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Home My WebLink About197-230MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE:Friday, April 12, 2024 SUBJECT:Mechanical Integrity Tests TO: FROM:Brian Bixby P.I. Supervisor Petroleum Inspector NON-CONFIDENTIAL Hilcorp North Slope, LLC R-25A PRUDHOE BAY UNIT R-25A Jim Regg InspectorSrc: Reviewed By: P.I. Suprv Comm ________ JBR 04/12/2024 R-25A 50-029-22278-01-00 197-230-0 W SPT 8382 1972300 2096 811 812 816 816 177 192 195 195 4YRTST P Brian Bixby 3/5/2024 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 R-25A Inspection Date: Tubing OA Packer Depth 25 2353 2329 2323IA 45 Min 60 Min Rel Insp Num: Insp Num:mitBDB240306052240 BBL Pumped:4.2 BBL Returned:4 Friday, April 12, 2024 Page 1 of 1           MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg/ DATE: Tuesday, April 7, 2020 P.I.Supervisor I`a,j 41 ��zejo SUBJECT: Mechanical Integrity Tests // BP Exploration (Alaska) Inc. R -25A FROM: Jeff Jones PRUDHOE BAY UNIT R -25A Petroleum Inspector Src: Inspector Reviewed B,y�:r217 P.I. Sup" NON -CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT R -25A Insp Num: mitJJ200406083229 Rel Insp Num: API Well Number 50-029-22278-01-00 Permit Number: 197-230-0 Packer Well R -25A Type Inj w 'TVD PTD 1 1972300 Type Test i SP Test psi BBL Pumped: 4.3 111111, Returned: Interval I 4YRTST Iy/F Notes: I well inspected, no exceptions noted Inspector Name: Jeff Jones Inspection Date: 3/22/2020 Depth Pretest Initial I5 Min 30 Min 45 Min 60 Min 2392 Tubing 17117', 171 1 2096 IA 21 23030 2 � 229293 2299 0 3,1 OA 264 291 295 297 1, ._-- Tuesday, April 7,2020 page I ol1 • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission —� DATE: Tuesday,March 15,2016 TO: Jim Regg P.I.Supervisor I � ' 31i 711ta SUBJECT: Mechanical Integrity Tests BP EXPLORATION(ALASKA)INC. R-25A FROM: Matt Herrera PRUDHOE BAY UNIT R-25A Petroleum Inspector Src: Inspector Reviewed By: P.I.Supry �� — NON-CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT R-25A API Well Number 50-029-22278-01-00 Inspector Name: Matt Herrera Permit Number: 197-230-0 Inspection Date: 3/13/2016 Insp Num: mitMFH160313172012 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well R-25A Type Inj W`TVD 8382 ' Tubing 373 - 369 353 - 354 - PTD 1972300 • Type Test SPT Test psi 2096 - IA 9 2500 • 2482 2477 ' Interval 4YRTST PAF P V OA 193 197 197 • 197- Notes: SCOW SEP 2 6 2016 Tuesday,March 15,2016 Page 1 of 1 • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission DATE: Wednesday, April 11, 2012 TO: Jim Re gg e l A (4 SUBJECT: Mechanical Integrity Tests P.I. Supervisor BP EXPLORATION (ALASKA) INC R -25A FROM: Bob Noble PRUDHOE BAY UNIT R -25A Petroleum Inspector Src: Inspector Reviewed By: P.I. Suprv, 0-- ----- - NON - CONFIDENTIAL Comm Well Name PRUDHOE BAY UNIT R -25A API Well Number 50- 029 - 22278 -01 -00 Inspector Name: Bob Noble Permit Number: 197 -230 -0 Inspection Date: 4/6/2012 Insp Num: mitRCN120406151542 Rel Insp Num: Packer Depth Pretest Initial 15 Min 30 Min 45 Min 60 Min Well R -25A Type Inj G TVD 8382 IA I 805 2752 • 2739 2735 ' PTD 1972300 Type Test SPT Test psi 2095 OA 330 360 , 370 370 Interval 4YRTST P/F P Tubing 2120 2120 , 2120 2120 ' Notes: 5? kfANNED APP 1 7 2012 Wednesday, April 11, 2012 Page 1 of 1 • FR� TZ zsa l g'7 Z 30 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWeIIlntegrityCoordinator @bp.com] Sent: Sunday, April 08, 2012 6:14 PM To: 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 RJQ; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; 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 RJQ; Brooks, Phoebe L (DOA) Cc: AK, D &C Well Integrity Coordinator; Walker, Greg (D &C); Clingingsmith, Mike J; LeBaron, Michael J Subject: OPERABLE: Injector R -25A (PTD #1972300) AOGCC MIT -IA Completed Attachments: MIT PBU R -25 04- 06- 12.xls All, Injector R -25A (PTD #1972300) passed an AOGCC witnessed MIT -IA on 4/6/2012. The passing test confirms the presence of two competent barriers in the well. The well is reclassified as Operable. A copy of the MIT -IA form is enclosed for review. As a copy of the test is being sent at this time, it will not be included in the monthly MIT's e-mail sent to the AOGCC. Please call if you have any questions. Thank you, Gerald Murphy (alt. Mehreen Vazir) Well Integrity Coordinator X DA J 2 O1 Office (907) 659 -5102 Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 From: AK, D &C Well Integrity Coordinator Sent: Sunday, April 01, 2012 8:31 AM To: 'Regg, James B (DOA)'; 'Schwartz, Guy L (DOA)'; AK, OPS GC2 OSM; K, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad RJQ; AK, OPS Prod Controllers; Cismo i, Doug A; Daniel, Ryan; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Le. AK, RES GPB West Wells Opt Engr; AK, OPS Well Pad RJQ Cc: Olson, Andrew; Walker, Greg (D &C); Clingingsmith, Mike Subject: UNDER EVALUATION: Injector R -25A (PTD #19 300) AOGCC MIT -IA Required All, Injector R -25A (PTD #1972300) was due for - • -year AOGCC MIT -IA on 03/07/2012, however the well was shut in at the time in preparation for a tree change out. T' e tree change out is complete and the well is ready to bring on injection. A pre- injection MIT -IA passed on 02/24/20 proving two competent barriers in the wellbore. At this time, the well is reclassified as Under Evaluation so it n be placed on injection to perform an AOGCC witnessed MIT -IA once stabilized. A wellbore schematic, TIO plot, a d MIT -IA form are attached for reference. Please call if you have any $iestions. Thank you, 1 • • STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION Mechanical Integrity Test Submit to: jim.regg(rD.alaska.aov; doa. aogcc.prudhoe.bav(rDalaska.00v, phoebe.brooksaalaska.00v; tom.maunder(cbalaska.aov OPERATOR: BP Exploration (Alaska), Inc. • t FIELD / UNIT / PAD: Prudhoe Bay / PBU / R Pad t ? `(f _[ DATE: 04/06/12 OPERATOR REP: Gerald Murphy AOGCC REP: B. Noble Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well R -25A ` Type Inj. G TVD 8,382' Tubing 2120 2120 2120 2120 Interval 4 P.T.D. 1972300 ' Type test _ P Test psi '2095.5 Casing 805 2752 ' 2739 2735 ' P/F P Notes: Used 2.7 bbl meth to increase IA to test pressure. / OA 330 360 370 370 ' 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 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 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 I = 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 R - 25 04 - 12 • P13v( i -2 > A. @ 1-6 ,c7z3oo Regg, James B (DOA) From: Sunday, da p & C Well Integrity 2012 Coordinator [AKDCWeIIIntegrityCoordinator @bp.com] F To: 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 RJQ; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; 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 RJQ Cc: Olson, Andrew; Walker, Greg (D &C); Clingingsmith, Mike J Subject: UNDER EVALUATION: Injector R -25A (PTD #1972300) AOGCC MIT -IA Required Attachments: R- 25A.ZIP; R -25A TIO 04- 01- 2012.doc; MIT PBU R -25A 02 -24 -12 .xls All, Injector R -25A (PTD #1972300) was due for a 4 -year AOGCC MIT -IA on 03/07/2012, however the well was shut in at the time in preparation for a tree change out. The tree change out is complete and the well is ready to bring on injection. A pre- injection MIT -IA passed on 02/24/2012 proving two competent barriers in the wellbore. At this time, the well is reclassified as Under Evaluation so it can be placed on injection to perform an AOGCC witnessed MIT -IA once stabilized. A wellbore schematic, TIO plot, and MIT -IA form are attached for reference. Please call if you have any questions. Thank you, 5t APR 1 all Mehreen Vazir Olierrtaw. Cieral,1 Wm:ply Well Integrity Coordinator BP Alaska Drilling & Wells Well Integrity Office: 907.659.5102 Email: AKDCWeiiintegritvCoordinator @BP.com 1 PBU R -25A PTD # 1972300 4/1/2012 TIO Pressures Plot Welt R -25 4,000 • 3100 • - Thg — A—IA 2.00. --k OA OOA -000A — On 1.00 - i i I • • V. • • • • • • - . • • • • • - • • 111-111-0-10-111-111-0-10-10 111-111-0-10-10 111-111-0•-•-•4410•-•-•4410-11-4111 114.414-10410-110-0 114.414-10410-110-0 • • ' •-•-- - - -•- •- •- •114.414-10410-110-0 -•• -�a • + • - - • - • - - • - - - -•-•-• •4•4414.41 01/07/12 01/14/12 01 /21/12 01/28/12 02/04/12 02/11/12 02/10/12 02/25/12 03/03/12 03110/12 03/17/12 03/24/12 03/31/12 • • STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION Mechanical Integrity Test Submit to: jim.reacit alaska.gov; doa.aogcc.prudhoe.bavI talaska.aov; phoebe.brooks @alaska.gov: tom.maunder(rtalaska.aov OPERATOR: BP Exploration (Alaska), Inc. "Re ( "� 0-Iii FIELD / UNIT / PAD: Prudhoe Bay / PBU / R Pad DATE: 02/24/12 OPERATOR REP: Mehreen Vazir AOGCC REP: Not Witnessed Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well R -25A Type Inj. N ' TVD '9,901' Tubing 2096 2736 ' 2720 2704 ' Interval 0 P.T.D. 1972300 Type test P Test psi 2475.25 Casing 4016 ' 3984 3984 ' P/F P ' Notes: Pre - Injection MIT -IA OA Well Type Inj. TVD Tubing Interval P.T.D. Type test Test psi Casing P/F Notes: OA Well Type lnj. 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 Well Type lnj. 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 I = 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 R - 25A 02 - 24 - 12 TREE = 7" PVC • I SAFETOTES: WELL ANGLE> 70° a 10611' "'"' WELL WELLHEAD = FMC R-25A REQUIRES A SSSV WHEN ON MI '""'H2S READINGS ACTUATOR . BAKER C AVERAGE 125 ppm WHEN ON MI "'COM POSITE WRAP KB. ELEV = 41.09 REPAIR SH LEAK-DO NOT MIT-OA OVER 1200 PSI DUE TO BF. ELEV = 185 I I I DESIGNEDP" SURE RATING OF - 4 *AIR & DO NOT KOP = 1749' I PUMP METH OR METH BLENDINTOOA DUETO Max Angle = 102° i.i? 11 314' I CHEMICAL INCOMPATIBILITY w /EPDXY '-IN """ Datum MO= 10873' CAUTION #1- LNR DIFFICULT TO ENTER DUE TO 4.5" OD Datum TVD = 8800' s s GO IN 7" CSG; and #2 - 5-1/2" LNRPKR & HGR SET IN 7" 13-3/8" GSG, 72#, L-80, 10 = 12.347" I— 2950' ___.4 2112' I— 7" OTIS HRQ SSSV LAND NIP, W I 7" INSERT, ID = 3 81" (11/11/98) 9866' 1— 5-117' X 3-1/2" TIW TIEBACK SLV, ID = 2.93" TOP OF 3-1/2" LNR I— 9866' NOTE SET IN 7" CSG Minimum ID = 2.93" @ 9866' L 1 , i 9876' --I TIW LNR FKR 0 2.93" I TOP OF 3-1/2" LINER .. ,-1:;', l it 987T — 5-1/2" X 3-1/2" LNR HGR, ID = 2.93" 7" TBG, 26#, L-80, .0383 bpf, ID -, 6.276" — 9892' I ------- 9890' . —17" X 5-1/2 XO, ID = 4.892' I 9894' I--15-1/7 PKR SWS NIP, ID = 4.567' BEHIND 13-1/2" VVRP (02/23/12) 9899' -...,- CT LNR El ■..... 9901' 1 X 5-1/7' BKR FB-1 PKR, ID = 6.0O' IMII 01-M, I 9967' H5-1/2" PKR SWS NIP, ID = 4,562" I I 9972' — 5-1/2" SWN NIP MLLED OUT, ID = 4.55" - TOP OF 7" LNR ---I 9979' I. _ '. I 9977' 1-19-5/8" X 7" BKR LNR HGR 9979' H9-5/8" X T BKR LNR TOP FKR I BEHIND I 5-117' IBC, 17#, L-80, 0232 bpf, ID = 4 897' H 9983' / \ 9984' H5-1/7' WLEG, ID = 4.892" I CT LNR 9986' 'lamp fl LOG ??/??r?? I 9-5/8" CSG, 47#, L-80, NSCC, ID = 8681' ]-1 10241' ■ • MILLOUT WINDOW (R-26A): 10250' - 10265' ' I 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" I— -10265 [WHIPSTOCK 10265' PERFORATION SUMMARY REF LOG. SWS-CBT 09/14/92 ANGLE AT TOP PERF: 102' .0 11361' .14P44/46,_ Note. Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn./Sqz DATE ' 2-112' 6 11361 - 11381 0 01/12/98 -.../. 2-112' 6 11425 - 11445 0 01/12/98 :... 2-112' 6 11903 - 11923 0 01/12/98 4..woomm... 2-1 6 12020 - 12040 0 01/12/98 -imalimmIs... -4,11kwwwv 2-1/2" 6 12841 - 12:..1 0 01/12/98 -■■■■■ - ..17 2-1/2" 6 12905 - 12925 0 01/12/98 2-1/8" 4 12620 - 12640 0 09/08/98 I PBTD 7 12964' 2-1/8" 4 17760 - 12780 0 09/08/98 2-1/8" 4 12858 - 12878 0 09/08/98 [ 3-1/2' LNR, 9.3#, L-80, .0087 bpf, ID = 2.997' -{ 13036' I , . . _ DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 11117/92 N28E INITIAL COMPLETION 02/15/11 MB/A/0 SSSV SAFETY NOTE WELL: R-25A 01/14198 D16 SIDETRACK (R-25A) 02/27/11 TQ/PJC SFTY NOTE (COIVPOSITE WRAP) PERMIT No 1972300 03/19/10 JLW/SV CSG CORRECTION : 01/18/12 TMN/Jk/0 142S SAFETY NOTE AR No: 50-029-22278-01 09/05/10 SV SET DSSSV PLUG ( 4/26/10) 02/25/12 RCT/ PJC SET WRP (02/23/12) SEC 32, T12N, R13E, 1155 FEL, 1817 FVVL 09/23/10 PJC SAFETY NOTE UPDATE 03/23/12 JMO/PJC TREE CIO 11/17/10 JaWPJC PULL TTP (11/08/10) — BP Exploration (Alaska) , — STATE OF ALASKA ALASKA~AND GAS CONSERVATION COMMISS~ REPORT OF SUNDRY WELL OPERATIONS RECEIVE MAR 1 6 2010 1. Operations Abandon ^ Repair Well ^ Plug Perforations ^ Stimulate^ ,,~~ ,,~y~~~ ~ Performed: 'Alter Casing ^ Pull Tubing ^ PAIR Perforate New Pool ^ Waiver^ Time Extension ~ ~~ ~~ Change Approved Program ^ Operat. Shutdown ^ MANITE U Perforate ^ Re-enter uspended Well ^ F 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: Permit to Drill Number: Name: Development ^ Exploratory ^ 197-2300 3. Address: P.O. Box 196612 Stratigraphic^ Service ^~ .API Number: Anchorage, AK 99519-6612 50-029-22278-01-00 8. Property Designation (Lease tuber) : 9. Well Name and NumbeX~ ADLO-028257 PBU R-25A 10. Field/Pool(s): PRUDH OE BAY FIELD PRUDHOE BAY POOL 11. Present Well Condition Summary: Total Depth measured \ 13115 feet Plugs (measured) None feet true vertical 8771.5 feet Junk (measured) None feet Effective Depth measured 12964 feet Packer (measured) 9901 true vertical 8779 feet (true vertical) 8382 Casing Length Size MD TVD Burst Collapse Structural Conductor 80 20" 94# H-40 SURFACE - 80 SURFACE - 80 1530 520 Surface 2950 13-3/8" 68# L-80 SURFACE - 2950 SURFACE - 2833 5020 2270 Intermediate 10241 9-5/8"47# NT80-S SURFACE - 10241 SURFACE - 8654 5020 2270 Production Liner 271 7"26# L-80 9979 - 10250 8445 - 8661 5410 7240 Liner 3170 3-1/2"9.3# L-80 9886 - 13036 8354 - 8786 10530 10160 Perforation depth: Measured depth: SEE ATTACHED - _ _ - - True Vertical depth: _ _ - = - Tubing: (size, grade, measured and true vertical depth) 7" 26# L-80 SURFACE - 9893 SURFACE - 8376 5-1/2" 17# L-$0 9893 - 9984 8376 - 8449 Packers and SSSV (type, measured and true vertical depth) 9-5/8"X5-1/2" BKR FB-1 PERM PKR 9901 8382 12. Stimulation or cement squeeze summary: Intervals treated (measured): ~~~ ~y ~ ~. Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing pressure Prior to well operation: 4981 677 Subsequent to operation: 2123 493 14. Attachments: .Well Class after work: Copies of Logs and Surveys Run Exploratory^ Development ^ Service ^~ Daily Report of Well Operations X 1 . Well Status after work: Oil Gas WDSPL GSTOR ^ WAG ~ GINJ ^ WINJ^ 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: N/A Contact Gary Preble Printed Name Gary Prebl Title Data Management Engineer Signature Phone 564-4944 Date 3/16/2010 R-25A 197-230 e~~e1r wTT A/~IJ wIC\IT • Sw Name R-25A Operation Date 1/14/98 Perf Operation Code PER raw n^ ~r+v~n~~~. Meas Depth Top 11,361. -. Meas Depth Base 11,381. Tvd Depth Top 8,813.81 Tvd Depth Base 8,809.74 R-25A 1/14/98 PER 11,425. 11,445. 8,802.58 8,799.9 R-25A 1/14/98 PER 11,903. 11,923. 8,816.89 8,818.99 R-25A 1/14198 PER 12,020. 12,040. 8,833.93 8,838.02 R-25A 1/14/98 PER 12,841. 12,861. 8,819.63 8,816.24 R-25A 1/14/98 PER 12,905. 12,925. 8,808.78 8,805.37 R-25A 9/8198 APF 12,620. 12,640. 8,852.96 8,850.95 R-25A 9/8/98 APF 12,760. 12,780. 8,833.19 8,829.87 R-25A 9/8/98 APF 12,858. 12,878. 8,816.75 8,813.36 R-25A 4/17/07 BPS 11,800. 12,925. 8,809.53 8,805.37 R-25A 5/2/09 BPP 11,800. 12,925. 8,809.53 8,805.37 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG P ULLED 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 • • R-25A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY ACTIVITYDATE SUMMARY ' 2/16/2010 T/I/0= 10/0/0. Temp= 0 psi. Assist Furmanite, hold open bleed on OA ~ ~ (Furmanite wrap). Hold open bleed on OA for Furmanite. Heaters working properly. Vac truck removed fluid from cellar @ 09:30. Furmanite applied additional layers of composite wrap. Final WHPs= 10/0/0. Change out with ;night crew. **Job Incomplete`* Night crew in charge of valves. __W W _ ~_ . __.~__ 2/17/2010~T/I/O = 10/0+/0. Temp = SI. Assist with Furmanite wrap (prep for wrap). Hold open bleed for 24 hrs. Continued from day shift. Maintained open bleed on OA :during night shift. "Note: Ordered Vac truck for 0800 arrival to clean up cellar ainflow.* Final WHPs = 10/0+/0. { ~"*Job continued on day shift"* ;Day shift in control of well upon departure. 2/17/2010`T/I/0=10/0+/0. Temp=S1. Assist Furmanite (eval SH leak). **Continued from Dayshift** Maintained open OA bleed during shift, no OA activity present. **Note: Ordered Vac truck for 0800 arrival to cleanup cellar inflow. Final T/I/0=10/0+/0. ""Job continued on Dayshift** Dayshift in control of well upon departure. 2/17/2010 T10= 10/0/0. Si. Assist Furmanite, hold open bleed on OA (Furmanite wrap). Hold open bleed on OA for Furmanite. Vaced fluid from cellar @ 08:00. Furmanite appllied additional layers of composite wrap. Final WHPs= 10/0/0. Change out with night crew. "*Job Incomplete"* Night crew in control of Well. ___~~._ 2/18/2010 T/I/0= 10/0+/0 Temp= SI. Assist w/ Furmanite wrap (prep for wrap). No AL. """Continued from night shift*"* Maintained open bleed on OA until relieved by 'night shift. Furmanite applied final wrap on SH @ 10:00 am, start curing phase. ~ ~No activity from OA. ""*Job Complete, See log for details*"* FWHPs= 10/0+/0. Night shift has control of wellhead. 2/18/2010~T/I/O = 10/0+/0. Temp = Si. Open bleed on OA (Furmanite repair). No AL. Continued from day shift. Maintained open bleed on OA during night shift. !*Note: Ordered Vac truck for 0800 arrival to vac out cellar inflow.* Final WHPs = 10/0+/0. *Job incomplete, see log for details.* Day shift in control of well upon departure. ~~,~m ~.....~.~ .~_..~.....~~ 2/19/2010aT/I/O = 10/0+/0. Temp = SI. Open bleed on OA (Furmanite repair). No AL. Continued from day shift. Job shut down due to phase conditions (per PO). *Job incomplete, see log for details* Final WHPs = 10/0+/0. ASV, WV =Closed. SSV, MV =Open. IA & OA = OTG. NOVP. ._..~ ~..m__rv____~ . ~._ _. _ ....~_____ ~ __ . ~, ~ ,~ ~ ~_ _ ~ ~_ _ ._ _ ~ ,~~. 2/19/2010 T/I/0=10/0+/0. Temp=S1. Open bleed on OA (Furmanite repair). Maintain open bleed on OA during day shift. Final WHPs=10/0+/0. Job continued on a nightshift. Night crew in control of well. • 2/26/2010rT/I/O= 20/10/10. Temp= SI. WHPs (post Furmanite Wrap). No AL. T,IA & OAP F increased 10 psi. Last monitored on 2/19/10. =SV,WV= closed. SSV,MV=open. IA,OA=open to gauge. NOVP. 2/28/20103T/I/O=20/10/10. Temp=S1. WHPs (post Furmanite wrap). WHPs unchanged ~ since 02/26/10. Removed spill containment and released heater. SV, WV=Closed. WV, SSV=Open. IA&OA=OTG. NOVP. 3/5/2010 T/I/0=10/0+/20. Temp=S1. MIT-OA **PASSED**to 1200 psi w/diesel (WH repair). No AL. OA FL level near surface. Increased OAP from 0 psi to 1200 psi with 2.8 bbls. OAP lost 40 psi the 1st 15 mins & 10 psi the 2nd 15 mins for a total loss of 50 psi. There were no audible or visible signs of leaking on the Furmanite wrap. Job complete. Final WHPs=10/0+/0. SV, WV, MV=Closed. SSV=Closed. IA & OA=OTG. NOVP. i _. .. ~ _ ~~~ r WELLHEAD= FMC ,ACTUATOR= OTIS~ I KB. ELEV = 41.09' BF. ELEV = 18.5' KOP = 1749` 'Max Angie = 102 @ 11314' Datum MD = 10873' Datum TV D = 8800' SS 13-3/8" CSG, 72#, L-80, ID = 12.347" TOP OF 3-1/2" LNR (7" TBG, 26#, L-80, .0383 bpf, ID = 6.276" I 9890' TOP OF 5-1/2" TBG 9892' Minimum ID = 2.93" @ 9866' TOP OF 3-1 i2" LINER TOP OF 7" LNR 5-1l2" TBG, 17#, L-80, .0232 bpf, ID = 4.892" 9-5/8" CSG, 47#, NSCC, ID = 8.681" WHIPSTOCK PERFORATION SUMMARY REF LOG: SWS-CBT 09/14/92 ANGLE AT TOP PERF: 102 @ 11361' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL OpnlSgz DATE 2-1I2" 6 11361 - 11381 O 01/12/98 2-1I2" 6 11425 - 11445 O 01/12/98 2-1I2" 6 11903 - 11923 O 01!12/98 2-1/2" 6 12020 - 12040 O 01!12/98 2-1/2" 6 12841 - 12861 O 01/12/98 2-112" 6 12905 - 12925 O 01/12/98 2-1/8" 4 12620- 12640 O 09!08(98 2-118" 4 12760 - 12780 O 09(08/98 2-1/8" 4 12858 - 12878 O 09/08/98 SCAUTION1:~LNRDIF@FICULT ONENTERDUETO, R-2 5A 4.5" OD IN 7" CSG** **CAUTION 2: 5-1/2" LNR PKR 8 HANGER SEr IN 7"** 2112' 7" OTIS HRO SSSV LAND NIP, w/ 7" INSERT, ID= 3.81" (11/11198) 9866' 5-1/2" X 3-112" TNV TIEBACK SLV, ID = 2.93" NOTE SET IN 7" CSG 9$76' -~TMJ LNR PKR, ID = 2.93"~ 9$77' 5-1l2" X 3-112" LNR HGR, ID = 2.93" 9{ 890 J--j 7" X 5-1(2" XO, ID = 4.892" 9$94' 5-112" PKR SWS NIP, ID = 4.562" 9901' 9-5/8" X 5-1/2" BKR FB-1 PERM PKR 9967' 5-112" PKR SWS NIP, ID = 4.562" 9972' 5-1/2" SWN NIP MILLED OUT, ID = 4.55" 9977' 9-5/8" X 7" BKR LNR HGR 9979' 9-518" X 7" BKR LNR TOP PKR 99$3' 5-1/2" WLEG, ID = 4.892" 99$6' ELMD TT LOG NOT AVAILABLE MILLOUT WINDOW 10250' - 10265' I PBTD L_:_:_ 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 3-1/2" LNR, 9.3#, L-80, .0087 bpf, ID = 2.992" DATE REV BY COMMENTS DATE REV BY COMMENTS 11/17192 ORIGINAL COMPLETION 01/14!98 SIDETRACKCOMPLETION 08!04/06 DLB/PJC MIN ID CORRECTION 09!29/06 KCF/PAG SCHEMATIC CORRECTIONS 09!18!07 SPFlPJC SET INSERT SSSV (11/11!98) 06(04/09 JKC/TLH WRP PULL (05102/09) PRUDHOE BAY UNIT WELL: R-25A PERMIT No: 197-2300 API No: 50-029-22278-01 SEC 32, T12N, R13E BP Exploration (Alaska) NOT OPERABLE: R-25A (PTD #1972300) Confirmed Starting Head Leak Page 1 of 1 Regg, James B (DOA) From: NSU, ADW Well Integrity Engineer [NSUADWWeIIlntegrityEngineer@BP.com] Sent: Sunday, September 27, 2009 6:07 PM To: Regg, James B(DOA); Maunder, Thomas E(DOA); Schwartz, Guy L(DOA); GPB, Area Mgr West (GC2/WRD); GPB, GC2 OTL; GPB, GC2 Welipad Lead; Engel, Harry R; NSU, ADW Well Operations Supervisor; Rossberg, R Steven; GPB, Wells Opt Eng; GPB, Optimization Engr; GPB, Prod Controllers Cc: Brown, Don L.; NSU, ADW Weli Integrity Engineer; Wellman, Taylor T; Murphy, Gerald L; Quy, Tiffany Subject: NOT OPERABLE: R-25A (PTD #1972300) Confirmed Starting Head Leak Attachments: R-25A TIO plot.doc; R-25A.pdf ~/ ~ All, Well R-25A (PTD #1972300) has been confirmed to have a startinghead thread leak. Please have the well shut-in and freeze protected as soon as safely possible. The well has been reclassified as Not Operable. Plans a`re progressing to mitigate the thread leak with Furmanite composite wrap. A TIO plot and wellbore schematic have been included for reference. «R-25A TIO plot.doc» «R-25A.pdf» Please let us know if there are any questions. Thank you, Anna ~Du6e, ~.~. ~alt Torin Roschinger) Wel! integrity Coordinatar G~g wei~s G~o~,~ ~,~~;~~~ ,~~n ~,! _~. ~' ~?~~~~ Phone: (907) 659-51~2 '~.' , ~ Pager: (907} 659-51Q0 x1154 11/5/2009 PBU R-25A PTD #1972300 9/27/2009 TIO Plot a.ooo, ................................................................................ 3,000 { ~- Ttg ^ IA 2 OOD -; ~ OA , OOA OOOA ~ On ~ ~ ~ (~#\ ~-~' ~ 1.000 ~N -. O~ / v ^ ^^ ~~ ~~f ~f-ff ~H~af~-~ff-~~afE~f~~~~f~fai~~ ~~~~~~~~~~~~~a~fat~~~~t~ft~f~~~~~~ffF~a ~~~stf~~~^ osrz~~oa o~ioaro9 o~n~ros o~nero9 o7iz~io~ oeio~ios oe:ro?.~n~ oan=_.~os oe~zzroq oeinro9 o~~os~os a3nz~o~ osn9ros TREE = 7° CNV WELLHEAD = FMC ACTUATOR= OTI5 KB. ELEV - 41.d9' BF. EZEV = 18.5' KOP = 1749' Max Angle = 1d2 @ 1131A' Datum MD = 10873' Datum ND = 8800'~SS 13-3/$" CSG, 72#, L-80, ID = 12.347" TOP OF 3-1l2" LNFt ~ 7" TBG, 26#, L-80, .0383 bpf, ID = 6.276" ~ 9890' TOP OF 5-1/2" 1BG 9892' Minimum ID = 2.93" @ 9866' TOP 4F 3-1/2" LINER TOP OF 7" LNR ~ 5-1l2" TBG, 17#, L-80, .0232 bpf, ID = 4.892" 9-5l8" CSG, 47#, NSCC, ID = 8.681" WHIPSTOGK PERFORATION SUMMARY REF I~OG: SWS-CBT 09114I92 ANGLE A7 TOP PERF: 102 @ 11361' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-112" 6 11361 - 11381 O 01/12/98 2-1(2" 6 11425-11445 O 01/12/9$ 2-1l2" 6 11903 - 11923 O 01/12/98 2-1/2" 6 12020 - 12044 Q 01/12/9$ 2-112" 6 12$41 - 12861 O 01/12/98 2-1/2" 6 12905 - 12925 O 01/12198 2-1/8" 4 12820-12640 O 09I08/98 2-1!$" 4 12760 - 1278Q (7 09/08198 2-1/8" 4 12858 - 12878 O 09(08198 SAFETY NOTES: 70° @ 10611' AND 90° @ 14739' *"`CAUTION 1: LNR DIFFIGULT TQ Q~TEFt DIiE TO ~ 4.5" OD IN 7" CSG** ""CAUTI9N 2: 5-112" LNR PKR & HANGER SET IN 7"** ~~2112' 7" OTfS HRQ SSSV LAND NIP~ w/ 7" INSER7, ID = 3.81" (11/11/98) 9$66~ ~-1l2" X 3-112" 7NV TIEBACK SLV, ID = 2.93° ~, NOTE SEi' IN 7" CSG g$7~' TM/ LNR PKR, ID = 2.93" g$7]" 5-1/2" X 3-1/2" LNR HGR, ID = 2.93" 9$9C1' -' 7" X 5-1l2" XO, ID = 4.892" 9$94' 5-1/2" P{CR SWS NIP, ID = 4.562" 9901' ~ 9-5/8" X 5-1l2" BKf2 FB-1 PERM PKR 9967' 5-1i2" F'KR SWS NIP, ID = 4.562" gg72' 5-1/2" SWN NIP MILLED dUT, iD = 4.55" 9977~ 9-5/8" X 7" BKR LNR HGR gg79~ -~9-5l8" X 7" BKR LNR TOP PKR I 9983~ -' 5-1/2" WLEG, ID = 4.892" I gggg' ELMDTfLOGNOTAVAILABLE MILLOUT WINDOW 10250` - 10265' ~ ParD e PBTD 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" ~ 3-112" LNR, 9.3#, L-80, .00$7 bpf, !D = 2.992" ( DATE REV BY CdMMENTS DATE REV BY COMMENTS 11/17/92 {7RIGINAL COMPLETIl7N 01(1419$ SIDETRACKCOMPLETICtN 08(04l06 DLB/PJC M1N ID CORRECTION 09l29/06 KCF/PAG SCHEMATIC CdRRECTIONS 09/18/07 SPFIPJC 5ET~ INSERT SSSV (11111198) OB/04(09 JKClTLH WRP PULL (05/02/09) PRUDHOE BAY UNIT WELL: R-25A PERMIT No: 197-2300 API No: 50-029-22278-01 SEC 32, T12N, R13E BP F~cploration (Alaska) ~ .~~~ ~ ~ ~~~~ Al~~k~ Q~6 ~ G~~ ~A~S~ Co~tmi~sia~ ~~ BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 ~~~~~~'~" "~~,1~ .~. " ~ ~~1 ~J~ July 10, 2009 Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPB R-Pad Dear Mr. Maunder, Anch~r~~~ 1G~ ~ ~,3 C~ 1 -{ --~ f2' ~.~~ Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB R- 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, Torin Roschinger, at 659-5102. Sincerely, Anna Dube, P.E. BPXA, Well Integrity Coordinator s • BP Exploration (Alaska ) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10-404) R-pad Date Revised 7/10/2009 Well Name API # PTD # 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 R-02 50029203540000 1781000 1.25 NA 1.25 NA 6.8 5/11/2009 R-03A 50029203640100 1981710 1.5 NA 1.5 NA 7.65 5/13/2009 R-04 50029203740000 1790380 2.25 NA 2.25 NA 13.6 5/13/2009 R-05A 50029203800100 1972500 0 NA 0 NA 3 5/13/2009 R-06A 50029203880100 1981270 0.75 NA 0.75 NA 13.17 5/13/2009 R-07A 50029205230100 2000100 225 NA 2.25 NA 43 5/11 /2009 R-OS 50029205480000 1810010 0.25 NA 0.25 NA 1.7 6/12/2009 R-09A 50029206090100 1982330 3.25 NA 3.25 NA 17.85 5/14/2009 R-10 50029206180000 1810930 2 NA 2 NA 14.5 6/22/2009 R-11A 50029208930100 1982060 0.25 NA 0.25 NA 1.7 6/11/2009 R-12 50029209210000 1830350 0.25 NA 0.25 NA 1.7 6/12/2009 R-13 50029209290000 1830440 24 NA 24 NA 96.9 6/23/2009 R-14 50029209090100 2021560 0 NA 0 NA 0.04 5/18/2009 R-15A 50029209170100 1990360 0 NA 0 NA 1.7 5/18/2009 R-16 50029206860000 1811740 15 NA 15 NA 107.5 5/17/2009 R-17A 50029206770100 1981380 4 NA 4 NA 27.2 5/15/2009 R-18B 50029206330200 1981190 6.75 NA 6.75 NA 48.87 5/15/2009 R-19A 50029206370100 1971710 8.5 NA 8.5 NA 67.48 5/17/2009 R-21 50029209970000 1831200 0.25 NA 0.25 NA 3.4 6/13/2009 R-22 50029210050000 1831280 0.5 NA 0.5 NA 4.3 6/12/2009 R-23A 50029210130100 1972020 2.25 NA 2.25 NA 16.2 6/12/2009 R-24 50029212320000 1842160 9.5 NA 9.5 NA 37.4 6/12/2009 R-25A 50029222780100 1972300 0 NA 0 NA 1.7 5/18/2009 R-26A 50029215470000 1860370 0.75 NA 0.75 NA 4.3 6/22/2009 R-27 50029215570000 1860510 025 NA 0.25 NA 1.7 6/11/2009 R-29 50029222750100 1971070 20 3.9 1.25 NA 11.05 5/14/2009 R-31A 50029222770100 2021500 1.5 NA 1.5 NA $.5 5/11/2009 R-32A 50029224130100 1980090 0.75 NA 0.75 NA 8.5 6/11/2009 R-34 50029224080000 1931530 0 NA 0 NA 2.5 5/18/2009 R-35 50029224240000 1931810 0.25 NA 0.25 NA 1.7 5/11/2009 R-36 50029225220000 t941440 3.25 NA 3.25 NA 44.2 5/14/2009 R-39A 50029225260100 1960840 2 NA 2 NA 22.1 5/11/2009 R-40 50029229260000 1982000 1.5 NA 1.5 NA 6.8 5/14/2009 R-41 50029233990000 2081530 3.25 NA 3.25 NA 22.1 5/12/2009 i BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 June 26, 2009 ~ ~ ~A ~ ~, ~ Mr. Tom Maunder ~ Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of R-Pad Dear Mr. Maunder, ~ ~,3~ ~,5 A bp . ~ ~ ~,~ JUL Q ~ ZOQp ~~~~~~ ~s~ ~ G~~ ~on~m ~o~~~s~i~~ Ar~chora~ Enclosed please find a spreadsheet with a list of wells from R-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, 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, ~ 9.~~'~:~~~~~ ~;U~. ~~ . 2~D~~ 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 R-pad 6/25/2009 Well Name PTD # 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 R-02 1781000 1.25 NA 125 NA 6.8 5/11/2009 R-03A 1981710 1.5 NA 1.5 NA 7.65 5/13/2009 R-04 1790380 2.25 NA 2.25 NA 13.6 5/13/2009 R-05A 1972500 0 NA 0 NA 3 5/13/2009 R-06A 1981270 0.75 NA 0.75 NA 13.17 5/13/2009 R-07A 2000100 2.25 NA 2.25 NA 43 5/11 /2009 R-OS 1810010 0.25 NA 0.25 NA 1.7 6/12/2009 R-09A 1982330 3.25 NA 3.25 NA 17.85 5/14/2009 R-10 1810930 2 NA 2 NA 14.5 6/22/2009 R-11A 1982060 0.25 NA 0.25 NA 1.7 6/11/2009 R-12 1830350 0.25 NA 025 NA 1.7 6/12/2009 R-13 1830440 3.75 NA 3.75 NA 76.5 6/22/2009 R-14 2021560 0 NA 0 NA 0.04 5/18/2009 R-15A 1990360 0 NA 0 NA 1.7 5/18/2009 R-16 1811740 15 NA 15 NA 107.5 5/17/2009 R-17A 1981380 4 NA 4 NA 27.2 5/15/2009 R-18B 1981190 6.75 NA 6.75 NA 48.87 5/15/2009 R-19A 1971710 8.5 NA 8.5 NA 67.48 5/17/2009 R-21 1831200 0.25 NA 0.25 NA 3.4 6/13/2009 R-22 1831280 0.5 NA 0.5 NA 4.3 6/12/2009 R-23A 1972020 2.25 NA 2.25 NA 16.2 6/12/2009 R-24 1842160 9.5 NA 9.5 NA 37.4 6/12/2009 R-25A 1972300 0 NA 0 NA 1.7 5/18/2009 R-26A 1860370 0.75 NA 0.75 NA 4.3 6/22/2009 R-27 1860510 0.25 NA 0.25 NA 1.7 6/11/2009 R-29 1971070 20 3.9 1.25 NA 11.05 5l14/2009 R-31 A 2021500 1.5 NA 1.5 NA 8.5 5/11 /2009 R-32A 1980090 0.75 NA 0.75 NA 8.5 6/11 /2009 R-34 1931530 0 NA 0 NA 2.5 5/18/2009 R-35 1931810 025 NA 0.25 NA 1.7 5/11 /2009 R-36 1941440 3.25 NA 325 NA 44.2 5/14/2009 R-39A 1960840 2 NA 2 NA 22.1 5/11/2009 R-40 1982000 1.5 NA 1.5 NA 6.8 5/14/2009 R-41 2081530 3.25 NA 3.25 NA 22.1 5/12/2009 MEMORANDUM TO: Jim Regg j P.I. Supervisor ~ ~ j ~V 1 I~~ FROvI: John Crisp Petroleum Inspector State of Alaska Alaska Oil and Gas Conservation Commission DATE: Tuesday,Apri101,2008 SUBJECT: Mechanical Integrity Tests BP EXPLOR4TION (ALASKA) INC R-25A PRliDHOE BAY LNIT R-25A Src: Inspector NON-CONFIDENTIAL. Reviewed By: P.I. Suprv. 1~_ Comm Well Name: PRUDHOE BAY UNIT R-25A Insp Num: mitJCr08031411 1721 Rel Insp Num: API Well Number: so-oz~-2228-01-0o Permit Number: 197-230-0 ;/ Inspector Name: John Crisp Inspection Date: 3~7/zoos Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well ~ R 2~Type III]. W ~~ TVD ~ 8382 ~ IA ] 0 ~ 4020 ~~ 3980 ~ 3970 ~~ ~ P.T. ~ 1972300 TypeTest ~ SPT I Test psl ~ 2095.5 .~ OA ~,' 210 230 230 '~ 230 ~I ~ ~ 4YRTST P Interval P/F Tllhtn g'' 910 910 910 I 910 ~I Notes' 73 bbl's pumped for test. Tuesday, April Ol, 2008 Page 1 of I - - \.- .- - -, '"..__""'.._. u... ì 'iYí(A Ie ~''''''' ~ . Winton, Jim and Bob, Please see the attached MIT forms for the following wells: ./ PBU 03-10: CMIT-IAxOA for Waiver compliance (!: ?.<.C'- ~ ):~ I PBU 04-08: MITIA to evaluate the well for an IAxOA AA and waiver ../PBU R-25A: MITIA Pre-dewatering C /2..:':5- ~ ,,/PBU 04-13: MITIA Pre MI swap ¡ z:¿.~;) v/PBU P1-25: MITIA Pre MI swap tt(..J/-¿é(k', PtLS5 /PBU S-101: MITIA Pre MI swap ¡\\-z3Iz\;c::;:)5 ,/PBU NK-13: MITIA for UIC Compliance, Chuck Schéve witnessed &.".>'~.i:.. j ;./The MIT form for PBU X-36 (PTD #1961670) was emailed by Anna Dube on 9/10/06. If you need an additional copy or did not receive the email, ! will gladly send it again. Thank you for your patience. «MIT PBU S-101 11-23-03.xls» «MIT GPMA P1-25 09-06-06.xls» «MIT PBU 04-13 08-10-03.xls» «MIT PBU 04-08 08-04-05.xls» «MIT PBU R-25A 06-12-05.xls» «MIT PBU 03-10 09-30-05.xls» «MIT PBU NK-13 09-19-06.xls» Andrea Hughes (Filling in for Joe Anders) Well Integrity Engineer Office: (907) 659-5102 Pager: (907) 659-5100 x1154 ~~Ú) SEP 2; ~ 2(¡Oe Hi Jim, Thank you for the note. To update you on MITs that are ~ 1) PBU 04-13¡ due 1/8/2006 /2) PBU S-101¡ due 2/25/2006 3) PBU NK-13¡ due 5/4/2006 ~. 4) PBU X-36¡ due 5/20/2006 5) PBU R-25A¡ due 7/24/2006 past due: Completed Completed Completed Completed Completed 8/10/03 11/23/03 9/Ð/06 9/5/06 - 6/12/05 Sent in earlier e-mail We agree to schedule MITs on the following wells once on injection: lof4 9/25/2006 9: 15 AM ·~ \- -- ...."-_.~/,~. ~~\"~ u~v'.'~~n\' 'LJ '/... . Schedule when Schedule post Rig Schedule when Schedule post Rig 1) MPU H-06¡ due 2/28/2006 (81 since 7/2002) returned to injection / 2) PBU WG1-01¡ due 4/22/2006 (S1 since 12/12/2005) Sidetrack later this year 3) MPU F-41¡ due 5/14/2006 (S1 since 5/2005) returned to injection 4) PBU S-31A¡ due 6/1/2006 (S1 since 12/2004) Workover _ 5) PBU P1-01¡ due 6/4/2006 (S1 since 6/2006 for workover) A patch to restore integrity is planned. Scheduel when returned to injection ~/ 6) PBU Pl-25¡ due 7/2/2006 (S1 since 6/2006) 7) PBU GC-02C¡ due 7/22/2006 (81 since 4/2006) returned to injection, estimated some time in '07. Completed 9/6/06 Schedule when Others ~/1) PBU 03-10¡ M1T 9/30/2005 (CM1T 1AxOA) 2) PBU 04-08¡ M1Ts (IA and OA) doneper monthly injector rpt¡ date unknown- ',' this well is currently SI with an AA and Waiver being drafted. I apologize for this office dropping the ball on these wells. Thank you for your patience in this matter, Ron Wilson WI Tech 659-5524 ------------------------------ We have recently completed a mid year review of MIT data from our inspection database to see how many injection wells may be in question regarding MIT timing. Results of our review relating to BP-operated fields are as follows: MITs are past due for the following wells (injecting as of 7/31/2006) 1) PBU 04-13¡ due 1/8/2006 2) PBU S-101¡ due 2/25/2006 3) PBU NK-13¡ due 5/4/2006 4) PBU X-36¡ due 5/20/2006 5) PBU R-25A¡ due 7/24/2006 The following shut in wells are past their due date for MIT 1) MPU H-06¡ due 2/28/2006 (SI since 7/2002) 2) PBU WG1-01¡ due 4/22/2006 (S1 since 12/12/2005) 3) MPU F-41¡ due 5/14/2006 (S1 since 5/2005) 4) PBU 8-31A¡ due 6/1/2006 (SI since 12/2004) 5) PBU P1-01¡ due 6/4/2006 (SI since 6/2006 for workover) 6) PBU Pl-25¡ due 7/2/2006 (S1 since 6/2006) 7) PBU GC-02C¡ due 7/22/2006 (SI since 4/2006) A M1T for each well injecting on the list should be conducted as soon as practical¡ please notify the Commission for an opportunity to witness. Regarding 81 injectors, the Commission suggests deferring testing (at least 20f4 9/25/20069:15 AM .~"'~ . u~~,vh ~. v~" ,~" U~~'V.' ~~" \' ,'-' '''/... . the Commission's witnessed test) until injection is recommenced and well conditions have stabilized. There's also two wells with MITs that have apparently been done (not witnessed) that we would like to have for our database: 1) PBU 03-10¡ MIT 9/30/200S (CMIT IAxOA) 2) PBU 04-08¡ MITs (IA and OA) done per monthly injector rpt¡ date unknown As with all operating companies, the Commission is willing to work with you to take advantage of operating efficiencies in scheduling MITs (perform multiple MITs per pad¡ perform tests during the more temperate months¡ etc.). Feel free to call if you have any questions, and thank you in advance for your prompt attention to those MITs that are past due. Jim Regg AOGCC Content-Description: MIT PBU S-101 11-23-03.xls MIT PBU 8-101 11-23-03.xls Content-Type: application/vnd.ms-excel Content-Encoding: base64 Content-Description: MIT GPMA Pl-25 09-06-06.xls MIT GPMA Pl-25 09-06-06.xls Content-Type: application/vnd.ms-excel Content-Encoding: base64 Content-Description: MIT PBU 04-13 08-1O-03.xls MIT PBU 04-13 08-10-03.xls Content-Type: application/vnd.ms-excel Content-Encoding: base64 Content-Description: MIT PBU 04-08 08-04-05.xls MIT PBU 04-08 08-04-05.xls Content-Type: application/vnd.ms-excel Content-Encoding: base64 Content-Description: MIT PBU R-25A 06-12-05.xls MIT PBU R-25A 06-12-05.xls Content-Type: application/vnd.ms-excel Content-Encoding: base64 30f4 9/25/20069:15 AM V~ 'V\" ''-''''/V",'Vj,V-''-VU\l ''-''T''VVIV.-....Jn\L ''-''T'/... . Content-Description: MIT PBU 03-10 09-30-05.xls MIT PBU 03-10 09-30-0S.xls Content-Type: applicationlvnd.ms-excel Content-Encoding: base64 Content-Description: MIT PBU NK-13 09-19-06.xls MIT PBU NK-13 09-19-06.xls Content-Type: applicationlvnd.ms-excel Content-Encoding: base64 4 of 4 9/25/2006 9: 15 AM . . STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION Mechanical Integrity Test o//~ q \ ~s;'I00 \<-'~l({ Email to:Winton_Aubert@admin.state.ak.us;Bob_Fleckenstein@admin.state.ak.us;Jim_Regg@admin.state.ak.us;Tom_Maunder@admin.state.ak.us OPERA TOR: FIELD / UNIT / PAD: DATE: OPERATOR REP: AOGCC REP: BP Exploration (Alaska), Inc. Prudhoe Bay / PBU / R pad 06/12/05 Don Reeves Packer Depth Pretest Initial 15Min. 30 Min. WeIlIR-25A I Type Inj. I W TVD I 8,382' Tubing 700 700 700 700 Interval I 0 P.T.D.1972300 I Type test I P Test psi! 2095.5 Casing 560 2,500 2,470 2,470 P/FI P Notes: MIT-IA pre-dewatering. OA 200 200 200 200 Weill Type Inj. I I TVD I Tubing Interval I P.T.D.' I Type test I Test psil Casing P/F Notes: OA Weill I Type Inj.1 , TVD I Tubing I Intervall P.T.D.I I Typetest I Test psi! Casing I I P/FI Notes: OA I I Weill I Type Inj.1 TVD I Tubing I I Interval I P.T.D.I I Type test I Test psi I Casing I P/F Notes: OA I I Weill I Type Inj.1 TVD I Tubing Intervall P.TD. I Type test Test psi Casing I P/F Notes: OA I TYPE INJ Codes D = Drilling Waste G=Gas I = Industrial Wastewater N = Not Injecting W = Water MIT Report Form BFL 9/1/05 TYPE TEST Codes M = Annulus Monitoring P = Standard Pressure Test R = Internal Radioactive Tracer Survey A = Temperature Anomaly Survey D = Differential Temperature Test INTERVAL Codes I = Initial Test 4 = Four Year Cycle V = Required by Variance T = Test during Workover o = Other (describe in notes) MIT PBU R-25A 06-12-05."s . . FRANK H. MURKOWSKI, GOVERNOR ALASKA OIL AlQ) GAS CONSERVATION COMMISSION 333 W. 7'" AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Don Brown R Pad Engineer BP Exploration (Alaska), Inc. PO Box 196612 Anchorage, AK 99519 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, R-25A Sundry Number: 306-286 \1\ 1/~{) SCANNED AUG 2 (3 200B Dear Mr. Brown: 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 hearing has been requested. DATED thiS~ay of August, 2006 Encl. hûWb cftt£/1?>~b I?rG ~/~:~/6G c!// 1\ .( . STATE OF ALASKA . , .rJi> (() f( ( V'r ALASKA OIL AND GAS CONSERVATION COMMI N AU G 2 1 2006 Jvf\OJ APPLICATION FOR SUNDRY APPROVALS Alaska Oil & Gas Cons. Commission 20 AAC 25.280 Operational shutdown Plug Perforations D Perforate New Pool D 1. Type of Request: REC~~f)L\11.øat, Abandon Alter casing D Change approved program D Repair well D Pull Tubing D Other 2. Operator Name: bp Exploration (Alaska) Inc. 3. Address: 7. KB Elevation (ft): . Property Designation: 11. Total Depth MD (ft): 13115 Casing Structural Conductor Surface Intermediate Production Liner Perforation Depth MD (ft):/ 11361 '-12925' Packers and SSSV Type: / Waiver P.O. Box 196612 4. Current Well Class: Development -0- Stratigraphic D /' 5. Permit to Drill Number: 197-230 /" 6. API Number: 50-029-22278-01-00 Exploratory Service ~44-- ~ 9. Well Name and Number: 44.85 PBU R-25A,/' 10. Field/Pools(s): ADL 028279 Prudhoe Bay Field/Prudhoe Bay Pool PRESENT WELL CONDITION SUMMARY Effective Depth MD ift): Effective Depth TVD (ft): 12964 / 8799 Total Depth TVD (ft): 8771 Length Plugs (measured): None Junk (measured): None Size TVD 20" 80' 80' 13-3/8" 2950' 2833' 9-5/8" 10241 ' 8654' Burst Collapse 1530 520 5020 2270 6870 4760 80' 2950' 10241 ' 271' 7" 3170' 3-1/2" Perforation Depth TVD (ft): 8814'-8805' 10279'-11462' 9866'-13036' Tubing Size: 51/2" 17# / and SSSV MD (ft): 8445'-8661 ' 8354'-8786' Tubing Grade: L-80 5410 7240 10530 10160 Tubing MD (ft): 9983' 9901' /' 9-5/8" x5-1/2" Baker FB-1 Packer 12. Attachments: Description Summary of Proposal 0 Detailed Operations Program D BOP Sketch D 14. Estimated Date for Commencing Operations: 16. Verbal Approval: Commission Representative: Date: 13. Well Class after proposed work: Exploratory D Development -B- 15. Well Status after proposed work: \lJ41\- Oil -Er: Gas D Plugged WAG ~ GINJ 0 WINJ WDSPL Service D Abandoned D D D o 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Printed Name Don Brown 564-4323 Title R-Pad Engineer Signature 0 Gary Preble 564-4944 ~ Phone Date ~ ¡r COMMISSION USE ONLY Sundry Number: Conditions of approval: Notify Commission so that a representative may witness Plug Integrity D Other: Approved by: BOP Test 0 Mechanical Integrity Test D Location Clearance D APPROVED BY THE COMMISSION Dat' 1o//~ '.....·'1 ~. . ¡ ......... _8fL AUG 252006 <i~~ Submit in Duplicate Form 10-403 Revised 07/2005 To: . . Jerry Bixby/Clark Olsen Well Ops TL Date: August 16, 2006 From: Don Brown R-Pad Engineer Subject: Cost Code: R-25A PluQ Set PBRPDWL25A-C lOR: 150 Please use coil tubing to place a plug below the first set of perfs, then breakdown perfs for water injection. 11. S PulllSSSy,drift 12. C Set a WRP; establish injectivity; acidize if necessary ,/' Well Status: Max Deviation: Deviation at Plug: Safety Note: Min.ID: Last TD tag: Last Downhole Ops: Latest H2S value: Perf Depths: Ref Log: Injecting at 6000 to 7000 bwpd @ -700 psi 102 degrees @ 11314' MD 87 degrees @ 11800' MD 70° @ 10611' and 90° @ 10739' 2.93" @ 9866', top of 3-1/2" liner OS/29/2000: Deepest depth logged - 10696' MD 04/15/2002; Change out MCX Produced water injector. Beware of the potential for H2S in any returns Top Set: 11361' to 11445' Middle Set: 11903 to 12040' MD Bottom Set: 12620' to 12925' MD SWS Slim Access Sonic Log, dated 1-8-1998 Purpose: Isolate top set of perforations and establish injectivity to provide a new pattern support to surrounding producers. Historv: This well was drilled in 1998 and has 3 major sets of perforations. From a temperature survey run on 06/04/00, injection is established only in the middle set of perfs with communication benefiting only 2 producers. This well has been used as a pigging well (1/1/2006) / in addition to being a dewatering well. Last SBG treatment was 4/15/06. Procedure: 1. PuIlISSSV, drift 2. Using coil, set a WRP or Halliburton BB Bridgeplug at 11800' MD. There is 458' from bottom of top set of perfs and the top of the second set of perfs. Placement of plug will be / approximately 355' below top set of perfs (100' above middle set of perfs). 3. Pump down backside and establish a 3.3 bpm injectivity (4.2 bpm will be max. injectivity) 4. Pending step 3, if injectivity is not established, pump 10 bbls of 90:10 DAD and establish 3.3 bpm injectivity. / 5. Pump down backside and establish a 3.3 bpm injectivity (4.2 bpm will be max. injectivity) . . . . . . . .. ': 6. POI If you have any questions or concerns regarding this program, please contact Don Brown at 564- 4323, at 745-8386 (h), 351-7108 (c) or Jennifer Julian at 563-5663, at 240-8037 (c), or 274-0929. Note; sometimes JJ's phone doesn't work from the CTU and you will need to use your truck phone to call her. Thank you. TJOSE- \lH¡¡'¡.HE"D _ T',c¡:Xili ""~ R-25A I &"FET)" rnrra' H'i@ 'O@'l" "i'lDii:!' ~ iG7W ~.3Æ"¡- 41.1:5' ~æ. :¡;.L.EÛ':-,;;"~§Æ i3-~,~' C;;0,7l#; L,~Q.1O_1~.:3'W za50' 2t1:2' 1" œi$~$%$'tJ i.A,,"'\O t'iiF:t C'-5_56-2'" :)šiitmT;JQ::. SSW' S:'V2",XJi-1fr TUl"~Q($L¡l, D -:~U92:' rrli~P(~, Ð-2:93"" Sol?Z":X5-1JZ' :l.m K)~~ ~iC'.. zsr x"mè:.: 3:#:, L-:St\ ß-*3 :~,~ D .E:...2:1:¿.'" ~' '8S3" 7'" Ä.:5~lfZ" ~D TI:1POF;,.'tiZ" 1õG Sß5.J' $æ4~ S--1f2~ fK..:;¡-$;'~:i"$?:, 'i(}-4,S$Z' Minlirn..tm D = 2.992" @ 9866' TOP OF .3-~12" i..NER 'Mlr S"Si$:")( 5-1JZ' :Si(.'R;FS-"1! Fetd~ "1O?:J~7"LNR: $875' $$T '917' 5915' '81T 5--ti2" $"ðN NF:~~ct.Jt 0- 4.SS-- 5,.1i2" FK~;5M'ß:NF~, ';C:-4~ !!-5Œ:X:O-.~ L'SRfr~ S:-'$lS:!" >::7'.~ lJsiR-"?'CI?:~ S,..-1~'2" T'Bè., '17:1, L"SC; £212 :to:P( ,D .,4..æ¡r' 5$83' $ß!W S:.tl2"'Wj~ ~¡TIONE.œd'JAE;Y RS:::LOO::$-n$:,..ŒT'r:$i4;-'SZ l\ÆW=h~;"!TCF F£:'~: iOZ ~ '11:E<:&V I\ö-:æ: Ref~'D Fr>:.audsc!:'i Œ1'o; ~äb:¡,It:S. P!!rf ;:i-~a SiZE -SFF ,,*"7EFN"~".L ~<;S¢ "^ TE :"ltZ'" 6 lt3f.i -"~'i:3a'l 0 ;J'1t'f::i'?S' ;::--li'211 e h42S ·~i44:'S a- ~JV1?Z'SS :"'V=." IS 1i'ilDw"\1:?:3 0 ;¡¡lhGl$ ::"1¡<::'" e UC'Zi·' i25tJ Q ;ZUt1:r:.s ::¡::..ta," IE 1]'S4i ~'1lSS1 0 iz)llti2S$ 2~lf2" e 12!Œ - 1Zi25 'J JV1¡:'$$ :~1fE~ -4 1:215Z! - '12S4iJ ·0 J;~'GS'SS :Hrs" 4 1.:::1£0 - j:';¡'7SiJ C· O'9i[!:ðiS$: ':::-,1;2'" 4 1J:~ - 1]:$7::; ;~ Q~uaSE:- '9!!.s" H .5L\!C", LO$NOTAVAL"IiiLaI tJ.t.LOl.li'W~-otA' 1:>:!sa - 1Q3S' 1:2$1;4· J,---tŒ LIft 5L3!i:." L-'iÆC, J:Þ':Jf£l'b¢,. :[).. :2..5'SZ 13i!56' rIA"Æ. j1JUiSZ Ül/14iSS, œJ14~tH œHS¡'C;t œ.cr¡/D':2 æiSY c~ œ~cœAsr::tQN! ~c.,",>(COi.A.Er:Oi\? &G~ELT ~*"'ERTE)TO,Gi\~.r<.~A5 ar-i-tdD mils.L Rhi'7P ca~~:::J';ì$ ~:re RStE'f œ.""iKTS f!'!L1Oofœ BIIY!MT '.'I'J'B..L:: ~~2S.>\ fER!.m;~" '1'97:",nCO' ~ Nt~ :SJ-~;.;Zzr:12-Di S&f32., ?'i:N,.. Fr~ 3E EP&ØG.t~ {þjICt!,:~J MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission THRU: Tom Maunder )~~, .~ P.,. Supe so TO: Cammy O Taylor t~3,{ DATE: July 24, 2002. Chairman SUBJECT: Mechanical Integrity Tests BPX R Pad ~ ~ PBU FROM: Chuck Scheve Prudhoe Bay Petroleum Inspector NON- CONFIDENTIAL ' WellI R-05A P.T.D.I 197-250 Notes: WellI R-20A P.T.D.I 198-088 Notes: WellI R-22 P.T.D.I 183-128 Notes: WellI R-25A i p.T.D:I 197-230 Notes: , Welq P.T.D.I Notes: Packer Depth Pretest Initial 15 Min. 30 Min. I Typelnj.I S I T.V.D. ]8131 ~0~0 I~0~0 i~0~0 i~0~0 Ilntervall 4 Type testJ P J TestpsiI 2033 J CasingI 0 I 2340J 234O I 234O1 P/F I P J Typelnj. J S J T.V.D. 18~52 J Tubing J1400 J1400 J1400 J1400 J,nterva, J 4 TypetestJ P ITe'stpsiJ 2113 JCasingJ 0 I 2250 J 2250 l. 2250 I P/F I P s I I J,nterVa, J 4 TypetestI P ITestpsiJ 1800 J CasingI 140 I 2180 12150 i 2140 I P/F I P J Type,nj.J sJ T.V.D. J8382 J T.b~ngJl040 J1040 J1040 J 1040 J,nte%,I 4 Type testJ P J TestpsiJ 2096 J CasingJ 60 J 2280 J 2280 J 2280 J P/F J P J Type Inj. J I T.V.D. J J Tubing J J J J J lntervalJ TypetestJ ' J Test psiJ J Casing J 'J J J J P/F J ' Type INJ. Fluid Codes F = FRESH WATER INJ. G = GAS INJ. S = SALT WATER INJ. N = NOT INJECTING Type Test M= Annulus Monitoring P= Standard Pressure Test R= Internal Radioactive Tracer Survey A= Temperature Anomaly Survey D= Differential Temperature Test Interval I= Initial Test 4= Four Year Cycle V= Required by Variance W= Test during Workover O= Other (describe in notes) Test's Details I traveled to BPXs R Pad and witnessed the 4-year MIT on wells R-05A, R-20A, R-22 and R-25A. The pretest tubing and casing pressures were observed and found to be stable. The standard annulus pressure test was then performed with all 4 wells demonstrating good mechanical integrity. M.I.T.'s performed: 4_ Attachments: Number of Failures:O_ Total Time during tests: 4_ cc: ,SCANNED IlU~ 1 2, 2002 MIT report form 5/12/00 L.G, MIT PBU R Pad 7-24-02 CS.xls 7/31/2002 T_L_~E ~V~TEmAL tmOEl~ Tn~S COVER ~s ON OR BEFORE JANUARY 03 2001' . PL M ATE C:LO~ILM. DOC E W L U N D E TH IS M ARK ER Well Report ~oomp. O1 /'14 /1998 PRUDHOE BAY UNIT R-25A Completion Status: WAGIN Current Status 029-22278-01 197-230-0 BP EXPLORATION MD 13115-TVD 08771 Name Interval Sent Received BO 8235 [.t~,3 SPERRY MPT/GR 2/18/98 2/18/98 8329 c~l SCHLUM SLIM/AIT/PEX/BHC 3/13/98 3/13/98 DGR-TVD 6I~5INAL 8799-8772 2/18/98 2/18/98 D DGR/MD ~"~'INAL 10264-13115 2/18/98 2/18/98 D SCMT L~ BL(C) 9850-10720 11/23/99 11/30/99 SLIM-AlT ~,L,/FINAL 10000-13115 3/13/98 3)13/98 SLIM-NDT ~ FINAL 10000-13115 3/13/98 3/13/98 SLIM-SL LL/'FINAL 10000-13115 3/13/98 3/13/98 Daily Well OpsO~/!~)?- //..~!?~o Are Dry Diteh Samples Required, yes (~ AndReeeived2~--e.,--~r-- Was the ~veli cored? yes Q~__~_ Analysis Description Receive~mpletet'9----'~ Comments: Monday, January l0, 2000 Page 1 of 1 GeoQuest 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 ATTN: Sherrie NO. 1291~2 Company: Field: Alaska Oil & Gas Cons Comm Attn: Loft Taylor 3001 Porcupine Drive Anchorage, AK 99501 Prudhoe Bay (Cased Hole) 11/23/99 Well Job # Log Description Date Blueline Sepia Color CD Prints R-25A 99410 SCMT 991025 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Schlumberger GeoQuest Petrotectnical Data Center MB3-3 ~ ,~ ...... " 3940 Arctic Blvd, Suite 300 900 E. Benson Blvd.I~ I~,~,,~ ~ ~VED Anchorage. AK ~9503-571,1 Anchorage, Alaska 99519-6612 A~N: Sherrie ~ '~~. Date Delivered'. ' Received ~# .~t( ~~ STATE OF ALASKA ....... ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well [] Oil [] Gas [--I Suspended [--lAbandoned [~ Service Water Injection 2. Name of Operator 7. Permit Number BP Exploration (Alaska)Inc. 97-230 3. Address 8. APl Number P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-22278-01 4. Location of well at surface ~'~''''~?,-i:~'~'~i'~'l'~ ~ ~' 9. Unit or Lease Name 1155' NSL, 1817' EWL, SEC. 32, T12N, R lSE, U M i !/~'T~a;2 i,!._~,_./~7.~_~ .~~ Prudhoe Bay Unit At top of productive interval ~,- ~...~ 10. Well Number 3480' NSL, 2655' WEL, SEC. 31, T12N, R13E,. UM! ~.r'~,;4;,-' ~ i~ R--25Ai At total depth '~ ':~.._7¥/-'..:~.,7-'¥-1%~~~ 11. Field and Pool 4857' NSL, 4866' WEL, SEC. 31, T12N, R13E, UM Prudhoe Bay Field / Prudhoe Bay 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Serial No. Pool KBE = 44.85'I ADL 028279 12. Date Spudded12/31/97 I 13' Date T' D' Reached I 14' Date C°mp" Susp" °r Aband't15' Water depth' if °ffsh°re 16' N°' °f C°mpleti°nsl/6/98 1/14/98 N/A MSL One ]17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD)I19. Directional Survey 120. Depth where SSSV set 121. Thickness of Permafrost 13115 8771 FT 12936 8803 FTI [~Yes F-~No (Nipple) 2112' MD 1900' (Approx.) 22. Type Electric or Other Logs Run MWD, GR, CCL, RES/ALT, DT/BHC, CNL, LDL, GR, Caliper, SP, MRES, CBL (~. ,~% i ~..~ 23. CASING, LINERAND CEMENT,NC RECORD [-- : - (~, i ~ .~t b CASING SE%I-lNG DEPTH HOLE SIZE WT. PER FT. GRADE TOP BOTTOM SIZE CEMENTING RECORD AMOUNT PULLED 20" Conductor H-40 Surface 80' 30" 11 ydsArcticset 13-3/8" 68# L-80 Surface 2950' 17-1/2" 2150 cu ft AS III, 401 cu ft AS I, 281 cu ft 'G' 9-5/8" 47# NT80-S Surface 10241' 12-1/4" 1710 cuft Class 'D', 245 cu ft Class 'G' 7" 26# L-80 9979' 10250' 8-1/2" 261 cuft Class 'G' 3-1/2" 9.3# L-80 9866' 13036' 4-1/2" 266 cuff Class 'G' '24. Perforations open to Production (MD+TVD of Top and 25. TUBING RECORD Bottom and interval, size and number) S~ZE DEPTH SET (MD) PACKER SET (MD) 2-1/2" Gun Diameter, 6 spf 7", 26#, L-80 9893' MD TVD MD TVD 5-1/2", 17#, L-80 9893'-9984' 9901' 11361' - 11381' 8814' - 8810' 11425' - 11445' 8803' - 8800' 26. AC~D, FRACTURE, CEMENT SQUEEZE, ETC. 11903' - 11923' 8817' - 8819' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 12020' - 12040' 8834' - 8838' , F.r_.~ee~¢ ~o~e1~t~w~ ,t~ .,8¢5~ Bbls of Diesel 12841'- 12881 8820' - 8813' ~.. ~ i~ ,% , ~ ~ : ~ 12905'- 12925' 8809'- 8805' ~' ~ ,~ ~ , ~ r. ~ ~ 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.)~_.,~.~,~Sk-~..,.~ ~i!,~.,, ~,. c?.~.,~.o ¢.. r:r,~.,:,~. 0r,~%Sior;,.~...,. May 12, 1998 Water Injection A~oh0r~.ge Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE IGAS-OIL RATIO TEST PERIOD I Flow Tubing Casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-APl (CORR) Press. 24-HOUR RATE 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. Form 10-407 Rev. 07-01-80 Submit In Duplicate 29. Geologic Markers 30. Formation Tests Measured True Vertical Include interval tested, pressure data, all fluids Marker Name Depth Depth recovered and gravity, GOR, and time of each phase. Sag River 10246' 8658' Shublik 'A' 10304' 8701' Shublik 'B' 10395' 8760' Shublik 'C' 10413' 8770' Top of Sadlerochit 10435' 8782' 31. List of Attachments Summary of Daily Drilling Reports, Surveys 32. I herebYsigned cert){yo that the~._forego, i~g. is true~~//~"--~- and correct to the best of my knowledge ~--?i,'/'/~/ Jam/e'"'C;~;~ri~l¥~/'-J Title Engineering Supervisor Date ~ 1~-25Ai 97-230 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No. / Approval No. INSTRUCTIONS GENERAL: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. ITEM 1: Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. ITEM 5.' Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. ITEM 16 AND 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. ITEM 21: Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). ITEM 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 27.' Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, Other-explain. ITEM 28: If no cores taken, indicate 'none'. Form 10-407 Rev. 07-01-80 Facility PB R Pad Progress Report Well R-25A Page 1 Rig Date 11 February 98 Date/Time 24 Dec 97 25 Dec 97 26 Dec 97 27 Dec 97 28 Dec 97 29 Dec 97 30 Dec 97 ~4:00-18:00 18:00-18:30 18:30-06:00 06:00-06:30 06:30-09:30 09:30-13:30 13:30-16:00 16:00-18:00 18:00-18:30 18:30-19:30 19:30-21:30 21:30-22:30 22:30-01:00 01:00-02:00 02:00-06:00 06:00-06:30 06:30-14:00 14:00-20:00 20:00-22:00 22:00-22:30 22:30-23:00 23:00-06:00 06:00-06:30 06:30-16:00 16:00-17:00 17:00-18:00 18:00-18:30 18:30-22:30 22:30-00:00 00:00-00:30 00:30-04:30 04:30-06:00 06:00-06:30 06:30-11:45 11:45-12:00 12:00-18:00 18:00-18:30 18:30-20:30 20:30-00:30 00:30-01:00 01:00-02:00 02:00-02:30 02:30-04:30 04:30-06:00 06:00-06:30 06:30-07:30 07:30-10:00 10:00-16:00 16:00-18:00 18:00-18:30 18:30-02:30 02:30-03:30 03:30-06:00 06:00-09:00 Duration 4 hr 1/2 hr 11-1/2 hr 1/2 hr 3 hr 4 hr 2-1/2 hr 2 hr 1/2 hr 1 hr 2hr 1 hr 2-1/2 hr 1 hr 4 hr 1/2 hr 7-1/2 hr 6 hr 2 hr 1/2 hr 1/2 hr 7 hr 1/2 hr 9-1/2 hr lhr 1 hr 1/2 hr 4 hr 1-1/2 hr 1/2 hr 4 hr 1-1/2 hr 1/2 hr 5-1/4 hr 1/4 hr 6 hr 1/2 hr 2 hr 4 hr 1/2 hr 1 hr 1/2 hr 2 hr 1-1/2 hr 1/2 hr 1 hr 2-1/2 hr 6 hr 2 hr 1/2 hr 8hr 1 hr 2-1/2 hr 3 hr Activity Rig moved 20.00 % Held safety meeting Rig moved 70.00 % Held safety meeting Rig moved 95.00 % Rig waited · Other delays Rig moved 100.00 % Fill pits with Seawater Held safety meeting Fill pits with Seawater Removed Hanger plug Installed Hanger plug Removed Xmas tree Installed Spacer spool Installed BOP stack Held safety meeting Installed BOP stack Tested BOP stack Retrieved Hanger plug Installed Wear bushing Made up BHA no. 1 Singled in drill pipe to 3000.0 ft Held safety meeting Singled in drill pipe to 6500.0 ft Tested Kelly Singled in drill pipe to 7000.0 ft Held safety meeting Singled in drill pipe to 9969.0 ft Milled Tailpipe assembly at 9969.0 ft Singled in drill pipe to 10310.0 ft Circulated at 10310.0 ft Pulled out of hole to 7500.0 ft Held safety meeting Pulled out of hole to 22.0 ft Pulled BHA Rigged up sub-surface equipment - Downhole equipment Held safety meeting Serviced Downhole equipment R.I.H. to 10265.0 ft Set downhole equipment (wireline) Pulled out of hole to -0.0 ft Made up BHA no. 2 R.I.H. to 3530.0 ft Pulled out of hole to 1500.0 ft Held safety meeting Pulled out of hole to 36.0 ft Serviced Circulating sub R.I.H. to 10250.0 ft Milled Liner at 10251.0 ft Held safety meeting Milled Liner at 10257.0 ft Functioned Circulating sub Pulled out of hole to 6000.0 ft Pulled out of hole to 36.0 ft Facility PB R Pad Progress Report Well R-25A Rig Page Date 2 11 February 98 Date/Time 31 Dec 97 01 Jan 98 02 Jan 98 03 Jan 98 04 Jan 98 05 Jan 98 09:00-09:30 09:30-10:30 10:30-18:00 18:00-18:30 18:30-19:30 19:30-20:30 20:30-23:00 23:00-00:30 00:30-06:00 06:00-06:30 06:30-07:00 07:00-07:30 07:30-09:00 09:00-17:00 17:00-18:00 18:00-18:30 18:30-06:00 06:00-06:30 06:30-16:30 16:30-17:00 17:00-17:30 17:30-18:00 18:00-18:30 18:30-06:00 06:00-06:30 06:30-18:00 18:00-18:30 18:30-19:30 19:30-20:00 20:00-20:30 20:30-06:00 06:00-06:30 06:30-15:30 t5:30-17:00 17:00-18:00 18:00-18:30 18:30-01:30 01:30-03:30 03:30-04:00 04:00-06:00 06:00-06:30 06:30-08:00 08:00-08:30 08:30-10:00 10:00-16:00 16:00-18:00 18:00-18:30 18:30-19:00 19:00-01:30 01:30-02:00 02:00-02:30 02:30-04:00 04:00-04:15 04:15-05:30 Duration 1/2 hr 1 hr 7-1/2 hr 1/2 hr 1 hr 1 hr 2-1/2 hr 1-1/2 hr 5-1/2 hr 1/2 hr 1/2 hr 1/2 hr 1-1/2 hr 8 hr 1 hr 1/2 hr 11-1/2 hr 1/2 hr 10 hr 1/2 hr 1/2 hr 1/2 hr 1/2 hr 11-1/2 hr 1/2 hr 11-1/2 hr 1/2 hr 1 hr 1/2 hr 1/2 hr 9-1/2 hr 1/2 hr 9 hr 1-1/2 hr 1 hr 1/2 hr 7 hr 2hr 1/2 hr 2 hr 1/2 hr 1-1/2 hr 1/2 hr 1-1/2 hr 6 hr 2hr 1/2 hr 1/2 hr 6-1/2 hr 1/2 hr 1/2 hr 1-1/2 hr 1/4 hr 1-1/4 hr Activity Pulled BHA Made up BHA no. 3 R.I.H. to 9000.0 ft Held safety meeting R.I.H. to 10255.0 ft Reamed to 10257.0 ft Milled Liner at 10265.0 ft Circulated at 10265.0 ft Pulled out of hole to 500.0 ft Held safety meeting Pulled out of hole to 36.0 ft Pulled BHA Made up BHA no. 4 R.I.H. to 10200.0 ft Reamed to 10265.0 ft Held safety meeting Drilled to 10415.0 ft Held safety meeting Drilled to 10629.0 ft Pulled out of hole to 10250.0 ft R.I.H. to 10629.0 ft Drilled to 10634.0 ft Held safety meeting Drilled to 11014.0 ft Held safety meeting Drilled to 11428.0 ft Held safety meeting Circulated at 11428.0 ft Pulled out of hole to 10300.0 ft R.I.H. to 11428.0 ft Drilled to 11780.0 ft Held safety meeting Drilled to 12034.0 ft Circulated at 12034.0 ft Pulled out of hole to 10200.0 ft Held safety meeting Pulled out of hole to 185.0 ft Pulled BHA Retrieved Wear bushing Tested BOP stack Held safety meeting Tested BOP stack Installed Wear bushing Made up BHA no. 5 R.I.H. to 10235.0 ft Tested M.W.D. tool - Via string Held safety meeting Tested M.W.D. tool - Via string Pulled out of hole to 300.0 ft Tested M.W.D. tool - Via string Pulled BHA Made up BHA no. 6 Tested M.W.D. tool - Via string R.I.H. to 3678.0 ft Facility PB R Pad Progress Report Well R-25A Page Rig Date 3 11 February 98 Date/Time 06 Jan 98 07 Jan 98 08 Jan 98 09 Jan 98 10 Jan 98 05:30-06:00 06:00-06:30 06:30-09:30 09:30-10:00 10:00-11:00 11:00-18:00 18:00-18:30 18:30-06:00 06:00-06:30 06:30-10:30 10:30-12:00 12:00-13:30 13:30-15:00 15:00-17:30 17:30-18:00 18:00-18:30 18:30-03:00 03:00-05:00 05:00-05:30 05:30-06:00 06:00-06:30 06:30-15:30 15:30-18:00 18:00-21:00 21:00-22:00 22:00-22:30 22:30-00:00 00:00-01:00 01:00-06:00 06:00-06:30 06:30-08:30 08:30-11:15 11:15-12:00 12:00-13:00 13:00-18:00 18:00-18:15 18:15-20:30 20:30-23:30 23:30-01:00 01:00-06:00 06:00-06:30 06:30-08:30 08:30-09:30 09:30-11:00 11:00-14:00 14:00-22:00 22:00-22:30 22:30-23:00 23:00-03:30 03:30-05:00 05:00-06:00 06:00-10:00 10:00-11:30 11:30-15:30 Duration 1/2 hr 1/2 hr 3 hr 1/2 hr 1 hr 7 hr 1/2 hr 11-1/2 hr 1/2 hr 4 hr 1-1/2 hr 1-1/2 hr 1-1/2 hr 2-1/2 hr 1/2 hr 1/2 hr 8-1/2 hr 2 hr 1/2 hr 1/2 hr 1/2 hr 9 hr 2-1/2 hr 3 hr 1 hr 1/2 hr 1-1/2 hr 1 hr 5 hr 1/2 hr 2 hr 2-3/4 hr 3/4 hr 1 hr 5 hr 1/4 hr 2-1/4 hr 3 hr 1-1/2 hr 5 hr 1/2 hr 2 hr 1 hr 1-1/2 hr 3 hr 8 hr 1/2 hr 1/2 hr 4-1/2 hr 1-1/2 hr lhr 4hr 1-1/2 hr 4 hr Activity Tested M.W.D. tool - Via string Held safety meeting R.I.H. to 10248.0 ft Functioned M.W.D. tool R.I.H. to 12034.0 ft Drilled to 12380.0 ft Held safety meeting Drilled to 12955.0 ft Held safety meeting Drilled to 13115.0 ft Circulated at 13115.0 ft Pulled out of hole to 10250.0 ft R.I.H. to 13115.0 ft Circulated at 13115.0 ft Pulled out of hole to 13071.0 ft Held safety meeting Pulled out of hole to 178.0 ft Pulled BHA Rigged down Drillstfing handling equipment Rigged up sub-surface equipment - Formation logs Held safety meeting R.I.H. to 9992.0 ft R.I.H. to 9992.0 ft Pulled out of hole to -0.0 ft R.I.H. to 9992.0 ft Circulated at 9992.0 ft R.I.H. to 9992.0 ft Pulled out of hole to -0.0 ft Pulled out of hole to 103.0 ft Held safety meeting Rigged up sub-surface equipment - Downhole equipment R.I.H. to 5061.0 ft Circulated at 5061.0 ft Serviced Lines / Cables R.I.H. to 9992.0 ft Held safety meeting Ran logs on tubulars Ran logs on tubulars Conducted electric cable operations Pulled out of hole to 103.0 ft Held safety meeting Pulled out of hole to -0.0 ft Rigged down sub-surface equipment - Formation logs Rigged up Casing handling equipment Laid down 65.0 ft of Liner Ran Liner to 3152.0 ft (3-1/2in OD) Circulated at 3152.0 ft Rigged up Drillstring handling equipment Ran Drillpipe to 3053.0 ft (2-1/16in OD) Circulated at 3152.0 ft Ran Drillpipe in stands to 4500.0 ft Ran Drillpipe in stands to 10250.0 ft (cont...) Circulated at 10250.0 ft Ran Drillpipe in stands to 12737.0 ft Facility PB R Pad Progress Report Well R-25A Page Rig Date 4 11 February 98 Date/Time 11 Jan 98 12 Jan 98 13 Jan 98 15:30-16:30 16:30-18:00 18:00-19:00 19:00-01:30 01:30-02:30 02:30-05:00 05:00-06:00 06:00-07:00 07:00-10:30 10:30-12:00 12:00-15:00 15:00-20:30 20:30-21:00 21:00-23:30 23:30-01:00 01:00-02:00 21:30-06:00 06:00-06:30 06:30-09:00 09:00-13:30 13:30-16:00 16:00-17:00 17:00-22:00 22:00-02:00 Duration 1 hr 1-1/2 hr 1 hr 6-1/2 hr 1 hr 2-1/2 hr 1 hr 1 hr 3-1/2 hr 1-1/2 hr 3 hr 5-1/2 hr 1/2 hr 2-1/2 hr 1-1/2 hr 1 hr 8-1/2 hr 1/2 hr 2-1/2 hr 4-1/2 hr 2-1/2 hr 1 hr 5 hr 4 hr Activity Worked toolstring at 12737.0 ft Pulled Drillpipe in stands to 11237.0 ft Circulated at 11237.0 ft Ran Drillpipe in stands to 13050.0 ft Worked stuck pipe at 13050.0 ft Batch mixed slurry - 50.000 bbl Displaced slurry - 47.300 bbl Displaced slurry - 47.300 bbl (cont...) Circulated at 12936.0 ft Pulled Drillpipe in stands to 9865.0 ft Circulated at 9865.0 ft Pulled Drillpipe in stands to 2115.0 ft Washed to 2100.0 ft Pulled Drillpipe in stands to -0.0 ft Serviced Mud pumps Performed cement integrity test Pulled Drillpipe in stands to 6000.0 ft Held safety meeting Pulled out of hole to 1583.0 ft Rigged down sub-surface equipment - Gun assembly Freeze protect well - 85.000 bbl of Diesel Installed Accessories Removed BOP stack Installed Surface tree SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 1 SHARED SERVICES DRILLING PBU / R-25A 500292227801 NORTH SLOPE BOROUGH COMPUTATION DATE: 1/15/98 DATE OF SURVEY: 010698 MWD SURVEY JOB NUMBER: AKMW80056 KELLY BUSHING ELEV. = 44.85 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 10222.83 8639.48 8594.63 36 37 N 62.09 W .00 2276.64N 4324.82W 4873.45 10250.00 8661.32 8616.47 36 22 N 62.14 W .96 2284.20N 4339.10W 4889.57 10258.01 8667.63 8622.79 39 34 N 63.60 W 41.49 2286.44N 4343.49W 4894.48 10291.77 8692.72 8647.87 44 26 N 68.76 W 17.67 2295.51N 4364.16W 4916.81 10324.13 8715.04 8670.19 48 20 N 72.83 W 15.10 2303.19N 4386.28W 4939.63 10356.38 8736.10 8691.25 50 8 N 76.42 W 10.11 2309.66N 4409.83W 4963.01 10388.19 8755.65 8710.80 54 0 N 75.48 W 12.36 2315.75N 4434.16W 4986.86 10420.21 8773.92 8729.07 56 26 N 77.35 W 9.00 2321.92N 4459.72W 5011.79 10452.11 8791.67 8746.82 55 56 N 77.45 W 1.59 2327.70N 4485.59W 5036.78 10484.18 8809.42 8764.57 56 49 N 78.25 W 3.44 2333.32N 4511.69W 5061.88 10516.38 8825.79 8780.95 62 2 N 78.20 W 16.21 2338.98N 4538.83W 5087.87 10548.40 8840.45 8795.60 63 28 N 78.52 W 4.58 2344.72N 4566.71W 5114.54 10580.64 8854.32 8809.47 65 32 N 80.03 W 7.66 2350.13N 4595.29W 5141.63 10611.11 8866.03 8821.18 69 16 N 79.21 W 12.52 2355.20N 4622.96W 5167.76 10642.22 8875.82 8830.97 74 0 N 79.02 W 15.18 2360.78N 4651.95W 5195.28 10675.33 8883.71 8838.86 78 26 N 78.88 W 13.42 2366.94N 4683.50W 5225.29 10707.51 8888.57 8843.72 84 10 N 78.79 W 17.84 2373.10N 4714.70W 5254.98 10739.45 8890.20 8845.35 89 56 N 78.17 W 18.14 2379.47N 4745.94W 5284.83 10771.80 8889.21 8844.36 93 34 N 74.73 W 15.45 2387.04N 4777.36W 5315.48 10803.77 8886.99 8842.14 94 24 N 70.07 W 14.77 2396.68N 4807.75W 5346.35 10835.94 8884.56 8839.71 94 16 N 66.06 W 12.44 2408.66N 4837.50W 5377.91 10867.85 8881.72 8836.87 95 55 N 63.43 W 9.70 2422.22N 4866.25W 5409.47 10900.22 8877.65 8832.80 98 31 N 59.03 W 15.71 2437.66N 4894.39W 5441.51 10931.95 8872.97 8828.12 98 25 N 54.32 W 14.69 2454.90N 4920.60W 5472.88 10962.84 8868.75 8823.90 97 17 N 52.65 W 6.49 2473.11N 4945.19W 5503.39 10994.88 8864.69 8819.84 97 17 N 52.77 W .37 2492.36N 4970.48W 5535.04 11091.27 8853.40 8808.55 96 9 N 53.48 W 1.38 2549.80N 5047.05W 5630.42 11187.68 8842.93 8798.08 96 18 N 53.44 W .16 2606.86N 5124.05W 5725.98 11283.13 8829.47 8784.63 99 53 N 49.05 W 5.90 2665.98N 5197.72W 5819.80 11313.81 8823.57 8778.72 ** 18 N 47.61 W 9.11 2685.99N 5220.21W 5849.49 11345.95 8816.83 8771.98 ** 55 N 46.76 W 2.84 2707.35N 5243.26W 5880.36 11377.60 8810.34 8765.49 ** 43 N 46.33 W 1.46 2728.65N 5265.75W 5910.73 11409.19 8804.78 8759.93 98 33 N 47.02 W 10.29 2749.99N 5288.37W 5941.23 11441.20 8800.31 8755.46 97 30 N 48.32 W 5.17 2771.33N 5311.80W 5972.42 11473.23 8796.63 8751.78 95 41 N 49.14 W 6.20 2792.31N 5335.71W 6003.83 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 2 SHARED SERVICES DRILLING PBU / R-25A 500292227801 NORTH SLOPE BOROUGH COMPUTATION DATE: 1/15/98 DATE OF SURVEY: 010698 MWD SURVEY JOB NUMBER: AKMW80056 KELLY BUSHING ELEV. = 44.85 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 11505.28 8794.58 8749.73 91 37 N 52.28 W 16.03 2812.56N 5360.46W 6035.55 11537.27 8794.58 8749.73 88 22 N 52.37 W 10.19 2832.11N 5385.77W 6067.38 11569.23 8796.17 8751.33 85 54 N 55.26 W 11.89 2850.95N 5411.53W 6099.22 11601.34 8798.73 8753.88 84 58 N 55.34 W 2.88 2869.17N 5437.84W 6131.19 11632.63 8801.31 8756.46 85 32 N 56.34 W 3.65 2886.68N 5463.65W 6162.35 11664.59 8803.39 8758.54 87 0 N 58.22 W 7.46 2903.91N 5490.47W 6194.24 11696.67 8804.89 8760.04 87 38 N 58.96 W 3.03 2920.61N 5517.82W 6226.28 11727.60 8806.22 8761.37 87 25 N 59.31 W 1.34 2936.47N 5544.35W 6257.17 11759.70 8807.60 8762.75 87 39 N 57.14 W 6.79 2953.35N 5571.60W 6289.24 11791.97 8809.04 8764.20 87 11 N 54.13 W 9.43 2971.55N 5598.21W 6321.44 11824.14 8810.76 8765.91 86 41 N 52.21 W 6.16 2990.80N 5623.92W 6353.45 11856.48 8812.83 8767.98 85 56 N 50.46 W 5.89 3010.96N 5649.12W 6385.51 11888.51 8815.43 8770.58 84 46 N 49.26 W 5.22 3031.54N 5673.52W 6417.12 11920.72 8818.65 8773.80 83 44 N 50.62 W 5.28 3052.16N 5698.05W 6448.85 11952.89 8822.70 8777.85 81 47 N 52.31 W 7.99 3072.04N 5723.01W 6480.56 11985.23 8827.65 8782.80 80 35 N 53.30 W 4.76 3091.36N 5748.46W 6512.40 12008.90 8831.75 8786.90 79 26 N 56.45 W 13.98 3104.77N 5767.53W 6535.67 12041.02 8838.15 8793.30 77 34 N 57.65 W 6.90 3121.89N 5793.93W 6567.14 12073.41 8845.12 8800.27 77 35 N 56.14 W 4.55 3139.17N 5820.43W 6598.76 12105.97 8851.53 8806.68 79 40 N 57.04 W 6.97 3156.74N 5847.07W 6630.67 12137.94 8856.32 8811.47 83 5 N 54.06 W 14.12 3174.62N 5873.13W 6662.24 12170.02 8859.93 8815.08 83 59 N 55.64 W 5.63 3192.97N 5899.19W 6694.07 12202.13 8863.49 8818.64 83 15 N 57.04 W 4.89 3210.65N 5925.75W 6725.97 12233.26 8867.32 8822.47 82 36 N 57.14 W 2.11 3227.44N 5951.68W 6756.86 12265.07 8871.41 8826.56 82 37 N 56.71 W 1.34 3244.66N 5978.12W 6788.40 12296.92 8874.94 8830.09 84 37 N 55.48 W 7.33 3262.31N 6004.38W 6820.03 12328.86 8877.30 8832.45 86 55 N 54.95 W 7.39 3280.48N 6030.54W 6851.84 12360.61 8878.03 8833.18 90 25 N 53.51 W 11.95 3299.03N 6056.29W 6883.51 12392.55 8877.05 8832.20 93 4 N 53.03 W 8.43 3318.12N 6081.87W 6915.33 12424.33 8874.48 8829.63 96 13 N 54.38 W 10.75 3336.87N 6107.40W 6946.92 12456.17 8870.70 8825.85 97 24 N 53.42 W 4.76 3355.49N 6132.94W 6978.45 12519.83 8862.79 8817.95 96 52 N 53.69 W .93 3393.02N 6183.75W 7041.44 12551.67 8859.14 8814.29 96 18 N 52.17 W 5.06 3412.08N 6208.99W 7072.94 12583.50 8856.04 8811.19 94 52 N 54.52 W 8.63 3430.99N 6234.40W 7104.52 12614.96 8853.33 8808.48 95 1 N 55.47 W 3.05 3448.97N 6260.07W 7135.82 SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 3 SHARED SERVICES DRILLING PBU / R-25A 500292227801 NORTH SLOPE BOROUGH COMPUTATION DATE: 1/15/98 DATE OF SURVEY: 010698 MWD SURVEY JOB NUMBER: AKMW80056 KELLY BUSHING ELEV. = 44.85 FT. OPERATOR: BP EXPLORATION TRUE SUB-SEA COURS COURSE DLS TOTAL MEASD VERTICAL VERTICAL INCLN DIRECTION RECTANGULAR COORDINATES VERT. DEPTH DEPTH DEPTH DG MN DEGREES DG/100 NORTH/SOUTH EAST/WEST SECT. 12646.78 8850.11 8805.26 96 35 N 58.47 W 10.60 3466.22N 6286.61W 7167.47 12710.36 8841.28 8796.43 99 22 N 58.69 W 4.40 3499.04N 6340.33W 7230.42 12743.42 8835.85 8791.00 99 30 N 59.10 W 1.28 3515.89N 6368.25W 7263.03 12838.67 8819.94 8775.09 99 43 N 58.98 W .26 3564.20N 6448.79W 7356.92 12934.29 8803.70 8758.85 99 49 N 59.07 W .13 3612.70N 6529.58W 7451.13 13030.05 8787.23 8742.38 99 59 N 60.18 W 1.16 3660.40N 6610.96W 7545.42 13062.31 8781.48 8736.63 ** 33 N 60.07 W 1.77 3676.21N 6638.48W 7577.14 13115.00 8771.42 8726.57 ** 27 N 59.89 W 1.76 3702.08N 6683.27W 7628.82 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. HORIZONTAL DISPLACEMENT = 7640.12 FEET AT NORTH 61 DEG. 0 MIN. WEST AT MD = 13115 VERTICAL SECTION RELATIVE TO WELL HEAD VERTICAL SECTION COMPUTED ALONG 302.10 DEG. TIE-IN SURVEY AT 10,222.83' MD WINDOW POINT AT 10,258.01' MD PROJECTED SURVEY AT 13,115.00' MD SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA PAGE 4 SHARED SERVICES DRILLING PBU / R-25A 500292227801 NORTH SLOPE BOROUGH COMPUTATION DATE: 1/15/98 DATE OF SURVEY: 010698 JOB NUMBER: AKMW80056 KELLY BUSHING ELEV. = 44.85 FT. OPERATOR: BP EXPLORATION INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES MD-TVD VERTICAL DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 10222.83 8639.48 8594.63 11222.83 8838.66 8793.81 12222.83 8865.98 8821.13 13115.00 8771.42 8726.57 2276.64 N 4324.82 W 2628.03 N 5151.78 W 3221.83 N 5942.99 W 3702.08 N 6683.27 W 1583.35 2384.17 800.82 3356.85 972.68 4343.58 986.73 THE CALCULATION PROCEDURES ARE BASED ON THE USE OF THREE-DIMENSION MINIMUM CURVATURE METHOD. SPERRY-SUN DRILLING SERVICES ANCHORAGE ALASKA 'PAGE 5 SHARED SERVICES DRILLING PBU / R-25A 500292227801 NORTH SLOPE BOROUGH COMPUTATION DATE: 1/15/98 DATE OF SURVEY: 010698 JOB NUMBER: AKMW80056 KELLY BUSHING ELEV. = 44.85 FT. OPERATOR: BP EXPLORATION INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA TOTAL MEASD VERTICAL VERTICAL RECTANGULAR COORDINATES MD-TVD VERTICAL DEPTH DEPTH DEPTH NORTH/SOUTH EAST/WEST DIFFERENCE CORRECTION 10222.83 8639.48 8594.63 10229.27 8644.85 8600.00 10370.40 8744.85 8700.00 10402.83 8764.14 8719.29 2276.64 N 4324.82 W 2278.43 N 4327.94 W 2312.29 N 4420.46 W 2318.65 N 4445.73 W 1583.35 1584.42 1.08 1625.55 41.13 1638.69 13.14 THE CALCULATION PROCEDURES USE A LINEAR INTERPOLATION BETWEEN THE NEAREST 20 FOOT MD (FROM MINIMUM CURVATURE) POINTS 3/1 3/98 GeoQuest 500 W. International Airport Road Anchorage, AK 99518-1199 ATTN: Sherrie NO. 11914 Company: Alaska Oil & Gas Cons Corem Attn: Lori Taylor 3001 Porcupine Drive Anchorage, AK 99501 Field: Prudhoe Bay (Open Hole) LIS Well Job # Log Description Date BL RF Sepia Tape R-05A ~ ~ ~ ~ 98119 SLIM ACCESS AIT/PEX/BHC 980201 1 R-05A 98119 SLIM ACCESS Arr 980201 I 1 R-05A 98119 SLIM ACCESS NEUTRON DENSITY 980201 I 1 R-05A 9811 9 SLIM ACCESS BHC 980201 I 1 R-05A 9811 9 CEMENT MAP LOG 980203 I 1 R-25A ~ ~ .~' 98047 SLIM ACCESS AIT/PEX/BHC 980108 1 R-25A 98047 SLIM ACCESS ArT 9801 08 1 1 R-25A 98047 SLIM ACCESS NEUTRON DENSITY 9801 08 1 1 R-25A 98047 SUM ACCESS BHC i..,-,,.~¢..~ !% ~,~ 980108 1 1 ------- q'l - 9Scs PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska)Inc. Petrotectnical Data Center MB3-3 900 E. Benson Blvd. Anchorage, Alaska 99519-6612 Date Delivered: Schlumberger GeoQuest 500 W. International Airport Road Anchorage, Alaska 99618~1199 Received by:... . ~t L3.. ~ .... / r'l I:::! I L_ I_ I IM CS S I:::: !::! W I I-- I::: S WELL LOG TRANSMITTAL To: RE: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.' Lori Taylor 3001 Porcupine Drive Anchorage, Alaska 99501 MWD Formation Evaluation Logs R-25A, AK-MM-80056 February 18, 1998 The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this of this transmittal letter to the attention of: Jim Galvin. Sperry-Sun Drilling Services. 5631 Silverado Way, #G, Anchorage, AK 99518 R-25A: 2" x 5" MD Gamma Ray Logs: 50-029-22278-01 2" x 5" TVD Gamma Ray Logs' 50-029-22278-01 1 Blueline 1 Rev Folded Sepia 1 Blueline 1 Rev Folded Sepia 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 ° (907) 563-3256 · Fax (907) 563-7252 A Dresser Industries, Inc. Company 0 I~t I I_1_1N 13 WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.' Lori Taylor 3001 Porcupine Dr. Anchorage, Alaska 99501 February 18, 1998 RE: MWD Formation Evaluation Logs R-25A, AK-MM-80056 The technical dam listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention of: Jim Galvin. Sperry-Sun Drilling Services. 5631 Silverado Way, #G, Anchorage, AK 99518 1 LDWG formatted Disc with verification listing. APl#: 50-029-22278-01. 5631 Silverado Way, Suite G · Anchorage, Alaska 99518 ° (907) 563-3256 · Fax (907) 563-7252 A Dresser Industries, Inc. Company GeoQuest 500 W. International Airport Road Anchorage, AK 99518-1199 ATTN: Sherrle NO. 11758 Company: Field: Alaska Oil & Gas Cons Comm Attn: Lori Taylor 3001 Porcupine Drive Anchorage, AK 99501 Prudhoe Bay (Cased Hole) 1/28/98 Well Job # Log Description Date BL RF Sepia LIS Tape 35' ~;~ N-11A · ~ ~c~. '~Oc~ 98020 RST-SIGMA 980108 I I 1 N-11 A · GAS LIFT SURVEY 9 801 09 I 1 C-34 e PRODUCTION PROFILE 980111 I 1 C-38 ~ LEAK DETECTION LOG 9801 10 I 1 D-14A t GR/CCL CORRELATION 980120 I 1 H-08. PERFORATING RECORD 9 712 27 I 1 H- 33, PERFORATING RECORD/GR-CCL 980105 I 1 ,, J-10 · PERFORATING RECORD 980106 ,1 1 M-09A * PRODUCTION FLUID SAMPLER 980112 1 1 M-09A * PERFORATE RECORD 980115 1 1 N- 14 · CHEMICAL cu'n'ER 980118 1 1 R-05 ,- WHIPSTOCK SETTING RECORD 980111 I 1 R-25A ~ ORIENTED WHIPSTOCK SET 971228 1 1 S-22B '/--' PERFORATING RECORD 971229 1 1 , , W-22 * FULL SUITE PRODUCTION LOG 980116 1 1 X-6 / INJECT. PROF. W/WARMBACKS 980118 1 1 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotectnical Data Center MB3-3 900 E. Benson Blvd. Anchorage, Alaska 99519-6612 Date Delivered: Schlumberger GeoQuest 500 W. International Airport Road Anchorage, Alaska 99618-1199 Received by:~~ TONY KNOWLE$, GOVEt~NOFt ALAS~& OIL AND GAS CONSERVATION COMMISSION 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 December 19. 1997 James Smith Senior Drilling Engineer, Acting ARCO Alaska. Inc. P O Box 196612 Anchorage, AK 99519-6612 Re; Prudhoe Bay Unit R-25Ai ARCO Alaska. Inc. Permit No. 97-230 Sur. Loc. l I55'NSL. 1817'EWL, Sec. 32, T12N, R13E, UM Btmnhole Loc. 4704'NSL, 128'WEL, Sec. 36, T12N, R12E, UM Dear Mr. Smith: Enclosed is the approved application for permit to redrill the above referenced ,,,,,ell. The permit to redrill does not exempt you from obtaining additional permits required by laxv from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. The blowout prevention equipment (BOPE) must be tested in accordance xvith 20 AAC 25.035; and the mechanical integrity, (MI) of the injection wells must be demonstrated under 20 AAC 25.412 and 20 25.030(g)(3). Sufficient notice (approximately 24 hours) of the MI test before operation, and of the BOPE test pertbrmed before drilling below the surface casing shoe, must be given so that a representative of the Commission ma5, witness the tests. Notice may be given by contacting the Commission petroleum field inspector on the North Slope pager at 659-3607. -- Chairman '%~,~ BY ORDER OF THE COMMISSION dlf/Enclosures cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASK, :,-,IL AND GAS CONSERVATION C0,~MISSION PERMIT TO DRILL 20/~,C 25,005 Revised: 12/15/97 la. Type of work [] Drill [] Redrill lb. Type of well [] Exploratory [] Stratigraphic Test I'-I Development Oil [] Re-Entry [] Deepen [] Service [] Development Gas []Single Zone [] Multiple Zone 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exploration (Alaska) Inc. Plan RKB = 44.4' Prudhoe Bay Field / Prudhoe 3. Address 6. Property Designation Bay Pool P.O. Box 196612, Anchorage, Alaska 99519-6612 ADL 028257 4. Location of well at surface 7. Unit or Property Name 11. Type Bond (See 20 AAC 25.025) 1155' NSL, 1817' EWL, SEC. 32, T12N, R13E, UM Prudhoe B.a...y Unit At top of productive interval 8. Well Number Number 2S100302630-277 3654' NSL, 3003' WEL, SEC. 31, T12N,. R13E,. UM R-25Ai At total depth 9. Approximate spud date Amount $200,000.00 4704' NSL, 128' WEL, SEC. 36, T12N, R12E, UM 12/26/97 12. Distance to nearest property line113. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) ADL 028279, 128'I R-20Ai, 224' at 11,600' MD 2560 13081' MD / 8715' TVD 16. To be completed for deviated wells 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} Kick Off Depth 10255' MD Maximum Hole Angle 96° Maximum surface 3300 psig, At total depth (TVD) 8800' / 4390 psig 18. Casing Program Specifications Setting Depth Size Top Bottom Quantity of Cement ,, Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 4-1/2" 3-1/2" 9.8# L-80 ST-L 3137' 9944' 8348' 13081' 8715' 137 cu ft Class 'G' 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured 10965 feet Plugs (measured) 10' cement cap on top of 20/40 carbolite at 10522' (5/96) true vertical 9249 feet Effective depth: measured 10522 feet Junk (measured) true vertical 8879 feet Casing Length Size Cemented M D TVD Structural Conductor 47' 20" 11 yds Arctic Set 110' 110' Surface 2917' 13-3/8" 2150 cuff AS III, 401 cu ft AS I, 281 cu ft 'G' 2950' 2835' Intermediate 10208' 9-5/8" 1710 cu ft Class 'D', 245 cu ft 'G' 10241' 8656' Production Liner 986' 7" 261 cu ft Class 'G' 9979' - 10965' 8446' - 9250' RECEIVED Perforation depth' measured 10259'-10309', 10415'-10505', 10515'-10575' DEC !5 1997 true vertical 8665' - 8922' (three intervals) Alaska 0il & Gas Cons. C0mmissi0r 20. Attachments [] Filing Fee [] Property Plat [] BOP Sketch [] Diverter Sketch [] Drilling Pro~gr~rage [] Drilling Fluid Program [] Time vs Depth PIct [] Refraction Analysis [] Seabed Report [] 20 AAC 25.050 Requirements .... , Contact Engineer Name/Number: Chris Brown, 564-5582 Prepared By Name/Number: Terrie Hubble, 564-4628 ?)the truTnd correct to the best of my knowledge 21. I hereby certify th foregoing is Signed ~r~ James Smit ,, Title Senior Drilling Engineer, Acting Dat L', Commission Use Only Perm,~ Number I APl Number I Approval Date See cover letter ~'7-' ~ ~I 50-029-22278-01, /~.~ -. j ~-..- ~ for other requirements Conditions of Approval: Samples Required []Yes l~l No Mud Log Required []Yes ,[~ No Hydrogen Sulfide Measures ~Yes [] No Directional Survey Required J~Yes [] No Required Working Pressure for BOPE []2M; []3M; 1~]5M; []10M; [] 15M Other: 0nglnal Signed By · W. Johnston by order of David Approved By Commissioner the commission Date/¢,~ Form 10-401 Rev. 12-01-85 Submit In Triplicate I Well Name: [ R-25ai Sidetrack Plan Summary Type of Redrill (producer or injector): I Lnjector Surface Location: 1155' FSL, 1817' FWL, S32, T12N, R13E, UM Target Location: 3654' FSL, 3003' FEL, S31, T12N, R13E, UM Bottom Hole Location: 4704' FSL, 128' FEL, S36, T12N, R12E, UM I AFE Number: 14P0991 [ I Estimated Start Date: I 12/26/97 I MD: ] 13,081 I ling: [Doyon 16 I [Operating days to complete: 126 [ TVD: I 8715 I ~CB ~4.4 Well Design (conventional, slimhole, etc.): [Through tubing horizontal sidetrack IObjective: [ Sidetrack the R-25i well to the proposed Sag/Zone 4 target accessing new I injection zones Mud Pro~ram Whipstock Mud Properties: Solids Free 6 % Quikdriln Density Funnel LSR LSRV API FL ph (PPG) Viscosity YP 8.6-8.9 45-65 10-18 >35,000 NC 8.5-9.0 Production Mud Properties: Solids Free 6 % Quikdriln Density Viscosity LSR LSRV API FL pH (PPG) YP 8.6-8.9 45-65 10-18 >35,000 NC 8.5-9.0 Directional I KOP: [+10,255'MD (estimated) IMaximum Hole Angle: Close Approach Well: +96° R-20ai. 224' separation at 11,600' Anchorage R-25ai Sidetrack Drming Permit Page 2/5 Formation Markers Formation Tops MD TVD (SS) 10255' 8621' Window kick off point TSag 10251' 8618' TShublik 10306' 8660' Tsad 10821' 8745' TD 13081' 8715' End of target polygon - 3-1/2" liner point HOT 8995' Not reached Casing Tubing Program Hole Size Csg WUFt Grade Conn Length Top Btm MD/TVDss MD/TVDss 4.5" 3.5" 9.8 LB0 ST-L 3137' 9944'/8348' 13081'/8715' 8.681" 7"/ 26/ LB0/ NSCC/ 9824'/ 29'/-22'/ 9853 '/8276'/ 5-1/2" 17 LB0 LTC 130' 9853'/8276' 9983/8379' NOTE: As this is a TTRD well, the 7"/5-1/2" tubing described above is already in place, and will not be disturbed during the sidetrack. Cement Lead Cement Tail Cement Casing/Liner Sx / Wt / Yield Sx / Wt / Yield Comments 3.5" None 191/15.8 / 1.15 Class G: 40% excess; TOC at liner top; Pump time = 4+ hrs; Volume assumptions: Gauge hole + designated excess; 80' shoe joints; TOC as listed. Logging Program ILogs: 4.5" Hole Cased Hole: MWD GR. Platform express across reservoir interval (available ,r~-~. _ ~ IV I D CBL across liner Well Control ~a,~a oil & 6as cons. c0mmissi¢ AnO0ra~e Well control equipment consisting of 5,000 psi W.P. pipe rams, blind rams, and annular preventer will be installed and will be capable of handling maximum potential surface pressures. Diverter, B OPE and mud fluid system schematics on file with AOGCC. R-25ai Sidetrack Drming Permit Page 3/5 Hazards This is a TTRD well, and since the annular volume of the well is small, a close watch must be kept on trip volumes, and tripping speeds to avoid surging and swabbing of the well. The main production target for this well is the Sag River, although the Ivishak will be penetrated briefly. For this reason, known hazards for the Ivishak are also listed below. Sag River The Sag River can sometimes have very low reservoir pressure in this area (as low as 6. lppg or 2700-2900psi). Despite this, the pad data sheet indicates that only one well (R-36i) has experienced major lost circulation in this production interval, most other drilling wells experiencing only minor losses. The area does have some faults which, if present, are likely to be conductive, and this well does cross to 10-20' faults while in the target polygon, hence losses should be expected. Productive zone LCM will be employed to combat this. On the R-36i well, returns were also not obtained while cementing the casing in place. Losses should be cured before attempting to run casing. Risk of differential sticking is expected based on offset wells, but should be mitigated by the use of Quikdriln drilling fluid which is solids free. Ivishak Differential sticking has occurred frequently in the Ivishak at 9183' TVD. Once the sticking occurs it is very strong and has created difficulty in freeing up the drillstring. On R-35A, the sticking was successfully alleviated by pumping a 20bbl pill of Liquid Casing, OM Seal, and B arafibre and reducing pump rate to 5bpm (to reduce ECD). Note however that these wells were drilled using LSND mud; since the TTRD wells will employ solids free Quikdriln, this should mitigate the risk of sticking. High torque has been reported on several wells in the production hole, hence some open hole lubrication may be required. The pad data sheet incorporates R, F and J pad wells whose bottom hole location are all in the same area. Wells from all three pads have experienced problems with bridges, tight hole, differential sticking, and packing off in the production interval. This has caused numerous incidents of stuck logs, casing, and drillstring. Be alert while driling this interval and employ frequent reaming if any sign of unstable hole is seen. Disposal All cuttings should be hauled to the ball mill at CC-2A for disposal. Haul all drilling and completion fluids and other Class II wastes to CC-2A for injection. Haul all Class I wastes to Pad 3 for disposal. Vector Magnetics Following DEAP anti-collision scanning it has been found that there is a nearby well which cannot easily obtain exemption to allow drill by. For this reason, a Vector Magnetics conductor will be set in the R-20i well allowing the close approach tolerance between the R-25ai candidate and the R-20i well to be much more accurately determined. The drilling assembly will make use of the Vector Magnetics tool over the approximately 800' interval required to ensure that any potential collisions are avoided. R-25ai Sidetrack Drming Permit Page 4/5 Operational Summary Pre-Rig Work: . , , . , NOTE: If any problems with the 9-5/8" packoff are observed during pre-rig work, contact the wellhead manufacturer to initiate repairs. If repairs are not possible, the TTRD sidetrack will be halted, and an alternative sidetrack method used. This well is an injector, and the existing perforations will be thermally fractured. This means that the perforations will likely drink most or all of a standard cement plug. For this reason, it is recommended that a 20ppb aggregate cement plug is pumped until some squeeze pressure is obtained. If tubing and annulus have not recently (_<1 month) been tested R/U wireline and retrieve SSSV. Set tubing plug in SWN nipple. Perform MIT on tubing and annulus to 4,000psi. Retrieve tubing plug and POOH. RIH and drift tubing to plug back TD with drift to ensure whipstock (3.635" OD) pass through of minimum 3.8" OD. R/U CT unit and RIH to PBTD at 10,522' (elm) with cementing BHA. Spot a balanced cement plug w/20ppb aggregate (crushed brick) from base of the well to 10,200' (open perforations from 10,259' to 10,522'), pumping against a closed choke until 1,000psi squeeze pressure is seen. Attempt to squeeze 5bbls of cement to perforations. Run back in hole to _+10,298', circulating out excess cement with contaminant to obtain the required TOC at +10,298'. POOH. NOTE: If necessary to prevent loss of cement, excess hydrostatic overbalance may be removed from the cement column by partial circulation of the well to a diesel cushion. Pick up under-reamer sized for 7" 26# casing, and under-ream interval from 10,222' to 10,298' to ensure good casing for whipstock to set in. Tag TOC as required for AOGCC representative and POOH. M/U 4.5" OD milling assembly and RIH. Mill out SWN nipple at 9,972' to 4.5". NOTE: The under-reamer will be working across a perforated interval and hence care must be taken not to damage or lose any parts of the under-reamer arms R/U electric line. Set Baker through tubing whipstock oriented highside with top of whipstock at 10,252'. This will put the top of the whipstock 3' MD below the base of the Kingak formation which is known to be troublesome. Do not set the top of the whipstock any higher than 10,252'. Please have a Baker representative on site when setting the whipstock. R/D electric line. RECEIVED DEC 15 18,9~ Alaska 0il & Gas Cons. Cornmissior~ Anchorage R-25ai Sidetrack Dnning Permit Page 5/5 If cement plugback or whipstock setting problems are encountered, please contact SSD Ops Drilling Engineer immediately for possible alternative procedures. 6. RIH with window milling assembly, tag whipstock/liner and mill out/dress window to 4.5". Do not mill out more formation than is needed to bury the window dressing mill. . Circulate kill weight fluid and freeze protect with diesel (estimated BHP at 8800'TVDSS is 3,500psi - 7.6ppg EMW) to depth of +2,200'. 8. Set and test BPV. Remove wellhouse and flowlines, level pad, dig out cellar Rig Work: Prior to rig move, test 9-5/8" packoff to 5,000psi, and function lock down screws (FMC wellhead representative to do this). If any problems with the 9-5/8" packoff are observed, contact the wellhead manufacturer to initiate repairs. If repairs are not possible, the TTRD sidetrack will be halted, and an alternative sidetrack method used. 2. MIRU. Pull BPV and set/test TWCV. ND tree, NU BOP's and test same. Pull TWCV. RIH with 4.5" drilling assembly (circulate out freeze protection) and tag TD of new hole. Displace well to Quikdriln drilling fluid, and drill 4.5" hole section to TD of 13,081' as per directional plan. NOTE: Vector Magnetics close approach system will be used to ensure that any potential collisions with the nearby R-20i well are avoided. 4. RIH with DPC logs and make logging run across open hole section from window to TD. o M/U and run 3,137' of 3-1/2" solid L80 ST-L liner to hang off depth in 5-1/2" tubing of +9,944'. Cement liner in place with inner string cementing assembly, and set liner hanger/packer. Circulate out excess cement, and displace well to clean seawater. POOH. Test liner to 4,000psi 6. RIH with DPC CBL log and make logging pass over the liner to determine condition of cement job. POOH. 7. RIH with DPC perforating guns and perforate 50' of liner. 8. RIH with DP and circulate freeze protection to +2,200'MD. 9. Set and test TWCV, ND BOP, NU tree. Pull TWCV and set/test BPV. RDMO. {-25i Wp1 ~rtlcal Section KB 297.07 44.40 MD Inc. Azl. 10255.00 36.32 297.86 10281,78 39.00 297.80 10300.00 44.44 296.96 10306.23 46.30 296.71 10400.00 74.34 294.08 10436,09 85.14 293,32 10500.00 85.14 293.32 10600.00 85.14 293.32 10700.00 85.14 293.32 1~"~'-0.00 85.14 293.32 ~21.27 85.14 293.32 10900.00 85.14 293.32 11000.00 85.14 293.32 11100.00 85.14 293.32 11200.00 85.14 293.32 11216.98 85.14 293.32 11300.00 86.18 294.62 11400.00 87.42 296.19 11500.00 88.67 297.75 11600.00 89.92 299.31 11606.10 90.00 299.41 11700.00 90.40 299.41 11800.00 90.82 299.41 11900.00 91.24 299.41 12000.00 91.66 299.41 ::~0.00 92.08 299.41 ~00.00 92.51 299.4! 12300.00 92.93 299.41 12400.00 93.35 299.41 12500.00 93.77 299,41 12600.00 94.19 299.41 12700.00 94.62 299,41 12800.00 95.04 299.41 12900,00 95.46 299.41 13000,00 95.88 299,41 13080.72 96.22 299.41 7/7/97 10:39 AM TVDss TVDrkb Rec~ Coordinates Grid Coordlnates DLS Ve~ical No~hlng Eastlng Eastlng No~hlng deg/100ff Section 8620.83 8665.23 2286.88n 4341.44w 631074.92 5979845.66 0.00 4906.55 8642.02 8686.42 2294.52n 4355.91w 631060.32 5979853.03 10.00 4922.91 8655.62 8700.02 2300.09n 4366.68w 631049.45 5979858.40 30.00 4935.03 8660.00 8704.40 2302.09n 4370.64w 631045.46 5979860.33 30.00 4939.47 8705.97 8750.37 2336.44n 4443.60w 630971.88 5979893.33 30.00 5020.07 8712.39 8756.79 2350.69n 4476.07w 630939.16 5979906.98 30.00 5055.47 8717.80 8762.20 2375.90n 4534.55w 630880.23 5979931.12 0.00 5119.02 8726.27 8770.67 2415.35n 4626.06w 630788.02 5979968.88 0.00 5218.45 8734.73 8779.13 2454.80n 4717.57w 630695.82 5980006.64 0.00 5317.89 8743.20 8787.60 2494.25n 4809.07w 630603.61 5980044.41 0.00 5417.32 8745.00 8789.40 2502.64n 4828.53w 630584.00 5980052.44 0.00 5438.47 8751.67 8796.07 2533.70n 4900.58w 630511.40 5980082.17 0.00 5516.76 8760.13 8804.53 2573.15n 4992.09w 630419.19 5980119.93 0.00 5616.20 8768.60 8813.00 2612.60n 5083.59w 630326.99 5980157.69 0.00 5715.63 8777.06 8821.46 2652.05n 5175.10w 630234.78 5980195.46 0.00 5815.07 8778.50 8822.90 2658.75n 5190.64w 630219.12 5980201.87 0.00 5831.95 8784.79 8829.19 2692.39n 5266.27w 630142.89 5980234.11 2.00 5914.61 8790.37 8834.77 2735.22n 5356.46w 630051.94 5980275.28 2.00 6014.40 8793.77 8838.17 2780.55n 5445.52w 629962.07 5980318.97 2.00 6114.34 8795.00 8839.40 2828.31n 5533.36w 629873.37 5980365.11 2.00 6214.30 8795.00 8839.40 2831.31n 5538.68w 629868.00 5980368.00 2.00 6220.39 8794.68 8839.08 2877.41n 5620.48w 629785.38 5980412.60 0.42 6314.21 8793.62 8838.02 2928.52n 5707.59w 629697.39 5980460.09 0.42 6414.12 8791.82 8836.22 2975.61n 5794.69w 629609.42 5980507.58 0.42 6514.02 8789.29 8833.69 3024.70n 5881.77w 629521.45 5980555.06 0.42 6613.91 8786.02 8830.42 3073.78n 5968.84w 629433.51 5980602.53 0,42 6713.77 ' 8782,01 8826,41 3122.85n 6055.88w 629345.59 5980649.99 0.42 6813,61 8777,27 8821.67 3171.90n 6142,90w .629257.69 5980697.43 0.42 6913.41 8771.80 8816,20 3220.93n 6229,88w 629169,83 5980744.85 0.42 7013,18 8765,58 8809.98 3269.94h 6316.82w 629082.01 5980792.26 0.42 7112.90 8758.64 8803.04 3318.92n 6403,73w 628994.23 5980839.64 0.42 7212.58 8750.96 8795.36' 3367,88n 6490.58w 628906.50 5980886.99 0.42 7312.20 8742.54 8786.94 3416,81n 6577.39w 628818.82 5980934.32 0.42 7411,76 8733.39 8777.79 3465.71n 6664.14w 628731.20 5980981,61 0.42 7511.26 8723.51 8767.91 3514.57n 6750.82w 628643.64 5981028.87 0.42 7610.68 8715.00 8759.40 3553.99n 6820.75w 628573.00 5981067.00 0.42 7690.89 Page I of 1 Comment KOP; 3 feet into Sag River Shublik T Sad R-25i Mid R-25i T2 Shared.__ Services Drillingt Structure: PB R Pad Well: R-25i Field: Prudhoe [3ay Location: Alaska -7200 -7000 -6800 -6600 -6400 -6200 -6000 -5800 -5600 -5400 -5200 -5000 -4800 -4600 -4400 -4200 -4000 4000 3800 3600 3400 3200 II 3000 .~ 2800 0 2600 Z 24O0 2200 0 0 ~ 2000 o · · ~ 1800 o ~ 1 600 I I I I I I TARG£LDA'LA I, / I I I , 4000 Scale 1 ' 200.00 E a st - > I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I - 7200 - 7000 - 6800 - 6600 - 6400 - 6200 - 6000 -5800 - 5600 -5400 - 5200 - 5000 - 4800 - 4600 -4400 -4200 - 4000 3800 3600 3400 5200 zooo II 2800 Z 0 2600 + 2400 - 2200 2000 1800 1600 8200 .. ~ 8400 8600 8800 9000 92OO II V 9400 9600 Shared Services Drillit-tg Structure: PB R Pod Well: R-25i Field · Prudhoe Bay LocaTion ' Alaska WELL PROFILE DATA .... Po;hi .... bid I~c D~t ~ Nc, dh Tie o~ KOP10255 36.32297.868665 2287 -4341 0.00 10282 39.00297.808686 2295 -435~ 10.00 nd of Build 10436 85.14293.328757 2351 -4476 30.00 :nd of H.~ld 11217 ~5.14293.328823 2659 --5191 O.0C, r~r~e~ 11606 90,00299,4t 8839 2831 -5532 2.00 ~ Target 13081 96.22299.41 8759 3~4 -6821 0.42 PRELl M I NARY ~~°~ ¢ - 9800 i i i i I i i i i ~ i i i i i I I i i i i i i i , I i ' i' i i i I i i 4600 4800 5000 5200 5400 5600 5800 6000 6200 6400 6600 6800 7000 7200 7400 7600 7800 8000 Scale 1 ' 200.00 Vertical Section on 297.07 azimuth wlth reference 0.00 N, 0.00 W from 25i ELEV 51 $5~ WELLHEAD: 11" - 5M FMC -' BF. ELEV = 18.5' ACTUATOR: OTIS .... (OTIS)(5.062" ID) HRQ 8o, BTC IKOP @ 1500' Max Angle @37° 7", 26#, L-80, NSCC Tbg TUBING ID: 6.276' CAPACITY: 0.0383 BBL/FT % · 5-1/2' "SWS' NIPPLE I I (P^,KE,) (4.562' ,D) I9~ I 9-5/8'x 5-1/2' 5-1/2', 17 #/fi, L-80, FB-1 .Perm Packer 5-1/2' 'SWS' NIPPLE TA,U~,PE I I (P^.~ER) (4.~2',0) J9~7 .-jL 5-1/2' 'SWN' NIPPLE Top of Baker (Parker) (4.455' ID) i 9972 7' Uner Hanger I 9979 I P9acker NSCC PERFORATION SUMMARY_~ LOG: SWS CBT REF (31t ,4 SIZE SPF "INTERVAL == 10' cement cap on top J 10522' 3~/~/S(~Z' )10259'. 10309' Open i/°f 20/40 carb°lite ~-1~8~i ~2 6 10415'-10505' Open ~~ -~ -.-:-:-:-:-:-:-:-:-:-:-:.:-:.:.:-:.:.:-:.:.: ilii:: i::iiiiii?:i::iiiii!i::!::i:: i::!::?:?: FB-1 Perm iiiiiiil iliiiiiiiiiiiiii~:iiiiiii iiiiiiii ~-{J~L~[SWS NIPPLEI losgs, iiiiiiii l',iiiiiiiiiiil! i i (Parker) (3.813"1 ........................ ....................... ....................... ...-...........-.................................. PBTD I 10884 I ~.. ~#,~, ~-,o, I ,o,~ DATE REV. BY COMMENTS PRUDHOE BAY UNIT 9/15/92 W.R.R. NEW COMPLETION 11-17-92 J. Eckstein Revised-Add Sag River WELL: R-25 (32-31-12-13) 11-23-92 C. Robertson Initial Ivishak 5/14/96 GSN Sandback/Cement Cap BP/ARCO PBU DRILLING 'i: :,: - ::: 'i .. ::; : i ~ ,:.'! .- :: :-. :- .:?: '-~' : !: : -~: : :: : : .-!:;-.- :~ ~:.:' :: "' .: :..-'.,:.: ii.' '~i...': i: :';: :. · ! : : ! !::::. ... ::'i : · - '::;.-- 7- '.'i' ::. .. i'.~ :.!: .. :~,!:~ '.: :. : : :. ~ ~i: :: i~.~¢../:~' i ~i. . i' . . .. ~ -'.~.:.;?~ .~: i:-.: · . :: TREE: 7' o 5M CIW WELLHEAD: 11" - 5M FMC ACTUATOR: OTIS 13-3/8', 68#, L- I 2950 I 80, BTC KOP @ 1500' Max Angle @37 7', 26#, L-80, NSCC Tbg TUBING ID: 6.276" - CAPACITY: 0.0383 BBIJFT R-25i ..... e-rig Status KB. ELEV = 51.5' BF~ E~L~= 18.5' SSSV LANDING NIPPLE I 2112 I (OTIS)(5.962" ID) HRQ i Freeze 2200 I protection 5-1/2', 17 #/ft, L-80, ~ TAILPIPE Top of Baker I 7" Liner Hanger I 9979 Baker 9-5/8" finer top packer 9-5/8', 47# NSCC [ ~0241 J Whipstock top set 10,252' (kick off at 10,255') Cement plug top 10,298' 10' cement cap on topI 10522' of 20/40 carbolite I PERFORATION SUMMARY' REF LOG~ SWS CBT 9/14/92, I 6I 10259'-10309' 10415'-10505' 10515'-10575' 7', 26 #Iff, L-80, OPEN/SQZ'D Sqz Sqz .sqz PBTD ~ ~ 5-1/2" "SWS' NIPPLE (PARKER) (4.562' ID) 9-5/8'x 5-1/2' BAKER FB-1 Perm Packer 5-1/2' 'SWS" NIPPLE (PARKER) (4.562" ID) 5-1/2' "SWN' NIPPLE (4.5' ID - milled out) 5-1/2' WLEG ELMD Miffed window kicked off at 10,255' Squeezed perforations 10,298-10,309' 10,415-10,505' 10,515-10,575' 9894 9967 9983 9986 7"x 4-1/2' BAKER FBol Perm (Pm'ker) ($.81~' I ,~.)1/2' SWN NIPP~ [ 1~' J (P~er) (3.7~' I ~1~' W~G [ E~D .1 1~ J .- . . . DATE REV. BY COMMENTS 9/15/92 W.R.R. NEW COMPLETION 11-17-92 J. Ecksteln Revised-Add Sag River 11-23-92 C. Robertson Initial Ivishak 5/14/96 GSN Sandback/Cement Cap PRUDHOE BAY UNIT WELL: R-25 (32-31-12-13) BP/ARCO PBU DRILLING :--' ;¢-:.-G / : ;~ ::. '.! ~'. :' i'.?,':: -- '~ 5:;;- 1~.~ · .:. -. 2-' . i. -. . . TREE: 7" - 5M ClW WELLHEAD: 11" - 5M FMC ACTUATOR: OTIS 13-3/8", 68#, L- J 2950 I 80, BTC R-25ai Proposed Completion KB. E~V = 51.5' BF. ELEV = 18.5' (OTIS)(5.962" ID) HRQ KOP @ 1500' I Max Angle @37° 7", 26g, L-80, NSCC Tbg TUBING ID: 6.276" CAPACITY: 0.0383 BBL/FT 5-1/2', 17 #/ft, L-80, ~ TAILPIPE 5-1/2" x 3-1/2' Uner: hanger/packer: Top of Baker [ 7' Liner Hanger 9979 Baker 9-5/8" liner top packer 9'5/8" 47# I 10241 J NSCC , Whipstock to[ 10,252' (kick off at 10,255') Cement plug top 10,298' 10' cement cap on top of 20/40 carbolite 10522' J ?', 26 #/ft, L-80, NSCC PBTD 10884 J~ 5-1/2' "SWS" NIPPLE I e~ I (PARKER) (4.562" ID) 9-5/8'x 5-1/2' BAKER I ,,,~,,4 I FB-1 Perm Packer 5-1/2' 'SWS" NIPPLE (4.562' ID) ~ 5-1/2' "SWN' NIPPLE ID-milled out) ~ WLEG ~ 3-1/2', 9.6~f, L80, ST-L liner Squeezed perforations 10,298-10,309' 10,415-10,505' 10,515-10,575' 4-1/2' TD at 13,081' 7"x 4-1/2' BAKER i 10565, j FB-1 Perm [ ! (Parker) (3.813" I 4D-)1/2" SWN NIPPLE (Parker) (3.725'1 I 10600' J DATE 9/15/92 REV. BY W.R.R. COMMENTS NEW COMPLETION 11-17-92 J. Eckstein Revised-Add Sag River Perfs 11-23-92 C.Roberston Initial Ivishak Perfs 5-14-96 GSN Sandback/Cement Cap 11-20-97 C.Brown TTRD Sidetrack PRUDHOE BAY UNIT WELL: R-25ai APl NO: 50-029-22278-01 BP/ARCO PBU DRILLING .. · · APPROVED spe -sun illQ *lqlf,.I-INO '(~nV]='i Shared Services Drilling Dr uest Scale: linch = 500ft Eastings -7000 -6500 -6000 -5500 -5000 -4500 -4000 3500 - 8825.ss - 3500 8': 12490.85ft MD, 8884.05ff TVD ! /' ~ /Continue DIr · 11~(~O0'1100ft: 12381.77fl MD, 8894.40ft TVD I 76.49lt MD, 8791.871t 'I'VD 3000 3000 C~ : 11642.661l MD. a779.4011TVD C: .C: o 2500 - 2500 -7000 -6500 -6000 -5500 -5000 -4500 -4000 ScaPe: linch = 50Oft Eastings Reference is True North I Proposal Date for R-25AI Wp6 , SURFACE LOCATION REFERENCE i PLOT DATE: 12/0~J97 :,o,.on,.tcoo,d,.,..; ICr--,,d,,; ,~k~nmJ~l~Od~'~Vefl~aJ : w~IW~ RKBElevatl.',n: 25.5Ofl Rig(EST) ; i .. , ~e.~o, W.,(CaE) /,.-' .., I · ! Coordlnat, System: NAD27 .,Mask,, Sial, Plane~, I ~o2,oe~' : zo., 4, us Foot I Vef~al 8e~lon Odgln: ~a$.~! N,4:~0.04 W ~'*"""u.,., ~' A=,,.. w,--,o.,.. "~' ~" s..,..,v'""~'t ~..t. i ' Proposal Target'Summary ' ' I[l~wl.lx) .16.147 2~7.640 14693..47 329.'[.21 N 43¢.0.(N W 49[.T. I1~ 10J.10.lXl .19.28.! 2V.T..4'/9 X7~3.22 2.1().~.?.4 N 43X2.11 W 49.17.4g I(I.(XX) I 0~.19.6.1 ~).372 '~?6.A~.~ l~#714..11 2M~.IJO N 4~.T5.? I W 5 lX4..1:1 14.(k~X) liN(Il.Il2 WI.IXK) .1(].4.tl~t8 IIW¼.40 2449.64 N 4X'/8.?.1 W ~.14.~ 14.(xx) IIWX].IA 11)1.47l 30.4.927 1fl4fk',.2.i 2497.38 N 4V44.~ W ~.'il5.#7 14.(XNI l¢-25AI 'FI XXG0.(X) XtJO4.40 244~LfH N. 4878.7.1 W .~0X(XXX).tX) N. ¢,~(I.~3.~.IX) I': 114~.21 1(11.471 .111.I.v21 1~7v.1,71 27v.1.1q N 5.1.4.1,76 W (~ll9.9,~ (l.O~XJ R-2.fAI 'l'~ XT.15.(X) 877~.40 2~77.31~ N, i 1177h,49 7~.2v.1 .~0.~,Y2.4 #791.#7 2~5.~.45 N .457~,&'1W 62~4.x2 x.(xx] R-25AI 'I'3 88~).(X) 81~04.40 3305.12 N, (~059.47 W 5()~]x34.(x) N, 629330.(X) E ~250 -- I 12.1111.77 12274.7t) ~i.(xxi?~'2Y.1 .105.v2~'lli5'YZ~ IIKy4.40]Ixl~4'43 3305.12.1242'67 NN 605v.475~?.1'27 WW 68K9.4767l~3'27 I(I,(XXlII'iXX] R-25AI T4 ~720.¢X) ~764.40 3'/3 I.X~ N, ~')5{).X5 W 59~ 1250.(X) N. 62X740.IX) 12. 12490.K,'1 100.908 .10.4.1(06 1181~1.(l.4 .13t~X.6.1 N 6147..13 W ¢,Q97.67 Io.(xXl ' L J 1.112.1,13 IlX),908 .1ll5.806 8764.40 .173l.~8 N 66.~l,8,~ W 7617.22 ...................... ...... ....................... .... ......... ...... ..... o............. ....... ......o... ................ .........-..-..... .... .. .................. · ....... TJ~ ~) '~ KOP: Start DIr O 10,000'/100It: 10290.0011 MD, 8693.57fl TVD To[at Depth: 13123.131l MD, 8764.40ll TVD ................... ...................... .............. '~ ................... ~tt~.~1J~. ~ll~}.v~ ........... .~,~i~,~.~ ~ ;' r ;;'~ ..................................... ~.,~ ~ ~ ..,.~ ·. · ._~.~4,'~'~ ....................... fo~.m~,,~ 1~~ '"'~...,-_- 1120 12100.00 }z/ . 2 7/8 Uner ft ~D 8884.05f1TVD f~ MD,'8894.40ft TVD 00) ...................... HOlT ~ Start'Dtr @ 10.000°/100It: 12274.70ft MD, 8884.43ft TVD '" 9250 -- I I I I I I I 4750 5250 5750 6250 6750 7250 7750 Scale: linch = 500ft Vertical Section Section Azimuth: 302,096° (True North) H I 2 7 9 4 2 o,~,'~,,~7 oo~z~,~ VENDOR ALASKAST 14.O0 DATE INVOICE / CREDIT MEMO DESCRIPTION GROSS DISCOUNT NET 092297 CK0922970 100. O0 100. O0 HANDLING INST' s/h tee~'i hubble x 4&28 : · WELL PERMIT CHECKLIST COMPANY FIELD & POOL : ~?/~, ,/.__~ ~ INIT CLASS WELL NAME /¢'/¢/_..¢'' ,~' ~_~'/~...' PROGRAM: exp [] dev [] redrll~ serv"'~wellbore seg E: ann. disposal para req [] GEOL AREA ',~ ?,,.-j UNIT# //4~'._¢,-% ON/OFF SHORE ADMINISTRATION APPR DATE ENGINEERING APPR DAT~E GEOLOGY 1. Permit fee attached ....................... 2. Lease number appropriate ................... 3. Unique well name and number .................. 4. Well located in a defined pool .................. 5. Well located proper distance from drilling unit boundary .... 6. Well located proper distance from other wells .......... 7. Sufficient acreage available in drilling unit ............ 8. If deviated, is wellbore plat included ............... 9. Operator only affected party ................... 10. Operator has appropriate bond in force ............. 11. Permit can be issued without conservation order ........ 12. Permit can be issued without administrative approval ...... 13. Can permit be approved before 15-day wait ........... REMARKS 14. Conductor string provided ................... Y N 15. Surface casing protects all known USDWs ........... Y N~ / r,,L 16. CMT vol adequate to circulate on conductor & surf csg ..... Y N 17. CMT vol adequate to tie-in long string to surf csg ........ 18. CMT will cover all known productive horizons .......... 19. Casing designs adequate for C, T, B & permafrost ....... 20. Adequate tankage or reserve pit ................. 21. If a re-drill, has a 10-403 for abandonment been approved... Y N 22. Adequate wellbore separation proposed ............. (~ N If diverter required, does it meet regulations .......... 23. Drilling fluid program schematic & equip list adequate ..... ~ N 24. 25. BOPEs, do they meet regulation ................ N 26. BOPE press rating appropriate; test to ~ .psig. (~ N 27. Choke manifold complies w/APl RP-53 (May 84) ........ ~ N 28. Work will occur without operation shutdown ........... '(_Y2 N 29. Is presence of H2S gas probable ................. (~) N ? 30. Permit can be issued w/o hydrogen sulfide measures ..... Y N ,~//,/ ) ,/,~ 31. Data presented on potential overpressure zones ....... y ~ /'L,',~. 32. Seismic analysis of shallow gas zones ............. Y//'N 33. Seabed condition survey (if off-shore) ............. //Y N 34. Contact name/phone for we.ekly.progress reports ...... // Y N lexploratory only] GEOLOGY: ENGINEERING' COMMISSION: JDH ~ DWJ ,,~ / RNC~ CO C.~' Comments/Instructions: HOW/Ijt - A:\FORMS\cheklist rev 09/97 Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. * ALASKA COMPUTING CENTER * ....... SCHLU~IBERGER ....... COMPANY NAlVlE : BP EXPLORATION (ALASKA) WELL NAME : R-25A FIELD NA~IE : PRUDHOE BAY BOROUGH : NORTH SLOPE STATE : A_bASKA API~ER : 500292227801 REFERENCE NO : 98047 M (] OFJL t LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 i.~19 PAGE: **** REEL HEADER **** SERVICE NAME : EDIT DATE : 98/03/10 ORIGIN · FLIC REEL NAME : 98047 CONTINUATION # : PREVIOUS REEL : COMMENT : B.P. EXPLORATION, R-25A, PRUDHOE BAY, API #50-029-22278-01 **** TAPE HEADER **** SERVICE NAME : EDIT DATE : 98/03/10 ORIGIN : FLIC TAPE NAME : 98047 CONTINUATION # : 1 PREVIOUS TAPE : COMMENT : B.P. EXPLORATION, R-25A, PRUDHOE BAY, API #50-029-22278-01 TAPE HEADER PRUDHOE BAY OPEN HOLE WIRELINE LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION RUN1 98047 KIRKBY R. GEESAMAN SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION(FT FROM MSL O) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING RECORD 1ST STRING 2ND STRING R-25A 500292227801 BP BXPLORATION (ALASKA) SCHLUMBERGER WELL SERVICES 9-MAR-98 RUN 2 RUN 3 32 12N 13E 1817 1155 51.50 50. O0 18.85 OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 4.500 7.000 10250.0 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 I~9 3RD STRING PRODUCTION REMARKS: STRING This file contains the LDWG edit for BP Exploration well R-25A. The well was logged with the SLim Access Platform Express/AIT/BHC. There was a main up pass and a repeat down pass. Depthshifting waived as per Steve Jones. The AIT/GR is the primary depth control for the well. $ $ PAGE: **** FILE HEADER **** FILE NAME : EDIT .001 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUMBER: 1 EDITED OPEN HOLE MAIN PASS Ail tool strings; Depth shifted and clipped curves; all runs merged; no cased hole data. DEPTH INCREMENT: 0.5000 FILE SUMMARY LDWG TOOL CODE START DEPTH PEX 13092.0 BHC 13084.0 AIT 13115.0 $ BASELINE CURVE FOR SHIFTS: NONE CURVE SHIFT DATA (MEASUREDDEPTH) BASELINE DEPTH $ MERGED DATA SOURCE LDWG TOOL CODE $ REMARKS: STOP DEPTH .......... 10265.0 10265.0 10290.0 .......... EQUIVALENT UNSHIFTED DEPTH .......... PEX BHC AIT RUN NO. PASS NO. FiERGE TOP MERGE BASE This file contains the clipped data for the Slim Access Array Induction Tool (AIT), Platform Express Litho Dentity (SDN), Compensated Neutron (CART), and Borehole Sonic (BCS) tools. The data in this file was acquired over the openhole section of the logging run. $ LIS Tape Verification Listing Schlumberger Alaska Computing Center PAGE: LIS FORMAT DATA ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE- 54EB ** TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 80 4 66 1 5 66 6 73 7 65 8 68 0.5 9 65 FT 11 66 12 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 0 ** SBT TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE ~ NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUMB SAMP ELEM CODE (HEX) DEPT FT 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 SP AIT MV 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 GR AIT GAPI 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 DT BHC US/F 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 AFIO AIT OH~M1209211 O0 000 O0 0 1 1 1 4 68 0000000000 AF20 AIT OHI~M1209211 O0 000 O0 0 1 1 1 4 68 0000000000 AF30 AIT 0Iff4~1209211 O0 000 O0 0 1 1 1 4 68 0000000000 AF60 AIT 0H~41209211 O0 000 O0 0 1 1 1 4 68 0000000000 AF90 AIT OPi~4M1209211 O0 000 O0 0 1 1 1 4 68 0000000000 DRHO SDN G/C3 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 PEF SDN BN/E 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 RHOB SDN G/C3 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 CALl SDN IN 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 NRAT CNT 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 NCNT CNT CPS 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 FCNT CNT CPS 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 CNTC CNT CPS 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 CFTC CNT CPS 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 CRAT CNT 1209211 O0 000 O0 0 1 1 1 4 68 0000000000 NPHI CNT PU-S 1209211 O0 000 O0 0 1 1 i 4 68 0000000000 LIS Tape Verification Listing Schlumberger Alaska Computing Center PAGE ** DATA ** DEPT. 13115. 000 SP.AIT -999.250 GR.AIT -999.250 DT. BHC AFiO.AIT 12. 757 AF20.AIT 12. 919 AF30.AIT 31 . 427 AF60.AIT AF90.AIT 39.836 DRHO.SDN -999.250 PEF. SDN -999.250 RHOB.SDN CALl . SDN 3. 796 NRAT. CNT - 999. 250 NCNT. CArT -999. 250 FCNT. CNT CNTC. CNT -999. 250 CFTC. CNT -999. 250 CRAT. CNT -999. 250 NPHI. CNT DEPT. 10265. 000 SP.AIT 22. 750 GR.AIT 85. 026 DT.BHC AFIO.AIT -999.250 AF20.AIT -999.250 AF30.AIT -999.250 AF60.AIT AFgO.AIT -999.250 DRHO.SDN 0.556 PEF. SDN 0.000 RHOB.SDN CAL1.SDN 4.762 NRAT. CNT 7.067 NCNT. CNT 1531.250 FCNT. CNT CNTC. CNT 1831.050 CFTC. CNT 223.800 CRAT. CNT 7.323 NPHI.CNT -999.250 48. 511 -999.250 -999.250 -999. 250 51.898 -999.250 2.229 216.667 58.514 ** END OF DATA ** **** FILE TRAILER **** FILE NAME : EDIT .001 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NAME : EDIT .002 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUMBER: 2 EDITED CASED HOLE MAIN PASS Depth shifted and clipped curves for open hole logs run into casing. PASS NUMBER: 1 DEPTH INCREMENT: 0.5000 FILE SUMMARY LDWG TOOL CODE START DEPTH STOP DEPTH CNT 10265.0 10020.0 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO~MAR-1998 PAGE: $ BASELINE CURVE FOR SHIFTS: NONE CURVE SHIFT DATA (MEASURED DEPTH) .......... EQUIVALENT UNSHIFTED DEPTH .......... BASELINE DEPTH CNT REMARKS: This file contains the clipped data for the Platform Express Compensated Neutron (CNT) Tool. The data in this file was acquired only over the cased hole section of this logging run. $ LIS FORMAT DATA ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 36 4 66 1 5 66 6 73 7 65 8 68 0.5 9 65 FT 11 66 28 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 1 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NLC¢~ ~ SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NDWiB SAMP ELEM CODE (HEX) DEPT FT 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 GR AIT GAPI 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 RTNR CNT 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 RCNT CNT CPS 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 RCFT CNT CPS 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 CNTC CNT CPS 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-p~R-1998 ~ 9 PAGE: NAME SERV UNIT SERVICE API API API API FILE NUM~ NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUM~ SAMP ELE~ CODE (HEX) CFTC CNT CPS 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 TNRA CNT 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 NPHI CNT PU-S 1209211 O0 000 O0 0 2 1 1 4 68 0000000000 ** DATA ** DEPT. 10265.000 GR.AIT 85.026 RTNR.CNT 7.067 RCNT. CNT RCFT. CNT 216.667 CNTC. CNT 1831.050 CFTC. ClVT 223.800 TNRA.CNT NPHI.CNT 58.514 DEPT. 10021.500 GR.AIT 50.509 RTNR.CNT 9.333 RCNT. CNT RCFT. CNT 166.667 CNTC. CNT 1763.410 CFTC. CNT 172.154 TNRA. CNT NPHI.CNT 72.192 1531.250 7.323 1555.556 8.890 ** END OF DATA ** **** FILE TRAILER **** FILE NAME : EDIT .002 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NAME : EDIT .003 SERVICE : FLIC VERSION : O01CO1 DATE · 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUMBER 3 RAW OPEN HOLE MAIN PASS Curves and log header data for each run and tool string in separate files; Tool String #1 fo Sadlerochit run presented first (primary depth control string used to depth shift the Sadler interval) followed by files for other main pass tool strings per run. RUN NUMBER: 1 TOOL STRING NUMBER: i LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 ~ :~19 PAGE: PASS NUMBER: 1 DEPTH INCREMENT: O. 5000 FILE SUP94ARY VENDOR TOOL CODE START DEPTH PEX 13140.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT) : TD LOGGER (FT) : TOP LOG INTERVAL (FT) : BOTTOM LOG INTERVAL (FT) : LOGGING SPEED (FPHR) : STOP DEPTH 10265.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE ......................... CNT SLIM ACCESS CNT LDT SLIM ACCESS LDT BHC SLIM ACCESS BHC AIT SLIM ACCESS AIT $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLERS CASING DEPTH (FT) : LOGGERS CASING DEPTH (FT) : BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH : FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF) : RESISTIVITY (OH~4) AT TEMPERATURE (DEGF) : MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT) : MUD FILTRATE AT (MT): MUD FILTRATE AT (BHT) : MUD CAKE AT (MT): MUD CAKE AT (BHT): NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): 8-JAN-98 8C0-609 2000 6-JAN-98 2100 8-JAN-98 13115.0 13115.0 10000.0 13115.0 1800.0 TOOL NUMBER CNT-S SLDT-A SSLT-AA SAIT-A 4.500 10250.0 10250.0 WATER BASED MUD 8.80 45.0 9.0 212.0 O. 136 65.0 O. 120 65.0 O. 180 65.0 THERMAL SANDSTONE 2.65 LIS Tape Verification Listing Schlumberger Alaska Computing Center PAGE: TOOL STANDOFF (IN): 1.0 REMARKS: THIS FILE CONTAINS THE RAW DATA FROM MAIN PASS LOGGED AT 0.5' SAMPLE RATES. *** RUN NUMBER 1 *** TWO 1/4" STANDOFFS ON ARRAY INDUCTION ONE TOOL TURNER ON DENSITY TWO STANDOFFS ON SONIC THIS LOG WAS DRILL PIPE CONVEYED TIED INTO SWS BHC LOG DATED 9-11-92 TAGGED TD WITH TOOLSTRING AND LOGGED UP AT CLIENT REQUEST RIG: DOYON 16 $ LIS FORMAT DATA ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE- 64EB ** TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 68 4 66 1 $ 66 6 73 7 65 8 68 0.5 9 65 FT 11 66 15 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 1 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE ~ ~ SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUMB SAMP ELEM CODE (HEX) DEPT FT 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 SP AIT MV 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 GR AIT GAPI 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 DT BHC US/F 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 DTCO BHC US/F 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 DRHO LDT G/C3 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 PEF LDT 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 .PIll19 pAGE: 9 NAME SERV UNIT SERVICE API API API API FILE NUM~ NUM~ SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD ~ SAMP ELEM CODE (HEX) RHOB LDT G/C3 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 DPHI LDT PU 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 CALI LDT IN 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 RTNR CNT 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 RCNT CNT CPS 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 RCFT CNT CPS 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 CNTC CNT CPS 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 CFTC CNT CPS 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 TNRA CNT 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 NPHI CNT PU-S 1209211 O0 000 O0 0 3 1 1 4 68 0000000000 ** DATA ** DEPT. 13140.000 SP.AIT -79.063 GR.AIT 67.328 DT.BHC 125.074 DTCO.BHC 125.074 DRHO.LDT 0.549 PEF. LDT 2.182 RHOB.LDT 2.399 DPHI.LDT 15.189 CALI.LDT 3.796 RTNR.CNT 3.333 RCNT. CNT 7500.000 RCFT. CNT 2250.000 CNTC. CNT 8554.086 CFTC. CNT 2324.080 T1VRA.CNT 3.407 NPHI.CNT 24.733 DEPT. 10265.000 SP.AIT 22.750 GR.AIT 85.026 DT. BHC 51.898 DTCO.BHC 51.898 DRHO.LDT 0.556 PEF. LDT 0.000 RHOB.LDT 2.229 DPHI.LDT 25.536 CALI.LDT 4.762 RTNR.CNT 7.067 RCNT. CNT 1531.250 RCFT. CNT 216.667 CNTC. CNT 1831.050 CFTC. CNT 223.800 TNRA.CNT 7.323 NPHI.CNT 58.514 ** END OF DATA ** **** FILE TRAILER **** FILE NAME : EDIT .003 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NAME : EDIT .004 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 ~-~9 PAGE: 10 FILE HEADER FILE NUMBER 4 RAW OPEN HOLEMAIN PASS Curves and log header data for each run and tool string in separate files; Tool String #1 fo Sadlerochit run presented first (primary depth control string used to depth shift the Sadler interval) followed by files for other main pass tool strings per run. RUN NUMBER: 1 TOOL STRING NUMBER: 1 PASS NUMBER: 1 DEPTH INCREMENT: 0.2500 FILE SUMMARY VENDOR TOOL CODE START DEPTH PEX 13140.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT) : TD LOGGER (FT) : TOP LOG INTERVAL (FT) : BOTTOM LOG INTERVAL (FT) : LOGGING SPEED (FPHR): STOP DEPTH .......... 10265.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE CNT SLIM ACCESS CNT LDT SLIM ACCESS LDT BHC SLIM ACCESS BHC AIT SLIM ACCESS AIT $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLERS CASING DEPTH (FT) : LOGGERS CASING DEPTH (FT) : BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF) : RESISTIVITY (OH~M) AT TEMPERATURE (DEGF) : MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT) : MUD FILTRATE AT (MT): MUD FILTRATE AT (BHT) : MUD CAKE AT (MT): 8-JAN-98 8C0-609 2000 6-JAN-98 2100 8-JAN-98 13115.0 13115.0 10000.0 13115.0 1800.0 TOOL NUMBER CNT-S SLDT-A SSLT-AA SAIT-A 4.500 10250.0 10250.0 WATER BASED MUD 8.80 45.0 9.0 212.0 O. 136 65.0 O. 120 65.0 0.180 65.0 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 £-~i9 PAGE: 11 MUD CAKE AT (BHT) : NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): THERMAL SANDSTONE 2.65 TOOL STANDOFF (IN): 1.0 REMARKS: THIS FILE CONTAINS THE RAW DATA FROM MAIN PASS LOGGED AT 0.25' SAMPLE RATES. *** RUN NTJFiBER 1 *** TWO 1/4" STANDOFFS ON ARRAY INDUCTION ONE TOOL TURNER ON DENSITY TWO STANDOFFS ON SONIC THIS LOG WAS DRILL PIPE CONVEYED TIED INTO SWS BHC LOG DATED 9-11-92 TAGGED TD WITH TOOLSTRING AND LOGGED UP AT CLIENT REQUEST RIG: DOYON 16 $ LIS FORMAT DATA ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** TYPE REPR CODE VALUE .............................. 1 66 0 2 66 0 3 73 24 4 66 1 5 66 6 73 7 65 8 68 0.25 9 65 FT 11 66 42 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 1 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 PAGE: 12 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NUM~ NUM~ SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUM~ SAMP ELEM CODE (HEX) DEPT FT 1209211 AFiO AIT 0H~941209211 AF20 AIT 0H~941209211 AF30 AIT 0H~1209211 AF60 AIT 0H~941209211 AF90 AIT 0H~4~1209211 O0 000 O0 0 4 1 1 4 68 0000000000 O0 000 O0 0 4 1 1 4 68 0000000000 O0 000 O0 0 4 1 1 4 68 0000000000 O0 000 O0 0 4 1 1 4 68 0000000000 O0 000 O0 0 4 1 1 4 68 0000000000 O0 000 O0 0 4 1 1 4 68 0000000000 ** DATA ** DEPT. 13140.000 AFIO.AIT 20.850 AF60.AIT 337.547 AF90.AIT 69.585 AF20.AIT 22.427 AF30.AIT 54. 427 ** END OF DATA ** **** FILE TRAILER **** FILE NAME : EDIT .004 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NAME : EDIT .005 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUMBER 5 RAW OPEN HOLE REPEAT PASSES Curves and log header data for each pass, tool string, and run in separate files. RUN NUMBER: 1 TOOL STRING NUMBER: 1 PASS NUMBER: 2 DEPTH INCRb~4ENT: 0.5000 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 11-:19 PAGE: 13 FILE SUFk~ARY VENDOR TOOL CODE START DEPTH PEX 13140.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT) : TD LOGGER (FT) : TOP LOG INTERVAL (FT) : BOTTOM LOG INTERVAL (FT) : LOGGING SPEED (FPHR) : STOP DEPTH .......... 10265.0 8-JAN-98 8C0-609 2000 6-JAN-98 2100 8-JAN-98 13115.0 13115.0 10000.0 13115.0 1800.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE CNT SLIM ACCESS CNT LDT SLIM ACCESS LDT BHC SLIM ACCESS BHC AIT SLIM ACCESS AIT $ TOOL NUMBER CNT-S SLDT-A SSLT-AA SAIT-A BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLERS CASING DEPTH (FT) : LOGGERS CASING DEPTH (FT) : 4.500 10250.0 10250.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF) : RESISTIVITY (OH~4) AT TE~IPERATURE (DEGF) : MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT) : MUD FILTRATE AT (MT): MUD FILTRATE AT (BHT) : MUD CAKE AT (MT): MUD CAKE AT (BHT) : WATER BASED MUD 8.80 45.0 9.0 212.0 O. 136 65.0 O. 120 65.0 0.180 65.0 NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN) '. THERMAL SANDSTONE 2.65 TOOL STANDOFF (IN): REMARKS: THIS FILE CONTAINS THE RAW DATA FROM THE REPEAT PASS LIS Tape Verification Listing Schlumberger Alaska Computing Center PAGE: 14 LOGGED AT 0.5' SAMPLE RATES. *** RUN NUMBER 1 *** TWO 1/4" STANDOFFS ON ARRAY INDUCTION ONE TOOL TURNER ON DENSITY TWO STANDOFFS ON SONIC THIS LOG WAS DRILL PIPE CONVEYED TIED INTO SWS BHC LOG DATED 9-11-92 TAGGED TD WITH TOOLSTRINGANDLOGGED UP AT CLIENT REQUEST RIG: DOYON 16 $ LIS FORMAT DATA ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 68 4 66 1 5 66 6 73 7 65 8 68 0.5 9 65 FT 11 66 15 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 1 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NOWiB NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUMB SAMP ELEM CODE (HEX) DEPT FT 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 SP AIT 14V 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 GR AIT GAPI 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 DT BHC US/F 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 DTCO BHC US/F 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 DRHO LDT G/C3 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 PEF LDT 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 RHOB LDT G/C3 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 DPHI LDT PU 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 CALI LDT IN 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 LIS Tape Verification Listing Schlumberger Alaska Computing Center PAGE: 15 NAME SERV UNIT SERVICE API API API API FILE NUM~ ~ SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUM~ SAMP ELE~ CODE (HEX) RTNR CNT 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 RCNT CNT CPS 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 RCFT CNT CPS 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 CNTC CNT CPS 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 CFTC CNT CPS 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 TNRA CNT 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 NPHI CNT PU-S 1209211 O0 000 O0 0 5 1 1 4 68 0000000000 ** DATA ** DEPT. 13140.000 SP.AIT -79.063 GR.AIT -999.250 DT.BHC -999.250 DTCO.BHC -999.250 DRHO.LDT -999.250 PEF.LDT -999.250 RHOB.LDT -999.250 DPHI.LDT -999.250 CAI~I.LDT -999.250 RTNR.CNT -999.250 RClVT. ClTT -999.250 RCFT. CNT -999.250 CNTC. ClTT -999.250 CFTC. CNT -999.250 TNRA.ClTT -999.250 NPHI.CNT -999.250 ** END OF DATA ** **** FILE TRAILER **** FILE NAME : EDIT .005 SERVICE : FLIC VERSION · O01CO1 DATE : 98/03/10 MAi~REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NAME : EDIT .006 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUM~ER 6 RAW OPEN HOLE REPEAT PASSES Curves and log header data for each pass, tool string, and run in separate files. RUN NUMBER: 1 TOOL STRING NUMBER: 1 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 1I~i9 PAGE: 16 PASS NUMBER: 2 DEPTH INCREMENT: 0.2500 FILE S~Y VENDOR TOOL CODE START DEPTH ........................... PEX 13140.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT) : TD LOGGER (FT) : TOP LOG INTERVAL (FT) : BOTTOM LOG INTERVAL (FT) : LOGGING SPEED (FPHR) : STOP DEPTH 10265.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE CNT SLIM ACCESS CNT LDT SLIM ACCESS LDT BHC SLIM ACCESS BHC AIT SLIM ACCESS AIT $ BOREHOLE A~ CASING DATA OPEN HOLE BIT SIZE (IN) DRILLERS CASING DEPTH (FT) LOGGERS CASING DEPTH (FT) BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF) : RESISTIVITY (OPff4M) AT TEMPERATURE (DEGF) : MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATtrRE (BHT): MUD FILTRATE AT (MT): MUD FILTRATE AT (BHT) : MUD CAKE AT (MT): MUD CAKE AT (BHT): NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): 8-JAN-98 8C0-609 2000 6-JAN-98 2100 8-JAN-98 13115.0 13115.0 10000.0 13115.0 1800.0 TOOL NUMBER SLDT-A SSLT-AA SAIT-A 4.500 10250.0 10250.0 WATER BASED MUD 8.80 45.0 9.0 212.0 O. 136 65.0 O. 120 65.0 O. 180 65.0 THERMAL SANDSTONE 2.65 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1995 PAGE: 17 TOOL STANDOFF (IN): REMARKS: THIS FILE CONTAINS THE RAW DATA FROM THE REPEAT PASS LOGGED AT 0.25' SAMPLE RATES. *** RUN NUMBER 1 *** TWO 1/4" STANDOFFS ON ARRAY INDUCTION ONE TOOL TURNER ON DENSITY TWO STANDOFFS ON SONIC THIS LOG WAS DRILL PIPE CONVEYED TIED INTO SWS BHC LOG DATED 9-11-92 TAGGED TD WITH TOOLSTRING AND LOGGED UP AT CLIENT REQUEST RIG: DOYON 16 $ LIS FORMAT DATA ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 24 4 66 1 5 66 6 73 7 65 8 68 0.25 9 65 FT 11 66 42 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 1 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NUMB NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NOMB SAMP ELEM CODE (HEX) DEPT FT 1209211 O0 000 O0 0 6 1 1 4 68 0000000000 AFiO AIT OH~E4 1209211 O0 000 O0 0 6 1 1 4 68 0000000000 AF20 AIT 0H~9~1209211 O0 000 O0 0 6 1 1 4 68 0000000000 AF30 AIT OH~E4 1209211 O0 000 O0 0 6 1 1 4 68 0000000000 AF60 AIT OPH~M1209211 O0 000 O0 0 6 1 1 4 68 0000000000 AF90 AIT 0t~41209211 O0 000 O0 0 6 1 1 4 68 0000000000 LIS Tape Verification Listing Schlumberger Alaska Computing Center 1 O-MAR-1998 ih~19 PAGE: 18 * * DA TA * * DEPT. 13061.500 AFiO.AIT 5.520 AF60.AIT 9.964 AFgO.AIT 91.823 AF20.AIT 5. 762 AF30 .AIT 6. 664 ** END OF DATA ** **** FILE TRAILER **** FILE NAME : EDIT .006 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NAME : EDIT .007 SERVICE · FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUMBER 7 RAW CASED HOLE MAIN PASS Curves and log header data for open hole logs run into casing. PASS NUMBER: 1 DEPTH INCREMENT: 0.5000 FILE SUFk4ARY VENDOR TOOL CODE START DEPTH STOP DEPTH CNT 10265.0 10020.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE VERSION: TIME CIRCULATION ENDED: TIME LOGGER ON BOTTOM: TD DRILLER (FT): TD LOGGER(FT): 8-JAN-98 8C0-609 2000 6-JAN-98 2100 8-JAN-98 13115.0 13115.0 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 fI%Oi9 PAGE .' 19 TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT) : LOGGING SPEED (FPHR) : 10000.0 13115.0 1800.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE CNT SLIM ACCESS CNT LDT SLIM ACCESS LDT BHC SLIM ACCESS BHC AIT SLIM ACCESS AIT $ TOOL NUMBER ........... CNT-S SLDT-A SSLT-AA SAIT-A BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLERS CASING DEPTH (FT) : LOGGERS CASING DEPTH (FT) : 4.500 10250.0 10250.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF) : RESISTIVITY (OH~) AT TEMPERATURE (DEGF) : MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT) : MUD FILTRATE AT (MT): MUD FILTRATE AT (BHT) : MUD CAKE AT (MT): MUD CAKE AT (BHT) : WATER BASED MUD 8.80 45.0 9.0 212.0 O. 136 65.0 O. 120 65.0 O. 180 65. 0 NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): THERMAL SANDSTONE 2.65 TOOL STANDOFF (IN): 1.0 REMARKS: THIS FILE CONTAINS THE RAW DATA FROM MAIN PASS LOGGED IN CASING. *** RUN NUMBER 1 *** TWO 1/4" STANDOFFS ON ARRAY INDUCTION ONE TOOL TURNER ON DENSITY TWO STANDOFFS ON SONIC THIS LOG WAS DRILL PIPE CONVEYED TIED INTO SWS BHC LOG DATED 9-11-92 TAGGED TD WITH TOOLSTRING AND LOGGED UP AT CLIENT REQUEST RIG: DOYON 16 $ LIS FORMAT DATA LIS Tape Verification Listing Schlumberger Alaska Computing Center PAGE: 2O ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** TYPE REPR CODE VALUE 1 2 3 4 5 66 6 73 7 65 8 68 9 65 11 66 12 68 13 66 14 65 15 66 16 66 0 66 66 0 66 0 73 36 66 1 0.5 FT 28 0 FT 68 1 1 * * SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NUFiB NTJM~ SIZE REPR PROCESS ID ORDER # LOG ~"fPE CLASS MOD IvTJ~B SAMP ELEM CODE (HEX) DEPT FT 1209211 O0 000 O0 0 7 1 1 4 68 0000000000 GR AIT GAPI 1209211 O0 000 O0 0 7 1 1 4 68 0000000000 RTNR CNT 1209211 O0 000 O0 0 7 1 1 4 68 0000000000 RCNT CNT CPS 1209211 O0 000 O0 0 7 1 1 4 68 0000000000 RCFT CNT CPS 1209211 O0 000 O0 0 7 1 1 4 68 0000000000 CNTC CNT CPS 1209211 O0 000 O0 0 7 1 1 4 68 0000000000 CFTC CNT CPS 1209211 O0 000 O0 0 7 1 1 4 68 0000000000 TNRA CNT 1209211 O0 000 O0 0 7 1 1 4 68 0000000000 NPHI CNT PU-S 1209211 O0 000 O0 0 7 i 1 4 68 0000000000 ** DATA ** DEPT. 10265.000 GR.AIT 85.026 RTNR.CNT 7.067 RCNT. CNT RCFT. CNT 216.667 CNTC. CNT 1831.050 CFTC. CArT 223.800 TNRA.CNT NPHI. CNT 58.514 DEPT. 10021.500 GR.AIT 50.509 RTNR.CNT 9.333 RCNT. CNT RCFT. CNT 166.667 CNTC. CNT 1763.410 CFTC. CNT 172.154 TNRA.CNT NPHI. CNT 72.192 1531.250 7.323 1555.556 8.890 LIS Tape Verification Listing Schlumberger Alaska Computing Center lO-MAR-1998 ~9 PAGE: 21 ** END OF DATA ** **** FILE TRAILER **** FILE NAME : EDIT .007 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NAME : EDIT .008 SERVICE : FLIC VERSION : O01CO1 DATE : 98/03/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUMBER 8 RAW CASED HOLE REPEAT PASSES Curves and log header data for each pass in separate files. PASS NUMBER: 2 DEPTH INCREMENT: 0.5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH 10265.0 10066.0 CNT LOG HEADER DATA DATE LOGGED: 8-JAN- 98 SOFTWARE VERSION: 8C0 - 609 TIME CIRCULATION ENDED: 2000 6-JAN-98 TIME LOGGER ON BOTTOM: 2100 8-JAN-98 TD DRILLER (FT) '. 13115.0 TD LOGGER (FT) : 13115.0 TOP LOG INTERVAL (FT): 10000.0 BOTTOM LOG INTERVAL (FT) : 13115.0 LOGGING SPEED (FPHR) : 1800. 0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER LIS Tape Verification Listing Schlumberger Alaska Computing Center PAGE: 22 CNT SLIM ACCESS CNT LDT SLIM ACCESS LDT BHC SLIM ACCESS BHC AIT SLIM ACCESS AIT GR GAF~A RAY $ CNT- S SLDT-A SSLT-AA SAIT-A SAIT-A BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLERS CASING DEPTH (FT) : LOGGERS CASING DEPTH (FT) : 4.500 10250.0 10250.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH: FLUID LOSS (C3): MAXIMUM RECORDED TEMPERATURE (DEGF) : RESISTIVITY (0H~94) AT TEMPERATURE (DEGF) : MUD AT MEASURED TEMPERATURE (MT): MUD AT BOTTOM HOLE TEMPERATURE (BHT) : MUD FILTRATE AT (MT): MUD FILTRATE AT (BHT) : MUD CAKE AT (MT): MUD CAKE AT (BHT) : WATER BASED MUD 8.80 45.0 9.0 212.0 O. 136 65.0 O. 120 65.0 O. 180 65.0 NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): THERMAL SANDSTONE 2.65 TOOL STANDOFF (IN): 1.0 REMARKS: THIS FILE CONTAINS THE RAW DATA FROM REPEAT PASS LOGGED IN CASING. *** RUN ~ER 1 *** TWO 1/4" STANDOFFS ON ARRAY INDUCTION ONE TOOL TURNER ON DENSITY TWO STANDOFFS ON SONIC THIS LOG WAS DRILL PIPE CONVEYED TIED INTO SWS BHC LOG DATED 9-11-92 TAGGED TD WITH TOOLSTRING AND LOGGED UP AT CLIENT REQUEST RIG: DOYON 16 $ LIS FORMAT DATA LIS Tape Verification Listing Schlumberger Alaska Computing Center PAGE: 23 ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE- 64EB ** TYPE REPR CODE VALUE .............................. 1 66 0 2 66 0 3 73 36 4 66 1 5 66 6 73 7 65 8 68 0.5 9 65 FT 11 66 28 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 1 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NUMB NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NI]M~ SAMP ELE~ CODE (HEX) DEPT FT 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 GR AIT GAPI 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 RTNR CNT 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 RCNT CNT CPS 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 RCFT CNT CPS 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 CNTC CNT CPS 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 CFTC CNT CPS 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 TNRA CNT 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 NPHI CNT PU-S 1209211 O0 000 O0 0 8 1 1 4 68 0000000000 * * DA TA * * DEPT. 10265.000 GR.AIT 85.026 RTNR.CNT 7.067 RCNT. CNT RCFT. CNT 216.667 CNTC. CNT 1831.050 CFTC. CNT 223.800 TNRA.CNT NPHI. CNT 58.514 1531.250 7.323 ** END OF DATA ** Sperry-Sun Drilling Services LIS Scan Utility Fri Feb 13 08:44:21 1998 Reel Header Service name ............. LISTPE Date ..................... 98/02/13 Origin ................... STS Reel Name ................ UNKNOWN Continuation Number ...... 01 Previous Reel Name ....... UNKNOWN Comments ................. STS LIS Writing Library. Scientific Technical Services Tape Header Service name ............. LISTPE Date ..................... 98/02/13 Origin ................... STS Tape Name ................ UNKNOWN Continuation Number ...... 01 Previous Tape Name ....... UNKNOWN Comments ................. STS LIS Writing Library. Scientific Technical Services Physical EOF Comment Record TAPE HEADER PRUDHOE BAY UNIT MWD/MAD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION SECTION: TOWNSHIP: P.A/~GE: FNL: FSL: FEL: FWL: MWD RUN 1 AK-M~-80056 S. LATZ D. NAKAMURA ELEVATION (FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: Oate~ R-25A 500292227801 BP EXPLORATION (ALASKA), INC. SPERRY-SUN DRILLING SERVICES 13-FEB-98 MWD RUN 3. AK-MM-80056 R. FRENCH D. NAKAMURA 32 12N 13E 1155 1817 44.90 43.30 18.90 WELL CASING RECORD 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING REMARKS: OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 7.000 10258.0 4.750 13115.0 1. ALL DEPTHS ARE MEASURED DEPTHS (MD) UNLESS OTHERWISE NOTED. 2. ALL RUNS ARE DIRECTIONAL WITH DUAL GAMMA RAY (DGR) UTILIZING GEIGER-MUELLER TUBE DETECTORS (SOLAR 175 GAMMA TOOL). 3. MWD RUN 2 MADE NO FOOTAGE AND IS NOT PRESENTED. 4. MWD RUNS 1 AND 3 REPRESENT WELL R-25A WITH API#: 50-029-22278-01. THIS WELL REACHED A TOTAL DEPTH (TD) OF 13115'MD, 8772'TVD. SROP = SMOOTHED RATE OF PENETRATION WHILE DRILLING. SGRC = SMOOTHED GAMMA RAY COMBINED. $ File Header Service name ............. STSLIB.001 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 98/02/13 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH GR 10235.0 13085.5 ROP 10289.5 13142.0 $ BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) BASELINE DEPTH 10235 0 10258 10262 10270 10272 10277 10279 10308 10323 10327 10330 10333 GR 10209 5 10232 5 10238 0 10245 5 10249 5 10253 5 10255 0 10284 5 10301 0 10303 5 10307 5 10309 5 EQUIVALENT UNSHIFTED DEPTH ....... 10336 10340 10342 10348 10351 10354 10357 10367 10371 10380 10384 10388 10392 10396 10399 10413 10415 10417 10430 10431 10437 10439 10446 10450 10451 10453 10467 10483 10494 10495 10497 10499 10502 10542 10543 10546 10550 10552 10555 10578 10581 10582 10584 10587 10593 10597 10598 10603 10607 10612 10630 10633 10641 10643 10647 10659 10670 10679 10684 10687 10314 5 10317 5 10319 0 10326 0 10327 5 10330 0 10334 5 10345 0 10348 0 10357 5 10361.0 10366 5 10370 0 10372 5 10376 5 10390 5 10392 5 10394 0 10406 5 10409 0 10413 5 10417 5 10425.0 10427 5 10429 0 10430 0 10445 5 10459 5 10470 5 10472 5 10473 5 10474 5 10478 0 10518 5 10520 5 10523 5 10526 0 10528 5 10533 0 10554 5 10558 5 10559 0 10562 0 10564 5 10571 0 10575 5 10577 0 10581 0 10584 0 10587 5 10606 5 10609 5 10615 0 10619 0 10622 5 10640 0 10646 0 10655 0 10660 5 10663 0 10688 10695 10698 10700 10705 10727 10728 10732 10739 10743 10786 10796 10801 10803 10809 10817 10819 10827 10839 10845 10848 10850 10857 10859 10871 10882 10903 10918 10919 10936 10938 10940 10943 10944 10951 10963 10971 10974 10983 10989 10994 10997 10999 11001 11003 11005 11010 11018 11021 11029 11043 11047 11051 11053 11095 11099 11107 11158 11165 11168 10665 0 10671 0 10673 0 10677 0 10681 0 10702 5 10703 5 10707 5 10714 0 10719 5 10761 5 10772.0 10777.0 10780.0 10785.5 10792.5 10795.0 10803.0 10816 0 10819 5 10823 5 10826 0 10831 5 10834 0 10847 5 10858 5 10879 0 10894 5 10896.0 10911.0 10913.5 10915.0 10919.5 10920.0 10927.0 10939 0 10948 0 10952 0 10958 0 10964 5 10970 0 10973 0 10974 5 10976 5 10978 0 10981 5 10988 5 10992 0 10995 5 11002 5 11017 0 11022 5 11025 0 11026 5 11070 5 11075 5 11083 5 11137 0 11140 0 11142 0 11170 11170 11172 11192 11205 11232 11239 11248 11252 11253 11255 11257 11260 11262 11276 11284 11285 11287 11293 11295 11296 11299 11409 11412 11416 11458 11466 11470 11471 11476 11479 11515 11518 11521 11526 11597 11602 11605 11606 11618 11619 11627 11635 11639 11651 11656 11712 11714 11715 11806 11811 11819 11826 11827 11872 11873 11876 11882 11893 11902 11145 5 11147 5 11149 0 11164 5 11179 0 11209 0 11215 0 11224 5 11227 0 11230 5 11232 5 11234 0 11237 5 11240 5 11252 0 11256 5 11258 0 11259 0 11267 0 11269.5 11272 5 11274 5 11373 0 11378 0 11384 0 11434 0 11444 0 11447 5 11448 0 11451 0 11453.5 11491 5 11493 5 11497 0 11501 5 11574 5 11578 0 11579 0 11579 5 11593 5 11595 0 11601 5 11617 0 11618 5 11627 5 11630 5 11687 0 11688 5 11689 5 11789 0 11790 0 11794 5 11796 5 11797 5 11845 0 11847 5 11849 5 11852 0 11868 0 11875 5 11938 11939 11943 11951 11962 11966 11974 11977 11982 11990 11996 12004 12005 12011 12071 12107 12111 12115 12210 12238 12243 12247 12491 12512 12532 12558 12561 12563 12564 12565 12697 12704 12782 12784 12789 12793 12795 12796 12804 12815 12829 12846 12849 12876 12882 12887 12902 12910 12919 12927 12930 12936 12940 12943 13011 13014 13017 13019 13027 13033 5 5 5 5 0 5 5 5 0 0 5 0 5 5 5 5 5 5 0 5 0 5 5 0 0 0 0 0 5 5 0 5 0 0 5 5 0 5 0 5 5 0 5 5 0 0 0 0 5 0 5 0 5 0 5 5 5 0 0 0 11916 0 11917 0 11920 0 11928 0 11938 0 11941 0 11950 0 11954 0 11957 0 11964 5 11972 0 11977 0 11980 0 11987 5 12046 5 12081 5 12087 0 12093.0 12184 5 12212 0 12218 0 12223 0 12464 0 12488 0 12504 5 12527 5 12530 0 12532 5 12535 0 12536 5 12670 0 12675.0 12756.0 12759.0 12761.5 12765.0 12765 5 12769 0 12774 5 12786 5 12801 5 12816 5 12820 0 12848 0 12851 5 12858 5 12873 5 12881 0 12889 0 12897 0 12901 0 12906 0 12912 0 12914 5 12983 5 12986 5 12988 5 12989 5 12997 5 13002 5 13038.0 13008.0 13047.0 13021.0 13050.5 13023.5 13053.5 13026.5 13142.0 13115.0 $ MERGED DATA SOURCE PBU TOOL CODE BIT RUN NO MWD 1 MWD 3 $ REMARKS: MERGED MAIN PASS. $ MERGE TOP MERGE BASE 10264.0 12035.0 12035.0 13115.0 Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEFT FT 4 1 68 0 1 ROP MWD FT/H 4 1 68 4 2 GR MWD API 4 1 68 8 3 First Name Min Max Mean Nsam Reading DEFT 10235 13142 11688.5 5815 10235 ROP 4.146 2162.11 93.6727 5706 10289.5 GR 22.8237 206.832 52.3312 5702 10235 Last Reading 13142 13142 13085.5 First Reading For Entire File .......... 10235 Last Reading For Entire File ........... 13142 File Trailer Service name ............. STSLIB.001 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 98/02/13 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.002 Physical EOF File Header Service name ............. STSLIB.002 Service Sub Level Name... Version Number ........... 1.0.0 Date o£ Generation ....... 98/02/13 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 10209.5 ROP 10265.5 $ LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT): TOP LOG INTERVAL (FT) : BOTTOM LOG INTERVAL (FT) : BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUMANGLE: STOP DEPTH 11980.0 12035.5 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY S) : MUD PH: MUD CHLORIDES PPM) : FLUID LOSS (C3 : RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: IWJD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: 03-JAN-98 ISC 5.07 / ISC 5.07 DM .09 / GM 1.21 MEMORY 12035.0 10264.0 12035.0 36.6 102.3 TOOL NUMBER SOLAR GM 74165 4.500 4.5 QUIKDRIL-N 8.60 48.0 8.9 5.8 .000 .000 .000 .000 44.5 I~TRIX DENSITY: HOLE CORRECTION (IN): TOOL STA~qDOFF (IN): EWR FREQUENCY (HZ): REMARKS: $ Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 .3 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 GR MWD 1 API 4 1 68 4 2 ROP MWD 1 FT/H 4 1 68 8 3 First Name Min Max Mean Nsam Reading DEPT 10209.5 12035.5 11122.5 3653 10209.5 GR 23. 8029 206. 832 57. 4494 3542 10209.5 ROP 4. 146 2162.11 82. 9528 3541 10265.5 Last Reading 12035.5 11980 12035.5 First Reading For Entire File .......... 10209.5~ Last Reading For Entire File ........... 12035.5 File Trailer Service name ............. STSLIB.002 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 98/02/13 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.003 Physical EOF File Header Service name ............. STSLIB.003 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 98/02/13 Maximum Physical Record..65535 File Type ................ LO Previous File Name ....... STSLIB.002 Comment Record FI LE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMPLARY VENDOR TOOL CODE START DEPTH GR 11980.5 ROP 12036.0 LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT) : TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: STOP DEPTH 13058.5 13115.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE DGR DUAL GAMMA RAY $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3) : RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) IdUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN) : EWR FREQUENCY (HZ) : REMARKS: 06-JAN-98 ISC 5.07 / ISC 5.07 DM .09 / GM 1.21 MEMORY 13115.0 12035.0 13115.0 77.6 100.6 TOOL NUMBER SOLAR GM 74165 4.500 4.5 QUIKDRIL-N 8.60 48.0 8.9 5.8 .000 .000 .000 .000 44.5 .3 Data Format Specification Record Data Record Type .................. 0 Data Specification Block Type ..... 0 Logging Direction ................. Down Optical log depth units ........... Feet Data Reference Point .............. Undefined Frame Spacing ..................... 60 .liN Max frames per record ............. Undefined Absent value ...................... -999.25 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep DEPT FT 4 1 68 GR MWD 3 API 4 1 68 ROP MWD 3 FT/H 4 1 68 Code Offset 0 4 8 Channel 1 2 3 Name Min Max Mean Nsam DEPT 11980.5 13115 12547.8 2270 GR 22.8237 193.682 43.6103 2157 ROP 17.7139 1969.95 110.206 2159 First Reading 11980.5 11980.5 12036 Last Reading 13115 13058.5 13115 First Reading For Entire File .......... 11980.5 Last Reading For Entire File ........... 13115 File Trailer Service name ............. STSLIB.003 Service Sub Level Name... Version Number ........... 1.0.0 Date of Generation ....... 98/02/13 Maximum Physical Record..65535 File Type ................ LO Next File Name ........... STSLIB.004 Physical EOF Tape Trailer Service name ............. LISTPE Date ..................... 98/02/13 Origin ................... STS Tape Name ................ UNKNOWN Continuation Number ...... 01 Next Tape Name ........... UNKNOWN Comments ................. STS LIS Writing Library. Technical Services Reel Trailer Service name ............. LISTPE Date ..................... 98/02/13 Origin ................... STS Reel Name ................ UNKNOWN Scientific Continuation Number ...... 01 Next Reel Name ........... UNKNOWN Comments ................. STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File