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Home My WebLink About201-111Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 1400 Anchorage, AK 99503 Phone: (907) 564-4891 02/09/2024 Mr. Mel Rixse Alaska Oil and Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 Re: Prudhoe Bay Surface Casing by Conductor Annulus Top-offs of Cement, Corrosion Inhibitor through 02/09/2024. Dear Mr. Rixse, Enclosed please find a copy of a spreadsheet with a list of Prudhoe Bay wells that were topped-off with cement, corrosion inhibitor in the surface casing by conductor annulus through 02/09/2024. Cement top-offs are executed as needed to mitigate the void space left at surface by minor cement fallback during the primary surface casing by conductor cement job. The remaining void space between the top of the cement and the top of the conductor is filled with a heavier than water corrosion inhibitor to reduce the risk of external surface casing corrosion. The attached spreadsheets include the well names, API and PTD numbers, treatment dates and volumes. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404 Report of Sundry Operations. If you have any additional questions, please contact me at 564-4891 or oliver.sternicki@hilcorp.com. Sincerely, Oliver Sternicki Well Integrity Supervisor Hilcorp North Slope, LLC Digitally signed by Oliver Sternicki DN: cn=Oliver Sternicki, c=US, o=Hilcorp North Slope LLC, ou=PBU, email=oliver.sternicki@hilcorp.com Date: 2024.02.09 11:15:58 -09'00' Oliver Sternicki Hilcorp North Slope LLC. Surface Casing by Conductor Annulus Cement, Corrosion Inhibitor Top-off Report of Sundry Operations (10-404) 02/09/2024 Well Name PTD # API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date L-293 223020 500292374900 30 8/29/2023 S-09A 214097 500292077101 2 9/19/2023 S-102A 223058 500292297201 2 9/19/2023 S-105A 219032 500292297701 10 9/19/2023 S-109 202245 500292313500 7 9/19/2023 S-110B 213198 500292303002 35 9/19/2023 S-113B 202143 500292309402 10 9/19/2023 S-115 202230 500292313000 4 9/19/2023 S-116A 213139 500292318301 4 9/19/2023 S-117 203012 500292313700 3 9/19/2023 S-118 203200 500292318800 9 9/19/2023 S-122 205081 500292326500 5 9/19/2023 S-125 207083 500292336100 2 9/19/2023 S-126 207097 500292336300 3 9/19/2023 S-134 209083 500292341300 35 9/19/2023 S-200A 217125 500292284601 7 9/19/2023 S-202 219120 500292364700 13 9/19/2023 S-210 219057 500292363000 10 9/19/2023 S-213A 204213 500292299301 4 9/19/2023 S-215 202154 500292310700 3 9/19/2023 S-216 200197 500292298900 4 9/19/2023 S-41A 210101 500292264501 3 9/19/2023 W-16A 203100 500292204501 2 9/23/2023 W-17A 205122 500292185601 3 9/23/2023 Well Name PTD #API # Initial top of cement (ft) Vol. of cement pumped (gal) Final top of cement (ft) Cement top off date Corrosion inhibitor (gal) Corrosion inhibitor/ sealant date W-19B 210065 500292200602 8 9/23/2023 W-21A 201111 500292192901 8 9/23/2023 W-32A 202209 500292197001 4 9/23/2023 W-201 201051 500292300700 44 9/23/2023 W-202 210133 500292343400 6 9/23/2023 W-204 206158 500292333300 3 9/23/2023 W-205 203116 500292316500 3 9/23/2023 W-207 203049 500292314500 3 9/23/2023 W-211 202075 500292308000 8 9/23/2023 W-213 207051 500292335400 3 9/23/2023 W-214 207142 500292337300 10 9/23/2023 W-215 203131 500292317200 2 9/23/2023 W-223 211006 500292344000 7 9/23/2023 Z-69 212076 500292347100 2.0 27 1.5 10/24/2023 S-128 210159 500292343600 11 12/27/2023 S-135 213202 500292350800 16 12/27/2023 V-113 202216 500292312500 24 12/31/2023 V-114A 203185 500292317801 5 12/31/2023 V-122 206147 500292332800 5 12/31/2023 V-205 206180 500292333800 2 12/31/2023 V-207 208066 500292339000 8 12/31/2023 V-214 205134 500292327500 5 12/31/2023 V-215 207041 500292335100 2 12/31/2023 V-218 207040 500292335000 5 12/31/2023 V-224 208154 500292340000 16 12/31/2023 V-225 209118 500292341900 6 12/31/2023 V-01 204090 500292321000 3 1/1/2024 V-02 204077 500292320900 5 1/1/2024 V-04 206134 500292332200 5 1/1/2024 V-102 202033 500292307000 8 1/1/2024 V-104 202142 500292310300 5 1/1/2024 V-220 208020 500292338300 4 1/1/2024 W-21A 201111 500292192901 8 9/23/2023 Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWelllntegrityCoordinator©bp.com] Sent: Tuesday, August 20,2013 12:56 PM To: AK, OPS GC2 OSM;AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead;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, RES GPB East Wells Opt Engr; Burton, Kaity;AK, OPS Well Pad SW; Regg, James B(DOA); Wallace, Chris D(DOA) Cc: AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; Climer, Laurie A Subject: UNDER EVALUATION: W Pad Producers with Sustained Casing Pressures during TAR All, The below producer wells are ready to be brought online Under Evaluation for further diagnostics after their IA exceeded MOASP during TAR: :-...W-21A W-16A(PTD#2031000) 22 PTD #88111 -_,) SC t4$ " , g W-36(PTD#1881060) W-37A (PTD#2021490) / W-38A(PTD#2021910) Should a well fail the warm TIFL,an email will be sent to the AOGCC with a plan forward.The producer well below will be brought online Under Evaluation to evaluate OA over MOASP for further diagnostics. W-01A(PTD#2031760) The OART results will be relayed in a separate email. Please call with any questions. Regards, Laurie Climer (4/krHah Jac% 1)1,1)).(11) BP Alaska - Well Integrity Coordinator G l rf' S ti t't'n, .°�y3 �2ai+ '1 WIC Office: 907.659.5102 WIC Email: AKDCWeIIlntegrityCoordinator @BP.com 1 Pfau - A Regg, James B (DOA) From: AK, D&C Well Integrity Coordinator[AKDCWelllntegrityCoordinator @bp.com] Sent: Wednesday, June 05, 2013 8:54 PM To: AK, OPS GC2 OSM; AK, OPS GC2 Field O&M TL; AK, OPS GC2 Wellpad Lead; 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, RES GPB East Wells Opt Engr; Longden, Kaity; AK, OPS Well Pad SW; Regg, James B (DOA); Schwartz, Guy L (DOA) Cc: AK, D&C DHD Well Integrity Engineer; Walker, Greg (D&C); Weiss, Troy D; Holt, Ryan P; AK, D&C Well Integrity Coordinator Subject: NOT OPERABLE: Producers with Sustained Casing Pressure on the Inner Annulus During Plant Shutdown Attachments: W Pad Producer TIO Plots and Wellbore Schematics.zip All, The following wells were found to have sustained casing pressure above MOASP on the inner annulus during a plant shutdown. Each well is listed with the tubing/inner annulus/outer annulus pressures, and the date the sustained casing pressure was reported. The wells are reclassified as Not Operable until tubing integrity can be confirmed. W-22(PTD#1881100),TIO: 1950/2060/50, Reported on 06/02/2013 W-21A(PTD#2011110),TIO: 1910/2060/120, Reported on 06/03/2013 W-10A(PTD#2020590),TIO: 1920/2040/120, Reported on 06/04/2013 Plan forward: 1. DHD:TIFL each well after it has been placed on production Under Evaluation If any of the TIFLs fail, the AOGCC will be notified separately for each failure. A copy of the TIO plots and wellbore schematics are included in the attached zip file for reference. Please call with any questions. Thank you, S Ch Jack Disbrow SCANNED BP Alaska-Well Integrity Coordinator GWGlobal4Nells �p _ G 7C �; Orclanizat onn I Office: 907.659.5102 C" J �P- n �.o v WIC Email:AKDCWellIntegrityCoordinator @bp.com 1 QQ O I en • O M { 1 _O 1 M , M_ f� I 3 � I IM1 r§ _M O _cam 0 ° O. d T— im N ° o a ci N CO i in a f- TREE= 4-1116"CIW yygL1FAD= MEVOY VV-21 A SAFETY NOTES: WELL ANGLE>70°(10370'. ACTUATOR= BAKER C ***4-1/2"CHROME TBG*** INTIAL KB.ELE 90.9' L1 & L1-01 NTIAL BE FIE 54.46' II l Mex Angle= 97°@ 12614' 2209' —i4-112"NES X NP, =3.813" Datum 143-:=7-- - O=.-- 10300 Datum TVD= 8800'SS GAS LFT MANDRELS ST ND TVD DEV TYPE VLV LATCH PORT DATE 113-3/8"CSG,68#,L-80,ID=12.415" H 2710' 6 3107 3105 0 MUG DMY RK 0 10/02/12 5 3636 3633 0 MvV3 DOPE RK 16 10/02/12 Minimum ID = 2.31"� 9905' 4 5928 5844 32 WIG DONE RK 16 10/02/12 4-1/2" X 2-7/8" NIP REDUCER 3 6929 6599 44 MG DMY RK 0 11/18/01 2 8309 7589 44 WIG DONE RK 16 10/02/12 1 9812 8647 54 KBG-2 SO BK 24 10/02/12 9-5/8"X 7"BKR ZXP PKR,40=6.270" -+ 9142' �-4 • i 6820'-6840' —45 KB PATCH,D=2.45"(10/16/12) 9-5/8"X 7"BKR HMC HGR, D=6.270" 9155' 9-5/8"MLLOUT VVINDOW(W-21A) 9327'-9343' 9-5/8"CSG,47#,L-80,D=8.681" H "-9327 9871' —14-112"HES X NIP,0=3.813" At p = C6--c per, ��4 C4 9881' —17"X 4-1/2"BKR S-3 H(R D=3.875" 4-1/2"TBG, 12.6#,13CR-80 FOX, H 9937' .0152 bpf,ID=3.958" 7"LM,26#,L-80 BTC-t .0383 bpf,11..)=6.276" — 10085" 9905' —I4-112"X 2-718"NP ID=2.31" 9905' —14-112"IBS X NIP,0=3.813" PERFORATION SUMMARY I 9925' —14-1/2"FES XN M3,MLLED TO 3.80"(12/05/11) REF LOG:SVVS VISION RESISTIVITY ON 11/10/01 ANGLE AT TOP PERF:N/A ,, 111 9933' H7"X 5"BKR ZXP LW w I C2 FROFLE,0=4.34" Note:Refer to Production DB for historical perf data ' 9937 —{4-112"WLEG,D=3.958" SIZE SPF INTERVAL Opn/Sqz DATE W-21A 9947' H 7"X 5"BKR FLEX LOCK HY D LNR HGR,ID=4.408" 1 2-1/2' 4 10464-10548 0 11/16/01 9956' --15'X 4-112"XO,D=3797 2-1/2" 4 10600- 10674 O 11/16/01 2-1/2" 4 12897-13299 0 11/16/01 MLLOUTVVINDOW(W-21AL1) 10474'-10483' 2-1/2" 4 13404-13535 O 11/16/01 2-1/2" 4 13750-14128 O 11/16/01 — 2-1/2" 4 14170-14305 O 11/16/01 10501' --{BIT SHORTY DFROY SLV,ID=2.370" 2-1/2" 4 14335-14380 O 11/16/01 2-1/2" 4 14595-14710 0 11/16/01 -- - _ — 2-1/2" 4 14725-14785 0 11/16/01 T — __ L1-01 J W-21A L1 °'1r: 2-718"LNR 6.16 4,L-80 STL, 11752' 2-7/8" SLTD 10529- 11883 0 12/10/11 . .0058 bpf,D=2.440" S. W-21A L1-01 --_ — — 2-7/8" SLTD 10505- 11174 0 12/15/11 ———'— 2-7/8" SLID 11578- 11736 O 12/15/11 10510' —BTT ALUMNUM'_ y — - 1` IBELET,D=1.00" 2-7/8"LW,6.2#,L-80 STL, —I 11895' FBTD..—I 14805' ' .0058 bpf,1)=2.441" 4-1/2"LNR 12.6#,L-80 BT-Wt,.0152 bpf,D —I=3.958" � 14892' `21 12711' 4-1/2"MARKER JOINT DATE REV BY COMMENTS DATE REV BY COMvB'TTS FRLDHOE BAY UNIT 04/23/89 AUDI 3 OR1G COMPLETION 04/20/12 TJW PJC GLV C/0(04/19/12) WELL: W-21A/L1 &L1-01 10/31/90 D-16 RWO 04/20/12 TJW PJC RJLL XX PLUG PERMIT Na: 2011110(2111310)(2111320) 11/18/01 N9ES SIDETRACK(W-21A) 08/17/12 KU PJC IAN D CORRECTION AR No: 50-029-21929-01 (60)(61) 12/19/11 NORDIC 1 CTD ML(W-21A L1 &L1-01) 10/22/12 CDJ/JM0 FULLED PATCH&SET RUG(09/30/12) SEC 21,T11 N,R12E,627'FNL&1180'FEL 04/18/12 PJC NP RED/PLUG CORRECTIONS 10/22/12 JCMJMD GLV&PATCH C/O(10/02-16/12) 04/20/12 JCM!PJC SET PATCH(04/17/12) BP Exploration(Alaska) ECEIVED • • STATE OF ALASKA • ALASKA OIL AND GAS CONSERVATION COMMISSION APR 3 0 2012 REPORT OF SUNDRY WELL OPERATIONS AOGCC 1. Operations Abandon U Repair Well U Plug Perforations U Perforate U Other U Patch 6819' -6842' Performed: Alter Casing ❑ Pull Tubing ❑ Stimulate - Frac ❑ Waiver ❑ Time Extension ❑ Change Approved Program ❑ Operat. Shutdown ❑ Stimulate - Other ❑ Re -enter Suspended Well ❑ 2. Operator 4. Well Class Before Work: 5. Permit to Drill Number: Name: BP Exploration (Alaska) , Inc. Development Xd ioratory ❑ — 201 -111 3. Address: P . 0 . Box 196612 Stratigraphic ❑ Service ❑ 6. API Number: Anchorage, Alaska 99519 -6612 50- 029 - 21929 -01 -00 7. Property Designation (Lease Number): r 8. Well Name and Number: ADLO- 047451 PBU W -21A 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): 10. Field /Pool(s): Prudhoe Bay Field / Prudhoe Oil Pool 11. Present Well Condition Summary: Total Depth measured 14892 feet Plugs measured NONE feet true vertical 8976 feet Junk measured NONE feet Effective Depth measured 14805 feet Packer measured SEE BELOW feet true vertical 8976 feet true vertical feet Casing Length Size MD TVD Burst Collapse Structural Conductor 73' 20" Conductor 37' -110' 37' -110' Surface 2675' 13 -3/8" 68# L -80 35' -2710' 36' -2708' 4930 2270 Production 9293' 9 -5/8" 47# L -80 34' -9327 35'-8345' 6870 4760 Liner 943' 7" 26# L -80 9142'- 10085' 8210' -8788' 7240 5410 Liner 4959' 4 -1/2" 12.6# L -80 9933'- 14892' 8713' -8976' 8430 7500 Perforation depth Measured depth SEE ATTACHEDfeet True Vertical depth feet SUNNED MAY i E 201. Tubing (size, grade, measured and true vertical depth) 4 -1/2" 12.6# 13Cr80 33'-9936' 33' -8715' 7" BKR ZXP PKR 9142' 8210' Packers and SSSV (type, measured and true vertical depth) 4 -1 /2" BKR S -3 PKR 9881' 8687' 4 -1/2" BKR ZXP PKR 9933' 8713' 12. Stimulation or cement squeeze summary: Intervals treated (measured): 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: 164 410 327 2 6 7 Subsequent to operation: 1359 1714 688 741 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory❑ Development © A. Service ❑ Stratigraphic ❑ Daily Report of Well Operations 16. Well Status after work: Oil , © Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP ❑ SPLUG ❑ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: Contact Nita Summerhays Printed Name N' to 7 me; a - Title Data Manager Signature / Afri e� � / 41w Phone 564 -4035 Date 04/27/2012 ' ,,d Form 10-404 Revised 11/2011 RBDMS MAY 01 112 ,..r . 5=2 , Submit Original Only ,r' r W-21A 201 -111 PERF ATTACHMENT • i Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base W -21A 11/16/01 PER 10,464. 10,548. 8,934.98 8,951.63 W -21A 11/16/01 PER 14,595. 14,710. 8,977.87 8,975.62 W -21A 11/16/01 PER 14,335. 14,380. 8,972.28 8,973.56 W -21A 11/16/01 PER 14,170. 14,305. 8,965.79 8,971.28 W-21A 11/16/01 PER 14,725. 14,785. 8,975.52 8,975.71 W -21A 11/16/01 PER 13,404. 13,535. 8,976.92 8,981.67 W -21A 11/16/01 PER 12,897. 13,299. 8,976.16 8,973.61 W -21A 11/16/01 PER 10,600. 10,674. 8,960.89 8,975.02 W -21A 11/16/01 PER 13,750. 14,128. 8,978.12 8,963.66 W -21A 5/31/09 BPS 9,923. 14,785. 8,708.4 8,975.71 • W -21A 6/27/09 BPP 9,923. 14,785. 8,708.4 8,975.71 W -21A 10/6/11 BPS 9,905. 14,785. 8,699.16 8,975.71 W -21A 11/16/11 BPP 9,905. 14,785. 8,699.16 8,975.71 W -21AL1 12/19/11 SL 10,529. 11,883. 8,945.78 8,959.51 W- 21AL1 -01 12/19/11 SL 10,505. 11,174. 8,943.17 8,945.91 - 1 12 • 11,578. 11,736. 8,938.06 8,924.96 W -21A V BPS 9,887. 10,464. 8,689.76 8,934.98 W -21A 1 4/20/12 BPP 7 9,887. ) 10,464. 8,689.76 8,934.98 AB ABANDONED PER PERF _••- r RPF REPERF BPP BRIDGE PLUG PULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE • MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN 1 OH OPEN HOLE • • W -21A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 4/16/20121` ** WELL SHUT -IN ON ARRIVAL *** (SLB E -LINE - SET 20' PATCH) INITIAL T /I /O = 250/100/200 PSI RIH W/ 4 1/2 BAKER 20' PATCH , BUT AFTER POWERING UNIT BACK UP CCL ;DID NOT SEE ANY COLLARS, TROUBLESHOOTED BUT STILL NO COLLARS `POOH, DISARMED EXPLOSIVES AND TROUBLESHOOT AT SURFACE, NO {ISSUES FOUND WENT AHEAD AND RE -HEAD AND OP -CHECK TOOLSTRING FLAYED DOWN FOR THE NIGHT AND WILL BE BACK IN THE MORNING 1 FINAL T /I/0= 250/100/200 PSI ' * ** WELL SHUT -IN UPON DEPARTURE * ** (JOB WILL CONTINUE ONTO 16- APRIL- 2012) 4/17/20121 * ** WELL SHUT -IN ON ARRIVAL * ** (SLB E -LINE SET 20' PATCH - JOB (CONTINUED FROM 16- APRIL -2012) 1 INITIAL T /I /O = 230/100/0 PSI 'SET 45 KB STRADDLE PATCH FI FMENT TO FI FMFNT Qi ARM - RR4f' (TOP OF PATCH @ 6819') (OAL = 26.90' / MIN ID = 2.37 ") ;MIT TUBING TO 2500 PSI - PASSED ;FINAL T /I /O = 230/100/200 PSI * ** WELL SHUT -IN UPON DEPARTURE * ** FLUIDS PUMPED BBLS 2 DIESEL 2 TOTAL TREE 41/16 CM/ • S WELL ANGLE = IkEVOY ° @ 10370'. ACTUATOR = BAKER C ***4-1/2" CHROME TB0*** INTU',L KB. ELE 90.9 L1 & L1 01 INTIAL BF. ELE 54.46' KOP = 4900' 1 ii - I Max Angie = 97° @ 12614' I 2209 H4 -1/2" HES X NIP, ID = 3.813" Datum MD = 10300' Datum - IVO = 8800' SS GAS LIFT MANDRELS 113 -3/8" CSG, 68#, L -80, ID = 12.415" H 2710' , 6 3107 1 LATCH 3105 00 MMG DOME RK PORT 16 04/19/12 d i dik _ —. 5 3636 3633 0 MUG DMY RK 0 04/04/12 Minimum ID = 3.80 "@ 9925' 4 5928 5844 32 MUG SO RK 20 04/19/12 4 -112" MILLED HES XN NIPPLE 1 44 WAG 0 11/18/01 2 8309 7 . _ IUIVIG DMY RK 0 11/15/11 1 9812 54 _ .1,h . - 0 11/15/11 I9 -5/8" X 7" BKR ZXP PKR, ID = 6.270" H 9142' c 19-5/8" X 7" BKR HMC HGR, ID = 6.270" H { 9155' * 6819' - 6842' H45 KB PATCH, 2.37' (04117112) J 9 - 5/8" MILLOUT WI -21A) 93 - 9343' 19-5/8" CSG, 47 #, L -80, ID = 8.681" H 9327 I — I 9871' 1H4 -1/2" HES X NIP, ID = 3.813" 1 9881' J X 4-1/2" BKR S-3 PKR ID = 3.875" I 4-1/2" TBG, 12.6#, 13CR -80 FOX, —1 9937' .0152 bpf, ID = 3.958" IT' LNR, 26#, L -80 BTC-M, .0383 bpf, ID = 6.276" H 10085' 1 9905' 1 - /2' X 2 -7/8" NIP REDUCER, ID = 2.31 " I 9905' H 4-1 /2' HES X NIP, ID = 3.813" I PERFORATION SUMMARY 9925' 1-14-1 /2" HES XN NIP, WILLED TO 3.80" (12/05/11) 1 REF LOG: SINS VISION RESISTIVITY ON 11/10/01 ANGLE AT TOP PERF: WA k 9933' H7" X 5" BKR ZXP LTPw / C2 PROFLE, ID = 4.34" I Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sgz DATE 9937' H412 WLEG, ID= 3.958" W-21A 9947' H' X 5" BKR FLEX LOCK HY D LNR HGR ID = 4.408" 2-1/2" 4 10464- 10548 0 11/16/01 9956' 5' X41/2"XO,ID =3.97 2-1/2" 4 10600- 10674 0 11/16/01 (� 2-1/2' 4 12897 - 13299 0 11/16/01 2 -12" 4 13404 - 13535 0 11/16/01 MILLOUT WINDOW (W 21AL1) 10474' - 10483' 2 -12" 4 13750 - 14128 0 11/16/01 — 2 -1/2" 4 14170 - 14305 0 11/16/01 10501' —I BTT SHORTY DEPLOY SLV, ID = 2.370" I 2-1/2" 4 14335 - 14380 0 11/16/01 2-1/2" 4 14595 - 14710 0 11/16/01 _ 2-1/2" 4 14725 - 14785 0 11/16/01 T = = -- � _ W -21A L1 r 2 -7/8" LNR, 6.16 #, L -80 STL, 11752' I 2 -718" SLTD 10529 - 11883 0 12/10/11 .0058 bpf, ID = 2.440 W -21A L1 -01 — _ 2-7/8" SLTD 10505 - 11174 O 12/15/11 • 2 -7/8" SLTD 11578 - 11736 0 12/15/11 , — — Cr -- 10510' 18TTALUMNUM BILLET, ID =1.00" I 2 -7 /8" LNR, 6.2#, L -80 STL, H 11895' I I PBTD I-1 14805' 1 .0058 bpf, ID = 2.441" 14-1/2" LNR, 12.6#, L -80 IBT -M, .0152 bpf, ID = 3.958" H 14892' -21 • 12711' Ha-v2" MARKER JOINT I DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 04123/89 AUDI 3 ORIG COMPLETION 04/18/12 PJC NIP RELY PLUG CORRECTIONS WELL: W-21A / L1 & L1 -01 10/31/90 0-16 RNO 04/20/12 JCM/ PJC SET PATCH (04/17/12) PERMT No: 2011110 (2111310) (2111320) 11118/01 N9ES SIDETRACK (W -21A) 04/20/12 TJHI PJC GLV GO (04/19/12) API No: 50- 029 - 21929 -01 (60) (61) 12/19111 NORDIC 1 CTD MI (W -21A L1 & L1 -01) 04/20/12 TJI-V PJC PULL XX PLUG SEC 21, T11 N, R12E, 627' FNL & 1180' FEL 04/10/12 MSS/JMD PULL PX PLUG (04/09/10) 04/10/12 MSS/JMD, SET MP RED & XX PLUG (04/10/12) BP Exploration (Alaska) tat -til 2-(161 Schhoberger No. 5785 30 -AUG -2011 Alaska Data & Consulting Services Company: State of Alaska 2525 Gambell Street, Suite 400 2 . 1 ) 2 Alaska Oil & Gas Cons Comm Anchorage, AK 99503 -2838 Attn: Christine Shartzer ATTN: Stephanie Pacillo 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Well Job # Log Description Date BL Color CD MPL -09 BUTT -00007 MEMORY IPROF _ 8- Aug -11 1 1 MPF-62 BCRC -00117 MEMORY IPROF 20- Aug -11 1 _ 1 Z -108 BINC -00058 D/T SBHPS 18- Aug -11 1 1 V -122 BCRJ -00109 PRODUCTION PROFILE 17- Aug -11 1 _ 1 W -21A AWJI -00157 SBHPS 14- Aug -11 1 1 C -30A BAUJ -00103 PPROF W/ GHOST 20- Aug -11 7 1 1 C -37B BINC -00060 CEMENT BOND LOG 20- Aug -11 1 A -19 BSM4 -00019 PRODUCTION PROFILE 21- Aug -11 1 1 P1 -17 BJGT -00061 PPROF W/ GHOST 19- Aug -11 1 1 MPC -06 BUTT -00008 IPROF 8- Aug -11 1 1 C -30A BAUJ -00103 DEPTH DETERMINATION LOG 20- Aug -11 1 1 2 -04/M -19 AV1P -00100 PPROF W /DEFT & GHOST 8- Aug -11 1 1 ill PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Alaska Data & Consulting Services Petrotechnical Data Center LR2 -1 2525 Gambell Street, Suite 400 900 E. Benson Blvd. Anchorage, AK 99503 -2838 Producers with sustained casing pressuon IA during proration • Page 1 of 1 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWelllntegrityCoordinator @bp.com] Sent: Saturday, July 23, 2011 9:03 PM kg-6( -2i-1 To: Regg, James B (DOA); Maunder, Thomas E (DOA); Schwartz, Guy L (DOA); Cismoski, Doug A; Daniel, Ryan; AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operations Team Lead; AK, OPS Prod Controllers; AK, OPS GC2 OSM; AK, OPS GC2 Ops Lead; AK, OPS GC2 Wellpad Lead; AK, OPS GC2 Field O &M TL; AK, OPS GC2 OSS; AK, OPS GC3 Wellpad Lead; AK, OPS GC3 Facility & Field OTL; AK, OPS GC3 OSS; AK, RES GPB West Wells Opt Engr; AK, D &C Well Integrity Coordinator Cc: Grey, Leighton (CH2M Hill); Reynolds, Charles (ALASKA); Townsend, S. Eliot' Subject: Producers with sustained casing pressure on IA during proration aol- I All, The following producers were reported to have sustained casing pressure on the IA during the proration and shutdown activity July 21 -23. The immediate action is to perform a TIFL on each of the wells and evaluate for IA repressurization. If any of the wells fail the TIFL, a follow up email will be sent to the AOGCC for each individual well. !, ?x,,` i4ED JUL s 201; -43 (PTD #1970520) wzt .1 PTD # % ✓ Zo l MO 1 n A -37 (PTD #1930070) All the wells listed above will be re- classified as Not Operable until start -up operations are complete and stable or the well passes a pressure test proving integrity. After start -up, the wells will then be reclassified as Under Evaluation with POP parameters to prevent any over - pressure incidents. Please call with any questions or concerns. Thank you, Taylor Taylor Wellman filling in for Mehreen Vazir /Jerry Murphy Office: 659 -5102 Pager: 659 -5100 x 1154 7/28/2011 Page 1 Regg, James B (DOA) 1— t 1( • From: AK, D &C Well Integrity Coordinator [ AKDCWelllntegrityCoordinator @bp.com] i Z-1 Sent: Friday, February 11, 2011 4:08 PM To: Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Oakley, Ray (PRA) Cc: AK, D &C Well Integrity Coordinator; Walker, Greg (D &C); King, Whitney Subject: OPERABLE: Producer W -21A (PTD #2011110) Tubing Integrity Confirmed All, Artificially lifted producer W -21A (PTD #2011110) passed a TIFL on 2/10/2011 after returning the well to production confirming the gas lift valve check valves hav e_ a ed and the well has tubing integrity. The well has been reclassified as Operable. Please call if you have any questions. Thank you, Gerald Murphy (alt. Torin Roschinger) (� t Well Integrity Coordinator Office (907) 659 -5102 Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 From: AK, D &C Well Integrity Coordinator Sent: Saturday, January 22, 2011 11:21 PM To: 'Maunder, Thomas E (DOA)'; 'Regg, James B (DOA)'; 'Schwartz, Guy L s •A)'; AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well P•. SW; AK, OPS Prod Controllers; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Op- ations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt E • r; AK, RES GPB East Wells Opt Engr; Oakley, Ray (PRA) Cc: AK, D &C Well Integrity Coordinator; Walker, Greg (D: ' ; King, Whitney Subject: UNDER EVALUATION: Producer W -21A (PTD 2011110) Sustained Casing Pressure on the IA - POP to perform TxIA diagnostics All, Artificially lifted producer W -21A (PTD # .11110) was classified as Not Operable during the shut down due to sustained casing pressure. Th- ellhead pressures were tubing /IA/OA equal to 160/2080/100 psi on 01/14/2011. The well has been reclassified as Under Evaluation so that it may be placed on production to perform diagnostics. The OA fluid level is near rface; please be careful of thermal expansion when placing W- 21A on production. Plan forward: 1. DHD: TIFL 2. Well Integrity ngineer: Write work request to mitigate TxIA communication pending TIFL results A TIO plot a • wellbore schematic have been included for reference. Please if you have questions or concerns. Thank'you, 2/14/2011 Page 1 • 701 -14 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWeIIIntegrityCoordinator @bp.com] Sent: Saturday, January 22, 2011 11:21 PM -- Reg I/7 ;1u To: Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; Oakley, Ray (PRA) Cc: AK, D &C Well Integrity Coordinator; Walker, Greg (D &C); King, Whitney Subject: UNDER EVALUATION: Producer W -21A (PTD #2011110) Sustained Casing Pressure on the IA - POP to perform TxIA diagnostics Attachments: Producer W -21A (PTD #2011110) Welibore Schematic.pdf; Producer W -21A (PTD #2011110) TIO Plot.doc All, Artificially lifted producer W -21A (PTD #2011110) was classified as Not Operable during the shut down due to sustained casing pressure. The wellhead pressures were tubing /IA/OA equal to 160/2080/100 psi on 01/14/2011. The well has been reclassified as Under Evaluation so that it may be placed on production to perform diagnostics. The OA fluid level is near surface; please be careful of thermal expansion when placing W -01A on production. Plan forward: 1. DHD: TIFL 2. Well Integrity Engineer: Write work request to mitigate TxIA communication pending TIFL results A TIO plot and wellbore schematic have been included for reference. Please call if you have questions or concerns. Thank you, Gerald Murphy (alt. Torin Roschinger) �� ` E X01 Well Integrity Coordinator Office (907) 659 -5102 Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 From: AK, D &C Well Integrity Coordinator Sent: Friday, January 14, 2011 10:34 PM To: 'Regg, James B (DOA)'; 'Maunder, Thomas E (DOA)'; 'Schwartz, Guy (DOA)'• ismoski, Doug A; Engel, Harry R; AK, D &C Well Services Operations Team Lead; AK, D &C • - ine Operations Team Lead; AK, OPS FS2 DS Ops Lead; AK, OPS FS2 Ops Lead; AK, OPS FS2 OSp, 'K, OPS FS2 OSS; AK, RES GPB East Wells Opt Engr; AK, OPS GC3 Wellpad Lead; AK, OPS GC3 - ,cility & Field OTL; AK, OPS GC1 OSM; AK, OPS Prod Controllers; AK, OPS GC2 OSM; AK, OPS GC ps Lead; AK, OPS GC2 Wellpad Lead; AK, OPS GC2 Field O &M TL; AK, OPS GC2 OSS; AK, OPS W= Pad DFT N2; AK, OPS GC1 Wellpad Lead; AK, OPS GC1 OSM; AK, OPS GC1 Field O &M TL; AK, R PB West Wells Opt Engr Cc: AK, D &C Well Integrity Coordinator; King, ■ itney; Bommarito, Olivia 0; Robertson, Daniel B (Alaska); Ramsay, , Gavin; Stone, Christoph- Kirchner, Carolyn J; Longden, Kaity; Phillips, Patti J; Sayed, Y Mohamed; Holt, Ryan P (ASRC) Subject: Producers with sustained =sing pressure on IA and OA due to proration All, 1/25/2011 PBU W -21A PTD # 2011110 1/22/2011 TIO Pressures Plot Well: W -21 4.000 3,000 - • —►— Tbg --f— lA 2,000 - —41,— OA O0A —41— 000A On r { 1,000 - 10/23/10 10/30/10 11/06/10 11/13/10 11/20/10 11/27/10 12/04/10 12/11/10 12/18/10 12/25/10 01/01/11 01/08/11 01/15/11 — ; • TREE= 4- 1/16" McEVOY . WELLHEAD = McEVOY SAFETY IS: 4-1/2" CHROME TBG. WELL ACTUATOR = BAKER VI-2 1 A ANGLE> 70° @ 10370' & > 90° @ 11056'. KB. ELEV = 82.72' BF. ELEV = 54.46' KOP = 4900' Max Angle = 97'6 12645' 2 Datum MD = .. _ 10300' , ' 2209' H 4-1/2" HES X NIP, ID = 3.813" 1 Datum TVD = 8800' SS 13 -3/8" CSG, 68 #, L -80, ID = 12.415" H 2710' Ha ® GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3107 3022 0 MMG DMY RK 0 11/18/01 5 3636 3551 0 MMG DOME RK 16 12/11/01 4 5928 5762 31 MMG DOME RK 16 12/11/01 Minimum ID = 3.725" @ 9925' 3 6929 6515 42 MMG DMY RK 0 11/18/01 2 8309 7506 46 MMG DOME RK 16 11/18/01 4 -1/2" HES XN NIPPLE 1 9812 8565 54 KBG -2 SO BK 22 07/30/07 PERFORATION SUMMARY , REF LOG: SWS VISION RESISTIVITY ON 11/10/01 631-----1 9142' I- I9 -5!$" X 7" BKR ZXP PKR, ID = 6.270" , ANGLE AT TOP PERF: 77 @ 10464' 9155' 1- 19 -5/8" X 7" BKR HMC HGR, ID = 6.270" I Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn /Sqz DATE 2 -1/2" 4 10464 - 10548 0 11/16/01 2 -1 /2" 4 10600 - 10674 0 11/16/01 9-5/8" MILLOUT WINDOW 2-1/2" 4 12897 - 13299 0 11/16/01 9327' - 9343' (OFF WHIPSTOCK) 2 -1/2" 4 13404 - 13535 0 11/16/01 2 -1/2" 4 13750 - 14128 0 11/16/01 to- 2 -1/2" 4 14170 - 14305 0 11/16/01 1 9871' 1-14 -1/2" HES X NIP, ID = 3.813" I 2 -1/2" 4 14335 - 14380 0 11/16/01 2 -1/2" 4 14595 - 14710 0 11/16/01 „� 1 9881' 1-17” X 4 -1/2" BKR S -3 PKR, ID = 3.875" 1 2 -1/2" 4 14725 - 14785 0 11/16/01 ` � ;; 9905' 1--1 -1 /2" HES X NIP, ID = 3.813" 1 \\ 9925' H4 -1/2" HES XN NIP, ID = 3.725" I f "f'Yf"f " " "tf"1" NN 04 9 93 1� 7' 4 -112" WLEG, ID = 4.00" IN11 1 ! 1 1 1 1111 1 1 1 1 1 1 1 ♦1 ,1.1.1.1.1.1.1.1.1.1.1 I•. 19 -5/8" CSG, 47 #, L -80, ID = 8.681" 1---I 10121' `. 12711 —14 -112" x 20' MARKER JT 1 ` 14 -1/2" TBG, 12.6 #, 13- CR -80, .0152 bpf, ID = 3.958" 1-{ 9936' • IT X 4 -1/2" BKR ZXP PKR/HGR, ID = 4.34" H 9933' • 17" LNR, 26 #, L -80, .0383 bpf, ID = 6.276" H 10085' • 4 PBTD -I 14803' 1 t.1 * 1 14 -1/2" LNR, 12.6 #, L -80, .0152 bpf, ID = 3.958" I-1 14892' I DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 04/23/89 ORIG COMPLETION 04/01/06 JRP /PJC GLV C/O WELL: W -21A 10/31/90 RWO 08/04/07 DTR/SV GLV C/O (07/30/07) PERMIT No: '2011110 11/18/01 RIG SIDETRACK API No: 50- 029 - 21929 -01 12/11/01 7 / TLP GLV CHANGES SEC 21, T11N, R12E, 626' SNL & 1180' WEL 12/28/01 CH/TP CORRECTIONS 06/25/03 KSB /KK SAFETY NOTE REVISION BP Exploration (Alaska) UNDER EVALUATION: Producer W A (PTD # 2011110) Sustained casing essure o the IA... Page 1 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWelllntegrityCoordinator @bp.com] ('Z<) It Sent: Tuesday, January 18, 2011 3:35 PM l To: Maunder, Thomas E (DOA); Regg, James B (DOA); Schwartz, Guy L (DOA); AK, OPS GC2 OSM; AK, OPS GC2 Field O &M TL; AK, OPS GC2 Wellpad Lead; AK, OPS Well Pad SW; AK, OPS Prod Controllers; AK, RES GPB West Wells Opt Engr; Cismoski, Doug A; Engel, Harry R; AK, D &C Wireline Operations Team Lead; AK, D &C Well Services Operations Team Lead Cc: King, Whitney; Kirchner, Carolyn J; Holt, Ryan P (ASRC); AK, D &C Well Integrity Coordinator Subject: UNDER EVALUATION: Producer W -21A (PTD # 2011110) Sustained casing pressure o the IA - Failed TIFL Attachments: W -21A TIO Plot 01- 18- 11.doc; W- 21A.pdf All, Producer W -21A (PTD # 2011110) has been found to have sustained casing pressure on the IA due to TxIA communication. The wellhead pressures were tubing /IA/OA equal to SSV /2080/100 on 01/14/11. On 01/17/11, a cold TIFL failed after the IA fluid level in -flowed 4300'md during the bleed. The well will be reclassified as Under Evaluation until the TxIA communication is repaired or the well is secured. The plan forward is as follows: 1. DHD: TIFL when online 2. Slickline: Change out OGLV KAtkliftV FEB 0 7 all 3. DHD: Re -TIFL A TIO plot and wellbore schematic have been included for reference. «W -21A TIO Plot 01- 18- 11.doc» «W- 21A.pdf» Please call if you have questions or concerns. Thank you, Torin Roschinger (alt. Jerry Murphy) Well Integrity Coordinator Office (907) 659 -5102 Harmony Radio x2376 Cell (406) 570 -9630 Pager (907) 659 -5100 Ext. 1154 From: AK, D &C Well Integrity Coordinator Sent: Friday, January 14, 2011 10:34 PM To: 'Regg, James B (DOA)'; 'Maunder, Thomas E % •A)'; 'Schwartz, Guy (DOA)'; Cismoski, Doug A; Engel, Harry R; AK, D &C Well Services Oper- - '•ns Team Lead; AK, D &C Wireline Operations Team Lead; AK, OPS FS2 DS Ops Lead; AK, OPS F •ps Lead; AK, OPS FS2 OSM; AK, OPS FS2 OSS; AK, RES GPB East Wells Opt Engr; AK, OPS G ellpad Lead; AK, OPS GC3 Facility & Field OTL; AK, OPS GC1 OSM; AK, OPS Prod Controllers; A., BPS GC2 OSM; AK, OPS GC2 Ops Lead; AK, OPS GC2 Wellpad Lead; AK, OPS GC2 Field O &M TL OPS GC2 OSS; AK, OPS Well Pad DFT N2; AK, OPS GC1 Wellpad Lead; AK, 1/25/2011 PBU W-21A PTD 2011110 1/18/2011 TIO Pressures Plot _-_-___- ___ __--__-_____--_-------------------------------- �— Well: W-21 4,000 - �� 300U- ' ��N --0-- —M—|A — :::: - - ——'' ~4^°~' -' -~` ''''-^' ' ,��~----.•• -~^ ^ . . . . . . . . . . . . • 10/23/10 11/06/10 11/20/10 12/04/10 12/18/10 01/081 01/15/11 TREE= 4- 1/16" McEVOY • WELLHEAD = McEVOY SAFETY OS: 4 -1/2" CHROMETBG. WELL ACTUATOR = BAKER W-21A ANGLE > 70 @ 10370' & > 90 @ 11056'. KB. ELEV = 82.72' BF. ELEV = 54.46' - KOP = 4900' Max Angie = 97 @ 12645' Datum MD = 10300' I I , I 2209' I—I 4 -1/2" HES X NIP, ID = 3.813" I :Datum TV D = 8800' SS 113 -3/8" CSG, 68 #, L -80, ID = 12.415" H I 2710' • GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3107 3022 0 MMG DMY RK 0 11/18/01 E■ii 5 3636 3551 0 MMG DOME RK 16 12/11/01 4 5928 5762 31 MMG DOME RK 16 12/11/01 Minimum ID = 3.725" @ 9925' 3 6929 6515 42 MMG DMY RK 0 11/18/01 2 8309 7506 46 MMG DOME RK 16 11/18/01 4 -1/2" HES XN NIPPLE 1 9812 8565 54 KBG -2 SO BK 22 07/30/07 PERFORATION SUMMARY REF LOG: SWS VISION RESISTWITY ON 11/10/01 0 9142' H9-5/8" X 7" BKR ZXP PKR, ID = 6.270" E r ANGLE AT TOP PERF: 77 @ 10464' 9155' I X 7" BKR HMC HGR, ID = 6.270" Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn /Sqz DATE 2 -1/2" 4 10464 - 10548 0 11/16/01 2 -1/2" 4 10600 - 10674 0 11/16/01 9 - 5/8" MILLOUT WINDOW 2-1/2" 4 12897 - 13299 0 11/16/01 9327' - 9343' (OFF WHIPSTOCK) 2 -1/2" 4 13404 - 13535 0 11/16/01 2 -1/2" 4 13750 - 14128 0 11/16/01 2 -1/2" 4 14170 - 14305 0 11/16/01 I 9871' 1- 14 -1/2" HES X NIP, ID = 3.813" I 2 -1/2" 4 14335 - 14380 0 11/16/01 ='" 2 -1/2" 4 14595 - 14710 0 11/16/01 , 1 9881' I-17" X 4 - 1/2" BKR S - PKR, ID = 3.875" I 2 -1/2" 4 14725 - 14785 0 11/16/01 � � 4. 9905' 1 - 14 - 1/2" HES X NIP, ID = 3.813" I \\\ 9925' 1 HES XN NIP, ID = 3.725" I � 't 1 o- 9937' 4 -1/2" WLEG, ID = 4.00" I i + i + + + i0 + i + i + i + i + * I9 -5/8" CSG, 47 #, L -80, ID = 8.681" H 10121' ` ` 12711 — I4 -1/2" x 20' MARKER JT I 14 -1/2" TBG, 12.6 #, 13- CR -80, .0152 bpf, ID = 3.958" H 9936' • 17" X 4-1/2" BKR ZXP PKR/HGR, ID » 4.34" H 9933' ` 17" LNR, 26 #, L -80, .0383 bpf, ID = 6.276" f-J 10085 44 4 PBTD —I 14803' I • ��+� N f ■ 4 -1/2" LNR, 12.6 #, L -80, .0152 bpf, ID = 3.958" Fl 14892' I DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 04/23/89 ORIG COM PLETION 04/01/06 JRP /PJC GLV C/O WELL: W - 21A 10/31/90 RWO 08 /04/07 DTR/SV GLV C/O (07/30/07) PERMIT No: 2011110 11/18/01 RIG SIDETRACK API No: 50 -029- 21929 -01 12/11/01 ? / TLP GLV CHANGES SEC 21, T11 N, R12E, 626' SNL & 1180' WEL 12/28/01 CH/TP CORRECTIONS 06/25/03 KSB /KK SAFETY NOTE REVISION BP Exploration (Alaska) • • Page 1 of 1 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [ AKDCWelllntegrityCoordinator ©bp.com] Sent: Friday, January 14, 2011 10:34 PM efq //m1/( To: Regg, James B (DOA); Maunder, Thomas E (DOA); Schwartz, Guy L (DOA); Cismoski, Doug A; Engel, Harry R; AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operations Team Lead; AK, OPS FS2 DS Ops Lead; AK, OPS FS2 Ops Lead; AK, OPS FS2 OSM; AK, OPS FS2 OSS; AK, RES GPB East Wells Opt Engr; AK, OPS GC3 Wellpad Lead; AK, OPS GC3 Facility & Field OTL; AK, OPS GC1 OSM; AK, OPS Prod Controllers; AK, OPS GC2 OSM; AK, OPS GC2 Ops Lead; AK, OPS GC2 Wellpad Lead; AK, OPS GC2 Field O &M TL; AK, OPS GC2 OSS; AK, OPS Well Pad DFT N2; AK, OPS GC1 Wellpad Lead; AK, OPS GC1 OSM; AK, OPS GC1 Field O &M TL; AK, RES GPB West Wells Opt Engr Cc: AK, D &C Well Integrity Coordinator; King, Whitney; Bommarito, Olivia 0; Robertson, Daniel B (Alaska); Ramsay, Gavin; Stone, Christopher; Kirchner, Carolyn J; Longden, Kaity; Phillips, Patti J; Sayed, Mohamed; Holt, Ryan P (ASRC) Subject: Producers with sustained casing pressure on IA and OA due to proration All, The following producers were found to have sustained casing pressure on the IA during the proration January 12 -14. The immediate action is to perform a TIFL on each of the wells and evaluate for IA repressurization. If any of the wells fail the TIFL, a follow up email will be sent to the AOGCC for each individual well. 11 -05A (PTD #1961570) C -15A (PTD #2090520) E -17A (PTD #2042040) E -27A (PTD #1990590) F -04B (PTD #2100870) W -01A (PTD #2031760) A .1. PTD #2031000) .d -21A PTD #2011111 W -25' (P • ° 1•10 W -38A (PTD #2021910) The following producers were found to have sustained casing pressure on the OA during the proration January 12 -14. The immediate action is to perform an OA repressurization test and evaluate if the IAxOA pressure is manageable by bleeds. If the IAxOA communication is unmanageable, a follow up email will be sent to the AOGCC notifying you of the remedial plan. 09 -34A (PTD #1932010) M -21A (PTD #1930750) N -22B (PTD #2061610) All the wells listed above will be classified as Not Operable until start -up operations commence and are stable or the well passes a pressure test proving integrity. After start-up, the wells will then be reclassified as Under Evaluation with POP parameters to prevent any over - pressure incidents. Please call with any questions or concerns. Thank you, Torin Roschinger (alt. Jerry Murphy) Well Integrity Coordinator Office (907) 659 -5102 Harmony Radio x2376 Cell (406) 570 -9630 Pager (907) 659 -5100 Ext. 1154 1/24/2011 o7/oano • Schla~6erger Alaska Data & Consulting Services 2525 Gambell Street, Suae 400 Anchorage, AK 99503.2838 ATTN: Beth Well Job # Log Description Date BL ~. u 04-05 AYKP-00086 JEWELRY LOG/PERF RECORD 06/25/10 1 L-203 P-28 83S0-00065 AY1 M-00047 USIT USIT 05/02/10 06/08/10 1 1 P-28 N-01A BB6M-00018 AYKP-00092 SONIC CBL a PRODUCTION PROFILE 06/14/10 07/05/70 1 1 1 1 8-01 N-16 BCR0.0003/ BCR0.00032 LEAK DETECTION LOG PRODUCTION PROFILE 07/02/10 .07/04/10 1 1 1 1 W-21A H-02A BAUD-00034 AYKP-00088 MEMORY PROD PROFILE USIT - 07!03/10 06/26/10 1 1 1 1 B-138 N-23A AYKP-00091 B5JN-00048 SCMT RST 07/02/10 04/16/10 1 1 1 1 B-21 B3S0-00062 RST 04/28/10 1 1 \ BP Exploration (Alaska) Inc. _~_ V Petrotechnical Data Center LR2-1 900 E. Benson Blvd. N0.5557 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 ~ ~ ~ ~ ~ I Color CD o 1 1 Alaska Data 8 Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503.2938 ,;~,_ ~~ ~a~o d~ STATE OF ALASKA ALAS~OIL AND GAS CONSERVATION COMM ION REPORT OF SUNDRY WELL OPERATIONS ~~+~~I~~,b. -3~~~-09 ~ AY ~ `~ Z0~ ~: 1. Operations Abandon ~ Repair Well ~ Plug Perforations ~ Stimulate ^~ r, . O r , ~~ ~ Performed: Alter Casing ~ Pull Tubing ~ Perforate New Pool ~ Waiver ~ ~i e`E~xfe son `~ ~~ ~ : , Change Approved Program ~ Operat. Shutdown ~ Perforate ~ Re-enter Suspended We ~ -- 2. Operator BP Exploration (Alaska), Inc. 4. Current Well Class: 5. Permit to Drill Number: Name: Development Exploratory 201-1110 - 3. Address: P.O. Box 196612 StratlgraphlC Service 6. API Number: Anchorage, AK 99519-6612 50-029-21929-01-00- 7. KB Elevation (ft): 9. Well Name and Number: 82.72 DF - PBU W-21A - 8. Property Designation: 10. Field/Pool(s): ADLO-047451 ~ PRUDHOE BAY Field/ PRUDHOE OIL Pool 11. Present Well Condition Summary: Total Depth measured 14892 - feet Plugs (measured) None true vertical 8976.26- feet Junk (measured) None Effective Depth measured 14805 - feet true vertical 8975.75 - feet Casing Length Size MD ND Burst Collapse Conductor 110 20" Surface - 138 Surface - 138 Surface 2682 13-3/8" 68# L-80 Surface - 2710 Surface - 2708 4930 2270 Intermediate 9299 9-5/8" 47# L-80 Surface - 9327 Surface - 8345 6870 4760 Liner 943 7" 26# L-80 9142 - 10085 8210 - 8788 7240 5410 Sidetrack Liner 4959 4-1/2" 12.6# L-80 9933 - 14892 8713 - 8976 8430 7500 Perforation depth: Measured depth: SEE ATTACHED - _ _ _ _ True Vertical depth: _ _ _ _ _ Tubing: (size, grade, and measured depth) 4-1/2" 12.6# 13CR80 SURFACE - 9936' 0 0 - Packers and SSSV (type and measured depth) 9-5/8"X7" BKR ZXP PKRQ - °- -• 9142' 7"X4-1/2" BKR S-3 PKR 9881' 7"X4-1/2" BKR ZXP PKR 9933' 0 0 12. Stimulation or cement squeeze summary: Intervals treated (measured): ~~~~~p~ ~~,. ~R; ~ ~ ~j (1 !~ 4'J'i: L-+~ tnrri'om„ '~-~ ~4 l \ ~S y~,.~ L; wN 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: 160 224 297 297 Subsequent to operation: 157 209 305 313 14. Attachments: 15. Well Class after oroposed work: Copies of Logs and Surveys Run Exploratory ~ Development ~° Service Daily Report of Well Operations X 16. Well Status after proposed work: Oil Gas ~ WAG GINJ ~ WINJ ~ WDSPL 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: N/A Contact Gary Preble Printed Name Gary Pre a Title Data Management Engineer Signature Phone 564-4944 Date 5/27/2009 Form 10-404 Revised 04/2006 ~-- - ~ S~U1V ~ ~ 2~,1)~ / `, ~ ,(~,_('„~~ubmiti2~~~~q ~"` -/ W-21 A 201-111 PERF ATTACHMENT • Sw Name Operation Date Pert Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base W-21A 11/16/01 PER 10,464. 10,548. 8,934.98 8,951.63 W-21A 11/16/01 PER 10,600. 10,674. 8,960.89 8,975.02 W-21A 11/16/01 PER 12,897. 13,299. 8,976.16 8,973.61 W-21A 11/16/01 PER 13,404. 13,535. 8,976.92 8,981.67 W-21A 11/16/01 PER 13,750. 14,128. 8,978.12 8,963.66 W-21A 11/16/01 PER 14,170. 14,305. 8,965.79 8,971.28 W-21A 11/16/01 PER 14,335. 14,380. 8,972.28 8,973.56 W-21A 11/16/01 PER 14,595. 14,710. 8,977.87 8,975.62 W-21A 11/16/01 PER 14,725. 14,785. 8,975.52 8,975.71 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 • • W-21A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY ACTIVITYDATE SUMMARY ~ 5/20/20Q9 i Road and arrive on location, check in w/ CTU ~ 5/20/2009!CTU#6 1.75" CT Job Scope: Drift/Mud Acid Stim <InterACT is Publishing> MIRU °CTU. MU 3" DJN BHA and RIH to TD at 14,797' ctm. PUH to 14,787' ctm flag 'pipe. POOH. At surface MU BHA with 2.40" JSN and RIH "**Job in Progress""* 5/21/2009 *''*Continued AWGRS from 05-20-09"** Assist CTU (Pre acid stim) Loaded IA w/ 5 bbls neat methanol and 589 bbls of crude prior to acid iob. Final WHP's= 200/100/60 CTU still on well at LRS departure. 5/21 /2009 CTU#6 1.75" CT Job Scope: Drift/Mud Acid Stim <InterACT is Publishing>*** Job continued from 5/20/2009*"" Continue RIH w/ 2.40" JSN. Tie In LRS to Inner Annulus and loaded 589 bbls of dead Crude. UTIM showing some damaged spots on the pipe. Inspected and noticed some scratches between `(13,493' to 13,520') on the pipe. Order for Ultrasonic Tester. Continue RIH to flag. At flag correct depth to 14,787' CTM. PUH and pack at damaged spot. Wait on Ultrasonic Tester. All areas that triggered the UTIM are within spec as Ifar as wall thickness and just saw some minor scarring/abrasion, continue with Acid job. 19:00 at stage 19 of 23. At flag depth displace well with Amonium Chloride and 120 bbls of diesel cap. Pump acid as per program using 150 bbls of 12% Hcl and 150 bbls of 9:1 Mud Acid, 3 foam divert stages between 4 acid and over dis final TP/IAP/OAP = 573/0/53 psi. At s 5/22/09*** sae. i ne on WSR 5/21/2009~ASRC Test Unit #1, Assist CTU w/Acid flowback, *"*Job in progress*"* 5/22/2009~CTU #6 1.75" OD CT, Job Scope. Drift/Mud Acid Stim<InterACT publishing> **** Job continue from 5/21/09*"* PT Tree cap to 4,000 psi and handed well to ~ASRC for Acid flow back""" Job Complete**" FLUIDS PUMPED BBLS 340 3% NH4C1 47 50/50 METH 120 DIESEL 150 12% HCL 150 9:1 MUD 60 3% NH4C1 + F103, 5% U067 23 3% NH4C1 + J529 OILSEEKER 890 Total OPERABLE: W-21 A (PTD #1110) TIFL Passed • Page 1 of 2 Regg, James B (DOA} From: NSU, ADW Well Integrity Engineer (NSUADWWeIIlntegrityEngineer@BP.com] ~~~ ~~Z~-j~,~~ Sent: Saturday, March 14, 2009 11:30 AM To: Regg, James B (DOA); Maunder, Thomas E (DOA); GPB, Area Mgr West (GC2NVRD); GPB, GC2 OTL; GPB, GC2 Wellpad Lead; GPB, Well Pad SW; Rossberg, R Steven; Engel, Harry R; NSU, ADW Well Operations Supervisor; GPB, Wells Opt Eng; GPB, Optimization Engr; GPB, Prod Controllers; Robertson, Daniel B (Alaska) Cc: Quy, Tiffany; NSU, ADW Well Integrity Engineer Subject: OPERABLE: W-21A (PTD #2011110) TIFL Passed all, Well W-21A (PTD #2011110) passed a TIFL on 03/11/09 confirming the check in the oas lift valve seated and mitigated the sustained cash g rep ssure on the IA. The well has been reclassified as Operable. Please let us know if you have any questions. Thank you, Anna ~u6e, ~ E. Well Integrity Coordinator GPB Wells Group Phone: (907} 659-5102 Pager: (907} 659-5100 x1154 From: NSU, ADW Well Integrity Engineer Sent: Saturday, March 07, 2009 1:41 PM ` }.~s~ - ~.i1u;e To: 'Regg, James 6 (DOA)'; 'Maunder, Thomas E (DOA)'; GPB, Area Mgr West (GC2/WRD); GPB, GC2 OTL; GPB, GC2 Wellpad Lead; GPB, Well Pad SW; Rossberg, R Steven; Engel, Harry R; NSU, ADW Well Operations Supervisor; GPB, Wells Opt Eng; GPB, Optimization Engr; GPB, Pmd Controllers; Robertson, Daniel B (Alaska) Cc: NSU, ADW Well Integrity Engineer; Quy, Tiffany Subject: UNDER EVALUATION: W-21A (PTD #2011110) High IA Pressure All, Well W-21A (PTD #2011110) has been found to have sustained casing pressure on the IA. The TIOs were SSV/2200/42 psi on 03/06/09. However, due to SimOps issues because the pad is temporarily shut-in, we cannot perform further diagnostics on the well. The well has been reclassified as Under Evaluation for further diagnostics once the pad is back online. The plan forward for the well is as follows: 1. D: TIFL 2. S: C/O GLVs if TIFL fails 3. D: Re-TIFL A wellbore schematic and TIO plot have been included for reference. Please call with any questions or concerns. 3/24/2009 OPERABLE: W-21A (PTD #~l 110) TIFL Passed • Page 2 of 2 Thank you, Andrea Hughes Well Integrity Coordinator Office: (907) 659-5102 Pager: (907) 659-5100 x1154 3/24/2009 PBU W-21A PTD 201-111 3/7/2009 a r~ori r~00 2,000 i,orn TIO Pressures # Tbg -F IA -~ OA OOA + OOOA On i t1~t~,~0'u' 12120102 1212?, 00' 01?0;03 Olit0105 Oilt"rf0'3 Ot!?a103 Otr31i00 02?0?r03 02I1a109 ~k'i2i?0'1 02?20103 TREE= 4-1(16" McEVOY WELLHEAD= McEVOY ACTUATOR= BAKER KB. ELEV - 82.72` BF. ELEV = 54.46' KOP = 4900' Max Angle = 97 @ 12645' Datum MD = 10300' Datum TV D = 8800' SS 13-3l8" CSG, 68#, L-80, O = 12.415" Minimum ID = 3.725" @ 9925' 4-1/2" HES XN NIPP<_E PERFORATION SUMMARY REF LOG: SWS VISION RESISTIVffY ON 11?10(01 ANGLE AT TOP F'ERF: 77 @ 10464' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn(Sgz DATE 2-1/2" 4 10464- 10548 O 11(16(01 2-1(2" 4 10600 - 10674 O 11(16101 2-1(2" 4 12897 - 13299 O 11/16J01 2-1(2" 4 13404- 13535 O 11(16(01 2-1/2" 4 13750 - 14128 O 11(16(01 2-1(2" 4 14170 - 14305 O 11(16(01 2-1(2" 4 14335-14380 O 11(16(01 2-1(2" 4 14595-14710 O 11(16(01 2-1(2" 4 14725 - 14785 O 11l16(Oi 9-5i8" CSG, 47#, L-80, ID = 8.681" ( 10121' 4-1(2" TBG, 12.6#, 13-CR 80, .0152 bpf, ID = 3.958" 9936' 7" X 4-1(2" BKR ZXP PKR(HGR, ~ = 4.34" 9933' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 100$5' 14-1(2" x 20' MARKER JT II PBTD I-i 14803' 4-1/2" WR, 12.6#, L-84, .0152 b¢f, ID = 3.958" DATE REV BY COMMENTS DATE REV BY COMMENTS 04(23(89 ORIGCOMPLEfION 04/01(06 JRP(PJC GLVC(O 10/31(90 RWO 08(04(07 DTR(SV GLV C!O (07(30107) 11(18!01 RIG SIDETRACK 12(11101 ? (TLP GLV CHANGES 12(28(01 CH/TP CORRECTIONS 06!25/03 KSBIKK SAFETY NOTE REVISION PRUDHOE BAY UNIT WELL: W-21A PERMt>• No: ~20i 1110 API No: 50-029-21929-01 SEC 21, T11N, R12E, 626` SNL & 1180` WEL BP Expiaratian (Alaska) W-21 A ~ 4-1(2" HES X NIP, 0= 3.813" ~ GAS LIFT MANDRELS ST MD TVD DEV TYPE VLV LATCH PORT DATE 6 3107 3022 0 MMG DMY RK 0 11/18/01 5 3636 3551 0 MMG DOME RK 16 12/11(01 4 5928 5762 31 MMG DOME RK 16 12!11(01 3 6929 6515 42 MMG DMY RK 0 11/18/01 2 8309 7506 46 MMG DOME RK 16 11/18/01 1 9812 8565 54 KBG-2 SO BK 22 07(30/07 SAFETY NOTES: 4-112°' CHROMETBG WELL ANGLE > 70° @ 10370' & > 90° @ 11056'. 9'1Q.2' -~9-5(8" X 7" BKR ZXP PKR, ID = 6.270" 9155' 9-5(8" X 7" BKR HMC HGR, ID = 6.270" 9-5(8" MLLOUT WINDOW 9327' - 9343' (OFF WH~'STOCK) 9$71' -4-1(2" HES X NIP, ID = 3.813" 98$1' 7" X 4-1i2" BKR S-3 PKR, O = 3.875" 1-i 4-1l2" HES XNIP, O = 3.813" 5~ 4-1(2" HES XN NIP, ID = 3.725" 9937° 4-1(2" WLEG, ID = 4.00" W-21 A (PTD #2011110) Under Evaion for sustained casing pressure - TxI communication Page 1 of 1 Regg, James B (DOA) From: NSU, ADW Well Integrity Engineer [NSUADWWeIIlntegrityEngineer@BP.com] ./'~~ ~~~~°~ Sent: Thursday, September 20, 2007 9:13 PM To: Regg, James B (DOA); Maunder, Thomas E (DOA); GPB, Area Mgr West (GC2/WRD); GPB, GC2 OTL; Rossberg, R Steven; Engel, Harry R; NSU, ADW Weil Operations Supervisor; GPB, GC2 Wellpad Lead; GPB, Optimization Engr; GPB, Weils Opt Eng; NSU, ADW WL & Completion Supervisor Cc: NSU, ADW Well Integrity Engineer; Morales, Josh S (VECO) Subject: W-21A (PTD #2011110) Under Evaluation for sustained casing pressure - TxIA communication Attachments: W-21A.pdf; W-21A 90-day TIO PIot.BMP All, Well W-21A (PTD #2011110} has been found to have sustained casing pressure on the IA. The TIOs were 2000/2000/20 on 09/20/07 when a TIFL failed. The well has been classified as Under Evaluation and may be produced under a 28-day clock. The plan forward for this well is as follows: 1. D: TIFL -FAILED 2. S: C/O OGLV ~-. ~~ N~V x 4 20D? 3. D: Re-TIFL A wellbore schematic and 90-day TIO plot have been included for reference. «W-21A.pdf» «W-21A 90-day TIO PIot.BMP» Please call with any questions or concerns. Thank you, Andrea Hughes Well Integrity Coordinator Office: (907) 659-5102 Pager: (907) 659-5100 x1154 -~.> v~ P~ ~~Z ~..- 9/28/2007 • • b'OOO -~- ~doo do { 'dl f 6ql -~- LOOZJStO L LOOZltrt6 s ..... ~+~Id OIl 6Z-M LOOUSIL LOOZIOU9 0 ds~bw ~~, Oao'~ _ ' Ooo'z dS~f~N7 trI 000' £ -~.-~- 000' b TREE= 4-1116" McEVOY WELLHEAD= McEVOY ACTUATOR= BAKER KB. ELEV = 82.72' BF, F1_EV = 54.46' KOP = 4900' tJlax A€~gle = 97 @ 12645' Datum ~1D = 14300' Datum T11D = 8800' SS 2209' I~ 4-112" HES X NIP, ID = 3.813" 13-Sf8" CSG, 68#, L-80, ID = 12.415" ~~ 2710' GAS LIFT MANDRELS ST lV1D TVD DE1f TYPE VLV LATCH PORT DATE fi 3107 3022 D MMG DMY RK 0 11118101 5 3636 3551 0 MMG DOME RK 16 12111101 ~ . 4 5928 5762 31 4 Mh4G M DOME DMY RK K 16 12111/01 1 181 ~ t~L3~c~~ M11'ti1llUCtl ~® ,""~ 3. T2rJ" -7;f~r. H~S xN ~~PP~E 3 2 1 6929 8309 9812 6515 7506 8565 2 46 54 M G 1t1MG KBG-2 DOME SO R RK BK 0 16 22 1 01 1 1111$101 07(30107 PERFORATION SUMMARY REF LOG: SWS VISION RESISTIVITY ON 11110/01 ANGLE AT TOP PERF: 77 aC7 10464' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn?Sgz DATE 2-1f2" 4 10464 - 10548 O 11/16/01 2-1l2"` 4 10600 - 10674 fl 11116(01 2-112" 4 12897 - 13299 O 11116/01 2-1(2" 4 13404 - 13535 O 11/16/01 2-1/2" 4 13750- 14128 O 11116/01 2-tit" 4 14170- 14305 O 11(16.01 2-112" 4 14335 - 14380 O 11116!01 2-112" 4 14595 - 14710 fl 11/16/01 2-112" 4 14725 - 14785 O 11116/01 ,~ ANC~7oT @.10370'' & H 9o°N@ 1~ 05s ~~ `~ .\\ `~ ,~ . _- _. _.a 9-518" CSG; 47#, L-80, ID = 8.681" ~ 10121' 4-112" TBG, 12.6#, 13-CR-80..0152 bpf, ID = 3.958" 9936' 7" X 4-112" BKR ZXP PKRIHGR, ID = 4.34" 9933' 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 100$5' 12711° [-{4-1,'2" x 2C7` MARKERJT PBTD H 1 4-1/2" LNR, 12.6#, L-80, .0152 bpf, ID = 3.95$" DATE REV BY COMMENTS DATE REV BY COMMENTS 04123189 tJRlG COMPLETION 04101106 JRPtPJC GLV C/O 10131/90 RWO 08104/07 DTRlSV GLV CIO (07130107} 11!18101 RIG SIDETRACK 12!11!01 ? 1 TLP GLV CHANGES 12128!01 CHITP CORRECTIONS 06125103 KSBlKK SAFETY NOTE REVISION PRUDHOE BAY UNIT WELL: W-21A PERMIT Na X2011110 API No: 54-029-21929-01 SEC21, T11N, R12E, 626` SNL & 11$0` WEL BPlFxpfaration (Alaska) 9142' -~ 9-518" X 7" BKR ZXP PKR, ID = 6.270" 9155' 9-518" X 7" BKR Hh1C HGR, ID = 6.270" 9-518" MILLOIJT WINDOW 9327' - 9343' (OFF tNHIPSTOCK} 9$71' 4-112" HES X NIP, ID = 3.$13" 98$1' 7" X 4-1/2" BKR S-3 PKR, ID = 3.$75" 9905' --112" HES X NIP, ID = 3.813" 9125` 4-1l2" HES XN NIP, ~ = 3.725'° 9937' 4-112" WLEG, ID = 4A0„ W-21A (PTD #2011110) UNDER WLUATION for sustained casing press.- TxIA communication Regg, James B (DOA) Page 1 of 1 From: ~/{f 1{~{ù1 NSU, ADWWelllntegrity Engineer [NSUADWWelllntegrityEngineer@BP.com] Monday, July 23, 20078:22 PM Regg, James B (DOA); Maunder, Thomas E (DOA); Rossberg, R Steven; Engel, Harry R; GPB, Area Mgr West (GC2/WRD); NSU, ADW Well Operations Supervisor; GPB, Wells Opt Eng; GPB, Optimization Engr; GPB, Prod Controllers Cc: NSU, ADWWelllntegrity Engineer; Robertson, Daniel B (Alaska); Holt, Ryan P (ASRC) Subject: W-21A (PTD #2011110) UNDER EVALUATION for sustained casing pressure - TxlA communication Attachments: W-21A.pdf Sent: To: Hello All, Well W-21A (PTD #2011110) has been found to have sustained casing pressure on the IA. The TIO pressures were ¡,/" SSV/2060/0 psi on 07/20/07. The well failed a subsequent TIFL on 07/23/07 when the IA inflowed 3800'. The well is currently shut-in for surface line repairs, but has been classified as Under Evaluation and placed on a 28-day clock until repaired or secured. The plan forward is as follows: 1. D: TIFL - FAILED 2. S: C/O OGL V 3. D: Re-TIFL A wellbore schematic has been included for reference. «W-21A.pdf» Please call with any questions. Thank you, Andrea Hughes Well Integrity Coordinator Office: (907) 659-5102 Pager: (907) 659-5100 x1154 5t,;ANNE':¡ AUG () 6 2007 7/25/2007 TREE = 4-1/16" McE:VOY WB...LHEAD = McE:VOY ACTUATOR = BAKER KB. B...E:V = 82.72' BF. B...E:V = 54.46' KOP = 4900' Max Angle = 97 @ 12645' Datum MD = 10300' Datum TVD = 8800' 55 W-21A SA NOTES: 4-1/2" CHROMETBG. WELL ANGLE> 70° @ 10370' & > 90° @ 11056'. 2209' -i 4-1/2" HE5 X NIP, 10 = 3.813" I 113-3/8" CSG, 68#, L-80, 10 = 12.415" I Minimum ID = 3.725" @ 9925' 4-1/2" HES XN NIPPLE GAS LIFT MANORB...S ST MO TVD OE:V TYÆ VLV LA TCH PORT DATE 6 3107 3022 0 MMG OMY RK 0 11/18/01 5 3636 3551 0 MMG DOME RK 16 12/11/01 4 5928 5762 31 MMG DOME RK 16 12/11/01 3 6929 6515 42 MMG OMY RK 0 11/18/01 2 8309 7506 46 MMG DOME RK 16 11/18/01 1 9812 8565 54 KBG-2 SO BK 22 04/01/06 PERFORA TION SUMMARY REF LOG: SWS VISION RESISTIVITY ON 11/10/01 ANGLEAT TOP PERF: 77@ 10464' Note: Refer to Production DB for historical perf data SIZE 5PF INTERV AL Opn/Sqz DA TE 2-1/2" 4 10464 -10548 0 11/16/01 2-1/2" 4 10600-10674 0 11/16/01 2-1/2" 4 12897 -13299 0 11/16/01 2-1/2" 4 13404 -13535 0 11/16/01 2-1/2" 4 13750-14128 0 11/16/01 2-1/2" 4 14170 - 14305 0 11/16/01 2-1/2" 4 14335-14380 0 11/16/01 2-1/2" 4 14595 - 14710 0 11/16/01 2-1/2" 4 14725 - 14785 0 11/16/01 -19-5/8" X 7" BKR ZXP PKR, ID = 6.270" I -19-5/8" X 7" BKR HMC HGR, ID = 6.270" I 9-5/8" MILLOUT WINDOW 9327' - 9343' (OFF WHIPSTOCK) 19-5/8"CSG,47#,L-80,ID=8.681" I 10121' 14-1/2" TBG, 12.6#, 13-CR-80, .0152 bpf, 10 = 3.958" 17" X4-1/2" BKRZXPPKRlHGR, 10=4.34" I 17" LNR, 26#, L-80, .0383 bpf, ID = 6.276" I -i4-1/2" HES X NIP, 10 - 3.813" I -iT' X 4-1/2" BKR 8-3 PKR, ID = 3.875" -i4-1/2" HES X NIP, ID = 3.813" I -14-1/2" HES XN NIP, ID 3.725" I -14-1/2" WLEG, ID = 4.00" I 14-1/2" LNR, 12.6#, L-80, .0152 bpf, ID = 3.958" DATE 04/23/89 10/31/90 11/18/01 12/11/01 12/28/01 06/25/03 RE:V BY COMMENTS ORlG COM PLETION RWO RIG SIDETRACK GLV CHANGES CORRECTIONS SAFETY NOTE RE:VISION DA TE RE:V BY COMMENTS 04/01/06 JRP/PJC GLV ClO PRUDHOE BA Y UNIT WB...L: W-21A ÆRMIT No: "'2011110 API No: 50-029-21929-01 SEC 21, T11 N, R12E, 626' SNL & 1180' WB... ? /TLP CHfTP KSB/KK BP Exploration (Alaska) Schlumbepgep RECEIVED 06129107 NO. 4324 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Well Job# Log Description Date BL Color CD H-13 11676950 GAS ENTRY SURVEY 06/20/07 T C-41 11801077 LDL 06/19/07 1 A-30A 11661159 MEM PROD PROFILE 06/23/07 1 W-21 A 11661140 MEM PROD PROFILE 04121/07 1 E-21 B 11661157 MEM PROD PROFILE 06119/07 1 M-23 11626107 PRODUCTION PROFILE 06/23/07 1 01-21 11824330 PRODUCTION PROFILE 06/22/07 1 J-25A 11767130 MEM PROD PROFILE 06/18/07 1 Z-08A 11630483 GLSIPROD LOG 06122/07 1 M-34 11824330 PRODUCTION PROFILE 06/22/07 1 02-30B 11594512 LDL 06/23/07 1 Z-29 11686758 PRODUCTION PROFILE 06/15/07 1 S-38 11801078 LDL 06/20/07 1 H-37A 11594506 PPROFIIPROF (REVISED) 06/05/07 1 N-15 11637129 PROD PROFILE (REVISED) 06/13/07 1 Z-13A 11649962 MEM PROD PROF (REVISED) 04/21/07 1 P2·15A 11594511 SCMT 06/15/07 1 12-05 11676951 USIT (CEMENT) 06/24/07 1 12-05 11676951 USIT (CORROSION) 06/24/07 1 B-15 11626097 US IT 06/14/07 1 G-24A 11628750 SCMT 02/05/07 1 Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth JUL 0 3 zom íiJaska Oil & Gas Cons. Commission Anchorage . . PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 SCANNED JUL 0 5 2007 900 E. Benson Blvd. Anchorage, Alaska 99508 Date Delivered: {)() {-=--ill Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Received by: W-2IA (PTD #2011110) Classified as Problem Well e e '3( z-cll Ð<,o Subject: W-21A (PTD #2(11110) Classified as Problem WeU From: "NSU, ADW Well Integrity Engineer" <NSUADWWelllntegrityEngineer@BP.com> Date: Mon, 27 Mar 2006 16:43:46 -0900 To: "Robertson. Daniel B (Alaska)" <Danie1.B.Robcrtson@BP.com>, "GPB, GC2 Area Mgr" <GPBGC2TL(l!)BP.com>, "Rossberg, R Steven" <Stcvcn.Rossberg@BP.com>, "NSU, ADW Well Operations Supervisor" <NSUADWWellOperationsSupervisor@BP.com>, "GPB, \-Vells Opt Eng" <GPBWelIsOptEng@BP.com>, "AOGCC Jim Regg (E-mail)..<jim_regg@admin.state.ak.us>. "AOGCC Winton Aubert (E-mail)..<winton_aubert@admin.state.ak.us>. "NSU, ADW WL & Completion Supervisor" <NSUADWWL&CompletionSupervisor@BP.com>, "GPB, GC2 WcIlpad Lead" <GPBGC2WellpadLead@BP.com> CC: "NSU, ADW Well Integrity Engineer" <NSUADWWellJntegrityEnginccr@BP.com>, "Hughes, Andrea (VECO)" <hugha4@BP.com>, "Winslow, Jack L." <Lyonsw@BP.com> All, Well W-21A (PTD #2011110) has been found to have sustained casing pressure on the IA. The TIO's on 03/23/06 were 2160/2180/20. Due to the activities in the GC2 Area, a TIFL has not been feasible. The plan forward for this well is as follows: 1. FB: L&K 2. SL: Set TTP @ 9925', c/o SO 3. FB: MIT-T to 3000 psi 4. SL: Pull TIP if MIT passes " A wellbore schematic has been included for reference. «W-21A.pdf» The well has been classified as a Problem well. Please call if you have any questions. Thank you, }f.nna (j)u6e Well Integrity Coordinator GPB Wells Group Phone: (907) 659-5102 Pager: (907) 659-5100 x1154 Content-Description: W -21A.pdf Content-Type: application/octet-stream Content-Encoding: base64 'ScP k-tutf ~ð U5vt-P .JA 2l~ ' 6 <b70f5/ 31. 7 i S>t (Ã 4 Cl 'Z- p>, ~ ÔA- 7A) ps ~ 'JJ ZV~ o . 'r~ ~ 1ç% M:4P I of I 3/28/2006 4:43 PM - TREE = 4-1/16" M:EVOY WELLHEAD = M:EVOY ACTUA TOR - BAKER KB. 8..EV = 82,72' BF. 8..EV = 54,46' KOP = 4900' I\fex Angle - 97 @ 12645' Datum MD = 10300' Datum 1VD = 8800' SS W-21A SAFETYNOTES: 4-112" CHROMETBG. WB.L ANGLE> 70° @ 10370' & > 90° @ 11056'. 2209' 4-1/2"HESXNlP,ID=3,813" 113-3/8" CSG, 68#, L-80, ID-12,415" I Minimum ID = 3.725" @ 9925' 4-112" HES XN NIPPLE Gl\S LIFT Mð.NDR8..S ST MD iVD DEV 1YPE VLV LATCH FORI" DATE 6 3107 3022 0 WMG DV RK 0 11/18/01 5 3636 3551 0 WMG LV RK 16 12/11/01 4 5928 5762 31 WMG OV RK 20 12/11/01 3 6929 6515 42 WMG DV RK 0 11/18/01 2 8309 7506 46 WMG DV RK 0 11/18/01 1 9812 8565 54 KBG-2 DV BK-5 0 11/18/01 ÆRFORA TON SUWMARY R8' LOG: SWS VISON RESlSì1VITY ON 11/10/01 AI'GLEATlDPPERF: 77 @ 10464' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-1/2" 4 10464-10548 0 11/16/01 2-1/2" 4 10600- 10674 0 11/16/01 2-1/2" 4 12897 - 13299 0 11/16/01 2-1/2" 4 13404- 13535 0 11/16/01 2-1/2" 4 13750- 14128 0 11/16/01 2-1/2" 4 14170- 14305 0 11/16/01 2-1/2" 4 14335- 14380 0 11/16/01 2-1/2" 4 14595- 14710 0 11/16/01 2-1/2" 4 14725-14785 0 11/16/01 -9-5/8" X 7" BKR ZXP PKR, ID = 6,270" I -19-518" X 7" BKR t-fv1C HGR, ID = 6,270" I 9-5/8" MILLOur IMNDOW 9327' - 9343' (OFF \M-IIPSTOCK) 19-518" CSG, 47#, L-80, ID = 8,681" I -14-112" t-ESX NP, D =3,813" I -17" X 4-1/2" BKR 503 A<R, ID = 3,875" -i4-1/2" HESX NP, ID =3,813" I 4-112" HES XN NP, ID = 3,725" 4-1/2"WL83, ID =4,00" 10121' 4-1/2" x 20' Mð. RKER JT 7" LNR, 26#, L-80, ,0383 bpf, ID= 6.276" 14-1/2" LNR, 12,6#, L-80, ,0152 bpf, ID= 3.958" REV BY COWMENTS ORIG COMA-EllON RlVO CONIIERI"B:>TO CANVAAS RNAL CORRECTIONS RIG SIDErRACK OA. TE 12/11101 12/28101 06125103 REV BY ?/TLP CH/W KSB/KK COWM8'J1S GLV CHAI'GES CORREC1l0NS SAFElY NOTE REVISION ffiUDHOE SA Y UNIT WELL: W-21A PERIVIIT No: 2011110 A A No: 50-029-21929-01 SEC 21, T11N, R12E. 626' SNL & 1180' WEL DATE 04/23/89 10/31/90 02/13/01 03/05/01 06/12/01 11/18/01 SIS-QAA SI50LG RNIfL H BP Exploration (Alaska) e e MICROFILMED 07/25/06 DO NOT PLACE ANY NEW MATERIAL UNDER THIS PAGE F:\LaserFiche\CvrPgs _ Inserts\Microfilm _ Marker.doc I q D tA../ DATA SUBMITTAL COMPLIANCE REPORT 11/25/2003 Permit to Drill 2011110 Well Name/No. PRUDHOE BAY UNIT W-21A Operator BP EXPLORATION (ALASKA) INC 5p.u..~ À~ ~ k)..~ ~ API No. 50-029-21929-01-00 ,M_D=~~--=n ~~. 89:6 _-c;~~~ Completion D~t~~/18~~1 ~ _CO~I~o~~a~us_~o~~, ~-=- ~~-"e~ Status- .~:~=~~'-~~~cc,,~. REQUIRED INFORMATION -_._._-"----------------------------"'-------~-------~--- ~~==tion~~~e~~ 'i~---- Mud Log No Samples No DATA INFORMATION Types Electric or Other Logs Run: Well Log Information: (data taken from Logs Portion of Master Well Data Maint) Log/ Electr Data Digital Dataset fPe Med/Frmt Number Name --o--c---------tTo571 Neutrõn -~~- ~~_óehsny -_.CC Well Cores/Samples Information: r \ Log Log Run Interval OH / Scale Media No Start Stop CH Received Comments - ------~- :::~- ;~ ~::~~;::;~--_:] Name Interval Start Stop Sent Received Sample Set Number Comments ADDITIONAL INFORMATION Y~ Chips Received? ~ Formation Tops (y)/N 0N Daily History Received? Well Cored? Analysis Received? ~ ~ - .. '_..'----~'- c~m~~~~;~ï\j~-} ~---~-~ p -~-r:-----------------------------------------------------------------------------.---------------------------- v,'~\.\"..... ~~ ~~ 'N~uJ...",\'\ -. M ~ ~~ ~ ~ If - \"¡) (,"'1 ~ NI..VI. 1--".. '- ìv D ~")i:'\I..... ~u \.\/:'i.~ M D ~:I,~~I?=-~___-= ~-~-~--=-~~)~~~-==~= ( STATE OF ALASKA (' ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1 . Operations Performed: Suspend 0 Operation Shutdown 0 Perforate 0 VarianceD Abanon 0 Annuar Disposal 0 After CasinoD Repair Well 0 Pluo PerforationsD Stimulate. Time Extension 0 OtherD Change Approved Program D Pull Tubing D Perforate New Pool D Re-enter Suspended WellD ACID TREATMENT 2. Operator 4. Current Well Class: 5. Permit to Drill Number: Name: BP Exploration (Alaska), Inc. Development. ExploratoryD 201-111 3. Address: P.O. Box 196612 6. API Number Anchorage, Ak 99519-6612 Stratigraphic D Service D 50-029-21929-01-00 7. KB Elevation (ft): 9. Well Name and Number: 82.72 W-21 A 8. Property Designation: 10. Field/Pool(s): ADL 047451 Prudhoe Bay Field I Prudhoe Bay Oil Pool 11. Present Well Condition Summary: RE(,Eli\f~:= Total Depth measured 14892 feet \. l :"I!CIItI ,rs.,(J.. ,~I1:.".~! l 7'!\:"~1" true vertical 8976 feet Plugs (measured) JUL 0 2 2003 Effective Depth measured 14805 feet Junk (measured) P.iaS!Œ Gil Q. S'~';S CIì2\Ni:' r'/~I;;F,"~i""';i-:'wa true vertical 8976 feet Ar;~r~ma~~ Casing Length Size MD TVD Burst Collapse Conductor 110' 20" 1381 138' 40K 520 Surface 2682' 13-3/8" 2710' 2708' 80K 2670 Intermediate 9299' 9-5/8" 9327' 83451 80K 4760 Liner 943' 7" 9142'-10085' 82101-8788' 80K 5410 SideTrack Liner 4959' 4-1/2" 9933'-14892' 8713'-89761 80K 7500 Perforation depth: Measured depth: DDen Perfs 10464'-10548', 10600'-10674', 12897'-13299', 13404'-13535', 13750'-14128',14170'-14305', 14335'-14380', 14595'-14710', 14725'-14785'. True vertical depth: DDen Perfs 8935'-8952',8961'-8975',8976'-8974',8977'-8982', 8978'-8964',8966'-8971',8972'-8974', 8978'-8976', 8976'-8976'. Tubing: ( size, grade, and measured depth) 4-1/2" 12.6# 13-CR-80 TBG @ 9936'. Packers & SSSV (type & measured depth) 9-5/8Ix7" BKR ZXP PKR @ 9142', 7Ix4-1/2" BKR S-3 PKR @ 9881'. 7" x 4-1/2" BKR ZXP PKR/HGR @ 9933'. 4-1/2" HES X Nipple @ 2209', 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13 Reoresentative Dailv Averaae Production or Iniection Data Oil-Bbl Gas-Met Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: 450 266 108 341 Subsequent to operation: 522 374 150 332 14. Attachments: 15. Well Class after proposed work: ExploratoryD Development. ServiceD Copies of Logs and Surveys run - 16. Well Status after proposed work: Oil. GasD WAGD GINJD WINJD WDSPLD Daily Report of Well Operations X 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. ISUndry Number or N/A if C.O. Exempt: Contact DeWayne R. Schnorr N/A Printed Name DeWqyne R. Schnorr ^ Title Techical Assistant Signature A,.?4~ ~ - d: x:Yr- JL ..... Phone 907/564-5174 Date Julv 01,2003 .... -- ORIGINAL .DMS B&-'A.. JUl 0 3 2003 Form 10-404 Revised 2/2003 05/07/2003 OS/26/2003 06/04/2003 06/23/2003 06/29/2003 05/07/03 (' (" W-21 A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS ACID: AC-EVAL; AC-TIFL ACID: AC-MONITOR ACID: DRIFT/TAG ACID: ACID TREATMENT TESTEVENT --- BOPD: 522, BWPD: 150, MCFPD: 2,344, AL RATE: 1,970 EVENT SUMMARY TIO= 300/1000/0 TIFL PASSED (PRE-ACID). SI WELL STACK OUT TBG TO 1550 PSI. INITIAL IA FL @ 59281 (318 BBLS), BLED lAP FROM 1600 PSI TO 380 PSI IN 2 HOURS. AL LATERAL VALVE BLOCKED IN, AL SPOOL BLED DOWN AND MONITORED DURING TIFL. IA FL REMAINED @ 59281. MONITORED FOR 30 MINUTES WITH NO CHANGE IN PRESSURE OR IA FL. FINAL WHp1s = 1480/380/0. B.O.L. with GL. OS/26/03 T/I/O = 290/1020/20. TEMP = HOT. SAMPLE FOR DOWELL LAB. (PREP FOR ACID STIMULATION). 06/04/03 RIG UP. DRIFT W/ 2.9" CENT TO 104841 SLM. STOPPED DUE TO DEVIATION. «< WELL LEFT SHUT IN »> 06/23/03 CTU #5, ACID TREATMENT: RIH WITH 3" JSN. ATTEMPTED TO CIRCULATE GAS OUT WHILE RUNNING IN THE HOLE. UNABLE TO GET FLUID BACK TO SURFACE. BULLHEADED CRUDE DOWN THE BACKSIDE. CAUGHT FLUID AT 71 BBLS AND ESTABLISHED INJECTION PRESSURE OF 426 PSI @ 4.5 BPM. WELL ON VAC WITH BACKSIDE FULL OF CRUDE. LAY IN 20 BBLS 12% DAD (ACID TITRATION = 11.8%, IRON < 50 PPM) ACID FROM 148001 TO 104601. LET SOAK 30 MINUTES. JET 50 BBLS 2% KCL OVER FLUSH FROM 148001 TO TOP OF PERFS @ 104601. FOLLOWED BY 400# WAX DIVERTER BEADS AND 60 BBLS 12% DAD. BULLHEADED DIVERTER AND REMAINING ACID FROM ABOVE THE PERFS AT MAX COIL PRESSURE. OVERFLUSHED WITH 100 BBLS 2% KCL. FINAL INJECTION RATE @ 2.3 BPM 162 PSI. POOH. RDMO. OPERATOR NOTIFIED TO POP WELL. NEED TO FLOW FOR 48 HOURS THEN TEST. «< JOB COMPLETE »> 06/29/03 TESTEVENT --- BOPD: 522, BWPD: 150, MCFPD: 2,344, AL RATE: 1,970 FLUIDS PUMPED BBLS 6 50/50 METHANOL WATER 110 CRUDE 388 2% KCL WATER 71 12% DAD ACID 15 HEC GEL WITH 400# WAX BEAD DIVERTER 590 TOTAL Page 1 ,. t TREE = 4-1/16" WcEVOY WELLHEAD = WcEVOY ACTlJA. TOR = BAKER KB. 8..EV = 82.72' BF. 8..EV = 54.46' KOP= 4900' Mix Angle = 97 @ 12645' Datum MD = 10300' DatumTVD = 8800' SS 13-3/8" CSG, 68#, L-80, ID = 12.415" Minimum ID = 3.725" @ 9925' 4-112" HES XN NIPPLE ÆRFORA TON SUMMARY RET LOG: SWS VISON RESISllVllY ON 11/10/01 ANGLE AT TOP PERF: 77 @ 10464' Note: Refer to Production DB for historical perf data SIZE SPF INTER\! AL Opn/Sqz DATE 2-1/2" 4 10464 - 10548 0 11/16/01 2-1/2" 4 10600 - 10674 0 11/16/01 2-1/2" 4 12897 - 13299 0 11/16/01 2-1/2" 4 13404 - 13535 0 11/16/01 2-1/2" 4 --1]750 - 14128 0 11/16/01 2-1/2" 4 14170 - 14305 0 11/16/01 2-1/2" 4 14335 - 14380 0 11/16/01 2-1/2" 4 14595- 14710 0 11/16/01 2-1/2" 4 14725 - 14785 0 11/16/01 ( W-21A SAFETY NOTES: 4-112" CHROMETBG. WB..L ANGLE> 70° @ 10370' & > 90° @ 11056'. 2209' 4-1/2" I-ES X NIP, 10 = 3.813" ST MD 6 3107 5 3636 4 5928 3 6929 2 8309 1 9812 GAS LIFT MA.I\DR8..S lVD ŒV TYPE VLV LATCH FORT 3022 0 WMG DV RK 0 3551 0 WMG LV RK 16 5762 31 WMG OV RK 20 6515 42 WMG DV RK 0 7506 46 WMG DV RK 0 8565 54 KBG-2 DV BK-5 0 DATE 11/18/01 12/11/01 12/11/01 11/18/01 11/18/01 11/18/01 -19-5/8" X 7" BKR ZXP PKR, ID = 6.270" I 9-518" X 7" BKR Hv1C HGR, ID = 6.270" 9-5/8" MILLOUT WINDOW 9327' - 9343' (OFF WHIPSTOCK) 4-1/2" WLEG, ID =4.00" 19-5/8" CSG, 47#, L-80, ID = 8.681" I 10121' 14-1/2" TBG, 12.6#, 13-CR-80, .0152 bpf, D = 3.958" I 7" X 4-1/2" BKR ZXPPKRlHGR, ID =4.34" 7" LNR, 26#, L-80, .0383 bpf, ID = 6.276" 4-1/2" X 20' MARKERJT 4-112" LNR, 12.6#, L-80, .0152 bpf, ID = 3.958" DATE REV BY COMMENTS DAlE REV BY COMMENTS 04/23/89 ORIG COMR.EllON 12/11/01 ?/TLP GLV a-iA NGES 10/31/90 ~O 12/28101 a-i/TP CORRECllONS 02/13/01 SIS-QAA CONVERfEÐ TO CANVAAS 06/25103 KSB/KK SAFETY NOlE REV ISION 03/05/01 SIS-LG ANAL 06/12/01 RNfTLH CORRECTIONS 11/18/01 RIG S IDEfRA CK FRUDHOE BA Y UNIT WELL: W-21A PERMIT No: 2011110 AA No: 50-029-21929-01 SEC 21, T11 N, R12E, 626' SNL & 1180' WEL BP Exploration (Alaska) (' STATE OF ALASKA ( ALASKA ulL AND GAS CONSERVATION COMM-I~SION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well 181 Oil 0 Gas 0 Suspended 0 Abandoned 0 Service 2. Name of Operator 7. Permit Number BP Exploration (Alaska) Inc. 201-111 301-168 3. Address 8. API Number P.O. Box 196612, Anchorage, Alaska 99519-6612 ,~ " I-"'~ 50- 029-21929-01 4. Location of well at surface ". -- - - J h~" tiocA~1 9. Unit or Lease Name 626' SNL, 1180' WEL, SEC. 21, T11 N, R12E, UM " - Prudhoe Bay Unit At top of productive interval 'iL~j8_' pL- : 1500' NSL, 1540' WEL, SEC. 15, T11 N, R12E, UM -; ,__'-~¡A_~~~_-. iiJ 10. Well Number At total depth 497' SNL, 201' EWL, SEC. 23, T11N, R12E, UM '. " . L'~- ",,,.,.,,,,,,,,'''-'''''''.''':' W-21 A 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. 11. Field and Pool Prudhoe Bay Field / Prudhoe Bay Pool KBE = 82.72' ADL 047451 12. Date Spudded 113. Date T.D. Reached 114. Date Comp., Susp., or Aband. 115. Water depth, if offshore 16. No. of Completions 1 0/26/2001 11/10/2001 11/18/2001 N/A MSL One 17. Total Depth (MD+TVD)-118. Plug Back Depth (MD+TVD).19. Directional Survey 120. Depth where SSSV se~21. Thickness of Permafrost 14892 8976 FT 14805 8976 FT 181 Yes 0 No (Nipple) 2209' MD 1900' (Approx.) 22. Type Electric or Other Logs Run DIR, GR, RES, NEU 23. CASING LINER AND CEMENTING RECORD CASING SETTING DEPTH HOLE SIZE WT. PER FT. GRADE Top BOTTOM SIZE CEMENTING RECORD AMOUNT PULLED 20" Conductor Su rface 110' 13-3/8" 68# L-80 Su rface 2710' 17-1/2" 3840 cu ft Cold Set II & III 9-5/8" 47# NT80S Surface 9327' 12-1/4" 2122 cu ft Class 'G' 7" 26# L-80 9142' 10085' 8-1/2" 243 cu ft Class 'G' 4-1/2" 12.6# L-80 9933' 14892' 6-1/8" 696 cu ft Class 'G' 24. Perforations open to Production (MD+ TVD of Top and 25. TUBING RECORD Bottom and interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) 2-1/2" Gun Diameter, 4 spf 4-1/2", 12.6#, L-80 9937' 9881' MD TVD MD TVD 10464' - 10548' 8935' - 8952' 26. ACID, FRACTURE, CEMENT SaUEEZE, ETC. 10600' - 10674' 8961' - 8975' 12897' - 13299' 8976' - 8974' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 13404' - 13535' 8977' - 8982' 2200' Freeze Protect with Diesel 13750' - 14128' 8978' - 8964' 14170' - 14305' 8966' -8971' 14335' - 14380' 8972' - 8974' 14595' - 14710' 8978' - 8976' 14725' - 14785' 8976' - 8976' 27. PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.) December 29,2001 Gas Lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAs-McF WATER-BBL CHOKE SIZE 1 GAS-OIL RATIO 1/15/2002 4 TEST PERIOD 1448 1888 198 104 1304 Flow Tubing Casing Pressure CALCULATED OIL-BBL GAs-McF WATER-BBL OIL GRAVITy-API (CORR) Press. 24-HoUR RATE 28.7 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core ChiPRECEIVED No core samples were taken. FES 0 7 2002 -- Alaska Oil & Gas Cons. Commission Anchorage .-....- .- Form 10-407 Rev. 07-01-80 lJ ~, j lj ~ ~\~ t\ t_" R 80M 5 B F L FEFfuP'rit ~~uPlicate -~ ,29. Geologic Markers 30. Formation Tests Marker Name Measured Depth True Vertical Depth Include interval tested, pressure data, all fluids recovered and gravity, GOR, and time of each phase. Sag River 10079' 8786' Shublik A 10143' 8815' Shublik 8 10258' 8865' Shublik C 10321' 8891' Eileen 10401' 8918' Sadlerochit / Zone 48 10440' 8929' REceIVED FEB 0 7 2002 Alaska Oil & Gas Cons C '. Anchora~ omrmSSlon 31. List of Attachments: Summary of Daily Drilling Reports, Leak-Off Test Summary, Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed Terrie Hubble ~ Title Technical Assistant Date ~.Ob"o W-21 A Well Number 201-111 301-168 Permit No. / A roval No. Prepared By Name/Number: Terrie Hubble, 564-4628 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 ()r)JC~~f\' 1\ l . ..,. ~'''1\., ,t --..)! f.. .t, \ I: l:~~ ; ,I- II ,,,,",,,,. ~ i \ï i \ .'- Legal Name: W-21 Common Name: W-21A Leak Off Pressure (BHP) 5,483 (psi) 4,338 (psi) 10/25/2001 10/30/2001 540 (psi) 411 (psi) FIT FIT 9,327.0 (ft) 10,085.0 (ft) 8,347.0 (ft) 8,789.0 (ft) 11.40 (ppg) 8.60 (ppg) Page 1 of 1 EMW 12.65 (ppg) 9.50 (ppg) (~~:.-. Printed: 11/19/2001 10:05:36 AM BP EXPLORATION Page 1 of 11 Operations Summary Report Legal Well Name: W-21 Common Well Name: W-21A Spud Date: 3/26/1989 Event Name: REENTER+COMPLETE Start: 6/9/2001 End: 11/18/2001 Contractor Name: NABORS Rig Release: 11/18/2001 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Activity Code NPT Phase Description of Operations 6/9/2001 19:30 - 00:00 4.50 MOB N DFAL PRE Waiting on well preparation. 6/10/2001 00:00 - 11 :00 11.00 MOB N DFAL PRE Wait on W-21A well prep. 11 :00 - 22:00 11.00 MOB P PRE Move in & rig up Nabors Rig 7 ES. RIG ACCEPTED @ 2200 HRS 11 June 2001. 22:00 - 22:30 0.50 MOB P PRE Pre spud safety meeting & PJSM. 22:30 - 23:00 0.50 MOB P PRE Install secondary annular valve & RlU high pressure hoses. 23:00 - 00:00 1.00 MOB P PRE PIU & RlU DSM lubricator to pull back pressure valve. 6/11/2001 00:00 - 01 :30 1.50 MOB P PRE Pull back pressure valve & RID DSM lubricator. 01 :30 - 03:30 2.00 RIGU P PRE RIU to X-mas tree wI high pressure hose & pressure test tubing to 1500 psi. Annular pressure increased to 1500 psi as well as tubing pressure. Hold pressure for 30 min - OK. Bleed off pressure. Note - Test pressure was charted & recorded. AOGCC, Mr. John Crisp, was alerted & waived to witness pressure test & BOP test. 03:30 - 11 :30 8.00 RIGU P PRE PJSM. RlU Halliburton slickline unit. PIU & RlU lubricator. RIH wI 2.70" gauge ring & tag top of cement @ 9850'. POH. PIU & RIH w/3 1/2" slip stop catcher & set @ 3043'. POH. RIU & RIH w/ dummy plug catcher & pull dummy from GLM @ 2979'. POH.Stand back lubricator. 11 :30 - 13:30 2.00 RIGU P PRE PJSM. RlU & circulate hole displacing freeze protect diesel. Pump rate = 3 bpm @ 120 psi. 13:30 - 17:00 3.50 RIGU P PRE RlU & RIH with slickline wI dummy. Install same in GLM @ 2979'. Recover catcher @ 3043' POH & RID Halliburton services. 17:00 - 22:30 5.50 RIGU P PRE RIU Schulmberger E line service. PIU & RIH wI CCL & tubing cutter (chemical). Run CCI from 9795' to 9600' for correlation. Cut 31/2" tubing @ 9720'. POH & RID Schlumberger. 6/12/2001 00:00 - 00:30 0.50 WHSUR P DECOMP Set TWC valve. Test below to 1,500 psi - okay. 00:30 - 01 :30 1.00 WHSUR P DECOMP ND tree and adaptor. 01 :30 - 04:30 3.00 WHSUR P DECOMP NU BOPE. 04:30 - 09:30 5.00 WHSUR P DECOMP PJSM. Test BOPs - Upper Pipe Rams, Blind Rams 250/3,500 psi - okay. Test - Chk line and valves, HCR valves, Kill Line valves 250/3,500 psi-okay. 09:30 - 11 :30 2.00 BOPSUF N RREP DECOMP Repair accumulator. 11 :30 - 12:00 0.50 BOPSUF P DECOMP Test Annular BOP, Upper/Lower Kelly cock valves, Ball valve, TIW valve - 250/3,500 psi - okay. All tested for 10 min Hi/Low. Test witnessing waived by John Crisp - AOGCC. 12:00 - 13:00 1.00 BOPSU¡:; P DECOMP RDILD test joint I plug. 13:00 - 14:00 1.00 BOPSU¡:; P DECOMP Pull TWC, wI lubricator. 14:00 - 14:30 0.50 BOPSU¡:; P DECOMP Back out Lock down studs. 14:30 - 18:00 3.50 PULL P DECOMP Attempt to pull Hanger to rig floor. Work up 200K, down 11 OK, while pumping 6-1/2 BPM, @ 880 psi. 18:00 - 19:30 1.50 PULL P DECOMP RU wireline loggers. 19:30 - 21 :00 1.50 PULL P DECOMP RIH wI Jet Cutter and cut at 9,690' WLD. 21 :00 - 21 :30 0.50 PULL P DECOMP RD wireline. 21 :30 - 00:00 2.50 PULL P DECOMP Work tbg up 200K, down 11 OK. RU wireline loggers to run Freepoint survey. (first tool did not function). 6/13/2001 00:00 - 01 :30 1.50 PULL N SFAL DECOMP Chg head on Freepoint tool. Corrected computer problem controling tool function. 01 :30 - 02:30 1.00 PULL P DECOMP PJSM. Hang loggers sheve in derrick. 02:30 - 04:00 1.50 PULL P DECOMP RIH wI Freepoint 04:00 - 05:00 1.00 PULL P DECOMP Stretch pipe, take FP surveys. Loggers indicated free pipe at ( ( Printed: 11/19/2001 10:05:44 AM --. BP EXPLORATION Page 2 of 11 Operations Summary Report Legal Well Name: W-21 Common Well Name: W-21A Spud Date: 3/26/1989 Event Name: REENTER+COMPLETE Start: 6/9/2001 End: 11/18/2001 Contractor Name: NABORS Rig Release: 11/18/2001 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Activity Code NPT Phase Description of Operations 6/13/2001 04:00 - 05:00 1.00 PULL P DECOMP 9,620'. 05:00 - 06:00 1.00 PULL P DECOMP POOH w/ FP tool. 06:00 - 07:00 1.00 PULL P DECOMP RD Free Point tool, Change to Jet Cutter. 07:00 - 08:30 1.50 PULL P DECOMP RIH wI Jet Cuter. Pull 20K over and cut at 9,590'. POOH. 08:30 - 10:00 1.50 PULL P DECOMP Attempt to pull tubing string- 200K. Pipe not free. 10:00 - 12:00 2.00 PULL P DECOMP CIO Free Point to CCL and weight bar. RIH and tag up at 9,575'. POOH. 12:00 - 15:00 3.00 PULL N WAIT DECOMP Wait on Super Jet Cutter. RU Same. 15:00 - 17:30 2.50 PULL P DECOMP RIH wI Super Jet Cutter. Pull 30K over. Make cut at 9,560' WLD. POOH. 17:30 - 20:00 2.50 PULL P DECOMP Work tbg 195K up. Unable to move. Change to FP tool. 20:00 - 23:30 3.50 PULL P DECOMP RIH wI FP tool. Pull 200K. FP tool indicated free pipe at: 9,250', 9,263' 9,348', 9,425', 9,530'. No tool response(no strain in pipe) at 9,580' (top cut at 9,560'). 23:30 - 00:00 0.50 PULL P DECOMP POOH. C/O to chemical cutter. 6/14/2001 00:00 - 01 :00 1.00 PULL P DECOMP RIH wI Chem cutter. 01 :00 - 01 :30 0.50 PULL P DECOMP Pull30K over, cut at 9,419' WLD. 01 :30 - 02:00 0.50 PULL P DECOMP POOH wI cutter. 02:00 - 04:00 2.00 PULL P DECOMP Work tbg to 200K. Re-measure stretch and weight PU. 04:00 - 07:00 3.00 PULL P DECOMP Wait on new Chem cutter. RU same. 07:00 - 09:00 2.00 PULL P DECOMP RIH wI Chem cutter. Pull20K over and cut at 8,185'. POOH. 09:00 - 09:30 0.50 PULL P DECOMP PU on tbg (100K up) and pull tbg hngr to rig floor. 09:30 - 10:30 1.00 PULL P DECOMP RD e-line loggers. 10:30 - 12:00 1.50 PULL P DECOMP RU tbg equip, and control line spooling unit. 12:00 - 12:30 0.50 PULL N DECOMP C/O spooling unit. 12:30 - 15:00 2.50 PULL P DECOMP POOH wI cmpl asmbly and 3-1/2", 9.2 ppf L-80 LDS tbg. Recover 5 SS bands, 34 control line bands. 15:00 - 15:30 0.50 PULL P DECOMP RD control line spooling unit. 15:30 - 20:00 4.50 PULL P DECOMP Cont. POOH wI tbg - total recovery = 255 jts +10.54' cut off. 20:00 - 20:30 0.50 PULL P DECOMP RD tbg equip., clean rig floor. 20:30 - 21 :30 1.00 PULL P DECOMP Install test plug. Press. test 250/3500 psi - 10 min - okay. 21 :30 - 22:00 0.50 PULL P DECOMP Install WB. 22:00 - 23:30 1.50 PULL P DECOMP PU fishing tools. 23:30 - 00:00 0.50 PULL P DECOMP MU BHA #1 - fishing tools. 6/15/2001 00:00 - 03:00 3.00 PULL P DECOMP MU Overshot/Jars - BHA. Dropped BHA 2'. Shut down for safety meetings, remedial actions and hazard eliminations. Retorque connections. 03:00 - 06:30 3.50 PULL P DECOMP RIH to 3,650'. 06:30 - 07:30 1.00 PULL P DECOMP Cut and slip 100' of drill line. 07:30 - 08:30 1.00 PULL P DECOMP Service Top Drive. 08:30 - 11 :00 2.50 PULL P DECOMP RIH to 8,128'. Tag TOF at 8,181', 175K up. Pump 5 bbl/min, 311 psi, 175K up. Engage fish, jar to 250K up. 11 :00 - 11 :30 0.50 PULL P DECOMP Pull free w/100K over. Pull with 75K drag from 8,181-8,151'. monitor well. 11 :30 - 17:00 5.50 PULL P DECOMP POOH. 17:00 - 17:30 0.50 PULL P DECOMP Stand back BHA. 17:30 - 18:00 0.50 PULL P DECOMP RU tbg handling equip. 18:00 - 20:00 2.00 PULL P DECOMP POOH, LD fish. Recover 1,223' of fish - 36 jts of 3-1/2", 9.2 ppf, L-80 tbg, 2 GLM. Top cutoff = 20.6', btm cutoff = 15.7'. Found cement on tbg collars. 20:00 - 21 :00 1.00 PULL P DECOMP LD Overshot and accell. jar. 21 :00 - 21 :30 0.50 PULL P DECOMP Clear and clean rig floor. 21 :30 - 22:30 1.00 PULL P DECOMP PUIMU BHA #2 to cleanlscrage through tight spots. ( f Printed: 11/19/2001 10:05:44 AM ( f, BP EXPLORATION Operations Summary Report Page 3 of 11 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: W-21 W-21A REENTER+COMPLETE NABORS NABORS 9ES Start: 6/9/2001 Rig Release: 11/18/2001 Rig Number: Spud Date: 3/26/1989 End: 11/18/2001 Date From - To Hours Activity Code NPT Phase Description of Operations 6/15/2001 22:30 - 00:00 1.50 PULL P DECaMP RIH to 3,080'. 6/16/2001 00:00 - 03:30 3.50 CLEAN P DECaMP Cont. RIH to 9,405' DLM, and tag top of cutoff stump. 03:30 - 05:00 1.50 CLEAN P DECaMP Circ over shakers (contaminated cmt). 05:00 - 13:00 8.00 CLEAN P DECaMP PJSM. LD 4" DP. 13:00 - 14:00 1.00 CLEAN P DECaMP LD BHA #2. 14:00 - 18:00 4.00 TA P DECOMP RU WL unit. RIH w/ EZSV and set at 9,347'. POH, RD WL unit. 18:00 - 18:30 0.50 TA P DECOMP Pressure test csg to 3,500 psi for 30 min - okay. 18:30 - 19:00 0.50 TA P DECOMP PuIlWB. 19:00 - 22:30 3.50 TA P DECOMP RU and run 70 jts (2201.29') of used 3-1/2", 9.2 ppf, L-80, TDS tbg. 22:30 - 23:00 0.50 TA P DECOMP MU and land tbg hngr. screw in LD screws. 23:00 - 23:30 0.50 TA P DECOMP Set TWC, and test to 2,500 psi f/ below. 23:30 - 00:00 0.50 TA P DECOMP ND BOPs. 6/17/2001 00:00 - 04:00 4.00 BOPSUF P DECOMP Pull RAM blocks for inspection. 04:00 - 05:30 1.50 BOPSUF P DECOMP PJSM, ND BOPs. 05:30 - 07:00 1.50 WHSUR P DECOMP NU tree. 07:00 - 07:30 0.50 WHSUR P DECaMP Press. test tree to 5,000 psi - okay. 07:30 - 08:30 1.00 WHSUR P DECOMP RU, Pull TWC valve. 08:30 - 11 :00 2.50 WHSUR P DECaMP RU Hot Oil, PJSM, pump 160 bbls diesel and freeze protect well. 11 :00 - 11 :30 0.50 WHSUR P DECaMP Install BPV, test to 2,500 psi - okay. 11 :30 - 12:00 0.50 BOPSUR P DECaMP Pull outside annular valve. 12:00 - 13:00 1.00 RIGD P DECaMP Secure cellar. 13:00 - 15:30 2.50 RIGD P DECOMP Clean Pits and Cuttings tank. RELEASE RIG: 15:30 hrs, 6/17/2001. Move off of W-21 well to the corner of "w" Pad for summer maintenance. 1 0/21 /2001 12:00 - 00:00 12.00 MOB P PRE Moving rig from L Pad to W Pad. Rig off L Pad at 1900 hrs. Rig less than 1 mile from W Pad at 2359 hrs, 10/21/01. 10/22/2001 00:00 - 03:00 3.00 MOB P DECOMP Crib beneath rear tire. Hook up Cat to snub substructure. Pull rig back on roadway. 03:00 - 09:00 6.00 RIGU P DECOMP Complete rig move to W Pad. Spot rig over well. Put herculite around cellar. Spot pits, satellite camp, and shop. 09:00 - 12:00 3.00 RIGU P DECOMP Raise derrick and pin. Rig up floor. RIG ACCEPTED at 1200 hrs, 10/22/2001. 12:00 - 16:00 4.00 RIGU P DECOMP Take 400 bbls of 8.6 ppg seawater in pits. Rig up floor. Install double valves on annulus. Bridle down. Check pressure on OA & IA: 0 psi on both. Rig up circ lines to displace diesel. Test lines to 3500 psi, OK. Put DP in pipe shed. H2S drill @ 1600 hrs. w/2 min. response. 16:00 - 17:30 1.50 PULL P DECOMP PJSM. RU DSM lubricator and pull BPV. RD DSM equipment. 17:30 - 20:30 3.00 PULL P DECOMP Pump down tbg and displace diesel with seawater. Pump 209 bbls at 2 bpm. Shut down and flow check, OK. Blow down and RD circ lines. 20:30 - 21 :00 0.50 PULL P DECOMP Install TWC and pressure test below to 1000 psi for 10 min., OK. Recod on chart. 21 :00 - 21 :30 0.50 PULL P DECOMP Conduct safety and pre-spud meeting with crews and Co. rep. Review pre-spud check list. 21 :30 - 00:00 2.50 PULL P DECOMP Check and bleed tree test ports. Drain tree below adapter flange. Nipple down tree. Take elevation measurements to rig Printed: 11/19/2001 10:05:44 AM (. (. BP EXPLORATION Operations Summary Report Page 4 of 11 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: W-21 W-21A REENTER+COMPLETE NABORS NABORS 9ES Start: 6/9/2001 Rig Release: 11/18/2001 Rig Number: Spud Date: 3/26/1989 End: 11/18/2001 Date From - To Hours Activity Code NPT Phase Description of Operations 10/22/2001 21 :30 - 00:00 2.50 PULL P DECOMP floor and wellhead. Inspect tbg hanger threads-3 1/2" 8 Rd. 10/23/2001 00:00 - 04:00 4.00 PULL P DECOMP N/U BOPE 04:00 - 05:00 1.00 PULL P DECOMP RlU DSM. Pull TWC. RID DSM 05:00 - 10:00 5.00 PULL P DECOMP BOLDS. Pull Hanger & 70 Joints 3.5" Tubing. 10:00 - 15:30 5.50 STWHIP P WEXIT RlU BOP Test equip. Test BOPE 250 psi Low - 3500 psi High. Test witnessed by Jeff Jones, AOGCC. RID Test equip. 15:30 - 16:30 1.00 STWHIP P WEXIT Install Wear Bushing. Blow down all lines. 16:30 - 19:00 2.50 STWHIP P WEXIT M/U BHA # 3: 95/8" Casing Milling Assembly, DC's, Jars & HWDP. 19:00 - 00:00 5.00 STWHIP P WEXIT PIU 4" DP singles from shed & RIH. 10/24/2001 00:00 - 02:30 2.50 CLEAN P DECOMP P/U 4" DP from shed & RIH. Tag CIBP @ 9351' DD. 02:30 - 04:30 2.00 CLEAN P DECOMP Pump Hi - Vis sweep- 13 BPM @ 2340 psi. Pump pill, blow down top drive. 04:30 - 07:00 2.50 CLEAN P DECOMP POH 15 stands, PIU additional 36 Jts from shed, POH to 6600'. 07:00 - 08:30 1.50 CLEAN P DECOMP Cut & slip drilling line. Service top drive, blocks & crown. 08:30 - 12:00 3.50 CLEAN P DECOMP POH. UD Jars. 12:00 - 12:30 0.50 CLEAN P DECOMP Pressure test 9 5/8" casing to 3500 psi for 30 minutes 12:30 - 13:00 0.50 STWHIP P WEXIT PJSM - Intoductory meeting with Dick and crew reo M/U Whipstock Assy. 13:00 - 14:30 1.50 STWHIP P WEXIT M/U Whipstock and Mill BHA 14:30 - 16:00 1.50 STWHIP P WEXIT RIH wi all BHA & function test MWD - OK 16:00 - 21 :30 5.50 STWHIP P WEXIT RIH @ 2 minutes I stand to 9258'. 21 :30 - 22:00 0.50 STWHIP P WEXIT PJSM on setting Whipstock, C/O mud and Milling window. Also reservoir meeting on Kingak wI Geologist, Co. Rep, Dir. Drlr, crews and all service hands. 22:00 - 22:30 0.50 STWHIP P WEXIT Circulate and orient Whipstock. 22:30 - 23:30 1.00 STWHIP N SFAL WEXIT Unable to read tools's signals on computer. Fixed glitch. 23:30 - 00:00 0.50 STWHIP P WEXIT Orient Whipstock to 84 degrees Right - Side. 10/25/2001 00:00 - 00:30 0.50 STWHIP P WEXIT Tag CIBP @ 9351'. Set Anchor with 15 K Pull up 5K to ensure set Slack off - Mills sheared off wi 38K. Pull up - Free. W/S set @ 84 Degrees Right side. 00:30 - 01 :30 1.00 STWHIP P WEXIT Displace well bore with 11.4 ppg Mud. 01 :30 - 16:30 15.00 STWHIP P WEXIT Mill Window in 9 5/8" Casing from 9327' to 9357' ( 16 ft. window + 14 ft open hole). Work through window without pumps - OK 16:30 - 17:30 1.00 STWHIP P WEXIT Circ. Hi-Vis Sweep 17:30 - 18:00 0.50 STWHIP P WEXIT Perform FIT. Pressure 540 psi w/11.4 ppg Mud = 12.64 EMW 18:00 - 18:30 0.50 STWHIP P WEXIT Monitor well. Pump slug. Blow dn TID. 18:30 - 23:00 4.50 STWHIP P WEXIT POH wi 4" DP & HWDP. 23:00 - 00:00 1.00 STWHIP P WEXIT UD BHA 10/26/2001 00:00 - 02:00 2.00 STWHIP P WEXIT Complete UD BHA. Top mill - full guage I 8 1/2" OK. 02:00 - 03:00 1.00 STWHIP P WEXIT Clear Floor. MIU Jetting sub on single and flush BOP stack. Function all rams. 03:00 - 06:00 3.00 DRILL P INT1 M/U BHA # 5. - 8 1/2" MX-C1 Bit. Adjust motor to 1.5 Deg.& orient. PIU Flex DC's & jars. RIH one stand HWDP - test MWD - OK RIH wI HWDP. 06:00 - 09:00 3.00 DRILL P INT1 RIH w 4" DP to 9226'. 09:00 - 10:00 1.00 DRILL P INT1 Fill Pipe & orient 70 deg. RIS. Slide through window - no problem. Bring pumps on again and wash to 9357'. Printed: 11/19/2001 10:05:44 AM BP EXPLORATION Page 5 of 11 Operations Summary Report Legal Well Name: W-21 Common Well Name: W-21A Spud Date: 3/26/1989 Event Name: REENTER+COMPLETE Start: 6/9/2001 End: 11/18/2001 Contractor Name: NABORS Rig Release: 11/18/2001 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Activity Code NPT Phase Description of Operations 10/26/2001 10:00 - 00:00 14.00 DRILL P INT1 Drill 8 1/2" directional hole from 9357' to 9640'. AST = 9 Hrs. ART = 1 Hr. WOB = 25 to 40K TO = 5 to 6K 530 GPm @ 3500 psi P/U = 185K S/O = 160K ROT = 170K 10/27/2001 00:00 - 08:00 8.00 DRILL P INT1 Drill from 9640' to 9887'.530 GPM @ 3575 psi, TO 5K. Pop off on #2 pump went off at 3900 psi while sliding. 08:00 - 08:30 0.50 DRILL N RREP INT1 Change out pop off on #2 pump. 08:30 - 09:00 0.50 DRILL P INT1 Service Top Drive. 09:00 - 18:00 9.00 DRILL P INT1 Drill from 9887' to 10086'. 530 GPM @ 3750 psi. TQ 4.5K P/U 185K, SIO 156K, ROT 171 K. AST 3.7 Hrs ART 9.55 Hrs. ROP dropped significantly @ 10080'. Transition to SAG? 18:00 - 19:30 1.50 DRILL P INT1 Circulate up samples for Geologist. Pyrite and sand indicate transition to top of SAG. Called TD. 19:30 - 21 :00 1.50 DRILL P INT1 10 Stand wiper trip to window. Hole looks good - pulled max 20K over through 15 deg DLS @ 9530'. no problems - no fill. 21 :00 - 23:00 2.00 DRILL P INT1 Bring pumps up slowly. Circulate Hi-Vis sweep @ 530 GPM. Hole clean. Spot Liner running pill. Pump slug. 23:00 - 00:00 1.00 DRILL P INT1 Drop 2.375 Drift. Start POH. 10/28/2001 00:00 - 00:30 0.50 DRILL N RREP INT1 Replace boot in drilling nipple. 00:30 - 03:30 3.00 DRILL P INT1 POH to run 7" drilling liner. Incl1 hr extra for daylight savings. 03:30 - 03:45 0.25 DRILL P INT1 PJSM for handling BHA. 03:45 - 05:30 1.75 DRILL P INT1 LD BHA. 05:30 - 06:00 0.50 CASE P LNR1 Clear floor. RU to run 7" liner. 06:00 - 06: 15 0.25 CASE P LNR1 PJSM for running liner. 06:15 - 06:30 0.25 CASE P LNR1 MU shoe track & verify floats holding - OK. 06:30 - 09:00 2.50 CASE P LNR1 Run 23 jts total of 7" 26# L-80 BTC Mod liner. 09:00 - 09:30 0.50 CASE P LNR1 MU liner hanger and liner top packer. 09:30 - 10:00 0.50 CASE P LNR1 Circ liner vol. 10:00 - 18:00 8.00 CASE P LNR1 RIH with liner on 4" HW and DP to 10,086'. 18:00 - 20:00 2.00 CASE P INT1 Stage pumps up to 6 bpm @ 1240 psi. Circ btms. up. Reciprocate PJSM with Crew, Dowell, Baker & Peak while circ. 20:00 - 21 :30 1.50 CASE P INT1 Set liner shoe 1 ft. off bottom. Shut down pumps - switch to Dowell. Pump 10 bbls 8.32 ppg. CW100. Test line to 4000 psi. Pump 10 bbls CW100 folowed by 40 bbls. 12.5 ppg MudPush XL. Pump 43 bbls 15.8 ppg G Cement. Shut down Dowell & flush lines. Switch back to rig pumps. Drop DP wiper plug and displace wi 123 bbls of 11.4 ppg mud. Bumped plug with 3500 psi. 21 :30 - 22:00 0.50 CASE P INT1 Leave 3500 psi on plug to set Liner Hanger. Set down 50K to check - OK. Bleed pressure, floats OK. Release running tool wi 18 turns. Pres. up DP to 500 psi. PIU to clear seals & pump 30 bbls to clear cmt from top of liner. Shut down pumps & set down rotating. Packer sheared & set with 45K. 22:00 - 23:00 1.00 CASE P INT1 Sting out of Pkr. and circulate bottoms up. No discernible Cement in returns, but did get a distinctive cement odor. 23:00 - 00:00 1.00 CASE P INT1 POH 10/29/2001 00:00 - 04:00 4.00 CASE P INT1 POH. UD Liner running tool. 04:00 - 07:30 3.50 BOPSUF P PROD1 Test BOPE - 250psi Low I 3500 psi High -All componants. API Witness waived by Chuck Sheve, AOGCC. 07:30 - 08:00 0.50 DRILL P PROD1 Run wearbushing, clear floor & RIU to PIU BHA. 08:00 - 10:00 2.00 DRILL P PROD1 PIU & M/U BHA #6. 10:00 - 10:30 0.50 DRILL P PROD1 RIH PIU 4" DP from shed. (' ( ~ Printed: 11/19/2001 10:05:44 AM ( ( BP EXPLORATION Page 6 of 11 Operations Summary Report Legal Well Name: W-21 Common Well Name: W-21A Spud Date: 3/26/1989 Event Name: REENTER+COMPLETE Start: 6/9/2001 End: 11/18/2001 Contractor Name: NABORS Rig Release: 11/18/2001 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Activity Code NPT Phase Description of Operations 10/29/2001 10:30 - 11 :00 0.50 DRILL P PROD1 Check shot - MWD I LWD. OK. 11 :00 - 15:00 4.00 DRILL P PROD1 Cont. RIH P/U DP from shed ( 150 Jts. P/U ) 15:00 - 16:30 1.50 DRILL P PROD1 PJSM. Cut & slip drlg line 84'. Service top drive, draworks, brakes. 16:30 - 20:00 3.50 DRILL P PROD1 RIH to 9919'. Slid into liner top - no problem. Break circulation. 20:00 - 20:30 0.50 DRILL P PROD1 Presure test 7' Liner and Lap to 3500 psi I 30 minutes - OK 20:30 - 00:00 3.50 DRILL P PROD1 Drill Cement, plugs, then hard cement to 10080'. Drilled w/1 to 5K WOB. 250 GPM @ 1220 psi. RPM = 25. PIU = 188K 5/0 = 145K ROT = 170K TQ = 4K to 6.5K 10/30/2001 00:00 - 02:00 2.00 DRILL P PROD1 Displace with quickdrill n mud. 02:00 - 05:00 3.00 DRILL P PROD1 Drill out shoe track / float equip, and new formation to 10106 ft. 05:00 - 06:30 1.50 DRILL P PROD1 Circ for FIT. Well clean, no gain /Iosses. 06:30 - 07:00 0.50 DRILL P PROD1 Pull into csg, perform FIT at 9.5 EMW, 411 psi, 10085 md, 8789 tvd, hole 10106 ft. 07:00 - 00:00 17.00 DRILL P PROD1 Flow check, commence drill ahead 6 1/8 hole 10106 - 10419 ft. WOB 7 - 8, RPM 60, GPM 279, Press 1600, SPM 110 Up 205, Dn 160, Rot 180 ART 5.5 hrs, AST 9 Hrs 10/31/2001 00:00 - 00:00 24.00 DRILL P PROD1 Drill drctnl 6 1/8 hole 10419 - 11043 ft. Slight losses at 10850 ft. Add Barofibre 15 sks I hr. Reduce losses to 6 - 8 bbls / hr dynamic. 3 - 4 bbl / hr static. Total loss = 112 bbl. WOB 7.5, Rot 55, Gpm 270, Press 1800, Tq 7500 Up 210, Dn 156, Rot 181 ART 3 hrs, AST 10.25 hrs 11/1/2001 00:00 - 03:00 3.00 DRILL P PROD1 Drill drctnl 6 1/8 hole 11043 - 11137 ft. 03:00 - 04:30 1.50 DRILL P PROD1 Circ, pump hi - vis sweep, shaker clean, cuttings normal. 04:30 - 05:30 1.00 DRILL P PROD1 Prepare and commence wiper trip to 7" shoe. Normal drag, no swabbing. Losses 3-4 bph. Zero losses at shoe, static. 05:30 - 06:00 0.50 DRILL P PROD1 Service top drive. 06:00 - 07:00 1.00 DRILL P PROD1 Flow check, rih. No fill, down drag. 07:00 - 00:00 17.00 DRILL P PROD1 Resume drill ahead 61/8 hole drctnl11261 -11791 ft. WOB 9, ROT 75, GPM 270, Press 1775, Tq 8700 AST = 4.5 hrs, ART = 5 hrs Up 210, Dn 151, Rot 179 Total losses = 132 bbls 11/2/2001 00:00 - 04:00 4.00 DRILL P PROD1 Drill ahead drctnl 6 1/8 hole 11791 - 11941 ft. ART = 3.5 hrs WOB 7, ROT 75, GPM 270, Press 1775, Tq 8000 Up 210, Dn 152, Rot 178 04:00 - 05:30 1.50 DRILL N DFAL PROD1 MWD erratic, pressure loss. Troubleshoot I inspect surface equip. No leaks. 05:30 - 07:30 2.00 DRILL P PROD1 Circ for samples as per geologist. 07:30 - 12:30 5.00 DRILL N DFAL PROD1 Prepare and poh for mwd signal failure. Drag normal. Losses 3-4 bph dynamic. 12:30 - 14:30 2.00 DRILL N DFAL PROD1 Flow check. Handle bha #6, layout drctnl tools. 14:30 - 16:30 2.00 DRILL N DFAL PROD1 Make up bha #7, new motor I mwd. 16:30 - 17:00 0.50 DRILL N DFAL PROD1 Flow check, rih 690 ft, shallow test mwd. 17:00 - 17:30 0.50 DRILL P PROD1 Service top drive. 17:30 - 23:30 6.00 DRILL N DFAL PROD1 Follow bha with 4" dp to 11146 ft. Fill pipe at 5900 ft. Work tight Printed: 11/19/2001 10:05:44 AM ( (' BP EXPLORATION Page 7 of 11 Operations Summary Report Legal Well Name: W-21 Common Well Name: W-21A Spud Date: 3/26/1989 Event Name: REENTER+COMPLETE Start: 6/9/2001 End: 11/18/2001 Contractor Name: NABORS Rig Release: 11/18/2001 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Activity Code NPT Phase Description of Operations 11/2/2001 17:30 - 23:30 6.00 DRILL N DFAL PROD1 intervals 10880, 10949, 11042, 11146ft. 23:30 - 00:00 0.50 DRILL P PROD1 Wash / re-Iog madd pass 11890 - 11925 ft. 11/3/2001 00:00 - 00:30 0.50 DRILL P PROD1 Cont wash I ream to btm at 11941 ft. No fill, exc condiiton. Losses during trip = 12 bbls. 00:30 - 00:00 23.50 DRILL P PROD1 Resume drill ahead 6118 hole drctnl, 11941 - 12120 ft. ROP remains slow, as before wiper trip. 10 - 20 ft / hr. Cont parameter change, lube hole. AST = 7.7 hrs, ART = 10.3 hrs WOB 9, Rot 55, Gpm 270, Press 1700, Tq 8.5 Up 200, Dn 153, Rot 178 Total losses = 87 bbls 11/4/2001 00:00 - 15:30 15.50 DRILL P PROD1 Cont drill ahead 61/8 hole drctn', 12120 - 12261 ft. ROP remains slow, can not increase. WOB 12, Rot 55, Gpm 270, Press 1760, Tq 7.7 Up 200, Dn 154, Rot 177 ART = 9 hrs, AST = 2.75 hrs Total losses = 104 bbls 15:30 - 16:00 0.50 DRILL P PROD1 Circ I cond mud for trip. 16:00 - 22:00 6.00 DRILL P PROD1 Flow check, poh for bit. Good condition, no swab, drag. Losses = 3 bph while pulling. 22:00 - 00:00 2.00 DRILL P PROD1 Flow check, handle bha #7, layout motor assy. 11/5/2001 00:00 - 01 :00 1.00 DRILL P PROD1 Cont handle bha #7, lay motor I mwd assy. Inspect bit. ( Good cond ) 01 :00 - 04:00 3.00 DRILL P PROD1 Test bope as per BP I AOGCC specs as follows: Witness waived by Mr John Crisp Annular 250 I 3000 - 15 min. Rams, all flanged conn's 250/ 3500 - 15 min Kill / choke, all related components 250 I 3500 - 15 min Standpipe to pumps, floor valves, all safety equip 250 I 3500 - 15 min Acumulator time / press test. All tests successful, no re-tests performed. 04:00 - 06:00 2.00 DRILL P PROD1 Make up bha #8, motor / mwd assy, orient, rih same. 06:00 - 06:30 0.50 DRILL P PROD1 Shallow test motor / mwd. 06:30 - 11 :30 5.00 DRILL P PROD1 Flow check, follow bha with 4" dp to 7" csg shoe. 11 :30 - 13:00 1.50 DRILL P PROD1 Cut / slip drlg line, inspect dwks - brakes, service top drive, blocks, crown. 13:00 - 15:00 2.00 DRILL N RREP PROD1 Replace brake pads driller side. 15:00 - 16:30 1.50 DRILL P PROD1 Flow check, resume rih 4" dp to 12234 ft. 10 115 down drag 1 0890 - 11617 ft. 16:30 - 17:30 1.00 DRILL P PROD1 Precautionary wash I rotate 100 ft to btm. No fill. 17:30 - 18:00 0.50 DRILL P PROD1 Circ / cond mud. 18:00 - 00:00 6.00 DRILL P PROD1 Commence drill ahead 6 1/8 hole drctn', 12261 - 12334 ft WOB 15, Rot 70, GPM 270, Press 1950, Tq 7600 Up 200, Dn 154, Rot 176 AST = 1.25 hrs, Art = 3.75 hrs Trip losses = 25 bbls, Total losses 40 bbls 11/6/2001 00:00 - 04:30 4.50 DRILL P PROD1 Cont drill ahead 61/8 hole drctnl, 12334 - 12446 ft. 04:30 - 05:30 1.00 DRILL P PROD1 Flow check. Circ samples around as per geologist. Printed: 11/19/2001 10:05:44 AM ( ( BP EXPLORATION Page 8 of 11 Operations Summary Report Legal Well Name: W-21 Common Well Name: W-21A Spud Date: 3/26/1989 Event Name: REENTER+COMPLETE Start: 6/9/2001 End: 11/18/2001 Contractor Name: NABORS Rig Release: 11/18/2001 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Activity Code NPT Phase Description of Operations 11/6/2001 05:30 - 00:00 18.50 DRILL P PROD1 Resume drill 12446 - 12990 ft. WOB 15, ROT 70, GPM 270, Press 2130, TQ 8000 Up 200, Dn 155, Rot 177 AST = 4.5 hrs, ART 11.5 hrs Total losses = 221 bbls 11/7/2001 00:00 - 19:00 19.00 DRILL P PROD1 Cont drill ahead 6 1/8 hole drctnl, 12990 13632 ft. Difficult drctnl control. WOB 12, ROT 70, GPM 270, Press 1900, Tq 8000 Up 201, Dn 155, Rot 177 AST = 3.75 hrs, ART = 8.65 hrs Total losses = 296 bbls 19:00 - 21 :30 2.50 DRILL P PROD1 Circ hi-vis sweep. No increase cuttings at shaker. 21 :30 - 00:00 2.50 DRILL P PROD1 Flow check, orient high side, poh for bit. Normal up I dn drag. No swabbing. Flow check at shoe and bha. 11/8/2001 00:00 - 04:00 4.00 DRILL P PROD1 Cont poh, flow check at 7" shoe, pump wt pill, resume poh to bha. No difficulties. Normal drag, no swabbing. 04:00 - 06:00 2.00 DRILL P PROD1 Flow check, PJSM, unload RA source. Layout motor I mwd assy. 06:00 - 06:30 0.50 DRILL P PROD1 Service top drive. 06:30 - 08:30 2.00 DRILL P PROD1 MU bha #9, motor I mwd assy, orient same. 08:30 - 11 :00 2.50 DRILL N WAIT PROD1 Damaged tool installing source. Wait on tools to dress same. 11 :00 - 12:00 1.00 DRILL P PROD1 PJSM, load RA source. 12:00 - 18:00 6.00 DRILL P PROD1 Flow check, follow bha with 4" dp to 13532 ft, filling pipe at 5400 and 10086 ft. No problem rih, normal dn drag. No obstructions. 18:00 - 19:00 1.00 DRILL P PROD1 Precaution wash / ream 100 ft to btm. No fill. Circ / cond I orient motor. 19:00 - 00:00 5.00 DRILL P PROD1 Commence drill ahead 6 1/8 hole drctnl, 13632 - 13700 ft. WOB 12, ROT 70, GPM 245, Press 1720, Tq 8000 Up 203, Dn 147, Rot 175 AST = 1 hr, ART = 2 hrs Total losses = 149 bbls Trip loss = 14 bbls 11/9/2001 00:00 - 00:00 24.00 DRILL P PROD1 Cont drlg 61/8 drctnl hole, 13700 - 14410 ft. Pump hi-vis sweeps various intervals. No abnormal hole conditions. WOB 20, ROT 70, GPM 270, Press 2144, Tq 9000 Up 203, Dn 144, Rot 175 AST = 6 hrs, ART = 10 hrs 11/10/2001 00:00 - 21 :00 21.00 DRILL P PROD1 Cont drlg 6 1/8 hole drctnl1441 0 - 14892 ft. Geologist confirms TD this depth ( 14892 ) WOB 20, RPM 70, GPM 270, Press 2144, Tq 10,000 Up 200, Dn 153, Rot 178 AST = 7 hrs, ART = 5 hrs Total losses = 191 bbls 21 :00 - 00:00 3.00 DRILL P PROD1 Flow check, circ / cond drlg fluid for wiper trip. Hi-vis pill returns no increased cuttings. 11/11/2001 00:00 - 03:00 3.00 DRILL P PROD1 Cont rih wiper trip to 7" shoe at 10085 ft. 03:00 - 04:30 1.50 DRILL P PROD1 Cut drlg line, service top drive, crown, blocks. 04:30 - 07:00 2.50 DRILL P PROD1 Flow check, resume rih 4" dp to btm. No fill, restrictions. Losses 35 bbls on trip. I Printed: 11/19/2001 10:05:44AM ( ~1 BP EXPLORATION Page 9 of 11 Operations Summary Report Legal Well Name: W-21 Common Well Name: W-21A Spud Date: 3/26/1989 Event Name: REENTER+COMPLETE Start: 6/9/2001 End: 11/18/2001 Contractor Name: NABORS Rig Release: 11/18/2001 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Activity Code NPT Phase Description of Operations 11/11/2001 07:00 - 10:30 3.50 DRILL P PROD1 Circ sweep, spot liner pill. Clean returns at shaker. 10:30 -14:00 3.50 DRILL P PROD1 Flow check, prepare and poh to top of 7" liner. Open hole exc cond, no drag. 14:00 - 16:30 2.50 DRILL P PROD1 Drop ball, open circ sub, circ sweep, pump wt pill. Receive considerable solids I contaminated returns from liner top. Cont circ, clean up. 16:30 - 21:00 4.50 DRILL P PROD1 Flow check, slight losses, drop rabbit, resume poh for 4 1/2 liner. 21 :00 - 23:00 2.00 DRILL P PROD1 Handle bha #9, layout drctnl equip. Break and grade bit. 23:00 - 00:00 1.00 CASE P PROD1 Clear rig floor, rig up to run 4 1/2" liner. Total losses = 91 bbls 11/12/2001 00:00 - 00:30 0.50 CASE P PROD1 Cont ru, prepare run 4 1/2 prod liner. 00:30 - 07:30 7.00 CASE P PROD1 Make up shoe track ( Guide shoe, jt csg, float, jt csg, Idg collar ), rih same. Fill and test floats. Rih 118 jts, make up hgr I pkr assy. Rih one std dp. 07:30 - 08:30 1.00 CASE P PROD1 Circ liner volume, clear pipe. 08:30 - 11 :00 2.50 CASE P PROD1 Flow check, commence rih 4" dp, filling at 10 std intervals. 11 :00 - 12:30 1.50 CASE P PROD1 Circ, at 7" shoe. Pump liner volume. Make up cmt hd on jt dp. 12:30 - 16:30 4.00 CASE P PROD1 Resume rih 4" dp, tight at 14592 - 14802 ft. 16:30 - 21:00 4.50 CASE P PROD1 Circ, work pipe to btm at 14892 ft. Cont phase up pump rate, gain controllosses.Circ, work pipe to btm at 14892 ft. Initial 15 bph loss, Final 2 1/2 bph loss. Total trip loss = 75 bbls. 21 :00 - 22:30 1.50 CASE P PROD1 Commence cmt 4 1/2 liner as follows: Pump 5 bbls CW100, Test lines to 4500 psi, pump addtnl 35 bblks CW 100. Pump 40 bbls Mud Push XL-10.2 ppg, pump pre-batch mixed cmt slurry. Tot 124 bbls 15.8 ppg "G". Wash lines. Release wiper plug, displace with 75 bbls perf pill, followed by 100 bbls 8.7 ppg drlg fluid. Note visible latch up. Bump plug with 3500 to set hgr. Bleed and check floats. Plug bumped at 2230 hrs. Final circ press before bump = 1427 psi @ 60 spm ( Rig Pumps ). Reciprocated casing while cementing. 22:30 - 23:00 0.50 CASE P PROD1 Set dn 50,000 Ibs top of pkr. Hgr confirmed set. Pu, clear pkr dogs. Rot dn and set pkr. Back out run tool, prepare circ top of hgr I pkr. 23:00 - 00:00 1.00 CASE P PROD1 Begin circ excess cmt out well. note approx 5 bbls 9.5 ppg contaminated cmt at surface. Cont circ clean returns. Total losses cmt job = 27 bbls. 11/13/2001 00:00 - 01 :00 1.00 CASE P COMP Complete circulating casing clean. 01 :00 - 03:00 2.00 CASE P COMP Displace well with clean seawater, pumping 8 BPM @ 1400 psi. 03:00 - 04:00 1.00 CASE P COMP RID cement head - clean out possum belly and under shakers. 04:00 - 10:30 6.50 CASE P COMP POH wI DP. Standback 55. LID 135 Jts. DP, HWDP & Running tool. 10:30 - 14:00 3.50 CASE P COMP Test BOPE to 250 I 3500 psi. API. Witness of test waived by Jeff Jones, AOGCC. 14:00 - 14:30 0.50 CASE P COMP RID test equip.. Install wear bushing. Printed: 11/19/2001 10:05:44AM (' ( BP EXPLORATION Page 1 0 of 11 Operations Summary Report Legal Well Name: W-21 Common Well Name: W-21A Spud Date: 3/26/1989 Event Name: REENTER+COMPLETE Start: 6/9/2001 End: 11/18/2001 Contractor Name: NABORS Rig Release: 11/18/2001 Rig Name: NABORS 9ES Rig Number: Date From - To Hours Activity Code NPT Phase Description of Operations 11/13/2001 14:30 - 15:00 0.50 CASE P COMP Test Liner & Lap to 3500 psi for 30 minutes. OK. 15:00 - 19:00 4.00 PERF P COMP PJSM w/ HOWCO & Crew. M/U & RIH w/2 1/2" 4SPF Millenium Guns as per program. 19:00 - 00:00 5.00 PERF P COMP RIH w/19 Jts 2 7/8" PAC followed by 4 " DP. 11/14/2001 00:00 - 03:30 3.50 PERF P COMP Continue RIH wI Perf. guns. Tag landing collar @ 14,803'. 03:30 - 04:00 0.50 PERF P COMP Space out guns. RlU and pres test lines to 3500 psi. 04:00 - 08:00 4.00 PERF N DFAL COMP Attempt to Fire guns. Pressured up to 2100 psi. ,2500 psi., then 3500 psi - No Indication of detonation. Circulated through ported sub and reversed. Made numerous attempts re- pressuring to 3500 psi - No Success. 08:00 - 20:00 12.00 PERF N DFAL COMP POH. Found shaved O-Rings in top firing head - wet. Guns 1 through 9 - wet, UD same plus gun # 10. Bottom firing head - wet. 20:00 - 00:00 4.00 PERF N DFAL COMP HOWCO to shop to prepare new guns and test new Mark II firing head. Rig - service draworks, cut and slip drilling line and general maintenance while waiting on HOWCO. Co Rep, ODE and driller mabde rig safety/enviromental rig inspection. 11/15/2001 00:00 - 02:00 2.00 PERF N DFAL COMP Wait on HOWCO. Service rig. 02:00 - 02:30 0.50 PERF N DFAL COMP Load new guns in shed. PIU packer Assy. to rig floor. 02:30 - 14:00 11.50 PERF N DFAL COMP P/U guns, firing head, PAC pipe & Pkr assy. RIH Tag landing collar @ 14803'. Space out & set Pkr. 14:00 - 14:30 0.50 PERF P COMP Close Annular Pressure up to 1370 psi. Good indication of detonation. Monitor well - OK 14:30 - 15:30 1.00 PERF P COMP Reverse circulate 2 DP volumes @ 3.5 BPM & 260 psi. Losses while Circulating - 34 bbls. - minimal. 15:30 - 23:30 8.00 PERF P COMP POH. Stand back 83 Stands DP - Lay down remainder. UD Jars, Pkr & 2 7/8" PAC. 23:30 - 00:00 0.50 PERF P COMP PJSM with HOWCO and all rig personnel on laying down perf guns. 11/16/2001 00:00 - 08:00 8.00 PERF P COMP Complete UD Perf guns. All Fired. 08:00 - 10:00 2.00 PERF P COMP Clean and clear floor of gun detritus. 10:00 - 11 :00 1.00 RUNCO~ rP COMP Pull wear bushing. Make dummy run wI landing joint & hanger. 11 :00 - 12:30 1.50 RUNCO~ rP COMP Change out bails. Rig up to run chrome tubing. 12:30 - 13:00 0.50 RUNCO~ rP COMP PJSM with all personnel. 13:00 - 00:00 11.00 RUNCO~ rP COMP P/U & RIH with comletion string as per program. 11/17/2001 00:00 - 06:00 6.00 RUNCor fP COMP Complete running 4.5" , 12.6#,13CR80, Fox tubing completion string as per program. Total 307 Jts ran. Up Wt. - 143K Dn Wt - 121 K. Space out w/ WLEG @ 9937' 06:00 - 07:30 1.50 RUNCor fP COMP M/U Hanger, Landing Jt. and circulating lines. Land hanger to verify space out and P/U above rotary. 07:30 - 11 :30 4.00 RUNCor fP COMP Reverse circulate bottoms up then displace well with corrosion inhibited seawater. 11 :30 - 12:00 0.50 RUNCor fP COMP Land Hanger. R.I.L.D.S. 12:00 - 13:00 1.00 RUNCor fP COMP RID circ. lines. Drop Ball/Rod. UD landing Jt. 13:00 - 15:00 2.00 RUNCor fP COMP Close blind rams. Pressure up on tubing to 3500 psi to set Packer. Hold for 30 minute test. Bleed tubing to 1500 psi. Pressure annulus to 3500 psi for 30 minute Packer test. Bleed tubing pressure to shear RP valve. 15:00 - 16:00 1.00 WHSUR P COMP Install TWC. Test from below to 1000 psi 16:00 - 18:00 2.00 WHSUR P COMP N/D BOPE 18:00 - 20:30 2.50 WHSUR P COMP N/U Adapter Flange & Tree Printed: 11/19/2001 10:05:44AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Date 11/17/2001 11/18/2001 ( ( BP EXPLORATION Operations Summary Report W-21 W-21A REENTER+COMPLETE NABORS NABORS 9ES From - To Hours Activity Code NPT Phase 20:30 - 21 :00 21 :00 - 22:00 22:00 - 00:00 00:00 - 00:30 00:30 - 01 :30 01 :30 - 03:00 0.50 WHSUR P 1.00 WHSUR P 2.00 WHSUR P 0.50 WHSUR 1.00 WHSUR 1.50 WHSUR COMP COMP COMP COMP COMP COMP Page 11 of 11 Start: 6/9/2001 Rig Release: 11/18/2001 Rig Number: Spud Date: 3/26/1989 End: 11/18/2001 Description of Operations Test Adapter Flange & Tree to 5000 psi. RlU DSM Lubricator. Pull TWC. RID DSM. Freeze protect tubing and annulus to 2200 ft. wI diesel Complete pumping diesel & allow to U - tube. Run BPV and test to 1500 psi. RID secondary annulus valve, Blow down all line. Secure Tree. RIG RELEASED @ 03:00 Hrs. Printed: 11/19/2001 10:05:44 AM ANADRILL SCHLUMBERGER Survey report Client... ."'" ..........: BP Exploration (Alaska) Inc. Field............. .... ...: Prudhoe Bay Well. . . . . . . . . . . . . . . . . . . . .: W- 21A API number....... ........: 50-029-21929-01 Engineer......... ...... ..: Nutter COUNTY: . . . . . . . . . . . . . . . . . .: Nabors 9ES STATE: . . . . . . . . . . . . . . . . . . .: Alaska ----- Survey calculation methods------------- Method for positions.....: Minimum curvature Method for DLS... .,.. ....: Mason & Taylor ----- Depth reference ---------------- Permanent datum..........: Mean Sea Level Depth reference..........: Driller's Pipe GL above permanent.......: 53.06 ft KB above permanent.......: N/A DF above permanent.......: Tally 82.72 ft ----- Vertical section origin---------------- Latitude (+N/S-). ...,.. ..: 0.00 ft Departure (+E/W-}.... ....: 0.00 ft ----- Platform reference point-------- Latitude (+N/S-).... .....: -999.25 ft Departure (+E/W-). ..,. ...: -999.25 ft Azimuth from rotary table to target: 111.09 degrees [(c)2001 Anadrill IDEAL ID6_1C_10] 11-Nov-2001 15:06:40 1 of 7 Page Spud date. . . . . . . . . . . . . . . . : Last survey date.........: Total accepted surveys...: MD of first survey.......: MD of last survey........: 25-0CT-01 11-Nov-01 179 9298.10 ft 14892.00 ft -. ----- Geomagnetic data ---------------------- Magnetic model........ ...: BGGM version 2000 Magnetic date............: 24-0ct-2001 Magnetic field strength..: 1149.21 HCNT Magnetic dec (+E/W-).....: 26.30 degrees Magnetic dip.............: 80.74 degrees ----- MWD survey Reference Criteria --------- Reference G..............: 1002.68 mGal Reference H..............: 1149.21 HCNT Reference Dip........ ....: 80.74 degrees Tolerance of G...........: (+/-) 2.50 mGal Tolerance of H...........: (+1-) 6.00 HCNT Tolerance of Dip.........: (+/-) 0.45 degrees -~ ----- Corrections --------------------------- Magnetic dec (+E/W-).....: 26.30 degrees Grid convergence (+E/W-).: 0.00 degrees Total az carr (+E/W-)....: 26.30 degrees (Total az corr = magnetic dec - grid conv) Sag applied (Y/N).... ....: No degree: 0.00 ANAD~ILL SCHLUMBERGER Survey Report -------- -------- Seq Measured # depth (ft) -------- -------- 1 2 3 4 5 9298.10 9327.00 9343.00 9375.75 9407.93 ------ ------ Incl angle (deg) ------ ------ 43.88 44.04 44.25 44.81 46.26 47.58 49.52 51.40 52.56 52.81 52.95 53.81 54.72 54.71 54.61 54.40 54.43 54.23 54.69 57.23 58.97 59.51 60.43 60.40 61.00 63.69 64.20 63.97 64.00 64.03 ------- ------- ------ ------ Azimuth Course angle length ( deg ) ( f t ) ------- ------- 47.23 46.42 49.16 54.21 58.98 63.32 67.83 71.63 76.05 79.62 80.64 84.92 86.33 86.90 87.37 86.73 88.13 88.18 90.45 90.36 90.78 90.29 89.78 90.10 90.14 90.15 91.02 91.57 92.14 91.95 ------ ------ 0.00 28.90 16.00 32.75 32.18 30.55 33.25 30.81 29.22 33.04 29.09 31.76 30.63 32.46 31.13 30.50 30.96 33.10 28.96 31.48 28.78 32.92 31.13 29.95 89.03 29.85 30.27 32.73 31.51 30.74 [(c)2001 Anadrill IDEAL ID6_1C_I0] 6 7 8 9 10 9438.48 9471.73 9502.54 9531.76 9564.80 11 12 13 14 15 9593.89 9625.65 9656.28 9688.74 9719.87 16 17 18 19 20 9750.37 9781.33 9814.43 9843.39 9874.87 21 22 23 24 25 9903.65 9936.57 9967.70 9997.65 10086.68 26 27 28 29 30 10116.53 10146.80 10179.53 10211.04 10241.78 -------- -------- TVD depth (ft) -------- -------- 8323.58 8344.38 8355.87 8379.22 8401.77 8422.64 8444.66 8464.27 8482.28 8502.31 8519.86 8538.82 8556.71 8575.46 8593.46 8611.17 8629.19 8648.49 8665.32 8682.94 8698.15 8714.99 8730.57 8745.35 8788.92 8802.78 8816.07 8830.38 8844.20 8857.67 11-Nov-2001 15:06:40 -------- -------- Vertical section (ft) -------- -------- 928.94 937.65 942.66 954.34 967.68 982.04 999.51 1017.34 1035.66 1057.63 1077.52 1099.96 1122.40 1146.52 1169.73 1192.40 1215.46 1240.23 1262.11 1286.51 1309.40 1335.88 1361.03 1385.32 1457.82 1482.51 1507.98 1535.68 1562.42 1588.54 ================ Displ +N/S- (ft) Displ +E/W- (ft) ================ 2055.32 2069.05 2076.53 2090.76 2103.38 2114.14 2124.42 2132.64 2139.04 2144.57 2148.55 2151.75 2153.64 2155.21 2156.48 2157.75 2158.88 2159.75 2160.03 2159.84 2159.60 2159.34 2159.32 2159.35 2159.19 2159.12 2158.84 2158.18 2157.26 2156.27 1788.30 1802.93 1811.18 1829.19 1848.36 1867.90 1890.59 1912.87 1934.97 1960.65 1983.50 2008.78 2033.57 2060.02 2085.38 2110.18 2135.33 2162.21 2185.77 2211.85 2236.29 2264.57 2291.52 2317.57 2395.21 2421.65 2448.84 2478.27 2506.57 2534.19 =============== Page Total displ (ft) At Azim (deg) =============== 2724.40 2744.36 2755.42 2777.99 2800.12 2821.10 2843.85 2864.83 2884.37 2905.74 2924.13 2943.68 2962.02 2981.38 2999.87 3018.07 3036.52 3056.09 3073.00 3091.48 3108.83 3129.06 3148.61 3167.64 3224.76 3244.41 3264.57 3286.27 3307.06 3327.40 41.03 41.07 41.10 41.18 41.31 41.46 41.67 41.89 42.13 42.43 42.71 43.03 43.36 43.71 44.04 44.36 44.69 45.03 45.34 45.68 46.00 46.36 46.70 47.02 47.97 48.28 48.60 48.95 49.28 49.61 2 of 7 DLS (deg/ 100f) 0.00 2.02 12.00 10.95 11.50 11.24 11.72 11.30 12.56 8.63 2.84 11.15 4.77 1.43 1.27 1.84 3.68 0.62 6.57 8.07 6.17 2.08 3.28 0.93 0.68 9.01 3.08 1.67 1.63 0.56 ------ ------ Srvy tool type Tool qual type ----- ------ ------ TIP Extrapolated Extrapolated MWD Inc. Only MWD Inc. Only ~.- MWD Inc. Only MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ~- MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD Inc. Only MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ANADRILL SCHLUMBERGER Survey Report --- -------- -------- ------ ------ Inel angle (deg) ------ ------ 64.58 66.14 68.47 70.72 72.83 74.82 76.55 78.03 79.67 80.19 79.41 79.07 78.90 78.83 78.59 78.65 78.63 78.69 78.55 80.33 83.10 84.83 85.38 87.95 89.84 90.77 92.41 93.17 93.13 93.75 ------- ------- ------ ------ Azimuth Course angle length (deg) (ft) ------- ------- 94.52 97.85 99.09 100.52 102.01 105.21 106.81 108.11 109.61 112.50 115.20 117.67 120.67 123.54 128.26 130.19 129.86 129.46 130.10 131.23 130.08 129.91 129.86 128.39 126.40 126.53 125.53 124.10 124.61 124.37 ------ ------ 32.91 31.57 30.82 32.97 30.54 30.61 31.95 30.80 31.76 30.98 30.68 31.74 28.53 31.75 32.51 32.15 31.68 29.09 32.65 34.50 26.67 33.82 31.83 28.57 32.13 30.85 31.42 29.81 31.03 30.82 [(c)2001 Anadrill IDEAL ID6_1C_10J Seq Measured # depth (ft) -------- -------- 31 32 33 34 35 10274.69 10306.26 10337.08 10370.05 10400.59 36 37 38 39 40 10431.20 10463.15 10493.95 10525.71 10556.69 41 42 43 44 45 10587.37 10619.11 10647.64 10679.39 10711.90 46 47 48 49 50 10744.05 10775.73 10804.82 10837.47 10871.97 51 52 53 54 55 10898.64 10932.46 10964.29 10992.86 11024.99 56 57 58 59 60 11055.84 11087.26 11117.07 11148.10 11178.92 ---------- -------- TVD depth (ft) -------- -------- 8871.94 8885.10 8896.99 8908.49 8918.04 8926.57 8934.47 8941.25 8947.39 8952.80 8958.24 8964.17 8969.62 8975.75 8982.12 8988.46 8994.70 9000.42 9006.86 9013.19 9017.03 9020.58 9023.30 9024.96 9025.58 9025.42 9024.55 9023.10 9021.39 9019.54 11-Nov-2001 15:06:40 -------- --------- Vertical section (ft) -------- -------- 1616.76 1644.49 1672.23 1702.53 1731.11 1760.26 1791.09 1821.07 1852.21 1882.71 1912.87 1943.91 1971.63 2002.21 2033.02 2062.97 2092.35 2119.39 2149.71 2181.66 2206.53 2238.34 2268.37 2295.48 2326.31 2356.06 2386.40 2415.33 2445.48 2475.41 Page 3 of 7 ----------------- ---------------- ------------------ ----------------- Displ +N/S- (ft) Displ +E/W- (ft) Total displ (ft) At Azim (deg) DLS (deg/ 100f) ------------------ ------------------ ----------------- ----------------- 2154.60 2151.50 2147.31 2142.05 2136.38 2129.46 2120.92 2111.90 2101.83 2090.87 2078.67 2064.78 2051.14 2034.58 2015.89 1995.97 1975.99 1957.79 1937.31 1915.21 1898.02 1876.40 1856.07 1838.07 1818.56 1800.23 1781.76 1764.76 1747.27 1729.85 2563.79 2592.31 2620.43 2650.88 2679.33 2707.89 2737.65 2766.31 2795.79 2824.25 2851.87 2879.79 2904.24 2930.62 2956.44 2980.85 3004.64 3026.60 3051.19 3076.92 3096.94 3122.71 3147.04 3169.17 3194.69 3219.50 3244.89 3269.34 3294.92 3320.27 3348.93 3368.83 3387.86 3408.16 3426.79 3444.89 3463.09 3480.31 3497.73 3513.99 3529.02 3543.52 3555.52 3567.64 3578.32 3587.39 3596.16 3604.61 3614.27 3624.29 3632.29 3643.10 3653.61 3663.62 3676.03 3688.63 3701.89 3715.23 3729.54 3743.88 49.96 50.31 50.67 51.06 51.43 51.82 52.23 52.64 53.06 53.49 53.91 54.36 54.77 55.23 55.71 56.19 56.67 57.10 57.59 58.10 58.50 59.00 59.47 59.89 60.35 60.79 61.23 61.64 62.06 62.48 7.23 10.79 8.42 7.94 8.32 11.96 7.27 6.33 6.94 9.34 9.03 7.72 10.34 8.87 14.26 5.89 1.02 1.36 1.97 6.08 11.24 5.14 1.73 10.36 8.54 3.04 6.11 5.43 1.65 2.16 ------ ------ Srvy tool type Tool qual type ------ ------- MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA --.. MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA - MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ANADRILL SCHLUMBERGER Survey Report -------- -------- Seq Measured # depth (ft) --- -------- -------- ------ ------ Incl angle (deg) ------ ------ 95.23 95.74 95.71 95.64 95.78 94.95 94.23 93.00 92.96 92.79 92.82 92.82 93.03 93.06 93.20 93.37 93.10 93.06 92.76 92.75 92.72 92.58 92.68 90.48 90.38 89.25 88.36 87.22 85.51 85.20 ------- ------- ------ ------ Azimuth Course angle length (deg) (ft) ------- ------- 123.49 122.45 121.96 123.04 122.22 118.85 117.20 115.49 113.52 114.07 114.46 114.13 114.69 115.38 116.09 115.58 114.50 114.13 113.31 113.03 112.63 112.88 112.88 113.64 113.05 112.86 113.40 115.27 116.44 116.65 ------ ------ 31.74 29.95 29.68 32.61 31.61 28.88 33.12 31.88 30.00 32.36 33.67 26.65 33.35 31.74 29.95 33.17 31.20 28.98 30.56 31.17 31.28 28.66 33.66 29.33 34.12 32.00 30.32 31.06 32.19 31.53 [(c)2001 Anadrill IDEAL ID6_1C_10] 61 62 63 64 65 11210.66 11240.61 11270.29 11302.90 11334.51 66 67 68 69 70 11363.39 11396.51 11428.39 11458.39 11490.75 71 72 73 74 75 11524.42 11551.07 11584.42 11616.16 11646.11 76 77 78 79 80 11679.28 11710.48 11739.46 11770.02 11801.19 81 82 83 84 85 11832.47 11861.13 11894.79 11924.12 11958.24 86 87 88 89 90 11990.24 12020.56 12051.62 12083.81 12115.34 -------- -------- TVD depth (ft) -------- -------- 9017.06 9014.19 9011.23 9008.01 9004.86 9002.16 8999.51 8997.50 8995.94 8994.32 8992.67 8991.36 8989.66 8987.97 8986.34 8984.44 8982.67 8981.12 8979.57 8978.07 8976.58 8975.25 8973.71 8972.90 8972.64 8972.75 8973.38 8974.58 8976.62 8979.17 11-Nov-2001 15:06:40 -------- -------- Vertical section (ft) -------- -------- 2506.26 2535.43 2564.41 2596.22 2627.04 2655.40 2688.17 2719.85 2749.75 2782.04 2815.61 2842.19 2875.44 2907.06 2936.87 2969.87 3000.95 3029.84 3060.33 3091.44 3122.67 3151.29 3184.90 3214.19 3248.28 3280.27 3310.56 3341.55 3373.56 3404.84 ---------------- ---------------- --------------- --------------- Page Displ +N/S- (ft) Displ +E/W- (ft) Total displ (ft) At Azim (deg) ---------------- ---------------- =============== 1712.19 1695.97 1680.23 1662.79 1645.83 1631.23 1615.72 1601.60 1589.17 1576.13 1562.31 1551.36 1537.60 1524.18 1511.20 1496.77 1483.59 1471.67 1459.40 1447.15 1435.02 1423.95 1410.88 1399.30 1385.78 1373.30 1361.39 1348.60 1334.59 1320.55 3346.53 3371.54 3396.53 3423.89 3450.38 3475.14 3504.29 3532.80 3560.06 3589.63 3620.29 3644.55 3674.88 3703.59 3730.53 3760.34 3788.56 3814.93 3842.88 3871.50 3900.29 3926.70 3957.67 3984.61 4015.93 4045.40 4073.28 4101.55 4130.46 4158.58 3759.10 3774.07 3789.40 3806.30 3822.81 3838.95 3858.83 3878.89 3898.65 3920.41 3943.01 3960.99 3983.58 4004.96 4025.00 4047.28 4068.69 4088.95 4110.66 4133.13 4155.91 4176.91 4201.64 4223.17 4248.31 4272.14 4294.76 4317.58 4340.72 4363.21 62.90 63.30 63.68 64.10 64.50 64.85 65.25 65.61 65.94 66.29 66.66 66.94 67.30 67.63 67.95 68.30 68.61 68.91 69.20 69.50 69.80 70.07 70.38 70.65 70.96 71.25 71.52 71.80 72.09 72.38 4 of 7 DLS (degl 100f) 5.42 3.85 1.65 3.30 2.62 11.97 5.42 6.60 6.56 1.78 1.16 1.24 1.79 2.17 2.41 1.65 3.53 1.28 2.85 0.90 1.28 1.00 0.30 7.94 1.75 3.58 3.43 7.05 6.43 1.19 ------ ------ Srvy tool type Tool qual type ----- ------ ------ MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA -~ MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA --, MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ANAD~¡LL SCHLUMBERGER Survey Report -------- -------- Seq Measured # depth (ft) --- 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 -------- -------- 91 92 93 94 95 12146.06 12177.43 12207.97 12239.32 12270.32 ------ ------ Incl angle (deg) ------ ------ 85.30 85.51 86.19 84.99 85.82 86.33 86.92 86.99 85.55 86.44 89.08 90.93 91.55 93.81 95.85 97.19 97.22 97.01 95.05 94.36 92.71 91.27 91.31 90.79 90.69 91.34 90.96 90.69 91.00 90.72 ------- ------- ------ ------ Azimuth Course angle length ( deg ) ( f t ) ------- ------- 117.08 116.98 116.33 114.55 115.19 114.17 113.77 113.81 114.28 114.84 113.81 113.60 113.36 114.32 116.10 117.03 116.30 117.26 118.21 118.74 119.03 119.02 119.97 119.96 118.73 118.59 119.69 118.56 119.18 119.46 ------ ------ 30.72 31.37 30.54 31.35 31.00 32.34 31.49 30.99 31.34 30.92 31.34 31.32 31.05 30.65 30.71 31.82 30.97 31.22 31.62 30.44 31.88 31.54 30.49 30.75 31.23 31.52 30.88 31.21 31.20 30.78 [(c)2001 Anadrill IDEAL ID6_1C_10J 12302.66 12334.15 12365.14 12396.48 12427.40 12458.74 12490.06 12521.11 12551.76 12582.47 12614.29 12645.26 12676.48 12708.10 12738.54 12770.42 12801.96 12832.45 12863.20 12894.43 12925.95 12956.83 12988.04 13019.24 13050.02 -------- -------- TVD depth (ft) -------- -------- 8981.71 8984.23 8986.44 8988.85 8991.33 8993.54 8995.40 8997.04 8999.08 9001.24 9002.47 9002.46 9001.79 9000.36 8997.77 8994.16 8990.28 8986.41 8983.09 8980.59 8978.63 8977.53 8976.84 8976.28 8975.88 8975.32 8974.70 8974.25 8973.79 8973.33 Il-Nov-2001 15:06:40 -------- -------- vertical section (ft) -------- -------- 3435.30 3466.40 3496.72 3527.88 3558.72 3590.92 3622.31 3653.22 3684.46 3715.24 3746.51 3777.79 3808.81 3839.39 3869.90 3901.37 3931.95 3962.78 3994.01 4024.10 4055.62 4086.84 4116.99 4147.37 4178.27 4209.52 4240.08 4270.98 4301.89 4332.35 ---------------- ---------------- Displ +N/S- (ft) Displ +E/W- (ft) ================ 1306.72 1292.50 1278.84 1265.41 1252.42 1238.95 1226.18 1213.69 1200.95 1188.13 1175.23 1162.64 1150.27 1137.90 1124.87 1110.73 1096.94 1082.98 1068.35 1053.89 1038.52 1023.22 1008.21 992.86 977.56 962.44 947.41 932.22 917.16 902.09 4185.89 4213.74 4240.96 4269.19 4297.22 4326.54 4355.26 4383.58 4412.14 4440.19 4468.72 4497.40 4525.87 4553.88 4581.56 4609.83 4637.29 4664.95 4692.78 4719.45 4747.31 4774.87 4801.40 4828.03 4855.25 4882.91 4909.87 4937.13 4964.45 4991.29 =============== Page Total displ (ft) At Azim (deg) =============== 4385.10 4407.51 4429.58 4452.78 4476.01 4500.44 4524.58 4548.50 4572.66 4596.41 4620.68 4645.25 4669.76 4693.89 4717.63 4741.76 4765.27 4789.01 4812.85 4835.68 4859.57 4883.27 4906.11 4929.06 4952.69 4976.85 5000.44 5024.37 5048.46 5072.15 72.66 72.95 73.22 73.49 73.75 74.02 74.28 74.52 74.77 75.02 75.27 75.51 75.74 75.97 76.21 76.45 76.69 76.93 77.17 77.41 77.66 77.90 78.14 78.38 78.62 78.85 79.08 79.31 79.53 79.76 5 of 7 DLS (deg/ 100f) 1.43 0.74 3.08 6.83 3.38 3.52 2.26 0.26 4.83 3.40 9.04 5.94 2.14 8.01 8.80 5.12 2.34 3.12 6.88 2.85 5.25 4.57 3.12 1.69 3.95 2.11 3.77 3.72 2.22 1.29 ------ ------ Srvy tool type Tool qual type ------ ------ MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ~ MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ..-,- MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ANADRILL SCHLUMBERGER Survey Report --- -------- -------- ------ ------ Incl angle (deg) ------ ------ 90.21 89.73 89.46 89.83 89.73 90.79 90.11 89.70 87.64 87.91 88.29 88.08 87.84 87.57 88.12 88.02 88.53 89.63 90.93 91.99 93.54 94.09 93.77 93.26 93.16 93.09 93.54 93.64 93.43 93.43 ------- ------- ------ ------ Azimuth Course angle length (deg) (ft) ------- ------- 118.07 118.60 119.40 118.64 118.44 117.25 116.49 116.09 114.18 114.10 114.42 113.89 114.33 115.13 114.71 114.40 110.64 111.97 111.13 112.61 114.21 113.83 113.66 114.47 114.25 115.04 115.27 115.25 116.34 116.71 ------ ------ 31.39 30.96 31.01 31.51 30.46 31.14 30.78 32.06 30.83 31.08 30.68 31.65 31.63 30.64 31.11 32.23 31.14 30.91 31.38 31.62 31.33 30.95 31.80 30.13 29.91 32.24 30.83 30.98 31.11 31.59 ({c)2001 Anadrill IDEAL ID6_1C_10J Seq Measured # depth (ft) --- -------- -------- 121 122 123 124 125 13081.41 13112.37 13143.38 13174.89 13205.35 126 127 128 129 130 13236.49 13267.27 13299.33 13330.16 13361.24 131 132 133 134 135 13391.92 13423.57 13455.20 13485.84 13516.95 136 137 138 139 140 13549.18 13580.32 13611.23 13642.61 13674.23 141 142 143 144 145 13705.56 13736.51 13768.31 13798.44 13828.35 146 147 148 149 150 13860.59 13891.42 13922.40 13953.51 13985.10 -------- -------- TVD depth (ft) -------- -------- 8973.07 8973.09 8973.31 8973.50 8973.62 8973.48 8973.24 8973.29 8974.01 8975.21 8976.23 8977.23 8978.36 8979.59 8980.76 8981.84 8982.78 8983.27 8983.12 8982.32 8980.80 8978.74 8976.56 8974.72 8973.04 8971.28 8969.50 8967.56 8965.64 8963.75 11-Nov-2001 15:06:40 -------- -------- vertical section (ft) -------- -------- 4363.46 4394.17 4424.89 4456.09 4486.30 4517.22 4547.84 4579.77 4610.51 4641.52 4672.14 4703.73 4735.29 4765.85 4796.87 4829.02 4860.13 4891.03 4922.41 4954.02 4985.28 5016.12 5047.81 5077.85 5107.66 5139.79 5170.49 5201.33 5232.27 5263.67 ---------------- ---------------- Displ +N/S- (ft) Displ +E/W- (ft) ================ 886.98 872.29 857.25 841.97 827.41 812.87 798.96 784.76 771.67 758.97 746.37 733.42 720.51 707.70 694.61 681.22 669.30 658.07 646.55 634.77 622.34 609.77 596.99 584.73 572.41 558.99 545.91 532.71 519.20 505.12 5018.80 5046.05 5073.17 5100.73 5127.48 5155.02 5182.47 5211.22 5239.12 5267.46 5295.41 5324.28 5353.13 5380.94 5409.13 5438.43 5467.18 5495.97 5525.15 5554.49 5583.20 5611.41 5640.45 5667.91 5695.11 5724.37 5752.23 5780.20 5808.15 5836.37 --------------- Page --------------- Total displ (ft) At Azim (deg) =============== 5096.58 5120.89 5145.09 5169.75 5193.81 5218.71 5243.70 5269.97 5295.64 5321.86 5347.75 5374.56 5401.40 5427.28 5453.55 5480.93 5507.99 5535.23 5562.85 5590.64 5617.78 5644.44 5671.96 5697.99 5723.81 5751.60 5778.08 5804.69 5831.31 5858.18 79.98 80.19 80.41 80.63 80.83 81.04 81.24 81.44 81.62 81.80 81.98 82.16 82.33 82.51 82.68 82.86 83.02 83.17 83.33 83.48 83.64 83.80 83.96 84.11 84.26 84.42 84.58 84.73 84.89 85.05 6 of 7 DLS (degl 100f) ----- 4.72 2.31 2.72 2.68 0.73 5.12 3.31 1.79 9.11 0.91 1.62 1.80 1.58 2.75 2.22 1.01 12.18 5.58 4.93 5.76 7.11 2.16 1.14 3.17 0.81 2.46 1.64 0.33 3.56 1.17 ------ ------ Srvy tool type Tool qual type ------ ----- ------ MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA r- MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ~ MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA ANADRILL SCHLUMBERGER Survey Report -------- -------- Seq Measured it depth (ft) --- -------- -------- ------ ------ Incl angle (deg) ------ ------ 91.96 90.52 89.76 87.29 86.82 87.53 87.67 87.71 87.71 87.64 88.22 88.43 88.32 88.36 88.77 88.42 88.32 89.35 90.00 91.00 91.20 91.27 91.13 89.83 89.76 ------- ------- ------ ------ Azimuth Course angle length ( deg ) ( f t ) ------- ------- 115.14 114.36 114.37 115.61 116.17 115.88 116.76 116.28 115.98 116.47 116.78 117.24 117.95 116.35 115.81 113.34 111.69 110.60 110.63 110.55 110.39 111.41 112.16 113.23 113.14 89.90 113.77 89.73 114.32 89.18 114.69 Final Projected Survey at TD: 179 14892.00 90.20 113.00 151 152 153 154 155 14015.27 14046.28 14077.63 14109.13 14140.10 ------ ------ 30.17 31.01 31.35 31.50 30.97 31.69 30.71 30.88 31.25 30.75 31.14 31.38 33.11 30.37 31.16 30.76 31.58 30.03 30.77 30.62 32.07 29.43 32.25 31.35 32.01 29.80 31.22 18.37 49.20 [(c)2001 Anadrill IDEAL ID6_1C_10] 156 157 158 159 160 14171.79 14202.50 14233.38 14264.63 14295.38 161 162 163 164 165 14326.52 14357.90 14391.01 14421.38 14452.54 166 167 168 169 170 14483.30 14514.88 14544.91 14575.68 14606.30 171 172 173 174 175 14638.37 14667.80 14700.05 14731.40 14763.41 176 14793.21 177 14824.43 178 14842.80 -------- -------- TVD depth (ft) -------- -------- 8962.33 8961.66 8961.59 8962.40 8963.99 8965.55 8966.84 8968.08 8969.33 8970.58 8971.70 8972.62 8973.56 8974.44 8975.22 8975.97 8976.87 8977.48 8977.66 8977.39 8976.77 8976.14 8975.46 8975.20 8975.31 8975.40 8975.50 8975.68 8975.95 11-Nov-2001 15:06:40 -------- -------- Vertical section (ft) -------- -------- 5293.69 5324.63 5355.93 5387.34 5418.17 5449.70 5480.25 5510.97 5542.07 5572.68 5603.65 5634.85 5667.73 5697.92 5728.95 5759.64 5791.20 5821.22 5851.99 5882.61 5914.67 5944.09 5976.33 6007.67 6039.66 6069.43 6100.61 6118.95 6168.09 ---------------- ---------------- Displ +N/S- (ft) Displ +E/W- (ft) ================ 491.94 478.97 466.03 452.73 439.23 425.34 411.73 397.96 384.21 370.63 356.68 342.44 327.11 313.25 299.56 286.77 274.68 263.85 253.02 242.25 231.04 220.54 208.58 196.48 183.88 5863.47 5891.62 5920.18 5948.72 5976.54 6004.99 6032.49 6060.10 6088.13 6115.69 6143.51 6171.46 6200.79 6227.80 6255.78 6283.74 6312.90 6340.90 6369.70 6398.36 6428.40 6455.89 6485.83 6514.75 6544.18 --------------- Page --------------- Total displ (ft) At Az im (deg) =============== 5884.07 5911.06 5938.49 5965.92 5992.66 6020.03 6046.52 6073.15 6100.24 6126.91 6153.86 6180.95 6209.41 6235.67 6262.95 6290.28 6318.87 6346.39 6374.72 6402.95 6432.55 6459.66 6489.18 6517.71 6546.76 172.02 6571.51 6573.76 159.30 6600.02 6601.95 151.68 6616.74 6618.48 131.79 6661.73 6663.04 85.20 85.35 85.50 85.65 85.80 85.95 86.10 86.24 86.39 86.53 86.68 86.82 86.98 87.12 87.26 87.39 87.51 87.62 87.73 87.83 87.94 88.04 .88.16 88.27 88.39 88.50 88.62 88.69 88.87 7 of 7 DLS (deg/ 100f) 7.12 5.28 2.42 8.77 2.36 2.42 2.90 1.56 0.96 1.61 2.11 1.61 2.17 5.27 2.18 8.11 5.23 4.99 2.11 3.28 0.80 3.47 2.37 5.37 0.36 ------ ------ Srvy tool type Tool qual type ------ ----- ------ MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA -, MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA .-., MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA MWD_IFR_MSA 2.17 MWD_IFR_MSA 1.84 MWD_IFR_MSA 3.61 MWD_IFR_MSA 4.01 Projected 01 /14/02 Sc.llnbepger NO. 1716 Alaska Data & Consulting Services 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 ATTN: Sherrle Company: State of Alaska Alaska 011 & Gas Cons Comm Aftn: LIsa Weeple 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay ~~ Well Job # Log Description Date Bluellne Sepia Color Prints CD G-19A 1U4-JO~~ 21505 MCNL 11/07/01 1 1 1 W-21 A 21507 PP,IMP,ARC & DIN 11/10/01 1 W-21A rl()/- , I) 21507 MD VISION RESISTIVITY 11/10/01 1 1 W-21 A 21507 TVD VISION RESISTIVITY 11/10/01 1 1 W-21A 21507 MD VISION DIN 11/10/01 1 1 W-21 A 21507 TVD VISION DIN 11/10/01 1 1 D.S. 7-16A ~ OJ-/~C;S -~ 21520 PP ,ARC 09/09/01 1 D.S.7-16A 21520 MD VISION RESISTIVITY 09/09/01 1 1 D.S. 7-16A 21520 TVD VISION RESISTIVITY 09/09/01 1 1 ~.....#' PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotectnlcal Data Center LR2- 1 900 E. Benson Blvd. Anchorage. Alaska 99508 RECEIVED Schlumberger GeoQuest 3940 Arctic Blvd. Suite 300 Anchorage. AK 99503-5711 ATTN: Sherrie Date Delivered: JAt:Lli2DD2 Ala8kaOO & Gas Cons. Commission Anchorage Receivedb~ ~ Customer Well No Installation/Rig Data Surveys Received By: ( MWD/LWD Log Product Delivery BP Exploration (Alaska) Inc. Dispatched To: W-21 A Date Dispatche Nabors 9ES Dispatched By: ( Lisa Wee pie 27-Nov-01 Nate Rose No Of Prints No of Flo ies aOJ- /II 2 DEC 0 !~ 2001 RE EIVE . Alaska on 8. G s Cons" Commis 'ion AI chorage LWD Log Delivery V1.1 , Dec '97 Please sign and return to: Anadrill LWD Division 3940 Arctic Blvd, Suite 300 Anchorage, Alaska 99503 nrose1 @slb.com Fax: 907-561-8417 Re: RecommencementofW~21A(PTD 201-111) ~ Subject: Re: Recommencement of W-21A (PTD 201-111) Date: Mon, 22 Oct 2001 12:33:31 -0800 From: Tom Maunder <tom_maunder@admin.state.ak.us> To: "Magee, D Neil" <MageeDN@BP.com> cc: "Robertson, Brian B" <RobertBB@BP .com>, "NSU, ADW Drlg Rig ges" <NSUADWDrlgRigges@BP.com>, AOGCC North Slope Office <aogcc_prudhoe_bay@admin.state.ak.us> Brian and Neil, Thanks for the notice. I checked the sundry shutting down the operations and it was indicated that you would return "within" 12 months. Looks like you more than meet that prediction. By copy of this email, your intent to return to the well to continue operations is acknowledged. No other paperwork is necessary at this time. Please contact the Field Inspector as normal for the opportunity to witness the initial BOP test. The requirements listed in the permit to drill letter dated June 8, 2001 are still valid. Please call with any other questions Tom Maunder, PE AOGCC "Magee, 0 Neil" wrote: > Dear Tom, > > Well W-21A was temporarily suspended 17 June 2001 after recovering the > existing tubing string to a depth of 9419' and isolating the well with a > bridge plug set at 9347'. Thereafter the wellbore was tested to 3500 psi for > 30 minutes and a 2200' kill string was hung off in the well. > The Nabors 7£S rig then moved off and cleared the Kuparuk River Bridge prior > to the bridge outage to continue work on the east side of the Prudhoe Bay >~~ I :> > Nabors 9ES will now be mobilized to ra-commence operation on Well 21A. The > kill string will be recoved and operations will resume to sidetrack the well > as per the original Permit to Drill approved on 6/8/01. :> > Regards, > Neil Magee > Alaska Drilling & Wells > 907 564-5119 Office > 907 564-4040 Fax > 907240-8038 Cell Tom Maunder <tom maunder@admin.state.ak.us> Sr. Petroleum Engineer Alaska Oil and Gas Conservation Commission 10f2 10/22/01 12:33 PM ,~ STATE OF ALASKA ( ALAS~. ..JIL AND GAS CONSERVATION coJ"....;SION APPLICATION FOR SUNDRY APPROVAL ~tr ~ 'Plc' ~ ,r 7/ð 1. Type of Request: 0 Abandon 0 Suspend 0 Plugging 0 Time Extension 0 Perforate 0 Alter Casing 0 Repair Well 0 Pull Tubing 0 Variance 0 Other 0 Change Approved Program II Operation Shutdown 0 Re-Enter Suspended Well 0 Stimulate 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519-6612 5. Type of well: 181 Development 0 Exploratory 0 Stratigraphic 0 Service 6. Datum Elevation (OF or KB) Plan KBE = 84.46' 7. Unit or Property Name Prudhoe Bay Unit 4. Location of well at surface 626' SNL, 1180' WEL, SEC. 21, T11 N, R12E, UM At top of productive interval 1702' NSL, 3746' WEL, SEC. 15, T11N, R12E, UM (As Planned) At effective depth 8. Well Number W-21 A 9. Permit Number 201-111 10. API Number 50.;029-21929-01 11. Field and Pool Prudhoe Bay Field / Prudhoe Bay Pool At total depth 4823' NSL, 5068' WEL, SEC. 23, T11N, R12E, UM (As Planned) 12. Present well condition summary Total depth: measured true vertical 11514 feet 9103 feet 9850 feet 8676 feet Plugs (measured) P&A Plug, 65 Bbls Class 'G', TOC at 9850' (06/01) Set EZSV at 9347' (06/01) true vertical Effective depth: measured Junk (measured) Fish (Below P&A Plug): Baker packer, 16' of 2-7/8" tubing and perf guns at 10329' Casing Structural Conductor Surface Intermediate Production Liner Length Size Cemented MD TVD 110' 20" 2710' 13-3/8" 10121' 9-5/8" 1646' 5-1/2" 3840 cu ft Coldset II and III 2122 cu ft Class 'G' 110' 2710' 10121 ' 110' 2708' 8804' 650 cu ft Class 'GRECEIVEÖ868'-11514' 8685' - 9103' Perforation depth: measured None JUN 2 1 2001 true vertical None Alaska Oil & Gas Cons. Commission Anchorage Tubing (size, grade, and measured depth) 3-1/2",9.2#, L-80 to 2200'; 3-1/2",9.2#, L-80 9419' - 9862' Packers and SSSV (type and measured depth) External casing packer at 10791'; 5-1/2" Baker packer at 10350'; 9-5/8" TIW packer at 9784' 13. Attachments 181 Description Summary of Proposal 0 Detailed Operations Program 15. Status of well classifications as: 181 Oil 0 Gas 0 Suspended 0 BOP Sketch 14. Estimated date for commencing operation June 17,2001 16. If proposal was verbally approved Service Name of approver Date Approved Contact Engineer Name/Number: Bil/lsaacson, 564-5521 Prepared By Name/Number: Terrie Hubble, 564-4628 17. I ~ereby certify t~~t ¡he.fOre,ing is true and c9rrect t? the best of my knowledge Signed D St W" -l ~Oo~ (ìi«'...-f..ritle Senior Drilling Engineer Date "¡,,,[ Z'. zee ~ an one'\.. . ,,,-~ IF' J - . Conditions of Approval: Notify Commission so representative may witness Plug integrity - BOP Test - Location clearance - . 1 Mechanical, Integrity Test - Subsequent form required 10- 40 L/ \O~4ð3 Lú1lfÄfpfre. Ln 18 mon-lhð (DLd-mber' 2.1,2CŒ)# A roved b order of the Commission \I'.JINAL SrGNED BY Form 10-403 Rev. 06/15/88 Commissioner . . ,'v or 1<ftj I N A L ~ RDUI Ir I1ISU 1..WlI. WD1S (. (' June 21, 2001 Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West ih Ave, Suite 100 Anchorage, AK 99501 (907) 279-1433 (907) 276-7542 (fax) Re: Operations Shutdown on PBU Well W-21 A (Sundry #301-135/ Permit #201-111) Dear Mr. Maunder, This letter is to communicate the status of the operation shutdown on P8U Well W-21 A (Permit #201-111). The W-21A sidetrack was originally planned for spud later this year, however the well became a last minute contingency for Nabors rig 7ES due to the Kuparuk River bridge outage. The existing W-21 wellbore was successfully P&A'd, decompleted and left in a status to allow for future re-entry and sidetrack operations. These operations are planned to commence within the next twelve months. Nabors 7ES was completing operations on Well W-201 with plans to move across to the east side of the field to P8U Well 18-048, when the Kuparuk River bridge was closed due to high waters. As a contingency, the rig was moved to W-21 to commence operations on the W-21A sidetrack. Plans called for operations on W-21 A to continue until the bridge was re-opened, and a good shutdown / suspension point could be reached. The desire was to get back across to the east side of the river as soon as the bridge opened, and continue with the existing 7ES schedule. An extended maintenance program is scheduled for the Kuparuk River bridge in early July, and will reduce traffic to single lane access (no rigs). If operations were continued on Well W-21 A (planned as a -28 day well), the chance of getting the rig stuck on the west side of the Kuparuk River for an extended period of time was high. Pre-rig P&A operations on W-21 were completed as per the approved Sundry (#301-135) and the cement plug successfully tested to 1500 psi for 30 minutes. Rig operations encountered difficulties during decompletion operations, however the tubing string was eventually recovered down to a depth of 9419' wire-line depth. A bridge plug was set at 9347' MD to allow for a whipstock sidetrack exit at -9320' MD (180' high of what was originally planned). The well bore was then successfully tested to 3500 psi for 30 minutes and a kill string run in the well to -2200' MD. The rig was released from W-21A on June 17, 2001. If you have any questions or require any additional information on this matter, please contact me at 564-5521 . Sincerely, William S. Isaacson Drilling Engineer Alaska Drilling & Wells ,. ~1r~uŒ ffiJ~ ~~~~~LÆ (,' ALASIiA OIL AND GAS CONSERVATION COMMISSION / / / / / TONY KNOWLES, GOVERNOR 333 W. 7'"" AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Dan Stone Senior Drilling Engineer BP Exploration (Alaska) Inc. POBox 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Unit W-21A BP Exploration (Alaska) Inc. Permit No: 201-111 Sur Loc: 626'SNL, 1180'WEL, Sec. 21, T11N, R12E, UM Btmhole Loc. 4823'NSL, 5068'WEL, Sec. 23, T11N, R12E, UM Dear Mr. Stone: Enclosed is the approved application for permit to re-drill the above referenced well. The permit to drill does not exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. Annular disposal has not been requested as. part of the Permit to Drill application for Prudhoe Bay Unit W-21A. Blowout prevention equipment (BOPE) must be tested in accordance with 20 AAC 25 035. Sufficient notice (approximately 24 hours) must be given to allow a representative of the Commission to witness a test ofBOPE installed prior to drilling new hole. Notice may be given by contacting the Commission petroleum field inspector on the North Slope pager at 659-3607. . BY ORDER OF THE COMMISSION DATED this ?/-£¡. day of June, 2001 jj cÆn closures cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. ( STATE OF ALASKA { ALASKA OIL AND GAS CONSERVATION COMMISvI0N PERMIT TO DRILL 20 AAC 25.005 h(r: {# 11 b. Type of well 1 a. Type of work 0 Drill IRI Redrill 0 Re-Entry 0 Deepen 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 626' SNL, 1180' WEL, SEC. 21, T11N, R12E, UM At top of productive interval 1702' NSL, 3746' WEL, SEC. 15, T11N, R12E, UM At total depth 4823' NSL, 5068' WEL, SEC. 23, T11 N, R12E, UM 12. Distance to nearest property line 113. Distance to nearest well ADL 028263-2, 211' MD 1 No Close Approach 16. To be completed for deviated wells Kick Off Depth 9500' MD Maximum Hole Angle 18. Casin~ Program Specifications Size Hole Casina Weiaht Grade CouDlina Lenath 8-1/2" 7" 26# L-80 BTC-M 676' 6-1/8" 4-1/2" 9.3# 13Cr Vam Ace 5219' 19. To be completed for Red rill , Re-entry, and Deepen Operations. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Structural Conductor Surface Intermediate Production Liner 11514 feet 9103 feet 11391 feet 9085 feet Length Size 0 Exploratory 0 Stratigraphic Test IRI Development Oil 0 Service 0 Development Gas 0 Single Zone 0 Multiple Zone 5. Datum Elevation (DF or KB) 10. Field and Pool Plan KBE = 84.46' Prudhoe Bay Field / Prudhoe 6. Property Designation Bay Pool ADL 047451 7. Unit or Property Name Prudhoe Bay Unit 8. Well Number W-21 A 9. Approximate spud date 06/15/01 Amount $200,000.00 14. Number of acres in property 15. Proposed depth (MD and TVD) 2560 15095' MD / 8954' TVD 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} 94 0 Maximum surface ~Sig, At total depth (TVD) ~ I 4048 psig Setting Depth d-<6~\ fri-."'¡V C.(Ç;. ~~~ ~,6ö T OD Bottom Quantitv of Cement MD TVD MD TVD include staae data) 9350' 8136' 10026' 8794' 141 cu ft Class 'G' 9876' 8705' 15095' 8954' 745 cu ft Class 'G' 11. Type Bond (See 20 AAC 25.025) Number 2S100302630-277 ~'1.1\"~ I'f")~'! ¿.IJ.'r:, \?r",A' II! 'rI ç,;' , ~¡JLI:t t ~.\: I:" \ f,~" ~ \1,1 ~- fr ~ Plugs (measured) Junk (measured) Fish: Baker pack¿~!::~h~~-7/~I~,tub¡~g.a~(r"psrtg:ùns at 10329' ',. Cemented TVD MD 110' 20" 2710' 13-3/8" 3840 cu ft Coldset II and III 10121 ' 9-5/8" 2122 cu ft Class 'G' 1646' 5-1/2" 650 cu ft Class 'G' 110' 2710' 10121 ' 110' 2708' 8804' 9868' - 11514' 8685' - 9103' true vertical 10825' - 10830', 10850' - 10950', 10975' - 11140', 11220' - 11230' 9000' - 9001', 9004' - 9022', 9026' - 9049', 9060' - 9062' Perforation depth: measured IRI Filing Fee 0 Property Plat 0 BOP Sketch 0 Diverter Sketch IRI Drilling Program II Drilling Fluid Program 0 Time vs Depth Plot 0 Refraction Analysis 0 Seabed Report 0 20 AAC 25.050 Requirements Contact Engineer Name/Number: Scott, Kolstad, 564-5347 Prepared By Name/Number: Terrie Hubble, 564-4628 21. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed Dan Stone ~-- -ror¡ ,~ Title Senior Drilling Engineer Date 'ISle, I':':: ,'.. ,::;::,.:,.,'... .',;:' :,::: ::?:;:::,<.:.::.'; ::i.: ..\',,:,: :'.,: :," ,.:,¡:::",,:,::r':,::i: :::"¡." '...;',,'F:.; ...:: :;,:'.i .:. ""'.::::..' ",.,.: . ',..,: :",::.':..;i:: ::'.; '::.:,,'¡,::;.,:::::::::::';:.",' ':':,,i': "., :<,.::: ,{\/: :;:':. :.,..:''":::: Permit Number API Number (4\P~ov lW~te 1 See cover letter 20 / - / ~ 50- 029-21929-01 V ^ U \ for other requirements Conditions of Approval: Samples Required 0 Yes 13 No Mud Ldg Ftêquired 0 Yes ~NO Hydrogen Sulfide Measures 8 Yes 0 No Directional Survey Required ;5 Yes 0 No Required Working Pressure for BOPE 0 2K 0 3K 0 4K 0 5K 0 10K 0 15K Â..3.5K psi »t 81U Other: ORIGINAL SIGNED BY by order of Date /I f} J () ì ìf i 0 Taylor Seamount Commissioner the commission (y IÍ / f) I 20. Attachments Approved By Form 10-401 Rev. 12-01-85 ORIGINAL submÆ If, Triplicate ( ( I Well Name: IW-21A Sidetrack Plan Summary I Type of Redrill (producer or injector)~ Producer Surface Location: Y:5959631 X: 612049 626' SNL & 1180' WEL, Sec 21, T11 N, R12E Top of Productive Y:5961999 X: 614722 Interval: TSAD 1702' FSL,3746' FEL,Sec15,T11N, R12E Bottom Hole Location: Y: 5959903 X: 618716 TVD 8954' 4823' FSL, 5068'FEL, Sec 23, T11 N, R12E MD 15095' Well Design: Objective: 1. Sidetrack out of 9-5/8" 47# @ +/-9500' MD. 2. Drill 8-1/2" 526 ft Intermediate hole directionally to TSGR @ -10,026' MD. 3. Set & cement 7,26#, L-80 BTC-M drilling liner 4. Drill 5069 ft of 6-1/8" horizontal production hole into Zone 4 @ 15095'TD. Set & cement 4 Y2" solid, 12.6#, 13Cr production liner. 5. Install 4 Y2" 13Cr 12.6# tubin , GLM's and com letion acker. Development producer targeting sands in Zone 4 Ivishak. Mud Program: 8-1/2" Intermediate Hole (9500-10026'): LSND Mud Interval Density Viscosity VP PV Gel-10 Fluid (ppg) (seconds) sec Loss Millinq 10.8 45-55 25-30 1 0-15 19/55 15 Interval TO 10.8 45-55 20-27 1 0-18 12/25 <10 6-1/8" Production hole( 10026-15095): 4% NaCI Quickdriln Interval Density Viscosity VP PV pH API HTHP (ppg) (seconds) Fi Itrate Fi Itrate Prod. Csg 8.5-8.7 40-50 20-25 5-8 9.0-9.5 <10 E(~EiVEe~ ()IE) 2.001 1 ß¡jaska on s~ Gas COGS. ( (" Hydraulics: Intermediate Hole: 8-1/2" Interval Pump Drill AV Pump PSI ECD Motor Jet Nozzles TFA GPM Pipe (fpm) ppg-emw ("/32) (in2) 9500-1 0046 500 4" 14.0# N/A Production Hole: 8-1/8" Interval Pump Drill AV Pump PSI ECD Motor Jet Nozzles TFA GPM Pipe (fpm) ppg-emw ("/32) I (in2) 10046-15095 300 4" 14.0# N/A I Directional: W-21A see attached Ian KOP: 9500',46 degrees on a 36 de ree azimuth. Intermediate Hole: Build inclination to 57 degrees and turn from 36 to 72 de ree azimuth at TSGR. Build to 94 de rees and turn to 113 deg final azimuth. There are no close approach concerns Production Hole: Close A roach: L p ogglng rogram: Intermediate: Drilling: DIR / GR Production Hole Drilling: DIR / GR / Res / NEU FORMATION TOPS TVDss TVD MD COMMENTS TOP KINGAK 7380 TJF 7709 TJE 7914 TJD 8129 TJC 8405 TJB 8545 TJA 8622 TOP SAG RIVER 8710 3,700 psi Pore Pressure, 8.2 PPQ EMW SHUBLIK A 8742 3,700 psi Pore Pressure, 8.2 PPQ EMW *Z-38 experienced a kick which required a 9.6- 10.5 ppg MW to kill. This is not considered likely SHUBLlCK B 8800 in W-21 A SHUBLlCK C 8830 TSAD 8860 3,660 psi Pore Pressure, 8.0 PPQ EMW MAX TVD ss 8950 3,660 psi Pore Pressure, 7.95 PPQ EMW Not HOT Reached POWC 8935 2 I( I"' ~ Casingrrubing Program: Hole Csgl WtlFt Grade Conn Length Top Btm Size Tbg O.D. MD/TVD MD/TVD bkb 8-1/2" 7" 26# L-80 BTC-M -676' 9350'/8136' 10026'/8794' 6-1/8" 4-1/2" 9.3# 13 Cr Vam -5,219' 9876'/8705' 15095'/8954' Ace Tubing 4-1/2" 12.6# 13 Cr Vam -9,876' % 9876'/8705' Ace Casin Size 7" Intermediate Drilling Liner Design Lead: Based on open hole volume +30% excess, 150' liner lap, 82' shoe track, and 200' Basis: 4" DP x 9 5/8" annulus. Lead TOC: To of 7" liner to acker Total Cement Volume: Lead 25 bbls/ 141 CF 1121 sx of G, 15.8 ppg, 1.16 cf/sk. Casin Size 4-1/2" Production Liner Design Lead: NI A Basis: Lead TOC: NIA Tail: Based on open hole volume around 4 Y2" liner + 50% excess, 150' liner lap, 82' shoe track, and 200' 7" x 4" DP annulus. Tail TOC: To of 4%" liner to acker. Total Cement Volume: Lead N/A Tail 133 bblsl 745 CFI 643 sx of G, 15.8 , 1 .17 dIsk. Well Control: Well control equipment consisting of 5000 psi working pressure pipe rams(2), blind/shear rams, and annular preventer will be installed and capable of handling maximum potential surface pressures. Diverter, BOPE and drilling fluid system schematics on file with the AOGCC. . Maximum Anticipated Surface Pressure: (based on BHP & full gas column at 0.10 psi/H). . Section Max Sfc Pres. Presv TVD Gas Grad. EMW FM Interm ediate 2821 3700 8794 0.1 8.2 Sag R Production 2821 3700 8794 0.1 8.2 Sag R Production 2766 3660 8945 0.1 8.0 Zone 4 . Planned BOP test pressure: . Planned completion fluid: 3500 psi Intermediate/3500 psi Production 8.6 ppg Seawater/ Perf pill /6.8 ppg Diesel 3 [¡"I ~ ( Dri II i nQ Hazards/Conti ngencies Hydrogen Sulfide- H2S: HYDROGEN SULFIDE - H2S This drill-site not designated as an H2S drill site. Standard Operating Procedures for H2S precautions should be followed at all times. Intermediate Hole Section ./ Tight hole, Torque, Packing-off and Stuck Pipe have been encountered on this drill-site. Approximately 500' of Kingak shale will be drilled prior to running and cementing the 7" drilling liner. It is advisable to minimize pressure surges while drilling, tripping, and running liner. After sidetracking the intermediate hole angle will be built to 57 degrees inclination to casing point. Good drilling practices and 10.8 ppg mud weight will be used to maintain the shales in the intermediate hole section. Also, asphalt shale products such as Baranex and Barotrol in the mud system and the HTHP filtrate values below 10 cc/30 minute will assist with shale stability. ./ Prior to drilling out a 10.8 ppg mud weight should be in place for drilling the Kingak shale. ./ It is critical that the intermediate casing depth be located at the Top of the Sag River(TSGR). The site geologist should be on location to correlate depths, analyze cuttings, and to advise on setting depth. Hydrocarbons could be present in the intermediate section when approaching the TSGR. Follow good well control practices at all times. Monitor pit volumes and mud returns for any signs of insufficient mud weight. ./ KICK TOLERANCE: In the INTERMEDlA TE open hole section expect an infinite kick tolerance assuming a lOA PPG EMW hydrocarbon influx at section TD. See Kick Tolerance Worksheet. ./ There are no close approach wells associated with the directional plan for this well. Production Hole Section ./ KICK TOLERANCE The Production hole has an infinite kick tolerance assuming a hydrocarbon influx at section TD. This is a worst case scenario based on a 9.0 ppg pore pressure, a minimum fracture gradient of 12.0 ppg at the intermediate casing shoe, and 9.0 ppg mud in the hole. Perform F.I.T. to 9.5 ppg 20' after drilling out liner. See Kick Tolerance Worksheet. 4 ( (' ./ Stuck pipe and lost circulation are major threats whilst drilling below the Sag River through the Sadlerochit productive interval. Losses of up to 7800 bbls have been reported in wells from W pad while drilling the below the Sag River. The lost circulation decision tree should be utilized in the event of lost returns. A contingency water source should be hard-lined to the casing annulus. ./ The mud weight should be maintained at < 8.7ppg with solids control and dilution. ./ Two fault crossings are planned. ./ Have produced water line tied into wellhead annulus as a contingency for severe lost circulation. 5 ( ~ Procedure Summary 1. MIRU Nabors Rig. Circulate out freeze protection and displace well to seawater. Ensure BPV is set. Nipple down tree. Nipple up and test BOPE. 2. Pull and lay down 3 1/2" production tubing, SSSV nipple, control line and GLM's from E- line cut. Check tubing for NORM and record on Morning Report. Replace 9-5/8" casing head pack off if required. 3. PU 4" DP and 8-1/2" watermelon mill assembly to whipstock depth. Note the whipstock depth at +1-9500' MD is at 46 degrees inclination at an azimuth of 36 degrees and a TVDss of 8467'. The TJD Kingak Shale formation is opposite the proposed side-track depth. Set a 9-5/8"" CIBP on E-line at whipstock depth to accommodate a window at 9500'. (Set per Baker recommended depth to avoid milling casing collar). Pressure test 9 5/8" casing to 3500 psi. 4. TIH with 9-5/8" Baker bottom-trip anchor whip-stock! 8-1/2" mill assembly. Orient whip- stock to -81 deg right of high side with MWD as required and set. Displace with 10.8 ppg LSND mud prior to drilling through window. Mill window through 9 5/8" casing string and approximately 20' of new formation. Perform FIT to 12.5 ppg EMW prior to POOH. 5. Run in hole with directional drilling assembly. Kick-off and drill 8-1/2" borehole into the top of the Sag River formation at -8794' TVDss and -10026' MD. Run MWD/GR. 6. Run and cement a 7", 26# L-80, BTC-M intermediate drilling liner with 150' of lap to TO. POOH. Pump cement, drop DP wiper plug, and displace with mud. Hydraulic set liner hanger and ZXP packer. Unsting and circulate cement from liner top. 7. Make up and RIH with a 6-1/8" bit and directional assembly. TIH to the landing collar and test the 9 5/8" and 7" liner from the landing collar to surface to 3500 psi for 30 minutes. 8. Prior to drilling out shoe displace wI QuickDril mud. Drill 20' of new hole and perform FIT to 9.5 ppg EMW. Drill approximately 5069' of 6-1/8" hole to TD in Zone 4. Run MWD/GR/RES/NEU real time LWD. Spot liner running pill in open hole. 9. Run 4 Y2", 12.6# 13Cr solid production liner, with 150' of liner lap to TD. Pump cement, drop wiper plug and displace with "2% KCL perf pill" followed by mud. Hydraulic set liner hanger and ZXP packer, un sting and circulate cement from liner top. 10. Test the 4-1/2", 7", and 9 5/8" casing from the landing collar to surface to 3500 psi for 30 minutes. Displace well to clean seawater above liner top. POOH laying down excess drill pIpe. 11. Pick up DPC perforating guns and perforate approximately 500' of Zone 4 interval as directed. 12. Perform clean out and POOH laying down excess drillpipe. 6 ( ( 13. Run WLEG, Profile Nipples, Packer, Profile Nipple, GLM's, 4-1/2" L80 13Cr tubing, SSSV nipple. See attached completion schematic for details. Space out tailpipe into the 4-1/2" liner top. Reverse circulate clean seawater wI corrosion inhibitor. 14. Drop ball/rod, pump into position to RHC plug, set packer and test the tubing to 3500 psi. Bleed tubing pressure to 1500 psi. Test annulus to 3500 psi for 30 minutes. Bleed off tubing pressure and pressure up annulus to shear the RP valve in the top GLM. Land tubing, back- out landing joint and RILDS. 15. Set TWC and test from below to 2500psi. ND BOPE and Nipple up and test tubing head adaptor and tree to 5000 psi. Pull TWC. 16. Displace annulus with sufficient volume to freeze protect tubing and annulus to approximately 2200' TVD. Allow fluids to V-tube into tubing. Install and test BPV. Secure well. 17. Rig down and move off. Neil Magee BP Alaska Drilling and Wells 564-5119 mageedn@BP.com 7 ( ( W-21 A Well Summary of Drillinq Hazards POST THIS NOTICE IN THE DOGHOUSE Intermediate Section: ~ Window milling and the intermediate section will be drilled with a recommended mud weight of 10.8 ppg to ensure shale stability in the Kingak shale section. Read the Shale Drilling Recommended Practice. ~ Tight hole, hole packing-off, and lost returns have been encountered in previous wells on this pad. Pipe sticking tendency is possible if the Kingak shale gives problems. Back reaming at connections and good hole cleaning practices will contribute to favorable hole conditions. ~ Sag River could be hydrocarbon bearing. ~ There are no close approach wells associated with the directional plan for this well. Production Interval: ~ Losses of up to 7800 bbls has been reported in wells from W-Pad while drilling below the Sag River ~ Mud weight will be maintained in the 8.5-8.7 ppg range to control formation influx. ~ Two fault crossings are planned ~ Have produced water tied into the wellhead annulus as a contingency for lost circulation. HYDROGEN SULFIDE - H2S . This drill-site not designated as an H2S drill site. The highest H2S reading on W-Pad is 11 ppm. Standard Operating Procedures for H2S precautions should be followed at all times. CONSULT THE PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION Version 1.0 Rigsite Hazards and Contingencies TREE: ??" - 5M L-80 WELLHEAD: ??" - 5M W-21 A Proposed Completion Cellar Elevation = ???' Nabors 9ES RKB = ????' 4-1/2" 'X' Landing Nipple with 3.81" seal bore. I 2200' I 133/8",68 #/ft, L-80, BTC I 2710' I 4-1/2" x 1-1/2" Cameo 'MMG' Gas Lift Mandrels with handling pups installed above and below. GAS LIFT MANDRELS ) No fvD . Size. Valve Type J . ¡ - I 7 ¡ 41/2" x 1-1/2" j RP Shear i 6 i41/2ux1-1/2u¡ DV . 5 j41/2Ux1-1/2" i DV 4 ¡41/2ux1-1/2" I " 3 ! 41/2" x 1 u ¡ " 2 14 1/2" x 1" I " 1 ¡ 4 1/2" x 1" I " 4-1/2" 12.6# , 13 Cr-80 New Vam Tubing +1- 9,600' 5 1/2" Liner Top ZXP Liner Top Packer I +/- 9,350' I BAKER 7" x 9-5/8" 'HMC' Hydraulic Liner Hanger 4-1/2" 'X Nipple with 3.81" seal bore. T x 4 1/2" Baker S-3 Production Packer 4-1/2" 'X Nipple with 3.81" seal bore. 4-1/2" 'XN' Nipple 4-1/2" WireLine Entry Guide spaced-out into liner top. 4-1/2" x 7" Flex Lock hanger and tie-back sleeve and ZXP packer 1+/-10,026' I 7" 26#, L-80, BTC-M Casing 4-1/2" 12.6 #Ift, 13 Cr-80 Window Milled from Whipstock Top of Window at +/- 9,500' MD Bridge Plug set at +1- 9,525' MD 9-5/8" TIW HBBP-R Production Packer 3-1/2" 9.2#, L-80, TDS Non IPCTubing 3-1/2" Parker SWS Nipple, 102.75" 3-1/2" Parker SWS Nipple, 102.75" 3-1/2" Parker WLEG 19,862' I 19,850' 1 9-5/8",47 #/ft, L80, BTC 110,121' I Fish: Baker DPC Perf Guns Top of 2 7/8" Tbg 110,329' 1 /" 5 1/2" Baker Packer at 1 0,350' External Casing Packer 10,791' Date 6/22/00 Rev By SRK Comments PRUDHOE BAY UNIT WELL: W-21 A API NO: 50-029-21929-01 Perf intervals from 10,825' - 11,330' 5/30/01 NM Proposed Completion Modified packer size/KOP Shared Services Drilling ,,,I ANNOTAT!ONS ¡C.ORMAT!ON TOP DETA!LS No. rVD MD Annotation No, "rVDPath MD1'a,h Fonnation 2] ! 2 3 4 5 6 7 8 9 10 II 12 13 14 600- TSAD 1'OWC 8467.07 8778.16 8489.46 8629.46 8706.46 9532.87 9745.04 9870.10 T.lC (Base T.lD) LIB T.lA ,-----_....._--""""""", 131.57' MD. 902L88'TVD ,~..............._~, SECTION DETAILS See MD ¡ne Azi TVD 'E/-W DLeg TFace I 2160.09 1881.75 0.00 0.00 2 19 2171.72 I 600 81.00 3 9995.98 72.41 8778.16 2373.34 6.00 81.00 4 10026.00 0.00 0.00 5 10046.00 0.00 0.00 6 10346.24 103.33 8913.06 2390.04 2509.75 12.50 56.54 7 10406.31 103.33 0.00 0.00 8 10556.99 114.00 7.00 90.79 9 10723.47 82.40 ! 24.04 8967,90 2248.85 6.00 85.26 10 II 0.00 0.00 II II 4.00 -0. 12 11423.64 4.00 -6. 13 12394.16 0.00 0.00 14 1216.43 4423.57 4.00 -117.73 ! 5 1171.91 4.00 179,97 !6 727. 86 0.00 17 I 18 19 ! 5095.05 8954.46 I 73.36 6671.7 5 0.00 VSec Target 0.00 3.75 2400-- ; 10046' MD. 8805.32'TVD !0346.24' MD. 8913.06' TVD ; !0406.3!' MD, 8921.99"TVD ; 10556.99. MD. 8944.46'TVD 699.07 W-2IATI "' 0 ~ 11423.64' MD. 9030.85' TVD W..2IA 1'2 W-2!A T3 W-2IA 1'4 W-2IA T5 1800- - CAS!NG DE.rAILS No. TVD MD Name Size õ ~ ~ Q en 41/2" 7.000 4.500 MD. 8962.I5'TVD 1200- TVD TVD depths are plus 84.46' TVD Total Depth ! 800 160(J!1!ìnj INHJRMA liON K"l1i\IICI1 ANNOTATIONS FORMATION TOP DETAILS N;Jm~ rVD MD Annotation No. TVDPath MDPath Formation \\.'.21 21 2 3 4 5 6 7 8 9 10 II 12 13 14 "_---_"",,_----, 8467.07 8778 16 8805.32 8706A6 TJC IBase TJD) FIB TJA 7200 -- CASIN(; DETAILS IVD MD Name Size I SECTION DETAILS 8794A6 10026.1.10 7" 7.1.100 See MD fne Azi TVD DLeg TFace VSec Target 8954A6 15095.1.14 41/2" 4.501.1 9500.00 46.90 36.57 8467.1.17 2160.09 1881.75 0.1.10 1.1.00 0.00 47.10 38.19 8481.1.71 217172 ¡ 890.63 6.1.10 8 LOO 3.75 57.10 72AI 16 2195.23 600 8LOO 21.17.87 4 11.11.126.1.11.1 57.10 72AI 0.00 0.00 5 10046.00 57.10 0.00 6 10346.24 81A5 8913.06 56.54 49 L99 7 10406.31 81A5 103.33 892 L 99 2376.34 2567.54 0.00 000 550.63 8 81 114.00 8944A6 2328.72 2708.50 7.00 90.79 699.07 W-2IATI 9 6.00 10 II 0.00 II 1 9034A6 4.00 W-2IA T2 12 11423.64 94.06 123.60 9030.85 4.00 -6. 13 12394.16 9406 123.60 15 0.00 14 12610.94 90.00 115.93 4.00 -II W-2IA T3 15 12712.83 115.93 8958.08 117191 4515.12 4.00 179.97 281 L03 16 II 9030A3 0.00 3824.68 17 I 9034A6 4.00 W-2IA T4 18 I I 29 64IA8 5617.97 4.00 0.03 19 15095.05 I 173.36 6671.75 000 0.00 W-2IA T5 7800 - 2: c c " ~" 8400- -" E- a "3 E :;; v ~ 9000 End Dir : 13939.42' MD. 9031.29' TVD Start Dir 4.?!lOO': 13730.84' MD. 9030A3.TVD End Dir : 12712.83' MD,8958.08' TVD 12394.16' MD. 8962. I 5'TVD Start Dir 6?11 00' : 9500' MD. 8467.07'TVD 11000 12000 14000 9600 End Dir : I Start Dir 4'?/JOO': ¡ ¡ 131.57' MD, End Dir : 10723A7' MD, 8967.9' TVD Start Dir 6'11100'. 10556.99' MD. 8944.46'TVD Start Dir 7)1100': 10406.31' MD. 892L99'TVD End Dir . 10346.24' MD. 8913.06. TVD 3600 Vertical SeCtion at ! [600Jj/in] ( BP Amoco Planning Report - Geographic ( -..-.-,-. ._--,- ".," .... .,--,_..." .~- ------ _... -_._---- ._-_.-------,-- -..-"'" --_..-- ----.-.----.--- ._-"-""------"---,-_._-~-.----_._.~-,, --"----'- -,------,--,0._------,--------." -~,-,-,-._- _.._~._--_.". '-'---'--'.~.._n__,_,_,~. --- ---._-- ----. -_..- Company: BP Amoco Field: Prudhoe Bay Site: PB W Pad Well: W-21 Wellpath: Plan W-21A ~,-_.- ------, ...- ----.---______n______..-.".------.-------.--,--.-----..-------------.------.-.,. . - .. - - - --- . --- - -. - -. . - -. -- . Date: 5/22/2001 Time: 07:10:22 Co-ordinate(NE) Reference: Well: W-21 , True North Vertical (fVD) Reference: Plan W-21A 84.46 84.5 Section (VS) Reference: User (2160.09N ,1881. 75E,112.53Azi) Plan: W-21A wp14 Page: -.-.".-,,"-----.,- -~ ---'_--'_----------_____.0___.-. ._-- . .---., _. -- - - - . - - --- - -. - - ___~4______- "._n'_- ._...n____._.-.----- .,,-.,.--. ---. -.. -.. - -- - Prudhoe Bay North Slope UNITED STATES Map System:US State Plane Coordinate System 1927 Geo Datum: NAD27 (Clarke 1866) Sys Datum: Mean Sea Level Field: Map Zone: Coordinate System: Geomagnetic Model: Alaska, Zone 4 Well Centre BGGM2000 ! Site: PB W Pad TR-11-12 UNITED STATES: North Slope Site Position: Northing: From: Map Easting: Position Uncertainty: 0.00 ft Ground Level: 0.00 ft 5957194.18 ft 609919.18 ft Latitude: Longitude: North Reference: Grid Convergence: 70 17 31.506 N 149 6 36.343 W True 0.84 deg -"-"-.O_..__n_--.. --- - --'-"'---"--",--,---- -----...--- W-21 W-21 Surface Position: +N/-S 2405.75 ft +E/-W 2165.48 ft Position Uncertainty: 0.00 ft Reference Point: +N/-S 2405.75 ft +E/-W 2165.48 ft Well: Slot Name: 21 Northing: 5959631.13 ft Latitude: 70 17 55.164 N Easting : 612049.07 ft Longitude: 149 5 33.217 W Northing: 5959631.13 ft Latitude: 70 17 55.164 N Easting : 612049.07 ft Longitude: 149 5 33.217 W Measured Depth: 31.46 ft Inclination: 0.00 deg Vertical Depth: 31.46 ft Azimuth: 0.00 deg - .--- Wellpath: Plan W-21A +N/-S ft 2160.09 Drilled From: Tie-on Depth: Above System Datum: Declination: Mag Dip Angle: +E/-W ft 1881.75 W-21 9500.00 ft Mean Sea Level 26.43 deg 80.73 deg Direction deg 112.53 Current Datum: Magnetic Data: Field Strength: Vertical Section: Plan W-21A 84.46 5/21/2001 57456 nT Depth From (TVD) ft 8467.07 Height 84.46 ft Plan: W-21A wp14 Date Composed: Version: Tied-to: 5/21/2001 1 From: Definitive Path Principal: Yes Plan Section Information . . '.,- ,~. ," ~ '-..' ,,",. .""h". ~ ,..-, ,_.'. .,.. ~ -,-~ ".", ..~..~~-"'"..,,~ ..~-,.,..,o_. ;~-'7' '_'h'" ~"""-'~ ."~~. ~ .'-~" - -- .. '.-. -" .m -- "' "," _.....'~" --"'-~'.'''''''''''-'~'''''.''--''''''._'''''''''''~'.- ~"""r-" ".. ".., -,._--,.., ,~._..,._'''.'. ~._.,_.,.. --_. ~.,_._._,,_.~ _.h'._"_'~-;"".".","",---,~>-","'~~----"'''._-''''--- ~_..~-_o._-~-;-----..,--_.._~'-~--'-_.~-~ ,.".~....~~,~- .~"O~'h""" _..~.~.., .. -"~..~..",.._,,,,,,.".,,.,-~...,~ "... MD, InCl Azim TVD' +N/-S +.E/.;W DLS Build Turn tFO ' ..........,',.~.._...._..._-"._~.:~~,._~~,._.~~:.!~,,~-~-~-,!!~.~~.._-~.."-,~!!:~"L_._.__-_.._~_.._"--,--~~~!J.~~_.2.~-~!-~:g~~:~~_øl~~~_._.._-~:~......C-..~..._._---- ... .... .--....-.....-.... 9500.00 46.90 36.57 8467.07 2160.09 1881.75 0.00 0.00 0.00 0.00 9520.00 47.10 38.19 8480.71 2171.71 1890.63 6.00 1.00 8.09 81.00 9995.98 57.10 72.41 8778.16 2373.33 2195.23 6.00 2.10 7.19 81.00 10025.99 57.10 72.41 8794.46 2380.95 2219.25 0.00 0.00 0.00 0.00 10045.99 57.10 72.41 8805.32 2386.02 2235.25 0.00 0.00 0.00 0.00 10346.22 81.45 103.33 8913.06 2390.04 2509.73 12.50 8.11 10.30 56.54 10406.27 81.45 103.33 8921.99 2376.35 2567.51 0.00 0.00 0.00 0.00 10556.98 81.45 114.00 8944.46 2328.72 2708.50 7.00 0.00 7.08 90.78 W-21A T1 10723.47 82.40 124.04 8967.90 2248.85 2852.43 6.00 0.57 6.03 85.26 11131.56 82.40 124.04 9021.88 2022.39 3187.62 0.00 0.00 0.00 0.00 11321.56 90.00 124.04 9034.46 1916.34 3344.59 4.00 4.00 0.00 -0.03 W-21A T2 11423.64 94.06 123.60 9030.85 1859.58 3429.33 4.00 3.98 -0.43 -6.19 12394.16 94.06 123.60 8962.15 1323.86 4235.68 0.00 0.00 0.00 0.00 12610.94 90.00 115.93 8954.46 1216.43 4423.57 4.00 -1.87 -3.54 -117.73 W-21A T3 12712.82 85.92 115.93 8958.08 1171.91 4515.12 4.00 -4.00 0.00 179.97 13730.86 85.92 115.93 9030.43 727.85 5428.34 0.00 0.00 0.00 0.00 13844.12 90.00 113.95 9034.46 680.14 5530.94 4.00 3.60 -1.75 -25.94 W-21A T4 13939.42 93.81 113.95 9031.29 641.47 5617.97 4.00 4.00 0.00 0.00 15095.05 93.81 113.95 8954.46 173.36 6671.75 0.00 0.00 0.00 0.00 W-21 A T5 -"""--'-'.-".""_"_0"-.__-' --_.._-_..._--_..-.~ , -. -- ,....._" -_...,,_._.<0_-'- ------ ._..._,~~.__..-. -, ---,..-.- --_....~~----_._-_._- '_O_-'---"--'''--~-'''-'---''-~---'~''_.~-'"'''~-----~----- -~- -.- -----.._.~- . --.- (' BP Amoco Planning Report - Geographic ~¡ r ._-._~, - -"----'--~--""'----'--------" -"- - -,--' -- ---~-"..- ~- -,.-.-.-.-- . -... -- -- --- - --, '--~-'----~- --~ - -.- ,.~ ,- --".- u -~ ,"'-"--' .._------,- .. --,~". -"'''----"- -,- Company: BP Amoco Date: 5/22/2001 Time: 07:10:22 Field: Prudhoe Bay C(H)rdinate(NE) Reference: Well: W-21 , True North I Site: PB W Pad Vertical (fVD) Reference: Plan W-21A 84.46 84.5 Well: W-21 Section (VS) Reference: User (2160.09N,1881.75E,112.53Azi) Wellpath: Plan W-21A Plan: W-21A wp14 ----- -.-..._--,-,.~-----~-- ---- ----"-------'------'-------'------"--------'--'"----"-------.-'-'.'--"--'-''---- -_.-- -,,-- -----._---_.'-"'-'-'- - _'~-_',_._-------, ,_.. .-- ~- -,---- --.. Page: 2 Section 1: Start -, -.. - -- ---- ------,.._,--------~_.... ---_.-.- - -'-,-~-.-._- .-- .'_.-,--'.-'-,""--'-"-----'~ ----.-----" .-'----- ----...----------.-.- ----- ~------,,--,-.-.-.- -_._-- ------ --------.------ --.-- ---- -'.----- --~--_._._._-~--_._-------~- MD IDcI Azim TVD +N/-S +E/-W VS DLS Build Turn TFO ft deg deg ft ft ft ft deg/1000 deg/1000 deg/10OO deg , -_.....- ,,--- - -_u_-.------.---..- .,_.____n_._- - --..--.- -._- - ----,.-. ..---... _.,,_.._o.~ ----.,. ..-.- ---- __.._..0_. --.-. - -. -.._- -..,,---..... -. -.--..---------- - _.._._._------~-_..._----_._._- -- - -,'--._'_._n.- .-.-- -.- 9500.00 46.90 36.57 8467.07 2160.09 1881.75 0.00 0.00 0.00 0.00 0.00 9520.00 47.10 38.19 8480.71 2171.71 1890.63 3.75 6.01 1.00 8.10 80.97 Section 2: Start . ---- -.-'-' _. -..,-.-- _n_.- --. - "'-'-'-.,. '.---.-.--- .'-'..'-- '-""-.'.'..--"'---'- - .._..- .~--_.~- "'-'---'..-.... ..- _. .-- -'- - - .. - .- ....._~.' - u"--- - u- ~_.....- - _. -...-.. - -. .-.-. - -- .- I MD Incl Azim TVD +N/-S +E/-W VS DLS Build Turn TFO I ft deg deg ft ft ft ft deg/100ft deg/100ft deg/1000 deg i ----_..------ ..-_.-._---_.._.~.__.__.._-_.__._--,,-- - '--'--"----'_'____m_.. ..--.-.-., ..- . 9550.00 47.41 40.61 8501.07 2188.73 1904.61 10.14 6.00 1.02 8.05 81.00 9600.00 48.03 44.57 8534.72 2215.95 1929.64 22.84 6.00 1.25 7.93 79.36 9650.00 48.79 48.45 8567.92 2241.67 1956.77 38.04 6.00 1.51 7.76 76.69 9700.00 49.67 52.24 8600.58 2265.82 1985.92 55.71 6.00 1.77 7.57 74.11 9750.00 50.67 55.92 8632.61 2288.33 2017.01 75.81 6.00 2.01 7.36 71.64 9800.00 51.79 59.49 8663.92 2309.14 2049.96 98.27 6.00 2.23 7.14 69.28 9850.00 53.01 62.95 8694.43 2328.20 2084.68 123.04 6.00 2.44 6.92 67.04 9900.00 54.33 66.30 8724.06 2345.45 2121.06 150.04 6.00 2.64 6.69 64.93 9950.00 55.74 69.53 8752.72 2360.84 2159.03 179.21 6.00 2.82 6.47 62.95 9995.98 57.10 72.41 8778.16 2373.33 2195.23 207.87 6.00 2.96 6.26 61.19 Section 3: Start - .., '.,,-,._....-.~ ...- y .........~..~- -- .. ."..,"'_."-'-- -... .-.- . ,,-- "...- .0.....0._'., "--'- ~-_u._---. o..._..-.~" --_...^.'~ . - - '-""" ~._._-..- ,- -. ~...' ---.-- - ---~----,._..~._--~"-- . --~.._~.._~,.~..,~,,, ."_"".n"'_' - J\1D Incl Azim TVD +N/-S +E/-W VS DLS Build Turn TFO ft deg deg ft ft ft ft deg/100ft deg/100ft deg/10OO deg ----.-. ~,,"'.''''''''-''''-''''.'''''-'''.'~'''' _..-',~... ... ..~. -. '~'-'-'''''-''''-''~'~-O'_..'_O''.'- .. .-,.....--. ,,,,,,-'.,,,--,,,,,"-"..w_-. "-,._._".~..~,...;......",".~,_..~._~o,.._- ,~"'~'.o_._"..__.__._,,...-_.._..._,.,..,,_....~.,...,-,_........."._.~~._.._......,-,- .., '''-'.'''''... '" ... ..-..,......_,0- ..',u_-" ... ... --.. ..." ,~.._-...,.. . 0.. -,......._,,,.....,,.~-"o,,.._._. .- _.-.-. . 10000.00 57.10 72.41 8780.34 2374.35 2198.45 210.45 0.00 0.00 0.00 0.00 10025.99 57.10 72.41 8794.46 2380.95 2219.25 227.14 0.00 0.00 0.00 0.00 Section 4: Start .. ._",,,-. ".,.,,,, "~"r--~' ". ~ .. ~.~_. . ~~".'''' .." '0'." "...-~,.'~-' ""-,,'" ""~."'"'''''r-'',"''''.''' ,~,,~._.,..."," ""0""''''-'' .~,,,..,.,._..... .~..,~~,,-_., ".'0 - -.... ~." .,.-. .. --. "" ..,- .., ,., .- . , """""'-"1' --,- .." ~ ~ ". . "-,,,. '"' . MD IDcI Azim TVD +N/"S . +E/. W VS DLS Build Turn TFO --_.._~. . ... .... ".~.~~_....- ... _. ~:~u._....._.~-------_.._._--_._~----_...._._.._~_.._--_.___u.._f~___._--~:~~~?_~.~:9.!~~?~-~:~~.?~_.- - ~~_9.._._....u_.. .-......... 10045.99 57.10 72.41 8805.32 2386.02 2235.25 239.97 0.00 0.00 0.00 0.00 Section 5: Start . -~ --,,'~ ~" . '.-. ......" .~....... -... -.. " -.. ..,..- ... ,-'0'. ,~"",.-,, . c ...'.- ~_. .-"'-'" ._~..." .'- - . "..~ ".~.., ,'" ~.--. '-.-,,'" .... .~.., ,.". ...~, -,-"" """':1'''1''-' ~_.- ~''''''''.~''-'"7'",.",-,,,,,,,-,~,,~.,,"-,..~.,.. - ",,,,,,,,,,,"-'''', ,,_..-."~ '~"'~'"''''''..h-'' -"...~,-_.. -,,"'''-~--'.'_._..'''''- '."""'''~-'.'- .~, ..- -." ."" -. "..:..,._"..._.~.,_... ._,._-~._.- ~"'~---n-'''-->-'' '-.----'-- "'-~"'-"' TVD ft 0".'''''_--''''._-.'-.0 ,,-..- _.,,- .. 8807.49 8820.64 8833.12 8844.88 8855.89 8866.12 8875.54 8884.12 8891.84 8898.66 8904.58 8909.57 8913.06 +N/';S +E/';W VS DLS Build Turn TFO ft ft ft deg/1000 degl1 00ft .Øegl1 000 dØg ..,o_.",~,_.- -,,_.,-,.,.,-~.......," '''"'~~''-'''''''''''''''~''''-'-'.'''''-''''.~' ...._.".~.."._.._. w....- -'.._,_. ...-., "'"--,",_":..,..~",,-,.._~_.:..,,..._-, -''''''-'-''.... ...'- ,. ......,-,-~..,,-,,- .'-'. .._...-~ -~....,-.."- ".. ..."o._~ ""'.-'"'-~."" 2387.03 2238.47 242.56 12.50 6.92 12.38 56.54 2392.73 2258.95 259.29 12.50 7.09 12.11 56.27 2397.45 2280.09 277.01 12.50 7.36 11.66 54.68 2401.18 2301.83 295.66 12.50 7.60 11.25 53.22 2403.90 2324.10 315.19 12.50 7.82 10.87 51.90 2405.61 2346.84 335.55 12.50 8.01 10.52 50.70 2406.30 2369.99 356.66 12.50 8.18 10.21 49.63 2405.97 2393.46 378.47 12.50 8.33 9.93 48.67 2404.62 2417.20 400.92 12.50 8.46 9.68 47.81 2402.25 2441.13 423.93 12.50 8.57 9.46 47.07 2398.88 2465.18 447.44 12.50 8.66 9.28 46.42 2394.50 2489.28 471.37 12.50 8.74 9.12 45.87 2390.04 2509.73 491.97 12.50 8.83 8.98 45.25 _. ..,,,,,,.,,..-.,,- .'.'0'" _.,~'. ~. . MD Incl Azbri . ft dég deg .o_---_._-_w_-~.- -----~.' .-.-.'-. .,----.,.--.-.--...--,.. --~-_........__... 10050.00 57.38 72.91 10075.00 59.15 75.93 10100.00 60.99 78.85 10125.00 62.89 81.66 10150.00 64.84 84.38 10175.00 66.84 87.01 10200.00 68.89 89.56 10225.00 70.97 92.04 10250.00 73.09 94.46 10275.00 75.23 96.83 10300.00 77.39 99.15 10325.00 79.58 101.43 10346.22 81.45 103.33 . .- -"--- ---,,-~....._~ -" _. ._._"_.".,._~.._,,.__._.__._-,- -.. --...- .... .-.._--.-....- -. ""d"_'_..-."-'-.- . . ."~'-"-'--"""""____m__"._...-"..,,._.,,-....._" -- -- . . -'''-'-'''~'._...._... - ---.-"'-.. u._n.._.., "..._, Section 6: Start [;;~~7-:~~~;~=~~~I~--2~£~~~~~~~~t~1i~;~~;-~~-~ Section 7: Start .."~'''':'''''_..'''''''-'''''' --"~""'''ø'''--''''~~-"''-~'--"'-''''--'~~'''''-'~-''''-''':-7'-''-'---~-'_O''..-. ----:-..-.-....,~-~-_._~-,._~..._...,.......__.::-.~._~.,..._,-",.__.- _."~_. -'''..~~-"'-"'-_.~.~- ~,-~--~'-- ---_._.--._.__.._._----..~...__._-" .--.,-;-.-..----....-.-"..--,.. ~.-.,._., ..... .~,..,~,.,,",..~,- "--''''.. - .~. ~"'".' ~".",..._. -_. ".,c""~ MD loci Azim TVD +N/-S +El-: W VS DLS Build Turn TFO ft deg deg ft ft ft ft deg/100ftdeg/100ftdegI10OO deg ....,..._---._.~..~."...,,_... '"'.~'-'--"_.'-~'---~.'_.'-""-""----,._'__"r'_'_--'-- ,~.~,-_..........__._,,;-~._.._--,~.'..~".h'_'_._-,----.._.,-'-.- ".,-.-..---... --.-,-..."'----.~.''''..--,--....- ,....._~.... "'''-'-"."''-'~'-~'-'-'-''''. ~._,._....,._..- ....., U_",On- .. ... --","-_....~----". ~._...~..,.__._--_.....~..._- "" --,._, ----.. '-,,-_.. ~_.. ....---,.-..- ...,.. 10450.00 81.42 106.43 8928.50 2365.25 2609.30 593.44 7.00 -0.07 7.08 90.78 10500.00 81.42 109.97 8935.97 2349.81 2656.26 642.73 7.00 -0.01 7.08 90.32 10550.00 81.45 113.50 8943.42 2331.51 2702.18 692.16 7.00 0.06 7.08 89.79 10556.98 81.45 114.00 8944.46 2328.72 2708.50 699.07 7.02 0.05 7.10 89.59 ~-- -.-,.--,...--. ,._,-_..... --.'.-'''-,,-,,--,-----,-,-,- .-----..-------.-.--------.---.....----------.-.--,-.-. --..--.-.-.- - ,-----~._- - " -- --~~~---'-'---n-._n.- ,_u".-.- - --"."-"'...-.,,--. ..-..- . - . - "-----'.-......-..-. .. ( BP Amoco Planning Report - Geographic ( ,- -.- .- ,_.-- ~--,,"...._.._-,-_.-- --- ---- --"-'~-"--~--_._--"'~-"--"- - - .---.---' -. ---_. -.------_. , __"__.n_. ---------_.-~-,~---_..,_...__._--~- -. '-'----""~'-~---"--'--"---"-'--- - Company: BP Amoco Date: 5/22/2001 Time: 07:10:22 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: W-21 , True North Site: PB W Pad Vertical (TVD) Reference: Plan W-21A 84.4684.5 Well: W-21 Section (VS) Reference: User (2160.09N,1881.75E,112.53Azi) Well path: Plan W-21A Plan: W-21A wp14 ~---- ,-,_.,,,.."-~.._,,,._---,-~ ---'--'---'-"~--_._-----'--'-----' ---...--------.------.-.-- ---"-'"--'------'_-___.0______----.--"-----.-'------..-...---...------., '----- _.__..~-_.- -~..._- . -.-,.... ------------'-~.- --- - -- ". - ..- -. - --.."...- - Page: 3 Section 8: Start -. -_. ....---..------ .- ---- - - _.n - h'_.. ,,-,.,- .---._. .~- --."..'-' - _n --- n__, -,-- - - - . .- ---. _..- --~_.- .--. ~_.- .--.-- .-- ,- ..-. .- _.~ --.-'- - _.. .- -- - -,,", -- ~_. ...-... -- --. . .u- --.. .-- -- . MD Incl Azim TVD +N/-S +E/-W VS DLS Build Turn TFO ft deg deg ft ft ft ft deg/10OO deg/100ft deg/10OO deg --- -.- - - ---_.,,-_._---~..._--,---_.- - - ..__n_____- .____.n_.___..-..---.-~.-----.-..'--.'- - --..- .,,-..---.-,--. ----' --.--. __--__n- -'-- ---___.._n- .-<---.-., --~_. -_..._--~._-_. ,,- _. --- ----.------.--. - - -- ------- 10600.00 81.67 116.60 8950.77 2310.54 2746.97 741.57 6.00 0.52 6.04 85.26 10650.00 81.95 119.62 8957.90 2287.22 2790.62 790.82 6.00 0.56 6.04 84.88 : 10700.00 82.25 122.63 8964.77 2261.62 2833.01 839.78 6.00 0.60 6.03 84.45 10723.47 82.40 124.04 8967.90 2248.85 2852.43 862.62 5.98 0.63 6.00 84.05 Section 9: Start -_..~.._-.'-------'" '-"----" --'-"'-'-----"- .------.. ._.~--.-~-_._.._~- ~._..._------ --"'-"-'-'- --.,.--- ----'--------~- -.-. - -- ....-.--- -."'-'-'--'----..----.-...---,-.- .------ ,_. -.-.- ,...,- .-- ...-- ... ..---..-.. ..---- - MD loci Azim TVD +N/-S +E/-W VS DLS Build Turn TFO ft deg deg ft ft ft ft deg/1000 deg/100ft deg/10OO deg . -- ,. .-.---,--. ---- ---.".-. '"--- -.. .._._-,~_..... ...~..- --.----....---. ---.....-. ._-.. ,-.-_.. .---'---"--"",.'._". <'-..'-'--"--'--" - ".-....------- --""-"-'-.<-' '-.-- ..-. . -.--_.-_n. -" .--. 10800.00 82.40 124.04 8978.02 2206.39 2915.29 936.95 0.00 0.00 0.00 0.00 10900.00 82.40 124.04 8991.25 2150.90 2997.43 1034.07 0.00 0.00 0.00 0.00 11000.00 82.40 124.04 9004.47 2095.42 3079.56 1131.20 0.00 0.00 0.00 0.00 11100.00 82.40 124.04 9017.70 2039.93 3161.70 1228.33 0.00 0.00 0.00 0.00 11131.56 82.40 124.04 9021.88 2022.39 3187.62 1258.99 0.00 0.00 0.00 0.00 Section 10 : Start .,-".-. '---".... '-'-'-' ...-.-'. - .- . MD ft 11200.00 11300.00 11321.56 Incl deg 85.14 89.14 90.00 Ázim deg --",,,,,^",,---,......--_. ~ . 124.04 124.04 124.04 TVD ft 9029.31 9034.30 9034.46 +N/-S ft . ... . ._'_"~...._..,__...n...- 1984.31 1928.42 1916.34 +E/-W ft . ..._'''-''''-_..".._,,--,,_..._-~... 3243.99 3326.74 3344.59 VS ft .. .... . < .. 1325.65 1423.50 1444.61 DLS Build Turn deg/100ft deg/100ft deg/10OO ."- .-. ----"~"'"'---""'- -..- ...~_.."."-,,.__. .._.,,,....,,_.._..,,..~-- .-. 4.00 4.00 0.00 4.00 4.00 0.00 4.00 4.00 0.02 TFO deg -0.03 -0.03 0.23 Section 11 : Start _..-"-ïVÏI)-..'.-"-r~i.'-"._--...--A~ï~-._.-- ft deg deg '-,.- ''''~'- .....- ""'.'''''''''''''.',,,. . . ~_.. '_','n_"..,~..._-...'.. ."..~--~.". '.'.~---"-"~'""-'''--''..- 11400.00 93.12 123.70 11423.64 94.06 123.60 . .~ .."""""""-"''''-''"'',-''-'''''''''~'-''~~---''"-~-'~'''''''-'''''-..~..~. ~.'--"'-~''''''",. '~".~'_n_.""'_'"",,-~,.""-"---""I"'" ,,'--'~._"'_._-_......n'~'_''''''''''''_..-:--'''''I'..,'---''''''~~-'_'~''''-''--'.'''._"'~ ..,..,.....-.-..-, '" " -.,....". ,,~-.~_.~ ""'''.~.~~...,...-. ..-....,~_....."' ".~... _._.~,....,..,-"." ,."~.". .,~ TVD . +N/~S +E/-W VS D.LS Build Turn TFO ft ft ft ft degl100ft . degl1 OOft deg/1000 deg .. ._'''~- ......."..,,~... ".~.".~~.~...._, '''''''~'~_.''.'-'''''''''''''.'' ... ""..., ,-_.. ."..~"'.,.- ... .,..._n'.,_"_,,,,,,,.,-, -.... ...,~" "-""'<"~'.-"'-""- .. .~_.~... -, --""."-'''''~'' h"_'_'"'' <.." ,.~...." .'."........... .-..".-"',.'.' -"-..." ".. ~.".._.- -.. - .-.." ~.~~..._.. ,.......-.... 9032.33 1872.65 3409.69 1521.48 4.00 3.98 -0.43 -6.19 9030.85 1859.58 3429.33 1544.63 4.00 3.98 -0.43 -6.13 ...-. .--<, ".--....-.-,-.-..-"..-.-. - - --"~--- '-'-"---"''''''-'- -'. ''''''~----'-''~'--'''-''-'-'''-''''--'- --- - "-'----"'-'0"'-_---"---"-"'-' ---.-.,,-_u_.---..-..--...".- .._,--,_..._----- "'"-,-...--.- . .-. -,.._,_.."-<_.__.~_._.._-_..._-_._.- - Section 12: Start .. -~_.. ... ... ._"". -"~""."~'.'" -..-.-- '-..,'. -",~,..,-,,~,. ..,~.... .-_..<""_-~ -.,. . ,-""_.,.~.,,, .,.._"......~., "'--"'ë."_..~,-,,..,.,.. ..,._".._.~,..",' .""~'.- ." - . "~'I"'~O"" ~ ~~.~ -...,., -'-~':' ,,~'" -"7"-~"~'~.-"""~"~''7''''.-',---~' ,,,,~"."'~'-'..'''''''._,-_.'..~ '.~""'-"""'~~".'."-"-~"'~-"," .-'.~"--'~.- ~.....~.. . _.._~ ,-.."......--.,. . - ...,~"..- .,"" -.._".,.-..,~. -',,'- .. -.,,~. MD Incl :Ai:im TVD +N/-S +E/-W VS DLS Build Turn TFO ft deg dEl9 ft ft ft ft degI10Qft.. deg/100ft .dëg/toOft deg , ' ... ...- .. ."......~.',..__._..._. ..", .. ,._,~"-.---..~.,,... '-.. '''_.''0'. < ..<..-..."..-'.., .-.-.-.... .,"-.~.'-._""'" ._--_.-, ........,....-.- "'_.".'-'."-"'_.~"""-'--""--'''.._''''..-..._. -'--~"._''''''-'''~''-''''--'' .-"'''......"...-..- ...-.- ,,"-.....--.-......-'.--....,.. -".,'''-'''''.'- ..,,~..-»_.,~ -'" ....".-.... .. ".".""""'.""".""'-'''-..,.,---."-".-.-..,,...--'........0,._._....-.'"...., '.-'''.'",'-...,.-.-... -. 11500.00 94.06 123.60 9025.44 1817.43 3492.77 1619.38 0.00 0.00 0.00 0.00 11600.00 94.06 123.60 9018.36 1762.23 3575.86 1717.28 0.00 0.00 0.00 0.00 11700.00 94.06 123.60 9011.28 1707.03 3658.94 1815.17 0.00 0.00 0.00 0.00 11800.00 94.06 123.60 9004.20 1651.83 3742.02 1913.06 0.00 0.00 0.00 0.00 11900.00 94.06 123.60 8997.12 1596.63 3825.10 2010.95 0.00 0.00 0.00 0.00 12000.00 94.06 123.60 8990.04 1541.43 3908.19 2108.84 0.00 0.00 0.00 0.00 12100.00 94.06 123.60 8982.96 1486.23 3991.27 2206.73 0.00 0.00 0.00 0.00 12200.00 94.06 123.60 8975.88 1431.03 4074.35 2304.63 0.00 0.00 0.00 0.00 12300.00 94.06 123.60 8968.80 1375.83 4157.44 2402.52 0.00 0.00 0.00 0.00 12394.16 94.06 123.60 8962.15 1323.86 4235.68 2494.70 0.00 0.00 0.00 0.00 .---.......-"... _..~ . ...-.----_u---.. "...--.-..'-.-""-"." .. _._,,_._.."~''''h... - ._..........._-_....._-~" -~"...~..._.._.~.. ".~".._.._.... ...-. .... -. .... ..---.... .,,_._~-_.._-_....- u_n .. .... .._,---"'....~- --..- -. -.....---.-.--....,,-,- Section 13 : Start ..... . -'""'."'._~";"'J",.,.,""..." .""''1'"'.. ,....._,-,..-". .'~'-."""-'''''''.'''''_.'''''.''~-''''_-n"''_''-''''-'' ...... . _.-"_.,,.~,.... ""~'.~'.~.~""'~'~-"".T'--r".'~--,'''-','~'-"~.'''''.''''.''""'"""'-...'-".'--.""""-."""---.-""":"--''''--'.--''.0_'..._~....,_. --...- -;--' ~,._...-.'..._. ""''''.' ,",_.~"""",-"""._-.,, '"-.... ...,,~..~ . ., ._,.. ~...". - ,-.- ..- -- .,.. .. ..~". ,_.-.,....~ ..,...,_....~."" ., ,~~_.--.....-,,_.,... ... MD lncl Azim TVD +N/-S +E/-W. VS DLS Build Tut~ TFO ...... ._._._.~!__...- --. .. deg -.. ._..c~J.~..._._,._.~ _."'_.._.".~.l'._.._....J- .._..__._.,..~-_._.._~._._._.__:_._-~-_._....".__......_!t .. ---.- -. ... ?:~!.~-~~~-~_:~~.190f!~~~~{1~~_.__---~~~"..".'h_.._'-_..----."---.----..,....- 12400.00 93.95 123.39 8961.74 1320.64 4240.54 2500.42 4.00 -1.86 ~3.55 -117.73 12500.00 92.08 119.85 8956.48 1268.30 4325.56 2599.01 4.00 -1.87 -3.54 -117.74 12600.00 90.21 116.32 8954.48 1221.24 4413.75 2698.50 4.00 -1.88 -3.53 -117.93 12610.94 90.00 115.93 8954.46 1216.43 4423.57 2709.41 4.01 -1.89 -3.54 -118.05 Section 14 : Start ~;~~~i=-i:~~~-:;i~=:~;2¡~;~;;;ir--:~;~~t2~~~f~ji~:;~1f-~:~~==~-~::-: (, BP Amoco Planning Report - Geographic I' ( ~.,-_._._,_..._-- .._. --.------------...------------- ._-- - - .,---..-- Company: BP Amoco Date: 5/22/2001 Time: 07:10:22 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: W-21 , True North , Site: PB W Pad Vertical (TVD) Reference: Plan W-21 A 84.4684.5 Well: W-21 Section (VS) Reference: User (2160.09N,1881.75E,112.53Azi) ~._~~I~~~.~~_:- -~~~~.:-_~~~ ._--_._--_.._.__._-_.._-------_._---______n____..!!a_~:-----.-------- ._------_._~~~-~.~-~~~. ---. .--..------------- --- - -. -- -- m__.. Page: 4 Section 15: Start -.- ." --,--- '_--'---_.,-,--,- "'----' .. -- .- "'. ---"",- --,- ----- '----" ""-._-,---~-" -_... --.. --- ---- -,- -- - - -- _..0_" ,".,- -.----- '~-'--- -- ~ -..,-'.. -.,-- ,,-- - .-,'-' -'- -.-- --_u -",--~ .----.. --". - -'-"'''-'~. MD Incl Azim TVD +N/-S +E/-W VS DLS Build Turn TFO ft deg deg ft ft ft ft deg/1000 deg/1000 deg/1000 deg r-__n ---.""- .".---. "_. --.--.-.. -_.._--,,---._--._- -.------ -,,---- - -.- .._--.--- .-------. ._-----_._----""- .------..----. --~_._._-- ..- . - - -------~~-'- -- --~--- ,- ".. ". -~ ----.,..-- -... ~ .- .--.. - .- ~_._._..--.- -- . ~.- -. -, -...- - --..- I 12800.00 85.92 115.93 8964.28 1133.89 4593.32 2897.84 0.00 0.00 0.00 0.00 I 12900.00 85.92 115.93 8971.40 1090.27 4683.03 2997.41 0.00 0.00 0.00 0.00 I 13000.00 85.92 115.93 8978.51 1046.65 4772.73 3096.98 0.00 0.00 0.00 0.00 13100.00 85.92 115.93 8985.63 1003.04 4862.44 3196.55 0.00 0.00 0.00 0.00 13200.00 85.92 115.93 8992.74 959.42 4952.14 3296.12 0.00 0.00 0.00 0.00 13300.00 85.92 115.93 8999.86 915.80 5041.85 3395.69 0.00 0.00 0.00 0.00 13400.00 85.92 115.93 9006.97 872.19 5131.55 3495.26 0.00 0.00 0.00 0.00 13500.00 85.92 115.93 9014.09 828.57 5221.26 3594.83 0.00 0.00 0.00 0.00 13600.00 85.92 115.93 9021.20 784.95 5310.96 3694.40 0.00 0.00 0.00 0.00 13700.00 85.92 115.93 9028.32 741.34 5400.67 3793.97 0.00 0.00 0.00 0.00 13730.86 85.92 115.93 9030.43 727.85 5428.34 3824.70 0.00 0.00 0.00 0.00 . --.-._-- -- -.--. Section 16 : Start MD Incl Azim TVD +N/-S +E/-W VS DLS Build Turn TFO ft deg deg ft ft ft ft deg/100ft deg 13800.00 88.41 114.72 9033.85 698.31 5490.75 3893.67 4.00 3.60 -1.75 -25.94 13844.12 90.00 113.95 9034.46 680.14 5530.94 3937.75 4.01 3.61 -1.75 -25.82 Section 17: Start ..- -..,.,.-. .._~,-..~.,_..., ~" -"~----'-..".'.'-'-'--'" .~...- ..~-.. ._...".__........--,-...._...-..~,...... ..-- ,,_.., .-. ~-.-._.,......-... -". ''''._''-'--'~''':7'".''-'-~''''-r-~.'''''-~'''''--'''''~-'. ..-".-... -.. ,~..-. ....- . ~. n~""' '"''''-'-'-'"'.- - - -~-~..__..~-""..-...~_. -. - -''''''''~''~'''-''',"""."--~''r'' --...,.....,-,,~_..._.- ."--_.""-^"_.._.._""~.._,,,_..,,..,_......- - MD lncl Azim TVD +N/-S +E/-W VS DLS Build Turn TFO ft deg deg ft ft ft ft deg/100ft deg/1 00ftdeg/1 000 deg .-.., ,,-,_............. .,-"-"""".",,,,,,.,,,~,,,w,-, . ..-,."...".......... ,,""~,,-_. .. ... -.'...-. ""."--''''''.....~_._' "-_.._...,.~''',, ...'~.~.._.. ''''W_'w''"'.,, ..-. ..._-.. ~._. -,,_.... -"~"-""'.."'--""'''-'-'~''-'''.'''- ....~. 13900.00 92.24 113.95 9033.37 657.46 5582.00 3993.60 4.00 4.00 0.00 0.00 13939.42 93.81 113.95 9031.29 641.47 5617.97 4032.96 3.99 3.99 0.00 0.00 Section 18: Start ,., ,.. -_.....~._..~........,._,_.,,.-_...,,-,.,,.. "'~'~~"'.""'--_."'"''''''-'''~''-'....".......,''~'' -'~-"",'''''~'' ._~. , MD lncl Azim ft deg deg -," ........ _...."'.~... --...--. .~. ~_._.._.~._._._-_..._._--_.~.._._..".~.._'''~_.k' 14000.00 93.81 113.95 14100.00 93.81 113.95 14200.00 93.81 113.95 14300.00 93.81 113.95 14400.00 93.81 113.95 14500.00 93.81 113.95 14600.00 93.81 113.95 14700.00 93.81 113.95 14800.00 93.81 113.95 14900.00 93.81 113.95 15000.00 93.81 113.95 15095.05 93.81 113.95 . ,.....".."...~"...,"....w.."....,.~..~~,-,"-" -"...,"",-:- '_'n"_,,"~'c'n",,""'~,'~ .. .. " ,.-"-_. - ......,,-....-.. .~.,.,--,".~,,~ """.,.. .. TVD +N/-S +E/- W VS ft ft ft ft ""..~w... _.. ~"...._..,,~......"'--'---"'_._._-_..._.._... -------..._u..-'.--..--..".--..... .."..._-~........ .~..:".~."-_..-..,,-- 9027.26 616.93 5673.21 4093.38 9020.62 576.43 5764.40 4193.13 9013.97 535.92 5855.59 4292.88 9007.33 495.42 5946.78 4392.63 9000.69 454.92 6037.96 4492.38 8994.04 414.41 6129.15 4592.12 8987.40 373.91 6220.34 4691.87 8980.75 333.40 6311.53 4791.62 8974.11 292.90 6402.72 4891.37 8967.46 252.39 6493.90 4991.12 8960.82 211.89 6585.09 5090.86 8954.46 173.36 6671.75 5185.67 ,. ~,,' """-"""','-- .~,., ""~.,,.~"~,._.....,," ,. ,_.. "'" . -,,,-..,",,.... "_""_'."',..,,,.,.,,,~ -. ""~,-"'"' "'-'- ,,_....~... ..",-- '~-,"""'."- ". DLS Build Turn . __~:~'..1?-_?~_~=~!~~o.~_.~e~1 ~~o.~._-- 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TFO deg . --_.._.~.._-~..._._.,,-_.. .... .... ....-.... -~..,.. 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Survey .~'~~_..,_.~...~~,.. ....,..~.'._.,~ --:.'-"-,",",,_._.._,,--~.~...-.~_..,,---~.,.,,~...... ~._.,.. ._~.-.~~,,,-~.,,~.,~.~.....,,_..._.." '~_""""""'_._~",,-..:"~" ....., ,-",~"".,~,.,.~~,..,.,;",p_'''~''m~..,._,w",...., ~...,~,~.--:-._..- ,....~~ .-'."-'-':"."-'''-''.._'~'---~''":'.:---'- ,- "" ~~'''.'-:--...~~.._..~-_.~. .,., ~-"."-"""~'~-".-'. _._._..~_.,"..""._~~_. _."".""'"'~"'--~'''''_'_--:''',","-no>~ ~:-....,_.'" M.D Incl . Azim ft ,G!eg . . deg ,-",-,--~-,~,-"-"~. .w' ~-~.,_._.---.,. _'-"R_~_" ,"..'-'.'''--'''-'-~'''''''"-'----' 9500.00 46.90 36.57 9520.00 47.10 38.19 9550.00 47.41 40.61 9600.00 48.03 44.57 9650.00 48.79 48.45 Map Map '-:::-~.Latitud(!--,...> <--Lo~gitu4e . :--> TVD +Nl:;S +El~.w Northi~g F.)åstjng. DegMin . See Deg MinSec ft ft. ft. ft . it ... ...~,. ~'._-- -.---- -'_'''_''N--''''_--'.'-'--''---''''._~'-''---''-~~ ~..._.-.-....--.~.-~---~_._-- ....-..- _"M__'.- .~,~-'"...__.._-_.._,.. ."_~~"'''_''--'~''_'-'''~._''.'--_'_'-'-'''''-.'-'._-----'--.......--" -".--.,-.. -~.""'~"""_' _N ,...- .-~"- 8467.07 2160.09 1881.75 5961818.85 613898.24 70 18 16.406 N 149 4 38.346 W 8480.71 2171.71 1890.63 5961830.60 613906.95 70 18 16.520 N 149 4 38.087 W 8501.07 2188.73 1904.61 5961847.83 613920.67 70 18 16.687 N 149 4 37.679 W 8534.72 2215.95 1929.64 5961875.41 613945.29 70 18 16.955 N 149 4 36.949 W 8567.92 2241.67 1956.77 5961901.53 613972.03 70 18 17.208 N 149 4 36.158 W 9700.00 49.67 9750.00 50.67 9800.00 51.79 9850.00 53.01 9900.00 54.33 52.24 8600.58 2265.82 1985.92 5961926.11 614000.81 55.92 8632.61 2288.33 2017.01 5961949.08 614031.56 59.49 8663.92 2309.14 2049.96 5961970.38 614064.20 62.95 8694.43 2328.20 2084.68 5961989.95 614098.62 66.30 8724.06 2345.45 2121.06 5962007.74 614134.75 70 18 17.445 N 149 4 35.307 W 70 18 17.667 N 149 4 34.401 W 70 18 17.871 N 149 4 33.440 W 70 18 18.059 N 149 4 32.427 W 70 18 18.228 N 149 4 31.366 W 9950.00 9995.98 10000.00 10025.99 55.74 57.10 57.10 57.10 69.53 8752.72 2360.84 2159.03 5962023.70 614172.47 70 18 18.380 N 149 4 30.259 W 72.41 8778.16 2373.33 2195.23 5962036.72 614208.48 70 18 18.502 N 149 4 29.203 W 72.41 8780.34 2374.35 2198.45 5962037.79 614211.68 70 18 18.512 N 149 4 29.109 W 72.41 8794.46 2380.95 2219.25 5962044.70 614232.38 70 18 18.577 N 149 4 28.503 W .~_._--_._-_.__._._---"._--- --.-..-----.- -..-.---- ._---_.~._- ---.. '-"---'-'---'_.'-----_._"~--~-_-"_-M"-"'_,_-_,,_-,__,-,.._---~_.--._~" _...._~. --..." .... .._--_..__.,,-~_.._----..._,_._------~._...-.-_.,.-,_....._.-n- '-~.'.R'_. .-.. -.--. '-'''-'~-''-'.-'--'''''''''-~'-'---~ ...--- r ..._--- --. ..-.. - -.- -- --..-.,--...--- .--..- --~-- ..-. -----'-"----'- -..., - -~ ,-"- --,-'.__. --,- ..---.-,-----.-- , Company: BP Amoco Field: Prudhoe Bay Site: PB W Pad Well: W-21 Wellpath: Plan W-21A ..... .--..-..----.-.-.-."-,,..- .~-,----_."--_..__.- - ,.--------.-,--- Survey -,._- .----- ,,---.--..---- -.--.-- MD ft . 10045.99 I : 10050.00 ¡ 10075.00 I. 10100.00 10125.00 , 10150.00 I Incl deg 57.10 57.38 59.15 60.99 62.89 64.84 10175.00 66.84 10200.00 68.89 10225.00 70.97 10250.00 73.09 10275.00 75.23 10300.00 77.39 10325.00 79.58 10346.22 81.45 10406.27 81.45 10450.00 81.42 10500.00 81.42 10550.00 81.45 10556.98 81.45 10600.00 81.67 10650.00 81.95 10700.00 82.25 10723.47 82.40 10800.00 82.40 10900.00 82.40 11000.00 82.40 11100.00 82.40 11131.56 82.40 11200.00 85.14 11300.00 89.14 11321.56 90.00 11400.00 93.12 11423.64 94.06 11500.00 94.06 11600.00 94.06 11700.00 94.06 11800.00 94.06 11900.00 94.06 12000.00 94.06 12100.00 94.06 12200.00 94.06 12300.00 94.06 12394.16 94.06 12400.00 93.95 12500.00 92.08 12600.00 90.21 12610.94 90.00 12700.00 86.44 12712.82 85.92 12800.00 85.92 12900.00 85.92 13000.00 85.92 ( BP Amoco Planning Report - Geographic ( -""._-_._,,---_._-,---_..----""_..-._--~--,._--~---,,--,--_.-'- -- -. Date: 5/22/2001 Time: 07:10:22 Co-ordinate(NE) Reference: Well: W-21 , True North Vertical (TVD) Reference: Plan W-21 A 84.46 84.5 Section (VS) Reference: User (2160.09N,1881. 75E,112.53Azi) Plan: W-21A wp14 - ---- ---,- ----.-- --~~----'''-''----"''--' ~-- --" .,- ~ - --. .,-.--- ."'-~_... --, .,-". .~----- -- -.-- - -- - -- " - -- Azim deg 72.41 TVD ft 8805.32 --'-'---'--'- ---- ------'.----.- ---_.~-_.-. - -- - ~---_._-- Page: 5 .----------------------..-.-'..-.- --" -,,-,----. ._---~-,_._-- -------------- --"-----__0--'- .- -"----.-----.-------.,. --.--.---'--'---,- -,-,._-,_. ".-- - '- -.--.-...-.. ._- .,-----'--- - - ---- .. Map Map +N/-S +E/-W Northing Easting ft ft ft ft - ---.------ "-- -. - 2386.02 2235.25 5962050.01 614248.31 72.91 8807.49 2387.03 2238.47 5962051.06 614251.51 75.93 8820.64 2392.73 2258.95 5962057.07 614271.90 78.85 8833.12 2397.45 2280.09 5962062.11 614292.96 81.66 8844.88 2401.18 2301.83 5962066.16 614314.64 84.38 8855.89 2403.90 2324.10 5962069.21 614336.87 87.01 8866.12 2405.61 2346.84 5962071.26 614359.58 89.56 8875.54 2406.30 2369.99 5962072.29 614382.71 92.04 8884.12 2405.97 2393.46 5962072.31 614406.19 94.46 8891.84 2404.62 2417.20 5962071.32 614429.94 96.83 8898.66 2402.25 2441.13 5962069.31 614453.90 99.15 8904.58 2398.88 2465.18 5962066.29 614478.00 101.43 8909.57 2394.50 2489.28 5962062.27 614502.16 103.33 8913.06 2390.04 2509.73 5962058.12 614522.67 103.33 8921.99 2376.35 2567.51 5962045.29 614580.64 106.43 8928.50 2365.25 2609.30 5962034.82 614622.59 109.97 8935.97 2349.81 2656.26 5962020.08 614669.77 113.50 8943.42 2331.51 2702.18 5962002.47 614715.95 114.00 8944.46 2328.72 2708.50 5961999.77 614722.32 116.60 8950.77 2310.54 2746.97 5961982.17 614761.05 119.62 8957.90 2287.22 2790.62 5961959.51 614805.04 122.63 8964.77 2261.62 2833.01 5961934.55 614847.80 124.04 8967.90 2248.85 2852.43 5961922.06 614867.41 124.04 8978.02 2206.39 2915.29 5961880.55 614930.89 124.04 8991.25 2150.90 2997.43 5961826.30 615013.84 124.04 9004.47 2095.42 3079.56 5961772.05 615096.79 124.04 9017.70 2039.93 3161.70 5961717.80 615179.73 124.04 9021.88 2022.39 3187.62 5961700.65 615205.91 124.04 9029.31 1984.31 3243.99 5961663.41 615262.84 124.04 9034.30 1928.42 3326.74 5961608.77 615346.40 124.04 9034.46 1916.34 3344.59 5961596.96 615364.43 123.70 9032.33 123.60 9030.85 123.60 9025.44 123.60 9018.36 123.60 9011.28 123.60 9004.20 123.60 8997.12 123.60 8990.04 123.60 8982.96 123.60 8975.88 123.60 8968.80 123.60 8962.15 123.39 8961.74 119.85 8956.48 116.32 8954.48 115.93 8954.46 115.93 8957.23 115.93 8958.08 115.93 8964.28 115.93 8971.40 115.93 8978.51 .. _._,- ~ 1872.65 3409.69 5961554.24 615430.16 1859.58 3429.33 5961541.47 615450.00 1817.43 3492.77 5961500.28 615514.06 1762.23 3575.86 5961446.33 615597.95 1707.03 3658.94 5961392.37 615681.84 1651.83 3742.02 5961338.42 615765.73 1596.63 3825.10 5961284.47 615849.62 1541.43 3908.19 5961230.52 615933.51 1486.23 3991.27 5961176.57 616017.40 1431.03 4074.35 5961122.62 616101.29 1375.83 4157.44 5961068.67 616185.18 1323.86 4235.68 5961017.88 616264.18 1320.64 4240.54 5961014.74 616269.08 1268.30 4325.56 5960963.67 616354.87 1221.24 4413.75 5960917.94 616443.74 1216.43 4423.57 5960913.27 616453.63 1177.51 4503.61 5960875.55 616534.24 1171.91 4515.12 5960870.13 616545.83 1133.89 4593.32 5960833.28 616624.58 1090.27 4683.03 5960791.00 616714.92 1046.65 4772.73 5960748.73 616805.26 ""--- .--""". . --~ .. - "- ..._~." ,.- -. ....-- ... - .....,--."..-. _n..-,_' ~ - -''''''-''--- . -'" --- -.. -- -- .--,,_____n__. --~--~ ----.....--- --'- <- Latitude --> <- Longitude --> Deg Min See Deg Min See -- -. -- .. ..---- -- 70 18 18.627 N 149 4 28.036 W 70 18 18.637 N 149 4 27.942 W I 70 18 18.693 N 149 4 27.345 W II' 70 18 18.739 N 149 4 26.728 W . 70 18 18.776 N 149 4 26.094 W 70 18 18.803 N 149 4 25.445 W 70 18 18.819 N 149 4 24.782 W 70 18 18.826 N 149 4 24.107 W 70 18 18.823 N 149 4 23.422 W 70 18 18.809 N 149 4 22.730 W 70 18 18.786 N 149 4 22.032 W 70 18 18.753 N 149 4 21.331 W 70 18 18.710 N 149 4 20.628 W 70 18 18.666 N 149 4 20.032 W 70 18 18.531 N 149 4 18.347 W 70 18 18.421 N 149 4 17.129 W 70 18 18.269 N 149 4 15.760 W 70 18 18.089 N 149 4 14.421 W 70 18 18.062 N 149 4 14.236 W 70 18 17.883 N 149 4 13.115 W 70 18 17.653 N 149 4 11.842 W 70 18 17.402 N 149 4 10.606 W 70 18 17.276 N 149 4 10.040 W 70 18 16.858 N 149 4 8.208 W 70 18 16.312 N 149 4 5.813 W 70 18 15.766 N 149 4 3.419 W 70 18 15.220 N 149 4 1.025 W 70 18 15.047 N 149 4 0.269 W 70 18 14.673 N 149 3 58.626 W 70 18 14.122 N 149 3 56.214 W 70 18 14.004 N 149 3 55.693 W 70 18 13.574 N 149 3 53.796 W 70 18 13.445 N 149 3 53.223 W 70 18 13.030 N 149 3 51.374 W 70 18 12.487 N 149 3 48.952 W 70 18 11.944 N 149 3 46.530 W 70 18 11.400 N 149 3 44.109 W 70 18 10.857 N 149 3 41.687 W 70 18 10.314 N 149 3 39.265 W 70 18 9.770 N 149 3 36.844 W 70 18 9.227 N 149 3 34.422 W 70 18 8.684 N 149 3 32.001 W 70 18 8.172 N 149 3 29.720 W 70 18 8.141 N 149 3 29.579 W 70 18 7.625 N 149 3 27.101 W 70 18 7.162 N 149 3 24.530 W ---..-..--- 70 18 7.115 N 149 3 24.244 W 70 18 6.731 N 149 3 21.911 W 70 18 6.676 N 149 3 21.575 W 70 18 6.302 N 149 3 19.296 W 70 18 5.872 N 149 3 16.681 W 70 18 5.443 N 149 3 14.067 W --_. .. - - -.. .. --.- . -.. .......--- ( BP Amoco Planning Report - Geographic ( -,,-- .,,",-,_., ,---_.,-. Company: BP Amoco Date: 5/22/2001 Time: 07:10:22 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: W-21, True North Site: PB W Pad Vertical (TVD) Reference: Plan W-21A 84.46 84.5 Well: W-21 Section (VS) Reference: User (2160.09N, 1881. 75E, 112.53Azi) Wellpath: Plan W-21A Plan: W-21A wp14 ~----''''''----''-- ""--,.-.---.-- ----,~------,-_u. ._~..- --'---'----~ ---.--. ----_.._.._----~_._~-_.,,---------------, ""-'-'--'---'--"-'----'''---'_.~---''''''--'-''''--'''-'-----'-'- ,.,,---..- "--"-----'._-~,--, .------ - - .----.-- - .-- -.--. .-- Page: 6 Survey ,-.- .---.----.----------..- ..-- ...--.-- -----~------------_.._-_._-------------_... ------..------ '.-.--- ..-"..- - -~ "-.--._-'- ._0._".. .._"-- Map Map <- Latitude --> <- Longitude -> MD Incl Azim TVD +N/-S +E/-W Northing Easting Deg Min Sec Deg Min See ft deg deg ft ft ft ft ft - -_U -.--.-...-. -,---..---_".-_n. . ----------,.-.._--_..-.-- ,,--_..,----_....----_.~-_._-_._._-----_.__._.__._.---------..--.-..- ----.,~-_.._.__._.- ---...--'--_.__.-0 i 13100.00 85.92 115.93 8985.63 1003.04 4862.44 5960706.46 616895.60 70 18 5.013 N 149 3 11.452 W I 13200.00 85.92 115.93 8992.74 959.42 4952.14 5960664.19 616985.94 70 18 4.584 N 149 3 8.838 W I 13300.00 85.92 115.93 8999.86 915.80 5041.85 5960621.92 617076.27 70 18 4.154 N 149 3 6.223 W : 13400.00 85.92 115.93 9006.97 872.19 5131.55 5960579.65 617166.61 70 18 3.725 N 149 3 3.609 W 13500.00 85.92 115.93 9014.09 828.57 5221.26 5960537.38 617256.95 70 18 3.295 N 149 3 0.995 W 13600.00 85.92 115.93 9021.20 784.95 5310.96 5960495.11 617347.29 70 18 2.865 N 149 2 58.380 W 13700.00 85.92 115.93 9028.32 741.34 5400.67 5960452.84 617437.62 70 18 2.436 N 149 2 55.766 W 13730.86 85.92 115.93 9030.43 727.85 5428.34 5960439.77 617465.49 70 18 2.303 N 149 2 54.959 W 13800.00 88.41 114.72 9033.85 698.31 5490.75 5960411.17 617528.33 70 18 2.012 N 149 2 53.140 W 13844.12 90.00 113.95 9034.46 680.14 5530.94 5960393.60 617568.78 70 18 1.833 N 149 2 51.969 W 13900.00 92.24 113.95 9033.37 657.46 5582.00 5960371.69 617620.16 70 18 1.610 N 149 2 50.481 W 13939.42 93.81 113.95 9031.29 641 .47 5617.97 5960356.23 617656.37 70 18 1 .452 N 149 2 49.433 W 14000.00 93.81 113.95 9027.26 616.93 5673.21 5960332.52 617711.97 70 18 1.210 N 149 2 47.823 W 14100.00 93.81 113.95 9020.62 576.43 5764.40 5960293.39 617803.74 70 18 0.811 N 149 2 45.165 W 14200.00 93.81 113.95 9013.97 535.92 5855.59 5960254.25 617895.51 70 18 0.412 N 149 2 42.508 W 14300.00 93.81 113.95 9007.33 495.42 5946.78 5960215.11 617987.29 70 18 0.013 N 149 2 39.850 W 14400.00 93.81 113.95 9000.69 454.92 6037.96 5960175.98 618079.06 70 17 59.614 N 149 2 37.193 W 14500.00 93.81 113.95 8994.04 414.41 6129.15 5960136.84 618170.84 70 17 59.215 N 149 2 34.535 W 14600.00 93.81 113.95 8987.40 373.91 6220.34 5960097.70 618262.61 70 17 58.816 N 149 2 31.878 W 14700.00 93.81 113.95 8980.75 333.40 6311.53 5960058.57 618354.38 70 17 58.417 N 149 2 29.221 W 14800.00 93.81 113.95 8974.11 292.90 6402.72 5960019.43 618446.16 70 17 58.018 N 149 2 26.563 W 14900.00 93.81 113.95 8967.46 252.39 6493.90 5959980.29 618537.93 70 17 57.619 N 149 2 23.906 W 15000.00 93.81 113.95 8960.82 211.89 6585.09 9i§~9.4.L.1fi--,~ß .71 70 17 57.219 N 149 2 21.249 W 15095.05 93.81 113.95 8954.46 173.36 6671. 7~._~?_?_~.:_~~-----~.~~!~-~~~- 70 17 56.840 N 149 2 18.724 W ~ - -... . --..,,__n_.____,,-.,---.,--.- '~\J_.~-"""'''''''~'''~''w!1'~.'I''';'''L1III:~~'''''~''~''''''U",\.,,"f,/.1 ~ ''It':j~1''f.¡f ()'" n7J~ Re: W-21A operations ~c Subject: Re: W-21A operations Date: Fri, 08 Jun 2001 11 :33:35 -0700 From: Tom Maunder <tom_maunder@admin.state.ak.us> To: "Kolstad, Scott" <KolstaSR@BP.com> Scott, Your request is acceptable. Operations prior to exiting the casing are allowable with a sundry approval. Good luck, I hope your operations go well. Tom Maunder, PE Petroleum Engineer AOGCC "Kolstad, Scott" wrote: > Tom, > > As per our discussions regarding the Kuparuk river bridge and the Nabors 7ES > rig schedule, our contingency plan is to begin decompletion operations on > W-21A if the bridge is not fit for a rig move. We request approval to > proceed with operations on W-21 up to, but not including exiting the casing > until the Permit to Drill is approved. > > Our base plan is to move to 18-048 as soön as bridge and road conditions > allow. > > Thanks, > > Scott Kolstad > Drilling Engineer > 8P Alaska Drilling and Wells > (907) 564-5347 > (907) 564-4040' fa:x > kolstasr@bp.com Tom Maunder <tom maunder@admin.state.ak.us> Petroleum Engineer Alaska Oil and Gas Conservation Commission 1 of 1 6/8/01 11 :36 AM H 189914 ( DATE 05/16/01 DATE INVOICE / CREDIT MEMO DESCRIPTION GROSS lõO.OO VENDOR DISCOUNT ALASKÄOILA NET 100.00 00 ü5140i CK05i40iG PYMT OMMENTS: HANDL NG INST: Per it to Drill ee S/H - Terrie Hub Ie X4628 W/~~A- iE ATTACHED CHECK IS IN PAYMENT FOR ITEMS DESCRIBED ABOVE. TOTAL ~ . 0 BP EXPLORATION, (ALASKA) INC. P.o. BOX 196612 ANCHORAGE, ALASKA 99519-6612 FIRST NATIONAL BANK OF ASHLAND AN AFFILIATE OF NATIONAL CITY BANK CLEVELAND, OHIO No. H 189914 CONSOLIDATED COMMERCIAL ACCOUNT 56.389 412. 00189914 To The. ALASKA OIL AND GAS .. ORDER CONS:ERVATIO~COMMIS8IO~ O-f 333 WEST 7TH AVEN~E .SUI1"E . . . ... . . . .'. Of\lEHUNDRED & OO/10Ó~;**iti*****************~~**~*********** ua.DølLAR <DATÈ.':.AMOUNT O;51V l'¿,/O l'I;;:'/;;:L . . . $'100,øO<1 NQJ>VALlOAfTER.12Ö DAYS ... PAY ÄNCHORÄGE . . , "'" . . : : ~_'i: \><i . --..'\. ... . .... '............,...'..,. .. .:...,:.',......'.'............ . ..:,.'.,:.:....,.......',..,..........,. .. . ..... .."i./:.......,...i.>.:.'.::'......'.:'.. '.....'... ....;~ðlVt i ': ','" ~Þ'~ . III ~ 8 g g ~ L.III I: 0 L. ~ 2 0 ~ 8 ~ 51: 008 L. L. ~ g III ---... "" WELL PERMIT CHECKLIST COMPANY WELL NAME4f4 ¿J-¿¡~PROGRAM: exp - dev FIELD & POOL /~ ... n~ 6' LJo f ~ D INIT CLASS ,/J ~ J /' / "'c;>,)? GEOL AREA ¡(-7" ¿<, ADMINISTRATION 1, Permittee attached. , . . . , . , , . . . . , , , , , , . . , . N 2, Lease number appropriate. . , , . , . . . , , , , , . , . . , Y N 3. Unique well name and number. .. . . , . . . . . . . , , , . , Y N 4. Well located in a defined pool.. . . , , , . . . . . , , . . . , Y N 5. Well located proper distance from drilling unit boundary. . , , Y N 6. Well located proper distance from other wells., , , , . . . . . Y N 7, Sufficient acreage available in drilling unit.. . . , , , , , . . . Y N 8. If deviated, is wellbore plat included., . . . . . . . . . . . . , Y N 9. Operator only affected party., . . . , . , . , , , , , , . . . , Y N 10. Operator has appropriate bond in force. . . . . . , , , . , . . Y N 11. Permit can be issued without conservation order, , , , , . . , Y N 12, Permit can be issued without administrative approval., , . . . Y N 13. Can permit be approved before 15-day wait.. . , . . . , . , , Y N ~:: ~~~~~~~:~~~~~~~~e:1I kn~~n. US'DWs.' ., ., " '. '. " '. '. " ., ~ ~\~\'0t(.~\... ~",-'\à, h., ~(t 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. . . , . . . , Y N 18. CMT will cover all known productive horizons, , . . , . . . , , iN 19, Casing designs adequate for C, T, B & permafrost. , , , . . . N -.l., ( _\ 20, Adequate tankage or reserve pit.. . . . , . . . , . , , . . , , N t:.:f:.\~~Ç. ,\-~ ~ ttS.CL~ c\\""- 21, If a re-drill, has a 10-403 for abandonment been approved. , . N )0 \ -~ '"S ~ "' 22. Adequate wellbore separation proposed,. . . , . , , . . , , . <ì> N ('\.r'\ \.. \.Q,":>~ ~ v\>t"t'\r \.~ ~ \Ç. ~~\C, 23. If diverter r~qUired, doe~ it meet ~egUI~ti~,ns .d' , '. ' , . .' , '1'( ~ ~ '" Q~ 1.<:,,, ~"" \. "'~ rt, \~ ~>~Q:);--- \ ~ - ~ ~ ~~ L 24, Drilling flui program sc em atic equip 1st a eq. uate, . , . . ~.1.~ ...:R... or ~- ~ . ~C'(". ~ ~. t" \ \! D (' \ ~ ~ (i ~ t-o.. \c: 25. BOPEs, do they meet regulation. , . . . , , , , , . , , . . . N.:) \ ... \ - '" . ~~o~~ ~ ~ ~s. ~ ~ nV'\.<:..~ ~~ DATE 26. BOPE press rating appropriate; test to ~'Cl"ù psig. Y N ~~~ co:::.-ñ M~ ~ ¡¿P¿lL¿'~ 27. Choke manifold complies w/API RP-53 (May 84). . . . . . . . N 28. Work will occur without operation shutdown. , . , . , . . . . . N -- 29. Is presence ofH2S gas probable. , ,......",..... Y@~,\;\'~~\<"sz.\'i' 'R\\\~~<:y~'~~~~{ ~t\.~~~~Q.\c.~tv-\, GEOLOGY ~l ~:~1~~~:;~~:~:=Ër;:~:~~:~~~e~~~:~u~.s.. : : :: A~ : j¿li, . A 33: Seabed condition survey ;if off-shore). . . . . . : : : : . : : Y N ' ~ 34. Contact name/phone for weekly progress reports [exploratory 0 yJ Y N . . . . . ANNULAR DISPOSAL35. With proper cementing records, this plan (A) will contain waste in a suitable receiving zone; . , . . , . , (B) will not contaminate freshwater; or cause drilling waste. .. to surface; (C) will not impair mechanical integrity of the well used for disposal; Y N (D) will not damage producing formation or impair recovery from a Y N pool; and E will not circumvent 20 MC 25,252 or 20 MC 25.412. Y N GEOLOGY: ENGINEERING: UIC/Annular COMMISSION: ~~~ WM-------- "' 8~s(~ - <.. JMH APPR DATE -- -- serv - well bore seg _ann. disposal para req - UNIT# / / t:ç 0 ON/OFF SHORE CJ /Ll c 0 Z 0 -I ~ ::u -I m Z -I ::J: en :Þ ::u ( m :Þ Y N Y N Comments/Instructions: c:\msoffice\wordian\diana\checklist (rev. 11/01/100)