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Home My WebLink About204-188 · . Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. cQ Q ~ - t <6 8. Well History File Identifier Organizing (done) o Two-sided 1111111111111111111 o Rescan Needed 111111111111111I11I REJCAN ut'.Color Items: vrz{GreYSCale Items: \ ~ o Poor Quality Originals: DIGITAL DATA ~iskettes, No. ~ o Other, NolType: OVERSIZED (Scannable) o Maps: o Other Items Scannable by a Large Scanner o Other: OVERSIZED (Non-Scannable) o Logs of various kinds: NOTES: o Other:: BY: ~ Date: I 8-, D 7 I , Isl V11P 11111111111111" III Vl4P ~g vwp Project Proofing BY: ~ Date: II a-I 0 7 :1. X 30 = (p 0 Dat.' /~/b7 Isl Scanning Preparation BY: ~ + a~ = TOTAL PAGES (Count does not include cover sheet) Isl Production Scanning 11111111111111" 1/1 Stage 1 Page Count from Scanned File: RC¡ (Count does include cover sheet) BY: Page Count Matches Number in SCannin? Preparation: ~ Date:I/:J-/07 If NO in stage 1, page(s) discrepancies were found: VYES Stage 1 BY: YES NO Isl rn p NO Maria Date: Isl 1/1/11111/11111111I Scanning is complete at this point unless rescanning is required. ReScanned "'"111111111 "III BY: Maria Date: Isl Comments about this file: Quality Checked 1/11111111/11111111 10/6/2005 Well History File Cover Page.doc • • bp BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 0 Anchorage, Alaska 99519 -6612 REC August 22, 2011 EIVED AUG 31 2flf Mr. Tom Maunder Alert& 0)1 & G Co, c ommission Alaska Oil and Gas Conservation Commission 333 West 7 Avenue Anchorage, Alaska 99501 ,a0 j - I gO Subject: Corrosion Inhibitor Treatments of GPB C -Pad `7" j Dear Mr. Maunder, �l Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB C- Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Gerald Murphy, at 659 -5102. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator 0 • BP Alaska Inc. Exploration p ( Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) C -Pad 7/19/11 Corrosion Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # Initial top of cement pumped cement date inhibitor sealant date ft bbls ft na gal C -01A 2030100 500292012101 0.3 NA 0.3 NA 3.40 11/16/2010 C -02 1730040 500292012300 0.3 NA 0.3 NA 3.40 11/16/2010 C -03B 2051580 500292012402 0.3 NA 0.3 NA 3.40 11/16/2010 C -04B 2060570 500292012502 1.25 NA 1.25 NA 23.80 10/26/2010 C -05A 2010020 500292012601 0.8 NA 0.8 NA 3.40 11/23/2010 C -06B 2061040 500292012702 1 NA 1 NA 5.10 11/22/2010 C -07A 2000520 500292012801 0.3 NA 0.3 NA 1.70 11/22/2010 C -08B 2050110 500292012902 1 NA 1 NA 5.10 11/20/2010 C -09A 2020940 500292036601 0.1 NA 0.1 NA 0.85 11/23/2010 C -10A 2051370 500292037101 0.1 NA 0.1 NA 3.40 11/12/2010 C -11A 2030480 500292038201 0.1 NA 0.1 NA 1.70 11/13/2010 C -12B 2090850 500292038702 2 NA 2 NA 10.20 11/11/2010 C -13A 1971430 500292040401 10.7 NA 10.7 NA 74.80 11/25/2010 C -15A 2090520 500292042701 10.5 NA 10.5 NA 64.60 11/25/2010 C -16B 2060510 500292043802 45 10.0 0.6 7/19/2011 3.40 7/19/2011 C -17B 2040940 500292043902 1 NA 1 NA 6.80 11/13/2010 C -18B 2090710 500292078502 9.6 NA 9.6 NA 69.70 11/23/2010 C -19B 2000050 500292073502 11 NA 11 NA 76.50 10/27/2010 C -20C 2091300 500292074503 1.9 NA 1.9 NA 10.20 11/11/2010 C -21 1820810 500292074503 1.7 NA 1.7 NA 8.50 11/11/2010 C -22A 2060390 500292075801 0.7 NA 0.7 NA 5.10 11/11/2010 C -23C 2081700 500292077503 25 4.0 0.08 7/15/2011 0.85 7/19/2011 C -24A 2040580 500292081601 Sealed NA NA NA NA NA C -25B 2041090 500292081902 0.7 NA 0.7 NA 3.40 11/22/2010 C -26A 1981450 500292083401 0.8 NA 0.8 NA 3.40 11/22/2010 C -27B 2031860 500292084302 7.5 NA 7.5 NA 39.10 11/21/2010 C -28B 2100630 500292086702 1 NA 1 NA 5.10 11/21/2010 C -29A 1961700 500292147201 23 10.0 0.9 7/15/2011 6.80 7/19/2011 C -30A 2081690 500292177701 0.2 NA 0.2 NA 1.70 11/20/2010 C -31B 2030080 500292177502 0.8 NA 0.8 NA 5.10 11/22/2010 C - 32C 2061390 500292155903 0 NA 0 NA 0.00 11/13/2010 C -33A 2002020 500292237301 1 NA 1 NA 6.80 11/11/2010 C -34A 2060370 500292178501 2.2 NA 2.2 NA 10.20 11/20/2010 C -35B 2061290 500292155302 1.5 NA 1.5 NA 10.20 11/15/2010 C -36A 2000020 500292179001 2 NA 2 NA 10.20 11/13/2010 C -37B 2101000 500292236002 4.7 NA 4.7 NA 30.60 10/28/2010 C -38 1860660 500292157100 0.1 NA 0.1 NA 0.85 11/15/2010 C -39A 2050030 500292238301 1 NA 1 NA 0.85 11/23/2010 C-41A 2041880 500292238501 Sealed NA NA NA NA NA C -42 1930500 500292235700 2.6 NA 2.6 NA 13.60 11/13/2010 a STATE OF ALASKA • ALASKA BAND GAS CONSERVATION COMMISSIO REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon ❑ Repair Well ❑ Plug Perforations ❑ Stimulate Other ❑ Performed: Alter Casing ❑ Pull Tubing ❑ Perforate New Pool ❑ Waiver❑ Time Extension ❑ Change Approved Program ❑ Operat. Shutdown ❑ Perforate 0 Re -enter Suspended Well ❑ 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: 5. Permit to Drill Number: Name: Development ISI Exploratory ❑ • 204 -1880 3. Address: P.O. Box 196612 Stratigraphic Service ❑ 6. API Number: Anchorage, AK 99519 -6612 • 50- 029 - 22385 -01 -00 8. Property Designation (Lease Number) : 9. Well Name and Number: ADLO- 028305 PBU C -41A 10. Field /Pool(s): PRUDHOE BAY FIELD / PRUDHOE OIL POOL 11. Present Well Condition Summary: Total Depth measured 13513 feet Plugs (measured) None feet true vertical 9028.85 feet Junk (measured) 10909, UNK feet Effective Depth measured 13499 feet Packer (measured) 10708, 10910 10921 11310 feet true vertical 9029.47 feet (true vertical) 8800. 8911 8916 9019 feet Casing Length Size MD TVD Burst Collapse 1 Structural Conductor 84' 20" 91.5# H -40 35 - 119 35 - 119 1490 470 Surface 3187' 13 -3/8" 68# L -80 34 - 3221 34 - 3217 4930 2270 Production 10082' 9 -5/8" 47# NT80S 33 - 10115 33 - 8441 6870 4760 Liner 1445' 7" 29# L -80 9952 - 11397 8333 - 9020 8160 7020 Liner 203' 4 -1/2# 13.5# L -80 11306 - 11509 9019 - 9018 Liner 2603' 2 -3/8" 4.7# L -80 10910 - 13513 8911 - 9029 11200 11780 Perforation depth: Measured depth: SEE ATTACHED - _ _ True Vertical depth: Tubing: (size, grade, measured and true vertical depth) 3 -1/2" 9.2# 13Cr80 31 - 10809 31 - 8857 3 -1/2" 9.3# L -80 10798 - 10918 8851 - 8915 4 -1/2" 12.6# L -80 10918 - 10925 8915 - 8918 3 -1/2" 9.3# L -80 10925 - 10942 8918 - 8926 Packers and SSSV (type, measured and true vertical depth) 3 -1/2" Baker S -3 Packer 10708 8800 KB Liner Top Packer 10910 8911 4 -1/2" Baker SABL -3 Packer ' .1�0�9 8916 4-1/2" Baker FB-2 Packer EC E4 E 9019 12. Stimulation or cement squeeze summary: SEP 0 9 2011 Intervals treated (measured): Treatment descriptions including volumes used and final pressure: �18Ska Oil & Gas Cons. Commission Anchorage 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas -Mcf Water -Bbl Casing Pressure Tubing pressure Prior to well operation: 519 29,613 49 1,162 Subsequent to operation: 545 31,557 39 473 14. Attachments: 15. Well Class after work: Copies of Logs and Surveys Run Exploratory Development IV' Service ❑ Stratigraphic ❑ Daily Report of Well Operations X 16. Well Status after work: Oil „ 0 Gas ❑ WDSPL ❑ GSTOR ❑ WINJ ❑ WAGE' GINJ ❑ SUSP❑ SPLIJ'G ❑ 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: NA Contact Joe Lastufka Printed Na . - oe Lastualk Title Petrotechnical Data Technologist Signah �,� Phone 564 -4091 Date 9/9/2011 f� C-41A 204 -188 PERF ATTACHMENT Sw Name Operation Date Perf Operation Code Meas Depth Top Meas Depth Base Tvd Depth Top Tvd Depth Base C-41A 11/25/04 PER 12,338. 12,378. 9,022.86 9,024. C-41A 11/25/04 PER 12,438. 12,468. 9,025.78 9,027.31 C-41A 11/25/04 PER 12,588. 12,738. 9,031.41 9,034.14 C-41A 11/25/04 PER 12,768. 12,838. 9,033.35 9,030.69 C-41A 11/25/04 PER 12,868. 13,198. 9,029.59 9,032.85 C-41A 11/25/04 PER 13,303. 13,493. 9,033.65 9,029.74 C-41A 6/20/05 APF 12,192. 12,242. 9,015.32 9,018.33 C-41A 6/21/05 APF 11,997. 12,022. 9,001.11 9,002.74 C-41A 6/21/05 APF 12,022. 12,047. 9,002.74 9,005.45 C-41A 6/22/05 APF 11,773. 11,798. 9,008.99 9,008.99 C-41A 5/27/07 BPS 10,846. 13,493. 8,877.75 9,029.74 C-41A 7/30/07 BPP 10,846. 13,493. 8,877.75 9,029.74 11111 C-41A 8/4/08 BPS 10,870. 10,890. 8,890.48 8,900.78 C-41A 12/5/08 SPS 10,831. 10,870. 8,869.6 8,890.48 C-41A 2/28/09 BPP 10,870. 10,890. 8,890.48 8,900.78 C-41A 2/28/09 SPR 10,831. 10,870. 8,869.6 8,890.48 C-41A 7/2/10 BPS 10,732. 12,242. 8,814.03 9,018.33 C-41A 3/15/11 BPP 10,732. 12,242. 8,814.03 9,018.33 C-41A 8/16/11 APF 11,440. 11,470. 9,018.74 9,018.3 C-41A 8/16/11 APF 11,470. 11,500. 9,018.3 9,017.83 C-41A 8/17/11 APF 11,410. 11,440. 9,019.31 9,018.74 AB ABANDONED PER PERF APF ADD PERF RPF REPERF BPP BRIDGE PLUG PULLED SL SLOTTED LINER BPS BRIDGE PLUG SET SPR SAND PLUG REMOVED FCO FILL CLEAN OUT SPS SAND PLUG SET FIL FILL SQF SQUEEZE FAILED • MIR MECHANICAL ISOLATED REMOVED SQZ SQUEEZE MIS MECHANICAL ISOLATED STC STRADDLE PACK, CLOSED MLK MECHANICAL LEAK STO STRADDLE PACK, OPEN OH OPEN HOLE • C -41A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 8/16/2011 CT -8 1 1/2" CTV -29.8 bbl. :Scope of Work: Drift, Memory depth log, CIBP, 90' 6 SPF perfs. RIH w /gun set #1, 30' x 1.56" x 6SPF x 1606 PJ. Perf from 11,470'- 11,500'. POOH. 'RIH w/ perf gun #2 (30') and perforate 11440- 11470' w/ SWS 1.56" guns @ 6 spf. POH. Cut 125' of CT for chrome management. RIH w/ SWS GR/CCL for coil flag, ': j ;log 11,360'- 11,000, POOH check data. :« «JOB IN PROGRESS » »> 8/17/2011' CT -8 1 1 /2" CTV -29.8 bbl. Scope of Work: Drift, Memory depth log, CIBP, 90' 6 SPF perfs. RD & logging tools, good data, +17' correction. MU 3rd, 30' x1.56" perf guns. RIH and perforate 11410 - 11470'. POH. Weekly BOPE test. MU /RIH w/ HAL 2 3/8" CIBP. Tag in liner top @ 10895'. Minor sticking in liner top. Pull free /POOH. Decision from town to not re -run a CIBP at this time. Plug was retrieved. Lost upper retaining ring. See Log entries for details. FP welibore to 2500' w/ water /meth. Job ; is complete. RDMO. Job is complete. FLUIDS PUMPED BBLS 149 1% S -KCL W/ SAFE LUBE 21 50/50 METH 170 TOTAL TREE _ CM! WELLHEAD = FMC • SAFETY TOP OF CEMENT UNKNOWN. ACTUATOR = BAKER C C -41 A SUGGESTS VOLUMES PE PE IN C LDP ARE TEST KB. ELEV = 72.6' BF. ELEV = 34' ( ( UNCOVERED. * * *3 - 1//2" CHROME TUBING* ** KOP = 4522' Max Angle = 104° @ 11565' ' 1 2006' I - 13 - 1/2" HES X NIP (9 -CR), ID = 2.813" 1 Datum MD = 10836' GAS LIFT MANDRELS Datum TVD= 8800'SS ST MD TVD DEV TYPE VLV LATCH PORT DATE 2 3501 3497 1 MMG DOME RK 16 02/25/09 13 -3/8" CSG, 68 #, L -80 BTC, ID = 12.415" H 3221' 1 5979 5798 41 MMG SO RK _ 20 _02/25/09 I TOP OF 7" LNR I—I 9952' 1 9952' I-I9 -5/8" X 7" LNR HGR, ID = ? I 19 -5/8" CSG, 47 #, NT -80 NSCC, ID = 8.681" H 10117' I 10668' 1 - 1/2" HES X NIP (9 -CR), ID = 2.813" I Minimum ID =1.74" @ 10932' 10698' H7 " X3 -112" BKRS -3 PKR, ID= 2.990" I MILLED AL BULLNOSE & LOC SEAL ASSY 4 '' 10732' 1-13-1/2" HESX NIP(9 -CR), ID= 2.813" I 3 -1/2" TBG, 9.2 #, 13CR -80 VAM TOP, --I 10784' I 10799' I X 3 -1/2" UNIQUE OVERSHOT 0087 bpf, ID = 2.992" 10876' 1 - 13 - 1/2" SWS NIP, ID = 2.750" I 13 -1/2" TBG STUB (02/05/09) H 10787' ? J — I FISH - WRP RUBBER ELEMENTS (03/03/09) I FISH - BROKEN RETAINER RINGS ? ∎I' ■Z 10909' 1 BKR KB LNR TOP PKR, ID = 1.812" 1 FROM HES CIBP (08/17/11) 5 :4 10921' — 7" X 3 -1/2" BAKER SABLI -3 PKR, ID = 3.938" (BEHIND PIPE) 10932' 1 1 LOC SEAL ASSY, AL BULLNOSE, & MILLED OUT SHOE, MILLED ID = 1.74" (06/19/05) I 10935' H2.70" BKR DEPLOY SLV, ID = 2.250" I 10937' H3-1/2" SWS NIP, ID = 2.725" I 10941' 1 — I3 WLEG, ID = 2.992" I 3 -1/2" TBG, 9.3 #, L -80 TDS, — 10941' ( BEHIND PIPE .0087 bpf, ID = 2.992" ' 1 10947' I - 1 ELMD TT LOGGED 08/08/97 I (TQP OF 4 -1/2" SLTD LNR 1-1 11310' - 14,• 11•� 11310' I — 7" X 4 -1/2" BAKER FB -2 PKR W /SEAL 111 1, BORE EXTENSION IM Ohm 11316' I--I PORTED PUP JOINT I 1 1 . 17" LNR, 29 #, L -80 NSCC, .0371 bpf, ID = 6.184" H 11397' 4 '1 i' • 1 .1 — ITOP OF WHIPSTOCK H 11502' 1 I•1 , • MILLOUT WINDOW (WELL C -41A) 11504' - 11509' IRA TAG H 11509' `k PERFORATION SUMMARY REF LOG: MCNL /CCL /GR ON 11/24/04 TIE -IN LOG: GEOLOGY PDC LOG ( 11974' i — TWO PUP JOINTS ■ ANGLE AT TOP PERF: 89° @ 11773' ` w /MARKERS Note: Refer to Production DB for historical perf data SIZE I SPF I INTERVAL I Opn /Sqz I DATE ■ ■ SEE PAGE 2 FOR PERFORATION DATA 1 ■ 1 1 1 AWO ■ * *PERFS FROM ORIGINAL WELL - BEHIND PIPE 'A I PBTD I-I 13499' I I PBTD 1 12432' 2 -3/8" LNR, 4.70 #, L -80 STL, — I 13513' 1 4 -1/2" SLTD LNR, 13.5 #, L -80, ID = 3.845" 1 12453' .0039 bpf, ID = 1.995" DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 09/07/93 D16 ORIGINAL COMPLETION 08/18/11 PBS/ PJC ADPERF/ FISH (08/17/11) WELL: C-41A 11/26/04 NORDICI CTD SIDETRACK (C -41A) PERMIT No: 2041880 02/07/09 D16 RWO API No: 50- 029 - 22385 -01 04/15/09 HB /JMD DRLG DRAFT CORRECTIONS SEC 19, T11 N, R14E, 1930' FNL & 884' FEL 07/30/10 JCM/PJC SET XX PLUG (07/02/10) 03/26/11 MBM/PJC PULL XX PLUG (03/16/11) BP Exploration (Alaska) • • C-41A t 1 ik 1 Ili PERFORATION SUMMARY A l♦ ,u REF LOG: MCNL /CCL /GR ON 11/24/04 ' , X 16 , TIE -IN LOG: GEOLOGY PDC LOG 1 •■ ANGLE AT TOP PERF: 91° @ 11410' m1 m Note: Refer to Production DB for historical perf data �� SIZE SPF INTERVAL Opn /Sqz DATE • 116 * $ 1.56" 6 11410 - 11500 0 08/17/11 ■• 1- 9/16" 6 11773 - 17798 0 06/22/05 1- 9/16" 6 11997 - 12047 0 06/22/05 1- 9/16" 6 12338 - 12378 0 11/24/04 �� 1- 9/16" 6 12438 - 12468 0 11/24/04 1- 9/16" 6 12588 - 12738 0 11/24/04 1- 9/16" 6 12768 - 12838 0 11/24/04 1- 9/16" 6 12868 - 13198 0 11/24/04 1- 9/16" 6 13303 - 13493 0 11/24/04 ■ ■ *• 4.1 1.1.1.1 t.1 DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 09/07/93 D16 ORIGINAL COMPLETION 08/18/11 PBS/ PJC ADPERF/ FISH (08/17/11) WELL: C-41A 11/26/04 NORDICI CTD SIDETRACK (C -41A) PERMIT No: 2041880 02/07/09 D16 RWO API No: 50- 029 - 22385 -01 04/15/09 HB /JMD DRLG DRAFT CORRECTIONS SEC 19, T11 N, R14E, 1930' FNL & 884' FEL 07/30/10 JCM/PJC SET XX PLUG (07/02/10) 03/26/11 MBMJPJC PULL XX PLUG (03/16/11) BP Exploration (Alaska) • • Page 1 of 1 Maunder, Thomas E (DOA) From: Hubble, Terrie L [Terrie.Hubble@bp.com] Sent: Tuesday, March 17, 2009 4:25 PM To: Maunder, Thomas E (DOA) ,c ~:.r3'Lrd~~~+~ Y'C19~~~ .'tYl H ~ d ~ L, xJ U;~ Subject: RE: C-41A (204-188) Attachments: C-41A Well History.xls Hi Tom, Yes, there were some pre-rig operations. I have created the report and attached it for you. Sorry for the trouble. Terrie ~i'n ~ `J~ ICJ i •r`~ ~~ ~ i~ ~4~--- From: Maunder, Thomas E (DOA) [mailto:tom.maunder@alaska.gov] Sent: Monday, March 16, 2009 9:47 AM To: Hubble, Terrie L; Stewman, Sondra D Subject: C-41A (204-188) Terrie or Sondra, I am reviewing the 404 submitted for the recent workover. 1. Was there any pre-rig activity prior to February 2? If there is additional activity, emailing the operations report is fine. Thanks in advance, Tom Maunder, PE AOGCC 3/17/2009 STATE OF ALASKA ~~ ~ ~,~~ye~ ,, ,rn~' ~ i U 4' ALA OIL AND GAS CONSERVATION CO SION .~9~9 `~ ~~"~ REPORT OF SUNDRY WELL OPE~TIONS MAR 0 ~ ZU09 1. Operations Performed: ~hChOfB ^ Abandon ®Repair Well - ^ Plug Perforations ^ Stimulate ^ Re-Enter S~pended Well ^ Alter Casing ®Pull Tubing - ^ Perforate New Pool ^ Waiver ^ Other ^ Change Approved Program ^ Operation Shutdown ^ Perforate ^ Time Extension 2. Operator Name: 4. Well Class Before Work: 5. Permit To Drill Number: BP Exploration (Alaska) Inc. ®Development- ^ Exploratory 204-188 - 3. Address: ^ Service ^ Stratigraphic 6. API Number: P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-22385-01-00 7. KB Elevation (ft): 72 6' - 9. Well Name and Number: . PBU C-41A- 8. Property Designation: 10. Field /Pool(s): _ ADL 028305 Prudhoe Bay Field / Prudhoe Bay Oil Pool 11. Present well condition summary Total depth: measured 13513 - feet true vertical 9029 ° feet Plugs (measured) None Effective depth: measured 13499 ~ feet Junk (measured) None true vertical 9029 - feet Casing Length Size MD TVD Burst Collapse Structural Conductor 80' 20" 112' 112' 1490 470 Surface 3187' 13-3l8" 3221' 3217' 5020 2260 Intermediate 10082' 9-5/8" 10117' 8442' 6870 4750 Production Liner 1445' 7" 9952' - 11397' 8333' - 9020' 8160 7020 Liner 1147' 4-1/2" 11306' -11502' 9019' - 9018' 8430 7500 Liner 2604' 2-3/8" 10909' - 13513' 8910' - 9029' 11200 11780 Perforation Depth MD (ft): 11773' - 13493' Perforation Depth TVD (ft): 9009' - 9030' 3-1/2", 9.2# / 9.3# 13Cr80 / L-80 10941' Tubing Size (size, grade, and measured depth): Packers and SSSV (type and measured depth): 7" x 3-1/2", BKR S-3 Packers 10698' & 10921' 12. Stimulation or cement squeeze summary: Intervals treated (measured): ~'~y~ ~~~~ ~C9-5~ ~~C ~ n !~~ Treatment description including volumes used and final pressure: 13. Re resentative Dail Avera a Production or In'ection Data Oil-Bbl Gas-Mcf Water-Bbl Casin Pressure Tubin Pressure Prior to well operation: Subsequent to operation: 14. Attachments: ^ Copies of Logs and Surveys run 15. Well Class after work: ^ Exploratory ®Development ^ Service ® Daily Report of Well Operations 16. Well Status after work: ® Well Schematic Diagram ®~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: Contact Hank Baca, 564-5444 N/A Printed Name Sondra Stewman Title Drilling Technologist ~ ~~..pp~~ Prepared By Name/Number: J~ 1 I1 ignature Phone 5 -4694 Dat . Sondra Stewman 564-4750 Form 10-404 Revised 04/2006 ~ ~ ~" ~~ Submit Original Only WELLHEAD = ACTUATOR = KB. ELEV = BF. ELEV = 34' KOP = 4522' Max Angle = 104 @ 11564' Datum MD = 10837' Datum TV D = 8800' SS 4-1/2" -5M CIW BAF ~ • C -41 A 72.6' D R LG DRAFT 13-3/8" CSG, 68#, L-80, ID = 12.415" 3219' TOP OF 7" LNR 9-518" CSG, 47#, NT-80, ID = 8.681" ~-~ 1 Minimum ID =1.74" @ 10932' MILLED AL BULLNOSE & LOC SEAL ASSY 3-1/2" TBG, 9.2#, 13CR-80 VAM TOP, I 10784' .0087 bpf, ID = 2.992" 3-1/2" TBG STUB (TAGGED 02/05/09) SA NOTES: TOP OF CEMENT UNKNOWN. VO~S PUMPED & CTD PRESS. TEST SUGGESTS PERFS IN 7" LNR ARE UNCOVERED. 2006' ~~ 3-1 /2" X NIP, ID = 2.803" C;AR I IFT MANDRFI S ST MD TVD DEV TYPE VLV LATCH PORT DATE 2 1 3501 5979 3497 5798 1 41 MMG MMG DOME SO RK RK 16 20 02/25/09 02/25/09 10668' ~~ 3-1/2" X NIP, ID = 2.803" 10698' ~~ 7" X 3-1 /2" BLR S-3 PKR, ID = 2.990" 10732' ~ 3-1 /2" X NIP, ID = 2.803" 10800' 7" X 3-112" UNIQUE OVERSHOT 10876' 3-1/2" NIP, SWS, 10= 2.750" ? FISH: WRP RUBBER ELEMENTS (03/03/09) 10909' 3-1 /2" BKR KB LTP, ID = 1.812" 10921' 7" X 3-1/2" BKR S-3 PKR, ID = 3.938" (BEHIND PIPE) 10932' -{ LOC SEAL ASSY, AL BULLNOSE, & MILLED Il OUT SHOE, MILLED ID = 1.74" (06/19/05) 70" BKR DEPLOY SLV ID = 2 250" 10935' 2 , . . ID = 2 725" 10937' 3-1/2" SWS NIP . , 3-1/2" TBG, 9.2#, L-80..0087 bpf, ID = 2.992" 10941' 10941' 3-1/2", WLEG, ID = 2.992" 10947' ELMD TT LOGGED 08/08/97 BEHIND TOP OF 4-1/2" SLTD LNR 11309' PIPE 11309' 7" X 4-1/2" BKR FB-2 PKR W/SEAL BORE EXTENSION • • • • 11316' PORTED PUP JOINT 7" LNR, 29#, NT-80, .0371 bpf, ID = 6.184" 11397' TOP OF WHIPSTOCK RA TAG I-i 11509' PERFORATION SUMMARY REF LOG: MCNUCCUGR ON 11/24/04 TIE-IN LOG: GEOLOGY PDC LOG ANGLE AT TOP PERF: 89 @ 11773' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE SEE PAGE 2 FOR PERFORAl10N DATA 11974' TWO PUP JOINTS w /MARKERS PBTD 13499' PBTD 12432' 2-3/8" LNR, 4.70#, L-80 STL, 13513' 4-1 /2" SLTD LNR, 13.5#, L-80, ID = 3.845" 12453' .0039 bpf, ID = 1.995" DATE REV BY COMMENTS DATE REV BY COMMENTS 09107193 D16 ORIGINAL COMPLETION 03/03/09 JCM/SV GLV C/O (02/25/09) 11126104 NORDICI CTD SIDETRACK (C-41A) 02/07/09 D16 RWO 02/12/09 JDM/PJC DRLG CORRECTIONS 03/01109 JCM/PJC PULL WRP! JNK CAT/ SLUGGIT 03/03/09 JCM/SV FISH PRUDHOE BAY UNIT WELL: C-41A PERMIT No: `2041880 API No: 50-029-2238501 SEC 19, T11N, R14E, 1930' FNL & 884' FEL BP Exploration (Alaska) 4-1/2" MILLOUT WINDOW (C-41 A) 11504' - 11509' ~ C -41 A ~ DRLG DRAFT PERFORATION SUMMARY REF LOG: MCNL/CCL/GR ON 11!24/04 TIE-IN LOG: GEOLOGY PDC LOG ANGLE AT TOP PERF: 89 @ 11773' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 1-9/16" 6 11773 - 17798 O 06/22/05 1-9/16" 6 11997 - 12047 O 06/22/05 1-9/16" 6 12338 - 12378 O 11/24/04 1-9/16" 6 12438 - 12468 O 11/24/04 1-9/16" 6 12588 - 12738 O 11/24/04 1-9/16" 6 12768 - 12838 O 11/24/04 1-9/16" 6 12868 - 13198 O 11/24104 1-9/16" 6 13303 - 13493 O 11/24!04 DATE REV BY COMMENTS DATE REV BY COMMENTS 09107/93 D16 ORIGINAL COMPLETION 03/03/09 JCM/SV GLV C/O (02/25/09) 11126/04 NORDIC1 CTD SIDETRACK (C-41A) 02/07109 D16 RWO 02/12/09 JDM/PJC DRLG CORRECTIONS 03/01/09 JCM/PJC PULL WRP/ JNK CAT/ SLUGGIT 03/03/09 JCM/SV FISH PRUDHOE BAY UNIT WELL: C-41A PERMIT No: `2041880 API No: 50-029-22385-01 SEC 19, T11N, R14E, 1930' FNL 8 884' FEL BP Exploration (Alaska) • C-41A, Well History (Pre Rig Workover) Date Summary 12/05/08 WELL S/I ON ARRIVAL. DRIFT TO 10841' SLM WITH EMPTY DUMP BAILER. LIGHTLY TAG WRP. MADE 4 DUMP BAILER RUNS DUMPING 11' OF SLUGGITS ON TOP OF 3.5"WRP. (LAST TAG ON SLUGGITS @ 10,831' SLM). SET 2.70" JUNK CATCHER @ 10,831' SLM. LEFT WELL S/I NOTIFY DSO. 12/13/08 T/IA/OA= SI/0/0 Temp=cold PPPOT-T (PASS) PPPOT-IC (PASS) (Pre RWO) PPPOT-T RU 2 HP bleed tools onto THA 100 psi to 0 psi, flush void until clean returns achieved. Pressured to 5000 psi for 30 minute test, 5000/ 15 minutes, 5000/ 30 minutes. Bleed void to 0 psi, RD test equipment. Cycle and torque LDS "ET style" all moved with no problems. PPPOT-IC RU 1 HP BT onto IC test void, 50 psi to 0 psi. Pressure void to 3500 psi for 30 minute test, 3400/ 15 minutes, 3400/ 30 minutes. Bleed void to 0 psi, RD test equipment. Cycle or torque LDS "Standard" all moved with no problems. 12/17/08 WELL SHUT IN,SSV CLOSED, SWAB CLOSED. IA/OA OPEN TO GAUGES. INITIAL T/I/O = 100/0/100 PSI RIG UP E-LINE TO CUT TUBING WITH A 2.5" POWER CUTTER. RUN # 1 HIGH STRAND STUCK WIRELINE IN FLOW TUBES AFTER ATTEMPTING TO FIRE CUTTER. STUCK IN FLOW-TUBES AT 151'. PERFORMED BOP STRIP-OVER OPERATION AND REFORMED /CLEANED E-LINE AT DAMAGED AREA. MAKE UP AND POOH. MIS-RUN WITH 2.5" CUTTER, FOUND BAD INSULATOR IN FIRING HEAD. PREP TO REREAD WIRELINE FOR RUN #2 WITH 2.5" CUTTER. FINAL T/I/O =100/0/100 12/18/08 CUT TUBING AT 10800' WITH A 2.5" POWER CUTTER, FINAL T/I/O = 160/0/100 WELL LEFT SHUT IN, SWAB SHUT, IA/OA OPEN TO GAUGES, SSV CLOSED, DSO NOTIFIED. JOB COMPLETE, LEAVE LOCATION. 01/01/09 T/I/0=120/0/80 Circ-Out Pumped down Tbg taking returns up IA to flowline with 5 bbl meth spear followed by 1096 bbls 1 % KCL. Freeze protected TxIA with 3 bbls neat meth, 155 bbls 110°F diesel, 3 bbls neat meth by pumping down IA taking returns up Tbg to flowline. U-tubed TxIA for 1 hr. Freeze protected flowline with 20 bbls 60/40 meth and 10 bbls diesel through hardline jumper. FWHP's = 0/0/0. SV, WV, SSV = C; MV = O; IAV, OAV = OTG. 01/17/09 T/I/O =0/0/0 Set 4-1/16" CIW "H" BPV # 152 thru tree, 1-2' ext. used...tag Cad 98"...pre-rig..no problems. Page 1 of 1 0.501 WHSUR I N BP EXPLORATION Operations Summary Report Legal Well Name: C-41 Common Well Name: C-41 Event Name: WORKOVER Start: 12/16/2008 Contractor Name: DOYON DRILLING INC. Rig Release: 2/8/2009 Rig Name: DOYON 16 Rig Number: Date 2/1 /2009 From - To ~ Hours Task ~ Code ~ NPT i Phase 18:00 - 20:30 I 2.50 I MOB I P 20:30 - 21:00 I 0.50 I MOB I P 21:00 - 22:00 1.00 MOB P 22:00 - 23:00 1.00 MOB P 23:00 - 00:00 1.00 MOB P 2/2/2009 00:00 - 01:00 1.00 MOB P 01:00 - 10:30 9.50 MOB P 10:30 - 12:30 2.00 MOB P 12:30 - 14:30 2.00 MOB P 14:30 - 15:30 1.00 MOB P 15:30 - 17:30 2.00 RIGU P 17:30 - 19:00 1.50 WHSUR P 19:00 - 19:30 0.50 WHSUR P 19:30 - 20:30 1.00 WHSUR P 20:30 - 21:00 21:00 - 00:00 2/3/2009 00:00 - 00:30 00:30 - 02:00 02:00 - 03:30 03:30 - 07:00 07:00 - 08:00 08:00 - 10:00 3.001 WHSUR I P • Page 1 of 6 ~ Spud Date: 8/12/1993 End: Description of Operations PRE Hold PJSM on Bridling up and RD Rig floor. Bridle up to lay over Derrick. RD floor equipment. Remove pins from Torque tube. Remove rig mats from under front of Rig. PRE Hold PJSM on laying Derrick down and moving off of well 11-09A. Discuss hazards, explain procedures to new members of Rig crew and assign people to positions. Lay Derrick down. PRE Move Rig off of well 11-09A and stage in the center of DS 11. PRE Remove BOP stack from pedestal in cellar and place on transport cradle. PRE Install rear Booster wheels and function test same. PRE Finish installing and testing rear Booster wheels. Make final preparations for rig move. PRE Move off of DS 11 to C-pad. PRE Spot rig on C-Pad and raise derrick. Remove rear booster wheels. Rig up floor and place BOP's in rig cellar. PRE Remove bridle lines and hang back in derrick. Lay herculite and matting boards. Spot tree and wellhead equipment behind well. PRE Spot rig over C-41 and shim in place. PRE Rig up double annulus valve on IA. R/U circ manifold. Install secondary valve on OA and connect to bleed hose on slop tank. Rio Accepted at 1600-hrs. DECOMP PJSM with Valve Crew. P/U Lubricator, connect to tree and PT to 500 si with diesel. P II t No pressure underneath BPV. UD Lubricator. Take on 8.5-ppg Seawater. DECOMP RU to circulate out Diesel freeze protection. DECOMP Hold PJSM on circulating out freeze protection with rig crew, Doyon Tourpusher, BP WSL and CH2MHill truck drivers. Discuss spill potential, permitting, proper PPE and assign people to positions. Spot #2 Mud pump module. SFAL DECOMP Totco system malfunctioning and problems with #1 Mud pump. Troubleshoot and get both working again. PT lines to 3500-psi. DECOMP Circulate out diesel freeze protection and displace well to 8.5-ppg seawater. Pump 20-bbl Hi Vis sweep at 3-BPM with 280-psi. Chase sweep at 7-BPM with 1200-psi. See fluid from OA 10-bbls into sweep. Continue circulating until flow from OA 0.50 1.50 WHSUR WHSUR P P DECOMP DECOMP stablizes to slow dri .Monitor well -Dead. Blow down all circulating lines and OA. Remove circulating equipment from top of tree. FMC tech T-bar in TWC. Test TWC to 1000- si from below for 10-charted minutes. Good test. Test TWC to 3500- si from above for 10-charted minutes. Good test. Blow down all lines used for testing. 1.50 WHSUR P DECOMP Drain tree. ND and remove tree and adapter flange from cellar. FMC tech terminate control lines and check tubing hanger threads (4-1/2" TDS). XO makes up with 8-1/2 rounds. 2 barriers for ND are 1) WRP at 10,800' and 2) Tested TWC. 3.50 BOPSU P DECOMP NU 13-5/8" x 11"spacer spool and BOP stack. 1.00 BOPSU P DECOMP RU to test BOPE. Fill Stack & lines. 2.00 BOPSU P DECO P rocedures & AOGCC regs. Test to 250-psi low pressure and 3500-psi high pressure. Hold and chart all tests for 5-minutes. Test VBRs using 3-1/2" and 4" test jts and Annular with 3-1/2" test jt. BP WSL Printed: 2/16/2009 11:53:54 AM • • BP EXPLORATION Operations Summary Report Legal Well Name: Common Well Name Event Name: Contractor Name: Rig Name: C-41 C-41 WORKOVER Start: 12/16/2008 DOYON DRILLING INC. Rig Release: 2/8/2009 DOYON 16 .Rig Number: Date. From - To Hours I Task ~ Code NPT Phase 2/3/2009 108:00 - 10:00 2.001 BOPSUgP 10:00 - 12:00 2.001 BOPSUF{P 12:00 - 14:30 2.50 BOPSU~ P 14:30 - 16:00 1.50 BOPSU P 16:00 - 17:00 I 1.001 PULL I P 17:00 - 18:30 1.501 PULL P 18:30 - 19:00 I 0.501 PULL I P 19:00 - 21:00 2.00 I PULL P 21:00 - 21:30 0.50 PULL P 21:30 - 00:00 2.50 PULL P 2/4/2009 100:00 - 05:00 5.00 PULL P 05:00 - 09:30 I 4.501 PULL I P 09:30 - 11:30 I 2.00 I CLEAN I P 11:30 - 19:00 I 7.501 CLEAN I P 19:00 - 20:00 1.00 ~ W HSUR P Page 2 of 6 ~ Spud Date: 8/12/1993 End: Description of Operations DECOMP and Doyon toolpusher witness all tests. AOGCC rep John Crisp waived witness of test. DECOMP Wait on BP WSL change out. Prep pipe shed for loading DP. Troubleshooting boiler issues. DECOMP Continue to perform initial BOP test. DECOMP RD test equipment. Blow down all lines used during test. Pull TWC and well is on a very slight vacuum, then quits. Fluid level is static. DECOMP PJSM to pull hanger to rig floor, Discuss the operation of the control line spooler and use of face shields while releasing the control line clamps or cutting SS bands. RIH with landing joint and M/U to hanger. BOLDSs. P/U on hanger and it breaks free at 115K-Ibs, then hanger comes to the rig floor at 120K-Ibs. DECOMP Pressure test Mud Pump #2 to 3500-psi. Circulate Bottoms up, 8-BPM at 1000-psi. Get clean seawater across shakers. Monitor well -Static. RU power tongs. DECOMP Terminate control lines. LD landing jt, XO and Tbg hanger. Blow down Top Drive. MU 3-1/2" TDS XO to TIW valve. Change out Elevators to handle 3-1/2" Tbg. DECOMP POH and LD 3-1/2" 9.2# L-80 TDS tubing. Remove rubber/ SS control line clamps and spool up dual encapsulated control lines. Recover 31-rubber clamps and 3-SS bands of a reported total of 31-rubber clamps. DECOMP RD Schlumberger Control Line Spooling unit. Clear rig floor of spooling unit and tubing hanger. DECOMP POH and LD 3-1/2" 9.2# L80 TDS tubing. At 0000-hrs, 1-SSSV, 1-GLM and 150-jts of tubing recovered. DECOMP POH and LD 3-1/2" 9.2# L80 TDS tubing. At 0100-hrs, 195-jts of tubing LD. At 0230-hrs, 255-jts of tubing LD. At 0345-hrs, 300-jts of tubing LD. At 0445-hrs, LD 335-jts of tubing. Recovered a total of 1-SSSV, 2-GLMs, 343-jts of 3-1/2" tubing and 1-cut jt. Cut jt is flared to 4-1/16" and is 16.19' long. The first 180-joints were in very good shape with no evidence of pitting or corroded threads. The remainder showed some build-up of scale on the exterior, but no obvious corrosion areas. DECOMP RD all 3-1/2" handling equipment. Clean and clear Rig floor. Continue strapping 4" DP in pipe shed. Load BHA for 3-1/2" dress-off run. Use steam wand to warm up BHA components. Floorhand was using goggles and face shield while operating the steam wand. DECOMP PJSM in Dog House with crew, Baker fisherman, and WSL. P/U and M/U Dress-off BHA: 6" x 3-9/16" Dress-off Shoe, 2-ea Extensions, 3-1/2" Tubing Dress-off Mill, Boot Basket, 7" Casing Scraper, Bumper sub, Oil Jars, and Pump-out sub. DECOMP RIH with BHA on DP from Pipe Shed. Joint # 60 at 1315-hours. #75 ~ 1330-hrs. #100 ~ 1415-hrs. #125 ~ 1500-hrs. #165 ~ 1600-hrs. #180 ~ 1615-hrs. Run a total of 300-jts to a depth of 9,722'. DECOMP PU HES 9-5/8" RTTS and running tool. Steam RTTS to warm up prior to RIH. RIH 1-std and set per HES tool reo at 100' below the rig floor, leaving the dress off shoe at 9818'. Release from RTTS. Stand back 1-std of 4" DP in derrick. Printed: 2/16/2009 11:53:54 AM • BP EXPLORATION Page 3 of 6 Operations Summary Report Legal Well Name: C-41 Common Well Name: C-41 Spud Date: 8/12/1993 Event Name: WORKOVER Start: 12/16/2008 End: Contractor Name: DOYON DRILLING INC. Rig Release: 2/8/2009 Rig Name: DOYON 16 Rig Number: Date From - To Hours Task Code NPT Phase , Description of Operations 2/4/2009 20:00 - 20:30 0.50 WHSUR P DECOMP - - - t. While testing, hold PJSM with rig crew and BP WSL on ND tubing spool and casing packoff change out. Discuss hazards of working with overhead loads, using hammer wrenches, proper rigging and assign people to positions. RD test equipment and blow down all lines. Two barriers for ND are 1) W RP at 10,870' and 2) Tested RTTS at 100'. 20:30 - 22:00 1.50 WHSUR P DECOMP Pull wear ring. Drain BOP stack. Remove riser and turnbuckles. ND BOP stack and stand back on BOP pedestal in cellar. ND Tubing spool by breaking nuts on studs between 13-5/8" x 11"spacer spool and tubing spool and between tubing spool and casing spool. Leave 4-studs between both breaks. RU to pull spacer spool and tubing spool together using blocks and 4-part sling. Confirm 0-psi on OA. BOLDS on casing spool. 22:00 - 23:00 1.00 WHSUR P DECOMP Pull spacer spool and tubing spool using blocks. 9-5/8" casing packoff came out with tubing spool. Stand tubing spool back in cellar. 23:00 - 23:30 0.50 WHSUR P DECOMP Clean casing hanger neck and ring groove on top of csg spool. Install new 9-5/8" casing packoff per FMC tech. FMC tech RILDS. 23:30 - 00:00 0.50 WHSUR P DECOMP PU new tubing spool using blocks and set on wellhead. NU new tubing spool. 2/5/2009 00:00 - 00:30 0.50 WHSUR P DECOMP Continue to NU new tubing spool. 00:30 - 01:30 1.00 WHSUR P DECOMP FMC wellhead tech RU test equipment and test new 9-5/8" packoff to 5000-psi for 30-minutes. Good Test. RD test equipment. 01:30 - 03:00 1.50 BOPSU P DECOMP NU BOP stack with 13-5/8" x 13-5/8" s acer s ool. 03:00 - 03:30 0.50 BOPSU P DECOMP Set test plug, RU test equipment and test BOP break. Test to 250-psi low and 3500-psi for 5-charted minutes per test. Test witnessed by BP WSL and Doyon tourpusher. Notified AOGCC rep John Crisp of BOP break test at 2300-hrs on 2/4/2009 and he waived witness. 03:30 - 04:00 0.50 WHSUR P DECOMP RD test equipment. Install wear ring. 04:00 - 04:30 0.50 WHSUR P DECOMP PU RTTS runnin tool. RIH on 1-std of 4" DP from derrick. Engage & release RTTS. Allow elements to relax. POH and LD RTTS and runnin tool. 04:30 - 06:00 1.50 CLEAN P DECOMP RIH with Dress off BHA on 4" DP from pipe shed. Did not "see" 7" liner top. Soft tao tubina stub at 10.788'.. 06:00 - 06:30 0.50 CLEAN P DECOMP P/U to get parameters: Up wt 198K-Ibs, Down wt 146K-Ibs, Rot wt 172K-Ibs at 40-RPM, 7-1/2-BPM at 1100-psi and 6K-Ib-ft. I RIH n - stub Jet-cut li then continue RIH to inside mill to com lete the dress-off run er B k r ' P/U to take weight off the mill and prepare to pump HiVis sweep all the way around. 06:30 - 07:30 1.00 CLEAN P DECOMP Circulate 20-Bbl HiVis sweep all the way around, 8-BPM at 1150-psi. Find some metal cuttings on the ditch Magnets. 07:30 - 08:00 0.50 CLEAN P DECOMP P/U above tubing stub; RIH to soft tag to verify tag depth of 10,788'. P/U above tubing stub, start pump and bring on Top Drive to rotate and RBIH to ensure the stub is clean. Prepare to POH and UD Drill Pipe and BHA. Blow Down Top Drive and lines. FMC technicians inspect and quickly re-torque one leaking LDS on the new tubing spool, then held a short Printed: 2/16/2009 11:53:54 AM • BP EXPLORATION Page 4 of 6 Operations Summary Report Legal Well Name: C-41 Common Well Name: C-41 Spud Date: 8/12/1993 Event Name: WORKOVER Start: 12/16/2008 End: Contractor Name: DOYON DRILLING INC. Rig Release: 2/8/2009 Rig Name: DOYON 16 Rig Number: Date ~ From - To Hours Task Code i NPT ~ Phase 2/5/2009 107:30 - 08:00 0.501 CLEAN P 08:00 - 09:00 1.00 CLEAN 09:00 - 20:30 11.50 BUNCO 20:30 - 00:00 3.50 CLEAN P 2/6/2009 00:00 - 05:00 5.00 CLEAN P 05:00 - 06:00 1.00 CLEAN 06:00 - 06:30 0.50 CLEAN P 06:30 - 08:30 2.00 BUNCO 08:30 - 23:30 I 15.00 23:30 - 00:00 I 0.50 2/7/2009 00:00 - 02:30 ~ 2.50 02:30 - 03:00 I 0.50 Description of Operations DECOMP instruction course for the crew to describe the proper procedure for RILDSs for this new design LDS. DECOMP POH and UD 32-joints of DP until clear of the top of the 7" Liner Top at -9949'. RUNCMP Load Pipe Shed with 355-joints of 3-1/2", 9.2#, 13Cr80, VamTop tubing. Warm up each layer of tubing, then rabbit using portable vacuum cleaner and suction hose extender. Strap "Threads-On". Use hole fill pump to circulate across the top of the stack. No wellbore fluid losses or gains to this point from the inception of the C-41A RWO program. Perform Draw-works inspection and maintenance. DECOMP POH with Dress off BHA. LD 4" DP to pipe shed. DECOMP POH with Dress off BHA. LD 4" DP to pipe shed. At 0030-hrs, 120-jts out. At 0230-hrs, 200-jts out. At 0330-hrs, 246-jts LD. At 0430-hrs, 275-jts LD. DECOMP LD Dress off BHA. DECOMP Clear and clean Rig Floor. RUNCMP R/U 3-1/2" tubing handling equipment. Verify IDs and ODs of completion jewelry with Wells support slickline leader. R/U Torque turn equipment. PJSM to RIH with new 3-1/2", 9.2#, 13Cr80, Vam Top tubing. RUNCMP RIH with 3-1/2", 9.2#, 13Cr80, Vam Top tubing. Torquing all connections to 2900-Ib-ft optimum, using Jet Lube Seal Guard pipe dope. BakerLok was applied to all connections below the Packer. Full joint #45 was RIH at 1315-hrs. Full jt #145 at 1730-hrs. GLM #1 is immediately after Jt #148. Full jt #188 was RIH at 1935-hrs. Full jt #226 RIH at 2100-hrs. GLM #2 is immediately after jt #226. Full Jt #276 at 2300-hrs. Full jt #283 RIH at 2330-hrs. RUNCMP Service rig, perform pre tour checks and inspect equipment. Replace hydraulic swivel on pipe skate. RUNCMP Continue RIH with 3-1/2", 9.2#, 13Cr80, Vam Top tubing. Torquing all connections to 2900-Ib-ft optimum, using Jet Lube Seal Guard pipe dope. RUNCMP PU Jt #335, 336 and 337. PU wt = 124K-Ibs, SO wt = 105K-Ibs. RIH and tag 3-1/2" tbg stub at 10,789', setting down 8K-Ibs. Continue RIH and tag first set of shear pins. at RIH and to second set of shear pins at 10,801'. Set down 9K-Ibs and observe second shear. Continue RIH and No Go with Unique Overshot at 10.803'. 03:00 - 03:30 0.50 BUNCO RUNCMP Calculate space out. LD Jt #335, 336, and 337. Decide to PU 9.807' pup jt and 9.827' (threads-off lengths) pup jt to park overshot at 10,799' with 10' of swallow. 03:30 - 04:30 1.00 BUNCO RUNCMP PU & MU 9.807' and 9.827' pup jts. RD compensator. MU landing jt. CO elevators. 04:30 - 05:30 1.00 BUNCO RUNCMP PU & MU FMC tubing hanger. Vac out BOP stack. MU landing jt to hanger. PU wt = 125K-Ibs, SO wt = 105K-Ibs. RIH and land hanger. FMC tech RILDSs. 05:30 - 11:00 5.50 BUNCO RUNCMP RU to pump packer fluid. PJSM with Rig crew and CH2MHill truck drivers. PT lines to 3500-psi. Reverse circulate total 710-Bbis total at 2.5-BPM at 550-psi. Lead with 75-Bbls 110E seawater, then 420-Bbls 110E seawater mixed with EC-1124A Printed: 2/16/2009 11:53:54 AM • BP EXPLORATION Legal Well Name: C-41 Operations Summary Report Page 5 of 6 Common Well Name: C-41 Spud Date: 8/12/1993 Event Name: WORKOVER Start: 12/16/2008 End: Contractor Name: DOYON DRILLING INC. Rig Release: 2/8/2009 Rig Name: DOYON 16 Rig Number: Date From - To Hours Task Code NPT Phase ~~, Description of Operations 2/7/2009 05:30 - 11:00 5.50 BUNCO RUNCMP Corrosion Inhibitor, and lastly, 215-Bbls of 110E seawater. 11:00 - 14:00 3.00 BUNCO RUNCMP R/D 1502 connection on top of landing joint. Drop 1-3/8" Ball/Rod at 1108-hours. M/U 1502 to top of landing joint and allow Ball/Rod to drop for 15-minutes. R/U chart recorder and test equipment to prepare to set packer and test tubing and casing. Pressure up on tubing and see a slow bleed off. Suck out stack and see the XO from Landing Joint to Hanger leaking at the Landing Joint connection. Break out Landing Joint and R/U to test under the Blinds. Pressure up tubing to 3500-psi for 30-minutes recorded for a solid test. Bleed off tubin to 1500-psi to prepare to PT annulus to 3500- si. Pressure u the IA to 3500-psi and hold rock-solid, recorded test for 30-minutes. Bleed down tubing quickly and the DCR-1 valve shears at -900-psi. Line up to pump through DCR-1 valve--pump both ways successfully. 14:00 - 15:00 1.00 BOPSU P RUNCMP P/U TWC and install in hanger. Test to 3500-psi_from above 15:00 - 16:30 1.50 BOPSU P RUNCMP In-cellar PJSM to N/D BOP. There are three barriers in the well: the tested TWC, the tested Ball/Rod in the RHC-M plug below the tested 7" x 3-1/2" packer, and the tested WRP in the original completion. Blow down all lines and #2 mud pump. Pull Riser. ND BOP stack and stand back on cellar pedestal. 16:30 - 18:00 1.50 WHSUR P RUNCMP Clean ring groove on tubing spool. Install SBMS Seal on hanger. Bring adapter flange into cellar and steam to heat up. NU Adapter flange. 18:00 - 19:00 1.00 WHSUR P RUNCMP NU 4-1/8" 5000# production tree. FMC tech test adapter flange and seals to 5000-psi for 30-minutes. Good test. 19:00 - 19:30 0.50 WHSUR P RUNCMP Tighten all bolts on tree. Install needle valves on wing valve. RU to test tree. 19:30 - 21:00 1.50 WHSUR P RUNCMP RU to test tree. Fill tree. Test tree to 5000-psi for 10-charted minutes. Change out pop-off on test pump. RD test equipment and drain tree. 21:00 - 21:30 0.50 WHSUR P RUNCMP PU DSM Lubricator and ressure test to 500- si. Good Te t. P I r. No pressure under TWC. LD lubricator and TWC. 21:30 - 22:00 0.50 WHSUR P RUNCMP RU to pump diesel freeze protection. Hold PJSM with LRS, rig crew and BP WSL. Discuss spill potential, positions of people, good communication and safety while working around high pressure lines. 22:00 - 23:30 1.50 WHSUR P RUNCMP Pressure test all lines to 3500-psi. LRS reverse in 155-bbls of 70-degree diesel at 2-BPM with 400-psi, initially. At end of circulation, reversing with 80-degree diesel at 2-BPM with 600-psi. 23:30 - 00:00 0.50 WHSUR P RUNCMP Tie IA into tree and allow diesel to U-tube. 2/8/2009 00:00 - 01:00 1.00 WHSUR P RUNCMP Continue to allow diesel freeze protection to U-tube. 01:00 - 01:30 0.50 WHSUR P RUNCMP Check pressures prior to setting BPV. IA pressure = 130-psi. Tbg pressure = 110-psi. Bleed back 2-bbls to LRS and pressures are zero. 01:30 - 02:00 0.50 WHSUR P RUNCMP Drain tree through wing valve in preparation for setting BPV. RD circulating equipment on the top of the tree. 02:00 - 02:30 0.50 WHSUR P RUNCMP PU D M I r' 02:30 - 03:00 0.50 WHSUR P RUNCMP RU test equipment. Use LRS to test BPV from below to 1000-psi for 10-minutes. Good test. Printed: 2/16/2009 11:53:54 AM BP EXPLORATION Page 6 of 6 Operations Summary Report Legal Well Name: C-41 Common Well Name: C-41 Spud Date: 8/12/1993 Event Name: WORKOVER Start: 12/16/2008 End: Contractor Name: DOYON DRILLING INC. Rig Release: 2/8/2009 Rig Name: DOYON 16 Rig Number: Date From - To Haurs Task Code NPT Phase ~, Description of Operations -- 2/8/2009 03:00 - 05:00 2.00 WHSUR P RUNCMP LRS suck back all lines. Blow down all lines. RD cellar manifold. Remove double IA valve. Install all tree jewelry. Ensure Tree, OA and IA pressures are all 0-psi. Secure well. "Rig Released at 0500-hrs on 2/8/09" Pnntetl: Z/16/2009 11:59:54 AM C-41A Well History Work (Post-Rip) Date Descri tion 02/Mar/2009 *** WELL SHUT IN ON ARRIVAL *** (post nvo) RAN 3-1/2" BL-BRUSH, 2.6" WIRE GRAB TO TOP OF LINER C 10889' SLM (no recovery of rubber elements) ATTEMPTED TO RUN A 1.72" O.D. WIRE GRAB INTO LINER W/ NO SUCCESS UNABLE TO ENTER LINER TOP @ 10889' SLM RAN 1.7" CENT, POCKET POKER/BRUSH TO 11140' SLM (stop due to deviation) (no recovery) ***NOTE: 1 & 1/2 RUBBER ELEMENTS FROM WRP STILL IN HOLE -UNABLE TO RECOVER*** *** WELL LEFT S/I ON DEPARTURE *** 01/Mar/2009 *** CONTINUED FROM 02/28/09 WSR *** (post rwo) RAN 3-1/2" BRUSH W/ 2.6" WIRE GRAB TO LINER TOP @ 10887' SLM (recovered half of one element) RIGGED DOWN EQUIPMENT AND MOVED TO SHOP DUE TO HIGH WIND ****WILL RETURN TO FINISH FISHING OUT RUBBER ELEMENTS AT LATER DATE****** ***LEFT WELL SHUT-IN NOTIFIED PAD OPERATOR OF WELL STATUS*** 28/Feb/2009 ***CONTINUED FROM 02/28/09 *** (post nvo) RAN 5' x 2.25" DRIVE DOWN. BAILER TO 10838' SLM, RECOVERED 1 GALLON OF SLUGGITS RAN 10' x 2.5" P. BAILER, WASH OVER BTM TO 10840' SLM (RECOVERED 1 QUART OF SLUGGIT, MARKS FROM WRP INSIDE BAILER BOTTOMI RAN 3-1/2"WRP PULLING TOOL (no collet), TO 10841' SLM W/TATTLE TAILS PINS (PINS BENT INDICATING GETTING OVER WRP & EQUALIZED) PULLED 3-1/2"WRP FROM 10841' SLM TWO RUBBER ELEMENTS MISSING) CURRENTLY RUNNING W/ 3 1/2 BRUSH, WIRE GRAB *** CONTINUED ON 03/01/09 WSR *** 27/Feb/2009 *** CONTINUED FROM 02/27/09 WEATHER TICKET *** (post rwo) RAN 10' OF 2.25" AND 2.50" PUMP BAILERS TO 10830' SLM, ABLE TO WORK TO 10836' SLM RECOVERED 4 GALLONS OF FORMATION SAND MIXED W/ PLASTIC COATED TUBING AND SLU GIT LAYING DOWN EQUIPMENT DUE TO HIGH WINDS *** CONTINUED ON 02/27/09 *** 26/Feb/2009 *** CONT JOB FROM 02/25/09 WSR *** (post rwo) RAN 10' x 2.25" PUMP BAILER TO 10813' SLM, ABLE TO WORK TO 10822' SLM. RECOVERED 5 GALLONS OF WHAT APPEARS TO BE FORMATION SAND. PULLED 3-1/2" JUNK CATCHER FROM 10821' SLM.(RECOVERED METAL PIECES & BRASS *** LAY DOWN EQUIP. DUE TO HIGH WINDS *** 25/Feb/2009 *** CONT WSR FROM 02/24/09 *** (post nvo) PULLED RK-DGLV FROM STA#1 @ 5976' SLM # RKP- DCR FROM STA#2 @ 3493' SLM SET GENERIC GASLIFT DESIGN IN STA.'S # 2 & 1 PULLED 3-1/2" RHC-M PLUG BODY FROM X-NIPPLE Q 10735' SLM ATTEMPTED TO PULL 3-1/2"JUNK CATCHER...UNABLE TO WORK PAST 10790' SLM. RAN 2.76" SW EDGE, 2.75" LIB TO 10790' SLM. (IMPRESSION OF FILL) CURRENTLY ON SIXTH RUN W/ 10' x 2.25" PUMP BAILER, STARTED BAILING @ 10790' SLM CURRENTLY @ 10809' SLM RECOVERED APPR X A TO BE FORMATION SAND *** CONTINUED ON 02/26/09 WSR *** 24/Feb/2009 ***WELL SHUT IN ON ARRIVAL*** (post rwo) PULLED BALL & ROD FROM RHC @ 10.728' MD. CURRENTLY RUNNING INTO PULL DGLV FROM STA# 1 ***CONT WSR ON 2/25/09*** 13/Feb/2009 T/I/O = 0/0/0 Pulled 4" ciw H lu to C~ 102" used 1-2" ext no roblems 08/Feb/2009 Pulled 4"ciw twc and set 4" bpv ciw used 1-2" ext and tap at 102" for ria to T/I/O Vac/0/0 _ move off no roblems 02/Feb/2009 T/I/0=0/0/0; Pulled 4-1/16" CIW "H" BPV #152 thru tree for Doyon 16 post move on well; 1 2' ext. used, to ed C~ 98"; ***Com lete*** Best/Fraker 03/06/08 ~7~'lll~mb~s~~~i~ ~~ kk ttttt N0.4621 Alaska Data & Consulting Services ~~~~~' JYt~~ ~ ~ ~uU~~ Company: State of Alaska 2525 Gambell Street, Suite 400 Alaska Oil & Gas Cons Comm Anchorage, AK 99503-2838 Attn: Christine Mahnken ATTN: Beth 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: P.Bay,Pt.Mac,Milne Pt,Orion,Lisburne Wpll .Inh # 1 nn Desrrintinn Date BL Colnr CD C-41A 12021141 MEM LDL _ 02/25/08 1 1 MPS-01A 11970714 SCMT ~} _ C 02!21/08- 1 1 P1-06 11975757 PROD PROFILE ~ 03/02/08 1 1 P1-05 11998992 PROD PROFILE ~ 02/29/08 1 1 Pi-06 11975757 SCMT (qj ~• ~' 03/02/08 1 1 09-23A 12045070 USIT ~- C ~ 03/02/08 1 1 LS-34 12057596 PROD PROFILE ~ ~ 02/28/08 1 1 W-40 11970816 PRODUCTION LOG -j 03/04/08 1 1 15-04B 12005202 MCNL '~' Q- t C 12/28/07 1 1 C-35B 12021139 MCNL - t 01/26/08 1 1 X-20A 11661178 CH EDIT PDC GR (MEM CORRELATION) _I 10/26/07 ate- 1 L-219 12017479 CH EDIT PDC GR (IBC) - [ /(p 01/02/08 1 NLtASt AGKIVUWLtUIat FitlalYl t3;Y SlIa IVIIV G'°HIVV li Yr lt,,U.Fi12{INCi';UNt I:UYY tHGri I V: BP Exploration (Alaska) Inc. - Petrotechnical Data Center LR2-1 900 E. Benson Blvd. Anchorage, Alaska 99508 6 i ~ i~( ;'~~~~}ta Date Delivered: ,,~, ~ , ;;, Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth Received by: • • t3 ~-c~ ~~~~ ~v~ ~ STATE OF ALASKA ~~6~~ ~~r ALASKA OfL AND GAS CONSERVATION COMMISSIC3~'`~ ~~ ~~~1~r REPORT OF SUNDRY WELL OPE~QIc~1~~S,, ,;;y~;~. r;~:,r,r,,;t.. 1. Operations Abandon ~ Repair Well ~ Plug Perforations ~ Stimulate~ ~,q;~;~~~r;,~er ~ PATCH TUBING Performed: Alter Casing ~ Pull Tubing ~ Perforate New Pool ~ Waiver ~ Time Extension ~ Change Approved Program ~ Operat. Shutdown~ Perforate [] Re-enter Suspended Well~ 2. Operator BP Exploration (Alaska), Inc. 4. Current Well Class: 5. Permit to Drill Number~ Name: Devefopment ~' Exploratory ~ 2oa-~aso ~ 3. Address: P.O. Box 196612 Stratigraphic ~ $efVIC@ ~ 6. API Number: Anchorage, AK 99519-6612 50-029-22385-01-00 ` 7. KB Elevation (ft): 9. Well Name and Number: 72.6 KB T ~ PBU C-41A ~ 8. Property Designation: 10. Field/Pool(s): ADLO-028305 ~ PRUDHOE BAY Field/ PRUDHOE OIL Pool 11. Present Well Condition Summary: Total Depth measured 13513 ~ feet Plugs (measured) None true vertical 9028.85 ~ feet Junk (measured) None Effective Depth measured 13499 ~ feet true vertical 9029.47 , feet Casing Length Size MD TVD Burst Collapse Conductor 80 20"91.5# H-40 35 - 115 35 - 115 1490 470 Surface 3184 13-3/8" 68# L-80 35 - 3219 35 - 3215.24 4930 2270 Liner 1448 7" 29# NT-80 9949 - 11397 8331.32 - 9019.53 8160 7020 LINER 2591 2-3/8" 4.7# L-80 10922 - 13513 8916.5 - 9028.85 11200 11780 Production 10083 9-5/8" 47# NT-80 34 - 10117 34 - 8443 6870 4760 Liner 193 4-1/2" 13.5# L-80 11309 - 11502 9019 - 9018 9020 8450 Perforation depth: Measured depth: 11773 - 13493 ;,+~p~o~ ~~5~{t~\ ~ True Vertical depth: 9009 - 9030 _ _ ~~ Yt~ Tubing: (size, grade, and measured depth) 3-1/2" 9.2# L-80 Surface - 10941' Packers and SSSV (type and measured depth) KB Liner Top Packer 10896 4-1/2" Baker SABL-3 Packer 10921 4-1/2" Baker FB-2 Packer 11309 0 0 12. Stimulation or cement squeeze summary: .ty. i Intervals treated (measured): " ~"' ~ ~~ : ~ , ': ~ ;1~ i~'C; J; Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Rsessure Tubing pressure Prior to well operation: 548 27518 9 0 443 Subsequent to operation: SHUT-IN 0 0 0 0 14. Attachments: 15. Well Class after oroposed work~ Copies of Logs and Surveys Run Exploratory l~ Development ~IG Service ~ Daily Report of Well Operations X 16. Weil 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 I Title Data Management Engineer Signature Phone 564-4944 Date 8/13/2007 Form 10-404 Re~iised 04/2006 ~~ ~ ~ ~ ~`q ~ 6s~ ~ '~ ~ ~~ '"'~C ~} h fi'~~4 ~~~~ Submit Original Only ~ I ~ ~- ~~..__ .~, C-41A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 8/11/2007:***TUBING PATCH"'`'` ~`WELL SI UPON ARRIVAL. INITIAL WHP 300/50/0 `:SET WFD LOWER PATCH ASSEMBLY, MOE 9117', TOP AT 9114.73', MIN ID ;1.80". TAGGED AFTER SET. =CORRELATED TO SWS LDL 80 FPM PASS DATED 6/19/07. WELL SHUT IN ''' FINAL WHP 300/50/0 '! """JOB COMPLETED""*" FLUIDS PUMPED BBLS 1 DIESEL 1 TOTAL • • ~~-,~ -__ MICROFILMED 03/01/2008 DO NOT PLACE »:-~ :~.:, r„~.- ,~,~_ ~,:. ANY NEW MATERIAL UNDER THIS PAGE F:\LaserFiche\CvrPgs_Inserts\Microfilm_Marker.doc C-4IA (PTD #2041880) Classified as Problem Well . AII- Well C-41A (PTD #2041880) has sustained casing pressure on the IA and has been classified as a ,,/ Problem Well. A TIFL failed on 05/11/06. TIOs on 05/12/06 are 2450/2180/0. The plan forward for this well is as follows: 1. S: Install DGL Vs 2. D: Re-TIFL Attached is a wellbore schematic. Please call with any questions. «C-41A.pdf» Thank you - Jack L. Winslow (for Andrea Hughes) Well Integrity Engineer office - 659-5102 pager - 659-5100, 1154 :'¡';ANNED MAY 2 9 2007 Content-Description: C-4lA.pdf C-41A.pdf Content-Type: application/octet-stream Content-Encoding: base64 fco~ CúSI'J - c¡ ':% 4 ¡'Vi - 00 4(#- , -'> ,~p": (:/376 PSI J-f+ ~ Z lßO~'1 -;> '3 (. 7'2c ~(? .) ¡L F Co t1q-z..- I of 1 5/21/2007 11 :42 AM 1REE = 4-112" -5M CIW SAFETY NOTES: TOP OFC8VlENTUNKNOWN. WELLHEA D = FMC C-41A VOLUMES PUMPED & CTD PRESS. TEST ACïUATOR= BAKER SUOOESTS PERFS IN 7" LNR ARE UNCOVERED. KB. ELBI = 72.6' BF. ELBI = 34' KOP= 4522' I 1-13-1/2" SSSV OTIS LANDING NIP, D - 2.750" I Wax Angle = 104 @ 11564' 2014' Datum MO = 10837' . Datum lVD= 8800' SS 113-3/8" CSG, 68#, L-80, ID = 12.415" 3219' ~ .. GAS LFT fv'Ið.NDRELS ST MD lVD DEV lYÆ VLV LATCH PORT ()6. TE L 2 4205 4165 6 CAMCO DOME RK 16 1 2/1 0104 1 7035 6479 51 CAMCO SO RK 20 12/10104 TOPOF7"LNR H 9949' I III . 9-5/8"CSG,47#, NT-80, ID-8.681" I 10117' 1-----.4 ... 10876' 143-1/2" NIP, SWS, ID = 2.750" . I ¡...--- 10909' 3-1/2" BKR KB LNR TOP PKR, ID = 1 .81 Z' I ~ :8 I--' ~v-t 10921' 1- 7" X3-1/Z' BAKERSABLI-3 A<R, Minimum ID = 1.74" @ 10932' I ID = 3.938" (BEHND PIPE) MILLED AL BULLNOSE & LOe SEAL ASSY V 10932' 1- LOCSEALASSY, AL BULLNOSE, & IIIILLED I ,...... OUT SHOE, MLLED D = 1.74" (06/19/05) 10935' -12.70" BKRDEPLOY SLV, ID=2.250" I . . 1093T -l3-1/2" SWS NIP, ID = 2.725" (BEHIND PIPE) I - . 3-1/2"TBG, 9.2#, L-80, .0087 bpf, ID= 2.992" 10941' --- 10941' -13-1/2" TBG TAIL, WLEG, ID - 2.992" (BEHND PIPE) I 1094T -1 ELMO TT LOGGED 08/08/97 I TOPOF 4-1/2" SLTDLNR 11309' I ~Ii' 11309' 7" X4-1/Z' BAKER FB-2 PKR W/SEAL J ~~ BORE EXTENSION (BEHND PIPE) t\ I['~ .. r----t 11316' PORTED PUPJOINT (BB-IIND PIPE) I 7" LNR, 29#, NT-80, .0371 bpf, ID - 6.184" 11397' I ~ TOP OF M ILLOUT WINDOW (C-41A) PERFORATION SUI'vtv'IARY 11504' - 11509' REF LOG: MCNLlCCUGR ON 11/24/04 8 TIE-IN LOG: GEOLOGY PDC LOG Q 1150Z HTOPOF WHIPSTOCK I ANGLEATTOPÆRF: 89 @ 11773' i~AATAG' I\bte: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz DATE -2-1/2" 4 -11109- 11129 C 04/04/95 I -2-1/2" 4 -11168- 11188 C 04/04/95 I 1-9/16" 6 11773- 17798 0 06/22/05 I 1-9/16" 6 11997 - 12047 0 06/22/05 I 11974' TWO PUP JOINTS J 1-9/16" 6 12338 - 12378 0 11/24/04 I I I I w /MARKERS 1-9/16" 6 12438 - 12468 0 11/24/04 I I 1-9/16" 6 12588 - 12738 0 11/24/04 I I 1-9/16" 6 12768 - 12838 0 11/24/04 I I 1-9/16" 6 12868 - 13198 0 11/24/04 I I I I 1-9/16" 6 13303 - 13493 0 11/24/04 -PERFS FROM ORIGINAL WELL - BB-IIND PIPE PBTD H 13499' I PBTD I 12432' 12-3/8" LNR,4.70#, L-80 STL, 13513' I --V I 4-1/Z' SL TD LNR, 13.5#, L-80, ID= 3.845" 12453' r .0039 bpf, D = 1.995" DATE RBI BY COMMENTS DATE REV BY COI'vtv'lENTS PRUDHOE BA Y UNIT 09/07/93 ORIGINAL COMPLETION WELL: C-41A 11/26/04 NORDIC1 CTD SIDETRACKCC-41A) PERMIT No: ~041880 12/11/04 KSB/TLH GLV CJO AA No: 50-029-22385-01 02/08/05 TL HITLH PERF CORRECTIONS SEC19, T11N, R14E, 1930' FNL &884' FEL 06/22/05 KEY/PJC ADPERFS & MILL (MN ID) 12/07/05 BMcNITL H DRL G DRA FT CORREC1l0 NS BP Exploration (Alaska) . . . WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn. : Librarian 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 November 13,2006 RE: MWD Formation Evaluation Logs: C-23B, C-41A_PB1, D-27A, G-30B, J-27A, K-04B. The technical data listed below is being submitted herewith. Please address any problems or concerns to the attention of: Rob Kalish, Sperry Drilling Services, 6900 Arctic Blvd., Anchorage, AK 99518 C-23B: Qó3 -óCoO ù ¡'-/LIL./ I Digital Log Images: 50-029-20775-02 1 CD Rom C-41A_PB1: bJOi.I-/~~ ti 1~t..ILI3 Digital Log Images: 50-029-22385-01, 70 D-27A: 8oS--/C)3 'ti i'-/J../¿(ö SCANNED FEB 0 1 2007 Digital Log Images: 50-029-21543-00 G-30B: QöS- -80?)' 11 L/LI3'1 Digital Log Images: 50-029-21613-02 1 CD Rom 1 CD Rom 1 CD Rom J-27A:db d -dOO 1;1: IL/LI375 Digital Log Images: 50-029-21733-01 K-04B: dOt) ~ J 53 ~ I L/¿/L! d. Digital Log Images: 50-029-21023-02 1 CD Rom 1 CD Rom -;:¡- ;2. ~ ~ c.-. DATA SUBMITTAL COMPLIANCE REPORT 11/27/2006 C j ./ð IJw~'t API f{J! ~~9-223B5-01-00 Permit to Drill 2041880 Well NamelNo. PRUDHOE BAY UNIT C-41A Operator BP EXPLORATION (ALASKA) INC MD 13513--- TVD 9029./ Completion Date 11/26/2004./ Current Status 1-01L UIC N Completion Status 1-01L REQUIRED INFORMATION Directional surv~s) ~_. . ---~---- ~-~ _.~_.~- Mud Log No Samples No ---~---~-~-------- ~------~-_.- --~ DATA INFORMATION Types Electric or Other Logs Run: MWD 1 NGP GR 1 ROP, MGR 1 CCL 1 CNL Well Log Information: (data taken from Logs Portion of Master Well Data Maint Electr Digital Dataset Log Log Run Interval OH 1 Med/Frmt Number Name Scale Media No Start Stop CH Received Comments D Asc Directional Survey 12174 13513 12/21/2004 MWD ---------¡ I i Directional Survey 12147 13513 12/21/2004 MWD I I I Directional Survey 11493 13088 12/21/2004 MWD PB1 I D Asc I I I / Directional Survey 11493 13088 12/21/2004 MWD PB1 I í ~g Neutron 2 Blu 10686 13481 2/3/2005 memcnllmem grl ccllnut ! I ~C Lis 13483 Cement Evaluation 10686 13481 Case Memory Cement Bond Log I I plus Graphics I I I I GR/CCLlSCMT 23 Dee I I I 2005 I I Log Cement Evaluation 5 Blu 10686 13481 Case Memory Cement Bond Log I GRlCCLlSCMT 23 Dee I 2005 I œe/"D Lis 13798 Gamma Ray 11013 13482 Open 3/9/2006 GR ROP I I w-. 13798 I LIS Verification 11013 13482 Open 3/9/2006 GR ROP I I ~ _li' 13799 Gamma Ray 11013 13055 Open 319/2006 PB 1 GR ROP I 13799 LIS Verification 11013 13055 Open 3/9/2006 PB 1 GR ROP I ~-_.- ~~----~---~-_._-"-~~--~--~--~-~-- _.~_.__.__~_._.__------.J Well CoreslSamples Information: Name Interval Start Stop Sample Set Number Comments Sent Received . . DATA SUBMITTAL COMPLIANCE REPORT 11/27/2006 Permitto Drill 2041880 Well NamelNo. PRUDHOE BAY UNIT C-41A Operator BP EXPLORATION (ALASKA) INC API No. 50-029-22385-01-00 MD 13513 TVD 9029 Completion Date 11/26/2004 Completion Status 1-01L UIC N Current Status 1-01L ADDITIONAL INFORMATION Well Cored? ~ Chips Received? ~ Daily History Received? ~N 2JIN Formation Tops Analysis Received? h1v- Comments: Compllan,. R.vl....;d~~~- - --- -~ . c Date: _ 8~~ 6-~ . . · - WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Ceresa Tolley 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 February 17,2006 RE: MWD Formation Evaluation Logs: C-41A, AJe-MW-3385029 1 LDWG formatted Disc with verification listing. API#: 50-029-22385-01 l)lq~ C/I PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Services Attn: Rob Kalish 6900 Arctic Blvd. Anchorage, Alaska 99518 BP Exploration (Alaska) Inc. Petrotechnical Data Center MB33 900 E. Benson Blvd. Anchorage, Alaska 99508 Date: q' ~" µðJ1J Signed: ~ ~U{- f~ 'f Ft(~ · e WELL LOG TRANSMITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Ceresa Tolley 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 February 17,2006 RE: MWD Formation Evaluation Logs: C-41A PBl, AK-MW-3385029 1 LDWG fonnatted Disc with verification listing. API#: 50-029-22385-70 ;¿:, , 7 I q \. Ii PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COpy OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Services Attn: Rob Kalish 6900 Arctic Blvd. Anchorage, Alaska 99518 BP Exploration (Alaska) Inc. Petrotechnical Data Center MB33 900 E. Benson Blvd. Anchorage, Alaska 99508 a 111 J Date: t It#l1lttt ~ Signed: ?Li ß/iJ ?()vf-(~8 F;(~ ALAS!IL AND ~::;~g~S~~;::'ON COJtSION ~~~~t~;b REPORT OF SUNDRY WELL OPERATIßNSoH & ,Gas Cons, COtmnit. 1. Operations Performed: AnchorafUJ.. SIC:r AbandonD Repair WellO Plug PerforationsD Stimulate 0 Othel'LJ Alter CasingD Pull TubingD Perforate New PoolD WaiverD Time ExtensionD Change Approved ProgramO Operation ShutdownD Perforate ŒJ Re-enter Suspended WellO 2. Operator Name: 3. Address: BP Exploration (Alaska), Inc. 4. Current Well Class: Development 00 ExploratoryD 5. Permit to Drill Number: . 204-1880 6. API Number 50-029-22385-01-00 P.O. Box 196612 Anchorage, Ak 99519-6612 7. KB Elevation (ft): 72.60 8. Property Designation: ADL-028305 11. Present Well Condition Summary: Stratigraphic 0 ServiceD 9. Well Name and Number: C-41A 10. Field/Pool(s): Prudhoe Bay Field I Prudhoe Oil Pool Total Depth measured 13513 feet true vertical 9028.9 feet Plugs (measured) None Effective Depth measured 13499 feet Junk (measured) None true vertical 9029.5 feet Casing Length Size MD TVD Burst Collapse Conductor 80 20" 91.5# H-40 35 115 35.0 115.0 1490 470 Surface 3184 13-3/8" 68# L-80 35 - 3219 35.0 - 3215.2 5020 2270 Production 10083 9-5/8" 47# NT-80 34 - 10117 34.0 - 8442.5 6870 4760 liner 1448 7" 29# NT-80 9949 - 11397 8331.3 - 9019.5 8160 7020 liner 193 4-1/2" 13.5# L-80 11309 - 11502 9019.0 - 9017.8 9020 8540 liner Top 32 KB Seal Assembly 10900 - 10932 8905.8 - 8921.2 liner 2591 2-3/8 Inch 4.7 Lb L-8C 10922 - 13513 8916.5 - 9028.9 11200 11780 Measured depth: 11773 -11798,11997 -12022, 12022 -12047, 12192 -12242, 12338 -12378, 12438 -12468,12588 -12738 12768 - 12838, 12868 - 13198, 13303 - 13493 True vertical depth: 9009 - 9003, 9001 - 9005, 9003 - 9018, 9015 - 9024, 9023 - 9027, 9026 - 9034, 9031 - 9031 9033 - 9031, 9030 - 9033,9034 - 9030 Tubing ( size, grade, and measured depth): 4-1/2" 12.6# L-80 3-1/2" 9.3# L-80 4-1/2" 12.6# L-80 3-1/2" 9.3# L-80 KB liner Top Packer 4-1/2" Baker SABL-3 Packer 4-1/2" Baker FB-2 Packer 3-1/2" Otis SSV Nipple Packers & SSSV (type & measured depth): @ 33 @ 37 @ 10918 @ 10925 @ 10896 @ 10921 @ 11309 @ 2014 37 10918 10925 10942 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: RBDMS BFL AUG 0 4 2005 13 Prior to well operation: Subsequent to operation: Oil-Bbl SHUT-IN 1273 Representative Daily Averaoe Production or Iniection Data Gas-Me! Waler-Bbl Casing Pressure Tubing Pressure 14236 14 215 14. Attachments: ~ 15. Well Class after proposed work: ExploratoryD 16. Well Status after proposed work: OilŒJ GasD DevelopmentŒ ServiceD Copies of Logs and Surveys run _ Daily Report of Well Operations_ WAG 0 GINJD WINJD WDSPLD Prepared by DeWayne R. Schnorr (907) 564-5174. SUndry Number or N/A if C.O. Exempt: NIA 17" I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact DeWayne R. Schnorr Printed Name DeWayne R. Schnorr Signature A1I~ A¿Jr~ Title Petroleum Engineer t-'I ¡ \,..J 'Ph<tne 564-5174 Date 7/27105 Form 10-404 Revised 4/2004 . . C-41A DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS EVENT SUMMARY 06/20/05 CTU # 9 W/1.50" COIL. *** CONTINUE FROM 6/19/05 WSR.*** RIH WITH PDS LOGGING TOOLS. LOG UP FROM 12600' TO 10500' AT 40 FPM. FLAG PIPE AT 12205' AND 11990'. POOH. GET GOOD DATA, MAKE -6 FT CORRECTION TO TIE INTO SWS MCNL 24-NOV-04. MU GUN # 1 - 25' 1.56" 00 PJ1606 GUNS AND RIH. CORRECT TO FLAG AND PERFORATE FROM 12217'- 12242', POOH. ALL SHOTS FIRED. MU GUN # 2 - 25' 1.56" 00 PJ1606 GUNS AND RIH.. . *** JOB IN PROGRESS *** 06/21/05 CTU # 9 W/1.50" COIL. *** CONTINUE FROM 06/20/05 WSR. ***RIH WITH GUN #3. 25'- 1.56" 00 PJ-1606 GUNS. CORRECT TO FLAG AND PERFORATE FROM 12022'- 12047'. POOH. SURFACE, ALL SHOTS FIRED. CUT 150' FEET OF PIPE OFF. RU PDS 1-11/16" LOGGING TOOLS. SAW SLIGHT BOBBLE AT 10913' CTM WHILE RIH. RIH TO 12175' AND LOG UP AND FLAG AT 11950' AND 11725' CTM. FINISH LOGGING INTERVAL AND POOH. MAKE +13' CORRECTION TO TIE-IN TO 24-NOV-04 SWS MCNL. MU GUN #4. 25' -1.56" 00 PJ-1606 GUNS. CORRECT AT FLAG AND RIH TO TOP SHOT. SHOT INTERVAL 11997'-12022'. SHOT GUNS AND POOH. AT SURFACE, ALL SHOTS FIRED. MAKE UP GUN #5 AND RIH. 25' - 1.56" OD PJ-1606 GUNS. 06/22/05 CTU # 9 W/1.50" COIL. ***CONTINUE FROM 06/21/05 WSR.*** RIH WITH GUN #5. 1.56" 25' - 6 SPF. CORRECT TO FLAG AND SHOOT 11773'-11798'. POOH. AT SURFACE, ALL SHOTS FIRED. FREEZE PROTECTED TUBING WITH 50/50 METHANOL TO 2500'. COMPLETE RD. NOTIFIED PAD OPERATOR OF WELL STATUS AND NEED TO RU POORBOY GAS LIFT JUMPER TO KICKOFF WELL. ***JOB COMPLETED*** FLUIDS PUMPED BBLS 158 50/50 METHANOL WATER 107 1% KCL WATER 265 TOTAL Page 1 TREE = WELLHEAD = 1 ACTUATOR = KB. ELEV = BF. ELEV = KOP= Max Angle = 0,."..-...-....--...---..---.. Datum MO = ~""""'""'''''- --~-."..---..~--"~--.,,, Oatum1VO= 4-1/2" -5M CIW FMC BAKER 72.6' 34' . 10.3J32:'(il1.11.5(34.'. 10837' , u , " '" ..,. " 8800' S8 13-3/8" CSG, 68#, L-80,10= 12.415" H 3219' Minimum ::::: 1 @ CNL: 1 Out Skr 'KS' Seal Assy I TOP OF 7" LNR H 9-5/8" CSG, 47#, NT-80, 10 = 8.681" H ITOPOF 1<8 UNERTOPPAKER H 10909' I BOT DEPLOY SLEEVE. 6' LONG, 2.25" ID- I' 'llLeo t)UT 'K· B' SCA' .' ~r'y SHt,C In ... ·1 lOK" 1-1 ¡Vi [-.; \, ¡, J "I...-.-.>""\¡.~ M::::>0 v,~, L - , \) -, I 3-1/2" TBG, 9.2#, L-80, .0087 bpf, 10 = 2.992" H PERFORA TION SlHv1MA f~Y 1.56" '1.56" 1.56" 1.56" 125g(~ 1273<3 - i 2.838 '12868,· 13198 i 3303.. 13493 o o o o 6 v 6 TOP OF 4-1/2" SLTDLNR H 9949' 10117' 1089ß'} 10935' CNL: 10932' t 10941' I 06122/05 06/?2!Ob '11/24/0.4 11124/04 1 1/24/04 11124104 11/24/04 . 1 í2,l¡04 11309' 7" LNR, 29#, NT-80, .0371 bpf, 10 = 6.184" H 11397' 1 Prop. osed CTD ~ DRAFT . r- L "I. l---- ~NOTES: 2014' H 3-1/2" S8SV OTIS lANDING NIP, ID = 2.750" I ST MD 1V0 2 4205 4165 1 7035 6479 GAS LIFT MANDRElS DE\! TYÆ VLV LATCH 6 CAMeO DMY RK 51 CAMCO DMY RK PORT DA TE o 06/06/04 o 06/06/04 I ~ ----j 10876' H 3-1/2" SWS NIP, 10 = 2.750" 10935' (CNl: 10922') HTOPOF 2-3/8" LINER I ~---i 10921' H 7" X 3-1/2" BAKER SABLI-3 PKR, ID = 3.938" I - ----j 10937' H 3-1/2" SWS NIP, ID = 2.750" I L--j 10941' I-{ 3-1/2" TBG TAIL, WLEG, 10 = 2.992" I I 10947' H ELMO TT LOGGED 08/08/97 I data /~~~ ~ II ~ r---~ " MECHANiC/'lL WHlpSTOC;~-i 11502' WINDOW H 11504'" 11509' I RA PiP TAG H 11509' I I PBTD H 12432' r 4-1/2" SL TD LNR, 13.5#, L-80, 10 = 3.845" H 12453' I REF lOG MCNUCCLfGR OF 11/24/2004 TiE-IN lOG GFOL.OGY?DC LOG "NGLEATTOPÆRF 89.11" @¡1773' Note: Refor [0 Production DB for historical SIZE SPF iNTERVAL Opn!Sq¿ DATE 1.56" 6 1113 - 0 1.56" 6 12192 - 1),14;' 0 1.56H 6 12338..12378 0 'L5W' 12438 124ß8 0 DATE 09/07/93 09/17/01 05/03/02 07105/03 09/15/03 06/06/04 REV BY COMMENTS ORIGINAL COM PLETION RNlTP CORRECTIONS CMO/KK MAX ANGLE CORRECTION CMOrrLP KB aEV A TION CORRECTION CMO/TLP ÆRF ANGLE CORRECTION JLJ/KAK GLV CIO DATE 06/22/04 11i26ì04 02/08/05 06/22/05 I I I I ~ I I 11309' I- I- T' X 4-1/2" BAKER FB-2 PKR W/SEAL BOREEXTEN810N PORTED PUP JOINT I I 13499' (CNl: 13493') HF-BTD 11316' 11974' I-{ 2 MM'(i<ER 10' PUP JOiNTS I 2-3f8"UNERCEMENTED&PERFEDH 13513' I REV BY COMMENTS DFRlKAK CORRECTIONS JUE NORDIC>·1 CTD SIDETRA OK TLHlTlH ÆRF CORRECTIONS KEY /PJC ÆRFS PRUDHOE BA Y UNrr WaL: C-41 A ÆRMrr No: 204-188 API No: 50-029-22385-01 SEC 19, T11N, R14E, 1930' FNL & 884' Fa BP Exploration (Alaska) Schlumberger Alaska Data & Consulting Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 A TTN: Beth . Well Job # /~r ~ t7r:: C-29A 10715422 n'l-I'Jj E-25 10715423 ¡qð,ð2'j G-02A 10715424 1JH/ ¡w{ W-27A 10670031 "e-ð14 D-25Ar< 10854314 /qq-()(;lJ DS 15-25A' - "" 10715428 ~.Ø"'E-39A "\ 10715430 02·16B 10928597 11,- () l/ C-25A 10928598 :).o'l.:LÐ4 E-17A 10928602 J,t:4'1C{¡~ C-41A j 10928606 .~.-ÌJW.. ,- DS 07-30A 10715445 ~~fe,DS 15-3BA 10715446 i.lY{.itir 02-28A 10928607 !'i5-(~J-D-11A 10928608 ZDt{-2.{~ DS 05-24A 10928609 . (Prints~ only-Job not complete) v~oL( -(l'if!' 01/24/05 NO. 3318 Company: State of Alaska Alaska Oil & Gas Cons Comm Attn: Helen Warman 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Log Description Color Date Blueline Prints CD 08/20/04 1 08/21/04 1 08/23/04 1 08/24/04 1 08/27/04 1 09/11/04 1 09/13/04 1 10/02/04 1 10/03/04 1 10/30/04 1 11/24/04 1 12/09/04 1 12/11/04 1 12/11/04 1 12/16/04 1 12/22/04 1 MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL MCNL PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COpy EACH TO: BP Exploration (Alaska) Inc. Petrotechnical Data Center LR2-1 900 E. Benson Blvd, Anchorage, Alaska 99508 Date Delivered: ~ß¡0~ Alaska Data & Consulting Services 2525 Ga.mbell SIr. eel, Su~~IOO.... . í£~. . Anchorage, AK~950 1838. J / ATTNC ~... / 1 \ // Rece v§d bY:} .)¡ 'VI , {/ A STATE OF ALASKA _ ALAS~L AND GAS CONSERVATION CO~SION WELL COMPLETION OR RECOMPLETION REPORT AND LOG R·. E·C···-·· . ..... ··",fl . .. E,,\vED DEC 3 (12004 1a. Well Status: IS! Oil 0 Gas 0 Plugged 0 Abandoned 0 Suspended 0 WAG 20MC 25.105 20MC 25.110 o GINJ 0 WINJ 0 WDSPL No. of Completions 2. Operator Name: BP Exploration (Alaska) Inc. 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 4a. Location of Well (Governmental Section): Surface: 1930' SNL, 884' WEL, SEC. 19, T11 N, R14E, UM Top of Productive Horizon: 1393' SNL, 4054' EWL, SEC. 20, T11 N, R14E, UM Total Depth: 1921' SNL, 3226' EWL, SEC. 20, T11N, R14E, UM 4b. Location of Well (State Base Plane Coordinates): Surface: x- 664510 y- 5959291 Zone- ASP4 TPI: x- 669433 y- 5959939 Zone- ASP4 Total Depth: x- 668619 y- 5959392 Zone- ASP4 18. Directional Survey IS! Yes 0 No 21. Logs Run: MWD I NGP GR I Rap, MGR I CCL / CNL One Other 5. Date Comp., Susp., or Aband. 11/26/2004 6. Date Spudded 11/10/2004 7. Date T.D. Reached 11/21/2004 8. KB Elevation (ft): 72.6' 9. Plug Back Depth (MD+ TVD) 13499 + 9029 10. Total Depth (MD+TVD) 13513 + 9029 11. Depth where SSSV set (Nipple) 2014' MD 19. Water depth, if offshore NI A MSL CASING, LINER AND CEMENTING RECORD HOt.E SIZE 30" 16" CA$If',/G SETrINGDePTH MD $eTTINGDEPTH 1\10 SIZE WT.PERFT. Top BOTTOM Top BOTTOM 20" 91.5# H-40 32' 112' 32' 112' 13-3/8" 68# L-80 34' 3221' 34' 3217' 9-5/8" 47# NT80S 35' 10117' 35' 8442' 7" 29# L-80 9952' 11397' 8333' 9020' 4-1/2" 12.6# L-80 11306' 11502' 9019' 9018' 2-3/8" 4.7# L-80 10909' 13513' 8910' 9029' 23. Perforations open to Production (MD + TVD of To,e and 24 Bottom Interval, Size and Number; if none, state 'none"): . 1.56" Gun Diameter, 6 spf MD TVD 12338' - 12378' 9023' - 9024' 12438' - 12468' 9026' - 9027' 12588' - 12738' 9031' - 9034' 12768' - 12838' 9033' - 9031' 12868' - 13198' 9030' - 9033' 13303' - 13493' 9034' - 9030' 22. MD 26. Date First Production: December 15, 2004 Date of Test Hours Tested PRODUCTION FOR 12/29/2004 4 TEST PERIOD ... Flow Tubing Casing Pressure CALCULATED ...... Press. 200 650 24-HoUR RATE""'" 12-1/4" 8-112" 6" 3" SIZE 3-1/2", 9.3#, L-80 TVD 25. Alasks Oil & LGfnmís~I;¡-'1\ 'tJ Y\., 1 b. Well Class: IS! Development 0 Exploratory o Stratigraphic 0 Service 12. Permit to Drill Number 204-188 13. API Number 50- 029-22385-01-00 14. Well Name and Number: PBU C-41A 15. Field I Pool(s): Prudhoe Bay Field I Prudhoe Bay Pool Ft Ft 16. Property Designation: ADL 028305 17. Land Use Permit: 20. Thickness of Permafrost 1900' (Approx.) AMOUNT PULLED 267 sx Arcticset (Approx.) 868 sx PF 'E', 420 sx Class 'G' 778 sx Class 'G' 307 sx Class 'G' Isolated Uncemented Slotted Liner 48 sx Class 'G' DEPTH SET (MD) 10942' PACKER SET (MD) 10921 ' DEPTH INTERVAL (MD) 2500' AMOUNT & KIND OF MATERIAL USED Freeze Protect wi MeOH PRODUCTION TEST Method of Operation (Flowing, Gas Lift, etc.): Flowing Oll-Bsl GAs-McF WATER-Bsl 31 734 0.5 Oll-Bsl 187 GAs-McF 4,406 W A TER-Bsl 3 CHOKE SIZE I GAs-all RATIO 94.360 23,595 all GRAVITY-API (CORR) 26 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). _$!Jþmitçore chips; if none, state "none". N~ne [;1):: ~.' ¡ å/~!'?/;I ¡.;. VEfjjflJ,'D ~..' '~¡ :""~"'_~>~;~"~X Form 1 0-407 Revised 12/2003 o .~ (~ ; Iv I CONTINUED ON REVERSE SIDE RBDMS 8FL JAN 0 4 7ù05 I l I' iJ \l Y 28. GEOLOGIC MARKE_ 29. .ORMATION TESTS NAME MD TVD Include and briefly summarize test results. List intervals tested, and attach detailed supporting data as necessary. If no tests were conducted, state "None". Kicked off in Zone 1A (from C-41) and stayed in it to TD. None TDF I Zone 1A 11306' 9019' 30. List of Attachments: Summary of Daily Drilling Reports, Well Schematic Diagram, Surveys 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed Terrie HUbble~~ .~ Title Technical Assistant Date I ~ et:i (J(¡ PBU C-41A 204-188 Prepared By NamelNumber: Terrie Hubble, 564-4&28 Well Number Drilling Engineer: Sean McLaughlin, 564-4694 Permit No. I Approval No. INSTRUCTIONS GENERAL: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. ITEM 1a: Classification of Service Wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for Injection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. ITEM 4b: TPI (Top of Producing Interval). ITEM 8: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. ITEM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). ITEM 20: True vertical thickness. ITEM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). ITEM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). ITEM 27: If no cores taken, indicate "None". ITEM 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only . . Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 1118/2004 20:00 - 21 :00 1.00 MOB P PRE Finished RD off of E-18b 21 :00 - 22:00 1.00 MOB P PRE Held MO PJSM and moved off well to edge of pad 22:00 - 22:30 0.50 MOB P PRE Held PJSM with Security, Nordic BP on rig move to C-Pad 22:30 - 00:00 1.50 MOB P PRE Move rig from E-Pad to C-Pad (4.5 miles) 11/9/2004 00:00 - 01 :30 1.50 MOB P PRE MOB rig from E-18b to C-41a. Arrive on location at 0130 hrs 11-9-2004 01 :30 - 01 :45 0.25 MOB P PRE PJSM moving over well 01 :45 - 02:00 0.25 MOB P PRE Moved over well RIG ACCEPTED AT 0200 HRS, 11-9-2004 02:00 - 03:30 1.50 MOB P PRE RU, InstalllA/OA gauges, remove tree cap and install BOP's 03:30 - 07:30 4.00 BOPSUF P PRE PT BOP. Waived by Jeff Jones, AOGCC 07:30 - 08:15 0.75 WHIP N WAIT WEXIT Wait on KCL fluid and hands for whipstock setting. Opened well up, on a vac. 08:15 - 10:30 2.25 WHIP P WEXIT Bring tools to floor. Install 2 pip tags. MU BHA. Stab on injector. 10:30 - 12:45 2.25 WHIP P WEXIT RIH with WS at 100 fpm. SHT at 5000 It Qp = 1.25 bpm CTP = 500 psi. 12:45 - 13:30 0.75 WHIP P WEXIT Stopped at 10,080 It PUH logging for tie-in Corrected -21 It logging. 11,034 It to top of WS 13:30 - 13:45 0.25 WHIP P WEXIT RIH, put TOW at 11500 It 13:45 - 14:20 0.58 WHIP P WEXIT Orient TF to 23L Brought Qp to 2 bpm at 4800 psi, armed tool. Bleed P off and inc Qp and tool not armed. Orient TF around to 22L, inc Qp to 2 bpm to arm setting tool. Pp at 5000 psi at 1.9 bpm. Ordered out KCL slicker water 14:20 - 17:00 2.67 WHIP N WAIT WEXIT Wait on double slick KCL 17:00 - 17:40 0.67 WHIP P WEXIT Displace coil to doubleslick KCL. 2.5 bpm at 4950 psi. Bleed off. Pressure to 1900 psLto shear. TF 1 R. Set down.14K. PU 29K. Clean PU. Baker Gen II 4-1/2" Whipstock is set at 11,500' with a 1 RTF. RA tag is at 11,507'. 17:40 - 18:15 0.58 WHIP P WEXIT Stage trucks. Line up trucks to swap to Flo Pro. 18:15-19:30 1.25 WHIP P WEXIT Circulate used FloPro for milling window. 19:30 - 20:30 1.00 WHIP P WEXIT POH with Sperry I Baker whipstock setting BHA while circ. used FloPro to surface. 20:30 - 21 :00 0.50 WHIP P WEXIT Layout whipstock running BHA. 21:00-21:15 0.25 STWHIP P WEXIT SAFETY MEETING. Review procedure, hazards and mitigation for M/U Baker window milling BHA. 21:15 - 21:50 0.58 STWHIP P WEXIT M/U 2.74" Window milling BHA. 2.74" HC diamond window mill and string reamer, straight motor, circ sub, hyd disc, 2 jts PH6, check valves and CTC. OAL = 76.78'. 21 :50 - 00:00 2.17 STWHIP P WEXIT RIH with window milling BHA. Tag whipstock at 11 ,515'. Pickup and pump at 1.6 bpm, 3180 psi. Up wt = 25K, Dwn wt =13K. RI H and stall at 11,513'. Correct depth to 11,502'. Top of whipstock at 11,500'. Flag CT at 11,502'. Start milling window at 11,502'. 11/10/2004 00:00 - 01 :30 1.50 STWHIP P WEXIT Milled 2.74" window thru 4-1/2" Liner. 1.66 bpm, 3180-3600 psi, 1 fph, 2 K WOB. 1 stall at start of milling, Milled to 11,503.5' . 01 :30 - 03:30 2.00 STWHIP P WEXIT Milled 2.74" window, 1.66 bpm, 3180-3600 psi, 1 fph, 2 K Printed: 11/29/2004 11 :52:30 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: . Page 2 of 14 Spud Date: 8/12/1993 End: 11/26/2004 C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 11/10/2004 01 :30 - 03:30 2.00 STWHIP P WEXIT WOB. Milled to 11,505.2'. 03:30 - 05:00 1.50 STWHIP P WEXIT Milled 2.74" window, 1.66 bpm, 3180-3600 psi, 1 fph, 2-3 K WOB. Milled to 11,506.1 '. Stalled at 11,505.8.1 and 11506.1' Pick up and ream down clean. 05:00 - 10:00 5.00 STWHIP P WEXIT Milled 2.74" window, 1.66 bpm, 3180-3600 psi, 1 fph, 1-2 K WOB. Top of window at 11,502'. Bottom of window is at 11,507'. Milled formation to 11,517'. 1.7/1.8 bpm, 3360 psi, 2K WOB, PU. Ream window and dry tag OK. Start new mud down hole. 10:00 - 12:00 2.00 STWHIP P WEXIT POH 12:00 - 12:45 0.75 STWHIP P WEXIT LD window mill and string mill. 12:45 - 13:45 1.00 DRILL P PROD1 MU 1.9 deg motor build assembly with 2.70 x 3.0 HC Bicenter bit. 13:45 - 15:50 2.08 DRILL P PROD1 RIH to 5000' shallow hole test.OK. RIH to 11,040. 15:50 - 16:30 0.67 DRILL P PROD1 Tie - in correction. +14 CTD. 16:30 - 16:40 0.17 DRILL P PROD1 RIH tag at 11524, Orient 35R 16:40 - 18:00 1.33 DRILL P PROD1 Directionally drill 1.8/1.92 bpm @ 3580 psi, 3450 psi FS, UP Wt 26K, DN Wt 12K, WOB 2K, ROP 40, 18:00 - 20:15 2.25 DRILL P PROD1 Drilling build I turn section in Z1. 1.8/1.8 bpm, 3450 - 4200 psi, 130 R, 95 deg incl, 50 fph, Drilled to 11,660'. 20:15 - 20:30 0.25 DRILL P PROD1 Wiper trip to window. Clean hole. 20:30 - 20:50 0.33 DRILL P PROD1 Orient TF to 80R. 20:50 - 22:00 1.17 DRILL P PROD1 Drilling Z1 turn section, 1.8/1.8 bpm, 3200 - 4000 psi, 100R, 87 deg incl, 110 fph, Drilled to 11,764'. 22:00 - 22:20 0.33 DRILL P PROD1 Orient around to 75A. 22:20 - 23:00 0.67 DRILL P PROD1 Drilling Z1 turn section, 1.8/1.8 bpm, 3200 - 4000 psi, 75R, 87 deg incl, 110 fph, Drilled to 11,800'. 23:00 - 23:15 0.25 DRILL P PROD1 Wiper trip to window. Clean hole. 23: 15 - 00:00 0.75 DRILL P PROD1 Drilling Z1 turn section, 1.8/1.8 bpm, 3200 - 4000 psi, 85R, 92 deg incl, 60 fph, Drilled to 11,836'. 11/11/2004 00:00 - 00:50 0.83 DRILL P PROD1 Drilled Z1 turn section, 1.8/1.8 bpm, 3300 - 4100 psi, 95R, 90 deg incl, 40 fph, Stacking wt. Drilled to 11857'. 00:50 - 02:00 1.17 DRILL P PROD1 Wiper trip up to tailpipe to cleanout 7" Liner. Clean hole. 1.9 bpm, 3600 psi, RIH to just above window. Orient TF to highside to get thru window. RIH clean to TD. 02:00 - 03:30 1.50 DRILL P PROD1 Drilled Z1 turn section, 1.8/1.8 bpm, 3300 - 4100 psi, 120R, 93 deg incl, 40 fph, Stacking wt. Drilled to 11902'. 03:30 - 04:45 1.25 DRILL P PROD1 Drilled Z1 turn section, 1.8/1.8 bpm, 3300 - 4100 psi, 130R, 93 deg incl, 40 fph, Stacking full weight. Made a short wiper trip past shale. Drilled to 11,970'. 04:45 - 05:15 0.50 DRILL P PROD1 Drilled Z1 turn section, 1.8/1.8 bpm, 3300 - 4200 psi, 130R, 91 deg incl, 30 fph, Stacking full weight. Clean pick up off bottom. Drilled to 11,980'. 05:15 - 07:30 2.25 DRILL P PROD1 POH for lateral BHA. Clean hole. Flag CT at 11,300' EOP. 07:30 - 09:00 1.50 DRILL P PROD1 Change out MWD probe and dial down motor to 1.1. Bit graded 1-1and was rerun. 09:00 - 11 :00 2.00 DRILL P PROD1 RIH to 11545. 11:00 -11:15 0.25 DRILL P PROD1 Tie-in log, Correction +2'. 11:15-14:20 3.08 DRILL P PROD1 Work to bottom from 11960 to 11980. Directionally drill 1.8/1.9 bpm, 3800 psLFS= 3550 psi, UP WT 32k, DN WT 2K, WOB 6K, TF100R. Drill to 12,143 14:20 - 15:00 0.67 DRILL P PROD1 Wiper to 11535. MW in shale at 11960'. Very High GR shale. Printed: 11/29/2004 11 :52:30 AM Page 3 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11 /8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11111/2004 15:00 - 17:30 2.50 DRILL P PROD1 Drill Zone1 lateral 1.7/1.8 bpm @ 3800 psi, FS = 3540 psi, UP WT 32k, DN WT 2K, TF100R. ROP 130. Drilled to 12,300'. 17:30 - 19:00 1.50 DRILL P PROD1 Wiper trip to tailpipe to check 7" liner. Clean hole. RIH and stack wt in shale at 11960'. Ream shale. UP Wt = 24K. Dwn Wt = 10K. RIH. 19:00 - 19:20 0.33 DRILL P PROD1 Orient TF to 55R. 19:20 - 21 :00 1.67 DRILL P PROD1 Drilling Z1 Lateral. 1.8/1.8 bpm, 3600 - 4200 psi, 100R, 94 deg incl, Drilled to 12,390'. 21 :00 - 22:00 1.00 DRILL P PROD1 Drilling Z1 Lateral. 1.8/1.8 bpm, 3600 - 4200 psi, 120R, 89 deg incl, Drilled to 12,460'. 22:00 - 22:45 0.75 DRILL P PROD1 Wiper trip to window, backream shales at 11960' slow with some motor work. Clean hole up to window. 22:45 - 23:00 0.25 DRILL P PROD1 Log GR tie-in at RA tag. Added 2 ft CTD. 23:00 - 23:20 0.33 DRILL P PROD1 RIH clean to TD. Tag TD at 12,462'. 23:20 - 23:45 0.42 DRILL P PROD1 Drilling Z1 Lateral. 1.8/1.8 bpm, 3600 - 4200 psi, 170R, 89 deg incl, Drilled to 12,498'. 23:45 - 00:00 0.25 DRILL P PROD1 Orient TF to 70R. 11/12/2004 00:00 - 00:15 0.25 DRILL P PROD1 Orient TF to 90R. 00:15 - 01:00 0.75 DRILL P PROD1 Drilling Z1 lateral, 1.8/1.8 bpm, 3650 - 4200 psi, 110R, 78 I deg incl, 100 fph, Drilled to 12,551'. 01 :00 - 01 :20 0.33 DRILL P I PROD1 Orient TF to 100L. 01 :20 - 02:30 1.17 DRILL P PROD1 Drilling Z1 lateral, 1.8/1.8 bpm, 3650 - 4200 psi, 60L, 78 deg incl, 100 fph, Swapped to new FloPro at 12570'. Total of 1,050' with first FloPro system. Drilled to 12,590'. 02:30 - 03:00 0.50 DRILL P , PROD1 Drilling Z1 lateral, 1.8/1.8 bpm, 3650 - 4200 psi, 60L, 80 deg incl, 100 fph, Drilled to 12,625'. 03:00 - 04:45 1.75 DRILL P PROD1 Wiper trip to tailpipe. Backream shale at 11960' with some motor work. Clean up to tailpipe. No indication of fill in 7" liner. RIH clean to TD. 04:45 - 05:45 1.00 DRILL P PROD1 Drilling Z1 lateral, 1.8/1.8 bpm, 3600 - 4200 psi, 10L, 91 deg incl, 80 fph, Drilled to 12,688'. 05:45 - 07:30 1.75 DRILL P PROD1 Orient TF to 90R. Ratty drilling 12690 -710 irradic tool face. Drill at 1.56/1.71 bpm @ 3550 psi, FS = 3200 psi, reactive torque 180, _3K surface wt, ROP 90, 07:30 - 09:15 1.75 DRILL P PROD1 Wiper to window clean trip seen nothing at 11950'. 09:15 - 11 :00 1.75 DRILL P PROD1 Orient 110L, Drilling Z1 lateral, 1.6/1.7 bpm, 3800 -4000 psi, ROP 190, Surface weight 2K , WOB 9K, 12,801, Orient 144L,Drill at 1.6/1.72 bpm 3700 psi, -8K surface wt, Drill to 12825. 11 :00 - 13:00 2.00 DRILL P PROD1 Wiper to TP. 13:00 -13:15 0.25 DRILL P PROD1 Orient 177L Tag at 12819', Drilling Z1lateral, 1.6/1.7 bpm, 3700 psi, 3500 psi FS , ROP 40, Surface weight -8K, Surface wt -8K. ROP 20 13:15 - 17:10 3.92 DRILL P PROD1 Directionally drill 1.6/1.7 bpm @ 3800 psi, FS= 3500 psi, UP wt23K, DN wt 10K, WOB 7K, ROW 60-100, Drill to 12975. 17:10-18:30 1.33 DRILL P PROD1 Wiper to window. Hole clean. 18:30 - 20:15 1.75 DRILL P PROD1 Log MAD pass with Sperry GR from 12800-12690' at 80 fph. 1.8 bpm, 3850 psi. 20:15 - 20:20 0.08 DRILL P PROD1 RIH clean to TD. 20:20 - 20:30 0.17 DRILL P PROD1 Orient TF to 80R. 20:30 - 21:10 0.67 DRILL P PROD1 Drilling Z1 lateral, 1.8/1.8 bpm, 3800 - 4200 psi, 80R, 88 deg incl, 100 fph, Stacking wt. Overpulls off bottom. Orient flopped to left side. Drilled to 13,007'. Printed: 11/29/2004 11 :52:30 AM · BP EXPLORATION Operations Su Page 4 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11112/2004 21 :10 - 21 :50 0.67 DRILL P PROD1 Short wiper trip to 12750' to ream shales. RIH. 21 :50 - 23:15 1.42 DRILL P PROD1 Drilling Z1 lateral, 1.7/1.7 bpm, 3600 - 4000 psi, 140R, 91 deg incl, 60 fph, Stacking wt. Overpulls off bottom. Drilled to 13,065'. 23:15 - 23:45 0.50 DRILL P PROD1 Orient TF to 70R. 23':45 - 00:00 0.25 DRILL P PROD1 Drilling Z1 lateral, 1.7/1.7 bpm, 3600 - 4000 psi, 70R, 90 deg incl, 40 fph, Swap to new FloPro at 13,070', 500 ft drilled with this system. Drilled to 13,070'. 11/13/2004 00:00 - 01 :00 1.00 DRILL P PROD1 DrillingZ1lateral, 1.71 1.7 bpm, 3500-4000 psi, 110R, 20 fph, Stacking full wt, no motor work, new FloPro in hole. Not able to drill further. Drilled to 13,077'. 01 :00 - 03:45 2.75 DRILL P PROD1 POH to check Bit and BHA. 03:45 - 04:00 0.25 DRILL P PROD1 SAFETY MEETING. Review procedure, hazards and mitigation for C/O BHA. 04:00 - 05:50 1.83 DRILL P PROD1 C/O motor, bit, and MHA. Check Sperry probe. Add vibrator. OAL = 65.04 ft. 05:50 - 08:15 2.42 DRILL P PROD1 RIH with lateral MWD BHA with agitator and 1.1 deg motor. Orient 50R run thru window. RIH to 11550'. 08:15 - 08:40 0.42 DRILL P PROD1 Tie in corrrection =2'. 08:40 - 09:00 0.33 DRILL P PROD1 RIH set down 12832, 12892, 12963. Tag 13088. 09:00 - 09:50 0.83 DRILL P PROD1 Backream from 13088 to 12800 1.56/.158 bpm @ 3750 psi. set down 12815, to 12840 ratty hole conditions 09:50 - 10:20 0.50 DRILL P PROD1 Wiper to 12575 1.57 bpm at 3660 psi. Set down 12837. Tag 13088. 10:20 - 10:30 0.17 DRILL P PROD1 Attempt to drill. 1.34 bpm @ 3200 psi FS ,Stacking, Orient 112R, 1.5 BPM 3750 psi= FS. Unable to drill. Tool pressured up. No additional cutting in bottoms up. 10:30 - 13:30 3.00 DRILL N DFAL PROD1 POH circulating over the top of the hole to 440' . Circulate test 1.3 bpm at 3850 psi. Still partially pluged. Cleared up 1.6 bpm @ 3720 psi. 13:30 - 14:30 1.00 DRILL N DPRB PROD1 LD drilling BHA 14:30 - 16:00 1.50 DRILL N DPRB PROD1 Cut 15" coil. Rehead 16:00 - 17:00 1.00 DRILL N DPRB PROD1 MU open hole sidetrack BHA. 17:00 - 19:20 2.33 DRILL N DPRB PROD1 RIH wo pump. Waive shallow hole test to protect nose shield on R-60 bit. Orient TF to high side at 11250'. RIH past window OK. RIHto11,550'. 19:20 - 19:40 0.33 DRILL N DPRB PROD1 Log GR tie-in at RA tag, added 3 ft. 19:40 - 20:30 0.83 DRILL N DPRB PROD1 RIH to 12,200'. OrientTF to 150L. 20:30 - 21 :40 1.17 DRILL N DPRB PROD1 Cut 15 ft trough from 12,200-12,215 ft at 150L with 1,9 deg motor and sidetrack bit. 1.8 bpm, 3680 psi, 20 fph. Stop at 12,215' and flag pipe. Backream up to 12,200'. 21:40 - 23:10 1.50 DRILL N DPRB PROD1 Made second pass of 15 ft trough from 12,200-12,215 ft at 150L with 1.9 deg motor and sidetrack bit. 1.8 bpm, 3680 psi, 15 fph. Stop at 12,215' at flag. 23:10 - 00:00 0.83 DRILL N DPRB PROD1 Drill sidetrack at 2 fph with 150L TF, 1.8 ppm, 3680 psi, Drilled to 12216.5 ft at 0000 hrs. 11/14/2004 00:00 - 01 :00 1.00 DRILL N DPRB PROD1 Drilled OH sidetrack with 2.73" bit and 1.9 deg motor to 12,233'. 1.8 bpm, 3800 psi, 30 fph, 130L TF. 85 deg incl at 12,213'. Original hole was 92.5 deg at same depth. 01 :00 - 01 :50 0.83 DRILL N DPRB PROD1 Backream up to 12,170'. 2 fpm, 112L TF, Ream down at 10 fpm and tag TD at 12,234'. Backream up to 12,170', Stop pump and RIH. Tag TD at 12,235'. We are sidetracked. Printed: 11/29/2004 11 :52:30 AM . . 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11114/2004 01 :50 - 04:00 2.17 DRILL N DPRB PROD1 POH for lateral BHA with 1.1 deg motor and HC 2.7 x 3.0 BC bit. Flagged pipe at 11,200' EOP. POH. 04:00 - 05:30 1.50 DRILL N DPRB PROD1 C/O BHA. M/U HC BC bit, adjust motor to 1.1 deg. C/O Sperry Probe, CIO Orienter and Baker MHA. OAL = 58.94'. 05:30 - 07:30 2.00 DRILL N DPRB PROD1 RIH with BHA #7, lateral BHA with 1.1 deg motor and HC BC Bit. Shallow hole test at 5000 ft. Test orienter. OK. RIH to Flag at 11,200' EOP. 07:30 - 08:50 1.33 DRILL N DPRB PROD1 Try to get thru window setting down 11517. NO GO high side TF. Final popped thru at 49R. 08:50 - 09:35 0.75 DRILL N DFAL PROD1 Attempt to Orient. No Go. POH for orienter. 09:35 - 11 :30 1.92 DRILL N DFAL PROD1 POH 11 :30 - 12:30 1.00 DRILL N DFAL PROD1 Change out orienter and MWD probe. Orienter full of metal cuttings. 12:30 - 15:15 2.75 DRILL N DFAL PROD1 RIH to window 70R. RIH to open hole st. Orient 165L enter new hole tag and correct to 12235'. 15:15 - 17:30 2.25 DRILL N DPRB PROD1 Directionally drill Zone 1. Orient 15R. Drill 1.6 11.56 bpm at 3800 psi,3550 psi = FS, UP wt 24K, DN wt 14K, WOB 6k, ROP 50, Directionally drill to 12330 17:30 - 18:45 1.25 DRILL N DPRB PROD1 Directionally drill Zone 1. Orient 144R. Drill 1.56/1.64 bpm at 3600 psi,3500 psi = FS, UP wt 24K, DN wt 14K, WOB 7k, ROP 50. Drilled to 12370'. 18:45 -19:20 0.58 DRILL N DPRB PROD1 Drilling Z1 lateral. 1.7/1.7 bpm, 3700 - 4100 psi, 99R TF, 89 deg incl, 80 fph, Drilled to 12400'. 19:20 - 20:50 1.50 DRILL N DPRB PROD1 Wiper trip to window. Clean hole. RIH. Ream shales at 11950 ! and 12320'. 20:50 - 21 :05 0.25 DRILL N DPRB PROD1 Orient TF to 122R. 21 :05 - 23:00 1.92 DRILL N DPRB PROD1 Drilling Z1 lateral, 1.7/1.7 bpm, 3700-4200 psi, 125R. 88 deg incl, 80 fph, Drilled to 12485'. 23:00 - 23:15 0.25 DRILL N DPRB PROD1 Orient TF to 40R 23:15 - 00:00 0.75 DRILL N DPRB PROD1 Drilling Z1lateral, 1.7/1.7 bpm, 3700-4200 psi, 60R. 89 deg incl, 80 fph, Drilled to 12,540', 11/15/2004 00:00 - 00:15 0.25 DRILL N DPRB PROD1 Drilling Z1 lateral, 1.7/1.7 bpm, 3700-4200 psi, 89 deg incl, 90 fph, Drilled to 12552'. 00:15 - 01:45 1.50 DRILL N DPRB PROD1 Wiper trip to tailpipe. motor work in shale at 11960'. 7" appeared clean. 01 :45 - 02:00 0.25 DRILL N DPRB PROD1 Log GR tie-in at RA tag. added 1 ft CTD. 02:00 - 03:30 1.50 DRILL N DPRB PROD1 RIH and sat down in shale I ledge at 11840'. Orient to original drilled TF of 90R. Sat down at 11840' several times. RIH with minimum pump and spud, no progress. Not able to get past 11845 ft. 03:30 - 05:00 1.50 DRILL N DPRB PROD1 Re-orient TF to 90R. TF ends up at 70L after trying to get down hole. not able to orient. Pull up to window and try orienting. Not able to orient. 05:00 - 07:00 2.00 DRILL N DFAL PROD1 POH for failed orienter. 07:00 - 08:00 1.00 DRILL N DFAL PROD1 Change out orienter dial motor up to 1.9 deg. 08:00 - 10:00 2.00 DRILL N DFAL PROD1 RIH. Shallow hole test OK. RIH 11,485. Orient TF 77R thru window OK., 10:00 - 10:13 0.22 DRILL N DFAL PROD1 Tie - in No correction. 10:13 - 10:30 0.28 DRILL N DFAL PROD1 Rlh to 11,900 167R TF. 10:30 - 11 :25 0.92 DRILL N DPRB PROD1 Backream 30L TF. Motor work 11847. Back ream to 11815. Printed: 11/29/2004 11 :52:30 AM · BP EXPLORATION .. S Summary Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11 /8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11115/2004 10:30 - 11 :25 0.92 DRILL N DPRB PROD1 RIH setdown 11838 TF 19L Set Down 11850. RIH to 11890. Backream 150R . RIH OK. RIH 11980 set down. 11 :25 - 12:30 1.08 DRILL N DPRB PROD1 Continue to RIH 12200 TF HS. Set down 12219. Back ream to 12166. Orient 145L. RIH to 12,264 directional confirmed in new hole. Back ream 90R to 12190. RIH to 12257. TF 100R in old hole. POH. Orient 137L. RIH to 12265. Survey confirm in new hole. 12:30 - 13:00 0.50 DRILL N DPRB PROD1 POH to 11800 seen motor work at 11835. RIH to 11890 TF 60 R. 13:00 - 13:15 0.25 DRILL N DPRB PROD1 Backream 11890 to 11800. RIH bounced thru. 13:15 - 15:00 1.75 DRILL N DPRB PROD1 POH. 15:00 - 15:45 0.75 DRILL N DPRB PROD1 Dial down motor from 1.9 to 1.1. Re-ran bit. 15:45 - 18:30 2.75 DRILL N DPRB PROD1 RIH to 5015. Shallow hole test. OK. RIH to 11482'. Orient to 55R set down at 11521. Third try worked. RIH to 11979 set down. pop thru. RIH 12,150' orient TF to 150L and go thru open hole sidetrack OK. RIH to TD. Tag at 12,559'. 18:30 - 18:45 0.25 DRILL N DPRB PROD1 Orient TF to 85R. 18:45 - 20:30 1.75 DRILL N DPRB PROD1 Drilling Z1A lateral, 1.7/1.7 bpm, 3700-4200 psi, 85R, 89 deg incl, 120 fph, Drilled sand from 12600 - 12710', Drilled to 10,710'. 120:30 - 21 :30 1.00 DRILL N DPRB PROD1 Wiper trip to window. Motor work I overpull at OHST at I 12,200'. Had overpull and motor work in shale at 11,870-11,830'. Clean I up to window. 21 :30 - 21 :45 0.25 DRILL N DPRB PROD1 i Log GR tie-in at RA tag. Subtract 3' CTD. 21 :45 - 22:30 0.75 DRILL N DPRB PROD1 RIH and stack wt at 11840', 11870', 11980'. Went thru OHST at 12,200' clean with 90L TF. RIH clean to TD. 22:30 - 22:40 0.17 DRILL N DPRB PROD1 Orient TF to 70R. 22:40 - 00:00 1.33 DRILL N DPRB PROD1 Drilling Z1A lateral, 1.7/1.7 bpm, 3700-4200 psi, 90R, 92 deg incl, 80 fph, Drilled sand from 12710'-12730', Drilled to 10,815'. 11/16/2004 00:00 - 01 :00 1.00 DRILL N DPRB PROD1 Drilling Z1 A Lateral, 1.7/1.7 bpm, 3750-4300 psi, 85R, 92 deg incl, 80fph, Drilled to 12,855'. 01 :00 - 02:00 1.00 DRILL N DPRB PROD1 Wiper trip to window. Clean up thru OHST and up to window. Hole in better condition on this wiper trip. 02:00 - 05:00 3.00 DRILL N RREP PROD1 SCR board overheated. Pull slow up thru window and up into 7" liner on one generator, while filling well from backside with charge pump. Park bit in 7" liner at 11250'. Rig electrician working on SCR board. Getting spare parts from Nordic 2. Determined that Generator #1 must be replaced. 05:00 - 08: 15 3.25 DRILL N RREP PROD1 POH on one generator to change out generator #1. Estimate total down time at 18 hours. 08:15 - 13:00 4.75 DRILL N RREP PROD1 Pull Generator #1 from motor room. 13:00 - 18:00 5.00 DRILL N RREP PROD1 Install re-built generator in motor room. SWS cut off 10ft of coil and welded on new CTC. 18:00 - 00:00 6.00 DRILL N RREP PROD1 Cat Mechanic couple replacement generator. 11/17/2004 00:00 - 03:00 3.00 DRILL N RREP PROD1 Cat Mechanic finish coupling mechanical components of generator set#1. 03:00 - 10:00 7.00 DRILL N RREP PROD1 Nordic Electrician hooking up electrical components of generator set#1. 10:00 - 11 :00 1.00 DRILL N RREP PROD1 Test Generator, found spacing between motor and generator was too tight, causing hub bearing to rub. 11 :00 - 15:00 4.00 DRILL N RREP PROD1 Disconnect generator from motor. Damaged generator coupler Printed: 11/29/2004 11 :52:30 AM . . P EXPLORATION aryR Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11/17/2004 11 :00 - 15:00 4.00 DRILL N RREP PROD1 hub in process. 15:00 - 20:15 5.25 DRILL N RREP PROD1 Fetch a replacement coupler hub from another generator. Meanwhile inspect & service injector. 20: 15 - 00:00 3.75 DRILL N RREP PROD1 Heat & re-install generator coupler hub. 11/18/2004 00:00 - 01 :00 1.00 DRILL N RREP PROD1 Finish installing spare coupler hub. Observe hub to be slightly misaligned & causing tension on the motor. 01 :00 - 02:15 1.25 DRILL N RREP PROD1 Heat & disconnect coupler hub & re-install with proper alignment. 02:15 - 04:30 2.25 DRILL N RREP PROD1 Cat Mechanic couple-back generator set#1. 04:30 - 07:30 3.00 DRILL N RREP PROD1 Nordic Electrician hook up electrical components of generator set#1. Meanwhile fill hole with 3bbls flopro. 07:30 - 14:00 6.50 DRILL N RREP PROD1 Test generator set #1. Repair SCR panels. 14:00 - 15:00 1.00 DRILL N RREP PROD1 Test Generator set #1. Pump thru coil at 1.0 bpm 11000 psi, 12.0 bpm I 2350 psi. Good test on generator #1. 15:00 - 15:15 0.25 DRILL N RREP PROD1 SAFETY MEETING. Review procedure, hazards and mitigation for M/U BHA. 15:15 - 16:30 1.25 DRILL N RREP PROD1 M/U Sperry MWD BHA #11 with new 2.7 x 3.0 HC BC bit #8 and 1.1 deg motor. OAL = 59.1 ft. 16:30 - 19:30 3.00 DRILL N RREP PROD1 RIH with BHA #11. SHT OK. RIH to 11475'. 19:30 - 19:55 0.42 DRILL N DPRB PROD1 Wipe up hole in the 7" from 11475' to TT @ 1.5bpm/3450psi. RBIH & run thru window to 11550'. 19:55 - 20:15 0.33 DRILL N DPRB PROD1 Log up GR & tie-into RA Pip tag. Subtract 4' from CTD. 20: 15 - 20:45 0.50· DRILL N DPRB PROD1 Continue RIH @ 25fpm & 1.5bpm/3600psi. Stack out @ 11840' with no motor work. P/U & SID pump. RIH thru shale with wt bobbles. Set down @ 11979'. Temporary power outage. Fix power. 20:45 - 21 :20 0.58 DRILL N DPRB PROD1 Work shale from 11979' to 11840' - packing oft. Ream down @ as drilled TF (105R) Stacking out & can't get past 11850'. 21 :20 - 22:30 1.17 DRILL N DPRB PROD1 Wiper trip to window. RBIH & set down 11860'. Wipe up hole to 11660'. RBIH & set down @ 11830'. 22:30 - 00:00 1.50 DRILL N DPRB PROD1 Ream/Backream shale area from 11700' to 11830'. Meanwhile swap well to fresh flopro mud. Spud & wash down to 11855'. Can't make further progress without reaming. Decide to POOH to reset motor bend to 1.9degs. 11/19/2004 00:00 - 02:40 2.67 DRILL N DPRB PROD1 POOH to above window. Function test orienter OK. Paint EOP flag @ 11300' & continue POOH to 5800'. Function test orienter - OK. POOH to surface. 02:40 - 03:20 0.67 DRILL N DPRB PROD1 OOH. PJSM. SIB injector. Inspect orienter - OK. Check bit - OK with 1 broken back reaming cutter. Reset motor bend to 1.9degs & scribe tools. C/O MHA & M/U injector. 03:20 - 06:00 2.67 DRILL N DPRB PROD1 RIH with BHA #12. SHT @ 5000',5800' - no clicks. RIH to 7100'. SHT orienter - OK got 4 for 4 clicks. Continue RIH. Correct -4' @ the flag. 06:00 - 06:30 0.50 DRILL N DPRB PROD1 RIH and set down at 11830', set down at 11850' with 127R TF., Stop pump, set down. 06:30 - 06:45 0.25 DRILL N DPRB PROD1 Orient TF to 60R. 06:45 - 07:10 0.42 DRILL N DPRB PROD1 Ream down, stack wt at 11830', stop pump, fall thru to 11850'. Stack full wt at 11850' with 80R TF. RIH with 0.5 bpm, 80R, set down. Back ream up to 11810'. orient 1 click. TF jumped over to 11 OL. 07:10 - 07:20 0.17 DRILL N DPRB PROD1 Orient TF to 100R. 07:20 - 08:00 0.67 DRILL N DPRB PROD1 Ream down to 11850'. Set pump at 0.5 bpm and spud down at 100R. Printed: 11/29/2004 11:52:30 AM . . Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11/19/2004 07:20 - 08:00 0.67 DRILL N DPRB PROD1 Work area at 0.5 bpm, Spud 2 times full speed, no pump. Looks like solid ledge. No progress. 08:00 - 08:30 0.50 DRILL N DPRB PROD1 Log GR tie-in at RA tag. Added 8.5 It to CTD. 08:30 - 09:00 0.50 DRILL N DPRB PROD1 RIH and ream down at 46R, 4 fpm, to 11859'. Original hole drilled at 50R at 11857'. Set down twice with 60R TF. 09:00 - 09:20 0.33 DRILL N DPRB PROD1 Orient TF to 30R. 09:20 - 09:30 0.17 DRILL N DPRB PROD1 Ream down at 25R, 3 fpm, Set down at 11858 ft. Spud down with no pump. 2 times. No luck. Orient to 50R. 09:30 - 11 :15 1.75 DRILL N DPRB PROD1 Ream down at 50R at original TF, 1.5 bpm, 3600 psi, 2 fpm, Take wt at 11860'. Ream ahead slow at 50R, with no WOB, 0.5 fpm, 3750 psi, 0 WOB, Ream down to 11,920' without sidetracking. Backream shales up to 11800'. 11:15 -12:15 1.00 DRILL N DPRB PROD1 Ream shales at 50R TF. Ream down to 12000'. Backream up to 11900. Ream down to 12000'. 12:15 - 15:30 3.25 DRILL N DPRB PROD1 RIH to 12150', orient to 170L, RIH past open hole sidetrack, OK to 12,250'. Orient TF to 10R. RIH to shale at 12400'. Ream shale at 12400' and RIH to TD. Tag bottom at 12,853'. 15:30 - 18:35 3.08 DRILL N DPRB PROD1 POH. Ream shales at 11950' and 11840'. POH. 18:35 - 19:15 0.67 DRILL N DPRB PROD1 OOH. PJSM. SIB injector. Inspect orienter - OK. Check bit - OK (21211). Reset motor bend to 1.1 degs & scribe tools. MIU injector. 19:15 - 22:00 2.75 DRILL N DPRB PROD1 RIH with BHA #13. SHT @ 5800' - got 10deg clicks. RIH to 11100'. Test orienter - OK, got 2 for 2 clicks. Continue RIH thru window to 11550'. 22:00 - 22: 15 0.25 DRILL N DPRB PROD1 Log up GR & tie-into RA Pip tag. Add 2' to CTD. 22:15 - 23:00 0.75 DRILL N DPRB PROD1 Continue RIH with wt bobbles across shale sections. Set down @ 11979'. Work thru shale with as drilled TF (90R). Continue RIH & tag btm @ 12855'. 23:00 - 23: 15 0.25 DRILL N DPRB PROD1 Orient TF to 130L. Dwn wt = 9.2k. Up wt = 23k. Freespin = 1.5bpm/3850psi. PVT = 236bbls. 23:15 - 00:00 0.75 DRILL N DPRB PROD1 Drill to 12875' with 140L TF, 1.5/1.5bpm, 3850/4050psi, 45fph ave ROP. 11/20/2004 00:00 - 00:15 0.25 DRILL N DPRB PROD1 Orient TF to 75L. 00:15 - 02:00 1.75 DRILL N DPRB PROD1 Drill to 12901' with 80-90L TF, 1.5/1.5bpm, 3850/4100psi, 40fph ave ROP. Very ratty drilling with occasional motor stalling. 02:00 - 02:15 0.25 DRILL N DPRB PROD1 Orient TF around to 140L. 02:15 - 03:15 1.00 DRILL N DPRB PROD1 Drill to 12925' with 130-90L TF, 1.5/1.5bpm, 3850/4050psi, 50fph ave ROP. Very ratty drilling. Drill into a halt @ 12925'. 03:15 - 04:30 1.25 DRILL N DPRB PROD1 Grind-on to 12926' without much progress. Can't stall motor. Check shakers & saw rubber in samples. Decide to POOH for motor. PVT = 221 bbls. 04:30 - 07:15 2.75 DRILL N DFAL PROD1 POOH drilling BHA. Phase-2 declared on all GPB roads & pads. 07:15 - 07:30 0.25 DRILL N DFAL PROD1 SAFETY MEETING. Review procedure, hazards and mitigation for CIO BHA. 07:30 - 07:45 0.25 BOPSUP N DFAL PROD1 Function Test all BOP rams and annular. 07:45 - 09:00 1.25 DRILL N DFAL PROD1 CIO motor, orienter, and Sperry probe. OAL = 59.0 ft. 09:00 - 11 :30 2.50 DRILL N DFAL PROD1 RIH with Lat MWD BHA #14 with 1.1 deg motor and HC BC Bit #11. SHT OK. RIH. 11 :30 - 11 :40 0.17 DRILL N DFAL PROD1 Orient TF to 30R. Printed: 11/29/2004 11 :52:30 AM · Page 9 of Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11 /8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11/20/2004 11:40 -12:00 0.33 DRILL N DFAL PROD1 RIH clean to 12150'. Orient to low side, Ran thru OHST clean, RIH to 12400', ream shale, 12:00 - 13:00 1.00 DRILL N DPRB PROD1 RIH and tag TD at 12,928'. 13:00 - 13:30 0.50 DRILL N DPRB PROD1 Orient TF to 80L. 13:30 - 14:15 0.75 DRILL N DPRB PROD1 Drilling Z1 lateral, 1.51 1.5 bpm, 3700 - 4100 psi, 80L, 88 deg incl, 50 fph, Drilled to 12960'. 14:15 - 14:35 0.33 DRILL N DPRB PROD1 Drilling Z1 lateral, 1.5/1.5 bpm, 3700 - 4100 psi, 60L, 89 deg incl, 80 fph, Drilled to 12975'. 14:35 - 15:05 0.50 DRILL N DPRB PROD1 Orient TF to 90L. 15:05 - 16:20 1.25 DRILL N DPRB PROD1 Drilling Z1 lateral, 1.5/1.5 bpm, 3700 - 4100 psi, 90L, 90 deg incl, 100 fph, Drilled to 13004'. 16:20 - 16:50 0.50 DRILL N DPRB PROD1 Orient TF to 100L. 16:50 - 17:20 0.50 DRILL N DPRB PROD1 Drilling Z1 lateral, 1.5/1.5 bpm, 3750 - 4100 psi, 100L, 88 deg incl, 100 fph, Drilled to 13,043'. 17:20 - 17:40 0.33 DRILL N DPRB PROD1 Short 200' wiper trip, getting 120 deg reactive torque. 17:40 - 19:15 1.58 DRILL N DPRB PROD1 Drilling Z1 lateral, 1.5/1.5 bpm, 3750 - 4100 psi, 20-30L, 88 deg incl, 40 fph, Drilled to 13,078'. 19:15 - 20:00 0.75 DRILL N DPRB PROD1 Wiper trip clean to window. 20:00 - 20:25 0.42 DRILL N DPRB PROD1 Log up GR & tie-into RA Pip tag. Add 5' to CTD. 20:25 - 21 :45 1.33 DRILL N DPRB PROD1 RBIH to btm. Set down @ 11975'. P/U, SID pump & run thru. Continue RIH to btm with wt bobbles across 12400'. 21 :45 - 22:00 0.25 DRILL N DPRB PROD1 Orient TF to 50R. P/U wt = 23k. S/O wt = 9k. Freespin = 1.5bpm/3700psi. Geo wants to maintain 8953-8958'ssvd. 22:00 - 23:30 1.50 DRILL P PROD1 Drill to 13130' with 70-90R TF, 1.5/1.5bpm, 3700/3950psi, 4k WOB & 60fph ave ROP. 23:30 - 00:00 0.50 DRILL P PROD1 Orient & drill to 13170' with 100R TF, 1.5/1.5bpm, 3700/3950psi, 4k WOB & 80fph aye ROP. 11/21/2004 00:00 - 00:30 0.50 DRILL P PROD1 Orient & drill to 13184' with 95R TF, 1.5/1.5bpm, 3700/3950psi, 4k WOB & 70fph aye ROP. 00:30 - 00:50 0.33 DRILL P PROD1 Short 100' wiper. 00:50-01:10 0.33 DRILL P PROD1 Orient & drill to 13201' with 75R TF, 1.5/1.5bpm, 380014050psi, 4k WOB & 80fph ave ROP. 01:10 - 01:15 0.08 DRILL P PROD1 Orient TF to 100R. 01 :15 - 02:15 1.00 DRILL P PROD1 Orient & drill to 13223' with 90R TF, 1.5/1.5bpm, 3800/4000psi, 4k WOB & 40fph ave ROP. 02:15 - 04:30 2.25 DRILL P PROD1 Wiper trip clean to tubing tail. RBIH with wt bobbles across shale sections. Set down @ 11979'. Work thru shale with as drilled TF (90R). Continue RIH to btm. 04:30 - 05:15 0.75 DRILL P PROD1 Orient TF to around to 120L. 05:15 - 06:00 0.75 DRILL P PROD1 Drill to 13237' with 120L TF, 1.5/1.5bpm, 3700/3950psi, 4k WOB & 35fph ave ROP. 06:00 - 08:15 2.25 DRILL P PROD1 Drilling Z1A Lateral, 1.6/1.6 bpm, 3800-4200 psi, 60L, 89 deg incl, 60 fph, stacking wt, Drilled to 13,310'. 08:15 - 09:30 1.25 DRILL P PROD1 Orient TF to 80L. 09:30 - 10:00 0.50 DRILL P PROD1 Drilling Z1A Lateral, 1.5/1.5 bpm, 3800-4200 psi, 60L, 89 deg incl, 60 fph, stacking wt, Drilled sand, Drilled to 13,375'. 10:00-11:15 1.25 DRILL P PROD1 Wiper trip to window. 22.5K up wt, Motor work I overpull at 12400'. 11:15 -11:40 0.42 DRILL P PROD1 Log GR tie-in with RA tag. Added 4 ft CTD. 11 :40 - 12:30 0.83 DRILL P PROD1 RIH clean to 12420'. Sat down in shale twice and went thru with no pump. RIH to bottom. 12:30 - 13:15 0.75 DRILL P PROD1 Orient TF to 90L. 13:15 - 14:30 1.25 DRILL P PROD1 Drilling Z1A Lateral, 1.5 11.5 bpm, 3850-4200 psi, 80L, 91 Printed: 11/29/2004 11 :52:30 AM . . BP EXPLORATION Page 10 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11121/2004 13:15-14:30 1.25 DRILL P PROD1 deg incl, 90 fph, stacking full wt, drilling with new FloPro with 5% L T off vac truck, Very difficult to get coil to slide, pull up 200 ft to start sliding, then run to bottom and drill sand. Drilled to 13,463'. 14:30 - 15:30 1.00 DRILL P PROD1 Orient TF to 11 OL. 15:30 - 17:20 1.83 DRILL P PROD1 Drilling Z1A Lateral, 1.5/1.5 bpm, 3900-4200 psi, 80L, 92.5 deg incl, 60 fph, stacking full wt, Pick up 200 ft to get coil to slide. Drilling sand, Drilled to 13,490'. 17:20 - 19:30 2.17 DRILL P PROD1 Wiper trip to tailpipe. 23K up wt off bottom. RBIH to 11550'. 19:30 - 19:50 0.33 DRILL P PROD1 Log up GR & tie-into RA Pip tag. Add 5' to CTD. 19:50 - 21:10 1.33 DRILL P PROD1 RBIH to btm. Set down @ 11979'. Work thru shale with as drilled TF (90R). Continue RIH to btm with wt bobbles across 12400' . 21:10 - 21:30 0.33 DRILL P PROD1 Orient TF to 90L. Dwn wt = 6k. Up wt = 22k. Freespin = 1.5bpm/3650psi. PVT = 302bbls. 21 :30 - 00:00 2.50 DRILL P PROD1 Drill to 13513' with -ve CT wt, 120L TF, 1.5/1.5bpm, 3700/3950psi, 7-9k WOB, & 15fph ave ROP. Ran out of push & decide to call TD. 11/22/2004 00:00 - 01 :00 1.00 DRILL P PROD1 Wiper trip clean to window. 01 :00 - 01 :30 0.50 DRILL P PROD1 Log up GR & tie-into RA Pip tag. Add l' to CTD. 01 :30 - 02:45 1.25 DRILL P PROD1 RBIH to btm with wt bobbles across 12400'. Cleanout shales & continue RIH. Start pumping fresh liner pill downhole. Tag TD 2x @ 13513'. 02:45 - 06:00 3.25 DRILL P PROD1 POOH while laying in fresh liner pill in OH. Saw slight wt bobbles across shale @ 12400'. Paint EOP flags @ 10800' & 8800' & continue POOH for liner. 06:00 - 07:00 1.00 DRILL P PROD1 Layout drilling BHA. Bit still in good condition. 07:00 - 08:00 1.00 CASE P RUNPRD Prepare rig floor for running liner. M/U Baker 1.875" drift on 1" CSH 6' pup and joint for drifting connections after M/U. 08:00 - 08:15 0.25 CASE P RUNPRD SAFETY MEETING. Review procedure, hazards and mitigation for running 2-3/8" liner. 08:15 - 12:15 4.00 CASE P RUNPRD Run 2-3/8", 4.7#, L-80, STL Liner with Baker float and deployment equipment as per program. Drift each connection after make-up with Baker 1.875" drift. Run total of 84 jts of 2-3/8" liner and 3, 10' pups for space out and marker joint. All connections drifted OK. 12:15 - 13:00 0.75 CASE P RUNPRD M/U Baker CTLRT with 2.70" Deployment sleeve and LWP inside a pup joint. Liner total length to top of Deploy sleeve = 2,578.20 ft. Fill and circulate liner at surface. 13:00 - 14:45 1.75 CASE P RUNPRD RIH with 2-3/8" liner on CT. Circ. at 0.1 bpm, 1900 psi, RIH at 90 fpm. Full returns. RIH to EOP flag and correct [-4.5 ft] to 11380' flag. Up Wt = 27K, Dwn Wt = 14K, Went thru the window clean with no weight loss. 14:45 - 17:00 2.25 CASE P RUNPRD RIH at 55 fpm, 0.2 bpm, 2150 psi, Full returns. Sat down full wt in shale at 11950', pick up and went thru on second try. RIH with 11 k dwn wt at 12000'. Went thru open hole sidetrack at 12,200', stacked wt on ledge at 12,250', Sat down 3 times and jumped ledge. RIH and sat down in shale at 12420'. Work thru shale, sat Printed: 11/29/2004 11 :52:30 AM BP EXPLORATION 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11122/2004 14:45 - 17:00 2.25 CASE P RUNPRD down 9 times. RIH at 12600' with 9K dwn wt. 45 fpm, 0.2 bpm. Set down every 30 ft down to 13220'. Ran out of push at this depth. Stop pump and work pipe to bottom with negative injecter wt. [ -3-6K]. Saw coil flag at 13,380' on depth. Continue to work pipe to bottom. Land liner on bottom at 13,504'. Tag this same depth 5 times. Liner must be landed at TD. 17:00 - 18:15 1.25 CASE P RUNPRD Insert 5/8" Phenalic ball and displace with FloPro at 0.82 bpm at 3000 psi, full returns. Ball on seat at 35.5 bbls. Sheared at 3600 psi. Picked up free at 26K. 18:15-19:00 0.75 CEMT P RUNPRD Circ. well to 2% KCL water with double friction reducer @ 1.5bpm/1700 psi. Send used FloPro to MI for reconditioning. Meanwhile R/U SLB cementers. 19:00 - 21 :45 2.75 CEMT P RUNPRD Fill rig pits with KCL. Mix 30 bbl of 1.5# Biozan displacement fluid. Meanwhile continue displacing well to 2% KCI at 2.2/2.2bpm & 2240psi. 21:45 - 22:00 0.25 CEMT P RUNPRD PJSM with all personnel concerning cementing operations. PVT = 313bbls. 22:00 - 23:35 1.58 CEMT P RUNPRD Batch mix 10bbls 15.8ppg 'G' latex cmt with additives. Cmt to wt @ 22:30hrs. FlushlPT lines to 4k. Pump 10bbls cmt slurry @ 1.9511.91 bpm & 31 OOpsi. Close inner reel valve & clean lines. Load/launch CTWP with 500psi. Chase with bio-KCL @ 1.74/1.64bpm & 2500psi. CTWP engage LWP @ 39.6bbls away. Shear plug with 3880psi. Continue displacing LWP @ 1.15/1.05bpm, 2000psi & bump @ 48.9bbls away with 1000psi over. Bleed off & check floats - held. Pressure up to 200psi & sting out of liner. 8.6bbls cmt pumped around shoe. CIP @ 23:30 hrs. PVT = 312bbls. 23:35 - 00:00 0.42 CEMT P RUNPRD POOH @ 100fpm pumping @ 0.40bpm to replace CT voidage only. 11/23/2004 00:00 - 01 :30 1.50 CEMT P RUNPRD Continue POOH @ 100fpm pumping @ 0.40bpm to replace CT voidage only. 01:30 - 02:15 0.75 CEMT P RUNPRD OOH. PJSM. SIB injector & UD LBRT. 02:15 - 02:30 0.25 CLEAN P LOWER1 RlU to P/U cleanout nozzle & 1" CSH tbg. 02:30 - 02:45 0.25 CLEAN P LOWER1 PJSM on P/U & RIH cleanout BHA. 02:45 - 06:30 3.75 CLEAN P LOWER1 M/U cleanout BHA #16 with 1.81" nozzle. Drift & M/U 86 jts of 1" CSH tbg, XO & upper MHA. MIU injector. 06:30 - 08:30 2.00 CLEAN P LOWER1 RI H with nozzle cleanout BHA to 11,100'. Enter top of window clean. Circ at .5 bpm, 08:30 - 12:30 4.00 CLEAN P LOWER1 Wait on Cement @ UCA to get to 500psi. 12:30 - 14:15 1.75 CLEAN P LOWER1 RIH with 1.81" nozzle and clean out 2-3/8" liner. Circ. at 1.55 bpm, 3600 psi. RIH clean to PBTD. Tag PBTD on depth at 13,498'. 14:15 -16:45 2.50 CLEAN P LOWER1 POH while circ at 1.4 bpm, 3600 psi. POH at 45 fph. 16:45 - 20:00 3.25 CLEAN P LOWER1 OOH. PJSM. SIB injector. UD MHA & RIB 43 stands of 1" CSH. Performed a valve drill while RIB 1" CSH. 20:00 - 00:00 4.00 BOPSUP P LOWER1 Pressure test BOPE. - John Crisp waived witness 11/24/2004 00:00 - 01 :30 1.50 BOPSUP P LOWER1 Pressure test BOPE. - John Crisp waived witness 01 :30 - 03:30 2.00 EVAL P LOWER1 Prepare logging tools Printed: 11/29/2004 11:52:30 AM . BPEXPLORATION Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11/24/2004 01 :30 . 03:30 2.00 EVAL P LOWER1 · New SLB hand, finish viewing rig orientation video. · Program tools. - Bring tools to floor. 03:30 . 04:30 1.00 EVAL P LOWER1 PJSM. PU logging tools. 04:30 . 05:30 1.00 EVAL P LOWER1 Pick up 86 jts 1" CSH. 05:30 . 07:30 2.00 EVAL P LOWER1 MU MHA. RIH. 07:30 . 09:00 1.50 EVAL P LOWER1 Start logging pass down @ 30 fpm from 10,700' I Perf pill on location, start DH 09:00 . 09:55 0.92 EVAL P LOWER1 Tag TD @ 13,496' . 24k PU I Log up @ 60 fpm laying in perf pill 09:55 . 11 :20 1.42 EVAL P LOWER1 Logging complete I POOH 11 :20 . 11 :45 0.42 EVAL P LOWER1 OOH rig back injector 11 :45 . 13:00 1.25 EVAL P LOWER1 PJSM, rig back 43 stands 1" CSH 13:00·14:00 1.00 EVAL P LOWER1 PJSM. Remove RA source from logging tool. LD tools. Check log data quality - OK. Download & fax CNL log to ANC Geo. From log data, PBTD = 13493.35" & TOL = 10922'. Clean up I floor. I 14:00·14:40 0.67 EVAL P LOWER1 Liner lap test, 2800 psi compressive @ 11 :151 PT to 2000 psi with fast drop to 1300 psi within 1 minute. Leveled off to 1050 psi after 5 min with approx 25 psi per min drop therafter. 950 114:40·16:00 psi @ 10 min. Confirm TOC is below upper open perfs. 1.33 PERFOB P LOWER1 Guns on location. Load guns into pipe shed & R/U to run perf I guns. M/U safety jt. 16:00·16:15 0.25 PERFOB P LOWER1 Held PJSM for P/U perf guns. Review perforating procedures. 16:15·19:30 3.25 PERFOB P LOWER1 M/U 55jts of 1.56" HSD 6spf 1606PJ guns & blanks with BCF firing system. · Held PJSM with night crew. 19:30 . 20:30 1.00 PERFOB P LOWER1 RIH with 48 joints of 1" CSH. 20:30 . 22:30 2.00 PERFOB P LOWER1 RIH with perf guns on CSH. · Pump 12 bbls of perf pill ahead. 22:30·23:30 1.00 PERFOB P LOWER1 Tag TD at 13,495' MD. Pick up 29.4k PU, 13,490.5' MD PU depth. Correct CT depth to 13,493.33' MD. Drop 1/2" aluminum ball. Pump 10 bbls of perf pill behind. · Pump ball down at 1.1 bpm, 2200 psi. - Decrease rate to 0.4 bpm, 1000 psi. Ball on seat at 39.0 bbls in (318 bbls pit volume). Pressure up to 3400 psi, shots fired, coil in motion. Shot Interval: 12340'·12380',12440' - 12470',12590' - 12740', 12770'·12840',12870' - 13200',13305' - 13495'. 23:30 . 00:00 0.50 PERFOB P LOWER1 POOH in liner at 28.7k PU. · Pit volume at 317 bbls (-1 bbls) · 0.5 bpm I 850 psi. 11/25/2004 00:00 . 01 :00 1.00 PERFOB P LOWER1 Continue to POOH in liner. 01:00·01:15 0.25 PERFOB P LOWER1 Flowcheck well at top of liner. 01:15·03:00 1.75 PERFOB P LOWER1 POOH - Shut in backside, holding 200 psi backpressure. - Total Losses: 4 bbls. 03:00 . 03:30 0.50 PERFOB P LOWER1 Flow check well at surface. - PJSM · Prep rig floor. 03:30 . 04:30 1.00 PERFOB P LOWER1 Stand back 24 stands of 1" CSH. 04:30 - 09:30 5.00 PERFOB P LOWER1 PJSM. Lay down 55 perf guns/blanks. ASF! Load out perf Printed: 11/2912004 11:52:30AM · BP EXPLORATION Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11/8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11/25/2004 04:30 - 09:30 5.00 PERFOB P LOWER1 guns. 09:30 - 09:45 0.25 CASE P RUNPRD Held PJSM for M/U & RIH l TP. 09:45 - 10:30 0.75 CASE P RUNPRD M/U BHA #19 with Bkr seal assy, 2 jts of 10' 2-3/8" tbg pups, KB Packer, GH RlTool, 1 jt of 2-1/16" CSH tbg & MHA. M/U injector. 10:30 - 13:15 2.75 CASE P RUNPRD RIH with Baker 3-1/2" KB l TP BHA #19 @ 75fpm to 10850'. 13:15 - 15:20 2.08 CASE N DPRB RUNPRD Up wt at 10850' = 26k, Dwn wt = 16k. RIH circ @ 0.12bpm/300psi. Observe pressure bump to 350psi @ 10911'. Set down 5k @ 10913'. P/U & observe wt breakover @ 10908'. PUH to 10904'. RIH circ @ 0.30bpm/400psi. Pressure up @ 10913.9'. SID pump & set down 5k @ 10915.9'. Pump down CT - getting returns. Suspect packer is hanging up on SWS nipple @ +/-10876'. Work packer up & down & manage to work thru nipple. Attempt to work seals into deployment sleeve - not going (suspect mule shoe tagging up on TOL). Pump down the CT & via back side & surge BHA several times to flip mule shoe into deployment sleeve - no luck. PUH thru SWS nipple with 10k Olpull. Yo-yo pipe & work thru nipple again - still tagging up on TOl. Give up on L TP & decide to POOH & inspect BHA. 15:20 - 17:15 1.92 CASE N DPRB RUNPRD Pull thru SWS nipple with 10k O/pull. POOH with L TP & running tools. 17:15 - 18:00 0.75 CASE N DPRB RUNPRD OOH. PJSM. SIB injector. UD l TP & running tools. Inspect BHA & found indentation on mule shoe inside bevel. Review situation with ANC & agree to modify mule shoe with an AL bull nose to ensure entry into the deployment sleeve. Will millout bullnose after setting l TP. 18:00 - 23:30 5.50 CASE N DPRB RUNPRD W. 0 Baker to modify mule shoe, install new seals, inspect packer. 23:30 - 00:00 0.50 CASE N DPRB RUNPRD Bring tools to rig floor. MU BHA. 11/26/2004 00:00 - 00:30 0.50 CASE N DPRB RUNPRD Finish MU BHA. 00:30 - 02:30 2.00 CASE N DPRB RUNPRD RIH with lTP. - Slow down to 10 fpm at 10,850' MD, pumping minimum rate. - Did not see nipple 02:30 - 03:00 0.50 CASE P RUNPRD RIH to 10,928' (pressure increase noticed) PU, confirm. - PU 29k. SO 15k. - Circ min rate, 130 psi. - 10,925.4' MD, pressure increase started. SD pump, tag up at 10,932.2' MD. SO to 5k (to 9k Ibs) 10,934.4' MD Position reel. load ball (5/8" steel). 03:00 - 03:30 0.50 CASE P RUNPRD Circulate ball around. - Ball on seat at 32.6 bbls. RBIH. Tag at 10,934.6' MD with 5k slacked off. PU to string weight, plus 1.5' (10,927.5' MD). Pressure up to 1700 psi to set the slips. Slack off to 9k to engage the element (10,934.0'). Bleed pressure off to zero. PU to 29k PU, did not set. RBIH to 10,934.6' MD. PU to string wt plus 1.5', 10,927.5' again. Pressure up to 1900 psi. Slack off to 9k (10,934' MD). Bleed pressure off. PU to string wt plus 1.5 It to 10,927.5' MD. Printed: 11/29/2004 11 :52:30 AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: C-41 C-41 REENTER+COMPLETE NORDIC CALISTA NORDIC 1 Start: Rig Release: Rig Number: 11 /8/2004 11/26/2004 N1 Spud Date: 8/12/1993 End: 11/26/2004 11126/2004 03:00 - 03:30 0.50 CASE P RUNPRD Pressure up to 2100 psi. Slack off to 9k (10,931.7' MD). Bleed pressure off. Slack off to 9k (10,932.6' MD). PU to string wt. 03:30 - 04:00 0.50 CASE. P RUNPRD Line up to pressure test for 30 minutes, chart same. Initial pressure at 1970 psi, allow initial bleed. Time Pressure Delta 0 1930 5 1901 29 10 1882 19 15 1868 14 20 1868 0 25 1868 0 30 1868 0 04:00 - 04:15 0.25 CASE P RUNPRD Bleed pressure off. Slack off to 10k. Pressure up to shear ball seat, 2900 psi to shear. Bleed pressure off. PU, 35k. SO to 11 k. PU to 35k. SO to 11 k. Pump down coil at 0.8 bpm, PU again to 27k, free. From CNL TOL, top of 3-1/2" KB Packer is @ 10896'. 04:15 - 06:00 1.75 CASE P RUNPRD POOH. 06:00 - 07:00 1.00 CASE P RUNPRD COH. PJSM. SIB injector. LID Baker running tools. 07:00 - 07:45 0.75 CASE N DPRB RUNPRD M/U milling BHA #20 with Bkr pilot-step mill, 1-11/16" motor, lower MHA, XIO, 2 jts of 1" CSH tbg, XIO & upper MHA. MIU injector. 07:45 - 09:00 1.25 CASE N DPRB RUNPRD RIH with Baker milling BHA #20 @ 100fpm to 10850'. 09:00 - 09:15 0.25 CASE N DPRB RUNPRD Up wt at 10850' = 29k, Dwn wt = 18k. RIH @ 1 Of pm circ @ 0.23bpm/280psi. Lightly tag @ 10931'. 09:15 - 12:35 3.33 CLEAN N RUNPRD Ease into milling from 10931'. Mill @ with 0.8710.87bpm, 1200/1350psi. Mill thru & tag @ 10933.6' - bullnose or part of it must have fallen into the 2-3/8" liner. Ease back into milling from 10933.5'. Mill with several stalls on bullnose. Finally get a bite & start time milling @ 0.1 '/1 Omins. Time mill to 10935' & mill thru bull nose. PUH clean to 10924'. 12:35 - 13:00 0.42 CLEAN N RUNPRD RIH clean to 10973.5'. Drift TOL & seal assy clean 2x from 10890' to 10924'. 13:00 - 14:30 1.50 CLEAN N RUNPRD POOH milling BHA to 2500'. 14:30 - 15:30 1.00 CLEAN P RUNPRD Start pumping MeOH. Lay in MeOH @ 60/40 from 2500' to surface. FP CT reel & surface lines. 15:30 - 16:00 0.50 CLEAN P RUNPRD OOH. PJSM. SIB injector & LID Baker milling BHA. Meanwhile blow down hardline with air & cleanout rig pits & outside tanks. 16:00 - 16:15 0.25 RIGD P PÒST PJSM for ND BOP. 16:15 - 17:30 1.25 RIGD P POST SI tree valves. N/D BOP. NU & P/test tree cap. Rig released @ 17:30 on 11/26/04. Printed: 11/29/2004 11 :52:30 AM . . 06-Dec-04 AOGCC Robin Deason 333 W. 7th Ave. Suite 100 Anchorage, AK 99501 DEFINITIVE Re: Distribution of Survey Data for Well C-41A Dear Dear Sir/Madam: Enclosed are two survey hard copies and one disk with the *.PTT and *.PDF files. Tie-on Survey: Window / Kickoff Survey: Projected Survey: 12,174.81' MD 12,200.00' MD 13,513.00' MD (if applicable) PLEASE ACKNOWLEDGE RECEIPT BY SENDING AN EMAIL TO CARL.ULRICH@HALLlBURTON.COM OR SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Carl Ulrich 6900 Arctic Blvd. Anchorage, AK 99518 Date)¡ µ~'1 Signed 1l~l oiL Please call me at 273-3545 if you have any questions or concerns. Regards, William T. Allen Survey Manager Attachment(s) Halliburton Sperry-Sun North Slope Alaska BPXA C-41A Job No. AKMW3385029, Surveyed: 21 November, 2004 Survey Report 2 December, 2004 Your Ref: API 500292238501 Surface Coordinates: 5959291.47 N, 664510.42 E (70· 17' 42.3298" N, 148· 40' 04.3629" W) Grid Coordinate System: NAD27 Alaska State Planes, Zone 4 Kelly Bushing Elevation: 72. 60ft above Mean Sea Level Sf::JEr'"'r'"'Y-SUf"1 ORIL-L.ING SeAVIi::eS A Halliburton Company DEFI ITIVE . . Survey Ref: svy4450 Halliburlon Sperry-Sun Survey Report for C-41A Your Ref: API 500292238501 Job No. AKMW3385029, Surveyed: 21 November, 2004 North Slope Alaska BPXA Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (0/100ft) 12174.81 90.700 220.660 8943.06 9015.66 54.37 N 5329.02 E 5959462.46 N 669836.97 E 1771.54 Tie On Point 12200.00 91.890 223.140 8942.49 9015.09 35.62 N 5312.20 E 5959443.35 N 669820.57 E 10.917 1783.41 Window Point 12230.47 81.560 218.900 8944.23 9016.83 12.71 N 5292.26 E 5959420.01 N 669801.14 E 36.631 1798.12 12264.00 86.920 217.850 8947.59 9020.19 13.43 5 5271.56 E 5959393.42 N 669781.01 E 16.286 1815.60 12298.05 87.540 221.710 8949.24 9021.84 39.57 5 5249.80 E 5959366.82 N 669759.83 E 11 .468 1832.72 12334.57 89.380 226.280 8950.22 9022.82 65.82 5 5224.45 E 5959340.01 N 669735.06 E 13.485 1848.72 . 12364.94 87.890 230.850 8950.94 9023.54 85.91 S 5201.70E 5959319.43 N 669712.75 E 15.823 1859.81 12396.88 88.330 234.900 8952.00 9024.60 105.175 5176.25 E 5959299.62 N 669687.73 E 12.748 1869.21 12425.76 88.510 239.110 8952.79 9025.39 120.895 5152.04E 5959283.38 N 669663.88 E 14.585 1875.70 12463.54 86.480 243.160 8954.44 9027.04 139.105 5119.00 E 5959264.44 N 669631.24 E 11 .982 1881.52 12492.52 86.920 246.670 8956.11 9028.71 151.37 S 5092.80 E 5959251.61 N 669605.31 E 12.187 1884.08 12522.77 89.120 251.240 8957.16 9029.76 162.225 5064.59 E 5959240.14 N 669577.35 E 16.758 1884.63 12550.91 88.510 252.120 8957.74 9030.34 171.065 5037.89 E 5959230.71 N 669550.84 E 3.805 1883.80 12577.21 88.240 256.520 8958.49 9031.09 178.175 5012.58 E 5959223.06 N 669525.70 E 16.755 1881.82 12609.37 88.420 261.970 8959.42 9032.02 184.165 4981.01 E 5959216.37 N 669494.27 E 16.949 1876.66 12649.83 89.470 269.350 8960.17 9032.77 187.225 4940.70 E 5959212.43 N 669454.04 E 18.421 1865.75 12685.21 87.710 272.510 8961.04 9033.64 186.655 4905.34 E 5959212.23 N 669418.67 E 10.221 1853.12 12714.08 89.740 276.730 8961.68 9034.28 184.32 5 4876.58 E 5959213.93 N 669389.87 E 16.217 1841.10 12744.98 91.320 280.250 8961.40 9034.00 179.76 S 4846.03 E 5959217.82 N 669359.22 E 12.486 1826.36 12773.09 92.020 284.470 8960.58 9033.18 173.75 S 4818.59 E 5959223.23 N 669331.66 E 15.211 1811.32 12806.48 92.020 290.270 8959.40 9032.00 163.79 S 4786.75 E 5959232.49 N 669299.61 E 17.360 1791.08 12837.15 92.720 295.190 8958.13 9030.73 151.955 4758.50 E 5959243.70 N 669271.10 E 16.190 1770.29 12863.64 91.670 296.420 8957.12 9029.72 140.435 4734.67 E 5959254.70 N 669247.03 E 6.102 1751.32 . 12891.11 91.410 293.610 8956.38 9028.98 128.825 4709.79 E 5959265.76 N 669221.90 E 10.269 1731.90 12925.30 86.750 289.390 8956.93 9029.53 116.30 5 4678.00 E 5959277.59 N 669189.84 E 18.385 1709.25 12955.59 88.510 285.700 8958.18 9030.78 107.185 4649.15 E 5959286.07 N 669160.80 E 13.487 1690.82 12989.65 90.440 279.540 8958.49 9031.09 99.745 4615.93 E 5959292.78 N 669127.43 E 18.951 1672.47 13026.37 87.270 278.310 8959.23 9031.83 94.05 5 4579.66 E 5959297.68 N 669091.05 E 9.260 1654.71 13061.99 89.740 274.270 8960.16 9032.76 90.155 4544.28 E 5959300.81 N 669055.59 E 13.290 1638.95 13090.89 90.610 278.310 8960.07 9032.67 86.98 5 4515.56 E 5959303.34 N 669026.80 E 14.300 1626.15 13119.05 90.530 282.360 8959.79 9032.39 81.93 5 4487.87 E 5959307.79 N 668999.00 E 14.384 1611.93 13151.21 88.590 286.050 8960.03 9032.63 74.045 4456.70 E 5959314.99 N 668967.67 E 12.962 1593.86 13191.62 90.610 294.660 8960.32 9032.92 60.00 5 4418.85E 5959328.20 N 668929.52 E 21.884 1567.72 13220.91 90.700 296.600 8959.98 9032.58 47.335 4392.44 E 5959340.29 N 668902.85 E 6.630 1546.78 13253.88 89.120 296.240 8960.03 9032.63 32.66 5 4362.92 E 5959354.31 N 668873.01 E 4.915 1522.90 2 December, 2004· 17:17 Page 2 of 4 DrillQuest 3.03.06.006 Halliburton Sperry-Sun Survey Report for C-41A Your Ref: API 500292238501 Job No. AKMW3385029, Surveyed: 21 November, 2004 North Slope Alaska BPXA Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (0/100ft) 13278.53 88.590 289.560 8960.53 9033.13 23.08 S 4340.23 E 5959363.39 N 668850.11 E 27.179 1506.13 13317.83 89.210 285.350 8961.28 9033.88 11 .29 S 4302.75 E 5959374.36 N 668812.39 E 10.826 1482.24 13355.82 91.050 282.710 8961.20 9033.80 2.08 S 4265.90 E 5959382.75 N 668775.35 E 8.470 1460.98 13383.71 92.020 279.540 8960.45 9033.05 3.29 N 4238.55 E 5959387.53 N 668747.88 E 11 .882 1446.57 13409.28 90.610 277.260 8959.86 9032.46 7.03 N 4213.26 E 5959390.71 N 668722.52 E 10.482 1434.42 13442.66 91.760 273.920 8959.17 9031.77 10.28 N 4180.05E 5959393.24 N 668689.25 E 10.580 1420.00 . 13472.52 92.550 269.170 8958.05 9030.65 11.08 N 4150.23 E 5959393.39 N 668659.42 E 16.115 1409.05 13494.73 92.550 267.240 8957.06 9029.66 10.39 N 4128.06 E 5959392.21 N 668637.26 E 8.681 1402.12 13513.00 92.550 267.240 8956.25 9028.85 9.51 N 4109.83 E 5959390.93 N 668619.06 E 0.000 1396.71 Projected Survey All data is in Feet (US Survey) unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Global Northings and Eastings are relative to NAD27 Alaska State Planes, Zone 4. The Dogleg Severity is in Degrees per 100 feet (US Survey). Vertical Section is from Well Reference and calculated along an Azimuth of 160.000° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 13513.00ft., The Bottom Hole Displacement is 41 09.84ft., in the Direction of 89.867° (True). Comments Measured Depth (ft) Station Coordinates TVD Northings Eastings (ft) (ft) (ft) Comment . 12174.81 12200.00 13513.00 9015.66 9015.09 9028.85 54.37 N 35.62 N 9.51 N 5329.02 E 5312.20 E 4109.83E Tie On Point Window Point Projected Survey 2 December, 2004 - 17:17 Page 3 of4 DriflQuest 3.03.06.006 North Slope Alaska Halliburton Sperry-Sun Survey Report for C-41A Your Ref: API 500292238501 Job No. AKMW3385029, Surveyed: 21 November, 2004 BPXA Survey tool program for C-41A Fro m Measured Vertical Depth Depth (ft) (ft) 0.00 2 December, 2004· 17:17 To Measured Vertical Depth Depth Survey Tool Description (ft) (ft) 0.00 13513.00 . 9028.85 MWD Magnetic (C-41) . Page 4 of 4 DríllQuest 3.03.06.006 . . 06-Dec-04 AOGCC Robin Deason 333 W. 7th Ave. Suite 100 Anchorage, AK 99501 DEFINITIVE Re: Distribution of Survey Data for Well C-41A PB1 Dear Dear Sir/Madam: Enclosed are two survey hard copies and one disk with the *.PTT and *.PDF files. Tie-on Survey: Window / Kickoff Survey: Projected Survey: 11,493.17' MD 11,502.00 I MD 13,088.00' MD (if applicable) PLEASE ACKNOWLEDGE RECEIPT BY SENDING AN EMAIL TO CARL.ULRICH@HALLlBURTON.COM OR SIGNING AND RETURNING A COpy OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry-Sun Drilling Services Attn: Carl Ulrich 6900 Arctic Blvd. Anchorage, AK 99518 Date '), ~~~t t/} ~ Signed !~~ oL!~) Please call me at 273-3545 if you have any questions or concerns. Regards, William 1. Allen Survey Manager Attachment(s) Halliburton Sperry-Sun North Slope Alaska BPXA C-41APB1 Job No. AKZZ3385029, Surveyed: 13 November, 2004 Survey Report 2 December, 2004 Your Ref: API 500292238570 Surface Coordinates: 5959291.47 N, 664510.42 E (70· 17' 42.3298" N, 148· 40' 04.3629" W) Grid Coordinate System: NAD27 Alaska State Planes, Zone 4 Kelly Bushing Elevation: 72. 60ft above Mean Sea Level spe'r""r""Y-SUf'1 CAlL LING seAVIc:es A Halliburton Company DEFINITIVE . . Survey Ref: svy4449 Halliburton Sperry-Sun Survey Report for C-41APB1 Your Ref: API 500292238570 Job No. AKZZ3385029, Surveyed: 13 November, 2004 North Slope Alaska BPXA Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (0/100ft) 11493.17 90.980 92.810 8945.35 9017.95 535.12 N 5123.88 E 5959938.61 N 669621.36 E 1249.62 Tie On Point 11502.00 91.030 92.990 8945.19 9017.79 534.67 N 5132.69E 5959938.35 N 669630.18 E 2.112 1253.06 Window Point 11534.47 96.330 98.000 8943.11 9015.71 531.57 N 5164.93E 5959935.96 N 669662.47 E 22.436 1266.99 11564.69 103.620 102.660 8937.87 9010.47 526.26 N 5194.18 E 5959931.29 N 669691.84 E 28.500 1282.00 11597.51 98.700 107.720 8931.52 9004.12 517.81 N 5225.23 E 5959923.52 N 669723.07 E 21.292 1300.55 11632.82 90.000 113.170 8928.84 9001 .44 505.52 N 5258.17 E 5959911.96 N 669756.27 E 29.043 1323.37 . 11662.32 84.810 117.720 8930.18 9002.78 492.87 N 5284.77 E 5959899.89 N 669783.14 E 23.383 1344.35 11697.14 87.010 123.100 8932.66 9005.26 475.30 N 5314.71 E 5959882.98 N 669813.45 E 16.655 1371.11 11725.14 86.920 130.480 8934.15 9006.75 458.56 N 5337.09 E 5959866.74 N 669836.19 E 26.322 1394.48 11754.97 87.010 138.040 8935.73 9008.33 437.79 N 5358.40 E 5959846.43 N 669857.96 E 25.310 1421.30 11785.90 90.090 147.360 8936.51 9009.11 413.22 N 5377.12E 5959822.28 N 669877.20 E 31.723 1450.78 11817.65 92.640 155.440 8935.76 9008.36 385.38 N 5392.30 E 5959794.78 N 669892.99 E 26.677 1482.14 11850.64 90.090 164.410 8934.97 9007.57 354.44 N 5403.60 E 5959764.09 N 669904.97 E 28.258 1515.08 11877.91 95.100 167.040 8933.73 9006.33 328.05 N 5410.32 E 5959737.85 N 669912.26 E 20.743 1542.18 11912.04 94.660 171.610 8930.83 9003.43 294.64 N 5416.62 E 5959704.59 N 669919.29 E 13.404 1575.72 11942.60 93.510 184.270 8928.64 9001.24 264.24 N 5417.71 E 5959674.22 N 669921.05 E 41.491 1604.66 11972.96 89.470 190.770 8927.85 9000.45 234.17 N 5413.74 E 5959644.08 N 669917.74 E 25.198 1631.56 12013.24 85.960 194.990 8929.46 9002.06 194.95 N 5404.77 E 5959604.67 N 669909.63 E 13.619 1665.35 12057.37 81.470 203.430 8934.30 9006.90 153.57 N 5390.37 E 5959562.98 N 669896.14 E 21.557 1699.30 12103.53 84.460 211.340 8939.96 9012.56 112.94 N 5369.31 E 5959521.90 N 669875.97 E 18.197 1730.29 12138.26 87.360 212.920 8942.44 9015.04 83.60 N 5350.89 E 5959492.17 N 669858.19 E 9.503 1751.55 12174.81 90.700 220.660 8943.06 9015.66 54.37 N 5329.02 E 5959462.46 N 669836.97 E 23.058 1771.54 12212.22 92.460 224.350 8942.02 9014.62 26.80 N 5303.76 E 5959434.35 N 669812.32 E 10.924 1788.81 . 12242.76 90.000 224.700 8941.37 9013.97 5.04 N 5282.35 E 5959412.12 N 669791.39 E 8.136 1801.94 12296.15 90.180 238.240 8941 .28 9013.88 28.158 5240.68 E 5959378.04 N 669750.46 E 25.363 1818.87 12326.34 94.220 240.700 8940.13 9012.73 43.478 5214.70 E 5959362.15 N 669724.82 E 15.664 1824.38 12359.89 94.570 247.730 8937.55 9010.15 58.01 8 5184.60 E 5959346.95 N 669695.05 E 20.918 1827.75 12404.36 92.550 257.220 8934.78 9007.38 71.35 8 5142.33 E 5959332.68 N 669653.08 E 21.777 1825.83 12434.94 89.210 261.790 8934.31 9006.91 76.92 S 5112.27 E 5959326.46 N 669623.15 E 18.507 1820.78 12468.44 84.110 263.200 8936.26 9008.86 81.298 5079.13 E 5959321.37 N 669590.11 E 15.793 1813.55 12504.13 79.980 262.670 8941 .20 9013.80 85.63 8 5044.06 E 5959316.26 N 669555.14 E 11 .665 1805.64 12542.05 77.780 270.930 8948.53 9021.13 87.728 5006.95 E 5959313.36 N 669518.09 E 22.145 1794.91 12572.68 78.050 268.120 8954.94 9027.54 87.978 4977.00 E 5959312.46 N 669488.15 E 9.014 1784.90 12604.08 80.330 267.060 8960.83 9033.43 89.27 8 4946.19 E 5959310.48 N 669457.37 E 7.982 1775.58 12652.64 88.330 268.470 8965.63 9038.23 91.148 4897.94 E 5959307.55 N 669409.18 E 16.726 1760.84 2 December, 2004 - 16:47 Page 2 of4 DrillQuest 3.03.06.006 HaJ/iburlon Sperry-Sun Survey Report for C-41APB1 Your Ref: API 500292238570 Job No. AKZZ3385029, Surveyed: 13 November, 2004 North Slope Alaska BPXA Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (°/1 DOft) 12686.68 93.160 263.550 8965.18 9037.78 93.51 S 4864.01 E 5959304.44 N 669375.31 E 20.250 1751.46 12739.13 96.770 266.360 8960.64 9033.24 98.11 S 4811.97E 5959298.71 N 669323.38 E 8.709 1737.98 12778.44 96.150 271.990 8956.22 9028.82 98.67 S 4772.93 E 5959297.29 N 669284.37 E 14.318 1725.16 12812.87 95.360 269.880 8952.76 9025.36 98.11 S 4738.68 E 5959297.10 N 669250.11 E 6.515 1712.92 12851.04 86.130 265.310 8952.27 902487 99.71 S 4700.60 E 5959294.67 N 669212.07 E 26.977 1701.40 12885.87 90.530 270.760 8953.28 9025.88 100.90 S 4665.82 E 5959292.71 N 669177.34 E 20.102 1690.62 . 12925.38 88.680 266.710 8953.56 9026.16 101.77 S 4626.34 E 5959290.98 N 669137.87 E 11 .269 1677 .94 12954.79 88.940 264.950 8954.17 9026.77 103.91 S 4597.01 E 5959288.20 N 669108.60 E 6.048 1669.92 12993.04 92.460 270.050 8953.70 9026.30 105.58 S 4558.82 E 5959285.69 N 669070.46 E 16.198 1658.42 13028.97 92.900 270.930 8952.02 9024.62 105.27 S 4522.93 E 5959285.22 N 669034.57 E 2.736 1645.86 13056.71 89.650 269.880 8951.40 9024.00 105.08 S 4495.20 E 5959284.80 N 669006.84 E 12.312 1636.19 13088.00 89.650 269.880 8951.59 9024.19 105.14 S 4463.91 E 5959284.05 N 668975.56 E 0.000 1625.55 Projected Survey All data is in Feet (US Survey) unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference. Northings and Eastings are relative to Well Reference. Global Northings and Eastings are relative to NAD27 Alaska State Planes, Zone 4. The Dogleg Severity is in Degrees per 100 feet (US Survey). Vertical Section is from Well Reference and calculated along an Azimuth of 160.000° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 13088.00ft., The Bottom Hole Displacement is 4465.15ft., in the Direction of 91.349° (True). . 2 December, 2004 - 16:47 Page 3 of4 DrillQuest 3.03.06.006 Halliburton Sperry-Sun Survey Report for C-41APB1 Your Ref: API 500292238570 Job No. AKZZ3385029, Surveyed: 13 November, 2004 North Slope Alaska BPXA Comments Measured Depth (ft) Station Coordinates TVD Northings Eastings (ft) (ft) (ft) Comment 11493.17 11502.00 13088.00 9017.95 9017.79 9024.19 535.12 N 534.67 N 105.14 S 5123.88E 5132.69 E 4463.91 E Tie On Point Window Point Projected Survey . Survey tool program for C-41APB1 From Measured Vertical Depth Depth (ft) (ft) To Measured Vertical Depth Depth Survey Tool Description (ft) (ft) 0.00 0.00 13088.00 9024.19 MWD Magnetic (C-41) . 2 December, 2004 - 16:47 Page 4 of 4 DríllQuest 3.03.06.006 TREE 4-1/2" -5M CIW FMC 3-1/2" 13-3/8" CSG, 68#, L-80, 10 = 12.415" ST MD WO 2 4205 4165 6 1 6479. 51 06/06/04 7" LNR I 9-518" CSG, 47#, NT-80, ID = 8.681" IIr. 10876' 3-1/2" SWS NIP, I I l3-1/2" TBG, 9.2#, L-80, .0087 bpf, 10 = TI TOP OF 4-1/2" SL TD LNR T' LNR, 29#, NT-80, .0371 bpf, 10 = 6.184" PeTD 4-1/2" SL TO LNR, 13.5#, L-80, 10 = 3.845" ORIGINAL COMMENTS REV BY DATE 09/07/93 09/17/01 05/03/02 07/05/03 09/15/03 06/06/04 RNlTP CMO/KK tlilAX CMOITLP KB aEV A TICN CMO/TLP PERF ANGLE JLJ/KAK GL V C/O . BP C-41A Sidetrack ~ t;- è.Ð+ (f6 et(P' . ., (f)1{ {o e, ~~ ctyJS. ~4~ H[2.lWOf CTD Sidetrack Summary 1) Set mechanical whipstock in the 4-112" slotted liner 2) Drill sidetrack 3) Run liner, cement and perforate 4) Set a liner top packer Mud Program: · Well kill: 8.4 - 8.9 ppg brine · Milling/drilling: 8.5 - 8.9 ppg used PIo Pro or biozan for milling, new Flo Pro for drilling. Disposal: · All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. · All Class I wastes will go to Pad 3 for disposal. Casing Program: · 2 3/8" solid cemented liner completion 10935' - 13350'. · The liner cement volume is planned to be -8.5 bbls of 15.8 ppg class G. Casin2lLiner Information 133/8", L-80, 68#, Burst 5020 psi; collapse 2260 psi 95/8", NT-80 47#, Burst 6870, collapse 4750 psi 7", NT-80, 29#, Burst 8160, collapse 7020 psi Planned Liner 2 3/8" L-80 STL 4.6#, Burst 11200 psi; collapse 11780 psi (hole size 3.0") Well Control: · BOP diagram is attached. · Pipe rams, blind rams and the CT pack off will be pressure tested to 400 psi and to 3500 psi. · The annular preventer will be tested to 400 psi and 2500 psi. Directional · See attached directional plan. Max. planned hole angle is 102 deg. · Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. · Distance to nearest property line: 27,243' ft · Distance to nearest well within pool: 600 ft Logging · MWD directional and Gamma Ray will be run over all of the open hole section. · MCNL will be run cased hole. Hazards · C pad is not designated as an H2S pad. · There is one planned fault crossing. · Lost circulation risk is considered low. Reservoir Pressure · Res. press. is estimated to be 3235 psi at 8800'ss (7.1 ppg EMW). Max. surface pressure with gas (0.10 psi/ft) to surface is 2355 psi. TREE = WELLHEAD = AcTuATOR; KB. EL8I = BF. EL8I = KOP= <, .______up~" ~ Max Angle = Datum MD = Datum TVD = 4-1/2" -5M CNV FMC BAKER 72.6' 34' 4522' 95 @ 12157' 1Öä3i 8800' SS . C-41 ~NOTES: HORIZONTALWELL·SLTDLNR . 2014' H 3-1/2" SSSV OTIS LANDING NIP, ID = 2.750" I 13-3/8" CSG, 68#, L-80, ID = 12.415" H 3219' r- Minimum ID = 2.750" @ 10876' 3-1/2" SWS NIPPLE L ST MD TVD 2 4205 4165 1 7035 6479 GAS LIFT MANDRELS D8I TYÆ VLV LATCH 6 CAMCO DMY RK 51 CAMCO DMY RK PORT DATE o 06/06/04 o 06/06/04 1 TOP OF 7" LNR H 9949' ""I I - ----i 10876' H 3-1/2" NIP, SWS, ID = 2.750" I Z Z ---l 10921' H 7" x 3-1/2" BAKER SABLI-3 PKR, ID = 3.938" - ----i 10937' H 3-1/2" SWS NIP, ID = 2.725" I 9-5/8" CSG, 47#, NT-80, ID = 8.681" H 10117' ~ .. 13-1/2" TBG, 9.2#, L-80, .0087 bpf. ID = 2.992" H 10941' ~ 10941' H 3-1/2" TBG TAIL, WLEG, ID = 2.992" I 1 10947' H ElMD TT LOGGED 08/08/97 I 0 1 TOP OF 4-1/2" SL TO LNR H 11309' I ~ r-1 11309' 11 7" x 4-1/2" BAKER FB-2 PKR W/SEAL BORE EXTENSION ....... ----i 11316' H PORTED PUP JOINT I 7" LNR, 29#, NT-80, .0371 bpf, ID = 6.184" H 11397' I - ~ ÆRFORA TION SUMMARY REF LOG: SPERRY SUN MWD/GR ON 08/13/93 ANGLE AT TOP ÆRF: 75 @ 11109' Note: Refer to A-oduction DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DA TE 2-1/2" 4 11109 -11129 0 04/04/95 2-1/2" 4 11168 - 11188 0 04/04/95 4-1/2" SL TO 11405 - 12431 SL TO 09/04/93 I PBTD H 12432' ~ 4-1/2" SLTO LNR, 13.5#, L-80, ID = 3.845" H 12453' DATE 09/07/93 09/17/01 05/03/02 07/05/03 09/15/03 06/06/04 R8I BY COMMENTS ORIGINAL COM PLETION RNITP CORRECTIONS CMO/KK MAX ANGLE CORRECTION CMO/TLP KB El81 A TION CORRECTION CMOITLP PERF ANGLE CORRECTION JLJ/KAK GLV C/O DA TE R8I BY COMMENTS 06/22/04 DFR/KAK CORRECTIONS PRUDHOE BAY UNrr WELL: G-41 ÆRMrr No: 1930990 API No: 50-029-22385-00 SEC 19, T11N, R14E, 1930' FNL & 884' FEL BP Exploration (Alaska) TREE = WELLHEAD = 4-1/2" -5M CWV FMC 95 8800' SS 13-3/8" CSG, 68#, L-80, ID'" 12.415" @ LNR 9-5/8" CSG, 47#, NT-80, ID I 3-1/2" TBG, 9.2#, L-80, .0087 bpf, ID = 2.992" PERFORATION SUMMARY REF LOG: SPERRY SUN MWDlGR ON 08/13/93 ANGLE AT TOP PERF: 75 @ 11109' Note: Refer to for SIZE SPF 2-1/2" 4 2-1/2" 4 4-1/2" SL TO 11109 11129 11168 118B 11405 - 12431 I TOP OF 4-1/2" 7" LNR, NT-BO, 10=6.184" 4-1/2" SL TO LNR, 13.5#, L-80, 10 = 3.845" DATE 09/07/93 BY 05/03/02 07/05/03 09/15/03 06/06/04 CMO/KK MAX CMO/TLP KB ELEVATION CORRECTION CMOITLP PERF JLJ/KAK GL V ClO I DATE ST TVD 2 4205 '4165 1 7035 6479 I¡. SSSV PORT DATE o o 3-1/2" 7"X IT Obp BP-GDB Baker Hughes INTEQ Planning Report . . Field: Prudhoe Bay North Slope UNITED STATES Map System:US State Plane Coordinate System 1927 Goo Datum: NAD27 (Clarke 1866) Sys Datum: Mean Sea Level Map Zone: Coordinate System: Geomagnetic Model: Alaska, Zone 4 Well Centre bggm2004 Site: PB C Pad TR-11-14 UNITED STATES: North Slope Site Position: Northing: From: Map Easting: Position Uncertainty: 0.00 ft Ground Level: 0.00 ft 5957218.72 ft 662550.03 ft Latitude: 70 17 Longitude: 148 41 North Reference: Grid Convergence: 22.367 N 2.797 W True 1.24 deg Well: C-41 Slot Name: 41 C-41 Well Position: +N/-S 2030.62 ft Northing: 5959292.06 ft Latitude: 70 17 42.336 N +E/-W 2004.71 ft Easting : 664510.23 ft Longitude: 148 40 4.368 W Position Uncertainty: 0.00 ft Wellpath: Plan#6 C-41A 500292238501 Current Datum: 48 : 41 8/12/1993 00:00 Magnetic Data: 10/7/2004 Field Strength: 57618 nT Vertical Section: Depth From (TVD) ft 39.60 +N/-S ft 0.00 Drilled From: Tie-on Depth: Above System Datum: Declination: Mag Dip Angle: +E/-W ft 0.00 C-41 11493.17 ft Mean Sea Level 25.04 deg 80.84 deg Direction deg 160.00 Height 72.60 ft Targets C-41A Polygon4.1 0.00 -389.01 5337.91 5959020.00 669855.00 70 17 38.491 N 148 37 28.798 W -Polygon 1 0.00 -389.01 5337.91 5959020.00 669855.00 70 17 38.491 N 148 37 28.798 W -Polygon 2 0.00 -218.42 4856.49 5959180.00 669370.00 70 17 40.172 N 148 37 42.825 W -Polygon 3 0.00 -101.29 4303.89 5959285.00 668815.00 70 1741.327 N 148 37 58.929 W -Polygon 4 0.00 -105.93 4058.71 5959275.00 668570.00 70 1741.283 N 148 38 6.075 W -Polygon 5 0.00 69.04 4062.54 5959450.00 668570.00 70 17 43.004 N 148 38 5.960 W -Polygon 6 0.00 -20.14 4480.72 5959370.00 668990.00 70 1742.125 N 148 37 53.774 W -Polygon 7 0.00 -62.50 5044.96 5959340.00 669555.00 70 1741.704 N 148 37 37.329 W -Polygon 8 0.00 -200.68 5417.05 5959210.00 669930.00 70 17 40.343 N 148 37 26.487 W C-41A Fault 1 0.00 150.86 4894.59 5959550.00 669400.00 70 17 43.804 N 148 3741.708 W -Polygon 1 0.00 150.86 4894.59 5959550.00 669400.00 70 17 43.804 N 148 3741.708 W -Polygon 2 0.00 -141.17 5668.43 5959275.00 670180.00 70 17 40.926 N 148 37 19.159 W C-41A Fault 3 0.00 -186.27 4302.02 5959200.00 668815.00 70 17 40.492 N 148 3758.984 W -Polygon 1 0.00 -186.27 4302.02 5959200.00 668815.00 70 1740.492 N 148 37 58.984 W -Polygon 2 0.00 -521.69 5229.97 5958885.00 669750.00 70 1737.187N 148 3731.946 W C-41A Fault 2 0.00 39.64 4492.03 5959430.00 669000.00 70 17 42.712 N 148 37 53.443 W -Polygon 1 0.00 39.64 4492.03 5959430.00 669000.00 70 17 42.712 N 148 37 53.443 W -Polygon 2 0.00 338.27 4558.58 5959730.00 669060.00 70 17 45.649 N 148 37 51.498 W C-41A T4.2 8937.00 -16.42 5316.06 5959392.00 669825.00 70 1742.156 N 148 37 29.427 W C-41A T4.1 8948.00 485.04 5073.96 5959888.00 669572.00 70 17 47.089 N 148 37 36.473 W C-41A T4.3 8963.00 -178.52 5018.40 5959223.43 669530.98 70 17 40.563 N 148 37 38.105 W C-41A T4.4 8966.00 -29.24 4114.84 5959352.89 668624.44 70 17 42.037 N 148 38 4.437 W Obp BP-GDB Baker Hughes INTEQ Planning Report . . Annotation 11493.17 8945.35 TIP 11500.00 8945.23 KOP 11520.00 8944.56 end 9 DLS I begin 24 DLS 11545.00 8942.10 4 11570.00 8937.60 5 11595.00 8932.93 6 11662.00 8931.54 7 11772.00 8937.80 8 12022.00 8936.46 end 24 DLS I begin 12 DLS 12272.00 8935.93 10 12488.00 8947.96 11 12738.00 8963.51 12 12883.00 8964.70 13 13108.00 8965.11 14 13350.00 8965.57 TD Plan: Plan #6 Date Composed: 1017/2004 KO in 4.5" slotted liner Version: 1 Principal: Yes Tied-to: From: Definitive Path Plan Section Information 11493.17 90.98 92.81 8945.35 535.12 5123.91 0.00 0.00 0.00 0.00 11500.00 91.02 92.95 8945.23 534.78 5130.73 2.13 0.59 2.05 74.05 11520.00 92.82 92.95 8944.56 533.75 5150.69 9.00 9.00 0.00 0.00 11545.00 98.46 95.02 8942.10 532.03 5175.50 24.00 22.54 8.29 20.00 11570.00 102.28 99.72 8937.60 528.88 5199.87 24.00 15.30 18.80 50.00 11595.00 99.23 104.98 8932.93 523.62 5223.85 24.00 -12.19 21.05 120.00 11662.00 83.15 104.98 8931.54 506.36 5288.35 24.00 -24.00 0.00 180.00 11772.00 90.43 130.42 8937.80 455.68 5384.68 24.00 6.61 23.12 75.00 12022.00 90.13 190.42 8936.46 230.76 5464.68 24.00 -0.12 24.00 90.10 12272.00 90.11 220.42 8935.93 7.53 5358.59 12.00 -0.01 12.00 90.00 12488.00 83.60 245.56 8947.96 -121.30 5187.94 12.00 -3.01 11.64 105.00 12738.00 89.42 275.06 8963.51 -162.61 4944.76 12.00 2.32 11.80 80.00 12883.00 89.65 292.46 8964.70 -128.25 4804.46 12.00 0.16 12.00 89.30 13108.00 90.14 265.47 8965.11 -93.52 4584.26 12.00 0.22 -12.00 271.00 13350.00 89.64 294.50 8965.57 -52.01 4348.47 12.00 -0.21 12.00 91.00 Survey 11493.17 90.98 92.81 8945.35 535.12 5123.91 5959939.16 669620.84 1249.63 0.00 0.00 TIP 11500.00 91.02 92.95 8945.23 534.78 5130.73 5959938.97 669627.67 1252.28 2.13 74.05 KOP 11520.00 92.82 92.95 8944.56 533.75 5150.69 5959938.38 669647.65 1260.08 9.00 0.00 end 9 DL 11525.00 93.95 93.36 8944.26 533.48 5155.67 5959938.21 669652.63 1262.04 24.00 20.00 MWD 11545.00 98.46 95.02 8942.10 532.03 5175.50 5959937.19 669672.48 1270.18 24.00 20.02 4 11550.00 99.23 95.95 8941.33 531.55 5180.41 5959936.83 669677.41 1272.31 24.00 50.00 MWD 11570.00 102.28 99.72 8937.60 528.88 5199.87 5959934.58 669696.92 1281.48 24.00 50.14 5 11575.00 101.68 100.78 8936.56 528.01 5204.69 5959933.82 669701.75 1283.94 24.00 120.00 MWD 11595.00 99.23 104.98 8932.93 523.62 5223.85 5959929.85 669721.01 1294.62 24.00 120.22 6 11600.00 98.03 104.98 8932.18 522.34 5228.63 5959928.68 669725.81 1297.45 24.00 180.00 MWD 11625.00 92.03 104.98 8929.99 515.91 5252.67 5959922.77 669749.99 1311.73 24.00 180.00 MWD 11650.00 86.03 104.98 8930.41 509.45 5276.81 5959916.84 669774.26 1326.05 24.00 180.00 MWD 11662.00 83.15 104.98 8931.54 506.36 5288.35 5959914.00 669785.86 1332.90 24.00 180.00 7 11675.00 83.97 108.01 8933.00 502.69 5300.73 5959910.61 669798.32 1340.58 24.00 75.00 MWD 11700.00 85.59 113.82 8935.28 493.80 5323.98 5959902.23 669821.76 1356.88 24.00 74.66 MWD 11725.00 87.25 119.59 8936.84 482.60 5346.26 5959891.52 669844.27 1375.04 24.00 74.13 MWD 11750.00 88.93 125.36 8937.68 469.19 5367.32 5959878.57 669865.63 1394.84 24.00 73.77 MWD Obp BP-GDB Baker Hughes INTEQ Planning Report . . Survey 11772.00 90.43 130.42 8937.80 455.68 5384.68 5959865.45 669883.28 1413.47 24.00 73.58 8 11775.00 90.43 131.14 8937.78 453.72 5386.95 5959863.54 669885.59 1416.09 24.00 90.10 MWD 11800.00 90.41 137.14 8937.59 436.32 5404.88 5959846.54 669903.90 1438.57 24.00 90.11 MWD 11825.00 90.40 143.14 8937.42 417.14 5420.90 5959827.71 669920.33 1462.08 24.00 90.15 MWD 11850.00 90.37 149.14 8937.25 396.39 5434.82 5959807.27 669934.70 1486.34 24.00 90.19 MWD 11875.00 90.35 155.14 8937.09 374.30 5446.50 5959785.44 669946.86 1511.09 24.00 90.23 MWD 11900.00 90.32 161.14 8936.95 351.10 5455.80 5959762.46 669956.67 1536.06 24.00 90.27 MWD 11925.00 90.28 167.14 8936.81 327.07 5462.63 5959738.58 669964.02 1560.99 24.00 90.30 MWD 11950.00 90.25 173.14 8936.70 302.45 5466.91 5959714.06 669968.83 1585.59 24.00 90.34 MWD 11975.00 90.21 179.14 8936.60 277.52 5468.59 5959689.18 669971.06 1609.59 24.00 90.36 MWD 12000.00 90.17 185.14 8936.52 252.55 5467.66 5959664.19 669970.68 1632.74 24.00 90.39 MWD 12022.00 90.13 190.42 8936.46 230.76 5464.68 5959642.35 669968.18 1652.19 24.00 90.41 end 24 D 12025.00 90.13 190.78 8936.45 227.81 5464.13 5959639.39 669967.69 1654.78 12.00 90.00 MWD 12050.00 90.13 193.78 8936.40 203.38 5458.82 5959614.85 669962.91 1675.91 12.00 90.00 MWD 12075.00 90.13 196.78 8936.34 179.27 5452.23 5959590.60 669956.85 1696.32 12.00 90.01 MWD 12100.00 90.13 199.78 8936.29 155.53 5444.39 5959566.70 669949.53 1715.94 12.00 90.01 MWD 12125.00 90.12 202.78 8936.23 132.24 5435.32 5959543.22 669940.97 1734.72 12.00 90.02 MWD 12150.00 90.12 205.78 8936.18 109.45 5425.04 5959520.21 669931.20 1752.62 12.00 90.03 MWD 12175.00 90.12 208.78 8936.13 87.24 5413.58 5959497.75 669920.23 1769.58 12.00 90.03 MWD 12200.00 90.12 211.78 8936.07 65.65 5400.98 5959475.90 669908.10 1785.55 12.00 90.04 MWD 12225.00 90.12 214.78 8936.02 44.75 5387.26 5959454.71 669894.85 1800.50 12.00 90.05 MWD 12250.00 90.11 217.78 8935.97 24.60 5372.47 5959434.24 669880.50 1814.37 12.00 90.05 MWD 12272.00 90.11 220.42 8935.93 7.53 5358.59 5959416.87 669867.00 1825.67 12.00 90.06 10 12275.00 90.02 220.77 8935.93 5.25 5356.64 5959414.55 669865.10 1827.14 12.00 105.00 MWD 12300.00 89.24 223.67 8936.09 -13.26 5339.85 5959395.67 669848.72 1838.80 12.00 105.00 MWD 12325.00 88.47 226.56 8936.59 -30.90 5322.14 5959377.65 669831.40 1849.31 12.00 104.98 MWD 12350.00 87.70 229.47 8937.42 -47.61 5303.57 5959360.54 669813.20 1858.67 12.00 104.92 MWD 12375.00 86.93 232.37 8938.60 -63.35 5284.19 5959344.38 669794.17 1866.83 12.00 104.83 MWD 12400.00 86.18 235.28 8940.10 -78.08 5264.04 5959329.21 669774.36 1873.78 12.00 104.69 MWD 12425.00 85.43 238.19 8941.93 -91.76 5243.20 5959315.09 669753.82 1879.50 12.00 104.52 MWD 12450.00 84.69 241.11 8944.08 -104.34 5221.71 5959302.04 669732.61 1883.98 12.00 104.30 MWD 12475.00 83.97 244.04 8946.55 -115.80 5199.63 5959290.10 669710.79 1887.19 12.00 104.05 MWD 12488.00 83.60 245.56 8947.96 -121.30 5187.94 5959284.34 669699.22 1888.36 12.00 103.76 11 12500.00 83.86 246.99 8949.27 -126.10 5177.02 5959279.31 669688.41 1889.14 12.00 80.00 MWD 12525.00 84.39 249.96 8951.83 -135.22 5153.88 5959269.68 669665.48 1889.80 12.00 79.84 MWD 12550.00 84.94 252.92 8954.15 -143.15 5130.29 5959261.24 669642.07 1889.18 12.00 79.54 MWD 12575.00 85.51 255.87 8956.23 -149.85 5106.30 5959254.02 669618.23 1887.27 12.00 79.27 MWD 12600.00 86.09 258.83 8958.06 -155.31 5081.97 5959248.03 669594.03 1884.08 12.00 79.02 MWD 12625.00 86.67 261.77 8959.64 -159.51 5057.38 5959243.29 669569.54 1879.62 12.00 78.80 MWD 12650.00 87.27 264.72 8960.96 -162.45 5032.59 5959239.81 669544.83 1873.90 12.00 78.62 MWD 12675.00 87.87 267.66 8962.02 -164.11 5007.67 5959237.60 669519.95 1866.93 12.00 78.46 MWD 12700.00 88.48 270.60 8962.82 -164.49 4982.69 5959236.68 669494.98 1858.75 12.00 78.34 MWD 12725.00 89.10 273.54 8963.34 -163.58 4957.72 5959237.03 669470.00 1849.36 12.00 78.24 MWD 12738.00 89.42 275.06 8963.51 -162.61 4944.76 5959237.72 669457.02 1844.01 12.00 78.18 12 12750.00 89.43 276.50 8963.63 -161.40 4932.82 5959238.67 669445.06 1838.79 12.00 89.30 MWD 12775.00 89.47 279.50 8963.87 -157.92 4908.07 5959241.61 669420.24 1827.05 12.00 89.29 MWD 12800.00 89.51 282.50 8964.09 -153.15 4883.53 5959245.84 669395.60 1814.18 12.00 89.26 MWD 12825.00 89.55 285.50 8964.30 -147.10 4859.27 5959251.35 669371.22 1800.20 12.00 89.23 MWD 12850.00 89.59 288.50 8964.48 -139.79 4835.37 5959258.14 669347.17 1785.16 12.00 89.21 MWD 12875.00 89.64 291.50 8964.65 -131.24 4811.88 5959266.17 669323.50 1769.09 12.00 89.18 MWD 12883.00 89.65 292.46 8964.70 -128.25 4804.46 5959269.00 669316.02 1763.74 12.00 89.16 13 12900.00 89.69 290.42 8964.80 -122.04 4788.64 5959274.87 669300.06 1752.49 12.00 271.00 MWD 12925.00 89.74 287.42 8964.92 -113.93 4765.00 5959282.45 669276.25 1736.78 12.00 271.01 MWD Obp . . BP-GDB Baker Hughes INTEQ Planning Report 12950.00 89.80 284.42 8965.02 -107.07 4740.96 5959288.78 669252.07 1722.12 12.00 271.03 MWD 12975.00 89.85 281.42 8965.10 -101.48 4716.59 5959293.84 669227.59 1708.53 12.00 271.04 MWD 13000.00 89.91 278.42 8965.16 -97.17 4691.97 5959297.61 669202.88 1696.06 12.00 271.05 MWD 13025.00 89.96 275.42 8965.18 -94.16 4667.16 5959300.08 669178.01 1684.74 12.00 271.05 MWD 13050.00 90.02 272.42 8965.19 -92.45 4642.22 5959301.24 669153.04 1674.61 12.00 271.06 MWD 13075.00 90.07 269.43 8965.17 -92.05 4617.22 5959301.10 669128.04 1665.68 12.00 271.06 MWD 13100.00 90.13 266.43 8965.13 -92.95 4592.24 5959299.64 669103.09 1657.98 12.00 271.06 MWD 13108.00 90.14 265.47 8965.11 -93.52 4584.26 5959298.90 669095.12 1655.79 12.00 271.05 14 13125.00 90.11 267.51 8965.07 -94.56 4567.30 5959297.49 669078.19 1650.96 12.00 91.00 MWD 13150.00 90.06 270.50 8965.04 -94.99 4542.30 5959296.51 669053.21 1642.82 12.00 91.00 MWD 13175.00 90.00 273.50 8965.02 -94.12 4517.32 5959296.84 669028.22 1633.46 12.00 91.01 MWD 13200.00 89.95 276.50 8965.03 -91.94 4492.42 5959298.47 669003.27 1622.89 12.00 91.01 MWD 13225.00 89.90 279.50 8965.07 -88.46 4467.66 5959301.41 668978.45 1611.15 12.00 91.01 MWD 13250.00 89.84 282.50 8965.12 -83.69 4443.13 5959305.64 668953.82 1598.28 12.00 91.01 MWD 13275.00 89.79 285.50 8965.20 -77.64 4418.87 5959311.16 668929.44 1584.30 12.00 91.00 MWD 13300.00 89.74 288.50 8965.30 -70.33 4394.97 5959317.94 668905.38 1569.25 12.00 90.99 MWD 13325.00 89.69 291.50 8965.43 -61.78 4371.48 5959325.98 668881.71 1553.19 12.00 90.98 MWD 13350.00 89.64 294.50 8965.57 -52.01 4348.47 5959335.24 668858.50 1536.14 12.00 90.96 TD T Plan: Plan #6 (C-41/Plan#6 G-41A) II; Created By: BríJ Potnis Date: 10f712004 ^-"- .- )0 5200 5300 5400 5500 I West(-)/East(+) [100ft/in) :54 PM BP Amoco WELLPATH DETAILS Plarl#G C4iA 5002$2238561 Parent Wellpatln C... Til'!' O'n MD: 11493.i'7 Rig: NCl"dk::1 Rf¡f,Þatum: 48 I 41 8f1211993 0&.00 ,,- V.Section ~~~ ~~~ ::::~Ð Angle 160',00' 0.00 0.00 ...00 REFERENCE INFORMAT!ON Co-.ordí0ate (N/E) Reference: Well Centre: C-41, True North V~~:¿~~2~ ~:~:;~~; ~ro~t:4~ fo~~SN~Õ~6~)el Measured Depth Reference: 4~: 41 8 12/199300:00 72,60 Ca!cuJatíon Method: Minimum Curvature S£CT10N OIETAtI.$ .., .D ,= ." ND ..,,, ,~., m...s Wac.. Vhc TnfS'l>t .... 0."" f:t4!t.63 1,13 74.05 ,"'... ... 0.00 U:60.QII. M$ 2/),00 121'0.18 2.4.00 .50.1» tUfAS 24;00 1:00.00 1294;62 2.u1018(f.OO 1332.90 24J:1'!:¡ ·7$J)O 141.$.47 2.t.OO 90.10 1$5t..1$ 12:.00 90.co 1825.67 12.00 105.00 1888.3{1 12.00 &OJ)) 11144.Ø1 1%..00 89.30 1763:,'14 'tt.Q() 27i.oo 165'5.7$ fLOG iU..oo 1$3!>.14 ülNOTATIQRS "'. WID AnnoisUon C-41203062 20tH 71 -326 -300 250 200 150 100 50 -0 270 50 100 150 -M200 -250 --300 -326 WEU, DVrAIl.S ANTI~COLLIsrON SETTfNGS COMPANY DFTArLS Northi"!! Lougi:udc SllRVEY l'ROGRAI\4 WELLPATI! DI,TA1LS Phm#6C-41A 5002<J:n:¡S501 Dq>thfmDepthT,., Survey/PIau 17 13350.00 !'11I!1ncd- )'11131#6 VI Nordi<: 1 4í!:418i12i!W30Û,OO 10.00 13350.00 Pian: Plan #6 5<)59?\/? ()f, (,64510 2, JO~17'42 336N I <1P40'04368\V 41 o Trave11ìng Cylinder Azimuth (TFO+AZl) [deg] vs CeníTe to Centre Separation [100ft/in] f(\(}j !'aremWdlpath rieot1MD (:'41 114'1317 Rig Ref Da\1.Jm V,$c<;!i011 Origin Origin SlliL'1ing Angk ¡ N/-S '-F.I- Whom TVn 160,00' LEGEND C-i3A (C-13A), Major Risk C-13 (C-I3), Minor 1/10 C-31 (C-31), Major Risk C-31 (C-31A), Major Risk C-31 (C-3lB), Major Risk C-32 (C-32), Minor 1110 C-32 (C-32A), Minor 1/10 C-32 (C-32B), Minor 1110 C-39 (C-39), Major Risk C-41 (C-41), NOERRORS 15-23 (IS-23A), Major Risk PJan#6 C-41A Pian #6 Appmvcd,___ lNT SECTION DETAILS ; ¡ , 5 ~ , , " H 12 n " IS V~"" Targ~¡ 101712004 1.53 PM § ...... ~ ~ ~ r:/1 Q,) ~ ~ Q,) ü Q,) ~ ~ ü - Plan: Plan #6 (C-41/Plan#6 C-41A) 1000 200 o I I 13000 14500 14000 10500 11000 11500 Measured Depth [ft] C-13A (C-13A) C-31 (C-31A) C-32 (C-32A) C-41 (C-41) (C-13 ) C-31 (C-31B) C-32 (C-32B) 15-23 (15-23A) - C-31 (C-3 C-32 (C-32) C-39 (C-39) . . FRANK H. MURKOWSKI, GOVERNOR AI,ASIi.& OILA5D GAS CONSERVATION COMMISSION 333 W. 7fH AVENUE. SUITE 100 ANCHORAGE. ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Sean McLaughlin CT Drilling Engineer BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612 Re: Prudhoe Bay C-41A BP Exploration (Alaska) Inc. Permit No: 204-188 Surface Location: 1930' SNL, 884' WEL, SEC. 19, TIIN, RI4E, UM Bottomhole Location: 1983' SNL, 3461' EWL, SEC. 20, TUN, RI4E, UM Dear Mr. McLaughlin: Enclosed is the approved application for permit to redrill the above development well. This permit to redrill does not exempt you from obtaining additional permits or approvals required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Please provide at least twenty-four (24) hours notice for a representative of the Commission 0 witness any required test. Contact the Commission's petroleum field inspector at (907) 65 -3 7 (pager). BY ORDER OF THE COMMISSION DATED thisj2day of September, 2004 cc: Department ofFish & Game, Habitat Section wlo encl. Department of Environmental Conservation wlo encl. o Drill III Redrill 1 a. Type of work 0 Re-Entry 2. Operator Name: BP Exploration (Alaska) Inc. 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 4a. Location of Well (Governmental Section): Surface: 1930' SNL, 884' WEL, SEC. 19, T11N, R14E, UM Top of Productive Horizon: 1474' SNL, 3120' EWL, SEC. 20, T11N, R14E, UM Total Depth: 1983' SNL, 3461' EWL, SEC. 20, T11N, R14E, UM 4b. Location of Well (State Base Plane Coordinates): Surface: x- 66451 0 y- 5959291 Zone- ASP4 16. Deviated Wells: Kickoff Depth: 11200 feet Maximum Hole Angle: 95 WGIf '1/ 24 J ¿(It':' 4 ALAI. OIL AND ~~~~g~S~L:;~ON tMMISSIO~ECE IVED PERMIT TO DRILL SËP 2 3 '2DD4 20 MC 25.005 . . ì\ ?~~a> r.rms. Commission 11 b. Current Well Class 0 Exploratory ~~W1em. il1.1J.Mwltiple Zone o Stratigraphic Test 0 Service 0 Development GIllf!P~Mgle Zone 5. Bond: 181 Blanket 0 Single Well 11. Well Name and Number: Bond No. 2S100302630-277 PBU C-41A (" 6. Proposed Depth: 12. Field I Pool(s): MD 13200 TVD 896655 Prudhoe Bay Field I Prudhoe Bay 7. Property Designation: Pool ADL 028305 8. Land Use Permit: 13. Approximate Spud Date: October 20, 2004 ' 14. Distance to Nearest Property: 27,243' 9. Acres in Property: 2560 10. KB Elevation 15. Distance to Nearest Well Within Pool (Height above GL): 72.6' feet 600' 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Downhole: 3235 Surface: 2355 /" .t8...·...Ç~$ing/Pro9ram: Size Hole Casing 3" 2-3/8" Weight 4.6# Grade Coupling Length MD TVD MD TVD (including stage data) L-80 STL 2265' 10935' 8850' 13200' 8966' 53 sx Class 'G' . 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill AND Re-entry Operations) -Total Depth MD (ft): Total Depth TVD (ft): Plugs (measured): Depth MD (ft): Depth TVD 12453 8973 None 12432 8975 Structural Conductor 80' 20" 267 sx Arcticset (Approx.) 112' 112' Surface 3187' 13-3/8" 868 sx PF 'E', 420 sx Class 'G' 3221' 3217' Intermediate 10082' 9-5/8" 778 sx Class 'G' 10117' 8442' Production Liner 1445' 7" 307 sx Class 'G' 9952' - 11397' 8333' - 9020' Liner 1147' 4-1/2" Uncemented Slotted Liner 11306' - 12453' 9019' - 8973' 20. Attachments 181 Filing Fee, $100 181 BOP Sketch o Property Plat 0 Diverter Sketch perfOration Depth TVD (ft): 8985' - 8975' 181 Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis o Seabed Report 181 Drilling Fluid Program 18120 AAC 25.050 Requirements Date: Perforation Depth MD (ft): 11109' - 12431' 21. Verbal Approval: Commission Representative: 22. I hereby certify that the foregoing is true and correct to the best of my knowledge. Printed Name Sean McLaughlin Title CT Drilling Engineer ç,.- t/l, (h·~ Contact Sean McLaughlin, 564-4694 Phone 564-4694 See cover letter for other requirements DYes :gNo 'ØYes 0 No Permit To Drill I API Number: Number: ;2. 0 tj/ - /fj f 50- 029-22385-01-00 Conditions of Approval: Samples Required 0 Yes ~No rogen Sulfide Measures ~ Yes 0 No Other: ·Tes)/ . to ·~SOO p~') PQ~' C I D . / . Permit Approv~l/- _./-. ,. Date: 9'/d?/¿:JC¡' Mud Log Required I Directional Survey Required S I ¿, . 000 . Approved V' Form 10-401 APPROVED BY THE COMMISSION ORIGlf\Jl\L Date rL1£Lt~ . BP C-41A Sidetrack . CTD Sidetrack Summarv 1) Plugback CAI 2) Mill window off cement ramp 3) Drill sidetrack 4) Run liner, cement and perforate Mud Program: · Well kill: 8.4 - 8.9 pp~e · Milling/drilling: 8.5 ~pg used PIo Pro or biozan for milling, new PIo Pro for drilling. Disposal: · All drilling and completion fluids and all other Class II wastes will go to Grind & Inject. · All Class I wastes will go to Pad 3 for disposal. Casing Program: · 2 3/8" solid cemented liner completion 1~9 ' - 3200'. ,;' · The liner cement volume is planned to b -11 b s of 15.8 ppg class G. CasingfLiner Information . 13 3/8", L-80, 68#, Burst 5020 psi; collapse 2260 psi 95/8", NT-80 47#, Burst 6870, collapse 4750 psi 7", NT-80, 29#, Burst 8160, collapse 7020 psi Planned Liner 23/8" L-80 STL 4.6#, Burst 11200 psi; collapse 11780 psi (hole size 3.0") .,/ Well Control: · BOP diagram is attached., . · Pipe rams, blind rams and the CT pack off will be pressure tested to 400 psi and to ß~.D1>si. · The annular preventer will be tested to 400 psi and 2500 psi. '\:.::". Directional · See attached directional plan. Max. planned hole angle is 95 deg. · Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. · Distance to nearest property line: 27,243' ft · Distance to nearest well within pool: 600 ft Logging · MWD directional and Gamma Ray will be run over all of the openhole section. · MCNL will be run cased hole. Hazards · C pad i~t designated as an H2S pad. · There is one planned fault crossing. · Lost circulation risk is considered low. Reservoir Pressure · Res. press. is estimated to be 3235 psi at 8800'ss (7.1 ppg EMW). Max. surface pressure with gas (0.10 psi/ft) to surface is 2355 psi. / TREE = WELLHEAD = ACTUA TOR = ~KB.B..B7= BF. ElEV = KOP= m. ~ Max Angle = Datum MD = DatumlVD= 4-1/2" -5M CrN FMC BAKER 72.6' 34' 4522' 95 @ 12157' 10837' 8800' SS . C-41 ~AFETY NOTES: HORIZONTAL WELL· SL TD LNR . 2014' H 3-1/2" SSSV OTIS LANDING NIP, ID = 2.750" 13-3/8" CSG, 68#, L-80, ID = 12.415" H 3219' ¡-- Minimum ID = 2.750" @ 10876' 3-1/2" SWS NIPPLE L ST MD lVD 2 4205 4165 1 7035 6479 GAS LIFT MANDRELS DEV 1YÆ VLV LATCH 6 CAMeo DMY RK 51 CAMeo DMY RK PORT DA TE o 06/06/04 o 06/06/04 I TOP OF 7" LNR H 9949' I I ----j 10876' H 3-1/2" NIP, SWS. ID = 2.750" I 8 & ---i 10921' H 7" x 3-1/2" BAKER SABLI-3 PKR. ID = 3.938" ----j 10937' H 3-1/2" SWS NIP. ID = 2.725" I 9-518" CSG, 47#, NT-80, ID = 8.681" H 10117' ~ .. 13-1/2" TBG. 9.2#, L-80, .0087 bpf, ID = 2.992" H 10941' ~ 10941' H 3-1/2" TBG TAIL. WLEG, ID = 2.992" 1 I 10947' H ElMD TT LOGGED 08/08/97 I 0 I TOP OF 4-1/2" SL TO LNR H 11309' I ~ r-1 11309' 11 7" x 4-1/2" BAKER FB-2 PKR W/SEAL BORE EXTENSION .......----j 11316' H PORTED PUP JOINT I 7" LNR. 29#. NT-80, .0371 bpf.ID=6.184" H 11397' I - ~ ÆRFORA TION SUMMARY REF LOG: SPERRY SUN MWD/GR ON 08/13/93 ANGLE AT TOP PERF: 75 @ 11109' Note: Refer to R-oduction DB for historical perf data SIZE SPF INTERV AL Opn/Sqz DA TE 2-1/2" 4 11109 - 11129 0 04/04/95 2-1/2" 4 11168 - 11188 0 04/04/95 4-1/2" SLTO 11405-12431 SLTD 09/04/93 I PBTD H 12432' ~ 4-1/2" SLTD LNR. 13.5#. L-80, ID= 3.845" H 12453' DATE 09/07/93 09/17/01 05/03/02 07/05/03 09/15/03 06/06/04 REV BY COMMENTS ORIGINAL COM PLETION RN/TP CORRECTIONS CMO/KK MAX ANGLE CORRECTION CMOITLP KB ElEVATION CORRECTION CMOITLP ÆRF ANGLE CORRECTION JLJ/KAK GLV C/O DA TE REV BY COMMENTS 06/22/04 DFRlKAK CORRECTIONS PRUDHOE BA Y UNIT WElL: G-41 ÆRMIT No: 1930990 API No: 50-029-22385-00 SEC 19. T11 N. R14E, 1930' FNL & 884' FEl BP Exploration (Alaska) TREE = WELLHEAD = ACTUATOR = KB. ELEV = 4-1/2" -5M CMI FMC BAKER 72.6' 34' KOP= Max Angle = Datum MD = Datum TVD = 95 @ 12157' 10837' 8800' SS 13-3/8" CSG, 68#, L-80, 10 = 12.415" l-i 3219' --J Minimum IC == 2.750" @ 10876' 3-1/2" SWS NIPPLE I TOP OF 7" LNR H 9949' . - l - I NOTES: 2014' J-i 3-1/2" SSSV OTIS LANDINGNIP,IO GAS LIFT MANDRELS TYPE VL V CAMCOOMY RK CAMCODMY RK PORT o 06/06/04 o 06/06/04 ST MD TVO 2 4205 4165 6 1 7035 6479 51 ... ~ 10876' I-i g ---l 10921' H '-----1 10931' H '--1 10941' H I 10941' I-i I 9-5/8" CSG, 47#, NT-80, 10 = 8.681" 1-i10117' ¡...-.. I~ 13-1/2" TBG, 9.2#, L-80, .0087 bpf, ID = 2.992" H 10941' I l-i PERFORA TION SUMMARY REF LOG: SPERRY SUN MWD/GR ON 08/13/93 ANGLE AT TOP PERF: 75 @ 11109' Note: Refer to Ffoduction DB for historicaiperfd¡¡¡ta SIZE SPF INTERVAL Opn/Sqz DA TE 2-1/2" 4 11109 - 11129 2-1/2" 4 11168 - 11188 4-1/2" SLTD 11405 - 12431 I TOP OF 4-1/2" SL TO LNR 1-; 11309' I 7" LNR, 29#, NT-80, .0371 bpf, 10 = 6.184" 11397' I PBTD 12432' 4-1/2" SL TO LNR, 13.5#, L-80. 10 = 3.845" H 12453' DATE 09/01193 09/17/01 05/03/02 07/05/03 09/15/03 06/06/04 REV BY COMMENTS ORIGINAL COM PLErION RNlTP CORRECTIONS CMO/KK MAX ANGLE CORRECTION CMOITLP KB ELEVATION CORRECTION CMOfTLP PERF ANGLE CORRECTION JLJ/KAK GL V C/O 06122/04 REV BY COMMENTS CORRECTIONS 3-1/2" SWS NIP, ID = 1 7" X 3-112" BAKERSABU..3 PKR, iD= 3.938" I 3-1/2"SWSNIP.ID I ELMD TT LOGGED 08/08/97 I 11309' 1- 7" X 4-1/2" BAKER PKR W/SEAL BORE EXTENSION 11316' PORTED PUP JOINT I PRUDHOE SAY UNrr WELL: C-41 PERMrr No: 1930990 API No: 50-029-22385-00 SEe 19. T11N. R14E, 1930'FNL & SP Exploration (Alaska) Plan: Plan #5 (C-41/Plan#5 C-41A) Date: 9/20/2004 Created By: Bnj Polni (\;n[ar;[ Inf"rm8Üor; Baker Huqhes Azimuths to True North Magnetic North: 25.06' Magnetic Field Strength: 57616nT Dip Angle: 80.84' Date: 9/20/2004 Model: bggm2004 T M A / ~:~#~Cë"j\A Plan #5 BP Amoco WELLPATH DETAILS Plan#! C-41A 100212238501 "'NlntWellpath: 0-4' Tie all MDI 11U1.s. RiB; Nordic 1 R....D.tum; 4. 141111211"3 00;00 V.seo:tioll O+~~ ~£'-= ::::I~D AnBle 1.0.00· 0.00 0.00 31..0 REFERENCE INFORMATION Co-~~~r~M!~lg~ ~:~:~:~~~ ~~:e~n~:~~~~ t~:e~orth Section (VS) Reference: Slot· 41 (O.OON.O.OOE) Measured Depth Reference: 48: 41 8/12/1993 00:00 72.60 Calculation Method: Minimum Curvature . Targ.' ,~"' _. '"- '"- PoIYl/On ~~ OLee TF.ce VSfl: 0.00 0.00 1147.04 ..58 19.11 1149.5tI 40.0020.001154.03 !::!! 1~:: U!t:~ ~::gg -;;:gg ~~;:::: 1..00108.001408.73 it: 1~:: i:~: 12.00 89.30 1781.61 ~~:gg ~tgg ~:::= a"q'J 371.00 1114,11 TARGETOETAllS T\I[I +NI-S +EJ_W 0,00 .J89.015331.91 g:gg .:¡~:~ :~~:~ 0,00 39,&4 4492.03 lËi~ -~i:ü ~U:Ë 4823.45 4831.8. 4845.52 4870.48 4895.42 4983.15 5080.93 5192.48 5277.17 5358.81 5244.34 5010.08 47t1O.54 4571.00 4360.88 n1f7f 534.93 535.28 I TV. 8831.77 89;)3.44 8935.51 Ø937.t3 8937.20 8941.90 8947.75 8942.02 8937.58 8935.82 !ª~ 1M A¡I 111191.5978.21 87.83 ~ ~~:1::: ::~: :~~~ ! 1~~iE 5~~i :~i! 9 11880.00 80.97 129.84 1.12094.00 90.43 206.33 11 12260.00 83.11 237.04 !H~~:::: !H! EH: ~: ~~;:::: !!.~: !9~~: ANNOTATIONS Name C-41APoIygon gj1H:~¡¡~ ~3¡HH A.llatatlall TIP KOP end 40 DLS I ....111 18 DI 5 · · · 7 · · 1. .nd 18 DLS ''''111112 '2 U 15 TO MO 1131.77 111.1.SI ..33.44 11200.00 IUS.5111214.00 1.37.13 11231.00 '.37.2011214.00 1841.10 11314.00 '.47.71 11454.00 .'42.02 115...00 .U7.5.11....00 .'35.'2 12014.00 .141..1 122.'.00 ".2.1' 1251'.00 ::::-~~ u:::-: '''5.53 131.4.00 1165.61 13200.00 . 3:42 PM 9/20/200'1 Vertical Section at 160.00· [20ft/in] 01.$ ... .58 = Os ~ ~8 ~ ~ ~8 Q ¡8 U ~8 ~ >~ ~ 28 ~ . BP-GDB Baker Hughes INTEQ Planning Report . Field: Prudhoe Bay North Slope UNITED STATES Map System:US State Plane Coordinate System 1927 Geo Datum: NAD27 (Clarke 1866) Sys Datum: Mean Sea Level Map Zone: Coordinate System: Geomagnetic Model: Alaska, Zone 4 Well Centre bggm2004 Site: PB C Pad TR-11-14 UNITED STATES: North Slope Site Position: Northing: From: Map Easting: Position Uncertainty: 0.00 ft Ground Level: 0.00 ft 5957218.72 ft 662550.03 ft Latitude: 70 17 Longitude: 148 41 North Reference: Grid Convergence: 22.367 N 2.797 W True 1.24 deg Well: C-41 Slot Name: 41 C-41 Well Position: +N/-S 2030.62 ft Northing: 5959292.06 ft Latitude: 70 17 42.336 N +E/-W 2004.71 ft Easting : 664510.23 ft Longitude: 148 40 4.368 W Position Uncertainty: 0.00 ft Wellpath: Plan#5 C-41A 500292238501 Current Datum: 48 : 41 8/12/1993 00:00 Magnetic Data: 9/20/2004 Field Strength: 57616 nT Vertical Section: Depth From (TVD) ft 39.60 +N/-S ft 0.00 Drilled From: Tie-on Depth: Above System Datum: Declination: Mag Dip Angle: +E/-W ft 0.00 C-41 11191.59 ft Mean Sea Level 25.06 deg 80.84 deg Direction deg 160.00 Height 72.60 ft Targets C-41A Polygon4.1 0.00 -389.01 5337.91 5959020.00 669855.00 70 17 38.491 N 148 37 28.798 W -Polygon 1 0.00 -389.01 5337.91 5959020.00 669855.00 70 17 38.491 N 148 37 28.798 W -Polygon 2 0.00 -218.42 4856.49 5959180.00 669370.00 70 17 40.172 N 148 37 42.825 W -Polygon 3 0.00 -101.29 4303.89 5959285.00 668815.00 70 1741.327N 148 37 58.929 W -Polygon 4 0.00 -105.93 4058.71 5959275.00 668570.00 70 17 41.283 N 148 38 6.075 W -Polygon 5 0.00 69.04 4062.54 5959450.00 668570.00 70 17 43.004 N 148 38 5.960 W -Polygon 6 0.00 -20.14 4480.72 5959370.00 668990.00 70 1742.125 N 148 37 53.774 W -Polygon 7 0.00 -62.50 5044.96 5959340.00 669555.00 70 1741.704 N 148 37 37.329 W -Polygon 8 0.00 -200.68 5417.05 5959210.00 669930.00 70 17 40.343 N 148 37 26.487 W C-41A Fault 1 0.00 150.86 4894.59 5959550.00 669400.00 70 17 43.804 N 148 3741.708 W -Polygon 1 0.00 150.86 4894.59 5959550.00 669400.00 70 17 43.804 N 148 37 41.708 W -Polygon 2 0.00 -141.17 5668.43 5959275.00 670180.00 70 17 40.926 N 148 37 19.159 W C-41A Fault 3 0.00 -186.27 4302.02 5959200.00 668815.00 70 17 40.492 N 148 37 58.984 W -Polygon 1 0.00 -186.27 4302.02 5959200.00 668815.00 70 17 40.492 N 148 37 58.984 W -Polygon 2 0.00 -521.69 5229.97 5958885.00 669750.00 70 1737.187 N 148 37 31.946 W C-41A Fault 2 0.00 39.64 4492.03 5959430.00 669000.00 70 1742.712 N 148 37 53.443 W -Polygon 1 0.00 39.64 4492.03 5959430.00 669000.00 70 1742.712 N 148 37 53.443 W -Polygon 2 0.00 338.27 4558.58 5959730.00 669060.00 70 17 45.649 N 148 37 51.498 W C-41A T4.2 8937.00 -16.42 5316.06 5959392.00 669825.00 70 17 42.156 N 148 37 29.427 W C-41A T4.1 8948.00 485.04 5073.96 5959888.00 669572.00 70 17 47.089 N 148 37 36.473 W C-41A T4.3 8963.00 -178.52 5018.40 5959223.43 669530.98 70 17 40.563 N 148 37 38.105 W C-41A T4.4 8966.00 -29.24 4114.84 5959352.89 668624.44 70 1742.037 N 148 38 4.437 W . BP-GDB Baker Hughes INTEQ Planning Report . Annotation 11191.59 8931.77 TIP 11200.00 8933.44 KOP 11214.00 8935.51 end 40 DLS / begin 18 DLS 11239.00 8937.13 4 11264.00 8937.20 5 11354.00 8941.90 6 11454.00 8947.75 7 11569.00 8942.02 8 11669.00 8937.58 9 12094.00 8935.82 10 12269.00 8945.91 end 18 DLS / begin 12 DLS 12519.00 8962.88 12 12744.00 8964.97 13 12969.00 8965.30 14 13184.00 8965.53 15 13200.00 8965.61 TO Plan: Plan #5 Date Composed: 9/20/2004 Similar to Lamar's Plan #4 Version: 3 Principal: Yes Tied-to: From: Definitive Path Plan Section Information 11191.59 78.21 87.63 8931.77 534.93 4823.45 0.00 0.00 0.00 0.00 11200.00 78.89 87.87 8933.44 535.26 4831.68 8.56 8.09 2.85 19.11 11214.00 84.16 89.79 8935.51 535.54 4845.52 40.00 37.63 13.73 20.00 11239.00 88.39 91.33 8937.13 535.29 4870.46 18.00 16.92 6.15 20.00 11264.00 91.28 94.78 8937.20 533.96 4895.42 18.00 11.57 13.79 50.00 11354.00 82.77 108.59 8941.90 515.86 4983.15 18.00 -9.46 15.35 121.90 11454.00 90.56 92.33 8947.75 497.87 5080.93 18.00 7.80 -16.26 -65.00 11569.00 95.09 112.56 8942.02 473.30 5192.48 18.00 3.94 17.59 77.00 11669.00 89.97 129.84 8937.58 421.74 5277.57 18.00 -5.12 17.28 106.00 12094.00 90.43 206.33 8935.82 36.11 5358.95 18.00 0.11 18.00 89.55 12269.00 83.11 237.04 8945.91 -92.83 5244.34 18.00 -4.18 17.55 104.00 12519.00 89.28 266.48 8962.88 -169.77 5010.08 12.00 2.47 11.78 79.40 12744.00 89.67 293.48 8964.97 -131.13 4790.54 12.00 0.18 12.00 89.30 12969.00 90.16 266.49 8965.30 -92.48 4571.00 12.00 0.22 -12.00 271.00 13184.00 89.71 292.28 8965.53 -57.73 4360.66 12.00 -0.21 12.00 91.00 13200.00 89.75 290.36 8965.61 -51.91 4345.76 12.00 0.21 -12.00 271.00 Survey 11191.59 78.21 87.63 8931.77 534.93 4823.45 5959932.40 669320.48 1147.04 0.00 0.00 TIP 11200.00 78.89 87.87 8933.44 535.26 4831.68 5959932.90 669328.71 1149.56 8.56 19.11 KOP 11214.00 84.16 89.79 8935.51 535.54 4845.52 5959933.48 669342.54 1154.03 40.00 20.00 end 40 D 11225.00 86.02 90.47 8936.45 535.51 4856.48 5959933.70 669353.49 1157.80 18.00 20.00 MWD 11239.00 88.39 91.33 8937.13 535.29 4870.46 5959933.78 669367.47 1162.79 18.00 19.94 4 11250.00 89.66 92.85 8937.32 534.89 4881 .45 5959933.62 669378.47 1166.92 18.00 50.00 MWD 11264.00 91.28 94.78 8937.20 533.96 4895.42 5959933.00 669392.45 1172.57 18.00 49.97 5 11275.00 90.23 96.46 8937.06 532.88 4906.36 5959932.16 669403.42 1177.33 18.00 121.90 MWD 11300.00 87.86 100.28 8937.48 529.25 4931.09 5959929.07 669428.21 1189.20 18.00 121.92 MWD 11325.00 85.49 104.11 8938.93 523.98 4955.48 5959924.33 669452.71 1202.50 18.00 121.86 MWD 11350.00 83.14 107.97 8941.40 517.11 4979.38 5959917.99 669476.76 1217.13 18.00 121.64 MWD 11354.00 82.77 108.59 8941.90 515.86 4983.15 5959916.82 669480.55 1219.59 18.00 121.25 6 11375.00 84.38 105.15 8944.25 509.81 5003.12 5959911.21 669500.64 1232.10 18.00 295.00 MWD 11400.00 86.32 101.08 8946.28 504.16 5027.38 5959906.09 669525.02 1245.71 18.00 295.39 MWD 11425.00 88.28 97.02 8947.46 500.23 5052.03 5959902.71 669549.76 1257.83 18.00 295.72 MWD . BP-GDB Baker Hughes INTEQ Planning Report . ,....,-_._...~~-_. -. INTHQ Survey 11450.00 90.25 92.97 8947.78 498.06 5076.93 5959901.08 669574.69 1268.39 18.00 295.91 MWD 11454.00 90.56 92.33 8947.75 497.87 5080.93 5959900.98 669578.69 1269.93 18.00 295.96 7 11475.00 91.41 96.01 8947.39 496.34 5101.86 5959899.91 669599.65 1278.53 18.00 77.00 MWD 11500.00 92.41 1 00.40 8946.55 492.78 5126.59 5959896.89 669624.45 1290.33 18.00 77.06 MWD 11525.00 93.40 104.80 8945.29 487.34 5150.95 5959891.98 669648.92 1303.78 18.00 77.21 MWD 11550.00 94.37 109.20 8943.59 480.05 5174.79 5959885.22 669672.92 1318.79 18.00 77.43 MWD 11569.00 95.09 112.56 8942.02 473.30 5192.48 5959878.86 669690.75 1331.18 18.00 77.73 8 11575.00 94.79 113.60 8941.51 470.96 5197.98 5959876.64 669696.30 1335.26 18.00 106.00 MWD 11600.00 93.53 117.93 8939.69 460.12 5220.43 5959866.30 669718.98 1353.12 18.00 106.09 MWD 11625.00 92.25 122.25 8938.43 447.61 5242.03 5959854.26 669740.85 1372.27 18.00 106.40 MWD 11650.00 90.96 126.56 8937.73 433.49 5262.64 5959840.60 669761.76 1392.58 18.00 106.62 MWD 11669.00 89.97 129.84 8937.58 421.74 5277.57 5959829.18 669776.94 1408.73 18.00 106.74 9 11675.00 89.98 130.92 8937.58 417.86 5282.14 5959825.39 669781.60 1413.94 18.00 89.55 MWD 11700.00 90.02 135.42 8937.58 400.76 5300.37 5959808.70 669800.20 1436.24 18.00 89.55 MWD 11725.00 90.05 139.92 8937.57 382.28 5317.21 5959790.60 669817.43 1459.36 18.00 89.55 MWD 11750.00 90.09 144.41 8937.54 362.54 5332.54 5959771.20 669833.19 1483.16 18.00 89.55 MWD 11775.00 90.12 148.91 8937.49 341.66 5346.27 5959750.63 669847.37 1507.47 18.00 89.56 MWD 11800.00 90.15 153.41 8937.43 319.77 5358.33 5959729.00 669859.90 1532.17 18.00 89.57 MWD 11825.00 90.19 157.91 8937.36 297.00 5368.63 5959706.46 669870.70 1557.09 18.00 89.58 MWD 11850.00 90.22 162.41 8937.27 273.48 5377.11 5959683.14 669879.69 1582.09 18.00 89.59 MWD 11875.00 90.25 166.91 8937.17 249.38 5383.72 5959659.19 669886.83 1607.00 18.00 89.61 MWD 11900.00 90.28 171.41 8937.05 224.83 5388.41 5959634.76 669892.06 1631.67 18.00 89.62 MWD 11925.00 90.30 175.91 8936.93 199.99 5391.17 5959609.98 669895.36 1655.96 18.00 89.64 MWD 11950.00 90.33 180.41 8936.79 175.01 5391.97 5959585.03 669896.71 1679.71 18.00 89.67 MWD 11975.00 90.35 184.91 8936.64 150.05 5390.81 5959560.04 669896.09 1702.77 18.00 89.69 MWD 12000.00 90.37 189.41 8936.48 125.25 5387.69 5959535.19 669893.52 1725.00 18.00 89.72 MWD 12025.00 90.39 193.91 8936.32 100.77 5382.64 5959510.61 669889.00 1746.28 18.00 89.75 MWD 12050.00 90.41 198.41 8936.14 76.77 5375.68 5959486.46 669882.57 1766.45 18.00 89.78 MWD 12075.00 90.42 202.91 8935.96 53.38 5366.86 5959462.89 669874.27 1785.41 18.00 89.81 MWD 12094.00 90.43 206.33 8935.82 36.11 5358.95 5959445.45 669866.73 1798.93 18.00 89.84 10 12100.00 90.17 207.38 8935.79 30.76 5356.24 5959440.04 669864.14 1803.04 18.00 104.00 MWD 12125.00 89.08 211.75 8935.95 9.02 5343.91 5959418.04 669852.29 1819.25 18.00 104.01 MWD 12150.00 88.00 216.12 8936.59 -11.71 5329.96 5959397.01 669838.80 1833.96 18.00 103.98 MWD 12175.00 86.93 220.49 8937.69 -31.30 5314.48 5959377.08 669823.76 1847.07 18.00 103.87 MWD 12200.00 85.87 224.88 8939.27 -49.64 5297.57 5959358.38 669807.25 1858.52 18.00 103.67 MWD 12225.00 84.84 229.27 8941 .29 -66.61 5279.33 5959341.02 669789.39 1868.23 18.00 103.40 MWD 12250.00 83.84 233.68 8943.75 -82.10 5259.87 5959325.11 669770.27 1876.13 18.00 103.04 MWD 12269.00 83.11 237.04 8945.91 -92.83 5244.34 5959314.04 669754.99 1880.90 18.00 102.61 end 18 D 12275.00 83.24 237.76 8946.63 -96.03 5239.32 5959310.72 669750.04 1882.20 12.00 79.40 MWD 12300.00 83.81 240.72 8949.45 -108.74 5217.98 5959297.56 669728.98 1886.84 12.00 79.32 MWD 12325.00 84.39 243.68 8952.02 -120.33 5195.99 5959285.48 669707.25 1890.21 12.00 78.98 MWD 12350.00 84.98 246.63 8954.33 -130.79 5173.40 5959274.54 669684.89 1892.31 12.00 78.68 MWD 12375.00 85.59 249.58 8956.39 -140.08 5150.28 5959264.74 669661.99 1893.13 12.00 78.40 MWD 12400.00 86.21 252.52 8958.17 -148.18 5126.70 5959256.13 669638.59 1892.68 12.00 78.16 MWD 12425.00 86.85 255.46 8959.69 -155.06 5102.72 5959248.73 669614.77 1890.94 12.00 77.95 MWD 12450.00 87.48 258.40 8960.93 -160.70 5078.40 5959242.55 669590.58 1887.93 12.00 77.77 MWD 12475.00 88.13 261.33 8961.88 -165.10 5053.81 5959237.62 669566.09 1883.65 12.00 77.63 MWD 12500.00 88.78 264.26 8962.56 -168.24 5029.02 5959233.94 669541.38 1878.12 12.00 77.52 MWD 12519.00 89.28 266.48 8962.88 -169.77 5010.08 5959232.00 669522.48 1873.08 12.00 77 .44 12 12525.00 89.29 267.20 8962.95 -170.10 5004.09 5959231.53 669516.50 1871.34 12.00 89.30 MWD 12550.00 89.32 270.20 8963.26 -170.67 4979.10 5959230.42 669491.53 1863.33 12.00 89.29 MWD 12575.00 89.36 273.20 8963.54 -169.92 4954.12 5959230.62 669466.54 1854.08 12.00 89.25 MWD 12600.00 89.41 276.20 8963.81 -167.87 4929.21 5959232.12 669441.59 1843.64 12.00 89.22 MWD . BP-GDB Baker Hughes INTEQ Planning Report . Survey 12625.00 89.45 279.20 8964.06 -164.52 4904.44 5959234.93 669416.76 1832.02 12.00 89.19 MWD 12650.00 89.49 282.20 8964.29 -159.88 4879.88 5959239.03 669392.10 1819.26 12.00 89.16 MWD 12675.00 89.54 285.20 8964.50 -153.96 4855.59 5959244.42 669367.69 1805.39 12.00 89.13 MWD 12700.00 89.59 288.20 8964.69 -146.78 4831.65 5959251.08 669343.60 1790.45 12.00 89.11 MWD 12725.00 89.64 291 .20 8964.86 -138.35 4808.12 5959258.98 669319.89 1774.48 12.00 89.08 MWD 12744.00 89.67 293.48 8964.97 -131.13 4790.54 5959265.82 669302.17 1761.68 12.00 89.06 13 12750.00 89.69 292.76 8965.01 -128.77 4785.03 5959268.05 669296.60 1757.58 12.00 271.00 MWD 12775.00 89.74 289.76 8965.13 -119.71 4761.73 5959276.61 669273.11 1741.10 12.00 271.00 MWD 12800.00 89.79 286.76 8965.23 -111.88 4737.99 5959283.92 669249.21 1725.62 12.00 271.02 MWD 12825.00 89.85 283.76 8965.31 -105.30 4713.88 5959289.97 669224.96 1711.19 12.00 271.03 MWD 12850.00 89.90 280.76 8965.37 -99.99 4689.45 5959294.74 669200.42 1697.84 12.00 271.04 MWD 12875.00 89.96 277.76 8965.40 -95.96 4664.78 5959298.22 669175.67 1685.62 12.00 271.05 MWD 12900.00 90.01 274.76 8965.40 -93.23 4639.93 5959300.40 669150.77 1674.56 12.00 271.05 MWD 12925.00 90.07 271.76 8965.39 -91.81 4614.98 5959301.28 669125.79 1664.69 12.00 271.05 MWD 12950.00 90.12 268.76 8965.34 -91.70 4589.98 5959300.85 669100.80 1656.03 12.00 271.05 MWD 12969.00 90.16 266.49 8965.30 -92.48 4571.00 5959299.65 669081.84 1650.28 12.00 271.04 14 12975.00 90.15 267.21 8965.28 -92.81 4565.01 5959299.19 669075.86 1648.54 12.00 91.00 MWD 13000.00 90.10 270.20 8965.23 -93.38 4540.01 5959298.07 669050.89 1640.52 12.00 91.00 MWD 13025.00 90.05 273.20 8965.19 -92.63 4515.03 5959298.27 669025.89 1631.28 12.00 91.01 MWD 13050.00 89.99 276.20 8965.19 -90.58 4490.12 5959299.78 669000.94 1620.83 12.00 91.01 MWD 13075.00 89.94 279.20 8965.20 -87.23 4465.34 5959302.58 668976.10 1609.21 12.00 91.01 MWD 13100.00 89.89 282.20 8965.24 -82.59 4440.78 5959306.69 668951.45 1596.45 12.00 91.01 MWD 13125.00 89.83 285.20 8965.30 -76.67 4416.50 5959312.07 668927.04 1582.58 12.00 91.01 MWD 13150.00 89.78 288.20 8965.38 -69.49 4392.55 5959318.73 668902.95 1567.64 12.00 91.00 MWD 13175.00 89.73 291.20 8965.49 -61.06 4369.02 5959326.64 668879.24 1551.67 12.00 90.99 MWD 13184.00 / 89.71 292.28 8965.53 -57.73 4360.66 5959329.79 668870.81 1545.68 12.00 90.98 15 13200.00 89.75 290.36 8965.61 -51.91 4345.76 5959335.28 668855.78 1535.11 12.00 271.00 TD Name +N/-S +EI.W Northing WELL DETAILS ANTI-COLLISION SETTINGS COMPANY DETAILS Easting Latitude Longitude Slot BPAmoco l)cpthFm DeplhTo Survcy/Plan 1119].5913400,00 Pianned:Plan#5V2 Nordic 1 48:418/12.1199300:00 72.601\ Interpolation MethodMD + Stati_rval: 10.00 Depth Range From: 11200.00 To: 13400.00 Maximum Range: 1536.04 Reference: Plan: Plan #5 Calculation Method: Minimum Curvature Error System: ISCWSA Scan Method: TravÇylindcrNorth En:orSurface: El1îpllcal+Casing Waming Method: Rules ßased C-412030.62 2004.71 5959292.06 664510.23 70"17'42.336N 148"40'04.368W 41 -326 ·---300 -250 0000200 -150 -100 -50 -0 270 -50 -100 ··-··-150 ---200 -250 .00-300 -326 o Travelling Cylinder Azimuth (TFO+AZI) [deg] vs Centre to Centre Separation [100ft/in] SURVEY PROGRAM WELLPATJ1 DETAILS Tllol Plan#5C-4IA 500292238501 <;'41 11191.59 MWD ParenlWellpath: Tie 011 Ml): Rig: Ref. Ðalum: V.S:~~ ~~7_i~ ?~~,; ~~~~'VD ~= I~~ =8250 -8500 -8750 -0000 -9250 <~9500 -9750 1~ -10500 -,~,..~ 10750 ~- \1000 -\1250 11500 -11750 -12000 12250 -12500 12750 13fHIO -13250 _m;K¿ -140fH) 14250 -14500 -1475(1 -150fH) 160.00" 0.00 0.00 39.60 LEGEND C-13A (C-13A), Minor 1/10 C-13 (C-13), Minor 1/10 C-31 (C-31), Major Risk C-31 (C-31 A), Major Risk C-31 (C-318), Major Risk C-32 (C-32), Minor 1/10 C-32 (C-32A), Minor 1/1 0 C-32 (C-32B), Minor 1/1 0 C-39 (C-39), Major Risk C-41 (C-41), NOERRORS IS-23 (lS-23A), Major Risk Plan#S C-4IA Plan #S . PI.":~.n#;(C-41/Pl>nN.sC·41^) Ü",,'edlJy:BnjPolnj, 0., Rev'eW<"d:____ Approv...t:____ . BAKER HUGHES INT EQ Alj ['J.,<.~ rargd :g~¿:~ 78.21 9004.37 534.93 4823.45 0.00 (1.00 1147.04 78.89 9006.04 535.26 4831.68 B.5(; 19.11 1)49.56 11214.00 84.16 9008.1) 535.54 :~~~:¡¿ ~~:~ ~g:~ 1154.0.; 11239.00 88.39 9009,73 5.15.29 1162.79 11264.00 91.28 9009,80 533.% 4895.42 18.00 50.00 1\72.57 11354.00 ~~:~ 90)00 m::~ 4983.15 )8.00 ~~:~ 1219.59 11454.00 9020.35 5(180.93 18.0(1 1269.93 11569.00 95.09 9014.62 m:~2 5192048 18.00 77.00 13.1\.18 , 11669.00 89,97 9010.18 5277.57 18.00 106.00 1408.73 '0 12094.00 9Q.43 9008.42 36.11 53.58.95 :~:~ 89.55 ¡~~~:~ II 12269.00 83.11 901851 -92.83 5244.34 104.00 12 12519.00 89.28 9035.48 -169.77 5010.08 12.00 79.40 ¡m:~~ II 12744.00 89.67 903757 -131.13 479054 12.00 89.30 14 12%9.00 90.16 0037.90 -92.48 4571.00 12.00 271.00 1650.28 II 13184.00 89.71 9038.13 ·57.73 4360.66 12.00 91-00 154568 " 1340(1.00 \1(1.18 9038.34 -23.03 '9'120120'0"4 '''3:39 PM Plan: Plan #5 (C-41/Plan#5 C-41A) 2500 ..-, 200 . ¢:: - L........I ¡::::: 0 ,,... -+-> ~ ;... ~ P- () r/) () ~ ¡::::: () u 0 1000 -+-> () ~ ¡::::: () u e o I I I I .) I I I I I I I I I 12000 12500 Measured Depth [ft] I I I I I 14000 I I I I 14500 I I I 10500 I I I I I 11000 I I I I I 13000 I I 13500 C-13A (C-13A) C-31 (C-31A) C-32 (C-32A) C-41 (C-41) C-13 (C-13) C-31 (C-31B) C-32 (C-32B) 15-23 (15-23A) C-31 (C-31) C-32 (C-32) C-39 (C-39) . BP-GDB Anticollision Report . NO GLOBAL SCAN: Using user defined selection & scan criteria Interpolation Method: MD + Stations Interval: 10.00 ft Depth Range: 11200.00 to 13400.00 ft Maximum Radius: 1536.04 ft Reference: Error Model: Scan Method: Error Surface: Plan: Plan #5 & NOT PLANNED PROGRA \i1 ISCWSA Ellipse Trav Cylinder North Ellipse + Casing Casing Points 3219.00 10117.00 11200.00 13400.00 3215.24 8442.45 9006.04 9038.34 13.375 9.625 7.000 2.875 17.500 12.250 8.500 3.750 133/8" 9 5/8" 7" 2 7/8" Plan: Plan #5 Similar to Lamar's Plan #4 Principal: Yes Date Composed: Version: Tied-to: 9/20/2004 2 From: Definitive Path Summary PB C Pad C-13A C-13A V9 Out of range PB C Pad C-13 C-13 V1 11525.00 11550.00 816.22 0.00 816.21 Pass: Minor 1/10 PB C Pad C-31 C-31 V3 12175.00 11030.00 1263.00 306.82 956.18 Pass: Major Risk PB C Pad C-31 C-31A V1 12250.00 11030.00 1281.42 344.94 936.49 Pass: Major Risk PB C Pad C-31 C-31 B V2 12250.00 11030.00 1281.42 344.94 936.49 Pass: Major Risk PB C Pad C-32 C-32 V1 12678.35 10320.00 537.06 0.00 537.06 Pass: Minor 1/10 PB C Pad C-32 C-32A V2 12504.01 10630.00 419.48 0.00 419.48 Pass: Minor 1/10 PB C Pad C-32 C-32BV3 12678.84 10340.00 479.11 0.00 479.11 Pass: Minor 1/10 PB C Pad C-39 C-39 V1 Out of range PB C Pad C-41 C-41 V1 11200.00 11200.00 0.00 0.00 0.00 FAIL: NOERRORS PB DS 15 15-23 15-23A V4 11925.00 12260.00 1184.77 87.41 1097.36 Pass: Major Risk Site: PB C Pad Well: C-13 Rule Assigned: Minor 1/10 Wellpath: C-13 V1 Inter-Site Error: 0.00 ft 11206.91 9007.22 10930.00 8647.79 75.40 333.21 21.12 292.29 7.000 931.73 0.00 931.73 Pass 11217.63 9008.46 10940.00 8653.78 75.44 334.15 21.92 291.90 7.000 928.20 0.00 928.20 Pass 11226.73 9009.16 10950.00 8659.76 75.51 334.89 22.17 291.59 7.000 924.68 0.00 924.67 Pass 11235.56 9009.62 10960.00 8665.75 75.57 335.61 22.39 291.27 7.000 921.17 0.00 921.17 Pass 11241.02 9009.78 10970.00 8671.72 75.57 336.30 22.57 290.96 7.000 917.70 0.00 917.70 Pass 11244.35 9009.85 10980.00 8677. 70 75.55 336.97 22.71 290.64 7.000 914.30 0.00 914.29 Pass 11247.66 9009.90 10990.00 8683.67 75.52 337.62 22.85 290.32 7.000 910.96 0.00 910.96 Pass 11250.95 9009.92 11000.00 8689.63 75.49 338.24 22.98 290.00 7.000 907.70 0.00 907.70 Pass 11254.22 9009.93 11010.00 8695.59 75.44 338.87 23.10 289.67 7.000 904.50 0.00 904.50 Pass 11257.46 9009.91 11020.00 8701.54 75.40 339.47 23.21 289.34 7.000 901.36 0.00 901.36 Pass 11260.68 9009.87 11030.00 8707.49 75.36 340.05 23.32 289.00 7.000 898.27 0.00 898.27 Pass 11263.88 9009.81 11040.00 8713.43 75.31 340.62 23.43 288.67 7.000 895.23 0.00 895.23 Pass 11266.02 9009.76 11050.00 8719.36 75.27 341.20 23.41 288.33 7.000 892.25 0.00 892.25 Pass 11268.14 9009.73 11060.00 8725.29 75.22 341.78 23.39 287.98 7.000 889.34 0.00 889.34 Pass 11270.28 9009.70 11070.00 8731.21 75.16 342.35 23.37 287.64 7.000 886.49 0.00 886.49 Pass 11272.43 9009.67 11080.00 8737.12 75.11 342.90 23.36 287.29 7.000 883.71 0.00 883.71 Pass 11275.00 9009.66 11090.00 8743.03 75.05 343.42 23.40 286.94 7.000 881.00 0.00 881.00 Pass 11275.00 9009.66 11100.00 8748.93 75.05 344.10 23.05 286.59 7.000 878.36 0.00 878.36 Pass 11275.00 9009.66 11110.00 8754.82 75.05 344.80 22.70 286.24 7.000 875.81 0.00 875.81 Pass 11275.00 9009.66 11120.00 8760.70 75.05 345.51 22.34 285.89 7.000 873.36 0.00 873.36 Pass 11283.41 9009.68 11130.00 8766.58 74.78 345.54 23.28 285.53 7.000 870.87 0.00 870.87 Pass 11285.65 9009.71 11140.00 8772.44 74.70 346.04 23.26 285.18 7.000 868.54 0.00 868.54 Pass All Measurements are from top of Riser 9/22/2004 ~ Q) (f) 0- a: C-41 A top of bag BAG bttm of bag middle of slips Blind/Shears ........ ..................... middle of pipes 2" combi ram/slips TOTs I .... ...................... ....---.. - .---.. middle of flow cross Mud Cross Mud Cross "---" '---.,¡ middle of blind/shears I I 23/8" ram t·· ........................ TOTs t ." ....................... middle of pipelslips 2" combi ram/slips Flow Tee . TERRIE L HUBBLE BP EXPLORATION AK INC PO BOX 196612 MB 7-5 ANCHORAGE, AK 99519-6612 89-6/1252 146 DATErn~:23 ~Lf PAY TO THE \. R -f}: S/ ÎJ(L . n /.' /ìr)6 C C- $ /011 ðO ORDER OF ~D.XJL.-.~ \Jö«1~ nV I U ¡ ()00~. ~c&j\Q¿2 ChÝ CDJ~-~ ·DÚLLAHS- First National Bank Alaska ~ Anchora71' AK 99501 /' - >.-/J L-L ¡J.Ø;l MEMO (~.. L( { ff 't!~ VT. ~ "Mastercard Check" . I: }. 25 2000 bOI: q q }. 1.111 b 2 27111 ¡. 55 bU- 0 ¡'L. b . . TRANSMIT AL LETTER CHECK LIST CIRCLE APPROPRIATE LETTERIP ARAGRAPHS TO BE INCLUDED IN TRANSMITTAL LETTER WELLNAMEf'¿cr C-tf)A PTD# 20'f - / <6<6 X Development Service CHECK WßA T APPLIES ADD-ONS (OPTIONS) MULTI LATERAL (If API Dumber last two. (2) digits are between 60-69) PILOT (PH) Exploration Stratigraphic ~'CLUEn Tbe permit is for a Dew weJlboresegmeDt of existing well· . Permit No, .. API No. Production sbould continue to be reported as a function ·of tbe original API Dumber. stated above. HOLE In accordance witb 20 AAC 25.005(1), aJI records, data and Jogs acquired for tbe pilot bole must be clearly differentiated In both name (name on permit plus PH) and API Dumber (SO 70/80) from records, data and logs acquired for wen (name on permit). SPACING EXCEPTION DRY DITCH SAMPLE The permit is approved subject ·to fuD compliance with 20 AAC 25.055~ Approval to perforate and produce is contingent upon issuance of ~ conservation order approving a spacing exception. (Company Name) assumes tbe liability of any protest to the spacing .exception tbat may occur. AU dry ditch sampJe sets submitted to tbe Commission must be in no greater 1ban 30' sampJe intervals from beJow the permafrost or from where sampJes are first caugbt and 10' sampJe inter-vab tbrougb target zones. . . o o Well bore seg Annular Disposal Field & Pool PRUDHOE BAY, PRUDHOE OIL - 640150 Well Name: PRUDHOE BAY UNIT C-41A Program DEV PTD#: 2041880 Company BP EXPLORATION (ALASKA) INC Initial ClasslType DEV 11-01L GeoArea 890 Unit 11650 On/Off Shore On Administration ' 1 Perm it. fee <!ttache~ _ _ Yes - - - - - - - - - - - 2 le<!se _number _appropri<it.e _ _ _ Yes 3 _U_nique weltnarne_aod oumb_er _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ . _ _ _ _Yes - - - - - - . - - - - - - - - - - - - - - - - . - 4 Well JOC<lted in_a d_efine~ -ppol_ Yes - - - - - 5 WelUocated pr_operdistance_ from drilling unit.bÞund_a[y_ _ Yes - - - - - 6 Well Joc¡:¡ted proper _distance from other wells_ . Yes - - - - - ~ 7 S_ufficient <icre<!ge_ay<!iI<ible [ndrilliog uniL _ _ _ Yes 8 J(deviated, js weJlbore plaUncJuded _ . _ - - - - Yes 9 _O-perator only: <!ffected party _ . - - - - - - - - - Yes - - - - - 10 _O-Perator bas_apprppriateJ~ond inJorce _ _ _ _ . _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes - - - - - - - - - -. - - - - - - - - - - - - -- 11 Permit. cao be issued witbout co_nservation order _ _ _ _ _ _ Yes Appr Date 12 Permit. c_ao be issued without administrati\(eapprovaJ _ _ _ _ Yes - - - - - - - - - - - -- RPC 9/24/2004 13 Can permit be approved before 15-day wait Yes 14 Well Jocat.ed within area and_strata _aut\'1orized by_lojectioo Order # (puUO# in_cÞmrneots) (For. NA 15 All wells_witÞinJl4JlJile_area_of reyiew id_eot[fied (FOr sefVjc_e-,^~e!l pnlYL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _NA - - - - - - - - - - - - - - - - - - - - - - . - - 16 Pre-prpduçed ioj¡;¡ctor; ~ur<ition_of pre-pro~uctipo les$ th<!n 3 months_ (For_service well only) _ _NA 17 ACMP_ finding þf Consi$teocyhas beefl Js_sued_ for tbis proieçt _ _NA - - -- Engineering 18 CÞoductor string_provided _ _ . _ _ _ _ _ _ - - - - - - - - - - NA - - - - - 19 _Sw:f<!ce _ca$ing_pJotect$ <!1I_known USDWs _ _NA - - - - - 20 CMTv_oladequ_ateJo circ_ulate.ofl_cond_uctor& $urfcsg _ _ _ _NA - - - - - - - - - - - - - - - 21 _CMT vol adequateJo tie-inJongstriog to_surf csg_ _ _ _ . _ - - - - - _ NA 22 _CMT will coyer :all Koown _productiye borizon_s _ . Yes - - - - - - - - - - - 23 _C_asiog desigos ad_eQuate for C,_T" B_&_pEmuafrost . Yes 24 _Mequatet<!nkage_oJ re.serve pit _ _ _ _ Yes CTDU. - - - - - - 25 Jfare-~rilt h<!sa to-403 for abandonmeflt beeo approved _ Yes * 26 _A~equ<ite-"...e!lbore$eparatiofl_propose~_ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Yes - - - - - - - - - - - - - - - - - - - - - - - -- 27 Jfdiverter req_uired, does it meet. reguJations_ _ _ NA Sidetrack. Appr Date 28 _Drilliog fJuidprogram schematic_& eCl-uipJistadequat.e_ _ _. Yes _ Max MW8,9 ppg. _ WGA 9/24/2004 29 _BOPEs,d_o Jhey meet reguJaJiOI) . _ - - - - - - _.. Yes - - - - - - - - - - - 30 BOPEpress raJiog apProPriate; _test t.o _(put psig in _commentsL _ - - - - - - - Yes . _ Test to 35QO psi. _MSP 2355 psi. 31 .Choke_manifold cQmpJies_ w/APt RP-53 (May 84) _ . - - - - - - - - - - - Yes 32 Wons will PCCUr withputoperç¡tion.sbutdown_ Yes 33 J$ pre$eoce_ of H2S gas_ proQable. . - - -- No_ . _ _ l\JoLao H2S pad_" 34 Meçhan[calcood.iUoo of wells within AOR yeriJiect (fpr_s_ervice welJ only)_ NA Geology 35 P~rmit c_ao be iS$"ed w[o hydrogen sulfide me<!SUres. _ _ . . No 36 _D_ata_preseoted on_ pote_ntial oveJpre$surezones_ - - - - - - - -- NA Appr Date 37 _SeLsm[canalys.is_ of shaJlow gaszooes _ . . _ _ _ . _ _NA - - - - RPC 9/24/2004 38 _Seabe~condjtjoo survey Jif off-shore) . . NA - - - - - - - - - 39 . Contact namelpÞoneJorweelsly progress reports [explorato[y _only] _ . NA Geologic Engineering Date Public Date Commissioner: Date: Commissioner: ~~"e' DìJ l' ( ( 4-( 4-.. ~~~ . . Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify fmding infonnation, information of this nature is accumulated at the end of the file under APPENDIX. No special effort has been made to chronologically organize this category of information. . Sperry-Sun Drilling Services LIS Scan Utility . $Revision: 3 $ LisLib $Revision: 4 $ Wed Feb 15 15:59:40 2006 Reel Header Service name....... ..... .LISTPE Date. . . . . . . . . . . . . . . . . . . . .06/02/15 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name.......... ..... . UNKNOWN Continuation Number..... .01 Previous Reel Name.. .... . UNKNOWN Comments..... ........... .STS LIS writing Library. Scientific Technical Services Tape Header Service name...... ...... .LISTPE Date. . . . . . . . . . . . . . . . . . . . .06/02/15 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name.......... .... ..UNKNOWN Continuation Number..... .01 Previous Tape Name..... ..UNKNOWN Comments........... ......STS LIS writing Library. Scientific Technical Services Physical EOF q 1-;718 Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS # WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: # JOB DATA j C-41A 500292238501 BP Exploration (Alaska) Inc.' Sperry Drilling Services 15-FEB-06 JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 2 MW0003385029 B. JAHN B. LAULE / R MWD RUN 3 MW0003385029 B. JAHN B. LAULE / R MWD RUN 5 MW0003385029 B. JAHN B. LAULE / R JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 7 MW0003385029 B. JAHN B. LAULE / R MWD RUN 8 MW0003385029 B. JAHN B. LAULE / R MWD RUN 11 MW0003385029 S. LATZ R. WHITLOW/J JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 12 MW0003385029 S. LATZ R. WHITLOW/J # SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION (FT FROM MSL 0) 19 llN 14E 1930 884 ;2~v{-(~3 . KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: 72.60 . # WELL CASING RECORD 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 3.000 4.500 11502.0 # REMARKS: 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH - SUBSEA (TVDSS) . 3. THIS WELL IS AN OPENHOLE SIDETRACK, EXITING THE C-41A PB1 WELLBORE AT 12200'MD. 4. MWD RUNS 2,3,5,7,8,11,12 COMPRISED DIRECTIONAL AND NATURAL GAMMA RAY (PCG), UTILIZING SCINTILLATION DETECTORS. UPHOLE SGRD TIE-IN DATA ACQUIRED WHILE RIH FOR MWD RUN 2 WERE MERGED WITH RUN 2 MWD DATA. NO DATA WERE ACQUIRED ON MWD RUNS 4,6,9,10. 5. LOG AND DIGITAL DATA (LDWG) ONLY WERE SHIFTED TO A CASED-HOLE GAMMA RAY PROVIDED TO SDS BY D. DORTCH (SAIC/BP) ON 2/13/06. LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTH REFERENCES. 6. MWD RUNS 2,3,5,7,8,11,12 REPRESENT WELL C-41A WITH API#: 50-029-22385-01. THIS WELL REACHED A TOTAL DEPTH (TD) OF 13513'MD/8956'TVDSS. SROP SGRD $ SMOOTHED RATE OF PENETRATION WHILE DRILLING. SMOOTHED NATURAL GAMMA RAY. File Header Service name............ .STSLIB.001 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record..65535 File Type.............. ..LO Previous File Name...... .STSLIB.OOO Comment Record FILE HEADER FILE NUMBER: EDITED MERGED MWD Depth shifted DEPTH INCREMENT: # FILE SUMMARY PBU TOOL CODE GR ROP $ 1 and clipped curves; all bit runs merged. .5000 START DEPTH 11013.0 11521.5 STOP DEPTH 13482.5 13511.0 . # BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) --------- EQUIVALENT BASELINE DEPTH 11013.0 11014.5 11022.5 11027.0 11032.0 11037.0 11049.0 11056.0 11057.0 11059.5 11503.0 11507.5 11510.0 11513.0 11532.0 11533.5 11537.0 11541.5 11545.0 11550.0 11551.5 11556.5 11562.0 11566.5 11572.0 11577.0 11579.0 11582.5 11600.5 11625.0 11630.5 11639.5 11643.5 11660.0 11675.5 11708.5 11 710.0 11716.5 11721.0 11728.5 11748.5 11758.0 11765.0 11790.0 11809.5 11822.5 11838.0 11852.0 11872.0 11928.5 11934.0 11939.5 11953.0 11967.0 11978 . 0 11987.0 12032.5 12068.0 12079.0 12096.0 12108.5 12123.0 12126.0 GR 11011.5 11013.0 11019.0 11024.5 11031. 0 11036.0 11048.5 11053.5 11055.5 11057.0 11503.0 11507.0 11508.5 11510.5 11531.5 11535.0 11536.5 11543.0 11547.0 11549.5 11551.0 11558.0 11566.0 11569.5 11574.5 11579.5 11581.5 11584.5 11601.5 11627.5 11633.0 11641. 5 11645.5 11664.5 11679.0 11712.0 11713.0 11721.0 11724.5 11731.5 11751.5 11759.5 11768.0 11795.5 11814.5 11828.0 11845.5 11860.0 11877.5 11937.0 11944.0 11949.0 11960.5 11974.0 11981. 5 11991. 5 12038.0 12074.5 12085.5 12102.5 12115.0 12132.0 12135.5 . UNSHIFTED DEPTH ------- . . 12138.5 12167.5 12179.5 12194.0 12202.0 12204.0 12206.0 12217.0 12229.5 12234.0 12245.0 12249.5 12299.0 12303.0 12316.5 12318.5 12321.5 12323.5 12333.5 12368.0 12384.5 12390.0 12391.5 12401.5 12403.0 12404.5 12407.0 12410.5 12421.5 12424.5 12431.0 12481.5 12518.5 12525.0 12579.0 12710.0 12743.0 12752.0 12764.0 12803.5 12807.5 12811.0 12844.0 12847.0 12849.5 12852.0 12879.5 12903.5 12920.5 12961.5 12975.0 12980.0 12986.0 12989.5 12995.5 13008.5 13038.5 13051.0 13055.5 13073.0 13106.5 13162.0 13173.5 13190.0 13203.0 13207.0 13210.5 13218.0 12147.0 12174.0 12185.5 12198.5 12206.5 12208.0 12210.5 12220.5 12234.0 12238.0 12251.5 12255.5 12304.5 12308.5 12321.0 12323.0 12327.0 12329.0 12338.5 12374.0 12390.5 12396.0 12398.0 12407.5 12409.0 12410.5 12412.5 12415.5 12427.0 12430.0 12436.5 12489.5 12526.0 12533.5 12587.0 12715.5 12748.5 12757.5 12771.0 12809.5 12813.0 12816.0 12850.5 12853.5 12856.0 12858.0 12883.0 12905.0 12925.0 12968.0 12978.5 12982.0 12989.5 12993.0 12998.0 13012.0 13045.5 13058.5 13063.0 13078.0 13108.5 13167.5 13175.5 13193.5 13207.5 13211.0 13215.5 13221.5 13241.0 13281.0 13305.0 13511.0 $ # MERGED DATA SOURCE PBU TOOL CODE MWD MWD MWD MWD MWD MWD MWD $ # REMARKS: . 13242.0 13281.5 13307.0 13513.0 . BIT RUN NO 2 3 5 7 8 11 12 MERGE TOP 11011.5 11980.0 12200.0 12234.5 12552.0 12855.0 12927.0 MERGE BASE 11980.0 12200.0 12234.5 12552.0 12855.0 12927.0 13513.0 MERGED MAIN PASS. $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction.............. ...Down Optical log depth units......... ..Feet Data Reference Point............. .Undefined Frame Spacing.................... .60 .1IN Max frames per record. ... ...... ...Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name DEPT GR ROP Service Order MWD MWD units FT API FT/H Offset o 4 8 Channel 1 2 3 Size 4 4 4 Rep 68 68 68 Code Nsam 1 1 1 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 11013 13511 12262 4997 11013 13511 GR MWD API 15.97 1032.55 81. 2452 4081 11013 13482.5 ROP MWD FT/H 0.03 913.67 86.4071 3980 11521.5 13511 First Reading For Entire File......... .11013 Last Reading For Entire File......... ..13511 File Trailer Service name............ .STSLIB.OOl Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type...... . . . . . . . . . . LO Next File Name.......... .STSLIB.002 Physical EOF File Header Service name. ......... ...STSLIB.002 Service Sub Level Name... Version Number. ...... ....1.0.0 Date of Generation...... .06/02/15 . Maximum Physical Record. .65535 File Type............... .LO Previous File Name...... .STSLIB.001 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 2 . header data for each bit run in separate files. 2 .5000 START DEPTH 11011.5 11520.0 STOP DEPTH 11951.5 11980.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..... .... ..... ....0 Data Specification Block Type.....O 11-NOV-04 Insite Memory 11980.0 11524.0 11980.0 84.8 103.6 TOOL NUMBER TLG013 3.000 11502.0 Flo Pro 8.60 50.0 9.0 23000 12.0 .000 .000 .000 .000 .0 167.0 .0 .0 . Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units.......... .Feet Data Reference Point............. . Undefined Frame Spacing.................... .60 .1IN Max frames per record............ . Undefined Absent value........ ............. .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O . Service Order Units FT API FT/H Size 4 4 4 Nsam 1 1 1 Code Offset o 4 8 Channel 1 2 3 Name DEPT GR ROP MWD020 MWD020 Rep 68 68 68 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 11011.5 11980 11495.8 1938 11011.5 11980 GR MWD020 API 15.97 1032.55 86.3109 1017 11011.5 11951.5 ROP MWD020 FT/H 0.32 280.5 79.514 921 11520 11980 First Reading For Entire File......... .11011.5 Last Reading For Entire File.......... .11980 File Trailer Service name. ........... .STSLIB.002 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record..65535 File Type.. ............. .LO Next File Name.......... .STSLIB.003 Physical EOF File Header Service name............ .STSLIB.003 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation.. .... .06/02/15 Maximum Physical Record. .65535 File Type............... .LO Previous File Name...... .STSLIB.002 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 3 header data for each bit run in separate files. 3 .5000 START DEPTH 11952.0 11980.5 STOP DEPTH 12200.0 12199.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: 13-NOV-04 Insite . DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type................ ..0 Data Specification Block Type... ..0 Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units.......... .Feet Data Reference Point............. .Undefined Frame Spacing.................... .60 .1IN Max frames per record............ .Undefined Absent value...................... -999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name Service Order DEPT GR MWD030 ROP MWD030 Units FT API FT/H Code Size 4 4 4 Nsam Rep 1 68 1 68 1 68 Memory 12200.0 11980.0 12200.0 . 77.8 96.8 TOOL NUMBER TLG005 3.000 11502.0 Flo Pro 8.60 65.0 9.1 24000 6.8 .000 .000 .000 .000 .0 183.9 .0 .0 Offset o 4 8 Channel 1 2 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 11952 12200 12076 497 11952 12200 GR MWD030 API 35.7 211.57 86.6326 497 11952 12200 ROP MWD030 FT/H 48.46 149.85 109.704 439 11980.5 12199.5 . First Reading For Entire File......... .11952 Last Reading For Entire File.......... .12200 . File Trailer Service name........ .... .STSLIB.003 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation.......06/02/15 Maximum Physical Record. .65535 File Type........... .... .LO Next File Name......... ..STSLIB.004 Physical EOF File Header Service name............ .STSLIB.004 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type............... .LO Previous File Name..... ..STSLIB.003 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE ROP GR $ 4 header data for each bit run in separate files. 5 .5000 START DEPTH 12200.0 12200.5 STOP DEPTH 12234.5 12206.5 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: 14-NOV-04 Insite Memory 12235.0 12200.0 12235.0 84.6 90.2 # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray TOOL NUMBER TLG005 # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 3.000 11502.0 # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: Flo Pro 8.60 65.0 9.2 . MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: 24000 9.6 . .000 .000 .000 .000 .0 188.1 .0 .0 # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type................ ..0 Data Specification Block Type.....O Logging Direction... ............. . Down Optical log depth units.......... .Feet Data Reference Point............. .Undefined Frame Spacing................... ..60 .1IN Max frames per record............ . Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type. ..0 Service Order Units FT API FT/H Size 4 4 4 Nsam 1 1 1 Code Offset o 4 8 Channel 1 2 3 Name DEPT GR ROP MWD050 MWD050 Rep 68 68 68 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12200 12234.5 12217.3 70 12200 12234.5 GR MWD050 API 57.42 97.8 68.4531 13 12200.5 12206.5 ROP MWD050 FT/H 0.03 285.43 28.4991 70 12200 12234.5 First Reading For Entire File..... ... ..12200 Last Reading For Entire File.......... .12234.5 File Trailer Service name............ .STSLIB.004 Service Sub Level Name... Version Number.... ...... .1.0.0 Date of Generation..... ..06/02/15 Maximum Physical Record..65535 File Type............... .LO Next File Name.......... .STSLIB.005 Physical EOF File Header Service name............ .STSLIB.005 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 . File Type............... .LO Previous File Name...... .STSLIB.004 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 5 . header data for each bit run in separate files. 7 .5000 START DEPTH 12207.0 12235.0 STOP DEPTH 12524.0 12552.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT); MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction. . . . . . . . . . . . . . . . . Down 15-NOV-04 Insite Memory 12552.0 12235.0 12552.0 86.5 97.9 TOOL NUMBER TLGOOS 3.000 11502.0 Flo Pro 8.60 65.0 9.0 24000 12.0 .000 .000 .000 .000 .0 179.7 .0 .0 . Optical log depth units.......... .Feet Data Reference Point............. .Undefined Frame Spacing.................... .60 .1IN Max frames per record............ .Undefined Absent value. . . . . . . . . . . . . . . . . . . . . . -999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O . Service Order Units FT API FT/H Size 4 4 4 Nsam 1 1 1 Code Offset o 4 8 Channel 1 2 3 Name DEPT GR ROP MWD070 MWD070 Rep 68 68 68 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12207 12552 12379.5 691 12207 12552 GR MWD070 API 41. 68 491. 1 97.7208 635 12207 12524 ROP MWD070 FT/H 1. 77 444.07 85.6635 635 12235 12552 First Reading For Entire File....... ...12207 Last Reading For Entire File.......... .12552 File Trailer Service name............ .STSLIB.005 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type............... .LO Next File Name......... ..STSLIB.006 Physical EOF File Header Service name............ .STSLIB.006 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type........... .... .LO Previous File Name...... .STSLIB.005 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 6 header data for each bit run in separate files. 8 .5000 START DEPTH 12524.5 12552.5 STOP DEPTH 12827.5 12855.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : 16-NOV-04 Insite Memory . TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type................ ..0 Data Specification Block Type.....O Logging Direction... ............. . Down Optical log depth units.......... .Feet Data Reference Point............. .Undefined Frame Spacing.................... .60 .1IN Max frames per record............ . Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name DEPT GR ROP Service Order Units FT API FT/H Nsam Rep 1 68 1 68 1 68 Code Size 4 4 4 MWD080 MWD080 12855.0 12552.0 12855.0 . 87.7 92.0 TOOL NUMBER TLG005 3.000 11502.0 Flo Pro 8.60 65.0 9.0 24000 7.2 .000 .000 .000 .000 .0 179.7 .0 .0 Offset o 4 8 Channel 1 2 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12524.5 12855 12689.8 662 12524.5 12855 GR MWD080 API 49.21 386.27 83.2051 607 12524.5 12827.5 ROP MWD080 FT/H 2.08 913.67 106.843 606 12552.5 12855 First Reading For Entire File......... .12524.5 . Last Reading For Entire File.......... .12855 . File Trailer Service name............ .STSLIB.006 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type.............. ..LO Next File Name...... ... ..STSLIB.007 Physical EOF File Header Service name............ .STSLIB.007 Service Sub Level Name... Version Number......... ..1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type................ LO Previous File Name...... .STSLIB.006 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 7 header data for each bit run in separate files. 11 .5000 START DEPTH 12828.0 12855.5 STOP DEPTH 12899.0 12927.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: 20-NOV-04 Insite Memory 12927.0 12855.0 12927.0 91. 4 92.7 # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray TOOL NUMBER TLG013 # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 3.000 11502.0 # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): Flo-Prp 8.60 65.0 9.4 24000 . 8.6 . .000 .0 .000 179.7 .000 .0 .000 .0 FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type... ..0 Logging Direction.. .............. . Down Optical log depth units.......... .Feet Data Reference Point... ......... ..Undefined Frame Spacing....... ... .......... .60 .1IN Max frames per record........... ..Undefined Absent value. ............... .... ..-999 Depth Uni ts . . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type. ..0 Name Service Order DEPT GR MWDllO ROP MWDllO units FT API FT/H Size 4 4 4 Nsam 1 1 1 Code Offset o 4 8 Channel 1 2 3 Rep 68 68 68 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12828 12927 12877.5 199 12828 12927 GR MWD110 API 49.14 168.49 82.3532 143 12828 12899 ROP MWD110 FT/H 1.16 61.24 31.1441 144 12855.5 12927 First Reading For Entire File......... .12828 Last Reading For Entire File.......... .12927 File Trailer Service name............ .STSLIB.007 Service Sub Level Name. . . Version Number... .... ....1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type.. ..... ...... ...LO Next File Name.......... .STSLIB.008 Physical EOF File Header Service name............ .STSLIB.008 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation. .... ..06/02/15 Maximum Physical Record. .65535 File Type............... .LO . Previous File Name...... .STSLIB.007 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 8 . header data for each bit run in separate files. 12 .5000 START DEPTH 12899.5 12927.5 STOP DEPTH 13484.5 13513.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type.. ................0 Data Specification Block Type.....O Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units.......... .Feet 21-NOV-04 Insite Memory 13513.0 12927.0 13513.0 86.8 92.6 TOOL NUMBER TLG005 3.000 11502.0 Flo Pro 8.60 65.0 9.3 45000 6.8 .000 .000 .000 .000 .0 179.7 .0 .0 . Data Reference Point............. .Undefined Frame Spacing.................... .60 .1IN Max frames per record............ .Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O . Service Order Units FT API FT/H Size 4 4 4 Nsam 1 1 1 Code Offset o 4 8 Channel 1 2 3 Name DEPT GR ROP MWD12 0 MWD120 Rep 68 68 68 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 12899.5 13513 13206.3 1228 12899.5 13513 GR MWD12 0 API 32.33 115.5 63.2716 1171 12899.5 13484.5 ROP MWD12 0 FT/H 0.54 331.31 83.7033 1172 12927.5 13513 First Reading For Entire File......... .12899.5 Last Reading For Entire File.......... .13513 File Trailer Service name............ .STSLIB.008 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type......... ...... .LO Next File Name.......... .STSLIB.009 Physical EOF Tape Trailer Service name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .06/02/15 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name............... . UNKNOWN Continuation Number..... .01 Next Tape Name.......... .UNKNOWN Comments................ .STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .06/02/15 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name............... .UNKNOWN Continuation Number..... .01 Next Reel Name.......... . UNKNOWN Comments................ .STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File . Sperry-Sun Drilling Services LIS Scan Utility . $Revision: 3 $ LisLib $Revision: 4 $ Wed Feb 15 13:44:18 2006 Reel Header Service name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .06/02/15 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name............... . UNKNOWN Continuation Number..... .01 Previous Reel Name..... ..UNKNOWN Comments................ .STS LIS Writing Library. Scientific Technical Services Tape Header Service name........... ..LISTPE Date.................... .06/02/15 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name.......... ..... . UNKNOWN Continuation Number..... .01 Previous Tape Name...... . UNKNOWN Comments................ .STS LIS Writing Library. Scientific Technical Services Physical EOF )1 q ~ Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS # WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: # JOB DATA // ./' C-41A PB1 500292238570 BP Exploration (Alaska) Inc. Sperry Drilling Services 15-FEB-06 JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: MWD RUN 2 MW0003385029 B. JAHN B. LAULE /R. MWD RUN 3 MW0003385029 B. JAHN B. LAULE /R. # SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION (FT FROM KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: 19 llN 14E 1930 884 MSL 0) 72.60 # WELL CASING RECORD 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 3.000 4.500 11502.0 # ~ D'-f-l g 8 REMARKS: . . 1. ALL DEPTHS ARE MEASURED DEPTH (MD) UNLESS OTHERWISE NOTED. THESE DEPTHS ARE BIT DEPTHS. 2. ALL VERTICAL DEPTHS ARE TRUE VERTICAL DEPTH - SUBSEA (TVDSS) . 3. THIS WELL WAS DRILLED FROM A WHIPSTOCK, THE TOP OF WHICH WAS AT 11502' MD. THE WHIPSTOCK WAS POSITIONED DURING MWD RUN 1 - NO DATA ARE PRESENTED. 4. MWD RUNS 2 AND 3 COMPRISED DIRECTIONAL AND NATURAL GAMMA RAY (PCG) , UTILIZING SCINTILLATION DETECTORS. UPHOLE SGRD TIE-IN DATA ACQUIRED WHILE RIH FOR MWD RUN 2 WERE MERGED WITH RUN 2 MWD DATA. 5. LOG AND DIGITAL DATA (LDWG) ONLY WERE SHIFTED TO A CASED-HOLE GAMMA RAY PROVIDED TO SDS BY D. DORTCH (SAIC/BP) ON 2/13/06. LOG HEADER DATA RETAIN ORIGINAL DRILLER'S DEPTH REFERENCES. 6. MWD RUNS 2 AND 3 REPRESENT WELL C-41A PB1 WITH API#: 50-029-22385-70. THIS WELL REACHED A TOTAL DEPTH (TD) OF 13088'MD/8951'TVDSS. SROP SGRD $ SMOOTHED RATE OF PENETRATION WHILE DRILLING. SMOOTHED NATURAL GAMMA RAY. File Header Service name............ .STSLIB.001 Service Sub Level Name... Version Number. ......... .1.0.0 Date of Generation..... ..06/02/15 Maximum Physical Record. .65535 File Type.......... ......LO Previous File Name.. .... .STSLIB.OOO Comment Record FILE HEADER FILE NUMBER: EDITED MERGED MWD Depth shifted DEPTH INCREMENT: # FILE SUMMARY PBU TOOL CODE GR ROP $ 1 and clipped curves; all bit runs merged. .5000 START DEPTH 11013.0 11521. 5 STOP DEPTH 13055.0 13083.5 # BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) --------- EQUIVALENT UNSHIFTED DEPTH --------- BASELINE DEPTH 11013 .0 11014.5 11022.5 11027.0 11032.0 11037.0 11049.0 11056.0 GR 11011.5 11013.0 11019.0 11024.5 11031. 0 11036.0 11048.5 11053.5 11057.0 11059.5 11503.0 11507.5 11510.0 11513.0 11532.0 11533.5 11537.0 11541.5 11545.0 11550.0 11551. 5 11556.5 11562.5 11566.5 11572.0 11577.0 11579.0 11582.5 11600.5 11625.0 11630.5 11639.5 11643.5 11660.0 11675.5 11708.5 11 710.0 11716.5 11721.0 11728.5 11748.5 11758.0 11765.0 11790.0 11809.5 11823.0 11838.0 11852.0 11872.0 11928.5 11934.0 11939.5 11953.0 11967.0 11978.0 11987.0 12032.5 12068.0 12096.0 12108.5 12123.0 12126.0 12138.5 12167.5 12179.5 12194.0 13083.5 $ # MERGED DATA SOURCE PBU TOOL CODE MWD MWD $ # REMARKS: . 11055.5 11057.0 11503.0 11507.0 11508.5 11510.5 11531.5 11535.0 11536.5 11543.0 11547.0 11549.5 11551.0 11558.0 11566.0 11569.5 11574.5 11579.5 11581. 5 11584.5 11601.5 11627.5 11633.0 11641. 5 11645.5 11664.5 11679.0 11 712 .0 11 713 . 0 11721.0 11724.5 11731.5 11751. 5 11759.5 11768.0 11795.5 11814.5 11828.0 11845.5 11860.0 11877.5 11937.0 11944.0 11949.0 11960.5 11974.0 11981.5 11991.5 12038.0 12074.5 12102.5 12115.0 12132.0 12135.5 12147.0 12174.0 12185.5 12198.5 13088.0 BIT RUN NO 2 3 MERGED MAIN PASS. MERGE TOP 11011.5 11980.0 . MERGE BASE 11980.0 13088.0 $ . . # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction. . . . . . . . . . . . . . . . . Down Optical log depth units.......... .Feet Data Reference Point......... ... ..Undefined Frame Spacing.. ......... .... .... ..60 .1IN Max frames per record........... ..Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Service Order Units FT FT/H API Size 4 4 4 Nsam 1 1 1 Code Offset o 4 8 Channel 1 2 3 Name DEPT ROP GR MWD MWD Rep 68 68 68 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 11013 13083.5 12048.3 4142 11013 13083.5 ROP MWD FT/H 0.32 4308.04 116.312 3125 11521.5 13083.5 GR MWD API 15.97 1032.55 84.192 3226 11013 13055 First Reading For Entire File......... .11013 Last Reading For Entire File.......... .13083.5 File Trailer Service name............ .STSLIB.001 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type............... .LO Next File Name.......... .STSLIB.002 Physical EOF File Header Service name............ .STSLIB.002 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type............... .LO Previous File Name... ... .STSLIB.001 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 2 header data for each bit run in separate files. 2 .5000 START DEPTH 11011. 5 11520.0 STOP DEPTH 11951. 5 11980.0 # . LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): # BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type..................O Data Specification Block Type.....O Logging Direction...... ..... ... ...Down Optical log depth units... ..... ...Feet Data Reference Point..... ..... .., . Undefined Frame Spacing...... ............. ..60 .1IN Max frames per record............ . Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type. ..0 Name Service Order DEPT ROP MWD020 GR MWD020 Size 4 4 4 Units FT FT/H API Nsam Rep 1 68 1 68 1 68 Code Name Service Unit Min Max 11-NOV-04 Insite Memory 11980.0 11524.0 11980.0 84.8 103.6 TOOL NUMBER TLG013 3.000 11502.0 Flo Pro 8.60 50.0 9.0 23000 12.0 .000 .000 .000 .000 Offset o 4 8 Channel 1 2 3 Mean Nsam . .0 167.0 .0 .0 First Reading Last Reading DEPT ROP GR . 11011.5 0.32 15.97 1938 921 1017 FT MWD020 FT/H MWD020 API 11980 280.5 1032.55 11495.8 79.514 86.3109 First Reading For Entire File......... .11011.5 Last Reading For Entire File.......... .11980 File Trailer Service name........ .... .STSLIB.002 Service Sub Level Name... Version Number... ....... .1.0.0 Date of Generation. ..... .06/02/15 Maximum Physical Record. .65535 File Type.......... ..... .LO Next File Name.......... .STSLIB.003 Physical EOF File Header Service name............ .STSLIB.003 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation...... .06/02/15 Maximum Physical Record. .65535 File Type............... .LO Previous File Name...... .STSLIB.002 Comment Record FILE HEADER FILE NUMBER: RAW MWD Curves and log BIT RUN NUMBER: DEPTH INCREMENT: # FILE SUMMARY VENDOR TOOL CODE GR ROP $ 3 .011.5 11520 11011.5 11980 11980 11951.5 header data for each bit run in separate files. 3 .5000 START DEPTH 11952.0 11980.5 STOP DEPTH 13059.5 13088.0 # LOG HEADER DATA DATE LOGGED: SOFTWARE SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME) : TD DRILLER (FT): TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: 13-NOV-04 Insite Memory 13088.0 11980.0 13088.0 77.8 96.8 # TOOL STRING (TOP TO VENDOR TOOL CODE PCG $ BOTTOM) TOOL TYPE Natural gamma ray TOOL NUMBER TLG005 # BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLER'S CASING DEPTH (FT): 3.000 11502.0 # . BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S): MUD PH: MUD CHLORIDES (PPM): FLUID LOSS (C3): RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT): MUD AT MAX CIRCULATING TERMPERATURE: MUD FILTRATE AT MT: MUD CAKE AT MT: # NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): # TOOL STANDOFF (IN): EWR FREQUENCY (HZ): # REMARKS: $ # Data Format Specification Record Data Record Type.... ..............0 Data Specification Block Type.....O Logging Direction.......... .... ...Down Optical log depth units.. ....... ..Feet Data Reference Point............. .Undefined Frame Spacing.................... .60 .1IN Max frames per record............ .Undefined Absent value..................... .-999 Depth Units. . . . . . . . . . . . . . . . . . . . . . . Datum Specification Block sub-type...O Name Service Order DEPT ROP MWD030 GR MWD030 Units FT FT/H API Size 4 4 4 Nsam Rep 1 68 1 68 1 68 Code . Flo Pro 8.60 65.0 9.1 24000 6.8 .000 .000 .000 .000 .0 183.9 .0 .0 Offset o 4 8 Channel 1 2 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 11952 13088 12520 2273 11952 13088 ROP MWD030 FT/H 10.7 4308.04 131.303 2216 11980.5 13088 GR MWD030 API 33.8 281.87 82.365 2216 11952 13059.5 First Reading For Entire File......... .11952 Last Reading For Entire File.......... .13088 File Trailer Service name............ .STSLIB.003 Service Sub Level Name... Version Number.......... .1.0.0 Date of Generation. ..... .06/02/15 Maximum Physical Record. .65535 File Type. . . . . . . . . . . . . . . .LO Next File Name.......... .STSLIB.004 Physical EOF Tape Trailer · . . Servlce name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .06/02/15 Origin. . . . . . . . . . . . . . . . . . . STS Tape Name............... . UNKNOWN Continuation Number..... .01 Next Tape Name.......... . UNKNOWN Comments................ .STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name............ .LISTPE Date. . . . . . . . . . . . . . . . . . . . .06/02/15 Origin. . . . . . . . . . . . . . . . . . . STS Reel Name.... ......... ...UNKNOWN Continuation Number..... .01 Next Reel Name. ...... ....UNKNOWN Comments.......... ...... .STS LIS Writing Library. Scientific Technical Services Physical EOF Physical EOF End Of LIS File