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Home My WebLink About205-093CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. From:Regg, James B (OGC) To:AOGCC Records (CED sponsored) Subject:FW: NOT OPERABLE: Producer 15-20C (PTD #2050930) MIT-T Failed Date:Friday, March 18, 2022 10:03:43 AM Jim Regg Supervisor, Inspections AOGCC 333 W. 7th Ave, Suite 100 Anchorage, AK 99501 907-793-1236 From: PB Wells Integrity <PBWellsIntegrity@hilcorp.com> Sent: Friday, March 18, 2022 6:38 AM To: Regg, James B (OGC) <jim.regg@alaska.gov> Cc: Wallace, Chris D (OGC) <chris.wallace@alaska.gov>; Bo York <byork@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Subject: NOT OPERABLE: Producer 15-20C (PTD #2050930) MIT-T Failed Mr. Regg, Producer 15-20C (PTD # 2050930) has been secured with a tubing tail plug. The well failed an MIT-T and passed CMIT-TxIA on 03/17/22 which verifies failed primary well barrier. The well is now classified as NOT OPERABLE and will remain shut in until well barriers are restored. Please call with any questions or concerns. Ryan Holt Hilcorp Alaska LLC Field Well Integrity / Compliance Ryan.Holt@Hilcorp.com P: (907) 659-5102 M: (907) 232-1005 From: PB Wells Integrity Sent: Tuesday, March 15, 2022 8:36 AM To: Regg, James B (CED) <jim.regg@alaska.gov> Cc: chris.wallace@alaska.gov; Bo York <byork@hilcorp.com>; Oliver Sternicki <Oliver.Sternicki@hilcorp.com> Subject: UNDER EVALUATION: Producer 15-20C (PTD #2050930) Failed TIFL Mr. Regg, Producer 15-20C (PTD #2050930) failed a TIFL on 03/14/22 and sustained IA casing pressure (2300 psi) over NOL was reported on 03/15/22. The well is classified as UNDER EVALUATION and on a 28 day clock to be resolved. Plan Forward: 1. Slickline: Set TTP 2. Fullbore: MIT-T 3. Well Integrity: Further diagnostics as required. Please call with any questions or concerns. Ryan Holt Hilcorp Alaska LLC Field Well Integrity / Compliance Ryan.Holt@Hilcorp.com P: (907) 659-5102 M: (907) 232-1005 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. From:PB Wells Integrity To:Regg, James B (OGC) Cc:Wallace, Chris D (OGC); Bo York; Oliver Sternicki Subject:UNDER EVALUATION: Producer 15-20C (PTD #2050930) Failed TIFL Date:Tuesday, March 15, 2022 8:36:27 AM Mr. Regg, Producer 15-20C (PTD #2050930) failed a TIFL on 03/14/22 and sustained IA casing pressure (2300 psi) over NOL was reported on 03/15/22. The well is classified as UNDER EVALUATION and on a 28 day clock to be resolved. Plan Forward: 1. Slickline: Set TTP 2. Fullbore: MIT-T 3. Well Integrity: Further diagnostics as required. Please call with any questions or concerns. Ryan Holt Hilcorp Alaska LLC Field Well Integrity / Compliance Ryan.Holt@Hilcorp.com P: (907) 659-5102 M: (907) 232-1005 The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, please immediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. • • 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. ~~~ - ~ ~' ~ Well History File Identifier Organizing (done) ,.~,,d~ iuimmmuiiii ae=v~~ttaed iuuimAiuiuu RESCAN olor Items: ^ Greyscale Items: ^ Poor Quality Originals: ^ Other: ^ Logs of various kinds: NOTES: BY: Maria Date: I b b ^ Other:: /s/ Project Proofing III IIIIII VIII II III BY: Maria Date: l l /s/ Scanning Preparation ~_ x 30 = ~ d + ~l4 =TOTAL PAGES ~~b BY: M i ~ t D /Q ' ~COUnt does not i S~ude cover sheet) ,n ~ ar a e: ` a 3O ~ Production Scanning Stage 1 Page Count from Scanned File: _~'`,t- (Count does include co r sheet) Page Count Matches Number in Scanning Preparation: YES NO BY: Maria Date:' ~ 13 D ~ D ~ /s/ `~ ~1 Stage 1 If NO in stage 1, page(s) discrepancies were found: YES NO DIGITAL DATA Diskettes, No. ^ Other, No/Type: OVERSIZED (Scannable) ^ Maps: ^ Other Items Scannable by a Large Scanner OVERSIZED (Non-Scannable) BY: Maria Date: /s/ Scanning is complete at this point unless rescanning is required. II I II II II I II II I I III ReScanned III II'lII VIII II III Maria Date: /s/ Comments about this file: o~,~.~~,~,aa uumiiiiiiuiui 10/6/2005 Well History File Cover P~ge.doc • BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 January 1, 2010 Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 333 West 7t" Avenue Anchorage, Alaska 99501 ~ra 11 w ~ u~~ ;i'r~'~~~.'~ ~~~.. p~3 ~f °~'~~ Subject: Corrosion Inhibitor Treatments of GPB DS 15 Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPB DS 15 that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10-404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Anna Dube. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10-404) DS-15 narP• nvnsiln Well Name PTD # API # Initial top of cement Vol. of cement um ed Final top of cement Cement top off date Corrosion inhibitor Corrosion inhibitor/ sealant date ft bbls ft na al 15-01 B 2042570 50029206960200- NA Sealed NA 15-028 2060720 50029206970200 NA Sealed NA 15-03 1820300 50029207220000 NA Sealed NA 15-046 2071380 50029207260200 NA Sealed NA 15-05A 1950340 50029207310100 NA Sealed NA 15-06A 1982540 50029207420100 NA 6.7 NA 40.8 11/7/2009 15-07C 2030970 50029211660300 NA 5 NA 34.0 11/10/2009 15-08C 2050050 50029211800300 NA 6.5 NA 45.9 11/28!2009 15-09A 1931380 50029212010100 NA 0.9 NA 5.1 11/11/2009 15-10A 1880850 50029205010100 NA Sealed NA 15-11 B 2041460 50029206530200 NA Sealed NA 15-126 2060870 50029206650200 NA Sealed NA 15-13A 1991240 50029206450100 NA Sealed NA 15-14A 2042220 50029206820100 NA Sealed NA 15-15C 2081820 50029206910300 NA Sealed NA 15-16A 2011920 50029211150100 NA 0.3 NA 3.4 11 /7/2009 15-17 1840890 50029211260000 NA 14.7 NA 132.6 12/4/2009 15-18A 2080830 50029222740100 NA 0.4 NA 1.7 11/11/2009 15-19A 1990990 50029218290100 NA surface NA 15-ZOC 2050930 50029211330300 NA 17 NA 120.7 12/2/2009 15-21A 1990290 50029205030100 NA Sealed NA 15-22 1800970 50029205090000 NA Sealed NA 15-23A 2031110 50029222250100 NA 0.7 NA 3.4 10/7/2009 15-24 1911280 50029222230000 NA 1.3 NA 10.2 10/7/2009 15-256 2080240 50029218420200 NA 0.8 NA 6.8 11/12/2009 15-266 2041590 50029222350200 NA 0.3 NA 1.7 10/8/2009 15-27 1920060 50029222430000 NA 0.3 NA 1.7 10/8/2009 15-28A 2031240 50029222470100 NA 0.5 NA 8.5 11/9/2009 15-298 2090380 50029222590200 NA 0.1 NA 1.7 11/10/2009 15-30A 2020890 50029222820100 NA 0.8 NA 5.1 11/11/2009 15-318 2050860 50029222850200 NA 1.2 NA 3.4 11(11/2009 15-32A 2011840 50029224620100 NA 1.5 NA 10.2 10/7(2009 15-336 2031940 50029224480200 NA 1.6 NA 10.2 11/29/2009 15-34A 2001370 50029224740100 NA 1.4 NA 8.5 11/10/2009 15-35 1940880 50029224880000 NA 1.8 NA 15.3 11/10/2009 15-366 2060730 50029224800200 NA 1 NA 5.1 11/10/2009 15-376 2040190 50029224850200 NA 1.3 NA 10.2 11/9/2009 15-38A 2030160 50029224960100 NA Sealed NA 15-39A 2060860 50029225030100 NA 0.3 NA 1.7 11/9/2009 15-40A 1980980 50029225110100 NA 1 NA 5.1 11/9/2009 15-416 2011460 50029224920200 NA 1.2 NA 6.8 1119/2009 15-426 2090730 50029226240200 NA 1.5 NA 11.9 11/11/2009 15-44 1961100 50029226830000 NA 3.5 NA 30.6 12/17!2009 15-458 2071790 50029226710200 NA 1.7 NA 11.9 11/8/2009 15-46 2041030 50029226650000 NA 1.9 NA 17.0 11/9/2009 15-47 1951740 50029226170000 NA 1.5 NA 10.2 10/9/2009 15-488 2051660 50029226350200 NA 1.2 NA 10.2 10/8/2009 15-496 2090640 50029226510200 NA 7.3 NA 51.0 11/8/2009 r ` ~~',~~ DATA SUBMITTAL COMPLIANCE REPORT 10/25/2007 Permit to Drill 2050930 Well Name/No. PRUDHOE BAY UNIT 15-20C Operator BP EXPLORATION (ALASKA) INC API No. 50-029-21133-03-00 MD 11580 TVD 8804 Completion Date 8/1/2005 Completion Status 1-OIL Current Status 1-OIL UIC N REQUIRED INFORMATION Mud Log No Samples No Directional Survey Yes DATA INFORMATION Types Electric or Other Logs Run: MWD / GR / EWR, MGR /CCL /CNL Well Log Information: Log/ Electr Data Digital Dataset Type Med/Frmt Number Name (data taken from Logs Portion of Master Well Data Maint Log Log Run Interval OH / Scale Media No Start Stop CH Received Comments YED D Asc Directional Survey ~D D Lis 13328 ''Gamma Ray I'EQ C Lis 13571' Gamma Ray ~1og 13960 Neutron ~D C Pds 13960 `Neutron Well Cores/Samples Information: Name ADDITIONAL INFORMATION Well Cored? Y Chips Received? ._~C-L#~ Analysis `4`'t1Q~ Received? Comments: Compliance Reviewed By: 8416 11580 Open 9/26/2005 IIFR 8365 11542 Open 10/26/2005 GR ROP 8454 11580 Open 2/22/2006 ROP DGR plus Graphics 2 Blu 1 8050 11550 6/23/2006 CNL, Mem Lee, GR, CCL, CNL, Carrier 12-Aug-2005 2 Blu 1 8050 11550 6/23/2006 CNL, Mem Lee, GR, CCL, CNL, Carrier 12-Aug-2005 Sample Interval Set Start Stop Sent Received Number Comments )~ Daily History Received? ~" N Formation Tops Y`/ N Date: ~~~ 3ehturo~erger ,; ,,, ^ ~ ,'00~ Alaska Data 8 Consulting Services 2525 Gambell Street, Suite 400 a' ' :, ci"i ° ~" r uL'tP~ISSiCtI Anchorage, AK 99503-2838 ,~PC~~Q ATTN: Beth wpu i~r, ~ 0~3 a p5 3~ ~ ~ ~ nn nncr~i Minn NO. 3854 Company: State of Alaska Alaska Oit 8 Gas Cons Comm Attn: Christine Mahnken 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay n~rs ci r•..~... rn 06/20/06 07-18 9153238 LDL 01/31/03 1 C-04A 10649975 SBHP SURVEY 06/26/03 1 N-11C 10980595 PRODUCTION PROFILE 08/09/05 1 MPF-89 11084328 SCMT 11/24/05 1 D-10 10913021 MULTI-FINGER CALIPER 06!02/OS 1 NGI-09 11212860 USIT 05/23/06 1 MPH-09 11211412 USIT 05/28/06 1 MPH-15 11076486 CH EDIT PDC-GR OF USIT 12/15/05 Prints sent earlier 1 MPS-90 11162721 CH EDIT PDC-GR OF USIT 11/27/05 Prints sent earlier 1 AGI-07A 11212865 CH EDIT PDC-GR OF USIT 05/28/06 1 1 15-20C 11075906 MCNL 08/12/05 1 1 18-30 11209593 MCNL 03!25106 1 1 Petrotechnical Data Center LR2-1 /~ 900 E. Benson Blvd. 1/`.Il Anchorage, Alaska 99508 Alaska uata a consumng Services 2525 Gambell Street, Suite 400 Anchorage, AK 99503-2838 ATTN: Beth C] -a • • WELL LOG TRANSMITTAL ~~~~~ _ CSI ~~ ~.~ ~ 7 J To: State of Alaska February 16, 2006 Alaska Oil and Gas Conservation Comm. Attn.: Librarian 333 West 7t~' Ave., Suite 100 Anchorage, Alaska 99501 RE: MWD Formation Evaluation Logs 15-20C, The technical data listed below is being submitted herewith. Please address any problems car concerns to the attention of: Rob Kalish, Sperry Drilling Services, 6900 Arctic Blvd., Anchorage, AK 99518 907-273-3500 15-20C: LAS Data & Digital Log Images: 1 CD Rom 50-029-21133-03 ~!'~ C~~ ~ ~~~ ~~~~~ • WELL LOG TRANSNIITTAL To: State of Alaska Alaska Oil and Gas Conservation Comm. Attn.: Helen Warman 333 West 7~' Avenue, Suite 100 Anchorage, Alaska 99501 RE: MWD Formation Evaluation Logs: 15-20C, October 4, 2005 AK-MW-3863474 1 LDWG formatted Disc with verification listing. 1 3 3 ~8 API#: 50-029-21133-03 PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING A COPY OF THE TRANSMITTAL LETTER TO THE ATTENTION OF: Sperry Drilling Services BP Exploration (Alaska) Inc. Attn: Rob Kalish Petro-Technical Data Center LR2-1 6900 Arctic Blvd. 900 E. Benson Blvd. Anchorage, Alaska 99518 Anchorage, Alaska 99508 Date: ~7 U ~~ ~ Signed: ~;~ s'-- ~ X13 • • 22-Sep-05 AOGCC Helen Warman 333 W. 7th Ave. Suite 100 Anchorage, AK 99501 DEFINITIVE Re: Distribution of Survey Data for Well 15-20C Dear Dear Sir/Madam: Enclosed is one disk with the *.PTT and *.PDF files. Tie-on Survey: $,416.40' MD Window /Kickoff Survey: 8,436.00' MD (if applicable) Projected Survey: 11,580.00' MD PLEASE ACKNOWLEDGE RECEIPT BY SENDING AN EMAIL TO CARL.ULRICH@HALLIBURTON.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 ~ ~ ~~ Signed _ Please call me at 273-3545 if you have any questions or concerns. Regards, Carl Ulrich Survey Manager Attachment(s) ~~s -0~3 STATE OF ALASKA ALASKA~L AND GAS CONSERVATION COMfVi~SION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1a. Well Status: ®Oil ^ Gas ^ Plugged ^ Abandoned ^ Suspended ^ WAG 1b. Well Class: 20AAC 25.105 20AAC 25.110 ® Development ^ Exploratory ^ GINJ ^ WINJ ^ WDSPL No. of Completions One Other ^ Stratigraphic ^ Service 2. Operator Name: 5. Date Comp., Susp., or Aband. 12. Permit to grill Number BP Exploration (Alaska) Inc. 8/14/2005 ~ 205-093 3. Address: 6. Date Spudded 13. API Number P.O. Box 196612, Anchorage, Alaska 99519-6612 8/2/2005 50-029-21133-03-00 4a. Location of Well (Governmental Section): 7. Date T.D. Reached 14. Well Name and Number: Surface: 1 ' F ' 8/10/2005 PBU 15-20C 408 NL, 3946 FEL, SEC. 22, T11 N, R14E, UM Top of Productive Horizon: g. KB Elevation (ft): 15. Field /Pool(s): 1125' FNL 4040' FEL SEC T11 N R14E 22 UM 57.83 Prudhoe Bay Field / Prudhoe Bay , , . , , , PSI Total Depth: 9. Plug Back Depth (MD+TVD) 1022' FSL, 4751' FEL, SEC. 15, T11 N, R14E, UM 11532 + 8798 Ft 4b. Location of Well (State Base Plane Coordinates): 10. Total Depth (MD+TVD) 16. Property Designation: Surface: x- 677267 - y- 5960103' Zone- ASP4 / 11580 + 8804 ~ Ft ADL 028306 TPI: x- 677169 y- 5960385 Zone- ASP4 11. Depth where SSSV set 17. Land Use Permit: _ Total Depth: x- 676404 Y- 5962515 -Zone- ASP4 (Nipple) 2209' MD 19. Water depth, if offshore 20. Thickness of Permafrost 18. Directional Survey ®Yes ^ No N/A MSL 1900' (Approx.) 21. Logs Run: ~~.-~~I~acu ~3`f~, i?~D~ ~'39~!'.zyy13 MW D / GR / EW R, MGR / CCL / CNL ,„~ ~j 9- zv , ~ 2. ASING, LINER AND CEMENTING RECORD CASING ETTING EPTN MD` ETTING EPTH TVD HOLE AMOUNT $IZE WT. PER FT. GRADE OP OTTOM OP BOTTOM $IZE CEMENTING RECORD PULLED 20" 91.5# H-40 Surface 112' Surface 112' 30" 2000# Poleset 13-3/8" 72# L-80 Surface 2532' Surface 2532' 17-1/2" 1750 sx PF 'E', 400 sx PF 'C' 9-5/8" 47# L-80 Surface 7727' Surface 5993' 12-1 /4" 500 sx Class 'G', 276 sx PF 'C' 7" 26# L-80 7558' 8275' 5909' 6266' 8-1/2" 182 sx Class 'G' 4-1/2" 12.6# L-80 8120' 8436' 6188' 8394' 6-1/8" 54 sx Class 'G' 3-1/2" x 3-3/16° x 2-~~s° asla ~ s.2u ~ s.1sa L-80 8355' 11567 8325' 8802' a-va° X a-a~a• 204 sx Class 'G' 23. Perforations open to Production (MD +TV D of Top and ' " 24. TUBING RECORD Bottom Interval, Size and Number; if none, state none ): SIZE DEPTH SET (MD) PACKER SET (MD) 2" Gun Diameter, 6 spf 2" Gun Diameter, 6 spf 4-1/2", 12.6#, L-80 8121' 8064' MD TVD MD TVD ' 9480' - 9500' 8855' - 8854' 10650' - 10870' 8820' - 8806' ' ' ' ETC. 25. ACID FRACTURE CEMENT SQUEEZE 9560 - 9590 8852' - 8850 10920' - 11090' 8803' - 8812' , , , 9760' - 9950' 8847' - 8842' 11180' - 11230' 8809' - 8807' 10160' 10190' 8843' 8841' 11330' 11370' 8801' 8801' DEPTH INTERVAL MD AMOUNT & KIND OF MATERIAL USED - - - - ;10290' - 10320' 8836' - 8834' 11450' - 11480' 8797' - 8795' 2500' Freeze Protected with McOH / KCL 10390' - 10420' 8830' - 8829' 26• PRODUCTION TEST Date First Production: Method of Operation (Flowing, Gas Lift, etc.): August 19, 2005 Flowing Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE $IZE GAS-OIL RATIO TEST PERIOD Flow Tubing Casing Pressure CALCULATED E OIL-BBL GAS-MCF WATER-BBL OIL GRAVITY-API (CORK) PreSS. 24-HOUR RAT 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). ~,.,.-_..-," r._._ P Submit core chips; if none, state "none". COPS",~i ~'s i011 . ~F~ ~I;~ ~ ~ 2~~5 -, None ~" ~'• Form 10-407 Revised 12/2003 CONTINUED ON REVERSE SIDE ~,,,~ 4 `t ~ ~--t ~ ~L /~~ I-.. ~ ~ 28. GEOLOGIC MARKERS 29' FORMATION TESTS Include and briefly summarize test results. List intervals tested, NAME MD TVD and attach detailed supporting data as necessary. If no tests were conducted, state "None". Sadlerochit 8389' 8355' None Top CGL 8574' 8519' Base CGL 8631' 8573' 21 TS /Zone 2A 8894' 8732' Zone 1 B 9092' 8766' TDF /Zone 1A 9222' 8810' Base Sadlerochit 9394' 8853' 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 I Title Technical Assistant Date -~ PBU 15-20C 205-093 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No. / A royal NO. Drilling Engineer: Josh Chebul, 564-5220 INSTRUCTIONS GENerzAL: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. IrEM 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. IreM 4b: TPI (Top of Producing Interval). IreM 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. IreM 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). IreM 20: True vertical thickness. IreM 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. IreM 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). IreM 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, or Other (explain). IreM 27: If no cores taken, indicate "None". IreM 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 Submit Original Only BP 'EXPLORATION Page 1 of 11 Operations Summary Report Legal Well Name: 15-20 Common Well Name: 15-20 Spud Date: 8/1/1984 Event Name: REENTER+COMPLETE Start: 7/31/2005 End: Contractor Name: NORDIC CALIS TA Rig Release: Rig Name: NORDIC 1 Rig Number: N1 Date From - To ~ Hours Task ~ Code ~ NPT Phase Description of Operations 7/31/2005 _- -i 17:00 - 18:00 ~ _ 1.00 MOB . ~ P PRE Rig released from summer maintence on DS 15 ~ 05:OOHrs 18:30 - 18:30 24.00 MOB P PRE 18:30 - 19:00 0.50 MOB P PRE 19:00 - 22:00 3.001 MOB N WAIT PRE 22:00 - 00:00 8/1/2005 00:00 - 03:30 03:30 - 13:00 2.00 RIGU P 3.50 RIGU P 9.50 BOPSU P PRE PRE PRE 13:00 - 15:30 2.50 BOPSU P 15:30 - 21:00 5.50 RIGU P 21:00 - 22:00 1.00 STWHIP N 22:00 - 22:15 0.25 STWHIP P 22:15 - 00:00 8/2/2005 00:00 - 00:15 00:15 - 00:45 00:45 - 01:15 01:15 - 07:30 1.75 STWHIP P 0.25 STWHIP P 0.50 STWHIP P 0.501 STWHIPI P 6.251 STWHIPI P PRE PRE RREP WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT WEXIT on 7/31/2005. Prep to move rig. Jack-up rig. Secure maintence location. Clean location & fold herculite. Held pre-move safety meeting with crew. Move rig to DS 15-20. Position rig in front of 15-20. Install dikes around tree & lay herculite in front of well. Confirm WHP of 0 psi on 15-20. Waiting on Veco Well Support to install working platform. Call was made at 0900 hrs by Jerry Middendorf to request platform. No return calls to TP, check with Veco at 1600 hrs and left message. Check at 1800 hrs, Veco had no clue about it. Veco told co. man 2000 hrs was absolute latest. Finally showed up on location at 2200 hrs. Supposedly searching for platform that had been on location the entire time. BP was charged $2,222 (3 hrs standby) for wait on Veco Wells Support. Rig accepted at 2200 hrs on 7/31/05. NU ROPE, RU around rig. RU and make ready CT equipment. General RU around rig. BOP testing: function and pressure per well plan. 250 psi/3500 psi for Combis, VBR, blind/shear, packoff. 250 psi/2500 psi for Hydril. Trouble getting to test due to misconfigured stack (at SLB shop). Trouble getting VBR to test due to unknown causes. BOPE test eventually good after work. SLB took 4 hrs of downtime on ROPE tests. Computer system work by SLB. Alarm system work by Nordic. Test hardline on inlet and outlet sides. Pump coil volume. Pull test CTC to 40K Ib. Pump dart. RIH. Generator failure. RIH. Hit obstruction at 227'. Worked through it, samples at shakers showed fibrous material, nut hulls, most likely LCM from previous wells' lost circulation problems. RIH. RIH. Mill 3.725" XN Nipple out to 3.80". Minimal gas back from swap over. Max wellhead pressure: 103 psi. RIH. Tag WS pinch point at 8431'. Paint EOP flag at 8346.3'. Mill window 8431' - 8437.6'. Printed: 8/15/2005 1:09:14 PM BP EXPLORATION Operations Summary Report Legal Well Name: 15-20 Common Well Name: 15-20 Event Name: REENTER+COMPLETE Contractor Name: NORDIC CALISTA Rig Name: NORDIC 1 Date ~ From - To Hours ~ Task I Code NPT 8/2/2005 ~ 01:15 - 07:30 6.25 ESTWHIP~ P Start: 7/31 /2005 Rig Release: Rig Number: N1 I Page 2 of 11 Spud Date: 8/1/1984 End: Phase I Description of Operations WEXIT 07:30 - 08:30 1.00 STWHIP P WEXIT 08:30 - 10:30 2.00 STWHIP N WAIT WEXIT 10:30 - 11:30 1.00 STWHIP P WEXIT 11:30 - 13:45 2.25 STWHIP P WEXIT 13:45 - 14:30 0.75 STWHIP P WEXIT 14:30 - 17:00 I 2.501 DRILL I P I I PROD1 17:00 - 18:30 I 1.501 DRILL I P I I PROD1 18:30 - 19:10 0.67 DRILL P PROD1 19:10 - 19:30 0.33 DRILL P PROD1 19:30 - 20:00 0.50 DRILL N RREP PROD1 20:00 - 20:30 0.50 DRILL P PROD1 20:30 - 21:00 I 0.501 DRILL I P I I PROD1 21:00 - 22:00 1.00 DRILL P PRODi 22:00 - 22:15 0.25 DRILL P PROD1 22:15 - 23:00 0.75 DRILL P PRODi 23:00 - 00:00 1.00 DRILL P PRODi 8/3/2005 100:00 - 03:30 I 3.501 DRILL I P I I PROD1 03:30 - 05:30 2.001 DRILL ~ P PROD1 05:30 - 07:00 1.50 DRILL P PROD1 07:00 - 07:45 0.75 DRILL P PRODi 07:45 - 08:30 I 0.751 DRILL I P I I PROD1 08:30 - 08:45 I 0.251 DRILL I P I I PROD1 08:45 - 09:15 I 0.501 DRILL I P I I PROD1 09:15 - 11:35 I 2.331 DRILL I P I I PROD1 11:35 - 11:45 0.17 DRILL P PROD1 11:45 - 11:55 0.17 DRILL P PRODi 11:55 - 14:15 2.33 DRILL P PROD1 PU wt: 35.5K Ib, SO wt: 30.5K Ib. Differental pressure: 110 psi. Drill 10' rathole in formation. Work up and down through window 4 times to ensure clean window (1 dry run). Wait on vac trucks to haul mud from MI plant. Call put into central dispatch at 07:30 hrs. Swap well fluid from milling fluid to fresh new Flo-Pro mud. POOH with only 1 motor due to overheating generators. PJSM. UD window milling BHA#1 & inspect mills. Window mill gauge 3.78" go / 3.77" no-go. String mill gauge 3.79" go / 3.78" no-go. Wear on window mill face indicates center crossed the liner wall. PJSM. Behead & M/U DS CTC. Pull & pressure test. M/U build section BHA #2 with 2.83deg bend motor, MWD/GR & rebuilt Bit #2 [HYC DS100 3-3/4" x 4-1/4" bicenter]. RIH with BHA #2. SHT. Continue RIH. Meanwhile Cat Rep work on gen set #2, Correct CTD by -3.6' C~3 the flag. RIH to 8390 Log down GR & tie into Geology PDC log. Added 5' to CTD. Orient TF to LS. W.O. Cat Rep to fix Gen set #2. Test generator. Works- RIH. RIH w/ Build BHA to 8441'. Toolface in close orientation- Drill ahead Drill ahead from 8441' to 8480' . 0= 2.55, 3460 press (2950 free spin), 2000 WOB, 51'/hr. Attempt to orient assy to 160 RHS. Drill ahead from 8480' to 8493'. Re-attempt to orient BHA. Moved to 90 RHS Drill ahead and orient while drilling from 8493' to 8526'. 0=2.55, 3100 press, 2900 WOB, 32'/hr. Drill ahead from 8526' to 8577'. 0=2.55, 3100- 3300 press, 2800-4300 WOB, 15 - 30'/hr. Varying ROP's due to conglomerate formation. Altering WOB and press as needed. Attempt to orient build assy +/- 45 RHS. Work pipe through window and back to TD. Put wt. on assy and drill attempt to establish orientation while drilling. No go. No orientation and stalling problems. POOH. POOH w/ CT and BHA. OOH. S/B injector. P/U & UO bit & orienter. Bit gauge 2/3/1. Check motor with wrenches -seemed OK. PJSM. R/U hydraulic cutter & cut 200' of CT for fatigue management. Behead & M/U CTC. Pull test CTC to 35k & P/test to 3500psi OK. M/U build section BHA #3 with 2.83deg bend motor, MWD/GR & rebuilt Bit #3 [HC RWD2ST 3-3/4" x 4-1/8" bicenter]. RIH with build BHA#3. Orient TF to LS. Run clean thru window & continue RIH to btm tagged ~ 8580'. PUH to 8480' for GR tie-in log. Log up GR & tie-into RA PIP tag - 0' correction. Orient TF to 90R. Lost pump & TF roll over to LS. Reorient again -Getting intermittent 10deg clicks. Finally mange to Printed: 8/15/2005 1:09:14 PM BP EXPLORATION Operations Summary Report Page 3 of 11 Legal Well Name: 15-20 Common Well Name: 15-20 Spud Date: 8/1/1984 Event Name: REENTER+COMPLETE Start: 7/31/2005 End: Contractor Name: NORDIC CALISTA Rig Release: Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours ~I Task I Code' NPT Phase Description of Operations ~~ 8/3/2005 11:55 - 14:15 2.33 DRILL P PROD1 orient to 60R. Wt up = 31 k. Wt down = 26k. Freespin = 2.6bpm/2900psi. IAP = 50psi, OAP = 680psi. PVT = 277bb1s. 14:15 - 16:45 2.50 DRILL P PROD1 Begin drilling with 55R TF, 2.6/2.6bpm, 2900/3050psi. Getting frequent motor stalls with +/-200psi motor work. Continue grinding patiently to 8595'. Finally decide to POOH to check motor & bit. 16:45 - 18:30 1.75 DRILL P PROD1 POOH drilling BHA#3. 18:30 - 20:30 2.00 DRILL P PROD1 LD BHA #3. Bit junked- 4/4/ Ring Out with Broken Teeth. Shoulder teeth on pilot concentrically ringed out. Confer with office, rig personell. Decision made to run back in hole with new drilling BHA. 20:30 - 21:00 0.50 DRILL P PRODi PU new bit, same angle motor (BHA #4). Venturi basket, mule shoe, motor on standby. 21:00 - 22:30 1.50 DRILL P PROD1 RIH w/ CT and BHA. Conduct Pulse test at 900'. Working. 22:30 - 23:00 0.50 DRILL P PRODi Stop above window (8420') and attempt to orient to 60R- get 135L. 23:00 - 23:15 0.25 DRILL P PRODi RIH to 8595'. Feather bit on bottom several times to wash cutter debris around bit. Free spin 3150 psi. Orient to 60R. Begin drilling. 23:15 - 00:00 0.75 DRILL P PROD1 Drill from 8595' to 861.0' . 0=2.63, 3300 press, 3100 WOB, 20'/hr. 8/4/2005 00:00 - 00:30 0.50 DRILL P PRODi Orient one click- TF at 70R 00:30 - 01:30 1.00 DRILL P PROD1 Drill ahead from 8616' to 8641'. 0= 2.6, 3100 press, 2500 WOB. 01:30 - 01:45 0.25 DRILL P PROD1 Orient to 90R. 01:45 -04:15 2.50 DRILL P PROD1 Drill ahead from 8641' to 8697'. 0= 2.6, 3200 press, 4500 WOB. Orient as needed (attempting to maintain 90R TF) 04:15 - 05:15 1.00 DRILL P PROD1 Orient TF to 90R. 05:15 - 06:05 0.83 DRILL P PRODi Drill ahead from 8697' to 8718' with 80R TF 2.55/2.55bpm, 3030/3125psi, 3k WOB & 20fph ave ROP. 06:05 - 06:20 0.25 DRILL P PRODi Drill to 8721' with 80R TF, 2.55/2.55bpm, 3030/3125psi, 2.5k WOB & 15fph ave ROP. 06:20 - 06:30 0.17 DRILL P PROD1 Short 100' wiper. Up wt = 30k. Down wt = 24k. IAP = 140psi. OAP = 160psi. Fresspin = 2.55bpm/3030psi. 06:30 - 07:05 0.58 DRILL P PRODi Drill to 8736' with 85R TF, 2.55/2.55bpm, 3000/3250psi, 2.5k WOB & 25fph ave ROP. 07:05 - 08:15 1.17 DRILL P PRODi Orient on btm -not getting clicks. PUH to 8480' & oreint TF to 60L. RBIH. 08:15 - 08:25 0.17 DRILL P PROD1 Drill to 8743' with 10L TF, 2.6/2.6bpm, 3050/3350psi, 2.5k WOB & 45fph ave ROP. 08:25 - 08:55 0.50 DRILL P PROD1 Orient TF to 60L. 08:55 - 09:05 0.17 DRILL P PROD1 Drill to 8745' with 105E TF, 2.6/2.6bpm, 3050/3350psi, 3k WOB & 20fph ave ROP. 09:05 - 09:25 0.33 DRILL P PROD1 PUH & orient 2 clicks to 60L. 09:25 - 10:05 0.67 DRILL P PRODi Drill to 8763' with 65-70L TF, 2.55/2.55bpm, 3000/3350psi, 2k WOB & 35fph ave ROP. 10:05 - 10:30 0.42 DRILL P PROD1 Orient TF to 20L. 10:30 - 12:45 2.25 DRILL P PROD1 Drill to 8847' with 20-30L TF, 2.6/2.6bpm, 3000/3300psi, 3k WOB & 40fph ave ROP. Conduct pit gain drill while drilling observed satisfactory response from both SLB & Nordic drillers. 12:45 - 13:10 0.42 DRILL P PROD1 Wiper to window & grab 1 click. 13:10 - 13:35 0.42 DRILL P PROD1 Drill to 8883' with 15L TF, 2.55/2.55bpm, 3000/3300psi, 2.5k Printed: 8/15/2005 1:09:14 PM BP EXPLORATION Operations Summary Report Page 4 of 11 Legal Well Name: 15-20 Common Well Name: 15-20 Spud Date: 8/1/1984 Event Name: REENTER+COMPLETE Start: 7/31/2005 End: Contractor Name: NORDIC CALISTA Rig Release: Rig Name: NORDIC 1 Rig Number: N1 Date From - To Hours ~ Task Code NPT ' Phase Description of Operations 8/4/2005 13:10 - 13:35 0.42 DRILL P PROD1 WOB & 85fph ave ROP. Finish 32+ DLS section. 13:35 - 15:15 1.67 DRILL P PROD1 POOH drilling BHA#4. Function test orienter above the window & got 3 for 3 clicks. Paint EOP flag C~3 8300'. 15:15 - 15:30 0.25 DRILL P PROD1 OOH. PJSM for C/O BHA. 15:30 - 16:15 0.75 DRILL P PROD1 S/B injector. Flush BHA. C/O MWD probe. Inspect orienter OK. P/U & UO bit -gauge 1/1/I with slight erosion on the pilot. Change bit & motor bend. 16:15 - 17:10 0.92 DRILL N SFAL PROD1 Work on BOPE indicatior lights in Ops cab & rig floor remote control panels. 17:10 - 17:35 0.42 DRILL P PRODi M/U drilling BHA #5 with 1.04deg bend motor, MWD/GR & rebuilt Bit #5 [HC RWD2ST 3-3/4" x 4-1/8" bicenterj. M/U injector. 17:35 - 19:00 1.42 DRILL P PROD1 RIH drilling BHA #5 to 8300'. 19:00 - 19:30 0.50 DRILL P PROD1 Orient TF to +/- 180 R to run through window. 19:30 - 20:00 0.50 DRILL P PROD1 RIH to 8488' and log up to 8470' to tie in. 0 correction. RIH to TD. 20:00 - 21:30 1.50 DRILL P PROD1 RIH to TD. Cannot orient TF to 90R. Work orienter. PU to window and try working tool again. Tool oriented. 21:30 - 22:30 1.00 DRILL P PROD1 Drill ahead from 8883' to 8900'. TF losing orientation. 22:30 - 00:00 1.50 DRILL P PRODi Orient TF to 90R. No go. Work pipe in hole, through window, off bottom. Problem with tool its self- dead and not reading. POOH. 8/5/2005 00:00 - 01:00 1.00 DRILL N DFAL PROD1 POOH w/ CT and BHA 01:00 - 02:00 1.00 DRILL N DFAL PROD1 LD BHA- inspect orientor- broken spring. Replace orientor and pulsor assy. 02:00 - 03:45 1.75 DRILL N DFAL PRODi RIH w/ CT and BHA #6 to 8000' and test BHA. working. Run to 8400' and orient. 03:45 -04:15 0.50 DRILL N DFAL PRODi Orient TF to 120R. 04:15 -04:30 0.25 DRILL N DFAL PROD1 RIH to 8900'. 04:30 - 06:00 1.50 DRILL P PROD1 Drill ahead from 8900' to 8990' . 0= 2.6, 3500 press (3050 FS}, 3000 WOB, 100'/hr. 06:00 - 07:45 1.75 DRILL P PRODi Drill to 9081' with 135R - 170E TF, 2.6/2.6bpm, 3050/3550psi, 4k WOB & 50fph ave ROP. Drilling ratty. 07:45 - 08:30 0.75 DRILL P PROD1 Wiper trip clean to window. RBIH to btm. Up wt = 31 k. Down wt = 23k. IAP = 250psi. OAP = 355psi. 08:30 - 08:45 0.25 DRILL P PROD1 Drill to 9100' with 165E TF, 2.6/2.6bpm, 3050/3400psi, 3k WOB & 80fph ave ROP. 08:45 - 09:00 0.25 DRILL P PRODi Orient TF to 90R. 09:00 - 09:50 0.83 DRILL P PROD1 Drill to 9144' with 85R TF, 2.6/2.6bpm, 2900/3300psi, 3k WOB & 50fph ave ROP. Drilling ratty. 09:50 - 10:00 0.17 DRILL P PRODi Short 100' wiper. 10:00 - 10:30 0.50 DRILL P PRODi Drill to 9177' with 100R TF, 2.6/2.6bpm, 3050/3400psi, 4k WOB & 55fph ave ROP. 10:30 - 10:45 0.25 DRILL P PROD1 Orient TF to 90L. 10:45 - 12:35 1.83 DRILL P PROD1 Drill to 9250' with 80L TF, 2.6/2.6bpm, 3050/3500psi, 4k WOB & 55fph ave ROP. 12:35 - 13:30 0.92 DRILL P PROD1 Wiper trip clean to window. RBIH to btm. 13:30 - 16:30 3.00 DRILL P PROD1 Drill to 9300' with 70L TF, 2.6/2.6bpm, 3050/3500psi, 4k WOB & 55fph ave ROP. 16:30 - 18:00 1.50 DRILL P PROD1 Drill to 9400' with 10-35L TF, 2.6/2.6bpm, 3050/3500psi, 4k WOB & 50fph ave ROP. 18:00 - 18:30 0.50 DRILL P PROD1 Conduct wiper trip to window 18:30 - 19:45 1.25 DRILL P PROD1 Tie in to well. +3' Correction. RIH to TD. Printed: 8/15/2005 1:09:14 PM BP EXPLORATION Operations Summary Report Page 5 of 11 Legal Well Name: 15-20 Common Well Name: 15-20 Spud Date: 8/1/1984 Event Name: REENTER+COMPLETE Start: 7/3112005 End: Contractor Name: NORDIC CALISTA Rig Release: Rig Name: NORDIC 1 Rig Number: N1 i ~ Date From - To Hours Task Code NPT ~I Phase Description of Operations 8/5/2005 19:45 - 22:00 2.25 DRILL P PROD1 Orient TF to 0, Drill ahead from 9400' to 9464'. 0=2.6, 3800 press (3100 FS), 5800 WOB, 38'/hr. Clipped Kavik at 9464'. Adjust TF and start lateral section. 22:00 - 00:00 2.00 DRILL P PROD1 Start drilling lateral section. Drill ahead from 9464' to 9525'. 0= 2.5, 4000 press, 12K WOB, 30'/hr. Meanwhile swap well to new 8.6ppg flopro mud with 14ppb K-G & 3% L-T. 8/6/2005 00:00 - 02:00 2.00 DRILL P PROD1 Drill ahead from 9525' to 9600'. 0=2.5, 3500/3700 press, 5500/7000 WOB, 80-100'/hr 02:00 - 03:15 1.25 DRILL P PROD1 Conduct wiper trip to window. 03:15 - 06:15 3.00 DRILL P PROD1 Orient TF to 90L. Drill ahead from 9600' to 9714'. 0=2.5-2.6, 3300-3500 press, 5600-7000 WOB, 80'/hr. Orient while drilling as needed. Geo wants to build to 92-93degs incl to hunt for sand. 06:15 - 06:45 0.50 DRILL P PROD1 Drill to 9730' with 40-50L TF, 2.6/2.6bpm, 3000/3350psi, 9k WOB & 55fph ave ROP. 06:45 - 07:00 0.25 DRILL P PROD1 Orient TF around to 90L. 07:00 - 07:10 0.17 DRILL P PROD1 Drill to 9735' with 100-120L TF, 2.6/2.6bpm, 3100/3500psi, 10k WOB & 35fph ave ROP. 07:10 - 07:30 0.33 DRILL P PRODi Drill to 9746' with 95-105L TF, 2.5/2.5bpm, 3100/3500psi, 10k WOB & 30fph ave ROP. 07:30 - 09:00 1.50 DRILL P PROD1 Wiper trip to window. Had 10k O/pull C~ 9550' shale. RBIH to btm. Up wt = 32k. Down wt = 22k. IAP = 300psi. OAP = 400psi. 09:00 - 09:10 0.17 DRILL P PROD1 Drill to 9749' with 100-105L TF, 2.5/2.5bpm, 3000/3350psi, 4k WOB & 20fph ave ROP. 09:10 - 09:40 0.50 DRILL P PRODi Drill to 9781' with 85L TF, 2.5/2.5bpm, 3000/3350psi, 5k WOB & 60fph ave ROP. Geo wants to level to 90/89degs incl in sand. 09:40 - 10:00 0.33 DRILL P PROD1 Orient TF around to 120L. 10:00 - 10:50 0.83 DRILL P PROD1 Drill to 9851' with 125-140L TF, 2.5/2.5bpm, 3000/3350psi, 5k WOB & 85fph ave ROP. 10:50 - 11:00 0.17 DRILL P PRODi Orient 2 clicks & drill to 9856' with 100-110L TF, 2.5/2.5bpm, 3000/3350psi, 5k WOB & 40fph ave ROP. 11:00 - 11:20 0.33 DRILL P PROD1 Orient 1 click & drill to 9883' with 90L TF, 2.5/2.5bpm, 3000f3350psi, 5k WOB & 80fph ave ROP. 11:20 - 11:35 0.25 DRILL P PRODi Orient TF around to 130L. 11:35 - 11:50 0.25 DRILL P PRODi Drill to 9900' with 150E TF, 2.5/2.5bpm, 3000/3350psi, 5k WOB & 85fph ave ROP. 11:50 - 12:35 0.75 DRILL P PRODi Wiper trip clean to window. 12:35 - 12:50 0.25 DRILL P PROD1 Log up GR & tie-into RA pip tag. Add 3' to CTD. 12:50 - 13:30 0.67 DRILL P PROD1 RBIH to btm. 13:30 - 13:50 0.00 DRILL P PROD1 Drill to 9940' with 150E TF, 2.5/2.5bpm, 3000/3400psi, 3k WOB & 85fph ave ROP. 13:50 - 15:10 1.33 DRILL P PROD1 Orient & drill to 10000' with 100E TF, 2.6/2.6bpm, 3100/3500psi, 8k WOB & 65fph ave ROP. 15:10 - 15:25 0.25 DRILL P PROD1 Orient & drill to 10010' with 70L TF, 2.6/2.6bpm, 3200/3600psi, 8k WOB & 75fph ave ROP. 15:25 - 15:35 0.17 DRILL P PROD1 Orient TF around to 90R. 15:35 - 16:10 0.58 DRILL P PROD1 Drill to 10052' with 80R TF, 2.5/2.5bpm, 3250/3600psi, 7k WOB & 85fph ave ROP. 16:10 - 17:35 1.42 DRILL P PROD1 Wiper trip clean to window. RBIH to btm. 17:35 - 18:15 0.67 DRILL P PROD1 Drill to 10110' with 90R TF, 2.5/2.5bpm, 3200/3600psi, 3k WOB & 95fph ave ROP. 18:15 - 18:30 0.25 DRILL P PROD1 Orient TF to 30R Printed: 8/15/2005 1:09:14 PM BP EXPLORATION Operations Summary Report Legal Well Name: 15-20 Common Well Name: 15-20 Event Name: REENTER+COMPLETE Contractor Name: NORDIC CALISTA Rig Name: NORDIC 1 ~ ~~ Date !From - To ~~, Hours ' Task '~ Code { NPT 8/6/2005 18:30 - 19:15 I 0.75 r 1 DRILL P 19:15 - 19:30 0.25 DRILL P 19:30 - 20:30 1.00 DRILL P 20:30 - 22:30 2.00 DRILL P 22:30 - 00:00 1.50 DRILL P 8/7/2005 ~ 00:00 - 01:15 ~ 1.25 ~ DRILL ~ P 01:15 - 04:30 ~ 3.25 ~ DRILL ~ P 04:30 - 05:00 0.50 DRILL P 05:00 - 06:00 1.00 DRILL P 06:00 - 06:15 0.25 DRILL P 06:15 - 07:00 0.75 DRILL P 07:00 - 08:45 I 1.751 DRILL I P 08:45 - 10:50 ~ 2.08 ~ DRILL ~ P 10:50 - 11:50 I 1.001 DRILL I P 11:50 - 11:55 0.08 DRILL P 11:55 - 12:50 0.92 DRILL P 12:50 - 13:30 0.67 DRILL P 13:30 - 14:30 1.00 DRILL P Page 6 of 11 Spud Date: 8/1/1984 Start: 7/31/2005 End: Rig Release: Rig Number: N1 Phase ~ Description of Operations PROD1 Drill ahead from 10110' to 10134'. 0= 2.55, 3700 press, 7400 WOB, 120'/hr PROD1 Orient TF #0 60R PROD1 Drill ahead from 10134' to 10200'. 0=2.5, 3300 press, 6200 WOB, 55'/hr PROD1 Wiper trip to window. PROD1 Drill ahead from 10200' to 10295'. 0= 2.5, 3200 press, 9000 WOB, 50'/hr PROD1 Drill ahead from 10295' to 10350'. 0=2.5, 3200 press, 7500 WOB, 60'/hr PROD1 Wiper trip to window. +3' correction. While RBIH, counters shut down. PU to 8480' and relog. +29' correction. PROD1 Orient TF to 90L PROD1 Drill ahead from 10350' to 10420'. 0=2.5, 3600 press, 8900 WOB, 91'/hr PRODi Orient TF to 90R. PROD1 Drill ahead from 10420' to 10450' with 75-90R TF, 2.55/2.55bpm, 3250/3700psi, 9k WOB & 30fph ave ROP. Meanwhile bleed IAP from 680psi & OAP from 760psi to Opsi. PROD1 Drill to 10500' with 70-80R TF, 2.55/2.55bpm, 3250/3700psi, 9k WOB & 30fph ave ROP. Meanwhile swap well to new 8.6ppg flopro mud with 14ppb K-G & 3% L-T. PROD1 Wiper trip clean to window. RBIH to btm. Up wt = 32k. Down wt = 20k. IAP = Opsi. OAP = Opsi. PVT = 290bb1s. PROD1 Drill ahead to 10553' with 90-115R TF, 2.55/2.55bpm, 3100/3450psi, 11k WOB & 60fph ave ROP. Pull 10k heavy. PROD1 Wipe up hole to 10500'. RBIH to btm. PROD1 Drill ahead to 10631' with 90-100R TF, 2.5/2.5bpm, 2900/3300psi, 11 k WOB & 75fph ave ROP. Geo wants to build to 92-93degs incl. PROD1 Observe MWD quit pulsing while orienting TF to SOR. Spud BHA & get MWD to start pulsing. Continue orienting &MWD die again. Work drill string & get back MWD pulses. Decide to wiper trip to window. PROD1 Wiper trip clean to window with MWD pulsing intermittently. MW D finally stops pulsing. 14:30 - 15:50 1.33 DRILL N DFAL PROD1 POOH for MWD. 15:50 - 16:30 0.67 DRILL N DFAL PROD1 OOH. PJSM. C/O cracked roller on injector. S/B injector. Inspect orienter -has broken spring. L/O orienter MWD, motor & bit -grade 3/2/1 with 2 plugged jets, slight balling & ring on the pilot. 16:30 - 16:45 0.25 BOPSU P PROD1 Conduct weekly BOP function test. 16:45 - 18:00 1.25 DRILL N DFAL PROD1 M/U drilling BHA #7 with new extreme 1.2deg bend motor, new MWD/GR, new orienter & used Bit #7 [HYC DSX304 3-3/4" x 4-1/4" bicenter]. Scribe tools & M/U injector. Inspect injector chains. 18:00 - 20:00 2.00 DRILL N DFAL PRODi RIH drilling BHA #7 to 2500'. SD to work on Injector. 20:00 - 22:30 2.50 DRILL N DFAL PRODi RIH to window and tie in. -4' correction. RIH to TD 22:30 - 23:15 0.75 DRILL P PROD1 Drill ahead from 10631' to 10662'. 0= 2.5, 3200 press, 9000 WOB, 65'/hr. 23:15 - 23:30 0.25 DRILL P PROD1 Orient TF to 50R 23:30 - 00:00 0.50 DRILL P PROD1 Drill ahead from 10662' to 10695'. 0= 2.6, 3400 press, 16K WOB, 68'/hr Printed: 8/15/2005 1:09:14 PM BP EXPLORATION Operations Summary Report Page 7 of 11 Legal Well Name: 15-20 Common Well Name: 15-20 Spud Date: 8/1/1984 Event Name: REENTER+COMPLETE Start: 7/31/2005 End: Contractor Name: NORDIC CALISTA Rig Release: Rig Name: NORDIC 1 Rig Number: N1 Date From - To ', Hours ' Task I Code NPT ~ Phase ', Description of Operations 8/8/2005 00:00 - 03:00 3.00 DRILL P PROD1 Drill from 10695' to 10800'.0= 2.55, 3300/3500 press, 9/14K WOB, 65/88'/hr 03:00 - 05:30 2.50 DRILL P PROD1 Conduct wiper trip to window. Tight spot 10585' while pulling through. Light tag up at 10690' going down. 05:30 - 05:45 0.25 DRILL P PROD1 Orient TF to 135E at 10750' 05:45 - 06:25 0.67 DRILL P PROD1 Drill ahead from 10800' to 10842' with 105E TF 0= 2.6/2.5, 3400/3600 press, 13/17K WOB, 90/60'/hr 06:25 - 06:45 0.33 DRILL P PROD1 Drill ahead to 10862' with 75L TF, 2.5/2.5bpm, 2875/3450psi, 12k WOB & 55fph ave ROP. 06:45 - 07:10 0.42 DRILL P PROD1 Orient TF around to 110L. Up wt = 33k. Down wt = 16k. IAP = 50psi. OAP = 10psi. PVT = 240bb1s. 07:10 - 09:55 2.75 DRILL P PROD1 Drill to 10915' with 105-115L TF, 2.5/2.5bpm, 2875/3450psi, 12k WOB & 25fph ave ROP. Geo wants to drill down to 8755ftssvd. 09:55 - 10:15 0.33 DRILL P PRODi Orient TF to LS. 10:15 - 11:05 0.83 DRILL P PROD1 Drill to 10932' with 105-170R TF, 2.5/2.5bpm, 3000/3350psi, 10k WOB & 20fph ave ROP. TF flopped to 100R. 11:05 - 11:40 0.58 DRILL P PROD1 Orient 2 clicks & drill to 10950' with 165R TF, 2.5/2.5bpm, 2950/3300psi, 10k WOB & 35fph ave ROP. Receive MOC for 11:40 - 14:20 2.67 DRILL P PRODi Wiper trip to window. Pull heavy @ 10450' shale. Observe MW D pulsing intermittently from 9100'. Troubleshoot MWD & got back pulses while RBIH. 14:20 - 14:50 0.50 DRILL P PRODi Drill to 10973' with 155R TF, 2.5/2.5bpm, 3000/3350psi, 3k WOB & 80fph ave ROP. 14:50 - 15:10 0.33 DRILL P PROD1 Orient TF to 90L. 15:10 - 16:00 0.83 DRILL P PROD1 Drill to 10978' with 90L TF, 2.5/2.Sbpm, 3000/3350psi, 5k WOB & SOfph ave ROP. TF flop to 35R. PUH 50' & TF flop back to 90L. 16:00 - 16:45 0.75 DRILL P PROD1 Orient TF to 140L. MWD pulsing intermittently & finally quit pulsing. 16:45 - 19:00 2.25 DRILL N DFAL PROD1 POOH for MWD. 19:00 - 20:30 1.50 DRILL N DFAL PROD1 LD and inspect BHA. 5/8" plug missing from orienter tube port- still in hole. C/O orienter, motor, pulsor assy, bit- 1/1 WT. PU BHA #8 with agitator. 20:30 - 22:00 1.50 DRILL N DFAL PROD1 RIH to 1200' and test agitator. Working. Continue RIH to bot 8480'. 22:00 - 22:15 0.25 DRILL N DFAL PROD1 Log up and tie in. -7.5' correction. 22:15 - 00:00 1.75 DRILL N DFAL PROD1 Finish RIH to 9100' and test MWD. No magnetic deflection from agitator. RIH to bottom. 8/9/2005 00:00 - 02:00 2.00 DRILL N DFAL PROD1 Attempt to Orient TF. No go. PU to window- no go. PU inside window- no go. Tool dead. POOH. 02:00 - 03:30 1.50 DRILL N DFAL PRODi POOH w/ CT and BHA 03:30 -04:00 0.50 DRILL N DFAL PRODi LD BHA #8- look at orienter. Inspection revealed no problems. C/O anyways. 04:00 - 05:30 1.50 DRILL N DFAL PROD1 RIH to 1500'. Test orienter by orienting by azimuth reading. 4 clicks- successful. RIH to 7000' and retest- works. 05:30 - 06:00 0.50 DRILL N DFAL PROD1 RIH to 8480'- log up and tie in. -8' correction. 06:00 - 07:00 1.00 DRILL N DFAL PRODi RIH to bottom tagged C~3 10997'. 07:00 - 07:15 0.25 DRILL P PROD1 Orient TF to 120L. Up wt = 36k. Down wt = 18k. IAP = 25psi. OAP = 5psi. PVT = 273bb1s. Freespin = 2.5bpm/3450psi. 300psi increase in freespin due to agitator. Will need to run a higher internal jet on the equalizer for subsequent runs. 07:15 - 07:30 0.25 DRILL P PROD1 Drill to 11015' with 130E TF, 2.5/2.5bpm, 3450/3800psi, 3k Printed: 8!15/2005 1:09:14 PM BP EXPLORATION Page 8 of 11 Operations Summary Report Legal Well Common W Event Nam Contractor Rig Name: Date j Name: 1 ell Name: 1 e: Name: From - To ' 5-20 5-20 REENTE NORDIC NORDIC Hours R+COM CALIST 1 ~ Task PLET A Code ~ 3 E PT - Start Rig Rig Phase Spud Date: 8/1/1984 : 7/31/2005 End: Release: Number: N1 Description of Operations 8/9/2005 07:15 - 07:30 0.25 DRILL P PROD1 WOB & 80fph ave ROP. Wt transfer seems to have improved tremendously with the agitator. 07:30 - 07:40 0.17 DRILL P PROD1 Orient 1 click & drill to 11029' with 115-120L TF, 2.5/2.5bpm, 3450/3800psi, 2k WOB & 60fph ave ROP. 07:40 - 07:50 0.17 DRILL P PROD1 Orient 1 click & drill to 11038' with 110E TF, 2.5/2.5bpm, 3450/3800psi, 2k WOB & 60fph ave ROP. 07:50 - 08:00 0.17 DRILL P PROD1 Orient 1 click & drill to 11042' with 90L TF, 2.5/2.5bpm, 3450/3800psi, 2k WOB & 30fph ave ROP. 08:00 - 08:10 0.17 DR1LL P PRODi Orient 1 click & drill to 11049' with 70L TF, 2.5/2.5bpm, 3450/3650psi, 2k WOB & 45fph ave ROP. 08:10 - 08:20 0.17 DRILL P PRODi Orient 1 click & drill to 11059' with 50L TF, 2.5/2.5bpm, 3450/3800psi, 2k WOB & 50fph ave ROP. 08:20 - 08:50 0.50 DRILL P PROD1 Orient 2 clicks & drill to 11075' with 10-5L TF, 2.5/2.5bpm, 3450/3800psi, 2k WOB & 60fph ave ROP. Got differentially stuck ~ 11075'. 08:50 - 09:05 0.25 DRILL N STUC PRODi S/D pumps & relax pipe for 15mins. RIH to -5k CT wt & pull free with 86k. 09:05 - 09:30 0.42 DRILL P PROD1 Wipe up hole clean to 10700'. RBIH to btm: 09:30 - 09:50 0.33 DRILL P PROD1 Orient TF around to 20L. 09:50 - 10:15 0.42 DRILL P PROD1 Drill to 11100' with 20L TF, 2.5/2.5bpm, 3450/3800psi, 2k WOB & 50fph ave ROP. 10:15 - 10:45 0.50 DRILL P PRODi Orient TF around to 90L. 10:45 - 11:15 0.50 DRILL P PROD1 Drill to 11116' with 85L TF, 2.5/2.5bpm, 3450/3900psi, 5k WOB & 100fph ave ROP. 11:15 - 11:30 0.25 DRILL P PROD1 Drill to 11134' with 85L TF, 2.5/2.5bpm, 3450/4000psi, 5k WOB & 100fph ave ROP. Observe drilling break from 11120'. 11:30 - 11:50 0.33 DRILL C PROD1 Orient TF around to 120L. 11:50 - 12:15 0.42 DRILL P PRODi Drill to 11170' with 95L TF, 2.5/2.5bpm, 3450/4000psi, 6k WOB & 120fph ave ROP. 12:15 - 15:30 3.25 DRILL P PRODi Wiper trip to window. Conducted mad pass from 10980' - 10935'. Log up and tie in at window. +3.5' correction. RIH to bot. 15:30 - 16:30 1.00 DRILL C PROD1 Drill ahead from 11170' to 11252'. 0=2.45, 3700/3900 press, 4500/7000 WOB, 128/150'/hr. Started mud swap. 16:30 - 16:45 0.25 DRILL C PROD1 Orient to 70R. Finished conducting mud swap. 16:45 - 18:00 1.25 DRILL C PROD1 Orienting and Drilling ahead from 11252' to . Q= 2.6/2.45, 3100/3400 press, 7W9.5K WOB, 120/65'/hr 18:00 - 22:30 4.50 DRILL C PRODi Wiper to window. RIH set down at 11335. Back ream ratty thru 11220. Over pull 20K at 11289'. RIH. OK. Made second pass backream to 11200. 38K up, 18K dn.Cleaned up OK. 22:30 - 23:15 0.75 DRILL C PROD1 Directionally drill2.49/2.47 bpm at 3040 psi FS = 2800psi . Drilled to 11393. UP to oriebntate shale ratty backrean to 11200'. 23:15 - 00:00 0.75 DRILL C PRODi Directionally drll to 11402.2.5/ 2/5 bpm C 3250 psi. ROP 80+,Surface wt 8k. 8/10/2005 00:00 - 01:30 1.50 DRILL C PRODi Directionally drill. to 11477. PU to orientate hole ratty 11350. 01:30 - 05:20 3.83 DRILL C PRODi Wiper to window. Set down at 11315. PU RIH. 05:20 - 07:00 1.67 DRILL C PROD1 Directionally drill to TD at 11565'.2.57 / 2.57 bpm, 3100/3300 press (FS= 3050 psi), ROP 108' Surface wt 5K. 07:00 - 13:00 6.00 DRILL C PRODi Conduct final wiper trip to window and clean hole. Tie in at 8480' and log up. +15' correction (places TD at 11580'). RIH to 11300' to 11350' and work pipe through sticky spots. 13:00 - 16:15 3.25 DRILL C PROD1 POOH laying in 35 bbl liner pill with beads (61b/bbl- 3 sks fine, Printed: 8/15/2005 1:09:14 PM BP EXPLORATfON Page 9 of 11 Operations Summary Report Legal Well Common W Event Nam Contractor Rig Name: Date ~ Name: 1 ell Name: 1 e: Name: From - To 5-20 5-20 REENTE NORDIC NORDIC Hours R+COM CALIST 1 Task PLET A Code E NPT ~, Start Rig Rig Phase :~ Spud Date: 8/1/1984 : 7/31/2005 End: Release: Number: N1 Description of Operations 8/10/2005 13:00 - 16:15 3.25 DRILL C PRODi 1 sk course). In rate- .35 bpm, out rate- .08 bpm. Flag pipe at 5134' and 8328'. 16:15 - 17:00 0.75 DRILL C PROD1 LD drilling BHA- twisted off 2 3/8" PACP X 2 3/8" REG XO at XO/ Motor Connection. 17:00 - 18:00 1.00 FISH N DFAL PROD1 Call town and figure best plan of action. Call out fishing tools. MW D data indicated a pressure loss 450psi at 6834'.' 18:00 - 19:00 1.00 FISH N DFAL PROD1 Wait on fishing tools. 19:00 - 20:00 1.00 FISH N DFAL PRODi MU fishing BHA 20:00 - 20:30 0.50 FISH N DFAL PROD1 MU new coil connector. Pull And Pressure test . 20:30 - 23:40 3.17 FISH N DFAL PROD1 RIH with fishing BHA#1. Seen bump in wt and prerssure at 9342' 75 degrees. Set down at 11049 and at 11054. Tag TD at 11579. Seen pressure increase from 1300 to 1720 psi. Set down wait 4 minutes. No indication of jarring. 23:40 - 00:00 0.33 FISH N PROD1 POH 8/11/2005 00:00 - 03:00 3.00 FISH N DFAL PROD1 POH with fishing assembly #1. No Fish. 03:00 -04:00 1.00 FISH N DFAL PROD1 LD fishing tools. No indication of having been over fish. 04:00 --09:00 5.00 CASE P RUNPRD PU liner 2-7/8' X 3-3/16" liner. 09:00 - 10:00 1.00 .CASE P RUNPRD MU 2 3/8" coil connector. Pull tested to 35K- held. Press. Tested 3600- held. 10:00 - 11:00 1.00 CASE P RUNPRD Pump dart- 55.5 bbls (Liner volume- 21.4 bbls) 11:00 - 16:30 5.50 CASE P RUNPRD RIH w/ CT and liner- 33K. Tag up at 11040'. PU wt. 53K. Continuously work and re-work pipe to bottom. Land liner at 11567'. 16:30 - 17:15 0.75 CASE P RUNPRD Place 5500 Ibs compression on liner. Drop 5/8" ball, circulate 45 bbls- sheared at 3600 psi. Sting in and out to check shear. 17:15 - 20:15 3.00 CASE P RUNPRD Circulate mud out of hole and swap with KCI. No immediate losses in circulation. 20:15 - 21:00 0.75 CEMT P RUNPRD RU cementers .PJSM. 21:00 - 21:10 0.17 CEMT P RUNPRD Batch up cement. Pump two bbIH2O. PT to 4032 psi. OK 21:10 - 22:20 1.17 CEMT P RUNPRD Pump Cemet -Zero MM at 15.8 ppg -Pump 42.6 bbl at 2.05 ! 1.96 bpm 1080 psi -Clear lines. Zero in MM. - Launch dart.with 800 psi. -Displace with bio 30bb1 2.77 bpm C~ 2200 psi -Zero out MM as cement turn corner -Slow pump to 2 bpm at 50 bbl displacement -Shear LW P with 3893 psi at 58 bbl 55.5 bbl theoritical - Bump plug at 78 bbl. Calculated 79.6. -Pressure to 2622 psi. Bleed off .Monitor for flow.Floats held. - Formation took .7bbl - un sting 22:20 - 23:45 1.42 CEMT P RUNPRD POH filling displacement 23:45 - 00:00 0.25 CEMT P RUNPRD LD liner running tools 8/12/2005 00:00 - 01:00 1.00 CEMT P RUNPRD Program logging tool and RU floor. 01:00 - 01:15 0.25 CEMT P RUNPRD PJSM for picking up logging tool and installing source. 01:15 - 01:30 0.25 CEMT P RUNPRD PU mill motor two joints and carrier for memory log. 01:30 - 05:30 4.00 CEMT P RUNPRD PU 1-1/4 CSH tubing. Drifting each joint as it is picked up. 05:30 - 07:30 2.00 CEMT P RUNPRD RIH to 7000'. 07:30 - 13:30 6.00 CEMT P RUNPRD Wait on Cmt. 13:30 - 16:30 3.00 EVAL P LOWERI RIH and cleanout while logging down. Start logging at 8050'. Log and clean down at 30 fpm. Tag at 10605 w/ no motor work. Printed: 8/15/2005 1:09:14 PM BP EXPLORATION Operations Summary Report Legal Well Name: 15-20 Common Well Name: 15-20 Event Name: REENTER+COMPLETE Contractor Name: NORDIC CALISTA Rig Name: NORDIC 1 Task Code 8/i 2/D2005 I i 3 30 - 16:30 (H o 3.00 (EVAL P Start: Rig Release: Rig Number: NPT Phase LOWERI 16:30 - 17:30 1.00 EVAL P LOWERI 17:30 - 18:30 1.00 EVAL P LOWERI 18:30 - 19:30 1.00 EVAL P LOWERI 19:30 - 21:30 2.00 EVAL P LOW ERi 21:30 - 21:45 0.25 EVAL P LOWERI 21:45 - 22:15 0.50 EVAL P LOWERI 22:15 - 23:30 1.25 EVAL P LOWERI 23:30 - 00:00 0.50 CEMT P RUNPRD 8/13/2005 00:00 - 01:00 1.00 CEMT P RUNPRD Oi:00 - 02:30 1.50 PERFO P LOWERI 02:30 - 02:45 0.25 PERFO P LOWERI 02:45 - 05:00 2.25 PERFO P LOW ER1 05:00 - 07:00 2.00 PERFO P LOWERI 07:00 - 07:30 0.50 PERFO P j . LOWERI 07:30 - 09:00 1.50 PERFO P LOW ER1 09:00 - 09:30 0.50 PERFO P LOWERI 09:30 - 14:30 5.00 PERFO P LOWERI 14:30 - 17:30 3.00 PERFO P LOWERI 17:30-18:30 1.00 PERFO N RREP LOWERi 18:30 - 20:30 2.00 PERFO N LOWERI 20:30 - 22:00 I 1.501 PERFOB N LOW ERi 22:00 - 23:30 1.50 PERFO N LOWERI 23:30 - 00:00 0.50 PERFO N LOW ER1 4/2005 00:00 - 00:45 0.75 PERFO P LOW ER1 00:45 - 01:00 0.25 PERFO P LOWERI 01:00 - 05:00 4.00 PERFO P LOWERI 05:00 - 06:30 1.50 PERFO P LOW ERi 06:30 - 07:00 0.50 PERFO P LOWERI 07:00 - 07:30 0.50 PERFO P LOWERI 07:30 - 10:00 2.50 PERFO P LOWERI 10:00 - 12:00 I 2.001 PERFOBI P I I LOWERI Page 10 of 11 Spud Date: 8/1/1984 7/31/2005 End: N1 Description of Operations Work pipe down- still no motor work. Work pipe and conduct 100' short trips as needed. Tag bottom at 11540'- CT meas. Circulate pert pill on bottom. Log out of hole- 60 fpm. POH to CSH. Stand back CSH . PJSM to lay down nuc tools. LD memory logging tools. PU nozzel and flush cement from stack. Test liner lap to 2100 psi. Bleed to 575 in 30 min .FAILED test. Liner lap test failed. Bleed off from 2100psi. to 575 psi in 30 min. Prep frool for perforating job. Load gfuns in pipe shed. PJSM for perforating operation. PU first gun run 510' gun and 342' blanks + 41 stands of CSH RIH w/ 1st pert gun to 10650' EOP. Drop 518" ba11. Pumping at 2.2/.75 bpm, Fire first guns: 10650-10870 1 0920-1 1 090 11180-11230 11330-1 i 370 11450-11480. Guns fired at 2800 psi.48 bbl of displacement. POOH w/ CT and Perfing BHA. Injector starting to rattle hard. Conduct safety meeting POOH Standing back CSH and LD perf guns. PU and RIH 2nd perf gun assy and 20 stands CSH. Slb making repairs to injector. RIH perforating assy #2 330' guns and 629' blanks. RIH to flag at 7000 EOP.Correction -2'. RIH to 10420. Pump 5 bbl pill. Drop 5/8" ball and chase with 5 bbl. Launch ball with 700psi. Displace ball to seat 1.3 bpm C~$770psi. slow to .7 bpm C~270psi after 40 bbl. Guns fired at 2100 psi. Bottom shot 10422. 9480 - 9500 9560 - 9590 9760 - 9950 10160-10190 " 10290-10320 10390-10420 " POH.to CSH. Standback 20 Stands CSH. and LD perforating guns Standback CSH. PJSM for LD 46 spent guns. LD spent guns and blanks Clear floor and pipe shed of perforating guns. Conduct safety meeting PU LTP BHA Connect coil. RIH w/ LTP at 72 fpm, .3 bpm to 8354'. Set down 10K and sting in. Sting out of liner and drop 5/8" ball, pump at 1.55 bpm. Slow pump to 027 bpm at 43 bbls pumped. Ball not rolling. At 60 bbls pumped, increase rate to 2 bpm. Ball rolling. Ball tagged bottom, pressure up to 2500 for 3 mins, PU and reseal- sit 2' Printed: 8/15/2005 1:09:14 PM Printed: 8/15/2005 1:09:14 PM BPXA North Slope Alaska BPXA 15-20C Job No. AKMW3863474, Surveyed: 10 August 2005 Survey Report 22 August, 2005 Your Ref.• API 500292113303 Surface Coordinates: 5960102.83 N, 677267.36E (70° 17' 47.4552" N, 148° 33' 52.0696" IM Grid Coordinate System: NAD27 Alaska State Planes, Zone 4 Kelly Bushing Elevation: 57.83ft above Mean Sea Level se~rry~-gun i • 5~ F! u 1 C E 5 Survey Ref.• svy4647 A Hailipu~ton Company BPXA Survey Report for 15-20C Your Ref.• API 500292113303 Job No. AKMW38ti3474, Surveyed: 10 August 2005 North Slope Alaska BPXA Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Dept h Depth Northings Easti ngs Northings Eastings Rate Section Comment (ft) (ft) (ft) (ft) (ft) (ft) (ft) (°I100ft) 8416 .40 34 .460 224 .880 8320. 52 8378 .35 49.09 S 35.12E 5960054.58 N 677303.63 E -53.91 Tie On Point 8425 .00 35 .820 224 .550 8327. 55 8385 .38 52.61 S 31 .64E 5960050.98 N 677300.23E 15. 967 -56.85 8436 .00 37 .560 224 .160 8336. 37 8394 .20 57.31 S 27.04E 5960046.17 N 677295.75E 15. 959 -60.79 Window Point 8485 .03 28 .400 204 .520 8377. 58 8435 .41 78.75 S 11 .72E 5960024.38 N 677280.93E 28. 513 -79.61 8520 .35 23 .730 224 .410 8409. 36 8467 .19 91.50 S 3.24E 5960011.44 N 677272.75E 27. 885 -90.90 8551 .17 14 .520 244 .920 8438. 48 8496 .31 97.58 S 4. 63 W 5960005.17 N 677265.04E 36. 571 -95.71 8581 .29 12 .220 273 .810 8467. 81 8525 .64 98.97 S 11. 24 W 5960003.62 N 677258.46E 23. 172 -96.07 8611 .89 20 .210 295 .780 8497. 19 8555 .02 96.45 S 19. 25 W 5960005.95 N 677250.39E 32. 491 -92.34 8644 .92 27 .510 319 .690 8527. 45 8585 .28 88.12 S 29. 36 W 5960014.04 N 677240.09E 36. 286 -82.56 8674 .92 31 .280 340 .580 8553. 65 8611 .48 75.46 S 36. 45 W 5960026.53 N 677232.70E 36. 220 -68.95 8705 .65 36 .740 355 .720 8579. 16 8636 .99 58.73 S 39. 80 W 5960043.18 N 677228.96E 32. 676 -51.90 8735 .30 41 .920 8 .730 8602. 13 8659 .96 40.05 S 38. 95 W 5960061.88 N 677229.36E 32. 768 -33.58 8765 .88 45 .350 356 .250 8624. 30 8682 .13 19.05 S 38. 11 W 5960082.89 N 677229.71E 30. 270 -12.96 8795 .00 55 .460 351 .330 8642. 84 8700 .67 3.21 N 40. 60 W 5960105.08 N 677226.69E 37. 061 9.42 8825 .58 66 .090 349 .740 8657. 75 8715 .58 29.49 N 45. 01 W 5960131.25 N 677221.67E 35. 055 36.06 8855 .98 75 .320 338 .490 8667. 82 8725 .65 56.98 N 52. 91 W 5960158.55 N 677213.12E 46. 236 64.44 8878 .74 82 .970 340 .080 8672. 10 8729 .93 77.87 N 60. 81 W 5960179.25 N 677204.73E 34. 304 86.30 8904 .58 85 .340 343 .590 8674. 73 8732 .56 102.29 N 68. 82 W 5960203.47 N 677196.15E 16. 331 111.66 8939 .33 84 .290 347 .640 8677. $7 8735 .70 135.81 N 77. 42 W 5960236.77 N 677186.76E 11. 994 146.10 8971 .57 83 .230 351 .150 8681. 38 8739 .21 167.30 N 83. 31 W 5960268.12 N 677180.12E 11. 311 178.13 8998 .29 80 .770 352 .380 8685. 10 8742 .93 193.49 N 87. 10 W 5960294.21 N 677175.72E 10. 273 204.59 9034 .94 77 .260 356 .950 8692. 08 8749 .91 229.29 N 90. 46 W 5960329.93 N 677171.52E 15. 540 240.48 9069 .28 72 .950 1 .352 8700. 91 8758 .74 262.46 N 90. 96 W 5960363.07 N 677170.23E 17. 631 273.33 9100 .33 69 .960 355 .550 8710. 79 8768 .62 291.87 N 91. 74 W 5960392.45 N 677168.76E 20. 159 302.51 9138 .88 69 .610 3 .810 8724. 13 8781 .96 328.00 N 91. 95 W 5960428.57 N 677167.70E 20. 125 338.25 9172 .25 69 .520 8 .030 8735. 79 8793 .62 359.10 N 88. 72 W 5960459.74 N 677170.19E 11. 853 368.47 9203 .81 70 .400 2 .400 8746. 61 8804 .44 388.61 N 86. 03 W 5960489.30 N 677172.18E 16. 988 397.22 9233 .23 71 .540 359 .590 8756. 21 8814 .04 416.41 N 85. 55 W 5960517.11 N 677172.01E 9. 825 424.62 9267 .25 72 .950 355 .720 8766. 58 8824 .41 448.78 N 86. 88 W 5960549.43 N 677169.92E 11. 599 456.80 9297 .19 75 .500 349 .390 8774. 73 8832 .56 477.33 N 90. 62 W 5960577.89 N 677165.50E 22. 054 485.59 9328 .65 75 .850 348 .510 8782. 51 8840 .34 507.24 N 96. 47 W 5960607.66 N 677158.96E 2. 930 516.05 9362 .43 78 .660 345 .530 8789. 97 8847 .80 539.34 N 103. 87 W 5960639.57 N 677150.80E 11. 967 548.90 9391 .15 82 .970 344 .120 8794. 55 8852 .38 566.70 N 111. 29 W 5960666.74 N 677142.73E 15. 770 577.07 9423 .48 87 .270 344 .470 8797. 30 8855 .13 597.70 N 120. 01 W 5960697.53 N 677133.29E 13. 344 609.05 9453 .47 91 .230 346 .230 8797. 69 8855 .52 626.71 N 127. 59 W 5960726.35 N 677125.02E 14. 449 638.87 22 August, 2005 - 13:57 Page 2 of 5 DrillQuest 3.03.06.008 BPXA Survey Report for 15-20C Your Ref.• API 500292113303 Job No. AKMW38 63474, Surveyed: 10 August 2005 North Slope Alaska Measured True Sub-Sea Vertical Local Coordinates Global Coordinates Dogleg Vertical Depth Incl. Azim. Depth Depth Northings Eastings Northings Eastings Rate Section (ft) (ft) (ft) (ft) (ft) (ft) (ft) (°1100ft) 9483.59 91.580 346.400 8796.96 8854.79 655.96 N 134.71 W 5960755.43 N 677117.21E 1.292 668.88 9518.56 91.850 337.620 8795.91 8853.74 689.18 N 145.50 W 5960788.38 N 677105.65E 25.108 703.35 9548.95 93.250 330.760 8794.55 8852.38 716.49 N 158.71 W 5960815.38 N 677091.80E 23.016 732.38 9583.97 92.280 329.350 8792.86 8850.69 746.80 N 176.17 W 5960845.27 N 677073.63E 4.883 765.01 9616.39 90.700 324.430 8792.02 8849.85 773.94 N 193.87 W 5960871.98 N 677055.29E 15.934 794.55 9646.39 90.000 323.200 8791.84 8849.67 798.15 N 211.58 W 5960895.77 N 677037.02E 4.717 821.20 9677.79 90.180 321.270 8791.79 8849.62 822.97 N 230.81 W 5960920.13 N 677017.21E 6.173 848.68 9707.61 91.490 315.290 8791.35 8849.18 845.21 N 250.64 W 5960941.90 N 676996.85E 20.527 873.71 9737.55 93.430 312.830 8790.07 8847.90 866.01 N 272.13 W 5960962.18 N 676974.88E 10.458 897.57 9769.56 93.510 312.480 8788.13 8845.96 887.66 N 295.63 W 5960983.27 N 676950.87E 1.120 922.58 9800.06 92.990 305.800 8786.40 8844.23 906.87 N 319.24 W 5961001.92 N 676926.82E 21.933 945.19 9833.29 90.790 302.640 8785.30 8843.13 925.55 N 346.69 W 5961019.94 N 676898.93E 11.582 967.87 9866.67 91.850 298.940 8784.53 8842.36 942.63 N 375.35 W 5961036.34 N 676869.88E 11.527 989.15 9896.20 92.020 297.360 8783.54 8841.37 956.55 N 401.38 W 5961049.65 N 676843.53E 5.378 1006.91 9927.97 88.590 296.660 8783.37 8841.20 970.97 N 429.68 W 5961063.40 N 676814.90E 11.019 1025.52 9962.89 86.750 293.140 8784.79 8842.62 985.66 N 461.32 W 5961077.34 N 676782.92E 11.367 1044.90 9994.23 87.270 289.630 8786.42 8844.25 997.07 N 490.46 W 5961088.06 N 676753.52E 11.307 1060.66 10028.88 89.470 290.680 8787.41 8845.24 1009.01 N 522.97 W 5961099.22 N 676720.74E 7.035 1077.45 10059.08 90.260 295.960 8787.48 8845.31 1020.96 N 550.69 W 5961110.51 N 676692.74E 17.678 1093.52 10091.07 89.910 302.640 8787.43 8845.26 1036.60 N 578.57 W 5961125.50 N 676664.50E 20.910 1113.27 10123.47 91.850 307.560 8786.93 8844.76 1055.22 N 605.07 W 5961143.49 N 676637.57E 16.321 1135.75 10149.87 94.040 313.010 8785.58 8843.41 1072.26 N 625.17 W 5961160.05 N 676617.07E 22.222 1155.68 10177.47 94.310 316.870 8783.57 8841.40 1091.70 N 644.65 W 5961179.03 N 676597.14E 13.983 1177.89 10216.71 92.110 323.550 8781.37 8839.20 1121.79 N 669.71 W 5961208.51 N 676571.38E 17.897 1211.47 10246.71 90.790 328.300 8780.61 8838.44 1146.62 N 686.51 W 5961232.94 N 676554.00E 16.428 1238.59 10277.36 93.780 329.530 8779.39 8837.22 1172.85 N 702.32 W 5961258.79 N 676537.58E 10.547 1266.94 10307.51 95.180 335.150 8777.03 8834.86 1199.46 N 716.27 W 5961285.06 N 676523.00E 19.154 1295.38 10340.74 92.990 335.680 8774.66 8832.49 1229.60 N 730.05 W 5961314.87 N 676508.51E 6.780 1327.28 10369.86 92.550 335.510 8773.25 8831.08 1256.09 N 742.07 W 5961341.06 N 676495.87E 1.620 1355.30 10400.38 93.340 331.290 8771.69 8829.52 1283.33 N 755.72 W 5961367.98 N 676481.58E 14.049 1384.32 10431.91 92.110 330.580 8770.19 8828.02 1310.86 N 771.02 W 5961395.14 N 676465.64E 4.503 1413.87 10463.47 91.670 330.060 8769.15 8826.98 1338.26 N 786.63 W 5961422.17 N 676449.38E 2.158 1443.35 10495.00 92.810 335.150 8767.91 8825.74 1366.23 N 801.13 W 5961449.78 N 676434.23E 16.531 1473.21 10525.87 92.640 342.890 8766.44 8824.27 1395.00 N 812.16 W 5961478.28 N 676422.52E 25.051 1503.34 10556.52 91.320 345.700 8765.38 8823.21 1424.48 N 820.45 W 5961507.56 N 676413.54E 10.124 1533.75 BPXA Comment • 22 August 2005 - 13:57 Page 3 of 5 DrillQuest 3.03.06.008 BPXA Survey Report for 15-20C Your Ref.• API 500292113303 Job No. AKMW3863474, Surveyed: 10 August, 2005 Norfh 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) (°I100ft) 10588.40 91.670 350.620 8764.55 8822.38 1455.66 N 826.99 W 5961538.58 N 676406.27E 15.467 1565.56 10622.30 91.230 357.830 8763.69 8821.52 1489.36 N 830.39 W 5961572.19 N 676402.07E 21.301 1599.38 10654.52 94.130 0.290 8762.19 8820.02 1521.53 N 830.92 W 5961604.34 N 676400.78E 11.797 1631.25 10684.73 97.030 6.090 8759.25 8817.08 1551.54 N 829.25 W 5961634.38 N 676401.74E 21.382 1660.64 10718.94 96.150 10.140 8755.32 8813.15 1585.17 N 824.46 W 5961668.11 N 676405.74E 12.038 1693.14 • 10751.52 93.250 12.950 8752.65 8810.48 1616.98 N 817.96 W 5961700.07 N 676411.49E 12.374 1723.57 10785.10 93.080 21.210 8750.79 8808.62 1649.00 N 808.12 W 5961732.31 N 676420.57E 24.566 1753.70 10815.78 90.970 19.450 8749.71 8807.54 1677.75 N 797.47 W 5961761.30 N 676430.54E 8.953 1780.46 10847.58 92.200 10.140 8748.83 8806.66 1708.45 N 789.36 W 5961792.18 N 676437.93E 29.519 1809.55 10878.38 94.220 9.260 8747.10 8804.93 1738.76 N 784.18 W 5961822.61 N 676442.39E 7.152 1838.70 10907.46 92.550 7.320 8745.38 8803.21 1767.48 N 779.99 W 5961851.42 N 676445.90E 8.794 1866.44 10937.41 89.470 6.090 8744.86 8802.69 1797.22 N 776.50 W 5961881.23 N 676448.69E 11.073 1895.28 10973.57 87.450 2.050 8745.83 8803.66 1833.26 N 773.93 W 5961917.33 N 676450.40E 12.487 1930.51 11005.34 86.310 5.210 8747.56 8805.39 1864.92 N 771.92 W 5961949.02 N 676451.67E 10.560 1961.48 11035.98 83.230 0.640 8750.35 8808.18 1895.38 N 770.36 W 5961979.51 N 676452.51E 17.933 1991.33 11065.75 86.310 359.410 8753.07 8810.90 1925.02 N 770.35 W 5962009.15 N 676451.82E 11.134 2020.62 11099.34 91.320 356.420 8753.76 8811.59 1958.57 N 771.57 W 5962042.65 N 676449.81E 17.367 2053.96 11132.97 92.280 354.320 8752.70 8810.53 1992.07 N 774.29 W 5962076.08 N 676446.30E 6.863 2087.48 11166.85 91.930 351.850 8751.46 8809.29 2025.68 N 778.36 W 5962109.59 N 676441.44E 7.358 2121.31 11199.00 92.020 345.000 8750.35 8808.18 2057.14 N 784.81 W 5962140.88 N 676434.25E 21.296 2153.39 11232.05 92.200 343.070 8749.13 8806.96 2088.89 N 793.89 W 5962172.41 N 676424.42E 5.861 2186.16 11264.23 11294.61 93.600 95.100 344.120 344.820 8747.50 8745.20 8805.33 8803.03 2119.72 N 2148.90 N 802.97 W 811.08 W 5962203.02 N 5962232.00 N 676414.62E 676405.82E 5.436 5.446 2218.02 2248.10 11325.16 91.490 349.920 8743.44 8801.27 2178.65 N 817.74 W 5962261.59 N 676398.46E 20.428 2278.52 11361.25 88.680 1.352 8743.39 8801.22 2214.57 N 820.48 W 5962297.43 N 676394.87E 32.615 2314.44 11390.87 92.280 354.670 8743.14 8800.97 2244.15 N 821.51 W 5962326.98 N 676393.15E 25.619 2343.82 11421.15 94.830 0.820 8741.26 8799.09 2274.33 N 822.70 W 5962357.13 N 676391.25E 21.949 2373.83 11450.53 93.780 7.150 8739.05 8796.88 2303.54 N 820.66 W 5962386.38 N 676392.59E 21.779 2402.38 11479.16 91.930 3.100 8737.63 8795.46 2332.02 N 818.11 W 5962414.90 N 676394.47E 15.535 2430.12 11512.05 86.570 5.570 8738.06 8795.89 2364.80 N 815.63 W 5962447.73 N 676396.18E 17.942 2462.12 11536.52 82.440 8.550 8740.40 8798.23 2388.96 N 812.63 W 5962471.96 N 676398.60E 20.778 2485.54 ~ 11580.00 82.440 8.550 8746.12 8803.95 ~ 2431.58 N 806.23 W - 5962514.72 N - 676404.01E 0.000 2526.67 Projected Survey All data is in Fe et (US Survey) unless otherwise stated. Directions and coordinates are relative to True North. Vertical depths are relative to Well Reference . Northings and Eas tings are relative to Well Reference . Global Northings and Eas tings are relative to NAD27 Alaska State Planes, Zone 4. 22 August, 2005 - 13:57 Page 4 of 5 DrillQuest 3.03.06.008 BPXA Survey Report for 15-20C Your Ref: API 500292113303 Job No. AKMW3863474, Surveyed: 10 August 2005 North Slope Alaska The Dogleg Severity is in Degrees per 100 feet (US Survey). Vertical Section is from Well Reference and calculated along an Azimuth of 351.150° (True). Based upon Minimum Curvature type calculations, at a Measured Depth of 11580.OOft., The Bottom Hole Displacement is 2561.76ft., in the Direction of 341.656° (True). Comments Measured Station Coordinates Depth TVD Northings Eastings Comment (ft) (ft) (ft) (ft) 8416.40 8378.35 49.09 S 35.12E Tie On Point 8436.00 8394.20 57.31 S 27.04E Window Point 11580.00 8803.95 2431.58 N 806.23 W Projected Survey Survey tool program for 15-20C From To Measured Vertical Measured Vertical Depth Depth Depth Depth Survey Tool Description (ft) (ft) (ft) (ft) 0.00 0.00 7715.83 7710.80 BP Conventional Gyro (15-20) 7715.83 7710.80 11580.00 8803.95 MWD Magnetic (15-20B) BPXA 22 August, 2005 - 13:57 Page 5 of 5 DrillQuest 3.03.06.008 ' TREr = 5-1/8" FMC GEN 3 WELLHEAD = FMC ACTUATOR = AXELSON KB. ELEV = 71' BF. ELEV = ~ KOP = 8217' Max Angle = 93 @ 10412' Datum MD = 9420' Datum TV D = 8800' SS 72#, L-80, ID = ~ 15-20C SAFETY NOTES: ORIdNAL W ELLBORE NOT SHOW N ON Proposed CTD Sidetrack DIAgt~,M. I 2532' I Minimum ID = 2.37" @ 9690' Start of 2-7/8" STL Liner I 9-5/8" X 7" BKR ZXP LNR TOP PKR I 9-5/8" HES EZSV ~--L 9 5/8" CSG, 47#, L-80, ID = 8.681" 8536' 2-3/8" LNR 4.7#, L-80, .0387 bpf, ID = 1.941" 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.95E 7" CSG, 26#, L-80, .0383 bpf, ID = 6.276" Liner Top Packer ILSX-N4-1/2" Whipstock 8575' PBTD 11933' 4-1/2" LNR, 12.6#, L-80, .0152 bpf, ID = 3.958" 12021' -1 /2" HES X NIP, ID = 3.813" G,4 S I IFr MA Nr1RFl ST MD TVD DEV TYPE VLV LATCH PORT DATE 3 3190 3190 2 KBG-2 DOME BK 16 08/29/03 2 5709 5706 4 KBG-2 SO BK 20 08/29/03 1 7437 7432 0 KBG-2 DMY BK 0 08/23/03 PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: 91 @9480' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2" 6 9480 - 9500 open O8/13,~05 2" 6 9560 - 9590 open 08/13/05 2" 6 9760 - 9950 open 08/13/05 2" 6 10160 - 10190 open 08!13/05 2" 6 10290 - 10320 open 08/13/05 2" 6 10390 - 10420 open 08/13/05 2" 6 10650 - 10870 open 08/13/05 2" 6 10920 - 11090 open 08/13/05 2" 6 11180 - 11230 open 08/13!05 2" 6 11330 - 11370 08.1305 2" 6 11450 - 11480 i5 8043' 4-1 /2" HES X NIP, ID = 3.813" 8064' 7" X 4-1/2" BKR S-3 PERM PF 8087' 4-1/2" HES X NIP, ID = 3.813" 8108' 4-1/2" HES XN NIP, ID = 3.80" 8121' 7" X 4-1/2" BKR ZX 8121' 4-1/2" WLEG, ID = < 8355' Top of Cement 8360' Top of 3-1/2" Liner 8374' 3-1/2" X NIP, ID = 2.813" 9690' I-i 3-3116 x 2-7/8 X-over cmt'ed and CIBP DATE REV BY COMMENTS DATE REV BY COMMENTS 1984 ORIGINAL COMPLETION 07/28/99 SIDETRACK (15-20A) 08/25/03 JLM/KK SIDETRACK (15-206) 08/30/03 JLJ/TLH GLV GO 06/02/04 JLG/KAK ADPERFS; SET CIBP 08/15/05 JMC/TE SIDETRACK (15-20C) Top Pkr PRUDHOE BAY UNfr WELL: 15-20C PERMfT No: 205-093 API No: 50-029-21133-03 SEC 22, T11 N, R14E, 1408' FNL 8 3946' FEL BP Exploration (Alaska) ~ ~ I ~ d ~ ~ ~ ~ ~ ,~ , ~°'~ ~ ~ FRANK H. MURKOWSK/, GOVERNOR olal[~-7~. OIL .~D Vr~-7 1 333 W. 7TM AVENUE, SUITE 100 COI~TSERQA'1'IO1~T COhir-'IISSIOIQ ~;/ ANCHORAGE, ALASKA 99501-3539 J PHONE (907) 279-1433 FAX (907) 2767542 Scott Kolstad CT Drilling Engineer BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, Alaska 99519-6612 Re: Prudhoe Bay 15-20C BP Exploration (Alaska) Inc. Permit No: 205-093 Surface Location: 1408' FNL, 3946' FEL, SEC. 22, T11N, R14E, UM Bottomhole Location: 392' FSL, 4705' FEL, SEC. 15, T 11 N, R 14E, UM Dear Mr. Kolstad: 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 to witness any required test. Contact the Commission's petroleum field inspector at (907) 659- 3607 (pager) . sincerely ~~-,/ aniel T. Seamount, Jr. Commissioner DATED this~~ day of June, 2005 cc: Department of Fish 8s Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL ~~ 20 AAC 25.005 ~.~- ~C~~C~os ,.--- ~.. . ~m r~~ ~ _ , 1a. Type of work ^ Drill ®Redrill ^ Re-Entry 1b. Current Well Class ^ Exploratory ®De '"` n i jvlul~~l~Zone ^ StratigraphicTest ^ Service ^ Development Gas; ^`Sir, ~4 one 2. Operator Name: BP Exploration (Alaska) Inc. 5. Bond: ®Blanket ^ Single Well Bond No. 2S100302630-277 11. Well Name and Number: ~ PBU 15-20C 3. Address: P.O. Box 196612, Anchorage, Alaska 99519-6612 6. Proposed Depth: MD 11200 TVD 8762ss 12. Field /Pool(s): Prudhoe Bay Field / Prudhoe Bay 4a. Location of Well (Governmental Section): Surface: 1408' FNL 3946' FEL SEC 22 T11 N R14E UM 7. Property Designation: ADL 028306 Pool , , . , , , Top of Productive Horizon: 2170' FNL, 4437' FEL, SEC. 22, T11N, R14E, UM 8. Land Use Permit: 13. Approximate Spud Date: July 10, 2005 Total Depth: 392' FSL, 4705' FEL, SEC. 15, T11 N, R14E, UM 9. Acres in Property: 2560 14. Distance to Nearest Property: 28,000' 4b. Location of Well (State Base Plane Coordinates): Surface: x- 677267 y- 5960103 Zone- ASP4 10. KB Elevation (Height above GL): 57.83 feet 15. Distance to Nearest Well Within Pool 280' 16. Deviated Wells: Kickoff Depth: 8525 feet Maximum Hole Angle: 93 de rees 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.03 Downhole: 3250 Surface: 2373 // 1 asing Program: Size Spec cations Setting Depth To Bottom tiantity o ' ement c.f. or sacks Hole Casin Wei ht Grade Cou lin Len th MD TVD MD TVD includin sta a data a-~ /a^ x 3-3/4" s-vz° X za/s° 8.81 # / 6.16 L-80 STL 2725' 8475' 8366' 11200' 8762' 150 sx Class 'G' T9. PRESENT WELL CONDITION SUMMARY (To be completed forRedrill AND Re-entry Operations) Total Depth MD (ft): 12021 Total Depth TVD (ft): 8906 Plugs (measured): 11083 Effective Depth MD (ft): 11083 Effective Depth TVD (ft): 8871 Junk (measured): None Casing Length Size Cement Volume MD TVD tr r I on ct r 112' 20" 2000# Poleset 112' 112' rf 2532' 13-3/8" 1750 sx PF 'E', 400 sx PF 'C' 2532' 2532' r i t 7727 9-5/8" 500 sx Class 'G', 276 sx PF 'C' 7727' 5993' Pr ti n 7717' 7" 182 sx Class 'G' 7558' - 8275' 5909' - 6266' Liner 3901' 4-1/2" 54 sx Class 'G' 8120' - 12021' 6188' - 8906' Perforation Depth MD (ft): 9740' - 10070' Perforation Depth TVD (ft): 7131' - 7335' 20. Attachments ®Filing Fee, $100 ®BOP Sketch ®Drilling Program ^ Time vs Depth Plot ^ Shallow Hazard Analysis ^ Property Plat ^ Diverter Sketch ^ Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: 22. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Josh Chebul, 564-5220 Printed Name S Kolstad Title CT Drilling Engineer Swtt olstad, 4-5 47 ~~/ Prepared By Name/Number: Si nature Lc~t~°!6' ~'' Phone 564-5347 Date Terrie Hubble, 564-4628 Commission Use Only Permit To Drill Number: ,z0~ - ~j API Number: 50- 029-21133-03-00 Permit Appro I Date: ~ ~ See cover letter for other requirements Conditions of Approval: Samples Required ^ Yes No Mud Log Require ^ Yes ~ No Hy{d~rogen Sulfide Measures 'Yes ^ No Directional Survey Required 'Yes ^ No Other: ~ '~~~~ ~~I'~" ~ ~~~~d ~~C . WAN `~EAM~UNT APPROVED BY A roved B ~` s ~ ~ k THE COMMISSION Date Form 10-401 Revised 06/2004 "'"` '~ ~ ~~' i d ~ ~ (,_ Submit Ir5 Duplicate BP • Prudhoe Bay 15-20C CTD Sidetrack CTD Sidetrack Summary 1) Mill window off whipstock (8,525' MD; 8,459'TVD) 2) Drill sidetrack in Zone 1. 3) Cement liner. Run MCNL. Perforate. Mud Program: • Well kill: 8.5 ppg in ~ • Milling/drilling: .6. pg Flo 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: • 3'/z" fully cemente liner [8,475'MD to 9,900'] cross-over to 2'/8" fully cemented liner [9,900'MD to 11,200' ] • A minimum of 31 bls 15.8 ppg cement will be used for liner cementing. Casing/Line nformation 9 5/8", L-80, 47#, burst 6,870 psi; collapse 4,750 psi 7", L-80, 26#, burst 7,240 psi; collapse 5,410 psi 4'h", L-80, 12.6#, burst 8,430 psi; collapse 7,500 psi Well Control: BOP diagram is attached. Pipe rams, blind rams and the CT pack off will be pressure tested to 250 psi and to 3500 psi. The annular preventer will be tested to 250 psi and 2500 psi. Directional • See attached directional plan. Max. planned hole angle is 93 deg. • Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. • Distance to nearest property - 28,000 ft. • Distance to nearest well within pool - 280 ft. Logging • MWD directional and Gamma Ray will be run over all of the open hole section. • Cased hole MCNL. Hazards • The maximum recorded H2S level on pad s 50 pm (DS 15-21A on 02/24/01). Reservoir Pressure • Res. press. is estimated to be 3,250psi at 8,770'TVD (7.1 ppg EMW). Max. surface pressure with gas (0.10 psi/ft) to surface is 2,373 psi. ~ TREE = 5-118" FMC GEN 3 WELLHEAD = FMC ACTUATOR = AXELSON KB. ELEV = _ 71 BF. ELEV = KOP = 821 T Max Angle = 93 @ 10412' Datum MD = 9420' DatumTVD= 8800'SS I 13-3/8" CSG, 72#, L-80, ID = 12.347" I Minimum ID = 3.725" @ 8108' 4-1/2" HES XN NIPPLE ST MD TVD DEV TYPE VLV LATCH PORT DATE 3 3190 3190 2 KBG-2 DMY BK 0 08!29!03 2 5709 5706 4 KBG-2 DMY BK 0 05!23!05 1 7437 7432 0 KBG-2 DMY BK 0 05!23/05 7557' {-~ 9-5/8" X 7" BKR ZXP LNR TOP PKR PERFORATION SUMMARY REF LOG: ANGLE AT TOP PERF: 84 @ 9740' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6 9740 - 9810 O 06/01/04 2-7/8" 6 9860- 10070 O 06/01/04 2-1t2" 4 11250 - 11900 C 08/23/03 9-5/8" HES EZSV 11 7758' I 9 5/8" CSG, 47#, L-80, ID = 8.681" I MILLOUT WINDOW 7727 ' - 7757' ~--~ 4-112" HES X NIP, ID = 3.813" I 8064 7" X 4-112" BKR S-3 PERM PKR 80$T 4-112" HES X NIP, ID = 3.813" 8108' -~ 4-1/2" HES XN NIP, ID = 3.725" 8121' 7" X 4-112" BKR ZXP LNR TOP PKR 8121' 4-1/2" WLEG, ~~ ID = 3.958" 11083' I~ CIBP I I 2-318" LNR, 4.7#, L-80, .0387 bpf, ID = 1.941" I 10864' ~~ 4-112" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" 8120' 7" CSG, 26#, L-80, .0383 bpf, ID = 6.276" $275' PBTD 11933_ 4-1/2" LNR, 12.6#, L-80, .0152 bpf, ID = 3.958" 12021' DATE REV BY COMMENTS DATE REV BY COMMENTS 1984 ORIGINAL COMPLETION 07/28199 SIDEfRACK(15-20A) 08!25103 JLM/KK SIDETRACK(15-206} 08/30/03 JLJ/TLH GLV C/O 06!02104 JLG/KAK ADPERFS; SET CIBP 05!23/05 KSB/PJC GLV CIO SAFETY ES: ORIGINAL WELLBORE NOT SHOWN ON 15 -2 0 B DIAGRAM. 4-1/2" HES X NIP, ID = 3.813" GAS LIFT MANDRELS PRUDHOE BAY UNfT WELL: 15-20B PERMfI No: 2031360 API No: 50-029-21133-02 SEC 22, T11N, R14E, 1408' FNL & 3946' FEL BP F~cploration (Alaska} TREE = 5-1 /8" FML' GFN 3 WELLHEAD= FMC ACTUATOR = AXELSON KB. ELEV = 71' BF. ELEV = ? KOP = 8217' Max Angle = 93 @ 10412' Datum MD = 9420' Datum ND = 8800' SS ~ 13-3/8" CSG, 72#, L-80, ID = 12.347" ~ Minimum ID = 3.725" @ 8108' 4-1 /2" HES XN NIPPLE PERFORATION SUMMARY Rff LOG: ANGLE AT TOP PERF: 84 @ 9740' Note: Refer to Production DB for historical pert data SIZE SPF INTERVAL Opn/Sqz DATE 2-7/8" 6 9740 - 9810 isolated proposed 2-7/8" 6 9860 - 10070 isolated proposed 2-1/2" 4 11250 - 11900 isolated proposed 9-5/8" HES EZSVI~ 9 5/8" CSG, 47#, L-80, ID = 8.681 ^ 8536' 2-3/8" LNR, 4.7#, L-80, .0387 bpf, ID = 1.941" ~ 108) 4-1/2" TBG, 12.6#, L-80, .0152 bpf, ID = 3.958" 812 7" CSG, 26#, L-80, .0383 bpf, ID = 6.276" $275 Liner Top Packer 8475' • 15-20C SAFETY NOTES: ORIGINAL WELLBORE NOT SHOWN ON Proposed CTD Sidetrack DwGRAM. 8525' -8575' 2209' -j 4-1/2" HES X NIP, ID = 3.813" GAS LIFT MANDRB_S ST MD ND DEV TYPE VLV LATCH PORT DATE 3 3190 3190 2 KBG-2 DOME BK 16 08/29/03 2 5709 5706 4 KBG-2 SO BK 20 08/29/03 1 7437 7432 0 KBG-2 DMY BK 0 08/23/03 8043' 8064' 8087' 8108' 8121' 8121' 8475' - 8475' - 8495' _ ~ 9900' - 7557' I-i 9-5/8" X 7" BKR ZXP LNR TOP PKR MILLOUT WMIDOW 7727 ' - 7757' J 4-1/2" HES X NIP, ID = 3.813" ] 7" X 4-1/2" BKR S-3 PERM PKR ] 4-1/2" HES X NIP, ID = 3.813" ] 4-1/2" HES XN NIP, ID = 3.725" 7" X 4-1/2" BKR ZXP Lnr Top Pkr 4-1/2" WLEG, ID = 3.958" Top of ment Top o 3-1/ "Liner 3- X NIP, ID = 2.813" /16 x 2-7/8 X-over 11200' ~ PBTD 11933' 12.6#, L-80, .0152 bpf, ID = 3.958" 12021' DATE REV BY COMMENTS DATE REV BY COMMEMS 1984 ORIGINAL COMPLETION 07/28/99 SIDETRACK(15-20A) 08/25103 JLMIKK SIDETRACK(15-208) 08/30/03 JLJ/TLH GLV GO 06/02/04 JLG/KAK ADPERFS: SET CIBP i t i ~..~__i __~~ _~ PRUDHOE BAY UNfr WELL: 15-206 PERMIT No: 2031360 API No: 50-029-21133-02 SEC 22, T11 N, R14E, 1408' FNL & 3946' FEL BP Exploration (Alaska) ~ Baker Hughes INTEQ Baker Hughes INTEQ Planning Report ~~ INTEQ Company: , SP Amoco Dater 6/13/2005 ' Time: 15:44:31 Page: 1 -- , Field: Prudhoe Bay Co-ordinate(NE) Reference: Well: 15-20, True North Site: PB DS 15 Vertical (TVD) Reference: 57,83' 57.8 Well: 15-20 Section (VS) Reference: Well (O.OON,O.OOE,351.15Azi) Wellpathe Plan 14, 15-20C Survey Calculation Method: Minimum Curvahue Dh: OrarJP Field: Prudhoe Bay North Slope UNITED STATES Map System:US State Plane Coordinate System 1927 Map Zone: Alaska, Zone 4 Geo Datum: NAD27 (Clarke 1866) Coordinate System: Well Centre Sys Datum: Mean Sea Level Geomagnetic Model: bggm2005 Site: PB DS 15 TR-11-14 UNITED STATES :North Slope Site Position: Northing: 5958837.36 ft Latitude: 70 17 35.236 N From: Map Easting: 676296.98 ft Longitude: 148 34 21.213 W Position Uncertainty: 0.00 ft North Reference: True Ground Level: 0.00 ft Grid Convergence: 1.34 deg Well: 15-20 Slot Name: 15-20 Well Position: +N/-S 1242.44 ft Northing: 5960102.83 ft Latitude: 70 17 47.455 N +E7-W 999.86 ft Easting : 677267.36 ft Longitude: 148 33 52.070 W Position Uncertainty: 0.00 ft Wellpath: Plan 14, 15-20C Drilled From: 15-208 500292113303 Tie-on Depth: 8477.69 ft Current Datum: 57.83' Height 57.83 ft Above System Datum: Mean Sea Level Magnetic Data: 6/7/2005 Declination: 24.95 deg Field Strength: 57607 nT Mag Dip Angle: 80.89 deg Vertical Section: Depth From (TVD) +N/-S +E/-W Direction ft ft ft deg 28.50 0.00 0.00 351.15 Plan: Plan #14 Copy of Lamar's plan #14 Date Composed: Version: 6/7/2005 8 Principal: Yes Tied-to: From: Definitive Path Targets Name Description ;Dip. Dir. TVD ft +NJ-S ft +E/-W ft Map Northing ' ft `Map Easdng ft <-- Latitude ---~ Deg Mia Ser <-- Longitude --> Deg Min Sec 15-20C Polygon 57.83 405.17 48.21 5960509.00 677306.00 70 17 51.440 N 148 33 50.664 W -Polygon 1 57.83 405.17 48.21 5960509.00 677306.00 70 17 51.440 N 148 33 50.664 W -Polygon 2 57.83 478.99 141.99 5960585.00 677398.00 70 17 52.166 N 148 33 47.931 W -Polygon 3 57.83 1015.12 -322.53 5961110.00 676921.00 70 17 57.439 N 148 34 1.472 W -Polygon 4 57.83 1476.27 -703.78 5961562.00 676529.00 70 18 1.974 N 148 34 12.587 W -Polygon 5 57.83 2032.40 -658.65 5962119.00 676561.00 70 18 7.443 N 148 34 11.273 W -Polygon 6 57.83 2028.65 -838.80 5962111.00 676381.00 70 18 7.406 N 148 34 16.526 W -Polygon 7 57.83 1694.91 -939.71 5961775.00 676288.00 70 18 4.124 N 148 34 19.466 W -Polygon 8 57.83 1398.66 -975.71 5961478.00 676259.00 70 18 1.210 N 148 34 20.515 W -Polygon 9 57.83 1097.97 -865.76 5961180.00 676376.00 70 17 58.253 N 148 34 17.308 W -Polygon 10 57.83 779.82 -313.07 5960875.00 676936.00 70 17 55.125 N 148 34 1.196 W 15-20C, Fauitl 57.83 1740.38 -619.53 5961828.00 676607.00 70 18 4.571 N 148 34 10.132 W -Polygon 1 57.83 1740.38 -619.53 5961828.00 676607.00 70 18 4.571 N 148 34 10.132 W -Polygon 2 57.83 1999.21 -142.26 5962098.00 677078.00 70 18 7.117 N 148 33 56.217 W 15-20C, Fault2 57.83 1478.99 -1115.86 5961555.00 676117.00 70 18 2.000 N 148 34 24.601 W -Polygon 1 57.83 1478.99 -1115.86 5961555.00 676177.00 70 18 2.000 N 148 34 24.601 W -Polygon 2 57.83 1715.11 -1202.32 5961789.00 676025.00 70 18 4.322 N 148 34 27.123 W 15-20C, Targetl 8784.83 299.17 -80.33 5960400.00 677180.00 70 17 50.397 N 148 33 54.411 W 15-20C, Target4 8817.83 1794.83 -807.31 5961878.00 676418.00 70 18 5.107 N 148 34 15.607 W 15-20C, Target2 8856.83 609.94 -66.00 5960711.00 677187.00 70 17 53.454 N 148 33 53.993 W 15-20C, Target3 8856.83 992.39 -419.10 5961085.00 676825.00 70 17 57.215 N 148 34 4.287 W • ~, Baker Hughes INTEQ Baker Hughes INTEQ Planning Report ~K~~R^ Es INTEC2 Company: BP Amoco Date: 6!13/2005 Time: .15:4431 Page: 2 Field: Prudhoe :Bay Co-ordinate(NE) Refereuce: We1115-20, True North Site: PB DS 15 Vertical(TVD) Retereuce: 57.83'-57.8 Weil .15-20 Section (VS) Reference: ' Well (O.OON,O.OOE,351.1 5Azi) Wellpath: Plan 94, 15-20C Survey Calculation Method: Minimum Curvature Db: Oracle Annotation MD TVD ft ft 8477.69 8426.08 TIP 8525.00 8458.93 KOP 8545.00 8472.22 End of 9°/100' DLS 8620.00 8533.63 4 8675.00 8586.48 5 8725.00 8634.62 6 8896.93 8739.98 End of 35°/100' 9173.93 8781.99 8 9268.30 8802.71 DS15-20A is 48.7' Below 9309.93 8816.46 9 9534.45 8857.95 10 10073.50 8857.95 DS15-39 is 15' Below 10144.45 8857.95 11 11200.00 0.00 TD Plan Section Information MD Inc! Azim ' TVD +N/-S E/-W DLS Band - Turn TFO ::Target ft deg deg ft ft ft degl100ft deg/100ft?deg/100ft deg 8477.69 42.08 222.88 8426.08 -76.79 8.56 0.00 0.00 0.00 0.00 8511.83 47.91 221.94 8450.21 -94.61 -7.70 17.19 17.08 -2.75 353.16 8525.00 49.24 221.61 8458.93 -101.98 -14.28 10.27 10.10 -2.51 349.35 8545.00 47.44 221.61 8472.22 -113.15 -24.20 9.00 -9.00 0.00 180.00 8620.00 21.19 221.61 8533.63 -144.49 -52.03 35.00 -35.00 0.00 180.00 8675.00 13.70 285.09 8586.48 -150.28 -65.05 35.00 -13.62 115.41 140.00 8725.00 20.12 344.48 8634.62 -140.37 -73.13 35.00 12.85 118.79 100.00 8898.93 81.00 344.48 8739.98 -16.94 -107.40 35.00 35.00 0.00 0.00 9173.93 81.92 17.85 8781.99 250.94 -101.84 12.00 0.33 12.13 91.00 9309.93 68.73 7.89 8816.46 378.66 -72.31 12.00 -9.70 -7.32 215.00 9534.45 90.00 350.96 8857.95 597.18 -75.65 12.00 9.48 -7.54 320.00 10144.45 90.00 277.76 8857.95 995.25 -482.72 12.00 0.00 -12.00 270.00 11200.00 92.33 44.46 8819.37 1801.58 -759.38 12.00 0.22 12.00 87.10 Survey MD Inc! Azim SS TVD N/S E/W MapN MapE DLS. VS TFO `Tool ft deg deg. ft ft °ft ft ft deg/100ft ft deg 8477.69 42.08 222.88 8368.25 -76.79 8.56 5960026.27 677277.73 0.00 -77.20 0.00 MWD 8500.00 45.89 222.24 8384.30 -88.20 -1.91 5960014.61 677267.53 17.19 -86.86 353.16 MWD 8511.83 47.91 221.94 8392.38 -94.61 -7.70 5960008.07 677261.89 17.19 -92.30 353.62 MWD 8525.00 49.24 221.61 8401.10 -101.98 -14.28 5960000.55 677255.49 10.27 -98.57 349.35 MWD 8545.00 47.44 221.61 8414.39 -113.15 -24.20 5959989.15 677245.83 9.00 -108.08 180.00 MWD 8550.00 45.69 221.61 8417.83 -115.86 -26.61 5959986.38 677243.49 35.00 -110.39 180.00 MWD 8575.00 36.94 221.61 8436.59 -128.19 -37.56 5959973.80 677232.83 35.00 -120.89 180.00 MWD 8600.00 28.19 221.61 8457.64 -138.24 -46.49 5959963.54 677224.15 35.00 -129.45 180.00 MWD 8620.00 21.19 221.61 8475.80 -144.49 -52.03 5959957.17 677218.75 35.00 -134.76 180.00 MWD 8625.00 19.88 224.92 8480.48 -145.76 -53.23 5959955.86 677217.58 35.00 -135.84 140.00 MWD 8650.00 14.71 249.09 8504.37 -149.91 -59.21 5959951.57 677211.70 35.00 -139.02 136.90 MWD 8675.00 13.70 285.09 8528.65 -150.28 -65.05 5959951.07 677205.88 35.00 -138.48 113.77 MWD 5700.00 14.87 320.79 8552.93 -147.01 -69.94 5959954.22 677200.91 35.00 -134.50 100.00 MWD 8725.00 20.12 344.48 8576.79 -140.37 -73.13 5959960.78 677197.57 35.00 -127.45 65.33 .MWD 8750.00 28.87 344.48 8599.52 -130.39 -75.90 5959970.69 677194.56 35.00 -117.16 0.00 MWD 8775.00 37.62 344.48 8620.40 -117.20 -79.56 5959983.80 677190.59 35.00 -103.56 360.00 MWD 8800.00 46.37 344.48 8638.96 -101.09 -84.03 5959999.79 677185.74 35.00 -86.96 0.00 MWD 8825.00 55.12 344.48 8654.77 -82.46 -89.21 5960018.30 677180.13 35.00 -67.75 360.00 MWD 8850.00 63.87 344.48 8667.44 -61.72 -94.96 5960038.89 677173.88 35.00 -46.38 0.00 MWD 8875.00 72.62 344.48 8676.70 -39.37 -101.17 5960061.09 677167.15 35.00 -23.34 360.00 MWD 8898.93 81.00 344.48 8682.15 -16.94 -107.40 5960083.36 677160.40 35.00 -0.22 0.00 MWD 8900.00 81.00 344.61 8682.32 -15.92 -107.68 5960084.37 677160.09 12.00 0.83 91.00 MWD 8925.00 80.96 347.65 8686.24 8.04 -113.60 5960108.19 677153.61 12.00 25.43 90.98 MWD • ~) Baker Hughes INTEQ Baker Hughes INTEQ Planning Report ~~ INTEt;2 Company: BP Amoco Date: 6!13!2005 Time: 15:44:31 Page: 3 Field: Prudhoe Bay. Site: PB DS 15 Co-ordiuate(NE) Refereuce: Vertical (TYD) Reference: WeIL' 15-20, 57.83' 87.8.. True North WeIL• 15-20 Section (VS) Refereuce: Well {O.OON ,O.OOE,351.1 5Azi) Wellpath: Plan 14,15-20C Survey Calculation Method: Minimum Curvature Db: Oracle Survey MD Inc! Az~m SS TVD N/S E/W Ma N Ma E DLS VS TFO Tool ft deg deg ft ft ft ft ft deg/100ft ft deg ~ 8950.00 80.95 350.69 8690.17 32.29 -118.24 5960132.32 677148.40 12.00 50.10 90.50 MWD 8975.00 80.96 353.73 8694.11 56.75 -121.58 5960156.69 677144.48 12.00 74.78 90.03 MWD 9000.00 80.99 356.76 8698.03 81.35 -123.63 5960181.24 677141.85 12.00 99.40 89.55 MWD 9025.00 81.05 359.80 8701.93 106.03 -124.37 5960205.89 677140.53 12.00 123.90 89.07 MWD 9050.00 81.14 2.84 8705.80 130.72 -123.80 5960230.59 677140.52 12.00 148.21 88.60 MWD 9075.00 81.25 5.87 8709.63 155.35 -121.93 5960255.25 677141.81 12.00 172.26 88.13 MWD 9100.00 81.38 8.90 8713.41 179.86 -118.75 5960279.82 677144.41 12.00 195.98 87.66 MWD 9125.00 81.54 11.93 8717.12 204.17 -114.28 5960304.23 677148.30 12.00 219.32 87.20 MWD 9150.00 81.72 14.96 8720.76 228.22 -108.53 5960328.41 677153.48 12.00 242.20 86.75 MWD 9173.93 81.92 17.85 8724.16 250.94 -101.84 5960351.28 677159.63 12.00 263.62 86.31 MWD 9175.00 81.81 17.78 8724.31 251.95 -101.52 5960352.30 677159.93 12.00 264.57 215.00 MWD 9192.13 80.13 16.58 8727.00 268.11 -96.52 5960368.57 677164.55 12.00 279.77 215.01 15-20C, 9200.00 79.36 16.03 8728.40 275.55 -94.35 5960376.06 677166.54 12.00 286.78 215.20 MWD 9225.00 76.92 14.25 8733.54 299.16 -87.96 5960399.81 677172.38 12.00 309.13 215.30 MWD 9250.00 74.49 12.43 8739.71 322.73 -82.37 5960423.51 677177.41 12.00 331.56 215.66 MWD 9275.00 72.07 10.57 8746.91 346.19 -77.59 5960447.07 677181.63 12.00 354.00 216.11 MWD 9300.00 69.67 8.67 8755.10 369.47 -73.64 5960470.44 677185.03 12.00 376.40 216.65 MWD 9309.93 68.73 7.89 8758.63 378.66 -72.31 5960479.65 677186.15 12.00 385.27 217.27 MWD 9313.75 69.08 7.58 8760.00 382.19 -71.83 5960483.19 677186.54 12.00 388.69 320.00 15-20C, 9325.00 70.12 6.66 8763.92 392.65 -70.52 5960493.68 677187.60 12.00 398.83 320.11 MWD 9350.00 72.44 4.65 8771.95 416.21 -68.19 5960517.29 677189.38 12.00 421.75 320.43 MWD 9375.00 74.78 2.70 8779.00 440.14 -66.66 5960541.25 677190.35 12.00 445.16 321.08 MWD 9400.00 77.14 0.79 8785.07 464.38 -65.92 5960565.50 677190.51 12.00 468.99 321.63 MWD 9425.00 79.52 358.92 8790.12 488.86 -65.99 5960589.97 677189.87 12.00 493.19 322.09 MWD 9450.00 81.90 357.07 8794.16 513.52 -66.85 5960614.59 677188.42 12.00 517.69 322.47 MWD 9475.00 84.29 355.25 8797.16 538.28 -68.51 5960639.31 677186.17 12.00 542.41 322.77 MWD 9500.00 86.69 353.44 8799.13 563.07 -70.97 5960664.04 677183.13 12.00 567.29 322.99 MWD 9525.00 89.09 351.64 8800.05 587.84 -74.22 5960688.72 677179.30 12.00 592.26 323.13 MWD 9534.45 90.00 350.96 8800.12 597.18 -75.65 5960698.02 677177.66 12.00 601.71 323.20 MWD 9550.00 90.00 349.09 8800.12 612.50 -78.34 5960713.27 677174.60 12.00 617.26 270.00 MWD 9575.00 90.00 346.09 8800.12 636.91 -83.71 5960737.55 677168.66 12.00 642.21 270.00 MWD 9600.00 90.00 343.09 8800.12 661.01 -90.35 5960761.48 677161.45 12.00 667.04 270.00 MWD 9625.00 90.00 340.09 8800.12 684.73 -98.24 5960785.01 677153.00 12.00 691.69 270.00 MWD 9650.00 90.00 337.09 8800.12 708.00 -107.37 5960808.06 677143.33 12.00 716.09 270.00 MWD 9675.00 90.00 334.09 .8800.12 730.76 -117.70 5960830.57 677132.47 12.00 740.17 270.00 MWD 9700.00 90.00 331.09 8800.12 752.96 -129.20 5960852.48 677120.44 12.00 763.87 270.00 MWD 9725.00 90.00 328.09 8800.12 774.51 -141.86 5960873.73 677107.28 12.00 787.12 270.00 MWD 9750.00 90.00 325.09 8800.12 795.38 -155.62 5960894.27 677093.03 12.00 809.85 270.00 MWD 9775.00 90.00 322.09 8800.12 815.50 -170.46 5960914.03 677077.73 12.00 832.01 270.00 MWD 9800.00 90.00 319.09 8800.12 834.81 -186.33 5960932.96 677061.41 12.00 853.54 270.00 MWD 9825.00 90.00 316.09 8800.12 853.27 -203.18 5960951.02 677044.12 12.00 874.37 270.00 MWD 9850.00 90.00 313.09 8800.12 870.82 -220.98 5960968.14 677025.91 12.00 894.45 270.00 MWD 9875.00 90.00 310.09 8800.12 887.41 -239.68 5960984.29 677006.83 12.00 913.72 270.00 MWD 9900.00 90.00 307.09 8800.12 903.01 -259.22 5960999.41 676986.93 12.00 932.14 270.00 MWD 9925.00 90.00 304.09 8800.12 917.56 -279.54 5961013.48 676966.27 12.00 949.64 270.00 MWD 9950.00 90.00 301.09 8800.12 931.02 -300.60 5961026.44 676944.90 12.00 966.18 270.00 MWD 9975.00 90.00 298.09 8800.12 943.37 -322.34 5961038.27 676922.88 12.00 981.73 270.00 MWD 10000.00 90.00 295.09 8800.12 954.55 -344.69 5961048.93. 676900.27 12.00 996.22 270.00 MWD 10025.00 90.00 292.09 8800.12 964.56 -367.60 5961058.39 676877.14 12.00 1009.63 270.00 MWD 10050.00 90.00 289.09 8800.12 973.35 -391.00 5961066.63 676853.54 12.00 1021.92 270.00 MWD 10075.00 90.00 286.09 8800.12 980.91 -414.83 5961073.62 676829.54 12.00 1033.05 270.00 MWD 10100.00 90.00 283.09 8800.12 987.20 -439.02 5961079.34 676805.21 12.00 1042.99 270.00 MWD ~, Baker Hughes INTEQ Baker Hughes INTEQ Planning Report INTEt;2 Company; BP Amoco Date: 6113/2005 Time: 15:44:31 Page: 4 Field: Prudhoe Bay Co-ordinate(NE) Reference: Well:95-20 , True Nortlt Site: PB DS 15 Vertical (TVD) Reference: b7.83`57.8 Well: 15-20 ' Wellpath: Plan 14, 15-20C Section (VS) Reference:' Well (O.OON,O.OOE,351.1 Survey Galculatiou Method: Minimum Curvature 5Azi) Db: OraGe Survey MD .Intl Azim SS TVD N/S E/W MapN MapE DLS VS TFO Tool ft deg deg ft- ft ft ft ft deg/100ft ft' deg 10125.00 90.00 280.09 8800.12 992.23 -463.51 5961083.79 676780.61 12.00 1051.73 270.00 MWD 10144.45 90.00 277.76 8800.12 995.25 -482.72 5961086.35 676761.33 12.00 1057.66 270.00 MWD 10150.00 90.03 278.42 8800.12 996.03 -488.21 5961087.00 676755.82 12.00 1059.28 87.10 MWD 10175.00 90.19 281.42 8800.07 1000.33 -512.84 5961090.73 676731.10 12.00 1067.32 87.10 MWD 10200.00 90.34 284.42 8799.96 1005.92 -537.20 5961095.74 676706.62 12.00 1076.59 87.11 MWD 10225.00 90.49 287.41 8799.78 1012.78 -561.24 5961102.02 676682.43 12.00 1087.06 87.12 MWD 10250.00 90.64 290.41 8799.54 1020.88 -584.89 5961109.56 676658.60 12.00 1098.71 87.14 MWD 10275.00 90.78 293.41 8799.23 1030.20 -608.08 5961118.34 676635.19 12.00 1111.49 87.17 MWD 10300.00 90.93 296.40 8798.85 1040.73 -630.75 5961128.33 676612.28 12.00 1125.38 87.21 MWD 10325.00 91.07 299.40 8798.42 1052.42 -652.84 5961139.50 676589.93 12.00 1140.33 87.25 MWD 10350.00 91.21 302.40 8797.92 1065.26 -674.28 5961151.62 676568.19 12.00 1156.31 87.30 MWD 10375.00 91.35 305.39 8797.36 1079.20 -695.03 5961165.26 676547.12 12.00 1173.28 87.36 MWD 10400.00 91.48 308.39 8796.75 1094.20 -715.01 5961179.79 676526.79 12.00 1191.17 87.43 MWD 10425.00 91.61 311.39 8796.07 1110.22 -734.18 5961195.36 676507.24 12.00 1209.96 87.50 MWD 10450.00 91.73 314.39 8795.34 1127.23 -752.49 5961211.93 676488.54 12.00 1229.58 87.59 MWD 10475.00 91.85 317.39 8794.56 1145.17 -769.88 5961229.45 676470.73 12.00 1249.98 87.67 MWD 10500.00 91.96 320.39 8793.73 1163.99 -786.31 5961247.88 676453.87 12.00 1271.11 87.77 MWD 10525.00 92.07 323.39 8792.85 1183.65 -801.73 5961267.16 676437.99 12.00 1292.90 87.87 MWD 10550.00 92.18 326.39 8791.92 1204.08 -816.09 5961287.25 676423.15 12.00 1315.30 87.97 MWD 10575.00 92.27 329.39 8790.95 1225.24 -829.37 5961308.09 676409.38 12.00 1338.25 88.08 MWD 10600.00 92.37 332.39 8789.94 1247.06 -841.52 5961329.62 676396.71 12.00 1361.68 88.20 MWD 10625.00 92.45 335.39 8788.89 1269.49 -852.51 5961351.78 676385.20 12.00 1385.53 88.32 MWD 10650.00 92.53 338.39 8787.80 1292.46 -862.31 5961374.51 676374.86 12.00 1409.73 88.45 MWD 10675.00 92.60 341.40 8786.68 1315.91 -870.90 5961397.75 676365.72 12.00 1434.23 88.58 MWD 10700.00 92.66 344.40 8785.54 1339.77 -878.24 5961421.43 676357.82 12.00 1458.94 88.71 MWD 10725.00 92.72 347.40 8784.36 1363.99 -884.33 5961445.50 676351.17 12.00 1483.80 88.85 MWD 10750.00 92.77 350.40 8783.16 1388.49 -889.13 5961469.88 676345.79 12.00 1508.75 88.99 MWD 10775.00 92.81 353.41 8781.95 1413.21 -892.65 5961494.50 676341.69 12.00 1533.72 89.14 MWD 10800.00 92.84 356.41 8780.71 1438.08 -894.86 5961519.31 676338.89 12.00 1558.63 89.28 MWD 10825.00 92.87 359.41 8779.47 1463.03 -895.77 5961544.23 676337.39 12.00 1583.42 89.43 MWD 10850.00 92.89 2.42 8778.21 1487.99 -895.37 5961569.19 676337.20 12.00 1608.03 89.58 MWD 10875.00 92.90 5.42 8776.95 1512.90 -893.67 5961594.13 676338.32 12.00 1632.38 89.73 MWD 10900.00 92.90 8.43 8775.69 1537.68 -890.66 5961618.98 676340.74 12.00 1656.40 89.88 MWD 10925.00 92.89 11.43 8774.42 1562.27 -886.35 5961643.66 676344.47 12.00 1680.04 90.03 MWD 10950.00 92.88 14.43 8773.16 1586.60 -880.77 5961668.12 676349.48 12.00 1703.22 90.19 MWD 10975.00 92.86 17.44 8771.91 1610.61 -873.91 5961692.28 676355.76 12.00 1725.89 90.34 MWD 11000.00 92.83 20.44 8770.67 1634.23 -865.81 5961716.08 676363.31 12.00 1747.97 90.49 MWD 11025.00 92.79 23.44 8769.44 1657.38 -856.48 5961739.45 676372.09 12.00 1769.42 90.64 MWD 11050.00 92.75 26.45 8768.24 1680.02 -845.95 5961762.33 676382.08 12.00 1790.17 90.78 MWD 11075.00 92.69 29.45 8767.05 1702.08 -834.25 5961784.65 676393.26 12.00 1810.16 90.93 MWD 11100.00 92.64 32.45 8765.89 1723.49 -821.40 5961806.36 676405.59 12.00 1829.35 91.07 MWD 11125.00 92.57 35.46 8764.75 1744.21 -807.46 5961827.40 676419.04 12.00 1847.67 91.21 MWD 11150.00 92.49 38.46 8763.65 1764.16 -792.44 5961847.70 676433.58 12.00 1865.08 91.35 MWD 11175.00 92.41 41.46 8762.58 1783.31 -776.40 5961867.21 676449.16 12.00 1881.52 91.48 MWD 11200.00 92.33 44.46 8761.54 1801.58 -759.38 5961885.89 676465.75 12.00 1896.97 91.61 MWD BP AYmoco rrr +a lnuc Naar1»N ~rww1 YYN°wllri t4aN iw w Yet Nr1.N NNie1 ^a °wr Ir.aY a7A1ar aat.l a' &N a.N MN REFERENCE INFORMATION Co-ortlinale (WE) Reference Well Centre'. 1520, True North Vertical (TVD Releren 57.83' S7.B3 Section (VS~ Reference. Slot - (0 OON,O DOE) MeasuraE Depth Reference: 57.83' 57.83 Calatation Melhoo'. Minimum Curvature ia~ wrnNw a°NLY.a iai:w i °r x'w ar°.w. 7900 j'; ~' 8000 --~•+} ,..,ezoo , e 8300 '„ I i 08400 -`~?jam r n..~ i 8500 ', "+' a C esoo a ~ ~ 8700 a~ y3~ eeoo _,--"' 152 ~ asoo m 2 9000 ', stoo 9200 ' ~ '~ 9300 j 9400 !iii .~,. ar.. n.°. ... r-°.. w~ si rw~°ge. r~ Y v ~Ymc: r.p~io mYU Yzs +~oio rax .~~. LEGEND 15-20 i520) - 1520 1 S20A I a ~~y ~ ~ o ,520,5-20A 'B1) p j r a ~GME3 b 1520 15-208) 1539 t5-39) - Plan t4.15-zoc rL~t -- Ptanau I~~~.i 2400 t + +~•-~ I ... 2200 + ; 2000 I 1 ^1' 1800 I I „w~1600 I i .:-.i _ C 1400 ', I 1 1 ; ; T• % 1 O 1200 i+1 LL H ~ ~. I + 1000 ~/ t 900 ' I I ~ ~ O ' -j 600 ' r ~I ~ -. ^f 400 ~. ~ 11,~ -r: , 1 ~ ~ ~ 200 ~ 1, ... .. -:l. _1 1 T Azimuths to True North fin' Pla" at° (tsm/Plan 14, 1SZOC) M Magnetic North: 24.95° IL Cregeo By: Bin Mialaeleon Date: e~t3rzoo5 Maggnetic Field ~ C,ooldcl Ildormatlon Svength: 57607nT elu Mkhaelson Dip Angle: 80.89° Owed (907)267-6624 Date: 6/7/2005 Cen (907) 30i-73570 Model: bggm2005 E-mail. bin.micnaelson@inteq.com '~ 11 i~ 1 r i '.j C li i I t • I - I I I ~ I}}}~~+++~~---rrrrr----- I I rI - I I 1 1 1 TII I I I~ 1 1.~1 I.~. tll_ __t rl~. l 1 11I ( • a-. 1111 11~ 1 - 1 1 1 i 1 i~„t i_ ~ 1 1 I ++ I 1 / I. t. 11 I I 1 1 111: 1 1 II: t ~. 20C Ta e13 ' I ~I++1 r Ijy ~ 1 1 (I{Y r 1 , t5zocra t2 1:1 1r 1 T+F 11 -1~ i Ii 1 :-:~ ~ 1-}t ~ I I . 1 I 1 ~. ' I I 1 i I I` 1 os152aAis4e.rBe ~ '~` r r ' i ~ 1 i I -~ '~, I I~ I 4- f. ~i.. 1- rli - 1520 7520APB7 ;- , TIP ,620 ,620 iI ~ Ir. •il ++ 11 OP rrFr 1 f~f I ~ EM ol9'/100' DL .. { _ 1_{ ~. r.l r:+ - I i 5 t I ~ 1 i l~ ~ l I 11 1i 1 I l ~ 1} ,; I: ,f f 11 i -+. t .~,- -+ t ~ ~, r .. i ,; ~ ffjj~ -~r- - t IJfjI if~~ 1•!. ~' ~`iT I .'_.'1""I1.1 -~T'. 1 ti..-~ I .T~..I .1+.-. West(-)/East(+) [200ft/in] -;~~.., _~~+- ~- - :; ~<<_ ii 0 3100 PM • Vertical Section at 351.15° [100ft/in] - _-- niini~uun are Nordic 1 bighole i ~_ bag bag of slips cross .- - Dowell Blind/Shears 2 3/8" combi ram/slips Mud Cross variable bore pipe 3 1/2"-2 7/8" 2 3/8" combi ram/slips Swab V • BAG 7 1 /16" 5000psi TOTs 7 1/16" 5000psi Mud Cross 7 1/16" 5000psi TOTs / 7 1/16" 5000psi Flow Tee TERRIE L RUBBLE s9-s~izs2 207 BP EXPLORATION AK'INC. "Mastercard Check" PO BOX 1966.1.2 MB 7-5 ANCHORAGE, AK 99519-6612 DATE' ~~ ~ .v PAY TO THE ~/~ ORDER OF C $ / ~ . ~~ W First National Bank Alaska DOLLARS Anchorage; AK 99b07 .MEMO I~- ~~ ~ ~:1 2 5 200060:99 L4~~~6 2 27~~ri55.611': 0 207 i • • • TRANSMITAL LETTER CHECK LIST CIRCLE APPROPRIATE LETTER/PARAGRAPHS TO BE INCLUDED IN TRANSMITTAL LETTER WELL NAME ~~~ ~~ ~D C PTD# ~ d,~ - c~ ,7 ~ CHECK WHAT ADD-ONS "CLUE" APPLIES OPTIONS) MULTI The permit is for a new welibore segment of LATERAL existing well , Permit No, API No. (If API number Production should continue to be reported as last two (2) digits a function of the original API number stated are between 60-69) above. PILOT HOLE In accordance with 20 AAC 25.005(f), all (p)er records, -data and logs acquired for the pilot hole must be clearly differentiated in both name (name on permit plus PH} and API number (50 - 70/80) from records, data and logs acquired for well (name on permit). SPACING The permit is approved subject to full EXCEPTION compliance with 20 AAC 25.055. Approval to perforate and produce/infect is contingent upon issuance of a conservation order approving a spacing exception. (Company Name) assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the SAMPLE Commission must be in no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Rev: 04/01/05 C\jody\transmittal_checklist WELL PERMIT CHECKLIST Field & Pool PRUDHOE BAY, PRUDHOE OIL - 640150 Well Name: PRUDHOE BAY UNIT 15-20C Program DEV Well bore seg ^ PTD#:2050930 Company BP EXPLORATION (ALASKA) INC Initial ClasslType DEV! 1.01E GeoArea 890 Unit 11650 OnlOff Shore On Annular Disposal ^ Administration 1 Permit_fee attached- - - - - - - - Ye$ - - - - - - - - - - 2 Lease number appropriate - - - - Yes - 3 Uniquewell_nameandnumber-- ----- -- ----- - -- --- - - Yes- -- -- -- -- -- --- -- - -- ------------------------------------------ 4 Well located in a_defined-pool_--___-___-_____-,_____-____--__- Yes_ _____-__-_ - - - 5 Well locatedproperdistanrefromdrillingunit_boundary-------------------_-_- Yes_ ____-__-__-__-___-__-______-_____-___ --_-__--__-__-_--______ __ 6 Well located proper distance from otherwells__.____- Yes_ _________________________-_-,__-_--__.__---_ - - 7 Sufficient acreage_availablein_drillingunit_______________________-__--__- Yes_ _-__-__._ - - - - 8 If deviated,is_wellboreplatincluded _________--_- _ ----------------- Yes- _-_--_-__-__-__-___._ -------------------------------------------------- 9 Operatoionlyaffectedparty_-_- _- -__-_ ______ - - Yes_ _____________ - - - - - 10 Operator has.appropriate.bondinforce-- --- -- ----- -- --- -- --- -- Yes- ---- --- - ------- -- ------- ------ -- ---- - -- --- - -- ------ --- 11 Permit_canbeissuedwithoutconseryationorder--_--____-____________ _ Yes_ __________________--._--__-__--_ - - Appr Date 12 Permit-can be issued without ad-minist[alive-app[oyal________________________ Yes_ --_____-___-_____-__-__,-_--__-__--__.__--_-_---_--_---__-_-_--__---_-_ RPC 6/16!2005 13 Can permit be approved before 15-day wait Yes 14 Well located within area and strata authorized 4y Injection Order # (put1O# in comments)-(For- NA_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ - _ - - - _ - - - - _ - _ - - - - - _ 15 All wells within 114_mil_earea ofreyiewidentified(Forservicewellonly)_______________ NA-_ _-______--_.---_-.---,----_-_-_--_-----_---__-._--__- -------------------- 16 Pre-produced injector; duration of pre production Less than.3 months_(For service well onty) - NA- - _ - _ _ - - _ . - - 17 ACMP-Finding of Consistency_has been issued_fg[this p[oject_ _ _ NA_ - _ _ - - - - - - - - Engineering 18 Conductorstring_provided-_____.__-__________________-__--__-- NA__ __--__----____,__- - - - - - 19 Surface casing-protectsall-knownUSDWs-------- ---------------- --- NA_ -__-__-_-_.___-_-_-________-_-------------------------- - 20 CMT-vol_adequate_tocirculateonconductor&surf-csg_____-___-_-_--__ NA-- ----------------------------------------------------_- 21 CMT_voladeguate_totie-in long string to surf csg______-__________--_ NA-- -----------_,-_-__-__--_-._ 22 CMT_willcoverallknownproductiyehorizon_s______--------------------- Yes_ _______--_--____-__--__---_-_--_---_---__-____--_- ------------------- 23 Casing designsadeq~ateforC,T~&_permafrost-------------------- - -- Yes- ---------.-----------------------------------------------.-----_- --- 24 Adequaietankage_or[eseryepit----________________________________ Yes_ ____-CTDU._____-_ --------------------------------------------------------- 25 If a_re-drill, hasa 1.0-403 for abandonment been approved - - - - - - - - - Yes - _ _ - -' - - - - 26 Adequatewellboreseparation_propgsed -- ------- - ------ ----- --- Yes- --- -- -- --------- - -------- - - --------- -- - -------- ----- 27 Ifdiverterrequired,doesitmeetregulations_________________________---__ NA__ ___-,Sidetrack._____________--__-__- Appr Date 28 Drillingfluid-programschematic&equiplistadequate_________________-__--_ Yes_ .__--MaxMW-8,6ppg.__-_-_-__-_____--__-___-_--,_ __-_--__-- ----_ WGA 6116!2005 29 BOPEs,dothe meet regulation- _______.__--_ y - - - Yes_ _-__--__-__-_--___-------------------_-__--_----_-----_-__-__.-_ _- 30 BOPE.press rating appropriate; test to_(put prig in comments)_ - . Yes Test to 3501) psi. _MSP 2373 psi._ - - _ - ---------------------------------------- 31 Choke_manifoldcomplieswlAPI_RP-53 (May84)_____________________ ______ Yes_ -___-__--_---____-.-_--_- ----------------------------------------------- 32 Work willoccu[withoutoperationshutdow_n_____________ _________________ Yes_ -._____________-___-_---- - - - 33 Ispresence-of H2Sgas-probable - - - - - - Yes - - 50 ppm on_pad. - - - - - - - - - 34 Mechanical condition of wells within AOR verified GFor-service well only) _ _ - _ - _ - - NA- _ _ _ . - - - - Geology 35 Permitcan be issued wlo hydrogen sul_fidemeasures - - No- _ , _ - - _ _ - - _ _ - _ - - 36 Data-presented on potential overpressure zones _ - _ - - - NA_ _ _ _ _ ---------------------------------------- -- Appr Date 37 Seismic analysis of shallpwgas-zones_ _ _ _ _ _ - - NA - -------------------------- - - RPC 6116/2005 38 Seabed condition suNey_(if off-shore) - - - - ~ - - - - - - - - - - - 39 -Contact namelphone-for_weeklyprogress-reports(exploratoryonly]________________ Np__ ___-- __--_--__--_- _-------_---__-_---_,-__--_--_- --- --_ - Geologic Engineering Public Commissioner: Date: Commissioner: Date Commissioner Date • • • Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the file under APPENDIX. No special-effort has been made io chronologically organize this category of information. Sperry-Sun Drilling Services LIS Scan Utility $Revision: 3 $ LisLib $Revision: 4 $ Mon Oct 03 14:54:50 2005 Reel Header Service name .............LISTPE Date .....................05/10/03 Origin ...................STS Reel Name ................UNKNOWN Continuation Number......01 Previous Reel Name.......UNKNOWN Comments .................STS LIS Writing Library. Tape Header Service name .............LISTPE Date .....................05/10/03 Origin ...................STS Tape Name ................UNKNOWN Continuation Number......01 Previous Tape Name.......UNKNOWN Comments .................STS LIS Writing Library Physical EOF Comment Record TAPE HEADER Prudhoe Bay MWD/MAD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: JOB NUMBER: LOGGING ENGINEER OPERATOR WITNESS MWD RUN 1 MW0003863474 B. JAHN T. EIDEN / J MWD RUN 4 MW0003863474 B. JAHN T. EIDEN / J MWD RUN 7 MW0003863474 S. LATZ T. EIDEN / J SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION (FT FROM MSL 0) s 131z~' X05-~~~ Scientific Technical Services Scientific Technical Services 15-20C 500292113303 PB Exploration (Alaska) Inc. Sperry Drilling Services 03-OCT-05 MWD RUN 2 MW0003863474 B. JAHN T. EIDEN / J MWD RUN 5 MW0003863474 B. JAHN T. EIDEN / J MWD RUN 8 MW0003863474 S. LATZ T. EIDEN / J 22 11N 14E 1410 1330 MWD RUN 3 MW0003863474 B. JAHN T. EIDEN / J MWD RUN 6 MW0003863474 B. JAHN T. EIDEN / J KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING RECORD 1ST STRING 2ND STRING 3RD STRING PRODUCTION STRING REMARKS: • OPEN HOLE BIT SIZE (IN) 4.125 57.83 CASING DRILLERS SIZE (IN) DEPTH (FT) 4.500 8436.0 • 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 POSITIONED IN THE 15-20B WELLBORE. THE TOP OF THE WHIPSTOCK WAS POSITIONED AT 8436'MD/8336'TVDSS. 4. MWD RUNS 1 - 8 COMPRISED DIRECTIONAL WITH NATURAL GAMMA RAY (PCG) UTILIZING SCINTILLATION DETECTORS. UPHOLE TIE-IN DATA WERE MERGED WITH RUN 1 MWD DATA. MWD RUN 7 MADE 6' OF PROGRESS - ONLY SROP DATA ARE PRESENTED; 6' OF RECORDED SGRD DATA WERE ACQUIRED ON MWD RUN 8. 5. MWD DATA ARE CONSIDERED PDC PER E-MAIL FROM D.DORTCH (SAIL/BP) DATED 9/29/05 QUOTING AUTHORIZATION FROM ROGER HURLEY. 6. MWD RUNS 1 - 8 REPRESENT WELL 15-20C WITH API$$: 50-029-21133-03. THIS WELL REACHED A TOTAL DEPTH (TD) OF 11580'MD/8746'TVDSS. SROP = SMOOTHED RATE OF PENETRATION WHILE DRILLING. SGRD = SMOOTHED NATURAL GAMMA RAY. File Header Service name .............STSLIB.001 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.000 Comment Record FILE HEADER FILE NUMBER: 1 EDITED MERGED MWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: .5000 FILE SUMMARY PBU TOOL CODE START DEPTH STOP DEPTH GR 8365.0 11542.5 ROP 8454.5 11580.0 BASELINE CURVE FOR SHIFTS: CURVE SHIFT DATA (MEASURED DEPTH) ----- ---- EQUIVALENT UNSHIFTED DEPTH - -------- BASELINE DEPTH MERGED DATA SOURCE PBU TOOL CODE BIT R UN NO MERGE TOP MERGE BASE MWD 1 8365.0 8580.0 MWD 2 8580.0 8593.0 MWD 3 8593.0 8883.0 MWD 4 8883.0 8900.0 MWD 5 8900.0 10640.0 MWD 6 10640.0 10993.0 MWD 7 10993.5 10999.0 MWD 8 10999.0 11580.0 REMARKS: MERGED MAIN PASS. Data Format Specification Record Data Record Type ..................0 Data Specification Block Type.....0 Logging Direction .................Down Optical log depth units...........Feet Data Reference Point ..............Undefined Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD FT/H 4 1 68 4 2 GR MWD API 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 8365 11580 9972.5 6431 8365 11580 ROP MWD FT/H 0.09 2079.24 74.9983 6252 8454.5 11580 GR MWD API 19.3 598.22 67.033 6307 8365 11542.5 First Reading For Entire File..........8365 Last Reading For Entire File...........11580 File Trailer Service name .............STSLIB.001 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 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.......05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.001 Comment Record FILE HEADER FILE NUMBER: 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 8365.0 8550.5 ROP 8454.5 8580.0 LOG HEADER DATA DATE LOGGED: 03-AUG-05 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT) 8580.0 TOP LOG INTERVAL (FT) 8454.0 BOTTOM LOG INTERVAL (FT) 8580.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 14.5 MAXIMUM ANGLE: 37.6 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER PCG Natural gamma ray TLG002 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) 4.125 DRILLER'S CASING DEPTH (FT) 2532.0 BOREHOLE CONDITIONS MUD TYPE: Flo Pro MUD DENSITY (LB/G) 8.60 MUD VISCOSITY (S) 65.0 MUD PH: 9.3 MUD CHLORIDES (PPM): 27000 FLUID LOSS (C3) 8.6 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) .000 .0 MUD AT MAX CIRCULATING TERMPERATURE: .000 124.8 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .0 NEUTRON TOOL MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): TOOL STANDOFF (IN): EWR FREQUENCY (HZ): REMARKS: Da ta Format Specification Record Data Record Type ..................0 Data Specification Block Type.....0 Logging Direction .................Down Optical log depth units...........Feet Data Reference Point ..............Undefined Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWDO10 FT/H 4 1 68 4 2 GR MWDO10 API 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 8365 8580 8472.5 431 8365 8580 ROP MWDO10 FT/H 0.28 948.67 49.9847 252 8454.5 8580 GR MWDO10 API 20.97 598.22 53.5991 323 8365 8550.5 First Reading For Entire File..........8365 Last Reading For Entire File...........8580 File Trailer Service name .............STSLIB.002 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 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.......05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.002 Comment Record FILE HEADER FILE NUMBER: 3 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 2 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 8551.0 8563.0 ROP 8580.5 8593.0 LOG HEADER DATA DATE LOGGED: 03-AUG-05 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA. TYPE (MEMORY OR REAL-TIME): TD DRILLER (FT) TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT): BIT ROTATING SPEED (RPM) HOLE INCLINATION (DEG MINIMUM ANGLE: MAXIMUM ANGLE: TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE PCG 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...0 Memory 8593.0 8580.0 8593.0 14.5 14.5 TOOL NUMBER TLG002 4.125 8436.0 Flo Pro 8.60 45.0 8.5 27000 5.4 .000 .0 .000 124.8 .000 .0 .000 .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD020 FT/H 4 1 68 4 2 GR MWD020 API 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 8551 8593 8572 85 8551 8593 ROP MWD020 FT/H 1.06 21.19 9.41961 26 8580.5 8593 GR MWD020 API 23.81 54.17 33.1952 25 8551 8563 • First Reading For Entire File..........8551 Last Reading For Entire File...........8593 File Trailer Service name .............STSLIB.003 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 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.......05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.003 Comment Record FILE HEADER FILE NUMBER: 4 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 3 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 8563.5 8852.5 ROP 8593.5 8883.0 LOG HEADER DATA DATE LOGGED: 04-AUG-05 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT) 8883.0 TOP LOG INTERVAL (FT) 8593.0 BOTTOM LOG INTERVAL (FT) 8883.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 20.2 MAXIMUM ANGLE: 75.3 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER PCG Natural gamma ray TLG015 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): 4.125 DRILLER'S CASING DEPTH (FT) 8436.0 BOREHOLE CONDITIONS MUD TYPE: Flo Pro MUD DENSITY (LB/G): 8.60 MUD VISCOSITY (S): 45.0 MUD PH: 8.5 MUD CHLORIDES (PPM): 27000 FLUID LOSS (C3) 5.4 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) .000 .0 MUD AT MAX CIRCULATING TERMPERATURE: .000 129.0 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .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.....0 Logging Direction .................Down Optical log depth units...........Feet Data Reference Point ..............Undefined Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD030 FT/H 4 1 68 4 2 GR MWD030 API 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 8563.5 8883 8723.25 640 8563.5 8883 ROP MWD030 FT/H 0.09 241.77 43.7191 580 8593.5 8883 GR MWD030 API 19.3 135.56 35.0672 . 579 8563.5 8852.5 First Reading For Entire File..........8563.5 Last Reading For Entire File...........8883 File Trailer Service name .............STSLIB.004 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 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.,.....05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.004 Comment Record FILE HEADER FILE NUMBER: 5 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 4 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 8853.0 8869.5 ROP 8883.5 8900.0 LOG HEADER DATA DATE LOGGED: 04-AUG-05 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT) 8900.0 TOP LOG INTERVAL (FT) 8883.0 BOTTOM LOG INTERVAL (FT) 8900.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 85.3 MAXIMUM ANGLE: 85.3 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER PCG Natural gamma ray TLG002 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) 4.125 DRILLER'S CASING DEPTH (FT) 8436.0 BOREHOLE CONDITIONS MUD TYPE: Flo Pro MUD DENSITY (LB/G) 8.70 MUD VISCOSITY (S) 65.0 MUD PH: 8.5 MUD CHLORIDES (PPM): 27000 FLUID LOSS (C3) 5.2 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) .000 .0 MUD AT MAX CIRCULATING TERMPERATURE: .000 133.3 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .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.....0 Logging Direction .................Down • Optical log depth units...........Feet Data Reference Point ..............Undefined Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD040 FT/H 4 1 68 4 2 GR MWD040 API 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 8853 8900 8876.5 95 8853 8900 ROP MWD040 FT/H 7.53 68.23 27.2962 34 8883.5 8900 GR MWD040 API 24.68 40.52 33.8159 34 8853 8869.5 First Reading For Entire File..........8853 Last Reading For Entire File...........8900 File Trailer Service name .............STSLIB.005 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 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.......05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.005 Comment Record FILE HEADER FILE NUMBER: 6 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 5 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 8870.0 10609.5 ROP 8900.5 10640.0 LOG HEADER DATA DATE LOGGED; 07-AUG-05 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): 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 BOTTOM) VENDOR TOOL CODE TOOL TYPE PCG 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 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 10640.0 8900.0 10640.0 69.5 94.3 • TOOL NUMBER TLG015 4.125 8436.0 Flo Pro 8.80 65.0 8.5 27000 4.6 .000 .0 .000 154.3 .000 .0 .000 .0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD050 FT/H 4 1 68 4 2 GR MWD050 API 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 8870 10640 9755 3541 8870 10640 ROP MWD050 FT/H 0.23 2079.24 77.2388 3480 8900.5 10640 GR MWD050 API 20.25 195.76 71.9403 3480 8870 10609.5 First Reading For Entire File..........8870 Last Reading For Entire File...........10640 File Trailer Service name .............STSLIB.006 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 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.......05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.006 Comment Record FILE HEADER • FILE NUMBER: 7 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 6 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 10610.0 10962.0 ROP 10640.5 10993.0 LOG HEADER DATA DATE LOGGED: 31-AUG-0.5 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT) 10993.0 TOP LOG INTERVAL (FT) 10640.0 BOTTOM LOG INTERVAL (FT) 10993.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 89.5 MAXIMUM ANGLE: 97.0 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER PCG Natural gamma ray 033 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) 4.125 DRILLER'S CASING DEPTH (FT): 8436.0 BOREHOLE CONDITIONS MUD TYPE: Flo Pro MUD DENSITY (LB/G): 8.60 MUD VISCOSITY (S): 43.0 MUD PH: 9.0 MUD CHLORIDES (PPM): 22000 FLUID LOSS (C3) 5.6 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) .000 .0 MUD AT MAX CIRCULATING TERMPERATURE: .000 158.6 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .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.....0 Logging Direction .................Down Optical log depth units...........Feet Data Reference Point ..............Undefined Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD060 FT/H 4 1 68 4 2 GR MWD060 API 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10610 10993 10801.5 767 10610 10993 ROP MWD060 FT/H 0.49 228.62 63.3288 706 10640.5 10993 GR MWD060 API 42.37 209.36 66.2962 705 10610 10962 First Reading For Entire File..........10610 Last Reading For Entire File...........10993 File Trailer Service name .............STSLIB.007 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 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.......05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.007 Comment Record FILE HEADER • FILE NUMBER: 8 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 7 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH ROP 10993.5 10999.0 LOG HEADER DATA DATE LOGGED: 09-AUG-05 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT) 10999.0 TOP LOG INTERVAL (FT) 10993.0 BOTTOM LOG INTERVAL (FT) 10999.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 86.3 MAXIMUM ANGLE: 86.3 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE TOOL NUMBER PCG Natural gamma ray TLG015 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) 4.125 DRILLER'S CASING DEPTH (FT) 8436.0 BOREHOLE CONDITIONS MUD TYPE: Flo Pro MUD DENSITY (LB/G) 8.70 MUD VISCOSITY (S) 65.0 MUD PH: 8.5 MUD CHLORIDES (PPM): 23000 FLUID LOSS (C3) 5.6 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) .000 .0 MUD AT MAX CIRCULATING TERMPERATURE: .000 162.0 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .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.....0 Logging Direction .................Down Optical log depth units...........Feet Data Reference Point ..............Undefined • Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD070 FT/H 4 1 68 4 2 • First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10993.5 10999 10996.3 12 10993.5 10999 ROP MWD070 FT/H 20.7117 25.46 23.0858 12 10993.5 10999 First Reading For Entire File..........10993.5 Last Reading For Entire File...........10999 File Trailer Service name .............STSLIB.008 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 Maximum Physical Record..65535 File Type ................LO Next File Name...........STSLIB.009 Physical EOF File Header Service name .............STSLIB.009 Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 Maximum Physical Record..65535 File Type ................LO Previous File Name.......STSLIB.008 Comment Record FILE HEADER FILE NUMBER: 9 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUMBER: 8 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH STOP DEPTH GR 10962.5 11542.5 ROP 10999.5 11580.0 LOG HEADER DATA DATE LOGGED: 10-AUG-05 SOFTWARE SURFACE SOFTWARE VERSION: Insite DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY OR REAL-TIME): Memory TD DRILLER (FT): 11580.0 TOP LOG INTERVAL (FT) 10999.0 BOTTOM LOG INTERVAL (FT) 11580.0 BIT ROTATING SPEED (RPM): HOLE INCLINATION (DEG MINIMUM ANGLE: 82.4 MAXIMUM ANGLE: 95.1 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE- TOOL TYPE TOOL NUMBER PCG Natural gamma ray TLG015 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN) 4.125 DRILLER'S CASING DEPTH (FT) 8436.0 BOREHOLE CONDITIONS MUD TYPE: Flo Pro MUD DENSITY (LB/G) 8.60 MUD VISCOSITY (S) 65.0 MUD PH: 9.0 MUD CHLORIDES (PPM): 24000 FLUID LOSS (C3) 7.4 RESISTIVITY (OHMM) AT TEMPERATURE (DEGF) MUD AT MEASURED TEMPERATURE (MT) .000 .0 MUD AT MAX CIRCULATING TERMPERATURE: .000 167.0 MUD FILTRATE AT MT: .000 .0 MUD CAKE AT MT: .000 .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.....0 Logging Direction .................Down Optical log depth units...........Feet Data Reference Point ..............Undefined Frame Spacing .....................60 .lIN Max frames per record .............Undefined Absent value ......................-999 Depth Units ....................... Datum Specification Block sub-type...0 Name Service Order Units Size Nsam Rep Code Offset Channel DEPT FT 4 1 68 0 1 ROP MWD080 FT/H 4 1 68 4 2 GR MWD080 API 4 1 68 8 3 First Last Name Service Unit Min Max Mean Nsam Reading Reading DEPT FT 10962.5 11580 11271.3 1236 10962.5 11580 ROP MWD080 FT/H 1.71 1641.15 99.8151 1162 10999.5 11580 GR MWD080 API 46.5 154.86 74.1515 1161 10962.5 11542.5 First Reading For Entire File..........10962.5 Last Reading For Entire File...........11580 File Trailer -- -~ Service name .............STSLIB.009 • Service Sub Level Name... Version Number...........1.0.0 Date of Generation.......05/10/03 Maximum Physical Record..65535 File Type ................LO Next File Name...........STSLIB.010 Physical EOF Tape Trailer Service name .............LISTPE Date .....................05f10j03 Origin ...................STS Tape Name ................UNKNOWN Continuation Number......01 Next Tape Name...........LTNKNOWN Comments .................STS LIS Writing Library. Scientific Technical Services Reel Trailer Service name .............LISTPE Date .....................05/10/03 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