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Home My WebLink About204-189 · . Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. ~Q 4: - L ~ 9- Well History File Identifier Organizing (done) o Two-sided ""111111111"1111 R~CAN ¢' Color Items: o Greyscale Items: DIGITAL DATA ttbiskettes, No. ~ o Other, Norrype: o Poor Quality Originals: o Other: NOTES: BY: ~ Dale I /:J..j D 7 Project Proofing BY: ~ Date: 11~/D7 á. x 30 = faD + Date: 11'-/07 Scanning Preparation BY: ~ Production Scanning Stage 1 fos (Count does include cover sheet) V YES Page Count from Scanned File: BY: Page Count Matches Number in Scanning Preparation: Date: 1/ d-/ 67 ~ Stage 1 If NO in stage 1, page(s) discrepancies were found: BY: Maria Date: Scanning is complete at this point unless rescanning is required. ReScanned BY: Maria Date: Comments about this file: o Rescan Needed 111111111111111111I OVERSIZED (Scannable) o Maps: o Other Items Scannable by a Large Scanner OVERSIZED (Non-Scannable) o Logs of various kinds: o Other:: vvt~ 151 1/11111111111111111 vvvP Isl 4- = TOTAL PAGES t,4- (Count does not include cover sheet) '^AJ~() 151 r 'r r 111111111111111111I 151 NO vvvP YES NO 151 1II1IIIII1II1111111 1/1111111111111111I Isl Quality Checked "I 11111I11I111111I 10/6/2005 Well History File Cover Page. doc • STATE OF ALASKA • • ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1 a. Well Status: ❑ Oil ❑ Gas ❑ SPLUG ❑ Other ® Abandoned ❑ Suspended 1 b. Well Class • 20AAC 25 105 20AAC 25110 ❑ Exploratory ❑ Stratigraphic ❑ GINJ ❑ WINJ ❑ WAG ❑ WDSPL ❑ Other No. of Completions Zero - ® Development ❑ Service 2. Operator Name: 5. Date Comp., Susp., or Aband.: 12. Permit to Drill Number: BP Exploration (Alaska) Inc. 11/25/2012 • 204 - 189' 312 - 308 3. Address: 6. Date Spudded: 13. API Number: P.O. Box 196612, Anchorage, Alaska 99519 - 6612 10/8/2004 50 029 - 20576 - 01 - 00 • 4a. Location of Well (Governmental Section): 7. Date T.D. Reached: 14. Well Name and Number: Surface: 10/14/2004 PBU E -20A • 1743' FNL, 883' FEL, SEC. 06, T11N, R14E, UM 8. KB (ft above MSL): 59.11' • 15. Field / Pool(s) Top of Productive Horizon: 4138' FNL, 1436' FWL, SEC. 05, T11N, R14E, UM GL (ft above MSL): Prudhoe Bay Field / Prudhoe Bay • Total Depth: 9. Plug Back Depth (MD +TVD) Oil Pool 4136' FNL, 1452' FWL, SEC. 05, T11N, R14E, UM 9530' 8593' 4b. Location of Well (State Base Plane Coordinates, NAD: 10. Total Depth (MD +TVD) 16. Property Designation: Surface: x - 664103 • y - 5975313 • Zone ASP4 • 10050' 9109' . ADL 028304 . TPI: x- 666482 y- 5972970 Zone- ASP4 11. SSSV Depth (MD +TVD) 17. Land Use Permit: Total Depth: x- 666498 y 5972972 Zone- ASP4 None 18. Directional Surve 19. Water depth, if offshore: 20. Thickness of Permafrost (TVD): y ❑Yes ® No (Approx.) A (Submit electronic and printed information per 20 AAC 25.050) N ft MSL 1900' ( PP ) 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22. Re -Drill /Lateral Top Window MD/TVD: DIR / GR / PWD, DIR / GR / RES / NEU / DENS 8767' 7907' 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD SETTING DEPTH TVD HOLE AMOUNT CASING WT. PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" x 30" Insulated Conductor Surface 110' Surface 110' 36" 8 cu yds Concrete 13 -3/8" 72# L -80 30' 2699' 30' 2699' 17 -1/2" 2627 cu ft Arcticset 11 9 -5/8" 47# L -80 29' _ 8767' 29' _ 7907' 12 -1/4" 1292 cu ft Class 'G', 130 cu ft AS 1 7" 26# L -80 3462' 9425' 3446' 8493' 8-1/2" 213 cu ft 'G', 466 cu ft 'G', 163 cu ft 'G' 4 -1/2" 12.6# L -80 9266' 10050' 8349' 9109' 6 -1/8" 162 cu ft Class 'G' 24. Open to production or injection? ❑ Yes ® No 25. TUBING RECORD If Yes, list each interval open SIZE DEPTH SET (MD) PACKER SET (MD / TVD) (MD +TVD of Top & Bottom; Perforation Size and Number): 4 - 1/2 ", 12.6#, 13Cr80 9273' 9216' IRE GENt 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. WAS HYDRAULIC FRACTURING USED DURING COMPLETION ?❑ Yes ® No flFC 212012 DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED r 9530' Set Whipstock 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, Gas Lift, etc Not on Production N/A Date of Test Hours Tested. Production For OIL -BBL: GAS -MCF: WATER -BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period Flow Tubing Casing Press: Calculated OIL -BBL: GAS -MCF: WATER -BBL: OIL GRAVITY -API (CORR): Press. 24 -Hour Rate 28. CORE DATA Conventional Core(s) Acquired? ❑ Yes ® No ' Sidewall Core(s) Acquired? ❑ Yes ® No , 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 ch f}�s fpddabr�rabr ytical results per 20 AAC 250.071. None II 1IVVl1HHtt(( VV 11 Fifi,1:1 S. DEC 2 1 m1 G Form 10-407 Revised 10/2012 CONTINUED ON REVERSE Submit Original Only /Z' [L t3 y � (z. 29. GEOLOGIC MARKERS (List all formations an arkers encounter 30. FORMATION TESTS NAME TVD Well Tested . Yes ® No , Permafrost Top If yes, list intervals and formations tested, briefly summarizing test Permafrost Base results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Sag River 9460' 8526' None Shublik A 9478' 8543' Shublik B 9497' 8561' Shublik C 9520' 8583' Sadlerochit 9540' 8603' Top CGL 9698' 8758' Base CGL 9790' 8850' 22TS 9800' 8860' 21 TS 9845' 8904' Zone 1B 9860' 8919' Zone 1A / TDF 9902' 8961' Base Sadlerochit 9983' 9042' Formation at Total Depth: 31. List of Attachment: Summary of Daily Drilling Reports and Post -Rig Work, Well Schematic Diagram, Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Matt Ross, 564- 2 Email: Matt.Ross @bp.com Printed Name: Joe stufk Title: Drilling Technologist Signature:. Phone 564 - 4091 Date: I2-'/ o 1) 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 well schematic diagram with each 10 -407 well completion report and 10 -404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection, Water Injection, Water - Alternating -Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. 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 4b: TPI (Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation 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 13: 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 28. 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 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. Form 10 -407 Revised 10/2012 Submit Original Only • • Common Well Name: E -20 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 11/22/2012 End Date: 11/28/2012 X3- 01129- C:E20BCTD (2,095,370.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: NORDIC 1 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017"W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/22/2012 00:00 - 01:00 1.00 MOB P PRE PREPARE RIG FOR RIG MOVE TO E -PAD. HAUL TRAILERS OFF LOCATION, ALL NON- MOBILE EQUIPMENT MOVED OFF LOCATION. 01:00 - 01:30 0.50 MOB P PRE PJSM FOR RIG MOVE. ASSIGN POSITIONS, DISCUSS HAZARDS AND COMMUNICATION. MOVE INTO POSITIONS, TEST EDC, ALL GOOD, 01:30 - 01:45 0.25 MOB P PRE MOVE RIG OFF OF D-29. SPOT RIG ON EDGE OF PAD AND MONITOR RIG WHILE WAITING ON SECURITY TO ARRIVE FROM DOYON 14 RIG MOVE. 01:45 - 02:30 0.75 MOB P PRE CONDUCT ROUTE DRIVE FROM D -PAD TO E -PAD WITH TOOLPUSHER AND DRILLER TO ENSURE ROUTE CLEAR FROM PREVIOUS RIG MOVE BY DOYON 14 02:30 - 03:00 0.50 MOB P PRE ROUTE DRIVE_COMPLETE. PJSM ON MOVING RIG. SECURITY IN PLACE, ALL PERSONNEL SWOTTED IN POSITION. 03:00 - 07:30 4.50 MOB P ® PRE MOVE RIG FROM D -PAD TO E -PAD 07:30 - 21:00 13.50 MOB P PRE RIG SPOTTED ON SIDE OF E -PAD WHILE WAITING ON WIRELINE WORK TO BE COMPLETED. CONCURRENT WORK: GREASE CHOKE MANIFOLD, REEL HOSE AND SHAKER. CHANGE OUT SHAKER JACK LEG, FLEX HOSE ON ACCUMULATOR UNIT AND VALVE ON TEST PUMP. 21:00 - 00:00 3.00 MOB P PRE WAITING ON PAD PREP TO BE COMPLETED FOR RIG TO MOVE OVER. STAGE EQUIPMENT. MOVE SATELLITE CAMP TO OPPOSITE SIDE OF PAD. 11/23/2012 00:00 - 01:00 1.00 MOB P PRE WAIT ON FINAL PAD PREPARATION. CONDUCT INSPECTION, ALL GOOD. GET PERMIT SIGNED OFF BY PAD OPERATOR. 01:00 - 01:30 0.50 MOB P PRE PJSM WITH CREW, NORDIC FIELD SUPERINTENDENT, WSL, SCS. DISCUSS POSITIONS, TIGHT TOLERANCES, RIG MAT LOCATIONS ON CORNERS. 01:30 - 03:30 2.00 MOB P ._ PRE MOVE RIG AROUND PAD TO E -20. POSITION RIG OVER WELL. RIG ACCEPT 0330 HRS. 03:30 - 06:00 2.50 RIGU P PRE PREPARE FOR RIG OPERATIONS 06:00 - 09:30 3.50 BOPSUR P PRE NIPPLE UP BOPE 09:30 - 10:00 0.50 BOPSUR P PRE RIG UP TEST EQUIPMENT AND FUNCTION TEST BOP AT REMOTE STATIONS. AOGCC REP BOB NOBLE WAIVED WITNESS OF THE BOPE TEST. 10:00 - 18:00 8.00 BOPSUR P PRE TEST BOPE / IBOP, SAFETY, CHOKE AND KILL LINE VALVES / 2" COMBI /2 3/8" X 3 1/2" VBR / 2" COMBI / BLIND SHEAR RAMS / ANNULAR / INJECTOR 18:00 - 18:30 0.50 RIGU P -_ PRE RIG EVACUATION DRILL WITH DAY CREW AND 3 RD PARTY PERSONAL Printed 12/10/2012 11:25:26AM � a Common Well Name: E -20 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 11/22/2012 End Date: 11/28/2012 X3- 01129- C:E2OBCTD (2,095,370.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: NORDIC 1 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.0179 Active Datum: ORIG KELLY BUSHING ©60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:30 - 19:15 0.75 RIGU P PRE HEAD UP WITH BAKER LEFT HANDED COIL CONNECTION. PRESSURE TEST TO 4K, PULL TEST TO 25K. GOOD TESTS. PULL COIL TO SIDE AND CIRCULATE COIL. 19:15 - 21:00 1.75 BOPSUR P PRE PRESSURE TEST DUAL FLAPPER CHECK VALVES AND NIGHTCAP. CLEAR AND CLEAN RIG FLOOR, PREP TO MU NIPPLE MILLING BHA. 21:00 - 21:30 0.50 RIGU P PRE SIMULATE RIG FIRE AND CONDUCT RIG EVACUATION DRILL. CREW RESPONSE TIME LESS THAN 2 MINUTES TO MEET AT PRIMARY MUSTER AREA. CONDUCT AAR. 21:30 - 21:45 0.25 BOPSUR P PRE BLOW DOWN METHANOL IN TIGER TANK LINE, ALL CLEAR FROM RIG TO TIGER TANK. OPEN TREE VALVES, FOR PRESSURE AND FLOW FROM WELL IN ACCORDANCE WITH WELL PLAN CRITERIA FOR OPENING UP. TO WELL. NO PRESSURE OR FLOW. REMOVE NIGHTCAP. WELL FLUID PACKED, STATIC. 21:45 - 22:15 0.50 DRILL P PROD1 MU LEFT HANDED NIPPLE MILLING BHA. DIAMOND MILL GAUGE 3.80" GO, STRING 'MILL 3.79" GO. 3.78" NO -GO. STAB ON WITH INJECTOR, PT QUICK TEST SUB. BREAK CIRCULATION, PRESSURE ON SHUT -IN GAUGE. DOWN ON PUMP, DOUBLE CHECK SURFACE LINES. ON WITH PUMPS AGAIN, STILL HAVE PRESSURE. CHECK LINE TO TIGER TANK, FROZEN AT COUPLING GOING OUTSIDE. SUSPECT FRESH WATER FROM BOP TEST WAS RELEASED WHEN CHOKE WAS OPENED TO CHECK WELL. 22:15 - 00:00 1.75 DRILL N PROD1 PUMP SMALL SPACER OF METHANOL BEHIND ICE PLUG WITH AIR PRESSURE ON BACK SIDE. PLACE STEAM ON LINE. MOBILIZE TRUNK HEATER TO WARM LINE. MONITOR WELL, WELL STATIC. 11/24/2012 00:00 - 01:00 1.00 DRILL N PROD1 WRAP PIPE WITH HERCULITE TO GET WARM AIR DOWN PIPE WHILE WAITING ON HEATER TRUNKS TO ARRIVE. WELL STATIC. 01:00 - 02:45 1.75 DRILL N PROD1 INSTALL HEATER TRUNK HALVES AROUND PIPE AND CONTINUE WITH ATTEMPT TO THAW LINE WITH HEATER TRUNK, STEAM LINE, AND METHANOL WITH AIR PRESSURE. WELL STATIC. LINE FINALLY THAWED, PUMPED METHANOL UNTIL FULLY CLEAR. CHASED WITH WARM KCL FROM PITS, ALL GOOD. 02:45 - 04:45 2.00 DRILL P PROD1 RIH WITH BHA PUMPING AT MIN RATE AND DISPLACING FREEZE PROTECT TO TIGER TANK. PUW 38K AT 9000'. CONTINUE RUNNING PAST 4 X NIPPLES WITH NO ISSUES. DOWN ON PUMPS, DRY TAG XN NIPPLE AT 9274'. PU, COME ON WITH PUMPS TO 2.5 BPM, FREE SPIN 1220 PSI. Printed 12/10/2012 11:25:26AM Common Well Name: E -20 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 11/22/2012 End Date: 11/28/2012 X3- 01129- C:E20BCTD (2,095,370.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: NORDIC 1 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °20'19.961 "1 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:45 - 06:30 1.75 DRILL P PROD1 BEGIN MILLING OPERATIONS AT 2.5 BPM, 1220 PSI AND SLOWLY MOVING INTO IT TO OBTAIN 4K WOB AND —1200 PSI DIFFERENTIAL PRESSURE. REAM THROUGH TWO TIMES. DOWN ON PUMPS AND DRY DRIFT THROUGH. 06:30 - 09:45 3.25 DRILL P PROD1 FLOW CHECK THE WELL / POOH TO BHA 09:45 - 10:15 0.50 DRILL P PROD1 FLOW CHECK AT BHA / REMOVE INJECTOR 10:15 - 11:00 0.75 DRILL P PROD1 "LAY DOWN LEFT HANDED BHA / GAUGE MILL (3.76) UPPER STRING MILL (3.77) CALL TOWN PROCEED WITH OPERATIONS 11:00 - 12:00 1.00 DRILL P PROD1 COIL SLACK MANAGMENT / PUMP SLACK BACK/ 12:00 - 13:00 1.00 DRILL P PROD1 RIG UP AND CUT COIL 305' 13:00 - 14:00 1.00 DRILL P PROD1 MAKE UP CTC # 7 / PULL TEST TO 45K AND PRESSURE TEST (FAILURE) 14:00 - 14:45 0.75 DRILL P PROD1 CUT AND REREAD / MAKE UP CTC # 8 / PULL _ TEST 44K AND PT 3950 PSI (GOOD TEST) 14:45 - 15:00 0.25 DRILL P PRODf RIG UP AND PUMP E -LINE FOWARD 15:00 - 15:30 0.50 WHIP P WEXIT - RIG UP AND PRESSURE TEST RISER AND INJECTOR CONNECTIONS 250 PSI / 3500 PSI (GOOD TEST) 15:30 - 16:45 1.25 WHIP P WEXIT MAKE UP WHIPSTOCK BHA 16:45 - 17:45 1.00 WHIP P WEXIT TEST DFCV (GOOD) 17:45 - 18:45 1.00 WHIP P WEXIT STAB ON WITH INJECTOR, PRESSURE TEST QUICK TEST SUB. BREAK CIRCULATION, GOOD RETURNS. 18:45 - 20:45 2.00 WHIP -- P WEXIT RIH WITH WHIPSTOCK BHA. NO ISSUES RUNNING DOWN. 20:45 - 22:00 1.25 WHIP P WEXIT BEGIN TO LOG TIE -IN AT 9480'. TIE -IN TO PDC LOG MARKER AT 9540' WITH -6.5' CORRECTION. PICK UP TO 9400' AND LOG CCL FROM 9400' TO 9600'. PICK UP TO 9520'. CONFIRM COLLAR LOCATIONS FOR WHIPSTOCK SETTING DEPTH. 22:00 - 22:30 0.50 WHIP P WEXIT RIH TO 9542'. PICK UP TO NEUTRAL WEIGHT. CONFIRM WHIPSTOCK ORIENTATION AT 200° FOR LOW SIDE EXIT. CLOSE EDC, PRESSURE UP TO SET WHIPSTOCK PACKER. POSITIVE INDICATION PACKER SET AT 3020 PSI. SET DOWN 5K TO CONFIRM SET. PICK UP TO RELEASE FROM WHIPSTOCK. TOP OF WHIPSTOCK SET AT 9530'. FLOW CHECK WELL, ALL GOOD. 22:30 - 00:00 1.50 WHIP P WEXIT DISPLACE TO 8.6 PPF POWERPRO MUD SYSTEM. 11/25/2012 00:00 - 01:00 1.00 WHIP P WEXIT POH WITH WHIPSTOCK SETTING BHA. FLOW CHECK AT SURFACE. PJSM ON LAYING DOWN BHA AND PICKING UP MILLING ASSEMBLY. 01:00 - 02:15 1.25 STWHIP P WEXIT LAY DOWN BHA. RUNNING TOOL AND ROD IN GOOD SHAPE. MU 3.80" MILLING BHA. DIAMIOND WINDOW MILL AND STRING MILL BOTH 3.80" GO. WINDOW MILL 3.79" NO -GO. STAB ON, PRESSURE TEST QUICK TEST SUB. Printed 12/10/2012 11:25:26AM Common Well Name: E -20 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 11/22/2012 End Date: 11/28/2012 X3- 01129- C:E2OBCTD (2,095,370.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: NORDIC 1 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °20'19.961 "1 Long: 0148°40'06.0171A/ Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:15 - 04:30 2.25 STWHIP P WEXIT RIH WITH MILLING ASSEMBLY. DOWN ON PUMPS, DRY TAG TOP OF WHIPSTOCK AT yi UNCORRECTED DEPTH OF 9537'. PICK UP, COME ON WITH PUMPS AND RE -TAG WHIPSTOCK AT UNCORRECTED DEPTH OF 9536'. CORRECT DEPTH TO 9530'. PICK UP • AND OBTAIN SLOW PUMP RATES. FREE SPIN 2950 PSI AT 2.55 BPM. crawl 04:30 - 07:00 2.50 STWHIP P WEXIT BEGIN MILLING OPERATIONS AT 2.50 BPM, 3005 PSI. TIME MILL FIRST FOOT. 3075 PSI AT 2.5 BPM, WOB 1.5K. SLOWLY INCREASE WOB TO 2.6K WITH 3140 -3160 PSI AT 2.55 BPM AFTER THE FIRST 1.2'. t 07:00 - 12:00 5.00 STWHIP P WEXIT CONTINUE WITH `MILLING OPERATIONS. �-,�- WOB VARYING BETWEEN 1.3 -4.2K. FREE j� m SPIN 2700 PSI AT 2.5 BPM. PRESSURE L VARYING 110 -240 PSI WHILE MILLING. 12:00 - 15:30 3.50 STWHIP P WEXIT MILLING OPERATIONS AT 2.5 BPM, 2830 -3000 PSI. EXITED WINDOW AT 9538'. CONTINUE MILLING PER WELL PLAN. TIME MILL LAST FOOT. 15:30 - 19:15 3.75 STWHIP P WEXIT TIME MILL FIRST TWO FEET INTO FORMATION AND CONTINUE TO DRILL INTO NEW FORMATION TO 9550'. PICK BACK UP TO REAM THROUGH WINDOW TWO TIMES. BOTTOMS UP SHOWS SILT / SANDSTONE. DRY DRIFT THROUGH WINDOW WITH NO ISSUES. PULL INTO WINDOW, FLOW CHECK. NO FLOW. 19:15 - 21:00 1.75 STWHIP P WEXIT POH WITH MILLING ASSEMBLY. FLOW CHECK AT SURFACE. PJSM ON LAYING DOWN BHA AND JETTING STACK. CONCURRENT OPS, COMPLETE LOADING PIPE AND BEGIN STRAPPING AND DRIFTING. 21:00 - 21:45 0.75 STWHIP P WEXIT POP OFF, BLOW DOWN BHA. LD MILLING BHA. WINDOW MILL AND STRING MILL GAUGE AT 3.79" GO, WINDOW MILL GAUGE AT 3.78" NO GO. 21:45 - 22:30 0.75 BOPSUR P WEXIT JET BOP STACK, INSPECT TREE BOLTS. ONE LOOSE, CALL OUT VALVE SHOP TO RE- TORQUE. POP OFF WITH INJECTOR. 22:30 - 23:15 0.75 DRILL P PROD1 MU BUILD BHA WITH HYCALOG 4.25" BI- CENTER BIT WITH TORQUE CONTROL CUTTERS, 2 -7/8" ULTRA LOW SPEED MOTOR WITH 2.83° BEND (AKO). STAB ON WITH INJECTOR, PRESSURE TEST QUICK TEST SUB. VALVE SHOP ON LOCATION TO TIGHTEN BOLT AND CHECK TORQUE ON REST. 23:15 - 00:00 0.75 DRILL P PROD1 RIH WITH DRILLING ASSEMBLY AND SHALLOW HOLE TEST MWD EQUIPMENT. CONTINUE TO RIH. 11/26/2012 00:00 - 02:15 2.25 DRILL P PROD1 RIH WITH 4.25" BUILD ASSEMBLY. OBTAIN SLOW PUMP RATES. MW IN AND OUT 8.6 PPG. LOG TIE -IN WITH -6.5' CORRECTION. Printed 12/10/2012 11:25:26AM , :✓i , jai Common Well Name: E -20 AFE No Event Type: DRL- ONSHORE (DON) Start Date: 11/22/2012 End Date: 11/28/2012 X3- 01129- C:E2OBCTD (2,095,370.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: NORDIC 1 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: NORDIC CALISTA UWI: / Lat: 070 °20'19.961 "1 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:15 - 05:30 3.25 DRILL P PROD1 FREE SPIN 3040 PSI AT 2.6 BPM. DRILL AHEAD IN BUILD SECTION FROM 9550'. - 2.6 BPM, 3000 -3245 PSI, .6 -2.0K WOB, 10.1 ECD, MW IN AND OUT 8.65 PPG - DIFFICULTY GETTING PROPER KICK OFF, WORKING ON INCLINATION 05:30 - 07:00 1.50 DRILL P PROD1 GEO REQUESTS TO RE -LOG TIE -IN FOR ZONAL MARKER. PULL UP HOLE TO 9470' AND LOG TIE -IN WITH +2' CORRECTION. 07:00 - 11:15 4.25 DRILL P PROD1 OBTAIN SLOW PUMP RATES. DRILL AHEAD FROM 9650'. FREE SPIN 2950 PSI AT 2.6 BPM. MW IN AND OUT 8.65 PPG. 11:15 - 12:00 0.75 DRILL P PROD1 WIPER TRIP TO WINDOW. NO ISSUES TO WINDOW OR BACK TO BOTTOM. 12:00 - 18:00 6.00 DRILL P PROD1 DRILL AHEAD FROM 9800'. FREE SPIN 2975 PSI AT 2.6 BPM. MW IN AND OUT 8.68 PPG. COMPLETE DRILLING TO END OF BUILD SECTION AT 10,000'. FLOW CHECK WELL, NO FLOW. 18:00 - 21:15 3.25 DRILL P PROD1 POH TO WINDOW. FLOW CHECK AT WINDOW. NO FLOW. CONTINUE POH. LOG CCL FROM 9000' TO 9400' DUE TO CHANGE IN LINER PROGRAM. CONTINUE TO POH TO SURFACE AND FLOW CHECK AT SURFACE WHILE CONDUCTING PJSM ON LAYING DOWN BHA. 21:15 - 23:15 2.00 DRILL P PROD1 LD BHA WITH NO ISSUES. BIT GRADE 2 -2 -CT. CHANGE OUT GAMMA SUB, MOTOR AND BIT. MU TO COIL CONNECTOR. STAB ON, PRESSURE TEST QUICK TEST SUB. 23:15 - 00:00 0.75 DRILL P- PROD1 RIH WITH 4.25" BI- CENTER BIT ON 3 -1/8" ULTRA LOW SPEED MOTOR WITH 1.52° BEND (AKO). 11/27/2012 00:00 - 01:45 1.75 DRILL P PROD1 RIH WITH 4.25" LATERAL ASSEMBLY. LOG TIE -IN WITH -7.5' CORRECTION. OBTAIN SLOW PUMP RATES. RIH TO BOTTOM. 01:45 - 06:00 4.25 DRILL P PROD1 DRILL AHEAD IN LATERAL SECTION. FREE SPIN 3080 PSI AT 2.6 BPM. - 2.6 BPM, 3260 -3400 PSI, ECD 10.3 PPG, WOB .94 -2.5K, MW IN AND OUT 8.75 PPG - INCREASE IN DIFFERENTIAL PRESSURE, PU TO CHECK PARAMETERS. PUW INCREASE FROM 34K TO 37K. CONDUCT BHA WIPER TRIP. RUN BACK DOWN WITH NO ISSUES. DRILL AHEAD ANOTHER 10' AND PU FOR DIRECTIONAL CORRECTION, PU CLEAN. - BEGINNING TO SEE SOME STACK DOWN AT 10,156', PRESSURES OKAY - PREDOMINANT CUTTINGS COMING BACK FROM 10,000' TO 10,100' 70% CHERT. PREDOMINANTLY SAND FROM 10,150' SAMPLE. GEO INTERPRETATION SHOWS MAJOR FAULT CROSSED AT 9880'. - BHA WIPER AT 10,200' DRILL TO 10250' 06:00 - 07:15 1.25 DRILL P PROD1 WIPER TRIP FROM 10250' TO 9545' WITH NO PROBLEMS / OBTAIN SPR 07:15 - 11:45 4.50 DRILL P PROD1 DRILL AHEAD FROM 10250' TO 10425' 2.6 BPM = 3140 FS 11:45 - 13:00 1.25 DRILL P PROD1 SHORT -TRIP FROM BOTTOM TO WINDOW. Printed 12/10/2012 11:25:26AM Tim= 4 -1/16" CM/ III WELLHEAD FMC E -2 0 B C E TBGS:. WELL ANGLE < 70" @ 10601 ""'41/2" ACTUATOR " ....... OT1 PJC DRAFT rink. KB. ELEV = 60.54' H a t s 2018' 9 -518" HES CEMENTER ". I20' CONDUCTOR H ^•110 B F. u 32 Q1' r KOP 2900" 9-5/8" CSG, 405, -I 2061' �� 2040' 9 -5/8" BKR E( ,10 = 8. 867" Max Angle = 87" 6 10190` L -80 FfYD 563, Datum MD= 9821' D = 12.347" 2128' I D = Datum TVD -0' SS 9-5/8" BKR CSG PATCH, U = 9.96 " --I 2061' - 2065' GAS LET MANDRELS 1 13-3/8" CSG, 72#, L -80, ID = 12.347" H 2699; ® ST MD ND DEV TYFE VLV LATCH. PORT DATE 2 3644 3615 24 KBG2 DMY BK 0 11/22/12 I? SCOOP GUUE (11/07/12) - 3462 + � 1 16542 6007 33 KBG2 DMY BK 0 11/22/12 I ESTYUATED TOP OF CEMENT I 3490' y ® 8607' -17" FES FLOAT COLLAR w /3/8" ORFACE HOLE Minimum 10 = 23.77" @ 10749' 4i s! 3-3I1 -7!$" X� 8624 , Hr BKR LOC & SEAL ASSY (3 SETS ), ID= 6.17" ►� 8625' I-{ 9-5/8" X 7" BKR ZX P LNR TOP PKR N w / TRACK SLV, b - 6.30" 7" TIEBACK/SCAB LNR, - R, 26 #, L -80 8625' 1 BTC-M, .0383 bpf,13 = 6.276" 8642' I- 9 -5/8" X 7" BKR HMC LNR HGNR, ID 6.310' 1 9-5/8" CSG, 47#, L -80, ID = 8.68r I-1 -8767 ..------"-` MLLOUT WINDOW (E-20A) 8767' - 8783' 9025' H4 -1/2" HES X NP D= 3.813" I bpi b - 4 9054` .... HIT' X 4 -1/2" HES TNT PKR, D = 3.856" I ®- 9088' I4- 1 /2" HES X NIP, D= 3.813' I 9151' I -J3.70" BTT GEN 2 D) =PLOY SLV, D= 3.00" 4 -1/2" TBG, 12.6#,13CR -85 VAM TOP, 9159' 1111 9173' H3-1/2" HES X NP, 13= 2.813" I .0158 bpf, ID = 3.958" I M 9174' Hr x 4 -1/2" UNIQUE OVERSHOT, ID = 4.654" I 4 -1/2" TUBING STUB (08/17112) -- 9155' 1 9195' I -14 -1/2" HES X NP, 13 = 3.813" 9216' I-{ 7" X 4 -1 /2" BKR S-3 PKR, E)= 3.875" I I I CT L.NR b,1 b 9240' - 14 -1/2" HES X NP, ID = 3.813" I ' 4 -1/2" TBG, 12.65,13CR -80 VAM TOP -I 9273' ® 9261' ' R4 -1/2" HES XN NP, NWT) TO 3.80" (11/24/12) I fl152bpf. U =3.958" 9266' I ?" X 5" BKRZXPLTPwIIEBACK SLV, 13=4.44" 17" LNR, 265 L -80 BTC-M, .0383 bpf, 13 = 6276" H 9425' L. 4 -1 4 -1/2" WLEG,1D = 3.958" 9279' --37" X 5" BKR FLEX -LOCK HGR, n = 4.44" I Iet Na I CT LNR 1 3-1/2' LNR, 9.35, L -80 STL, .0087 bpf, D= 2.992" 9520` 9289' Hs- X 4-1/2" XO, U= 3.958" I4 -1/2" WHPSTOCK (11/24/12) 9530' I 9520' H3 -1/2" X 3 -3/16" XO, 13= 2.786" I 14-1/2" LNR, 12.65, L -80 BT -M, .0152 bpf, D = 3.958" I - -9530 4 PRORATION SUMMARY MLLOUT Wf'IDOW (E-20B) 9530' - 9538' REF LOG: ANGLE AT TOP PE: 68" @ 10620' Note_ Refer to Roduction DB for historical perf data SIZE SPF INTERVAL 'Opn/Sqz SHOT SQZ 2" 6 10620 - 10730 0 11/30/12 I 10749' H3-3/16- X 2-7/8" XO, 13= 2.377" I I I 3 3 - 1/4' LNR, 6.60#, L -80 TC11, .0079 bpf, D = 2.850'l 10749' I PBTD I-I 10762' I2 - 7/8" LNR, 6.5#, L - 80 STL, .0058 bpf, ID = 2.441' ---1 10782' .--- --_ DATE REV BY CO E T'S ' DATE REV BY ' COMMENTS PRUDHOE BAY IfT 12/17/81 N22E IMTIAL COMPLETION WELL E-20B 10/17/04 , N2ES SIDETRACK {E2)/) PE RIM - 11/22/12 0 RWO V API No: 50 -029- 20576 -02 12/02112 NORE1C 1 CTD SIDETRACK (E -20B) SEC 6, T11 N, R14E, 1743" FR .& 883' FE.. 12/02/12 RIC DRLG DRAFT CORRECTIONS BP Exploration (Alaska) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed: ❑ Abandon ® Repair Well ❑ Plug Perforations ❑ Perforate ❑ Re -Enter Suspended Well ® Alter Casing ® Pull Tubing ❑ Stimulate - Frac ❑ Waiver . Other ❑ Change Approved Program ❑ Operation Shutdown ❑ Stimulate - Other ❑ Time Extension _. P t.� .... 'r _Cr-TD yr" 2. Operator Name: 4. Well Class Before Work: 5. Permit To Drill Number: BP Exploration (Alaska) Inc. ❑ Exploratory ❑ Stratigraphic 204 - 189 3. Address: ® Development ❑ Service 6. API Numbe P.O. Box 196612, Anchorage, Alaska 99519 - 6612 50.029 20576 - 01 - 00 7. Property Designation (Lease Number): 8. Well Name and Number: ADL 028304 PBU E -20A 9, Logs (list logs and submit electronic and printed data per 20AAC25.071): 10, Field / Pool(s): USIT Prudhoe Bay Field / Prudhoe Bay Oil Pool 11. Present well condition summary: Total depth: measured 10050' feet Plugs:(measured) 9660' feet true vertical 9109' feet Junk: (measured) None feet Effective depth: measured 9962' feet Packer: (measured) 9054' / 9216' feet true vertical 9021' feet Packer: (true vertical) 8158' / 8303' feet Casing Length Size MD TVD Burst Collapse Structural Conductor 110' 20" x 30" 110' 110' Surface 2669' 13 -3/8" 30' - 2699' 30' - 2699' 4930 2670 Intermediate 8738' 9 -5/8" 29' - 8767' 29' - 7907' 578'01W70 3090 / 4760 Production Liner 5963' 7" 3462' - 9425' 3446' - 8493' 7240 5410 Liner 784' 4-1/2" 9266' - 10050' 8349' - 9109' 8430 7500 Perforation Depth: Measured Depth: 9854' - 9935' feet SCANNED MAR 1 1. 2013 True Vertical Depth: 8913' - 8994' feet Tubing (size, grade, measured and true vertical depth): 4 - 1/2 ", 12.6# 13Cr85 / 13Cr80 9273' 8355' Packers and SSSV (type, measured and true vertical depth): 7'" x 4 - 1/2" HES TNT Packer; / 9054' / 92:18;.---8408 8303' 7" x 4 Baker S - 3 Packer 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment description including volumes used and final pressure: Cut and pull 7" liner at 3462', cut and pull 9-5/8" casing at 2062', run 9 -5/8 ", 40#, L -80 casing and patch to 2065'. Cement 9 -5/8" with 121 Bbls (581 sx) Class 'G' cement. 13 Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure ' Tubing Pressure Prior to well operation: 232 8515 9 440 240 Subsequent to operation: 14. Attachments: ❑Copies of Logs and Surveys run 15. Well Class after work: ❑ Exploratory ❑ Stratigraphic ® Development ❑ Service ® Daily Report of Well Operations 16. Well Status after work: ® Oil ❑ Gas ❑ WDSPL ® Well Schematic Diagram ❑ GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUG 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exemt: Contact: Sean McLaughlin, 564 -4367, Sean @bp com 312 -301 Email: Joseph.Lastufka @bp.com Printed me: Joe ti Title: Drilling Technologist Signature: Phone: 564 - 4091 Date: 11/5 ii 1.- Form 10 -404 Revised 10/2012 S mit Origins Only STATE OF ALASKA RECEIVED O SKA OIL AND GAS CONSERVATION C•ISSION REPORT OF SUNDRY WELL OPERATIONS DEC 0 5 2012 1 1. Operations Performed: �OCCC ® Re ❑ Abandon Well ❑ Perforations ❑ Perforate ❑ Re -Enter Suspended Well Repair Plug ® Alter Casing ® Pull Tubing ❑ Stimulate - Frac ❑ Waiver ❑ Other ❑ Change Approved Program ❑ Operation Shutdown ❑ Stimulate - Other ❑ Time Extension 2. Operator Name: 4. Well Class Before Work: 5. Permit To Drill Number: BP Exploration (Alaska) Inc. ❑ Exploratory ❑ Stratigraphic r 204 - 189 3. Address: ® Development ❑ Service 6. API Numbe P.O. Box 196612, Anchorage, Alaska 99519 - 6612 50 7. Property Designation (Lease Number): V 8. Well Name and Number: ADL 028304 PBU E - 20A 9. Logs (list logs and submit electronic and printed data per 20AAC25.071): 10. Field / Pool(s): USIT Prudhoe Bay Field / Prudhoe Bay Oil Pool 11. Present well condition summary: Total depth: measured 10050' feet Plugs:(measured) 9660' feet true vertical 9109' feet Junk: (measured) None feet Effective depth: measured 9962' feet Packer: (measured) 9054' / 9216' feet true vertical 9021' feet Packer: (true vertical) 8158' / 8303' feet Casing Length Size MD TVD Burst Collapse Structural Conductor 110' 20" x 30" 110' 110' Surface 2669' 13 -3/8" 30' - 2699' 30' - 2699' 4930 2670 Intermediate 8738' 9 -5/8" 29' - 8767' 29' - 7907' 5750 / 6870 3090 / 4760 Production Liner 5963' 7" 3462' - 9425' 3446' - 8493' 7240 5410 Liner 784' 4 -1/2" 9266' - 10050' 8349' - 9109' 8430 7500 I Perforation Depth: Measured Depth: 9854' - 9935' p p feet True Vertical Depth: 8913' - 8994' feet Tubing (size, grade, measured and true vertical depth): 4 - 1/2 ", 12.6# 13Cr85 / 13Cr80 9273' 8355' Packers and SSSV (type, measured and true vertical depth): 7" x 4 HES TNT Packer; / 9054' / 9216' 8158' / 8303' 7" x 4 - 1/2" Baker S - 3 Packer 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment description including volumes used and final pressure: Cut and pull 7" liner at 3462', cut and pull 9 -5/8" casing at 2062', run 9 -5/8 ", 40#, L -80 casing and patch to 2065'. Cement 9 -5/8" with 121 Bbls (581 sx) Class 'G' cement. 13 Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: 232 8515 9 440 240 Subsequent to operation: 14. Attachments ❑Copies of Logs and Surveys run 15. Well Class after work: ❑ Exploratory ❑ Stratigraphic ® Development ❑ Service ® Daily Report of Well Operations ® Well Schematic Diagram 16. Well Status after work: -, ® Oil ❑ Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUG 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: Contact: Sean McLaughlin, 564 -4387; Sean McLaughlin @b com 312 -301 Email: Joseph.Lastufka @bp.com - Printed Name: Joe Lastufka Title: Drilling Technologist Signature: . 564 -4091 Date: Form 10-404 Revised 10/2012 ' M.d) ULL O 6 ZO1Z Submit Original Only • • E -20A, Well History (Pre Rig Workover) Date Summary 08/12/12 DRIFT TO 4 1/2" XXN PLUG W/ 3.80 G.RING @ (9251' SLM/9261' MD). PULL 4 1/2" XXN PLUG FROM 9261' MD. DRIFT W/ 3.70" CENT & 2.5" S.BAILER TO TD @ 9920' SLM /9930' MD. * *76' OPEN PERFS /5' FILL. 08/13/12 T /I /0 /00= 150/370/150/0 +. Temp= SI. T & IA FL (Eline requested). T FL @ 240' (6 bbls). IA & OA FL @ surface. SV,WV,SSV= closed. MV =open. IA,OA,OO =open to gauge. NOVP. 2030. 08/17/12 INITIAL T /I /0 = 250/420/150 PSI. RIGGED UP ELINE EQUIPMENT AND LRS. RIH W/ HEAD /ERS/WEIGHT BAR /UPCT /FIRING HEAD /BAKER 10 /PLUG OAL = 20.8' OAW = 200LBS FN = 1.38" MAX OD = 3.56 ". WEATHERFORD 4.5" DB BRIDGE PLUG, OAL = 13.25 ", OD = 3.562 ME SET DEPTH = 9700'. CCL TO ME = 7.04' CCL STOP DEPTH = 9692.96' TOP OF PLUG = 9699.5'. LRS PERFORMED MIT AFTER PLUG SET. RIH. HEAD /ERS /CCL/WEIGHT BAR/ SHOCK MANDRELS /JET CUTTER. LENGTH: 19'; WEIGHT: 200 LBS. MAX OD: 3.65" FN: 1.38 ". TUBING CUT AT 9155 FT. 08/17/12 T /I /O /OOA= 180/440 - /160/0. Temp- S /I. (Pre -RWO). MIT T to 3500 psi. ** *PASSE * *. Tbg lost 188 psi in first 15 minutes & 59 psi in second 15 minutes. Total loss= 247 psi. Bleed tbg pressure down to 430 psi. FWHP= 430/500/160/0. IA, OA, & OOA OTG. 08/18/12 FINISH POOH AFTER JET CUT & RIG DOWN. VALVES OTG. WELL LEFT SI ON DEPARTURE. FINAL T /I /0 = 350/300/150. 09/09/12 T /I /0 = 145/347/53 (Pre- RWO) CMITTxIA to 3500 psi ** *FAILED * ** Circ out WH down Tbg up IA. Speared in Tbg with 5 bbls meth followed by 470 bbls 1% Kcl for sweep (1.5x) followed by 90 bbls of diesel for u -tube FP. Pumped 6.9 bbls of diesel down Tbg to reach test pressure. 5 min into test when it rapidly lost pressure, fell to 40/ -8/0. Tags hung DSO notifed at time of departure. E -20 = SV, WV, SSV = • closed IA, OA, OOA = open E -36 = SV, WV, SSV = closed IA, OA = open ROS #3 and all hardline connected is FP with diesel. FWHP = -8/ -10/0. 09/13/12 /1 /0 /00 = VAVNACNAC /0 +. Temp = SI. T & IA FL (pre Slick line). No AL. TBG FL @ —2700' (41 bbls). IA FL near surface. SV, WV, SSV = Closed. MV = Open. IA & OA = OTG. NOVP. 23:20. 09/15/12 T /I /0 /00= SSV /30/0/0 Temp =SI Repair Leaking Wellhead. Found 1 LDS assembly flagged and weeping fluid on TBG head. Stung into TBG hanger test void (100 psi.). Bled void to 0 psi. Adjusted flagged LDS gland nut. Pressured test void to 5000 psi. Monitored 30 min. Leak eliminated. Bled void to 0 psi. Cleaned wellhead. 09/15/12 TAG TOP OF CIBP W/ 2.50" LIB @ 9673' SLM (NO IMPRESSION OF CIBP - RECOVERED BRASS /METAL DEBRIS IN LIB). 09/16/12 Assist Slickline, LDL, CMIT -TxIA * *PASSED ** to 1000 psi ( Pre RWO) Pumped 63 bbls diesel down IA while Slickline made logging passes. Pumped 17.5 bbls 50* diesel to reach test pressure for CMIT -TxIA. 1st 15 minutes T /IA lost 41/40 psi. 2nd 15 minutes T /IA lost 20/19 psi. Total T /IA loss in 30 minutes= 61/59 psi. Bled TxIAP (— 11 bbls ). FWHP's =0 +/0+ /vac /0+ Slickline in control of well upon departure. IA, OA & OOA= OTG. 09/16/12 LOGGED LDL WITH STP & DIGITAL SLICKLINE. LDL SHOWED LEAKING CIBP @ 9700' MD. TAG TOP OF CIBP W/ 3.69" WRP DRIFT @ 9669' SLM. SET WFD 4 1/2" WFD CIBP @ 9660' MD. LRS PERFORMED CMIT -TxIA (07 1000 PSI (PASS). Page 1 of 2 • • E -20A, Well History (Pre Rig Workover) Date Summary 09/18/12 T /I /0= 20/18/0 Temp =SI Circ -out, Freeze Protect Flowline E -36 (Pre- RWO) Pumped 5 bbls meth spear followed by 462 bbls 1 %KCL down tubing taking returns through IA to flowline of well E -36. Pumped 90 bbls diesel down tubing and U -tube to IA for freeze protect. Freeze Protected flowline on well E -36 according to west side procedure with 10 bbls meth and 32 bbls crude. Pad op notified of well condition upon departure. FWHP's= 0/0/0. 09/21/12 T /I /O /00= 0/0/0/0 Temp = SI LDS drillout on CSG hanger PPPOT -IC (PASS) Pre RWO. Verified WHP's at 0 psi. DHD held open bleeds on IA and OA . Stung into test void (0 psi.). Removed 1 stuck LDS. Repaired threads in wellhead and installed new LDS assembly. 2 LDS are stuck in the out position and flagged. All the rest moved freely. PPPOT -IC: Pressured void to 3500 psi. for 30 min test. lost 200 psi. in 15 min. Lost 80 psi in second 15 min.(PASS). Bled void to 0 psi. 10/01/12 T /I /O= Vac /0/0 Conducted PJSM. Started barrier list = Swab & SSV. PT'd thru tree cap needle valve against Swab, 3500 psi. /5 min. pass. Removed tree cap, attached lubricator, PT'd 250 /Iow..3500 /high 5 min. each pass. SET 4" CIW "H" BPV #253 THRU TREE USING 1 -1' EXT. tagged @ 112" Pre Doyon 14. No problems. Page 2 of 2 • • Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.0179 Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 10/29/2012 04:00 - 00:00 20.00 MOB P PRE MOBILIZE RIG FROM MPU S -PAD TO PBU E -PAD -* *RIG LEASED FROM MPU S-41 AT 04:00 ** 10/30/2012 00:00 - 18:00 18.00 MOB P PRE MOBILIZE RIG TO PBU E PAD. 18:00 - 20:00 2.00 MOB P PRE STAGED RIG AT ENTRANCE TO E PAD. -REMOVED FRONT AND REAR BOOSTERS. 20:00 - 00:00 4.00 MOB P PRE POSITIONED RIG ON RIG MATS, SET BOP STACK BEHIND RIG ON CRADLE. - BACKED RIG OVER BOP STACK, REMOVED STACK FROM CRADLE. -SET BOP STACK ON PEDESTAL. 10/31/2012 00:00 - 06:30 6.50 MOB P PRE MOVE RIG AROUND E -PAD. -WELLHEAD PRESSURES: IA= 0 PSI, OA= 0 PSI, OOA= 0 PSI. -ENSURE WELLHEAD VALVES CLOSED. -SPOT RIG OVER WELL CENTER ON WELL E -20. 06:30 - 08:00 1.50 MOB P PRE PJSM AND SKID RIG FLOOR TO DRILLING POSITION. 08:00 - 12:00 4.00 MOB P PRE PJSM AND SLIDE OUT CONVEYOR #2. - HOOK UP LINES ON RIG FLOOR. -SET HERCULITE AND BERM FOR ROCK WASHER. SPOT SAME. 12:00 - 15:00 3.00 MOB P PRE CONTINUE SPOT ROCK WASHER, FUEL TANK, LUNCH TRAILER - CONTINUE RIG UP ON CONVEYOR #2 AND RIG FLOOR -RIG UP STAND PIPE MANIFOLD. *24 HOUR NOTICE AT 15:00 10 -31 -12 TO AOGCC VIA EMAIL OF UPCOMING BOPE TEST. 15:00 - 21:00 6.00 WHSUR P DECOMP *RIG ACCEPTED AT 15:00 10-31 -2012. -LOAD PITS WITH 8.5 PPG SEAWATER. -RIG UP LINES IN CELLAR. -RIG UP DOUBLE GATE ON IA. -RIG EVACUATION DRILL. CRT = 3:05 MINUTES. CONDUCT AAR. -TEST RIG EMERGENCY SHUT DOWN SYSTEM - OK. 21:00 - 00:00 3.00 WHSUR P DECOMP RIG UP HARD LINE AND CHOKE MANIFOLD FROM TREE TO TIGER TANK WITH DSM CREW. -SIM OPS: -RE- TORQUE STUDS AND NUTS ON BOP STACK. -BEGIN LOADING 4" DRILL PIPE IN SHED. -RIG UP INTERCOM LINE TO WSL OFFICE TO RIG. - ESTABLISH PHONE AND INTERNET CONNECTIONS WITH GCI. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/1/2012 00:00 - 04:00 4.00 WHSUR P DECOMP RIG UP HARD LINE TO TIGER TANK, CONT. -DSM TEST HARDLINE TO 500/4250 PSI AND BLOWDOWN. - INSTALL ISOLATION VALVE AT TIGER TANK. -RIG UP DOUBLE GATE VALVE ON WORKING SIDE OF OA. -RIG UP BLIND FLANGE ON NON - WORKING SIDE OF IA. 04:00 - 06:30 2.50 WHSUR P DECOMP *RIG EVAC DRILL. CRT =4:00. AAR. -TEST MUDLINE TO TREE. 250/3500 PSI FOR FIVE MINUTES -OK. • -TEST HARDLINE FROM TREE: 3500 PSI AND LK TITS - OK. -RIG EA UP LUBRICATOR AND TEST. -RIG UP STEAM LINES TO TIGER TANK. 06:30 - 07:00 0.50 WHSUR P DECOMP BLEED OFF PRESSURE AND BLOW DOWN LINES. 07:00 - 07:30 0.50 WHSUR P DECOMP MOBILIZE LUBRICATOR TO RIG FLOOR. 07:30 - 09:00 1.50 WHSUR P DECOMP PJSM ON TESTING LUBRICATOR. - RIG UP LUBRICATOR. -TEST 250 PSI LOW/ 3500 PSI HIGH FOR FIVE CHARTED MINUTES. 09:00 - 10:00 1.00 WHSUR P DECOMP PULL BACK PRESSURE VALVE. RIG DOWN LUBRICATOR. 10:00 12:00 2.00 WHSUR P DECOMP PJSM ON VOIDING DIESEL FREEZE PROTECTION. REVERSE CIRCULATE 40 BBLS 8.5 PPG SEAWATER AT 5 BPM WITH 990 PSI, 50 PSI AT TIGER TANK. -PUMP 70 BBLS DEEP CLEAN SWEEP DOWN TUBING AT 4 BPM WITH 380 PSI, 50 PSI AT TIGER TANK. - CHASE WITH 300 BBLS 8.5 PPG 140 DEGREE SEAWATER AT 7.4 BPM WITH 1760 PSI, 145 PSI AT THE TIGER TANK. 12:00 - 14:30 2.50 WHSUR P DECOMP VOIDING DIESEL, CONT. - CONTINUE TO PUMP 300 BBLS 8.5 PPG 140 DEGREE SEA WATER DOWN TUBING TAKE RETURNS OUT OF ANNULUS TO TIGER TANK. - 7.4 BPM AT 1840 PSI, 95 PSI AT TIGER TANK. -WAIT 10 MINUTES AFTER CIRCULATION AND CHECK PRESSURE ON TUBING AND ANNULUS. BOTH AT 0 PSI. 14:30 - 16:30 2.00 WHSUR P DECOMP PJSM ON INSTALLING TWC OPERATION. RIG UP LUBRICATOR AND TEST 250 PSI LOW/ 3500 PSI HIGH FOR FIVE CHARTED MINUTES - INSTALL TWO WAY CHECK. *AOGCC, LOUIS GRIMALDI, WAIVED WITNESS OF BOPE TESTING AT 15:00 ON 11 -1 -2012. 16:30 - 19:00 2.50 WHSUR P DECOMP PRESSURE TEST TWC. -TEST TWC FROM BELOW 500 PSI FOR TEN CHARTED MINUTES. TEST FROM ABOVE 250 PSI LOW/ 3500 PSI HIGH FOR FIVE CHARTED MINUTES. Printed 12/3/2012 11:00:11AM i s p1/4E No Common Well Name: E -20 Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017 W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 22:30 3.50 WHSUR P DECOMP LAY DOWN LUBRICATOR. RIG DOWN HOSES FOR VOIDING DIESEL. NIPPLE DOWN TREE AND MOBILIZE BEHIND RIG. - INSPECT TUBING HANGER THREADS -OK. 8 ROUNDS TO TITE. 22:30 00:00 1.50 WHSUR P DECOMP PREP TO CHANGE OUT RAMS. LOOSEN STUDS ON RAMS DOORS. 11/2/2012 00:00 - 06:00 6.00 BOPSUR P DECOMP SET IN BOP STACKAND NIPPLE UP. - HOOK UP HYDRAULIC HOSES AND KILL LINE TO BODE STACK. -LAY DOWN ELEVATOR LINKS AND INSPECT XT -39 SAVER SUB, LOOKED GOOD. -RIG UP RISER AND FLOW LINE. 06:00 - 12:00 6.00 BOPSUR P DECOMP CH OUT UPR RAMS FROM 3.5 X 6" VBR'S TOE 4.5x 7B PE VBR. CHANGE ANGE OUT BOTTOM RAMS FROM 5" -- TO 3.5 x 6" ' CHANGE OUT BLIND SHAA INSPECT RUBBERS VBR AND MS. SEALS ON ALL RAM R R DOORS. ID - N OUT LLER LOWER RAM *M SEAL CHA DOOR. OBILIZE GE BOP TEST EQUI PMENT. 12:00 - 16:00 4.00 BOPSUR P DECOMP WORK RAM DOO, -HOOK UP KILL LINE PRA C CONT. HANE OUT TURN BUCKLES S TO CENTER UP STACK - INSTALL W, A HO LINES. *SIM OP: LOAD FLO 294 JTS BLEED 4 OFF " XT39 DD P IN PIPE LE FILL SHED. *SPILL DRILL 15 SECONDS) 16:00 - 19:00 3.00 BOPSUR P DECOMP_ PJSM RIG UP TO TEST HELD BOPE SE WITH IME 4" (1 TEST JOINT. -RP OQIPM - PICK IG U UP 4" P TEST JOINT . MPT B SHELL TEST TEST U WITH ENT. ANNULAR PREVENTER TO E TWC HO W/O SUCCESS. -NO FLUID N OR BUBBLES OBSERVED ABOVE ANNULAR PREVENTER. *WELL KILL DRILL. 19:00 - 00:00 5.00 BOPSUR N RREP DECOMP TROUBLESHOOT OS SHELL ROU TEST LEHOO WITH B LOWER 3 -1 /2X6" VBR W/ SUCCESS, TWC IS HOLDING. . *NOTIFY SUPERINTENDENT OF UNSUCCESSFUL ANNULAR SHELL TEST. - LAYDOWN 4" TEST JOINT. - PICK UP 4 -1/2" TEST JOINT. -TEST P2X" UE W/O SUCCESSUP ER . (ATTEMPTING TO 4- 1/ VE7RIFY PP RING R VBR GASKETS AROR - FLUID OBERVED UND MUD CROSS FLOW G DOWN GOOD). FLOW LINE. -CYCLE RAMS AND RETEST W/O SUCESS. - LAYDOWN 4 -1/2" TEST JOINT. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. / Lat: 0°20'19.961 "1 Long: 0148 UWI: °40'06.01 7"W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/3/2012 00:00 02:00 2.00 BOPSUR N RREP DECOMP TROUBLESHOOT ROPE, CONT. CLOSE BLIND /SHEAR RAMS AND VAC STACK. - PRSURE UD M SUCCESSFU L SHELL M TESPUT. P. BLIND SHEARS B AND TWC ES HOLDING. 02:00 - 04:00 2.00 BOPSUR P DECOMP - BOPE TESTING. TEST ANNULAR PREVENTER. -PICK UP 4" TEST JOINT. TEST 250/3500 PSI FOR 5 CHARTED MINUTES. -LAY DOWN 4" TEST JOINT. *SPILL DRILL, RESPONSE TIME 2 MINUTES 3 SECONDS. 04:00 - 06:30 2.50 BOPSUR N RREP DECOMP PJSM ON CHANGE OUT OF 4 -1/2 x 7" UPPER VBR. - OPEN RAM DOORS ON UPPER VBRS. INSPECT DOOR SEALS. - CHANGE OUT 4 -1/2" x 7" INSERTS AND TOP SEALS. DOYON RIG MECHANIC ON LOCATION. -CLOSE RAM DOORS AND SECURE. 06:30 - 08:00 1.50 BOPSUR P DECOMP BEST TEST OPS T 4 -1/2" ING. x 7" UPPER VBR WITH 4 -1/2" TEST JOINTS. -TEST 250 PSI LOW AND 3500 PSI HIGH FOR 5 CHARTED MINUTES. 08:00 - 20:30 12.50 BOPSUR P DECOMP BOPE TESTING. *TEST PRESSURES 250 PSI LOW AND 3500 PSI HIGH FOR 5 CHARTED MINUTES. *ALL TESTS IN ACCORDANCE WITH DWOP, DOYON AND AOGCC SPECS. -TEST MANUAL IBOP ON TOP DRIVE. -TEST UPPER 4 -1/2 X 7" VBR WITH 7" TEST • JOINT. TEST LOWER 3- 1/2X6" VBR WITH 4" AND 4 -1/2" TEST JOINTS. -TEST (2) 4" FOSV, (1) 4" DART VALVE. -TEST CHOKE MANIFOLD VALVES 1, 2,3,4,5,6,7,8,9,10,11,12,13,14. TEST BLIND /SHEAR RAMS, KILL LINE, MANUAL CHOKE AND KILL LINES VALVES ON MUD CROSS. -TEST HCR VALVES ON THE MUD CROSS TO 250 PSI LOW AND 3500 PSI HIGH. *HCR ON S FAILED. -DRAW DOWN VALVE AT ON 1500 KILL PSI ON IDE CHOKE VALVES A -B. - ACCUMULATOR DRAWDOWNI TEST. 20:30 22:00 1.50 BOPSUR N RREP DECOMP PJSM ON REBUILDING HCR KILL VALVE. REBUILD KILL LINE HCR VALVE. FUNCTION AND GREASE. *FIRE DRILL, RESPONSE TIME 1:20 MINTUES. 22:00 00:00 2.00 BOPSUR P DECOMP TEST HCR KILL LINE VALVE -TEST 250 PSI LOW AND 3500 PSI HIGH FOR 5 CHARTED MINUTES. -RIG DOWN TEST EQUIPMENT AND BLOW DOWN KILL LINE. Printed 12/3/2012 11:00:11AM Pe Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3-01 129 C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/4/2012 00:00 - 04:00 5.00 WHSUR P DECOMP PULL TWC OPERATION. -VAC BOP STACK. -RIG UP DUTCH RISER AND LUBRICATOR. - TEST 250/3500 PSI FOR 5 CHARTED MINUTES. -PULL TWC. -RIG DOWN LUBRICATOR AND DUTCH RISER. "SIM OP: MOBILIZE 4 -1/2" TUBING TOOLS TO RIG FLOOR. *NOTE: TIME CHANGE FROM DAYLIGHT TO STANDARD TIME. 04:00 - 05:30 1.50 WHSUR P DECOMP PJSM PULL TUBING HANGED OPERATION. -VAC STACK. -PICK UP LANDING JOINT W/ TCII CHANGE OVER. -SCREW INTO TUBING HANGER WITH 8 -1/2 ROUNDS. -VERIFY IA PRESSURE =0 PSI. -BACK OUT LOCK DOWN SCREWS W/ FMC. -UNSEAT TUBING HANGER W/ 96K SW. - PULL TUBING HANGER TO RIG FLOOR. 05:30 - 07:30 2.00 BOPSUR N RREP DECOMP RIG UP TO CIRCULATE BOTTOMS UP. -CLOSE ANNULAR PREVENTER. -ANNULAR PRESSURE REGULATOR WOULD NOT MAINTAIN PRESSURE. - TROUBLE SHOOT KOOMEY AND FIND REMOTE SWITCH OFF. SYNC CONTROL VALVES. *SIM OP: CIRCULATE OVER TOP OF HOLE MONITOR FLUIDS VOLUMES. 07:30 - 09:00 1.50 PULL P DECOMP SHUT IN ANNULAR AND CIRCULATE THROUGH FULL OPEN CHOKE. -240 BBL AT 4.0 BPM AND 260 PSI. - 10 MINUTE FLOW CHECK - STATIC. 09:00 09:30 0.50 PULL P ■- DECOMP LAY DOWN HAN K. -BLOW DOWN N CHOKE KE AND D KILL LINES. - MAKE UP TUBULAR HANDLING TOOLS. 09:30 - 12:00 2.50 PULL P DECOMP LAY DOWN 4 -1/2" 12.6# VAM TOP TUBING AND JEWELRY. - FROM 9155 TO 8102 FT. -PICK UP 151K , SLACK OFF 136K. *KICK DRILL, RESPONSE TIME 2 MINUTES AND 54 SECONDS. 12:00 - 13:00 1.00 PULL P DECOMP RIG SERVICE AND INSPECT TOP DRIVE AND BLOCKS. *KICK DRILL RESPONSE TIME 2 MINUTES AND 30 SECONDS. 13:00 - 20:00 7.00 PULL P DECOMP PJSM ON LAYING DOWN TUBING OPERATION. -LAY DOWN 4 -1/2" 12.6# VAM TOP TUBING AND JEWELRY, CONT. -FROM 8102 FT TO CUT JOINT. *214 JOINTS OF TUBING, 4 GLMS, 1 X- NIPPLE, AND 4 PUPS. *CUT JOINT =11.18 FT W/ CLEAN FLARE = 4.875 INCHES. Printed 12/3/2012 11:00:11AM e r 7 7 e Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070°20'19.961"1 Long: 0148 °40'06.017"W Active Datum: ORIG KELLY BUSHING ©60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:00 - 23:00 3.00 PULL P DECOMP CLEAN AND CLEAR RIG FLOOR OF CASING TOOLS. - CHANGE OUT BALES FROM LONG TO SHORT. - INSTALL 4" ELEVATORS. - MOBILIZE BAKER TOOLS TO RIG FLOOR. 23:00 - 23:30 0.50 WHSUR P DECOMP - INSTALL WEAR BUSHING. -PICK UP TEST JOINT WITH RUNNING TOOL. -INSTALL WEAR BUSHING. -RUN IN (4) LOCK DOWN SCREWS. - LAY DOWN RUNNING TOOL AND TEST JOINT. *WEAR BUSHING ID=7.00 INCH. 23:30 - 00:00 0.50 PULL P DECOMP PJSM ON NON SHEARABLES ACROSS STACK. - MAKE UP SAFETY JOINT EQUIPPED WITH FOSV AND X -OVER. 11/5/2012 00:00 - 00:30 0.50 PULL P DECOMP GREASE AND INSPECT DRAWWORKS, BRAKES AND TOP DRIVE. 00:30 - 03:30 3.00 CLEAN P DECOMP MAKE UP 4 -1/2" DRESS OFF SHOE BHA #1. -6 "X4-9/16" DRESS OFF SHOE. -INNER DRESS OFF MILL: 3- 13/16" X 4 -3/4 ". -SWALLOW: 14.73 FT. 03:30 - 12:00 8.50 CLEAN P DECOMP SINGLE IN HOLE WITH 4" DRILL PIPE AND BHA #1. -FROM 261 TO 7373 FT. *KICK TRIP DRILL, RESPONSE TIME 2 MINUTES 31 SECONDS. 12:00 - 12:30 0.50 CLEAN P DECOMP SERVICE AND INSPECT DRAWWORKS, IRON ROUGHNECK. 12:30 - 14:30 2.00 CLEAN ` P DECOMP SINGLE IN THE HOLE WITH 4" DRILL PIPE AND BHA #1, CONT. - FROM 7373 TO 9145 FT. -MAKE (6) PASSES WITH CASING SCRAPER: 9035 TO 9055 FT. 14:30 - 15:30 1.00 CLEAN P DECOMP 4/1/2" STUB DRESS OFF OPERATIONS. - OBTAIN MILLING PARAMETERS AT 9045 FT. -PICK UP =195K, SLACK OFF = 175K, ROTATE WEIGHT = 176K. TORQUE 3.5K AT 80 RPM. *TAG TOP OF STUB AT 9,161 FT. - PICK UP AND INTIATE ROTATION TO DRESS OFF 4 -1/2" 12.6# TUBING STUB. -DRESS OFF STUB WITH 5K WOB, 80 RPM W/ 4 -5 TORQUE. -WORK ON STUB WITH MULTIPLE TIMES WHILE ROTATING AND PUMPING. - STOP ROTATION AND SLIDE OVER STUB CONFIRMING STUB SLICK. 15:30 - 16:00 0.50 CLEAN P DECOMP CIRCULATE CLEAN. -250 BBL AT 9 BPM W/ 2000 PSI AND 40 RPM. - MONITOR WELL FOR TEN MINUTES AND STATIC. 16:00 - 20:00 4.00 CLEAN P DECOMP TRIP OUT OF HOLE WITH 4 -1/2" DRESS OFF SHOE. -RACK BACK ONE STAND OF DRILL PIPE. -BLOW DOWN THE TOP DRIVE. -TURN ON THE HOLE FILL AND MONITOR. -PULL OUT OF THE HOLE FROM 9091 TO 261 FT. Printed 12/3/2012 11:00:11AM .::::::''''::::, '1'''2:1::::::(:6:i:::::".:4'i."446i''''''' '/'' , Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129 C:E206RWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lt: 6 Long: 0148 °40'06.017'W Active Datum: ORIG KELLY BUSHING ©60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description Operations BHA. -10 MINUTE FLOW CHECK Ope - STA -RACK BACK (2) STANDS OF 4 -3/4" DRILL COLLARS. - LAYER MILL BRASS DOWN DRESS OFF SHOE BHA. *INN TATTLE TALES WORN AND SHOWED RING PATTERN. *CR —3 OF FR M RE AGNETS. OVE 21:30 - 22:30 1.00 CLEAN P DECOMP PJSM ON BEAVER SLIDE STEEL OPERATION. -DEMOBILIZE MILLING LBS TOOLS FROM OM RIG FLOOR. 22:30 - 00:00 1.50 EVAL P DECOMP PJSM RIG UP G S G - MOBILI OPERATIONS ZE LOGGING USIT TOOLS LOG AND ING EQUIPEMENT TO RIG FOOR. T E -LINE UN {T AND UP W 01:30 1.50 EVAL P DECOMP PJSM ON RIG UP FOR LOGGING RIG IRE LINE. 11/6/2012 00:00 OPE SPO RATIONS. RIG LOGGING EQUIPMENT, CONT. 5.00 EVAL P DECOMP_.RUN SLB USIT LOG. DOWN UP LOG SLB TO 6000 FT. REPEAT 01:30 06:30 PASS 6000 TO 5500 FT. -UP LOG 6000 FT TO SURF ACE. - LOGGING TOOL RUN N CEMENT /CORROSION MODE. *LOGGING O 7 "X9 5/8 "ANNULUS TO LOCATE TOP OF FOR 7" CASING CEMENT CUT AN D PULL. *CONTINUOUS HOLE FILL MONITORING. * OLUH " ONI SIM DRAW OPS: WORKS. WORK *TEST 4.5 IF FOSV A D P LOW REPAR ING C 9 -5 CASING. *FIRE DRILL RESPONSE TIME 1 MINUTE AND 0.50 EVAL P 44 SECONDS 06:30 07:00 DECOMP RIG DOWN AND LAY DOWN SLB LOGGING TOOLS AND EQUIPMENT. 07:00 - 14:00 7.00 CASING N RREP DECOMP RIG REPAIR. LOW DRUM CLUTCH ON DRAW WORKS, CONT. REMOVE CLUTCH SPROCKET, ASSEMBLY. CHAIN AND BEARING *SIM OP: LOAD 9 -5/8" CASING INTO PIPE SHED. *FIRE DRILL AT 13:34, RESPONSE TIME 1 MINUTE AND 47 SECONDS. 14:00 22:30 8.50 CASING N RREP DECOMP PJSM INSTALL LOW DRUM CLUTCH. INSTALL SPROCKETS, BEARINGS SEALS, CHAIN, CLUTCH ASSEMBLY, GUARDS. *SIM OPS, MOBILIZE RIVER SAND TO RIG FLOOR. 22:30 23:00 0.50 CASING P DECOMP RIG SERVICE. 23:00 - 00:00 1.00 CASING P DECOMP PJSM IDGE ON PLUG. MAKING UP 7" HES RETRIEVABLE BR - VERIFY 0 PRESSURE. OPEN RAMS AND FLOW CHECK. -PICK UP RUNNING TOOL AND MAKE UP ON DOUBLE OF DRILL PIPE. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017"W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 11/7/2012 00:00 - 03:00 3.00 CASING P DECOMP TRIP IN HOLE WITH 7" HES RETRIEVABLE BRIDGE PLUG. -TO 3550 FT. 03:00 - 03:30 0.50 CASING P DECOMP SET 7" RBP AT 3550FT. -PICK UP 103K AND SO 105K. - ENSURE ON DEPTH AT 3550 FT AND SET RBP W/ 1 ROUND. -SO 90K AND PU 115K. - RELEASE FROM RBP W/ 1/4 ROUND. -PU AT 103K. -RACK BACK ONE STAND. 03:30 - 04:30 1.00 CASING P DECOMP PJSM ON PRESSURE TESTING RBP. -RIG UP LINES AND RECORDER. -FILL LINES AND CLOSE ANNULAR. - ATTEMPT TO PRESSURE UP AND "0" RING LEAKING ON 1502 UNION ON STAND PIPE MANIFOLD. -BLEED PRESSURE AND OPEN ANNULAR. - CIRCULATE ACROSS WELL MONITORING FLUID. 04:30 - 06:30 2.00 CASING N RREP 3,532.00 DECOMP PJSM ON CHANGING OUT "O" RING SEAL ON PIPING. -RIG DOWN CEMENT MANIFOLD AND MUD MANIFOLD TO REPAIR LEAK - CHANGE OUT "O" RING GASKET ON CEMENT LINE CONNECTION. -CIRULATE OVER THE HOLE TO MONITOR 06:30 - 07:00 0.50 CASING P DECOMP PJSM ON PRESSURE TESTING RBP. -RIG UP LINES AND RECORDER. *TEST RBP TO 1000 PSI FOR 5 CHARTED MINUTES. -RIG DOWN TEST EQUIPMENT. -BLOW DOWN LINES, RACK BACK 1 STAND DRILL PIPE. 07:00 - 11:00 4.00 CASING P DECOMP PJSM DUMP RIVER SAND ON TOP OF RBP. -DUMP 24 SACKS 20/40 SAND DOWN DRILL PIPE. *12 FT3 SAND =50 FEET IN 7" CASING. *SIM OPS- WELDER WELDING SOUNDPROOFING IN GENERATOR ROOM. *SIM OPS- DISCONNECT OLD HYDRAULIC LINES FROM OLD MOUSEHOLE BASE. *SIM OPS- GREASE AND CLEAN LOW TORQUE VALVES, INVENTORY PIPE RABBITS, PAINT MOUSEHOLE. 11:00 - 12:00 1.00 CASING P DECOMP PJSM ON TAGGING SAND AND PULLING OUT OF THE HOLE. -RUN IN THE HOLE AND NO TAG. - CIRCULATED 203 GPM WITH 200 PSI. -RACK BACK ONE STAND. *GAINED 2.5 BBLS FROM DUMPING RIVER SAND. 12:00 - 12:30 0.50 CASING P DECOMP WAIT ON SAND TO FALL. -BLOW DOWN TOP DRIVE. 12:30 - 13:00 0.50 CASING P DECOMP SERVICE AND INSPECT TOP DRIVE, BLOCKS AND DRAWWORKS. 13:00 - 13:30 0.50 CASING P DECOMP LATCH UP ONE STAND OF 4" DRILL PIPE. -RUN IN THE HOLE, TAGGED UP AT 3492 FEET, 40 FT ABOVE RBP. -RETAG TO CONFIRM DEPTH. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017 "W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:30 - 15:00 1.50 CASING P - DECOMP PJSM TO 14 PULL FEET. OUT OF HOLE FROM 3492 FEET -LAY DOWN RU T 15:00 - 16:00 1.00 FISH P ■- DECOMP CUTTER MAKING UP NNING 7" OOL. MULTI STRING CUTTER BHA #3. -MAKE UP CUTTER BHA. 16:00 - 17:30 1.50 FISH P DECOMP PJSM ON TRIP IN HOLE. -RUN IN HOLE TO 3437 FEET. 17:30 18:30 1.00 FISH P DECOMP C" CASING OPERATION. INITIALPARA 7 METERS: -PICK UP = 100K, ROTATE = 105K AT 80 RPM, TORQUE = 0. LOCATE CASING COLLARS WITH PUMP ON: -2BPM AT 180 PSI, 2.5 BPM AT 250 PSI, 3 BPM AT 350 PSI. *TOP COLLAR AT 3453 FT, BOTTOM COLLAR AT 3492 FT. *SPOT CUTTERS AT 3462 FT, 9 FT BELOW COLLAR. -BEGIN CUTTING AT 5.5 BPM AT 1000 PSI W/ 1 -3K T AT 80 RPM. -CUR ANO DROPPED FO OFF AND PUMP T PRESSU RE DECREASED 3 MINTUES TO150 PSI. D -WN -START SHUT P AND PUMP SLACK AND OFF PICK UP TO CON FT. FIRM LOCATION OF CUT AT 3462 FT. *OA PRESSURE AFTER CUT = 300 PSI. 18:30 20:00 1.50 CASING P DECOMP PJSM CIRCULATE OUREEZE PROTECT. -PUMP 70 BBLS DEEP T CLEAN F FOLLOWED BY 155 BBLS 140 DEGREE 8.5 PPG BRINE. 20:00 - 21:30 1.50 FISH P DECOMP LPA -RACK PJSM ON BACK TRIP 1 JOINT OUT OF 4" DRILL HOE O PIPE ERTION. . -BLOW DOWN -PULL OUT OF HOLE TOP WDRIVE. / CUTTER BHA. *KNIVES SHOWED WEAR AND RING PATTERN. 21:30 - 22:00 0.50 WHSUR P ■- DECOMP O WEAR BH -BACK PJSM T OUT PULL LOCK DOWN US SCREWS -PULL WEAR BUSHING. 22:00 - 00:00 2.00 CASING P DECOMP PJSM TO NIPPLE DOWN STACK. -BLOW DOWN ALL LINES TO STACK. - REMOVE FLOWLINE, BLEEDER, HOLE FILL AND CHOKE LINE. REMOVE RISER AND TURNBUCKLES. -SET STACK ON STUMP. 11/8/2012 00:00 - 02:30 2.50 CASING P DECOMP NIPWN , - NIPPLE PLE DOWN DO TUBING STACK HEAD WITH REDUCER BUSHING. - NIPPLE UP 30" 13 -5/8" 5M SPACER SPOOL. -SET IN STACK AND 4 -BOLT. *SIM OP: MOBILIZE SPEAR ASSEMBLY RIG FLOOR. 02:30 - 03:30 1.00 CASING P DECOMP PJSM TO MAKE UP SPEAR ASSEMBLY. MAKE UP 7" SPEAR BHA. -RUN IN HOLE AND ENGAGE SPEAR AT 29.5 FT. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.0179 Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 04:30 1.00 WHSUR P DECOMP RECOVER 7" CASING SLIPS FROM CASING HEAD. -CHECK OA AND OOA PRESSURES =0 PSI. - BACK OUT LOCK DOWN SCREWS. -BREAK CASING SLIPS WITH 110K SW AND PULL 1 FT. -BREAK 4 -BOLTS AND LIFT STACK. - REMOVE 7" CASING SLIPS AT CASING HEAD. 04:30 - 07:30 3.00 CASING P DECOMP NIPPLE UP BOPE. -SET STACK AND NIPPLE UP. - NIPPLE UP CHOKE, FLOW, BLEEDER AND HOLE FILL LINES. -RIG UP TURNBUCKLES. - INSTALL SECOND VALVE ON OOA. *SPILL DRILL, RESPONSE TIME: 1 MINUTE AND 48 SECONDS. 07:30 - 08:30 1.00 CASING P DECOMP PJSM TEST BOP BODY AND CHOKE LINE. -FLUSH AIR OUT OF LINES, CHECK FOR LEAKS. - PRESSURE UP TO 250 PSI LOW AND 2000 PSI HIGH FOR 5 CHARTED MINUTES. -BLOW DOWN CHOKE LINE. 08:30 - 09:30 1.00 CASING P DECOMP CIRCULATE CLEAN. -8 BPM AT 170 PSI. 09:30 - 11:30 2.00 CASING P DECOMP PJSM LAYING DOWN 7" CASING OPERATION. - RIG UP CASING EQUIPMENT. - LAY DOWN 4" DRILL PIPE AND CROSSOVER. -BLOW DOWN TOP DRIVE. -LAY DOWN TOP 7" CUT JOINT WITH SPEAR ASSEMBLY. -RIG UP CASING TONGS AND CHANGE OUT ELEVATORS. -MAKE UP 7" IJ4S CROSSOVER TO 4 -1/2" IF FOSV. 11:30 - 16:00 4.50 CASING P DECOMP PJSM ON LAYING DOWN 7" CASING OPERATION. -LAY DOWN 86 JOINTS 7" 26# L -80 IJ4S CASING FROM 3462 FT *CUT JOINT = 8.38 FT W/ FLARE = 7 -1/2 TO 7 -1/16 INCHES. 16:00 - 17:30 1.50 CASING P DECOMP PJSM TO DEMOBILIZE CASING EQUIPMENT. - DEMOBILIZE CASING RUNNING EQUIPMENT FROM RIG FLOOR. - MOBILIZE DRESS OFF TOOLS TO RIG FLOOR. 17:30 - 19:00 1.50 FISH P DECOMP PJSM TO MAKE UP 7" DRESS OFF SHOE ASSEMBLY, BHA #5. -DRESS OFF SHOE: 8 -1/2" X 7" -INNER MILL: 6 -1/2" X 2 -1/2" W/ BRASS TATTLE TALES. - SWALLOW = 5 FT. Printed 12/3/2012 11:00:11AM %� ? Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 21:00 2.00 FISH P DECOMP DRESS OFF 7" CASING STUB OPERATION. - OBTAIN SLOW PUMP RATES FOR BOTH PUMPS. - OBTAIN INITIAL PARAMETERS AS: -PICK UP =110K, SLACK OFF = 110K, 80 RPM W/ 1K TORQUE. -5.0 BPM AT 210 PSI. -TAG TOP OF STUB AT 3462 FEET W/ 5K WOB. -DRESS OFF STUB WITH 80 RPM AND 5.0 BPM, - SLIGHT TORQUE FLUCTATION TO 3K GOING OVER STUB., -SWALLOW 5 FT TO 3467 FT. - DRESS OF -6 INCHES. - VERIFY SLICK BY WORKING OVER W/O ROTATION OR PUMPS -OK. 21:00 - 21:30 0.50 FISH P DECOMP CIRCULATE CLEAN. -10 BPM AT $30 PSI. 21:30 - 22:00 0.50 FISH P DECOMP PREP TO CUT DRILLING LINE. -RACK BACK ONE STAND 4" DRILL PIPE. - BLOW DOWN TOP DRIVE . -- INSTALL FOSV. -* KICK WHILE TRIPPING DRILL, RESPONSE TIME: 1 MINUTE AND 5 SECONDS. 22:00 - 00:00 2.00 FISH P DECOMP PJSM ON SLIP AND CUT DRILLING LINE OPERATION. - HANG BLOCKS. -SLIP AND CUT DRILLING LINE. 11/9/2012 00:00 - 01:00 1.00 FISH P DECOMP TRIP OUT OF' HOLE W/ 7" DRESS OFF SHOE. -FROM 3462 TO DRILL COLLARS. 01:00 - 02:00 1.00 FISH P DECOMP PJSM ON LAYING DOWN 7" DRESS OFF MILL BHA. -FLOW CHECK - STATIC. - LAY DOWN DRESS OFF MILL ASSEMBLY. 'INNER MILL SHOWED WEAR AND PATTERN. 02:00 - 02:30 0.50 FISH P DECOMP DEMOBILZE DRESS OFF TOOLS FROM RIG FLOOR. MOBILIZE SCOOP GUIDE TOOLS TO RIG FLOOR. 02:30 - 03:30 1.00 CASING P DECOMP PJSM ON PICKING UP 7" SCOOP GUIDE BHA. -PICK UP CUT LIP GUIDE W/ OVER SHOT BOWL LOADED WITH 7" SPIRAL GRAPPLE. -MAKE UP 7" SCOOP GUIDE (8 -3/8" X 6 -1/4 ") TO RUNNING TOOL WITH SHEAR PINS. -RUN IN HOLE WITH BUMPER JARS, OIL JARS AND (6) 4 -3/4" DRILL COLLARS. 03:30 - 05:00 1.50 CASING P DECOMP TRIP IN HOLE WITH 7" SCOOP GUIDE. -TO 3462 FT. 05:00 - 06:00 1.00 CASING P DECOMP SET 7" SCOOP GUIDE. -PICK UP 105K AND SLACK OFF 105K. -TAG AT 3462 FT. - SET 7" SCOOP GUIDE AT 3462 FT. -SHEAR W/ 25K OVER. -CHECK SHEARED WITH ROTATION - NO TORQUE. -BLOW DOWN THE TOP DRIVE Printed 12/3/2012 11:00:11AM ✓ " may ` %'ok ' ,,o ,-1 ^� Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Site: PB E Pad Project: Prudhoe Bay Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:OO:OOAM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: 0148 °40'06.017' / La t: 070 °20'19.961 "1 Long: W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 07:30 1.50 CASING P DECOMP PJSM ON TRIP OUT OF HOLE W/ RUNNING TOOL. - PULL OUT OF HOLE FROM 3462 FEET TO DRILL COLLARS. -10 MINUTE FLOW CHECK - STATIC. -RACK BACK 2 STANDS OF 4 -3/4" DRILL COLLARS. *KICK DRILL, RESPONSE TIME: 2 MINUTES AND 37 SECONDS. 07:30 - 08:30 1.00 CASING P DECOMP HANDLE SCOOP GUIDE RUNNING TOOL BHA. - LAY DOWN CROSSOVER. - CHANGE OUT ELEVATORS. -LAY DOWN FLOAT SUB, JARS, BUMPER SUB AND RUNNING TOOL. *24 HOUR NOTICE OF BOPE TEST TO AOGCC 1t -9 20 EMAIL. 12 AT 8:00 AM VIA 08:30 09:30 1.00 CASING P DECOMP PJSM ON PICKING UP HES 9 -5/8" RETRIEVABLE BRIDGE PLUG. -CALIBRATE BLOCK HEIGHT -CHANGE ELEVATORS -BREAK 1 STAND OF 4" DRILL PIPE. -MAKE UP RUNNING TOOL AND RETRIEVABLE BRIDGE PLUG. -MAKE UP SINGLE OF DRILL PIPE. 09:30 - 10:30 1.00 CASING P DECOMP PJSM ON TRIP IN HOLE W/ RBP. -TRIP IN HOLE W/ RBP TO 2106 FT. 10:30 11:00 0.50 CASING P DECOMP SET 9 -5/8" RETRIEVEABLE BRIDGE PLUG. - INITIAL PARAMETERS AS: -PICK UP = 85K, SLACK OFF WEIGHT = 85 K. *SET RPB AT 2164 FT. -CHECK SET WITH 15K WEIGHT AND 15K OVER PULL. -TEST TO 1000 PSI FOR 5 MINUTES. -RELEASE FROM RBP W/ QUARTER TURN. -RACK BACK (2) STANDS DRILL PIPE. -BLOW DOWN THE TOP DRIVE AND KILL LINE. 11:00 14:00 3.00 CASING P DECOMP PJSM DUMP ON DUMPING SAND ON RBP. 46 SACKS (2300 LB OF 20/40 RIVER SAND. - 50 FT IN 9 -5/8" CASING. *SIM OPS INSPECT TOP DRIVE AND BLOCKS. 14:00 - 14:30 0.50 CASING P -AT DECOMP DISPLACE SAND FROM DRILL PIPE. PUMP DRILL STRING VOLUME. 4 BPM AND 50 PSI. -BLOW DOWN THE TOP DRIVE. 14:30 15:30 1.00 CASING P DECOMP MOBILIZE 9 5/8" MULT- CUTTER TOOLS TO RIG FLOOR. *SIM OPS, ALLOW FOR SAND TO FALL. *AOGCC, JOHN CRISP, WAIVED WITNESS 11 -9 -2012 AT 2: PM VIA EMAIL. 15:30 - 16:30 1.00 CASING P DECOMP TRIP OUT OF HOLE 40 WITH RBP RUNNING TOOL *TAG SAND AT 2112 FT. -PULL OUT OF HOLE FROM 2106 FEET TO RUNNING TOOL. 16:30 - 17:00 0.50 CASING P DECOMP PJSM ON LAYING DOWN RBP RUNNING TOOL. - LAYDOWN RUNNING TOOL. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.9611 Long: 0148 °40'06.017 "W Active Datum: ORIG KELLY BUSHING ©60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 17:30 0.50 FISH P DECOMP PJSM ON MAKING UP MULTI - CUTTER BHA #7. -MAKE UP BAKER 9 -5/8" MULTI - STRING CUTTER. 17:30 - 18:30 1.00 FISH P DECOMP RUN IN THE HOLE WITH MULTI - CUTTER. - TO 2005 FEET. 18:30 - 19:00 0.50 FISH P DECOMP SPOT 9 -5/8" MULTI - STRING CUTTER. -PICK UP AND SLACK OFF AT 85K. - LOCATE TOP COLLAR AT 2052 FT AND BOTTOM COLLAR AT 2090 FT. -SPOT KNIVES AT 2062 FT. 19:00 - 21:30 2.50 FISH P DECOMP PJSM ON ARCTIC PACK DISPLACMENT. -RIG UP LITTLE RED TO CEMENT LINE. -TEST LINES TO 2000 PSI. BLOW AIR THROUGH LINE TO TIGER TANK. - VERIFY OOA PRESSURE =O. CUTTING PARAMETERS: 5.5 BPM AT 600 PSI W/ 80 RPM WI 1K TORQUE. "CUT 9 -5/8" CASING AT 2062 FEET. - TORQUE INCREASED TO 4K AND PRESSURE DECREASED TO 440 PSI. 21:30 - 00:00 2.50 CASING P DECOMP DISPLACE ARCTIC PACK FROM 9 -5/8" X 13 -3/8" ANNULUS. -RIG UP CEMENT HOSE TO DRILL PIPE. -PUMP 21 BBL 90 DEG DIESEL WITH LITTLE RED DOWN DRILL PIPE. -2.0 BPM AT 150 PSI. *CLOSE ANNULAR PREVENTER. - PUMP 22 BBL 120 DEG 9.8 PPG BRINE. -2.0 BPM AT 170 PSI. -LET SOAK FOR 1 HOUR. *SHUT DOWN, BLOW DOWN LINES TO TIGER TANK. "MOBILIZE CASING TONGS TO RIG FLOOR. -PUMP 70 BBL 120 DEG 9.8 PPG DEEP CLEAN. -2.5 BPM AT 100 PSI. 11/10/2012 00:00 - 00:30 0.50 CASING P DECOMP DISPLACE ARCTIC PACK, CONT. -PUMP 220 BBL 9.8 PPG 120 DEG BRINE. - 8.5 BPM AT 1900 PSI. -10 MINUTE FLOW CHECK - STATIC. 00:30 - 01:00 0.50 CASING P DECOMP BLOW DOWN TIGER TANK AND CEMENT LINES. -RIG DOWN CEMENT LINE. 01:00 - 02:30 1.50 FISH P DECOMP TRIP OUT OF HOLE WITH 9 -5/8" MULTI - STRING CUTTER. -PULL OUT FROM 2062 FT. -LAY DOWN CUTTER ASSEMBLY. - TRANSFER (2) STANDS 4 -3/4" DRILL COLLARS TO OFF DRILLER SIDE. 02:30 - 05:00 2.50 BOPSUR P DECOMP PJSM ON RAM CHANGE OUT. - INSTALL TEST PLUG. -REMOVE 4-1/2 X 7" VBR FROM UPPER RAM CAVITY. - REPLACE WITH 9 -5/8" SOLID BODY RAMS. 05:00 - 06:30 1.50 BOPSUR P DECOMP PRESSURE TEST UPPER 9 -5/8" RAMS. -PICK UP 9 -5/8" TEST JOINT. -RIG UP TEST EQUIPMENT. -TEST 250/3500 HIGH FOR 5 CHARTED MINUTES. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:30 - 07:30 1.00 WHSUR P DECOMP RECOVER CASING PACK -OFF. -PICK UP JOINT OF 4" DRILL PIPE. -MAKE UP PACK OFF RETRIEVING TOOL. *ATTEMPT TO RECOVER CASING PACK -OFF W/O SUCCESS. -LAY DOWN RETRIEVING TOOL. 07:30 - 10:30 3.00 WHSUR P DECOMP - SPEAR 9 -5/8" CASING. -MAKE UP 9 -5/8" CASING SPEAR WITH NO-GO TO JOINT OF DRILL PIPE. - RUN IN HOLE TO 31 FT WITH 9 -5/8" SPEAR ASSEMBLY. - ENGAGE SPEAR WITH 10K DOWN. - VERIFY OOA PRESSUE = 0 PSI. -BACK OUT LOCK DOWN SCREWS. -FREE CASING HANGER FROM CASING HEAD W/ 160K. -PULL CASING'HEAD TO RIG FLOOR WITH 140K. -LAY DOWN -SPEAR AND HANGER. -MAKE UP FOSV TO 9-5/8" WITH CROSSOVER. -RIG UP 9 -5/8" CASING ELEVATORS. 10:30 - 14:00 3.50 CASING P DECOMP LAY DOWN 9 -5/8" BTS CASING. * 53 JOINTS AND 1 CUT JOINT. *0 CENTRALIZERS. *BREAK OUT TORQUE REQUIRED: 8 -9K FT -LBS. *CUT JOINT 10.96 FT W/ 10 -3/4" FLARE. 14:00 - 17:00 3.00 CASING P DECOMP CLEAN AND CLEAR RIG FLOOR OF CASING TOOLS AND EQUIPMENT. 17:00 - 17:30 0.50 BOPSUR P DECOMP PJSM ON WASHING STACK. -PICK UP STACK WASHER. -WASH STACK AT 16 BPM, W/ RECIPROCATION AND ROTATION. -RIG DOWN EQUIPMENT. 17:30 - 19:00 1.50 BOPSUR P DECOMP RIG UP TO TEST BOPE. RIG UP TEST EQUIPMENT WITH 4" TEST JOINT. *WELL KILL DRILL RESPONSE TIME: 1 MINUTE. * AOGCC, JOHN CRISP, WAIVED WITNESS. 19:00 - 00:00 5.00 BOPSUR P DECOMP PJSM ON TESTING BOPE. - TEST BOPE TO 250 PSI LOW AND 3500 PSI HIGH FOR 5 CHARTED MINUTES. -4" AND 9 -5/8" TEST JOINTS. -UPPER RAMS 9 -5/8" SOLID BODIES: 9 -5/8" TEST JOINT. -LOWER VBR 3 -1/2" X 6 ": 4" TEST JOINT. - ANNULAR: 4" TEST JOINTS. *ALL TESTS ACCORDING TO AOGCC, DWOP AND DOYON SPECIFICATIONS. 11/11/2012 00:00 - 03:00 3.00 BOPSUR P DECOMP BOPE TEST, CONT. -TEST IBOP, MANUAL VALVE, CHOKE MANIFOLD VALVES AND CHOKES. - SAFTEY VALVES: 4 -1/2" IF AND XT39 -DART VALVE: XT39. - KOOMEY DRAWDOWN TEST. Printed 12/3/2012 11:00:11AM f'/�, ., :5,k n £fi t: ; ,s Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017"W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 06:00 3.00 BOPSUR N RREP DECOMP PJSM ON CHANGING KILL SIDE HCR. - REMOVE HCR. - REPLACE WITH NEW. - TESTED TO 250 LOW AND 3500 HIGH FOR 5 CHARTED MINUTES. TEST GOOD. 06:00 - 07:00 1.00 BOPSUR P DECOMP RIG DOWN BOP TEST EQUIPMENT -BLOW DOWN CHOKE MANIFOLD AND KILL LINE -RIG DOWN BOP TEST EQUIPMENT. - PULL TEST PLUG. 07:00 - 11:00 4.00 FISH P DECOMP PJSM ON PICKING UP DRESS OFF BHA OPERATIONS. -PICK UP AND MAKE UP 12" X 9 -5/8" DRESS OFF SHOE -10- 3/16" X 7 -3/4" INNER DRESS MILL - 13-3/8" CASING SCRAPER - BUMPER JARS, OIL JARS AND 6 - 6 -3/4" DRILL COLLARS. 11:00 - 12:00 1.00 FISH P DECOMP TRIP IN HOLE W/ DRESS OFF BHA - CHANGE OUT 4 -1/2" ELEVATORS TO 4" ELEVATORS -TRANSFER 4 -1/4" DRILL COLLERS TO DRILLERS SIDE - TRIP IN HOLE WITH DRESS OFF BHA TO 2038' -PICK UP 1 STAND OF DRILL PIPE TO TAG 9 -5/8" CASING 12:00 - 12:30 0.50 FISH P DECOMP ESTABLISHED PARAMATERS PRIOR TO DRESSING OFF 9 -5/8" CASING - OBTAIN SPR'S -PICK UP =95K, SLACK OFF =95K, ROTATING =95K -TEST GAS ALARMS -TAG TOP OF 9 -5/8" CASING AT 2062' 12:30 - 13:00 0.50 FISH P DECOMP DRESS OFF 9 -5/8" CASING - MILLED AT 80 RPM, 1 -4K TORQUE, 6 BPM, 200 PSI -PICK UP, STOP ROTATION AND TAG W/ INNER MILL AT 5K WOB -PICK UP, START ROTATION AND MILL 4" W/ 2K WOB -PICK UP, STOP ROTATION, SLIDE OVER STUMP WITHOUT ISSUE 13:00 14:00 1.00 FISH P ■- DECOMP PUMP DEEP CLEAN PILL -PUMP 40 BBL DEEP CLEAN PILL AT 6 BPM, TIMES 2 SURFACE TO SURFACE 14:00 - 16:00 2.00 FISH P DECOMP PJSM ON TRIPPING OUT WITH DRESS OFF BHA -BLOW DOWN TOP DRIVE -TRIP OUT F/ 2038' TO 234' -LAYED DOWN 6 - 6 -1/4" DRILL COLLARS 16:00 - 18:00 2.00 FISH P DECOMP PJSM ON LAYING DRESS OFF BHA -LAY DOWN 13 -3/8" DRESS OFF BHA. -BLOW DOWN CHOKE AND KILL LINES - REMOVED BAKER TOOLS FROM RIG FLOOR. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017 "W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 18:00 - 23:00 5.00 BOPSUR P DECOMP HELD PJSM ON NIPPLING DOWN BOP - NIPPLE DOWN STACK - CLEANED DRIP PAN OF ARCTIC PACK -BLOW DOWN AND REMOVE HOLE FILL AND BLEED OFF LINES - REMOVED FLOW LINE, RISER, CHOKE LINE, UPPER OA VALVE, SPACER SPOOL AND CASING HEAD -RACK BACK AND SECURE BOP -REMOVED VALVES FROM WELLHEAD * SIM OPS: -CLEAN 9-5/8" CASING FOR BAKER LOCK -MOB 9 -5/8" CENTRALIZERS TO RIG FLOOR -MOB LIFT CYLINDER FOR CASING TONGS TO RIG FLOOR -MOVED 4 -3/4" DRILL COLLARS TO ODS - REMOVED 4" ELEVATORS AND INSTALLED 9 -5/8" SIDE DOOR ELEVATORS 23:00 - 00:00 1.00 WHSUR P DECOMP HELD PJSM ON CUTTING 13 -3/8" CASING WITH WACHS CUTTER -RIG UP WACHS CUTTER TO CUT 13 -3/8" CASING 11/12/2012 00:00 - 01:00 1.00 WHSUR P DECOMP WACHS CUT 13 -3/8" CASING, CONT. -WACHS CUT 13 -3/8" CASING JUST ABOVE THE 20" X 30" INSULATED CONDUCTOR -SET OUT 13 -3/8" CASING HEAD - RIGGED DOWN WACHS CUTTER *CUT 1.5 INCH ABOVE SURFACE CASING HANGER NECK. 01:00 - 03:00 2.00 CASING P DECOMP CLEANED UP CELLAR AREA -CLEAN CELLAR, MOVED OUT TUBING SPOOL AND CASING HEAD - RUN LINES FROM VAC TRUCK TO CELLAR TO TAKE RETURNS FROM CASING - FINISH RIGGING UP POWER TONGS AND TORQUE TURN 03:00 - 12:00 9.00 CASING P DECOMP PJSM ON RUNNING 9 -5/8" CASING - PICKED UP 9 -5/8" BOWEN CASING PATCH, PUP JOINT, BAKER ECP AND PUP JOINT (ASSEMBLY # 1) - PICKED UP PUP JOINT, HES CEMENTER AND CROSS OVER TO HYD 563 (ASSEMBLY # 2) - BAKER LOCKED ASSEMBLY # 1 AND # 2 - PICKED UP AND MADE UP PUP JOINT AND 50 JOINTS OF 9 -5/8 ", 40 #, L -80, HYD 563 - PLACED FREE FLOATING CENTRALIZERS ON PUP JOINT AND 49 JOINTS OF CASING -FROM 78 FT TO 2062 FT, SWALLOWED TO 2064 FT. - VERIFIED 20K DOWN AND OVERPULL 30K TO INSURE THAT GRAPPLE SET. -20K DOWN THEN 150K OVER STRING WEIGHT LOWERED DOWN TO 125K AND SET SLIPS. -MAKE UP CROSSOVER FOR CEMENT HEAD. *JET LUBE SEAL GUARD THREAD COMPOUND. *MAKE UP TORQUE =13K FT -LBS. Printed 12/3/2012 11:00:11AM Common Well Name: E-20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3-01129-C:E2OBRWO (3,960,000.00 ) ' Project: Prudhoe Bay Site: PB E Pad Rig Name/No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070°2019.9611 Long: 0148°4006.017W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Firs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 13:00 1.00 CASING P DECOMP PJSM SET ECP. -RIG UP BLEED LINE INTO CEMENT HEAD EQUIPEMENT *SIM-OPS, SPOT TRUCKS AROUND RIG. 13:00 - 13:30 0.50 CASING P DECOMP FLUID PACK LINES TO INFLATE ECP. -STAGE PUMPS UP TO 600 PSI, THEN 800 PSI AND FINALLY 1000 PSI, TEST FOR 5 MINUTES. -CONTINUE STAGING PUMPS UP IN 200 PSI INCRIMENTS TO 2400 PSI. *SHEARED ESP AT 2500 PSI, TOOK RETURNS TO CELLAR. "SIM OPS-CONTINUE SPOTTING TRUCKS FOR DISPLACEMENT 13:30 - 15:30 2.00 CASING P DECOMP PJSM DISPLACEMENT OPERATIONS. -LINE UP TO PUMP 270 BBLS HEATED SEAWATER AND TAKE RETURNS TO CELLAR. -ICP 3 BPM AT 80 PSI. -STAGE PUMPS UP TO 4 BPM AT 90 PSI, THEN 5 BPM AT 120 PSI. - 100 BBLS AWAY AT 5 BPM AT 140 PSI. -STOPPED PUMPING AT 110 BBLS DUE TO CONTAMINATED RETURNS. -CONTINUE PUMPING 2 BPM AT 50 PSI -AT 130 BBLS AWAY 3.5 BPM AT 90 PSI FOR A TOTAL OF 267 BBLS TOTAL. *RETURN TEMPERATURE 93 DEGREES AT THE END OF PUMPING OPERATIONS. 15:30 - 17:00 1.50 CASING P DECOMP PJSM FOR CEMENTING OPERATATIONS -CLEAN CELLAR. -STAGE TRUCKS AROUND RIG FOR CEMENT JOB 17:00 - 00:00 7.00 CASING NI CEMT DECOMP RIG UP AND PRESSURE TEST CEMENT LINES. -ATTEMPTED TO PRESSURE TEST LINES TO 250 PSI LOW AND 4500 PSI HIGH -TROUBLE SHOOT PRESSURE LOSS IN CEMENT LINES. - CHANGED OUT DEMCO VALVE ON CEMENT STAND PIPE, RETESTED WITHOUT SUCCESS -CONTINUED ISOLATING VALVES AND CEMENT UNIT, RETESTING WITHOUT SUCCESS -CHANGED OUT 2 LOW TORQUE VALVES ON CEMENT MANIFOLD 11/13/2012 00:00 - 03:00 3.00 CASING N CEMT DECOMP CONTINUE TROUBLE SHOOT PRESSURE LOSS IN CEMENT LINES. -RIGGED UP BOP TEST PUMP ON CEMENT STAND PIPE IN CELLAR -PRESSURE TEST WITHOUT SUCCESS - RIGGED UP BOP TEST PUMP ON LOW TORQUE VALVE COMING FROM CEMENT STAND PIPE. -PRESSURE TEST WITHOUT SUCCESS -CHANGED OUT LOW TORQUE VALVE -CONTINUED PRESSURE TESTING ALL VALVES AND LINES WITH BOP TEST PUMP UP TO CEMENT HEAD. -DETERMINED CEMENT HEAD WAS NOT HOLDING PRESSURE. - DECISION MADE TO CHANGE OUT CEMENT HEAD. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017'W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:00 - 03:30 0.50 CASING N CEMT DECOMP R/D CEMENT HEAD. - REMOVED ES CEMENTER CLOSING PLUG. 03:30 - 04:30 1.00 CASING N CEMT DECOMP RIGGED UP CEMENT LINES. - RIGGED UP BOP TEST PUMP ON CEMENT STAND PIPE IN CELLAR. - PRESSURE TESTED BACK TO MANIFOLD JUST BEFORE CEMENT HEAD TO ENSURE NO LEAK IS FOUND. -TEST WAS GOOD AT 250 PSI LOW AND 4500 PSI HIGH. *LOCATING BACK UP CEMENT HEAD. *ORDERED 290 BBLS, 120 DEGREE HEATED SEAWATER TO CIRCULATE WELLBORE PRIOR TO CEMENT JOB 04:30 - 06:00 1.50 CASING N CEMT DECOMP CHANGED OUT CEMENT HEAD. - BROUGHT BACK UP CEMENT HEAD TO RIG FLOOR. -STEAMED CEMENT HEAD. - LOADED WITH ES CEMENTER CLOSING PLUG, VERIFIED BY WSL. -MADE UP CEMENT HEAD ON 9 -5/8" CASING. 06:00 - 08:00 2.00 CASING P DECOMP CIRCULATE 80 BBLS OF 120 DEGREE ■ SEAWATER THROUGH THE WELL TO WARM UP TO WELLBORE FLUIDS TO 80 DEGREES. 08:00 - 08:30 0.50 CASING N CEMT DECOMP PJSM ON CEMENTING 9 -5/8" CASING WITH THIRD PARTY CONTRACTORS AND RIG CREW. BATCH UP 15.8 PPG SLURRY IN THE CEMENT TRUCK AND RIG UP TO PUMP. PUMP 1 BBL OF CEMENT AND BEGIN TO SEE A RESTRICTION IN THE HARD LINE TO THE RIG. BLEED OFF PRESSURE. 08:30 - 10:00 1.50 CASING N CEMT DECOMP THAW OUT THE HARD LINE WITH STEAM AND VERIFY THE LINES ARE FREE OF ICE PLUG THAT WAS LOCATED IN THE 90 DEGREE IN THE CEMENT HARD LINE TO THE RIG. 10:00 - 12:00 2.00 CASING N CEMT _ DECOMP CLEAN OUT THE CEMENT TUBS AND PREPARE FOR THE CEMENT JOB. 12:00 - 12:30 0.50 CASING P -_ DECOMP COMPLETE THE FLUID TRANSFER PERMITS AND PJSM WITH THE TRUCK DRIVERS. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017 "W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:30 - 15:00 2.50 CASING P DECOMP LINE UP AND TEST THE CEMENT LINES TO 250 PSI LOW AND 4500 PSI HIGH FOR 5 MINUTES EACH TEST. GOOD TESTS. BEGIN PUMPING 121 BBLS OF 15.8 PPG CLASS G CEMENT AT 4 BPM WITH 398 PSI ICP AND 340 PSI FCP. FULL RETURNS TO THE CELLAR DURING THE PUMPING OF THE CEMENT. DROP THE ES CEMENTER PLUG AND KICK OUT WITH 10 BBLS OF SEAWATER FROM SCHLUMBERGER. SWITCH OVER TO THE RIG PUMPS AND DISPLACE AT 6 BPM WITH 110 PSI. CATCH THE CEMENT AT 67 BBLS DISPLACED PUMPING AT 6 BPM WITH 400 PSI. WATCH PRESSURE INCREASE TO 930 PSI BEFORE SLOWING DOWN TO 2 BPM AT 132 BBLS DISPLACED WITH 730 PSI. SAW CEMENT CONTAMINATED RETURNS TO SURFACE AT 118 BBLS DISPLACED AND 20 BBLS OF GOOD CEMENT TO SURFACE AFTER THE DISPLACEMENT WAS COMPLETED. BUMP THE PLUG AT 142 BBLS DISPLACED WITH 800 PSI FCP. PRESSURE UP TO 1730 PSI AND HAVE POSITIVE INDICATION ON SURFACE OF ES- CEMENTER CLOSING. BLEED OFF THE PRESSURE AND FLOW CHECK THE WELL FOR 10 MINUTES. NO FLOW. CIP 14:27. 15:00 - 16:00 1.00 CASING P DECOMP PJSM CLEAN AND CLEAR RIG FLOOR. - CLEAN CEMENT VALVES, CELLAR BOX AND CASING AND CEMENTING EQUIPMENT. 16:00 - 19:00 3.00 WHSUR P DECOMP PJSM POSITION CAMERON SLIP LOCK HEAD INTO CELLAR AREA. -DEMOB CEMENT EQUIPMENT, VALVES AND CASING EQUIPMENT OFF THE RIG FLOOR. 19:00 - 00:00 5.00 WHSUR P DECOMP PJSM WITH CAMERON TO CUT CASING AND INSTALL HEAD. -CUT CASING AT 70.5" FROM GROUND LEVEU62.75" FROM TOP OF RING (RING IS 7.75" THICK) -CUT JOINT =31.34 FEET. - TEST VOID TO 250 PSI LOW FOR 5 MINUTES AND 2500 PSI HIGH FOR 30 MINUTES. -TORQUE LOWER SECTION TO ENGAGE CASING HEAD SLIPS. *SIM OPS- CLEAN UNDER FLOW LINE OF THE SHAKERS AND CLEAN TRIP TANK. *SIM OPS- WORK ON 4 -1/2" TUBING IN THE PIPE SHED. 11/14/2012 00:00 - 00:30 0.50 WHSUR P DECOMP TORQUE UP LOWER SECTION OF CAMERON WELLHEAD, CONT. 00:30 - 04:00 3.50 BOPSUR P DECOMP PJSM INSTALL BOP STACK. - INSTALL RISER, CHOKE AND FLOW LINES. 04:00 - 04:30 0.50 BOPSUR P DECOMP P/U WEAR RING, TEST PLUG, X -O, & WEAR RING RUNNING TOOL FROM GROUND TO RIG FLOOR. 04:30 - 08:00 3.50 BOPSUR P DECOMP PJSM AND CHANGE OUT UPPER TOP RAMS FROM 9 5/8" SOLID TO 2 7/8" X 5" VBR'S. - SHELL TEST BOP STACK WITH 250 PSI LOW AND 3500 PSI HIGH FOR 5 MINUTES. *TEST GOOD. Printed 12/3/2012 11:00:11AM i�fr� F Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017 "W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 08:00 - 08:30 0.50 WHSUR P DECOMP PULL TEST PLUG & INSTALL WEAR RING. 08:30 - 11:00 2.50 CLEAN P DECOMP PJSM MAKE UP DRILL OUT BHA #10. -PICK UP BAKER TOOLS THROUGH BEAVER SLIDE TO RIG FLOOR. -MAKE UP CROSSOVERS FOR SAFETY VALVE TO RUN SHEARABLES ACROSS THE STACK. -MAKE UP BIT BOOT BASKETS AND BUMPER SUB WITH JARS AND PUMP OUT SUB TO 230'. CHANGE OUT ELEVATORS FROM 4 -1/2" TO 4 ". 11:00 - 12:00 1.00 CLEAN P DECOMP RUN IN THE HOLE FROM 230' TO 1940'. -KELLY UP, SLACK OFF WEIGHT -95K, PICK UP WEIGHT -93K, TORQUE -1, RPM -100. *CEMENT STRINGERS TAGGED AT 1995'. *WASH DOWN TO 2018'. *TAGGED PLUG @ 2018'. *OBTAIN SLOW PUMP RATES. 12:00 - 15:00 3.00 CLEAN P DECOMP OBTAIN OPERATIONAL PARAMETERS, PICK UP WEIGHT 93K, SLACK OFF WEIGHT 95K. ROTATING WEIGHT 95K, 100 RPM =1 TORQUE ON BOTTOM, 240 GPM =210 PSI, WEIGHT ON BIT 5K. *DRILLED THRU PLUG TO 2021' *REAMED THRU PLUG 2 TIMES. *DRILLING CEMENT FROM 2021' TO 2070'. *TAGGED SAND @ 2115' *DRY DRILLED ON SAND FOR 10 MINUTES 15:00 - 16:30 1.50 CLEAN P DECOMP PUMP HIGH VIS SWEEP - CIRCULATE SURFACE TO SURFACE TWO TIMES. *6 BPM =210 PSI, 8 BPM =370 PSI,10 BPM =530 PSI, 15 BPM =1210 PSI. *100 RPM R -R, 16:30 - 17:30 1.00 CASING P DECOMP RIG UP TO TEST CASING. -TEST CASING TO 250 PSI LOW AND 3500 PSI HIGH. COULD NOT GET SUCCESSFUL TEST DUE TO HYDRAULICS. DECIDED TO POOH TO TEST ON BLIND RAMS. -RIG DOWN TEST EQUIPMENT, BLOW DOWN LINES. 17:30 - 18:30 1.00 CLEAN P DECOMP PJSM PULL BHA #10 OUT OF THE HOLE. -BLOW DOWN TOP DRIVE. - MONITOR WELL FOR 10 MINUTES - STATIC. -PULL OUT OF THE HOLE FROM 2035' TO 300'. 18:30 - 20:30 2.00 CLEAN P DECOMP PJSM CHANGE OUT BHA -RACK BACK 2 STANDS OF 6 1/4" DRILL COLLARS. -BREAK OFF BIT, REMOVE BOOT BASKETS AND CLEAN. -PICK UP AND MAKE UP CASING SCRAPER, BOOT BASKETS AND REVERSE CIRCULATION JET BASKET. Printed 12/3/2012 11:00:11AM f�f�r/ /j j% ? Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017 "W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 22:00 1.50 CASING P DECOMP PJSM TEST CASING - RIG UP EQUIPMENT TO TEST CASING. - PURGE KILL LINE, CLOSE BLIND SHEAR RAMS, PURGE CHOKE LINE. -TEST 250 PSI LOW AND 3500 PSI HIGH FOR 30 MINUTES. TEST GOOD AND APPROVED BY J. WILLINGHAM. *TOTAL VOLUME PUMPED 2.5 BBLS, 2.2 BBLS RETURN. -BLOW DOWN CHOKE AND KILL LINES. -LINE UP VALVES TO DRILLING MODE. 22:00 - 23:30 1.50 CLEAN P DECOMP PJSM REVERSE CIRCULATING OPERATIONS. -RUN IN THE. HOLE WITH SCRAPER BHA. *WITH 2 STANDS OF 6 -1/4" DRILL COLLARS, CROSSOVER AND PUMP OUT SUB. -RUN IN THE HOLE WITH DRILL PIPE FROM 244' TO 2048'. 23:30 - 00:00 0.50 CLEAN P DECOMP SET DEPTH AT 2048'. - OBTAIN OPERATIONAL PARAMETERS. *PICK UP WEIGHT 95K, SLACK OFF WEIGHT 95K, PUMP RATE 3 BPM AT 270 PSI. - WITH PUMPS OFF TAGGED AT 2112'. - PICK UP STRING AND DROP 1 -1" BALL FOR PUMP OUT SUB. -BRING PUMP RATE UP TO 7 BPM AT 2710 PSI. *OBTAIN SLOW PUMP RATES. -WASH DOWN TO 2125' WITH NO PROBLEMS. 11/15/2012 00:00 - 00:30 0.50 FISH P. DECOMP CIRCULATE WHILE WORKING PIPE FROM 2115' TO 2125' @ 7 BBUMIN (2720 PSI). *CIRCULATE UNTIL HOLE CLEANED UP (2 X BOTTOMS UP +) (275 BBLS (B /U =127 BBLS)). 00:30 - 01:00 0.50 FISH P ®_ DECOMP 10 MIN FLOWCHECK. *BLOW DOWN TOP DRIVE. 01:00 02:00 1.00 FISH P ■- DECOMP POOH FROM F'. *FLOW CHECK K WELL BEFORE NON - SHEARABLES ACROSS SHACK. 02:00 - 02:30 0.50 FISH P DECOMP MAKE UP X -O. *CHANGE OUT 4" ELEVATORS FOR 4.5" ELEVATORS. *RACK BACK 6.25" DRILL COLLARS. 02:30 03:00 0.50 FISH P DECOMP BREAK DOWN REVERSE CIRCULATION JUNK BASKET AND CHECK FOR DEBRIS -NONE FOUND. *MAKE UP BASKETS AND RCJB. *RIH WITH SAME AND 6.25" DRILL COLLARS TO 244'. *CHANGE OUT ELEVATORS FROM 4.5" TO 4 ". 03:00 - 04:00 1.00 FISH P DECOMP RIH TO 2122'. *TAG SAND AT 2122'. *WASH DOWN WITH 30 RPM= 1K TORQUE ON BOTTOM, 7 BPM =2840 PSI, 5K WOB. *WASH TO 2142'. 04:00 - 05:00 1.00 FISH P -_ DECOMP CIRCULATE 2 X B/U TO CLEAN HOLE WHILE WORKING PIPE 32'. 05:00 - 06:00 1.00 FISH P -_ DECOMP FLOW CHECK WELL - GOOD. * POOH FROM 2142' TO 242'. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017 "W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:00 - 09:30 3.50 FISH P DECOMP -* TO NK BASKET. DID LL NOT FIND JU ANY JUNK IN BASKET. AY DOWN BOOT BASKETS, BUMPER SUB, O JARS PUMP B -LAY DOWN ALL BAKER OUT T T () S O U FROM OPERA IL TION. AND - UP ALL BHA COMPON NEW BHA. 09:30 - 11:00 1.50 BOPSUR P DECO MP !CKUP KER BRIDGE PLUG RETRIEVAL TO -RUN IN THE E HES HOLE WITH 4" DRILL PIPE. 11:00 - x1:30 0.50 BOPSUR P DECOMP DOWN 2096' W 8 BPM AT 230 PSI. -PUMP HIGH VIS TO SWEEP. ITH -PUMP DOWN TO 2160'. X1:30 - 12:00 0.50 BOPSUR P DECOMP SET RETRIEVAL TN RBP -SET 5K DOWN ON OOL PLUG. PU 20K OVER TO MAKE SURE IT WAS O LATCH - SLACKED OFF 20K DOWN, TURNED TS FOR HALF A TURN TO THE RIGHT AND OVERPULLED 15K OVER -LET PACKER REST FOR 5 MINUTES. ED -PULL UP 5 FEET, THEN SLACK OFF PAST WHERE UT 2160' 10 MINUTES FLOW CHECK - STATIC UP. -STAND BPLACK G WAS 1 STAND. SET A -BLOW DOWN TOP DRIVE 12:00 13:00 1.00 BOPSUR P DECOMP PJSM PULL OUT OF THE HOLE. - PULL RBP OUT OF HOLE FROM 2096 FEET TO 101 FEET. 13:00 - 13:30 0.50 BOPSUR P DECOMP PJSM OL LAY DOWN RBP -BREAK OFF IG TOP FLOO SING" LE -PULL OUT DOUBLE AND HES OF 4 RETRIEVAL . TO TO RR. LE - REMOVE RBP, BREAK OUT HES RUNNING TOOL. 13:30 - 15:30 2.00 FISH P DECOMP PJSM MAKE UP BHA #12. -LAY DOWN HES TOOLS. - MOBILIZE BAKER TOOLS TO RIG FLOOR. - MAKE UP OIL JAR, BUMPER SUB, BIT SUB, 7" CASING SCRAPER,(4) BOOT BASKETS, - DOUBLE PIN SUB, JET BASKET, PUMP OUT SUB, CROSSOVER AND (2) STANDS 4 -3/4" DRILL COLLARS. 15:30 17:00 1.50 FISH P DECOMP PJSM RUN IN THE HOLE WITH 4" DRILL PIPE. *FROM 235' TO 3464' SET DEPTH. 17:00 17:30 0.50 FISH P DECOMP OBTAIN OPERATIONAL PARAMETERS. 30 RPM -PICK UP WEIGHT 105K, SLACK OFF WEIGHT 110K, ROTATING WEIGHT 105K, = 1 FREE TORQUE. -5 BPM AT 400 PSI, 6 , 8 BPM AT . - DROP 880 7/8 LL TOA CTIVATE BPM AT 530 REVERSE CIRCULATION. BA 9 BPM AT 1600 PSI. N PUMPS AGGE' -WA DOWN OFF 15 FEET AND NEW T TOP D AT SAND 3481 TO . 3496'. *OBTAIN SLOW PUMP RATES. Printed 12/3/2012 11:00:11AM ""'� '*' P%/j, e ' aw e e . •s's•ba� ,� ; ��. lit, , m Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:30 - 19:00 1.50 FISH P DECOMP PUMP HIGH VIS SWEEP. - CIRCULATE BOTTOMS UP x (2). - MONITOR WELL FOR 10 MINUTES - STATIC. 19:00 - 19:30 0.50 FISH P DECOMP RACK BACK ONE STAND OF 4" DRILL PIPE. -BLOW DOWN TOP DRIVE. *KICK WHILE TRIPPING DRILL, RESPONSE TIME : 52 SECONDS. - AFTER ACTION REVIEW FOR DRILL. -PJSM FOR TRIPPING OUT OF THE HOLE. 19:30 - 21:00 1.50 FISH P DECOMP PULL OUT OF THE HOLE FROM 3464 FEET TO 300 FEET. - MONITOR WELL FOR 10 MINUTES - STATIC. 21:00 - 23:30 2.50 FISH P DECOMP PJSM LAY DQWN BHA - LAY DOWN 4 -3/4" DRILL COLLARS. - BREAK DOWN BHA. - INSPECT JUNK FROM BASKET. METAL FOUND IN BASKETS. APPEARS TO BE GRAPPLE PIECES. *DECISION °MADE TO RUN IN THE HOLE WITH SAME BHA TO CHECK FOR MORE METAL. -PICK UP (6) 4 -3/4" DRILL COLLARS. 23:30 - 00:00 0.50 FISH P DECOMP RUN IN THE HOLE WITH RCJB FROM 235 FEET TO 679 ON 4" DRILL PIPE. 11/16/2012 00:00 - 01:00 1.00 FISH P DECOMP RUN IN THE HOLE WITH RCJB, CONT. FROM 679 FEET TO 3464 FEET. - INSTALL TOP DRIVE FILL PIPE. 01:00 - 01:30 0.50 FISH - -- P DECOMP OBTAIN PARAMETERS. - PICK UP WEIGHT 105K, SLACK OFF WEIGHT 108K, 9 BPM AT 1550 PSI. -PUMPS OFF TAGGED AT 3498 FEET. • -PUMPS ON WASH DOWN TO 3530 FEET. TOOK 5K AT 3508 FEET. -PICK UP AND SLACK OFF, NOTICED SAME THING. - WORKED EVERY 10 FEET TO ALLOW SAND TO BE PUMPED UP HOLE. 01:30 - 02:30 1.00 FISH P DECOMP PUMP HIGH VIS SWEEP FULL CIRCULATION AT 10 BPM AT 1870 PSI. -WORK PIPE 30 FEET AND STAYING 15 FEET OFF THE SAND. 02:30 - 03:00 0.50 FISH P DECOMP FLOWCHECK WELL-GOOD - PJSM ON TRIPPING OUT OF HOLE 03:00 - 04:00 1.00 FISH P DECOMP POOH FROM 3530' TO 235' 04:00 - 05:00 1.00 FISH P DECOMP FLOWCHECK FOR NON - SHEARABLES ACROSS STACK -POOH TO SURFACE -BREAK DOWN BOOT BASKETS -FOUND 2 PIECES OF 3" LONG GRAPPLES IN BOOT BASKET. TOTAL OF 24" OF SPIRAL GRAPPLE FOUND. 05:00 - 07:00 2.00 FISH P DECOMP BREAK DOWN AND LAY DOWN BHA - RUN IN HOLE WITH 4 3/4" DRILL COLLARS AND COME OUT LAYING DOWN. 07:00 - 08:30 1.50 FISH P DECOMP PJSM, RUN IN THE HOLE WITH 7" RBP RETRIEVAL TOOL ON 4" DRILL PIPE TO 3528'. -UPWT. 103K /DOWN WT. 105K 08:30 - 09:00 0.50 FISH P DECOMP WASH DOWN TO 3544'. PUMP A 30 BBL HIGH VIS SWEEP SURFACE TO SURFACE AT 9 BPM WITH 390 PSI. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING ©60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 09:00 - 10:00 1.00 FISH P DECOMP SET DOWN 10K AND TURN TO THE RIGHT 1 TURN. OVERPULL 15K AND SLACK BACK OFF TO NEUTRAL WT. SET DOWN 15K AGAIN AND PICK UP TO UNSEAT THE RBP. MONITOR THE WELL FOR 15 MINUTES. STATIC. RACK BACK 2 STANDS TO ENSURE 7" RBP IS INTO THE 9 -5/8" CASING. NO DRAG SEEN WHEN PULLING THROUGH THE 7" SCOOP GUIDE. 10:00 - 13:00 3.00 FISH P DECOMP PJSM, PULL OUT OF THE HOLE WITH THE 7" RBP LAYING DOWN DRILLPIPE FROM 3433'. 13:00 - 14:00 1.00 FISH P DECOMP RUN IN THE HOLE FROM THE DERRICK 30 STANDS OF DRILLPIPE TO 2900'. 14:00 - 17:30 3.50 FISH P DECOMP PULL OUT OF THE HOLE LAYING DOWN THE DRILLPIPE FROM 2900'. 17:30 - 19:00 1.50 FISH P DECOMP SLIP AND CUT DRILL LINE 19:00 - 19:30 0.50 FISH P DECOMP SERVICE RIG 19:30 - 21:30 2.00 FISH P DECOMP LAY DOWN REMAINING DRILL PIPE. 21:30 - 22:30 1.00 FISH - P DECOMP PULL WEAR RING, DRAIN STACK , DUMMY RUN WITH LANDING JOINT AND TUBING HANGER 22:30 - 00:00 1.50 RUNCOM P RUNCMP MOBILIZE 4.5 TUBING EQUIPMENT TO RIG FLOOR - CHANGE OUT BAILS -RIG UP TO RUN 4.5 12.6 # 13CR -85 VAM TOP WITH 7 "X 4.5 HES "TNT" 13 CR PACKER AND TAIL PIPE ASSMBLY 11/17/2012 00:00 - 02:00 2.00 RUNCOM P RUNCMP CONTINUE TO MOBILIZE TUBING HANDLING EQUIPMENT TO RIG FLOOR. Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E20BRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.961 "1 Long: 0148 °40'06.017'W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 02:00 - 20:00 18.00 RUNCOM P RUNCMP RUN IN HOLE WITH 4.5 12.6# 13 CR -85 VAM TOP TUBING AS FOLLOWS: 7" X 4.5" 9CR TC-II OVERSHOT 4.5 ", 12.6#, 13CR -85 TC-II PIN X VAM TOP BOX PUP JT. 1 JT. 4.5 ", 12.6#, 13CR -85 VAM TOP TUBING(BAKER LOKED) 4.5 ", 1.2.6#, 13CR -85 TC -II BOX X VAM TOP PIN PUP JT. 4.5" HES 'X' NIPPLE: 3.813" ID W /RHC -M PLUG 4.5", 12.6#, 13CR -85 VAM TOP BOX X TC -II PIN PUP JT. 4.5", 12.6#, 13CR-85 VAM TOP PUP 4.5" X 7" HES TNT PACKER 4.5 ", 12.6#, 13CR -85VAM TOP PUP 4.5 ", 12.6#, 13CR -85 TC-II BOX X VAM TOP PIN PUP JT. 4.5" HES 'X' NIPPLE: 3.813" ID 4,F, 12.6#,13CR -85 VAM TOP BOX X TC -II PIN PUP JT. 59 JTS (# 1 -59) 4.5 ", 12.6#, 13CR -85 VAM TOP - TUBING 4.5 ", 12.6#, 13CR -85 TC-II BOX X VAM TOP PIN PUP JT. GLM #1 -4.5" X 1" KBG-2 W/ DUMMY- SBK -2C LATCH 4.5 ", 12.6#, 13CR -85 VAM TOP BOX X TC-II PIN PUP JT. 69 JTS (# 60 -128) 4.5 ", 12.6#, 13CR -85 VAM TOP TUBING 4.5 ", 12.6#, 13CR -85 TC-II BOX X VAM TOP PIN PUP JT. GLM #2 -4.5" X 1" KBG-2 W/ SHEAR -BEK LATCH 4.5 ", 12.6#, 13CR -85 VAM TOP BOX X TC-II PIN PUP JT. 36 JTS (# 129 -164) 4.5 ", 12.6 #, 13CR -85 VAM TOP TUBING 4.5 ", 12.6#, 13CR -85 TC -II BOX X VAM TOP PIN PUP JT. 4.5" HES 'X' NIPPLE: 3.813" ID #4 4.5 ", 12.6#, 13CR -85 VAM TOP BOX X TC-II PIN PUP JT. 49 JTS (# 165 -213) 4.5 ", 12.6 #,13CR -85 VAM TOP TUBING 2 JTS 4.5 ", 12.6 #, 13CR -85 VAM TOP PUP (9.82' & 5.81') 1 JT. ( #214) 4.5 ", 12.6#, 13CR -85 VAM TOP TUBING 4.5 ", TC-II X VAM TOP PIN X PIN CROSSOVER FMC TUBING HANGER W/ 4 -1/2" TC -II LIFTING THREADS DOYON 14 RT = 28.94 FT (FINAL TALLY AFTER SPACE -OUT) - ALL CONNECTIONS BELOW THE PACKER UTILIZED BAKERLOKAND ALL OTHER CONNECTIONS UTILIZED JET LUBE SEAL GUARD. MAKE UP TORQUE 4440 FT /LBS. Printed 12/3/2012 11:00:11AM 1 �rz Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.9611 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING ©60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:00 - 00:00 4.00 RUNCOM P RUNCMP TAGGED FIRST SHEAR PIN AT 9165' - SHEARED AT 15K UNDER SLACKOFF WT (135K - 15K =120K) - TAGGED SECOND SHEAR PIN AT 9173 - SHEARED AT 15K -SLACK OFF TO 9178' (NO -GO SHOULD HAVE BEEN AT 9175') WITHOUT TAKING ANY WEIGHT -PICK UP AND BROKE OVER TO NORMAL PICKUP WEIGHT (154K) - SLACK OFF TO 9181'. SAW 6 -7K WEIGHT LOSS THEN IT CAME BACK. -CALL TOWN FOR DIRECTION. -SLACK OFF TO 9182' WITH 15K. PICKED BACK UP 4K AND BROKE OVER TO NORMAL PICK UP WEIGHT. -CALLED TOWN AND GOT APPROVAL TO SPACE OUT AND PREPARE FOR WIRELINE GAUGE RUN! - SPACED OUT AND LANDED LANDING HANGER WITH 130K IN SLIPS. RUN IN LOCKDOWN SCREWS. -LANDED OUT AT 9174.18 -ESTIMATED PUSHING DOWN TUBING STUMP FROM 9161' TO 9167' - PULLED LANDING JOINT IN PREPARATION FOR WIRELINE RUNS. * *NOTIFIED AOGCC VIA EMAIL @ 22:56 WITH INTENT TO TEST BOP'S ON 11/17/2012 * ** 11/18/2012 00:00 - 02:30 2.50 RUNCOM P ® RUNCMP CLEAR RIG FLOOR OF CASING TOOLS FOR UPCOMING WIRELINE OPERATIONS 02:30 - 03:00 0.50 RUNCOM P RUNCMP INSTALL DUTCH RISER 03:00 - 04:00 1.00 RUNCOM N RUNCMP WAIT ON WIRELINE FOR ORIENTATION 04:00 - 09:00 5.00 RUNCOM N RUNCMP RIG UP WIRELINE - PICK UP WIRELINE LUBRICATOR AND TOOLS TO RIG FLOOR THRU BEAVER SLIDE -SPOT WIRELINE TRUCK AND STRING UP -NEW WIRELINE CREW CHANGEOUT AND NEW PERSONNEL ORIENTATION * *UPDATE AOGCC (CHUCK SHEAVE) OF STATUS VIA PHONE .' 07:15 AM 09:00 - 11:30 2.50 RUNCOM N RUNCMP PJSM WITH NEW WIRELINE CREW - MAKE UP TOOLS FOR RETRIEVAL RUN -MAKE UP WIRELINE BOP STACK WITH LUBRICATOR ON TOP WITH STUFFING BOX 11:30 - 13:30 2.00 RUNCOM N RUNCMP RUN IN HOLE WITH GR RUNNING TOOL - LATCH RHC SLEEVE AND PULL TO RIG FLOOR * **TABLETOP EVACUATION DRILL FOR CAMP 13:30 - 15:30 2.00 RUNCOM N RUNCMP LAY DOWN RHC SLEEVE AND GR RUNNING TOOL -MAKE UP AND PICK UP 3.70" BY 20' DRIFT BARS Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.9611 Long: 0148°40'06.017'W Active Datum: ORIG KELLY BUSHING ©60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 15:30 - 20:00 4.50 RUNCOM N RUNCMP RUN IN HOLE WITH 3.70" BY 20' DRFT BARS TO 9669' (WIRELINE MEASUREMENT) - TAGGED CAST IRON BRIDGE PLUG AT 9669' - TIGHT SPOTS AT 9174' AND 9260' - WORKED THRU BOTH TIGHT SPOTS UNTIL ABLE TO GO IN AND OUT WITHOUT ISSUE. -PULL OUT OF HOLE. * * *UPDATED CHUCK SCHEAVE VIA EMAIL © 16:54 OF INTENT TO TEST BOP'S TONIGHT* ** ** *CHUCK SCHEAVE CALLED TO WAIVE WITNESS OF BOP TESTING @ 18:00 11/18/2012"** 20:00 - 20:30 0.50 RUNCOM N RUNCMP RIG DOWN WIRELINE ,FOR BOP TESTING 20:30 - 22:00 1.50 BOPSUR P RUNCMP SET TWO WAY CHECK -TEST TWO WAY CHECK TO 250 LO /3500 HIGH FROM TOP FOR 5 MIN EACH 22:00 - 00:00 2.00 BOPSUR P RUNCMP PJSM ON TESTING BOP'S -RIG UP AND START TESTING BOP TO 250 PSI L0/3500 PSI HIGH FOR 5 MINUTES EACH - TESTING USING 4.5" TEST JOINT 11/19/2012 00:00 - 06:00 6.00 BOPSUR P RUNCMP TESTED ALL BOP'S AND CHOKE MANIFOLD TO 250 PSI LO /3500 PSI HI FOR 5 MINUTES EACH. PERFORMED DRAW -DOWN ON KOOMEY, DRAW -DOWN ON CHOKES. - TESTED ALL ON 4.5" TEST JOINT 06:00 - 08:00 2.00 BOPSUR N RUNCMP PICK UP DUTCH SYSTEM. -RIG UP , TEST LUBRICATOR TO PULL TWO WAY CHECK. 250 LOW/ 3500 HIGH FOR FIVE CHARTED MINUTES - PULL TWC AND LAY DOWN LUBRICATOR AND EXTENSIONS 08:00 - 10:00 2.00 BOPSUR N RUNCMP PJSM WITH SLB WIRE LINE CREW -RIG UP LUBRICATOR AND SLB BOP SYSTEM FOR LUBRICATOR 10:00 - 14:00 4.00 BOPSUR N RUNCMP RUN IN HOLE WITH SLB MEMORY TOOL 14:00 - 16:00 2.00 BOPSUR N RUNCMP RIG DOWN SLB MEMORY TOOL AND RIG UP TO RUN RHC TOOL 16:00 - 18:00 2.00 BOPSUR N RUNCMP RUN IN THE HOLE WITH RHC SLEEVE. -SET SLEEVE AT 9088' AND PULL OUT OF HOLE 18:00 - 20:00 2.00 BOPSUR N RUNCMP RIG DOWN SLB WIRE, CLEAR RIG FLOOR OF TOOLS 20:00 - 20:30 0.50 BOPSUR P RUNCMP PJSM- REVERSE CIRCULATE THROUGH IA -438 BBL AT 4 BPM, PSI = 720. - CIRCULATED 142 BBLS SEAWATER, FOLLOWED BY 101 BBLS INHIBITED SEAWATER, FOLLOWED BY 198 BBLS SEAWATER -ALL THRU PACKER. THIS SPOTTED THE INHIBITED SEAWATER BETWEEN THE PACKER (4.5" X 7" AND THE GAS LIFT MANDREL AT 3643' Printed 12/3/2012 11:00:11AM 3� Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °20'19.9611 Long: 0148 °40'06.017 "W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:30 - 00:00 3.50 BOPSUR P RUNCMP DROP BALL AND ROD, SET PACKER - PACKER SET AT 1900 PSI. - PRESSURE UP TUBING TO 3690 PSI AND TEST TUBING, 15 MINUTE HOLE BLED DOWN TO 3600 PSI, 30 MINUTE HOLD BLED DOWN TO 3560 PSI. BLEED TUBING DOWN TO 1500 PSI IN PREPARATION FOR IA TEST. -PRESSURE IA UP TO 3750 (TUBING PRESSURED UP TO 2000 PSI) 11/20/2012 00:00 - 01:00 1.00 BOPSUR P RUNCMP WHILE PREFORMING IA TEST TUBING PRESSURE BLED DOWN AND SHEARED DCK VALVE. -PUMPED DOWN TUBING 1 BBL TO VERIFY DCR VALVE SHEARED. -BLEW DOWN PUMP LINES 01:00 - 04:00 3.00 BOPSUR N RUNCMP CLEAR RIG FLOOR OF TUBING TOOLS, CROSS OVERS, BALES, SLIPS AND ELEVATORS - INSTALLED DUTCH SYSTEM FOR WIRELINE 04:00 - 06:00 2.00 BOPSUR N RUNCMP PJSM WITH WIRELINE - RIGGING UP WIRELINE -LINE UP ON TUBING SIDE, SENSOR ON ANNULUS SIDE, PURGE LINES THRU KILL AND CHOKE. - BLEED KOOMEY DOWN AND SHUT BLIND SHEAR RAMS - PRESSURE UP TO 3500 PSI AND HOLD FOR 30 MINUTES 06:00 - 07:30 1.50 BOPSUR P RUNCMP 30 MINUTES PRESSURE TEST GOOD -BLEED OFF PRESSURE BOTH ANNULUS AND TUBING 07:30 - 08:30 1.00 BOPSUR P RUNCMP EMPTY BOP STACK CH FI - INSTALL TWO WAY CHECK CK VALVE WITH DRY ROD 08:30 - 09:30 1.00 BOPSUR P RUNCMP RIG UP AND TEST TWO WAY CHECK 1000 PSI FROM BELOW FOR 5 CHARTED MINUTES. TEST GOOD -TEST TWC FROM ABOVE 3500 PSI FOR 5 CHARTED MINUTES. TEST GOOD -BLOW DOWN CHOKE MANIFOLD, CHOKE AND KILL LINE 09:30 - 12:00 2.50 BOPSUR P RUNCMP NIPPLE DOWN BOP STACK - REMOVE RISER FLOW LINE AND CHOKE LINE -BREAK ADAPTER FLANGE AND STAND BACK, PICK UP TUBING ADAPTER FLANGE 12:00 - 13:30 1.50 BOPSUR P RUNCMP NIPPLE UP TUBING ADAPTER AND TREE 13:30 - 14:30 1.00 BOPSUR P -_ RUNCMP TEST TUBING ADAPTER 5000 PSI FOR 30 CHARTED MINUTES 14:30 - 15:30 1.00 BOPSUR P -_ RUNCMP TEST TREE 250 PSI LOW AND 5000 PSI HIGH FOR 5 CHARTED MINUTES EACH 15:30 - 17:00 1.50 BOPSUR P ■- RUNCMP PICK LPSHO TEST P LOW AND 35050 0 PSI HIGH FOR R 5 CHARTED MINUTES EACH 17:00 - 18:00 1.00 BOPSUR P -_ RUNCMP PULL TWO WAY CHECK VALVE AND LAY DOWN 18:00 - 19:00 1.00 BOPSUR P RUNCMP RIG UP TO FREEZE PROTECT Printed 12/3/2012 11:00:11AM Common Well Name: E -20 AFE No Event Type: WORKOVER (WO) Start Date: 10/29/2012 End Date: 11/21/2012 X3- 01129- C:E2OBRWO (3,960,000.00 ) Project: Prudhoe Bay Site: PB E Pad Rig Name /No.: DOYON 14 Spud Date/Time: 11/27/1981 12:00:00AM Rig Release: Rig Contractor: DOYON DRILLING INC. UWI: / Lat: 070 °2019.961 "1 Long: 0148 °40'06.0171W Active Datum: ORIG KELLY BUSHING @60.50ft (above Mean Sea Level) Date From - To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 21:00 2.00 BOPSUR P RUNCMP PJSM WITH LITTLE RED HOT OIL SERVICES -RIG UP LITTLE RED HOT OIL SERVICES -TEST LRS LINES TO 3500 PSI FOR 5 CHARTED MINUTES 21:00 - 23:30 2.50 BOPSUR P RUNCMP PUMP 160 BBL OF 80 DEGREE DIESEL DOWN ANNULUS. 1 BPM AT 350 PSI 23:30 - 00:00 0.50 BOPSUR P RUNCMP U -TUBE FREEZE PROTECT 11/21/2012 00:00 - 01:30 1.50 BOPSUR P RUNCMP U -TUBE FREEZE PROTECTION 01:30 - 03:00 1.50 WHSUR P RUNCMP RIG DOWN LINES FROM TOP OF TREE -PICK UP BACK PRESSURE LUBRICATOR -TEST 250 LOW / 3500 HIGH FOR 5 CHARTED MINUTES EACH -SET BACK PRESSURE VALVE 03:00 - 04:00 1.00 WHSUR P RUNCMP RIG UP LITTLE RED SERVICES TO IA TO TEST BPV FROM BELOW. -TEST BACK PRESSURE VALVE AT 1000 PSI FROM BELOW FOR 10 MINUTES 04:00 - 06:00 2.00 WHSUR P RUNCMP SECURE TREE IN CELLAR - INSTALL ALL VALVES, FLANGES AND PRESSURE GAUGES ON TREE. - VERIFIED NO PRESSURE ON TREE -- -RIG DOWN FLOOR OF WATER AND STEAM LINES IN PREPARATION OF SKIDDING RIG FLOOR * *RELEASED RIG AT 06:00 AM ** - ** *SWITCH TO NGI-01 RWO REPORT AT 0600 11/21/2012"" Printed 12/3/2012 11:00:10AM ' V1ELLHEAD = 41 Canw n E-20/. RWO SAO NOTES: "''4 -1/2" CHROME TBG*** I ACTUATOR = OTIS KB. ELEV = 60.54' I I BF. ELEV = 32.01' GAS LFT MANDRELS Wfax Angle = 37 @ 4100' 9 -5/8" ES Cementer -I 2018' c ST MD ND DEV TYPE VLV LATCH PORT DATE Datum MD= 9800' 9 -5/8" Baker ECP H 2040' h � r., 1 3643 3610 24 KBG-2 Shear BEK 0 11/20/12 DatumTVD= 8800' SS 2 6542 6015 33 KBG-2 Dn,y SBK -2C 0 11/20/12 9 -5/8", 40 #, L -80, Hydril 563 -I 2064' 4 -1/2" HES X NIP, ID = 3.813 " 2128' I 13 -3/8" CSG, 72 #, L-80,113 = 12.347" —I 2699' _. _ _ -- I 3462' - 7" scoop guide Minimum ID = 3.725" @ 9261' ■ I ► I 3490' —I EST. TOP OFCEM3ff 4 -1/2" HES XN NIPPLE 1 1 y . 4 '1 • A 8607 I-1 7" FES FLOAT COLLAR w /3/8" ORFACE HOLE I 7" TEBACK/SCAB LNR, 26 #, L -80 8625' 8624' H7" BKR LOC & SEAL ASSY (3 SETS), ID = 6.17" I BTC-M, .0383 bpf, 13 = 6.276" 8625' 9-5/8" X 7" BKR ZXP LNR TOP FKR w / TIE$ACK SLV, D = 6.30" TOP OF WHIPSTOCK (10/02/04) 8767' 8642' — 9-5/8" X 7" BKR HMC LNR HGNR, D = 6.310" 9 -5/8" CSG, 47 #, L -80, ID = 8.681" H — 8767 I/ i 1 9024' I - 4 -1/2" HES X NIP, ID = 3.813" E I 9054' r 7" x 4 -1/2" HES TNT 13Cr Packer 1_ 9088' I 4 -1/2" HES X NIP, ID = 3.813" 4 -1/2 ", 12.6# 13Cr -85 VamTop -I 9145' I 1 I 9174' k- 7" x 4 -1/2" 9cr Unique overshot 1 9195' —14 -1/2" HESX NIP, D= 3.813" ■ Z 9216' H7" X 4-1/2" BKR S-3 PKR, D = 3.875" ' 9240' —14-1/2" HESX NIP, D = 3.813" 4 -1/2" TBG, 12.6 #, 13CR -80 —I 9273' I 9261' IH4 -1/2" HES XN NP, D = 3.725" TCII, .0152 bpf, ID = 3.958" PERFORATION SUNMARI' 9266' H 7" X 5" BKR ZXP LTP w /TIEBACK SLV , ID = 4.44" I REF LOG: MWD ON 10/14/04 9273' H4 -1/2" WLEG, ID = 3.958" ANGLE AT TOP PERF: 5 @ 9854' Note: Refer to Production DB for historical perf data 9279' H7" X 5" BKR FLDC LOCK LNR HGR, D = 4.44" SIZE SPF INTERVAL Opn /Sqz DATE \ 9289' I X4-1/2" XO, D= 3.958" I 2 -7/8" 6 9854 - 9874 O 06/11/05 2 -7/8" 6 9875 - 9925 O 03/14/05 2 -7/8" 6 9886 - 9896 0 01/02/05 2 -7/8" 6 9899 - 9909 O 12/21/04 2 -7/8" 6 9899 - 9935 0 11/26/04 4 -1/2" CIBP set at 9660' I I 7" LNR, 26#, L -80 BTGM, .0383 bpf, D = 6.276" --I 9425' I PBTD —I 9962' p.. e4 4 -1/2" LNR, 12.6#, L -80 IBT -M, —I 10050' .0152 bpf, D = 3.958" &■•.. ..t DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/17/81 ORIGINAL COMPLETION 12/27/07 SWC/TLH 4 -1/2" PX RUG (12/27 /07) WELL: E-20A 10/17/04 N2ES SIDETRACK (E 20A) 05/31/10 SEW /PJC PULL PX PLUG (05/30/10) PERMT No: "2041890 04/30/05 RVVLJPJC GLV GO 08/14 /11 M3N9PJC SET XX PLUG/ GLV C/O (8/12/11) AR No: 50- 029 - 20576 -01 06/11/05 /TLH PERF 08/29 /11 RCT/ PJC PULL XX/ SET XXN PLUG (8/24/11; SEC 6, T11 N, R14E 1743" FNL & 883' FE . 12/09 /05 TMNYTLH DRLG DRAFT CORRECTION 11/20/12 CWK Doyon 14 RWO 08/29/06 RDW/TLH WAIVER SFIY NOTE DELETED BP Exploration (Alaska) • • SMITE CIT ALLASEA SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMMISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 FAX (907) 276 -7542 John McMullen Engineering Team Leader Q �_ � 2q BP Exploration (Alaska), Inc. / P.O. Box 196612 Anchorage, AK 99519 -6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU E -20A Sundry Number: 312 -308 Dear Mr. McMullen: 1.. 1 ALIC U i ?O 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 Commission grants for good cause shown, a person affected by it may file with the Commission 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, Daniel T. Seamount, Jr. r -- Commissioner DATED this` day of August, 2012. Encl. ,D ECEIVED ' STATE OF ALASKA IO 42 ,O AL KA OIL AND GAS CONSERVATION COM ISSION AUG 0 7 2012 APPLICATION FOR SUNDRY APPROVAL AOCCC 20 AAC 25.280 1. Type of Request: ❑ Abandon ® Plug for Redrill • ❑ Perforate New Pool ❑ Repair Well ❑ Change Approved Program ❑ Suspend ❑ Plug Perforations ❑ Perforate ❑ Pull Tubing ❑ Time Extension ❑ Operations Shutdown ❑ Re -Enter Suspended Well ❑ Stimulate ❑ Alter Casing ❑ Other 2. Operator Name: 4. Current Well Class: 5. Permit To Drill Number BP Exploration (Alaska) Inc. ® Development ❑ Exploratory 204 - 189 • 3. Address: ❑ Service ❑ Stratigraphic 6. API Number: P.O. Box 196612, Anchorage, Alaska 99519 -6612 50 029 - 20576 01 - 00' 7. If perforating, closest approach in pool(s) opened by this operation to nearest 8. Well Name and Number: property line where ownership or landownership changes: PBU E -20A . Spacing Exception Required? ❑ Yes ® No 9. Property Designation: 10. Field / Pool(s): ADL 028304 • Prudhoe Bay Field / Prudhoe Bay Oil Pool ' 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 10050' ' 9109' - 9962' 9021' 9261' None Casing Length Size MD TVD Burst Collapse Structural Conductor 110' 20" x 30" 110' 110' Surface 2669' 13 -3/8" 2699' 2699' 4930 2670 Intermediate 8738' 9 -5/8" 8767' 7907' 6870 4760 Production Liner 9400' 7" 25' - 9425' 25' - 8493' 7240 5410 Liner 784' 4 -1/2" 9266' - 10050' 8349' - 9109' 8430 7500 Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubing Size: Tubing Grade: Tubing MD (ft): 10027' - 10135' 8902' - 8983' 4 12.6# 13Cr80 9273' Packers and SSSV Type: 7" x 4 Baker S - Packer Packers and SSSV 9216' / 8303' MD (ft) and TVD (ft): 12. Attachments: 13. Well Class after proposed work: ® Description Summary of Proposal ® BOP Sketch ❑ Detailed Operations Program ❑ Exploratory ® Development ❑ Service ❑ Str 14. Estimated Date for 15. Well Status after proposed work: Commencing Operations: September 15, 2012 ❑ Oil ❑ WINJ ❑ WDSPL ❑ Plugged 16. Verbal Approval: Date: ❑ Gas ❑ GINJ ❑ GSTOR ❑ Abandoned Commission Representative: ❑ WAG ❑ SPLUG ® Suspended • 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Matt Ross, 564 -5782 Printed Name John McMullen Title Engineering Team Leader F•p2 NN h( 01 6) Prepared By Name /Number. Signature Par /Ross Phone 564-4711 Date Joe Lastufka, me /Nu 564-4091 Commission Use Only Conditions of approval: Notify Commission so that a representative may witness r: v 3 2_ .�g , 3 . Sundry Numbe ❑ Plug Integrity (",BOP Test ❑ Mechanical Integrity Test ❑ Location Clearance * 3 S Oa t es-, 40e / „sr Other: LL� /� //� n c 1 � - A (Ttfh P t'--- fit/ �z' t�" , A ZS 0L�.C.) /'Y �r Subsequent Form Required: / d -Le a7 4 , APPROVED BY 2/ / vu Approved By: COMMISSIONER THE COMMISSION Date Form 1 i n Submit In Duplicate ° 01 QG 0 3 12012 � ,�, I p ;9 .,� � ..,x; 4, • • To: Alaska Oil & Gas Conservation Commission bp From: Matthew Ross CTD Engineer Date: August 6, 2012 Re: E -20A Sundry Approval Sundry approval is requested to plug the E -20A perforations as part of drilling the • E -20B coiled tubing sidetrack. History of E -20A. Well E -20A was drilled as a high angle rotary ST completed in Oct 2004 in the mid -field Graben of SE E -pad. Initial attempts to POP E -20A without PBGL were unsuccessful. Several sets of adperfs /reperfs were shot between Dec 2004 and June 2005 without much success. E -20A would not flow without PBGL support. Due to its low flow rates, it was shut in to allow its twin well E -28A to produce. In 2005, a debottlenecking project was completed at E -pad, which detwinned E -20 & E -28. E -20A was classified as Not Operable in Aug 2006 due to a surface casing leak. The SC leak was estimated at - 30' -34' based on fluid levels taken in Aug 2008 and Jan 2009. Unfortunately in Oct 2010, a starting head leak was also identified. E -20A remains shut -in and classified as Not Operable due to SH and SC leaks. It was secured with a TTP on 8/12/11. A RWO is planned to restore wellbore integrity and will be completed prior to the CST planned. The new completion will be a 4 -1/2" monobore. Reason for sidetrack. E -20A is no longer a competitive well due to high GOR uncompetitive water cut. The proposed sidetrack will access a target in Zone 1B. Proposed plan for E -20B is to drill a through tubing sidetrack with a Coiled Tubing Drilling rig on or around October 1 2012. The existing perforations will be isolated by a CIBP set for the RWO. The sidetrack, E -20B, will exit the existing 4 -1/2" liner and kick off in Zone 4 and land in Zone 1 B. This sidetrack will be completed with a 3 -1/4" liner in the production interval. The following describes the work planned and is submitted as an attachment to Form 10 -403. A schematic diagram of the proposed sidetrack is attached for reference. vrDe and w4 el rev °, /, � o F y es,.► P r f t d � eNcc ,�, �Do 100 did produce r Gt��fi 6" 40' // o"( reeovee fie') r pi A/0•1 it ofd cialellat,' of riA tkre e pool 7 • • Pre -Rig Work: (scheduled to begin September 15 2012) 1. F MIT -T 2,500 psi. MIT- IA to 3,000 psi, MIT -OA to 2,000 psi. e 2. S Drift for 4'/2" monobore whipstock to 9600' md. C1 U 3. E Set 4W monobore whipstock at 9,530' md. 4. E Mill XN profile at 9,261' and to 3.80 ". 5. V PT MV, SV, WV. Bleed wellhead pressures down to zero. 6. 0 Bleed production flow and GL lines down to zero and blind flange. 7. 0 Remove wellhouse, level pad. t Rig Work: (scheduled to begin October 1 2012) �1 1. MIRU and test BOPE to 250 psi low and 3,500 psi high. 2. Mill 3.80" single string window in 4 -1/2" 12.6# L -80 production liner from mechanical mnnnhnrP whipstnck at P 530' and and 10' of rathole. Swap the well to Power -Pro SF. 3. Drill build: 4.125" OH, 470' (25° /100 planned) with resistivity. 4. Drill lateral: 4.125" OH, 771' (12° /100 planned) with resistivity. 5. Run 3 -1/2" x 3 -1/4" L -80 liner leaving TOL at 9,490' md. ) 6. Pump primary cement leaving TOC at 9,490' md, 15 bbls of 15.8 ppg liner cmt planned. i1 7. Perform liner cleanout with mill, motor and MCNL /GR /CCL log. %1 / C9 8. Test liner lap to 2,400 psi. 9. Perforate - 100'. 10. Freeze protect well to 2200' TVD. 11. Set BPV. ND BOPE stack. Freeze protect tree and PT tree cap to 3500 psi. 12.RDMO Nordic Rig. Post -Rig Work: 1. Re- install wellhouse, flowline and pull BPV. 2. Set 4 -1/2" KB liner top packer. 3. Generic GLV's. Matthew Ross CTD Engineer 564 -5782 CC: Well File Sondra Stewman/ Joe Lastufka TREE= 4- 1/16" CNV • WELLHEAD = FMC - � O I�TP' x'41/7' (�-11AETBC� " I ACTUATOR= OTIS KB. ELEV = 60.54' BF. ELEV = 32.01' \ �� KOP = 3000' Max Angle 37 @ 4100' I 34' H 5-1/2" X 4-1/2" XO, ID = 3.958" I Datum MD = 9800' I 1 2112' - I4 -1/2" HES X NIP, ID = 3.813" Datum TV D = 8800' SS 13 -3/8" CSG, 72 #, L -80, ID = 12.347" I-1 2699' 1 , ■ GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE I , 4 3430 3416 19 KBG2 DMY BK 0 08/12/11 I 3 6181 5705 34 KBG2 DMY BK 0 04/30/05 2 7967 7214 29 KBG2 DMY BK 0 10/16/04 Minimum ID = 3.725" @ 9261 ; ; � � 1 9085 8185 26 KBG2 DMY BK 0 10/16/04 4-1/2" HES XN NIPPLE 0J ►�i A 14 ^4400' I—I EST. TOP OF CEMENT I 11 U 1 1 , ► , 8607' H 7" HES FLOAT COLLAR w /3/8" ORIFACE HOLE I �� , 8624' 1-17" BKR LOC & SEAL ASSY (3 SETS), ID = 6.17" I 7" TIEBACK /SCAB LNR, 26 #, L -80 8625' I 8625' I- 9 -5/8" X 7" BKR ZXP LNR TOP PKR BTGM, .0383 bpf, ID = 6.276" f4 I w / TIEBACK SLV, ID = 6.30" 8642' H 9 -5/8" X 7" BKR HMC LNR HGNR, ID = 6.310" 1 MILLOUT WINDOW (E -20A) 8767' - 8783' 1TOP OF WHIPSTOCK (10/02/04) H 8767' 9195' I- I4 -1/2" HES X NIP, ID = 3.813" I ,7."` 9216' 1-17" X 4-1/2" BKR S -3 PKR, ID = 3.875" 9240' 1-14-1/2" HES X NIP, ID = 3.813" I 19-5/8" EZSV (10/01/04) Ii 8810' ►.. � S J ► 9240' 4 -1/2" XX PLUG (08/12/11) !TBG STUB (09/30/04) H 8870' /•��/�/ \ I I I V��1��1 A\ � � 9261' I _14 -1/2" HES XN NIP, ID = 3.725" I 1 5 -1 /2" TBG, 17 #, L -80, ID = 4.892" I 8909' ► ∎•'• • * � • ► \I 9266' - 7" X 5" BKR ZKP LNR TOP PKR I TOP OF 7" LNR H 8959' r�� .t w /TIEBACK SLV, ID = 4.44" I 4-1/2" TBG, 12.6 #, L -80, ID = 3.958" I 9051' _ r r 1 9273' I-I -1/2" WLEG, ID = 3.958" I SAW \ 9279' 7" X 5" BKR FLEX- 9 -5/8" CSG, 47 #, L -80, ID = 8.681" 1-I 9458' 1/t4.4.4.4.4/t4.1 LOCK LNR HNGR, 17" LNR, 26 #, L -80, ID = 6.276" I-1 10262' 1 1 � � � � V 1 � 1 � .41 ID = 4.44" 9289' I- 5" X 4 -1/2" XO, PERFORATION SUMMARY = 3.99" 4 -1/2" TBG, 12.6 #, 13C11130 9273 I `; REF LOG: MWD ON 10/14/04 TCII, .0152 bpf, ID = 3.958" ` ANGLE AT TOP PERF: 5 @ 9854' • Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn /Sqz DATE 7" LNR, 26 #, L -80 BTGM, -I 9425' I ` 2 -7/8" 6 9854 - 9874 0 06/11/05 .0383 bpf, ID = 6.276" ` 2 -7/8" 6 9875 - 9925 0 03/14/05 ` 2 -7/8" 6 9886 - 9896 0 01/02/05 2 -7/8" 6 9899 - 9909 0 12/21/04 . ;,, 2 -7/8" 6 9899 - 9935 0 11/26/04 PBTD H 9962' I ; 14-1/2" LNR, 12.6 #, L -80 IBT -M, .0152 bpf, ID = 3.958" I-1 10050' I DATE REV BY COMMENTS ! DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/17/81 ORIGINAL COMPLETION I 12/27/07 SWC/TLH 4 -1/2" PX PLUG (12/27/07) WELL: E 20A 10/17/04 N2ES SIDETRACK (E -20A) 05/31/10 SEW /PJC PULL PX PLUG (05/30/10) PERMIT No: 2041890 04/30/05 RWL /PJC GLV C/O 08/14/11 MBM/PJC SET XX PLUG/ GLV C/O (8/12/11) API No: 50- 029- 20576 -01 06/11/05 /TLH PERF SEC 6, T11 N, R14E, 1743" FNL & 883' FEL 1 12/09/05 TMN/TLH DRLG DRAFT CORRECTION 08/29/06 RDW /TLH WAIVER SFTY NOTE DELETED BP Exploration (Alaska) . • • TREE= 4-1/16" CI C E 2 0 B I WaLHEAD= FMC � I SAFETY NOTES: '4 -1✓?" CHROME TAIL' K ELE1 = 60.54' ores KB. Proposed CTD Sidetrack B. l3EV BF. ELEV = 32.01' KOP = 3000' Max Angle = 37 ® 4100' Datum NO = 9800' 2112` 14.1/2" HES X NP, D = 3.813" I , Datum TVD= 8800' SS i 13 -3/8" CSG, 721, L-80,10 =12.347" I—{ 2699` GAS LIFT MANDRELS STJ MO TVD DEV TYPE VLV LATCH PORT DATE 4 3430 3416 19 KBG2 DONE BK 16 11/20/04 I, 3 6181 5 705 34 KBG2 DMY BK 0 04/30/05 2 7967 7214 29 KBG2 DMY BK 0 10/16/04 Minimum ID = 3.80" @ 9261' t • + � • ; 1 9085 8185 26 KBG2 DMY BK 0 10/16/04 41/2" HES XN NIPPLE (milled out) •1 !I • 41 /�1 —4400' HEST, TOP OF CENENT I t 1 )11 8607' H7" HES FLOAT COLLAR w /3/8" ORFACE HOLE I I i II 6. .1 I a 8625' I--- 7" TIEBACK/SCAB LNR 26$, L -80 ID BTC-M, .0383 bpf. D = 6 276" 8642' I- 19.5/8" X 7" BKR HMC LNR HGNR on 8.310" I MLLOUT WINDOW (5-20A) 8767' - 8783' \; 9195` 4.112" HES X NP, D = 3.613" I ;� 9216' --17" X 4 -1/2" BKR S-3 PKR, D = 3.875" I I 9-5/8" CSG, 471, L-80, D = 8.681" Sass' ' 9240' —14-1/2" HES X NP, D = 3.813" H '0'1•'11/ • • 1 ' % 11...............• A 17" LW, 261, L -80, D = 6.276" H 14262' 1 E -20 ` 9261' I- 14.5" XN NP, I I\ '/ I 9273' I— 4 -1/2" WLEG, D = 3.958" 4.1/2" TBG. 12.6$, 13CR80 PERFORATION SUMMARY TCB..0152 bpf, D = 3. 958" REF LOG: MVVD ON 10/14/04 ANGLEAT TOP PE: 5 ® 9854' 1 9279' 1— 7' X 5" BKR FLEX- ET Note: Refer to Production 08 I. historical pert data LOCK LNR HNGR. D=4.44" SIZE I SPF INTERVAL Opn/Sgz ' DATE 942v 7• i t+n Mk 2 -7/8" ( 6 9854 - 99 ' ac arc" 0)23 opt o = d 2 TSGR 9,467' MD 3.7" deployment sleeve / 4.5" KB LTP 4.5" Whipstock C'+ 9,530' MD MD TOL/TOC —9,490' 12° CIBP @ 9800' 3- 3/16" 6.2# L -80 liner • TD @ 10,771' MD " .'v�� PBTD 9962 � E -20A 4-112" LNR D - 12.65, L -80 BT -M, .0152 bpf, = 3.958" 10054' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/171x1 ORIGINAL COMPLETION 12/27/07 SWCITLH 4 -1/2" PX aUG (12/27/07) WELL: E -20B 10/17!04 N2ES SIDETRACK (E -20A) 05/31/10 SElY /PJC PULL PX PLUG (05/30/10) PERMIT No: Pending 04/30/05 RWL/PJC GLV C/O 08/30/11 EV CTD PROPOSED SIDETRACK API No: 50- 029 - 20576 -01 08/11/05 /TLH F'ERF SEC 6, 1 R14E, 1743" FNL & 883' Fla 12/09/05 TWIN/TIM DRLG DRAFT CORRECTION 08/29/08 RDW/TLH WAWERSFIY NOTE DELETED BP Exploration (Alaska) NORDIC - CALISTA RIG 1 CHOKE / REEL /CIRCULATION MANIFOLD DIAGRAM - V12 , • ■ ,T ., V14 �� 1 IL 7- 1116" 5000 psi BOP's ID = 7.06 " V16 V11 n'^ - - 171/16" 5000 Psi, RXA6 Transducers © illage � ' OR BQ 1 V2 II V1 V 16 = e 90* EGABBG Note typical BOP arrangement for 23/5" uea tubing drilling =EI 2 TOT P /S „_ I MO* 1 V17 n mi. I 7 1/16 psi, RXJ6 HCR II IC c 1 ./ K OK To Poor Boy Gas Buster :...: 21116 "5000 Pai, RX-24 I 9 5000 psI HCR ` I • ••w : 1 17:11 1.. . 2 -1 /16" 5000 Psi CHECK '�" xr ■ Manual Choke VALVE IOU : 7 1/16 Cameron FOV Gate I Valve x 5000 psi 1 a 8 MEOH /Diesel FP Line CoFlex Hose 1 w - 114 Turn Nalco 10WOG To Production Tree or Cross Over • . T CoFlex Hose CV11 0 o Bleed Off — Ali — Ilip=1 CV Cement Line In Ground LeveIT _ I - • f CV3 CV2 T Stand Pipe Manual Choke _ ---=—...= — — ■a • • ■a -- -- — — — Pressure Transducers CV9 Mo50n f III CV17 11 1 1 • ±i 1 0 cv, W /MI Ili CVB v [1 Tiaer • Tank ,•• Mud Pump O fl _ In From Baker + MP 1 8 MP 2 Choke : • —_ • CV14 — to Pits — Rig Floor Mud Pump F1 ,0 CV16 Reverse Ci - '. • —7— _ _ Cir CT while O0H �' ..� a. 0 _ __ ___.. O - • - • To Manifold CV15 1- Jun -2010 4 e.o.r.. Ci,x•rg.tinn lino / rT w.d. nnH CoFlex Hose • Page 1 of 1 Subject: FW: INTENT PLUG for RE -DRILL WELLS: Corrected From: Davies, Stephen F (DOA) Sent: Monday, February 08, 2010 10:52 AM To: Foerster, Catherine P (DOA); McMains, Stephen E (DOA); Schwartz, Guy L (DOA); Saltmarsh, Arthur C (DOA); Aubert, Winton G (DOA) Subject: RE: INTENT PLUG for RE -DRILL WELLS: Corrected Revised procedure with an additional step per Cathy's comment: INTENT PLUG for RE -DRILL WELLS (IPBRD) Type Work Code in RBDMS 1. When a Form 10 -403 is submitted requesting approval to plug a well for redrill, the initial reviewer (Art or Steve D.) will check to make sure that the "Plug for Redrill" box in the upper left corner of the 403 V form is checked. If the "Abandon" box is checked, we will cross that erroneous entry out and initial it on both copies of the Form 10 -403 (AOGCC's and operator's copies). 2. On the Form 10 -403 if "Abandon" is checked in Box 15 (Well Status after proposed work), Art or Steve D. will cross that erroneous entry out and initial it on both copies of the Form 10 -403 (AOGCC's and operator's copies). Instead, we will check the "Suspended" box. Guy and Winton will serve as quality control for steps 1 and 2. 3. When Steve McMains receives the Form 10 -403 with a check in the "Plug for Redrill" box, he will enter the existing code "IBPRD" into RBDMS. This code automatically generates a comment under the History tab stating "Intent: Plug for Redrill." 4. When Steve McMains receives any Form 10 -407, he will check the History tab in RBDMS for this comment. If he sees the "Intent: Plug for Redrill" code, and cannot find any evidence that a subsequent re -drill has been COMPLETED, he will assign a status of SUSPENDED to the well bore in RBDMS, no matter what status is listed on the 10 -407. Steve will also change the status on the 10 -407 form to SUSPENDED, and will date and initial his change. If Steve does not see the "Intent: Plug for Redrill" comment or code, he will enter the status listed on the Form 10 -407 into RBDMS. 5. When the Form 10 -407 for the redrill is received, Steve M. will change the original well's status from suspended to abandoned. 6. The first week of every January and July, Steve M. and Steve D. will check the "Well by Type Work Outstanding" user query in RBDMS to ensure that all of the Plug for Redrili wells have been handled properly. At this same time, Steve M. and Steve D. will also review the list of suspended wells for accuracy. Thanks, Steve D. file: //F:\ Daily_ Document_ Record \Procedures_ Instructions \FW INTENT PLUG for RE- DRI... 4/6/2012 ( • • swiE o[p A[LAs SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMMISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 FAX (907) 276 -7542 David Reem Engineering Team Leader a �„ BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519 -6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU E -20A Sundry Number: 312 -301 idDAUG 2 zoz Dear Mr. Reem: 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 Commission grants for good cause shown, a person affected by it may file with the Commission 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, 7€9 — Cathy ' . Foerster Chair DATED this day of August, 2012. Encl. 9 \b' �1/ STATE OF ALASKA Q Eli/ED M SSION g' f 1 1 / l AL� OIL AND GAS CONSERVATION CO 1,...c 2 2012 APPLICATION FOR SUNDRY APPROVAL AUG 0 20 AAC 25.280 AOGCC 1. Type of Request: ❑ Abandon ❑ Plug for Redrill ❑ Perforate New Pool Repair Well ` ❑ Change Approved Program ❑ Suspend ❑ Plug Perforations ❑ Perforate ® Pull Tubing ❑ Time Extension ❑ Operations Shutdown ❑ Re -Enter Suspended Well ❑ Stimulate : Alter Casing ❑ Other 2. Operator Name: 4. Current Well Class: 5. Permit To Drill Number BP Exploration (Alaska) Inc. • ® Development ❑ Exploratory 204 -189 4' 3. Address: ❑ Service ❑ Stratigraphic 6. API Number: P.O. Box 196612, Anchorage, Alaska 99519 -6612 50- 029 - 20576 -01-00 ' 7. If perforating, closest approach in pool(s) opened by this operation to nearest 8. Well Name and Number: property line where ownership or landownership changes: PBU E -20A Spacing Exception Required? ❑ Yes CI No 9. Property Designation: 10. Field / Pool(s): ADL 028304 • Prudhoe Bay Field / Prudhoe Bay Oil Pool . 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 10050' • 9109' i 9962' 9021' 9261' None Casing Length Size MD TVD Burst Collapse Structural Conductor 110' 20" x 30" 110' _ 110' Surface 2669' 13 -3/8" 2699' 2699' 4930 2670 Intermediate 8738' 9 -5/8" 8767' 7907' 6870 4760 Production Liner 9400' 7" 25' - 9425' 25' - 8493' 7240 5410 Liner 784' 4 -1/2" 9266' - 10050' 8349' - 9109' 8430 7500 Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubing Size: Tubing Grade: Tubing MD (ft): 10027' - 10135' 8902' - 8983' 4 -1/2 ", 12.6# 13Cr80 9273' Packers and SSSV Type: 7" x 4 -1/2" Baker S -3 Packer Packers and SSSV 9216' / 8303' MD (ft) and TVD (ft): 12. Attachments: 13. Well Class after proposed work: ® Description Summary of Proposal ❑ BOP Sketch ❑ Detailed Operations Program ❑ Exploratory ® Development ❑ Service ❑ Str 14. Estimated Date for 15. Well Status after proposed work: Commencing Operations: September 15, 2012 • ® Oil ❑ WINJ ❑ WDSPL ❑ Plugged 16. Verbal Approval: Date: ❑ Gas ❑ GINJ ❑ GSTOR ❑ Abandoned Commission Representative: ❑ WAG ❑ SPLUG ❑ Suspended 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Sean McLaughlin, 564 -4387 Printed Name David Reem Title Engineering Team Leader Prepared By Name /Number. Signature Phone 564 - 5743 Date � i2 Joe Lastufka, 564 -4091 Commission Use OnIy Conditions of approva� l: Notify Commission so that a representative may witness 1 Z _ � Sundry Number 1 ❑ Plug Integrity 'BOP Test ❑ Mechanical Integrity Test ❑ Location Clearance Other: re T /3 G p to 35 j9.5 i J. Subsequent Form Required: / C _ 4C APPROVED BY / Approved By: [ ��p M S �V LT. HE COMMISSION Date Foal:m +3at eris Hu A 201 �'L� O KI C KA r �� L Submit In Duplicate � iZ�LJ1V1.7 /�1 �7 1 L L� , ` ��111 YYY /// 111 / `(�\ . tf//41/ t--- , 7 b p • 0 Sundry Request for casing repair Date: 8/01/2012 Scope of Work: Pull 4 -1/2" 13Cr completion. Remove uncemented portion of the 7" tie -back. Cut and pull the 9 -5/8" surface casing and cut off the 13 -3/8" starting head. Run new 9 -5/8" casing and fully cement to surface with 9 -5/8" sliplock wellhead. Engineer: Sean McLaughlin MASP: 2412 psi Well Type: Producer Estimated Start date: September 15th Pre Rig Prep Work: S 1 Pull XX plug from 9261' S 2 Drift for 4 -1/2" CIBP and 4 -1/2" Jet Cutter S 3 Set 4 -1/2" CIBP at —9700' F 4 MIT -T to 3500 psi. E 5 Jet cut tubing @ 9,155'. Reference tubing tally 10/16/04. Cut desired to be 1/4 way down first full joint above packer. F 6 Circulate well through the cut with seawater and diesel freeze protect to 2000' MD. CMIT TxIA to 3500 psi to verify integrity for use as a barrier post -tbg cut. W 7 Check the tubing hanger lock down screws for free movement. Completely back out and check each lock down screw for breakage (check one at a time). PPPOT -T & IC. ✓ 8 Set BPV in the tubing hanger. 1° j b O 9 Remove the wellhouse & flow line. Level he pad as needed for the rig. O 10 Excavate the cellar as needed to get top of spray -in liner below the 13 -3/8" starting head. Line the cellar around the wellhead with impermeable, Rhino lined Herculite. Proposed RWO Procedure: 1. MIRU. ND Tree. NU and test BOPE to 250 psi low / 3500 psi high. Circulate out freeze protect fluid with seawater /fv h fy itacieG .Z"+'15j2tc` i r h +'� i h ct v`, t 2. Pull and lay down tubing to the jet cut 3. Scrape 7" casing and dress -off 4.5" tubing stub. 4. RU Wireline and run USIT log across 7" to locate TOC. 5. Set 7" RBP and 50' of sand —100' below logged TOC. PT RBP to 1000 psi. 6. Mechanically cut 7 Casing in 1 full joint above the TOC. Pull 7" casing through the stack. 7. Scrape 9 -5/8 ", dress -aff 7" casing stub 8. Install 7" scoop guide on 7" casing stub 9. Pull 7" RBP `D l 1600 p 5 ° 10. Set 9 -5/8" RBP and 50' of sand 1- P 11. Swap upper 7" fixed rams to 9 -5/8" fixed rams 12. Cut and pull 9 -5/8" casing based on 2004 USIT data 13. Cut off 13 -3/8" starting head 14. Scrape 13 -3/8" csg & dress 9 -5/8" csg stub. P‘ 15. Run and cement 9 -5/8" tie -back casing to surface �� ..Ls 16. Install Slip Lock WH on 9 -5/8" csg. Test same. --� 60P 17. Pull 9 -5/8" RBP 18. Run new 4.5" 13Cr completion. MIT -T & MIT -IA to 3500 psi. Post rig Work ✓ 1 Pull BPV S 2 Pull ball and Rod, Pull RHC seat, Install dummy GLV's • VVELLHEAD = 4-1/16" • E _2 O A SAW NOTES: '""''4-1/2" CHROME TBG*** I FMC ACTUATOR = OTIS KB. ELEV = 60.54' 1 ' I 1 34' H 5 -112" X 4-1/2" XO, D = 3.958" BF. ELEV = 32.01' KOP= 3000' 1 2112' H41/2" HES X NP, D = 3.813" Max Angle= 37@4100' Datum MD = 9800' Datum TVD = 8800' SS , — 4400' H SST S 1ST MD TVD DEV TYPE VLV LATCH PORT DATE 13 -3/8" CSG, 72#, L -80, D = 12.347° H 2699' I �� t 4 3430 3416 19 KBG2 DMY BK 0 08/12/11 • , • 3 6181 5705 34 KBG2 DMY BK 0 04/30/05 • • 2 7967 7214 29 KBG2 DMY BK 0 10/16/04 Minimum ID = 3.725" @ 9261' % 1 9085 8185 26 KBG2 DMY BK 0 10/16/04 4 -1/2" HES XN NIPPLE ,A ■ • • ' ► 8607' H 7" HES FLOAT COLLAR w /3/8" ORFACE HOLE 1 7" TIEBACK/SCAB LNR, 26#, L -80 — I 8625' I I 8624' H7" BKR LOC & SEAL ASSY (3 SETS), D = 6.17" 1 BTC-M, .0383 bpf, ID = 6.276" 8625' H 9 -5/8" X 7" BKR ZXP LNR TOP PKR w / TRACK SLV, D = 6.30" 1TOP OF HPSTOCK (10 /02/04) 1 8767' W 8642' H9 -5/8" X 7" BKR MAC LNR HGNR, D = 6.310" I 1 9-5/8" CSG, 47 #, 1-80, 13= 8.681" H — 8767 1 MLLOUT WINDOW (E -20A) 8767' - 8783' J 9195 / H41 /2" HIES X MP, D= 3.813" 1 / L 9216' H7" X 4-1/2" BKR S-3 PKR, D = 3.875" I 9240' H41/2" HES X NP, D = 3.813" I 4 -1/2" TBG, 12.6#, 13CR -80 --J 9273' 8 9261' H41/2" FES XN NP, D = 3.725" T( II .0152 bpf. D = 3.958" 9261' H4-1/2" XXN RUG (08/24/11) 1 PERFORATION SUMMARY 1 9266' 1—i 7" X 5" BKR ZXP LTP w /TIEBACK SLV, D = 4.44" I REF LOG: MWD ON 10/14/04 ANGLE AT TOP PERF: 5 @9854' ' ( 9273' H4-1/2" VVLEG, D = 3.958" I Note: Refer to Roduction DB for historical perf data \ 1 9279' H 7" X 5" BKR FLEX -LOCK LNR HGR ID = 4.44" SIZE SPF INTERVAL Opn /Sqz DATE ■ 9289' H5" X 4-1/2" XO, D = 3.958" I 2 -7/8" 6 9854 - 9874 0 06/11/05 , 2 -7/8" 6 9875 - 9925 0 03/14/05 ,---- C I (3 P ' '° '1" b 2 -7/8" 6 9886 - 9896 0 01/02/05 ' 2 -7/8" 6 9899 - 9909 0 12/21/04 2 -7/8" 6 9899 - 9935 0 11/26/04 1 1 17" LNR, 26#, L -80 BTC-M, .0383 bpf, D = 6.276" H 9425' ' PBTD H 9962' ....4 4 -1/2" LNR, 12.6#, 1-80 BT -M, — 10050' ►� v.* .0152 bpf, D = 3.958" . : ∎ • ∎ • ∎•. DATE REV BY COMVHJTS DATE REV BY COMvUJTS PRUDHOE BAY UNIT 12/17/81 ORIGINAL COMPLETION 12/27/07 SWC/TLH 4-1/2" PX PLUG (12/27/07) WRL: E 20A 10/17/04 1412ES SIDETRACK (E -20A) 05/31/10 SEW/PJC PULL PX PLUG (05/30/10) PERMIT No: `2 041890 04/30/05 RWL/PJC GLV C/O 08/14/11 M3M/PJC SET XX RUG/ GLV C/O (8/12/11) API No: 50- 029 - 20576 -01 06/11 /05 /TLH PERF 08/29/11 RCT/ PJC PULL XX/ SET XXN RUG (8/24/11) SEC 6, T11 N, R14E, 1743" FM. & 883' FEL 12/09 /05 TMJIfLH DI G DRAFT CORRECTION 08/29 /06 RDW/TLH WAIVERSFTY NOTE DELETED BP Exploration (Alaska) TREE= 4- 1/16" CM/ 1NELLHEAD = FMC E-20 A Casing Repair silly NOTES: ***4-1/2" CHROME TBG*** ACTUATOR= OTIS KB. ELEV = 60.54' 1' 9 -5/8" Slip -Lock Wellhead BF. ELEV = 32.01' KOP= 3000' 9 -5/8 ", 47 #, L -80, Hydril 563 Max Angle = 37 @ 4100' Datum MD= 9800' 9 -5/8" HES ES Cementer i........_ Datum TVD= 8800' SS 2 Baker ECP, inflates at 1600 psi 9 -5/8" tubing stub at 2,100' 9 -5/8" Baker Bowen Casing Patch 13 -3/8" CSG, 72 #, L -80, ID = 12.347" —I 2699' I - 4 9 -5/8" RBP ___ -- -7" scoop guide Minimum ID = 3.725" @ 9261' � � ' • ■ _4100' —I EST. TOP OF CEMENT 4-1/2" HES XN NIPPLE 0 ■• ■ N - 7 K to oe puiiea after running scoop guide I' 'I "" 8607' HT HES FLOAT COLLAR w /3/8" ORIFACE HOLE 7" TIEBACK/SCAB LNR, 26 #, L -80 - 8625' L 1 8624' —17" BKR LOC & SEAL ASSY (3 SETS), D = 6.17" BTGM, .0383 bpf, ID = 6.276" • , 8625' — 9 -5/8" X 7" BKR ZXP LNR TOP PKR w / TIEBACK SLV, ID = 6.30" TOP OF WHIPSTOCK (10/02/04) 8767• I / 4 8642' H9 X 7" BKR HMC LNR HGNR, D = 6.310" 9 -5/8" CSG, 47 #, L -80, ID = 8.681" H — 8767 4-1/2" jet cut tubing stub - 9,155' 9195' - -I4 -1/2" HES X NIP, ID = 3.813" F1 9216' HT X 4 -1/2" BKR S-3 PKR, ID = 3.875" 9240' — 14 - 1/2" HES X NIP, ID = 3.813" 4 -1/2" TBG, 12.6#, 13CR -80 — I 9273' 9261' — I4 -1/2" HES XN NIP, D = 3.725" TCII, .0152 bpf, ID = 3.958" PERFORATION SUMMARY 9266' — 17" X 5" BKR ZXP LW w /TIEBACK SLV, ID = 4.44" REF LOG: MWD ON 10/14/04 9273' — 14 - 1/2" WLEG, ID = 3.958" ANGLE AT TOP PERF: 5 @ 9854' Note: Refer to Production DB for historical pert data \I 9279' I - 17" X 5" BKR FLEX -LOCK LNR HGR, ID = 4.44" SIZE SPF INTERVAL Opn /Sqz DATE ■ 9289 —15" X 4 -1/2" XO, ID = 3.958" 2 -7/8" 6 9854 - 9874 0 06/11/05 2 -7/8" 6 9875 - 9925 O 03/14/05 2 -7/8" 6 9886 - 9896 O 01/02/05 2 -7/8" 6 9899 - 9909 0 12/21/04 2 -7/8" 6 9899 - 9935 O 11/26/04 ► - -- 4 -1/2" CIBP set at -9700' I - I 7" LNR, 26#, L - 80 BTC .0383 bpf, ID = 6.276" -I 9425' ' PBTD — I 9962' 4 -1/2" LNR • 12.6#, L -80 IBT -M, � �� 10050' •• • 4 .0152 bpf, ID = 3.958" • ■•■‘ DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/17/81 ORIGINAL COMPLETION 12/27/07 SWCTTLH 4 -1/2" PX PLUG (12/27/07) WELL: E 20A 10/17/04 N2 ES SIDETRACK (E -20A) 05/31/10 SEW /PJC PULL PX PLUG (05/30/10) PERMIT No: '2041890 04/30/05 RWL /PJC GLV GO 08/14/11 MBM/PJC SET XX PLUG/ GLV C/O (8/12/11) API No: 50- 029 - 20576 -01 06/11/05 /TLH PERF 08/29/11 RCT/ PJC PULL XX/ SET XXN PLUG (8/24/11) SEC 6, T11 N, R14E, 1743" FNL & 883' FEL 12/09/05 TMN/TLH DRLG DRAFT CORRECTION 08/29/06 RDW/TLH WAIVER SFTY NOTE DELETED BP Exploration (Alaska) TREE= 4-1/16" CM/ E 20 Proposed RWO "' WELLHEAD= FMC - S NOTES: 4- 1 /2 "CHROM ETBG'** ACTUATOR= OTIS KB. ELEV = 60.54' I BF. ELEV = 32.01' KOP= 3000' GAS LIFT MANDRELS Max Angle = 37 @ 4100' ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3430 3416 19 KBG2 DMY BK 0 08/12/11 Datum MD = 9800' 3 6181 5705 34 KBG2 DMY BK 0 04/30/05 Datum 1VD= 8800'SS 2 2 7967 7214 29 KBG2 DMY BK 0 10/16/04 9 -5/8 ", 47 #, L -80, Hydril 563 1 9085 8185 26 KBG2 DMY BK 0 10/16/04 4 -1/2" HES X NIP, ID = 3.813 " - 13-3/8" CSG, 72 #, L -80, D= 12.347" —1 2699' I / - 7" scoop guide Minimum ID = 3.725" @ 9261' 4' I vi —4400' H EST. TOP OF CEMENT 4 -1/2" HES XN NIPPLE 4 4 1 ►4, 4. � '4 7" TIEBACK/SCAB LNR, 26 #, L -80 —I 8625' 8607' I HES FLOAT COLLAR w /3/8" ORIFACE HOLE ai II I j 8624' H7" BKR LOC & SEAL ASSY (3 SETS), D = 6.17" BTC-M, .0383 bpf, ID = 6.276" II I i 8625' 9 -5/8" X 7" BKR ZXP LNR TOP PKR w /TIEBACK SLV, ID = 6.30" TOP OF WHIPSTOCK (10/02/04) 8 ?67' / 8642' H 9 - 5/8" X 7" BKR HMC LNR HGNR, D = 6.310" 9 -5/8" CSG, 47 #, L -80, ID = 8.681" H ^ - 8767 4 -1/2" HES X NIP, ID = 3.813" ►� ZC —7" x 4 -1/2" HES TNT 13Cr Packer 1 – 4 -1/2" HES X NIP, ID = 3.813" 4 -1/2 ", 12.6# 13Cr -85 VamTop \ 7" x 4 -1/2" 9cr Unique overshot at 9155' I 9195' H4-1/2" HES X NIP, ID = 3.813" Z 9216' H 7" X 4 -1/2" BKR S-3 PKR, ID = 3.875" ' 9240' — +4 -1/2" HES X NIP, ID = 3.813" 4 -1/2" TBG, 12.6#, 13CR -80 1 9273' ' 9261' H4 -1/2" HES XN NIP, U = 3.725" TCII, .0152 bpf, ID = 3.958" PERFORATION SUMMARY 9266' Hr X 5" BKR ZXP LTP w /TIEBACK SLV, ID = 4.44" REF LOG: MVVD ON 10/14/04 Illi 9273' — 14 - 1/2" WLEG, ID = 3.958" ANGLE AT TOP PERF: 5 @ 9854' Note: Refer to Production DB for historical pert data �\ 9279' Hr X 5" BKR FLEX -LOCK LNR HGR, ID = 4.44" SIZE SPF INTERVAL Opn /Sqz DATE ■ 9289' — 15" X 4 -1/2" XO, ID = 3.958" 2 -7/8" 6 9854 - 9874 O 06/11/05 2 -7/8" 6 9875 - 9925 O 03/14/05 2 -7/8" 6 9886 - 9896 O 01/02/05 2 -7/8" 6 9899 - 9909 0 12/21/04 2 -7/8" 6 9899 - 9935 O 11/26/04 -- 4 -1/2" CIBP set at –9700' I I 7" LNR, 26#, L -80 BTC-M, .0383 bpf, ID = 6.276" —I 9425' I PBTD 1 9962' J P -.4.4 - 4 -1/2" LNR, 12.6#, L -80 IBT -M, 10050' ►�� .0152 bpf, ID = 3.958" : ∎: ∎: � DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 12/17/81 ORIGINAL COMPLETION 12/27/07 SWC/TLH 4 -1/2" PX PLUG (12/27/07) WELL: E -20A 10/17/04 N2ES SIDETRACK (E -20A) 05/31/10 SEW /PJC PULL PX PLUG (05/30/10) PERMIT No: '041890 04/30/05 RWL /PJC GLV C/O 08/14/11 MBM/PJC SET XX PLUG/ GLV C/O (8/12/11) API No: 50- 029 - 20576 -01 06/11/05 /TLH PERF 08/29/11 RCT/ PJC PULL XX/ SET XXN PLUG (8/24/11) SEC 6, T11 N, R14E, 1743" FNL & 883' FEL 12/09/05 TMN/TLH DRLG DRAFT CORRECTION 08/29/06 RDW/TLH WAIVER SFTY NOTE DELETED BP Exploration (Alaska) • ~J Chris Stone Petroleum Engineer ~~ ~ ~~; BP Exploration (Alaska), Ini~:~-''` `~~~ ~ ($~ P.O. Box 196612 ~~ ~ ~ 1~ Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Oil Pool, PBU E-20A Sundry Number: 310-217 Dear Mr. Stone: 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 Commission grants for good cause shown, a person affected by it may file with the Commission 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. Sin 7 0 0 Orman ssioner DATED this ~ day of July, 2010. Encl. 1. Type of Request: Abandon ^ Suspend ^ Plug Perforation Perforate^ Pull Tubing ^ Time Extension ^ W~ Stimulate^ Alter Casing ^ Operation Shutdown ^ Re-enter Susp ^ . Other: SEAL TITE JOB - 2. Operator Name: 4. Current Well Class: 5. Permit to Drill Number: BP Exploration (Alaska), Inc. Development ^ , Exploratory ^ 204-1890 - 3. Address: P.O. Box 196612 Stratigraphic ^ Service ^ 6. API Number: Anchorage, AK 99519-6612 50-029-20576-01-00 - 7. If pertorating, closest approach in pool(s) opened by this operation to nearest 8. Well Name and Number: property line where ownership or landownership changes: ^ ^ PBU E-20A Spacing Exception Required? Yes No 9. Property Designation (Lease Number): 10. Field/Pool(s): ADLO-028304 ~ PRUDHOE BAY Field / PRUDHOE OIL Pool 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth ND (ft): Effective Depth MD (ft): Effective Depth ND (ft): Plugs (measured): Junk (measured): 10050 - 9108.84 , 9962 - 9021.07 ' NONE NONE Casing Length Size MD TVD Burst Collapse Structural Conductor 80 20" 91.5# H-40 31 111 31 111 1490 470 Surtace 2669 13-3/8" 72# L-80 30 2699 30 2698.9 7930 2670 Intermediate 8737 9-5/8" 47# L-80 30 8797 30 7907.1 6870 4760 Liner 600 7" 26# L-80 8625 9425 7784.6 8493.1 7240 5410 Liner 761 4-1/2" 12.6# L-80 9289 10050 8369.3 9108.8 8430 7500 TIEBACK LINER 8596 7" 26# L-80 29 8625 29 7784.6 7240 5410 Perforation Depth MD (ft): Perforation Depth ND (ft): Tubing Size: Tubing Grade: Tubing MD (ft): 9899 - 9915 8958.27 - 8974.22 5-1/2" 17# 13Cr80 29 32 9909 - 9915 8968.24 - 8974.22 4-1/2" 12.6# 13Cr80 32 9279 9915 - 9935 8974.22 - 8994.15 Packers and SSSV Tvoe: 7" Baker ZXP Mech Top Packer Packers and SSSV MD and ND (ftl: 8625 7785 4-1/2" Baker S-3 Perm Packer 9216 8303 5" Baker ZXP Top Packer 9273 8355 12. Attachments: Description Summary of Proposal ^/ 13. Well Class after proposed work: Detailed Operations Program ^ BOP Sketcl^ Exploratory ^ Development Q ~ Service ^ 14. Estimated Date for 15. Well Status after proposed work: Commencing Operations: 7/25/2010 Oil ^Q ~ Gas ^ WDSPL ^ Suspended ^ 16. Verbal Approval: Date WINJ ^ GINJ ^ WAG ^ Abandoned ^ Commission Representative: GSTOR ^ SPLUG ^ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact CHRIS STONE Printed Name CHRI ONE Title PE / Phone Date Signature ~~ h 564-5518 7/19/2010 Prepared by Gary Preble 564-4944 COMMISSION USE ONLY Sund Num t ti it l N tif i i th t C diti f C ber: ~ ~ ~ J ` a ry . a represen ve may w ness approva : y omm on so a a on ons o o ss Plug Integrity ^ BOP Test ^ Mechanical Integrity Test ^ Location Clearance ^ Other: Subsequent Form Required: / ~ry „_ ~ (~ APPROVED BY ISSIONER THE COMMISSION roved b A ~~ ~/.r Date: pp y: STATE OF ALASKA ALASI~IL AND GAS CONSERVATION COMMISSI~ ~-~~~'-- ~ ~ ~~~~ ~~ ~ APPLICATION FOR SUNDRY APPROVAL i~ Zo AAC 2s.2so asks Qr~ & Gay Cogs. CaIYNnission.~OC ~i~ Plug for Redr^ Perforate New Pool ^ Repair Well ^ oved Program ^ 1~) Fo-R63K~setT'f2b1b ~ W~R~~ U hT 11'7' ~ ~ L Submit in Duplicate 1 ~ 111 V ~/ 7 "~-l - /J . pp Date: July 15, 2010 To: From • • Jerry Bixby/Rob Liddelow, AK, D&C Wireline Operations Team Lead Clark Olsen/Tyler Norene, AK, D&C Well Services Team Lead Tiffany Quy, Projects Well Integrity Engineers Office: 659-5098, Harm #2418 Subject: E-20 Sealtite for SC repair AFE: APBEPDWL20 IOR: 200 Step Type Procedure 1 D MIT-OOA with diesel to confirm OOA x conductor LLR 2 W Pump Seal-Tite Gel-Seal into OOA Objective: Confirm OOA LLR to diagnose SC leak and mitigate the leak with Seal-Tite Gel-Seal. Well Stats: Well Status: SI and Not Operable due to a SC leak Last well test: 06/11/10 - 308 bopd, 3.8% WC, 6.6 mmscfd gas, 181 IOR Deviation: 37° @ 4700' MD Min ID: 3.725" 4.5" XN @ Est BHPS: from 2008 BHP map 3250 psi @ 8800 TVD SSSV: NO Last H2S: N/A - E-Pad is an H2S site Well Events Summary: E-20 is completed with 4.5" chrome Tbg in a 2004 rig sidetrack in which a 7" scab liner was tied back to surface to repair a PC leak, add a mechanical barrier, and waiver the well for a SC leak. The waiver was cancelled and the well reclassified as Not Operable 08/27/06. Since then there have been multiple attempts to diagnose the SC leak. The leak was strapped @ 30.5' on 01/13/09. The OOA-LLR was measured at 0.46 gpm @ 1000 psi on 06/06/10. Brinker Technology attempted to pump platelets down the OOA to repair, but they were unable to sustain an acceptable leak rate for their gel carrier fluid 06/13/10. Both aMIT-T & CMIT TxIA passed to 3000 psi 05/22/10 indicating integrity of the PC, packer, and Tbg. Although there has not been a caliper, it is expected that the 2004 chrome completion shows minimal corrosion. Well has a history of passing MIT-OOA's when SI, so it should be online to treat. > 09/03/04: MIT-OA Failed, crude from conductor to surface @ 2000 psi (current OOA pre-RST) > 10/16/04: Rig ST complete, MITIA Passed to 3500 psi, MITT passed to 3500 psi > 11/02/04: Waivered for SC Leak • • > 02/16/06: MIT-OOA w/N2 Passed to 500 psi when SI > 03/17/06: MITIA Passed to 3000 psi > 07/18/06: Slow bubbling from flutes > 08/27/06: Canceled waiver for SC leak > 04/26/08: CMIT-TxIA Passed to 3,000 psi; MIT-OA Passed to 2,000 psi > 07/31/08: MIT-OOA Failed w/ N2, bubbling in conductor & N2 response noted @ 300 psi (well SI and cold) > 08/26/08: OOA leak depth est @ 33' from OA FL > 08/28/08: PPPOT-T Passed, PPPOT-IC Passed, PPPOT-OC Passed to 3500 psi > 01/13/09: SC leak depth strapped @ 30'5" > 04/12/10: MIT-OOA Passed to 500 psi > 05/22/10: MIT-T Passed to 3000 psi, CMIT TxIA Passed to 3000 psi > 05/30/10: Pulled TTP @ 9240' > 06/02/01: Installed spary-in cellar liner > 06/06/10: MIT-OOA Failed to diesel, LLR .45 gpm @ 800 psi (well on line, pumped ~0.5 bbls in LLR test) > 06/13/10: Unable to pump Brinker due to low OOA infectivity. Brinker flow meter could not get a consistent LLR (varied from 0.032 - 0.26 gpm, pumped ~0.5 bbls during LLR test) Please contact Tiffany Quy/Mehreen Vazir for any questions or concerns. Office: 659-5098, Harm #2418 Cc: Well File AK, D&C Well Integrity Engineer Procedure: Equipment and location preperation: • Assure well is on-line and warm pre MIT-OOA • Spot a heater in the cellar with the well on line and warm at least 24 hrs prior to the LLR. • A spray-in liner is installed, but a sombrero will also be needed around the conductor when pumping on the OOA Downhole Diagnostics: Confirm OOA-LLR @ 1000 psi & 2000 psi on-line • Equipment required: Triplex pump, diesel source, bleed, heater (should be on location) • Requires a vac truck stung into the conductor during all pumping operations °~ 1. Pressure up OOA slowly w/diesel up to 1000 psi. Monitor cellar returns closely. Fluid returns in the conductor have been reported as low as 400 psi. 2. Maintain 1000 psi on OOA to confirm stable leak rate. Pump around either 1 bbls of fluid or for one hour (whichever is first) monitoring closely to record a LLR. 3. Pressure up slowly to 2000 psi. Obtain LLR with either one bbl diesel or one hour of pumping (whichever is first). If unable to pressure up to or maintain 2000 psi, record max LLR possible. 4. Attempt to dump OOAP when bleeding to retrieve any potential Arctic Pack. This was an AP well, but returns are unexpected with the lack of reporting history of AP and the SI status. Wellhead: Pump Gel-Seal into the OA per Seal-Tite recommendations • Equipment required: Triplex pump, diesel source, bleed, heater (should be on location),/ air compressor, Seal-Tite pump • Requires a vac truck stung into the conductor during all pumping operations • Mechanical Notes - 13-3/8"x9-5/8" OOA is 0.0581 bpf - 9-5/8" collapse is 4760 psi, 13-3/8" burst is 5380 psi - Volume to suspected leak site at ±31' is 1.8 bbls - Compression of annulus is 33.5 gallons/1000 psi, so each barrel injected should increase pressure to 1250 psi (from WSR of 6/9/2010) - Previously recorded leak rate of 0.45 gpm at 800 psi ~` 1. Ensure annulus is fluid packed with diesel 2. With OOA @ 0 psi, inject 1.5 bbls diesel into OOA. This should increase the pressure to ±1875 psi. 3. Monitor OOA pressure and conductor returns for 5 minutes. Slowly inject additional Gel-Seal to increase pressure to 2000 psi (Note -with leak at 31', sealant volume of 1.8 bbls is needed to reach the leak location) 4. Once sealant has reached the leak location, allow pressure to stabilize and cure for a minimum of 6 hours. 5. From stabilized pressure, slowly increase pressure to 2000 psi (required MIT pressure). Allow to cure at this point for 12 hours. 6. Bleed OOA pressure to 1000 psi (recover Gel-Seal to tanks) and allow to cure for 72 hours. 7. Monitor conductor during cure period to ensure no flow and that leak is cured. 8. Bleed OOA down to zero (recover Gel-Seal to tanks). ...', i -~ - ~ TREE= 41;16"CM1 WELLHEAD= FMC u ~ Ac-rLIATOR = -.- Ons KB. ELEv - ~ 80 54' ~BF. ElE~J = ~ a _ 32.G1' 4KOP- 3GGG' ~h1ax A~igle 37 [a~ 41Dfl' Datum MD 98G G' DatumTVl?~- y 8$~0'SS 13-3I8"' GSG, 72#, L-$Q, 6D =12. Minimum ID = 3.725" @ 9261' 4-112" HES XN NIPPLE E -2 ~A ~~ ~.1~z'E ~ 34" 5-112" X 4-1f2" XC}, D = 3.95$" 4 2112' 4-112" HE5 x NIP, D - 3.$13^ raS i ~rnnanr-3Ra ST MD TV D DEV TY Ff= V LV LATCH PORT DATE 4 3430 3416 19 KBG2 DOME BK 16 11120104 3 61$1 5705 34 KBG2 DMY BK 0 04/30105 2 1967 7214 29 KBG2 DMY BK 0 90116/04 1 9085 8985 26 KBG2 DMY BK 0 90116104 8607' H7" HES FLOAT COLLAR w 131$" QR~ACE HOLE 7" TIEBACK7SCAB LNR 26#, L-$(} BTC•M.:0383 bpf, ID = 6276" W 9-5+$" EZSV j10101104) K 8810. TBG STUB (09730104) 8870' 5-112" TBG, 17#, L-80, D = 4.$92" H $909' TOP OF T" LNR 8959' 4-101" TBG, 12.6#, L-80, ED = 3.958° 9051' 9-578" CSG, 47#, L-80, D = 8.681" 9458' 7" L NR, 26#, L-80, D = 6.276" 10262' PERFORATION SUMMARY REF LOG. MWD ON 10114104 ANGLE AT TOP PERF: 5 ~ 9$54' Nom: Refer to Production DB for h~tarical pert data SQE SPF iVTERVAL OprVSr~ DATE 2-718" 6 9854 -9874 O 06711105 2-718" 6 9875 -9925 O 03114105 2-718" 6 9886 -9896 O 01102105 2-718" 6 9899 - 9~9 O 12121104 2-718" 6 9899 -9935 O 11126704 8624' H7"" BKR LOC $~ SFAL ASSY (3 SETS), D =6.17" 8625' H9-51$"X7"BKRZXPLNRTOPPKR ~w 1 TEBACK SLV,. ID = 6.30" 8642' 9-518" X 7" BKR HMC LNR HGNR, D = 6:310" M~LOUT WY+lDOW (E-?flA) $767' - $7 9195' 4-112" HES JC NIP, D = 3.613" ... ~. .' 9216" 7" X 4112" BKR S-3 PKR, ED = 3.875" 9240' 4-112" HES X NAB, D = 3.$13" 9261' 4112" HES XN N~, D = 3.725"" 9266' 7" X 5" BKRZKP LNR TOP PKR .~-.~-.- w !TIEBACK SLV, 6D = 4.44" 9273' 4-112" WLEG, ID = 3.958" _ _9279' 7" X 5"BKR FLEX- LOt2C LNR HNGR, D =4.44" 9289' S" X 4112^ XO, ID = 3.99" 4112" TBG, 12.6#, 13CRSQ 9273' -- TCi, .0152 bpf, D ~ 3.958" 7" LNR„ 26#. L-80 BTG-ful 9425' .0383 bof. ID = 6276" 4-112" LNR, 12.6#. L-80 ~T M .0152 bpt, D = 3.958" 10050' DATE REV BY COMMHVTS DATE REV BY COMMENTS 121171$1 ORIGINAL COMPIETNDN 12(27107 SWC/TLH 4-112" PX PLUG (121277} 10/17104 N?E5 SIDETRACK (E•?8A) 05031110 SEWIPJC PULL PX PLUG (05130+10j 04130105 RWLIPJC GLV 010 06,`91105 ITCH FERF 12109105 TMNOfLH DF2LG DRAFT CORRECTION 08129106 RDW7TLH WAA/ERSFTY NDTEDELETED PRUDHC!E BAY UNIT WELL: E-20A PERMT nb: X041890 API No: 50-029-20576-01 SEC 6, T11 N; R94E„ 1743" FNl 8883' F~ BP Explaratron (Alaska) • • ~;: ,_ '~. ~•~ ~ MICROFILMED 03/01/2008 ..°- . - ~,~ ~r:- ~'- g~ DO NOT PLACE ANY NEW MATERIAL UNDER THIS PAGE F:~L,aserFichelCvrPgs_InsertslMicrofilm Marker.doc ~ ~ \) L.t.- DATA SUBMITTAL COMPLIANCE REPORT 11/27/2006 Permit to Drill 2041890 Well Name/No. PRUDHOE BAY UNIT E·20A Operator BP EXPLORATION (ALASKA) INC 5Ø~ 1> atÈ~ y API No. 50-029-20576-01-00 MD 10050 - TVD 9109 /" Completion Date 11/26/2004 f'" Completion Status 1-01L REQUIRED INFORMATION Mud Log No Current Status 1-01L UIC N Samples No Directiona~Yes ) DATA INFORMATION Types Electric or Other Logs Run: DIR 1 GR 1 PWD, DIR 1 GR 1 RES 1 NEU 1 DENS Well Log Information: Logl Electr Data Digital Dataset Type Med/Frmt Number Name ~ D Asc Directional Survey ~t Directional Survey ..R6 D Asc Directional Survey V<pt Directional Survey ~D Tap 12806 I nd uction/Resistivity ~t InÖu'(.ti01'tn.6!i!H'''¡I~ ¡,., l~ I/f.:,r.J~ ,tJJ.. - ¡pi C Lis 13635 I nd uction/Resistivity I I Well Cores/Samples Information: Name Interval Start Stop ADDITIONAL INFORMATION Well Cored? Y~ Chips Received? -V I N~ Analysis Received? ~ Comments: (data taken from Logs Portion of Master Well Data Maint Log Log Run Scale Media No Interval OHI . Start Stop CH Received Comments -_._~"~- 8700 10050 11/9/2004 IIFR 8700 10050 11/9/2004 IIFR 8700 10050 111912004 MWD 8700 10050 11/9/2004 MWD 8534 10002 Open 1 0/29/2004 MWD/GRlEWR4/CNP/SLDI ROP/PWD 8534 10002 Open 10/2912004 MWD/GRlEWR4/CNP/SLDI ROPIPWD/DSN 12806 8767 10050 Open 2/22/2006 ROP DGR EWR SLD CTN plus Graphics Sample Set Sent Received Number Comments . Daily History Received? ~ BN Formation Tops DATA SUBMITTAL COMPLIANCE REPORT 11/27/2006 Permitto Drill 2041890 Well Name/No. PRUDHOE BAY UNIT E-20A Operator BP EXPLORATION (ALASKA) INC MD 10050 TVD 9109 Completion Date 11/26/2004 Completion Status 1-01L Current Status 1-01L Compliance Reviewed By: Date: API No. 50-029-20576-01-00 UIC N . . . . WELL LOG TRANSMITTAL d{)4 - /8q To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Librarian 333 West ih Ave., Suite 100 Anchorage, Alaska 99501 February 17, 2006 J 3 Lc?£: RE: MWD Formation Evaluation Logs E-20A, The technical data listed below is being submitted herewith. Please address any problems or concerns to the attention of: Rob Kalish, Sperry Drilling Services, 6900 Arctic Blvd., Anchorage, AK 99518 907-273-3500 E-20A: LAS Data & Digital Log Images: 50-029-20576-01 1 CD Rom ~ ~~ì pf~Olo · STATE OF ALASKA I ALA~ Oil AND GAS CONSERVATION CO ISSION RECEIV~D REPORT OF SUNDRY WELL OPERATION· r.;:: .' 1. Operations Performed: Abandon 0 Alter CasingD Change Approved Program D 2. Operator Name: 3. Address: BP Exploration (Alaska), Inc. 4. Current Well Class: Development [!] ExploratoryD Stimulate mhska ail & Gas Con~t'r~~. . waiverD AHHYfoiãlénsTðMC/'.ISSlOn Re-enter suspend~1well D 5. Permit to Drill Number: 204-1890 6. API Number 50-029-20576-01-00 Repair WellO Pull TubingD Operation ShutdownD PluQ PerforationsD Perforate New PoolD Perforate ŒJ P.O. Box 196612 Anchorage, Ak 99519-6612 7. KB Elevation (ft): 59.11 8. Property Designation: ADL-028304 11. Present Well Condition Summary: StratigraphicD ServiceD 9. Well Name and Number: E-20A 10. Field/Pool(s): Prudhoe Bay Field / Prudhoe Oil Pool Total Depth measured 10050 feet true vertical 9108.8 feet Effective Depth measured 9962 feet true vertical 9021.1 feet Plugs (measured) None Junk (measured) None Casing Length Size CONDUCTOR 80 20" 91.5# H-40 SURFACE 2669 13-3/8" 72# L-80 INTERMEDIATE 8737 9-5/8" 47# L-80 LINER 600 7" 26# L-80 LINER 23 5-1/2" 17# L-80 LINER 761 4-1/2" 12.6# L-80 TIEBACK LINER 8596 7" 26# L-80 MD TVD Burst Collapse 31 111 31.0 111.0 1490 470 30 - 2699 30.0 - 2698.9 4930 2670 30 - 8767 30.0 - 7907.1 6870 4760 8625 - 9425 7784.6 - 8493.1 7240 5410 9266 - 9289 8348.5 - 8369.3 7740 6280 9289 - 10050 8369.3 - 9108.8 8430 7500 29 - 8625 29.0 - 7784.6 7240 5410 Perforation depth: Measured depth: 9854 - 9874, 9875 - 9925, 9925 - 9935 True vertical depth: 8913 - 8933, 8934 - 8984, 8984 - 8994 TubinQ ( size, Qrade, and measured depth): 5-1/2" 17# 13Cr80 4-1/2" 12.6# 13Cr80 @ 29 @ 32 32 9273 Packers & SSSV (type & measured depth): 7" Baker ZXP Mech Top Packer @ 8625 4-1/2" Baker S-3 Perm Packer @ 9216 5" Baker ZXP Top Packer @ 9273 4-1/2" X Nipple @ 2112 ~FEB 01 Z007 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: ,. '. .... .......:,. .' t" o }, .;~; ....~"...~.,1:~:,...... Prior to well operation: Subsequent to operation: Oil-Bbl SHUT-IN 207 Representative Dailv Averaae Production or Iniection Data Gas-Mef Water-Bbl Casing Pressure Tubing Pressure 13 7106 6 190 Copies of Logs and Surveys run _ Daily Report of Well Operations _ ~ 15. Well Class after proposed work: ExploratoryD 16. Well Status after proposed work: OilŒ] GasD Development ŒI ServiceD 14. Attachments: Signature WAG D GINJD WINJD WDSPLD Prepared by DeWayne R. Schnorr (907) 564-5174. Sundry Number or N/A if C.O. Exempt: N/A 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Printed Name Title Petroleum Engineer Phone 564-5174 Date 7/14/05 Form 10-404 Revised 4/2004 . . E-20A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 06/03/05 ***WELL SHUT-IN ON ARRIVAL*** DRIFT W/ 3.375" DUMMY GUN & 1.25" SAMPLE BAILER-TAG BTM @ 9916' SLM- RECOVERED SAMPLE OF FORMATION SAND *** WELL LEFT SHUT-IN*** 06/11/05 ADDED PERFORATIONS FROM 9854-9874' WITH 2 7/8" HSD POWEJETS AT 6SPF. PHASING FOR GUNS AT 60 DEG. FLUIDS PUMPED BBLS o ¡NO FLUIDS PUMPED TOTAL o Page 1 TREE = 6" crw WELLHEAD = FMC ACTUATOR = 0 KB. ELEV = 60.5' BF. ELEV = 28.5' KOP = 8800' t;:1~~~~_ngle = __.___2.!;~ @ ~~~~: Datum MD = 10134' Datum TVD = 9192' ,,20A As Built DRLG - a:rv NOTES: *** SURFACE CSG LEAK- NO GAS _IN WELLHOUSE OR CONTINUOUS LIQUID LEAK TO CELLAR - OPERATING LIMITS: MAX lAP = 2000 PSI; MAX OAP = 1000 PSI; MAX OOAP = 100 PSI (11/02/04 WAIVER) *** 113-3/8" CSG, 72#, L-80, ID = 12.347" Toe 2112' -14-112" X NIP, ID = 3.813" Minimum ID = 3.725" @ 4-112" OTIS XN NIPPLE GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 4 3430 3416 19 4.5" KBG-2 DOM BK 16 11/21/04 3 6181 5705 33 4.5" KBG-2 DMY BK 0 04/30/05 2 7967 7214 29 4.5" KBG-2 DMY BK 0 10/16/04 1 9085 8186 26 4.5" KBG-2 DMY BK 0 10/16/04 41/2" 12.6# 13Cr80 BTC-M (3.958" ID) 17" 26# L-80 Tieback Liner (6.276" ID) 1-1 8625' 8625' 1-17" Hanger /Iiner top packer Pre -rig Ge m e ni P&A plug H 98110' 1 I I I 1 1 I I 8767' 9195' 9216' 9240' 9261' 9273' 9273' 9425' H 9 5/8" Window I 1-141/2" X Nipple (3.813" ID) I 1-17" x 4 1/2" Baker S-3 Packer I 1-141/2" X Nipple (3.813" ID) I 1-141/2" XN Nipple (3.725" ID) I 1-141/2" WLEG I l-i 4 1/2" Hanger 1 liner top packer I H 7" 26# L-80 (6.276" ID) 0.383 bpf I I TOP OF 7" LNR I 9-5/8" CSG, 47#, L-80, ID = 8.681" I 8959' 9458' PERFORA TION SUMMARY REF LOG: MWD ON 10/14/04 ANGLE AT TOP PERF: 27 @ 9875' Note: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz DA TE 2-7/8" 6 9875 - 9925 0 03/14/05 2-7/8" 6 9886 - 9896 0 01/02/05 2-7/8" 6 9899 - 9909 0 12/21/04 2-7/8" 6 9909 - 9~5 0 12/26104 " Å'-i'-8 , 51- 913' () OC " oS I PBTD I 17" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 1-1 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BA Y UNrr 12/17/81 ORIGINAL COMPLETION 11/21/04 JPKlPJC GAS LIFT FORM WELL: E-20A 01/24/01 CONVERTED TO CANVAS 11/26/04 LDKlPJC PERF PERMrr No: )OO( )oo<x ;<oA!-/890 08/27/04 TJS Proposed Rig Sidetrack 12/21/04 LDK/PJC PERF API No: 50-029-20576-01 09/09/04 TJS Tieback Revision 01/02/05 JRA/PJC PERF SEC6, T11N, R14E 11/02/04 ATD/TLP WAIVER SAFETY NOTE 03/25/05 LDK/TLH PERF (03/14/05) & REF LOG 10/16/04 SIDETRACK 05/03/05 RWLlPJC C/O GLV (4/30) BP Exploration (Alaska) · STATE OF ALASKA . ALAS~OIL AND GAS CONSERVATION COISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed: Abandon 0 Alter CasingD Change Approved Program D EI\/ED '( 0 6 2005 Repair Well 0 Pull TubingD Operation Shutdown D Pluq PerforationsD Perforate New PoolD Perforate ŒJ StimulateD (!'il,ii¿i¡ðtke'f!] Commis$iOg WaiverD Time ~~~~b~~ Re-enter Suspended WellD 5. Permit to Drill Number: 204-1890 6. API Numbe 50-029-20576-01-00 Total Depth measured 10050 feet true vertical 9108.8 feet Effective Depth measured 9962 feet true vertical 9021.1 feet Casing Conductor Liner Liner Liner Production Surface Perforation depth: Measured depth: 9875 - 9886,9886 - 9896,9896 - 9899,9899 - 9909,9909 - 9915,9915 - 9925,9925 - 9935 2. Operator Name: 3. Address: BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, Ak 99519-6612 7. KB Elevation (ft): 59.11 8. Property Designation: ADL-028304 11. Present Well Condition Summary: Length 80 800 23 761 8596 2667 4. Current Well Class: Development ŒI ExploratoryD Stratigraphic 0 ServiceD 9. Well Name and Number: E-20A 10. Field/Pool(s): Prudhoe Bay Field / Prudhoe Oil Pool Plugs (measured) None Junk (measured) None Size 20" 91.5# H-40 7" 26# L-80 5-1/2" 17# L-80 4-1/2" 12.6# L-80 7" 26# L-80 13-3/8" 72# L-80 MD TVD Burst Collapse 31 111 31.0 111.0 1490 470 8625 - 9425 7784.6 - 8493.1 7240 5410 9266 - 9289 8348.5 - 8369.3 7740 6280 9289 - 10050 8369.3 - 9108.8 8430 7500 29 - 8625 29.0 - 7784.6 7240 5410 31 - 2698 31.0 - 2697.9 4930 2670 True vertical depth: 8934.35 - 8945.31, 8945.31 - 8955.28, 8955.28 - 8958.27, 8958.27 - 8968.24, 8968.24 - 8974.22, 8974.22·8984.19 8984.19 - 8994.15 Tubing ( size, grade, and measured depth): Packers & SSSV (type & measured depth): 5-112" 17# 13Cr80 4-1/2" 12.6# 13Cr80 @ 29 @ 32 32 9279 7" Baker ZXP Mech Top Packer 5" Baker ZXP Top Packer @ @ 8625 9273 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Garry Catron Printed Name Garry Catron .I~4 ~~ 13 Prior to well operation: Subsequent to operation: 14. Attachments: Copies of Logs and Surveys run _ Daily Report of Well Operations_ Signature Form 10-404 Revised 4/2004 Oil·Bbl 168 274 Representative Daily Averaae Production or Injection Data Gas'Mcf Water·Bbl Casing Pressure 7.1 2 400 9.5 5 400 Tubing Pressure 181 187 ~ 15. Well Class after proposed work: ExploratoryD 16. Well Status after proposed work: OilŒ GasD WAG 0 GINJD WINJD WDSPLD Prepared by Garry Catron (907) 564-4657. SUndry Number or N/A if C.O. Exempt: NIA Development ŒJ ServiceD Title Production Technical Assistant Phone Date 5/5/05 564-4657 , L RBDMS BFl MAY] 0 2005 '4 . . E-20A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 03/14/05 Perforate 9875'-9925' 6 SPF FLUIDS PUMPED BBLS No Fluids Pumped o ITOTAL Page 1 6"CrN FMC OTIS .20A As Built DRLG - TREE = 'WELLHEAD = ACTUATOR = KB. ELEV = .'----------,----. -----------'..... BF. ELEV = KOP= ~)(~ngle = Datum MO = Datum1VO= 28.5' 8800' . ~~1:~@~~~g: 10134' 9192' . [ 13-3/8" CSG, 72#, L-80, 10 = 12.34T' H 2699' ~ TOC H -4,400' I --1 Minimum ID = 3.725" @ 4-1/2" OTIS XN NIPPLE /41/2" 12.6# 13080 BTC-M (3.958" 10) 17" 26# L-80 Tieback Liner (6.276" 10) H 8625' ~ I I TOP OF 7" LNR H 8959' 9·5/8" CSG, 47#, L-80, 10 = 8.681" H 9458' '1 .. Pre-rig cement P&A plug H 9800' ÆRFORA TION SUMMA RY REF LOG: MWO ON 10114104 ANGLEATTOPÆRF: 27 @ 9875' Note: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz OA TE 2-718" 6 9875 - 9925 0 03114/05 2-7/8" 6 9886 - 9896 0 01102105 2·718" 6 9899·9909 0 12/21/04 2-7/8" 6 9909 - 9925 0 12126104 I PBTO H 10219' 17" LNR, 26#, L-80, .0383 bpf, 10 = 6.276" H 10262' ~ NOTES: *** SURFACE CSG LEAK- NO GAS IWJ WELLHOUSE OR CONTINUOUS LIQUID LEAK TO CELLAR· OPERATING LIMITS: MAX lAP = 2000 PSI; MAX OAP = 1000 PSI; MAX OOAP = 100 PSI (11/02/04 WAIVER) *** r 2112' H4-1/2" X NIP, 10 = 3.813" À GAS LIFT MANDRELS ST MO 1V0 OEV TYPE VLV LATCH PORT DATE 4 3430 3416 19 4.5" KBG-2 DOME. BK 16 11121104 3 6181 5705 33 4.5" KBG-2 OMY BK 0 04130105 2 7967 7214 29 4.5" KBG-2 OMY BK 0 10/16/04 1 9085 8186 26 4.5" KBG-2 OMY BK 0 10/16104 J it 8625' l-i T' Hanger /Iiner top packer / I I I I I I I H 9 5/8" Window I H4 1/2" X Nipple (3.813" 10) I HT' x 41/2" Baker S-3 Packer I H4 1/2" X Nipple (3.813" 10) 1 H4 1/2" XN Nipple (3.725" 10) I H4 112" WLEG I 1-i4 112" Hanger 1 liner top packer 1 H 7" 26# L-80 (6.276" 10) 0.383 bpf I 8767' 9195' 9216' 9240' 9261' 9273' 9273' 9425' I ~ I PBTD H 9962' I 14112" 12.6# (3.958" 10) 0.0152 bpf H 10050' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BA Y UNrr 12117181 ORIGINAL COMPLETION 11/21/04 JA<lPJC GAS LIFT FORM WELL: E-20A 01/24101 CONVERTED TO CANVAS 11126104 LOKlPJC ÆRF ÆRMrr No: XXX-XXXX 08/27/04 TJS Proposed Rig Sidetrack 12/21/04 LDKlPJC ÆRF API No: 50-029-20576-01 09/09104 TJS Tieback Revision 01102105 JRA/PJC ÆRF SEC6, T11N, R14E 11102104 A TO/TLP WAIVER SAFETY NOTE 03125/05 LOK/TLH ÆRF (03114105) & REF LOG 10/16/04 SIDETRACK 05103105 RWLlPJC ClO GLV (4130) BP Exploration (Alaska) E-20A (PTD #2041890) Classified as Problem Well . All, Well E-20A (PTD #2041890) has been found to have sustained casing pressure on the IA. The Tbg/IAlOAlOOA pressures were 2410/2020/10/0 on 04/20/05 when a TIFL was conducted and failed on IA repressurization. The plan forward for this well is as follows: 1. DHD: TIFL - FAILED on BUR 2. SL: Run DGL Vs in sta # 3 3. DHD: ReTIFL post DGLV A well bore schematic has been included for reference. «E-20A.ZI P» The well has been classified as a Problem well. Please call if you have any questions. Thank you, }lnna (j)u6e Well Integrity Coordinator GPB Wells Group Phone: (907) 659-5102 Pager: (907) 659-5100 x1154 Content-Description: E-20A.ZIP Content-Type: application/x -zip-compressed Content-Encoding: base64 1 of I 5/10/20058:50 AM ~OA As Built FROM DRLG - DRAFT TREE : WELLHEAD: ~,- ,,-- "~"""'- ACTUATOR: KB. ELEV =' SF. ELEV =' KOP= " ~~~~ ~- ,Ma~. Angle = .. Datum MD =' Datum TVD : 6" CNV FMC ---'otîS 60.5' 28.5' 8800' 31.5 @882Ô7 101347 9192' 113-3/8" CSG, 72#, L-80, ID: 12.347" H 2699' ¡-J I Toe H -4,400' IMinimum ID = 3.725" @ 4·1/2" OTIS XN NIPPLE 141/2" 12.6# 13Cr80 BTG-M (3.958" 10) 17" 26# L-BO Tieback Liner (6.276" ID) 1-1 8625' 1 TOP OF 7" LNR H 9-5/8" CSG, 47#, L-80, ID: 8.681" H 8959' f---. 9458' 1 .. 9800' 1 Pre-rig cement P&A plug 1-1 ÆRFORA TION SUMMARY REF LOG: MWD ON 10/14/04 ANGLE AT TOP ÆRF: 27 @ 9875' Note: Refer to A-oduction DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6 9875 - 9925 0 03/14105 2-718" 6 9886 - 9896 0 01/02105 2-7/8" 6 9899 - 9909 0 12121/04 2-718" 6 9909 - 9925 0 12126104 I PBTD 1-1 10219' 17" LNR, 26#, L-80, .0383 bpf, ID: 6.276" H 10262' DATE 12/17/81 01/24101 08/27104 09/09104 10/16104 11/02/04 REV BY COMMENTS ORIGINAL COMA-ETION CONVERTED TO CANVAS TJS A-oposed Rig Sidetrack TJS Tieback Revision 2es A TDfTLP WANER SAFBY NOTE DATE 10116/04 11/21104 11/26104 12/21104 01/02/05 0312S/OS SAANOTES: *** SURFACE CSG LEAK- NO GAS LE~ELLHOUSE OR CONTINUOUS LIQUID LEAK TO CELLAR - OPERATING LIMITS: MAX lAP = 2000 PSI; MAX OAP = 1000 PSI; MAX OOAP = 100 PSI (11/02/04 WAIVER) *** 1 1-14-1/2" X NIP, ID: 3.813" I 2112' --1 ~ GAS LIFT MANDRELS ST MD TVD DEV TYÆ VLV LATCH PORT DATE 4 3430 3416 19 4.S" KBG-2 DOME BK 16 11121/04 3 6181 5705 33 4.5" KBG-2 SO BK 20 11/21/04 2 7967 7214 29 4.5" KBG·2 DMY BK 0 10/16/04 1 908S 8186 26 4.S" KBG-2 DMY BK 0 10/16/04 ~ J I 8625' 1-17" Hanger I liner top packer I I I I I I I I 1-19 S/8" Window I 1-14112" X Nipple (3.813" ID) 1 1-17" x 4 1/2" Baker S-3 Packer I H4 1/2" X Nipple (3.813" ID) I H4 1/2" XN Nipple (3.725" ID) 1 1-141/2" WLEG I 9273' 1-141/2" Hanger /Iiner top packer I 9425' 1-17" 26# L-80 (6.276" ID) 0.383 bpf I 8767' 9195' 9216' 9240' 9261' 9273' PBTD H 9962' I 141/2" 12.6# (3.958" 10) 0.0152 bpf H 10050' REV BY COMMENTS SIDETRACK JA<lPJC GAS LIFT FORM LDKJPJC ÆRF LDKJPJC ÆRF JRA/PJC ÆRF LDKfTLH ÆRF (03114/05) & REF LOG PRUDHOE BA Y UNIT WELL: E-2OA ÆRMIT No: XXX-XXXX API No: 50-029-20576-01 SEC6, T11N, R14E BP Exploration (Alaska) .. STATE OF ALASKA . VEO ALASKA'" AND GAS CONSERVATION COM IONRECE\ WELL COMPLETION OR RECOMPLETION REPORT AND LOGOEC 1 5 2.004 . ß..r,a.s c.a"^~. commission 1a. Well Status: 181 Oil 0 Gas 0 Plugged 0 Abandoned 0 Suspended 0 WAG A.au.3IÞäll,t;I:!i'šš: 20AAC25.105 20AAC25.110 181 Devel~QRta~ Exploratory No. of Completions One Other 0 Stratigraphic 0 Service 5. Date Camp., Susp., or Aband. 12. Permit to Drill Number 11/26/2004 204-189 6. Date Spudded 13. API Number 10/8/2004 50- 029-20576-01-00 7. Date T.D. Reached 14. Well Name and Number: 10/14/2004 PBU E-20A 8. KB Elevation (ft): 15. Field / Pool(s): 59.11 Prudhoe Bay Field / Prudhoe Bay Pool 21. Logs Run: DIR / GR / PWD, DIR / GR / RES / NEU / DENS CASING, LINER AND CEMENTING RECORD SETJ'IN$DEPTH MD SETJ'INGDEPTHTVD I oP ~OTTOM lop E01TOM Surface 110' Surface 110' 30' 2699' 30' 2699' 29' 8767' 29' 7907' 25' 9425' 25' 8493' 9266' 10050' 8349' 9109' o GINJ 0 WINJ 0 WDSPL 2. Operator Name: BP Exploration (Alaska) Inc. 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 4a. Location.of Well (Governmental Section): Surface: 1743' SNL, 883' WEL, SEC. 06, T11 N, R14E, UM Top of Productive Horizon: 4138' SNL, 1437' EWL, SEC. 05, T11N, R14E, UM Total Depth: 4136' SNL, 1452' EWL, SEC. 05, T11N, R14E, UM 4b. Location of Well (State Base Plane Coordinates): Surface: x- 664103 y- 5975313 Zone- ASP4 TPI: x- 666483 y- 5972970 Zone- ASP4 Total Depth: x- 666498 Y- 5972972 Zone- ASP4 18. Directional Survey 181 Yes 0 No 22. PE.RFT. Insulated 72# 47# 26# 12.6# Conductor L-80 L-80 L-80 L-80 20" x 30" 13-3/8" 9-5/8" 7" 4-1/2" 23. Perforations open to Production (MD + TVD of Top and Bottom Interval, Size and Number; if none, state "none"): 2-7/8" Gun Diameter, 6 spf MD TVD MD TVD 9899' - 9915' 8958' - 8974' 9915' - 9935' 8974' - 8994' 26. Date First Production: December 8, 2004 Date of Test Hours Tested 12/14/2004 4 Flow Tubing Casing Pressure Press. 241 1362 25. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED Freeze Protected w/ 75 Bbls of Diesel 9. Plug Back Depth (MD+ TVD) 9962 + 9021 10. Total Depth (MD+TVD) 10050 + 9109 11. Depth where SSSV set (Nipple) 2112' MD 19. Water depth, if offshore N/A MSL 36" 17-1/2" 12-1/4" 8-1/2" 6-1/8" 24. SIZE 4-1/2", 12.6#,13Cr80 PRODUCTION TEST Method of Operation (Flowing, Gas Lift, etc.): Flowing OIL-BsL GAs-McF WATER-BsL 35 560 -0- CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). Submit core chips; if none, state "none". r~"'''' """-""-'." ..¡:~7YE!Jt':"f , j )~n~ 2. . .... , .?L~o'1t '~~~ ¡ -.'." ,,,,..;,.,,.1 Form 1 0-407 Revised 12/2003 PRODUCTION FOR TEST PERIOD ... CALCULATED ........ 24-HoUR RATE""'" OIL-BsL 212 27. None GAs-McF 3,357 W A TER-BsL -0- Ft Ft 16. Property Designation: ADL 028304 17. Land Use Permit: 20. Thickness of Permafrost 1900' (Approx.) 8 cu yds Concrete 2627 cu ft Arcticset II 1292 cu ft Class 'G', 130 cu ft AS I 213 cu ft 'G', 466 cu ft 'G', 163 cu ft 162 cu ft Class 'G' DEPTH SET (MD) 9273' PACKER SET (MD) 9216' CHOKE SIZE I GAS-OIL RATIO 960 15,829 OIL GRAVITY-API (CORR) 26.3 RBDMS 8FL DEC 2 () ?nn4 CONTINUED ON REVERSE SIDE ,/ (gý 28. GEOLOGIC MARKERS" 29. aRMATION TESTS Include and briefly summarize test results. List intervals tested, and attach detailed supporting data as necessary. If no tests were conducted, state "None". NAME MD rvD Sag River 9460' 8526' None Shublik A Shublik B Shublik C 9478' 9497' 9520' 8543' 8561' 8583' Sadlerochit 9540' 8603' Top CGL Base CGL 9698' 9790' 8758' 8850' 22TS 21TS 9800' 9845' 8860' 8904' Zone 1 B Zone 1A ITDF 9860' 9902' 8919' 8961' Base Sadlerochit 9983' 9042' 30. List of Attachments: Summary of Daily Drilling Reports and Post-Rig Work, Well Schematic Diagram, Surveys 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. I Signed Terrie Hubble ~~ ~~ ~Title Technical Assistant Datel::t l Lf lOt{ PBU E-20A 204-189 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Drilling Engineer: Thomas Schaefer, 564-4685 Permit No. I Approval No. INSTRUCTIONS GENERAL: This form is designed for submitting a complete and correct well completion report and log on alllypes of lands and leases in Alaska. ITEM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Altemating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. 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 4b: TPI (Top of Producing Interval). ITEM 8: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. ITEM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). ITEM 20: True vertical thickness. ITEM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 23: 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 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). ITEM 27: If no cores taken, indicate "None". ITEM 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only Legal Name E-20 Comma 3: 10/212004 FIT 0/12/2004 FIT 2.00 (ppg) 0.00 (ppg) . . 0/18/2004 9:55:29 AM Printed: 4.410 (psi 660 (psi 8.50 (ppg) ft 8,493.0 9,445.0 (ft) Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: E-20 E-20 REENTER+COMPLETE NABORS ALASKA DRILLING I NABORS 2ES Start: 9/27/2004 Rig Release: 10/16/2004 Rig Number: Spud Date: 11/27/1981 End: 10/16/2004 9/27/2004 00:00 . 07:00 7.00 MOB P PRE Cleaned pits and prepared for moving. Bridled up and secured service loops. Staged out camp, shops and pit module to DS-15 access road. Laid down derrick. Moved camp shops and pit module to E-pad. Staged rig module to DS-15 access rod. 07:00 - 10:00 3.00 MOB P PRE Wait on escort. Cleaned area around DS 15-26B 10:00 - 00:00 14.00 MOB P PRE Moved rig module to E-pad. Rig on pad at 23:50 hours. 9/28/2004 00:00 - 00:00 24.00 MOB N WAIT PRE Standby with rig while pre-decompletion work was completed. Cleaned and organized rig. Performed general maintenance. Bringing location to grade for rig placement. 9/29/2004 00:00 - 04:00 4.00 MOB N WAIT PRE Standby with rig. Raised area in front of well 6" to 8" for rig pad. Cleaned and organized rig and performed general maintenance while standing by. 04:00 - 05:30 1.50 MOB P PRE Laid down heculite and mats. Set wellhead equipment behind cellar. 05:30 - 08:30 3.00 MOB P PRE Moved camp, pit module and sub to location. 08:30 - 12:00 3.50 MOB P PRE Moved and spotted rig module over E-20. Laid down heculite and matts for pit module. Set in pit module. Spotted and hooked up camp. Built berm for cuttings tank. 12:00 - 15:30 3.50 MOB P PRE Held PJSM. Raised and pinned derrick. Unbridled. Rigged up floor and cellar. Spotted shop. Completed pre-spud checklist. 15:30 - 16:00 0.50 WHSUR P DECOMP Rig accepted at 15:30 hours. Held PSJM. 16:00 - 16:30 0.50 WHSUR DECOMP Installed secondary annular valve. 16:30 - 17:30 1.00 WHSUR P DECOMP Rigged up DSM lubricator. Pulled BPV. 17:30 - 18:00 0.50 KILL P DECOMP Rigged up circulating lines. 18:00 - 20:30 2.50 KILL P DECOMP Circulated out diesel freeze protect with clean seawater at 3 BPM with 100 psi. Well dead. Rigged down circulating lines. 20:30 - 21 :00 0.50 BOPSUP P DECOMP Installed TWC and tested from below with 1000 psi. 21 :00 - 00:00 3.00 BOPSUF P DECOMP Nippled down tree and adaptor flange. Installed double studded adaptor and BOPS. 9/30/2004 00:00 - 03:00 3.00 BOPSUP P DECOMP Filled BOP stack with water. Made up 5 1/2" test joint. Tested upper pipe rams, blind rams, manifold & valves, TIW valve, inside BOP & top drive to 250 psi low and 3500 psi high. Tested annular to 250 psi low and 2500 psi high. Rigged down test joint. BOP test witness waived by Chuck Scheve - AOGCC. 03:00 - 04:30 1.50 BOPSUF P DECOMP Rigged up lubricator. Pulled TWC. Rigged down lubricator. Cleared floor. 04:30 - 06:00 1.50 PULL P DECOMP Held PJSM. Rigged up Schlumberger to run string shot and chemical cutter. 06:00 - 08:00 2.00 PULL P DECOMP Ran in hole with string shot to 9052'. Shot interval from 8859' to 8871' to prepare for chemical cut. Pulled string shot. Made up chemical cutter. 08:00 - 10:30 2.50 PULL P DECOMP Ran in hole with 4 7/16" chemical cutter and cut 51/2" tubing at 8870' ELM. Pulled chemical cutter. Rigged down Schlumberger. 10:30 - 13:00 2.50 PULL P DECOMP Made up landing joint and screwed into tubing hanger. Drained stack and backed out lock down screws. Pulled tubing hanger to floor. PU - 185,000 Ibs. String weight - 175,000 Ibs. Laid down tubing hanger and landing joint. 13:00 - 14:00 1.00 PULL P DECOMP Rigged up 5 1/2" running equipment and spooling unit for control line. 14:00 - 16:30 2.50 PULL P DECOMP Laid down 51/2" 17# 1-80 IBT-M tubing and spooled control line to control valve. Retrieved +/-2060' of stainless steel tubing, 26 Printed: 10/18/2004 9:55:35 AM legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: E-20 E-20 REENTER+COMPlETE NABORS ALASKA DRilLING I NABORS 2ES Start: 9/27/2004 Rig Release: 10/16/2004 Rig Number: Spud Date: 11/27/1981 End: 10/16/2004 9/30/2004 14:00 - 16:30 2.50 PULL P DECOMP clamps and 3 stainless steel bands. 16:30 - 00:00 7.50 PULL P DECOMP Completed pulling out of hole with 51/2" 17# L·80 IBT-M tubing. Recovered a total of 211 joints, 20.22' cut joint, 12 GLM, control valve and XA nipple. 1 0/1/2004 00:00 - 01 :00 1.00 BOPSUP P DECOMP Made up 4" test joint and set test plug. Tested upper and lower variable bore rams, dart valve and TIW to 250 psi low and 3500 psi high. Tested annular to 250 psi low and 2500 psi high. Rigged down test joint. Ran and set wear bushing. 01 :00 - 01 :30 0.50 EV AL P DECOMP Held PJSM. Rigged up Schlumberger. 01 :30 . 04:30 3.00 EV AL P DECOMP Ran in hole with junk basket and 8 1/2" gauge ring. Tool initially stopped at +1- 8770'. Worked down to 8850'. WLM. (+/- 20' above tubing stub. Ran correlation strip for USIT tool. Pulled junk basket. Recovered pieces of possible banding material and cement. Correlation log showed Junk basket on top of tubing stub. 04:30 - 05:30 1.00 EVAL P DECOMP Changed out wireline heads and tools. Tested USIT tool on surface. 05:30 - 10:00 4.50 EV AL P DECOMP Ran in hole with US IT tool to 8865'. Logged from 8825' to surface. 10:00 - 16:30 6.50 EVAL P DECOMP Made up gyro tool and ran in hole. Ran gyro survey from 8850' to surface. 16:30 - 17:30 1.00 EVAL P DECOMP Held PSJM. Made up 9 5/8" EZSV. 17:30 - 20:00 2.50 STWHIP P WEXIT Ran and set 9 5/8" EZSV at 8810'. (4' above casing collar). 20:00 - 21 :00 1.00 STWHIP P WEXIT Cleared floor. Tested 9 5/8" casing to 3500 psi for 30 minutes. Test was good with no seepage in cellar. 21 :00 - 00:00 3.00 STWHIP P WEXIT Made up 9 5/8" whipstock with starter mill, 8" lower string mill and 8 1/2" upper string mill. Picked up MWD. Scribed MWD and uploaded. Made up UBHO, 9-DCS & 1 HWDP. Surface tested MWD. 1 0/2/2004 00:00 - 01 :00 1.00 STWHIP P WEXIT Picked up 21 joints of 5" HWDP. 01 :00 - 08:00 7.00 STWHIP P WEXIT Run in hole with whipstock assembly, picking up 4" DP to 8791'. 08:00 - 08:30 0.50 STWHIP P WEXIT Orient whipstock to 86 deg LHS. Tagged EZSV at 8791' DPM. Set anchor with 25K down. Shear lug with 40K down. TOW- 8767'. 08:30 - 09:30 1.00 STWHIP P WEXIT Pump high-viscosity pill and displaced the well over to 10.6 ppg LSND drilling fluid. 09:30 - 12:00 2.50 STWHIP P WEXIT Milled window from 8767' to 8772'. 12:00 - 12:30 0.50 STWHIP N RREP WEXIT Top drive locked up- overheating. Trouble shoot top drive. 12:30 - 17:30 5.00 STWHIP P WEXIT Milled window from 8772 to 8783 and 12' of new hole to 8795'. PU - 225k Ibs, SO - 160k Ibs, RT - 185k Ibs, off btm torque - 11,000, on btm torque - 15,000 at 80 RPM. Circulated at 500 GPM @ 2150 psi. TOW - 8767' and BOW - 8783'. 17:30 - 18:30 1.00 STWHIP P WEXIT Pumped sweep. Reamed and back reamed thru window. Worked pipe thru window w/o rotating - window is clean. Circulated bottoms up. 18:30 - 19:00 0.50 STWHIP P WEXIT Ran FIT to equivalent of 12.0 ppg MW with 10.6 ppg mud and 575 psi. Monitor well - okay. 19:00 - 20:00 1.00 STWHIP P WEXIT Blew down surface equipment. Laid down 2 singles. Serviced rig and top drive. Inspected oil lube filters. Found large metal shavings in filters which appeared to be from bearings.. 20:00 - 21 :00 1.00 STWHIP P WEXIT Slipped and cut 100' of drilling line. 21 :00 - 00:00 3.00 STWHIP P WEXIT Pulled out of hole laying down 4" DP. Printed: 10/18/2004 9:55:35 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: E-20 E-20 REENTER+COMPLETE NABORS ALASKA DRILLING I NABORS 2ES Start: Rig Release: Rig Number: 9/27/2004 10/16/2004 Spud Date: 11/27/1981 End: 10/16/2004 10/3/2004 00:00 - 03:00 3.00 STWHIP P WEXIT Continued to pull out of hole. Laid down 4" DP and stood back HWDP. 03:00 - 04:00 1.00 STWHIP P WEXIT Laid down DCS and bumper sub 04:00 - 04:30 0.50 STWHIP P WEXIT Down loaded MWD and laid down. 04:30 - 05:00 0.50 STWHIP P WEXIT Broke out and laid down milling assembly. Upper mill was full gauge. 05:00 - 06:00 1.00 STWHIP P WEXIT Pulled wear bushing. Flushed out metal shavings from inside BOP stack. Re-ran wear bushing. 06:00 - 07:30 1.50 STWHIP N RREP WEXIT Ran in hole with HWDP. Made up RTTS and set at 50'. Tested RTTS w/1000 psi· okay. Laid down running tool. 07:30 - 11 :00 3.50 STWHIP N RREP WEXIT Rigged down floor. Removed Bails and elevators. Broke saver sub, ISOP and swivel packing connections. 11 :00 - 12:00 1.00 STWHIP N RREP WEXIT Bridled up. 12:00 - 15:00 3.00 STWHIP N RREP WEXIT Drained lube oil from top drive. Removed kelly hose, electric service loop and block links. Lowered pipe chute. 15:00 - 16:00 1.00 STWHIP N RREP WEXIT Held PJSM. Laid down derrick. Secured blocks and drilling line. 16:00 - 17:30 1.50 STWHIP N RREP WEXIT Held PJSM with crane crew. Removed top drive and secured to transport trailer. 17:30 - 19:30 2.00 STWHIP N RREP WEXIT Raised derrick & pipe chute. Bridled down Hung off blocks. 19:30 - 00:00 4.50 STWHIP N RREP WEXIT Removed draw works guards, brake band equalizing bar, pin and bushing for inspection. Prepared cellar for paint and performed general housekeeping. 10/4/2004 00:00 - 00:00 24.00 STWHIP N RREP WEXIT Re-installed brake band equalizer bar. Tore down top drive and found the main thrust bearing had failed. Washed out metal shavings and cleaned parts. New parts for top drive have arrived in Deadhorse. Performed general housekeeping, painting and maintenance while overhauling top drive. 10/5/2004 00:00 - 00:00 24.00 STWHIP N RREP WEXIT Performed general housekeeping, painting and maintenance while overhauling top drive. Top drive cleaned and reassembled. Chip found in main gear. Continue topdrive overhaul while order new bull gear. 10/6/2004 00:00 - 00:00 24.00 STWHIP N RREP WEXIT Perform general maintenance, welding and painting on rig. Installed main drive gear on top drive and continued overhaul. 1017/2004 00:00 - 08:00 8.00 STWHIP N RREP WEXIT Performed general housekeeping, painting and maintenance while overhauling top drive. Top drive reassembled. Finished top drive overhaul and off rig checks. Laid down derrick. 08:00 - 09:30 1.50 STWHIP N RREP WEXIT Spotted crane. Picked up and set in top drive. 09:30 - 11 :00 1.50 STWHIP N RREP WEXIT Raised derrick and hung block links. 11 :00 - 12:00 1.00 STWHIP N RREP WEXIT Bridled down. 12:00 - 17:30 5.50 STWHIP N RREP WEXIT Made up kelly hose. Reconnected service loops. Tied back bridle lines. Filled gear case. Installed blower hose and bales. Welded bracket on top drive. 17:30 - 21 :00 3.50 STWHIP N RREP WEXIT Energized top drive and test functioned. Adjusted clamps on link tilt. Reassembled grabber foot. Torqued up saver sub connections and clamps. Tightened wash pipe unions. 21 :00 - 22:00 1.00 STWHIP N RREP WEXIT Circulated through top drive and rotated at 80 RPM for 15 minutes, 100 RPM for 15 minutes and at 156 maximum RPM for 10 minutes. Pressure tested wash pipe packing to 3500 psi. 22:00 - 23:30 1.50 STWHIP N RREP WEXIT Held PJSM. Made up RTTS retrieving tool and TIW valve. Engaged packer at 50', checked for pressure and released packer. Broke out and laid down packer. Hole was full. 23:30 - 00:00 0.50 STWHIP N RREP WEXIT Pulled out of hole with HWDP. 10/8/2004 00:00 - 01 :00 1.00 DRILL P INT1 Made up Directional BHA #2 with bit, motor and MWD. Printed: 10/18/2004 9:55:35 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: E-20 E-20 REENTER+COMPLETE NABORS ALASKA DRILLING I NABORS 2ES Start: Rig Release: Rig Number: 9/27/2004 1 0/16/2004 Spud Date: 11/27/1981 End: 10/16/2004 10/8/2004 00:00 - 01 :00 1.00 DRILL P INT1 Oriented and uploaded MWD. 01 :00 - 03:00 2.00 DRILL P INT1 Picked up jars and ran in hole with HWDP. Tested MWD. 03:00 - 08:30 5.50 DRILL P INT1 Ran in hole, picking up 4" DP to 8646'. Filled pipe and broke circulation every 3000'. Stood back DP from 8646' to 7710'. 08:30 - 09:30 1.00 DRILL N RREP INT1 Checked out top drive. Lube oil pump not maintaining correct oil pressure. 09:30 . 11 :00 1.50 DRILL P INT1 Picked up 4" DP from 7710' to 8739'. Broke circulation and oriented tools to 80 degrees left. 11:00 -11:30 0.50 DRILL N RREP INT1 Changed out lube oil pump on top drive. 11 :30·12:00 0.50 DRILL P INT1 Worked thru window from 8767' to 8783'. Reamed from 8783' to 8795'. PU - 215k Ibs. SO 150 k Ibs. Had 2500 psi off bottom and 2750 psi on bottom at 516 GPM. 12:00 . 00:00 12.00 DRILL P INT1 Directionally drilled and slide from 8795 to 9218 (8305 TVD). Dropping angle and turning left. 1 0/9/2004 00:00 - 04:30 4.50 DRILL P INT1 Directionally drilled 8 1/2" hole from 9218 to 9393. 04:30 - 05:30 1.00 DRILL P INT1 Circulate bottoms up for samples. 05:30 . 06:30 1.00 DRILL P INT1 Directionally drilled 8 1/2" hole to 9425'. 06:30 - 07:30 1.00 DRILL P INT1 Circulate bottoms up for samples. 07:30 . 08:00 0.50 DRILL P INT1 Pulled out of hole from 9425' to 8767'. 08:00 - 09:00 1.00 DRILL P INT1 Completed MAD Pass from 8767 to 8567 for JORPES at 300 to 350 FPH. 09:00 - 10:00 1.00 DRILL P INT1 Slipped and cut drilling line. 10:00 . 10:30 0.50 DRILL P INT1 Serviced rig and top drive. 10:30·11 :00 0.50 DRILL P INT1 Ran in hole from 8567' to 9425'. No problems. 11 :00 - 12:30 1.50 DRILL P INT1 Pumped high viscosity sweep at 540 GPM and 2950 psi. Flow checked well. Spotted liner-running pill on bottom. 12:30 . 16:30 4.00 DRILL P INT1 Pulled out of hole to window. Flow checked well. Pumped dry job. Continued pulling out of hole to HWDP. 16:30 . 18:00 1.50 DRILL P INT1 Laid down HWDP, jars and DCS. 18:00 - 19:30 1.50 DRILL P INT1 Flushed out MWD and downloaded. Laid down MWD, motor and bit. Cleared floor. 19:30 - 20:30 1.00 CASE P LNR1 Held PJSM. Rigged up to run 7" liner. 20:30 - 22:00 1.50 CASE P LNR1 Made up 7" 26# float equipment. Checked floats. Picked up 19 joints of 7" 26# L-80 BTC-M and L TC-M liner. Made up 7" X 9 5/8" HMC liner hanger and ZXP Liner top packer wI running tool. 22:00 - 22:30 0.50 CASE P LNR1 Ran in one stand of DP and circulated liner volume. 22:30 - 00:00 1.50 CASE P LNR1 Ran in hole with 7" liner on 4" DP, filling pipe every 10 stands. 10/10/2004 00:00 - 03:30 3.50 CASE P LNR1 Run in hole with 7" liner to 8767. 03:30 - 04:00 0.50 CASE P LNR1 Circulated liner and DP volume. 04:00 - 04:30 0.50 CASE P LNR1 Run in hole from 8767' to 9401'. 04:30 - 05:00 0.50 CASE P LNR1 Made up cementing head, manifold and lines. 05:00 - 05:30 0.50 CASE P LNR1 Tagged bottom at 9425'. Staged pump up to 7 BPM wI 1400 psi. Circulated bottoms up. 05:30 - 06:30 1.00 CEMT P LNR1 Rigged up Schlumberger. Pumped 5 BBLS of water. Pressure tested lines to 4500 psi. Flushed water from lines. Pumped 25 BBLS of 11.6 ppg Mud Push II Spacer followed by 38 BBLS (183 sxs) of 15.8 class G cement with .4% D167, .3% D65, .2% D46 and .03% B155. Washed cement from lines and dropped dart. Displaced cement with 10.6 ppg mud using Dowell. Latch plug at 81.6 BBLS and bumped plug at 113 BBLS with 4000 psi and set hanger. Bled off pressure. Floats held. Set down 45K Ibs and rotated to release tool. Pressured up to 1000 psi and Printed: 10/18/2004 9:55:35 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: E-20 E-20 REENTER+COMPLETE NABORS ALASKA DRILLING I NABORS 2ES Start: Rig Release: Rig Number: 9/27/2004 10/16/2004 Spud Date: 11/27/1981 End: 10/16/2004 10/10/2004 05:30 . 06:30 1.00 CEMT P LNR1 unstung to release setting dogs. CIP at 06:20 hours. 06:30 . 07:30 1.00 CEMT P LNR1 Circulated 500 strokes and set packer. Circulated bottoms up at 10 BPM w/ 3000 psi. Recovered spacer and trace of cement. 07:30 - 08:30 1.00 CEMT P LNR1 Rigged down cementing head, manifold and lines. 08:30 - 12:30 4.00 CEMT P LNR1 Pulled out of hole. Laid down liner running tool. 12:30 - 13:00 0.50 WHSUB P LNR1 Pulled wear bushing 13:00 . 13:30 0.50 CASE P LNR1 Tested casing to 3500 psi for 30 minutes - okay. 13:30·14:00 0.50 CASE P LNR1 Rigged up to run 7" tieback. 14:00 - 23:00 9.00 CASE P LNR1 Made up locator with 5.81' of seals. Ran 216 joints of 7" 26# L-80 BTC-M, L TC-M and IJ4S Casing 8600' 23:00 - 00:00 1.00 CASE P LNR1 Changed out to longer bails on top drive. 1 0/11/2004 00:00 - 01 :30 1.50 CASE P LNR1 Completed installing and adjusting long bales. Rigged up cementing head. Tagged liner top with no-go at 8625'. Picked up and spaced out circulating ports. Broke circulation. PU - 250k Ibs. SO 165k Ibs. 01 :30 - 02:30 1.00 CEMT P LNR1 Circulated while rigging up cementers and hot oiler. Held PJSM. Pumped 5 BBLS of water and pressure tested cement line, manifold and head to 4500 psi. Pressure tested diesel line to 4000 psi. 02:30 - 05:00 2.50 CEMT P LNR1 Pumped 25 BBLS of water, 35 BBLS of high viscosity spacer, and 150 BBLS of diesel at 60 F. Dropped Bottom plug. Batch mixed and pumped 10 BBLS of 11.6 ppg Mud Push Spacer followed by 83 BBLS of 13.5 ppg lead cement and 29 BBLS of 15.8 ppg tail cement. Washed out lines. Dropped top plug. Displaced cement with 330 BBLS of mud at 7 -10 BPM. Bumped plug with 1200 psi. CIP at 4:51 AM. Recovered 59 BBLS of clean diesel. 05:00 - 06:30 1.50 CEMT P LNR1 Slacked off seals. Bled off pressure. Seals holding. Rigged down cementers, manifold and lines. Cleared floor. 06:30 . 09:30 3.00 CASE P LNR1 Split stack and picked up. Sucked fluid out of landing joint. Picked up string weight to 250k Ibs. Landed 7" casing in wellhead. Cut off landing joint. Slid BOPS over to stump. 09:30 . 13:30 4.00 BOPSUPP LNR1 Installed 135/8" 5000 psi tubing spool. Installed lower annulus valves. Nippled up BOP stack. 13:30 - 14:30 1.00 BOPSUPP LNR1 Ran and set test plug. Tested BOP stack body to 250 psi low and 3500 psi high. Pulled test plug Installed wear bushing. 14:30·16:30 2.00 DRILL P PROD1 Picked up 6118" bit, motor, and MWD. Loaded MWD and flow checked. 16:30 - 17:30 1.00 DRILL P PROD1 Continued picking up DC's, jars and HWDP. 17:30 - 18:00 0.50 DRILL P PROD1 Picked up 33 joints of 4" DP. 18:00 . 20:30 2.50 DRILL P PROD1 Ran in hole with directional assembly to 8556'. 20:30 . 21 :00 0.50 DRILL P PROD1 Serviced top drive. 21 :00 - 22:00 1.00 DRILL P PROD1 Test 7" casing to 3500 psi for 10 minutes. Drilled out float collar at 8608'. Ran in hole to 9335'. 22:00 - 23:00 1.00 CASE P PROD1 Pressure tested 7" liner and tieback to 3500 psi for 30 minutes. 23:00 - 00:00 1.00 DRILL P PROD1 Drilled float collar at 9351 '. 10/12/2004 00:00 - 00:30 0.50 DRILL P PROD1 Drilled out insert collar at 9351', float collar at 9390' and cement to 9423'. 00:30 - 02:00 1.50 DRILL P PROD1 Pumped 100 BBLS of water and 45 BBLS of high viscosity spacer. Displaced well with 8.5 ppg. FloPro mud. 02:00 - 03:00 1.00 DRILL P PROD1 Drilled out float shoe at 9425' and 20' of new hole to 9445'. 03:00 - 03:30 0.50 DRILL P PROD1 Circulated well. Performed FIT with 8.5 ppg mud - 660 psi at Printed: 10/18/2004 9:55:35 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: E-20 E-20 REENTER+COMPLETE NABORS ALASKA DRILLING I NABORS 2ES Start: Rig Release: Rig Number: 9/27/2004 1 0/16/2004 Spud Date: 11/27/1981 End: 10/16/2004 1 0/12/2004 03:00 - 03:30 0.50 DRILL P PROD1 8493' TVD equivalent to 10 ppg. 03:30 . 18:30 15.00 DRILL P PROD1 Directionally drill & slid 6 1/8" hole from 9445' to 9687'. 18:30 - 19:00 0.50 DRILL P PROD1 Circulated well. Pulled 2 stands to liner shoe. 19:00 . 22:00 3.00 DRILL P PROD1 Flow checked well. Pumped dry job. Pulled out of hole to BHA. 22:00 - 22:30 0.50 DRILL P PROD1 Pulled out with BHA. 22:30 - 00:00 1.50 DRILL P PROD1 Unloaded radioactive sources. Down loaded MWD. Laid down MWD, motor, stabilizer and bit. 10/13/2004 00:00 . 00:30 0.50 WHSUR P PROD1 Pulled wear bushing. Made up test joint and installed test plug. 00:30 - 04:00 3.50 BOPSUP P PROD1 Tested upper & lower pipe rams, blind rams, manifold & valves, TIW valve, inside BOP & top drive to 250 psi low and 3500 psi high. Tested annular to 250 psi low and 2500 psi high. Witness of BOP test waived by John Crisp - AOGCC. 04:00 - 04:30 0.50 BOPSUP P PROD1 Pulled test plug. Installed wear bushing. Blew down surface equipment. 04:30 . 05:30 1.00 DRILL P PROD1 Held PJSM. Picked up new bit, motor and stabilizer. 05:30 - 07:00 1.50 DRILL P PROD1 Uploaded MWD. Loaded radioactive sources. 07:00 - 07:30 0.50 DRILL P PROD1 Completed picking up directional BHA #4 07:30 - 10:30 3.00 DRILL P PROD1 Ran in hole to 9335'. Filled DP every 3000'. 10:30 - 11 :30 1.00 DRILL P PROD1 Serviced rig and top drive. 11 :30 - 14:00 2.50 DRILL N RREP PROD1 Attempted to remove swivel packing, unable to break out connection. Reassembled top drive. 14:00 - 14:30 0.50 DRILL N PROD1 Ran in hole to 9867' TD. 14:30 - 00:00 9.50 DRILL P PROD1 Drilled 6 1/8" directional hole from 9867' to 9991' while dropping angle. 10/14/2004 00:00 - 03:30 3.50 DRILL P PROD1 Drilled 6 1/8" directional hole from 9991' to 10050' TMD - 9109' TVD. 03:30 - 04:30 1.00 DRILL P PROD1 Pumped high viscosity sweep. 04:30 - 05:00 0.50 DRILL P PROD1 Pulled out to 9335. 05:00 - 06:00 1.00 DRILL P PROD1 Slipped and cut drilling line 06:00 - 07:00 1.00 DRILL P PROD1 Serviced rig and top drive. 07:00 - 08:00 1.00 DRILL N RREP PROD1 Worked on high-pressure fittings on top drive. 08:00 - 08:30 0.50 DRILL P PROD1 Ran in hole from 9335 to 10050' TD . no fill. 08:30 - 10:00 1.50 DRILL P PROD1 Pumped high viscosity sweep. Circulated bottoms up. Spotted 40 BBL pill for liner. 10:00 - 10:30 0.50 DRILL P PROD1 Pulled out of hole to 9335'. 10:30 - 11 :00 0.50 DRILL P PROD1 Dropped dart. Opened circulating sleeve. Pumped dry job. 11 :00 - 14:00 3.00 DRILL P PROD1 Pulled out of hole to BHA. 14:00 - 14:30 0.50 DRILL P PROD1 Laid down HWDP, jars and DCS. 14:30 - 16:30 2.00 DRILL P PROD1 Flushed out MWD. Unloaded radioactive sources. Laid down MWD, stabilizer, motor and bit. Cleared floor. 16:30 - 17:00 0.50 CASE P RUNPRD Rigged up to run 4 1/2" liner. 17:00 - 18:30 1.50 CASE P RUNPRD Picked up 4 1/2" float shoe, float collar, landing collar. Checked floats. Picked up remaining 41/2" 4 1/2" 12.6# L-80 IBT-M liner, liner hanger and liner top packer. 18:30 - 19:00 0.50 CASE P RUNPRD Circulated thru liner. Laid down casing running tools. 19:00 - 00:00 5.00 CASE P RUNPRD Run in hole with 4 1/2" 12.6# L-80 IBT-M liner on 4" DP to 8277'. Filled pipe every 10 stands. 10/15/2004 00:00 - 00:30 0.50 CASE P RUNPRD Ran in hole to 9425'. 00:30 - 01 :00 0.50 CASE P RUNPRD Circulated liner and DP volume. 01 :00 - 01 :30 0.50 CASE P RUNPRD Ran in hole t010025'. Made up cementing head. 01 :30 - 02:30 1.00 CEMT P RUNPRD Washed from 10025' to 10050'. Held PJSM. Circulated bottoms up at 5 BPM w/1 000 psi while batch mixing cement. PU 180 K SO 145 K. Printed: 10/18/2004 9:55:35 AM · legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: E-20 E-20 REENTER+COMPlETE NABORS ALASKA DRilLING I NABORS 2ES Start: Rig Release: Rig Number: 9/27/2004 1 0/16/2004 Spud Date: 11/27/1981 End: 10/16/2004 10/15/2004 02:30 - 03:30 1.00 CEMT P RUNPRD Pumped 5 BBLS of water. Pressure tested lines to 4500 psi. Pumped 15 BBLS of 9.5 ppg Mud Push spacer followed by 28.8 BBLS (135 sxs) of 15.8 ppg class G cement with additives. Washed out lines with perforating pill and dropped dart. Displaced cement with 30 BBLS of perforating pill and 70.8 BBLS of mud. (100.8 BBLS total) Bumped plug with 3500 psi and set liner hanger. Set down 25K Ibs. Checked floats. Held okay. CIP at 03:20. Reciprocated liner while cementing. 03:30 - 05:00 1.50 CEMT P RUNPRD Rotated to release tool. Pressured up to 1000 psi and unstung to release setting dogs. Circulated 500 strokes and set packer. Rotated on packer. Had good surface indication of packer setting. Circulated bottoms up at 12 BPM and 3100 psi. Recovered spacer and 8 to 10 BBLS of cement. 05:00 - 05:30 0.50 CEMT P RUNPRD Clean out shakers for seawater displacement. 05:30 - 06:30 1.00 CEMT P RUNPRD Displaced well with clean seawater at 10 BPM and 2300 psi. 06:30 - 07:00 0.50 CEMT P RUNPRD Laid down cementing head, valves and hoses. 07:00 - 13:00 6.00 CEMT P RUNPRD Laid down 4" DP and liner running tool. Cleared floor. 13:00 - 13:30 0.50 WHSUR P RUNCMP Pulled wear bushing. 13:30 - 14:00 0.50 RUNCOIvP RUNCMP Pressure tested casing to 3500 psi for 30 minutes. 14:00 - 15:30 1.50 RUNCOIvP RUNCMP Rigged up power tongs, computer and compensator for 4 1/2" chrome completion 15:30 - 16:30 1.00 RUNCOIvP RUNCMP Held PSJM. Made up 41/2" tail pipe assembly, XN nipple, X Nipples & Baker 7" x 4 1/2" S-3 permanent packer. 16:30 - 18:00 1.50 RUNCOIvP RUNCMP Run 41/2" 12.6# 13CR Vam Top tubing to 1400'. 18:00 - 18:30 0.50 RUNCOIvP RUNCMP Serviced rig 18:30 - 00:00 5.50 RUNCOIvP RUNCMP Continued running 4 1/2" 12.6 # 13 Chrome tubing completion. 1 0/16/2004 00:00 - 02:30 2.50 RUNCOIvP RUNCMP Continued running 4 1/2" 12.6 # 13 Chrome tubing completion (215 joints total). PU - 135000 Ibs. SO - 110000 Ibs. 02:30 - 03:30 1.00 RUNCOIvP RUNCMP Tagged liner top packer at 9276' TBM on down stroke. Spaced out tubing with pup joints. 03:30 - 04:30 1.00 RUNCOIvP RUNCMP Rigged down compensator. Made up tubing hanger and landing joint. Landed tubing with WLEG at 9273'. 04:30 - 07:00 2.50 RUNCOIvP RUNCMP Rigged up circulating lines. Reverse circulate well with seawater and inhibitor. 07:00 - 08:30 1.50 RUNCOIvP RUNCMP Drop 1-7/8" ball and rod and seat in XN Nipple. Test tubing to 3500 psi for 30 minutes. Bleed off tubing to 1500 psi. Test Annulus to 3500 psi for 30 minutes. Bleed off tubing pressure and shear DCK valve 08:30 - 12:00 3.50 BOPSUF P WHDTRE Dry rod TWC and test from below to 1000 psi. Blowdown all surface equipment. ND BOP's and NU adapter flange. 12:00 - 16:00 4.00 BOPSUF P WHDTRE NU tree and test to 5000 psi. Pull TWC with lubricator. 16:00 - 20:00 4.00 RUNCOIvP RUNCMP RU LRHOS and freeze protect the well with 75 bbls of diesel. Allow to U tube. Set BPV and test from below to 1000 psi. RD LRHOS. 20:00 - 21 :00 1.00 RUNCOIvP RUNCMP Remove secondary annulus valve. Secure tree and cellar. Release rig @ 2100 hrs 10/16/2004. Printed: 10/18/2004 9:55:35 AM Well: Field: API: Permit: . . 09/29/04 1 0/08/04 10/16/04 Nabors 2ES 11/19/04 PULLED BALUROD ASSY FROM 9232' SLM. PULLED BK-DGLV FROM STA# 3,6158' SLM. PULLED BEK-DCK SHEAR VL V FROM ST A# 4, 3411' SLM. SET BK-LGL V IN ST A# 4, 3411' SLM. JOB SUSPENDED FOR WEATHER. STA # 3 LEFT EMPTY. E-20A Prudhoe Bay Unit 50-029-20576-01-00 204-189 Accept: Spud: Release: Rig: 11/21/04 SET BK-OGLV IN STA# 3,6168' SLM. PULLED RHC FROM 9236' SLM. DRIFT WI 27/8" D-GUN AND SB TO 9948' SLM ( SAMPLE OF CEMENT). 11/26/04 PERFORATE WELL. RUN #1: RIH 20' HSD GUN, PERFORATE 9915' - 9935', 2-7/8" GUN DIAMETER, 6 SPF, 60 DEGREE PHASING, RANDOM ORIENTATION. RUN #2: RIH 16' HSD GUN, PERFORATE 9899' - 9915', 2- 7/8" GUN DIAMETER, 6 SPF, 60 DEGREE PHASING, RANDOM ORIENTATION. POST RIG WORK . . 01-Nov-04 AOGCC Robin Deason 333 W. 7th Ave. Suite 100 Anchorage, AK 99501 DEFINITIVE Re: Distribution of Survey Data for Well E-20A Dear Dear Sir/Madam: Enclosed are two survey hard copies and one disk with the *.PTT and *.PDF files. Tie-on Survey: Window / Kickoff Survey: Projected Survey: 8,700.00' MD 8,767.00' MD 10,050.00' MD (if applicable) PLEASE ACKNOWLEDGE RECEIPT BY SENDING AN EMAIL TO CARL.ULRICH@HALLlBURTON.COM OR SIGNING AND RETURNING A COpy OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Carl Ulrich 6900 Arctic Blvd. Anchorage, AK 99518 Date q /lJ r!; V lM '-1 Signed 1Lrr1 (j/4J Please call me at 273-3545 if you have any questions or concerns. Regards, William T. Allen Survey Manager Attachment(s) ~~u¿--r~q Halliburton Sperry-Sun North Slope Alaska BPXA PBU_WOA E Pad E-20A Job No. AKZZ3317478, Surveyed: 14 October, 2004 Survey Report 20 October, 2004 Your Ref: API 500292057601 Surface Coordinates: 5975313.00 N, 664103.00 E (70· 20'19.9612" N, 148· 40' 06.0165" W) Grid Coordinate System: NAD27 Alaska State Planes, Zone 4 Surface Coordinates relative to Project H Reference: 975313.00 N, 164103.00 E (Grid) Surface Coordinates relative to Structure Reference: 2116.23 N, 1610.73 E (True) Kelly Bushing Elevation: 59. 11ft above Mean Sea Level Kelly Bushing Elevation: 59. 11ft above Project V Reference Kelly Bushing Elevation: 59. 11ft above Structure Reference Spl!!r"'r"'Y-SUi1 DRfLLING SERVic:es A Halliburton Company DEFINITIVE . . Survey Ref: svy4421 Halliburton Sperry-Sun Survey Report for PBU_WOA é Pad - é-20A Your Ref: API 500292057601 Job No. AKZZ3317478, Surveyed: 14 October, 2004 BPXA North Slope Alaska Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (0/100ft) 8700.00 30.450 146.390 7790.36 7849.47 2181.23S 1994.74 E 5973175.95 N 666145.00 E 2952.85 Tie On Point MWD+IIFR+MS 8767.00 30.730 147.300 7848.04 7907.15 2209.77 S 2013.38 E 5973147.82 N 666164.26 E 0.808 2986.22 Window Point 8792.75 31.850 145.000 7870.04 7929.15 2220.88 S 2020.84 E 5973136.88 N 666171.96 E 6.359 2999.34 8824.68 31.350 142.150 7897.24 7956.35 2234.34 S 2030.77 E 5973123.64 N 666182.18 E 4.932 3015.88 . 8918.32 28.820 134.440 7978.29 8037.40 2269.39 S 2061.84 E 5973089.28 N 666214.02 E 4.928 3062.65 8979.63 27.360 128.730 8032.38 8091.49 2288.56 S 2083.39 E 5973070.59 N 666235.98 E 4.988 3091.43 9072.74 26.500 122.520 8115.41 8174.52 2313.12 S 2117.60 E 5973046.78 N 666270.72 E 3.157 3132.99 9165.73 25.790 119.540 8198.89 8258.00 2334.24 S 2152.70 E 5973026.43 N 666306.27 E 1.605 3172.75 9259.71 25.250 113.580 8283.72 8342.83 2352.35 S 2188.86 E 5973009.12 N 666342.82 E 2.791 3211.12 9353.29 24.570 107.930 8368.60 8427.71 2366.32 S 2225.67 E 5972995.96 N 666379.93 E 2.644 3247.03 9382.39 24.290 107.350 8395.10 8454.21 2369.97 S 2237.14 E 5972992.56 N 666391.47 E 1.267 3257.72 9420.11 24.280 106.970 8429.48 8488.59 2374.55 S 2251.96 E 5972988.31 N 666406.39 E 0.415 3271.44 9454.67 19.890 106.540 8461.50 8520.61 2378.29 S 2264.40 E 5972984.83 N 666418.91 E 12.711 3282.88 9485.54 16.570 107.060 8490.81 8549.92 2381.08 S 2273.64 E 5972982.25 N 666428.21 E 10.768 3291.39 9520.33 12.620 110.460 8524.47 8583.58 2383.87 S 2281.95 E 5972979.65 N 666436.58 E 11.613 3299.23 9548.09 10.890 111.000 8551.65 8610.76 2385.87 S 2287.24 E 5972977.76 N 666441.91 E 6.245 3304.39 9580.09 10.310 111.060 8583.10 8642.21 2387.98 S 2292.74 E 5972975.77 N 666447.45 E 1.813 3309.77 9609.88 10.090 109.430 8612.42 8671.53 2389.81 S 2297.68 E 5972974.05 N 666452.44 E 1.218 3314.56 9649.07 10.240 109.480 8651.00 8710.11 2392.11 S 2304.21 E 5972971.89 N 666459.01 E 0.383 3320.80 9672.19 10.220 108.220 8673.75 8732.86 2393.44 S 2308.09 E 5972970.65 N 666462.92 E 0.972 3324.48 9702.96 8.880 103.030 8704.09 8763.20 2394.82 S 2313.00 E 5972969.37 N 666467.86 E 5.172 3328.93 . 9733.59 7.390 98.250 8734.42 8793.53 2395.64 S 2317.25 E 5972968.65 N 666472.13 E 5.338 3332.52 9766.68 5.220 88.840 8767.30 8826.41 2395.92 S 2320.86 E 5972968.45 N 666475.74 E 7.242 3335.27 9797.79 4.730 81.850 8798.30 8857.41 2395.70 S 2323.55 E 5972968.72 N 666478.42 E 2.503 3337.02 9848.01 4.760 81.270 8848.35 8907.46 2395.09 S 2327.66 E 5972969.42 N 666482.52 E 0.113 3339.49 9953.28 4.550 79.730 8953.27 9012.38 2393.69 S 2336.08 E 5972971.01 N 666490.91 E 0.232 3344.45 10013.29 4.010 83.720 9013.11 9072.22 2393.03 S 2340.51 E 5972971.76 N 666495.32 E 1.027 3347.12 10050.00 4.010 83.720 9049.73 9108.84 2392.75 S 2343.06 E 5972972.10 N 666497.87 E 0.000 3348.73 Projected Survey All data is in Feet (US Survey) unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Global Northings and Eastings are relative to NAD27 Alaska State Planes, Zone 4. The Dogleg Severity is in Degrees per 100 feet (US Survey). Vertical Section is from Well Reference and calculated along an Azimuth of 135.000° (True). 20 October, 2004 - 10:01 Page 2 of 3 DrillQuest 3.03.06.006 Halliburton Sperry-Sun Survey Report for PBU_WOA E Pad - E-20A Your Ref: AP/500292057601 Job No. AKZZ3317478, Surveyed: 14 October, 2004 BPXA North Slope Alaska Based upon Minimum Curvature type calculations, at a Measured Depth of 10050.00ft., The Bottom Hole Displacement is 3348.91ft., in the Direction of 135.6010 (True). Comments Measured Depth (ft) Station Coordinates TVD Northin9s Eastings ~) ~) ~) Comment . 8700.00 8767.00 10050.00 7849.47 7907.15 9108.84 2181.23 S 2209.77 S 2392.75 S 1994.74 E 2013.38 E 2343.06 E Tie On Point Window Point Projected Survey Survey tool proqram for E-20A From Measured Vertical Depth Depth (ft) (ft) To Measured Vertical Depth Depth Survey Tool Description (ft) (ft) 0.00 8700.00 0.00 8700.00 7849.47 10050.00 7849.47 AK-1 BP _HG - GYD-CT-CMS (E-20) 9108.84 MWD+IIFR+MS (E-20A) . 20 October, 2004 - 10:01 Page 3 of 3 DrillQuest 3.03.06.006 . . 01-Nov-04 AOGCC Robin Deason 333 W. 7th Ave. Suite 100 Anchorage, AK 99501 Re: Distribution of Survey Data for Well E-20A MWD Dear Dear Sir/Madam: Enclosed are two survey hard copies and one disk with the *.PTT and *.PDF files. Tie-on Survey: Window / Kickoff Survey: Projected Survey: 8,700.00' MD 8,767.00' MD 10,050.00' MD (if applicable) PLEASE ACKNOWLEDGE RECEIPT BY SENDING AN EMAIL TO CARL.ULRICH@HALLlBURTON.COM OR SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Carl Ulrich 6900 Arctic Blvd. Anchorage, AK 99518 Date q tV frv ~'1 Signed 1LJ f) j¡J Please call me at 273-3545 if you have any questions or concerns. Regards, William T. Allen Survey Manager Altachment(s) ;Z 0 vi - I J? q Halliburton Sperry-Sun North Slope Alaska BPXA PBU_WOA E Pad E-20A (mwd) . Job No. AKMW3317478, Surveyed: 14 October, 2004 Survey Report 20 October, 2004 Your Ref: API 500292057601 Surface Coordinates: 5975313.00 N, 664103.00 E (70020'19.9612" N, 148040' 06.0165" W) Grid Coordinate System: NAD27 Alaska State Planes, Zone 4 . Surface Coordinates relative to Project H Reference: 975313.00 N, 164103.00 E (Grid) Surface Coordinates relative to Structure Reference: 2116.23 N, 1610.73 E (True) Kelly Bushing Elevation: 59. 11ft above Mean Sea Level Kelly Bushing Elevation: 59. 11ft above Project V Reference Kelly Bushing Elevation: 59. 11ft above Structure Reference SPI!!I""'I""'Y-SU:1"'1 CFHL.. L.. ING SERVlc:es A Halliburton Company Survey Ref: svy4422 Halliburton Sperry-Sun Survey Report for PBU_WOA E Pad - E-20A (mwd) Your Ref: API 500292057601 Job No. AKMW3317478, Surveyed: 14 October, 2004 BPXA North Slope Alaska Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (°/1 DOft) 8700.00 30.450 146.390 7790.36 7849.47 2181.23S 1994.74 E 5973175.95 N 666145.00 E 2952.85 Tie On Point MWD Magnetic 8767.00 30.730 147.300 7848.04 7907.15 2209.77 S 2013.38 E 5973147.82 N 666164.26 E 0.808 2986.22 Window Point 8792.75 31.850 145.000 7870.04 7929.15 2220.88 S 2020.84 E 5973136.88 N 666171.96 E 6.359 2999.34 8824.68 31.350 142.150 7897.24 7956.35 2234.34 S 2030.77 E 5973123.64 N 666182.18 E 4.932 3015.88 . 8918.32 28.820 136.390 7978.27 8037.38 2269.93 S 2061.29 E 5973088.73 N 666213.48 E 4.097 3062.63 8979.63 27.360 128.780 8032.38 8091.49 2289.46 S 2082.47 E 5973069.67 N 666235.08 E 6.306 3091.42 9072.74 26.500 122.700 8115.41 8174.52 2314.08 S 2116.64 E 5973045.79 N 666269.78 E 3.097 3133.00 9165.73 25.790 119.510 8198.89 8258.00 2335.26 S 2151.71 E 5973025.39 N 666305.30 E 1.693 3172.76 9259.71 25.250 113.570 8283.71 8342.82 2353.35 S 2187.88 E 5973008.10 N 666341.86 E 2.782 3211.13 9353.29 24.570 107.880 8368.60 8427.71 2367.30 S 2224.69 E 5972994.95 N 666378.97 E 2.661 3247.03 9382.39 24.290 106.970 8395.09 8454.20 2370.91 S 2236.17 E 5972991.60 N 666390.53 E 1.612 3257.70 9420.11 24.280 106.970 8429.47 8488.58 2375.44 S 2251.01 E 5972987.40 N 666405.46 E 0.027 3271.39 9454.67 19.890 106.430 8461.49 8520.60 2379.17 S 2263.45 E 5972983.93 N 666417.98 E 12.716 3282.83 9485.54 16.570 106.920 8490.81 8549.92 2381.94 S 2272.70 E 5972981.37 N 666427.29 E 10.766 3291.33 9520.33 12.620 110.580 8524.47 8583.58 2384.72 S 2281.01 E 5972978.77 N 666435.66 E 11.654 3299.17 9548.09 10.890 111 .150 8551.64 8610.75 2386.73 S 2286.30 E 5972976.87 N 666440.98 E 6.246 3304.33 9580.09 10.310 111.170 8583.10 8642.21 2388.86 S 2291.79 E 5972974.87 N 666446.52 E 1.813 3309.72 9609.88 10.090 109.600 8612.42 8671.53 2390.70 S 2296.73 E 5972973.14 N 666451.50 E 1.190 3314.51 9649.07 10.240 109.240 8650.99 8710.10 2393.00 S 2303.25 E 5972970.98 N 666458.07 E 0.416 3320.75 9672.19 10.220 108.290 8673.75 8732.86 2394.32 S 2307.14 E 5972969.75 N 666461.99 E 0.735 3324.43 9702.96 8.880 103.010 8704.09 8763.20 2395.71 S 2312.05 E 5972968.47 N 666466.92 E 5.199 3328.89 . 9733.59 7.390 98.240 8734.41 8793.52 2396.52 S 2316.30 E 5972967.74 N 666471.19 E 5.336 3332.47 9766.68 5.220 89.290 8767.30 8826.41 2396.81 S 2319.91 E 5972967.54 N 666474.81 E 7.180 3335.23 9797.79 4.730 81.920 8798.29 8857.40 2396.61 S 2322.60 E 5972967.79 N 666477.49 E 2.586 3336.98 9848.01 4.760 81.710 8848.34 8907.45 2396.02 S 2326.71 E 5972968.47 N 666481.59 E 0.069 3339.47 9953.28 4.550 80.140 8953.26 9012.37 2394.68 S 2335.14 E 5972970.00 N 666489.99 E 0.233 3344.49 10013.29 4.010 85.320 9013.11 9072.22 2394.10 S 2339.58 E 5972970.68 N 666494.42 E 1.106 3347.22 10050.00 4.010 85.320 9049.73 9108.84 2393.89 S 2342.14 E 5972970.94 N 666496.97 E 0.000 3348.88 Projected Survey All data is in Feet (US Survey) unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Global Northings and Eastings are relative to NAD27 Alaska State Planes, Zone 4. The Dogleg Severity is in Degrees per 100 feet (US Survey). Vertical Section is from Well Reference and calculated along an Azimuth of 135.000° (True). 20 October, 2004 - 10:01 Page 2 of 3 DrillQuest 3.03.06.006 Halliburton Sperry-Sun Survey Report for PBU_WOA E Pad - E-20A (mwd) Your Ref: API 500292057601 Job No. AKMW3317478, Surveyed: 14 October, 2004 BPXA North Slope Alaska Based upon Minimum Curvature type calculations, at a Measured Depth of 10050.00ft., The Bottom Hole Displacement is 3349.08fl., in the Direction of 135.626° (True). Comments Measured Depth (ft) Station Coordinates TVD Northings Eastin9s (ft) (ft) (ft) Comment . 8700.00 8767.00 10050.00 7849.47 7907.15 9108.84 2181.23 S 2209.77 S 2393.89 S 1994.74 E 2013.38 E 2342.14 E Tie On Point Window Point Projected Survey Survey tool proqram for E-20A (mwd) From Measured Vertical Depth Depth (ft) (ft) To Measured Vertical Depth Depth Survey Tool Description (ft) (ft) 0.00 8700.00 0.00 8700.00 7849.47 10050.00 7849.47 AK-1 BP _HG - GYD-CT-CMS (E-20) 9108.84 MWD Magnetic (E-20A (mwd)) . 20 October, 2004 - 10:01 Page 3 of 3 DrillQuest 3.03.06.006 TREE;=: 6" CMI uilt ... 1-14-1/2" X NIP, 10:::: ~ ~ GAS MANDRELS 113-3/8" CSG, 72#, L-80, 10:::: 4 3430 3416 19 3 6181 5705 33 2 7214 29 1 26 Minimum ::::: 141/2" 12.6# 13Cr80 I L-80 Tieback Liner I TOr OF 7" CSG, 47#, L-80, 10 =: 8.681" I PBTD 7" LNR, 26#, L-80, .0383 bpf, 10:::: 6.276" OA TE REV BY 12/17181 01/24/01 02/27101 02127/01 TJ$ Tieback Revision 10/16/04 \0. J liner I ¡ I I I I ¡ I ..~ PRUDHOE BAY UNIT WELL: E-20A PERMIT No: AP! No' BP . . :øi - tgcr WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Helen Warman 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 October 21,2004 RE: MWD Forrn.ation Evaluation Logs: E-20A, AK-MW-3317478 1 LDWG formatted Disc with verification listing. ltPI#: 50-029-20576-01 .:;þ I ?- ~ \)~ PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry· Sun Attn: Rob Kalish 6900 Arctic Blvd. Anchorage, Alaska 99518 BP Exploration (Alaska) Inc. Petro-Technical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Date /I}-for/ sia/~ . ~ . ø . AI,ASIiA. OILAlWD GAS CONSERVATION COMMISSION FRANK H. MURKOWSKI, GOVERNOR 333 W. 7'" AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Bill Isaacson Senior Drilling Engineer BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-661 Re: Prudhoe Bay E-20A BP Exploration (Alaska) Inc. Permit No: 204-189 Surface Location: 1743' SNL, 883' WEL, SEC. 06, T11N, R14E, UM Bottomhole Location: 4132' SNL, 1419' EWL, SEC. 05, T11N, R14E, UM Dear Mr. Isaacson: Enclosed is the approved application for permit to redrill the above development well. This permit to redrill does not exempt you from obtaining additional permits or approvals required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Please provide at least twenty-four (24) hours notice for a representative of the Commission to witness any required test. Contact the Commission's petroleum field inspector at (9 59- 7 ager). Si BY ORDER OF THE COMMISSION DATED this~day of September, 2004 cc: Department ofFish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. \I~ Cì A- If {z ~ I ¿..."''1 I STATE OF ALASKA · RECEfVEtfSKA i AND GAS CONSERVATION COrJllfSSION Þ ..,. PERMIT TO DRILL SEP 2 7 2004 20 MC 25.005 1 lÀn.:.inf ~ 1& f'!D~~ f'" iii Rec;rill 1b. Current Well Class 0 Exploratory iii Development Oil /' 0 Multiple Zone a. R~lt'd ur{QI víUJ . n8¥1ITJmISSlUn 0 Stratigraphic Test 0 Service 0 Development Gas 0 Single Zone 2. Operator Nan1~m:hÔrag€ 5. Bond: iii Blanket 0 Single Well 11. Well Name and Number: BP Exploration (Alaska) Inc. Bond No. 2S100302630-277 PBU E-20A / 3. Address: 6. Proposed Depth: 12. Field / Pool(s): P.O. Box 196612, Anchorage, Alaska 99519-6612 MD 10134./ TVD 9192' Prudhoe Bay Field I Prudhoe Bay 4a. Location of Well (Governmental Section): 7. Property Designation: Pool Surface: ADL 028304 ~ 1743' SNL, 883' WEL, SEC. 06, T11N, R14E, UM Top of Productive Horizon: 4132' SNL, 1419' EWL, SEC. 05, T11N, R14E, UM Total Depth: 4132' SNL, 1419' EWL, SEC. 05, T11N, R14E, UM ./ 4b. Location of Well (State Base Plane Coordinates): Surface: x- 6641 03 ~ y- 5975313 . Zone- ASP4 16. Deviated Wells: Kickoff Depth: 8800 / feet Maximum Hole Angle: 31 de~rees 8. Land Use Permit: 13. Approximate Spud Date: 10/01/04/ 9. Acres in Property: 2560 14. Distance to Nearest Property: 13,350 18. Casing Program: Size Casing 7" 7" Hole 8-112" 8-1/2" 6-1/8" Weight 26# 26# 12.6# SpeCiflCatiol\~ Grade Coupling L-80 BTC-M L-80 BTC-M L-80 IBT-M Length 752' 8611' 892' 10. KB Elevation 15. Distance to Nearest Well Within Pool (Height above GL): 60.5 feet E-39 is 585' away 17. Maximum Anticipated Pressures in psig (see 20 MC 25.035) Downhole: 3300'/ Surface: 2470 v Settil'1gDepth '. ... .....··i ....... Qûant~ QfCßI'I"\~i:lt Top« Bottom (c.f.Qrsacks) MD TVD MD TVD (including stage data) 8640' 7783' 9392' 8461' 210 cu ft Class 'G' Surface Surface 8640' 7783' 466 cu ft Class 'G', 163 cu ft 'G' 9242' 8319' 10134' 9192' 146 cu ft Class 'G' 4-1/2" 19. PRESENT WELL CONDITIQNSUMMARY (To bð completed for RecJrillANPRe4el'1trYOperâtibl1s) Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Effective Depth MD (ft): Depth TVD 10265 9079 None 10219 9045 Structural Conductor 110' 20" x 30" 8 cu yds Concrete 110' 110' Surface 2699' 13-3/8" 2627 cu ft Arcticset II 2699' 2699' Intermediate 9458' 9-5/8" 1292 cu ft Class 'G', 130 cu ft AS I 9458' 8465' Production Liner 1305' 7" 438 cu ft Class 'F' 8960' - 10265' 8058' - 9079' 20. Attachments iii Filing Fee, $100 0 BOP Sketch o Property Plat 0 Diverter Sketch perfOration Depth TVD (ft): 8902' - 8983' iii Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis o Seabed Report iii Drilling Fluid Program iii 20 MC 25.050 Requirements Perforation Depth MD (ft): 10027' - 10135' 21. Verbal Approval: Commission Representative: 22. I hereby certify that the foregoing is true and correct to the best of my knowledge. Printed Name Bill Isaacson Title Senior Drilling Engineer Date: Contact Thomas Schaefer, 564-4685 Phone API Number: Permit Approval ¡' See cover letter for 50- 029-20576-01-00 Date: 7' /;;;2f/0 Ý other requirements Samples Required DYes jQNo Mud Log Required 0 Yes gNo Hydrogen Sulfide Measures D Yes ~No Directional Survey Required ~es D No Other:Tes{- BD)t;. 0 Y;OO ¥";,. f.¿Y C,O. .5~¿'.ODO ~n'1't1 cfLr""t'tIv\.<.. 6\.fp~íj\Le(' LLI'l&t/v tl s 10'- 40(. \ Permit To Number: Conditions of Approval: APPROVED BY THE COMMISSION O~/Gr~iJAL ~~~ ~~ Date '2 'Ii ~Ub t In uplicate Approved Form 10-401 · . IWell Name: I E-20A Drill and Complete Plan Summary I Type of Well (service I producer I injector): I Sidetrack Producer Suñace Location: Estimated Target Location: Ivishak Zone 1A Bottom Hole Location: x = 664,103 Y =.5,975,313 1743' FNL 883' FEL Sec. 6, T11N, R14E Umiat ,./ X = 666,465.0 Y = 5,972,975 TVDss 8991.5' 4132' FNL 1419' FWL Sec. 5, T11N, R14E Umiat X = 666,465.0 Y = 5,972,975.0 TVDss 9131' 1147' FSL 3860' FEL Sec. 5, T11N, R14E Umiat 1 AFE Number: I PBD4P2291 1 1 Estimated Start Date: 110101/04 / I MD: 110,134' 1 I TVD: 19,192' I ' I Ria: 1 Nabors 2ES / I Operating days to complete: 114.42 I GL: 132.0' I I KB: 128.5' 1 I KBE: 160.5' I Well Design (conventional, slimhole, etc.): I Two String Sidetrack wI tieback I Objective: 1 Ivishak Zone 1 B <' Formation Markers Formation Tops (wp07) MD TVD TJB 9109 8196 TSGR 9392 8461 TSAD 9473 8536 TCGL 9647 8705 BCGL 9717 8775 23SB 9765 8823 22TS 9794 8852 21TS 9843 8901 TZ1 B 9934 8992 HOT 9963 9021 TDF 9975 9033 BSAD 10022 9080 TD Criteria: 100' perfs minimum below HOT TVDss Comments -8135 -8400 -8475 -8644 -8714 -8762 -8791 3300 psi -8840 -8931 -8960 -8972 -9019 Directional - Sperry wp09 KOP: I 8800' MD ,/ Maximum Hole Angle: -31.2° in the 8-1/2" intermediate section (at KOP) -20.6° in the 6-1/8" production section E-20A Permit to Drill ./ Page 1 . . E-31 , E-39, and K-09 pass BP's anti-collision policy major risk criteria against E-20A in both the intermediate and production interval. The minimum center to center distances are 1205' on E-31 , 585' on E-39, and 819' on K-09. MWD Standard Close Approach Wells: Survey Program: Casing/Tubing Pro~ram Hole Size Csg/Tbg WtlFt Grade Conn Length Top Btm O.D. MD/TVD MD/TVD 8-1/2" 7" 26# L-80 BTC-M 752' 8,640'17,783' 9,392'/8,461 ' 8-1/2" 7" Tieback 26# L-80 BTC-M 8,611' GL 8,640'/7,783' 6-1/8" 4-1/2" 12.6# L-80 IBT-M 892' 9,242'/8,317' 10,134'/9,192' Tubing 4-1/2" 12.6# 13cr-80 VAM Top 9,214 GL 9,242'/8,317' Mud Program Window Millinr Mud Properties: LSND Density (ppg) Viscosity I PV 10.6 50-60 12-18 Intermeaiate Mud Properties: LSND Den.s...~....~·tý (p. g) I Viscosity I PV /'10.6 38-45 15-22 \-- - ~ Production Mud Properties: FloPro Density (ppg) I Viscosity I PV 8.4 - 8.5 45-50 8-15 I Whip Stock Window 9-5/8",47# I YP I API FL I pH 30-40 4-6 9-9.5 I 8-1/2" hole section YP I API FL 22-28 2-4 pH 9-9.5 YP MBT 24-30 < 20 pH 9-9.5 APIFI 5-7 ... Logging Program 8-1/2" Intermediate: Sample Catchers - None Drilling: Dir/GRlPWD Open Hole: None Cased Hole: GR Prior to setting whipstock 6-1/8" Production: Sample Catchers - over entire interval, samples described Drilling: Dir/GRlRes/Neu/Dens Open Hole: None Cased Hole: Perforate Post-Rig, No other logs planned. Cement Proøram I Casing Size I 7" 26#, L-80 Intermediate Liner Basis: Lead: None Tail: Based on 80' shoe track, 592' of 7" X 8-1/2" open hole with 40% excess, 160' 7" X 9-5/8" lap, and 2~f 9-5/8" X 4" DP excess. Tail1.0Çl. 8640' MD (Top of Liner) I Total Cement'VOlume: 1 Tail 137 bbls, 210 ft3, 181 sacks Class G @ 15.8 ppg, 1.16 ft3/sack E-20A Permit to Drill Page 2 . . Casing Size 1 7" 26#, L-80 Tieback Liner I Basis: Lead: Based on gauge hole annular volume between 9 5/8" and 7" casing from tail slurry TOe (7640') to 4,400' MD (500' above Ugnu interval) Tail: Based on 80' shoe track and 1000' of gage hole annular volume between 9 5/8" and 7" casing from top of l"Gr9ling liner. Tail TOC:(164if I Total Cement Volume: I Lead 183 bbls, 466 ft3, 245 sacks Class G @ 13.5 ppg, 1.90 ft3/sack Tail 29 bbls, 163 ft3, 140 sacks Class G ~15.8 ppg, 1.16 ft3/sack I Casing Size 1 4.5" 12.6#, L-80 Production Liner Basis: Lead: None Tail: Based on ~tloe track, 742' of 4-1/2" X 6-1/8" open hole with 40% excess, 150' 4-1/2" X 7" Liner Lap, 20}Y/of 7" X 4" DP excess. Tail TO . 9,247MD (Top of Liner) / 1 Total Cement ~~: 1 Tail 126 bbls, 146 ft3, 126 sacks Class G @ 15.8 ppg, 1.16 ft3/sack Well Control Well control equipment consisting of 5000 psi working pressure pipe rams(2), blind/shear rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, BOPE and drilling fluid system schematics on file with the AOGCC. Intermediate Interval Maximum anticipated BHP Maximum surface pressure Kick tolerance Planned BOP test pressure 9-5/8" Casing Test Integrity Test - 8-1/2" hole Production Interval Maximum anticipated BHP Maximum surface pressure Kick tolerance Planned BOP test pressure 9-5/8" Casingn" Liner Test Integrity Test - 6-1/8" hole Planned completion fluids 3300psi @ 8300' TVDss (7.6 ppg EMW) 2470 psi (.10 psi/ft gas gradient to surface) Infinite with a 12.0 ppg FIT Rams test to 3,500 psi/250 psi. Annular test to 2,500 psi/250 psi 3500 psi surface pressure 12.0 ppg FIT after drilling 20' from middle of window v ./ 3300 psi @ 8791' TVDss (7.2 ppg EMW) 2420 psi (.10 psi/ft gas gradient to surface) Infinite with a 10.0 ppg FIT Rams test to 3,500 psi/250 psi. Annular test to 2,500 psi/250 psi 3500 psi surface pressure 10.0 ppg FIT after drilling 20' of new hole 8.5 ppg Seawater /7.2 ppg Diesel Disposal · No annular injection in this well. / · Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS-04. Any metal cuttings will be sent to the North Slope Borough. · Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for injection. Haul all Class I wastes to Pad 3 for disposal. E-20A Permit to Drill Page 3 . . Sidetrack and Complete Procedure Summary Pre-Ria Work: 1. Function all tubing hanger and 9 5/8" casing pack-off lock down screws and verify free movement. Completely back out and check each lock down screw for breakage; check one at a time. 2. RIU slick-line. Dummy off any live GLM. 3. Pull the tubing plug from the XN nipple at 8970'. 4. Fluid pack the tubing and the tubing X 9 5/8" annulus as necessary for abandonment plug. 5. RIU coil tubing. RIH and P&A the 7" liner and open perforations with at least -14bbls (10% excess) of 15.8ppg class 'G' slurry. Leave cement top at 9,800'md. 6. Pressure test against the cement plug to 3,500psi. 7. RIU slick-line. Drift the 5 %" tubing and tag TOe. Confirm sufficient clearance for the 5 %" tubing chemical cutter (4 7/16" O.D.) to the planned cut depth of -8,875'. 8. RIU E-line. RIH wI a 47/16" chemical cutter. Cut the 5 %" tubing -8,875' or in the center of the first joint above the packer. 9. Displace the well to clean seawater by circulating down the tubing through the tubing cut until clean seawater returns to surface. Freeze protect to -2,100' MD with diesel. 10. Bleed casing and annulus pressures to zero. 11. Set a BPV and test to 1000 psi from tubing annulus. Secure the well. Level the pad as necessary. RiQ Operations: 1. Mil RU Nabors rig 2ES. 2. Circulate out diesel freeze protection and diSPI~C. e well to seawater. Set p'PV/TWC. 3. Nipple down tree. Nipple up and test BOPE to ,50 si. Pull BPV/TWC. 4. Pull 5-1/2" tubing from above pre-rig cut at -8, . 5. RIH wI 8 %" gauge ring I junk basket with gamma raylCCL to top of tubing stub. Log casing from tubing stub to surface shoe at 2699' 6. Run USIT from tubing stub to surface. 7. MU 9 5/8", 47# bridge plug on e-line with CCL. RIH and set as required to allow for an 8800' whipstock KOP, (set as needed to avoid cutting a casing collar). POOH. RD e-line. 8. Pressure-test the 9 5/8" casing to 3,500psi for 30 minutes. Record test. ... ' ( 9. Perform top job on conductor x 13 3/8" annulus. T ~ s j D dol ctp P y f) 1I'l- , 10. P/U and RIH with 9 5/8"" Baker bottom-trip anchor whip stock assembly. Orient whip stock, as desired, and set on bridge plug. Shear off of whip stock. 11 11. Displace the well to 10.6 ppg LSND based milling fluid. Completely displace the well prior to beginning milling operations. 12. Mill window in 9 5/8" casing at ± 8,800' MD, plus approximately 20' beyond middle of window. ~. Circulate well bore clean. 13. Pull up into 9 5/8" casing and conduct an FIT to 12.0 ppg EMW. POOH. 14. M/U 8 %" Dir/GR assembly. RIH, kick off and drill the 8 1/2" intermediate section to the top of the Sag ../ River, per directional proposal. Circulate well clean, short trip to wipdow. POOH. 15. Run and cement a 7", 26.0#, L-80 intermediate drilling liner. / 16. Test the 9 5/8" casing X 7" liner to 3,500psi for 30 minutes. Reco.J.d the test. 17. Run and cement a 7" tieback from drilling liner to surface. ¿ /" 18. ND BOP, cut casing, set slips and packoff. 19. Install new tubing spool and NU and test BOPs. / 20. M/U 6 1/8" Dir/GRlNeu/Den/ABI assembly. RIH and drill out tieback float collar. 21. RIH to the landing collar. Test 7" liner and tieback to 3,500 psi for 30 min. 22. Drill out the 7" liner float equipment and cement to the shoe. 23. Displace the well to 8.4 ppg Flo-Pro drilling fluid. 24. Drill out the 7" shoe plus drill-20' new formation; pull up into the shoe and conduct an FIT to 10.0ppg ./ EMW. Drill ahead to TD as directed by wellsite geologist. 25. Circulate, short trip, spot liner running pill, POOH. 26. Run and cement a 4 %",12.6#, L-80 solid production liner. POOH UD all drill pipe. ...-/ 27. RIU and run 41/2", 12.6#, 13Cr-80 completion tubing. Land the tubing and RILDS. E-20A Permit to Drill Page 4 . . 28. Set a TWC and test to 1000 psi /' 29. Nipple down the BOPE. Nipple up the tree and test to 5,000psi. 30. Reverse circulate inhibited seawater to the packer depth. Set packer and individually test the tubing and annulus to 3,500psi 30 minutes. Record each test. 31. Shear the DCK valve and freeze protect the well to -2,100'. Secure the well. ~ 32. Rig down and move off. Post-Ria Work: 1. Pick perfs from lWD log. RIH with 2 7/8" perf guns and perforate ± 30'-40'. .-/ 2. Install well house and instrumentation 3. Mil RU slick-line. Pull the ball and rod I RHC plug from landing nipple below the production packer. Install gas lift valves. 4. POP well to test unit until cleaned up. E-20A Permit to Drill Page 5 . . E-20A Drilling Program Job 1: MIRU Hazards and Contingencies ~ E-20A is in the Southwest corner of E pad in between E-36 and E-28. E-20A has a center to center distance of 36' and 37' from E-28 and E-36 respectively. Both wells will not require well house removal or shut in for the rig move to E-20A. ~ E-Pad is!!ot_designated as an H2S site. Recent H2S data from the pad is as follows: ./ #1 Closest SHL #2 Closest SHL #1 Closest BHL #2 Closest BHL Well Name E-36 E-28A E-39A E-14A H2S Reading Oppm 10 ppm Oppm 10 ppm Date N/A 9/19/00 N/A N/A Maxium measured H2S measure on E-pad was from the E-01A on 6/18/04 with 10 ppm. / > Post Permit to Drill in the dog house and camp prior to spud Reference RP .:. "Drilling/Work-over Close Proximity Surface and Subsurface Wells Procedure" SOP Job 2: De-complete Well Hazards and Contingencies ~ Prior to shut-in in 2001, E-20 was producing intermittently with a high GOR of 17,000. Pre-Rig operations will include P&Aing the perforations in the 7" liner with cement. After the cement work and tubing cut, the well bore will be fluid packed, pressure tested and freeze protected. ~ A caliper log in May 2001 indicates good to poor tubing condition. A leak detection log confirms a tubing hole just below the wellhead. Wall loss is from 43-69% in the form of isolated pits, areas of corrosion, scattered pitting, lines of pits, lines of corrosion. No significant wall loss or 10 restrictions were recorded. ~ NORM test all retrieved well head and completion equipment. ~ Verify the hanger type and connection. Be prepared with necessary equipment to remove. Reference RP .:. "De-completions" RP Job 3: Window Mill Hazards and Contingencies ,/ ~ E-20 gamma ray log indicates that a KOP of 8800' should be in the middle of the Kingak shale and would put the mills cutting the window above any centralizers in the 9 5/8" string. Cementing reports indicate a calculated TOC of 6200' assuming 30% hole excess. The KOP may be adjusted slightly after running a GRlCCL log and before setting the whipstock to accommodate for actual rig depths and casing collars. ~ Once milling is complete, make sure all BOP equipment is operable. Wash out BOP stack to remove any metal cuttings, which may have settled there. E-20A Permit to Drill Page 6 . . Reference RP .:. "Whipstock Sidetracks" RP Job 4: Drill 8-1/2" Intermediate Hole Hazards and Contingencies ~ The intermediate section will kick off in the Kingak and TD at the top of Sag River. Since E-20A will start at <310 inclination and drop angle, 10.6 ppg mud weight will be adequate to maintain wellbore stability though the Kingak shale to interval TD. Follow all shale drilling practices to minimize potential problems. ~ The proposed well will cross one fault in this section: in Kingak with 15 ft throw at 9250 ft MD. Lost circulation is not anticipated. Follow the lost circulation decision tree should LC become problematic. ~ KICK TOLERANCE: In the worst-case scenario of 8.8 ppg pore pressure at the Sag River depth, a fracture gradient of 12.0 ppg at the 9-5/8" casing window, and 10.6 ppg mud in the hole, the kick tolerance is infinite. Reference RP .:. "Shale Drilling, Kingak and HRZ" RP .:. "Prudhoe Bay Directional Guidelines" .:. "Lubricants for Torque and Drag Management" RP .:. "Standard Operating Procedure: Leak-off and Formation Integrity Tests" Job 5: Install 7" Intermediate Liner and Liner Tieback Hazards and Contingencies ~ Avoid high surge pressures with controlled running speeds and by breaking circulation slowly. High surge pressures could lead to losses to the Sag River or exacerbate Kingak instability problems. ~ Ensure the liner top packer is set prior to POOH. This may require going through the setting process twice. Slack off with rotation to the maximum allowable down weight, as per Baker representative. Reference RP .:. "Intermediate Casing Cementing Guidelines" RP .:. "Running and Cementing a Drilling Liner" RP Job 6: Drill 6-1/8" Production Hole Hazards and Contingencies ~ The proposed E-20A well lies in a moderate to high risk province of the field for lost circulation at faults, and the risk of loss circulation events should be above average. Ten loss circulation events were encountered in the Ivishak section in 7 of the surrounding 23 wells. The proposed well will cross 2 faults in this hole section: near the top of Zone 3 with 30 ft throw at 9620 ft MD and in Zone 2B with 15 ft throw at 9960 ft MD. The position of these faults carry a relatively hi('h uncertainty. Also, the risk of encountering additional small, unmapped faults in the Midfield Graben environment should be noted. A large fault (55 ft throw) is present 175 ft north of the well E-20A Permit to Drill Page 7 . . at the target depth that approaches the well near TD. If this fault is encountered before planned TD then the well could be prematurely faulted into the Kavik shale. Another fault is present 175 ft south of the planned well. The polygon lines are hardlines to the north and south.The landing is targeted 3' above BSAD. If BSAD comes in higher than expected, geosteer up into Z1A after consultation with town geologist. ~ The three nearest wells to E-20A in this hole section, E-31 , E-39, and K-09, pass BP's anti- collision policy major risk criteria against E-20A. The minimum center to center distances are 1205' on E-31 , 585' on E-39, and 819' on K-09. ~ KICK TOLERANCE: In the worst-case scenario of 7.9 ppg pore pressure in the Ivishak, a fracture gradient of 9.5 ppg at the 7" casing shoe, and 8.3 ppg mud in the hole, the kick tolerance is Infinite. Reference RP .:. "Standard Operating Procedure: Leak-off and Formation Integrity Tests" .:. "Prudhoe Bay Directional Guidelines" .:. "Lubricants for Torque and Drag Management" RP Job 7: Install 4-1/2" Solid Production Liner Hazards and Contingencies ~ Differential sticking is a concern. The 8.4 ppg mud will be -540psi over balanced to the Ivishak formation. Minimize the time the pipe is left stationary while running the liner. ~ Reduce losses as much as feasible prior to cement job and pump excess cement as per loss rate. Evaluate alternative cement options based upon conditions. Hydraulic set packer may be required if losses exist prior to running liner. ~ Ensure the liner top packer is set prior to POOH. Slack off with rotation to the maximum allowable down weight, as per Baker representative. ~ Sufficient 4-1/2" liner will need to be run to extend -150' back up into the 7" intermediate liner. ~ Condition mud after casing is on bottom prior to pumping cement. A quality cement job is required for zonal isolation. Reference RPs .:. "Production Liner/Casing and Cementing Guidelines" .:. Schlumberger Cement Program Job 8: Run Completion Hazards and Contingencies ~ Diesel will be used to freeze protect the well. The diesel flash point is 1000 F. Diesel vapor pressure is - 0.1 psia at 1000 F. Reference RP .:. "Completion Design and Running" RP .:. "Tubing connections" RP .:. "Use of 13-Cr Tubulars" .:. "Running and Handling 13-Cr" E-20A Permit to Drill Page 8 . . Job 9: ND/NUlRelease Ria Hazards and Contingencies > No wells will require well house removal or shut-in for the rig move off of E-20A. See MIRU section for nearest well. > The well will be perforated with wireline after the rig has moved off. Reference RP .:. "Freeze Protecting an Inner Annulus" RP E-20A Permit to Drill Page 9 TREE. = 6" crvv WELLHEAD = Frv1C ACTUATOR = OTIS .~ >wumuwuuu KB. ELEV = 60.54' ..~w.w._,..~m~. BF. ELEV = 32.01' KOP = 3000' . .~m.~~ Max Angle = 42 @ 10100' Datum MD = 9971 ' ~m~mU~M..u '" Datum TVD = 8800' SS . E-20 / . 13-3/8" CSG, 72#, L-80, ID = 12.347" H t-----4 2699' Minimum ID = 3.725" @ 900S' 4-1/2" OTIS XN NIPPLE L I I 5-1/2" TBG, 17#, L-80, .0232 bpf, ID = 4.892" H 8890' ~ ~ TOP OF 4-1/2" TBG H 8923' I TOP OF 7" LNR H 8959' ¡-, 4-112" TBG, 12.6#, L-80, .01522 bpf, ID = 3.958" H 9052' I 9-5/8" CSG, 47#, L-80, ID = 8.681" H 9458' ~ PERFORA TION SUMMARY REF LOG: SWS BHCS ON 12/12/81 ANGLEAT TOP PERF: 42 @ 9930' Note: Refer to Production DB for historical perf data SIZE SPF INTffiVAL OpnlSqz DATE 2-5/8" 8 9930-9940 S 06/28188 2-5/8" 8 9954-9996 S 06128/88 2-5/8" 8 10011-10027 S 06/28/88 2-5/8" 4 10027-10046 0 07/14/88 2-518" 8 10046-10060 S 06/28/88 2-5/8" 4 10060-10114 0 07114/88 2-5/8" 4 10125-10135 0 07114/88 I PBTD H 10219' ~ 7" LNR, 26#, L-80, 0.0383 bpf, ID = 6.276" H 10262' DATE 12/17181 01124/01 02/27/01 1 0/04/01 REV BY COMMENTS ORIGINAL COMPlETION SIS-QAA CONVERTED TO CANV AS SIS-LG FINAL RNlTP CORRECTIONS DATE REV BY I SA.OTES: 2064' H5-1/2" OTIS SSSV LAND NIP, ID = 4.562" ST MD TVD ..1. 12 3006 2955 . 11 5150 4794 10 6302 5746 9 6453 5873 8 7076 6392 7 7227 6518 6 7616 6848 5 7754 6966 4 8152 7312 3 8307 7445 2 8612 7708 1 8760 7835 GAS LIFT MANDRELS DEV TYPE VLV LATCH PORT DATE 10 OTIS RA 35 OTIS RA 33 OTIS RA 33 OTIS RA 34 OTIS RA 34 OTIS RA 31 OTIS RA 31 OTIS RA 31 OTIS RA 31 OTIS RA 30 OTIS RA 31 OTIS RA 8826' H5-1/2" OTIS XA SLIDING SLV, ID = 4.562" 8890' 8921' f ~ ~ 8966' H4-1/2 OTIS X NIP, ID = 3.813" I 9008' H4-1/2" OTIS XN NIP, ID = 3.725" I 9051' H4-1/2" BAKER TBG TAIL I II. 9040' H ELMD TT LOGGED 07/14/88 9911' HMARKERJOINT I COMMENTS H BAKffi SABR PACKffi W/ SBR, ID=3.813" I -f5-1/2" X 4-112" XO I PRUDHOE BAY UNIT WELL: E-20 PERMIT No: 181-0390 API No: 50-029-20576-00 SEC 6, T11 N, R14E BP Exploration (Alaska) TREE =, 6" CrN WELLHEAD = FMC ~~~umuomu" ACTUATOR = OTIS u~__mu~~~mn.< KB. ELEV = 60.5' m.... ..._.... >. uu.>~~u.u,~~_ BF. ELEV = 28.5' KOP = 3000' < m....^~,mM~u~'".~.~ mum«u Max Angle = 42 @ 10,100' ............ .~~~,u,,~.."~m~~.uu,..n~. ,n.., Datum MD = 9971 ' .~u~u.'m'm~~^ Datum TVD = 8800' SS ~-20 Pre-rig / ~~~ ~)-I . Minimum ID = 3.725" @ 9008' 4112" OTIS X NIPPLE L - Ii] 113-318" CSG, 72#, L-80,ID= 12.347" H 2699' A I Pre-rig chem cut 5 1/2" tubing H 8, 87S' I I T<FOF 7" LI'R H 8959' ~ 14-1/2" TBG, 12.6.#, 13-CR, .0152 bpf, ID = 3.958"H 9052' ~ 9-518" CSG, 47#, L-80,ID=8.681" H 9458' ~ I Pre-rig cement P&A plug H 9800' I PBTD H 10219' I 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" H 10262' , ~~ [)A. TE 12/17/81 01/24/01 02/27/01 02/27/01 08127/04 REV BY SIS-LG SIS-LG TJS 00'vfv13\JTS ORIGINL\L OOfvA..EOON CXJN\IERTBJ TO c:At# AS RNL\L CORREC'TlCX\S A"e-rig work for Sidetrack [)A. TE REV BY I ~ 00'vfv13\JTS ~NOTES: 2064' H 5-1/2" OTIS SSSV LAND NIP, ID = 4.562" GA S LIFT MA NDRELS ST MD TVD DEV TYPE VLV LA TCH PORT DATE 12 3006 2955 10 OTIS RA 11 5150 4794 35 OTIS RA 10 6302 5746 33 OTIS RA 9 6453 5873 33 OTIS RA 8 7076 6392 34 OTIS RA 7 7227 6518 34 OTIS RA 6 7616 6848 31 OTIS RA 5 7754 6966 31 OTIS RA 4 8152 7312 31 OTIS RA 3 8307 7445 31 OTIS RA 2 8612 7708 30 OTIS RA 6, 1 8760 7835 31 OTIS RA 8826' H5-1/2" OTIS XA SLIDING SLV, ID = 4.562" 8890' 8921' H BAKER SABR PACKER WI SBR, ID=3.813" I H5-1/2" X 4-1/2" XO , 8966' H4-1/2 OTIS X NIP, ID = 3.813" I 9008' H4-1/2" OTIS XN NIP, ID = 3.725" I 9051' H4-112" BAKER TBG TAIL I 9040' H EUvDTTLCX3Gffi7/14/88 I 9911' H MA.~JOINT I A:RFœA TIQ\ SLJv1IAð.RY REFLOO: SVVS BI-CSON 12/12/81 A/'G...EA T T<F ÆRF: 42 @ 9930' N:>te: ~fer to A"oduction œ for historical perf data SIZE SA= IN'l'ffiV AL Q:>n/Sqz [)A. TE 2 518" 8 9930-9940 Sqz 06128/88 2 518" 8 9954-9996 Sqz 06128/88 2518" 8 10011-10027 Sqz 06128/88 2518" 4 10027-10046 Q>n 07/14/88 2518" 8 10046-10060 Sqz 06128/88 2518" 4 10060-10114 Cpn 07/14/88 2518" 4 10125-10135 Cpn 07/14/88 ffilDŒ SAY L.NT \NEil: &20 ~ f\b: XXX-XXXX AR f\b: 50-029-20576-00 SEC6, T11N, R14E 8P Exploration (Alaska) E-2fA Proposed ~ TREE:' = WELLHEAD = ." ~o.~.....~..."..~ 'n ACTUA TOR = ... m_"m~.,~,~~< KB. ELEV = SF. ELEV = KOP= Max Angle = ~~,~".~~,.~ Datum MD = ,.~.",. " DatumTVD= 6" CrN FMC OTIS HH 60~"5' 28.5' 8800' 31:5 @8820ó .. 10134' <~,~^"~ 9192' 113-3/8" CSG, 72#, L-80, ID = 12.347" -f 2699' ~ ITOC -f -4,400' Minimum ID = 3.725" @ 4-1/2" OTIS XN NIPPLE 141/2" 12.6# 13Cr80 BTC-M (3.958" ID) 17" 26# L-80 Tieback Liner (6.276" ID) -f 8640' 17" 26# L-80 Drilling Liner (6.276" ID) H 8640' 1 TOP OF 7" LNR H 8959' 9-5/8" CSG, 47#, L-BO, ID = 8.681" H 9458' Pre-rig cement F'&A plug H 9800' I PBTD H 10219' I 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" -f 10262' I- ~NOTES' 2100' -f4-1/2" X NIP, ID = 3.813" . GAS LIFT MANDRELS ST MD TVD DEV I TYPE IVLV LATCH PORT DATE 4 3414 3400 4.5" x 1" 3 6184 5700 4.5" x 1" 2 7964 7200 4.5" x 1" 1 9100 8188 4.5" x 1" i *: II J I 8800' H 9 5/8" Window I ~ I 9,182' H4 1/2" X Nipple (3.813" ID) 1 9,197' -f 7" x 4 1/2" Baker 5-3 Packer 1 9.217' -f4 1/2" X Nipple (3.813" ID) I 9,232' 1-i4 112" XN Nipple (3.725" ID) I 9,242' H4 1/2" WLEG 9242' I 9392' I I I I I ---1:. , I i II ~ I' ..¡ 4 1-141/2" Hanger /liner top packer I HT' 26# L-80 (6.276" ID) 0.383 bpf 1 i ~ ./ PBTD /.., 10,052' I 141/2" 12.6# (3.958" 10) 0.0152 bpf H 10,134' I - DATE REVSY COMMENTS DATE REV BY COMMENTS PRUDHOE SAY UNrr 12/17181 ORIGINAL COMPLETION WELL: E-20A 01/24101 CONVERTED TO CANVAS PERMrr No: xxx-xxxx 02/27/01 SIS-LG FINAL API No: 50-029-20576-00 02/27/01 SIS-LG CORRECTIONS SEC6, T11N, R14E 08/27/04 TJS Proposed Rig Sidetrack 09109/04 TJS Tieback Revision SF' Exploration (Alaska) . . BP BP Planning Report Company: Field: Site: Well: Wellpath: BPAmoco Prudt)oeBay PB E Pad E-20 Plan E-20A Date: 917/2004 Time: 10:29:40 Page: 1 C_rdiDate(NE) Reference: Well: E-20. True North Vertic:al (TVD) Referellce: 34: 20 11/27/1981 00:0060.5 Section (VS) Referellce: Well (0.ooN.0.00E,135.96AzI) Survey Cakulatioll Method: Minimum Curvature Db: Oracle Plall: E-20A wp09 2 string. . . 7" in SAG. Principal: Yes Date Composed: Versioll: Tied-to: 9/212004 55 From: Definitive Path Field: Prudhoe Bay North Slope UNITED STATES Map System:US State Plane Coordinate System 1927 Geo Datum: NAD27 (Clarke 1866) Sys Datum: Mean Sea Level Map Zone: Coordinate System: Geomagnetic Model: Alaska. Zone 4 Well Centre bggm2004 Site: PB E Pad TR-11-14 UNITED STATES: North Slope Site Position: Northing: From: Map Easting: Position Uncertainty: 0.00 ft Ground Level: 0.00 ft 5973160.88 ft 662538.97 ft Latitude: 70 19 Longitude: 148 40 North Reference: Grid Convergence: 59.134 N 53.054 W True 1.24 deg Well: E-20 Slot Name: 20 E-20 Well Position: +N/-S 2117.87 ft Northing: 5975313.00 ft Latitude: 70 20 19.961 N +E/-W 1610.41 ft Easting : 664103.00 ft Longitude: 148 40 6.017 W Position Uncertainty: 0.00 ft Casing Points MD TVD Diameter Hole Size Name ft ft in in 9392.37 8460.50 7.000 8.500 7" 10134.00 9191.22 4.500 6.500 4 1/2" Formations MD TVD Formadolls Lithology Dip ""gie DlPPirection ft ft deg deg 9392.37 8460.50 TSGR 0.00 0.00 9472.50 8535.50 TSAD 0.00 0.00 9647.07 8704.50 TCGL 0.00 0.00 9717.28 8774.50 BCGL 0.00 0.00 9765.28 8822.50 23SB 0.00 0.00 9794.28 8851.50 22TS 0.00 0.00 9843.28 8900.50 21TS 0.00 0.00 9934.28 8991.50 TZ1B 0.00 0.00 9963.28 9020.50 HOT 0.00 0.00 9975.28 9032.50 TDF 0.00 0.00 10022.28 9079.50 BSAD 0.00 0.00 Targets Map Map Name Description TVD +N/"8 +EI-W Northing Eastillg Dip. Dir. ft ft ft ft ft E-20A Fault 3 8965.50 -2698.23 2713.79 5972675.00 666875.00 70 1953.420 N 148 38 46.780 W -Polygon 1 8965.50 -2698.23 2713.79 5972675.00 666875.00 70 19 53.420 N 148 38 46.780 W -Polygon 2 8965.50 -3037.77 2916.42 5972340.00 667085.00 70 19 50.080 N 148 38 40.867 W -Plan out by 508.07 at 8965.50 -2389.30 2310.43 5972975.00 666465.00 70 19 56.459 N 148 3858.554 W E-20A Fault 4 8975.50 -2438.75 1599.12 5972910.00 665755.00 70 19 55.975 N 148 39 19.324 W -Polygon 1 8975.50 -2438.75 1599.12 5972910.00 665755.00 70 19 55.975 N 148 39 19.324 W -Polygon 2 8975.50 -2797.48 2221.47 5972565.00 666385.00 70 19 52.445 N 148 39 1.155 W -Polygon 3 8975.50 -3045.21 2571.15 5972325.00 666740.00 70 19 50.008 N 148 38 50.948 W -Polygon 4 8975.50 -3275.86 2826.18 5972100.00 667000.00 70 19 47.738 N 148 3843.504 W -Polygon 5 8975.50 -3045.21 2571.15 5972325.00 666740.00 70 19 50.008 N 148 3850.948 W -Polygon 6 8975.50 -2797.48 2221.47 5972565.00 666385.00 70 19 52.445 N 148 39 1.155 W -Plan out by 713.02 at 8975.50 -2389.30 2310.43 5972975.00 666465.00 70 1956.459 N 148 3858.554 W E-20A T1 rev 4 8991.50 -2389.30 231Q.43 5972975.00 666465.00 70 19 56.459 N 148 38 58.5~ W -Plan hit target E-20A Geo poly 8998.50 -2495.05 2343.12 5972870.00 666500.00 70 19 55.419 N 148 38 57.601 W Company: Field: Site: Well: WeIlpath: Targets BP AmOCO Prudhoe Bay PB E Pad E-20 Plan E-20A Name Description Dip. Dir. -Polygon 1 -Polygon 2 -Polygon 3 -Polygon 4 -Plan out by 110.69 at E-20A Fault 2 -Polygon 1 -Polygon 2 -Plan out by 484.03 at E-20A Fault 1 -Polygon 1 -Polygon 2 -Polygon 3 -Polygon 4 -Polygon 5 -Polygon 6 -Polygon 7 -Plan out by 729.06 at Plan Section Information . . BP BP Planning Report Date: 9/7/2004 Time: 10:29:40 Page: 2 Co-ordinate(NE) Reference: Well: E-20, True North ./ Vertical (TVD) Reference: 34 : 20 11/27/1981 00:0060.5 Section (VS) Reference: Well (0.ooN,O.ooE.135.96Azi) Survey Calculation Method: Minimum Curvature Db: Oracle Map Màp <- Latitude"""":> 4. ~'gi~de ---> TVD +N/-S +EI·W Northing E-.ting DegMlnSee DegrMln< See: ft ft ft ft ft 8998.50 -2495.05 2343.12 5972870.00 666500.00 70 19 55.419 N 148 38 57.601 W 8998.50 -2315.59 2141.99 5973045.00 666295.00 70 19 57.185 N 148 39 3.472 W 8998.50 -2236.92 2203.73 5973125.00 666355.00 70 19 57.958 N 148 39 1.669 W 8998.50 -2396.71 2420.30 5972970.00 666575.00 70 19 56.386 N 148 38 55.346 W 8998.50 -2389.30 2310.43 5972975.00 666465.00 70 1956.459 N 148 38 58.554 W 9012.50 -2214.37 1859.12 5973140.00 666010.00 70 19 58.181 N 148 3911.731 W 9012.50 -2214.37 1859.12 5973140.00 666010.00 70 19 58.181 N 148 39 11.731 W 9012.50 -2633.71 2280.07 5972730.00 666440.00 70 19 54.056 N 148 38 59.443 W 9012.50 -2389.30 2310.43 5972975.00 666465.00 70 1956.459 N 148 38 58.554 W 9025.50 -1941.57 1735.05 5973410.00 665880.00 70 20 0.864 N 148 39 15.352 W 9025.50 -1941.57 1735.05 5973410.00 665880.00 70 20 0.864 N 148 39 15.352 W 9025.50 -1990.43 2139.10 5973370.00 666285.00 70 20 0.383 N 148 39 3.554 W 9025.50 -2185.65 2374.90 5973180.00 666525.00 70 19 58.462 N 148 38 56.670 W 9025.50 -2540.66 2827.27 5972835.00 666985.00 70 19 54.969 N 148 38 43.465 W 9025.50 -2762.52 3137.51 5972620.00 667300.00 70 19 52.786 N 148 38 34.409 W 9025.50 -2540.66 2827.27 5972835.00 666985.00 70 19 54.969 N 148 3843.465 W 9025.50 -1990.43 2139.10 5973370.00 666285.00 70 20 0.383 N 148 39 3.554 W 9025.50 -2389.30 2310.43 5972975.00 666465.00 70 19 56.459 N 148 38 58.554 W MD Inel Azim TVD +N/-S +EI~W DLS Build Turn TFO fI deg deg fI fI ft deg/100f1 deg/1()Of1 deg/1()Of1 (eg 8800.00 31.27 147.90 7921.31 -2261.26 2035.92 0.00 0.00 0.00 0.00 8820.00 31.56 143.33 7938.38 -2269.86 2041.81 12.00 1.45 -22.86 -85.00 9267.13 20.61 97.03 8343.28 -2374.67 2191.72 5.00 -2.45 -10.36 -137.99 9476.61 20.61 97.03 8539.35 -2383.69 2264.92 0.00 0.00 0.00 0.00 9734.28 0.00 97.00 8791.50 -2389.30 2310.43 8.00 -8.00 0.00 180.00 9934.28 0.00 97.00 8991.50 -2389.30 2310.43 0.00 0.00 0.00 0.00 E-20A T1 rev 4 10134.28 0.00 97.00 9191.50 -2389.30 2310.43 0.00 0.00 0.00 97.00 Survey MD Incl Azim TVD Sy" TVD NlS E/W DLS fI deg (eg ft ft fI ft deg/100ft 8800.00 31.27 147.90 7921.31 7860.81 -2261.26 2035.92 0.00 5973096.99 666187.78 Start Dir 12/10 8820.00 31.56 143.33 7938.38 7877.88 -2269.86 2041.81 12.00 5973088.53 666193.85 Start Dir 5/100 8825.00 31.38 143.01 7942.65 7882.15 -2271.95 2043.37 5.00 5973086.47 666195.46 MWD 8850.00 30.46 141.35 7964.09 7903.59 -2282.10 2051.25 5.00 5973076.50 666203.56 MWD 8875.00 29.57 139.60 7985.74 7925.24 -2291.74 2059.20 5.00 5973067.03 666211.72 MWD 8900.00 28.70 137.75 8007.58 7947.08 -2300.88 2067.24 5.00 5973058.07 666219.95 MWD 8925.00 27.86 135.80 8029.60 7969.10 -2309.52 2075.35 5.00 5973049.62 666228.25 MWD 8950.00 27.05 133.74 8051.78 7991.28 -2317.63 2083.53 5.00 5973041.68 666236.60 MWD 8975.00 26.27 131.56 8074.12 8013.62 -2325.23 2091.77 5.00 5973034.26 666245.01 MWD 9000.00 25.52 129.27 8096.61 8036.11 -2332.31 2100.08 5.00 5973027.37 666253.47 MWD 9025.00 24.81 126.84 8119.24 8058.74 -2338.87 2108.45 5.00 5973021.00 666261.98 MWD 9050.00 24.14 124.29 8142.00 8081.50 -2344.89 2116.87 5.00 5973015.16 666270.53 MWD 9075.00 23.52 121.61 8164.86 8104.36 -2350.39 2125.34 5.00 5973009.85 666279.12 MWD 9100.00 22.95 118.79 8187.84 8127.34 -2355.35 2133.86 5.00 5973005.08 666287.75 MWD 9125.00 22.42 115.85 8210.90 8150.40 -2359.78 2142.43 5.00 5973000.84 666296.41 MWD 9150.00 21.96 112.78 8234.05 8173.55 -2363.66 2151.03 5.00 5972997.14 666305.09 MWD 9175.00 21.55 109.59 8257.27 8196.77 -2367.01 2159.66 5.00 5972993.98 666313.80 MWD 9200.00 21.21 106.29 8280.55 8220.05 -2369.82 2168.33 5.00 5972991.36 666322.52 MWD 9225.00 20.93 102.90 8303.88 8243.38 -2372.09 2177.02 5.00 5972989.29 666331.26 MWD 9250.00 20.72 99.44 8327.25 8266.75 -2373.81 2185.74 5.00 5972987.76 666340.01 MWD 9267.13 20.61 97.03 8343.28 8282.78 -2374.67 2191.72 5.00 5972987.02 666346.01 End Dir : 9267 9275.00 20.61 97.03 8350.65 8290.15 -2375.01 2194.47 0.00 5972986.75 666348.77 MWD 9300.00 20.61 97.03 8374.05 8313.55 -2376.09 2203.20 0.00 5972985.86 666357.52 MWD 9325.00 20.61 97.03 8397.45 8336.95 -2377.17 2211.94 0.00 5972984.98 666366.28 MWD . . BP BP Planning Report Company: BPAmoco Date: 91712004 Tùne: 10:29:40 Pagê: 3 Field: Prudhoe Bay Ct)"'OrdiJaate(i'lE)R~'ren~: VVEil/:iE:2(),l'l'IJe.N<>rtI;I Site: PB E Pad vertical (TVD) Reference: 34 : 20 11127/1981>()():OO/)().5 Wen: E"20 s.etion (VS)Reference: VVel/(0,09N,O;()()'t,135.96tØ) WeHpath: Plan E~20A Survey Calcnlation Mètbod: Minimum Curvatl:lreQb: Oracle Survey MD loci ADm TV» Sys TV» N/S EIW DLS MapN ft deg deg ft ft ft ft dêgl100ft ft 9350.00 20.61 97.03 8420.84 8360.34 -2378.24 2220.68 0.00 5972984.09 666375.04 MWD 9375.00 20.61 97.03 8444.24 8383.74 -2379.32 2229.41 0.00 5972983.21 666383.79 MWD 9392.37 20.61 97.03 8460.50 8400.00 -2380.07 2235.48 0.00 5972982.59 666389.87 7" 9400.00 20.61 97.03 8467.64 8407.14 -2380.40 2238.15 0.00 5972982.32 666392.55 MWD 9425.00 20.61 97.03 8491.04 8430.54 -2381.47 2246.88 0.00 5972981.44 666401.30 MWD 9450.00 20.61 97.03 8514.44 8453.94 -2382.55 2255.62 0.00 5972980.55 666410.06 MWD 9472.50 20.61 97.03 8535.50 8475.00 -2383.52 2263.48 0.00 5972979.75 666417.94 TSAD 9475.00 20.61 97.03 8537.84 8477.34 -2383.63 2264.35 0.00 5972979.67 666418.82 MWD 9476.61 20.61 97.03 8539.35 8478.85 -2383.69 2264.92 0.00 5972979.61 666419.38 Start Dir 8/100 9500.00 18.74 97.03 8561.37 8500.87 -2384.66 2272.73 8.00 5972978.82 666427.22 MWD 9525.00 16.74 97.03 8585.18 8524.68 -2385.59 2280.29 8.00 5972978.05 666434.80 MWD 9550.00 14.74 97.03 8609.24 8548.74 -2386.42 2287.03 8.00 5972977.37 666441.54 MWD 9575.00 12.74 97.03 8633.52 8573.02 -2387.15 2292.92 8.00 5972976.77 666447.45 MWD 9600.00 10.74 97.03 8658.00 8597.50 -2387.77 2297.97 8.00 5972976.26 666452.51 MWD 9625.00 8.74 97.03 8682.64 8622.14 -2388.28 2302.17 8.00 5972975.83 666456.72 MWD 9647.07 6.98 97.03 8704.50 8644.00 -2388.65 2305.16 8.00 5972975.53 666459.72 TCGL 9650.00 6.74 97.03 8707.41 8646.91 -2388.70 2305.51 8.00 5972975.50 666460.07 MWD 9675.00 4.74 97.03 8732.28 8671.78 -2389.00 2307.99 8.00 5972975.24 666462.56 MWD 9700.00 2.74 97.03 8757.23 8696.73 -2389.20 2309.61 8.00 5972975.08 666464.18 MWD 9717.28 1.36 97.03 8774.50 8714.00 -2389.28 2310.23 8.00 5972975.02 666464.80 BCGL 9725.00 0.74 97.03 8782.22 8721.72 -2389.30 2310.37 8.00 5972975.00 666464.94 MWD 9734.28 0.00 97.00 8791.50 8731.00 -2389.30 2310.43 8.00 5972975.00 666465.00 End Dir : 9734 9750.00 0.00 97.00 8807.22 8746.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9765.28 0.00 97.00 8822.50 8762.00 -2389.30 2310.43 0.00 5972975.00 666465.00 23SB 9775.00 0.00 97.00 8832.22 8771.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9794.28 0.00 97.00 8851.50 8791.00 -2389.30 2310.43 0.00 5972975.00 666465.00 22TS 9800.00 0.00 97.00 8857.22 8796.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9825.00 0.00 97.00 8882.22 8821.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9843.28 0.00 97.00 8900.50 8840.00 -2389.30 2310.43 0.00 5972975.00 666465.00 21TS 9850.00 0.00 97.00 8907.22 8846.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9875.00 0.00 97.00 8932.22 8871.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9900.00 0.00 97.00 8957.22 8896.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9908.28 0.00 97.00 8965.50 8905.00 -2389.30 2310.43 0.00 5972975.00 666465.00 E-20A Fault 3 9918.28 0.00 97.00 8975.50 8915.00 -2389.30 2310.43 0.00 5972975.00 666465.00 E-20A Fault 4 9925.00 0.00 97.00 8982.22 8921.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9934.28 0.00 97.00 8991.50 8931.00 -2389.30 2310.43 0.00 5972975.00 666465.00 E-20A T1 rev 4 9941.28 0.00 97.00 8998.50 8938.00 -2389.30 2310.43 0.00 5972975.00 666465.00 E-20A Gee poly 9950.00 0.00 97.00 9007.22 8946.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9955.28 0.00 97.00 9012.50 8952.00 -2389.30 2310.43 0.00 5972975.00 666465.00 E-20A Fault 2 9963.28 0.00 97.00 9020.50 8960.00 -2389.30 2310.43 0.00 5972975.00 666465.00 HOT 9968.28 0.00 97.00 9025.50 8965.00 -2389.30 2310.43 0.00 5972975.00 666465.00 E-20A Fault 1 9975.00 0.00 97.00 9032.22 8971.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 9975.28 0.00 97.00 9032.50 8972.00 -2389.30 2310.43 0.00 5972975.00 666465.00 TDF 10000.00 0.00 97.00 9057.22 8996.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 10022.28 0.00 97.00 9079.50 9019.00 -2389.30 2310.43 0.00 5972975.00 666465.00 BSAD 10025.00 0.00 97.00 9082.22 9021.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 10050.00 0.00 97.00 9107.22 9046.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 10075.00 0.00 97.00 9132.22 9071.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 10100.00 0.00 97.00 9157.22 9096.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 10125.00 0.00 97.00 9182.22 9121.72 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD 10134.00 0.00 97.00 9191.22 9130.72 -2389.30 2310.43 0.00 5972975.00 666465.00 4 1/2" 10134.28 ,- 0.00 97.00 9191.50 9131.00 -2389.30 2310.43 0.00 5972975.00 666465.00 MWD TERRIE L HUBBLE BP EXPLORATION AK INC PO BOX 196612 MB 7-5 ANCHORAGE, AK 99519-6612 89·6/1252 150 DATE Cff,Q.7.0Lf 6~b¡~o'FHE ~f.Q 4- ~I /'â~ IOOòD Qf\O ~ ~ \rÓJ fítm ^~~~"-~RS ~~:~;::::~'l~'~~:6;'k' 4Ä/I;' t /J. ~J L /J M MEMO 620ft ,. 10v "Vt ¿7'í. f-lUtrU CY-- "Mastercard Check" . I: ~ 25 2000bOI:~~ ......'b 2 27..1. 55b"· 0 .50 . . . TRANSMIT AL LETTER CHECK LIST CIRCLE APPROPRIATE LETTER/P ARAGRAPHS TO BE INCLUDED IN TRANSMITTAL LETTER WELL NAME ßtr E- 2ðrl PTD# ;2OY-/BC¡ / Development Service CHECK WßA T APPLIES ADD-ONS (OPTIONS) MULTI LATERAL (1f API Dumber last two. (2) digits are between 60-69) Exploration Stratigraphic ~~CLUEn Tbe permit is for a new weHboresegment of existing wen·. . Permit No, .' API No. Production. sbould continue to be reponed as a function 'of tbe original API number. stated above. BOLE )n accordance witb 20 AAC 25.005(f), an records, data and logs acquired for tbe pilot bole must be dearly differentiated 'in botb name (name on permit plus PH) and API Dumber (50 70/80) from records, data and Jogs acquired for we)) (name on permit). PILOT (PH) SPACING EXCEPTJON DRY DITCH SAMPLE Tbe permit is approved subject ·to fuD compliance witb 20 AAC 25..055~ Approval to perforate and produce is contingent upon issuance of ~ conservation order approving a spacing e:Jception. (Company Name) assumes tbe liability of any protest to tbe spacing .e:Jception tbat may occur. AU dry ditcb sample sets submitted to the CommissioIJ must be in no greater ·than 30' sample inlen'als from below tbe permafrost or from where samples are first caught and ] 0' sample iJile:r=vals through target zones. D D Well bore seg Annular Disposal On Program DEV On/Off Shore 11650 _ Well Name: PRUDHOE BAY UNIT E-20A DEV / PEND GeoArea 890 Unit 341D =Irudhoe Ojl PoolgOllern.ed by COllserva!ion Order - =IrudhoeBay . ClasslType YJ:¡s YJ:¡s YJ:¡s Yes YJ:¡s YJ:¡s YJ:¡s Yes Yes YJ:¡s Yes Yes Yes .NA .NA NA Initial 640150 PRUDHOE BAY, PRUDHOE OIL- INC Field & Pool Company BP EXPLORATION (ALASKA) Þ_eUTJil fee attache~ b.ound_a[}' . _v!:~ul Wel 2 3 4 5 6 7 8 9 PTD#: 2041890 Administration in. commJ:¡ots) (for .0Jer_ator only affected party .OJer_ator bas.appropriate.b.ond tnJorce. þJ:¡cmil co_nservaiion order Permit administratille.approvaJ Can permit be approved before 15-day wait WeJIJQcaled wi_thin area éllld_strata .authorized by_lnjectioo Ord.er # (PuUOfJ .AlI wells. withtn Jl4.mile.area.of reyiew jdJ:¡otified (For. ~ervjce well only). . . Pre-produ.ced injector; ~urationof pre-production less. than 3 months. (fQr_servtce wel been .is.sued. for. tbis project c_ao be tssl!ed wjtbout c.ao be tSSl!ed wjtbout 10 11 12 13 14 15 16 17 Date 9/28/2004 Appr SFD onJy) - - NA Nab.ors2.ES, 9/27)20_04. Sidetrack. Max MW_1 O.6ppg. . .MSF> 2470 psi.. Test 103500 psi NA NA NA .NA YJ:¡s Yes Yes Yes .Y.es NA YJ:¡s Yes Yes Yes YJ:¡s No. NA - ACMPF:indjng .of Con.si.steOGyhas .Coodu.ctor stringprQvided .S.wfacecasing.protec.ts. all known. USOWs CMT. vol adeQl!ate. to circ.ulate_ on _conductor & su.rf. C$g .CMT. v.ol adeQu_ate_ to tie-in long .string to.surf csg _CMT. will CoyeraJl\<nownproductiye bQrizon.s _Lease _number appropriate .U.nique well.n.al)1J:¡.and Ol!l1Jb.er Well IQcatJ:¡d ina. defined -pool. "'a' Joeated pr.oper øistance from driJling unit locat~ prpper .distance_ from otber wells. cientacreage.ayailable ¡ndrilliog unjt vi¡;¡ted, js weJlbore plaUncJu.ded _C.asing designs ad_equa_te fpr ç,T.. B&_permafrost .Mequate.tankage.or re_serve pit _ Itare-drilL hasa. 10:-403 for abandOllment beJ:¡O apprQved AøequateweJlbore ~eparatjo.n -proposed. . . . . . Itdjverter required, does it meet reguJaJions _ _ .Drilling fluid. program schematic & eCluip list adequate to (put psig tncomments) C.hokemanjfold complie~ w/API. RF>-53 (May 84) Work will OCCUr withoul.operatjon .sbutdown _ Is pres.ence. of H2S gas_ prQbable. _ Mecha_niealcondjtion of wells within ,ð.OR yerified (for_ s.ervjce well _BOPEs,d_othey meet regulation BOPE.press raiiog ap-proPriate;test 21 122 23 24 25 26 27 Date 28 9/28/2004 29 130 '31 32 33 34 18 19 20 Engineering Appr WGA - Nolan H2S pad. - - Nearest offset weJls measureO. -10-ppmH2S~ maxH2.Smeasured Oil E-pad_ is 1Q ppm on. 6/1/04. Antiçipated (eservojr.pressure is ],2 p-pg .EMW;will.be _drilled witb 8A.- 8..5 -ppg mud. Yes Yes NA NA NA - Ollly) pJ:¡rl1Jit. can be issued w/o hydrogen. s.ulfide meaS_U(es .D_ata_preseoted Oil pote_ntial overpres.sure _ZOlles. _ .Seismic.analysjs. of shaJlow gas.zpnes _ . .Seabed _condjtjoo survey (if off-shpre) _ _ Conta.ct narnelphOlle_ forweekly progresueports [explorato[}' .onlyt 35 36 Date 37 9/28/2004138 39 Geology Appr SFD Date ~/dý Public 5J'~"" Date Engineering Commissioner Date: 1/30/~ Geologic Commissioner: bfs . Well History File APPENDIX . Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize thís Ci3tegory of information. . . cf{tYf-/81 Sperry-Sun Drilling Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Wed Oct 20 14:58:43 2004 ~ ) )J6~ j Reel Header Service name.. ...........LISTPE Date.....................04/10/20 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name............. ...UNKNOWN Continuation Number......01 Previous Reel Name.......UNKNOWN Comments.................STS LIS Writing Library. Scientific Technical Services Tape Header Service name........ ." ..LISTPE Date......... .... ........04/10/20 Origin................. ..STS Tape Name................UNKNOWN Continuation Number......01 Previous Tape Name.......UNKNOWN Comments.... ...... .......STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS # WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: # JOB DATA E-20A 500292057601 BP Exploration (Alaska) Inc. Sperry-Sun Drilling Services 20-0CT-04 JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 1 MW0003317478 J. SACK J. RALL MWD RUN 2 MW0003317478 J. SACK J. RALL MWD RUN 3 MW0003317478 J. SACK J. RALL JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 4 MW0003317478 J. PITCHER J. RALL # SURFACE LOCATION SECTION: TOWNSHI P: RANGE: FNL: FSL: FEL: FWL: ELEVATION (FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: 6 11 14 1743 883 59.11 30.36 # WELL CASING RECORD 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING OPEN HOLE BIT SIZE (IN) 8.500 6.125 CASING SIZE (IN) 9.625 7.000 DRILLERS DEPTH (FT) 8767.0 9425.0 # REMARKS: . . 1. ALL DEPTHS ARE BIT DEPTHS UNLESS OTHERWISE NOTED. THESE DEPTHS ARE MEASURED DEPTH (MD). 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH (TVD). 3. E-20A WAS DRILLED FROM A WHIPSTOCK IN THE E-20 WELLBORE. THE TOP OF THE WHIPSTOCK WAS POSITIONED AT 8767'MD AND THE BOTTOM WAS AT 8783'MD. 4. MWD RUN 1 COMPRISED DIRECTIONAL ONLY. THE PURPOSE OF THIS RUN WAS TO POSITION THE WHIPSTOCK, MILL THE WINDOW, AND DRILL A BIT OF RAT HOLE. SROP DATA ARE PRESENTED. 5. MWD RUN 2 COMPRISED DIRECTIONAL WITH DUAL GAMMA RAY (DGR) UTILIZING GEIGER- MUELLER TUBE DETECTORS AND PRESSURE WHILE DRILLING (PWD). UPHOLE MAD SGRC DATA ACQUIRED AFTER REACHING TD OF RUN 2 WERE MERGED WITH RUN 2 MWD DATA. 6. MWD RUNS 3 & 4 COMPRISED DIRECTIONAL WITH DGR: ELECTROMAGNETIC WAVE RESISTIVITY PHASE-4 (EWR4); STABILIZED LITHO-DENSITY (SLD); AND COMPENSATED THERMAL NEUTRON (CTN). 7. LOG AND DIGITAL DATA (LDWG) ONLY WERE SHIFTED TO A SCHLUMBERGER OPEN-HOLE GAMMA RAY RUN ON 12 DECEMBER 1981. THESE LOG DATA WERE PROVIDED BY K.COONEY (SIS/BP) ON 19 OCTOBER 2004. LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTH REFERENCES. 8. MWD RUNS 1 - 4 REPRESENT WELL E-20A WITH API#: 50-029-20576-01. THIS WELL REACHED A TOTAL DEPTH (TD) OF 10050'MD/9109'TVD. SROP SMOOTHED RATE OF PENETRATION WHILE DRILLING. SGRC SMOOTHED GAMMA RAY COMBINED. SEXP SMOOTHED PHASE SHIFT-DERIVED RESISTIVITY (EXTRA-SHALLOW SPACING) . SESP = SMOOTHED PHASE SHIFT-DERIVED RESISTIVITY (SHALLOW SPACING) . SEMP = SMOOTHED PHASE SHIFT-DERIVED RESISTIVITY (MEDIUM SPACING) . SEDP = SMOOTHED PHASE SHIFT-DERIVED RESISTIVITY (DEEP SPACING) . SFXE = SMOOTHED FORMATION EXPOSURE TIME - DEEP RESISTIVITY. TNPS = SMOOTHED THERMAL NEUTRON POROSITY (SANDSTONE MATRIX, FIXED HOLE SIZE). CTFA SMOOTHED AVERAGE OF FAR DETECTOR'S COUNT RATE. CTNA = SMOOTHED AVERAGE OF NEAR DETECTOR'S COUNT RATE. SBD2 = SMOOTHED BULK DENSITY-COMPENSATED (LOW-COUNT BIN) . SC02 = SMOOTHED STANDOFF CORRECTION (LOW-COUNT BIN). SNP2 = SMOOTHED NEAR-DETECTOR-ONLY PHOTOELECTRIC ABSORPTION FACTOR (LOW-COUNT BIN) . SLIDE = NON-ROTATED INTERVALS. SLDSLIDE = NON-ROTATED INTERVALS REFLECTING SENSOR-TO-BIT DISTANCE. PARAMETERS UTILIZED FOR POROSITY LOG PROCESSING: HOLE SIZE: 6.125" MUD WEIGHT: 8.5 PPG MUD SALINITY: 3000 - 4000 FORMATION WATER SALINITY: PPM CHLORIDES 10,990 PPM CHLORIDES . . FLUID DENSITY: 1.0 Glce MATRIX DENSITY: 2.65 GICC LITHOLOGY: SANDSTONE $ File Header Service name... ..........STSLIB.OOl Service Sub Level Name... Version Number...........l.0.0 Date of Generation.......04/10/20 Maximum Physical Record..65535 File Type............... .LO Previous File Name.......STSLIB.OOO Comment Record FILE HEADER FILE NUMBER: EDITED MERGED MWD Depth shifted and DEPTH INCREMENT: # FILE SUMMARY PBU TOOL CODE GR ROP DRHO NPHI FCNT RHOB PEF NCNT RPX RPS RPM RPD FET $ 1 clipped curves; all bit runs merged. .5000 START DEPTH 8534.5 8776.5 9385.5 9385.5 9385.5 9385.5 9385.5 9385.5 9408.0 9408.0 9408.0 9408.0 9408.0 STOP DEPTH 10002.5 10057.5 9989.5 9975.5 9976.5 9989.5 9989.5 9975.5 10009.5 10009.5 10009.5 10009.5 10009.5 # BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) --------- EQUIVALENT UNSHIFTED DEPTH --------- BASELINE DEPTH 8534.5 8537.0 8539.5 8543.0 8545.5 8548.5 8557.5 8561.0 8565.0 8568.5 8573.0 8576.5 8578.0 8579.5 8583.5 8588.0 8592.5 8594.0 8596.5 8598.5 8600.0 8607.0 8611. 5 8614.5 8618.5 8625.5 8628.5 8634.0 8637.0 8641. 5 8644.5 8649.5 8651. 0 8661. 5 GR 8520.0 8522.5 8526.5 8528.5 8533.0 8535.5 8544.0 8547.0 8552.5 8555.0 8558.5 8563.0 8564.0 8566.5 8570.5 8575.0 8579.5 8581.5 8584.0 8585.5 8587.0 8595.0 8599.5 8602.0 8606.5 8613.5 8616.5 8621. 0 8624.0 8628.5 8631.0 8637.5 8639.0 8650.5 . . 8668.5 8677.0 8682.0 8683.5 8685.0 8687.0 8688.5 8711. 0 8715.5 8723.0 8729.0 8734.5 8738.5 8742.0 8753.5 8760.5 8762.5 8764.5 8767.0 8772.0 10057.5 $ 8657.5 8665.0 8669.0 8670.0 8672.0 8675.0 8677.5 8699.0 8702.5 8710.0 8714.5 8720.5 8728.0 8734.5 8744.0 8750.5 8753.0 8755.0 8757.0 8764.0 10049.5 # MERGED DATA SOURCE PBU TOOL CODE MWD MWD MWD MWD $ BIT RUN NO 1 2 3 4 MERGE TOP 8768.5 8795.0 9425.0 9689.0 MERGE BASE 8795.0 9425.0 9689.0 10049.5 # REMARKS: MERGED MAIN PASS. $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction.................Down Optical log depth units...........Feet Data Reference Point........ ......Undefined Frame Spacing.....................60 .1IN Max frames per record.............Undefined Abs en t va 1 ue. . . . . . . . . . . . . . . . . . . . . . - 999 Depth Uni ts. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD FT/H 4 1 68 4 2 GR MWD API 4 1 68 8 3 RPX MWD OHMM 4 1 68 12 4 RPS MWD OHMM 4 1 68 16 5 RPM MWD OHMM 4 1 68 20 6 RPD MWD OHMM 4 1 68 24 7 FET MWD HOUR 4 1 68 28 8 NPHI MWD PU-S 4 1 68 32 9 FCNT MWD CNTS 4 1 68 36 10 NCNT MWD CNTS 4 1 68 40 11 RHOB MWD G/CM 4 1 68 44 12 DRHO MWD G/CM 4 1 68 48 13 PEF MWD BARN 4 1 68 52 14 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 8534.5 10057.5 9296 3047 8534.5 10057.5 ROP MWD FT/H 0.15 1374.1 54.5356 2563 8776.5 10057.5 GR MWD API 15.19 390.32 89.6425 2937 8534.5 10002.5 RPX MWD OHMM 1. 06 964.53 24.1395 1204 9408 10009.5 RPS MWD OHMM 1.1 1280.19 30.2928 1204 9408 10009.5 RPM MWD OHMM 1. 29 2000 45.7891 1204 9408 10009.5 RPD MWD OHMM 1. 29 1960.72 89.0047 1204 9408 10009.5 FET MWD HOUR 1. 01 71. 63 6.86567 1204 9408 10009.5 NPHI MWD PU-S 5.38 60.47 23.5938 1181 9385.5 9975.5 . FCNT MWD CNTS 112 NCNT MWD CNTS 13782 RHOB MWD G/CM 1.494 DRHO MWD G/CM -0.857 PEF MWD BARN 1.4 2823 49257 3.2 0.61 17.68 First Reading For Entire File..........8534.5 Last Reading For Entire File...........10057.5 File Trailer Service name.............STSLIB.001 Service Sub Level Name... Version Number...........l.O.O Date of Generation.......04/l0/20 Maximum Physical Record..65535 File Type............... .LO Next File Name...........STSLIB.002 Physical EOF File Header Service name............. STSLIB. 002 Service Sub Level Name... Version Number...........l.O.O Date of Generation.......04/l0/20 Maximum Physical Record..65535 tile Type............... .LO Previous File Name.... ...STSLIB.OOl Corrunent Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE ROP $ 2 775.553 28963.4 2.36466 0.0512792 3.48878 1183 1181 1146 1146 1209 . 9385.5 9385.5 9385.5 9385.5 9385.5 9976.5 9975.5 9989.5 9989.5 9989.5 header data for each bit run in separate files. 1 .5000 START DEPTH 8768.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TO DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE $ # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): STOP DEPTH 8795.0 02-0CT-04 Insite 0.43 Memory 8795.0 8767.0 8795.0 30.5 30.5 TOOL NUMBER 8.500 .0 Water Based 10.60 53.0 10.0 1800 10.2 . RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: .000 .000 .000 .000 # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction............ .....Down Optical log depth units...........Feet Data Reference Point..............Undefined Frame Spacing.... .................60 .1IN Max frames per record.............Undefined Absent value...................... -999 Depth Units....................... Datum Specification Block sub-type...O Name Service Order DEPT ROP MWDOI0 Units Size Nsam Rep Code Offset Channel FT 4 1 68 0 1 FT/H 4 1 68 4 2 Name Service Unit DEPT FT ROP MWDOI0 FT/H Min 8768.5 0.23 Max 8795 23.41 Mean 8781. 75 8.07296 Nsam 54 54 First Reading For Entire File..........8768.5 Last Reading For Entire File...........8795 File Trailer Service name........ .... .STSLIB.002 Service Sub Level Name... Version Number. .. .. . . . . . .1.0.0 Date of Generation.......04/10/20 Maximum Physical Record..65535 Fi 1 e Type................ LO Next File Name...........STSLIB.003 Physical EOF File Header Service name... ........ ..STSLIB.003 Service Sub Level Name... Version Number...........l.0.0 Date of Generation.......04/10/20 Maximum Physical Record..65535 File Type............... .LO Previous File Name.......STSLIB.002 Comment Record FILE HEADER FILE NUMBER: RAW HWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: 3 . .0 152.6 .0 .0 First Reading 8768.5 8768.5 Last Reading 8795 8795 header data for each bit run in separate files. 2 .5000 . FILE SUMMARY VENDOR TOOL CODE GR ROP $ START DEPTH 8520.0 8795.5 STOP DEPTH 9377.0 9425.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE DGR $ BOTTOM) TOOL TYPE DUAL GAMMA RAY # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB!G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPER~TURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction.................Down Optical log depth units...........Feet Data Reference Point..............Undefined Frame Spacing.....................60 .1IN Max frames per record.............Undefined Absent value...................... -999 Depth Units....................... Datum Specification Block sub-type...O Name Service Order DEPT ROP MWD020 GR MWD020 Units FT FT!H API Size 4 4 4 Nsam Rep 1 68 1 68 1 68 Code Name Service Unit DEPT FT Min 8520 Max 9425 09-0CT-04 Insite 66.37 Memory 9425.0 8795.0 9425.0 24.3 31. 9 TOOL NUMBER 103770 8.500 8783.0 LSND 10.60 45.0 9.1 1600 5.0 .000 .000 .000 .000 Offset o 4 8 Channel 1 2 3 Mean Nsam 8972.5 1811 . .0 141.0 .0 .0 First Reading 8520 Last Reading 9425 . ROP MWD020 FT/H GR MWD020 API 0.15 30.28 . 1374.1 155.46 73.3934 1260 105.7 1715 8795.5 8520 9425 9377 F1rst Read1ng For Ent1re F11e..........8520 Last Reading For Entire Fi1e...........9425 File Trailer Service name............. STSLIB. 003 Service Sub Level Name... Version Number...........1. 0.0 Date of Generation.......04/10/20 Maximum Physical Record..65535 Fi 1 e Type................ LO Next File Name...........STSLIB.004 Physical EOF File Header Service name............ .STSLIB.004 Service Sub Level Name... Version Number...........l.0.0 Date of Generation.......04/10/20 Maximum Physical Record..65535 Fi 1 e Type................ LO Previous File Name.......STSLIB.003 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE PEF DRHO RHOB NCNT FCNT NPHI GR RPS FET RPX RPM RPD ROP $ 4 header data for each bit run in separate files. 3 .5000 START DEPTH 9377.5 9377.5 9377.5 9377.5 9377.5 9377.5 9377 . 5 9400.0 9400.0 9400.0 9400.0 9400.0 9425.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE DGR SLD CTN EWR4 STOP DEPTH 9620.5 9620.5 9620.5 9607.0 9607.0 9607.0 9634.0 9640.5 9640.5 9640.5 9640.5 9640.5 9689.0 12-0CT-04 Insite 66.37 Memory 9689.0 9425.0 9689.0 10.1 19.9 BOTTOM) TOOL TYPE DUAL GAMMA RAY STABILIZED LITHO DEN COMP THERMAL NEUTRON Electromag Resis. 4 TOOL NUMBER 156435 109110 100983 156404 . . $ # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 6.125 9425.0 # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: FLO-PRO 8.50 49.0 9.8 3400 5.8 .700 .410 .400 .800 68.0 122.0 68.0 68.0 # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type.................. 0 Data Specification Block Type.....O Logging Direction.................Down Optical log depth units...........Feet Data Reference Point..... ....... ..Undefined Frame Spacing.....................60 .1IN Max frames per record.............Undefined Absent value...................... - 999 Depth Uni ts . . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD030 FT/H 4 1 68 4 2 GR MWD030 API 4 1 68 8 3 RPX MWD030 OHMM 4 1 68 12 4 RPS MWD030 OHMM 4 1 68 16 5 RPM MWD030 OHMM 4 1 68 20 6 RPD MWD030 OHMM 4 1 68 24 7 FET MWD030 HOUR 4 1 68 28 8 NPHI MI'VD030 PU-S 4 1 68 32 9 FCNT MWD030 CNTS 4 1 68 36 10 NCNT MI'VD030 CNTS 4 1 68 40 11 RHOB MWD030 GICM 4 1 68 44 12 DRHO MWD030 GICM 4 1 68 48 13 PEF MWD030 BARN 4 1 68 52 14 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 9377.5 9689 9533.25 624 9377 . 5 9689 ROP MWD030 FT/H 0.31 119.58 33.6389 528 9425.5 9689 GR MWD030 API 19.17 390.32 92.7855 514 9377.5 9634 RPX MWD030 OHMM 1. 06 964.53 32.0896 482 9400 9640.5 RPS MWD030 OHMM 1.1 1280.19 38.5923 482 9400 9640.5 RPM MWD030 OHMM 1.29 2000 69.9213 482 9400 9640.5 RPD MWD030 OHMM 1. 29 1960.72 178.681 482 9400 9640.5 fET MWD030 HOUR 1. 61 71. 63 10.4057 482 9400 9640.5 NPHI MWD030 PU-S 5.38 60.47 30.2215 460 9377.5 9607 FCNT MWD030 CNTS 112 2823 623.959 460 9377.5 9607 NCNT MWD030 CNTS 13782 49257 25101. 7 460 9377.5 9607 RHOS MWD030 GICM 1. 494 3.2 2.3303 424 9377.5 9620.5 DRHO MWD030 GICM -0.857 0.61 0.0123349 424 9377.5 9620.5 PEF MWD030 BARN . 1.4 17.68 487 5.12033 First Reading For Entire Fi1e..........9377.5 Last Reading For Entire File...........9689 File Trailer Service name... ......... .STSLIB.004 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......04/10/20 Maximum Physical Record..65535 File Type.............. ..LO Next File Name...........STSLIB.005 Physical EOF File Header Service name............ .STSLIB.005 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......04/10/20 Maximum Physical Record..65535 File Type................LO Previous File Name.......STSLIB.004 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE NPHI FCNT NCNT PEF RHOB DRHO GR RPS RPX RPM RPD FET ROP $ 5 header data for each bit run in 4 .5000 START DEPTH 9607.5 9607.5 9607.5 9621.0 9621. 0 9621.0 9634.5 9641. 0 9641. 0 9641. 0 9641. 0 9641. 0 9689.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TO DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE DGR SLD CTN EWR4 $ separate files. STOP DEPTH 9967.5 9968.5 9967.5 9981.5 9981.5 9981. 5 9994.5 10001.5 10001. 5 10001.5 10001. 5 10001.5 10049.5 14 -OCT-04 Insite 66.37 Memory 10050.0 9689.0 10050.0 4.0 10.2 BOTTOM) TOOL TYPE DUAL GAMMA RAY STABILIZED LITHO DEN COMP THERMAL NEUTRON Electromag Resis. 4 TOOL NUMBER 156435 109110 100983 156404 . 9377.5 9620.5 . . # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 6.125 9425.0 # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: FLO-PRO 8.50 50.0 10.5 3600 7.4 .700 .400 .400 .800 68.0 125.6 68.0 68.0 # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type.................. 0 Data Specification Block Type.....O Logging Direction.................Down Optical log depth units...........Feet Data Reference Point..............Undefined Frame Spacing..................... 60 .1IN Max frames per record.......... ...Undefined Absent value..................... .-999 Depth Units....................... Datum Specification Block sub-type...O Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD040 FT/H 4 1 68 4 2 GR MWD040 API 4 1 68 8 3 RPX MWD040 OHMM 4 1 68 12 4 RPS MWD040 OHMM 4 1 68 16 5 RPM MWD040 OHMM 4 1 68 20 6 RPD MWD040 OHMM 4 1 68 24 7 FET MWD040 HOUR 4 1 68 28 8 NPHI MWD040 PU-S 4 1 68 32 9 FCNT MWD040 CNTS 4 1 68 36 10 NCNT MWD040 CNTS 4 1 68 40 11 RHOB MWD040 G/CM 4 1 68 44 12 DRHO MWD040 G/CM 4 1 68 48 13 PEF MWD040 BARN 4 1 68 52 14 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 9607.5 10049.5 9828.5 885 9607.5 10049.5 ROP MWD040 FT/H 1. 36 101. 53 40.363 721 9689.5 10049.5 GR MWD040 API 15.19 207.24 49.1115 721 9634.5 9994.5 RPX MWD040 OHMM 2.57 63.89 18.8322 722 9641 10001.5 RPS MWD040 OHMM 2.47 112.78 24.7522 722 9641 10001.5 RPM MWD040 OHMM 2.35 122.85 29.6786 722 9641 10001. 5 RPD MWD040 OHMM 2.68 110.56 29.1379 722 9641 10001.5 FET MWD040 HOUR 1. 01 40.9 4.50241 722 9641 10001. 5 NPHI MWD040 PU-S 9.37 44.6 19.3653 721 9607.5 9967.5 FCNT MWD040 CNTS 263 1815 872.003 723 9607.5 9968.5 NCNT MWD040 CNTS 21475 41350 31427.2 721 9607.5 9967.5 RHOB MWD040 G/CM 2.105 2.885 2.38484 722 9621 9981. 5 DRHO MWD040 G/CM -0.055 0.333 0.07414 96 722 9621 9981.5 PEF MWD040 BARN 1. 51 5.96 2.38827 722 9621 9981. 5 ~ ~ . . First Reading For Entire File..........9607.5 Last Reading For Entire File...........10049.5 File Trailer Service name... ...... ....STSLIB.005 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......04/10/20 Maximum Physical Record..65535 Fil e Type................ LO Next File Name...........STSLIB.006 Physical EOF Tape Trailer Service name.............LISTPE Date.....................04/10/20 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name................UNKNOWN Continuation Number......Ol Next Tape Name...........UNKNOWN Comments.................STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name.............LISTPE Date.. ...................04/10/20 Origin........... ........STS Reel Name................UNKNOWN Continuation Number......01 Next Reel Name...........UNKNOWN Comments.................STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File