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191-118
MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg 12�11 6I10"' DATE: 5/29/2020 P. I. Supervisor FROM: Guy Cook SUBJECT: Plug and Abandon Petroleum Inspector PBU L4-12 BPXA , PTD 1911180; Sundry 319-146 5/29/2020: 1 arrived on site and met with Jon Arend with BPXA and we discussed the well. I confirmed the information on the identification plate was correct and then went into the cellar and confirmed the cut-off depth of 5.5 feet below tundra level. I then confirmed there was good cured cement to surface in all the casing strings before the installation of the identification plate. I inspected the identification plate after its installation. The welds looked to be solid all the way around the casing, appearing to have good penetration into the steel, sealing the bore of the casing from the environment. I gave the go ahead to proceed with the process of burying the well. Attachments: Photos (5) 2020-0529_Surface_Abandon_PBU_L4-12_gc. docx Page 1 of 4 W N 0 r O 4' O C) a. Wl a $ I � c °- d N c cU oU C7 �O Q TO y N V O O N O O 3 r N U) d L N 3 S- g 2 r k V) a _ 9 A 3 r J k U 0 b U N �I Pa �I� C w o a M bq Q � is U N T N O O N O N k U O b pUp I N �Q ?al 7 � O O N P � Pr N yV 4 '� N O O N O N 1a. Well Status: GINJ Oil 1b. Well Class: 5 Exploratory Service BP Exploration (Alaska), Inc 14. Permit to Drill Number/Sundry 191-118 9/22/1991 10/28/1991 GL PRUDHOE BAY, LISBURNE OIL 4a. Surface: Top of Productive Interval: Total Depth: 2132' FSL, 2117' FEL, Sec. 24, T11N, R15E, UM 4338' FSL, 1039' FWL, Sec. 18, T11N, R16E, UM 1335' FSL, 1782' FWL, Sec. 07, T11N, R16E, UM Surface: x- y- Zone -721049 5959525 ASP 4 11. Gas SPLUG 5Abandoned 20AAC 25.105 Suspended 20AAC 25.110 WINJ WAG WDSPL No. of Completions: 5/30/2020 15. 50-029-22216-00-00 16. PBU L4-12 Well Name and Number: Surface / Surface 17.40 17. TPI:y- Zone -723982 ASP 4x-5967100 Total Depth: x-y-Zone -724657 ASP 45969399 14969' / 8999' N/A DNR Approval Number:19. 84-62 5. Directional or Inclination Survey: Yes No Submit electronic and printed information per 20 AAC 25.050 (ft MSL) 20.Thickness of Permafrost MD/TVD: DIFL / 2DL / DN / SL / RB CASING WT. PER FT.GRADE SETTING DEPTH MD TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED Location of Well (Governmental Section): Field/Pool(s): Date Comp., Susp., or Aband.:6. Total Depth (MD/TVD): CASING, LINER AND CEMENTING RECORD TOP BOTTOM 22. SETTING DEPTH TVD 9-5/8" 7-5/8" 4-1/2" 91.5# 68# 47# 29.7# 12.6# L-80 L-80 L-80 L-80 Surface Surface 10576' 10471' 10913' 12585' 14969' Surface Surface 7680' 7616' 8763' 7887' 8999' 6-3/4" 8-1/2" 12-1/4" 44 sx Arctic Set 440 cu ft Class 'G' 399 cu ft Class 'G' Uncemented Slotted Liner 25. GRADE PACKER SET (MD/TVD) 26. 2-7/8" 6.5# L-80 10476' DEPTH INTERVAL (MD)AMOUNT AND KIND OF MATERIAL USED PRODUCTION TEST27. Date First Production: Not on Production N/A Date of Test: Flow Tubing Press Oil-Bbl: Oil-Bbl: Gas-MCF:Water-Bbl: Oil Gravity - API (corr): Method of Operation (Flowing, gas lift, etc.): Gas-Oil Ratio:Choke Size: Water-Bbl: See Attached Open to production or injection?Yes No 524. If Yes, list each interval open (MD/TVD of Top and Bottom; Perforation Size and Number; Date Perfd): H-40 119'30"20" 13-3/8"Surface 3855'16"2892 cu ft Permafrost F, 400 cu ft Class 'G'Surface 3493' None Gas-MCF: Production for Test Period Calculated 24 Hour Rate Hours Tested: Casing Press: 119' ACID, FRACTURE, CEMENT SQUEEZE, ETC. TUBING RECORD DEPTH SET (MD) Yes No 5Was hydraulic fracturing used during completion? Per 20 AAC 25.283 (i)(2) attach electronic and printed information ADL 028323, 028339 & 028338 319-146 Other 12. SSSV Depth (MD/TVD): Ref Elevations BF Surface (attached) KB Form 10-407 Revised 3/2020 Sr Pet Eng Sr Pet Geo Sr Res Eng STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG Development Stratigraphic Test 2.Operator Name: 3.Address: P.O. Box 196612 Anchorage, AK 99519-6612 7. Date Spudded: 8. Date TD Reached: 9. 10. Plug Back Depth(MD/TVD): 4b. 4b. Location of Well (State Base Plane Coordinates, NAD 27): 56.00 Water Depth, if Offshore:13. None Zero API Number: Logs Obtained List all logs run and, pursuant to AS 31.05.030 and 20 AAC 25.071, submit all electronic data and printed logs within 90 days of completion, suspension, or abandonment, whichever occurs first. Types of logs to be listed include, but are not limited to: mud log, spontaneous potential, gamma ray, caliper, resistivity, porosity, magnetic resonance, dipmeter, formation tester, temperature, cement evaluation, casing collar locator, jewelry, and perforation record. Acronyms may be used. Attach a separate page if necessary 23. 18.Property Designation: 21.Re-drill/Lateral Top Window MD/TVD: N/A 1900' (Approx.) 5 Submit within 30 days of Completion, Suspension, or Abandonment G By Samantha Carlisle at 9:59 am, Jun 16, 2020 Abandonment Date 5/30/2020 HEW RBDMS HEW 6/18/2020 xGDLB 06/18/2020 DSR-7/1/2020MGR30JUN20 If yes, list intervals and formations tested, briefly summarizing test results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Permafrost - Base Formation at total depth: Contact Name:Worthington, Aras J Contact Email:Aras.Worthington@bp.com Authorized Name:Lastufka, Joseph N Authorized Title:SIM Specialist Authorized Signature with Date:Contact Phone:+1 907 564 4102 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. 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. All laboratory analytical reports regarding samples or tests from a well must be submitted to the AOGCC, no matter when the analyses are conducted. Item 1a. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 1b. Well Class Service wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disp, Water Supply for Injection, Observation or Other. Item 4b. TPI (Top of Producing Interval). Item 9. The Kelly Bushing and Ground Level elevations in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 15. The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Item 20. Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 29. Item 22. Review the reporting requirements of 20 AAC 25.071 and, pursuant to AS 31.05.030, submit all electronic data and printed logs within 90 days of completion, suspension, or abandonment, whichever occurs first. Item 23. Attached supplemental records should show the details of any multiple stage cementing and the location of the cementing tool. Item 24. If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27. Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-in, or Other ( explain). Item 28. Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30. Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Item 31. Pursuant to 20 AAC 25.070, attach to this form: well schematic diagram, summary of daily well operations, directional or inclination survey, and other tests as required including, but not limited to: core analysis, paleontological report, production or well test results. 9692' 12007' 12555' 13631' 14224' 7151' 8555' 8759' 8815' 8888' Colville Mudstone HRZ Lisburne - Wahoo 7 / Wahoo 6 Wahoo 5 Wahoo 4 Wahoo 4 28.CORE DATA Conventional Core(s) Yes No 5 Sidewall Cores Yes No 5 If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 25.071. Well Tested? Yes 14224'8888' Top of Productive Interval 12555'8759' Form 10-407 Revised 3/2020 Submit within 30 days of Completion, Suspension, or Abandonment 30. FORMATION TESTS29. GEOLOGIC MARKERS (List all formations and markers encountered): NAME MD TVD Permafrost - Top No 5 31. Summary of Daily Work, Photo Documentation, Wellbore Schematic DiagramList of Attachments: Information to be attached includes, but is not limited to: summary of daily operations, wellbore schematic, directional or inclination survey, core analysis, paleontological report, production or well test results, per 20 AAC 25.070. Joseph N Lastufka Digitally signed by Joseph N Lastufka Date: 2020.06.16 09:45:58 -08'00' c WWEL L NAME:L 4-12 226.Ac i d , Fr ac t u r e, Cem en t Sq u eeze, Et c . Depth Interval (MD) Amount & Kind of Material Used 10500' - 10505' Tubing Punch 11757' 127 Bbls Class 'G' 10445' - 11450' Tubing Punch 3126' 527 Bbls Class 'G' 2305' - 2315' Tubing / Casing Punch Surface 190 Bbls Class 'G' Surface 7 Bbls Class 'G' ACTIVITYDATE SUMMARY 4/2/2019 T/I/O = 280/200/0. Temp = SI. LTSI Wells. Performed MV LTT = PASSED. Flowline disconnected & blinded. Integral flange on flow cross companion =inspection not current. SV, WV, SSV = C. MV = O. IA, OA = OTG. 16:00. 7/16/2019 T/I/O= 212/200/0 Temp= S/I (PLUG AND ABANDONMENT) Preesure test @ 2623 psi. ***PASS***. Pumped 1.83 bbls diesel down TBG to reach test pressure. TBG lost 171 psi in 15 min notify FB WSL & DSO. Hang caution tags, SV,SSV,WV=closed MV=open IA/OA=otg. FWHP"s 232/249/-5. Well shut in upon departure. 7/21/2019 ****WELL S/I ON ARRIVAL****(P&A) CLEAR PARRAFIN DOWN TO 2400' SLM W/ 2.305'' GAUGE RING. SET 2-7/8'' SSCS AT 2384' SLM. PULL RK-DGLV FROM CHEMICAL INJECTION MANDREL AT 2257' SLM. PULL 2-7/8'' SSCS FROM 2384' SLM. RUN 10' x 2.25" PUMP BAILER w/ flat flapper bottom TO 10,425' SLM.(empty bailer) ATTEMPT TO EQUALIZE 2-7/8" XXN-PLUG @ 10,459' MD ****CONT WSR ON 7-22-19**** 7/22/2019 ****CONT WSR FROM 7-21-19****(P&A) RUN 10' x 2.25" PUMP BAILER w/ SNORKLE BALL BOTTOM TO 10,426' SLM. EQUALIZE AND PULL 2-7/8" XXN-PLUG @ 10,459' MD. DRIFT TO 10,580' SLM W/ 2'x1-7/8'' STEM AND 10'x2.16'' DUMMY GUN. TAG XN W/ 2.305'' GAUGE RING AND FLAG WIRE AT 10,426' SLM. RUN HES MAX FIRE W/ 10' x 2.16'' DUMMY GUN TO 10,500' CORRECTED MD FOR PERAMETER LOG. PUNCH TUBING W/ HES MAX FIRE @ 10,500' MD. ****WELL LEFT S/I ON DEPARTURE, DSO NOTIFIED**** 8/1/2019 T/I/O SSV/250/0. Temp= S/I Special Projects Job Scope: Cement TRSV control & Chemical injection lines for P&A Pumed hydraulic fluid down both lines to perg gas out. Mix up 2.5 gallons of 14.0 ppg SqueezeCrete cement and pump 1.8 gallons down Chemical injection line. (Front) and pressured up to 4100 psi. swapped to TRSV control line and pressure up to 5000 psi Placed heat on welll head and cycled hydraulic pump fthrough out job with line taking no fluid . Recommend that DHD attempts to pump hydraulic fluid down TRSV line directly after FB cement job. Cation tags hung with information. Well secured and DSO notified.***Job complete** 9/18/2019 T/I/O=2000/250/0. (LRS Unit 46 - Injectivity Test) Establish injectivity of 5 bpm @ @ ~650 psi w/ 5 bbls 60/40, followed by 270 bbls of 2% kcl down tbg for injectivity test.Freeze protect tbg with 15 bbls of 60/40. SV,WV,SSV=closed. MV=open. IA and OA open to gauges. FWHP= vac/263/vac 9/18/2019 T/I/O = Vac/270/140. Temp = SI. Purge C&B / chemical lines. Chemical line is cemented, no balance is line present. CLP = 2000 psi on arrival. Pumped ~0.5 gal hydraulic fluid at 5000 psi max pressure. Appeared to be pushing an obstruction (shallow) for a short period but then the pressure locked up. Performed 3 failing small volume pressure tests - see log. Bled CLP to 0 psi (measured 6 oz). LRS in control of well on departure. 17:00. Daily Report of Well Operations PBU L4-12 Daily Report of Well Operations PBU L4-12 9/28/2019 T/I/O = SSV/250/0. Temp = SI. Cement Control line (Pre P&A). No AL. Mixed up 2.5 gallons of microfine Squeezecrete. Rigged up and pumped ~.10 gallons of squeezecrete into the control line before pressuring up to 2000 psi. SD the pump and monitored for 15 minutes. The control line lost ~50 psi in 15 minutes. Brought the pump pressure to ~4250 psi with no more flow. Monitored the WHPs for 30 minutes. No change in the Control line pressure. Tagged the control line. Final WHPs = SSV/250/0. SV, WV, SSV = C. MV = O. IA, OA = OTG. 13:00 10/1/2019 (LRS unit 76 - assist SLB cement crew / Heat diesel transport) Heated diesel transport to 80* F. Rigged up to choke trailer **Continue on 10/2/19** 10/1/2019 SLB Fullbore Cementing Crew - Plug and Abandonment - Reservoir Plug MIRU SLB and LRS ***Continued on 10-02-19*** 10/2/2019 **Continued from 10/1/19** (LRS unit 76 assist SLB cement crew) Pumped 18 bbls 60/40 meth down TBG to spear and prove injectivity before cement. SLB pumped displacement of cement. Ball dropped, pumped 55 bbls diesel to displace cement down TBG. RDMO. FWHP=0/265/0 10/2/2019 ***Continued from 10-01-19*** SLB Fullbore Cementing Crew - Plug and Abandonment - Reservoir Plug Bullheaded the following fluids down TBG into formation: LRS pumped 18 bbls 60/40. SLB pumped 5 bbls FW, 127 bbls 15.8 PPG Class G CMT, 5 bbls FW, dropped foam balls. LRS pumped 55 bbls 75 deg F diesel for displacement. S/I swab/SSV/QTR turns. RDMO. Notify DSO. **Job Complete** Est TBG TOC at 10,424' MD / 7,588' TVD 10/3/2019 T/I/O = SSV/260/Vac. Temp = SI. PT Control Line **PASSED** (P&A). AL spool disconnected. Control line pressure = 10 psi. Pressure test cemented control line to 2500 psi, CLP decreased 70 psi in 15 min. Control line bled to 0 psi. Tag hung. Final WHPs = SSV/260/Vac. SV, WV, SSV = C. MV = O. IA, OA = OTG. 09:00 10/25/2019 ***WELL S/I UPON ARRIVAL*** (p&a) TAGGED XN W/ 10' x 2.25" DRIVE DOWN BAILER (recovered wiper ball) TAGGED TOC W/ 10' 1.75" DRIVE DOWN BAILER @ 11,747' SLM (estimated to be 10,441' slm) (full bailer of cement) LRS PERFORMED FAILING MIT-T TO 2500psi (see lrs log for details) ***WELL S/I UPON DEPARTURE*** 10/25/2019 T/I/O=240/260/0 Assist S-Line (Plug And Abandon) Pressure Test TBG Failed. Unable to reach or maintain test pressure. Target pressure= 2500 psi. Max Applied=2750 psi. Pumped 27 bbls diesel down TBG, couldn't establish LLR (lack of fluids). Pressured up TBG to 2711 psi and monitored pressures for 15 min. TBG lost 301psi. Bled TBG down to 888 psi and recovered ~ 14 bbls. Had to shut in bleed, TBG pressure was gaing as bleeding.Tags hung. Slickline in control of well upon LRS departure. Final whp's=900/260/vac 12/7/2019 T/I/O=1250/260/0 Temp=SI MIT-T (PLUG AND ABANDONMENT) MIT-T FAILED to 2407 psi, Max Applied Pressure=2700 Target Pressure=2500 psi. Pressured TBG to 2690 psi with 19.45 bbls DSL. MIT-T lost 156 psi in 1st 15 minutes and 127 psi in 2nd 15 minutes for a total of 283 psi during 30 minute test. Pressured TBG to 2700 psi with .66 bbls DSL. LLR @ .022 BPM Bled TBG to 1500 psi. Bled back 6 bbls DSL. Valve Positions=SV,WV, SSV closed MV open CV's OTG. FWHP=1500/260/0 Daily Report of Well Operations PBU L4-12 12/12/2019 T/I/O = 1440/250/Vac. Temp = SI. WHPs (LTSI campaign). SV, WV (LOTO), SSV = C. MV = O. IA, OA = OTG. 14:10. 12/20/2019 ***WELL S/I ON ARRIVAL SWCP 4521***(p&a) RAN 2.0" CENT & 1.75" SAMPLE BAILER, TAG TOC @ 11,757' SLM (aogcc state witnessed tag) DRIFT & TAG XN-NIP W/ 18'x1-1/2" STEM & 2.30" G-RING @ 10,445' SLM/10,459' MD (14' corr) TAG XN-NIP W/ HES MAX FIRE (psi/tempt) DRIFT & 2.30" G-RING FLAG WIRE @ 10,438' SLM/10,445' MD PUNCH TUBING W/ HES MAX FIRE @ 10,445' MD (wire parted @ 565' slm, see log) ***CONT WSR ON 12/21/19*** ****NOTE- APPROX 16' OF .125ss WIRE & 39' OF T.S. LIH**** 12/21/2019 ***CONT WSR FROM 12/20/19*** (p&a) RAN BAITED 2.0" LIB TO 2,160' SLM (impression of wire) RAN BAITED 2-7/8" BRUSH & 3 PRONG WIRE GRAB TO 2,159' SLM RAN BAITED 2.0" SPLIT SKIRT JUS TO 2,165' SLM, PUSH FISH TO 7,300' SLM RAN BAITED 1.80" 2 PRONG WIRE GRAB TO 7,370' SLM. (recover all wire and t.s components) ***CONT WSR ON 12/22/19*** 12/22/2019 ***CONT WSR FROM 12/21/19*** (P&A) RIG DOWN SWCP 4521 ***WELL LEFT S/I ON DEPARTURE*** 1/10/2020 T/I/O= 890/280/vac Temp= SI LRS unit 42 Circ-Out (Plug & Abandoned) Pumped 10 bbls 60/40 down TBG with IA closed to comfirm injectivity down TBG to IA into PC leak. Pumped the following fluids down TBG up the IA taking returns to open top tanks: 65 bbls 140* FW+Surfactant; 2gal/mgal F103 and 2 gal/mgal U067 810 bbls 9.8 ppg NACL Fluid bbls pumped vs OTT straps indicates 165 bbls of fluid loss. Due to Circ results town decided to freeze protect IA to 2200' Freeze protected choke skid to OTT with 5 bbls 60/40 Freeze protected TBG with 2 bbl 60/40 and IA with 10 bbls of neat MEOH and 140 bbls 60/40 SV WV SSV closed, Master open, IA OA= OTG Tags hung **AFE** sign hung on well. Final WHPs= 0/0/0 Daily Report of Well Operations PBU L4-12 4/20/2020 SLB Pumping Crew - Scope: (CEMENT TBG & IA - P&A). Target TOC in TBG and IA 3300'. RU to circulate down the TBG taking returns from the IA. Pumped 5bbl 60/40, 10bbl Fresh Water Spacer, 527bbl 15.8ppg Class G Cement, 5bbl Fresh Water spacer. Launch 4" foam ball, displaced with 13bbl 9.8ppg NaCl. TBG freeze protected with 1bbl 60/40. Bullhead 5bbl 60/40 to freeze protect IA. Based on tank returns and return micro motion, lost ~25bbl of cement to PC leaks. Estimate foam ball at 2,418' MD. UCA-500psi at 24hr. ***Job complete, tags hung on tree for cement plug in TBG and IA*** BOC in TBG and IA = 10,445' MD TOC in TBG = 3,280' MD TOC in IA = 3,380' MD 4/27/2020 T/I/O= 0/80/0 CMIT TxIA **PASSED** to 2706/2729 (PRE AOGCC/PLUG AND ABANDONMENT) Pumped 10.5 bbls 60/40 down IA and TBG to reach test pressure. Test #1 15 min TxIA lost 24/22 30 min TxIA lost 9/12. Total loss in 30 mins = 33/34. Bled TxIA back to starting pressures. Bled pressures to OTT fluid and gas. Flushed hardliineto OTT with 3 bbls 60/40 FWHP=0/0/0 **Fluid packed tags hung on IAV/WV** **AFE sign in place on arrival** 5/1/2020 T/I/O= vac/4/vac. Assist slickline (PLUG AND ABANDONMENT) AOGCC Witness **Brian Bixby** CMIT TxIA **PASSED** to 2661/2725 psi. Pumped 4.8 bbls dsl into TxIA to reach test pressure. Max applied = 2750 psi. Target = 2500 psi. 15 min TxIA lost 60/15. 30 min TxIA lost 28/9. Total loss in 30 mins = 88/24. Bled TxIA back to starting. Bled back 3.1 bbls. Slickline still on well at LRS departure. FWHP= 0/0/0 ***Job Complete*** 5/1/2020 ***WELL S/I ON ARRIVAL*** (Plug and abandonment) TAG TOC AT 3,126' SLM W/ 5'x 2.25" BAILER (State witnessed by AOGCC inspector Bryan Bixby) LRS PERFORMED SUCCUSSFUL AOGCC WITNESSED CMIT-T TO 2,661psi FLAGGED AND TAGGED SSSV NIPPLE W/ 2.40" CENT @ 2,153' SLM PERF W/ 10' x 2.0" PERF GUN (6 spf) FROM 2,305' MD-2,315' MD (t x ia x oa communication) ***CONT WSR ON 5/2/20*** 5/2/2020 ***CONT WSR FROM 5/1/20*** (plug and abandonment) RD SWCP 4516 SLICKLINE UNIT ***WELL LEFT S/I UPON DEPARTURE, PAD OP NOTIFIED OF WELL STATUS*** 5/3/2020 T/I/O=148/72/5. LRS Unit 76. (CIRC OUT - P&A) Pumped 70 bbls of 160* F diesel followed by 15 bbls 160* F 9.8 brine down TBG taking returns out the OA to OTT. Let soak for 1 hr. Resumed circ with 50 bbls 160* freshwater with F103 surfactant down TBG up the OA to OTT. Flushed well with 175 bbls 9.8 brine down the TBG up the OA to OTT. Checked communication from TBG to IA with 10 bbls brine down the TBG up the IA to OTT. Pumped 6 bbls 60/40 down IA to FP to ~100'. Freeze protected well ~ 100 with 7 bbls 60/40 meth down the TBG and U-tubed into OA. Flushed surface lines to OTT with 2 bbls 60/40 meth. RDMO. Valve positions on departure as follows: SSV/Swab/WV=Shut, MV/IA/OA=Open. FWHP=0/90/0. ***Job Complete*** Daily Report of Well Operations PBU L4-12 5/4/2020 SLB Cementing Crew. (CEMENT TBG, IA, OA TO SURFACE, P&A) Cemented the TBG, IA, and OA to surface. Circulated in 5bbl 60/40, 5bbl fresh water, 190bbl 15.8ppg Class G Cement down the TBG, taking returns from the OA. Clean cement returns from OA at 190bbl away. Swapped to taking returns from the IA and circulated in 175bbl 15.8ppg Class G Cement. Clean cement returns from IA after 155bbl away. ***Job Complete, Swab, SSV, IA, OA = closed, flagged and tagged*** TBG, IA, and OA TOC = surface TBG, IA, and OA BOC = 2,315'md. 5/10/2020 T/I/O = VAC/VAC/VAC. Remove upper tree and install tree cap assembly. Torque to API specs. Remove IA and OA Valves, Install Tapped blind flanges on both IA and OA, Torque to API specs. RDMO ***Job Complete*** SEE LOG FOR DETAILS. Final T/I/O = 0/0/0. MV = OTG. IA/OA = OTG. 5/24/2020 ***WELLHEAD CUT OFF ON ARRIVAL*** (Plug & Abandonment) TAGGED TOC W/ 2.15" CENT, 1-3/4" SAMPLE BAILER @ 815' FROM TOP OF WELLHEAD CUT. ***JOB COMPLETE ON 24-MAY-2020*** 5/26/2020 *** Full P&A *** RU WACH saw to tree in excavation & cut WH. Cut WH ~ 5.5' below tundra grade. TBG, IA , OA have no cement @ surface. RU SL & dry tag TBG cement top @ 815'. No fluids & good hard, dry cement recovered in bailer. ***Notify AOGCC to witness prior to top off (State man witnessed - Adam Earl 5/24/20) ***. Assumption is IA & OA cement top @ 815'. Calculated cement volume needed for top job is 108 bbls. RU Schlumberger cement van & pumped 15.8 ppg class G to top off voids. Actual total volume pumped for top job = 78.7 bbls. RDMO wait on cement to cure. Job in Progress. 5/30/2020 Permanent P&A. *Job complete* AOGCC witness (Guy Cook) top of cement, cut depth and marker plate. Pad grade = 19.3', Tundra grade = 14.8, Wellhead cut elevation = 9.3', Wellhead is cut 5.5' below tundra grade. Weld marker plate and backfill excavation. MEMORANDUM TO: Jim Regg P.I. Supervisor�� FROM: Brian Bixby Petroleum Inspector State of Alaska Alaska Oil and Gas Conservation Commission DATE: May 1, 2020 SUBJECT: Well Bore Plug & Abandonment PBU L4-12 - BP Exploration PTD 1911186; Sundry 31-9-146 Section: 24 Township: 11N Range: 15E Meridian: Umiat Fullbore Drilling Rig: n/a Rig Elevation: n/a Total Depth: 14969 ft MD Lease No.: ADL028323 0 Operator Rep: Jeremy Grimes Suspend: P&A: XXX Casing/Tubing Data (depths are MD): Casing Removal: Conductor: 20" O.D. Shoe@ 119 Feet Csg Cut@ Feet Surface: 13 3/8" O.D. Shoe@ 3855 Feet Csg Cut@ Feet Intermediate: 9 5/8" O.D. Shoe@ 10913 Feet Csg Cut@ Feet Liner: 7 5/8" - O.D. Shoe@ 12585 Feet Csg Cut@ Feet Liner: 4 1/2" - O.D. Shoe@ 14969 Feet Csg Cut@ Feet Tubing: 2 7/8" O.D. Tail@ 10476 Feet Tbg Cut@ Feet Plugging Data: Test Data Type Plug Founded on Depth Btm Depth To MW Above Veritled Fullbore Balanced 10450 ft MD 3,126 ft MD 9.8 ppg Brine" Wireline tag 0 0 Initial IF; min ,in min 45 min Result Tubing 2749 2689 2661 IA 2749 - 2734 2725 P OA 0 0 0 Tubing IA OA Initial 15 min 30 min 45 min Result Remarks: Witnessed good tag and good sample of cement from bailer. Pretest T/I/O was 0/0/0 psi. 3 bbls pumped for the test; 3.1 bbls bled back. Tbg and IA were perssured up at the same time and blocked for the 30 minute monitoring. ✓ Attachments: rev. 11-28-18 2020-0430_Plug_Verification_PBU_L4-12_bb MEMORANDUM Founded on State of Alaska Depth To MW Above Verified Alaska Oil and Gas Conservation Commission TO: Jim Regg DATE: December 20, 2019 6.9 pp g Wireline tag P.I. Supervisor SUBJECT: Plug Verification Prudhoe Bay Unit L4-12 ' FROM: Austin McLeod BPXA " Petroleum Inspector PTD 1911180; Sundry 319-146 Section: 24 Township: 11N Range: 15E Meridian: Umiat ' Drilling Rig: NA Rig Elevation: NA Total Depth: 14969 ft MD Lease No.: ADL 028323 " Operator Rep: Rob Bryan Suspend: P&A: x Casing/Tubing Data (depths are MD): Casing Removal: Conductor: 20" O.D. Shoe@ 119 Feet Csg Cut@ NA Feet Surface: 13-3/8" O.D. Shoe@ 3,855 Feet Csg Cut@ NA Feet Intermediate: 9-5/8" O.D. Shoe@ 10,913 ' Feet Csg Cut@ NA Feet Production: NA O.D. Shoe@ NA Feet Csg Cut@ NA Feet Linerl: 7-5/8" O.D. Shoe@ 12,585 ' Feet Csg Cut@ NA Feet Liner2: 4-1/2" O.D. Shoe@ 14,969 - Feet Csg Cut@ NA Feet Tubing: 2-7/8" O.D. Tail@ 10,476 Feet Tbg Cut@ NA Feet Plugging Data: Test Data: Type Plug Founded on Depth Btm Depth To MW Above Verified Fullbore Bottom 14,969 ft MD I 11,757ftMD-j 6.9 pp g Wireline tag Initial 15 min 30 min 45 min Result Tubing IA OA Remarks: I traveled to PBU L4-12 to witness the tag of a reservoir isolating cement plug that was previously tagged (1300 ft low) and pressure tested (failing test) - neither being witnessed by AOGCC. Using a 1.75 -inch sample bailer slickline string they ran in the hole to confirm the top of the plug depth. The plug was found at 11,757 ft WLM with multiple tags made. BPXA's previous tag was at 11,747 ft WLM. I was informed the wellbore inclination at the plug was 51 degrees. No pressure test was done at this ✓ time. With a witnessed tag, AOGCC's Mel Rixie granted BPXA to deviate from the orginal abandonement process moving up hole to punch the tubing and to continue on with the remaning cementing procedure (email approval 12-13-2019) . A cement sample was observed in the bailer once broke down. Attachments: rev. 11-28-18 2019-1220_Plug_Verification_PBU_L4-12_am Regg, James B (CED) From: Rixse, Melvin G (CED) Sent: Friday, December 13, 2019 8:52 AM To: Aivano, Mike (Udelhoven) Cc: Worthington, Aras J Subject: FW: 1-4-12 P&A Program v3 Attachments: L4-12 P&A Program v3.pdf Mike, The attached revised program (revision 3) for P&A of L4-12 is approved by AOGCC. Mel Rixse Senior Petroleum Engineer (PE) Alaska Oil and Gas Conservation Commission 907-793-1231 Office 907-223-3605 Cell CONFIDENTIALITY NOTICE: This a -mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this a -mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Mel Rixse at (907-793-1231) or (Melvin.Rixseraalaska.cov). cc. Aras From: Aivano, Mike (Udelhoven) <mike.aivano@bp.com> Sent: Wednesday, December 11, 2019 4:09 PM To: Rixse, Melvin G (CED) <melvin.rixse@alaska.gov> Cc: Worthington, Aras J <Aras.Worthington@bp.com> Subject: 1-4-12 P&A Program v3 Mel, Attached for your review is the latest program revision for 14-12. Thanks, Mike Excerpts from 12/13/2019 revised P&A Program for PBU 1-4-12 approved by AOGCC: by 0 L4-12 P&A Program v3 Intervention Engineer Mice Aivano (907) 564-54751(907) 885-9190 Reviewed by Area Wallington (907) 564-4102 Production Engineer Mark Sauve (907) 5644560 Sundry Number 319-145 History 1-4-12 is a high angle well completed in November of 1991. The well was drilled and completed with 2-7hr tubing and a 4-112" pre -drilled un -cemented liner across the production intervals. In 2005, the PC Leak Waiver was canceled as brine bads appeared to be ineffective for keeping IA pressures down_ An LDL was conducted in 2006, and PC leaks were identified at 8425', 8440' and 10404' (LLR 2 bpm C 1600psi). L4-12 was given low probability of economic and welwork success and thus has no current planned utilization. Oct 2, 2019, a reservoir abandonment plug, 127 bbls of Class G cement,was bullheaded down the tubing into the formation. The planned top of cement was to be at the 10424' and but Slickkne tagged to top of cement 1300' low at 11747' slm. A MIT -T was conducted to 2500 psi, the test failed with results of --156 psi in the first 15 minutes and --127 psi in the second 15 minutes with a LLR of ^0.022 bpm. Neither the Slickline tag or the MIT -T was witnessed by the AOGCC.. 14 "h^"'n^ ( ru.1kei,@�(Tagged TOC at 11747'skn -was not Witnessed, MIT -T failed) VIL Slickiine 1. RIH with 2.3" drift and tag XN Nipple at 10459' and flag wire. 2. MU 5 ft of Tubing Punches and firing head for 2-718' Tbg. 3. RIHand Punch 2-718" Tbq, too shot at -10445' mid. Can use Eline if required. Tie-in using 2-718" Tbg Tally THE STATE °fALASKA GOVERNOR MIKE DUNLEAVY Aras Worthington Engineering Team Lead BP Exploration (Alaska), Inc. PO Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Lisburne Oil Pool, PBU L4-12 Permit to Drill Number: 191-118 Sundry Number: 319-146 Dear Mr. Worthington: Alaska Oil and Gas Conservation Commission 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 www.00gcc.olaska.gov Enclosed is the approved application for the sundry approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the AOGCC grants for good cause shown, a person affected by it may file with the AOGCC an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, Daniel T. Seamount, Jr. Commissioner h d DATED this Z day of April, 2019. R13DMS��APR 0 2 7019 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.260 RECEIVE® MAR 2 6 2019 1. Type of Request: Abandon 0 Plug Perforations ❑ Fracture Stimulate ❑ Repair Well ❑ Operations shutdown ❑ ORIGINAL Suspend ❑ Perforate ❑ Other Stimulate ❑ Pull Tubing ❑ Change a GGC Plug for Rednll ❑ Perforate New Pool ❑ Re-enter Susp Well ❑ Alter Casing ❑ Other ❑ 2. Operator Name: BP Exploration (Alaska), Inc 4. Current Well Class: Exploratory ❑ Development 0. 5. Permit to Drill Number: 191-118 3. Address; P.O. Box 196612 Anchorage, AK 99519-6612Stretigraphic ❑ Service ❑ B. AN Number 50-029-22216-00-00 - 7. If perforating: What Regulation or Conservation Order govems well spacing in this pool? 8. Well Name and Number: Will planned perforations require a spacing exception? Yes ❑ No 0 PBU 1.4-12 9. Property Designation (Lease Number): 10. Field/Pools: ADL 028323. 028339 & 028338 PRUDHOE BAY. LISBURNE OIL ' 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD(k) : Effective Depth MD: Effective Depth TVD: MPSP (psi): Plugs (MD): Junk (MD): 14969 '6 8999'x- 10459 7794 10459 None Casing Length Size MD TVD Buret Collapse Structural. Z ' Conductor 80 20" 39-119 39-119 1490 470 Surface 3817 13-3/8' 38-3855 38-3493 4930 2270 Intermediate 10877 9-5/8" 36-10913 36- 7887 887089 4760 Liner 2009 7-5/8" 10576 - 12585 7680-8763 60 4790 Liner 4498 4-1/2" 10471 - 14969 7618-8999 8430 7500 Perforation Depth MD (ft): Perforation Depth TVD (ft): 1 Tubing Size: Tubing Grace: Tubing MD (ft): 12572 - 14926 8762 - 8991 2-7/8" 6.5# L-80 34-10476 Packers and SSSV Type: No Packer Packers and SSSV MD (ft) and TVD (ft): No SSSV Installed 12. Attachments: Proposal Summary 0 Wellbore Schematic 0 13. Well Class after proposed work: Detailed Operations Program ❑ BOP Sketch ❑ Exploratory ❑ Stratigrephic ❑ Development 0 Service ❑ 14. Estimated Date for Commencing Operations: April 31, 2019 15. Well Status after proposed work: Oil ❑ WINJ ❑ WOSPL ❑ Suspended ❑ 16. Verbal Approval: Date: GAS ❑ WAG ❑ GSTOR ❑ SPLUG ❑ Commission Representative: GINJ ❑ Op Shutdown ❑ Abandoned 0 ' 17. 1 hereby certify that the foregoing is true and the procedure approved herein will not Contact Name: Aivano, Mike (Udelhoven) be deviated from without prior written approval. Contact Email: mike.aivanoobp.com Authorized Name: Worthington, Area J Contact Phone: +1 9075645475 Authorized TitlentervenfiqjgE & Integrity Engineer Authorized Signature: Date:. COMMISSION USE ONLY Conditions of approval://Notify Commission so that a representative may witness Sundry Number. i I LI / BO/P Test ❑ Mechanical Integrity Test lk_" Location Clearances Plug Integnty p�a�), L other: A D / . C.•# 0 e-ap, w. AT Y-/ /t%�t d flY'O'`�i'Q (}.X07 /1-1. e- H.� 070e— Post initial Injection MIT Req'd? Yes ❑ No ❑ Spacing Exception Required? Yes ❑ No ti7J Subsequent Form Required: / �(—W P7 4' APPROVED BYTHE LL Approved by: COMMISSIONER COMMISSION Date: RMS —IIA/APR o z 2o1Me-P,2p,0foli ` 3-2.7.61 / Submit Form and Form 10-403 Revised 04/2017 Approved application is valid for 12 months from the date of approval. Attachments in Duplicate by 0 1-4-12 P&A Intervention Engineer Mike Aivano (907) 564-5475 Reviewed by Aras Worthington (907) 564-4102 Production Engineer Mark Sauve (907) 564-4660 Expected start date: April 31, 2019 History L4-12 is a high angle well completed in November of 1991. The well was drilled and completed with 2-7/8" tubing and a 4-1/2" pre -drilled un -cemented liner across the production intervals. In 2005, the PC Leak Waiver was canceled as brine loads appeared to be ineffective for keeping IA pressures down. An LDL was conducted in 2006, and PC leaks were identified at 8425', 8440' and 10404' (LLR 2 bpm @ 1600psi). L4-12 was given low probability of economic and wellwork success and thus has no current planned Objective Place a reservoir abandonment cement the upper wellbore to abandon the well. install marker cap. DPZ 1 — top at 1872 ft, bottom at 9620 ft DPZ 4 - top at 12557 ft Procedural steps plug across the production interval as well as cement plugs in Excavate and cut casings 3' below original tundra level and Special Projects 1. Injectivity test into Control and Balance Lines ( TRSSSV locked open June 1998) 2. Cement Control and Balance Lines with 2.1 gals of Squuesecreete or FineCem. Goal is to cement at least 1300 ft or more (1.2 gals each). DHD 1. Wait on 3 days on cement. Pressure test Control and Balance Lines to 2500 psi. Slickline/Fullbore 1. Pressure test tubing to 2500 psi ( 2700 psi max) for 30 mins to confirm tubing integrity. 2. D&T to the XXN Plug at 10459'. 3. Pull XXN Plug. 4. Punch liner just below packer at —10500' as per 4-1/2" Liner Tally. Fullbore 1. Bullhead tubing with the following, max pressure of 2500 psi. ➢ 5 bbl McOH ➢ 135 bbls 2% KCL Brine L4-12 P&A Sundry 2. Bullhead the following cement plug to abandon production zone. Target TOC in tubing at -10424' ➢ 5 bbls freshwater spacer ➢ 125 bbls 15.8 ppg cement per design ✓ ➢ Foam Ball ➢ 2 bbls freshwater spacer ➢ 58 bbls diesel Cement Type/weight: Class G 15.8 ppg mixed on the fly. Field blend to be =lab pp +/- 0.1 ppg Slurry Temperature: between 800 and 110°F Fluid Loss: 40-200cc (20-100cc/30 min) Compressive Strength: 2000 psi in 48 hrs. Thickening Time: Minimum 8 hours Slickline / Fullbore 1. MITT to 2500 psi - AOGCC Witness 2. Tag TOC - AOGCC Witness ,/ 3. Punch 2-7/8" tubing just above the TOC at -10395'. Fullbore 1. RU to pump down the tubing and take returns from the IA. Pump the following: ➢ 5 bbl McOH ➢ 50 bbl hot (160 deg) freshwater + surfactant; 2 gal/mgal F103 and 2 gal/mgal UO67 ➢ 778 bbls 9.8 ppg brine ➢ 12 bbls of 60/40 FP ( U-tube FP after pumped ) ➢ With the PC Leaks in this well may not get full returns to surface, the above brine volume is -50 bbls over calculated. 2. Pump cement plug as follows down tubing. The target TOC in the tubing and IA will be at 3300'. ➢ 5 bbls MEOH ➢ 5 bbls freshwater spacer ➢ 504 bbls 15.8 ppg cement per design ✓ ➢ Foam wiper ball ➢ 2 bbls FW ➢ 7 bbls 9.8 ppg brine ➢ 10 bbls of 60/40 FP ( U-tube FP after pumped Cement Type/weight: Class G 15.8 ppg mixed on the fly. Field blend to be =lab ppg +/- 0.1 ppg Slurry Temperature: between 80° and 110°F Fluid Loss: 40-200cc (20-100cc/30 min) Compressive Strength: 2000 psi in 48 hrs. Thickening Time: Minimum 6 hours Slickline / Fullbore 1. Tag TOC Z,'Yi2r' A, � T ,�OCreG> -1ro— !.v' lTiX6�S G /% 2. CMIT TxIA to 2500 psi 3. Perforate 2-7/8" tubing and 9-5/8" casing at 2300 ft. Fullbore 1. RU to pump down the tubing and take returns from the OA to remove crude from annulus. ➢ 70 bbls hot (160F) diesel 14 bbls hot (160F) 9.8 ppg brine ➢ SD for one hour to let diesel soak in OA and thin out crude v 50 bbls hot (160 deg) freshwater + surfactant; 2 gal/mgal F103 and 2 gal/mgal UO67 ➢ —175 bbls hot (160F) 9.8 ppg brine ➢ U-tube freeze protect as necessary 2. Pump cement plug as follows down tubing and up the OA. 5 bbls MEOH 5 bbls freshwater spacer / 150 bbls 15.8 ppg cement per design ✓ 3. RU to pump down the tubing and take returns from the IA. ➢ 175 bbls 15.8 ppg cement per design 7 Cement Type/weight: Class G 15.8 ppg mixed on the fly. Field blend to be =lab pp +/- 0.1 pp Slurry Temperature: between 80° and 110°F Fluid Loss: 40-200cc (20-100cc/30 min) Compressive Strength: 2000 psi in 48 hrs. Thickening Time: Minimum 4 hours Special Projects 1. Excavate and Cut off all casings and wellhead 3' below original tundra level. Top job the 20" annulus and all other annuli and tubing with cement as needed. //�� /% 2. AOGCC witness cement tops in all annuli t --A, 1`//e Gym"' 3. Bead weld marker cap on outermost casing string (Conductor) to read as follows: BP Exploration Alaska, Inc. L4-12 PTD # 191-118 API # 50-029-22216-00 1-4-12 Cement Plug Volume Calculations bbl/ft Btm Too Footage Volume 2-7/8" Tbg 1 7095 41.2 0.0058 10457 10424 33 0.2 4-1/2" Tbg 0 0.0152 14696 10457 4239 64.4 7-5/8" Ln r x 4-1/2" Tbg 0.0262 12585 10576 2009 52.6 9-5/8" Csg x 4-1/2" Tbg 0.0535 10576 10478 98 5.2 Plue 300.6 Calculated Volume for 1st Cement Plug 122.5 bbl/ft Btm Tao Footage Volume 2-7/8" Tbg 0.0058 1 10395 1 3300 1 7095 41.2 9-5/8" Csg x 2-7/8" Tbg 0.0652 1 10395 1 3300 1 7095 462.6 Calculated Volume for 2nd Cement Plug 503.7 4 bbl/ft Btm Top Footage Volume 12-7/8" Tbg 0.0058 1 2300 0 2300 13.3 9-5/8" Csg x 2-7/8" Tbg 0.0652 2300 0 2300 150.0 13-3/8" Csg x 9-5/8" Csg 0.0597 2300 0 2300 137.3 Calculated Volume for 3rd Cement Plue 300.6 4 Wellbore N Minimum ID = 2.26" @ 10469' OTIS XN NIPPLE PROFILE 1 2-7/8- TBG, 8.50, L-80,.0058 6p1, D= 2.441" H 10457' 1 Flff LOG: ATLS ZCUCN ON 1029191 ANGLE AT TOP RiE: 83 ®12577 Nab: Re/er to Roductbn OB /or historical oerl data 4.12' I PFEDRLL I 13665 - 14192 I C 111/0291 4-12' RE-DRL 14233-14926 C 11/02/91 SAFETY NOTES: CAT 1988V. WS (PPM) 1000. WELL '.. `OC�OPE 1O06MMIL t35SYQ2,60 L4-12 CHEMICAL NEINM MAN XBiS GAS LFT MANDRELS ST MD TVD DEV TYPE I VLV LATCH PORT DATE 1 2850 2742 32 TL-jE 13665'- 14197 TG 14197-14233' 2 6201 5000 53 TET(1PD W 3 6951 667851 TETGPD TG 4 104M 7576 53 TETGPD TG W XN PROF, DPZ 1: 1872 ft — 9620 ft DPZ 4: 12557 ft — (did not see base of DPZ in wellbore) 5 41/2*PIS DFI ILLEDLNR DETAIL DATE PEV BY COWENTS DATE REV BY 00M.@4TS ILSBUtE 10493 - 12577 SOLD LTR 05/02/06 Tf3lPJC SET %Xt-1 PLUG 010459' 12577 13625' PIC -M1.® LW FP Exploration(Alaska) 13625'-136W SOLDI-N2 13665'- 14197 P1'50131® LNR 14197-14233' SOLD LPR 14233 - 14926' RS[Po-LED LW DPZ 1: 1872 ft — 9620 ft DPZ 4: 12557 ft — (did not see base of DPZ in wellbore) 5 UNIT VALL 1.412 FEF*ATIb:1911180 AR No: 50-02322216-00 SEC 24, T11µ RISE 2137 FSL d 2117' FEL DATE PEV BY COWENTS DATE REV BY 00M.@4TS ILSBUtE 11104191ORGINALCOMPLEIIDN ONx1 04114 K"W RESET 2-7/8-XXN PLUS IM 1) 01/18/04 JWTLH CA DATSOZ(O828AJ) 05/02/06 Tf3lPJC SET %Xt-1 PLUG 010459' I06 ISMR BRCTlTI.F1 PLUG LL® 03104107 RL JDATIMNU FP Exploration(Alaska) 06101A5 TFARLH I XXN PLUG SET (0400M) DPZ 1: 1872 ft — 9620 ft DPZ 4: 12557 ft — (did not see base of DPZ in wellbore) 5 inal Wellbore with Estimated Annl N'B.11 EAD= ACRIATOR= bKB. a" = BF. e.LV = FMC A7(9_SON 56.9 20.8' VIM= 1500 Ma Anga = 91' ®13195' DMtuMA.m= 14757 DatumTVD- 8900 SS Crude in 13-3/8" x 9-5/8" csg annulus Surf to 3355' May -06 PC Leak ID'd @ 8425', 8440' and 10404' LIR -2.5 bpm @2200 psi Minimum ID = 2.26" @ 10469' P OOC i X2- NIPPLE PROFILE Est TOC in 12-1/4" hole x 9-5/8" csg @ "9863' 183 LOG AILS ZMJCN ON 102991 ANGLE AT TOP FEW: 83 45 12577 Mte: Wer b Producdon M for litorieai oar/ date -14192 C 4-12' I RE -OWL 114 5- 14926 I C 111/0291 7-5/8" Liner fully cemented to LTP @ 10576' SAFETY 410705: CAT 1 SSSV. 1QS (PPM) 1880. WELL _.. AO�7 ON200 •CAMCOTRSSSV�2190 L4-12 T1TTT 4-1/2" Liner un -cemented GAS LFT ARldBS ST I M0 I TVD I DEV I TYPE I VLV I LATMI PORT DOTE 1 2850 2742 32 TETGPD TG 2 6201 5806 53 TETGFD w 3 89.51 6678 51 TE-TGPD TG 4 10404 7576 53 TE-TGPD TG TIW SBRISLKSTK M XN PROF, D = 1 10478' H9-SI8• X 4-1rz• TIN SS 110192 ROi 0= 4.750• I 4-12' PIEDFOLLI®LML UTAK 10493'-12577 SOLDLW 12.577- 13MV Pr87Q31® LIR 13625' - 13865' SOLD LFR 13665'. 14197 PFEDRLLED LIR 14192'-1423Y SOLD LM 14233- 14926' R661111ED LIR D=3.956' H 149e' DPZ 1: 1872 ft — 9620 ft DPZ 4: 12557 ft — (did not see base of DPZ in wellbore) R USBUdE LINT WELL 1-4-12 FEIW NO '1911780 ARM: 50-029-2221600 SEC 24, TI 1K 1415E 2137 FSL A 2117' FEL DATE REV By COMLBRS DATE REV BY C77M@BS 11414191 ONGSML COMPLETION 00104114 MIGJIAR6EI'2-7/8'XXNFLLJG(729//4) 07/19104 JMILH oA ov*4sQZ (o92aw) 05102A16 TT3JPJC SET XXN PLUG @ 10459 09/1/1109 RCTRLH RUG PLLLED 0304107 Fa- DATtMAD l Eirploratlon(Alaska) 0601/09 TFAITLH XXN PLUG SET (040M) DPZ 1: 1872 ft — 9620 ft DPZ 4: 12557 ft — (did not see base of DPZ in wellbore) R L4-12 Proposed Cmt in OA, IA & Tbg from 2300 ft to Surface Crudein 13-3/8"x9-5/8"Annulusfrom 3355 ft to-230Oft 13-3/8" x 9-5/8" Cmt 3355ft .. 13-3/8" Csg Shoe @ 3855 ft May -06 PC Leak 8425ft,844Oft, _ & 10404 ft 12-1/4"x9-5/8" Est. TOC 9863 ft Tbg Punch @ 1O395ft 4 Tbg Punch @ 1050Oft-10505 ft 7-5/8" Liner fully cemented 9-5/8" Shoe @ 10913 ft 7-S/8" shoe @ 12585 ft DPZ 1: 1872 ft — 9620 ft DPZ 4: 12557 ft — (did not see base of DPZ in wellbore) Calc/ Estimated Cement behind pipe Cement added for P&A Perf Tbg -23OOft Cement Plug- 3300 ft -10395 ft 2-7/8" X Nip @ 10424 ft TIW Overshot @ 10457 ft --- 4-1/2"SBR/ SlkSbc@10459ft 9-5/8" x 4-1/2" Pkr @ 10478 ft -- 7-5/8"LinerTop@10576ft 4-1/2" PreDrilled Lnr @ 14969ft)noncmtd) 7 BP EXPLORATION (ALASKA) INC., PRUDHOE BAY UN LIS 1-4-12 (191-118) PRUDHOE BAY, LISBURNE OIL Monthly Production Rates 10,000,000 - 10,000,000 Cum. Prod Oil (bbls): 634,891 Cum. Prod Water (bbls): 34,377 Cum. Prod Gas (mcf): 6,239,105 I W Gl 1,000,000 - __ _ ----- 1,000,000 r V -- •__ _ i.. �._ M O a 1 a CL 100,000 d - _ ... 00,000 �— eP ° r o om°ne e?een m e - —. f�D U Oae m ° o ° O ° o'cv •� e e o `)� 0.2 .o°S' a .. N 10,000�� _ 10,000 .�. O@ -¢ �r bl v o �. o _ t O m e oho 'le ocbc9d�'I¢y ;. v1.000 _ e ° ♦ -�0 0 0 0 �> - - _.---- 1,000 ut O 3 _ 9 opp 000a - o° 8 ° C o i o 0 o p oe �--,' ry m 100 - —. n °p p° °._ 100 > >Oo o p a 10 10 S Jarp1990 Jan -1995 Jan -2000 Jan -2005 Jan -2010 Jan -2015 Jan -2020 .— Produced Gas.(MCFM) • GOR Produced Water (BOPM)-- Produced Oil (BOPM) SPREADSHEET_Prod-I nject_Cu Nes_Well_V 119_1911180_PB U_L4-12_20190327.xlsx 3/27/2019 • • bp BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519 -6612 S_ May 20, 2012 $E AUG 7 3 `1012 Mr. Jim Regg 1 Q' Alaska Oil and Gas Conservation Commission 1 v 333 West 7 Avenue Anchorage, Alaska 99501 L. 1.4- '- F Subject: Corrosion Inhibitor Treatments of GPMA Lisburne 4 Dear Mr. Regg, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPMA L4 that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my altemate, Gerald Murphy, at 659 -5102. Sincerely, Mehreen Vazir BPXA, Well Integrity Coordinator • • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10-404) GPMA Lisburne 4 Date: 05/0312012 Corrosion Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # cement pumped cement date inhibitor (gal) sealant date L4-02 1891040 50029219780000 3 NA 3 NA 20.4 6/16/2011 L4-03 1880670 50029218310000 Dust cover NA NA NA NA NA L4-10 1891120 50029219830000 Dust cover NA NA NA NA NA L4-11 1880840 50029218460000 Dust cover NA NA NA NA NA — L4-12 1911180 50029222160000 0.8 NA 0.8 NA 5.1 6/16/2011 L4-14 1890980 50029219730000 1.2 NA 1.2 NA 6.8 6/14/2011 L4-15 1830710 50029209520300 50 12.0 5 9/4/2011 45.9 5/3 /2012 L4-18 1880830 50029218450000 0.7 NA NA NA Sprit Conductor NA L4-30 1881010 50029218600000 0.5 NA NA NA Split Conductor NA L4-31 1890840 50029219660000 0.1 NA 0.1 NA 0.9 6/20/2011 L4-32 1911060 50029222050000 Dust cover NA NA NA NA NA L4-36 1910880 50029221890000 0.9 NA 0.9 NA 5.1 6/14/2011 R1:. '-' .... rv .:. u AUG 0 8 2006 SC~_~I"'" \IIska Oil & Gas Cons. commiHian NO. 3883 Anchorage Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 A TTN: Beth ¡Cd -I(~ f\' 'rc~ f;\. ,'\V-·j Company: State of Alaska Alaska Oil & Gas Cons Comm AUn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Well Job# Loa DescriDtion Date BL Color CD NK-43 11211388 PROD PROFILE W/DEFT 04/02/06 1 NK-22A 1u568415 pRoD PROFILE W/DEFT UZl26/UJ 1 L4-12 N/A WFULDL 05/09/06 1 L2-21A 10670034 MEM PROD PROFILE 09/20/04 1 13-06A 11217266 INJECTION PROFILE 07/12/06 1 01-17B 11209602 MEM PROD PROFILE 04/27/06 1 09-08 11296705 INJECTION PROFILE 07/21/06 1 09-19 11296704 INJECTION PROFILE 07/20/06 1 09-25 11296703 INJECTION PROFILE 07/19/06 1 04-09 11211398 INJECTION PROFILE 04/28/06 1 04-10 11211380 INJECTION PROFILE 03/23/06 1 17-21 11223104 PROD PROFILE W/DEFT 03/22/06 1 18-03B 11057071 SBHP 12102/05 1 X-15A 11212877 US IT 07/18/06 1 J-01B 11511430 USIT 07/24/06 1 15-12A 11221595 USIT 07/25/06 1 Z-14B 11217268 USIT 07/29/06 1 S-400 10987564 CH EDIT PDC-GR OF USIT 01/26/06 1 D-03A 11217269 USIT 07/31/06 1 05-28A 11217267 USIT 07/28/06 1 Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth 08/01/06 . . FW: L4-12 Re-classified as Trouble well e e pTb'~\ '1' (- c& Sub.iect: FW: L4-12 Rc-dassificd as Trouhle well From: "!'\SLJ, ADW Wclllntegrity Engineer" <;\iSLJADWWelllntcgrityEnginccr((DBP.com> Hate: Sat, 15 Oct 2005 16: 11: 14 -0800 'V,wl (f~'Z.~/ù.) To: jimJcgg@admin.state.ak.us, winton_aubcrt(í:l)admin.state.ak.us, "Rossberg, R Steven" ''''-'7'/ <RossbcRS@BP.com>, "Engel, Harry R" <EngcIHR@BP.com>. "GPB, GPMA Area Mgr" <GPBGPV1ATL(fÜBP.com>, "OPB, LPC DS Ops Lead" <GPßLPCDSOpsLcad@BP.com>, "Parker, R. Andrew" <ParkerRA@BP.com>, "Kincaid, Lcg" <les.kincaid@~BP.com>, "Kurz, John" <john.kurz(@BP.com.>, "GPB, Wells Opt Eng" <GPBWcllsOptEng@BP.com>, "GPB, Optimization Engr" <GPBOptimi/.ationEngr@BP.com>, "NSLJ, ADW Well Operations Supervisor" <NS U ADWW eIIOperationsSupervisor@BP.com> CC: "Mielkc, Robert L." <roberLmiclke@BP.com>, "Hughes, Andrea (VECO)" <hugha4@BP.com>, "Holt, Ryan P (VECO)" <Ryan.Holt@)BP.com>, "~SU, ADW Well Intcgrity Engineer" <!\is UADWW elllntegrityEngincer@BP.com> j-éJ:£-L Hello all. Well L4-12 has been classified from Waiver to Trouble well. Brine loads have not maintained the IA in a no-flow state. The well will be 81 until a suitable IA load is executed. Mark/Rob: Would you please ensure the L4 Operator removes any waiver related signage from the well house. Please call with any questions. Joe 1-907-659-5102 ~AJNJ~~t.L) From: Hughes, Andrea (VECO) Sent: Saturday, October 15, 2005 2:56 PM To: Kincaid, Les Cc: NSU, ADW Well Integrity Engineer; Julian, Jennifer Y; NSU, ADW Well Operations Supervisor Subject: L4-12 Re-classified as trouble well Les- After review with Jerry and Joe, we decided to reclassify L4-12 from Waivered to Trouble status. Because the well recently failed a LNFT-IA, it is not in compliance with its current waiver requirements. It appears that previous brine loads have not maintained a no -flow status. Until a more viable solution for mediating flow to surface has been reached, our plan forward is to shut-in and freeze protect the well. Please call if you have any questions. Thanks- Andrea Hughes Well Integrity Engineer Office: (907) 659-5525 Pager: (907) 659-5100 x1242 1 of 1 12/22/20054:34 PM - (STATE OF ALASKA (' ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed: Abandon 0 SuspendD Operation Shutdown 0 Perforate 0 WaiverD OtherD Alter CasingD Repair WellŒJ Plug PerforationsO Stimulate D Time ExtensionO Change Approved ProgramD Pull TubingD Perforate New Pool 0 Re-enter Suspended Well 0 2. Operator 4. Current Well Class: 5. Permit to Drill Number: Name: BP Exploration (Alaska), Inc. 191-1180 Development ŒJ ExploratoryD 3. Address: P.O. Box 196612 6. API Number Anchorage, Ak 99519-6612 Stratigraphic 0 ServiceD 50-029-22216-00-00 7. KB Elevation (ft): 9. Well Name and Number: 56.00 L4-12 8. Property Designation: 10. Field/Pool(s): ADL-028338 Prudhoe Bay Field / Lisburne Oil Pool 11. Present Well Condition Summary: Total Depth measured 14969 feet true vertical 8999.2 feet Plugs (measured) None Effective Depth measured 14969 feet Junk (measured) None true vertical 8999.2 feet Casing Length Size MD TVD Burst Collapse Conductor 80 20" 91.5# H-40 30 - 110 30.0 - 110.0 1490 470 Liner 4499 4-1/2" 12.6# L-80 10470 - 14969 7609.2 - 8999.2 8430 7500 Liner 2009 7-5/8" 29.7# L-80 10576 - 12585 7680.2 - 8763.0 6890 4790 Production 10881 9-5/8" 47# L-80 32 - 10913 32.0 - 7887.0 6870 4760 Surface 3824 13-3/8" 68# L-80 31 - 3855 31.0 - 3492.6 4930 2270 Perforation depth: Measured depth: 12572 -13625,13665 -14192,14233 -14926 E \VE,D True vertical depth: 8761.5" 8813.95,8819.36 - 8884.24,8888.61 - 8990.71 RE. C '1 0 2\)\)4 Tubing (size, grade, and measured depth): 2-7/8" 6.5# L-80 @ 34 - 10476 J~N JJ . . n corom\SS\O . & Gas 'Co"S. Packers & SSSV (type & measured depth): 2-7/8" Camco TRDP-1A SSV @ 2180 MasKa 0\\ \}e 4-1/2" TIW SS Horiz Packer @ 10479 ~ntnO{a 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13 Representative Dailv Averaae Production or Iniection Data Oil-Bbl Gas-Mef Water-Bbl Casino Pressure Tubino Pressure Prior to well operation: 459 5.4 28 100 907 Subsequent to operation: 436 5.3 18 0 910 14. Attachments: 15. Well Class after proposed work: Exploratory 0 DevelopmentŒ) ServiceD Copies of Logs and Surveys run - 16. Well Status after proposed work: Operational Shutdown 0 OilŒJ GasD WAG D GINJD WINJD WDSPLD Daily Report of Well Operations. ! Prepared by Garry Catron (907) 564-4657. 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 Garry Catron . .. . NI A Printed Name Garry Catron Title Production Technical Assistant Signature Phone 564-4657 Date 1/16/04 Form 10-404 R:,};:;,;i~)b JAN 2 12004 0 RIG \ N A L --ilFL JAN 21 200~ . . . ( ( L4-12 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 08/22/03 TIIIO = 20201100/200. IA Brine Load. (PC Leak). Pumped 385 bbls. 9.9# Inhibited NaCL Brine down IA @ 2.3 BPM @ 2350-2450 psi. F/P WI 10 bbls. 60/40 meoh. Final WHP = 2020N AC/320. 08/28/03 T/I/O=2000NAC/260. OA Downsqueeze. (PC Leak Waiver). MIRU Dowell to OA. Held PJSM PT to 3000 psi. Start down OA with 10 bbls methanol 20 bbls CW-101 Surfactant at 3.4 BPM. Incresed rate to 7.0 BPM and continued to pump 300 bbls of Fresh Water 15 bbls CW-101 and 5 bbls Fresh water Spacer. Pumped 29 bbls of arctic set 1 with 1/4# per sack of celloflake and 5 bbls fresh water spacer at 4.0 BPM. Displace cement with 185 bbls crude @ 5.5 BPM at 175 bbls crude away dropped rate to 1.0 BPM fro 5 bbls, cut rate to .5 BPM for the last 5 bbls. SID pumps and monitor OAP for 15 minutes OAp slowly decreased to 750 psi. RID MOL. Est cement top @ 3355'. Final WHP's = 2000NAC/750. 08/30103 TIO= 2140/vac/vac. LNFT -IA Passed (Eval PC Waiver). IA is on a vacuum. IA & OA FLs near surface. 08/31/03 TIIIO=20001010 --- (Post Cement Down Sqz) MIT OA to 3000 psi---PASSED--- OAP'd up wI 5 bbls Crudel Performed 6 MIT OA'sI First 5 MIT's never show pressure stabilization in second 15 min./ 6th MIT Lost 20 psi in 15 min with total loss of 30 psi in 30 min. Final WHP's = 20001010. FLUIDS PUMPED BBLS 20 Methonal 35 CW -101 Surfactant 480 Fresh Water 29 Arctic Set 1 wI 1/4# per sack Celloflake Cement 385 9.9 brine 191 Crude 576 TOTAL Page 1 ( ( TREE = 2-9/16" Frv'C Wa.LHEAD = Frv'C SAFETY NOTES: CAT I SSSV. H2S (PPM) 1000. WELL A CfUA.TOR = AXELSON L4-12 ANGLE>Ut@12400'&>90o@1319S'.*CAMCO KB. ELEV = 56.0' TRSSSV @ 2180' LOCKID OPEN ON 06106198. **PROD BF. ELEV = 20.8' CSG LEAK. OPERATIOO LIMITS: MAX lAP = 500 PSI; MAX KOP = 1500' OAP = 1000 PSI (09/04103 WAIVER)** Max Ange = 91 @ 13195' DatumMD= 13944' Datum ND = 8800' SS 2-7/8" CA-TRIF-1A-SSA TRSSSV ,ID = 2.31 2:' ST tvÐ ND PORT DATE 13-3/8" CSG, 68#, L-80, ID = 12.415" 1 2850 2742 2 6201 5000 3 8951 6678 4 10404 7576 Minimum ID = 2.25" @ 10459' OTIS XN NIPPLE PROFILE 2-7/8" OTIS X NIP, ID = 2.313" 12-7/8" TBG, 6.5#, L-80,.0058 bpf, D = 2.441" I 10457' - TIW OVERSHOT SEAL ASSY, ID= 2.25" I 4-1/2" TIW SBRlSLKSTK W/ XN PROF, ID = 2.25" 9-5/8" X 4-1/2" TIW SS I-K:>RIZ A<R, ID = 4.750" 9-5/8" X 7-5/8" BKR LNR HGR TOPOF 4-1/2" SOLID LNR, ID= 3.958" 19-5/8" CSG, 47#, L-80, D = 8.681" I PERFORA 1l0N SUMMA.RY REF LOG: ATLS ZI1/CN ON 10/29/91 ANGLEAT TOP PERF: 83 @ 12572' I\bte: Refer to A'oductbn œ for historieal perf data 4-1/2" PRE-DRILLED LNHETAIL SIZ E SPF INlERV A L Opn/Sqz DATE 10493' - 12572' SOLID LNR 4-1/2" ffiE-DRLL 12572-13625 0 11/02/91 12572' - 13625' ffiE-DRLLED LNR 4-1/2" ffiE-DRLL 13665-14192 0 11/02/91 13625'-13665' SOLlDLNR 4-1/2" ffiE-DRLL 14233-14926 0 11/02/91 13665'- 14192' ffiE-DRLLED LNR "''''... 14192'-14233' SOLlDLNR ... "'... 14233'- 14926' ffiE-DRLLED LNR "', ' 7-518" LNR, 29.7#, L-80, ID = 6.875" " '",,- , ... " "" " " , , " '... , ... , ... , ... ... ... ... ... ... 4-112" LNR, 12.6#, L-80, .0152 bpf, D =3.958" DA lE REV BY COMtvENTS DA TE REV BY COMMENTS LISBURNE UNIT 11/04191 ORIGINAL COMPLETION WELL: L4-12 11/26/01 CH/W CORREC1l0NS ÆRMT I\b: 1911180 09/04/03 JLAIKK WA IVER SA FETY NOTE APII\b: 50-029-22216-00 SEC24, T11 N, R15E, 2132' FSL & 2117' Fa., 8P Exploration (Alaska) STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS ,1. Operations performed: Operation shutdown Pull tubing __ Alter casing __ Stimulate __~ Plugging __ Perforate Repair well__ Other __ 2. Name of Operator ARCO Alaska, Inc. 3. Address P.O. Box 100360, Ancho.rage, AK 99510 4. Location of well at surface 2132' FSL, 2117' FEL, Sec. 24, T 11N, R 15E 5. Type of Well: Development X__ Exploratory __ Stratigraphic __ Service __ 6. Datum elevation (DF or KB) · (~%- 7. Unit or Property name Prudhoe Bay / Lisbume 8. Well number L4-12 At top of production interval 942' FNL, 1037' FWL, Sec. At effective depth 942' FNL, 1037' FWL, Sec. At total depth 1215' FSL, 1973' FWL, Sec. 18, T 11N, R 16E 18, T 11N, R 16E 7, T 11N, R 16E 9. Permit number/approval number 91-118 / 92-265 10. APl number 500292221600 11. Field/Pool Lisburne Pool feet 12. Present well condition summary Total Depth: measured: true vertical: Effective Depth: measured: true vertical: Casing Length Conductor 80' 3825' Surface Intermediate 10883' Liner 4498' Perforation depth: measured None -Predrilled liner true vertical Tubing (size, grade, and measured depth) 2 7/8" L-80, tbg w/tail @ 10478'MD Packers and SSSV (type and measured depth) Pkr. @ 10478'MD and SSSV @ 2180' MD 14969 feet Plugs (measured) None. 9306 feet 12555 feet Junk (measured) None. 8760 feet Size Cemented Measured depth 20" 44 sx Acrtiset 110' 13 3/8" 2982 f¢ Permafrost & 400 3855' ft3 G 95/8" 440 ft3 Class G 10913' 41/2" uncemented 10471-14969' True vertical depth 110' 3493' 7886' 7616-9306' 13. Stimulation or cement squeeze summary Intervals treated (measured) Treatment description including volumes used and final pressure Stim job done on 11/9/92 with 1750 bbls 70:30 15% HCl:Crude (Emulsified Acid) and 2050 bbls gelled water 14. 15. Prior to well operation Subsequent to operation Attachments Copies of Logs and Surveys run Daily Report of Well Operations Representative Daily Average Production or Injection. Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure 381 1886 501 2380 Tubing Pressure 7 528 128 519 i16. Status of well classification as: Oil X Gas ___ Suspended 17. I hereby certify that th_.e foregoing isAtrue.,~nd correct to the best of my knowledge. S i~tned S.R Bro~Jr ~. ~~ O/A Engineer Form 10-404 Rev 06/15/88 Service Date December 7, 1995 SUBMIT IN DUPLICATE\~ Lisburne Well L4-12 Stimulation Summary 10 / 29 / 92 Shut-in well. Rigged up wireline and dummied out gas lift valves. The tubing/casing annulus was loaded with seawater. 11 / 3-5 / 92 Rigged up service company to pump stimulation fluids. Acidized Wahoo 6, Wahoo 5 and Wahoo 4 with the following stimulation fluids: · 1750 BBL Emulsified Acid (70:30 15% HCl:Crude) · 2050 BBL Gelled Water · 1282 MCF Nitrogen Foam (Well control was provided by surface chokes and production valves.) Released service company. 11/6/92 Rigged up wireline and installed a new gas lift design. Attempted and failed to bring well on production. 11 / 7-8 / 92 Numerous attempts were made to unload the well and bring on production. After tubing/casing annulus and tubing were displaced with gas lift, well was successfully brought on production. INDIVIDUAL WELL GEOLOGICAL INVENTORY REPORT PERMIT DATA DETAIL 91-118 DIL/FL/GR 91-118 EPM 91-118 EPM 91-118 GCT 91-118 GR 91-118 GR 91-118 GR 91-118 GR 91-118 91-118 MUD-IFT MUD-IFT 91-118 PDT 91-118 91-118 91-118 91-118 91-118 91-118 91-118 91-118 91-118 91-118 91-118 91-118 91-118 91-118 RWD-DPR/GR RWD-DPR/GR SPECTRALOG TEMP/PRESS ZDL/CNL/GR 407 DAILY WELL OP REPORT SURVEY SURVEY DRY DITCH 5118 5136 5137 R1,2&5",12380-14948 2"MD 2"TVD R2,58-12473 2"TVD,12588-14969 2"TVD,12588-14969 5"MD,12588-14969 5"TVD,12588-14969 2"MD,10000-14970 2"TVD,10000-14970 MD & TVD 2&5"MD,9788-12521 2&5"TVD,9788-12521 R1,2&5",12380-14882 R1,2&5",100-11100 R1,2&5",12380-14912 COMP DATE:Il/04/91 09/22/91-11/04/91 FINAL WELL SS DIRECTIONAL SS DIRECTIONAL 10000-14970 DIFL/SZDL/CN-GR GCT DIRECTIONAL MWD,9792-12590 09/14/1993 PAGE: 1 INDIVIDUAL WELL GEOLOGICAL INVENTORY REPORT PERMIT DATA DETAIL %re well tests required? ~as well cored? Yes ~.. Yes ~ If yes, was the core analysis & description received? Yes No %re dry ditch samples required? Yes ~o3 ~ELL IS ON COMPLIANCE. /~Y<--~ INITIAL 09/14/1993 PAGE: 1 COMMENTS: , STATE OF ALASKA ALA',.. . OIL AND GAS CONSERVATION COMMISSIO~ APPLICATION FOR SUNDRY APPROVALS Abandon Suspend Alter casing.. Repair well Change approved program ..... Operation shutdown Re-enter suspended well Plugging Time extension... Stimulate_~._X Pull tubing Variance Perforate___ Other 2. Name of Operator ARCO ALASKA INC, 3. Address P.O. BOX 100360 ANCH. AK 99510-0360 5. Type of Well: Development~ Exploratory Stratigraphic Service 4. Location of well at surface 2132 FSL, 2117' FEL, Sec. 24, T11 N, R15E,UM At top of productive interval 942' FNL, 1037' FWL, Sec. 18, Tll N, R16E, UM At effective depth 942' FNL, 1037' FWL, Sec. 18, T11 N, R16E, UM At total depth 1215' FSL, 1973' FW/, Sec. 7, T11N, R16E, UM 6. Datum elevation (DF or KB) RKB 56' feet 7. Unit or Property name Prudhoe/Lisbu rne Un it 8. Well number L4-12 9. Permit number 91-118 10. APl number 50-029-22216 11. Field/Pool LISBURNE OIL POOL 12. Present well condition summar, y Total depth: measureo 14969' feet true vertical 9306' feet Plugs (measured) NONE Effective depth: measured 12555' feet true vertical 8760' feet Junk (measured) NONE Casing Length Structural Conductor 80' Surface 3825' Intermediate 10883' Production 1996' Liner 4498' Size Cemented Measured depth 20" 44 sx Arcticset 110' 13-3/8" 2892 ft3 Permafrost & 400 ft3 G 3855' 9-5/8" 440 ft3 Class G 10913' 7-5/8" 339 ft3 Class G 10589' - 12585' 4-1/2" uncemented 10471 ~ 14969' True vertical depth 110' 3493' 7886' 7688- 8767' 7616-9306' Perforation depth: Measured Depth True Vertical Depth Tubing (size, grade, and measured depth) 2-7/8" L-80, tbg w/tail @ 10478' md Packers and SSSV (type and measured depth) Pkr @ 10478' md and SSSV @ 2180' md None - Pre drilled liner 13. Attachments Description summary of proposal X_.~_ Detailed operations program BOP sketch 14. Estimated date for commencing operation November 02, 1992 16. If proposal was verbally approved Name of approver Date approved 15. Status of well classification as: Oil_T,.. Gas~ Suspended Service 17. I hereby certify that t~h.e foregoing is true and correct to the best of my knowledge. ned -~ ~ /'~'~ ~'~~. T.E. Krawietz Title: Sr. Operation Enqr. ATO 484 LJ ' FOR COMMISSION USE ONLY Conditions of approval' Notify Commission so representative my witness Plug integrity BOP Test Location clearance Mechanical Integrity Test Subsequent form required 10- Approved by order of the Commission David W. Johnston Commissioner 06/15/88 Date Oct 30, 1992 No. Lisburne Well L4-12 Stimulation Procedure . . o MIRU slickline. Pull gas lift valves @ 10,404' md and @ 6,201' md and replace with dummy valves. Load 9 5/8 x 2 7/8 annulus. RU stimulation company. Well control provided by surface chokes and production valves. Acidize Wahoo 6, 5 and 4 through coiled tubing with the following stimulation fluids: . . . · 1,930 BBL 40 pptg guar gelled water with foaming surfactant · 1,750 BBL emulsified acid 30' 70 mixture (563 BBL crude' 1,313 BBL 15% HC1) · 1,424 MSCF N2 TOH with coiled tubing. Install gas lift valves. Release service company and open well to flow. Estimated Static BHP = 3,012- 3,262 psig at 8900' ss. REEEIVED DATE: FROM: May 18, 1992 Laura S. Lahrson ARCO ALASKA INC. LISBURNE ENGINEERING TRANSMll-I'AL~ ENCLOSED IS THE FOLLOWING DATA FOR LISBURNE: Log: Well Type 1 blueline, 1...sepia LGI-12"Leak Detection Survey L5-15 '"Production Profile Survey L5-24 /Production Profile Survey L4-12 '~Temperature/Pressure Log (2"&5") L4-36 ~/Production Log Run Run Date Company I 3/24/92 Camco I 5/03/92 Camco I 5/04/92 Camco I 5/10/92 Schlumberger 1 5/10/92 Schlumberger SIGN AND RETURN TO: LAURA S. LAHRSON, ATO 409 ARCO ALASKA, INC. P.O. Box 100360 ANCHORAGE, ALASKA 99510-0360 RECEIVED BY: Exxon BPX TRANSMITTAL # 660 AOGCC RECEIVED MAY ! 9 199Z D&M Naska Oil & Gas Cons. Oommissiol~ Anchorage "' STATE OF ALASKA 0 R I 6 IN A L ALASKA OIL AND GAS CONSERVATION COivlMISSION ~ WELL COMPLETION OR RECOMP LETION REPORT AND LOG , , 1. Status of Well Classitication of Service Well OIL IXl GAS [] SUSPENDED [] ABANDONED [] SERVICE [] 2. Name of Operator [7. Permit Number .ARCO Alaska, Inc. 91-118 3. Address 8. APl Number P. O. Box 196612, Anchorage, Alaska 99519-6612 5o- 029-22216 4. Location of well at surface 9. Unit or Lease Name 2132'FSL, 2117'FEL, SEC. 24, T11N, R15E .'~ ........... ~;"i.~;~' · ~.:~,~::~::'-~ ...... ~ ~ ,..~.~...i~~I Prudhoe Bay ILisburne At Top Producing Interval "' '~"~"~ ~'~:i~'!!~i ~ '"'~'?~ !t 10. Well Number ii';~'': ~ ~'~ 11.L4'12Field and Pool ..... 942' FNL, 1037' FWLSEC. 18, T, 'N, R,6E 1215'FSL, 1973'FWL, SEC. 7, T11N, R16E . ..... . ...... .-, ......... 5. Elevation in f~t (indicate KB, DF, etc.) ~6. Le~e Designation and Sed~l KBE= 56' ] ADL 2~38 wate~ 12. Date Spudded 13. D~e T.D. Re~ 14. Date Comp., Su~. ~ Aband. ~15. D~th, if offshore ~16. No. of Completions 9/21/91 10/28/91 11/~/91] N/A f~t MSL J ONE l~.'Total Depth (MD+TVD) 18. Plug Back D~th (MD+TVD~ 19. Directional Survey ~. D~th where ~SV set ]21. Thickness of Permafrost 14969'MD/9306' ~D 14969'MD/9306' ~D ~ ~ ~ ~~ 2180'feet MD ~ 1900' ~22. Ty~ El~tric or Oth~ L~s Run DIF~2D~DN/S~RB 23. CASI~, LINER ~D CEM~TI~ ~ ~ DEP~ MD CASING SIZE ~. PER ~. G~E T~ ~ ~E ~ C~~ R~D A~UNT ~LLED 20" 91.5~ H-40 Surface 11 O' 30" ~ sx Ar~icset ,. , 1~-3/8" 6~ L-80 Surface ~855' 16" 2892 cu ~ Permafrost F/40~ cu ~ Class"G" . , 9-5/8" 47~ L-80/MOD Su~ace 10913' 12-1/4" ~0 cu~ Class "G" 7-5/8" 29. 7~ H~dril ~S 10589' 12585' 8-1/2~ ~9 cu ~ Class "G" 4-1/2" 12.6~ BTC-M 10471' 14969' 6-~/4" Uncemented Liner ~4. Perorations o~n to Production (MD+TVD of T~ and ~ttom and 25. ~R~RD ' ' interval, size and number) SIZE DE~ SET (MD) PACKER SET (MD) None - SIo~ Liner 2- 7/8" 10~7' 10482' . , 26. ACID, F~C~RE, CEMENT ~UE~, ~C. "DE~TH 'INTERVAL (MD) A~UNT & KIND OF MATERIAL 27. ~O~T~N ~ST Date First Production ~Method of Operation (Flowing, gas lift, etc.) 11/24/91 ~ Gas U~ Date of Test Hours Tested ~O~T~ FOR 31L-BBL' GAS-~F WATER-BBL C~E~E IGAS-OIL RATIO TEST PER~D ~ I Flow Tubing Casing Pressure CALCU~TED OIL-BBL GAS-~F ~ATER-BBL 3IL GRAVITY-APl (corr) Press. 24-~UR RATE ~ 2~. cO~ Brief description of lithology, porosity, fracture, a~arent dips, and pr~ence of oil,'gas or water. Submit ~re chips. RECEIVED APR 1 AI~s~ Oil & ~s ~ons. ~n~h0rage Form 10-407 Rev. 7-1-80 CONTINUED ON REVERSE SIDE Submit in duplicate 29. 30. GEOLOGIC MARKERS , ,.,RMATION TESTS .... NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time o! each phase. Zone 6 12555 8760' Zone 5 12631' 9003' Zone 4 14224' 9137' 31. LIST OF ATTACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~ ~ _ Title Area Drilling Engineer Date INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indicate "none". REC~IV ~[~ Form 10-407 APR 1 5 992 ,Alaska Oii& 13as Oons. uu~t~-¢$¢.o° Anchora.qe BP/AAI SHARED SERVICE LISBURNE AUDI 2 ACTIVITY SUMMARY NORTH SLOPE L 4-12 AK ( 1) TD: 0' ( 0) SUPV: HOLE ANGLE: 0 0 MW: 0.0 VIS: 0 DAILY:SO CUM:SO ETD:SO EFC:$0 SURF DRIL: 9.2 TRIP: 3.5 CIRC: 0.3 OTHR: 11.0 09/22/91 ( 2) DRLG. MW: 9.0 VIS:260 TD: 735' ( 735) MOVE RIG. N/U DIVERTER. RIG ACCEPTED @ 10:00 HRS, 9/21/91. SUPV:JEH SPUDDED WELL @ 17'00 HRS, 9/21/91. DRLG F/ 118'-500'. HOLE ANGLE:78 36 CIRC. POOH. RIH. DRLG F/ 500'- 735' DAILY:S27,865 CUM:$27,865 ETD:$4~,365 EFC:$5,015,500 SURF DRIL: 18.8 TRIP: 3.7 RIGS: 0.5 PROB: 1.0 PROB CODE: EFC 09/23/91 ( 3) DRLG. MW: 9.2 VIS:190 TD: 1821' ( 1086) DRLG TO 1503'. POOH. RIH. WASH 90' TO BTM. DRLG F/ SUPV:JEH 1503'-1821' HOLE ANGLE:78 36 DAILY:S49,661 CUM:$77,526 ETD:S98,026 EFC:$5,015,500 SURF DRIL: 17.0 TRIP: 6.5 RIGS: 0.5 09/24/91 ( 4) DRLG. MW: 9.3 VIS:170 TD: 3497' (1676) DRLG TO 2533' POOH. RIH. WASH 90' TO BTM. DRLG F/ SUPV:jEH 2533'-3497' HOLE ANGLE:78 36 DAILY:S41,404 CUM:$118,930 ETD:S139,430 EFC:$5,015,500 SURF DRIL: 4.8 TRIP: 8.5 SURV: 0.2 CIRC: 3.5 CASG: 7.0 09/25/91 ( 5) CMT 13-3/8" CSG. MW: 9.5 VIS:130 TD: 3870' ( 373) DRLG TO 3870' POOH. RIH. CBU. POOH. RIH W/ 13-3/8" SUPV:JEH CSG. M/U CMT~D. CIRC. TEST CMT LINES. MIX CMT. HOLE ANGLE:78 36 DAILY:S68,817 CUM:$187,747 ETD:S208,247 EFC:$5,015,500 09/26/91 (6) TD: 3870'( 0) SUPV:JEH HOLE ANGLE:78 36 SURF DRIL: 1.2 TRIP: 2.3 RIGS: 1.0 CASG: 7.3 BOPE: 10.0 OTHR: 2.2 DRLG CMT, FLOAT EQUIP. MW: 8.6 VIS: 36 PUMP 1468 SX LEAD CMT @ 12.3 PPG, 348 SX TAIL CMT @ 15.8 PPG. DISP W/ 574 BBLS MUD. DID NOT BUMP PLUG. N/D DIVERTER. TOP JOB W/ 250 SX 'C' CMT. N/U TBG SPOOL, BOPE. RIH W/ BHA #6. TAG CMT @ 3786' TEST CSG. DRLG CMT, FLOAT EQUIPMENT. DAILY:S284,816 CUM:$472,563 ETD:S493,063 EFC:$5,015,500 P1 DRIL: 12.3 TRIP: 6.0 RIGS: 1.0 CIRC: 4.0 EVAL: 0.2 CASG: 0.5 09/27/91 ( 7) DRLG. MW: 9.4 VIS: 41 TD: 5550' (1680) DRLG FC, CMT TO 3853'. TEST CSG. DRLG CMT, FS, 10' NEW SUPV:JC HOLE. CBU. PERFORM LOT (11.5 PPG EMW). DRLG F/ HOLE ANGLE:78 36 3880'-4862' CBU. POOH. RIH. DRLG F/ 4862'- 5550' DAILY:S59,661 CUM:$532,254 ETD:S552,754 EFC:$5~015,500 RECEIVED Alaska Oil & Gas Cons. Cumr~Jssioi'~ Anchorage ACTIVITY SUMMARY BP/AAI SHARED SERVICE NORTH SLOPE AK LISBURNE L 4-12 AUDI 2 P1 DRIL: 20.2 TRIP: 1.8 SURV: 0.5 CIRC: 1.5 09/28/91 ( 8) CBU. MW: 9.6 VIS: 38 TD: 6628' (1078) DRLG F/ 5550'-5911'. CIRC. 11 STD SHORT TRIP. DRLG F/ SUPV:JC 5911'-6628' CBU. DROP SS SURVEY. HOLE ANGLE:78 36 DAILY:S42,134 CUM:$574,388 ETD:S594,888 EFC:$5,015,500 P1 DRIL: 18.5 TRIP: 4.5 OTHR: 1.0 09/29/91 ( 9) DRLG. MW: 9.6 VIS: 42 TD: 7660' (1032) POOH. CHANGE BHA. RIH. DRLG F/ 6628'-7660'. SUPV:JC HOLE ANGLE:78 36 DAILY:S45,649 CUM:$620,037 ETD:S640,537 EFC:$5,015,500 P1 DRIL: 16.5 TRIP: 7.0 CIRC: 0.5 09/30/91 (10) DRLG. MW: 9.6 VIS: 42 TD: 8450' ( 790) DRLG F/ 7660'-7787' SHORT TRIP TO 6628' DRLG F/ SUPV:JC 7787'-7988' CIRC. POOH. RIH. DRLG F/ %988'-8450'. HOLE ANGLE:78 36 DAILY:S63,061 CUM:$683,098 ETD:S703,598 EFC:$5,015,500 P1 DRIL: 13.8 TRIP: 9.0 SURV: 0.5 RIGS: 0.7 10/01/91 (11) DRLG. MW: 9.7 VIS: 38 TD: 9240' ( 790) DRLG F/ 8450'-9010'. SHORT TRIP TO 7988'. DRLG F/ SUPV:JC 9010'-9219' POOH. RIH. DRLG F/ 9219'-9240' HOLE ANGLE:78 36 DAILY:S50,038 CUM:$733,136 ETD:S753,636 EFC:$5,015,500 P1 DRIL: 14.5 TRIP: 1.0 SURV: 0.5 RIGS: 0.5 PROB: 7.5 PROB CODE: SP 10/02/91 (12) SPOT FISHING TOOL MW: 9.6 VIS: 40 TD: 9841' ( 601) DRILLING TO 9841'. POH. STUCK PIPE AT 7967' RIH W/FTA. SUPV:JH HOLE ANGLE:78 36 DAILY:S58,450 CUM:$791,586 ETD:S812,086 EFC:$5,015,500 P1 PROB: 24.0 PROB CODE: SP 10/03/91 (13) WORK STUCK PIPE MW: 9.6 VIS: 42 TD: 9841' ( 0) WORK STUCK PIPE @7967. PUMP LO-HI VIS SWEEP. SPOT 40 BBL SUPV:JH SACK FISHING TOOL PILL. WORK PIPE & JAR UP. PREPARE TO HOLE ANGLE:78 36 FREE POINT & BACKOFF DAILY:S50,303 CUM:$841,889 ETD:S862,389 EFC:$5,015,500 P1 RIGS: 0.5 PROB: 23.5 PROB CODE: SP 10/04/91 ( 14) LAY DOWN FISHING TOOLS MW: 9.6 VIS: 38 TD: 9841' ( 0) R/U DIS-LOG SIDE ENT. SUB & DRESSER, FREE POINT RIH SUPV:JH W/DRESSER 2 RUNS & BACK OFF AT 7810 POH & L/D JARS. ,PM. HOLE ANGLE:78 36 STAB. P/U FISHING TOOLS, SERV RIG. RIH TO 7819 SCREW INTO FISH & JAR FREE POH & LAY DI FOWLING TOOLS DAILY:S39,085 CUM:$880,974 ETD:S901,474 EFC:$5,015,500 ACTIVITY SUMMARY BP/AAI SHARED SERVICE NORTH SLOPE AK LISBURNE L 4-12 AUDI 2 P1 DRIL: 7.5 PROB CODE: EFC 10/05/91 (15) TD:10250' ( 409) SUPV:JH HOLE ANGLE:78 36 TRIP: 5.3 RIGS: 0.7 BOPE: 3.5 OTHR: 3.5 PROB: 3.5 DRILLING MW: 9.6 VIS: 42 P/U BHA & STAND BACK. RIG D/ATLAS WIRELINE. TEST BOPE. RIH TO13-3/8 SHOE. REPAIR TOP DRIVE. CUT DRILLING LINE. RIH & BREAK CIRC EACH 12 STNDS. REAM FROM 7550 TO 8100'. RIH TO BOTT AT 9841' DRILLING WITH BIT #10. DAILY:S82,663 CUM:$963,637 ETD:S984,137 EFC:$5,015,500 P1 DRIL: 11.3 TRIP: 5.2 CIRC: 3.0 CASG: 4.0 BOPE: 0.5 10/06/91 (16) RUNNING 9-5/8 CASING MW: 9.7 VIS: 42 TD:10918' ( 668) DRILLING TO 10918' CP. CIRC. SHORT TRIP TO 9841. CIRC & SUPV:JH COND MUD FOR 9-5/8 CASING. POH TO HW. CHANGE RAMS TO HOLE ANGLE:78 36 9-5/8. POH & L/D TELECO TOOLS. RIG UP FOR CASING RUN 9-5/8 CASING DAILY:S52,358 CUM:$1,015,995 ETD:S1,036,495 EFC:$5,015,500 P1 TRIP: 8.8 10/07/91 (17) TD:10918' ( 0) SUPV:JH HOLE ANGLE:78 36 CASG: 10.2 BOPE: 4.5 PROB: 0.5 PROB CODE: EFC REPAIR STD PIPE MW: 9.5 VIS: 37 RUN 9-5/8 CASING AND LAND SAME. CIRCULATE AND CEMENT AS ABOVE. SET PK. OFF & N/D BOP & INSTALL TUB. SPOOL, TEST AT 5K, N/U BOPE TEST BOPE & SET WEAR RING. LAY D/12-1/4 BHA. P/U 8-1/2 BHA & RIH TO FLOAT COLLAR AT 10828. REPAIR STAND PIPE. DAILY:S296,254 CUM:$1,312,249 ETD:S1,332,749 EFC:$5,015,500 P2 10/08/91 (18) TD:11338' ( 420) SUPV:JH HOLE ANGLE:78 36 DRIL: 10.7 CIRC: 11.7 OTHR: 1.3 PROB: 0.3 PROB CODE: EFC DRILLING MW: 9.5 VIS: 62 REPAIR STUD PIPE_ TEST 9-5/8 @3K@10828'. DRL., FLOAT COLLAR & CMT TO 10906'. TEST CSG. TO 3K# OK. CIRC.& CLEAN PITS. DISP. HOLE WITH OIL BASE MUD CLEAN PITS. DRLG. SHOE +10' NEW HOLE TO 10928' CBU. FIT @10928' 1233 PSI-12.5 EMW DRLG. WITH BIT #12 DAILY:S225,006 CUM:$1,537,255 ETD:S1,557,755 EFC:$5,015,500 P2 10/09/91 ( 19) TD:11955' ( 617) SUPV:JH HOLE ANGLE:78 36 DRIL: 14.0 TRIP: 7.7 RIGS: 0.3 CIRC: 1.0 OTHR: 1.0 DRILLING MW: 9.8 VIS: 68 ROTARY DRILL F/11338 - 11632. CIRCULATE BOTTOMS UP. DROP SINGLE SHOT SURVEY. POOH. DOWN LOAD TELECO MWD.L/D RWP. M/U BIT & MOTOR.ORIENT - TEST TELECO CUT DRILLING LINE. SERVICE RIG. RIH W/BHA %13. DRILL F/11632 TO 11955'. 3 HRS. ROT. 2 HRS. SLIDE DAILY:S152,222 CUM:$1,689,477 ETD:S1,709,977 EFC:$5,015,500 P2 DRIL: 15.0 TRIP: 8.0 CIRC: 1.0 10/10/91 (20) TRIPPING IN HOLE MW:10.3 VIS: 68 TD:12578' ( 623) DRILL FROM 11955 TO 12578'. ROTATE 8.75 HOURS. SLIDE 9.25 SUPV:JC HOURS. CIRCULATE BOTTOMS UP. POOH. CHANGE OUT TELECO MWD & HOLE ANGLE:78 36 BIT (PULLED SLOW IN 8-1/2 HOLE) TRIP IN HOLE W/NEW BIT. DAILY:S99,011 CUM:$1,788,488 ETD:S1,808,988 EFC:$5,015,500 ACTIVITY SUMMARY BP/AAI SHARED SERVICE NORTH SLOPE AK LISBURNE L 4-12 AUDI 2 P2 DRIL: 0.8 TRIP: 9.9 CIRC: 5.3 CASG: 7.5 BOPE: 0.5 10/11/91 (21) RIH WITH 7-5/8 LINER MW:10.5 VIS: 70 TD:12583' ( 5) RIH. CBU. DRLG F/12578 TO 12583. CBU SHORT TRIP TO SUPV:JC 11654'. CBU. POOH. R/U & RIH W/7-5/8" CSG. HOLE ANGLE:78 36 DAILY:S47,179 CUM:$1,835,667 ETD:S1,856,167 EFC:$5,015,500 P2 TRIP: 10.0 RIGS: 1.0 CIRC: 1.0 CASG: 10.5 BOPE: 1.5 10/12/91 (22) CIRC @ LNR TOP. MW:10.5 VIS: 65 TD:12588' ( 5) RIH W/ 7-5/8" LNR. CIRC. RIH TO 12194'. WORK 3 STDS OUT SUPV:JC OF HOLE. CIRC. WASH LNR TO BTM. CIRC. PUMP 60 BBLS (339 HOLE ANGLE:78 36 SX) CMT. BUMP PLUG W/ 2500 PSI. SET HGR W/ 3000 PSI. POOH, L/D RUNNING TOOLS. RIH TO TOP OF LNR @ 10576'. CIRC. DAILY:S246,989 CUM:$2,082,656 ETD:S2,103,156 EFC:$5,015,500 P2 DRIL: 1.8 TRIP: 14.5 CIRC: 7.2 CASG: 0.5 10/13/91 (23) CIRC. MW: 9.8 VIS: 63 TD:12588' ( 0) CBU @ TOL @ 10576' POOH. RIH. TAG CMT @ 12441' DRLG SUPV:JC CMT F/ 12441'-12484' CIRC. TEST CSG. DRLG LC, CMT TO FC. HOLE ANGLE:78 36 CIRC. CUT MUG WT F/ 10.5 PPG TO 9.0 PPG. DAILY:S80,285 CUM:$2,162,941 ETD:S2,183,411 EFC:$5,015,530 PROD DRIL: 14.0 CIRC: 9.5 EVAL: 0.5 10/14/91 (24) DRLG. MW: 9.1 VIS: 65 TD:12815' ( 227) CIRC. CUT MUD WT TO 9.0 PPG. DRLG CMT , FS, 10' NEW HOLE SUPV:JC TO 12598'. CIRC. PERFORM FIT (11.7 PPG EMW) . DRLG F/ HOLE ANGLE:51 18 12598'-12815' DAILY:S47,081 CUM:$2,210,022 ETD:S2,230,522 EFC:$5,015,500 PROD DRIL: 7.5 TRIP: 14.0 RIGS: 0.5 BOPE: 2.0 10/15/91 (25) DRLG. MW: 9.1 VIS: 64 TD:12915' ( 100) DRLG F/ 12815'-12896'. POOH. TEST BOPE. RIH. WASH 90' TO SUPV:JC BTM. DRLG F/ 12895'-12915' HOLE ANGLE:51 18 DAILY:S57,500 CUM:$2,267,522 ETD:S2,288,022 EFC:$5,015,500 PROD DRIL: 18.5 TRIP: 5.0 SURV: 0.5 10/16/91 (26) MW: 9.1 VIS: 62 TD:!3119' ( 204) DRILLING FROM 12915 TO 13119'. CIRC & SURV. POH F/BIT. SUPV:JEH HOLE ANGLE:51 18 DAILY:SO CUM:$2,267,522 ETD:S2,759,244 EFC:$4,544,278 PROD DRIL: 17.5 TRIP: 5.5 RIGS: 1.0 10/17/91 (27) DRLG MW: 9.0 VIS: 63 TD:13250' ( 131) CHG BIT & STAB BLADE. RIH & REAM TO BOTT. DRLG TO 13250. SUPV:JEH HOLE ANGLE:51 18 DAILY:S48,234 CUM:$2,315,756 ETD:S2,379,247 EFC:$4,972,509 ACTIVITY SUMMARY BP/AAI SHARED SERVICE NORTH SLOPE AK LISBURNE L 4-12 AUDI 2 PROD DRIL: 11.8 TRIP: 11.7 RIGS: 0.5 10/18/91 (28) DYNA DRILLING MW: 9.1 VIS: 68 TD:13322' ( 72) DRILLED TO 13260' POH. RIH AND DRILLING WITH DYNADRILL. SUPV:JEH HOLE ANGLE:51 18 DAILY:S117,734 CUM:$2,433,490 ETD:S2,496,981 EFC:$4,972,509 PROD DRIL: 10.0 TRIP: 13.0 RIGS: 1.0 10/19/91 (29) DRILLING MW: 9.1 VIS: 70 TD:13432' ( 110) DRILLED TO 13408. PHH & CHANGE BHA. RIH & TEST MWD. CUT SUPV:JEH DRILLING LINE. RIH. REAMED FROM 13260'-13408'. DRILLING. HOLE ANGLE:51 18 DAILY:S45,157 CUM:$2,478,647 ETD:S2,542,138 EFC:$4,972,509 PROD DRIL: 23.5 TRIP: 0.5 10/20/91 (30) DRILLING TD:13692' ( 260) DRILLED TO 13633' SUPV:JEH HOLE ANGLE:51 18 DAILY:S45,788 MW: 9.1 VIS: 71 SHORT TRIP. DRILLING @ 0600. CUM:$2,524,435 ETD:S2,587,926 EFC:$4,972,509 PROD DRIL: 9.8 TRIP: 12.2 RIGS: 0.5 PROB: 1.5 PROB CODE: EFS 10/21/91 (31) DRILLING MW: 9.2 VIS: 75 TD:13799' ( 107) DRILLED. POH. RIH. DRILLING. SUPV:JEH HOLE ANGLE:51 18 DAILY:S46,488 CUM:$2,570,923 ETD:S2,634,414 EFC:$4,972,509 PROD DRIL: 13.3 TRIP: 7.0 RIGS: 1.2 BOPE: 2.5 10/22/91 (32) CHG BHA MW: 9.2 VIS: 73 TD:14006' ( 207) DRLG TO 14006' CIRC. POH, LD COLLARS. TEST BOPE. CHG SUPV:JEH BHA & MWD. HOLE ANGLE:51 18 DAILY:S65,353 CUM:$2,636,276 ETD:S2,699,767 EFC:$4,972,509 PROD DRIL: 18.0 TRIP: 6.0 10/23/91 (33) DRILLING MW: 9.2 VIS: 69 TD:14230' ( 224) RIH W/BIT %20 REAM 90' TO BOTTOM & CALIBRATE MWD. DRILLING SUPV:JEH TO 14230' HOLE ANGLE:51 18 DAILY:S81,140 CUM:$2,717,416 ETD:S2,780,907 EFC:$4,972,509 PROD DRIL: 12.3 TRIP: 11.2 RIGS: 0.5 10/24/91 (34) DRILLING MW: 9.3 VIS: 65 TD:14380' ( 150) DRILLED TO 14283', POH F/BIT, CHG STABILIZER, MU BIT & RIH. SUPV:JEH DRILL TO 14380' HOLE ANGLE:51 18 DAILY:S46,947 CUM:$2,764,363 ETD:S2,827,854 EFC:$4,972,509 PROD DRIL: 14.2 TRIP: 9.5 RIGS: 0.3 10/25/91 (35) MW: 9.2 VIS: 63 TD:14467' ( 87) DRIL TO 14467'. POOH. DROP 2 STABILIZER & CHANGE BIT. CUT SUPV:JEH DRILLING LINE HOLE ANGLE:51 18 DAILY:S80,148 CUM:$2,844,511 ETD:S2,908,002 EFC:$4,972,509 ACTIVITY SUMMARY BP/AAI SHARED SERVICE NORTH SLOPE AK LISBURNE L 4-12 AUDI 2 PROD DRIL: 21.5 TRIP: 2.5 10/26/91 (36) DRILLING MW: 9.2 VIS: 63 TD:14655' ( 188) TIH. DRILL FROM 14467'-14655'. SUPV:JCH HOLE ANGLE:51 18 DAILY:S45,686 CUM:$2,890,197 ETD:S2,953,688 EFC:$4,972,509 PROD DRiL: 13.8 TRIP: 9.5 RIGS: 0.7 10/27/91 (37) DRILLING MW: 9.3 VIS: 67 TD:14805' ( 150) DRILLED. POOH. DRILLED FROM 14700'-14805'. SUPV:JCH HOLE ANGLE:51 18 DAILY:S48,042 CUM:$2,938,239 ETD:S3,001,730 EFC:$4,972,509 PROD DRIL: 12.5 TRIP: 10.8 RIGS: 0.7 10/28/91 (38) DRILLING MW: 9.3 VIS: 72 TD:14900' ( 95) DRILLED TO 14885'. POOH. TIH. DRILLED TO 14890' SUPV:JCH HOLE ANGLE:51 18 DAILY:S59,834 CUM:$2,998,073 ETD:S3,061,564 EFC:$4,972,509 PROD DRIL: 7.5 TRIP: 3.0 RIGS: 2.0 EVAL: 11.5 10/29/91 (39) RIH W/LOGGING TOOLS MW: 9.3 VIS: 66 TD:14969' ( 69) DRILLED TO 14969' CBU. POOH. RIH W/LOGGING TOOLS. SUPV:JC HOLE ANGLE:51 18 DAILY:S85,058 CUM:$3,083,131 ETD:S3,146,622 EFC:$4,972,509 PROD TRIP: 1.0 CIRC: 1.2 EVAL: 16.5 PROB: 5.3 PROB CODE: EFS 10/30/91 (40) CBU MW: 9.3 VIS: 66 TD:14909' ( 0) PU SIDE ENTRY SUB & RU DRESSER WIRE LINE. DP CONVEYED SUPV:JC LOGGING. POH LOGGING TO 12380' RIH, REPEAT LOG. POH TO HOLE ANGLE:51 18 SIDE ENT. SUB & POH WIRE LINE, RD DRESSER. RIH TO 10226. CBU. DAILY:S143,701 CUM:$3,226,832 ETD:S3,290,323 EFC:$4,972,509 PROD TRIP: 9.7 SURV: 6.5 RIGS: 1.2 CIRC: 3.3 BOPE: 3.3 10/31/91 (41) CBU MW: 9.3 VIS: 68 TD:14969' ( 60) CBU. POH CUT DRILLING LINE. SERVICE RIG. RUN GYRO. TEST SUPV:JEH BOPE. RIH W/ BIT RR24 CIRC FOR LINER. HOLE ANGLE:51 18 DAILY:S245,000 CUM:$3,471,832 ETD:S3,450,000 EFC:$5,057,832 RCSG: 22.7 PROB: 1.3 PROB CODE: EFC 11/01/91 (42) LAY DOWN DRILLING PIPE MW: 9.3 OBM TD:14969 CBU. POH. SERVICE RIG. REP. DRAWWORKS TRANS. POOH & LAY PB: 0 DOWN 3-1/2 PIPE & BHA. RIG UP & RUN 4-1/2 DRILLED LINER. SUPV:JEH RUN LINER ON DRLING PIPE. CIRC & BUMP PLUG. SET HANGER & TEST. POH & LAY DOWN PIPE DAILY:S43,827 CUM:$3,515,659 ETD:S3,493,827 EFC:$5,057,832 ACTIVITY SUMMARY BP/AAI SHARED SERVICE NORTH SLOPE AK LISBURNE L 4-12 AUDI 2 RCMP: 2.0 RCSG: 4.0 OTHR: 18.0 11/02/91 (43) RIH W/ 2-7/8" TBG. MW: 9.3 OBM TD:14969 L/D DP. CLEAN PITS. FILL W/ SEAWATER. RIH W/ 2-7/8" TBG. PB:14969 SUPV:JEH DAILY:S46,698 CUM:$3,562,357 ETD:S3,540,525 EFC:$5,057,832 RCMP: 20.5 PROB: 3.5 PROB CODE: CSG 11/03/91 (44) DISP W/ SEAWATER. MW: 8.5 Seawater TD:14969 RUN 2-7/8" TBG. C/O X NIPPLE. RIH W/ 2-7/8" TBG. POOH TO PB:14969 GLM #1. REPLACE. RIH W/ TBG. DISP W/ 8.5 PPG SEAWATER. SUPV:JEH DAILY:S171,104 CUM:$3,733,461 ETD:S3,711,629 EFC:$5,057,832 NDNU: 5.5 RCMP: 9.0 PROB: 3.5 PROB CODE: CSG 11/04/91 (45) RIG RELEASED @ 24:00 HRS. MW: 8.5 Seawater TD:14969 DISP W/ SEAWATER & 142 BBLS DIESEL. LAND TBG. TEST TBG, PB:14969 ANNULUS. N/D BOPE. N/U TREE. TEST TREE. TEST ANNULUS. SUPV:JEH OK. TEST TBG. FC PLUG SHEAR @ 2000 PSI SECURE WELL. RIG RELEASED @ 24:00 HRS, 11/3/91. DAILY:SO CUM:$3,733,461 ETD:S3,711,629 EFC:$5,057,832 SUB ' S URFA CE DIRECTIONAL r~ UIDANCE ] ONTINUOUS I-~ OOL SURVEY Alaska Oil & Gas Cons. Anchorage Company ARCO ALASKA, INC. . Well Name LISBURNE L4-12 (2132'FSL,2117'.FEL,SEC 24,T11N,R15E) Field/Location PRUDHOE BAY/LISBURNE POOL, NORTH SLOPE, ALASKA ii Job Reference No. Date 75130 30-0CT-1991 Loqqed By: Computed By: _ _ CHENEVEY 5;. DEES GCT DIRECTIONAL SURVEY CUSTOMER LISTING FOR ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA SURVEY DATE: 30-0CT-1991 ENGINEER: CHENEVEY METHODS OF COMPUTATION TOOL LOCATION: TANGENTIAL- Averaged deviation and azimuth INTERPOLATION: LINEAR VERTICAL SECTION: HORIZ. DIST. PROJECTED ONTO A TARGET AZIMUTH OF NORTH 22 DEG 50 MIN EAST COMPUTATION DATE: 5-NOV-91 PAGE 1 ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MiN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 0 O0 100 O0 200 O0 300 O0 400 O0 500 O0 600 O0 700 O0 800.00 900.00 0 O0 100 O0 200 O0 300 O0 400 O0 50O O0 599 99 699 98 799 93 899 80 -56.00 0 0 N 0 0 E 44,00 0 B N 67 34 W 144,00 0 18 S 20 19 W 244.00 0 11 N 68 49 W 344.00 0 14 N 73 48 E 444.00 0 16 S 7 8 E 543.99 0 3i N 45 4~ E 643.98 1 20 N 4 2 E 743,93 2 24 N 12 48 E 843.80 3 35 N 16 19 E 0 O0 0 03 -0 30 -0 29 -0 62 -0 58 -0 56 O 78 4 O0 9 O3 0 O0 0 O0 051 1 77 t 29 0 17 0 77 1 17 0 85 1 2O 0 O0 N 0 06 N 0 22 S 0 24 S 0 64 S 0545 0 73 S 0 63 N 3 90 N 8 82 N 0 O0 E 0 05 W 0 26 w 0 '16 w 0 09 w 0 22 w 0 23 E 051 E '~ 04 E 2 32 E 0 O0 N 0 0 E 08 N 43 35 'W 34 S 50 31 W 29 S 33 23 W 65 S 8 8 W 58 S 22 4t W 76 S 17 22 E 8'~ N 38 58 E 03 N ~4 55 E i2 N 14 44 E 1000.00 1100.00 1099 1200.00 1198 1300.00 1297 1400.00 1397 1500.00 1495 1600.00 1593 1700.00 1690 1800.00 1787 1900.00 1882 999 56 943.56 4 28 19 1043.19 5 22 67 1142.67 6 21 99 1241.99 7 4 10 1341.10 8 21 84 1439.84 10 4 81 1537.81 12 45 95 1634,95 14 36 34 1731.34 16 23 84 1826.84 17 57 N 18 41 E N 1947 E N 21 31 E N 21 36 E N 23 41 E N 26 43 E N 31 6 E N 29 39 E N 26 5 E N 26 55 E 15.86 24.38 34.54 46.21 59.50 75,31 95.16 118.65 145.16 174.76 1 O8 0 78 1 13 0 87 1 78 3 14 2 02 1 .92 1 .56 0.73 15 36 N 23 41 N 32 92 N 43 77 N 56 02 N 70 35 N 87 76 N 108.11 N 131.67 N 158.25 N 4.39 E 7.2t E 24 10.83 E 34 15.12 E 46 20.27 E 59 26.99 E 75 36.79 E 95 48.99 E 118 61.35 E 145 74.48 E 174 ~5 98 N 15 56 E 50 N 17 7 E 65 N 18 12 E 31 N 19 3 E 58 N 19 53 E 35 N 20 59 E 16 N 22 45 E 69 N 24 23 E 26 N 24 59 E 91 N 25 12 E 2000.00 1977 71 1921 71 19 21 2100.00 2071 37 2015 2200.00 2163 94 2107 2300.00 2255 79 2199 2400.00 2346 51 2290 2500.00 2435 80 2379 2600.00 2524 43 2468 2700.00 2612.86 2556 2800.00 2699.70 2643 2900.00 2783.96 2727.96 33 47 37 21 40 94 22 45 79 23 59 51 25 42 80 27 44 43 27 26 86 28 23 70 31 14 N 22 22 E N 23 13 E N 26 48 E N 24 19 E N 25 1 E N 28 38 E N 31 3 E N 31 8 E N 28 35 E N 26 16 E 206 32 241 34 279 14 318 61 360 65 405 55 451 52 497 66 546 84 600.51 2 47 1 45 0 82 1 62 2 23 1 60 1 42 2 09 3 46 2 38 186 81 N 219 17 N 101.37 E 241 253 53 N 117.t9 E 279 289 11 N 134.41 E 318 327 46 N 151.64 E 360 367 61 N 172.00 E 405 407 81 N 194.99 E 452 447 59 N 219.40 E 498 490.54 N 244,15 E 547 87.99 E 206 50 N 25 13 E 48 N 24 49 E 30 N 24 48 E 83 N 24 56 E 87 N 24 51 E 86 N 25 4 E O2 N 25 33 E 47 N 26 7 E 94 N 26 28 E 538.35 N 268.90 E 601.77 N 26 32 E 3000.00 2866.20 2810.20 35 31 3100.00 2946.68 2890.68 37 20 3200.00 3025.11 2969.11 39 18 3300.00 3101.58 3045.58 40 44 3400.00 3176.68 3120.68 42 3 3500.00 3250.21 3194.21 43 21 3600.00 3321.92 3265.92 45 12 3700.00 3390.92 3334.92 47 39 3800.00 3456.91 3400.91 49 26 3900.00 3521,92 3465.92 49 16 N 24 21 E 657.34 N 22 39 E 716.68 N 21 51 E 778.70 N 21 26 E 843.12 N 20 40 E 909.11 N 19 59 E 976.81 N 19 33 E 1046.40 N 20 4 E 1118.66 N 20 26 E 1193.72 N 20 27 E 1269.63 2.00 231 2 02 1 01 1 17 1 55 2 23 2 92 071 0 35 589.77 N 293.22 E 658.64 N 26 26 E 644.21 N 316.82 E 717.90 N 26 11 E 701.65 N 340.21 E 779.78 N 25 52 E 761.51 N 364.09 E 844.07 N 25 33 E 823.16 N 387.73 E 909.90 N 25 13 E 886.70 N 411.25 E 977.43 N 24 53 E 952.32 N 434.75 E 1046.86 N 24 32 E 1020.44 N 459.15 E 1118.99 N 24 14 E 1090.89 N 485.27 E 1193.96 N 23 59 E 1162.09 N 511.80 E 1269.80 N 23 46 E COMPUTATION DATE: 5-NOV-91 PAGE 2 ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUT~ DEPTH DEPTH DEPTH DEG MIN DEG VERTICA~ DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WES7 DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 4000,00 3587 62 3531 62 48 31 4100.00 3654 12 3598 4200,00 3720 39 3664 4300,00 3785 9,4 3729 4400,00. 3851 62 3795 4500,00 3917 5,4 3861 4600,00 3983 79 3927 4700,00 4050 22 3994 4800,00 4116,98 4060 4900,00 4183,98 4127 12 48 20 39 48 53 94 49 4 62 48 52 54 48 37 79 48 26 22 48 14 98 47 58 98 48 8 N 20 42 E 1344 96 N 21 13 E 14'19 N 22 14 E 1494 N 22 40 E 1570 N 22 41E 1645 N 22 46 E 1720 N 22 49 E 1795 N 22 54 E 1870 N 23 14 E 1944 N 23 10 E 2018 6O 48 O0 41 6O 51 25 70 94 0 65 1 O0 I O0 0 13 0 19 0,4! 0 O0 0 49 0 95 1 33 1232 68 N 538 26 E 1345,08 N 23 35 E 1302 1372 1441 1511 1580 1649 1718 1787 1855 47 N 564 O0 N 592 76 N 621 35 N 650 72 N 679 78 N 708 66 N 737 2~ N 766 47 N 795 88 E 1419,68 N 23 27 E 69 E 1494,55 N 23 22 E 61 E 1570.05 N 23 19 E 65 E 1645.46 N 23 18 E 68 E 1720.65 N 23 16 E 70 E 1795.56 N 23 15 E 72 E 1870.30 N 23 1,4 E 67 E 1944.74 N 23 13 E 95 E 2018,98 N 23 13 E 5000,00 4250,28 4194 28 48 54 5100,00 4315,76 4259 76 49 24 5200,00 4380,59 4324 59 49 48 5300,00 4444,79 4388 79 50 29 5400,00 4508,17 4452 17 50 55 5500,00 4570,63 4514 63 51 54 5600,00 4632,25 4576,25 51 58 5700,00 4693,86 4637,86 51 34 5800,00 4755,86 4699.86 51 54 5900,00 4817,38 4761,38 52 16 N 23 7 E 2093.79 N 23 50 E 2169.37 N 24 15 E 2245.49 N 24 0 E 2322.14 N 23 49 E 2399.47 N 23 36 E 2477.56 N 23 21 E 2556.31 N 23 58 E 2635.07 N 23 38 E 2713.52 N 23 7 E 2792,35 0,56 1 ,9O 0,82 1.15 0,85 1 ,94 0,50 0,10 0,75 0.84 1924 29 N 825 38 E 2093,84 N 23 13 E 1993 2063 2133 2203 2275 2347 2419 2491 2563 70 N 855 16 N 886 07 N 917 81N 949 30 N 980 56 N 1012 69 N 1043 48 N 1075 91N 1106 29 E 2169,42 N 23 13 E 49 E 2245,55 N 23 15 E 96 E 2322,21 N 23 17 E 24 E 2399,55 N 23 18 E 70 E 2477.65 N 23 19 E 0t E 2556.40 N 23 19 E 64 E 2635,17 N 23 20 E 31 E 2713,63 N 23 21 E 45 E 2792.46 N 23 21 E 6000,00 4878,21 4822.21 52 42 6100,00 4938.66 4882,66 52 44 6200.00 4999,25 4943.25 52 39 6300,00 5060,48 5004,48 51 46 6400,00 5122,87 5066,87 51 22 6500,00 5185,32 5129,32 51 2 6600,00 5248,54 5192,54 50 35 6700,00 5311,54 5255,54 51 42 6800.00 5373,53 5317,53 50 36 6900.00 5437,56 5381,56 50 46 N 23 30 E 2871.72 N 23 28 E 2951,37 N 22 38 E 3030.93 N 21 42 E 3109.98 N 21 50 E 3188,12 N 22 21 E 3266,21 N 22 4 E 3343.68 N 22 38 E 3421.33 N 23 46 E 3499,80 N 23 57 E 3576,59 0,38 1 .48 1 .00 2 27 i 38 1 06 0 76 1 69 4 40 1 78 2636,79 N 1137 87 E 2871,83 N 23 21 E 2709.77 N 1169 2783,03 N 1200 2856.21 N 1230 2928.90 N 1259 3001,26 N 1288 3072.95 N 1318 3144,81 N 1347 3216,94 N 1378 3287,12 N 1409 80 E 2951,49 N 23 21 E 82 E 3031,04 N 23 20 E 73 E 3110,09 N 23 19 E 46 E 3188.21 N 23 16 E 84 E 3266,29 N 23 t4 E 21 E 3343,75 N 23 13 E 66 E 3421,40 N 23 12 E 53 E 3499,86 N 23 12 E 75 E 3576,67 N 23 13 E 7000.00 5499.32 5443.32 53 2 7100.00 5557.84 5501.84 55 19 7200.00 5614.11 5558.11 56 2 7300.00 5669.68 5613.68 56 43 7400.00 5724.68 5668.68 56 30 7500.00 5780.71 5724.71 55 25 7600.00 5838.10 5782.10 54 51 7700.00 5896.59 5840.59 53 50 7800.00 5956.25 5900.25 53 9 7900,00 6016,69 5960,69 52 31 N 23 34 E 3655.22 N 23 28 E 3736 30 N 25 25 E 3818 93 N 24 41 E 3901 99 N 23 48 E 3985 48 N 22 35 E 4068 31 N 22 12 E 4150 19 N 22 18 E 4231.30 N 21 55 E 4311,55 N 21 11 E 4391.19 2,23 1 48 1 48 1 02 2 08 1 21 1 03 1 36 1 57 1 10 3359.04 N 1441 57 E 3655,31 N 23 14 E 3433.46 N 1473 3508.74 N 1507 3583.98 N 1543 3660.15 N 1577 3736,35 N 1609 3812,18 N 1640 3887,22 N 1671 3961,60 N 1701 4035,77 N 1730 74 E 3736,39 N 23 14 E 89 E 3819,03 N 23 15 E 25 E 3902,12 N 23 18 E 50 E 3985,62 N 23 19 E 96 E 4068,45 N 23 19 E 87 E 4150,32 N 23 17 E 66 E 4231,42 N 23 16 E 80 E 4311,66 N 23 15 E 86 E 4391.28 N 23 13 E COMPUTATION DATE: 5-NOV-91 PAGE 3 ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WES7 DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG 8000.00 6077.52 6021 52 52 44 8100.00 6137 47 6081 8200.00 6197 8300.00 6259 8400.00 6323 8500.00 6387 8600.00 6451 8700.0O 6516 8800.00 6581 8900.00 6645 18 6141 38 6203 47 6267 77 6331 52 6395 60 6460 82 6525 73 6589 47 53 35 18 52 17 38 50 24 47 49 55 77 50 30 52 49 48 60 48 51 82 49 46 73 50 33 N 21 32 E 4470 53 N 22 36 E 4550 N 22 21 E 463O N 21 33 E 4709 N 21 1E 4785 N 21 23 E 4862 N 22 5 E 4939 N 22 24 E 5015 N 21 55 E 5091 N 21 33 E 5167 0.57 56 0.58 4183 77 2.75 4257 06 1.35 4330 79 0.63 4402 34 1.95 4473 37 0.84 4545 29 0.34 46t5 08 0.57 4685 97 0.32 4757 4109 69 N 1759.76 E 4470 61 N 23 11 E 91N 1789.72 E 4550 95 N 1820.59 E 4630 49 N 1850.05 E 4709 04 N 1877.86 E 4785 52 N 1905.33 E 4862 09 N 1933.86 E 4939 37 N t962.59 E 50~5 56 N 199!.2! E 5091 O~ N 2019,65 E 5167 63 N 23 10 E 83 N 23 9 E 12 N 23 8 E 84 N 23 6 E 38 N 23 4 E 40 N 23 3 E 32 N 23 2 E !~ N 23 ' E 99 N 23 £' E 9000.00 6709 25 6653 25 50 33 9100.00 6772 9200.00 6837 9300.00 6903 9400.00 6968 9500.00 7031 9600.00 7094 9700,00 7155 9800.00 7215 9900.00 7274 93 6716 73 6781 51 6847 13 6912 70 6975 24 7038 46 7099 37 7159 52 7218 93 50 19 73 48 45 51 49 14 13 50 8 70 50 53 24 51 38 46 52 42 37 53 35 52 53 35 N 21 58 E 5245 21 N 21 53 E 5322 N 22 15 E 5398 N 22 15 E 5473 N 22 19 E 5550 N 22 5 E 5627 N 21 56 E 5705 N 21 59 E 5784 N 21 54 E 5864 N 21 59 E 5945 30 45 76 08 26 28 34 40 02 0.45 1.16 4900 1.65 4970 1.67 5040 0.47 5111 1.00 5182 1.37 5254 1.30 5328 0.71 5402 0.69 5477 4828 70 N 2048 41 E 5245 22 N 22 59 E 18 N 2O77 76 N 2105 42 N 2134 05 N 2163 52 N 2192 87 N 2221 20 N 2251 45 N 2281 25 N 2311 32 E 5322 31 N 22 58 E 95 E 5398 47 N 22 58 E 55 E 5473 77 N 22 57 E 46 E 5550 08 N 22 57 E 62 E 5627 27 N 22 56 E 87 E 5705.29 N 22 55 E 44 E 5784.35 N 22 54 E 38 E 5864.40 N 22 54 E 51 E 5945.02 N 22 53 E 10000.00 7333.94 7277 94 53 32 10100.00 7393.48 7337 10200.00 7453.20 7397 10300.00 7513.13 7457 10400.00 7573.23 7517 10500.00 7633.69 7577 10600,00 7694.43 7638 10700.00 7755.53 7699 10800.00 7816.78 7760 10900.00 7878.34 7822 48 53 27 20 53 12 13 53 12 23 52 55 69 52 41 43 52 20 53 52 8 78 52 8 34 51 54 N 21 58 E 6025.44 N 21 51 E 6105.78 N 21 54 E 6185.97 N 21 56 E 6266.01 N 21 49 E 6345.93 N 21 50 E 6425.57 N 21 39 E 6504.99 N 21 43 E 6584.14 N 21 58 E 6663.18 N 22 10 E 6741,97 0.14' 5551 83 N 2341 61 E 6025.44 N 22 52 E 0.23 0.18 0.88 0.20 0.45 0.78 0.48 0.39 0.42 5626 35 N 2371 5700 79 N 2401 5775 05 N 2431 5849 21N 2461 5923 16 N 249O 5996.94 N 2520 6070.48 N 2549 6143.86 N 2578 6216.89 N 2608 64 E 6105.78 N 22 51 E 52 E 6185.97 N 22 51 E 40 E 6266.01 N 22 50 E 21 E 6345.93 N 22 49 E 83 E 6425.57 N 22 48 E 27 E 6505.00 N 22 48 E 56 E 6584.t4 N 22 47 E 94 E 6663.18 N 22 46 E 56 E 6741.98 N 22 46 E 11000.00 7940,04 7884.04 51 40 11100.00 8002.15 7946.15 51 33 11200.00 8064.51 8008.51 51 20 11300.00 8127.06 8071.06 51 14 11400,00 8189.93 8133.93 50 52 11500.00 8253.45 8197.45 50 9 11600.00 8318.06 8262.06 49 22 11700.00 8382.50 8326.50 51 20 11800.00 8443.35 8387.35 54 10 11900.00 8500.05 8444.05 57 4 N 22 36 E 6820 67 N 22 40 E 6899 N 22 31 E 6977 N 22 29 E 7055 N 22 43 E 7133 N 22 49 E 7210 N 22 54 E 7286 N 22 55 E 7363 N 22 1 E 7442 N 22 28 E 7524 04 21 23 O0 23 55 02 35 70 0.32 0.11 0.23 0.21 0.48 0.80 0.61 2.28 1.12 0.86 6289.60 N 2638 66 E 6820.68 N 22 46 E 6361.94 N 2668 6434.10 N 2698 6506.20 N 2728 6578.00 N 2758 6649.19 N 2788 6719.52 N 2818 6789.92 N 2848 6863,16 N 2878 6939.40 N 2909 82 E 6899.05 N 22 45 E 88 E 6977.22 N 22 45 E 71 E 7055.24 N 22 45 E 57 E 7133.00 N 22 45 E 51 E 7210.24 N 22 45 E 17 E 7286.56 N 22 45 E 01 E 7363.02 N 22 45 E 50 E 7442.36 N 22 45 E 64 E 7524.71 N 22 45 E COMPUTATION DATE: 5-NOV-91 PAGE 4 ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLV BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUT~ FEET DEG/IO0 FEET FEET FEET DEG 12000 O0 8552 44 8496.44 59 55 12100 12200 12300 12400 12500 12600 12700 12800 12900 O0 8600 O0 8646 O0 8686 O0 8721 O0 8747 O0 8770 O0 8792 O0 8815 O0 8838 73 8544 73 62 1 01 8590 98 8630 8a 8665 78 8691 38 8714 99 8736 59 8759 19 8782 01 64 3 98 67 18 8a 71 53 78 76 56 38 76 56 99 76 56 59 76 56 19 76 56 N 22 6 E 7609 85 N 24 14 E 7697 N 25 52 E 7786 N 25 13 E 7877 N 24 56 E 7971 N 23 28 E 8067 N 23 28 E 8165 N 23 28 E 8262 N 23 25 E 8359 N 23 28 E 8457 40 48 58 19 9[' 30 0 74 0 9O 0 56 1 46 3 97 0 O0 0 O0 0 O0 0 O0 0 oo 7018.24 N 2941.82 E 7609 86 N 22 45 E 7098 84 N 2976 01 E 7697 7179 7261 7346 7434 7524 7613 7702 7792 66 N 3013 96 N 3052 69 N 3092 84 N 3132 20 N 3170 55 N 3209 91N 3248 26 N 3287 62 E 7786, 90 E 7877 89 E 7971 18 E 8067 97 E 8165 77 E 8262 56 E 8359 35 E 8457 41 N 22 45 E 49 N 22 46 E 58 N 22 48 E 19 N 22 5O E 68 N 22 51 E 08 N 22 5~ E 49 N 22 52 E 90 N 22 52 E N 22 52 E 13000.00 8860.79 8804.79 76 56 13100.00 8883.39 8827.39 76 56 13200.00 8905.99 8849.99 76 56 13300.00 8928.59 8872.59 76 56 13400.00 8951.19 8895.19 76 56 13500.00 8973.79 8917.79 76 56 13600.00 8996.39 8940.39 76 56 13700.00 9018.99 8962.99 76 56 13800.00 9041.59 8985.59 76 56 13900.00 9064.19 9008.19 76 56 N 23 28 E 8554 71 N 23 28 E 8652 N 23 28 E 8749 N 23 28 E 8846 N 23 28 E 8944 N 23 28 E 9041 N 23 28 E 9139 N 23 28 E 9236 N 23 28 E 9333 N 23 28 E 9431 12 52 93 34 74 15 56 97 37 0.00 7881 61 N 3326 15 E 8554.71 N 22 53 E 0.00 7970 97 N 3364 94 E 8652.12 N 22 53 E 0.00 8060 32 N 3403 74 E 8749.53 N 22 54 E 0.00 8149 68 N 3442 53 E 8846.94 N 22 54 E 0.00 8239 03 N 3481 33 E 8944.34 N 22 54 E 0.00 8328 39 N 3520 12 E 9041.75 N 22 55 E 0.00 8417 74 N 3558.92 E 9139.16 N 22 55 E 0.00 8507 09 N 3597.71 E 9236.57 N 22 55 E 0.00 8596.45 N 3636.51 E 9333.98 N 22 56 E 0.00 8685.80 N 3675.30 E 9431.39 N 22 56 E 14000.00 9086.79 9030.79 76 56 14100.00 9109.39 9053.39 76 56 N 23 28 E 9626 14200.00 9131,99 9075.99 76 56 N 23 28 E 9723 14300.00 9154.59 9098.59 76 56 N 23 28 E 982! 14400,00 9177.19 9121.19 76 56 N 23 28 E 9918 14500,00 9199.79 9143.79 76 56 N 23 28 E 10015 14600.00 9222.40 9166.40 76 56 N 23 28 E 10113 14700.00 9245.00 9189.00 76 56 N 23 28 E 10210 14800.00 9267.60 9211.60 76 56 N 23 28 E 10308 14900.00 9290.20 9234.20 76 56 N 23 28 E 10405 N 23 28 E 9528 78 18 59 O0 41 8t 22 63 O3 44 0.00 0 O0 0 O0 0 O0 0 O0 0 O0 0 O0 0 O0 0 O0 0 O0 8775,16 N 3714 10 E 9528.79 N 22 56 E 8864 51N 3752 8953 9043 9132 9221 9311 9400 9489 9579 87 N 3791 22 N 3830 58 N 3869 93 N 3908 28 N 3946 64 N 3985 99 N 4024 89 E 9626.20 N 22 57 E 69 E 9723.61 N 22 57 E 48 E 9821.02 N 22 57 E 27 E 9918.43 N 22 58 E 07 E10015.84 N 22 58 E 86 E10113.25 N 22 58 E 66 E10210.65 N 22 59 E 45 E10308.06 N 22 59 E 35 N 4063.25 E10405.47 N 22 59 E 14969.00 9305.79 9249.79 76 56 N 23 28 E 10472.65 0.00 9641.00 N 4090.02 E10472.68 N 22 59 E COMPUTATION DATE: 5-NOV-91 PAGE 5 ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN 0 O0 1000 2000 3000 4000 5000 6000 7OO0 8000 9000 0 O0 -56.0O O0 999 O0 1977 O0 2866 O0 3587 O0 4250 oo 4878 oo 5499 O0 6077 O0 6709 56 943 56 71 1921 2O 2810 62 3531 28 4194 2: 4822 32 5442 52 6021 25 6653 0 0 4 28 71 19 21 20 35 31 62 48 31 28 48 54 21 52 42 32 53 2 52 52 4`4 25 50 33 VERTICAL DOGLEG RECTANGULAR COORDINATES HORiZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST, AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 10000 O0 7333.94 7277 94 53 32 11000 O0 7940.04 7884 04 51 40 12000 O0 8552.44 8496 44 59 55 13000 O0 8860.79 8804 79 76 56 14000 O0 9086.79 9030 79 76 56 14969 O0 9305.79 9249 79 76 56 N 0 0 E 0.00 N 18 41 E 15 86 N 22 22 E 2O6 32 N 24 21 E 657 34 N 20 42 E 1344 96 N 23 7 E 2093 79 N 23 30 E 287~ 72 N 23 34 E 3655 22 N 21 32 E 447C,53 N 21 58 E 5245.2! N 21 58 E 6025.44 N 22 36 E 6820.67 N 22 6 E 7609.85 N 23 28 E 8554.71 N 23 28 E 9528.78 N 23 28 E 10472.65 0 O0 1 08 2 47 2 O0 0 65 0 56 0 38 2 2,3 0 5'7,' 0 ,45 0.00 N 15.36 N 4 186.81N 87 589 77 N 293 1232 68 N 538 1924 29 N 825 2636 79 N 1t37 3359 04 N !44~ 4109 69 N ~759 4828 70 N 2048 0 O0 E 39 E 15 99 E 206 22 E 658 26 E 1345 38 E 2093 87 E 287i 57 E 3655 76 E 4470 4: E 5245 0 O0 N 0 0 E 98 N 15 56 E 50 N 25 13 E 64 N 26 26 E 08 N 23 35 E 84 N 23 13 E 83 N 23 2~ E 31 N 23 14 E 61 N 23 ~! E 22 N 22 59 E 0.14 0.32 0.74 0.00 0.00 0.00 5551 83 N 2341 61 E 6025 44 N 22 52 E 6289 60 N 2638 66 E 6820 68 N 22 46 E 7018 24 N 2941 82 E 7609 86 N 22 45 E 7881 61 N 3326 15 E 8554 71 N 22 53 E 8775 16 N 3714 10 E 9528 79 N 22 56 E 9641 O0 N 4090 02 E10472 68 N 22 59 E COMPUTATION DATE: 5-NOV-91 PAGE 6 ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUT~ DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTIOK SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 0 O0 56 O0 156 O0 256 O0 356 O0 456 O0 556 O0 656 01 756 O4 856 13 0 O0 56 O0 156 O0 256 O0 356 O0 456 O0 556 O0 656 O0 756 O0 856 O0 -56.00 0.00 100.00 200 O0 300 O0 400 O0 500 O0 600 O0 700 O0 800 O0 0 0 N 0 0 E 0 0 N 0 0 E 0 14 S 30 54 W 0 12 N 65 3 E 0 25 S 17 28 E 0 19 N 7t 31 W' 0 2i S 55 IIE 0 49 I~ 6 36 E ! 57 N 10 8 E 2 55 N 14 29 E 0 O0 0 O0 -0 09 -0 40 -0 56 -0 44 -0 74 00C '~ 37 6.57 0 O0 0 O0 0 25 1 02 1 27 ! 93 0 37 0 92 0 83 0.88 0.00 N 0 O0 N 0 03 S 0 36 S 0 50 S 0425 0785 0 18 S 2 27 N 6 43 N 0 O0 E 0 O0 E 0 18 W 0 18 w 0 25 w 0 O 06 ~ 0705 t 66 E 0 O0 N 0 0 E 0 O0 N 0 O'E 0 18 S 81 27 W 0 40 S 26 12 W 0 56 S 26 54 0 44 S 18 21 078 S O 48 S 6"7, 34 E 2 38 N 17 8 E 6.6,4 N 14 3O E 956.33 1056.63 1056 1157,08 1156 1257.70 1256 1358.49 1356 1459.60 1456 1561.29 1556 1663.94 1656 1767.38 1756 1871.81 1856 956 O0 900.00 3 53 O0 1000.00 4 55 O0 1100.00 5 53 O0 1200.00 6 O0 1300.00 7 45 O0 1400.00 9 O0 1500.00 11 54 O0 1600.00 13 58 O0 1700.00 15 43 O0 1800.00 17 39 N 17 33 E N 19 37 E N 21 10 E N 21 45 E N 22 53 E N 25 13 E N 30 4 E N 31 1E N 27 2 E N 26 33 E 12.71 20.49 29.99 4t.13 53.70 68.58 86.96 109.84 136.15 166.15 0.28 0.80 0.44 0.52 1 .04 2.11 3.29 1 ,32 2.49 1 .59 12 36 N 19 75 N 28 68 N 39 O6 N 50 70 N 64 29 N 80 64 N 100 45 N 123 59 N 150.55 N 3.41 E 12 82 N 15 25 E 5.92 E 20 61 N 16 41 E 9.17 E 30 11 N 17 44 E 13.24 E 41 24 N 18 44 E 17.97 E 53 79 N 19 31 E 24.03 E 68 64 N 20 30 E 32.57 E 86.97 N 22 0 E 44.49 E 109.86 N 23 53 E 57.32 E 136.23 N 24 53 E 70.60 E 166.28 N 25 8 E 1977.03 1956.00 1900 O0 18 47 2083.47 2056.00 2000 O0 21 25 2191.40 2156.00 2100 O0 22 40 2300.23 2256.00 2200 O0 23 59 2410.52 2356.00 2300 O0 25 52 2522.83 2456.00 2400 O0 27 47 2635.61 2556.00 2500 O0 27 39 2749.31 2656.00 2600 O0 29 40 2866.52 2756.00 2700.00 33 2987.47 2856.00 2800.00 35 19 N 23 50 E N 22 57 E N 26 32 E N 24 18 E N 25 22 E N 29 10 E N 31 45 E N 30 2 E N 27 1 E N 24 36 E 198 81 235 26 275 83 318 71 365 20 416 12 467 80 521 33 582 14 650 06 3.63 1 .92 1 .48 1 .61 2.38 1 .08 1 .01 3.43 2.68 2.02 179 90 N 213 59 N 98 250 56 N 115 289 20 N 134 331 59 N 153 376 92 N 177 421 86 N 203 468 16 N 231 521.89 N 260 99 E 235 71 E 275 44 E 318 56 E 365 13 E 416 58 E 468 56 E 522 63 E 583 583.13 N 290.22 E 651 85 06 E 199 O0 N 25 18 E 41 N 24 52 E 98 N 24 47 E 92 N 24 56 E 43 N 24 5! E 46 N 25 10 E 41 N 25 46 E 3O N 26 19 E 35 N 26 32 E 36 N 26 28 E 3111.76 2956.00 2900.00 37 35 3240.12 3056.00 3000.00 40 2 N 21 51 E 804 3372.24 3156,00 3100.00 41 40 N 20 48 E 890 3507.95 3256.00 3200.00 43 28 N 19 56 E 982 3648.81 3356.00 3300.00 46 18 N 19 37 E 1081 3798.60 3456.00 3400.00 49 25 N 20 26 E 1192 3952.08 3556.00 3500.00 48 56 N 20 32 E 1308 4102.83 3656.00 3600.00 48 20 N 21 15 E t421 4254.28 3756.00 3700.00 49 5 N 22 34 E 1535 4406.67 3856.00 3800.00 48 52 N 22 42 E 1650 N 22 3O E 723 85 29 6O 26 29 66 98 71 45 43 2 20 1 65 1 67 1 44 2 49 0 72 1 04 1 01 0 54 0 08 650.84 N 319.57 E 725 06 N 26 9 E 725.42 N 349.74 E 805 805.83 N 381 17 E 891 891.83 N 413 12 E 982 985.24 N 446 46 E 1081 1089,90 N 484 89 E 1192 1198.98 N 525 59 E 1309 1304.43 N 565 64 E 1421 1409.87 N 608 32 E 1535 1515,99 N 652 58 E 1650 33 N 25 44 E 44 N 25 19 E 87 N 24 51 E 68 N 24 23 E 89 N 23 59 E 12 N 23 40 E 79 N 23 27 E 51 N 23 2O E 48 N 23 17 E COMPUTATION DATE: 5-NOV-91 PAGE 7 ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 4558.09 3956 O0 3900 O0 48 30 4708,67 4056 4858,20 4156 5008.7O 4256 5161.98 4356 5317,63 4456 5476.37 4556 5638,65 4656 5800,23 4756 5963,39 4856 O0 4000 O0 4100 O0 4200 O0 4300 OC 4400 O0 4500 O0 4600 O0 4700 O0 4800 O0 48 13 O0 47 54 O0 48 56 O0 49 38 O0 50 32 O0 51 4O O0 52 10 O0 51 54 O0 52 35 N 22 48 E 1764.14 N 22 53 E 1876,72 N 23 12 E 1987.89 N 23 6 E 2100.35 N 24 19 E 2216.51 N 23 57 E 2335.7Z N 23 40 E 2459.00 N 23 37 E 2586.8~ N 23 38 E 2713.7C N 23 23 E 2842.62 0.02 0.64 0.31 0 75 0 64 0 28 0 56 0 0 61 1620 85 N 696 54 E t764.18 N 23 15 E 1724 1826 1930 2036 2145 2258 2375 2491 2610 62 N 740 92 N 783 32 N 827 73 N 874 5O N 923 29 r< 973 53 K 1024 65 N 1075 09 N t126 24 E 1876.77 N 23 14 E 72 E 1987.93 N 23 13 E 96 E 2100.40 N 23 13 E 57 E 2216.56 N 23 14 E 49 E 2335.81 N 23 17 E 25 E 2459.08 N 23 19 E 15 E 2586.90 N 23 19 E 38 E 2713,81 N 23 21 E 29 E 2842.73 N 23 20 E 6128,62 4956,00 4900 6292,74 5056,00 5000 6453,22 5156.00 5100 6611,74 5256,00 5200 6772,03 5356,00 5300 6929.30 5456,00 5400 7096.78 5556.00 5500 .7275,15 5656,00 5600 7456.27 5756.00 5700 7630.92 5856.00 5800 O0 52 42 N 23 1 E 2974.14 O0 51 52 N 21 48 E 3104.27 O0 51 26 N 22 8 E 3229,76 O0 50 33 N 22 3 E 3352 75 O0 51 40 N 23 28 E 3478 01 O0 51 16 N 24 2 E 3599 36 O0 55 15 N 23 26 E 3733 66 O0 56 27 N 24 49 E 3881 26 O0 55 48 N 22 52 E 4032 23 O0 54 22 N 22 19 E 4175 41 0 90 1 96 1 39 061 2 87 2 30 1 75 1 16 1 74 2 10 2730.69 N 1178.78 E 2974,26 N 23 21 E 2850.91 N 1228,61 E 3104,38 N 23 19 E 2967,52 N 1275,03 E 3229,85 N 23 t5 E 3081.35 N 1321,62 E 3352,82 N 23 13 E 3196,97 N 1369,81 E 3478,07 N 23 12 E 3307,93 N i419,01 E 3599.44 N 23 13 E 3431,04 N 1472.69 E 3733,75 N 23 14 E 3565,14 N 1534,57 E 3881,38 N 23 17 E 3703,06 N 1596,05 E 4032,37 N 23 19 E 3835,51 N 1650,.43 E 4175,53 N 23 17 E 7799.59 5956.00 5900 O0 53 10 7964.51 6056.00 6000 O0 52 36 8131.22 6156.00 6100 O0 53 40 8294.70 6256 O0 6200 O0 50 29 8450.49 6356 O0 6300 O0 49 50 8606.94 6456 O0 6400 O0 49 45 8760.12 6556 O0 6500.00 49 29 8916.16 6656 O0 6600.00 50 36 9073.45 6756 9227.68 6856 N 21 55 E 4311.22 N 21 25 E 4442,31 N 22 42 E 4575,69 N 21 37 E 4704.97 N 20 54 E 4824.38 N 22 6 E 4944.66 N 22 7 E 5060.70 N 21 34 E 5180.45 O0 6700.00 50 26 N 21 56 E 5301.84 O0 6800.00 48 41 N 22 20 E 5419.24 1,55 3961 29 N 1701.67 E 4311,33 N 23 15 E 0,55 4083 43 N 1749.42 E 4442.40 N 23 11 E 0.95 4207 10 N 1799,40 E 4575.76 N 23 9 E 2.01 4326 69 N 1848,55 E 4705.04 N 23 8 E 0.58 4438 08 N 1891,68 E 4824.42 N 23 5 E 0.36 4550 O0 N 1935,85 E 4944.70 N 23 3 E 1,40 4657 39 N 1979,81 E 5060.72 N 23 2 E 0.76 4768,62 N 2024,24 E 5180,47 N 23 0 E 0,80 4881,19 N 2069,69 E 5301,86 N 22 59 E 0,87 4989,99 N 2113,83 E 5419,25 N 22 57 E 9381.09 6956.00 6900.00 50 2 9538.64 7056.00 7000.00 51 11 N 21 59 E 5657 9700.89 7156.00 7100.00 52 42 N 22 0 E 5785 9868.72 7256.00 7200.00 53 50 N 21 59 E 5919 10037.07 7356.00 7300.00 53 24 N 21 59 E 6055 10204.67 7456.00 7400.00 53 12 N 21 54 E 6189 10371.38 7556.00 7500.00 53 2 N 21 51 E 6323 10536.80 7656.00 7600.00 52 39 N 21 47 E 6454 10700.76 7756.00 7700.00 52 8 N 21 44 E 6584 10863.79 7856.00 7800.00 51 55 N 22 6 E 6713 N 22 20 E 5535 58 30 05 81 23 72 07 83 74 48 0,86 1,05 1 ,36 081 0 05 0 30 0 24 0 O0 0 44 0 86 5097.64 N 2157.95 E 5535.59 N 22 57 E 5210.36 N 2203.91 E 5657.31 N 22 56 E 5328.86 N 2251.71 E 5785.06 N 22 54 E 5453.87 N 2302.07 E 5919.81 N 22 53 E 5579.45 N 2352.76 E 6055.23 N 22 52 E 5704.26 N 2402.92 E 6189.72 N 22 51 E 5827.99 N 2452.71 E 6323.07 N 22 49 E 5950.32 N 2501.70 E 6454.83 N 22 48 E 6071.03 N 2549.79 E 6584.74 N 22 47 E 6190.50 N 2597,83 E 6713.49 N 22 46 E COMPUTATION DATE: 5-NOV-91 PAGE 8 ARCO ALASKA [NC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG BIN 11025 72 7956 O0 7900 O0 51 38 11186 37 8056 11346 14 8156 11503 97 8256 11658 23 8356 11821 65 8456 12007 10 8556 12222 96 8656 12536.35 8756 12978.82 8856 O0 8000 O0 8100 O0 8200 O0 8300 O0 8400 O0 8500 O0 8600 O0 8700 O0 8800 O0 51 21 O0 51 3 O0 50 7 O0 49 45 O0 54 19 O0 59 59 O0 64 29 O0 76 56 O0 76 56 N 22 36 E 6840.84 N 22 33 E 6966.57 N 22 33 E 7091.18 N 22 49 E 7213.27 N 23 0 E 7330.73 N 22 0 E 7459.93 N 22 5 E 7616.00 N 25 51 E 7807.13 N 23 28 E 8103.09 N 23 28 E 8534.08 0 30 0 38 061 0 75 3 89 1 14 0 97 3 78 0 O0 0 O0 6308.22 N 2646.41 E 6840.85 N 22 46 E 6424 27 N 2694.80 E 6966.58 N 22 45 E 6539 6652 6760 6879 7023 7198 7467 7862 40 N 2742.47 E 7091.19 N 22 45 E O0 N 2789.69 E 7213 28 N 22 45 E 20 N 2835.40 E 7330 74 N 22 45 E 45 N 2885.09 E 7459 93 N 22 45 E 93 N 2944.14 E 7616 07 N 22 44 E 26 N 3022.64 E 7807 ~3 N 22 ~? E 33 K 3146.28 E 8103 09 N 22 5: E 69 N 33i7,93 E 8534 08. N 22 53 E 13421,29 8956.00 8900.00 76 56 13863.75 9056.00 9000.00 76 56 14306.22 9156.00 9100.00 76 56 14748.69 9256.00 9200.00 76 56 14969.00 9305.79 9249.79 76 56 N 23 28 E 8965.07 N 23 28 E 9396.07 N 23 28 E 9827.06 N 23 28 E 10258.05 N 23 28 E 10472.65 0.00 0.00 0.00 0.00 0.00 8258.05 N 3489.59 E 8965.08 N 22 54 E 8653.42 N 3661.24 E 9396.08 N 22 56 E 9048.78 N 3832.89 E 9827.08 N 22 57 E 9444.14 N 4004.55 E10258.08 N 22 59 E 9641.00 N 4090.02 E10472.68 N 22 59 E COMPUTATION DATE: 5-NOV-91 PAGE 9 ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY INTERPOLATED VALUES FOR CHOSEN HORIZONS SURFACE LOCATION = 2132' FSL, 2117' FEL,, 5EC24 T11N R15E MARKER MEASURED DEPTH BELOW KB TVD FROM KB SUB-SEA RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST TOP 7 5/8" CASING BOTTOM 9 5/8" CASING GCT LAST READING BOTTOM 7 5/8" CASING TD 10575.0O 10870.00 12484.00 12585.00 14969.00 7679.21 7623.21 7859.83 7B03.83 8744.17 8688.17 B766.99 8710.99 ~305.79 9249.79 5978.51 N 2512.94 E 6195.02 N 2599.67 E 7420.55 N 3125.97 E 7510.79 N 3165.15 E 9641.00 N 4090.02 E ARCO ALASKA INC. LISBURNE L4-12 PRUDHOE BAY/LISBURNE POOL NORTH SLOPE, ALASKA MARKER TD COMPUTATION DATE: 5-NOV-91 PAGE 10 DATE OF SURVEY: 30-0CT-1991 KELLY BUSHING ELEVATION: 56.00 FT ENGINEER: CHENEVEY ************ STRATIGRAPHIC SUMMARY ************ SURFACE LOCATION = 2132' FSL, 21t?' FEL,, SEC24 TllN R15E MEASURED DEPTH TVD RECTANGULAR COORDINATES BELOW KB FROM KB SUB-SEA NORTH/SOUTH EAST/WEST 14969.00 9305.79 9249.79 9641.00 N 4090.02 E FINAL WELL LOCATION AT TD: TRUE SUB-SEA MEASURED VERTICAL VERTICAL DEPTH DEPTH DEPT~ 14969.00 9305.79 9249.79 HORIZONTAL DEPARTURE DISTANCE AZIMUTH FEET DEG MIN 10472.68 N 22 59 E DIRECTIONAL SURVEY COMPANY ARCO ALASKA INC. FIELD PRUDHOE BAY/LISBURNE POOL WU.. USBURNE L4..12 COUNTRY USA RUN ONE DATE LOG(tED 30 - OCT - 91 DEPTH UNIT FEET REFERENCE 75130 negllgem~ on o~ pa~ be Hal)ia or respond124e for any los& coma, darnageo or exl)mo Inctm~d or ouKainocf by ~ meul~g from any fnteqxelatJofl made byany O('OLK offloer& agents or emlodoyees. 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"-i-'-}--i---~--'?-?i---hh~-'-h~:'i---hr'-i-'-~',-i---~ ...... ~"-~-"~"-~ ..... hh~'"?',"'??"~'"~.,'"?'?-?"~ ...... ?"?'~ ...... ~"?-~'"~"'hhh~ ...... ??'h~""?'~'"~ ..... ~'"~'"~'"~ ..... ~'"~"'~'"~ ..... ~"'~'"~"'~' :.4..~...~q...,~...~...~-~..:~.~.~...~...~...~ ....... ~...~...~...~ ..... ~...~...~...~ ...... ~-'-h~---h'-'~---hh~ ..... ~---h~---~ ...... ~"-~---~---} ...... ~--'h~---~-'+--~"-~'--~ ...... ~'-'~-"~--'~'"~'-'~---~-'+--~ ..... ..... ....... .................. ....... .... ORiGiNAL PRUDHOE BAY DRILLING L4-12 R E C E I'V E l.,q GREAT LAND DIRECTIONAL DRILLING, INC. REPORT OF SUB-SURFACE DIRECTIONAL SURVEY PRUDHOE BAY DRILLING . COMPANY L4-12 WELL NAME PRUDHOE BAY LOCATION AL1091D38 MWD 11 / 12 / 91 JOB NUMBER TYPE SURVEY D~TE DIRECTIONAL 4 ~ /! NAME TITLE SIGNATURE 250 FT. 14969 FT. .DEPTH INTERVAL FROM TO 09/21/91 10/29/91 DATE SURVEY TAKEN FROM TO THIS IS A RECORD OF A SUB-SURFACE SURVEY OF YOUR WELL WE HAVE RETAINED A COPY OF YOUR SURVEY REPORT IN OUR FILES FOR YOUR CONVENIENCE; HOWEVER, SHOULD YOU SO DESIRE, ALL COPIES OF THE SURVEY REPORT WILL BE FORWARDED TO YOU ON WRITTEN REQUEST. ALL SURVEYS ARE KEPT IN A LOCKED FILE AND ARE HELD IN STRICTEST CONFIDENCE. GREAT LAND DIRECTIONAL DRILLING, Client~.- · · · . · Field~ · Well · Section at: Engineer..: PRUDHOE BAY DRILLING DRILL SITE L4 L4-12 N,22.94,E B. MAGOS/R. WALL INC. S MEAS INCLN C DEPTH ANGLE 3 250 0.10 3 421 0.20 3 511 0.40 3 602 0.40 3 697 1.20 3 787 2.30 3 873 3.40 3 963 4.50 3 1053 5.20 3 1144 6.20 1234 1328 1421 1515 1608 1701 1793 1887 1980 2072 7.10 7.40 9.10 10.80 13.50 15.30 16.20 18.00 18.80 21.40 VERTICAL-DEPTHS BKB SUB-SEA SECTION DISTNCE 250.0 194.5 0.2 421.0 365.5 -0.3 511.0 455.5 -0.7 602.0 546.5 -0.7 697.0 641.5 0.6 786.9 731.4 3.2 872.8 817.3 7.4 962.6 907.1 13.5 1052.3 996.8 21.1 1142.8 1087.3 30.1 1232.2 1176.7 40.5 1325.5 1270.0 52.3 1417.5 1362.0 65.7 1510.1 1454.6 81.9 1601.0 1545.5 101.3 11/12/91 RECORD OF SURVEY Computation...: Survey Date...: RKB Elevation.: Reference ..... : Magnetic Dcln.: MINIMUM CURVATURE 10/29/91 55.50 ft 30.00 E 1691.1 1635.6 124.3 1779.6 1724.1 149.2 1869.5 1814.0 176.8 1957.7 1902.2 206.1 2044.1 1988.6 237.7 DIRECTION BEARING N 49.70 E S 17.00 W S 19.50 W N 22.60~E N 6.40 E N 7.50 E N 13.80 E N 14.50 E N 18.00 E N 21.60 E N 18.00 E N 23.00 E N 26.50 E N 27.20 E N 30.70 E RELATIVE-COORDINATES FROM-WELL-HEAD 0.1 N 0.2 E 0.3 S 0.0 E 0.7 S 0.1 W 0.7 S 0.1 W 0.6 N 0.1 E 3.3 N 0.5 E 7.5 N 1.3 E 13.5 N 2.8 E 20.8 N 5.0 E 29.3 N 8.1 E 39.1 N 11.6 E 50.2 N 15.7 E 62.3 N 21.4 E 76.8 N 28.7 E 93.8 N 38.2 E N 28.90 E 113.9 N 49.7 E N 25.10 E 136.2 N 61.0 E N 26.10 E 161.1 N 73.0 E N 22.60 E 187.8 N 85.0 E N 20.90 E 217.2 N 96.7 E CLOSURE DL DISTNCE BEARING /100 0.2 N 49.70 E 0.04 0.3 S 7.05 E 0.06 0.7 S 8.93 W 0.22 0.7 S 7.64 W 0.88 0.6 N 14.06 E 0.87 3.3 N 8.32 E 1.22 7.6 N 9.97 E 1.33 13.8 N 11.87 E 1.22 21.4 N 13.47 E 0.84 30.4 N 15.40 E 1.17 40.8 N 16.49 E 1.10 52.6 N 17.41 E 0.74 65.8 N 18.93 E 1.91 81.9 N 20.50 E 1.81 101.3 N 22.16 E 3.01 124.3 N 23.57 E 1.99 149.2 N 24.13 E 1.49 176.8 N 24.37 E 1.94 206.2 N 24.36 E 1.47 237.8 N 24.00 E 2.90 3 2169 22.90 2134.0 2078.5 274.3 N 25.80 E 250.7 N 111.3 .E 274.3 N 23.93 E 2.45 ! } j ! ! ! ] ! ! ! J I ! ! ! } ! } '} L4-12 S MEAS INCLN C DEPTH ANGLE 3 2263 23.70 3 2358 25.30 3 2451 27.10 3 2545 27.60 3 2638 27.60 VERTICAL-DEPTHS BKB SUB-SEA SECTION DISTNCE 2220.3 2164.8 311.4 2306.7 2251.2 350.8 2390.2 2334.7 391.8 2473.7 2418.2 434.9 2556.1 2500.6 477.6 RECORD OF SURVEY 2733 29.10 2639.7 2584.2 522.2 2828 31.90 2721.6 2666.1 570.1 2922 34.20 2800.3 2744.8 621.3 3017 36.00 2878.1 2822.6 675.9 3110 37.40 2952.6 2897.1 ~731.5' DIRECTION BEARING RELATIVE-COORDINATES FROM-WELL-HEAD N 24.40 E 284.4 N 127.0 E N 23.30 E 320.4 N 142.9 E N 26.10 E 357.7 N 160.1 E N 28.90 E 396.0 N 180.1 E N 32.10 E 433.1 N 201.9 E N 30.40 E 471.7 N 225.3 E N 27.50 E 513.9 N 248.6 E N 25.80 E 559.7 N 271.6 E N 23.30 E 609.4 N 294.2 E N 21.60 E 660.8 N 315.4 E 3 3203 39.50 3025.5 2970.0 789.3 N 21.60 E 714.5 N 336.7 E 3 3297 40.70 3097.4 3041.9 849.8 N 20.50 E 771.0 N 358.5 E 3 3390 41.80 3167.3 3111.8 911.0 N 20.20 E 828.5 N 379.8 E 3 3483 42.80 3236.1 3180.6 973.5 N 19.80 E 887.3 N 401.2 E 3 3578 44.60 3304.8 3249.3 1039.0 N 18.80 E 949.3 N 422.9 E 3 3673 46.90 3371.0 3315.5 3 3791 49.40 3449.8 3394.3 3 3964 48.80 3563.0 3507.5 3 4057 48.10 3624.7 3569.2 3 4150 48.30 3686.7 3631.2 3 4242 49.00 3747.5 3692.0 3 4335 48.80 3808.6 3753.1 3 4429 48.60 3870.7 3815.2 3 4523 48.50 3932.9 3877.4 3 4618 48.30 3996.0 3940.5 1106.9 1194.6 1325.1 1394.6 1463.9 1532.9 1603.0 1673.6 1744.1' 1815.1 N 19.10 E 1013.6 N 445.0 E N 18.80 E 1096.8 N 473.5 E N 20.20 E 1220.0 N 517.2 E N 19.80 E 1285.4 N 541.0 E N 21.20 E 1350.4 N 565.2 E N 21.90 E N 21.90 E N 23.00 E N 21.90 E N 21.60 E N 22.60 E 3 4712 48.20 4058.6 4003.1 1885.2 1414.6 N 590.6 E 1479.6 N 616.8 E 1544.9 N 643.7 E 1610.0 N 670.6 E 1676.0 N 696.9 E 1741.0 N 723.3 E Page 2 11/12/91 CLOSURE DISTNCE BEARING 311.5 N 24.07 E 350.9 N 24.04 E 391.9 N 24.11 E 435.0 N 24.45 E 477.9 N 25.00 E 522.7 N 25.53 E 570.9 N 25.82 E 622.1 N 25.88 E 676.7 N 25.77 E 732.2 N 25.52 E DL /1oo 1.04 1.75 2.35 1.47 1.59 1.79 3.33 2.64 2.42 1.86 789.9 N 25.23 E 2.26 850.3 N 24.93 E 1.48 911.4 N 24.63 E 1.20 973.8 N 24.33 E 1.11 1039.2 N 24.01 E 2.03 1107.0 N 23.70 E 1194.6 N 23.35 E 1325.1 N 22.97 E 1394.6 N 22.82 E 1463.9 N 22.71 E 2.43 2.13 0.70 0.82 1.14 1532.9 N 22.66 E 0.95 1603.0 N 22.63 E 0.22 1673.6 N 22.62 E 0.90 1744.1 N 22.61 E 0.88 1815.1 N 22.58 E 0.32 1885.2 N 22.56 E 0.80 ASurvey Codes: 3/MWD ! ! J ! ! ! ! ! ! ! ) ! i } ! ] ! ! L4-12 S MEAS INCLN C DEPTH ANGLE 3 '4807 47.90 3 4900 48.20 3 4994 48.80 3 5087 49.00 3 5180 49.60 VERTICAL-DEPTHS BKB SUB-SEA .SECTION DISTNCE 4122.1 4066.6 1955.9 4184.2 4128.7 2025.0 4246.5 4191.0 2095.4 4307.7 4252.2 2165.5 4368.3 4312.8 2236.0 3 5274 50.20 4428.8 4373.3 3 5368 50.60 4488.8 4433.3 3 5463 51.50 4548.5 4493.0 3 5558 52.20 4607~2 4551.7 3 5652 51.70 4665.1 4609.6 RECORD OF SURVEY 2307.9 2380.3 2454.2 2528.9 2602.9 3 5746 51.50 3 5839 51.90 3 5928 52.90 3 6021 52.60 3 6114 52.50 DIRECTION BEARING RELATIVE-COORDINATES FROM-WELL-HEAD N 23.00 E 1806.1 N 750.7 E N 22.60 E 1869.9 N 777.5 E N 22.60 E 1934.9 N 804.6 E N 24.00 E 1999.2 'N 832.3 E N 24.00 E 2063.6 N 861.0 E N 23.30 E 2129.5 N 889.8 E N 23.00 E 2196.1 N 918.3 E N 23.30 E 2264.0 N 947.3 E N 21.90 E 2333.0 N 976.0 E N 23.00 E 2401.4 N 1004.3 E 4723.5 4668.0 2676.6 N 23.00 E 2469.2 N 1033.1 E 4781.1 4725.6 2749.6 N 21.90~E 2536.7 N 1060.9 E 4835.4 4779.9 2820.1 N 23.00 E 2601.8 N 1087.9 E 4891.7 4836.2 2894.1 N 23.70 E 2669.8 N 1117.2 E 4948.3 4892.8 2967.9 N 22.30 E 2737.7 N 1146.1 E 3037.7 3115.8 3188.6 3263.4 3338.6 3410.9 3484.3 3556.9 3628.5 3704.8 3 6202 52.50 5001.9 4946.4 3 6301 51.70 5062.7 5007.2 3 6394 51.30 5120.6 5065.1 3 6490 51.10 5180.7 5125.2 3 6587 50.70 5241.9 5186.4 3 6680 51.40 5300.4 5244.9 3 6774 51.20 5359.1 5303.6 3 6868 49.90 5418.9 5363.4 3 6960 52.40 5476.6 5421.1 3 7055 54.40 5533.2 5477.7 3 7149 55.70 5587.1 5531.6 N 22.30 E N 20.90 E N 21.90 E N 21.80 E N 20.50 E N 21.90 E N 22.60 E N 23.30 E N 23.00 E N 22.30 E 2802.3 N 1172.6 E 2875.0 N 1201.3 E 2942.7 N 1227.9 E 3012.2 N 1255.7 E 3082.4 N 1282.9 E 3781.8 3149.8 N 1309.0 E 3217.7 N 1336.8 E 3284.5 N 1365.1 E 3350.4 N 1393.3 E 3420.8 N 1422.6 E N 24.00 E 3491.6 N 1452.9 E Page 3 11/12/91 CLOSURE DI STNCE BEARING /1oo 1955.9 N 22.57 E 0.44 2025.1 N 22.58 E 0.45 2095.5 N 22.58 E 0.64 2165.5 N 22.60 E 1.15 2236.0 N 22.65 E 0.65 2307.9 N 22.68 E 0.86 2380.3 N 22.69 E 0.49 2454.2 N 22.71 E 0.98 2528.9 N 22.70 E 1.37 2602.9 N 22.70 E 1.06 2676.6 N 22.70 E 0.21 2749.6 N 22.70 E 1.02 2820.1 N 22.69 E 1.49 2894.1 N 22.71 E 0.68 2967.9 N 22.71 E 1.20 3037.8 N 22.71 E 0.00 3115.9 N 22.68 E 1.38 3188.6 N 22.65 E 0.95 3263.4 N 22.63 E 0.22 3338.7 N 22.60 E 1.12 3411.0 N 22.57 E 1.39 3484.3 N 22.56 E 0.62 3556.9 N 22.57 E 1.50 3628.6 N 22.58 E 2.73 3704.8 N 22.58 E 2.19 3781.9 N 22.59 E 2.03 ~Survey Codes: 3/MWD ! j } ; ! i ) 'l ! ! ! I ) ~ i ] -- ! ! ) L4-12 3 3 3 3 3 · 3 3 3 3 3 MEAS INCLN VERTICAL-DEPTHS DEPTH ANGLE BKB SUB-SEA 7245 55.90 5641.0 5585.5 7339 56.50 5693.3 5637.8 7432 55.10 5745.6 5690.1 7526 54.70 5799.6 5744.1 7620 54.00 5854.4 5798.9 7715 53.30 5910.7 5855.2 7810 52.60 5968.0 5912.5 7903 52.30 6024.6 5969.1 7997 52.60 6081.9 6026.4 8090 53.30 6138.0 6082.5 3 8185 52.40 6195.3 6139.8 3 8279 50.60 6253.9 6198.4 3 8374 49.90 6314.6 6259.1 3 8468 49.70 6375.3 6319.8 3 8562 50.10 6435.8 6380.3 3 8655 49.30 6496.0 6440.5 3 8750 49.20 6558.0 6502.5 3 8844 50.30 6618.7 6563.2 3 8938 50.40 6678.7 6623.2 3 9032 50.40 6738.6 6683.1 SECTION DISTNCE 3861.2 3939.3 4016.2 4093.1 4169.4 4245.9 4321.7 4395.3 4469.8 4544.0 4619.7 4693.2 4766.2 4837.9 4909.8 RECORD OF SURVEY 4980.6 5052.6 5124.2 5196.5 5268.9 3 9126 49.70 6799.0 6743.5 5340.9 3 9218 48.70 6859.1 6803.6 5410.5 3 93,11 49.30 6920.1 6864.6 5480.7 3 9406 50.00 6981.6 6926.1 5553.1 3 9500 50.80 7041.5 6986.0 5625.5 DIRECTION BEARING RELATIVE-COORDINATES FROM-WELL-HEAD N 24.40 E 3564.1 N 1485.5 E N 23.70 E 3635.4 N 1517.3 E N 22.30 E 3706.2 N' 1547.4 E N 21.60 E 3777.5 N 1576.1 E N 21.20 E 3848.6 N 1604.0 E N 20.50 E 3920.1 N 1631.2 E N 21.20 E 3991.0 N 1658.2 E N 20.50 E 4059.9 N 1684.5 E N 20.50 E 4129.7 N 1710.6 E N 22.30 E 4198.8 N 1737.6 E N 21.90 E 4268 . 9 N 1766.1 E N 21.20 E 4337.4 N 1793 . 2 E N 19.80 E 4405.8 N 1818.7 E N 20.50 E 4473.2 N 1843.5 E N 20.50 E 4540.5 N 1868.6 E N 21.20 E N 20.50 E N 19.80 E N 20.50 E N 20.90 E N 21.90 E N 21.20 E N 21.20 E N 21.90 E N 21.60 E 3 9593 51.60 7099.8 7044.3 5697.9 N 20.90 E ASurvey Codes: 3/MWD 4606.8 N 1893.9 E 4674.1 N 1919.5 E 4741.4 N 1944.2 E 4809.4 N 1969.1 E 4877.1 N 1994.7 E 4944.2 N 5009.0 N 5074.4 N 5141.8 N 5209.0 N 2021.0 E 2046.6 E 2072.0 E 2098.6 E 2125.4 E 5276.6 N 2151.7 E Page 4 11/12/91 CLOSURE DL DISTNCE BEARING /100 3861.2 N 22.63 E 0.40 3939.3 N 22.65 E 0.89 4016.2 N 22.66 E 1.95 4093.1 N 22.65 E 0.74 4169.5 N 22.62 E 0.82 4246.0 N 22.59 E 0.95 4321.8 N 22.56 E 0.94 4395.5 N 22.53 E 0.68 4469.9 N 22.50 E 0.32 4544.1 N 22.48 E 1.72 4619.9 N 22.48 E 1.01 4693.4 N 22.46 E 2.00 4766.4 N 22.43 E 1.35 4838.1 N 22.40 E 0.61 4910.0 N 22.37 E 0.43 4980.9 N 22.35 E 1.03 5052.9 N 22.33 E 0.57 5124.5 N 22.30 E 1.30 5196.9 N 22.27 E 0.58 5269.3 N 22.24 E 0.33 5341.3 N 22.23 E 1.10 5411.0 N 22.22 E 1.23 5481.1 N 22.21 E 0.65 5553.5 N 22.20 E 0.93 5626.0 N 22.20 E 0.89 5698.4 N 22.18 E 1.04 ) J ) t I ! ! I ! ) ! ! I I ! 1 ......... ] ) L4-12 3 3 3 3 3 MEAS INCLN DEPTH ANGLE VERTICAL-DEPTHS BKB SUB-SEA 9687 52.50 7157.6 7102.1 9781 53.40 7214.3 7158.8 9879 53.60 7272.6 7217.1 9973 53.40 7328.5 7273.0 10067 53.30 7384.6 7329.1 3 10158 53.20 7439.0 7383.5 3 10253 53.10 7496.0 7440.5 3 10347 52.90 7552.6 '7497.1 3 10440 52.70 7608.8 7553.3 3 10536 52.60 7667.0 7611.5 3 10627 52.30 7722.5 7667.0 3 10722 52.20 7780.7 7725.2 3 10816 ~52.00 7838.4 7782.9 3 11009 51.50 7957.9 7902.4 3 11099 51.40 8014.0 7958.5 ? 3 11193 51.30 8072.7 8017.2 3 11286 51.10 8131.0 8075.5 3 11380 50.90 8190.1 8134.6 3 11475 50.10 8250.5 8195.0 3 11571 49.60 8312.4 8256.9 3 11661 50.00 8370.5 8315.0 3 11758 52.70 8431.1 8375.6 3 11851 55.50 8485.6 8430.1 3 11944 58.40 8536.4 8480.9 3 12043 61.00 8586.3 8530.8 12133 62.60 8628.8 8573.3 ~Survey Codes: 3/MWD RECORD OF SURVEY SECTION DISTNCE DIRECTION BEARING RELATIVE-COORDINATES FROM-WELL-HEAD Page 5 CLOSURE DISTNCE BEARING 5772.0 N 21.60 E 5345.7 N 2178.6 E 5772.5 N 22.17 E 5847.0 N 21.60 E 5415.4 N 2206.2 E 5847.6 N 22.17 E 5925.8 N 23.70 E 5488.1 N 2236.5 E 5926.3 N 22.17 E 6001.3 N 22.60 E 5557.6 N 2266.2 E 6001.9 N 22.18 E 6076.8 N 21.90 E 5627.4 N 2294.8 E 6077.3 N 22.19 E 6149.7 6225.7 6300.7 6374.8 6451.1 N 22.30 E N 21.90 E N 21.60 E N 21.90 E N 21.90 E N 21.90 E N 22.60 E N 22.30 E N 23.30 E N 23.00 E N 22.30 E N 21.60 E N 22.60 E N 22.30 E N 22.30 E N 22.30 E N 21.60 E N 21.60 E N 22.30 E N 21.90 E N 24.40 E 6523.2 6598.3 6672.5 6824.1 6894.5 6967.9 7040.3 7113.4 7186.7 7260.1 5694.9 N 5765.4 N 5835.1 N 5903.9 N 5974.7 N 2322.2 E 2350.8 E 2378.6 E 2406.1 E 2434.5 E 6041.6 N 6111.2 N 6179.7 N 6319.4 N 6384.2 N 2461.5 E 2489.9 E 2518.2 E 2577.0 E 2604.6 E 6451.9 N 6519.1 N 6586.8 N 6654.6 N 6722.5 .N 6150.2 N 22,18 E 6226.2 N 22.18 E 6301.3 N 22.18 E 6375.4 N 22.17 E 6451.7 N 22.17 E 6786.1 N 6856.3 N 6926.3 N 6998.6 N 7077.8 N 6523.8 N 22.17 E 6598.9 N 22.17 E 6673.1 N 22.17 E 6824.7 N 22.18 E 6895.0 N 22.19 E 2632.9 E 6968.4 N 22.20 E 2660.0 E 7040.9 N 22.20 E 2687.5 E 7114.0 N 22.20 E 2715.5 E 7187.3 N 22.20 E 2743.3 E 7260.7 N 22.20 E 7328.8 7404.5 7479.8 7557.8 7643.2 11/12/91 7722.5 2769.4 E 2797.7 E 2825.4 E 2854.6 E 2886.7 E 7150.7 N 2917.9 E 7329.4 N 22.20 E 7405.1 N 22.20 E 7480.5 N 22.19 E 7558.4 N 22.19 E 7643.9 N 22.19 E 7723.2 N 22.20 E DL /lOO 1.12 0.96 1.73 0.96 0.61 0.37 0.35' 0.33 0.34 0.10 0.33 0.59 0.33 0.48 0.28 0.59 0.62 0.85 0.88 0.52 0.44 2.84 3.01 3.18 2.65 3.03 L4-12 S. MEAS INCLN C DEPTH ANGLE 3 ~2224 64.70 3 12320 67.90~ 3 12408 72.40 3 12499 78.00 3 12600 84.90 3 12660 85.30 3 12745 86.00 3 12835 87.60 3 12924 88.00 3 13018 88.30 3 13111 89.70 3 13195 90.60 3 13279 90.40 3 13336 88.80 3 13396 87.00 3 13487 84.10 3 13578 83.10 3 13670 81.90 3 13761 81.70 3 13853 83.30 3 13944 82.90 3 14036 83.40 3 14130 83.70 3 14221 83.90 3 14312 84.00 3 14403 84.70 VERTICAL-DEPTHS BKB SUB-SEA 8669.2 8613.7 8707.8 8652.3 8737.7 8682.2 8760.9 8705.4 8775.9 8720.4 8781.1 8725.6 8787.5 8732.0 8792.5 8737.0 8795.9 8740.4 8799.0 8743.5 8800.6 8745.1 8800.4 8744.9 8799.6 8744.1 8800.0 8744.5 8802.2 8746.7 8809.3 8753.8 8819.4 8763.9 8831.5 8776.0 8844.4 8788.9 8856.4 8800.9 8867.4 8811.9 8878.3 8822.8 8888.9 8833.4 8898.7 8843.2 8908.3 8852.8 8917.3 8861.8 RECORD OF SURVEY sEcTIoN DIRECTION RELATIVE-COORDINATES DISTNCE BEARING FROM-WELL-HEAD 7804.0 N 24.70 E 7224.9 N 2951.8 E 7891.9 N 25.80 E 7304.4 N 2989.3 E 7974.6 N 23.70 E 7379.6 N 3023.9 E 8062.5 N 23.30 E 7460.2 N 3059.0 E 8162.3 N 21.70 E 7552.4 N 3097.2 E 8222.1 N 21.80 E 7608.0 N 3119.3 E 8306.8 N 20.90 E 7686.9 N 3150.2 E 8396.5 N 19.40 E 7771.2 N 3181.1 E 8485.4 N 21.00 E 7854.7 N 3211.8 E 8579.2 N 20.30 E 7942.6 N 3245.0 E 8672.1 N 20.40 E 8029.8 N 3277.3 E 8756.0 N 19.40 E 8108.8 N 3305.9 E 8839.8 N 19.10 E 8188.1 N 3333.6 E 8896.7 N 19.80 E 8241.8 N 3352.6 E 8956.6 N 19.10 E 8298.4 N 3372.5 E 9047.1 N 18.80 E 8384.2 N 3402.0 E 9137.3 N 19.40 E 8469.6 N 3431.6 E 9228.3 .N 18.60 E 8555.9 N 3461.3 E 9318.0 N 17.20 E 8641.6 N 3489.0 E 9408.8 N 18.00 E 8728.5 N 3516.5 E 9498.8 N 17.40 E 8814.6 N 3544.0 E · 9'589.8 N 18.20 E 8901.5 N 3571.9 E 9682.8 N 18.10 E 8990.3 N 3601.0 E 9772.8 N 16.20 E 9076.7 N 3627.7 E 9862.7 N 16.10 E 9163.7 N 3652.9 E 9952.7 N 16.80 E 9250.5 N 3678.5 E Page 6 11/12/91 CLOSURE DL DISTNCE BEARING /100 7804.6 N 22.22 E 2.33 7892.4 N 22.26 E 3.49 7975.1 N 22.28 E 5.58 8063.0 N 22.30 E 6.17 8162.8 N 22.30 E 7.01 8222.6 N 22.29 E 0.69 8307.3 N 22.28 E 1.34 8397.1 N 22.26 E 2.44 8486.0 N 22.24 E 1.85 8579.9 N 22.22 E 0.81 8672.9 N 22.20 E 1.51 8756.8 N 22.18 E 1.60 8840.7 N 22.15 E 0.43 8897.6 N 22.14 E 3.06 8957.5 N 22.12 E 3.22 9048.1 N 22.09 E 3.20 9138.4 N 22.06 E 1.28 9229.5 N 22.03 E 1.56 9319.3 N 21.99 E 1.54 9410.3 N 21.94 E 1.94 9500.3 N 21.90 E 0.79 9591 . 5 N 21.86 E 1 . 02 9684.7 N 21.83 E 0.34 9774.8 N 21.79 E 2.09 9864.9 N 21.73 E 0.15 9955.1 N 21.69 E 1.09 ^Survey Codes: 3/MWD L4-12 S MEAS INCLN C .DEPTH ANGLE 3 14495 84.00 3 14586 81.50 3 14676 79.30 3 14767 78.50 3 14858 78.40 VERTICAL-DEPTHS BKB SUB-SEA RECORD OF SURVEY SECTION DISTNCE DIRECTION BEARING 8926.3 8870.8 10043.7 N 16.20 E 8937.8 8882.3 10133.3 N 16.00 E 8952.8 8897.3 10221.3 N 15.30 E 8970.4 8914.9 10309.7 N 14.20 E 8988.6 8933.1 10397.7 N 13.30 E 3 14907 78.60 8998.3 8942.8 10445.1 J 14969 78.60 9010,6 8955.1 10505.2 3/MWD J/PROJECTED ~Survey Codes: N 14.40 E N 14.40 E RELATIVE-COORDINATES FROM-WELL-HEAD 9338.3 N 9425.0 N 9510.5 N 9596.8 N 9683.4 N 3704.5 E 3729.6 E 3753.5 E 3776.2 E 3797.4 E Page 7 CLOSURE DISTNCE BEARING 11/12/91 10046.2 10136.1 10224.4 10313.0 10401.4 N 21.64 E N 21.59 E N 21.54 E N 21.48 E N 21.41 E 9730.0 N 3808.9 E 10449.0 N 21.38 E 9788.9 N 3824.0 E 10509.3 N 21.34 E DL /1oo 1.00 2.76 2.56 '~) 1.48 0.98 2.24 0.00 L4-12 Page DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL 8 11/12/91 SUBSEA DEPTH 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200' 2300 2400 2500 2600 MEAS DEPTH 256 356 456 556 656 756 856 956 1056 1157 1257 1358 1459 1561 1664 1768 1872 1978 2084 2192 2302 2412 2524 2637 2751 INCLN TVD MD-TVD VERT DIRECTION ANGLE BKB DIFF CRRT BEARING 0.10 256 0 0 N 54.44 E 0.16 356 0 0 S 39.42 E 0.28 456 0 0 S '17.96 W 0.40 556 0 0 S 67.01 E 0.85 656 0 0 ~N 13.48 E,~ 1.92 756 0 0 N 7.12 E 3.18 856 0 0 N 12.53 E 4.41 956 0 0 N 14.44 E 5.24 1056 1 0 N 18.13 E 6.33 1156 1 1 N 21.09 E 7.17 1256 2 1 N 19.25 E 7.95 1356 3 1 N 24.14 E 9.80 1456 4 1 N 26.79 E 12.14 1556 6 2 N 28.94 E 14.59 1656 9 3 N 29.61 E 15.95 1756 12 4 N 26.14 E 17.72 1856 17 4 N 25.94 E 18.78 1956 22 5 N 22.69 E 21.59 2056 29 7 N 21.52 E 23.10 2156 37 8 N 25.45 E 24.35 2256 46 9 N 23.95 E 26.35 2356 57 11 N 24.93 E 27.49 2456 69 12 N 28.29 E 27.60 2556 82 13 N 32.08 E 29.63 2656 96 14 N 29.85 E RELATIVE COORDINATES FROM WELL HEAD 0.15 N 0.17 E 0.05 S 0.32 E 0.42 S 0.01 W 0.94 S 0.02 W 0.18 S 0.07 E 2.14 N 0.33 E 6.50 N 1.07 E 12.94 N 2.69 E 21.06 N 5.07 E 30.56 N 8.57 E 41.84 N 12.50 E 53.88 N 17.35 E ~67.92 N 24.19 E 84.88 N 33.04 E 105.63 N 45.06 E 129.90 N 58.01 E 157.04 N 70.98 E 187.13 N 84.75 E 221.38 N 98.35 E 258.97 N 115.21 E 298.71 N 133.44 E 341.96 N 152.58 E 387.68 N 175.52 E 432.85 N 201.76 E 479.37 N 229.77 E 2700 2868 32.88 2756 113 17 N 26.77 E 533.05 N 258.41 E ! I ! ! } ) ! ) ! ! ! ! } - ! L4-12 SUBSEA · DEPTH 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 MEAS DEPTH 2989 3114 3242 3374 3510 3650 3800 3953 4103 4254 4406 4557 4707 4857 5O08 Page DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL INCLN TVD MD-TVD VERT ANGLE BKB DIFF CRRT 35.47 2856 134 21 37.48 2956 158 24 40.00 3056 187 28 41.61 3156 219 32 43.30 3256 254 35 46.35 3356 295 41 49.37 3456 344 49 48.84 3556 397 53 48.20 3656 448 51 48.97 3756 499 51 9 11/12/91 48.65 3856 551 48.43 3956 602 48.20 4056 652 48.06 4156 701 48.83 4256 752 4300 5160 49.47 4356 805 4400~, . 5316 50.38 4456 860 4500 5474 51.58 4556 919 4600 5636 51.78 4656 981 4700 5798 51.72 4756 1042 4800 5961 52.79 4856 1106 4900 6126 52.50 4956 1170 5000 6289 51.79 5056 1234 5100 6450 51.18 5156 1294 5200 6609 50.86 5256 1353 DIRECTION BEARING 'N 24.03 E N 21.60 E N 21.14 E N 20.25 E N 19.52 E N 19.03 E N 18.87 E N 20.11 E N 20.49 E N 21.90 E 52 N 22.73 E 51 N 21.79 E 50 N 22.55 E 50 N 22.79 E 51 N 22.81 E 53 N 24.00 E 55 N 23.17 E 59 N 23.13 E 62 N 22.82 E 61 N 22.39 E 64 N 23.25 E 65 N 22.30 E 64 N 21.06 E 60 N 21.84 E 59 N 20.82 E RELATIVE COORDINATES FROM WELL HEAD 594.52 N 287.73 E 662.80 N 316.25 E 737.79 N 345.83 E 818.67 N 376.16 E 904.43 N 407.30 E 998.10 N 439.60 E 1103.10 N 475.68 E 1211.95 N 514.19 E 1317.69 N 552.80 E 1423.14 N 594.05 E 1529.02 N 637.03 E 1633.69 N 680.12 E 1737.80 N 722.02 E 1840.28 N 765.14 E 1944.32 N 808.53 E 2049.91 N 854.86 E 2158.97 N 902.46 E 2272.13 N 950.81 E 2390.17 N 999.55 E 2506.47 N 1048.66 E 2626.17 N 1098.27 E 2746.44 'N 1149.63 E 2866.48 N 1198.06 E 2983.11 N 1244.08 E 3097.97 N 1288.76 E 5300 6768 51.21 5356 1413 60 N 22.56 E 3213.52 N 1335.08 E L4-12 Page 10 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL 11/12/91 SUBSEA MEAS INCLN DEPTH DEPTH ANGLE TVD BKB 5400 6926 51.47 5456 5500 7094 54.93 5556 5600 7271 56.07 5656 5700 7449 55.03 5756 5800 7622 53.99 5856 5900 7789 52.75 5956 6000 7954 52.46 6056 6100 8119 53.02 6156 6200 8282 50.58 6256 6300 8437 49.77 6356 6400 8593 49.84 6456 6500 8746 49.20 6556 6600 8902 50.36 6656 6700 9058 50.20 6756 6800 9213 48.76 6856 6900 9365 49.70 6956 7000 9522 50.99 7056 7100 9684 52.47 7156 7200 9850 53.54 7256 7300 10018 53.35 7356 7400 10185 53.17 7456 7500 10352 52.89 7556 7600 10517 52.62 7656 7700 10681 52.24 7756 7800 10844 51.93 7856 MD-TVD VERT DIRECTION RELATIVE COORDINATES DIFF CRRT BEARING FROM WELL HEAD 1470 58 N 23.11 E 3325.66 N 1382.74 E 1538 68 N 23.00 E 3449.82 N 1434.75 E 1615 77 N 24.21 E 3583.61 N 1494.31 E 1694 78 N 22.17 E 3719.32 N 1552.74 E 1766 73 N 21.19 E 3850.01 N 1604.53 E 1834 68 N 21.05 E 3975.73 N 1652.32 E 1898 64 N 20.50 E 4097,.38 N 1698.47 E 1964 66 N 22.18 E 4220.45 N 1746.49 E 2026 62 N 21.16 E 4339.23 N 1793.87 E 2082 56 N 20.27 E 4451.29 N 1835.33 E 2137 55 N 20.73 E 4562.44 N 1876.89 E 2191 54 N 20.53 E 4671.36 N 1918.49 E 2246 55 N 20.23 E 4783.08 N 1959.39 E 2303 57 N 21.18 E 4896.08 N 2002.05 E 2357 54 N 21.24 E 5005.15 N 2045.14 E 2410 53 N 21.60 E 5112.99 N 2087.12 E 2467 57 N 21.43 E 5225.00 N 2131.73 E 2528 61 N 21.57 E 5343.09 N 2177.55 E 2595 67 N 23.08 E 5466.90 N 2227.35 E 2663 68 N 22.26 E 5591.19 N 2280.11 E 2730 67 N 22.18 E 5715.30 N 2330.55 E 2796 66 N 21.62 E 5838.69 N 2380.06 E 2861 65 N 21.90 E 5960.70 N 2428.92 E 2925 64 .N 22.30 'E.. 6081.17 N 2477.51 E 2988 63 N 22.44 E 6199.93 N 2526.54 E 7900 11005 51.51 7956 3050 61 N 23.28 E 6316.68 N 2575.77 E ! J J J ! ! ! ! ! L4-12 SUBSEA DEPTH MEAS DEPTH DATA INTERPOLATED FOR 100 INCLN TVD ANGLE BKB 8000 11166 51.33 8056 8100 11325 51.02 8156 8200 11483 50.06 8256 8300 11638 49.90 8356 8400 11799 53.93 8456 Page 11 FT SUBSEA INTERVAL MD-TVD VERT DIRECTION DIFF CRRT BEARING 3110 60 N 22.50 E 3170 60 N 22.02 E 3227 58 N 22.30 E 3282 55 N 22.30 E~ 3343 61 N 21.60 E 11/12/91 8500 11981 59.37 8556 3426 8600 12192 63.97 8656 3537 8700 12474 76.49 8756 3719 8800 13845 83.16 8856 4990 8900 14690 79.17 8956 5735 RELATIVE CooRDINATES FROM WELL HEAD 6432.06 N 2624.72 E 6547.32 N 2671.27 E 6660.04 N 2717.71 E 6769.50 N 2762.61 E 6886.75 N 2809.75 E 82 N 22.15 E 7028.00 N 2866.57 E 111 N 24.60 E 7198.96 N 2939.88 E 182 N 23.41 E 7438.23 N 3049.50 E 1271 N 17.93 E 8720.97 N 3514.10 E 745 N 15.13 E 9523.99 N 3757.17 E ) ! ) ! ! ) ) ) ! ) ! ! ! ) ) ) L4-12 Page 12 DATA INTERPOLATED FOR 1000 FT MEASURED DEPTH INTERVAL 11/12/91 MEAS INCLN VERT-DEPTHS SECT DIRECTION REL-COORDINATES CLOSURE DEPTH ANGLE BKB SUB-S DIST BEARING FROM-WELLHEAD DIST 3000 35.68 2864 2809 666 N 23.75 E 600 N 4000 48.53 3587 3531 1352 N 20.05 E 1245 N 5000 48.81 4250 4195 2100 N 22.69 E 1939 N BEARING DL/ 100 4 E 17 N 12.47 E 0.8 88 E 213 N 24.30 E 2.9 290 E 667 N 25.81 E 2.4 526 E 1352 N 22.91 E 0.8 806 E 2100 N 22.58 E 1.2 6000 52.67 4879 4823 2877 N 23.54 E 2654 N 7000 53.24 5501 5445 3660 N 22.71 E 3380 N 8000 52.62 6084 6028 4472 N 20.56 E 4132 N 9000 50.'40 6718 6663 5244 N 20.76 E 4854 N 10000 53.37 7345 7289 6023 N 22.40 E 5578 N 1111 E 2877 N 22.70 E 0.7 1406 E 3660 N 22.58 E 2.2 1711 E 4472 N 22.50 E 1.7 1986 E 5245 N 22.25 E 0.3 2275 E 6024 N 22.19 E 0.6 11000 51.52 7952 7897 6817 N 23.25 E 6313 N 12000 59.87 8565 8510 7606 N 22.07 E 7043 N 13000 88.24 8798 8743 8561 N 20.43 E 7926 N 14000 83.20 8874 8819 9554 N 17.89 E '8868 N 2574 E 6818 N 22.18 E 0.5 2873 E 7606 N 22.19 E 2.6 3239 E 8562 N 22.23 E 0.8 3'561 E 9556 N 21.88 E 1.0 A/ PRUDHOE BAy ORZLL ZN6 L4-~2 PLAN VT_EH · CLOSURE ..... : 1050g ft N 2~.34 E DECLINATION.: 30.00 E SCALE ....... : ! inch -' ~600 feet ORAI~N ....... 10400- 9600-~- 8800- 8000- 7200- 6400---- 5600 4800- 4000 ....... 3200- ~ ......................... ' 2400 ........ ; ..... ~§00 ...... 800 .... ~ .......... -800 0 800 t600 2400 3200 4000 4800 5600 6400 7200 8000 8800 <- NEST · EAST -> · , PRUDHOE BAY DRILLI'NG' Marker Identlflcation MD TVD SECTN INCLN 0 0 0.00 90t! 10505 78.60 L4- 2 VERTICAL SECTION Section at: N 22.94 E TVO Scale · ! inch = 2000 feet Dep Scale · i inch = 2000 feet Drawn · !I/13/9! VIEW £reat Lan6 Directional Drilling <KS> 1 I I I ! I I I ! ! I tO000 iiO00 12000 -lO00 ! t000 2000 i I .1 1 i i i I 3000 4000 5000 sooo 7000 sooo 9ooo ioooo ~tooo Section Departure Teleco Oiifield Se( s Inc. 6116 Nielson way Anchorage, AK 99518 (907) 562-2646 December 3, 1991 ORIGIIV,ZlL JOB #848 TAK PRUDHOE BA,Y ~DP_ILLING GROUP ~,~s ~,~. e,~EE/V E D WELL #L4-12 Naska 0il & Gas Cons. Commiss[0~t ~chora~ Attached please find a copy of the final well report for the above mentioned well. Teleco appreciates this opportunity to provide MWD service to the Prudhoe Bay Drilling Group. Teleco is. committed to providing the highest quality MWD Service and we would welcome any comments or questions concerning this report or any of our other services. - S inc~y, Thomas A. Brockway~ Petroleum Eng ± nee~.~j TAB/el Enclosures A S(~NAT COMPANY FINAL WELL REPORT FOR ARCO ALASKA INC. PRUDHOE BAY DRILLING INC. LISBURNE FIELD WELL NO. L4-12 API NO. 50-029-22216 TELECO OILFIELD SERVICES, JOB# 848 TAK Submitted By: Ron Gehres Scott Burkhardt Field Service Engineers October 14, 1991 TABLE OF CONTENTS I. GENERAL WELL INFORMATION II. WELL SUMMARY III. DRILLING AND ENGINEERING IV. FORMATION EVALUATION V. DIRECTIONAL SURVEY DATA VI. MUD INFORMATION VII. BOTTOM HOLE ASSEMBLIES VIII. TELECO TOOL PERFORMANCE IX. TELECO SERVICES DISCLAIMER Teleco does not guarantee the accurateness or correctness of interpretations provided in or from this report. Since all interpretations are opinions based on measurements, Teleco shall under no circumstances be responsible for consequential damages or any other loss, costs, damages or expenses incurred or sustained in connection with the use of any such interpretations. Teleco disclaims all expressed and implied warranties related to it's service which is governed by Teleco's standard terms and conditions. I. GENERAL WELL INFORMATION I. GENERAL WELL INFORMATION OIL COMPANY OIL COMPANY REPRESENTATIVES WELL LOCATION WELL TYPE SPUD DATE DRILLING CONTRACTOR RIG NAME RIG EQUIPMENT TELECO SERVICES TELECO JOB NUMBER TELECO PERSONNEL PRUDHOE BAY DRILLING PBU BOC/NORTH SLOPE ACCT P.O. Box 196612 ANCHORAGE, ALASKA 99519 JAMES CARLILE JERRY HABERTHUR SURFACE LOCATION: 2132' FSL, 2117' FEL SEC.24, TllN, R15E, UM DEVELOPMENT SEPT. 21, 1991 ALASKA UNITED DRILLING NO. 2 DIESEL ELECTRIC DIRECTIONAL SURVEYS GAMMARAY DUAL PROPAGATION RESISTIVITY SURFACE WEIGHT ON BIT RATE OF PENETRATION DOWNHOLE TEMPERATURE 848 TAK SCOTT BURKHARDT RON GEHRES BRIAN BANNAN II. WELL SUMMARY II. WELL SUMMARY Teleco's measurement while drilling services were utilized for Prudhoe Bay Drilling Inc. on well no. L4-12 in the Lisburne Field. Teleco's formation evaluation service was used to provide directional surveys, and a gamma-ray and dual propagation resistivity log. The gamma-ray and resistivity log was used, through correlation, to identify lithologies, pick formation boundaries, and to select a casing point. Logging service commenced at 9792 feet MD and was used to a depth of 12583 feet MD. The 7 3/4 inch DPR tools were used to log 1077 feet in 19.7 hours. The 6 3/4 inch DPR tools were used to log 1665 feet of hole and accumulated 44.5 circulating hours. III. DRILLING AND ENGINEERING III. DRILLING AND ENGINEERING This section briefly outlines the drilling activities involving Teleco on Prudhoe Bay Drilling's well #12 located on L-4 pad in the North Slope Borough, Alaska. A concise description on a run-by-run basis follows. Unless otherwise stated, all depths listed in this section are referenced to measured depth. RUN NO 1: 500 ft. to 1503 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 At 500 feet, Teleco's directional service was initiated. Teleco's MWD was run behind a 2 degree bent sub and Dynadrill slick motor. Some possible magnetic interference was seen at approximately 1250 feet due to a close approach to well number L4-10. L4-10 was 35 feet away at the closest point. RUN NO 2: 1503 ft. to 2533 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 A more aggressive 2 1/2 degree bent sub was used to continue the kickoff. RUN NO 3: 2533 ft. to 3870 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 A 1 degree bent housing motor was used to finish the kickoff. At 3870 feet, the 13 3/8 inch casing point was reached; the bottom hole survey point showed an inclination of 49.4 degrees and a direction of N18.8E. RUN NO 4: 3870 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 A rotary drilling assembly was used for a wiper run to condition the hole for casing. Teleco remained in the drill string to save time used in changing the bottom hole assembly. RUN NO 5: 3870 'ft. to 4862 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 A packed rotary drilling assembly was selected to drill out the 13 3/8 inch casing shoe (set at 3855 feet). A leakoff test gave an equivalent mud weight of 11.4 PPG. ROP's as high as 550 ft/hr clogged the flowline with drilling solids, and several hours were spent opening the line. The rotary assembly was pulled due to decreasing hole inclination. A magnetic single shot was dropped and compared favorably with the Teleco tool. RUN NO 6: 4862 ft. to 6628 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 A 3/4 degree bent housing motor and an insert bit were picked up. At 6562 feet, the motor stopped producing differential pressure, and the string was pulled to check the motor and bit. The motor's driveshaft was broken, and the bit had one cone ready to fall off and many inserts missing. A dropped single shot showed the Teleco tool to be accurate. RUN NO 7: 6628 ft. to 7988 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 Another 3/4 degree bent housing motor replaced the defective one, and a new insert bit was made up. Due to a strong building tendency, the assembly was pulled at 7988 feet to make a BHA change. RUN NO 8: 7988 ft. to 9219 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 To decrease the building tendency, a lead collar was moved away from the bit. The same steerable motor was used. At 9104 feet, the assembly was pulled due to poor penetration rate. RUN NO 9: 9219 ft. to 9841 ft. TOOL NUMBER AND TYPE: 2220-40, 4X MILLER CODE DTF1 A rotary drilling assembly was made up, and a near bit combo (combination stabilizer and roller reamer) was used to clean the hole. The assembly was pulled because of increasing inclination. While tripping out of the hole, the drill string became stuck at 7967 feet bit depth. The pipe could not be worked up or down or rotated, and a Black Magic pill was spotted and allowed to soak into the formation. The pipe remained stuck, and another Black Magic pill was spotted. 650,000 pounds of force were used in an attempt to pull the string free. At this point, a freepoint indicator was used to determine where to shoot the string off. The BHA was unscrewed below the top stabilizer, leaving the following components in the hole: 2 monel drill collars, 1 stabilizer, the Teleco MWD collar, 1 crossover, 2 stabilizers, 2 monel lead collars, one float sub, one near-bit combo, and the bit. A fishing assembly containing fishing jars and numerous collars was run in the hole and stabbed into the fish. The additional weight and fresh jars successfully dislodged the fish from the hole. RUN NO.10: 9841 ft. to 10918 ft. TOOL NUMBER AND TYPE: 1757-53, 4X MILLER CODE DPR-TF3 This run marked the beginning of Teleco's downhole logging services. Teleco tool #1757-53, a gamma ray and dual propagation resistivity device, was run in the hole with a locked rotary assembly and a Smith FDSC bit with 4-11s for jets giving a TFA of 0.37. A weight on bit of 55-60 KLBS with a rotary of 100-120 RPMS was used to average 50-90 feet per hour. Pump pressure was 3000 PSI with 110 SPM. The angle maintained a slow drop, decreasing from 53.6 degrees at the beginning of the run to 51.9 at the end while generally holding a direction of N22E. At a depth of 10918 feet MD, the casing point was reached and the run was ended. Final survey for this run, taken at a depth of 10849 feet, showed an inclination of 51.9 degrees in the direction of N22.3E. RUN No.ll: 10918 ft. to 11632 ft. TOOL NUMBER AND TYPE: 644-51, 4X MILLER CODE DPR-TF3 A packed rotary drilling assembly was used to drill out of the 9 5/8 inch casing shoe. After changing the mud to an oil base system and performing a leak off test, drilling of the 8 1/2 inch hole began. A Smith FDTL bit was used with 3 13's for jets giving a TFA of 0.389. Drill rates for the run averaged 50 to 60 feet per hour while running 40K weight on bit and a rotary of 80-120. A flow rate of 400 gallons per minute was used with 2800 to 3000 PSI. High torque was encountered at the beginning of the run, probably caused by the BHA as it moved through the casing shoe. This resulted in a spotty realtime MWD log until the torque settled out at an approximate depth of 10200 feet. The inclination dropped slowly during the course of this run while direction generally held. The run was ended at a depth of 11632 feet in order to pick up an assembly to begin the second kickoff portion of the well. Final survey taken for the run was at 11571 feet and showed an angle of 49.6 degrees in the direction of N22.3E. RUN No.12:11632 ft. to 12578 ft. TOOL NUMBER AND TYPE: 644-51, 4X MILLER CODE DPR-TF3 A 1 degree bent housing motor and insert bit was picked up to start the second kickoff. The assembly was alternately slid and rotated, with the build rate averaging 3 degrees per hundred feet. While rotary drilling, 30K WOB and 60 RPM were used to average 30 to 40 feet per hour. The motor slid well, and from 30 to 60 feet of tool set per stand were required for the 3 degree build rate. Due to a small amount of background gas, the mud weight was increased from 9.5 to 10.1 PPG. The hole direction was held between N21.6E and N25.8E; the inclination increased from 50 degrees to 78 degrees, with a projected bottom hole angle of 82.8 degrees. At 12578 feet MD, the projected top of the Lisburne formation was only 6 feet below the bit, and a trip was made for a BHA change and fresh bit. RUN No.13:12578 ft. to 12583 ft. TOOL NUMBER AND TYPE: 2615-05, 4X MILLER CODE DPR-TF3 A new Teleco tool was run in the hole, as a precaution due to a problem with the gamma wrap around feature for high values in the realtime log, (the memory log was not affected by this). The same 1 degree bent housing motor was used. Five feet of hole were drilled when the decreased rate of penetration (10 ft/hr) indicated we had located the top of the Lisburne. Bottoms up were circulated, and a short trip was made to clean up the hole. Teleco services were completed at this point. IV. FORMATION EVALUATION IV. FORMATION EVALUATION L4-12 was a high angle production well drilled for Prudhoe Bay Drilling in the Lisburne field, located in the North Slope Borough of Alaska. Teleco logging services were used to correlate known stratigraphic markers in order to identify the top of the Lisburne formation, where a 7 5/8 inch liner would be set. Logging began in the Colville group, at a depth of 9790 feet measured depth. All depths referred to in this section are measured depths below the kelly bushing. Drilling continued in the 12 1/4 inch hole, through the Prince Creek-Schrader Bluff formations to the 9 5/8 inch casing point at a depth of 10918 feet. Directly below this casing point, the K-10 marker was encountered at a depth of approximately 11035 feet (7974 ft. TVD). The K-10 marker was picked using the gamma ray in conjunction with resistivity log response. Gamma values showed a distinct bulge directly above the marker, while resistivity values experienced a slight ramping increase in value. The K-10 was picked where the gamma ray returned to its previous level. The K-10 marks the top of the Seabee formation. The Seabee formation, consisting primarily of interbedded siltstones and clays, typically fine to very fine grained, was drilled from the base of the K-10 to the K-2 marker which is found directly above the zone of high radioactivity. While drilling this section, the K-5 marker was encountered at a depth of approximately 11440 feet (8228 ft. TVD). Directly above the marker, there was a noted increase in gamma values as well as a slight increase in the resistivity curve. The K- 5 occurred where the resistivity and gamma ray curves both dropped back to distinctly lower values. At a depth of approximately 11985 feet (8557 ft. TVD), the K-2 marker was seen on the log. This distinctive marker appeared as a sharp decreasing spike on the resistivity log. At the same time, the gamma trace began its upward ramp indicating the beginning of the HRZ directly below the K-2 marker. This zone is noted by its characteristic high gamma values. At a depth of approximately 12580 feet (8774 ft. TVD), the ROP decreased to a rate of 10 to 12 feet per hour, indicating that the Wahoo limestone member of the Lisburne formation had been reached. The gamma ray and resistivity sensors did ~o~ services were ended at this point. V. DIRECTIONAL SURVEY DATA TELECo OILFIELD SERVICES PRUDHOE BAY DRILLING GROUP Well Name Location Date Surveyed Job No. Survey Performed By : L4-12 : LISBURNE FIELD : : : OCT. 11, 1991 : 848TAK : RON GEHRES This survey is correct to the best of my knowledge and is supported by actual field data. TRUE VERTICAL DEPTH 100' INTERPOLATED ~...~'~i ~ '~ ~i TELECO 'OILFIELD SERVICES ~-~ient : PRUDHOE BAY DRILLING GROUP [11 Name : L4-12 Location : LISBURNE FIELD Date OCT. 11, 1991 Filename : 848TAK Interpolated 100 ft of TVD Plane of Vertical Section : 23.0° Latitude & Departure relate to : SLOT CENTER Vertical Section Originates at : SLOT CENTER Slot Coordinates : Lat 0.000ft : Dep 0.000ft Directions Referenced To : TRUE NORTH Depth at Drill Floor : 0.00 ft Calculation Method : MINIMUM CURVATURE Magnetic Declination :+30° 0.000'E Platform north : +0° 0' 0'' (T) Grid convergence : +0.0000° C-~%ent ', 1.1 Name Location TELECO OILFIELD sERVICES PRUDHOE BAY DRILLING GROUP L4-12 LISBURNE FIELD Page 1 of 3 Date OCT. 11, 1991 Filename : 848TAK Interpolated 100 ft of TVD MD ft 0 100 200 300 400 C~L INC DIR TVD ft deg deg ft 0 0.0 0.0 0.0 100 0.0 19.9 100.0' 100 0,1 39.8 200.0 100 0.1 92.8 300.0 100 0.2 178.9 400.0 500 100 0.4 199.2 500.0 600 100 0.4 26.5 600.0 700 100 1.2 6.4 700.0 800 100 2.5 8.5 800.0 900 100 3.7 14.0 900.0 1001 100 4.8 1101 100 5.7 1202 101 6.8 1302 101 7.3 1403 101 8.8 VS ft 0.0 0.0 0.2 0.1 0.0. -0.4 -0.4 0.9 4.1 9.5 16.0 1000.0 16.9 19.9 1100.0 26.1 19.3 1200.0 37.0 21.6 1300.0 49.4 25.8 1400.0 63.4 1505 101 10.7 27.1 1500.0 1607 102 13.5 30.7 1600.0 1710 103 15.4 28.5 1700.0 1814 104 16.6 25.3 1800.0 1919 105 18.3 24.9 1900.0 2025 106 20.1 21.8 2000.0 2132 107 22.3 23.9 2100.0 2241 109 23.5 24.7 2200.0 2351 110 25.2 23.4 2300.0 2462 111 27.2 26.4 2400.0 2575 113 27.6 2688 113 28.4 2803 115 31.2 2922 119 34.2 3044 123 36.4 80.5 101.5 127.2 155.9 187.4 222.0 260.9 303.1 348.2 397.3 29.9 2500.0 449.0 31.2 2600.0 501.4 28.3 2700.0 558.0 25.8 2800.0 621.5 22.8 2900.0 692.7 3171 126 38.8 3301 130 40.7 3434 134 42.3 3571 137 44.5 3716 145 47.8 3868 151 49.1 19.4 4020 152 48.4 20.0 4170 150 48.5 21.4 4322 152 48.8, .- 21 4473 151 48.6 ~ 22 21.6 3000.0 20.5 3100.0 20.0 3200.0 18.9 3300.0 19.0 3400.0 3500.0 3600.0 3700.0 .0 .0 .9 38OO .5_. ~! .... 3900 · 769.5 852.5 941.2 1035.0 1139.6 1252.9 1367.2 1479.4 1593.6 1707.3 LAT DEP D ' LEG ft ft °/100 0.0 0.0 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.2 0.1 -0.0 0.2 0.2 -0.4 0.1 0.2 -0.5 0.1 0.8 0.9 0.3 0.9 4.2 0.8 1.2 9.5 1.9 1.3 16.8 3.9 1.1 25.5 6.8 1.0 35.8 10.5 1.0 47.4 14.8 0.6 60.2 20.4 1.6 75.5 28.1 1.9 94.0 38.3 2.8 116.5 51.1 1.9 142.2 63.9 1.4 170.7 77.4 1.6 202.6 91.0 2.0 238.4 106.0 2.2 276.9 123.5 1.1 318.0 141.9 1.6 362.6 162.7 2.1 408.2 187.3 1.5 453.8 214.4 0.9 503.2 242.7 2.7 -559.9 271.7 2.8 624.9 300.7 2.3 696.1 773.6 856.9 945.4 1044.6 1151.8 1259.6 1364.8 1470.8 1576.0 329.5 2.0 359.5 1.6 390.2 1.2 421.6 1.7 455.7 2.3 493.1' 0.9 531:7 0.6 · 571.0 ' 0.7 ., 613.3 ~.~'~ 0.4 ' 656.6 ii 0.3 ~ent ~ 1£1 Name Location TELECO OILFIELD SERVICES~'~ ~ PRUDHOE BAY DRILLING GROUP L4-12 Page 2 of 3 Date OCT. 11, 1991 Filename : 848TAK InterPolated 100 ft of TVD MD ft 4624 4774 4924 5075 5229 5386 5546 5708 5870 6034 6198 6360 6520 6678 6837 6998 7171 7350 7527 7697 7863 8028 8193 8352 8507 8662 8816 8972 9128 9281 9435 9594 9758 9926 10093 10260 10426 10591 10754 _~.i"10916 · C\L INC DIR TVD ft deg deg ft 151 48.3 21.7 4000.0 150 48.0 22.9 4100.0 150 48.4 22.6 4200.0 152 49.0 23.8 4300.0 154 49.9 23.6 4400.0 157 161 162 162 164 164 162 160 159 159 161 173 179 177 170 166 164 165 159 155 155 154 156 156 153 155 158 164 168 168 167 166 165 163 162 VS ft 1820.1 1931.8 2043.3 2157.2 2274.1 50.8 23.1 4500.0 2394 52.1 22.1 4600.0 2520 51.6 23.0 4700.0 2647 52.1 22.3 4800.0 2774 52.6 23.5 4900.0 2904 52.5 22.3 5000.0 3034 51.4 21.5 5100.0 3161 51.0 21.5 5200.0 3286 51.4 21.9 5300.0 3409 50.3. 23.1 5400.0 3533 53.2 22.7 5500.0 3659 55.7 24.1 5600.0 3799 56.4 23.5 5700.0 3948 54.7 21.6 5800.0 4094 53.4 20.6 5900.0 4232 52.4 20.8 6000.0 4364 52.8 21.1 6100.0 4494 52.2 21.8 6200.0 4626 50.1 20.1 6300.0 4749 49.9 20.5 6400.0 4868 49.3 21.2 6500.0 50.0 20.0 6600.0 50.4 20.6 6700.0 49.7 21.9 6800.0 49.1 21.2 6900.0 21.8 7000.0 20.9 7100.0 21.6 7200.0 23.2 7300.0 22.0 7400.0 21.9. 7500.0 21.9 7600.0 21.9 7700.0 22.5 .. 7800.0 22.8 7900.0 50.2 51.6 53.2 53.5 53.3 53.1 52.7 · 52.4 52.1 51.7 LAT DEP D'LEG ft ft °/100 1680.6 698.9 0.4 1783.9 741.4 0.6 1886.7 784.6 0.3 1991.6 829.0 0.7 2098.5 876.3 0.6 .7 .2 .4 .3 .0 2209.3 924.0 0.6 2325.0 972.8 1.0 2442.3 1021.7 0.6 2559.5 1070.4 0.5 2678.9 1121.2 0.7 .5 .9 .3 .7 .1 2799.3 1171.4 0.6 2917.9 1218.2 0.7 3033.5 1264.1 0.3 3148.6 1308.8 0.3 3262.6 1356.0 0.9 .2 .9 .3 .6 .4 3378.7 1405.3 1.8 3508.1 1460.5 1.6 3643.6 1521.0 0.5 3778.9 1576.9 1.3 3907.4 1626.6 0.9 .3 .8 .6 .7 .2 4030.8 1673.6 0.6 4152.9 1719.8 0.3 4275.3 1768.8 0.5 4390.2 1813.1 1.6 4501.5 1854.3 0.2 4986.3 5103.1 5223.2 5343.1 5458.5 4612.0 1896.1 0.5 4721.5 1937.1 0.7 4834.3 1978.8 0.4 4946.1 2022.0 0.8 5053.7 2064.2 0.5 5576.3 5163.2 5699.2 5277.7 5829.2 5398.7 5963.9 5523.1 6098.4 5647.4 6364.2 . 5894.0 6495.0 ' 6015.4 6624.2' .. 6135.0 6751.6'- 6252.6 , .. 2107.4 0.8 2152.3 1.0 2199.8 1.0 2251.7 0.8 2303.1 0.6 2353.3 2402.4 0.2 2451.1 0.2 2499.9 0.3 2549.1 0.3 C~ient Name Lucation PRUDHOE BAY DRILLING GROUP L4-12 LISBURNE FIELD i Page 3 of 3 Date OCT. 11, 1991 Filename : 848TAK Interpolated 100 ft of TVD MD C\L INC DIR TVD ft ft deg deg ft 11077 161 51.4 23.1 8000.0 · 11237 160 51.2 22.0 8100.0 11396 159 50.8 22.5 8200.0 11552 156 49.7 22.3 8300.0 11709 156 51.3 22.0 8400.0 11878 169 56.3 21.8 8500.0 12073 195 61.5 22.7 8600.0 12301 229 67.3 25.6 8700.0 12499 198 78.0 23.3 8760.6 VS ft 6877.9 7002.8 7126.3 7246.3 7366.6 7503.0 7670.0 7875.4 8063.1 LAT DEP D'LEG ft ft °/100 6368.9 2598.3 0.2 6484.3 2646.1 0.6 6598.7 2692.6 0.4 6709.7 2738.3 0.7 6821.1 2783.7 1.1 6947.8 2834.3 3.0 7102.4 2897.4 2.7 7289.5 2982.4 2.8 7460.7 3059.4 7.2 Origin of Bottom Hole Closure SLOT Bottom Hole Closure 8064 ft 22.3° TELECO OILFIELD SERVICES ALASKA PRUDHOE BAY DRILLING GROUP Well Name Location Date Surveyed Job No. Survey Performed By : L4-12 : LISBURNE FIELD : : : OCT. 11, 1991 : 848TAK : RON GEHRES This survey is correct to the best of my knowledge and is supported by actual field data. ........................ cOMPANY REPRESENTATIVE .:. MEASURED DEPTH NO INTERPOLATION TELECO OILFIELD SERVICES ent : PRUDHOE BAY DRILLING GROUP. 1 Name : L4-12 Location : LISBURNE FIELD ' · · . · · No Interpolation Date OCT. 11, 1991 Filename : 848TAK Plane of Vertical Section : 23.0° Latitude & Departure relate to : SLOT CENTER Vertical Section Originates at : SLOT CENTER Slot Coordinates : Lat 0.000ft : Dep 0.000ft Directions Referenced To : TRUE NORTH Depth at Drill Floor : 0.00 ft Calculation Method : MINIMUM CURVATURE Magnetic Declination :+30° 0.000'E Platform north : +0° 0' 0'' (T) Grid convergence : +0.0000° TELECO OILFIELD SERVICES C~.ent : PRUDHOE BAY DRILLING GROUP ~ Iol Name : L4-i2 Location : LISBURNE FIELD · · No Interpolation Page 1 of 4 Date OCT. 11, 1991 Filename : 848TAK MD C\L INC DIR TVD ft ft deg deg ft 0 0 0.0 0.0 0.0 250 250 0.1 49.7 250.0 421 171 0.2 197.0 421.0 511 90 0.4 199.5 511.0 602 91 0.4 22.6 602.0 VS ft 0.0 0.2 0.0 -0.4 -0.4 ~T DEP D'LEG ft ft °/100 0.0 0.0 0.0 0.1 0.2 0.0 -0.0 0.2 0.2 -0.5 0.0 O.2 -0.5 0.1 0.9 697 95 1.2 6.4 697.0 787 90 2.3 7.5 786.9 873 86 3.4 13.8 872.8 963 90 4.5 14.5 962.6 1053 90 5.2 18.0 1052.3 0.8 3.5 7.7 13.8 21.4 0.8 0.3 0.9 3.5 0.6 1.2 7.7 1.5 1.3 13.7 3.0 1.2 21.0 5.1 0.8 1144 91 6.2 21.6 1142.8 1234 90 7.1 18.0 1232.2 1328 94 7.4 23.0 1325.5 1421 93 9.1 26.5 1417.5 1515 94 10.9 27.2 1510.1 1608 93 13.5 30.7 1601.0 1701 93 15.3 28.9 1691.1 1793 92 16.2 25.1 1779.6 1887 94 18.0 26.1 1869.5 1980 93 18.8 22.6 1957.7 30.4 40.8 52.6 65.9 82.2 101.8 124.7 149.6 177.2 206.6 29.5 8.2 1.2 39.3 11.7 1.1 50.4 15.9 0.7 62.5 21.5 1.9 77.1 28.9 1.9 94.2 38.5 2.9 114.3 49.9 2.0 136.6 61.2 1.5 161.5 73.2 1.9 188.2 85.3 1.5 2072 92 21.4 20.9 2044.1 2169 97 22.9 25.8 2133.9 2263 94 23.7 24.4 2220.3 2358 95 25.3 23.3 2306.7 2451 93 27.1 26.1 2390.2 238 274 311 351 392 .2 .7 .9 .2 .3 217.6 97.0 2.9 251.1 111.5 2.5 284.8 127.3 1.0 320.8 143.2 1.8 358.1 160.3 2.3 2545 94 27.6 28.9 2473.7 2639 94 27.6 32.1 2557.0 2733 94 29.1 30.4 2639.7 2828 95 31.9 27.5 2721.5 2922 94 34.2 25.8 2800.3 435 478 522 570 621 .3 .5 .6 .6 .7 396~-- 180.3 1.5 433.9 202.4 1.6 472.1 225.5 1.8 -514.3 248.8 3.3 560.1 271.8 2.6 3017 95 36.0 23.3 2878.0 3110 93 37.4 21.6 2952.6 3203 93 39.5 21.6 3025.4 3297 94 40.7 20.5 3097.3 3390 93 41.8 20.2 3167.3 3483 93 42.8 19.8 3236.1 3578 95 44.6 18.8 3304.7 3673 95 46.9 19.1 3371.0 3791 118 49.4 18.8 3449.7 5964 173 48.8 20.2 3563.0 676 731 789 85O 911 974 1039 1107 1195 1325 .3 .9 .7 .2 .5 .0 .5 .3 .0 .5 609.8 294.5 2.4 661.1 315.7 1.9 714.9 336.9 2.3 771.4 358.7 1.5 828.9 380.0 1.2 887.7 401.4 1.1 949.7 423.1 2.0 1014.0 445.2 2.4 1097.1 473.7 2.1 1220.4 51~.4 0.7 · . .. TELECO OILFIELD SERVICES f~Sient : PRUDHOE BAY DRILLING GROUP I11 Name : L4-12 Location : LISBURNE FIELD : : No Interpolation MD C~L INC DIR TVD ft ft deg deg ft 4057 93 48.1 19.8 3624.7 4150 93 48.3 21.2 3686.7 4242 92 49.0 21.9 3747.5 4335 93 48.8 21.9 3808.6 4429 94 48.6 23.0 3870.6 VS ft 1395.0 1464.3 1533.4 1603.4 1674.0 Page 2 Date OCT. Filename of 4 11, 1991 : 848TAK LAT ft 1285.8 1350.7 1415.0 1480.0 1545.3 DEP D' LEG ft °/100 541.2 0.8 565.5 1.1 590.8 1.0 617.0 0.2 643.9 0.9 4523 94 48.5 21.9 3932.9 4618 95 48.3 21.6 3995.9 4712 94 48.2 22.6 4058.5 4807 95 47.9 23.0 4122.0 4900 93 48.2 22.6 4184.2 1744 1815 1885 1956 2025 .5 .5 .6 .3 .5 1610.4 1676.4 1741.3 1806.5 1870.2 670.8 0.9 697.2 0.3 723.5 0.8 750.9 0.4 777.7 0.5 4994 94 48.8 22.6 4246.5 5087 93 49.0 24.0 4307.6 5180 93 49.6 24.0 4368.3 5274 94 50.2 23.3 4428.8 5368 94 50.6 23.0 4488.7 5463 95 51.5 23.3 4548.5 5558 95 52.2 21.9 4607.1 5652 94 51.7 23.0 4665.1 5746 94 51.5 23.0 4723.5 5839 93 51.9 21.9 4781.1 2095 2165 2236 2308 2380 2454 2529 2603 2677 2750 .9 .9 .4 .3 .7 .6 .3 .3 .0 .0 1935.2 1999.6 2064.0 2129.9 2196.5 2264.4 2333.4 2401.8 2469.6 2537.0 804.8 0.6 832.5 1.2 861.2 0.6 890.0 0.9 918.5 0.5 947.5 1.0 976.2 1.4 1004.5 1.1 1033.3 0.2 1061.2 1.0 5928 89 52.4 23.0 4835.7 6021 93 52.6 23.7 4892.3 6114 93 52.5 22.3 4948.9 6202 88 52.5 22.3 5002.5 6301 99 51.7 20.9 5063.3 2820 2894 2967 3037 3115 .3 .0 .9 .7 .8 2602.0 2669.7 2737.7 2802.3 2874.9 1088.0 1.1 1117.2 0.6 1146.1 1.2 1172.6 0.0 1201.3 1.4 6394 93 51.3 21.9 5121.2 6490 96 51.1 21.9 5181.3 6587 97 50.7 20.5 5242.5 6680 93 51.4 21.9 5301.0 6774 94 51.2 22.6 5359.7 3188 3263 3338 3410 3484 .5 .3 .6 .9 .2 2942 ~-- 3012.1 3082.3 3149.7 3217.6 1227.9 0.9 1255.8 0.2 1283.0 1.2 1309.2 1.4 1337.0 0.6 6868 94 49.9 23.3 5419.5 6960 92 52.4 23.0 5477.2 7055 95 54.4 22.3 5533.8 7149 94 55.7 24.0 5587.7 7245 96 55.9 24.4 5641.6 7339 94 56.5 23.7 5693.9 7432 93 55.8 22.3 5745.7 7526 94 54.7 21.6 5799.3 7620 94 54.0 21.2 5854.1 7715 95 53.3 20.5 5910.4 3556.8 3628.4 3704.7 3781.7 3861.1 3939.2 4016.5 4093.7 4170.0 4246.5 3284.4 3350.3 3420.7 3491.5 3563.9 3635.3 3706.4 3778.0 3849.1 3920.6 1365.3 1.5 1393.4 2.7 1422.8 2.2 1453.1 2.0 1485.6 0.4 1517.5 0.9 1547.6 1.5 1576.5 1.3 1604.4 0.8 1631.6 0.9 '~!~'-"=~ ''~'~" ~ TELEco OILFIELD SERVICES OJ'~i, ent ' : PRUDHOE BAY DRILLING GROUP ~ .1 Name : L4-12 Location : LISBUR~E FIELD . No Interpolation Page 3 of 4 Date OCT. 11, 1991 Filename : 848TAK MD C~L ft ft 7810 95 7903 93 7997 94 8090 93 8185 95 INC deg 52.6 52.3 52.6 53.3 52.4 DIR deg 21.2 20.5 20.5 22.3 21.9 TVD ft 5967.6 6024.3' 6081.6 6137.6 6195.0 VS ft 4322.3 4395.9 4470.4 4544.6 4620.3 LAT ft 3991.5 4060.4 4130.2 4199.3 4269.4 DEP D'LEG ft 1658.6 1684.9 1710.9 1738.0 1766.5 '/lOO 0.9 0.7 0.3 1.7 1.0 8279 94 8374 95 8468 94 8562 94 8655 93 50.6 49.9 49.7 50.1 49.3 21.2 19.8 20.5 20.5 21.2 6253.5 6314.3 6374.9 6435.5 6495.6 4693.8 4766.8 4838.5 4910.4 4981.2 4337.8 4406.3 4473.7 4541.0 4607.3 1793.6 1819.1 1843.9 1869.0 1894.3 2.0 1.4 0.6 0.4 1.0 8750 95 8844 94 8938 94 9032 94 9126 94 9218 92 9311 93 9406 95 9500 94 9593 93 49.2 50.3 50.4 50.4 49.7 · 48.7 49.3 50.0 50.8 51.6 20.5 19.8 20.5 20.9 21.9 21.2 21.2 21.9 21.6 20.9 6557.7 6618.4 6678.4 6738.3 6798.7 6858.8 6919.8 6981.3 7041.2 7099.5 5053.2 5124.8 5197.1 5269.5 5341.5 5411.1 5481.3 5553.7 5626.1 5698.5 4674.5 4741.9 4809.8 4877.6 4944.7 5009.5 5074.9 5142.2 5209.5 5277.1 1919.9 1944.6 1969.5 1995.1 2021.4 2047.0 2072.4 2099.0 2125.8 2152.1 0.6 1.3 0.6 0.3 1.1 1.2 0.6 0.9 0.9 1.0 9687 94 9781 94 9879 98 9973 94 10067 94 52.5 53.4 53.6 53.4 53.3 21.6 21.6 23.7 22.6 21.9 7157 7213 7272 7328 7384 .3 .9 .2 .1 .2 5772.6 5847.6 5926.4 6001.9 6077.3 5346.1 5415.9 5488.6 5558.1 5627.9 2179.0 2206.6 2236.9 2266.6 2295.2 1.1 1.0 1.7 1.0 0.6 10158 91 10253 95 10347 94 10440 93 10536 96 53.2 53.1 52.9 52.7 52.6 22.3 21.9 21.6 21.9 21.9 7438 7495 7552 7608 7666 .7 .7 .2 .5 .7 6150.2 6226.3 6301.3 6375.4 6451.7 5695~-~-- 5765.8 5835.6 5904.4 5975.2 2322.6 2351.2 2379.0 2406.5 2434.9 0.4 0.4 0.3 0.3 0.1 10627 91 10722 95 10816 94 11009 193 11099 90 11193 94 11286 93 11380 94 11475 95 11571 96 . . . 52.3 52.2 52.0 51.5 51.4 51.3 51.1 50.9 50.1 49.6 21.9 22.6 22.3 23.3 23.0 22.3 21.6 22.6 22.3 22.3 7722.2 7780.3 7838.1 7957.6 8013.6 8072.4 8130.6 8189.8 8250.2 . 8312.1 · 6523.8 6598.9 6673.1 6824.7 6895.0 7040.9 7114.0 7187.3 7260.6 6042.1 6111.6 6180.2 6319.9 6384.6 6452.4 6519.6 6587.3 6655.0 6722.9 2461.9 2490.3 2518.6 2577.4 2605.0 2633.3 2'660.4 2687.9 2715.9 2743.7 0.3 0.6 0.3 0.5 0.3 0.6 0.6 0.9 0.9 ' 0.5 ~ient . ' '~£1 Name . ' Location . · s vxc s L4-12 LISBURNE FIELD · . No Interpolation MD C\L INC DIR ft ft deg deg 11661 90 50.0 22.3 11758 97 52.7 21.6 11851 93 55.5 21.6 11944 93 58.4 22.3 12043 99 61.0 21.9 TVD ft 8370.2 8430.8' 8485.3 8536.0 8586.0 VS ft 7329.4 7405.1 7480.4 7558.3 7643.8 12133 90 62.6 24.4 12224 91 64.7 24.7 12320 96 67.9 25.8 12408 88 72.4 23.7 12499 91 78.0 23.3 8628. 8668. 8707. 8737. 8760. 7723.1 7804.6 7892.4 7975.1 8063.1 Page 4 of 4 Date OCT. 11, 1991 Filename : 848TAK LAT DEP D'LEG ft ft °/100 6786.5 2769.8 0.4 6856.8 2798.1 2.8 6926.8 2825.8 3.0 6999.1 2855.0 3.2 7078.3 2887.1 2.6 7151.2 2918.3 3.0 7225.4 2952.2 2.3 7304.9 2989.7 3.5 7380.0 3024.3 5.6 7460.7 3059.4 6.2 Origin of Bottom Hole Closure SLOT Bottom Hole Closure 8064 ft 22.3° TELECO OILFIELD SERVICES ALASKA PRUDHOE BAY DRILLING GROUP Well Name Location Date Surveyed Job No. Survey Performed By : L4-12 : LISBURNE FIELD : : : OCT. 11, 1991 : 848TAK : RON GEHRES This survey is correct to the best of my knowledge and is supported by actual field data. ........................... cOMPANY REPRESENTATIVE ... MEASURED DEPTH ' ' D 100 INTERPOLATE ient : PRUDHOE BAY DRILLING GROUP · 1 Name : L4-12 Location : LISBURNE FIELD · ~ TELECO oILFiELD'SERvICES Date OCT. 11, 1991 Filename : 848TAK Interpolated 100 ft of MD Plane of Vertical Section : 23.0° Latitude & Departure relate to : SLOT CENTER Vertical Section Originates at : SLOT CENTER Slot Coordinates : Lat 0.000ft : Dep 0.000ft Directions Referenced To : TRUE NORTH Depth at Drill Floor : 0.00 ft Calculation Method : MINIMUM CURVATURE Magnetic Declination :+30° 0.000'E Platform north : +0° 0' 0'' (T) Grid convergence : +0.0000° i~ient ~1 Name Location · PRUDHOE BAY DRILLING GROUP L4-12 · LISBURNE FIELD Page 1 of 4 Date OCT. 11, 1991 Filename : 848TAK . Interpolated 100 ft of MD MD ft 0 100 200 300 400 5OO 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000 3100 3200 3300 3400 C~L INC DIR TVD VS ft deg deg ft ft 0 0.0 0.0 0.0 0.0 100 0.0 19.9 100.0' 0.0 100 0.1 39.8 200.0 0.2 100 0.1 92.8 300.0 0.1 100 0.2 178.9 400.0 0.0 100 0.4 199.2 500.0 -0.4 100 0.4 26.5 600.0 -0.4 100 1.2 6.4 700.0 0.9 100 2.5 8.5 799.9 4.1 100 3.7 14.0 899.8 9.5 100 4.8 15.9 999.5 16.9 100 5.7 19.9 1099.1 26.0 100 6.8 19.4 1198.5 36.8 100 .7.3 21.5 1297.7 49.1 100 8.7 ~ 25.7 1396.7 62.9 100 10.6 27.1 1495.3 79.6 100 13.3 30.4 1593.2 100.1 100 15.3 28.9 1690.1 124.5 100 16.3 25.2 1786.3 151.7 100 18.1 25.6 1881.8 181.3 100 19.4 22.2 1976.5 213.4 100 21.8 22.3 2070.0 248.7 100 23.2 25.3 2162.4 287.0 100 24.3 24.0 2253.9 327.2 100 26.1 24.6 2344.4 369.8 100 27.4 27.6 2433.7 414.7 100 27.6 30.8 2522.4 460.6 100 28.6 31.0 2610.6 507.1 100 31.1 28.4 2697.4 556.4 100 33.7 26.2 2781.9 609.8 100 35.7 23.7 2864.1 666.6 100 37.2 21.8 2944.6 725.9 100 39.4 21.6 3023.1 787.8 100 40.7 20.5 3099.6 852.2 100 41.9 20.2 3174.7 918.2 3500 100 43.1 3600 100 45.1 3700 100 47.5 3800 100 49.4 3900 100 49.0 19.6 3248.3 . 18.9 3320.1 19.0 3389.0 18.9 ·3455.6 19.7 '~" 3521' 1 . .· 985.7 1055.2 1127.4 1201.8 1277.3 LAT DEP D ' LEG ft ft °/100 0.0 0.0 0.0 0.1 0.1 0.0 0.1 0.1 0.0 0.1 0.2 0.1 -0.0 0.2 O.2 -0.4 0.1 0.2 -0.5 0.1 0.8 0.9 0.3 0.9 4.2 0.8 1.2 9.5 1.9 1.3 16.7 3.9 1.1 25.4 6.7 1.0 35.6 10.4 1.0 47.1 14.6 0.6 59.8 20.2 1.5 74.7 27.7 1.9 92.7 37.6 2.7 114.1 49.8 2.0 138.4 62.1 1.5 165.2 74.9 1.8 194.6 87.8 1.7 227.3 101.2 2.5 262.2 116.7 1.8 298.8 133.4 1.3 337.7 150.9 1.8 378J~- 170.7 1.8 418.3 193.2 1.5 458.7 217.4 1.0 -501.8 242.0 2.8 549.4 266.4 2.8 600.9 290.4 2.5 655.6 313.4 2.0 713.2 336.3 2.2 773.3 359.4 1.5 835.2 382.3 1.2 ~ 898.8 405.3 1.3 ii · 964.6 428.2 2.1 · 1033.0 451.7 ' 2.3 1103.6 476.0 1.9 1174.8 501.2 '- 0.7 _ · ~ient · 11 Name Location TELECO OILFIELD SERVICES PRUDHOE BAY DRILLING GROUP L4-12 LISBURNE FIELD Page 2 of 4 Date OCT. 11, 1991 Filename : 848TAK Interpolated 100 ft of MD MD ft 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5OO0 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000 7100 7200 7300 7400 7500 7600 7700 7800 7900 C~L INC DIR TVD VS ft deg deg ft ft 100 48.5 20.0 3586.9 i352.4 · 100 48.2 20.4 3653.4 1427.1 100 48.7 21.6 3719.7 1501.8 100 48.9 21.9 3785.6 1577.1 100 48.7 22.7 3851.5 1652.3 100 48.5 22.2 3917.6 1727.2 100 48.3 21.7 3984.0 1802.1 100 48.2 22.5 4050.5 1876.7 100 47.9 23.0 4117.4 1951.1 100 48.2 22.6 4184.2 2025.5 100 48.8 22.7 4250.4 2100.4 100 49.1 24.0 4316.1 2175.8 100 49.7 23.9 4381.2 2251.7 100 50.3 23.2 4445.4 2328.4 100 50.9 23.1 4508.9 2405.6 100 51.8 22.8 4571.3 2483.7 100 52.0 22.4 4633.0 2562.4 100 51.6 23.0 4694.9 2641.0 100 51.7 22.4 4756.9 2719.4 100 52.2 22.7 4818.5 2798.2 100 52.6 23.5 4879.6 2877.4 100 52.5 22.5 4940.4 2956.8 100 52.5 22.3 5001.2 3036.1 100 51.7 20.9 5062.7 3115.0 100 51.3 21.9 5124.9 3193.2 100 51.1 21.8 5187.6 3271.1 100 50.8 20.7 5250.7 3348.7 100 51.4 22.0 5313.5 3426.5 100 50.8 22.8 5376.3 3504.3 100 50.8 23.2 5439.5 3581.7 100 53.2 22.7 5501.0 3660.5 100 55.0 23.1 5559.6 3741.6 100 55.8 24.2 5616.3 3823.9 100 56.3 24.0 5672.2 3906.8 100 56.0 22.8 5727.9 3989.9 100 55.0 21.8 100 54.1 21.3 100 53.4 20.6 100 52.7 21.1 100 52.3 20.5 5784.5 4072.3 5842.4 · 4153.8 5901.5 4234.4 5961.6" 4314.3~ 6022.5 .i~ 4393.6 LAT DEP D'LEG ft ft °/100 1245.7 526.6 0.6 1315.8 552.4 0.5 1385.6 579.2 1.0 1455.5 607.1 0.3 1525.1 635.6 0.6 1594.4 664.3 0.4 1663.9 692.2 0.4 1733.0 720.2 0.6 1801.7 748.9 0.5 1870.2 777.7 0.4 1939.4 806.6 0.6 2008.6 836.5 1.0 2078.0 867.3 0.7 2148.3 897.9 0.8 2219.3 928.3 0.6 2291.3 958.7 0.9 2363.9 988.9 0.4 2436.4 1019.2 0.6 2508.7 1049.5 0.5 2581.5 1079.6 0.6 2654.4 1110.6 0.8 2727.4 1141.8 0.8 2800.8 1172.0 0.2 2874.2 1201.1 1.4 2947.0 1229.6 0.9 3019.3 1258.6 0.3 3091.7 1286.7 0.9 3164.1 1315.1 1.2 3236.1 1344.8 0.8 3307.3 1375.1 0.3 3379.9 1405.8 2.5 3454.6 1437.3 1.8 3530.0 1470.4 1.2 3605.7 1504.3 0.5 3681.9 1537.3 1.0 3758.2 1568.5 1.3 3834.0 1598.5 1.0 3909.3 1627.3 0.9 3984.0 1655.8 0.8 4058.1 1684.0 0.6' ~ent ~il Name Location TELECO OILFIELD SERVICES PRUDHOE BAY DRILLING GROUP L4-12 LISBURNE FIELD Page 3 of 4 Date OCT. 11, 1991 Filename : 848TAK Interpolated 100 ft of MD MD C~L INC DIR TVD VS LAT DEP D'LEG ft ft deg deg ft ft ft ft °/100 8000 100 52.6 20.6 6083.4 4472.8 4132.4 1711.8 0.3 8100 100 53.2 22.3 6143.7 4552.6 4206.7 1741.0 1.5 8200 100 52.1 21.8 6204.3 4632.0 4280.3 1770.8 1.2 8300 100 50.4 20.9 6267.0 4710.0 4353.0 1799.2 1.8 8400 100 49.8 20.0 6331.1 4786.6 4424.9 1826.0 0.9 850O 8600 8700 8800 8900 9000 9100 9200 9300 9400 9500 9600 9700 9800 9900 10000 10100 10200 10300 10400 10500 10600 10700 10800 10900 11000 11100 11200 11300 11400 i11500 11600 11700 11800 11900 100 49.8 20.5 6395.6 4863.0 100 49.8 20.8 6460.1 4939.3 100 49.3 20.9 6525.0 5015.3 100 49.8 20.1 6590.0 5091.3 100 50.4 20.2 6654.1 5167.9 100 50.4 20.8 6717.9 5244.8 100 49.9 21.6 6782.0 5321.6 100 48.9 21.3 6847.0 5397.5 100 49.2 21.2 6912.6 5473.0 100 50.0 21.9 6977.4 5549.1 100 50.8 21.6 7041.2 5626.1 100 51.7 21.0 7103.8 5704.0 100 52.6 21.6 7165.1 5783.0 100 53.4 22.0 7225.2 5862.9 100 53.6 23.5 7284.7 5943.3 100 53.4 22.4 7344.2 6023.6 100 53.3 22.0 7404.0 6103.8 100 53.2 22.1 7463.9 6183.9 100 53.0 21.8 7524.0 6263.8 100 52.8 21.8 7584.3 6343.5 100 52.6 21.9 7644.9 6423.1 100 52.4 21.9 7705.7 6502.4 100 52.2 22.4 7766.9 6581.5 100 52.0 22.4 7828.2 6660.5 100 51.8 22.7 7890.1 6739.1 100 51.5 23.3 7952.0 6817.6 100 51.4 23.0 8014.3 6895.8 100 51.3 22.2 8076.7 6973.9 100 51.1 21.7 8139.4 7051.8 100 50.7 22.5 8202.5 7129.4 100 50.0 22.3 . 8266.3 100 49.7 22.3 8330.8 100 51.1 22.0 8394.6 100 54.0 21.6 8455.4 100 57.0 22.0 8512.0 7206.4 7282.8 7359.8 7439.1 7521.5 4496.6 1852.4 0.4 4568.1 1879.4 0.2 4639.1 1906.4 0.5 4710.4 1933.0 0.8 4782.4 1959.5 0.6 4854.5 1986.4 0.4 4926.1 2014.2 0.8 4996.8 2042.0 1.0 5067.2 2069.4 0.3 5138.0 2097.3 0.9 5209.5 2125.8 0.9 5282.2 2154.1 1.0 5355.8 2182.8 . 1.1 5430.0 2212.5 0.9 5504.1 2243.6 1.2 5578.1 2274.8 0.9 5652.4 2305.1 0.3 5726.6 2335.3 0.1 5800.7 2365.1 0.3 5874.8 2394.7 0.2 5948.6 2424.3 0.2 6022.3 2453.9 0.2 6095.5 2483.7 0.5 6168.5 2513.8 0.2 6241.0 2544.2 0.4 6313.4 2574.6 0.5 6385.4 2605.3 0.2 6457.5 2635.3 0.6 6529.7 2664.5 0.4 6601.6 2693.8 0.7 6672.7 2723.1 0.8 6743.4 2752.1 0.2 6814.8 2781.2 1.4 6888.4 2810.6 2.9 6964.9 2841.2 3.1 · ~ent ~1 Name Location TELECO OILFIELD SERVICES PRUDHOE BAY DRILLING GROUP L4-12 LISBURNE FIELD Page 4 of 4 Date OCT. 11, 1991 Filename : 848TAK Interpolated 100 ft of MD MD C\L INC DIR TVD ft ft deg deg ft 12000 100 59.9 22.1 8564.3 12100 100 62.0 23.5 8612.9 12200 100 64.1 24.6 8658.2 12300 100 67.2 25.6 8699.4 12400 100 72.0 23.9 8734.6 12499 99 78.0 23.3 8760.6 VS LAT DEP D'LEG ft ft ft °/100 7606.7 7043.9 2873.2 2.8 7694.0 7124.5 2906.9 2.5 7783.1 7205.8 2943.3 2.4 7874.1 7288.3 2981.9 3.2 7967.6 7373.2 3021.2 5.0 8063.1 7460.7 3059.4 11.0 Origin of Bottom Hole Closure SLOT Bottom Hole Closure 8064 ft 22.3° VI. MUD INFORMATION VI. MUD INFORMATION= RUN DEPTH WEIGHT PVIS YIELD PT GEL FILT CHLOR SAND SOLID CAKE pH/ELEC ft ppg cp lb/100ft 10s/10m cc mg/L % % STAB 10 10171 9.6 10 9 2/26 4.5 1350 tr 8.0 2 9.9 Convert mud system from dispersed to oil base 11 11260 9.5 18 10 13/19 4.0 44000 n/a 9.0 2 565 12 11775 9.8 20 10 18/25 4.0 44000 n/a 9.5 2 580 13 12578 10.3 20 15 21/30 3.8 44000 n/a 9.3 2 550 ADDITIONAL MUD INFORMATION RUN Rm TEMP Rmf Rmc Ohm/M Deg F Ohm/M Ohm/M BHCTemp Rm (cor) Deg/F Ohm/M 10 1.65 70 1.50 1.70 120 Convert mud system from dispersed to oil base 11 100 n/a n/a n/a 116 12 100 n/a n/a n/a 138 13 100 n/a n/a n/a 128 0.98 100 100 100 VII. BOTTOM HOLE ASSEMBLIES 'VII. BOTTOM HOLE ASSEMBLIES SECTION NAME (1) BIT (2) CROSS OVER ( 3 ) MUD MOTOR (4) BENT SUB (5) BIT SUB (6) NM STAB (7) NM LEAD COLLAR (8) NM LEAD COLLAR (9) NM STAB (10) CROSS OVER (11) TELECO DIR (12) NM STAB (13) MONEL (14) MONEL (15) NM STAB (16) MONEL (17) JARS (18) 36 HWDP BHA #1: 500'-1503 ' SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft 1.50 16.000 1.50 2.09 9.000 2.875 3.59 26.72 9.625 30.31 1.20 9.625 2.313 31.51 3.79 8.000 2.875 35.30 5.74 8.000 3.000 41.04 9.20 7.625 2.875 50.24 14.20 8.000 2.875 64.44 5.80 8.000 3.000 70.24 1.82 8.000 2.875 72.06 31.14 8.125 103.20 4.85 8.000 2.875 108.05 28.90 7.875 2.812 136.95 29.81 7.938 2.812 166.76 4.62 8.000 3.000 171.38 29.40 8.000 2.812 200.78 34.79 7.750 2.750 235.57 1085.04 6.375 3.000 1320.61 SPECIAL BHA ITEMS: (1) Bit #:2 (3) Mud Motor (6) Stab (9) Stab (11) MWD (12) Stab (15) Stab Bit Type:Smith Flow Area:.528 Dynadrill F-2000S With 2 Degree Bent Sub # Blades:3 Fish Neck:2.30 Blade OD:16.00 # Blades:3 Fish Neck:2.25 Blade OD:16.00 Serial #:2220-40 Type:4xD-TF1 # Blades:3 Fish Neck:l.90 Blade OD:16.00 # Blades:3 Fish Neck:l.45 Blade OD:16.00 BHA #2: 1503'-2533' SECTION NAME SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft (1) BIT (2) CROSS OVER ( 3 ) MUD MOTOR (4) BENT SUB (5) BIT SUB (6) NM STAB (7) NM LEAD COLLAR ( 8 ) NM LEAD COLLAR (9) NM STAB (10) CROSS OVER (11) TELECO DIR (12) NM STAB (13) MONEL (14) MONEL (15) NM STAB (16) MONEL (17) JARS (18) 36 HWDP 1.50 16.000 1.50 2.09 9.000 2.875 3.59 26.72 9.625 30.31 1.10 9.625 2.313 31.41 3.79 8.000 2.875 35.20 5.74 8.000 3.000 40.94 9.20 7.625 2.875 50.14 14.20 8.000 2.875 64.34 5.80 8.000 3.000 70.14 1.82 8.000 2.875 71.96 31.14 8.125 103.10 4.85 8.000 2.875 107.95 28.90 7.875 2.812 136.85 29.81 7.938 2.812 166.66 4.62 8.000 3.000 171.28 29.40 8.000 2.812 200.68 34.79 7.750 2.750 235.47 1085.04 6.375 3.000 1320.51 SPECIAL BHA ITEMS: (1) Bit #:3 (3) Mud Motor ( 6 ) Stab ( 9 ) Stab (11) MWD (12) Stab (15) Stab Bit Type:Reed Flow Area:.528 Dynadrill F-2000S With 2 1/2 Degree Bent Sub # Blades:3 Fish Neck:2.30 Blade OD:16.00 # Blades:3 Fish Neck:2.25 Blade OD:16.00 Serial #:2220-40 Type:4xD-TF1 # Blades:3 Fish Neck:l.90 Blade OD:16.00 # Blades:3 Fish Neck:l.45 Blade OD:16.00 SECTION NAME (1) BIT (2) CROSS OVER ( 3 ) MUD MOTOR (4) XO FLOAT SUB (5) NM LEAD COLLAR (6) NM STAB (7) NM LEAD COLLAR (8) NM STAB (9) CROSS OVER (10) TELECO DIR (11) NM STAB (12) MONEL (13) MONEL (14) NM STAB (15) MONEL (16) JARS (17) 36 HWDP SPECIAL BHA ITEMS: (1) Bit #:4 (3) Mud Motor (6) Stab (8) Stab (10) MWD (11) Stab (14) Stab BHA #3: 2533 '-3870' SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft 1.50 16.000 1.50 2.09 9.000 2.875 3.59 26.75 9.625 30.34 1.86 7.875 2.812 32.20 9.20 7.625 2.875 41.40 5.74 8.000 3.000 47.14 14.20 8.000 2.875 61.34 5.80 8.000 3.000 67.14 1.82 8.000 2.875 68.96 31.14 8.125 100.10 4.85 8.000 2.875 104.95 28.90 7.875 2.812 133.85 29.81 7.938 2.812 163.66 4.62 8.000 3.000 168.28 29.40 8.000 2.812 197.68 34.79 7.750 2.750 232.47 1085.04 6.375 3.000 1317.51 Bit Type:Security Flow Area:.528 Dynadrill F-2000S With 1 Degree Bent Housing # Blades:3 Fish Neck:2.30 Blade OD:16.00 # Blades:3 Fish Neck:2.25 Blade OD:16.00 Serial #:2220-40 Type:4xD-TF1 # Blades:3 Fish Neck:l.90 Blade OD:16.00 # Blades:3 Fish Neck:l.45 Blade OD:16.00 SECTION NAME (1) BIT (2) NB RWP ( 3 ) NM LEAD COLLAR ( 4 ) NM STAB (5) NM LEAD COLLAR (6) NM STAB (7) CROSS OVER (8) TELECO DIR ( 9 ) NM STAB (10) MONEL (11) MONEL (12) NM STAB (13) MONEL (14) JARS (15) 36 HWDP BHA #5: 3870 '-4862 ' SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft 1.00 12.250 1.00 9.34 8.000 2.875 10.34 9.20 7.625 2.875 19.54 5.53 8.000 3.000 25.07 14.20 8.000 2.875 39.27 4.28 8.000 3.000 43.55 1.82 8.000 2.875 45.37 31.14 8.125 76.51 5.61 8.000 2.875 82.12 28.90 7.875 2.812 111.02 29.81 7.938 2.812 140.83 5.23 8.000 3.000 146.06 29.40 8.000 2.812 175.46 34.79 7.750 2.750 210.50 1085.04 6.375 3.000 1295.29 SPECIAL BHA ITEMS: (1) Bit #:6 ( 4 ) Stab ( 6 ) Stab (8) MWD ( 9 ) Stab (12) Stab Bit Type:Hughes Flow Area:.371 # Blades:3 Fish Neck:l.90 Blade OD:12.25 # Blades:3 Fish Neck:l.85 Blade OD:12.25 Serial #:2220-40 Type:4xD-TF1 # Blades:3 Fish Neck:l.95 Blade OD:12.25 # Blades:3 Fish Neck:l.80 Blade 0D:12.25 SECTION NAME (1) BIT (2) MUD MOTOR (3) XO FLOAT SUB (4) NM STAB ( 5 ) NM LEAD COLLAR (6) NM LEAD COLLAR (7) NM STAB (8) CROSS OVER (9) TELECO DIR (10) NM STAB (11) MONEL (12) MONEL (13) NM STAB (14) MONEL ( 15 ) JARS (16) 36 HWDP SPECIAL BHA ITEMS: (1) Bit #:6 (2) Mud Motor ( 4 ) Stab ( 7 ) Stab (9) MWD (10) Stab (13) Stab BHA #6: 4862 '-6628 ' SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft 1.00 12.250 1.00 23.88 7.750 24.88 2.61 8.000 2.875 27.49 5.53 8.000 3.000 33.02 9.20 7.625 2.875 42.22 14.20 8.000 2.875 56.42 4.28 8.000 3.000 60.70 1.82 8.000 2.875 62.52 31.14 8.125 93.66 5.61 8.000 2.875 99.27 28.90 7.875 2.812 128.17 29.81 7.938 2.812 157.98 5.23 8.000 3.000 163.21 29.40 8.000 2.812 192.61 34.79 7.750 2.750 227.40 1085.04 6.375 3.000 1312.44 Bit Type:Smith Flow Area:.561 DD Flex-Pak With 3/4 Degree Bent Housing # Blades:3 Fish Neck:l.90 Blade OD:12.25 # Blades:3 Fish Neck:l.85 Blade OD:12.25 Serial #:2220-40 Type:4xD-TF1 # Blades:3 Fish Neck:l.95 Blade OD:12.125 # Blades:3 Fish Neck:l.80 Blade OD:12.188 BHA #7: SECTION SECTION NAME LENGTH ft (1) BIT 1.00 (2) MUD MOTOR 23.83 (3) XO FLOAT SUB 2.61 (4) NM LEAD COLLAR 9.20 (5) NM STAB 5.53 (6) NM LEAD COLLAR 14.20 (7) NM STAB 4.28 (8) CROSS OVER 1.82 (9) TELECO DIR 31.14 (10) NM STAB 5.61 (11) MONEL 28.90 (12) MONEL 29.81 (13) NM STAB 5.23 (14) MONEL 29.40 (15) JARS 34.79 (16) 36 HWDP 1085.04 6628'-7988' SECTION SECTION CUMULATIVE OD ID LENGTH in in ft 12.250 1.00 7.750 24.83 8.000 2.875 27.44 7.625 2.875 36.64 8.000 3.000 42.17 8.000 2.875 56.37 8.000 3.000 60.65 8.000 2.875 62.47 8.125 93.61 8.000 2.875 99.22 7.875 2.812 128.12 7.938 2.812 157.93 8.000 3.000 163.16 8.000 2.812 192.56 7.750 2.750 227.35 6.375 3.000 1312.39 SPECIAL BHA ITEMS: (1) Bit #:7 (2) Mud Motor ( 5 ) Stab (7) Stab (9) MWD (10) Stab (13) Stab Bit Type:Security Flow Area:.561 DD Flex-Pak With 3/4 Degree Bent Housing # Blades:3 Fish Neck:l.90 Blade OD:12.25 # Blades:3 Fish Neck:l.85 Blade OD:12.25 Serial #:2220-40 Type:4xD-TF1 # Blades:3 Fish Neck:l.95 Blade OD:12.125 # Blades:3 Fish Neck:l.80 Blade OD:12.188 BHA #8: SECTION SECTION NAME LENGTH ft (1) BIT 1.00 ( 2 ) MUD MOTOR 23.83 (3) XO FLOAT SUB 2.61 (4) NM STAB 4.28 (5) NM LEAD COLLAR 9.20 (6) NM STAB 5.53 (7) NM LEAD COLLAR 14.20 (8) CROSS OVER 1.82 (9) TELECO DIR 31.14 (10) NM STAB 5.61 (11) MONEL 28.90 (12) MONEL 29.81 (13) NM STAB 5.23 (14) MONEL 29.40 (15) JARS 34.79 (16) 36 HWDP 1085.04 7988'-9219' SECTION SECTION CUMULATIVE OD ID LENGTH in in ft 12.250 1.00 7.750 24.83 8.000 2.875 27.44 8.000 3.000 31.72 7.625 2.875 40.92 8.000 3.000 46.45 8.000 2.875 60.65 8.000 2.875 62.47 8.125 93.61 8.000 2.875 99.22 7.875 2.812 128.12 7.938 2.812 157.93 8.000 3.000 163.16 8.000 2.812 192.56 7.750 2.750 227.35 6.375 3.000 1312.39 S (1) Bit #:8 (2) Mud Motor ( 4 ) Stab ( 6 ) Stab (9) MWD (10) Stab (13) Stab PECIAL BHA ITEMS: Bit Type:Hughes Flow Area:.628 DD Flex-Pak With 3/4 Degree Bent Housing # Blades:3 Fish Neck:l.85 Blade OD:12.188 # Blades:3 Fish Neck:l.90 Blade OD:12.25 Serial #:2220-40 Type:4xD-TF1 # Blades:3 Fish Neck:l.95 Blade OD:12.063 # Blades:3 Fish Neck:l.80 Blade 0D:12.063 SECTION NAME (1) BIT (2) NB COMBO (3) FLOAT SUB (4) NM LEAD COLLAR (5) NM LEAD COLLAR (6) NM STAB (7) NM STAB (8) CROSS OVER (9) TELECO DIR (10) NM STAB (11) MONEL (12) MONEL (13) NM STAB (14) MONEL (15) JARS (16) 36 HWDP SPECIAL BHA ITEMS: (1) Bit #:9 (2) NB Combo ( 6 ) Stab (7) Stab (9) MWD (10) Stab (13) Stab BHA #9: 9219 '-9841' SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft 1.00 12.250 1.00 12.30 8.250 2.875 13.30 2.20 8.000 2.812 15.50 9.20 7.625 2.875 24.70 14.20 8.000 2.875 38.90 4.28 8.000 3.000 43.18 5.53 8.000 3.000 48.71 1.82 8.000 2.875 50.53 31.14 8.125 81.67 5.61 8.000 2.875 87.28 28.90 7.875 2.812 116.18 29.81 7.938 2.812 145.99 5.23 8.000 3.000 151.22 29.40 8.000 2.812 180.62 34.79 7.750 2.750 215.41 1085.04 6.375 3.000 1300.45 Bit Type:Smith Flow Area:.371 # Blades:7 Fish Neck:l.50 Blade OD:12.25 # Blades:3 Fish Neck:l.85 Blade OD:12.125 # Blades:3 Fish Neck:l.90 Blade OD:12.188 Serial #:2220-40 Type:4xD-TF1 # Blades:3 Fish Neck:l.95 Blade OD:12.063 # Blades:3 Fish Neck:l.80 Blade OD:12.125 SECTION NAME (1) BIT (2) NB COMBO (3) FLOAT SUB ( 4 ) NM LEAD COLLAR (5) NM STAB ( 6 ) NM LEAD COLLAR (7) NM STAB (8) CROSS OVER (9) TELECO DPR (10) NM STAB (11) MONEL (12) MONEL (13) STAB (14) 1 DC (15) JARS (16) 36 HWDP BHA #10: 9841'-10918' SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft 1.00 12.250 1.00 12.30 8.250 2.875 13.30 2.20 8.000 2.812 15.50 9.20 7.625 2.875 24.70 5.53 8.000 3.000 30.23 14.20 8.000 2.875 44.43 4.28 8.000 3.000 48.71 2.19 8.125 2.875 50.90 42.47 7.812 93.37 5.61 8.000 2.875 98.98 28.90 7.875 2.812 127.88 30.00 8.000 2.812 157.88 4.50 8.000 2.750 162.38 29.86 8.000 2.812 192.24 34.78 7.500 2.750 227.02 1085.04 6.375 3.000 1312.06 SPECIAL BHA ITEMS: (1) Bit #:10 (2) NB Combo ( 5 ) Stab (7) Stab (9) MWD (10) Stab (13) Stab Bit Type:Smith Flow Area:.371 # Blades:7 Fish Neck:l.50 Blade OD:12.25 # Blades:3 Fish Neck:l.90 Blade OD:12.25 # Blades:3 Fish Neck:l.85 Blade 0D:12.25 Serial #:1757-53 Type:4xDPR-TF3 # Blades:3 Fish Neck:l.95 Blade OD:12.063 # Blades:3 Fish Neck:l.06 Blade 0D:12.125 SECTION NAME (1) BIT (2) NB RWP ( 3 ) NM LEAD COLLAR (4) NM STAB (5) NM LEAD COLLAR (6) NM STAB (7) CROSS OVER (8) TELECO DPR (9) CROSS OVER (10) NM STAB (11) MONEL (12) MONEL (13) NM STAB (14) MONEL (15) CROSS OVER (16) JARS (17) 36 HWDP SPECIAL BHA ITEMS: (1) Bit #:11 (2) NB RWP ( 4 ) Stab ( 6 ) Stab (9) MWD (10) Stab (13) Stab BHA %11: 10918'-11632' SECTION SECTION sEcTION LENGTH OD ID ft in in CUMULATIVE LENGTH ft 0.85 8.500 0.85 7.91 7.000 2.250 8.76 9.30 6.125 2.875 18.06 6.06 6.500 2.875 24.12 9.64 6.500 2.875 33.76 6.12 6.500 2.875 39.88 1.07 6.250 2.250 40.95 41.17 6. 750 82.12 2.64 6.750 2.812 84.76 5.41 6.500 2.875 90.17 29.27 6.562 2.935 119.44 29.79 6.562 2.935 149.23 6.04 6.500 2.875 155.27 29.80 6.500 2.935 185.07 3.34 6.375 2.875 188.41 33.39 6.125 2.250 221.80 1085.04 6.375 3.000 1306.84 Bit Type:Smith Flow Area:.389 % Blades:4 Fish Neck:2.95 Blade OD:8.50 # Blades:3 Fish Neck:2.20 Blade OD:8.50 % Blades:3 Fish Neck:2.25 Blade OD:8.50 Serial %:644-51 Type:4xDPR-TF3 % Blades:3 Fish Neck:2.10 Blade OD:8.50 % Blades:3 Fish Neck:2.20 Blade OD:8.50 SECTION NAME (1) BIT ( 2 ) MUD MOTOR ( 3 ) XO-FLOAT (4) NM LEAD COLLAR (5) NM STAB (6) NM LEAD COLLAR (7) NM STAB (8) CROSS OVER (9) TELECO DPR (10) CROSS OVER (11) NM STAB (12) MONEL (13) MONEL (14) NM STAB (15) MONEL (16) CROSS OVER (17) JARS (18) 36 HWDP BHA #12: 11632'-12578' SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft 0.85 8.500 0.85 25.47 6.500 26.32 1.44 6.062 2.250 27.76 9.30 6.125 2.875 37.06 6.06 6.500 2.875 43.12 9.64 6.500 2.875 52.76 6.12 6.500 2.875 58.88 1.07 6.250 2.250 59.95 41.17 6.750 101.12 2.64 6.750 2.812 103.76 5.41 6.500 2.875 109.17 29.27 6.562 2.935 138.44 29.79 6.562 2.935 168.23 6.04 6.500 2.875 174.27 29.80 6.500 2.935 204.07 3.34 6.375 2.875 207.41 33.39 6.125 2.250 240.80 1085.04 6.375 3.000 1325.84 SPECIAL BHA ITEMS: (1) Bit #:12 (2) Mud Motor (5) Stab ( 7 ) Stab (9) MWD (11) Stab (14) Stab Bit Type:Smith Flow Area:.518 DD F2000S With 1 Degree Bent Housing # Blades:3 Fish Neck:2.20 Blade OD:8.50 # Blades:3 Fish Neck:2.25 Blade OD:8.50 Serial #:644-51 Type:4xDPR-TF3 # Blades:3 Fish Neck:2.10 Blade 0D:8.50 # Blades:3 Fish Neck:2.20 Blade OD:8.50 SECTION NAME (1) BIT (2) MUD MOTOR ( 3 ) XO-FLOAT (4) NM LEAD COLLAR (5) NM STAB (6) NM LEAD COLLAR (7) NM STAB (8) CROSS OVER (9) TELECO DPR (10) CROSS OVER (11) NM STAB (12) MONEL (13) MONEL (14) NM STAB (15) MONEL (16) CROSS OVER (17) JARS (18) 36 HWDP BHA #13: 12578'-12583' SECTION SECTION SECTION CUMULATIVE LENGTH OD ID LENGTH ft in in ft 0.85 8.500 0.85 25.47 6.500 26.32 1.44 6.062 2.250 27.76 9.30 6.125 2.875 37.06 6.06 6.500 2.875 43.12 9.64 6.500 2.875 52.76 6.12 6.500 2.875 58.88 1.07 6.250 2.250 59.95 41.17 6.750 ...... 101.12 2.64 6.750 2.812 103.76 5.41 6.500 2.875 109.17 29.27 6.562 2.935 138.44 29.79 6.562 2.935 168.23 6.04 6.500 2.875 174.27 29.80 6.500 2.935 204.07 3.34 6.375 2.875 207.41 33.39 6.125 2.250 240.80 1085.04 6.375 3.000 1325.84 SPECIAL BHA ITEMS: (1) Bit #:13 (2) Mud Motor (5) Stab (7) Stab (9) MWD (11) Stab (14) Stab Bit Type:Smith Flow Area:.589 DD F2000S With 1 Degree Bent Housing # Blades:3 Fish Neck:2.20 Blade 0D:8.50 # Blades:3 Fish Neck:2.25 Blade 0D:8.50 Serial #:2615-05 Type:4xDPR-TF3 # Blades:3 Fish Neck:2.10 Blade 0D:8.50 # Blades:3 Fish Neck:2.20 Blade OD:8.50 VIII. TELECO TOOL PERFORMANCE VIII. TELECO TOOL PERFORCE TOOL RUN 10 11 12 13 TOOL TYPE/# DTF1/2220-40 DTF1/2220-40 DTF1/2220-40 DTF1/2220-40 DTF1/2220-40 DTF1/2220-40 DTF1/2220-40 DTF1/2220-40 DTF1/2220-40 DPRTF3/1757-53 DPRTF3/644-51 DPRTF3/644-51 DPRTF3/2615-05 IN HOLE OUT OF HOLE TIME/DATE TIME/DATE CIRC. HOURS (*) MUD DEPTH DEPTH RUN/TOTAL MOTOR 0030/9-22 2100/9-22 16.5/16.5 YES 500 ' 1503 ' 2200/9-22 1300/9-23 11.0/27.5 YES 1503 ' 2533 ' 1500/9-23 1400/9-24 17.5/45.0 YES 2533 ' 3870 ' 1500/9-24 2100/9-24 1.5/46.5 NO 3870' 3870' 0100/9-26 2100/9-26 10.0/56.5 NO 3870 ' 4862 ' 2200/9-26 0830/9-28 28.0/84.5 YES 4862 ' 6628 ' 0930/9-28 2000/9-29 28.0/112.5 YES 6628 ' 7988 ' 2030/9-29 2400/9-30 20.5/133.0 YES 7988 ' 9219 ' 0100/10-01 0700/10-04 16.0/149.0 NO 9219' 9841' 1400/10-04 0100/10-06 19.7/19.7 NO 9841 ' 10918 ' 0130/10-07 1630/10-08 16.5/16.5 NO 10918 ' 11632 ' 1730/10-08 0400/10-10 23.0/39.5 YES 11632 ' 12578 ' 0500/10-10 2230/10-10 5.0/5.0 YES 12578 ' 12583 ' Circulating hours does not include trip time or other non- pumping time. It is used to determine the Mean Time Between Field Failures (MTBFF) of the tool in a drilling environment according to IADC conventions. IX. TELECO SERVICES IX. TELECO SERVICES SURFACE SYSTEMS TR2300-004'. M-SERIES' · TR700: DIRECTIONAL-GAMMA RESISTIVITY. 1.33 SOFTWARE DIRECTIONAL MWD TOOLS - TYPE (*) DATA TRANSMISSION SIZE S/N 4X DTF1 4X MILLER CODE 8 1/4" 2220-40 4X DTF1 4X MILLER CODE 8 1/4" 802-63 4X DPR-TF3 4X MILLER CODE 7 3/4" 1757-53 4X DPR-TF3 4X MILLER CODE 7 3/4" 2207-40 4X DPR-TF3 4X MILLER CODE 6 3/4" 644-51 4X DPR-TF3 4X MILLER CODE 6 3/4" 2615-05 DOWNHOLE MEASURED PARAMETERS - DIRECTIONAL: INCLINATION, AZIMUTH, TOOL FACE ORIENTATION GAMMA: NATURAL GAMMA RADIATION RESISTIVITY: DUAL PROPAGATION TEMPERATURE: DOWNHOLE CIRCULATING SURFACE MEASUREMENTS - KELLY HEIGHT ROP (RATE OF PENETRATION) WOB (WEIGHT ON BIT) STANDPIPE PRESSURE (*) Explanation of Tool Types DTFi: Teleco Tool Family 1 -- Directional Only DPR-TF3: Teleco Tool Family 3 -- Dual Propagation Resistivity, Natural Gamma Ray Detection (Scintillator) Directional ARCO ALASKA INC. LISBURNE ENGINEERING DATE: FROM: February 12, 1992 Laura S. Lahrson ENCLOSED IS THE FOLLOWING DATA FOR LISBURNE: Log: Well Type 1 blueline, I mylar Log: Well Type 1 blueline, 1 rolled mylar L4-03 ~/Perforating Record ~ ,/Perforating Record L4-31 - Perforating Record L5-16 ~'/Perforating Record L5-26 '/Pressur.e Data Log L5-26 "'"Engineering Parameters (2" MD) L5-26 ~fEngineering Parameters (2" TVD) ~o~ L5-26 ~" Integrated Formation Log (2" MD) L5-26 '/Integrated Formation Log (2" TVD) /L5-26~ Gamma Ray 2" TVD L5-26 ~'Gamma Ray 5" TVD L5-26 -' Gamma Ray 2" MD L5-26 -'Gamma Ray 5" MD L5-08 ¢/Leak Detection L4-15 ~Erpilog -Prism Run Run Date Run Run Date n/ts/91 9/14/91 9/25191 /n/92 11100191 11/07/91 11/00/91 n/o7/9 n/07/91 11/19-12/03/91 11/19-12/03/91 11/19-12/03/91 11/19 -12/03/91 11103191 12/22/91 Tape: Well Type Run L5-26 "/GCT Directional Survey (lis) . 1 ~L4-12,y/DIFL / SDL-CN-GR-CAL (lis) ~ L5-26 Exlog Data Disk -": ~ Run Date 12/04/91 0/29/91 11/07/91 Company Company Halliburton Halliburton Halliburton Halliburton Exlog Exlog Exlog Exlog Exlog Halliburton Halliburton Halliburton Halliburton Camco Atlas Company Schlumberger AAI SIGN AND RETURN TO: LAURA S. LAHRSON, ATO 409 ARCO ALASKA, INC. P.O. Box 100360 ANCHORAGE, ALASKA 99510-0360 RECEIVED BY: Exxon BPX TRANSMITTAL # 657 AOGCC D&M RECEIVED FEB 1 8 Alaska Oil & C~as Cons. Commission Anchorage ARCO ALASKA INC. . LISBURNE ENGINEERING DATE: FROM: December 11, 1991 Laura S. Lahrson ENCLOSED IS THE FOLLOWING DATA FOR LISBURNE: Log: ./Well Type ~..~/_LSb!~;, i n e L,ear~Y~re t ection Log ~ -._~~L4-31 Production Profile et.~_:L4-15 Temperature Log "~4-15 Prism ~'J- ~L4-32 '--~./' L5-26 "'% k5-26 ?,,0~5-26 Correlation Log/Perforation Record Gyro Direction Survey (GCT) Dual Prop./Resis/GR (TVD) Dual Prop./Resis/GR (MD) Tape: ?.tWell L4-12 L4-12 GCT Directional Survey Dual Prop/Resis/GR Run Run Date Company I 10/30/91 Camco I 11/01/91 Camco 1 11/26/91 Atlas 1 11/26/91 Atlas 1 11 /18/91 Schlumberger 1 12/04/91 Schlumberger 11/13-19/91 Teleco 11/13-19/91 Teleco Run Run Date 2 10/30/9I 10-13 10/10/91 Company Schlumberger Teleco SIGN AND RETURN TO: LAURA S. LAHRSON, ATO 409 ARCO ALASKA, INC. P.O. Box 100360 ANCHORAGE, ALASKA .99510-0360 RECEIVED Exxon t,-- BPX ' ' AOGCC D&M TRANSMITTAL # 655 RECEIVED DEC 1 3 1991 A/aska Oil & Gas Cons. Commission An~grage ' , ~.," . iR , · RECEIVED, subject to the classifications and' tariifS' in ~i~Ci-6~'"~t't~'~':'~da~e-6~':' ':~ the receipt by the carrier of the property described in the Original Bill of Lading. COMBiNEDI.~aJ.[:~ ORM STRAIGHT BILL OF LAD ND FREIGHT BILL: ORIGIN/-, CT-NEGOTIABLE ATC-COM-13 ALDT ICC-MC-119402 ALDT ARCO 6 !9 'WAREHOUSE AVE ANCHORAGE ALASKA g 9 fL"2 "BILL TO" OTHER THAN SHIPPER OR CONSIGNEE: ARCO PAYABLES P.O. BO× i479 STATE of ALASY~, OIL & GgS CONSERVATION CO,qgISSIO~ ATTN: 3001 PORCUPINE ANCH., AK ~fi SPECIAL SERVICES: AFT: 1-11-19~ ~'7 ""A P CC: ~...00~5 ANCH~, AK. 99510 DESCRIPTION OF ARTICLES AND CONTENTS X X = T 0 PIECES L4~[2 DRIED SAMPLES IN : WEIGHTS SUBJECT TO DIMENSIONAL CORRECTION (suWb.EtoGcHoTrr.)13~/ CLASS I BR'~sTI~ CARRIER'S NUMBER DATE 19 NOV !991 19 UNLESS OTHERWISE INDICATEu CHARGES ARE ASSUMED TO BE COLLECT. iOFt~PPER'S SIGNETUR E: NSlGNEE DES~R~jFREIGHT RECEIVED IN SIGNATURE' GO~ OR~R EXCEPTAS NOTED BY: CONSIGNEE (PRINT NAME) - <~REPAID LJ COLLECT "BILL TO" SHIPPERS NUMBERS CHARGES ].O.D.I LIAR LITY TOTAL tordama, ed in transit carrier'slab tysha b~rof'a th~ ~eteased value of the sh ~)mentorb)theamountoflossor f this sh pment s los g - ' · ' mm<imum of $10 000 per shipment damage actually sustained. The released va ue of th s sh pment ~s 50 cents per pound per pece, subject to a and a m~nimum of $50.00 per shipment, unless a higher released value is declared, below: The released value of the property is hereby stated by the shipper to be not exceeding per EXECUl/~/u I~Y" ~qI:~I'~A~I:~I~AND TRANSPORT INC Subect o S ...... 7 of .......... if this ~6ATE/~"- ' . ' ' sh pment is to be deli .... d to ti ....... ignee ~) , ~¢:¢~t ~ / ' /c.,~ ¢. ~ ~-' I cons,g ....hall sign the following st ........ NAM ~_ ~----= .~, ~ ~ l~., _~) . Jwithout recourse on the consignor, the I- F2~' .~.~'~ / f / .~ (_...t~ '])J The carrier shall not make delivery of J'.. ~¢~¢~ ~ ¢ ~ -- / -' ~ ~ J this shipment without payment of freight JDAT~IME JAI~ND DRIVER J and al otb? lawful charges. DANGEROUS ARTICLES CERTIFICATION: This is to certify that the above-named articles are properly classified, described, packaged, marked and labeled, and are in proper condition for transportation, accor- ding to the applicable re9Hlations of the Department of Transportation. Signature of Shipper: ARCO Alaska, Inc. Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 276 1215 SAMPLE TRANSMITTAL TO: State of Alaska Oil & Gas Conservation Comm. 3001 Porcupine Dr. Anchorage, Ak. 99501 DATE' 19 November, 1991 AIRBILL #: .~JO-OO(~oO1~3',A L 5 / 0 / .~ c) AFT#.1-11-18-~7 CHARGE CODE# 2A0005 OPERATOR: Arco SAMPLE TYPE: dry ditch NAME: L4- ] 2 t~ I -2{ APl NO: NA NUMBER OF BOXES' ~ 8 SAMPLES SENT' DRIED SAMPLES OVER THE INTERVAL 10000'- 14970' 1991 >'-; ..... '.,~ i:; .;',, Gas Go[Is, Comrrlissiorl SENT BY: D. L;:;Pr~z~'W~f~rag_¢., UPON RECEIPT OF THESE SAMPLES, PLEASE NOTE ANY DISCREPANCIES AND MAIL A SIGNED COPY OF THIS FORM TO: RECEIVED ArcoAlaska, Inc. P. O. Box 100360 Anchorage, AK. 99510 Attn: D. L. Przywojski DATE' ABV-100 ARCO Alaska, Inc. is a Subsidiary of Atlantic Richfield Company AR3B-6003-C ARCO ALASKA INC. LISBURNE ENGINEERING DATE: FROM: November 12, 1991 Laura S. Lahrson :32 L4-12 Tape: Well ~-32 ~[~-32 ENCLOSED IS THE FOLLOWING DATA FOR LISBURNE: Log: Well Type Run 1..~ueline, 1 sepia ,x~L4-12 Gyro Continuous Survey 2 ~~-'04 Collar Log 1 coke'" .~2~.' ~"' ~ -~ Dual Induction Focused Log-GR 1 ~ Z-Densilog 1 · ~--12 Spectralog 1 ~L4-12 Pressure Data Log (MD) .~" J~L4-12~ Integrated Formation Log (2"=100' MD) ~'L4-12 Integrated Formation Log (2"=100' TVD) .~1~12 Engineering Parameters (2"=100' MD) 12 Engineering Parameters (2"=100' TVD) Perforating Log 1 Temperature Log 1 Gamma Ray plus Directional (5"=100' TVD) Gamma Ray Gamma Ray Gamma Ray Gamma Ray Gamma Ray Gamma Ray Gamma Ray plus Directional (2"=100' TVD) plus Directional (5"=100' MD) plus Directional (2"=100' MD) (5"=100' TVD) (2"=100' TVD) (5"=100' MD) (2"--100' MD) Type DIFL/SZDL/CN-GR GCT Edit OH Edit (DITE/NGT/LDT/C Run Date Company 10 / 30 / 91 Schl um berg er 10/25/91 Atlas 10/29/91 Atlas 10/29/91 Atlas 10/29/91 Atlas 9/21/91 Exlog 9/21/91 Exlog 9/21/91 Exlog 9/21/91 Exlog 9/21/91 Exlog 8/17/91 Haliburton 9/27/91 Haliburton 8/20-9/13 Hal~burton 8/20-9~/13 .~ H~burton 8/20-9~/~3 / Haliburton 8/20-9/13 Haliburton 10/12-10'/29 Haliburton 10/12-10~/29 Haliburton 10/12-10/29 Haliburton 10/12-10/29 Haliburton Run Run Date Company 10/29/91 Atlas I 10/17/91 Schlumberger 1 10/09/91 Schlumberger RECEIVED NOV l 199 Alaska Oil ~& Gas Cons. Commission ,'Anchorage Transmittal 653 Page 2 SIGN AND RETURN TO: LAURA S. LAHRSON, ATO 409 ARCO ALASKA, INC. P.O. Box 100360 ANCHORAGE, ALASKA 99510-0360 RECEIVED ......... Exxon~///BPX / AOGCC D&M TRANSMITTAL # 653 RECEIVED ~991 Alaska Oil & Gas Oons. Commissiort Anchorage MEMORANDUM Stale of Alaska ALASKA OIL AND GAS CONSERVATION COMMISSION TO: Lonnie C Smi~' Commissioned DATE: October 30, 1991 FILE NO: HHIO30-8.DOC THRU: Blair Wondzell Sr. Petr. Eng. TELEPHONE NO: SUBJECT: Rig/BOPE Inspection PBD PBU DS L4-12 Permit No. 91-118 Prudhoe Oil Pool FROM: Harold R Hawkins ~./~.~W Petr Inspector Sunday, .October 27, 1991 I made a BOPE walk through inspection on AUDI Rig 2. The inspection was thorough. I found no infractions. I filled out a BOPE walk through inspection report which is attached. In summary, the rig/BOPE inspection was satisfactory for AAI PBU DS L4-12 on AUDI Rig 2. No infractions were found. Attachment 02-001A (Rev. 6/89) OPERATION: Drlg / Operator /6> ~ ~) Location: Sec ~/ Drlg eontr .AF/D / Location (gan'l) I N COMPL ! ANCE; yes no n/a 1. ( ) ( ) (.) 3. ( r,x (y ( ) ~. ()~) () 7./( ) ( ) ~( ) 1.(~ () ( 2.(~ () ( q.(/ () ( s.(~F () ( 6.(~ () ( 7.(~ () ( 8.(~ () ( 10. (bx) ( ) ( 11. (~ ( ) ( 12. (~/) ( ) ( 13. (/,') ( ) ( 14. (~) ( ) ( is. (~ () ( 1.(v; () 2. (~ ( ) 3.(~ () 4.(>) () s.(~) () 6. (/) ( ) 7.(A () 8. (j.... ( ) 9 (.~ ( ) ( 10.(~ () ( REMARKS: .~.,/~ 5 Wkvr TI/I,.-/ STATE OF ALASKA ALASKA 01L AND GAS CONSERVAT I ON COMM I SS,.,, A. DIVERTER line sz & length line conn& anchored bifurcated & dwn wind BOPE Walk-Thru Inspegtion Report UlC Permit # R /~C( I~ M Ri g# Well sign DATE, /~./~ ~/~c~/ Representative Well name Representati I N COMPL I ANCE; 11. (~j~ ( ) ( ) 12. (~ ( ) ( ) 13. ( ~/' ( ) ( ) 90° targeted turns vlvs: auto & simultaneous 1. (~ ( ) annular pack-off 2. (P) '( ) condition 3. (~ ( ) B. BOP STACK 4. (//~ ( ) ) wellhead flg wkg press 5. (~)~ ( ) ) stack wkg press 6. (~/~ ( ) ) annular preventer 7. (J~)~ ( ) ) pipe rams 8. (~ ( ) ) blind rams ) stack anchored 1. (~. ( ) ) 90~ turns targeted (chke & kill In) 3(J~ ( ) ) HCR vlvs (chke & kill) 4. (/~ ( ) ) manual vlvs (chke & kill) ) connections (flgd, whd, clmpd) ) drl spool S. (~/ ( ) ) flow nipple 6. (~) ( ) ) flow monitor ) control lines fire protected 7. (k/~ ( ) C. CLOSING UNITS 8. (t,)'" ( ) ( ) wkg press () fluid level 1. (1,~'. ( ) ( ) oprtg press 2.(C~ ( ) ( ) press gauges ( ) sufficient vlvs 3. (~' ( ) ( ) regulator bypass 4. (~ ( ) ( ) 4-way vlvs (actuators) 5..(v~ ( ) ( ) blind handle cover ) driller control panel 6. I'Z,~ () ) remote control panel 7. ( ) firewall nitrogen power source (back-up) condition (leaks, hoses, etc) D. MUD SYSTEM ( ) pit level floats installed ( ) flow rate sensors ( ) mud gas separator ( ) degasser ( ) separator bypass ( ) gas sensor ( ) chke In conn ( ) trip tank E. RIG FLOOR ( ) kelly cocks (upper,lower,IBOP) ( ) floor vlvs (dart vlv, ball vlv) ( ) kelly & floor vlv wrenches ( ) driller's console (flow monitor, flow rate indicator, pit level indicators, gauges) ( ) kill sheet up-to-date ( ) gas ~etection monitors (H-S & methane) ( ) hydr chke panel ( ) chke manifold F. MISC EQUIPMENT ( ) flare/vent line ( ) 90° turns targeted (dwn strm choke lns) ( ) reserve pit tankage ( ) personnel protective equip avail ( ) all drl site suprvs trained for procedures ( ) H2S probes ( ) rig housekeeping RECORDS: Resul ti ng non-compl iance: ~./~A Non-compliances not corrected & why: /~//~. Date corrections will be completed: .~'/~ ~0~ test & results properly entered on daily record?/K~y m ? Date of l asr BOP test: ~/~/~ Kill sheet current? ,', nc, lq ~ .... rt'-419qlC~l~ TO: THRU: MEMORAN uUM Sta e of Alaska ALASKA OIL AND GAS CONSERVATION COMMISSION Lonnie C. Smi~ Commi s s ioner/~ ~J · DATE: Sept. 30,1991 FILE NO: DA. 930- 2 TELEPHONE NO: SUBJECT: BOP Test AAI L4-12 Permit No. 91-118 Lisburne Oil Pool FROM: Doug Amos~ Petroleum Inspector Wedn~.sdav~SeDt,::25.1991: I traveled this date from AAI's KRU to D~I Lisburne well L4-12 to witness the BOP test on AUDI Rig No. 2. The testing commenced at 5-00 pm and was concluded at 8:00 pm as the attached AOGCC BOP Test report indicates there was no well sign at the rig and no gas available to check the gas detectors. The well sign was installed before I left the location this date and I was contacted by James Carlile AAI rep on 9/28/91 and informed that the H2S gas had arrived and the gas detectors were calibrated. In summary, I witnessed the BOP Test at AUDI RIG No. 2 at AAI's L4-12 well. All failures were corrected on 9/28/91. Attachment. 02-001A (Rev. 6/89) 20/ll/MEMO1.PM3 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION BOP Test Report OPERATION: Drlg ~ Operator /~L Wkvr Location: Sec ~ T 7/ /~7 R Location (general) Housekeeping (general) Reserve pit .... Well sign Rig Rig# DATE TEST: Initial ~ Weekly Representative J~~j Permit # '~:~,/' //~ /~¢# Casing set ~ ACCUMULATOR SYSTEM: Full charge pressure Press after closure Other ft psig psig MUD SYSTEMS: Trip tank Pit gauge Flow monitor Gas detectors Vi sual Audio Pump incr clos press 200 psig Full charge press attained N2 ~'~_./~ Controls: Master Remote KELLY AND FLOOR SAFETY VALVES: min _~5 sec min _~ sec psig. Blind switch cover /~'~:::..~ ~I~oP ~ Upper Kelly j/ Test pressure BOPE STACK: Test Pressure Lower Kelly ~ / Test pressure Annular preventer~'~ } ~$.~(5)(~;~ Ball type ~ / Test pressure Pipe rams ~ ~ ~ ~/ 000 Inside BOP ~ / Test pressure Blind rams w~ / t/ Choke manifold mmm / Test pressure Choke line valves ~. Number valves / ~ HCR valve ~ ~ ~ Number flanges ,~/ Kill line valves ~ I' Adjustable chokes ~ Check valve ~ Hydraulically operated choke / ttt1 Failures ~ Test time ~,~ hrs Repair or replacement of failed equipment to be made within / days. Notify the Inspector, and follow with written/FAXed verification t.o Commission office. ~b~ ~,&c'i".~b°7 pAc-~-~. ~i~tu>U l.-/zj b~t~"c ~F'~ ,~rr' TEST RESULTS: Remarks: Distribution: orig - AOGCC c - Operator c - Supervisor C.004 (rev 07/08/91) WITNESS WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 276-7542 September 16, 1991 Mike Zanghi Area Drilling Engineer ARCO Alaska, Inc. P. O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay/Lisburne L4-12 ARCO Alaska, Inc. Permit No. 91-118 Sur. Loc. 2132'FSL, 2117'FEL, Sec. 24, TllN, R15E, UM Btmnhole Loc. l185'FSL, 1952'FWL, Sec. 07, TllN, R16E, UM Dear Mr. Zanghi: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does not exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. The Commission will advise you of those BOPE tests that it wishes to witness. David W. J~hnst~, Chairm~an Alaska Oil a s Conservation Commission BY ORDER OF THE COMMISSION dlf/Enelosures CC: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PER IT TO DRILL 2O AAC 25.OO5 la. Type of work Drill [] Redrilll'311b. Type of well. Exploratoryr'q Stratigraphic Test[] Development OilE] Re-Entry [] DeepenI-II Service [] Development Gas [] Single Zone [] Multiple Zone [] 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool ARCO Alaska, Inc. KBE =56' feet Prudhoe Bay Field/Lisburne Oil 3. Address 6. 15'roperty Designation Pool P. O. Box 196612. Anchorac~e. Alaska 99519-6612 ADL 28338 4. Location of well at surf-ace 7. Unit or property Name 11. Type Bond(see 20 ^^c 2s.o25) 2132' FSL, 2117' FEL, SEC. 24, T11N, R15E Prudhoe Bay/Lisburne At top of productive interval 8. Well number Number 650'FNL, 1175'FWL, SEC. 18, T11N, R16E 1~ L4-12 U-6300610 At total depth 9. Approximate spud date Amount 1185' FSL, 1952' FWL, SEC. 07, T11N, R16E September 18, 1991 $200,000.00 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property15. Proposed depth(uDandTVD) pro po~/~L line 28320 @ 1952' f e e t L 4-10 @ 1250'/35' fee t 2560 14889'MD/8955'TVI] e e t 16. To be completed for deviated wells 17. Anticipated pressure (see 2o AAC 25.03s (e)(2)) Kickoff depth 5oo'/~553{eet Maximum hole angle e5 o Maximum surface 2770pslg At total depth (TVD) 3650'pslg 18. Casing program Specifications Setting Depth s~ze T~)p Bottom Quantity of cement ........ Hole Casing Weight Grade Coupling Length M D TVD M D TVD (include stage data) 30" 20" 94.5# H-40 WELD 80' Surface 110' 110' 16" 13-3/8" 68# L-80 BTC 3843' Surface 3873' 3500' !3292 cuft Permafrost E/Class G ,,,,,, 12-1/4" 9-5/8" 47# L-80 BTC.MOD 5429' Surface 5459' 4500' 12-1/4" 9-5/8" 47# L-80 BTC 5411' 5459' 4500' 10870' 7913' 440 cuft Class G 8-1/2" 7-5/8" 29.7# L-80 FL4S 2331' 10570' 7724' 12901' 8782' 339 cu fl Class G 6-3/4" 4-1/2" 12.6# L-80 BTC-M 4418' 10471' 7661' 14889' 8955' Uncemented Slotted/Solid Liner 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs (measured) true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cemented Measured depth True Vertical depth Structural Conductor Surface Intermediate SEP ! ]99t Production Perforation depth' measured ...~~'~ true vertical 20. Attachments Filing fee [] ProPerty plat ,r-j BOP Sketch [] Diverter Sketch [] Drilling program[] Drilling fluid program [] Time vs depth pict [] Refraction analysis[] Seabed reportl-I 20 AAC 25.050 requirements[] 21. I hereby certify t~at ,the foregoin(. ~is true and correct to the best of my knowledge Si~lned':{~''~' ~-x(/~ -.~'~ t Title Area Drilling Engineer Date -- -(,.~c,,,;~ Commission Use Only ... Permit Number IAPI number . _. IAppro_.val date See cover letter ~'//-,//~ 150-c>~'-- ~_. ~_../~ I Y"-'-//~---~/" for other requirements .... Conditions of approval Samples required [] Yes '~'No Mud log required. [] Yes/~ No Hydrogen sulfide measures [] Yes/q~] No Direction~ survey requ~rea ~ Yes [] No Requ~e fo~M; 1-13M; I~SM; I-!1 OM; 1-115M; Ct h~.' ~' ~.._.._~.~.~ ~. ~. ~ / , _ . by order of Approve-"~'0"b3~J~;~ ~('.~~~---~--- Comm,ssioner ~ne comm,ssion Date~Z.~__~_f Form 10-401 Rev. 12-1-85~~ L4-12 PROPOSED DRILL and. COMPLETE PROGRAM The subject well is planned as a high-angle producer (13-3/8" x 9-5/8" x 7-5/8" liner x 4-1/2" uncemented liner) in the Wahoo interval. In order to reach the target, two separate build sections will be required. The well will be kicked off at 500' TVD / MD in a N22.94° E direction in the 16" surface hole with a 8.8 - 9.4 ppg gel/Benex spud mud. A multiple-build technique will be used to achieve a final angle of 50.9°. The end of the surface build section is at 3437' TVD / 3773' MD. 13-3/8" surface casing will be set at 3500' TVD / 3873' MD. The 13-3/8" casing and 10' of new hole will be drilled and a F.I.T performed. The 12-1/4" intermediate hole section will be drilled with a LSND lightly-treated polymer mud at 9.4 - 10.4 ppg. Hole angle and direction will be held constant. 9-5/8" intermediate casing will be set above the K-10 at 7,913' TVD / 10,870' MD. After drilling out and performing a F.I.T. to 12.5 ppg EMW, the water based mud will be changed out in favor of a 9.5 ppg 70/30 invert-emulsion mud made with Conoco's LVT 200 mineral oil. After drilling 682' of 8-1/2" hole, the second angle build section will start. The angle will be built at 3°/100. to a final angle of 85.0° at 8764' TVD / 12689' MD. Another_+ 200' (MD) will be drilled at 85° to the prognosed top of Lisburne. A 7- 5/8" protective liner will be set to case off the remaining shales above the Lisburne. NOTE: There is potential for high pressure gas sands above the LCU (which may be at top Lisburne) which may require 11 ppg mud to drill. Due to the presence of 10' thick shale breaks (114' MD at 85°) within the Lisburne, oil based mud at 9.0 ppg will be required in the production hole section also. 2000' of 6- 3/4" hole will be drilled through the Lisburne at 85°. One drill pipe conveyed logging run is planned. L4-12 will be completed with a 4-1/2" pro-drilled liner and 2-7/8" tubing. PRUDHOE BAY DRILLING Slructure · D.S. L4 Field ' Prudhoe Bay Well · 1 2 Location · North Slope, Alaska Created by : jones For: P CHAN Dote plotted : 5-Sep-91 ]Plot Reference is 12 Version ~2. ICoordinates are in feet reference slot t12. ITrue Vertical Depths are reference wellhead.I / [-)J~fl EASTM AN / IZ//_//tllC H R I S T E N S E N N 22.94 DEG E 8446' (TO TARGET) TARGET 1VD-8781 TMD=12889 OEP=8446 NORTH 7778 EAST 5292 0 600 - o ~ 0 · . 600 - oo 12o0- _ c" - ~._ 2400- q~ - ~ 3000- _ o ~ 4200- (D - 4800- (D - ~ 5400- I-- - 60O0- I - 7200- 7800- 8400 - 9000- RKB ELEVATION: 56' KOP#t TVD=500 TMD=500 DEP=O BUILD 1 DEG / 100' EOC ~1TVD=1451 TMD=1455 DEP=79 BUILD 1.5 DEC / 100' EOC t2'1VD=2404 TMD=2455 DEP=572 BUILD 2 DEG /100' EOC ~3 TVD=5457 TMD=3773 DEP=1171 15 3/8"CS0 PT TVD=3500 TMD=3873 DEP=1249 AVERAGE ANGLE 50.9 DEG 9 5/8"CSG PT TVD=7915 TMD=10870 DEP=6679 K-10 TVD=7976 TMD=10970 DEP=6757 KOP ¢2TVD=854-5 TMD=11553 DEP=7209 K-2 T'/D=S571 TMD=11974 DEP=7565 FINAL EOC 'PVD=8764 TMD=12689 DEP=8247 TARGET - T/ WAHOO WD=8781 TMD=12889 DEP=8446 7 5/~'csG PT TVD=8782 TMD=12901 BEP=8457 '"TD'/TVD=8955 TMD=14889 DEP=lO¢38 ,.,.,:,oo.oo Easf--> 6000 600 1200 1800 2400 5000 3600 4200 4800 I J I I I I I I , II I I I I I I I J J TD LOCATION: ] 1185' FSL, 1952' FWL[ SEC. 7, T11N, R16E J TARGET LOCATION: 650' FNL, 1175' FWL SEC. 18, T11N, R16E SURFACE LOCATION: 2132' FSL, 2117' FEL SEC. 24, T11N~ R15E 102O0 _ - 9600 8400 7200 6000 5400 4800 42000 3600 1800 1200 03 600 · . 0 04 BUILD 3 DEG / 100' FINAL EO~ ~ ~ ~~~,~ t 1991 TARGET ANGLE 85 DEO i i i i i t i i [ i i i i i I i i i i i i i ] i i i i i i [ i i i i i i I I i 0 600 1200 1800 2400 3000 3600 4200 4800 54.00 6000 6600 7200 7800 8400 9000 9600 10200 10800 11400 Scole 1 ' 300.00 Verficol Section on 22.94 azimuth with reference 0.00 N, 0.00 E from slot #12 Cement Volume Calculation Well Name: L4-12 Rig Name: Audi #2 Surface Hole Intermediate Hole Production Hole Hole Size: 16.00 in Hole Size: 12.25 in Hole Size: 8.50 in Casing Size: 13.375 in Casing Size: 9.625 in Casing Size: 7.625 In Shoe Depth: 3873 ft Shoe Depth: 10871 ft Shoe Depth: 12947 ft Vol. Factor: 0.4206 cuft/ft Vol. Factor: 0.3132 cuft/ft Vol. Factor: .0770cuft/ft Safety Factor: 2.0 Safety Factor: I .3 Safety Factor: 1.30 Excess Vol.: 33.6 cuft Excess Vol.: 32.88 cuft Excess Vol.: 131 cuft Lead Yield: 1.97cuft/sx Lead Yield: 1.16 cuft/sx Lead Yield: 1.18cuft/sx Tail Yield: 1.15cuft/sx Tall Yield: I cuft/sx Tall Yield: I cuft/sx Permafrost Depth: 2057 ft TOC 9871 ft Total Vol.: 3291.57 cuft Total Vol.: 440.04 cuft Total Vol.: 338.81 cuft 586.26 bbls 78.38 bbls 60.35 bbls Lead Vol.: 2891.57 cuft Lead Vol.: 440.04 cuft Lead Vol.: 338.81 cuft 515.01'bbls 1467.8 sx 78.38bbls 379.3sx 60.35 bbls 287.1 sx Tall Vol.: 400.00 cuft Tall Vol.: 0.00 cuft Tall Vol.: 0.00 cuft 71.24 bbls 347.8sx 0.00 bbls 0.0 sx 0.00 bbls 0.0 sx TOT)J-AC[Ik'F 3¢J[~ ' I:~te I1~ _ IBq 6BL SUCT,O~I (,I ro ~lUD .¢ TA,LI t. iJ ~0 86L OR~Pr - rP.~DE~*I ~o fir Th.j( I- DeJnoo 6-12" Cone Shale Des~ncle~ ~- De~ 41~I! ~/15 cones r~ (1) Demoo ~Bil w/15 cones (Desilbe~) 1 - Dr ilco Rtmospheric Mud Degasser 1 - 200 Operating Capacity. Centrifuge 15 - Brandb MA5 Mud Mix Agitators 1- 150 bbl. Trip T .a~k 1 - Reoording drilling fluid pit level indica~or with boU] visual and audio warning devices at driller's oonsole ' 1.-Dr~llina fluid flc~.] sen~or will re~dout at drili%~.'.s console BOP STACK CONFIGURATION 13 5/8", 5000 PSi WP .. TRIPLE RAM STACK DRILLING RISER ANNULAR PREVENTER PIPE RAMS ! BLIND RAMS I 2" KILL LINE MANUAL HYDRAULIC GATE GATE DRILLING SPOOL i · PI PE RAMS 1 4" CHOKE LINE HYDRAULIC MANUAL GATE GATE .: AC ,, LE DIVERTER SYSTEM -::.:'." Twa lines venting g0 deg. apart in directions that ensure safe down wind venting, and ex- lending to a point at least 100' [rom any' potential~'' source of ignition. 10' Full Opening Valves ......... 35' or as required "' Dresser Sleeve 10' Diveder Line 1. All pipe c~nnectJons 150# ANSi Flanges or welded c~nnectbns and secured to prevent movemenL 2. Manua[ 10' full opening valves mechanically connected to ensure that one valve is fail-safe open at all limes. 3. All tums are gO deg. and targeted. 10' Full opening bali valve w/Hydraulic Actuator Gel[ar 20" Diverter Spool wi 10' Side Outlet MEM 1/3/90 ITEM (1) Fee (2) Loc ** CHECK LIST FOR NEW WELL PERMITS ** APPROVE [9 thjrq 15] / '' [10 & 13] [14 thru 22] [23 thru 28] (6) Other W~_ /,2/~} [29 thru 3d_]~ geology: eng i neer i ng: ~ DW, rev 03/29/91 jo/6.011 t 10. 11. 12. 13 14. 15. 16. 17. 18. 19. 20. 21. 22. Company , .~./~_Fg NO REMARKS 1. Is permit fee attached ............................................... YES 2. Is well to be located in a defined pool .............................. ~ 3. Is well located proper distance from property line ................... ~ 4. Is wei 1 located proper distance from other wells ..................... ~_ 5. Is sufficient undedicated acreage ava[.l'able in this pool ............. 6. Is well to be deviated & is wellbore Plat included ................... 7. Is operator the only affected party .................................. 8. Can permit be approved before 15-day wait ............................ · Does Operator have a bond in force ................................... ~ Is a conservation order needed ....................................... 23. 24. 25. 26. 27. 28. Is administrative approval needed .................................... Is lease nLrnber appropriate ........................................... Does well have a unique name & ncrnber ............................ .... Is conductor string provided ......................................... Will surface casing protect all zones reasonably expected to serve as an underground source of drinking water .................. Is enough cement used to circulate on conductor & surface ............ Will cement tie in surface & intermediate or production strings ...... Will cement cover all known productive horizons ..................... Will all casing give adequate safety in collapse, tension, and burst. Is well to be kicked off from an existing wellbore ................... Is old wellbore abandonment procedure included on 10-403 ............. Is adequate wel l bore separation proposed · Is a diverter system required ........................................ Is drilling fluid program schematic $ list of equipment adequate ..... Are necessary diagrams $ descriptions of diverter & BOPE attached .... Does BOPE have sufficient pressure rating -- test to 45~oom psig ..... Does choke manifold comply w/API RP-53 (May 84) ...................... Is presence of H2S gas probable ...................................... FOR EXPLORATORY & STRATIGRAPHIC WELLS' Are data presented on potential overpressure zones ................... Are seismic analysis data presented on shallow gas zones ............. If offshore loc, are survey results of seabed conditions presented... Additional requirements ............................................. IN'ITIAL GEOI UNIT ON/OFF _ POOL' CLASS STATUS AREA ~ SHORE 29. 30. 31. 32. v ' / /% v ' 0 -4 ~'TZ · i,i.t 0 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 this category of information. Tape Subtile i is type: LIS **** REEL HEADER **** 92/ 1/ 7 01 **** TAPE HEADER **** 92/ 1/ 7 01 Tape Subfile: 1 Minimum record length: Maximum record length: 2 records... 132 bytes 132 bytes RECEIVED FEB 18 1992 Alaska Oil & Gas Cons. Commission Anchorage Tape Subfile 2 is type: LIS TAPE HEADER PRUDHOE BAY UNIT OPEN HOLE WIRELINE LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA L4-12 500292221600 ARCO ALASKA, INC ATLAS WIRELINE SERVICES 07-JAN-92 RUN1 RUN2 RUN3 JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION(FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING RECORD 89798 J. DAHL J. KNOCK 24 liN 15E 2132 2117 56.00 56.00 17.50 OPEN HOLE CASING DRILLER' S BIT SIZE (IN) SIZE (IN) DEPTH (FT) 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING REMARKS: 7.625 14969.0 6.750 CIRCULATION STARTED: 14:15 - STOPPED: 16:30 28-OCT-91 PIPE CONVEYED LOGGING SYSTEM - DID NOT TAG TD DUE TO THIS REASON. DEPTH CONTROL WAS THROUGH PIPE TALLY. TENSION CURVE IS NOT REPRESENTATIVE OF TOOL PULLS. CHT IS ONLY DOWNHOLE PULLING INDICATOR. VARIOUS SPOTS WHERE THERE IS TOOL SPIKING DUE TO PIPE CONNECTIONS ARE LABELED ON THE PASSES. PAD CALIPER DID NOT FUNCTION. PE REPEATABILITY VARIES DUE TO 3.7% BARITE CONTENT IN MUD. VOLUME = ANNULAR VOLUME (4.5" SUBTRACTED) 1 TICK= 10 FT3 TARGET LOC: 650' FNL & 1175' FWL SEC: 18 TWN: liN RGE: 16E U.M. $ **** FILE HEADER **** .001 1024 ONE CN : WN : FN : COUN : STAT : DEPTH PER FRAME Tape depth ID: F 19 Curves: Name Tool 1 CAL CAL 2 CHT 3 CNC 2418 4 CR2 ZDL 5 GR GR 6 K SL 7 KTH SL 8 LSN 2418 9 PE ZDL 10 PORZ ZDL 11 RB 1016 12 RILD DIFL 13 RILM DIFL 14 SSN 2418 15 TH SL 16 TTEN 17 U SL 18 ZCOR ZDL 19 ZDEN ZDL 14963.000 0.1318254E+22 -4036.942 -3927.562 ARCO ALASKA, INC L4-12 LISBURNE NORTH SLOPE ALASKA Code Samples Units Size API API API API Log Crv Crv Length Typ Typ Cls Mod 68 1 IN 68 1 LB 68 1 PU-S 68 1 IN 68 1 GAPI 68 1 PCT 68 1 GAPI 68 1 CPS 68 1 BN/E 68 1 PU-S 68 1 DEG 68 1 OHMM 68 1 OHMM 68 1 CPS 68 1 PPM 68 1 LB 68 1 PPM 68 1 G/C3 68 1 G/C3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 30 085 93 6 4 94 017 77 6 4 86 720 65 6 4 24 115 90 6 4 21 990 60 6 4 37 159 39 6 4 45 226 21 6 4 27 466 87 5 4 76 731 33 1 4 46 370 25 1 4 61 678 46 6 4 04 903 06 0 4 06 213 78 0 4 28 122 23 5 4 95 248 10 1 4 94 017 77 6 4 26 320 10 1 4 09 884 61 1 4 52 443 33 1 0.1169453E+21 0.1545429E+10 48388.48 593.6997 -296.8499 0.1093951E+26 -0.2595697E+17 0.4463756E+18 76 -0.1094256E+17 0.1157545E+23 0.5845937E+25 -0.9155234E+16 0.5722205E+14 -0.8579674E+16 0.6578786E+11 -0.2906952E+17 14913.000 0.0000000E+00 36.42046 -9997.996 4.999500 -9997.996 195.0364 2543.126 635.2114 0.0000000E+00 50.94794 -9997.996 -14.99850 0.0000000E+00 42.30457 -0.7308948E-01 3.699630 2.434902 0.0000000E+00 2.086940 14863.000 16.16373 7.205425 1.519107 6.919690 0.7702231E-01 190.4288 2577.030 692.3186 5.002970 67.44594 1.069429 6.024650 354.1724 83.52884 0.6101935E-03 3.628827 5.393847 375.0364 2.586517 14813.000 6.850431 570.3501 4.338883 3.628827 27 '24240 6.058852 2. 175292 14763.000 19.38185 8.094557 0.8111836 14713.000 28.45534 20.96750 0.7801080 14663.000 20.30080 4.319938 0.9733118 14613.000 15.70902 4.606112 0.8989820 14563.000 8.852329 9.836475 0.2780886 14513.000 17.10451 12.31160 0.8912190 14463.000 15.53186 7.688335 0.5199832 14413.000 86.42676 8.293741 6.837075 14363.000 15.01414 7.342509 0.1763383 0.2951058 193.5405 2122.016 6.933841 0.1150796 195.4964 2237.065 6.709022 0.3245322 192.9067 2278.569 6.778573 0.1811361 197.1291 2717.760 7.002910 0.1079284 196.1827 2346.419 7.043663 0.1202983 195.8155 2537.224 7.467287 0.2606947 201.5021 2268.859 7.254131 0.1306840 191.5433 2222.200 7.121095 1.506198 201.6594 2115.947 8.192335 0.9016252E-01 201.4847 2291.536 13.75028 147.2383 0.9441826 512.1135 13.30448 112.0115 1.067156 620.7883 18.44211 79.08856 1.420321 689.5281 12.08447 9863.105 0.7505810 574.0283 6.060108 219.3612 0.4345603 528.0652 2.538871 93.32063 0.3944668 573.7422 12.35781 147.2791 0.4186683 549.3254 4.413139 104.6233 0.8207846 524.2578 27.87439 63.18851 1.671905 457.8057 8.009214 153.0527 0.9826082 452.0957 111.1098 0.1980723E-01 12.68416 213.7453 177.3440 0.3994889E-01 30.25810 95.72470 67.95435 0.1787174E-01 4.139140 492.3611 9063.730 0.1554731E-01 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6.990149 0.3822098 197.0311 2025.177 6.941122 0.5077212 202.7607 1168.778 7.027292 0.3796540 199.6452 1157.208 7.580684 0.2969157 198.0406 576.4468 7.504841 0.1320987 199.8943 568.2825 7.356345 131.5917 0.8678256 535.4893 13.54346 125.1038 1.078254 527.2695 18.42509 91.01784 1.026241 522.6960 15.63148 98.78381 0.8422259 483.4912 17.60228 64.95190 0.7802334 491.1331 17.13719 76.50128 0.5392263 530.2849 20.32812 81.42429 0.9595495 565.1414 17.65894 70.66376 1.316674 601.7136 11.34693 72.10318 0.6963376 639.3013 11.50712 82.43694 1.167411 489.3811 242.7253 -0.6700948E-02 4.574674 415.4304 237.7054 -0.3823842E-02 3.730039 465.7734 109.6771 0.6279007E-03 5.555729 369.6233 73.31758 -0.2320329E-01 9.763376 258.2065 60.81403 0.3864364E-01 6.666536 356.8933 53.18912 -0.6188214E-02 9.306168 250.5702 70.10974 0.1206218E-01 7.412197 321.9290 73.31451 -0.2560141E-02 4.368152 424.8125 74.78543 -0.3486770E-02 3.772986 419.8928 101.3783 -0.2730463E-03 5.688922 444.7026 2.601974 3.628827 6.021588 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12363.000 195.9714 7.429400 4.349076 6.910341 0.9841678 0.0000000E+00 999.8997 -499.9497 0.0000000E+00 0.1999800 12.01608 71.29832 42.60638 0.1999800 -0.3856317 3.628827 15.29667 141.3691 2.582686 12313.000 4.999500 -499.9497 -14.99850 3.699630 132~.789~ 41.51631 9.335356 0.9726441 0.0000000E+00 0.0000000E+00 0.1999800 999.8997 5.260606 0.0000000E+00 0.1999800 -0.9999007E-01 1.999800 0.0000000E+00 1.999800 DATA RECORD (TYPE# 0 ) Total Data Records: 443 966 BYTES * Tape File Start Depth = 14963.000000 Tape File End Depth = 12307.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code' 68 106261 datums Tape Subfile: 2 499 records... Minimum record length: Maximum record length: 62 bytes 966 bytes Tape Subfile 3 is type: LIS FILE HEADER **** .002 1024 CN : WN : FN : COUN : STAT : ONE DEPTH PER FRAME Tape depth ID: F 19 Curves: ARCO ALASKA,INC L4-12 LISBURNE NORTH SLOPE ALASKA Name Tool Code 1 CAL CAL 68 2 CHT 68 3 CNC 2418 68 4 CR2 ZDL 68 5 GR GR 68 6 K SL 68 7 KTH SL 68 8 LSN 2418 68 9 PE ZDL 68 10 PORZ ZDL 68 11 RB 1016 68 12 RILD DIFL 68 13 RILM DIFL 68 14 SSN 2418 68 15 TH SL 68 16 TTEN 68 17 U SL 68 18 ZCOR ZDL 68 19 ZDEN ZDL 68 Samples Units 1 IN 1 LB 1 PU-S 1 IN 1 GAPI 1 PCT 1 GAPI 1 CPS 1 BN/E 1 PU-S 1 DEG 1 OHMM 1 OHMM 1 CPS 1 PPM 1 LB 1 PPM 1 G/C3 1 G/C3 14900.000 0.0000000E+00 41.52047 0.0000000E+00 5.0O0OO0 0.0000000E+00 0.0000000E+00 4500.000 Size Length API API API API Log Crv Crv Typ Typ Cls Mod 4 30 085 93 6 4 94 017 77 6 4 86 720 65 6 4 24 115 90 6 4 21 990 60 6 4 37 159 39 6 4 45 226 21 6 4 27 466 87 5 4 76 731 33 1 4 46 370 25 1 4 61 678 46 6 4 04 903 06 0 4 06 213 78 0 4 28 122 23 5 4 95 248 10 1 4 94 017 77 6 4 26 320 10 1 4 09 884 61 1 4 52 443 33 1 -500.0000 0.0000000E+00 0.2000000 -5.000000 76 -15.00000 0.0000000E+00 0.2000000 -0.1000000 3.700000 2.000000 0.0000000E+00 2.000000 14850.000 0.0000000E+00 41.52047 0.0000000E+00 5.000000 0.0000000E+00 193.4129 5843.809 692.6912 0.0000000E+00 332.3469 -5.000000 -15.00000 0.0000000E+00 111.1857 -0.1000000 3.700000 2.000000 0.0000000E+00 2.000000 14800.000 27.49536 2.374203 0.0000000E+00 7.006364 0.2031301 194.2241 6329.656 566.9644 11.13178 339.8091 1.710093 14750.000 10.36017 12.38371 0.0000000E+00 6.854356 0.8664531E-01 193.6768 6468.609 534.8911 3.938052 329.6709 0.4350503 14700.000 15.19051 13.46817 0.1734885E-01 6.892358 0.1440837 0.0000000E+00 4500.000 -500.0000 8.118664 0.2000000 0.7221864 14650.000 19.05492 41.52047 0.5883907 5.000000 0.2535246 0.0000000E+00 4500.000 -500.0000 13.94321 0.2000000 0.5809484 DATA RECORD (TYPE# 0 ) Total Data Records: 45 966 BYTES * Tape File Start Depth = 14900.000000 Tape File End Depth = 14636.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code- 68 10581 datums Tape Subfile: 3 49 records... Minimum record length: Maximum record length: 62 bytes 966 bytes 2.137992 630.2598 111.1628 -0.8966065E-04 9.264818 269.3967 110.1226 -0.5873963E-02 14.45567 187.5744 0.2000000 0.3151909E-02 -15.00000 0.0000000E+00 0.2000000 -0.1000000 3.629192 5.664333 512.6917 2.669401 3.629192 5.593082 333.2327 2.498239 3.629192 5.388219 281.7800 2.479694 3.700000 2.000000 0.0000000E+00 2.000000 Tape Subfile 4 is type: **** FILE HEADER **** .003 LIS 1024 CN : WN : FN : COUN : STAT : ONE DEPTH PER FRAME Tape depth ID: F 20 Curves: Name Tool 1 CAL CAL 2 CHT 3 CN 2418 4 CNC 2418 5 CR2 ZDL 6 GR GR 7 K SL 8 KTH SL 9 LSN 2418 10 PE ZDL 11 RB 1016 12 RILD DIFL 13 RILM DIFL 14 SPD 15 SSN 2418 16 TH SL 17 TTEN 18 U SL 19 ZCOR ZDL 20 ZDEN ZDL 14963.000 3.700000 2.000000 0.0000000E+00 2.000000 14950.500 3.700000 2.000000 0.0000000E+00 2.000000 ARCO ALASKA INCORPORATED L4 - 12 Code Samples Units Size 68 1 IN 4 68 1 LB 4 68 1 PU-L 4 68 1 PU-S 4 68 1 IN 4 68 1 GAPI 4 68 1 PCT 4 68 1 GAPI 4 68 1 CPS 4 68 1 BN/E 4 68 1 DEG 4 68 1 OHMM 4 68 1 OHMM 4 68 1 F/MN 4 68 1 CPS 4 68 1 PPM 4 68 1 LB 4 68 1 PPM 4 68 1 G/C3 4 68 1 G/C3 4 5.OO0O0O 0.0000000E+00 0.0000000E+O0 -999.2500 -5O0.O000 -999.2500 0.2000000 1000.000 5.000000 0.0000000E+00 191.7676 -999.2500 567.8069 -999.2500 0.2000000 2695.373 API API API API Log Crv Crv Length Typ Typ Cls Mod 4 30 085 93 6 4 94 017 77 6 4 31 149 96 6 4 86 720 65 6 4 24 115 90 6 4 21 990 60 6 4 37 159 39 6 4 45 226 21 6 4 27 466 87 5 4 76 731 33 1 4 61 678 46 6 4 04 903 06 0 4 06 213 78 0 4 59 553 77 6 4 28 122 23 5 4 95 248 10 1 4 94 017 77 6 4 26 320 10 1 4 09 884 61 1 4 52 443 33 1 8O -15.00000 0.0000000E+00 0.2000000 -999.2500 -15.00000 0.0000000E+00 0.0000000E+00 -0.1000000 -15.00000 0.0000000E+00 0.2000000 -999.2500 -15.00000 0.0000000E+00 10.88970 -0.1000000 14938.000 3.700000 2.000000 O.O000000E+O0 2.000000 5.000000 0.O000000E+00 191.5385 -999.2500 581.6492 -999.2500 85.80434 2950.848 -15.00000 0.0000000E+00 117.7146 -999.2500 -15.00000 0.0000000E+00 9.999001 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390.8948 2.614710 7.538395 24.84380 195.1544 0.2681720 567.3579 0.2130681 386.8850 2909.962 5.874989 18.17741 10000.00 1.187669 6.213633 352.0994 8.999102 -0.1203238E-01 13363.000 3.629192 5.456015 403.4263 2.634054 7.120371 26.55074 197.4356 0.2161254 552.7854 0.7499999E-01 160.6432 2978.057 4.014081 9.095217 262.1892 1.638177 4.655195 408.3276 8.999102 -0.2786621E-02 13350.500 3.629192 4.276794 399.1096 2.607430 7.082369 17.97679 196.9001 0.7445304 599.4812 0.1841459 166.8636 2702.292 4.727479 11.52839 365.1279 1.167720 5.463903 385.2441 8.999102 0.1012248 13338.000 3.629192 5.595787 407.9612 2.618900 7.196375 16.08749 194.5062 0.7171838 559.5330 0.9393150E-01 151.9240 1976.372 4.333259 5.384605 282.1992 0.8827298 4.929014 404.0566 8.999102 -0.1940003E-03 13325.500 3.629192 5.981032 390.7173 2.598902 7.158373 19.02834 196.2512 0.9427187 616.5610 0.1816031 139.0653 2624.838 4.185745 11.70726 248.1074 0.4167966 4.805717 390.8384 9.999001 -0.2709656E-02 13313.000 3.629192 5.876277 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412.5532 2.591589 7.272380 19.85123 198.4272 0.7171838 508.9883 0.2342086 127.1934 1288.997 3.893947 19.85123 220.2197 0.6296583 4.391176 421.0776 9.999001 -0.4295379E-02 13238.000 3.629192 5.825105 434.8923 2.609108 7.158373 19.97252 196.1950 0.7171838 575.4912 0.2052024 117.2002 2390.522 3.703855 13.69857 192.6020 0.8917494 4.286576 449.9119 9.999001 -0.4993226E-02 13225.500 3.629192 5.241794 394.7271 2.622181 7.234377 19.77106 197.8959 0.7171838 571.3701 0.2396649 99.08566 1110.976 3.171527 16.23097 133.6897 0.5751444 3.651862 424.8333 7.999201 -0.1628570E-02 13213.000 3.629192 5.420970 433.4211 2.634106 7.158373 20.96001 202.4719 0.0000000E+00 530.7791 0.1089804 90.58839 1802.802 3.130400 18.54135 108.9524 0.9350263 3.668199 467.9595 8.763300 0.3256299E-02 13200.500 3.629192 5.201940 306.3164 2.580735 7.196375 33.73241 200.7133 0.9782989 539.0889 0.3021068 123.8239 2146.182 7.016669 29.22755 162.1063 1.967205 7.799408 259.4016 6.999300 0.2449689E-01 13188.000 3.629192 5.548133 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93 6 4 94 017 77 6 4 31 149 96 6 4 86 720 65 6 4 24 115 90 6 4 21 990 60 6 4 37 159 39 6 4 45 226 21 6 4 27 466 87 5 4 76 731 33 1 4 61 678 46 6 4 04 903 06 0 4 06 213 78 0 4 59 553 77 6 4 28 122 23 5 4 95 248 10 1 4 94 017 77 6 4 26 320 10 1 4 09 884 61 1 4 52 443 33 1 80 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 12935.500 5.300000 -500.0000 -15.00000 -15.00000 3.9'9999~ 2.000000 0.0000000~+00 2.000000 0.0000000E+00 0.0000000E+00 -999.2500 -999.2500 0.2000000 2000.000 0.0000000E+00 0.2000000 -999.2500 0.0000000E+00 0.0000000E+00 -0.1000000 12923.000 3.999999 2.000000 0.0000000E+00 2.O00000 5.300000 0.0000000E+00 196.1381 -999.2500 579.2080 -999.2500 0.2000000 1199.509 -15.00000 0.0000000E+00 89.58591 -999.2500 -15.00000 0.0000000E+00 6.999300 -0.1000000 12910.500 3.999999 2.000000 0.0000000E+00 2.000000 5.300000 0.0000000E+00 198.4136 -999.2500 524.9265 -999.2500 72.21326 1032.003 -15.00000 0.0000000E+00 89.03076 -999.2500 -15.00000 0.0000000E+00 6.999300 -0.1000000 12898.000 3.999999 2.000000 0.0000000E+00 2.000000 5.300000 0.0000000E+00 199.5121 -999.2500 545.5937 -999.2500 68.74921 1049.050 -15.00000 0.0000000E+00 80.90862 -999.2500 -15.00000 0.0000000E+00 6.999300 -0.1000000 12885.500 3.629191 7.356873 0.0000000E+00 2.703461 7.690403 0.0000000E+00 205.7947 -999.2500 510.2690 -999.2500 79.04834 1303.837 -15.00000 0.0000000E+00 89.16089 -999.2500 -15.00000 0.0000000E+00 6.999300 0.3020018E-01 12873.000 3.629191 6.550802 0.0000000E+00 2.630700 7.538395 0.0000000E+00 203.6227 -999.2500 573.2336 -999.2500 76.72142 1114.454 -15.00000 0.0000000E+00 94.98141 -999.2500 -15.00000 0.0000000E+00 6.999300 -0.6069548E-02 12860.500 3.629191 6.497758 486.8359 2.621279 7.462390' 24.29631 198.9282 0.7618793 648.9885 0.9069157E-01 78.30156 1578.995 2.858180 3. 194148 96.96700 1.624830 3.371349 537.0142 7.999201 0.1272437E-01 12848.000 3.629191 8.883629 427.4397 2.671016 8.602455 27.52869 198.6176 2.050105 572.2986 0.9358448E-01 85.78262 1327.536 3.500040 13.00476 106.8482 1.468966 3.198623 448.8081 7.999201 -0.1611908E-02 12835.500 3.629191 6.666804 423.4172 2.696313 8.184431 24.70451 215.6327 1.705481 599.3101 0.7499999E-01 192.2875 1238.633 2.764763 6.582381 213.5423 2.125512 2.758508 470.5930 7.780800 -0.3888336E-02 12823.000 3.629191 6.613534 442.4929 2.647415 7.956418 26.79988 218.3108 0.2161254 596.2217 0.2790353 172.7393 1110.534 3.247966 12.76812 199.5128 1.360235 3.407246 473.4663 6.999300 -0.7006623E-02 12810.500 7.462390 604.2019 2.684706 3.184150 12 12 12 12 3.629191 5.821373 435.5359 2.638708 798.000 3.629191 5.856475 401.7029 2.665246 785.500 3.629191 6.734667 437.1086 2.672583 773.000 3.629191 5.320027 351.1870 2.639553 760.500 3.629191 4.184010 349.7297 2.661959 12748.000 3.629191 4.484450 309.8354 2.603484 127 3 6 12 12 12 35.500 .629191 .432437 332.7163 2.621813 723.000 3.629191 6.219329 293.0823 2.480216 710.500 3.629191 5.219164 263.6709 2.405442 698.000 3.629191 5.556738 295.6787 2.420104 25.12888 208.9283 1.558750 7.842412 29.53293 199.3430 0.8906726 8.868469 36.00974 207.4777 0.1223241 9.058481 39.33923 212.2663 0.7848150 7.348384 31.00642 202.7020 1.677839 7.462390 25.19464 197.0924 0.5010583 8.070425 18.81476 199.5366 1.814279 7.576397 15.71190 201.1528 0.5184072 7.044367 16.55551 206.8150 1.297635 6.968362 15.05723 213.7112 0.3211008 0.1775192 126.3978 1288.531 484.0598 0.1018888 158.5473 1092.664 532.3574 0.1543299 175.0687 1533.409 478.9797 0.4790757 111.8096 1398.086 429.1641 0.3486935 114.6965 1096.347 443.5488 0.8894187E-01 184.9564 1366.109 404.8264 0.2515885 132.1947 995.5786 477.3743 0.1628596 130.4430 1519.156 496.4624 0.1221974 135.8787 1271.212 497.7424 0.9309876E-01 139.8122 917.4329 21.58543 141. 3340 1.017457 2.497012 10.24104 147.1704 1.754316 3.298996 7.460350 167.6860 2.645740 7.164124 12.01383 97.75798 1.981815 10.25792 26.17128 100.3983 1.124880 14.26416 21.62653 388.3979 1.809427 8.446796 10.74907 195.7145 0.4735947 13.60437 8.647343 236.5984 0.6064495 16.15350 13.81326 302.9795 0.2993723 14.42677 13.87924 306.9670 1.124454 487.2375 6.999300 0.4273262E-02 2.715296 456.4656 7.763400 0.3106224E-01 2.837454 465.8984 8.889900 0.5352408E-01 6.287201 295.1689 8.999102 0.2033251E-01 11.47981 255.6353 9.108301 -0.6113586E-03 15.54591 196.2634 6.112801 0.3683513E-01 8.574913 262.8772 6.999300 0.2034710E-01 14. 63918 189.6588 9.999001 0. 4006114E-02 18.42749 157.7327 8.999102 -0.1512210E-01 16.70673 186.3342 8.999102 -0.1533633E-01 12685.500 7.044367 424.1016 11.46050 13.29965 3.629191 6.047285 321.3005 2.482525 14.84351 210.3027 0.4322509 0.1633678 134.2100 1431.826 8.696150 303.7341 0.3711324 224.1500 10.88970 -0.8630037E-02 12 673.000 3.629191 6.465931 277.1714 2.351894 7.424388 17.55754 194.8700 1.350564 535.3147 0.2621388 140.1542 1104.444 15.98851 2.524414 294.2322 0.3887781 17.44069 166.6035 9.999001 -0.8935515E-02 12 660.500 3.629191 8.151999 411.1604 2.623166 8.222433 19.66338 197.1562 0.9782989 527.1575 0.2344757 131.8094 1059.533 5.077756 15.86857 274.5339 1.333132 5.035483 388.2502 8.999102 -0.1018997E-01 12 648.000 3.629191 6.675254 271.0808 2.525095 8.260435 13.45658 199.1544 0.1926017 601.8525 0.7987756E-01 124.3274 949.8567 11.03571 8.307924 196.6959 1.256195 10.91460 192.1791 7.763400 -0.1800354E-02 12 635.500 3.629191 6.215721 309.7256 2.484564 7.348384 12.95881 199.7340 0.5886848 511.1426 0.2184540 104.6462 1018.251 11.83912 1.972352 218.8382 0.5692737 13.17639 213.0764 7.999201 -0.4865479E-02 12 623.000 3.629191 7.873285 330.2009 2.532546 7.234377 17.37329 0.0000000E+00 0.9956477 -500.0000 0.1377007 0.2000000 2000.000 7.918804 0.0000000E+00 147.6758 0.8524303 9.113926 267.4124 0.0000000E+00 -0.3374176E-02 12 610.500 3.629191 8.119577 389.2275 2.641454 7.272380 35.11636 0.0000000E+00 1.763996 -500.O000 0.2254084 0.2000000 2000.000 5.884333 0.0000000E+00 0.2000000 2.026036 6.841567 350.4114 0.0000000E+00 -0.1029511E-02 12598.000 3.629191 5.810525 324.2119 2.520638 7.006364 21.39354 0.0000000E+00 1.121795 -500.0000 0.1502077 0.2000000 2000.000 8.135595 0.0000000E+00 0.2000000 0.9797516 9.674435 259.8818 0.0000000E+00 0.3195461E-01 12 585.500 3.629191 2.000000 291.4490 2.000000 6.778351 20.61382 0.0000000E+00 0.1926017 -500.0000 0.2210184 0.2000000 2000.000 9.742882 0.0000000E+00 0.2000000 0.6989187 11.83801 217.5846 0.0000000E+00 -0.1000000 12 573.000 3.999999 2.000000 246.0355 2.000000 5.300000 16.30188 0.0000000E+00 1.011232 -500.0000 0.8832812E-01 0.2000000 2000.000 13.44368 0.0000000E+00 0.2000000 1.083278 -15.00000 160.0633 0.0000000E+00 -0.1000000 12560.500 5.300000 -500.0000 -15.00000 -15.00000 3.999999 2.000000 0.0000000E+00 2.000000 26.85258 0.0000000E+00 2.334743 * DATA RECORD (TYPE# 0) Total Data Records: 262 0.9685212E-01 0.2000000 2000.000 1014 BYTES * 0.0000000E+00 0.2000000 0.9337260 0.0000000E+00 0.0000000E+00 -0.1000000 Tape File Start Depth = 12948.000000 Tape File End Depth = 12556.000000 Tape File Level Spacing = 0.125000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 76459 datums Tape Subfile: 5 267 records... Minimum record length: 44 bytes Maximum record length: 1014 bytes Tape Subfile 6 is type: LIS **** TAPE TRAILER **** 9z/ Zl 7 Ol **** REEL TRAILER **** 92/ 1/ 7 01 Tape Subfile: 6 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Mon 6 JAN 92 3:31p Elapsed execution time = 2 minutes, 17.0 seconds. SYSTEM RETURN CODE = 0 LIS VERIFIC/~TION LISTIN~ PRUDHOE BAY DRILLIN(~ )X DEC l$ 199] ~aska Oil & Gas Cons. Commission Anchorage I- EL EIVED Alaska 0il & Gas Cons,, Copyright 1987,1988,1989,1990,1991 By WESTERN ATLAS INTERNATIONAL, INC. · All rights reserved. PROGRAM: TAPESCAN REVISION' Start of execution: Wed 20 NOV 91 1:50p 2.53 ~ = = E C H O I N G I N PARAMETERS INPUT PARAMETER FILE: TAPESCAN.INP 1 2 3 4 5 6 7 123456789012345678901234567890123456789012345678901234567890123456789012 1 AUTOCURV = 1 , ! Automatic Curve renaming: 0=OFF, I=ON 2 AUTOFILE = 1 , ! Automatic FILE= generation' 0=OFF, I=ON 3 COMMENTS = 1 , ! Decode LIS Comment records: 0=OFF, I=ON 4 INFORECS = 1 , ! Decode LIS Information records: 0=NO, I=YES 5 LISTMETHOD = 0 , ! Listing Method: 0=depth units 1=tape units 6 LISTFREQ = 25, ! Listing Frequency: Every n units 7 LISTMAX = 0 , ! Listing Maximum (0=no limit, value=list limit) 8 STATS = 0 , !Statistics generation: 0=OFF, I=ON 9 FORCETYP = 0 , ! (I=BIT,2=LIS ... thru 35=Array Accoustic) (see table) 10 WRITEASCII = 1 , ! If 1, all ascii files will be written (file0001.dat,etc.) 11 WRITETAP = 1 , ! Write Tape-Image File: 0=NO, I=YES 12 SPLITLIS = 1 , ! If 1 and WRITETAP on, split LIS logical files to physical 13 SUBFILES = /0/, ! Tape Subfile write selection 0NRITETAP must be on) 14 INTERPOLATE ='YES' ! Set up for TAPE2WDS to interpolate datums ("YES'or'NO') 15 END T ! = = U S E R I N P U T P A R A M T R -- AUTOCURV = 1 , AUTOFILE = I , COMMENTS = 1 , - INFORECS = 1 , LISTMETHOD = 0 , LISTFREQ = 25, LISTMAX = 0, STATS = 0, FORCETYP = 0 , WRITEASCll = 1 , WRITETAP = I , SPLITLIS - 1 SUBFILES = /0/, INTERPOLATE ='YES' END · - !-- PROCESSING-INTERVAL FROM 0.000 TO 0.000 ............. ! !-- CONSTANT PARAMETERS AUTOCURV= 1.00000 AUTOFILE= 1.00000 COMMENTS= 1.00000 FORCETYP= 0.000000E+00 INFORECS= 1.00000 LiSTFREQ= 25.0000 LISTMAX = 0.000000E + 00 LISTMETH = 0.000000E + 00 SELl:TEST = 0.000000E + 00 SPLITLIS= 1.00000 STATS =0.000000E+00 WRITEASC= 1.00000 WRITETAP= 1.00000 dpcoef = 1.00000 dpcte = 1.00000 drlength = 0.000000E + 00 listwave = 0.000000E + 00 maxrecln = 0.000000E + 00 minrecln-- 0. 000000 E + 00 nsamples= 0.000000E+00 numcurvs= 0.000000E+00 numdatar = 0.000000E+00 numrecfl = 0.000000E+00 tfendep = 0.000000E +00 tflevsp = 0.000000E +00 tfstdep = 0.000000E + 00 wcrbot = 0.000000E + 00 wcrlevsp = 0.000000E+ 00 wcrtop = 0.000000E + 00 !-- ARRAY PARAMETERS .............................................. SUBFILES( 1) = 0.000000E+00 SUBFILES( 3) =-9999.00 SUBFILES( 5) =-9999.00 SUBFILES( 7) ---9999.00 SUBFILES( 9) :-9999.00 SUBFILES(11) = -9999.00 SUBFILES(13) = -9999.00 SUBFILES(15) = -9999.00 SUBFILES(17) = -9999.00 SUBFILES( 19) = -9999.00 SUBFILES(21) = -9999.00 SUBFILES(23) = -9999.00 SUBFILES(25) = -9999.00 SUBFILES(27) = -9999.00 SUBFILES(2) =-9999.00 SUBFILES( 4) =-9999.00 SUBFILES( 6) =-9999.00 SUBFILES(8) =-9999.00 SUBFILES(10) = -9999.00 SUBFILES(12) -- -9999.00 SUBFILES(14) =-9999.00 SUBFILES(16) = -9999.00 SUBFILES(18) = -9999.00 SUBFILES(20) = -9999.00 SUBFILES(22) = -9999.00 SUBFILES(24) = -9999.00 SUBFILES(26) = -9999.00 SUBFILES(28) - -9999.00 SUBFILES(29) = -9999.00 SUBFILES(31) = -9999.O0 -- SUBFILES(33) = -9999.00 SUBFILES(35) = -9999.00 SUBFILES(37) = -9999.O0 -' SUBFILES(39) - -9999.00 SUBFILES(41) = -9999.00 SUBFILES(43) = -9999.00 SUBFILES(45) = -9999.00 SUBFILES(47) - -9999.00 SUBFILES(49) = -9999.00 SUBFILES(51) = -9999.00 SUBFiLES(53) = -9999,00 __ SUBFILES(55) = -9999.00 SUBFILES(57) = -9999.00 SUBFILES(59) = -9999.00 _ SUBFILES(61) = -9999.00 SUBFILES(63) : -9999.00 SUBFILES(65) : -9999.00 _ SUBFILES(67) : -9999.00 SUBFILES(69) = -9999.00 SUBFILES(71) = -9999.00 -- SUBFILES(73) : -9999.00 SUBFILES(75) : -9999.00 SUBFILES(77) = -9999.00 -- SUBFILES(79) = -9999.00 SUBFILES(81) : -9999.00 SUBFILES(83) = -9999.00 -- SUBFILES(85) = -9999.00 SUBFILES(87) : -9999.00 SUBFILES(89) = -9999.00 - SUBFILES(91) = -9999.00 SUBFILES(93) : -9999.00 SUBFILES(95) = -9999.00 -- SUBFILES(97) = -9999.00 SUBFILES(99) = -9999.00 SUBFILES(101) = -9999.00 -- SUBFILES(103) = -9999.00 SUBFILES(105) = -9999.00 SUBFILES(107) = -9999.00 -- SUBFILES(109) : -9999.00 SUBFILES(111) = -9999.00 SUBFILES(113) = -9999.00 SUBFILES(115) : -9999.00 SUBFILES(117) = -9999.00 _ SUBFILES(119) : -9999.00 SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFiLES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUB. FILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( SUBFILES( 30): -9999.00 32) = -9999.O0 34) = -9999.00 36) -= -9999.00 38) = -9999.O0 4O) = -9999.OO 42) = -9999.OO 44) = -9999.OO 46) = -9999.OO 48) = -9999.00 5O) = -9999.OO 52) = -9999.OO 54) = -9999.OO 56) = -9999.00 58) = -9999.OO 60) = -9999.00 62) = -9999.00 64) = -9999.O0 66) = -9999.OO 68) = -9999.00 7O) = -9999.OO 72) = -9999.O0 74) = -9999.00 76) = -9999.00 78) = -9999.00 80) = -9999.00 82) = -9999.00 84) = -9999.OO 86) = -9999.00 88) = -9999.00 90) = -9999.00 92) = -9999.O0 94) = -9999.00 96) = -9999.00 SUBFILES(98): -9999.00 SUBFILES(IO0) = -9999.00 SUBFILES(102) = -9999.00 SUBFILES(104) = -9999.00 SUBFILES(106) = -9999.00 SUBFILES(108) = -9999.00 SUBFILES(110) = -9999.00 SUBFILES(112) = -9999.00 SUBFILES(114) = -9999.00 SUBFILES(116) = -9999.00 SUBFILES(118) = -9999.00 SUBFILES(120) = -9999.00 RECEIVED DEC 1 ~ 1991 Alaska Oil & G~S Cons. 8ommissio~ Anchorage SUBFILES(121) SUBFILES(123) SUBFILES(125) SUBFILES(127) = -9999.00 = -9999.00 = -999~.00 = -9999.00 !-- STRING PARAMETERS INTERPOL= YES SUBFILES(122) SUBFILES(124) SUBFILES(126) SUBFILES(128) = -9999.00 = -9999.00 = -9999.00 = -9999.00 -- Input Tape Device, LU (1) is: TAPEC: Output Tape-Image file, LU (2) is: J:\DATA\TAK\848.TAP (Output Tape-Image file will be created) Listing Method ("LISTMETH") = 0, Depth Unit oriented listing. Listing Frequency ("LiSTFREQ") is every ( 25) units of Depth. Listing output limiting ¢' ~o-r~A^,~ .. t.-,~, ,v,,-,,,j not .enabled. (to enable list limiting set LlSTMAX positive) Data Statistics reporting ("STATS") has not been enabled. (Specify STATS= 1 to enable this feature) Automatic curve renaming is enabled. (This is the program default, AUTOCURV= 1) (Specify AUTOCURV=0 to disable this feature) Automatic "FILE =n" card generation has been enabled by user input (AUTOFILE = 1). LIS comment record decoding (COMMENTS= 1) has been enabled by user input. LIS information record decoding (INFORECS= 1) has been enabled by user input. User has enabled the WRITEASC option... (all ASCII subfiles will be written out to FILEnnnn. DAT) Tape Subtile 1 is type: LIS · **** REEL HEADER MWD 91/11/20 848 01 DATA CONSISTS OF MERGED EDITED MWD. **** TAPE HEADER **** MWD 848 01 DATA CONSISTS OF MERGED EDITED MWD. Tape Subtile: 1 Minimum record length: Maximum record length: 2 records,.. 132 bytes 132 bytes Tape Subtile 2 is type: LIS LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 TAPE HEADER PRUDHOE BAY UNIT MWD/MAD LOGS WELL NAME: APl NUMBER: OPERA/QR: LOGGING COMPANY: TAPE CREATION DATE: dOB DATA BIT RUN1 L4-12 50-029-22216 PRUDHOE BAY DRILLING TELECO OILFIELD SERVICES 04 NOV 91 BIT RUN2 BIT RUN3 JOB NUMBER: 848 848 LOGGING ENGINEER: R. GEHRES OPERATOR WITNESS: J. HABERTHUR BIT RUN4 BIT RUN5 848 S. BURKHARDT J. HABERTHUR BIT RUN6 R. GEHRES J. CARLILE JOB NUMBER: 848 LOGGING ENGINEER: B. BANNAN -' OPERATOR WITNESS: J. CARLILE SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION(F-I' FROM MSL 0) _. KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: -- # WELL CASING RECORD 24 11N 15E 2132 2117 56.00 56.00 19.00 OPEN HOLE CASING DRILLER'S BIT SIZE (IN) SIZE (IN) DEPTH (F-I') 1ST STRING 16.000 13.375 3855.0 2ND STRING 12.250 9.625 10912.0 3RD STRING 8.500 PRODUCTION STRING REMARKS: NO RELOGS OR MAD PASSES OVER THE COURSE OF'THIS WELL. ALL CURVES ENDING IN "S" (EXCLUDING ROPS AND WBCS) HAVE BEEN SMOOTHED USING THE WEAK WDS FILTER, NO DEPTH SHIFTING PERFORMED ON THIS TAPE. $ **** FILE HEADER_ **** MWD .001 1024 LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: 0.2500 FILE SUMMARY PBU TOOL CODE START DEPTH MWD 9792.0 12590.0 $ BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) StOP DEPTH ......... EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH $ MERGED DATA SOURCE PBU TOOL CODE BIT RUN NO MERGE TOP MERGE BASE $ -- Cf REMARKS: $ -- Cf CN WN -- FN COUN STAT PRUDHOE BAY DRILLING : L4-12 : LISBURNE : NORTH SLOPE :ALASKA * FORMAT RECORD (TYPE# 64) Entry Type(4) Size(1) Repcode(66) Logging direction is down (value = 255) _ Entry Type(12) Size(4) Repcode(68) Null data value is: -999.250000 Entry Type(16) Size(1) Repcode(66) _ Datum Specification Block Sub-type is: Entry Block terminator. Summary of entry'types encountered: 1 2 3 4 5 6 7 8 91011 1213141516 000 1 0000000 1 000 1 Rep Code Count Bytes 68 .6 24 Sum: 6 24 24 fndun a [F ] 1.00000000 3 ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Code Samples Units Size Length 1 GR 2 RA 3 ROP 4 RP 5 FET 6 WOBS 68 1 GAP! 4 4 68 1 OHMM 4 4 68 i FPHR 4 4 68 1 OHMM 4 4 68 1 HR 4 4 68 1 LB 4 4 24 -- ** Routine LEVONE detects data discrepancy: DSB indicates: 1 FRAMES Data Record Length indicates: 36 FRAMES * DATA RECORD (TYPE# 0) Total Data Records: 311 1014 BYTES * Tape File Start, Depth = 9792.000000 Tape File End Depth = 12590.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 13744 datums Tape Subtile: 2 392 records... _ Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape Subfile 3 is type: LIS **** FILE HEADER **** MWD .002 1024 LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 FILE HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 0 DEPTH INCREMENT: 0.2500 # FILE SUMMARY VENDOR TOOL CODE START DEPTH MWD 9788.0 10865.0 $ 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): BOq-FOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BO'I-I'OM) VENDOR TOOL CODE TOOL TYPE STOP DEPTH 05 OCT 91 M1.32 M1.32 MEMORY 0.0 9788,0 10865.0 0 51.9 53.6 TOOL NUMBER MWD $ · DUAL PROPAGATION 1757-53 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT)' 12.250 10912.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM)' FLUID LOSS (C3): DISPERSED 9.60 38.0 9.5 1350 4.5 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: 1.500 MUD CAKE AT MT: 1.700 1.650 0.980 70.0 70.0 70.0 120.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): SANDSTONE 2.65 12.250 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 0.0 2 REMARKS: INTERVAL FROM 9792 TO 9841 FT MD (7220 TO 7250 FT TVD) WAS LOGGED 73.5 HOURS AFTER BEING DRILLED. $ CN . PRUDHOE BAY DRILLING WN : L4-12 FN : LISBURNE COUN NORTH SLOPE STAT :ALASKA LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 DATA FOR THIS FILE CONSISTS OF BIT RUN 10. * FORMAT RECORD (TYPE# 64) Entry Type(4) Size(1) Repcode(66) Logging direction is down (value= 255) Entry Type(12) Size(4) Repcode(68) Null data value is: -999.250000 Entry Type(16) Size(1) Repcode(66) Datum Specification Block Sub-type is: Entry Block terminator. Summary of entry types encountered: 1 2 3 4 5 6 7 8 91011 12 13 14 15 16 0 0 0,1 0 0 0 0 0 0 0 1 0 0 0 1 Rep Code Count Bytes 68 18 72 Sum: 18 72 72 fndun a [F ] 1.00000000 ONE DEPTH PER FRAME Tape depth ID: F 18 Curves: Name Code Samples Units Size Length 72 1 ARCM 68 1 -dB 4 4 2 CAAM 68 1 MMHO 4 4 3 CACM 68 I MMHO 4 4 4 CPAM 68 1 MMHO 4 4 5 CPCM 68 1 MMHO 4 4 6 GRAM 68 1 GAPI 4 4 7 GR 68 1 GAPI 4 4 8 GRCM 68 1 GAPI 4 4 9 PDCM 68 1 DEG 4 4 10 RAAM 68 I OHMM 4 4 11 RA 68 1 OHMM 4 4 12 ROP 68 1 FPHR 4 4 13 RPAM 68 1 OHMM 4 4 14 RP 68 1 OHMM 4 4 15 RPDM 68 1 OHMM 4 4 16 FET 68 1 HR 4 4 17 TCDM 68 1 DEG 4 4 18 WOBS 68 1 LB 4 4 ** Routine £EVONE detects data discrepancy: DSB indicates: 1 FRAMES Data Record Length indicates: 13 FRAMES * DATA RECORD (TYPE# 0) 994 BYTES * Total Data Records: 332 Tape File Start Depth = 9788.000000 Tape File End Depth = 10865.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 11042 datums Tape Subfile' 3 399 records... Minimum record length' Maximum record length: 62 bytes 994 bytes Tape Subtile 4 is type: LIS **** FILE HEADER MWD .003 1024 LIS COMMENT RECORD(s)' 12345678901234567890123456789012345678901234567890123456789012345678901234567890 _ FILE HEADER FILE NUMBER: '3 RAW MWD -- Curves and log header data for each bit run in separate files. BIT RUN NO: 1 DEPTH INCREMENT: 0.2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH MWD 10865.0 $ LOG HEADER DATA DATE LOGGED: -- SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: -- DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (Fl'): TOP LOG INTERVAL (IT): -- BO'FI'OM LOG INTERVAL (FI'): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE 11590.0 08 OCT 91 M1.32 M1.32 MEMORY 0.0 1O865.0 11590.0 0 49.6 51.9 TOOL NUMBER MWD $ DUAL PROPAGATION 644-51 BOREHOLE AND cASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 12.250 10912.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): MIN OBM 9.50 62.0 0.0 44000 4.0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): 0.000 MUD AT MAX CIRCULATING TEMPERATURE: 0.000 MUD FILTRATE AT MT: 0.000 0.0 MUD CAKE AT MT: 0.000 0.0 0~0 0.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): SANDSTONE 2.65 12.250 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 0.0 2 REMARKS: INTERVAL FROM 10865 TO 10879 FT MD (7868 TO 7877 FT TVD) WAS NOT LOGGED DUE TO A CHANGE IN TOOL OFFSET AFTER CASING INTERVAL FROM 10879 TO 10915 FT MD (7877 TO 7900 FT TVD) WAS LOGGED FROM INSIDE CASING. INTERVAL FROM 10879 TO 10918 F-r MD (7877 TO 7901 FT TVD) WAS LOGGED 53.0 HOURS AFTER BEING DRILLED. 9 5/8 INCH CASING WAS SET AT 10912 FT MD (7898 FT TVD) DRILLER'S DEPTH, 10915 FT MD (7900 FT TVD) MWD LOGGER'S DEPTH. $ CN WN FN COUN STAT ' PRUDHOE BAY DRILLING : L4-12 : LISBURNE : NORTH SLOPE ALASKA LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 DATA FOR THIS FILE CONSISTS OF BIT RUN 11. * FORMAT RECORD (TYPE# 64) Entry Type(4) Size(1) Repcode(66) Logging direction is down (value = 255) Entry Type(12) Size(4) Repcode(68) Null data value is: -999.250000 Entry Type(16) Size(1) Repcode(66) Datum Specification.81~:'k Sub-type is: Entry Block terminator. Summary of entry types encountered: 1 2 3 4 5 6 7 8 91011 12 13 14 15 16 000 1 O0 00000 I 000 1 Rep Code Count Bytes 68 18 72 Sum: 18 72 72 fndun a [F ] 1.00000000 ONE DEPTH PER FRAME Tape depth ID: F 18 Curves: Name Code Samples Units Size Length 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ARCM 68 1 -dB 4 4 CAAM 68 1 MMHO 4 4 CACM 68 1 MMHO 4 4 CPAM 68 1 MMHO 4 4 CPCM 68 1 MMHO 4 4 GRAM 68 1 GAPI 4 4 GR 68 1 GAPI 4 4 GRCM 68 1 GAPI 4 4 PDCM 68 1 DEG 4 4 RAAM 68 1 OHMM 4 4 RA 68 I OHMM 4 4 ROP 68 1 FPHR 4 4 RPAM 68 1 OHMM 4 4 RP 68 1 OHMM 4 4 RPDM 68 1 OHMM 4 4 FET 68 1 HR 4 4 TCDM 68 1 DEG 4 4 WOBS 68 1 LB 4 4 72 - ** Routine ~_EVONE detects data discrepancy: DSB indicates: 1 FRAMES -- Data Record Length indicate~s: 13 FRAMES * DATA RECORD (TYPE# 0) Total Data Records: 224 994 BYTES * Tape File Start Depth = 10865.000000 Tape File End Depth = 11590.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** _ LIS representation code decoding summary: Rep Code: 68 21200 datums Tape Subtile: 4 299 records... ._ Minimum record length: Maximum record length' 62 bytes 994 bytes Tape Subtile 5 is type: LIS **** FILE HEADER **** MWD .004 1024 LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 2 DEPTH INCREMENT: 0.2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH MWD 11590.0 12516.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FO' TOP LOG INTERVAL (F-r)' 130'rTOM LOG INTERVAL (F-I'): BIT ROTATING SPEED (RPM)' HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE O9 OCT 91 M1.32 M1.32 MEMORY 0.0 11590.0 12516.0 0 49.6 78.0 TOOL NUMBER MWD, $ DUAL PROPAGATION 644-51 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 12.250 1O912.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): MIN OBM 10.10 68.0 0.0 44000 4.0 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: 0.000 MUD CAKE AT MT: 0.000 0.000 0.000 0.0 0.0 0.0 0.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): SANDSTONE 2.65 12.250 TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 0.0 2 REMARKS: INTERVAL FROM 11589 TO 11632 FT MD (8324 TO 8352 FT TVD) WAS LOGGED 11.0 HOURS AFTER BEING DRILLED. $ CN . PRUDHOE BAY DRILLING WN : L4-12 FN LISBURNE COUN ' NORTH SLOPE STAT :ALASKA LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 DATA FOR THIS FILE CONSISTS OF BIT RUN 12. * FORMAT RECORD (TYPE# 64) Entry Type(4) Size(1) Repcode(66) Logging direction is down (value= 255) Entry Type(12) Size(4) Repcode(68) Null data value is: -999.250000 Entry Type(16) Size(1) R. epcode(66) Datum Specification Block Sub-type is: Entry Block terminator. Summary of entry types encountered: 1 2 3 4 5 6 7 8 910!1 !2 13 14 15 16 000 1 0000000 1 000 1 Rep Code Count Bytes 68 18 72 Sum: 18 72 72 fndun a [F ] 1.00000000 ONE DEPTH PER FRAME Tape depth ID: F 18 Curves: Name Code Samples Units 1 ARCM 68 1 -dB 2 CAAM 68 I MMHO 3 CACM 68 1 MMHO 4 CPAM 68 I MMHO 5 CPCM 68 1 MMHO 6 GRAM 68 I GAPI 7 GR 68 1 GAPI 8 GRCM 68 1 GAPI 9 PDCM 68 1 DEG 10 RAAM 68 1 OHMM 11 RA 68 1 OHMM 12 ROP 68 1 FPHR 13 RPAM 68 I OHMM 14 RP 68 1 OHMM 15 RPDM 68 1 OHMM 16 FET 68 I HR 17 TCDM 68 1 DEG 18 WOBS 68 1 LB Size Length 4 4 4 4 4 .... 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 72 ** Routine LEVONE detects data discrepancy: DSB indicates: 1 FRAMES Data Record Length indicates: 13 FRAMES * DATA RECORD (TYPE# 0) 994 BYTES * Total Data Records' 285 Tape File Start Depth = 11590.000000 Tape File End Depth - 12516.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code' 68 20526 datums Tape Subtile: 5 352 records... Minimum record length: Maximum record length: 62 bytes 994 bytes -- Tape Subtile 6 is type: LIS **** FILE HEADER **** MWD .005 1024 LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 FILE HEADER FILE NUMBER: 5 -- RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 3 -- DEPTH INCREMENT: 0.2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH MWD 12516.0 $ LOG HEADER DATA DATE LOGGED: SOF"FWARE __ 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 BOTTOM) VENDOR TOOL CODE TOOL TYPE 12521.0 10 OCT 91 M1.32 M1.32 MEMORY 0.0 12516.0 12521.0 0 78.0 78.0 TOOL NUMBER MWD $ DUAL PROPAGATION 2615-05 BOREHOLE AND CASING DATA · OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (F'I'): 12.250 10912.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD Ph: MUD CHLORIDES (PPM): FLUID LOSS (C3): MIN OBM 10.30 20.0 0.0 44OOO 3.8 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: 0.000 MUD CAKE AT MT: 0.000 0.000 0.000 0.0 0.0 0.0 0.0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): SANDSTONE 2.65 12.25O TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 0.0 2 REMARKS: INTERVAL FROM 12516 TO 12521 FT MD (8764 TO 8765 FT TVD) WAS LOGGED 14.0 HOURS AFTER BEING DRILLED. INTERVAL FROM 12521 TO 12583 FT MD (8765 TO 8774 FT TVD) WAS NOT LOGGED DUE TO SENSOR OFFSET AT THE END OF 8 1/2 INCH HOLE. $ CN : PRUDHOE BAY DRILLING WN : L4-12 FN LISBURNE COUN NORTH SLOPE STAT ALASKA LIS COMMENT RECORD(s): 12345678901234567890123456789012345678901234567890123456789012345678901234567890 DATA FOR THIS FILE CONSISTS OF BIT RUN 13. * FORMAT RECORD (TYPE# 64) '- Entry Type(4) Size(1) Repcode(66) Logging direction is down (value = 255) Entry Type(12) Size(4) Repcode(68) -- Null data value is: -999.250000 Entry Type(16) Size(1) Repcode(66) Datum Specification Block Sub-type is: Entry Block terminator. Summary of entry types encountered: 1 2 3 4 5 6 ? 8 91011 12 13 14 15 16 000 1 0000000 1 000 1 _ Rep Code Count Bytes 68 18 72 _ Sum: 18 72 72 fndun a [F ] 1.00000000 ONE DEPTH PER FRAME Tape depth ID: F 18 Curves: Name Code Samples Units Size Length 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ARCM 68 1 -dB 4 4 CAAM 68 1 MMHO 4 4 CACM 68 1 -'MMHO 4 4 '' CPAM 68 1 MMHO 4 4 CPCM 68 1 MMHO 4 4 GRAM 68 1 GAPI 4 4 GR 68 1 GAPI 4 4 GRCM 68 1 GAPI 4 4 PDCM 68 1 DEG 4 4 RAAM 68 1 OHMM 4 4 RA 68 1 OHMM 4 4 ROP 68 1 FPHR 4 4 RPAM 68 1 OHMM 4 4 RP 68 1 OHMM 4 4 RPDM 68 1 OHMM 4 4 FET 68 1 HR 4 4 TCDM 68 1 DEG 4 4 WOBS 68 1 LB '4 4 72 '- ** Routine ~EVONE detects data discrepancy: DSB indicates: 1 FRAMES Data Record Length indicates: 13 FRAMES * DATA RECORD (TYPE# 0) 994 BYTES * Total Data Records: 2 Tape File Start Depth = 12516.000000 Tape File End Depth = 12521.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** _ LIS representation code decoding summary: Rep Code: 68 21294 datums Tape Subfile' 6 72 records... -- Minimum record length' Maximum record length: 62 bytes 994 bytes Tape Subtile 7 is type: LIS **** TAPE TRAILER **** MWD 91/11/4 848 01 **** REEL TRAILER **** MWD 91/11/20 848 01 Tape Subtile: 7 2 records... Minimum record length: Maximum record length: 132 bytes 132 bytes End of execution' Wed 20 NOV 91 1:51p Elapsed execution time = 1 minute, 5.5 seconds. SYSTEM RETURN CODE = 0 Tape Subtile 1 is type: LIS · Tape Subtile 2 is type: LIS DEPTH GR FET WOBS 9792.0000 99.3084 -999.2500 -999.2500 9792.2500 95.6294 -999.2500 -999.2500 9800.0000 85.5262 .... 0.0000 -999.2500 9825.0000 100.6679 30.0000 -999.2500 9850.0000 91.6281 53.0000 -999.2500 9875.0000 93.7883 46.0000 41.0652 9900.0000 107.4623 62.0000 60.2523 9925.0000 96.0837 61.0000 60.1812 9950.0000 100.6895 46.2200 42.2015 9975.0000 96.5410 48.0000 55.5080 10000.0000 91.0538 60.0000 55.2032 10025.0000 103.3938 59.0000 54.2989 10050.0000 110.2887 44.1920 55.6909 -999.2500 -999.2500 3.1678 3.7884 2.6977 2.8470 2.8741 2.5450 3.6648 2.6263 3.5681 2.79O2 5.3068 ROP -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 66.O752 63.7814 72.6043 61.5675 66.8870 65.0340 59.4437 60.1538 RP -999.2500 -999.2500 2.8966 3.5702 2.6103 2.6435 2.7768 2.5686 3.3779 2.8690 3.4102 2.7059 4.8935 10075.0000 97.1254 3.5084 68.7047 3.2039 41.0000 55.2337 10100.0000 64.19(~0 10125. 0000 80.0000 10150.0000 61.0000 10175.0000 49.0000 1O200.0000 57.0000 10225.0000 57.0000 10250.0000 46.0000 10275.0000 57.0000 10300.0000 57.0000 10325.0000 47.0000 10350.0000 50.0000 10375.0000 62.0000 10400.0000 60.3040 10425.0000 52.0000 10450.0000 50.0000 94.7799 56.5O38 95.2671 52.6833 110.8253 55.4349 111.9380 55.3861 112.2669 55.6909 102.2767 56.2396 120.6134 56.0262 108.1375 56.5038 109.2669 56.5596 101.9424 44.7477 108.5112 56.1380 105.3273 56.2447 113.6363 56.0161 125.5188 62.6718 116.7909 60.5233 2.6601 2.2322 3.0874 3.0765 3.4267 2.7722 3.7032 2.8218 2.9075 2.9619 3.2510 4.1719 3.5309 4.4034 3.386O 67.7915 84.1333 73.0992 68.6548 65.9574 82.8375 66.9217 75.2914 78.8788 61.6450 69.0120 60.6277 62.5128 60.5770 61.7336 2.3080 2.0371 2.9843 2.9744 3.2524 2.4366 3.4559 2.7863 2.8815 2.8280 3.2212 3.9361 3.5039 4.3535 3.4549 10475,0000 55,0000 10500.0000 52.0000 10525.0000 41.0000 10550,0000 41.8830 10575.0000 55.0000 10600.0000 54.0000 10625.0000 40.0000 10650.0000 47,0000 10675.0000 49.0000 10700.0000 42.0000 10725.0000 42.0000 10750.0000 54.0000 10775.0000 47.3260 10800.0000 28.393O 10825.0000 27.0000 1O85O,OOO0 103,5453 60,5741 110.6598 61,4174 114.6968' 61.0974 100.6249 61.0415 110.0262 60.6350 120.0497 61.1888 98.2708 67.4124 117.9042 62.2710 120.3569 62.1795 132.2692 60,8281 129,139O 53.4615 141.5937 50,6063 140,8028 52,2218 156.6699 53,9238 160.1295 54.9297 153.8655 2,3212 3,4429 3,3585 3.3585 2.7629 3.0930 2,6095 3,O536 2.7563 2.9080 3.2250 3,0930 3,4715 2,9919 1.6260 2.2806 79.1681 67.8040 77,7629 73.6311 76.2538 76,0346 77.2128 71.1922 76.1841 74,1177. 76.2110 34.5449 58.6726 98,4927 117.8707 118,5264 2.4603 3.6196 3,5146 3,4265 2,8958 3.1856 2,8772 3,4555 3.1129 3,2768 3.3713 4,1511 4,2128 3.6841 1.5413 3.0345 RECEIVED DEC I ~ ~991 Alaska Oil & 6as Cons. Commission, Anchorage 38.0000 58.9331 10875.0000 -999.2500 10900.0000 32O3.0000 10925.0000 91.0000 10950.0000 45.0000 10975.0000 46.0000 11000.0000 43.0000 11025.0000 64.6170 11050.0000 60.0000 11075.0000 58.000O 11100.0000 57.0000 11125.0000 71.0000 11150.0000 76.0000 11175.0000 48.OO0O 11200.0000 41.0000 11225.0000 64.0000 95.1407 60.0559 97.9468 61 .O262 134.5259 31.3057 172.2961 46.5013 193.4468 47.9340 155.2169 42.8671 129.6364 43.3446 100.4954 42.9839 100.7455 43.8476 100.7073 43.8984 96.1884 44.3302 105.8256 43.3649 113.7365 28.2915 102.3828 45.1634 106.5319 45.6633 -999.2500 0.0871 2.9554 2.2650 2.5470 2.0757 2.4482 3.4157 2.9415 2.8828 2.9072 2.7209 2.4044 2.1634 2.1239 111.9859 100.2116 30.9851 69.5294 64.8262 68.8625 65.7959 25.2657 36.4375 43.2517 49.8695 61.5051 46.7158 55.0506 60.8987 -999.2500 430.9640 3.0962 2.2191 1.5376 1.4872 2.1513 2.6304 2.6452 2.6350 2.5761 2.3279 2.0296 1.9896 1.8191 11250.0000 56.0000 11275.0000 34.0000 11300.0000 31.0000 11325.0000 47.0000 11350.0000 36.0000 11375.0000 46.0000 11400.0000 39.0000 11425.0000 45.O000 11450.0000 33.0000 11475.0000 33.0O00 1150O.00O0 55.0OO0 11525.00O0 62.0000 11550.0000 48.0000 11575.0000 47.0000 11600.0000 741.0000 11625.0000 105.7011 46.5707 113.7890 42.9941 149.2425 44.9500 207.2872 44.1880 196.3490 3O.45O5 232.4980 43.4869 268.3848 43.6596 274.7762 43.6596 189.0998 42.1456 120.0981 43.8120 199.9630 41.2820 200.6800 42.3946 209.8105 42.6943 240.8178 42.0339 245.2961 42.1659 208.2043 3.0931 2.1161 2.537O 2.1622 2.48O9 3.2630 3.8160 3.4307 2.4589 2.73O4 2.5291 2.6720 2.9525 4.1671 4.7110 3.9532 40.5149 96.6807 77.2564 84.8806 59.8271 67.0074 58.3121 69.9317 99.9423 34.6297 81.3389 87.8637 68.3660 49.7746 54.2424 54.9970 2.9710 1.6547 1.9511 1.8549 2.0107 2.9921 2.8701 2.4784 1.8075 2.3878 2.5057 2.5760 3.7950 3.6037 3.3086 3.1773 751.7400 42.6384 11650.0000 100.8980 11675.0000 80.8920 11700.0000 79.0000 11725.0000 83.0000 11750.0000 71.0000 11775.0000 64.0000 11800.0000 79.0000 11825.0000 87.0000 11850.0000 77.0000 11875.0000 85.0000 11900.0000 91.0000 11925.0000 95.0000 11950.0000 79.0000 11975.0000 78.0000 12000.0000 80.0000 166.0699 29.9921 168.9366 61.9874 185.2401 32.8976 162.3167 32.7449 156.2630 58.8882 151.5681 60.4472 134.6205 34.5000 163.7670 30.5078 193.7745 60.5354 157.1862 60.2441 162.1494 31.3386 182.2821 30.1654 184.1945 62.0000 153.0225 27.8425 146.1765 27.3228 3.8764 3.5188 5.6587 5.6167 7.2834 10.7654 13.3574 7.1756 10.5314 8.2894 7.9111 4.5661 7.7463 18.7998 24.1602 54.2061 41.9290 44.8102 51.1768 53.6760 57.8557 56.9798 54.5471 38.1299 48.2918 52.9183 47.5166 36.5394 52.9795 67.8292 3.3381 2.8450 4.9025 4.5050 5.4221 9.9550 9.8506 4.7239 5.1265 5.5444 6.1722 5.2295 5.1251 9.7278 8.9656 12025.0000 85.0000 12050.0000 67.OO00 12075.0000 77.0000 12100.0000 78.000O 12125.0000 .- 81.0000~ ~ 12150.0000 73.0000 12175.0000 81.4560 12200.0000 87.0000 12225.0000 67.OO00 12250.0000 78.3950 12275.0000 82.00O0 12300.000O 91.0000 12325.0000 76.0000 12350.0000 91.0000 12375.0000 100.0000 12400.0000 258.8321 27.9213 287.5930 61.3779 230.5987 28.1181 196.7239 27.1653 416.6436 ,50.48!9 200.7745 63.7953 2O3.6376 29.1220 348.2310 32.4213 350.8705 68.8630 214.7052 61.4252 294.7489 33.5591 121.3226 34.4646 218.5802 67.8709 228.2045 70.9134 308.0845 36.8976 2O9.92O0 8.1527 13.1110 19.1707 21.6801 22.2915 17.4496 7.7686 15.9038 12.9682 11.5180 13.1762 15.9038 9.0443 11.1327 15.5858 17.3390 56.8418 64.4617 58.2295 63.9836 68.0000 52.0247 61.2466 77.9396 55.9705 58.0924 72.4316 60.4173 48.8023 42.4266 61.1976 62.4000 6.5303 8.1327 10.0791 18.9798 10.8432 14.0987 3.7229 15.9843 10.2460 6.4042 13.2797 18.9186 10.0792 11.0766 17.4923 17.6228 100.0000 62.2205 12425.0000 149.5733 18.5053 87.0000 69.5945 12450.0000 177.2142, 21.2820 118,2890 71,6181 12475,0000 177,0846 19,1707 134.0000 36,7047 12500.0000 142.9722 14.3565 121.1140 71.5559 12525.0000 -999.2500 7.8935 1009,0540 69,7717 12550,0000 -999,2500 -999,2500 -999,2500 69,3149 12575,0000 -999.2500 -999,2500 -999,2500 36,9724 12590,0000 -999,2500 -999,2500 -999,2500 -999,2500 37,9057 47.7004 51.2497 37.5656 37,8147 3O.9244 30.9634 -999,2500 16.5279 25.9959 24.7964 15.8489 6.5073 -999.2500 -999.2500 -999.2500 Tape File Start Depth = 9792,000000 Tape File End Depth = 12590,000000 Tape File Level Spacing = 0,250000 Tape File. Depth Units = Feet Tape Subtile 3 is type: LIS -- DEPTH ARCM CAAM CPCM GRAM GR RAAM RA ROP -- RPDM FET TCDM CACM GRCM RPAM WOBS CPAM PDCM RP 9788.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 0.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 9788.2500 ..... --999.2500 ....... -999.2500 -999.2500 -§99.2500 -999.2500 -999.2500 -999.2500 -999.2500 0.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999..2500 -' 9900.0000 1.2613 347.6404 347.9427 359.9696 360.1289 107.5144 107.4623 151.9567 14.7081 2.8766 2.8741 63.7814 2.7781 2.7768 -- 3.0000 62.0000 110.0000 60.2523 9925.0000 1.3915 392.6249 392.9302 389.1718 389.3192 97.4570 96.0837 137.7420 15.4155 2.5470 2.5450 72.6043 2.5696 2.5686 9875.0000 1.2707 350.8011 351.2484 378.0555 378.2809 93.9715 93.7883 132.8156 15.1494 2.8506 2.8470 66.0752 2.6451 2.6435 4.0000 46.0000 108.0000 41.0652 9850.0000 1.3274 370.2283 370.6851 382.9009 383.1240 91.3573 91.6281 129.1208 15.2657 2.7011 2.6977 -999.2500 2.6118 2.6103 3.0000 53.0000 104.0000 -999.2500 9825.0000 1.0020 263.5692 263.9649 279.8307 280.1002 108.7852 100.6679 153.7528 12.6057 3. 7941 3. 7884 -999.2500 3.5736 3.5702 3.0000 30.0000 -999.2500 -999.2500 9800.0000 1.1641 315.2491 315.6774 344.9869 345.2280 85.9030 85.5262 121.4119 14.3,342 3.1721 3.1678 -999.2500 2.8987 2.8966 3.0000 0.0000 -999.2500 -999.2500 3.0000 61.0000 110.0000 60.1812 9950.0000 296.0415 3.6686 0.0000 9975.0000 348.5578 2.6284 3.0000 10000.0000 2,-33.2466 3.5718 3.0000 10025.0000 369.5649 2.7926 3.0000 1O05O.00OO 204.3523 5.3135 0.0000 10075.0000 312.1238 3.5120 3.0000 10100.0000 433.4967 2.6623 0.0000 10125.0000 490.9017 2.2337 3.0000 10150.0000 335.0888 3.0902 3.O000 1.0309 101.8866 3.6648 46.2200 1.3568 98.6189 2.6263 48.0000 1.0544 ~-. i uou 3.5681 60.0000 1.2921 108.4221 2.7902 59.OO00 0.7470 110.9153 5.3068 44.1920 1.0695 104.4282 3.5084 41.0000 1.3434 93.5358 2.6601 64.1900 1.5438 95.4238 2.2322 80.0000 1.1895 103.9925 3.0874 61.0000 272.5826 100.6895 61.5675 108.6667 · 380.4587 96.5410 66.8870 110.0000 279.9758 91.0538 65.0340 112.0000 358.0887 103.3938 59.4437 112.0000 188.1985 110.2887 60.1538 110.0000 284.7506 97.1254 68.7047 114.0000 375.8488 94.7799 67.7915 116.0000 447.6827 95.2671 84.1333 116.0000 323.6031 110.8253 73.O992 112.0000 272.8685 144.0027 3.3800 42.2015 380.7634 139.3842 2.8703 55.5080 280.2642 130.2498 3.4124 55.2032 358.3917 153.2397 2.7070 54.2989 188.4385 156.7634 4.8987 55.6909 285.0404' 147.5948 3.2057 55.2337 376.1531 132.1998 2.3O87 56.5038 447.9875 134.8683 2.0375 52.6833 323.9022 146.9790 2.9858 55.4349 295.8572 13.0479 3.3779 348.3939 14.4200 2.8690 293.0612 12.9716 3.4102 369.4095 14.9397 2.7059 204.1377 10.3280 4.8935 311.9456 13.4801 3.2039 433.3666 16.4355 2.3080 490.7932 17.6888 2.0371 334.9196 14.0781 2.9843 1O175.O0OO 336.1992 3.0794 4.0O00 10200.0000 307.4652 3.4301 4.0000 10225.00O0 410.4153 2.7745 4.0000 10250.0000 289.3569 3.7071 3.0000 10275.0000 358.9024 2.8242 0.0000 10300.0000 347.0367 2.9101 3.0000 10325.0000 353.6050 2.9652 3.0000 10350.0000 310.4431 3.2549 3.0000 1O375.OO00 254.0591 4.1777 3.0000 10400.0000 1.1929 115.6596 3.0765 49.00~ 1.0908 113.3600 3.4267 57.0000 1.2989 99.9260 2.7722 57.uo(JU 1.0218 120.3312 3.7032 46.0O00 1.2803 106.5341 2.8218 57.0000 1.2495 112.1740 2.9075 57.0000 1.2304 105.7353 2.9619 47.O000 1.1395 109.6566 3.2510 50.0000 0.9227 101.1605 4.1719 62.0000 1.0635 324.7431 111.9380 68.6548 116.0000 291.5335 112.2669 65.9574 116.0000 360.4236 102.2767 82.8375 i 18.0000 269.7531 120.6134 66.9217 116.0000 354.0792 108.1375 75.2914 118.0000 343.6342 109.2669 78.8788 120.0000 337.2399 101.9424 61.6450 116.0000 307.2327 108.5112 69.0120 120.0000 239.3682 105.3273 60.6277 122.0000 282.8550 325.0424 163.4688 2.9759 55.3861 291.8252 160.2187 3.2543 55.6909 360.7268 141.2316 2.4374 56.~396 270.0379 170.0715 3.4582 56.0262 354.3820 150.5712 2.7875 56.5038 343.9363 158.5424 2.8829 56.5596 337.6191 149,4422 2.8296 44.7477 307.6000 154.9844 3.2235 56.1380 239.7011 142.9763 3.9399 56.2447 283.2112 336.0303 14.1068 2.9744 307.2852 13.3561 3.2524 410.2762 15.9102 2.4366 289.1701 12.8649 3.4559 358.7426 14.6779 2.7863 346.8721 14.3815 2.8815 353.4011 14.5452 2.8280 310.2208 13.4342 3.2212 253.8151 11.8608 3.9361 285.1622 285.3945 3.5354 O.O00D 125.3418 3.5309 60.3040 113.6363 62.5128 122.0000 177.1532 3.5068 56.0161 12.7542 3.50,39 10425.0000 229.6997 4.4097 0.0000 0.8805 129.4083 4.4034 52.0000 226.7727 125.5188 60.5770 120.0000 227,0966 182.9007 4.3583 62.6718 229.4476 11.1291 4.3535 10450.0000 289.4421 3.3901 0.0000 10475.0000 406.4550 2.3234 3.0000 1.1015 108.7852 3.3860 5O.OOO0 1.4968 103.8473 2.3212 55.000O 294.9736 116.7909 61.7336 122.0000 430.4036 103.5453 79.1681 122.0000 295.3356 153.7528 3.4577 60.5233 430.8084 146.7738 2.4614 60.5741 289.2114 12.8660 3.4549 406.2744 15.8175 2.4603 10500.O000 276.2750 3.4471 3.0000 1.0863 110.8911 3.4429 52.0000 290.1005 110.6598 67.8040 122.0000 290.4603 156.7292 3.6227 61.4174 276.0392 12.4992 3.6196 10525.O000 284.5311 3.3626 3.0000 1.1091 111.0121 3.3585 41.0000 297.3899 114.6968 77.7629 122.0000 297.7530 156.9002 3.5174 61.0974 284.2985 12.7302 3.5146 1O55O.0O0O 291.8459 3.3626 0.0000 1.1091 100.9910 3.3585 41.8830 297.3899 100.6249 73.6311 124.0000 297.7530 142.7369 3.4292 61.0415 291.6161 12.9321 3.4265 10575.0000 345.3228 2.7659 0.0000 1.3022 115.3207 2.7629 55.OOOO 361.5454 110.0262 76.2538 126.0OO0 361.9323 162.9898 2.8976 60.6350 345.1153 14.3374 2.8958 10600.0000 313.9103 3.0966 3.0000 1.1874 109.0757 3.0930 54.0000 322.9349 120.0497 76.0346 126.0000 323.3O88 154.1634 3.1879 61.1888 313.6896 13.5264 3.1856 1O625.0000 347.5671 1.3637 99.4903 382.8948 98.2708 383.2879 140.6158 347.3605 14.3940 2.6122 2.6095 77.2128 2.8789 4.0000 40.0000 124.0000 67.4124 10650.0000 289.3969 3.0571 3.0000 1.2001 116.9182 3.0536 47.0000 2.8772 327.1113 327.4867 289.1682 117.9042 165.2477 12.8647 71.1922 3.4582 3.4555 126.0000 62.2710 10675.0000 1.3047 362.4147 362.8018 321.0234 321.2412 120.8879 120.3569 170.8584 13.7192 2.7593 2.7563 76.1841 3.1150 3.1129 3.0000 49.0000 126.0000 62.1795 10700.0000 305.1967 2.9113 3.0000 ..... 343.5693- ..... 343.9507 132.2692 ' 185.3639 74.1177 3.2792 126.4000 60.8281 1.2493. 131.1511 2.9080 42.0000 3O4.9723 13.2941 3.2768 10850.0000 1.5179 438.1243 438.5306 329.5428 329.7570 i47.2235 153.8655 208.0800 13.9387 2.2828 2.2806 118.5264 3.0364 3.0345 10825.0000 1.9683 614.6155 615.0115 648.7147 648.8013 160.1976 160.1295 226.4172 20.7878 1.6270 1.6260 117.8707 1.5415 1.5413 3.0000 27.0000 128.0000 54.9297 10800.0000 1.2203 333.8616 334.2396 271.1968 271.4344 160.5849 156.6699 226.9646 12.3624 2.9953 2.9919 98.4927 3.6874 3.6841 0.0000 28.3930 124.0000 53.9238 10775.0000 1.0788 287.6999 288.0585 237.1202 237.3698 144.5125 140.8028 204.2484 11.3632 3.4758 3.4715 58.6726 4.2173 4.2128 0.0000 47.3260 130.0000 52.2218 10750.0000 1.1874 322.9349 323.3088 240.6512 240.8997 138.8968 141.5937 196.3114 11.4696 3.0966 3.0930 34.5449 4.1554 4.1511 3.0000 54.0000 128.0000 50.6063 -- 10725.0000 1.1471 309.7075 310.0760 296.3973 296.6251 125.6322 129.1390 177.5638 13.0626 3.2289 3.2250 76.2110 3.3738 3.3713 -" 4.0000 42.0000 128.0000 53.4615 3.0000 38.01:)00 130.0000 58.9331 10865.0000 1.6737 496.6709 497.0887 350.0935 350.2987 -999.2500 -999.2500 -999.2500 14.4547 2.0134 2.0117 105.9698 2.8564 2.8547 0.0000 -999.2500 130.0000 60.3932 Tape File Start Depth = 9788.000000 Tape File End Depth = 10865.000000 Tape File Level Spacing - 0.250000 Tape File Depth Units - Feet Tape Subfile 4 is type: LIS DEPTH ARCM CPCM GRAM RAAM RA RPDM FET CAAM GR ROP TCDM CACM GRCM RPAM WOBS CPAM PDCM RP 10865.0000 1.6737 496.6709 497.0887 350.0935 350.2987 -999.2500 -999.2500 -999.2500 14.4547 2.0134 2.0117 105.9698 2.8564 2.8547 0.0000 -999.2500 130.0000 60.3932 -999.2500' -999.2500 -999.2500 60.0843 10865.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 106.1357 0.0000 -999.2500 130.0000 -999.Z500 -999.250O -999.2500 10875.0000 -999.2500 -999.2500 -999.2500 -999.2500 -999.2500 94.9949 95.1407 102.0264 -999.2500 -999.2500 -999.2500 111.9859 -999.2500 -999.2500 0.0000 -999.2500 130.0000 60.0559 -- 10900.0000 12.8115 11507.3281 11481.3145 2.3200 2.3204 94.6955 97.9468 101.7048 0.2647 0.0869 0.0871 100.2116 431.0276 430.9640 -. 3.0000 3203.0000 128.0000 61.0262 10925.0000 1.2277 338.3596 338.3602 323.0421 322.9781 132.5135 134.5259 140.8169 13.7519 2.9554 2.9554 30.9851 3.0956 3.0962 4.0000 91.0000 108.0000 31.3057 10950.0000 1.5206 441.5117 441.5073 450.7388 450.6298 167.0091 172.2961 177.4739 16.8116 2.2649 2.2650 69.5294 2.2186 2.2191 4.0000 45.0000 112.0000 46.5013 10975.0000 1.3846 392.6228 392.6241 650.3722 193.1983 193.4468 205.3042 2.5470 2.5470 64.8262 1.5371 3.0000 46.0000 116.0000 47.9340 11000.0000 1.6282 481.7882 481.7748 672.4131 160.1252 155.2169 170.1587 2.0756 2.0757 68.8625 1.4868 650.5575 20.8162 1.5376 672.6078 21.2167 1.4872 4.0000 43.0000 118.0000 42.8671 11025.00OO 464.8394 2.4482 0.0000 050.0000 380.1686 3.4157 4.0000 11075.0000 378.0424 2.9415 4.0000 11100.0000 379.5083 2.8828 4.0000 1125.OOOO 388.1866 2.9O72 3.0000 11150.0000 429.5803 2.7209 3.0000 11175.0000 492.9677 2.4044 3.0000 11200.0000 502.6196 2.1633 3.0000 11225.0000 549.7151 2.1239 0.0000 1.4297 130.6569 2.4482 64.6170 1.0889 101 .O669 3.4157 60.0000 1.2325.. 95.1841 2.9415 58.0000 1.2530 102.6109 2.8828 57.OO00 1.2445 97.7575 2.9072 71.0000 1.3133 106.6175 2.7209 76.0000 1.4503 119.2235 2.4044 48.0(0:X) 1.5765 103.0995 2.1634 41.0000 1.5994 104.9237 2.1239 64.0000 408.4656 129.6364 65.7959 120. OOOO 292.7791 100.4954 25.2657 122.0000 339.9589 100.7455 36.4375 122.0000 346.8802 100.7073 43.2517 124.0OO0 344.0444 96.1884 49.8695 126.OOOO 367.524O 105.8256 61.5051 128.OOOO 415.9071 113.7365 46.7158 128.0000 462.2495 102.3828 55.0506 130.0000 470.8386 106.5319 60.8987 132. 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11.1015 11.1027 0.0000 122.8650 140.0000 66.8850 Tape File Start Depth = 11590.000000 Tape File End Depth = 12516.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet Tape Subtile 6 is type: US DEPTH ARCM CAAM CPCM GRAM GR RAAM RA ROP RPDM FET TCDM CACM GRCM RPAM WOBS CPAM PDCM RP 12516.0000 0.4227 103.3817 103.3817 90.0777 90.0681 115.3758 115.5751 127,9318 5.9245 9.6729 9.6729 49.0524 11.1015 11.1027 0,0000 122.8650 140,0000 66,8850 12516.2500 0.4244 103.8005 103.8005 97.3968 97.3861 113.9805 116,6704 126.3847 6.2601 9,6339 9,6339 44,1115 10.2791 10,2802 1.0000 123.0000 140.0000 67.4394 12521.0000 0.4293 105.0278 105.0278 108.9489 108.9362 117.2507 114.3825 130.0108 6.7726 9.5213 9.5213 32.1230 9.1786 9.1797 4.0000 993.0000 140.0000 69.2362 Tape File Start Depth = 12516.000000 Tape File End Depth = 12521.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units -- Feet Tape Subtile 7 is type: LIS · COgPA~4Y NA~5; ! ARCO ALASKA INC. WELb gA~M : ~,ISBURNC 54-12 FIELD NA~E ~ PRUDNOE B~Y/[~ISBURNE POOL STATE ~ ~LASK~ R~F~RENCE NC : 75130 IS Tape \ter~ficatjom r~t, stiDn chlum~,er~er ~.laska ¢:o,,pt~tinq Center PAGE; **** TAPE HEAl)ER **** DATF : qit%~ll6 O~IGi~ : FLTC TAPF NA~E : 75~:~0 CONTI~IJATION # ! J P~EvlOUS ~AoE ~ CO~NT { GCT, ARCO L2-12, PRfJDHOE [{AY/bISBOR~,!f., POOL, PRUDHOE BAY/LISBURi~E POOL, APl #50-029-222~6 #50-02g-22216 **** FILE N~:ADER **** FIL~ MA~E : GCT .001 S~RwICE : FLIC VERSION : 00{~A07 ~X REC SIZE : ~024 F!LF TYPE : [.0 L~ST FII,E : ******************************************************************************* ** ** ** $CHbU~BgRGER WEGb SERVICES ** ** ** ** ******************************************************************************* ******************************************************************************* CO~IPAMY NA~F; ARCO ALASKA I~.tC. WFLI,: I, ISF~{R~.!E b4-12 FIEI.~[~ PRUDH(3M BAY/LISBURNE PO()l, BOROUGH: NORTH SLOP~ API [~ 1..{ ~4 BER: 50-O'29-2~21 6 LOCAT.T.O~: 213'2' eSL, 2!1.7" FEB ....... ,. ,,o I : . bOG MW. ASUP. ED FRO?i t'<F{ 56 RA~.~GE: IS Tame Verification t:istJnq chlumberqer Alaska CoP'Put.i. Dq Center 11:42 PAGE: 54.5 17.5 TwO 519" 47 LB m DRIbT,CR D~fPTH OF n TO 10870 5/m" ~9 I~ R DRIbLEP DEPT~ OF 10575 TO 12585 9IT SIZE t: CASIKG BTT SIZE 2: !,I~E~ 9.20 MIXI~UM T~MP RECOILED: 160 LOGGING PIST~ICT: PPU~HOE BAY CHENEVEY ~) . HABERTHI~R GCAD-A 701. GCPC-B 727 GC!D-A 37 7i8 TCC-B 839 GCEC-B 726 TCN-Am 95 DATE JOB STARTED: 5-NOV-91 JOB REFERENCE NO: 75130 LDP/ANA: $. DEE$ CO~!Pl. iTIMG CENTKR RE~ARKS: 8W8 ,HEAP wELL AZI~UTM OF 22 84 USED IN CO,.PUTATION, THIS F~O~,~ G(. [.,tST READI~G {12484 ) TO DRILLER's DEPTH (14969'). TABLE TYPE TUNI VA!,U DEFI c NC CN A~_O ~LASKA I , ComDan Name FN PRUDHO~; BAY/!,ISBURNE POOL Field ame ww [~ISBURNM L4-12 Well Name NATT USA Nation STAT ALASKA State or Province COuN NORTH SLOPE County SECT 24 SectioD TOw~ 1,~N Towmshlp IS Tape ueri~lcatlon I, istina ChlUmbercer ~laska ComPutJ. n~ Center TUNI VALU DEFI R~:!C 155 RanQe FI, 2~.32' FSL, 21~7' FEI,, Field Location SO~ 425~ 33 Service. Order Number A~I~~ 50-{)2~-22216 AP1 Serial Number DEF! ..... ........................................... ... DeD V~E~ ?rue Vertical De~th as c~nnel <TVTC~I> ~EVI Hole Deviation HLA7 neviat~on Azimuth NSD~ ~orth South Or~ft EWDP East west Drift Component CWEI, Curvature of the ~ell ** D~TA FORMAT SPECIF'~CATION P, ECORD ** 2 66 0 3 73 32 4 66 5 66 6 73 7 65 ~ 68 0,5 9 65 ~1 66 32 13 6b 0 14 65 ri ~5 66 68 ~6 66 0 66 0 IS Ta~.e v'eri~iCat~on [,J. st~ng chlumbero, er f~leska Co~put1~c.~ center 16-NOV-lg91 ~1:4~ PAGE: ** SET TYPE - CHAN ** S~RV UNIT ~E~VICF AP ~I ~PI APl PII,M .... (l~ E E R ESS ID OPDF;~ ~ LOG TYPE CS~SS ~OD ~11.!~8 $1~P ~L~ CODE (HEX) DFPT PT 425133 O0 OOO O0 0 1 1 ! 4 68 0000000000 COED GCT ET 4~5113 O0 000 O0 0 1 i 1 4 68 0000000000 VDE~ ~CT FT 4251~3 O0 OOO O0 O I ~ I 4 68 0000000000 DFVI ~CT LEG 425133 O0 000 O0 0 1 1 1 4 68 0000000000 HI, A~ GCT LEG ~75t113 aO OOO O0 0 1 1 i 4 68 0000000000 ~$O~ gC~ FT ~25113 O0 000 O0 t~ I I 1 4 68 0000000000 EWD~ CCT FT 4251.33 O0 000 O0 0 1 1 1 4 69 0000000000 CWEL GCT g~/~ ~25!~3 o0 0o0 O0 0 1 1 1 4 69 0000000000 ** DAT~ ** DEPT. NLAM.GCT 65535.500 GDEP.GCT 58.000 VDEP,GCT 58.000 DEVI.GCT 0.000 NSDR,GCT O,OOO E~DR.GCT 0.000 CWEL,GCT 65500.000 GDEP.GCT 916,750 VDEP GCT 916 511 DE¥I.GCT 1.6 002 ,~SDR .,~ 9.S47 a~Oa,OCW 2~626 CWEB.GCT 65400.00a Gi)EP.GCT 4618,248 vDEP.GCT 3995.892 DEVI.GCT ~2.91('~ aSDR.GCT 166~.362 EWOR.GCT 713.998 CWEL'GCT GCT 5980 634 LEVI GCT 6530().0o(> GDEP,GCT 7840.496 VDEP, . . GCT 1713 730 CWEL GCT ~1,38o NSDR.GC? 3991.,648 EwOR,. . . 652(30.00(3 GDEP,.GC? 10732.695 VDEP,GCT 7775,601 DEVI.GCT ~1.799 ~ISDR,GCT 6094.447 EWDR,GCT 2559,131t CWEL.GCT 651.~5,00() GDEP,GCT 14960,000 VDEP,GCT 9305.791 DE¥i.GCT 23.469 ~)'SDR'GCT 9641.00~ EWDR.GCT 4090.016 CWEL.GCT DEPT, ML~F.CCT DEPT. HLAM,GCT DEPT. HLAZ.GCT D~PT. HLA%,GCT DEFT. HLA?.GCT ** END OF DATA 0,000 0,000 3,732 0,436 48.439 0,000 52.858 0,572 52,224 0,960 76 938 0~000 **** FILE TRAIt, ER **** FIL? ~A~E : GCT ,001 VERSIOn! : 001~07 DATE ; gi!jl/16 a~X ~EC SIZ~ : !.024 FIL~ TYPE LIST FILE IS Tane Veri~icatlon bistino chlu~ber(~er ~laska Cctv:utC. nfl Center ~AGE= **** T~PE TP~!LEP **** SERVICE M~E : GCT D~TF : 91/11/16 ORIOLE : FLIC T~P~ ~A~E ! 75130 CONTI~t.~AT!O~ # : ~ C~"KMT ! GC~, ADCf) L2-12, PW~DMO~i BaY/LISBU~E P~Ob, ~P! #50-029-22216 **** REEL T~[,EP **** $~RVIC£ NAME DATE : 9!1tl/16 O~ICI~~ : FLIC REEL MA~E : 75130 COMTINV~TIOM ~ : PgEVlO[]S ~EEL : COmmENT : GCT, ARCO [,2-17, PRIjDHOM BAY/LISRUP~E POOL, AP1 #50-029-22216
