03 356.9 5461.54 94.96 5397.73 -845.92 0.85 9010.09 6411.5 54.16 356.9 5539.05 96.57 5475.34 -850.13 1.17 9105.42 6468.53 52.07 357.7 5614.82 95.33 5551.25 -853.84 2.26 9294.81 6583.78 53.26 355.8 5101.67 189.39 5765.1 -862.34 1.21 9389.90 6641.62 51.81 355.8 5776.94 95.09 5840.46 -867.86 1.52 9484.24 6699.98 51.76 355.3 5850.84 94.34 5914.49 -873.61 0.42 9582.t3 6760.38 52.03 354.5 5927.56 97.89 5991.46 -880.46 0.70 9677.75 6819.32 51.87 353.7 6002.46 95.62 6066.73 -888.20 0.68 9772.67 6877.65 52.3 353.9 6141.6 94.92 6076.91 -896.29 0.48 9868.51 6936.81 51.47 356 6216.94 95.84 6152.01 -902.93 1.93 9961.40 6994.63 51.54 354.6 6289.56 92.89 6224.47 -908.89 1.18 10054.04 7052.06 51.84 355.3 6362.19 92.64 6296.87 -915.29 0.68 10145.81 7108.68 51.96 355.9 6434.31 91.77 6368.88 -920.83 0.53 10239.41 7166.25 52.14 354.7 6508.04 93.60 6442.44 -926.88 1.03 10333.98 7224.01 52.56 355.8 6582.84 94.57 6517.05 -933.08 1.02 10429,47 7282 52.66 355.7 6658.6 95.49 6592.71 -938.70 0.13 t0523.96 7339.15 52.91 354.11 6733.79 94.49 6667.66 -945.38 1.37 10618.37 7396.14 52.83 354.5 6809.03 94.41 6742.56 -952.86 0.35 10712.68 7453.24 52.65 352.9 6884.07 94.31 6817.16 -961.10 1.36 10807.72 7510.55 53.17 352.8 6959.88 95.04 6892.38 -970.54 0.55 10902.05 7566.88 53.5 351.9 7035.55 94.33 6967.37 -980.61 0.84 10997.38 7624.87 51.57 353.9 7111.2 95.33 7042.45 -989.98 2.62 11188.10 7258.02 49.2 355.3 7258.02 190.72 7188.7 -1003.83 1.37 11282.13 7239.28 49.46 354.8 7328.15 94~03 7259.75 -1009.99 0.49 11377.41 7401.98 50.09 354.4 7400.85 95.28 7332.17 -1016.84 0.73 11471.29 7474.24 50.63 354.5 7473.11 93.88 7404.13 -1023.83 0.58 11565.41 7991.37 48.76 357.6 7544.75 94.12 7474.72 -1027.67 3.20 11659.19 8054.62 46.4 358.5 7613.67 93.78 7543.9 -1030.04 2.61 11756.49 8122.43 45.25 359.3 7683.04 97.30 7613.67 -1031.38 1.32 11851.79 8190.82 43.02 358.6 7749 95.30 7680.02 -1032.59 2.40 Page 6 MEASURED HOLE VERTICAL COURSE COORDINATES DOGLEG DEPTH TVD ANGLE AZIMUTH SECTION LENGTH N (+! or S (-)~= (+) or W (-: SEVERITY 11947.18 8262.09 40.28 359.6 7811.99 95.39 7743.4 -1033.60 2.96 12042.53 8337.23 35.67 359.81 7870.2 95.35 7802.05 -1033.91 4.84 12136.56 8414.17 34.52 357.8 7932.94 94.03 7856.09 -1035.02 1.73 12231.89 8493.38 33.1 359 7976.72 95.33 7909.11 -1036.52 1.65 12326.85 8573.57 31.66 358.3 8027.29 94.96 7959.95 -1037.71 1.57 12420.50 8653.53 31.08 357.76 8075.83 93.65 8008.67 -1039.38 0.69 12452.26 8680.73 31.1 358.01 8092.16 31.76 8025.06 -1039.99 0.41 12484. t 3 8708.12 30.35 358.2 8108.37 31.87 8041.33 -1040.53 2.37 12515.69 8735.49 29.41 358.72 8124.02 31.56 8057.05 -1040.95 3.09 12546.57 8762.55 28.18 358.28 8138.81 30.88 8071.92 -1041.34 4.04 12578.34 8790.67 27.26 358.5 8153.52 31.77 8086.69 -1041.75 2.91 12610.17 8819.01 26.97 359.1 8167.94 31.83 8101.19 -1042.06 1.25 12641.77 8847.27 26.14 359.02 8181.98 31.60 8115.32 -1042.29 2.63 12673.36 8875.75 25.18 359.26 8195.57 31.59 8129 -1042.29 3.06 12704.77 8904.26 24.42 0.06 8208.65 . I 31.41 8142.17 -1042.57 2.64 12737.18 8933.84 23.84 0.89 822t .77 32.41 8155.42 -1042.46 2.07 12768.91 8962.97 22.82 0.23 8234.22 31.73 8167.99 -1042.34 3.32 12800.75 8992.4 22.05 0.25 8246.27 31.84 8180.14 -1042.29 .2.42 12832.77 9022.08 22.03 0.34 8258.17 32.02 8192.15 -1042.23 0.12 12861.91 9049.08 22.15 0.23 8269.04 29.14 8203.11 -1042.17 0.44 12941.04 9122.36 22.22 2.26 8298.58 79.13 8232.98 -1041.52 0.97 12973.08 9152.06 21.77 0.71 8310.44 32.04 8244.97 -1041.21 2.29 13005.09 9181.83 21.36 357.5t 8322.12 32.01 8256.73 -1041.39 3.89 13037.05 9211.64 20.98 354.95 8333.64 31.96 8268.25 -1042.15 3.13 13068.86 9241.35 20.86 354.27 8344.99 31.81 8279.56 -1043.21 0.85 13100.78 9271.19 20.72 354.51 8356.32 31.92 8290.83 -1044.32 0.51 13132.52 9300.9 20.54 353.66 8367.49 31.74 8301.95 -1045.47 1.10 13164.70 9331.06 20.29 353.19 8378.72 32.18 8313.11 -1046.76 0.93 13214.39 9377.73 19.73 352.64 8395.77 49.69 8330.03 -1048.84 1.85 13282.00 9441.37 19.73 352.64 8418.59 67.61 8352.66 -1051.77 0.00 Page 7 B.P.'EXPEORATION :'(ALASKA),' INC.' ~ ' ' .............. , , , .......... SAM NO. I DALLY MUD REPORTS ~/~/r~~~ INORTH SLOPE, ALASKA -- , : DATE DEPTH WEIGHT ~ ' V~S ' PV' .... YP ' GELS F~LTRATE ' CAKE ' ' SOLIDS' SAND : PH Pm 'PftlV[f CI ~0/26/97 ~ ~420 I~ '8~.8''' "3501 ~ 'i9 ' "142' '93/t06~ ' ~12'.5 .... 3 ' ' '3:5' 050 ' "9,'7 ' 0.,'50 "1:15/.6' ' '450.' ' '2~ i0/28/~7. '2750 ' ' '9.3 "300 "' 22' ' ~38" ' 35/83 ' ' 3 ' "7:3' ' '1.50. '8.5' '0,10 ~ '.1~.3 800 20'`. 10/29/97 '4200: :' ~9'.5: ' '155~ 15 ' ~50' '61/711 ',' i5.3' 3 ' ' '8:6' ' 0.;~5,' 8,'3' i .0,.08 ,. ,.05/.25, , 13100 '10i30/97 '4~d5" ' "9'.8 ..... 914' ' ' 1'8' ' '32' ' 3~8/56 .I' i2'.3 ' ' ' ;3. ' ' '10.4. ' ' ~.50' "8.3' "0,'05 .05/.25' ' ~300 i0/3i/97 "4dd5~ , 8'.7 ~ , ..2.8, ,. ~. i .... ~ 0 ' 0/0, , ;0.0, , . , ~ . ,0!,0, I, " ' ! '9.5 ..... '=44~ "'1'4' = "21' '1'4/19 13:5 .... 2' "'8,'5' "1.00' ' ~0.0' ' '0.'32 ' ' .24/.90'" 1700 1!/i/97 ~44d5 2 0.00 ;11'.1' '0.00 ' 0/0' ' 21'00 '380' 11/2/97 '4465' 9.4' 38~' : :' 10 ..... 18' '1'0/14 "i3'.7" 2 ' '815' ' ' 1.00 ' i'1'.7 0.'34 ' .27/1.05 ' 21'00 '1i/3/97 6117 ' ' "'9::5" ~ '4,'8' ; "1i '" "17 11'0/35 ' '9.8 ' '2 '815" TR ' ;106 ' '3.50 ' '.18/1.95 ' 21'00 '62~ 1i/4/97 '7214 ' 9.7 52~ 1;4 16 5/9 '5.4 2 9j8 'TR 8.9 1.20 .1'2/2.15 3200 '48~ 1i/5/97 I' 8025~ '9.8 54" "1;4 ""20' 7/i2' '46' "2 "10.7 '' 0.15 '9.'0' '1.'85 ' .387315' 2550 270. 1116197' 9019 "9:9 ' '57" ~ ' 17 J 26' ' 8/12 3.2" I ' 2 ' '11;.9 0.10 "'9.'3 1.65 .68/3.25 2450 "'180." 11/7/97~ 10579 ":10.1 ' '54" ' " 16 '25" "8/1t' '3.6' 1 '109 0. i3 9.'0 1.'10 ' ' ,11/2.9 ' 1900 ' '20d 11/8/97 1171'5 10.4 ' 63: 26 ' '47' ' 19/26 '2.0" 1" ' '12.4' 0.25 '8.8' ' '1.00 ' .25/4.25 ' i300 240' 1i/9/97: i2i29 10.4 ' ' ~6'0 .... 21 ~ "29~ 9/12' '1.8' ' 1' '12.9 'TR 9.'0 1.'20 ,2/3.2 i500 '224 11i10/97 1'212.9 I" '10.4 ' ' 65 '2'1 ' 29" '1 8/i0 2.0 1 11'.9 TR 8.7 '0.50 .1/2.6 1300 '180 11/11/97 12129 10.4 71' : 20 : 23 7/10 1.9 1' ' 11.9 0.13 '8.6' 0.'30 ' .05/3.65~ 1200 320- i1/12/97 ' 12129' ' :10.4 :'71' 17 ' " '21 8/10 2.0 1' 11.9 0.;13 8,9 ' 0.80 " .3/5.3 1300 ' 200'~ 11/13/97 12129 '10.4 ' 65 ' '15' ~ '18 6/7 2.4 1 11.9 0.13 '9.0 0.90 .15/4.55 1300 17~ 11/14/97' 12129 10.3 50 ' 15' '14 4/6 '2.2 1 ' 13.4' 0.13 9.0 0.80 .25/410 1300 11/15/97 12129 10.3 ~ 70 17 ' '19 5/9 2.4 1 12.4 0.13 8.5 '0.25 ,1/4.1 1400 11/16/97 12519 10.3 51 17 21 7/9 2.0 1 11.9 0.38 8.9 0.95 .20/4.0 1300 128' 11/17/97 12915 10.3 54 20 35 13/17 1.7 1 12.9 0.13 9.0 1.15 .25/4.2 1250 104 11/18/97 12915 10.5 78 20 35 12/16 1.5 1 13.6 0.13 9.0 1.15 .3/4.3 1250 104 11/19/97 12915 9.8 73 21 30 14/19 5.4 1 10.9 0.25 8.5 0.35 .05/4.4 1300 236 11/20/97 12915 9.8 40 10 10 3/13 3.8 I 11.0 0.50 11.3 1.80 .35/2.5 900 120 11/21/97 12915 9.7 44 10 11 4/12 4.1 I 10.9 0.50 11.5 1.90 .38/2.75 1050 140 11/:22/97 12936 10.1 46 10 23 8/12 5.8 1 6.1 0.10 8.6 0.10 .07/1,15 29000 320 11/23/97 13142 9,7 50 10 25 9/14 4.5 1 5.1 0.30 8.9 0.25 .05/1.3 27000 100 11/24/97 13282 9.7 55 11 25 8/14 4.4 1 4.9 0.25 9.1 0.21 .28/1,63 30000 60 Bp EXPLORATION (ALASKA),"iNC'. SAM NO. 1 BIT RECORD NORTH SLOPE, ALASKA WELL LOGGING, INC. : BIT GRADING I O D 'L B' G O 'W NU U O E A T H NT L C A U H Y EEL A R G E RR T I E R P C ~ N U RR H O G C L TOTAl AVG' O O A N S H L BIT SERIAL SIZE JETS DEPTH DEPTH FEET BIT AVG AVG AVG PUMP W WI R A E NUMBER NUMBER INCHES MAKE TYPE (in 32nds) IN OUT DRILLED HOURS FT/HR WOB RPM PSi S S R D ~ EM 4559 12~14" STc MA1sL ' '~3 15 15 105' 4445' 4340. ' 46.25 93.8 ' 15K 74 ~ i728 1 ~ W? A E 1116 'ER "mD 2 LN2824 8.5" STC MFDSHL ' 3X16 4445, 7268' 2823. 22.25 126.8 26K 213 ' 2~26' ' ' NOT GRADED 3 1'07i6 8.5"' HYCA I DS?0FGNPv 3X'12 3X13 7268" 12129, '4861" 63' ' 77.2' 12K 227 ' 277~' 3 3 m A X 1'1/16 I 'CT 4' B13SX 8.5"' HTC ATJ.PSO5D 3X16 12129, 12915' 786' 27' 29.1 37K ~29 3~26 3 3 CT A 3 I 0 '1 .BT pTD 5' 6464R 6" HTo STR-09D '3Xl2 12915" 13282' 367; ' 16.75' '21:9' 19K' ' i37 351'2' NOT GRADED ' I ,, · ,, ,, chevbit.xls Sambuca #1 Well Review Agenda March 1!'h, 1998, AAi Headquarters Building, 2-4pm Meeting Objectives Provide a status report on the activities conducted under the DN~Well Operations Approval and the AOGCC Surface Commingling Approval 2:00-2:15 2:15-2:30 2:30-3:15 3:15-3:45 Welcome and Introductions Brief Overview · Location Map · Well Objectives G&G Review · Logs · Maps Completion & Testing Review · Completion Diagram · Sambuca · Simplified Chronology of Events · Test Results · Midnight Sun · Simplified Chronology of Events · Test Results Harvey Masterson Brizzolara Erickson Smalstig 3:45-4:00 Wrap Up Q&A All BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 March 24, 1998 ....,) Commissioner D. W. Johnston Alaska Oil & Gas Conservation Commission~ 3001 Porcupine Drive Ancho~~_J~laska~5~ RE: (~Sa~e~udhoe Bay Unit, Sambuca and Midnight Sun Oil Pools --F6Yms 10-409( Well Status Report and Gas-Oil Ratio Tests) Well Temporary Shut-in Condition Dear Commissioner Johnston' Please find the attached 10-409 forms for the Sam #1 well. The Sam #1 well is the discovery well for the Sambuca and Midnight Sun Oil Pools. Currently, the Sam #1 well is temporarily shut-in: pending arrangements to tieqn to the E-Pad flowline and produce. Please note that the appraisal well test was performed with a portable separator / metering unit and was not corrected for final shrinkage factors. Laboratory P'CT analysis is available for the Ivishak fluid to correct for separator / stock tank shrinkage. Laboratory PVT analysis is pending for the Kuparuk fluid to correct for separator / stock tank shrinkage. Sam #1 was tested in the Ivishak from 12/20/97 through 1/5/98 (including build- ups), tested in the Kuparuk from 1/20/98 through 2/7/98 (including build-ups), and temporarily shut-in on 2/8/98. Please find the attached wellbore diagram. An XXN plug has been set in the XN landing nipple at 13025' (just above the Ivishak perfs). Crude oil and 60 bbls of diesel were left in the tubing. A BBE subsurface safety valve has been set at 2211'. The subsurface safety, surface safety, wing, and swab valve were left in the closed positions. An operator visits E-Pad daily. ~SteveDeckert Staff Engineer Prudhoe Bay Unit SLD:sld Enclosures (4) cc: RE 85.31 State of Alaska Alaska Oil and Gas Conservation Commission WELL STATUS REPORT AND GAS-OIL RATIO TESTS Name of Operator: BP Exploration (Alaska) Inc. Field and Pool: Prudhoe Bay / Sambuca Unit or Lease Name: Address: P.O. Box 196612, Anch., AK. 99519-6612 Reporting Period: 12/20/97 - 1/5/98 I Pressures, psi Length Production Durin~l Test Gas-Oil Ratio APl Number Date of ,.Choke Separato~ of Test Water Gravity Oil Gravity Gas Cu. Ft. Well Name and No 50- Test Method Size Tubin~l Casing Separator Temp. °F (Hrs.) Bbls. Oil Bbls. Gas MCF Per Bbl. Sam #1 029-22819 12/23/97. Flow 48 220 540 181 90 16 100 24 618 0.722 273 442 Sam #1 029-22819 12/27/98 Flow 48 240 150 185 95 6.5 47 24 288 0.722 110 382 Sam #1 029-22819 12/28/98 Flow 48 248 850 190 93 15 120 24 739 0.722 368 498 GOR calculated is based on Portable Well Test Separator measurements of separator pressure gas and Stock Tank measurements of oil. The separator gas measurement does not include the volume of gas flashed from the separator oil to the stock tank oil, thus is lower than true GOR. The PVT lab sample suggests that 111 SCFG/STBO were flashed from separator pressure to stock tank pressure. I I The recombined PVT lab sample suggests that 426 SCFG/STBO had been flashed from reservoir pressure to separator pressure. The recombined PVT lab sample thus SU~lgests a true flash separator solution GOR of 537 SCFG/STBO. i All tests reported herein were made in accordance with the applicable rules, regulations and instructions of the Alaska Oil and Gas Conservation Commission. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed Title Date State of Alaska Alaska Oil and Gas Conservation Commission WELL STATUS REPORT AND GAS-OIL RATIO TESTS Name of Operator: BP Exploration (Alaska) Inc. Field and Pool: Prudhoe Bay / Midnight Sun Unit or Lease Name: Address: P.O. Box 196612, Anch., AK. 99519-6612 Reporting Periol 1/20/98 - 2/7/98 taell Name and No m#1 am #1 Iam#1 APl Number 50- 029-22819 029-22819 029-22819 I / I Pressures I Date ofI ~Choke / / I Test IMethod~ Size I Tubing FasingiSeparatoI 2/6/981Fl°w / ~ I 965 /~30 / 390 I 2/6/981F'°w /38 I ~0 /~° ! 3~0 I I Length I Production During Test I Gas-Oil Ratio Separator I of Test I Water I GravityIoi, IGravity~ Gas I Cu. Ft. T~m,. o, I (Hrs./ I ,b,s. I Oi, I ,b,s. / Sas/MC"I ,~r,~,. ~ I 11 I 0 I 29 I 869 / 0.~/ ~0~1 ~ 82 I 6 I 0 I 29 I 762/0.~/3451 453 90 i 13 i 0 i 29 i~/0.7/837I 376 GOR calculated is based on Portable Well Test Separator measurements of gas (STP) and oil (STP with combination shrinkage & meter factor). The separator gas measurement does not include the volume of gas flashed from the separator oil to the stock tank oil, thus is lower than actual solution GOR. The recombined PVT lab sam has not ,et been anal, 'zed to determine the true flash se )arator solution GOR SCFG/STBO' All tests reported herein were made in accordance with the applicable rules, regulations and instructions of the Alaska Oil and Gas Conservation Commission. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed Title Date Tree: CIW, 4-1/16", 5,000 psi Actuator: Baker, "CAC" Wellhead: FMC, 11", 5,000 psi 4-1/2", 12.6 #/ft, L-80, Btrs A/B Mod Tubing D = 3.958" I9-5/8", 47#/ft, I L-80, Btrs NB Mod Sam #1 IKOP = 400' Max Hole Angle = 56.7° @ 3,940' KB Elev = 69.0' BF Elev = 33.95' 4-1/2" SSSV Landing Nipple HES, "HXO", 3.813" ID Gas Lift Mandrels Camco, KBG-2-LS, 1" Pocket No. MD(BKB) TVDss Dev. 6 3,401' 3,001' 47.2° 5 5,101' 4,008' 53.4° 4 6,751' 5,002' 52.2° 3 8,441' 6,006' 53.4° 2 10,084' 7,002' 51.9° 1 11,533' 7,901' 49.4° 'X' Nipple 3.813" ID Baker "S-3" Packer ~75" ID 3 -1/2", 'X'; Nipple .813" ID /LEG (E-Line Depth 11,609'I 1 ,620'1 11,646' 11,648' Top of 4-1/2" Liner (5.25" ID Tie Back Sleeve 111,845' L-80, Btrs A/B Mod 12,906' Perforation Summary REF LOG: BHC/GR (11/24/97) SIZE SPF INTERVAL STATUS 2-1/2" 4 13,155' to 13,165' !Open 2-7/8" 6 13,150' to 13,155' I Open 2-1/2" 4 11,775' to 11,795' Open Open I Sqz'd Perfs Perfs Baker "ZXP" Liner er Packer t -1/2", 'X'; NippleI .813" ID 3 -1/2", 'X'; Nipple .813" ID 4-1/2",; 'XN'; Nipple I 3.725 ID "XXN" Plug in Place 01/11/98 IFill Olean Out to 13,183' I PBTD I4-1/2", 12.6#/ft, L-80, Btm A/B Mod 113,189' ~-~~ 113,277'~ Date 11/30/97 Rev. By M 12/20/97 MDM 12/26/97 MDM Add Perforations 01/20/98 MDM ROPE Perforate Comments Initial Completion ROPE Perforate 111,852' [ I12,901' ] i 13,025' i PRUDHOE BAY UNIT WELL: Sam #1 APl No' 50-029-22819 Sec. 06, T11N, R14E BP Exploration (Alaska) WAYBILL 5631 Silverado Way, Suite G Time Shipped: Anchorage, AK 99518-1654 TO I FROM I (delete non-applicable) TO I FROM (delete non-applicable) Sperry-Sun Dril, l~ng Services Shipped from :~'~ ( .?~--~~ 5631 Silveraclo-Way, #G~-~' ~-~ "~ Anchorage, AK 9951811654 (~/~C; ~ ~_~) CARRIER & WAYBILL #: CLIENT & JOB #: I~PECIAL INSTRUCTIONS/COMMENTS: REASON FOR SHIPMENT ITEM NO. QTY PART # SERIAL # DESCRIPTION 3 6 7 8 ~' ~ ~:",¢ ~,._. ~7 20 NOTE: SPECIAL CONDITIONS (indic~e applicable) 1. Inner Packages in Item(s) comp~ with prescri~d Sp~ications listed on A~ached Ship.rs Declaration 2. Inner Packages in Item(s) comp~ with prescribed S~c~ications for "Flammable Solids Dangerous G~ds" S~ A~ached Ship.rs Declaration 3. Inner Packages in Item(s)~comp~ with prescribed S~c~bations for "Radioactive Materials Dangerous Goods" S~ A~ached Ship.rs Declaration Vehicle Must Dis¢ay ~di~ctive Placards WHITE - Recipient YELLOW - Carrier PINK - Originator GOLD - Originator BP EXPLORATION, Alaska Date: Trans# O2-O4-98 88722 SAM-01 SATELLITE LOG DATA & DISKS Enclosed is the materials listed below. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4944. sw Name I Log Type Rec Date Co. Code MD Top MD Base Comments ,~AM-01 PERF 01/19/98 SCH 11,650. 12,014. ROPE PERFORATING RECORD 2 1/2 HSD @ 4SPF Nadene Reichert Petrotechnical Data Center STATE REPORTS DIRECTIONAL LOG DATA ARCO -W. Campaine DNR - T. Ryherd EXXON-D. Foster AOGCC-survey/disk ARCO-survey/disk EXXON-survey/disk DNR - survey/disk AOGCC- 1 tape/1 blueline/1 sepia ARCO- 1 tape/1 blueline/1 sepia Exxon- 1 tape/1 blueline/1 sepia DNR - 1 diskJ 1 blueline BP - Alistair Bent- 1 blueline Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchora(~e, Alaska 99519-6612 WAYBILL Mail Invoices To: Sperry-Sun Drilling Services Date Shipped: 5631 Silverado Way, Suite G Time Shipped: Anchorage, AK 99518-1654 TO I FROM I (delete non-applicable) TO I FROM (delete non-applicable) S perry-Su n--Drilllng Services Shipped from:~_,~ ~,~~,f~ 5631 Silverado Way, Anchorage, AK 99518-1654 ~¢~---~ '~~,/-~ ~ q ~Ooc~ ~..-_ / CARRIER & WAYBILL #: CLIENT & JOB #: SPECIAL INSTRUCTIONS/COMMENTS: REASON FOR SHIPMENT If bM NO. QTY PART # SERIAL # DESCRIPTION 7 11 16 / 19 2O NOTE: SPECIAL CONDITIONS (indicate applicable) 1 Inner Packages in Item(s) comply with prescribed Specifications listed on Attached Shippers Declaration 2.Inner Packages in Item(s) comply with prescribed Specifications for "Flammable Solids Dangerous Goods" See Attached Shippers Declaration 3.Inner Packages in Item(s) comply with prescribed Specifications for "Radioactive Materials Dangerous Goods" See Attached Shippers Declaration Vehicle Must Display Radioactive Placards , WHITE - Recipient YELLOW - Carrier PINK - Originator GOLD - Originator BP EXPLORATION, Alaska Date: 01-19-98 Trans# 88722 BP/PBU SATELLITE LOG DATA & DISKS Enclosed is the materials listed below. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4944. Sw Name Log Type Rec Date Company Code Comments SAM-01 MUDLOG 11/23/97 EPOCH FORMATION LOG SAM-01 MUDLOG 11/23/97 EPOCH WELL RESUME, DRILLING AND FORMATION iSUMMARY, LITHOLOGY SUMMARY, SURVEY, FORMATION LOGS, BIT RECORDS, AND DISK IN ASCII FORMAT IN BINDER Petrotechnical Data Center · STATE REPORTS DIRECTIONAL LOG DATA ARCO -W. Campaine DNR - T. Ryherd EXXON-D. Foster AOGCC-survey/disk ARCO-survey/disk EXXON-survey/disk DNR - survey/disk AOGCC- 1 tape/1 blueline/1 sepia ARCO- 1 tape/1 blueline/1 sepia Exxon- 1 tape/1 blueline/1 sepia DNR- 1 disk/1 blueline BP - Aiistair Bent- 1 blueline Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 BP EXPLORATION, Alaska Date: 01-13-98 Trans# 88773 BP/PBU OPEN HOLE FINALS BP/PBU CASED HOLE FINALS Enclosed is the materials listed below. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4944. Sw Name I Rec Type Rec Date Company Code Comments SAM-01 CH 12/12/97 SCH ' ' GR/CCL DEPTH DETERMINATION SAM-01 ICH 12/19/97 SCH PERFORATING RECORD 2 1/2 4 SPF DH, DP SAM-01 CH 12/26/97 SCH !PERFORATING RECORD 2 7/8 6 SPF DH, DP Please sign and return one copy of this transmittal letter. Thank-you, David B Ward Petrotechnical Data Center STATE REPORTS DIRECTIONAL LOG DATA ARCO -W. Campaine DNR - T. Ryherd EXXO-D. Foster AOGCC-survey/disk ARCO-survey/disk EXXON-survey/disk DNR- survey/disk AOGCC - 1 tape/1 blueline/1 sepia ARCO - 1 tape/1 blueline/1 sepia Exxon - 1 tape/1 bluelineJ1 sepia DNR - 1 disk/1 blueline BP - Alistair Bent- 1 blueline Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 BP EXPLORATION, Alaska Date: 1/6/98 SAMBUCA - 01 Enclosed is the replacement for the black and white "ultrasonic imager" that I had sent out earlier. Please note, there are no changes in this data from the last copy, the only difference is that this copy is in color to better serve your needs. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4944. Please sign and return one copy of this transmittal letter. David B Ward Petrotechnical Data Center Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 BP EXPLORATION, Alaska Date: Trans# 12/3197 88740 BP/PBU SATELLITE DIRECTIONAL DATA State of Alaska AK Oil & Gas Conservation Comm. Attn: Howard Okland 3001 Porcupine Drive Anchorage, Alaska 99502 Enclosed is the materials listed below. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4944. GYRODATA SURVEY Sw Name Type Date Co. Comments SAM-01 GYRO 12/12/97 GYRODATA GYRO SURVEY W/DISKETTE Please sign and return one copy of this transmittal letter. Thank-you, David B Ward Petrotechnical Data Center DIRECTIONAL LOG DATA AOGCC - 1 tape/1 blueline/1 sepia AOGCC-survey/disk Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 BP EXPLORATION, Alaska Date: Trans# .. ~.' 12/19/97 88723 BP/PBU SATELLITE DIRECTIONAL DATA BP/PBU SATELLITE LOG DATA & DISKS State of Alaska AK Oil & Gas Conservation Comm. Attn: Howard Okland 3001 Porcupine Drive Anchorage, Alaska 99502 DEC 22 ~997 .Aiaska Oil & G~s Cons. Com~s~i0~ A,qohom,~ Enclosed is the materials listed below. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4944. DIRECTIONAL SURVEY SAM-01 IMWD 11/24/97 SPERRY MWD SURVEY LOG DATA Sw Name Type Date Co. Run Num Comments SAM-01 OH 11/10/97 SCH 1 SUB SEA TVD SAM-01 OH 11/10/97 SCH 1 BOREHOLE PROFILE ;SAM-01 OH 11/13/97 SCH 1 REPEAT FORMATION TESTER SAM-01 TAPE 11/23/97 SPERRY 4-6 MWD/MPT/GRC/EWR/ROP - BIT RUNS 4-6 SAM-01 OH 11/23/97 SPERRY 6 TVD - MWD/DGR/EWR4 SAM-01 OH 11/23/97 SPERRY 6 MWD ROP/DGR/EWR4 SAM-01 OH 11/24/97 SCH 1-2 DIPHOLE SHEAR SONIC / BH COMPENSATED SONIC SAM-01 OH 11/24/97 SCH ,2 PLATFORM EXPRESS ARRAY INDUCTION LOG SAM-01 OH 11/24/97 SCH 2 PLATFORM EXPRESS RXO/MCFL LOG SAM-01 OH 11/24/97 SCH 2 COMPENSATED NEUTRON LQG SAM-01 OH 11/24/97 SCH 2 REPEAT FORMATION TESTER SAM-01 OH 11/24/97 SCH 1-2 THREE DETECTOR DENSITY COMPENSATED NEUTRON LOG SAM-01 TAPE 11/24/97 SCH 1-2 COMP. OF OH RUNS 1 & 2, AIT/DSI/BHC/PLATFORM EXPRESS/CMR SAM-01 OH 11/24/97 SCH 2 PLATFORM EXPRESS SUBSEA TVD LOG i SAM-01 CH 11/28/97 SCH I1 ULTRASONIC IMAGER I Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 Please sign and return one copy of this transmittal letter. Thank-you, David B Ward Petrotechnical Data Center DIRECTIONAL LOG DATA AOGCC-survey/disk AOGCC- 1 tape/1 blueline/1 sepia Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 BP EXPLORATION, Alaska Date: Trans# 12/19/97 88723 BP/PBU SATELLITE DIRECTIONAL DATA BP/PBU SATELLITE LOG DATA & DISKS State of Alaska AK Oil & Gas Conservation Comm. At-tn: Howard Okland 3001 Porcupine Drive Anchorage, Alaska 99502 Enclosed is the materials listed below. If you have any questions please contact me in the Petrotechnical Data Center at (907) 564-4944. DIRECTIONAL SURVEY SAM-01 IMWD 11/24/971SPERRY MWD SURVEY LOG DATA Sw Name Type Date Co. Run Num Comments SAM-01 OH 11/10/97 SCH 1 SUB SEA TVD SAM-01 OH 11/10/97 SCH 1 BOREHOLE PROFILE SAM-01 OH 11/13/97 SCH .1 REPEAT FORMATION TESTER SAM-01 TAPE 11/23/97 SPERRY 4-6 MWD/MPT/GRC/EWR/ROP - BIT RUNS 4-6 SAM-01 OH 11/23/97 SPERRY 6 TVD - MWD/DGR/EWR4 SAM-01 OH 11/23/97 SPERRY 6 MWD ROP/DGR/EWR4 SAM-01 OH 11/24/97 SCH 1-2 DIPHOLE SHEAR SONIC / BH COMPENSATED SONIC SAM-01 OH 11/24/97 SCH 2 PLATFORM EXPRESS ARRAY INDUCTION LOG SAM-01 OH 11/24/97 SCH 2 PLATFORM EXPRESS RXO/MCFL LOG SAM-01 OH 11/24/97 SCH 2 COMPENSATED NEUTRON LOG SAM-01 OH 11/24/97 SCH 2 REPEAT FORMATION TESTER SAM-01 OH 11/24/97 SCH 1-2 THREE DETECTOR DENSITY COMPENSATED NEUTRON LOG SAM-01 :TAPE 11/24/97 SCH 1-2 :COMP. OF OH RUNS I & 2, AIT/DSI/BHC/PLATFORM EXPRESS/CMR SAM-01 OH 11/24/97 SCH 2 PLATFORM EXPRESS SUBSEA TVD LOG SAM-01 CH 11/28/97 SCH 1 ULTRASONIC IMAGER Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 Please sign and return one copy of this transmittal letter. Thank-you, Petrotechnical Data Center DIRECTIONAL LOG DATA AOGCC-survey/disk AOGCC- 1 tape/1 blueline/1 sepia Petrotechnical Data Center, MB3-3 900 East Benson Boulevard, P.O. Box 196612, Anchorage, Alaska 99519-6612 TONY KNOWLE$. GOIt'ERNOR DEPARTMENT OF NATURAL RESOURCF.~ DIVISION OF OIL AND GAS 3601 "C" STREET, SUITE 1380 ANCHORAGE, ALASKA 99503-5948 PHONE: (907) 269-8800 December 9, 1997 BP Exploration (Alaska) Inc. 900 East Benson Blvd. P.O. Box 196612 Anchorage, Alaska 99519-6612 Via Fax (564-4637) and Attention: John R. Denis PBU New Business Development Subject: ~ell Operation Dear Mr. Denis: Your December 5, 1997 letter requested approval to conduct a plan of testing, evaluation and pilot production of the Sam-01 Well. Your letter stated that the "testing will occur under existing authorizations that provide for use of IPA production facilities..." The letter did not disclose the "existing authorizations." Follow-up conversations with BPXA, as operator of the well, disclosed that the existing authorizations are PBU Working Interest Owner ballot authorizations IPA 96-168, IPA 96-187, and IPA 96-187(Amended) (collectively Ballot Authorizations). Your plan of testing, evaluation, and pilot production of the Sam-01Well is approved subject to the following terms and conditions: 1) This approval is only for 120 on-line days of testing during the 12 months after the well's spud date and only for testing of the well under the Ballot Authorizations. If the Ballot Authorizations are modified in any manner whatsoever, the approval is immediately terminated. The operator, however, may apply for continued approval under the modified ballot authorization. 2) A status report of the activities conducted under this approval must be provided to the division of oil and gas within the ninetieth day of testing unless the division grants an extension. The status report should list the spud date of the well and state whether the well is capable of producing or contributing to production of hydrocarbons in paying quantities to justify developing and producing the reservoir(s)in which the well was ~~ ~ ~V E Na~ka 011 & ~as "Develop, Conserve and Enhance Natural Resources for Present and Future Alaskans" Mr. John Denis December 9, 1997 Page 2 3) The individual well test data (the test separator production reports) for each month of test production and the monthly production (oil, gas and water) allocated to the lease shall be provided to the division as soon as it is available, but no later than the end of the 120 day test period. The lessees of ADL 28299 shall individually account for the production allocated to the lease from the Sam-01 Well on the monthly royalty reports. 4) Commingling of Sam-01 production fluids with IPA fluids through the IPA facilities is approved for the period of the test only. 5) No field costs will be deducted from the state's royalty share of production associated with the testing of the Sam-01 Well unless allowed by a future resolution including an agreement, an administration decision, or a final judicial decision. A resolution allowing a field cost deduction will be retroactively applied to the test production. Sincerely, (~~--Kenneth A. Be y~d~ Director cc: Jim Branch - Exxon Marcia Davis - BPXA Mark Worcester - ARCO PBU.S am01 test. wpd BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 November 25, 1997 VIA FAX Mr. David W. Johnston, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501-3192 RE' Request to Commingle Test Production from Sam #1- Well Permit #97-188 Dear Chairman Johnston: ~ '~ ~/Uc,.~ ,) P'"~ As you are aware, BP as PBU WOA Operator on behalf of the lease owners, ARCO and Exxon has drilled a well that is bottomed on T12N-R14E. Section 30 within ADL 28299 known as Sam #1. The Sam #1 was drilled to a total depth of 13282' MD (9372 TVDss). This well will be tested across the Kuparuk and Ivishak formations separately; thus, no approval is requested for downhole commingling. Facility tie-in work for well testing is in progress, and the well is expected to be ready for test production in early December. Consistent with existing practices, BP requests approval by the AOGCC on behalf of ARCO and Exxon to commingle production with other pools for processing at PBU Gathering Center 1 during the testing period. Production allocation will be based on the existing well test methodology approved by the AOGCC, based on well tests conducted at E-pad. If you have any questions, please contact me at (907) 564-4623. Sincerely, John R. Denis PBU New Business Development RECE'iVED CC: S. Harvey- ARCO R. Huerta- Exxon K. Boyd- DNR J. Pilkington- DeR ~aska Oil & Gas Cons. Commission ,Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 November 25, 1997 VIA FAX Mr. David W. Johnston, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501-3192 RE' Request to CpJ~ Test Production from Sam #1- Well Perl~~~- _ Dear Chairman Johnston'~~ ~.~ As you are aware, BP as PBU WOA Operator on behalf of the lease owners, ARCO and Exxon has drilled a well that is bottomed on T12N-R14E. Section 30 within ADL 28299 known as Sam #1. The Sam #1 was drilled to a total depth of 13282' MD (9372 TVDss). This well will be tested across the Kuparuk and Ivishak formations separately; thus, no approval is requested for downhole commingling. Facility tie-in work for well testing is in progress, and the well is expected to be ready for test production in early December. Consistent with existing practices, BP requests approval by the AOGCC on behalf of ARCO and Exxon to commingle production with other pools for processing at PBU Gathering Center 1 during the testing period. Production allocation will be based on the existing well test methodology approved by the AOGCC, based on weii tests conducted at E-pad. If you have any questions, please contact me at (907) 564-4623. Sincerely, John R. Denis PBU New Business Development CC: S. Harvey- ARCO R. Huerta- Exxon K. Boyd- DNR J. Pilkington- DeR RECEIVED Naska 0il & Gas ~ns. Commission Anchorage TONY KNOWLE$, GOVEF~NOF~ ALASKA OIL AND GAS CONSERVATION COMMISSION 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 27~.14,.33 FAX: (907) 276-7542 December 4, 1997 Mr. John R. Denis PBU New Business Development BP Exploration (Alaska), Inc. P.O. Box 196612 ~ Anchorage, AK 99519-6612 ~F~/ [ Subject: Sam #1 - Surface Commingling of Test Production Dear Mr. Denis: The Commission received your letter dated November 25, 1997, requesting permission to commingle undef'med pool production from either the Kuparuk or Ivishak formations in the Sam # 1 well with that of the Prudhoe Pool production originating at E-Pad. Your request is for surface commingling only and that there will be no downhole commingling of the formation fluids from the Ivishak and Kuparuk formations. Production from Sam #1 should be reported separately to the Sambuca Undefined Pool, pool number 640155, for those months the well is tested. Attached is a summary of the standard allocation procedures for commingling fluids from different pools. These procedures have been developed over the last several years and can serve as a guideline for allocating the fluids from the test operations. We look forward to hearing results of the test. If there any questions regarding commingling or reporting procedures, contact Jack Hartz at 279-1433 ext. 232. David Johnsto~n.. Chairman Attachment cc: K. Boyd, DNR/DOG J. Pilkington, DOR sambcomm. DOC Surface Commingling and Common Facilities Production from the Sambuca Undefined oil pool may be commingled on the surface with production from other pools for processing at PBU GC1 prior to custody transfer. b, Production from each well will be determined by the following well test allocation methodology. Allocation data and well test data will be supplied to the Commission monthly in both computer file and report formats. i. Conduct well tests to determine production rates for each well. ii. Calculate each well's theoretical monthly production (TMP) based on well test rate(s) and actual time on production. iii. Sum the TMP volume for all wells in all pools. iv. Determine an allocation factor as the ratio of the metered volume to the TMP for all wells in all pools (i.e., meterect/TMP) v. Calculate each well's actual monthly production (AMP) volume as: AM1) = TMP x Allocation Factor Co NGL's will be allocated to each pool based on actual gas production volumes and NGL process simulations. Process simulations will be updated at least once per year based on NGL samples and results reported to the Commission. d, Each producing well will be tested at least twice each month. Wells that have been shut in and cannot meet the twice-monthly test frequency must be tested within five days of startup. All available test separator capacity within the constraints imposed by operating conditions must be utilized for well testing. e. Optimum test duration and stabilization time will be determined on a well by well basis by the operator. Water volumes will be determined by API/MPMS approved methods, or the use of industry proven on-line water cut measurement devices approved by the Commission. g. API gravity will be determined for each producing well annually by an API/MPMS approved method. h. Gas samples will be taken and analyzed for composition from each non gas lifted producing well yearly. ~97 05:3£PM BPU M~M~EMEMT P.2 BP EXPLORATION November 25, 1997 VIA F/~Z _w Mr, David W. Johnston, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501-3192 RE: Request.to_C_qm__ mingle Test Pmdu~ipo f. rom S_em #1- Well Permit_~9_7_~ Dear Chairman Johnston: As you are aware, BP as PBU WOA Operator on behalf of the lease owners, ARCO and Exxon has drilled a well that is bottomed on T12N-R14E, Section 30 within ADL 28299 known as Sam #1, The Sam #1 was drilled to a total depth of 13282' MD (9372 TVDss). This well will be tested across the Kuparuk and Iviehak formations separately; thus, no approval is requested for downhole commingling, Facility tie-in work for well testing is in progress, and the well is expected to be ready for test production in early December, Consistent with existing practices, BP requests approval by the AOGCC on behalf of ARCO and Exxon to commingle production with other pools for processing at PBU Gathering Center 1 during the testing period, Production allocation will be based on the existing well test methodology approved by the AOGCC, based on well tests conducted at E-pad, If you have any questions, please contact me at (907) 564-4623, Sincerely, .. ~,. ~/ PBU New Business Development CC'. S. Harvey- ARCO R. Huerta- Exxon K. Boyd- DNR J. Pilkington- DOR RECEIVED 199 Alas~ 011 & {]as C~.s. TONY KNOWLE$, GOVERNOR ALASKA OIL AND GAS CONSERVATION COMMISSION ()ctober 8. 1997 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 [_) alq btoltz Senior Drillino_ En_oineer. Actino_ BP Exploration (Alaska) Inc. POBox 196612 .--Xnchorage. AK 99519-6619 Prudhoe Bay Unit Sam #1 BP Exploration (Alaska). Inc. Permit No. 97-188 Sur. Loc. 5000'NSL. 500'WEL. Sec. 06. TI IN. R14E. UM Btmnhole Loc. 2837'NSL. 1557'WEL. Sec. 30. TI2N. R14E. UM Dear Mr. Stoltz: Enclosed is the approved application Ibr permit to drill the above referenced well. The permit to drill does not exempt you from obtaining additional permits required bv law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. A weekly status report is required from the time the welt is spudded until it is suspended or plugged and abandoned. The report should be a ,generalized synopsis of the week's activities and is exclusively for the Commission's internal use. Blmvout prevention equipment (BOPE) must be tested in accordance xvith 20 AAC 25.035. Sufficient notice (approximately 24 hours) of the BOPE test performed before drilling below the surface casing shoe must be given so that a representative of the Commission may xvitness the test..Notice mav be given by contacting the Commission petroleum field inspector on the North .Slope pager at 659-3607. ~Robert N. Christenson ' Commissioner BY ORDER OF THE COMMISSION dlf/Enclosures cc: Department of Fish & Game. Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA L. :, ALASKA. ,L AND GAS CONSERVATION COM~llSSlOI~ CONFiDeNTiAL PERMIT TO DRILL 20 AAC 25.005 la. Type of work [] Drill [] Redrill Ilb. Type of well [] Exploratory [] Stratigraphic Test [] Development Oil [] Re-Entry [] DeepenI []Service [] Development Gas []Single Zone [] Multiple Zone 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exploration (Alaska) Inc. Plan RKB = 68.18' Prudhoe Bay Field / Prudhoe !3. Address 6. Property Designation Bay Pool P.O. Box 196612, Anchorage, Alaska 99519-6612 ADL 028299 4. Location of well at surface 7. Unit or Property Name !11. Type Bond (See 20 AAC 25.025) 5000' NSL, 500' WEL, SEC. 06, T11N, R14E, UM (As Planned) Prudhoe Bay Unit At top of productive interval 8. Well Number Number 2S100302630-277 2681' NSL, 1537' WEL, SEC. 30, T12N, R14E, UM Sam #1 At total depth 9. Approximate spud date Amount $200,000.00 2837' NSL, 1557' WEL, SEC. 30, T12N, R14E, UM 10/13/97 12. Distance to nearest property line113. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) ADL 384405, 2443'I No Close Approach 2560 13361' MD / 9500' TVDss 16. To be completed for deviated wells 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} Kick Off Depth 600' Maximum Hole Angle 53° Maximum surface 3891 psig, At total depth (TVD) 9500' / 4840 psig 18. Casing Program Specifications Setting Depth Size Top Bottom Quantity of Cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 30" 20" 91.5 H-40 Weld 80' Surface Surface 80' 80' 260 sx Arctic Set (Approx.) 12-1/4" 9-5/8" 47# L-80 BTC 4475' Surface Surface 4475' 3620' 1528 sx PF 'E', 335 sx Class 'G' 8-1/2" 7" 29# L-80 BTC 12892' Surface Surface 12892' 9056' 493 sx Class 'G' 6" 4-1/2" 12.6# L-80 IBT-Mod 650' 12742' 8898' 13361' 9500' 109 sx Class 'G' 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs(measured)0RIC INAL true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cemented MD TVD Structural Conductor Surface Intermediate Production - Liner ST~? Z '~ ~997 Perforation depth' measured ~_$~,L~ ¢~ ~ ~&$ true vertical 20. Attachments [] Filing Fee [] Property Plat [] BOP Sketch [] Diverter Sketch [] Drilling Program [] Drilling Fluid Program []Time vs Depth PIct [] Refraction Analysis [] Seabed Report [] 20 AAC 25.050 Requirements Contact Engineer Name/Numb??: Greg West, 56~-4803 Prepared By Name/Number: Terrie Hubble, 564-4628 21.1 hereby certify~4~;t t/~e foregoinC,~e ~/orrect to the best of my knowledge Tim¢~ E~'/'? .,.~'~-'~_~ ~;_¢~ ¢ Title Senior Drilling Engineer, Acting Date Commission Use Only Permit Number APl Number I Apprpv,al Date See cover letter ~:>,.~,-.//~=~' 50- <::~2. ~'-- 2~, ~.. ~>/c:~I /l,~(~l'~'~ for other requirements Conditions of Approval: Samples Required []Yes [] No Mud Log Required~'----~ I~Yes [] No Hydrogen Sulfide Measures []Yes ]R:] No Directional Survey Required ]~Yes []No Required Working Pressure for BOPE []2M; []3M; ~:]5M; []1OM; []15M Other: ORIGINAL SIGNED' BY by order of Approved By Robert N. Chdstenson Commissioner the commission Date Form 10-401 Rev. 12-01-85 Submit ~ ;ate IWell Name: I Sam #1 Well Plan Summary Type of Well (producer or injector): lAppraisal I Surface Location: 5,000' FSL, 500' FEL, T11N, R14E, S6 X = 664447, Y = 5976785 Target Location: 2681' FSL, 1537' FEL, T12N, R14E, S30 X = 663200, Y = 5985000 Bottom Hole Location: 2837' FSL, 1557' FEL, T12N, R14E, S30 X = 663176, Y = 5985154 I AFE Number: 14P0983 I I Rig: I Doyon 9 Estimated Start Date: I 10/13/97 I I Operating days to complete: MD: 113,361' I ITvD: 19,500ss I I Well Design (conventional, slimhole, etc.): 126 [RKB ~68.18' I Conventional ultra-slimhole "S" Shaped Evaluate Reservoir Quality and Hydrocarbon presence in the Sag River, Ivishak, and (if I IObjective: I present) Sierra Nevada Reservoirs Mud Proqram Surface Mud Properties: Fresh water bentonite I 12-1/4" hole section spud mud I Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 8.6 300 40-60 30-60 50-80 8.5 15-25 to 9.6 150-200 20-45 15-25 20-40 10 10-15 Intermediate Mud Properties: Fresh Water LSND 8-1/2" hole section changed to 3%KCI system before entering Sierra Nevada Density Viscosity Yield 10 sec 10 min Filtrate (PPG) Point gel gel Initial LSND 8.8-9.0 35-40 12-15 3-6 8-12 8-10 Final LSND 9.6-10.0 40-45 10-20 4-10 8-15 6 3% KCI Mud Density Viscosity Yield 10 sec 10 min Filtrate (PPG) Point gel gel 10.2-10.5 45-50 12-15 4-8 8-12 <10.0 HPHT · The fluid for the Kingak Interval will be built with 2 ppb baranex and 5 ppb baroltrol to ensure tight filtration control. Production Mud Properties: Cleaned up 3% KCI 6" hole section mud from previous intermediate section Density Viscosity Yield 10 sec 10 min Filtrate (PPG) Point gel gel 9.8-10.0 45-55 15-25 4-8 8-12 4.6 APe% CONFiDENTiAL Directional KOP: Maximum Hole Angle: Close Approach Well: +_600' MD (estimated) +_53° None Formation Markers Formation Tops MD TVD (SS) Base Permafrost 1,977' 1,875' SV3 4,443' 3,600' 4,475' 3,620' Surface Casing Point, Set 9-5/8" 20'TVD into SV3 SV2 4,705' 3,760' SV1 5,360' 4,160' UG4 6,164' 4,650' Some minor overpressure could be present due to water disposal UG3 6,574' 4,900' UG1 7,557' 5,500' WS2 8,410' 6,020' WS1 8,770' 6,240 CM3 9,196' 6,500' Top Sierra Sand/CMl 11,000' 7,600' Secondary Target, assume to be virgin reservoir pressure THRZ 11,390' 7,840' BHRZ 11,540' 7,940' Tkingak 11,791' 8,120 fault in Kingak interval Tsag 12,882' 9,050' Intermediate Casing Point in Sag, Primary Target, Sag is assumed to be at virgin pressure, may however be underpressure Shublik 12,947' 9,111' TSAD 13,020' 9,180' Primary Target, assume to be virgin reservoir pressure OWC 13,042' 9,200' TD 13,361' 9,500' Production Liner Point, TD Casing/Tubinc. Proc ram -....- v v Hole Size Csg/ Wt/Ft Grade Conn Length Top Btm Tbg O.D. MD/TVD MD/TVD 30" 20" 91.5# H40 WELD 80' surface 80'/80' 12-1/4" 9-5/8" 47# L-80 BTC 4475' surface 4475'/3620' 8-1/2" 7" 29# L-80 BTC 12892' surface 12892'/9056' 6" 4-1/2" 12.6# L-80 I BT-Mod 650' 12742'/8898' 13361 '/9500' tubing 4-1/2" 12.6# L-80 I BTM od 12883 surface 12892'/9056' CO FiD NT!AL Cement Lead Cement Tail Cement Casin~l/Liner Sx / Wt / Yield Sx / Wt / Yield Comments 9-5/8" 1528/12.0/2.17 335/15.8/1.15 Cement circulated to surface, 300% Surface Csg. Permafrost "E" excess in permafrost, Class "G" 7" Intermediate 493/15.8/1.15 Tail Class "G", Top 1000' above Sierra Nevada 4-1/2" Liner 109/15.8/1.15 150' liner lap, TOC 200' above TOL, Class "G" Volume assumptions: Gauge hole + 50% excess; 80' shoe joints; TOC as listed. Logging Proc ram Logs: 12-1/4" Hole MWD Directional Only 8-1/2" Hole 6" Hole DPC Logs: MWD directional / GR / Res from 7000' TVDss to intermediate casing point MWD directional / GR / Res GR/RES/DEN/NEU/SONIC(platform express w/sonic) + CMR + RFTs across the Sierra Nevada (if present) and across the Sag and Ivishak Well Control Well control equipment consisting of 5,000 psi W.P. pipe rams, blind rams, and annular preventer will be installed and will be capable of handling maximum potential surface pressures. Diverter, BOPE and mud fluid system schematics on file with AOGCC. The Sierra Nevada, Sag River, and Ivishak reservoirs will be drilled under the assumption that they are at Prudhoe Bay virgin pressure of 9.8 ppg EMW. Maximum anticipated bottom hole pressure is 4841 psi at 9500'TVDss. Maximum anticipated surface pressure assuming gas in entire annulus (0.1ppg) is 3891psi at 9500 TVDss. Hazards E Pad is not a designated H2S pad; the last sample taken was 16ppm (12/95) Ugnu may be slightly overpressure due to water disposal. Be prepared for losses in the Sag and Ivishak intervals. These intervals will be drilled overbalance under the assumption of original reservoir pressure. Losses may occur if the formations are underpressure. Be prepared for losses in the transitions at the reservoir interfaces. Disposal Cuttings should be hauled to the ball mill at CC-2A. Fluid Handling: Haul all drilling and completion fluids and other class II wastes to CC-2A for injection. Haul all Class I wastes to Pad 3 for disposal. In addition, haul all cuttings from drilling operations to CC-2A for disposal. Sam#1 Short Well Summary Rig 1. 2. Work: MIRU. NU diverter and function test same. Drill 12-1/4" hole to +_4476'MD/3688'TVDss in the SV3 sands. Run and cement 9-5/8" 47# L-80 casing to surface with Halliburton ES cementer (two stage surface cement job). 3. Install Blow out prevention equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annular preventer. Function test BOPE to 250/5000 psi. 4. Test 9-5/8" casing to 3000 psi for 30 minutes. Perform a formation leak-off test after drilling out the 9- 5/8" shoe and 20' of new hole. 5. Directionally drill 8-1/2" hole with MWD/GR to base of CM3 interval. 6. Swap LSND mud system to 3% KCI polymer mud. Continue drilling with MWD/GR/RES as per directional plan to 7" casing point 10' into the Sag at 12892'MD/9056'TVDss. 7. Run DPC Iogs(GR/RES/DEN/NEU/SONIC/CMR) from top sierra Nevada sands to TD. 8. Run DPC RFTs across Sierra Nevada Sands. 9. Run and cement 7" 29# L-80 casing to surface and cement with Premium cement to 1000' above the Sierra Neveda sands. Test casing to 3500 psi. 10. Drill 7" shoe and 20' of new formation with 0.5 ppg over mud weight (Formation integrity test). 11. Drill 6" hole with MWD/GR/RES as per directional plan to TD @13,361'MD. 12. Run DPC logs (GR/RES/DEN/NEU/SONIC/CMR)to TD. 13. Run RFTs across the Sag and Ivishak intervals. 14. Run and cement 4-1/2" 12.6# L-80 drilling solid liner (150' of lap inside 7" casing). Test Casing. 15. Run and set a production packer with tubing tail at the top Ivishak (used to isolate Ivishak during well testing after rig departure). 16. Run 4-1/2" L-80 tubing completion with 7 Slimhole GLMs, SSSV, and a 4-1/2" x 7" production packer set in the 7" casing at @12,000'MD. 17. Test tubing and annulus. Set TWC.~ ~ ~ :~:,, ~ ~ ~,~ ~ ~ .~ BP CO~FI~NTIAL 18. ND BOP, NLI and test tree. 19. Pull TWC, freeze protect, set BPV, RDMO. CONFiD NTiAL .PRELIMINARY Weft: Sambuca DrillQuest' M~706,.0O N, ~ E FLK~ i: 2OO0 8OOO 9 5/8" C~[ng, 4475,58 lv[~, 3685.l 8 ~ I I [I I II I I I -2~ 0 Scale: I inch =, 2(XX}ft $cction ~,~imuth: 352.619 CT~'u¢ North) Vertical Saction ?" Cuing, 12682.41 ~. ~1 Iii.ts 'rVO 4 ]~" ~iw, i;}361.29 MD, 9,,(~ll,J$ OWC I I I ! I ] I ¢ I I I t ; t f 1 I I I I I T I I'T'-~I ( T i"r'"[ I i , i i , i I ' 2O0O 4000 ' ~ 80O0 ,~,le~,ll C~.~l~r~lee: CONFiDENTiAL PRELIMINARy Wall: Sambuca DrillQUeSt' W L~,~MJen NM 7500 1500 -- 0 ' Scale: linch =. 150Oft -4500 Eastings -1500 4 !~2" J_.inc~. 13361.29 M~, 9568. t6 'TVI) 7" Casing, 12882.41 MI). 911g. 18'I'VD ~ -,,aM 9 5/8" Casing, 4475.58 MD, 3688.18 'FVD -3000 - [500 o l.soo 0 1500 3000 3O00 i500 Eastings t Propoeel Target Summary T~ ~: 'l'Vl~ez l'%fDf~b: Sperry-Sun Drilling Services Proposal Report for Sambuca. Sambuca Wp8 CO ','-FtD NTiAL Sharecl Services Drilling North Slope AK State Plane Zone4 PBU_WOA E Pad Measured Depth Ift) Incl. Azim. Sub-Sea Depth 0.00 O.OOe 0.000 -68.18 500,00 0.0~ 0,000 431.82 600.00 !.000 352.600 531,81 700.00 2.000 352.600 631.78 800.00 3.000 352.600 731.68 I)O0.O0 4.000 352;600 831.50 1000.00 5.000 352.600 931.19 1100.00 7.000 352.600 1030.63 1200.00 9.(~) 352.600 1129.65 1300.00 11,0G0 352.600 1228.13 1400.00 13.000 352.600 1325.94 1500.00 15.000 352.600 1422.96 1600,~ $7.000 352,600 1519.09 1700.00 19.000 352.600 1614.19 1750.00 20.000 352.600 t661.32 1977.40 20.000 352,600 1875,00 2000.00 20.000 352.600 1BINL24 2037~6 20,000 352.600 1931,82 2100.00 21.864 352,603 1969,~ 2200.00 24.864 352.606 20~1 2300.00 27.864 352.609 2171,23 2400.00 30.864 352.611 225838 2500,00 33.864 352.613 2:342,83 2600.00 36.864 352.614 2424.37 2700.00 39.83641 352.616 2502.77 2800,90 42.864 352,617 25'77.81 2900.00 45.864 352.618 2649,30 3000.00 48.884 352.619 2717.0<2 3100.00 51.964 352.620 2780.81 3118.17 52.409 352.620 2791.96 Vertical Local Coordinales Depth Nodhings Eastings In) (fl) (ft) O.O0 500.00 599,99 699.96 799.86 699,68 999,37 10~.81 1197.83 1296.31 1394,12 1491.14 1587.27 1682.37' 1729.50 1943.18 1964.42 2000.00 2iL~8.0e 2149,82 2239.41 2411.01 2492.55 2570,95 2645.99 2717.48 2785.20 264a,96 2860,14 0.00 N 0.00 E 0.00 N 0.00 E 0.67 N 0.11 W 3.46 N 0.45 W 7.79 N 1.01 W 13.84 N 1.80 W 21.62 N 2.81 W 31.99,N 4.15 W 4s,~' N 5.95 W 63,01 N 8.16 W 63.62 N 10.86 W 107.61 N 13.98 W 134,95 N 17.53 W 165,69 N 21.51 W 162.14 N 23.68 W 25927 N 33.67 W 266,93 N. 34,67 W 279,77 N · 36.34 W 301,79 N 39.19 W 341.11N 44.30 W 385.14 N 50.01 W 433.77 N 56.32 W 465.85 N 63.20 W 54424 N 70.64 W 605.76 N 76,62 W 671.31 N 67.11W 740.64 N 96.09 W 813,59 N 105.54 W 88~.~6 N 115.44 W 904.19 N 117.28 W Folder Reference l:l~jleg Vertical Northings Eestings Rate Section (fl) (fi) (°t~0Ofl) 5976785,00 N 664448.00 E 5976785.00 N 664448.00 E O.OOO 5~76785.88 N 664447.67 E 1.000 5976768.45 N 664447.47 E 1.000 5976792.76 N 664446.82 E 1.000 5976798.60 N 6M445,~ E 1.000 5976806.55 N 664444,72 E !.000 5976816.69 N 664443,15 E 2.0,00 5976830.65 N 664441,05 E 2.080 5976847.81 N 664438.44 E 2.000 5976868.37 N 664435.31 E 2.006 597689228 N 664431,67 E 2.000 5976619.53 N 664427.52 E 2.008 5976950.08 N 684422.87 E · 2,000 5976966.58 N 66442035 E 2.000 5977043.46 N 66440~65 E 0.000 5977051,11 N 664407.48 E 0.000 5977{~.91 N 6N40554 E O.O00 . 5977085.86 N 664402,19 E 3,000 5977125.0~ N 66439623 E 3.lXX) 5977168.95 N 6643119.5.5 E 3.008 5977270~4 a 664374.13 E 5977327.S~ N 664365.44 E 3.000 59773e8.9~ N 6643~.1~ E 3.000 597745424 N 664346.18 E 3.000 5977523,36 N 664335.68 E 3.000 5977596.0B N 664324.63 E 1000 597767221 N 664313.07 E 3.000 5977~6.40 N S643~0.9~ E 3~000 0.00 0.00 0.87 3.49 7.85 13.96 21.90 32.26 46,17 63.54 94.33 108.52 138,08 166.lNI 183,67 261,44 269J? 282.12 437.41 490.~ 610.66 748,65 830,41 897.41 911.76 Comment Ba~ Pem'mfro~ -1- c z Sperry-Sun Drilling Services Proposal Report for Sambuca- Sambuca Wp9 Shared S~rvices Drifting North Slope AK State Plane Zone4 PBU_WOA E Pad I~.asured IncL Azim, i~th (fi) 4475.58 52,409 352.620 3620.00 4500.00 52.409 352,620 3634.9~ 470S.0~ 52.409 3r~..620 37S0.00 50~.00 52.409 352.626 3939.90 5360.80 52,409 352.620 416O.00 5500,00 52.409 352.620 4244.91 6o00.00 52,409 352.520 4549,92 S~64.~6 52.4~ ~..620 465O.00 6573.S9 52.409 3.~.,620 49~0.00 7557,47 52.409 352.620 5500.00 9196,77 52.409 352.620 6500.01) 10000.m 52.409 352.620 69as.e8 1o500,00 52.409 352,620 7294.99 11ooo,0o 52,409 352,620 7600.0o 11261~1 52.409 352,620 7759,79 ]1389.78 49.853 352.620 7840,00 moo.oo 49.~ 3~2.r,2o ?~.61 Vertical Local Coordir~s Det~h Nmlhings Eastings ~) (lq (~) 3093.06 1204.23 N 156.14 W 3398.07 1597,15 N 207.03 W 3~668.18 1~15,11 N 252.10 W 36~8.18 1970~7 N 255.44 W 3703.08 1990,06 N 257.92 W 3828,18 2151.22 N 278.80 W 4008.~ 2:~i2.97 N 306,82 W 4228.18 2~550.N 345.54 W 4313.09 2775.8~ N 359.71 W 4618.10 3168.80 N 410.60 W 4718.15 3297,72 N 42'/'.~O W 4923,1I 3561.71 N 461.49 W 4968,18 3619,77 N 469,01 W 5228,127 3854.62 N 512.38 W 55~12 4347.54 N 5632'/W 5565.16 4392,70 H 569.12W 5838.13 4740.45 N 614.16 W a)8~,18 50~2.56N ' 655..~W 6143,14 5133,36 N 665.08 W 630~.18 5345.97 N 692.59 W 6448.15 552~.27 N 715.95 W 6568.18 5680.90 N 7~5.98 W 67S3.15 5919:[9 N 7r~.e4 w 7058.16 6312.10 N 817.73 W 7~3.17 6~.ol U er, e.~ w 76r~,18 70g?.93 N 9~).5~ w 7827.97 7303.77 N 946.17 W 7851,38 7333,52 FI 950.03 w 7908.16 7402.46 N 958.96 W 7914,79 741020 N 959.96 W 12 S~O~J~', 1997- I4:31 Folder Reference Dogleg Northlngs F..asflngs Rate (~) ¢) (orsooe) 5977985,52 N 597837722 N 5976724,11 N 5978749,79 N 5978768.92 N 5978929.59 N 5979160.83 N 5979443.28 N 5979552.33 N 5979944.03 N 5980O72.56 N 5980335.73 N 5980~93.61 N 51NI0727.43 N 598! 119.13 N 5961164,16 N 5081510.84 N 5981931.mi N 5981902.54 N 59~114.49 N 5im229424 N 59ea44~.3e N 5062685,94 N 5983077.64 N 5883469.34 N 5983861.05 N 5984066.25 N 5964095.91 N 5984164.65 N 5984172.36 N 6642~.4~ E O. DO0 664205.98 E 0,6O0 664163.29 E 0.000 664149.36 E O.(X)O 664146,45 E 0.000 664122,08 E 664086,~ E 0.000 664044.D5 E 0,000 664O27.49 E 0,000 663967.B9 E 0,O00 663948,47 E 603908,49 E 663899.70 E 663848.9g E 0.1X]O 0.0~O 0.000 SS3789,49 E 0.000 663/82.66 E 663720.06 E 663681.22 E 663670.,,~) E 6(G638.30 E 663~11.00 E 663587.58 E 663651.60 E 663492.00 E 663432.50 E 663373,01 E 663341.84 E 66,1,337.33 E 663326.8,9 E 663325.72 E , 0.000 0.0IN)' 0.0CO 0.080 0,000 0,000 0.003 0.030 0.IX)l) 0.000 0.000 2.000 2,000 2,000 Vertical Section C~mment ¢) 1214.32 1610.,51 1961.38 $V3 1987.35 9 5/8' Ca~ng 2006.71 2169.21 SV2 2402.90 2683.6O SV1 2799.00 316G.29 3325.29 UG4A ~350,03 UGh1 4429.41 4780.07 5176,26 .5.m)O,~ WSI 5728.38 Cid3 ' 5968,65 6761.04 7157.24 Top Sierra S, ml(:ls I CMl 7364,60 7464.32 THRZ 7472.12 Sperry-Sun Drilling Services Proposal Report for Sambuca. Sambuca Wp8 BP CO , F!D NTJAL Shared Services Drilling North Slope AK State Plane Zone4 PBU_WOA E Pad Measured Sub-Sea Vertical Local Coordinates Depth Incl. Azim. OepIh Depth Northings Eastlngs {f~) ~) (fi) irt) Folder Reference Dogleg Verlical Norlhings Eastings Rate Section (ft) (ft) (°/lOOft) (ft) 11500.00 47.648 352.620 7912.67 7980,85 7484.64 N 969.60 W 11540.26 46.943 352.620 7940.00 B00~.18 7513.96 N 973.40 W 11600.00 45.648 352.620 7981.31 8040.49 7,556.75N 976.94 W 11700.00 43.646 352.620 8052.45 8120.63 7626.44 N 987.9'/W 11791.96 41.84)9 352.620 6120.00 6168.16 7666.32 N 96~.98 W 111~[X).00 41.648 352.F:20 8126,00 8194.18 7(i~i.63 ~ 996,67 W 11900.00 39.648 352.620 6201.67 8270.05 775823 N 1005,04 W 12000.00 37.64,8 352.620 9279.97 8346.15 7920.16 N 1013,06 W 12100.00 35.648 352.620 6360.19 6428.37 7679,35 N 1020,73 W 122(X).00 33.648 352.620 8442.46 6510.64 7935.73 N 1028.0~ W 123(X).00 31.648 352.620 6526.65 8594.83 79~9.23 N 1034,96 W 12400.00 29.648 352.620 6612.68 8680,86 8039.76 N 1041,51 W · 12500.00 27.648 352.620 9700,43 8768,61 8067.32 N 1047.66 W 12600,00 25.648 352.620 8789,60 9857,98 8131.80 FI 1053,43 W 12700.00 23,648 352.620 8880,69 8948.87 8173,16 N 1058,76 W 12800.00 21.648 352.620 8972.97 9041.15 8211.35 N 1063.73 W 12882.41 20.000 3.52.619 9050.00 91 18.18 6240,40 N 1067.49 W 12941.33 20.000 352.619 9111.00 91/9.18 8262.42 Id' ' 1070.34 W 13000,00 20,060 352,81g 9160,49 9228.67 828028 Id 1072.66 W 13020,78 20.000 352.619 9180.00 9248,16 6287.32 N 1073,57 W 13042.04 20.000 352.619 9200.00 9268.1e 6294.54 N 1074.61 W 1336129 20.000 352.619 9500.00 9568.18 8402,.83 N 1088.53 W 5984246.57 N 663314.45 E 2.D00 7547.19 5994275.80N ' 663310.01 E 2.000 7576.75 5984318.46 N 66330163 E 2`000 7619.90 5984367.93 N 663292.97 E 2.000 7690.17 5984449.62 hi 663283.60 E 2.04)0 7752.56 5984454.91 N 663282,80 E 2.000 7757.91 5964519.31 N 663273,02 E 2.000 7823.05 5964561.05 N 663263.64 E 2.000 7885.50 5984640.06 hi 663254.67 E 2.000 7946.19 $9~169627 FI 663246.14 E 2.000 8602.04 5994749.60 N 663238.04 E 2.000 8055.99 5964800.00 N 663230.~ E 2.000 8106.96 5984847.40 N 663223,18 E 2.000 8154.90 5984891.74 N 663216.45 E 2.000 8109./5 66~1932.97 Id 663210.18 E 2.000 8241.45 5084971.04 N 663204.40 E 2.000 82'79.96 5985000.00 N 663200,00 E 2,000 8309.26 58i5021~ N 663196.67 E 0,000 8331.46 5965099.76 N 663193.96 E 0.000 8349.47 5985046.78 N 663192.89 E 0.000 6356.57 598505;3.96 N 663191.60 E * 0.000 836335 5985161.93 N 663175,40 E 0.000 8473,04 All data is in feet unless otherwise stated. Directions and coordinates are relative to Tree North. Vertical depths are rebtive to Well. Northings and Easfings are relative to Well, Based upon Minimum Cuwature type calculations, al a Measured Depth o113361,29ft,, The Bottom Hole Displacement is 8473.04ft., in the Direction 04 352.619o ('rme). -3- Comment DATE CHECK NO. I VENDOR DATE INVOICE / CREDIT MEMO DESCRIPTION GROSS DISCOUNT NET 073197 r. ,r',.-~, -7 ~ i00. O0 _ . · ._,F, ul._,!¥. F, i00 O0 HANDLING-'- INST- s/h teT-,~-ie hobble x 46a8 rilE ATTACHED CHECK IS IN PAYMENT FOR rrEMS DESCRIBED ABOVE. I~e ~]~ ~ -~ t",,~"~ r~t~ i r%rt F%f-I · WELL PERMIT CHECKLIST COMPANY FIELD & POOL INIT CLASS z¢ ,/ PROGRAM: exp [] dev [] redrll [] serv [] wellbore seg El ann. disposal para req [] WELL NAME ~ f-~ ~ GEOL AREA ~;' ?~ UNIT# ,,,'~,/~ ON/OFF SHORE ~,~J ADMINISTRATION D..AT.E × ENGINEERING APPR GEOLOGY , REMARK:,S 1. Permit fee attached ....................... ~ U ;~ ,,~ ~".~..~,,../,,~ to.J-., ..-.,,-¢~,,.~ ,~ /, r m'~.. ~/,---~ ,.-/ 2. Lease number appropriate ................... ~N ~.,.~.~, ' '// ~/~ '-'-'/ .... 3. Unique well name and number .................. N , //m,' ~_,,.. , .... ? - ,_-~' 4. W elllocatedinadefined,ool .................. ~~e ~, e.~--~ ~ ~~¢ 5. Well located proper distance from drilling unit boundary .... ,/ ~ .~¢~_ ..~ _,..~, ~.., 6. Well located proper distance from otherwells .......... _~-~N~N ,,,,"¢_,.~,,..,,,,~-"¢_.~¢~,~'/ ' ~,.~" ........ ~,,~/-- /,~,,~ 7. Sufficient acreage available in drilling unit ............ ~N ' L~ ....... / "-- 8. If deviated, is wellbore plat included ............... 9. Operator only affected party ................... N~,~N 10. Operator has appropriate bond in force ............. 11. Permit can be issued without conservation order ........ 12. Permit can be issued without administrative approval ...... 13. Can permit be approved before 15-day wait ........... 14. Conductor string provided ................... (~ N 15. Surface casing protects all known USDWs ........... (~ N 16. CMT vol adequate to circulate on conductor & surf csg ..... 17. CMT vol adequate to tie-in long string to surf csg ........ 18. CMT will cover all known productive horizons .......... ~)NNN 19. Casing designs adequate for C, T, B & permafrost ....... 20. Adequate tankage or reserve pit ................. 21. If a re-drill, has a 10-403 for abandonment been approved... 22. Adequate wellbore separation proposed ............. ((~ N~" ~-" 23. If diverter required, does it meet regulations .......... N 24. Drilling fluid program schematic & equip listadequate ..... Y(,.~ N 25. BOPEs. do they meet regulation ................ 26. BOPE press rating appropriate; test to ~ psig. N . 27. Choke manifold complies w/APl RP-53 (May 84) ..... '.. 28. Work will occur without operation shutdown .......... ' 29. Is presence of H2S gas probable ................ .¢~..~,.~~~.~.~__~(..~ 34. Contact name/phone for we.ekly.prog, ress repo. rts ....... ~ N lexptora~ory on~yj 30. Permit can be issued w/o hydrogen sulfide measures. 31. Data presented on potential overpressure zones 32. Seismic analysis of shallow gas zones. 33. Seabed conditionsu~ey(ifoff-shore). ~ ~ ~ ~ ~,~.~ ~ Comments/instructions: GEOLOGY: ENGINEERING: COMMISSION: JDH ~ RNC~ CO HOW/Ijt- A:\FORMS\cheklist rev 09/97