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189-102
Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 1400 Anchorage, AK 99503 Phone: (907) 564-4891 06/01/2023 Mr. Mel Rixse Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 Re: Prudhoe Bay Surface Casing by Conductor Annulus Top-offs of Cement, Corrosion Inhibitor through 6/1/2023. Dear Mr. Rixse, Enclosed please find a copy of a spreadsheet with a list of Prudhoe Bay wells that were topped-off with cement, corrosion inhibitor in the surface casing by conductor annulus through 6/1/2023. Cement top-offs are executed as needed to mitigate the void space left at surface by minor cement fallback during the primary surface casing by conductor cement job. The remaining void space between the top of the cement and the top of the conductor is filled with a heavier than water corrosion inhibitor to reduce the risk of external surface casing corrosion. The attached spreadsheets include the well names, API and PTD numbers, treatment dates and volumes. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404 Report of Sundry Operations. If you have any additional questions, please contact me at 564-4891 or oliver.sternicki@hilcorp.com. Sincerely, Oliver Sternicki Well Integrity Supervisor Hilcorp North Slope, LLC Hilcorp North Slope LLC.Surface Casing by Conductor Annulus Cement, Corrosion Inhibitor Top-offReport of Sundry Operations (10-404)06/01/2023Well NamePTD #API #Initial top of cement (ft)Vol. of cement pumped (gal)Final top of cement (ft)Cement top off date Corrosion inhibitor (gal)Corrosion inhibitor/ sealant dateL-2072210815002923702003.371.31/23/2023123/1/2023L-2312230105002923746003.003.0-393/27/2023M-111810575002920589002.602.6-105/29/2023M-311920325002922256001.501.5-165/29/2023M-331941165002922504001.301.3-145/29/2023N-171830095002920898001.201.2-115/30/2023N-18A2081755002920906010.500.5-65/30/2023N-21A1961965002921342011.001.0-85/30/2023N-272071045002923365000.500.5-45/30/2023N-292141105002923521002.302.3-245/30/2023N-31215175500292356000-0--205/30/2023V-2342220045002923707006.3210.91/23/2023243/1/2023W-2412221545002923741002.502.5-263/1/2023Z-121891025002921977000.700.7-45/23/2023Z-34212061500292346900-0--155/27/2023Z-402111735002923462000.700.7-65/27/2023Z-46A2052035002923280010.500.5-35/23/2023Z-502120015002923463000.500.5-35/27/2023Z-662121955002923482000.700.7-85/27/2023Z-116211124500292345500-0--175/27/2023Z-210204181500292322600-0--125/27/2023Z-2292221045002923726003.8361.23/5/2023363/27/20230.700.7-Z-1218910250029219770045/23/2023 MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Tuesday, July 25, 2023 SUBJECT:Mechanical Integrity Tests TO: FROM:Bob Noble P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC Z-12 PRUDHOE BAY UNIT Z-12 Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 07/25/2023 Z-12 50-029-21977-00-00 189-102-0 W SPT 8422 1891020 2106 693 689 688 684 207 211 212 211 4YRTST P Bob Noble 5/12/2023 30 MinPretestInitial15 Min Well Name Type Test Notes: Interval P/F Well Permit Number: Type Inj TVD PTD Test psi API Well Number Inspector Name:PRUDHOE BAY UNIT Z-12 Inspection Date: Tubing OA Packer Depth 324 2346 2264 2241IA 45 Min 60 Min Rel Insp Num: Insp Num:mitRCN230512163149 BBL Pumped:8.8 BBL Returned:8.2 Tuesday, July 25, 2023 Page 1 of 1 MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Reer 6It Z-1 L9 DATE: Monday, June 10, 2019 SUBJECT: Mechanical Integrity Tests P.I. Supervisor % BP EXPLORATION (ALASKA) INC. Z-12 FROM: Jeff Jones PRUDHOEBAY UNITZ-12 Petroleum Inspector Sre: Inspector Reviewed By: P.I. Supry y NON -CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT Z-12 Insp Num: miUJ190531092536 Rel Insp Num: API Well Number 50-029-21977-00-00 Inspector Name: Jeff Jones Permit Number: 189-102-0 Inspection Date: 5/10/2019 Packer Depth — j Well z1z Type Inj 'V D 8422 Tubing PTD 1991020 . iType Tes SPT iTest psi 2106 IA BBL Pumped: 1 n 'BBL Returned: 10 ' OA Interval 4YRTST iP/F P Notes- I well inspected, no exceptions noted. Pretest Initial 15 Min 30 Min 45 Min 60 Min i1>ao -LI 2292 :ono - 2935 2•in) I'U I'2 172 I'3 Monday, June 10, 2019 Page 1 of I MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE: Monday,June 15,2015 TO: Jim Regg � P.I.Supervisor 12e l 1 SUBJECT: Mechanical Integrity Tests BP EXPLORATION(ALASKA)INC Z-12 FROM: Johnnie Hill PRUDHOE BAY UNIT Z-12 Petroleum Inspector Src: Inspector NON-CONFIDENTIAL Well Name PRUDHOE BAY UNIT Z-12 API Well Number 50-029-21977-00-00 Inspector Name: Johnnie Hill Permit Number: 189-102-0 Inspection Date: 5/15/2015 Insp Num: miJWH150516134236 Rel Insp Num: mitop000005329 Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well Z-12 - Type Inj W TVD 8422 - Tubing 1320 1278 7 1262 - 1261 PTD 1891020 " Type Test SPT Test psi 2106 IA 263 2512 2434 - 2409 - Interval Four Year Cycle P/F Pass ✓ OA 218 220 . 221 221 _ Notes: 8.5 bbls of diesel t1E© }�I .g �`I Sati Monday,June 15,2015 Page 1 of 1 2Q2011 Not Operable Injector Re. • Page 1 of Z' /\ Maunder, Thomas E (DOA) From: AK, D &C Well Integrity Coordinator [ AKDCWeIIIntegrityCoordinator @bp.com] Sent: Monday, July 04, 2011 4:44 PM To: AK, D &C Well Integrity Coordinator; Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); Brooks, Phoebe L (DOA) Cc: AK, OPS GC1 OSM; AK, OPS FS1 OSM; AK, OPS Area Mgr North (Gas Plants GPMA); AK, OPS GC2 OSM; AK, OPS FS1 DS Ops Lead; AK, OPS FS1 Facility OTL; AK, OPS FS2 DS Ops Lead; AK, OPS FS2 Facility OTL; AK, OPS FS3 DS Ops Lead; AK, OPS FS3 Facility OTL; AK, OPS GC1 Facility OTL; AK, OPS GC1 Wellpad Lead; AK, OPS GC2 Facility OTL; AK, OPS GC2 Wellpad Lead; AK, OPS GC3 Facility & Field OTL; AK, OPS GC3 Wellpad Lead; AK, OPS GPMA Facility OTL; AK, OPS LPC DS Ops Lead; AK, OPS Ops Supt; Kurz, John; AK, OPS MPU OSM; AK, OPS MPU Field Lead Tech; AK, OPS MPU Field Ops TL; AK, OPS MPU Well Ops Coord; AK, OPS MPU Wells Ops Coord 2; AK, OPS Nstar Lead Tech; AK, OPS Nstar OIM; AK, OPS Nstar O &M TL; AK, RES END Production Optimization Engineer; Kruger, Dale 0 Subject: 2Q2011 Not Operable Injector Report Attachments: Not Operable Injector Report 2Q2011.zip Tom, Jim, Phoebe and Guy, Attached is the 2Q 2011 Injection Report for GPB, GPMA, Northstar, Milne Point and Endicott injectors classified as Not Operable. «Not Operable Injector Report 2Q2011.zip» Notes on wells: 41 ,fX JUL `1 ) 2CM Removed from Quarterly Injection Report: 13 -09 (PTD #1811580): RWO repaired TxIA comm. On 04/30/11 END 3- 43/P -36 (PTD #1931700): Surface casing leak repaired with Brink platelets on 05/17/11 LGI -08 (PTD #1860570): Not Operable Producer that had been mismarked in BP system as a not operable injector thereby being generated to report MPF -92 (PTD #1981930): SI waiting for AOGCC MIT -IA that passed an AOGCC MIT -IA on 04/17/11 MPF -95 (PTD #1981790): SI waiting for AOGCC MIT -IA that passed an AOGCC MIT -IA on 04/17/11 P2 -16 (PTD #1931230): RWO repaired PC leak and TxIA comm. On 04/15/11 U -10 (PTD #1851970): TxIA comm. That was repaired with a tubing patch on 06/05/2011. Moved to Monthly Injector report pending AOGCC witnessed test WGI -06 (PTD #1900300): RWO repaired TxIA comm. Well moved to Monthly Injector report pending AA cance - • -12 (PTD #1891020): TxIA ommunication repaired with cement packer on 05/24/11. Added to Quarterly Injection Report: L -223 (PTD #2090990): MIT -IA failed on 05/01/11. MPS -07 (PTD #2020720): MIT -IA failed on 04/09/11 MPS -13 (PTD #2021140): Passed MIT -IA on 04/11/11. LTSI that requires AOGCC MIT -IA when put on production. V -227 (PTD #2091160): Exhibiting rapid IA repressurization. Classified as Not Operable on 06/20/11. 7/5/2011 OPERABLE: Injector Z -12 (PTD #1891020) Passing AOGCC MIT -IA Page 1 of 3A • Maunder, Thomas E (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWelllntegrityCoordinator @bp.com] Sent: Wednesday, June 22, 2011 1:17 PM To: Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, OPS Well Pad Z; Brooks, Phoebe L (DOA); Daniel, Ryan Cc: King, Whitney; Kirchner, Carolyn J; Arend, Jon (NORTHERN SOLUTIONS LLC) Subject: OPERABLE: Injector Z -12 (PTD #1891020) Passing AOGCC MIT -IA Attachments: MIT PBU Z -12 06- 18- 11.xls All, Injector Z -12 (PTD #1891020) passed an AOGCC witnessed MIT -IA with the well on water injection. The passing MIT -IA verifies two competent barriers and the well is being reclassified as Operable. This well is part of a tracer injection program and is expected to remain on water injection for approximately one year. Prior to swapping this well to MI please inform the Well Integrity Coordinator so appropriate notifications can be made to AOGCC and TIO data submitted. «MIT PBU Z -12 06- 18- 11.xis» Thank you, Mehreen Vazir , (Alternate: herald Murphy) JUL E , �� 1 Well Integrity Coordinator BP Alaska Drilling & Wells Well Integrity Office: 907.659.5102 Email: AKDCWelllntegrityCoordinator @BP.com • m: AK, D &C Well Integrity Coordinator • Sent: ursday, June 09, 2011 8:51 PM To: 'Mauna = Thomas E (DOA)'; 'Regg, James B (DOA)'; 'Schwartz, Guy L (DOA)'; AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; AK, I. • Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operation -am Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Well Pad Z; 'Brooks, Phoebe L (DOA) Cc: AK, D &C Well Integrity Coordinato , ' alker, Greg (D &C); Kirchner, Carolyn J Subject: UNDER EVALUATION: Injector Z- • D #1891020) Tubing Integrity Repaired with Cement Packer All, Injector Z -12 (PTD #1891020) passed a MIT -IA to 3600 p in 06/08/2011. A packer leak was identified with a leak detect log on 112/15/2010. The packer was repaired with - ement packer squeeze on 5/24/2011. The well is reclassified as Under Evaluation to begin water injection. A cop , the MIT -IA and wellbore schematic are included for reference. 6/30/2011 STATE OF ALASKA ALASKA WAND GAS CONSERVATION COMMISSIO110 REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon ❑ Repair Well ❑ Plug Perforations ❑ Stimulate Other 0 Performed: Alter Casing ❑ Pull Tubing ❑ Perforate New Pool ❑ WaiverD Time Extension ❑ Change Approved Program ❑ Operat. Shutdown ❑ Perforate ❑ Re -enter Suspended Well ❑CEMENT PKR SQZ 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: 5. Permit to Drill Number: Name: Development ❑ Exploratory ❑ - 189 -102 3. Address: P.O. Box 196612 Stratigraphic❑ Service 0 6. API Number: Anchorage, AK 99519 -6612 --50- 029 - 21977 -00 -00 8. Property Designation (Lease Number) : 9. Well Name and Number: ADLO- 047453 _ PBU Z -12 10. Field /Pool(s): PRUDHOE BAY FIELD / PRUDHOE BAY POOL 11. Present Well Condition Summary: Total Depth measured 11580 feet Plugs (measured) 11301 TOC feet true vertical 9199 feet Junk (measured) 11297 feet Effective Depth measured 11458 feet Packer (measured) 10365 feet true vertical 9126 feet (true vertical) 8422 feet Casing Length Size MD TVD Burst Collapse Structural Conductor 80' 20 ", 91.5 #, H-40 37 - 117 37 - 117 1490 470 Surface 2622' 13 -3/8 ", 68 #, L -80 36 - 2658 36 - 2658 5020 2260 Production 10732' 9 -5/8 ", 47 #, NT -80S 35 - 10767 35 - 8687 6870 4760 Liner 1102' 5 -1/2", 17 #, L -80 10478 - 11580 8496 - 9199 7740 6280 Liner Liner JUN � 4 j w� ry (l 20 1 Perforation depth: Measured depth: SEE ATTACHED - z_ JU as True Vertical depth: _ tiViNED _ - Tubing: (size, grade, measured and true vertical depth) 4 -1/2" 12.6# L -80 33 - 10478 8496 Packers and SSSV (type, measured and true vertical depth) 4 -1/2" Baker S -3 Perm Packer J le 8422 REEL ' }E 12. Stimulation or cement squeeze summary: ; 'I.1 Intervals treated (measured): `( r `' }' Treatment descriptions including volumes used and final pressure: A'yl*a Gil & C=$, Cats. C' (sitnOSSIOf 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing pressure Prior to well operation: 4785 1260 Subsequent to operation: 2755 1191 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory Development ❑ Service' El Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: _ Oil ❑ Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAGE! GINJ ❑ SUSP❑ SPLUG ❑ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: 311 -112 Contact Elizabeth Barker Printed Name Elizabeth Barker Title Data Manager Signature /, / 4E Phone 907 564 -5674 Date 6/21/2011 Form 10 -404 Revised 10/2010 RBDMS JUN 2 4 2011 ht . G • Submit Original Only Z -12 189 -102 PERF ATTACHMENT Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base Z -12 11/3/89 PER 11,250. 11,280. 9,000.55 9,019.11 Z -12 11/3/89 PER 11,290. 11,300. 9,025.26 9,031.39 Z -12 11/3/89 PER 11,314. 11,338. 9,039.95 9,054.55 Z -12 8/6/93 APF 11,190. 11,206. 8,962.98 8,973.06 Z -12 5/7/94 APF 11,238. 11,250. 8,993.09 9,000.55 Z -12 5/7/94 APF 11,216. 11,228. 8,979.34 8,986.85 Z -12 5/7/94 APF 11,178. 11,190. 8,955.39 8,962.98 Z -12 7/10/94 APF 11,143. 11,156. 8,933.13 8,941.43 Z -12 7/10/94 APF 11,161. 11,172. 8,944.61 8,951.59 Z -12 1/7/02 FIL 11,335. 11,458. 9,052.73 9,126.3 Z -12 12/21/04 APF 11,096. 11,134. 8,902.93 8,927.38 Z -12 4/9/05 APF 11,049. 11,069. 8,872.44 8,885.45 • Z -12 6/22/06 BPS 10,463. 11,338. 8,486.34 9,054.55 Z -12 9/7/06 BPP 10,463. 11,338. 8,486.34 9,054.55 Z -12 12/6/06 FCO 11,335. 11,440. 9,052.73 9,115.59 Z -12 11/7/10 BPS 11,301. 11,440. 9,032.01 9,115.59 Z -12 12/11/10 BPS 10,452. 10,453. 8,479.16 8,479.81 Z -12 5/5/11 BPP 10,452. 10,453. 8,479.16 8,479.81 Z -12 5/12/11 BPS 10,519. 11,338. 8,522.87 9,054.55 Z -12 5/15/11 BPP 10,519. 11,338. 8,522.87 9,054.55 Z -12 5/22/11 BPS 10,375. 11,338. 8,428.74 9,054.55 Z -12 5/24/11 SQZ 10,100. 11,338. 8,245.83 9,054.55 Z -12 5/25/11 BPP 10,375. 11,338. 8,428.74 9,054.55 AB ABANDONED PER PERF APF ADD PERF RPF REPERF • BPP BRIDGE PLUG PULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE • . • Z -12 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 5/24/2011, CT -8 1.75" Scope of Work: Pkr Squeeze & drill out Plug. 'Wait on well prep. MIRU. RIH w/ 2.5" BDN w/o circ taking returns to OTT. Tag composite plug on depth at 10375'. Verify IA has no gas. SWS cementers mix 10.0 bbls 15.8 DM G cement and lay cement in from PBD to WCTOC at 9725'. Dilute cement to PBD w/ 3# biozan, then clean out to 10100'. POOH jetting ;wellbore clean. IA S/I w/760 psi. Pop off WH. Wait on cement. «« «JOB IN PROGRESS » »> 5/24/2011 ** *Job continued from 23 May 11 WSR * ** Circ Well (pre cement squeeze) Pumped 5 bbls meth, 293 bbls 1% KCL, 585 bbls diesel and 120 bbls 1% corrosion inhibited KCL down TBG and up IA of Z -12 and down flown line of Z- 13. Pumped 40 bbls diesel down TBG for freeze protect. FWHP= 100/300/180 5/25/2011 ' CT -8 1.75" Scope of work: Cmt IA, drill out plug. MU BOT milling assembly, RIH. MIT -IA, 1600 psi. Drill out cmt & CBP /push to bottom 11297'. POOH FP to 2500'. Job is complete. RDMO. 5/29/2011 T /I /O= 0/10/160, Temp =S /I, MIT -IA to 4000 psi (Post Cement Squeeze) Attempt Pressure test. * **WSR Continued on 30May2011 * ** . • 5/30/2011 * * *WSR Continued from 29May2011 * ** MIT -IA FAILED to 4000 psi (3rd test)(Post Cement Squeeze) Pressured up IA with 14.5 bbls of diesel to reach . 4000 psi. MIT -IA lost 140 psi in 1st 15 minutes and 100 psi in 2nds 15 minutes for a total of 240 psi in a 30 minute test. Ran test extra per Fullbore, 3rd 15 min loss 100 psi, 4th 15 min Toss 80 psi, 5th 15 min loss 80 psi, 6th 15 min Toss 80 'psi.Bled IAP. FWHP's= 0/50/160. Pad Op notified of well condition on departure. 6/8/2011 T /I /O= VAC/250/150, Temp =SI. PPPOT-T (PASS), PPPOT -IC (PASS), pre MIT- IA. 'PPPOT-T: Stung into test port (0+ psi), bled to 0 psi. Pumped through void, good returns. Pressured void to 5000 psi for 30 min test, lost 150 psi in 15 min, lost 0 psi in second 15 min (PASS). Bled void to 0 psi. PPPOT -IC: Stung into test port (50 psi), bled to 0 psi. Pumped through void, good returns. Pressured void to 3500 psi for 30 min test, lost 50 psi in 15 min, lost 0 psi in second 15 min (PASS). Bled void to 0 psi. 6/8/2011:T/I/0 = Vac/252/123. Temp = SI. MIT -IA PASSED to 3750 psi, LLR if fails (Post. ;packer squeeze). WAG (water). IA FL @ surface. Used 11.87 bbls methanol to pressure IA to 3750 psi. 1st 15 min IA lost 102 psi & 2nd 15 min IA lost 30 psi. For a total loss of 132 psi in a 30 min test. Bled IAP to 320 psi. Data recorded on crystal gauge. FWHP's = Vac/320/124. Job Complete. 'SV, WV = C, SSV, MV = 0. IA, OA = OTG. 6/12/2011 Open permit, pre -job safety mtg, spot equip, RU, press test to 2500 psi, mix and inject 45 kgs of T -190c Tracerco chemical salt. Flush lines w/ 10 gals fresh water, 2 gals diesel, RD, secure well and location. 6/18/2011T/1/0=1480/1570/200 (MIT -IA to 2500 AOGCC) PASS Pumped 3 bbs meth down IA to reach test pressure. Loss of 60 psi in the first 15 mins, Toss of 10 psi second 15 mins. MV -WV -SSV =open IA/OA =OTG • • FLUIDS PUMPED BBLS 5.5 FRESH WATER 8 METH 293 1 %KCL 120 1% KCL Corrosion Inhibited 240 1% XS KCL 580 2% XS KCL 10 CEMENT 688.5 DIESEL 5 BIOZAN 1950 TOTAL r TREE = 3-1/8" MCEVOY WELLHEAD = FMC • SAFETY NO41 WELL REQUIRES A SSSV WHEN Z-1 ( ONMI. ACTUATOR= BAKER , KB. ELEV = 91.7' BF. ELEV 55.74' KOP = 3600' Max Angle = 49 @ 11100' Datum MD = 11079' Datum TVD = 8800' SS ' ' I 2104' 1 HES X NIP, ID = 3.813" I 13 -3/8" CSG, 68 #, L -80, ID = 12.415" I - 1 2658' Pc i Minimum ID = 3.725" @ 10452' 4-1/2" HES XN NIP �� ••. 1 10193' - 10353' (--I CEMENT PACKER (05 /25/11) I �� � 10345' I- 14 -1/2" HES X NIP, ID = 3.813" •• I 3!•. 10349' - 10353' I— ITUBING PUNCH, 4 SPF (5/23/11) I z 10365' H9 -5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.87" I 1 1 I 10390' H4 -1/2" HES X NIP, ID = 3.813" I ' ' I 10452' 1 - 112" HES XN NIP, ID = 3.725" I 4 -1/2" TBG, 12.6 #, L -80 TCII, — 10478' .0152 bpf, ID = 3.958" ITOP OF 5 -1/2" LNR I—I 10478' ( 10478' H4 -112" MULE SHOE, ID = 3.958" I 1 10499' I — I ELMD TT LOGGED (09/07/06) 1 19 -5/8" CSG, 47 #, NT -80S, ID = 8.681" I--I 10767' I A PERFORATION SUMMARY REF LOG: CBT ON 11/3/89 I 11087' I - 1 MARKER JOIN' 1 ANGLE AT TOP PERF: 49 @ 11049' Note: Refer to Production DB for historical perf data I SIZE SPF INTERVAL Opn /Sqz DATE 2-1/4" 6 11049 - 11069 0 04/09/05 2 -1/8" 6 11096 -11134 0 12/21/04 I 11218' I_I MARKER JOINT 1 2 -1/8" 6 11143 - 11156 0 07/10/94 2 -1/8" 6 11161 - 11172 0 07/10/94 2 -1/8" 6 11178 - 11190 0 07/10/94 2 -5/8" 4 11190 - 11206 0 07/10/94 11297' CTM I-I FISH - MILLED OBSIDIAN CBP (5/25/11) 1 2 -1/8" 6 11216 - 11228 0 07/10/94 i 2-1/8" 6 11238 - 11250 0 07/10/94 . '' 11301' I — I EST TOP OF CEMENT (11/07/10) I 3 -3/8" 4 11250 - 11280 0 07/10/94 �'�� 11311' I — I 1-11/16" POSISET PLUG (11/07/10) I 3 -3/8" 4 11290 - 11300 0 07/10/94 I 3 -3/8" 4 11314 - 11338 0 07/10/94 L11440' I — I FILL (CT TAGGED 11/23/06)) 1 I PBTD I — I 11458' I 10004 5 -1/2" LNR, 17 #, L -80, .0232 bpf, ID = 4.892" I—I 11580' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 11/09/89 ORIGINAL COMPLETION 05/06/11 TAR/ PJC PULL PXN PLUG (05/05/11) WELL: Z -12 07/07/06 N7ES RWO 05/15/11 KSB/ PJC SET IBP (5/12/11) PERMIT No: x 1891020 05/30/09 CJN/TLH TBG DEPTH CORRECTION 05/21/11 MSS/ PJC PULL IBP (5/15/11) API No: 50- 029 - 21977 -00 11/16/10 RRW /PJC SET POSISET /CMT (11/07/10) 06/02/11 SRD/ PJC COM PLUG/ TBG PUNCH (5/23/11) SEC 19, T11N, R12E, 981' FNL & 3494' FEL 12/12/10 SWC/PJC SET PXN (12/11/10) 06/02/11 PBS/ PJC MILL CB PLUG/ CMT IA (5/25/11) 02/16/11 MB /JMD ADDED SSSV SAFETY NOTE I BP Exploration (Alaska) • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE: Wednesday, June 22, 2011 TO: gg ) plm Superv i sor ke - , 2(73 SUBJECT: Mechanical Integrity Tests BP EXPLORATION (ALASKA) INC Z -12 FROM: Bob Noble PRUDHOE BAY UNIT Z -12 Petroleum Inspector Src: Inspector Reviewed By: P.I. Supry -- NON CONFIDENTIAL Comm Well Name: PRUDHOE BAY UNIT Z - 12 API Well Number: 50 029 - 21977 - 00 - 00 Inspector Name: Bob Noble Insp Num: mitRCN110621183548 Permit Number: 189 - 102 - Inspection Date: 6/18/2011 Rel Insp Num: Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well Z -12 • [Type Inj. W' TVD `- 8422 • IA 1570 2500 - 2440 2430 - P.T.D 1891020 • TypeTest SPT Test psi 1 2500 • OA 200 200 200 200 Interval OTHER • p/F P - Tubing 1480 1480 1480 1480 Notes: Post Packer Squeeze - A. to f -le s+ 2• ( 0 5 n 'r # JUN 2 4 Z.011 Wednesday, June 22, 2011 Page 1 of 1 UNDER EVALUATION: Injector Z -12 (PTD #1891020) Tubing Integrity Repaired with ... Page 1 of A Maunder, Thomas E (DOA) From: AK, D &C Well Integrity Coordinator [ AKDCWellIntegrityCoordinator @bp.com] Sent: Thursday, June 09, 2011 8:51 PM To: Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Well Pad Z; Brooks, Phoebe L (DOA) Cc: AK, D &C Well Integrity Coordinator; Walker, Greg (D &C); Kirchner, Carolyn J Subject: UNDER EVALUATION: Injector Z -12 (PTD #1891020) Tubing Integrity Repaired with Cement Packer Attachments: MIT PBU Z -12 06- 08- 2011.xls; Z -12 (PTD #1891020) welibore schematic.pdf All, Injector Z -12 (PTD #1891020) passed a MIT -IA to 3600 psi on 06/08/2011. A packer leak was identified with a leak detect log on 112/15/2010. The packer was repaired with a cement packer squeeze on 5/24/2011. The well is reclassified as Under Evaluation to begin water injection. A copy of the MIT -IA and welibore schematic are included for reference. «MIT PBU Z -12 06- 08- 2011.xis» «Z -12 (PTD #1891020) welibore schematic.pdf» Tentative plan forward: 1. Operations: Begin produced water injection 2. Fullbore: AOGCC MIT -IA once well is thermally stable 3. WIC: Notify the AOGCC prior to first cycle of M -I injection 4. WIC: Monitor T /I /O plot while on M -I and notify AOGCC after 14 days on injection Please call if you have questions or concerns. Thank you, Gerald Murphy (alt. Mehreen Vazir) Well Integrity Coordinator Office (907) 659 -5102 Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 ..' JUN . '7 201', From: AK, D &C Well Integrity Coordinator Sent: Monday, December 13, 2010 1:45 PM To: 'Maunder, Thomas E (DOA) ; 'Regg, James B (DOA) ; 'Schwartz, Guy L (DOA) ; AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr Cc: AK, D &C Well Integrity Coordinator; King, Whitney; Quy, Tiffany; Kirchner, Carolyn J Subject: NOT OPERABLE: Injector Z -12 (PTD #1891020) Secured with Downhole Plug 6/17/2011 • • STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION Mechanical Integrity Test Submit to: jim.rega8alaska.gov; doa. aogcc.prudhoe.bayttbalaska.00v; phoebe.brooks(rDalaska.gov, tom.maunderaalaska.aov OPERATOR: BP Exploration (Alaska), Inc. FIELD / UNIT / PAD: Prudhoe Bay / PBU/ Z Pad DATE: 06/08/11 OPERATOR REP: Gerald Murphy AOGCC REP: Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well Z -12 Type Inj. N TVD 8,427 Tubing 0 0 0 0 Interval O P.T.D._1891020 _ Type test P Test psi 2105.5 Casing 252 3750 ' 3648 3618 P/F P Notes: Passing cold MIT -IA post cement packer squeeze OA 123 127 127 127 11.8 bbls of methanol umped Well Type Inj. TVD Tubing Interval P.T.D. Type test Test psi Casing P/F Notes: OA Well Type Inj. TVD Tubing Interval P.T.D. Type test Test psi Casing P/F Notes: OA Wet Type Inj. TVD Tubing Interval P.T.D. Type test Test psi Casing P/F Notes: OA Well Type Inj. TVD Tubing Interval P.T.D. Type test _ Test psi Casing P/F Notes: OA TYPE INJ Codes TYPE TEST Codes INTERVAL Codes D = Drilling Waste M = Annulus Monitoring I = Initial Test G = Gas P = Standard Pressure Test 4 = Four Year Cycle 1= Industrial Wastewater R = Internal Radioactive Tracer Survey V = Required by Variance N = Not Injecting A = Temperature Anomaly Survey T = Test during Workover W = Water D = Differential Temperature Test 0 = Other (describe in notes) Form 10-426 (Revised 06/2010) MIT PBU Z - 12 06 TREE = 3-1/8" MCEVOY • WELLHEAD = FMC • Z 2 SA E Y N. WELL REQUIRES A SSSV WHEN ON ACTUATOR= BAKER , KB. ELEV = 91.7' BF. ELEV = 55.74' KOP = 3600' Max Angle = 49 @ 11100' Datum MD = 11079' Datum TVD = 8800' SS 1 2104' H4-1/2" HES X NIP, ID = 3.813" I 13 -3/8" CSG, 68 #, L -80, ID = 12.415" I—I 2658' Minimum ID = 3.725" @ 10452' 4-1/2" HES XN NIP • • V • 10193' - 10353' H CEMENT PACKER (05/25/11) ••• • ►..A 10345' H 4 -1 /2" HES X NIP, ID = 3.813" I •• • • • 4: � %�I I %� 10349' - 10353' H TUBING PUNCH, 4 SPF (5/23/11) I M4 I 10365' H9-5/8" X 4-1/2" BKR S-3 PKR, D= 3.87" I 1 10390' I— I4 -1/2" HES X NP, ID = 3.813" I ' I 10452' H4-1/2" HES XN NIP, ID = 3.725" I 4 -1/2" TBG, 12.6#, L -80 TCII, -1 10478' .0152 bpf, ID = 3.958" I TOP OF 5-1/2" LNR H 10478' I 10478' 1-14-1/2" MULE SHOE, ID = 3.958" I I 10499' I—I ELMD TT LOGGED (09107/06) 1 19 -5/8" CSG, 47 #, NT -80S, ID = 8.681" IH 10767' I • PERFORATION SUMMARY I REF LOG: CBT ON 11/3/89 1 11087' I-1 MARKER JOINT 1 ANGLE AT TOP PERF: 49 @ 11049' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn /Sqz DATE 2 -1/4" 6 11049 - 11069 0 04/09/05 2-1/8" 6 11096 - 11134 0 12/21/04 I 11218' I—I MARKER JOINT 1 2 -1/8" 6 11143 - 11156 0 07/10/94 2 -1/8" 6 11161 - 11172 0 07/10/94 2 -1/8" 6 11178 - 11190 0 07/10/94 2 -5/8" 4 11190 - 11206 0 07/10/94 11297' CTM I—I FISH - MILLED OBSIDIAN CBP (5/25/11) I 2 -1/8" 6 11216 - 11228 0 07/10/94 pp 2 -1/8" 6 11238 - 11250 0 07/10/94 . ' 11301' J—I EST TOP OF CEMENT (11/07/10) 1 3 -3/8" 4 11250 - 11280 0 07/10/94 �..°�.•'A I 11311' I--I1- 11/16" POSISET PLUG (11 /07110) 1 3 -3/8" 4 11290 - 11300 0 07/10/94 3 -3/8" 4 11314 - 11338 0 07/10/94 I 11440' H FILL (CT TAGGED 11/23/06)) I PBTD H I 11458' l 01.6.."1"0. .40 5-1/2" LNR, 17 #, L -80, .0232 bpf, ID = 4.892" H 11580' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 11/09/89 ORIGINAL COMPLETION 05/06/11 TAR/ PJC PULL PXN PLUG (05/05/11) WELL: Z -12 07/07/06 N7ES RWO 05/15/11 KSB/ PJC SET BP (5/12/11) PERMIT No: 1891020 05/30/09 CJN/TLH TBG DEPTH CORRECTION 05/21/11 MSS/ PJC PULL IBP (5/15/11) API No: 50- 029 - 21977 -00 11/16/10 RRW /PJC SET POSISET /CMT (11/07/10) 06/02/11 SRD! PJC COM PLUG / TBG PUNCH (5/23/11) SEC 19, T11 N, R12E, 981' FNL & 3494' FEL 12/12/10 SWC/PJC SET PXN (12/11/10) 06/02/11 PBS/ PJC MILL CB PLUG/ CMT IA (5/25/11) 02/16/11 MB /JMD ADDED SSSV SAFETY NOTE I BP Exploration (Alaska) • • SIM ALASIKKA SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W. 7th AVENUE, SUITE 100 CONSERVATION COMMISSION ANCHORAGE, ALASKA 99501 -3539 PHONE (907) 279 -1433 FAX (907) 276-7542 Carolyn Kirchner d' Petroleum Engineer BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519 -6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Z -12 Sundry Number: 311 -112 Dear Ms. Kirchner: s APP 82i36 Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, Daniel T. Seamount, Jr. rk. Chair DATED this 0 day of April, 2011. Encl. . (#11k STATE OF ALASKA f 1I J ALASKA. AND GAS CONSERVATION COMMISSI. 4 0' APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 1. Type of Request: Abandon ❑ Plug for Redrill ❑ Perforate New Pool ❑ Repair Well ❑ Change Approved Program ❑ Suspend ❑ Plug Perforations ❑ Perforate❑ Pull Tubing ❑ Time Extension ❑ Operation Shutdown ❑ Re -enter Susp. Well ❑ Stimulate Alter Casing ❑ Other: CEMENT PACKER SQUEEZE El - 2. Operator Name: 4. Current Well Class: 5. Permit to Drill Number: BP Exploration (Alaska), Inc. Development ❑ Exploratory ❑ 189 -1020- 3. Address: P.O. Box 196612 Stratigraphic ❑ Service El . 6. API Number: Anchorage, AK 99519 -6612 50- 029 - 21977 -00 -00 - 7. If perforating, closest approach in pool(s) opened by this operation to nearest 8. Well Name and Number: property Tine where ownership or landownership changes: Spacing Exception Required? Yes ❑ No ❑ PBU Z-12 - 9. Property Designation (Lease Number): 10. Field / Pool(s): ADLO- 047453 - PRUDHOE BAY Field / PRUDHOE BAY Pool - 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 11580 , 9198.9 - 11458 9126.3 10452, 11301 TOC NONE Casing Length Size MD TVD Burst Collapse Structural Conductor 20" 91.5# H-40 37 117 37 117 1490 470 Surface 13 -3/8" 68# L -80 36 2658 36 2658 4930 2270 Production 9 -5/8" 47# NT -80S 35 10767 35 8687 6870 4760 Liner 5 -1/2" 17# L -80 10478 11580 8496 9199 7740 6280 Liner Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubing Size: Tubing Grade: Tubing MD (ft): SEE ATTACHED - - 4 -1/2" 12.6# L -80 33 10478 Packers and SSSV Type: 4 -1/2" BKR S -3 PKR Packers and SSSV MD and TVD (ft): 10365 8422 12. Attachments: Description Summary of Proposal 0 13. Well Class after proposed work: Detailed Operations Program ❑ BOP Sketch ❑ Exploratory ❑ Development ❑ Service El - 14. Estimated Date for 15. Well Status after proposed work: Commencing Operations: 4/18/2011 Oil Gas ❑ WDSPL ❑ Suspended ❑ 16. Verbal Approval: Date: WINJ ❑ GINJ ❑ WAG IS - Abandoned ❑ Commission Representative: GSTOR ❑ SPLUG ❑ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Carolyn Kirchner Printed Name Carolyn Kirchner Title PE Signature ' ,, P ho a Date ��J f �i J� f'�� 4/4/2011 Prepared by Joe Lastufka 564 -4091 l COMA1t551ON USE ONLY Conditions of approval: Notify Commission so that a representative may witness Sundry Number: 3' ` , `j Plug Integrity ❑ BOP Test ❑ Mechanical Integrity Test Location Clearance ❑ RECEIVED Other: APR 0 4 2011 Alaska ai & Gas Cans. Commission Subsequent Form Required: /f • 4/0 5L srtrnaCage APPROVED BY ii-i4/1/ / Approved by: - , COMMISSIONER THE COMMISSION Date: ElL1AAS APR lid ZO1 0R1G1NAL y .�. `r y/ Form 10 -403 Revised 1/2010 Submit in Duplicate Z -12 189 -102 . PERF ATTACHMENT Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base Z -12 11/3/89 PER 11,250. 11,280. 9,000.55 9,019.11 Z -12 11/3/89 PER 11,290. 11,300. 9,025.26 9,031.39 Z -12 11/3/89 PER 11,314. 11,338. 9,039.95 9,054.55 Z -12 8/6/93 APF 11,190. 11,206. 8,962.98 8,973.06 Z -12 5/7/94 APF 11,178. 11,190. 8,955.39 8,962.98 Z -12 5/7/94 APF 11,216. 11,228. 8,979.34 8,986.85 Z -12 5/7/94 APF 11,238. 11,250. 8,993.09 9,000.55 Z -12 7/10/94 APF 11,161. 11,172. 8,944.61 8,951.59 Z -12 7/10/94 APF 11,143. 11,156. 8,933.13 8,941.43 Z -12 1/7/02 FIL 11,335. 11,458. 9,052.73 9,126.3 Z -12 12/21/04 APF 11,096. 11,134. 8,902.93 8,927.38 Z -12 4/9/05 APF 11,049. 11,069. 8,872.44 8,885.45 • Z -12 6/22/06 BPS 10,463. 11,338. 8,486.34 9,054.55 Z -12 9/7/06 BPP 10,463. 11,338. 8,486.34 9,054.55 Z -12 12/6/06 FCO 11,335. 11,440. 9,052.73 9,115.59 Z -12 11/7/10 BPS 11,301. 11,440. 9,032.01 9,115.59 Z -12 12/11/10 BPS 10,452. 10,453. 8,479.16 8,479.81 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG PULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE • • • Memorandum To: Tyler Noreme /Clark Olsen Date: March 8, 2011 GPB Well Ops Team Leaders From: Carolyn Kirchner Code: APBZPDWL12 Petroleum Engineer Subject: Z -12i Packer Squeeze AAIOR: 250 Est. Cost: Please perform the following procedure: 1 S Pull TTP and drift for IBP. 2 E Set IBP in liner. 3 F CMIT -TxIA to 4000 psi. 4 S Pull IBP. Drift for composite plug. 5 E Set composite, MIT -T to 2500 psi, punch tubing above packer 6 F Circulate well. 7 C Packer Squeeze. Pressure up on Tbg & IA. Mill plug. 8 F WOC 3 days and perform MIT -IA to 4000 psi. Current Status: Inoperable WAG injector — SI with PXN plug in XN profile at 10446' MD Last Test: 12/10/10 4500 bwpd, 1250 psi Max Deviation: 49 deg @ 11,100' MD Perf Deviation: 49 deg © 11,059' MD Minimum ID: 3.725" © 10,452' 4-1/2" HES XN Nipple Last Downhole Op: 12/15/11 LDL Last Drift: 11/12/10 Tag TOC post posiset plug set at 11256' SLM Latest H Value: N/A SBHP /SBHT: 05/20/04 3630 psi, 234 F at 8800' TVDss Program Objectives: The objective is to repair the packer and return the well to injection. This will be accomplished by setting a composite plug in the tubing, performing a tubing punch, and circulating cement up into the annulus �( above the packer. Upon a passing "mini" MIT -IA, the composite plug will be milled in the same CT rig up. A final MIT -IA to 4000 psi will be used to determine the success of the squeeze. Well History: Z -12i was drilled as a pre - produced injector in 1989. In December 1989, a PITS indicated a channel down to the bottom of the log at 11,400 MD, approximately 60' below bottom perf. At least 50% of the production was coming from the channel. The channel was never repaired. When the well was converted to injection in 2008, subsequent IPROFs indicated that the majority of injected fluids were exiting the toe, likely through the channel. This meant the well was not getting injection support to the desired zones and • wells. A posiset plug was set in November 2010 to shut off this channel. Following completion of the job, the well was P01 and found to have a packer which was confirmed with an LDL. Please contact Carolyn Kirchner at 564 -4190 (W), 227 -6169 (C) with any questions or comments. cc: Well File Cementing Specifications: • 10.0 bbls of cement to be mixed on the fly • 15.8 ppg Unislurry Class G Cement • 2 -3 hour thickening time • 2000 psi ultimate compressive strength • Bottom hole circulating temperature: 220 °F • Static bottom hole temperature: —230 °F • Perform a UCA test and a thickening time test on the field blend prior to rigging up. • Fluid loss should be on the order of 40 -80 m1/30 min. We are not intending to squeeze any of the cement PROCEDURE Slickline: Pull PXN 1. RU SL. Pull PXN plug from profile at 10452' MD. Drift for 3 -3/8" IBP down to at least 10650' MD. . Eline: Set IBP in liner 2. Ensure well is fluid packed. If fluid is not to surface, load well with 1 % KCL and freeze protect with diesel prior to setting IBP 3. Set a Baker 3 -3/8" IBP at 10560' ELMD (ref to PDS Depth Correlation 07- Sep -09. Annotated log is attached) Fullbore: CMIT -TxIA to 4000 psi 4. Using diesel, perform a CMIT -TxIA to 4000 psi. Fluid levels should be at surface from the previous step. Obtain a LLR if CMIT fails. The CMIT -TxIA must pass before procedding with the remainder of this procedure. Slickline: Pull IBP 5. Pull 3 -3/8" IBP. Drift tubing down to XN for composite plug. Planned plug type is a 4 -1/2" HES Obsidian, 3.66" OD. Eline: Set Composite Plug, Tubing Punch 6. Ensure well is fluid packed. If fluid is not to surface, load well with 1% KCL and freeze protect with diesel prior to setting IBP 7. Set a 4-1/2" HES obsidian composite plug in the tubing in the middle of the first pup joint below the packer and above the profile at 10390' MD (approximately 10375'MD, ref Tubing Tally 03- July-06). There are only 2, 10 ft pups between the packer and the profile. 8. Perform MIT -T to 2500 psi to ensure composite plug is holding. Note LLR if the test fails. This must be done before holes are punched in the tubing. 9. RIH with tubing punch BHA (4' of 1 spf tubing punch for 4 -1/2" tubing). Perform tubing punch 2' above the bottom collar in the 2" pup joint above packer from 10349'- 10353' MD (ref Tubing Tally 03- July -06). Fullbore: Cirulate Well • • 10. Circulate out well leaving diesel in the IA and inhibited 19/0 KCL in the tubing. Pump the following schedule down the tubing taking returns out the IA. Pump at max rate, not to exceed 2500 psi pump pressure. Returns will probably need to be taken to a tank through an in -line choke. a. 5 bbls McOH spear b. 290 bbls 19 KCL c. 585 bbls diesel (30 bbls greater than IA volume) d. 118 bbls of corrosion inhibited 1% KCL e. 40 bbls diesel f. DO NOT U -TUBE! The IA pressure should be —500 psi greater than the tubing pressure. Coiled Tubing Packer Squeeze 11. RU 1.75" CT. The RU should include a reverse out skid to allow for returns from either the IA or the CTxTbg annulus. It will also need to allow the cementers to pump down the coil while taking returns up the IA or backside. 12. Bleed any gas off the IA and tubing. Note that the IA pressure should be —500 psi greater than ✓ the tubing pressure. Bleed only gas, as we don't want to disrupt the hydrostatics in the tubing and IA. 13. MU & RIH with a ball drop cementing nozzle and RIH to composite plug. Take pipe displacement returns from the CTxTbg annulus. Tag the composite plug and pick up until full string weight is observed. Correct depth to 10375' MD and flag pipe (depth of plug in relation to the tubing tally). This depth correction will now put the nozzle on depth with the completion equipment in the tubing. 14. Circulate 10 bbls of diesel down the backside and up IA to ensure 1:1 returns are achievable and to ensure no gas is in the IA. This will also serve as a freeze protect cap while preparations are ,/ made to pump cement. Attempt to minimize the amount to fluid that goes into the IA from the CT. This fluid has not been inhibited for corrosion. 15. Pump 15.8 ppg class G cement down the coil taking return up the CTxTBG annulus according to the following pump schedule: a. 5 bbls lead spacer water for PT. b. 10.0 bbls of 15.8 ppg unislurry cement. c. 1 CT volume ( -33 bbls) of freshwater to get the cement to the nozzle. 16. When cement reaches the nozzle, CT depth should be at the flag (just above the composite plug). Allow cement to get 100' above the nozzle and then lay in cement 1:1. Time the nozzle depth ✓ such that the nozzle depth and cement top are equivalent as the last of the cement leaves the nozzle. Because of the small volume of cement being pumped, the timing must be very accurate so as not to contaminate the cement. 17. Once all the cement is out of the nozzle, shut choke, slow pump rate to minimum ( -0.3 bpm) and PUH to safety —300 ft above WCTOC. Ensure coil speed is in excess of 100 fpm to avoid stringing cement up hole. With 10.0 bbls of cement, the top of cement in the 4 -1/2" tubing should be 9725' MD, putting safety at 9425' MD. 18. With CT at safety, trap 200 psi on TBG and record IA pressure. Maintaining the same IA pressure, circulate exactly 8.5 bbls of cement into the IA by pumping down the CT and taking returns from the IA. Once 8.5 bbls have been circulated into the IA, shut IA. and open CTxTbg annulus (backside) and proceed with the clean out down to the composite plug. The IA will remain SI for the remainder of the job. While it is not critical that constant IA pressure is • • maintained, it is important that the well is not surged. Keep IA pressure as constant as practical for the duration of the job. 19. Pump several bbls of 3.0 ppb biozan and drop ball followed by —15 bbls of 3.0 ppb biozan and jet down to top of composite plug (tag plug) when biozan is at the nozzle. PUH while continuing to jet biozan and ensure 3.0 ppb biozan is spotted across interval 10000 - 10375. This will serve 2 purposes: the 3.0 ppb biozan should help keep the cement in the IA by acting as a viscous barrier. It will also help keep any residual cement in the tubing contaminated. 20. With XS 1% KCL at the nozzle, RBIH to no deeper than 10100' MD and proceed with a standard cement clean out jetting to surface at 80% and washing all jewelry on the way out of hole. Coiled Tubing Mill Plug 21. Make up a motor with a 5 blade flat bottom 3.70 mill (this is the recommended mill from HES), RIH to +/- 10,000' performing weight checks as necessary. 22. Wait until the cement reaches 500 psi compressive strength based on the UCA lab test. Perform a "mini" MIT -IA to a AP of 500 psi (i.e. IA pressure + 500 psi) by pumping diesel down the IA. 23. If "mini" MIT -IA passes, mill up any cement remaining in tubing, liner, and the composite plug at 10375' MD and push to TD. Ensure that while milling the composite, at least 200 -300 psi of tubing pressure is maintained so plug will not get blown up the hole. Do not surge well while milling plug, this could adversely affect the cement in the IA that is still setting up. 24. If "mini" MIT -IA does not pass — do not mill up composite plug. Contact either Carolyn Kirchner or Josh Allely to discuss results prior to proceeding with milling. - Note: Do not mill out the composite plug as it will be used during the LDL to determine the MIT -IA failure mechanism. 25. POOH. Ensure that tubing is freeze protected to 2,500' with diesel or methanol. This can be pumped down the backside and bullheaded into the tubing if injectivity allows. 26. RDMO. Fullbore Post Packer Squeeze MIT -IA 27. After 3 days WOC, MIT-IA to 4000 psi. If the MIT - -IA fails establish a leak rate. / )04-7-5 V ^fa it); , - - 0 411 • , , 0 Welt s DEPTH CORRELATION Ap .s, Press /GR /CCL /Temp 07-Sep-06 PaoreArrivs 0149*.switt Storvicts ri Company BP EXPLORATION (ALASKA), INC .....,,, Well Z - 12 60 z Fed PRUDHOE BAY102027 3 0 6 2 2 s,.... C County NORTH SLOPE state ALASKA ' 4= 0 0 Surface Location other Service e . 8 10 Pressure a 04 ,C _c 11 981' FNL & 3.494' FEL Temperaturt SEC: 19 TWP: 11N RGE: 12E tn 1 0„. Z 1 Elevation R MSL Elevation 0.0 a ... emanent Datum E 40 KB 91.7" Lag Measured From RKB D.E. o T a — 0 it. 0 lo API Serial Number 50.029-21977-0D , GL Date 07-SeE-06 Run Number One PBTD 1j371 1133Y 8ottoni *** ,-* Interval 11.310 inkevel 1 ek2s0 . Open Hole Size NA 4 Fend NA 1 — , MaxeResprdpel Temp. 4 Time WO Re; 0 1'250 I FINAL PRINT l or! : - . is 1337 1 . Loon** , Nortn Slo*:,_ Servkiiii ice P*M3 6106 Reoorded By ,. D Cal — Witnessed EN IS, Tedury TibiPaR ,, ,,,,it Nt J F1111 To $0,„ ,. WET F19111 IQ 41/2"L 12.60 Surface 10,47 , .,.. ,. casing Racant siza - ' L8 / Ft To Bottom 13 ars- 5200 Surface 2656' 9 51$ 47Q lQ767 Liner . gi.,1,27_ ...., ..,17 99 . , IVAThr L.Mer Liner . 11111111111.11111.111111.111MM.M„, - 1111 :II' III EUELM12=1111111111111 11111111111111111/111111111Nehmum -se 111111111111111111111111111111111111111.111 =1111== NM -40.111111111111111t ion �_ �� :fie -- Mon at gignipiii =�'� � � 11111111k= i 111110111111 IMMINIIIM INIIIIIIIIIIIIIIIIIMMIRMIMIN MEM ME MN 1.11.11111 MO 111.1111111■1 ilinniumalialitallaillini MN I in ......ii onsi .................. ...nimari....arn calmassa INSINIIIIIMMINN1111111111111111111.11 E MN an MN 111111111111111111.115111111111EM NM immillimimil 1.111.11.101.14.11111•11111011111111111111111111111111 Wan Lin II id mei — iiiiiiMilliCAMB an ,.„.„ 1111111110MMEC-0111 . Williallaiii MIN aiMMINIMMOONIMI RE RE, MOM ,,,,,,,, m onerillis = Emalpsonia skid 6=== . in ....... — _ , , . MIMI . IMMENIMINI ME ill I I I III I riP 07, 1 I illtIINIIIIMIIIIIIIIIIIttt;maII 4 4 ,, 4 ., MN MI 1111=1111111111111 MIMI =MN SRI t. '" "-" tA . .. En a stm aNsuman=vosim . to5bo, 'W1 MUM 11.11.1111111 IMO -m Elm ONMINalirlin= mum minunimeraumumonm am IllikinilliiiiiiiiMIMINIKAIMEM1111=======r0 El , NM 111111.111111.1.111111= sim unonm_a--- tamin4 in 111111.11110 MI • t raw= , , ._ : _ _ _ _ , , min . ........ . Clot 111111111101111 NM MIN all . „I, „ j ",i , _ 14 , 0 ' AM Milla..-Mil4.1.1111111K ill 111111111111111111111111111111111111M f 1111111111111111111111/1111111111111 AIM 011.1111111111111111111.11111N MMOMMUUNIONNUMMIIIIIIIIIIIiiiisiam kanimumniita II, I 1411-- 3 Bill lim ... m ... . --::::. 111. IIIIII■ 111•1111111111111111111MUENNESIMINIUM anumminm no MINE 111.101111111111111111111111111,111111111111111 ■111111ihimillii IMMIIIIIIIIIMMIN NO MN= —11111111111111111116QTRIMINIMME MI 11.1111111.111111111 MB ,„.,4 III!ii am mom oe_� 1,i „4 - Erni ft mei m mm wimp, mm am NMI M - MI - M - M - M - FM - M - = - = III 11111111111111111111 INN MS ME ----- MI TREE = 3-1/8" MCEVOY • IWELLHEFrD =, FMC _ SAFE Y N WELL REQUIRES A SSSV WHEN ACTUATOR= BAKER KB. ELEV = 91.7' BF. ELEV = 55.74' KOP = 3600' Max Angle = 49 @ 11100' Datum MD = 11079' Datum TV D = 8800' SS I 2104' H 4_1/2" HES X NIP, ID = 3.813" I 13 -3/8" CSG, 68 #, L -80, ID = 12.415" 1H 2658' 1-- A Minimum ID = 3.725" @ 10452' 4-1/2" HES XN NIP i 10345' N4 -1/2" HES X NIP, ID = 3.813" I 0 �� 10365' 1- 19 -5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.87" I -- ce p I-- 10390' H4 -1/2" HES X NIP, ID = 3.813" I ii... 1 10452' 4 -1/2" HES XN NIP, ID = 3.725" 4 -1/2" TBG, 12.6 #, L -80 TCII, .0152 bpf, ID = 3.958" H 10478' I 10452' H4 -1/2" PXN PLUG (12/11/10) I TOP OF 5-1/2" LNR N 10478' Iv 10478' I- 14 -1/2" MULE SHOE, ID = 3.958" I 1 0 111 '' ■ 4111 10499' I--1 ELMD LOGGED (09/07/06) I 9 -5/8" CSG, 47 #, NT -80S, ID = 8.681" H 10767' 1 169 ,ss6.o/ 1 PERFORATION SUMMARY REF LOG: CBT ON 11/3/89 11087' 1-I MARKER JOINT I ANGLE AT TOP PERF: 49 @ 11049' Note: Refer to Production DB for historical perf data I SIZE SPF INTERVAL Opn /Sqz DATE 2 -1/4" 6 11049 - 11069 0 04/09/05 2-1/8" 6 11096 -11134 0 12/21/04 11218' Hi MARKER JOINT 1 2 -1/8" 6 11143- 11156 0 07/10/94 2 -1/8" 6 11161 - 11172 0 07/10/94 I 2 -1/8" 6 11178 - 11190 0 07/10/94 2 -5/8" 4 11190 - 11206 0 07/10/94 2 -1/8" 6 11216 - 11228 0 07/10/94 2 -1/8" 6 11238 -11250 0 07/10/94 11301' HEST TOP OF CEMENT (11 /07/10) I 3-3/8" 4 11250 - 11280 0 07/10/94 �■■■- ■■• ■'" 11311' H1- 11/16" POSISET PLUG (11/07/10) I 3 -3/8" 4 11290 - 11300 0 07/10/94 I 3 -3/8" 4 11314 - 11338 0 07/10/94 11440' H FILL (CT TAGGED 11/23/06)) I PBTD j-i 11458' t�t�t���t∎tv WAWA ■ 5 -1/2" LNR, 17 #, L -80, .0232 bpf, ID = 4.892" 1-{ 11580' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 11/09/89 ORIGINAL COMPLETION 12/07/06 DFR/TLH CT TAG FILL (11/23/06) WELL: Z -12 07/07/06 N7ES RWO 05/30/09 CJN /TLH TBG DEPTH CORRECTION PERMIT No: 1891020 12/21/04 LDG /TLP ADD PERF 11/16/10 RRW /PJC SET POSISET/CMT (11/07/10) API No: 50 -029- 21977 -00 01/26/06 DBR/TLH ADD PERF (04/09/05) 12/12/10 SWC /PJC SET PXN (12/11/10) SEC 19, T11 N, R12E, 981' FNL & 3494' FEL 10/26/06 JLP /PAG SCHEMATIC CORRECTION 02/16/11 MB /JMD ADDED SSSV SAFETY NOTE 11/11/06 DBR/PJC DRLG DRAFT CORRECTION BP Exploration (Alaska) STATE OF ALASKA ALASKA. AND GAS CONSERVATION COMMISSIOO REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon ❑ Repair Well ❑ Plug Perforations ❑ Stimulate Other SET PLUG Performed: Alter Casing ❑ Pull Tubing ❑ Perforate New Pool ❑ Waiver❑ Time Extensior❑ Change Approved Program ❑ Operat. Shutdown ❑ Perforate ❑ Re -enter Suspended Well] 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: 5. Permit to Drill Number: Name: Development ❑ Exploratory ❑ — 189 -1020 3. Address: P.O. Box 196612 Stratigraphic❑ Service Igl 6. API Number: Anchorage, AK 99519 -6612 f. 50- 029 - 21977 -00 -00 8. Property Designation (Lease Number) : • 9. Well Name and Number: ADLO- 047453 .. PBU Z -12 10. Field /Pool(s): V PRUDHOE BAY FIELD / PRUDHOE BAY POOL 11. Present Well Condition Summary: Total Depth measured 11580 feet Plugs (measured) 10452, 11301 TOC feet true vertical 9198.9 feet Junk (measured) None feet Effective Depth measured 11458 feet Packer (measured) 10365 feet true vertical 9126.3 feet (true vertical) 8422 feet Casing Length Size MD TVD Burst 4 Collapse Structural Conductor 117' 20" SURFACE - 117 SURFACE - 117 Surface 2658' 13 -3/8" 68# L -80 SURFACE - 2658 SURFACE - 2658 4930 2270 Production 10737' 9 -5/8" 47# NT -80S SURFACE - 10767 SURFACE - 8687 6870 4760 Liner 1102' 5 -1/2" 17# L -80 10478 - 11580 8496 - 9199 APR p� 740 r,, 6280 Liner �,g HC I�U�j Liner Perforation depth: Measured depth: SEE ATTACHED - _ S _ _ True Vertical depth: _ _ 411 � _ steniTit Tubing: (size, grade, measured and true vertical depth) 4 -1/2" 12.6# ,"f L -80 33 - 10478 33 - 8496 Packers and SSSV (type, measured and true vertical depth) 4 -1/2" BKR S -3 PKR \ 10365 8422 RECEIVED' PR 9 6 2.011 12. Stimulation or cement squeeze summary: Intervals treated (measured): tasks gii & ens Cons. Commission Treatment descriptions including volumes used and final pressure: tI''i"(yof age 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water-Bbl Casing Pressure Tubing pressure Prior to well operation: 478 82 Subsequent to operation: 4,798 1,499 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory Development ❑ Service 0 Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: . Oil ❑ Gas ❑ WDSPL ❑ GSTOR p WINJ ❑ WAGE' GINJ ❑ SUSP❑ SPLUG ❑ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: 310 -340 Contact Joe Lastufka Printed Na - . astufk- 1 Title Data Manager Signatur: Minh Phone 564 -4091 Date 4/5/2011 NW VI RBDMS APR 08 2011 Form 10-404 Revised 10/2010 �< Submit Original Only Z -12 189 -102 PERF ATTACHMENT Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base Z -12 11/3/89 PER 11,250. 11,280. 9,000.55 9,019.11 Z -12 11/3/89 PER 11,290. 11,300. 9,025.26 9,031.39 Z -12 11/3/89 PER 11,314. 11,338. 9,039.95 9,054.55 Z -12 8/6/93 APF 11,190. 11,206. 8,962.98 8,973.06 Z -12 5/7/94 APF 11,178. 11,190. 8,955.39 8,962.98 Z -12 5/7/94 APF 11,216. 11,228. 8,979.34 8,986.85 Z -12 5/7/94 APF 11,238. 11,250. 8,993.09 9,000.55 Z -12 7/10/94 APF 11,161. 11,172. 8,944.61 8,951.59 Z -12 7/10/94 APF 11,143. 11,156. 8,933.13 8,941.43 Z -12 1/7/02 FIL 11,335. 11,458. 9,052.73 9,126.3 Z -12 12/21/04 APF 11,096. 11,134. 8,902.93 8,927.38 Z -12 4/9/05 APF 11,049. 11,069. 8,872.44 8,885.45 • Z -12 6/22/06 BPS 10,463. 11,338. 8,486.34 9,054.55 Z -12 9/7/06 BPP 10,463. 11,338. 8,486.34 9,054.55 Z -12 12/6/06 FCO 11,335. 11,440. 9,052.73 9,115.59 Z -12 11/7/10 BPS 11,301. 11,440. 9,032.01 9,115.59 Z -12 12/11/10 BPS 10,452. 10,453. 8,479.16 8,479.81 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG PULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE • • • Z -12 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 11/6/20101" *"WELL SHUT IN ON ARRIVAL* ** (E -LINE POSISET PLUG) !INITIAL T /I /O= 0/ 0/ 200 PSI INITIAL VALVE POSITIONS: M/ VALVES TO GAUGES= OPEN, S/W /SSV= CLOSED SET 5.5" POSISET PLUG IN 5.5" LINER. I TOP OF PLUG DEPTH= 11311', CCL TO TOP OF PLUG= 21', CCL STOP DEPTH= 1 11290' :4.8 GAL (4.94') OF CEMENT DUMPED ON PLUG IN 1 RUN FINAL T /I /O= 0/ 0/ 180 PSI FINAL VALVE POSITIONS: M/ VALVES TO GAUGES= OPEN, S/W /SSV= CLOSED l ** *JOB INCOMPLETE, SHUT DOWN FOR THE NIGHT, RESUME JOB ON 7 -NOV- 10 * ** 11/7/2010 ** *WELL SHUT IN ON ARRIVAL * * *(E -LINE POSISET PLUG - CEMENT) INITIAL T /I /O= 0/ 0/ 200 PSI INITIAL VALVE POSITIONS: M/ VALVES TO GAUGES= OPEN, S/W /SSV= CLOSED 14.8 GAL (4.94') OF CEMENT DUMPED ON PLUG IN 1 RUN FOR A TOTAL OF 9.6 GAL, 9.88' OF CEMENT DUMPED ON PLUG IN 2 RUNS 'TOP OF CEMENT= 11301' FINAL T /I /O= 0/ 0/ 180 PSI FINAL VALVE POSITIONS: M/ VALVES TO GAUGES= OPEN, S/W /SSV= CLOSED DO NOT BRING WELL ON INJECTION FOR A MINIMUM OF 5 DAYS AFTER :DUMPING CEMENT PER PROGRAM, WING TAGGED, DSO NOTIFIED ** *JOB COMPLETE * ** FLUIDS PUMPED BBLS 2 DIESEL 2 METH 4 TOTAL FLUIDS PUMPED GALS 9.6 CEMENT 9.6 TOTAL TREE = 3-1/8" MCEVOY • WELLHEAD = FMC SAFETY NO: WELL REQUIRES A SSSV WHEN ACTUATOR = BAKER Z -12 ON M!. KB. ELEV = 91.7' BF. ELEV = 55.74' KOP = 3600' Max Angle = 49 @ Datum MD = 11079' Datum TV D = 8800' SS 1 I 2104' I-l4 -1/2" HES X NIP, ID = 3.813" I 113 -3/8" CSG, 68 #, L -80, ID = 12.415" I — I 2658' I---A Minimum ID = 3.725" @ 10452' 1 1 10345' H4 -1/2" HES X NIP, ID = 3.813" I 4 -1/2" HES XN NIP • ��. 10365' I- 19 -5/8" X 4 -1/2" BKR S -3 PKR, ID = 3.87" I 10390' H4 -1/2" HES X NIP, ID = 3.813" I 1 ii I 10452' I-14 -1/2" HES XN NIP, ID = 3.725" I 14-1/2" TBG, 12.6 #, L -80 TCII, .0152 bpf, ID = 3.958" H 10478' I` 10452' H4 -1/2" PXN PLUG (12/11/10) I TOP OF 5 -1/2" LNR H 10478' I 10478' H 4 -1/2" MULE SHOE, ID = 3.958" I 10499' H ELMD LOGGED (09/07/06) I 9 -5/8" CSG, 47 #, NT -80S, ID = 8.681" H 10767' I PERFORATION SUMMARY 1 REF LOG: CBT ON 11/3/89 I 11087' I - 1 MARKER JOINT I ANGLE AT TOP PERF: 49 @ 11049' Note: Refer to Production DB for historical perf data 1 SIZE SPF INTERVAL Opn /Sqz DATE 2 -1/4" 6 11049 - 11069 0 04/09/05 2 -1/8" 6 11096 - 11134 0 12/21/04 I 11218' I - 1 MARKER JOINT 1 2 -1/8" 6 11143 - 11156 0 07/10/94 2 -1 /8" 6 11161 - 11172 0 07/10/94 1 2 -1/8" 6 11178 - 11190 0 07/10/94 2 -5/8" 4 11190 - 11206 0 07/10/94 2 -1/8" 6 11216 - 11228 0 07/10/94 2-1/8" 6 11238 - 11250 0 07/10/94 i 11301' HEST TOP OF CEMENT (11/07/10) I 3 -3/8" 4 11250 - 11280 0 07/10/94 ' ' ° 1 11311' 11311 I — I1 - 11/16" POSISET PLUG (11/07/10) I 3 -3/8" 4 11290 - 11300 0 07/10/94 1111 3 -3/8" 4 11314 - 11338 0 07/10/94 \ I 11440' I — I FILL (CT TAGGED 11 /23/06)) 1 PBTD H 11458' J 11111111 1 I5 -1/2" LNR, 17 #, L -80, .0232 bpf, ID = 4.892" I- 11580' DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 11/09/89 ORIGINAL COMPLETION 12/07/06 DFR/TLH CT TAG FILL (11/23/06) WELL: Z -12 07/07/06 N7ES RWO 05/30/09 CJN/TLH TBG DEPTH CORRECTION PERMIT No: '1891020 12/21/04 LDG/TLP ADD PERF 11/16/10 RRW /PJC SET POSISET /CMT (11/07/10) API No: 50- 029 - 21977 -00 01/26/06 DBR/TLH ADD PERF (04/09/05) 12/12/10 SWC /PJC SET PXN (12/11/10) SEC 19, T11N, R12E, 981' FNL & 3494' FEL 10/26/06 JLP /PAG SCHEMATIC CORRECTION 02/16/11 MB /JMD ADDED SSSV SAFETY NOTE 11/11/06 DBR/PJC DRLG DRAFT CORRECTION BP Exploration (Alaska) 4Q2010 Not Operable Injector Report • Page 1 of 1 • Maunder, Thomas E (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWelllntegrityCoordinator @bp.com] Sent: Saturday, February 19, 2011 2:43 PM To: AK, D &C Well Integrity Coordinator; Maunder, Thomas E (DOA); Regg, James B (DOA); Brooks, Phoebe L (DOA); Schwartz, Guy L (DOA) Cc: AK, OPS GC1 OSM; AK, OPS FS1 OSM; AK, OPS Area Mgr North (Gas Plants GPMA); AK, OPS GC2 OSM; AK, OPS FS1 DS Ops Lead; AK, OPS FS1 Facility OTL; AK, OPS FS2 DS Ops Lead; AK, OPS FS2 Facility OTL; AK, OPS FS3 DS Ops Lead; AK, OPS FS3 Facility OTL; AK, OPS GC1 Facility OTL; AK, OPS GC1 Wellpad Lead; AK, OPS GC2 Facility OTL; AK, OPS GC2 Wellpad Lead; AK, OPS GC3 Facility & Field OTL; AK, OPS GC3 Wellpad Lead; AK, OPS GPMA Facility OTL; AK, OPS LPC DS Ops Lead; AK, OPS Ops Supt; Kurz, John; AK, OPS MPU OSM; AK, OPS MPU Field Lead Tech; AK, OPS MPU Field Ops TL; AK, OPS MPU Well Ops Coord; AK, OPS MPU Wells Ops Coord 2; AK, OPS Nstar Lead Tech; AK, OPS Nstar OIM; AK, OPS Nstar O &M TL; AK, RES END Production Optimization Engineer; Kruger, Dale 0 Subject: 4Q2010 Not Operable Injector Report 17 V12'9-- Attachments: Not Operable Injector Report 4Q2010.zip f Hello Tom, Jim, Phoebe and Guy, Attached is the 4Q 2010 Injection Report for GPB, GPMA, Northstar, Milne Point and Endicott injectors classified as Not Operable. «Not Operable Injector Report 4Q2010.zip» Notes on wells: Removed from Quarterly Injection Report: *LAMED MAR (j 1 201" B1 -14: Passed AOGCC MITIA with Badami field restart R -13: Furmanite wrap repaired startinghead leak. Added to Quarterly Injection Report: MPF -92: Added until injection is requested. MPF -95: Added until injection is requested. MPL -09: Added until Furmanite clamp is fabricated and installed to mitigate startinghead leak. Z -12: Added until TxIA communication is repaired. Please call with any questions or concerns. Thank you, Gerald Murphy (alt. Torin Roschinger) Well Integrity Coordinator Office (907) 659 -5102 Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 2/22/2011 Well Z -12 Injection Plot TIO Plot Well classified as Not Operable ° Pressure vs. Rate o after an MIT -IA failed 12/05/10. CV o Tbg Diagnostics indicated a IA production casing leak above o • • OA ♦ b the packer. o 0 titAiMe Lo i .7c m •♦ • ° O •• • • o.a • A o 0 o Lo 1 ill M o Lo III . • Last 90 days • Last Month ~- o 0 1 ,000 2,000 3,000 4,000 5,000 6,000 7,000 6/18/10 9/8/10 11/29/10 2/19/11 Injection Rate, MCFPD 1 SS - s o Volume Injected Tubing Pressure Tbg Press IA Press OA Press ‘ Date (BWPD / MCFPD) (psi) WHP Date (psi) (psi) (psi) - kG`,� \ r■�C t , 4Q, \-- 01/01 /11 0 0 01/01/11 0 40 140 12/31/10 0 0 12/31/10 0 40 140 rn � 12/30/10 0 0 12/30/10 0 40 140 v t 12/29/10 0 0 12/29/10 0 40 140 12/28/10 0 0 12/28/10 0 40 140 a( \ l 12/27/10 0 0 12/27/10 0 40 140 12/26/10 0 0 12/26/10 0 40 140 12/25/10 0 0 12/25/10 0 40 140 12/24/10 0 0 12/24/10 0 40 140 12/23/10 0 0 12/23/10 0 40 140 12/22/10 0 0 12/22/10 0 40 140 • 12/21/10 0 0 12/21/10 0 40 140 12/20/10 0 0 12/20/10 0 80 140 12/19/10 0 0 12/19/10 0 80 140 12/18/10 0 0 12/18/10 0 80 140 12/17/10 0 0 12/17/10 0 80 140 12/16/10 0 0 12/16/10 0 80 120 12/15/10 0 0 12/15/10 0 100 120 12/14/10 0 0 12/14/10 0 40 160 12/13/10 0 0 12/13/10 0 40 160 12/12/10 0 0 12/12/10 0 100 160 12/11/10 5 48 12/11/10 1,250 1,300 200 12/10/10 4,445 1,260 12/10/10 1,250 1,300 200 12/09/10 4,651 1,256 12/09/10 1,250 1,300 200 12/08/10 4,489 1,212 12/08/10 1,250 1,300 200 12/07/10 4,623 1,255 12/07/10 1,250 1,300 200 12/06/10 4,726 1,268 12/06/10 1,300 1,300 200 12/05/10 4,694 1,271 12/05/10 1,250 1,300 200 12/04/10 4,721 1,285 12/04/10 1,250 1,300 200 12/03/10 4,607 1,272 12/03/10 1,000 1,300 200 12/02/10 4,555 1,305 12/02/10 1,300 1,340 200 • WELL LOG TRANSMITTAL P- 26PROACrivE DiAgNoslic SERVICES, INC. To: AOGCC Christine Mahnken 333 W. 7th Ave y 1 'all Suite 100 Anchorage, Alaska 99501 (907) 793 -1225 RE : Cased Hole /Open Hole /Mechanical Logs and /or Tubing Inspection(Caliper/ MTT) The technical data listed below is submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the following : BP Exploration (Alaska), Inc. Petrotechnical Data Center Attn: Joe Lastufka LR2 - 1 900 Benson Blvd. Anchorage, Alaska 99508 and ProActive Diagnostic Services, Inc. Attn: Robert A. Richey 130 West International Airport Road Suite C �d a Anchorage, AK 99518 Fax: (907) 245 -8952 /49 1) Leak Detection - WLD 14- Dec -10 Z -12 BL / EDE 50-029- 21977 -00 L 2) A Vim W ti D Signed : _ ate : a s C ,a 9, 1a0 � �, ; � .32-- Print Name: PROACTIVE DIAGNOSTIC SERVICES, INC., 130 W. INTERNATIONAL AIRPORT RD SUITE C, ANCHORAGE, AK 99518 PHONE: (907)245 -8951 FAX: (907)245 -88952 E-MAIL : pdsanchorage(merrrorvlog.corrr WEBSITE : www.memorrlog.com C:\Documents and Settings\Diane Williams \Desktop \Transmit_BP.docx NOT OPERABLE: Injector Z -126D #1891020) Secured with Downhol*9 Page 1 of 2 Maunder, Thomas E (DOA) From: AK, D &C Well Integrity Coordinator [ AKDCWellintegrityCoordinator @bp.com] Sent: Monday, December 13, 2010 1:45 PM To: Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr Cc: AK, D &C Well Integrity Coordinator; King, Whitney; Quy, Tiffany; Kirchner, Carolyn J Subject: NOT OPERABLE: Injector Z -12 (PTD #1891020) Secured with Downhole Plug Attachments: Z -12 TIO & Injection Plot 10- 19- 10.doc; Z- 12.pdf All, Injector Z -12 (PTD #1891020) has been secured with a tubing tail plug that has passed an MIT -T. The well has been reclassified as Not Operable. The plan forward is to continue diagnostics including a leak detect log. Please call with any questions or concerns. Thank you, Gerald Murphy (alt. Torin Roschinger) Well Integrity Coordinator Office (907) 659 -5102 Cell (907) 752 -0755 DEC 1 3 N16 Pager (907) 659 -5100 Ext. 1154 From: AK, D &C Well Integrity Coordinator Sent: Friday, November 19, 2010 8:23 AM To: 'Maunder, Thomas E (DOA)'; 'Regg, James B (DOA)'; 'Schwartz, Guy L (DOA)'; AK, OPS GC2 OSM; AK, OPS GC2 Field 0 &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB Central Prod Opt Engr Cc: AK, D &C Well Integrity Coordinator; King, Whitney; Holt, Ryan P (ASRC); Kirchner, Carolyn J Subject: UNDER EVALUATION: Injector Z -12 (PTD #1891020) Eval IA repressurization All, Well Z -12 (PTD #1891020) is a WAG injector that has recently shown signs of IA repressurization. The most recent MITIA passed on 05/19/09 verifying two competent barriers at the time. However, on 11/18/10 the IA pressure would not bleed below injection pressure. The well has been reclassified as Under Evaluation for further diagnostics. The plan forward is as follows: 1. Wellhead: Pack -off test on the tubing 2. Pumping: MITIA to 2500 psi, LLR if fails 3. WIE: Bleed and monitor for IA repressurization 4. E -Line: Run leak detect log (pending diagnostic results from previous steps) 12/13/2010 NOT OPERABLE: Injector Z -126D #1891020) Secured with Downhol u9 Page 2 of 2 A TIO /injection plot and wellbore schematic have been included for reference. <<Z -12 TIO & Injection Plot 10- 19- 10.doc>> <<Z- 12.pdf>> Thank you, Torin Roschinger (alt. Jerry Murphy) Well Integrity Coordinator Office (907) 659 -5102 Harmony Radio x2376 Cell (406) 570 -9630 Pager (907) 659 -5100 Ext. 1154 12/13/2010 TIO Plot W4*:z -12 I 4.000 - I I ' 3,000 —+� T �— R 2.000 - DA DOA t OOOA On 1,000 08/28/10 09171/10 09/25/10 10 /09 /10 10/23/10 11/06/10 i Injection Plot w.WZ -1z 44.090 1.5010 42,000 1,400 40,000 '.,,.. 38.000 1 300 36.000 1,200 34,000 3L00 1,1 00 30 009 1,000 28 OOU 900 26,000 'p - WHIP 24,000 _ SW s 800 2: 070 ; - MI ? 20 090 1x1 — GI 18.0999 —0lha 640 s.a� — 0 n 590 14M z.o90 19.a� 300 8.009 200 6,000 4,000 100 2,Op3 08/21 /10 OBIN110 09 /04/10 09111/10 09/18/10 09/25710 1WUA0 10/09110 10/16/10 10/23110 10/30/10 11!06/10 11/13/10 u BP Exploration (Alaska) Inc. Attn: Weli Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 August 14, 2009 c.:a::r;~i`k:~l~~~ r it!'_~ r i. ~~~ `~ ?_ClC.~ Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPB Z-Pad Dear Mr. Maunder, r \ LJ bp ~~~~~~~~ OCT ~ 5 2009 ~!lask~ Dil ~ Gas Cons. Con~rr~i~Rion Anchora~a g~ ~ ~~~ ~-'" ~,~-,' Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB Z- Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Anna Dube, at 659-5102. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator • • BP Exploration (Alaska ) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10-404) Date Z-Pad 8/13/2009 Well Name PTD # API # Initial top of cement Vol. of cement um ed Final top of cement Cement top off date Corrosion inhibitor Corrosion inhibitor/ sealant date ft bbls ft na al Z-Ot6 2081080 500292t8300200 NA 0.2 NA 3.40 7/24/2009 Z-02A 1960430 50029218140100 NA 0.4 NA 3.40 7/24/2009 Z-03 1971310 50029227870000 NA 1.3 NA t 1.90 7/24/2009 Z-04A 2042300 50029219900100 NA 1.5 NA 14.50 7/2M2009 Z-OS 1900780 50029220560000 NA 1 NA 8.50 7/24/2009 Z-O6 1880320 50029217980000 NA 0.1 NA 1.70 7/24/2009 Z-07A 1931100 50029220460100 NA 2 NA 17.00 7/24/2009 Z-OSA 1931280 50029217870t00 NA 0.2 NA 2.55 7/24/2009 Z-09A 2081410 50029219670100 NA 0.2 NA 1.70 7/24/2009 Z-10 1891160 50029219860000 NA 1.3 NA 11.10 7/24/2009 Z-11A 2050310 50029220530100 NA 0.2 NA 1.70 7/26/2009 Z-12 1891020 50029219770000 NA 12 NA 8.50 7/26/2009 Z-13A 2042030 50029220690100 NA 3.6 NA 24.66 7/26/2009 Z-146 2060990 50029218440200 NA 0.2 NA 1.70 7/26/2009 Z-15 1880880 50029218490000 NA 0.2 NA 1.70 7/26/2009 Z-16 1920120 50029222450000 NA 0.3 NA 2.55 7/26/2009 Z-17 1891390 50029220010000 NA 3.7 NA 34.00 7/26/2009 Z-18 1890960 500292t9710000 NA 02 NA 1.70 7/26/2009 Z-19A 2061050 50029222510100 NA 0.2 NA 1.70 7/26/2009 Z-20 1881000 50029218590000 NA 0.2 NA 1.70 7/26/2009 Z-21A 2001010 50029219380100 NA 0.2 NA 1.70 7/23/2009 Z-226 1960350 50029220370200 NA 0.5 NA 5.10 7/23/2009 Z-23B 2041080 50029219500200 NA 0.3 NA 1.70 7/23/2009 Z-24 1890180 50029219170000 NA 0.3 NA 2.55 7/23/2009 Z-25 1881590 50029219020000 NA 0.2 NA 1.70 7/23/2009 Z-26A 2060790 50029219450100 NA 0.3 NA 3.40 7/23/2009 Z-27 1900310 50029220220000 NA 0.2 NA 2.55 7/25/2009 Z-28 1881270 50029218790000 NA 02 NA 1.70 7/25/2009 Z-29 1890650 50029219540000 NA 0.2 NA 1.70 7/25/2009 Z-30A 2032190 50029220130100 NA 02 NA 3.40 7/25/2009 Z-31 1881120 50029218710000 NA 0.3 NA 3.40 7/26/2009 Z-328L1 1970350 50029219246000 NA 02 NA 1.70 7/25/2009 Z-33A 1890050 50029218950100 NA 0.5 NA 3.40 8/8/2009 Z-35 1980930 50029228840000 NA 1.3 NA 11.50 7/4/2009 2-38 1980600 50029228730000 NA 1.2 NA 11.90 7/26/2009 Z-39A 2042240 50029229950100 NA 3.8 NA 39.90 7/25/2009 Z-46A 2052030 50029232800100 NA t.7 NA 13.60 7/26/2009 Z-t00 2031710 50029231820000 NA 5 NA 45.90 7/23/2009 Z-101 2001620 50029229780000 NA 1 NA 10.20 7/23/2009 Z-102 20~0500 50029233530000 NA 1.5 NA 15.30 7/25/2009 Z-103 2042290 50029232350000 NA 1.5 NA 10.20 7/25/2009 Z-1o8 2052010 50029232920000 NA 1.5 NA 11.90 7/24/2009 Z-112 2071720 5o02s2338o000o NA surface NA os/osios r ~~ Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Well Job # Log Description NO.5271 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Date BL Color CD H-35 AYTO-00018 CROSS FLOW CHECK ~ 05/09/09 1 1 14-35 ANHY-00087 INJECTION PROFILE - 05/15/09 1 1 06-08A AV1H-00012 IBP/FBS/CFS/GRADIO/PRESS/T P 05/11/09 1 1 A-44 AWL8-00017 SCMT 05/25/09 1 1 12-07A BOCV-00016 SBHP SURVEY 05/19/09 1 1 09-24 ANHY-00088 CROSS FLOW CHECK/IBP q 05/17/09 1 1 H-29A AYOO-00027 PPROF/RST 05/f 9/09 1 1 09-09 AYTU-00032 CROSS FLOW CHECK , 05/06/09 1 1 15-45B ANHY-00010 PRODUCTION PROFILE ~- 05/09/09 1 1 13-13A AYTU-00033 USIT - '~~ ~ 05/08/09 1 1 M-196 AY3J-00024 PRODUCTION PROFILE 05!14/09 1 1 Z-12 ANHY-00084 INJECTION PROFILE 05/07/09 1 1 E-36A BiJJ-00018 MEM CNUSTP ~ 05/18/09 1 1 X-30A B2WY-00005 MEM PROD PROFILE C 05/10/09 1 1 12-23 AYKP-00021 USIT L - 05/08/09 1 1 W-34A AWJI-00031 MEM PROD PROFILE 05/19/09 1 1 Z-146 AZCM-00022 PROD PROFILE/JEWELRY LOG ~ ~- 05/20/09 1 1 Li-21 62NJ-00006 PRODUCTION PROFILE o 05/24/09 1 1 A-31A AZCM-00023 USIT ~ - O {fl C 05/22/09 1 1 H-196' 62WY-00004 MEM PROD PROFILE L 05/07/09 1 1 G-16 AYKP-00022 SCMT / / - 05/09/09 1 1 M-196 AY3J-00024 SCMT 05/15/09 1 1 12-37 AWL9-00032 PRODUCTION PROFILE ~ yC/ ` 04/21/09 1 1 11-04A AYOO-00028 USIT ~ L~ ~ 05/21/09 1 1 18-30 B1JJ-00015 MEM PROD PROFILE JG/ 05/13/09 1 1 4-14A/S-37 AYKP-00024 PRODUCTION PROFILE ~ - ~ t 05/11/09 1 1 3-371E-35 AWL9-00035 PROD/INJECTION PROFILE 05/22/09 1 1 3-371E-35 AWL9-00035 TEMPERATURE SURVEY 05/20/09 1 1 V-217 AYOO-00024 INJ PROFILE/RST WFL t3 / ~}/~ 04/26/09 1 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING ANU RETURNING ONE COPY EACR TO: BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 t~~~~~I p 900 E. Benson Blvd. ~.,WVJ~+°~~3d ., ~,i!'•3 ~` ~~~ Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 MEMORANDUM To: Jim Regg ~~~~ ~_f l~L~c~ P.I. Supervisor `"'ll FROM: Chuck Scheve Petroleum Inspector State of Alaska Alaska Oil and Gas Conservation Commission DATE: Wednesday, May 20, 2009 SUBJECT: Mechanical Integrity Tests BP EXPLORATION (ALASKA)1NC Z-12 PRUDHOE BAY UNIT Z-12 Src: Inspector NON-CONFIDENTIAL Reviewed By: P.I. Suprv '~ ~ Comm Well Name: PRUDHOE BAY UNIT Z-12 API Well Number: 50-029-21977-00-00 Inspector Name: Chuck Scheve Insp Num: mitCS090520063612 Permit Number: 189-102-0 Inspection Date: 5/19/2009 Rel Insp Num: Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Wel] z-12 Type Inj. W TVD 8422 `~ IA 100 4000 3990 3990 P.T.D 1891020 `TypeTest SPT Test psi 2105.5 OA~ 240 260 260 260 Interval °T~R P/F P ~ Tubing X80 780 7so i Aso _ NOtes: Test performed pre-MI swap. Pretest pressures observed and found stable i ;: ;:~ Wednesday, May 20, 2009 Page 1 of 1 Schlumbel'ger Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage. AK 99503-2838 ATTN: Beth Well MPS-10A 15-08CL 1 Z-12 L3-11 AGI-10A GNI-02A GNI-02A 12-18 NGI-07 A DS 12-14AL 1 01-23 WGI-09 Job# 11076475 10942196 11513657 11533392 11485869 11485873 11485874 N/A 11212892 11540230 11549351 11486172 UrC-Ií0 - /Od i:¡L../360 Log Description CH EDIT SCMT (PDC-GR) CH EDIT JEWELRY (PDC-GR) RST RST USIT USIT MDT USIT USIT CORROSION & CBL USIT USIT PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. e-I"AY'NED JAN 2 3 Z007 Petrotechnical Data Center LR2-1 0\IrU1t 900 E. Benson Blvd. Anchorage. Alaska 99508 Date Delivered: Date 10/17/05 03/01/05 12/06/06 12/31/06 11/09/06 11/15/06 12/03/06 11/17/06 10/13/06 12/18/06 12/16/06 12/03/06 01/22/2007 NO. 4112 Company: State of Alaska Alaska Oil & Gas Cons Comm AUn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay BL Color CD 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ( Alaska Data & rtr~ 2525 Gambell S ~~Oø' Anchorage, AK 99503-2838 ATTN: Beth Received by: -- . WELL LOG TRANSMITTAL ProActive Diagnostic Services, Inc. To: AOGCC Records Department 333 W. 7th Ave Suite 1 00 Anchorage. Alaska 99501 RE: Cased Hole/Open Hole/Mechanical Logs and lor Tubing Inspection(Cafiper / MTT] 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 : ProActive Diagnostic Services, Inc. Attn: Robert A. Richey 130 West International Airport Road Suite C Anchorage, AK 99518 Fax: (907) 245-8951 1] 2] 3J 4J 5J 6J 7J EDE Disk Z - 12 07-Sep-06 Depth Determination ~i(;t~NN.id> ¡~ <) 'llef1} _ l-~~ I:;"'VV'''' Print Name: c..JL--- ~ j¡ {IA)-MIA º- tv( Ct.LtlÂ-L<:Q-~ RECEIVED Signed: Date: SEP 2 !} 2006 "'Iaska Oil & Gas Cons. Commission Anchorage PRoAcTIVE DIAGNOSTIC SERVICES, INC., 130 W. INTERNATIONAL AIRPORT Ro SUITE C, ANCHORAGE, AK 99518 PHONE: (901)245-8951 FAX: (901)245-88952 E-MAIL: PDSANCHORAGE@MEMORYLOG.COM WEBSITE: WWW.MEMORYLOG.COM C:lDocmnenls and SettingsIPDS Anchorage· MPLlDesktop\Transmit_ Original.doc UIC- / fiCf -/O~ f& I '-{ / 1../ () 1. Operations Performed: Ancnorage o Abandon o Repair Well o Plug Perforations o Stimulate o Re-Enter Suspended Well o Alter Casing 181 Pull Tubing o Perforate New Pool o Waiver 181 Other o Change Approved Program o Operation Shutdown o Perforate o Time Extension Convert to Injector 2. Operator Name: 4. Well Class Before Work: 5. Permit To Drill Number: BP Exploration (Alaska) Inc. o Development o Exploratory 189-102 3. Address: o Stratigraphic 181 Service 6. API Number: P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-21977-00-00 7. KB Elevation (ft): 91.7' 9. Well Name and Number: PBU Z-12 8. Property Designation: 10. Field / Pool(s): ADL 047453 Prudhoe Bay Field / Prudhoe Bay Pool 11. Present well condition summary Total depth: measured 11580 feet true vertical 9199 feet Plugs (measured) None Effective depth: measured 11371 feet Junk (measured) None true vertical 9074 feet Casing Length Size MD TVD Burst Collapse Structural Conductor 117' 20" 117' 117' Surface 2658' 13-3/8" 2658' 2658' 4930 2270 Intermediate 10767' 9-5/8" 1 0767' 8687' 6870 4760 Production Liner 1102' 5-1/2" 10478' - 11580' 8496' - 9199' 7740 6280 ...;., ". \ð.i::L ~f cO; ',.n ,0 ·'c Perforation Depth MD (ft): 11049' - 11338' Perforation Depth TVD (ft): 8872' - 9055' Tubing Size (size, grade, and measured depth): 4-1/2", 12.6# L-80 10478' Packers and SSSV (type and measured depth): 9-5/8" x 4-1/2" Baker'S-3' packer 10365' 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment description including volumes used and final pressure: RBDMS 8FL jUt 2 0 2006 13. Recresentative Dailv Averaae Production or Iniection Data Oil-Bbl Gas-Mcf Water-Bbl Casino Pressure Tubina Pressure Prior to well operation: Subsequent to operation: 14. Attachments: 0 Copies of Logs and Surveys run 15. Well Class after proposed work: 181 Daily Report of Well Operations o Exploratory o Development 181 Service 16. Well Status after proposed work: 181 Well Schematic Diagram o Oil o Gas 181 WAG OGINJ OWINJ o WDSPL 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. SUndry Number or N/A if C.O. Exempt: Contact Matt Martyn, 564-4101 306-219 Printed Name Terrie Hubble Title Technical Assistant Signature /fÔA^ìJ Nð} ~ Date 07/1<1.10(" Prepared By Name/Number: Phone 564-4628 Terrie Hubble, 564-4628 STATE OF ALASKA . A~ Oil AND GAS CONSERVATION COM SION REPORT OF SUNDRY WELL OPERATIONS Alaska Oil & Gas Cons. Cmnmission RECEIVED JUL 1 9 2006 Form 10-404 Revised 04/2~. uR'Gl~\J.Ô Submit Original Only TREE = 4-1/16" Cameron WELLHEA'D = FMC ACTUA TOR = BAKER KB.ELEV= 91.7' BF. ELEV = 55.74' KOP = 3600' Max Angle = 49 @ 11100' Datum MD = 11079' Datum lVD = 8800' SS e Z -12 ~NOTES: ***CHROME TBG*** FROM DRLG - DRAFT 13-318" CSG, 68#, L-80, ID = 12.415" I Minimum ID :;:: 2.750" 2107' 3-1/2" OTIS SSSV NIPPLE 14-1/2" TBG, 12.6#, L-80, TC-II, ID = 3.958" H 10481' I I TOP OF 5-1/2" LNR H 10478' I 9-5/8" CSG, 47#, L-80, ID = 8.681" 10767' PERFORA TION SUMMARY REF LOG: CBT ON 11/3/89 ANGLEATTOPPERF: 49 @ 11049' Note: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz DATE 2-1/4" 6 11049-11069 0 04/09/05 2-1/8" 6 11096 -11134 0 12/21/04 2-1/8" 6 11143 - 11156 0 07/10/94 2-1/8" 6 11161 - 11172 0 07/10/94 2-1/8" 6 11178 -11190 0 07/10/94 2-5/8" 4 11190 -11206 0 07/10/94 2-118" 6 11216 - 11228 0 07/10/94 2-1/8" 6 11238 - 11250 0 07/10/94 3-3/8" 4 11250-11280 0 07/10/94 3-3/8" 4 11290 - 11300 0 07/10/94 3-3/8" 4 11314-11338 0 07/10/94 I PBTD I 11580' 11371' 15-1/2" LNR, 17#, L-80, .0232 bpf, ID = 4.892" 2103' -i 4-1/2" X-NIP,ID=3.813" 1 0344' -1 4-1/2" X-NIP 10 = 3.813" 10365' -19-5/8" X 4-1/2" S-3 PKR, 10 = 3.87" 10389' -14-1/2"X-NIP,ID=3.813" I 10453' -I 4-1/2" XN-NIP, 10 = 3.725" I Mule Shoe jt. I 11087' -i MARKER JOINT I 11218' -IMARKERJOINT I DATE 11/09/89 05/18/01 01/08/01 05/06/04 12/21/04 07/09/05 REV BY COMMENTS ORIGINAL COMPLETION RNlTP CORRECTIONS DAV/KK GLV C/O KSB/KAK GLV C/O LDGITLP ADD PERF KDClPJC GL V C/O DATE 01/26/06 06/23/06 07/06/06 REV BY COMMENTS DBRlTLH ADD PERF (04/09/05) MJM Proposed RWO Completion LFA Actual RWO Completion PRUDHOE SA Y UNIT WELL: Z-12 PERMIT No: '1891020 API No: 50-029-21977-00 SEC 19, T11 N, R12E, 981' FNL & 3494' FEL BP Exploration (Alaska) e e Z-12 Rig Workover Prudhoe Bay Unit 50-029-21977-00 189-102 Accept: Spud: Release: Ri: 06/29/06 N/A 07/07/06 Nabors 7ES PRE-RIG WORK 06/22/06 DRIFTED TO 10500' SLM, W/2.70" CENT, SB. (MIT BAILER). SET BAKER COMPOSITE 2.55" BRIDGE PLUG MID ELEMENT 10463'. WELL SHUT IN. 06/26/06 MADE SEVERAL ATTEMPTS TO SET 2.75" XX PLUG. FISHED DROPPED TOOLSTRING. RAN 3.5" BLB AND 2.25" GAUGE RING, RATTLED ALL MANDRELS, CAME BACK W/29' OF .108 WIRE WRAPPED ON TOOLS. 06/27/06 FISHED TOOLS AND PLUG, SLB E-LlNE IS GOING TO SET A FAST DRILL PLUG. RAN 2.70" DRIFT, SD ON BAKER COMPOSITE BRIDGE PLUG AT 10451' SLM. WELL LEFT S/I ON DEPARTURE. 3-1/2" BAKER QUICKDRILL SET AT 10,436'. MEDIUM TUBING PUNCH OVER INTERVAL 10,302' -10,304', 2X12' STRING SHOT OVER INTERVAL 10,360' - 10,372'. CHEMICAL CUT OF 3-1/2" TUBING AT 10,371', TIED INTO TO 3-1/2" TUBING SUMMARY DATED 5-NOV-1987. e e legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Z-12 Z-12 WORKOVER NABORS ALASKA DRILLING I NABORS 7ES Start: 6/28/2006 Rig Release: Rig Number: 4835 Spud Date: 10/11/1989 End: 6/28/2006 00:00 - 05:00 5.00 MOB P PRE Disconnect service lines. Move mud pits from sub base. Load out shop. Install jeep under mud pits. Prepare derrick to lay down while moving camp, mud pits and shop to Z-pad 05:00 - 06:00 1.00 MOB P PRE Lay down derrick. Load matting boards out. Move sub base off of S-44. 06:00 - 16:00 10.00 MOB P PRE Move sub base from S-pad to Z-pad. Staging sub base on Z-pad. 16:00 - 19:00 3.00 MOB P PRE Raise and pin derrick and cattle chute. Bridal down. Pin blocks to top drive. Rig up rig floor, While wells group finishes pre rig work on Z-12. 19:00 - 00:00 5.00 MOB N DPRB PRE Wait on completion of pre rig work. Little Red Hot Oil Services circulated kill weight fluid around in well Z-12. DSM Attempted to set a TWC valve in Z-12. Running into an obstruction 3" above TWC 1 BPV profile. Two attempts were made to set TWC valve with the same results. Attempt to install a BPV also with the same results. Seals on TWC and BPV were scared after attempting to set in profile. Shoot grade and level location. Consultant with engineer about options. Mobilize Schlumberger slick line unit to set a plug in the sub surface safety valve. 6/29/2006 00:00 - 01 :30 1.50 MOB N DPRB PRE Mobilize Schlumberger slick line unit to set a plug in the sub surface safety valve. 01 :30 - 05:00 3.50 MOB N DPRB PRE Rig Schlumberger slick line unit on Z-12. Run in the hole and set a 2.8" PX plug in SSSV at 2107'. Pull out of the hole with slick line and redress tools. Run in the hole and set a 1 3/4" prong inside the PX plug. 05:00 - 09:00 4.00 MOB N DFAL PRE Test plug in SSSV to 500 psi OK, stage pressure to 2150 psi and hold for 15 minutes. Bleed off pressure and rig down Schlumberger slick line unit. DSM remove scaffolding from tree on Z-12. 09:00 - 13:00 4.00 MOB P PRE Spot matting boards, lay herculite around cellar area. Spot and level sub base over Z-12. Spot and set mud pits in place. Rig Accepted at 13:00 Hours. 13:00 - 14:00 1.00 MOB P PRE Hook up service lines. Install secondary annulus valve. 14:00 - 18:30 4.50 WHSUR P DECOMP Remove fluid from tree from testing plug set in SSSV. Nipple down tree. Inspect threads on tubing hanger and profile for TWC / BPV. OK. Install TWC valve. Verify tubing hanger threads as 3 1/2" TDS 9 turns to the right by hand. 18:30 - 21 :00 2.50 BOPSU P DECOMP Nipple up BOP. 21 :00 - 22:00 1.00 BOPSU P DECOMP Install turn buckles and secure BOP. Install flow riser. 22:00 - 23:30 1.50 BOPSU P DECOMP Remove blind rams and install rebulit blind shear rams. 23:30 - 00:00 0.50 BOPSU P DECOMP Rig up test joint to test BOP. 6/30/2006 00:00 - 04:00 4.00 BOPSU P DECOMP Test BOP and associated valves to 250 psi low 4000 psi high, 250 psi low 3500 psi high on the hydril. Witness of BOP test wavied by AOGCC Rep John Crisp. BOP test witnessed by Tool pusher Larry Wuderman and WSL Wade Frame. Rebulit blind shear rams failed 250 psi low test. Note: Unable to test lower pipe rams due to height interference. Lower pipe rams will be tested with 2 718" and 4 1/2" test joint once tubing is laid down. 04:00 - 06:00 2.00 BOPSU N SFAL DECOMP Drain BOP. Remove rebuilt blind shear rams and install blind rams. 06:00 - 07:00 1.00 BOPSU P DECOMP Test blind rams to 250 psi low 4000 psi high. Rig down and Printed: 7/10/2006 7:22:36 AM e e legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Z-12 Z-12 WORKOVER NABORS ALASKA DRILLING I NABORS 7ES Start: 6/28/2006 Rig Release: Rig Number: 4835 Spud Date: 10/11/1989 End: blow down test equipment. Rig up DSM lubricator and pull TWC valve. Rig down lubricator. Pre Job Safety Metting with Schlumberger slick line personal. Spot slick line unit and rig up lubricator and bop on rig floor. 11:00 -13:00 2.00 PULL P DECOMP Run in the hole with slick line and retrieve 1.75 prong. Redress tools and run in the hole and retrieve 2.80 PX plug from SSSV. 13:00 - 14:00 1.00 PULL P DECOMP Rig down slick line lubricator and bop from rig floor. 14:00 - 14:30 0.50 PULL P DECOMP Screw landing joint into hanger. Back out lock down screws. Pull hanger to floor. Hanger came off seat at 105k up weight, weight remained constant while pulling hanger to rig floor. 14:30 - 17:00 2.50 PULL P DECOMP Pump 50 bbl Safe-Surf 0 sweep followed by 780 bbls of 120 degrees 8.5 ppg sea water at 6 bpm 700 psi. Rig up Nabors casing equipment and Camco spooling unit while circulating. Sea water weight In 8.5 ppg. Out 8.5 ppg. 17:00 - 18:00 1.00 PULL P DECOMP Break and lay down hanger. Terminate control lines 18:00 - 21:00 3.00 PULL P DECOMP Lay down 3 1/2" 9.2# L-80 IBT tubing to SSSV. Rig down and lay down Cameo control line spooler. Recovered 4 SS Bands and 33 Rubber CL Clamps. 21 :00 - 00:00 3.00 PULL P DECOMP Continue to lay down 31/2" 9.2# L-80 IBT tubing. 7/1/2006 00:00 - 05:30 5.50 PULL P DECOMP Continue to lay down 3 1/2" 9.2# L-80 IBT tubing. Recovered 6 GLMs,1 SSSV, 320 full joints + a 2.08' cut off joint. 05:30 - 07:00 1.50 PULL P DECOMP Rig down Nabors casing equipment and clean rig floor. 07:00 - 08:30 1.50 BOPSU P DECOMP Insatll test plug and test lower pipe rams to 250 psi low 4000 psi high with 4 1/2" test joint and 2 7/8" test joint. Rig down and blow down test equipment. 08:30 - 11 :00 2.50 PULL P DECOMP Pick up BHA #1 consisting of, 8.375" Cut lip guide, 8.125" Over shot bowl, 8.125" Top extension, 8.125" Top sub, Cross over sub, Bumper sub, Oil jar, Cross over sub, ( 9 ) 6.375" Drill collars, Cross over sub, Accelerator jar, Cross over sub. = 324.25" 11 :00 - 13:30 2.50 PULL P DECOMP Run in the hole with BHA #1 picking up 4" HT-40 drill pipe from pipe shed to 1700'. Up weighr 83k. Slack off weight 83k 13:30 - 14:30 1.00 BOPSU P DECOMP Make up and set Halliburton 9 5/8" storm packer 10' below base flange. 14:30 - 15:30 1.00 BOPSU P DECOMP Back out lock down screws and level rig. 15:30 - 18:00 2.50 BOPSU P DECOMP Pull wear bushing. Make up packoff running tool and engage packoff. Attempt to pull 9 5/8" packoff at 130k up weight, slack weight off to netural weight and ensure that lock down screws were completely back out. Found 2 lock down screws 1/8" from being completely back out, Pull packoff to rig floor with 105k up weight. Observed ( 2 ) 1/4" x 4 1/2" gouges on body of pack off. Unsuccessfully attempted to install new 9 5/8" pack off. At surface it was observed that the O-Ring seals and been damaged also found plastic packing on the base of the new 9 5/8" packoff. Note: Measurements were taken by FMC rep on the lock down screws run out, which indicated that they were completely backed out. 18:00 - 23:00 5.00 BOPSU N HMAN DECOMP Nipple down BOP at 9 5/8 casing spool. Remove plastic packing and clean profile. Inspect tubing spool finding ( 2 ) 1/4" Printed: 7/10/2006 7:22:36 AM e Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Z-12 Z-12 WORKOVER NABORS ALASKA DRILLING I NABORS 7ES Start: 6/28/2006 Rig Release: Rig Number: 4835 Spud Date: 10/11/1989 End: scars the fulllenght of the tubing spool. Nipple down tubing spool and remove from cellar. Install new 9 5/8" packoff. Nipple up new tubing spool. Test 9 5/8" packoff and base flange to 5000 psi for 10 minutes. 23:00 - 00:00 1.00 HMAN DECOMP Nipple up BOP. 7/212006 00:00 - 00:30 0.50 HMAN DECOMP Continue nippling up BOP, Install flow riser, secure BOP. 00:30 - 01 :30 1.00 HMAN DECOMP Install test plug and perform full body test. Testing tubing spool flange to 250 psi low, 4000 psi high. 01 :30 - 02:00 0.50 HMAN DECOMP Pull test plug and install wear bushing. 02:00 - 02:30 0.50 DECOMP Retrive 9 5/8" storm packer and lay down. Monitor well bore ( Static) 02:30 - 04:00 1.50 FISH P DECOMP Cut and slip drilling line and service top drive. 04:00 - 12:00 8.00 FISH P DECOMP Pick up 4" HT-40 drill pipe from pipe shed From 1700' to 10266. Picked up 315 joints of 4" HT-40 drill pipe. 12:00 - 13:00 1.00 FISH P DECOMP Wash down to fish (31/2" tubing stub )from 10266' to 10365' DPM. Tag top of fish at 10365'. Up weight 190k, Slack off weight 160k, Rotating weight 173k, Torque 4-5k 13:00 - 13:30 0.50 FISH P DECOMP Engage 3 1/2" tubing stub with over shot dressed with a 3 1/2" basket grapple while pumping 3 1/2 bpm 230 psi until pressure increase was observed, bleed off pressure and rotate 12 turns to release K-Anchor. Pick up to 190k to verify engagement, slack off and resume pumping at 3 1/2 bpm 230 psi to confrim release of K-Anchor. 13:30 - 15:00 1.50 FISH P DECOMP Circulate bottoms up at 6 bpm 525 psi. Monitor well bore, Static. Remove blower hose. Sea water weight In 8.5 ppg. Out 8.5 ppg. 15:00 - 19:00 4.00 FISH P DECOMP Pull out of the hole to BHA #1. 19:00 - 19:30 0.50 FISH P DECOMP Stand back drill collars and lay down accerator jars and cross over sub. 19:30 - 20:30 1.00 FISH P DECOMP Break and lay down fish. Recovered K-Anchor and seal bore assembly = 31.50'. Lay down over shot bowl, top extenstion, top sub, and a cross over sub. 20:30 - 22:00 1.50 FISH P DECOMP Pick up BHA #2 consiting of 2.625" packer retrieving tool, ( 2 ) 3.125" extenstions, 8.5" packer mill, triple connection sub, ( 3 ) 6.625" boot baskets, bit sub, bumper sub, oil jar, cross over sub and run in the hole with drill collars from derrick to 329.79'. 22:00 - 00:00 2.00 FISH P DECOMP Run in the hole to 6300'. 7/3/2006 00:00 - 02:00 2.00 FISH P DECOMP Run in the hole from 6300' to 10367'. Install blower hose. Pick 2 singles of 4" dp. Up weight 190k, Slack off weight 160k, Rotating weight 175k, Torque 3-4k, 4 bpm at 400 psi. 02:00 - 05:00 3.00 FISH P DECOMP Tag top of TIW 3 1/2" x 9 5/8" packer with packer retrieving tool at 10396' DPM. Inserting prt 7' into TIW packer. Verify catch by picking up to 200k. Begin milling TIW packer at 10403', 65 rpm, Torque 3-8K, 4 bpm 400 psi. 5-10k on mill. Lost 48 bbls of sea water once packer element was milled up. Only observed a 10k over pull off bottom. 05:00 - 06:00 1.00 FISH P DECOMP Circulate bottoms up at 6 bpm 700 psi. No packer gas at bottoms up. Sea water weight In 8.5 ppg. Out 8.5 ppg. Monitor well bore for 10 minutes Static. Remove blower hose. 06:00 - 12:30 6.50 FISH P DECOMP Pull out of the hole to 330'. Lost 10 bbls of sea water Printed: 7/10/2006 7:22:36 AM e e legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Z-12 Z-12 WORKOVER NABORS ALASKA DRilLING I NABORS 7ES Start: 6/28/2006 Rig Release: Rig Number: 4835 Spud Date: 10/11/1989 End: 7/3/2006 12:30 - 14:00 1.50 FISH P DECOMP Stand back drill collars. Did not recover 9 5/8 TIW packer, but twisted triple connection off, leaving 4.5' ( 2 ) extensions and packer retrieving tool inside packer mill out extension. 14:00 - 15:00 1.00 FISH P DECOMP Pick up BHA #3. Consisting of a 2.625 spear dressed with a 4.010 grapple, cross over sub. Run in the hole with bumper sub, oil jar, pump out sub and drill collars from the derrick to 308.95' 15:00 - 18:00 3.00 FISH P DECOMP Run in the hole to 10364'. Obtain parameters, Up weight 190k, Salck off weight 160k, Breaking circulation 3.5 bpm 18:00 - 19:00 1.00 FISH P DECOMP Obtain parameters, Up weight 190k, Slack off weight 160k, Breaking circulation 3.5 bpm 300 psi. Observed a 300 psi increase at engagement of 9 5/8" TIW packer at 10402'. Bleed pressure off and pick up having a 20k overpull. Monitor well bore, Static loss rate of 168 bbl/hr. 19:00 - 00:00 5.00 FISH P DECOMP Pull out of the hole to 7500'. Drill string coming wet. Drop dart and open pump out sub with 800 psi. Continue to pull out of the hole to 308.95'. Sea water weight In 8.5 pppg. Out 8.5 ppg. No excessive over pull while pulling out of the hole. Sea water lost to RWO last 12 hours = 658 bbls. Sea water lost to RWO last 24 hours = 688 bbls 7/4/2006 00:00 - 01 :30 1.50 FISH P DECOMP Stand back drill collars. Lay down pump out sub, oil jars and bumper jars in one piece. Static loss rate 138 bbll hr 01 :30 - 02:00 0.50 FISH P DECOMP Pre job safety meeting on trapped pressure with all personnel involved, Baker representative, Nabors tool pusher, WSL. 02:00 - 03:00 1.00 FISH P DECOMP Remove make up dies from iron rough neck and install tubing punch. Isolate hydraulic power. Clear floor of all personnel. Operate iron ruff neck from remote location to punch hole in tubing between the 2 X-Nipples on tail pipe. Note: Fluid pressure only. No trapped gas. 03:00 - 04:00 1.00 FISH P DECOMP Release spear and lay down 9-5/8" TIW packer, X-O, 1 joint 3-1/2" tubing, X-Nipple, ( 2) Pup joints, X-Nipple, Pup joint and WLEG. Recovering 77.39' 04:00 - 05:00 1.00 FISH P DECOMP Clean and clear rig floor. 05:00 - 06:00 1.00 FISH DECOMP RIH w/3 stands of drill collars and lay down same. 06:00 - 07:30 1.50 FISH P DECOMP Pick up pump out sub, oil jar and bumper sub. Break out pump in sub and lay down bumper sub and oil jars. 07:30 - 14:00 6.50 FISH P DECOMP PU and RIH w/9-5/8" Halliburton RTTS test packer. Set packer at 10416'. 14:00 - 14:30 0.50 FISH P DECOMP Pressure test 9-5/8" casing x drill pipe annulus to 4000 psi from surface to 10416'. Hold for 30 mins and chart. 14:30 - 15:00 0.50 FISH P DECOMP Release packer and monitor well. 100 bblslhr static losses. 15:00 - 20:00 5.00 FISH P DECOMP POH and LD RTTS test packer. 20:00 - 20:30 0.50 CLEAN P DECOMP RU to run 2-7/8" PAC drill pipe. 20:30 - 00:00 3.50 CLEAN P DECOMP PU 1155.57' cleanout BHA #4 including 4.75" 00 junk mill, x-o sub, 2 boot baskets, bit sub, x-o sub, 6 drill collars, x-o sub, 30 jts. 2-7/8" PAC drill pipe, 2 x-o subs, bumper sub, oil jar, pump out sub, x-o sub back to 4" HT 40 drill pipe. Printed: 7/10/2006 7:22:36 AM e e Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Z-12 Z-12 WORKOVER NABORS ALASKA DRILLING I NABORS 7ES Start: 6/28/2006 Rig Release: Rig Number: 4835 Spud Date: 10/11/1989 End: 7/5/2006 00:00 - 02:30 2.50 CLEAN P DECOMP PU 30 jts 2-718" PAC drill pipe and RIH w/BHA #4. 02:30 - 03:00 0.50 CLEAN P DECOMP RD 2-7/8" PAC handling equipment. 03:00 - 07:30 4.50 CLEAN P DECOMP RIH w/BHA #4 on 4" drill pipe to 10428'. 07:30 - 08:30 1.00 CLEAN P DECOMP Cut and slip 100' of drilling line. 08:30 - 09:00 0.50 CLEAN P DECOMP Service rig and topdrive. 09:00 - 10:30 1.50 CLEAN P DECOMP RIH. 175K Up wt., SO wt. 145K, Tq. off 3K prior to tag up on liner top at 10475'. Rotate and wash through liner top. 132 gpm, 627 psi. Cont. RIH to 11320' and tag up on fill. 10:30 - 14:00 3.50 CLEAN P DECOMP Wash down to 11325'. Pump Hi-Vis sweep, 210 gpm, 1150 psi. Continue washing down f/11325' to 11371'. 55 rpm, 213 gpm, 1430 psi., 4K-6.5K tq. on. At 11371' taking weight without drilling off. Pumped a second high vis pill with no effect. Well bore taking fluid 120 bbl.lhr and slowed to 50 bbllhr while washing and circulating. 14:00 - 15:00 1.00 CLEAN P DECOMP Pump Hi-Vis sweep. 200 gpm. 1150 psi. Work pipe. Up wt. 190K, SO 150K, Rot wt. 175K. 15:00 - 16:30 1.50 CLEAN P DECOMP Pump out of hole to top of liner w/20K overpull several times. Up wt. 210K, 213 gpm, 1150 psi. 16:30 - 18:30 2.00 CLEAN P DECOMP Circulate Hi-Vis sweep surface to surface. Pumping 210 gpm, 1150 psi, until sweep out of drill pipe. Drop dart and open circ sub w/1350 psi. Bring sweep up 9-5/8" x drill pipe annulus to surface at 420 gpm, 750 psi. Small amount of formation sand recovered. 18:30 - 00:00 5.50 CLEAN P DECOMP POH laying down 4" drill pipe f/10428' to 3350'. 7/6/2006 00:00 - 00:30 0.50 CLEAN P DECOMP Safety meeting in pipeshed. WSL, tourpusher, crew. Discussed operational and safety aspects of pipe handling process. Had hands discuss and demonstrate safe operation of skate and all related equipment step by step. Discussed how equipment drop incidents in past had occured and how to avoid like situations. 00:30 - 02:00 1.50 CLEAN P DECOMP POH laying down 4" drill pipe to BHA #4. 02:00 - 03:30 1.50 CLEAN P DECOMP RIH w/4" drill pipe in derrick. 03:30 - 05:00 1.50 CLEAN P DECOMP LD drill pipe from derrick. 05:00 - 09:00 4.00 CLEAN P DECOMP LD 2-7/8" PAC drill pipe, drill collars, and cleanout mill assy. 09:00 - 10:00 1.00 CLEAN P DECOMP RD all drill pipe and 2-7/8" PAC handling equipment and clean rig floor. 10:00 - 10:30 0.50 RUNCO RUNCMP Pull and lay down wear bushing. Make dummy run w/hanger. OK. 10:30 - 12:30 2.00 RUNCO RUNCMP RU 4.5" TC-II completion handling equipment and set up torque turn. 12:30 - 00:00 11.50 RUNCO RUNCMP PJSM wIWSL, tool pusher, all hands. Flowcheck well 12:30ustatic. Run 4.5",12.60#, TC-II, L-80 completion. Monitor makeup to 3850 ft.llbs wltorque turn equipment. 7/7/2006 00:00 - 05:00 5.00 RUNCO P RUNCMP Continue running 4.5", 12.60#, TC-II, L-80 completion f/8372' to 10475'. Up wt. 137K, SO wt. 110K. Monitor makeup to 3850 ft.llbs wltorque turn equipment. 05:00 - 08:00 3.00 RUNCO RUNCMP Tag up on liner top wlmuleshoe, rotate and drop through 20'. Space out wlpups and land tubing hanger w/muleshoe at 10478'. 08:00 - 08:30 0.50 RUNCO RUNCMP Run in lock down screws. RU to reverse circulate inhibited brine and diesel to well. 08:30 - 12:00 3.50 RUNCO RUNCMP Reverse circulate 173 bbls. of seawater to annulus followed by 439 bbls. clean corrosion inhibited seawater wlrig pumps. 3 Printed: 7/10/2006 7:22:36 AM e legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Z-12 Z-12 WORKOVER NABORS ALASKA DRILLING I NABORS 7ES Start: 6/28/2006 Rig Release: Rig Number: 4835 Spud Date: 10/11/1989 End: 14:30 - 15:00 0.50 bpm, 200 psi. 8.5 ppg fluid wt. Reverse circulate 117 bbls. diesel down annulus w/Little Red Hot Oil Svc. pumping at 2 bpm, 200 psi. RUNCMP Close in annulus. Bullhead 33 bbls. diesel down tubing w/Little Red Hot Oil Svc. 2 bpm, 1000 psi final pressure. RUNCMP Drop ball and rod to no shear RHC plug in XN nipple below packer. Pressure up on tubing to 4000 psi to set packer. Hold pressure for 30 mins. wlchart for tubing test. Bleed tubing pressure to 1800 psi, pressure annulus to 4000 psi flannulus and packer test. Hold pressure for 30 mins and chart. RU Drill Site Maintenance and install two way check valve. Test to 1000 psi f/above. Blow down choke and kill lines. Pump out stack wlcellar pump. NO BOP stack. NU andapter and tree and test packoff to 5000 psi. Test tree and adapter to 5000 psi. RU Drill Site Maintenance and install back pressure valve. No gas lift mandrels in tubing string above packer and not possible to test back pressure valve from below. Secure well. Release rig at midnight. 15:00 - 17:30 2.50 17:30 - 20:00 2.50 RUNCMP 20:00 - 21 :30 1.50 RUNCMP 21 :30 - 23:30 2.00 RUNCMP 23:30 - 00:00 0.50 RUNCMP Printed: 7/10/2006 7:22:36 AM AI,ASHA OIL AND GAS CONSERVATION COMMISSION e / / FRANK H. MURKOWSKI, GOVERNOR / / l 333 W. 7'" AVENUE. SUITE 100 ANCHORAGE. ALASKA 99501-3539 PHONE (907) 279-1433 FAJ< (907)276-7542 e ~lrLÄ\lrŒ @~ LÄ\~LÄ\~æLÄ\ Dave Wesley Senior Drilling Engineer BP Exploration (Alaska) Inc. PO Box 196612 Anchorage, AK 99519-6612 \Cóq- ~O'r Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU 2-12 Sundry Number: 306-219 :ªÇ~~NED 2 3 Dear Mr. Wesley: Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. When providing notice for a representative of the Commission to witness any required test, contact the Commission's petroleum field inspector at (907) 659-3607 (pager). As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for rehearing. A request for rehearing is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. A person may not appeal a Commission decision to Superior Court unless rehearing has been requested. DATED this1/- day of June, 2006 Encl. i r-¡'i!\QIJ . ~~TEct~~KA fI~M~!- '@\ ALASKA OIL AND GAS CONSERVATION COMMISSION . JUN 2 0 2006 APPLICATION FOR SUNDRY APPR0'lAlrOiI & Gas Cons. Conmission () 7J' b /2/& 20 AAC 25.280 Anchorage wc,*,- ~/l..J / LoØ(P RECEIVED 1. Type of Request: 0 Abandon o Repair Well o Plug Perforations o Stimulate Convert to Injector o Alter Casing 181 Pull Tubing o Perforate New Pool o Waiver 181 Other o Change Approved Program o Operation Shutdown o Perforate o Time Extension o Re-Enter Suspended W 2. Operator Name: 4. Well Class Bef0)7 Work: 5. Permit To Drill Number BP Exploration (Alaska) Inc. 181 Development 0 Exploratory 189-102/ 3. Address: o Stratigraphic o Service 6. API Number: / P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-21977-00-00 7. KB Elevation (ft): 91.7' 9. Well Name and Number: PBU Z-12/ 8. Property Designation: 10. Field / Pool(s): ADL 047453 Prudhoe Bay Field / Prudhoe Bay Pool iii.· ·..i·...Wi;;.·.W...i.i.·....ic}c}if22....r...Wii...;i;;...· ...F..... i it i...X..... ·.x Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft) Plugs (measured): Junk (measured): 11580 9199 11458 9126 None None Casino Length Size MD /' TVD Burst Collapse Structural Conductnr 117' 20" 117' 117' Surface 2658' 13-3/8" 2658' 2658' 4930 2270 Intermediate 10767' 9-5/8" 10767' 8687' 6870 4760 Production Liner 1102' 5-1/2" 10478' - 11580' 8496' - 9199' 7740 6280 Perforation Depth MD (ft):. I Perforation Depth TVD (ft): I Tubing Size: Tubing Grade: Tubing MD (ft): 11049' - 11338' I 8872' - 9055' 3-1/2",9.2# / L-80 10480' Packers and SSSV Type: 9-5/8" x 3-1/2" TIW 'HBBP' packer I Packers and SSSV MD (ft): 10403' / 12. Attachments: 13. Well Class after proposed work: / 181 Description Summary of Proposal 0 BOP Sketch o Exploratory o Development 181 Service o Detailed Operations Program 14. Estimated Date for JUnN006 15. Well Status after proposed work: Commencing Operations: oOil o Gas o Plugged o Abandoned 16. Verbal Approval: Dà!é: 181 WAG oGINJ oWINJ o WDSPL Commission Representative: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Matt Martyn, 564-4101 Printed Name ,pave Wesley Title Senior Drilling Engineer Prepared By Name/Number: SiqnatureÆ~ ~ /J (.) Phone 564-5153 Date (p!ZJJ /06 Terrie Hubble, 564-4628 , / ð Commission Use Only Conditions of approval: Notify Commission so that a representative may witness I Sundry NumberL'hI... ;;2.1"1 o Plug Integrity ~OP Test ~echanicallntegrity Test o Location Clearance T~c,.t ßOP~ +-0 ~SOO ý'~, " ;:T "7t:~ d · Or; ~t..l1Wt. t fo l.o A-A-l 1':>.412.. Lb) 111'.1., Ólf \J.~I't:tJ;l.u<"'.' ~ ~pw" f-L S"b",,,""", Fooo Req";red, W ~ R8DMS BFL JUN 22 2DOIi Approved By: ~ APPROVED BY Date ($- ;¡',dl . COMMISSIONER THE COMMISSION Fooo 10A03 Rev;,ed 07f200>-1J'R Ib kfN A L I Submit In Duplicate e e Well Status: Well 2-12 was originally drilled and completed 11/89. It was a stable producer through the 1990's, although at an elevated GOR and an elevated watercut. The well was shut in much ofthe time from mid 1998 due to high watercut, low oil rate and a marginal TGOR. Recent upper zone 4 add perfs had minimal effect. The well is currently shut in and has slow IA x OA communication that is managed by /' bleeds. Project: The scope of work includes a chemical cut of the tubing above the packer, pulling the existing 3.5" L-80 tubing, replace 9 5/8" packoff, milling and recovering the packer, and running new 4.5" premium thread L-80 tubing with a single packer. The 9 5/8" casing is thought to have integrity based on information currently available, but further testing is planned to fully confirm this. A RWO scope revision will be required if the 9 5/8" casing is determined to need additional repair beyond packoff replacement. Area Review / There are no wells within 1;4 mile radius of 2-12. The cement job on the 5-Yz" liner went smoothly and was logged in November, 1989. Attached is a photocopy of the relevant section ç¡fthat log showing good cement isolation between the 9-5/8" casing shoe at 10,767' md and the top perforation at 11,049' md. Pre-RWO 1. Check wellhead seals and lock down screws. 2. Set FasDrill plug in tubing tail just below packer (~l 0,463' md). 3. Chemical Cut 3Yz" tubing above packer (~10,370' md). 4. Circulate well clean with seawater and freeze protect with diesel. 5. Pressure test TxIA 6. Set BPV in tubing hanger / 7. Remove well houses and flow lines. Prepare pad for rig. / RWO 1. MIRU work over rig. 2. Pull BPY. Circulate out diesel freeze protect. Circulate to seawater (kill weight fluid). 3. Install TWC and test. ND tree and tubing head adapter flange. 4. NU BOPE and test per BP and AOGCC regulations. Test the BOPE to 250 psi low and 3500 psi /' high. Test the annular to 250 psi low and 3500 psi high. Pull the TWC with lubricator 5. PU landing joint or spear and make-up into the tubing hanger. Pull and lay down the tubing hanger. 6. Pull and lay down the 3Yz"- 9.2#, L-80 tubing to the cut @ ~10,370 ft md. / 7. Set RTTS packer and replace 9-5/8" casing packoff. . 8. Pressure test 9-5/8" casing to 3500 psi for 30 minutes. /' 9. RIH and mill & retrieve 9-5/8" x 3-Yz" packer. /. 10. RIH wi scraper & cleanout 9-5/8" casing to tubing stub. 11. RIH wi ~1,100' of 2-7/8 PAC and mill to clean out the 5-Yz" liner to ~11,500' MD. 12. Run 4-Yz", 12.6 #/ft, 13 Chrome premium thread tubing. /' 13. Freeze protect IA and tubing to ~2200'. 14. Drop the ball and rod. Set the packer. 15. Test the tubing and IA to 3500 psi for 30 minutes. 16, ND BOPE and NU adapter flange and tree. Test to 5000 psi. 17. RDMO workover rig, /' Post-RWO 1. Pull ball and rod from RHC sleeve. 2. Pull RHC sleeve. 3. Tie-in flow lines, replace well houses, and instrumentation. COMPANY WELL ~ - > ~ ~ ~ FIELD ... O't 0 .... ~ ; ~ ~ BOROUGH ô .... ~ x f. : .... i ~ 98)' fN.. . 349 ~ " " . 8 AT SUflFACE: ., 0 íiI 4 :» .. <C-- ; a ~ ~ ì API SERIAL NO. I .: g ;a " 50-029-21977· Perm_non. ø.tum M.S>L -~ LoO ..........d From UF DrIUnO Mea......ð From o.F D.t. 03·NOV·1989 Run No. ONE ----.-.-- ---- Deptft D..... 11458.0 F DopU. L"""... CScnt.) 11469.0 f DIIft. L01Ilnt",vat 11433.0 F Top LoO InI00v.' 10498.0 F Typ. Fluid In HoI. NACL BAINE Salinity ,¡;ç,--- --- D.nslty 9.30 LB/G Fluid Lev., ~-- Max. R.c. T.mp. 229 DEGF Devl.tlon --. ~- L01IOO' on Bollom 07:14 NOV 3 Equip. ~~ 8~_ R.cord.d Dy D. WARNER W'tn....d Dy D. FARGO --- --.- CASING -- .. SIz. 9 6/8' Wëïfllll -- 47.0000 LB/F C.....O Top-Ol.,., 0.0 f C.oI"" Top-L01IOor 0.0 F C.alø 1_·0'.... c.."", Iftoo-L01IGar ID ." ~ -"( g iñ m c ,.. r- 3: 0 c r- , C ) Ci) 2 :I: .. Z ~ N a: 0 ;J3 " ::0 § rr -I ;;> )( :I: :r ,~ (J) 0 ~ r- m c; 0 to W ~ ~ > ~ > m -< j () ~ 7 (b -I > -I m > r- > (J) ;><: > '" è '" 0 .. " Ii (' ~ r- ~ '!' r r " !;I " ... ., .. r- III è co % , ; If ¡ , (, :'JÎl ' 5:,~; :); :;;, ': *t' .~ .'~"":". /'/ ,:'~ 1 t ¡Iii . ~ 't . . , /. ., J. (Ilil f':(.~.Vd tI: , \') jn .:..~. .í.,,.. ). C''-~''r ':. ~ ,~ ',' ',," f· . f(fi'· ., ; ì ,f~-ì~ I;' '." , "~,' ·..r L.!. J;~;., ","') '.;.>" ~: .~;:->: ~.l: .. ~ f rr~~i:¡ \~:....~<"\ .., , "~J. t "'i'-);"-~ 'I!..~-.;""': "'::'~ ': L .' "- ,1;', f t ¡ f i # í . ,.....1 f' I 1 } , r, ~ . H¡ f i ~ Ulì )1.1 , . ~. t , 1;." '1 .... ! 1 ( m ., t i ( : I I ~~~. --'--t-- -~-i- f:-L.j .... :~:. .. ,.... ,... :: ~='.: .. ---~~ ¡ 9 5/8" -t--- t'· ~t·_·.,-..-" ,-' ..._ ,. ~..' --1''''':;- ·..·i· ...þ ; - 10800 ., I···· . .-1- .¡ ... i '.1 I ---,.._- .....- --- ._; ..- .... -. ---. : ... .>J. ¡ S f-'--- ., -.--_...,......5 f- '.'-'-, __, __ h' . ..- .... ¡ ....-, .-+-- ....·1 ~.. -.-.. :--i..~. ..., ---, -·--1 ..... .;:r;=.:¡::;:: .. ::c: ~:i';" ",.i I... .. ... .-- ., ...... ..- _.; . -..-- ¡ ..... .. _._+ ~'r¡1 _.~:....¡..! 1 - -:::. .!:.~"" ~ -- .... 1 1 10900 " I 1----;< ~ 1"1 ,~.. i--" -I·····,······, _.. '~ ~__m ~ ~_. ~: .~ ;;; ::f;: M:.. :,~ 1-· -.+ .··i" .-¡ ::::>1 ¡ ¡ M C,,¡ , :: :: -'~:i::='~;5' '.'.,.' , ; ; 5··,·· I:. ........ .... --,.--,-, . b,.1. --.- -"'~ _..L__· .:,.. ;-; '-:; .. '..;d::.- ·n --':= =.¡:~ 1.' .......,~-, ..~i ._. _..__ _n' . . ._.. {':, ' I···· '-.,,,.--, ;i: ~ I I··.. .-., i ! 11000 1- ,-: ,__ i( ... ......1 :"; ,.~ .~i . -i·· :: - I .., : '. ....,j ,.-,-=.' .. I -.. ..... .., .. iè:;:'"' ,::;.., ,;;:;'-1 _.¡.._- .~.¡. L·-· -1' -\ _. .-"'" >--1 - ~ +-- r . TRÉE = 3-1/8" MCEVOY WELLHEAD = FMC ACTUA TOR = BAKER KB. ELEV = 91.7' BF. ELEV = 55.74' KOP = 3600' Max Angle = 49 @ 11100' Datum MD = 11079' Datum 1VD = 8800' SS e 13-3/8" CSG, 68#, L-80, ID = 12.415" I 2658' Minimum ID = 2.750" @ 2107' 3-1/2" OTIS SSSV NIPPLE 13-1/2" TBG, 9.2#, L-80, .0087 bpf, ID = 2.992" I 1 TOP OF 5-1/2" LNR 10480' 10478' 9-5/8" CSG, 47#, NT-80S, ID = 8.681" ) 10767' PERFORA TION SUMMARY REF LOG: CBT ON 11/3/89 ANGLE AT TOP PERF: 49 @ 11049' Note: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz DA TE 2-1/4" 6 11049 - 11069 0 04/09/05 2-1/8" 6 11096 - 11134 0 12/21/04 2-1/8" 6 11143 -11156 0 07/10/94 2-1/8" 6 11161 -11172 0 07/10/94 2-1/8" 6 11178-11190 0 07/10/94 2-5/8" 4 11190 - 11206 0 07/10/94 2-1/8" 6 11216 -11228 0 07/10/94 2-1/8" 6 11238 - 11250 0 07/10/94 3-3/8" 4 11250 - 11280 0 07/10/94 3-3/8" 4 11290-11300 0 07/10/94 3-3/8" 4 11314-11338 0 07/10/94 I PBTD I 11580' 11458' 15-1/2" LNR, 17#, L-80, .0232 bpf, ID = 4.892" DATE 11/09/89 05/18/01 01/08/01 05/06/04 12/21/04 07/09/05 REV BY COMMEl\JTS ORIGINAL COM PLETION RNlTP CORRECTIONS DAV/KK GLV C/O KSB/KAK GLV C/O LDG/TLP ADD PERF KDC/PJC GLV C/O Z-12 . DA TE REV BY COMMEl\JTS 01/26/06 DBR/TLH ADD PERF (04/09/05) I S.OTES: 2107' -i3-1/2" OTIS SSSV LAND. NIP, ID = 2.75'" GAS LIFT MANDRELS ST MD 1VD DEV TYÆ VLV LA TCH PORT DATE 6 2990 2990 1 OTIS DOME RM 16 07/09/05 5 6009 5498 47 OTIS SO RM 20 07/09/05 4 8153 6943 48 OTIS DMY RA 0 01/08/02 3 9347 7742 47 OTIS DMY RA 0 01/08/02 2 10194 8306 47 OTIS DMY RA 0 01/08/02 1 10350 8408 48 OTIS OMY RA 0 01/08/02 10379' 3-1/2" OTIS X NIP, 10 = 2.750" I 10388' TIW PBR SEAL ASSY I 10403' -i 9-5/8" X 3-1/2" TIW HBBP PKR, 10 = 2.992" 10447' 3-1/2" OTIS X NIP, ID = 2.750" I 10468' 3-1/2" OTIS X NIP, 10 = 2.750" I 10480' - 3-1/2" WLEG 10491' H ELMD TT LOGGED 08/06/93 11087' -iMARKERJOINT I 11218' - MARKERJOINT I PRUDHOE BA Y UNIT WELL: Z-12 ÆRMIT No: '1891020 API No: 50-029-21977-00 SEC 19, T11N, R12E, 981' FNL & 3494' FEL BP Exploration (Alaska) TREE = 4-1/16" Cameron "WELLHEAoD = FMC A CTUA TOR = BAKER KB. ELEV = 91.7' BF. ELEV = 55.74' KOP = 3600' Max Angle = 49 @ 11100' Datum MD = 11079' Datum TVD = 8800' SS Z-1t RWO Proposd!tt Completion 13-3/8" CSG, 68#, L-80, ID = 12.415" I 2658' Minimum ID = 3.725" @ 10446' 4-1/2" XN-NIP I TOP OF 5-1/2" LNR I 14-1/2" TBG, 12.6#, L-80, TG-II, 10 = 3.958" 9-5/8" CSG, 47#, NT-80S, 10 = 8.681" I PERFORA TION SUMIIt1ARY REF LOG: CBT ON 11/3/89 ANGLE AT TOP PERF: 49 @ 11049' Note: Refer to A"oduction DB for historical perf data SIZE SPF INTERV AL Opn/Sqz OA TE 2-1/4" 6 11049 - 11069 0 04/09/05 2-1/8" 6 11096-11134 0 12/21/04 2-1/8" 6 11143 -11156 0 07/10/94 2-1/8" 6 11161 -11172 0 07/10/94 2-1/8" 6 11178 -11190 0 07/10/94 2-5/8" 411190-11206 0 07/10/94 2-1/8" 6 11216 -11228 0 07/10/94 2-1/8" 6 11238-11250 0 07/10/94 3-3/8" 4 11250 - 11280 0 07/10/94 3-3/8" 4 11290-11300 0 07/10/94 3-3/8" 4 11314 -11338 0 07/10/94 I PBTO I 11580' 11458' 15-1/2" LNR, 17#, L-80, .0232 bpf, 10 = 4.892" DATE 11/09/89 05/18/01 01/08/01 05/06/04 12/21/04 07109/05 REV BY COMMENTS ORIGINAL COM PLETION RN/TP CORRECTIONS DAV/KK GLV C/O KSB/KAK GLV C/O LDGlTLP ADD PERF KDClPJC GLV C/O -2100' MD -i 4-1/2" X-NIP, 10 = 3.813" 10338' -1 4-1/2" X-NIP, 10 = 3.813" 10400' 10424' 10446' 10498' -19-5/8" X 4-112" S-3 PKR, ID = x.xxx" -i 4-1/2" X-NIP, ID = 3.813" I -1 4-112" XN-NIP, 10 = 3.725" I -14-112" WLEG 11087' -1I1t1ARKER JOINT I 11218' -IIIt1ARKERJOINT I OA TE REV BY COMMENTS 01/26/06 OBRlTLH ADD PERF (04/09/05) 06/20/06 MJM A"oposed RWO Completion PRUDHOE BA Y UNIT WELL: Z-12 PERMIT No: ~ 891 020 API No: 50-029-21977-00 SEC 19, T11 N, R12E. 981' FNL & 3494' FEL BP Exploration (Alaska) e e MECHANI CAL INTEGRITY REPORT· "' ':?UD G.:'::::: \0[111 tq-@c¡-' ?~G REL.s;.S:::: . --.l.Lt O"'/ICf9Ct OPER Ex FIELD . ß p p p",u.. w"Eli NUMJ3ER t - 1'- (it¡ ~ 10 Z- :",!:.LL DATA TD : 1It;-fo Jill.. Q/9Cf TVD; :?BTD: 1145'-f !ill q /2ÚJ TVD Casi~g: 9~r;1¡ \ Shoe: I07~7 ill) f(p 87 TVD¡ DV: HI) ·Tvu S 'I " Shoe: liS ft:) MD ql q c¡ TVD¡ :CP: 10 41 f r·m f4ct& :7D _::..:¡e::-: . L S ~ (Iz. '/ ~O? ::Joi:--:g: Packe!:" 104J>o till TVD; See êt /2. ~ 1/4 /' ~" 'lL .. llo4'i I tI3')J1' ::'a1e Size ana P er£ s to ::-:ECP.Þ..NIC:'.L INTEGRITY - PART n Annulus Press Test: 7~ 15 min 30 min Corrr:m.ents: MIT "''''Zu:.¡..-.e d . ...-- ~CHÞ_1"ncþ..l.. INTEGRITY - PART /2 Cement Volumes:' ,Amt. Liner 4c;~ f2.t1 ; Csg 2;t',s f,.f'f ; DV CiIit -,)'01 to cover perfs 1"7 t{.) v-uð!..\.A:"-t'l to (ØV~y' Þt:Ltu'vt-. + 500 I (iJ ?oZ ~c.eSç. Theoretical Toe l004'2-' ~ ~o2, U-œc...$.. Cement Bond Log (Yes or No) V CEL ~valuation, zone above perfs ; In AOGeC File .../ ~ CßT dA.:t~ d 1/' ;!,Q¡" Produ~tion Log: Type Ark? IùVk b (1-.,/"rJ¡ ~ ;Þ\.-Jk.-. i J o Evaluation .. CONC;LUSIONS: ? ar t 11, III rT 'r-lr/"; \A( ~ ' ? ar:: : Z : AtJ,¡ I,t '.i< ~,I- Ih.Ù C t,.p d ~.(O ç~ ~ t; Otr,j"J d..,,1R r2t~'W'o. M..V.IlJ' ~p ~ov~ (¿, I ¡ 1 7.øOO{() . W-6~ . ~..,A, tJ ."1 [;,Jytt- Ii'VIf , ( - .) '.) RECEIVED STATE OF ALASKA 2.005 ALASKA OIL AND GAS CONSERVATION COMMISSION MAY 2 5 REPORT OF SUNDRY WELL OPERATAGN&G~scons.commission Al\thQ{~gQ Stimulate 0 OtherD waiverD Time Extension 0 Re-enter Suspended WellD 1. Operations Performed: Abandon 0 Alter Casing 0 Change Approved Program 0 2. Operator Name: 3. Address: Repair Well 0 PluQ PerforationsD Pull Tubing 0 Perforate New PoolD Operation Shutdown 0 Perforate [K 4. Current Well Class: Development [!] Exploratory 0 5. Permit to Drill Number: 189-1020 6. API Numbe 50-029-21977-00-00 BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, Ak 99519-6612 7. KB Elevation (ft): 91.70 8. Property Designation: ADL-047453 11. Present Well Condition Summary: Stratigraphic 0 ServiceD 9. Well Name and Number: Z-12 10. Field/Pool(s): Prudhoe Bay Field / Prudhoe Oil Pool Total Depth measured 11580 feet true vertical 9198.9 feet Effective Depth measured 11316 feet true vertical 9041.2 feet Casing Conductor Li ner Production Surface Perforation depth: Length 80 1102 10732 Plugs (measured) Junk (measured) None None Size 20" 91.5# H-40 5-1/2" 17# L-80 9-5/8" 47# NT80S 13-3/8" 68# L-80 MD TVD Burst Collapse 37 117 37.0 117.0 1490 470 10478 - 11580 8496.1 - 9198.9 7740 6280 35 - 10767 35.0 - 8686.6 6870 4760 36 - 2658 36.0 - 2658.0 4930 2270 Measured depth: 11049 - 11069, 11096 - 11135, 11143 - 11156, 11161 - 11172, 11178 - 11190, 11190 - 11206, 11216 - 11228 11238 - 11250, 11250 - 11280, 11290 - 11300, 11314 - 11338 True vertical depth: 8872.44 - 8885.45,8902.93 - 8928.02,8933.13 - 8941.43,8944.61 - 8951.59,8955.39 - 8962.98,8962.98 - 8973.06 8979.34 - 8986.85,8993.09 - 9000.55,9000.55 - 9019.11,9025.26 - 9031.39,9039.95 - 9054.55 TubinQ ( size, Qrade, and measured depth): 3-112" 9.3# L-80 @ 33 10480 Packers & SSSV (type & measured depth): 3-1/2" TIW HBBP Packer @ 10403 SCANNED MAY 2 1 2005 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Garry Catron Printed Name Garry Catron ;Jd~ ~ 13 Prior to well operation: Subsequent to operation: 14. Attachments: Copies of Logs and Surveys run_ Daily Report of Well Operations_ Signature Form 10-404 Revised 4/2004 Oil-Bbl 8 232 Representative Daily Average Production or Injection Data Gas-Met Water-Bbl Casing Pressure 1 918 1500 5.6 4457 1500 Tubing Pressure 302 313 ~ 15. Well Class after proposed work: ExploratoryD 16. Well Status after proposed work: OilŒ] GasD WAG D GINJD WINJD WDSPLD Prepared by Garry Catron (907) 564-4657. Sundry Number or N/A if C.O. Exempt: NIA Development [!] Service D Title Production Technical Assistant Phone 564-4657 Date 5/20/05 JU~·'l1 CATi:. ) ') Z-12 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 04/09/05 Perforate 110491.1106916 SPF FLUIDS PUMPED BBLS No Fluids Pumped o ITOTAL Page 1 TREE = 3-1 /8" MCEV OY WELLHEAD-= FMC ÄCTuÄfoR~" "" BAkÈR 'kB,'äE\ï';' " , , , ~H.i BF. ELEV = 55.74' k'6Þ'; , "'" "'3660; . ... . ... . . ......."...""""".."."........"."..".... Max Angle = 49 @ 11100' DatUmMÖ;' ,"" ' " , '1167'9" DatumWÖ; "'ä¿ÒëfSS ) 13-3/8" CSG, 68#, L-80, ID = 12.415" 1-1 2658' Minimum ID = 2.750" @ 2107' 3-1/2" OTIS SSSV NIPPLE 13-1/2" TBG, 9.2#, L-80, .0087 bpf, ID = 2.992" 1-1 10480' I TOP OF 5-1/2" LNR 1-1 10478' 9-5/8" CSG, 47#, NT-80S, ID = 8.681" 1-1 10767' ÆRFORA TION SUMMARY REF LOG: CBT ON 11/3/89 ANGLE AT TOP ÆRF: 50 @ 11096' Note: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz DA TE 2-1/8" 6 11096-11134 0 12/2,1/04 2-1/8" 6 11143-11156 0 07/10/94 2-1/8" 6 11161 - 11172 0 07/10/94 2-1/8" 6 11178-11190 0 07/10/94 2-5/8" 4 11190 - 11206 0 07/10/94 2-1/8" 6 11216-11228 0 07/10/94 2-1/8" 6 11238-11250 0 07/10/94 3-3/8" 4 11250 - 11280 0 07/10/94 3-3/8" 4 11290 - 11300 0 07/10/94 3-3/8" 4 11314-11338 0 07/10/94 1 PBTD 1-1 11458' 15-1/2" LNR, 17#, L-80, .0232 bpf, ID = 4,892" 1-1 11580' DA TE REV BY COMMENTS 11/09/89 ORIGINAL COM PLETION 05/18/01 RNlTP CORRECTIONS 01/08/01 DAV/KK GLV ClO 05/06/04 KSB/KAK GLV C/O 12/21/04 LDG/TLP ADD PERF ~ DA TE REV BY Z-12 e L J l I z ---1 I I I I I Ii Z ! , ~ ~ SAF. ~OTES: 2107' 1-13-1/2" OTIS SSSV LAND. NIP, ID = 2.75" 1 ~ ST 6 5 4 3 2 1 GAS LIFT MANDRELS MD TVD DEV TYÆ VLV LATCH 2990 2990 1 OTIS DOME RM 6009 5498 47 OTIS SO RM 8153 6943 48 OTIS DMY RA 9347 7742 47 OTIS DMY RA 10194 8306 47 OTIS DMY RA 10350 8408 48 OTIS DMY RA 10379' 1-1 3-1/2" OTIS X NIP, ID = 2.750" 1 10388' 1-1 TIW PBR SEAL ASSY 1 PORT DATE 16 05/06/04 20 05/06/04 o 01/08/02 o 01/08/02 o 01/08/02 o 01/08/02 10403' 1-19-5/8" X 3-1/2" TIW HBBP PKR, ID = 2.992" 10447' 1-1 3-1/2" OTIS X NIP, ID = 2.750" 1 10468' 1-1 3-1/2" OTIS X NIP, ID = 2.750" I 10480' 1-1 3-1/2" WLEG 10491' 1-1 ELMD TT LOGGED 08/06/93 I ... I I 11087' 1-1 MA RKER JOINT 1 ~ I 11218' 1-1 MA RKER JOINT 1 I I COMMENTS PRUDHOE BA Y UNIT WELL: Z-12 PERMIT No: 1891020 API No: 50-029-21977-00 SEC 19, T11N, R12E, 981' FNL & 3494' FEL BP Exploration (Alaska) Schlumberger Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 A TTN: Beth )~C¡-(02- /. \-"'""" ~'."""a-' 03/15/05 NO. 3363 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Helen Warman 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Color .~ Well Job # Log Description Date Blueline Prints CD I q 3 -rlN C-39 10715421 MCNL 08/19/04 1 'Ý (O-R<? E-21A 10670030 MCNL 08/22/04 1 l..9c;-170 C-29A .~ 10715422 MCNL 08/22/04 1 J' ).0'3· i/.?-DS 07-338 10715361 MCNL 11/04/03 1 1 /97-153- 07-01A 10889151 RST 08/18/04 1 1 ~f...wc¡ X-27 10724364 RST 03/10/04 1 1 .~ t-:: E-18A 10621786 RST OS/22/04 1 1 !.~7:C.'.~·l DS 01-24A 10563108 RST 10/09/03 1 1 , ). :;:!. E-10A 10621797 RST 06/16/04 1 1 J7i9 -/02- Z-12 10704020 RST 07/06/04 1 1 ~DI- OC¡ I X-15A 10704021 RST 07/07/04 1 1 1:ÞI..~) 1 P1-07 A 10831301 RST 07/03/04 1 1 ~'1;7.. 07ð:G-03A 10889210 LDL 02/13/05 1 :z.t;L{. "l.l, L5-17 A 10942195 PSP PPROF/DEFTlGHOST 02/28/05 1 ! (-/'; ... fJJ1 P1-05 10687701 PPROF PSP/DEFT/GHOST 08/13/04 1 l(¡t./·r;¿t MPC-42 10889141 RST 07/26/04 1 ?[,:tj.{JÚ MPC-42 10621815 RST 08/07/04 1 -' PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COpy EACH TO: BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 ßCANNED Þ1PH cl 8 2005 Date Delivered: 31 I - /1 w / 0 5' Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-28/~8 ATTN: Beth / ReceiV~,f ~ a/¿44<ßN--' ,'" ) STATE OF ALASKA ) ALASKA Oil AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed: Abandon D Alter Casing D Change Approved Program D Repair Well 0 PluQ PerforationsD Pull Tubing 0 Perforate New Pool D Operation Shutdown 0 Perforate [K] Stimulate D waiverD OtherD Time Extension D Re-enter Suspended Well D 5. Permit to Drill Number: 189-1020 6. API Number 50-029-21977-00-00 2. Operator Name: 3. Address: 91.70 8. Property Designation: ADL-0047453 11. Present Well Condition Summary: 4. Current Well Class: Development ŒJ Stratigraphic D 9. Well Name and Number: Z-12 10. Field/Pool(s): Prudhoe Bay Field / Prudhoe Oil Pool ExploratoryD Service D BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, Ak 99519-6612 7. KB Elevation (ft): Total Depth measured 11580 feet true vertical 9198.9 feet Plugs (measured) None Effective Depth measured 11316 feet true vertical 9041.2 feet Junk (measured) None Casing Conductor Production Surface Length 80 10732 2622 Size 20" 91.5# H-40 9-5/8" 47# NT80S 13-3/8" 68# L-80 MD TVD 37 117 37.0 - 117.0 35 - 10767 35.0 - 8686.6 36 - 2658 36.0 - 2658.0 Burst 1490 6870 4930 Collapse 470 4760 2270 Perforation depth: Measured depth: 11096 -11135,11143 -11156,11161 -11172,11178 -11190,11190 -11206,11216 -11228,11238 -11250 11314 - 11338 True vertical depth: 8902.93 - 8928.02,8933.13 - 8941.43,8944.61 - 8951.59,8955.39 - 8962.98,8962.98 - 8973.06,8979.34 - 8986.85 8993.09 - 9000.55, 9000.55 - 9019.11, 9025.26 - 9031.39, 9039.95 - 9054.55 Tubing ( size, grade, and measured depth): 3-1/2" 9.3# L-80 @ 33 10480 Packers & SSSV (type & measured depth): 3-1/2" TIW HBBP Packer @ 10403 FEB 0 3 Z005 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: Representative Daily Average Production or Injection Data Gas-Met Water-Bbl Casing Pressure 1.4 2931 0 2.6 9185 0 SCANNED FEB 0 4 2005 13 Prior to well operation: Subsequent to operation: Oil-Bbl 81 183 Tubing Pressure 319 270 14. Attachments: Copies of Logs and Surveys run- Daily Report of Well Operations - ! 15. Well Class after proposed work: Exploratory 0 16. Well Status after proposed work: OilŒJ GasD Development ŒI Service D 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Garry Catron Printed Name Garry Catron Jjr~ WAG D GINJD WINJD WDSPLD Prepared by Garry Catron (907) 564-4657. Sundry Number or N/A if C.O. Exempt: N/A Title Production Technical Assistant Signature Phone 564-4657 Date 1/27/05 RDDMS Dfl, FEB 0 4 2005 Form 10-404 Revised 4/2004 ') ) Z-12 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 12/21/04 PERFORATE 11096 - 11134 FT WITH 2.25" HSD PJ 6 SPF GUNS TIE IN LOG IS SWS CEMENT EVALUATION LOG DATED 3-NOV-1989 FLUIDS PUMPED BBlS I No Fluids Pumped 0 I TOTAL FEB 0 3 2005 Page 1 T$EE.=,,3-1/8" MCEVOY WELLHEA D = FMC ,.".",,,.,,_~,,uu"n,.,,,,,,,,.~u,,,,,,,"'~"'''m,,u'''rl>..,,,".<r<,., _,,,,,mum ACTUATOR = BAKER ïÜi'ËLêl;' 'gff '''B^F~WE[§r;O'~Nm.,'m'"N..''_'"m55:j4; 'KoÞ-;""-"-"'" ''''36ÚÖ' Max Angle = 49 @ 11100' Datum MD = 11079' '~l5ãiuñïn,T6~;"m~mm"""88ÕÕÎ-SS ) 13-3/8" CSG, 68#, L-80, ID = 12.415" 1-1 2658' ~ Minimum ID = 2.750" @ 2107' 3-1/2" OTIS SSSV NIPPLE 13-1/2" TBG, 9.2#, L-80, .0087 bpf, ID = 2.992" 1-1 10480' 1 I TOP OF 5-1/2" LNR 1-1 1 0478' ~ r 9-5/8" CSG, 47#, NT-80S, ID = 8.681" Ii 10767' 1 PERFORA TION SUMMARY REF LOG: CBT ON 11/3/89 ANGLE AT TOP PERF: 50 @ 11096' Note: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz OA TE 2-1/8" 6 11096-11134 0 12/21/04 2-1/8" 6 11143-11156 0 07/10/94 2-1/8" 6 11161 -11172 0 07/10/94 2-1/8" 6 11178-11190 0 07/10/94 2-5/8" 4 11190-11206 0 07/10/94 2-1/8" 6 11216 - 11228 0 07/10/94 2-1/8" 6 11238 - 11250 0 07/10/94 3-3/8" 4 11250 - 11280 0 07/10/94 3-3/8" 4 11290 - 11300 0 07/10/94 3-3/8" 4 11314-11338 0 07/10/94 I PBTD 1-1 11458' 1 15-1/2" LNR, 17#, L-80, .0232 bpf, ID = 4.892" 1-1 11580' 1 DA TE REV BY COMMENTS 11/09/89 ORIGINAL COM PLErION 05/18/01 RNlTP CORRECTIONS 01/08/01 DAV/KK GLV C/O 05/06/04 KSB/KAK GLV C/O 12/21/04 LDG/TLP ADD PERF DA TE REV BY Z-12 8 l J l I I :8: Z--1 I I I I f \ 'I .4 ~ SAR. .. }OTES: 2107' 1-13-1/2" OTIS SSSV LAND. NIP, ID = 2.75" 1 ~ ST 6 5 4 3 2 1 GAS LIFT MANDRELS MD TVD DEV TYÆ VLV LATCH 2990 2990 1 OTIS DOME RM 6009 5498 47 OTIS SO RM 8153 6943 48 OTIS DMY RA 9347 7742 47 OTIS DMY RA 10194 8306 47 OTIS DMY RA 10350 8408 48 OTIS DMY RA I 10379' 1-1 3-1/2" OTIS X NIP, 10 = 2.750" 1 I 10388' 1-1 TIW PBR SEAL ASSY I PORT DATE 16 05/06/04 20 05/06/04 0 01/08/02 0 01/08/02 0 01/08/02 0 01/08/02 10403' 1-1 9-5/8"X 3-1/2" TIW HBBP PKR, 10 = 2.992" 1 10447' 1-1 3-1/2" OTIS X NIP, ID = 2.750" 1 10468' 1-1 3-1/2" OTIS X NIP, ID = 2.750" 1 I ~ 10480' 1-1 3-1/2" WLEG 10491' 1-1 ELMD TT LOGGED 08/06/93 I I I 11087' l-f MA RKER JOINT I t I 11218' 1-1 MARKER JOINT 1 I I FEB 0 3 2005 PRUDHOE BAY UNIT WELL: Z-12 ÆRMIT No: 1891020 API No: 50-029-21977-00 SEe 19, T11N, R12E, 981' FNL & 3494' FEL COMMENTS ¡; ¡. ..: BP Exploration (Alaska) THE MATERIAL UNDER'THIS COVER HAS BEEN MICROFILMED ON OR BEFORE OCTOBER 24, 20.00 E E C:LORBMFILM.~ Pl~ E W M A TE R IA L U N D ER TH IS M A R K E R STATE OF ALASKA Al':. .... ,A OIL AND GAS CONSERVATION COMMIS, REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown Stimulate Plugging Pull tubing Alter casing Repair well Perforate X Other 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 981' SNL, 1786' EWL, SEC. 19, T11N, R 12E At top of productive interval 820' SNL, 3653' WEL, SEC. 30, T11N, R12E At effective depth 1136' SNL, 3723' WEL, SEC. 30, T11N, R12E At total depth 1234' SNL, 3739' WEL, SEC. 30, T11N, R12E 12. Present well condition summary Total depth: measured true vertical 5. Type of Well: Development X Exploratory Stratigraphic Service 6. Datum elevation (DF or KB) KBE=91.74 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number Z-12(21-30-11-12) 9. Permit number/approval number 89-102 / 10. APl number 50- 029-21977 11. Field/Pool Prudhoe Oil Pool 11580 feet Plugs (measured) 9199 feet Effective depth: measured true vertical 11458 feet Junk (measured) 9127 feet Casing Length Structural -- Conductor 117 Surface 2622 Intermediate 10731 Production -- Liner 1102 Perforation depth: measured Size Cemented 3716 c.f. Permafrost 2365 c.f. C/ass G 20 13 3/8 9 5/8 5 1/2 458 c.f. Class G 11250' - 11280', 11290' - 11300', 11314' - 11338' Measured depth 153 2658 10767 10478-11580 True verticaldepth BKB 153 2658 8686 8496-9199 true vertical subsea 8908'- 8927', 8933'- 8939', 8948'- 8962' Tubing (size, grade, and measured depth) 3 1/2" 9.2# L-80 @ 10480' Packers and SSSV (type and measured depth) Packer @ 10403' & SSSV@2107' AUG ;50 ]995 Alaska 0il & Gas Cons. Commission Anchorage 13. Stimulation or cement squeeze summary See Attachment Intervals treated (measured) Treatment description including volumes used and final pressure 14. Representative Daily Average Production or Injection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Prior to well operation Subsequent to operation 1104 3510 1848 0 1686 9393 1884 0 27O 331 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil X Gas Suspended Service 7. I hereby c,ertify that the fo~g ~ and c~orrect to the best of my knowledge. Signed,,~_.x /~v_.~- - /,/--/ ~/,~ Title Senior TechnicalAssistant II Form 10-404 Rev 06/15/88 /' Date (~/~//~.~ SUBMIT IN DL~PLI~,ATE 5/07/94 7/10/94 WELL Z-12 (21-30-11-12) Addperf Operation The following additional interval were perforated using 2 1/8" 6 SPF, 0° orientation and 0° phasing. 11216'- 11228' MD 11238' - 11250' MD The following additional interval were perforated using 2 1/8" 6 SPF, 0° orientation and 0° phasing. 11143'- 11156' MD 11161'- 11172' MD Flease sign and return to: Petrotechnical Data ~',ter BP Exploration (Alask~j Inc 900 East Benson Boulevard Anchorage, Alaska 99508 Received by. m +~L's"~fLASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Date: 19 July 1994 RE: Transmittal of Data Sent by: ANCHORAGE EXPRS Dear Sir/Madam, Enclosed, please find the data as described below: WELL # DESCRIPTION 0% D-11 B-05 (41-32-11-24) ~.~ SPNR/TEMP FINAL BL 1 SPNR/TEMP RF SEPIA ~LLAR/TUB FINAL BL 1 COLLAR/TUB RF SEPIA ~[O~ Z-12 (21-30-11-12) E-13 (01-11-13) ~'~%~ B-21 (12-31-11-14) B-29 (32-31-11-14) H-22 (21-11-13) /1 PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA ,.-~PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA JPFC/PERF FINAL BL 1 PFC/PERF RF SEPIA /1 PLS S~C FINAL BL 1 PLS ST~TTC RF SEPIA /'f-PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA /~1 POL/CCL FINAL BL POL/CCL RF SEPIA Run # 1 Run # 1 ECC No. 5617.08 Run # 1 5862.03 Run # 1 Run # 1 4031.04 Run # 1 Run # 1 5955.03 Run # 1 Run # 1 5718.05 Run # 1 Run # 1 5818.06 Run # 1 Run # 1 6016.04 Run # 1 Run # 1 3060.03 Run # 1 Please sign and return to: Atlas Wireline Services S5u6.0lt0eB2~reet Anchorage, AK 99518 / ~~~D' Pauls°nDate Received by: ALASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Date: 25 July 1994 Transmittal of Data Sent by: ANCHORAGE EXPRS Dear Sir/Madam, Enclosed, please find the data as described below: WELL ~ DESCRIPTION ~l. / W-30 (11-21-11-12) ~ c/ ~ ~0~Z-12 (21-30-11-12) · ~W-30 (11-21-11-12) .-1 PDK/GR LDWG TAPE+LST ..-1 PDK/GR LDWG TAPE+LST jPDK BORAX LDWG TAPE 1 PDK BORAX TAPE LISTR ~'1 CN/GR LDWG TAPE+LIST ~.~ PDK/GR LDWG TAPE+LST ECC No. Run ~ 1 6228.00 Run Run # 1 Run # 1 4031.03 ! 6228.01 Run # 1 6012.01 Run ~ 1 5985.09 Please sign and return to: Atlas Wireline Services 5600 B Street Suite 201 Anchorage, AK 99518 Attn. Rodney D.. Paulson Received by:. / ~,~~ I E,CEIVED Date: JUL 2 G 1994 Please sign .and return to: Petrotechnical Data Center BP Exploration (Alaska) 900 East Benson Boulevard Anchorage, Alaska 99908 Received by Date 900 Eaa~ Be.l:l, SOZl ~>U.l. evaz'~l. Anchora e Alaakm 9F ,8 Received Date ALASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Date: 7 July 1~94 RE: Transmittal of Data Sent by: ATLAS WIRELINE Dear Sir/Madam, Enclosed, please find the data as described below: WELL # DESCRIPTION /-t~PL LEAKDET FINAL BL 1PL LEAKDET FINAL RF ECC No. Run # 1 5607.05 Run # I /~ PLS FINAL BL Run # 1 3457.04 ! PLS FINAL RF Run # 1 %% ~P~L GASENTRY FINAL BL 1 PL GASENTRY FINAL RF jPDK/GR FINAL BL 1PDK/GR FINAL RF ~/11PDK/BORAX FINAL BL PDK/BORAX FINAL RF ~-"%0'7-/ Z-12 (2'1-30-11-12) ~ PDK/GR FINAL BL 1 PDK/GR FINAL RF ,,~ PDK/GR FINAL BL 1 PDK/GR FINAL RF /~PDK/GR FINAL BL 1 PDK/GR FINAL RF Date: Please sign and return to: Atlas Wireline Services 5600 B Street Suite 201 Anchorage, AK 99518 Attn. Rodney D. Paulson Received by: Run # 1 6225.00 Run # 1 Run # 1 Run # 1 Run # 1 Run # 1 6228.00 Run # 1 6026.02 Run # 1 Run # 1 3752.01 Run # 1 Run # 1 4031.03 Run # 1 STATE Of ALASKA ALA~OIL AND GAS CONSERVATION COMMISSIC~-''' REPORT br= SUNDRY WELL OPE, ATIONS 1. Operations performed: Operation shutdown Stimulate Plugging Pull tubing Alter casing Repair well Perforate Other 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. 0. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 981'SNL, 1786' EWL, SEC. 19, T11N, R12E At top of productive interval 820' SNL, 3653' WEL, SEC. 30, T11N, R12E At effective depth 1136' SNL, 3723' WEL, SEC. 30, T11N, R12E At total depth 1234' SNL, 3739' WEL, SEC. 30, T11N, R12E 5. Type of Well: Development X Exploratory Stratigraphic Service 6. Datum elevation (DF or KB) KBE=91.74 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number Z-12(21-30-11-12) 9. Permit number/approval number 89-102 / 10. APl number 50- 029-21977 11. Field/Pool Prudhoe Oil Pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Length Structural -- Conductor 117 Surface 2622 Intermediate 10731 Production -- Liner 1102 Perforation depth: measured 11580 feet Plugs (measured) 9199 feet 11458 feet Junk (measured) 9127 feet Size Cemented 20 13 3/8 3716 c.f. Permafrost 9 5/8 2365 c.f. C/ass G 5 1/2 458 c.f. C/ass G 11250' - 11280', 11290' - 11300', 11314' - 11338' Measured depth 153 2658 10767 10478-11580 True vertical depth BKB 153 2658 8686 8496-9199 true vertical subsea 8908'- 8927~ 8933'-8939~ 8948'-8962' Tubing (size, grade, and measured depth) 3 1/2' 9.2# L-80 @ 10480' Packers and SSSV (type and measured depth) Packer @ 10403' & SSSV@2107' 13. Stimulation or cement squeeze summary See Attachment Intervals treated (measured) Treatment description including volumes used and final pressure Al~sk,3 0il & Gas Cons. Commission Anchoraye 14. Prior to well operation Subsequent to operation Representative Daily Average Production or Injection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure 990/~7,487 1356 0 2220 7366 1071 0 Tubing Pressure 254 310 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 9ertify that the foregoing is true and correct to the best of my knowledge. SignedC,~ ~ 0"A~.~.- '~c~ Title Senior TechnicalAssistantl Form 10-40z~ Rev 06/15/88 SUBMIT IN DU'PLICATE 08/06/93 WELL Z-12(21-30-11-12) Addperf Operation The following additional intervals were perforated using 2 1/2" guns, 4 SPF, 0° orientation and 0° phasing. 11190'-l1206'MD fjh 7/11/94 RECEIVED JUL 1 5 1994 Aia.$ka Oil & Gas Cons. 6ommissioP Anchoraue ALASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Date: 15 May 1994 Transmittal of Data Sent by: U.S. MAiL Dear Sir/Madam, Enclosed, please find the data as described below: WELL ~ DESCRIPTION E-02 (34-06-11-14) HL z-21 C-07 (31-24-11-13) q -25 -32 (42-20-11-13) /~ PLS/SPNR FINAL BL 1 PLS/SPNR RF SEPIA ~ PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA /~ DTEMP/GR FINAL BL 1 DTEMP/GR RF SEPIA ,,~ PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA ~ PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA ~-~ ~H-26 (23-16-11-13) ~-- IOL Z-12 (21-30-11-12) ,-! PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA '~ PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA /1 PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA /1PFC/PERF FINAL BL 1PFC/PERF RF SEPIA Cont/ ECC No. Run # 1 5938.01 Run # 1 Run # 1 5780.04 Run # 1 Run # 1 4166.03 Run # 1 Run ~ 1 3838.02 Run # 1 Run # 1 6170.03 Run ~ 1 Run # 1 4892.01 Run ~ 1 Run # 1 4031.02 Run # 1 Run # 1 6083.07 Run Run ~ 1 2187.04 Run # 1 ,~nC~ uS. .,. ,.,orage C°,~r~i$$/o/7 ALASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Date: 10 November 1993 RE: Transmittal of Data ECC ~: 4031.01 Data: PDK-PORO Dear Sir/Madam, Reference .~ BP Z-12 (21-30-11-12) PRUDHOE BAY NORTH SLOPE, AK Enclosed, please find the data as described below: Tapes/Diskettes: 1 Sent by ANCHORAGE XPRES C~- PDK LDWG TAPE+LIST Run # 1 Please sign and return to: Atlas Wireline services Petrophysical Services 5600 B Street Suite 201 Anchorage, AK 99518 Attn. Rodney D. Paulson Received by: Date: P~SE SIGN ONE COPY AND RETU' .... TO- ATLAS WIRELINE SERVICES Pouch 340013 Prudhoe Bay, AK 99734 This is to acknowledge receipt of the following prints and negatives. COMPANY: STATE OF ALASKA OIL & GAS CONSERVATION COMM. ATTENTION: LARRY GRANT FIELD: PRUDHOE BAY WELL - LOG DESCRIPTION PRINTS NEGS. SEPIA A-18 A PFC~PERF)G~cC3- 5" ~90 _1 ~~ 0 1 E-03 PAS ~,, ~ ~__~ _~1 17M~85 0 1 G-18 PLS ~,, 1 0 1 P-09 PAS [LEAK DET~ ~, %%0~ ~ %1~O 0 1 Q-07. CN/GR 5" I1~- ~%%5 0 1 . R-24 PFC~ERF)GR/~u 5,, ~ ~ qq%6 ° R-30 CN/GR 5~, %%000 ~ %%~q~ 0 1 W-07 PDK-100 GR{~U 5,, ~~! ~q~q ° z-12 PDK-100 GR 5" ;~?~ ~ ~[~5% 0 1 Y-36 BHC/AC GR 1~" ~o~--1 ~%o~5 0 1 DIFL/GR 2~~ %%0~ %~%~ 0 1 WATER SA~TION ~" 1 !1~- 1~ 0 ~ ~,.,..1 "' - IVED ~0/~/93 (~) FORMTOOL~RTNCARD DATE ¢'t-1 ,$1995 BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 DATE: 08/10/93 T# 84863 BPX/PBU ~LOGS Enclosed is your copy of the materials listed below. If you have any questions, please contact BP Well Records at (907) 564-4004. A-09~1'O? PRODUCTION LOG 08/02/93 ~1 B-0270'~O PRODUCTION LOG 08/01/93 #1 B-06~-7~ PRODUCTION LOG 08/06/93 #1 B-071~'Z PRODUCTION LOG 08/02/93 #1 B-20%~[~ PRODUCTION LOG 08/06/93 #1 G-031~'Sq DTL 08/04/93 #1 M-21A~'75 PRODUCTION LOG 08/01/93 ~1 Z-12 ~-'~ PFC~I~ 08/06/93 ~1 z-14~-~ PFC~G~I~ 08/06/93 #1 Z-32~9. Z~ CCL (~ 08/07/93 #t 9250.00- 9750.00 ATLAS 5 " 10250.00-10562.00 ATLAS 5 " 8950.00- 9200.00 ATLAS 5 " 11500.00-11716.00 ATLAS 5 " 9500.00- 9830.00 ATLAS 5 " 8800.00- 9200.00 ATLAS 5 " 8800.00- 9300.00 ATLAS 5 " 10300.00-11330.00 ATLAS 5 " 9600.00-10192.00 ATLAS 5 " 9800.00-10110.00 ATLAS 5 " Information Control Well Records t ECEIVED AUG 1 7 1993 Alaska Oil & Gas Cons. C°rn~nission 'Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: HOUSTON ARCO CHEVRON EXXON MOBIL PHILLIPS ARCHIVES DATE: 11/01/89 T#: 80543 BP OPEN HOLE FINAL LOGS Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. HOU/UNIT/STATE: Z-12 BHCA/GR 10/29/89 $1 10774-11557 Atlas 2"/5" Z-12 CNL/GR 10/29/89 ~1 7500-11528 Atlas 2"/5" Z-12 DIFL/GR 10/29/89 #1 10744-11586 Atlas 2"/5" Z-12 FMT 10/29/89 #1 11049-11446 Atlas 2"/5" HOU/GEOS/ARCO/EXXON/ARCHIVES ONLY .... Z-12 SS TVD 10/29/89 #1 7500-11528 Atlas 2"/5" STATE ONLY: Magnetic Single Shot Directional Survey Gyroscopic Directional Survey Information Control Well Records LR 2-1 J. Dietz/S. McCurry DIRECTIONAL SURVEYS Date: Job# Date: jobs -~ JAN2 4 Alaska 01I '[ Gas Cons. c0mmi~Q¢ Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 January 22, 1990 Alaska Oil & Gas Conservation Commission 3001 Porcupine Dr. Anchorage, Alaska 99501 Attn' Mr. C. V. Chatterton Well Z-12 (21-30-11-12) PBU Enclosed, in duplicate, is form 10-407, our Report of Well Completion for the above named well. This information reflects the current condition and status of the well. Enclosed are two copies each of daily drilling reports, directional and gyroscopic surveys, and open hole logs. Yours very truly, G. W. Kirton PBU Lead Engineer GWK/KTH Enclosures (4) J. Martin (MB 9-4) Well Records w/10 Well File I · ~ STATE OF ALASKA ' ALASKA OIL AND GAS CONSERVATION coMMIsSION 0 ~ ~ G ~ ~J ~ [ WELL COMPLETION OR R£COMPL£TION REPORT AND LOll 1. Status of Well Classification of Service Well OIL [] GAS [] SUSPENDED [] ABAN[:IONED [] SERVICE [] 2. Name of Operator ?. Permit Number BP Exploration i89-102 3. Address 8. APl Number P. 0. Box 196612, Anchorage, Alaska 99519-6612 so- 029-21977 4. Location of well at surface 9. Unit or Lease Name 981' SNL, 1786' EWL, SEC. 19, T11N, R12E Prudhoe Bay Unit At Top Producing Interval '~"---'- 10. Well Number LO, C~TION~ z- 12 (21-30-11-12) 820' SNL, 3~3' WEL, SEC. 30, 7'11N, RI£E VER1FIED ~r~- ~'~.~'~.k.~ r, )~1prudhoe 1. Field and Bay Pool At Total Depth Field/Prudhoe Bay Pool 1234' SNL, 3739' WEL, SEC. 30, T11N, R12E I. H,~ 5. Elevation in feet (indicate KB, DF, etc.) ~6. Lease Designation and Serial NO~-~'- ..... KBE = 91.74' I ADL 47453 12. 'Date Spudded 13. Date T.D. Reached 14. Date Comp., Suep. or Aband. ~15. Water Depth, if ollshore 116. No. of Completions 10-11-89 10-28-89 11-06-89I N/A feet USE I ONE 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD', 19. Directional Survey 120. Depth where SSSV set 121. Thickness of Permafrost 11580'MD/9199'TVD 11458'MD/9127'TVD '~ YES [] NO []I 2107feet MD'1 1892' 22. Type Electric or Other Logs Run DIL/Sonic/Neutron/GR/SD, RFT 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER Fr. GRADE TOP Bo'FrOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20" Cond. Surface 117' 13-3/8" 681t L-80 Surface 2658' 17-1/2" 3716 cu ft Permafrost 9-5/8'~ 47# L-80 Surface 10767' 12-1/4" 2365 cu ft Class G 5-1/2' 17# TC4S 10478' 11580' 8-1/2" 458 cu ft 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) Baker 3-3/8"@ 4 spt 3-1/2" 9.2#L-80 10480' 10403' MD TVDss 11250'- 11280' 8908'-8927' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 11290'-11300' 8933'-8939' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 11314'- 11338' 8948'-8962' 13-3/8" X 9-5/8" Freeze Protect annulus with 150 bbls dry crude. 27. PRODUCTION TEST Date First Production IMethod of Operation (Flowing, gas lift, etc.) Novernber 3, 1989 I FIowing Date of Test Hours Tested PRODUCTION ~ OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE IGAS-OIL RATIO TEST PERIOD II~ Flow Tubing Casing Pressure CALCULATED..~ OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (corr) Press. 24-HOUR RATE 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips, and presence of oil, gas or water. Submit core chips. ,JAN 2 4 1 90 ;~laska Oil & Gas Cons. C0mmiS$1O~l Form 10-407 Submit in duplicate Rev. 7-1-80 CONTINUED ON REVERSE SIDE 29. 30. GEOLOGIC MARKERS ~,,,,~ ~/~VlATION TESTS '~ , NAME Include interval tested, pressure data, all fluids recovered and gravity, ME.~S. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. SAG 10774' 8692' SHUBLIK A 10815' 8719' ZONE 4 11044' 8778' 3i. LIST OF ^TrACHMENTS · ,. 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed .f~/~,~-~ ,~Title PBU Lead Engineer Date //-~/~' INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24 · If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28: If no cores taken, indiCate "none". Form 10-407 BP EXPLOR,~'ION Daily Drilling Report -- Prudhoe Bay Unit October 12, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 APl: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 400' Day: 1 24- Hour Ftg: 283' Current Operation: Drilling. RU and test top drive. Spud well @ 2200 hrs. 10-11-89. Drilled 17-I/2" hole to 400'. Wells Shut-In for Drill-By: Mud Type: SPUD WT: 9.5 SURVEY MD ANGLE VIS: 225 PV: 24 YP: 42 FL: 13 Solids: 6 Temp: DIRE~I'ION TVD SECTION COORDINATES 55°F DLS, BP EXPLORNION Daily Drilling Report -- Prudhoe Bay Unit October 13, 1989 at 0600 hrs Rig: Audi #2 Welh Z-I2 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 2290' Day: 2 24- Hour Ftg: 1890' Current Operation: Drilling. Drilled 17-1/2" hole to 2290'. Wells Shut-In for Drill-By: Mud Type: SPUD WT: 9.8 SURVEy MD ANGLE VIS: 160 'PV: 30 YP: 42 FL: 12 DIRE~ON TVD SECTION Solids: 8 Temp: - CF COORDINATES DL$. BP EXPLORATION Daily Drilling Report -- Prudhoe Bay Unit October 16, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 4289' Day: 5 72- Hour Ftg: 1999' Current Operation: Trip for BHA and bit mn. Ran and cemented 13-3/8" casing. Test casing to 3000 psi. Drilled 12-1/4" hole to 4289'. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 9.6 SURVEY MD ANGLE VIS: 37 PV: 10 YP: 5 FL: 13.6 DIRECTION TVD SECTION Solids: 9 Temp: 76 °F COORDINATES DL~S BP EXPLOR~;I'ION Daily Drilling Report-- Prudhoe Bay Unit October 17, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 5945' Day: 5 24- Hour Ftg: 1656' Current Operation: Drilling 12-1/4" hole. Drilled 12-1/4" hole to 5945'. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 9.8 SURVEY MD ANGLE VIS: 40 PV: 13 YP: 7 FL: 5.6 DH~EC'~QN ,TVD. SECTION Solids: 9.5 Temp: 72 °F CQQRDINATE$ DLS BP EXPLORK]ION Daily Drilling Report -- Prudhoe Bay Unit October 18, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 6742' Day:. 7 24- Hour Ftg: 797' Current Operation: Drilling 12-1/4" hole. Drilled 12-1/4" hole to 6742'. Wells Shut-In for Dr/ii-By: Mud Type: NON DISP WT: 10 SURVEY MD ANGLE VIS: 40 PV: 15 DIRE~WIQN ~ YP: 9 FL: 4.0 SECTION Solids: 9 Temp: 80 °F COORDINATES DLS BP EXIR..OR~N Daily Drilling Report-- Prudhoe Bay Unit October 19, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 6555' Day: 8 24- Hour Ftg:· 834' Current Operation: Drilling 12-1/4" hole. Drilled 12-1/4" hole to 7576'. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 10.4 VIS' 45 PV: 19 YP: 12 FL: 3.8 SURVEY MD ANGLE DIRE~"WIQN TVD SEQ'WION Solids: 11 Temp: 80 °F COORDINATES ,D,,LS BP EXiq. OR/glON Daily Drilling Report-- Prudhoe Bay Unit October 20, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 8021' Day: 9 24- HourFtg: '445' Current Operation: Run in hole with 12-1/4" bit. Drilled 12-1/4" hole to 8021'. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 10.6 VIS: 44 PV: 19 YP: 6 FL: 3.0 SURVEY MD ANGLE DIRECTION TVD SE~7'IQN Solids: 11.5 Temp: C00RDrNATES 89°F DLS BP EXFI. OR.~'iON Rig: Audi #2 Well: Z-12 (21-30-11-12) Daily Drilling Report -- Prudhoe Bay Unit October 23, 1989 at 0600 hrs AFE # 125055 AFE Amount: API: 50-029-21977 Current Amount: 0600 Depth.: 9407' Day: 12 72-HourFtg:. 1386' Current Operation: Run in hole with bit. Drilled 12-1/4" hole to 9407'. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 10.6 $1JRVEY MD ANGLE VIS' 39 PV: 14 D1REC~ON TVD YP: 7 FL: 4.0 SECITON Solids: 12 Temp: 98 °F COORDINATES DLS BP EX..ORaN Rig: Audi #2 Well: Z- 12 (21-30-11-12) Daily Drilling Report -- Prudhoe Bay Unit October 24, 1989 at 0600 hrs AFE # 125055 APl: 50-029-21977 AFE Amount: Current Amount: Current Operation: 0600 Depth: 10113' Day: 13 24- Hour Ftg:, 706' Puli out of hole with bit. Drilled 12-1/4" hole to 10113'. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 10,6 VIS: 43 PV: 18 YP: 12 FL: 4.2 SURVEY MD ANGLE DIRECTION TVD SECTION Solids: 12.5 Temp: 82 CF ~,OORDINATES DL~S BP EXlX. ORRI~N Daily Drilling Report -- Prudhoe Bay Unit October 25, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 A.PI: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 10460' Day: 14 24- Hour Ftg:' 347' Current Operation: Drilling. Drilled 12-1/4" hole to 10460' Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 10.6 VIS: 43 PV: 17 YP: 10 FL: 4.0 SURVEY MD ANGLE DIRE~ON TVD SECTION Solids: 13 Temp: 101 °F COORDINATES DLS !~ ;Xiq. OR~N Daily Drilling Report-- Prudhoe Bay Unit October 26, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 10775' Day: 15 24- Hour Ftg:. 315' Current Operation: Running 9-5/8" casing. Drilled 12-1/4" to TD of 10775'. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 10.6 VIS: 50 PV:22 YP: 16 FL: 4.4 SURVEY MD ANGLE D1RE~FIQN TVD SECTION Solids: 13.5 Temp: COORDINATES DLS, BP EXPI. OR~N Daily Drilling Report .- Prudhoe Bay Unit October 27, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 APl: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 10775' Day: 16 24- HourFtg: .0 Current Operation: Circulate to test casing. Ran and cemented 9-5/8" casing. Did not bump plug. Tested to 5000 psi. Test BOPs. R/5-I with 8-1/2" BHA, tag cement at 10477'. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 10.6 SURVEY ~ ANGLE VIS: 53 PV:21 YP: 15 FL: 4.0 DIRECTION TVD SE~'TION Solids: 13.5 Temp: COORDINATES 94'F DLS. BP EXPLOR~N Daily Drilling Report -- Prudhoe Bay Unit October 30, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 11580' Day: 19 72- Hour Ftg:. 805' Current Operation: Running 5-1/2" liner. Tested 9-5/8" casing, drilled out and drilled 8-1/2" hole to 11580'. Ran open hole logs. Wiper trip. Rigged up and ran 5-1/2" liner. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 9.6 SURVEY ~ ANGLE VIS: 43 PV: 9 YP: 8 FL: 7 SoLids: 9 Temp: DIRECTION .TVD SECTION COORDINATES 85°F DL$ BP EXPLOR~N Rig: Audi #2 Well: Z-12 (21-30-11-12) Daily Drilling Report -- Prudhoe Bay Unit October 31, 1989 at 0600 hrs AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth:. 11580' Day: 20 24- HourFtg:. 0 Current Operation: Drilling cement. Ran and cemented 5-1/2" liner. RIH to clean out to top of liner. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 9.6 SURVEY MI)i ANGLE VIS:41 PV:9 DIREr'ION TVD YP: 8 FL: 7.6 SECTION Solids: 9 Temp: 86 °F COORDINATES DLS · BP EXPLOR.~'ION Rig: Audi #2 Well: Z-12 (21-30-11-12) Daily Drilling Report -- Prudhoe Bay Unit November 1, 1989 at 0600 hrs AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: Current Operation: 0600 Depth: 11580' Day: 21 24- Hour Ftg:, 0 Cleaning out liner. Drilled out cement and tested liner lap to 3000~. Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 9.5 $1.J-R~Y MD ANOLE VIS:41 PV:6 DIRECTION TVD YP: 10 FL: 10.4 SECTION Solids: 8.5 Temp: 90 ~F COORDINATES DL$ BP EXFL,ORN'ION Daily Drilling Report-- Prudhoe Bay Unit November 2, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600Depth: 11580' Day: 22 24- Hour Ftg: , 0 Current Operation: Run in hole with 5-1/2" casing scraper. Drill out the cement to landing collar@ 11458'. Test the liner to 3000 psi. - OK. with 5-1/2" casing scraper. Run Wells Shut-In for Drill-By: Mud Type: NON DISP WT: 9.5 SURVEY MD ANGLE VIS: 38 PV: 9 YP: 5 FL: 11.5 Solids: 8 Temp: 78 °F DIRECTION TVD SECTION COORDINATES DL$ Daily Drilling Report-- Prudhoe Bay Unit November 3, 1989 at 0600 hrs Rig: Audi #2 Well: Z-12 (21-30-11-12) AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: 0600 Depth: 11458' PBTD Day: 23 24- Hour Ftg:' 0 Current Operation: Logging. Cleaned out liner with scraper. Displaced well to 9.3 ppg brine. Tested liner to 3000~. POH and RU Schlumberger. Wells Shut-In for Drill-By: Mud Type: BRINE WT: 9.35 SURVEY MD ANGLE VIS: PV: YP: FL: DIRECTION TVD SE~IffON Solids: Temp: 66 CF COORDINATES DL$ BP EXPI.0R~N Rig: Audi #2 Well: Z-12 (21-30-11-12) Daily 'Drilling Report-- Prudhoe Bay Unit November 6, 1989 at 0600 hrs AFE # 125055 API: 50-029-21977 AFE Amount: Current Amount: Current Operation: 0600 Depth: 11458' Day: 26 72- Hour Ftg: 0' Rig released at 0600 hrs. 11-06-89. Ran CBT, CET, CBL and gyro. Perforated well from 11250' to 11280'; 11290' to 11300'; 11314' to 11338' with 3-3/8" guns at 4 SPF. Run 3-1/2" robing. Test tree at 5000~. Set packer. Secure tree. Rig re!eased. Wells Shut-In for Drill-By: Mud Type: BRINE WT: 9.1 SURVEY ..MD ANGLE VIS: PV: YP: FL: DIRECTION TVD ~.EGTION Solids: Temp: 60 °F COORDhNATES DLS ,r TELE£O1 Teleco Oilfield Se, ~,s of Alaska inc. 6116 Nielson Way Anchorage, AK 99502 {907) 562-2646 October 30, 1989 JOB #720 BP EXPLORATION (ALASKA) INC. WELL: Z-12 PRUDHOE BAY-EILEEN WEST END RIG: AUD #2 Attached please find a copy of the computer calculated MWD directional surveys for the above mentioned well. Teleco .appreciates this opportunity to provide service to BP Exploration (Alaska) Inc. Teleco is committed to providing the highest quality MWD Service and we would welcome any comments or questions concerning these surveys or any of our other services. Sincerely, Jonathan G Field Operations Supervisor JGM/el Enclosures Date A ~,~,,,M~T COMPANY TELECO OILFIELD SERVICES SURVEY CALCULATIONS Date 10-27-89 Company: BP EXPLORATION (ALASKA) Well: Z-12 Location: PRUDHOE BAY-EILEEN WEST END Rig: AUDI #2 TELECO Job # Grid Correction: Magnetic Declination: Total grid correction: Proposed Direction: 720TAK 0.0° 30.0° 30.0° 185.9° MINIMUM CURVATURE CALCULATION Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' TIE-IN TO MAGNETIC SINGLE SHOT 2674 0 0.8 165.0 2674.00 13.21 14.00S 7.00E 15.65 S 26.57E 0.00 TELECO MWD SURVEYS 3097 423 0.6 175.5 3096.97 17.97 18.88S 7.89E 20.46 S 22.68E 0.05 3283 186 2.7 192.1 3282.88 23.28 24.14S 7.05E 25.15 S 16.28E 1.15 3368 85 5.3 188.2 3367.67 29.20 29.98S 6.07E 30.59 S 11.44E 3.07 3461 93 8.1 182.2 3460.03 40.03 40.78S 5.20E 41.11 S 7.27E 3.10 PAGE 1 Company: BP EXPLORATION (ALASKA), Well: Z-12, 'Location: PRUDHOE BAY-EILEEN WEST END, Riq: AUDI ~2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 3534 73 10.5 181.2 3532.06 51.79 52.57S 4.87E 52.80 S 5.29E 3.30 3622 88 12.2 180.8 3618.34 69.05 69.89S 4.57E 70.04 S 3.74E 1.93 3717 95 13.9 182.9 3710.88 90.44 91.32S 3.85E 91.40 S 2.42E 1.86 3811 94 15.7 183.6 3801.76 114.43 115.29S 2.48E 115.32 S 1.23E 1.92 3904 93 17 . 3 185.7 3890.93 140.83 141.61S 0.32E 141.61 S 0.13E 1.84 3998 94 19.4 188.2 3980.14 170.41 170.98S 3.30W 171.01 S 1.10W 2.39 4111 113 21.4 180.8 4086.07 209.71 210.18S 6.26W 210.27 S 1.71W 2.89 4206 95 23.7 177.7 4173.80 245.87 246.59S 5.74W 246.66 S 1.33W 2.72 4282 76 26.4 177.3 4242.65 277.70 278.74S 4.33W 278.77 S 0.89W 3.56 4376 94 ~ 28.5 178.0 4326.06 320.59 322.03S 2.57W 322.04 S 0.46W 2.26 4469 93 30.9 176.6 4406.84 366.14 368.05S 0.38W 368.05 S 0.06W 2.69 4564 95 33.2 178.7 4487.36 416.02 418.41S 1.66E 418.41 S 0.23E 2.69 4656 92 35.3 178.7 4563.40 467.39 470.17S 2.83E 470.18 S 0.35E 2.28 4751 95 37.8 178.0 4639.71 523.47 526.72S 4.47E 526.74 S 0.49E 2.67 PAGE 2 . ComDany: BP EXPLORATION (ALASKA), Well: Z-12, Location: PRUDHOE BAY-EILEEN WEST END, Riq: AUDI #2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 4845 94 40.1 178.0 4712.81 ,582.00 585.77S 6.52E 585.,81 S 0.64E 2.45 4939 94 42.5 178.0 4783.42 643.44 647.77S 8.67E 647.83 S 0.77E 2.55 5033 94 44 . 6 178.4 4851.55 707 . 62 712 . 50S 10.70E 712 . 58 S 0.86E 2.25 5126 93 46.8 179.1 4916.50 773 . 66 779.04S 12 . 14E 779.13 S 0.89E 2 . 43 5220 94 49 . 1 179.4 4979 . 45 842 . 99 848 . 83S 13 . 05E 848 . 93 S 0.88E 2 . 46 5312 92 49.8 179.8 5039.26 912.47 918.73S 13.54E 918.83 S 0.84E 0.83 5405 93 49.5 178.7 5099.48 982.87 989.60S 14.47E 989.70 S 0.84E 0.96 5498 93 49.2 178.4 5160.06 1052.85 1060.13S 16.25E 1060.26 S 0.88E 0.40 5593 95 49.0 179.4 5222.25 1124.12 1131.93S 17.63E 1132.07 S 0.89E 0.82 5684 91 48.9 178.7 5282.01 1192.26 1200.55S 18.77E 1200.70 S 0.90E 0.59 5777 93 48.3 178.7 5343.51 1261.47 1270.29S 20.35E 1270.46 S 0.92E 0.65 5870 93 48.3 178.0 5405.38 1330.31 1339.70S 22.34E 1339.89 S 0.96E 0.55 5962 92 47.9 179.1 5466.82 1398.22 1408.15S 24.07E 1408.36 S 0.98E 0.98 PAGE 3 Company: BP EXPLORATION (ALASKA), Well: Z-12, Location: PRUDHOE BAY-EILEEN WEST END, Riq: AUDI ~2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 6054 92 47.7 179.8 5528.62 1465.94 1476.30S 24.73E 1476.51 S 0.96E 0.60 6151 97 47.6 179.8 5593.96 1537.22 1547.99S 24.98E 1548.19 S 0.92E 0.11 6241 90 47.7 179.4 5654.59 1603.33 1614.50S 25.44E 1614.70 S 0.90E 0.35 6340 99 47.8 179.8 5721.16 1676.17 1687.78S 25.95E 1687.98 S 0.88E 0.32 6432 92 47.9 179.8 5782.90 1743.99 1755.99S 26.19E 1756.18 S 0.85E 0.11 6524 92 47.8 180.5 5844.64 1811.86 1824.20S 26.01E 1824.38 S 0.82E 0.58 6620 96 48.1 180.8 5908.93 1882.85 1895.48S 25.20E 1895.64 S 0.76E 0.39 6714 94 48.1 180.6 5971.71 1952.52 1965.44S 24.35E 1965.59 S 0.71E 0.16 6808 94 47.9 181.5 6034.61 2022.13 2035.28S 23.07E 2035.41 S 0.65E 0.74 6903 95 47.5 181.2 6098.55 2092.17 2105.52S 21.41E 2105.63 S 0.58E 0.48 6997 94 47.3 182.2 6162.17 2161.18 2174.69S 19.36E 2174.77 S 0.51E 0.81' 7091 94 47.6 182.9 6225.74 2230.30 2243.86S 16.28E 2243.92 S 0.42E 0.63 7184 93 47.5 181.5 6288.51 2298.78 2312.43S 13.65E 2312.47 S 0.'34E 1.12 PAGE 4 Company: BP EXPLORATION (ALASKA), Well: Z-12, Location: PRUDHOE BAY-EILEEN WEST END, Riq: AUDI #2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 7279 95 47.2 181.9 6352.87 2368.47 2382.27S 11.57E 2382.30 S 0.28E 0.44 7374 95 46.9 183.3 6417.61 2437.88 2451.73S 8.42E 2451.75 S 0.20E 1.12 7469 95 46.4 183.5 6482.82 2506.90 2520.69S 4.32E 2520.70 S 0.10E 0.55 7560 91 46.3 183.9 6545.63 2572.69 2586.40S 0.08E 2586.40 S 0.00E 0.34 7654 94 46.2 185.0 6610.63 2640.57 2654.10S 5.20W 2654.10 S 0.11W 0.86 7748 94 46.7 185.5 6675.40 2708.69 2721.94S 11.44W 2721.96 S 0.24W 0.65 7843 95 47.1 185.1 6740.31 2778.06 2791.01S 17.85W 2791.06 S 0.37W 0.52 7937 94 47.9 186.2 6803.82 2847.36 2859.97S 24.67W 2860.08 S 0.49W 1.21 8031 94 48.6 187.7 6866.41 2917.47 2929.58S 33.16W 2929.77 S 0.65W 1.40 8124 93 48.5 186.1 6927.98 2987.16 2998.78S 41.54W 2999.06 S 0.79W 1.29 8218 94 48.5 187.6 6990.26 3057.55 3068.67S 49.93W 3069.08 S 0.93W 1.20' 8313 95 48.5 188.4 7053.21 3128.65 3139.13S 59.84W 3139.70 S 1.09W 0.63 8407 94 48.6 189.6 7115.44 3199.00 3208.72S 70.86W 3209.50 S 1.27W 0.96 PAGE 5 Company: BP EXPLORATION (ALASKA), Well: Z-12, Location: PRUDHOE BAY-EILEEN ..WEST END, Riq: AUDI ~2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 8500 93 48.6 190.6 7176.94 3268.57 3277.39S 83.09W 3278.45 S 1.45W 0.81 8595 95 48.6 192.8 7239.77 3339.46 3347.17S 97.54W 3348.59 S 1.67W 1.74 8692 97 48.9 192.0 7303.73 3411.92 3418.39S 113.21W 3420.26 S 1.90W 0.69 8785 93 48.5 192.8 7365.11 3481.34 3486.63S 128.21W 3488.98 S 2.11W 0.77 8878 93 48.8 193.6 7426.55 3550.58 3554.59S 144.16W 3557.52 S 2.32W 0.72 8972 94 ~48.5 193.8 7488.65 3620.50 3623.15S 160.87W 3626.72 S 2.54W 0.36 9067 95 48.3 194.9 7551.73 3690.76 3691.97S 178.47W 3696.28 S 2.77W 0.89 9161 94 48.1 196.4 7614.38 3759.82 3759.45S 197.37W 3764.62 S 3.01W 1.21 9275 114 47.7 194.2 7690.82 3843.26 3841.02S 219.70W 3847.30 S 3.27W 1.47 9338 63 47.2 190.7 7733.43 3889.36 3886.33S 229.70W 3893.11 S 3.38W 4.17 9443 105 47.6 184.6 7804.53 3966.54 3962.86S 239.97W 3970.12 S 3.47W 4.29 9536 93 48.1 184.7 7866.94 4035.47 4031.59S 245.56W 4039.06 S 3.49W 0.54 9631 95 48.3 184.7 7930.26 4106.28 4102.17S 251.36w 4109.86 S 3.51W 0.21 PAGE 6 Company: BP. EXPLORATION (ALASKA), Well: Z-12, Location: PRUDHOE BAY-EILEEN WEST END, Riq: AUDI ~2 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg, deg/100' ******************************************************************************************************* 9725 94 48 . 3 185.4 7992 . 80 4176.45 4172 . 08S 257 . 54W 4180.02 S 3 . 53W 0.56 9819 94 48.3 186.4 8055.33 4246.63 4241.89S 264.76W 4250.14 S 3.57W 0.79 9912 93 48.0 187.8 8117.37 4315.90 4310.64S 273.32W 4319.29 S 3.63W 1.16 10007 95 47.8 188.8 8181.06 4386.33 4380.39S 283.49W 4389.55 S 3.70W 0.81 10101 94 47.9 189.4 8244.14 4455.91 4449.20S 294.51W 4458.94 S 3.79W 0.49 10195 94 48.3 190.8 8306.92 4525.68 4518.08S 306.79W 4528.48 S 3.88W 1.19 10290 95 48.6 192.1 8369.93 4596.44 4587.76S 320.90W 4598.97 S 4.00W 1.07 10384 94 49.0 191.0 8431.84 4666.83 4657.05S 335.07W 4669.09 S 4.12W 0.98 10477 93 49.0 192.4 8492.84 4736.66 4725.79S 349.31W 4738.68 S 4.23W 1.13 10571 94 48.8 192.5 8554.63 4807.04 4794.96S 364.58W 4808.80 S 4.35W 0.23 10665 94 48.3 195.0 8616.86 4876.82 4863.39S 381.32W 4878.32 S 4.48W 2.07 10710 45 48.0 196.5 8646.88 4909.85 4895.65S 390.42W 4911.20 S 4.56W 2.55 PAGE 7 2OOO TELECO Oilfield Sepv ces VERTICAL PROJECTION 0 lO00 2000 3000 4000 5000 6000 3O00 4OO0 ZZSooo o6000 >7000 8000 9000 10000 11000 2674 · .75 d.g BP EXPLORATION (ALASKA) Z-12 3097 ' .6 deg PRUDHOE BAY-EILEEN WEST EN[ 3368' 5.3 deg AUDI #2 dOB# 720TAK/O0 3622 ' t2.2 deg \ SCALE: %3S04' J7.3 ~eg 1 inch = 1000 feet .-~42o6 , 23.7 deg 4469 ' 30.9 deg %75t ' 37.8 deg a33 ' 44.6 deg 405 ' 49.5 deg %~77 ' 48.3 deg 151 ' 47.6 deg 524 ' 47.8 deg %03 ' 47.5 deg %279 ' 47.2 deg 654 ' 46.2 deg %031 ' 48.6 deg ~,%~,,407 ' 48.6 deg 85 ' 48.5 deg ,~,161 ' 48.1 deg ,~536 ' 48.~ deg 912 ' 48.0~ Oeg ',, deg VERTICAL SECTION (ft) TELECO 0 i 1 f ~ e 1 d PLAN VIEW senv ces BP EXPLORATZON (ALASKA) Z-J2 PRUDHOE BAY-EZLEEN NEST AUDZ #2 JOB# 720TAK/O0 SCALE: 1 inch = 800 feet 2874 ' - 4000 3200 2400 END 4111 4564 4845 5126 5405 5684 5962 6241 6524 68O8 7091 7374 7654 7937 8218 8500 8785 ' / 9067 9338 ' 9631 ' 9912 '~ 10195 _~ 10477 _~ 10710 't 16o(~ NEST t) 800 800 1600 2400 3200 03 0 4000 4800 5600 6400 7200 SO0 MICROFILMED GREAT LAND DIRECTIONAL DRILLING INC. REPORT OF SUB-SURFACE DIRECTIONAL SURVEY ..................... ................. ~ ~.x~.o~?zo~j ~.~/~ ~- COMPANY WEST EILEEN #Z-12 WELL NAME PRUDHOE BAY LOCATION AL-1089-D40 MWD 11/02/89 DIRECTIONAL A ,,,~.,/,~1/ ................................... NAME TITLE SIGNATURE 0000 FT 10710 FT DEPTH INTERVAL FROM TO 10/10/89 10/25/89 DATE SURVEY TAKEN FROM TO THIS IS A RECORD OF A SUB-SURFACE SURVEY OF YOUR WELL WE HAVE RETAINED A COPY OF YOUR SURVEY REPORT IN OUR FILES FOR YOUR CONVENIENCE; HOWEVER, SHOULD YOU SO DESIRE, ALL COPIES OF THE SURVEY REPORT WILL BE FORWARDED TO YOU ON WRITTEN REQUEST. ALL SURVEYS ARE KEPT IN A LOCKED FILE AND ARE HELD IN STRICTEST CONFIDENCE. GREAT LAND DIRECTIONAL DRILLING, Client .... : BP EXPLORATION Field ..... : PRUDHOE BAY Well ...... : WEST EILEEN #Z-12 Section at: S 5.39 W Mag Dcln..: 30.00 E INC. S MEAS INCLN C DEPTH ANGLE 3 0 0.00 3 460 0.50 3 950 0.25 3 1375 0.00 3 1842 0.75 ,- 3 2322 0.75 3 2674 0.75 3 3097 0.60 3 3283 2.70 3 3368 5.30 3 3461 8.10 3 3534 10.50 3 3622 12.20 3 3717 13.90 3 3811 15.70 VERTICAL-DEPTHS BKB SUB-SEA 0.0 -91.7 460.0 368.3 950.0 858.2 1375.0 1283.2 1842.0 1750.2 2321.9' 2230.2 2673.9 2582.2 3096.9 3005.1 3282.8 3191.0 3367.6 3275.8 3459.9 3368.2 3532.0 3440.2 3618.2 3526.5 3710.8 3619.0 3801.7 3709.9 3 3904 17.30 3 3998 19.40 3 4111 21.90 3 4206 23.70 3 4282 26.40 SECTION DI STNCE 3 4376 28.50 3 4469 30.90 3 4564 33.20 3 4656 35.30 3 4751 37.80 RECORD OF SURVEY DIRECTION BEARING 0.0 N 0.00 E -0.5 N 80.00 E 0.0 S 49.00 E 0.8 S 0.00 W 3.8 S 5.00 W 10.1 S 10.00 E 14.4 S 15.00 E 19.2 S 4.50 E 24.6 S 12.10 W 30.5 S 8.20 W 41.3 S 2.20 W 53.1 S 1.20 W 70.4 S 0.80 W 91.8 S 2.90 W 115.8 S 3.60 W 3890.8 3799.1 142.2 3980.0 3888.3 171.8 4085.8 3994.0 211.6 4173.3 4081.6 248.2 4242.2 4150.4 280.0 11/02/89 Computation...: RADIUS OF. CURVATURE Survey Date...: 10/30/89 RKB Elevation.: ~ 91.74 ft Case ID ....... : WZ12D 4325.6 4233.9 323.0 4406.4 4314.6 368.6 4486.9 4395.2 418.5 4562.9 4471.2 470.0 4639.2 4547.5 526.1 Survey Codes: 3/MWD RELATIVE-COORDINATES FROM-WELL-HEAD 0.0 N 0-.0 E 0.3 N 2.0 E 0.5 S 5.0 E 1.3 $ 5.3 E 4.3 S 5.1 E 10.6 S 5.3 E 15.1 S 6.3 E 20.0 S 7.2 E 25.3 S 6.8 E 31.2 S 5.8 E 42.0 S 4.8 E 53.8 S 4.5 E 71.1 S 4.2 E 92.5 S 3.5 E 116.5 S 2.1 E CLOSURE DL DISTNCE BEARING /100 · · N 90.00 E. 0.00 N 80.00 E. 0.11 S 84.47 E '0.05 S 76.33 E 0.06 S 49.43 E 0.16 0.0 2.0 5.0 5.5 6.7 11.9 16.4 21.3 26.2 31.7 42.2 53.9 71.2 92.6 116.5 26.76 E 22.79 E. 19.76 E 15.09 E 10.52 E S 6.53 E S 4.74 E S 3.34 E S 2.14- E .. S 1.03 E 0.00 O. O0 O,04 :1.13 3.06 3.01 3.29 ~-1.93 1.79 1.92 5.70 W 8.20 W 0.80 W 2.30 E 2.70 E 142.8 S 0.0 W 172,2 S 3.6 W 211.9 S 6.7 W 248.7 S 6.3 W 280.8 S 4.9 W 142 172 212 248 280 .8 .2 .0 .8 .9 S 0.02 W 1.73 S 1.21 W 2.25 · S 1.82 W 2.39 S 1.44 W 1.97 S 0.99 W 3.55 S 2.00 E S 3.40 E S 1.30 E S 1.30 E S 2.00 E · . 324.1 S 3.1 W 370.1 S 0.9 W 420.5 S 1.2 E 472.3 S 2.3 E 528.8 S 4.0 E 324 370 420 472 528 .1 .1 .5 .3 .8 S 0.55 W S 0.14 W S 0.16 E S 0.28 E S 0.43 E 2.24 2.61 2.51 2.28 2.65 WEST EILEEN #Z-12 Page 2 11/02/89 RECORD OF SURVEY MEAS INCLN DEPTIt ANGLE 4845 40.10 4939 42.50 5033 44.60 5126 46.80 5220 49.60 3 5312 '49.80 3 5405 49.50 3 5498 49.20 3 5593 49.00 3 5684 48.90 VERTICAL-DEPTHS SECTION DIRECTION RELATIVE-COORDINATES BKB SUB-SEA DISTNCE BEARING FROM-WELL-HEAD 4712.3 4620.6 584.7 S 2.00 E 587.9 S 6.0 E 4783.0 4691.2 646.2 S 2.00 E 649.9 S 8.2 E 4851.1 4759.3 710.5 S 1.60'E 714.6 S 10.2 E 4916.0 4824.3 776.6 S 0.90 E 781.1 S 11.7 E 4978.7 4886.9 846.2 S 0.60 E 851.2 S 12.6 E 5038.2 4946.4 916.1 S 0.20 E 921.4 S 13.1E 5098.4 5006.7 986.5 S 1.30 E 992.2 S 14.0 E 5159.0 5067.2 1056.6 S 1.60 E 1062.8 S 15.8 E 5221.2 5129.4 1127.9 S 0.60 E 1134.6 S 17.2 E 5280.9 5189.2 1196.1 S 1.30 E 1203.2 S 18.3 E 3 5777 48.30 3 5870 48.30 3 5962 47.90 3 6054 47.70 3 6151 47.60 5342.4 5250.7 1265.4 S 1.30 E 1272.9 S 19.9 E 5404.3 5312.6 1334.3 S 2.00 E 1342.3 S 21.9 E 5465.7 5374.0 1402.3 S 0.90 E 1410.8 S 23.6 E 5527.5 5435.8 1470.1 S 0.20 E 1478.9 S 24.3 E 5592.9 5501.2 1541.4 S 0.20 E 1550.6 S 24.5 E 3 6241 47.70 3 6340 47.80 3 6432 47.90 3 6524 47.80 3 6620 48.10 5653.5 5561.8 1607.6 S 0.60 E 1617.1 S 25.0 E 5720.1 5628.3 1680.5 S 0.20 E 1690.4 S 25.5 E 5781.8 5690.1 1748.4 S 0.20 E 1758.6 S 25.7 E 5843.6 5751.8 1816.3 S 0.50 W 1826.8 S 25.6 E 5907.9 5816.1 1887.4 S 0.80 W 1898.1 S 24.8 E 3 6714 48.10 3 6808 47.90 3 6903 47.50 3 6997 47.30 3 7091 47.60 5970.6 5878.9 1957.1 S 0.60 W 1968.1 S 23.9 E 6033.5 5941.8 2026.8 S 1.50 W 2037.9 S 22.6 E 6097.5 6005.7 2096.9 S 1.20 W 2108.1 S 21.0 E 6161.1 6069.4 2165.9 S 2.20 W 2177.3 S 18.9 E 6224.7 6132.9 2235.1 S 2.90 W 2246.5 S 15.8 E 3 7184 47.50 3 7279 47.20 3 7374 46.90 3 7469 46.40 3 7560 46.30 6287.4 6195.7 2303.6 S 1.50 W 2315.1 S 13.2 E 6351.8 6260.1 2373.3 'S 1.90 W 2384.'9 S 11.1 E 6416.5 6324.8 2442.8 S 3.30 W 2454.4 S 8.0 E 6481.7 6390.0 2511.8 S 3.50 W 2523.3 S 3.9 E 6544.6 6452.8 2577.6 S 3.90 W 2589.0 S 0.4 W CLOSURE DL DISTNCE BEARING /100 587.9 S 0.59 E 2.45 649.9 S 0.72 E 2.55 714.7 S 0.82 E 2.24 781.2 S 0.86 E 2.40 851.3 S 0.85 E 2.98 921.4 S 0.81 E 0.3! 992.3 S 0.81E 0.76 1062.9 S 0.85 E 0.37 1134.7 S 0.87 E 0.64 1203.3 S 0.87 E 0.45 1273.1 S 0.90 E 0.65 1342.5 S 0.93 E 0.42 1411.0 S 0.96 E 0.79 1479.1 S ' 0.94 E 0,47 1550.8 S 0.91 E 0.10 1617.3 S 0.89 E 0.27 1690.6 S 0.86 E 0.24 1758.8 S 0.84 E 0.11 1827.0 S 0.80 E 0.43 1898.3 S 0.75 E 0.3~ } 1968.2 S 0.70 E 0.12 2038.0 S 0.64 E 0.57 2108.2 S 0.57 E 0.45 2177.4 S 0.50 E 0.61 2246.5 S 0.40 E 0.52 2315.1 S 0.33 E 0.83 2384.9 S 0.27 E 0.39 2454.4 S 0.19 E 0.85 2523.3 S 0.09 E 0.54 2589.0 S 0.01 W 0.25 Survey Codes: 3/MWD WEST EILEEN #Z-12 Page 3 11102/89 RECORD OF SURVEY S MEAS INCLN VERTICAL-DEPTHS C DEPTH ANGLE BKB SUB-SEA DISTNCE 3 7654 46.20 6609.6 6517.8 3 7748 46.70 6674.3 6582.6 3 7843 47.10 6739.2 6647.5 3 7937 47.90 6802.7 6711.0 3 8031 48.60 6865.3 6773.6 SECTION DIRECTION RELATIVE-COORDINATES BEARING 2645.5 S 5.00 W 2713.6 S 5.50 W 2783.0 S 5.10 W 2852.3 S 6.20 W 2922.4 S 7.70 W FROM-WELL-HEAD 2656.7 S 5.6 W 2724.6 S 11.9 W 2793.6 S 18.3 W 2862.6 S 25.1 W 2932.2 S 33.6 W 3 8124 48.50 6926.9 6835.2 3 8218 48.50 6989.2 6897.4 3 8313 48.50 7052.1 6960.4 3 8407 48.60 7114.4 7022.6 3 8500 48.60 7175.9 7084.1 2992.1 S 6.10 W 3062.5 S 7.60 W 3133.5 S 8.40 W 3203.8 S 9.60 W 3273.4 S 10.60 W 3001.4 S 42.0 W 3071.3 S 50.4 W 3141.8 S 60.3 W 3211.4 S 71.3 W 3280.0 S 83.5 W 3 8595 48.60 7238.7 7146.9 3 8692 48.90 7302.6 7210.9 3 8785 48.50 7364.0 7272.3 3 8878 48.80 7425.5 7333.7 3 8972 48.50 7487.6 7395.8 3344.2 S 12.80 W 3416.6 S 12.00 W 3485.9 S 12.80 W 3555.1 S 13.60 W 3624.9 S 13.80 W 3349.8 S 98.0 W 3421.0 S 113.6 W 3489.3 S 128.6 W 3557.2 S 144.6 W 3625.8 S 161.3 W 3 9067 48.30 7550.6 7458.9 3 9161 48.10 7613.3 7521.5 3 9275 47.70 7689.7 7598.0 3 9338 47.20 7732.3 7640.6 3 9443 47.60 7803.4 7711.6 3695.1 S 14.90 W 3764.0 S 16.40 W 3847.4 S 14.20 W 3893.4 S 10.70 W 3970.6 S 4.30 W 3694.6 S 178.9 W 3762.1 S 197.8 W 3843.7 S 220.1 W 3889.0 S 230.1 W 3965.6 S 240.2 W 3 9536 48.10 7865.8 7774.1 3 9631 48.30 7929.1 7837.4 3 9725 48.30 7991.6 7899.9 3 981'9 48.30 8054.2 7962.4 3 9912 48.00 8116.2 8024.5 4039.5 S 4.70 W 4110.4 S 4.70 W 4180.5 S 5.40 W 4250.7 S 6.40 W 4320.0 S 7.80 W 4034.3 S 245.6 W 4104.9 S 251.4 W 4174.8 S 257.6 W 4244.6 S 264.8 W 4313.4 S 273.4 W 3 10007 47.80 8179.9 8088.2 3 10101 47.90 8243.0 8151.3 3 10195 48.30 8305-8 8214.0 3 10290 48.60 8368.8 8277.0 3 10384 49.00 8430.7 8339.0 4390.4 S 8.80 W 4459..9 S 9.40 W 4529.6 S 10.80 W 4600.3 S 12.10 W 4670.6 S 11.00 W 4383.1 S 283.6 W 4451.9'S 294.6 W 4520.8 S 306.8 W 4590.5 S 321.0 W 4659.8 S 335.1 W CLOSURE DL DISTNCE BEARING /100 2656.7 S 0.12 W 0.62 2724.6 S 0.25 W 0.60 2793.7 S 0.38 W 0.48 2862.7 S 0.50 W 1.07 2932.4 S 0.66 W 1.17 3001.7 S 0.80 W 0.97 3071.7 S 0.94 W 0.90 3142.3 S 1.10 W 0.47 3212.1 S 1.27 W 0.73 3281.1 S 1.46 W 0.61 3351.2 S 1.68 W 1.30 3422.9 S 1.90 W 0.56 3491.6 S 2.11 W 0.65 3560.2 S 2.33 W 0.58 3629.4 S 2.55 W 0.34 3698.9 S 2.77 W 0.68 3767.3 S 3.01 W 0.91 3850.0 S 3.28 W 1.11 3895.8 S 3.39 W 3.09 3972.8 S 3.47 W 3.35 4041'.8 S 3.48 W 0.59 4112.6 S 3.50 W 0.21 4182.7 S 3.53 W 0.42 4252.9 S 3.57 W 0.59 4322.0 S 3.63 W 0.89 4392.3 S 3.70 W 0.61 4461.7 S 3.79 W 0.37 4531.2 S 3.88 W 0.93 4601.7 S 4.00 W 0.83 4671.8 S 4.11 W 0.79 'Survey Codes: 3/MWD '9 WEST EILEEN #Z-12 MEAS INCLN DEPTH ANGLE 10477 49.00 10571 48.80 10665 48.30 10710 48.00 'Survey Codes: VERTICAL-DEPTHS BKB SUB-SEA 8491.7 8400.0 8553.5 8461.8 8615.7 8524.0 8645.8 8554.0 3/MWD SECTION DISTNCE 4740.4 4810.7 4880.4 4913.4 RECORD OF SURVEY DIRECTION RELATIVE-COORDINATES BEARING FROM-WELL-HEAD 12.40 W 4728.5 S 349.3 W 12.50 W 4797.7 S 364.6 W 15.00 W 4866.1 S 381.4 W 16.50 W 4898.4 S 390.5 W Page 4 11/02/89 CLOSURE DISTNCE BEARING 4741.4 S 4.23 W 4811.5 S 4.35 W 4881.0 S 4.48 W 4913.9 S 4.56 W DL /lOO 0.86 0.22 1.58 1.96 '¸9 WEST EILEEN #Z-12 Page 5 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL 11/02/89 SUBSEA DEPTH 0 100 2OO 30O 4OO MEAS BKB MD-TVD VERT DEPTH DEPTH DIFF CORRECT 92 92 0 0 192 192 0 0 292 292 0 0 392 392 0 0 492 492 0 0 500 592 592 0 0 600 692 692 0 0 700 792 792 0 0 800 892 892 0 0 900 992 992 0 0 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2OOO 2100 2200 '2300 2400 25OO 2600 2700 2800 2900 1092 1092 0 0 1192 1192 0 0 1292 1292 0 0 1392 1392 0 0 1492 1492 0 0 1592 1592 0 0 1692 1692 0 0 1792 1792 0 0 1892 1892 0 0 1992 1992 0 0 2092 2092 0 0 2192 2192 0 0 2292 2292 0 0 2392 2392 0 0 2492 2492 0 0 2592 2592 0 0 2692 2692 0 0 2792 2792 0 0 2892 2892 0 0 2992 2992 0 0 RELATIVE COORDINATES FROM WELL HEAD 0.07 N 0.39 E 0.15 N 0.82 E 0,22 N 1.25 E 0.30 N 1.68 E 0.29 N 2.17 E 0.13 N 2.78 E 0.04 S 3.39 E 0.21 S 4.00 E 0.38 S 4.61 E 0.56 S 5.00 E 0.75 S 5.09 E 0.95 S 5.i8 E 1.14 S 5.27 E 1.41 S 5.33 E 2.06 S 5.27 E 2.71 S 5.22 E 3.36 S 5.16 E 4.02 S 5.10 E 4.99 S 5.10 E 6.30 S 5.16 E 7.60 S 5.21 E 8.90 S 5.27 E 10.21 S 5.33 E 11.49 S 5.54 E 12.77 S 5.83 E 14.05 S 6.11 E 15.31 S 6.38 E 16.47 S 6.58 E 17.63 S 6.78 E 18.78 S 6.98 E WEST EILEEN Page 6 11/02/89 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL SUBSEA MEAS BKB DEPTH DEPTH DEPTH 3000 3092 3092 3100 3192 3192 3200 3292 3292 3300 3392 3392 3400 3493 3492 MD-TVD VERT DIFF CORRECT 0 0 0 0 0 0 I 0 2 i RELATIVE COORDINATES FROM WELL HEAD 19.94 S 7.18 E 22.72 S 7.00 E 25.95 S' 6.72 E 33.99 S 5.53 E 47.17 S 4.65 E 3500 3595 3600 3697 3700 3801 3800 3905 3900 .... 4011 3592 3 2 3692 6 2 3792 9 3 3892 13 4 3992 19 6 65.75 $ 4.24 E 88.10 $ 3.60 E 113.86 S 2.25 E 143.11 $ 0.08 W 176.57 S 3.97 W 4000 4117 4092 4100 4226 4192 4200 4338 4292 4300 4452 4392 4400 4570 4492 26 7 35 9 46 12 60 14 78 18 214.38 S 6.71 W 257.27 S 5.89 W 306.54 $ 3.81 W 361.80 S 1.31 W 423.80 S 1.23 E 4500 4692 4592 4600 4819 4692 4700 4951 4792 4800 5091 4892 4900 5240 4992 100 22 127 27 159 33 199 40 248 49 493.61 S 2.94 E 571.22 S 5.44 E 658.21 S 8.44 E 756.24 S 11.13 E 866.59 S 12.69 E 5000 5395 5092 5100 5548 5192 5200 5700 5292 5300 5851 5392 5400 6001 5492 303 55 356 53 409 52 459 51 509 50 984.39 S 13.90 E 1100.57 S 16.51 E 1215.41 S 18.58 E 1328.22 S 21.48 E 1439.43 S 23.90 E 5500 6149 5592 5600 6298 5692 5700 6447 5792 5800 6596 5892 5900 6746 5992 558 49 606 49 655 49 704 49 754 50 1549.34 8 24.52 E 1659.19 S 25.28 E 1769.56 $ 25.71 E 1880.22 S 24.95 E 1991.49 S 23.47 E WEST EILEEN #Z-12 Page 7 11/02/89 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL SUBSEA MEAS BKB MD-TVD VERT DEPTH DEPTH DEPTH DIFF CORRECT 6000 6894 6092 803 6100 7042 6192 851 6200 7190 6292 899 6300 7338 6392 946 6400 7483 6492 992 RELATIVE COORDINATES FROM WELL HEAD 49 2101.85 S 21.11 E 48 2210.65 S 17.42 E 48 ' 2319.73 S 13.05 E 47 2427.76 S 9.17 E 46 2533.78 S 3.19 E 6500 7628 6592 1036 6600 7773 6692 1082 6700 7921 6792 1129 6800 8071 6892 1179 6900 8222 6992 1230 45 2638.17 S 4.20 W 45 2743.10 S 13.60 W 47 2850.66 S 23.93 W 50 2961.90 S 37.19 W 51 3074.18 S 50.77 W 7000 8373 7092 1281 7100 8524 7192 1332 7200 8675 7292 1384 7300 8827 7392 1435 7400 8978 7492 1487 51 51 51 51 51 3186.07 3297.68 3408.90 3519.94 3630.36 67.29 W 87.18 W 110.97 W 135.83 W 162.46 W 7500 9129 7592 1537 7600 9278 7692 1586 7700 9426 7792 1634 7800 9575 7892 1683 7900 9725 7992 1733 5O 49 48 49 5O 3738.89 3845.83 3953.03 4063.23 4174.91 191.30 W 220.60 W 238.56 W 248.00 W 257.61 W 8000 9875 8092 1784 8100 10025 8192 1833 8200 10174 8292 1882 8300 10325 8392 1933 8400 10477 8492 1985 5O 49 49 51 52 4286.23 4396.00 4505.40 4616.17 4728.53 270.00 W 285.62 W 304.10 W 326.20 W 349.35 W 8500 10629 8592 2037 52 4839.72 S 374.91 W WEST EILEEN #Z-12 Page 8 DATA INTERPOLATED FOR 1000 FT MEASURED DEPTH INTERVAL MEAS BKB SUBSEA DEPTH DEPTH DEPTH 2000 2000 1908 3000 3000 2908 4000 3982 3890 5000 4827 4735 6000 5491 5400 RELATIVE COORDINATES FROM WELL HEAD 6.40 S 5.16 E 18.88 S 6.99 E 172.88'8 3.68 W 691.86 S 9.50 E 1438.92 S 23.89 E 7000 6163 6071 8000 6845 6753 9000 7506 7414 10000 8175 8083 2179.51 2909.25 3646.08 4377.97 18.81 E 30.80 W 166.48 W 282.80 W 11/o2/89 T 500 1000 i500 ~000 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 500 J VERTICAL SECTI'ON BP EXPLORATION NEST E:I:LEEN Sect iorl TVD Scale.: ! inch = 1000 feet Dep Scale.: 1 inch = 1000 feet Dpawq .....: 11/02/89 Marker IMentification MD TVD DEPRT A) KB 0 0 0 B) TD t07i0 8646 49t3 j 500 1000 t500 2000 2500 .'-',0 O0 3500 4000 4500 5000 5500 Marker Identification MO N/S A) KB 0 0 N 0 E B) TD 10710 4898 S 390 PLAN VIEW BP EXPLORAT.'[ON ~E,ST F"rLEEN CLOSUqE ..... : 4~14 ft S 4.56 DECLI'NAT~ON.: SO.O0 E SCALE ....... : I .i. rlcll = 1000 DRANN ....... : 11/02/89 500 tO00 500 F ! i ! 1500 ................................... ~ooo ~oo ............................................. ~ ............ ~ .......... ~ ...... 3500 F ............................................................. ~/ I 5000 ~-~ ....... ~ ..... ~ ........ -----d ....... > ......................... ,:___~ ..... .................... 5500 6000 6500 3000 ORIGINAL SUB. SURFACE DIRECTIONAL SURVEY [~]UIDANCE F~ONTINUOUS r'flooL MICROFILMED Company BP EXPLORATION Well Name Z-12(21-30-11-12)(981' SNL]1786' EWL]SEC 19]TllN,R12E) Field/Location PRUDHOE BAY, NORTH SLOPEr ALASKA Job Reference No. 73543 Log¢3ed By: WARNER SCHLUMBERGER GOT DIRECTIONAL SURVEY CUSTOMER LISTING FOR BP EXPLORATION Z-12 (21-30-11-12) PRUDHO~ BAY NORTH SLOPE, ALASKA SURVEY DATE: 03-NOV-198g ENGINEER: WARNER METHODS OF COMPUTATION TOOL LOCATION: TANGENTIAL- AVERAGED DEVIATION AND AZIMUTH INTERPOLATION: LINEAR VERTICAL SECTION: HORIZo DIST. PROJECTED ONTO A TARGET AZIMUTH OF SOUTH 5 DEG 3~ MIN WEST · COMPUTATION DATE: 14-NOV-89 PAGE 1 · BP EXPLORATION Z-12 C21-30-11-123 PRUDHOE BAY NORTH SLOPE~ ALASKA TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH OEPTH DEG MIN DEG MIN DATE OF SURVEY: 03-NOV-Z98g KELLY BUSHING ELEVATION: 91.74 FT ENGINEER: WARNER INTERPELATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/ZO0 FEET FEET FEET DEG MIN 0.00 0.00 -91.74 0 0 N 0 0 E 0.00 0.00 0.00 N 0.00 100.00 100.00 8.26 0 34 N AZ 47 E 0.07 0.21 0.13 S 0.61 200.00 199.99 108.25 0 20 N 73 46 E -0.17 0.25 0.03 N 1.44 300.00 299.99 208.25 0 14 N 74 27 E -0.29 0.2,6 0.11 N 1.91 400.00 399.99 308.25 0 16 N 68 9 E -0.52 0.00 0.30 N 2.27 500.00 499.99 408.25 0 14 N 54 50 E -0.71 0.29 0.44 N 2.75 600.00 599.99 508.25 0 19 N ?B 36 E -0.96 0.21 0.66 N 3.15 700.00 699.99 608.25 0 17 N 55 41 5 -1.23 0.06 O.BB N 3.59 800.00 799.99 708.25 0 16 N 66 29 E -1.42 0.49 1.03 N 4.09 900.00 899.99 808.25 0 13 N 83 41 E -1.64 0.13 1.22 N 4.40 0 14 N 46 50 E -1.77 0.00 1.31 N 4.81 E 0 15 N 81 51 E -2.00 0.03 1.51 N 5.14 E 0 12 N 11 14 E -2.23 0.00 1.71 N 5.43 E 0 14 N 5,3 37 E -2.54 0.04 2.01 N 5.61 E 0 15 N I 51 E -2.92 0.00 2.37 N 5.82 E 0 14 N 45 50 E -3.31 0.00 2.75 N 5.96 E 0 g N 2 I W -3.62 0.55 3.03 N 6.20 E 0 7 S 0 17 W -3.6Z 0.22 3.04 N 6.11 E 0 19 S 28 45 E -3.29 0.00 2.69 N 6.30 E 0 21 S 12 16 W -2.74 0.00 2.13 N 6.38 E 1000.00 999.99 908.25 1100.00 1099.98 lOOB.Z4 1200.00 1199.98 1108.24 1300.00 1299.98 1208.24 1400.00 1399.98 1308.24 1500.00 1499.98 1408. Z4 1600.00 1599.98 1508.24 '1700o00 1699.98 1608.24 1800.00 1799.98 1708.24 1900.00 1899.98 1808.24 0 24 S 18 53 E -2.10 0.06 1.49 N 6.41 0 26 S 17 26 E -1.44 0.05 0.79 N 6.66 0 27 S 8 31 W -0.70 0.00 0.06 N 6.65 0 ZB S 7 51 E 0.09 0.16 0.74 S 6.64 0 ZB S 3 19 E 0.96 0.12 1.62 S 6.73 0 29 S 25 I W 1.74 0.00 2.39 S 6,.53 0 25 S 14 36 W 2.54 0.69 3.15 S 6.16 0 35 S I 1 E 3.38 0.19 3.99 S 6.17 0 41 S 3 39 W 4.47 0.07 5.09 S 6.14 0 42 S 8 2 W 5.75 0.52 6.36 S 6.07 ZO00.O0 1999.98 1908.24 2100.00 2099.97 2008.23 2200.00 2199.97 2108.23 2300.00 2299.97 2208.23 2400.00 2399.96 2308.22 2500.00 2499.96 2408.22 2600.00 2599.96 2508.22 2700.00 269g.g5 2608.21 2800.00 2799.95 2708.21 2900.00 2899.94 2808. Z0 S 18 55 W 6.89 0.00 7.48 S 5.7'2 E S I 44 W 7.94 0.20 8.51 S 5.52 E S B 41 W 8.97 1.32 9.54 S 5.45 E S 10 59 W 11.97 3.77 12.51 S 4.91 E S 7 18 W 19.75 2.69 20.21 S 3.73 E S 2 44 W 32.41 2.81 32.83 S 2.72 E S 0 54 W 50.33 2.20 50.78 S 2.12 E S I 49 W 72.03 2.27 72.54 S 1.67 E S 2 49 W 96.89 1.56 97.41 S 0.63 E S 4 58 W 124.95 1.74 125.43 S 3000.00 2999.93 2908.19 0 40 3100.00 3099.93 3008.19 0 31 3200.00 3199.92 3108.18 0 57 3300.00 3299.8T 3208.13 2 54 3400.00 3399.56 3307.82 5 46 3500.00 3498.74 3407.00 8 49 3600.00 3597.10 3505.36 11 41 3700.00 3694.70 3602.96 13 28 3800.00 3791.55 3699.81 15 23 3900.00 3887.52 3795.78 17 10 0.00 N 0 0 E 0.63 S 77 57 E 1.4~. N 88 50 E 1.91 N 86 49 E 2.29 N 82 30 E 2.78 N BO 50 E 3.22 N 78 9 E 3.70 N 76 11 E · 4.22 N 75 53 E 4.56 N 74 31 E 6.58 N 76 57 E 6.71 N 83 12 E 6.65 N 89 30 E 6.68 S 83 40 E 6.93 S 76 Z9 E 6.95 S 69 55 E 6.92 S 62 54 E 7.35 S 57 5 E 7.97 S 50 22 E 8.79 S 43 38 E 9.42 S 37 24 E 10.14 S 32 57 E 10.99 S 29 44 E 13.44 S 21 26 E 20.55 S 10 27 E 32.9~+ S 4 44 E 50.82 S Z 24 E 72.56 S I 19 E 97.42 S 0 22 E 1.20 W 125.44 S 0 33 W 4.99 N 74 46 E 5.36 N 73 38 E 5.69 N 72 33 E 5.96 N 70 16 E 6.29 N 67 52 E 6.56 N 65 14 E 6.90 N 63 57 E 6.82 N 63 34 E 6.85 N 66 52 E 6.72 N 71 30 E COMPUTATION DATE: 14-NOV-SO P.aGE 2 . BP EXPLORATION Z-12 C21-30-11-123 PRUOHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 03-NOV-1989 KELLY BUSHING ELEVATION: 91.74 FT ENGINEER: WARNER INTERPOLATED VALUES FOR EVEN 100 FEET DF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH OEPTH DEPTH OEG MIN OEG MIN VERTICAL DOG:LEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTZON SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 4000.00 3982.48 3890.74 19 22 4100.00 4076.28 3984.54 21 8 4200°00 4168.83 4077.09 23 26 4300.00 4259.46 4167.72 26 35 4400.00 4347.82 4256.08 29 12 4500.00 4434.01 4342.27 31 44 4600.00 4517.97 4426.23 34 1 4700.00 4599.64 4507.90 36 30 4800.00 4678.73 4586.99 39 3 4900.00 4755.00 4663.26 41 27 S 6 40 W S 2 I W S 232E S 2 56 E S 2 25 E S 2 4 E S 14,3 E S I 32 E S I 32 E S I 53 E 156..26 2.28 156o58 S 190.90 3.18 191.08 S 228.53 2.91 228.93 S 270.29 2.93 271.09 S 316.61 2.75 317.85 S 366.82 2.46 368.49 S 420.67 2.36 622.77 S 477.91 2.70 480.43 S 5'38.63 2.60 541.60 S 602.76 2.53 606.22 S 4.39 W 156.64 S I 36 W 7.43 W 191.22 S 2 14 W 7.01 W 229.04 S I 45 W 4.88 W 271.14 S I 2 W 2.73 W 317.86 S 0 30 W ~ 0.74 W 368.49 S 0 7 W 1.03 E 422.77 S 0 8 E 2.64 E 480.4¢ S 0 19 E 4.25 E 541.61 S 0 27 E 6.17 E 606.25 S 0 35 E 5000.00 4828.53 4736.79 43 52 5100.00 4899.26 4807.52 46 10 5200.00 4966.88 4875.14 48 37 5300.00 5031.97 4940.23 49 51 5400.00 5096.63 5004.89 49 33 5500.00 5161.82 5070.08 49 10 5600.00 5227.26 5135.52 49 7 5700.00 5292°99 5201.24 48 41 5800.00 5359.38 5267.64 48 13 5900.00 5426.07 5334.33 48 4 S I 45 E 669.96 S I 36 E:_ 740.07 S I 39 E 813.15 S I 35 E 888.47 S I 35 E 964.16 S 1 26 E 1039,,41 S I 17 E 1114.48 S 1 17 E 1189.31 S I 11 E 1263.56 S I Z E 1337.56 2.32 673.95 S 2.53 744.60 S 2.10 818.23 S 0.18 894.11 S 0.46 970.37 S 0.21 1046.17 S 0.68 1121.76 S 0.94 1197.11 S 0.18 1271.87 S 0.43 1346o37 S 8.37 E 674.00 S 0 43 E 10.41 E 744.67 S O 48 E 12.53 E 818.33 S 0 53 E 14.63 E 894.23 S 0 56 E 16.75 E 970.51 S 0 59 E 18.74 E 1046.34 S I 2 E 20.51 E 1121.95 S 1 3 E 22.18 E 1197.32 S 1 4 E 23.78 E 1272.09 S 1 4 E 25.21 E 1346.60 S 1 4 E 6000°00 5493.16 5401.~2 47 43 6100-00 5560.49 5468.75 47 35 6200.00 5628.01 5536.27 47 28 6300.00 5695.48 5603.74 47 41 6400.00 5762.70 5670.96 47 50 6500.00 5829.81 5738.07 47 52 6600°00 5896.96 5805.22 47 53 6700.00 5963.86 5872.12 48 3 6800.00 6030.72 5938.98 47 55 6900.00 6097.97 6006.23 47 35 S 0 59 E 1411.25 S 0 34 E 1484.74 S 0 12 E 1558.11 S 0 1 W 1631.56 S 0 2 W 1705.25 S 0 6 W 1779.04 S 0 22 W 1852.82 S 0 44 W 1926.86 S I 12 W 2000.98 S I 42 W 2074.80 0.04 1420.52 $ 0.31 1494.45 S 0.36 1568.21 S 0.17 1642.02 S 0.23 1716.05 S 0.20 1790.19 S 0.49 1864.29 S 0.37 1938.62 S 0.69 2012.96 S 0.60 2086.96 S 26.40 E 1420.76 S 1 4 E 27.32 E 1494.70 S 1 3 E 27.81 E 1568.46 S I 1 E 27.90 E 1642.25 S O 58 E Z7.86 E 1716.28 S 0 56 E 27.80 E 1790.40 S 0 53 E .1! 27.53 E 1864.50 S 0 51 E 26.81 E 1938.80 S 0 48 E 25.59 E 2013.13 S 0 44 E 23.71 E 2087.09 S 0 39 E 7000.00 6165.73 6073.99 47 14 7100o00 6233.48 6141.74 47 35 7200.00 6300.89 6209.15 47 28 7300.00 6368.77 6277.03 47 2 7400.00 6437.09 6345.35 46 45 7500°00 6505.82 6414.08 46 26 7600.00 6574.94 6483.20 46 6 7700.00 6644.16 6551.42 46 21 7800.00 6712.90 6621.16 46 53 7900.00 6780.87 6689.13 47 32 S 1 49 W 2148.18 S 2 9 W 2221.58 S 2 28 W 2295.33 S 2 36 W 2368.65 S 3 8 W 2441.59 S 3 49 W 2514.18 S 4 29 W 2586.43 S 5 32 W 2658.59 S 5 16 W 2731.22 S 5 36 W 2804.56 0.11 2160.46 S 0.84 2233.97 S 0.48 2307.78 S 0.37 2381.13 S 0.71 2454.07 S 0.45 2526.57 S 0.71 2598.65 S 0.52 2670.54 S 0.58 2742.84 S 1.01 2815.87 S 21.45 E 2160.57 S 0 34 E 18.95 E 2234.05 S 0 29 E 15.94 E 2307.83 S 0 7.4 E 12.72 E 2381.16 S 0 18 E 9.13 E 2454.08 S 0 13 E 4.70 E 2526.57 S 0 6 E 0.47 W 2598.65 S 0 1 W 6.77 W 2670.55 S 0 9 W 13.71 W 2742.88 S 0 17 W 20.50 W 2815.94 S 0 25 W COMPUTATION OATE: 14-NOV-89 PAGE BP EXPLORATION Z-Z2 (21-30-11-12) PRUDHOE BAY NORTH SLOPEr ALASKA DATE OF SURVEY: 03-NOV-lO89 KELLY BUSHING ELEVATION: 91.74 FT ENGINEER: WARNER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH OEPTH DEG MIN DEG MIN 8000.00 6847.98 6756°24 48 12 8100.00 6914.29 6822.55 48 32 8200.00 6980.57 6888.83 48 28 8300.00 7046.85 6955.11 48 30 8400°00 7113.20 7021.46 48 24 8500.00 7179.48 7087.74 48 34 8600.00 7245.61 7153.87 48 36 8700.00 7311.54 7219.80 48 53 8800.00 7377.51 7285.77 48 36 8900.00 7443.55 7351.81 48 45 9000.00 7509.72 7417.98 48 29 9100.00 7576.18 7484.44 48 11 9200.00 7642.95 7551.Z1 48 0 9300.00 7709.91 7618.17 47 39 9400.00 7777.64 7685.90 47 19 9500.00 7845.13 7753.3g 47 52 9600.00 7911.95 7820.21 48 16 9700.00 7978.37 7886.63 48 24 9800.00 8044.85 7953.11 48 14 9900.00 8111.47 8019.73 48 7 10000.00 8178.43 8086.69 47 54 10100.00 8245.56 8153.8Z 47 47 10200.00 8312.52 8220.78 48 10 10300.00 8379.01 8287.27 48 30 10400.00 8444.82 8353.08 49 4 10500.00 8510.28 8418.54 49 ZO 10600.00 8575.84 8484.10 48 57 10700.00 8642.08 8550.34 48 16 10800.00 8708.86 8617.12 48 19 10900.00 8774.87 8683.13 48 52 11000.00 8840.56 8748.82 48 58 11100.00 8905.75 8814.01 49 47 11200.00 8969.52 8877.78 50 59 11300.00 9031.64 8939.90 52 14 11400.00 9092.14 9000.40 53 29 11500°00 9151.65 9059.91 53 29 11580.00 9199.26 9107.52 53 29 VERTICAL DOGLEG RECTANGULAR COORDIN,&TES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN S 6 56 W 2878.70 S 7 39 W 2953.51 S 8 18 W 3028.32 S 9 4 W 3103.09 S 9 53 W 3177.73 S 10 56 W 3252.36 S 12 17 W 3326.95 S 13 10 W 3401.54 S 14 5 W 3475.96 S 14 52 W 3550.14 S 15 21 W 3624.08 S 15 46 W 3697.66 S 16 1~ W 3770.88 S 13 8 W 3844.06 S 6 47 W 3917.37 S 4 15 W 3991.16 S 4 30 W 4065.53 S 5 23 W 4140.28 S 6 16 W 4214.98 S 7 18 W 4289.55 S 8 24 W 6363.76 S 9 46 W 4437.74 S 10 33 W 4511.76 S 10 44 W 4586.16 S 11 17 W 4661.12 S 12 9 W 4736.29 S 13 29 W 4811.19 S 15 18 W 4885.21 S 16 32 W 4958.40 S 1.5 53 W 5032.26 S 15 38 w 5106.47 S 14 34 W 5181.23 S 13 I W 5257.46 S 11 23 W 5335.29 S 9 7 W 5414.63 S 9 7 W 5494.84 S 9 7 W 5559.01 1.53 0.34 0.56 0 ..63 0.67 0.93 1.12 0.50 0.79 0.45 0.49 0.48 0.86 4.84 4.53 0.26 0.77 0.72 0 0.89 0.88 1.27 0.55 1.65 1.15 0.62 2.39 1.21 2.08 0.69 0.73 1.76 1.67 1.78 0.00 0.00 0.00 2889.57 S 28.52 W 2889.71 S 0 34 W 2963.80 S 38.15 W 2964.05 S 0 44 W 3037.96 S 48.49 W 3038.35 S 0 55 W 3111.98 S 59.78 W 3112.56 S 1 6 W 3185.78 S 72.09 W 3186.60 S 1 18 W ' 3259.44 S 85.58 W 3260.56 $ 1 30 W ) 3332.92 S 100.65 W 3334.44 S I 44 W 3406.24 S I17.29 W 3408.26 S 1 58 W 3479.29 S 134.94 W 3481.91 S Z 13 W 3551.99 S 153.74 W 3555.32 S 2 29 W 3624.37 S 173.30 W 3628.51 S 2 4,4 W 3696.35 S 193.36 W 3701.40 S 3 0 W 3767.92 S 213.84 W 3773.98 S 3 15 W 3839.53 S 233.50 W 3846.62 S 3 29 W 3911.95 S 246.18 W 3919.69 S 3 36 W 3985.46 S 252.59 W 3993.45 S 3 38 W 4059.64 S 258.21 W 4067.84 S 3 38 W 4134.12 S 264.59 W 4142.58 S 3 40 W 4208.44 S 272.14 W 4217.23 S 3 42 W 4282.50 S 280.92 W 4291.70 S 3 45 W ,4356.08 S 291.04 W 4365.79 S 3 49 W 4429.27 S 302'65 W 4439.60 S 3 55 W 4502.36 S 315.87 W 4513.43 S 4 I W 4575.76 S 329.69 W 4587.63 S 4 7 W 4649.70 S 343.93 W 466Z.40 S 4 14 W 4723.72 S 359.29 W 4737.36 S 4 21 W 4797.34 S 376.06 W 4812.06 S 4 Z9 W , 4869.90 S 394.69 W 4885.87 S 4 38 W 4941.42 S 415.29 W 4958.84 S 4 48 W 5013.61 S 436°04 W 5032.54 S 4 58 W 5086.17 S 456.55 W 5106.62 S 5 8 W 5159.35 S 476.43 W 5181.30 S 5 17 W 5234.15 S 494.78 W 5257.49 S 5 24 W 5310.73 S 511.37 W 5335.30 S 5 30 W 5389.06 S 525.57 W 5414.63 S 5 34 W 5468.41 S 538.30 W 5494.84 S 5 37 W 5531.89 S 548.49 W 5559.01 S 5 40 W COMPUTATION DATE: 14-NOV-SO PAGE 4 , BP EXPLORATION Z-lZ C21-30-11-12) PRUOHOE BAY NORTH SLOPEs ALASKA TRUE SUB',SEA COURSE MEASURED VERTICAL VERTZCAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DOG MIN DaTE OF SURVEY: 03-NOV-lO89 KELLY BUSHING ELEVATION: 91.74 FT ENGINEER= WARNER INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 0.00 0.00 -91.74 0 0 lO'O0, O0 99g.99 908°25 0 2000,00 199g.98 1908.24 0 3000°00 2999.93 2908o19 0 40 4000.00 3982.48 3890.74 19 22 5000.00 4828.53 4736.79 43 52 6000.00 5493.16 5401.42 47 43 7000°00 6165.73 6073.99 47 14 8000.00 6867.98 6756.24 48 12 9000.00 7509,72 7417.98 48 29 N 0 0 E 0.00 N 46 50 E -1.77 S 18 53 E -2.10 S 18 55. W 6.89 S 6 40 W 156.26 S I 45 E 669.96 S 0 50 E 1411.Z5 S 1 49 W 2148.18 S 6 56 W 2878.70 S 15 21 W 3624.08 S 8 24 W 4363.76 S 15 38 W 5106.47 S 9 7 W 5559.01 10000.00 81'T8.43 8086.69 47 54 11000.00 8840.56 8748.82 48 58 11580.00 9199.26 9107.52 53 29 0.00 O.OO N 0.00 1.31 N O. 06 1.49 N 0.00 7.48 S 2.28 156.58 S 2.32 673.95 S 0.04 1420.52 S 0.11 2160.46 S 1.53 0 0.88 0.73 0.00 0.00 E 0.00 N 0 0 E 4.81 E 4.99 N 74 46 E 6.41 E 6.58 N 76 57 E 5.72 E 9.42 $ 37 24 E 4.39 W 156.64 S I 36 W ~, 8.37 E 674.00 S 0 43 E 26.40 E 14Z0.76 S I 4 E 21.45 E Z160.57 S 0 34 E 2889.57 S 28.52 W 2889.71 S 0 34 W 3624.37 S 173.30 W 3628.51 S Z 44 W 4356.08 S 291.04 W 4365.79 S 3 49 W 5086.17 S 456.55 W 5106.6Z S 5 8 W 5531.89 S 548.49 W 5559.01 S 5 40 W COMPUTATION DATE: 14-NOV-89'~ PAGE BP EXPLORATION Z-12 (21-30-11-123 PRUOHOE BAY NORTH SLOPE~ ALASKA DATE DF SURVEY: 03-NOV-1989 KELLY BUSHING ELEVATION:. 91.74. FT · ENGINEER: WARNER INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN 0.00 0.00 -91.74 0 0 N 0 0 E 91.74 91.74 0.00 0 33 N B4 16 E 191.75 191.74 100.00 0 22 N 73 55 E 291.75 291.74 200.00 0 15 N 78 41 E 391.75 391.74. 300.00 0 16 N 65 0 E 491.75 491.74 400.00 0 15 N 59 56 E 591.75 591.74 500.00 0 18 N 78 36 E 691.75 691.74. $00.00 0 17 N 53 4 E 791.75 791.74 700.00 0 18 N 71 53 E 891,.75 891.74 800.00 0 12 N 78 40 E 991.75 991.74 900.00 1091.76 1091.74 1000.00 1191.76 1191.74 1100.00 1291.76 1291.74 1200.00 1391.76 1391.74. 1300.00 1491.76 1491.74. 1400.00 1591.76 1591.74 1500.00 1691.76 1691.74 1600.00 1791.76 1791.74 1700.00 1891.76 1891.74 1800.00 014. N 5135 E 0 14 N $0 0 E 0 11 N 11 38 E 0 14 N 52 4.7 E 014 N 3 13 E 0 14 N 47 5 E 0 11 N 11 52 E 0 6 S 12 41 W 0 18 S 29 35 E 0 21 S 12 13 W 1991.76 1991.74 1900.00 2091.77 2091.74. 2000.00 2191.77 2191.74. 2100.00 2291.77 2291.74 2200.00 2391.78 2391.74 2300.00 2491.78 2491.74 2400.00 2591.78 2591.74 2500.00 2691.79 2691.74 2600.00 2791.79 2791.74 2700.00 2891.80 2891.74. 2800.00 0 24 S 17 33 E 0 26 S 18 21 E 026 S ~3 3.2 W 0 28 S 7 37 E 029 S 4 8 E 028 S 24 0 W 0 26 S 21 7 W 035 S 2 3 E 041 S ~ 29 W 0 43 S 4 52 W 2991.81 2991.74 2900.00 0 40 3091.81 3091.74. 3000.00 0 32 3191.82 3191.74 3100.00 0 51 3291.86 3291.74 3200.00 2 36 3392.15 3391.74 3300.00 5 33 34.92.92 3491.74 3400.00 8 37 3594.53 3591.74 3500°00 11 34 3696.96 3691.74. 3600.00 13 25 3800.Z0 3791.74 3700.00 15 23 3904.42 3891.74 3800.00 17 14 S 19 11 W S 2 37 W S 7 48 W S 11 B W S 7 28 W S 2 54 W S I 2 w S I 46 W S Z 49 W S 5 4 W VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET OEG/JO0 FEET FEET FEET DEG MIN 0.00 0.00 0.00 N 0.00 E 0.09 0.41 0.14 S 0.53 E -0.15 0.31 O.OZ N 1.39 E -0.28 0.17 0.10 N 1.88 E -0.50 0o00 0.28 N 2.24 .E -0.69 0.39 0.42 N 2.7,2 E -0.95 0.25 0.65 N 3.11 E -1.20 0.00 0.86 N 3.56 E -1.40 0.36 1.02 N 4.05 E -1.63 0.26 1.21 N 4..37 E O. O0 N 0 0 E 0.55 S 75 14 E 1.39 N 89 21 E 1.88 N 87 0 E 2.26 N 82 65 E 2.75 N 81 7 E 3.18 N 7~B 8 E 3.66 N 76 25 E 4.18 N 75 56 E 4.53 N 74 28 E -1.75 0.16 1.29 N 4.79 E -1.99 0.10 1.50 N 5.11 E -2.20 0.00 1.68 N 5.42 E -2.52 0.03 1.99 N 5.58 E -2.89 0.00 2.33 N 5.82 E -3.29 0.00 2.73 N 5.93 E -3.60 0.70 3.01 N 6.20 E -3.63 0.2¢ 3.05 N 6.11 E -3.32 0.00 2.73 N 6.27 E -2.79 0.00 2.18 N 6.39 E 4.96 N 74 55 E 5.33 N 73 36 E 5-68 N 72 47 E 5.92 N 70 122 E 6.27 N 68 9 E 6.53 N 65 19 E 6.89 N 64 6 E 6.83 N 63 28 E 6.84 N 66 30 E 6.75 N 71 8 E -2.16 0.11 1.54 N 6.39 E -1.49 0.00 0.85 N 6.64. E -0.77 0.00 0.12 N 6.66 E O.OZ 0.09 0.67 S 6.63 E 0.89 0.12 1.55 S 6.73 E 1.68 0.00 2.33 S 6.56 E 2.48 0.48 3.09 S 6.18 E 3.29 0.37 3.91 S 6.17 E 4.37 0.00 4.99 S 6.15 E 5.64 0.39 6.26 S 6.08 E 6.58 N 76 26 E 6.70 N 8Z 41 E 6.66 N 88 58 E 6.66 S 84 13 E 6.91 S 77 2 E 6.96 S 70 28 E 6.91 S 63 23 E 7.31 S 57 38 E 7.92 S 50 57 E 8.73 S 44 9 E 6.80 0-00 7-39 S 5.75 E 7.86 0.14 8.44 S 5.52 E 8.86 1.24 9.42 S 5.47 E 11.58 3.45 12.12 S 4.98 E 18.98 2.60 19.44 S 3.83 E 31.34 2.82 31.76 S 2.77 E 49.23 2.24 49.67 S 2.14 E 71.32 2.40 71.83 S 1.69 E 96.95 1.57 97.47 S 0.62 E 126.26 1.75 126.73 S 9.36 S 37 53 E 10.08 S 33 11 E 10.89 S 30 10 E 13.11 S 22 ,?.1 E 19.82 S 11 8 E 31.88 S 4 59 E 49.72 S Z 28 E 71.85 S 1 21 E 97.67 S 0 22 E 1.31 W 126.74 S 0 36 W · COMPUTATTON DATE: 14-NOV-89 PAGE BP EXPLORAT!ON Z-12 C21-30-11-12) PRUDHOE BAY NORTH SLOPE, ALASKA TRUE SU~-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN DATE OF SURVEy: 03-NOV-1989 KELLY BUSHING ELEVATION: 91.74 FT ENGINEER: ~ARNER INTERPOLATED VALUES FOR EVEN 109 FEET DF SUB-SEA DEPTH VERTICAL DOGLEG RECTANGULAR COORD:NATES HORIZo DEPARTURE SECTION SEVERITY' NORTH/SOUTH EAST/WEST DISTo AZIMUTH FEET OEO/lO0 FEET FEET FEET OEO NIN S 6 46 w 159.52 2.43 159.82 S S I 0 w 196.90 2.95 197.09 S S 2 53 E 238.49 3.14 238.99 S S 2 41 E 286.61 2.35 287.57 S S 2 15 E 341.56 2.48 343.01 S S I 49 E 403.32 2.26 405.?.8 S S I 32 E 472,.07 2.85 474.55 S S I 35 E 549.26 2.47 552.31 S S I 55 E 635.57 2.37 639.30 S S I 37 E 732.40 2.47 736.87 S 4009.81 3991.74 3900.00 19 36 4116.59 4091.74 4000.00 21 30 4225.03 4191.74 4,100. O0 24 10 4336.25 4291.74 4200.00 27 32 4450,,63 4391.74 4300.00 30 31 4568.47 4491.74 4400. O0 33 18 4690.15 4591.74 4500.00 36 14 4816,.86 4691o74 4600. O0 39 27 4949.45 4791.74 4700.00 42 61 5089.21 4'891o74 4800.00 45 54 S I 36 E 841.50 S I 35 E 958.46 S I 21 E 1073.75 S I 17 E 1187.90 S I 7 5 1299o51 S 0 51 E 1409.70 S 0 24 E 1518o7~ S 0 ,1 W 1627.46 S 0 3 W 1737.17 S 0 20 W 1847.08 5237.88 4991.74 4900.00 49 20 5392.46 5091.74 5000.00 49 35 5545.7¢ 5191.74 5100.00 49 6 5698.12 5291.74 5200.00 48 41 5848.56 5391.74 5300.00 48 12 5997°89 5491.74 5400°00 47 43 6146.32 5591.74 5500.00 47 33 '6294.44 5691.74 5600.00 47 41 6443.26 5791.74 5700.00 47 51 6592.22 5891.74 5800°00 47 51 S 0 54 W 1957.80 S I 41 W 2068.01 S I 54 W 2176.26 S 2 27 W 2285.37 S 2 43 W 2393.24 S 3 43 W 2499.37 S 4 44 W 2~03.89 S 5 28 W 2708.70 S 5 46 W 2816.45 S 7 33 W 2928.00 6741.73 5991.74 5900.00 48 6 6890.78 6091.74 6000.00 4'7 38 7038.32 6191.74 6100.00 47 16 7186.46 6291.74 6200.00 47 32 7333.67 6391.74 6300.00 46 57 '7479.55 6491.74 6400.00 46 29 7624.23 6591.74 6500.00 46 7 7769.10 6691.74 6600.00 46 41 7916.10 6791.74 6700.00 47 38 8065.94 6891.74 6800.00 48 33 S 8 25 W 3040.91 $ 9 38 W 3153.63 S 11 10 W 3266.19 S 12 59 W 3379.07 S 14 17 W 3491.93 S 15 14 W 3604.07 S 15 51 W 3714.77 S 14 44 W 3824.24 S 5 40 W 3932.67 S 4 23 W 4042.93 8216.84 6991.74 6900.00 48 30 8367.67 7091.74 7000.00 48 23 8518.53 7191.74 7100.00 48 35 8669.90 7291.74 7200.00 48 50 8821.53 7391.74 7300.00 48 37 8972.88 7491.74 7400.00 48 29 9123.33 7591.74 7500.00 48 9 9272.95 7691.74 7600.00 47 56 9420.80 7791.74 7700.00 47 22 9569.67 7891.74 7800.00 48 8 1.74 846.79 S 0.41 964.62 S 0.20 1080.75 S 0.95 1195.70 S 0.16 1308.06 S 0.~03 1418.96 S 0.29 1528.64 S 0.18 1637.90 S 0.23 1748.12 S 0.42 1858.53 S 0.35 1969.66 S 0.52 2080.16 S 0.28 2188.59 S 0.54 2297.80 S 0.38 2405.72 S 0.51 2511.78 S 0.80 2616.06 S 1.14 2720.41 S 1.00 2827.70 S 0.42 2938.49 S 0.54 0.61 1.06 0.61 0.73 0.32 0.19 4.34 3.63 0.37 4.77 W 159.89 S I 43 W 7.60 W 197.24 S Z 13 W 6.54 W 239.08 S I 34 W 4.07 W 287.60 S 0 49 W 1.70 W 34~3.02 S 0 17 W 0,,49 E 405.28 S 0 4 E 2.48 E 474.56 S 0 18 E 4.55 E 552.33 S 0 28 E 7.27 E 639.34 S 0 39 E 10.19 E 736.94 S 0 48 E 13.33 E 846.90 S 0 54 E 16.59 E 964.76 S 0 59 E 19-57 E 1080.93 S I 2 E 22.15 E 1195.90 S I 4 E 24.50 E 1308.29 S I 4 E 26.38 E 1419.20 S I 4 E 27.61E 1528.89 S I 2 E Z7.90 E 1638.14 S 0 59 E 27.85 E 17~8.35 S 0 55 E 27.56 E 1858.73 S 0 51 E 26.38 E 1969.83 S 0 46 E 23.91 E 2080.29 S 0 40 E 20.55 E 2188.69 S 0 32 E 16.36 E 2297.86 S 0 24 E 11.58 E 2405.75 S 0 17 E 5.67 E 2511.78 S 0 8 E 1.88 W 2616.06 S 0 2 W 11.61 W 2720.44 S 0 15 W 21.68 W 2827.78 S 0 26 W 34.78 W 2938.70 S 0 41 W 3050.43 S 50.31 W 3050.85 S 0 57 W 3161.96 S 68.00 W 3162.69 S I 14 W 3273.08 S 88.24 W 3274.27 S I 33 W 3384.16 S 112.17 W 3386.02 S I 54 W 3494.95 S 138.90 W 3497.71 S 2 17 W 3604.79 S 167.95 W 3608.70 S 2 40 W 3713.08 S 198.09 W 3718.36 S 3 3 W 3820.09 S 228.63 W 3826.92 S 3 26 W 3927.16 S 247.81 W 3934.97 S 3 37 W 4037.10 S 256.46 W 4045.24 S 3 38 W COMPU'TATION DATE: 14-NOV-S9 PAGE BP EXPLORATION Z-12 (21-30-11-123 PRUDHOE BAY NORTH SLOPEr ALASKA DATE OF SURVEY: 03-NOV-1989 KELLY BUSHING ELEVA'TZON:i 91.74 FT ENGINEER: WARNER INTERPOLATED VALUES FOR EVEN 100 FEET OF SU6-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIHUTH DEPTH DEPTH DEPTH DEG MIN DEG VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET OEG HIN g720.13 7991.74 7900.00 48 26 9870.42 8091.74 8000.00 48 13 10019.85 8191.74 8100.00 47 53 10168.88 8291.74 8200.00 48 2 10319.28 8391.74 8300.00 48 52 10471.61 8691.74 8600.00 69 7 10624.13 8591.74 8500.00 48 36 10774.33 8691.74 8600.00 48 2 10925.66 8791.74 8700.00 48 56 11078.33 8891.74 8800.00 69 32 S 5 33 W 4155.34 S 6 58 W 4267.51 S B 38 W 4378.47 S 10 26 W 4488.68 S 10 45 W 4600.58 S 11 57 W 4716.93 S 13 56 W 482g.17 S 16 31 W 493g.62 S 15 53 W 5051.29 S 14 54 W 5164.91 0.56 0.89 O.B7 0.46 2.4B 0.91 1.74 1.27 0.63 1.94 4149.11 S 266.02 W 4157.63 S 3 40 W 4260.63 S 278.18 W 426g.70 S 3 64 W 4370.65 S 293.20 W 43B0.47 S 3 50 W 4479.58 S 311.65 W 4490.41 S 3 59 W 458g.99 S 332.38 W 4602.01 ,S 4 9 W 470Z.70 S 354 80 W 4716 06 S 4 19 W ) . . 4814.99 S 3B0.35 W 48.29.98 S 4 31 W 4923.0B S ~,09.B5 W 4940.1! S 4 46 W 5032.21 S 441.33 W 5051.53 S 5 I W 5143.36 S 47Z.25 W 5164.99 S 5 15 W 11235.46 8991.74 8900.00 51 24 11399.31 9091.74 9000.00 53 28 11567.36 9191.74 9100.00 53 29 11580.00 919g.26 g107.52 53 29 S 12 29 W 5286.88 S 9 B W 5414.08 S 9 7 W 5548.87 S 9 7 W 5559.01 1.66 9.38 0.00 0.00 5261.11 S 500.87 W 5284.90 S 5 26 W 5388.5Z S 525.48 W 5414.08 S 5 34 W 55Z1.86 S 5~6.88 W 5548.88 S 5 39 W 5531.89 S 548.49 W 5559.01 S 5 40 W SCHLUHBFRGER D I RECT I ONAL SURVEY COMPANY BP EXPLORAT I ON WELL Z-12 (21-30-11-12) FIELD PRUDHOE BAY - COUNT. RY USA RUN TWO DATE LOOOED- 03 - NOV - 89 REFERENCE 73B43 WE~L · (981 ' Z-12 (21-30-1;"-"72) ~ HORIZONTAL PROJECTION SNL, 1786' EWL, SEC 19, TllN, R12E) NORTH 2000 looo -I000 -2000 -3000 -4000 -SO00 SOUTH -6000 -4000 WEST REF '73S43 SCRL~ = 1/1000 IN/FT -9000 -2000 -1000 0 1000 2000 3000 4000 EAST WEUL- Z-12 (21-30-1~-'~,2) -" VERTICAL (981' SNL, 1786' EWL, ~EC 19, TllN, R12E) · PROJECTION - ]000 0 0 lO00 2000 9000 4000 5000 6000 .... i----;':-·-h-.~ ...... 4--.-!.--k.~ ....... i.-4--4---.i ....... h-~---4.--.i ........ !-.-i..-;...·i-' ....... i.-..!.4 ....... i.--~.--k-.i--4---i-·4--4..-;---L...~.4..~-4 ...... ;...4.--b4 ....... i--h-L-! ....... .... t'"'r"m'"T"'C'F'T'T"i"T'T'T'T'T-'?'T"?""~ ........ r-?C'C'FT'-C?"~' ....... C¥'CT--["T"?F-T'"]'"'Cm"T'7"7"T'-?~ ........ 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L-~-L-~ ....... ~-.~..J4-. ::::::::::::::::::::::::::::::::::: ::::::::::::::::::::::::::::::::::::: :::::::::::::::::::::::::::::::::::::: ,..~...~.4...~...'.4.+-~...~ ...... ~---;-4-+'-4-.~---~.-4---..-~.-4---~.-.~---'-..-~-4.-4---~ ...... ~.-.~..4.-.~..-'4.:-~.4..~ ...... ;..~----~..4.~-'.--~---~.+-~ ........ ~....~....~...~..4..++..~....~ ....... ~.-..~+.~..-i.-+..~.+..~ ........ ~..+..-~..-~ ....... -~--4-.~...~.. ...~..4~-~4 ..... ~...~..¢~ -~-~4 ...... 4..-;--.~...¢ .... ~.--~.~--~.-., ..4--4..4.-4.-....~-P.~-- ~..-~...4..4.--~ ..... P..¢..4.-.4 ....... ~..4..4--; ..... ¢..-;.--P-~.. ...¢..4....P.~.. -4...~...~...¢ ....... ¢--P.-b. 4 ...... ~...~4...~..~ : : ' : ~ : : : : : : : : ~ : : : : 2 ~ : : : ' : : :4 : : : : ' ' '-'-~-' ..4-~ ~ ~ ~ ~ ~ 4-~ ~ ~ 4 ; ' ' ~ ........... 7000 186. PROJECTION ON VERTICAL PLANE 186. - SCALED IN VERTICAL OEPTHS HORIZ SCALE = 1/1000 IN/FT Bp EXPLORATIoN TO: DistribUtion ~P EXploration Al 900 East Be-- (aska) Inc. '~$0~ ~0 P~.O. ~ox 196612 ulevarcl From: SUbject: Inf°rma ti on Well ~eCords Control LR2.i F--26 Z-12 Date: 01/02 Tr ansm~ ~ L _/9 0 .... ~Cal: 80750 COClOsed is qUestio;~s' Your _copy of Please ~'ontact B-21 ~ Records at (907) 564.4445. You B-24 PROD_F E'O1 PROD-F 12/24/89 PERF 12/25/89 PERF 12/22/89 12/23/89 PROD & PITS 12/21/89 #1 ~1 9500-9959 10300_10619 Sch #I 9300.9714 Sch #1 10250.I0538 Sob #1 11100.11407 have 5" 5" Distribution: ARCo CHEVRON eXXoN GEOscIENCEs HOUSTON MOBIL PHILLipS RESERVo ARCHIvEs RECEIVED JAN - Alaska 01! ~ Gas Cons, Ancl~emge BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: HOUSTON ARCO CHEVRON EXXON TExAco MOBIL PHILLIPS ARCHIVES DATE: 12/14/89 T#: 80695 BP FINAL DATA - PRESSURE SURVEY DATA Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. F-34 BHP Pressure Report 11/24/89 Camco F-37 BHP Pressure Report 11/24/89 Camco Z-12 BHP Pressure Report 11/26/89 Camco Z-18 BHP Pressure Report 11/26/89 Camco RE ED DEC2819B9 AlaSka 0il & Gas Cons. Anchorage Information Control Well Records LR 2-1 J. Dietz/S. McCurry BP EXPLORATION BP Exploration (Alaska) Inc, 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: HOUSTON ARCO CHEVRON EXXON MOBIL PHILLIPS GEOSClENCES ARCHIVES DATE: 11/10/89 T~: 80592 BP OPEN HOLE FINAL LOGS Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. HOU/UNIT/STATE: Z-12 Mudlog 10/27-28/89 #- 10775-11580 NL Baroid STATE ONLY: DIRECTIONAL SURVEYS Magnetic Single Shot Directional Survey Date: Gyroscopic Directional Survey Date: Information Control Well Records LR 2-1 J. Dietz/S. McCurry Job#: t ECEIVED ^laska Oil & 6as ~ons. ~ommissio~ Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO ARCO EXXON PHILLIPS STATE 6F ALASKA Date: 11/06/89 T#: 80560 SYSTEM Tape & Transmittal Only ARCHIVES BP MAGNETIC LIS TAPE & LISTING Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. Z-02 Z-12 CH/CNL/MS 10/29/89 #- 9240-9852 Atlas~4025 1600bpi API#50-029-21814 OH/DIFL/CN/AC/GR 10/29/89 #- 7471-11586 Atlas#4026 1600bpi API#50-029-21977 Tape Pos#06768 Tape Pos#06769 Information Control Well Records LR2-1 J. Dietz/S. McCurry BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 To: Distribution Date: 11/09/89 Transmittal: 80578 From: Information Control Well Records LR2-1 Subject: BP CASED HOLE FINAL LOGS Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. D-18 Completion 11/06/89 #1 9634-11304 Sch 5" E-15 Completion 11/05/89 #1 10300-10708 Sch 5" F-37 Completion 11/04/89 #1 10980-11345 Sch 5" W-44 Completion 11/01/89 #1 11520-12292 Sch 5" W-44 Static Pres 11/03/89 #i 12166-12300 Sch Z-12 CBT 11/03/89 #1 10498-11433 Sch 5" Z-12 TCP 11/03/89 #3 11040-11240 Sch 5" Z-12 CET 11/03/89 #1 10498-11453 Sch 5" Distribution: ARCO CHEVRON EXXON GEOSCIENCES HOUSTON MOBIL PHILLIPS ARCHIVES C0mmissi0 Anchorage TUE RECF. IV£D 'T 1 7 1989 Gas Cons. Commission Anchorage STATE OF ALASKA ALASKA OIL AND GA~ CONSE'~VATtON COHHISSION BOPE Inspection Report P.O1 RepresentatH ye ~ ........./,.~.~_ cast.~ ,.~ ~_ .......... Z&$~' ft Genera] hou~ekeeping Re,cave p~: ~ HUD SYeTEHS: Trip tank ~it gauge Flow monitor Gas de~ectors ~ Well sign BOPE STACK ,' Annular ~reventer P~pe rems BI tnd rams Choke 1 ~ ne valvas HCR valve ~t1~ line valves Check valve Full charge pressure ~_~- ,...'~(~_ ' ,- p~tg Pre~ altec closure ....... ~ Pump (ncr clo, press 200 pstg mln sec Full charge presl etta(ned ~min Control,: Naster .... , ~ _,,- ~_ , .... ~- ~:- '::-- e -- re~t,~ Blind KELLY AND FLOOR SAFETY VALVES= ~ ~j. ~ ~, ..m,. , ,- .~ _ ~ - Upper Kelly ~ Te,t prea~ure Ball type ~ Teat presaure {n~t~e flOP ~ Te~t pressure .... /' t/ Choke manifold ~ Te~t peen~ure. Numbee ?lenge~ _. : ....~ ~ Adjustable choke, ....... ~.. / Hydraul{cally operate~ choke ........ _ TEST RESULTS: Fatlures_.. ~._. Te~t time ,.-- :.. .:-- _ hrs Repate ar'replacement of failed equipment to be made wtthin ~ days. ~mm.~mmm~ ............... . . ....... 1-: ~_-,u ...... -- ....- '-" - '. --- · --- ........ ..... -- 11 ....... i e-- -- ' -- --- _.' -- __~',--~--- Oistribut~on: or~g - AOGCC - O~erator - Supervtso~ (rev 05/17/8~) I n~peetor: ....... , . .:.:- ~..- Exl;enclecl Page 1, 1 m ul~_ "1 ,,. Exl;endecl Page / -'"'"'"'-"' ...... ~,~-.-- ...... September 20, 1989 Telecopy: (907)276-7542 J. G. Vidrine Drilling Engineering Supe~isor BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612 Prudhoe Bay Unit Z-12 BP Exploration (Alaska) Inc. Permit No. 89-102 Sur. Loc. 981'SNL, 1786'EWL, Sec. 19, TllN, R12E, UM. Bt~oie Loc. 1386'SNL, 3727'WEL, Sec. 30, TllN, R12E, UM. Dear Mr. Vidrine: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does not ~xempt you from obtaining additional permits required by law from other governmental agencies, and ~es not authorize conducting drilling operations until all other required permitting determinations are made. To aid us in scheduling field work, please notify this office 24 hours prior to co~ncing i~sgaliation of the blowout prevention equipmeng so that a representative of the Commission may be present to witness testing of the equipment before the surface casing shoe is drilled. Where a diverter system is required, please also notify this office 24 hours prior to commencing equipment installation so that the Commission may witness testing before drilling below the shoe of the conductor pipe. Ve~.~ tru!~,~ours, Chaiman o f Alaska Oil and Gas Conservation Co~ission BY O~ER OF THE COMI~ISSION dlf Enclosure Depar=ment of Fish & Game, Habitat Section w/o encl. Department of Environmentai Coaservatlon w/o encl. BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 September 15, 1989 Alaska Oil & Gas Conservation Commission 3001 Porcupine Dr. Anchorage, Alaska 99501 Attn' Mr. C. V. Chatterton Z-12 (21-30-11-12) PBU Enclosed, in triplicate, is form 10-401, our Application for Permit to drill the above-named well. Also included are the attachments noted on the permit form and our check in the amount of $100.00 to cover the permit filing fee. ~. G~. VY°urs ' ~e~l_Y_.~ Drilling Engineering Supervisor JGV/KTH cc: Susan Leach Well File STATE OF ALASKA "-": ALASKA OiL AND GAS CONSERVATION COMIv~SSION PERMIT TO DRILL 2O AAC 25.005 ia. Type of' work Drill [] Redrillr-Illb. Type of well. Exploratory[] 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 P0ol BP Exoloration KBE = 92 feet Prudhoe Bay Field/Prudhoe 3. Address 6. Property Designation Bay Pool P. O. Box 196612. Anchoraoe. Alaska 99519-6612 ADL 47453 4. Location of well at surface 7. Unit or property Name 11. Type Bond(s,,e 2o Mc 25.025) 981' SNL, 1786' EWL, SEC. 19, T11N, R12E Prudhoe Bay Unit At top of productive interval 8. Well number Number 1100' SNL, 3700' WEL, SEC. 30, T11N, R 12E Z- 12 (21-30-11-12) 2S 100302630-2 77 At total depth 9. Approximate spud date Amount 1386'SNL, 3727' WEL, SEC. 30, T11N, R12E Ocotber 10, 1989 $200,000.00 1'2. Distance to nearest 13. Distance tcJ nearest well 14. Number of acres in property15. Proposed depth (MD and TVD) ,in. 28246 @ 1250' feet Z-14 @ 70.6 feet 2560 11619' MD / 9181' TVDfeet 16. To be completed fo~: deviated wells'" 17. Anticipated pressure (see 20 ^AC 25.o35 Kickoff depth 3200 feet Maximum hole angle 48.8,¢ Maximum sudace 3330 psig At total depth (TVD) ~800'/4390 psig 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) 20" Cond. 80' Surface 110' 110' 17-1/2" 13-3/8" 68# L-80 Butt 2622' Surface 2652' 2652' 3684 cuft Permafrost 12-1/4" 9-5/8" 47# NTaOS NSCC 10836' Surface 10866' 8685' 2365 cu fl Class G 8-1/2" 5-1/2" 17# L-80 Butt 1133' 10486' 8435' 11619' 9181' 462 cuft Class G ,, 'i 9. 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 Intermediate Production Liner Perforation depth: measured .-,.,~,~,~:~ true vertical 20. Attachments Filing fee [] Property plat [] BOP Sketch' [] Diverter Sketch [] Drilling program [] Drilling fluid program [] Time vs depth plot [] Refraction analysis [] Seabed report[] 20 AAC 25.050 requirements[] 21. I hereby,cedif~y ~that ng is true and correct to the best of my knowledge Signedf'l "t'.,f~ %[ ~~ ~'~Title Drilling Engk~eering Supervisor Date . /,-/"' ' Commission Use Only Permit_Numar IAPI number IApproval date jSee cover letter ~'-/O ~ , I5o-o ~...'~ - Z/, ¢ ~'7 I 09/20/89 . Ifor other requirements Conditions of approval Samples requir?d [] Yes .~No Mud Icg required i-IYes~l'No Hydrogen sulfide measures_ [] Yes ~ .No Directional. survey required ~ Yes [] No Required working~Frflssu¢~or~ /~2M.; Ej3M; ~5M; F'I10M; E]151~1; Other: ----~:- ~--/ " by order of . Approved by ~///'~. -. ~~~~-~~~ Commissioner me corn. m,ssion. Form 10-401 Rev. 12-1-85 Submit ~.te AFE No. PROPOSED DRILLING AND COMPLETION PROGRAM ,WELL Z-12 [21-30-11-121 PBU Install and cement 80' of 20" conductor to surface. Install 20" diverter. The Drilling fluid program will consist of an 9.5-10.0 ppg spud mud in the 17- 1/2" hole, a 9.5-10.4 ppg water base mud in the 12-1/4" hole and a 9.6 ppg water base mud in the 8-1/2" hole. Drill 17-1/2" hole to 2662' and cement 13-3/8" L-80 Buttress casing to surface. Install blowout prevention equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annular preventer. Maximum possible bottomhole pressure is 4390 psi at 8800' TVDss based on original reservoir pressure. Maximum possible surface pressure is 3330 psi based on a gas column to surface from 8600' TVDss and an oil column to 8800' TVDss. Directionally drill 17-1/2" and 12-1/4" hole to the 9-5/8" casing point above the Sadlerochit Sandstone. Run 9-5/8" 47# NT80-S NSCC casing to within 10' of 12-1/4" TD and cement with Class G cement around the 9-5/8" shoe. The annulus will be freeze protected by dry crude. Directionally drill 8-1/2" hole to TD. Run 5-1/2" liner from TD to 250' inside 9-5/8" casing shoe and cement using Class G cement. Clean out to 5-1/2" float equipment. Change over to NaCL completion fluid. Test casing and lap to 3000 psi. Run 9-5/8" production packer on tubing. Set packer 50' above top of liner. A subsurface safety valve with dual control lines will be placed 100' below base of permafrost. Install and test Xmas tree. Displace tubing to diesel. Set and test packer. The well will be perforated with rig on location. Tubing Size: Tailpipe Size: SAL: 9/7/89 3-1/2", 9.2# L-80, EUE 8 Round A/B Mod IPC TBG GLM's. 3-1/2" TAILPIPE PROPOSED DOWNHOLE DIAGRAM WELL Z-12 [21-30-11-121 PBU PROPOSED DEPTH BKB 20" Conductor 110 Ball Valve 2100 13-3/8" Casing Shoe 17-1/2" Open Hole 2652 2662 3-1/2" 9.2# L-80 EUE 8RD A/B MOD Butt IPC. Tubing with 7 GLM's 9-5/8" Packer 10410 5-1/2" Tieback Assembly 10486 9-5/8" Shoe 10866 12-1/4" Open Hole 10881 5-1/2" 17# L-80 BUTT Liner 5-1/2" PBTD 11619 5-1/2" Liner Shoe 11619 8-1/2" Open Hole 11619 $AL:9-7-89 B.O.P. STACK CONFIGURATION 13-5/8 IN. TRIPLE RAM STACK 5000 PSl WP DRILLING ,, / ANNULAR PREVENTER PIPE RAMS ,. , BL ! ND RAMS I L, IN. KILL LINE [[ 'J~ 4IN. CHOKE LINE I DRILLING I PIPE RAMS [ , SURFACE HOLE DIVERTER SYSTEM Two lines venting 90 deg. apart in directions that ensure safe down wind venting, and ex- tending to a point at least 100' from any potential source of ignition. 10" Full Opening Valves ~ as required 43' Dresser Sleeve 10" Diverter Line 1. All pipe connections 150# ANSI Flanges or welded connections and secured to prevent movement. .... 2, Manual l v ~ vawes,' mechanically connected to ensure that one valve is fail-safe open at all times. 3. All turns are 90 deg. and targeted. 10" Full opening ball valve w/Hydraulic Actuator Cellar 20" Diveder Spool w/10" Side Outlet JWB 2/20/89 I NORTH WE;CC ~ Zo I~ SURFACE LOCATION j, , LAT. · ?0° 17 ' 51.676 tLOI~G, · 149° I1' Sc~.95~" 959 , 099. 97 599 , 509. ?9 ZONE 4 981' FRO~ N. LINE SECT 19 1786' FROM 11. LINE SECT. 19 T. I~ N. T. II N. T lIN. T. ION. 6 (~12 7 ~.3- .lI-IZ 24 19 0 ~CALE : ~ SPINE ROA PAD ~) 32 II- I ( MILES ) 28 W. E. N. W. 34 rw. 'C' CERTIFICATE OF SURVEYOR: I HEREBY CERTIFY THAT I AM PROPERLY REGISTERED AND LICENSED TO PRACTICE LAN:, SURVEYING ~ THE STATE OF ALASKA AND THAT THIS PLAT REPRESENTS A LOCATION SURYEY MADE BY ME OR UNDER MY SUPERVISION, AN:) THAT iLL DIMENSIONS AND OTHER DETAILS AR/E CORRECT. --'~'~'"-*',"'--~'/ ~-~ .... ~'~" NOV. ZO,,~ SURVEYOR DATE: SHEET I 'OF 2 WELL PAD 'Z' WELL N° Z- 12 AS-IUILT LOCATED IN PROTRACTED SECT. 19 , T. II N. , R. 12 E., ULM. SURVEYED FOR : · 'T.~D~D ALASKA I~:~UC'TiOFJ CO. PREPARED BY : KUUKPIK - TECHNICAL SERV. INC. PRUDHOE lAY OFFICE DATE : NOV. ZO,BS DRAWN BY: IT. CHKD. I¥: R.H. NW CORN OF SECT. 19 NORTH LINE OF SECTION 19 · · · · · · · · · · · · SUM P · · · · · · · · · · 1786' SUMP l NORTH SHEET 2 OF 2 WELL PAD *Z' WELL W° Z-12 Al-BUILT LOCATED IN D~C'I: I!, T. I l., I. I! L, U. If. DURVEYED POR : STANDARD ~A~ ~~ ¢O PREPARED DY : KUUKPIK - TECHNICAL SERV. INC. PRUDHOE DAY OFFICE DATE: NOV. aO,el DRAWN BY: BT CHKD. ~: R.H. S4~DUAi24:[DRANOi3]Zi2_CLOSAP_SHORT. L!S;~ 6-SEP-1989 11-06 ....................... --- Closest App~omch'An~I-gsis '--- - ................ Dmte' 6-SEP-89 Time: 11'06~44 Semrch Radius= 200 COURSE LINE ?o? p~oposed ~eli' Z-12 [2t-30-!1-!~] Location = W-E S-N TVD(SBS) Top 599509.00 5959099.00 -92.00 Note~ Ali depths in ~eet Below '~ellg Bushing ~oses~ Appromch .DENT /PROPOSED~i /NEARBY~ CEOSES? TVD DEPART TVD DEPART DISTANCE Vertical intersection YPROPOSED~ ~'~AR~ ........... VERTiC~]~= TVD DEPART TVD ~~ ....... DISTANC~ A029'~i 78700" Z-8 A029-2179800 A029-2181400 c_ AO29=2i-83000- Z-i A029-2 i 84400 ..... Z=I 4 A029-2184900 0.4 ~00'.-I ~-0 28007u ~ 2200.3 0.0 2200.0 5.5 5994.7 2006.7 5941.8 2030.6 ~O0':-.O 070~ ......... ~'00-.'0 ~.~-6- Z-iS 1200.2 0.0 1200.0 3.0 O. O O. 0 O. 0 533. 317. 2~5. ? '0~. ,5' 103. Z-33A 3793. SUMMARY 78. I 3~4~.,. 9 124. & 54~. 9 Tli( ~tl t~hich comes closest to the proposed meli is: ................ -A029=2!-84-400 ........... Z~- 1-4' C'i-o s es t--~ p p r-o-m'c h- d'i s t re'nc e--= ........ 70:-6-- ,~ ee KiCK OFF ~o~ this run = 3200. 0 ~eet S45DUAi24' [DRANOI3]ZI2_CLOSAP_SHORT7. LIS;2 6-5EP-!989 11:07 .................................................... ---'-Closest Approach Anal~s~s--~- Date: 6-SEP-89 Time' 11'07:35 Sea~ch Radius= 200 7 DE~REE LEAD LINE Fo~ p~oposed ~eii' Z-I2 [21-30-11-!2] Page i Location = W-E S-N TVD(SBS) Top 599509.00 5959099.00 Note- All depths in Peet Belo~ ~ellg Bushing Closest Approach ' WELE--'I'DEN] 'TPROPOSED'~ ..................... ~NEAR~Y\ CLO~Eb-'T ~ TVD DEPART TVD DEPART DISTANCE ..... AO~-'~~O0 Ve?tical intersection ~'Pt~-~D\ /NEARBY~: .............. VERTICA~ TVD DEPART TVD DEPART DISTANCE Z-14 400.0 0.0 400.0 2.6 70.6 A029-2184900 ~5 1-~00T~ u.O -]200.~ 37~ I037-~ A029-2185900 Z-20 2700.5 0.0 2700.0 li.6 274.0 SUMMARY The well mhich comes closest to the p?oposed ~eli is' ,]81 A0~9-~I84400 Z-14 Closest app?oach distance = 70.6 ~eet ....... M, I C~-OFP-~o~--~h~ s-~'un ........ = .......... 3200:'0 ~' ~eet ! TOT/~L. AC rive 5~,~;'£t~ · to ~I ~ Itt i'OrAL ~qJRFAC6 yOt~n£: ,2,,q ~,bt Pu~P~ .es . T* ~ ,,~ ( I - BrandE Dual Tandem Shale Shake:: 1 - Demco 6-12" Cone Shale Desander 1 - Demco 416H w/16 cones & (1) Demco 48H w/16 cones (Desilter) 1 - Drilco Atmospheric Mud Degasser ~lb' H T~ FZO~, D£~o IZ 3 50 ~ TAFJ~C Z 5'0 DUaL I'~DEH 7(.., ?~T 1- 200 gpm Operating Capacity. Centrifuge 15 - Brandt MA5 Mud Mix Agitators 1 - 150 bbl. Trip Tank 1 - Pecording drilling f]"uid pit level indicator with both visual and audio warning devices at driller's console 1 - Drilling fluid fl~w 0 · °1s with readout at drlll%~., console MUD WEIGHT CALCULATIONS WELL Z-12 (21-30-11-12~ Mud Wt. (8-1/2" Hole): 9.6 ppg. P Sag River: P Sadlerochit: P Top Sadlerochit: 4040 psi. 4065 psi. at 8800' TVDSS 4060 psi. OB Sag River: OB Top Sadlerochit: Current GOC: 210 psi. 279 psi. NA 9-5/8" Casing Pt. Top Sag River Top Sadlerochit 8685' TVDBKB 8695' TVDBKB 8877' TVDBKB Cement Calculations 13-3/8" CASING Measured Depth: 2652' Basis: 2 X Annular volume Total Cement Vol: 3684. (cu ft) Lead Slurry Vol: 3219 (cu ft) Tail Slurry Vol: 465 (cu ft) 9-5/8"CASING Measured Depth: 10866' Basis: 90% Annular Volume to 13-3/8" + 50 cu ft Total 'Cement Vol: 2365 (cuft) Lead Slurry Vol: 1445 (cuft) Tail Slurry Vol: 920(cu ft) 5-1/2" LINER Measured Depth: 11619' (Shoe) Basis: 1.5 X Annular volume to 9-5/8" shoe + 150 cu ft Total Cement Vol: 462 (cu ft) SAL: 9-7-89 CHECK LIST FOR NEW WELL PERMITS ITEM APPROVE DATE (2 thru 8) (8) (3) mdmin ~ ~//F/~7 (9 thru13)- (i0 and 13) casg (14 thru 22) (5) BOrE (23 thru 28) Company 2. Is well to be located in a defined pool ............................. ~ . 3. Is web] located proper distance from property line .................. ~_ 4. Is we~,[.~located proper distance from other wells ................ ' ... 5. Is suffiCient undediCated acreage available in this pool ............ ~__ 6. Is well to be deviated and is wellbore plat included ................ 7. Is operator the only affected party ................................. 8. Can permit be approved before fifteen-day wait ...................... e 10. 1i. 12. 13. 14. 15. 1. Is the permit fee attached .......................................... 16. 17. 18. 19. 20. 21. 22. Does operator have a bond in force .................................. · Is a conservation order needed ...................................... · Is administrative approval needed ................................... Is the lease number appropriate ................................... ... Does the well have a unique name and number .......................... Is conductor string provided ........ ~ ............................... Will surface casing protect all zones reasonably expected to serve as an underground source of drinking water ..................... Is enough cement used to circulate on conductor and surface ......... Will cement tie in surface and intermediate or production strings ... Will cement cover all known productive horizons ..................... Will all casing give adequate safety in collapse, tension and burst.. Is this well to be-kicked off from an existing wellbore ............. Is old wellbore abandonment procedure included on 10-403 ............ Is adequate wellbore separation proposed ............................ Is a diverter system required ....................................... Is the drilling fluid program schematic and list of equipment adequate.-~-~ Are necessary diagrams and descriptions of diverter and BOPE attached.~ Does BOPE have sufficient pressure rating - Test to ~~... psig .. Does the choke manifold comply w/API RP-53 (May 84) .................. Is the presence of H2S gas probable ................................. Lease & Well No. /~0/-- ~F~,,7 z'/~'3 : ~-- ! ~ YES NO ' REMARKS 23. 24. 25. 26. 27. 28. ,, ,vM · ('2'9' thrd Jl ) -' (6) Add: Geology: EngSn~, Frin~: DWJ P.PC rev: 01/30/89 6.011 For 29. 30. 31. 9xp~oratory and Stratigraphic wells: ~re data presented on potential overpressure zones? ................. Are seismic analysis data presented on shallow gas zones ............ If an offshore loc., are survey results of seabed conditions presented 32. Additional requirements ............................................. INITI~" GEO. UNIT ON/OFF POOL CLASS STATUS AREA NO. SHORE . Additional Remarks: ~-/z_ ~Z 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 APPENDIXi ,. No special 'effort has been made to chronologically organize this category of information. Tape Subfile 2 is type: LIS TAPE HEADER PRUDHOE BAY UNIT CASED HOLE WIRELINE LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: 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 Z- 12 (21-30-11-12) 500292197700 BP EXPLORATION (ALASKA) INC. ATLAS WIRELINE SERVICES 15-JUL-94 4031.03 K. RICHARDS R. MAYS 19 liN 12E 981 3494 91.74 91.74 54.22 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING CURVE SHIFT DATA - ALL PASSES TO STANDARD (MEASURED DEPTH) BASELINE CURVE FOR SHIFTS PBU TOOL CODE: PBU CURVE CODE: RUN NUMBER: PASS NUMBER: DATE LOGGED: LOGGING COMPANY: OPEN HOLE CASING DRILLERS CASING BIT SIZE (IN) SIZE (IN) DEPTH (FT) WEIGHT (LB/FT) 13.375 2658.0 68.00 9.625 10767.0 47.00 5.500 11458.0 17.00 3.500 10379.0 9.20 BASELINE DEPTH 10772.0 10775.5 10777.0 10824.5 10862.0 10863.0 10885.0 10885.5 10897.5 10899.0 10901.0 10902.5 GRCH 10776.5 10780.0 10781.0 10828.5 10866.5 10867.5 10890.0 10890.5 10903.0 10904.5 10905.0 10906.5 BCS GR 2 1 11-OCT-89 ATLAS WIRELINE SERVICES EQUIVALENT UNSHIFTED DEPTH ......... 10903.0 10904.0 10905.0 10924.5 10934.0 10935.5 10942.0 10944.0 10953.0 10972.0 10973.0 10979.0 10980.0 10985.5 11008.5 11010.5 11024.5 11028.5 11029.0 11032.5 11033.5 11034.5 11035.5 11051.5 11059.0 11067.5 11097.0 11104.0 11106.0 11134.0 11144.5 11152.5 11162.0 11169.0 11203.0 11204.0 11205.0 11208.5 11209.0 11214.5 11215.0 11215.5 11218.5 11219.5 11220.0 11226.5 11227.0 11228.0 11233.0 11274.5 11276.5 11277.5 11284.0 11285.5 11286.5 11287.5 11296.5 11297.5 11300.0 11300.5 10907.5 10908.5 10909.0 10928.5 10937.5 10939.0 10945.0 10947.0 10957.0 10976.0 10976.5 10982.5 10983.0 10988.5 11012.0 11014.0 11026.5 11030.5 11031.5 11035.0 11035.5 11036.5 11037.0 11053.0 11060.0 11068.0 11097.5 11105.0 11107.0 11134.5 11145.0 11153.5 11163.0 11169.5 11203.5 11204.0 11204.5 11208.0 11209.0 11214.5 11215.0 11215.5 11218.5 11219.0 11219.5 11226.5 11227.0 11227.5 11232.5 11275.0 11277.0 11277.5 11284.0 11286.5 11287.5 11288.0 11297.0 11297.5 11300.0 11300.5 PDK-100/GR Log. LOG TIED INTO BHC ACOUSTILOG RUN 29-OCT-89. LOGGING PROGRAM ORGANIZATION: 1. WELL SHUT-IN. 2. LOGGED 3 PASSES. A DIFFUSION CORRECTED SGMA CURVE IS INCLUDED FOR EACH PASS. THECURVE IS NAMED SGNT AND WAS CORRECTED WITH THE FOLLOWING PARAMETERS: BOREHOLE SIZE = 8" CASING SIZE = 7" SALINITY = 0 PPM A PDK POROSITY CURVE (PHI) WAS ALSO CREATED FOR ALL THREE PASSES. SHIFT PROCEDURE AS FOLLOWS: 1. FIRST PASS GAMMA RAY DEPTH MATCHED TO PREVIOUS OPEN HOLE GAMMA RAY. 2. FIRST'PASS SGMA DEPTH MATCHED TO "SHIFTED" FIRST PASS GAMMA RAY. 3. ALL SUBSEQUENT GAMMA RAY PASSES DEPTH MATCHED TO "SHIFTED" FIRST PASS GAMMA RAY. 4. ALL SUBSEQUENT SGMA (PDK) PASSES DEPTH MATCHED TO "SHIFTED" FIRST PASS SGMA. PRODUCTION RATES (16-JUN-94): GFR = 2.10 MBPD OIL = 1.67 MBOPD FORM. GAS = 10.79 MMSCFD WATER CUT = 20.60 % CHOKE = 55 MAXIMUM DEVIATION = 49 DEGREES @ 3200'. ?MATCH IA. OUT FILE HEADER FILE NUMBER: 1 EDITED CURVES Depth shifted and clipped curves for each pass in separate files. PASS NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE GRCH PDK $ CURVE SHIFT DATA - PASS TO pASS BASELINE CURVE FOR SHIFTS PBU CURVE CODE: GRCH PASS NUMBER: 1 START DEPTH 10713.0 10725.0 BASELINE DEPTH SGMA 10726.0 10729.0 10777.5 10783.0 10815.0 10818.5 10820.5 10824.0 10882.0 10887.5 10894.0 10899.5 10958.5 10962.5 10995.5 10999.0 11019.0 11021.0 11030.5 11032.5 11043.5 11043.5 11046.0 11046.0 11046.5 11047.0 11049.0 11049.5 11050.0 11050.0 11050.5 11050.5 11065.0 11066.0 11069.0 11070.0 11070.0 11070.5 11079.0 11079.5 11079.5 11080.5 11097.0 11098.0 11100.0 11099.5 11102.5 11102.0 11105.5 11106.0 11113.0 11113.5 11113.5 11114.5 11145.0 11146.0 11146.0 11146.5 11146.5 11147.0 11147.5 11147.5 11148.0 11148.0 11153.0 11153.5 11162.5 11163.0 11163.0 11164.0 11171.5 11172.5 11180.5 11180.5 11184.0 11184.0 11184.5 11185.0 STOP DEPTH 11306.0 11318.0 (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH 11185.0 11186.0 11192.0 11193.0 11196.0 11196.5 11200.0 11201.0 11202.0 11202.5 11214.0 11214.5 11217.5 11218.5 11219.0 11239.0 11262.0 11268.0 11271.0 11271.5 11272.5 11273.5 11275.0 11275.5 11283.0 11284.0 11285.5 11286.5 11304.5 11305.0 11307.0 11308.0 11308.5 11320.0 $ R~S: 11185.5 11186.0 11192.0 11192.5 11195.5 11196.5 11200.0 11200.5 11201.5 11202.5 11214.0 11215.0 11218.0 11218.5 11219.0 11239.5 11262.5 11270.5 11272.5 11273.0 11273.5 11274.0 11275.5 11276.5 11284.0 11284.5 11286.0 11286.5 11304.5 11305.5 11307.5 11308.0 11308.5 11320.0 PASS 1. ALL PDK CURVES WERE SHIFTED WITH SGMA. GRCH WAS DEPTH MATCHED TO OPEN HOLE GAMMA RAY. / ? ?MATCH1B . OUT $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64 ) ONE DEPTH PER FRAME Tape depth ID: F 16 Curves: API API API API Log Crv Crv Name Tool Code Samples Units Size Length Typ Typ Cls Mod 1 GRCH PDK 68 1 GAPI 2 BIF PDK 68 1 3 BKL PDK 68 1 CPS 4 BKS PDK 68 1 CPS 5 CSLS PDK 68 1 CU 6 LS PDK 68 1 CPS 7 MSD PDK 68 1 CU 8 RATO PDK 68 1 9 RBOR PDK 68 1 10 RICS PDK 68 1 11 RIN PDK 68 1 12 SGMA PDK 68 1 CU 13 SGMB PDK 68 I CU 14 SS PDK 68 I CPS 15 SGNT PDK 68 i CU 16 PHI PDK 68 i PU-S 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 64 * DATA RECORD (TYPE# 0) 958 BYTES * Total Data Records: 89 Tape File Start Depth = 11320.000000 Tape File End Depth = 10700.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 21098 datums Tape Subfile: 2 359 records... Minimum record length: 62 bytes Maximum record length: 958 bytes Tape Subfile 3 is type: LIS FILE HEADER FILE NUMBER: 2 EDITED CURVES Depth shifted and clipped curves for each pass in separate files. PASS NUMBER: 2 DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE GRCH PDK $ CURVE SHIFT DATA - PASS TO PASS BASELINE CURVE FOR SHIFTS PBU CURVE CODE: GRCH PASS NUMBER: 1 BASELINE DEPTH GRCH 10767.0 10769.0 10772.5 10772.5 10776.0 10776.5 10779.0 10781.0 10783.5 10782.0 10783.5 10784.5 10785.5 10788.5 10791.0 10800.0 10803.0 10807.0 10810.0 10808.5 10810.0 10810.5 10813.5 10814.5 10824.0 10827.0 10829.5 10831.5 10831.0 10835.0 10836.0 10837.0 10840.0 10843.0 10840.5 10841.5 10842.5 10846.0 10849.0 10860.0 10860.5 10868.5 10879.0 10880.0 10883.0 10887.0 10887.5 10891.5 START DEPTH 10724.0 10736.0 STOP DEPTH 11306.0 11318.0 (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH SGMA 10771.5 10781.0 10784.0 10787.0 10787.5 10788.0 10789.0 10803.0 10806.0 10810.5 10812.0 10812.5 10813.5 10816.5 10817.0 10833.5 10838.5 10839.5 10840.0 10843.5 10844.0 10845.0 10863.5 10864.0 10873.0 10883.5 10884.0 10889.0 10890.5 10899.0 10899.5 10901.0 10902.0 10907.0 10908.0 10910.0 10910.5 10911.5 10913.0 10914.0 10916.5 10917.0 10919.5 10921.5 10924.0 10928.5 10931.0 10935.0 10937.0 10938.0 10938.5 10939.0 10941.5 10943.5 10945.0 10947.0 10947.5 10952.5 10953.5 10956.0 10960.0 10962.5 10963.0 10964.5 10967.0 10968.0 10973.0 10975.5 10976.5 10977.5 10980.5 10981.0 10981.5 10984.5 10986.0 10987.0 10988.0 10988.5 10997.0 10998.0 11010.0 11011.0 11013.5 11016.0 11025.5 11030.0 11032.0 10903.5 10904.0 10904.5 10905.0 10913.0 10914.0 10916.5 10917.0 10927.0 10933.0 10937.0 10944.0 10947.5 10959.5 10963.5 10965.5 10966.0 10968.0 10970.5 10971.0 10976.0 10978.0 10979.0 10979.5 10983.0 10984.0 10987.0 10988.0 10989.0 10989.5 10990.0 11026.5 11031.0 10893.0 10895.0 10911.5 10912.0 10914.5 10915.0 10920.0 10921.0 10923.5 10926.0 10928.5 10932.0 10940.5 10941.0 10941.5 10942.5 10946.5 10950.0 10951.0 10956.0 10956.5 10983.5 10984.0 10999.5 11000.0 11012.0 11012.5 11015.0 11017.0 11033.0 11033.0 11035.0 11035.5 11036.5 11038.0 11039.0 11042.0 11045.5 11046.0 11046.5 11049.0 11049.5 11050.5 11052.5 11053.5 11062.5 11067.0 11069.0 11070.5 11071.0 11071.5 11072.5 11073.5 11074.0 11077.5 11078.5 11083.0 11086.5 11087.0 11089.5 11092.0 11092.5 11096.5 11098.0 11098.5 11099.0 11104.5 11105.0 11111.5 11116.0 11117.5 11118.0 11122.5 11131.5 11134.0 11135.0 11135.5 11136.5 11145.0 11146.0 11150.0 11151.5 11152.0 11162.5 11163.0 11167.5 11168.0 11175.0 11181.5 11188.5 11035.5 11036.0 11036.5 11038.0 11039.5 11049.5 11050.5 11051.5 11054.0 11063.0 11071.0 11073.0 11077.0 11083.0 11086.0 11089.0 11092.0 11096.0 11096.5 11131.0 11134.0 11135.5 11136.0 11151.0 11152.0 11163.0 11033.5 11036.0 11036.5 11038.0 11041.0 11044.5 11045.0 11045.5 11048.0 11049.0 11052.0 11052.5 11066.5 11068.5 11070.5 11071.5 11072.0 11073.0 11078.5 11087.0 11091.5 11096.0 11096.5 11103.0 11104.5 11111.0 11116.0 11117.5 11118.5 11123.0 11134.0 11134.5 11144.5 11145.0 11149.5 11162.0 11163.0 11167.0 11168.0 11175.0 11180.5 11187.5 11189.5 11190.5 11191.0 11200.0 11200.5 11201.0 11203.0 11204.0 11204.5 11209.0 11215.0 11216.5 11217.5 11218.0 11229.5 11230.0 11232.0 11260.0 11263.0 11274.0 11283.5 11284.0 11285.0 11286.0 11286.5 11287.0 11287.5 11288.0 11293.0 11293.5 11294.0 11300.5 113 113 113 113 $ REMARKS: 11188.0 11190.0 11189.0 11190.0 11199.5 11199.5 11200.5 11202.5 11203.0 11203.0 11204.0 11208.0 11214.5 11216.0 11216.5 11217.5 11229.0 11230.0 11232.0 11260.5 11263.5 11274.0 11283.0 11284.0 11284.5 11285.0 11285.5 11285.5 11286.0 11286.0 11287.0 11292.0 11293.0 11293.5 11301.0 05.0 11304.0 05.5 11305.0 08.0 11308.5 11307.5 08.5 11309.0 11308.0 PASS 2. ALL PDK CURVES WERE SHIFTED WITH SGMA. / ? ?MATCH2A. OUT / ? ?MATCH2B. OUT $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * 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 GRCH PDK 68 1 GAPI 4 2 BIF PDK 68 1 4 3 BKL PDK 68 1 CPS 4 4 BKS PDK 68 1 CPS 4 5 CSLS PDK 68 1 CU 4 6 LS PDK 68 1 CPS 4 7 MSD PDK 68 1 CU 4 8 RATO PDK 68 1 4 9 RBOR PDK 68 1 4 10 RICS PDK 68 1 4 11 RIN PDK 68 1 4 12 SGMA PDK 68 1 CU 4 13 SGMB PDK 68 1 CU 4 14 SS PDK 68 1 CPS 4 15 SGNT PDK 68 1 CU 4 16 PHI PDK 68 1 PU-S 4 4 4 4 4 64 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 4 00 201 24 1 00 201 24 1 00 201 24 1 00 201 24 1 00 201 24 1 * DATA RECORD (TYPE# 0) 958 BYTES * Total Data Records: 89 Tape File Start Depth = 11320.000000 Tape File End Depth = 10700.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 21098 datums Tape Subfile: 3 316 records... Minimum record length: Maximum record length: 62 bytes 958 bytes Tape Subfile 4 is type: LIS FILE HEADER FILE NUMBER: 3 EDITED CURVES Depth shifted and clipped curves for each pass in separate files. PASS NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE GRCH PDK $ CURVE SHIFT DATA - PASS TO PASS BASELINE CURVE FOR SHIFTS PBU CURVE CODE: GRCH PASS NUMBER: 1 START DEPTH 10715.0 10727.0 BASELINE DEPTH GRCH 10710.5 10712.5 10711.0 10713.0 10711.5 10714.0 10716.5 10719.0 10717.0 10726.5 10765.0 10768.0 10771.0 10768.5 10771.5 10769.0 10772.5 10774.5 10778.0 10782.5 10783.5 10784.0 10788.0 10784.5 10785.0 10786.0 10790.0 10787.0 10790.5 10788.5 10792.0 10799.0 10800.0 10801.0. 10802.0 10802.5 10807.0 10811.0 10809.0 10813.0 10810.0 10813.5 10810.5 10820.5 10821.5 10825.0 10822.0 10826.0 10822.5 10824.0 10828.0 10845.0 10862.0 10867.0 10867.5 10872.~5 10869.0 STOP DEPTH 11306.0 11318.0 (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH SGMA 10721.5 10731.0 10769.0 10772.5 10774.0 10787.5 10788.0 10788.5 10789.0 10802.5 10803.0 10804.0 10804.5 10805.0 10812.0 10813.0 10814.0 10824.0 10825.0 10826.0 10848.5 10873.5 10874.0 10874.5 10877.5 10878.5 10880.0 10887.5 10890.5 10891.0 10897.0 10898.0 10898.5 10899.5 10901.0 10904.5 10905.0 10906.5 10908.0 10911.0 10911.5 10912.0 10913.5 10914.0 10915.5 10916.5 10917.0 10918.0 10939.0 10940.0 10949.5 10953.0 10953.5 10954.0 10954.5 10955.0 10955.5 10956.5 10964.0 10973.5 10975.5 10976.5 10977.5 10983.5 10984.5 10985.0 10985.5 10987.5 10988.5 10996.5 10998.0 11003.0 11003.5 11004.5 11006.5 11007.0 11007.5 11009.0 11009.5 11010.0 11011.0 11012.0 10883.0 10884.0 1O885.O 10892.5 10903.0 10904.0 10904.5 10908.0 10909.0 10910.5 10914.5 10915.5 10920.5 10921.0 10952.5 10957.5 10959.5 10967.5 10977.0 10978.5 10979.5 10980.0 10987.0 10988.0 10988.5 11000.0 11001.5 11005.0 10878.5 10879.5 10895.5 10896.5 10902.5 10903.0 10913.0 10915.5 10918.0 10919.0 10920.5 10921.0 10943.5 10944.0 10957.0 10957.5 10958.0 10959.0 10959.5 10960.0 10987.0 10987.5 10988.5 10991.0 10991.5 11006.5 11007.0 11009.0 11009.5 11010.0 11011.5 11012.5 11013.0 11013.5 11014.0 11013.0 11020.0 11022.0 11025.0 11027.5 11030.5 11033.5 11034.5 11035.5 11036.5 11038.0 11039.0 11040.0 11040.5 11042.5 11048.5 11049.0 11050.0 11056.5 11058.5 11062.0 11067.0 11081.0 11081.5 11096.0 11097.0 11098.5 11105.0 11105.5 11111.0 11111.5 11116.5 11134.5 11135.5 11136.5 11138.0 11146.0 11153.0 11153.5 11162.5 11164.0 11166.5 11169.0 11170.0 11172.5 11174.5 11179.5 11180.5 11183.0 11183.5 11187.0 11190.5 11191.0 11191.5 11199.5 11200.0 11200.5 11204.0 11204.5 11206.5 11036.0 11039.5 11040.0 11041.0 11042.0 11051.5 11059.5 11067.5 11136.0 11136.5 11153.0 11154.0 11163.0 11172.5 11174.5 11190.5 11199.0 11200.0 11200.5 11203.5 11204.5 11015.0 11021.5 11023.5 11027.0 11029.5 11032.0 11035.0 11035.5 11036.5 11037.0 11038.5 11042.0 11048.0 11049.0 11056.5 11062.5 11081.5 11082.5 11097.0 11097.5 11098.0 11104.5 11105.5 11111.0 11112.0 11117.5 11134.5 11138.0 11145.0 11153.0 11164.0 11167.0 11169.5 11170.0 11179.5 11180.0 11182.5 11183.5 11187.0 11190.0 11190.5 11199.0 11200.0 11203.5 11204.5 11206.5 11208.0 11208.5 11214.5 11215.0 11218.5 11219.0 11231.0 11231.5 11262.5 11263.0 11274.0 11275.0 11275.5 11276.0 11278.0 11279.0 11281.0 11281.5 11283.5 11285.0 11286.0 11286.5 11287.0 11288.0 11288.5 11292.5 11293.0 11304.5 11305.5 11306.0 11306.5 11308.0 11308.5 $ REMARKS: 11208.0 11208.0 11214.0 11215.0 11218.0 11219.0 11231.0 11232.0 11263.0 11264.0 11275.0 11275.5 11275.5 11276.0 11277.0 11278.5 11279.0 11281.0 11282.0 11284.0 11286.0 11286.5 11286.0 11287.0 11287.5 11288.5 11292.5 11293.5 11304.5 11305.0 11305.5 11306.5 11308.5 11308.0 11309.0 11308.5 PASS 3. ALL PDK CURVES WERE SHIFTED WITH SGMA. /??MATCH3A. OUT / ? ?MATCH3 B. OUT $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64 ) ONE DEPTH PER FRAME Tape depth ID: F 16 Curves: Name Tool Code Samples Units Size API API API API Log Crv Crv Length Typ Typ Cls Mod 1 GRCH PDK 68 1 GAPI 4 2 BIF PDK 68 1 4 3 BKL PDK 68 1 CPS 4 4 BKS PDK 68 1 CPS 4 5 CSLS PDK 68 1 CU 4 6 LS PDK 68 1 CPS 4 7 MSD PDK 68 1 CU 4 8 RATO PDK 68 1 4 9 RBOR PDK 68 1 4 10 RICS PDK 68 1 4 11 RIN PDK 68 1 4 12 SGMA PDK 68 1 CU 4 13 SGMB PDK 68 1 CU 4 14 SS PDK 68 1 CPS 4 15 SGNT PDK 68 1 CU 4 16 PHI PDK 68 1 PU-S 4 * DATA RECORD (TYPE# 0) Total Data Records: 89 958 BYTES * 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 4 00 201 24 64 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Tape File Start Depth = 11320.000000 Tape File End Depth = 10700.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 42196 datums Tape Subfile: 4 313 records... Minimum record length: 62 bytes Maximum record length: 958 bytes Tape Subfile 5 is type: LIS FILE HEADER FILE NUMBER: 4 AVERAGED CURVES Compensated Neutron: Arithmetic average of edited passes for all curves. Pulsed Neutron: Unaveraged edited Pass 1 gamma ray and background counts; arithmetic average of edited static baseline passes for all other curves. DEPTH INCREMENT: 0.5000 PASSES INCLUDED IN AVERAGE PBU TOOL CODE PASS NUMBERS PDK GRCH $ REMARKS: 1, 2, 3 1 AVERAGED PASS. PASSES 1, 2, & 3 WERE AVERAGED. $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * 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 GRCH PNAV 68 1 GAPI 4 2 BKL PNAV 68 1 CPS 4 3 BKS PNAV 68 1 CPS 4 4 BIF PNAV 68 1 4 5 CSLS PNAV 68 1 CU 4 6 LS PNAV 68 1 CPS 4 7 MSD PNAV 68 1 CU 4 8 RATO PNAV 68 1 4 9 RBOR PNAV 68 1 4 10 RICS PNAV 68 1 4 11 RIN PNAV 68 1 4 12 SGMA PNAV 68 1 CU 4 13 SGMB PNAV 68 1 CU 4 14 SS PNAV 68 1 CPS 4 15 SGNT PNAV 68 1 CU 4 16 PHI PNAV 68 1 PU-S 4 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 4 71 784 90 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 64 * DATA RECORD (TYPE# 0) 958 BYTES * Total Data Records: 89 Tape File Start Depth = 11320.000000 Tape File End Depth = 10700.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 42196 datums Tape Subfile: 5 111 records... Minimum record length: 62 bytes Maximum record length: 958 bytes Tape Subfile 6 is type: LIS FILE HEADER FILE NUMBER: 5 RAW CURVES Curves and log header data for each run in separate files; raw background pass in last file. PASS NUMBER: 1 DEPTH INCREMENT: .2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10711.5 PDK 10723.5 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): DEPTH CONTROL USED (YES/NO): TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE PDK PDK-100 SBAR SINKER BAR $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): STOP DEPTH 11319.5 11331.5 25-JUN-94 FSYS REV. J001 VER. 1.1 1903 25-JUN-94 11458.0 11331.0 10740.0 11318.0 1200.0 YES TOOL NUMBER 2725XA .000 11458.0 .0 BOREHOLE CONDITIONS FLUID TYPE: FLUID DENSITY (LB/G): SURFACE TEMPERATURE (DEGF): BOTTOM HOLE TEMPERATURE (DEGF): FLUID SALINITY (PPM): FLUID LEVEL (FT): FLUID RATE AT WELLHEAD (BPM): WATER CUTS (PCT): GAS/OIL RATIO: CHOKE (DEG): PRODUCED FLUIDS .00 .0 .0 0 .0 .000 .000 .000 .0 NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY'. HOLE CORRECTION (IN): .00 .000 BLUELINE COUNT RATE NORMALIZATION IN OIL ZONE TOP NORMALIZING WINDOW (FT): BASE NORMALIZING WINDOW (FT): .0 .0 BLUELINE COUNT RATE SCALES SET BY FIELD ENGINEER FAR COUNT RATE LOW SCALE (CPS): 0 FAR COUNT RATE HIGH SCALE (CPS): 4300 NEAR COUNT RATE LOW SCALE (CPS): 0 NEAR COUNT RATE HIGH SCALE (CPS): 78000 TOOL STANDOFF (IN): .0 REMARKS: PASS 1. $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 24 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR PDK 68 1 GAPI 4 2 BIF PDK 68 1 4 3 BKL PDK 68 1 CPS 4 4 BKS PDK 68 1 CPS 4 5 CCL PDK 68 1 4 6 CSLS PDK 68 1 CU 4 7 CSS PDK 68 1 CPS 4 8 G1 PDK 68 1 CPS 4 9 G2 PDK 68 1 CPS 4 10 ISS PDK 68 1 CPS 4 11 LS PDK 68 1 CPS 4 12 MON PDK 68 1 CPS 4 13 MSD PDK 68 1 CU 4 14 RATO PDK 68 1 4 15 RBOR PDK 68 1 4 16 RICS PDK 68 1 4 17 RIN PDK 68 1 4 18 SGMA PDK 68 1 CU 4 19 SGMB PDK 68 1 CU 4 20 SPD PDK 68 1 F/MN 4 21 SS PDK 68 1 CPS 4 22 TEN PDK 68 1 LB 4 23 SGNT PDK 68 1 CU 4 24 PHI PDK 68 1 PU-S 4 4 06 511 09 4 00 201 24 4 39 705 61 4 74 169 61 4 92 630 79 4 00 201 24 4 00 201 24 4 35 975 96 4 36 631 32 4 71 162 89 4 71 162 89 4 32 125 68 4 00 201 24 4 23 260 40 4 23 260 40 4 23 260 40 4 23 260 40 4 96 761 61 4 00 201 24 4 52 386 28 4 05 626 89 4 17 922 28 4 00 201 24 4 00 201 24 0 1 6 6 6 1 1 1 1 6 6 0 1 0 0 0 0 6 1 5 6 5 1 1 96 * DATA RECORD (TYPE# 0) 1006 BYTES * Total Data Records: 249 Tape File Start Depth = 11331.500000 Tape File End Depth = 10711.500000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 104222 datums Tape Subfile: 6 323 records... Minimum record length: 62 bytes Maximum record length: 1006 bytes Tape Subfile 7 is type: LIS FILE HEADER FILE NUMBER: 6 RAW CURVES Curves and log header data for each run in separate files; raw background pass in last file. PASS NUMBER: 2 DEPTH INCREMENT: .2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10721.0 PDK 10733.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): DEPTH CONTROL USED (YES/NO): TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE PDK PDK-100 SBAR SINKER BAR $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): BOREHOLE CONDITIONS FLUID TYPE: FLUID DENSITY (LB/G): SURFACE TEMPERATURE (DEGF): BOTTOM HOLE TEMPERATURE (DEGF): FLUID SALINITY (PPM): FLUID LEVEL (FT): FLUID RATE AT WELLHEAD (BPM): WATER CUTS (PCT): GAS/OIL RATIO: CHOKE (DEG): NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): STOP DEPTH 11320.0 11332.0 25-JUN-94 FSYS REV. J001 VER. 1.1 1955 25-JUN-94 11458.0 11331.0 10740.0 11318.0 1200.0 YES TOOL NUMBER 2725XA .000 11458.0 .0 PRODUCED FLUIDS .00 .0 .0 0 .0 .000 .000 .000 .0 .00 .000 BLUELINE COUNT RATE NORMALIZATION IN OIL ZONE TOP NORMALIZING WINDOW (FT): BASE NORMALIZING WINDOW (FT): .0 .0 BLUELINE COUNT RATE SCALES SET BY FIELD ENGINEER FAR COUNT RATE LOW SCALE (CPS): 0 FAR COUNT RATE HIGH SCALE (CPS): 4300 NEAR COUNT RATE LOW SCALE (CPS): 0 NEAR COUNT RATE HIGH SCALE (CPS): 78000 TOOL STANDOFF (IN): .0 REMARKS: PASS 2. $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 24 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR PDK 68 1 GAPI 4 2 BIF PDK 68 1 4 3 BKL PDK 68 1 CPS 4 4 BKS PDK 68 1 CPS 4 5 CCL PDK 68 1 4 6 CSLS PDK 68 1 CU 4 7 CSS PDK 68 1 CPS 4 8 G1 PDK 68 1 CPS 4 9 G2 PDK 68 1 CPS 4 10 ISS PDK 68 1 CPS 4 11 LS PDK 68 1 CPS 4 12 MON PDK 68 1 CPS 4 13 MSD PDK 68 1 CU 4 14 RATO PDK 68 1 4 15 RBOR PDK 68 1 4 16 RICS PDK 68 1 4 17 RIN PDK 68 1 4 18 SGMA PDK 68 1 CU 4 19 SGMB PDK 68 1 CU 4 20 SPD PDK 68 1 F/MN 4 21 SS PDK 68 1 CPS 4 22 TEN PDK 68 1 LB 4 23 SGNT PDK 68 1 CU 4 24 PHI PDK 68 1 PU-S 4 4 06 511 09 4 00 201 24 4 39 705 61 4 74 169 61 4 92 630 79 4 00 201 24 4 00 201 24 4 35 975 96 4 36 631 32 4 71 162 89 4 71 162 89 4 32 125 68 4 00 201 24 4 23 260 40 4 23 260 40 4 23 260 40 4 23 260 40 4 96 761 61 4 00 201 24 4 52 386 28 4 05 626 89 4 17 922 28 4 00 201 24 4 00 201 24 0 1 6 6 6 1 1 1 1 6 6 0 1 0 0 0 0 6 1 5 6 5 1 1 96 * DATA RECORD (TYPE# 0) Total Data Records: 245 1006 BYTES * Tape File Start Depth = 11332.000000 Tape File End Depth = 10721.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 103322 datums Tape Subfile: 7 319 records... Minimum record length: 62 bytes Maximum record length: 1006 bytes Tape Subfile 8 is type: LIS FILE HEADER FILE NUMBER: 7 RAW CURVES Curves and log header data for each run in separate files; raw background pass in last file. PASS NUMBER: 3 DEPTH INCREMENT: .2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10714.0 PDK 10726.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): DEPTH CONTROL USED (YES/NO): TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE PDK PDK-100 SBAR SINKER BAR $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): STOP DEPTH 11320.0 11332.0 25-JUN-94 FSYS REV. J001 VER. 1.1 2053 25-JUN-94 11458.0 11331.0 10740.0 11318.0 1200.0 YES TOOL NUMBER 2725XA .0OO 11458.0 .0 BOREHOLE CONDITIONS FLUID TYPE: FLUID DENSITY (LB/G): SURFACE TEMPERATURE (DEGF): BOTTOM HOLE TEMPERATURE (DEGF): FLUID SALINITY (PPM): FLUID LEVEL (FT): FLUID RATE AT WELLHEAD (BPM): WATER CUTS (PCT): GAS/OIL RATIO: CHOKE (DEG): PRODUCED FLUIDS .00 .0 .0 0 .0 .000 .000 .000 .0 NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX'. MATRIX DENSITY: HOLE CORRECTION (IN): .00 .000 BLUELINE COUNT RATE NORMALIZATION IN OIL ZONE TOP NORMALIZING WINDOW (FT): BASE NORMALIZING WINDOW (FT): .0 .0 BLUELINE COUNT RATE SCALES SET BY FIELD ENGINEER FAR COUNT RATE LOW SCALE (CPS): 0 FAR COUNT RATE HIGH SCALE (CPS): 4300 NEAR COUNT RATE LOW SCALE (CPS): 0 NEAR COUNT RATE HIGH SCALE (CPS): 78000 TOOL STANDOFF (IN): .0 REMARKS: PASS 3. $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 24 Curves:' Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR PDK 68 1 GAPI 4 2 BIF PDK 68 1 4 3 BKL PDK 68 1 CPS 4 4 BKS PDK 68 1 CPS 4 5 CCL PDK 68 1 4 6 CSLS PDK 68 1 CU 4 7 CSS PDK 68 1 CPS 4 8 G1 PDK 68 1 CPS 4 9 G2 PDK 68 1 CPS 4 10 ISS PDK 68 1 CPS 4 11 LS PDK 68 1 CPS 4 12 MON PDK 68 1 CPS 4 13 MSD PDK 68 1 CU 4 14 RATO PDK 68 1 4 15 RBOR PDK 68 1 4 16 RICS PDK 68 1 4 17 RIN PDK 68 1 4 18 SGMA PDK 68 1 CU 4 19 SGMB PDK 68 1 CU 4 20 SPD PDK 68 1 F/MN 4 21 SS PDK 68 1 CPS 4 22 TEN PDK 68 1 LB 4 23 SGNT PDK 68 1 CU 4 24 PHI PDK 68 1 PU-S 4 4 06 511 09 4 00 201 24 4 39 705 61 4 74 169 61 4 92 630 79 4 00 201 24 4 00 201 24 4 35 975 96 4 36 631 32 4 71 162 89 4 71 162 89 4 32 125 68 4 00 201 24 4 23 260 40 4 23 260 40 4 23 260 40 4 23 260 40 4 96 761 61 4 00 201 24 4 52 386 28 4 05 626 89 4 17 922 28 4 00 201 24 4 00 201 24 0 1 6 6 6 1 1 1 1 6 6 0 1 0 0 0 0 6 1 5 6 5 1 1 96 * DATA RECORD (TYPE# 0) 1006 BYTES * Total Data Records: 248 sa~Xq 900I :g~BuaI p~osa~ ~nm~xe~ sa~Xq ~9 :q~BuaI p~osa~ ~nm~u~ · ''sp~oD~ ~ ~ :aI~qns s~n~ep 8~099I 89 :apoD daH :Xa~a~ns 6u~pooap apoo uo~uasaadaa ~ HHqI~fH~ H~I& 0000~E'0 = Bu~o~ds IaAa~ aI~& ad~ 000000'gIt0I = g~daG puH aI~ ad~ Tape Subfile 9 is type: LIS 94/ 7/15 01 **** REEL TRAILER **** 94/ 7/15 01 Tape Subfile: 9 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Fri 15 JLY 94 11:46a Elapsed execution time = 14.00 seconds. SYSTEM RETURN CODE = 0 Tape Subfile 2 is type: LIS TAPE HEADER PRUDHOE BAY UNIT CASED HOLE WIRELINE LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: 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 Z - 12 500292197700 BP EXPLORATION (ALASKA) INC. ATLAS WIRELINE SERVICES 04-NOV-93 4031.01 R. IORIO C. SEVCIK 19 liN 12E 981 3494 91.74 55.74 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING CURVE SHIFT DATA - ALL PASSES TO STANDARD (MEASURED DEPTH) BASELINE CURVE FOR SHIFTS OPEN HOLE CASING DRILLERS CASING BIT SIZE (IN) SIZE (IN) DEPTH (FT) WEIGHT (LB/FT) 13.375 2658.0 68.00 9.625 10767.0 47.00 5.500 11580.0 17.00 3.500 10480.0 9.20 EQUIVALENT UNSHIFTED DEPTH BASELINE DEPTH 10653.0 10732.5 10768.5 10777.0 10786.0 10787.5 10814.0 10820.0 10828.5 10830.5 10843.5 10859.5 10864.5 UNKNOWN GR PBU TOOL CODE: PBU CURVE CODE: RUN NUMBER: PASS NUMBER: DATE LOGGED: LOGGING COMPANY: GRCH 10653.0 10737.0 10773.0 10781.5 10790.5 10792.0 10819.0 10824.5 10832.5 10835.0 10849.5 10864.0 10869.0 10883.5 10894.0 10919.5 10958.5 10962.5 10964.5 10967.5 10996.0 11007.5 11021.0 11030.5 11044.0 11054.0 11061.5 11071.0 11076.5 11080.5 11085.0 11092.5 11109.5 11118.0 11127.0 11140.5 11158.0 11174.0 11180.5 11209.5 11214.0 11230.5 11259.0 11277.5 11284.5 11301.5 11312.5 11328.5 11367.0 $ REMARKS: 10888.5 10899.0 10924.0 10963.0 10968.0 10968.5 10971.0 10998.5 11010.5 11023.0 11032.5 11046.0 11055.5 11063.0 11072.5 11078.0 11081.5 11086.0 11093.5 11110.5 11119.0 11128.0 11140.5 11158.5 11175.0 11181.0 11209.5 11214.0 11230.5 11260.0 11277.5 11284.0 11301.0 11312.5 11329.0 11367.0 PDK-100/GR LOG TIED TO BHCS RUN 29-OCT-89. WELL SHUT-IN @ 08:00 HRS, 06-OCT-93. PRIOR TEST RATES (10-02-93): FLUIDS = 3.25 MBPD OIL = 2.08 MBOPD WATER = 1.17 MBWPD GAS = 7.14 MMSCFD GOR = 3439 SCF/STB (NO LIFT GAS) MFP = 310 PSIG @ 177 DEGF WC = 36% A BOREHOLE-DIFFUSION CORRECTED SGMA CURVE IS PRESENTED FOR EACH PASS. THE SGMA CURVE IS CORRECTED FOR AN 8" BOREHOLE, 7" CASING, & 0 ppm BOREHOLE FLUID SALINITY. THE CORRECTED CURVE IS CALLED "SGNT". SHIFT PROCEDURE AS FOLLOWS: 1) FIRST PASS GAMMA RAY DEPTH MATCHED TO OPEN HOLE GAMMA RAY. 2) FIRST PASS SGMA DEPTH MATCHED TO "SHIFTED" FIRST PASS GAMMA RAY. 3) ALL SUBSEQUENT GAMMA RAY PASSES DEPTH MATCHED TO "SHIFTED" FIRST PASS GAMMA RAY. 4) ALL SUBSEQUENT SGMA (PDK) PASSES DEPTH MATCHED TO "SHIFTED" FIRST PASS SGMA. / ? ?MATCH1. OUT $ FILE HEADER FILE NUMBER: 1 EDITED CURVES Depth shifted and clipped curves for each pass PASS NUMBER: 1 DEPTH INCREMENT: 0.5000 FILE SUMMARY PBU TOOL CODE GRCH PDK $ CURVE SHIFT DATA - PASS TO PASS BASELINE CURVE FOR SHIFTS PBU CURVE CODE: GRCH PASS NUMBER: 1 START DEPTH 10676.0 10693.0 BASELINE DEPTH SGMA 10653.0 10653.0 10732.5 10737.0 10768.5 10773.0 10777.5 10781.0 10782.0 10784.0 10786.0 10790.5 10787.5 10792.0 10815.0 10818.5 10820.0 10824.5 10828.5 10832.5 10830.5 10835.0 10843.5 10849.5 10859.5 10864.0 10864.5 10869.0 10883.5 10888.5 10893.5 10898.0 10898.5 10903.0 10919.5 10924.0 10936.0 10939.5 10958.5 10963.0 10965.0 10969.0 10967.5 10972.0 10996.0 10998.5 11007.5 11011.5 11021.5 11025.0 11030.5 11032.5 11034.5 11038.0 11036.5 11041.0 11054.0 11056.5 11061.5 11063.0 11071.0 11072.5 11076.5 11078.0 11080.5 11081.5 11085.0 11086.0 11092.5 11093.5 11109.5 11110.5 11118.0 11119.0 11127.0 11127.5 11140.5 11141.0 STOP DEPTH 11336.0 11348.0 (MEASURED DEPTH) in separate files. EQUIVALENT UNSHIFTED DEPTH 11158.0 11174.0 11180.5 11202.5 112O9.5 11214.0 11230.5 11259.0 11277.5 11284.5 11287.5 11302.0 11312.5 11329.0 11367.0 $ REMARKS: 11158.5 11175.0 11181.0 11202.0 11209.0 11214.0 11230.5 11260.0 11277.5 11284.0 11288.5 11302.0 11312.5 11328.0 11367.0 PASS 1. ALL PDK CURVES WERE SHIFTED WITH SGMA. GRCH WAS DEPTH MATCHED TO OPEN HOLE GAMMA RAY. / ? ?MATCH2. OUT $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 15 Curves: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Name Tool Code Samples Units GRCH PDK 68 1 GAPI BIF PDK 68 1 BKL PDK 68 1 CPS BKS PDK 68 1 CPS CSLS PDK 68 1 CU LS PDK 68 1 CPS SS PDK 68 1 CPS MSD PDK 68 1 CU RATO PDK 68 1 RBOR PDK 68 1 RICS PDK 68 1 RIN PDK 68 1 SGMA PDK 68 1 CU SGMB PDK 68 1 CU SGNT PDK 68 1 CU API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 6O * DATA RECORD (TYPE# 0) Total Data Records: 96 966 BYTES * Tape File Start Depth = 11367.000000 Tape File End Depth = 10653.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 22865 datums Tape Subfile: 2 310 records... Minimum record length: 62 bytes Maximum record length: 966 bytes Tape Subfile 3 is type: LIS FILE HEADER FILE NUMBER: 2 EDITED CURVES Depth shifted and clipped curves for each pass PASS NUMBER: 2 DEPTH INCREMENT: 0.5000 FILE SUMMARY PBU TOOL CODE GRCH PDK $ CURVE SHIFT DATA - PASS TO PASS BASELINE CURVE FOR SHIFTS PBU CURVE CODE: GRCH PASS NUMBER: 1 START DEPTH 10666.0 10686.0 STOP DEPTH 11338.0 11350.0 (MEASURED DEPTH) BASELINE DEPTH GRCH 10653.0 10653.0 10768.0 10771.5 10771.0 10774.0 10771.5 10773.0 10774.0 10776.0 10782.0 10785.5 10786.0 10788.5 10787.0 10787.5 10790.0 10807.5 10810.5 10809.0 10815.0 10818.0 10819.0 10820.5 10822.5 10824.0 10830.0 10833.5 10832.5 10836.0 10835.5 10836.0 10837.0 10837.5 10842.0 10843.5 10848.0 10871.5 10876.0 10883.5 10888.0 10892.5 10893.0 10896.5 10897.5 10902.0 10898.0 10902.5 10899.0 10903.0 10900.5 10904.5 10901.5 10905.0 10902.5 10906.0 in separate files. EQUIVALENT UNSHIFTED DEPTH SGMA 10653.0 10773.0 10774.5 10775.0 10777.0 10782.0 10785.5 10788.0 10789.0 10812.0 10818.0 10821.0 10821.5 10826.5 10840.0 10840.5 10841.0 10842.0 10846.5 10895.0 10901.0 10901.5 10902.0 10903.5 10904.5 10909.5 10911.0 10914.0 10915.5 10916.5 10917.5 10925.0 10926.5 10934.0 10935.5 10938.5 10945.5 10954.0 10957.5 10958.5 10959.0 10966.5 10967.0 10968.0 10969.0 10969.5 10972.0 10973.0 10973.5 10975.0 10978.0 10978.5 10979.0 10979.5 10980.5 10982.0 10983.0 10986.5 10990.0 11006.0 11020.5 11021.0 11021.5 11026.0 11026.5 11030.5 11034.5 11038.0 11040.5 11046.0 11047.5 11048.0 11048.5 11049.0 11050.0 11050.5 11052.0 11054.0 11061.0 11065.5 11067.0 11068.0 11080.0 10906.5 10907.5 10918.5 10920.0 10920.5 10921.0 10937.5 10947.0 10957.5 10970.5 10971.0 10971.5 10974.5 10975.0 10975.5 10979.5 10980.0 10981.0 10983.5 10984.0 10987.5 11007.5 11023.5 11032.0 11038.5 11048.0 11049.0 11049.5 11050.5 11052.0 11055.0 11060.5 11066.0 11067.5 11080.0 10912.5 10915.0 10926.5 10928.0 10936.5 10939.5 10956.5 10960.0 10960.5 10961.0 10969.5 10972.5 10976.5 10980.5 10983.0 10993.0 11022.5 11023.5 11027.0 11028.0 11032.0 11038.0 11044.0 11049.0 11051.0 11053.0 11068.5 11083.0 11095.5 11097.0 11135.5 11139.5 11145.0 11152.0 11158.5 11164.0 11168.0 11169.5 11170.0 11174.5 11182.0 · 11183.0 11184.0 11184.5 11185.0 11188.0 11188.5 11189.5 11190.5 11198.0 11200.0 11202.5 11206.5 11207.0 11209.0 11211.0 11213.5 11215.5 11217.0 11217.5 11219.0 11233.0 11233.5 11234.0 11261.0 11263.5 11274.5 11275.0 11275.5 11276.0 11276.5 11277.0 11278.0 11279.0 11283.5 11286.5 11287.5 11288.0 11288.5 11293.0 11293.5 11294.0 11294.5 11301.5 11304.5 11306.5 11307.0 11097.0 11136.0 11145.5 11152.0 11169.5 11202.0 11206.0 11207.0 11210.5 11213.5 11217.0 11218.0 11233.5 11234.5 11235.0 11276.0 11277.0 11277.5 11278.0 11278.5 11290.0 11295.0 11295.5 11302.0 11305.5 11083.5 11095.5 11139.5 11158.5 11164.0 11168.5 11170.0 11171.0 11175.5 11182.0 11183.0 11183.5 11184.0 11185.0 11188.5 11189.5 11190.5 11191.0 11197.0 11199.0 11208.5 11215.5 11219.0 11262.0 11264.5 11275.5 11276.5 11277.0 11277.5 11278.5 11279.0 11283.0 11287.0 11288.0 11289.0 11294.0 11294.5 11306.0 11308.5 11308.0 11314.0 11314.5 11315.5 11316.5 11317.0 11318.0 11328.0 11328.5 11342.5 11367.0 $ REMARKS: 11307.0 11314.5 11315.0 11315.5 11316.0 11317.0 11318.0 11319.0 11328.0 11329.0 11342.0 11367.0 11367.0 PASS 2. ALL PDK CURVES WERE SHIFTED WITH SGMA. ??MATCH3. OUT ?MATCH 4. OUT CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : 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 GRCH PDK 68 1 GAPI 2 BIF PDK 68 1 3 BKL PDK 68 1 CPS 4 BKS PDK 68 1 CPS 5 CSLS PDK 68 1 CU 6 LS PDK 68 1 CPS 7 SS PDK 68 1 CPS 8 MSD PDK 68 1 CU 9 RATO PDK 68 1 10 RBOR PDK 68 11 RICS PDK 68 1 12 RIN PDK 68 1 13 SGMA PDK 68 1 CU 14 SGMB PDK 68 1 CU 15 SGNT PDK 68 1 CU 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 6O * DATA RECORD (TYPE# 0) 966 BYTES * Total Data Records: 96 Tape File Start Depth = 11367.000000 Tape File End Depth = 10653.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 22865 datums Tape Subfile: 3 298 records... Minimum record length: Maximum record length: 62 bytes 966 bytes Tape Subfile 4 is type: LIS FILE HEADER FILE NUMBER: 3 EDITED CURVES Depth shifted and clipped curves for each pass in separate files. PASS NUMBER: 3 DEPTH INCREMENT: 0.5000 FILE SUMMARY PBU TOOL CODE GRCH PDK $ CURVE SHIFT DATA - PASS TO PASS BASELINE CURVE FOR SHIFTS PBU CURVE CODE: GRCH PASS NUMBER: 1 BASELINE DEPTH GRCH 10653.0 10653.0 10771.5 10774.5 10776.0 10777.0 10781.0 10781.0 10785.0 10789.0 10786.5 10787.0 10787.5 10807.5 10811.5 10809.0 10814.5 10818.0 10820.0 10823.5 10820.5 10821.5 10824.0 10825.0 10827.0 10830.5 10833.5 10835.5 10842.0 10843.5 10847.5 10860.0 10863.5 10862.5 10866.5 10870.0 10871.5 10875.0 10883.0 10887.0 10886.5 10898.5 10899.5 10904.5 10908.0 10909.0 10910.0 10914.0 10917.0 10917.5 10920.0 10923.0 START DEPTH 10670.0 10688.0 STOP DEPTH 11335.0 11347.0 (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH SGMA 10653.0 10773.5 10778.0 10782.5 10788.0 10789.0 10789.5 10811.5 10823.0 10824.5 10827.0 10827.5 10829.5 10840.5 10847.0 10872.5 10890.5 10902.5 10903.0 10912.5 10913.0 10916.0 10919.0 10920.0 10931.0 10932.0 10940.5 10950.5 10954.5 10955.5 10956.0 10957.5 10958.0 10965.0 10967.5 10969.0 10970.0 10971.0 10972.5 10976.5 10977.0 10978.0 10979.0 10979.5 10981.5 10983.5 10984.0 10985.5 10987.0 10988.0 10989.5 10990.5 10997.0 11009.0 11010.5 11011.5 11017.5 11018.0 11020.5 11030.0 11033.5 11034.0 11035.5 11036.0 11037.0 11039.5 11045.5 11049.5 11050.5 11054.0 11061.0 11073.5 11083.0 11086.5 11095.5 11096.0 11097.0 11097.5 11098.0 11103.5 11125.0 11135.0 11135.5 11136.0 10953.5 10962.5 10968.5 10971.0 10978.0 10978.5 10979.0 10980.0 10982.0 10986.0 10987.0 10988.5 11036.0 11038.0 11038.5 11051.0 11056.0 11062.5 11074.0 11087.5 11096.5 11097.5 11099.0 10933.5 10934.0 10942.5 10957.0 10958.0 10960.5 10962.0 10972.0 10973.0 10973.5 10975.0 10985.0 10990.5 10991.0 10992.5 10993.0 10999.5 11012.0 11013.5 11014.0 11020.0 11021.0 11023.5 11032.0 11035.5 11036.5 11038.0 11043.0 11049.0 11052.0 11055.5 11083.5 11098.0 11099.0 11104.0 11125.5 11135.0 11135.5 11136.5 11137.0 11144.0 11149.0 11152.5 11153.0 11153.5 11161.0 11163.0 11163.5 11165.5 11166.5 11170.0 11174.0 11180.5 11181.0 11186.0 11189.5 11190.0 11199.0 11199.5 11203.5 11206.5 11209.5 11213.5 11214.0 11217.5 11218.0 11259.0 11260.5 11275.0 11275.5 11276.0 11276.5 11278.5 11279.5 11284.0 11287.5 11288.0 11291.0 11291.5 11292.0 11293.0 11293.5 11301.5 11304.5 11307.0 11308.0 11308.5 11314.0 11314.5 11315.0 11316.0 11318.0 11318.5 11322.0 11323.0 11330.0 11332.5 11333.0 11333.5 11153.0 11163.0 11174.5 11181.0 11192.0 11192.5 11204.0 11207.0 11209.5 11213.5 11219.5 11220.0 11260.0 11276.0 11276.5 11279.0 11280.0 11285.0 11289.0 11290.0 11293.0 11294.0 11294.5 11295.0 11304.5 11308.5 11314.5 11315.5 11319.0 11329.5 11137.5 11145.5 11150.5 11153.0 11154.0 11161.0 11163.5 11169.5 11170.5 11171.0 11181.0 11186.0 11198.5 11199.0 11214.5 11261.5 11263.0 11274.5 11275.5 11277.0 11294.0 11302.5 11306.5 11309.0 11309.5 11316.5 11317.0 11319.5 11322.5 11323.0 11332.5 11333.5 11334.0 11342.5 11367.0 $ REMARKS: 11341.5 11367.0 11367.0 PASS 3. ALL PDK CURVES WERE SHIFTED WITH SGMA. / ? ?MATCH5. OUT /??MATCH6. OUT $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 15 Curves: Name Tool Code Samples Units 1 GRCH PDK 2 BIF PDK 3 BKL PDK 4 BKS PDK 5 CSLS PDK 6 LS PDK 7 '~'SS PDK $ MSD PDK 9 RATO PDK 10 RBOR PDK 11 RICS PDK 12 RIN PDK 13 SGMA PDK 14 SGMB PDK 15 SGNT PDK 68 1 GAPI 68 1 68 1 CPS 68 1 CPS 68 1 CU 68 1 CPS 68 1 CPS 68 1 CU 68 1 68 1 68 1 68 1 68 1 CU 68 1 CU 68 1 CU API API API API Log Crv Crv Size Length Typ Typ Cls Mod 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 60 * DATA RECORD (TYPE# 0) Total Data Records: 96 966 BYTES * Tape File Start Depth = 11367.000000 Tape File End Depth = 10653.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 45730 datums Tape Subfile: 4 289 records... Minimum record length: 62 bytes Maximum record length: 966 bytes Tape Subfile 5 is type: LIS FILE HEADER FILE NUMBER: 4 AVERAGED CURVES Compensated Neutron: Arithmetic average of edited passes for all curves. Pulsed Neutron: Unaveraged edited Pass 1 gamma ray and background counts; arithmetic average of edited static baseline passes for all other curves. DEPTH INCREMENT: 0.5000 PASSES INCLUDED IN AVERAGE PBU TOOL CODE PASS NUMBERS GRCH PDK $ REMARKS: 1 1, 2, 3 AVERAGED PASS. $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : 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 GRCH PDK 68 1 GAPI 2 BKL PDK 68 1 CPS 3 BKS PDK 68 1 CPS 4 BIF PDK 68 1 5 CSLS PDK 68 1 CU 6 LS PDK 68 1 CPS 7 SS PDK 68 1 CPS 8 MSD PDK 68 1 CU 9 RATO PDK 68 1 10 RBOR PDK 68 1 11 RICS PDK 68 1 12 RIN PDK 68 1 13 SGMA PDK 68 1 CU 14 SGMB PDK 68 1 CU 15 SGNT PDK 68 1 CU 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 24 1 4 4 00 201 '24 1 6O * DATA RECORD (TYPE# 0) 966 BYTES * Total Data Records: 96 Tape File Start Depth = 11367.000000 Tape File End Depth = 10653.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 45730 datums Tape Subfile: 5 117 records... Minimum record length: 62 bytes Maximum record length: 966 bytes Tape Subfile 6 is type: LIS FILE HEADER FILE NUMBER: 5 RAW CURVES Curves and log header data for each pass in separate files; raw background pass in last file. PASS NUMBER: 1 DEPTH INCREMENT: 0.2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10675.0 PDK 10687.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT) : BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): DEPTH CONTROL USED (YES/NO): STOP DEPTH 11350.5 11363.0 06-OCT-93 FSYS REV. J001 VER. 1.1 1106 06-OCT-93 11354.0 11359.0 10700.0 11350.0 1200.0 YES TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE SB SINKER BAR PDK PDK-100 $ TOOL NUMBER 2725XA BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): 0.000 11580.0 0.0 BOREHOLE CONDITIONS FLUID TYPE: FLUID DENSITY (LB/G): SURFACE TEMPERATURE (DEGF): BOTTOM HOLE TEMPERATURE (DEGF): FLUID SALINITY (PPM): FLUID LEVEL (FT): FLUID RATE AT WELLHEAD (BPM): WATER CUTS (PCT): GAS/OIL RATIO: CHOKE (DEG): PRODUCED FLUIDS 0.00 0.0 0.0 0 0.0 0.000 0.000 0.000 0.0 NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): 0.00 0.000 BLUELINE COUNT RATE NORMALIZATION IN OIL ZONE TOP NORMALIZING WINDOW (FT): 0.0 BASE NORMALIZING WINDOW (FT): 0.0 BLUELINE COUNT RATE SCALES SET BY FIELD ENGINEER FAR COUNT RATE LOW SCALE (CPS): 500 FAR COUNT RATE HIGH SCALE (CPS): 3000 NEAR COUNT RATE LOW SCALE (CPS): 0 NEAR COUNT RATE HIGH SCALE (CPS): 60000 TOOL STANDOFF (IN): 0.0 REMARKS: PASS 1. $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 23 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR PDK 68 1 GAPI 4 2 BIF PDK 68 1 4 3 BKL PDK 68 1 CPS 4 4 BKS PDK 68 1 CPS 4 5 CCL PDK 68 1 4 6 CSLS PDK 68 1 CU 4 7 CSS PDK 68 1 CPS 4 $ G1 PDK 68 1 CPS 4 9 G2 PDK 68 1 CPS 4 10 GElS PDK 68 1 CPS 4 11 ISS PDK 68 1 CPS 4 12 LS PDK 68 1 CPS 4 13 SS PDK 68 1 CPS 4 14 MON PDK 68 1 CPS 4 15 MSD PDK 68 1 CU 4 16 RATO PDK 68 1 4 17 RBOR PDK 68 1 4 18 RICS PDK 68 1 4 19 RIN PDK 68 1 4 20 SGMA PDK 68 1 CU 4 21 SGMB PDK 68 1 CU 4 22 SGNT PDK 68 1 CU 4 23 SPD PDK 68 1 F/MN 4 4 06 511 09 4 00 201 24 4 39 705 61 4 74 169 61 4 92 630 79 4 00 201 24 4 00 201 24 4 35 975 96 4 36 631 32 4 74 169 61 4 00 201 24 4 71 162 89 4 05 626 89 4 32 125 68 4 00 201 24 4 23 260 40 4 23 260 40 4 23 260 40 4 23 260 40 4 96 761 61 4 00 201 24 4 00 201 24 4 52 386 28 0 1 6 6 6 1 1 1 1 6 1 6 6 0 1 0 0 0 0 6 1 1 5 92 * DATA RECORD (TYPES 0) 966 BYTES * Total Data Records: 282 Tape File Start Depth = 11366.000000 Tape File End Depth = 10662.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 113339 datums Tape Subfile: 6 356 records... Minimum record length: 62 bytes Maximum record length: 966 bytes Tape Subfile 7 is type: LIS FILE HEADER FILE NUMBER: 6 RAW CURVES Curves and log header data for each pass in separate files; raw background pass in last file. PASS NUMBER: 2 DEPTH INCREMENT: 0.2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10665.5 PDK 10677.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): DEPTH CONTROL USED (YES/NO): STOP DEPTH 11352.0 11364.5 06-OCT-93 FSYS REV. J001 VER. 1.1 1152 06-OCT-93 11354.0 11359.0 10700.0 11350.0 1200.0 YES TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE SB SINKER BAR PDK PDK-100 $ TOOL NUMBER 2725XA BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): 0.000 11580.0 0.0 BOREHOLE CONDITIONS FLUID TYPE: FLUID DENSITY (LB/G): SURFACE TEMPERATURE (DEGF): BOTTOM HOLE TEMPERATURE (DEGF): FLUID SALINITY (PPM): FLUID LEVEL (FT): FLUID RATE AT WELLHEAD (BPM): WATER CUTS (PCT): GAS/OIL RATIO: CHOKE (DEG): PRODUCED FLUIDS 0.00 0.0 0.0 0 0.0 0.000 0.000 0.000 0.0 NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): 0.00 0.000 BLUELINE COUNT RATE NORMALIZATION IN OIL ZONE TOP NORMALIZING WINDOW (FT): 0.0 BASE NORMALIZING WINDOW (FT): 0.0 BLUELINE COUNT RATE SCALES SET BY FIELD ENGINEER FAR COUNT RATE LOW SCALE (CPS): 500 FAR COUNT RATE HIGH SCALE (CPS): 3000 NEAR COUNT RATE LOW SCALE (CPS): 0 NEAR COUNT RATE HIGH SCALE (CPS): 60000 TOOL STANDOFF (IN): 0.0 REMARKS: PASS 2. $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64 ) ONE DEPTH PER FRAME Tape depth ID: F 23 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR PDK 68 1 GAPI 4 2 BIF PDK 68 1 4 3 BKL PDK 68 1 CPS 4 4 BKS PDK 68 1 CPS 4 5 CCL PDK 68 1 4 6 CSLS PDK 68 1 CU 4 7 CSS PDK 68 1 CPS 4 8 G1 PDK 68 1 CPS 4 9 G2 PDK 68 1 CPS 4 10 GElS PDK 68 1 CPS 4 11 ISS PDK 68 1 CPS 4 12 LS PDK 68 1 CPS 4 13 SS PDK 68 1 CPS 4 14 MON PDK 68 1 CPS 4 15 MSD PDK 68 1 CU 4 16 RATO PDK 68 1 4 17 RBOR PDK 68 1 4 18 RICS PDK 68 1 4 19 RIN PDK 68 1 4 20 SGMA PDK 68 1 CU 4 21 SGMB PDK 68 1 CU 4 22 SGNT PDK 68 1 CU 4 23 SPD PDK 68 1 F/MN 4 4 06 511 09 0 4 00 201 24 1 4 39 705 61 6 4 74 169 61 6 4 92 630 79 6 4 00 201 24 1 4 00 201 24 1 4 35 975 96 1 4 36 631 32 1 4 74 169 61 6 4 00 201 24 1 4 71 162 89 6 4 05 626 89 6 4 32 125 68 0 4 00 201 24 1 4 23 260 40 0 4 23 260 40 0 4 23 260 40 0 4 23 260 40 0 4 96 761 61 6 4 00 201 24 1 4 00 201 24 1 4 52 386 28 5 92 * DATA RECORD (TYPE# 0) 966 BYTES * Total Data Records: 285 Tape File Start Depth = 11367.000000 Tape File End Depth = 10655.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 114107 datums Tape Subfile: 7 359 records... Minimum record length: 62 bytes Maximum record length: 966 bytes Tape Subfile 8 is type: LIS FILE HEADER FILE NUMBER: 7 RAW CURVES Curves and log header data for each pass in separate files; raw background pass in last file. PASS NUMBER: 3 DEPTH INCREMENT: 0.2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10670.0 PDK 10682.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): LOGGING SPEED (FPHR): DEPTH CONTROL USED (YES/NO): TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE SB SINKER BAR PDK PDK-100 $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT): LOGGER'S CASING DEPTH (FT): BOREHOLE CONDITIONS FLUID TYPE: FLUID DENSITY (LB/G): SURFACE TEMPERATURE (DEGF): BOTTOM HOLE TEMPERATURE (DEGF): FLUID SALINITY (PPM): FLUID LEVEL (FT): FLUID RATE AT WELLHEAD (BPM): WATER CUTS (PCT): GAS/OIL RATIO: CHOKE (DEG): NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): STOP DEPTH 11350.0 11362.0 06-OCT-93 FSYS REV. J001 VER. 1.1 1242 06-OCT-93 11354.0 11359.0 10700.0 11350.0 1200.0 YES TOOL NUMBER 2725XA 0.000 11580.0 0.0 PRODUCED FLUIDS 0.00 0.0 0.0 0 0.0 0.000 0.000 0.000 0.0 0.00 0.000 BLUELINE COUNT RATE NORMALIZATION IN OIL ZONE TOP NORMALIZING WINDOW (FT): 0.0 BASE NORMALIZING WINDOW (FT): 0.0 BLUELINE COUNT RATE SCALES SET BY FIELD ENGINEER FAR COUNT RATE LOW SCALE (CPS): 500 FAR COUNT RATE HIGH SCALE (CPS): 3000 NEAR COUNT RATE LOW SCALE (CPS): 0 NEAR COUNT RATE HIGH SCALE (CPS): 60000 TOOL STANDOFF (IN): 0.0 REMARKS: PASS 3. $ CN : BP EXPLORATION WN : Z - 12 FN : PRUDHOE BAY COUN : NORTH SLOPE STAT : ALASKA * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 23 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR PDK 68 1 GAPI 2 BIF PDK 68 1 3 BKL PDK 68 1 CPS 4 BKS PDK 68 1 CPS 5 CCL PDK 68 1 6 CSLS PDK 68 1 CU 7 CSS PDK 68 1 CPS 8 G1 PDK 68 1 CPS 9 G2 PDK 68 1 CPS 10 GElS PDK 68 1 CPS 11 ISS PDK 68 1 CPS 12 LS PDK 68 1 CPS 13 SS PDK 68 1 CPS 14 MON PDK 68 1 CPS 15 MSD PDK 68 1 CU 16 RATO PDK 68 1 17 RBOR PDK 68 1 18 RICS PDK 68 1 19 RIN PDK 68 1 20 SGMA PDK 68 1 CU 21 SGMB PDK 68 1 CU 22 SGNT PDK 68 1 CU 23 SPD PDK 68 1 F/MN 4 4 06 511 09 0 4 4 00 201 24 1 4 4 39 705 61 6 4 4 74 169 61 6 4 4 92 630 79 6 4 4 00 201 24 1 4 4 00 201 24 1 4 4 35 975 96 1 4 4 36 631 32 1 4 4 74 169 61 6 4 4 00 201 24 1 4 4 71 162 89 6 4 4 05 626 89 6 4 4 32 125 68 0 4 4 00 201 24 1 4 4 23 260 40 0 4 4 23 260 40 0 4 4 23 260 40 0 4 4 23 260 40 0 4 4 96 761 61 6 4 4 00 201 24 1 4 4 00 201 24 1 4 4 52 386 28 5 92 * DATA RECORD (TYPE# 0) 966 BYTES * Total Data Records: 285 Tape File Start Depth = 11365.000000 Tape File End Depth = 10653.000000 Tape File Level Spacing = 0.250000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 181716 datums Tape Subfile: 8 359 records... Minimum record length: 62 bytes Maximum record length: 966 bytes Tape Subfile 9 is type: LIS 93/11/ 4 01 **** REEL TRAILER **** 93/11/ 8 01 Tape Subfile: 9 2 records... Minimum record length: 132 bytes Maximum record length: 132 bytes End of execution: Mon 8 NOV 93 1:48p Elapsed execution time = 53.78 seconds. SYSTEM RETURN CODE = 0 PROGRAM: LISCAN REVISION: 5.1 St:tort o1~ execution: Th:u 2 NOV $9 5:28p **** REEL HEADER **** LIS 89/10/29 ATLAS 01 LIS CUSTOMER FORMAT TAPE **** TAPE HEADER **** LIS 89/10/29 4027 01 COMPOSITE OF MAIN,REPEAT AND CASED HOLE CN. FILE # 1 MAIN .001 1024 **** FILE HEADER **** CN : B.P. EXPLORATION W:N : PRUDMOE BAY FN : Z-12 COUN : NORTH SLOPE STAT : ALASKA , FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME TAPE DEPTH UNIT : FT 17 CURVES : NAME CODE SAMPLE# UNIT I CILD 68 1 MMHO 2 VILD 68 1 MMHO 3 VILM 68 1 MMHO 4 GR 68 1 5 RILM 68 1 OHMM BYTES 4 4 4 4 8 SPD 68 9 TTEN 68 · ' 10 · TEMP 68 11 CHT 68 12 SP 68 13 CSSN 68 !4 CLSN 68- 15 CN 68 16 CNC 68 17 AC 68 I FT 4 I LBS 4 1 DEGR 4 I LB 4 I MV 4 1 CTS 4 I CTS 4 I PCT 4 I PCT 4 1 US/F 4 * DATA RECORD (TYPE# 0)- 1014 BYTES * DEPTH CILD VILD VILM GR RILM RILD RFOC SPD TTEN TEMP CHT SP CSSN CLSN CN CNC AC 11620,000 0,1000000 0,1000000E-03 0,1000000 0,1000000E-03 0,1000000 0,1000000E-03 0,1000000 11 0 11 11 11 11 11 570,000 313,4468 3.235449 3.190334 100,0000 921,8513 · 0000000 0.0000000 E-03 E-03 E -03 E-03 0.100000 0.100000 O,1O0OO0 0,100000 138,00.00 6,028255 -56.52203 87.44574 520,000 511.5171 220,4375 2,023284 1,954968 4,379819 189.2079 936.2041 -62,45619 20,65137 24,65137 87,17120 470,000 408,3699 178,4375 2,370683 2,448760 4,353971 190,9340 911,8152 -54,43588 17,73508 21 · 73508 87, I 4981 420, 000 I I 8. 6548 58,1 2500 7,068714 8. 427811 9,909031 192,31 86 894,4385 -50.51 260 I 3,43207 17,43 207 74,42484 370,000 211,1382 100,6875 4,465023 4,736233 7.900064 192.9554 922,1826 -47,90027 19.05292 23,05292 79.03241 11 11 320,000 110,8869 52,96875 6,929127 9,018202 10,79124 193,0512 898.4097 -65.38908 18.88121 22.88121 81.11362 0E-03 0E-03 0E-03 0E-03 270,000 100,324~ 8,570250. 9.967648 192,6860 881,8347 15,93929 19,93929 220,000 57,52321 10,33047 17,38429 191 .9308 870,7222 47.53125 12.63723 -49,92149 78.23956 28,56250 12.37100 -67,74843 0,1000000E-03 0,1000000E-03 0,1000000E-03 136,6250 22,99770 100.0000 215,5000 22.34280 275,3821 184,6250 22,99770 280,5898 63,43750 22,99770 352,0251 99,50000 23,99760 301,9111 62,68750 22,99770 303.2495 52,15625 20,88870 326,2629 39,96875 20,23380 281,5806 0,1000000E-03 0,1000000E-03 0,1000000E-03 0,0000000 5036,102 30,00000 32,84035 5092,945 103,9806 28,52579 5061,977 116,4200 ~3,'69'548 4955,340 171.1631 49,43359 5006,172 119,9031 24,90298 4942,129 I 21,1 097 40,49385 4936,449 144,1770 31,68613 4890,352 103,9603 11. 11 170.000 10.01248 · 19t. 1'523 18.49580 120,000 10,42492 190,4590 20,52742 66.13121 15.12t45 883,9170 22.49580 62,30630 16.04974 91-8.3125 24.52742 3t.29688 14.62863 -53,01033 82,83972 29,26563 13,85046 -66,83636 87,58888 45,31250 22.99770 289,3743 43,57-813 22,99770 280,2437 36,10921 4946.535 117,0414 31,45473 5016,668 106,2213 11070.000 10,00023 189,9763 15,76053 11 020.000 8,509781 t89,1310 11,19672 10970,000 19,19469 I 87,621 6 13,67590 73,23805 13,65410 1044,045 19,76053 95.34709 10.48-800 1175,702 15.19672 34.97205 28,59427 1151.857 17,67590 34.95313 10,20721 -40.13161 78,02574 47.20313 14,45176 -1,895490 64.39771 16,73438 30,74144 -19,40495 60.86078 21,99780 318.1907 52,75000 9,999001 413,3835 24,23438 21.88860 354,9546 41,29871 5185,906 141,5276 75,87608 5596,852 220,8848 267,5815 5535,398 170,9161 10920,000 40,93288 185.2359 6,256593 10,70097 93,44945 1180,465 10,25659 5,578125 341.6904 -13,96441 56,49312 10,35938 14,99850 473,5972 77,93027 5529,469 326,2451 10870,000 15,75838 184.2237 18,26820 46,75043 Z1,39018 1077,496 22,26820 21.56250 21.8`8519 5,049690 82,64787 28.25000 14.99850 279,6853 105,4375 5257.543 113,9810 10820,000 32,25940 182,8377 5,185761 11,96791 83.55673 1071.311 9,185760 6,500000 127,0298 -58,27556 57,58412 13,60938 14,99850 513,6853 47,86609 5239,547 378,5364 10 770,000 10000,00 180,7543 54,16670 244,3430 4.092607 1053,785 58.16670 106.0000 0,2531497 -135,7745 65.13600 -10,12500 24,99750 141,6076 94,44342 5185.723 29,52780 10720,000 0,2000000 178.1769 58,15617 0,0000000 0,2000000 3O0.0O00 62,15617 TOTAL DATA RECORDS : STARTING TAPE OEPTH= **** FILE TRAILER **** FILE # Z **** FILE REPEAT,O02 0.0000000 0.2000000 -80.00000 50.00000 134 11620,00 ENDING HEADER **** TAPE 0,0000000 0,0000000 137,0572 DEPTH : 74,47195 3500,000 27,65720 10684.00 1024 * FOR ONE TAP 17 MAT DEP E DE RECORD (TYPE# 64~) TH PER FRAME DTH UNIT : FT CURVES : NAME I CILD 2 VILD 3 VILM 4 GR 5 RiLM 6 RILD 7 RFOC 8 SPD 9 TTEN 10 TEMP 11 CHT 12 SP 13 CSSN 14 CLSN 15 CN 16 CNC 17 AC CODE SAMPLE# UNIT BYTES 68 I MMMO 4 68 I MMHO 4 68 I MMHO 4 68 I API 4 68 I OHMM 4 68 I OHMM 4 68 I OHMM 4 68 I FT 4 68 I LBS 4 68 I DEGR 4 68 I LB 4 68 I MV 4 68 I CTS 4 68 I CTS 4 68 1 PCT 4 68 I PCT 4 68 I US/F 4 * DATA RECORD DEPTH RILM TEMP CN 11620,000 0,1000000E-03 0,1000000E-03 0.1000000E-03 11570.000 3,235449 100.0000 0,0000000 11520,000 2,023284 189.2079 20,65137 11470,000 2,370643 190.9340 17,73508 11420,000 7,068714 192,3186 13,43207 11370.000 (TYPE# O) 1014 BYTES * CILD RILD CHT CNC 0.1000000 0.1000000 0.1000000 0,1000000 313,4468 3.190334 92t.8513 0.0000000 511,5171 1.954968 936.2041 24.65137 408,3699 2.448760 911.8152 21.73508 115,6548 8.427811 894.4385 17,43207 211.1382 E-03 r--o~ E-03 E-03 VILD RFOC SP AC 0,1000000E-03 0,1000000E-03 0,1000000E-03 0,1000000E-03 138,0000 6.028255 -56.52203 87.44574 220.4375 4,379819 -62.45619 87.17120 178,4375 4.353971 -54.43588 87,14981 58,12500 9,909031 -50,51260 74,42484 100.6875 VILM SPD CSSN 0,1000000E-03 0,1000000E-03 O, 1000000E-03 136,6250 22,99770 100,0000 215,5000 22,34280 275.3821 184,6250 22.99770 280.5898 63,43750 22,99770 352.0251 99,50000 GR TTEN CLSN 0,1000000E-03 0,1000000E-03 0,1000000E-03 0.0000000 5036,102 30.00000 32,84035 5092.945 103.9806 28,52579 5061,977 116.4200 33,69548 4955,340 171.1631 49,43359 19.05292 23.05292 79.03241 11 -32O. 6.929127 193.0512 18.88121 11270.000 8.570250 192.686(] 15.93929 11 220.000 10.33047 191.9308 21.39037 11170.000 10.01248 191.1528 18.49550 11120.000 10.42492 1 90. 4590 20.52742 11 070.000 10.00023 189.9763 15.76053 11 020.000 8.509781 189.1310 11.19672 10970.000 19.19469 187.6216 13.67590 10920.000 40.93288 185.2359 6.256593 10870,000 15.75838 184. 2237 18.26820 10 820.000 32.25940 182.8377 5.185761 10 770.O0O 10000.00 180.7543 54.16670 10720,000 0.2000000 9.015202 898.4097 22.88121 100.3246 9.967648 881.8347 19,93929 57.52321 17.38429 $70.7222 25.39037 66.13121 15.12145 883.9170 22.49580 62.30630 16.04974 918.3125 24.52742 73.23805 13.65410 1044.045 19.76053 95.34709 t0.48800 1175.702 15.19672 34,97205 28.59427 1151.857 17.67590 10.70097 93.44945 1180.465 10.25659 46.75043 21.39018 1077.496 22. 26820 11.96791 83.55673 1071,311 9.155760 244.3430 4.09Z607 t053.785 58.16670 0.0000000 0.2000000 ~nn nnnn 52.96875 10.79124 -65.38908 81 .11362 47.53125 12.63723 -49.92149 78.23956 28.56250 12.37100 -67.74843 86.20921 31.29688 14.62863 -53.01033 82.83972 29.26563 13.85046 -66.83636 87.58888 34.95313 10,20721 -40.13161 78.02574 47.20313 14.45176 -1.895490 64.39771 16,73438 30,74t44 -19.40495 60.86078 5.578125 341.6904 -13.96441 56.49312 21.56250 21.88519 5,049690 82.64787 6,500000 127.0295 -58,27556 57.58412 106.0000 0.2531497 -135.7745 65.13600 0.0000000 0.2000000 62.68750 22.99?70 303.2495 52.15625 20. 88870 326.2629 39.96875 20.23380 281,5806 45.31250 22.99770 289.3743 43.57813 22.99770 280.2437 43.28125 21.99780 318.1907 52.75.000 9.999001 413.3835 24.23438 21.88860 354.9546 10.35938 14.99850 473.5972 28.25000 1'4.99850 279.6853 13.60938 14.99850 513.6853 -10.12500 24.99750 141.6076 0.0000000 0.0000000 24.90298 4942.129 121.1097 40.49385 4936.449 144.1770 31.68613 4890.352 103.9603 36.10921 4946.535 117.0414 31.45473 5016.668 106.2213 41.29871 5185.906 141.5276 75.87608 5596.852 220.8848 267.5815 5535.398 170.9161 77.93027 5529.469 326.2451 105.4375 5257.543 113.9810 47.86609 5239.547 378.5364 94.44342 5185.723 29.52780 74.47195 3500.000 TOTAL D4TA RECORDS STARTING TAPE DEPTH **** FILE TRAILER **** FILE # 3 CHCN .003 : 134 = 11620.00 1024 **** FILE HEADER ENDING TAPE DEPTH = 10684.00 , FORMAT ONE DEP RECORD (TYPE# 64!) TH PER FRAM:E TAPE DEPTH UNIT : FT 9 C URV 1 2 3 4 5 6 7 8 9 ES : NAME GR TEMP CHT TTEN SPD SSN LSN CN CNC CODE SAMPLE# UNIT BYTES 68 I API 4 68 I DEGF 4 68 1 LB 4 68 I LB 4 68 I F/MM 4 68 1 CTS 4 68 I CTS 4 68 I PCT 4 68 I PCT 4 * DATA DEPTH SPO RECORD (TYPE# 0) 1006 BYTES * GR TEMP SSN LSN CHT TTEN CN CNC 10847.000 0.0000000 0.0000000 100,0000 100.0000 30.00000 300,0000 3500.000 0.1221404E-03 -0.7526278 10797.000 42.55382 0.0o00000 100,0000 100.0000 30.00000 1084.648 5242.508 0.1221404E-03 -0.7526278 10747. 000 82. 38924 1 80.81 27 1047. 164 51 53. 070 42. 03149 I 38.6464 26.61 020 64. 60075 60.1 6423 10697. 000 78. 55553 I 79 . 8376 1 037. 609 51 00.41 0 42. 0374 0 149. 7744 31 . 50690 56. 35783 52. 84456 10647. 000 90,1 3393 178. 6421 1041 · 866 5082. 656 43,00160 I 43. 1729 27. 53220 64. 6291 8 60.18945 101597. 000 43.03731 10547.000 39,21930 10497.000 34.03230 10447.000 34.03230 10397.000 34.59030 10347.000 34.55460 10297.000 34.99062 10247.000 21.99780 10197.000 21.99780 10147.000 30.99690 10097.000 30.99690 10047.000 30.43890 9997.000 31.00281 9947.000 31.03261 9897.000 31.95520 9847.000 31.00281 77.55540 142.4962 80.01088 138.0157 70.85684 151.4960 '72.32729 134.4234 64.47800 151.9496 62.29871 158.4392 59.95265 152.5674 62.95~54 155.9169 61.76967 157.5557 53.!17622 153'2595 66.~7089 1421.1118 71.76367 133i. 2746 73.43642 135.9389 72.69040 134.6629 72.01045 129.9470 62.47853 129.8285 1:77.2968 32.11160 176.1460 28.02721 174.9968 29.69411 173.9238 29.95190 173.0307 34.32280 172.3853 38.14970 171.8698 35.58371 171.4737 36.33310 171,0745 35.91870 170.4766 32.00900 169.9267 31.82140 169.2119 25.85561 168.5006 26.37041 167.6609 27.85760 167.0557 24.57950 166.4931 24.72340 1025.364 53.17401 1034.885 60.67981 1031.834 70.87589 1044.020 53.17897 1027.135 46.72261 1043.929 41.32478 1053.318 41.79204 1032.419 46.54491 1035.183 44.76030 1037.875 48.26006 1033.070 54.20792 1029.687 57.91911 1037.972 63.25516 1052.119 51.65495 1031.315 64.61461 1036.495 62.22034 5016.699 50.01736 5040.836 56.68245 4966.164 65.73648 5013.680 50.02176 4918.996 44.28856 4961.785 39.49532 4956.336 39.91025 4869.121 44.13075 4866.930 42.54604 4870.371 45.65379 4852.148 50.93544 4794.164 54.23096 4764.988 58.96933 4775.813 48.66841 4717.156 60.17650 4678.289 58.05040 OTO?_nnn 4D x,/.D~6 lX~C 01/.~ in/.n c?c~ /.~ac 9-747. 000 30,99690 9697.000 30.99690 9647,000 31,03261 9597,000 31,55490 9547.000 3t ,40311 9497,000 30,99690 9447.000 30,99690 9397,000 31,39720 9347,000 30,99690 9297,000 31,99680 9247,000 31,99680 9197,000 31.99680 9147.000 33,40880 9097,000 43,99561 9047,000 43,99561 8997,000 43,99561 57.66672 122,9959 62.92848 134.3909 56.99431 135.1192 54,09900 148,8705 48,35481 150.9101 47.82532 152,9143 54.18994 154,4917 41.85216 I 53.3273 48,87355 145,5693 62,13339 1 38.1 274 58.69952 141.7015 63.99820 132,0390 61.74762 125,1327 61,01151 133.5637 60,87807 131.1879 62,34138 132.6826 165,272.9 24.00821 164,7535 29.18280 164.3288 29.50371 164,0830 35.68991 163,8427 38.74141 163,6652 37,26300 163,4606 39,61160 1 63,2479 40.80621 162,9284 33.75171 162,3352 31,53421 161,5063 25,68491 160,6883 24,30721 159.7954 27.18091 159,0714 25,95590 158,5256 27.60960 158.0429 25.47810 1033,449 63,94321 1040,923 57,02275 1040.176 51.31027 1045,740 43,66820 1028,531 39,23260 1025,972 37,21320 1048,371 39.56400 1053,920 36,04036 1051,875 42.05463 1053,673 54,22522 1059,958 70.75801 1040,313 74,26079 1031.554 60,25653 1024,695 60.71936 1036,683 54,24872 1030,476 57,96899 4657.141 59,58029 4630.160 53,43500 4608,023 48,36235 4620,219 41,57623 4571,141 37,63747 4561,012 35,84424 4564,262 37.93173 4543,934 34,80278 4498,309 40,14339 4454,070 50,95079 4418,621 65,63179 4381,246 68,74220 4391.555 56,30650 4315,508 56,71750 4296,570 50.97163 4285,410 54,27519 8-94?.000 43.99561 8897.000 43.99561 8847.000 43.99561 8797.000 43.59531 8747.000 43.98972 8697.000 43.99561 8647.000 44.98959 8597.000 44.98959 8547.000 40.59560 8497.000 39.40231 8447.000 39.99600 8397.000 42.99571 8347.000 43.99561 8297.000 43.99561 8247.000 43.99561 8197.000 43.99561 ~I/,? nnn 62.59592 t29.2762 6'0. 39613 129.1060 68.72180 139.3537 61.36714 135.1526 58.19884 133.1970 58.50209 136.8999 60.17455 133.3524 60.30360 134.7142 61.79980 129.2574 64,77612 134.3719 64,35619 131.9473 59.06517 127.5320 62.38181 127.5506 56.70285 128.6325 61.84778 127.4087 55.72-525 131.2671 1 57. 5974 26.55391 156.9854 23.55510 156.5461 30.02431 156.1390 31.99260 155.7257 27.94301 155.3096 27.35370 154.8365 30.41420 154.4498 24.03360 153.9652 23.45250 153.5276 27.73170 1 52.861'4 25.33600 152.3237 26.1 081'1 151.8083 28.20230 151.3456 24.79739 150.7652 26.51041 150.3470 26.03880 1029.094 58.78522 1036.188 72.40878 1039.619 52.66577 1035.870 45.13686 1031.608 55.49095 1040.175 54.35164 1023.269 45.88416 1026.296 62.95491 59.14253 1045.385 52.93742 1038.160 66.17944 1040.317 64.76343 1049.161 50.92044 1040.181 57.67915 1036.000 51.46051 1045.188 64.07343 4240.223 55.00002 4262.926 67.09764 4250.250 49.56601 4207.160 42.88039 4191.883 52.07474 4185.523 51.06305 4147.875 43.54399 4141.902 58.70271 4154.031 55.31738 4090.708 49.80728 4063.576 61.56612 4050.710 60.30870 4058.399 48.01619 4032.655 54.01787 3958.488 48.49574 3950.676 59.69592 8097,0~00 56. 59523 I 49.4140 1021,600 3892,249 43,99561 I 26. 9519 24,61920 61 , 05679 57,01 71 8 8047,000 56. 46837 148,7763 I 034,592 3932,400 43.99561 I 29,3593 29,27431 51 ,1 0452 48,17963 7997,000 59. 97830 I 48,42 02 1051 · 5 98 3981 , 025 43,59531 130. 2280 21 . 67570 67,67212 62,89154 7947,000 60,27869 147,9684 1037,834 3878,141 44,99550 132.4876 26.00841 64.64340 60,20206 7897,000 59.96637 147.4729 1044.193 3892,085 44,58931 127.9089 28,18710 54,46286 51,16183 7847,000 44,59520 55.46626 131,8070 146.9668 29,05280 1045,598 58,46408 3892,839 54,71489 7797,000 48.04036 146.4655 1061,193 3896,914 44,99550 144.8374 31,06281 43,56079 41,48087 7747.000 37,29158 145,9554 1036,377 3783,633 44,99550 155.7146 39,80971 35.68846 34,49031 7697.000 57,74249 I 45. 5820 I 048,109 381 6,337 44,99550 125 · 2766 21 , 94020 70.60837 65 · 49895 7647. 000 105,3058 145,2051 1053,754 3787,993 44,99550 124,1 936 24. 84650 63 · 89719 59 , 53951 7597,000 104,906.7 144,7009 1053,066 3769 , 364 44,99550 1 25.0245 24. 08060 64,671 02 60,22668 7547,000 0,0000000 130.5756 118,8424 144,2107 24,47260 300,0000 52,98738 3500,000 49,85172 7497.000 0.0000000 128.0351 100.0000 143.6918 30.00000 300.0000 10,90326 3500.000 9,556120 TOTAL DATA RECORDS : STARTING TAPE DEPTH = FILE TRAILER **** 271 10847,00 ENDING TAPE DEPTH 7471.00 **** TAPE LIS 89/10/29 TRAILER **** 01 TOTAL RECORDS IN THIS LOGICAL TAPE : 552 **** REEL TRAILER ***~ LIS 89/10/29 ATLAS 01 TOTAL RECORDS IN THIS LOGICAL REEL : 553 TOTAL RECORDS IN THIS PHYSICAL REEL: 553 End of execution:: Fri 3 NOV 89 8:25~ Eiapsed ex'ec~u~ion time = 14 hours, ** minutes, ** seconds. SYSTEM RETURN CODE : 0
