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195-130
Operator Name:2. Development Exploratory Service 5 Permit to Drill Number:195-130 6.50-029-22588-00-00 PRUDHOE BAY, PRUDHOE OIL Hilcorp North Slope, LLC 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 14222 11702 8825 11669 unknown 11702 8806 Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 110 20 139 139 1490 470 Surface 3514 10-3/4 3543 3406 3580 2090 Intermediate 11851 7-5/8 11880 8918 6890 4790 Production Perforation Depth: Measured depth: 11865 - 14110 feet True vertical depth:8913 - 9053 feet Tubing (size, grade, measured and true vertical depth)4-1/2" 12.6# L-80 11724 8837 11669 8806Packers and SSSV (type, measured and true vertical depth) 7-5/8"x4-1/2" Baker S-3 Liner 2491 5-1/2 11731 - 14222 8841 - 9054 7740 6820 12. Stimulation or cement squeeze summary: Intervals treated (measured): Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 21403809503 5391380 0 414 399 216 Representative Daily Average Production or Injection Data Prior to well operation: Subsequent to operation: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Contact Email: Dave Bjork David.Bjork@hilcorp.com Authorized Name:Bo York Authorized Title: Authorized Signature with Date:Contact Phone:907-564-4672 Treatment descriptions including volumes used and final pressure: 13. Operations Manager Operations Performed1. Abandon Plug Perforations Fracture Stimulate Pull Tubing GSTOR WINJ WAG GINJ SUSP SPLUG 16. Well Status after work:Oil 5 Gas Exploratory Development 5 Stratigraphic 15. Well Class after work: Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured9054 Sundry Number or N/A if C.O. Exempt: n/a 4-1/2" Camco TRCF-4A 2197 2192 Junk Packer Printed and Electronic Fracture Stimulation Data 5 Operations shutdown Change Approved Program Senior Pet Engineer:Senior Res. Engineer: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Suspend 5Perforate Other Stimulate Alter Casing Plug for Redrill Perforate New Pool Repair Well Re-enter Susp Well 3.Address: 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 7.Property Designation (Lease Number):ADL 028316 PBU 12-35 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): Stratigraphic Other: API Number: Form 10-404 Revised 03/2020 Submit Within 30 days of Operations By Samantha Carlisle at 11:41 am, Dec 08, 2020 Digitally signed by Bo York DN: cn=Bo York, c=US, o=HIlcorp Alaska LLC, ou=Alaska North Slope, email=byork@hilcorp.com Date: 2020.12.08 10:05:00 -09'00' Bo York ADL 028330, ADL 028335 SFD 12/8/2020 SFD 12/8/2020DSR-12/9/2020 RBDMS HEW 12/9/2020MGR04FEB2021 ACTIVITYDATE SUMMARY 11/26/2020 T/I/O= /1750/120 TEMP= SI (PERFORATING) Pre Sline Pumped 4 bbls 60/40 down FL for FP. Shut pit valve pressured FL up to 1500 psi per DSO . SV,SSV,WV= C MV= O CV's = OTG Hung Tags Notified DSO of well Status FWHP's= /1750/120 11/26/2020 ***WELL FLOWING ON ARRIVAL***(perforating) DRIFTED W/ 3.84" NOGO CENT TO 4-1/2" QOS SSSV @ 2197' MD. PULLED 4-1/2" QOS (#QOS-31) SSSV FROM TRSV @ 2197' MD.(missing pkg pieces) RAN FLAPPER CHECKER ASSY TO 4-1/2" CA.TRSV @ 2197' MD.(no issues, trsv locked out) RAN 4-1/2" BRUSH & 3.50" 3-PRONG WIRE GRAB, UNABLE TO PASS BKR PKR @ 11,669' MD.(recovered 1 piece of pkg) ***CONT'D ON 11/27/20 WSR*** 11/27/2020 ***CONT'D FROM 11/26/20 WSR***(perforating) DRIFTED TO DEVIATION W/ 3.25" CENT, TEL & 2.50" SAMPLE BAILER.(recovered ~4 cups of sand/scale material) LOCATED TT @ 11,716' SLM/11,724' MD, DEVIATE OUT @ 12,004' SLM/12,012' MD.(no issues) DRIFTED TBG W/ 30' x 2-7/8" DUMMY GUNS(3.16" rings) & 3.00" SAMPLE BAILER, TOOLS S/D @ 11,326' SLM.(recovered ~1/2 gallon of sand/scale) BRUSHED & FLUSHED TBG W/ 4-1/2" BRUSH & 3.33" GAUGE RING TO 12,000' SLM.(no issues) LRS PUMPED 200 BBLS OF CRUDE DOWN TBG FOR B&F. DRIFTED TBG W/ 30' x 2-7/8" DUMMY GUNS(3.16" rings) & 3.00" SAMPLE BAILER, TOOLS DEVIATED OUT @ 11,978' SLM.(recovered 2 cups of sand/scale) ***WELL S/I ON DEPARTURE, DSO NOTIFIED OF WELL STATUS*** 11/27/2020 T/I/O=1600/1750/100 Assist Slickline with B & F (Pre Eline) Pump 200 bbls crude at max rate to flush wellbore. FWHPs=1000/1600/100 11/29/2020 ...Well shut in on arrival... (HES EL - adperf) RIH WITH 30' x 2-7/8" MAXFORCE HMX CHARGES TO 11,300'. UP WEIGHTS TOO CLOSE TO SAFE OPERATING LOAD ON ELINE TO CONTINUE IN HOLE. POOH. (gun scallops packed with sand) PLAN TO LOAD WELL WITH SAFELUBE AND RUN ELECTRONIC RELEASAE CABLEHEAD TO INCREASE MAX SAFE PULL. ...Continued on 30-Nov-20... 11/30/2020 T/I/O=1455/1500/100 Assist E-line (Load Tbg) Pump 5 bbls 60/40, 228 bbls 1% kcl w/safelube, & freeze protect with 40 bbls crude FWHPs=0/1425/105 11/30/2020 ...Continued from 29-Nov-20... (HES EL - Adperf) LRS LOAD TBG WITH 1%KCL WITH SAFELUBE AND CRUDE FREEZE PROTECT. PERFORATE 11,865' - 11,895' WITH 30' x 2-7/8" MAXFORCE HMX, 6 SPF, 60 DEG PHASING. REFERENCE LOG WESTERN ATLAS SEGMENTED BOND LOG 24-OCT-1995. REFERENCE LOG DEPTHS 11,865' - 11,895'. ***Job Complete. Well shut in on departure. SL to set SSSV.*** 12/1/2020 ***WELL S/I ON ARRIVAL***(perforating) SET 4-1/2" QOS (ser# QOS-16) SSSV IN TRSV @ 2197' MD. PERFORMED PASSING DRAWDOWN TEST. ***WELL S/I ON DEPARTURE, DSO NOTIFIED OF WELL STATUS*** Daily Report of Well Operations PBU 12-35 • eiC.k. (2— 35 pTt lR5/300 Regg, James B (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> n i Sent: Monday, December 21, 2015 12:47 PM / i ') To: AK, OPS FS1 OSM;AK, OPS FS1 Facility OTL;AK, OPS FS1 Field OTL;AK, OPS FS1 DS Ops Lead; AK, OPS PCC EOC TL;AK, D&C Well Services Operations Superintendent;AK, D&C Wireline Operations Superintendent; Cismoski, Doug A; Daniel, Ryan;AK, RES GPB West Wells Opt Engr;AK, RES GPB East Wells Opt Engr;AK, OPS EOC Specialists;AK, OPS Prod Controllers; G GPB FS1 Drillsites;AK, OPS FS1 DS12 Operator; Stechauner, Bernhard; Wallace, Chris D (DOA) Cc: AK, D&C Well Integrity Coordinator;AK, D&C DHD Well Integrity Engineer;AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Morrison, Spencer; Sayers, Jessica; Dickerman, Eric; Regg,James B (DOA) Subject: OPERABLE: Producer 12-35 (PTD #1951300) MIT-IA Passed All, i Producer 12-35 (PTD#1951300) passed a MIT-IA on December 20, 2015 following gas lift valve work. The passing test confirms two competent barriers in the wellbore. The well is reclassified as Operable. • Well status is Operable • Annuli are fluid packed • A SSSV is needed Please use caution while placing well on production due to fluid packed annuli and the potential for annular fluid expansion. Thank you, Kevin Parks BP Alaska-Well Integrity Coordinator Glob&Welis Organization Office: 907.659.5102 WIC Email:AKDCWeiIIntegrityCoordinator@bp.com From: AK, D&C Well Integrity Coordinator Sent: Thursday, November 12, 2015 2:38 PM To: AK, OPS FS1 OSM; AK, OPS FS1 Facility OTL; AK, OPS FS1 Field OTL; , OPS FS1 DS Ops Lead; AK, OPS PCC EOC TL; AK, D&C Well Services Operations Superintendent; AK, D&C Wireli - Operations Superintendent; Cismoski, Doug A; Daniel, Ryan; AK, RES GPB West Wells Opt Engr; AK, RES GPB Eas ells Opt Engr; AK, OPS EOC Specialists; AK, OPS Prod Controllers; G GPB FS1 Drillsites; AK, OPS FS1 DS12 Opera •r; Stechauner, Bernhard; 'chris.wallace@alaska.gov' Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well egrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Molt:in, Spencer; Sayers, Jessica; Dickerman, Eric; Regg, James B (DOA) (jim.regg@alaska.gov) Subject: NOT OPERABLE: Producer 12-35 (PTD # ' 1300) Sustained Inner Annulus Casing Pressure Above MOASP All, 1 S S Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWelllntegrityCoordinator@bp.com> Sent: Thursday, November 12, 2015 2:38 PM To: AK, OPS FS1 OSM;AK, OPS FS1 Facility OTL; AK, OPS FS1 Field OTL; AK, OPS FS1 DS Ops Lead; AK, OPS PCC EOC TL; AK, D&C Well Services Operations Superintendent;AK, D&C Wireline Operations Superintendent; Cismoski, Doug A; Daniel, Ryan;AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr;AK, OPS EOC Specialists; AK, OPS Prod Controllers; G GPB FS1 Drillsites; AK, OPS FS1 DS12 Operator; Stechauner, Bernhard;Wallace, Chris D (DOA) Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Morrison, Spencer; Sayers,Jessica; Dickerman, Eric; Regg, James B (DOA) Subject: NOT OPERABLE: Producer 12-35 (PTD#1951300) Sustained Inner Annulus Casing Pressure Above MOASP All, Producer 12-35 (PTD#1951300)was reported to have sustained inner annulus casing pressure above MOASP on October 13, 2015. A cold TIFL failed on October 15, 2015. The orifice gas lift valve was changed out on October 27, 2015 and a warm TIFL was performed on November 03, 2015 and failed. The plan forward is to set dummy gas lift valves and MIT-IA to prove tubing and production casing integrity. Slickline is currently on the well now, but having issues getting past the subsurface safety valve. The work to diagnose the communication will not take place before the end of the 28 day Under evaluation clock.The well is reclassified as Not Operable until tubing integrity is confirmed. Please call with any questions or concerns. Thank you, Kevin Parks (Alternate: Whitney Pettus) SCANNED MAY 1 120? BP Alaska-Well Integrity Coordinator GVVGlobal Wells Y Y Organization Office: 907.659.5102 WIC Email:AKDCWellIntegrityCoordinator@bp.com From: Al-R71-%C-4,4/.01 Integrity Coordinator Sent: Thursday, October-4-5,_2015 6:42 PM To: AK, OPS FS1 OSM; AK, OPS FS.Lfacility OTL; AK, OPS FS1 Field OTL; AK, OPS FS1 DS Ops Lead; AK, OPS PCC EOC TL; AK, D&C Well Services Operations Superintendent; AK, D&C Wireline Operations Superintendent; Cismoski, Doug A; Daniel, Ryan; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS EOC Specialists; AK, OPS Prod Controllers; G GPB FS1 Drillsites; AK, OPS FS1 DS12 Operator; Stechauner, Bernhard; 'chris.wallace@alaska.gov' Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Morrison, Spencer; Sayers, Jessica; Dickerman, Eric; Regg, James B (DOA) (iim.regd(aalaska.gov) Subject: UNDER EVALUATION: Producer 12-35 (PTD #1951300) Sustainedliver Annulus Casing Pressure Above MOASP All, 1 SCIOnthel NO. Alaska Data Consulting Services f i �j y` Co 2525 Gambol! Street, Suite 400 Gv Anchorage, AK 99503 -2838 ATTN: Beth Well Job Log Description Date BL H -26 BOCV -00028 PRODUCTION LOG a 675 3,s 10/06/09 1 12 -31 B14B -00076 INJECTION PROFILE rr' 0 1 on I f 9 3 10/12/09 1 P2 -21 BOCV -00029 PRODUCTION LOG I 9g-0,S 10/07/09 1 12 -35 B2NJ -00029 MEM PROD PROFILE 10/04/09 1 12 -30 B3SQ -00030 INJECTION PROFILE t) Z(+ f l /U,Q c, 10/11/09 1 K -19AL1 B69K -00028 LDL (9n`?> --/c it�� 1 10/18/09 1 C -19B B5JN -00016 SCMTaho -(5(s f X 8 6 10/11/09 V -105 AYS4.00100 INJECTION PROFILE (J T 70 a 1 3 `2} 6_8 10/05/09 1 OWDW -SE B69K -00021 RST 0 U s9( 09/23/09 1 OWDW -NW B69K -00022 RST /(X) ---e--/6 09/24/09 1 OWDW -SW B69K -00023 RST rea 15 6a 09/25/09 1 04 -26 B5JN -00014 RST 09/26/09 1 12 -05A 40015441 OH MWIT 6 07/26/07 2 T M -19B 09AKA0028 OH MWD /LWD EDIT 01/29/09 2 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: l L) BP Exploration (Alaska) Inc. A Li Petrotechnical Data Center LR2 -1 2' 900 E. Benson Blvd. A TREE= FMC SAFETY NOTBS: HORIZONTAL WI:IL, WELLHEAD= ACTUATOR = BA 12 ' 35 70° @ 12000' ' 9~ @ 12498' KB. B_EV = 70' BF. ELEV= . KOP = 2206' Max Angle = 92 @ 12592' Datum IVD = 11788' Datum'l'VD = 8800' SS 110-3/4" CSG, 45.5#, NT-80LHE, ID= 9.953" ld 3543' GAS LIFT MAI~DRR S ST MD TVD DEV TYPE VLV LATCH FORT DATE 1 3802 3611 41 CA KBMG BK-5 2 7449 5994 48 CA IVIVIG BK-5 L 3 9919 7689 46 CA IVIVIG BK-5 Minimum ID 3.725" 1 1702' '~' 4 11561 8744 55 CA IVIVIG BK-5 4-112" HES XN NIPPLE :><:3 X i 11669' H7-5/8"X4-1/2"BAKERS-3PKR, ID=3.875" I ! " I' 11702' H4-1/Z'PESXNNIP, ID=3.725" I I I H .?2,r ' ' i .7 ,r ITOP OF 5-~/2" LNR i-r 11731'I F~F~O~TION SUMMARY RB:: LOG: ~I~A ON 10/11~5 ANGLE AT TOP PERF: 86 @ 12325' Note: Refer to Production DB for historical perf data SIZE SFF INTERVAL Opn/Sqz DATE 2-7/8" 4 12325 - 12425 O 04/14/02 2-7/8" 4 12485 - 12865 O 04/14/02 3-3/8" 2 12880- 12900 ; O ~ 10/25/95 2-7/8" 4 12945- 12995 O i 04/14/02 3-3/8" 2 13005 - 13045 O 10/25/95 2-7/8" 4 13055 - 13175 O 04/14/02 3-3/8" 2 13195 - 13215 O 10/25/95 3-3/8" 4 13310 - 13430 O 10/25/95 2-7/8" 4 13430- 13615 O 04/14/02 3-3/8" 4 13650 - 13750 O 10/25/95 3-3/8" 4 13990 - 14020 O 10/25/95 . DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOEBAY UNIT 11/02/95 ORIGINAL COMPLETION WELL: 12-35 12/18/00 SIS-SLT CONVERTED TO CANVAS PERMIT No: 195-1300 02/26101 SIS-LG FINAL APl No: 50-029-22588-00 10/25/01 RN/TP CORRECTIONS SEC18, T11N, R15E 285.31 FEL 1971.92 FNL 04/12/02: CAO/tlh ADD PERFS BP Exploration (Alaska) SIZE SFF INTERVAL Opn/Sqz DATE 2-7/8" 4 12325 - 12425 O 04114/02 2-7/8" 4 12485 - 12865 O 04/14/02 3-3/8" 2 12880 - 12900 O 10/25/95 2-7/8" 4 12945 - 12995 O 04/14/02 3-3/8" 2 13005 - 13045 O 10/25/95 2-7/8" 4 13055 - 13175 O 04/14/02 3-3/8" 2 13195- 13215 O 10/25/95 3-3/8" 4 13310 - 13430 O 10/25/95 2-7/8" 4 13430- 13615 O 04/14/02 3-3/8" 4 13650 - 13750 O 10/25/95 3-3/8" 4 13990 - 14020 O 10/25/95 3-3/8" 4 14050 - 14110 O 10/25/95 DATE REV BY COMMENTS DATE REV BY COMMENTS 11/02/95 ORIGINAL COMPLETION 12/18/00 SIS-SLT CONVERTED TO CANVAS 02/26/01 SIS-LG FINAL 10/25/01 RN/TP CORRECTIONS 04/12/02 CAO/tlh ADD PERFS STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: ADD PERFS Operation shutdown_ Stimulate _ Pull tubing _ Alter casing _ 2. Name of Operator BP Exploration (Alaska), Inc. 3. Address P. O. Box 196612 Anchora~le, AK 99519-6612 5. Type of Well: Development _X Explorato~._ Stratigraphic__ Service_ 4. Location of well at surface 4931' FNL, 704' FEL, Sec. 18, T10N, R15E, UM At top of productive interval 818' FNL, 3860' FEL, Sec. 30, T10N, R15E, UM At effective depth 1928' FNL, 225' FEL, Sec. 25, T10N, R14E, UM At total depth 1972' FNL, 286' FEL, Sec. 25, T10N, R14E, UM (asp's 696909, 5930661) (asp's 693946, 5924136) (asp's 692503,5922990) ~sp~ 692443, 5922943) 12. Present well condition summary Total depth: measured true vertical 14222 feet Plugs (measured) 9045 feet Effective depth: measured 14145 feet Junk (measured) true vertical 9052 feet Plugging _ Ped0rate -X - ..... Repair well _ . '. l"' '" :"' Other - 6. Datum elevatioh '(DF'O~'KB f~.t.); ... RKB 70 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number 12-35 9. Permit number / approval number 195-130 10. APl number 50-029-22588-00 11. Field / Pool Prudhoe Bay Field / Prudhoe Bay Pool Tagged TD @ 14145' (04/27/2001) Casing Length Size Cemented Measured Depth True Vertical Depth Conductor 110' 20" 260 sx AS 139' 139' Surface 3514' 10-3/4" 1150 sx CS III, 375 sx 3543' 3406' Class 'G', 205 sx CS II Intermediate 11851' 7-5/8" 265 sx Class 'G' 11880' 8918' Liner 2491' 5-1/2" 285 sx Class 'G' 11731' - 14222' 8841' - 9054' Perforation depth: measured Open Peris 12325-12425, 12485-12865, 12880-12900, 12945-12995, 13005-13045, 13055-13175, 13195-13215, 13310-13615, 13650-13750, 13990-14020, 14050-14110 true vertical Open Peris 9014-9020, 9022-9028, 9029-9030, 9033-9035, 9035-9036, 9036-9038, 9039-9039, 9041-9045, 9045-9047, 9051-9051,9052-9053 Tubing (size, grade, and measured depth) 4-1/2", 12.6#, L-80, Tubing @ 11669' MD; 4-1/2", 12.6#, L-80, Tubing tail @ 11724' MD. Packers & SSSV (type & measured depth) 7-5/8" x 4-1/2" Baker S-3 PKR @ 11669'. 4-1/2" Camco TRCF-4A SSSV @ 2197' MD. 13. Stimulation or cement squeeze summary Intervals treated (measured) (see attached) Treatment description including volumes used and final pressure 14. Prior to well operation 04/06/2002 Subsequent to operation 04/17/2002 OiI-Bbl 186 Representative Daily Average Production or Injection Data Gas-Mcf Water-Bbl 313 1529 1492 12553 2571 Casing Pressure Tubing Pressure 266 72 15. Attachments Copies of Logs and Surveys run __ Daily Report of Well Operations _ 16. Status of well classification as: Oil __X Gas __ Suspended _ Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Title: Technical Assistant DeWar/ne R. Sc norr ~ Form 10-404 Rev 06/15/88 · Date April 18, 2002 Prepared by DeWayne R. Schnorr 564-5174 , SUBMIT iN DUPLICATe' 12-35 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS 03/27/2002 PERFORATING: DP,]:FT/TAG 04/08/2002 PERFORATTNG: LOAD WELL TO SECURE 04/09/2002 PERFORAT]:NG: JEWELRY LOG--DEPTH CONTROL; PERFORATING 04/10/2002 PERFORATTNG: JEWELRY LOG--DEPTH CONTROL; PERFORATING 04/11/2002 PERFORAT]:NG: PERFORATING 04/12/2002 PERFORATTNG: PERFORATTNG EVENT SUMMARY O3/27/O2 DRIFT W/2' STEM, 3.25 CENT, AND SAMPLE BAILER TO 12061' SLM ( STOPPED DUE TO DEVIATION ). RDMO / TURNED WELL OVER TO PAD OPERATOR. 04/08/02 LOAD I.A. WITH 176 BBLS. CRUDE AND10 BBLS. MEOH. 04/09/02 MIRU CTU #5 ON WWP. SPOT ON WWP. BEGIN WEEKLY BOP TEST. 04/10/O2 BEGIN WEEKLY BOP TEST. REPAIR LEAKING CHICKSAN ON FLOWBACK LINE. PT HARDLINE. MEM. GR/CCL LOG INTERVALI 14120'-12200' CTM, FLAGGING PIPE AT 13550', 13040', 12450' AND LAYING IN 50 BBLS FLOPRO. LOG SHOWED-16' DEPTH SHIFT +10.45' TOOLS---CORRECTED EOP- FLAG DEPTH -26.45'. MU AND RIH W/2-7/8" TCP GUNS TO SHOOT FIRST INTERVAL OF 13430'- 13615'. JOB IN PROGRESS. 04/11/02 RIH W/2-7/8" HSD PJ 2906 4 SPF TCP GUNS, SHOOT INTERVAL 13430' - 13615'. POOH, PUMP 50 BBLS KCL WATER TO OVERBALANCE WELL. LAY BACK 1ST RUN GUNS. MU 2ND RUN GUNS, RIH, CORRECT TO FLAG, SHOOT 12945' - 12995', 13055' - 13175', POOH, LAY DOWN RUN #2. MU AND RIH W/GUN RUN #3. CORRECT AT TOP FLAG TO 12423.5', PUH TO SHOOT 12325' - 12425' AND 12485' - 12865'. O4/12/o2 RIH WITH 3RD AND LAST 2-7/8" GUN RUN. SHOOT INTERVALS 12325'-12425' AND 12485'-12865'. POOH, PARK AT 200', WO SWS TCP SPECIALIST, LAY DOWN FINAL GUN RUN. FREEZE PROTECTED WITH 60/40 METHANOL. AFTER PLATFORM RD POP WELL FOR 2 DAYS BEFORE TESTING. ***SHUT-IN*** Fluids Pumped BBLS 12 METHANOL 445 60/40 METHANOL 176 CRUDE 90 1% KCL WATER 90 FLOPRO 50 SNOW MELT WATER 863 TOTAL Page 1 12-35 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS ADD PERFS 04/10-12/2002 THE FOLLOWING INTERVALS WERE PERFORATED USING 2-7/8", 2906 PJ, 4 SPF, 60 DEGREE PHASING, RANDOM ORIENTATION. 12325'-12425' 12485'-12865' 12945'-12995' 13055'-13175' 13430'-13615' Page 2 REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown_ Stimulate _X Plugging _ Pedorate _ Pull tubing _ Alter casing _ Repair well _ Other _ 2. Name of Operator BP Exploration (Alaska), Inc. 3. Address P. O. Box 196612 Anchorage, AK 99519-6612 4. Location of well at surface 4931' FNL, 704' FEL, Sec. 18, T10N, R15E, UM At top of productive interval 818' FNL, 3836' FEL, Sec. 30, T1 ON, R15E, UM At effective depth At total depth 1972' FNL, 286' FEL, Sec. 25, T10N, R14E, UM 5. Type of Well: Development __X Exploratory__ Stratigraphic_ Service__ (asp's 696909, 5930661) (asp's 693946, 5924136) (asp's 692443, 5922943) 6. Datum elevation (DF or KB feet) RKB 69.6 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number 12-35 9. Permit number / approval number 195-130 10. APl number 50-029-22588 11. Field / Pool Prudhoe Bay Oil Pool 12. Present well condition summary Total depth: measured true vertical 14222 feet 9054 feet Effective depth: measured 14145 feet true vertical 9052 feet Casing Length Size Conductor 110' 20" Surface 3473' 10-3/4" Production 1 1810' 9-7/8" Liner 2491' 5-1/2" Plugs (measured) Junk (measured) Tagged PBTD @ 14145' MD on 4/27/2001. Cemented Measured Depth True Vertical Depth 260 Sx AS 110' 1 10' 1150 Sx CS III, 375 Sx Class G, 3543' 3406' & 205 Sx CS II 265 Sx Class G 11880' 8918' 285 Sx C~ass G 14222' 9054' Perforation depth: measured 12220' - 14110'. true vertical 9005' - 9051' Tubing (size, grade, and measured depth) 4-1/2", 12.6#, L-80 Tbg @ 11724' MD. Packers & SSSV (type & measured depth) 7-5/8" X 4-1/2" Baker S-3 Packer @ 11669' MD. 4-1/2" Camco TRCF-4A SSSV Nipple @ 2197' MD. RECEIVED ', ,, '" 2001 0i~ & G~.s Cons. Oommiss]ol~ Anchora.¢e 13. Stimulation or cement squeeze summary Intervals treated (measured) (see attached) Treatment description including volumes used and final pressure 14. Prior to well operation Subsequent to operation OiI-Bbl 227 Representative Daily Average Production or Injection Data Gas-Mci Water-Bbl 746 970 340 1350 2789 Casing Pressure Tubing Pressure - 305 313 15. Attachments Copies of Logs and Surveys run __ Daily Report of Well Operations __X 16. Status of well classification as: Oil __X Gas __ Suspended _ Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed /~,.f~'. ~)~ Title: DS l2 Surveillance Engineer Andy Parker Date Mav 17, 2001 Prepared by Paul Rauf 564-5799 Form 10-404 Rev 06/15/88 · SUBMIT IN DUPLICATE 12-35A DESCRIPTION OF WORK COMPLETED ACID STIMULATION Date Event Summary 4/11/2001' 4/17/2001- 4/26/2001- 4/27/2001' RIH & drifted to 12069' SLM (HAW). TI FL passed. Performed a CT Acid Wash Stimulation as follows: MIRU CTU. Completed MIRU of CTU. PT'd equip to 4000 psi. Bled annulus to 200 psi. Killed well w/ 350 bbls of 2% KCI Water. RIH w/CT & jetted w/2% KCI Water f/12220' to 14145' MD. PUH to 12200'. Bullheaded 143 bbls of Crude down backside. Washed 25 bbls of 12% HCI 10% Xylene across the open perforation intervals located f/: 12220' - 14110' MD (Zone 4/HOT) Reference Log: BHCA 10/11/1995. Let soak for 1 hr. Jetted an additional 50 bbls of 12% HCI/10% Xylene across perforation interval. Flushed w/150 bbls of 2% KCI Water & POOH w/CT. RD CTU. Placed well BOL & performed a welltest. Page 1 95 i30 95 .... i30 95 'i 30 .9.S .- 'i 30 95 ..... I:'0,. ~5~ 'i30 ,Seo'to,~l'¥ca'l Hater"¥ai s ln'v'entor'y DATA T DATA._F'L. US F' a ,~:i e ' J ii:, a 't e:0 7 ...' 2 ''~' '"'9 7 [::-: I I i",i E,' ,'-','T'E R E r' V D 10-/407 DAI[,,¥ WELL OPS dry ct'Ytch samp'les W:t~s the we'l'l c,::)r"ed? ~,3 2' M F' L E T ':]: O N D A T E la /'A ,) / q MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: THRU: Julie Heusser, Commissioner ¢~ Tom Maunder, ~ P. I. Supervisor'-"' DATE: May 7, 2001 FROM: Chuck Scheve; SUBJECT: Petroleum Inspector Safety Valve Tests Prudhoe Bay Unit Drill Site 12 Monday. May 7, 200,1.: I traveled to BPXs Drill Site 12 and witnessed the semi annual safety valve System testing. As the attached AOGCC Safety Valve System Test Report indicates I witnessed the testing of 21 wells and 42 components with 1 failure. The surface safety valve on well 12-12 had a slow leak when pressure tested. This valve was serviced and retested by the operator on this date. Bill Preston (lead DS operator) performed the testing today; he demonstrated good test procedures and was a pleasure to work with. A walk through inspection of the well houses on this pad was performed during the SVS testing with no problems noted. All well houses inspected were reasonably clean and all equipment aPpeared to be in good condition. Summary,: I witnessed the semi annual SVS testing at BPXs Drill Site 12. PBU DS 12, 21 wells, 42 components, 1 failure 2.3% failure rate 29 wellhouse inspections Attachme,nt: SVS PBU DS 12 5-7-01 CS X Unclassified Confidential (Unclassified if doc. removed ) Confidential · SVS PBU DS 12 5-7-01 CS Alaska Oil and Gas Conservation Commission Safety Valve System Test Report Operator: BPX Operator Rep: Bill Preston AOGCC Rep: Chuck Scheve Submitted By: Chuck Scheve Date: Field/Unit/Pad: Prudhoe / PBU / DS 12 Separator psi: LPS 160 HPS 5/7/01 Well Permit Separ Set L/P Test Test Test Date Oil, WAG, GIN& Number Number PSI PSI TAp Code Code Code Passed GAS or CYCLE , 12-01 1790230 , 12-02 1790320 12-03 1790410 160 150 150 P P OIL 12-04A 1811870 160 150 150 P P OIL , , , 12-05 1790550 12-06A 1920540 160, 150 150 P P OIL , , , 12-07A 1811750 160' 150 140 P P OIL 12'08B 1811670 160' 150 140 P P ..... OILi 12-09 1800930 160 150 125 P P OIL 12-10A 1920890 160 ' 150 150 P P ' 0IL , 12-11 1810730 12-12 1810830 160 150 90 P 4 OIL 12-13B 1960170 160 ' 150 ' '150 P ' e , , 12-14A 1981460 160 150 150 P P OIL 12-15 1830320 160 150 150 P P OIL 12-16A 1931480~' '160 150 ,150 P P OIL 12-17 18300401 160 150 1501 P P OIL , , ,12-18 1822060 160 150 150 P P OIL 12-19 1821980 12-20 1821910 12-21 1840480 12-22 ' 1840600 '1'60 150' 125 P P OI'L~ 12-23 1840580 12-25 1831660 12-26 1840140 ' 160 150 '"125 P P ''0IL , ,, , , 12-27A 1990390 12-28A 1990330 160 150 170 P P OIL 12-29 1840320 12-30 1881420 ~ , , ,12-31 1890010 12-32 1'896110 160 150 150 P' P " 0IL 12-33 1890100 12-34 "i941370 i60 150 '150 ' P' P OIL ~,~t~:35~'''''''':''''' ......... ~'9'51300 160 '" 150 100 ' - 12-36 1951580 160 150 150 P P OIL , , RJF 1/16/01 Page 1 of 2 SVS PBU DS12 5-7-p4.~C.S "WeB I-permit ] Separ '~et ' LiP' 'I 'T~st ]"Ti'si ]"~e~t I ' Date Number ]Number ] PSI PSI Trip ] Code ! Code[ Code ] Passed ! OASorC~CLE Wells: 21 Components: 42 Failures: 1 Failure Rate: Remarks: Surface Safety Valve on well 12-12 had slow leak when pressure tested. RJF 1/16/01 Page 2 of 2 SVS PBU DS12 5-7-01 CS d rvices rilling 900 East Benson Boulevard, MB 8-1 · Anchorage, Alaska 99508 (907) 561-5111 Fax: (907) 564-5193 December 14, 1998 Wendy Mahan Natural Resource Manager Alaska Oil & Gas Conservation Commission 3001 Porcupine Dr. Anchorage, AK 99501-3192 RECEIVED Re: Annular Disposal Information Request DEC 141998 Dear Ms. Mahan: · Alaska Oil & Gas Cons. Commission ·Anchorage On October 28, 1998 you requested an update from Shared Service Drilling regarding Annular Disposal Records from July 25, 1995 through present time. We compared your list with our records and are able to provide you with the following data: · Individual Annular DiSposal Logs from the SSD database which coincide with the approved wells on your attached AOGCC Annular Log. The.SSD records are proVided to you in the same order as listed on your log. · There were some Wells on your list which were not injected into. These wells are identified as follows: · Endicott wells 1-03/P-16, 1,65/N-25, 1-59/0-24 · Exploration well Pete's Wicked #1 · Milne Point wells E-22, E-23, F-O1, L-16, J-19, L-25, F-30, L-21, K-38, NMP #1 & #2, K-05, K-02, H-07, K-25, K-37, E-17, F-21, K-30, K-34, K-21i, F-66, K-06, K-54, K-33, F-49i, K-18 · PBU Wells E-38, 18-34, 15-42, S-29A, 15-46, B-36, 15-43, 11-38 · The reason many of these annuli were not used is because the waste materials generated from these wells were injected into other approved annuli. Hopefully the injection logs submitted with this letter will clarifY this. In addition, please note that our records show: · The wells listed above in italics were permitted but not used for annular disposal. · The wells listed above in BOLD were not permitted for annular disposal. Wells drilled after June 6, 1996 were required by SSD procedure to be permitted with a Sundry ' Approval (10-403) form. Our records show that no Sundry Approval for Annular Disposal was filed for these wells. Wells drilled between July 25, 1995 and june 6, 1996 were automatically approved for annular disposal with the Permit to Drill. · We also provide you with a cumulative report from our database of records from July 25, 1995 through the present. From those records, we show the following wellS not listed on your report were used for annular disposal: ~ ,Annular Disposal Letter .'. 12/14/98 · Endicott wells 1-23/O-15, 1-61/Q-20, 2-40/S-22 · Exploration well Sourdoueh #3 - s~" o o ~5 ,~, · Milne Point wells ~]'{~~'nr_' q ~ ~'"~_ / ~ ~_ . ' r ~ ~ ~ ,~-~o ~06, J 13, L24 qs ~ PBU wells 18-30, 18-31, 14~,~-43, ~-34, E-36, G-04A, ~d S-33- ~'~*~ hdividu~ logs ~e provided to ~ou fo~ t~ese ~ogs as we~l. · Finally, our records show that the B-24 outer annulus was left open (see attached correspondence) Thank you for the opportunity to provide clarity to these records. If I can be.of any further assistance please do not hesitate to contact me at 564-5183, or Karen Thomas, Environmental Advisor at 564-4305. Sincerely, Fritz P. Gunkel Shared Service Drilling Manager FPG/KMT CC: Dave Wallace - HSE Manager (w/out attachments) SGANNE D NOV ]L 2OD2 RECEIVED OEC !4 1998 Alaska 0ii & Gas C0ns.'C0mmissi°n Anchorage , h red ice8 rilltng TO: FROM: DATE: SUBJECT: APl # Blair Wondzell Chris West October 27, 1995 MPB-24 Well Suspension 50-029-22642 Blair; Please find attached a copy of the Form 10-403 to temporarily suspend this well as per AOGCC 20- AAC 25.110. As discussed this morning we propose setting three plugs in this well as detailed in the attached form. 'This will allow us to retain the wellbore for potential future sidetrack or service well use. We would like to keep the well's 9-5/8" x 7" annulus available for the injection of liquid 'wastes. There are no other well annulii on this pad for injection. The annulus for MPB-24 was approved for injection as part of the permit dated 25 January 1996. The annulus will be freeze protected before moving the rig. Thank you for your help in this matter. Please call me if I maY be of any assistance, Chris West Drilling. Operations Engineer , Nabors 27E (907)-564-5089 ANNULAR INJECTION DATA ENTRY SCREEN Asset ED.,& ........................................... Rig Name ~J.{Ib.c!r.~...l..8.F~ ............................. Inj Well Name .1.~:.3.§ .......................................... Sur Csg Dep ~1.5..4.3. ................ Cumulative Data Permit Start ......... .9.:.1.:.9.5. ......... Legal Desc ;~.6:~.~;.I.,..7.ffS.'.~.l~L.~.e.c...1..8.,.'[r..1..0.~,.~..4.E ....................................... Research Permit End ........1.~.:3.1/~t.5. ....... Rig completion Formation Intermittant Final~ Well Total Mud/Ctg Wash .FlUids FlUids Freeze Freeze Daily Data DS12-35 10/10/95 125 125 3.5 BPM @ 880 PSI DS12-35 i10/11/95 219 I ! 219 3 BPM @ 800 PSI ]S12-35----10/11/95 282 / I 282 2.8 BPM @ 950 PSI DS12-35 10/11/95 I 170 ! i 70 CUT WASH-UPP 3 BPM- 800 PSI ~§~;-,~ ........ -~'~/~ ...... i]'-~ ............ --~-- '1- I ' 115 1.7 BPM- 975 PSI ~ ~':~ ..... ~ 0i~'~,/~5 ....... ~, .......................................... [ ....................................... 1 ............................ _ ........... i .......... : .......... !95 ................ ..................................... :§i¢ ............... i'f~i ~]~8 ......... 4~5 ................................................................................... ~ ...................... , 465 ......................... ~.. ¢'"~"z-~'O-'is~J ................................................. b~'~i''~:~ ......... i'S/i'~/i~ ....... :~§~ ........................................................................................................................................................................ §§~ ....................................................... 5§'i2%§8 .......ib/i~i~8' 56 ................................................... 88 ................................................... §;~ ~P~- -'~88 ~J ........... : .......... I 250 3.0 BPM - 800 PSI DS12-35 10/19/95 250 DS12-35 '-- 10/23/95 82 82 4.0 BPM - 800 PSI -- DS12-35 10/24/95 210 210 4.0 BPM - 800 PSI 390 4.0 BPM - 800 PSI DS 12-35 110/25/95 390 DS12-35 10/25/95 ' ........................ i_~ ............. 150 150 CRUDE OIL ! Shared SerViCe Ehilling AnndTar Injection Volumes July 25, 1995 until December 1998 Cumulative Report Rig - Inj Well · Endicott Doyon 15 1-19/I-18 Doyon 15 1-23/O- 15 Doyon 15 1-33/M-23 Surface Casing Depth Legal Desc 5000 Sec. 36, T12N, R16E 4246 2020'FNL, 2087'FEW, SEC.36.T12N,R16E 5013 3217'NSL, 2114'WEL, Sec 36.T12N, R16E Cum Total Cum Mud & Ctgs 8,960 7,848 _ . 32,084 30,604 _ . . 9,879 9,729 Cum Rig Cum Compl Cum Form Cumlnlerm Cum Final Disposal Period Annulus Wash Fluids Fluids Freeze Freeze Stad End Slalus · _ . 992 120 12/5/95 12/5/96 Open 1.160 200 120 9/30/95 12/31/95 Open 150 8/31/95 12/31/95 Broached Doyon 15 1-61/Q-20 4236 3075'NSL~ 2207'WEL, Sec 13,T12N, R16E 25,228 21,379 . _ . Doyon 15 2-40/S-22 4531 2020'FNL, 2289'FEL, Sec 36,T12N, R16E 31,195 29,952 EOA 2,613 . 1,176 60 12/5/95 12/5/96 Open 1,063 120 60 7/25/95 12/31/95 Open Doyon 14 15-47 3515 3648'NSL, 4956'WEL, Sec 22,T11N, R14E 3,002 903 2,009 90 11/7/95 12/31/95 Open ~)oyon 14 DS 15-45 3829 4749' NSL, 5180' WEL, Sec. 22, T11N, 1,882 1.697 134 51 4/4/96 4/4/97 Broached )oyon 14 DS 15-48 3548 Sec. 221T11N, R14E 3.385 216 820 2,283 66 12/21/95 12/21/96 Open )oyon 14 DS 15-49 3667 4676' NSL, 5165' WEL, Sec. 22, T11N, 4,669 1,559 1,141 1,904 65 2/21/96 2/21/97 Open )oyon 9 - 18-30 3930 1499'SNL, 26'WEL, Sec 24,T11N, R14E 2,266 936 380 800 150 7/25/95 12/31/95 Open )oyon 9 18-31 3680 3719'NSL, 64'WEL, Sec 24,T11N, R14E 6,086 2,250 1,100 2,565 171 7/26/95 12/31/95 Open )oyon 9 18-32 3830 3632;NSL, 41'WEL, Sec 24.T11N, R14E 3,31 ! 1,861 200 1,100 150 8/24/95 12/31/95 Open )oyon 9 18-33 4140 3690'NSL..56'WEL, Sec 24.T11N. R14E 5,215 2,050 3,035 10 120 9/28/95 12/31/95 Open _. labors 18E 12-35 3543 348'NSL, 705~VEL, Sec 18.T10N. R14E 3,723 3,436 137 150 9/1/95 12/31/95 Open labors 18E 12-36 3452 63'FSL, 899'FEL, Sec 18,T10N, R15E 4,002 1,961 50 1,871 120 10/13/95 12/31/95 Open labors 18E 13-36 3431 1585'NSL, 5187~VEL, Sec 13,T10N. R14E 4,137 3.523 464 150 10/26/95 12/31/95 Open labors 18E 14-44 3288 2829'NSL. 1617'WEL, Sec 9.T10N, R14E 3,974 2,319 1,535 120 8/17/95 12/31/95 Open xploration ' ool 4 Sourdough #3 4236 2245'FSL, 5067' FEL, Sec. 29, T9N, R24E 5,786 4,630 1,156 . 1/26/96 1/26/97 Closed lilne 27E MPK-17 3508 3648'NSL,2100'WEL, Sec.03,T12NR11E 19,608 18,538 285 685 100 4/18/96 4/18/97 Open abors 22E MPC-23 4941 1038 NSL, 2404 WEL, Sec 10,T13N, 2,060 1,800 130 130 1/25/96 1/25/97 Open abors 22E MPC-25 8595 1143'FNL, 2436'FWL, Sec 10,T13N, R10E 1,905 1,465 .300 140 1/5/96 1/5/97 Open abors 22E MPC-26 4704 1086 NSL, 2419 WEL, Sec 10,T13N, 5.228 4,483 555 190 12/19/95 12/19/96 Open abors 22E MPC-28 5405 Sec 10,T13N, R10E 425 350 75 2/15/96 2/15/97 Open Page 1 C;ANN U NOV ! '2DD2 .DEC 1 I tB8 tjt~ ,~ k:~SS COilS. An or o Shard Service Drilling Annul'ar InjeCtion Volumes July 25, 199~ until December 1998 Cumulative Report Surface Casing Rig Inj Well Depth Legal Desc Nabors 22E MPF-06 8766 Sec 06,T13N, R10E ._ . Nabors 22E Nabors 22E Nabors 22E MPF-14 . ._ MPF-70 MPH-05 Cum Mud Cum Rig Cum Total & Ctgs Wash 1,927 1,731 6690 Sec'06,T13N, R10E UM 18,717 17,1_07. _ 1,27~0 _ 7919 2189'NSL, 2591'WEL, Sec 6,T13N, R10E 19,775 18,794 735 ... 5335 2882'NSL, 4028~NEL, Sec 34,T13N, R10E 8,283 7,711 382 Cum Compl Cum Form Cum Interm Cum Final Disposal Period Annulus Fluids Fluids Freeze_ . Freeze Start End Slalus 196 1/25/96 1/25/97 Open 340 6/3/96 6/3/97 Open .. . 190 56 6/17/96 6/17/97 Open 190 8/19/95 12/31/95 Open Nabors 22E MPH-06 _ _ Nabors 22E MPI-07 - Nabors 22E MPJ-13 Nabors 22E MPJ-16 Nabors 27E B-24 7304 . 2824'NSL, 4044'W.E~_L,__Sec _347-13N, R10E 8,515 . 8,335 2680 2339'NSL, 3906'WEL, Sec 33,T13N, R10E 1,680 1,280 ._ 2835 2319'NSL, 3179'WEL, Sec 28,T13N, RIOE 14,127 13,292 3112 2317'NSL, 3336'WEL, Sec 28,T13N, R10E 985 915 4080 Sec 18,T13N, R11E UM 1,468 1,396 250 645 72 180 8/5/95 12/31/95 Open 80 70 9/21/95 12/31/95 Open 60 130 10/17/95 12/31/95 Open 70 11/12/95 12/31/95 Open 1/25/96 1/25/97 Open Nabors 27E MPF-22 Nabors 27E MPF-25 8841 sec 06,T13N, R10E UM 6,536 6,466 7O 12/12/95 12/12/96 Open 12/26/95 12/26/96 Open 3405 i857'NSL 2696'WEL, sec 6,T13N, R10E ' 9,897 9,357 250 225 65 Nabors 27E MPF-37 6621 1931'NSL, 2643'WEL, Sec 6,T13N, R10E 7,032 6,887 70 75 7/25/95 12/31/95 Open Nabors 27E MPF-38 8561 1994'NSL, 2731'WEL, Sec 6,T13N, R10E 9,232 9,157 75 12/6/95 12/31/95 Open Nabors 27E MPF-45 6678 1979'NSL 2608'WEL, Sec 6,T13N, R10E 17,562 17,381 181 7/31/95 12/31/95 Open Nabors 27E MPF;53 6750 2028'NSL, 2572'WEL, Sec 6,T13N, R10E 6,051 5,671 165 75 60 80 8/19/95 12/31/95 Open 75 Nabors 27E MPF.61 6585 2077'NSL, 526'WEL; Sec 31,T14N, R10E 5,732 5,657 8/31/95 12/31/95 Open Nabors 27E MPF-62 6059 2141'NSL, 2627'WEL, Sec 6,T13N, R10E 386 316 70 10/13/95 12/31/95 Open 75 8/31/95 12/31/95 Open Nabors 27E MPF-69 5772 2125'NSL, 2502'WEL, Sec 6,T13N, R10E 9,740 91665 2237'NSL 2555'WEL, Sec 6,T13N, R10E 8,476 7,456 40 775 65 140 9/12/95 Nabors 27E MPF-78 7085 Nabors 27E MPL-24 6515 WOA 18E F-33 3570 3654'NSL 5180'WEL, Sec 8,T13N, R10E 6,790 4,900 1,320 165 3332'NSL, 2174'WEL, Sec 2,T11N, R13E 1,468 183 660 465 12/31/95 Open 335 70 11/27/95 12/31/95 Open 2642'NSL, 2878'WEL, Sec 2,T11N, R13E 6,963 1,998 1,359 3,471 160 2/21/96 2/21/97 Open 135 12/18/95 12/18/96 Open 18E F-36 3691 __ ' ~oyon 9 D-30 3456' 3625' NSL, 1066' WEL, SEC. 23, 'r11N, 5,261 2,811 1,275 1,035 140 1/31/96 1/31/97 Open ;)oyon 9 D-31 3215 SEC. 26, T11N, R13E 150 150 4/20/96 4/10/97 Open ~oyon 9 D-33 3222 2965' NSL, 1067' WEL, SEC. 23, T11N, 4,661 2,425 : 2,106 130 2/21/96 2/21/97 Open ~labors 18E S-43 3121' 4211'NSL,4503'WEL, SEC35,T12N,R12E 5,943 2,636 1,716 1,511 80 5/7197 5/7198 OPEN Page 2. Shared, 9. ei;~ice Drilling AnnUlar Injection Volumes July 25, 1995, until December 1998 Cumulative Report Surface · Cum Mud Casing Rig Inj Well Depth Legal Desc . Cum To. tal & Ctgs Nabors 285 B-33 3504' 969'SNL, 1898'EWL, Sec 31, T11N, R14E . ._ ?,.9_ _7_4_ __ _. _2,~842 Nabors 285 E-34 3664 168'SNL, 500'WEL, Sec 6, T11N, R14E 9,656 7,228 . . Uabors 285 5-36 3648 1706'SNL, 822'WEL, Sec 6,'T11N, R146 ._9.,?_1_ ..... 4_,477 .. .. _. . Nabors 285 E-37 3810 3391'NSL, 881~NEL, Sec 6,TllN, R14E 4,695 4,241 Cum Rig Cum Compl Cum Form Cum Interm Cum Final Wash Ru~s Fluids Freeze Freeze 857' 195 80 ~ . . . . 1,420 858 40 110 1,293 3,096 365 _. 100 374 80 Nabors 285 E-39 3638 3358'NSL, 501'WEL, Sec 6.T11N, R14E 2,250 . . _ Nab'ors 285 G-04A 3509 2917'NSL, 1974'WEL, Sec 12,T11N, R13E 5,937 . ..... ~ Nabors 285 G-21 3509 2911'NSL, 2368'WEL, Sec 12,T11N, R14E 11,430 Nabors 285 S-24 2750 1633'SNL, 4228'WEL, Sec 35,T12N, R12E 20,261 11,773 2,177 5,751 Nabors 285 S-33 2958 1639'SNL, 1487~/EL, Sec 35,T12N, R12E 18,014 6,613 2,431 8,392 928 220 1,022 1,798 1,824 2,315 3,956 3.072 4,270 80 70 '62 Disposal Period Annulus Start End Status 5/1/96 12/31/96 Broached 8/23/95 12/31/95 O ~en , 7/25/95 12/31/95 O ~en 9/16/95 12/31/95 O~en 8/28/95 12/31/95 O~en . · 10/20/95 12J31/95 O~en ...... . 9/8/95 12/31/95 O Ben .~. 12/9/95 1 2/9/96 Open 12/1/96 Open 275 285 270 308 12/1/95 N ab.o?_ _2_8__E_: Nabors 285 S-41 3331 4152' NSL, 4504' WEL, Sec 35,T12N, S-42 3077 Sec 35, T12N, R12E 8,062 4,159 2,034 1,754 168 100 115 2/8/96 2/8/97 Open 68 3/13/96 3/13/97 Open Nabors 2ES H-35 3157 4535'NSL, 1266'WEL, Sec 21 ,T11N, R13E 4,860 3,725 555 480 20 80 10/26/95 12/31/95 Open Nabors 2ES H-36 3550 4478'NSL, 1265'WEL, Sec 21,T11N, R13E 1,452 857 100 410 ' 85 10/26/95 12/31/95 Open Page 3 STATE OF ALASKA { ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION CFI FIECOMP LETION FIEPORT AND LOG 1. Status of Well Classification of Service Well OIL tx1 GASE] SUSPENDED I-I ABANDONED F-I SERVICE[] 2. Name of Operator 7. Permit Nu~d:~rh' /.~' ARCO Alaska,/nc. 95-130 3. Address 8. APl Number P. O. Box 196612, Anchorage, Alaska 99519-6612 5o- 029-22588 ' 4. Location of well at surface 9. Unit or Lease Name I~'tOCA; lo.Prudh°e Bay Unit Well Number 348' NSL, 704' WEL, SEC. 18, TION, R15E ~":,.":-: ............. T At Top Producing Interval j ,'-:' -: .... i.'. i ~ .... '- ' ~ 12-35 818' SNL, 3836' WEL, SEC. 30, TION, R15E ! : ; ' ,~--' -, ~-~,-r, ;' ~' 11. Field and Pool At Total Depth ! r..,~l~lE.) ~ , _ .... Prudhoe Bay Field/Prudhoe Bay Pool 1971' SNL, 253' WEL, SEC. 25, TION, R14E 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Serial No. KBE = 69.60 I ADL 028316-2 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 115. Water Depth, if offshore 116. No. of Completions 09/24/95 10/19/95 10/27/95I N/A feet MSLI One 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD 19. Directional Survey 120. Depth where SSSV set 21. Thickness of Permafrost 14222'MD/9054'TVD 14141'MD/9053'TVD YES [] NO []I 2197 feet MD 1900' (Approx.) 22. Type Electric or Other Logs Run MWD, Gyro, GR, SP, DIL, DEN, Sonic, RES, CLL 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER FF. GRADE TOP BO'FrOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" 91.5# H-40 Surface 11 O' 30" 260 sx Arctic Set (Approx.) 10-3/4" 45. 5# NT80 30' 3543' 13-1/2" ~ 15o SX CS III, 375 sx 'G°, 205 sx CS II 7'5/8" 29. 7# USS-95 27' 11880' 9-7/8" 265 sx Class 'G' 5-1/2" 17# L-80 11731' 14222' 6-3/4" 285 sx Class 'G' !24. Perforations open to Production (MD+TVD of Top and Bottom and 25. TUBING RECORD interval, size and number) SIZE DEPTH SET(MD) PACKER SET (MD) 3-3/8" Gun Diameter, 2 spf 4-1/2" 11724' 11669' 12880'- 13215' 9029'- 9039' ~.6. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 3-3/8" Gun Diameter, 4 s/of Freeze Protected w/ D/ese/ MD 7VD 13650'- 14110' 9045'- 9053' 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.) November 17, 1995 Gas Lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKESIZE IGAS-OIL RATIO TEST PERIOD I Flow Tubing Casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. 24-HOUR RATE I~ 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips, and presence of oil, gas or water. Submit core chips. ORIGINAL FEB 0 6 Form 10-407 Submit in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE 29. ~ 30. ~ "" GEOLOGIC MARKERS FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. Sag River 11869' 8914' Sadlerochit 12301' 9013' 31. LIST OF A'I-I'ACHMENTS 32. I hereby certify that the foregoing is true and correct to the best of my knowledge ~ ~J~,o/~(,, Signed /~,~/t ~ Title SeniorDri//ingEngineer D at e ~'/~"'/~ ~ INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and Icg 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". Form 10-407 I I t I I I I .. :, .. Rig Name iN18E · Inj. Well Name i 12-35 . 348'NS , 704' WEL,.SEC 18, T10N, R15E' ~t.;: - I i ..... -- SurfCsgDep ,3543 I ' ........................................ .............e_ Well Cum Total ~:~::~::~'.:.~ Cum M d/Ctg Cum Brine Cum War r u , VOLUME (BBLS Method of displosal=pumping down outer annulus SOURCE WELL DATE OF DIESEL/FREEZE MU[)/CTGS BRINE WATER Daily Cum. Total COMPLICATIONS, COMMENTS NUMBER INJECTION PROT. DS 12-35 10/9/95 2501 0. 0 0 250.00 3.5 BPM 800 PSI .......... DS 12-35 1 0/9/95 0 i 0.00 67.00 0.00 67;00.CMT WASH-UP 3.5 BPM 800 PSI ............. DS 12-35 10/10/95 125! 0.00 0.00 0.00 125.00:3.5 BPM @ 880 PSI DS 12-35 10/11/95 2191 0.00 0.00 0.00 219.00 3BPM @ 800 PSI DS 12-35 10/11/95 282 .... 0.00 ....... 0.00 i: ~)~'~ 0 282.0:O 2.8 BI~M @ 950 PSI ............. DS 12-35 10/11/95 0.00 .. 0.00 70.00 ......... 0.00 . 70.OOCM~..VVASH-UP3BPM-800PSI ........ DS 12-35 10/12/95 115.00~ 0.00 0.00 0.00 11'5.00~1.7 BPM - 975 PSI ............ DS 12-35 1 0/1 3/95 415.00: 0.00 0.00 0.00 415.00 3.5 BPM - 1,000_PS~I DS 12-35 10/15/95, 195.00i 0.00 0.00 0.00 195.00 1.5 BPM - 1,000 PSI .......... DS 12-35 1 0/16/95 465.00! 0.00' 0.00 0.00 465.00:3.5 BPM - 800 PSI DS 12-35 1 0/17/95 382.001 0.00' 0.00 0.00: 382,0013.5 BPM - 850 PSI DS 12-35 10/19/95 56.00 .............. 0.00 .... 0'.~)0 ...... 0.00 ' ' ' 56100 3.5 B~r~-800 PSI DS 12-35 10/19/95 250.00 .... 0~'~)'~" 0.00 '0.'0'~' 250.00"3.~'i3PM-800 PSI DS 12-35 10/23/95 82.00 0.'0'0 ' 0.~)01 0.~0" 82.00 -,~'.0' BPM- 800 PSI DS 12-35 1 0/24/95 210.00 0.00 ...... 0.0O" 0.00 210.00 4.0 BPM~800 PSI- ............. ~:~~ ..... moo o.o0 . . 0.00 ............. 0.00 / 0.00 o.oO- ...................... 0.oo' ' ............. i ' BP/AAI SHARED SERVICE DAILY OPERATIONS PAGE: 1 WELL: 12-35 BOROUGH: NORTH SLOPE UNIT: PRUDHOE BAY FIELD: PRUDHOE BAY LEASE: API: 50- PERMIT: APPROVAL: ACCEPT: 09/24/95 06:00 SPUD: 09/24/95 06:00 RELEASE: OPERATION: DRLG RIG: NABORS 1SE WO/C RIG: NABORS 1SE 09/17/95 ( 1) TD: 0'( 0) RIG MAINTENANCE RIG MAINTENANCE MW: 0.0 VIS: 0 09/18/95 (2) TD: 0'( 0) RIG MAINTENANCE RIG MAINTENANCE MW: 0.0 VIS: 0 09/19/95 (3) TD: 0'( 0) RIG MAINTENANCE RIG MAINTENANCE MW: 0.0 VIS: 0 09/20/95 (4) TD: 0' ( 0) 09/21/95 (5) TD: 0' ( 0) RIG MAINTENANCE RIG MAINTENANCE RIG MAINTENANCE RIG MAINTENANCE MW: 0.0 VIS: 0 MW: 0~VIS: 0 09/22/95 (6) TD: 0' ( 0) 09/23/95 (7) TD: 0' ( 0) RIG MAINTENANCE MW: 0.0 VIS: 0 SCHEDULED SUMMER RIG MAINTENANCE. PREP RIG FOR MOVE TO DS#12-35. MOVING RIG T/12-35 MOVING RIG MW: 0.0 VIS: 0 09/24/95 (8) TD: 110' ( 110) AT WELL LOCATION, CELLAR MOVE RIG. AT WELL LOCATION, CELLAR. MW: 0.0 VIS: 0 09/25/95 (9) TD: 875'( 765) 09/26/95 (10) TD: 2940' (2065) DRILLED T/875' MW: 0.0 VIS: 0 N/U DIVERTER. ACCEPT RIG AT 0600, 09/24/95. R/U KELLY. TEST WELL CONTROL EQUIPMENT, WITNESSED BY B. FOSTER, AOGCC. CIRC AT 31', FILLED HOLE WITH MUD AND CHECKED ALL SURFACE EQUIPMENT FOR LEAKS. BHA #1, ON BOTTOM. DRILLED T/875'. DRILLED T/2940' MW: 0.0 VIS: 0 BHA #1, DRILLED T/l121'. STARTED SCHEDULED WIPER TRIP, DUE TO FOOTAGE DRILLED. POOH T/214', NO HOLE PROBLEMS. RIH TIll21', DRILLED T/2100'. POOH T/llO0', RIH T/2121' DRILLED T/2940'. WELL : 12-35 OPERATION: RIG : NABORS 18E PAGE: 2 09/27/95 (11) TD: 3555' ( 615) 09/28/95 (12) TD: 3555' ( 0) 09/29/95 (13) TD: 5110' (1555) 09/30/95 (14) TD: 6575'(1465) 10/01/95 (15) TD: 7570' ( 995) 10/02/95 (16) TD: 8665'(1095) 10/03/95 (17) TD:10105' (1440) 10/04/95 (18) TD:10300' ( 195) RAN CASING T/3000' MW: 0.0 VIS: 0 BHA #1, DRILLED T/3117'. POOH T/2047', HOLE WAS TIGHT AT 2126'. WORKED THROUGH TO CLEAN UP HOLE. RIH T/3117', NO PROBLEMS RIH. DRILLED T/3555', REACHED PLANNED END OF RUN, SECTION / WELL TD. CBU, POOH T/673'. RIH T/3555', CBU. PULL BHA. RAN 10-3/4" OD CASING T/3000' INSTALLED WEAR BUSHING MW: 0.0 VIS: 0 RAN 10-3/4" CASING T/3543', SETTING DEPTH. CBU, MIXED AND PUMPED CEMENT SLURRY. N/U BOP STACK, TEST, WITNESSED BY J. SPAULDING, AOGCC. INSTALLED WEAR BUSHING. DRILLED T/5110' (PH) MW: 0.0 VIS: 0 BHA #2, RIH T/3436', AT FLOAT COLLAR. TOOK MWD SURVEY, CORRELATE DEPTH W/MWD TOOLS. TESTED CASING. DRILLED CEMENT T/3571'. PERFORM FORMATION INTEGRITY TEST. DRILLED T/4508', POOH T/3543'. RIH T/4508', ON BOTTOM, NO HOLE PROBLEMS. DRILLED T/5110' POOH T/3500' MW: 0.0 VIS: 0 RUN BHA #2. DRILLED T/5590' POOH T/4500'. RIH T/5590'. DRILLED T/6575'. RU ATLAS WIRELINE & GYRO DATA. RAN ELECTRIC LOGS & RD UNITS. RUN BHA %2. CBU @ 6575'. POOH T/3500' DRILLING MW: 0.0 VIS: 0 RUN BHA %2. POOH T/207'. PULLED BHA. INSTALL WB & SERVICE. RUN BHA #3. RIH T/6575', ON BOTTOM. DRILLED T/7570'. DRILLING MW: 0.0 VIS: 0 RUN BHA #3. DRILLED T/7598'. START SCHEDULED WIPER TRIP. POOH T/7500', @ TOP OF CHECK TRIP INTERVAL. RIH T/7598', ON BOTTOM. DRILLED T/8634'. CBU @ 8634' HEAVY SLUG DOWNHOLE. PUMPED DRY JOB. POOH T/3543'. OK. @ TOP CHECK TRIP INTERVAL. RIH T/8634', ON BOTTOM. DRILLED T/8665'. DRILLING MW: 0.0 VIS: 0 RUN BHA #3. DRILLED T/9636'. START SCHEDULED WIPER TRIP. POOH T/8613', @ TOP OF CHECK TRIP INTERVAL. RIH T/9636', ON BOTTOM. OK ON SHORT TRIP. DRILLED T/10105'. DRILLING MW: 0.0 VIS: 0 RUN BHA #3. DRILLED T/10215'. STANDPIPE MANIFOLD FAILED, WORKSTRING. REPAIR. OK. RUN BHA #3. DRILLED T/10285'. ROP DROPPED, BIT QUIT. CBU @ 10285'. PUMP DRY JOB. HEAVY SLUG SPOTTED DOWNHOLE. POOH T/223', @ BHA. PULLED BHA. INSTALL WEAR BUSHING ON WELLHEAD. RUNNING TOOL RETRIEVED. RUN BHA #4. SERVICE BLOCK LINE. RUN BHA %4. RIH T/10285'. WASH THRU BRIDGE @ 10035', ON BOTTOM. DRILLED T/10300'. WELL : 12-35 OPERATION: RIG : NABORS 18E PAGE: 3 10/05/95 (19) TD:10500' ( 200) 10/06/95 (20) TD:l1067' ( 567) 10/07/95 (21) TD:11642' ( 575) 10/08/95 (22) TD:l1890' ( 248) 10/09/95 (23) TD:l1890' ( 0) 10/10/95 (24) TD:l1890' ( 0) 10/11/95 (25) TD:12330' ( 440) DRILLING MW: 0.0 VIS: 0 RUN BHA #4. DRILLED T/10373'. MUD PUMPS FAILED, CIRC. SERVICE MUD PUMPS. DRILLED T/10417' SERVICE PISTONS IN MUD PUMPS. DRILLED T/10424'. ROP DROPPED, BIT QUIT. POOH T/666', TO BHA. PULLED BHA. TEST BOP STACK. TEST WITNESS WAIVED BY JERRY HERRING W/ AOGCC. PULLED TEST PLUG & SET WB. MU & RUN BHA #5. RIH T/10392'. BENCHMARK SURVEY @ 6025'. WASHED 32' TO BOTTOM, NO FILL. DRILLED T/10500' DRILLED T/11067' MW: 0.0 VIS: 0 BHA #5, DRILLED T/10539'. MWD FAILED, POOH T/666'. PUMP SLUG, POOH FOR MWD TOOL. BHA #6, RIH T/10520'. FILL AT SHOE, BENCHMARK AT 6025'. HOLE IN GOOD SHAPE. WASHED 20' TO BOTTOM, NO FILL. DRILLED T/11067' POOH FOR NEW BIT MW: 0.0 VIS: 0 RUN BHA #6. DRILLED T/11642'. MAX HOURS ON BIT. CBU @ 11642'. MIX & PUMP SLUG. POOH FOR NEW BIT. LD DP T/5600' MW: 0.0 VIS: 0 RUN BHA #6. POOH T/666', @ BHA. PULLED BHA. RUN BHA #7. RIH T/11601'. WASHED T/11642', ON BOTTOM. DRILLED T/11890'. CBU @ 11890'. POOH T/9990'. AT TOP OF CHECK TRIP INTERVAL. RIH T/11860', ON BOTTOM. CBU @ 11890'. LD DP T/5600'. CBU MW: 0.0 VIS: 0 RUN BHA #7. LD DP T/2000'. SERVICE BLOCK LINES. LD DP T/666', @ BHA. PULLED BHA. RUN 7-5/8" CASING T/11880'. RETRIEVED BORE PROTECTOR. HANGER LANDED. CBU @ 11880'. DRILLING GOOD CMT AT 11375' MW: 0.0 VIS: 0 CBU AT 11880'. MIXED AND PUMPED CEMENT SLURRY. TEST CASING. TEST BOP STACK. TEST WITNESS WAIVED BY JERRY HERRING W/AOGCC. BHA #8, RIH T/11216'. TAGGED CEMENT AT 11216'. HAVE 664' CMT INSIDE 7-5/8" CASING TO DRLG. CALC CMT TOP BEHIND 7-5/8" CASING AT 11265', 615' ANNULAR FILL. DRILLED GOOD CEMENT FROM 11216' TO 11375' CIRC AND COND MUD AT 12330' MW: 0.0 VIS: 0 BHA #8, DRILLED CEMENT T/11800'. STOPPED TO TEST CASING. CBU, DRILLED CEMENT T/11890', TOP OF NEW HOLE SECTION. DRILLED T/Il900'. STOPPED TO PERFORM FIT. CIRC AND COND MUD FOR EMW TEST. EMW TEST COMPLETED. DRILLED T/12330' DRILLING 6-3/4" PILOT HOLE T/12330', TD. CIRC AND CONDITION MUD AND HOLE FOR SHORT TRIP. WELL : 12-35 OPERATION: RIG : NABORS 18E PAGE: 4 10/12/95 (26) TD:12330' ( 0) 10/13/95 (27) TD:ll900' ( 0) 10/14/95 (28) TD: 12083' ( 183) 10/15/95 (29) TD: 12250' ( 167) 10/16/95 (30) TD:12601' ( 351) 10/17/95 (31) TD:12884'( 283) 10/18/95 (32) TD:13845' ( 961) CEMENTING MW: 0.0 VIS: 0 BHA #8, POOH T/11860'. RIH T/12300', WASH 30' TO BOTTOM, NO FILL. CBU, POOH, STAND BACK BHA. RU ATLAS, RAN SP, GR, DIL, DENSITY, SONIC. BHA #9, RIH T/12330'. CBU. MIXED AND PUMPED CEMENT SLURRY. CIRC TO CLEAN UP DP. MIX AND PUMP SLUG. CBU. INJECTED CEMENT. CHANGING T/12-35 HORIZONTAL MW: 0.0 VIS: 0 PULL AND LAID DOWN 3-1/2" DP T/840' TEST BOP STACK, TEST WITNESS WAIVED BY DOUG AMOS W/AOGCC] BHA #10, RIH T/11525' TAGGED CMT, CALL TOC AT 11445'. DRILLED CEMENT T/l1900' MD/8925' TVD, KICK-OFF DEPTH. CBU, POOH T/ill', CHANGE BHA. (CHANGE REPS TO DS 12-35 HORIZONTAL - NO LONGER 12-35 PILOT HOLE.) DRILLED T/12083' MW: 0.0 VIS: 0 BHA #1, RIH T/11887'. DRILLED T/11992', CIRC. DRILLED T/12083' DRILLED T/12250' MW: 0.0 VIS: 0 BHA #1, DRILLED T/12193'. BUILD RATE UNACCEPTABLE. CBU, POOH T/165', STOOD BACK BHA. BHA #2, RIH T/12178', WASHED 15' TO BOTTOM. NO FILL, HOLE IN GOOD SHAPE. DRILLED T/12250', BUILDING TO HORIZONTAL, NO PROBLEMS. BHA #3 MADE UP MW: 0.0 VIS: 0 BHA #2, DRILLED T/12601'. UNABLE TO SLIDE, NEED TO DROP ANGLE. ROP DROPPED, STRING HUNG UP, UNABLE TO SLIDE. CBU AT 12601'. MIX AND PUMP SLUG. CBU, POOH T/0', FOR BHA CHANGE. HOLE IN GOOD SHAPE. DOWN LOAD RLLo BHA #3 MADE UP. DRILLED T/12884' MW: 0.0 VIS: 0 BHA #3, RIH T/12553'. FILL EVERY 3000'. HOLE IN GOOD SHAPE, WASHED 48' TO BOTTOM, NO FILL. DRILLED T/12767', UNABLE TO SLIDE AT 12735'. ROP DROPPED, STRING HUNG UP, UNABLE TO SLIDE. CBU AT 12767'. POOH T/0', LAID OUT BHA. BHA #4, RIH T/12720' DRILLED T/1284' NO PROBLEMS AT 0600 HRS CUTTING MUD WEIGHT. TVD AND INCLINATION SATISFACTORY WITH GEOLOGIST. POOH WET T/2200' MW: 0.0 VIS: 0 BHA #4, DRILLED T/13473'. POOH T/12573', RIH T/13460'. NO FILL, NO PROBLEMS. DRILLED T/13845', REACHED PLANNED END OF RUN. CBU, POOH T/2200'. HOLE IN GOOD SHAPE. WELL : 12-35 OPERATION: RIG : NABORS 18E PAGE: 5 10/19/95 (33) TD:13868' ( 23) 10/20/95 (34) TD:14222' ( 354) 10/21/95 (35) TD:14222' ( 0) 10/22/95 (36) TD:14222 PB: 0 10/23/95 (37) TD:14222 PB: 0 10/24/95 (38) TD:14222 PB:14141 10/25/95 (39) TD:14222 PB:14141 SHORT TRIP TO SHOE, CIRC MW: 0.0 VIS: 0 BHA #4 PULLED. BHA #5, P/U SPERRY SUN RESISTIVITY/GR MWD TOOL. PULSE CHECK TOOLS AT SURFACE. RIH T/12559', LOGGING MADD PASS FROM 12559' TO 13845'. RIH T/13845'. DRILLED T/13857', REST HOLE AT 13845'. CIRC AT 13857', PUMP PILL INTO OPEN HOLE. LCM PILL SPOTTED DOWNHOLE. POOH T/11880', 7-5/8" CASING SHOE. REST HOLE, OBSERVE AND ALLOW TO HEAL. CBU, NO LOSSES WHILE CIRC RIH T/13857' DRILLED T/13868' LOST RETURNS. REST HOLE AT 13850'. DRILLED T/13899'. CIRC, FINISH MIX AND SPOT LCM PILL. POOH T/11853'. PLAN TO SHORT TRIP TO SHOE AND CIRC ON TOP OF PILL TO PLUG LOSS ZONE. POOH T/188', PULL BHA MW: 0.0 VIS: 0 BHA #5, REST HOLE AT 11880'. LOSS RATE DROPPED. CBU, RIH T/13899', NO HOLE PROBLEMS. DRILLED T/14222', PLANNED TD. CBU AND SPOTTED LCM PILL ON BOTTOM. LOGGED HOLE W/LWD, FE, GR, RESISTIVITY. POOH T/188', PULLED BHA. REAMED T/13800' MW: 0.0 VIS: 0 TEST WELL CONTROL EQUIPMENT. BOP STACK TEST WITNESS WAIVED BY B. WONDZELL, AOGCC. BHA #6, RIH T/12301'. REAMED T/12529', REAMED T/13800'. RAN CASING T/2500' MW: 0.0 BHA #6, REAMED T/11422'. CBU, POOH T/ 11880', NO HOLE PROBLEMS. RIH T/ 14222', CBU, SPOT LCM PILL. POOH T/3007', NO MUD LOST ON TRIP OUT OF HOLE. RIH T/4774'. PULL AND LAID OUT BHA. RU TO RUN 5-1/2" OD CASING. RAN CASING T/2500'. CEMENT CLEANOUT BHA MW: 0.0 RAN CASING T/2492'. HANGER ASSEMBLY INSTALLED. RIH SLOW FILLING PIPE EVERY 10 STANDS. BROKE CIRC AND SHOE. NO PROBLEMS RUNNING PIPE TO BOTTOM. AT SETTING DEPTH 14222'. CBU. MIXED AND PUMPED CEMENT SLURRY. PLUG BUMPED. REVERSE CBU. PULL DP T/0'. BHA #7, CEMENT CLEANOUT. R/U TO RUN CMT BOND LOG MW: 0.0 BHA #7, RIH T/14141', TAGGED LANDING COLLAR. CIRC, PUMP HI VIS SWEEP. HOLE DISPLACED WITH SEAWATER. PRESSURE TEST CASING. PULLED BHA. R/U TO RUN ATLAS WIRELINE SBT CEMENT BOND LOG. L/D DP T/2730' MW: 0.0 RIH AND RAN SBT/GR/CLL LOGS. M/U DST TOOLS, TCP GUNS. P/U GUNS, DP TO SPACEOUT, PACKER, JARS, FAS-FIL VALVE. RIH T/14111', TAGGED LC AT 14141' AND SPACED OUT TO PUT GUNS ON DEPTH. SET PACKER AT 11623'. PERFORATED FROM 12880' TO 14110'. REVERSE CIRC AT 11623'. HOLE DISPLACED WITH SEAWATER. UNSEATED PACKER, CIRC. L/D DP T/2730' WELL : 12-35 OPERATION: RIG - NABORS 18E PAGE: 6 10/26/95 (40) TD:14222 PB:14141 RAN TUBING 5gW: 0.0 PULL AND L/D DP AND PERF GUNS T/0'. CHANGE RAMS TO 4-1/2". RAN TUBING T/6080' 10/27/95 (41) TD:14222 PB:14141 FREEZE PROTECT MW: 0.0 RUN 4-1/2" TUBING T/9624, PU SSSV. RU CAMCO CONTROL LINES. CONTINUE RUNNING 4-1/2" TUBING, TAG LINER TOP AT 11730'. SPACE OUT PU HANGER. TEST CONTROL LINES. CIRC INHIBITOR. LAND ENERGIZE HANGER, DROP SETTING BALL. TEST PACKER. CHANGE RAMS, ND BOP, NU TREE, TEST TREE. FREEZE PROTECT. SIGNATURE: (drilling superintendent) DATE: ANCHORAGE ALASKA ~ / ~ ! / SHARED SERVICES DRILLING DATE OF SURVEY: PBU/12-35PB1 MWD SURVEY ~ ~ //'~'//~. j/ NORTH SLOPE BOROUGH KELLY BUSHING ELEV. = 69.60 COMPUTATION DATE: 11/ 3/95 OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 0 .00 -69.60 0 0 N .00 E .00 .00N .00E .00 143 143.40 73.80 0 12 N 4.70 E .14 .25N .02E -.16 241 241.40 171.80 0 5 S 71.20 E .24 .40N .liE -.32 333 333.40 263.80 0 29 N 78.90 E .45 .45N .56E -.72 426 426.73 357.13 0 13 N 47.90 E .34 .65N 1.09E -1.27 521 521.06 451.46 0 36 N 76.40 E .44 .89N 1.71E -1.91 611 611.79 542.19 0 55 N 89.60 E .41 1.01N 2.91E -2.95 706 706.78 637.18 1 43 N 77.80 E .88 1.32N 5.08E -4.88 798 798.24 728.64 1 4 S 84.00 E .85 1.52N 7.27E -6.77 891 891.34 821.74 0 39 S 44.80 E .75 1.05N 8.50E -7.50 986 986.22 916.62 1 20 S 79.10 W 1.88 .46N 7.79E -6.58 1081 1081.49 1011.89 1 49 S 79.00 W .50 .04S 5.21E -4.20 1173 1173.44 1103.84 1 40 S 67.90 W .40 .82S 2.54E -1.57 1268 1268.01 1198.41 2 5 S 72.50 W .47 1.86S .38W 1.40 1364 1363.71 1294.11 2 52 S 66.40 W .87 3.35S 4.26W 5.41 1457 1457.53 1387.93 2 33 S 67.10 W .34 5.11S 8.35W 9.76 1551 1550.58 1480.98 2 46 S 64.40 W .26 6.89S 12.30W 14.00 1644 1643.34 1573.74 3 34 S 46.20 W 1.38 9.87S 16.42W 19.08 1736 1736.08 1666.48 4 16 S 35.90 W 1.07 14.69S 20.54W 25.25 1831 1829.78 1760.18 5 9 S 29.10 W 1.11 21.22S 24.66W 32.42 1925 1923.35 1853.75 7 0 S 28.60 W 1.96 29.96S 29.46W 41.44 2017 2014.83 1945.23 7 39 S 25.90 W .81 40.42S 34.84W 51.93 2111 2108.32 2038.72 8 46 S 20.00 W 1.47 52.85S 40.05W 63.45 2206 2201.60 2132.00 10 44 S 23.30 W 2.16 67.73S 46.01W 77.01 2299 2292.57 2222.97 12 24 S 18.60 W 2.06 85.14S 52.61W 92.57 2392 2383.27 2313.67 13 40 S 22.00 W 1.59 104.83S 59.93W 110.06 2484 2472.67 2403.07 14 40 S 19.00 W 1.35 125.99S 67.82W 128.86 2578 2563.24 2493.64 16 45 S 15.40 W 2.44 150.34S 75.30W 149.22 2671 2651.73 2582.13 19 49 S 17.80 W 3.38 178.35S 83.70W 172.47 2764 2737.75 2668.15 22 1 S 19.60 W 2.50 209.49S 94.27W 199.30 2858 2824.75 2755.15 24 6 S 19.10 W 2.20 244.45S 106.54W 229.76 2951 2908.61 2839.01 25 32 S 22.30 W 2.13 280.71S 120.27W 262.16 3044 2991.80 2922.20 28 6 S 22.00 W 2.75 319.66S 136.12W 297.86 3135 3071.62 3002.02 30 7 S 23.30 W 2.33 360.68S 153.26W 335.81 3228 3150.61 3081.01 33 21 S 25.90 W 3.78 405.08S 173.64W 378.38 M CROF LMED sP9' SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH 3319 3226.64 3157.04 3410 3301.42 3231.82 3486 3362.91 3293.31 3593 3448.99 3379.39 3690 3525.54 3455.94 3784 3597.40 3527.80 3877 3667.21 3597.61 3970 3734.22 3664.62 4065 3799.90 3730.30 4158 3862.13 3792.53 4250 3922.16 3852.56 4346 3984.01 3914.41 4437 4041.85 3972.25 4531 4100.93 4031.33 4624 4159.34 4089.74 Y-SUN DRILLING SERVICES ANCHORAGE ALASKA COURS INCLN DG MN 34 2 34 55 35 59 37 35 38 31 40 35 42 40 45 13 46 50 49 20 49 4 50 32 50 57 51 9 50 45 PAGE 2 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC 4716 4217.64 4148.04 50 45 4807 4275.18 4205.58 50 29 4899 4333.80 4264.20 50 10 4989 4392.60 4323.00 48 47 5083 4454.80 4385.20 48 41 COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 5174 4514.70 4445.10 5269 4576.63 4507.03 5363 4636.67 4567.07 5456 4696.38 4626.78 5552 4757.18 4687.58 S 23.60 W 1.58 451.13S 194.86W S 24.90 W 1.27 497.95S 215.96W S 24.60 W 1.42 537.73S 234.29W S 25.40 W 1.55 596.07S 261.51W S 24.40 W 1.16 650.43S 286.73W 422.59 467.16 505.36 561.63 613.97 5645 4816.49 4746.89 5738 4875.90 4806.30 5830 4934.05 4864.45 5921 4991.74 4922.14 6012 5048.91 4979.31 S 23.00 W 2.41 704.79S 310.58W S 21.90 W 2.37 762.14S 334.26W S 22.00 W 2.74 822.07S 358.42W S 21.10 W 1.83 885.40S 383.42W S 21.70 W 2.74 949.97S 408.73W 665.19 718.03 772.77 830.19 888.59 6105 5107.71 5038.11 6195 5163.48 5093.88 6287 5221.30 5151.70 6380 5282.00 5212.40 6473 5343.27 5273.67 S 21.70 W .29 1014.61S 434.46W S 20.90 W 1.65 1082.83S 461.05W S 19.80 W 1.04 1149.20S 485.66W S 20.70 W .77 1217.80S 510.97W S 19.30 W 1.25 1285.47S 535.61W 947.36 1008.94 1067.83 1128.59 1188.26 S 20.20 W .76 1352.65S 559.72W S 19.40 W .74 1418.62S 583.47W S 21.00 W 1.38 1484.96S 607.88W S 19.00 W 2.28 1549.61S 631.42W S 20.60 W 1.28 1616.31S 655.44W 1247.23 1305.18 1363.89 1420.90 1479.50 48 35 50 0 50 5 50 25 51 3 S 21.70 W .92 1679.77S 679.99W S 21.30 W 1.51 1746.76S 706.37W S 22.20 W .74 1813.32S 732.93W S 20.80 W 1.21 1880.15S 759.25W S 20.60 W .68 1949.74S 785.55W 1536.63 1597.32 1657.89 1718.43 1780.58 50 1 50 41 50 20 50 54 50 57 S 22.80 W 2.13 2016.68S 812.18W S 22.60 W .74 2082.83S 839.84W S 22.10 W .57 2148.11S 866.68W S 22.90 W .92 2213.05S 893.59W S 22.90 W .04 2277.92S 920.99W 1841.43 1902.66 1962.72 2022.62 2082.88 51 14 51 45 5O 5 49 19 47 50 S 22.80 W .32 2345.05S 949.28W S 22.60 W .61 2409.74S 976.33W S 21.60 W 2.00 2475.73S 1003.14W S 21.80 W .85 2542.25S 1029.61W S 23.40 W 2.06 2606.37S 1056.29W 2145.20 2205.08 2265.52 2326.00 2385.24 SPF4'''~ Y-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 6566 5405.54 5335.94 47 46 6658 5467.49 5397.89 47 58 6754 5531.29 5461.69 48 14 6847 5593.75 5524.15 48 15 6942 5656.58 5586.98 48 12 S 23.50 W .11 2669.38S 1083.62W S 24.10 W .53 2732.06S 1111.27W S 25.50 W 1.12 2796.62S l141.10W S 24.30 W .95 2860.09S 1170.56W S 23.70 W .48 2924.36S 1199.18W 2444.36 2503.54 2565.59 2626.70 2687.60 7037 5719.65 5650.05 48 32 7134 5784.06 5714.46 48 36 7227 5845.69 5776.09 48 28 7322 5908.43 5838.83 48 17 7417 5972.24 5902.64 47 53 S 24.80 W .94 2989.05S 1228.32W S 25.00 W .17 3055.26S 1259.06W S 24.50 W .43 3118.62S 1288.26W S 24.70 W .25 3182.85S 1317.67W S 23.90 W .76 3247.65S 1346.93W 2749.17 2812.92 2873.77 2935.28 2997.01 7511 6035.06 5965.46 7605 6098.09 6028.49 7698 6160.67 6091.07 7792 6223.52 6153.92 7885 6288.18 6218.58 47 47 47 44 48 0 47 54 44 57 S 23.40 W .41 3311.21S 1374.76W S 23.20 W .17 3374.99S 1402.23W S 24.00 W .70 3438.40S 1429.94W S 24.00 W .12 3502.06S 1458.28W S 21.40 W 3.72 3564.74S 1484.54W 3056.85 3116.53 3176.19 3236.51 3294.57 7981 6355.47 6285.87 8076 6422.63 6353.03 8170 6489.21 6419.61 8263 6554.16 6484.56 8357 6619.77 6550.17 44 55 45 9 45 24 45 42 45 50 S 22.30 W .67 3627.08S 1509.54W S 20.70 W 1.22 3689.65S 1534.18W S 20.90 W .29 3752.50S 1558.06W S 21.80 W .77 3814.18S 1582.17W S 21.20 W .48 3876.91S 1606.88W 3351.40 3408.09 3464.31 3520.04 3576.86 8453 6686.42 6616.82 45 50 8545 6750.63 6681.03 45 56 8640 6816.25 6746.65 46 25 8732 6879.38 6809.78 46 35 8827 6945.25 6875.65 46 35 S 21.00 W .15 3940.97S 1631.60W S 21.10 W .13 4002.80S 1655.39W S 21.40 W .56 4066.52S 1680.18W S 21.60 W .24 4128.43S 1704.56W S 20.60 W .76 4193.39S 1729.63W 3634.49 3690.05 3747.52 3803.61 3862.04 8921 7009.36 6939.76 9013 7071.99 7002.39 9109 7136.76 7067.16 9202 7199.66 7130.06 9298 7264.99 7195.39 46 57 47 19 47 24 47 28 47 17 S 19.70 W .80 4257.42S 1753.12W S 20.90 W 1.03 4320.72S 1776.54W S 20.60 W .25 4386.51S 1801.46W S 20.90 W .25 4450.56S 1825.73W S 20.80 W .19 4516.92S 1851.01W 3918.64 3974.76 4033.56 4090.82 4150.23 9391 7328.21 7258.61 9487 7393.68 7324.08 9582 7458.47 7388.87 9676 7523.01 7453.41 9771 7588.14 7518.54 47 9 46 57 46 48 46 44 46 37 S 20.40 W .35 4580.89S 1875.05W S 20.60 W .26 4646.79S 1899.69W S 22.00 W 1.09 4711.26S 1924.82W S 21.60 W .32 4775.02S 1950.33W S 20.70 W .70 4839.43S 1975.24W 4207.25 4265.89 4324.09 4382.16 4440.14 SPE,[ Y-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 4 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 9866 7653.38 7583.78 9960 7717.87 7648.27 10053 7781.13 7711.53 10148 7844.89 7775.29 10250 7914.67 7845.07 46 38 S 21.40 W .54 4903.88S 2000.05W 46 20 S 22.10 W .62 4966.99S 2025.23W 47 54 S 20.20 W 2.2'5 5030.54S 2049.80W 47 25 S 19.40 W .80 5096.40S 2073.51W 46 59 S 20.20 W .71 5167.32S 2099.04W 4498.06 4555.50 4612.70 4670.55 4732.86 10343 7978.49 7908.89 10440 8045.30 7975.70 10535 8109.98 8040.38 10628 8171.87 8102.27 10723 8235.31 8165.71 46 9 S 18.90 W 1.36 5230.85S 2121.60W 46 16 S 20.10 W .91 5296.55S 2144.87W 48 1 S 22.60 W 2.66 5361.47S 2170.27W 48 17 S 22.90 W .39 5425.21S 2197.00W 47 42 S 24.00 W 1.07 5489.85S 2225.04W 4788.42 4845.83 4904.50 4963.56 5024.21 10816 8297.57 8227.97 10910 8359.08 8289.48 11005 8418.67 8349.07 11101 8476.90 8407.30 11195 8532.91 8463.31 48 22 S 25.00 W 1.07 5552.85S 2253.75W 50 28 S 29.40 W 4.17 5616.65S 2286.59W 51 52 S 30.10 W 1.59 5680.93S 2323.33W 53 5 S 32.40 W 2.29 5745.76S 2362.69W 54 15 S 36.20 W 3.47 5808.65S 2405.61W 5084.44 5148.48 5215.96 5285.88 5357.55 11290 8587.79 8518.19 11384 8642.00 8572.40 11477 8695.59 8626.00 11568 8747.94 8678.34 11599 8765.67 8696.07 54 37 S 38.30 W 1.85 5869.74S 2452.07W 54 45 S 42.30 W 3.48 5928.08S 2501.54W 55 3 S 47.10 W 4.23 5982.25S 2555.16W 54 50 S 50.00 W 2.61 6031.64S 2611.08W 54 34 S 50.30 W 1.19 6047.69S 2630.32W 5431.02 5505.32 5580.53 5654.79 5679.79 11630 8783.71 8714.11 11660 8800.80 8731.20 11692 8818.95 8749.35 11721 8835.34 8765.74 11754 8853.38 8783.78 55 4 S 51.00 W 2.43 6063.92S 2650.11W 55 9 S 51.20 W .60 6079.31S 2669.18W 55 50 S 50.80 W 2.39 6095.93S 2689.70W 56 11 S 51.80 W 3.07 6111.14S 2708.68W 56 52 S 51.30 W 2.44 6128.10S 2730.05W 5705.34 5729.82 5756.19 5780.48 5807.74 11783 8869.15 8799.55 11814 8885.57 8815.97 11887 8923.94 8854.34 11916 8938.66 8869.06 11978 8970.95 8901.35 57 32 S 52.00 W 3.06 6143.29S 2749.25W 57 41 S 52.10 W .56 6159.21S 2769.65W 59 38 S 52.40 W 2.66 6197.79S 2819.49W 59 20 S 52.60 W 1.16 6213.00S 2839.31W 57 34 S 53.90 W 3.40 6244.48S 2881.46W 5832.19 5858.06 5921.05 5946.03 5998.63 12009 8987.62 8918.02 12040 9004.73 8935.13 12070 9022.22 8952.62 12102 9039.99 8970.39 12133 9057.90 8988.30 56 42 S 54.00 W 2.85 6259.66S 2902.31W 55 42 S 52.40 W 5.4'1 6274.97S 2922.78W 55 12 S 52.50 W 1.64 6290.45S 2942.92W 55 0 S 53.60 W 2.98 6305.76S 2963.28W 54 30 S 52.10 W 4.26 6321.06S 2983.47W 6024.42 6049.98 6075.38 6100.84 6126.18 SPE~ '~ "-SUN DRILLING SERVICES ~ ANCHORAGE ALASKA PAGE 5 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 12164 9076.27 9006.67 54 5 S 52.60 W 1.81 12195 9094.33 9024.73 53 42 S 52.40 W 1.41 12225 9112.59 9042.99 53 24 S 52.20 W 1.11 12256 9131.16 9061.56 53 0 S 51.00 W 3.36 12287 9149.84 9080.25 52 35 S 52.00 W 2.88 6336.68S 3003.71W 6151.72 6351.76S 3023.36W 6176.48 6366o88S 3042.93W 6201.20 6382.29S 3062.38W 6226.00 6397.62S 3081.64W 6250.58 12330 9175.48 9105.88 52 35 S 52.00 W .00 6418.25S 3108.06W 6284.09 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 7131.20 FEET AT SOUTH 25 DEG. 50 MIN. WEST AT MD = 12330 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 234.05 DEG. PILOT HOLE, SURFACE TO 12,330' SPEI~:~ '-SUN DRILLING SERVICES · ANCHORAGE ALASKA PAGE 6 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 0 .00 -69.60 .00 N .00 E 1000 999.90 930.30 .40 N 7.48 E 2000 1997.64 1928.04 38.34 S 33.83 W 3000 2952.52 2882.92 300.72 S 128.44 W 4000 3754.90 3685.29 841.39 S 366.22 W .00 .10 .10 2.36 2.26 47.48 45.12 245.10 197.62 5000 4399.46 4329.86 1557.02 S 633.98 W 6000 5041.32 4971.72 2269.30 S 917.35 W 7000 5695.03 5625.43 2963.75 S 1216.63 W 8000 6368.88 6299.28 3639.45 S 1514.61 W 9000 7062.81 6993.21 4311.42 S 1772.99 W 600.54 355.43 958.68 358.15 1304.97 346.29 1631.12 326.15 1937.19 306.07 10000 7745.13 7675.53 4993.46 S 2035.98 W 11000 8415.15 8345.55 5677.05 S 2321.08 W 12000 8982.49 8912.89 6255.08 S 2896.00 W 12330 9175.48 9105.88 6418.25 S 3108.06 W 2254.87 317.68 2584.85 329.98 3017.51 432.66 3154.52 137.02 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPEl~~ '-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 7 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 0 .00 -69.60 69 69.60 .00 169 169.60 100.00 269 269.60 200.00 369 369.60 300.00 .00 N .00 E .00 .01 N .00 E .00 .00 .34 N .03 E .00 .00 .38 N .15 E .00 .00 .51 N .87 E .00 .00 469 469.60 400.00 569 569.60 500.00 669 669.60 600.00 769 769.60 700.00 869 869.60 800.00 .76 N 1.24 E .00 N 2.25 E .08 N 3.98 E .57 N 6.74 E .23 N 8.33 E .01 .00 .01 .01 .03 .02 .07 .04 .O8 .01 969 969.60 900.00 1069 1069.60 1000.00 1169 1169.60 1100.00 1269 1269.60 1200.00 1369 1369.60 1300.00 .53 N 8.18 E .09 .01 .03 N 5.58 E .13 .04 .78 S 2.64 E .18 .05 .88 S .44 W .23 .05 .47 S 4.53 W .33 .10 1470 1469.60 1400.00 1570 1569.60 1500.00 1670 1669.60 1600.00 1770 1769.60 1700.00 1870 1869.60 1800.00 5.32 S 8.85 W 7.29 S 13.13 W 11.01 S 17.60 W 16.72 S 22.01 W 24.40 S 26.42 W .44 .11 .55 .11 .73 .17 .99 .26 1.38 .39 1971 1969.60 1900.00 2072 2069.60 2000.00 2173 2169.60 2100.00 2275 2269.60 2200.00 2378 2369.60 2300.00 35.01 S 32.18 W 47.28 S 38.00 W 62.16 S 43.61 W 80.35 S 51.00 W 101.74 S 58.68 W 2.11 .73 3.03 .92 4.30 1.26 6.22 1.92 8.78 2.56 2481 2469.60 ,2400.00 2585 2569.60 2500.00 2690 2669.60 2600.00 2798 2769.60 2700.00 2907 2869.60 2800.00 125.23 S 67.55 W 152.22 S 75.83 W 184.48 S 85.67 W 221.64 S 98.59 W 263.51 S 113.29 W 11.89 3.11 15.82 3.93 21.37 5.55 28.84 7.47 38.26 9.42 3019 2969.60 2900.00 3133 3069.60 3000.00 3251 3169.60 3100.00 3371 3269.60 3200.00 3494 3369.60 3300.00 308.84 S 131.74 W 359.61 S 152.80 W 416.33 S 179.10 W 477.82 S 206.65 W 542.14 S 236.32 W 49.60 11.34 63.73 14.13 81.69 17.96 102.28 20.59 124.84 22.55 SPEI¥ ' SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 8 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 OPERATOR: ARCO ALASKA INC FT. INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 3619 3469.60 3400.00 3747 3569.60 3500.00 3880 3669.60 3600.00 4020 3769.60 3700.00 4169 3869.60 3800.00 610.40 S 268.31 W 682.86 S 301.27 W 764.19 S 335.09 W 855.26 S 371.79 W 958.05 S 411.95 W 150.08 25.24 177.91 27.83 211.19 33.28 251.37 40.18 300.32 48.96 4323 3969.60 3900.00 4481 4069.60 4000.00 4640 4169.60 4100.00 4798 4269.60 4200.00 4954 4369.60 4300.00 1066.48 S 454.80 W 1181.40 S 497.27 W 1297.33 S 539.76 W 1412.24 S 581.23 W 1524.74 S 622.83 W 353.93 53.61 412.09 58.15 470.98 58.89 528.85 57.87 585.04 56.18 5106 4469.60 4400.00 5258 4569.60 4500.00 5414 4669.60 4600.00 5572 4769.60 4700.00 5729 4869.60 4800.00 1632.07 S 1738.96 S 1849.89 S 1964.13 S 2075.72 S 661.36 W 703.33 W 747.70 W 790.96 W 836.89 W 636.72 51.68 689.00 52.28 744.81 55.81 802.67 57.87 859.41 56.74 5886 4969.60 4900.00 6044 5069.60 5000.00 6205 5169.60 5100.00 6361 5269.60 5200.00 6512 5369.60 5300.00 2187.94 S 2301.41 S 2416.91 S 2528.86 S 2633.05 S 882.98 W 930.91 W 979.32 W 1024.25 W 1067.84 W 916.63 57.22 975.29 58.66 1035.55 60.26 1092.26 56.71 1143.13 50.87 6661 5469.60 5400.00 6811 5569.60 5500.00 6961 5669.60 5600.00 7112 5769.60 5700.00 7263 5869.60 5800.00 2734.19 S 2835.43 S 2937.69 S 3040.39 S 3143.19 S 1112.22 W 1159.42 W 1205.03 W 1252.12 W 1299.46 W 1192.13 49.00 1242.05 49.93 1292.18 50.13 1343.06 50.89 1394.09 51.03 7413 5969.60 5900.00 7562 6069.60 6000.00 7711 6169.60 6100.00 7859 6269.60 6200.00 8001 6369.60 6300.00 3244.98 S 3346.17 S 3447.46 S 3547.26 S 3640.12 S 1345.75 W 1444.11 50.02 1389.88 W 1493.06 48.95 1433.97 W 1542.07 49.01 1477.55 W 1589.94 47.86 1514.88 W 1631.42 41.48 8142 6469.60 6400.00 8285 6569.60 6500.00 8429 6669.60 6600.00 8572 6769.60 6700.00 8717 6869.60 6800.00 3733.93 S 3828.88 S 3924.79 S 4021.08 S 4118.82 S 1550.97 W 1673.21 41.79 1588.05 W 1716.00 42.80 1625.39 W 1759.51 43.50 1662.45 W 1803.19 43.69 1700.75 W 1848.18 44.98 SPE~ ~ '-SUN DRILLING SERVICES ~ ANCHORAGE ALASKA PAGE 9 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES MD-TVD DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE VERTICAL CORRECTION 8863 6969.60 6900.00 4217.49 S 1738.68 W 1893.69 9010 7069.60 7000.00 4318.30 S 1775.61 W 1940.42 9157 7169.60 7100.00 4419.95 S 1814.05 W 1988.10 9305 7269.60 7200.00 4521.59 S 1852.78 W 2035.85 9452 7369.60 7300.00 4622.65 S 1890.62 W 2082.98 45.52 46.72 47.68 47.75 47.13 9598 7469.60 7400.00 4722.25 S 1929.26 W 2129.32 9744 7569.60 7500.00 4821.08 S 1968.31 W 2175.23 9890 7669.60 7600.00 4919.87 S 2006.32 W 2220.85 10036 7769.60 7700.00 5018.56 S 2045.39 W 2266.70 10184 7869.60 7800.00 5121.77 S 2082.44 W 2315.11 46.34 45.91 45.62 45.84 48.41 10330 7969.60 7900.00 5222.09 S 2118.61 W 2361.31 10475 8069.60 8000.00 5320.42 S 2153.60 W 2405.85 10624 8169.60 8100.00 5422.87 S 2196.01 W 2455.18 10774 8269.60 8200.00 5524.35 S 2240.50 W 2504.45 10927 8369.60 8300.00 5627.76 S 2292.84 W 2557.58 46.20 44.54 49.33 49.27 53.13 11089 8469.60 8400.00 5737.55 S 2357.48 W 2619.58 11258 8569.60 8500.00 5849.64 S 2436.20 W 2689.22 11431 8669.60 8600.00 5956.44 S 2528.54 W 2762.31 11605 8769.60 8700.00 6051.22 S 2634.59 W 2836.24 11784 8869.60 8800.00 6143.72 S 2749.80 W 2914.67 62.00 69.64 73.09 73.94 78.43 11976 8969.60 8900.00 6243.23 S 2879.74 W 3006.50 12153 9069.60 9000.00 6331.04 S 2996.38 W 3083.50 12330 9175.48 9105.88 6418.25 S 3108.06 W 3154.52 91.83 77.00 71.02 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS SP~ ~,Y-SUN DRILLING SERVICES ~ ANCHORAGE ALASKA PAGE 1 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 MWD SURVEY JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 11887 8924.24 8854.64 11906 8933.54 8863.94 11938 8948.05 8878.45 11969 8960.91 8891.31 12000 8972.08 8902.48 59 38 60 57 64 28 67 12 69 55 S 52.40 W .00 6198.00S 2819.59W S 53.10 W 7.75 6207.86S 2832.56W S 51.61 W 11.87 6225.06S 2854.84W S 52.77 W 9.32 6242.63S 2877.50W S 51.87 W 9.28 6260.03S 2900.02W 5921.26 5937.55 5965.68 5994.34 6022.79 12031 8981.69 8912.09 12063 8989.49 8919.89 12095 8995.39 8925.79 12126 8999.59 8929.99 12154 9002.37 8932.77 73 48 77 47 81 15 83 25 85 3 S 52.13 W 12.60 6278.08S 2923.12W 6052.08 S 51.28 W 12.80 6297.19S 2947.32W 6082.89 S 51.74 W 10.77 6317.02S 2972.26W 6114.73 S 52.20 W 7.06 6336.27S 2996.87W 6145.95 S 51.52 W 6.36 6353.31S 3018.57W 6173.51 12186 9004.85 8935.25 12218 9006.97 8937.37 12250 9008.92 8939.32 12281 9011.11 8941.51 12313 9013.60 8944.00 85 57 86 28 86 25 85 42 85 16 S 50.88 W 3.48 6373.08S 3043.17W S 49.02 W 6.00 6393.70S 3067.70W S 49.71 W 2.19 6414.22S 3091.60W S 53.32 W 11.50 6434,02S 3116.52W S 52.71 W 2.37 6453.03S 3141.75W 6205.04 6237.00 6268.39 6300.19 6331.78 12342 9015.70 8946.10 12369 9017.34 8947.74 12402 9019.20 8949.60 12434 9020.89 8951.29 12466 9021.96 8952.36 86 19 86 47 86 47 87 7 89 0 S 51.97 W 4.51 6470.46S 3164.34W S 52.43 W 2.38 6487.18S 3185.89W S 53.87 W 4.33 6507.05S 3212.40W S 53.91 W 1.07 6525.83S 3238.15W S 52.87 W 6.74 6544.84S 3263.73W 6360.30 6387.56 6420.68 6452.56 6484.42 12498 9022.06 8952.46 12529 9021.50 8951.90 12567 9020.44 8950.84 12592 9019.56 8949.96 12624 9018.59 8948.99 90 39 91 21 91 54 92 7 91 22 S 54.71 W 7.72 6563.70S 3289.50W S 55.73 W 3.95 6581.66S 3315.35W S 53.82 W 5.29 6603.26S 3345.95W S 53.80 W .89 6617.97S 3366.05W S 53.63 W 2.38 6636.82S 3391.73W 6516.36 6547.83 6585.28 6610,19 6642.05 12656 9018.09 8948.49 12688 9018.31 8948.71 12720 9019.30 8949.70 12757 9021.26 8951.67 12791 9023.45 8953.85 90 24 88 49 87 37 86 22 86 16 S 53.51 W 3.09 6655.82S 3417.47W S 52.75 W 5.45 6675.03S 3443.08W S 52.96 W 3.79 6694.43S 3468.70W S 51.68 W 4.78 6717.33S 3498.34W S 51.59 W .39 6738.39S 3524.95W 6674.03 6706.04 6738.18 6775.61 6809.51 12819 9025.16 8955.56 12851 9027.12 8957.52 12882 9029.09 8959.49 12913 9031.20 8961.60 12946 9033.06 8963.46 86 32 86 27 86 12 86 10 87 9 S 52.05 W 1.94 6755.28S 3546.43W S 51.45 W 1.88 6775.12S 3571.60W S'51.64 W 1.02 6794.24S 3595.67W S 51.68 W .15 6813.89S 3620.52W S 50.42 W 4.98 6833.99S 3645.39W 6836.82 6868.84 6899.55 6931.21 6963.14 SP~I~.Y-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 2 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 MWD SURVEY JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 12977 9034.41 8964.81 13005 9035.22 8965.62 13036 9035.78 8966.18 13068 9036.25 8966.65 13099 9036.77 8967.17 87 54 S 51.74 W 4.83 6853.64S 3669.71W 88 46 S 52.40 W 3.89 6870.86S 3691.82W 89 10 S 52.30 W 1.32 6889.93S 3716.53W 89 8 S 51.49 W 2.55 6909.55S 3741.55W 88 58 S 51.75 W .97 6929.14S 3766.28W 6994.37 7022.38 7053.57 7085.35 7116.87 13129 9037.32 8967.72 13160 9037.92 8968.33 13192 9038.54 8968.94 13222 9039.10 8969.50 13252 9039.67 8970.07 88 53 S 52.86 W 3.78 6947.17S 3789.61W 88 53 S 53.05 W .61 6966.04S 3814.61W 88 53 S 52.91 W .43 6985.28S 3840.14W 88 56 S 52.70 W .74 7003.07S 3863.57W 88 55 S 53.04 W 1.11 7021.56S 3888.00W 7146.34 7177.66 7209.62 7239.03 7269.66 13283 9040.25 8970.65 13315 9040.79 8971.19 13346 9041.25 8971.66 13378 9041.69 8972.09 13408 9042.09 8972.49 88 55 S 53.20 W .52 7040.17S 3912.80W 89 6 S 53.05 W .77 7058.96S 3937.84W 89 10 S 53.04 W .19 7077.54S 3962.55W 89 17 S 53.77 W 2.31 7096.65S 3988.28W 89 10 S 53.70 W .46 7114.53S 4012.66W 7300.66 7331.96 7362.88 7394.93 7425.16 13439 9042.54 8972.94 13469 9042.94 8973.34 13501 9043.37 8973.77 13531 9043.74 8974.'14 13564 9044.09 8974.50 89 11 S 53.78 W .27 7133.09S 4037.96W 89 13 S 53.52 W .89 7150.60S 4061.75W 89 15 S 53.35 W .54 7169.83S 4087.67W 89 20 S 54.29 W 3.10 7187.79S 4112.24W 89 22 S 53.46 W 2.57 7206.82S 4138.30W 7456.53 7486.08 7518.35 7548.78 7581.05 13593 9044.45 8974.85 13625 9044.98 8975.38 13657 9045.58 8975.98 13690 9046.21 8976.61 13723 9046.83 8977.23 89 11 S 53.18 W 1.15 7224.13S 4161.55W 88 56 S 53.09 W .82 7243.53S 4187.41W 88 55 S 53.82 W 2.26 7262.78S 4213.39W 88 51 S 53.80 W .19 7281.92S 4239.55W 88 56 S 53.37 W 1.34 7301.34S 4265.87W 7610.03 7642.36 7674.69 7707.10 7739.81 13749 9047.30 8977.70 13782 9047.85 8978.25 13810 9048.28 8978.68 13828 9048.50 8978.90 13857 9048.89 8979.29 89 2 S 53.33 W .37 7317.27S 4287.28W 89 1 S 53.92 W 1.81 7336.62S 4313.56W 89 15 S 53.67 W 1.21 7353.53S 4336.65W 89 19 S 54.50 W 4.66 7364.01S 4351.12W 89 8 S 52.80 W 5.92 7381.12S 4374.38W 7766.50 7799.13 7827.75 7845.62 7874.49 13886 9049.33 8979.73 13917 9049.77 8980.17 13952 9050.23 8980.63 13982 9050.69 8981.09 14013 9051.21 8981.61 89 6 S 52.20 W 2.10 7398.52S 4397.06W 89 13 S 52.50 W 1.05 7417.29S 4421.38W 89 17 S 53.60 W 3.12 7438.49S 4449.57W 88 58 S 53.60 W 1.01 7456.64S 4474.19W 89 4 S 53.70 W .46 7474.97S 4499.09W 7903.07 7933.77 7969.04 7999.63 8030.55 SPF' ~.Y-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/9 DATE OF SURVEY: 102095 MWD SURVEY JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 14044 9051.73 8982.13 88 58 14075 9052.26 8982.66 89 4 14106 9052.75 8983.15 89 6 14137 9053.22 8983.62 89 8 14168 9053.63 8984.03 89 20 S 53.40 W 1.04 7493.08S 4523.61W 8061.02 S 52.70 W 2.26 7511.86S 4548.57W 8092.25 S 52.90 W .65 7530.61S 4573.28W 8123.27 S 53.80 W 2.93 7548.97S 4597.95W 8154.02 S 53.00 W 2.66 7567.50S 4622.90W 8185.09 14182 9053.77 8984.17 89 30 S 53.90 W 6.43 14222 9054.11 8984.51 89 30 S 53.90 W .00 7575.96S 4634.32W 8199.31 7599.16S 4666.14W 8238.69 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 8917.41 FEET AT SOUTH 31 DEG. 33 MIN. WEST AT MD = 14222 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 234.05 DEG. TIED INTO 12-35PB1 AT 11887.89' KICK OFF POINT AT 11906.65' INTERPOLATED DEPTH 14222' SP~'-HY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 4 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 11887 8924.24 12887 9029.47 13887 9049.35 14222 9054.11 8854.64 6198.00 S 2819.59 W 2963.65 8959.87 6797.75 S 3600.11 W 3858.42 894.77 8979.75 7399.50 S 4398.31 W 4838.54 980.12 8984.51 7599.16 S 4666.14 W 5167.89 329.36 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SP ,~qY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 5 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 11887 8924.24 8854.64 11993 8969.60 8900.00 14222 9054.11 8984.51 6198.00 S 2819.59 W 2963.65 6256.04 S 2894.90 W 3023.78 60.13 7599.16 S 4666.14 W 5167.89 2144.12 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS SP~Y-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 1 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 OPERATOR: ARCO ALASKA INC FT. TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 0 .00 -69.60 143 143.40 73.80 241 241.40 171.80 333 333.40 263.80 426 426.73 357.13 0 0 N .00 E .00 0 12 N 4.70 E .14 0 5 S 71.20 E .24 0 29 N 78.90 E .45 0 13 N 47.90 E .34 .00N .00E .00 .25N .02E -.16 .40N .liE -.32 .45N .56E -.72 .65N 1.09E -1.27 521 521.06 451.46 611 611.79 542.19 706 706.78 637.18 798 798.24 728.64 891 891.34 821.74 0 36 N 76.40 E .44 0 55 N 89.60 E .41 1 43 N 77.80 E .88 1 4 S 84.00 E .85 0 39 S 44.8,0 E .75 .89N 1.71E 1.01N 2.91E 1.32N 5.08E 1.52N 7.27E 1.05N 8.50E -1.91 -2.95 -4.88 -6.77 -7.50 986 986.22 916.62 1081 1081.49 1011.89 1173 1173.44 1103.84 1268 1268.01 1198.41 1364 1363.71 1294.11 1 20 S 79.10 W 1.88 1 49 S 79.00 W .50 1 40 S 67.90 W .40 2 5 S 72.50 W .47 2 52 S 66.40 W .87 .46N 7.79E .04S 5.21E .82S 2.54E 1.86S .38W 3.35S 4.26W -6.58 -4.20 -1.57 1.40 5.41 1457 1457.53 1387.93 1551 1550.58 1480.98 1644 1643.34 1573.74 1736 1736.08 1666.48 1831 1829.78 1760.18 2 33 S 67.10 W .34 2 46 S 64.40 W .26 3 34 S 46.20 W 1.38 4 16 S 35.90 W 1.07 5 9 S 29.10 W 1.11 5.11S 8.35W 9.76 6.89S 12.30W 14.00 9.87S 16.42W 19.08 14.69S 20.54W 25.25 21.22S 24.66W 32.42 1925 1923.35 1853.75 2017 2014.83 1945.23 2111 2108.32 2038.72 2206 2201.60 2132.00 2299 2292.57 2222.97 7 0 S 28.60 W 1.96 7 39 S 25.90 W .81 8 46 S 20.00 W 1.47 10 44 S 23.30 W 2.16 12 24 S 18.60 W 2.06 29.96S 29.46W 40.42S 34.84W 52.85S 40.05W 67.73S 46.01W 85.14S 52.61W 41.44 51.93 63.45 77.01 92.57 2392 2383.27 2313.67 2484 2472.67 2403.07 2578 2563.24 2493.64 2671 2651.73 2582.13 2764 2737.75 2668.15 13 40 S 22.00 W 1.59 14 40 S 19.00 W 1.35 16 45 S 15.40 W 2.44 19 49 S 17.80 W 3.38 22 1 S 19.60 W 2.50 104.83S 59.93W 125.99S 67.82W 150.34S 75.30W 178.35S 83.70W 209.49S 94.27W 110.06 128.86 149.22 172.47 199.30 2858 2824.75 2755.15 2951 2908.61 2839.01 3044 2991.80 2922.20 3135 3071.62 3002.02 3228 3150.61 3081.01 24 6 S 19.10 W 2.20 25 32 S 22.30 W 2.13 28 6 S 22.00 W 2.75 30 7 S 23.30 W 2.33 33 21 S 25.90 W 3.78 244.45S 106.54W 280.71S 120.27W 319.66S 136.12W 360.68S 153.26W 405.08S 173.64W 229.76 262.16 297.86 335.81 378.38 PAGE 2 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH RY-SUN DRILLING SERVICES ANCHORAGE ALASKA COURS INCLN DG MN 3319 3226.64 3157.04 34 2 3410 3301.42 3231.82 34 55 3486 3362.91 3293.31 35 59 3593 3448.99 3379.39 37 35 3690 3525.54 3455.94 38 31 3784 3597.40 3527.80 40 35 3877 3667.21 3597.61 42 40 3970 3734.22 3664.62 45 13 4065 3799.90 3730.30 46 50 4158 3862.13 3792.53 49 20 4250 3922.16 3852.56 49 4 4346 3984.01 3914.41 50 32 4437 4041.85 3972.25 50 57 4531 4100.93 4031.33 51 9 4624 4159.34 4089.74 50 45 4716 4217.64 4148.04 4807 4275.18 4205.58 4899 4333.80 4264.20 4989 4392.60 4323.00 5083 4454.80 4385.20 50 45 50 29 50 10 48 47 48 41 5174 4514.70 4445.10 48 35 5269 4576.63 4507.03 50 0 5363 4636.67 4567.07 50 5 5456 4696.38 4626.78 50 25 5552 4757.18 4687.58 51 3 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC 5645 4816.49 4746.89 50 1 5738 4875.90 4806.30 50 41 5830 4934.05 4864.45 50 20 5921 4991.74 4922.14 50 54 6012 5048.91 4979.31 50 57 COURSE DLS TOTAL D I RE CT I ON RE CTANGULAR COORD I NATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. S 23.60 W 1.58 451.13S 194.86W S 24.90 W 1.27 497.95S 215.96W S 24.60 W 1.42 537.73S 234.29W S 25.40 W 1.55 596.07S 261.51W S 24.40 W 1.16 650.43S 286.73W 422.59 467.16 505.36 561.63 613.97 S 23.00 W 2.41 704.79S 310.58W S 21.90 W 2.37 762.14S 334.26W S 22.00 W 2.74 822.07S 358.42W S 21.10 W 1.83 885.40S 383.42W S 21.70 W 2.74 949.97S 408.73W 665.19 718.03 772.77 830.19 888.59 S 21.70 W .29 1014.61S 434.46W S 20.90 W 1.65 1082.83S 461.05W S 19.80 W 1.04 1149.20S 485.66W S 20.70 W .77 1217.80S 510.97W S 19.30 W 1.25 1285.47S 535.61W 947.36 1008.94 1067.83 1128.59 1188.26 6105 5107.71 5038.11 6195 5163.48 5093.88 6287 5221.30 5151.70 6380 5282.00 5212.40 6473 5343.27 5273.67 S 20.20 W .76 1352.65S 559.72W S 19.40 W .74 1418.62S 583.47W S 21.00 W 1.38 1484.96S 607.88W S 19.00 W 2.28 1549.61S 631.42W S 20.60 W 1.28 1616.31S 655.44W 1247.23 1305.18 1363.89 1420.90 1479.50 S 21.70 W .92 1679.77S 679.99W S 21.30 W 1.51 1746.76S 706.37W S 22.20 W .74 1813.32S 732.93W S 20.80 W 1.21 1880.15S 759.25W S 20.60 W .68 1949.74S 785.55W 1536.63 1597.32 1657.89 1718.43 1780.58 S 22.80 W 2.13 2016.68S 812.18W S 22.60 W .74 2082.83S 839.84W S 22.10 W .57 2148.11S 866.68W S 22.90 W .92 2213.05S 893.59W S 22.90 W .04 2277.92S 920.99W 1841.43 1902.66 1962.72 2022.62 2082.88 51 14 51 45 5O 5 49 19 47 50 S 22.80 W .32 2345.05S 949.28W S 22.60 W .61 2409.74S 976.33W S 21.60 W 2.00 2475.73S 1003.14W S 21.80 W .85 2542.25S 1029.61W S 23.40 W 2.06 2606.37S 1056.29W 2145.20 2205.08 2265.52 2326.00 2385.24 S~i ~.Y-SUN DRILLING SERVICES ~" ANCHORAGE ALASKA PAGE 3 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 6566 5405.54 5335.94 6658 5467.49 5397.89 6754 5531.29 5461.69 6847 5593.75 5524.15 6942 5656.58 5586.98 47 46 47 58 48 14 48 15 48 12 S 23.50 W .11 2669.38S 1083.62W S 24.10 W .53 2732.06S 1111.27W S 25.50 W 1.12 2796.62S l141.10W S 24.30 W .95 2860.09S 1170.56W S 23.70 W .48 2924.36S 1199.18W 2444.36 2503.54 2565.59 2626.70 2687.60 7037 5719.65 5650.05 7134 5784.06 5714.46 7227 5845.69 5776.09 7322 5908.43 5838.83 7417 5972.24 5902.64 48 32 48 36 48 28 48 17 47 53 S 24.80 W .94 2989.05S 1228.32W S 25.00 W .17 3055.26S 1259.06W S 24.50 W .43 3118.62S 1288.26W S 24.70 W .25 3182.85S 1317.67W S 23.90 W .76 3247.65S 1346.93W 2749.17 2812.92 2873.77 2935.28 2997.01 7511 6035.06 5965.46 7605 6098.09 6028.49 7698 6160.67 6091.07 7792 6223.52 6153.92 7885 6288.18 6218.58 47 47 47 44 48 0 47 54 44 57 S 23.40 W .41 3311.21S 1374.76W S 23.20 W .17 3374.99S 1402.23W S 24.00 W .70 3438.40S 1429.94W S 24.00 W .12 3502.06S 1458.28W S 21.40 W 3.72 3564.74S 1484.54W 3056.85 3116.53 3176.19 3236.51 3294.57 7981 6355.47 6285.87 8076 6422.63 6353.03 8170 6489.21 6419.61 8263 6554.16 6484.56 8357 6619.77 6550.17 44 55 45 9 45 24 45 42 45 50 S 22.30 W .67 3627.08S 1509.54W S 20.70 W 1.22 3689.65S 1534.18W S 20.90 W .29 3752.50S 1558.06W S 21.80 W .77 3814.18S 1582.17W S 21.20 W .48 3876.91S 1606.88W 3351.40 3408.09 3464.31 3520.04 3576.86 8453 6686.42 6616.82 8545 6750.63 6681.03 8640 6816.25 6746.65 8732 6879.38 6809.78 8827 6945.25 6875.65 45 5O 45 56 46 25 46 35 46 35 S 21.00 W .15 3940.97S 1631.60W S 21.10 W .13 4002.80S 1655.39W S 21.40 W .56 4066.52S 1680.18W S 21.60 W .24 4128.43S 1704.56W S 20.60 W .76 4193.39S 1729.63W 3634.49 3690.05 3747.52 3803.61 3862.04 8921 7009.36 6939.76 9013 7071.99 7002.39 9109 7136.76 7067.16 9202 7199.66 7130.06 9298 7264.99 7195.39 46 57 47 19 47 24 47 28 47 17 S 19.70 W .80 4257.42S 1753.12W S 20.90 W 1.03 4320.72S 1776.54W S 20.60 W .25 4386.51S 1801.46W S 20.90 W .25 4450.56S 1825.73W S 20.80 W .19 4516.92S 1851.01W 3918.64 3974.76 4033.56 4090.82 4150.23 9391 7328.21 7258.61 9487 7393.68 7324.08 9582 7458.47 7388.87 9676 7523.01 7453.41 9771 7588.14 7518.54 47 9 46 57 46 48 46 44 46 37 S 20.40 W .35 4580.89S 1875.05W S 20.60 W .26 4646.79S 1899.69W S 22.00 W 1.09 4711.26S 1924.82W S 21.60 W .32 4775.02S 1950.33W S 20.70 W .70 4839.43S 1975.24W 4207.25 4265.89 4324.09 4382.16 4440.14 SUN S . WC S i' ANCHORAGE ALASKA PAGE 4 SH3LRED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 OPERATOR: ARCO ALASKA INC FT. TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 9866 7653.38 7583.78 9960 7717.87 7648.27 10053 7781.13 7711.53 10148 7844.89 7775.29 10250 7914.67 7845.07 46 38 S 21.40 W .54 4903.88S 2000.05W 46 20 S 22.10 W .62 4966.99S 2025.23W 47 54 S 20.20 W 2.25 5030.54S 2049.80W 47 25 S 19.40 W .80 5096.40S 2073.51W 46 59 S 20.20 W .71 5167.32S 2099.04W 4498.06 4555.50 4612.70 4670.55 4732.86 10343 7978.49 7908.89 10440 8045.30 7975.70 10535 8109.98 8040.38 10628 8171.87 8102.27 10723 8235.31 8165.71 46 9 S 18.90 W 1.36 5230.85S 2121.60W 46 16 S 20.10 W .91 5296.55S 2144.87W 48 1 S 22.60 W 2.66 5361.47S 2170.27W 48 17 S 22.90 W .39 5425.21S 2197.00W 47 42 S 24.00 W 1.07 5489.85S 2225.04W 4788.42 4845.83 4904.50 4963.56 5024.21 10816 8297.57 8227.97 10910 8359.08 8289.48 11005 8418.67 8349.07 11101 8476.90 8407.30 11195 8532.91 8463.3'1 48 22 S 25.00 W 1.07 5552.85S 2253.75W 50 28 S 29.40 W 4.17 5616.65S 2286.59W 51 52 S 30.10 W 1.59 5680.93S 2323.33W 53 5 S 32.40 W 2.29 5745.76S 2362.69W 54 15 S 36.20 W 3.47 5808.65S 2405.61W 5084.44 5148.48 5215.96 5285.88 5357.55 11290 8587.79 8518.19 11384 8642.00 8572.40 11477 8695.59 8626.00 11568 8747.94 8678.34 11599 8765.67 8696.07 54 37 S 38.30 W 1.85 5869.74S 2452.07W 54 45 S 42.30 W 3.48 5928.08S 2501.54W 55 3 S 47.10 W 4.23 5982.25S 2555.16W 54 50 S 50.00 W 2.61 6031.64S 2611.08W 54 34 S 50.30 W 1.19 6047.69S 2630.32W 5431.02 5505.32 5580.53 5654.79 5679.79 11630 8783.71 8714.11 11660 8800.80 8731.20 11692 8818.95 8749.35 11721 8835.34 8765.74 11754 8853.38 8783.78 55 4 S 51.00 W 2.43 6063.92S 2650.11W 55 9 S 51.20 W .60 6079.31S 2669.18W 55 50 S 50.80 W 2.39 6095.93S 2689.70W 56 11 S 51.80 W 3.07 6111.14S 2708.68W 56 52 S 51.30 W 2.44 6128.10S 2730.05W 5705.34 5729.82 5756.19 5780.48 5807.74 11783 8869.15 8799.55 11814 8885.57 8815.97 11887 8923.94 8854.34 11916 8938.66 8869.06 11978 8970.95 8901.35 57 32 S 52.00 W 3.06 6143.29S 2749.25W 57 41 S 52.10 W .56 6159.21S 2769.65W 59 38 S 52.40 W 2.66 6197.79S 2819.49W 59 20 S 52.60 W 1.16 6213.00S 2839.31W 57 34 S 53.90 W 3.40 6244.48S 2881.46W 5832.19 5858.06 5921.05 5946.03 5998.63 12009 8987.62 8918.02 12040 9004.73 8935.13 12070 9022.22 8952.62 12102 9039.99 8970.39 12133 9057.90 8988.30 56 42 S 54.00 W 2.85 6259.66S 2902.31W 55 42 S 52.40 W 5.41 6274.97S 2922.78W 55 12 S 52.50 W 1.64 6290.45S 2942.92W 55 0 S 53.60 W 2.98 6305.76S 2963.28W 54 30 S 52.10 W 4.26 6321.06S 2983.47W 6024.42 6049.98 6075.38 6100.84 6126.18 SP~ ~Y-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 5 SF~ARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 12164 9076.27 9006.67 54 5 S 52.60 W 1.81 12195 9094.33 9024.73 53 42 S 52.40 W 1.41 12225 9112.59 9042.99 53 24 S 52.20 W 1.11 12256 9131.16 9061.56 53 0 S 51.00 W 3.36 12287 9149.84 9080.25 52 35 S 52.00 W 2.88 6336.68S 3003.71W 6151.72 6351.76S 3023.36W 6176.48 6366.88S 3042.93W 6201.20 6382.29S 3062.38W 6226.00 6397.62S 3081.64W 6250.58 12330 9175.48 9105.88 52 35 S 52.00 W .00 6418.25S 3108.06W 6284.09 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 7131.20 FEET AT SOUTH 25 DEG. 50 MIN. WEST AT MD = 12330 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 234.05 DEG. PILOT HOLE, SURFACE TO 12,330' PAGE 6 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 OPERATOR: ARCO ALASKA INC FT. INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 0 .00 -69.60 .00 N .00 E 1000 999.90 930.30 .40 N 7.48 E 2000 1997.64 1928.04 38.34 S 33.83 W 3000 2952.52 2882.92 300.72 S 128.44 W 4000 3754.90 3685.29 841.39 S 366.22 W .00 .10 .10 2.36 2.26 47.48 45.12 245.10 197.62 5000 4399.46 4329.86 1557.02 S 633.98 W 6000 5041.32 4971.72 2269.30 S 917.35 W 7000 5695.03 5625.43 2963.75 S 1216.63 W 8000 6368.88 6299.28 3639.45 S 1514.61 W 9000 7062.81 6993.21 4311.42 S 1772.99 W 600.54 355.43 958.68 358.15 1304.97 346.29 1631.12 326.15 1937.19 306.07 10000 7745.13 7675.53 4993.46 S 2035.98 W 11000 8415.15 8345.55 5677.05 S 2321.08 W 12000 8982.49 8912.89 6255.08 S 2896.00 W 12330 9175.48 9105.88 6418.25 S 3108.06 W 2254.87 317.68 2584.85 329.98 3017.51 432.66 3154.52 137.02 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. -SUN S WC .S ANCHORAGE ALASKA PAGE 7 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORT}{/SOUT}{ EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 0 .00 -69.60 69 69.60 .00 169 169.60 100.00 269 269.60 200.00 369 369.60 300.00 .00 N .00 E .00 .01 N .00 E .00 .00 .34 N .03 E .00 .00 .38 N .15 E .00 .00 .51 N .87 E .00 .00 469 469.60 400.00 569 569.60 500.00 669 669.60 600.00 769 769.60 700.00 869 869.60 800.00 .76 N 1.24 E .00 N 2.25 E .08 N 3.98 E .57 N 6.74 E .23 N 8.33 E .01 .00 .01 .01 .03 .02 .07 .04 .08 .01 969 969.60 900.00 1069 1069.60 1000.00 1169 1169.60 1100.00 1269 1269.60 1200.00 1369 1369.60 1300.00 .53 N 8.18 E .09 .01 .03 N 5.58 E .13 .04 .78 S 2.64 E .18 .05 .88 S .44 W .23 .05 .47 S 4.53 W .33 .10 1470 1469.60 1400.00 1570 1569.60 1500.00 1670 1669.60 1600.00 1770 1769.60 1700.00 1870 1869.60 1800.00 5.32 S 8.85 W 7.29 S 13.13 W 11.01 S 17.60 W 16.72 S 22.01 W 24.40 S 26.42 W .44 .11 .55 .11 .73 .17 .99 .26 1.38 .39 1971 1969.60 1900.00 2072 2069.60 2000.00 2173 2169.60 2100.00 2275 2269.60 2200.00 2378 2369.60 2300.00 35.01 S 32.18 W 47.28 S 38.00 W 62.16 S 43.61 W 80.35 S 51.00 W 101.74 S 58.68 W 2.11 .73 3.03 .92 4.30 1.26 6.22 1.92 8.78 2.56 2481 2469.60 2400.00 2585 2569.60 2500.00 2690 2669.60 2600.00 2798 2769.60 2700.00 2907 2869.60 2800.00 125.23 S 67.55 W 152.22 S 75.83 W 184.48 S 85.67 W 221.64 S 98.59 W 263.51 S 113.29 W 11.89 3.11 15.82 3.93 21.37 5.55 28.84 7.47 38.26 9.42 3019 2969.60 2900.00 3133 3069.60 3000.00 3251 3169.60 3100.00 3371 3269.60 3200.00 3494 3369.60 3300.00 308.84 S 131.74 W 359.61 S 152.80 W 416.33 S 179.10 W 477.82 S 206.65 W 542.14 S 236.32 W 49.60 11.34 63.73 14.13 81.69 17.96 102.28 20.59 124.84 22.55 PAGE 8 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD DIFFERENCE VERTICAL CORRECTION 3619 3469.60 3400.00 3747 3569.60 3500.00 3880 3669.60 3600.00 4020 3769.60 3700.00 4169 3869.60 3800.00 610.40 S 268.31 W 682.86 S 301.27 W 764.19 S 335.09 W 855.26 S 371.79 W 958.05 S 411.95 W 150.08 177.91 211.19 251.37 300.32 25.24 27.83 33.28 40.18 48.96 4323 3969.60 3900.00 4481 4069.60 4000.00 4640 4169.60 4100.00 4798 4269.60 4200.00 4954 4369.60 4300.00 1066.48 S 454.80 W 353.93 1181.40 S 497.27 W 412.09 1297.33 S 539.76 W 470.98 1412.24 S 581.23 W 528.85 1524.74 S 622.83 W 585.04 53.61 58.15 58.89 57.87 56.18 5106 4469.60 4400.00 5258 4569.60 4500.00 5414 4669.60 4600.00 5572 4769.60 4700.00 5729 4869.60 4800.00 1632.07 S 661.36 W 636.72 1738.96 S 703.33 W 689.00 1849.89 S 747.70 W 744.81 1964.13 S 790.96 W 802.67 2075.72 S 836.89 W 859.41 51 52 55 57 56 .68 .28 .81 .87 .74 5886 4969.60 4900.00 6044 5069.60 5000.00 6205 5169.60 5100.00 6361 5269.60 5200.00 6512 5369.60 5300.00 2187.94 S 882.98 W 916.63 2301.41 S 930.91 W 975.29 2416.91 S 979.32 W 1035.55 2528.86 S 1024.25 W 1092.26 2633.05 S 1067.84 W 1143.13 57 58 60 56 5O .22 .66 .26 .71 .87 6661 5469.60 5400.00 6811 5569.60 5500.00 6961 5669.60 5600.00 7112 5769.60 5700.00 7263 5869.60 5800.00 2734.19 S 1112.22 W 2835.43 S 1159.42 W 2937.69 S 1205.03 W 3040.39 S 1252.12 W 3143.19 S 1299.46 W 1192.13 1242.05 1292.18 1343.06 1394.09 49 49 50 5O 51 .00 .93 .13 .89 .03 7413 5969.60 5900.00 7562 6069.60 6000.00 7711 6169.60 6100.00 7859 6269.60 6200.00 8001 6369.60 6300.00 3244.98 S 1345.75 W 3346.17 S 1389.88 W 3447.46 S 1433.97 W 3547.26 S 1477.55 W 3640.12 S 1514.88 W 1444.11 1493.06 1542.07 1589.94 1631.42 50 48 49 47 41 .02 .95 .01 .86 .48 8142 6469.60 6400.00 8285 6569.60 6500.00 8429 6669.60 6600.00 8572 6769.60 6700.00 8717 6869.60 6800.00 3733.93 S 1550.97 W 3828.88 S 1588.05 W 3924.79 S 1625.39 W 4021.08 S 1662.45 W 4118.82 S 1700.75 W 1673.21 1716.00 1759.51 1803.19 1848.18 41 42 43 43 44 .79 .80 .50 .69 .98 PAGE 9 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 8863 6969.60 6900.00 4217.49 S 1738.68 W 1893.69 45.52 9010 7069.60 7000.00 4318.30 S 1775.61 W 1940.42 46.72 9157 7169.60 7100.00 4419.95 S 1814.05 W 1988.10 47.68 9305 7269.60 7200.00 4521.59 S 1852.78 W 2035.85 47.75 9452 7369.60 7300.00 4622.65 S 1890.62 W 2082.98 47.13 9598 7469.60 7400.00 4722.25 S 1929.26 W 2129.32 46.34 9744 7569.60 7500.00 4821.08 S 1968.31 W 2175.23 45.91 9890 7669.60 7600.00 4919.87 S 2006.32 W 2220.85 45.62 10036 7769.60 7700.00 5018.56 S 2045.39 W 2266.70 45.84 10184 7869.60 7800.00 5121.77 S 2082.44 W 2315.11 48.41 10330 7969.60 7900.00 5222.09 S 2118.61 W 2361.31 46.20 10475 8069.60 8000.00 5320.42 S 2153.60 W 2405.85 44.54 10624 8169.60 8100.00 5422.87 S 2196.01 W 2455.18 49.33 10774 8269.60 8200.00 5524.35 S 2240.50 W 2504.45 49.27 10927 8369.60 8300.00 5627.76 S 2292.84 W 2557.58 53.13 11089 8469.60 8400.00 5737.55 S 2357.48 W 2619.58 62.00 11258 8569.60 8500.00 5849.64 S 2436.20 W 2689.22 69.64 11431 8669.60 8600.00 5956.44 S 2528.54 W 2762.31 73.09 11605 8769.60 8700.00 6051.22 S 2634.59 W 2836.24 73.94 11784 8869.60 8800.00 6143.72 S 2749.80 W 2914.67 78.43 11976 8969.60 8900.00 6243.23 S 2879.74 W 3006.50 91.83 12153 9069.60 9000.00 6331.04 S 2996.38 W 3083.50 77.00 12330 9175.48 9105.88 6418.25 S 3108.06 W 3154.52 71.02 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS PBU/12-35 MWD SURVEY 500292258800 JOB NUMBER: AK-MM-951052 NORTH SLOPE BOROUGH KELLY BUSHING ELEV. = 69.60 FT. COMPUTATION DATE: 11/ 3/95 OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 11887 8924.24 8854.64 59 38 S 52.40 W .00 6198.00S 2819.59W 5921.26 11906 8933.54 8863.94 60 57 S 53.10 W 7.75 6207.86S 2832.56W 5937.55 11938 8948.05 8878.45 64 28 S 51.61 W 11.87 6225.06S 2854.84W 5965.68 11969 8960.91 8891.31 67 12 S 52.77 W 9.32 6242.63S 2877.50W 5994.34 12000 8972.08 8902.48 69 55 S 51.87 W 9.28 6260.03S 2900.02W 6022.79 12031 8981.69 8912.09 73 48 S 52.13 W 12.60 6278.08S 2923.12W 6052.08 12063 8989.49 8919.89 77 47 S 51.28 W 12.80 6297.19S 2947.32W 6082.89 12095 8995.39 8925.79 81 15 S 51.74 W 10.77 6317.02S 2972.26W 6114.73 12126 8999.59 8929.99 83 25 S 52.20 W 7.06 6336.27S 2996.87W 6145.95 12154 9002.37 8932.77 85 3 S 51.52 W 6.36 6353.31S 3018.57W 6173.51 12186 9004.85 8935.25 85 57 S 50.88 W 3.48 6373.08S 3043.17W 6205.04 12218 9006.97 8937.37 86 28 S 49.02 W 6.00 6393.70S 3067.70W 6237.00 12250 9008.92 8939.32 86 25 S 49.71 W 2.19 6414.22S 3091.60W 6268.39 12281 9011.11 8941.51 85 42 S 53.32 W 11.50 6434.02S 3116.52W 6300.19 12313 9013.60 8944.00 85 16 S 52.71 W 2.37 6453.03S 3141.75W 6331.78 12342 9015.70 8946.10 86 19 S 51.97 W 4.51 6470.46S 3164.34W 6360.30 12369 9017.34 8947.74 86 47 S 52.43 W 2.38 6487.18S 3185.89W 6387.56 12402 9019.20 8949.60 86 47 S 53.87 W 4.33 6507.05S 3212.40W 6420.68 12434 9020.89 8951.29 87 7 S 53.91 W 1.07 6525.83S 3238.15W 6452.56 12466 9021.96 8952.36 89 0 S 52.87 W 6.74 6544.84S 3263.73W 6484.42 12498 9022.06 8952.46 90 39 S 54.71 W 7.72 6563.70S 3289.50W 6516.36 12529 9021.50 8951.90 91 21 S 55.73 W 3.95 6581.66S 3315.35W 6547.83 12567 9020.44 8950.84 91 54 S 53.82 W 5.29 6603.26S 3345.95W 6585.28 12592 9019.56 8949.96 92 7 S 53.80 W .89 6617.97S 3366.05W 6610.19 12624 9018.59 8948.99 91 22 S 53.63 W 2.38 6636.82S 3391.73W 6642.05 12656 9018.09 8948.49 90 24 S 53.51 W 3.09 6655.82S 3417.47W 6674.03 12688 9018.31 8948.71 88 49 S 52.75 W 5.45 6675.03S 3443.08W 6706.04 12720 9019.30 8949.70 87 37 S 52.96 W 3.79 6694.43S 3468.70W 6738.18 12757 9021.26 8951.67 86 22 S 51.68 W 4.78 6717.33S 3498.34W 6775.61 12791 9023.45 8953.85 86 16 S 51.59 W .39 6738.39S 3524.95W 6809.51 12819 9025.16 8955.56 86 32 S 52.05 W 1.94 6755.28S 3546.43W 6836.82 12851 9027.12 8957.52 86 27 S 51.45 W 1.88 6775.12S 3571.60W 6868.84 12882 9029.09 8959.49 86 12 S 51.64 W 1.02 6794.24S 3595.67W 6899.55 12913 9031.20 8961.60 86 10 S 51.68 W .15 6813.89S 3620.52W 6931.21 12946 9033.06 8963.46 87 9 S 50.42 W 4.98 6833.99S 3645.39W 6963.14 SPE~'- V-SUN DRILLING SERVICES '~ ANCHORAGE ALASKA PAGE 2 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 MWD SURVEY JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 12977 9034.41 8964.81 13005 9035.22 8965.62 13036 9035.78 8966.18 13068 9036.25 8966.65 13099 9036.77 8967.17 87 54 S 51.74 W 4.83 6853.64S 3669.71W 88 46 S 52.40 W 3.89 6870.86S 3691.82W 89 10 S 52.30 W 1.32 6889.93S 3716.53W 89 8 S 51.49 W 2.55 6909.55S 3741.55W 88 58 S 51.75 W .97 6929.14S 3766.28W 6994.37 7022.38 7053.57 7085.35 7116.87 13129 9037.32 8967.72 13160 9037.92 8968.33 13192 9038.54 8968.94 13222 9039.10 8969.50 13252 9039.67 8970.07 88 53 S 52.86 W 3.78 6947.17S 3789.61W 88 53 S 53.05 W .61 6966.04S 3814.61W 88 53 S 52.91 W .43 6985.28S 3840.14W 88 56 S 52.70 W .74 7003.07S 3863.57W 88 55 S 53.04 W 1.11 7021.56S 3888.00W 7146.34 7177.66 7209.62 7239.03 7269.66 13283 9040.25 8970.65 13315 9040.79 8971.19 13346 9041.25 8971.66 13378 9041.69 8972.09 13408 9042.09 8972.49 88 55 S 53.20 W .52 7040.17S 3912.80W 89 6 S 53.05 W .77 7058.96S 3937.84W 89 10 S 53.04 W .19 7077.54S 3962.55W 89 17 S 53.77 W 2.31 7096.65S 3988.28W 89 10 S 53.70 W .46 7114.53S 4012.66W 7300.66 7331.96 7362.88 7394.93 7425.16 13439 9042.54 8972.94 13469 9042.94 8973.34 13501 9043.37 8973.77 13531 9043.74 8974.'14 13564 9044.09 8974.50 89 11 S 53.78 W .27 7133.09S 4037.96W 89 13 S 53.52 W .89 7150.60S 4061.75W 89 15 S 53.35 W .54 7169.83S 4087.67W 89 20 S 54.29 W 3.10 7187.79S 4112.24W 89 22 S 53.46 W 2.57 7206.82S 4138.30W 7456.53 7486.08 7518.35 7548.78 7581.05 13593 9044.45 8974.85 13625 9044.98 8975.38 13657 9045.58 8975.98 13690 9046.21 8976.61 13723 9046.83 8977.23 89 11 S 53.18 W 1.15 7224.13S 4161.55W 88 56 S 53.09 W .82 7243.53S 4187.41W 88 55 S 53.82 W 2.26 7262.78S 4213.39W 88 51 S 53.80 W .19 7281.92S 4239.55W 88 56 S 53.37 W 1.34 7301.34S 4265.87W 7610.03 7642.36 7674.69 7707.10 7739.81 13749 9047.30 8977.70 13782 9047.85 8978.25 13810 9048.28 8978.68 13828 9048.50 8978.90 13857 9048.89 8979.29 89 2 S 53.33 W .37 7317.27S 4287.28W 89 1 S 53.92 W 1.81 7336.62S 4313.56W 89 15 S 53.67 W 1.21 7353.53S 4336.65W 89 19 S 54.50 W 4.66 7364.01S 4351.12W 89 8 S 52.80 W 5.92 7381.12S 4374.38W 7766.50 7799.13 7827.75 7845.62 7874.49 13886 9049.33 8979.73 13917 9049.77 8980.17 13952 9050.23 8980.63 13982 9050.69 8981.09 14013 9051.21 8981.61 89 6 S 52.20 W 2.10 7398.52S 4397.06W 89 13 S 52.50 W 1.05 7417.29S 4421.38W 89 17 S 53.60 W 3.12 7438.49S 4449.57W 88 58 S 53.60 W 1.01 7456.64S 4474.19W 89 4 S 53.70 W .46 7474.97S 4499.09W 7903.07 7933.77 7969.04 7999.63 803O.55 SPE~,'¥-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 MWD SURVEY JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 14044 9051.73 8982.13 88 58 S 53.40 W 1.04 14075 9052.26 8982.66 89 4 S 52.70 W 2.26 14106 9052.75 8983.15 89 6 S 52.90 W .65 14137 9053.22 8983.62 89 8 S 53.80 W 2.93 14168 9053.63 8984.03 89 20 S 53.00 W 2.66 7493.08S 4523.61W 8061.02 7511.86S 4548.57W 8092.25 7530.61S 4573.28W 8123.27 7548.97S 4597.95W 8154.02 7567.50S 4622.90W 8185.09 14182 9053.77 8984.17 89 30 S 53.90 W 6.43 14222 9054.11 8984.51 89 30 S 53.90 W .00 7575.96S 4634.32W 8199.31 7599.16S 4666.14W 8238.69 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 8917.41 FEET AT SOUTH 31 DEG. 33 MIN. WEST AT MD = 14222 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 234.05 DEG. TIED INTO 12-35PB1 AT 11887.89' KICK OFF POINT AT 11906.65' INTERPOLATED DEPTH 14222' SP.E~"-"-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 4 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 11887 8924.24 8854.64 12887 9029.47 8959.87 13887 9049.35 8979.75 14222 9054.11 8984.51 6198.00 S 2819.59 W 2963.65 6797.75 S 3600.11 W 3858.42 894.77 7399.50 S 4398.31 W 4838.54 980.12 7599.16 S 4666.14 W 5167.89 329.36 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPER~"-SUN DRILLING SERVICES , ANCHORAGE ALASKA PAGE 5 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES MD-TVD VERTICAL DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 11887 8924.24 8854.64 11993 8969.60 8900.00 14222 9054.11 8984.51 6198.00 S 2819.59 W 2963.65 6256.04 S 2894.90 W 3023.78 60.13 7599.16 S 4666.14 W 5167.89 2144.12 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS 0 F! I I_.1-- I IM CS SIERL/I ICE S WELL LOG TRANSMITTAL To: State of Alaska December 04, 1995 Atto: Larry Grant, AOC_K3C ~ 3001 Porcupine Dr. ~ Anchorage, Alaska 99501 4 ~/ MWD Formation Evaluation Logs - DS 12-35 & 12-35 PB1 The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention of.' Jim Galvin, Sperry-Sun Drilling Services, 5631 Silverado Way, #G, Anchorage, AK 99518 2 LDWG format magnetic tapes with LIS listings. 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 · (9.07) 563-3256 · Fax (907) 563-7252 A Dresser Industries, Inc. Company ,,, D F! I I--I_1 IM O~ SEFI~JII-- E S 'WELI~ Il)G TRANSMITTAL To: State of Alaska. December 4, 1995 ) 3001 Porcupine Dr. Anchorage, Alaska 99501 MWD Formation Evaluation Logs - DS 12-35, & PB1, AK-MM-951052, AK-MW-50090 The technical data listed below is being subna'tted herewith. Please address any problems or concerns to the attention of.' Jim Galvin, Sperry-Stm Drilling Services, 5631 Silverado Way, gG, Anchorage, AK 99518 DS 12-35: 2"x 5" MD Resistivity and Gamma Ray Logs: 50-029-225884)0 1 Blueline 1 Folded Sepia 2" x 5" TVD Resistivity and Gamma Ray Logs: 50-029-22588-00 1 Blueline 1 Folded Sepia DS 12-35 PBI: 2" x 5" MD Gamma Ray Log: 50-029-22588-70 504)29-22588*70 ~aska Oil ~ ~as Cons. 1 Blueline 1 Folded Sepia 1 Blueline 1 Folded Sepia 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 · (907) 563-3256 · Fax (907) 563-7252 A Dresser Industries, Inc. Company LARRY GRANT Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHORAGE AK, 99501. Date: RE: 1 November 1995 Transmittal of Data ECC #: 6506.00 Sent by: HAND CARRY Data: SBT/GR Dear Sir/Madam, Reference: PRUDHOE BAY NORTH SLOPE, AK Enclosed, please find the data as described below: Prints/Films: 1 SBT/GR FINAL BL+RF Run # 1 Please sign and return to: Attn. Rodney D. Paulson Atlas' Wireline Services 5600 B Street Suite 201 z/) ~Anchorage, AK 99518 ~ /~Or FAX to (907) 563-7803 Received ~ D ate .?/~J 0 November 7, 1995 AOGCC Larry Grant 3001 Porcupine Dr Anchorage, AK 99501 Dear Mr. Grant, Re: Survey Data 18-24A~/]/( 12-35, 12-35~P~~' ... Enclosed are two hard copies of the above mentioned file(s). Well 18-24AL1 Tied into 1.8-24A at 9485', tied in at subsea TVD, interpolated depth 10410' Well 12-35PB1 Pilot hole, surface to 12,330' Well 12-35 Tied into 12-35PB1 at 11887.89', kickoff point 11906.65, interpol, ated depth 14222'. Please call me at 563-3256 if you have any questions or concerns. Sandra~~ti'fkin Dept. Specialist Attachments. 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 · (9.07) 563~3256 · Fax (907) 563-7252 A Dresser Industries, Inc. Company : SP( -"-SUN DRILLING SERVICES ~'," ~ ~ ~ ~ ANCHORAGE ALASKA ~ PAGE PBU/12-35PB1 500292258870 JOB ~BER: AK-MW-50090' ~/ NORTH SLOPE BOROUGH KELLY BUSHING ELEV. = 69.6~ FT. COMP~ATION DATE: 11/ 3/95 OPE~TOR: ~CO ALAS~ INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 0 .00 -69.60 0 0 N .00 E .00 .00N .00E .00 143 143.40 73.80 0 12 N 4.70 E .14 .25N .02E -.16 241 241.40 171.80 0 5 S 71.20 E .24 .40N .liE -.32 333 333.40 263.80 0 29 N 78.90 E .45 .45N .56E -.72 426 426.73 357.13 0 13 N 47.90 E .34 .65N 1.09E -1.27 521 521.06 451.46 0 36 N 76.40 E .44 .89N 1.71E -1.91 611 611.79 542.19 0 55 N 89.60 E .41 1.01N 2.91E -2.95 706 706.78 637.18 1 43 N 77.80 E .88 1.32N 5.08E -4.88 798 798.24 728.64 1 4 S 84.00 E .85 1.52N 7.27E -6.77 891 891.34 821.74 0 39 S 44.80 E .75 1.05N 8.50E -7.50 986 986.22 916.62 1 20 S 79.10 W 1.88 .46N 7.79E -6.58 1081 1081.49 1011.89 1 49 S 79.00 W .50 .04S 5.21E -4.20 1173 1173.44 1103.84 1 40 S 67.90 W .40 .82S 2.54E -1.57 1268 1268.01 1198.41 2 5 S 72.50 W .47 1.86S .38W 1.40 1364 1363.71 1294.11 2 52 S 66.40 W .87 3.35S 4.26W 5.41 1457 1457.53 1387.93 2 33 S 67.10 W .34 5.11S 8.35W 9.76 1551 1550.58 1480.98 2 46 S 64.40 W .26 6.89S 12.30W 14.00 1644 1643.34 1573.74 3 34 S 46.20 W 1.38 9.87S 16.42W 19.08 1736 1736.08 1666.48 4 16 S 35.90 W 1.07 14.69S 20.54W 25.25 1831 1829.78 1760.18 5 9 S 29.10 W 1.11 21.22S 24.66W 32.42 1925 1923.35 1853.75 7 0 S 28.60 W 1.96 29.96S 29.46W 41.44 2017 2014.83 1945.23 7 39 S 25.90 W .81 40.42S 34.84W 51.93 2111 2108.32 2038.72 8 46 S 20.00 W 1.47 52.85S 40.05W 63.45 2206 2201.60 2132.00 10 44 S 23.30 W 2.16 67.73S 46.01W 77.01 2299 2292.57 2222.97 12 24 S 18.60 W 2.06 85.14S 52.61W 92.57 2392 2383.27 2313.67 13 40 S 22.00 W 1.59 104.83S 59.93W 110.06 2484 2472.67 2403.07 14 40 S 19.00 W 1.35 125.99S 67.82W 128.86 2578 2563.24 2493.64 16 45 S 15.40 W 2.44 150.34S 75.30W 149.22 2671 2651.73 2582.13 19 49 S 17.80 W 3.38 178.35S 83.70W 172.47 2764 2737.75 2668.15 22 1 S 19.60 W 2.50 209.49S 94.27W 199.30 2858 2824.75 2755.15 24 6 S 19.10 W 2.20 244.45S 106.54W 229.76 2951 2908.61 2839.01 25 32 S 22.30 W 2.13 280.71S 120.27W 262.16 3044 2991.80 2922.20 28 6 S 22.00 W 2.75 319.66S 136.12W 297.86 3135 3071.62 3002.02 30 7 S 23.30 W 2.33 360.68S 153.26W 335.81 3228 3150.61 3081.01 33 21 S 25.90 W 3.78 405.08S 173.64W 378.38 MICROfiLmeD Date.~~.~~ S ~" PAGE 2 '-SUN DRILLING SERVICES ANCHORAGE ALASKA SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 3319 3226.64 3157.04 3410 3301.42 3231.82 3486 3362.91 3293.31 3593 3448.99 3379.39 3690 3525.54 3455.94 34 2 S 23.60 W 1.58 451.13S 194.86W 34 55 S 24.90 W 1.27 497.95S 215.96W 35 59 S 24.60 W 1.42 537.73S 234.29W 37 35 S 25.40 W 1.55 596.07S 261.51W 38 31 S 24.40 W 1.16 650.43S 286.73W 422.59 467.16 505.36 561.63 613.97 3784 3597.40 3527.80 3877 3667.21 3597.61 3970 3734.22 3664.62 4065 3799.90 3730.30 4158 3862.13 3792.53 40 35 S 23.00 W 2.41 704.79S 310.58W 42 40 S 21.90 W 2.37 762.14S 334.26W 45 13 S 22.00 W 2.74 822.07S 358.42W 46 50 S 21.10 W 1.83 885.40S 383.42W 49 20 S 21.70 W 2.74 949.97S 408.73W 665.19 718.03 772.77 830.19 888.59 4250 3922.16 3852.56 4346 3984.01 3914.41 4437 4041.85 3972.25 4531 4100.93 4031.33 4624 4159.34 4089.74 49 4 S 21.70 W .29 1014.61S 434.46W 50 32 S 20.90 W 1.65 1082.83S 461.05W 50 57 S 19.80 W 1.04 1149.20S 485.66W 51 9 S 20.70 W .77 1217.80S 510.97W 50 45 S 19.30 W 1.25 1285.47S 535.61W 947.36 1008.94 1067.83 1128.59 1188.26 4716 4217.64 4148.04 4807 4275.18 4205.58 4899 4333.80 4264.20 4989 4392.60 4323.00 5083 4454.80 4385.20 50 45 S 20.20 W .76 1352.65S 559.72W 50 29 S 19.40 W .74 1418.62S 583.47W 50 10 S 21.00 W 1.38 1484.96S 607.88W 48 47 S 19.00 W 2.28 1549.61S 631.42W 48 41 S 20.60 W 1.28 1616.31S 655.44W 1247.23 1305.18 1363.89 1420.90 1479.50 5174 4514.70 4445.10 5269 4576.63 4507.03 5363 4636.67 4567.07 5456 4696.38 4626.78 5552 4757.18 4687.58 48 35 S 21.70 W .92 1679.77S 679.99W 50 0 S 21.30 W 1.51 1746.76S 706.37W 50 5 S 22.20 W .74 1813.32S 732.93W 50 25 S 20.80 W 1.21 1880.15S 759.25W 51 3 S 20.60 W .68 1949.74S 785.55W 1536.63 1597.32 1657.89 1718.43 1780.58 5645 4816.49 4746.89 5738 4875.90 4806.30 5830 4934.05 4864.45 5921 4991.74 4922.14 6012 5048.91 4979.31 50 1 S 22.80 W 2.13 2016.68S 812.18W 50 41 S 22.60 W .74 2082.83S 839.84W 50 20 S 22.10 W .57 2148.11S 866.68W 50 54 S 22.90 W .92 2213.05S 893.59W 50 57 S 22.90 W .04 2277.92S 920.99W 1841.43 1902.66 1962.72 2022.62 2082.88 6105 5107.71 5038.11 6195 5163.48 5093.88 6287 5221.30 5151.70 6380 5282.00 5212.40 6473 5343.27 5273.67 51 14 S 22.80 W .32 2345.05S 949.28W 51 45 S 22.60 W .61 2409.74S 976.33W 50 5 S 21.60 W 2.00 2475.73S 1003.14W 49 19 S 21.80 W .85 2542.25S 1029.61W 47 50 S 23.40 W 2.06 2606.37S 1056.29W 2145.20 2205.08 2265.52 2326.00 2385.24 SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS MEASD VERTICAL VERTICAL INCLN DEPTH DEPTH DEPTH DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 6566 5405.54 5335.94 6658 5467.49 5397.89 6754 5531.29 5461.69 6847 5593.75 5524.15 6942 5656.58 5586.98 47 46 S 23.50 W .11 2669.38S 1083.62W 47 58 S 24.10 W .53 2732.06S 1111.27W 48 14 S 25.50 W 1.12 2796.62S l141.10W 48 15 S 24.30 W .95 2860.09S 1170.56W 48 12 S 23.70 W .48 2924.36S 1199.18W 2444.36 2503.54 2565.59 2626.70 2687.60 7037 5719.65 5650.05 7134 5784.06 5714.46 7227 5845.69 5776.09 7322 5908.43 5838.83 7417 5972.24 5902.64 48 32 S 24.80 W .94 2989.05S 1228.32W 48 36 S 25.00 W .17 3055.26S 1259.06W 48 28 S 24.50 W .43 3118.62S 1288.26W 48 17 S 24.70 W .25 3182.85S 1317.67W 47 53 S 23.90 W .76 3247.65S 1346.93W 2749.17 2812.92 2873.77 2935.28 2997.01 7511 6035.06 5965.46 7605 6098.09 6028.49 7698 6160.67 6091.07 7792 6223.52 6153.92 7885 6288.18 6218.58 47 47 S 23.40 W .41 3311.21S 1374.76W 47 44 S 23.20 W .17 3374.99S 1402.23W 48 0 S 24.00 W .70 3438.40S 1429.94W 47 54 S 24.00 W .12 3502.06S 1458.28W 44 57 S 21.40 W 3.72 3564.74S 1484.54W 3056.85 3116.53 3176.19 3236.51 3294.57 7981 6355.47 6285.87 8076 6422.63 6353.03 8170 6489.21 6419.61 8263 6554.16 6484.56 8357 6619.77 6550.17 44 55 S 22.30 W .67 3627.08S 1509.54W 45 9 S 20.70 W 1.22 3689.65S 1534.18W 45 24 S 20.90 W .29 3752.50S 1558.06W 45 42 S 21.80 W .77 3814.18S 1582.17W 45 50 S 21.20 W .48 3876.91S 1606.88W 3351.40 3408.09 3464.31 3520.04 3576.86 8453 6686.42 6616.82 8545 6750.63 6681.03 8640 6816.25 6746.65 8732 6879.38 6809.78 8827 6945.25 6875.65 45 50 S 21.00 W .15 3940.97S 1631.60W 45 56 S 21.10 W .13 4002.80S 1655.39W 46 25 S 21.40 W .56 4066.52S 1680.18W 46 35 S 21.60 W .24 4128.43S 1704.56W 46 35 S 20.60 W .76 4193.39S 1729.63W 3634.49 3690.05 3747.52 3803.61 3862.04 8921 7009.36 6939.76 9013 7071.99 7002.39 9109 7136.76 7067.16 9202 7199.66 7130.06 9298 7264.99 7195.39 46 57 S 19.70 W .80 4257.42S 1753.12W 47 19 S 20.90 W 1.03 4320.72S 1776.54W 47 24 S 20.60 W .25 4386.51S 1801.46W 47 28 S 20.90 W .25 4450.56S 1825.73W 47 17 S 20.80 W .19 4516.92S 1851.01W 3918.64 3974.76 4033.56 4090.82 4150.23 9391 7328.21 7258.61 9487 7393.68 7324.08 9582 7458.47 7388.87 9676 7523.01 7453.41 9771 7588.14 7518.54 47 9 S 20.40 W .35 4580.89S 1875.05W 46 57 S 20.60 W .26 4646.79S 1899.69W 46 48 S 22.00 W 1.09 4711.26S 1924.82W 46 44 S 21.60 W .32 4775.02S 1950.33W 46 37 S 20.70 W .70 4839.43S 1975.24W 4207.25 4265.89 4324.09 4382.16 4440.14 ' I. ANCHORAGE ALAS I~ PAGE SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/9 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 9866 7653.38 7583.78 9960 7717.87 7648.27 10053 7781.13 7711.53 10148 7844.89 7775.29 10250 7914.67 7845.07 46 38 46 20 47 54 47 25 46 59 S 21.40 W .54 4903.88S 2000.05W S 22.10 W .62 4966.99S 2025.23W S 20.20 W 2.25 5030.54S 2049.80W S 19.40 W .80 5096.40S 2073.51W S 20.20 W .71 5167.32S 2099.04W 4498.06 4555.50 4612.70 4670.55 4732.86 10343 7978.49 7908.89 10440 8045.30 7975.70 10535 8109.98 8040.38 10628 8171.87 8102.27 10723 8235.31 8165.71 46 9 46 16 48 1 48 17 47 42 S 18.90 W 1.36 5230.85S 2121.60W S 20.10 W .91 5296.55S 2144.87W S 22.60 W 2.66 5361.47S 2170.27W S 22.90 W .39 5425.21S 2197.00W S 24.00 W 1.07 5489.85S 2225.04W 4788.42 4845.83 4904.50 4963.56 5024.21 10816 8297.57 8227.97 10910 8359.08 8289.48 11005 8418.67 8349.07 11101 8476.90 8407.30 11195 8532.91 8463.31 48 22 50 28 51 52 53 5 54 15 S 25.00 W 1.07 5552.85S 2253.75W S 29.40 W 4.17 5616.65S 2286.59W S 30.10 W 1.59 5680.93S 2323.33W S 32.40 W 2.29 5745.76S 2362.69W S 36.20 W 3.47 5808.65S 2405.61W 5084.44 5148.48 5215.96 5285.88 5357.55 11290 8587.79 8518.19 11384 8642.00 8572.40 11477 8695.59 8626.00 11568 8747.94 8678.34 11599 8765.67 8696.07 54 37 54 45 55 3 54 50 54 34 S 38.30 W 1.85 5869.74S 2452.07W S 42.30 W 3.48 5928.08S 2501.54W S 47.10 W 4.23 5982.25S 2555.16W S 50.00 W 2.61 6031.64S 2611.08W S 50.30 W 1.19 6047.69S 2630.32W 5431.02 5505.32 5580.53 5654.79 5679.79 11630 8783.71 8714.11 11660 8800.80 8731.20 11692 8818.95 8749.35 11721 8835.34 8765.74 11754 8853.38 8783.78 55 4 55 9 55 50 56 11 56 52 S 51.00 W 2.43 6063.92S 2650.11W S 51.20 W .60 6079.31S 2669.18W S 50.80 W 2.39 6095.93S 2689.70W S 51.80 W 3.07 6111.14S 2708.68W S 51.30 W 2.44 6128.10S 2730.05W 5705.34 5729.82 5756.19 5780.48 5807.74 11783 8869.15 8799.55 11814 8885.57 8815.97 11887 8923.94 8854.34 11916 8938.66 8869.06 11978 8970.95 8901.35 57 32 57 41 59 38 59 20 57 34 S 52.00 W 3.06 6143.29S 2749.25W S 52.10 W .56 6159.21S 2769.65W S 52.40 W 2.66 6197.79S 2819.49W S 52.60 W 1.16 6213.00S 2839.31W S 53.90 W 3.40 6244.48S 2881.46W 5832.19 5858.06 5921.05 5946.03 5998.63 12009 8987.62 8918.02 12040 9004.73 8935.13 12070 9022.22 8952.62 12102 9039.99 8970.39 12133 9057.90 8988.30 56 42 55 42 55 12 55 0 54 30 S 54.00 W 2.85 6259.66S 2902.31W S 52.40 W 5.41 6274.97S 2922.78W S 52.50 W 1.64 6290.45S 2942.92W S 53.60 W 2.98 6305o76S 2963.28W S 52.10 W 4.26 6321.06S 2983.47W 6024.42 6049.98 6075.38 6100.84 6126.18 ii' ANCHORAGE ALASKA PAGE 5 S/AkRED SERVICES DRILLING PBU/12-35PB1 500292258870 NORT}{ SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 MWD SURVEY JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 12164 9076.27 9006.67 54 5 S 52.60 W 1.81 12195 9094.33 9024.73 53 42 S 52.40 W 1.41 12225 9112.59 9042.99 53 24 S 52.20 W 1.11 12256 9131.16 9061.56 53 0 S 51.00 W 3.36 12287 9149.84 9080.25 52 35 S 52.00 W 2.88 6336.685 3003.71W 6151.72 6351.765 3023.36W 6176.48 6366.88S 3042.93W 6201.20 6382.295 3062.38W 6226.00 6397.625 3081.64W 6250.58 12330 9175.48 9105.88 52 35 S 52.00 W .00 6418.255 3108.06W 6284.09 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 7131.20 FEET AT SOUTH 25 DEG. 50 MIN. WEST AT MD = 12330 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 234.05 DEG. PILOT HOLE, SURFACE TO 12,330' son S V CmS ANCHORAGE ALASKA PAGE 6 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 OPERATOR: ARCO ALASKA INC FT. INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 0 .00 -69.60 .00 N .00 E 1000 999.90 930.30 .40 N 7.48 E 2000 1997.64 1928.04 38.34 S 33.83 W 3000 2952.52 2882.92 300.72 S 128.44 W 4000 3754.90 3685.29 841.39 S 366.22 W .00 .10 .10 2.36 2.26 47.48 45.12 245.10 197.62 5000 4399.46 4329.86 1557.02 S 633.98 W 6000 5041.32 4971.72 2269.30 S 917.35 W 7000 5695.03 5625.43 2963.75 S 1216.63 W 8000 6368.88 6299.28 3639.45 S 1514.61 W 9000 7062.81 6993.21 4311.42 S 1772.99 W 600.54 355.43 958.68 358.15 1304.97 346.29 1631.12 326.15 1937.19 306.07 10000 7745.13 7675.53 4993.46 S 2035.98 W 11000 8415.15 8345.55 5677.05 S 2321.08 W 12000 8982.49 8912.89 6255.08 S 2896.00 W 12330 9175.48 9105.88 6418.25 S 3108.06 W 2254.87 317.68 2584.85 329.98 3017.51 432.66 3154.52 137.02 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. S P~I' ~ PAGE 7 SUN DRILLING SERVICES ANCHORAGE ALASKA SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE MEASD VERTICAL DEPTH DEPTH SUB-SEA TOTAL VERTICAL RECTANGULAR COORDINATES MD-TVD DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE VERTICAL CORRECTION 0 .00 69 69.60 169 169.60 269 269.60 369 369.60 -69.60 .00 N .00 E .00 .00 .01 N .00 E .00 100.00 .34 N .03 E .00 200.00 .38 N .15 E .00 300.00 .51 N .87 E .00 .00 .00 .00 .00 469 469.60 569 569.60 669 669.60 769 769.60 869 869.60 400.00 .76 N 1.24 E .01 500.00 1.00 N 2.25 E .01 600.00 1.08 N 3.98 E .03 700.00 1.57 N 6.74 E .07 800.00 1.23 N 8.33 E .08 .00 .01 .02 .04 .01 969 969.60 1069 1069.60 1169 1169.60 1269 1269.60 1369 1369.60 900.00 .53 N 8.18 E .09 1000.00 .03 N 5.58 E .13 1100.00 .78 S 2.64 E .18 1200.00 1.88 S .44 W .23 1300.00 3.47 S 4.53 W .33 .01 .04 .05 .05 .10 1470 1469.60 1570 1569.60 1670 1669.60 1770 1769.60 1870 1869.60 1400.00 5.32 S 8.85 W .44 1500.00 7.29 S 13.13 W .55 1600.00 11.01 S 17.60 W .73 1700.00 16.72 S 22.01 W .99 1800.00 24.40 S 26.42 W 1.38 .11 .11 .17 .26 .39 1971 1969.60 2072 2069.60 2173 2169.60 2275 2269.60 2378 2369.60 1900.00 35.01 S 32.18 W 2.11 .73 2000.00 47.28 S 38.00 W 3.03 .92 2100.00 62.16 S 43.61 W 4.30 1.26 2200.00 80.35 S 51.00 W 6.22 1.92 2300.00 101.74 S 58.68 W 8.78 2.56 2481 2469.60 2585 2569.60 2690 2669.60 2798 2769.60 2907 2869.60 2400.00 125.23 S 67.55 W 11.89 2500.00 152.22 S 75.83 W 15.82 2600.00 184.48 S 85.67 W 21.37 2700.00 221.64 S 98.59 W 28.84 2800.00 263.51 S 113.29 W 38.26 3.11 3.93 5.55 7.47 9.42 3019 2969.60 3133 3069.60 3251 3169.60 3371 3269.60 3494 3369.60 2900.00 308.84 S 131.74 W 49.60 3000.00 359.61 S 152.80 W 63.73 3100.00 416.33 S 179.10 W 81.69 3200.00 477.82 S 206.65 W 102.28 3300.00 542.14 S 236.32 W 124.84 11.34 14.13 17.96 20.59 22.55 SPERI~? SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 8 SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES NORTH/SOUTH EAST/WEST MD-TVD VERTICAL DIFFERENCE CORRECTION 3619 3469.60 3400.00 3747 3569.60 3500.00 3880 3669.60 3600.00 4020 3769.60 3700.00 4169 3869.60 3800.00 610.40 S 268.31 W 682.86 S 301.27 W 764.19 S 335.09 W 855.26 S 371.79 W 958.05 S 411.95 W 150.08 25.24 177.91 27.83 211.19 33.28 251.37 40.18 300.32 48.96 4323 3969.60 3900.00 4481 4069.60 4000.00 4640 4169.60 4100.00 4798 4269.60 4200.00 4954 4369.60 4300.00 1066.48 S 454.80 W 1181.40 S 497.27 W 1297.33 S 539.76 W 1412.24 S 581.23 W 1524.74 S 622.83 W 353.93 53.61 412.09 58.15 470.98 58.89 528.85 57.87 585.04 56.18 5106 4469.60 4400.00 5258 4569.60 4500.00 5414 4669.60 4600.00 5572 4769.60 4700.00 5729 4869.60 4800.00 1632.07 S 661.36 W 1738.96 S 703.33 W 1849.89 S 747.70 W 1964'.13 S 790.96 W 2075.72 S 836.89 W 636.72 51.68 689.00 52.28 744.81 55.81 802.67 57.87 859.41 56.74 5886 4969.60 4900.00 6044 5069.60 5000.00 6205 5169.60 5100.00 6361 5269.60 5200.00 6512 5369.60 5300.00 2187.94 S 882.98 W 2301.41 S 930.91 W 2416.91 S 979.32 W 2528.86 S 1024.25 W 2633.05 S 1067.84 W 916.63 57.22 975.29 58.66 1035.55 60.26 1092.26 56.71 1143.13 50.87 6661 5469.60 5400.00 6811 5569.60 5500.00 6961 5669.60 5600.00 7112 5769.60 5700.00 7263 5869.60 5800.00 2734.19 S 1112.22 W 2835.43 S 1159.42 W 2937.69 S 1205.03 W 3040.39 S 1252.12 W 3143.19 S 1299.46 W 1192.13 49.00 1242.05 49.93 1292.18 50.13 1343.06 50.89 1394.09 51.03 7413 5969.60 5900.00 7562 6069.60 6000.00 7711 6169.60 6100.00 7859 6269.60 6200.00 8001 6369.60 6300.00 3244.98 S 1345.75 W 3346.17 S 1389.88 W 3447.46 S 1433.97 W 3547.26 S 1477.55 W 3640.12 S 1514.88 W 1444.11 50.02 1493.06 48.95 1542.07 49.01 1589.94 47.86 1631.42 41.48 8142 6469.60 6400.00 8285 6569.60 6500.00 8429 6669.60 6600.00 8572 6769.60 6700.00 8717 6869.60 6800.00 3733.93 S 1550.97 W 3828.88 S 1588.05 W 3924.79 S 1625.39 W 4021.08 S 1662.45 W 4118.82 S 1700.75 W 1673.21 41.79 1716.00 42.80 1759.51 43.50 1803.19 43.69 1848.18 44.98 SPERm"' SHARED SERVICES DRILLING PBU/12-35PB1 500292258870 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 -SUN DRILLING SERVICES PAGE ANCHORAGE ALASKA DATE OF SURVEY: 101195 JOB NUMBER: AK-MW-50090 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES MD-TVD DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE VERTICAL CORRECTION 8863 6969.60 6900.00 4217.49 S 1738.68 W 1893.69 9010 7069.60 7000.00 4318.30 S 1775.61 W 1940.42 9157 7169.60 7100.00 4419.95 S 1814.05 W 1988.10 9305 7269.60 7200.00 4521.59 S 1852.78 W 2035.85 9452 7369.60 7300.00 4622.65 S 1890.62 W 2082.98 45.52 46.72 47.68 47.75 47.13 9598 7469.60 7400.00 4722.25 S 1929.26 W 2129.32 9744 7569.60 7500.00 4821.08 S 1968.31 W 2175.23 9890 7669.60 7600.00 4919.87 S 2006.32 W 2220.85 10036 7769.60 7700.00 5018.56 S 2045.39 W 2266.70 10184 7869.60 7800.00 5121.77 S 2082.44 W 2315.11 46.34 45.91 45.62 45.84 48.41 10330 7969.60 7900.00 5222.09 S 2118.61 W 2361.31 10475 8069.60 8000.00 5320.42 S 2153.60 W 2405.85 10624 8169.60 8100.00 5422.87 S 2196.01 W 2455.18 10774 8269.60 8200.00 5524.35 S 2240.50 W 2504.45 10927 8369.60 8300.00 5627.76 S 2292.84 W 2557.58 46.20 44.54 49.33 49.27 53.13 11089 8469.60 8400.00 5737.55 S 2357.48 W 2619.58 11258 8569.60 8500.00 5849.64 S 2436.20 W 2689.22 11431 8669.60 8600.00 5956.44 S 2528.54 W 2762.31 11605 8769.60 8700.00 6051.22 S 2634.59 W 2836.24 11784 8869.60 8800.00 6143.72 S 2749.80 W 2914.67 62.00 69.64 73.09 73.94 78.43 11976 8969.60 8900.00 6243.23 S 2879.74 W 3006.50 12153 9069.60 9000.00 6331.04 S 2996.38 W 3083.50 12330 9175.48 9105.88 6418.25 S 3108.06 W 3154.52 91.83 77.00 71.02 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS SP~ 'f-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 1 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DIRECTION DEGREES DATE OF SURVEY: 102095 MWD SURVEY I~['~ . KELLY BUSHING ELEV. ~-,//6'~'~ FI OPERATOR: ARCO ALASKA IN~~ DLS TOTAL RECTANGULAR COORDINATES VERT. DG/100 NORTH/SOUTH EAST/WEST SECT. 11887 8924.24 8854.64 11906 8933.54 8863.94 11938 8948.05 8878.45 11969 8960.91 8891.31 12000 8972.08 8902.48 59 38 S 52.40 W .00 60 57 S 53.10 W 7.75 64 28 S 51.61 W 11.87 67 12 S 52.77 W 9.32 69 55 S 51.87 W 9.28 6198.00S 2819.59W 5921.26 6207.86S 2832.56W 5937.55 6225.06S 2854.84W 5965.68 6242.63S 2877.50W 5994.34 6260.03S 2900.02W 6022.79 12031 8981.69 8912.09 73 48 12063 8989.49 8919.89 77 47 12095 8995.39 8925.79 81 15 12126 8999.59 8929.99 83 25 12154 9002.37 8932.77 85 3 S 52.13 W 12.60 S 51.28 W 12.80 S 51.74 W 10.77 S 52.20 W 7.06 S 51.52 W 6.36 6278.08S 2923.12W 6052.08 6297.19S 2947.32W 6082.89 6317.02S 2972.26W 6114.73 6336.27S 2996.87W 6145.95 6353.31S 3018.57W 6173.51 12186 9004.85 8935.25 12218 9006.97 8937.37 12250 9008.92 8939.32 12281 9011.11 8941.51 12313 9013.60 8944.00 85 57 S 50.88 W 3.48 86 28 S 49.02 W 6.00 86 25 S 49.71 W 2.19 85 42 S 53.32 W 11.50 85 16 S 52.71 W 2.37 6373.08S 3043.17W 6205.04 6393.70S 3067.70W 6237.00 6414.22S 3091.60W 6268.39 6434.02S 3116.52W 6300.19 6453.03S 3141.75W 6331.78 12342 9015.70 8946.10 12369 9017.34 8947.74 12402 9019.20 8949.60 12434 9020.89 8951.29 12466 9021.96 8952.36 86 19 S 51.97 W 4.51 86 47 S 52.43 W 2.38 86 47 S 53.87 W 4.33 87 7 S 53.91 W 1.07 89 0 S 52.87 W 6.74 6470.46S 3164.34W 6360.30 6487.18S 3185.89W 6387.56 6507.05S 3212.40W 6420.68 6525.83S 3238.15W 6452.56 6544.84S 3263.73W 6484.42 12498 9022.06 8952.46 12529 9021.50 8951.90 12567 9020.44 8950.84 12592 9019.56 8949.96 12624 9018.59 8948.99 90 39 S 54.71 W 7.72 91 21 S 55.73 W 3.95 91 54 S 53.82 W 5.29 92 7 S 53.80 W .89 91 22 S 53.63 W 2.38 6563.70S 3289.50W 6516.36 6581.66S 3315.35W 6547.83 6603.26S 3345.95W 6585.28 6617.97S 3366.05W 6610.19 6636.82S 3391.73W 6642.05 12656 9018.09 8948.49 12688 9018.31 8948.71 12720 9019.30 8949.70 12757 9021.26 8951.67 12791 9023.45 8953.85 90 24 S 53.51 W 3.09 88 49 S 52.75 W 5.45 87 37 S 52.96 W 3.79 86 22 S 51.68 W 4.78 86 16 S 51.59 W .39 6655.82S 3417.47W 6674.03 6675.03S 3443.08W 6706.04 6694.43S 3468.70W 6738.18 6717.33S 3498.34W 6775.61 6738.39S 3524.95W 6809.51 12819 9025.16 8955.56 12851 9027.12 8957.52 12882 9029.09 8959.49 12913 9031.20 8961.60 12946 9033.06 8963.46 86 32 S 52.05 W 1.94 86 27 S 51.45 W 1.88 86 12 S 51.64 W 1.02 86 10 S 51.68 W .15 87 9 S 50.42 W 4.98 M CROF LMED 6755.28S 3546.43W 6836.82 6775.12S 3571.60W 6868.84 6794.24S 3595.67W 6899.55 6813.89S 3620.52W 6931.21 6833.99S 3645.39W 6963.14 SPE~' ,-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 2 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 MWD SURVEY JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH COURS INCLN DG MN COURSE DLS TOTAL DIRECTION RECTANGULAR COORDINATES DEGREES DG/100 NORTH/SOUTH EAST/WEST VERT. SECT. 12977 9034.41 8964.81 13005 9035.22 8965.62 13036 9035.78 8966.18 13068 9036.25 8966.65 13099 9036.77 8967.17 87 54 S 51.74 W 4.83 6853.64S 3669.71W 88 46 S 52.40 W 3.89 6870.86S 3691.82W 89 10 S 52.30 W 1.32 6889.93S 3716.53W 89 8 S 51.49 W 2.55 6909.55S 3741.55W 88 58 S 51.75 W .97 6929.14S 3766.28W 6994.37 7022.38 7053.57 7085.35 7116.87 13129 9037.32 8967.72 13160 9037.92 8968.33 13192 9038.54 8968.94 13222 9039.10 8969.50 13252 9039.67 8970.07 88 53 S 52.86 W 3.78 6947.17S 3789o61W 88 53 S 53.05 W .61 6966.04S 3814.61W 88 53 S 52.91 W .43 6985.28S 3840.14W 88 56 S 52.70 W .74 7003.07S 3863.57W 88 55 S 53.04 W 1.11 7021.56S 3888.00W 7146.34 7177.66 7209.62 7239.03 7269.66 13283 9040.25 8970.65 13315 9040.79 8971.19 13346 9041.25 8971.66 13378 9041.69 8972.09 13408 9042.09 8972.49 88 55 S 53.20 W .52 7040.17S 3912.80W 89 6 S 53.05 W .77 7058.96S 3937.84W 89 10 S 53.04 W .19 7077.54S 3962.55W 89 17 S 53.77 W 2.31 7096.65S 3988.28W 89 10 S 53.70 W .46 7114.53S 4012.66W 7300.66 7331.96 7362.88 7394.93 7425.16 13439 9042.54 8972.94 13469 9042.94 8973.34 13501 9043.37 8973.77 13531 9043.74 8974.'14 13564 9044.09 8974.50 89 11 S 53.78 W .27 7133.09S 4037.96W 89 13 S 53.52 W .89 7150.60S 4061.75W 89 15 S 53.35 W .54 7169.83S 4087.67W 89 20 S 54.29 W 3.10 7187.79S 4112.24W 89 22 S 53.46 W 2.57 7206.82S 4138.30W 7456.53 7486.08 7518.35 7548.78 7581.05 13593 9044.45 8974.85 13625 9044.98 8975.38 13657 9045.58 8975.98 13690 9046.21 8976.61 13723 9046.83 8977.23 89 11 S 53.18 W 1.15 7224.13S 4161.55W 88 56 S 53.09 W .82 7243.53S 4187.41W 88 55 S 53.82 W 2.26 7262.78S 4213.39W 88 51 S 53.80 W .19 7281.92S 4239.55W 88 56 S 53.37 W 1.34 7301.34S 4265.87W 7610.03 7642.36 7674.69 7707.10 7739.81 13749 9047.30 8977.70 13782 9047.85 8978.25 13810 9048.28 8978.68 13828 9048.50 8978.90 13857 9048.89 8979.29 89 2 S 53.33 W .37 7317.27S 4287.28W 89 1 S 53.92 W 1.81 7336.62S 4313.56W 89 15 S 53.67 W 1.21 7353.53S 4336.65W 89 19 S 54.50 W 4.66 7364.01S 4351.12W 89 8 S 52.80 W 5.92 7381.12S 4374.38W 7766.50 7799.13 7827.75 7845.62 7874.49 13886 9049.33 8979.73 13917 9049.77 8980.17 13952 9050.23 8980.63 13982 9050.69 8981.09 14013 9051.21 8981.61 89 6 S 52.20 W 2.10 7398.52S 4397.06W 89 13 S 52.50 W 1.05 7417.29S 4421.38W 89 17 S 53.60 W 3.12 7438.49S 4449.57W 88 58 S 53.60 W 1.01 7456.64S 4474.19W 89 4 S 53.70 W .46 7474.97S 4499.09W 7903.07 7933.77 7969.04 7999.63 8030.55 SPE~ '~' Y-SUN DRILLING SERVICES ~ ANCHORAGE ALASKA PAGE 3 SI~RED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 MWD SURVEY JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 14044 9051.73 8982.13 88 58 S 53.40 W 1.04 14075 9052.26 8982.66 89 4 S 52.70 W 2.26 14106 9052.75 8983.15 89 6 S 52.90 W .65 14137 9053.22 8983.62 89 8 S 53.80 W 2.93 14168 9053.63 8984.03 89 20 S 53.00 W 2.66 7493.08S 4523.61W 8061.02 7511.86S 4548.57W 8092.25 7530.61S 4573.28W 8123.27 7548.97S 4597.95W 8154.02 7567.50S 4622.90W 8185.09 14182 9053.77 8984.17 89 30 S 53.90 W 6.43 14222 9054.11 8984.51 89 30 S 53.90 W .00 7575.96S 4634.32W 8199.31 7599.16S 4666.14W 8238.69 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 8917.41 FEET AT SOUTH 31 DEG. 33 MIN. WEST AT MD = 14222 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 234.05 DEG. TIED INTO 12-35PB1 AT 11887.89' KICK OFF POINT AT 11906.65' INTERPOLATED DEPTH 14222' SPE~' '~-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 4 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 11887 8924.24 8854.64 12887 9029.47 8959.87 13887 9049.35 8979.75 14222 9054.11 8984.51 6198.00 S 2819.59 W 2963.65 6797.75 S 3600.11 W 3858.42 894.77 7399.50 S 4398.31 W 4838.54 980.12 7599.16 S 4666.14 W 5167.89 329.36 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPE~- "-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 5 SHARED SERVICES DRILLING PBU/12-35 500292258800 NORTH SLOPE BOROUGH COMPUTATION DATE: 11/ 3/95 DATE OF SURVEY: 102095 JOB NUMBER: AK-MM-951052 KELLY BUSHING ELEV. = 69.60 FT. OPERATOR: ARCO ALASKA INC INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA MEASD VERTICAL VERTICAL DEPTH DEPTH DEPTH TOTAL RECTANGULAR COORDINATES MD-TVD VERTICAL NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 11887 8924.24 11993 8969.60 14222 9054.11 8854.64 6198.00 S 2819.59 W 2963.65 8900.00 6256.04 S 2894.90 W 3023.78 60.13 8984.51 7599.16 S 4666.14 W 5167.89 2144.12 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS LARRY GRANT Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHORAGE AK, 99501. Dear Sir/Madam, References ARCO DS 12-35 PH PRUDHOE BAY NORTH SLOPE, AK Enclosed, please find the data as described below: Tapes/Diskettes: 1 LDWG TAPE+LIS Date: RE: 19 October 1995 Transmittal of Data ECC #: 6499.00 Sent by: HAND CARRY Data: OH-LDWG Run ~ 1 Please sign and return to: Attn. Rodney D. Paulson Atlas Wireline Services 5600 B Street Suite 201 ._ Anchorage, AK 99518 Or FAX~o (907~~.~-7803 Received ,~~~-~---z// Date : LARRY GRANT Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHORAGE AK, 99501. Date: 17 October 1995 RE: Transmittal of Data ECC #: 6499.00 Sent by: HAND CARRY Data: OH-LDWG Dear Sir/Madam, Reference: ARCO DS 12-35 PH PRUDHOE BAY NORTH SLOPE, AK Enclosed, please find the data as described below: Prints/Films: Prints/Films: DIFL/GR FINAL BL+RF ZDL/GR FINAL BL+RF BHC/AC/GR FINL BL+RF BH PRO FINAL BL+RF SSVD FINAL BL+RF Run # 1 Run # 1 Run # 1 Run # 1 Run # 1 Please sign and return to: Attn. Rodney D. Paulson Atlas Wireline Services 5600 B Street Suite 201 Anchorage, AK 99518 Or FAX to (907) 563-7803 Received by: OCT 2 ,'1995 Alaska 0il & (.-ids b.,,,.~, c, uulrnission Anchorage Date: Gyrodata Incorporated P.O. Box 79389 Houston, Texas 77279 713/461-3146 Fax: 713/461-0920 October 11, 1995 B.P. Exploration Petrotechnical Data Center, MB 3-3 Sharmaine Copeland P.O. Box 196612 Anchorage, AK 99519-6612 Re: DRILLSITE 12, WELL #12-35, PRUDEHOE BAY FIELD E~O.A. Enclosed please find one (1) original (3) copy and (1) disk of the completed survey of Well #12-35 We would like to take this opportunity to thank you for using Gyrodaata and we look forward to serving you in the future. Robert J. Shoup Operations Manager RS/gr Serving the Worldwide Energy Industry with Precision Survey Instrumentation M CROF LMED Date, PRUDHOE BAY FIELD E.O.A. Gyro Mu/t/shot Survey in ,~dr~lnin~ AP/NO. 500292258800 Job nUmber:AK0 95 298 SR298. DOC gyro/data CONTENTS JOB NUMBER :AK0995G298 1. DISCUSSION, SURVEY CERTIFICATION SHEET · 2. SURVEY DETAILS 3. OUTRUN SURVEY LISTING 4. QUALITY CONTROL 5. EQUIPMENT AND CHRONOLOGICAL REPORT SR298.DOC gyro/data 1. DISCUSSION , SURVEY CERTIFICATION SHEET SR298.DOC gyro/data DISCUSSION JOB NUMBER: AK0995G298 Tool 080 was run in well 12-35 on Atlas 7/32" Wireline inside 5 inch drillpipe. The gyro had to be pumped all the way to bottom and therefor no inrun data was collected. There was a 25 ft. wireline correction added to the survey depths. Otherwise the job was run without any problems. SR298.DOC gyro/data SURVEY CERTIFICATION SHEET JOB NUMBER: AK0995G298 The data for this survey and the calculations for this survey were obtained and performed by me according to standards and procedures as set forth by Gyrodata Limited, true and correct to the best of my knowledge. TOM STODDARD OPERATIONS ENGINEER The data and calculations for this survey have been checked by me and conform to the standards and procedures as set forth by Gyrodata Limited. This report represents a directional survey of this well based on the original data obtained at the wellsite. Checked by :- ROB SHOUP OPERATIONS MANAGER SR298.DOC gyro/data 2. SURVEY DETAILS SR298.DOC gyro/data SURVEY DETAILS JOB NUMBER: AK0995G298 CLIENT: B.P. EXPLORATION RIG: NABORS 18E LOCATION: Drill Site 12 WELL: 12-35 LATITUDE: 70.22 N LONGITUDE: SURVEY DATE: SURVEY TYPE : 29 September, 1995 'MULTISHOT IN 5" drillpipe DEPTH REFERENCE: MAX. SURVEY DEPTH: ROTARY TABLE ELEVATION 71.1 feet 6265' SURVEY TIED ONTO: SURVEY INTERVAL· N/A 100' and 30' UTM CO-ORDINATES: TARGET DIRECTION: 234.05 GRID CORRECTION: CALCULATION METHOD: MINIMUM CURVATURE SURVEYOR: STODDARD SR298.DOC' gyro/data 3. OUTRUN SURVEY LISTING SR298.DOC A Gyrodat a D i re c't i on a 1 Survey for B.P. EXPLORATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, E.O.A., API 500292258800 Job Number: AK0995G298 Run Date: 29-Sep-95 09:49:45 Surveyor: TOM STODDARD Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.220000 deg. N Sub-sea Correction from Vertical Reference: 71.1 ft. Azimuth Correction: Gyro: Bearings are Relative to True North Proposed Well Direction: 234.050 deg Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference A Gyroda t a D i re c t i o na i Survey B.P. EXPLORATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, Job Number: AK0995G298 E.O.A., API 500292258800 MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. 0.0 0.00 0.00 0.0 0.0 -71.1 0.00 0.0 0.0 0 - 6265 FT. GYRO SURVEY RUN IN 5" DRILLPIPE. MEASURED DEPTHS ARE REFERENCED TO THE NABORS 18E R.K.B. AT 71.1 FT. ABOVE SEA L Page 1 HORIZONTAL COORDINATES feet 0.00 N 0.00 E 125.0 .14 34.81 125.0 -.1 53.9 .11 .1 34.8 225.0 .10 39.67 225.0 -.3 153.9 .04 .4 36.0 325.0 .06 154.13 325.0 -.4 253.9 .14 .4 43.3 425.0 .21 86.05 425.0- -.6 353.9 .19 .6 61.3 525.0 .61 84.29 525.0 -1.2 453.9 .40 1.2 74.5 625.0 .95 77.22 625.0 -2.4 553.9 .35 2.6 77.3 725.0 1.29 76.97 725.0 -4.2 653.9 .34 4.6 77.2 825.0 1.06 80.97 824.9 -6.0 753.8 .24 6.6 77.7 925.0 .19 128.40 924.9 -6.9 853.8 .94 7.6 79.1 1025.0 1.05 244.82 1024.9 -6.1 953.8 1.15 6.9 82.0 1125.0 1.43 255.88 1124.9 -4.0 1053.8 .45 4.8 86.9 1225.0 1.90 255.38 1224.9 -1.3 1153.8 .47 2.0 103.5 1325.0 2.65 246.55 1324.8 2.5 1253.7 .82 2.5 224.8 1425.0 2.57 244.33 1424.7 7.0 1353.6 .13 7.0 238.1 1525.0 2.75 242.77 1524.6 11.5 1453.5 .19 11.6 240.3 1625.0 3.34 230.47 1624.4 16.8 1553.3 .88 16.9 238.9 1725.0 3.96 218.67 1724.2 23.1 1653.1 .97 23.1 234.9 1825.0 5.00 210.41 1823.9 30.4 1752.8 1.22 30.5 229.7 1925.0 6.85 205.88 1923.4 39.6 1852.3 1.91 40.2 224.2 2025.0 7.78 202.66 2022.6 50.7 1951.5 1.02 52.3 219.4 .12 N .08 E .28 N .21 E .30 N .29 E .27 N .49 E .33 N 1.20 E .57'N 2.53 E 1.01 N 4.44 E 1.40 N 6.45 E 1.45 N 7.49 E .95 N 6.79 E .26 N 4.74 m~_ .46 S 1.93 1.80 S 1.79 W 3.69 S 5.93 W 5.76 S 10.08 W 8.71 S 14.46 W 13.26 S 18.87 W 19.71 S 23.23 W 28.83 S 28.03 W 40.44 S 33.24 W A Gyroda t a D i r e c t i ona i Survey B.P. EXPLORATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, Job Number: AK0995G298 E.O.A., API 500292258800 Page MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet '2125.0 8.86 202.09 2121.5 2225.0 10.81 199.70 2220.1 2325.0 12.20 199.27 2318.0 2425.0 13.65 199.50 2415.5 2525.0 15.46 197.96 2512.3 63 77 93 112 132 .0 .2 .7 .1 .5 2050.4 2149.0 2246.9 2344.4 2441.2 1.08 66.3 215.8 1.99 82.9 212.7 1.40 102.4 210.1 1.45 124.5 208.2 1.85 149.3 206.6 53.82 S 38.74 W 69.77 S 44.80 W 88.58 S 51.45 '~ 109.68 S 58.87 ~, 133.49 S 66.92 W 2625.0 17.95 199.21 2608.1 2725.0 20.71 199.91- 2702.4 2825.0 22.68 200.21 2795.3 2925.0 24.92 201.75 2886.8 3025.0 27.08 203.28 2976.7 156 183 213 247 285 .0 .3 .9 .7 .1 2537.0 2631.3 2724.2 2815.7 2905.6 2.51 177.8 205.3 2.77 210.8 204.4 1.98 247.7 203.8 2.32 288.0 203.4 2.26 331.8 203.3 160.73 S 76.11 W 191.91 S 87.20 W 226.63 S 99.88 W 264.30 S 114.35 W 304.79 S 131.16 W 3125.0 29.46 203.12 3064.8 3225.0 32.59 202.86 3150.4 3325.0 33.90 203.39 3234.1 3425.0 35.34 205.34 3316.4 3525.0 36.54 205.03 3397.3 3625.0 37.97 207.50 3476.9 3725.0 39.43 203.98 3555.0 3825.0 41.55 204.10 3631.0 3925.0 43.80 203.24 3704.5 4025.0 46.15 202.02 3775.3 325 369 416 466 517 571 626 682 741 801 .8 .9 .9 .3 .7 .3 .3 .5 .0 .3 2993.7 3079.3 3163.0 3245.3 3326.2 3405.8 3483.9 3559.9 3633.4 3704.2 2.38 379.2 203.3 3 . 13 430 . 7 203 · 2 1.35 485.5 203.2 1.81 542.3 203 .3 1.22 601.0 203.5 2.07 661.4 203.8 2.64 723.9 203.9 2.13 788.8 204.0 2.32 856.6 203.9 2.50 927.3 203.8 348.31 S 149.81 W 395.75 S 169.93 W 446.17 S 191.47 W 497.91 S 214.92 W 551.03 S 239.90 W 605.30 S 266.70 ~ 661.61 S 293.82 720.90 S 320.27 W 782.99 S 347.47 W 848.23 S 374.65 W 4125.0 48.14 201.42 3843.3 4225.0 49.52 201.79 3909.1 4325.0 49.77 200.08 3973.9 4425.0 50.80 200.22 4037.7 4525.0 51.08 199.52 4100.8 863.2 926.7 990.6 1054.4 1118.6 3772.2 3838.0 3902.8 3966.6 4029.7 2.04 1000.5 203.7 1.41 1075.8 203.5 1.33 1151.9 203.4 1.04 1228.7 203.2 .60 1306.2 203.0 916.33 S 986.32 S 1057.49 S 1129.71 S 1202.73 S 401.77 W 429.49 W 456.72 W 483.21 W 509.60 W A Gyroda t a D i r e c t i o n a i S u rv e y B.P. EXPLORATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, Job Number: AK0995G298 E.O.A., API 500292258800 Page MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 4625.0 50.98 199.36 4163.6 4725.0 50.82 199.76 4226.7 4825.0 50.73 200.06 4289.9 4925.0 50.30 198.70 4353.5 5025.0 48.93 199.95 4418.3 1182 1246 1310 1374 1436 .6 .6 .7 .2 .8 4092.5 4155.6 4218.8 4282.4 4347.2 .16 1383.9 202.8 .35 1461.3 202.6 .25 1538.7 202.5 1.13 1615.8 202.3 1.67 1691.9 202.2 1276.05 S 535.48 W 1349.18 S 561.46 ~ 1422.02 S 587.84 1494.82 S 613.46 W 1566.70 S 638.65 W 5125.0 49.01 200.20 4484.0 5225.0 49.16 201.09 4549.5 5325.0 50.33 201.55 4614.1 5425.0 49.99 201~56 4678.2 5525.0 51.36 201.99 4741.5 1499 1562 1626 1691 1756 .3 .4 .6 .4 .8 4412.9 4478.4 4543.0 4607.1 4670.4 .21 1767.3 202.1 .69 1842.8 202.0 1.23 1919.1 202.0 · 35 1995.9 202.0 1.41 2073.2 202.0 1637.55 S 664.55 W 1708.26 S 691.19 W 1779.36 S 718.93 W 1850.77 S 747.14 W 1922.60 S 775.84 W 5625 . 0 51 . 19 200 . 86 4804 . 1 5725 . 0 50 · 76 201.83 4867.0 5755 . 0 50 . 94 202 . 14 4886 · 0 5785.0 51 · 26 202.26 4904.8 5815.0 50 · 99 204.01 4923.7 1822 1887 1907 1927 1947 .5 .9 .6 .4 .5 4733.0 4795.9 4814.9 4833.7 4852.6 .90 2151.3 202.0 .87 2228.9 201.9 1.00 2252.2 201.9 1.10 2275.5 201.9 4.65 2298.9 202.0 1995.22 S 804.35 W 2067.58 S 832.63 W 2089.15 S 841.34 W 2110.77 S 850.16 W 2132.25 S 859.33 W 5845.0 50.79 203.08 4942.6 5875.0 50.55 202.37 4961.6 5905.0 50.92 202.68 4980.6 5935.0 50.82 202.38 4999.5 5965.0 51.04 202.62 5018.4 1967 1987 2007 2027 2046 .5 .3 .1 .0 .8 4871.5 4890.5 4909.5 4928.4 4947.3 2.51 2322.2 202.0 2.00 2345.4 202.0 1.47 2368.6 202.0 .85 2391.9 202.0 .94 2415.2 202.0 2153.58 S 868.63 ~- 2174.99 S 877.60 w 2196.44 S 886.49 W 2217.94 S 895.41 W 2239.46 S 904.32 W 5995.0 51.07 202.79 5037.3 6025.0 51.17 202.75 5056.1 6055.0 51.28 202.67 5074.9 6085.0 51.39 203.60 5093.6 6115.0 51.39 203.31 5112.4 2066 2086 2106 2126 2147 .7 .7 .7 .8 .0 4966.2 4985.0 5003.8 5022.5 5041.3 .45 2438.5 202.0 .35 2461.8 202.0 .42 2485.2 202.0 2.44 2508.6 202.0 .76 2532.1 202.0 2260.98 S 913.33 W 2282.52 S 922.37 W 2304.09 S 931.40 W 2325.63 S 940.60 W 2347.14 S 949.93 W A Gyroda t a D i re c t i ona i Survey B.P. EXPLORATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, Job Number: AK0995G298 E.O.A., API 500292258800 MEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SUBSEA DOGLEG CLOSURE SECTION DEPTH SEVERITY DIST. AZIMUTH feet feet deg./ feet deg. 100 ft. 6145.0 51.65 203.76 5131.0 6175.0 51.87 203.43 5149.6 6205.0 51.97 202.95 5168.1 6235.0 51.40 202.76 5186.7 6265.0 51.40 202.87 5205.4 2167.2 5059.9 1.47 2555.6 202.0 2187.5 5078.5 1.13 2579.1 202.1 2207.8 5097.0 1.31 2602.7 202.1 2227.9 5115.6 1.97 2626.3 202.1 2247.9 5134.3 .28 2649.7 202.1 Final Station Closure: Distance: 2649.70 ft Az: 202.09 deg. Page 4 HORIZONTAL COORDINATES feet 2368.67 S 2390.26 S 2411.97 S 2433.66 S 2455.27 S 959.31 W 968.74 W 978.04 '~' 987.18 ,, 996.27 W A Gyroda t a D i r e c t i ona I Survey for B.P. EXPLORATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, E.O.A., API 500292258800 Job Number: AK0995G298SS Run Date: 29-Sep-95 09:49:45 Surveyor: TOM STODDARD Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.220000 deg. N Sub-sea Correction from Vertical Reference: 71.1 ft. Azimuth Correction: Gyro: Bearings are Relative to True North Proposed Well Direction: 234.050 deg Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference A Gyroda t a D i r e c t i o na i Survey B.P. EXPLORATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, Job Number: AK0995G298SS E.O.A., API 500292258800 SUBSEA I N C L AZIMUTH VERTICAL VERTICAL DOGLEG DEPTH DEPTH SECTION SEVERITY feet deg. deg. feet feet deg./ 100 ft. CLOSURE DIST. AZIMUTH feet deg. -71.1 0.00 0.00 0.0 0.0 0.00 0.0 0.0 0 - 6265 FT. GYRO SURVEY RUN IN 5" DRILLPIPE. MEASURED DEPTHS ARE REFERENCED TO THE NABORS 18E R.K.B. AT 71.1 FT. Page HORIZONTAL COORDINATES feet 0.00 N 0.00 E ABOVE SEA L 100.0 .12 37.05 171.1 -.2 .08 200.0 .08 92.43 271.1 -.4 .08 300.0 .13 122.75 371.1 -.5 .16 400.0 .39 85.24 471.1 -.8 .29 500.0 .77 81.03 571.1 -1.7 .38 600.0 1.11 77.10 671.1 -3.2 .35 700.0 1.18 78.82 771.1 -5.0 .30 800.0 .66 102.86 871.1 -6.4 .57 900.0 .59 182.14 971.1 -6.5 1.04 1000.0 1.23 249.93 1071.1 -5.1 .82 1100.0 1.65 255.65 1171.1 -2.7 1200.0 2.24 251.29 1271.1 .5 1300.0 2.61 245.52 1371.1 4.6 1400.0 2.65 243.60 1471.1 9.1 1500.0 3.02 237.04 1571.1 14.0 1600.0 3.63 224.95 1671.1 19.7 1700.0 4.45 214.79 1771.1 26.5 1800.0 5.87 208.26 1871.1 34.8 1900.0 7.29 204.33 1971.1 44.9 2000.0 8.31 202.38 2071.1 56.7 .46 .63 .50 .16 .51 1. 1. 1. 1. 92 09 54 48 O5 .4 35.4 .4 39.4 .6 51.6 1.2 67.4 2.6 75.8 4.6 77.3 6.6 77.5 7.6 78.3 6.9 80.4 4.8 84.3 2.0 94.6 2.5 159.7 7.0 231.0 11.6 239.1 16.9 239.6 23.1 237.0 30.5 232.4 40.2 227.1 52.3 221.9 66.3 217.6 .20 N .14 E .29 N .24 E .29 N .38 E .30 N .82 E .44 N 1.81 E .77 N 3.41 E 1.19 N 5.36 E 1.42 N 6.93 E 1.22 N 7.16 E .63 N 5.84 E .35 S 3.44 E 1.08 S 1.87 W 2.68 S 3.71 W 4.65 S 7.86 W 7.14 S 12.12 W 10.84 S 16.52 W 16.30 S 20.92 W 24.04 S 25.51 W 34.42 S 30.54 W 47.00 S 35.94 W A Gyro da t a D i r e c t i on a i B.P. EXPLOP~ATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, Job Number: AK0995G298SS E.O.A. , API 500292258800 SUBSEA I N C L AZIMUTH VERTICAL VERTICAL DEPTH DEPTH SECTION feet deg. deg. feet feet DOGLEG SEVERITY deg. / 100 ft. CLOSURE DIST. AZIMUTH feet deg. 2100.0 9.84 200.89 2171.1 2200.0 11.53 199.48 2271.1 2300.0 12.99 199.39 2371.1 2400.0 14.69 198.61 2471.1 2500.0 16.99 198.72 2571.1 70.1 85.8 103 .7 123.8 146.9 . 1. 1. 1. 2. 54 68 43 68 26 82.9 214.2 102.4 211.4 124.5 209.1 149.3 207.3 177.8 205.8 2600.0 19.79 199.68 2671.1 2700.0 22.17 200.13 2771.1 2800.0 24.54 201.48 2871.1 2900.0 26.95 203.19 2971.1 3000.0 29.69 203.10 3071.1 174.2 205.9 241.9 282.8 329.0 2.68 2.18 2.26 2.26 2.43 210.8 204.7 247.7 204.0 288.0 203.5 331.8 203.3 430.7 203.3 3100.0 32.91 202.99 3171.1 3200.0 34.55 204.27 3271.1 3300.0 36.16 205.13 3371.1 3400.0 37.87 207.32 3471.1 3500.0 39.88 204.01 3571.1 381.5 439.1 501.0 567.3 638.2 2.69 1.56 1.41 2.00 2.53 485.5 203.2 542.3 203.3 601.0 203.5 661.4 203.8 788.8 203.9 3600.0. 42.78 203.63 3671.1 3700.0 46.02 202.09 3771.1 3800.0 48.72 201.58 3871.1 3900.0 49.76 200.15 3971.1 4000.0 50.95 199.85 4071.1 4100.0 50.97 199.40 4171.1 4200.0 50.76 199.97 4271.1 4300.0 49.93 199.04 4371.1 4400.0 49.00 200.15 4471.1 4500.0 49.55 201.24 4571.1 714.4 797.7 890.1 987.8 1088.4 1190.2 1291.6 1391.2 1487.1 1583.9 . 2. 1. 1. 23 49 77 33 81 18 28 28 49 87 856.6 203.9 927.3 203.8 1075.8 203.6 1151.9 203.4 1306.2 203.1 1461.3 202.7 1538.7 202.5 1691.9 202.3 1767.3 202.1 1919.1 202.0 Survey Page HORIZONTAL COORDINATES feet 61.85 S 41.79 W 79.57 S 48.26 W 100.06 S 55.49 W 123.35 S 63.50 W 150.21 S 72.56 W 181.56 S 83.52 W 217.58 S 96.58 W 257.83 S 111.87 W 302.27 S 130.11 W 351.83 S 151.30 W 408.20 S 175.25 W 469.44 S 202.02 W 533.82 S 231.81 W 601.33 S 264.74 W 674.18 S 299.43 W 754.75 S 844.38 S 945.92 S 1054.46 S 1168.36 S 1284.69 S 1400.32 S 1514.31 S 1623.65 S 1732.06 S 335.10 W ~--~ 373.05 W 413.49 W 455.56 W 497.18 W 538.55 W 579.98 W 620.29 W 659.47 W 700.47 W A Gyr oda t a D i r e c t i o n a B.P. EXPLORATION WELL: DRILLSITE 12, 12-35 Location: NABORS 18E, PRUDHOE BAY, Job Number: AK0995G298SS E.O.A., API 500292258800 1 Survey Page SUBSEA I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 4600.0 50.02 201.56 4671.1 4700.0 51.28 201.46 4771.1 4800.0 50.80 201.90 4871.1 4900.0 50.74 202.52 4971.1 5000.0 51.26 202.69 5071.1 1684.3 .44 199519 202.0 1787.8. 1.17 2151.3 202.0 1892.1 .90 2252.2 201.9 1997.2 1.73 2368.6 202.0 2102.6 .40 2485.2 202.0 1842.91 S 1956.93 S 2072.19 S 2185.73 S 2299.73 S 744.04 W 789.32 W 834.49 W ~'~ 882.05 W 929.57 W 5100.0 51.88 202.92 5171.1 5134.3 51.40 202.87 5205.4 2211.0 1.41 2626.3 202.1 2247.9 .28 2649.7 202.1 2415.47 S 2455.27 S 979.51 W 996.27 W Final Station Closure: Distance: 2649.70 ft Az: 202.09 deg. gyro/data QUALITY CONTROL REPORT JOB NUMBER: AK0995G298 TOOL NUMBER: 080 MAXIMUM GYRO TEMPERATURE: 75.69C MAXIMUM AMBIENT TEMPERATURE: 46.7 C MAXIMUM INCLINATION: 51.89 AVERAGE AZIMUTH: 202.08 WIRELINE REZERO VALUE: 25 ft. (corrected back to zero) REZERO ERROR / K: 3.99ff./1000 'CALIBRATION USED FOR FIELD SURVEY: 08/21/95 CALIBRATION USED FOR FINAL SURVEY: pRE JOB MASS BALANCE OFFSET CHECK' 1224 .12 POST JOB MASS BALANCE OFFSET CHECKt: CONDITION OF SHOCK WATCHES .03 USED .1 UPON ARRIVAL AT RIG: OK UPON COMPLETION OF SURVEY: OK UPON RETURN TO ATLAS OK BOTTOM LINE COMPARISONS M.D. INC AZIMUTH TVD NORTHING EASTING FIELD SURVEY 6265.0 51.40 202.87 5205.4 2455.3 S 996.3 W FINAL SURVEY 6265.0 51.40 202.87 5205.4 2455.27 S 996.27 W SR298.DOC gyro/data FUNCTION TEST JOB NUMBER: AK0995G298 5 Survey stations were collected at the measured depth shown below. The tables show the repeatability of the gyro tool in both inclination and azimuth at one measured depth. INCLINATION M.D. ff 1 2 3 4 5 4000 46.16 46.16 46.16 46.16 46.16 AZIMUTH M.D. ft 1 2 3 4 5 4000 201.31 201.71 201.72 201.77 201.83 SR298.DOC gyro/data 5. EQUIPMENT AND CHRONOLOGICAL REPORT SR298.DOC gyro/data EQUIPMENT REPORT JOB NUMBER: AK0995G298 DOWNHOLE ELECTRONICS SURFACE ELECTRONICS PRIMARY TOOL No. 080 GYRO SECTION A0065 DATA SECTION C0031 POWER SECTION C0006 COMPUTER POWER SUPPLY PRINTER INTERFACE A0153 A0085 A0029 A0035 BACKUP TOOL No. 713 GYRO SECTION A0051 DATA SECTION C0023 POWER SECTION C0022 COMPUTER POWER SUPPLY PRINTER INTERFACE A0213 A0055 A0079 A0071 WIRELINE COMPANY: ' ATLAS WIRELINE CABLE SIZE: 5/16" RUNNING GEAR 2 1/4" SYSTEM TOTAL LENGTH OF TOOL: 17.5 feet 'MAXIMUM O.D.: ,. 2 1/4 INCHES TOTAL WEIGHT OF TOOL: 240Lbs SR298.DOC gyro/data CHRONOLOGICAL REPORT JOB NUMBER: AK0995G298 9/29/95 0600 0730 0800 0949 1345 1445 1550 1700 LEAVE ATLAS ARRIVED AT LOCATION SPOT UNIT, MAKE UP TOOL RUNNING IN HOLE 7830' SURVEYING OUT LAY DOWN AND BREAK DOWN TOOL PROCESS SURVEY. RETURN TO ATLAS. J SR298.DOC MEMORANDUM State of Alaska Alaslra Oil and Gas Conservation Commission TO: David ~'~ DATE: Chairmarf' September 28, 1995 THRU: Blair Wondzell, ~~ FILE NO: P. I. Supervisor FROM: John Spaulding,¢'~_ SUBJECT: Petroleum Insp.? - AENLI2CD.doc BOPE Test Nabors 18E ARCO PBU 12-35 PTD d--~ ~ \"'Z-D Prudho~ ~il Po;T~ Thursday September 28, 1995: I witnessed the BOPE Test on Nabors rig 18E at ARCO's PBU well 12-35. The AOGCC BOPE test is attached for reference. The test went quite well with no failures observed. The rig is well laid out and appears to be in very good shape._ Summary:. I witnessed the BOPE test on Nabors rig 18E, no failures, 3 hours test time. Attachments: AENLI2CD.xls STATE OF ALASKA OIL AND GAS CONSERVATION COMMISSION BOPE Test Report OPERATION: Drlg: X Drlg Contractor: Operator: Well Name: Casing Size: 10 3/4" Test: Initial X Workover: DATE: Nabors Rig No. 18E PTD # 95-130 Rig Ph.# ARCO Rep.: John Rail DS12-35 Rig Rep.: Don Dubois Set @ 3543' Location: Sec. 18 T. 1ON R. 15E Meridian Umiat Weekly Other 9/28/95 659-4608 TEST DATA MISC. INSPECTIONS: Location Gen.: ok Housekeeping: ok (Gen) PTD On Location yes Standing Order Posted yes Well Sign yes Drl. Rig ok Hazard Sec. ok FLOOR SAFETY VALVES: Upper Kelly / IBOP Lower Kelly / IBOP Ball Type Inside BOP Test Quart. Pressure P/F 1 500/5, 000 P 500/5, 000 P 500/5, 000 P 500/5, 000 P BOP STACK: Annular Preventer Pipe Rams Lower Pipe Rams Blind Rams Choke Ln. Valves HCR Valves Kill Line Valves Check Valve Quan. Test Press. P/F 300/3,000 :~ I 500/5, 000 I 500/5,000 1 500/5,000 1 500/5, 000 2 500/5,000 1 500/5,000 N/A MUD SYSTEM: Visual Alarm Trip Tank OK OK Pit Level Indicators OK OK Flow Indicator OK OK Meth Gas Detector OK OK H2S Gas Detector OK OK CHOKE MANIFOLD: No. Valves No. Flanges Manual Chokes Hydraulic Chokes 16 Test Pressure P/F 500/5,000 P 42 500/5, 000 1 Functioned Functioned ACCUMULATOR SYSTEM: System Pressure Pressure After Closure 200 psi Attained After Closure 0 System Pressure Attained 2 Blind Switch Covers: Master: Nitgn. Btl's: 2,950 I P 1,350 P minutes 34 minutes 9 X' Remote: 8 @ 2100 AVERAGE Psig. sec. sec. X Number of Failures: 0 ,Test Time: 3.0 Hours. Number of valves tested 22 Repair or Replacement of Failed Equipment will be made within 0 days. Notify the Inspector and follow with Written or Faxed verification to the AOGCC Commission Office at: Fax No. 276-7542 Inspector North Slope Pager No. 659-3607 or 3687 If your call is not returned by the inspector within 12 hours please contact the P. I. Supervisor at 279-1433 REMARKS: Excellent test Distribution: orig-Well File c - Oper./Rig c- Database c - Trip Rpt File c- Inspector STATE WITNESS REQUIRED? YES X NO 24 HOUR NOTICE GIVEN YES X NO Waived By: Witnessed By: John H. Spaulding FI-021L (Rev. 12/94) AENLI2CD.XLS MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO' David John_j~,~n, DATE: Chairmafi ~ ' September 24, 1995 THRU: FILE NO: Blair Wondzell, P. I. Supervisor FROM' Bobby Fosfer,'"~)~ SUBJECT: Petroleum Inspector EENIIXCD.doc Diverter Inspection - Nabors 18E ARCO - PBU - DS12-35 PTD # 95-0130 Prudhoe Bay Field Sunday,. September 2.4,. 1995: I traveled this date to ARCO's PBU DS 12-35 and witnessed the diverter test. As the attached AOGCC Diverter Inspection Report shows the system was installed in compliance with AOGCC regulations and all components operated properly. The location was clear and there was good access to all areas of the rig and all related drilling equipment was stored properly. The rig was clean and all equipment seemed to be in good working order. Summary: I witnessed the Diverter test on Nabors 18E drilling ARCO's DS 12-35. Attachment: EENIIXCD.XLS STATE OF ALASKA {"' ALASKA OIL AND GAS CONSERVATION COMMISSION Diverter Systems Inspection Report Drlg Contractor: NABORS Operator: ARCO PBU Well Name: DS12-35 Location: Sec. 18 T. 10N R. Operation: Development Rig No. 18E PTD # Oper. Rep.: Rig Rep.: 15E Meridian UM Date: 9~24~95 X Exploratory: 95-0130 Rig Ph. # 659 -4608 JOHN RAWLS BILL BIXBY TEST DATA.: MISC. INSPECTIONS: Location Gen.: OK Well Sign: OK , , Housekeeping: OK (Gen.) Drlg. Rig: 'OK Reserve Pit: N I A Flare Pit: N i A DIVERTER SYSTEM INSPECTION: Diverter Size: Divert Valve(s) Full Opening: Valve(s) Auto & Simultaneous: Vent Line(s) Size: Vent Line(s) Length: Line(s) Bifurcated: Line(s) Down Wind: Line(s) Anchored: Turns Targeted / Long Radius: 20 in. YES YES 10 in. YES YES YES YES ACCUMULATOR SYSTEM: Systems Pressure: 3000 , psig Pressure After Closure: 1750' ' psig 200 psi Attained After Closure: 0 min. 32 sec. Systems Pressure Attained: 1 min. 47 sec. Nitrogen Bottles: {8) BOTTLES ...... 2150 AvE. , .... ',',, psig MUD SYSTEM INSPECTION: Light Alarm Trip Tank: OK OK Mud Pits: OK oK Flow Monitor: OK 01~" GAS DETECTORS: Light Alarm Methane OK OK Hydrogen Sulfide: 0K ,, O, Ki, DIVERTER SCHEMATIC NORTH Prevailing Winds Normally Closed Wellhouse Wellhouse (RIO LAYOUT IS APPROXIMATE) Normally Open P._.~e o~ if~,~ 13' 10" Knife Valves 38' . ~ Mechanically Connected 45' . O 20" Annular Preventer /./../'/With 10" FO Hydraulic Knife Valve Wellhouse Wellhouse Pipe Shed Hea~r Remarks: Distribution orig. - Well File c - Ope#Rep ¢ - Database c - Trip Rpt File c- Inspector Non comPliance'ltems ' Repair items. Withii'," 0.' ,'", 'Day'(si Ah~j contact the' In'spec;['or ~' 659'-:j6b? ................... FI-022 (Rev. 7/93 EENIIXCD.XLS ~KA OIL AND GAS CONSERVATION COMMISSION TONY KNOWLE$, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 August 29, 1995 Terry Jordan, Senior Drilling Engineer ARCO Alaska, Inc. Inc. P O Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Unit 12-35 ARCO Alaska, Inc. . , Permit No 95-130 Surf Loc 348'NSL, 705'WEL, Sec. 18, T10N, R15E, UM Btmhole Loc 3300'NSL, 278'WEL, Sec. 25, T10N, R14E, UM Dear Mr. Jordan: 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. Blowout prevention equipment (BOPE) must be tested in accordance with 20 AAC 25.035. Sufficient notice (approximately 24 hours) of the BOPE test performed before drilling below the surface casing shoe must be given so that a representative of the Commission may witness the test. Notice may be given by contacting the Commission petroleum field inspector 659-3607. . Yours very truly, , Russell A. Douglass Commissioner BY ORDER OF THE COMMISSION /encl c: Dept of Fish & Game, Habitat Section - w/o encl Dept of Environmental Conservation - w/o encl STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 20 AAC 25,005 la. Type of work Drill [] Redrill I-Illb. Type of well. Exploratory [-I Stratigraphic Test [] Development Oil [] 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=72 feet Prudhoe Bay Field/Prudhoe 3. Address 6. Property Designation Bay Pool P. O. Box 196612. Anchoraae. Alaska 99519-6612 ADL 028316-2 4. Location of well at surface 7. Unit or property Name 11. Type Bond(see 20 AAC 25.025) 348' NSL, 705' WEL, SEC 18, TION, R15E Prudhoe Bay Unit At top of productive interval 8. Well number Number 4426' NSL, 3768' WEL, SEC 30, TION, R15E 12-35 U-630610 At total depth 9. Approximate spud date Amount 3300' NSL, 278' WEL, SEC 25, TION, R14E 09/03/95 $200,000.00 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property15. Proposed depth (MD and TVD) property line ADL 028335 278 feet 12-23, 26' at 1278' MD feet 1920 13964' MD/9022' TVD feet 16. To be completed for deviated wells .17. Anticipated pressure (see 20 AAC 25.035 (e)(2)) Kickoff depth soo feet Maximum hole angle 9o o Maximum surface 3330 pslg At total depth (TVD) 8800'/4~)0 pslg 18. Casing program Specifications Setting Depth s~ze Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 30" 20" 91.5#. H-40 WELD 80' 31' 31' 111' 111' 260 sx AS (Approx.) 13-1/2" 10-3/4" 45.5# NT80 BTC 3805' 30' 30' 3835' 3387' 1265 sx CS III, 375 sx 'G', 250 sx CS II 9-7/8" 7-5/8" 29.7# L-80 NSCC 11555' 28' 28' 11583' 8933' 265 sx Class 'G' 6-3/4" 4-1/2" 12.6# L-80 NSCT 1545' 11433' 8848' 12978' 9022' .280 sx Class 'G' 6-3/4" 4-1/2" 12.6# L-80 NSCT 986' 12978' 9022' 13964' 9022' Slotted 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 ',~ ~, i ~' Intermediate Production AUG 25 ~995 Liner Perforation depth: measured A~aska Oil & Gas Cons. Commissio[~ true vertical Anchorage 20. Attachments Filing fee [] Property plat [] BOP Sketch [] Diverter Sketch [] Drilling program[] Drilling fluid program [] Time vs depth pict [] Refraction analysis [] Seabed report[] 20 AAC 25.050 requirementsl-I 21.1 hereby certif.y, thatJh~,,.fore~loing is true and correct to the best of my knowledge"~ Signed7~/~ ~' ~4~ Title Senior Orillin~l Engineer Date Commission Use Only Permit Number IAPI number Appro~,l date ~ ISee cover letter p,~'-'/.~c:~ 15 °' ° '2'9 -'' ~--'~-~-~ I'-'" ~//'z.'~//~,_~- Ifor other requirements Conditions of approval Samples required [] Yes ~ No Mud Icg r&quired[]Yes ~ No Hydrogen sulfide measures [] Yes [] No Directional survey requirecl ~ Yes [] No Required working pressure for BOPE [] 2M; I--13M; ,~5M; I-IIOM; []15M; Other: ORIGINAL SIGNED BY by order of Approved by '" RUSSELL A, DOUGLASS Commissioner tne commission Date cate Form 10-401 Rev. 12-1-85 Submit I Well Name: [ DS 12-35 I Well Plan Summary Type of Well (producer or injector): } Pre-Produced WAG Injector Surface Location: 348' FSL 705' FEL Sec 18 T10N R15E Start of Horizontal Location: 4426' FSL 3768' FEL Sec 30 T10N R15E End of Horizontal Location: 3300' FSL 278' FEL Sec 25 T10N R14E AFE Number: I 4J0302 I Estimated Start Date: I Sept 3, 1995 Rig: I Nabors 18-E Operating days to complete: I 30 I MD: 113,964' I ITVD: I9,022' I IRT-GL I31' I IKBE:171.8' I Well Desitin (conventional~ slimhole~ etc.) I Slimhole Horizontal w/4-1/2" Solid by Slotted LinerI Formation Markers: Formation Tops MD TVD (RKB) SV3 3835' 3387' 10-3/4" casing point K-15 5805' 4807' K-10 9305' 7329' K-5 10531' 8212' K-2 10765' 8381' Base HRZ 10868' 8455' K-1 11055' 8590' Sag River 11583' 8933' 7-5/8" casing point Top Shublik 11627' 8954' Top Sadlerochit (PH) 11729' 9002' Pilot hole target TD of Pilot Hole 12120' 9167' Start of Horizontal 11993' 9022' TD of Well 13964' 9022' Casin¢l/Tubing Proqram: Hole Size Csg/ Wt/Ft Grade Conn Length Top Btm Tbs O.D. MD/TVD MD/TVD 30" 20" 91.5# H-40 Weld 80' 31 '/31' 111 '/111' 13-1/2" 10-3/4" 45.5# NT80 BTC 3805' 30'/30' 3835'/3387' 9-7/8" 7-5/8" 29.7# L-80 NSCC 11555' 28'/28' 11583'/8933' 6-3/4" 4-1/2" 12.6# L-80 NSCT 1545' 11433'/8848' 12978'/9022' 6-3/4" 4-1/2" 12.6# L-80 NSCT 986' 12978'/9022' 13964'/9022' slotted Tubing 4-1/2" 12.6# L-80 NSCT 11307' 26'/26' 11333'/8784' AUG 2. 5 1995 0il & Gas Cons. Commission Anchorage Logging Program: I Logs: 13-112" Hole 9-718" Hole 6-3~4" Hole Cased Hole: MWD Directional MWD Directional Pilot: GR/DIL/DENSlTY/SONIC (NEUTRON Contingency) Horizontal: MWD GR/Directional/Resistivit7 CBL Mud Program: Surface Mud Properties: I 13-1/2" hole section: SPUD Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point 9el ~lel Loss Initial 8.5 _+ 300 40-60 30-60 50-80 9-10 15-25 Final 9.5 100-200 25-50 15-25 25-40 9-10 15-25 Hazards/Concerns Due to light gravel expectations, no real concerns in surface hole. Intermediate Mud Properties: J 9-7/8" hole section to top of Sag: LSND Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss Initial 8.8-9.0 35-40 8-12 3-6 8-10 9.0-9.5 8-12 5,800' 9.7 40-45 10-12 4-8 8-12 9.0-9.5 6-8 Final 9.8-9.9 45-50 12-15 4-8 8-12 9-10 <6 HTHP-15.0 Hazards/Concerns Cretaceous overpressure expected, MW to be at least 9.7 ppg. Utilize hi vis sweeps to assist hole cleaning Monitor LSYP and increase if problems occur trying to clean the hole. Potential high torque could need lubricant use. Reduce APl fluid loss to <6 cc before drilling Kingak Section. Lost circulation potential as we cross faults & enter Sag River. If high torque is encountered, respond with lubricants. Note: The Jurassic shales may be particularly troublesome, so treat with Baranex, Baratrol and Boreplate at 2.0 ppb each. Production Mud Properties: I 6-3/4" hole section: LSND for Pilot Hole I Xanvis KCL for Horizontal Depth Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point 9el 9el Loss Initial 8.8-9.0 35-45 8-12 3-6 8-10 9-10 <6 Pilot Hole 8.8-9.0 35-45 8-12 3-6 8-10 9-10 <6 TD Plugback Swap to Xanvis KCI Initial 8.8-9.0 50-60 30-40 15-20 18-24 9.5-10.5 <6 Final 8.8-9.0 50-60 30-40 15-20 18-24 9.5-10.5 <6 Hazards/Concerns Lost Circulation a possibility due to overbalance in Sadlerochit. Differential sticking possible with overbalance situation. Perform/report daily checks on KCI concentrations in Xanvis KCI system. High torque may be experienced and should be countered with lubricants. '.L.i v / UG 25 995 Gas Cons. Commission Anchorage Directional: I KOP: 1500' Maximum Hole An~]le: Tan~lent An~lle Close Approach Well: ; DS 12-23 (26' away at 1278' MD) Well Control: Well control equipment consisting of 5,000 psi W.P. pipe rams, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, BOPE and drilling fluid system schematics on file with AOGCC. /~UG ?_5 ~995 Gas Cons. Commission Anchorage . . . . . 10. 11. PROPOSED DRILLING AND COMPLETION PROGRAM WELL: DS 12-35 [ 42 - 25 - 10 - 14 ] MIRU. NU diverter and function test same. Drill 13-1/2" hole to +_ 3835' MD/3387' TVD. Run and cement 10-3/4" 45.5# NT-80 BTC casing to surface. Install blowout prevention equipment consisting of 5,000 psi W.P. pipe rams, blind rams, and annular preventer. Function test BOPE to 5,000/250 psi. Test 10-3/4" casing to 3,000 psi for 30 minutes. A formation leak-off test will be performed 10' below the 10-3/4" shoe. Directionally drill 9-7/8" hole to the top of the Sag River @ +_ 11,583' MD/8,933' TVD. Run 7-5/8" 29.7# L-80 NSCC casing string and cement with Class G cement to 1,000' MD above the casing shoe. Test casing to 3,500 psi. Drill a 6-3/4" hole 10' outside of 7-5/8" casing and test the formation to a minimum of 0.5 ppg over the mud weight to be used to drill the hole section. Drill the 6-3/4" hole to the TD of the pilot well at +_ 12,120' MD/9,167' TVD. Plugback pilot hole to the 7-5/8" casing shoe with a cement plug. Drill off cement plug and 10' on new hole and displace mud system to Xanvis KCI mud system. Directionally drill to horizontal and continue to TD at +- 13,964' MD/9,022' TVD. Note - Carefully monitor torque and drag to ensure that parameters do not exceed the rating of 3 1/2" DP. Use lubricants as required. Make a hole opener run with a 7-5/8" casing scraper spaced to scrape the packer setting depth. Run 4-1/2" 12.6# NT-80 solid by slotted NSCT liner with liner hanger. Liner will be set at TD and lapped +_150' inside 7-5/8" casing shoe. Cement the solid 4-1/2" liner with Class G cement. Release from hanger. Drill out cement between solid and slotted liner. Displace well from Xanvis mud to filtered seawater. Spot lithium hypochlorite breaker across slotted liner length Run 4-1/2" L-80 tubing with SSSV, GLM's, and 7-5/8" packer assembly. Set packer and test tubing annulus w/ 4,000 psi. Set BPV. ND BOPE. Freeze protect well to 2100' TVD through shear valve in top GLM station. Release rig. Drilling Hazards · No hydrocarbon-bearing zones expected above the Sag River formation. · Losses have been encountered drilling the Kingak, Sag River, and Sadlerochit formations on DS 12. · A minimum of 9.7 ppg mud weight will be used to drill the Cretaceous injection interval. This will allow a 100 psi trip margin over the expected 9.3 ppg EMW @ 4600' TVDSS. AUG 995 Litl & Gas Cons. C0~[ss~o~ Anchorage Disposal Cuttings Handling: Cuttings should be hauled to the ball mill at CC-2A. Fluid Handling: All drilling and completion fluids can be annular injected. Request to have well DS 12-35 for annular pumping. Request to AOGCC for Annular Pumping Approval for DS 12-35: 1. Approval is requested for Annular Pumping into the DS 12-35 10-3/4" x 7-5/8" casing annulus. 2. As referenced in Area Injection Order #4, there are no drinking water aquifers in the Prudhoe Bay Field Eastern Operating Area (including the Lisburne Oil Pool), as the average level of Total Dissolved Solids (TDS) at the ambient water within the proposed project area is above 10,000 ppm. There are no domestic or industrial use water wells located within one mile of the project area. 3. The 10-3/4" casing shoe will be set at 3835' MD (3387' TVD) which is below the Permafrost and in shale formations in the Sagavanirtok above the Ugnu Formation. 4. The burst rating (80%) for the 10-3/4" 45.5# NT-80 casing is 4170 psig while the collapse rating (80%) of the 7-5/8" 29.7# L-80 casing is 3830 psig. The break down pressure of the Ugnu formation is 13.5 ppg equivalent mud weight. The Maximum Allowable Surface Pressure while annular pumping is calculated according to the following equation and is 2465 psi for a 10.0 ppg fluid in this well (Assumes worst case in which 7-5/8" casing is filled with gas). MASP = 3830 psig - ((fluid density ppg - 1.9) X 0.052 X 10-3/4" Casing Shoe TVD) 5. A determination has been made that the pumping operation will not endanger the integrity of the well being drilled by the submission of data to AOGCC on 7/24/95 which demonstrates the confining layers, porosity, and permeability of the injection zone. 6. The cement design for this well ensures that annular pumping into hydrocarbon zones will not occur. AREA WELL PREV VOL PERMITTED PERMITTED INJECTED VOL DATES (aBES) (aBES) Prudhoe Bay DS 12-35 0 0 Submitted for 1995 DO NOT EXCEED 35,000 BBLS IN ANY ANNULUS. A, UG 2~ 1995 Gas Cons. Commission Anchorage 10-3/4" SURFACE CASING CEMENT PROGRAM - BJ SERVICES CASING SIZE: 10-3/4" PREFLUSH: 75 bbls fresh water ahead of lead slurry. LEAD CEMENT TYPE: COLD SET III ADDITIVES: retarder YIELD: 1.92 ft3/sx THICKENING TIME: > 4 hrs WEIGHT: 12.2 ppg APPROX. # SACKS: 1265 CIRC. TEMP: 40°F MIX WATER: 10.53 gps TAIL CEMENT TYPE: CLASS G ADDITIVES: 2% A-7 + 1.0 ghs FP-6L WEIGHT: 15.8 ppg YIELD: 1.15 ft3/sx APPROX. # SACKS: 375 THICKENING TIME: > 3-1/2 hrs MIX WATER: 4.95 gps TOP JOB CEMENT TYPE: COLD SET II ADDITIVES: WEIGHT: 14.95 ppg APPROX. # SACKS: 250 YIELD: 0.96 ft3/sx MIX WATER: 3.89 gps THICKENING TIME: Greater than 2 hrs @ 50°F CENTRALIZER PLACEMENT: 1. Run 1 bow type centralizer per joint for the first 15 joints. 2. Place the centralizers in the middle of each joint with a stop collar. CEMENT VOLUME: 1. Lead slurry from TD to surface w/100% excess (less the tail slurry volume). 2. Tail slurry volume 375 sx (to cover 500' of casing shoe w/100% excess). 3. Top job volume 250 sx. AUG 2~ 1995 Alaska (J~l & Gas Cons. Commission Anchorage 7-5/8" PROTECTION CASING CEMENT PROGRAM - BJ SERVICES CASING SIZE: 7-5/8" CIRC. TEMP: 140°F PREFLUSH' 20 bbls fresh water SPACER: 50 bbls BJ MCS-4 Spacer weighted 1.0 ppg above mud weight. TAIL CEMENT TYPE: CLASS G ADDITIVES: 0.3% FL-52 + 0.5% CD-32 + 0.1% A-2 + 1.0 ghs FP-6L WEIGHT: 15.8 ppg YIELD: 1.14 ft3/sx MIX WATER: 4.85 gps APPROX. # SACKS: 265 THICKENING TIME: 3-1/2 to 4-1/2 hrs FLUID LOSS: 100-150 cc/30 minutes FREE WATER: 0 cc CENTRALIZER PLACEMENT: 1. Run 1 Turbulators per joint from TD to 500' MD above shoe. OTHER CONSIDERATIONS: Perform lab tests on mixed cement/spacer/mud program and ensure compatibility prior to pumping job. Ensure thickening times are adequate relative to pumping job requirement. Displace at 12 bpm. Mix the tail slurry on the fly. CEMENT VOLUME: 1. Tail slurry to 11,074' MD (1000' above shoe/Sag River) 2. 80' MD 7-5/8" 29.7# capacity for float joints. Note: No hydrocarbon bearing zones are expected in the Cretaceous interval AUG 25 1995 u~t & 6as Cons, Commission Anchorage 4-1/2" PRODUCTION LINER CEMENT PROGRAM - BJ SERVICES CIRC. TEMP: 140° F BHST: 220° F at 8800' TVDSS. PREFLUSH: 20 bbls fresh water SPACER: 70 bbls BJ MCS-4 Spacer weighted 1.0 ppg above mud weight. CEMENT TYPE: CLASS G ADDITIVES: 150 ghs BA-86L + 0.6% CD-32 + 0.2% FL-33 + 0.2% A-2 + 0.5% gel + 2 ghs FP-10L WEIGHT: 15.7 ppg YIELD: 1.17 ft3/sx MIX WATER: 3.58 gps APPROX. # SACKS: 280 THICKENING TIME: 45 min. @ Surface + 3-4 hrs @ 140°F FLUID LOSS: less than 50 cc/30 minutes @ 140°F FREE WATER: 0 cc at 45° angle. NOTE: Ensure that a thickening time test is performed that simulates the shut down time incurred while rotating off of the liner. Note gellation tendencies ( if any ) of slurry when consistometer is re-started after shutdown period - additional retarder may be required - consult w/cementer. CENTRALIZER PLACEMENT: 1. Run 2 right hand turbolators per joint in open hole, 2. Run 1 right hand turbulator per joint in lap, and none opposite intermediate casing shoe.. OTHER CONSIDERATIONS: Batch mix the cement slurry. Perform fluid loss test on the batch mixed slurry. Fluid loss should be 50 cc/30 min. or less. Report actual fluid loss on morning report. Displace @ 6-8 bpm. LINER CEMENT VOLUME: 1. Open hole (6-3/4" X 4-1/2") + 30% excess (adjust if a caliper Icg is run and it indicates severe washouts). 2. 4-1/2", 12.6# casing capacity below landing collar (80'). 3. 150' liner lap (6.875" x 4-1/2") 4. 200' of cement on top of the liner in the 7-5/8" casing. AUG 25 1995 Alaska 0il & Gas Cons. Commission Anchorage AUG 25 't995 Alas~ 0it & Gas Cons. Commission Anchorage ~e].l ......... : DS].2-35 PILOT I.{OL]~ (P2) - Field ........ : PRUDBOE BAY, DS12' _"omputation..: Minimum Curvature ' ~nits ........ : FEET ' Surface Lat..: 70.21476995 N Surface Long.: 148.41169519 W Anadrill Schlumberger Alaska District 1111 East 80th Avenue Anchorage, A/( 99518 (907) 349-4511 Fax 349-2487 DIRECTIONAL WELL PLAN for SHARED SERVICES DRILLING LOCATIONS - ALASKA Zone: 4- Legal Description X-Coord Y-Coord ~urface ...... : 348 FSL 705 PEL S18 T10N R15E OM 696909.05- 5930661.30- Farget ....... : 4638 FSL 3604 FEL S30 T10N R15E OM 694197.00'- 5924320.00' 3HL .......... : 4436 FSL 3895 FEL S30 T10N R15E OM 693911.89 5924110.47 Prepared ..... : 08/23/95 Vert sect az.: 235.18' KB elevation.: 71.80 Magnetic Dcln: +29.372 (E)- Scale Factor.: 0.99994405 ANAD~[q°nvergence' ': ~ PRopOsED WELL PROFILE STATION MEAS INCLN DIRECTION VERT-DEPTHS SECT COORDINATES-FROM STATE-PLANE TOOL DL/ IDENTIFICATION DEPTH ANGLE CB- 0 0.00 (OF/BUILD 1/100- 500 0.00 600 1.00 700 · 2.00 800 3.00 AZIMUTH TVD SUB-S DIST 0.00 0 -72 0 0.00 N 0.00 500 428 -0 0.00 N 203.83 600 528 I 0.80 S 203.83 700 628 3 3.19 S 203.83 800 728 7 7.18 S Wellhead X Y FACE 100 0.00 E 696909.05 5930661.30 0.00 0.00 E 696909.05 5930661.30 0.00 0.35 W 696908.72 5930660.49 HS 1.00 1.41 W 696907.72 5930658.07 HS 1.00 3.17 W 696906.07 5930654.04 HS 1.00 ~UILD i.5/ioo- 90O 4.00 1000 5.O0 1100 6.50 1200 8.00. 1300 9.50 203.83 900 828 12 203.83 999 928 19 203.83 1099 1027 27 203.83 1198 1126 38 203.83 1297 1225 51 12.77 S 19.94 S 29.11 S 40.65 S 54.57 S 5.64 W 696903.75 5930648.39 HS 1.00 8.81 W 696900.77 5930641.13 HS 1.00 12.86 W 696896.96 5930631.87 HS 1.50 17.95 W 696892.16 5930620.19 HS 1.50 24.10 W 696886.38 5930606.12 HS 1.50 UILD 2/100. 1400 11.00 1500 12.50 203.83 1395 1323 66 203.83' 1493 1421 84 70.85 S 89.47 S 31.29 W 696879.62 5930589.67 HS 1.50 39.51 W 696871.89 5930570.83 HS 1.50 %nadrill (c)95 1235PIL2 2.5b.01 11:45 AM P) DS12-35 PILOT HOLE (P2) STATION MEAS INCLN IDENTIFICATION DEPTH ANGLE 1600 14.50 1700 16.50 1800 18.50 1900 20.50 ~URVE 2.5/100' 2000 22.50 ~ND 2.5/100 CURVE- .~3RV~ 2.5/100- ~ND 2.5/100 CURVE ' .0-3/4" CASING POINT 2100 24.95 2200 27.42 2300 29.88 2400 32.35 2500 34.83 2600 37.31 2700 39.79 2800 42.27 2874 44.11 3228 44.11 3300 43.98 3400 43.90 3429 43.90 3472 43.90 3835 43.90 ?-5- 4059 43.90 ?-3" 4895 43.90 :-15' 5805 43.90 :-12' 8442 43.90 '-10- 9305 43.90 '-5 10531 43.90 -2 10765 43.90 ASE HRZ- 10868 43.90 %nadrill (c)95 1235PIL2 2.5b.01 11:45 AM P) 08/23/95 Page 2 PROPOSED WELL PROFILE DIRECTION VERT-DEPTHS SECT AZIMUTH TVD SUB-S DIST 203.83 1590 1519 103 203.83 1687 1615 126 203.83 1782 1710 152 203.83 1876 1805 180 203.83 1969 1898 212 COORDINATES-FROM STATE-PLANE Wellhead X Y 110.83 S 48.94 W 135.27 S 59.74 W 162.78 S 71.89 W 193,31 S 85.37 W 226.84 S 100.17 W 696863.02 5930549.24 696852.86 5930524.52 696841.44 5930496.71 696828.76 5930465.84 696814.83 5930431.94 TOOL DL/ FACE 100 HS 2.00 HS 2.00 HS 2.00 HS 2.00 12R 2.00 205.02 2061 1989 246 206.01 2151 2079 285 206.85 2238 2167 327 207.57 2324 2252 372 208.20 2407 2336 422 263.46 S 116.83 W 696799.14 5930394.90 llR 2.50 303.27 S 135.85 W 696781.17 5930354.60 10R 2.50 346.20 S 157.20 W 696760.95 5930311.14 9R 2.50 392.15 S 180.83 W 696738.52 5930264.59 8R 2.50 441.05 S 206.72 W 696713.92 5930215.04 8R 2.50 208.75 2488 2416 474 209.25 2566 2495 530 209.70 2642 2570 589 210.00 2696 2624 635 210.00 2950 2878 858 492.79 S 234.79 W 696687.20 5930162.58 7R 2.50 547.29 S 265.01 W 696658.42 5930107.32 7R 2.50 604.43 S 297.31 W 696627.62 5930049.35 7R 2.50 648.36 S 322.52 W 696603.56 5930004.78 2.50 861.95 S 445.84 W 696485.87 5929788.07 95L 0.00 207.43 3002 2930 903 203.83 3074 3002 963 202.78 3095 3023 980 202.78 3126 3054- 1006 202.78 3387 3315~ 1218 905.64 S 469.77 W 696463.08 5929743.76 93L 2.50 968.19 S 499.78 W 696434.72 5929680.46 91L 2.50 986.71 S 507,76 W 696427.22 5929661.73 2.50 1014.34 S 519.36 W 696416.35 5929633.82 0.00 1245.92 S 616.61 W 696325.18 5929399.80 0.00 202.78 3549 3477~ 1349 202.78 4151 4079- 1838 202.78 4807 4735- 2371 202.78 6707 6635- 3915 202.78 7329 7257 4420 1389.66 S 676.97 W 696268.59 5929254.54 0.00 1923.80 S 901.28 W 696058.30 5928714.76 0.00 2505.85 S 1145.70 W 695829.15 5928126.56 0.00 4191.68 S 1853.65 W 695165.46 5926422.94 0.00 4743.56 S 2085.41 W 694948.18 5925865.23 0.00 202.78 8212 8140- 202.78 8381 8309' 202.78 8455 8383' 5138 5527.03 $ 2414.41~ 694639.74 5925o73.5o iS'},'~'~'~'j.~:~-s---~1~-~.--~8---,-- ~-~4~eo. ~0 s~4~. ~ 5~"i"~:!~2.64 s 2504.~.~54.86 5924855.6~ AUG 25 1995 Alas~ Oil & Gas Cons. Commission Anchorage 0.00 0.00 0.00 Q. .h J 0 DS12-35 PILOT HOLE (P2) 08/23/95 Page 3 PROPOSED WELL PROFILE STATION IDENTIFICATION CURVE 6/100 M~AS INCLN DIRECTION VERT-DEPTHS SECT DEPTH ANGLE 11055 43.90 11173 43.90 11200 44.68 11300 47.85 11400 51,42 COORDINATES-FROM STATE-PLANE TOOL DL/ AZIMUTH TVD SUB-S DIST Wellhead X Y FACE 100 202.78 8590 8518- 5445 5862,42 S 2555,26 W 694507.70 5924734,57 0.00 202,78 8675 8603 5514 5937,63 S 2586,84 W 694478,09 5924658,56 62R 0,00 204,81 8694 8622 5530 5954,83 S 2594,42 W 694470,95 5924641,17 61R 6,00 211,86 8763 8691 5594 6018,28 S 2628,77 W 694438.28 5924576,85 56R 6,00 218,20 8828 8756 5666 6080,54 S 2672,55 W 694396.14 5924513,47 52R 6,00 11500 55.29 7-5/8" CASING POINT. 11583 58.70 SAG RIVER- 11583 58,70 11600 59,41 SHUBLIX-' 11625 60.45 223,91 8888 8816 5744 6140,92 S 2725,27 W 694345.01 5924451.74 48R 6,00 228,26 8933 8861~- 5812 6189,21 S 2775,50 W 694296,06 5924402,16 46R 6,00 228,26 8933 8861-' 5812 6189.21 S 2775,50 W 694296.06 5924402,16 46R 6,00 229.10 8941 8870 5827 6198.76 S 2786,37 W 694285.45 5924392.33 45R 6.00 230,31 8954 8882 5848 6212.52 S 2802,60 W 694269,58 5924378,15 45R 6,00 ES'S) 6/100 CUR~' PILOT HOLE TARGET- TSAD / ~VZSm~K~ ZONE 4/4B- 11700 63,71 11729 65,00 11729 65,00 11729 65,00 11741 65.00 233.86 8989 8917 5914 6253.43 S 2855.16 W 694218.11 5924335.89 43R 6.00 235.18 9002 8930 5941 6268.76 S 2876.68 W 694197.00 5924320.00 6.00 235.18 9002 8930 5941 6268.76 S 2876.68 W 694197.00 5924320.00 6.00 235.18 9002 8930- 5941 6268,76 S 2876,68 W 694197,00 5924320,00 6,00 235.18 9007 8935 5952 6274.89 S 2885,48 W 694188.36 5924313,65 0,00 TOP ItO/T' ZONE 4A/X-RAY-- ORIGINAL OWC PRESENT OWC 11859 65.00 11933 65,00 11954 65.00 11954 65,00 12120 65.00 235.18 9057 8985' 6059 6336.11 S 2973.51 W 694101.96 5924250.16 235.18 9088 9016-- 6125 6374,07 S 3028,09 W 694048,40 5924210,79 235,18 9097 9025 6145 6385,08 S 3043,93 W 694032,84 5924199,36 235,18 9097 9025- 6145 6385,08 S 3043,92 W 694032,84 5924199,36 235,18 9167 9095' 629S 6470.80 S 3167,18 W 693911.89 5924110,47 0.00 0,00 0.00 0,00 0,00 ZONE 3-- zows 2/2c- 9222 9150.. 9243 9171- O O (Anadrill (c) 95 1235PIL2 2.5b.01 11:45 AM P) AUG 25 1995 Alaska 0il & Gas Cons. Commission Anchorage Aug-23-9§ 14:18 Anadri I I SHARED SERVICES DRILLING DS12-35 PILOT HOLE (P2) VERTICAL SECTION VIEW i · i i i Section at: 235.18 TVD Scale · I inch = 1600 feet Dep Scale.' ! inch : ~600 feet Drawn ..... ' 08/23/95 Marker IUentification MD BKB SECTN Al KB 0 0 0 BI KOP/BUILO 1/100 500 500 -0 C) BUILD t.5/100 1000 999 D) BUILD 2/t00 1500 1493 84 E) CURVE 2.5/100 2000 1989 212 F) END 2.5/100 CURVE 2874 2696 635 G) CURVE 2.5/100 3228 2950 858 H) END 2,5/100 CURVE 3429 3095 980 I) 10-3/4' CASING POINT 3835 3387 1218 J) CURVE 6/100 11173 8675 55t4 K) 7-5/8" CASING POINT 11583 8933 5812 L) END 6/100 CURVE 11729 g002 5941 M) PILOT HOLE TARGET 11729 9002 5941 N) TD 12120 9t67 6295 INCLN 0.00 0.00 5 O0 12 50 22 50 44 11 44 ~1 43 90 43.90 43.90 58.70 65,00 65.00 65.00 0 800 1600 (~aUr~)l (C)g5 123§PIL2 2.r'~.OI tl:4g AN P) 2400, 32oo 4000 48oo Section Departure AUG 25 1995 Ataska Oit & Gas Cons. Commission Anchorage 5600 6400 7200 8000 8800 9600 10400 Aug-23-95 14:19 Anadrill DPC ....... SHARED SERV T CES DRT LL TNG Marker Identi,,cation MD ./, ~/. DS~2-35 PILOT HOLE (P2) A) KB 0 0 0 Il)IlO 1.5/100 ~000 ~0 D) BUILD ~/,00 '~00 ~ ~0 .......... E) CURVE 2.5/]00 ~000 227 100 CLOSURE ' 7204 feet at Azimuth 206.08 F) END 2.5/J00 CURVE 2874 648 323 G) CURVE ~.5/~00 3228 862 446 DECLINATION.' +29.372 (E) H) END 2.5/100 CURVE 3429 987 506 SCALE · ~ inch = ~200 feet I) 1o-3/4' CASING POINT 3835 1246 J) CURVE 6/$00 11~73 593B 2587 DRAWN · 08/23/95 K) 7-5/8" CASING POINT S~5E)3 6:!89 2775 L) END 6/100 CURVE t1729 6269 2877 M) PILOT HOLE TARGET 11729 6269 2877 ........ N) TO 12i20 6471 3167 i m Il mm .......... ' ....................... .......... H.G F ...... 600 ..... ........... 3600 3000 .... ~1 ..... 4200 ~ 4800 ..... i50 F'TARGET ),AO~,__ ,,, ,ot~ Oil ~ Gas Cons. Comml=,sion "' ......... 6600 7200 ' - - 7800 7800 7200, 6600 6000 5400 4800 4200 3600 3000 2400 1800 1200 600 0 600 Well ......... : DS12-35 HORIZONTAL Field ........ : PRUDHOE BAY, DS12' Computation..: Minimum Curvature - Units ........ : FEET- Surface Lat..: 70.21476995 N Surface Long.: 148.41169519 W Anadrill Schlumberger Alaska District 1111 East 80th Avenue Anchorage, AK 99518 (907) 349-4511 Fax 349-2487 DIRECTIONAL WELL PLAN for SHARED SERVICES DRILLING LOCATIONS - ALASKA Zone: 4 - Legal Description X-Coord Y-Coord Surface ...... : 348 FSL 705 FEL 818 T10N R15E UM 696909.05 5930661.30" Tie-in/KOP...: 4718 FSL 3502 FEL 830 T10N R15E UM 694296.06 5924402.16 Target ....... : 4426 FSL 3768 FEL S30 T10N R1BE UM 694039.00' 5924103.00-' BHL .......... : 3300 FSL 278 FEL S25 T10N R14E UM 692451.00- 5922936.00" STATION IDENTIFICATION .... z~ z SAO RIVER - Prepared ..... : 08/23/95 Vert sect az.: 235.18 '- KB elevation.: 71.80 ft Magnetic Dcln: +29.372 (g) Scale Factor.: 0.99994405 Convergence..: +1.49458805 PROPOSED WELL PROFILE ~ ~l & Gas Cons. Commis61~n MEAS INCLN DIRECTION VERT-DEPTHS SECT COORDINATES-FROM STATE-PLANE TOOL DL/ DEPTH ANGLE AZIMUTH TVD SUB-S DIST Wellhead X Y FACE 100 11583 58.70 228.26 8933 8861~ 5813 6189.21 S 2775.50 W 694296.06 5924402.16 30L 0.00 TIE-IN/CURVE 14/100 11583 58.70 11600 60.75 SHUBLIK- 11627 64.05 11700 73.12 11754 79.92 11804 79.92 11833 79.92 11841 79.92 11900 83.74 END 14/100 CURVE TSAD / IVISHAK- ZONE 4/4B CURVE 14/100 END 14/100 CUR%q~' 11993 90.00 228.26 8933 8861 5813 6189.21 S 2775.50 W 694296.06 5924402.16 30L <TIE 226.90 8941 8870 5827 6199.04 S 2786.25 W 694285.57 5924392.05 29L 14.00 224.83 8954 8882- 5851 6215.68 S 2803.40 W 694268.87 5924374.98 29L 14.00 219.75 8980 8909 5917 6265.96 S 2849.01 W 694224.58 5924323.52 27L 14.00 216.31 8993 8921 5967 6307.43 S 2881.42 W 694193.27 5924281.23 14.00 216.~1 9002 8930 / 6013 6346.96 S 2910.46 W 694165.27 5924240.96 0.00 216.31 9007 8935 ~ 6040 6369.62 S 2927.11 W 694149.21 5924217.87 0.00 216.31 9008 8937 6048 6376.52 S 2932.18 W 694144.33 5924210.84 63R 0.00 223.67 9017 8945 6104 6421.03 S 2969.54 W 694108.14 5924165.37 62R 14.00 9022 8950 6197 6481.58 S 3040.29 W 694039.00 5924103.00 14.00 (Anadrill (c) 95 1235}{OR2 2.Sb.01 10:34 AM P) . DS12-35 HORIZONTAL (P2) 08/23/95 Page 2 PROPOSED WELL PROFILE STATION IDENTIFICATION TARGET 11993 90.00 TD 13964 90.00 T0P HO/T ZONE 4A/X-RAY- ORIGINAL OWC MEAS INCLN DIRECTION VERT-DEPTHS SECT DEPTH ANGLE AZIMUTH TVD SUB-S DIST COORDINATES-FROM STATE-PLANE TOOL DL/ Wellhead X Y FACE 100 235.18 9022 8950 6197 6481.58 S 3040.29 W 694039.00 5924103.00 14.00 235.18 9022 8950 8168 7606.84 S 4658.28 W 692451.00 5922936.00 0.00 9057 8985' 9088 9016~' 9097 9025-' PRESENT OWC ZONE 3 ZONE 2/2C 9097 9025 9222 9150' 9243 9171 (Anadrill (c)95 1235~IOR2 2.5b.01 10:34 AM P) 0S 2-35 HORIZONTAL (P2) VERTICAL SECTION VIEW B) END 14/lO0 CURVE C} CURVE 14/JO0 D) END 14/tO0 CUHVE E) TARGET F) ID B Marker Identification MD BKB SECIN INCLN A) lIE-IN/CURVE 14/100 11583 8933 5813 58.70 1)754 8993 5967 79.92 11841 9008 6048 79.92 11993 9022 6197 90.00 11993 9022 6t97 gO,O0 13964 9022 8168 90.00 Section at: 235.18 TVD Scale.' I inch: 300 feet Dep Scale' I inch: 300 feet Drawn ..... '08/23/95 ,, · , ) - -~- ~ ~-~- i ~l~ ~,/lim. mjl/-~ · - -Bn' - .........._-_--_~.-_ 'T~-~/r '~ ....... " ~ ..... ~ ......... f ..... ) '-~'-'--~-':~ _- .~- - .................. _-_-_-_--__-- ~_= ..... · ~~~.i: ~' ' ........... ..... ~ ............... ~ ...................... )_ ' ,--~ ..... ..~ ....... .- ......... ~ ............. , . j AU3 25 ;995 ] Alalka Oil & Gas Con ;. Commill,ion - I '! ' i Anchora(:e I _.. , ,., 5600 5750 5900 6050 6200 6350 6500 6650 6800 6950 7100 7250 7400 7550 Section Departure (&nadr~I] (c)95 1235H~2 2.5b.01 10:5~ ~U4 P] DS~I2-35 HORTZONTAL (P2) PLAN VIE~ i i SHARED' 'SE V CE DRILLING 5]00 4950 4800 4650 4500 4350 4200 4050 3900 3750 3600 3450 ;LUSURE ' 8g~O teet a~ nz]mu[n ~]].4u , - , -- ]ECLINATION.' +29.372 (E} J ," · ~CALE · ] inch: 300 feet , )RA~N. '08/23/95 ...... ' .......... ii i iii 4arker Ideflt~ f~cat~on ~ N/S E/N .... TIE-IN/CURVE 14/1~ ii583 6389 2776 E~ 14/lO0 CUnVE 1~754 ~307 ~BB~ COnVE la/lO0 ~1841 8377 ~93~ __ ~ .~, ;OOO 5O i450 )900 <- ~ST 400 ii 2.51).01 !0:51 ~ P) r5oo :3 0 0 WELL PERMIT CHECKLIST 1. 2. 3. 4. 5. 6. ' 7. 8. 9. 10. 11. 12. 13. Permit fee attached .................. Lease number appropriate ............... Unique well name and number .............. Well located in a defined pool ............ Well located proper distance from drlg unit boundary. Well located proper distance from other wells ..... Sufficient acreage available in drilling unit ..... If deviated, is wellbore plat included ........ Operator only affected party .............. Operator has appropriate bond in force ......... Permit can be issued without conservation order .... Permit can be issued without administrative approval. Can permit be approved before 15-day wait ....... 'ENGINEERING UNIT# 14. Conductor string provided ............... ~ N 15. Surface casing protects all known USDWs ........ ~ N 16. CMTvol adequate to circulate on conductor & surf csg..~ N,~ 17. CMT vol adequate to tie-in long string to surf csg . . . 18. CMT will cover all known productive horizons ....... Y ~ 19. Casing designs adequate for C, T, B & permafrost .... ~ N 20. Adequate tankage or reserve pit ............. ~ N 21. If a re-drill, has a 10-403 for abndnmnt been approved. ~ 22. Adequate wellbore separation proposed .......... ~ N 23. If diverter required, is it adequate .......... ~_ N 24. Drilling fluid program schematic & equip list adequate .~ N 25. BOPEs adequate ............ ~ .... ~ N 26. BOPE press rating adequate; test to ~(~'~' psig.~Yw' N 27. Choke manifold complies w/API RP-53 (May 84) ....... Y 28. Work will occur without operation shutdown ....... ~N 29. Is presence of H2S gas probable ............ ~ N GEOLOGY 30. Permit can be issued w/o hydrogen sulfide measures .... Y ~/_ 31. Data presented on potential overpressure zones ..... ¥/~/ -~ /~ 32. Seismic analysis 9f shallow gas zones .......... ~ N /t,'~g I 33. Seabed condition survey (if off-shore) ........ /Y N ' 34. Contact name/phone for weekly progress reports . . . /. Y N [exploratory only] ~/ ENGINEERING: COMMISSION: Comments/Instructions: o Z 0 HOW/jo - A:~FORMS~cheklist rev 03/94 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. ALASKA INC D.S. 12 - 35 PH PRUDHOE BAY RECEIVED ©CT 2. 4 .' ..~ . ~- ...,..,,,~ ...~ ~ - ,.. . ,...n ", ~, ,,. ,;,. . .,,.,.~, · ,.....~'. ' . -. · 'n,.-B, .',.,~ ' ~,~.,.. ",. .. ; , '.'-',.:',,'~.' · · · ~, - '.: ..-' . ,~', .:.;~.,.~, -'. ¢...,;. :........;.~... 2'....., ,. ... .,..,~.? ,.'-...; ~;".~,=' .',, .... ;",7. ' '. '.:'"" .'.' ' ',-~.'" "&"" ·., .., , · , ~..~ ~.... .. ~ · -~.,,,..~,... ~ · · ..,.~,..~. ': ...... .., · ',. ?.~ '~ ...;. ~; ..~. ~..: =.'..- ,'.-. .... '. x' , ~. ~. -... .: ~ 2'.. ~ .... · ~,.....',.; . , '."-. ' °l.,' ~'.,t- '_ ' · ,,=, , · ;..'..,.....' '-..,.- ;.'"-.'." Run 1' 11 - October - 1995 DIFUACIZDL/GR M ICROFILMEn"'" r"m" U ATLAS Services 11880 12290 Tape Subfiie 2 ~s type: TAPE HEADER PRUDHOE BAY UNIT OPEN HOLE WIRELINE LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA 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 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING RUN 1 6499.00 K. RICHARDS SEE REMARKS REMARKS: D.S. 12-35PH 500292258870 ARCO ALASKA INC. WESTERN ATLAS LOGGING SERVICES 16-OCT-95 RUN 2 RUN 3 OPEN HOLE 18 10N 15E 348 705 69.60 68.10 40.10 CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 7.625 11890.0 6.750 12330.0 DIFL/AC/ZDL/GR. CIRCULATION STOPPED AT 0930, 11-OCT-95. LOGS WITNESSED BY: M. WHITELY & B. DAWSON. DUE TO BOREHOLE CONDITIONS A REPEAT PASS UP WAS NOT ATTEMPTED. THE DOWN PASS WAS USED FOR A REPEAT SECTION. THE ZDL PAD WAS CLOSED ON THE DOWN PASS & THEREFORE NO ZDL DATA WAS RECORDED ON THE REPEAT PASS. NOTE THE DENSITY CORRECTION IS READING HIGH. PER CLIENT'S REQUEST, BOREHOLE & TORNADO CHART CORREC- TIONS WERE APPLIED TO THE DIL DATA. THE DIL DATA WAS CALIPER CORRECTED (MAIN PASS) OR BOREHOLE SIZE (6.75" CORRECTED (REPEAT PASS). THE CORRECTED DATA WAS THEN USED IN THE ATLAS TORNADO CHART TO GET "RT" & "DI" CURVES. RT = TRUE FORMATION RESISTIVITY. DI = DEPTH OF INVASION. FILE HEADER FILE NUMBER: 1 EDITED OPEN HOLE MAIN PASS All tool strings; hole data. DEPTH INCREMENT: FILE SUMMARY depth shifted and clipped curves; .5000 PBU TOOL CODE START DEPTH STOP DEPTH GR 11880.0 12212.0 BCS 11880.0 12260.0 DIL 11880.0 12290.0 SDN 11880.0 12219.0 $ GR (MEASURED DEPTH) BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA BASELINE DEPTH LL8 11905.0 EQUIVALENT UNSHIFTED DEPTH ILD SP DT 11906.0 11909.5 11913.5 11920.0 11926.0 11929.0 11936.0 11936.5 11941.5 11942.5 11947.0 11952.5 11958.0 11961.5 11967.0 11967.5 11982.5 11983.0 11984.5 11985.0 11988.0 11988.5 11993.0 11993.5 11996.0 11999.5 12001.5 12003.5 12004.0 12006.5 12007.0 12011.0 12011.5 12018.0 12020.0 12025.5 12026.0 12031.5 12032.0 11936.0 11934.5 11940.5 11983.0 11983.0 11986.0 11985.5 12001.0 12000.5 12002.0 12003.5. 12005.5 12005.5 12010.0 12009.0 12026.0 12031.0 12031.0 11906.5 11913.0 11929.0 11928.5 11936.0 11967.0 11968.0 11985.0 11988.5 11993.0 11993.0 11996.0 11998.5 12003.0 12006.5 12010.0 12019.0 12024.5 12030.5 all runs merged; RHOB 11905.5 11909.5 11921.0 11926.5 11930.5 11937.0 11942.5 11948.0 11953.0 11958.5 11962.5 11969.0 11983.0 11989.0 11996.0 12001.5 12011.0 12018.0 12026.0 12031.5 no case 12046.0 12050.5 12050.5 12050.5 12052.0 12052.5 12052.5 12054.5 12053.5 12055.5 12055.0 12057.0 12057.5 12067.5 12073.0 12079.5 12097.5 12098.0 12098.5 12115.5 12120.5 12120.0 12130.5 12130.5 12131.0 12131.5 12135.5 12136.0 12136.0 12136.0 12138.5 12139.0 12139.0 12139.0 12141.5 12148.0 12151.0 12152.0 12152.0 12151.5 12152.0 12151.5 12159.0 12159.0 12160.0 12161.0 12173.5 12174.5 12174.5 12173.0 12174.0 12174.5 12175.5 12174.5 12176.0 12179.5 12178.5 12199.0 12199.0 12199.0 12198.0 12199.5 12199.5 12206.0 12205.5 12208.5 12208.5 12209.0 12208.0 $ MERGED DATA SOURCE PBU TOOL CODE GR GR BCS BCS DIL DIL SDN $ REMARKS: 12035.5 12046.0 12051.5 12055.0 12068.0 12074.5 12081.5 12098.5 12116.0 12121.0 12130.5 12135.0 12141.0 12148.5 12177.5 RUN NO. PASS NO. MERGE TOP MERGE BASE 1 3 11880.0 12110.0 1 2 12110.0 12212.0 1 3 11880.0 12180.0 1 2 12180.0 12260.0 1 3 11880.0 12200.0 1 2 12200.0 12290.0 1 3 11880.0 12219.0 OPEN HOLE PORTION OF MAIN PASS. DUE TO STICK & PULL CONDITIONS ON THE BOTTOM PORTION OF THE MAIN PASS & THE FACT THAT THE REPEAT PASS WENT SLIGHTLY DEEPER THAN THE MAIN PASS, THE BOTTOM PORTION OF THE REPEAT WAS SPLICED ONTO THE BASE OF THE MAIN PASS (EXCEPT ZDL WHICH WAS NOT RECORDED ON REPEAT PASS). MTEM, TEND, '~ TENS WERE SHIFTED WITH L v. ILM, RT, & DI WERE SHIFTED WITH ILD. DRHO, PEF, & CALl WERE SHIFTED WITH RHOB. CN WN FN COUN STAT /??MATCH1.OUT /??MATCH2.OUT /??MATCH3.0UT /??MATCH4.OUT /??MATCH5.OUT $ : ARCO ALASKA INC. : D.S. 12 -35PH : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 15 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR BCS 68 2 DT BCS 68 3 TEND BCS 68 4 TENS BCS 68 5 LL8 DIL 68 6 ILM DIL 68 7 ILD DIL 68 8 RT DIL 68 9 DI DIL 68 10 SP DIL 68 11 MTEM DIL 68 12 RHOB SDN 68 13 DRHO SDN 68 14 PEF SDN 68 15 CALl SDN 68 1 GAPI 4 1 US/F 4 1 LB 4 1 LB 4 1 OHMM 4 1 OHMM 4 1 OHMM 4 1 OHMM 4 1 IN 4 1 MV 4 1 DEGF 4 1 G/C3 4 1 G/C3 4 1 BN/E 4 1 IN 4 4 57 310 01 1 4 57 530 16 1 4 57 995 99 1 4 57 995 99 1 4 08 995 99 1 4 08 995 99 1 4 08 995 99 1 4 08 995 99 1 4 08 995 99 1 4 08 995 99 1 4 08 995 99 1 4 49 995 99 1 4 49 995 99 1 4 49 995 99 1 4 49 995 99 1 60 * DATA RECORD (TYPE# 0) 966 BYTES * Total Data Records: 58 Tape File Start Depth = 12313.000000 Tape File End Depth = 11880.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code d coding summary: Rep Code: 68 13873 datums Tape Subfile: 2 253 records... Minimum record length: 62 bytes Maximum record length: 966 bytes Tape Subfile 3 is type: LIS FILE HEADER FILE NUMBER: 2 EDITED CASED HOLE MAIN PASS Depth shifted and clipped curves for open hole logs run into casing. PASS NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH GRCH 11360.0 $ STOP DEPTH 11880.0 BASELINE CURVE FOR SHIFTS: GRCH CURVE SHIFT DATA (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH $ REMARKS: CASED HOLE PORTION OF MAIN PASS. CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12-35PH : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE~ 64) ONE DEPTH PER FRAME Tape depth ID: F 3 Curves: Name Tool Code Samples Units 1 GRCH GR 68 1 GAPI 2 TEND GR 68 1 LB 3 TENS GR 68 1 LB API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 30 310 01 1 4 30 635 99 1 4 30 635 99 1 12 * DATA RECORD (TYPE# 0) Total Data Records: 17 1014 BYTES * Tape File Start Depth = 11880.000000 Tape File End Depth = 11353.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 4221 datums Tape Subfile: 3 44 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes TOOL STRING NUMBER: PASS NUMBER: DEPTH INCREMENT: FILE SUMMARY Tape Subfile 4 is type: LIS FILE HEADER FILE NUMBER: 3 RAW OPEN HOLE MAIN PASS Curves and log header data for each run and tool string in separate files; Tool String #1 for Sadlerochit run presented first (primary depth control string used to depth shift the Sadlerochit interval) followed by files for other main pass tool strings per run. RUN NUMBER: 1 1 3 .2500 VENDOR TOOL CODE START DEPTH STOP DEPTH GR 11353.0 12226.0 AC 11848.0 12274.0 DIFL 11855.0 12303.0 ZDL 11855.0 12243.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT) : LOGGING SPEED (FPHR): TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE CHT MODL GR ZDL TEMP KNJT KNJT PCM AC DIFL $ CABLEHEAD TENSION MODAL SUB GAMMA RAY Z-DENSITY TEMPERATURE KNUCKLE JOINT KNUCKLE JOINT PULSE CODE MODULATOR BHC ACOUSTILOG DUAL INDUCTION BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF): 11-0CT-95 FSYS REV. J001 VER. 1.1 930 11-OCT-95 1518 11-OCT-95 12330.0 12300.0 11880.0 12290.0 1800.0 TOOL NUMBER 3974XA 3517XA 1309XA 2222MA/2222EA 2806XA 3921NA 3921NA 3506XA 1603MC/1609EB 1503XA 6.750 11890.0 11880.0 LSND 9.80 39.0 11.7 6.0 171.0 RESISTIVITY (OHMM) A'±' TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT): MUD FILTRATE AT MT: MUD FILTRATE AT BHT: MUD CAKE AT MT: MUD CAKE AT BHT: NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): REMARKS: MAIN PASS. $ CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12 -35PH : PRUDHOE BAY : NORTH SLOPE : ALASKA .975 .401 .938 .000 .898 .000 2.65 .000 1.5 66.0 170.0 66.0 .0 66.0 .0 * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 16 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR AC 68 1 GAPI 4 2 AC AC 68 1 US/F 4 3 CHT AC 68 1 LB 4 4 TTEN AC 68 1 LB 4 5 SPD AC 68 1 F/MN 4 6 RFOC DIFL 68 1 OHMM 4 7 RILM DIFL 68 1 OHMM 4 8 RILD DIFL 68 1 OHMM 4 9 RT DIFL 68 1 OHMM 4 10 DI DIFL 68 1 IN 4 11 SP DIFL 68 1 MV 4 12 TEMP DIFL 68 1 DEGF 4 13 ZDEN ZDL 68 1 G/C3 4 14 ZCOR ZDL 68 1 G/C3 4 15 PE ZDL 68 1 BN/E 4 16 CAL ZDL 68 1 IN 4 4 60 310 01 1 4 60 520 99 1 4 60 635 99 1 4 60 635 99 1 4 60 636 99 1 4 07 220 06 1 4 07 120 44 1 4 07 120 46 1 4 07 120 46 1 4 07 120 44 1 .4 07 010 01 1 4 07 660 99 1 4 46 350 01 1 4 46 356 99 1 4 46 358 01 1 4 46 280 99 1 64 * DATA RECORD (TYPE# 0) 958 BYTES * Total Data Records: 275 Tape File Start Depth = 12313.000000 Tape File End Depth = 11353.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 79171 datums Tape Subfile: 4 355 records... Minimum record length: 62 bytes Maximum record length: 958 bytes Tape Subfile 5 is type: LIS FILE HEADER FILE NUMBER: 4 RAW OPEN HOLE REPEAT PASSES Curves and log header data for each pass, tool string, and run in separate files. RUN NUMBER: TOOL STRING NUMBER: PASS NUMBER: DEPTH INCREMENT: FILE SUMMARY 1 1 2 .2500 VENDOR TOOL CODE START DEPTH GR 11706.0 AC 11754.0 DIFL 11776.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): STOP DEPTH 12213.0 12261.0 12296.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE CHT MODL GR ZDL TEMP KNJT KNJT PCM AC DIFL $ CABLEHEAD TENSION MODAL SUB GAMMA RAY Z-DENSITY TEMPERATURE KNUCKLE JOINT KNUCKLE JOINT PULSE CODE MODULATOR BHC ACOUSTILOG DUAL INDUCTION BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT): 11-OCT-95 FSYS REV. J001 VER. 1.1 930 11-OCT-95 1454 11-OCT-95 12330.0 12300.0 11880.0 12290.0 3600.0 TOOL NUMBER 3974XA 3517XA 1309XA 2222MA/2222EA 2806XA 3921NA 3921NA 3506XA 1603MC/1609EB 1503XA 6.750 11890.0 11880.0 LSND 9.80 39.0 11.7 6.0 171.0 .975 .401 66.0 170.0 MUD FILTRATE AT MT: MUD FILTRATE AT BHT: MUD CAKE AT MT: MUD CAKE AT BHT: NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): REMARKS: REPEAT PASS (LOGGED DOWN). NO ZDL DATA LOGGED. $ CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12-35PH : PRUDHOE BAY : NORTH SLOPE : ALASKA .95~ .000 .898 .000 0.00 0.000 1.5 66.0 .0 66.0 .0 * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 12 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR AC 68 1 GAPI 4 2 AC AC 68 1 US/F 4 3 CHT AC 68 1 LB 4 4 TTEN AC 68 1 LB 4 5 SPD AC 68 1 F/MN 4 6 RFOC DIFL 68 1 OHMM 4 7 RILM DIFL 68 1 OHMM 4 8 RILD DIFL 68 1 OHMM 4 9 RT DIFL 68 1 OHMM 4 10 DI DIFL 68 1 IN 4 11 SP DIFL 68 1 MV 4 12 TEMP DIFL 68 1 DEGF 4 4 60 310 01 1 4 60 520 99 1 4 60 635 99 1 4 60 635 99 1 4 60 636 99 1 4 07 220 06 1 4 07 120 44 1 4 07 120 46 1 4 07 120 46 1 4 07 120 44 1 4 07 010 01 1 4 07 660 99 1 48 * DATA RECORD (TYPE# 0) 994 BYTES * Total Data Records: 127 Tape File Start Depth = 12296.000000 Tape File End Depth = 11696.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 35435 datums Tape Subfile: 5 205 records... Minimum record length: 62 bytes Maximum record length: 994 bytes Tape Subfile 6 is type: LIS 95/10/16 01 **** REEL TRAILER **** 95/10/17 01 Tape Subfile: 6 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Tue 17 OCT 95 3:18p Elapsed execution time = 2.15 seconds. SYSTEM RETURN CODE = 0 ~ape Subfile 2 is typ~: TAPE HEADER ~RUDHOE BAY UNIT MWD / MAD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 4 6532.00 F. O'NEILL M. WHITELY D.S. 12-35 PB1 500292258870 ARCO ALASKA INC. SPERRY-SUN DRILLING SERVICES 27 -NOV- 95 MWD RUN 5 MWD RUN 6 O F. O'NEILL M. WHITELY F. O'NEILL M. WHITELY MWD RUN 7 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: F. O'NEILL M. WHITELY WELL CASING RECORD MWD RUN 8 F. O'NEILL M. WHITELY 18 10N 15E 348 705 RECEIVED 6~1~68.10 Oil &~Gas Go'ns. Commi$$jo~3 4 o. lO ,-,n~horage OPEN HOLE CASING DRILLERS lST STRING 2ND STRING 3RD STRING PRODUCTION STRING REMARKS: BIT SIZE (IN) SIZE (IN) DEPTH (FT) 9.875 7.625 11890 6.750 12330.0 MWD - DGR. Date~ ALL DEPTHS ARE MEASURED BIT DEPTHS. WELL 12-35 PB1 IS REPRESENTED BY MWD RUNS 1, 2, 3, 4, 5, 6, 7, & 8. MWD RUNS 1 - 3 ARE DIRECTIONAL ONLY. MWD RUNS 4 - 8 ARE DGWD DIRECTIONAL WITH GAMMA RAY (NGP / SGRD) . THE KICK OFF POINT FOR THE FINAL HOLE, 12-35, IS AT THE CASING SHOE AT 11890' MD. THIS WELL, 12-35 PB1, WAS PLUGGED BACK TO CASING AFTER REACHING TD AT 12330. MD. FILE.HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH GR 10209.0 $ all bit runs merged. STOP DEPTH 12271.0 BASELINE CURVE FOR SHIFTS: GR dated 11-OCT-95 (WALS). CURVE SHIFT DATA (MEASURED DEPTH) BASELINE DEPTH GR 11484.5 11494.0 11488.0 11496.5 11493.5 11502.0 11495.5 11505.5 11550.0 11559.0 11551.5 11561.5 11554.0 11564.0 11627.0 11637.0 11635.0 11645.5 11644.0 11654.5 11677.0 11687.0 11711.0 11719.0 11735.0 11744.0 11752.5 11751.0 11792.0 11810.5 11794.0 11813.5 11803.0 11821.0 11832.0 11839.5 11836.0 11844.5 11840.0 11848.5 11859.5 11869.0 11863.0 11873.0 11868.0 11878.0 11878.5 11889.0 11906.0 11918.5 11929.5 11941.0 11936.5 11948.5 11946.5 11958.5 11951.0 11962.5 11961.0 11973.5 11967.5 11980.0 11973.0 11985.5 11976.5 11989.0 11996.0 12007.5 12011.5 12022.0 12018.5 12028.5 12022.5 12033.0 12025.5 12036.0 12032.0 12042.0 12035.0 12045.5 12044.5 12053.5 12050.5 12058.5 EQUIVALENT UNSHIFTED DEPTH 12100.5 12130.0' 121~8 .'0 12156.0 12159.0 $ MERGED DATA SOURCE PBU TOOL CODE MWD MWD MWD MWD MWD $ REMARKS: 1210%.' . 5 12139.0 12156.0 12167.5 12169.5 BIT RUN NO MERGE TOP 4 10285.0 5 10424.0 6 10539.0 7 11642.0 8 11890.0 MERGE BASE 10424.0 10539.0 11642.0 11890.0 12330.0 MERGED MAIN PASS. ALL CURVES WERE SHIFTED WITH GR. CN WN FN COUN STAT / ? ? SHI FT. OUT $ : ARCO ALASKA INC. : D.S. 12-35 PB1 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 2 ROP MWD 68 1 AAPI 4 1 FPHR 4 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 51 Tape File Start Depth = 12321.000000 Tape File End Depth = 10208.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** ~ep Code: 68 12682~"_atums~ Tape Subfile: 2 193 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape, Subfile 3 is type: LIS FILE,HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 10217.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 10358.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 04-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 10424.0 10285.0 10424.0 0 46.1 47.0 TOOL NUMBER NGP 235 9.875 3543.0 LSND-LT 9.70 37.0 7.9 50O 5.8 .000 .000 .000 .000 .0 137.5 .0 .0 .00 .000 .0 0 CN ,WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12 -35 PB1 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 1 AAPI ROP MWD 68 1 FPHR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 * DATA RECORD (TYPE# 0) Total Data Records: 1014 BYTES * Tape File Start Depth = 10425.000000 Tape File End Depth = 10216.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 1258 datums Tape Subfile: 3 68 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 4 is type: LIS FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 5 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 10358.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 10472.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 05-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 10539.0 10424.0 10539.0 0 46.3 46.3 TOOL NUMBER NGP 66 9.875 3543.0 LSND-LT 9.70 38.0 7.7 600 5.2 .000 .000 .000 .000 .0 124.6 .0 .0 .00 .000 .0 0 CN ,WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12-35 PB1 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) Total Data Records: 1014 BYTES * Tape File Start Depth = 10540.000000 Tape File End Depth = 10350.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 13826 datums Tape Subfile: 4 68 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 5 is type: LIS 'FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 6 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 10473.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): STOP DEPTH 11576.0 07-OCT-95 MSC 1.32 / IBC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 11642.0 10539.0 11642.0 0 47.2 55.1 TOOL NUMBER NGP 235 9.875 3543.0 LSND-LT 9.70 38.0 8.0 5OO 4.8 .000 .000 .000 .000 .0 150.1 .0 .0 .00 .000 .0 0 CN . .WN FN COUN STAT : ARCO ALASKA INC, : D,S, 12-35 PB1 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) Total Data Records: 29 1014 BYTES * Tape File Start Depth = 11655,000000 Tape File End Depth = 10470,000000 Tape File Level Spacing = 0,500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 8372 datums Tape Subfile: 5 92 records,,, Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape SubfiIe 6 is type: LIS FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 7 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 11576.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): STOP DEPTH 11824.0 08-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 11890.0 11642.0 11890.0 0 54.6 57.7 TOOL NUMBER NGP 66 9.875 3543.0 LSND-LT 9.80 39.0 9.0 55O 4.2 .000 .000 .000 .000 .0 145.9 .0 .0 .00 .000 .0 0 'CN' WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12-35 PB1 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) Total Data Records: 1014 BYTES * Tape File Start Depth = 11900.000000 Tape File End Depth = 11575.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 15780 datums Tape Subfile: 6 71 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape ~Subfile 7 is type: LIS 'FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 8 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 11168.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 12281.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GA/KMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 11-0CT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 12330.0 11890.0 12330.0 0 52.6 59.3 TOOL NUMBER NGP 235 6.750 3543.0 LSND-LT 8.90 40.0 12.2 600 6.0 .000 .000 .000 .000 .0 150.1 .0 .0 .00 .000 .0 0 CN· WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12 -35 PB1 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 2 ROP MWD 68 1 AAPI 4 1 FPHR 4 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 28 Tape File Start Depth = 12331.000000 Tape File End Depth = 11165.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 15372 datums Tape Subfile: 7 91 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfiie 8 is type: LIS 95/11/27 01 **** REEL TRAILER **** 95/11/28 01 Tape Subfile: 8 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Tue 28 NOV 95 10:18a Elapsed execution time = 1.31 seconds. SYSTEM RETURN CODE = 0 Tape Subfile 2 is type: LIS TAPE HEADER PRUDHOE BAY UNIT MWD/MAD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN~ 6531.00 F. O'NEILL M. WHITELY D.S. 12-35 500292258800 ARCO ALASKA INC. SPERRY-SUN DRILLING SERVICES 27 -NOV- 95 MWD RUN 5 F. O'NEILL M. WHITELY MWD RUN 6 F. O'NEILL M. WHITELY JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 7 F. O'NEILL M. WHITELY MWD RUN 8 F. O'NEILL M. WHITELY MWD RUN 9 D. VAAGEN M. WHITELY JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 10 D. VAAGEN M. WHITELY MWD RUN 11 B. JAHN M. WHITELY MWD RUN 12 B. JAHN W, WHITELY 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 MWD RUN~ S. LATZ J. RAHL MWD RUN 11 18 10N 15E 348 MWD RUN 12 [CEIVED DEC (,orb. Commi Anchorage ... ICROFILMED 69.60 IS,l . -- - ' 1' s I ' OPEN HOLE CASING DRILLERS 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING REMARKS: BIT SIZE (IN) SIZE (IN) DEPTH (FT) 13.500 10.750 3543.0 9.875 7.625 11890.0 6.750 14222.0 MWD - DGR/EWR4. ALL DEPTHS ARE MEASURED BIT DEPTHS. WELL 12-35 IS REPRESENTED BY MWD RUNS 1, 2, 3, 4, 5, 6, 7, RUN 8 GAMMA RAY (NGP/SGRD) DATA FROM 11824-11890', 9, 10, 11, 12, & 13. THE KICK OFF POINT FOR THIS FINAL HOLE, 12-35, IS AT THE CASING SHOE AT 11890' MD. MWD RUNS 1 - 3 ARE DIRECTIONAL ONLY. MWD RUNS 4 - 8, 11, & 12 ARE DGWD DIRECTIONAL WITH GAMMA RAY (NGP / SGRD) · MWD RUNS 9, 10, & 13 ARE FEWD DIRECTIONAL WITH GAMMA RAY (DGR/SGRC) & EWR4. A GAP IN RATE OF PENETRATION DATA (ROP) EXISTS FROM 11890' - 11900' MD, & FROM 12766' - 12794' MD. GAMMA RAY DATA FROM 11890' - 12557' MD, 12726' - 12746' & FROM 13799' - 14176' MD WAS ACQUIRED WITH GEIGER MUELLER TUBE DETECTORS (DGR/SGRC). ALL OTHER GAMMA RAY DATA IS SCINTILLATION DETECTOR GAMMA RAY DATA (NGP / SGRD) · A MAD PASS WAS PERFORMED WHILE POOH FROM 14195' - 13735' MD AFTER THE WELL REACHED TD AT 14222' MD. FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH GR 10208.0 RP 11860.0 · $ BASELINE CURVE FOR SHIFTS: GR dated 11-OCT-95 CURVE SHIFT DATA (MEASURED DEPTH) BASELINE DEPTH GR 10207.5 10217.0 11484.5 11494.0 11488.0 11496.5 11493.5 11502.0 11495.5 11505.5 11550.0 11559.0 11551.5 11561.5 11554.0 11564.0 11627.0 11637.0 11635.0 11645.5 11644.0 11654.5 11677.0 11687.0 11711.0 11719.0 11735.0 11744.0 11752.5 11751.0 11792.0 11810.5 11794.0 11813.5 11803.0 11821.0 11832.0 11839.5 11836.0 11844.5 11840.0 11848.5 11859.5 11869.0 11863.0 11873.0 11868.0 11878.0 11878.5 11889.0 14211.5 14222.0 $ MERGED PBU MWD MWD MWD MWD MWD MWD MWD MWD MWD $ REMARKS: DATA SOURCE TOOL CODE all bit runs merged. STOP DEPTH 14166.0 14142.0 (WALS) . EQUIVALENT UNSHIFTED DEPTH BIT RUN NO MERGE TOP MERGE BASE 4 10285.0 10424.0 5 10424.0 10539.0 6 10539.0 11642.0 7 11642.0 11890.0 9 11890.0 12193.0 10 12193.0 12601.0 11 12601.0 12767.0 12 12767.0 13845.0 13 13845.0 14222.0 MERGED MAIN PASS. ALL CURVES WERE SHIFTED WITH GR. THE FINAL HOLE ABOVE & BELOW KICK OFF POINT WAS DRILLED DURING MWD RUNS 7 & 9. BUT DUE TO GR TOOL DELAY THE GR FROM MWD 8 WAS USED FROM 11824' - 11890'. CN WN FN COUN STAT /??SHIFT. OUT $ : ARCO ALASKA INC. : D.S. 12 -35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 2 RPX MWD 68 3 RPS MWD 68 4 RPM MWD 68 5 RPD MWD 68 6 ROP MWD 68 7 FET MWD 68 1 ~PI 1 OHMM 1 OHMM 1 OHMM 1 OHMM 1 FPHR 1 HR 4 4 90 310 01 1 4 4 90 120 46 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 12'0 46 1 4 4 90 810 01 4 4 90 180 01 28 * DATA RECORD (TYPE~ 0) 998 BYTES * Total Data Records: 259 Tape File Start Depth = 14213.000000 Tape File End Depth = 10207.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 64105 datums Tape Subfile: 2 406 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 3 is type: LIS FILE HEADER FILE NUMBER: 2 EDITED MERGED MAD Depth shifted and clipped curves; all MAD runs merged using earliest passes. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE GR RP $ MERGED DATA SOURCE PBU TOOL CODE MAD $ REMARKS: CN WN FN COUN STAT START DEPTH 13658.0 13665.0 STOP DEPTH 14119.0 14126.0 MAD RUN NO. MAD PASS NO. MERGE TOP 13 1 13734.0 MERGE BASE 14194.0 MAD PASS RUN WHILE POOH AFTER MWD RUN 13. $ : ARCO ALASKA INC. : D.S. 12-35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MAD 68 1 AAPI 2 RPX MAD 68 1 OHMM 3 RPS MAD 68 1 OHMM 4 RPM MAD 68 1 OHMM 5 RPD MAD 68 1 OHMM 6 RATE MAD 68 1 FPHR 7 FET MAD 68 1 HR 4 4 95 310 01 1 4 4 95 120 46 1 4 4 95 120 46 1 4 4 95 120 46 1 4 4 95 120 46 1 4 4 95 995 99 1 4 4 95 180 01 28 * DATA RECORD (TYPE# 0) 998 BYTES * Total Data Records: 36 Tape File Start Depth = 14200.000000 Tape File End Depth = 13650.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 8809 datums Tape Subfile: 3 60 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 4 is type: LIS FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH NGP 10217.0 10358.0 $ LOG HEADER DATA DATE LOGGED: 04-OCT-95 SOFTWARE SURFACE SOFTWARE VERSION: MSC 1.32 / ISC 2.02 DOWNHOLE SOFTWARE VERSION: NGP 5.74 DEP 2.041 SP4 5.01 DATA TYPE (MEMORY OR REAL-TIME): MEMORY TD DRILLER (FT): 10424.0 TOP LOG INTERVAL (FT): 10285.0 BOTTOM LOG INTERVAL (FT): 10424.0 BIT ROTATING SPEED (RPM): 0 HOLE INCLINATION (DEG) MINIMUM ANGLE: 46.1 MAXIMUM ANGLE: 47.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER NGP NATURAL GAMMA PROBE NGP 235 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): 9.875 DRILLER'S CASING DEPTH (FT): 3543.0 BOREHOLE CONDITIONS MUD TYPE: LSND-LT MUD DENSITY (LB/G): 9.70 MUD VISCOSITY (S): 37.0 MUD PH: 7.9 MUD CHLORIDES (PPM): 500 FLUID LOSS (C3): 5.8 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): .000 .0 MUD AT MAX CIRCULATING TEMPERATURE: .000 137.5 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: .00 HOLE CORRECTION (IN): .000 TOOL STANDOFF (IN) : . 0 EWR FREQUENCY (HZ) : 0 REMARKS: MWD RUN 4. CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12-35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: Tape File Start Depth = 10425.000000 Tape File End Depth = 10216.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 65363 datums Tape Subfile: 4 68 records... Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape Subfile 5 is type: LIS FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 5 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 10358.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 10472.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: MWD RUN 5. 05-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 10539.0 10424.0 10539.0 0 46.3 46.3 TOOL NUMBER NGP 66 9.875 3543.0 LSND-LT 9.70 38.0 7.7 600 5.2 .000 .000 .000 .000 .0 124.6 .0 .0 .00 .000 .0 0 CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12 -35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 4 90 810 01 1 * DATA RECORD (TYPE~ 0) 1014 BYTES * Total Data Records: Tape File Start Depth = 10540.000000 Tape File End Depth = 10350.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 9953 datums Tape Subfile: 5 68 records... Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape Subfile 6 is type: LIS FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 6 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 10473.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 11576.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: MWD RUN 6. 07-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 11642.0 10539.0 11642.0 0 47.2 55.1 TOOL NUMBER NGP 235 9.875 3543.0 LSND-LT 9.70 38.0 8.0 5OO 4.8 .000 .000 .000 .000 .0 150.1 .0 .0 .00 .000 .0 0 CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12 -35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 i FPHR 4 API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 90 310 01 1 4 90 810 01 i * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 29 Tape File Start Depth = 11655.000000 Tape File End Depth = 10470.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 72477 datums Tape Subfile: 6 92 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 7 is type: LIS FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 7 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 11576.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 11824.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN) : EWR FREQUENCY (HZ): REMARKS: MWD RUN 7. 08-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 11890.0 11642.0 11890.0 0 54.6 57.7 TOOL NUMBER NGP 66 9.875 3543.0 LSND-LT 9.80 39.0 9.0 550 4.2 .000 .000 .000 .000 .0 145.9 .0 .0 .00 .000 .0 0 CN WN FN COUN STAT * FORMAT RECORD : ARCO ALASKA INC. : D.S. 12 -35 : PRUDHOE BAY : NORTH SLOPE : ALASKA (TYPE# 64 ) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 1 AAPI ROP MWD 68 1 FPHR * DATA RECORD (TYPE# 0) Total Data Records: API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 8 1014 BYTES * Tape File Start Depth = 11900.000000 Tape File End Depth = 11575.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 11907 datums Tape Subfile: 7 71 records... Minimum record length: Maximum record length: 62 bytes 1014 bytes Tape Subfile 8 is type: LIS FILE HEADER FILE NUMBER: 7 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 8 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 11168.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 12281.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: MWD RUN 8. 11-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 12330.0 11890.0 12330.0 0 52.6 59.3 TOOL NUMBER NGP 235 6.750 3543.0 LSND-LT 8.90 40.0 12.2 600 6.0 .000 .000 .000 .000 .0 150.1 .0 .0 .00 .000 .0 0 CN WN FN COUN STAT GAMMA RAY (NGP/SGRD) FROM 11824-11890' IS THE ONLY DATA FROM RUN 8 USED IN THE FINAL HOLE, 12-35. THE REMAINDER OF THE DATA IS FROM THE PLUG BACK SECTION, 12-35 PB1. $ : ARCO ALASKA INC. : D.S. 12-35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 I AAPI ROP MWD 68 i FPHR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 * DATA RECORD (TYPE# 0) Total Data Records: 28 1014 BYTES * Tape File Start Depth = 12335.000000 Tape File End Depth = 11165.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 79501 datums Tape Subfile: 8 95 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 9 is type: LIS FILE HEADER FILE NUMBER: 8 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 9 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH DGR 11863.0 EWR4 11870.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT) : BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 12157.0 12164.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY EWR4 ELECTROMAG. RESIS. 4 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): 14-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 12193.0 11890.0 12193.0 0 61.0 83.4 TOOL NUMBER P0433SP4 P0433SP4 6.750 11890.0 FLOPRO 8.90 61.0 9.0 42500 6.2 .100 .070 .090 .110 94.0 137.5 94.0 94.0 .00 .000 .0 0 REMARKS: CN WN FN COUN STAT MWD RUN 9. $ : ARCO ALASKA INC. : D.S. 12-35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 1 AAPI 2 RPX MWD 68 I OHMM 3 RPS MWD 68 i OHMM 4 RPM MWD 68 1 OHMM 5 RPD MWD 68 1 OHMM 6 ROP MWD 68 1 FPHR 7 FET MWD 68 i HR 4 4 90 310 01 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 810 01 1 4 4 90 180 01 28 * DATA RECORD (TYPE# 0) 998 BYTES * Total Data Records: 22 Tape File Start Depth = 12200.000000 Tape File End Depth = 11860.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 17356 datums Tape Subfile: 9 87 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 10 is type: LIS FILE HEADER FILE NUMBER: 9 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 10 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH DGR 12150.0 EWR4 12157.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY EWR4 ELECTROMAG. RESIS. 4 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): STOP DEPTH 12558.0 12565.0 16-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 12601.0 12193.0 12601.0 0 85.1 91.4 TOOL NUMBER P0433SP4 P0433SP4 6.750 11890.0 FLOPRO 9.00 63.0 9.5 49000 4.4 .090 .060 .090 .110 84.0 141.7 84.0 84.0 .00 .000 .0 0 REMARKS: CN WN FN COUN STAT MWD RUN 10. $ : ARCO ALASKA INC. : D.S. 12 -35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE~ 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units 1 GR MWD 68 2 RPX MWD 68 3 RPS MWD 68 4 RPM MWD 68~ 5 RPD MWD 68 6 ROP MWD 68 7 FET MWD 68 1 AAPI 1 OHMM 1 OHMM 1 OHMM 1 OHMM 1 FPHR 1 HR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 810 01 4 4 90 180 01 1 28 * DATA RECORD (TYPE# 0) Total Data Records: 30 998 BYTES * Tape File Start Depth = 12605.000000 Tape File End Depth = 12145.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 86870 datums Tape Subfile: 10 95 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 11 is type: LIS FILE HEADER FILE NUMBER: 10 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 11 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 12560.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 12726.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: MWD RUN 11. 16-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 12767.0 12601.0 12767.0 0 87.6 91.8 TOOL NUMBER NGP 184 6.750 11890.0 FLOPRO 9.00 61.0 9.0 42500 6.2 .000 .000, .000 .000 .0 141.0 .0 .0 .00 .000 .0 0 CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12 -35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE~ 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units GR MWD 68 1 AAPI ROP MWD 68 1 FPHR API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 90 310 01 1 4 4 90 810 01 1 8 * DATA RECORD (TYPE# 0) Total Data Records: 1014 BYTES * Tape File Start Depth = 12770.000000 Tape File End Depth = 12555.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 18650 datums Tape Subfile: 11 69 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 12 is type: LIS FILE HEADER FILE NUMBER: 11 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 12 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH NGP 12746.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE NGP NATURAL GAMMA PROBE $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: MWD RUN 12. STOP DEPTH 13799.0 18-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 BP4 5.01 MEMORY 13845.0 12767.0 13845.0 0 86.2 89.4 TOOL NUMBER NGP 184 6.750 11890.0 FLOPRO 8.90 57.0 10.0 30000 4.8 .000 .000 .000 .000 .0 154.3 .0 .0 .00 .000 .0 0 CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12-35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 2 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 1 AAPI 4 2 ROP MWD 68 1 FPHR 4 4 90 310 01 1 4 90 810 01 1 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 27 Tape File Start Depth = 13850.000000 Tape File End Depth = 12740.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 93534 datums Tape Subfile: 12 90 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 13 is type: LIS FILE HEADER FILE NUMBER: 12 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NO: 13 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH DGR 12484.0 EWR4 12490.0 NGP 13784.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 14146.0 14153.0 14176.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY EWR4 ELECTROMAG. RESIS. 4 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): 20-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 14222.0 13845.0 14222.0 0 89.0 89.5 TOOL NUMBER P0433SP4 P0433SP4 6.750 11890.0 FLOPRO 8.90 72.0 9.6 28000 5.0 .140 .066 · 120 .170 68.0 68.0 68.0 68.0 .00 .000 TOOL STANDOFF (IN): .0 EWR FREQUENCY (HZ): REMARKS: MWD RUN 13. THE CURVE "GRD" IS THE GAMMA RAY FROM THE NGP TOOL. $ CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12 -35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 8 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MWD 68 I AAPI 2 RPX MWD 68 1 OHMM 3 RPS MWD 68 1 OHMM 4 RPM MWD 68 1 OHMM 5 RPD MWD 68 i OHMM 6 ROP MWD 68 i FPHR 7 FET MWD 68 i HR 8 GRD MWD 68 i AAPI 4 4 90 310 01 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 120 46 1 4 4 90 810 01 1 4 4 90 180 01 4 4 90 310 01 1 32 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 125 Tape File Start Depth = 14223.000000 Tape File End Depth = 12480.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 50034 datums Tape Subfile: 13 192 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 14 is type: LIS FILE HEADER FILE NUMBER: 13 RAW MAD Curves and log header data for each pass of each run in separate files. MAD RUN NUMBER: 13 MAD PASS NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH DGR 13658.0 EWR4 13665.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY EWR4 ELECTROMAG. RESIS. 4 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TEMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): STOP DEPTH 14119.0 14126.0 20-OCT-95 MSC 1.32 / ISC 2.02 NGP 5.74 DEP 2.041 SP4 5.01 MEMORY 14222.0 13658.0 14222.0 0 89.0 89.5 TOOL NUMBER P0433SP4 P0433SP4 6.750 11890.0 FLOPRO 8.90 72.0 9.6 28000 5.0 · 140 .066 .120 · 170 68.0 68.0 68.0 68.0 .00 .000 TOOL STANDOFF (IN): .0 EWR FREQUENCY (HZ): REMARKS: MAD PASS RUN WHILE POOH AFTER MWD RUN 13. $ CN WN FN COUN STAT : ARCO ALASKA INC. : D.S. 12 -35 : PRUDHOE BAY : NORTH SLOPE : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 7 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MAD 68 1 AAPI 2 RPX MAD 68 1 OHMM 3 RPS MAD 68 1 OHMM 4 RPM MAD 68 1 OHMM 5 RPD MAD 68 1 OHMM 6 SRAT MAD 68 1 FPHR 7 FET MAD 68 1 HR 4 4 95 310 01 4 4 95 120 46 1 4 4 95 120 46 1 4 4 95 120 46 1 4 4 95 120 46 1 4 4 95 810 01 1 4 4 95 180 01 1 28 * DATA RECORD (TYPE# 0) 998 BYTES * Total Data Records: 36 Tape File Start Depth = 14200.000000 Tape File End Depth = 13655.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 102263 datums Tape Subfile: 14 102 records... Minimum record length: 62 bytes Maximum record length: 998 bytes Tape Subfile 15 is type: LIS 95/11/27 01 **** REEL TRAILER **** 95/11/28 01 Tape Subfile: 15 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Tue 28 NOV 95 9:55a Elapsed execution time = 3.35 seconds. SYSTEM RETURN CODE = 0
