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Home My WebLink About219-069PBU F-481.1 (PTD 219-068), PBU F-481-1-01 (PTD 219-069), PBU F-48A (PTD 219-100) and PBU F-48AL1 (PTD 219-101) Note to File Well Names, Permit to Drill Numbers, and API Numbers Summary In April 2019, BP submitted Permit to Drill applications for two proposed well branches-PBU F-481_1 and PBU F-481-1-01-to be drilled from the primary well PBU F-48. BP's intent was to drill L1 to a depth of 15,074' MD, set a whipstock, and then drill 1-1-01. In May 2019, AOGCC approved these applications. On July 2, 2019, BP spud the F-481_1 well branch and drilled to 12,970' MD. Subsequent problems with the casing window, wellbore instability, lost -then -recovered pipe, and down -hole bridges resulted loss of this section of hole. A second whipstock was set and cemented at 12,465' MD, isolating primary well F-48. This isolation required the name of new planned borehole be changed from F-481-1 to F-48A and the name of the second planned well branch to be changed from F-481-1-01 to F-48AL1. To minimize confusion from this name change, AOGCC requested BP submit two new Permit to Drill applications for F-48A and F-48AL1. These applications were approved by AOGCC on July 17, 2021. For clarity of record, all drilling operations previously conducted under F-48L1(beginning with the lost section of wellbore that was spud July 2, 2019) were reassigned to F-48A. The lost section of hole drilled to 12,970' MD is now named F-48A PB1. On July 17,2021, the F-48A wellbore was spud and drilled to a total depth of 13,000' MD. Problems were again encountered, and the well was placed in operations shutdown status. On July 17, 2020, AOGCC extended this status through July 30, 2021. On May 14, 2021, AOGCC granted Hilcorp's (BP's successor as operator) request to end operations shutdown and place the well on production. Details In April 2019, BP submitted Permit to Drill applications for two proposed well branches to be drilled from the primary well PBU F-48. In May 2019, AOGCC issued two Permits to Drill for PBU F-48A L1 (PTD 219- 068, API 50-029-22187-60-00) and PBU F-48A L1-01 (PTD 219-069, API 50-029-22187-61-00). BP's intent was to drill L1 to a depth of 15,074' MD, set a whipstock, and then drill 1-1-01. On July 1, 2019, BP set a whipstock at 12,496' MD and milled a window through the casing string. On July 2, 2019, BP began drilling the L1 well branch, reaching a total depth of 12,970' MD that same day. Following a wiper trip into casing, the drilling bit and string encountered problems while attempting to pass downward through the casing window. After further milling (dressing) of the window, the operator was unable to get the drill bit below 12,900' MD. Following a wiper trip, the drill string was eased down from 12,890' and reamed back to bottom. After 5 feet of drilling, it appeared as new hole was being drilled. Two subsequent wiper trips were made to the casing window, then the hole began packing off at about 12,350' MD. The operator was able to move pipe to 12,460' MD, then during the evening of July 4m the pipe became stuck. On July 7th, the operator rigged up to recover the stuck pipe. On July 91h, the coiled tubing drill string was cut at 12,233' MD. On July 11th, a new reel of coiled tubing was installed, a milling BHA was run in hole, and the top of the lost tubing was dressed. A fishing assembly was rigged up on July 12th, the operator latched onto the fish and began jarring. On July 13, the lost drill string was recovered. The hole was cleaned out to 12,455' MD where a hard bridge was encountered. Unsuccessful attempts were made to ram through the bridge, then the hole was cleaned out to 12,498' MD. On July 15th, a second whipstock was set and cemented at 12,465' MD. Because of drilling problems, BP's proposed operations were changed, requiring either revised or new Permit to Drill applications for AOGCC approval. For clarity of record, at AOGCC's request on July 15th BP submitted two new Permit to drill applications: the wellbore formerly known as F-481-1 was renamed F- 48A because the second whipstock at 12,465' MD was cemented, which eliminated communication with the primary wellbore F-48. To minimize confusion, the Permits to Drill for F-481-1 (PTD 219-068, API 50-029-22187-60-00) and PBU F- 48 L1-01 (PTD 219-069, API 50-029-22187-61-00) were cancelled, and two new applications were submitted for F-48A (PTD 219-100, API 50-029-22187-01-00) and F-48AL1 (PTD 219-101, API 50-029- 22187-62). All operations previously conducted in the wellbore formerly known as F-48L1 were reassigned to F-48A (PTD 219-100). Because the section of wellbore drilled to 12,790' MD was lost, this lost section is now labeled F-48A PB1, and all information from that lost section are recorded under Permit to Drill number 219-100 and labeled with the API Number of 50-029-22187-70-00. On July 17th, the F-48A wellbore was spud and drilled to a total depth of 13,000' MD. Problems were again encountered at the window and with bridges in the wellbore. On July 21, 2019 operations ceased in F-48A and the well was placed in operations shutdown status. On July 17, 2020, AOGCC extended the operations shutdown status through July 30, 2021. On May 14, 2021, AOGCC granted Hilcorp's (BP's successor as operator) request to end operations shutdown and place the well on production. S. Davies May 21, 2021 Boyer, David L (CED) From: Lastufka, Joseph N <Joseph,Lastufka @bp.com> Sent: Tuesday, July 16, 2019 9:48 AM To: Boyer, David L (CED) Cc: Davies, Stephen F (CED); Rixse, Melvin G (CED) Subject: RE: Change in Scope fpr F-48 Lateral Thanks Dave! I've cascaded the decision internally to (hopefully) eliminate any possible confusion during the drilling / reporting. Thank you, Joe Lastufka SIM Specialist Cell: (907) 227-8496 1 Office: (907) 564-4091 Subsurface & Weds BP Exploration Alaska 1900 E. Benson Blvd. Room: 717E Anchorage, AK --------------------------------------------------------------------------------------------------- From: Boyer, David L (CED) <david.boyer2@alaska.gov> Sent: Tuesday, July 16, 2019 9:44 AM To: Lastufka, Joseph N <Joseph. Lastufka @ bp.com> Cc: Davies, Stephen F (CED) <steve.davies@alaska.gov>; Rixse, Melvin G (CED) <melvin.rixse@alaska.gov> Subject: Change in Scope fpr F-48 Lateral Joe, Steve, Mel, and I discussed the naming for the new F-48 PTD's submitted yesterday. We agree on the well names: F-48A (50-029-22187-01-00) and F-48AL1 (5Q029-22187-62-00) submitted by BP. Everyone is in consensus that reusing the -60 and -61 from the previous laterals will only cause confusion in the future for BP and AOGCC. Thank you for calling our attention to this issue. Dave B 1 THE STATE I WAI 4 1 b- WZA GOVERNOR BILL WALKER Sean Mclaughlin Engineering Team Lead BP Exploration (Alaska), Inc. PO Box 196612 Anchorage, AK 99519-6612 Alaska Oil and Gas Conservation Commission Re: Prudhoe Bay Field, Prudhoe Oil Pool, PBU F-48L1-01 BP Exploration (Alaska), Inc. Permit to Drill Number: 219-069 Surface Location: 3362' FSL, 2863' FEL, Sec. 02, T11N, RUE, UM Bottomhole Location: 3797' FSL, 4611' FEL, Sec. 34, T12N, R13E, UM 333 West Seventh Avenue Anchorage, Alaska 99501-3572 Main: 907.279.1433 Fax: 907.276.7542 www.aogcc.alaska.gov Dear Mr. Mclaughlin: Enclosed is the approved application for the permit to redrill the above referenced development well. The permit is for a new wellbore segment of existing well Permit No. 191-086, API No. 50-029-22187-00- 00. Production should continue to be reported as a function of the original API number stated above. Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071, composite curves for well logs run must be submitted to the AOGCC within 90 days after completion, suspension or abandonment of this well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the AOGCC reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the AOGCC specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or an AOGCC order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, Daniel T. Seamount, Jr. Commissioner C� r DATED this 3 day of May, 2019. STATE OF ALASKA kLASKA OIL AND GAS CONSERVATION COMMI: PERMIT TO DRILL 20 AAC 25.005 RECEIVED APR 29 2019 1 a. Type of Work: 1 b. Proposed Well Class: Exploratory -Gas ❑ Service -WAG ❑ Service - Disp ❑ 1 c. Specify if II(r' sp��®for: Drill ❑ Lateral Stratigraphic Test ❑ Development - Oil 0 'Service - Wnj ❑ Single Zone 0 Coalbed Gas: �Ga pkivtirate Redrill ❑ Reentry ❑ Exploratory - Oil ❑ Development - Gas ❑ Service - Supply ❑ Multiple Zone ❑ Geothermal ❑ Shale Gas ❑ 2. Operator Name: 5. Bond Blanket 0 'Single Well ❑ 11 Well Name and Number: BP Exploration (Alaska), Inc Bond No. 29S105380 PBU F-481-1-01 3 Address: 6. Proposed Depth: 12. Field/Pool(s): P.O. Box 196612 Anchorage, AK 99519-6612 MD: 14093' TVD: 8782'ss PRUDHOE BAY, PRUDHOE OIL 4a. Location of Well (Governmental Section): 7. Property Designation (Lease Number): ADL 028280, 028277 & 028278 Surface: 3362' FSL, 2863' FEL, Sec. 02, T11N, R13E, UM g DNR Approval Number: PP 13. Approximate spud date: Top of Productive Horizon: 3538' FSL, 3198' FEL, Sec. 34, T12N, R13E, UM 87-035 July 11, 2019 9. Acres in Property: 2560 14. Distance to Nearest Property: Total Depth: 3797' FSL, 4611' FEL, Sec. 34, T12N, R13E, UM 9550 4b. Location of Well (State Base Plane Coordinates - NAD 27): 10. KB Elevation above MSL: 64.63 'feet 15, Distance to Nearest Well Open to Same Pool: Surface: x- 651959 y- 5974883 Zone - ASP 4 GL Elevation above MSL: 35.73 feet 508 16. Deviated wells: Kickoff Depth: 12496 feet 17. Maximum Anticipated Pressures in psig (see 20 AAC 25.035) Maximum Hole Angle: 102 degrees Downhole: 3137 Surface: 2254 - 18, Casing Program: Specifications Top - Setting Depth - Bottom Cement Quantity, c.f. or sacks Hole Casinq Weiqht Grade Coupling Length MD TVD MD TVD (includinq stage data) 4-1/4" 3-1/4"x2-7/8,, 6.6#/6 5# 13Cr85/L-80 STL 1743' 12200' 8594'ss 13943' . 8780'ss Uncemented Solid / Slotted Liner 19. PRESENT WELL CONDITION SUMMARY (To be completed for Redrill and Re -Entry Operations) Total Depth MD (ft): Total Depth TVD (ft): 1 Plugs (measured): Effect. Depth MD (ft): Effect. Depth TVD (ft): Junk (measured): 1 13175 9307 None 13097 92 12533,12540 Casing Length Size Cement Volume MD TVD Conductor/Structural 80 20" 260 sx Arctic Set (Approx.) 32 - 112 32 - 112 Surface 2724 13-3/8" 3790 cu ft Arctic Set 11 31 -_7 Z!>5 31 - 2678 Intermediate 12432 9-5/8" 2760 cu ft Class 'G' 29 - 1 81" 29 - 8836 Production i— ill4N Liner 980 7" 296 ciu ft Class'G' 12195 - 13175, 8655 - 9307 Perforation Depth MD (ft): 12480 - 12678 Perforation Depth TVD (ft): 8849 - 8981 Hydraulic Fracture planned? Yes ❑ No 0 20. Attachments Property Plat ❑ BOP Sketch 0 Drilling Program 0 Time v. Depth Plot ❑ Shallow Hazard Analysis ❑ Diverter Sketch ❑ Seabed Report ❑ Drilling Fluid Program 0 20 AAC 25.050 requirements 21. Verbal Approval: Commission Representative: Date 22. 1 hereby certify that the foregoing is true and the procedure approved herein will not be deviated Contact Name Ciolkosz. Rvan R from without prior written approval. Authorized Name Mclaughlin, Sean M Contact Email Ryan. Ciolkosz@bp.com Authorized Title Engine ring Team ad - CTD Contact Phone +1 907 564 5977 Authorized Signature ( Date 2- Commission Use Only / Permit Drill %QY / Number: ( (V API: 50- 029-22187-61-00 Permit Approval Date: ^ (v]I See cover letter for other r I requirements: Conditions of approval : If box is checked, well may not be used to explore for, test, or produce coalbed methane, gas hydrates, or gas contained in shales: Other: E- 77IE- T TO 2�S0 � J Samples req'd: Yes ❑ . No 13tMud log req'd: Yes ❑ No 1 .7 H2S measures Yes IP/ No ❑ Directional svy req'd: Yes No ❑l Spacing exception req'd: Yes ❑ No V Inclination -only svy req'd: Yes ❑ No � Post initial injection MIT req'd: Yes ❑ No ❑ �� APPROVED BY / Approved by: COMMISSIONER THE COMMISSION Date:/JI L � ALI N � ! dMthE Form 10-401 Revised Thi ermit is valid for 2 t r at ( 20 AAC 25.005(g) Submit Form and Attachments in Duplicate To: Alaska Oil & Gas Conservation Commission1 From: Ryan Ciolkosz '" CTD Engineer =. by 0 r#� Date: April 25, 2019 Re: F-48 L1-01 Permit to Drill Request Approval is requested for a permit to drill a CTD sidetrack lateral from well F-48 with the Nabors CDR2 Coiled Tubing Drilling rig on or around July 11th 2019. The parent well, F-48, has no remaining value and there are no good opportunities to add new perforations to improve . well performance. Proposed plan: Drill a through tubing sidetrack with the CDR 2 coil tubing drilling rig on or around July 11th, 2019. E- line unit will mill the XN nipple, set at PosiSET plug, drift and set the whipstock to prep the well for CDR 2. CDR 2 will mill a 3.80" window through the 7" casing and drill the F-48L1 Sag lateral. CDR2 will then run slotted liner and set a billet at—12647' MD. The rig will then drill F-48 L1-01, a second lateral, and complete with a slotted liner tied back into the F-48 parent bore. CTD Drill and Complete F-4811_1 & F-48L1-01 program Pre -Rig Work: (scheduled to begin May 10`h, 2018) 1. E Mill XN nipple, Set PosiSET plug and dump bail cement, drift and set whipstock 2. V Set TWC and Tree prep Rig Work: 1. MIRU and test BOPE to 250 psi low and 3,500 psi high. (MASP 2254psi) )IT, �G• 2. Mill 3.80" window and 10' of rathole. Swap to 8.6 drilling mud 3. Drill 4-1/4" Build and lateral with GR/Resistivity to F-48L1 TD 4. Run 2-7/8" 6.4# L-80 Solid/Slotted liner to within —650' of TD 5. Set flow through billet at 12647' MD 6. Drill L1-014-1/4" build and lateral with GR/Resistivity to F-48L1-01 TD 7. Run Solid/Slotted 2-7/8" 6.4# L-80 liner to within —150' of TD 8. Freeze protect well, RDMO Post -Rig Work: 1. V: Pull BPV if set. Tree Work as necessary 2. S: Set Live GLVs. 3. T: New well flowback up to 5 days TREE= 4-1/16' CIW VM 3-L EAD = 13-5/8" FMC ACTUATOR = BAKER OKB. ELEV = 6C83 BF. ELEV = 37.13' KOP = 1800' __....___A . _..�. _• CONDUCTOR, Max 'Angle = 57" Q 4628' Datum ND = 12504' �# Datum TVD = 8806 SS D = 9-5/8" CSG, 47# L-80 HY D 563, D = 9.875" 13-3/8- CSG, 68#, NT-80 BUTT, D = 12.415" 2755' Minimum ID = 3.726" @ 12245' 4-1/2" PARKER SWN NIPPLE FSAFNOTES: —CHROME TBG & LNR'" -48 NOTE HISTORICAL PROBLEMS RETRIEVING TOOLS THRU THE TAILPIPE DEFORMITY / OBSTRUCTIONS IDENTIRED ON BHTV SURVEY 08/02/92 1737 s-5/8" HES es CEMENTER 205T 4-1/2" f-ES X NP, D = 3.813" 1 (W ; I IFT M WIRRS ST ND TVD DEV TYPE VLV LATCH PORT DATE 5 4 3 2 1 3126 6122 8144 9721 11092 2976 4772 5968 6967 7915 41 52 53 49 48 MW MMG MIuG MW MIVG DOME DMY DOME DMY SO I RK RK RK RK RK 16 0 16 0 20 03/09/08 03/09/08 03/09/08 10/21/07 03/09/08 1204V 4-tl2" HES X NP, D = 3.813" 12065'—{9-5/8" X4-1/2" S-3 PKR, D = 3.870" 12090' 4-1/2" HES X NIP.ID= 3.813" 4-1/2" TBG, 12.6#, 13CR-80 VAM TOP, 12153- .0152 bpf, D = 3.958" I F12169' 12163' — f i /WW X4-1 /2" UNIQUE OV ERSHOT 1 4 1/2' TBG S12161" RIGHT-HAND LEASE LATCH 12170- 9-5l8" X4-1/2- TNV HBBP PKR, ID = 3.875" TOP OF 7" LNR 1-4 2195---1 121 SW 9-5/8" X 7" TNV LNR HGR, D = ? 12223' 1—i4-1/2" PARKER SWS NIP. D= 3.813" 12245- 5--14-1/2- PARKER SWN NIP, D = 3.725" 4-011/2- TBG, 12.6#, NT13-CR 1225T ! 1225T �4 1/2" WLEG, ID= 3.958" 52 bpf, ID = 3.958" 12257' ELMD TT LOGGED 09/27l91 ? 9-5!$' CSG, 47#, RtT-80S NSCC, D = 8.681" 12461' FISH - STFFNER RING FROM BP (11/03/14) PERFORATION SU IA MRY Rff LOG: HLS BRCS ON 07/29/91 ANGLE AT TOP PERF: 48° aQ 12489 Note: Refer to Production OB for historical perf data SIZE SPF INTERVAL Opn/Sgz SHOT SOZ 2-718' 6 12480 - 12530 O 12/22/16 2-5/8" 6 12480 - 12510 O 03/19/92 3-318" 6 12653 - 12678 O 09/27/91 13093' 7" LNR, 26#, 13CR-80, .0383 bpf, D = 6.276' 13175- ? I--1 FISH - 6- SEALING ELEMENT FROM BP (01/25l15) DATE REV BY CONVENTS DATE REV BY CONVENTS 08/04191 N18E ORIGINAL COMPLETION 11/03/14 GTW/PJC FISH DH (BP DEBRIS) 101=7 NOES RWO 11/05/14 SVVC1 PJC FISH: STFNER RING STILL OH 11/19/07 JL.YPJC GLV CIO (11/13/07) 01/05/15 CJS/JbD SETBP(12126114) 11/21/07 RVMMJpjq DRLG DRAFT CORRECTIONS 01/28/15 JLS/JIuD PULL BRSET FISH (01/25/15) 103/18/081 K GLV GO (03109/08) 1 /161 JUJIVD ADPERFS (12/22/16) 11/14/13 IDAffJwCORI;E=4-12" TYPO DEPTH PRUDHOE BAY UNIT WELL: F 48 PERNT No: 1910860 AR No: 50-029-22187-00 SEC 2, T11 R R13E, 3362' FSL & 2863' FEL BP Exploration (Alaska) TREE= 4-1/16"CIW W6-LHEAD= 13-5W FRC ACTIjATOR = BAK�2 BF. ELEV = 37.13' KOP = 1800 F -4$, `1 & L 1-01 Max Angie = 57" Q 462i' —" CONDUCTOR. Datum ku = 12504' _#, Datum TVD = 88W SS D = ' 9-5/8" CSG, 47# L-80 HY D 563, D = 9.875" 13-318" CSG, 68#, NT-80 BLt1T, ID = 12.415" 1 1742' 1 Minimum ID = 3.726" @ 12246' 4-1/2" PARKER SWN NIPPLE 4-1/2" TBG, 12.6#, 13CR-80 VAMTOP, .0152 bpf, D = 3.958" 4-1/2" TBG STUB (10/11107) 1 12153' 1 1 12161' 1 TOPOF 7" LNR 1-- 12195' 4-112" TBG, 12.6#, NT13-CFI I—j 12257' 0152 bpf, D = 1958" 9-5/8" CSG, 47#, NT-80S NSCC, D = 8.681" j-{ 12461' 4112" x 7" Dena VW*s66 � 12496' - 7- cbsi-set - 12550' PERFORATION SUMMARY REF LOGHLS BRCS ON 0729f91 A NGLE A T TOP PERE. 48-a 12480' Note. Refer to Productm D13 for ntstorxal perf data SIZE SPF 14TERVAL Opn/Sqz SHOT SOZ 2-718- 6 O 2.518' 6 12480 - 12510 O 03/19/92 3-318' 6 �12480-12530 12653 - 12678 O 11221162 0927191 PBTD 1—I 13093' T LW 26#,13CR-80, .0383 bpf, D = 6.276" 1-1 13175' SAF, .40TES: —CHROME TBG & LNF;r " NOTE: HISTORICAL PROBLEMS RETRIEVING TOOLS THRU THE TAILPIPE DEFORMITY / OBSTRUCTIONS IDENTIFIED ON BHTV SURVEY 08/02192 1732- 9-518" HES ES (� NTER 205T 4-1/2" HES X W. ID = 3.813" GAS LIFT MANDW S ST MD TVD DEV TYPE VLV LATCH PORT DATE 5 3126 2976 41 MVG DONE RK 16 03/09108 4 6122 4772 52 MWG DMY RK 0 03/0901 3 8144 5968 53 MMG DONE RK 16 03/09/08 2 9721 6967 49 MNG DMY RK 0 10/21/07 1 11092 7915 48 MVG SO RK 20 03/09/08 12045' 4-1/2" HEM X NP, D = 3.813" 12065- j-{9-5/8" X4-1/2" S-3 PKR, D = 3.870" 12090' 1- i 4-1/2" HES X MP. ID = 3.813" 12163'-�9-5/8' X4 12' UIVOl1E OV ER5F10T 12169' R G-HT-HAND RELEASE LATCH 12170' 9-518" X4-112" TNV HBBP F'fffi, D = 3.875" 12200' 3.7" Oepbyment Sleeve 12195' 9-5/8" X 7" TNV LA(2 HGR, D = ? 12223' 4-1/2" PARKER SV%G NIP, D = 3.813" 12245' 1-14-1/2" PARKER SWN W. 'A I ; "; 10 3.80" 12257' 12257' �M] TT LOGGED Q9127/91 12550'-{3-1/4" 13CF�80 TGtI 12830' 2-718" L-80 STL L1-01 2-7/8" Sbtted 12,830-13943 Liner L-80 STL a-va-a�lwte �39as�-'taos3 ................................................................................... L1-01 L1 2-718' L-80 STL J-j 13OW ? FISH - SWFNER R14G FROM GP (11 /03114 ) FISH - 6" SEA LING EiE3WE3JT FROM �P {0112511 S) DATE I REV BY COMVENTS DATE REV BY CONVENTS 08104t9ll N18E ORIGINAL COMPLETION 11/03/14 GTW/PJC FISH DH (BP DEBRIS) 10/22107 WE5 RNO 11/05/14 3wcj Pic FrH: STIFNER RNG STILL DH 11/19/07 JLXPJC GLV GO (11113/07) 01/05115 CJS/JND SET BP (12/26/14) 11/21/07 RVAJP DRLG DRAFT CORRECi10NS 01/28115 JLS/JND PULL BP/SET FISH (01125/15) 03/18/08 K GLV CYO (03/09/08) 12/27/16 JUJND ADP FS (12122116) 11/14/13 DVVR/J CORREC,'TED4-12" TYPO DEPTH PRIDHOE BAY LW WELL: F-48 PERWIT NO: 1910860 AR ND: 50-029-22187-00 SEC 2, T11 N, R13F, 3362' FSL & 2863 FEL BP Exploration (Alaska) 082 0 CL Q 4) � o Q J 00 J 0 ■� 0 LL L LL V o Z � co J aU- a a m ULa } j \ j \ \ \ ;J _\ 00. \� 7)E> zi Of f ca / § fc Lu ) } \��k SDc °c0zm �■zw0 \ E f I \ % / i k E ƒ z ®� ® z4 \\\ \ \M \ ' ~� w c \ j ! ] J t )mo 04 !\3 a } /k o � _ /M° \j\ 7 /� \e � { a A @Fo ) $£o ; § {{CD ! 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Vi Q J V y LL LL O O (n m r N m m o v (D O m O O v) o O N v1 V N c0 o n v n v m o Q p O am+ n 0 0 O m m m O O M O N O N O .- v1 m O m O O m m O m O m O m O m O m O m LL U J> W v1 Cl) M v1 M m oo Y ~ v m O C E O LL aN- J om 'Tga z LL LL LL LL LL Oo M o0 ocli 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a m o (n v1 (n Lo T 0 M 0 M 0 O 0 O 0 O 0 m o O M m o 0 O O 0 6 0 O 0 M 0 O o O OLo o (`1 ... 4. v (o m it (r1 m m cD o n 0 m 0 m 0 m o O n O o 0 N 0 M o v m v_ o IQ 0 0 n T O N cli N 0 N O N N �-- N .- N N M r M M M M M M M M M C H LL .�.. Co 7 Y N M v m m V O Ccl T m C N rn v cli OD 0 0 � 0 m 0 a) 0 m me m' o z <n N Clc0 0 CO � Z) m U Q o rn ro n 0 Ln rn v C O U u W fn y a O a 0 0 0 0 0 J M ¢ aD U N N N Nco N LL p o m O m m a ao r- ao )O ao eo rn co a) o v M r` n c� 0 u .0 c O O C W O) c a) v O) co .- Fn W V V V w d d ` co co � O W u U d u O d d O O CO m aO In N O) � r` W O m O N O w w d U H N Cl)of c0 U W m K d a L c co v v v D '�' W a co OD OD CDC) OOO > j F 2 U) D CDa) Z O) O) O) rn Lci L6 cO 0 n C') m n ro n cc m vo C co IT Cl) co N T T T W 7 O �0 10 N r0 a) O N r� co O � W m O N cp n N C, Z 7 W W n O) U0 co O) rl rl lO O ao W ao y pl-� OD r"a rl co ao rl ao rn ao rn O w r' v) N o o 0 o0 o V) n N N 0 N OD N of rn N a m g n n vNi M N Q V p O Do m O) O) cD ODG 0I 00 0 o � � a � n ► � ro Q LL o c _. , J .r coQ co O co J z a LL LL a LL O n O O O O O O O O O O >. (D c7 O) O O O O O O 'n O) C e} fry T n D N N OD a) N N O O D N C m 'a 7 to F a d .. � rn a) o _ _ O :m,,. c O v a` co 3 3 o a North America - ALASKA - BP PBU F-48 PLAN F-48U-01 F-48L1-01 WP04 Anticollision Summary Report 19 April, 2019 Company: North America - ALASKA - BP Project: PBU Reference Site: F Site Error: 0.00usft Reference Well: F-48 Well Error: 0.00usft Reference Wellbore PLAN F-481-1-01 Reference Design: F-481-1-01 WP04 BP Anticollision Report Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Output errors are at Database: Offset TVD Reference: Well F-48 Mean Sea Level KB @ 64.83usft (ORIG KELLY BUSHING) True Minimum Curvature 1.00 sigma EDM R5K-Alaska PROD -ANCP1 Offset Datum Reference F-481-1-01 WP04 Filter type: NO GLOBAL FILTER: Using user defined selection & filtering criteria Interpolation Method: MD Interval 25.00usft Error Model: ISCWSA Depth Range: 12,653.00 to 14,093.00usft Scan Method: Tray. Cylinder North Results Limited by: Maximum center -center distance of 1,606.39usft Error Surface: Elliptical Conic Survey Tool Program Date 4/19/2019 From To (usft) (usft) Survey (Wellbore) Tool Name Description 50.00 12.455.79 1 : Schlumberger GCT multishot (F-48) GCT-MS Schlumberger GCT multishot 12,455.79 12.653.00 F-481_1 WP04(PLAN F-48L1) MWD MWD- Standard 12,653.00 14,093.00 F-481-1-01 WP04 (PLAN F-481-1-01) MWD MWD-Standard Summary Site Name Offset Well - Wellbore - Design F F-12 - F-12A- F-12A F-30 - F-30 - F-30 F-30 - F-30A- F-30A F-36 - F-36 - F-36 F-36 - F-361_1 - F-361_1 F-36 - F-361_2 - F-361_2 F-36 - F-361_3 - F-361_3 F-37 - F-37A - F-37A F-37 - F-37ALl - F-37ALl F-37 - F-37APB1 - F-37APB1 F-37 - F-37APB2 - F-37APB2 F-39 - F-39 - F-39 F-39 - F-391_1 - F-391_1 F-39 - F-391-1-01XX - F-39L1-01 F-48 - F-48 - F-48 F-48 - PLAN F-481_1 - F-48L1 WP04 R R-34 - R-34 - R-34 R-42 - R-42 - R-42 T T-01 - T-01 - T-01 UAT TEST SITE ONLY TEST WELL X_WP - TEST WELLA- TEST WELL TEST WELL X_WP - TEST WELL AP131 - TEST W TEST WELL X_WP - TEST WELL APB2 - TEST W Reference Offset Centre to No -Go Allowable Measured Measured Centre Distance Deviation Warning Depth Depth Distance (usft) from Plan (usft) (usft) (usft) (usft) Out of range Out of range Out of range Out of range Out of range Out of range Out of range 12,728.00 13,300.00 1,072.09 351.75 732.75 Pass - Major Risk 12,728.00 13,300.00 1,072.09 351.75 732.75 Pass - Major Risk 12,728.00 13,300.00 1,072.09 351.75 732.75 Pass - Major Risk 12,728.00 13,300.00 1,072.09 351.75 732.75 Pass - Major Risk 14,093.00 13,275.00 508.19 419.86 134.33 Pass - Major Risk 14,093.00 13,275.00 508.19 419.86 134.33 Pass - Major Risk Out of range 12,762.77 12,875.00 221.23 12.30 221.23 Pass - NOERRORS 12,674.67 12,675.00 2.71 0.02 2.71 Pass - NOERRORS 13,378.00 14,075.00 1,417.75 384.22 1,034.82 Pass - Major Risk 12,878.00 16,500.00 928.57 307.23 622.72 Pass - Major Risk 13,737.75 9,575.00 1,269.85 705.63 643.84 Pass - Major Risk 12,728.00 13,325.00 1,074.42 39909 686.45 Pass- Major Risk 12,728.00 13,325.00 1,074.42 399.09 686.45 Pass - Major Risk 12,728.00 13,325.00 1,074.42 399.09 686A5 Pass - Major Risk 4/19/2019 11:49:16AM Page 2 of COMPASS 5000.1 Build 81D by Company: North America - ALASKA - BP Project: PBU Reference Site: F Site Error: O.00usft Reference Well: F-48 Well Error: O.00usft Reference Wellbore PLAN F-481-1-01 Reference Design: F-481-1-01 WP04 BP Anticollision Report Local Co-ordinate Reference: ND Reference: MD Reference: North Reference: Survey Calculation Method: Output errors are at Database: Offset ND Reference: Well F-48 Mean Sea Level KB @ 64.83usft (ORIG KELLY BUSHING) True Minimum Curvature 1.00 sigma EDM R5K - Alaska PROD - ANCP1 Offset Datum eference Depths are relative to KB @ 64.83usft (ORIG KELLY Coordinates are relative to: F-48 ffset Depths are relative to Offset Datum Coordinate System is Alaska NAD27 State Plane Zones, NAD27 ' OGP-Usa AK entral Meridian is 150° 0' 0.000 W ° Grid Convergence at Surface is: 1.160 1600 0-� 0 Ladder Plot 2500 5000 L E G7L5QB D 10000 Measured Depth (2500 usftfin) 12500 15000 _ , TEST WELL A,TESTWELLAVO F-36,F-361-2,F-36L2VO $ R-34, R-34, R-34 V1 TEST WELL APB2,TEST WELL APB2 VO -ram F-36, F-361-3, F-361-3 VO 0 92 F-30, F-30, F-30 V1 TEST WELL APB1,TEST WELL APB1 VO F-36, F-361-1, F-361-1 VO $ F-30, F-30A, F-30A VO 11 V4 F-48, F-48, F-48 V1 R-44, R-44, R-44 VO -1 AV3 $ F-48,PLAN F-48L1,F-48L1WP04VO $ F- 14, F-1 4, F-1 4 V1 -11 B V2 F-37, F-37, F-37 V1 $ F-13, F-13C, F-13C VO 1 V1 - F-37,F-37AL1,F-37AL1 VO $ F-13,F-13BPB1,F-13BPB1 VO -1 2A VO -ate F-37, F-37A, F-37A VO F-13, F-13, F-13 V1 3 V 1- F-37, F-37APB1, F-37APB1 VO F-13, F-13A, F-13A VO C, F-34C WP02 VO $ F-37, F-37APB2, F-37APB2 VO $ F-13, F-13B, F-138 VO 4/19/2019 11:49:16AM Page 3 of 3 COMPASS 5000.1 Build 81 D O y o m w J � � O ¢Y a S S S S S S O Q Z3 < �Kmv LL N m 0 N o ., � remN V ��amOmmmm I W c�u�con� Zq Lmn,-i !� jZ W J O 1 fAo<vi u'i sD{o O' o J iii mOV'� m � O m N m o 0 Z J J m a- v IL au:aLL o ~ Ti$aec Z tom �o 3 L) o 3 a u 3 �m"NVNNN m o m 0 N rn o o rn m m �<000c6000 _ _ _ _ _V C, m m CclR (ai/gsn OS) gldoa jzoilnA aniZ ( 2 LO CD @ g \ \ @ @ 0 / g o ED CD § = p 2 \ E g«n ! f :§ ;gmt� : ee{.{ !!! 2 ©7fli / )!b E 0 § on \ f / f § � � zz2lZiii! ; >Ek!!!!!!!!I 2 � � « I ,a=2C fog OP IL !� North America - ALASKA - BP PBU F F-48 PLAN F-481-1-01 F-481-1-01 WP04 Plus 500ft MD AOGCC Offset Well Report 19 April, 2019 by Company: North America - ALASKA - BP Project PBU Reference Site: F Site Error: 0.00usft Reference Well: F-48 Well Error: 0 00usft Reference Wellbore PLAN F-48L1-01 Reference Design: F-481-1-01 WP04 Plus 500ft MD BP Anticollision Repoli Local Co-ordinate Reference: TVD Reference: MD Reference: North Reference: Survey Calculation Method: Output errors are at Database: Offset TVD Reference: Well F-48 Mean Sea Level KB @ 64.83usft (ORIG KELLY BUSHING) True Minimum Curvature 1.00 sigma EDM R5K - Alaska PROD - ANCP1 Offset Datum teference F-481-1-01 WP04 Plus 500ft MD liter type: NO GLOBAL FILTER: Using user defined selection & filtering criteria iterpolation Method: MD Interval 25.00usft Error Model: ISCWSA lepth Range: Unlimited Scan Method: Tray. Cylinder North tesults Limited by: Maximum center -center distance of 200.00usft Error Surface: Elliptical Conic Survey Tool Program Date 4/19/2019 From To (usft) (usft) Survey (Wellbore) Tool Name Description 50.00 12,455,79 1 : Schlumberger GCT multishot (F-48) GCT-MS Schlumberger GCT multishot 12,455.79 12,653.00 F-4811 WP04 (PLAN F-481-1) MWD MWD - Standard 12,653.00 14,593.00 F-48L1-01 WP04 Plus 500ft MD (PLAN F- MWD MWD - Standard Summary Reference Offset Centre to Measured Measured Centre Site Name Depth Depth Distance Offset Well - Wellbore - Design (usft) (usft) (usft) EX PR331213 F F-12 - F-12 - F-12 1,522.87 1,525.00 188.23 F-12 - F-12A - F-12A 29.12 28,79 180.74 F-13 - F-13 - F-13 1,550.80 1,550.00 67.64 F-13 - F-13A- F-13A 1,550.80 1,550.00 67.64 F-13 - F-13B - F-13B 1,558.86 1,575.00 67.63 F-13 - F-13BPB1 - F-13BPB1 1,558.86 1,575.00 67.63 F-13 - F-13C - F-13C 1,558.86 1,575.00 67.63 F-14 - F-14 - F-14 1,799.30 1,800.00 20.22 F-37 - F-37 - F-37 1,498.08 1,500.00 153.38 F-37 - F-37A - F-37A 1,507,95 1,525.00 153.45 F-37 - F-37ALl - F-37ALl 1,507.95 1,525.00 153.45 F-37 - F-37APB1 - F-37APB1 1,507.95 1,525.00 153.45 F-37 - F-37APB2 - F-37APB2 1,507.95 1,525.00 153.45 F-39 - F-39 - F-39 14,521.54 13,800.00 176.42 F-39 - F-391-1 - F-39L1 14,580.75 13,875.00 116.80 F-39 - F-391-1-01XX - F-391-1-01 29.12 28.82 35.88 F-41 - F-41 - F-41 1,499.49 1,500.00 131.07 F-41 - F-41 A- F-41 A 1,499.49 1,500.00 131.07 F-41 - F-41 P B 1- F-41 P B 1 1,499.49 1,500.00 131.07 F-48 - PLAN F-481-1-01 - F-4811-01 WP04 14,093.00 14,093.00 0.00 R T UAT TEST SITE ONLY TEST WELL X_WP - TEST WELL - TEST WELL 1,498.08 1,500.00 153.38 TEST WELL X_WP - TEST WELL A - TEST WELL A 1,507.95 1,525.00 153.45 TEST WELLX_WP - TEST WELLAPBI - TEST WELLAPBI 1,507.95 1,525.00 153.45 TEST WELL X_WP - TEST WELLAPB2 - TEST WELLAPB2 1,507.95 1,525.00 153.45 411912019 12:24:08PM Page 2 of 2 COMPASS 5000.1 Build 81D Well Bighole CDR2-AC 4 Ram BOP Schematic Date 21-Nov-17 Quick Test Sub to Otis 1.1 ft — — Top of7"Otis 0.0ft —.—.—.—.—._._._._ _--- ._._._. 4 CDR2 Rig's Drip Pan Distances from top of riser Excluding quick -test sub 4 7-1/16" 51k Flange X 7" Otis Box Top of Annular 6.0 ft Nydril 7 1/16" Top of Annular Element 6.7 ft Annular Bottom Annular 8.0 ft CL Blind/Shears 9.3 ft CL 2-3/8" Pipe/Slips 10.1 ft 81 B2 B3 B4 Choke Line Kill Line CL 2-3/8" x 3-1/2" VBRs 12.6 ft —� CL 2-3/8" Pipe/Slips 13.4 ft CL of Top Swab 16.0 ft Swab T1 oe T2 CL of Flow Cross 17.4 ft Master CL of Master 18.8 ft LDS IA OA LDS O Ground Level Test Pump Hose TRANSMITTAL LETTER CHECKLIST WELL NAME: PTD: L Development _ Service Exploratory Stratigraphic Test _ Non -Conventional FIELD: �� POOL: C Check Box for Appropriate Letter / Paragraphs to be Included in Transmittal Letter CHECK OPTIONS TEXT FOR APPROVAL LETTER MULTI The permit is for a new wellbore segment of existingwell Permit LATERAL No. — (�, API No. 50- �=c`� _ -42D- Cam? i/ (If last two digits Production should continue to be reported as a function of the original in API number are API number stated above. between 60-69 In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well Pilot Hole name ( PH) and API number (50- - - -� from records, data and logs acquired for well name on permit). The permit is approved subject to full compliance with 20 AAC 25.055. Approval to produce/inject is contingent upon issuance of a conservation Spacing Exception order approving a spacing exception. (Company Name) Operator assumes the liability of any protest to the spacing exception that may occur. All dry ditch sample sets submitted to the AOGCC must be in no greater Dry Ditch Sample than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Please note the following special condition of this permit: production or production testing of coal bed methane is not allowed for Non -Conventional (name of well) until after (Company Name) has designed and Well implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the AOGCC to obtain advance approval of such water well testing program. Regulation 20 AAC 25.071(a) authorizes the AOGCC to specify types of well logs to be run. In addition to the well logging program proposed by (Company Name) in the attached application, the following well logs are also required for this well: Well Logging Requirements Per Statute AS 31.05.030(d)(2)(B) and Regulation 20 AAC 25.071, composite curves for well logs run must be submitted to the AOGCC within 90 days after completion, suspension or abandonment of this well. Revised 2/2015 WELL PERMIT CHECKLIST Field & Pool PRUDHOE BAY, PRUDHOE OIL -640150 - - ---Well Name: PRUDHOE BAY UNIT F-48L1-0.1_ __ Program DEV_ Well bore seg Imo; PTD#: 2190690 Company BP EXPLORATION (ALASKA) INC. ___ _ Initial Class/Type DEV / PEND GeoArea 890 Unit 11650 On/Off Shore On Annular Disposal Administration 11 Permit fee attached- - NA 2 Lease number appropriate- Yes - Surface Location lies within ADL002.8280; Portion -of Well Passes Thru ADL0028277;, 3 U_nique well. name and number Yes Top -Prod Int.& TD lie within _ADL0028278. - - 4 �5 Well.locat_ed in a_defined -pool _ Yes _ _ _ - _ - . PRUDHOE BAY, PRUDHOE -OIL POOL - 64015, governed by CO 341E- Well located proper distance from drilling unit -boundary Yes - CO 341G, Rule 2; There shall be no_restrictions _as to well spacing except that no pay shall be ... 6 Well located proper distance from other wells. - Yes - - - - - - opened_ in a well closer than 50.0 feet to -the boundary of the affected area. Planned well conforms to CO _ - - 7 Sufficient acreage_ available in drilling unit- - - - - - Yes - _ 341G, Rule 2. 8 If_deviated, is_we_llbore plat_included ------ ---- Yes _ (9 Operator only affected party Yes 10 Operator has -appropriate- bond in force - - - - Yes 11 Permit can be issued _w_ithout conservation order. Yes _ A r Date pp I 12 Permit can be issued -without administrative -approval - - Yes - - - - - SFD 5/1/2019 13 -Gan permit be approved before 15-day wait_ _ _ _ _ --- --- --- -- Yes ----- - ---- I14 Well located within area and -strata authorized by Injection Order # (put_ 10# in_comments)_ (For_ NA_ - - ----------------------- 15 All welIs_wit hin_1/4_mile_area_of review identified (For service well only). - - - - - - _ - NA. - - - - - - _ - _ _ _ _ _ - - - - - - - - - - - - - 16 Pre -produced injector: duration -of pre production less than 3 months_ (For service well only) NA 17 Nonconven. gas conforms to AS31.05.030(j.1_.A),(j.2.A-D) - - - . - -- - NA_ ------------- 18 Conductor string -provided - - .. - - - - - - NA_ CTD sidetrack_ in existing production_ hole, maintain _parent_production Engineering 19 Surface casing -protects all _ known _ USDWs - - NA_ CTD sidetrack_ in existing production_ hole, maintain -parent production 20 CMT-vol _adequate -to circulate -on conductor & surf_csg - - - - NA CTD sidetrack_ in existing production_ hole, maintain -parent. production 21 CMT-vol_ adequate to tie-in long string to surf csg- - - - - - - - _ _ - _ - _ _ - NA_ - - slotted liner, -all drilling and completion in production hole . 22 CM.T-will cover -all known_productive horizons_ - - - - - - - - - NA_ - - - - - slotted liner completion, keeping_parent_production 23 Casing designs ad_equa_te for C,_T_, B &_permafr_ost - Yes 24 Adequate -tankage -or reserve pit . - - - Yes - - - - - - _ CDR 2 is_ongoing production drilling_operation _ _ _ _ 25 -If-a- re --drill, has -a 1.0-403 for abandonment been approved - NA_ Parent well will maintain production 26 Adequate wellbore separation -proposed_ - - - - - - - - - - - - - - - - - - Yes Directional- meets- BP separation criteria - - - - - - - 27 If.diverter required, does it meet_regu_lations - NA_ CTD sidetrack in existing production_ hole, maintain_parent_p_roduction - - Appr Date 28 Dril_ling fluidprogramschematic_&_ equip list adequate- - - _ Yes - - - - - - - MGR 5/2/2019 29 BOPEs,-do they meet regulation - - - - - _ Yes 4 ram, 1 annular for CTD drillin 30 BOPE_press rating appropriate; test to -(put psig in comments)- - - - - - - - - - - - - - Yes 5M BOPE,_tested to 3500_psi_- - - - - - - - - - - - - - 31 Choke -manifold complies w/API_RP-53 (May 84)_ _ - - - - - - - - - - - - - - - - - - - - Yes - - - - - - 32 Work will occur without operation shutdown_ - - -- ---- ------------------ Yes CDR 2 is ongoing production drilling_ operation_ - - - 33 Is presence_ of H2$ gas_ probable _ - - - - - - - - Yes Standard_ BP monitoring -in place- - - - - - - - - - - - - 34 -Mechanical-condition of wells within AOR verified (For service well only) _ _ - NA_ - - This well -is a producer- - - - - - - - - - - - - - - - - - - - - - - - - - - 35 Permit -can be issued w/o hydrogen sulfide measures - - - - - - - - - - - - - - - - - - - - No. - - - - - - F-Pad wells are_H2S-bearing. H2S measures are required. Geology 36 Data_p_resented on potential overpressure zones - - - Yes Expected reservoir pressure is 6.84 ppg EMW; will be drilled using_8.4 ppg mu_d & coiled_tubing- _ _ _ _ Appr Date 37 Seismic_analys_is_of shallow gas_zones_ - - - - - N_A_ _ - - - Should-higher_pore_pressures be_encountered, BP has -immediate access to nearby fluid -mixing facilities. - SFD 5/1/2019 38 Seabed condition survey -(if off_ -shore) - - - _ ------------------- - - - - - - - - - - - - - - - - - - 39 Contact name/phone for weekly_progress reports [exploratory only) - - - - - - - - - - - - - - - - NA_ - - - - - - - - - - - - - - - - - - - Geologic Engineering Public Commissioner: Date: Commissioner: Date Commissioner Date Lq