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191-030
UNSCANNED, OVERSIZED MATERIALS AVAILABLE: 030 FILE # ,/! 0 j Sccro7 nI To request any /all of the above information, please contact: Alaska Oil & Gas Conservation Commission 333 W. 7th Ave., Ste. 100 Anchorage, Alaska 99501 Voice (907) 279 -1433 Fax (907) 276 -7542 oF w�� \ I % % /'s THE STATE Alaska. Gas ��' ® f Conservation Commission GOVERNOR SEAN PARNELL 333 West Seventh Avenue Q. Anchorage, Alaska 99501 -3572 ALASI1 Main: 907.279.1 433 SCANNED MAY 2 0 201.E Fax: 907.276.7542 John McMullen Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 ` 4 Anchorage, AK 99519 -6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Y -33 Sundry Number: 313 -234 Dear Mr. McMullen: Enclosed is the approved Application for Sundry Approval relating to the above referenced well. Please note the conditions of approval set out in the enclosed form. As provided in AS 31.05.080, within 20 days after written notice of this decision, or such further time as the Commission grants for good cause shown, a person affected by it may file with the Commission an application for reconsideration. A request for reconsideration is considered timely if it is received by 4:30 PM on the 23rd day following the date of this letter, or the next working day if the 23rd day falls on a holiday or weekend. Sincerely, �` �`f�� t Cathy P oerster Chair DATED this / 7y of May, 2013. Encl. STATE OF ALASKA • . ALA OIL AND GAS CONSERVATION COMMISSION A APPLICATION FOR SUNDRY APPROVAL 'v V � � V ���' 20 AAC 25.280 AOCICC 1. Type of Request: ❑ Abandon ® Plug for Redrill d ❑ Perforate New Pool ❑ Repair Well ❑ Change Approved Program ❑ Suspend ❑ Plug Perforations ❑ Perforate ❑ Pull Tubing ❑ Time Extension ❑ Operations Shutdown ❑ Re -Enter Suspended Well ❑ Stimulate ❑ Alter Casing ❑ Other 2. Operator Name 4. Current Well Class 5. Permit To Drill Number BP Exploration (Alaska) Inc. 191 -030 e 3. Address: 0 Exploratory 0 Stratigraphic ® Development ❑ Service 6. API Numbe P.O. Box 196612, Anchorage, Alaska 99519 -6612 50.029- 22144- 00 -00' 7. If perforating: 8. Well Name and Number: What Regulation or Conservation Order governs well spacing in this pool? PBU Y -33 Will planned perforations require a Spacing Exception? ❑ Yes ® No 9. Property Designatior 10. Field / Pool(s): ADL 028287. Prudhoe Bay / Prudhoe Bay .(p 11. PRESENT WELL CONDITION SUMMARY Total Depth MD (ft): Total Depth TVD (ft): Effective Depth MD (ft): Effective Depth TVD (ft): Plugs (measured): Junk (measured): 11600' 9149' 11518' 9115' None None Casing Length Size MD TVD Burst Collapse Structural Conductor 110' 20" _ 110' _ 110' Surface 2671' 10 -3/4" 2671' 2671' 5210 2480 Intermediate 10874' 7 - 5/8" 10874' 8818' 6890 4790 Production Liner 968' 5 - 1/2" 10632' - 11600' 8692' - 9149' 7740 6280 Perforation Depth MD (ft): Perforation Depth TVD (ft): Tubing Size: Tubing Grade: Tubing MD (ft): 10882' - 11314' ' 8822' - 9028' 4-1/2", 12.6# 13Cr80 10635' Packers and SSSV Type: 7 -5/8" x 4 -1/2" TIW HBBP - Packer Packers and SSSV 10564' / 8655'® MD (ft) and TVD (ft): 12. Attachments: 13. Well Class after proposed work: ® Description Summary of Proposal ® BOP Sketch ❑ Detailed Operations Program ❑ Exploratory ❑ Stratigraphic ® Development P Service 14. Estimated Date for 15. Well Status after proposed work: Commencing Operation: June 15, 2013 ❑ Oil ❑ WINJ ❑ WDSPL ❑ Plugged 16. Verbal Approval: Date ❑ Gas ❑ GINJ ❑ GSTOR ❑ Abandoned Commission Representative: ❑ WAG ❑ SPLUG ® Suspended 17. I hereby certify that the foregoin is ue and correct to the best of my knowledge. Contact: Matt Ross, 564 -5782 n, Printed Name: Joh ' AeAr Title: Engineering Team Leader Ema Rossmo @bp.com Signatur Phone: 564 -4711 Date: d Commission Use Only Conditi• , approval: Notify Commission so that a representative may witness ' /h n n ✓ / Sundry Number: ( 1, ❑ Plug Integrity (BOP Test ❑ Mechanical Integrity Test ❑ Location Clearance Other: eD 2 r.5 t7t0 35CGp r1 l f�w naf� phi p l�icll- v,rr -) f app-vvcc/ pe ,2,0 4A-C, 2S. // (' Spacing Exception Required? ❑ Yes ( 1 No Subsequent Form Required: lc -41 �B��AS MAY 1 7 �� - � j � 1 // � l APPROVED BY Approved By: (L , ! ✓ -- COMMISSIONER THE COMMISSION Date: 3 - / 7 - / ....� Form 10-403 Revised 1 /2012 Appro0 4li fa nIsNidArh2 months from the date of approval Duplicate ` i To: Alaska Oil & Gas Conservation Commission From: Matthew Ross bp CTD Engineer Date: May 9, 2013 Re: Y -33 Sundry Approval Sundry approval is requested to plug the Y -33 perforations as part of drilling the Y -33A coiled tubing sidetrack. History of Y -33. Well Y -33 is a Z4 producer originally completed in 1991. A Braden Head leak was found in July of 2003 and repaired in April, 2004. Reason for sidetrack. Y -33 is no longer a competitive well due to 99% water cut from Y- 06Ai. The proposed sidetrack will access a target in Zone 4b. Proposed plan for Y -33A is to drill a through tubing sidetrack with a Coiled Tubing Drilling rig on or around August 1 2013 with Nordic 1. The existing perforations will be isolated by the primary liner cement job. The sidetrack, Y -33A, will exit the existing 5 -1/2" liner and kick off in Zone 4. This sidetrack will be completed with a 3 -1/2" x 2 -7/8" 13Cr liner in the production interval and cemented in place. This Sundry covers plugging the existing F -01A perforations via the F -01 B primary liner cement job and a liner top packer if the liner lap pressure test fails (alternate plug placement per 20 AAC 25.112(i)). The following describes the work planned and is submitted as an attachment to Form 10 -403. A schematic diagram of the proposed sidetrack is attached for reference. j 6 v` / C C7` wt l/ '#7r" 74 Lt Q /p , fig-r4 r, a Gr Or T de ep. , . a ©,'l / P X n 014 or' / 1 eC✓'? ?,oa�, 14 / vc .=. ;,,r p ' c 7 � p� �'fr Wt �� Gv1 ,Gi � 74c en o { lam c c/ q 64 50 /oP1 i fy 71, G v /'rear t.-e ewe- fo'°4' .7° I 4 044 # t o r d re covet vet 4-0A1 fb t 1'oi, c" roc fool X)43 • • Require d Permit? 10- Pre -Rig Work (scheduled to begin June 15 2013) 403 PTD 1. S Drift for 4 -1/2" x 5 -1/2" whipstock to 11,200'. No No Mill XN at 10,616' to 3.80 ". Set Posi -set plug at 11,230' & dump bail 5' of cement on top of plug. Set 4 -1/2" x 5 -1/2" 2. E whipstock at 11,145'. No No Cement whipstock in place by pumping 22 bbls of 15.8 ppg class G cement (attempt to down squeeze 10 bbls). 3. C Cement volume: No No i. Posi -set to TOWS: 2 bbls ii. Squeeze: 5 bbls iii. Excess: 15 bbls 4. F MIT -T to 2,400psi. No No 5. V Torque tree & PT Tree /barriers - MV, SV, WV. No No Bleed wellhead, production, flow, and GL lines down to 6. 0 zero and blind flange. No No 7. 0 Remove wellhouse and level pad 8. 0 If MIT -T fails, set TWC & leave for the rig. No No (' Required Permit? Rig Work (scheduled to begin August 1 2013) 10-403 PTD 1. MIRU and test BOPE 250 psi low and 3,500 psi high. Yes No 2. Mill 3.80" window at 11,145' and 10' of rathole. No Yes Drill build section: 4.5" OH, 855' (34° deg /100 planned) with 3. resistivity. No Yes Run test application of open hole expandable liner, post 4. expansion 4.35" MTX -60 at opportunistic depth. No Yes p Tn Drill lateral section: 4.5" OH, 1636' (12° deg /100 planned) with 5. resistivity. No Yes 6. Run 3 -1/2" x 2 -7/8" 13Cr liner leaving TOL at 10,620' MD. No Yes Pump primary cement leaving TOC at 10,620' MD, 42 bbls of 7. 15.8 ppg liner cmt planned. Yes* Yes 8. Perform liner cleanout with mill, motor and MCNUGR /CCL log. No Yes 9. Test liner lap to 2400 psi. No Yes 10. Freeze protect well to 2500' MD No Yes 11. Set BPV, RDMO No Yes * Approved alternate plug placement per 20 AAC 25.112(i) Post -Rig Work: 1. Re- install wellhouse, flowline and pull BPV. 2. Set liner top packer if needed with slickline & test to 2,400psi. 3. Set generic GLV's, SBHPS, ASRC flow back, SIT. Matthew Ross CTD Engineer 564 -5782 CC: Well File Joe Lastufka TREE • TREE= • 4" OW • .VVELLFEAD= FMC • .__ ACTUATOR = OT15 Y-33 SAFETY NOTES: CHROME TBG & LNR. NTWL KB. ELE 8&18 BF. ELEV = 51.78' KOP= 3200' I 2053' h4 -112" OTIS SSSV NR? D = 3.813" I Max Angle = 66° c 1 1400' Datum MD= 11020' Datum TVD = 8800' SS I 10 -3/4" CSG, 45.5#, NT-80, D = 9.953" H 2671' GAS LIFT MANDFELS ST MD TVD DEV , VLV LATCH FORT DATE Minimum ID = 3.725" @ 10616' 6 2992 2992 5 CAM DMY BK 0 03127/13 5 5622 5093 46 CAM DMY BIC 0 03127/13 4 -1/2" PARKER SWN NIPPLE 4 7560 6485 43 CAM DMY BK 0 03127/13 3 8889 7480 39 GAM DMY 81< 0 03/27/13 2 9767 8157 46 CAM DMY BK 0 03/31/91 1 10533 8638 57 CAM DMY BK 0 03/27/13 1 1 ( 10559' I— I4 -1/2' PARKER SW'S NP, D= 3.813' I 10563' H RIGI-if HAND RELEASE LATCH 10564' II 7 -518" x 4-1/2" TNV HBBRR PKR, D = 4.0" I 10696' I— I4 -1/2" PARKER SINS MP, D = 3.813" I 1 I 10616' H4 -1/2" PARKER SWN NP, D = 3.725" 14-1/2" TBG, 12.6#, 13-CR 0152 bpf, D = 3.958" H 10629' — / \ 10635" H5-1/2" TNV DUMMY SEAL Asst j I TOP OF 5-1/2" LNR H war 1 ( I 10614' H aND Tr L OGG® 03/08/91 M ' roG 1011 17 -5/8" CSG, 29.7 #, NT95HS, NSCC, D = 6.875' H 10874' I • /0 8 PERFORATION SUMMARY � ��v f LOG: BHCA - 03/20/91 1 ANGLE AT TOP PERF: 60° ? 10882' L 0 1-1"" Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn/Sqz SHOT SQZ y r 0 96 3-3/8" 4 10875 - 10887 S 03/31/91 08/28/94 ■ w rY1-4)U W 3-3/8" 6 10882 - 10927 0 08/28/94 3-3/8" 4 10922 - 10924' S 03/31/91 08/28/94 ! 6 lf 0 3-3/8" 4 11088 - 11150' 0 04/12/91 3-3/8" 4 11160 - 11224' 0 04112/91 3-3/8" 4 11234 - 11288' 0 04/12/91 1 3-3/8" 4 11298 - 11314' 0 04/12/91 1 PBTD 11518' I ••••••1 1 5-1/2" LM , 17#, 13-CR, -0232 bpf, D = 4.892" H 11600' VA•Att DATE REV BY COMMENTS DATE REV BY OONMENTS PRUDHOE BAY UNIT 03/31/91 TICS ORIGINAL COMPLETION 04/05/13 SW/JMJ PILLED PX PLUG (03/24 /13) WELL: Y -33 06/25/01 MVP CORRECTIONS TTONS 04/05/13 JMJMD GLV C/O (03/27 /13) PERN/T No: 1910300 07/25/03 ATDrKK GLV CORRECTIONS AR No: 50- 029 - 22144-00 03/20/10 JLW/SV CSG CORRECTION SEC 34, T11 N, R13E, 1311' FP& & 260' FWL 03/20 /10 SV GLV TV D CORRECTIONS 11/13/11 C DJ( PJC SET RC FL.UG (11/08/11) 8P Exploration (Alaska) 0 • TREE= 4' CM ' WELLHEAD = FMC ACTUATOR= OnS PROPOSED Y -33A SAFETY NOTES: CHROME TBG & LNR. NT_AL KB. ELE 88.18' BF. ELEV = 51.78' KOP = 3200' Max Angle = _101° @11409' 2063' _44 -1/2" OTIS SSSV NP, D= 3.813" 1 Datum1 D= • li■ D _ atum1VD= _ 8800'SS 10 -3/4' 80 NT 5# 45 CSG, ., -, 13= 9.953' H1 —__ I L 2671' .._ _- - - - -__ GAS LFT MANDRELS ST MD IVD DEV TYPE VLV LATCH PORT DATE Minimum ID = 2.377" @ 11,100' 6 2992 2992 5 CAM DMY BK 0 0327/13 5 5622 5093 46 CAM DMY 1 BK 0 03/27/13 MY 4 7560 6485 43 CAM D BK 0 03/27/13 3 8889 7480 39 CAM DMY BK 0 03/27/13 2 9767 8157 46 CAM DMY BK 0 03/31/91 1 10533 8638 57 CAM DMY BK 0 0327/13 I I 10559' H4 -1/2" PARKER SWS t1P, D= 3.813" 10563' 1 — HAND RELEASE LATCH ® Z f----' - 10664' 1 _17 - 5/8' x 4 -1/2' TIW HBBP-R PKR, D= 4.0' I r--- -I 10596' 1_4 -1 / 2 ' PARK132 SWS NP, D = 1813" I I 10616' I 4-1/2" PARKER SWN NP MILLED TO 180' (XX/XX/XX) 7. ',� 10620' u3.70 "U R.OYMBII'SLEEVE,13 =3.00" I 14 -1/2' TBG, 12.6#. 13 -CR .0152 bpf, D = 3.958" 1-{ 10629' i I - L 10635' H5 -1/2" 71W DUMMY SEAL ASSY I (TOP OF 5-1/2' LNR H 10632' ■ 10614' H El-MO TT LOGGED 03/06/91 1 7 -5/8' CSG, 29.7#, NT95HS, NSCC, 13= 6.875" — 10874' • 11100' - -13 -1/2" X 2 -7/8" XO, D = 2.377' I 13 -112" LW, 9 311, 13 -CR, STt_, .0087 bpi, D = 2.9921— 11100' 1 51/2' W - 1PSTOCK (XX/XX/XX) I— 11146' MILLOUT WINDOW (Y-33A) 11,145' - 11,156' 1 5-1/2" LNR 17 #, 13 -CR .0232 bpf, D = 4.892' H 11146' PERFORATION SUMMARY NT LOG: ON XX -XX -XX ANGLE AT TOP PIS: 0 _ ____ ' Nate: Refer to Roduction DB for historical pert data SIZE SPF NTERVAL Opn/Sqz SHOT SQZ 'STD 13,600' I • 4 • I2 -7/8" LM, 6.5#, 13 -CR, STL, D =2.441 H 13636' 1 *1 DATE REV BY COMENTS DATE REV BY COMMENTS PRUDHOE BAY UNTT 03/31/91 RPM ORIGINAL COMPLETION WELL: Y -33A 0625/01 MOP CORRECTIONS PERMT No: 04/15/13 JMD BULD PROPOSET? API No: 50- 029. 22144 -' SEC 34, T11 N, R13E, 1311' RC & 260' FWL BP Exploration (Alaska) NORDIC - CALISTA RIG 1 CHOKE / REEL /CIRCULATION MANIFOLD DIAGRAM e - V12 lb• �— W . V14 II IIIIL 7- 1/16" 5000 psi BOP's ID = 7.06" �.. INIIII iiii _.. V75 VII 17 1(16° 5000 Pei, 12X Transducer Q -�6 111111 7 ORB • S" 1 V 2 I V1 V 16 ' GASS Note: typical BOP Y • � arrangement for 2-3/8" I coiled tubing drilling ' �� I 11/18" 5000 Psi. RX�B tt V17 HCR IC � �/ IK OK To Poor Boy Gas Buster .. _� V18 V19 I • . 12 1/16 "5000 Pai, RX-2/ i sim p ir i • I 3.00" 5000 Pai HCR I �,�,. , f4 Bpi �•� 2- 1 /18 "5V CHECK VALVE Manual Choke TIT! .....4. •— _ 71/16 Cameron FOV Oa f 8 Valve x 6000 pal I e M EOH /Diesel , , , , , 1/ Line CoFIeg Hose . =. lid Turn r .. 10WOG To Production Tree or Cross Over • A T - re.- a transducer CoFloo Hose N11 " 4111 CV12 To Coiled Tubing Bleed OH Inner Reel Valve s'- � 44 - - Ai z, { { N13 Cement Line In • 1 1 9 1 Ground Level Tie -in CV10 _l CV3 CV2 .� T Stand Pipe ...e,.^ ------ Manual Choke __ .-"^ - - Pressure Transducers N9 41 MOM I lI CV17 0 A + .1.1. CV1 ( ( � MI ■ CV8 (I �+a Tiger Tank Mud Pump 2 a -- - In From V O - Baker MP 1 & MP 2 =ME l" - Choke • • CV14 to Pits 1 Rig Floor ir Mud Pump #1 " CV16 Reverse Ci -■ 1 Cir CT while 00H . sliM • • ,11.9 To Manifold CV15 1- Jun -2010 41 Ravarsa Cimtrlatinn line / M while rNtx CoFIes Hose • • Page 1 of i Subject: FW: INTENT PLUG for RE -DRILL WELLS: Corrected From: Davies, Stephen F (DOA) Sent: Monday, February 08, 2010 10:52 AM To: Foerster, Catherine P (DOA); McMains, Stephen E (DOA); Schwartz, Guy L (DOA); Saltmarsh, Arthur C (DOA); Aubert, Winton G (DOA) Subject: RE: INTENT PLUG for RE -DRILL WELLS: Corrected Revised procedure with an additional step per Cathy's comment: INTENT PLUG for RE -DRILL WELLS / ( IPBRD) Type Work Code in RBDMS 1 / 1. When a Form 10 -403 is submitted requesting approval to plug a well for redrill, the initial reviewer (Art �/ or Steve D.) will check to make sure that the "Plug for Redrill" box in the upper left corner of the 403 form is checked. If the "Abandon" box is checked, we will cross that erroneous entry out and initial it on I both copies of the Form 10 -403 (AOGCC's and operator's copies). 2. On the Form 10 -403 if "Abandon" is checked in Box 15 (Well Status after proposed work), Art or Steve D. will cross that erroneous entry out and initial it on both copies of the Form 10 -403 (AOGCC's and operator's copies). Instead, we will check the "Suspended" box. Guy and Winton will serve as quality control for steps 1 and 2. 3. When Steve McMains receives the Form 10 -403 with a check in the "Plug for Redrill" box, he will enter the existing code "IBPRD" into RBDMS. This code automatically generates a comment under the History tab stating "Intent: Plug for Redrill." 4. When Steve McMains receives any Form 10 -407, he will check the History tab in RBDMS for this comment. If he sees the "Intent: Plug for Redrill" code, and cannot find any evidence that a subsequent re -drill has been COMPLETED, he will assign a status of SUSPENDED to the well bore in RBDMS, no matter what status is listed on the 10 -407. Steve will also change the status on the 10 -407 form to SUSPENDED, and will date and initial his change. If Steve does not see the "Intent: Plug for Redrill" comment or code, he will enter the status listed on the Form 10 -407 into RBDMS. 5. When the Form 10 -407 for the redrill is received, Steve M. will change the original well's status from suspended to abandoned. 6. The first week of every January and July, Steve M. and Steve D. will check the "Well by Type Work Outstanding" user query in RBDMS to ensure that all of the Plug for Redrill wells have been handled properly. At this same time, Steve M. and Steve D. wilt also review the list of suspended wells for accuracy. Thanks, Steve D. NOT OPERABLE: Producer Y -33 (PTD #19140) Secured with downhole plug • Page 1 )f 2 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [AKDCWellIntegrityCoordinator@bp.com] eiti 11 J Sent: Wednesday, November 09, 2011 7:48 AM J To: Regg, James B (DOA); Maunder, Thomas E (DOA); Schwartz, Guy L (DOA); AK, OPS GC1 OSM; AK, OP:. GC1 Field O &M TL; AK, OPS GC1 Facility OTL; AK, OPS GC1 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operate )ns Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Well Pad Y� Cc: Walker, Greg (D &C); Olson, Andrew Subject: NOT OPERABLE: Producer Y -33 (PTD #1910300) Secured with downhole plug All, Producer Y -33 (PTD #1910300) is a low rate well and a repair will not be pursued at this time. A downhole plug has been set and a CMIT -TxIA passed proving the well is secured. The well is reclassified as Not Operable and will remain shut in until repaired. Thank you, Mehreen Vazir �. (Alternate: Gerald Murphy) Well Integrity Coordinator BP Alaska Drilling & Wells Well Integrity Office: 907.659.5102 Email: AKDCWeIIIntegrityCoordinator @BP.com From: AK, D &C Well Integrity Coordinator Sent: Monday, October 31, 2011 9:46 PM To: 'Regg, James B (DOA)'; 'Maunder, Thomas E (DOA)'; 'Schwartz, Guy L (DOA)'; AK, OPS GC1 OSM; AK, OPS GC1 Field O &M TL; AK, OPS GC1 Facility OTL; AK, OPS GC1 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Well Pad YP Cc: AK, D &C Well Integrity Coordinator; King, Whitney; LeBaron, Michael 3 Subject: UNDER EVALUATION: Producer Y -33 (PTD #1910300) Sustained IA Casing Pressure Above MOASP All, Producer Y -33 (PTD #1910300) has confirmed sustained IA casing pressure due to TxIA communication. The wellhead pressures were tubing /IA/OA equal to 2040/2050/120 on 10/28/2011. The well failed a TIFL on 10/31/2011. The well has been reclassified as Under Evaluation. The well may remain online while work is conducted to attempt to restore integrity. Plan forward: 1. Slickline: Change out the orifice gas lift valve. Set a tubing tail plug. 2. Fullbore: MIT -T and CMIT -TxIA to evaluate barriers in wellbore A TIO plot and wellbore schematic have been included for reference. « File: Y -33 (PTD #1910300) TIO Plot.doc» Please call if you have any questions or concerns. 11/9/2011 NOT OPERABLE: Producer Y -33 (PTD #19140) Secured with downhole plug . Page 2 of 2 Thank you, Gerald Murphy (alt. Mehreen Vazir) Well Integrity Coordinator Office (907) 659 -5102 Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 11/9/2011 UNDER EVALUATION: Producer Y -33 (PTD0910300) Sustained IA Casing Pressurebove ... Page 1 - 3f 1 Regg, James B (DOA) From: AK, D &C Well Integrity Coordinator [ AKDCWellIntegrityCoordinator @bp.com] Sent: Monday, October 31, 2011 9:46 PM To: Regg, James B (DOA); Maunder, Thomas E (DOA); Schwartz, Guy L (DOA); AK, OPS GC1 OSM; AK, OPS GC1 Field O &M TL; AK, OPS GC1 Facility OTL; AK, OPS GC1 Wellpad Lead; AK, OPS Prod Controllers; Cismoski, Doug A; Daniel, Ryan; AK, D &C Well Services Operations Team Lead; AK, D &C Wireline Operations Team Lead; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Well Pad YP Cc: AK, D &C Well Integrity Coordinator; King, Whitney; LeBaron, Michael J Subject: UNDER EVALUATION: Producer Y -33 (PTD #1910300) Sustained IA Casing Pressure Above MOASP Attachments: Y -33 (PTD #1910300) TIO Plot.doc; Y -33 (PTD #1910300) wellbore schematic.pdf All, Producer Y -33 (PTD #1910300) has confirmed sustained IA casing pressure due to TxIA communication. The wellhead pressures were tubing /IA/OA equal to 2040/2050/120 on 10/28/2011. The well failed a TIFL on 10/31/2011. The well has been reclassified as Under Evaluation. The well may remain online while work is conducted to attempt to restore integrity. Plan forward: 1. Slickline: Change out the orifice gas lift valve. Set a tubing tail plug. 2. Fullbore: MIT -T and CMIT -TxIA to evaluate barriers in wellbore A TIO plot and wellbore schematic have been included for reference. «Y -33 (PTD #1910300) TIO Plot.doc» «Y -33 (PTD #1910300) wellbore schematic.pdf» Please call if you have any questions or concerns. SCf Thank you, tilzy n = - 7/ sops, Gerald Murphy (alt. Mehreen Vazir) S zn,7 ` of P Well Integrity Coordinator U Office (907) 659 -5102 Ile Ace_ c*— Cell (907) 752 -0755 Pager (907) 659 -5100 Ext. 1154 7 '4 " . << ��'E t �e �ictitin��« 11/4/2011 PBU Y -33 PTD #1910300 10/31/2011 TIO Pressures Plot Well: Y -33 4,000 3,000 - —�- Tbg • — f— IA 2,000 - --41 OA 00A —• 000A ▪ 0n 1,000 - -�---" - . - r • 4 --- l - - r - . 07/30/11 08/06/11 08/13/11 08/20/11 08/27/11 09/03/11 09/10/11 09/17/11 09/24111 10/01 10/08/11 10/15/11 10/22/11 • 1 TREE= 4" CM! • WELLHEAD = FMC Y ®3 3 SAFETY NOTES: CHINE TBG & LNR. ACTUATOR = OTIS KB. ELEV = 88.18' BF. ELEV = 51.78' KOP = 3200' I 2053' 144-1/2" OTIS SSSV NIP, ID = 3.813" I Max Angle = 66 @ 11400' • Datum MD = 11020' Datum ND = 8800' SS 10 -3/4" CSG, 45.5 #, NT -80, ID = 9.953" H 2671' GAS LIFT MANDRELS ST MD ND DEV TYPE VLV LATCH PORT DATE 6 2992 2992 5 CAM DOME BK 16 03/21/01 Minimum ID _ 3.725" @ 10039' S 5622 5093 46 CAM DOME BK 16 03/21/01 4 7560 6485 43 CAM DOME BK 16 03/21/01 4 -1/2" PARKER SWN NIPPLE 3 8889 7480 39 CAM DOME BK 16 03/21/01 2 9767 8157 46 CAM DMY BK 0 03/31/91 1 10533 8638 57 CAM SO BK 20 04/26/04 I 10559' I—l4 -1/2" PARKER SWS NIP, ID = 3.813 " I 10563' I—i RIGHT HAND RELEASE LATCH I I 10564' 147 -5/8" x 4 -1/2" TM/ HBBP -R PKR, ID = 4.0" I I 10596' H4 -1/2" PARKER SWS NIP, ID = 3.813" I I 10616' 144 -1/2" PARKER SWN NIP, ID = 3.725" I 4 -1/2" TBG, 12.6 #, 13 - CR, .0152 bpf, ID = 3.958" 1 0629' H 1 _ _ _�_�_ -{ 10635' H5-1/2" TIW DUMMY SEAL ASSY I TOP OF 5-1/2" LNR I-1 10632' I I 10614' H ELMD TT LOGGED 03/08/91 I 17 -5/8" CSG, 29.7 #, NT95HS, NSCC, ID = 6.875" H 10874' I PERFORATION SUMMARY REF LOG: BHCA - 03/20/91 ANGLE AT TOP PERF: 60 @ 10875' Note: Refer to Production DB for historical perf data SIZE SPF INTERVAL Opn /Sqz DATE 3 -3/8" 4 10875 - 10882' S 07/12/92 3 -3/8" 6 10882 - 10922' 0 08/28/94 3 -3/8" 4 10922 - 10924' S 07/12/92 3 -3/8" 4 11088 - 11150' 0 04/12/91 3 -3/8" 4 11160 - 11224' 0 04/12/91 3 -3/8" 4 11234 - 11288' 0 04/12/91 3 -3/8" 4 11298 - 11314' 0 04/12/91 PBTD H 11518' •'1'1'1'PPI 1 15 -1/2" LNR, 17 #, 13 - CR, .0232 bpf, ID = 4.892" H 11600' - / ,1, /�1AA- DATE REV BY COMMENTS DATE REV BY COMMENTS PRUDHOE BAY UNIT 03/31/91 RKS ORIGINAL COMPLETION WELL: Y - 33 06/25/01 RN /TP CORRECTIONS PERMIT No: ® 1910300 07/25/03 ATD /KK GLV CORRECTIONS API No: 50- 029 - 22144 -00 03/20/10 JLW /SV CSG CORRECTION SEC 34, T11 N, R13E, 1311' FNL & 260' FWL 03/20/10 SV GLV ND CORRECTIONS BP Exploration (Alaska) • • bp BP Exploration (Alaska) Inc Attn: Well Integrity Coordinator, PRB -20 Post Office Box 196612 Alaska 99519 -6612 JAN 2 4 201 December 20, 2010 is Xn a Mr. Tom Maunder AN ) ?..01 Alaska Oil and Gas Conservation Commission 333 West 7 Avenue Rte. ► "`sez,�. ;own Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPB Y Pad , 1 — 0 3 0 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 s • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top -off Report of Sundry Operations (10 -404) Date: 12 /2040 .* 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 -11 C 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 -146 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 J 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 Y - 37A 2020460 50029224030100 NA 0.8 NA 6.00 4/14/2010 ) ) bp ('1 ,~~) ," ':.1, #ö30 \q\ ~.."?3 October 21 , 2005 ~ANNED NOV 0 2 2005 HAND-DELIVERED John K. Norman, Chairman ALASKA OIL AND GAS CONSERVATION COMMISSION 333 W. 7th Avenue, Suite 100 Anchorage, AK 99501-3539 RE: SVS Testing at S-19 & Y -33, Corrective Action Plan Dear Commissioner Norman: This letter is a follow up to our September 29, 2005 response to your September 13, 2005 request regarding SVS test and production data for the S-19 and Y -33 wells. As noted in our prior letter, our review indicated that production continued on well S-19 after the failed SVS tests. As a result, an incident investigation was conducted to identify the root cause of the event and develop corrective actions to prevent its re- occu rrence. The investigation team consisted of a Prudhoe Bay Unit Area Manager, Drill-site Lead, Operations Superintendent, two PACE HSE (Health Safety Environment) representatives, and a Safety engineer. The team was assisted by two well-pad operation leads and the well integrity engineer. Background Incident Description for S-19: On February 14, 2005, routine SSV state tests were being conducted on Well Pad S by an AOGCC Inspector, and a BP WOA Lead Operator. The SSV on Well #19 failed to hold differential pressure across the valve. The grease crew was contacted and the tree was serviced. On February 15, the S-19 SSV was re-tested by a Lead Operator and again failed to hold differential pressure across the valve which constituted a failure. The AOGCC Inspector waived to be present for re-test. A work-order (35309516) was written by the Lead Operator to rebuild the SSV and the well was left on-line. Page 2 The scaffolding was built on S-19 to facilitate SSV maintenance work on February 17, 2005. On February 25 the well was taken off-line, a back pressure valve was installed and the valve in question was rebuilt along with the swab and wing valves. The well was brought back on-line February 26 and the valve was pressure tested by the grease crew to ensure that it held pressure. ) ) On March 26, 2005, S-19 SSV was retested and failed. The BP WOA Lead Operator contacted the grease crew to service the valve then the well was brought back on-line. AOGCC Inspector waived to be present for re-test. Note: the data was incorrectly entered into SVS (Safety Valve System) database as a miscellaneous test instead of a re-test. On March 31 the SSV was re-tested and passed. AOGCC Inspector waived to be present for re-test. Incident Description for Y -33: The well-head shelter on Y -33 had been removed due to rig work-over on the adjacent Y -06 well. On, February 10, 2005, routine SSV state tests were being conducted on Well Pad Y by an AOGCC Inspector, and a BP WOA Lead Operator. The SSV on Well #33 failed to close all the way and the well was shut-in. On February 13 the well-head shelter was reinstalled. Heat was applied and the grease crew serviced and tested the SSV on February 14. It appears the problem was ice in the valve. On February 17, I&E reconnected to the well head and the well was brought back on-line. SSV was retested and passed on February 22. AOGCC Inspector waived to be present for re- test. Investigation Findings The investigation team found root causes in the areas of behavior and accountability, management systems, communications, and training and procedures. . Behavior/Accountability (S-19) - The employee was concerned about the potential for freeze problems if the well were to be shut in and felt other priorities were more critical. The employee did not perceive that a minor leak presented a serious safety issue, even though it was the cause of the test failure. The relevant BPXA procedure, State Test Production Wells states" Any SSV that fails a State Test must be repaired and re-tested within 24 hours and the pad manned, or the well must be shut-in until repaired and re-tested" . Management Systems (S-19, Y-33) - Safety Valve Management System failed to identify that there was a problem with continued production following the failure of the state test. Specifically, the SVS Management system did not have the capability to identify or flag wells that are incorrectly on line after failed tests. In this case, the management system did not provide a backup, or redundant process to identify this problem and alert field management. Page 3 · Training & Procedures (Y -33) - There was inadequate guidance on the timeframe required for re-testing a well following shut-in and repair of a SSV that failed a routine test. (S-19) Additionally, the investigation revealed that additional training is required to ensure accurate data entry of state test classifications (miscellaneous, routine, or re-test). ) ) · Communication (S-19) - There was a failure to adequately communicate the status and follow up action required for this event in handover notes between the operation shifts. Corrective actions for these events include: · Coaching of individuals involved in the incident to reinforce the importance of adhering to all SVS requirements. · Reinforce expectations and accountability of all staff through slope-wide communication emphasizing the importance of following procedures and reviewing state SVS test requirements. · Enhance SVS Management reporting systems to identify SVS compliance problems such as wells with failed tests that remain on line. · Evaluate the installation of signs or tags at wells with failed tests, reinforce importance of handover with lead Operators. · Review and modify procedures, and ensure clarity and consistency. Specifically revise procedures to clarify SVS requirements during well shut-in periods and provide follow-up training. The following detailed action plan has been implemented. Expectations and Accountability Due: Nov. 1. Require all Area Managers to communicate with all Well Pad and Drill Site 30, 2005 operators to clearly reinforce company expectations regarding adherence to SVS policies and procedures Expectations and Accountability Due: Nov. 30, 2. Conduct individual coaching sessions with the Lead Operators involved in 2005 the events to ensure understanding of requirements and reinforce expectations regarding the importance of adhering to procedures. Communications Due: Dee 31, 3. Evaluate the requirement and benefit of utilizing well head signs or tags to 2005 identify wells with failed SVS tests. Page 4 ) ) Management System and Database Enhancement 4. Enhance SVS data base to 1) add definitions of state tests, 2) remove pre- population of data fields with prior test results, 3) Provide training to Area Mgrs. Management System and Database Enhancement 5. Enhance Management Report that provides daily well operation information to Area Managers and Lead Operators to ensure compliance with regulations and local policy. Modify the report to clearly identify SVS compliance issues including wells with failed tests that remain on production Policies, Procedures Training 6. Review and modify SVS Procedures to clarify requirements regarding SVS testing. Provide appropriate follow up training Due: Nov. 30, 2005 Due: Nov. 3011 2005 ( eompleted) Due: May 30 2006 Furthermore, the investigation reinforced the need and potential benefit of clarifying AOGCC policy and regulations regarding SVS requirements. As noted in your letter of Aug 8,2005 some requirements have been identified as confusing. Many of these issues were addressed in the AOGCC/AOGA joint Safety Valve System Taskforce in June 2003 which contains sensible recommendations. We share the Commission's desire to clarify these issues and anticipate active participation in the industry reviews. BPXA has taken this incident seriously and I remain committed to ensure that we conduct our field operations in a safe manner, and in compliance with all applicable regulations and orders. Finally, we appreciate the opportunity to discuss our incident investigation and corrective action plan with the commission within the next few weeks. Please do not hesitate to contact me at 564-5671, or GPB's Operations Integrity Manager, Bruce Williams at 564-4632, with any questions or concerns. Maureen Joh Vice President Greater Prudhoe Bay Enclosures MJ/j r Cc: Bruce Williams, Operations Integrity Manager, GPB Page 5 ) ') Bcc: Darren Jones, ConocoPhillips Richard Owen, ExxonMobil Kemp Copeland, GPB Field Mgr John Kurz, GPB Ops Mgr Gary Christman, Alaska Drilling & Wells Harry Engel, Drilling Engineer Sandra Halliwill, Integrity & Assurance Bradley S. McKim, Legal Rosanne M. Jacobsen, Legal Bruce J. Williams, GPB Ops Integrity Steve Rossberg, Drilling Mgr Joe Anders/Anna Dube, Well Integrity Coordinators Gilbert Wong, Operations Superintendent STATE OF ALASKA ~'-,' OIL AND GAS CONSERVATION COMMIS .4 REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown Stimulate Plugging__ Pull tubing Alter casing __ Repair well __ Perforate X Other 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 1310' SNL, 5019' WEL, SEC. 34, T11N, R13E At top of productive interval 1983'SNL, 2412' WEL, SEC. 28, T11N, R13E At effective depth 1632' SNL, 2552' WEL, SEC. 28, T11N, R13E 5. Type of Well: Development X Exploratory Stratigraphic Service __ 6. Datum elevation (DF or KB) KBE=88.18 feet 7. Unit or Property name Prudhoe Bay Unit 8. Well number Y-33(32-28-11-13) 9. Permit number/approval number 91-30 / 10. APl number 50- 029-22144 At total depth 1562' SNL, 2594' WEL, SEC. 28, T11N, R13E 12. Present well condition summary Total depth: measured true vertical 11600 feet Plugs (measured) 9149 feet Effective depth: measured 11518 feet Junk (measured) true vertical 9115 feet 11. Field/Pool Prudhoe Oil Pool Casing Length Size Cemented Measured depth True vertical depth Structural -- BKB Conductor 110 20 146 146 Surface 2635 13 1/2 2925 c.f. Coldset III&Il 2671 2671 Intermediate 10838 9 7/8 1630 c.f. Class G 10874 8818 Production -- Liner 968 6 3/4 191 c.f. Class G 10632-11600 8692-9149 Perforation depth: measured 10875;10924', 11088'-11150', 11160;11224', 11234;11288', 11298;11314' true vertical subsea8730'-8754', 8833'-8863', 8868'-8899', 8903'-8928', 8933'-8940' Tubing (size, grade, and measured depth) 4 1/2" 12.6#NT13CR-80 @10635' Packers and SSSV (type and measured depth) Packer@ 10564'and SSSV@2053' 13. Stimulation or cement squeeze summary See Attachment Intervals treated (measured) Treatment description including volumes used and final pressure Gas Cons. Oommissiot~ Nichorage 14. Prior to well operation Subsequent to operation Representative Daily Average Production or Injection Data Oil-Bbl Gas-Mcr Water-Bbl Casing Pressure 800 96 993 2510 551 5 342 2450 Tubing Pressure 292 283 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil X Gas Suspended Service Signed ( .~/.,,/,,-~,,t,l~O'/',~ % i/"¢- /~'/~-~,/',,~' Title SeniorTechnicalAssistantll Form 10-404 Rev 06/15/88 Date SUBMIT IN DOPL,'i'CATE WELL Y-33(32-28-11-13) Reperf Operation 8/28/94 The following interval were reperforated using 3 3/8" guns, 6 SPF, random orientation and 60° phasing. 10882' - 10902' MD 10902' - 10922' MD ALASKA OIL AND GAS · CONSERVATION COMMISSION December 30, 1994 TONY KNOWLE$, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 Jerry Bixby/Steve Farris Wireline/Completion Supervisors BP Exploration (Alaska), Inc P O Box 196612 Anchorage, AK 99519-6612 Re: No-Flow Verification 15 B?X PBU Wells Dear Mr. Bixby/Farris: Our inspectors witnessed no-flow tests on and recommended no-flow status for the 15 BPX PBU wells listed below. The wells were open to an atmospheric tank to determine fluid production and monitored through a gas meter to determine gas production rates. The inspectors recommended "no-flow" status for the wells listed below. Well No. PTD No. Test Date Inspector Fld Rate Gas Rate S - 29 92-099 12/08/94 Grimaldi 0 30 scf/hr P - 04 91-076 12/18/94 Foster 0 0 scf/hr P - 12 91-017 12/18/94 Foster 0 0 scf/hr P - 15 90-176 12/18/94 Foster 0 0 scf/hr P - 16 90-163 12/18/94 Foster 0 0 scf/hr X - 21 93-111 12/18/94 Foster 0 0 scf/hr X - 25 84-034 12/18/94 Foster 0 0 scf/hr R - 08 81-001 12/19/94 Foster 0 0 scf/hr R - 17 81-164 12/19/94 Foster 0 90 scf/hr U - llA 93-081 12/19/94 Foster 0 135 scf/hr U - 12 85-182 12/19/94 Foster 0 180 scf/hr U - 13 78-101 12/19/94 Foster 0 120 scf/hr Y - 02 79-066 12/19/94 Foster 0 120 scf/hr Y - 13 81-112 12/19/94 Foster 0 0 scf/hr Y - 33 91-030 12/19/94' Foster 0 200 scf/hr The above wells meet the criteria of a "no-flow" performance test and as such are considered incapable of flowing, unassisted, to the surface. Under the authority of Conservation Order 341, Rule 5, these wells are not required to have fail-safe automatic SSSVs. However, the LPSs and SSVs must be maintained in good condition and, if for any reason, the wells again become capable of unassisted flow of hydrocarbons, the SSSVs must be reinstalled and maintained in good working condition. Sincerely, Blair E. Won~ell PI Supervisor cc: Bobby Foster bew/bpl 5wls4 MEMORANDUM State of Alaska Alaska Oil and Gas Conservation ~2~ommission TO: THRU: FROM' David John~~, Chairma'h~ DATE: BlairWondzell, ~ FILE NO: P. I. Supervisor Bobby Fost~r~, SUBJECT: Petroleum Inspector December 19,20 & 21, 1994 1191LSBD.doc No Flow Test BPX - PBU - R,Y & U Pads Prudhoe Bay Field Monday, December 19, 1994: ! met with Jeff Eckstein, BPX P.E., and continued No Flow test. The wells were tested using the American 425 gas measurement meter used previously in the field. There were 5 wells to be tested, but only 2 were tested. ~,~ ~ ?~' Wells R-9, 21, and~wouid not bleed down, so only wells R-8 and 17 were tested. The crew began bleeding the wells on R pad down in the afternoon of 12-18-94. The bleed down of the Y pad wells began in the afternoon of 12-19-94. The bleed down on the X pad wells began on the after noon of 12-20-94. The gas meter was tied into tubing at the swab cap on each well and a reading was taken approximately every hour for 3 hours with the following results: WELLR-08 81-oo~ Casing pressure - 240 psig Tubing pressSre -0 psig Water Cut - 65.2% Test # 1 - 6 sd/hr. Test # 2 - 5 sd/hr. Test # 3 - 0 sd/hr WELL R-17 e~-~44, Casing pressure -435 psig Tubing pressure - 0 psig Water Cut - 75.9% Test # 1 - 120 scf/hr. Test # 2 - 90 scf/hr. Test # 3 - 90 scf/hr. WELL Y-02 --r ~ - ¢~6 Casing pressure - 290 psig Tubing pressure -0 psig Water Cut - 66.9% Test # 1 - 120 scf/hr. Test # 2 - 120 scf/hr. Test # 3 - 120 scf/hr. WELL Y - 13 9/-~ (z. Casing pressure - 200 psig Test # 1 -40 sd/hr. Test # 2 - 0 scf/hr. Page 2/2 Tubing pressure -0 psig Water Cut- 71.0% Test # 3 - 0 scf/hr. WELLY-33 et-o3~ Casing Pressure - 200 psig Tubing pressure - 0 psig Water Cut - 64.2 % Test # 1- 550 sd/hr. Test # 2 - 210 scf/hr. Test #.3 - 200 scf/hr. WELL U-11A 9 ~'-e.~' Casing pressure - 520 psig Tubing pressure - 0 psig Water Cut - 97.4% Test # 1 - 150 scf/hr. Test # 2 - 135 scf/hr. Test # 3 - 135 scf/hr. WELL U-12 Casing presssure - 520 psig Tubing pressure - 0 psig Water Cut - 69.6% Test # 1 - 540 scf/hr. Test # 2 - 190 scf/hr. Test # 3 - 180 scf/hr. WELL U-13 -,, ¢-co c Casing pressure - 250 psig Tubing pressure - 0 psig Water Cut - 60.0% Test # 1 - 120 scf/hr. Test # 2 - 180 scf/hr. Test # 3 - 120 scf/hr. All of the above listed wells met the requirements set forth by the AOGCC concerning wells with a NO FLOW status. --/¢~ ,,,,¢_~ ~c~ ¢/~.,',¢ c¢¢,-,~ ~/[~ ~ Summary: I witnessed the acceptible NO FLOW test on the above listed BPX- PBU wells. Attachment: NONE LARRY GRANT Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHORAGE AK, 99501. Date: 19 October 1994 Transmittal of Data Sent by: U.S. MAIL Dear Sir/Madam, Enclosed, please find the data as described below: WELL DESCRIPTION 1 PLS FINAL BL 1 PLS FINAL RF SEPIA 1 PLS FINAL BL 1 PL/GASLIFT FINAL BL 1 PLS FINAL RF SEPIA 1 PL/GASLIFT RF SEPIA 1 PL/GASENTRY FINAL BL 1 PL/GASENTRY RF SEPIA 1 PL/GASENTRY FINAL BL 1 PL/GASENTRY RF SEPIA Run # 1 Run # 1 Run # 1 Run # 1 Run ~ 1 Run # 1 Run # 1 Run ~ 1 Run # 1 Run # 1 ECC No. 4298.02 4844.03 5609.01 5617.09 Please sign and return to: Atlas Wireline Services 5600 B Street Suite 201 Anchorage, AK 99518 Attn. Rodney D. Paulson /~~ Or FAX~o (907) 563-7803 Received by: .w '//~~ D at ~ ~'~ ALASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Date: 9 September 1994 RE: , Transmittal of Data Sent by: ANCHORAGE EXPRS Dear Sir/Madam, Enclosed, please find the data as described below: WELL U-2 3 (32-28-11-13) ..-.. H-01 # DESCRIPTION 1 CCL/PATCH FINAL BL 1 CCL/PATCH RF SEPIA 1 PL/PROF/GLM FINAL BL 1 PL/PROF/GLM RF SEPIA 1 PL/GASLIFT FINAL BL 1 PL/GASLIFT RF SEPIA 1 GR/CCL FINAL BL 1 GR/CCL FINL.RF SEPIA 1 PL/PROFILE FINAL BL 1 PL/PROFILE RF SEPIA 1 PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA ECC No. Run # 1 4502.01 Run # 1 Run # 1 4772.03 Run # 1 Run # 1 4844.02 Run # 1 Run # 1 5157.04 Run # 1 Run # 1 5167.02 Run # 1 Run # 1 5984.03 Run # 1 Please sign and return to: Atlas Wireline Services 5S6 '~e 2~r, eet //~W~hora~/_, ~99518 ~-//Attn./. ~d~//D. Paulson // / / · Please ~g~d terumo:/ Petrot~ical Data BP Exploration (Alaska) 900 East Benson Boulevard Anchorage, Alaska 99908 ' "~'~ved by ALASKA OIL & GAS CONSERVATION COMMISSION Attn. LARRY GRANT 3001 PORCUPINE DR. ANCHORAGE AK, 99501. USA Date: 31 August 1994 RE: '~ Transmittal of Data Sent by: ANCHORAGE EXPRS Dear Sir/Madam, Enclosed, please find the data as described below: Y-29 (23-04-10-13) 1 PFC/PERF FINAL BL l PFC/PERF RF SEPIA Y-33 (32-28-11-13) . PFC/PERF FINAL BL Y-34 (23-34-11-13 PFC/PERF FINAL BL 1 PFC/PERF RF SEPIA i ~R/CCL RF SEPIA PFC/PERF RF SEPIA ECC No. Run # 1 1215.01 Run # 1 Run # 1 4772.02 Run # 1 Run # 1 4844.01 Run # 1 Run # 1 4986.02 Run # 1 Run # 1 5157.03 Run # 1 Run # 1 5167.01 Run # 1 Please sign and retur~t .-~A~i~-- / ~' \ 5~001B ~tre4't I II / ~uit~ ~01 \ il ~n~ch~r~ge, t~K A~tn~ /Rodne}t Received by~ ~~x~//~ ~9518 Paul Date. "-'"" STATE OF ALASKA "--' ~" Al_A, ~ OIL AND GAS CONSERVATION COMMISS,_ . ' ·,":,' ~ REPORT OF SUNDRY WELL OPERATIONS'' 1. Operations performed: Operation shutdown Stimulate X Plugging Perforate -~'/,, ?/ I Pulltubing Alter casing Repair well Other X ~:' ~ 6. Datum elevation (DF or KB) ~ I 2. Name of Operator BP Exploration (Alaska) Inc. 3. Address P. O. Box 196612, Anchorage, Alaska 99519-6612 4. Location of well at surface 1310'SNL, 5019' WEL, SEC. 34, T11N, R13E At top of productive interval 1983' SNL, 2412' WEL, SEC. 28, T11N, R13E At effective depth 1632' SNL, 2552' WEL, SEC. 28, T11N, R13E At total depth 1562' SNL, 2594' WEL, SEC. 28, T11N, R13E 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Length Structural -- Conductor 110 Surface 2635 Intermediate 10838 Production -- Liner 968 5. Type of Well: Development X KBE=88.18 feet Exploratory Stratigraphic 7. Unit or Property name Service Prudhoe Bay Unit 8. Well number Y-33(32-28-11-13) 9. Permit number/approval number 91-30 / 10. APl number 50- 029-22144 11. Field/Pool 11600 feet Plugs (measured) 9149 feet 11518 feet Junk (measured) 9115 feet PrudhoeOilPool Size Cemented Measured depth True vertical depth BKB 20 146 146 13 1/2 2925 c.f. Co/dset ///&// 2671 2671 9 7/8 1630 c.f. C/ass G 10874 8818 Perforation depth: 6 3/4 191 c.f. Class G 10632-11600 8692-9149 measured 10875'-10924', 11088'-11150', 11160'-11224', 11234'-11288', 11298'-11314' true vertical subsea8730'-8754', 8833'-8863', 8868'-8899', 8903'-8928', 8933'-8940' Tubing (size, grade, and measured depth) 4 1/2" 12.6# NT13CR-80 @ 10635' Packers and SSSV (type and measured depth) Packer@ 10564' and SSSV@2053' RE EIV D 13. Stimulation or cement squeeze summary See Attachment Intervals treated (measured) Treatment description including volumes used and final pressure 0 CT -- 7 1993 Alaska 0il & Gas Cons. Commission Anchorage 14. Prior to well operation Subsequent to operation Representative Daily Average Production or Injection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure 1490 1246 245 640 . 3560 ~ 2258 700 2460 Tubing Pressure 238 367 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 16. Status of well classification as: Oil X Gas .. Suspended Service 17. I hereby,certify that the fore, going is true and correct to the best of my knowledge. S~gned ~(~t,~-. [.t,'~.q Title Senior Technbal Assistant I Form 10-4d4 Rev 06/~ 5/88 / Date /D/¢~/' SUBMIT IN DUISLI~DATE 7/12/92 7/15/92 WELL Y-33(32-28-11-13) NRWO/FRAC/HCL A NRWO(SAG) was performed using the following fluids: 70 BBLS SWTR TO LOAD WELL 1.5 BBLS 16 PPG. 2 PPB BIOZAN 34 BBLS SWTR DISPLACEMENT 185 BBLS SWTR TO COOL SUMP 5 BBLS FW(SPACER) 10 BBLS CEMENT 22 BBLS FW (SPACER) 35 BBLS SWTR DISPLACEMENT 139 BBLS SWTR (LIVE REVERSE OUT) 19 BBLS DUO POLYMER (JET PASS) 49 BBLS SWTR (JET PASS) 91 BBLS SWTR(FINAL REVERSE OUT) 250 BBLS SWTR (JET PASS) WELL CLEANED OUT TO 10993" 8 BBLS LOAD FLUID BEHIND PIPE (CUMULATIVE APPROXIMATE TOTAL LOAD FLUID BEHIND PIPE IS 275 BBLS) 8 BBLS CEMENT RECOVERED(DOES NOT INCLUDE CEMENT NOT PUMPED) CEMENT 15.5 PPG CLASS "G" CMT CONTAINING, ..2% CFR-3, .35% HR-1 2,. 19 GAL/SK HALAD-344L SQZ #1 A NRWO(SAG) was performed using the following fluids: 370 BBLS PW 5 BBLS EW(PREFLUSH) 9 BBLS CEMENT 25 BBLS EW(SPACER) 30 BBLS DUO POLYMER(CONTAMINANT) 40 BBLS PW (DISPLACEMENT) 215 BBLS PW (REVERSE OUT) 92 BBLS PW (JET PASS) 100 BBLS PW (FINAL REVERSE OUT) WELL CLEANED OUT TO ! 0947" 1 BBLS LOAD FLUID BEHIND PIPE 8 BBLS CEMENT RECOVERED(DOES NOT INCLUDE CEMENT NOT PUMPED) CEMENT 15.5 PPG CLASS "G" CMT CONTAINING, ..2% CFR-3, .12% HR-1 2,. 1 5 GAL/SK HALAD-344L SQZ #2 Alaska 0il h (Sas Cons. Anchorage PAGE 2 7/22/92 9/01/92 fjh 7/15/93 WELL Y-33(32-28-11-13) Performed a Hydraulic(IVI) Fracture Treatment using the following fluids: 30 BBLS 40# GEL PREPAD TO ESTABLISH RATE 192 BBLS 40# X-LINK GEL PAD W/9.0% ESL(726 GAL) 30 DIRTY 1 PPG 13 DIRTY 2 PPG 18 DIRTY 3 PPG 21 DIRTY 4 PPG 24 DIRTY 5 PPG 27 DIRTY 6 PPG 29 DIRTY 7 PPG 30 DIRTY 8 PPG 31 DIRTY 9 PPG 183 DIRTY 10 PPG 90 20# LINEAR GEL FLUSH Performed a HCL ACID Treatment using the following fluids: FLUIDS PUMPED; 223.7 BBLS SW 1 1 BBLS 1 2%HCL/3% HF 18.6 BBLS BIOZAN RECEgVEFP 0 CT -- 7 t993 ~laska 0il & Gas Cons. Gomm'issio" Anchorage BP EXPLORATION BP Exploration (Alaska) Inc, 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 DATE: 01/03/92 T# 83153 BP CASED HOLE FINALS Enclosed is your copy of the materials listed below. If you have any questions, please contact BP Well Records at (907) 564-4004. ,/~-26 ~-5~ LEAK DET 11/07/91 #1 /~212~0"/17 GAS LIFT SURVEY 11/16/91 #1 PROD-F 11/17/91 #1 TEMP 11/14/91 #1 /-01 ~13~. LEAK DET 11/07/91 #1 ~,~A~35 ~ ~1 INJ 11/20/91 ~1 -G-11 ~/-~o LEAK DET 11/20/91 ~1 17 ~{-16~ PROD-F 11/23/91 ~1 ~17 ~l'l~ ~~IFW SURVEY 11/21/91 ~1 %V ~~08 ~-~ PROD-F 11/13/91 91 ~i3 ~-Iol LEAK DET ~~ q[-~o TEMP ~3 ~ LE~ DET ~4 q~-9~ TEMP ~~ LEAK DET -13 ~ JEWELRY LOG 5 " 5 " 11/17/91 #1 12/10/91 #1 12/14/91 #1 12/10/91 #1 12/15/91 #1 12/12/91 #1 216.00-11697.00 CAMCO 2 " 150.00- 9311.00 CAMCO 2/5" 10200.00-10378.00 CAMCO 5 " 8700.00-10119.00 CAMCO 5 " 2000.00- 7600.00 CAMCO 5 " 9400.00- 9940.00 CAMCO 5 " 11200.00-11430.00 CAMCO 5 " 9350.00- 9816.00 CAMCO 5 " 2900.00-10210.00 CAMCO 5 " 150.00-12776.00 CAMCO 2 " 9050.00- 9430.00 CAMCO 5 " 10150.00-11400.00 CAMCO 5 " 10500.00-11345.00 CAMCO 5 " 400.00-10446.00 CAMCO 2 " 8900.00- 9708.00 CAMCO 5 " 200.00-10800.00 CAMCO 2/5" 9400.00- 9780.00 CAMCO 5 " 11/17/91 #1 10150.00-11400.00 CAMCO 12/11/91 #1 13575.00-14590.00 CAMCO Information Control Well Records Adrian J. Martin RECEIVED JAN 2 2 1992 Alaska 011 & Gas Cons. Commission Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: ARCO Date:03/25/91 CHEVRON T#:82247 EXXON MOBIL PHILLIPS TEXACO STATE OF ALASKA GEOSCIENCE ARCHIVES BP OPEN HOLE FINAL Enclosed is your copy of the matedal listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. Y-33 BHCA 03/20/91 #1 10875-11568 2"/5" Atlas Y-33 CN/GR 03/20/91 # 1 8800-11540 2"/5" Atlas Y-33 DIFL/GR 03/20/91 # 1 10875-11597 2"/5" Atlas *** G EOS/ARCO/EXXON/ARCH IVES ONLY. Y-33 SS TVD 03/20/91 #1 10875-11597 Atlas 1 "/2" STATE ONLY: Magnetic Single Shot Directional Survey Date: Gyroscopic Directional Date: Inforation Control Well Records LR 2-1 J. Dietz/S. McCurry Job~: BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO, Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: ARCO CHEVRON EXXON TEXACO MOBIL PHILLIPS STATE OF ALASKA DATE: 03/21/91 T#: 82243 ARCHIVES BP FINAL DATA- PRESSURE SURVEy DATA Enclosed is your copy of the matedal listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. Y-33 02/05/91 Wellhead Location Data Information Control Well Records LR 2-1 J. Dietz/S. McCurry ALASr~,~ OIL AND GAS CONSERVATION COMMISSIO WELL COMPLETION OR RECOMPLETION REPORT AND LOG Fl. Status of Well Classification of Service Well OIL [] GAS [] SIJSPEJ'~ED [] ABANDONED [] SERVICE [] 2. Name of Operator 7. Permit Number BP Exploration 91-30 3. Address 8. APl Number P. O. Box 196612, Anchorage, Alaska 99519-6612 50- 029-22144 4. Location of well at surface ~~ g. Unit or Lease Nam~ 1310' SNL, 5019' WEL, SEC. 34, T11N, R13E i ] I. OCAT1ON~ ' i E ' ~" 10. Well Number At Top Producing Interval J ~ Y-33 (32-28-11-13) 1983'SNL, 2412'WEL, SEC. 28, TllN, R13EAt Total Depth ~I E,. ~ il. Field and Pool ~ Prudhoe Bay Field/Prudhoe Bay Pool 1562' SNL, 2594' WEL, SEC. 28, T11N, R13E 5. Elevation in feet (indicate KB, DF, etc.) 16. Lease Designation and Serial No. KBE = 88.18' I ADL 28287 12. Date Spudded 13. Date T.D. Reached 14. Date Comp., Susp. or Aband. 115. Water Depth, if offsho re 116. No. of Completions 03-01-91 03-20-91 04-14-91I N/Aeet MSL I ONE 17. Total Depth (MD.TVD) 18. Plug Back Depth (MD+TVD) 19. Directional Survey 120. Depth where SSSV set ~21. Thickness of Permafrost 11600'MD/9149'TVD 11518'MD/9115'TVD YES D~ NO []I 2053teat MD! 1986' 22. Type Electric or Other Logs Run GR/CN/A C/D IFL 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 20' Surface 110' 10-3/4' 45.5# NT-80 Surface 2671' 13-1/2" 2925 cu ft Coldset III & II 7-5/8' 29. 7# L-80 Surface 10874' 9-7/8" 1630 cu ft Class G 5-1/2' 17# NT13CR-8C 10632' 11600' 6-3/4" 191 cu ft Class G 24. Perforations open to Production (MD+TVD of Top and Bottom and 25. TUBING RECORD interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) Schlumberger 3-3/8" @ 4 spf 4-1/2" 12. 6# 10635' 10564' MD TVDss NT13CR-80 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. 10875'-10924' 8730'-8754' DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIALUSED 11088'-11150' 8833'-8863' 10-3/4"X 7-5/8" Freeze Protect annulus with 150 bbls 11160'- 11224' 8868'-8899' Dry Crude Oil 11234'-11288' 8903'-8928' 11298'-11314' 8933'-8940' 27. PRODUCTION TEST Date First Production IMethod of Operation (Flowing, gas lift, etc.) April 14, 1991 ~ Flowing Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE IGAS-OIL RATIO TEST PERIOD ~ I Flow Tubing Casing Pressure CALCULATED OIL-BBL GAS-MCF WATER-BBL DIL GRAVITY-APl (corr) Press. 24-HOUR RATE I~ 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips, and presence of oil, gas orwater. Submit core chip~ EC E ! V ED JUN 21 1991. [Naska Oil & Gas Cons. commiSS~0Ji3 ~nchorage ,~, Form 10-407 Submit in duplicate Rev. 7-i -80 CONTINUED ON REVERSE SIDE GEOLOGIC MARKERS FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. 'Sag 10874' ~818' Shublik A 10924' 8842' Zone 4 11087' 8921' .. 31. LisT'OF ATTACHMENTS ,, 32, I hereby certify that the foregoing is true and correct to the best ot my knowledge Sig~~-'x-~ ~.~._~- - Title PBU Senior Technical Assistant Date ~, ~'/~J ~'/~ / , [ INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in~situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas .Injection, Shut-in, Other-explain. Item 28: If n° cores taken, indicate "none". Form 10-407 BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: As of 0600 Hrs. Fridav, March 1, 1991 WELL: Y-33 (32-28-11-13), PRUDHOE BAY UNIT APl No. 50-029-22144 Day: O Depth at 0600 Hrs. = 24 Hour Footage = Ft. Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig.,.,#3 125391 Current Operation' Preparing to spud Summary of Last 24 Hours: Moved rig over well. Took on water. N/U riser. Mud Type Mud Weight Viscosity #/gal Sec. p V Y__EP ,Fluid Loss Solids Temp cc °F Survey Depth Angle Direction TVD N-S E-W Doa Lea Section Coordinate Coordinate °/100' Reviewed By' MJS RECEIVED JUN '~ '~ t99t ~aska 0ii & Gas uons. Anchorage BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Monday, M~qr~h 4, 1991 WELL: Y-33 (32-28-11-13) AP! No. Day: 3 Depth at 0600 Hrs. = 72 Hour Footage = 21914 Ft. 2,311 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125391 Current Operation: Drilling 9-7/8" hole. Summary of Last 72 Hours: Accepted rig at 0001 hrs, 3/1/91. Spudded well at 0945 hrs, 3/1/91. Drilled 13-1/2" hole with surveys to 2695'. Ran and cemented 10-3/4" casing. N/U and tested BOP's. Drilled out casing and performed LOT. Drilled 9-7/8" hole with motor and survrvs to 2914'. Mud Type Mud Weight Viscosity P V YP Fluid Loss Solids Gel-Water 9.5 #/gal 52 Sec. 15 1 8 18.0 cc 500% Temp 48 OF Survey Depth Angle Direction TVD 5 2,475 0.25 N30W 2,475 N-S E-W Section Coordinate Coordinate 4 6 3 Dog Leg o/100' Reviewed By: RIS. BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Tuesday. March 5, 1991 WELL: Y-33 (32-28-11-13), APl No. Day: 4_ ~. Depth at 0600 Hrs. = 4,885, Ft. 24 Hour Footage = 1,971 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125391 Current Operation: Drilling 9-7/8" hole. Summary of Last 24 Hours: Drilled 9-7/8" hole with surveys to 4885'. Mud Type Mud Weight Viscosity Ligno 9.3 #/gal 38 Sec. PV YP Fluid Loss Solids 12 10 16.0cc 400% Temp 63 OF Survey Depth Angle Direction 15 3,572 21.60 N32.6W 25 4,509 45.50 N32.6W TVD, 3,554 4,316 N-S E-W Section Coordinate (~9Qrdinate 145 127 70 677 577 355 Dog Leg °/10O' Reviewed By: RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Wednesday, March 6. 1991 WELL: Y-33 (32-28-11.13) APl No. Day: 5 Depth at 0600 Hrs. = 24 Hour Footage = 5,997 Ft. 1,112 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = ..A...laska United Rig #3 125391 Current Operation' POOH Summary of Last 24 Hours: Drilled 9-7/8" hole with surveys to 5997'. Mud Type Mud Weight LSND 9.3 #/gal Viscosity 43 Sec. J:' V ..YR Fluid Loss Solids 15 18 cc 700% Temp 80 OF Survey Depth Angle Direction 40 5,913 45.80 N32.2W TVD 5,294 N-S E-W Section Coordinate CoQr¢inate 1,683 1,426 898 Dog Leg °/~0o' Reviewed By' RIS. BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT' PRUDHOE BAY UNIT As of 0600 Hrs. Thursday, March 7, 1991 WELL: Y-33 (32-28-11-13) APl No. Day: 6 Depth at 0600 Hrs. = 24 Hour Footage = 7,010 Ft. 1,01 3 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125391 Current Operation: Drilling 9-7/8" hole. Summary of Last.. 24 Hours' Drilled 9-7/8" hole with surveys to 7010'. Mud Type Mud Weight Vi$~;osity LSND 9.3 lC/gal 40 Sec. PV YP Fluid Loss Solids 15 9 7.8 cc 600% Temp 84 OF Survey Deoth Angle Direction 48 9,961 43.10 N33.6W TVD,, 5,831 N-S E-W Section Coordinate .Coordinate 2,203 1,862 1,181 Dog Leg °/100' Reviewed By: RIS. BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: As of 0600 Hrs. Friday. March 8. 1991 WELL: Y-33 (32-28-11-13) PRUDHOE BAY UNIT APl No. Day: 6 Depth at 0600 Hrs. = 24 Hour Footage = 7,960 Ft. 948 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Riq #3 125391 Current Operation: Drilling 9-7/8" hole. Summary of Last 24 Hours: Drilled 9-7/8" hole with surveys to 7960'. Mud Type Mud Weight Viscosity LSND 9.6 #/gal 42 Sec. PV YP Fluid Loss Solids 1 9 7 cc 900% Temp 82 OF Survey Depth Angle Direction 60 7,788 42.10 N32.2W TVD 6,650 N-S E-W Section Coordinate Coordinate 2,974 2,511 1,602 Dog Leg o/100' Reviewed By: RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Monday, March 11, 1991 WELL: Y-33 (32'-28-11-13) APl No. Day: 9 Depth at 0600 Hrs. = 72 Hour Footage = 9,77O Ft. 1,810 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125391 Current Operation· Drilling 9-7/8" hole. Summary of Last 72 Hours: Drilled 9-7/8" hole with surveys to 9322'. Tested BOP's. Drilled 9-7/8" hole with surveys to 9770'. Mud Type Mud Weiqht Viscosity LSND 9.7 #/gal 38 Sec. PV YP~ Fluid Loss Solids 16 9 5.4 cc 980% Temp 102 °F Survey Depth Angle Direction 70 8,740 40.90 N29.8W 81 9,647 44.60 N26.6W N-$ E-W TVD Section Coordinate Coordinate 9,362 3,606 3,057 1,919 8,068 4,173 3,567 2,170 Dog... Leg o/100' Reviewed By' RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Tuesday. March 12.1991 - WELL: Y-33 (32-28-11-13), APl No. Day' 1 0 Depth at 0600 Hrs. = .,1..0,150 Ft. 24 Hour Footage = 380 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Riq. #3 125391 Current Operation' Drilling 9-7/8" hole. Summary of Last 24 Hours' Drilled 9-7/8" hole with surveys to 10150'. Mud Type Mud Weight Viscosity LSND 9.8 #/gal 37 Sec. P..V Yp. Fluid Loss Solids 17 9 5.4 cc 9 Temp 98 OF Survey Depth Angle Direction 86 9,990 47.80 N26.2W TVD 8,306 N-S E-W Section Coordinate Coordinate 4,420 3,787 2,282 Dog Leg o/100' Reviewed By: RIS RECEIVED JUN 2 1 i99i ~Jaska 0ii & G~s L,u~i~. ,, .... ,Anchorage BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Wednesday, Mgrch 1¢, 1991 WELL: Y-33 (32-28-11,13l APl No. Day: 1 2 Depth at 0600 Hrs. = 24 Hour Footage = !..0,384 Ft. ,234. Ft. Rig' AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Riq #3 125391 Current Operation: RIH Summary of Last 24 Hours: Drilled 9-7/8" hole with surveys to 10384'. Trip for BHA. Mud Type Mucl Weight Viscosity LSND 9.8 #/gal 37 Sec. pv. YP Fluid Loss Solids 14 7 5.4 cc 9 Temp 104 OF Survey Death Angle Direq:tign 91 10,304 54.70 N29.1W TVD 8,503 N-S E-W Secl;iq~n Coordinate Coordinate 4,665 4,002 2,400 Dog Leg o/100' Reviewed By' RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Thursd~,y. March 14, 1991 WELL: Y-33 (32-28-11-13) APl No. Day: 13 Depth at 0600 Hrs. = 24 Hour Footage = 10,384 Ft. O Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Riq #3 125391 Current Operation' Reaming open hole. Summary of Last 24 Hours' Reamed 9-7/8" hole from 8515' to 10384'. Hole packing off, tight and swabbing. Mud Type Mud Weight LSND 9.9 #/gal ...Viscosity P V YP Fl~icl Loss Soli¢$ Temo 42 Sec. 1 7 11 5.2 cc 9 105 °F Survey Depth Angle DirectiQn N-S E-W Dog. Leg TVD Section Coordinate Coordinate °/100' Reviewed By' RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: As of 0600 Hrs. Fride, y, March 15. 1991 WELL: Y-33 (32-28-11-13). PRUDHOE BAY UNIT APl No. Day: 1.4 Depth at 0600 Hrs. = 10,728 Ft. 24 Hour Footage = 344 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125391 Current Operation: Summary of Last 24 Hours: Tripped for BHA. Drilled ahead with surveys to 10728'. Mud Type Mud Weight LSND · - 10.0 #/gal Viscosity P V YP 43 Sec.- · .17 12 Fluid Loss Solids 5.0 cc 9 Temp 105 OF Survey Depth Angle Direction 92 10,408 56.20 N27W TVD 8,562 N-S E-W Section Coordinate Coordinate 4,751 4,078 2,440 Dog Leg o/100' Reviewed By' RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Monday. March 18, 1991 WELL: Y-33 (32-28-1t-13) AP! No. Day: 1 7 Depth at 0600 Hrs. = 10,884 Ft. 72 Hour Footage = .1. 56 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125391 Current Operation' Working on the Draw Works Summary of Last 72 Hours: Drilled 9-7/8" hole to 1884'. Ran and cemented 7-5/8" casing. Tested BOP. Layed down 5" drill pipe. Repaired drwa works. Mud Type Mud Weight Viscosity LSND 9.5 #/gal 38 Sec. P__V YP Fluid Loss Solids 10 8 6.2 cc 600% Temp oF Survey Death Angle DirectiQn TVD 97 10,809 59.60 N20.6W 8,777 N-S E-W Section Coordinate Coorclin~te 5,087 4,388 2,575 Dog Leg o/100' Reviewed By' RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Tuesday. March 19. 1991 WELL: Y-33 (32-28-11-13). APl No. 50-029-22144 Day: 1 8 Depth at 0600 Hrs. = 10,872 Ft. 24 Hour Footage = Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125391 Current Opera. tion: Building Mud. Summary of Last 24 Hours: Completed repairs to draw works. RIH to Float Collar. Pressure tested casing. Drilled out cement and shoe and displaced well to XCD Polymer mud. Mud Type XCD Polymer Mud Weight Viscosity P V 8.9 #/gal 44 Sec. 1 0 11 Fluid Loss Solids Temp, 6.5 cc 430% °F Survey Depth Angle Direction N-$ ErW Dog Leg TVD Section Coordinate Coordinate °/100' Reviewed By: RIS,. BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHQE BAY UNIT As of 0600 Hrs. W~dnesday. March 20. 1991 WELL: Y-33 (32-28-11-13~ APl No. ,50-Q29-22144 , , Day: 1_~ Depth at 0600 Hrs. = 11.600 Ft. 24 Hour Footage = 728 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Ria #3 1,25391 Current OperatiQn: POH to log. Summary_ of Last 24 Hours: Drilled to 11600'. POH to log. Mud Tvoe XCD Polymer Mud Weight 8.9 #/gal Viscosity 42 Sec. P V, YP..EL~L~LL.~,~A Solids '['em0 12 16 6.5 cc 4% 100 °F Anale TVD N-S E-W Dog Leg Section Coordinate Coordinate °/100' Reviewed By: PC BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: As of 0600 Hrs. Thursday. March 21, 1991 WELL: Y-33 (32-28-11-13) APl No. 50-029-22144 Day: 20.. Depth at 0600 Hrs. = ..11,600. Ft. 24 Hour Footage = O Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 125391 Current .Operation: Run 5-1/2" casing. Summary of Last 24 Hours' Ran open hole logs. CBU. Rig up and run 5-1/2" casing. Mud 'T_vpe Mud Weight Viscosity New Drill 9 Cf/gal 41 Sec. PV YP Fluid Los,s Solids 9 10 6.8 cc 4% Temp 100 °F Survey Depth Angle Direction T.VD N-S E-W Section Coordinate Coordinate Dog Leg 01100' Reviewed By: MJS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT' As of 0600 Hrs. Fri¢c,y, Ma, r(;:h.22. 1991 WELL: Y-33 (32-28-11-13) PRUDHOE BAY UNIT AP! No. 50-029-221 44 Day' ..21. ~' Depth at 0600 Hrs. = 11,600 Ft. 24 Hour Footage = Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Riq. #3 125391 Current Operation: RIH with 7-5/8" casing scraper. - Summary of Last 24 Hours' Ran and cemented 5-1/2" liner. Mud Type Mucl Weight Viscosity New Drill 9.0 #/gal 42 Sec. p v. YP. Fluid Loss Solids Temp, 9 9 6.8 cc 400% 88 °F Survey Depth Angle ...... N-S E-W Dog Leg Directign TVD Section Coordinate Coordinate °/100'. Reviewed By: RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: pRUDHOE BAY UNIT As of 0600 Hrs. Monday. March 25. 1991 WELL: Y-33 (32-21~-11-13~ AP! No. Day: 24 Rig' 50-029-22144 Alaska United Rig #3 Depth at 0600 Hrs. = 11.600 Ft. AFE Number: 12[i391 72 Hour Footage = Ft. AFE Amount Current Costs = Current Opera, ti0n: Estimated Final Cost = ,, Cleaning pits while waiting on slick line unit.. Summary of L~,~t 7~ l:-Ioum' Cleaned out casing and liner. Displaced well to seawater. Filtered seawater. Ran and landed 4-1/2" tubing. ......... N/U and tested.tree. Freeze protected tubing. Attempted to set packer (returns to annulus). Mud Tvoe Mud Weiaht Viscosity P V Sea Water #/gal. Sec. Angle D. Lr.¢~[9~ TVD YP, ELu[~.¢.~ Solids TemD CC OF N-S E-W Doa Lea Section Coordinate Coordinate °/100, Reviewed By: RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Tuesday. March 26. !991 WELL: Y-~3 (32-28-11-1~), APl No. 50-029,-,221 44 Day' 25 Depth at 0600 Hrs. = 24 Hour Footage = 1,160 Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Ala$,ka United Rig #3 125391 Current Operation: RIH with XN Plug. Summary of Last 24 Hours' Slick line work to attempt to set packer. MudTvoe Mud Weiaht Viscosity p ¥ "(p Fluid Loss Solids Seawater #/gal Sec. cc Temo oF Survey Depth N-$ E-W "An01e .... Dire-ction ..... :FVD section 'Coordinate Coordinate -- Dog Leg o/100' Reviewed By: Fi. IS. BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHQE BAY UNIT As of 0600 Hrs. W~dnesday. March 27. 1991 WELL: Y-33 (32-28-11-13), APl No. ~0-029-22144 Day: 26 Depth at 0600 Hrs. = 11.600 Ft. 24 Hour Footage = Ft. Rig: AFE Number: AFt: Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3. 125391 Current Operation: Equalizing diesel. Summary of Last 24 Hours: Set XN plug in XN Nipple. Ran spinner survey log and detected leak in tubing at 9350'. Pulled XN Plug. N/D tree, N/U and tested BOPs. Pulled tubing free. Attempted to displace diesel.- Mud Type Mud Weight Viscosity P V Seawater....... #/gal Sec. . . YP ELu.i.d_La.~ Solids Temo CC °F, .-- Survey Depth Angle .~ TVD N-$ E-W Dog Leg Section Coordinate Coordinate °/100' Reviewed By' RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: PRUDHOE BAY UNIT As of 0600 Hrs. Thursda, y, March 28. 1991 WELL: Y-33 (32-28-11-13) APl No. ,50-029-221 44 Day: 2_Z7 Depth at 0600 Hrs. = 11,600 Ft. 24 Hour Footage = Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = Alaska United Rig #3 .1 25391 Current Operation: Pulling tubing. ,,Summary of Last 24 Hours: Rigged up to pull tubing. Pulled dummy valve from GLM #4. Displaced diesel with sea water. Pulled tubing. Mud Type Mud Weight Viscositv Seawater #/gal Sec. P V YP Fluid Loss Solids Temo cc °F Survey Depth Angle Direction TV,[D N-S E-W Dog Leg Section Coordinate Coordinate °/100' Reviewed By' RIS BP EXPLORATION (ALASKA), INC. DAILY DRILLING REPORT: As of 0600 Hrs. Monday. Apdl 1. 199t WELL: Y-33 (32-28-11-13) PRUDHOE BAY UNIT AP! No. 50-029-22144 Day: 30 Depth at 0600 Hrs. = 11.600 Ft. 60 Hour Footage = Ft. Rig: AFE Number: AFE Amount = Current Costs = Estimated Final Cost = _Alaska United Rig #3 125391 Current Operation' Rig Released. Moving to Y-32. Summary of Last,, 60 Hours: Completed pulling tubing. Ran and landed 4-1/2" tubing. N/U and tested Tree. Freeze protected well. Set and tested packer and tubing. Released rig at 12:00 3/30/91. Mud T_v.oe Mud Weight Viscosity #/gal Sec. PV YP Fluid Loss Solids Temo cc °F Survey Depth Angle Direction .N-S E-W Dog Leg. ,TVI~ Section Coordinate Coordinate °/100' Reviewed By' RIS Teleco Oilfield Se ~'~; of Alaska Inc. 611 6 Nielson Way Anchorage, AK 99502 (907) 562-2646 March 20, 1991 JOB #809 BP EXPLORATION (ALASKA) INC. WELL: Y-33 PRUDHOE BAY ~ Attached please find a copy of the computer calculated MWD directional surveys for the above mentioned well. Teleco appreciates this opportunity to provide service to BP Exploration (Alaska) Inc. Teleco is committed to providing the highest quality MWD Service and we would welcome any comments or questions concerning these surveys or any of our other services. Sincerely, Field Operations Supervisor JGM/el Enclosures RECEIVED dUN 2 ] 1991 ' ~chorago A ~e~l.l!~'l' COMPANY TELECO OILFIELD SERVICES SURVEY CALCULATIONS Date 03/18/91 Company: BP EXLORATION Well: Y-33 Location: PRUDHOE BAY Rig: AUDI 3 TELECO Job # Grid Correction: Magnetic Declination:. Total grid correction: Proposed Direction: 809TAK 0.0° 30.0° 30.0° 330.6° MINIMUM CURVATURE CALCULATION Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* TIE INTO SPERRY-SUN GYRO 498 0 0.3 214.0 498.00 -0.49 0.90S 0.61W 1.09 S 34.13W 0.00 1020 522 0.3 356.0 1020.00 0.03 0.71S 1.33W 1.50 S 61.91W 0.09 1540 520 0.3 165.0 1540.00 -0.04 0.67S 1.11W 1.30 S 58.85W 0.10 2010 470 1.0 349.0 2009.98 2.90 2.40N 1.64W 2.91 N 34.24W 0.27 2475 465 0.3 330.0 2474.95 7.80 7.31N 2.92W 7.87 N 21.82W 0.17 PAGE 1 Company: BP EXLORATION, Well: Y-33, Location: PRUDHOE BAY, Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* TELECO MWD SURVEYS 2725 250 0.1 16.3 2724.94 8.50 7.99N 3.14W 8.58 N 21.44W 0.08 2819 94 0.4 0.5 2818.94 8.84 8.39N 3.11W 8.95 N 20.33W 0.32 2913 94 3.2 339.0 2912.89 11.72 ll.17N 4.05W 11.88 N 19.91W 3.01 3007 94 5.3 338.0 3006.62 18.62 17.65N 6.61W 18.85 N 20.54W 2.24 3101 94 7.6 333.8 3100.02 29.14 27.25N 10.98W 29.38 N 21.95W 2.50 3196 95 10.5 325.7 3193.83 44.04 40.04N 18.64W 44.17 N 24.96W 3.33 3289 93 13.9' 326.0 3284.72 63.62 56.31N 29.66W 63.64 N 27.78W 3.66 3383 94 16.5 326.4 3375.42 88.19 76.79N 43.36W 88.19 N 29.45W 2.77 3478 95 18.6 327.1 3466.00 116.77 100.75N 59.06W 116.79 N 30.38W 2.22 3572 94 21.6 327.4 3554.26 149.01 127.92N 76.53W 149.07 N 30.89W 3.19 3665 93 24.6 327.4 3639.80 185.44 158.66N 96.18W 185.54 N 31.23W 3.23 3758 93 27.0 326.4 3723.52 225.83 192.56N 118.30W 226.00 N 31.57W 2.63 3852 94 29.8 327.1 3806.19 270.44 229.96N 142.81W 270.69 N 31.84W 2.99 3945 93 33.4 328.5 3885.39 319.10 271.20N 168.74W 319.41 N 31.89W 3.95 PAGE 2 Company: BP EXLORATION, Well: Y-33, Location: PRUDHOE BAY, Rig: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' 4039 94 36.3 328.1· 3962.52 4133 94 38.1 327.8 4037.39 4227 94 40.3 329.2 ~. 411~0.24 372.76 316.89N 196.97W 373.12 N 31.86W 3.09 429.53 365.06N 227.13W 429.95 N 31.89W 1.92 488.89 415.72N 258.15W 489.35 N 31.84W 2.52 4320 93 41.5 327.8 4180.53 549.74 467.63N~ 289.98W 550.24 N 31.80W 1.62 4414 94 44.6 326.4 · 4249.21 613.77 521.48N 324.84W 614.38 N 31.92W 3.45 4509 95 45.5 327.4 ~ 4316.33 680.86 577.81N 361.55W 681.60 N 32.04W 1.21 4603 94 45.3 327.8~ 4382.33 747.70 634.32N 397.42W 748.53 N 32.07W 0.37 4697 94 45.2 328.1'4448.51 814.38 690.90N 432.84W 815.29 N 32.07W 0.25 4790 93 46.0 328.1 4513.57 880.76 747.31N 467.96W 881.74 N 32.05W 0.87 4881 91 46.6 327.4 4576.44 946.48 802.96N 503.07W 947.53 N 32.07W 0.85 4975 94 45.5 328.1 4641.68 1014.06 860.19N 539.18W 1015.21 N 32.08W 1.29 5070 95 45.0 327.8 4708.55 1081.46 917.38N 574.99W 1082.68 N 32.08W 0.56 5163 93 45.4 326.4 4774.08 1147.33 972.79N 610.84W 1148.66 N 32.13W 1.15 PAGE 3 Company: BP-EXLORATION, Well: Y-33, Location: PRUDHOE BAY, Rig: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 5257 94 46.4 326.7' · 4839.49 1214.66 1029.11N 648.04W 1216.15 N 32.20W 1.09 5351 94 46.2 327.4 4904.44 1282.48 1086.13N 685.01W 1284.10 N 32.24W 0.58 5445 94 46.1 326.4 4969.56 1350.13 1142.92N 722.02W 1351.88 N 32.28W 0.77 5538 93 46.1 327.1 5034.05 1416.98 1198.96N 758.77W 1418.88 N 32.33W 0.54 5632 94 46.1 328.1 5099.23 1484.62 1256.15N 795.06W 1486.61 N 32.33W 0.77 5726 94 46.2 328.1 5164.35 1552.34 1313.70N 830.88W 1554.40 N 32.31W 0.11 5820 94 46.1 328.1 5229.47 1620.06 1371.25N 866.70W 1622.19 N 32.30W 0.11 5913 93 45.8 327.8 5294.13 1686.83 1427.90N 902.17W 1689.03 N 32.29W 0.40 6007 94 45.5 327.1 5359.84 1753.94 1484.56N 938.34W 1756.25 N 32.30W 0.62 6100 93 45.0 325.7 5425.31 1819.81 1539.58N 974.88W 1822.28 N 32.34W 1.19 6194 94 44.5 327.1 5492.06 1885.81 1594.70N 1011.51W 1888.44 N 32.39W 1.18 6288 94 44.1 327.8 5559.34 1951.36 1650.04N 1046.83W 1954.09 N 32.39W 0.67 6382 94 43.4 326.7 5627.24 2016.24 1704.71N 1081.99W 2019.09 N 32.40W 1.10 PAGE 4 Company: BP EXLORATION, Well: Y-33, Location: PRUDHOE BAY, Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet~ feet deg deg. feet feet feet feet feet deg deg/100' 6474 92 42.8 328.1 5694.42' 2079.00 1757.66N 1115.86W 2081.95 N 32.41W 1.23 6567 93 43.1 326.7 5762.49 2142.26 1811.04N 1150.00W 2145.31 N 32.42W 1.08 6661~. 94 43.1 326.4 5831.12 2206.33 1864.63N 1185.41W 2209.53 N 32.45W 0.22 6754 · 93 43.1 326.4 5899.03 2269.70 1917.55N 1220.57W 2273.06 N 32.48W 0.00 6846 92 43.8 326.0 5965.82 2332.78 1970.13N 1255.76W 2336.31 N 32.51W 0.81 6940 ." ~ 94 43.8 326.4 6033.66 ~'2397.64 2024.20N 1291.95W 2401.36 N 32.55W 0.29 7034 94 43.7 326.4 6101.57 2462.47 2078.34N 1327.92W 2466.35 N 32.58W 0.11 7127 93 43.7 326.4 6168.80 2526.54 2131.86N 1363.48W 2530.59 N 32.60W 0.00 7220 93 43.6 326.7 6236.09 2590.57 2185.42N 1398.86W 2594.78 N 32.62W 0.25 7311 91 43.5 327.1 6302.05 2653.14 2237.94N 1433.10W 2657.47 N 32.63W 0.32 7405 94 43.3 327.8 6370.35 2717.62 2292.38N 1467.85W 2722.06 N 32.63W 0.55 7504 99 43.2 327.8 6442.46 2785.37 2349.78N 1504.00W 2789.89 N 32.62W 0.10 7598 94 42.6 327.4 6511.32 2849.27 2403.81N 1538.29W 2853.88 N 32.62W 0.70 PAGE 5 Company: BP EXLORATION, Well: Y-33, Location: PRUDHOE BAY, Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100° ******************************************************************************************************* 7693 95 42.5 328.5 6581.30 2913.44 2458.26N 1572.38W 2918.12 N 32.60W 0.79 7788 95 42.1 327.8 6651.57 2977.31 2512.57N 1606.11W 2982.05 N 32.59W 0.65 7883 95 42.1 328.5 6722.06 3040.94 2566.67N 1639.72W 3045.73 N 32.57W 0.49 7979 96 41.9 328.8 6793.40 3105.14 2621.52N 1673.14W 3109.95 N 32.55W 0.29 8068 89 41.9 329.2 6859.64 3164.55 2672.47N 1703.75W 3169.37 N 32.52W 0.30 8162 94 42.4 330.2 6929.33 3227.62 2726.94N 1735.58W 3232.40 N 32.47W 0.89 8254 92 42.2 330.9 6997.38 3289.54 2780.85N 1766.02W 3294.23 N 32.42W 0.56 8346 92 41.7 331.6 7065.80 3351.04 2834.77N 1795.60W 3355.61 N 32.35W 0.74 8440 94 41.2 332.7 7136.26 3413.24 2889.78N 1824.67W 3417.64 N 32.27W 0.94 8553 113 40.9 329.2 7221.49 3487.42 2954.64N 1860.69W 3491.71 N 32.20W 2.05 8646 93 40.3 328.5 7292.10 3547.91 3006.43N 1891.99W 3552.22 N 32.18W 0.81 8740 94 40.9 330.2 7363.47 3609.06 3059.06N 1923.17W 3613.37 N 32.16W 1.34 8835 95 40.0· 331.6 7435.76 3670.70 3112.91N 1953.15W 3674.92 N 32.11W 1.34 PAGE 6 Company: BP EXLORATION, Well: Y-33, Location: PRUDHOE BAY,· Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity feet feet deg deg feet feet feet feet feet deg deg/100' ******************************************************************************************************* 8929 94 38.8 331.6 '7508.39 " 3730.36 3165.40N 1981.53W 3734.47 N 32.05W 1.29 9023 94. 38.1 333.0 7582.01 3788.79 3217.15N 2008.70W 3792.75 N 31.98W 1.19 9116 93 36.8 334.5 9210 94 35.9 334.5 7655.84 3845.25 3267.86N 2033.72W 3849.02 N 31.90W 1.70 7731.55 3900.84 3318.15N 2057.70W 3904.39 N 31.80W 0.96 9305 95 36.1 335.9 ,7808.41 3956.50 3368.84N 2081.12W 3959.82 N 31.71W 0.89 9397 92 37.9 336.2 7881.88 4011.61 3419.44N 2103.59W 4014.68 N 31.60W 1.97 9459 62 39.4 335.9 7930.30 4050.16 3454.82N' 2119.31W 4053.06 N 31.53W 2.44 9521 62 41.4 334.8 7977.51 4090.21 3491.34N 2136.08W 4092.96 N 31.46W 3.42 9584 63 43.2 333.8 8024.11 4132.52 3529.54N 2154.47W 4135.14 N 31.40W 3.05 9647 63 44.6 333.4 8069.50 4176.15 3568.66N 2173.90W 4178.66 N 31.35W 2.27 9709 62 45.5 332.7 8113.30 4219.98 3607.78N 2193.78W 4222.41 N 31.30W 1.66 9771 62 45.9 332.3 8156.60 4264.33 3647.14N 2214.27W 4266.69 N 31.26W 0.79 9833 62 46.1- 332.0 8199.67 4308.91 3686.57N 2235.11W 4311.21 N 31.23W 0.47 PAGE 7 Company: BP EXLORATION, Well: Y-33, Location: PRUDHOE BAY, Riq: AUDI 3 Meas Course True Vertical Coordinates Closure Dog Leg Depth Length Incl Azi Vert. Dp. Section N/S E/W Distance Angle Severity ~feet feet deg deg' feet feet feet feet feet deg deg/100' ******************************************************************************************************* 9927 94 46.8 333.8· 8264.44 4376.99 3747.22N 2266.13W 4379.15 N 31.16W 1.57 9990 63 47..8 333.8 8307.16 4423.21 3788.76N 2286.57W 4425.28 N 31.11W 1.59 10052 62 49.0 332.7 8348.32 4469.53 3830.16N 2307.44W 4471.51 N 31.07W 2.36 10115 63 50.6 331.3.~' 8388.98 4517.64 3872.65N 2330.04W 4519.56 N 31.03W 3.04 10178 63 51.9 330.6 , 8428.41 4566.77 3915.60N 2353.90W 4568.67 N 31.01W 2.24 10241 63 53.3 329.9.'''~ 8466.68 4616.81 3959.04N 2378.73W 4618.70 N 31.00W 2.39 10304 63 54.7 330.9' 8503.71 4667.78 4003.36N 2403.90W 4669.65 N 30.98W 2.57 10408 104 56.2 333.0 8562.69 4753.40 4078.96N 2444.16W 4755.19 N 30.93W 2.21 10503 95 56.6 334.5 8615.27 4832.41 4149.93N 2479.15W 4834.05 N 30.85W 1.37 10597 94 57.1 336.9 8666.67 4910.79 4221.65N 2511.53W 4912.24 N 30.75W 2.20 10696 99 58.4 338.0 8719.50 4993.92 4298.97N 2543.62W 4995.12 N 30.61W 1.62 10791 95 59.3 339.4 8768.64 5074.42 4374.72N 2573.14W 5075.36 N 30.46W 1.57 10809 18 59.6~ 339.4 8777.79 5089.74 4389.23N 2578.60W 5090.63 N 30.43W 1.67 PAGE 8 TEl "'~-?00~lf~eld PLAN VIEW SePvice 6400 BP EXLORATION Y-33 PRUDHOE BAY AUDI 3 JOB# 809TAK/O0 SCALE: ~ inch = 800 feel + 10809. 10503~ ~.024 $ 9990 ' 9709 ' 9.~97 ' 8646 ' 8346 · 7979 ' 7693 ' 74O5 6474 535 4790 ' 4509 4~33 560O 4800 4000 3200 2400 ~600 800 800 48OO 4OOO TELF"'~90ilfield Services ~'-', VER ]- I C AL PROJECT T ON -1000 lO00 3000 5000 7000 9000 11000 2boo 40oo 76000 I mBO00 >lO000 12000 14000 15000 i8000 I49B ' .25 deg i020 " .25 deg 1540 " .25 deg I 20i0 '1 i.Oi deg 2475 ' .25 deg 29iS ' 3.2 deg 3383 ' i6.5 deg 3852 ' 29.8 deg BP EXLORATION Y-33 PRUDHOE BAY AUDI 3 JOB# 809TAK/O0 SCALE: ~ inch = 2000 4 ' 44.6 deg 70 ' 45. Oi deg 26 ' 46.2 deg ~%~382 · 43.4 deg 646 ' 40.3 deg .2i0 ' 35.9 deg ~7.7i' 45.9 deg ~+oI%~o; .-~. ~~ feet VERTICAL SECTTON (ft) GREAT LAND DIRECTIONAL DRILLING, INC. REPORT OF SUB-SURFACE DIRECTIONAL SURVEY BP EXPLORATION (ALASKA) INC. 'O: l$1/V4j_ COMPANY Y-33 WELL NAME PRUDHOE BAY LOCATION AL291D12 MWD 03/18/91 JOB NUMBER DON LEJUENE TYPE SURVEY DIRECTIONAL SUPERVISOR NAME TITLE SIGNATURE 498 FT. 10809 FT. DEPTH INTERVAL FROM TO 02/27/91 03/15/91 DATE SURVEY TAKEN FROM TO THIS IS A RECORD'OF A SUB-SURFACE SURVEY OF YOUR WELL WE HAVE RETAINED A COPY OF YOUR SURVEY REPORT IN OUR FILES FOR YOUR CONVENIENCE; HOWEVER, SHOULD YOU SO DESIRE, ALL COPIES OF' THE SURVEY REPORT WILL BE FORWARDED TO YOU ON WRITTEN REQUEST. ALL SURVEYS ARE KEPT IN A LOCKED FILE AND ARE HELD IN STRICTEST CONFIDENCE. ~ate ~ OzJ ;. RECEIVED JUN ~ I 1991 Anchorage GREAT LAND Client .... : Field ..... : Well ...... : Section at: Engineer..: DIRECTIONAL DRILLING, BP EXPLORATION PRUDHOE BAY Y-33 N,'29.36,W DON LEJUENE S MEAS INCLN C DEPTH ANGLE 3 498 0.25 3 1020 0.25 3 1540 0.25 3 2010 1.00 3 2475 0.25 3 2725 0.10 3 2819 0.40 3 2913 3.20 3 3007 5.30 3 3101 7.60 3 3196 10.50 3 3289 13.90 3 3383 16.50 3 3478 18.60 3 3572 21.60 3 3665 24.60 3 3758 27.00 3 3852 29.80 3 3945 33.40 3 4039 36.30 3 4133 38.10 Survey Codes: (PY33D BI. 17) VERTICAL-DEPTHS BKB SUB-SEA 498.0 409.8 1020.0 931.8 1540.0 1451.8 2010.0 1921.8 2474.9 2386.7 2724.9 2636.7 2818.9 2730.7 2912.9 2824.7 3006.6 2918.4 3100.0 3011.8 INC. SECTION DISTNCE -0.5 0.7 0.2 -0.7 4.3 5.0 5.4 8.1 15.0 25.6 3193.8 3105.6 40.5 3284.7 3196.5 60.1 3375.4 3287.2 84.6 3466.0 3377.8 113.2 3554.2 3466.1 145.5 3639.8 3551.6 181.9 3723.5 3635.3 222.3 3806.2 3718.0 266.9 3885.4 3797.2 315.5 3962.5 3874.3 369.2 4037.4 3949.2 426.0 3/MWD 03/19/91 RECORD OF SURVEY Computation...: RADIUS OF CURVATURE Survey Date...: 03/15/91 RKB Elevation.: 88.18 ft Reference ..... : Magnetic Dcln.: 30.00 E DIRECTION BEARING S 34.00 W N 4.00 W S 15.00 E N 11. O0 W N 30.00 W N 14.00 E N 0.50 E N 21.00 W N 22.00 W N 26.20 W RELATIVE-COORDINATES FROM-WELL-HEAD 0.9S 0.6W 0.5S 2.3W 0.2S 0.8W 0.6N 2.5E 5.3N 0.7E 5.9N 0.3E 6.4N 0.3E 9.2N 0.2W 15.7N 2.7W 25.4N 7.1W N 34.30 W 38.3 N 14.6 W N 34.00 W 54.5 N 25.6 W N 33.60 W 75.0 N 39.3 W N 32.90 W 99.0 N 55.0 W N 32.60 W 126.1 N 72.5 W N 32.60 W 156.9 N 92.2 W N 33.60 W 190.8 N 114.3 W N 32.90 W 228.1 N 138.8 W N 31.50 W 269.4 N 164.7 W N 31.90 W 315.1 N 193.0 W N 32.20 W- 363.2 N 223.1 W CLOSURE DISTNCE BEARING 1.1 S 34.00 W 2.3 S 78.84 W 0.8 .'S 75.67 W 2.5 N 77.42 E 5.3 N 7.62 E 6.0 N 3.13 E 6.4 N 2.96 E 9.2 N 1.20 W 16.0 N 9.91 W 26.3 N 15.55 W 40.9 N 20.86 W 60.2 N 25.16 W 84.7 N 27.67 W 113.2 N 29.08 W 145.5 N 29.89 W 181.9 N 30.44 W 222.4 N 30.92 W 267.0 N 31.31 W 315.7 N 31.45 W 369.5 N 31.48 W 426.3 N 31.56 W DL /lOO .... - 0.05 0.00 0.00 0.16 0.16 0.06 0.32 2.98 2.23 2.45 3.07 3.66 2.77 .2.21 3.19 3.23 2.59 2.98 3.90 3.09 1.92 Y-33 S MEAS INCLN C DEPTH ANGLE 3 4227 40.30 3 4320 41.50 3 4414 44.60 3 4509 45.50 3 4603 45.30 VERTICAL-DEPTHS BKB SUB-SEA SECTION DISTNCE 4110.2 4022.0 485.3 4180.5 4092.3 546.2 4249.2 4161.0 610.2 4316.3 4228.1 677.3 4382.3 4294.1 744.1 3 4697 45.20 4448.5 4360.3 3 4790 46.00 4513.6 4425.4 3 4881 46.60 4576.4 4488.2 3 4975 45.50 4641.7 4553.5 3 5070 45.00 4708.5 4620.4 3 5163 45.40 4774.1 4685.9 3 5257 46.40 4839.5 4751.3 3 5351 46.20 4904.4 4816.3 3 5445 46.10 4969.6 4881.4 3 5538 46.10 5034.0 4945.9 3 5632 46.10 5099.2 5011.0 3 5726 46.20 5164.3 5076.2 3 5820 46.10 5229.5 5141.3 3 5913 45.80 5294.1 5205.9 3 6007 45.50 5359.8 5271.7 3 6100 45.00 5425.3 5337.1 3 6194 44.50 5492.1 5403.9 3 6288 44.10 5559.3 5471.2 3 6382 43.40 5627.2 5539.1 3 6474 42.80 5694.4 5606.2 3 6567 43.10 5762.5 5674.3 RECORD OF SURVEY Page 2 03/19/91 ASurvey Codes: 3/MWD 810.8 877.2 942.9 1010.5 1077.9 1143.8 1211.1 1278.9 1346.6 1413.4 1481.0 1548.8 1616.5 1683.3 1750.4 1816.2 1882.2 1947.8 2012.7 2075.4 2138.7 DIRECTION BEARING N 30.80 W N 32.20 W. N 33.60 W N 32.60 W N 32.20 W N 31.90 W N 31.90 W N 32.60 W N 31.90 W N 32.20 W N 33.60 W N 33.30 W N 32.60 W N 33.60 W N 32.90 W N 31.90 W N 31.90 W N 31.90 W N 32.20 W N 32.90 W N 34.30 W N 32.90 W N 32.20 W N 33.30 W N 31.90 W N 33.30 W RELATIVE-COORDINATES CLOSURE FROM-WELL-HEAD DISTNCE BEARING 413.9 N 254.1 W 485.7 N 31.55 W 465.8 N 286.0 W 546.6 N 31.55 W 519.7 N 320.8 W 610.7 N 31.69 W 576.0 N 357.5 W 677.9 N 31.83 W 632.5 N 393.4 W 744.9 N 31.88 W 689.1 N 428.8 W 811.6 N 31.89 W 745.5 N 463.9 W 878.1 N 31.89 W 801.1 N 499.0 W 943.8 N 31.92 W 858.4 N 535.1 W 1011.5 ~N 31.94 W 915.6 N 570.9 W 1079.0 N 31.95 W 971.0 N N 32.00 W 1027.3 N N 32.08 W 1084.3 N N 32.13 W 1141.1 N '718.0 W 1348.2 N 32.18 W 1197.1 N 754.7 W 1415.2 N 32.23 W .. 1254.3 N 791.0 W 1482.9 N 32.24'W 1311.9 N 826.8 W 1550.7 N 32.22 W 1369.4 N 862.7 W 1618.5 N 32.21 W 1426.1 N 898.1 W 1685.3 N 32.20 W 1482.7 N 934.3 W 1752.5 N 32.22 W 606.8 W 1145.0 644.0 W 1212.5 681.0 W.' 1280.4 1537.7 N 970.8 W 1818.6 N 32.27 W 1592.9 N 1007.5 W 1884.7 N 32.31 W 1648.2 N 1042.8 W 1950.4 N 32.32 W 1702.9 N 1078.0 W 2015.4 N 32.33 W 1755.8 N 1111.8 W 2078.2 N 32.34 W 1809.2 N 1146.0 W 2141.6 N 32.35 W DL /lOO 2.42 1.4~ 3.35 1.09 0.30 0.19 0.86 0.77 1.23 0.55 0.88 1.08 0.44 0.56 0.39 0.55 0.11 0.11 0.36 0.50 0.92 0.90 0.56 0.93 0.96 0.77 Y-33 3 3 3 3 3 MEAS INCLN DEPTH ANGLE 6661 43.10 6754 43.70 6846 43.80 6940 43.80 7034 43.70 3 7127 43 .,70 3 7220 43.60 3 7311 43.50 3 7405 43.30 3 7504 43.20 3 7598 42.60 3 7693 42.50 3 7788 42.10 3 7883 42.10 3 7979 41.90 VERTICAL-DEPTHS BKB SUB-SEA 3 8068 41.90 3 8162 42.40 3 8254 42.20 3 8346 41.70 3 8440 41.20 SECTION DISTNCE 5831.1 5742.9 2202.7 5898.7 5810.5 2266.5 5965.1 5877.0 2329.9 6033.0 5944.8 2394.8 6100.9 6012.7 2459.6 RECORD OF sURVEY 6168.1 6080.0 2523.7 6235.4 6147.2 2587.7 6301.4 6213.2 2650.3 6369.7 6281.5 2714.7 6441.8 6353.6 2782.5 DIRECTION BEARING RELATIVE-COORDINATES FROM-WELL-HEAD N 33.60 W 1862.8 N 1181.4 W N 33.59 W 1916.0 N 1216.7 W N 34.00 W 1968.9 N 1252.1 W N 33.60 W 2023.0 N 1288.3 W N 33.60 W 2077.1 N 1324.3 W N 33.60 W 2130.6 N 1359.8 W N 33.30 W 2184.2 N 1395.2 W N 32.90 W 2236.7 N 1429.4 W N 32.20 W 2291.1 N 1464.2 W N 32.20 W 2348.5 N 1500.3 W 6510.6 6422.5 2846.4 N 32.60 W 2402.6 N 1534.6 W 6580.6 6492.5 2910.6 N 31.50 W 2457.0 N 1568.7 W 6650.9 6562.7 2974.4 N 32.20 W 2511.3 N 1602.5 W 6721.4 6633.2 3038.1 N 31.50 W 2565.4 N 1636.1 W 6792.7 6704.5 3102.3 N 31.20 W 2620.3 N 1669.5 W 6859.0 6770.8 3161.7 N 30.80 W 2671.2 N 1700.1 W 6928.7 6840.5 3224.8 N 29.80 W 2725.7 N 1731.9 W 6996.7 6908.5 3286.7 N 29.10 W 2779.6 N 1762.4 W 7065.1 6976.9 3348.2 N 28.40 W 2833.5 N '1791.9 W 7135.6 7047.4 3410.4 N 27.30 W 2888.5 N 1821.0 W 3 8553 40.90 7220.8 7132.6 3 8646 40.30 7291.4 7203.2 3 8740 40.90 7362.8 7274.6 3 8835 40.00 7435.1 7346.9 3 8929 38.80 7507.7 7419.5 3 9023 38.10 7581.3 7493.1 3484.6 3545.1 3606.2 3667.8 3727.5 N 30.80 W 2953.4 N 1857.0 W N 31.50 W 3005.2 N 1888.4 W N 29.80 W 3057.8 N 1919.5 W N 28.40 W 3111.7 N 1949.5 W N 28.39 W 3164.2 N 1977.9 W N 27.00 W 3215.9 N 2005.0 W 3785.9 Page 3 03/19/91 CLOSURE DISTNCE BEARING 2205.8 N 32.38 W 2269.7 N 32.42 W 2333.3 N 32.45 W 2398.3 N 32.49 W 2463.3 N 32.52 W 2527.6 N 32.55 W 2591.8 N 32.57 W 2654.5 N 32.58 W 2719.0 .N 32.58 W 2786.9 N 32.57 W 2850.9 N 32.57 W 2915.1 N 32.56 W 2979.0 N 32.54 W 3042.7 N 32.53 W 3106.9 N 32.50 W ,. 3166.4 N 32.47 W 3229.4 N 32.43 W 3291.2 N 32.38 W 3352.6 N 32.31 W 3414.6 N 32.23 W 3488.7 N 32.16 W 3549.2 N 32.14 W 3610.4 N 32.12 W 3671.9 N 32.07 W 3731.5 N 32.01 W 3789.8 N 31.94 W DL 11oo 0.15 0.65' 0.24 0.20 0.11 0.00 0.19 0.24 0.41 0.10 0.67 0.54 0.54 0.33 0.25 0.20 0.72 0.41 0.64 0.74 1.35 0.72 1.00 1.13 1.28 0.93 ASurvey Codes: 3/MWD , Y-33 S MEAS INCLN C DEPTH ANGLE 3 9116 36.80 3 9210 35.90 3 9305 36.10 3 9397 37.90 3 9459 39.40 VERTICAL-DEPTHS BKB SUB-SEA RECORD OF SURVEY SECTION DISTNCE DIRECTION BEARING RELATIVE-COORDINATES FROM-WELL-HEAD 7655.2 7567.0 3842.4 N 25.50 W 3266.6 N 2030.1 W 7730.9 7642.7 3898.0 N 25.50 W 3316.9 N 2054.0 W 7807.7 7719.5 3953.6 N 24.10 W 3367.6 N 2077.5 W 7881.2 7793.0 4008.8 N 23.80 W 3418.2 N 2099.9 W 7929.6 7841.4 4047.3 N 24.10 W 3453.6 N 2115.7 W 3 9521 41.40 7976.8 7888.6 3 9584 43.20 8023.4 7935.2 3 9647 44.60 8068.8 7980.6 3 9709 45.50 8112.6 8024.4 3 9771 45.90 8155.9 8067.7 4087.4 4129.7 4173.3 4217.1 4261.5 8199.0 8110.8 4306.1 8263.7 8175.6 4374.1 8306.5 8218.3 4420.4 8347.6 8259.5 4466.7 8388.3 8300.1 4514.8 8427.1 8338.9 4563.1 8466.0 8377.8 4614.0 8503.0 8414.8 4664.9. 8562.0 8473.8 4750.6 8614.6 8526.4 4829.6 3 9833 46.10 3 9927 46.80 3 9990 47.80 3 10052 49.00 3 10115 50.60 N 25.20 W 3490.1 N 2132.4 W N 26.20 W 3528.3 N 2150.8 W N 26.60 W 3567.5 N 2170.2 W N 27.30 W 3606.6 N 2190.1 W N 27.70 W. 3645.9 N 2210.6 W N 28.00 W 3685.4 N 2231.4 W N 26.20 W 3746.0 N 2262.5 W N 26.19 W 3787.5 N 2282.9 W N 27.30 W 3828.9 N 2303.8 W N 28.70 W 3871.4 N 2326.4 W N 29.40 W 3913.7 N 2349.8 W N 30.10 W 3957.8 N 2375.1 W N 29.10 W 4002.2 N 2400.2 W N 27.00 W 4077.7 N 2440.5 W N 25.50 W 4148.7 N 2475.5 W 3 10177 51.90 3 10241 53.30 3 10304 54.70 3 10408 56.20 3 10503 56.60 3 10597 57.10 8666.0 8577.8 4908.0 N 23.10 W 4220.4 N 2507.9 W 3 10696 58.40 8718.8 8630.6 4991.1 N 22.00 W 4297.8 N 2540.0 W 3 10791 59.30 8767.9 8679.7 5071.6 N 20.60 W 4373.5 N 2569.5 W 3 10809 59.60 8777.1 8688.9 5086.9 N 20.59 W 4388.0 N 2575.0 W ASurvey Codes: 3/MWD Page 4 03/19/91 CLOSURE DISTNCE BEARING 3846.0 N 31.86 W 3901.4 N 31.77 W 3956.9 N 31.67 W 4011.7 N 31.56 W 4050.1 N 31.49 W 4090.0 N 31.42 W 4132.2 N 31.37 W 4175.7 N 31.31 W 4219.5 -N 31.27 W 4263.7 N 31.23 W 4308.3 N 31.19 W 4376.2 N 31.13 W 4422.3 N 31.08 W 4468.6 N 31.03 W 4516.6 N 31.00 W ,. 4565.0 N 30.98 W 4615.8 N 30.97 W 4666.7 N 30.95 W 4752.3 N 30.90 W 4831.1 N 30.82 W 4909.3 N 30.72 W 4992.2 N 30.58 W 5072.5 N 30.44 W 5087.8 N 30.41'W DL /lOO 1.51 O. 96'~ \ 0.55 ~' 1.96 2.43 3.32 2.95 2.24 1.56 0.73 0.41 1.26 1.59 2.19 2.87 2.21 2.30 2.46 2.01 1.18 1.88 1.54 1.44 1.67 Y-33 Page 5 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL 03/19/91 SUBSEA MEAS INCLN DEPTH DEPTH ANGLE TVD BKB 500 588 0.25 588 600 688 0.25 688 700 788 0.25 788 800 888 0.25 888 900 988 0.25 988 1000 1088 0.25 1088 1100 1188 0.25 1188 1200 1288 0.25 1288 1300 1388 0.25 1388 1400 1488 0.25 1488 0.33 0.49 0.65 0.81 0.97 1500 1588 1600 1688 1700 1788 1800 1888 1900 1988 0.87 0.71 0.55 0.39 0.24 2000 2088 2100 2188 2200 2288 2300 2388 2400 2488 1588 1688 1788 1888 1988 2088 2188 2288 2388 2488 2500 2588 0.18 2588 2600 2688 0.12 2688 2700 2788 0.30 2788 2800 2888 2.46 2888 2900 2989 4.89 2988 MD-TVD VERT DIRECTION RELATIVE COORDINATES DIFF CRRT BEARING FROM WELL HEAD 0 0 S 58.53 W 1.17 S 0.89 W 0 0 S 85.74 W,. 1.30. S 1.30 W 0 0 N 67.06 W 1.23 S 1.73 W 0 0 N 39.86 W 0.98 S 2.07 W 0 0 N 12.65 W 0.59 S 2.27 W 0 0 S 29.05 E 0.39 S 2.08 W 0 0 S 65.78 E 0.10 S 1.79 W 0 0 N 77.49 E 0.41 N 1.64 W 0 0 N 40.76 E 1.04 N 1.79 W 0 0 N 4.03 E 1.59 N 2.29 W 0 0 N 3.87 E 0.18 S 0.61 W 0 0 N 43.02 E 0.39 S 0.02 W 0 0 N 82.17 E 1.18 S 0.70 E 0 0 S 58.68 E 2.70 S 1.10 E 0 0 S 19.53 E 4.74 S 0.63 E 0 0 N 14.20 W 1.80 N 2.20 E 0 0 N 18.28 W 3.13 N 1.80 E 0 0 N 22.37 W 4.15 N 1.40 E 0 0 N 26.46 W 4~88 N 1.01 E 0 0 N 27.67 W 5.33 N 0.68 E 0 0 N 10.07 W 5.68 N 0.56 E 0 0 N 7.53 E 5.95 N 0.57 E 0 0 N 4.92 E 6.16 N 0.34 E 0 0 N 15.35 W 8.06 N 0.11 E 0 0 N 21.80 W 14.20 N 2.14 W 3000 3089 7.31 3088 1 1 N 25.67 W 23.96 N 6.39 W ~-33 Page 6 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL 03/19/91 ~UBSEA MEAS INCLN DEPTH DEPTH ANGLE TVD BKB 3100 3190 10.33 3188 3200 3293 14.00 3288 3300 3396 16.79 3388 3400 3501 19.35 3488 3500 3609 22.78 3588 3600 3719 25.98 3688 3700 3831 29.18 3788 3800 3948 33.50 3888 3900 4071 36.91 3988 4000 4198 39.63 4088 4100 4330 41.84 4188 4200 4469 45.12 4~288 4300 4611 45.29 4388 4400 4754 45.69 4488 4500 4898 46.40 4588 4600 5041 45.15 4688 4700 5183 45.61 4788 4800 5328 46.25 4888 4900 5472 46.10 4988 5000 5616 46.10 5088 5100 5760 46.16 5188 5200 5904 45.83 5288 5300 6047 45.28 5388 5400 6189 44.53 5488 5500 6328 43.80 5588 MD-TVD VERT DIRECTION RELATIVE COORDINATES DIFF CRRT BEARING FROM WELL HEAD 2 1 N 33.81 W 37.39 N 14.01 W 4 2 N 33.98 W 55.23 N 26.09 W 8 4 N 33.50 W 78.18 N 41.43 W 13 5 N 32.83 W 105.36 N 59.17 W 20 7 N 32.60 W 137.78 N 79.96 W 30 10 N 33.18 W 176.06 N 104.57 W 43 13 N 33.05 W 219.60 N 133.23 W 60 17 N 31.51 W 270.95 N 165.70 W 83 23 N 32.00 W 331.25 N 203.04 W 110 27 N 31.23 W 398.06 N 244.63 W 142 32 N 32.35 W 471.57 N 289.61 W 181 39 N 33.02 W 552.09 N 342.12 W 223 42 N 32.17 W 637.52 N 396.55 W 265 42 N 31.90 W 723.31 N 450.12 W 310 45 N 32.47 W 811.58 N 505.70 W 353 43 N 32.11 W 898.27 N 560.08 W 395 42 N 33.54 W 982.92 N 614.73 W 439 44 N 32.77 W 1070.03 N 671.80 W 484 44 N 33.40 W 1157.23 N 728.66 W 528 44 N 32.07 W 1244.59 N 784.94 W 572 44 N 31.90 W 1332.96 N 839.97 W 616 44 N 32.17 W 1420.90 N 894.87 W 659 43 N 33.51 W 1506.78 N 950.03 W 700 41 N 32.98 W 1589.66 N 1005.39 W 740 40 N 32.67 W 1671.67 N 1057.70 W 5600 6465 42.86 5688 777 37 · N 32.03 W 1750.93 N 1108.76 W ~-33 SUBSEA DEPTH 5700 5800 5900 6000 6100 6200 6300 6400 6500 6600 6700 6800 6900 7000 7100 7200 7300 7400 7500 7600 7700 7800 7900 8000 8100 MEAS DEPTH 6602 6739 6878 7016 7155 7293 7430 7567 7703 7838 7973 8107 8242 8377 8510 8642 8774 8904 9032 9157 9281 9406 9536 9674 9817 Page DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL 7 03/19/91 INCLN TVD MD-TVD VERT DIRECTION ANGLE BKB DIFF CRRT BEARING RELATIVE COORDINATES FROM WELL HEAD 43.10 5788 814 37 N 33.41 W 1829.29 N 1159.18 W 43.61 5888 851 37 N 33.59 W 1907.67 N 1211.16 W 43.80 5988 890 38 N 33.86 W 1987.22 N 1264.43 W 43.72 6088 928 38 N 33.60 W 2066.98 N 1317.54 W 43.67 6188 967 38 N 33.51 W 2146.57 N 1370.41 W 43.52 6288 1005 38 N 32.98 W 2226.19 N 1422.63 W 43.27 6388 1042 38 N 32.20 W 2305.89 N 1473.48 W 42.80 6488 1079 37 N 32.47 W" 2385.09 N 1523.48 W 42.46 6588 1115 36 N 31.58 W 2462.91 N I572.34' W 42.10 6688 1150 35 N 31.83 W 2539.89 N 1620.32 W 41.91 6788 1185 35 N 31.22 W 2616.80 N 1667.37 W 42.11 6888 1219 34 N 30.38 W 2693.88 N 1713.49 W 42.23 6988 1254 35 N 29.19 W 2772.86 N 1758.60 W 41.54 7088 1289 34 N 28.04 W 2851.58 N 1801.63 W 41.01 7188 1322 33 N 29.46 W 2928.92 N 1842.83 W 40.33 7288 1354 32 N 31.47 W 3002.87 N 1886.92 W 40.58 7388 1385 32 N 29.31 W 3076.86 N 1930.33 W 39.12 7488 1416 30 N 28.39 W 3150.28 N 1970.37 W 37.98 7588 1444 28 N 26.86 W 3220.70 N 2007.48 W 36.41 7688 1469 25 N 25.50 W 3288.78 N 2040.62 W 36.05 7788 1493 24 N 24.46 W 3354.64 N 2071.61 W 38.11 7888 1518 25 N 23.84 W 3423.21 N 2102.15 W 41.83 7988 1548 30 N 25.44 W 3499.24 N 2136.73 W 45.00 8088 1586 38 N 26.91 W 3584.62 N 2178.88 W 46.05 8188 1629 43 N 27.92 W 3675.45 N 2226.18 W 8200 9963 47.37 8288 1675 45 N 26.19 W 3769.58 N 2274.07 W f-33 Page 8 DATA INTERPOLATED FOR 100 FT SUBSEA INTERVAL o3/19/91 · ~UBSEA MEAS INCLN )EPTH DEPTH ANGLE TVD BKB MD-TVD VERT DIRECTION RELATIVE COORDINATES DIFF CRRT BEARING FROM WELL HEAD 8300 10115 50.60 8388 8400 10279 54.13 8488 8500 10455 56.40 8588 8600 10638 57.64 8688 1727 52 N 28.70 W 3871.31 N 2326.29 W 1790 64 N 29.50 W 3984.09 N 2390.10 W 1867 77 N 26.25 W 4112.86 N 2458.12 W 1950 83 N 22.64 W 4252.41 N 2521.39 W ~-33 Page 9 DATA INTERPOLATED FOR 1000 FT MEASURED DEPTH INTERVAL o3/19/91 MEAS INCLN VERT-DEPTHS SECT DIRECTION REL-COORDINATES CLOSURE DEPTH ANGLE BKB SUB-S DIST BEARING FROM-WELLHEAD DIST BEARING 1000 0.25 1000 912 1 N 9.44 W 2000 0.98 2000 1912 -5 S 14.91 E 3000 5.14 3000 2911 14 N 21.93 W 4000 35.10 3931 3843 346 N 31.73 W 5000 45.37 4659 4571 1028 N 31.98 W DL/ 100 iS 5S 15-N 296 N 873 N 2 W 2 S 76.71 W 0.0 1 E 5 S 5.76 E 0.2 3 W 15 N 9.42 W 2.2 181 W 347 N 31.46 W 3.1 545 W 1029 N 31.94 W 0.6 6000 45.52 5355 5267 1745 N 32.85 W 1479 N 7000 43.74 6076 5988 2436 N 33.60 W 2058 N 8000 41.90 6808 6720 3116 N 31.11 W 2632 N 9000 38.27 7563 7475 3772 N 27.34 W 3203 N 10000 47.99 8313 8225 4428 N 26.37 W 3794 N 932 W 1748 N 32.21 W 0.5 1311 W 2440 N 32.51 W 0.1 1677 W 3121 N 32.50 W 0.2 1999 W 3776 N 31.96 W 0.9 2286 W 4430 N 31.07 W 2.2 <KB>O 500 t000 t500 2000 2500 3000 3500 4000 T ;~5oo V- D 5000 5500 6000 6500 7000 -. 7500 BO00 8500 9000 500 VERTICAL SECTION VIEW - !¥-33 , ,. . TVD Scale.' I inch ~ ~ ~Oep Scale · ! inch ! -- ! i or, a.~ · o3/~/~ I I Marker Iden~.i f ica~.ion ........ ........... ~~-.. ....... ~ ~ ." ., ,,~ ...... ............. -- .... . = 1000 feet = ~000 feet MD TVO SECTN INCLN 0 0 0 0.00 ~.0809 8777 5087 59.60 0 500 iO00 t500 2000 2500 3000 3500 4000 4500 5000 Section Depart:ute A/ A I Spear Land Directional Drilling, Harker Identification MO NIS A) KB 0 0 N 0 8} TO 10809 4388 N 2575 PLAN VIEN BP EXPLORATION Y-33 CLOSURE ..... : 5088 ft N 30.41 DECLINATION.: 30.00 E SCALE ....... : ! inch = 700 feet DRANN ....... : 03/i9/9! 4550 4200 3850 3500 3i50 28OO 2450 2].00 t750 t400 i050 700 350 350 3850 3500 3i50 2800 2450 2]00 i750 i400 t050 700 '350 0 350 <- NEST · EAST -> SUB - S URFA CE DIRECTIONAL SURVEY r-G-~ UiDANCE ~'~ ONTINUOUS r'~ OOL qate ~. Company BP EXPLORATION Well Name Y-33 (32-28-11-13) (1311~ FNL, 260' FWL,_SEC 3.4, T11N, R13E) Field/Location PRUDHOE BAY, NORTH SLOPE~ ALASKA Job Reference No. 74511 Logged By: PORTER Date 9-APR-91 Computed BV DEES ~ SCr~UMBERGEP: * GCT DIRECTIONAL SURVEY CUSTOMER LISTING FOR BP EXPLORATION Y-33 (32-28-11-13) PRUDHOE BAY NORTH SLOPE, ALASKA SURVEY DATE: 09-APR-91 METHODS OF COMPUTATION TOOL LOCATION: INTERPOLATION: VERTICAL SECTION: ENGINEER: K. PORTER TANGENTIAL- Averaged deviation LINEAR HORIZ, DIST. PROJECTED ONTO A and azimuth TARGET AZIMUTH OF NORTH 29 DEG 43 MIN WEST COMPUTATION DATE: 19-APR-91 PAGE 1 BP EXPLORATION Y-33 (32-28-1 -13) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 09-APR-91 KELLY BUSHING ELEVATION: 88.18 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUT~ DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORD}NATES HOR!Z. DEPARTURE SECT}ON SEVERET'~ NORTH/SOUTH EAST/WEST DIS-~ . AZIMUT~ FEET DEG/IO0 FEE7 FEET FEET DEG MIN 0 oo 100 O0 100 200 O0 200 300 O0 300 400 O0 400 500 O0 500 6OO O0 60O 700 O0 699 800 O0 799 9OO O0 899 0 O0 O0 O0 O0 O0 oo oo 99 99 99 -88 18 11 82 111 82 211 82 311 82 411 82 511 82 611 81 711 81 811 81 0 0 N 0 0 E 0 4 S 19 21 W 0 5 S 19 10 W 0 12 S 12 36 W 0 15 S 16 50 W 0 21 S 19 30 W 0 21 S 17 24 W 0 11 S 7 14 E 0 3 S 35 36 W 0 5 S 80 36 E 0 O0 -0 09 -0 17 -0 35 -0 62 -0 98 -1 38 -1 78 -1 89 -1 97 0 O0 0 O0 0 O0 0 O0 0 O0 0 O0 0 O0 0 25 0 oo 0 16 0 oo N 0 13 S 0 24 S 0 46 S 0 83 S 1 32 S 1 90 S 2 42 S 2 53 S 2 62 S 0 O0 E 0 04 W 0 07 W 0 10 W 0 19 W 0 34 W 0 54 W 0 65 W 0 62 W 0 62 W 0 O0 N 0 0 E 13 S 19 28 W 25 S 16 37 W 47 S t2 40 W 85 S 12 57 W 37 S 14 20 W 98 S 15 58 W 51 S 14 58 W 61 S 13 51W 69 S 13 15 W 1000 O0 999.99 911.81 1100 O0 1099.99 1011.81 1200 O0 1199.99 1111.81 1300 O0 1299.99 1211.81 1400 O0 1399.99 1311.81 1500 O0 1499.99 1411.81 1600.00 1599.99 1511.81 1700.00 1699.99 1611.81 1800.00 1799.99 1711.81 1900.00 1899.99 1811.81 0 4 N 0 34 E 0 4 N 76 51 E 0 3 N 14 13 W 0 2 N 39 9 E 0 5 S 75 33 E 0 9 S 29 7 E 0 5 S 48 16 E 0 13 N 8 45 W o 30 N 5 2 W 0 54 N 2O 13 W -1 95 -1 95 -1 88 -1 87 -1 90 -1 98 -2 17 -2 18 -1 70 -0 59 0 O4 0 10 0 10 0 O0 0 38 0 32 0 59 0 15 0 37 0 53 2.54 S 2.51 S 2.40 S 2.37 S 2 39 S 2 44 S 2 56 S 2 48 S 1 94 S 0 88 S 0 50 w 0 47 w 0 42 w 0 39 w 0 37 w 0 29 w 0 0 05 E 0 03 E 0 35 W 2 59 S 11 12 W 56 S 10 35 W 44 S 9 52 W 41 S 9 27 W 42 S 8 43 W 46 S 6 41W 56 S 2 37 W 48 S 1 6 E 94 S 0 49 E 95 S 21 45 W 2000.00 1999.97 1911 79 2100.00 2099 96 2011 22OO O0 2199 23OO O0 2299 2400 O0 2399 25OO O0 2499 2600 O0 2599 2700 O0 2699 28O0 O0 2799 2900 O0 2899 95 2111 93 2211 93 2311 92 2411 92 2511 92 2611 92 2711 88 2811 78 77 75 75 74 74 74 74 70 0 56 N 21 38 W 0 54 N 14 24 W 0 53 N 2 11 W 0 43 N 1 27 W 0 39 N 6 50 W 0 24 N 12 28 E 0 20 N 14 9 E 0 13 N 256 E 0 25 N 8 13 E 2 45 N 17 23 W 1 15 2 66 4 11 5 47 661 7 37 7 82 8 24 8 62 11 02 0.91 0 49 0 54 016 0 53 0 03 0 O0 0 13 0 55 2 65 0 76 N 2 28 N 381 N 5 30 N 6 59 N 7 49 N 8 07 N 8 60 N 9 10 N 11 57 N o 99 w 1 38 w 1 61 w 1 75 w 1 80 w 1 74 w 1 63 w 1 54 w 1 45 w 1 95 w 1 24 N 52 32 W 2 4 5 6 7 8 8 9 11 66 N 31 9 W 14 N 22 53 W 58 N 18 15 W 83 N 15 18 W 69 N 13 7 W 23 N 11 24 W 74 N 10 10 W 21 N 9 5 W 74 N 9 34 W 3000 O0 2999 61 2911.43 3100 3200 3300 34OO 3500 3600 3700 3800 3900 5 8 O0 3098 O0 3197 O0 3295 O0 3391 O0 3486 O0 3579 O0 3671 O0 3760 .00 3846 97 3010.79 7 30 69 3109.51 lO 40 32 3207 14 14 5 59 3303 41 17 3 53 3398 35 19 26 ,90 3491 72 22 37 07 3582 89 25 46 10 3671 92 28 22 72 3758 54 31 51 N 22 26 W N 25 50 W N 33 42 W N 33 37 W N 33 29 W N 32 57 W N 32 2 W N 32 43 W N 33 31W N 32 52 W 18 13 29 25 45 13 66 61 93 58 124 92 160 64 201 66 247 07 296.91 1 60 2 57 3 56 3 86 , 3 33 2 95 3 54 3 16 2 64 3 8O 18 28 N 28 54 N 9 42 13 N 17 60 05 N 29 82 60 N 44 108 86 N 61 138 99 N 8O 173 73 N 102 211 82 N 127 253 52 N 154 02 W 29 24 W 45 17 W 66 O8 W 93 27 W 124 54 W 160 44 W 201 32 W 247 78 W 297 4 54 W 18 84 N 13 57 W 93 N 17 32 W 52 N 22 15 W 76 N 25 55 W 62 N 28 5 W 92 N 29 22 W 64 N 30 5 W 68 N 30 32 W 14 N 31 1 W 04 N 31 24 W COMPUTATION DATE: 19-APR-91 PAGE 2 BP EXPLORATION ¥-33 (32-28-11-13) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 09-APR-91 KELLY BUSHING ELEVATION: 88.18 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUT~ DEPTH DEPTH DEPTH DEG MIN DEG VERTICAL DOGLEG RECTANGULAR COORDI.NATE~ ~ORi- DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST./WES~ D~S~ , AZIMUT~ FEET DEG/IO0 FEET FEET FEE7 DEG 4000 O0 3930.04 3841 86 35 16 4100 4200 4300 4400 4500 4600 4700 4800 4900 O0 4010.50 3922 O0 4088.61 4000 O0 4164.67 4076 O0 4238.39 4150 O0 4309.58 4221 O0 4380.04 4291 O0 4450.68 4362 O0 4520.77 4432 N 32 21W 352.11 32 37 30 N 32 32 W 411.41 43 39 50 N 32 12 W 47'3.77 49 41 9 N 32 8 W 538.64 21 43 48 N 32 54 W 606.10 40 45 10 N 32 35 W 676.23 86 45 7 N 32 13 W 747.11 50 45 7 N 32 1 W 817.83 59 45 57 N 31 57 W 889.10 O0 4590.04 4501 86 46 6 N 31 51 ~ 961.17 2 68 1 66 1 79 1 92 2 13 0 64 0 40 0 56 0 87 0 24 300 13 N 184 48 W 352.30 N 31 35 W 350 402 457 514 573 633 693 754 815 23 N 216 .94 N 249 .94 N 284 87 N 320 92 N 358 .87 N 396 82 N 434 33 N 471 55 N 510 32 W 411.65 N 31 42 W 80 W 474.08 N 31 48 W 29 W 539.00 N 31 50 W 63 W 606.54 N 31 55 W 63 W 676.76 N 32 0 W 61 W 747.72 N 32 2 W 23 W 818.50 N 32 2 W 99 W 889.83 N 32 2 W 11 W 961.94 N 32 2 W 5000.00 4659 79 4571 61 45 18 5100.00 473O 5200.00 4800 5300.00 4869 5400.00 4939 5500.00 5008 5600.00 5077 5700.00 5147 5800.00 5216 5900.00 5286 30 4642 42 4712 73 4781 O2 485O 38 4920 87 4989 31 5059 64 5128 05 5197 12 45 12 24 45 51 55 46 15 84 46 3 20 46 4 69 45 59 13 46 3 46 46 13 87 45 48 N 31 39 W 1032 78 N 32 56 W 1103 63 N 33 26 W 1174 78 N 33 4 W 124673 N 33 0 W 1318 71 N 32 53 W 1390 N 32 28 W 1462 N 32 21W 1534 N 31 58 W 1606 N 32 1W 1678 64 45 32 33 26 1 17 1 56 0 9O 0 30 0 14 0 61 0 54 0 38 0 42 0 72 876 48 N 547 83 W 1033 60 N 32 0 W 936 996 1056 1116 1177 1237 1298 1359 1420 58 N 585 11 N 624 40 N 664 87 N 703 31 N 742 85 N 781 58 N 820 60 N 858 47 W 1104 70 W 1175 21W 1247 47 W 1319 69 W 1391 49 W 1463 08 W 1535 43 W 1607 69 N 896.51 W 1679 51 N 32 1W 79 N 32 6 W 86 N 32 10 W 95 N 32 12 W 99 N 32 15 W 90 N 32 16 W 85 N 32 16 W 92 N 32 16 W 91 N 32 15 W 6000.00 5356 02 5267 84 45 28 6100.00 5426 6200.00 5497 '6300.00 5569 6400 O0 5641 6500 O0 5714 6600 O0 5788 67O0 O0 5861 6800 O0 5933 6900 O0 6005 48 5338 30 44 52 59 5409 41 44 21 44 5481 26 43 52 70 5553 52 43 16 94 5626 76 42 48 13 5699.95 43 2 17 5772.99 43 18 63 5845.45 43 41 95 5917.77 43 43 N 32 12 W 1749 64 N 32 31 W 1820 53 N 32 37 W 1890 75 N 32 18 W 1960 22 N 33 7 W 2029 26 N 33 55 W 2097 18 N 34 1W 2165 15 N 34 7 W 2233 25 N 34 14 W 2301 96 N 34 11 W 2370.81 0 60 0 59 0 75 0 40 2 42 0 49 0 17 0 83 0 25 0 23 1481 19 N 934.50 W 1751 35 N 32 15 W 1541 1600 1659 1717 1774 1830 1887 1944 2001 15 N 972.44 W 1822 40 N 1010.30 W 1892 06 N 1047.67 W 1962 39 N 1084.77 W 2031 02 N 1122.56 W 2099 56 N 1160.61 W 2167 14 N 1198.87 W 2235 17 N 1237.55 W 2304 27 N 1276.39 W 2373 30 N 32 15 W 62 N 32 16 W 16 N 32 16 W 29 N 32 17 W 35 N 32 19 W 48 N 32 23 W 75 N 32 26 W 64 N 32 29 W 66 N 32 32 W 7000 O0 6078 27 5990.09 43 37 7100 7200 7300 7400 75O0 7600 7700 78OO 7900 O0 6150 O0 6223 O0 6295 O0 6368 O0 6441 O0 6514 O0 6588 O0 6662 O0 6736 63 6062.45 43 36 07 6134.89 43 33 60 6207.42 43 32 24 6280.06 43 17 15 6352.97 43 5 38 6426.20 42 37 22 6500.04 42 12 44 6574.26 42 0 77 6648.59 42 1 N 34 10 W 2439 66 N 34 3 W 2508 N 33 51W 2577 N 33 28 W 2645 N 33 13 W 2714 N 33 9 W 2782 N 33 11W 2850 N 32 56 W 2918 N 32 43 W 2985 N 32 10 W 3051 .49 23 92 52 83 81 12 04 86 0.36 2058.42 N 1315.17 W 2442 70 N 32 35 W 0.12 0.16 0.25 0.26 0.44 0.43 0.49 0.58 0.43 2115.60 N 1353.84 W 2511 2172.78 N 1392.34 W 2580 2230.07 N 1430.51 W 2649 2287.51 N 1468.25 W 2718 2344.78 N 1505.73 W 2786 2401.82 N 1542.93 W 2854 2458.32 N 1579.74 W 2922 2514.63 N 1616.08 W 2989 2571.09 N 1651.96 W 3056 70 N 32 37 W 61 N 32 39 W 45 N 32 41W 18- N 32 42 W 61 N 32 42 W 71 N 32 43 W 14 N 32 44 W 16 N 32 44 W 05 N 32 43 W COMPUTATION DATE: 19-APR-91 PAGE 3 BP EXPLORATION Y-33 (32-28-11-13) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 09-APR-91 KELLY BUSHING ELEVATION: 88.18 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTh FEET DEG/IO0 FEET FEET FEET DEG MIN 8000 O0 6811.18 6723 O0 41 51 8100 8200 8300 8400 8500 8600 8700 8800 8900 O0 6885.65 6797 O0 6959.74 6871 O0 7033.83 6945 O0 7108.53 7020 O0 7183.87 7095 O0 7259.43 7171 O0 7335.43 7247 O0 7411.25 7323 O0 7487.91 7399 47 41 58 56 42 25 65 41 55 35 41 23 69 41 0 25 40 44 25 40 38 07 40 29 73 39 21 N 31 44 W 3118.62 N 31 12 W 3185.33 N 30 34 W 3252.47 N 29 46 W 3319.63 N 29 13 W 3386.11 N 29 0 W 3451.87 N 30 6 W 3517.36 N 29 52 W 3582.36 N 28 10 W 3647.56 N 27 19 W 3711.71 0 30 0 32 0 52 0 43 0 64 0 68 0 97 1 18 1 48 1 34 2627 77 N 1687 31 W 3122 85 N 32 42 W 2684 2742 28OO 2858 2915 2972 3028 3085 70 N 1722 36 N 1756 42 N 1790 29 N 1823 78 N 1854 75 N 1887 94 N 1919 94 N 1951 3142,83 N 1981 15 W 3189 58 W 3256 34 W 3323 07 W 3390 99 W 3455 30 W 3521 97 W 3586 63 W 3651 39 W 3715 58 N 32 41 W 7O N 32 38 W 81 N 32 35 W 19 N 32 32 W 83 N 32 28 W 24 N 32 25 W 19 N 32 22 W 29 N 32 19 W 27 N 32 14 W 9000 O0 7565.89 7477.71 38 12 9100 9200 930O 9400 9500 9600 9700 98OO 9900 O0 7644.88 7556.70 37 18 O0 7725.09 7636.91 36 4 O0 7805.99 7717.81 36 4 O0 7886,23 7798.05 37 36 O0 7964.11 7875.93 40 12 O0 8038.80 7950.62 43 6 O0 8110.46 8022.28 45 18 O0 8180.33 8092.15 45 53 O0 8249.67 8161.49 46 15 N 26 46 W 3774 25 N 25 43 W 3835 N 24 57 W 3895 N 24 50 W 3953 N 23 39 W 4012 N 24 12 W 4075 N 25 42 W 4141 N 26 48 W 4211 N 27 22 W 4282 N 27 2 W 4354 47 O0 58 95 33 57 19 65 64 1 54 1 79 1 57 1 44 2 25 2 85 2 67 1 73 0 68 1 77 3198.54 N 2009.95 W 3777 64 N 32 9 W 3253.54 N 2037.07 W 3838 3307.59 N 2062.47 W 3897 3360.82 N 2087.38 W 3956 3415.33 N 2111.67 W 4015 3472.69 N 2137.00 W 4077 3532.96 N 2165.03 W 4143 3595.53 N 2195.85 W 4213 3659.21 N 2228.45 W 4284 3723.17 N 2261.62 W 4356 64 N 32 3 W 94 N 31 57 W 30 N 31 5t W 42 N 31 44 W 54 N 31 36 W 57 N 31 30 W O3 N 31 25 W 37 N 31 20 W 25 N 31 17 W 10000 O0 8318 07 8229 89 47 30 10100 10200 10300 10400 10500 10600 10700 10800 10900 O0 8384 O0 8447 O0 8507 O0 8564 O0 862O O0 8674 O0 8728 O0 8780 O0 8830 17 8295 16 8358 13 8418 32 8476 01 8531 79 8586 46 8640 33 8692 59 8742 99 49 49 98 52 5 95 54 3 14 56 2 83 56 3O 61 56 59 28 58 16 15 59 16 41 60 32 N 26 30 W 4427.48 N 27 23 W 4502.41 N 28 44 W 4580.04 N 29 15 W 4660.05 N 27 49 W 4742.05 N 26 17 W 4825.02 N 24 17 W 4908.43 N 22 59 W 4992.32 N 21 25 W 5077.08 N 20 12 W 5162.45 1 .90 3.13 3.02 2.42 1 57 251 1 22 1 53 2 02 2 24 3788 41 N 2294 25 W 4428 96 N 31 12 W 3855 3923 3993 4O65 4139 4215 4292 4371 4452 38 N 2328 86 N 2364 70 N 2403 70 N 2443 65 N 2480 30 N 2516 60 N 2550 74 N 2582 64 N 2613 07 W 4503 71W 4581 75 W 4661 02 W 4743 85 W 4826 56 W 4909 37 W 4993 71 W 5077 17 W 5162 76 N 31 8 W 32 N 31 5 W 29 N 31 3 W 24 N 31 0 W 11 N 30 56 W 36 N 30 50 W 08 N 30 43 W 64 N 30 34 W 82 N 30 24 W 11000 O0 8878.71 8790.53 61 26 11100 O0 8927.03 8838.85 60 26 11200 O0 8975.56 8887.38 61 40 11300 O0 9022.03 8933.85 63 7 11400 O0 9065.94 8977.76 64 36 11500 O0 9107.72 9019.54 65 38 11600 O0 9148.97 9060.79 65 38 N 21 7 W 5248.99 N 22 58 W 5335.72 N 23 31 W 5422.60 N 23 21 W 5510.62 N 23 11 W 5599.88 N 23 14 W 5690.06 N 23 14 W 5780.57 1 11 1 51 1 44 2 20 1 48 0 O0 0 O0 4534.71 N 2643.98 W 5249.21 N 30 15 W 4615.95 N 2676 61 W 5335.84 N 30 6 W 4696.24 N 2711 20 W 5422.67 N 30 0 W 4777.46 N 2746 48 W 5510.65 N 29 54 W 4860.02 N 2781 88 W 5599.88 N 29 47 W 4943.42 N 2817 69 W 5690.06 N 29 41 W 5027.13 N 2853 62 W 5780.58 N 29 35 W COMPUTATION DATE: 19-APR-91 PAGE 4 BP EXPLORATION Y-33 (32-28-11-13) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 09-APR-91 KELLY BUSHING ELEVATION: 88.18 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 1000 FEET OF MEASURED DEPTH TRUE SUB-SEA COURSE MEASURED VERTZCAL VERTICAL DEVIATION AZIMUT~ DEPTH DEPTH DEPTH DEG MIN DEG VERTICAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMUTH FEET DEG/IO0 FEET FEET FEET DEG MIN 0 oo 1000 2000 3000 4000 5000 6000 7000 8000 9000 0 O0 -88 18 O0 999 O0 1999 O0 2999 O0 3930 oo 4659 O0 5356 O0 6078 O0 6811 oo 7565 99 911 97 1911 61 2911 04 3841 79 4571 02 5267 27 5990 18 6723 89 7477 0 0 N 0 0 E 81 0 4 N 0 34 E -1 79 0 56 N 21 38 W 1 43 5 8 N 22 26 W 18 86 35 16 N 32 21 W 352 61 45 18 N 31 39 W 1032 84 45 28 N 32 12 W 1749 09 43 37 N 34 10 W 2439 O0 41 51 N 31 44 W 3118 71 38 12 N 26 46 W 3774 0 O0 95 15 13 11 78 6,4 66 62 25 0 O0 0 04 091 1 60 2 68 1 17 0 6o 0 36 0 3O 1 54 0 O0 N 2 0 18 300 876 1481 2058 2627 3198 54 S 0 76 N 0 28 N 4 13 N 184 48 N 547 19 N 934 42 N 1315 77 N 1687 54 N 2009 50 W 2 99 W 1 54 W 18 48 W 352 83 W 1033 50 W 1751 17 W 2442 31W 3122 95 W 3777 0 O0 E 0 O0 N 0 0 E 59 S 11 12 W 24 N 52 32 W 84 N 13 57 W 3O N 31 35 W 60 N 32 0 W 35 N 32 15 W 70 N 32 35 W 85 N 32 42 W 64 N 32 9 W 10000.00 8318.07 8229.89 47 30 11000.00 8878.71 8790.53 61 26 11600.00 9148.97 9060.79 65 38 N 26 30 W 4427.48 N 21 7 W 5248.99 N 23 14 W 5780.57 1 .90 1.11 0.00 3788.41 N 2294.25 W 4428.96 N 31 12 W 4534.71 N 2643.98 W 5249.21 N 30 15 W 5027.13 N 2853.62 W 5780.58 N 29 35 W BP EXPLORATION Y-33 (32-28-11-13) PRUDHOE BAY NORTH SLOPE, ALASKA TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZ~MUTP DEPTH DEPTH DEPTH DEG MIN DEG MIN 0 O0 88 18 188 18 288 18 388 18 488 18 588 18 688 19 788 19 888 19 COMPUTATION DATE: 19-APR-91 PAGE 5 DATE OF SURVEY: 09-APR-91 KELLY BUSHING ELEVATION: 88.18 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH VERTICAL DOGLEG RECTANGULAR COORDINATES HOR!Z. DEPARTURE SECTION SEVERITY NORTH/SOUT~ EAST/WEST DIST. AZIMUTH 0 O0 -88 18 18 0 O0 18 100 O0 18 200 O0 18 3O0 O0 18 400 O0 18 5O0 O0 18 600 O0 18 700 O0 18 80O O0 0 0 N 0 0 E 0 6 S 21 23 w 0 5 S 27 35 W 0 12 S 12 39 W 0 15 S 15 33 W 0 20 S 18 58 w 0 21 S 18 44 W 0 13 S 1 35 E 0 2 S 46 47 W 0 5 S 59 46 E 88 188 288 388 488 588 688 788 888 0 5 N 13 38 E 0 3 S 86 43 E 0 4 N 421 W 0 2 N 46 18 E 0 5 S 49 17 E 0 7 S 22 39 E 0 3 S 54 59 E 0 13 N 3 34 E 0 27 N 1 51 W 0 50 N 23 24 W FEET DEG/IO0 FEET FEET FEET DEG MIN 988 19 988.18 900.00 1088 19 1088.18 1000.00 1188 19 1188.18 1100.00 1288 19 1288.18 1200.00 1388 19 1388.18 1300.00 1488 19 1488.18 1400.00 1588 19 1588.18 1500.00 1688.19 1688.18 1600.00 1788.19 1788.18 1700.00 1888.19 1888.18 1800.00 1 0 22 2088 23 2188 24 2288 25 2388 26 2488 26 2588 26 2688 26 2788 29 2888 18 2000 18 2100 18 2200 18 230O 18 240O 18 2500 18 260O 18 2700 18 280O O0 0 57 O0 0 51 O0 0 43 O0 0 42 O0 0 25 O0 0 20 O0 0 15 O0 0 22 O0 2 29 N 23 32 W N 15 22 W N 341 W N 2 37 W N 5 29 W N 13 10 E N 14 33 E N 2 2 E N 10 34 E N 16 16 W 0 O0 -0 08 -0 16 -0 32 -0 59 -0 94 -l 33 -1 75 -1 89 -1 96 1988 21 1988 18 1900 oo 2088 2188 2288 2388 2488 2588 2688 2788 2888 12 3088.18 3000 33 3188 18 3100 64 3288 18 3200 44 3388 18 3300 75 3488 18 3400 97 3588 18 3500 02 3688 18 3600 04 3788 18 3700 26 3888 18 3800 -1 .97 -1 .95 -1 .89 -1 .87 -1 .88 -1 .95 -2.16 -2.22 -1 .79 -0.77 0.95 2.48 3.95 5.34 6.49 7.31 7.77 8.19 8.56 10.49 4 57 N 22 32 W O0 7 17 N 24 56 W O0 10 22 N 33 29 W O0 13 48 N 33 37 W O0 16 56 N 33 29 W O0 19 29 N 32 57 W O0 22 57 N 31 57 W O0 26 20 N 32 58 W 00 29 15 N 33 36 W 00 33 32 N 32 27 W 323 2988 53 2988.18 2900 O0 3O89 3190 3292 3396 3501 3608 3719 3832 3949 17 12 27 86 43 38 64 85 92 56 125 50 164 10 209 94 262 48 47 0 O0 0 O0 0 O0 0 oo 0 O0 0 O0 0 oo 0 25 0 O0 0 19 0 18 0 O0 0 O0 0 04 0 35 0 23 0 18 0 44 0 39 t 01 0 33 0 22 0 36 0 16 0 28 0 O0 0 oo 0 32 0 45 1 49 1 05 1 84 3 15 3 59 3 29 3 06 3 22 2 52 2 99 3 28 0 O0 N 0 ll S 0 23 S 0 42 S 0 78 S 1 26 S 1 83 S 2 38 S 2 53 S 2 62 S 0 O0 E 0 04 W 0 07 W 0 10 W 0 18 W 0 31 W 0 52 W 0 65 W 0 62 W 0 63 W 0 O0 N 0 0 E 0 12 S t9 20 W 0 24 S 16 9 W 0 43 S 12 40 W 0 80 S 12 44 W 1 3O S 14 4 W 1 91 S 15 53 W 2.47 S 15 16 W 2.60 S 13 46 W 2.69 S 13 34 W 2 55 S 2 52 S 241 S 2 38 S 2 38 S 2 42 S 2 55 S 2 52 S 2 04 S 1 05 S O.5O W 0.48 W 0.42 W 0.40 W 0.38 W 0.30 W 0.13 W 0.05 E 0.03 E 0.29 W 2.60 S ll 11 W 2.56 S lO 50 W 2.45 S 9 48 W 2.41 S 9 33 W 2.41 S 9 4 W 2.44 S 7 1 W 2.56 S 2 50 W 2.52 S 1 6 E 2.04 S 0 58 E 1.09 S 15 17 W 0 57 N 2 09 N 3 64 N 5 15 N 6 45 N 741 N 8 01 N 8 55 N 9 02 N 11 05 N 0 91 w 1 33 w 1 60 w 1 74 w 1 79 w 1 76 w 1 64 w 1 55 w 1 47 w 1 79 w 1 08 N 57 49 W 2 3 5 6 7 8 8 9 11 48 N 32 23 W 97 N 23 46 W 44 N 18 42 W 70 N 15 29 W 61 N 13 23 W 17 N 11 36 W 69 N 10 15 W 14 N 9 15 W 20 N 9 12 W 17 34 N 27 40 58 81 109 141 180 224 275 4.15 W 27 N 8.41W 28 66 N 16.27 W 43 58 N 28.20 W 65 74 N 43.51W 92 35 N 61.58 W 125 93 N 82.38 W 164 70 N 106.92 W 209 68 N 135.85 W 262 92 N 169.13 W 323 17 84 N 13 28 W 54 N 17 9 W 79 N 21 48 W O1 N 25 42 W 60 N 28 2 W 50 N 29 23 W 10 N 3O 8 W 97 N 30 37 W 56 N 31 10 W 63 N 31 30 W COMPUTATION DATE: 19-APR-91 PAGE 6 BP EXPLORATION Y-33 (32-28-11-13) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 09-APR-91 KELLY BUSHING ELEVATION: 88.18 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN VERTICAL DOGLEG RECTANGULAR COORDINATES HORZZ. DEPARTURE SECTION SEVERITY NORTH/SOUTH EAST/WEST DIST. AZIMO]~ FEET DEG/IO0 FEET FEET FEET DEG MIN 4071.96 3988 18 3900,00 36 56 4199.44 4088 4331.42 4188 4469.72 4288 4611.54 4388 4753.32 4488 4897.31 4588 5040.28 4688 5182.44 4788 5326.66 4888 18 4000 18 4100 18 4200 18 4300 18 4400 18 4500 18 4600 18 4700 18 4800 O0 39 50 O0 41 56 O0 44 56 O0 45 5 O0 45 30 O0 46 7 O0 45 7 O0 45 41 O0 46 11 N 32 31 W 394 46 · N 32 12 W 473 N 32 22 W 559 N 32 43 W 654 N 32 12 W 755 N 31 59 W 855 N 31 52 W 959 N 3! 47 W 1061 N 33 30 W 1162 N 33 1W 1265 41 45 82 28 71 23 34 21 95 2.39 1 .81 3,18 1 .11 0.45 0.88 0.27 0.76 0.96 0.37 335 93 N 207 20 W 394 69 N 31 40 W 402 475 555 640 725 813 900 985 1072 63 N 249 56 N 295 88 N 347 79 N 400 97 N 454 90 N 509 80 N 562 60 N 617 54 N 674 61 W 473 40 W 559 07 W 655 97 W 755 31W 856 O9 W 960 84 W 1062 76 W 1163 7O W 1267 72 N 31 48 W 84 N 31 51W 33 N 31 59 W 90 N 32 2 W 41 N 32 2 W O0 N 32 2 W 18 N 32 0 W 20 N 32 5 W 11 N 32 10 w 5470.87 4988 18 4900 O0 46 8 5614 84 5088 18 5000 5758 90 5188 18 5100 5903 06 5288 18 5200 6045 78 5388 18 5300 6186 83 5488 18 5400 6326 O0 5588 18 5500 6463 54 5688.18 5600 6600 07 5788.18 5700 6737.20 5888.18 5800.00 43 33 N 32 59 W 1369.68 O0 45 59 N 32 27 W 1473.11 O0 46 8 N 32 8 W 1576.70 O0 45 47 N 32 2 W 1680.45 O0 45 16 N 32 18 W 1782.20 O0 44 28 N 32 36 W 1881.55 O0 43 55 N 32 13 W 1978.23 O0 42 47 N 33 54 W 2072.48 O0 43 2 N 34 1 W 2165.20 N 34 7 W 2258.76 0 26 0 52 0 49 0 71 0 74 0,97 0 13 0 63 0 17 0 51 1159 69 N 731 27 W 1371.00 N 32 14 W 1246 1334 1422 1508 1592 1674 1753 1830 1908 85 N 787 46 N 842 54 N 897 76 N 951 64 N 1005 31N 1057 46 N 1108 60 N 1160 32 N 1213.21 W 2261 21 W 1474.57 N 32 16 W 70 W 1578.27 N 32 16 W 67 W 1682.09 N 32 15 W 88 W 1783 93 N 32 15 W 33 W 1883 40 N 32 16 W 29 W 1980 19 N 32 16 W 74 W 2074 60 N 32 18 W 64 W 2167 53 N 32 23 W 32 N 32 27 W 6875.41 5988 18 5900 O0 43 41 7013.69 6O88 7151.85 6188 7289.77 6288 7427.39 6388 7564.32 6488 7699.94 6588 7834.62 6688 7969.11 6788 18 6000 18 6100 18 6200 18 6300 18 6400 18 6500 18 6600 18 670O 8103.41 6888.18 6800 O0 43 39 O0 43 35 O0 43 31 O0 43 15 O0 42 53 O0 42 12 O0 41 57 O0 41 52 OO 41 59 N 34 14 w 2353 87 N 34 7 W 2449 N 33 57 W 2544 N 33 31W 2638 N 33 14 W 2733 N 33 5 W 2826 N 32 56 W 2918 N 32 31W 3008 N 31 53 W 3098 N 31 11W 3187 08 89 25 63 O8 17 02 61 0 19 0 44 0 17 031 0 35 1 11 0 49 0 20 0 45 0 38 1987.22 N 1266.85 W 2356.68 N 32 31 W 2066.24 N 1320.47 W 2452.14 N 32 35 W 2145.23 N 1373.83 W 2547.44 N 32 38 W 2224.20 N 1426.62 W 2642.40 N 32 41 W 2303.22 N 1478.54 W 2736.95 N 32 42 W 2381.54 N 1529.69 W 2830.49 N 32 43 W 2458.28 N 1579.72 W 2922.10 N 32 44 W 2534.13 N 1628.57 W 3012.32 N 32 44 W 2610.26 N 1676.45 W 3102.24 N 32 43 W 2686.66 N 1723.33 W 3191.87 N 32 41 W 8238 49 6988 18 6900 O0 42 17 8372 8505 8637 8769 8900 9028 9154 9277 9402 84 7088 71 7188 86 7288 62 7388 34 7488 32 7588 18 7688 97 7788 46 7888 18 7000 18 7100 18 7200 18 7300 18 7400 18 7500 18 7600 18 7700 18 7800 O0 41 32 O0 41 O0 40 28 O0 40 44 O0 39 21 O0 37 58 O0 36 37 O0 36 5 O0 37 39 N 30 18 W 3278 40 N 29 23 W 3368 13 N 29 1W 3455 62 N 30 19 W 3542 O0 N 28 44 W 3627 79 N 27 19 W 3711 93 N 26 27 W 3791 69 N 25 2 W 3867 93 N 25 ll W 3940 65 N 23 40 W 4014,45 1 O5 0 76 0 77 0 66 1 38 1 35 0 66 1 lO 0 35 2 25 2764 72 N 1769.72 W 3282 62 N 32 37 W 2842 2919 2994 3068 3143 3214 3282 3349 3416 61 N 1814 27 W 3372 O6 N 1856 O4 N 1899 56 N 1942 02 N 1981 15 N 2017 96 N 2051 06 N 2081 71 N 2112 80 W 3459 70 W 3545 22 W 3631 49 W 3715 77 W 3795 O1W 3870 91W 3943 27 W 4016 24 N 32 33 W 57 N 32 28 W 86 N 32 24 W 56 N 32 20 W 49 N 32 14 W 02 N 32 7 W 98 N 32 0 W 42 N 31 52 W 91 N 31 44 W COMPUTATION DATE: 19-APR-91 PAGE 7 BP EXPLORATION Y-33 (32-28-11-13) PRUDHOE BAY NORTH SLOPE, ALASKA DATE OF SURVEY: 09-APR-91 KELLY BUSHING ELEVATION: 88.18 FT ENGINEER: K. PORTER INTERPOLATED VALUES FOR EVEN 100 FEET OF SUB-SEA DEPTH TRUE SUB-SEA COURSE VERTZCAL DOGLEG RECTANGULAR COORDINATES HORIZ. DEPARTURE MEASURED VERTICAL VERTICAL DEVIATION AZIMUTH SECTION SEVERITY NORTH/SOUTH EAST/WES7 DIST. AZIMUTH DEPTH DEPTH DEPTH DEG MIN DEG MIN FEET DEG/IO0 FEET FEET FEET DEG 9531.71 7988 18 7900 O0 41 6 9668.51 8088 9811.28 8188 9956.02 8288 10106.23 8388 10267.95 8488 10442.77 8588 10624.64 8688 10815.37 8788 11019.83 8888 18 8000 O0 44 42 18 8100 O0 45 54 18 8200 O0 46 54 18 8300 O0 49 58 18 8400 O0 53 28 18 8500.00 56 6 18 8600.00 57 9 18 8700.00 59 27 18 8800.00 61 30 N 24 38 W 4095 88 N 26 25 W 4188 N 27 25 W 4290 N 26 26 W 4395 N 27 30 W 4507 N 29 24 W 4634 N 27 14 W 4777 N 23 58 W 4929 N 21 8 W 5090 N 21 18 W 5266 96 74 27 17 21 52 01 16 23 3 07 2 43 0 67 0 89 3 O0 1 28 1 33 1 28 2 06 0 98 3491 49 N 2145 52 W 4098.02 N 31 34 W 3575 3666 3759 3859 3971 4097 4234 4384 455O 63 N 2185 40 N 2232 53 N 2279 61N 2330 17 N 2391 18 N 2459 18 N 2525 05 N 2587 96 N 265O 89 W 4190 85 N 31 26 W 17 W 4292 45 N 31 20 W 88 W 4396 8t N 31 14 W 27 W 4508 52 N 31 7 W 09 W 4635 46 N 31 3 W 42 W 4778 66 N 30 59 W O0 W 4929.90 N 30 49 W 52 W 5090.70 N 30 33 W 28 W 5266.42 N 30 13 W 11226.73 8988.18 8900.00 62 0 11452.67 9088.18 9000.00 65 27 11600.00 9148.97 9060.79 65 38 N 23 34 W 5446.03 N 23 13 W 5647.32 N 23 14 W 5780.57 1 .04 0.68 0.00 4717.85 N 2720.61 W 5446.08 N 29 58 W 4903,90 N 2800.70 W 5647.32 N 29 44 W 5027.13 N 2853.62 W 5780.58 N 29 35 W SCHLUMBERGER O ~ AEC T ~ ONAL SURVE Y COMPANY BP EXPLORATION WELL Y-98 (32-28-11-19) F I ELD PRUOHOE BAY COUNTRY USA RUN ONE DATE LO'OOEO 09 - APR - 91 REFERENCE 74Sll W/~LL: ¥-33 (32-28-11-13) ~-~. 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FH"'~ ....... f'"FFf"t'"f"~'"f'"~ ...... f''fm'~'''~m'mk'f''~'''f'''~ ........ ~'''?''f?l'm'f''f''k'~ .... : 7000 330. PROJECTION ON VERTICAL PLANE 330. - 1SO. SCALEO IN VERTICAL OEPTHS HORIZ SCALE = 1/1000 IN/FT B.P. EXPLORATION WELLHEAD LOCATION DATA 1) WELL: y-$3 FIELD: .... Prudb,oe Bay Unit 2) Well Head Location 1.311' from NQrth line 260' from WEST line Section 34 , T. 11 ..N, R 13 E, UPM X = .645.073.85 Y = 5,948~949.31 ASP 4 LAT = 7Q°16:.04.565'' N, LONG = 1.48°49'~6.608" W 3) Local Benchmark Elevation Mon. Y-4. 50.19 .Ft. AMSL 4) Top Edge of Cellar 50.03 AT N.E, C0R, Ft. AMSL 5) Kelly Bushing to Base Flange* 36.40 38.15 Ft. AMSL 6) Kelly Bushing to Ground Level* Ft. AMSL 7) Base Flange Elevation 51.78 88.18 Ft. AMSL 8) Kelly Bushing Elevation Ft. AMSL *Measured by Drilling Foreman NOTES: 1) The surveyor should fill in Items 2, 3, and 4. 2) The completed form should be returned to Drilling Dept for distribution. CIRCULATION: North Slope Production Engineering - 1 ~--~~"' ~'.~%% Rese~oir Engineering O~rations (MB9-2) - 1 North Slope - to Rig .... ~ for Posting - 1 ~ .... -~-,~.. ........ ~.ff...% Well Records (~2-1) - 11 Well Files (~12-1) - 1 ~.~~-~ ..... ~'~":~'~ ~FEB.UARY O5. 1991 Date AOGCC GEOLOGICAL MATERIALS INVENTORY LIST PERMIT # ......... ~[ - ~ WELL NAME D,~L~ COMPLETION DATE /'~ I./~ Ic~l CO. CONTACT Cl~'~'~k'°ff or list data as it is recciv'~d.*li'st received date for 407. if not required list as NFl ""~Z I * v/a, 'l~ ~ 'drilling histo*" ~ '"SO~cV ~ ! ~ell tests O ! core ~escrirti0q~ei corc~ int~a~S core analysis, O~ ,, d~ ditch inte~als d,iuital data ........ ~~ .......... , .... q~~ o~.... LoG TYPE "' RUN ' iNTEP,.VALS SCALE NO. , (to thenearest foot] .... [!nchl100'], ....~]~... C--6, Z ................. t..I o~.o -. ~t,-.t~:~ 5 . ~ , C~-~,, .......... ~ ~ ~~--~t ~o."7 i 6) ~~l~lo~ I ,, ,,,,, , ,,,,l~~-I~~ ,, ~ ,,, I II I I II I I Iltl I IIII I I II I I IIII IIIIII11111111 II IIIII I I I I I II I I ~3i " ....................................... iai ......................... I ILL I IIIL __1 .... t ul iii . ................................. , ,, , [ II I Illl AOGCC SEPIA/BLUEUNE LOG INVENTORY PEflUlT it' ~/-.~_(~ ...... WELL NAME P 0 0 Y- ~ 0 COMPLETION DATE -~o.q type ~rccCivcd *rccic¥cd' date run # comments DII_/SFL DLL yes no .......... HHCISL yes no BHCIAC LSS yes no 'SSS yes no CNFD yes no S;HDT yes no -CYi~ER yes no LOOK FMS yes no ,, iviL yes no "" / ..... CET ~ no '~"/~ ~/' / ,, RFT yes no ~YnO ~> "" ~, ~_l. ~/ P,~,~~~ ~o~ ~-~ I yes no , MUD yes no ~ yes no , , CORE yes no CORED INTERVALS RECOVERED COMMENTS ~ if data is required BP EXPLORATION TO: DISTRIBUTION BP Exploration (Alaska) Inc. 900 East Benson Boulevard RO. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 ~ ~, ~,,\ ".:.~ ~ ,j'~,, .... '~ Date: 05/0~91 FROM: SUBJECT: Information Control Well Records LR2-1 ~IP (~A~ED, HOLE FINALS Enclosed is your copy of the matedai listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. H-26 N-01 ~ ~-..,,,3~--P-11 ~{ ~-.. 1'3'P-12 ~ 1- .30TM z-3 PERF 04/28/91 #1 9400-9981 SCH PERF 04/26/91 #1 8300-8960 SCH PERF 04/23/91 #1 9190-9810 SCH PERF 04/24/91 #1 8950-9621 SCH PRODUCTION LOG 04/27/91 #1 10750-11344 SCH PERF 04/28/91 #1 10050-11200 SCH # Distribution: ARCO CHEVRON EXXON GEOSCIENCES MOBIL PHILLIPS RESERVOIR STATE OF ALASKA ARCHIVES BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: DISTRIBUTION Date :04/22/91 T#:82346 FROM' SUBJECT: Information Control Well Records LR2-1 BP CASED HOLE FINALS Enclosed is your copy of the matedal listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. Y-33 Perf 04/12/91 #1 10450-11508 Sch 5" Distribution: ARCO CHEVRON EXXON GEOSCIENCES MOBIL PHILLIPS RESERVOIR STATE OF ALASKA ARCHIVES BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561.5111 TO: DISTRIBUTION Date :04/12/91 T#:82305 FROM: SUBJECT: Information Control Well Records LR2-1 BP CASED HOLE FINALS Enclosed is your copy of the matedal listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. D-23 Completion 04/06/91 #1 10000-10478 Sch 5" F-30 TDT-P 04/09/91 #1 12040-12600 Sch 5" N-14 Completion 04/08/91 #1 8500-10104 Sch 5" N-16 Completion 04/07/91 #1 9110-10224 Sch 5" P-13 Per/ 04/07/91 #1 9040-9345 Sch 5" Y-30 Perf 04/09/91 #1 8690-9435 Sch 5" Y-33 CBT 04/08/91 #1 10630-11483 S ch 5" Y-33 CET 04/08/91 #1 10630-11507 Sch 5" Y-33 Digtial CE-'[' 04/08/91 #1 150-10630 Sch 5" Distribution: ARCO CHEVRON EXXON GEOSCIENCES MOBIL PHILLIPS RESERVOIR STATE OF ALASKA ARCHIVES RECEIVED 4PR I 5 1991 Alaska Oil & Gas Cons. C°rnnliSSion Anchorage BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: DISTRIBUTION Date: 04/01/91 T#:82291 FROM: SUBJECT: Information Control Well Records LR2-1 BP CASED HOLE FINALS Enclosed is your copy of the matedal listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. LEAK DET 03/26/91 #1 0.0-10600 SCH 5" Distribution: ARCO CHEVRON EXXON GEOSCIENCES MOBIL PHILLIPS RESERVOIR STATE OF ALASKA ARCHIVES BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 TO: ARCO DATE :03/27/91 EXXON T#: 82200 PHILLIPS STATE OF ALASKA ARCHIVES SYSTEM Tap. e & Transmittal On_ly BP MAGNETIC LIS TAPE & LISTING Enclosed is your copy of the material listed below. If you have any questions, please contact BP Well Records at (907) 564-4445. Y-33 ATLAS# 03/20/91 1600BPI 8780-11650 AP1#50-029-22144 TAPE POS.#07673 Information Control Well Records LR 2-1 J. Dietz/S. McCum/ TO: THRU: MEMORANL)UM State of Alaska ALASKA OIL AND GAS CONSERVATION COMMISSION Lonnie C. emi Commissioner DATE: March 15, 1991 FILE NO: HH315 - 3 TELEPHONE NO: SUBJECT: RIG/BOPE Inspection BPX PBU Y-33 Permit No. 91-30 Prudhoe Oil Pool FROM: Harold R. Hawkins Petroleum Inspector Friday March 9 199~: I inspected AUDI Rig 3 at BPX PBU Y- 33. I found no infractions. Targets missing on kill lines on previous inspections, have been installed. There were no failures with BOP equipment. Their last BOPE test was on 3/3/91. The co man was Everett Potter. The toolpusher was John Boehler. In summary: The RIG/BOPE inspection was very satisfactory on BPX PBU Y-33 Rig AUDI 3. Attachment. 02-00lA (Rev. 6/89) 20/11/MEMOl. PM3 STATE O~ ALASKA ~LASKA 01L AND GAS CONSERVAT I ON COMM I SS, ~,~ BOPE Walk-Thru Inspection Report OPERATION: Drlg J/ Wkvr Operator. Location: 'Sec Drlg 'contr Location (gen'l) ~(~~ ' I N CO~PL I ANC~ ~es n~ n/a A. DIVERTER 1. ( ) ( ) ( ) line sz & length 2. ( ) ( ) ( ) line corm & anchored 3. ( ) ( ) ( ) bifurcated & dwn wind 4. ( ) ( ) ( ) 90° targeted turns 5. ( ) ( ) ( ) vlvs: auto & simultaneous 6. ( ) ( ) ( ) annular pack-off 7. ( ) ( ) ( ) condition UIC Permit # ~/ UM Ri g# Well sign B. BOP STACK 1. (/) ( ) ( ) wellhead flg wkg press 2. (JJ) ( ) ( ) stack wkg press 3. (V~ ( ) ( ) annular preventer 4. iV') ( ) ( ) pipe rams s.(~ () 6, (~/ ( ) 7. (~). ( ) () 10. (~) () 11 : ( ) 12 () 13 ( ) 14 ( ) is. (~ () ( ) blind rams ( ) stack anchored ( ) chke/kill line sz ( ) 90° turns targeted (chke & kill ln) ( ) HCR vlvs (chke & kill) ( ) manual vlvs (chke & kill) ( ) connections (flgd, whd, clmpd) ( ) drl spool ( ) flow nipple ( ) flow monitor ( ) control lines fire protected 1. (u~) ( ) 2.(v) () 3. ((~ () ~. () 5.(~3 () 6.(~ () 7.(/) () C. CLOSING UNITS wkg press fluid level oprtg press press gauges sufficient vlvs regulator bypass 4-way vlvs (actuators) 8. (~) ( ) ( ) blind handle cover -9.I~) ( ) ( ) driller control panel 10. ( ) ( ) remote control panel RECORDS Date of last BOP inspection: Resulting failures: Failures not corrected& why:. Date corrections will be completed: BOP test & results properly entered on daily record? ~/~,~ / IN COMPL ,ANCn~a ~. n~o ii._.;,. ( ) ( ) 12 (v)/ ( ) ( ) 13(~') () () ftrewall nitrogen power source (back-up) condition (leaks, hoses, etc) 1. (~ ( ) 2.(~ () () 5 () () ? () D. MUD SYSTEM pit level floats installed flow rate sensors mud gas separator degasser separator bypass gas sensor chke In conn trip tank 2. (,,~_ 3.' (~. 4.(~ E. RIG FLOOR ( ) ( ) kelly cocks (upper,lower,IBOP) ( ) ( ) floor vlvs (dart vlv, ball vlv) ( ) ( ) kelly & floor vlv wrenches ( ) ( ) driller's console (flow monitor, flow rate indicator, pit level indicators, gauges) / S. iv')/ ( ) ()kill sheet up-to-date 6.iv) ( ) ( ) gas ~etection monitors (H-S & methane) 7. (~)~y ( ) ( ) hydr chke panel 8. iv/) ( ) ( ) chke manifold 2 () 3. ~ () ~.( () 5. ((~/, () 6. () 7. (~/ ( ) Date of last BOP test: F. MISC EQUIPMENT ( ) flare line ( ) vent line ( ) 90° turns targeted ( ) (dwn strm choke lns) ( ) reserve pit tankage ( ) personnel protective equip avail ( ) all drl site suprvs trained _for procedures ( ) H2S probes ( ) rig housekeeping Kill sheet current? C.0013 (rev 02/25/91) ALASKA OIL AND GAS CONSERVATION COMMISSION February 28, 1991 WALTER J. HIC, KEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 276-7542 Bill Kirton PBU Lead Engineer BP Exploration (Alaska) Inc. P. O' Box 196612 Anchorage, AK 99519-6612 Re: Y-33 BP Exploration (Alaska) Inc. Permit No. Y-33 Sur. Loc. 1310'SNL, 5019'WEL, Sec. 34, TllN, R13E Btmhole Loc. 1660'SNL, 2501'WEL, Sec. 28, TllN, R13E Dear Mr. Kirton: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does not exempt you from obtaining additional permits required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permitting determinations are made. The Commission will advise you of those BOPE tests that it wished to witness. Sincerely, ~askdaW~i~;t;an; cCohna~errm;antion Commission dlf/enclosures cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION PERMIT TO DRILL 20 AAC 25.005 la. Type of work Drill [] Redrilll-111b. Type of well. Exploratoryl-I Stratigraphic Test I-I Development Oil [] Re-Entry [] Deepen I-!I Service [] Development Gas [] Single Zone [] Multiple Zone[] 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool BP Exoloration KBE = 88' feet Prudhoe Bay Field/Prudhoe 3. Address 6. Property Designation Bay Pool P. O, Box 196612. Anchoraoe. Alaska 99519-6612 ADb 282~7 4. Location of well at surf-ace 7. Unit or property Name 11. Type Bond(see 2o Mc 25.o2s) 131q' SNL, 5019' WEL, SEC. 34, T11N, R13E Prudhoe Bay Unit At' top of productive interval 8. Well number Number 1859' SNL, 2389' WEL, SEC. 28, T11N, R13E Y-33 (32-28-11-13) 2S100302630-277 At total depth 9. Approximate spud date Amount 1660' SNL, 2501' WEL, SEC. 28, T11N, R13E February 28, 1991 $200,000.00 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) property line ADL 28284 feet Y-06 @2806Y24' feet 2560 11505'MD/9198'TVDfeet 16. To be completed for deviated wells 17. Anticipated pressure (see 20 AAC 25.035 (e)(2)) Kickoff depth 2aoo'feet Maximum hole an~lle 46.~ o Maximum sudace 3330 pslg At total depth (TVD) 8800¥4390 pslg 18. Casing program Setting Depth s~ze Specifications Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 20" Cond. 80' Surface 110' 110' 13-1/2" 10-3/4".. 45# L-80 Butt 2650' Surface 2680' 2680' 2924 cu ft Coldset II & III 9-7/8" 7-5/8" 29. 7# L-80 NSCC 10896' Surface 10926' 8797' 2630 cu ft Class G 6-3/4" 5-1/2" 17# L-80 FL4S 809' 10696' 8638' 11505' 9198' 173 cu fl Class G i'9. T° 'be completed for Redrill. Re-entry. and Deepen Operations. Present well condition summary Total depth: measured feet Plugs (measured) true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cemented Measured depth True Vertical depth Structural Conductor "~ Surface Intermediate Production Liner ~) ~ ~ ~'~ Perforation depth: truemeasuredvertical .~~ ~.,' . 20. Attachments Filing fee [] Property plat [] BOP Sketch [] Diverter Sketch [] D~;~"llth'g'-"[3-~ogram [] Drilling fluid program [] Time vs depth plot [] Refraction analysis [] Seabed report[] 20 AAC 25.050 requirements[] 21. I hereby ~ha, t th~,foregoing is true and correct to the best of my knowledge Signed~~'~-~'--- Title PBU Lead Engineer ~//.~ cr //~ ! Date ~ Commission Use Only Permit Number IAPI number IApproval date JSee cover letter ~'z/- ..~ 15 0- O.~. ff - ~ ~/' ~'~' I 0 2, / 2 8 / 9 '1 Ifor other requirements Conditions of approval Samples required [] Yes J~3'No Mud log required [] Yes .E~ No Hydrogen sulfide measures [] Yes ~ No Directional survey requ~re~ ~ Yes [] NO Required working pressure for BOPE []2M; 1-13M; J~L5M; 1-310M; I-I15M; Other; ~ ~ by order of Approve~_ _~.~,~(~~ Commissioner me commission Form 10-401 Rev.~r2=-l-~85 ~, i Submit AFE No. 125391 PROPOSED DRILLING AND COMPLETION WELL Y-33 [32-28-11-13] PBU PROGRAM Install and cement 80' of 20" conductor to surface. The Drilling fluid program will consist of an 8.5-9.5 ppg spud mud in the 13-1/2" hole, a 9-9.8 ppg water base mud in the 9-7/8" hole and a 8.9 ppg water base mud in the 6-3/4" hole. Drill 13-1/2" hole to 2700' MD and cement 10-3/4" 45# L-80 Buttress casing to s u rface. Install blowout prevention equipment consisting of 5000 psi W.P. pipe rams, blind rams, and annular preventer. Maximum possible bottomhole pressure is 4390 psi at 8800' TVDss based on original reservoir pressure. Maximum possible surface pressure is 3330 psi based on a gas column to surface from 8600' TVDss and an oil column to 8800' TVDss. Directionally drill 9-7/8" hole to the 7-5/8" casing point at the top of Sag River formation. Run 7-5/8" 29.7# L-80 NSCC casing to within 10' of 9-7/8" TD and cement with Class G cement around the 7-5/8" shoe. The annulus will be freeze protected by dry crude. Formation leak-off tests will be performed 10' below both 10-3/4" casing shoe and 7-5/8" casing shoe as per AAC 25.030. Directional drill 6-3/4" hole to TD. Run 5-1/2" Chrome liner from TD to 250' inside 7-5/8" casing shoe and cement using Class G cement. Clean out to 5-1/2" landing collar. Change over to NaCL completion fluid. Test casing and lap to 3000 psi. Run 7-5/8" production packer on chrome tubing. Set packer 50' above top of liner. A subsurface safety valve with dual control lines will be placed 100' below base of permafrost. Install and test Xmas tree. Displace tubing to diesel. Set and test packer. The well will be perforated after rig release. Fluids incidental to the drilling of a well will be pumped down the 7-5/8" x 10-3/4" annulus of the well. Tubing Size: Tailpipe Size: RIS 2/11/91 4-1/2", 12.6# 13Cr-80, TDS R-3 TBG with GLM's. 4-1/2" TAILPIPE 20" Conductor ,ELIMINARY WELL PLAN WELL Y-33 [32-28-11-13] PBU PROPOSED DEPTH BKB 110' Ball Valve 2100' 10-3/4" Casing Shoe 13-1/2" Open Hole 2680' 2700' 4-1/2" 12.6# 13Cr-80 TDS tubing with GLM's 7-5/8" Packer 10646' 5-1/2" Tieback Assembly 10696' 7-5/8" Shoe 9-7/8" Open Hole 5-1/2" 17# 13 Cr FL4S Liner 10926' 10936' ~- ¢-' ':- . .. 5-1/2" PBTD 5-1/2" Liner Shoe 6-3/4" Open Hole 11425' 11505' 11505' RIS 2/11/91 PRELIMINARY WELL PLAN Well: Y-33 AFE NUMBER: 1 2391 LOCATION: Surface: Target: T.D.: [32-28-11-13] PBU 1310' SNL, 5019' WEL, Sec. 34, T11N, R13E 1859' SNL, 2389' WEL, Sec. 28, T11N, R13E 1660'SNL, 2501'WEL, Sec. 28, T11N, R13E ESTIMATED START: February 28th 1991 OPR. DAYS TO COMPLETE: 22 CONTRACTOR: Alaska United #3 MAX ANGLE/SECT COURSE/KOP/BUILD RATE: 46.2°/N29.4°W/2800/2.5 Item TVDss MD(BKB) Mud Wt. 20" CONDUCTOR 10-3/4" SHOE BASE WEST SAK FORMATION IKRU-PBU 7-5/8" SHOE TOP SAG RIVER SANDSTONE TOP SADLEROCHIT TARGET TOTAL DEPTH 110 110 8.5 2592 268O 9.5 573O 662O 9.O 7550 925O 9.8 8709 10926 9.8 8716 10936 9.8 8824 11092 8.9 8891 11188 8.9 9110 11505 8.9 LOGGING PROGRAM: Open Hole - Record all logs on magnetic tape where applicable. 9-7/8" Hole: NONE 6-3/4" Hole: DIL/GR/BHC/CNL/SP. (Optional LDT, RFT). Cased Hole CBT/CET and Gyro after rig release. Perforate after rig release. RIS 2/11/91 BOP STACK CONFIGURATION 13 5/8", 5000 PSI WP TRIPLE RAM STACK ,, DRILLING RISER ANNULAR PREVENTER 2" KILL LINE MANUAL HYDRAULIC GATE GATE Pi PE RAM5 ! BLIND RAMS i DRILLING SPOOL Pl PE RAMS 4" CHOKE LINE HYDRAULIC MANUAL GATE GATE SUF,, ACE HOLE DIVERTER SYSTEM Two lines venting 90 deg. apart in directions that ensure safe down wind venting, and ex- tending to a point at least 100' from any potential source of ignition. 10" Full Opening Valves 35' or as required ...._ ! Dresser Sleeve 1. All pipe connections 150# ANSI Flanges or welded connections and secured to prevent movement. 10" Diverter Une 2. Manual 10" full opening valves mechanically connected to ensure that one valve is fail-safe open at all times. 3. All tums are 90 deg. and targeted. 10" Full opening bali valve wi Hydraulic Actuator Cellar 20" Diverter Spool w/10" Side Outlet MEM 1/3/90 1" = 5280' 0 1 2 3 (MILES) WELL No. Y-33 LAT. = 70°16'04.563" N LONG. = 148°49'36.608" W Y = 5,948,949.31 A.S.P. X = 645,073.85 ZONE 4 1,311' FROM NORTH LINE 260' FROM WEST LINE PADY33 I hereby certify that I am properly registered and licensed to practice land surveying in the State of Alaska, and that this plat represents a survey made by me or under my supervision, and that all dimensions and other details are correct. Date FEB. 06, 1991 LS No. 7335 Registered Land 'Surveyor 49th Keith A. McNeil No. LS 7335 WELL PAD WELL No. Y-53 ASBUILT LOCATED IN PROTRACTED SECTION 34, TOWNSHIP 11 NORTH, RANGE 13 EAST, UMIAT MEREDIAN, ALASKA SURVEYED FOR: B.P. EXPL A P.O. BOX 196612 ANCHORAGE, ALASKA 99519-6612 SURVEYED BY: ARCTIC SLOPE CONSULTING GROUP 301 DANNER STREET ANCHORAGE, ALASKA 99518 DRAWN BY: KMC 1DA'~--: 2/06/91 29 28 32 ~3 SECTION 55 28,L, 27 33 27 26 34 35 SECTION 34 32 33 5 4 T11N T1 ON 33 34 3 NO SCALE 34 35 3 2 PADY33X WELL No. Y-33 LOCATED IN PROTRAC"rED SECTION 54, TOWNSHIP 11 NORTH, RANGE 15 EAST, UMIAT MEREDIAN, ALASKA SURVEYED FOR: B.P. EXPLORATION P.O. BOX 196612 ANCHORAGE, ALASKA 99519-6612 SURVEYED BY: ARCTIC SLOPE CONSULTING GROUP ,301 DANNER STREET ANCHORAGE, ALASKA 99518 DRAWN BY;,KMC IDATF: 2/6/91 Ii-FEB-1991 12:53 _~4~DUA~47' [DRANO25]Y33_CLOSAP_SHORT. LIS; I --- Closest App?oach Anmigsis --- Date: ti-FEB-91 Time:- t~: 53122 ,_.e-_r_h Radius= 200 COURSE LINE ,, --Fo-r- pr_nposed--~el.1: - Y-33 ........ [32-28-11-13] Location = --Top Bottom W-E S-N TVD(S~S) 645075:-00 .... 5948950;00 ......... 88.00 642264.19 5953733.48 9006-00 .~ .... Note:---At-t--depths---in Feet-Below ½ei!g Bushing-(BEB) .............................................. ~ -Ctosest Approach ...................................................................... Vertical- !nte~se.ction WELL I DENT /PROPOSED\ /NEARBY\ CLOSEST /PROPOSED\ /NEARBY\ VERTICAL · TVD DEP ART TVD DEPART O I STANCE TVD DEPART TVD DEPART O ~ STANCE .. A0~9-i000400 P-53 NO COORDINATE POINTS WITHIN SPECIFIED SEARCH WINDOW ---A0~9-204 t.i-00 Y-3 32~6. 0 54. 3 330~. 7 5~. 5 2~1. A02~-~042300 , .... -Y---4 4652=0 ................... ~12.-0 ....... 4635=-7- .......... ~81~ 8 ................... 71=3 A0~-~0431 O0 Y-6 2806. 7 O. 1 279~. ~ 15. i ~4. 3 :':---A0~-~043600 Y-5 606. 8 O. 0 ~00. 0 5. 6 7~. A0~9-~051300 .... ~--~-1 28t8:.5 ............ 0."~ ....... 2814-:0 ............. t3:--t .................. 57%-8 A0~-2051301 Y--i 1RD I. 0 O, 0 O. 0 O. : ~A0~9-~051700 Y-I~ 36~4. 4 18~, 1 3685. I 27. 8 " A029-2056000 ....... Y--7 .............. 3274.7 · ~ .... -=05/=00 . Y-8 ~' 8 .... A0~9-2057900- . Y-9 ~.0 --- Y-10 ............... 1~0~.~ Y-I~ Y-I~ 401.~ Y-i7 ~0~9-2~57400 -- Y-~! ¥-~0 (- ~. 0 Y-~4 399.1 A029-~183200 Y-t4 A0£9-2!85700 Y-19 50. i 0 0 0 0 0 0 O 0 0 0 0 0 O 0 0.0 0.0 O.O . L 586. 5 " .. 69~. 2 3285.2 66. g 114.6 -- ===0.9. 86.6 =~. 7 0. o o.o 366. 5 1~00. 0 ...... 6.6 ........ 470, 5 .............. 2699.9 9.8 798.4 400.0 3. 7 727.7 2699.8 27.0 750.9 ~00. 0 O. a 401.4 !!00. O 7. ~ 508. i 300. 0 O. 9 620. 8 300. 0 O. ~ ~o~ ~ ~00. 0 2. a !81. ~ NO COORDINATE POINT'S W£THiN SPECIFIED SEARCH WINDOW 1807.7 O. 0 iE, O0. 0 7 7 7~6. S Y-~D ~ 9. 3 O. 0 _$~DUA--~7: [DRANO~5]Y~3_CLOSAD_SH~RT. LI~ ~ A ~ ~9-=~01900 Y-27 ( 307. 8 O. 0 SUMMARY 0.0 0.0 300. 0 O. 5 439..5 II--FEEl-1991 !2' 03 661.9 The mell which comes closest to the proposed well is: A0~9-20431 O0 Y-6 '-~oses~ mppromch distance = 24. 3 .... ~.t-~K--OFF---~o~-.this-run ........... = ...... 2800. c,- ~et ,. . _S45DUA247~ [DRANO25]Y33_CLOSAP_SHORT7. LIS.; 1 ll-FEB-1991 13~04 P~.age i Closest Approach Analgsis Date' 11-FEB-91 Time' i.3: 04:21 Search Radius= 200 7 DEGREE LEAD LINE For-p~oposed well' Y-33 [32-28-i1-!3] Location = W-E S-N TVD< SBS) .... Top ........... 645075. O0 5948950. O0 -88. O0 Bottom 641702, 18 59~3~55. 28 9006. O0 -Note: All depths in ~eet Below Ke!lg Bushin~ (BKB) WELL I DENT h: A029-2001000 ,-.~I I i ~ A029-204 i i00 Y-3 A0~9-2042300 . Closest Approach /PROPOSED\ /NEARBY\ TVD DEPART TVD DEPART Vertical lnteesection CLOSEST /PROPOSED% /NEARBY\ VERTICAL DISTANCE TVD DEPART TVD DEPART 5465.5 1761.1 5449.6 39.3 2583.3 7.4 0.0 0.0 0.0 293.5 ........... Y-4 ...................... 3881. 0 271; 4 ,, " A029-2043100 Y--6 2806. 7 O, 1 :i,,:___A029_2043600':-'- Y-5 606. 8 O. 0 2G A029-2051300 ----¥-i-i ............................. 2820. 0 ...... O~ 4 -2814:0 3861.6 ..... 374.5 ..... 112.7 2799.9 15.1 24.3 600,0 5.6 72.2 13. t ......... 579,- 7 0.0 586. 5 30.0 665. 0 70.2 109.2 A029-205I 30! Y-11RD I. 0 O. 0 O. 0 :':~ ---A02~--205i700 · Y-12 3870. 2 265. 5 3859. 4 A029-2056000 !i, ........... -Y-7 328~. 6 ~3.0 32~8.7 ~o2~-2o~72oo Y-8 2221. 8 O. 0 2220. 9 · - .... A029-2057900 ...... Y-9 1.0 0.0 0.0 A029-2058700 Y-i0 ........ 1202. 3 O. 0 1200. 0 A029-2063400 : Y-13 2702. 4 O. 0 2699. 9 : ---A029-209 t 600 Y--18 401. 4 O. 0 400. 0 _. A029-2092000 :. ---¥--t7- 2701. 2 O. 0 2699. 8 A029-2155800 Y--22 199. 8 O. 0 200. 0 ---A029--2 i 57400 Y-21 i 100. 5 0. 0 i i00. 0 A029-2 ! 58700 "-- .... Y-20 ( ...... 299. 0 O. 0 300. 0 A029-2i 59000 Y-23 299. 2 O. O 300. 0 A029-2160800 Y-24 399. 1 O. 0 400· 0 A029-2i 83200 : Y--14 A029-2185700 Y-i9 86. 6 ~_~3. 7 O. 0 366. 5 6, 6 470. 5 9. 8 798. 4 ~ 7 727. 7 27. O- -- 7,50: NO COORDINATE POINTS WITHIN SPECIFIED SEARCH WINDOW 4595.5 853.1 4575.8 564.1 702.2 0.4 401.4 7.5 508.1 0.9 620.8 0.5 291.7 2.4 181.2 Y-25 - 9. 3 O. 0 _S4SDUA247: [DRANO25]Y33_CLOSAP_SHORT7. LIS; 1 0.'0 O. 0 43~. 5 . . ll--FEI~-lg~;I 13' 04 - A02~-2201~00 :, v_n, :7 ( 307.8 O.n~ 300.0 0.5 661.9 SUMMARY The well which comes closest to the p~oposed well is: A029-2043i00 Y-6 · ciosest approach distance = 24.3 ~met .i ~GK--OF~-~o~-t.~i-s-run - 2800.-0 ,~eet- MUD WEIGHT WELL Y-33 CALCULATIONS (32-28-11-13) Mud Wt. (6-3/4" Hole): 8.9 ppg. P Sag River: P Sadlerochit: P Top Sadlerochit: 3900 psi. 3690 psi. at 8800' TVD SS (=8888' TVD BKB) 3698 psi. (gas grad. 0.12 psi/ft) (oil grad. 0.35 psi/ft) OB Sag River: OB Top Sadlerochit: Current GOC: 174 psi. 426 psi. Above Top of Sadlerochit 7-5/8" Casing Pt. Top Sag River Top Sadlerochit 8797' TVD BKB 88O4' TVD BKB 8912' TVD BKB Cement Calculations 10-3/4" CASING Measured Depth: Basis: Total Cement Vol: Lead Slurry Vol: Tail Slurry Vol: 7-5/8"CASING Measured Depth: Basis: Total Cement Vol: Lead Slurry Vol: Tail Slurry Vol: ,,5-1/2" LINER Measured Depth: Basis: Total Cement Vol: 2680' 3.0 x Annular volume (0.3637 cuft/ft) 2924 cuft 1868 cuft 973 Sx Cold Set III @ 1.92 cuft/Sk 1056 cuft 1100 Sx Cold Set II @ 0.96 cuft/Sk 10926' 90% Annular Vol. to 10-3/4" shoe +36 cuft (0.2148 cuft/ft) 1630 cuft 1480 cuft 747 Sx G+8% @ 1.98 cuft/Sk 150 cuft 130 Sx Neat G @ 1.152 cuft/Sk 10696' Hanger- 11505' Shoe 1.5 X Annular volume to 7-5/8" shoe + 100 cuft (0.0835 cuft/ft) 173 cuft 147 Sx Neat G at 1.175 cuft/Sk RIS 2/11/91 RIG 3 MUD SYSTEM ./ t~£~° ALASKA UNITED DRILLING INC. RIG 3 MUD SYSTF:M DAli October' 1987 ALASKA UNITED RIG NO. 3 MUD SOLIDS CONTROL EQUIPMENT 1 - Brandt Dual Tandem Shale Shaker 1 - Demco 6-12" Cone Shale Desander 1 - Demco 416H w/16 cones & (1) Demco 48H w/16 cones (Desiiter) 1- Tri~Flo Horizontal Vacuum Atmospheric Mud Degasser 1- 200 gpm Operating Capacity Centrifuge 1 9- Brandt MA5 Mud Mix Agitators 1- 125 bbl. Trip Tank 1- Recording drilling fluid pit level indicator with both visual and audio warning devices at driller's console 1- Drilling fluid flow sensor with readout at driller's console 1- Cavium Dewatering screen assembly CHECK LIST FOR NEW WELL PERMITS ITEM APPROVE DATE (1) Fee,, ~ ,2/~z.%,/~/ 1. (2) Lo,c" - /~/~'. ~./zS:./~/ (2 thru (8) (3) Admin /nr~ ~.v,/(~,2..';' ?'~/ 9. -(9 -thru 13) ~ 10. (10 and 13) 12. . 13. (4) Casg (14 thru 22) (23 thru 28) (6) OTHER · (2-9 thru 31) (6) Add: ~/.~,~/-&e-?/ Geology: En~ineerin~: Dwj LCS BEW ?c rev: 11/30/90 6.011 ! Company &: ~.'~.~_~,.z~'/'/ln,j Lease& Well No. ' YES NO REMARKS Is the permit fee attached .......................................... 2. Is well to be located in a defined pool ............................. 3. Is well located proper distance from property line .................. 4. Is well located proper distance from other wells .................... 5. Is sufficient undedicated acreage available in this pool 6. Is well to be deviated and is wellbore plat included ................ 7. Is operator the only affected party ................................. 8. Can permit be approved before fifteen-day wait ...................... 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. For 29. 30. 31. 32. Does operator have a bond in force .................................. Is a conservation order needed ...................................... Is administrative approval needed ................................... Is the lease number appropriate ..................................... Does the well have a unique name and number ......................... P Is conductor string provided ........................................ Will surface casing protect all zones reasonably expected to serve as an underground source of drinking water ..................... ~ Is enough cement used to circulate on conductor and surface ......... ~, Will cement tie in surface and intermediate or production strings ... ,~ Will cement cover all known productive horizons ..................... ~ Will all casing give adequate safety in collapse, tension and burst.. ,~ Is this well to be kicked off from an existing wellbore ............. Is old wellbore abandonment procedure included on 10-403 ............ Is adequate wellbore separation proposed ............................ -~ Is a diverter system required ....................................... Is the drilling fluid program schematic and list of equipment adequate~z~- Are necessary diagrams and descriptions of diverter and BOPE attached. Does BOPE have sufficient pressure rating - Test to ~~ psig .. Does the choke manifold comply w/API RP-53 (May 84) .................. Is the presence of H2S gas probable ................................. exploratory and Stratigraphic wells: Are data presented on potential overpressure zones? ................. Are seismic analysis data presented on shallow gas zones ............ If an offshore loc., are survey results of seabed conditions presented Additional requirements ............................................. IINITIAL GEO. UNIT ON/OFF POOL CLASS STATUS AREA NO. SHORE · /,1 / , / Additional Remarks: /_ ~z~ Z~w ~. wW~,'~ l / o ~ o Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information, of this nature is accumulated at the end of the file under APPENDIX.. .. No special'effort has been made to chronologically organize this category of information. PROGRAM% LISCAN REVISION: 5.2 PART NUMBER: W5790-MICRO Start of execution: Wed 27 MAR 91 1:57p **** REEL HF. ADER ****~ LIS 91/ 3/27 AWS 01 ql-3o **** TAPE HEADER **** LIS 91/ 3/27 01 qate J ...... '/ FILE # 1 LIS .001 **** FILE HEADER **** 1024 CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : Y- 33 (32-28-11-13) : PRUDHOE BAY : NORTH SLOPE : ALASKA 4PR ~, Alaska 0ii ~, Gas Cons., 4~chorage Commission * COMMENT RECORD * API NO. 50-029-22144 LOG DATE: 3/20/91 FILE = MAIN PASS: DIFL-BHC/AL-GR (10770 - 11650 FT.) * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME TAPE DEPTH UNIT : F 15 CURVES : NAME CODE SAMPLE# UNIT 1 AC 68 1 US/F 2 CHT 68 1 LBF 3 CILD 68 1 MMHO 4 CLSN 68 1 CPS 5 CN 68 1 % 6 CNC 68 1 % 7 CSSN 68 1 CPS 8 GR 68 1 AP I 9 RFOC 68 1 OHMM 10 RILD 68 1 OHMM 11 RILM 68 1 OHMM 12 SP 68 1 MV 13 SPD 68 1 F/MN 14 TEMP 68 1 DEGF 15 TTEN 68 1 LBF BYTES 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 * DATA RECORD DEPTH CN RILD TTEN 11650.000 -999.2500 -999.2500 -999.2500~ 11600.000 0.0000000E+00 5.633992 4648.422 11550.000 7.714131 4.267423 4853.234 11500°000 13.96390 2.657507 4844.273 11450.000 15.11854 9.247253 4824.254 11400.000 21o30078 3.579078 4806.359 11350.000 20.40309 10.28268 (TYPE# 0 ) AC CNC RILM -999.2500 -999.2500 -999.2500 67.07690 0o0000000E+00 7.477421 66.47752 12.09062 4.068034 75.65881 18.84320 2.682020 82.61543 20.03291 10.01915 91.25446 26.38342 3.743357 92.78549 25.48227 8.532406 966 BYTES * CHT CSSN SP -999.2500 ~999.2500 -999.2500 515.9136 100.0000 -29.01321 770.1807 351.2908 -23.55937 890.3010 293.9705 -25.13918 871.6055 280.2954 -35.77805 864.0854 240.9080 -31.28790 887.4351 239.0076 -34.60144 CILD GR SPD -999.2500 -999.2500 -999.2500 177.4940 0.0000000E+00 32.99670 234.3335 20.31313 33.56061 376.2925 26.34570 33.99661 108.1402 19.46024 33.99661 279.4016 24.04044 26.99730 97.25087 27.73344 27.99721 CLSN RFOC TEMP -999.2500 -999.2500 -999.2500 25.00000 7.737738 184.2335 290.7024 4.884905 186.1441 190.2361 3.600132 185.5961 174.9400 12.40829 185.2458 127.7786 3.977123 184.3288 129.4492 8.291224 183.2481 4'842. 898 11300.000 18.57054 14.37054 4870.883 11250.000 18.81725 13.93531 4893.492 11200.000 19.68661 14.71131 4941.824 11150.000 19.44260 16.53325 4992.547 11100.000 16.80061 8.008568 4979.863 11050.000 1.363005 76.62039 4972.152 11000.000 24.50082 10.42744 4972.812 10950.000 5.462413 23.79825 5045.527 10900.000 16.91916 9.186718 4777.645 10850.000 65.83656 6.959495 4817.641 10800.000 60.82927 0.2000000 3500.000 91.69806 23.59175 11.79519 87.87077 23.84621 10.12263 93.83908 24.74303 10.46136 82.08167 24.49129 13.76457 84.86121 21.76666 8.361361 50.65172 ~.352750 63.84167 69.63083 29.54102 9.393991 62.15102 9.563915 22.21150 82.15244 21.88889 9.229187 53.46191 69.30946 10000.00 50.00000 64.53555 0.2000000 932.4746 248.6111 -36.74164 980.4407 251.5225 -34.32903 1038.826 236.3827 -34.97217 1035.755 248.7990 -39.09967 1019.942 266.3730 -29.97173 965.6011 507.8503 -33.02451 999.9363 236.4786 -21.69136 1023.873 414.8347 -36.17729 849.7676 248.8074 -35.11810 917.1121 136.0422 36.81160 500.0000 137.4201 -80.00000 69.58682 26.41487 27.96150 71.76013 19.64890 27.55530 67.97491 24.24271 27.99721 60.48418 26.78474 27.99721 124.8663 39.05377 27.99721 13.05136 68.34137 14.99850 95.90079 313.9287 14.99850 42.01990 64.33365 13.99860 108.8528 60.18202 13.99860 143.6886 78.37523 13.99860 0.0000000E+00 82.02264 0.0000000E+00 140.8899 10.44525 182.2982 141.6426 10.68042 181.7458 130.2585 10.94654 180.1997 137.9267 12.32101 178.6832 158.2953 13.85727 177.1262 648.3357 284.5942 175.8204 117. 1182 14.41249 174.7837 387.2454 38.32889 173.3943 147.3689 9.646904 171.2436 42.40331 0.2110891 169.5792 44.28401 0.2000000 100.0000 TOTAL DATA RECORDS : 118 STARTING TAPE DEPTH = 11650.00 ENDING TAPE DEPTH = 10770.00 **** FILE TRAILER **** **** REEL HEADER **** LIS 91/ 3/27 AWS 01 **** TAPE HEADER **** LIS 91/ 3/27 01 FILE # 2 LIS .001 **** FILE HEADER **** 1024 CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : Y- 33 (32-28-11-13) : PRUDHOE BAY : NORTH SLOPE : ALASKA * COMMENT RECORD * FILE = REPEAT PASS: DIFL-BHC/AL-GR (10790 - 11610 FT.) * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME TAPE DEPTH UNIT : F 15 CURVES : NAME CODE S~AMPLE~ UNIT BYTES 1 AC 68 1 US/F 4 2 CHT 68 1 LBF 4 3 CILD 68 1 MMHO 4 ~4 CLSN 68 1 CPS 4 5 CN 6 CNC 7 CSSN 8 GR 9 RFOC 10 RILD 11 RILM 12 SP 13 SPD 14 TEMP 15 TTEN 68 1 % 4 68 1 % 4 68 1 CPS 4 68 1 API 4 68 1 OHMM 4 68 1 OHMM 4 68 1 OHMM 4 68 1 MV 4 68 1 F/M~ 4 68 1 DEGF 4 68 1 LBF 4 * DATA RECORD DEPTH CN RILD TTEN 11610.000 0.0000000E+00 5.614011 3785.489 11560.000 7.791792 4.632966 4795.730 11510.000 14.65975 2.331887 4941.418 11460.000 18.06541 7.250419 4948.426 11410.000 18.33499 4.482452 4981.852 11360.000 19.09659 7.192854 4932.719 11310.000 18.73352 14.49362 4965.047 11260.000 19.41295 14.71995 (TYPE# AC CNC RILM o) 50.00000 0.0000000E+00 7.465724 70.39760 12.17786 5.243218 76.71365 19.56015 2.334975 88.33890 23.07080 7.447161 88.05463 23.34882 4.555715 88.86627 24.13435 6.603081 88.41214 23.75986 11.13456 90.10655 24.46071 10.85158 966 BYTES * CHT CSSN SP 256.3247 100.0000 -31.38475 894.4473 352.2900 -30.96442 1066.268 299.6162 -31.80959 1054.589 250.7041 -37.17519 1130.715 257.9846 -36.11859 1046.111 236.8231 -36.44746 1099.319 244.3422 -40.18541 1164.319 247.7825 -41.36179 CILD GR SPD 178.1258 0.0000000E+00 29.23289 215.8446 19.91890 28.99710 428.8384 23.41876 28.99710 137.9231 25.56044 27.99721 223.0921 30.75223 27.99721 139.0269 26.78648 27.99721 68.99590 25.28514 27.99721 67.93503 22.43025 27.99721 CLSN RFOC TEMP 15.00000 7.732159 187.8168 290.4365 5.543828 190.3123 189.6590 2.932865 190.3277 143.9571 7.335625 189.8932 147.0959 4.583232 189.3178 132.4257 6.828947 188.1173 137.8932 11.35102 187.2191 137.4641 10.08782 186.3244 5675.762 11210.000 20.11060 16.78003 5071.633 11160.000 13.38197 22.58818 5002.465 11110.000 18.25676 13.98628 4994.797 11060.000 6.534430 36.90334 5007.391 11010.000 15.89390 20.69588 5017.430 10960.000 22.14827 10.34548 5036.582 10910.000 15.04194 9.871574 4835.461 10860.000 57.57887 6.686232 4807.250 10810.000 61.73863 0.2000000 3500.000 91.13348 25.18048 13.46219 71.26543 18.24374 27.50307 91.96989 23.26814 14.12447 59.71761 10.76613 34.57372 65.54593 20.83202 13.90063 73.85564 27.21962 11o10888 75.29089 19.95398 9.702585 61.71721 61.43669 10000.00 50.00000 65.40253 0.2000000 1077.720 244.3503 -37.27765 966.7151 308.7095 -45.43678 914.7336 254.7131 -24.54814 958.8184 394.9873 -27.78206 1052.382 282.4592 -12.45374 1056.131 236.3169 -29.67430 977.6790 291.5044 -35.49937 954.4468 132.1782 35.55229 500.0000 125.7306 -80.00000 59.59885 23.20909 28.99710 44.27094 45.31819 19.99800 71.50446 25.10930 18.99811 27.09782 82.90419 14.99850 48.31882 185.1285 14.99850 96.66057 102.7424 14.99850 101.3010 57.00261 14.99850 149.5611 91.66797 14.99850 0.0000000E+00 81.15384 0.0000000E+00 133.2795 12.19639 184.8239 203.6280 18.85390 182.6341 145.5297 11.40740 179.5230 347.1165 88.22980 177.2735 172.2624 11.02039 173.8909 122.9806 11.34745 171.9706 182.3608 9.160257 170.3174 43.61369 0.2110590 167.7662 40.26192 0.2000000 100.0000 TOTAL DATA RECORDS : STARTING TAPE DEPTH = FILE TRAILER **** 110 11610.00 ENDING TAPE DEPTH = 10790.00 **** REEL HEADER **** LIS 91/ 3/27 AWS 01 **** TAPE HEADER **** LIS 91/ 3/27 01 FILE # 3 LIS .001 **** FILE HEADER **** 1024 CN WN FN COUN STAT : BP EXPLORATION (ALASKA) : Y - 33 (32-28-1]-13) : PRUDHOE BAY : NORTH SLOPE : ALASKA * COMMENT RECORD * FILE = CASED HOLE CN/GR (8780 - 10950 FT.) * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME TAPE DEPTH UNIT : F 8 CURVES : NAME CODE SAMPLE# UNIT BYTES 1 CHT 68 1 LBF 4 2 CLSN 68 1 'CPS 4 3 CN 68 1 % 4 4 CNC 68 1 % 4 5 CSSN 68 1 CPS 4 6 GR 68 1 API 4 7 TEMP 68 1 DEGF 4 8 TTEN 68 1 LBF 4 * DATA RECORD (TYPE# 0) 1014 BYTES * DEPTH CSSN 10950.000 -999.2500 10900.000 100.0000 10850.000 139.8350 10800.000 141.0954 10750.000 138.2077 10700.000 143.6890 10650.000 136.9244 10600.000 126.2202 10550.000 133.2971 10500.000 131.3529 10450.000 127.7176 10400.000 133.7143 10350.000 122.8806 10300.000 159.2128 10250.000 164.2168 10200.000 155.4460 10150.000 144.4491 10100.000 159.5094 10050.000 139.5101 CHT GR -999.2500 -999.2500 976.7488 0.0000000E+00 904.1460 79.79041 886.6904 86.42699 898.5825 88.80046 916.2139 74.62505 921.9697 84.09520 930.2817 84.01619 925.9543 81.59886 943.9690 83.66609 956.0742 83.94531 967.1904 81.59055 983.2112 76.35098 994.8638 58.82892 990.1343 50.75223 1020.909 60.72893 1021.372 57.97874 1044.634 59.27376 1062.919 63.74379 CLSN TEMP -999.2500 -999.2500 15.00000 169.5838 45.57010 167.5191 44.62080 165.1978 43.25940 163.8914 50.06691 161.9839 42.51691 160.9542 36.69650 159.2689 42.75290 157.9860 45.02681 157.2515 37.95331 156.1880 43.87212 155.0841 38.39401 154.9655 66.27480 154.3308 71.56310 153.3700 63.75510 152.8956 53.07761 152.5618 60.47791 152.1091 45.33160 152.0676 CN TTEN -999.2500 -999.2500 0.0000000E+00 4902.937 55.12083 4843.250 54.52345 4807.227 59.63158 4792.070 49.89867 4826.023 62.06262 4758.500 66.27814 4778.676 57.90671 4798.164 63.72507 4782.004 74.80167 4717.480 58.87971 4759.969 63.59489 4745.355 36.78703 4728.629 33.49985 4707.687 36.77678 4747.508 42.72607 4710.773 37.95781 4739.391 47.35866 4750.098 CNC -999.2500 0.0000000E+00 48.35789 48.47948 52.56339 43.99165 54.69687 58.42627 51.07430 56. 12688 66.02364 51.83255 55.97766 33.07315 30.13857 32.97449 38.10258 34.03947 42.08731 100~00. 000 127.3345 9950.000 119.4229 9900.000 123.9605 9850.000 126.4226 9800.000 122.7679 9750.000 123.1599 9700.000 122.4623 9650.000 130.0867 9600.000 146.1474 9550.000 141.6184 9500.000 129.6444 9450.000 114.2380 9400.000 114.6409 9350.000 124.9991 9300.000 119.8235 9250.000 124.1283 9200.000 116.8283 9150.000 103.3553 9100.000 122.7345 9050.000 117.8407 1072.105 76.80833 1084.695 74.76942 1084.640 75.23758 1096.735 71.15091 1071.499 71.77594 1096.571· 73.09247 1077.245 64.52139 1088.788 70.14503 1101.149 49.12605 1117.398 45 ~ .,,390 1124.729 51.94005 1148.037 64.88647 1177.841 66.92978 1160.544 64.96863 1157.229 70.16910 1174.847 64,12325 1164.796 72.45917 1202.765 59.90202 1172.742 66.05342 1178.639 67.42119 40.91762 151.7527 42.09181 · 150. 7329 38.59950 149.9962 36.43980 148.9980 38.50452 148.2566 37.06799 147.7622 37.36891 147.2087 43.80611 147.0830 53.01360 145.7508 48.79269 145.7753 45.61800 145.3564 38.31740 144.8522 37.84682 143.6806 38.78581 143.2515 34.26241 142.2316 38.08290 141.6820 35.19980 140.8033 28.87801 140.6127 35.87820 140.3715 34.36620 140.2103 63.88383 4736.105 65.46765 4724.316 75.24120 4705.066 71.65729 4705.230 66.35460 4667.992 67.25212 4676.520 67.56998 4620.324 60.00771 4593.395 48.97499 4610.266 43.05554 4602.934 49.18642 4601.078 66.63170 4579.273 66.07791 4606.797 64.28436 4580.066 73.12025 4542.828 65.25049 4547.844 61.40886 4469.035 82.37369 4440.582 65.74400 4413.301 72.60283 4385.219 56.24944 57.29346 66.29506 63.47986 58.56868 59.40878 59.29515 52.73030 43.55037 38.57245 43.59386 58.18488 58.04610 56.62885 64.54004 57.69107 54.18683 71.66841 58.09167 63.88628 904D0. 000 1190. 777 32 · 58791 75. 44145 117. 0162 62 · 81168 139 · 5042 4389 · 348 8950.000 1176.722 41.45059 70.27034 123.6905 99.46695 139.4888 4366.437 8900.000 1172.513 38.44301 65.00079 120.9636 129.3651 138.7949 4305.160 8850.000 1189.717 33.13560 78.48219 116.2651 121.2196 138.5613 4270.316 8800.000 500.0000 34.02431 83.53682 112.7507 183.5204 100.0000 3500.000 66.99496 61.78006 56 · 94176 69.08905 73.23227 TOTAL DATA RECORDS : STARTING TAPE DEPTH = FILE TRAILER **** 156 10950.00 ENDING TAPE DEPTH = 8780.00 **** TAPE TRAILER **** LIS 91/ 3/27 01 TOTAL RECORDS IN THIS LOGICAL TAPE : 406 **** REEL TRAILER **** LIS 91/ 3/27 AWS 01 TOTAL RECORDS IN THIS LOGICAL REEL : TOTAL RECORDS' IN THIS PHYSICAL REEL: End of exeCution: Wed 27 MAR 91 1:57p Elapsed execution time = 46.69 seconds. SYSTEM RETURN CODE = 0 407 407
