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Home My WebLink About202-046Suspended Well Inspection Review Report Reviewed By: P.I. Suprv Comm ________ JBR 07/26/2024 InspectNo:susRCN240619193330 Well Pressures (psi): Date Inspected:6/17/2024 Inspector:Bob Noble If Verified, How?LAT / LONG Suspension Date:3/31/2002 #302-385 Tubing:100 IA:400 OA:200 Operator:Hilcorp North Slope, LLC Operator Rep:Andy Ogg Date AOGCC Notified:6/16/2024 Type of Inspection:Subsequent Well Name:PRUDHOE BAY UNIT Y-37A Permit Number:2020460 Wellhead Condition Lines Blinded, No leaks or drips, Master was closed. Gauges installed. Wellhouse installed. Surrounding Surface Condition Good clean gravel. Condition of Cellar Clean ice and water. Comments Supervisor Comments Photos (5) attached Suspension Approval:Sundry Location Verified? Offshore? Fluid in Cellar? Wellbore Diagram Avail? Photos Taken? VR Plug(s) Installed? BPV Installed? Friday, July 26, 2024         2024-0617_Suspend_PBU_Y-37A_photos_bn Page 1 of 3 Suspended Well Inspection – PBU Y-37A PTD 2020460 AOGCC Inspection Rpt # susRCN240619193330 Photos by AOGCC Inspector B. Noble 6/17/2024 2024-0617_Suspend_PBU_Y-37A_photos_bn Page 2 of 3 2024-0617_Suspend_PBU_Y-37A_photos_bn Page 3 of 3 7. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU Y-37A Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 202-046 50-029-22403-01-00 12225 Conductor Surface Intermediate Production Liner 8979 80 3340 10621 160 9651 20" 10-3/4" 7-5/8" 5-1/2" 7951 33 - 113 32 - 3372 30 - 10651 10491 - 10651 33 - 113 30 - 8867 8715 - 8867 9315 470 4790 6280 9651 1490 6890 7740 None 4-1/2" 12.6# 13Cr80 27 - 10493 Structural 4-1/2" Baker SABL-3 Packer 10428 8655 Torin Roschinger Operations Manager Andy Ogg andrew.ogg@hilcorp.com 907-659-5102 PRUDHOE BAY, PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028287, 0047471 27 - 8716 N/A N/A 250 400 0 100 N/A 13b. Pools active after work:PRUDHOE OIL No SSSV Installed 10428. 8655 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations By Grace Christianson at 8:57 am, Jun 25, 2024 Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.06.25 04:37:21 - 08'00' Torin Roschinger (4662) RBDMS JSB 062724 DSR-6/26/24WCB 9-10-2024 ACTIVITY DATE SUMMARY 6/17/2024 T/I/O = 100/400/200. Temp = SI. AOGCC suspended well inspection. State witnessed by Bob Noble. Pictures taken. MV = LOTO. IA, OA = OTG. 8:45 Daily Report of Well Operations PBU Y-37A AOGCC suspended well inspection. State witnessed by Bob Noble. Pictures taken. Operator Name:2. Development Exploratory Service 5 Permit to Drill Number:202-046 6.50-029-22403-01-00 PRUDHOE BAY, PRUDHOE OIL BP Exploration (Alaska), Inc 5. Well Name and Number:8. 10.Field/Pools: Well Class Before Work4. Present Well Condition Summary:11. Total Depth: measured feet feet Plugs measured feet feet Effective Depth: measured feet feet Packer measured feet feettrue vertical true vertical 12225 9651 7951 10428 9315 9651 8655 Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20" 33 - 113 33 - 113 1490 470 Surface 3339 10-3/4" 33 - 3372 33 - 3228 5210 2480 Intermediate 10621 7-5/8" 30 - 10651 30 - 8867 6890 4790 Production Perforation Depth: Measured depth: None feet True vertical depth: feet Tubing (size, grade, measured and true vertical depth)4-1/2" 12.6# 13Cr80 27 - 10493 27 - 8716 10428 8655Packers and SSSV (type, measured and true vertical depth) 4-1/2" Baker SABL-3 Packer Liner 160 5-1/2" 10491 - 10651 8715 - 8867 7740 6280 12. Stimulation or cement squeeze summary: Intervals treated (measured): Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure Suspended Representative Daily Average Production or Injection Data Prior to well operation: Subsequent to operation: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Name: Contact Email: Sternicki, Oliver R Oliver.Sternicki@bp.com Authorized Name:Lastufka, Joseph N Authorized Title: Authorized Signature with Date:Contact Phone:+1 907 564 4301 Treatment descriptions including volumes used and final pressure: 13. SIM Specialist Operations Performed1. Abandon Plug Perforations Fracture Stimulate Pull Tubing GSTOR WINJ WAG GINJ SUSP 5 SPLUG 16. Well Status after work:Oil Gas Exploratory Development 5 Stratigraphic 15. Well Class after work: Service WDSPL 14. Attachments: (required per 20 AAC 25.070.25.071, & 25.283) Daily Report of Well Operations Copies of Logs and Surveys Run true vertical measured8979 Sundry Number or N/A if C.O. Exempt: 320-235 Junk Packer Printed and Electronic Fracture Stimulation Data Renew Suspension Operations shutdown Change Approved Program 5 Senior Pet Engineer:Senior Res. Engineer: STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Suspend Perforate Other Stimulate Alter Casing Plug for Redrill Perforate New Pool Repair Well Re-enter Susp Well 3.Address: P.O. Box 196612 Anchorage, AK 99519-6612 7.Property Designation (Lease Number):ADL 028287 & 047471 PBU Y-37A 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): Stratigraphic Other: API Number: Form 10-404 Revised 03/2020 Submit Within 30 days of Operations By Samantha Carlisle at 8:29 am, Jun 19, 2020 Joseph N Lastufka Digitally signed by Joseph N Lastufka Date: 2020.06.18 16:43:03 -08'00' RBDMS HEW 6/19/2020 MGR26JUN20 DSR-6/22/2020 SFD 6/22/2020 Operator Name:2. Exploratory Development Service 5 Permit to Drill Number:202-046 6.API Number:50-029-22403-01-00 PRUDHOE BAY, PRUDHOE OIL BP Exploration (Alaska), Inc 5. Field/Pools:9. Well Name and Number: ADL 047471 Property Designation (Lease Number):10. 8. PBU Y-37A 7.If perforating: What Regulation or Conservation Order governs well spacing in this pool? Will planned perforations require a spacing exception? Stratigraphic Current Well Class:4. Type of Request:1.Abandon Plug Perforations Fracture Stimulate Repair Well Operations shutdown Renew Suspension Op Shutdown GAS GSTORWAG SPLUG Abandoned Oil WINJ Exploratory Development 5StratigraphicService WDSPL 12. Attachments: PRESENT WELL CONDITION SUMMARY 12225 Effective Depth MD: 13Cr80 11. June 30, 2020 Commission Representative: 15. Suspended 5 Contact Name: Mcmullen, John C Contact Email: John.McMullen@bp.com Authorized Name: Mcmullen, John C Authorized Title:Well Interventions Superintendent Special Projects Authorized Signature: Plug Integrity BOP Test Mechanical Integrity Test Location Clearance Other: Yes No Spacing Exception Required?Subsequent Form Required: Approved by:COMMISSIONER APPROVED BYTHE COMMISSION Date: 5OtherAlter Casing Pull Tubing Conditions of approval: Notify Commission so that a representative may witness Sundry Number: COMMISSION USE ONLY 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approval. Detailed Operations Program Packers and SSSV Type: No SSSV Installed Packers and SSSV MD (ft) and TVD (ft): Perforation Depth MD (ft):Tubing Size: Size Total Depth MD (ft):Total Depth TVD(ft): 8979 Effective Depth TVD:Plugs (MD):Junk (MD): Other Stimulate Re-enter Susp Well Suspend Plug for Redrill Perforate Perforate New Pool 10428 / 8655 No SSSV Installed Date: Liner 160 5-1/2" 10491 - 10651 8715 - 8867 7740 6280 Well Status after proposed work: 16. Verbal Approval: Change Approved Program 33 - 3372 33 - 3228 14. Estimated Date for Commencing Operations: BOP Sketch 33 - 113 Structural 6890 Proposal Summary 13. Well Class after proposed work: 4-1/2" Baker SABL-3 Packer None 4-1/2" 12.6#27 - 10493 Production 9651 7951 9651 9315 33 - 113 470 10-3/4" 7-5/8" Contact Phone:+1 9075644711 Date: 4790 80 149020"Conductor 2480 GINJ 5 Post Initial Injection MIT Req'd? Yes No 5 Comm. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Surface 3339 5210 Intermediate 10621 30 - 10651 30 - 8867 Address:P.O. Box 196612 Anchorage, AK 99519-6612 3. No 5Yes Casing Length MD TVD Burst Tubing Grade:Tubing MD (ft):Perforation Depth TVD (ft): Collapse MPSP (psi): Wellbore Schematic Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 03/2020 Approved application is valid for 12 months from the date of approval. By Samantha Carlisle at 2:20 pm, Jun 02, 2020 320-235 Mcmullen, John C Digitally signed by Mcmullen, John C Date: 2020.06.02 13:25:18 -08'00' DLB 6/3/2020 ; ADL 0028287 (Surface) DLB X DSR-6/2/2020 10-404 MGR12JUN20 *Per 20 AAC 25.110 Suspended Wells: (e) Next inspection shall be conducted 24 months before September 30, 2025. *Variance request to 20 AAC 25.110 Suspended Wells (c) is approved Yes Required? C 6/15/2020 dts 6/15/2020 JLC 6/15/2020 RBDMS HEW 6/16/2020 BP Exploration (Alaska) Inc. John McMullen., BPXA Well Integrity and Interventions Manager Post Office Box 196612 Anchorage, Alaska 99519-6612 May 26, 2020 Mr. Jeremy Price Alaska Oil and Gas Conservation Commission 333 West 7th Avenue Anchorage, Alaska 99501 Subject: Prudhoe Bay Well Y-37A (PTD #202046) Application for Renewal of Existing Suspension (10-403) Dear Mr. Price, BP Exploration (Alaska) Inc. completed an AOGCC witnessed suspended well inspection of Prudhoe Bay Unit well Y-37A on 09/15/2019 (20 AAC 25.110 (h). This recently submitted suspended well inspection reflects the current condition of the well (reference 20 AAC 25.110 (f)) and supports the request for renewal of suspension. Recent events from this well indicate that this well is mechanically sound. Specific attachments include: x Wellbore diagram illustrating the current configuration of the well x Suspended Well Site Inspection form documenting the pressures and site condition Prudhoe Bay Unit well Y-37A was suspended on 03/31/2002. It is located on a pad with active wells and/or service wells. The strata through which the well was drilled is neither abnormally geopressured or depleted. The well is mechanically sound and secured with the top of cement at 10650’ in the 5-1/2” tubing and 9651’ in the 2-3/8” coil. Based on these conditions and the inspection on 09/15/2019 Prudhoe Bay Unit well Y- 37A meets the provisions required in 20 AAC 25.110 (a)(1). BPXA requests approval for renewal of the existing suspension status for this well. Attached is an Application for Sundry Approval (10-403) with a technical justification summarizing the information on the current status and condition of the well (reference 20 AAC 25.110 (a), (b), (e), (h)). In summary, BPXA believes Prudhoe Bay well Y-37A is mechanically sound and secure and meets the requirements for renewal of suspended status. If you have any questions, please call me at 529-9129 or Ryan Holt/ Andrew Ogg at 659-5102. Sincerely, John McMullen BPXA Well Integrity and Interventions Manager Attachments Technical Justification 2019 Suspended Well Site Inspection form Wellbore Schematic Prudhoe Bay Well Y-37A (PTD #202046) Technical Justification for Renewal of Suspended Status May 26, 2020 Well History and Status Prudhoe Bay Unit well Y-37A (PTD #202046) was suspended on 03/31/2002 after a failed coil tubing sidetrack attempt. Coiled tubing parted at surface and was partially cemented in place during an operation to lay in a 7 barrel kickoff plug. After fishing operations ended, 2135' of 2-3/8" coil tubing/BHA were left in the well. The top of the fish is located at 9315' MD, the kick-off point is at 10651' MD. The coil tubing fish is cemented from 11450' back through the window to 10650' and cement was also left within the CT fish. The well is mechanically sound as proven on 02/28/2002 when a pre-CTD rig MIT-IA was performed to 2500 psi, as well as the cemented coil fish with cement from 11450' back through the window at 10650'. The well will not allow the migration of fluids, will not damage freshwater or producing or potentially producing formations, will not impair the recovery of oil or gas, and is secure, safe, and not a threat to public health. The strata through which the well was drilled is neither abnormally geo-pressured or depleted. Condition of the Wellhead and Surface Location Prudhoe Bay Unit well Y-37A is located on an active, well maintained pad with clean gravel. The pit and surrounding area are in good condition. There is no discoloration and no sheens on the pad, pits, or in nearby water. The well pressure readings are T/I/O = -/250/200 psi. Request BPXA requests approval for renewal of the existing suspension status for Y-37A. A variance to the provisions of 20 AAC 25.110 (c) (2) is also requested under 20 AAC 25.112 (i) to allow the well to remain as suspended in its current condition. All hydrocarbon intervals are isolated and there are no underground sources of fresh water in this area. F,' -I, STATE OF ALASKA ! ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations Performed '... Abandon ❑ Plug Perforations ❑ Fracture Stimulate ❑ Pull Tubing ❑ Operations shutdown ❑ Suspend ❑ Perforate ❑ Other Stimulate ❑ Alter Casing ❑ Change Approved Program ❑ Plug for Rednll ❑ Perforate New Pool ❑ Repair Well ❑ Re-enter Susp Well ❑ Other: Suspend Inspection 0 2. Operator Name: BP Exploration (Alaska), Inc 4. Well Class Before Work Development 171 Exploratory ❑ 5. Permit to Drill Number 202-046 3. Address: P.O. Box 196612 Anchorage, AK 99519-5512 Stratigraphic ❑ Service ❑ 1 6. API Number: 50-029-22403-01-00 7. Property Designation (Lease Number): ADL 047471 8. Well Name and Number: PBU Y -37A 9. Logs (List logs and submit electronic and printed data per 20AAC25.071): 10. Field/Pools: PRUDHOE BAY, PRUDHOE OIL 11. Present Well Condition Summary: Total Depth: measured 12225 feet Plugs measured 9651 feet true vertical 8979 feet Junk measured 9315 feet Effective Depth: measured 9651 feet Packer measured 10428 feet true vertical 7951 feet Packer true vertical 8655 feet Casing: Length: Size: MD: TVD: Burst: Collapse: Structural Conductor 80 20" 33-113 33-113 1490 470 Surface 3339 10-3/4" 33-3372 33-3228 5210 2480 Intermediate 10621 7-5/8" 30-10651 30-8867 6890 4790 Production Liner 160 5-1/2" 10491 - 10651 8715-8867 7740 6280 Perforation Depth: Measured depth: None feet True vertical depth: feet Tubing (size, grade, measured and true vertical depth) 4-1/2" 12.6# 13Cr80 27-10493 27-8716 Packers and SSSV (type, measured and 4-112" Baker SABL-3 Packer 10428 8655 true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13. Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Suspended Subsequent to operation: 14. Attachments: (required per 20 nec 25 070.25 071, &25 283) 15. Well Class after work: Daily Report of Well Operations Rl Exploratory ❑ Development 71 Service ❑ Stratigraphic ❑ Copies of Logs and Surveys Run ❑ 16. Well Status after work: Oil ❑ Gas ❑ WDSPL ❑ Printed and Electronic Fracture Stimulation Data ❑ GSTOR ❑ WINJ ❑ WAG ❑ GINJ ❑ SUSP 9 SPLUG ❑ 17. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: N/A Authorized Name. Lastufka, Joseph N Contact Name: Montgomery, Travis J Authorized Title: (21 IM Speci Contact Email: Travis. Montgomery(o]bp.com Authorized Signature: Date: IQ (aContact Phone: +1 907 564 4127 Form 10-404 Revised 04/2017 /l#1v1,/i '11;wy " 3BDMS_L1f0OCT 1 12019 Submit Original Onty Daily Report of Well Operations PBU Y -37A 3/30/2019 T/1/0=35/250/200 LTT master valve passed T/I/O = SSV/250/200. Temp = SI. AOGCC SU Inspection (Regulatory Compliance). State witnessed by Jeff Jones. Pictures taken. Will need to stop by and remove a thermal blanket, wood, and electrical bands from inside and around well house. 9/15/2019 MV = LOTO. IA, OA = OTG. 09:00 Suspended Well Site Inspection Form Initial Inspection Notify AOGCC Inspectors at least 10 days prior to inspection to allow witness Well Name: Y -37A Field/Pool: Prudhoe Bay/ Prudhoe Oil Permit # (PTD): 2020460 API Number: 50-029-22403-01 Operator: BP EXPLORATION (ALASKA) INC Date Suspended: 3/31/2002 Surface Location: Section: 33 Twsp: 11N Range: 13E Nearest active pad or road: Y access road Take to Location Digital camera Brief well history Latest Sundry or Completion report Past Site Visit documentation Pressure gauges, fittings, tools Map showing well location /Aerial photos Wellbore diagram showing downhole condition Site clearance documentation Sample containers for fluids on or near pad Condition of Surface Location AOGCC requires: 1) a description of the condition of the surface location, including discoloration, fluids or sheens visible on the ground or in any nearby water, 2) photographs showing the condition of the location surrounding the well General location condition: Pad or location surface: —('-I e Location cleanup needed: Pits condition: Surrounding area conditic Water/fluids on pad: Discoloration, Sheens on Samples taken: None Photographs taken (# and Condition of Wellhead AOGCC requires: 1) a description of the condition of the wellhead, 2) well pressure readings, where practicable, 3) photographs showing the wellhead condition Wellhead/tree/valve description, condition:; Cellar description, condition Rat Hole: Wellhouse or protectivd bar Well identification sign: Tubing Pressure (or casing Annulus pressures: Wellhead Photos taken (# a Work Required: None fluids: Operator Rep (name an signature): Josh Prowant��%< AOGCC Inspector: �P-(_ Other Oo rvers: Inspection Date: 9/11/2019 AOGCC Notice Date: Time of arrival: / 14 a 6 Time of Departure: Site access method: Access road 9/13/2019 ■ :Ajaa - 1, 46- 3$ _ Y-23 1 23APE1 1 - , — 28Y -17A A A-07 25 — Y-0,9-':� Y-04 , ! - 02 —_ Y-15 (% A -29A Y-08APB1 Y -03A X�2AP61 t:-Y:15A A=11 Y-02A:�Y-19A I ,. A25LII A4:12A A-WU PBS r A -2y. Q C 1=19 A AA3 .� "Y-31 I AD'�- Y-- -_._. S A 39A C A-10 C Y-19 Y-23 C A-33 A DAD Y31) 1 C PR331113 " �Y;09ACvh ._ -30LI a Y-07 X26 Y-17BPB1a5 M I Y -11H -''' -12 _A05 - - v,34 -'Y+3A -13APE:1 C Y -11A .. i 6 A-14 14 .� Y -2,4A Y-71 ,=. Y 14 Y-10BP j A-40 C Y -14C '..°1-10BPB1 Y -14E 'Y-16 82 � Y-85 Y-95 A -05A Y-37 A-15 Y --21.A Y-08APB1�, 18P81 Y-21 Y-37AP81 ' Y-09AP - '... Y-3"1 I Y-05SPB1 C -A418 - 'Y 5A C-- X21B _ _ Y -05B � � Yj-0SAP82 Y -11C ( Y J Y -U8 4, PLAGHNI l + A - 2. (7l A -16A 6 A-37 C YK32 Cf .. -32L7 V -G4 A_ A38LI ! ( GETTY-01 A M8. l PB1 ii Y -29A i Y-09AL1 f A-33 C Y -09A Y -20A pY-09AL1-01 TRFF= 4-1/1R"S1u1!M/ 120^ CONDUCTOR, 91.50, H-40, ID =19.124" —t 113' 10-3/4" CSG, 45.5#, NT -80 BUTT, D = 9.950" 3372` L2-318" inimum ID = FISH @ 9315' CHEM CUT CQIL TBG 1 I OP OF 2-3/8^ COL TBG FISH, 4.45#, FF90 I GUUE TOOL SEr ON COL 4-1/2 GFN (INCH) 9327' SAFETYNOTES: DURINGY-37ASOTRKOPS, —2135' OF2-3/8" COIL TBG! BHA WAS LEFT IN WELL AFTER COIL PARTED. TOP OF FISH @ 9315' (CHEM CUT). BTM OF FISH @ 11450'.' SEE CTD REPORTS FOR ADDITIONAL INFO. 4-12" TBG, 12.6#, 13CR NSCT, .0152 bpf, ID=3.958" I TOP OF 5-12^ LNR I 5/8" CSG SF1DE 10630 O 5-12" LNR, 17#, 13CR-80 NSCC, I —10650 0232 bpf, D=4.892" Y 3 7A SAFETY NOTES: WELL ANGLE> 700 @ 10780' *** 4-12" CHROME TBG & 5-12" CHROME LNR *** COIL TBG RSH IN HOLE @ 9315'. SEE SAFETY SUSPENDED BOX BELOW FOR DETAILS. 7-518" CSG, 29.7#, NT-95HS NSCC, ID =6.875^ 10651' - PERFORATION SLINTMRY Rff LOG: ANGLE AT TOP PERF: Note: Refer to Production DB for historical perf data 4-1/2"OTIS SSSV NIP, ID=3.813" GAS LFT MAN RB -S 6 5M FMC 5031 fALELSON P 79.1' BK 49.43' 08/03/13 2100' Max Angle = 97-0 11861' Dahxn MD= 10663' Datum TVD = 8800' SS 120^ CONDUCTOR, 91.50, H-40, ID =19.124" —t 113' 10-3/4" CSG, 45.5#, NT -80 BUTT, D = 9.950" 3372` L2-318" inimum ID = FISH @ 9315' CHEM CUT CQIL TBG 1 I OP OF 2-3/8^ COL TBG FISH, 4.45#, FF90 I GUUE TOOL SEr ON COL 4-1/2 GFN (INCH) 9327' SAFETYNOTES: DURINGY-37ASOTRKOPS, —2135' OF2-3/8" COIL TBG! BHA WAS LEFT IN WELL AFTER COIL PARTED. TOP OF FISH @ 9315' (CHEM CUT). BTM OF FISH @ 11450'.' SEE CTD REPORTS FOR ADDITIONAL INFO. 4-12" TBG, 12.6#, 13CR NSCT, .0152 bpf, ID=3.958" I TOP OF 5-12^ LNR I 5/8" CSG SF1DE 10630 O 5-12" LNR, 17#, 13CR-80 NSCC, I —10650 0232 bpf, D=4.892" Y 3 7A SAFETY NOTES: WELL ANGLE> 700 @ 10780' *** 4-12" CHROME TBG & 5-12" CHROME LNR *** COIL TBG RSH IN HOLE @ 9315'. SEE SAFETY SUSPENDED BOX BELOW FOR DETAILS. 7-518" CSG, 29.7#, NT-95HS NSCC, ID =6.875^ 10651' - PERFORATION SLINTMRY Rff LOG: ANGLE AT TOP PERF: Note: Refer to Production DB for historical perf data 4-1/2"OTIS SSSV NIP, ID=3.813" GAS LFT MAN RB -S 6 5767 5031 44 KBMG DMY BK 0 08/03/13 5 7685 6410 42 KBMG DMY BK 0 0228/02 4 9042 7454 38 KBMG OMY BK 0 0228/02 3 10056 8308 25 KBMG DMY BK 0 02/28/02 2 10201 8441 21 KBMG DMY BK 0 0228/02 1 10306 8540 20 KBMG DMY BK 0 0228/02 9651' HTOP OF CEMENT IN 23/8" COIL 7 1!313" f-14-1/2' PARKER SWS NIP, ID 3.813" 10428' 7-5/8" X 4-1/2' BKR SABL-3 PKR, ®= 3.937" - 10459' 4-112' PARKER SWS NP, ID 3.813" 10477 4-112' SINN NP,MLL'D TO 3.80" (03/15/02) 10493' a-12^ WLEG, 0= 3.x58^ 10463'ELMD TT LOGGED 11/10/93 10503' 7-5/8" X 5-12" BKR CTP, TEBACK SLV PJC DRAWNGCORRECTIONS & LNRHGR, O=? 5-1/2" MLLOUT WINDOW (Y -37A) 10651'-10658- 1 DATE REV BY COMMENTS DATE REV BY COMMENTS laI31193 N1BE ORIGINAL COMPLETION 05/03/11 MB/JMD SUSPENDED(03)31/02) 03/31102 N3S CTD SIDETRACK(SUSPENDE_D 05/06H1 PJC DRAWNGCORRECTIONS 04/02102 CFI/TP CORRECTIONS 08/16/13 STF/JMD GLV C/O 08/03/13 0624/02 JM/KAK SETGUIDE TOOL 10/08/19 DDIJMD ADD OKB, BF, & COND OEPTF OSiO3l11 JMD GLV C/0(0420/02) 10/10/19 JNUJMD MINOR DEPTH EDITS 11450' 1-a BTM OF CT FISH I3-3/4" OPEN HOLE TD I PRUDHOE BAY UNIT WELL: Y -37A PERMrr No: '2020460 AN No: 50-029-22403-01 T11 N, R1 3E 1425' FNL 8,276- FEL • • bp BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Anchorage, Alaska 99519 -6612 December 20, 2010 �� JAN "/ 4 �� Mr. Tom Maunder Alaska Oil and Gas Conservation Commission 0 01 333 West 7 Avenue Anchorage, Alaska 99501 f� .:. ()t [AIM C :a4Slon Subject: Corrosion Inhibitor Treatments of GPB Y Pad Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from Y Pad that were treated with corrosion inhibitor in the surface casing by conductor annulus. The corrosion inhibitor is engineered to prevent water from entering the annular space and causing external corrosion that could result in a surface casing leak to atmosphere. The attached spreadsheet represents the well name, API and PTD numbers, top of cement depth prior to filling and volumes of corrosion inhibitor used in each conductor. As per previous agreement with the AOGCC, this letter and spreadsheet serve as notification that the treatments took place and meet the requirements of form 10 -404, Report of Sundry Operations. If you require any additional information, please contact me or my alternate, Jerry Murphy, at 659 -5102. Sincerely, Torin Roschinger BPXA, Well Integrity Coordinator • • • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) Date: 12/20/10 • Corrosion Well Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ Name PTD # API # cement pumped cement date inhibitor sealant date ft bbls ft na gal Y -01B 2010760 50029203940200 NA 2.5 NA 8.50 4/11/2010 Y -02A 2011730 50029203950100 NA 0.1 NA 0.85 4/11/2010 Y -03A 2042350 50029204110100 NA 2.2 NA 18.70 4/16/2010 Y -04 1791050 50029204230000 NA 1 NA 5.10 4/11/2010 Y -05B 2081380 50029204360200 NA 3.3 NA 20.40 4/15/2010 Y -06A 2042510 50029204310100 NA 0.7 NA 3.40 4/16/2010 Y -07A 2071050 50029205600100 14.5 2.0 0.3 NA 1.70 8/4/2010 Y -08A 1880560 50029205720100 NA 4 NA 15.30 8/5/2010 Y -09A 1970830 50029205790100 19 1.5 3.6 NA 17.00 8/4/2010 Y -10A 2042500 50029205870100 19 3.0 8.75 NA 54.40 8/6/2010 Y -11C 2051640 50029205130300 NA 0.1 NA 0.90 4/14/2010 Y -13 1811120 50029206340000 NA _ 0.4 NA 3.40 4/15/2010 Y -14B 2011010 50029218320200 NA 3.8 NA 20.40 4/10/2010 Y -15A 2010890 50029209400100 NA 2.1 NA 11.90 4/10/2010 Y -16 1830490 50029209320000 18.8 2.0 1.7 NA 10.20 8/4/2010 Y -18 1830290 50029209160000 NA 0.8 NA 5.10 4/9/2010 Y -19 1880960 50029218570000 NA 0.2 NA 0.85 4/15/2010 Y -20A 2010250 50029215870100 NA 1.5 NA 11.90 4/14/2010 Y -21A 1950370 50029215740100 NA 0.1 NA 1.70 4/13/2010 Y -22A 1881150 50029215580100 NA 0.5 NA 3.40 8/4/2010 Y -23B 2031640 50029215900200 NA 1.2 NA 6.80 4/13/2010 Y -24 1861130 50029216080000 NA 1 NA 6.80 4/12/2010 Y -25A 2081400 50029218830100 NA 0.3 NA 1.70 4/18/2010 Y -26A 2010430 50029221910100 NA 0.3 NA 1.70 4/15/2010 Y -27 1900280 50029220190000 NA 0.5 NA 3.40 4/14/2010 Y -28 1910650 50029221690000 NA 3.5 NA 28.90 4/12/2010 Y -29A _1960910 50029221230100 NA 0.2 NA 1.70 4/13/2010 Y -30 1910150 50029221350000 NA 0.5 NA 2.60 4/13/2010 Y -31 1910560 50029221610000 NA 0.5 NA 3.40 4/12/2010 Y -32 1910410 50029221490000 NA 0.3 _ NA 1.70 4/18/2010 Y -33 1910300 50029221440000 NA 0.9 NA 6.80 4/12/2010 Y -34A 1990040 50029221780100 NA 0.9 NA 5.10 4/11/2010 Y -35A 2022370 50029221860100 NA 1.5 NA 10.20 4/15/2010 Y -36 1931310 50029224000000 NA 0.9 NA 5.95 4/10/2010 r.._> 2020460 50029224030100 NA 0.8 NA 6.00 4/14/2010 STATE OF ALASKA ALASKA~AND GAS CONSERVATION COMMISS REPORT OF SUNDRY WELL OPERATIONS 1. Operations Abandon ^ Repair Well ^ Plug Perforations ^ Stimulate^ Other Q Performed: Alter Casing ^ Pull Tubing^ Perforate New Pool ^ Waiver^ Time Extension ^ INSPECT Change Approved Program ^ Operat. Shutdown ^ Perforate ^ Re-enter Suspended Well ^ WELL 2. Operator BP Exploration (Alaska), Inc. 4. Well Class Before Work: 5. Permit to Drill Number: Name: Development ^~ Exploratory ^ 202-0460 3. Address: P.O. Box 196612 Stratigraphic^ Service ^ 6. API Number: Anchorage, AK 99519-6612 50-029-22403-01-00 8. Property Designation (Lease Number) : ~. ~` ~ 9. Well Name and Number: ADLO-047471 "L~~" , f PBUY-37A 10. Field/Pool(s): PRUDHOE BAY FIELD / PRUDHOE OIL POOL 11. Present Well Condition Summary: Total Depth measured 12225 feet Plugs (measured) None feet true vertical 8979.2 feet Junk (measured) 9315 feet Effective Depth measured 9651 feet Packer (measured) 10428 true vertical 7951.18 feet (true vertical) 8655 Casing Length Size MD TVD Burst Collapse Structural Conductor 80 20"91.5# H-40 30 - 110 30 - 110 1490 470 Surface 3342 10-3/4"45.5# NT80LHE 30 - 3372 30 - 3228 5210 2480 Intermediate 10632 7-5/8" 29.7# 'NT95HS 27 - 10659 27 - 8875 8180 5120 Production 160 5-1/2" 17# 13CR80 10491 - 10651 8715 - 8867 7740 6280 Liner Liner Perforation depth: Measured depth: NONE - , _ ~ ~ rt , ~ - _~ True Vertical depth: _ _ _ _ _ Tubing: (size, grade, measured and true vertical depth) 4-1/2" 12.6# 13CR SURFACE - 10492 SURFACE - 8716 Packers and SSSV (type, measured and true vertical depth) 7-5/8"X4-1/2" BKR SABL-3 PKR 10428 8655 ~/ 12. Stimulation or cement squeeze summary: ~~ ~ ah p ~ ~U(~ Intervals treated (measured): ~ ~ 2Q1~ 7././v ~~~~~ ~ ~ ~~ ~ Treatment descriptions including volumes used and final pressure: ` ' ~'1~SSi0n ~~'sf;fi~f!i8 13. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcf Water-Bbl Casing Pressure Tubing pressure Prior to well operation: SUSPENDED Subsequent to operation: 14. Attachments: 15. Well Class after work: n Copies of Logs and Surveys Run Exploratory^ \ elopment Q Service ^ Daily Report of Well Operations X 16. Well Status after we SUSPENDED Oil Gas WDSPL GSTOR ^ WAG ^ GINJ ^ WINJ ^ SPLUG ^ 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Sundry Number or N/A if C.O. Exempt: NA Contact Gary Preble Printed Name Gary Preble Title Data Management Engineer Signature Phone 564-4944 Date~~ ~~1~ • • Prudhoe Bay Unit Well Y-37A, PTD 2020460 Suspended Well Inspection Report BP Exploration (Alaska) Inc. (BPXA) completed a suspended well inspection of PBU Y-37A on 7/18/10. The following attachments document the inspection and the current condition of the well (reference 20 AAC 25.110 (e) and (f)). • Suspended Well Site Inspection form documenting the well pressures and site condition. AOGCC inspector Lou Grimaldi waived the opportunity to witness the inspection. • Wellbore diagram illustrating the current configuration of the well • Pad map showing the well location and other wells within one-quarter mile radius of the surface location • Photographs showing the condition of the wellhead and the surrounding location Additional pertinent information: • PBU Y-37A was suspended on 3/31/2002. • PBU Y-37A is located on a pad with active producing wells and/or service wells. • The strata through which the well was drilled is neither abnormally geo- pressured or depleted. • The well is secured by cement left above any open formation outside and within a coiled tubing fish during a sidetrack attempt. • A passing inner annulus pressure test prior to the sidetrack attempt and the cement left in the wellbore indicates the well is mechanically sound. The inner annulus pressure (880 psi) noted durin tg he inspection is under investigation. MLB 08/17/10 • Suspended Well Site Inspection Form Notify AOGCC Inspectors at least 10 days prior to inspection to allow witness Weil Name: PRUDHOE BAY UMT Y-37A Field/Pool: PRUDNOE BAY / PRUDHOE OIL Permit # (PTD): 2020460 API Number: 50029224030140 Operator: BP EXPLORATION {ALASKA} INC Date Suspended: 3!31/2002 Surface Location: Section: 33 Twsp: 11 N Range: 13E Nearest active pad or road: Prudhoe Bay Y-Pad Take to Location Digital camera Brief well history Latest Sundry or Completion report Past Site Visit documentation Pressure gauges, fittings, tools Map showing well location (Aerial photos Wellbare diagram showing downhoie condition Site clearance documentation Sample containers for fluids on or near pad Condition of Surface Location AOGCC requires: 1 } a description of the condition of the surface location, including discoloration, fluids or sl•~eens visible on the ground or in any nearby water, 2}photographs showing the condition of the location surrounding the well General location condition: Goad Pad or location surface: Dry Location cleanup needed: No Pits condition: Clean water Surrounding area condition: Good Water/fluids on pad: No Discoloration, Sheens on pad, pits or water: Samples taken: No Access road condition: Good Photographs taken (## and description): 3: sign wellhouse and pit. Condition of Wellhead AOGCC requires: 1 } a description of the condition of the wellhead, 2} well pressure readings, where practicable, 3} photographs showing the wellhead condition WellheadJtreelvalve description, condition: Good Cellar description, condition, fluids: 14" of water - no sheen Rat Hole: NIA Wellhouse or protective barriers: Wellhouse Well identification sign: Yes Tubing Pressure (or casing if n g . 0 si / Annulus pressures: lA: 880 ps' A: 210 psi Wellhead Photos taken (# an ption): 2: #reelwellhead. Work Required: None Operator Rep (name and signature): Torin Roschinger ~-'"~, AOGCC Inspector: Lou Grimaldi (waived) Other Observers: inspection Date: 7!18/2010 AOGCC Notice Dafe: Time of arrival: 12:00 PM Time of Departure: Site access method: Truck No Jack Winslow 7/1 6120 1 0 12:15 PM TRH = 4-1 /1 fi' SM CIW WELLHEAD= 5M FMC ACTUATOR= BAKER KB. ELEV = 80.9' BF. ELEV = 27.22' KOP= 2100' MaxA le= 97 11861' Datum MD = 10663' 0.9tum ND= 8800' SS 10-3/4" CSG, 45.5#, Nf-80, ID = 9.950" ~--I 3380' Mirlmum ID = FISH @ 9315' 2-3/8" CH EM CUT COIL TBG * TOP OF 2-3/8" COIL TBG FISH, 4.45#, H-90 9315' +/- GUIDE TOOL SET ON COL 4-1 /2 GFN (WLM) 9327' SAFETY NOTES: DURINGY37ASDTRKOPS,+/- 2135' OF 23/8" COIL TBG / BHA WAS LEFT IN WELL AFTER COIL PARTED. TOP OF FlSH ~ 9315' (CHEM CUT). BTM OF FISH ~ 11450'. " SEE CTD R~ORTS FORADDITIONALINFO. 7-5/8" X 5-112' BKR PKR/HGR W/ TIEBACK H 10491' 7-518" CSG, 29.7#, NT-95HS, ID= 6.875" 10659' 7-5/8^ CSG SHOE 10630'elm TOPOFWHIPSTOCK 10650' RA PIPTAG 10659' PERFORATION SUVIM4RY REF LOG: ANGLE AT TOP PERF: Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL OprYSoz DATE R3TD F-I 10976' I 5-1/2" LNR 17#, 13-CR, ID=4.892" I Y 3 7 A S'~ NOTES: 4-112" TBG 8 5-1/2" LNR ARE ~ 13~HROME WELL ANGLE> 70° ~ 10780' & > 90° ~ 10865'.' COIL TBG RSH IN HOLE 9315'.SEESAFETYBOXBELOW FORDETAILS. 209$' 4-1 /2" OTIS SSSV NP, ID = 3.813" r~ c ~ icr inn nn~ c ~~ ST MD ND DEV TYPE VLV LATCH PDRT DATE 7 3222 3034 37 KBMG DV BK 0 02/28/02 6 5768 4952 44 KBMG DV BK 0 02/28/02 5 7685 6330 43 KBMG C1V BK 0 02/28/02 4 9042 7373 38 KBMG CN BK 0 02/28102 3 10056 8227 24 KBMG DV BK 0 02/28/02 2 10201 8360 21 KBMG DV BK 0 02/28/02 1 10306 8459 19 KBMG DV BK 0 02/28/02 10373' H4-1 /7' PARKER SWS NP, D = 3.813" 10428' -{7-5/8"X4-1C2" BKRSABL-3 RCR, ID= 3.93T' I 10459' 4-1 /2" PARKER SWS NP, D = 3.813" 10477' 4-1 /2" SWN NIP, MILL'DT03.80" D 10492' 4-1 /2" TBG, 12.611, 13-CR, .0152 bpf, ID = 3.958" 10493' H4-1/2" WLEG, ID= 3.958" 10463' ~MD TT LOGGED 11 /10/93 5-1/2" LNR MLLOUT WINDOW (Y-37A) 10651' - 10658' (OFF WHPSTOCK ) DOTE REV BY COMMENTS DATE REV BY COMMENTS 10/31/93 MDO ORIGINALCOMPLETDN 03/31x02 CTDSDETRACK(ATTEMPT) 04/02/02 CH/TP CORR~TiONS 06/24/02 JM'KAK SETGUDETOOL I BTM OF CT FISH I 3-3/4" OPEN HOLETD H 1 PRUDHDEBAY UVff WELL: Y-37A PERMIT ND: 202-0460 AR No: 50-029-22403-01 SEC 33, T11 N, R13E 1425' SNL & 276' WEL BP Exploration (Alaska) • ~~ ,~ Z 0 cn Entry.+Exd ~--~-~- I ~; r ~L_ ~~~ ~' .' ~) it . i .:__-_~ _ r vv i ~~ ~ti~--- i ~m w ~~ ,y 7~ .~ -~ ~' - =i ~ 3` -T > ~ c~ ~ _ .~,_ _ s ~. ~_. - _ __ _ _. L _. ._-_ _- _, 69 ~ 1 ~..! [~ f ~ i i ~ ~ ~ L, ,~ __ 1 P ~ ~ ~ ! I ' ~ i ri i ~ , III; ~ ~ ~ ~ ~ 1 ~ ~ ~, '~ rr•r•NN1 i•~~~,•~~jr~~~ii--rr~r i ~ rrkr.;^ r~ J (J 17 ~'NN c)-' (.~A>C7 U`N ~~ iNJp~ A~~tJN CTS (W.f 'U+ ~ A ~ W ~ N i v y u _.__.,._ ;~: ' .~ ~- . ,_, _< 7135' 109' ~ 767' I' iExR~Ertry J) ~?=~ "" ~ * ~ PRUDHOE BAY UNtT - Y PAD }~ !y1a96 Cy^n t4< - ~~ • ~. f ''i ,.. ; . ~~~, n sa ;~.t '`~ M ~„ , ~'~ p ~~. ~h•xl ,°~ ~ t acv - °"~'} $ ~ t fv r i ~.i l ` [ i ..-r ~ ~p`~,~ ,n p ~ ^~ ~ ~2 ,+, r' x : a ,~ J w ~, ,. ~~ ~ ~~ ~ ~ ~ ~ ~b.~ .. ~ .., }. ,~„.. ~ ~ ~ s~~ _.r ~ ~~ .A ~ u3.t~ .A =1 ' ~' Pad July 14, 2009 Approximate Scale: 1"=300' 2009-19c-8-22 AFRO-tli~TRI~ ~ ~ . .*~ 6 ! --:k' .w1 M' ~ M~ _ , `. r° ~.,~-"x a 4~, y~• ~ #(~T`.U~K 5 'y ~ps~ ~ t ~„ ~ ~Y ~w~ - 44-. '.~ l N ~I LLtt ~ .~-M`;~c k~ .. ~ ~ 5 ~ ~ ~~ w ~ t ~~ ~ ~` = ~3 ~ " ~ „ ~~ e 4 ~~ + ~'~ as a ~ t d` d ~ ~ * r rp ~- ~'. ~ -, ~~ ~~ '~ I I._ ~.... A .~ ~. .v. n.. a'°._ ~ } 1 t- . - ~ ~. _ ~ _ .,. ~ f ~ ~,u 1 ~ ~~ Y ~ 4 a` _ r?. k ,. ~~~~ ~ ~~'~` ~. .. ~ • • WELL NAME Y1 A OWNER Prudhoe Bay Unit OPERATOR BP Exploration {Alaska) Inc, API NUMBER 50-029-22403-01-00 SUR. LOCATION DRILLING PERMIT NE 1/4, Sec, 33, i'11 N, R13E 202-046 • R. i • e e MICROFILMED 07/25/06 DO NOT PLACE ANY NEW MATERIAL UNDER THIS PAGE F:\LaserFiche\CvrPgs _ Insens\Microfilm _ Marker.doc 3 ö It ¡1 ÅOt)~t DATA SUBMITTAL COMPLIANCE REPORT 4/2/2004 5>p '-LJ ) 611//vL À 6 l.j 2-- Permit to Drill 2020460 Well Name/No. PRUDHOE BAY UNIT Y-37A Operator BP EXPLORATION (ALASKA) INC API No. 50-029-22403-01-00 MD 12225../ TVD 8979 ./,- Completion Date 3/31/2002 --- Completion Status SUSP Current Status SUSP UIC N - -------- ~----- " ---- ___0----- -------- REQUIRED INFORMATION Mud Log No Samples No Directional Survey Yes------- --------- ----------- DATA INFORMATION Types Electric or Other Logs Run: Well Log Information: (data taken from Logs Portion of Master Well Data Maint) Log/ Electr Data Digital Dataset Type Med/Frmt Number ~kOg------ -~--- ~g ~C ~C I 0-°g JJ,.og Name I nduction/Resisti\lity Gamma.Ray 10918 GammaRaY 10917 Induction/Rêsisti\lity Gamma . Ray Induction/ResistivitY Log Log Run Interval OHI --- Scale Media No Start Stop CH Received Comments 25 BS 1-5 rþi"D 10642 12197 Open 4/19/2002 25 BS 1-2 r-CJI) 10642 10867 &If:ê- 4/19/2002 PB1 10652 1 0897 ~4/19/2002 PB1 Name Interval Start Stop 5 10652 12225 Open 4/19/2002 25 BS 1-2 M ß 10642 10867 8C- 4/19/2002 PB1 25 BS 1-5 M /) 10642 12197 Open 4/19/2002 Sample Set Sent Received Number Comments - ---------- Well Cores/Samples Information: Well Cored? ADDITIONAL INFORMATION Y/~ Daily History Received? '"' ON (jyN ------' Chips Received? ,- Y I N - Formation Tops Analysis Received? ~ ------ - ------- -- ----- - Comments: ---- ------ J-cu Date: ') 6 flrr J-M v\ ------------ Compliance Reviewed By: ¿ý' \ ) STATE OF ALASKA ') ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well D Oil 0 Gas 181 Suspended D Abandoned D Service .. 2. Name of Op~rator t;'.~:~;:~~: ':::;~;:~';\'t $urLÿo..~/~ 7. Permit Number BP Exploration (Alaska) Inc.' JATH.~; 202-046 302-385 <- 3. Address ~_.3.-~..~~;, 8. API Number P.O. Box 196612, Anchorage, Alaska 99519-661~. \n:.p~.n;~,t.:,', 50-029-22403-01 4. Location of well at surface '1,:::,:::æ1"';~~~::: 9. Unit or Lease Name 1425' SNL, 276' WEL, SEC. 33, T11 N, R13E, UM X = 644541, Y = 5948825 Prudhoe Bay Unit At top of productive interval 839' SNL, 1992' EWL, SEC. 03, T10N, R13E, UM X = 646909, Y = 5944177 10. Well Number At total depth 1339' SNL, 3279' EWL, SEC. 03, T10N, R13E, UM X = 648206, Y = 5943702 11. Field and Pool 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. Prudhoe Bay Field / Prudhoe Bay Pool KBE = 79.10' ADL 047471 12. Date Spudded 13. Date T.D. Reached 14. Date Camp., Susp., or Aband. 3/16/2002 3/24/2002 3/31/2002 17. Total Depth (MD+TVD) 18. Plug Back Depth (MD+TVD) 19. Directional Survey 12225 8979 FT 9651 7951 Fr 181 Yes D No 22. Type Electric or Other Logs Run Vision-RES MD, Slim Pulse 23. CASING SIZE 20" 10-3/4" 7-5/8" 5-1/2" Classification of Service Well Y-37A 15. Water depth, if offshore 16. No. of Completions N/A MSL Zero 20. Depth where SSSV set 21. Thickness of Permafrost (Nipple) 2098' MD 1900' (Approx.) WT. PER FT. 91.5# 45.5# 29.7# 17# GRADE H-40 NT80LHE NT95HS 13Cr80 CASING, LINER AND CEMENTING RECORD SETTING DEPTH HOLE Top BOTTOM SIZE 30' 110' 30" 30' 3372' 13-1/2" 27' 10659' 9-7/8" 10491' 10651' 6-3/4" CEMENTING RECORD 270 sx Arctic Set (Approx.) 1281 sx CS III, 375 sx Class 'G' 265 sx Class 'G' 89 sx Class 'G' AMOUNT PULLED 24. Perforations open to Production (MD+ TVD of Top and Bottom and interval, size and number) 3-3/4" Uncased Hole (w/ Cementing Assembly Fish) MD TVD MD TVD 10651' 12225' 8667' 8079' 'N~.\\~1".)t".iL.._~\S ~\<..;)~~d ;~ I <..~,\ \-~~\\{~ <"'(i.,;¡~ ~ tj~\- \"\<) 1/",,- \ \ l-.\ S \:) \,."\ Q.. '-\... \\.... ~,..;:¡~ '-\-""-(l- ~"'\I~~ <: \ a <O'-{b'., ß V 0.. \-\~'(¡"I\~ \~() +e Ç\c~1 {\~\~~\\.. \').;)lc ~~~~~~.. I-iR. \~~~-_. ~:\ "~~~)~h.,~<:?t '\S {~~y~~'\(.;~, MJ' {VI 27. ql..">--û, PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.) Not on Production N/A Date of Test Hours Tested PRODUCTION FOR OIL-BBL TEST PERIOD 25. SIZE 4-1/2", 12.6#, 13Cr TUBING RECORD DEPTH SET (MD) 10493' PACKER SET (MD) 10428' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED 9315' - 11450' Coil Tubing Cementing Assembly Left in Hole 9651' PBTD, Milled out inside of 2-3/8" Coil Tubing Cementing Assembly (06/29/02) Freeze Protect with 35 Bbls of MeOH GAs-McF WATER-BBL CHOKE SIZE GAS-OIL RATIO Flow Tubing Casing Pressure CALCULATED Press. 24-HoUR RATE OIL-BBL GAs-McF WATER-BBL OIL GRAVITY-API (CORR) 28. CORE DATA ,,,,,= " I' Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core Çbi~: No core samples were taken. 2\~aS~Œ .... ¿; \~ Form 10-407 Rev. 07-01-80 RBDMS BFL APR 2 'Jiln'J L\...:I.....h) ~r Submit In Duplicate , , ) ) 29. Geologic Markers 30. Formation Tests Marker Name Measured Depth True Vertical Depth Include interval tested, pressure data, all fluids recovered and gravity, GOR, and time of each phase. Shublik B 10698' 8909' Shublik C 10720' 8925' Sadlerochit 10753' 8945' 31. List of Attachments: Summary of Daily Drilling Reports, Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed T."ieHUbbl.~..~ Title Technical Assistant Date Oé)..'~4'03 Y -37 A 202-046 302-385 Prepared By Name/Number: Terrie Hubble, 564-4628 Well Number Permit No. / Approval No. Drilling Engineer: Alistair Sherwood, 564-4378 INSTRUCTIONS GENERAL: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. ITEM 1: Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. ITEM 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. ITEM 16 AND 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the ~roducing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. ITEM 21: Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). ITEM 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. ITEM 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, Other-explain. ITEM 28: If no cores taken, indicate 'none'. Form 1 0-407 Rev. 07-01-80 ~) ) BP EXPLORATION O>perationsSummary Report Page 1 df 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y -37 A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Date From - To Hours Activity Code NPT Phase Description of Operations 3/12/2002 00:00 - 13:00 13.00 RIGU P PRE Turn key move to Y-37a 13:00 - 00:00 11.00 RIGU N WAIT PRE Wait on site prep, Installation TWC,well house removal,and pad leveling. 3/13/2002 00:00 - 13:00 13.00 RIGU N WAIT PRE Wait on gravel; grade and level location. 13:00 - 15:00 2.00 RIGU P PRE Position rig over well. Required pulling off and releveling. 15:00 - 20:30 5.50 RIGU P PRE Spot pits, raise derrick, RU piperack, floor, wires, lines, steps, handrails, etc. Spot OS #4. 20:30 - 00:00 3.50 RIGU P PRE Accept rig 20:30 hrs. NU BOPE. Function rams. 3/14/2002 00:00 - 00:30 0.50 RIGU P PRE Finish NU BOPE. 00:30 - 03:00 2.50 BOPSUR P DECOMP Grease valves and RU for BOP test. 03:00 - 09:00 6.00 BOPSUR P DECOMP Test BOPE. Witness waived by AOGCC's Jeff Jones. 09:00 - 10:00 1.00 BOPSUR N RREP DECOMP Rebuild choke manifold valve. 10:00 - 10:30 0.50 BOPSUR P DECOMP Finish BOP test. 10:30 - 11 :30 1.00 BOPSUR P DECOMP RU BPV lubricator. Pull TWC. Well on vac. 11 :30 - 12:00 0.50 KILL P DECOMP Safety meeting. 12:00 - 12:45 0.75 KILL P DECOMP Load well with SW 4.0 BPM; 300 psi. 12:45 - 13:15 0.50 KILL N SFAL DECOMP Failure of DS pump on gear end. Housing ruptured. All gear oil caught in secondary containment. 13:15 - 14:00 0.75 KILL P DECOMP Continue BH kill. Final injectivity 4.0 BPM; 280 psi WHP. 14:00 - 15:15 1.25 PXA P DECOMP PU inj. MU cementing BHA. 15:15 -16:45 1.50 PXA P DECOMP PT MHA. Displace methanol from coil. Stab inj. 16:45 -19:15 2.50 PXA P DECOMP RIH circulating 0.5 BPM, no returns. 19:15 - 19:45 0.50 PXA P DECOMP Tag whipstock 10688' CTM. Correct depth (-36'). Repeat tag. Pull back into tubing tail. No overpulls, but high string wt (55k up at 40 FPM). 19:45 - 20:15 0.50 PXA P DECOMP Safety meeting with cementers. 20:15 - 21 :30 1.25 PXA P DECOMP RU cementers. Take on additional fluid form uprights to flood backside to keep hole full. 21 :30 - 22:00 0.50 PXA P DECOMP Pump across top to fill hole. 22:00 - 22:06 0.10 PXA P DECOMP Pressure test lines to 4000 psi. 22:06 - 22:23 0.28 PXA P DECOMP Mix and pump bentonite cement. 5bbl cement neat,15bbl cement with aggregrate, 5 bbl cement neat. Displace to coil at 2.2 bpm 1060 psi. Shut in choke. 22:23 - 22:33 0.17 PXA P DECOMP Bull head cement to Perforations at 2.6 BPM 970 psi CTP. WHP 135 psi. Locked up when lead cement hit perforations. Let WHP build to about 700 psi. 22:33 - 23:02 0.48 PXA P DECOMP Open to FOC and lay in cement one for one. Top of cement estimated 9300. POOH to 9000'. Squeeze to 1200 psi. Perfs did not take much more (0.5 bbl max). 23:02 - 23:50 0.80 PXA P DECOMP RIH circulating 1.7 ppb biozan at FOC. Contaminating the cement circulating 2 bbl for each bbl of cement. RIH to 10640' 23:50 - 00:00 0.17 PXA P DECOMP POH 3/15/2002 00:00 - 03:00 3.00 PXA P DECOMP POH lay down cementing nozzel. Jet BOP. 03:00 - 04:00 1.00 STWHIP P WEXIT MU Milling assembly. 04:00 - 06:45 2.75 STWHIP P WEXIT RIH with milling assembly BHA#2 06:45 - 08:00 1.25 STWHIP P WEXIT Tag XN 10477' CTM. Correct depth (-30') to 10447' ELMO. Mill XN and dress 08:00 - 08:45 0.75 STWHIP P WEXIT RIH. MW starting 10646'. Mill cement to 10651'. Stall here. No overpull. Ease into it again. Stall 10651'. Must be our pinch point. 08:45 - 11 :00 2.25 STWHIP P WEXIT Mill window. Slow getting started, grabby with several stalls at 10651'. Time drill first 0.5' at 2.6 BPM; 2100 psi FS. Full returns. Printed: 4/1/2002 11:16:19 AM )- ') SF> EXPLORATION OpërationsSummary R~port Page 2of.14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 {)ate From - To Hours Acti"ity Code NPT Phase DescriptioJiof Operations 3/15/2002 11 :00 - 18:00 7.00 STWHIP P WEXIT Start pushing on it a little. Mill to 10653' with about 2000 # WOB, pumping Flo-Vis sweeps. Progress slowed. Stacking up to 6000 WOB wlo much motor work. Strange milling: stacking with 500 psi CTP above FS, then release brake, got wt back. Continue to crawl. Stall at 11657.4'. Acts like bottom of window. 18:00 - 20:55 2.92 STWHIP P WEXIT Continue to mill 1 0658.3 Stalled twice Acts like string at base of window. Continue milling. Mill from 10,659' to 10661 at an average rate of 7 ftlhr @ 2600 psi at 2.6 bpm FS = 1950 psi. 20:55 - 22:10 1.25 STWHIP P WEXIT Stopped making progress at 10661.5. Picked up and made numerous attempt to mill NO progess. Decided to POH and look at mill. 22:10 - 23:15 1.08 STWHIP P WEXIT Take on mud and circulate mud to mill. 23: 15 - 00:00 0.75 STWHIP N DPRB WEXIT POH laying in new mud. 3/16/2002 00:00 - 01 :05 1.08 STWHIP N DPRB WEXIT POH to inspect milling assembly. 01 :05 - 02:00 0.92 STWHIP N DPRB WEXIT Diamond mill under gauge at 3.56". String mill in gauge. Replaced one missing set screw in the coil connector. MU parabolic diamond mill and string mill. 02:00 - 03:55 1.92 STWHIP N DPRB WEXIT RIH to 10650 03:55 - 05:48 1.88 STWHIP P WEXIT Stalled once at 10,657.5. Ream to botttom 10661.5. Drill formation at 2.6 bpm 3000 psi F.S. = 2700 psi. drill to 10670. Window 10651 to 10657.5. Back ream at 2.4 ftlmin 2.6 bpm @ 2700 psi to 10, 644. RIH dry and tag. PU clean. PU to 10640 make second dry tag. Clean both ways. 05:48 - 07:30 1.70 STWHIP P WEXIT POOH. 07:30 - 08:00 0.50 STWHIP P WEXIT LD milling BHA. 08:00 - 09:45 1.75 DRILL P PROD1 MU drilling BHA: M09, 3.28 deg BHI motor, Anadril MWD, Weatherford 36 deg orienter. Test orienter. Tough getting motor stuffed into tubing. 09:45 - 12:00 2.25 DRILL P PROD1 RIH. Shallow test good. Did not check orienter again. Correct depth at flag (-38'). Continue RIH. Wt bobble but fell thru 10656'. Tag TD 10667'. 12:00 - 12:15 0.25 DRILL P PROD1 PUH above window and orient high left. Looks like we're getting 1:1 on orienter. 12:15 - 14:30 2.25 DRILL P PROD1 Drill 2.3/2600 with TF wandering between 20L and 15R. Full returns. Drill to 10711'. 14:30 - 15:30 1.00 DRILL P PROD1 Orient to keep us a little more on the left side. Tough getting clicks in OH with high bend motor. PUH to casing and get them there. 15:30 -18:15 2.75 DRILL P PROD1 Drill 2.5/2800. Gettin' 50 deg DLs -- lookin' good. Typical 1 0 - 20 FPH Shublik drilling; push any harder and it stalls. Drill to 10734'. 18:15 - 22:30 4.25 DRILL P PROD1 Pump up survey. Directionally drill to 10,810' 2.7/2.7 bpm 3280 psi.(F.S.=3090 psi) 22:30 - 22:50 0.33 DRILL N DPRB PROD1 Suffiently away from old well bore to get good Azimuth. Need 80 L. Attempt to orient 1111111 no responce. 22:50 - 00:00 1.17 DRILL N DPRB PROD1 Attempt to orient 1111 no responce. PU into casing. Tool face changed 180R pulling into casing. Orient Try 3 clicks got 4, try 3 got 1, try 2 got 2. 3/17/2002 00:00 - 02:50 2.83 DRILL N DPRB PROD1 RIH to bottom. Unable to get toolface change. PU try for 5 clicks got 3. Try for additional 5 clicks get 4. Continue attempting to orient. Unable to orient on bottom. Regardless of the toolface set in cased hole the toolface returns to the Printed: 4/1/2002 11: 16: 19 AM ') ) BP EXPLORATION 0 perationsSu m märy. Report Page 3 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Date FroÏ11- To Hours Activity Code NPT Phase. Description of Operations 3/17/2002 00:00 - 02:50 2.83 DRILL N DPRB PROD1 bottom hole toolface. Back ream bottom the length of the BHA. No effect on ability to orient. A combination of the high bend motor and the competency of the formation in the top of zone 4 are preventing acquisition of the required tool face. Last survey incicated 20/1 OODL required. Decided to POH. 02:50 - 05:30 2.67 DRILL N DPRB PROD1 POH for BHA change. 05:30 - 07:30 2.00 DRILL N DPRB PROD1 Swap motor to 1.83, swap bit to DS49 (M09 had boogered cutters on gage), swap MWD to recover memory data, swap orienter to another new style, test orienter. 07:30 - 09:45 2.25 DRILL N DPRB PROD1 RIH. Correct depth at flag (-46'). 09:45 - 10:15 0.50 DRILL N DPRB PROD1 Log tie-in at 10500'. GR not working -- pegged out. We'll finish our build anyway. 10:15-10:30 0.25 DRILL N DPRB PROD1 RIH at 90R TF clean thru window. TF shifted to highside (as expected) towards bottom. Tag TD 10821'. 10:30 - 11 :30 1.00 DRILL N DPRB PROD1 Orient TF. Can't get clicks on bottom -- staying high side. Also, keep stalling on bottom, losing a couple feet each time. Pull into casing and get some clicks. GR started working again. 11 :30 - 12:45 1.25 DRILL N DPRB PROD1 Finally got 90L TF on bottom, but can't drill. Stalls too easy on bottom 10816'. Ease into it at 0.1 FPM, still stalls. Good slide to bottom, so it's not stalling because of stacking then slipping all at once. Worked back to 10821'. Stall. PUH, RIH, stall 10815'. Hope we haven't found our missing GLV. RIH stall at 10820'. All PU's are with about 3k - 4k overpull. Approach grabby spot even slower -- got by it (that may not be a good thing). 12:45 - 15:00 2.25 DRILL P PROD1 Drill with 90L TF to 10850'. Surveys showing we need some more inclination. Get a couple clicks. Drill to 10897'. Stacking. 15:00 - 15:30 0.50 DRILL P PROD1 Wiper to window. Struggle getting up past 10821' stinker. Repeated overpulls, w/o MW. Stack wt down to get free. Worked up past tight spot. Continue wiper to window. RIH. Set down and stall 10824'. 15:30 - 17:15 1.75 DRILL N DPRB PROD1 Try to work past 10824'. PUH to orient left. RIH and stall 10770' (shale here, but doubt that's what is getting us). Repeat, stall again. Check TF 140R. Orient to 90L. RIH, P-spike 10768' then stall 10770'. PUH. RIH dry, clean past 10770'. Set down 10790'. Bring pumps up, stall. PUH. RIH dry again. Set down but fell thru 10800'. Tag 10820', PUH, RIH clean to tag at 10820'. PUH and try to get TF from 145L to 90L. Would not take clicks. Stall at 10820' with 140L TF. All pickups are with just slight overpulls. Orient to 90L. Got the clicks but still can't get past 10820'. Need to do something different -- putting a lot of fatigue on the pipe. 17:15 -17:45 0.50 DRILL N DPRB PROD1 PUH to try and get a tie-in at 10500' before POOH (we have not done any tie-in yet). GR pegged out at 125 counts -- should be around 50. Above and below it's believable. Maybe scaled-up in tailpipe area. Flag pipe w/o tie-in correction. 17:45 - 18:00 0.25 DRILL N DPRB PROD1 POOH. 18:00 - 18:15 0.25 DRILL N DPRB PROD1 PJSM crew change 18:15 - 19:20 1.08 DRILL N DPRB PROD1 Continue POH to surface. 19:20 - 19:38 0.30 DRILL N DPRB PROD1 PJSM change out BHA. 19:38 - 20:15 0.62 DRILL N DPRB PROD1 Change out packoff on injector. Tighten coil connector 3 Printed: 4f1l2002 11: 16: 19 AM , , J ) BPEXPLORATION Operáti()ns, Surrïmary>Røport Page 4 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 £Date From - To HoÜts Activity Code NPT Phase Description of Operations 3/17/2002 19:38 - 20:15 0.62 DRILL N DPRB PROD1 screws loose. Laydown out BHA 20:15 - 21 :25 1.17 DRILL N DPRB PROD1 PU venturi basket and motor to fish junk ( possible GLV). 21:25-23:10 1.75 DRILL N DPRB PROD1 RIH. Correct to flag -51'. 23:10 - 23:16 0.10 DRILL N DPRB PROD1 Establish baseline pressure. 3300 psi @ 2.5 bpm. 23:16 - 00:00 0.73 DRILL N DPRB PROD1 RIH without pump. Tag botttom of window. Picked up went right thru. RIH to TD without pump (Like it had eyes). PU 10' start pumping at 2.5 bpm 3415 psi. RIH to TD. POH to 10,860' saw 10k over pull at 10,872'. RIH to TD saw motor work at 10,883. POH to 10,840 clean. RIH to TD. Decided to POH circulating. 3/18/2002 00:00 - 01 :30 1.50 DRILL N DPRB PROD1 POH with venturi basket. 01 :30 - 02:00 0.50 DRILL N DPRB PROD1 Lay down BHA Venturi basked contains large chunks of rubber. Enough large pieces to make a soft ball. 02:00 - 02:30 0.50 DRILL N DPRB PROD1 Review data and plan next trip. Will resume drilling. After reviewing projected angle and direction of bit, decided a short run with 1.83/100 motor is required to land the build. 02:30 - 04:00 1.50 DRILL N DPRB PROD1 PU building assembly. 04:00 - 06: 15 2.25 DRILL N DPRB PROD1 RIH. Correct depth at flag (-51'). 06:15 - 07:30 1.25 DRILL N DPRB PROD1 Try tie-in at 10500'. GR pegged-out again (yes, this is a different GR tool, so must be scaled up in this area). RIH thru window. Log up starting at 10700'. Correct depth (+18'). 07:30 - 08:15 0.75 DRILL N DPRB PROD1 RIH tag and stall 1 0838' (same spot as uncorrected 10820' problem area yesterday). RIH slowly at 30L TF and got past. RIH and tag, stall, tag, stall, starting 10880' to bottom 10897'. 08:15 - 08:30 0.25 DRILL N DPRB PROD1 Orient. 08:30 - 09: 15 0.75 DRILL N DPRB PROD1 Attempt drilling 2.5bpm I 2700 psi. Repeated stalls on bottom 10897' and within a few feet of bottom. Junk still present. POOH for JB again. 09:15 -11:15 2.00 DRILL N DPRB PROD1 POOH. 11: 15 - 11 :45 0.50 DRILL N DPRB PROD1 LD BHA 11 :45 - 12:15 0.50 DRILL N DPRB PROD1 Safety meeting. 12:15-13:00 0.75 DRILL N DPRB PROD1 C/O annular packoff rubber. This is clearly the source of the downhole recovered rubber. 13:00 - 13:45 0.75 DRILL N DPRB PROD1 Stab coil and P-test annular and lubricator. Jet top of master. 13:45-14:15 0.50 DRILL N DPRB PROD1 MU venturi JB. 14:15 - 16:15 2.00 DRILL N DPRB PROD1 RIH. Correct depth at flag @ 10300' (-32') 16:15 -17:15 1.00 DRILL N DPRB PROD1 RIH dry. Tag 10760' and fell thru. Tag TD 10909'. Bring up pumps 2.5/3400. RIH slow. Hard stall 10907.5'. Wash back. RIH stall again 10907.5' (shouldn't stall this easy on formation). Ease into it very slow -- stall again. Jar down 3 times without pumps. Dry tag now at 10911'. PUH, wash down very slow but stalled at 10908'. Jar down again 3 times without pumps. PUH, wash down and stall 10906.5'. Try it again. Stall 10908'. 17:15 -19:15 2.00 DRILL N DPRB PROD1 POOH washing slow in open hole 2.5 BPM. 19:15 -19:45 0.50 DRILL N DPRB PROD1 LD BHA. Venturi JB gone -- twisted off. LlH: mule shoe, screen sub, extension, venturi JB, and our pride (7.9' total length). 19:45 - 21 :00 1.25 DRILL N DPRB PROD1 Wait on aluminum open hole kick off plug.2140 21 :00 - 21:40 0.67 DRILL N DPRB PROD1 PU aluminum open hole whipstock and stab onto well. 21 :40 - 00:00 2.33 DRILL N DPRB PROD1 RIH correct to flag -38.2'. 3/19/2002 00:00 - 02:00 2.00 DRILL N DPRB PROD1 RIH and correct to flag at 10,300 (-32.8)'. Continue to RIH to 10,741 were we set down. PU and SO twice and set down at Printed: 4/1/2002 11: 16: 19 AM , , ') ) BP EXPLORATION OperationsSunnnary:Repôrt Pàge50f 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y -37 A REENTER+COMPLETE NABORS NABORS 38 Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Date From-To Hours Activity Code NPT Phase Desëription of Operations 3/19/2002 00:00 - 02:00 2.00 DRILL N DPRB PROD1 10,735 and 10,723. Losing ground. Discussed with Dave Hearn the tool limitations. Aggressively worked open hole whipstock for 2 hours gradually working to setting depth (10,835 top of whipstock). Approximately 35 up and down cycles were required to get it to bottom. 02:00 - 02:38 0.63 DRILL N DPRB PROD1 Drop .5" ball and circulate to running tool. Pressure to 2200 psi to set and 4200 psi to shear tool. Stack 7000# on the whipstock OK. 02:38 - 04:15 1.62 DRILL N DPRB PROD1 POH with setting tool. 04:15 - 04:38 0.38 DRILL N DPRB PROD1 PJSM change out running tool for drilling BHA. 04:38 - 05:00 0.37 DRILL N DPRB PROD1 LD setting tool. 05:00 - 05:45 0.75 DRILL N DPRB PROD1 MU drilling BHA with 2.38 motor. 05:45 - 06:00 0.25 DRILL N DPRB PROD1 RIH to 1000' and shallow hole test MWD OK. 06:00 - 07:45 1.75 DRILL N DPRB PROD1 RIH. Correct depth at flag (-38') 07:45 - 08:30 0.75 DRILL N DPRB PROD1 Log tie-in up starting at 10700'. Correct depth (+4') 08:30 - 10:20 1.83 DRILL N DPRB PROD1 RIH tag dry at 10840' corrected. PUH and orient to high left. Struggle getting clicks. 10:20 - 10:50 0.50 DRILL N DPRB PROD1 After nearly two hours of getting clicks, ended up 15R. RIH with pumps and tag/stall 1 0834'. Start time milling sequence here. Milled to 10835' but TF shifted to 25R -- unacceptable. PUH and orient again shooting for high left. 10:50 - 13:15 2.42 DRILL N DPRB PROD1 RIH. Tag and stall 10836.5'. Time drill 2.6/2950 at 6 FPH with TF 5L. Several stalls to 10837.7'. Slow down the time drill to 2 FPH. TF gradually moved to 1 OR. Time drill to 10838.5', then start pushing on it. No stalls, looks like we're off. 13:15 - 14:00 0.75 DRILL N DPRB PROD1 Drill 40 FPH, 5R TF to 10865'. 14:00 -15:00 1.00 DRILL N DPRB PROD1 Orient around to get a little turn. RIH at 58L and tag/stall 10838'. PU. RIH. Stall here again. 15:00 - 16:15 1.25 DRILL N DPRB PROD1 Orient. RIH at 45L. Tag/stall 1 0837', 20k OP. Tag/stall 10835.5', no OP. Tag/stall 10834.7', no OP. Tag/stall 10834.5', 20k OP. 16:15 -17:15 1.00 DRILL N DPRB PROD1 Ease into it with a little time milling to try and get top of whipstock area cleaned up. Start at 10834.7' at 5L. By 10836.3', at 20L. Then TF shifted fairly quickly to 2L by 10836.6'. No further TF change or MW after this depth, but continue time milling to 10838.5'. Then let it fall -- clean to TD 10863'. 17:15 -17:30 0.25 DRILL N DPRB PROD1 Drill to 10870' with reactive taking us to 30L. 17:30 - 20:00 2.50 DRILL N DPRB PROD1 Pump up survey. Ream junction 2.6/3000 20R at 0.2 FPM. RIH with pumps: pressure bump and wt loss at 10840' but fell thru. Back ream again. RIH clean with and without pumps. 20:00 - 22:30 2.50 DRILL N DPRB PROD1 POOH 22:30 - 23:30 1.00 DRILL N DPRB PROD1 C/O motor to 1.5 deg. 23:30 - 00:00 0.50 DRILL N DPRB PROD1 RIH 3/20/2002 00:00 - 02:30 2.50 DRILL N DPRB PROD1 RIH with BHA #11 (1.5 deg motor). 02:30 - 03:45 1.25 DRILL N DPRB PROD1 Log tie-in at window. Correct depth (+28'). 03:45 - 04:30 0.75 DRILL N SFAL PROD1 Replace hard-line seal in reel house. 04:30 - 05:30 1.00 DRILL N DPRB PROD1 RIH and tag 10921'. Repeat tag twice at 10900'. PUH. 05:30 - 07:00 1.50 DRILL N HMAN PROD1 Tie-in again at window. Correct depth (-59'). RIH 140R and tag 1 0840'. 07:00 - 07:30 0.50 DRILL N DPRB PROD1 Orient high side. RIH 5L and tag 10840'. Will need to mill at junction again. 07:30 - 09:00 1.50 DRILL N DPRB PROD1 Orient around. Start time drill, stall 10839.5', TF at 20L, ease Printed: 4/1/2002 11:16:19AM ~ '., - -) ,) BPEXPLORATION Operations..Summary Ré,po.rt Pagø 6 of14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y -37 A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Date From - To Hours Acti\JityCode NPT Phase DescÍ"iption of Operations 3/20/2002 07:30 - 09:00 1.50 DRILL N DPRB PROD1 into it again, no stall, time drill a couple of feet w/o MW, RIH clean to TD 10876'. 09:00 - 09:30 0.50 DRILL N DPRB PROD1 Orient for left turn. 09:30 - 10:00 0.50 DRILL N DPRB PROD1 Drill to 10900' 10:00 - 13:30 3.50 DRILL P PROD1 Back on productive time. Drill to 11050'. 13:30 - 14:00 0.50 DRILL P PROD1 Wiper to window. 90L TF jumped highside in junction. Clean up through junction, slight wt and pressure bobble RIH thru junction. 14:00 - 14:30 0.50 DRILL P PROD1 Orient. 14:30 - 16:00 1.50 DRILL P PROD1 Drill to 11125', 16:00 - 18:00 2.00 DRILL P PROD1 Orient and backream junction 90L -- jumped to 50L at 10840' up. RIH and stall 10839' with this same TF. Get a click. RIH clean. Orient. Ream up 120L, stall 1 0835' up (slow stall). RIH. Ream up starting at 10837', TF shifted to 90L. MW starting 10835.7' up. Lots of MW 10835.4' up, then milled off by 10835.2'. Stall at 10834.9'. RIH. Ream up, start MW 10835', near stall 10834.1', broke over, strong MW 10833.7', near stall, broke over. Start MW 10833.2'. Lost all MW by 10832'. PUH. RIH stall at 10834'. PUH, RiH dry clean. PUH, RIH with pumps clean. 18:00 - 21 :30 3.50 DRILL P PROD1 POOH. Flag pipe 10300' EOP. OOH. 21 :30 - 22:30 1.00 DRILL P PROD1 LD BHA#11. 22:30 - 23:00 0.50 DRILL P PROD1 Set BPV 23:00 - 00:00 1.00 DRILL P PROD1 BOPE test. 3/21/2002 00:00 - 05:00 5.00 DRILL P PROD1 Continue w/BOPE test. 05:00 - 06:00 1.00 DRILL P PROD1 Retrieve BPV. 06:00 - 06:30 0.50 DRILL P PROD1 Safety meeting. 06:30 - 08:15 1.75 DRILL P PROD1 MU BHA #12: resistivity, 1.15 deg motor. Displace methanol from coil and PT inner reel valve while MU BHA. 08:15 - 10:30 2.25 DRILL P PROD1 RIH. Correct depth at flag (-4'). 10:30 -11:15 0.75 DRILL P PROD1 Log tie-in. Correct depth (+5') 11: 15 - 11 :30 0.25 DRILL P PROD1 RIH clean at minimum pump. Tag TO @11121'. 11 :30 - 12:30 1.00 DRILL P PROD1 Orienting left. 12:30 - 15:30 3.00 DRILL P PROD1 Drill to 11305'. 15:30 - 16:30 1.00 DRILL P PROD1 Wiper to the window. Smooth through junction. 16:30 - 17:00 0.50 DRILL P PROD1 Orient 17:00 - 18:00 1.00 DRILL P PROD1 Drill. Swap well to new mud (65K LSRV, 2 ppb Kla-gard, 1.5% lubetex) 18:00 -19:15 1.25 DRILL P PROD1 Orient. 19:15 - 22:00 2,75 DRILL P PROD1 DriIl2.6/2810/90L. Hard spot @ 11409' - 11419'. Pull to 54K. Go back to 80 ft/hr ROP. Drill to 11500'. 22:00 - 23:15 1.25 DRILL N STUC PROD1 Triying to get a survey. Got stuck while waiting on survey. Work pipe out. Pump 34 bbls of lubetex pill. Pull up to 75K. Got free when 12 bbls of pill out. 23:15 - 00:00 0.75 DRILL P PROD1 Wiper trip to the window. Clean trip. 3/22/2002 00:00 - 00: 15 0.25 DRILL P PROD1 Continue wlwiper. 00: 15 - 00:45 0.50 DRILL P PROD1 Orient. 00:45 - 03:00 2.25 DRILL P PROD1 Drill 2.6/2914/45R. ROP 80ft/hr. Drill to 11620' 03:00 - 04:00 1.00 DRILL P PROD1 Wiper trip to the window. 04:00 - 04:30 0.50 DRILL P PROD1 Orient. 04:30 - 04:50 0.33 DRILL P PROD1 Drill to 11635'. 04:50 - 05:15 0.42 DRILL P PROD1 Orient 05: 15 - 05:45 0.50 DRILL P PROD1 Drill to 10656'. Hit hard spot spot here. Multiple stalls. Printed: 4/1/2002 11:16:19AM . , ,- ') ) BÞ EXPLORATION Oper~tiôns Summary Røport Page 7 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Date From - To Hours Activity Code NPT Phase' Description..9fOpératibns 3/22/2002 05:45 - 06: 15 0.50 DRILL P PROD1 Stalls made us lose TF. Orient around. 06:15 - 07:00 0.75 DRILL P PROD1 Continue stalling at 10656'. Pump 10 bbllubetex pill to help ease into it. Got thru hard spot before pill hit. 07:00 - 10:00 3.00 DRILL P PROD1 Drill slow with lots of stacking/stalling to 11690', then ROP picked back up. Drill to 11720'. Stacking, BHA wiper, pump another 10 bbls lubetex pill. Continue stacking/stalling. 10:00 - 10:20 0.33 DRILL P PROD1 Wiper trip up to 11170'. 10:20 - 12:15 1.92 DRILL P PROD1 Log resistivity MAD pass from 11170' to window at 300 FPH. 12:15 - 12:45 0.50 DRILL P PROD1 RIH. Clean. Slight MW in 11520' shale. 12:45 - 15:30 2.75 DRILL P PROD1 Drill. Generally, poor slide and easy stalls. In and out of shale streak, drilling 50 API rock for at least 50 feet.. Drill to 11762'. Note: This mud system started at 1.5% Lubetex. We have since pumped pills containing a total of 2 drums Lubetex, which has brought the system up to 2.2% Lubetex. Mix a another drum of lubetex in a 30 bbl pill and pump all of it. We should now have a system with 2.5% lubetex. 15:30-16:15 0.75 DRILL P PROD1 Drill. Getting what looks like stator rubber over the shakers. Also, stalls becoming easier. Call it quits at 11776'. 16:15 -19:15 3.00 DRILL N DFAL PROD1 POOH for motor failure. EOP @9500'. 19:15 - 21:55 2.67 DRILL N DFAL PROD1 OOH. Change out motor and orienter. Bit and bleed sub OK. Put 1.5 deg motor. Download resistivity. Cut 30' of pipe. Surface test on orienter OK. Install new CTC. 21:55 - 22:15 0.33 DRILL N DFAL PROD1 RIH w/1.5 motor. SHT OK. 22:15 - 00:00 1.75 DRILL N DFAL PROD1 Continue RIH. 3/23/2002 00:00 - 00:30 0.50 DRILL N DFAL PROD1 Continue RIH. 00:30 - 02:10 1.67 DRILL N DFAL PROD1 Log tie-in. Correct depth (+26'). RIH tag TD 11801', which is 25' deeper than where we left bottom last night. Geo decided not to make this +26' correction for now -- will take a closer look at logs. 02: 1 0 - 03:00 0.83 DRILL N DFAL PROD1 Orienting. 03:00 - 04:45 1.75 DRILL P PROD1 Drill ahead. 2.6/3090/25R. Drill to 11,822'. 04:45 - 06:00 1.25 DRILL P PROD1 Orient. Struggle getting clicks. 06:00 - 07:30 1.50 DRILL P PROD1 Drill to 10840'. Trying to get about 120' TF. Getting as much as 60 deg reactive, or orienter trouble -- keeps sending us back to 90L. Continue taking a click at a time to get where we want. Mucho off bottom time. Finally got several clicks and decided that we neede to drill straight down anyway (97 deg). 07:30 - 09:15 1.75 DRILL P PROD1 Drill with 180 TF to 11940'. 09:15 - 09:50 0.58 DRILL P PROD1 Orient back around to level out. 09:50 - 10:10 0.33 DRILL P PROD1 Drill to 11960', stacking. 10:10 -10:50 0.67 DRILL P PROD1 Wiper to window. Pulling heavy with MW at 11565', pull heavy wlo motor work 11545'. 10:50 - 11:40 0.83 DRILL N MiSe PROD1 Log tie-in at window. Correct depth (32'). 11 :40 - 12:15 0.58 DRILL P PROD1 RIH. Tag TD 11988'. 12:15 - 12:45 0.50 DRILL P PROD1 PUH, check TF. Orient. 12:45 - 13:45 1.00 DRILL P PROD1 Drill. Hard, slow drilling 12010' - 12036'. 13:45 -15:15 1.50 DRILL P PROD1 Orient around. Drill a couple feet to 12038', two stalls, losses started at 1.0 BPM. Lost TF. Orient around again. 15:15 - 16:10 0.92 DRILL P PROD1 Drill 2.7/1.0 at 90L TF. Returns improving to 2.7/1.7 within first 10'. ROP improved -- back to about 80 FPH, then hit hard spot again at 12058'. Drill to 12070'. Stack negative weight, trying to get a bite -- only slight motor work. 16:10 - 17:00 0.83 DRILL P PROD1 Orient one click, but can't get it. Finally got it. 50% of our time Printed: 4/1/2002 11:16:19AM Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: '} ) ,BPEXPLORA TION Operations SUrnrnaryR~port Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S PageS.of 14 Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Date 'From - To Hours Activity Code NPT Phase, D:escription of Operations 3/23/2002 16:10 - 17:00 17:00 - 17:45 0.83 DRILL P 0.75 DRILL P PROD1 PROD1 17:45 - 18:50 1.08 DRILL N DPRB PROD1 18:50 - 22:30 3.67 DRILL N DPRB PROD1 22:30 - 00:00 1.50 DRILL N DPRB PROD1 3/24/2002 00:00 - 01 :00 1.00 DRILL N DPRB PROD1 01 :00 - 03:45 2.75 DRILL N DPRB PROD1 03:45 - 04:15 0.50 DRILL N SFAL PROD1 04: 15 - 06:00 1.75 DRILL N DPRB PROD1 06:00 - 07:00 1.00 DRILL N DPRB PROD1 07:00 - 09:30 2.50 DRILL N DPRB PROD1 09:30 - 10:00 10:00 - 10:45 10:45 - 17:15 0.50 DRILL P 0.75 DRILL P PROD1 PROD1 6.50 DRILL N DPRB PROD1 on bottom today has been orienting. Drill to 12075'. Lost all returns. 400 psi loss in CTP to 2800 psi; 7k gain in wt to 53k. Drill ahead 2.8/2800/75L TF, no returns to 12090'. Still losing inclination. Need to get that TF up. Orient. Unable to orient. POH to change orienter. POH OOH. LD BHA #13. LD resistivity, motor and orienter. P/U 1.25 deg motor. Place bleed sub above orienter as per Weatherford recommendation. Making up new BHA. Test orienter on surface. OK. RIH w/BHA #14. SHT. OK for MWD. Not getting clicks. At tie-in depth. Got a click here. Lost pump charge. Log tie-in. Good MWD signal. Correct depth (+62'). RIH. Effects of lower BHP apparent -- sawall the shales with either motor work or weight; had to get rough with some of them to get through. Tag TD 12100'. Check TF -- floating. Bad signal from MWD, but cleaned up. TF at 90L. Need at least 2 or 3 clicks before we can drill anything. Attempt to orient. 0 for 4. Try RIH quickly while orienting. 0 for 2. SI reel valve with pump down to eliminate continued suck thru charge pump. 0 for 2. Prep to pump down the backside. Line-up Dowell pump on coil (hope it's not too noisy for MWD signal). Line-up Nabors pump on backside. Pump 3 BPM down backside and 2.6 BPM down coil. Continue pumping down backside 3.0 BPM while trying to get clicks. 0 for 2. Try to get a click by keeping Dowell pump down for 5 minutes with reel isolated and cycling pipe back and forth. Need about 3.5 BPM pumping down backside to keep hole full. Looks like we finally got a click. Currently at 50L. RIH and see where we're at on bottom. Drill 2.6/2050 with 50L TF. ROP 150 FPH. Drill 12168'. Continuous surveys bad. Pump up survey. Didn't get it. Try again. Unfortunately, we got some clicks in the process, yet we haven't been pumping down the backside. It's a 2-1/2 hour struggle to get the clicks when we need them, but 10 minutes to get them when we don't want them. Orient wlo pumping down the backside. Nothing. Line-up Nabors again on backside and fill 3.5 BPM. Line-up Dowell on coil. Orient. Spending just as much time clicking as waiting for confirmation of TF at surface -- poor signals, probably from being on water vs mud. Trying to duplicate what worked for us this morning. Finally got two clicks -- currently at 120R, only 180 deg to go -- looks like pumping down backside and shutting in coil a minimum of 5 min between pump cycles is our best shot at getting clicks. Continue orienting. Got to 120L, but then next click shot us to high right (#?/!@%*!). PUH. Try getting four clicks a couple hundred feet off bottom. RIH. Difficult working back thru shales to bottom -- required ramming speed. Check TF. Got 3 of 4 clicks. Don't know if this was from shales knocking us around or successful clicks. Work TF on bottom. Out of water for backside; try getting Printed: 4/1/2002 11: 16: 19 AM ) ) BP EXPLORATION Operations....Sumtna.yRépórt .. På~e 9 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Date From - Tò Hours Activity Code ,'NPT Phase Description of Operations 3/24/2002 10:45 - 17:15 6.50 DRILL N DPRB PROD1 clicks just using the 5-minute delay technique. Got a couple clicks but not consistent. 17:15 - 18:00 0.75 DRILL N DPRB PROD1 Paragraph break. Pump 30 bbls of crude in coil. SD. Well is not on a major suck thru coil with the crude in. Try orienting "quickly" without 5 minute delay and without pumping down backside. Got 1 :1. And got to where we want. Switch back to Nabors pump down coil with Dowell pump still on so we don't take a click. 18:00 - 18:30 0.50 DRILL P PROD1 Drill 140 FPH to 12205'. Drill to 12211'. 18:30 - 20:00 1.50 DRILL N DPRB PROD1 Orienting. Now we're have a tough time with crude in the coil. Drill 90L to 12225'. 20:00 - 00:00 4.00 DRILL N DPRB PROD1 Wiper trip to window to check/work shales. Pulled heavy gradually from 12110' (55k)- 12080' (70k). No motor work over entire interval. BHA across fault zone(s). Work free down. Keeps pulling heavy in fault zone. Limit pull to 65k and inch pipe to 12075'. Still free in downward direction. Work pipe wlo pumps, pumping down backside, crude down coil, crude down backside. Work the way up to 12074. Pump down through backside with both pumps. Continue working pipe. 3/25/2002 00:00 - 00:45 0.75 DRILL N DPRB PROD1 Working pipe circulating down coil, crude still on backside. Cycle pipe quickly (50 FPM ish) and over greater length, pulling up to 75K. Popped free, draggin a little for about 30' then clean (65k). 00:45 - 02:00 1.25 DRILL N DPRB PROD1 POH to window. See some motor work @ 11710' & 11516'. Continue pulling to the window. 02:00 - 04:00 2.00 DRILL N DPRB PROD1 RIH. Weight transfer problems @ 11920'. Work to 11946'. Unable to go deeper. Pump through backside. Pump through coil. 04:00 - 05:15 1.25 DRILL N DPRB PROD1 POH to window. Clean pick up. Work from 11946 to window while waiting on mud pill. 05:15 - 07:00 1.75 DRILL N DPRB PROD1 Attempt to work past 11945'. Starting to see motor work here. Load mud in coil. Seeing some returns -- crude. 51 backside, finish loading coil with mud at 2.5 BPM (WHP leveled off at 220 psi). 07:00 - 08:15 1.25 DRILL N DPRB PROD1 Bullhead kill well down backside at 3.0 BPM; 800 psi initial (recall yesterday, no pressure pumping down backside at 3.0 BPM). Lost pipe movement up. Moving free only in 11945' - 11930' window. SD bullhead kill on backside. Work pipe free. Continue bullheading down backside. Pump 150 bbls, final WHP = 300 psi. Check for flow. No flow. Est circ down coil. 2.5 BPM, no returns, so hole is not packed off below us. 08:15 - 09:15 1.00 DRILL N DPRB PROD1 Wiper to window and tie-in. Hole very clean PUH -- no tight spots noted. 09:15 - 10:00 0.75 DRILL N DPRB PROD1 Log tie-in. Correct depth (+17'). 10:00 - 10:45 0.75 DRILL N DPRB PROD1 RIH. "Saw" shales at 11548' and 11725' with a little motor work but the hole is generally very clean. Tag 11954'. 10:45 - 12:15 1.50 DRILL N DPRB PROD1 PUH. Check TF. 65R. This is close to TF we drilled this section at. RIH. Attempt to motor thru tight spot. Wt check 60k up; 14k down. From 11954', push negative weight to 12105'. Little to no MW, but PU at 12105' and stall. CTP broke over but wt didn't, dragging heavy 5k to 15k over to 12000' with no motor work. Pull to 75k here, then broke back to 60k. Pull clean to 11900'. RIH. Lost 5k at 12000'. RIH to Printed: 4/1/2002 11: 16: 19 AM .) ) BPEXPLORATION Opel7ations~ Summ:aryReport Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S [Date From - To Höurs Activity Code NPT Phase 3/25/2002 10:45 - 12:15 1.50 DRILL N DPRB PROD1 12:15 -13:45 1.50 DRILL N DPRB PROD1 13:45 - 14:15 14:15 - 15:15 0.50 DRILL N 1.00 DRILL N DPRB PROD1 DPRB PROD1 15:15 - 18:30 3.25 DRILL N DPRB PROD1 18:30-21:30 3.00 DRILL N DPRB PROD1 21 :30 - 23:30 2.00 DRILL N DPRB PROD1 23:30 - 00:00 0.50 DRILL N DPRB PROD1 3/26/2002 00:00 - 00:30 0.50 DRILL N DPRB PROD1 00:30 - 01:10 0.67 DRILL N DPRB PROD1 01:10-02:30 1.33 DRILL N DPRB PROD1 02:30 - 03: 15 0.75 DRILL N DPRB PROD1 03:15 - 04:20 1.08 DRILL N DPRB PROD1 04:20 - 06:00 1.67 DRILL N DPRB PROD1 06:00 - 06:45 0.75 DRILL N DPRB PROD1 06:45 - 08:45 2.00 DRILL N DPRB PROD1 08:45 - 09:00 09:00 - 11 :00 DPRB PROD1 DPRB PROD1 0.25 DRILL N 2.00 DRILL N Page to of14 Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Description ofOperàtions ' 12030'. Check up wt. Pull 70k to 75k to 11966', all with near flat-line CTP, then 65k to 11850'. RIH to 11979', push negative wt to 12024'. Pull75k to 85k to 11960', stall, broke back, but still pull heavy 70k to 11850'. Pull to 11524', seeing every shale. RIH. MW or tag in all shales 11690' - 11950'. Push hard starting 11950' , with and without MW. Work BHA to 12123' with negative weight the entire way, very little motor work. PUH 75k to 85k bottom 200'. "Take-a-breather" wiper trip. RIH. Inch along with negative weight to 12135'. Little motor work. Also, we have gradually lost about 600 psi CTP since this morning when we started to ream the fault area. Continuous surveys indicate possible sidetrack, but doesn't matter at this point. Concern: Entire BHA is past fault. Even if we had sidetracked, we should be drilling 150 FPH as we did yesterday in this area. Pump 15 bbl Lubetex pill to see if this helps the slide. Nope. POOH to check tools. OOH. Check out tools. Nothing wrong with BHA. Decide to pump cement. call cementers. MU nozzle. RIH to EOP. Corrected -103'. PJSM RIH to 11450'. PU to the window. Tight spot at 11292'. POH to 1 0630'. Wait on cementers. F'fll backside 3 BPM w/Nabors pump. Pump 2 bbls of fresh water ahead. PfT cement lIines @4000 psi. OK. Pump 40 bbls of cement down the coil @ 2 BPM/1700 psi. 17 ppg, 0.25 ppb cellflake. SD backside. SI choke. Switch to rig pumps. Bullhead cement at 2.5/870 psi. No wellhead pressure. POH to 10430'. Reduce rate. Mixing second batch of cement. Pump second batch of cement. Bull head cement at 2.3/505 psi. No wellhead pressure. Call for more cement. Wait on delivery of cement. Crew change safety meeting. Discuss plans: Will use 18 ppb aggregate in 40 bbls cement. Will put crude down backside in order to keep a full column. This crude will not help us get a squeeze, but will allow us to see start of squeeze. Pump 100 bbls of crude down backside at 3.5 BPM. Caught fluid at 26 bbls. SI backside. WHP = 130 psi. RIH to drift openhole to 11400'. Clean. PUH. Place nozzle above window at 1 0630' Safety meeting with cementers. Mix on the fly and load coil with 17 ppg cement: 5 bbls neat, 30 bbls w/18 ppb aggregate, 5 bbls neat. Took about 7 bbls to catch fluid in coil. Load in coil at 2.5 BPM; 350 psi WHP. Swap to Nabors pump (quick swap) and bullhead cement 3.0 BPM. Took 6 bbls to catch fluid again, and CTP went from 700 psi to 2600 psi; WHP up to 450 psi. With lead of cement at fault, WHP started building and falling from 400 psi - 700 psi, teasing us that we might get a squeeze. By the time aggregate hit the fault, lost all fluctuation in WHP -- no hint of flow Printed: 4/1/2002 11:16:19 AM ) ) BP EXPLORATION ,Operations Summary Re,port Page 11 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y -37 A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Date From-. To Hours Activity Code NPT Phase Description of Operations 3/26/2002 09:00 - 11 :00 2.00 DRILL N DPRB PROD1 resistance. Pump it away. Did not want to slow down pump beacuse of likely high side channeling. 11:00-15:15 4.25 DRILL N DPRB PROD1 Discuss next step with Anchorage gang. Will try conventional LCM. Wait on MI to mix and deliver. 15:15-15:30 0.25 DRILL N DPRB PROD1 PJSM discuss pumping LCM pill. 15:30 - 16:50 1.33 DRILL N DPRB PROD1 PT lines to 4k. With coil at 10630' and shut-in annulus pumped 10 bbls Flopro followed by 38 bbls 40#/bbl LCM mud. Bullhead the 10 bbls mud to loss zone and sen annulus pressures climb from 200 to 700 psi. after pumping 2 bbls LCM 0 loss zone presssure increased to 2000 psi. Shutdown pump pressure dropped to 1800 psi. Bump back up to 2000 psi. 16:50 - 19:15 2.42 DRILL N DPRB PROD1 Circulate out remainder of LCM washdown to 11450'. Unable to go further. Take returns to outside tanks. 19:15 - 19:30 0.25 DRILL N DPRB PROD1 PJSM for placement of kick-off cement plug. 19:30 - 20:15 0.75 DRILL N DPRB PROD1 PT lines to 4k. Pump 7 bbls 17.0 ppg neat "G" cement. Switch to Nabors pump and displace to end of coil at 11450'. Lay-in 1 : 1 TO 1 0900'. pu II to safety at 1 0500'. 20: 15 - 20:45 0.50 DRILL N DPRB PROD1 WOC 20:45 - 21 :30 0.75 DRILL N DPRB PROD1 Switch to .5# bio water and dress off cement back down to 11200'. Notice bio water returns early. No cement returns seen at surface? 21 :30 - 22:00 0.50 DRILL N DFAL PROD1 TOH pumping 2.5 bpm monitoring returns. At 9126' coil operator noticed fluid spraying from coil coming over gooseneck. Quickly shutdown pump and RIH below packoff. Lose of weight on indicator. Checked to see if we still had the coil by closeing the master valve. Valve completely closed coil is parted. 22:00 - 23:15 1.25 DRILL N DFAL PROD1 End of coil just at the injector chains. Pull pins from the stuffing box. Trolley up. Dressed EOP. Stab back on stuffing box. RIH 30'. 23: 15 - 00:00 0.75 DRILL N DFAL PROD1 Circulate wait on fishing tools. Top of fish +1- 2325'. 3/27/2002 00:00 - 04: 15 4.25 DRILL N DFAL PROD1 Revaluate present fishing tools available given the situation. Should a disconnect be required during fishing operations it would leave a 1.25" ID bore. This would prevent the use of a CT chemical cutter with a 1.6875" OD (the only tool available). Tracking locations of other tools that may work and other possible fishing stratigies. While waiting for further imput from town crew will proceed with scheduled BOP test. 04:15 - 05:15 1.00 DRILL N DFAL PROD1 Freeze protect coil. 05: 15 - 05:45 0.50 DRILL N DFAL PROD1 Set TWC 05:45 - 13:30 7.75 DRILL N DFAL PROD1 Test BOPE. AOGCC rep Lou Grimaldi has wavied witnessing test. 13:30 - 14:10 0.67 DRILL N DFAL PROD1 Pull TWC 14:10 -14:30 0.33 DRILL N DFAL PROD1 PJSM covering plu of bha and milling operations. Review with crews future plans for this well. 14:30 - 16:15 1.75 DRILL N DFAL PROD1 Cut 60' of externally worn coil. Replaced pack-off elements on injector. 16:15 -17:45 1.50 DRILL N DFAL PROD1 M/U BHA #16 and same time displace methanol from coil. 17:45 - 19:00 1.25 DRILL N DFAL PROD1 RIH tag top of fish at 2325.4'. This puts the bottom of fish at 11450'. 19:00 - 20:05 1.08 DRILL N DFAL PROD1 Milling top of CT fl 2325.4' to 2326.4' 20:05 - 20:40 0.58 DRILL N DFAL PROD1 TOH Printed: 4/1/2002 11: 16: 19 AM ) ), BP EXPLORATION OpèrationsS u rnmaryRè port Page 12 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 DatEr From - To Hours: ActivitY Code NPT Phase Descriptic:m of Operåtions . 3/27/2002 20:40 - 21 :45 1.08 DRILL N DFAL PROD1 LID BHA #16 and freeze protect coil. 21 :45 - 00:00 2.25 DRILL N DFAL PROD1 Work at drifting 2 3/8" PH-6 tbg to 1.75". (It came to location full of snow and ice. Covered with tarp and have used Tioga heaters to unthaw since it's arrival to location) 3/28/2002 00:00 - 03:00 3.00 FISH N DFAL PROD1 Continue prepping PH-6 tbg string. (Examined the mill used on the last run. Observed a piece of metal within the mill. Broke the mill down. A 1/4"sq. X 4" strip of coil was loosely wrapped just below the cross sectional cutting structure of the mill. Hard to determine how this may have affected the actual milling process as it fell out while breaking the mill down. Also no apparent wear on the carbide within the bronze matrix on the same cross sectional cutting structure. Although some wear to the bronze nodes on the leading edge of cutting structure. 03:00 - 03:50 0.83 FISH N DFAL PROD1 Pick the milling BHA back up. P/U injector and displace methonal. 03:50 - 04:30 0.67 FISH N DFAL PROD1 RIH with milling assembly 04:30 - 05:25 0.92 FISH N DFAL PROD1 Start milling. Free spin 1500. 2-300 psi motor work. Doesn't appear to be milling anything. Like riding on a bearing. 05:25 - 06:15 0.83 FISH N DFAL PROD1 TOH to check mill wear. FP coil 06: 15 - 06:35 0.33 FISH N DFAL PROD1 Crew change PJSM 06:35 - 07:00 0.42 FISH N DFAL PROD1 LID mill. Mill shows very slight wear on the cross sectional cutting area. Brass nodes worn down just enough to expose 2 small carbides. This may account for the small amount of motor work we seen intially on this run and then the flattening out of motor on-bottom pressure. Still believe brass nodes are actting like a bearing surface upon the coil cross-sectional area. As a precaution we PT'd the BHA & coil to 1500 psi thinking a hole may have developed while milling. We seen a 150 psi drop while milling and could not get it back by increasing WOB. 07:00 - 08:20 1.33 FISH N PROD1 FP coil and setback on deck. Rig-up floor to run PH-6 and PJSM covering the p/u of this BHA. 08:20 - 12:30 4.17 FISH N PROD1 P/U BHA#17 2321.24'. Check up/dn wt 18k. 12:30 - 15:00 2.50 FISH N PROD1 R/U 2" hose to PH-6 and circulate wait on slickline unit 15:00 - 16:00 1.00 FISH N PROD1 P/U 1 stand and pup jts PH-6. RIH work overshot on CT. Pull to 55k (45k string + 10k block) no pipe movement noticed. 16:00 - 17:00 1.00 FISH N PROD1 RlU slickline unit. 17:00 - 22:30 5.50 FISH N PROD1 RIH wI 1.70" drift. Tagged top of coil at 2326'. Once into top work through having to use spangs. Make 10 passes inlout of top getting progressively better each time. RIH to 9383' and ran into something that acts like thick fluid working drift down to 9435 in 1 hr. No overpulls while working down. Decide that this deep enough. Past the first 4 GLM @ 3222', 5768', 7685', 9042' Pull back up through top of coil. Plan to plu 1.74" swedge and continue working top of coil. 22:30 - 00:00 1.50 FISH N PROD1 RID bales and rlu 2" x 20' slings to blocks/elevators. 3/29/2002 00:00 - 02:30 2.50 FISH N DFAL PROD1 Pick-up to 38k on pipe. Run 1.74" swedge through top of coil tbg without much difficulty. POH with swedge. 02:30 - 03:30 1.00 FISH N DFAL PROD1 RID slickline unit. 03:30 - 04:30 1.00 FISH N DFAL PROD1 Wait on SLB wireline. 04:30 - 07:00 2.50 FISH N DFAL PROD1 PJSM with night crews. RIU SLB wireline unit and reconfigure Printed: 4/1/2002 11: 16: 19 AM ) ) BPEXPLORA TION Operati,ons Summary Report Page 13 of 14 Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y -37 A REENTER+COMPLETE NABORS NABORS 3S Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 Gate From - To Hours Activity Code NPT Phase Description of OÞ~ratiòns 3/29/2002 04:30 - 07:00 2.50 FISH N DFAL PROD1 slings/bales to fit SLB. PSJM with dayhands. 07:00 - 08:00 1.00 FISH N DFAL PROD1 P/U 18' wt bars and oil jars. 08:00 - 10:25 2.42 FISH N DFAL PROD1 P/U 55k wt on drillers console (45k string wt) RIH making a dummy run with wt. bars. Unable to stab through top of coil. Slack off to 45k and 40k no-go. P/U to 60k and fell through ok. RIH some resistence at 8640', made it to 9375' and hit the same problem from the previous drift run. Slacked off to 45k to simulate cut string wt values. TOH without problem, slight overpull at top of CT. 10:25 - 18:20 7.92 FISH N DFAL PROD1 PJSM on handling chem cutter. P/U same. P/U to 60k. RIH. Went through top of CT but stopped at 2390'. Work pipe at various weights. POH and drop bottom centrilizer. RIH tool stopped same place. Try to pump down without success 1:1 returns .7 bpm POH I/d tool, drop GR plu 1 weight bar. Pull to 60k. RIH went past 2390' with no problem. RIH to 9375'. P/U out of any contaminated fluid to 9315'. Slacked off string weight to 50k. Fired cutter @ 1720 hrs good weight reduction back to 38k. P/U tool freely POH with cutter 18:20 - 19:00 0.67 FISH N DFAL PROD1 Crew change. PJSM about lid chemical cutter. LID same. 19:00 - 20:20 1.33 FISH N DFAL PROD1 RID sheaves, sling, eline unit etc. prep to lid 2 3/8" PH-6 tbg. 20:20 - 00:00 3.67 FISH N DFAL PROD1 Start laying down PH6 (72 joints total) 3/30/2002 00:00 - 01 :00 1.00 FISH N DFAL PROD1 Finish LD PH6, top of coil fish at surface. PU, set BOP pipe slips on coil, cut coil, LD Baker overshot. Scaffolding crew on location at 00:00 01 :00 - 02:00 1.00 FISH N DFAL PROD1 Set up scaffold as work platform approx. 5' above rig floor. Need 7-8' of coil exposed above rig floor to allow spoolable connector to be swallowed by chains on injector. 02:00 - 05:30 3.50 FISH N DFAL PROD1 Move injector into place on edge of rig floor, hand cut and dress both ends of coil (fish and "reel side" of CT). Line up reel side CT end w/ spoolable coil connector and MU. PU injector and position above coil fish, align coil w/ spoolable connector and attempt to MU. Pull test unsuccessful, we got more turns than expected after both CT ends made up to spoolable connector. Phone Nordic for 2nd spoolable connector. Dress both ends of coil, MU 2nd spoolable connector to both ends of CT. Pull test 25K over, good test. 05:30 - 06:30 1.00 FISH N DFAL PROD1 Lower injector and swallow spoolable connector into chains, pooh, pipe parted just as connector was spooling on backside of reel. Well-side end lodged in place behind spool. Spool has significant backlash to deal with. Close and lock 2 3/8" pipelslips rams. 06:30 - 11 :00 4.50 FISH N DFAL PROD1 Round up equipment to secure EOP at reel side, man-basket, new spoolable connector etc. PJSM cover steps to secure EOP. 11 :00 - 12:30 1.50 FISH N DFAL PROD1 Manbasket fuel pump failed, found leaking. WO another manbasket to arrive. Review plans to handle coil. 12:30 - 16:00 3.50 FISH N DFAL PROD1 Install clamp to EOP and secure to forklift with 3/8" cable. RIH keeping tension with forklift until EOP cleared manstand. Strip off of well and cut coil 8' above floor. Clear coil from injector. 16:00 - 18:00 2.00 FISH N DFAL PROD1 PJSM about handling birdnest on the reel. Remove wind-on coil connector, trim end. Re-stab coil to injector. 18:00 - 22:00 4.00 FISH N DFAL PROD1 Start cutting pipe from reel. Cut pipe in 15' sections, continue this proces for two hours. Estimate we have approx. 1500' of Printed: 4/1/2002 11:16:19 AM ) ') ./ BPEXPLORA TION Operations SumrnaryReport Legal Well Name: Common Well Name: Event Name: Contractor Name: Rig Name: Y-37 Y-37A REENTER+COMPLETE NABORS NABORS 3S Date From - To Hours Activity Code NPT Phase 3/30/2002 18:00 - 22:00 4.00 FISH N DFAL PROD1 22:00 - 00:00 2.00 FISH N DFAL PROD1 3/31/2002 00:00 - 03:30 3.50 FISH N DFAL PROD1 03:30 - 04:00 0.50 FISH N DFAL PROD1 04:00 - 05: 15 1.25 FISH N DFAL PROD1 05:15 - 07:00 1.75 DEMOB P COMP 07:00 - 09:00 2.00 DEMOB P COMP 09:00 - 14:00 5.00 DEMOB P COMP Page 14 of 14 Start: 3/12/2002 Rig Release: 3/31/2002 Rig Number: Spud Date: 3/13/2002 End: 3/31/2002 DescriþtiOn ..òfOperations coil (to cut in 10-15' sections) to remedy bird nest in reel...decide to try a different approach, cutting sections is time consuming. (Coil cutter does not perform nearly as well as Nordic's.) Blind end of reel coil and thread back through mast to the pad beside the coil cab. PJSM. Attach end of coil to loader (to guide coil) and unspool1860' until the bird nest is manageble, respool coil. Cut & dress both ends of coil (fish and reel ct), MU new spoolalbe CT connector (this one is longer then the others), align ends of CT. Attach spoolable connector to reel end, having trouble attaching to top of fish. Attach new spoolable connector to both ends of coil. Test connection, slowly ramp up to 25k Ibs over, closely inspect connection & repeat pull test to 25K, good test. Rig down scaffolding and prepare to pull CT fish out of the hole. Postion injector to swallow the new connection with chains, open pipe slips, Begin POOH w/ 7000ft. long CT fish. Position connection near reel and install a backup chain wI clamps on either end of the spoolable connector. (To prevent birdnest in reel if coil parts again) Remove horsehead on level-wind to allow room for clamps to pass. Spool the connection onto the reel, success! Reassemble Horsehead. Resume POOH with CT fish. Freeze protect with MeOH from 2000' as we POOH. Downhole end of CT fish at surface. Close MV. Start rId preparations. Set BPV. PJSM. Stab injector back on lubricator. Blowdown coil wI N2 through mudcross back to opentop tank. Set injector back on deck. RID DS Unit #4. ND BOPE. Install tree cap and test to 3500 psi. Nabors 3S released at 1400 hrs 3-31-2002 Last report. '~Ç-.Q~~\ç Printed: 4/1/2002 11: 16: 19 AM ') ,) Well: Field: API: Permit: Y-37A (Suspension) Prudhoe Bay Unit 50-029-22403-01 202-046 Rig Accept: 03/13/02 Rig Spud: 03/16/02 Rig Release: 03/31/02 Drilling Rig: Nabors 38 POST RIG WORK 04/19/02 INSTALL GENERIC GL DESIGN IN STAT'S #6 & #7. SET 1500# TRO W/ BK LATCH @ 3206'. 04/20/02 INSTALL GENERIC GL DESIGN. SET 1" (20/64") OGLV IN STA #6 @ 5752' SLM. PULL SSCS. WELL RELEASE TO PAD OPERATOR. ATTEMPTED, UNSUCCESSFULLY, TO FLOW WELL. 06/23/02 ATTEMPT TO SET GUIDE TOOL ON TOP OF COIL FISH. MADE MULlPLE GAUGE RING RUNS, BAILER RUNS, AND MAGNET RUN, DEEPEST RUN 9326' WLM. RETRIEVED 4 PIECES OF METAL ON INITIAL BAILER RUN ALONG WITH MUCH MUD SLURRY AND AN 8" x 2 1/2" PIECE OF MANGLED METAL (COILED TUBING) W/ MAGNET. 06/24/02 RAN ENTRY GUIDE & SET ON COIL TUBING STUB @ 9327' SLM (3 + FEET DEEPER THAN PREVIOUS TAGS INDICATING THAT GUIDE SWALLOWED COIL STUB AS PLANNED). RAN WI 1.7 SWAGE ON 5' ON 1.5 STEM TO 9322' SLM, GAVE TOOLS ONE JIGGLE AND BOUNCED THRU GUIDE SUB, GOT PICK UP @ 9330',9335 & 9340, TOOLS WERE STICKING, DISCUSS RUN WI COMPANY REP, DECIDED THAT TOOLS WERE DEEP ENOUGH INTO COIL SUB (18'). LEFT WELL SHUT-IN. 06/28/02 WELD ON CONNECTOR. MU JARS, 1.69" MOTOR, 1.82" PDSM. RIH. LOAD HOLE WITH 1% KCL. ENTERED 2-3/8" AT 9327' WLM OK, CONTINUE TO 9384'. STALLED MOTOR, NO FORWARD PROGRESS. PU TO LINER TOP, ENCOUNTERED RESTRICTION AGAIN AT 9342'. WORKED 2 HOURS WITH NO PROGRESS. POH. MILL IN GAUGE, 3 CHUNKS GONE FROM MATRIX. LD MILL, MOTOR & JARS. PU 1.69" DJN & BHA (OAL=4.47'). RIH, TAG AT 9340' CTMD. ATTEMPT TO MOVE RESTRICTION BY PUMPING AND RECIPROCATING PIPE WITHOUT SUCCESS. POH. PU 1.84" 3 BLADE JUNK MILL. DRY TAG @ 9351'. MILL TO 9369', CONTINUE MILLING. 06/29/02 MILUPUSH DOWN TO 9436.5'. TRIP UP OUT OF 23/8" COIL TO 9280'. MILUPUSH TO 9466'. HARD TAGS/STALLS. TIME MILL TO 9470'. CONTINUE RIH TO 9592'. MILL ON JUNK. WORK TO 9650.6'. OVERPULL TO 27000 LBS. NO FORWARD PROGRESS. POH TO CHECK MILL. MILL IN GAUGE, NO APPARENT DAMAGE TO BHA, EXCEPT FOR ONE LONGITUDINAL SCAR ON THE TOP MOTOR SUB (1/8" X 2"). RIH, FREEZE PROTECT TUBING WITH 35 BBLS AND FLOWLINE W/ 25 BBLS MEOH. RIG DOWN PENDING SLICK LINE DIAGNOSTIC WORK. SUSPECT 2-3/8" IS IN COMPRESSION AND BUCKLED. MOTOR WORK SEEN IS DUE TO THE CONTACT BETWEEN THE 1.69" BHA AND THE ID OF THE 2-3/8". WELL TO REMAIN SHUT IN. 01/08/03 TIO= 0/500/200 PRE BLEED FOR OA BUR. OA FL @ SURFACE. WELL IS SI. ANADRILL SCHLUMBERGER Survey report Client...................: BP Exploration (Alaska) Inc. Field....................: Prudhoe Bay Well. . . . . . . . . . . . . . . . . . . . .: Y-37A API number...............: 50-029-22403-01 Engineer. . . . . . . . . . . . . . . . .: M. Aburto RIG:.....................: Nabors 3S / SLB # 4 STATE: . . . . . . . . . . . . . . . . . . .: Alaska ----- Survey calculation methods------------- Method for positions.....: Minimum curvature Method for DLS.... .......: Mason & Taylor ----- Depth reference ----------------------- Permanent datum..........: MEAN SEA LEVEL Depth reference..........: GR Tie-In @ 10670 ft GL above permanent.......: 0.00 ft KB above permanent.......: -50000.00 ft DF above permanent.......: -50000.00 ft ----- Vertical section origin---------------- Latitude (+N/S-).........: 0.00 ft Departure (+E/W-)........: 0.00 ft ----- Platform reference point--------------- Latitude (+N/S-).........: -999.25 ft Departure (+E/W-)........: -999.25 ft Azimuth from rotary table to target: 111.12 degrees [(c)2002 Anadrill IDEAL ID6_1C_10J 26-Mar-2002 11:58:47 Spud date................: Last survey date. ..... ...: Total accepted surveys...: MD of first survey.. .....: MD of last survey........: " " Page 1 of 3 15-Mar-02 26-Mar-02 37 10616.00 ft 12225.00 ft .~ ----- Geomagnetic data ---------------------- Magnetic model.. .........: BGGM version 2001 Magnetic date... ..... ....: 14-Mar-2002 Magnetic field strength..: 1149.87 HCNT Magnetic dec (+E/W-).....: 26.31 degrees Magnetic dip. '.'. .... ....: 80.76 degrees ----- MWD Reference Reference Reference Tolerance Tolerance Tolerance survey Reference G. . . . . . . . . . . . . . : H..............: Dip. . . . . . . . . . . . : of G...........: of H. . . . . . . . . . . : of Dip.... . . . . . : Criteria --------- 1002.68 mGal 1149.87 HCNT 80.76 degrees (+/-) 2.50 mGal (+/-) 6.00 HCNT (+/-) 0.45 degrees '~' ----- Corrections --------------------------- Magnetic dec (+E/W-).....: 26.31 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-)....: 26.31 degrees (Total az corr = magnetic dec - grid conv) Sag applied (Y/N). .......: No degree: 0.00 <! - ANADRILL SCHLUMBERGER Survey Report 26-Mar-2002 11:58:47 Page 2 of 3 -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ Seg Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool qual (ft) (deg) ( deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type type -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ 1 10616.00 17.00 161.60 0.00 8754.72 3773.09 -4623.73 2258.79 5145.97 153.96 0.00 TIP 2 10650.00 16.66 162.81 34.00 8787.26 3779.28 -4633.10 2261.80 5155.71 153.98 1.44 MWD 3 10667.95 21.70 163.85 17.95 8804.21 3782.89 -4638.75 2263.48 5161.53 153.99 28.14 MWD 4 10707.25 39.93 164.63 39.30 8837.82 3794.89 -4658.06 2268.89 5181.25 154.03 46.40 MWD 5 10764.60 63.95 165.21 57.35 8872.92 3821.33 -4701.35 2280.52 5225.27 154.12 41.89 SP 6 10774.63 67.98 162.89 10.03 8877.00 3826.85 -4710.15 2283.04 5234.29 154.14 45.34 SP 10794.85 156.86 20.22 8883.29 3839.52 -4728.16 2289.66 5253.39 154.16 47.86 SP '-~ 7 75.78 8 10821.84 80.48 150.06 26.99 8888.85 3859.04 -4751.76 2301.47 5279.77 154.16 30.16 SP 9 10835.00 80.54 147.57 13.16 8891.02 3869.31 -4762.87 2308.19 5292.70 154.14 18.67 MWD 10 10873.86 92.06 146.39 38.86 8893.53 3900.69 -4795.33 2329.29 5331.11 154.09 29.80 MWD 11 10909.30 89.80 145 .31 35.44 8892.95 3929.80 -4824.65 2349.18 5366.18 154.04 7.07 SP 12 10960.00 92.74 138.77 50.70 8891.83 3973.26 -4864.59 2380.33 5415.74 153.93 14.14 MWD 13 11018.93 91.85 127.51 58.93 8889.46 4027.76 -4904.78 2423.23 5470.73 153.71 19.15 SP 14 11096.96 90.68 116.79 78.03 8887.73 4104.22 -4946.23 2489.18 5537.26 153.29 13.82 MWD 15 11120.50 92.16 112.56 23.54 8887.15 4127.70 -4956.05 2510.56 5555.66 153.13 19.03 MWD 16 11164.00 89.55 109.50 43.50 8886.50 4171.18 -4971.66 2551.15 5588.00 152.84 9.24 MWD 17 11249.24 88.00 102.21 85.24 8888.33 4255.99 -4994.93 2633.07 5646.45 152.20 8.74 SP 18 11305.50 91.06 98.15 56.26 8888.79 4311.20 -5004.87 2688.43 5681.23 151.76 9.04 MWD 19 11343.00 90.24 94.34 37.50 8888.36 4347.44 -5008.94 2725.69 5702.54 151.45 10.39 MWD 20 11389.00 91.06 90.76 46.00 8887.84 4391.03 -5010.99 2771.64 5726.43 151.05 7.98 MWD 21 11443.00 89.28 86.65 54.00 8887.68 4440.94 -5009.77 2825.61 5751.68 150.58 8.29 MWD '---/ 22 11486.00 89.52 83.19 43.00 8888.13 4479.51 -5005.96 2868.43 5769.54 150.19 8.07 MWD 23 11527.00 91.41 83.92 41.00 8887.80 4515.86 -5001.36 2909.17 5785.92 149.81 4.94 MWD 24 11550.92 89.93 87.46 23.92 8887.52 4537.45 -4999.57 2933.02 5796.40 149.60 16.04 SP 25 11599.50 87.19 94.30 48.58 8888.74 4582.99 -5000.31 2981.54 5821.74 149.19 15.16 MWD 26 11648.50 87.84 99.55 49.00 8890.86 4630.43 -5006.21 3030.12 5851.82 148.81 10.79 MWD 27 11667.58 88.40 97.71 19.08 8891.49 4649.05 -5009.07 3048.97 5864.05 148.67 10.08 SP 28 11714.31 87.80 94.59 46.73 8893.04 4694.16 -5014.07 3095.40 5892.57 148.31 6.82 SP 29 11806.11 91.07 100.99 91.80 8893.95 4783.42 -5026.50 3186.29 5951.31 147.63 7.84 MWD 30 11860.79 97.20 101.86 54.68 8890.00 4837.15 -5037.29 3239.72 5989.17 147.25 11.32 MWD [(c)2002 Anadrill IDEAL ID6 1C 10] - .c " ANADRILL SCHLUMBERGER Survey Report 26-Mar-2002 11:58:47 Page 3 of 3 -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ Seg Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool qual (ft) (deg) ( deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type type -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ 31 11895.50 95.32 107.70 34.71 8886.22 4871.43 -5046.10 3273.07 6014.65 147.03 17.58 MWD 32 11979.12 84.68 117.16 83.62 8886.22 4954.81 -5077.92 3350.16 6083.49 146.59 17.02 SP 33 12010.50 84.88 123.33 31.38 8889.07 4985.65 -5093.65 3377.15 6111.50 146.46 19.59 MWD 34 12069.77 83.23 122.04 59.27 8895.22 5043.40 -5125.48 3426.76 6165.49 146.23 3.55 SP 35 12137.05 87.18 115.06 67.28 8900.85 5109.83 -5157.48 3485.61 6224.88 145.95 11.88 SP 36 12180.48 91.85 114.44 43.43 8901.22 5153.16 -5175.65 3525.04 6262.06 145.74 10.85 SP 37 12225.00 91.00 109.50 44.52 8900.11 5197.65 -5192.30 3566.31 6299.08 145.52 11.23 Proj. ~~ [(c) 2002 Anadrill IDEAL ID6 1C 10] - ~ <.,' ö Y -37 A Survey Report - Geodetic Schlumberger Report Date: 02-Apr-2002 Survey I DLS Computation Method: Minimum Curvature / Lubinski Client: BP Exploration Alaska Vertical Section Azimuth: 111.120° Field: Prudhoe Bay Unit - WOA (Drill Pads) Vertical Section Origin: N 0.000 ft. E 0.000 f1 Structure I Slot: V-PAD / V-37 TVD Reference Datum: MSL Well: V-37 TVD Reference Elevation: 0.000 ft relative to MSL Borehole: V-37A Sea Bed / Ground Level Elevation: 50.000 ft relative to MSL UWUAPI#: 500292240301 Magnetic Declination: +26.295° Survey Name 1 Date: V -37 A / March 26, 2002 Total Field Strength: 57492.813 n1 Tort / AHD 1 DDlI ERD ratio: 353.741° / 6709.61 ft/ 6.513 / 0.754 Magnetic Dip: 80.765° Grid Coordinate System: NAD27 Alaska State Planes, Zone 4, US Feet Declination Date: March 26, 2002 '-' Location LatlLong: N 70.26762332, W 148.83116474 Magnetic Declination Model: BGGM 2001 Location Grid N/E Y/X: N 5948825.220 ftUS, E 644540.760 ftUS North Reference: True North Grid Convergence Angle: +1.10021858° Total Corr Mag North -> True North: +26.295° Grid Scale Factor: 0.99992373 Local Coordinates Referenced To: Well Head Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD vSec NI-S EJ-W DLS Northing Easting Latitude Longitude (ft) (") (") (ft) (ft) (ft) (ft) (Q/100ft) (ftUS) (ftUS) 0.00 0.00 0.00 -79.1 0 0.00 0.00 0.00 5948825.22 644540.76 N 70.26762332 W 148.83116474 126.00 0.90 265.30 46.89 -0.89 -0.08 -0.99 0.71 5948825.12 644539.78 N 70.26762310 W 148.83117272 224.00 1.00 286.40 144.88 -2.44 0.10 -2.57 0.37 5948825.27 644538.19 N 70.26762358 W 148.83118555 316.00 1.40 282.20 236.86 -4.35 0.56 -4.44 0.44 5948825.70 644536.31 N 70.26762485 W 148.83120066 408.00 1.80 281.80 328.83 -6.88 1.09 -6.96 0.43 5948826.18 644533.79 N 70.26762631 W 148.83122098 499.00 1.70 241.80 419.79 -9.17 0.75 -9.54 1.32 5948825.79 644531 .20 N 70.26762536 W 148.83124191 592.00 1.90 210.10 512.74 -10.31 -1.24 -11 .53 1.08 5948823.76 644529.25 N 70.26761994 W 148.83125799 685.00 2.70 171.10 605.67 -9.46 -4.74 -11.97 1.84 5948820.26 644528.89 N 70.26761038 W 148.83126150 778.00 4.20 154.90 698.50 -5.90 -9.98 -10.18 1.91 5948815.04 644530.77 N 70.26759604 W 148.831247Ot 872.00 4.20 133.1 0 792.26 -0.22 -15.45 -6.21 1.69 5948809.65 644534.85 N 70.26758110 W 148.83121495~ 966.00 4.30 135.20 886.00 6.18 -20.31 -1.21 0.20 5948804.90 644539.94 N 70.26756785 W 148.83117455 1060.00 4.00 128.20 979.75 12.54 -24.83 3.85 0.63 5948800.47 644545.08 N 70.26755548 W 148.83113365 1154.00 4.60 122.90 1073.49 19.36 -28.91 9.59 0.76 5948796.50 644550.90 N 70.26754434 W 148.83108723 1247.00 4.50 124.30 1166.19 26.56 -32.99 15.73 0.16 5948792.54 644557.12 N 70.26753319 W 148.83103754 1341.00 4.40 121.90 1259.91 33.70 -36.97 21.84 0.22 5948788.68 644563.30 N 70.26752231 W 148.83098816 1435.00 4.20 135.20 1353.65 40.38 -41.32 27.33 1.08 5948784.43 644568.87 N 70.26751043 W 148.83094380 1528.00 4.30 153.50 1446.40 46.07 -46.86 31.28 1.46 5948778.97 644572.93 N 70.26749530 W 148.83091182 1622.00 4.20 158.80 1540.14 50.99 -53.22 34.10 0.43 5948772.67 644575.87 N 70.26747792 W 148.83088904 Y-37A ASP Final Survey.xls Page 1 of 5 4/18/2002-3:01 PM .' Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD vSec N/-S EJ-W DLS Northing Easting Latitude Longitude (ft) (°) (°) (ft) (ft) (ft) (ft) (0/100ft) (ftUS) (ftUS) 1717.00 4.70 162.00 1634.85 55.78 -60.17 36.56 0.59 5948765.77 644578.47 N 70.26745895 W 148.83086914 1807.00 4.70 160.20 1724.55 60.53 -67.14 38.95 0.16 5948758.84 644580.99 N 70.26743989 W 148.83084983 1899.00 5.10 158.40 1816.21 65.77 -74.49 41.73 0.47 5948751.55 644583.91 N 70.26741981 W 148.83082734 1992.00 6.00 163.50 1908.78 71.54 -82.99 44.63 1.10 5948743.10 644586.98 N 70.26739658 W 148.83080387 2086.00 7.50 161.60 2002.12 78.44 -93.53 47.97 1.61 5948732.64 644590.51 N 70.26736781 W 148.83077694 2177.00 9.10 163.00 2092.17 86.67 -106.05 51.94 1.77 5948720.20 644594.73 N 70.26733361 W 148.83074477 2271.00 12.00 158.80 2184.57 97.84 -122.27 57.65 3.19 5948704.09 644600.74 N 70.26728929 W 148.83069861 2364.00 15.10 155.30 2274.97 113.04 -142.29 66.21 3.45 5948684.24 644609.69 N 70.26723459 W 148.83062941 2458.00 17.80 154.60 2365.12 132.25 -166.40 77.49 2.88 5948660.35 644621.43 N 70.26716873 W 148.83053820 2553.00 20.00 155.60 2454.99 154.38 -194.31 90.44 2.34 5948632.69 644634.90 N 70.26709246 W 148.8304335 2648.00 22.90 154.20 2543.40 179.47 -225.76 105.19 3.10 5948601.54 644650.26 N 70.26700656 W 148.83031424-/ 2740.00 26.00 152.80 2627.14 207.62 -259.82 122.21 3.43 5948567.82 644667.92 N 70.26691352 W 148.83017670 2834.00 28.90 155.30 2710.55 239.30 -298.79 141.12 3.32 5948529.22 644687.58 N 70.26680705 W 148.83002379 2928.00 31.40 154.20 2791 .83 273.48 -341.48 161.27 2.72 5948486.93 644708.55 N 70.26669042 W 148.82986086 3022.00 33.80 154.60 2871.01 310.34 -387.15 183.15 2.56 5948441.69 644731.29 N 70.26656565 W 148.82968401 3115.00 35.40 152.10 2947.57 349.45 -434.33 206.85 2.30 5948394.98 644755.90 N 70.26643676 W 148.82949239 3208.00 37.30 152.10 3022.47 391.07 -483.04 232.64 2.04 5948346.77 644782.62 N 70.26630368 W 148.82928387 3304.00 40.40 152.50 3097.22 436.38 -536.35 260.63 3.24 5948294.01 644811.62 N 70.26615802 W 148.82905765 3404.00 41.10 150.00 3172.98 486.29 -593.57 292.03 1.78 5948237.41 644844.11 N 70.26600171 W 148.82880381 3487.00 40.70 150.40 3235.72 528.47 -640.73 319.03 0.58 5948190.79 644872.01 N 70.26587288 W 148.82858548 3580.00 40.40 151.10 3306.38 575.04 -693.48 348.58 0.59 5948138.62 644902.56 N 70.26572877 W 148.82834665 3675.00 40.10 151.10 3378.89 622.07 -747.21 378.24 0.32 5948085.47 644933.25 N 70.26558196 W 148.82810685 3768.00 39.60 150.00 3450.29 668.10 -799.1 0 407.54 0.93 5948034.15 644963.53 N 70.26544019 W 148.82787003 3862.00 39.00 153.20 3523.04 713.38 -851.46 435.86 2.25 5947982.36 644992.85 N 70.26529716 W 148.82764112 3956.00 40.70 153.90 3595.20 757.83 -905.39 462.68 1.87 5947928.96 645020.70 N 70.26514983 W 148.8274243-- 4049.00 40.30 153.20 3665.92 802.41 -959.46 489.58 0.65 5947875.41 645048.63 N 70.26500209 W 148.82720686-, 4141.00 40.10 152.80 3736.19 846.62 -1012.37 516.54 0.35 5947823.03 645076.60 N 70.26485754 W 148.82698895 4236.00 39.90 152.80 3808.96 892.23 -1066.68 544.45 0.21 5947769.27 645105.55 N 70.26470916 W 148.82676333 4330.00 39.80 152.80 3881.13 937.21 -1120.26 571.98 0.11 5947716.24 645134.10 N 70.26456280 W 148.82654079 4423.00 41.00 154.60 3951.95 981 .58 -1174.29 598.68 1.80 5947662.73 645161 .82 N 70.26441517 W 148.82632503 4517.00 40.30 154.60 4023.27 1026.02 -1229.61 624.94 0.74 5947607.94 645189.15 N 70.26426405 W 148.82611274 4612.00 40.20 154.20 4095.78 1070.70 -1284.96 651.46 0.29 5947553.10 645216.72 N 70.26411281 W 148.82589838 4704.00 39.90 154.60 4166.20 1113.80 -1338.35 677.04 0.43 5947500.22 645243.32 N 70.26396696 W 148.82569164 4798.00 39.80 154.90 4238.37 1157.40 -1392.83 702.74 0.23 5947446.25 645270.05 N 70.26381812 W 148.82548397 4892.00 40.00 156.30 4310.48 1200.42 -1447.73 727.64 0.98 5947391.84 645296.01 N 70.26366811 W 148.82528268 Y -37 A ASP Final Survey.xls Page 2 of 5 4/18/2002-3:01 PM Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD vSec N/-S EJ-W DLS Northing Easting Latitude Longitude (ft) (") (") (ft) (ft) (ft) (ft) (0/100ft) (ftUS) (ftUS) 4985.00 42.80 156.00 4380.24 1243.88 -1503.98 752.51 3.02 5947336.09 645321.95 N 70.26351445 W 148.82508169 5079.00 42.10 156.00 4449.60 1288.84 -1561.94 778.32 0.74 5947278.64 645348.86 N 70.26335610 W 148.82487313 5172.00 41.80 156.00 4518.76 1332.89 -1618.73 803.60 0.32 5947222.34 645375.23 N 70.26320094 W 148.82466878 5268.00 43.10 156.00 4589.60 1378.80 -1677.92 829.96 1.35 5947163.67 645402.71 N 70.26303922 W 148.82445580 5362.00 42.70 156.00 4658.46 1424.14 -1736.38 855.98 0.43 5947105.73 645429.86 N 70.26287952 W 148.82424547 5455.00 43.50 156.00 4726.36 1469.17 -1794.43 881.83 0.86 5947048.19 645456.81 N 70.26272092 W 148.82403660 5550.00 44.10 156.30 4794.93 1515.64 -1854.57 908.41 0.67 5946988.58 645484.54 N 70.26255661 W 148.82382176 5645.00 44.00 156.00 4863.21 1562.32 -1914.98 935.12 0.24 5946928.70 645512.40 N 70.26239157 W 148.82360593 5739.00 43.80 156.30 4930.94 1608.38 -1974.59 961.48 0.31 5946869.61 645539.90 N 70.26222870 W 148.82339296 5834.00 44.40 157.00 4999.16 1654.69 -2035.29 987.68 0.81 5946809.43 645567.26 N 70.26206287 W 148.8231812. 5927.00 44.70 156.30 5065.44 1700.40 -2095.19 1013.54 0.62 5946750.04 645594.26 N 70.26189922 W 148.82297228~ 6020.00 44.20 156.70 5131.83 1746.14 -2154.91 1039.51 0.62 5946690.83 645621.37 N 70.26173605 W 148.82276243 6115.00 43.60 155.30 5200.28 1792.82 -2215.09 1 066.29 1.20 5946631.19 645649.30 N 70.26157164 W 148.82254598 6208.00 43.60 155.30 5267.63 1838.81 -2273.36 1093.09 0.00 5946573.45 645677.22 N 70.26141245 W 148.82232943 6303.00 45.30 154.90 5335.44 1886.68 -2333.69 1121.11 1.81 5946513.66 645706.38 N 70.26124759 W 148.82210308 6397.00 45.30 156.70 5401 .56 1934.19 -2394.63 1148.49 1.36 5946453.27 645734.93 N 70.26108110 W 148.82188179 6492.00 45.60 154.20 5468.21 1982.61 -2456.20 1176.62 1.90 5946392.25 645764.23 N 70.26091289 W 148.82165452 6586.00 44.90 154.60 5534.39 2031.21 -2516.40 1205.47 0.80 5946332.62 645794.23 N 70.26074841 W 148.82142145 6680.00 44.30 155.30 5601.32 2078.83 -2576.20 1233.41 0.83 5946273.38 645823.31 N 70.26058504 W 148.82119564 6775.00 44.70 154.20 5669.08 2127.02 -2636.42 1261.82 0.91 5946213.72 645852.87 N 70.26042051 W 148.82096614 6870.00 45.00 153.50 5736.43 2176.24 -2696.56 1291 .35 0.61 5946154.16 645883.54 N 70.26025620 W 148.82072756 6964.00 44.60 153.50 5803.13 2225.16 -2755.83 1320.90 0.43 5946095.47 645914.23 N 70.26009425 W 148.82048877 7059.00 42.80 152.50 5871.81 2274.02 -2814.32 1350.69 2.03 5946037.58 645945.13 N 70.25993447 W 148.82024811 7153.00 42.80 152.50 5940.78 2321.94 -2870.97 1380.18 0.00 5945981.51 645975.70 N 70.25977968 W 148.82000984 7249.00 42.90 152.10 6011.16 2371.08 -2928.77 1410.53 0.30 5945924.30 646007.15 N 70.25962175 W 148.8197646/ 7344.00 42.90 151.80 6080.76 2420.01 -2985.84 1440.94 0.21 5945867.83 646038.65 N 70.25946582 W 148.81951896~ 7438.00 42.70 151.10 6149.73 2468.70 -3041.94 1471.46 0.55 5945812.33 646070.24 N 70.25931254 W 148.81927236 7532.00 42.70 151 .40 6218.81 2517.44 -3097.83 1502.12 0.22 5945757.04 646101.97 N 70.25915984 W 148.81902464 7626.00 42.50 151.80 6288.00 2565.84 -3153.80 1532.38 0.36 5945701.67 646133.29 N 70.25900692 W 148.81878015 7720.00 42.40 151.10 6357.36 2614.20 -3209.53 1562.71 0.51 5945646.54 646164.68 N 70.25885465 W 148.81853519 7813.00 41.60 151.10 6426.47 2661.89 -3264.01 1592.78 0.86 5945592.65 646195.79 N 70.25870580 W 148.81829223 7908.00 41.10 152.50 6497.79 2709.48 -3319.32 1622.44 1.11 5945537.92 646226.50 N 70.25855469 W 148.81805262 8000.00 40.70 152.80 6567.33 2754.58 -3372.82 1650.11 0.48 5945484.97 646255.20 N 70.25840851 W 148.81782906 8092.00 40.40 152.10 6637.23 2799.49 -3425.85 1677.78 0.59 5945432.48 646283.87 N 70.25826362 W 148.81760560 8188.00 40.20 151 .80 6710.45 2846.47 -3480.65 1706.97 0.29 5945378.26 646314.11 N 70.25811390 W 148.81736973 Y-37A ASP Final Survey.xls Page 3 of 5 4/18/2002-3:01 PM Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD vSec N/-S EI-W DLS Northing Easting Latitude Longitude (ft) (") (") (ft) (ft) (ft) (ft) (°/1000) (ftUS) (ftUS) 8283.00 39.90 151.80 6783.17 2892.83 -3534.52 1735.86 0.32 5945324.96 646344.03 N 70.25796670 W 148.81713639 8378.00 39.70 151.80 6856.16 2938.94 -3588.11 1764.60 0.21 5945271.93 646373.78 N 70.25782027 W 148.81690426 8472.00 39.50 152.80 6928.59 2984.04 -3641 .16 1792.45 0.71 5945219.43 646402.65 N 70.25767533 W 148.81667927 8566.00 39.00 152.1 0 7001.38 3028.70 -3693.89 1819.96 0.71 5945167.24 646431.16 N 70.25753126 W 148.81645709 8661.00 38.70 152.50 7075.36 3073.55 -3746.65 1847.66 0.41 5945115.03 646459.87 N 70.25738710 W 148.81623333 8756.00 37.60 153.20 7150.07 3117.35 -3798.87 1874.44 1.24 5945063.34 646487.64 N 70.25724443 W 148.81601700 8850.00 38.50 153.90 7224.09 3160.11 -3850.74 1900.24 1.06 5945011.98 646514.43 N 70.25710270 W 148.81580859 8945.00 38.10 154.20 7298.65 3203.22 -3903.68 1926.01 0.46 5944959.54 646541.21 N 70.25695805 W 148.81560049 9040.00 37.80 153.50 7373.56 3246.13 -3956.12 1951.75 0.55 5944907.61 646567.96 N 70.25681476 W 148.81539254 9135.00 37.20 154.20 7448.93 3288.61 -4008.03 1977.24 0.77 5944856.20 646594.44 N 70.25667293 W 148.8151866 9229.00 36.70 153.90 7524.05 3329.98 -4058.84 2001.97 0.57 5944805.88 646620.13 N 70.25653411 W 148.81498697-" 9323.00 36.00 153.20 7599.76 3371.10 -4108.73 2026.78 0.87 5944756.49 646645.89 N 70.25639781 W 148.81478656 9418.00 34.90 153.90 7677.15 3411 .77 -4158.05 2051.33 1.23 5944707.64 646671 .38 N 70.25626303 W 148.81458832 9513.00 33.50 153.50 7755.72 3451.09 -4205.92 2074.98 1.49 5944660.24 646695.95 N 70.25613223 W 148.81439727 9606.00 32.20 154.90 7833.85 3487.94 -4251.33 2096.95 1.62 5944615.26 646718.78 N 70.25600816 W 148.81421989 9699.00 30.60 154.60 7913.22 3523.01 -4295.16 2117.61 1.73 5944571.85 646740.28 N 70.25588842 W 148.81405300 9794.00 29.10 156.00 7995.62 3556.93 -4338.11 2137.38 1.74 5944529.29 646760.87 N 70.25577107 W 148.81389335 9888.00 27.70 155.60 8078.30 3588.71 -4378.89 2155.70 1.50 5944488.87 646779.97 N 70.25565965 W 148.81374538 9982.00 26.40 153.90 8162.02 3619.64 -4417.55 2173.92 1.61 5944450.57 646798.93 N 70.25555400 W 148.81359824 10077.00 24.30 156.30 8247.87 3648.92 -4454.42 2191.07 2.46 5944414.04 646816.78 N 70.25545326 W 148.81345974 10169.00 21.90 157.70 8332.49 3674.06 -4487.63 2205.20 2.68 5944381.10 646831 .54 N 70.25536252 W 148.81334571 10265.00 20.50 158.10 8421.99 3697.84 -4519.80 2218.26 1.47 5944349.20 646845.22 N 70.25527464 W 148.81324022 10360.00 19.40 157.40 8511.29 3720.09 -4549.80 2230.53 1.18 5944319.44 646858.06 N 70.25519267 W 148.81314116 10454.00 18.30 158.80 8600.24 3740.82 -4577.97 2241.86 1.27 5944291.49 646869.93 N 70.25511569 W 148.81304962 10549.00 17.30 159.50 8690.70 3760.24 -4605.11 2252.21 1.08 5944264.56 646880.79 N 70.25504155 W 148.8129661? 10616.00 17.00 161.60 8754.72 3773.09 -4623.73 2258.79 1.03 5944246.07 646887.73 N 70.25499066 W 148.8129130ú_' 10667.95 21.70 163.85 8803.72 3783.75 -4640.17 2263.86 9.16 5944229.73 646893.11 N 70.25494574 W 148.81287206 10707.25 39.93 164.63 8837.33 3795.75 -4659.48 2269.27 46.40 5944210.54 646898.89 N 70.25489300 W 148.81282840 10764.60 63.95 165.21 8872.43 3822.19 -4702.77 2280.89 41.89 5944167.48 646911.35 N 70.25477472 W 148.81273457 10774.63 67.98 162.89 8876.51 3827.72 -4711.57 2283.41 45.39 5944158.72 646914.03 N 70.25475067 W 148.81271423 10794.85 75.78 156.86 8882.80 3840.39 -4729.59 2290.04 47.85 5944140.84 646921 .00 N 70.25470146 W 148.81266075 10821.84 80.48 150.06 8888.36 3859.90 -4753.19 2301.84 30.18 5944117.48 646933.25 N 70.25463697 W 148.81256544 10835.00 80.54 147.57 8890.53 3870.17 -4764.29 2308.56 18.67 5944106.50 646940.19 N 70.25460663 W 148.81251116 10873.86 92.06 146.39 8893.03 3901 .55 -4796.75 2329.66 29.80 5944074.46 646961.90 N 70.25451793 W 148.81234076 10909.30 89.80 145.31 8892.45 3930.67 -4826.07 2349.55 7.07 5944045.53 646982.35 N 70.25443781 W 148.81218012 Y-37A ASP Final Survey.xls Page 4 of 5 4/18/2002-3:01 PM Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD vSec NI-S E/-W DLS Northing Easting Latitude Longitude (ft) (") (") (ft) (ft) (ft) (ft) (o/100ft) (ftUS) (ftUS) 10960.00 92.74 138.77 8891.33 3974.12 -4866.01 2380.71 14.14 5944006.20 647014.27 N 70.25432867 W 148.81192847 11018.93 91.85 127.51 8888.96 4028.62 -4906.21 2423.60 19.15 5943966.83 647057.92 N 70.25421882 W 148.81158196 11096.96 90.68 116.79 8887.23 4105.08 -4947.66 2489.55 13.82 5943926.66 647124.65 N 70.25410552 W 148.81104918 11120.50 92.16 112.56 8886.65 4128.56 -4957.48 2510.93 19.03 5943917.25 647146.22 N 70.25407867 W 148.81087647 11164.00 89.55 109.50 8886.00 4172.05 -4973.08 2551.52 9.24 5943902.43 647187.09 N 70.25403600 W 148.81054855 11249.24 88.00 102.21 8887.83 4256.85 -4996.35 2633.44 8.74 5943880.74 647269.44 N 70.25397236 W 148.80988670 11305.50 91.06 98.15 8888.29 4312.06 -5006.29 2688.80 9.04 5943871.87 647324.97 N 70.25394515 W 148.80943947 11343.00 90.24 94.34 8887.86 4348.30 -5010.37 2726.07 10.39 5943868.51 647362.31 N 70.25393398 W 148.80913836 11389.00 91.06 90.76 8887.34 4391 .89 -5012.42 2772.01 7.98 5943867.34 647408.28 N 70.25392834 W 148.80876715 11443.00 89.28 86.65 8887.18 4441 .80 -5011.20 2825.98 8.29 5943869.60 647462.21 N 70.25393162 W 148.8083310 11486.00 89.52 83.18 8887.63 4480.37 -5007.39 2868.80 8.09 5943874.23 647504.95 N 70.25394199 W 148.80798505-' 11527.00 91.41 83.92 8887.30 4516.71 -5002.78 2909.54 4.95 5943879.62 647545.59 N 70.25395452 W 148.80765588 11550.92 89.93 87.46 8887.02 4538.31 -5000.98 2933.39 16.04 5943881.87 647569.39 N 70.25395941 W 148.80746320 11599.50 87.18 94.30 8888.24 4583.84 -5001.73 2981.91 15.17 5943882.06 647617.92 N 70.25395733 W 148.80707112 11648.50 87.84 99.55 8890.38 4631.29 -5007.63 3030.49 10.79 5943877.09 647666.60 N 70.25394115 W 148.80667863 11667.58 88.40 97.71 8891 .00 4649.90 -5010.49 3049.34 10.08 5943874.59 647685.50 N 70.25393332 W 148.80652630 11714.31 87.80 94.59 8892.55 4695.02 -5015.49 3095.77 6.80 5943870.48 647732.02 N 70.25391960 W 148.80615118 11806.11 91.08 100.99 8893.45 4784.28 -5027.93 3186.66 7.83 5943859.80 647823.12 N 70.25388552 W 148.80541684 11860.79 97.20 101.86 8889.50 4838.01 -5038.72 3240.09 11.30 5943850.03 647876.74 N 70.25385596 W 148.80498517 11895.50 95.32 107.70 8885.72 4872.29 -5047.52 3273.44 17.58 5943841.87 647910.25 N 70.25383188 W 148.80471578 11979.12 84.68 117.16 8885.72 4955.67 -5079.35 3350.53 17.02 5943811.54 647987.94 N 70.25374485 W 148.80409297 12010.50 84.88 123.33 8888.57 4986.51 -5095.08 3377.52 19.59 5943796.32 648015.21 N 70.25370183 W 148.80387502 12069.77 83.23 122.04 8894.71 5044.26 -5126.91 3427.13 3.53 5943765.45 648065.42 N 70.25361481 W 148.80347427 12137.05 87.18 115.06 8900.34 5110.69 -5158.92 3485.98 11.89 5943734.58 648124.87 N 70.25352729 W 148.80299890 12180.48 91.85 114.43 8900.71 5154.02 -5177.09 3525.41 10.85 5943717.17 648164.64 N 70.25347760 W 148.8026803f 12225.00 91.00 109.50 8899.60 5198.51 -5193.73 3566.67 11.23 5943701.33 648206.21 N 70.25343208 W 148.8023470~,~ Y-37A ASP Final Survey.xls Page 5 of 5 4/18/2002-3:01 PM ANADRILL SCHLUMBERGER Survey report Client...................: BP Exploration (Alaska) Inc. Field........ ............: Prudhoe Bay Well. . . . . . . . . . . . . . . . . . . . .: Y-37a Pb-1 API number...............: 50-029-22403-70 Engineer.................: M. Brown RIG: . . . . . . . . . . . . . . . . . . . . .: Nabors 3 S STATE: . . . . . . . . . . . . . . . . . . .: Alaska ----- Survey calculation methods------------- Method for positions.....: Minimum curvature Method for DLS...........: Mason & Taylor ----- Depth reference ----------------------- Permanent datum..........: Mean Sea Level Depth reference..........: GR Tie-In @ 10670 ft GL above permanent.. .....: -50000.00 ft KB above permanent. ......: -50000.00 ft DF above permanent.......: -50000.00 ft ----- Vertical section origin---------------- Latitude (+N/S-).........: 0.00 ft Departure (+E/W-)........: 0.00 ft ----- Platform reference point--------------- Latitude (+N/S-).........: -999.25 ft Departure (+E/W-)........: -999.25 ft Azimuth from rotary table to target: 111.12 degrees [(c)2002 Anadrill IDEAL ID6_1C_10J 19-Mar-2002 11:10:47 Spud date... . . . . . . . . . . . . . : Last survey date...... ...: Total accepted surveys...: MD of first survey.......: MD of last survey........: Page 1 of 2 15-Mar-02 19-Mar-02 9 10616.00 ft 10897.00 ft ~' ----- Geomagnetic data ---------------------- Magnetic model.. .........: BGGM version 2001 Magnetic date.. ..........: OO-Y- 0 Magnetic field strength..: -999.25 HCNT Magnetic dec (+E/W-).. ...: -999.25 degrees Magnetic dip..... ........: -999.25 degrees ----- MWD Reference Reference Reference Tolerance Tolerance Tolerance survey Reference G..............: H..............: Dip. . . . . . . . . . . . : of G...........: of H. . . . . . . . . . . : of Dip.........: Criteria --------- 1000.00 mGal 1000.00 HCNT 0.00 degrees (+/-) 2.50 mGal (+/-) 6.00 HCNT (+/-) 0.45 degrees ----- Corrections --------------------------- Magnetic dec (+E/W-).....: -57252.81 degrees Grid convergence (+E/W-).: 0.00 degrees Total az corr (+E/W-). ...: -57252.81 degrees (Total az corr = magnetic dec - grid conv) Sag applied (Y/N)........: No degree: 0.00 .~ , ANADRILL SCHLUMBERGER Survey Report 19-Mar-2002 11:10:47 Page 2 of 2 -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ Seq Measured Incl Azimuth Course TVD Vertical Displ Displ Total At DLS Srvy Tool # depth angle angle length depth section +N/S- +E/W- displ Azim (deg/ tool qual (ft) (deg) (deg) (ft) (ft) (ft) (ft) (ft) (ft) (deg) 100f) type type -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ -------- ------ ------- ------ -------- -------- ---------------- --------------- ------ 1 10616.00 17.00 161.60 0.00 8754.72 3773.09 -4623.73 2258.79 5145.97 153.96 0.00 TIP 2 10667.95 21.70 163.85 51.95 8803.72 3783.75 -4640.17 2263.86 5162.97 153.99 9.16 MWD 3 10707.25 39.93 164.63 39.30 8837.33 3795.75 -4659.47 2269.27 5182.69 154.03 46.40 MWD 4 10764.60 63.95 165.21 57.35 8872.43 3822.20 -4702.77 2280.90 5226.71 154.13 41.89 SP 5 10774.63 67.98 162.89 10.03 8876.51 3827.72 -4711.57 2283.42 5235.73 154.14 45.34 SP 6 10794.85 75.78 156.86 20.22 8882.81 3840.39 -4729.58 2290.04 5254.83 154.16 47.86 SP 7 10821.84 80.48 150.06 26.99 8888.36 3859.90 -4753.18 2301.85 5281.21 154.16 30.16 SP 8 10857.59 80.68 143.31 35.75 8894.23 3888.57 -4782.63 2321.20 5316.16 154.11 18.64 SP -..-' 9 10897.00 80.68 143.31 39.41 8900.61 3921.49 -4813.82 2344.44 5354.37 154.03 0.00 Proj. ~ ( ö Y-37APB1 Survey Report - Geodetic Schlumbepuep Report Date: 02-Apr-2002 Survey / DLS Computation Method: Minimum Curvature t Lubinski Client: BP Exploration Alaska Vertical Section Azimuth: 111.120° Field: Prudhoe Bay Unit - WOA (Drill Pads) Vertical Section Origin: N 0.000 ft, E 0.000 11 Structure / Slot: V-PAD / Y-37 TVD Reference Datum: MSL Well: Y-37 TVD Reference Elevation: 0.000 ft relative to MSL Borehole: Y-37APB1 Sea Bed / Ground Level Elevation: 50.000 ft relative to MSL UWUAPI#: 500292240370 Magnetic Declination: +26.295° Survey Name I Date: Y-37APB1 / March 26,2002 Total Field Strength: 57492.813 nT Tort / AHD / DDlI ERD ratio: 194.794° /5382.44 ftt 6.108 / 0.605 Magnetic Dip: 80.765° Grid Coordinate System: NAD27 Alaska State Planes, Zone 4, US Feet Declination Date: March 26, 2002 ~-.--, Location Lat/Long: N 70.26762332, W 148.83116474 Magnetic Declination Model: BGGM 2001 Location Grid NfE Y/X: N 5948825.220 ftUS, E 644540.760 ftUS North Reference: True North Grid Convergence Angle: +1.10021858° Total Corr Mag North -) True North: +26.295° Grid Scale Factor: 0.99992373 Local Coordinates Referenced To: Well Head Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD vSec NI-S E/-W DLS Northing Easting Latitude Longitude (ft) e) e) (ft) (ft) (ft) (ft) (0/100ft) (ftUS) (ftUS) 0.00 0.00 0.00 -79.10 0.00 0.00 0.00 5948825.22 644540.76 N 70.26762332 W 148.83116474 126.00 0.90 265.30 46.89 -0.89 -0.08 -0.99 0.71 5948825.12 644539.78 N 70.26762310 W 148.83117272 224.00 1.00 286.40 144.88 -2.44 0.10 -2.57 0.37 5948825.27 644538.19 N 70.26762358 W 148.83118555 316.00 1.40 282.20 236.86 -4.35 0.56 -4.44 0.44 5948825.70 644536.31 N 70.26762485 W 148.83120066 408.00 1.80 281 .80 328.83 -6.88 1.09 -6.96 0.43 5948826.18 644533.79 N 70.26762631 W 148.83122098 499.00 1.70 241.80 419.79 -9.17 0.75 -9.54 1.32 5948825.79 644531.20 N 70.26762536 W 148.83124191 592.00 1.90 210.10 512.74 -10.31 -1.24 -11.53 1.08 5948823.76 644529.25 N 70.26761994 W 148.83125799 685.00 2.70 171.10 605.67 -9.46 -4.74 -11.97 1.84 5948820.26 644528.89 N 70.26761038 W 148.83126150 778.00 4.20 154.90 698.50 -5.90 -9.98 -10.18 1.91 5948815.04 644530.77 N 70.26759604 W 148.831247m 872.00 4.20 133.1 0 792.26 -0.22 -15.45 -6.21 1.69 5948809.65 644534.85 N 70.26758110 W 148.83121495~ 966.00 4.30 135.20 886.00 6.18 -20.31 -1.21 0.20 5948804.90 644539.94 N 70.26756785 W 148.83117455 1060.00 4.00 128.20 979.75 12.54 -24.83 3.85 0.63 5948800.47 644545.08 N 70.26755548 W 148.83113365 1154.00 4.60 122.90 1073.49 19.36 -28.91 9.59 0.76 5948796.50 644550.90 N 70.26754434 W 148.83108723 1247.00 4.50 124.30 1166.19 26.56 -32.99 15.73 0.16 5948792.54 644557.12 N 70.26753319 W 148.83103754 1341.00 4.40 121.90 1259.91 33.70 -36.97 21.84 0.22 5948788.68 644563.30 N 70.26752231 W 148.83098816 1435.00 4.20 135.20 1353.65 40.38 -41.32 27.33 1.08 5948784.43 644568.87 N 70.26751043 W 148.83094380 1528.00 4.30 153.50 1446.40 46.07 -46.86 31.28 1.46 5948778.97 644572.93 N 70.26749530 W 148.83091182 1622.00 4.20 158.80 1540.14 50.99 -53.22 34.10 0.43 5948772.67 644575.87 N 70.26747792 W 148.83088904 Y-37APB1 ASP Final Survey.xls Page 1 of 4 4/18/2002-3:01 PM ~ Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD VSec NI-S EJ-W DLS Northing Easting Latitude Longitude (ft) (°) (") (ft) (ft) (ft) (ft) (0/100ft) (ftUS) (ftUS) 1717.00 4.70 162.00 1634.85 55.78 -60.17 36.56 0.59 5948765.77 644578.47 N 70.26745895 W 148.83086914 1807.00 4.70 160.20 1724.55 60.53 -67.14 38.95 0.16 5948758.84 644580.99 N 70.26743989 W 148.83084983 1899.00 5.10 158.40 1816.21 65.77 -74.49 41.73 0.47 5948751.55 644583.91 N 70.26741981 W 148.83082734 1992.00 6.00 163.50 1908.78 71.54 -82.99 44.63 1.10 5948743.10 644586.98 N 70.26739658 W 148.83080387 2086.00 7.50 161.60 2002.12 78.44 -93.53 47.97 1.61 5948732.64 644590.51 N 70.26736781 W 148.83077694 2177.00 9.10 163.00 2092.17 86.67 -106.05 51.94 1.77 5948720.20 644594.73 N 70.26733361 W 148.83074477 2271.00 12.00 158.80 2184.57 97.84 -122.27 57.65 3.19 5948704.09 644600.74 N 70.26728929 W 148.83069861 2364.00 15.10 155.30 2274.97 113.04 -142.29 66.21 3.45 5948684.24 644609.69 N 70.26723459 W 148.83062941 2458.00 17.80 154.60 2365.12 132.25 -166.40 77.49 2.88 5948660.35 644621 .43 N 70.26716873 W 148.83053820 2553.00 20.00 155.60 2454.99 154.38 -194.31 90.44 2.34 5948632.69 644634.90 N 70.26709246 W 148.8304335' 2648.00 22.90 154.20 2543.40 179.47 -225.76 105.19 3.10 5948601.54 644650.26 N 70.26700656 W 148.83031424"'--" 2740.00 26.00 152.80 2627.14 207.62 -259.82 122.21 3.43 5948567.82 644667.92 N 70.26691352 W 148.83017670 2834.00 28.90 155.30 2710.55 239.30 -298.79 141.12 3.32 5948529.22 644687.58 N 70.26680705 W 148.83002379 2928.00 31.40 154.20 2791.83 273.48 -341.48 161.27 2.72 5948486.93 644708.55 N 70.26669042 W 148.82986086 3022.00 33.80 154.60 2871.01 310.34 -387.15 183.15 2.56 5948441.69 644731.29 N 70.26656565 W 148.82968401 3115.00 35.40 152.1 0 2947.57 349.45 -434.33 206.85 2.30 5948394.98 644755.90 N 70.26643676 W 148.82949239 3208.00 37.30 152.10 3022.4 7 391.07 -483.04 232.64 2.04 5948346.77 644782.62 N 70.26630368 W 148.82928387 3304.00 40.40 152.50 3097.22 436.38 -536.35 260.63 3.24 5948294.01 644811.62 N 70.26615802 W 148.82905765 3404.00 41.10 150.00 3172.98 486.29 -593.57 292.03 1.78 5948237.41 644844.11 N 70.26600171 W 148.82880381 3487.00 40.70 150.40 3235.72 528.47 -640.73 319.03 0.58 5948190.79 644872.01 N 70.26587288 W 148.82858548 3580.00 40.40 151.10 3306.38 575.04 -693.48 348.58 0.59 5948138.62 644902.56 N 70.26572877 W 148.82834665 3675.00 40.10 151.10 3378.89 622.07 -747.21 378.24 0.32 5948085.47 644933.25 N 70.26558196 W 148.82810685 3768.00 39.60 150.00 3450.29 668.1 0 -799.1 0 407.54 0.93 5948034.15 644963.53 N 70.26544019 W 148.82787003 3862.00 39.00 153.20 3523.04 713.38 -851.46 435.86 2.25 5947982.36 644992.85 N 70.26529716 W 148.82764112 3956.00 40.70 153.90 3595.20 757.83 -905.39 462.68 1.87 5947928.96 645020.70 N 70.26514983 W 148.82742431 4049.00 40.30 153.20 3665.92 802.41 -959.46 489.58 0.65 5947875.41 645048.63 N 70.26500209 W 148.8272068t~ 4141.00 40.10 152.80 3736.19 846.62 -1012.37 516.54 0.35 5947823.03 645076.60 N 70.26485754 W 148.82698895 4236.00 39.90 152.80 3808.96 892.23 -1066.68 544.45 0.21 5947769.27 645105.55 N 70.26470916 W 148.82676333 4330.00 39.80 152.80 3881.13 937.21 -1120.26 571.98 0.11 5947716.24 645134.10 N 70.26456280 W 148.82654079 4423.00 41.00 154.60 3951.95 981.58 -1174.29 598.68 1.80 5947662.73 645161.82 N 70.26441517 W 148.82632503 4517.00 40.30 154.60 4023.27 1026.02 -1229.61 624.94 0.74 5947607.94 645189.15 N 70.26426405 W 148.82611274 4612.00 40.20 154.20 4095.78 1070.70 -1284.96 651.46 0.29 5947553.10 645216.72 N 70.26411281 W 148.82589838 4704.00 39.90 154.60 4166.20 1113.80 -1338.35 677.04 0.43 5947500.22 645243.32 N 70.26396696 W 148.82569164 4798.00 39.80 154.90 4238.37 1157.40 -1392.83 702.74 0.23 5947446.25 645270.05 N 70.26381812 W 148.82548397 4892.00 40.00 156.30 4310.48 1200.42 -1447.73 727.64 0.98 5947391.84 645296.01 N 70.26366811 W 148.82528268 Y-37APB1 ASP Final Survey.xls Page 2 of 4 4/18/2002-3:01 PM ,¡ , Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD VSec N/-S E/-W DLS Northing Easting Latitude Longitude (ft) (") (") (ft) (ft) (ft) (ft) (0/100ft) (ftUS) (ftUS) 4985.00 42.80 156.00 4380.24 1243.88 -1503.98 752.51 3.02 5947336.09 645321.95 N 70.26351445 W 148.82508169 5079.00 42.10 156.00 4449.60 1288.84 -1561.94 778.32 0.74 5947278.64 645348.86 N 70.26335610 W 148.82487313 5172.00 41.80 156.00 4518.76 1332.89 -1618.73 803.60 0.32 5947222.34 645375.23 N 70.26320094 W 148.82466878 5268.00 43.10 156.00 4589.60 1378.80 -1677.92 829.96 1.35 5947163.67 645402.71 N 70.26303922 W 148.82445580 5362.00 42.70 156.00 4658.46 1424.14 -1736.38 855.98 0.43 5947105.73 645429.86 N 70.26287952 W 148.82424547 5455.00 43.50 156.00 4726.36 1469.17 -1794.43 881.83 0.86 5947048.19 645456.81 N 70.26272092 W 148.82403660 5550.00 44.10 156.30 4794.93 1515.64 -1854.57 908.41 0.67 5946988.58 645484.54 N 70.26255661 W 148.82382176 5645.00 44.00 156.00 4863.21 1562.32 -1914.98 935.12 0.24 5946928.70 645512.40 N 70.26239157 W 148.82360593 5739.00 43.80 156.30 4930.94 1608.38 -1974.59 961.48 0.31 5946869.61 645539.90 N 70.26222870 W 148.82339296 5834.00 44.40 157.00 4999.16 1654.69 -2035.29 987.68 0.81 5946809.43 645567.26 N 70.26206287 W 148.8231812 5927.00 44.70 156.30 5065.44 1700.40 -2095.19 1013.54 0.62 5946750.04 645594.26 N 70.26189922 W 148.8229722~ 6020.00 44.20 156.70 5131.83 1746.14 -2154.91 1039.51 0.62 5946690.83 645621 .37 N 70.26173605 W 148.82276243 6115.00 43.60 155.30 5200.28 1792.82 -2215.09 1066.29 1.20 5946631.19 645649.30 N 70.26157164 W 148.82254598 6208.00 43.60 155.30 5267.63 1838.81 -2273.36 1093.09 0.00 5946573.45 645677.22 N 70.26141245 W 148.82232943 6303.00 45.30 154.90 5335.44 1886.68 -2333.69 1121.11 1.81 5946513.66 645706.38 N 70.26124759 W 148.82210308 6397.00 45.30 156.70 5401 .56 1934.19 -2394.63 1148.49 1.36 5946453.27 645734.93 N 70.26108110 W 148.82188179 6492.00 45.60 154.20 5468.21 1982.61 -2456.20 1176.62 1.90 5946392.25 645764.23 N 70.26091289 W 148.82165452 6586.00 44.90 154.60 5534.39 2031.21 -2516.40 1205.47 0.80 5946332.62 645794.23 N 70.26074841 W 148.82142145 6680.00 44.30 155.30 5601.32 2078.83 -2576.20 1233.41 0.83 5946273.38 645823.31 N 70.26058504 W 148.82119564 6775.00 44.70 154.20 5669.08 2127.02 -2636.42 1261.82 0.91 5946213.72 645852.87 N 70.26042051 W 148.82096614 6870.00 45.00 153.50 5736.43 2176.24 -2696.56 1291.35 0.61 5946154.16 645883.54 N 70.26025620 W 148.82072756 6964.00 44.60 153.50 5803.13 2225.16 -2755.83 1320.90 0.43 5946095.47 645914.23 N 70.26009425 W 148.82048877 7059.00 42.80 152.50 5871.81 2274.02 -2814.32 1350.69 2.03 5946037.58 645945.13 N 70.25993447 W 148.82024811 7153.00 42.80 152.50 5940.78 2321.94 -2870.97 1380.18 0.00 5945981.51 645975.70 N 70.25977968 W 148.82000984 7249.00 42.90 152.10 6011 .16 2371.08 -2928.77 1410.53 0.30 5945924.30 646007.15 N 70.25962175 W 148.8197646.ð 7344.00 42.90 151.80 6080.76 2420.01 -2985.84 1440.94 0.21 5945867.83 646038.65 N 70.25946582 W 148.8195189t~ 7438.00 42.70 151.10 6149.73 2468.70 -3041.94 1471.46 0.55 5945812.33 646070.24 N 70.25931254 W 148.81927236 7532.00 42.70 151.40 6218.81 2517.44 -3097.83 1502.12 0.22 5945757.04 646101.97 N 70.25915984 W 148.81902464 7626.00 42.50 151.80 6288.00 2565.84 -3153.80 1532.38 0.36 5945701.67 646133.29 N 70.25900692 W 148.81878015 7720.00 42.40 151.10 6357.36 2614.20 -3209.53 1562.71 0.51 5945646.54 646164.68 N 70.25885465 W 148.81853519 7813.00 41.60 151.10 6426.47 2661.89 -3264.01 1592.78 0.86 5945592.65 646195.79 N 70.25870580 W 148.81829223 7908.00 41.10 152.50 6497.79 2709.48 -3319.32 1622.44 1.11 5945537.92 646226.50 N 70.25855469 W 148.81805262 8000.00 40.70 152.80 6567.33 2754.58 -3372.82 1650.11 0.48 5945484.97 646255.20 N 70.25840851 W 148.81782906 8092.00 40.40 152.10 6637.23 2799.49 -3425.85 1677.78 0.59 5945432.48 646283.87 N 70.25826362 W 148.81760560 8188.00 40.20 151.80 6710.45 2846.47 -3480.65 1706.97 0.29 5945378.26 646314.11 N 70.25811390 W 148.81736973 Y-37APB1 ASP Final Survey.xls Page 3 of 4 4/18/2002-3:01 PM Grid Coordinates Geographic Coordinates Station ID MD Incl Azim TVD vSec NI-S EJ.W DLS Northing Easting Latitude Longitude (ft) (") (°) (ft) (ft) (ft) (ft) (0/100ft) (ftUS) (ftUS) 8283.00 39.90 151 .80 6783.17 2892.83 -3534.52 1735.86 0.32 5945324.96 646344.03 N 70.25796670 W 148.81713639 8378.00 39.70 151 .80 6856.16 2938.94 -3588.11 1764.60 0.21 5945271 .93 646373.78 N 70.25782027 W 148.81690426 8472.00 39.50 152.80 6928.59 2984.04 -3641 .16 1792.45 0.71 5945219.43 646402.65 N 70.25767533 W 148.81667927 8566.00 39.00 152.10 7001.38 3028.70 -3693.89 1819.96 0.71 5945167.24 646431.16 N 70.25753126 W 148.81645709 8661.00 38.70 152.50 7075.36 3073.55 -3746.65 1847.66 0.41 5945115.03 646459.87 N 70.25738710 W 148.81623333 8756.00 37.60 153.20 7150.07 3117.35 -3798.87 1874.44 1.24 5945063.34 646487.64 N 70.25724443 W 148.81601700 8850.00 38.50 153.90 7224.09 3160.11 -3850.74 1900.24 1.06 5945011.98 646514.43 N 70.25710270 W 148.81580859 8945.00 38.10 154.20 7298.65 3203.22 -3903.68 1926.01 0.46 5944959.54 646541 .21 N 70.25695805 W 148.81560049 9040.00 37.80 153.50 7373.56 3246.13 -3956.12 1951.75 0.55 5944907.61 646567.96 N 70.25681476 W 148.81539254 9135.00 37.20 154.20 7448.93 3288.61 -4008.03 1977.24 0.77 5944856.20 646594.44 N 70.25667293 W 148.8151866" 9229.00 36.70 153.90 7524.05 3329.98 -4058.84 2001.97 0.57 5944805.88 646620.13 N 70.25653411 W 148.8149869'r--.-I 9323.00 36.00 153.20 7599.76 3371.1 0 -4108.73 2026.78 0.87 5944756.49 646645.89 N 70.25639781 W 148.81478656 9418.00 34.90 153.90 7677.15 3411.77 -4158.05 2051.33 1.23 5944707.64 646671 .38 N 70.25626303 W 148.81458832 9513.00 33.50 153.50 7755.72 3451.09 -4205.92 2074.98 1.49 5944660.24 646695.95 N 70.25613223 W 148.81439727 9606.00 32.20 154.90 7833.85 3487.94 -4251.33 2096.95 1.62 5944615.26 646718.78 N 70.25600816 W 148.81421989 9699.00 30.60 154.60 7913.22 3523.01 -4295.16 2117.61 1.73 5944571.85 646740.28 N 70.25588842 W 148.81405300 9794.00 29.10 156.00 7995.62 3556.93 -4338.11 2137.38 1.74 5944529.29 646760.87 N 70.25577107 W 148.81389335 9888.00 27.70 155.60 8078.30 3588.71 -4378.89 2155.70 1.50 5944488.87 646779.97 N 70.25565965 W 148.81374538 9982.00 26.40 153.90 8162.02 3619.64 -4417.55 2173.92 1.61 5944450.57 646798.93 N 70.25555400 W 148.81359824 10077.00 24.30 156.30 8247.87 3648.92 -4454.42 2191.07 2.46 5944414.04 646816.78 N 70.25545326 W 148.81345974 10169.00 21.90 157.70 8332.49 3674.06 -4487.63 2205.20 2.68 5944381.10 646831.54 N 70.25536252 W 148.81334571 10265.00 20.50 158.1 0 8421.99 3697.84 -4519.80 2218.26 1.47 5944349.20 646845.22 N 70.25527464 W 148.81324022 10360.00 19.40 157.40 8511.29 3720.09 -4549.80 2230.53 1.18 5944319.44 646858.06 N 70.25519267 W 148.81314116 10454.00 18.30 158.80 8600.24 3740.82 -4577.97 2241.86 1.27 5944291.49 646869.93 N 70.25511569 W 148.81304962 10549.00 17.30 159.50 8690.70 3760.24 -4605.11 2252.21 1.08 5944264.56 646880.79 N 70.25504155 W 148.8129661? 10616.00 17.00 161.60 8754.72 3773.09 -4623.73 2258.79 1.03 5944246.07 646887.73 N 70.25499066 W 148.8129130l~ 10667.95 21.70 163.85 8803.72 3783.75 -4640.17 2263.86 9.16 5944229.73 646893.11 N 70.25494574 W 148.81287206 10707.25 39.93 164.63 8837.33 3795.75 -4659.48 2269.27 46.40 5944210.54 646898.89 N 70.25489300 W 148.81282840 10764.60 63.95 165.21 8872.43 3822.19 -4702.77 2280.89 41.89 5944167.48 646911 .35 N 70.25477472 W 148.81273457 10774.63 67.98 162.89 8876.51 3827.72 -4711.57 2283.41 45.39 5944158.72 646914.03 N 70.25475067 W 148.81271423 10794.85 75.78 156.86 8882.80 3840.39 -4729.59 2290.04 47.85 5944140.84 646921.00 N 70.25470146 W 148.81266075 10821.84 80.48 150.06 8888.36 3859.90 -4753.19 2301.84 30.18 5944117.48 646933.25 N 70.25463697 W 148.81256544 10857.59 80.68 143.31 8894.21 3888.57 -4782.64 2321.20 18.63 5944088.40 646953.17 N 70.25455649 W 148.81240908 10897.00 80.68 143.31 8900.60 3921.48 -4813.83 2344.43 0.00 5944057.67 646977.00 N 70.25447127 W 148.81222141 Y-37APB1 ASP Final Survey.xls Page 4 of 4 4/18/2002-3:01 PM . , ~ I n STATE OF ALASKA ALASKA Oil AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS ) ) 1. Operations performed: 0 Operation Shutdown 0 Stimulate 0 Pull Tubing 0 Alter Casing 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519-6612 0 Plugging 0 Perforate 0 Repair Well III Other 5. Type of well: a Development 0 Exploratory 0 Stratigraphic 0 Service Approved 403 Requirement; Suspend Well 6. Datum Elevation (DF or KB) KBE = 79.10' 7. Unit or Property Name Prudhoe Bay Unit 4. Location of well at surface 1425' SNL, 276' WEL, SEC. 33, T11 N, R13E, UM At top of productive interval 839' SNL, 1992' EWL, SEC. 03, T10N, R13E, UM At effective depth 419' SNL, 1822' EWL, SEC. 03, T10N, R13E, UM At total depth 1339' SNL, 3279' EWL, SEC. 03, T10N, R13E, UM 12. Present well condition summary Total depth: measured 8. Well Number x = 646909, Y = 5944177 Y-37A 9. Permit Number / Approval No. 202-046 302-385 10. API Number 50- 029-22403-01 11. Field and Pool Prudhoe Bay Field I Prudhoe Bay Pool x = 644541, Y = 5948825 x = 646729, Y = 5944594 x = 648206, Y = 5943702 true vertical Effective depth: measured true vertical 12225 feet 8979 feet 9651 feet 7951 feet Plugs (measured) Junk (measured) Coil Tubing Cementing Assembly parted and was cemented in the hole at about 9315' - 11450' Casing Structural Conductor Surface Intermediate Production Liner Length Size Cemented MD TVD 270 sx Arcticset (Approx.) 110' 110' 1281 sx CS III, 375 sx 'G' 3372' 3228' 265 sx Class 'G' 10659' 8954' 89 sx Class 'G' 10491' - 10651' 8715' - 8867' 80' 20" 3342' 10-3/4" 1 0632' 7-5/8" 160' 5-1/2" Perforation depth: measured 3-3/4" Uncased Hole (wI Cementing Assembly Fish): 10651' - 12225' true vertical 8867' - 8979' Tubing (size, grade, and measured depth) 4-1/2", 12.6#, 13CR to 10493'. Packers and SSSV (type and measured depth) 7-5/8" x 4-1/2" Baker SABL-3 packer at 10428' and 4-1/2" Otis Landing Nipple at 2098'. 13. Stimulation or cement squeeze summary Intervals treated (measured) Treatment description including volumes used and final pressure 14. Representative Daily Average Production or Injection Data Oil-Bbl Gas-Met Water-Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Attachments 0 Copies of Logs and Surveys run a Daily Report of Well Operations 17. I hereby certify that the ~eg~ing is true and correct to the ~est of my ~nOWI~ge Signed Terrie HUbble/t) ÀJ\..Ll . ~ Title Technical Assistant 16. Status of well classifications as: a Oil 0 Gas 0 Suspended Service .- ~ , ..,~ . Date O::,z.;;t4'03 Prepared By Name/Number: Terrie Hubble, 564-4628 Submit In Duplicate ~ Form 10-404 Rev. 06/15/88 ~,' ) TREE = 4-1/16" 5M OW WELLHEAD = 5M Frv'C 'A'ëïüÄrèYR';'''''' "''''".. "SÄ"F¿ER 'Kà:'äI:v '=""" ,.. 80:9ï 'sF:"'ä'ê.T ';''''''''''''''.''''''''''''''''''2'7~'22'i i<OÞ;"" .. 'i1'60; . , ..... ."..... ..."'" ". .. .. ~..........."..... ...... ... "~x~~.~~J.~,,~~,~!_~..~~"1.,~?~:. Datum tv[) = 10663' Datum 1V D = 8800' SS 10-314" CSG, 45.5#, NT-80, 10 = 9.950" 1--1 3380' ~ Minimum 10 = FISH @ 9315' 2-3/8" CH EM CUT COIL TBG I * TOP OF 2-3/8" COIL 1BG FISH, 4.45#, 1+90 1-1 9315' +/- 1 SAFETY NOTES: DURlNGY-37A SDTRKOPS, +/- 2135' OF 2-3/8" COIL TBG / BHA WAS LEFT IN WELL AFTER COIL PARTED. TOP OFFISH @ 9315' (CHEM CUT). BTM OFFISH @ 11450'. * SEECTD REPORTS FOR ADDITIONAL INFO. 7-5/8" X 5-1/2" BKR PKR'HGR W/ TlEBACK l-i 10491' I 7-518" CSG, 29.7#, NT-95HS, 10 = 6.875" H 10659' --A I 7-5/8"CSG SHOE H 10630'elm 1 1 TOP OF WHIPSTOCK H 10650' 1 1 RA PIPTAG H 10659' 1 PERFORA llON SlJv1MA. RY RET LOG: ANGLE AT TOP PERF: Note: Refer to Production œ for historical perf data SIZ E SPF INTER\! AL Opn/Sqz DATE 1 rBTD H 10976' 1 5-1/2" LNR 17#, 13-CR, ID = 4.892" H 11015' 0A.1E RBI BY CO M'v1 E3'J1S 10/31193 rvDO ORlGINALCOMPLETON 03131 A:> 2 CTDSDETRACK(ATfEIVP1) 04/02A:>2 Q-i/lP CORRECllONS DATE REV BY Y -37 A 8 L .... 0 I I :8: ~} \t ) SAFETY NOTES: 4-1/2" TBG & 5-1/2" LNR ARE 13-CHROME WELL ANGLE> 70° @ 10780' & > 90° @ 10865'. * COIL TBG ASH IN HOLE@ 9315'.SEE SAFETY BOX BB..OW FOR DETAILS. 2098' H4-1/2" OTlS SSSV NIP, 10 =3.813" 1 ~ ST 7 6 5 4 3 2 1 GAS LIFT MA.NORELS OBI TYPE VLV LATQ-i FORT OATE 37 KBMG rN BK 0 02/28/02 44 KBMG rN BK 0 02/28/02 43 KBMG rN BK 0 02/28/02 38 KBMG rN BK 0 02/28/02 24 KBMG rN BK 0 02/28/02 21 KBMG rN BK 0 02/28/02 19 KBMG rN BK 0 02/28/02 MD TVO 3222 3034 5768 4952 7685 6330 9042 7373 10056 8227 10201 8360 10306 8459 1 10373' H4-1/2" PARKER SWS NIP, D = 3,813" 1 ~ 1 10428' 1 1 I 1 1 H7-5/8" X4-1/2" BKRSABL-3 R<R, 10 =3.937' 1 H 4-1 /2" PARKER SWS NIP, D = 3.813" 1 H4-1/2" SWN NIP, MILL'OTO 3.80" D 1 1-14-1/2" TBG, 12,6#, 13-CR, .0152 bpf, 10 = 3.958" 1 1-14-1/2" WLEG, 10= 3,958" l-i ELMO TT LOGGED 11/10/93 1 10459' 10477' 10492' 10493' 10463' ~ 5-1/2" LNR MLLOUTWINOOW (Y -37A) 10651'- 10658' (OFFWHPSTOCK) 1 3-314" OPE3'J t-OLETO H COMrv'ENTS PRLDt-OEBAY LNIT WELL: Y-37A PffiMT t\b: 202-0460 AR No: 50-029-22403-01 SEC 33, T11 N, R13E 1425' SNL & 276' WEL BP Exploration (Alaska) ') STATE OF ALASKA ) ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVAL Ï/J') A- J ¿.f ¡-3 / 0 1.- ~ I~l'{~ /fI'I t..- ß / ;L- / Ii?¡ / ~ ¿.. iJ0 ¡-¿119/0"( 1. Type of Request: 0 Abandon 0 Alter Casing 0 Change Approved Program 2. Name of Operator BP Exploration (Alaska) Inc. II Suspend 0 Plugging 0 Time Extension 0 Perforate 0 Repair Well 0 Pull Tubing 0 Variance 0 Other 0 Operation Shutdown 0 Re-Enter Suspended Well 0 Stimulate 3. Address P.O. Box 196612, Anchorage, Alaska 99q19-6612 5. Type of well: a Development 0 Exploratory 0 Stratigraphic 0 Service 6. Datum Elevation (DF or KB) KBE = 79.10' 7. Unit or Property Name Prudhoe Bay Unit 4. Location of well at surface 1425' SNL, 276' WEL, SEC. 33, T11 N, R13E, UM At top of productive interval 8391 SNL, 1992' EWL, SEC. 03, T10N, R13E, UM At effective depth 419' SNL, 18221 EWL, SEC. 03, T10N, R13E, UM At total depth 1339' SNL, 32791 EWL, SEC. 03, T10N, R13E, UM 12. Present well condition summary Total depth: measured 8. Well Number Y-37 A 9. Permit Number 202-046 10. API Number 50- 029-22403-01 11. Field and Pool Prudhoe Bay Field / Prudhoe Bay Pool true vertical 12225 feet 8979 feet 9651 feet 7951 feet Plugs (measured) true vertical Effective depth: measured Junk (measured) Coil Tubing Cementing Assembly parted and was cemented in the hole at about 9315' - 114501 ".,,- Casing Structural Conductor Surface Intermediate Production Liner Length Size Cemented MD TVD 801 20" 33421 10-3/4" 1 0632' 7-5/8" 160' 5-1/2" 270 sx Arcticset (Approx.) 1281 sx CS III, 375 sx 'G' 110' 3372' 110' 32281 265 sx Class IG' 89 sx Class IG' 10659' 89541 10491' - 10651' 8715' - 8867' true vertical None RECEIVED DEC 1 3 2002 Perforation depth: measured None Tubing (size, grade, and measured depth) Alas1<a Oil & Gas Cons. Commission Anchorage Packers and SSSV (type and measured depth) 7-5/8" x 4-1/2" Baker SABL-3 packer at 10428' and 4-1/2" Otis Landing Nipple at 2098'. 4-1/2", 12.6#, 13CR to 10493'. 13. Attachments a Description Summary of Proposal 14. Estimated date for commencing operation 16. If proposal was verbally approved 0 Detailed Operations Program 15. Status of well classifications as: a Oil 0 Gas 0 Suspended 0 BOP Sketch Service Name of approver Date Approved Contact Engineer Name/Number: Alistair pherwood, 564-4378 17. I ~ereb. y certify that the forø7.. )t~ i~ ,~- and corr'f to the best of my knowledge Signed Alistair Sherwood i ,rJr~ ( .J'~/Ù~Ua\ . Title CT Drilling Engineer , , '.,.",','i' .,.,...". ,. ..:,'..'..'..'...'. ."'.",'i"::I,,:,,,:I~r;I,C~m~~'~i~i'~~,QijJY.:":c',: Conditions of Approval: Notify Commission so representative may witness Plug integrity - BOP Test - Location clearance - /) rj".,( MechanicallntegriW Test - Subsequent form required 10- l/ 0 4- "¡ l'~# vv ft'ÆL t.~< ii O@)Ll.) I Si.<.Vta..~ r/~~.~ ~tútV1^..e~t ¡' S Wtx...l\ie..d, Approved by order of the Commission ORIGlf\lAI i~NfQBV 1 ~ 1'. Commissioner Form 10-403 Rev. 06/15/88 M ~: éi'''' ',:, :::i. i; . \. ,> ~1IH~ 5 M ~ l DEC ? 1 Prepared By NameINumber: Terrie Hubble, 564-4628 Date j'L- \'G ~1,. . ?~ -_jl:~- Date 1!X1r¡1v '.~~uþmit In ;l,:'i~licate ) ) p To: Winton Aubert Sr. Petroleum Engineer Alaska Oil & Gas Conservation Commission From: Alistair Sherwood CTO Engineer Oate: December 12th 2002 Re: CTO Sidetrack of well V -37 Drilling Permit No. 202-046 Back in March 02, Nabors 3S / SLB Coil Tubing Unit 4 experienced severe difficulties drilling V -37a sidetrack. The Z4 LOC reserves the sidetrack targeted lay to the East of a NW-SE, -25ft upthrown fault. After 1400ft of drilling and with 1000' to go, the fault was intersected and circulation lost. Based on severity it was decided to risk drilling ahead using seawater. This we did for 150' until shale sloughing, weight transfer and orientation problems became unbearable. After pumping 120bbls of cement and 40bbls of LCM with a nozzle BHA, fluid loss was cured. However during the operation to lay in a 7bbl cement kick off plug to sidetrack the well, the 2% coil parted at surface. Before moving off the well, the coil fish was drifted, chemically cut -1300' above the window and partially recovered back to surface. Since shutting down the Nabors 3S / SLB Unit 4 CTO operation on March 31, service coil has visited the well, with the desire the remove more of the coil fish, at least down to the window. On 1 %" coil, a 1.69" motor & 1.85" diamond speed mill, struggled to remov~-300' of cement from inside the coil fish. Given the cemented in nature of the fish & it's location, future recovery, as far as being able to produce the well again is a significant challenge. There are therefore no plans to return to Y-37 with a CTO rig. Note: the coil parted at a flat spot. A highly abrasive 13Cr 4Y2" completion and a lack of lubricating fluid, (due to losses) caused the coil wall to wear away quickly to the point of tensile failure. / ÆÛV~ð¡ Alistair Sherwood CTO Drilling Engineer 1l,1{1./~'1- - /[0 d 2.. CC: Well File Terrie Hubble TREE = 4-1/16" 5M CIW ~WELLHEAD = 5M FMC ÄëTuÄTbR~'. ...ŠÄKER KB. ELEV = 80.9' 'BF:ELËV'~ " ,.", '2i:22ï ..............................", . ., "".... .... KOP = 2100' ~x'~~~ì~ ~..~( (~'118~~Î' Datum MD = 10663' DatümlVD;" ääöo'ss ) Y-37A 8 10-3/4" CSG, 45.5#, NT-80, ID = 9.950" 1-1 3380' ~ Minimum 10 = FISH @ 9315' 2-3/8" CHEM CUT COIL TBG L .., I * TOP 0, F 2-3/8" COIL TBG FISH, 4.45#, H-90 1-1 9315' +/- ~ ~-J I GUIDE TOOL SET ON COIL 4-1/2 GFN (WLM) 1--1 9327' r "" SAFETY NOTES: DURING Y-37 A SDTRK OPS, +1- 2135' OF2-3/8" COIL TBGI BHA WAS LEFT IN WELL AFTER COIL PARTED. TOP OF ASH @ 9315' (CHEM CUT). BTM OF ASH @ 11450'. * SEE CTD REPORTS FOR ADDITIONAL INFO. I I :8: 7-5/8" X 5-1/2" BKR PKR/HGR W/ TIEBACK 1-1 10491' I ~, \r 7-5/8" CSG, 29.7#, NT-95HS, ID = 6.875" 1-1 10659' ~ I 7-5/8" CSG SHOE 1-I10630'elm 1 hvNOTES: 4-1/2" TBG& 5-1/2" LNRARE 13-CHROME. WELL ANGLE> 70° @ 10780' & > 90° @ 10865'. * COIL TBG ASH IN HOLE @ 9315'. SEE SAÆTY BOX BELOW FOR DETAILS. 2098' H4-1/2" OTIS SSSV NIP, ID = 3.813" 1 ~ ST 7 6 5 4 3 2 1 GAS LIFT MANDRELS DEV ìYÆ VLV LATCH PORT DATE 37 KBMG DV BK 0 02/28/02 44 KBMG DV BK 0 02/28/02 43 KBMG DV BK 0 02/28/02 38 KBMG DV BK 0 02/28/02 24 KBMG DV BK 0 02/28/02 21 KBMG DV BK 0 02/28/02 19 KBMG DV BK 0 02/28/02 MD rvD 3222 3034 5768 4952 7685 6330 9042 7373 10056 8227 10201 8360 10306 8459 Q/POl9 t I 10373' H4-1/2" PARKER SWS NIP, ID = 3.813" 1 ~ I 10428' I I I I I 1-17-5/8" X 4-1/2" BKRSABL-3 PKR, ID= 3.937" 1 H4-1/2" PARKER SWS NIP, ID = 3.813" 1 H4-1/2" SWN NIP, MILL'DTO 3.80" ID 1 1-14-1/2" TBG, 12.6#, 13-CR, .0152 bpf, ID = 3.958" I 1-14-1/2" WLEG, ID = 3.958" 1 1-1 ELMD TT LOGGED 11/10/93 1 10459' 10477' 10492' 10493' 10463' ~ .¡l6k --..' ~~ 5-1/2" LNRMILLOUTWINooW (Y-37A) 10651' - 10658' (OFF WHIPSTOCK) I TOP OF WHIPSTOCK 1-1 10650' 1 I RA PIP TAG 1-1 10659' 1 ÆRFORA TION SUMMARY REF LOG: ANGLE AT TOP ÆRF: Note: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz DA TE 5-1/2" LNR, 17#, 13-CR, ID = 4.892" 1-1 11015' I PBTD 1-1 10976' 1 DATE 10/31/93 03/31/02 04/02/02 06/24/02 REV BY MOO COMMENTS ORIGINAL COMPLETION CTD SIDETRACK (ATTEMPT) CORRECTIONS SET GUIDE TOOL DA TE REV BY CH/TP JM'KAK I 3-3/4" OÆN HOLE TD 1-1 COMMENTS PRUDHOE BAY UNIT WB.L: Y -37 A ÆRMIT No: 202-0460 API No: 50-029-22403-01 SEC 33, T11 N, R13E 1425' SNL & 276' We. BP Exploration (Alaska) ScblulDbepgeP Alaska Data & Consulting Services 3940 Arctic Blvd, Suite 300 Anchorage, AK 99503-5711 A TIN: Sherñe ;~ Well Job # Log Description D.S. 7-28A 1 '17.. J d'=j 22170 RST Y -37 A ~ ~..t)q '" 22167 SP ARC DATA Y-37A 22167 MD VISION RESISTIVITY Y-37A 22167 TVD VISION RESISTIVITY Y-37A PB1 22157 SP DATA Y-37A PB~ 22157 MD SLlMPULSE-GR Y-37A PBI V 22157 TVD SLlMPULSE-GR ~. PLEASE ACKNOWLEDGE RECEIPT BY SIGNING AND RETURNING ONE COPY EACH TO: BP Exploration (Alaska) Inc. Petrotectnical Data Center LR2- 1 900 E. Benson Blvd. Anchorage, Alaska 99508 RECEIVED Date Delivered: t.PR 1 9 2002 Alaska Oil & Gas Cons. Commission Anchorage Date 03/28/02 03/25/02 03/25/02 03/25/02 03/18/02 03/18/02 03/18/02 Blueline 0£1/16/02 NO. 1992 Company: State of Alaska Alaska Oil & Gas Cons Comm Aftn: Lisa Weepie 333 West 7th Ave, Suite 100 Anchorage, AK 99501 Field: Prudhoe Bay Sepia Color Prints CD Schlumberger GeoQuest 39£10 Arctic Blvd. Suite 300 Anchorage, AK 99503-5711 ATTN: Sherrie ReceiVed~~¡ Å Qo.f'~ Customer Well No Installation/Rig Data Su rveys Received By: ) MWD/LWD Log Product Delivery BP Exploration (Alaska) Inc. Dispatched To: Y-37a PB1 Date Dispatched: Nabors 3S / SLB CTU # 4 Dispatched By: ) Lisa Weepie 5-Apr-02 Nate Rose No Of Prints No of Floppies ¿).Od-OL/0 2 ,-- - ~, ( ,', :" /, . ¡'---~~ 6-~v-_-' L WD Log Delivery V 1 .1 Dec '97 Please sign and return to: Anadrill LWD Division 3940 Arctic Blvd, Suite 300 Anchorage, Alaska 99503 nrose1 @slb.com Fax: 907-561~~¡r.1..1\/1..~. ~I APR 11 2002 AlalkaÐil IGI& ConI.er....LrfJn Ancimage .) ) MWD/LWD Log Product Delivery Customer BP Exploration (Alaska) Inc. Dispatched To: Lisa Weepie Well No Y-37a PB1 Date Dispatched: 1-Apr-02 Installation/Rig Nabors 3S / SLB CTU # 4 Dispatched By: Nate Rose Data No Of Prints No of Floppies Su rveys 2 aOa-04l,o RECEIVED APR 3 ?nrr) NllklOI& 3I&Ccm. GoRIiIIion -.... Received BY~ ~ Please sign and return to: Anadrill LWD Division 3940 Arctic Blvd, Suite 300 Anchorage, Alaska 99503 nrose1 @slb.com Fax: 907-561-8417 LWD Log Delivery V1.1, Dec '97 ') ') ~~!Æ~E : F !Æ~!Æ~~~!Æ AlASKA. OIL AND GAS CONSERVATION COMMISSION TONY KNOWLES, GOVERNOR 333 W. "pH AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Alistair Sherwood CT Drilling Engineer BP Exploration (Alaska) Inc. P.O. Box 196612 Anchorage, AK. 99519-6612 Re: Prudhoe Bay Unit Y-37A BP Exploration (Alaska) Inc. Permit No: 202-046 Sur Loc: 1425' SNL, 276'WEL, SEC. 33, TIIN, R13E, UM Btmhole Loc. 1490' SNL, 4092' EWL, SEC 03, TION, R13E, UM Dear Mr. Sherwood: Enclosed is the approved application for permit to redrill the above referenced well. The permit to redrlll does not exempt you from obtaining additional permits required by . law from other governmental agencies, and does not authorize conducting drilling operations until all other required pennitting detenninations are made. Annular disposal has not been requested as part of the Pennit to Drill application for Prudhoe Bay Unit Y-37A. Blowout prevention equipment (BOPE) must be tested in accordance with 20AAC 25 035. Sufficient notice (approximately 24 hours) must be given to allow a representative of the Commission to witness a test of BOPE installed prior to drilling new hole. Notice may be given by contacting the Commission petroleum field inspector on the North Slope pager at 659-3607. Sincerely, Úr ~U.~ c~echsli Ta~r Chair BY ORDER OF THE COMMISSION DATED this 8th day of March, 2002 jjclEnclosures cc: Department of Fish & Game, Habitat Section wlo encl. Department of Environmental Conservation wlo encl. , STATE OF ALASKA ALASKA OIl- JND GAS CONSERVATION COMMIS PERMIT TO DRILL 20 AAC 25.005 \¡J't:¡ A 3/ q¡ f)'2- k 3{S --()?- )N 1 a. Type of work 0 Drill 181 Redrill 0 Re-Entry 0 Deepen 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P.O. Box 196612, Anchorage, Alaska 99519.6612 4. Location of well at surface 1425' SNL, 276' WEL, SEC. 33, T11 N, R13E, UM At top of productive interval 802' SNL, 1982' EWL, SEC. 03, T10N, R13E, UM At total depth 1490' SNL, 4092' EWL, SEC. 03, T10N, R13E, UM 12. Distance to nearest property line 13. Distance to nearest well ADL 047472,1186' MD No Close Approach 16. To be completed for deviated wells Kick Off Depth 10650' Maximum Hole Angle 18. Casin~ Program Specifications Size Hole CasinQ Weiaht Grade: Coupling 3-3/4" 3-3I16"x 2-7/8" 6.2#, 6.5# L.80 ST-L 1 b. Type of well 0 Exploratory 0 Stratigraphic Test 181 Development Oil 0 Service 0 Development Gas 181 Single Zone 0 Multiple Zone 5. Datum Elevation (DF or KB) 10. Field and Pool KBE = 79.10' Prudhoe Bay Field / Prudhoe 6. Property Designation Bay Pool ADL 047471 7. Unit or Property Name Prudhoe Bay Unit 8. Well Number V -37 A 9. Approximate spud date 03/18/02 /' Amount $200,000.00 14. Number of acres in property 15. Proposed depth (MD and TVD) 2560 13088' MD / 8950' TVD 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} 97.900 Maximum surface 2245 psig, At total depth (TV D) 8800' / 3300 psig Setting Depth TQP Bottom Quantitv of Cement Lenath MD TVD MD TVD (include staae data) 2688' 10400' 8541' 13088' 8950' 80 cu ft Class 'G' ./ 11. Type Bond (See 20 AAC 25.025) Number 2S100302630-277 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Structural Conductor Surface Intermediate Production Liner 11015 feet 9219 feet 10976 feet 9181 feet Length Plugs (measured) Junk (measured) Size Cemented MD TVD 80' 20" 3342' 10-3/4" 1 0632' 7-5/8" 524' 5-1/2" 270 sx Arcticset (Approx.) 1281 sx CS III, 375 sx 'G' 110' 3372' 110' 3228' 265 sx Class 'G' 89 sx Class 'G' 10659' 8954' 10491' - 11015' 8715' - 9219' RECEiVED true vertical Open: 10644' - 10658', 10736' - 10770' Open: 8861' - 8874', 8949' - 8982' FEB 2 0 2002 Perforation depth: measured 20. Attachments Alaska Oil & G::1S Cons. Commission II Filing Fee 0 Property Plat II BOP Sketch 0 Diverter Sketch 181 Drilli~IØ~ 181 Drilling Fluid Program 0 Time vs Depth Plot 0 Refraction Analysis 0 Seabed Report 0 20 AAC 25.050 Requirements Contact Engineer NameINumber: Alistair Sherwood, 564-4378 Prepared By NameINumber: Sandra Stewman, 564-4750 21. I hereby certify that the fa. rer,tJ is t'/J a~ to the best of my knOWled. ge. I ~ Signed Alistair Sherwood 1f1411 ß.Rý) Hie CT Dnlllng Engineer Date 02..20 { ~ L Cor;nmission. Use" Only .. ..' Permit Number", J/ API Number Approval Date See cover letter 2D 2- -0 7 (0 50- 029-22403-01 -2J~/[) ~ for other reQuirements Conditions of Approval: Samples Required D Yes SNo Mud Log Required D.Ves ¡ßJ' No Hydrogen Sulfide Measures [lVes D No Directional Survey Required iifVes D NO~')~ '5' Required Working Pressure for BÒPE D 2K D 3K D 4K D 5K D 10K D 15K ~.5K psi I y- Other: Approved By Form 10-401 Rev. 12-01-85 . . . by order of Ongmal Signed BV Commissioner the commission Gammy Uechsli 0 RIG I N A L - , Date j, ~{~3 ~ubmit In Triplicate ,) BPX Y -37 Sidetrack ') Summary of Operations: I A sidetrack of production well Y -37 will be drilled using coil tubing. Specific prep work, (Phase 1) and drilling, (Phase 2) operations are detailed below. Phase 1: Screen & Prep Well: Screen - Fluid pack lA, install dummy GlV's and MIT-IA. PPPOT-tbg hanger seals. MIT-OA and pressure test tree valves. Prep - Planned for March 11,2002 ¡ . Set a thru tubing 4V2" x SV2" mechanical whipstock at 10,6S0' MD (8,78J TVDss). . P&A existing perforations above & below the whipstock with a 10 bbls squeeze of 1S.8ppg cement. Phase 2: Drill and Complete CTD sidetrack: Planned for March 18, 2002 2%" coil will be used to drill a -2240ft of 3%" OH sidetrack from a window cut in the SV2" liner - as per the attached plan. The sidetrack will be completed, Bonsai style with a 2,690ft, solid 3-3/16" & solid/perforated 2}8" liner. The 2Ys" slotted liner will be laid across the production interval; the remaining solid, across unproductive interval up into the parent wellbore. Cement will be placed behind the solid pipe using a float, baffle & perforated pup joint. Drilling out of this float equipment & any cement stringers will be the final operation. Mud Program: . Phase 1: Seawater . Phase 2: Seawater and Flo-Pro (8.6 - 8.7 ppg) Disposal: . No annular injection on this well. . 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: (l1S-0' ~ . 3-3/16", l-80, liner will be run from 10,400'md (TOl, 8,S41' TVDss) to approximately ~'md, (100' outside of the window). From 10,94S'md, 2Ys" solid liner will be run to the top of the production interval beyond which 2~" slotted ~er will be run to TD. Assuming the diverter equipment is \þlaced at 12,300' than approximately 14bbls, (annular volume +400/0 exceJs in the open hole) of 1S.8ppg class G cement will be pumped behind pipe bringing the TOC to 10,SOO' in the SV2" liner. Well Control: . BOP diagram is attached. ./ . Pipe rams, blind rams and the CT pack off will be pressure tested to 300 psi and to 3,SOO psi. . The annular preventer will be tested to 400 psi and 2,200 psi. Directional . See attached directional plan. . Magnetic and inclination surveys will be taken every 30 ft. No gyro will be run. Logging . Real time MWD, Gamma Ray & Resistivity logs will be run while drilling the open hole section. Hazards . H2S is a hazard on Y pad. last tested on the 12/13/01, Y -37 had a 70ppm concentration. . The wells directional trajectory crosses a fault just past mid way. There is a significant risk of loosing lost circulation. Reservoir Pressure Reservoir pressure is estimatrd to be 3,300 psi at 8,800ss. Maximum surface pressure with gas (0.12 psi/ft) to surface is 2,24S psi. TREE = 4-1/16"5MCIW WELLHEAD = 5M FMC ÄërUATOR'; .."SÃKER . .. .. . I KB. ELEV = 80.9' BF:aBï' ;''''2j~22i Kop"; . ..., '''''' ....'21 ÖÒi MaxA'ngië ;"' ,. , 42@ 337Sì ÖätumMÖ ~ .., 1 0663;' . . . . .. . . . . Datum rvD = 8800' SS ') 10-3/4" CSG, 45.5#, NT-80, ID = 9.953" 1-1 3380' ~ Minimum ID = 3.725" @ 10477' 4-1/2" PARKER SWN NIPPLE I TOP OF 5-1/2" LNR 1-1 10491' 1 I 4-1/2" TBG, 12.6#, 13CR, 0.0152 bpf, ID = 3.958" 1-1 10493' 1 7-5/8" CSG, 29.7#, NT-95HS, ID = 6.875" 1-1 10659' ~ ÆRFORA TION SUMMARY REF LOG: BHCA ON 10/27/93 ANGLEATTOPÆRF: 17 @ 10644' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz DATE 3-3/8" 6 10644 - 10658' 0 10/27/93 3-3/8" 6 10736 - 10770' 0 10/27/93 Y-37 <8 L I I 8: }! \ I I PBID l-i 10976' 1 ~ 5-1/2" LNR, 17#, 13CR, 0.0232 bpf, ID = 4.892" 1-1 11015' ~ DA TE REV BY COMMENTS 10/31/93 MOO ORIGINAL COMPLETION 03/01/01 SIS-QAA CONVERTED TO CANVAS 03/08/01 SIS-LG FINAL 06/25/01 RNITP CORRECTIONS DA TE REV BY SAFETY ')=S 2098' ~14-1/2" OTIS SSSV NIP, ID = 3.813" 1 ~ ST 7 6 5 4 3 2 1 GAS LIFT MANDRELS MD TVD DEV TYPE VLV LATCH 3222 3034 37 CAM 1" BK 5768 4952 44 CAM 1" BK 7685 6330 43 CAM 1" BK 9042 7373 38 CAM 1" BK 10056 8227 24 CAM 1" BK 10201 8360 21 CAM 1" BK 10306 8459 19 CAM 1" BK SIZE DATE I 10373' ~14-1/2"PARKERSWSNIP,ID=3.813" 1 ~ I 10428' 1-17-5/8" x 4-1/2" BKR SABL-3 PKR, ID = 3.93" 1 I 10459' ~14-1/2" PARKER SWS NIP, ID = 3.813" 1 I 10477' ~14-1/2"PARKERSWNNIP,ID=3.725" 1 I 10493' 1-14-1/2" WLEG, ID = 3.958" 1 I 10463' 1-1 ELMD TT LOGGED 11/10/931 ~ I COMMENTS PRUDHOE BA Y UNIT WELL: Y -37 ÆRMfT No: 93-1360 API No: 50-029-22403-00 SEC 33, T11 N, R13E BP Exploration (Alaska) TREE = 4-1/16" 5M CIW WELLHEAD = 5M FMC ACTUA TOR ~ BAKER .... .. . .... .... .. KB. ELEV = 80.9' "sF:ELBï .~'" . "",,,. . 27"?2.2ï 'KOP;" ....... ...'21öbï 'Max Angle;" '42@f337a; Datum MD ,; .1 0663;' Datum lVD = 8800' SS ') 10-3/4" CSG, 45.5#, NT-80, ID = 9.953" 1-1 3380' ~ Minimum ID = 3.725" @ 10477' 4-1/2" PARKER SWN NIPPLE I TOP OF LNR 1-1 10400' 1 I TOP OF 5-1/2" LNRI-1 10491' 1 I 4-1/2" TBG, 12.6#, 13CR, 0.0152 bpf, ID = 3.958" 1-1 10493' 1 Y-37a (I) L I I :8: ~ 1 f ~I 7-5/8" CSG, 29.7#, NT-95HS, ID = 6.875" 1-1 10659' ~ Note: 1.5/8" Csg shoe @ 10,630' Loggers Depth Whipstock set at 10,650' Perfs sqz'd past whipstock PERFORA TION SUMMARY REF LOG: BHCA ON 10/27/93 ANGLE AT TOP PERF: 17 @ 10644' Note: Refer to Production DB for historical perf data SIZE SPF INTERV AL Opn/Sqz DA TE 3-3/8" 6 10644 - 10658' 0 10/27/93 3-318" 6 10736 - 10770' 0 10/27/93 I PBTD 1-1 10976' 5-1/2" LNR, 17#, 13CR, 0.0232 bpf, ID = 4.892" 1-1 11015' xxx X X X- XXX XXX XXX XXX XXX XXX XXX XXX 1 X X X ~ DA TE REV BY DA TE REV BY COMMENTS 10/31/93 MOO ORIGINAL COMPLEIlON 03/01101 SIS-QAA CONVERTED TO CANVAS 03/08/01 SIS-LG FINAL 06/25/01 RN/TP CORRECTIONS 01/29/02 AS CTD Sidetrack Proposal COMMENTS SAFElY )eS 2098' 1-14-1/2" OTIS SSSV NIP, ID = 3.813" 1 ~ ST 7 6 5 4 3 2 1 GAS LIFT MANDRELS MD lVD DEV TYPE VLV LATCH 3222 3034 37 CAM 1" BK 5768 4952 44 CAM 1" BK 7685 6330 43 CAM 1" BK 9042 7373 38 CAM 1" BK 10056 8227 24 CAM 1" BK 10201 8360 21 CAM 1" BK 10306 8459 19 CAM 1" BK SIZE DATE I 10373' 1-14-1/2" PARKERSWS NIP, ID= 3.813" 1 I 10428' 1-17-5/8"X4-1/2"BKRSABL-3PKR,ID=3.93" 1 I 10459' 1-14-1/2"PARKERSWSNIP,ID=3.813" 1 I 10477' 1-14-1/2" PARKER SWN NIP, ID = 3.725" 1 I 10493' 1-14-1/2" WLEG, ID = 3.958" 1 I 10463' 1-1 ELMD TT LOGGED 11/10/931 ~ I 10,500' 1---1 Proposed TOC 1 ,/" I 0"150' vJt:tA I 1j)945' 1---133/16" x 2 7/8" XO 1 . .. ----- ....- - ...-:::.""-~ -:::::-- ~ -;:::.---- ~ }.. I \ ~.()() 13088'L--f"TMõ1 ýl..l I ~ Bonsai Completion Solid: 3 3/16" 6.2# TC-II L-80 ID=2.8" Solid & Slotted: 27/8" 6.5# ST-L L-80 10=2.441" PRUDHOE BAY UNIT WELL: Y -37 PERMIT No: 93-1360 API No: 50-029-22403-00 SEC 33, T11 N, R13E BP Exploration (Alaska) ö 7600 - - +-' - Q)-.J .æw o~ 0 Q) ~ > II .8 c: CO ~~ .r::.~ "5.0 Q):::J Qw eõ::E CJ .. :e'ã> Q)a::: > > Q) Q) 2w I- 8000- 8400 - 8800 - 9200 - i 3600 VERTICAL SECTION VIEW Client: Well: Field: BP Exploration Alaska Y-37A (P9) Prudhoe Bay Unit - WOA Schlumberuer Structure: Y-PAD Section At: 111.12 deg Date: February 18, 2002 ~. TJj..Jn Survey10616 MD 8755WD, 11,.00" 161.60" SZ 3773 departure: , . - ~¡ ~~::~:1~.1~:;~~r:D : Cry 39.61100 10670 MD BSbs TVD ~..!. 17.SS. 162.81.sz 3783departuT,.."",.¡,: e , ,Crv 10/'100 : ! 11478MD ..i ..,..i. - ./ 90.00. 81.CJ6. az \ I ! -~_. ~~.; ~ .".,.1 0 Y,.i ~ I ¡ /! Y -37 I ¡ Cry 1O/'1oci : - -. - . - CN ~W1oo 11897 MD j 8892 TVD 90" Point ! Cry 10/'100 1100:z MD 8898 TVD 9O.3IF 12p.51.-az 10855 MD 8908WD I 10872 MD 8908WD 94.~. 127.98" az 4888dep~e 90.00. 144.58" az i 94.00. 140.000 sz 402~departure ' 3893 departure ! 3907 departure Cry 101100 121SSMD 8890WD 90.60" 92.74. az 'm_.\ Cry 10/'100 Cry 101100 12895 Me 8885 TVD 12578 MD 8882 TVD 80.00. 105.39. az =~::.\ --\ ~ 0 TO 13089 MD 8950 TVD 80.62" 105.39. az 8048 dep¡w1ure ----' I 4000 i 4400 6000 I 6400 I 4800 5200 - 5600 Vertical Section Departure at 111.12 deg from (O.O, 0.0). (1 in = 400 feet) ò -4000 -- -4400 -- ^ ^ ^ I l- e:: 0 Z -4800 -5200 I I- ::> 0 en v v v -5600 -6000 Client: Well: Field: Structure: Scale: Date: PLAN V:IEW BP Exploration Alaska Y-37A (P9) Schlumberger Prudhoe Bay Unit - WOA Y-PAD 1 in = 400 ft 18-Feb-2002 2000 I 2400 I 2800 , Tie-In Survey 10616 MD 87551VD 'I ~2O:5 ~~:>~ az Ili ~=:D6/~~7TVD ¡ i 16.66" 162.81' az ¡ ! 4633 5 2262 E ! T' ,I ~;;;;::~ooJaos 1VD / ~-"'.. ' 17.85' 162.8,1'az \.~ -'~-J 46395 226<Ì E / ,r"""'-c-"",~,; Cry 101100 ,¡ ~ 8908 1VD /' 47585 ~..~~az/ ~... .~- - " '-' "., ~~ J i/,.. i.', 80.00' 1.',.05.39'az ; : ~ . -<> ; ~-r~ ~- ; "'" !''',,, ~f~~~: ~~~~L~ ~-~~,r R==1 I -~7-1 ~~-~ 9422" 127.e4,'az 11478MDi.,~TVD I. . I"" XI >{ /.. / i'.. 80.62' 105.39'az 48625 2438r :~ ~rEaz i crvJoo \ ! ~~ 5444S 4381E . . , 12578UD 88621VD'; . 90.00' i 123.71' az 5242 5¡ 3932 E I 2000 I 2400 i 2800 «< WEST 3200 I 3600 , -4000 4000 I 4400 , 4800 True North Mag Dee ( E 26.29° ) '"-" ~ I-propœal I -Survey -4400 -4800 -5200 ~ - ~~ -5600 i 3200 I 3600 EAST »> I 4000 I 4400 -6000 4800 O.I:P ----~ I Tie-In Survey KOP Crv 6/100 Crv 39.6/100 90° Point Crv 10/100 Y -37 A Proposed Well Profile - Geodetic Report Report Date: February 18.2002 Survey / DLS Computation Method: Client: BP Exploration Alaska Vertical Section Azimuth: Field: Prudhoe Bay Unit - WOA (Drill Pads) dy Only Vertical Section Origin: Structure I Slot: V-PAD / Y-37 8 818ty stu TW Reference Datum: Well: Y-37 I Borehole: V-37A Feaslbl Sea Bed I Ground Level Elevation: UWIIAPI#: 500292240301 Magnetic Declination: Survey Name / Date: Y-37 A (P9) / February 18. 2002 Total Field Strength: Tort / AHD / DDII ERD ratio: 421.627° /7545.50 ft / 6.668/ 0.84~ Magnetic Dip: Grid Coordinate System: NAD27 Alaska State Planes, Zone 4, US Feel Declination Date: Location LaULong: N 70.26762332, W 148.83116474 Magnetic Declination Model: Location Grid NlE YfX: N 5948825.220 ftUS, E 644540.760 ftUS North Reference: Grid Convergence Angle: +1.10021858° Total Corr Mag North -> True North: Grid Scale Factor: 0.99992373 Local Coordinates Referenced To: StatIon ID IchlumbBrgBr Minimum Curvature /Lubinski 111.120° N 0.000 ft, E 0.000 ft MSL 50.000 ft relative to MSL 26.286° 57493.203 n1 80.766° April 05. 2002 BGGM 2001 True North +26.286° Well Head -,. Grid Coordinates Geographic Coordinates MD Incl Azim TVD VSec I NI-8 El-W I DLS Northing I Easting latitude - I Longitude (It) (°) (°) (It) (It) (It) (It) (°/1 00ft) (ftUS) (ftUS) 10616.00 17.00 161.60 8754.72 3773.09 -4623.73 2258.79 0.00 5944246.07 646887.73 N 70.25499067 W 148.81291297 10650.00 16.66 162.81 8787.26 3779.28 -4633.10 2261.79 1.44 5944236.76 646890.91 N 70.25496507 W 148.81288875 10670.00 17.85 162.81 8806.36 3782.95 -4638.77 2263.55 6.00 5944231.13 646892.78 N 70.25494958 W 148.81287454 10675.00 19.74 160.89 8811.09 3783.97 -4640.30 2264.05 39.60 5944229.61 646893.31 N 70.25494540 W 148.81287051 10700.00 29.33 154.91 8833.81 3791.14 -4649.86 2268.04 39.60 5944220.13 646897.48 N 70.25491928 W 148.81283829 10725.00 39.07 151.71 8854.47 3801.57 -4662.37 2274.39 39.60 5944207.74 646904.07 N 70.25488510 W 148.81278701 10750.00 48.86 149.63 8872.44 3814.95 -4677 .47 2282.90 39.60 5944192.81 646912.87 N 70.25484384 W 148.81271828 10775.00 58.69 148.09 8887.20 3830.89 -4694.70 2293.33 39.60 5944175.78 646923.62 N 70.25479676 W 148.81263405 10800.00 68.53 146.85 8898.30 3848.91 -4713.55 2305.37 39.60 5944157.17 646936.02 N 70.25474525 W 148.81253681 10825.00 78.37 145.77 8905.41 3868.47 -4733.47 2318.65 39.60 5944137.51 646949.68 N 70.25469082 W 148.81242955 '-' 10850.00 88.22 144.76 8908.32 3889.00 -4753.84 2332.78 39.60 5944117.42 646964.20 N 70.25463516 W 148.81231543 10854.53 90.00 144.58 8908.39 3892.77 -4757.54 2335.40 39.60 5944113.77 646966.89 N 70.25462505 W 148.81229427 10858.62 91.62 144.42 8908.34 3896.19 -4760.87 2337.78 39.60 5944110.49 646969.33 N 70.25461595 W 148.81227505 10859.18 91.62 144.42 8908.32 3896.66 -4761.33 2338.10 0.00 5944110.03 646969.66 N 70.25461469 W 148.81227246 10871.84 94.00 140.00 8907.70 3907.48 -4771.31 2345.85 39.60 5944100.20 646977.60 N 70.25458742 W 148.81220987 10875.00 94.14 140.28 8907.48 3910.24 -4773.73 2347.87 10.00 5944097.82 646979.67 N 70.25458081 W 148.81219355 10876.91 94.23 140.45 8907.34 3911.90 -4775.20 2349.08 10.00 5944096.38 646980.91 N 70.25457679 W 148.81218378 10877.36 94.23 140.45 8907.30 3912.29 -4775.55 2349.37 0.00 5944096.03 646981.20 N 70.25457583 W 148.81218143 Y-37A (P9) report.xls Page 1 of 5 2/18/2002-2:19 PM Grid Coordinate¡ Geographic Coordinate¡ Station 10 MO I Incl I Azim I TVD I VSec I N/oS I EI-W I OLS Northing I Easting Latitude I Longitude (ft) (°) (°) (ft) (ft) (ft) (ft) (0/100ft) (ftUS) (ftUS) 10900.00 94.24 138.18 8905.63 3932.19 -4792.66 2364.08 10.00 5944079.21 646996.24 N 70.25452908 W 148.81206262 10925.00 94.25 135.68 8903.78 3954.63 -4810.88 2381.11 10.00 5944061.32 647013.61 N 70.25447929 W 148.81192506 10950.00 94.25 133.17 8901.93 3977.53 -4828.33 2398.91 10.00 5944044.22 647031.74 N 70.25443160 W 148.81178128 10975.00 94.24 130.66 8900.08 4000.83 -4844.98 2417.46 10.00 5944027.93 647050.61 N 70.25438610 W 148.81163144 11000.00 94.22 128.16 8898.23 4024.50 -4860.81 2436.73 10.00 5944012.47 647070.18 N 70.25434283 W 148.81147577 Crv 10/100 11001.79 94.22 127.98 8898.10 4026.21 -4861.91 2438.13 10.00 5944011.40 647071.60 N 70.25433983 W 148.81146446 11020.83 92.83 126.67 8896.93 4044.46 -4873.43 2453.24 10.00 5944000.17 647086.92 N 70.25430834 W 148.81134241 11020.95 92.83 126.67 8896.92 4044.57 -4873.50 2453.34 0.00 5944000.10 647087.03 N 70.25430815 W 148.81134160 11025.00 92.81 126.27 8896.72 4048.47 -4875.90 2456.59 10.00 5943997.77 647090.32 N 70.25430159 W 148.81131534 11050.00 92.69 123.77 8895.52 4072.71 -4890.23 2477.04 10.00 5943983.83 647111.04 N 70.25426242 W 148.81115014 11075.00 92.56 121.27 8894.38 4097.19 -4903.65 2498.10 10.00 5943970.82 647132.35 N 70.25422574 W 148.81098001 .-- 11100.00 92.42 118.77 8893.29 4121.87 -4916.15 2519.72 10.00 5943958.74 647154.21 N 70.25419157 W 148.81080536 11125.00 92.29 116.27 8892.27 4146.69 -4927.69 2541.87 10.00 5943947.63 647116.õT N 70.25416003 W 148.81062642 11150.00 92.14 113.77 8891.30 4171.61 -4938.25 2564.51 10.00 5943937.50 647199.41 N 70.25413116 W 148.81044352 11175.00 92.00 111.27 8890.40 4196.58 -4947.82 2587.59 10.00 5943928.38 647222.67 N 70.25410499 W 148.81025706 11200.00 91.84 108.78 8889.56 4221.56 -4956.38 2611.06 10.00 5943920.27 647246.30 N 70.25408158 W 148.81006744 11225.00 91.69 106.28 8888.79 4246.50 -4963.90 2634.89 10.00 5943913.21 647270.26 N 70.25406102 W 148.80987492 11250.00 91.53 103.78 8888.09 4271.35 -4970.38 2659.02 10.00 5943907.20 647294.51 N 70.25404329 W 148.80967997 11275.00 91.37 101.29 8887.45 4296.06 -4975.81 2683.41 10.00 5943902.24 647319.00 N 70.25402843 W 148.80948291 11300.00 91.21 98.79 8886.89 4320.58 -4980.17 2708.02 10.00 5943898.35 647343.69 N 70.25401650 W 148.80928408 11325.00 91.04 96.30 8886.40 4344.88 -4983.45 2732.80 10.00 5943895.55 647368.52 N 70.25400751 W 148.80908387 11350.00 90.88 93.80 8885.98 4368.90 -4985.65 2757.70 10.00 5943893.83 647393.46 N 70.25400148 W 148.80888268 11375.00 90.71 91.31 8885.63 4392.59 -4986.76 2782.67 10.00 5943893.20 647418.44 N 70.25399842 W 148.80868093 11400.00 90.54 88.82 8885.36 4415.92 -4986.79 2807.66 10.00 5943893.65 647443.43 N 70.25399831 W 148.80847901 11425.00 90.36 86.32 8885.17 4438.83 -4985.73 2832.64 10.00 5943895.19 647468.38 N 70.25400118 W 148.80827717 11450.00 90.19 83.83 8885.05 4461.29 -4983.59 2857.54 10.00 5943897.80 647493.23 N 70.25400701 W 148.80807598 11475.00 90.02 81.33 8885.00 4483.25 -4980.36 2882.33 10.00 5943901.51 647517.95 N 70.25401580 W 148.80787567 -" Crv 10/100 11477.79 90.00 81.06 8885.00 4485.67 -4979.93 2885.09 10.00 5943901.99 647520.71 N 70.25401698 W 148.80785336 11500.00 88.05 82.13 8885.38 4504.99 -4976.68 2907.06 10.00 5943905.66 647542.61 N 70.25402583 W 148.80767584 11503.56 87.74 82.30 8885.51 4508.11 -4976.20 2910.58 10.00 5943906.21 647546.12 N 70.25402714 W 148.80764740 11503.77 87.74 82.30 8885.52 4508.29 -4976.17 2910.79 0.00 5943906.24 647546.33 N 70.25402722 W 148.80764570 11525.00 87.86 84.42 8886.33 4527.06 -4973.72 2931.86 10.00 5943909.10 647567.34 N 70.25403389 W 148.80747545 11550.00 88.01 86.92 8887.23 4549.62 -4971.83 2956.77 10.00 5943911.46 647592.21 N 70.25403903 W 148.80727417 11575.00 88.16 89.41 8888.06 4572.63 -4971.03 2981.74 10.00 5943912.74 647617.16 N 70.25404119 W 148.80707241 11600.00 88.32 91.91 8888.83 4596.04 -4971.32 3006.73 10.00 5943912.93 647642.15 N 70.25404037 W 148.80687049 Y -37 A (P9) report.xls Page 2 of 5 2/18/2002-2:19 PM Grid Coordinates Geographic Coordinates Station ID MD I Inel I Azim I TVD I VSec I N/-5 I EI-W I DLS Northing I fasting Latitude I Longitude (ft) (°) (°) (ft) (ft) (ft) (ft) (0/100ft) (ftUS) (ftUS) 11625.00 88.47 94.41 8889.53 4619.81 -4972.70 3031.68 10.00 5943912.03 647667.12 N 70.25403657 W 148.80666890 11650.00 88.63 96.90 8890.17 4643.89 -4975.16 3056.54 10.00 5943910.05 647692.02 N 70.25402982 W 148.80646804 11675.00 88.79 99.40 8890.73 4668.25 -4978.70 3081.28 10.00 5943906.99 647716.82 N 70.25402012 W 148.80626816 11700.00 88.96 101.89 8891.22 4692.82 -4983.32 3105.85 10.00 5943902.84 647741.47 N 70.25400748 W 148.80606965 11725.00 89.13 104.39 8891.63 4717.57 -4989.00 3130.19 10.00 5943897.63 647765.92 N 70.25399193 W 148.80587300 11750.00 89.30 106.88 8891.98 4742.46 -4995.74 3154.26 10.00 5943891.35 647790.11 N 70.25397349 W 148.80567854 11775.00 89.47 109.38 8892.25 4767.42 -5003.52 3178.01 10.00 5943884.03 647814.00 N 70.25395221 W 148.80548667 11800.00 89.64 111.87 8892.45 4792.41 -5012.32 3201.41 10.00 5943875.68 647837.56 N 70.25392814 W 148.80529763 11825.00 89.81 114.36 8892.57 4817.40 -5022.13 3224.40 10.00 5943866.32 647860.74 N 70.25390131 W 148.80511191 11850.00 89.98 116.86 8892.61 4842.32 -5032.94 3246.94 10.00 5943855.94 647883.48 N 70.25387175 W 148.80492983 11875.00 90.15 119.35 8892.58 4867.13 -5044.72 3268.99 10.00 5943844.59 647905.75 N 70.25383955 W 148.80475171 .--- Crv 10/100 11896.63 90.30 121.51 8892.50 4888.47 -5055.67 3287.64 10.00 5943834.00 647924.60 N 70.25380961 W 148.80460105 11898.67 90.37 121.32 8892.49 4890.48 -5056.73 3289.38 10.00 5943832.97 647926.36 N 70.25380671 W 148.80458700 11899.50 90.37 121.32 8892.48 4891.30 -5057.17 3290.09 0.00 5943832.55 647927.08 N 70.25380551 W 148.80458126 11900.00 90.38 121.27 8892.48 4891.79 -5057.43 3290.52 10.00 5943832.30 647927.52 N 70.25380480 W 148.80457779 11925.00 90.40 118.77 8892.31 4916.49 -5069.93 3312.16 10.00 5943820.21 647949.39 N 70.25377062 W 148.80440299 11950.00 90.42 116.27 8892.13 4941.33 -5081.48 3334.33 10.00 5943809.09 647971.78 N 70.25373904 W 148.80422390 11975.00 90.45 113.77 8891.94 4966.27 -5092.05 3356.98 10.00 5943798.96 647994.62 N 70.25371014 W 148.80404093 12000.00 90.47 111.27 8891.74 4991.26 -5101.63 3380.07 10.00 5943789.83 648017.89 N 70.25368394 W 148.80385440 12025.00 90.49 108.77 8891.53 5016.25 -5110.19 3403.56 10.00 5943781.72 648041.54 N 70.25366052 W 148.80366464 12050.00 90.51 106.27 8891.31 5041.20 -5117.71 3427.40 10.00 5943774.66 648065.52 N 70.25363995 W 148.80347204 12075.00 90.53 103.77 8891.09 5066.05 -5124.19 3451.54 10.00 5943768.64 648089.78 N 70.25362222 W 148.80327702 12100.00 90.55 101.27 8890.85 5090.77 -5129.61 3475.94 10.00 5943763.69 648114'.27 N 70.25360738 W 148.80307989 12125.00 90.56 98.77 8890.61 5115.30 -5133.96 3500.56 10.00 5943759.82 648138.97 N 70.25359547 W 148.80288099 12150.00 90.58 96.27 8890.36 5139.59 -5137.23 3525.34 10.00 5943757.02 648163.81 N 70.25358650 W 148.80268078 12175.00 90.59 93.77 8890.11 5163.61 -5139.42 3550.24 10.00 5943755.31 648188.74 N 70.25358049 W 148.80247960 Crv 10/100 12185.29 90.60 92.74 8890.00 5173.40 -5140.00 3560.51 10.00 5943754.93 648199.02 N 70.25357889 W 148.80239663 ~ 12200.00 92.07 92.75 8889.66 5187.36 -5140.70 3575.20 10.00 5943754.51 648213.72 N 70.25357696 W 148.80227794 12225.00 94.57 92.76 8888.21 5211.04 -5141.90 3600.13 10.00 5943753.79 648238.67 N 70.25357365 W 148.80207651 12250.00 97.07 92.77 8885.67 5234.65 -5143.10 3624.97 10.00 5943753.07 648263.52 N 70.25357034 W 148.80187582 12258.33 97.90 92.78 8884.59 5242.49 -5143.50 3633.22 10.00 5943752.83 648271.78 N 70.25356923 W 148.80180916 12259.19 97.90 92.78 8884.47 5243.30 -5143.55 3634.07 0.00 5943752.79 648272.63 N 70.25356909 W 148.80180229 12275.00 97.55 94.33 8882.34 5258.23 -5144.52 3649.71 10.00 5943752.12 648288.29 N 70.25356642 W 148.80167593 12300.00 96.97 96.79 8879.18 5282.12 -5146.92 3674.39 10.00 5943750.20 648313.00 N 70.25355983 W 148.80147653 12325.00 96.39 99.23 8876.27 5306.30 -5150.38 3698.97 10.00 5943747.21 648337.64 N 70.25355035 W 148.80127794 Y -37 A (P9) report.xls Page 3 of 5 2/18/2002-2:19 PM Grid Coordinates Geographic Coordinates Station ID MD I Inel I Azim I TVD I VSec I NJ-S I EJ.W I DLS Northing I Easting Latitude I Longitude (ft) (°) (°) (ft) (ft) (ft) (ft) e/100ft) (ftUS) (ftUS) 12350.00 95.79 101.67 8873.62 5330.73 -5154.89 3723.42 10.00 5943743.17 648362.17 N 70.25353800 W 148.80108041 12375.00 95.18 104.11 8871.23 5355.36 -5160.44 3747.67 10.00 5943738.09 648386.52 N 70.25352280 W 148.80088450 12400.00 94.56 106.54 8869.11 5380.14 -5167.03 3771.69 10.00 5943731.96 648410.67 N 70.25350476 W 148.80069045 12425.00 93.93 108.97 8867.26 5405.02 -5174.63 3795.44 10.00 5943724.82 648434.55 N 70.25348397 W 148.80049859 12450.00 93.30 111.39 8865.68 5429.97 -5183.23 3818.85 10.00 5943716.67 648458.12 N 70.25346044 W 148.80030948 12475.00 92.66 113.81 8864.38 5454.92 -5192.83 3841.90 10.00 5943707.52 648481.35 N 70.25343418 W 148.80012328 12500.00 92.02 116.23 8863.36 5479.84 -5203.39 3864.53 10.00 5943697.39 648504.18 N 70.25340530 W 148.79994048 12525.00 91.37 118.64 8862.63 5504.68 -5214.90 3886.71 10.00 5943686.31 648526.57 N 70.25337383 W 148.79976132 12550.00 90.72 121.06 8862.17 5529.38 -5227.34 3908.39 10.00 5943674.29 648548.49 N 70.25333981 W 148.79958621 12575.00 90.07 123.4 7 8862.00 5553.91 -5240.69 3929.53 10.00 5943661.35 648569.88 N 70.25330331 W 148.79941546 Crv 10/100 12577.52 90.00 123.71 8862.00 5556.37 -5242.08 3931.63 10.00 5943660.00 648572.00 N 70.25329951 W 148.79939850 -~/ 12600.00 89.99 125.96 8862.00 5578.21 -5254.92 3950.08 10.00 5943647.52 648590.70 N 70.25326441 W 148.79924948 12625.00 89.99 128.46 8862.00 5602.23 -5270.04 3969.98 10.00 5943632.79 648610.88 N 70.25322307 W 148.79908876 12635.48 89.99 129.51 8862.01 5612.20 -5276.63 3978.13 10.00 5943626.35 648619.16 N 70.25320506 W 148.79902294 12635.59 89.99 129.51 8862.01 5612.31 -5276.71 3978.22 0.00 5943626.28 648619.25 N 70.25320484 W 148.79902221 12650.00 89.42 128.19 8862.08 5626.03 -5285.74 3989.44 10.00 5943617.46 648630.64 N 70.25318015 W 148.79893160 12675.00 88.43 125.89 8862.55 5650.06 -5300.80 4009.39 10.00 5943602.79 648650.87 N 70.25313898 W 148.79877047 12700.00 87.44 123.59 8863.45 5674.34 -5315.04 4029.91 10.00 5943588.95 648671.66 N 70.25310005 W 148.79860474 12725.00 86.46 121.29 8864.79 5698.82 -5328.43 4050.98 10.00 5943575.97 648692.98 N 70.25306344 W 148.79843456 12750.00 85.48 118.98 8866.54 5723.45 -5340.95 4072.55 10.00 5943563.86 648714.79 N 70.25302920 W 148.79826034 12775.00 84.51 116.67 8868.72 5748.18 -5352.57 4094.57 10.00 5943552.67 648737.02 N 70.25299742 W 148.79808248 12800.00 83.55 114.35 8871.32 5772.97 -5363.28 4117.01 10.00 5943542.39 648759.66 N 70.25296813 W 148.79790122 12825.00 82.61 112.02 8874.33 5797.77 -5373.05 4139.82 10.00 5943533.06 648782.65 N 70.25294141 W 148.79771697 12850.00 81.67 109.68 8877.75 5822.53 -5381.86 4162.96 10.00 5943524.70 648805.96 N 70.25291730 W 148.79753005 12875.00 80.74 107.33 8881.58 5847.21 -5389.70 4186.39 10.00 5943517.31 648829.53 N 70.25289585 W 148.79734079 Crv 10/100 12895.47 80.00 105.39 8885.00 5867.32 -5395.39 4205.75 10.00 5943512.00 648849.00 N 70.25288027 W 148.79718439 12900.00 79.55 105.39 8885.80 5871.76 -5396.57 4210.05 10.00 5943510.90 648853.32 N 70.25287704 W 148.79714966 ~ 12925.00 77.05 105.39 8890.87 5896.11 -5403.07 4233.65 10.00 5943504.85 648877.04 N 70.25285925 W 148.79695901 12950.00 74.55 105.39 8897.01 5920.23 -5409.50 4257.02 10.00 5943498.87 648900.52 N 70.25284165 W 148.79677022 12975.00 72.05 105.39 8904.19 5944.05 -5415.85 4280.10 10.00 5943492.97 648923.72 N 70.25282426 W 148.79658378 13000.00 69.55 105.39 8912.41 5967.54 -5422.12 4302.86 10.00 5943487.14 648946.59 N 70.25280710 W 148.79639992 13025.00 67.05 105.39 8921.66 5990.65 -5428.29 4325.25 10.00 5943481.40 648969.10 N 70.25279021 W 148.79621905 13050.00 64.55 105.39 8931.91 6013.34 -5434.34 4347.24 10.00 5943475.77 648991.20 N 70.25277365 W 148.79604141 13075.00 62.05 105.39 8943.14 6035.56 -5440.27 4368.77 10.00 5943470.26 649012.83 N 70.25275741 W 148.79586748 TO 13089.30 60.62 105.39 8950.00 6048.04 -5443.60 4380.86 10.00 5943467.16 649024.99 N 70.25274830 W 148.79576982 Y -37 A (P9) report.xls Page 4 of 5 2/18/2002-2: 19 PM ... 11/4 Turn L T Valve I I I I Py.I~qii~rt ,"'" ......~Ii I mu Ul:f'~~~:~i~"" -"\/16"5000PSIRX-46 I : HCR ' :I~:~~~>:'" ", ~ ÆM rn @'T': [:.:.:.:.:.:.:.:.:.:.:.:.:.:.:.:... , .. " . . .'. . ~, :"'''I'~'''''''dl.....~.:J ~: Mil : ~ ' .l""" ,'- 'f' ~ .'. ... . ~ I Kill Line I l,gh9,~!tb'ne. II '.~,.\" I t I ... I I I l .. ~b" :.tò~,~j~ 12 1116" 5000 psi. RX.24 I I t¡~~t I I I \IY2'3là'~'};øW~M'1 [' :}~:~:~ ~ (>.'i:'~T¿T':::~< l' . 1 ~ 1 7 1/16" 6000 psi (RX-46) or F'::"::r':'=:' "j +-- 4 1/16" 5000 psi (RX-39) . !~~WI.III~ ~ ;~1, ~ I Swab Valve I f.-=:::'<¡::~~ .,....I.I.I.I.I.,-*Wf.~y""'\' L~~'~'~~ '¡:¡:¡:¡:ii'III~~I~ii:¡:¡'~r.=::~~I*:::';"~"~aW,~,l,l,l,,~~m"í"ii'i1d1 ~ W~"". = ;~::~l~~:~~'}, I SSV I '.:.J~',:",:~: ..:::...~.:~=$:tti ::~:;:"WI4;. 6~j"WfI{I1''I.:1l1i .,.....W':""""«'.'."~" I"~:-:-"'~::-'::~ii ~;~)¡~ ~.j .. it~~im~~1~ I:=::.:-:-~~v~;~~~ ~~J, lI)i»ÎÌÌÌIIÎlN)' De1i' . >.~'~~~~~t'ii:;t::~ . . ~. ;.~ :::.:: ~d'. "'''',' .' . :". .~:~~.";;.~..~.. .~~::\.~."' .; :.~:.:~t./. ':Y'.':;. Well I 15-29 I I .:. .. . .. .. ....."" ... ... . l~i:¡:æm::B~~:::::::1 Tree Size ') BOP-Tree ) Rig Floor I I Ä -. - -.. - -... -.".. - - - . . -.- ~..~ I ' .. J~II' ~'""' '111 ,'C' . ',.:,t'.:.~.:~(.Æ~~\J KB Elevation . . .--ij::::::::::::::::::::::::::::::::::::::::::::::~ lubricator 10 = 6.375" with 6" Otis Unions It ~/1ô" 5000 psi BOP's. 10 = 1.06" '1 I I ------1.'.,',"':' .,J .~11/16h 5000 psi, RX-46 I L .... :.:~rffli:ii.'~ . ..' --.1 I I I I Master Valve I 1 tubing x 9-5/811 Annulus ~ I . ~ ,<r\:,~,>~(, . ~'~"':-:'....x:.. :~...:--:.-:-::mJ L~~¡~~~~', I ,:'~!';2::: .~:.~:. I I 19-5/811 X 13-3/811 Annulus I I Base FlanQe Page 1 H 204445 ) ) DATE 01/17/02 CHECK NO. 00204445 DATE INVOICE I CREDIT MEMO DESCRIPTION GROSS 100.00 VENDOR DISCOUNT ALASKAOILA NET 00 011602 CKOl1602L PYMT :OMMENTS: HANDLING INST: 100.00 Per~it to Drill ~ee 6tH - Terrie Hub11e X4628 f 37 fj RECEiVED FEB 2. 0 2002 Alaska Oil &: Gas :;005. Commission And orage IE ATTACHED CHECK IS IN PAYMENT FOR ITEMS DESCRIBED ABOVE. TOTAL ~ 100.00 100.00 BP EXPLORATION, (ALASKA) INC. P.O. BOX 196612 ANCHORAGE, ALASKA 99519-6612 FIRST NATIONAL BANK OF ASHLAND AN AFFILIATE OF NATIONAL CITY BANK CLEVELAND, OHIO No. H 204445 CONSOLIDATED COMMERCIAL ACCOUNT 56.389 """"412 00204445 PAY OO/100.**~********************************* US DOLLAR To The ORDER Of ALASKA OIL AND GAS CONSERVATION COMMISSION 333.WES:t 7TH AVENUE SUITE 100 ANCHORAGE . DATE 0.1/17/02 AMOUNT .$100~ 00 NOTVALlD AFTER 120 DAYS AK 99501 .n .... ............. -~~;~~'-'--":"'jl ............ \Ç~~~f$~"~ III 2 0 .. .. .. 5 III I: 0... ~ 2 0 ~ a 11 5 I: 0 0 a ..... ~ Ii III ~ "') ') TRANSMIT AL LETTER CHECK LIST CIRCLE APPROPRIATE LETTERlPARAGRAPHS TO BE INCLUDED IN TRANSMITTAL LETTER WELL NAME !ßt( r- '37/-1 , CHECK 1 ST ANDARD LEITER DEVELOPMENT DEVELOPMENT. REDIDLL ~ EXPLORATION INJECTION WELL INJECTION WELL REDRILL CHECK WHAT APPLIES ADD-ONS (OPTIONS) MULTI LATERAL (If api number last two (2) digits are between 60-69) PILOT HOLE (PH) ANNULAR D~S~~L V ANNULAR DISPOSAL L-> YES ANNULAR DISPOSAL THIS WELL' "CLUE" Tbe permit is for a new wellbore segment of existing well ~ Permit No, ,API No. . " Production sbould continue to be reported as a function of tbe original API number stated above. ' In accordance witb 20 AAC 25.005(1), all records, data and logs acquired for tbe pilot hole must be dearly , differentiated in both name (name on permit plus PH) and API number (50 -70/80) from records, data and logs acquired for wel~ (name on permit). Annular disposal bas flot been requested. . . Annular Disposal, of drilling wastes will not be approved. . . Annular Disposal of drilling wastes will not be approved. . . DISPOSAL INTO OTHER Please note tbatan disposal of fluids generated. '. . ANNULUS L..J YES + SP ACING EXCEPTION Templates are located m drive\jody\templates Enclosed is tbe approved application for permit to drill tbe above referenced well. Tbe permit is approved ,subject to full compliance witb 20 AAC 25.055. Approval to peñorate and produce is contingent upon issuance of a conservation order approving a spacing exception. (Company Name) will assume the liability of any protest to tbe spacing exception tbat may occur. WELL PERMIT CHECKLIST COMPANY ðP;<:. WE~L NAME fl3ti ~ ß 7/1 PROGRAM: Exp - Dev - Redrll ~~rv - Wellbore seg - Ann. disposal para req FIELD & POOL ~fb / 5/ ~ INIT CLASS ~ V / ¿:J / L GEOL AREA B1{) UNIT# DI/ (¿;,Q~ ON/OFF SHORE ¿;J;1 ADMINISTRATION 1. Permit fee attached. N 2. Lease number appropri~t~.' : : : : : : : : : : : : : : : : : : .:f;;Lrf¿< ~ ¿-: ¿¿.?h~ ~(., .r/.PL-Cl2~/) ~I? p.:;/.=/' ~þ I/~ ~ 3. Unique well name and number... . . . . . . . . . . . . . . . '/. Õ. ~ /1:Dl- 0 i7~71- i/ 4. Well located in a defined pool.. . . . . . . . . . . . . . . . . 5. Well located proper distance from drilling unit boundary. . . . 6. Well located proper distance from other wells.. . . . . . . . . 7. Sufficient acreage available in drilling unit.. . . . . . . . . . . 8. If deviated, is wellbore plat included.. . . . . . . . . . . . . . N 9. Operator only affected party.. . . . . . . . . . . . . . . . . . N 10. Operator has appropriate bond in force. . . . . . . . . . . . . N 11. Permit can be issued without conservation order. . . . . . . . N A~P~R DATE., _12. Permit ca~ be issued without administrativ~ approval.. . . . . .' N '2' z.1- 0 ~ 13. Can permit be approved before 15-day walt.. . . . . . . . . . N GINEERING 14. Conductor string provided. . . . . . . . . . . . . . . . . . . -v-N- NIA 15. Surface casing protects all known USDWs. . . . . . . . . . . ¥-N- iC 16. CMT vol adequate to circulate on conductor & surf csg. . . . . .¥-tr 17. CMT vol adequate to tie-in long string to surf csg. . . . . . . . 'f-. N. ' 18. CMT will cover all known productive horizons. . . . . . . . . . éf N A~}¡V-4.b e.~~ s. ~{. 19. Casing designs adequate for C, T, B & permafrost. . . . . . . ~ N P ~~: ~~e~~~~~I~~~~a;~g~;~;~:;~~:~d~n~~~t b~e~ ~pp~o~~d: : : '. ~ lfrPr()~( J 7,1 V { 0 L . 22. Adequate wellbore separation proposed.. . . . . . . . . . . . N 23. If diverter required, does it meet regulations. . . . . . . . . . .¥:-N- 24. Drilling fluid program schematic & equip list adequate. . . . . J N 25. BOPEs, do they meet regulation. . . . . . . . . . . . . . . . N. . 26. BOPE press rating appropriate; test to 3500 psig. N çfdl CTU gaPE 1<'S(. 27. Choke manifold complies w/API RP-53 (May 84). . . . . . . . . N 28. Work will occur without operation shutdown. . . . . . . . . . . ~. - N. \... ....1- . 29. Is presence of H2S gas probable.. . . . . . . . . . . . . . . . ~ N ':::>..eJL ~IG<-V' 30. Permit can be issued w/o hydrogen sulfide measures. . . . . Y ~- p- 37 wæ-- I~~ 41 ;:C>y'~ ~ ~ . 31. Data presented on potential overpressure zones. . . . . . . .-~ 32. Seismic analysis of shallow gas zones. . . . . . . . . . . .. í\ Y N AP~R DATE 33. Seabed condition survey (if off-shore). . . . . . . . . .. . IV Y N /:1 Ò z- . 2_7. D 2--34. Contact name/phone for weekly progress reports [expl atory only] Y N ANNULAR DISPOSAL 35. With proper cementing records, this plan (A) will contain waste in a suitable receiving zone; . . . . . . . Y N. . I -l . (B) will not contaminate freshwater; or cause drilling waste. .. Y N tJ.o Ct,.t,A-t^- i,;lla1/ M s.. Jtr; $e-v I r-ejt' ¿,W ç 'kd . to surface; , (C) will not impair mechanical integrity of the well used for disposal; Y N (0) will not damage producing formation or impair recovery from a Y N pool; and (E) will not circumvent 20 AAC 25.252 or 20 AAC 25.412. Y N GEOLOGY: ENGINEERING: UIC/Annular: COMMISSION: TEM m--<7fY)~S- WG;\ffitFC APPR DATE 'L¡.j(jA 3{Lfl OL- ft-cy¡r¡ V5~J- GEOLOGY APPR DATE ( ( Comments/Instructions: RPC /~ COT DTS03( aïlG~ JMH dMl~ ~lJ{)r G:\geology\templates\checklist.doc