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196-093
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Received By: Date: Hilcorp North Slope, LLC Date: 04/18/2022 To: Alaska Oil & Gas Conservation Commission Natural Resource Technician 333 W 7th Ave Suite 100 Anchorage, AK 99501 DATA TRANSMITTAL WELL: NK-28 PTD: 196-093 API: 50-029-22678-00-00 Scanned Segmented Bond Tool – Gamma Ray – CCL (07/26/1996) TIF and PDF Format SFTP Transfer - Data Folders: Please include current contact information if different from above. 196-093 T36482 Meredith Guhl Digitally signed by Meredith Guhl Date: 2022.04.18 11:47:19 -08'00' `°►C� oq3 WELL LOG TRANSMITTAL RECEIVED MAR 11D DATA LOGGED PROACTIVE DIAGNOSTIC SERVICES, INC. a�A4/2OiC. A GCC M.K.BENDER To: AOGCC Makana Bender 333 W. 7th Ave Suite 100 Anchorage, Alaska 99501 APR 0 8 2016 (907) 793-1225 RE : Cased Hole/Open Hole/Mechanical Logs and /or Tubing Inspection(Caliper/ MTT) The technical data listed below is being submitted herewith. Please acknowledge receipt by returning a signed copy of this transmittal letter to the attention of : BP Exploration (Alaska), Inc. Petrotechnical Data Center Attn: Analisa Steger LR2— 1 900 Benson Blvd. Anchorage,AK 99508 aancodc Wbp.com and ProActive Diagnostic Services, Inc. Attn: Robert A. Richey 130 West International Airport Road Suite C Anchorage, AK 99518 Fax: (907) 245-8952 1) LeakPointTM Survey 24-Feb-16 NK-28 BL/CD 50-029-22678-00 2) / Signed : 102/24 - 15_012Aeft Date : Print Name: PROACTIVE DIAGNOSTIC SERVICES, INC., 130 W.INTERNATIONAL AIRPORT RD SUITE C, ANCHORAGE, AK 99518 PHONE: (907)245-8951 FAX: (907)245-8952 E-MAIL: PDSANCHORAGECt�MEMORYLOG.COM WEBSITE:WWW.MEMORYLOG.COM D:\Achives\MasterTemplateFiles\Templates\Distribution\TransmittalSheets\BP_Transmit.docx • Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWelllntegrityCoordinator@bp.com> Sent: Tuesday, December 01, 2015 6:51 PM To: AK, OPS GPMA OSM; AK, OPS GPMA Field O&M TL; AK, OPS LPC DS Ops Lead; AK, OPS LPC Board Operator; AK, OPS LPC DS Operator; Cismoski, Doug A; Daniel, Ryan;AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB East Wells Opt Engr; AK, RES GPB West Wells Opt Engr; Alatalo, Travis; 'chris.wallace@alaska.gov' Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Pettus, Whitney; Regg, James B (DOA); Sayers, Jessica; Dickerman, Eric Subject: NOT OPERABLE:Injector NK-28 (PTD #1960930) MIT-IA Failed All, Injector NK-28 (PTD#1960930) failed a MIT-IA to 2500 psi on December 01, 2015 indicating a lack of two competent barriers in the wellbore. At this time,the well has been reclassified as Not Operable until integrity can be restored. The well has been added to the Quarterly Not Operable Injector report and should be shut in as soon as operationally feasible. Please call with any questions, comments, or concerns. Thank you, Whitney Pettus (Alternate:Kevin Parks) SCANNEDAUG 14 2U16 BP Alaska-Well Integrity Coordinator GW WIC Office: 907.659.5102 WIC Email: AKDCWeIllntegrityCoordinator@BP.com From: AK, D&C Well Integrity Coordinator Sent: Sundal„November 29, 2015 5:08 PM To: AK, OPS GPMA OSM; K, OPS GPMA Field O&M TL; AK, OPS LPC DS Ops Lead; AK, OPS LPC Board Operator; AK, OPS LPC DS Operator; Cismoski;Doug A; Daniel, Ryan; AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB East Wells Opt Engr; AK, RES GPB West Wells Opt Engr; Alatalo, Travis; 'chris.wallace@alaska.gov'; Regg, James B (DON (jim.regg@alaska.gov) Cc: AK, D&C Well Integrity Coordinator; AK, D&C DHD Well In egrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Pettus, Whitney Subject: UNDER EVALUATION: Injector NK-28 (PTD #1960930) IA repressurization All, Seawater Injector NK-28 (PTD# 1960930) has begun demonstrating anomalous inner annulus pressure readings with current T/I/0 = 1322/1880/300 psi. DHD went out today and performed an IA bleed from 1,880 to 650'psi;the subsequent one hour monitor showed the annulus at 1,720 psi, which is well above the current injection pressure of 1 • • Wallace, Chris D (DOA) From: AK, D&C Well Integrity Coordinator <AKDCWellIntegrityCoordinator@bp.com> Sent: Sunday, November 29, 2015 5:08 PM To: AK, OPS GPMA OSM; AK, OPS GPMA Field O&M TL; AK, OPS LPC DS Ops Lead; AK, OPS LPC Board Operator; AK, OPS LPC DS Operator; Cismoski, Doug A; Daniel, Ryan;AK, D&C Wireline Operations Superintendent; AK, D&C Well Services Operations Superintendent; AK, RES GPB East Wells Opt Engr;AK, RES GPB West Wells Opt Engr; Alatalo, Travis;Wallace, Chris D (DOA); Regg, James B (DOA) Cc: AK, D&C Well Integrity Coordinator;AK, D&C DHD Well Integrity Engineer; AK, D&C Projects Well Integrity Engineer; AK, OPS FF Well Ops Comp Rep; Sternicki, Oliver R; Pettus, Whitney Subject: UNDER EVALUATION:Injector NK-28 (PTD #1960930)IA repressurization Attachments: Injector NK-28 TIO-INJ Plot 11-29-15.docx; NK-28 Wellbore Schematic.pdf All, Seawater Injector NK-28 (PTD# 1960930) has begun demonstrating anomalous inner annulus pressure readings with current T/I/O = 1322/1880/300 psi. DHD went out today and performed an IA bleed from 1,880 to 650 psi;the subsequent one hour monitor showed the annulus at 1,720 psi, which is well above the current injection pressure of 1,390 psi. At this time,the well has been reclassified as Under Evaluation for suspected downhole integrity issues.The well will remain online until MIT-IA has been performed (scheduled for tomorrow). Plan Forward: 1. DHD: MIT-IA 2,500 psi 2. WIE/WIC: Additional diagnostics as needed A copy of the wellbore schematic and TIO/Injection plots have beeli lli�1Ud"ed for reference. Thank you, Laurie Climer (Stand-in WIC) SCANNED Ati CI 1 8 2015 BP Alaska-Well Integrity Coordinator GINGKri�a;WPIsn �.7 y�/ Organizat+on WIC Office: 907.659.5102 WIC Email: AKDCWeIlIntegrityCoordinator(caBP.com 1 Pages NOT Scanned in this Well History File XHVZE This page identifies those items that were not scanned during the initial scanning project. They are available in the original file and viewable by direct inspection. I~ -O~ File Number of Well History File PAGES TO DELETE RESCAN [] [] Color items - Pages: i/)J 2,,/3, ~ t//¢%~/, ~ ~' Grayscale, halftones, pictures, graphs, charts - Pages: Poor Quality Original - Pages: Other - Pages: DIGITAL DATA OVERSIZED Diskettes, No. ~ Other, No/Type Logs of various kinds Other Complete COMMENTS: Scanned by: Beved~incent TO RE-SCAN Notes: Nathan Lowell Re-Scanned by: Beverly Bianna Vi.oe.,~ Lowe, r~ate: ~¢.-']0 /sI ~ y QF ?if m r5 4,,L*„1%% ,� tHE STATEF as a CS andGre f`�-� ,--_-. _ ^_ ,L .)_-� P is .1— J. \\lam t Sit-.I= , — 333 West Seventh Avenue k, 't, ; GOVERNOR SEAN PARNELL Anchorage, Alaska 99501-3572 -tee`' ✓a r. 707.279 1433 ���,L,A- � r-,,;.: 9017.270.7542 Wade Boman Production Engineer BP Exploration (Alaska), Inc. O r 3 P.O. Box 196612 tij Anchorage, AK 99519-66121:61 Re: Prudhoe Bay Field,Niakuk Oil Pool,NIA NK-28 Sundry Number: 314-289 Dear Mr. Boman: 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 AOGCC grants for good cause shown, a person affected by it may file with the AOGCC 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, /°"—):).0-4/._ __ Cathy P. oerster Chair DATED this 2431-a- of May, 2014. Encl. ` • RECEIVED STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION MAYO 5 20)4 APPLICATION FOR SUNDRY APPROVALS �� �d/ 20 AAC 25.280 1.Type of Request: Abandon E Plug for Redrill❑ Perforate New Pool❑ Repair Well O. Change Approved Program❑ Suspend❑ Plug Perforations❑ Perforate❑ Pull Tubing❑ Time Extension❑ Operations Shutdown❑ Re-enter Susp.Well❑ Stimulate❑ Alter Casing❑ Other. -it-' 4 Ire- 2.Operator Name: 4.Current Well Class: 5.Permit to Drill Number p be BP Exploration(Alaska),Inc. Exploratory ❑ Development ❑ 196-093-0• 3.Address: Stratigraphic ❑ Service 0- 6.API Number P.O.Box 196612,Anchorage,AK 99519-6612 50-029-22678-00-00 • 7.If perforating: 8.Well Name and Number. What Regulation or Conservation Order governs well spacing in this pool? NIA NK-28 Will planned perforations require a spacing exception? Yes ❑ No ❑ 9.Property Designation(Lease Number): 10.Field/Pool(s): ADL0034626 • PRUDHOE BAY, NIAKUK OIL ' 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): 21405 • 9565 - 21320 9520 None None Casing Length Size MD TVD Burst Collapse Structural Conductor 80 20"94#H-40 40-120 40-120 Surface 7552 13-3/8"68#L-80 41-7593 41-4386.66 5020 2260 Intermediate None None None None None None Production 16488 9-5/8"47#L-80 37-16525 37-7617.96 6870 4760 Liner 4413 7"29#L-80 16992-21405 7782.68-9564.74 8160 7020 Perforation Depth MD(ft): Perforation Depth TVD(ft): Tubing Size: Tubing Grade: Tubing MD(ft): 20836-20986 9278-9349.11 4-1/2"12.6#L-80 L-80 35-17004 Packers and SSSV Type: 4-1/2"TIW HBBP Packer Packers and SSSV MD(ft)and TVD(ft): 16904,7752.48 4-1/2"HES TRSSSV 2149',2064.7' 12.Attachments: Description Summary of Proposal ❑ 13.Well Class after proposed work: Detailed Operations Program Q BOP Sketch ❑ Exploratory ❑ Development ❑ Service ❑, 14.Estimated Date for 15.Well Status after proposed work: Commencing Operations: �—E,r-e. , )-(-)I`} Oil ❑ Gas ❑ WDSPL ❑ Suspended ❑ 16.Verbal Approval: Date: WINJ 0 , GINJ ❑ WAG ❑ Abandoned ❑ Commission Representative: GSTOR ❑ SPLUG ❑ 17.I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact Wade Boman Email Wade.Boman©BP.Com Printed Name Wade Boman Title Production Engineer Signature ' n Phone 564-4674 Date IPrepared by Gany Catron 564-4424 COMMISSION USE ONLY Conditions of approval: Notify Commission so that a representative may witness Sundry Number. 3 VA.....?—c64:: Plug Integrity ❑ BOP Test ❑ Mechanical Integrity Test Location Clearance ❑ Other: fc<, ft- Vtr, i-,,,e55rd An iT—/4 1 elfri✓rQ RFfifr %-f'- bi /! ?rc/ 1 '?J^''C Spacing Exception Required? Yes ❑ No 1 Subsequent Form Required: /Q — 4 7 4 APPROVED BY � Approved by: aiet.7 P COMMISSIONER THE COMMISSION Date: S-�O Q'[ V Form 10-403 Revised 10/2012 ORIGTINAE.RBDMS id for 12 months from the date o prove!. Submit Form and Attachments in Duplicate t«F 5177/11- MAY 2 9 201 4 .vS) 5-.‘ii p *444* Air IL 11004 To: Len Seymour / Tyler Norene Date: Apr. 29th 2014 ADW Well Service Team Leaders Rob Liddelow / Jerry Middendorf Cost Code: APBINJEC ADW Wells Wireline Ops Team Leaders IOR: 100 From: Wade Boman Estimated Cost Niakuk PE Subject: NK-28: Tubing patch Please perform the following steps on NK-28: Summary: Step Type Procedure Comment 1 S Pull upper patch from 15,821' MD. Drift past 16,770' Send pulled patch to MD w/30' dummy patch. Baker shop for immediate redressing (patch must go back in hole) 2 F Rig-up to assist SL. Pump patch drift down if needed 3 E Set top element of new patch @ 16,736' MD New location for upper Set top element of formerly pulled patch @ 15,826' patch is deeper than MD. original location to stay out of old slips area 4 F Assist E-line w/getting patches to depth. Perform RIR of 3500 MIT-IA to 2500 psi. If passes, turn well over to DSO to put BOL. NK-28 Well data Status: Not Operable offline sea water injection well (offline since 2-12-2014 due to TxIA communication) Current Injection: Offline due to integrity issues (previous injection -3000 bwpd) Max Deviation: 71° at 13,600' MD BHP: 6-4-2012: 4,681 psi @ 9,200' SS (from surface fall-off) Min. ID: 2.33" @ 16,799' ELMD in Baker 30' patch Last TD tag: Soft tag w/ 2.77" cent/TEL @ 20,960' MD on 8-27-2005 Last DH Ops: Acoustic LDL on 4-8-2014 Latest H2S Value: N/A (sea water injector) Angle at Top Pert 63° @ 20,836' MD Perforations: 20,836' — 20,986' (MD) Objectives • Patch a small tubing leak that was seen at 16,756' MD by the 4-7-2014 PDS ✓ acoustic LDL, so as to get TxIA integrity. This will require pulling the current upper patch, and resetting, after setting the new patch. Background information NK-28 is a sea water injector that was drilled and completed in 1996. It originally was produced until January of 2001 and was converted to injection in August of 2001. NK-28 is a very high-angle well and challenging to wireline. Even with the use of rollers, over the last ten years it has been necessary to place the well on injection to enable tools to get down to the tubing tail. Wellwork performed prior to the recent patches being set required extensive Brush-n-Flushes and repeated pumping to help SL get down to the tubing tail (removing schmoo in the process), even with the use of rollers. NK-28 failed an MIT-IA on 5-18-2013. A subsequent caliper run identified moderate wear in the tubing, and a subsequent LDL identified 3 possible leak points: one at 15,838' MD, and the others at the GLM #3 @16,826' MD and the pup joint below this @ 16,840' MD. The most recent wellwork job placed a two-piece 50'-long patch element- to-element from 16,800' MD to 16,850' MD to cover the lower two leaks, and a one- piece 30'-long patch element-to-element from 15,823' to 15,853' to cover the uppermost leak. Following the patch job the well passed a MIT-IA to 2500 psi on 2-4-14, was put on injection for a few days, then failed a State-witnessed MIT-IA to 2500 psi with a LLR of only 0.06 bbls/min (2.52 gal/min). This was followed up on 4-7-2014 with an acoustic LDL which found the current leak @ 16,756' MD, with a LLR of 2.72 gal/min at 2500 psi using diesel. Because these LLR's are nearly identical, it is believed that patching the current leak will allow the well to pass integrity testing. ***Special note: Highly deviated well*** Down-hole ops run before the setting of the existing patches in the well ran into significant problems while trying to RIH. Tools set down at assorted locations and schmoo was encountered multiple times. To get down the well, extensive brush-n- flushing with significant amounts of hot diesel was required, in addition to wireline tools being pumped down with diesel (over 1000 gallons of diesel was eventually used). 2 That said, the jobs performed this last Jan & Feb to set the existing patches ran into relatively little difficulties. To set the lower part of the two-piece straddle packer @ 16,800' MD, LRS pumped 200 bbls of Safelube, then pumped at minimum rate while E- line set the patch. The upper half of this patch was set by Slickline while LRS pumped 87 bbls of 140° diesel. However, in order to place the one-piece straddle packer patch higher up in the well @15,823' MD, E-line had LRS pump them down from 9000' MD due to deviation. It is recommended to have LRS standing by with Safelube and hot diesel ready to assist Slickline and/or E-line during their drifts. Depth Control Tie into the Tubing Tally (dated 7-28-1996; Figure 2, below) for packer setting depths. The 4-7-2014 PDS Leakpoint Survey acoustic LDL (Figures 3 & 4, below) can also be used as a reference. The CCL's are clear on this log, and the log is tied into the tubing tally. The leak area of this log can be seen in Figure 4. Slickline (Step 1) 1. RIH, pull one-piece Baker 30' element-to-element one-trip Flow Guard straddle patch, the top of which is @ 15,821' MD. POOH. Send pulled patch to the Baker shop on the Slope for immediate re-dressing. 2. RIH with 30' KB packer dummy. Drift past 16,770' MD, staying above the in — place two-piece 50' Straddle Packer, the top of which is @ —16,800' MD. POOH. 3. RDMO for E-line. Fullbore (Step 2) 1 . Rig-up to tubing to help SL pump down if necessary. E-line (Step 3) 1. Rig-up with new one-piece Baker 30' element-to-element one-trip Flow Guard straddle patch, and CCL. 2. Correlate with Tubing Tally for packer element setting depths. 3. Fullbore - assist as needed. 4. RIH, set bottom packing element @16,766' MD, with top packing element @16,736' MD (see Figures 4 & 5 below). POOH. 5. Rig-up with re-dressed one-piece Baker 30' element-to-element one-trip Flow Guard straddle patch, and CCL. RIH, set bottom packing element @15,856' MD, 3 and top packing eiment @15,826' MD (see "Figure 6 celow). This will place patch slightly below its original location so as to have the slips in a new area. 6. RDMO. Fullbore (Step 4) 1. Rig-up to tubing to assist E-line pump down if necessary 2. Perform MIT-IA to 2500 psi. 3. If MIT-IA passes, RDMO. 4. Turn well over to DSO, put well on RIR of 3,500 bwpd. Direct questions to Wade Boman at 564-4674 (work) 907-687-4468 (cell). cc: GPB, LPC DS Ops Lead GPB, OPS GPMA Field O&M Team Lead GPB, LPC DS Ops Bob Gerik Eko Apolianto 4 Figure 1 — Current WBS TREE C NK-28 YM:i.LFE/1Q- Fill: N K 2 8 SAFETY NOTES: WELL REQUIRES A SSSV"'WELL ANGLE ?nit P1115' ACRMTOR= BAKER OKB.REV- 60.8' I 8F aEV= MOP= 1015' ( 2149' J-�4-1 rFBSEW.R10TRsSsV.D-3.619• kW Angie= 71•©13600 ,1 Daum AM= 20797' Datum IO• 9200'SS 13 3/6•COG.721'.t 00.D-12.317" --I 7493' j l.4(b LIFE 11MU'GNE1,.b �� ST MD ND DEV TYPE VLV LATCH PORT (ATE 1 -8799 4838 68 TB OMY t2( 0 08111/01 Minimum 10= 2.33'_16799'ELME) 2 14198 6781 69 T8 OW PK 0 06/11/01 3 16821 7724 70 TB Y RA 0. 09/18/13 4-112"BKR FLO-GUARD PACKER 'STA 43•HAS°MOOEDPAC1 13621 15858'ELUDD H4-1/2 FLo GUARDPAGXER, 111 1 D 2 4S'(D2tD3114} 16798-16853'EL.MD 1-4=if2-FL(Y(3UARQSTRAOCIE 1tiger -14-1/2'I-Es X NP,D=3.813'I 16892' 4-172•X 2.716'NP Fill(12/11t13)1 MII 1,1.4 10907 9.518"X4-117"OW HB-BP R(R ANO ANCHOR LATCH ASSY,ID=4 017 TOP OF 7'LNR -{ 1l$ � _....._._->....._....-....._,w..o. .�.. ri 16668 .1-1cur►Es X NP.D=3 813'1 II 1666, H4-12'FES XN FAD,D=3.725'J 4-1/7"1BG,12w,L-40 BTC-M, — 17007] I 17060 4-2/r iY1LB3,D=4.125' 0152 001.10-3.950' H _...n....,_. -lemon NOT LOMB]1 l9.5ir CSG,470,L-80,10=8.661- H 17106' —, PERFORA TION SUMMARY REF LOG:GDR ON 07/20/96 ANGLE AT113PFE F_63'020836' Net.Rarer to Roducbon CO3 tot to. port data SEE SPP N1ENAL OprlSea SNOT SOZ 4-U2' 5 20836-20986 0 _07/27/96 MID- 21320' l...041ittr14,40, 17 I t•LFit,298,1-80,.0371 tpr.D=5.184- H 21361- DUE REV BY ODM1E415 OA 1E REI BY OOMIBATS FEMME BAY INT 07'.10/84 OWOINWIL CON PLETION O2i03114 ,i.0 TYD 02Rrax-now WELL t4(-20 09106/06 CS/PJC IVO/PAD DATUMCORRECTION02/03/14 ATOIJIr)SET OMR STRADDLER:R(01/27/14) FERMI No •1960930 02118/11 1431.1113AIMED SSSV SAFETY NOTE i 02103114 MSSiJ14)SET UTTER PATCH(01/31114) I AFI Mx 54029.22678-00 09120/13 CI.LW GLV CIO/SET PLUG(09118-19'13) 02(14/14 JCIEJ60 SET BKR PATCH402/03/14) SEC 36.T12N,R1%,1347 PSL 4 970'FE_ 12120/13 WSW() RUG/SET NPRED(121111131 02/7/14 W8JFt1C STRDLPKRCORFS3;TION(1/31/14) 01/15/14 JLSJ4D-.--- kaiakO1111/14) 1 B Exploration(Alaska) 5 Figure 2 - Tubing Tally TUBING SUMMARY I' ..._... RIG POOL 7 Date 7/28/96 BPI WELL# NK-28 TUBING 4.5 L-80 BTC-Mod TUBING WT. 12.6# 468 JTS ON RACK 407 JTS RAN 40.30 OKT3 TO BF 19290.24 FT ON RACK 16770 FT RAN :ription includes: SIZE,TYPE, CONNECTION(JTS#-#) ITEM ID OD LENGTH TOP BOTTOM Baker Shear out Sub w/ ball (Sheared) 4.125 5.24 1.06 17002.50 17003.56 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 2.11 17000.39 17002.50 Pup Jt. 4-1/2", L-80, NSCT 3.958 4.98 9.74 16990.65 17000.39 XN' Nipple (3.813 profile) 3.725 5.03 1.22 16989.43 16990.65 Pup Jt. 4-1/2", L-80, NSCT 3.958 4.98 19.64 16969.79 16989.43 X' Nipple 3.813 5.03 1.14 16968.65 16969.79 X/O Pup Jt. 4-1/2", IBT x NSCT 3.958 4.98 9.68 16958.97 16968.65 1 Jt. 4-1/2", L-80, IBT-Mod, Tbg 3.958 4.98 41.29 16917.68 16958.97 Pup Jt. 4-1/2", L-80, IBT-Mod 3.958 4.98 9.64 16908.04 16917.68 TIW HB-BP Packer 4.25 8.305 4.27 16903.77 16908.04 TIW HB-BP Anchor Latch Assy 4.012 6.327 1.28 16902.49 16903.77 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 9.66 16892.83 16902.49 'X' Nipple 3.813 5.03 1.14 16891 .69 16892.83 X/O Pup Jt. 4-1/2", IBT x NSCT 3.958 4.98 9.67 16882.02 16891.69 1 Jt. 4-1/2", L-80, IBT-Mod, Tbg 3.958 4.98 41 .53 16840.49 16882.02 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 9.70 16830.79 16840.49 GLM 4.5" x 1.5" HES 'TB' w/ DV, RA Latch 3.857 7.03 9.46 16821.33 16830.79 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 9.79 16811.54 16821.33 63 Jts. 4-1/2", L-80, IBT-Mod, Tbg 3.958 4.98 2594.28 14217.26 16811.54 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 9.68 14207.58 14217.26 GLM 4.5" x 1.5" HES 'TB' w/ DV, RA Latch 3.857 7.03 9.44 14198.14 14207.58 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 9.80 14188.34 14198.14 130 Jts. 4-1/2", L-80, IBT-Mod, Tbg 3.958 4.98 5370.36 8817.98 14188.34 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 9.66 8808.32 8817.98 GLM, HES 'TB' w/ RP Shear, RA Latch 3.857 7.03 9.44 8798.88 8808.32 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958, 4.98 9.69 8789.19 8798.88 161 Jts. 4-1/2", L-80, IBT-Mod, Tbg 3.958 4.98 6620.95 2168.24 8789.19 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 9.68 2158.56 2168.24 SCSSV, HES 'Series 10' Tbg. Ret. 3.813 7.49 10.04 2148.52 2158.56 X/O Pup Jt. 4-1/2", NSCT x IBT 3.958 4.98 9.76 2138.76 2148.52 51 Jts. 4-1/2", L-80, IBT-Mod, Tbg 3.958 4.98 2101 .88 36.88 2138.76 FMC Tubing Hgr w/ Pup 3.938 13.47 2.38 34.50 36.88 Pool 7 Rot Tb1 to Tbg hgr LDS 34.5034.50 Tbg Hgr has 4.5" NSCT landing thread . Torque 3800 ft/lbs . P/U wt 222K, S/O wt 122K • • • 6 Figure 3 — Screenshot from 4-7-2014 acoustic LDL -o calm I r m 1 1 -iQ-1 ;� - .. .. _.� i g a > . 7 i i i i I i_$ i o ci.o?I well BP Na8iope Exploration (Alaska), Inc. ? "alk CD I i� a i m a co ;$,° Field a . $ Borough N 4 ‘,. State Alaska r�i 3 0 N_ o NO `-- = gim R c n niki ��v -ll qm . m in r 7 iA E 75 S 'ta�1 v 3 rn iu m Z Z Z QJ CM ' , I i pp 9ru gD Z7 cri�ur �" a� gi !igg t�j c cQ -10^ „ti.' [.; _I l $ r Z 8�g s I , Y3S �. VP 0 p m • cn c . '� Z7 D H � T cn O or, Siilr� Nm la a Zl G7m d Z z119 a='g3 �� i m `� m o re w + v C/) a 'v, 3 $ l D C 14.-1 7.4..1 Z0E:3 x ‘.3WI a n Z $� 1111/1 DDS' i Ili 0 71 • t«Fold Fere»s All interpretations are opinions based on inferences from electrical or other measurements and we cannot and do not guarantee the accuracy or conedness of any interpretation and we shall not,except in the case of gross or willful negligence on our part.be liable or resporeible tor any loss,costs damages.or expenses incl-red or sustained by anyone resulting from any interpretation made by any of our officers agents or employees These interpretations are also sub+ed to our general terms and conditions set out in our current Poore Schedule -- Comments Log Referenced to Tubing Summary Dated:28-July- 1996 LRS pressured up with diesel on IA.to—2.500 psi taking returns to formation l LRS established an approximate LLR of 2.72 gals,min Leak Signature Recorded§16,755' Sensor Offset(ft) S_chemati_c Description , Len tft) OD(in) WI(lb) R _ AGS 001 (212570) 0.21 1.69 1 00 Adaptor GO to Sender 7 . . Figure 4 - Screenshot from 4-7-2014 acoustic LDL (with proposed patch location) L . 1 i -vb. — - - - - - - -- -- ---- -- - 16700 - — --- - - .. . i• ; . , 1 i - \ _ . . .. I _____ Leak Signature . . • .,. 1 . .. i . .. .. .e. t.., . 1 - p...,-_,-- •.,•'i I . [ ' i 066 - I , 1 i. 11 ' ,I .1 , . 1 I , , ,r. 1 •.‘ , , 1680C I i . :• I ; 4 l i Straddle Packer 7----- - f : • 1 I - ----- —1-- 1 I , 1 I1 _ . .. . . • , — i I 1I ! 1-• ----- — ... CCL—4. . ; i . L 0--Line Speed - • "X"Nipple . 8 Figure 5 — Diagram of proposed location for new patch St1„,Pc4,.'. New ,re-,.cU. 1 s1"'JILL P.�.1, Coir irk-3E — .upet tril. KL'Ma Gx310.4 % ore--PeCC ein p i • ,.736 MD • 4.cool ^ iwj S+.Maw1 J',`i Viii Y#r .} { �i � ibt'i1� I4yey1; �) 11,114.1 yy 10/i tl4+S� • { I , a •sh, `t@ iO5L' � it 44M5 Ju.y►; a.ee. 4.4e,.9) -#e 6e Lovr.+,l ; t)) 1'Fr,rv.¢ Q 13 r40, i 9 Figure 6 — Diagram of upper patch setting location kip 40 SHEET NO. OF SUBJECT.1)4c-.P cca y;)" ip444- 5L2•31e, y "e''f. ;ye HI . BASED ON BUDGET/AFE NO. ENGINEER DEPT.APP'VL DATE FILE NO. ex.-0(.5 orte-p;etc. -S ' 4.b. :nut- ()Ott., `lY — 15'01' MO / - -- IS516: MD / , 1-A.4Pt + t&r..r 4)IIIi 4,1 Is7,7' /5814 / fui7re6Ld `' +„) 1C801' 45u) --- - - 1a,a4 ' +1 I.C4i' IS6063 5,S411 AD,' — (S,gLI'AID N k460g Jtmot.s 4R.1.1v, clic`1•.1,,;.,t 1,, a 1.4,-,4. x..41, F /M 23771 Ifit VCON 10 • • LP, BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 , t; 2S\ July 6, 2011 Irv* *we 4 1 4 'a' Mr. Tom Maunder 11(, Alaska Oil and Gas Conservation Commission 333 West West 7 Avenue Anchorage, Alaska 99501 Subject: Corrosion Inhibitor Treatments of GPMA Niakuk Dear Mr. Maunder, Enclosed please find multiple copies of a spreadsheet with a list of wells from GPMA Niakuk 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, Mehreen Vazir, at 659-5102. Sincerely, Gerald Murphy BPXA, Well Integrity Coordinator • • BP Exploration (Alaska) Inc. Surface Casing by Conductor Annulus Cement, Corrosion inhibitor, Sealant Top-off Report of Sundry Operations (10 -404) Niakuk Date: 05/15/11 Corrosion Initial top of Vol. of cement Final top of Cement top off Corrosion inhibitor/ Well Name PTD # API # cement pumped cement date inhibitor sealant date ft bbls ft na gal NK -01A 1760280 500292015801 P&A 3/9/91 NA NA NA NA NA NK -02A 1780790 500292018001 P&A 3/13/91 NA NA NA NA NA NK -03 1780940 500292035000 P&A 4/14/80 NA NA NA NA NA NK-04 1842000 500292121700 P&A 4/14/96 NA NA NA NA NA NK -05 1850270 500292129000 P&A 4/15/96 NA NA NA NA NA NK-06 1852780 500292148800 P&A 4/15/96 NA NA NA NA NA NK -07A 2010830 500292241001 0.2 NA 0.2 NA 0.9 4/30/2011 NK-08A 2010290 500292249101 0.2 NA 0.2 NA 0.9 4/30/2011 NK-09 1941400 500292251800 2.1 NA 2.1 NA 17.0 4/30/2011 NK -10 1931840 600292242500 1.5 NA 1.5 NA 11.9 4/30/2011 NK -11A 2020020 500292278901 1.5 NA 1.5 NA 11.9 4/30/2011 NK -12C 2030550 500292241403 1.8 NA 1.8 NA 31.0 4/30/2011 NK -13 1981340 500292289300 2.3 NA 2.3 NA 22.1 5/4/2011 NK -14A 2060310 500292266801 1.8 NA 1.8 NA 17.0 5/4/2011 NK -15 1970320 500292274500 1.8 NA 1.8 NA 18.7 5/4/2011 NK -18 1940220 500292244700 2.5 NA 2.5 NA 20.4 5/4/2011 NK -17 1961850 500292270900 3 NA 3 NA 20.4 6/4/2011 NK -18 1931770 500292242100 2 NA 2 NA 17.0 5/6/2011 NK -19A 2010700 500292250701 1.8 NA 1.8 NA 15.3 5/6/2011 NK -20A 2050400 500292242901 2.1 NA 2.1 NA 13.6 5/9/2011 NK -21 1940860 500292248700 2 NA 2 NA 22.1 5/15/2011 NK -22A 2012280 500292240201 1.5 NA 1.5 NA 11.9 5/11/2011 NK -23 1940350 500292245500 3.6 NA 3.6 NA 20.4 5/10/2011 NK -25 1970680 500292276000 2.5 NA 2.5 NA 15.3 5/11/2011 NK -26 1940050 500292244000 2.9 NA 2.9 NA 17.0 5/11/2011 NK -27 1950210 500292254700 2.3 NA 2.3 NA 13.6 4/30/2011 NK -28 1980930 500292287800 Sealed Conductor NA Sealed Conductor NA NA NA NK -29 1961900 500292272400 1.7 NA 1.7 NA 10.2 4/30/2011 NK-38A 2042410 500292254001 3.1 NA 3.1 NA 13.6 5/6/2011 NK-41A 1971580 500292277801 9.1 NA 9.1 NA 54.0 5/9/2011 NK-42 1941080 500292249900 2 NA 2 NA 13.6 5/9/2011 NK-43 2010010 500292299800 1 NA 1 NA 5.1 5/9/2011 NK-81A 2060350 500292289301 14 NA 14 NA 110.5 5/15/2011 NK-82A 2030470 500292285201 1.3 NA 1.3 NA 13.6 5/4/2011 NK-65A 2050830 500292288901 1 NA 1 NA 8.5 5/8/2011 • • MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: Jim Regg DATE: Friday, October 01, 2010 �'� ` P.I. Supervisor ` f II SUBJECT: Mechanical Integrity Tests l BP EXPLORATION (ALASKA) INC NK -28 FROM: Jeff Jones PRUDHOE BAY UN NIA NK -28 Petroleum Inspector Sre: Inspector Reviewed By: P.I. Supry ��— NON- CONFIDENTIAL Comm Well Name: PRUDHOE BAY UN NIA NK -28 API Well Number 50- 029 - 22678 -00 -00 Inspector Name: Jeff Jones Insp Num: mitJJ100930153814 Permit Number: 196 -093 -0 Inspection Date: 9/29/2010 Rel Insp Num: Packer Depth Pretest Initial 15 Min. 30 Min. 45 Min. 60 Min. Well NK -28 ` Type Inj. W TVD 7752 IA 640 2800 2750 2730 ' P.T.D' 1960930 I TypeTest SPT Test psi 1938 j OA 290 300 290 290 Interval4YRTST - WIT P , Tubin Im 1380 1380 1380 Notes: 8 BBLS methanol pumped. 1 well inspected; no exceptions noted. , NOY I 6 1010 Friday, October 01, 2010 Page I of 1 ALASKA OIL AND GAS CONSERVATION COMMISSION TONY KNOWLES, GOVERNOR 333 W. 7TM AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 ADMINISTRATIVE APPROVAL NO. AIO 14.002 , Anne L Shaw BP Exploration Alaska, Inc. PO Box 196612 Anchorage, Alaska 99519-6612 Re: Interim authorization to inject in Niakuk well NK-28 Dear Ms. Shaw: BP Exploration (Alaska) Inc., ("BPXA") by letter dated August 13, 2001 requested authorization for interim injection into well NK-28 to allow for water injection while gathering data and information to update the administrative record in support of the expansion of AIO 14. On August 20, 2001, the AOGCC provided BPXA with interim approval for injection operations into NK-28, pending submittal of technical information requested by the Commission in support of expansion of AIO 14. Expansion of AIO 14 is necessary for long-term allowance of water injection to recover greater volumes of oil from the Western Area of the Niakuk Oil Pool. BPXA submitted a revised application with the additional information requested (received by Commission October 26, 2001). We understand that you will be providing clarification of certain items as outlined in e-mail to you from Jane Williamson dated November 1, 2001. The application will be complete with submittal of that information. The Commission authorizes continued injection into NK-28 for enhanced recovery operations. This administrative approval will expire on February 1, 2002. Amendment to AIO-14 for expansion of the Niakuk Area Injection will be £malized prior to this date. November J DONE in Anchorage, Alaska and dated 4, 200 l. Cammy C~hsli iay-lo~ aniel T. eamount, Jr. Chair Commissioner Julie M. Heusser Commissioner BY ORDER OF THE Co~sSION .... ;~ ........ .:,.,:: .,...~,,~.~. ~ ~ . t..~ [:-.-' ..'..'.~ :~ ;:i/.: ~::-:.,~ .... '", :~ 7 ~:,~ ff · ~.". "'~. '.~.'":-..,t "' -:' :,...'..'-.':;.' -:..,-.- ~': ~', ~". ...... -~' ;Z~}?." ' '... ':~ '"'?x '"-;:~':"~ '.~:: · .. :b :. ~.' :' ;'";5'/~:.~'~' (~::;F,.t~FO' ~ -;.,.. ,.:~-i.-,~..-....? t,,. '.;,~ ::: ~;. ',;:;7,-'...:~'~':~&',e:~":~ /~ "~..'-~;~,, ':";~'/:(" '.';"::.;~,C;:~;: ..... ~-;.:,2~~ JUN STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown_ Stimulate_ Plugging _ Pull tubing _ Alter casing _ Repair well _ 2. Name of Operator BP Exploration (Alaska), Inc. 3. Address P. O. Box 196612 Anchoraqe, AK 99519-6612 5. Type of Well: Development __ ExploratowI Stratigraphic__ Service__X 4. Location of well at surface 4021' FNL, 1111' FEL, Sec. 36, T12N, R15E, UM At top of productive interval 2659' FNL, 3044' FEL, Sec. 22, T12N, R15E, UM At effective depth (asp's 721453, 5979790) ~sp~ 70861~ 5991348) At total depth 2101' FNL, 3638' FEL, Sec. 22, T12N, R15E, UM ~sp~708002,5991889) Perforate _ Other_X conversion Prod -> H20 Inj 6. Datum elevation (DF or KB feet) RKB 60 feet 7. Unit or Property name Niakuk 8. Well number NK-28i 9. Permit number / approval number 196'093 / approv # 301-223 signed 8/20/01 10. APl number 50-029-22678 11. Field / Pool Niakuk Oil Pool 12. Present well condition summary Total depth: measured true vertical 21405 9564 feet Plugs (measured) feet Tagged PBTD @ 20966' MD on 9/9/1999. Effective depth: measured true vertical Casing Length Conductor 120' Surface 7433' Production 17046' Liner 4449' 20966 9339 Size 20" 13-3/8" 9-5/8" 7" feet Junk (measured) feet Cemented 260 Sx AS 2360 Sx PFE, 1065 Sx Class G, 260 Sx PFC 900 Sx Class G 475 Sx Class G Measured Depth True Vertical Depth 120' 120' 7493' 4351' 17106' 7821' 16956'-21405' 7771'-9565' Perforation depth: measured 20836' - 20986'. true vertical 9278' - 9349'. Tubing (size, grade, and measured depth) 4-1/2", 12.6#, L-80 Tubing @ 17004' MD. R CEIVED AUG 24 2001 Alaska 0il & Gas Co'ns. Commission Anchorage Packers & SSSV (type & measured depth) 9-5/8" X 4-1/2" TIW HB-BP PACKER @ 16904' MD. 4-1/2" CAMCO HES Series 10 TRSSSV Nipple @ 2149' MD. 13. Stimulation or cement squeeze summary Intervals treated (measured) (see attached) Treatment description including volumes used and final pressure 14. Prior to well operation (1/22/01) Subsequent to operation OiI-Bbl 2 Representative Daily Averaqe Production or Iniection Data Gas-Mcf Water-Bbl Casing Pressure Tubing Pressure 0 357 1437 10000 1825 15. Attachments Copies of Logs and Surveys run__ Daily Report of Well Operations __X 16. Status of well classification as: Oil__ Gas__ Suspended __ Service Water Injector 17. I hereby certify that the fore,g~s true and correct to the best of my knowledge. Title: Niakuk Surveillance Engineer Date Au.qust 22, 2001 Signed ~¢- t~¢~/ '¢ ' Dwight Warner ~/.-'¢' (&,/~ .,-~.¢~/; Prepared by Paul Rauf 564-5799 / Duane Schnorr 564-5174 ., Form 10-404 Rev 06/15/88 · SUBMIT IN DUPLICATE NK-28i DESCRIPTION OF WORK COMPLETED CONVERSION FROM PRODUCER TO INJECTOR Date Event Summary 8/05/2001- 8/11/2001- 8/12/2001: 8/13/2001: 8/21/2001: RIH & performed Hot Oil Treatment w/CT to 14198' CTM. Performed SBHP/FBHP Survey w/PETREDAT. Dummied GLV's. Dummied GLV's. MITIA to 2500 psi - passed. Performed Injectivity test. Placed NK-28i on initial water injection @ 2300 hrs (PW service). Obtained injection data. Page 1 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of request: Conversion from Prod to Inject Well Abandon_ Suspend_ Operational shutdown _ Re-enter suspended well _ Alter casing _ Repair well _ Plugging _ Time extension _ Stimulate _ Change approved program _ Pull tubing _ Variance _ Perforate _ Conversion f/Prod to Inject Other _X 2. Name of Operator BP Exploration (Alaska), Inc. 3. Address P. O. Box 196612 Anchorage, AK 99519-6612 5. Type of Well: Development __X Exploratory __ Stratigraphic __ Service__ 4. Location of well at surface 1258' FSL, 1111' FEL, Sec. 36, T12N, R15E, UM At top of productive interval 2942' FSL, 3369' FEL, SEC 22, T12N, R15E, UM At effective depth 2362' FNL, 1926' FWL, Sec. 22, T12N, R15E, UM At total depth 2101' FNL, 1641' FWL, Sec 22 T12N, R15E, UM (asp's 721453, 5979790) (asp's n/a) (asp's 708295, 5991637) (asp's 708002, 5991889) 6. Datum elevation (DF or KB feet) RKB 60.3 feet 7. Unit or Property name Niakuk't¢t~- ~ '/~1/,~.- 8. Well number NK-28 9. Permit number / approval number 196-093 10. APl number 50-029-22678 11. Field / Pool Niakuk Oil Pool 12. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical Casing Length Conductor 80' Surface 7452' Intermediate 17069' Liner 4449' 21405 feet Plugs (measured) 9564 feet 21318 feet Junk (measured) TD Tag @ 20955' (02/06/1998) 9518 feet Size Cemented Measured Depth 20" 260 sx AS (Approx.) 120' 13-3/8" 2360 sx PF 'E', 1065 sx 7493' "G', 260 sx PF 'C' 9-5/8" 900 sx Class 'G' 17106' 7" 475 sx Class 'G' 16956' - 21405' TrueverticalDepth 120' 4351' 7821' 7771'-9565' Perforation depth: measured Open Perfs 20845'- 20995' true vertical Open Perfs 9282' - 9353' Tubing (size, grade, and measured depth 4-1/2", 12.6#, L-80 TBG @ 16904' MD. Tubing Tail @ 17004'. Packers & SSSV (type & measured depth) 7" x 4-1/2" Packer @ 16904' MD. 4-1/2" SSSV LN @ 2149' MD. 13. Attachments Description summary of proposal __X Detailed operations program __ BOP sketch __ 14. Estimated date for commencing operation 15. Status of well classification as: July 28, 2001 16. If proposal was verbally approved Oil __ X Name of approver Date approved Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed Title: Niakuk Petroleum Engineer Dwic, lht Warner FOR COMMISSION USE ONLY Gas _ Suspended __ Questions? Call Dwight Warner @ 564-5359. Date July 25, 2001. Prepared by DeWayne R. Schnorr 564-5174 Conditions of approval: Notify Commission so representative may witness Plug integrity_ BOP Test__ Location clearance __ Mechanical Integrity Test_~ Subsequent form required 10- . , Approved by order of the Commission :_)RIGINAL SIGNED BY O Taylor Seamount Commissioner Approval no~)0/-¢3¢h¢ Date ~¢/'~ / [ Form 10-403 Rev 06/15/88 · SUBMIT IN TRIPLICATE bp July 27, 2001 Tom Maunder Alaska Oil & Gas Conservation Commission 333 West 7th Avenue Suite 100 Anchorage, Alaska, 99501 BP Exploration (Alaska) Inc. 900 East Benson boulevard P.O. Box 196612 Anchorage Alaska, 99519 - 6612 (907) 561-5111 Dear Tom' Re: Sundry Notice for NK-28 Conversion from Producer to Injector BP Exploration Alaska, Inc. proposes to convert well NK-28 from a shut-in producer to an active injector as part of the Niakuk development plans. Well NK-28 was drilled in July of 1996 as a conventional high angle well. The well has recently watered out and it is best suited to become a water injector to support offset producers in Segment 3 in the reservoir. These offset produces are in Section 22, Township 12N and Range 15E. As part of the injection plan produced water will be used initially and if needed we have the capability to use seawater in the future. These issues are included in the original Area Injection Order and are also included in the revised edition. Well NK-28 passed a tubing integrity test on 12/20/00. Currently, we are planning on doing a FCO with Hot Oil, obtain a static pressure survey, and perform a Mechnical Integrity Test. We plan to inject water as soon as this work is completed and the revised Area Injection Order is signed. If you have any questions concerning this Sundry Application, please don't hesitate to call me at 564-5359 or email me at warnerdw@bp.com. Sincerely, Dwight W. Warner Greater Prudhoe Bay - GPMA Production engineer, Niakuk Well' NK-28 SSSV-- NIP -- 169O2- 16903 16956- 16969- 16970- 16989- 1699O- 17004 17005 17105 2o85o 20900- 20950- 21361- PKR -- NiP -- NIP -- Perf ~ GPMA WEB Date' 10/18/99 NK,28 ] Well Type: PROD Orig Compltn: 7/30/96 Last W/O: Ref Log Date: 7/20/96 Angle @ TS: deg @ Angle @ TD: 58 deg @ 21405 Rev Reason: CO GLVS Last Update: 10/14/99 APl: 500292267800 SSSV Type: CAT I o SSSV Annular Fluid: DIESEL T Reference CDR Log: Last Tag: 20,920' SLM TD: 21361 ftKB Last Tag Date: 10/15/98 Max Hole 71 deg @ 13600 Angle: SafetY NOtes Date Note 7/31/96 Minimum ID: 3.750" OTIS XN NIPPLE @ 16989' General: Notes Date Note 7/31/96 Tubing Hanger: FMC NSS @ 34.5' MD 7/31/96 Well Status: ACTIVE Last Tag Depth @ 20415 Top Of Fluid Depth ~ 12475 Other(plugs, equip., etc.)- JEWELRY Depth TVD Type 2149 2065 SSSV 16892 7748 NIP 16902 7752 PKR 16969 7775 NIP 16989 7782 NIP 170047787 TT Description ID 4-1/2" HES SERIES 10 TRSSSV, ID=3.813" 3.810 'X' NIPPLE, ID = 3.813" 3.810 TIW HB-BP 9-5/8" X 4~1/2" PACKER AND ANCHOR LATCH ASSY, 4.010 ID=4.012" 'X' NIPPLE, ID = 3.813" 3.810 'XN' NIPPLE, ID = 3.725" 3.720 TUBING TAIL W/BAKER SHEAR SUB 4.000 CaSing Strings - All Size Weight Grade Top Btm Feet Description 13.375 72.00 L-80 0 7493 7493 PROD. CASING 9.625 47.00 L-80 0 17105 17105 PROD. CASING 7.000 29.00 L-80 16956 21361 4405 LINER Tubing Strings - All ] Size Weight Grade Top Btm Feet Description 4.500 12.60 L-80 0 17004 17004 TUBING Gas Lift Mandrels/Valves J Stn MD TVD Man Man VMfr VType VOD Latch Port TRO Date VIv Mfr Type Run Comment HES TB CA R-20 1.5 RA 0.250 2408 10/14/99 GLM HES TB HES R-20 1.5 RA 0.250 2417 10/14/99 GLM HES TB CA RDO-20 1.5 RA 0.380 0 2/8/98 GLM 1 8799 4839 2 14198 676O 3 16821 7724 Perforations Summary Interval TVD 20836- 9278- 9349 20986 Zone Status Feet SPF Date Type Comment 150 5 7/27/96 Depth shifted by ER on 8/27/97 !~.~LL DATA T:D: ~_/~,2~--.b23.. -..~ _ ; ~er aU Hole Size and ; Perfs :mt_,F~2q;~,-~ ZNTEGRiT'Y - PART Comments: ~ !5 min ; 30 min f~--~CH~_NiCAL iNTEGRITY - PART ~2 Cemenn Volumes :-&~t. Liner Cml vol to cover oerfs ~7 ~6-s~ ; Csz~mo9~' ; DV Produmtion Log: T.Tpe ; Evaluation Date: August 17, 2001 Subject: 10-403 PN 196-093 To: Commissions/File From: Jane Williamson NK-28 is proposed for conversion to WI. See Letter from Anne Shaw, and draft letter from AOGCC allowing for b~ injection into NK28 - prior to WIO expansion. Reviewed mechanical ifitegfity of well. Associated tops Top HRZ 19945' MD, 7660' TVD Top Kuparuk 20477'MD, 9116' TVD Perf20845-20995' MD, 9282-9353' TVD · · injection packer at 16902'. · The 13 3/8" is cemented to surface per cement calcs. MIT must be verified. ~~ No wells with bottom-hole locations with ¼ mi. of injector. CBL Excellent bond in 7" liner from 16728-20470', 20522'-20578', 20610'-21530' Cement volume for 9.625 production casing indicates a cement top at 13,800', well above the Jane Williamson bp BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 August 13,2001 Alaska Oil & Gas Conservation Commission 333 W. 7th Avenue, Suite 100 Anchorage, Alaska 99501 Attn: Cammy Taylor, Commissioner Jane Williamson, Engineer Jack Hartz, Engineer Bob Crandall, Geologist Re: Request for NK-28 Injection and Response to 8/1/01 AOGCC Request for Additional Data to Support the Revised Niakuk Area Injection Order 14 BP would like to request interim permission for 60 days to convert well NK-28 to water injection while we collate the data you require for the Revised Area Injection Order (AIO). As per our telephone conversation on August 7, we are supplying the information below to provide a better understanding of why a timely conversion is desired. The Niakuk accumulation is separated into Eastern and Western areas due to a complete loss of Kuparuk sand across the mid-field high (see Figure 3, Revised AIO first draft). In the Western accumulation, separate OWCs and production history indicates that Segment 1 is separated from Segment 3/5 (see Figure 4, Revised AIO first draft). This results in three main Niakuk pools: Segment 1, Segment 3/5, and Segment 2 (East Niakuk). Attachment 1 in this note depicts a net oil pore foot map for Western Niakuk, the sealing fault that separates Segment 1 from Segment 3/5, and the area of expansion for the Revised Area Injection Order. Production at Niakuk has been sustained by pressure maintenance. In Segment 3/5 this support has come from water injection in NK-15. Simulation work has demonstrated an opportunity to improve the depletion strategy for Segment 3/5 and advance the waterflood into more of a peripheral pattern. The first step in this involves converting NK-28 to injection. Although this well produced close to 2.0 MMBO, it cut water from its initial production and is currently watered out. Other conversions will be considered in the future to optimize recovery. RECEIVED Alaska Oil & Gas Cons. Anchorage Page 2 It is evident from material balance (see Attachment 2) that Segment 3/5 is in need of additional injection. The recently redrilled NK-08A has increased off-take by over 4,000 BOPD from the heart of Segment 3/5 (see Attachment 3). In addition, injectivity at NK- 15 has declined since being converted to produced water injection approximately one year ago. Included for your reference is a diagram showing the relative volumes of production and injection that are desired once NK-28 is converted to injection (see Attachment 4). Without injection support from NK-28, reserves will likely be left behind. Any additional water we can inject at the Niakuk field directly increases our water handling capacity at the LPC, thus boosting our overall GPMA oil rate. Having NK-28 on injection during our planned rework of our cretaceous injector LPC-02 will greatly alleviate the associated production impact. This work is scheduled for early September. Within the agreed 60-day period, we will provide you with the additional information for the revised Area Injection Order per our conversation on August 7. This includes the four geologic reservoir maps for net sand, porosity, hydrocarbon pore foot, and water saturation, as well as a more complete write up of the requested sections in your letter of August 1. Please let us know at your earliest convenience when we may commence injection into NK-28. Sincerely, Anne L. Shaw GPMA Team Leader cc' M. Cole - BP M. Evans - ExxonMobil J. Johnson- Phillips Alaska, Inc. M. Johnson- ExxonMobil G. Limb - Phillips Alaska, Inc. App ox,!mete location of reddiled Well NK~08A NK, t5 ~s current y the on!y njector m Segment 3i5 Attachment 1.. West Niakuk OpF Map CO~¥ersio~ candidate Sealing Fault segment 3/5 Segment (sections 40000 8000 35000 30000 25OOO 20000 1O000 5000 0 Jan-93 ~lnjection (RBD) Niakuk Reservoir Material Balance, Segment 3/5 --F~.× (RBD) .... GOR (~cfpbo) $~gmefit 3~ iS Currently ShOd on Jan-94 Jan-95 Jan-96 Jan-97 Jan.98 Jan-99 Jan-O0 Jan-01 7000 6000 5000 3000 2000 ~000 0 Niakuk Production History, Segment 3/5 -o~ eO~D --~--~Weter BVVPD --Oas MCFPO Jan-93 Jan*94 Jan-95 Jan-96 Jan-97 Jan~96 Jan-99 Jan-00 Jan-01 West Niakuk Production and Desired Injection (RBPD) conversion ~ Ac~ tire ~ !njector Z ACtive F~jector ~lnjection ~Produc~ion RBPD I Segment 3/5 x--' ALASKA 0IL AND GAS CONSERVA~iON COM~I~SSION TONY KNOWLES, GOVERNOR 333 W. 7TM AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 ADMINISTRATIVE APPROVAL NO. AIO 14.001 Re: Request for interim authorization to inject in Niakuk well NK-28. Anne L Shaw BP Exploration Alaska, Inc. 900 East Benson Boulevard PO Box 196612 Anchorage, Alaska 99519-6612 Dear Ms. Shaw: BP Exploration (Alaska) Inc., ("BPXA") by letter dated August 13,2001 requested authorization for interim injection into well NK-28 to allow for water injection while gathering data and information to update the administrative record in support of the expansion of AIO 14. Expansion of AIO 14 is necessary for long-term allowance of water injection to recover greater volumes of oil from the Western Area of the Niakuk Oil Pool. Voidage replacement by waterflood in Segment 3/5 of the western portion of the Niakuk Pool is not being maintained. BPXA proposes to convert well NK-28 to injection status. The well had produced 2 MMBO, but has watered out. Increase in water injection will improve pressure support in this area and will increase overall production and reserves. In addition, the conversion allows better utilization of water production into the LPC, and in the near term, will alleviate production impacts associated with planned workover of Cretaceous water disposal well LPC-02. BPXA has assured the commission that additional information in support of the request to expand AIO 14 is forthcoming. However, in the interim, the commission authorizes the use of NK-28 for injection for enhanced recovery operations consistent with AIO 14. This administrative approval will expire on November 1,2001. DONE in Anchorage, Alaska and dated August 20, 2001. Cammy Oechsli Taylor Chair BY ORDER OF THE COMMISSION DCommissioner an iel T. 'Sea mount, Jr ~&N ~"~ ION · . ALASKA OiL & GAS-'CON'SERV'ATION -COMMISSION 333 W. 7TH AVE, SUI'TE 100 ANCHORAGE, AK 99501.-3539 FACSIMILE TRANSMITTAL SHEET FAX NUMBER: -- , . · TOTAL NO. 6F PAGES INCLUDING COVER: PHONE NUMBER: SENDER'S REFERENCE NUMBER: ' YOUR REFERENCE NUMBER: [] FOR REVIEW. - [] PLEASE COMMENT [] PLEASE REPLY .. · . - . . [] 'URGENT NO'IF.S/COMMENTS: [] PLEASE RECYCLE PHONE NO. (907) 279-1433 FAX NO. (907) 276-7542 AI, ASILA OIL AND GAS CONSERYA~ION COMMISSION TONY KNOWLES, GOVERNOR 333 W. 7TM AVENUE, SUITE 100 ANCHORAGE, ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 ADMINISTRATIVE APPROVAL NO. AIO 14.001 Re: Request for interim authorization to inject in Niakuk well NK-28. Anne L Shaw BP Exploration Alaska, Inc. 900 East Benson Boulevard PO Box 196612 Anchorage, Alaska 99519-6612 Dear Ms. Shaw: BP Exploration (Alaska) Inc., ("BPXA") by letter dated August 13,2001 requested authorization for interim injection into well NK-28 to allow for water injection while gathering data and information to update the administrative record in support of the expansion of AIO 14. Expansion of AIO 14 is necessary for long-term allowance of water injection to recover greater volumes of oil from the Western Area of the Niakuk Oil Pool. Voidage replacement by waterflood in Segment 3/5 of the western portion of the Niakuk Pool is not being maintained. BPXA proposes to convert well NK-28 to injection status. The well had produced 2 MMBO, but has watered out. Increase in water injection will improve pressure support in this area and will increase overall production and reserves. In addition, the conversion allows better utilization of water production into the LPC, and in the near term, will alleviate production impacts :associated with planned workover of Cretaceous water disposal well LPC-02. BPXA has assured the commission that additional information in support of the request to expand AIO 14 is forthcoming. However, in the interim, the commission authorizes the use of NK-28 for injection for enhanced recovery operations consistent with AIO 14. This administrative approval will expire on November 1,2001. Cammy Oechsli Taylor Chair BY ORDER OF THE COMMISSION DONE in Anchorage, Alaska and dated August 20-, 2001. ,- ~;~}isT~i~ne;rm°Unt'.!r'r / STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of request: Abandon_ Suspend_ Operational shutdown _ Re-enter suspended well _ Conversion Conversion from Alter casing _ Repair well _ Plugging _ Time extension _ Stimulate _ f/Prod to Inject Prod to Inject Well. Change approved program _ Pull tubing _ Variance _ Perforate _ Other _X 2. Name of Operator '; - .... j.' ": 5. Type of Well: 6. Datum elevation (DF or KB feet) BP Exploration (Alaska), In~. .. Development__X RKB 60.3 feet 3. Address Exploratory__ 7. Unit or Properly name P. O. Box 196612 Stratigraphic__ ~c,-'t .. Anchorage, AK 99519-6612 Service__ Niakuk ~ ' ICF'x-~ (~'~-~d' 4. Location of well at surface 8. Well number 1258' FSL, 1111' FEL, Sec. 36, T12N, R15E, UM ~' (asp's 721453, 5979790) NK-28 At top of productive interval 9. Permit number / approval number 2942' FSL, 3369' FEL, SEC 22, T12N, R15E, UM (asp's n/a) 196-093 At effective depth 10. APl number 2362' FNL, 1926' FWL, Sec. 22, T12N, R15E, UM (asp's 708295, 5991637) 50-029-22678 At total depth 11. Field / Pool 2101' FNL, 1641' FWL, Sec 22 T12N, R15E, UM (asp's 708002, 5991889) Niakuk Oil Pool 12. Present well condition summary Total depth: measured 21405 feet Plugs (measured) true vertical 9564 feet Effective depth: measured 21318 feet Junk (measured) TD Tag @ 20955' (02/06/1998) true vertical 9518 feet Casing Length Size Cemented Measured Depth True vertical Depth Conductor 80' 20" 260 sx AS (Approx.) 120' 120' Sudace 7452' 13-3/8" 2360 sx PF 'E', 1065 sx 7493' 4351' 'G', 260 sx PF 'C' Intermediate 17069' 9-5/8" 900 sx Class 'G' 17106' 7821' Liner 4449' 7" 475 sx Class 'G' 16956' - 21405' 7771' - 9565' Perforation depth: measured Open Perfs 20845' - 20995' JUL 2 7 2_001 true vertical Open Perfs 9282'- 9353' Alaska 0il & Gas Cons. 60n~rnissi0n Tubing (size, grade, and measured depth 4-1/2", 12.6#, L-80 TBG @ 16904' MD. Tubing Tail @ 17004'. Anchorage Packers & SSSV (type & measured depth) 7" x 4-1/2" Packer @ 16904' MD. 4-1/2" SSSV LN @ 2149' MD. , 13. Attachments Description summary of proposal __X Detailed operations program __ BOP sketch __ 14. Estimated date for commencing operation 15. Status of well classification as: July 28, 2001 16. If proposal was verbally approved Oil __ X Gas __ Suspended __ Name of approver Date approved Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Questions? Call Dwight Warner @ 564-5359. Signed Title: Niakuk Petroleum Engineer Date July 25, 2001 Dwi~lht Warner Prepared by DeWayne R. Schnorr 564-5174 FOR COMMISSION USE ONLY Conditions of approvah Notify Commission so representative may witneSSplug integrity_ BOP Test Location clearance I Appr°val n°' 30 ] ' Mechanical IntegriJ~,~.est,]~ _~ .. .,,4~uj~sequentform required 10- *~',.-, Approved by order of the Commi Commissioner Date Form 10-403 Rev 06/15/88 · SUBMIT IN TRIPLICATE STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed; Operation shutdown_ Stimulate_ Plugging_ Perforate_ Conversion Prod to Injector Pull tubing _ Alter casing _ Repair well _ Other_X Conversion P - I 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF or KB feet) BP Exploration (Alaska), Inc. Development__ RKB 60 feet 3. Address Exploratow__ 7. Unit or Properly name P. O. Box 196612 Stratigraphic__ Anchorage, AK 99519-6612 Service__X Niakuk Unit 4. Location of well at surface 8. Well number 4021' FNL, 1111' FEL, Sec. 36, T12N, R15E, UM (asp's 721453, 5979790) NK-28 At top of productive interval 9. Permit number / approval number 2337' FNL, 3369' FEL, Sec. 22, T12N, R15E, UM (asp's 708278, 5991661) 196-093 At effective depth 10. APl number 2362' FNL, 3352' FEL, Sec. 22, T12N, R15E, UM (asp's 708295, 5991637) 50-029-22678 At total depth 11. Field / Pool 2101' FNL, 3637' FEL, Sec. 22, T12N, R15E, UM (asp's 708002, 5991889) Niakuk Oil Pool 12. Present well condition summary Total depth: measured 21405 feet Plugs (measured) true vertical 9564 feet Effective depth: measured 21318 feet Junk (measured) TD Tagged @ 20955' (02/06/1998) true vertical 9518 feet Casing Length Size Cemented Measured Depth True Vertical Depth Conductor 80' 20" 260 sx AS (Approx.) 120' 120' Surface 7452' 13-3/8" 2360 sx PF 'E', 1065 sx 7493' 4351' 'G', 260 sx PF 'C' Intermediate 17069' 9-5/8" 900 sx Class 'G' 17106' 7821' Liner 4449' 7" 475 sx Class 'G' 16956' - 21405' 7771' - 9565' Perforation depth: measured Open PerfsRECEIVED true vertical Open Perfs 9282'- 9353' bEC ~. 0 L?001 Tubing (size, grade, and measured depth) 4-1/2", 12.6#, L-80 TBG @ 16904' MD. Tubing Tail @ 17004'. Alils~0il&CasC0~s. Oo~Dissi0D Anchorage Packers & SSSV (type & measured depth) 7" x 4-1/2" Packer @ 16904' MD. 4-1/2" SSSV LN @ 2149' MD. 13. Stimulation or cement squeeze summary Intervals treated (measured) (see attached) Treatment description including volumes used and final pressure 14. Representative Daily Averaqe Production or Injection Data OiI-Bbl Gas-Mcr Water-Bbl Casing Pressure Tubing Pressure Prior to well opera 8/18/2001 Well shut-in. Water Injection started on 08/21/2001. Subsequent to op~ 8/23/2001 10971 1920 15. Attachments 16. Status of well classification as: Copies of Logs and Surveys run__ Daily Report of Well Operations __ Oil __ Gas __ Suspended __ Service Water Injection 17. I hereby cer-[ify that the foregoing is true and correct to the best of my knowledge. ~'/~~¢~~~~ Title: Technical Assistant Date Decemb,_er 10, 2001 DeWayne R. Schnorr ~ Prepared by DeWayne R. Schnorr 564-5174 Form 10-404 Rev 06/15/88 · ORlgI AL RBD S BF[ SUBMIT IN DUPLICATE 07/30/2001 08/03/2001 08/05/2001 08/10/2001 08/11/2001 08/12/2001 08/12/2001 08/13/2OO 1 08/30/2001 09/01/2001 07/30/01 08/03/01 08/05/01 08/10/01 08/11/01 08/1 2/O 1 08/1 2/01 08/13/01 08/30/01 09/01/01 NK-28 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS SBHP/FBHP SURVEY: DRIFT TUBING / SBHPS ASPH/PARAFIN REMOVAL: HOT OIL TBG ASPH/PARAFIN REMOVAL: PARRAFIN CLEANOUT SBHP/FBHP SURVEY: STATIC SURVEY W/PETREDAT GAUGES SBHP/FBHP SURVEY: STATIC SURVEY W/PETREDAT, DUMMY OFF GLV'S INJECTION CONVERSION: DUMMY OFF GLV'S FOR INJECTION CONVERSION INJECTION CONVERSION: LOAD AND TEST IA. INJECTION CONVERSION: PUMP SEAWATER, MEOH FOR INJECTIVITY TEST INJECTION CONVERSION: MITIA TO 2500 PSI INJECTION CONVERSION: AOGCC REQUIRED MIT IA PASSED EVENT SUMMARY DRIFTED TUBING W/1 3/4" SAMPLE BAILER. SET DOWN @ 3230' SLM. OOH W/SAMPLE OF HYDRATED PARAFIN. PUMPED 50 BBLS CRUDE DOWN IA @1 BPM @ 180. PRESSURE UPON TBG TO 3000. TBG IS PLUGGED UP. RIH W/2.5 JSN WHILE CIRC HOT DEAD CRUDE, HIT HARD SPOT AT 3320 AND WORK DONW TO 3524. PUMPED 243 BBLS CRUDE. POOH PUMPING 34 50/50 MW. CHANGE TO 2.25 DJN. RIH. CUT THROUGH 1500' PARAFFIN (3500 - 5000'). CON'T PUMPING WHILE DRIFITNG TO GLM #2 @ 14198'. POOH. *** LEFT WELL SI & TURNED OVER TO DSO. READY FOR SLICKLINE *** RUN IN HOLE W/3.625" CENT, TEL, AND PETREDAT STATIC SURVEY RUN PETREDAT STATIC SURVEY STOP @ (20566' MD - 9100 TVD, 20798' MD - 9200 TVD, 20566' - 9200 TVD) PRESSURE AT 20798' WAS 3995 PSI -- SET 4-1/2 XN- CATCHER @ 16,860' WLMD -- PULL VALVES FROM GLM'S -- 3 -- 2 -- 1, -- SET DGLV'S IN STA. # I & 2, STAND-BY FOR PUMP TRUCK. PUMP SEA WATER 800 BBLS. AND 120 BBLS OF DIESEL-- RIH TO SET DUMMY VALVE IN GLM # I @ 16,821' MD. SECOND ATTEMPT SET VALVE. VECO RIGS UP PUMP IN SUB ABOVE SWAB. LOAD AND TEST IA. PUMP SEAWATER, MEOH FOR INJECTIVITY TEST. MITIA PASSED TO 2500 PSI MIT IA PASSED. WITNESSED BY AOGCC INSPECTOR JOHN CRISP. Page 1 NK-28 DESCRIPTION OF WORK COMPLETED NRWO OPERATIONS FLUIDS PUMPED BBLS I PRESSURE TEST LUBRICATOR W/1 BBL OF DIESEL, (1 TESTS) 461 50/50 METHANOL WATER 1112 DIESEL 763 CRUDE 1311 SEA WATER 3648 TOTAL Page 2 Ol' ]3gFORg W c:LOt~,~v~M.DOC ARCO (ALASKA) Survey No. 27525 NK-28 N IAKU K, AK Performed by: KINLEY October 15, 1998 RECEIVED NOV 0~ 1998 Oit & Ga~ Oan~. Cornmi'~ian Caliper Specialists Since 1953 5815 Royalton, Houston, Texas 77~1-~~3 U.S.A. Phone (71 3) 654-45~e~ Telefax [71 3) 664-1037 SERVICE AVAILABLE WORLDWIDE WITH ALL KINLEY WlRELINE TOOLS Calipers · Tubing Perforators · Sand Line Cutters · Power Jars · Measuring Line Cutters ~.K!NLEY SURVEY INTERPRETATION COMMON ABBREVIATIONS L.U. = Lower Upset U.U. = Upper Upset u.B. = upper Body m.B. = middle Body I.B. = lower Body Corr. = Corrosion Dep. = Deposits Scatd. = Scattered Shall. = Shallow TABULATION SHEET JOINTS are numbered from the top down. Numbering starts with the first full length joint below the well head. PUP JOINTS SPECIAL TOOLS & NIPPLES GAS LIFT MANDRELS are designated by decimal numbers. For example, Joint #32.1 represents the first pup Joint below Joint #32. are designated by letters. For example, "B" is the second special tool or nipple from the top of the well. are numbered down from the top. For example: GLM(1), GLM(2), etc. TABULATION SYMBOLS We use a circle as the basic tabulation symbol. The Kinley Caliper records the simultaneous action of ali fifteen or thirty feelers. Our survey, therefore, has either 15 or 30 recordings. These lines provide a view around the circumference of the inner surface of the pipe. A complete circle on the tabulation sheet indicates that at least 14 of 15 feelers or 28 of 30 feelers found tubing wall reductions at the same depth on the well. This would be described as a ring. The number of feelers that indicate tubing wall reductions at the same depth is also noted on the tabulation sheet. For a 15 Feeler Caliper E~ 3to5 ~'~ 6to9 ~ 10to13 ~ 14to15 For a 30 Feeler Caliper ~ 6toll ~'~ 12to19 ~ 20to27 L:~ 28to30 MEASUREMENT SYMBOLS PIT A number alone represents the depth of penetration expressed in hundredths of an inch of the deepest pit. In this example 0.08". RING A groove around the pipe found by 14 of 15 feelers or 28 of 30 feelers. The number inside the circle represents the maximum depth of the ring expressed in hundredths of an inch. A PARTIAL RING A groove around the pipe found by 3 to 13 of 15 feelers or 6 to 27 of 30 feelers. The number inside the partial circle represents the maximum depth of the ring expressed in hundredths of an inch. NO Indicates no damage was found in that joint. COMMENT Arco Alaska, Inc. Niakuk, AK NK - 28 October 15, 1998 Survey No. 27525 APl #500222678 4 1/2" Tubing Chart No. BG073 7" Liner Chart No. BG065 2:1 Feeler Ratio This is the first survey of this well to be made with the Kinley Megadata Caliper. The condition of the internal surface of the 4 1/2" 12.6# Buttress tubing from approximately 3,547' to 16,970' (WLM) and the 7" 29# Yam liner in the well, from approximately 17,005' to 20,920' (WLM), is covered in this report. 4 ~" 12.6# Tubing The deepest penetrations recorded in the 4 ~" tubing are isolated pits located in the upper body of Joint #213. These penetrations measure 0.06" or 22% of the tubing wall thickness. A cross-sectional drawing and a photocopy of the recordings for Joint #213, at the location of the damage, are included in this report. With the exception of Joint #213, the condition of the tubing surveyed and analyzed appears good with respect to corrosive damage. However, indications of minor corrosive damage are recorded in a number of joints in the forms of isolated shallow pits, lines of shallow pits, lines of shallow corrosion and areas of shallow corrosion. The pup joints associated with the tool assemblies and gas lift mandrels in the well are given individual decimal numbers for future reference. Indications of minor corrosive damage are recorded in a few of these joints. Photocopies of the recordings for representative assemblies are included in the report. 7" 29# Liner The deepest penetrations recorded in the 7" liner are isolated pits located in Joint #1. These penetrations measure 0.12" or 29% of the liner wall thickness. A cross-sectional drawing and a photocopy of the recordings for Joint #1, at the location of the damage, are included in this report. With the exceptions of Joint #'s 1, 93, 95, 96 and 97, the condition of the liner surveyed and analyzed appears good with respect to corrosive damage. However, indications of minor corrosive damage are recorded in some joints in the forms of isolated shallow pits, lines of shallow pits and lines of shallow corrosion. Arco Alaska, Inc., Continued Niakuk, AK NK - 28 Page 2 Survey No. 27525 Projections and deposits are recorded in a number of joints throughout the liner surveyed. These projections and deposits range from negligible amounts to heavy buildup on the internal surface of the tubing. CALIPER TECHNICIAN Ken Bulloch SURVEY ANALYST Mina Tahtouh mt Distribution: ARCO ALASKA, INC., Central Files, ATO-370, P. O. Box 100360, Anchorage, AK 99510-0360 (1 R) ARCO ALASKA, INC., GPMA Files & DS Engr., C/O L.S. Lahrson, ATO-492, P. O. Box 100360, Anchorage, AK 99510-0360 (2R) ARCO ALASKA, INC., AOGCC, Lod Taylor, P. O. Box 100360, Anchorage, AK 99510- 0360 (1 R) Chart received: 10-19-98 R. eport mailed: 10-22-98 KINLE. ZALIPER TALLY SHEL. ' (Composite) © Copyright Kinley Corporation 1998 N K-28 NIAKUK, AK Survey # 27525 October 15, 1998 Run: 1 Section: 1/1 Chart #: BG073 Pipe: 4 1/2" 12.6# BU-I-I'RESS Feeler Ratio: 1:1 Body (In.): 0.271 Upset (In.): 0.271 Penetrations Over 85%(Possible Hole) # of Jts Penetrations 41 - 85% (Poor) Penetrations 21 - 40% (Fair) JT.#'s 213 Penetrations 11 - 20% (Good) Penetrations 1-t0% (VeryGood) 15 50 No Penetrations Recorded 355 TOTAL JOINTS SURVEYED: 421 (Includes 14 Pup Joints) NK-28 NtAKUK, AK Survey # 27525 October 15, 1998 Ey CORROSION Run: Chart #: BG073 Feeler Ratio: 1:1 Pipe: 4 1/2" 126# BU%FRESS Body (In.): 0,271 Upset (in.): 0.271 BODY PENETRA 7-10NS CORROSIVE DAMAGE FREQUENCY DISTRIBUTIONS MAXIMUM PENETRATION I__ NUMBER OF JOINTS % V[LALL LOSS CONFIGURA T.!ON NUMBER OF JOINTS DESCR/PT/ON SAFETY VALVE ASSEMBLY (,4) FIRS T JOINT ANAL YZED ~ GLM (~) GLM (2) THROUGH (D) ,9,so' WLM % WALL LOSS 20 40 60 80 100 KINLE OSS-SECT[ONAL NK-28 Run: 1 4 1/2" 12.6¢ BUTTRESS NIAKUK, AK Joint #: 213 4.500(In.) O.D. Survey # 27525 Position: 1 3.958(In.) I.D. October 15, 1998 13 0.00 ~4 O. O0 ~5 0.06 16 0.00 17 0.00 18 0.00 19 0.00 9 8 10 7 0.00 0.00 11 0.00 0.00 6 0.00 0.00 12 5 O, O0 O. O0 20 27 0.00 0. o0 21 26 0,00 22 25 0,0o 23 24 0,00 0.00 0.00 0,00 4 0,00 3 0.00 2 0.00 0.00 3O 0.00 29 0,00 28 0,00 JOINT#213 PITS UPPERBODY 0.06"=22% Percent Area Reduction: = 0.55 % Total Area Remaining = 3.58 Sq. ln, KINLEY C LIPER JOINT TAB UI . ION SHEET © Copyright Kinley Corporation 1998 NK-28 NIAKUK, AK Survey # 27525 October 15, 1998 Run: 1 Section: 1/1 Chart #: BG073 Pipe: 4 1/2" 12.6# BU-I-f'RESS Feeler Ratio: 1:1 Body (In.): 0.271 Upset (In.): 0.271 MAXIMUM MAXIMUM ~ UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION o PROFILE ( '/, WALL) NO % INCHES % INCHES COMMENTS .-.-.'4~- BODY 1 - UPSET 0 1 IPup Jt.; Jt. #'s 0.1 through 86 are not recorded 1 1st full length Jt. below Tree 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2O 21 22 23 24 25 26 27 28 29 3O 31 32 33 34 35 36 37 38 39 4O 41 42 43 44 45 46 47 48 49 K NLEY ¢ -L PER JOINT TAB ULA. iON SHEET © Copyright Kinley Corporation 1998 NK-28 Run: 1 Section: 1/1 NIAKUK, AK Chart #: BG073 Pipe: 4 1/2" 12.6# BU'I-rRESS Survey #27525 Feeler Ratio: 1:1 Body (In.): 0.271 October 15, 1998 Upset (In.): 0.271 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION -~-~-_~- o PROF1LE tee NO % INCHES % INCHES COMMENTS ~- BODY ~ - UPSET 50 51 51.1 Pup Jt.; Safety Valve Assembly (A) 51.2 Pup Jt. 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 7O 71 72 73 74 75 76 78 79 8O 81 82 83 84 85 86 87 1st full length Jr. analyzed 88 89 90 91 92 93 94 95 96 97 KINLEY .LIPER JOINT TAB ULA. ION SHEET ,D Copyright Kinley Corporation 1998 NK-28 Run: 1 Section: 1/1 NIAKUK, AK Chart #: BG073 Pipe: 4 1/2" 12.6# BUTTRESS Survey # 27525 Feeler Ratio: 1:1 Body (In.): 0.271 October 15, 1998 Upset (In.): 0.271 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION'~-~-~ NO % INCHES % INCHES COMMENTS '~ - BODY ~ - UPSET (% WALL) 98 99 100 101 102 103 104 105 106 107 108 109 110 iii 111 112 ii 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 7 0.02 Shallow pits u.B. 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 7 0.02 Shallow pits u.B. KINLEY C _£1PER JOINT TAB ULA ION SHEET © Copyright Kinley Corporation 1998 NK-28 Run: 1 Section: 1/1 NIAKUK, AK Chart #: BG073 Pipe: 4 1/2" 12.6# BUTTRESS Survey # 27525 Feeler Ratio: 1:1 Body (In.): 0.271 October 15, 1998 Upset (In.): 0.271 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION o PROFILE NO % INCHES % INCHES COMMENTS ~ - BODY ~- UPSET (% WALL) 148 149 7 0.02 IShallow corr. 150 7 0.02 Shallow pits u.B. 151 7 0.02 Line of shallow pits 152 153 7 0.02 Line of shallow pits 154 7 0.02 Line of shallow pits 155 156 157 158 159 160 7 0.02 ;Scatd. shallow pits 161 7 0.02 Line of shallow pits 162 7 0.02 Scatd. shallow pits 163 7 0.02 Shallow corr. 164 7 0.02 Shallow pits I.B. 165 11 0.03 Shallow pits u.B. 166 167 , 7 0.02 Scatd. shallow pits 168 11 0.03 Shallow pit I.B. 169 170 7 0.02 Scatd. shallow pits 171 7 0.02 Shallow pits u.B. 172 173 7 0.02 Shallow pits u.B. 174 7 0.02 Shallow pits u.B. 175 7 0.02 Shallow pits u.B. 176 177 178 179 180 7 0.02 Shallow pits I.B. 181 7 0.02 Shallow pits u.B. 182 7 0.02 Shallow corr. 183 184 185 186 7 0.02 Shallow pits u.B. 187 7 0.02 Shallow pits u.B. 188 7 0.02 ILine of shallow pits 189 7 0.02 Shallow pits u.B. 190 191 192 193 194 7 0.02 Shallow pits u.B. 195 7 0.02 Shallow pits u.B. 196 197 KINLEY £ LIPER JOINT TAB UI ._ ION SHEET © Copyright Kinley Corporation 1998 NK-28 Run: 1 Section: 1/1 NIAKUK, AK Chart #: BG073 Pipe: 4 1/2" 12.6# BUTTRESS Survey # 27525 Feeler Ratio: 1:1 Body (In.): 0.271 October 15, 1998 Upset (In.): 0.271 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION -~-~ o PROFILE ~oo NO % INCHES % INCHES COMMENTS ~- BODY I- UPSET (%WALL) / 198 199 200 7 0.02 Scatd. shallow pits 201 7 0.02 !Shallow pits u.B. 202 7 0.02 Shallow corr. 2O3 2O4 2O5 2O6 207 7 0.02 Shallow pits I.B. 2O8 2O9 '210 211 212 7 0.02 Shallow pits u.B. 212.1 18 0.05 Line of shallow corr.; Pup Jt.; GLM (1) 212.2 18 0.05 Line of shallow corr.; Pup Jt. 213 22 0.06 :Pits u.B. 214 215 216 217 218 219 7 0.02 Shallow pits I.B. 22O 221 222 223 224 7 0.02 Scatd. shallow pits 225 14 0.04 Line of shallow pits I.B. 226 18 0.05 Line of shallow pits u.B. 227 7 0.02 Shallow pits u.B. & I.B. 228 7 0.02 Shallow pits I.B. 229 7 0.02 Line of shallow pits 230 231 7 0.02 Shallow pit u.B. !232 233 7 0.02 Shallow pits m.B. 234 235 236 237 238 239 24O 241 242 243 244 245 KINLEY C IPER JOINT TAB ULA ON SHEET © Copyright Kinley Corporation 1998 NK-28 Run: 1 Section: 1/1 NIAKUK, AK Chart #: BG073 Pipe: 4 1/2" 12.6# BUTTRESS Survey #27525 Feeler Ratio: 1:1 Body (In.): 0.271 October 15, 1998 Upset (In.): 0.271 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION o PROFILE 246 7 0.02 ~Shallow pit I.B. ' 247 248 11 0.03 Shallow pits u.B. 249 25O 251 252 253 254 255 256 257 258 259 26O 261 262 263 264 265 266 ~267 268 7 0.02 Shallow pits u.B. 269 27O 271 272 273 274 275 276 277 ,278 279 28O 281 282 283 284 285 286 287 288 !289 29O 291 292 293 294 295 KINLEY C _LIPER JOINT TAB ULA. ION SHEET © Copyright Kinley Corporation 1998 NK-28 Run: 1 Section: 1/1 NIAKUK, AK Chart #: BG073 Pipe: 4 1/2" 12.6# BUTTRESS Survey # 27525 Feeler Ratio: 1:1 Body (In.): 0.271 October 15, 1998 Upset (In.): 0.271 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION'~-%~.*'! o PROFILE ~oo NO % INCHES % INCHES COMMENTS '~ - BODY 1 - UPSET (% WALL~ 296 297 298 299 3OO 301 3O2 3O3 3O4 305 3O6 3O7 3O8 3O9 310 311 312 313 7 0.02 Shallow pits u.B. 314 315 316 317 318 319 11 0.03 Shallow pits I.B. 321 322 11 0.03 Line of shallow pits I.B. 323 7 0.02 Scatd. shallow pits !324 7 0.02 Scatd. shallow pits 325 326 327 328 11 0.03 Shallow pits m.B. 329 330 331 332 333 334 335 336 337 338 339 11 0.03 Shallow pit u.B. 340 341 342 ,342.1 iPup Jt.; GLM (2) 342.2 11 0.03 Line of shallow pits; Pup Jt. 343 KINLEY C~._~IPER JOINT TAB ULA ~ ~ ON SHEET © Copyright Kinley Corporation 1998 NK-28 Run: 1 Section: 1/1 NIAKUK, AK Chart #: BG073 Pipe: 4 1/2" 12.6# BUTTRESS Survey # 27525 Feeler Ratio: 1:1 Body (In.): 0.271 October 15, 1998 Upset (In.): 0.271 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION ....... o PROFILE ~oo NO % INCHES % INCHES COMMENTS ~'~.~- BODY ~- UPSET (% ALL) J 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 7 0.02 Shallow pits u.B. 365 366 367 368 369 370 371 7 0.02 Shallow pits u.B. & m.B. 372 7 0.02 Shallowpit u.B. 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 KINLEY C_£1PER JOINT TAB ULA. iON SHEET © Copyright Kinley Corporcaion 1998 NK-28 Run: I Section: 1/1 NIAKUK, AK Chart #: BG073 Pipe: 4 1/2" 12.6# BUTTRESS Survey # 27525 Feeler Ratio: 1:1 Body (In.): 0.271 October 15, 1998 Upset (In.): 0.271 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION PROFILE NO % INCHES % INCHES COMMENTS ~-,'--~ - BODY l- UPSET I (% WALL) I 394 I 395 396 397 7 0.02 Shallow pits I.B. 398 7 0.02 Shallow pits u.B. 399 400 401 7 0.02 Shallow pits u.B. 402 403 404 405 11 0.03 Shallow pits u.B. & I.B. 405.1 11 0.03 Shallow pits u.B. & I.B.; Pup Jt.' GLM (3) 405.2 Pup Jt. 406 406.1 Pup Jr.; "X" Nipple Assembly (B) 406.2 Pup Jt.; Packer Assembly (C) 406.3 Pup Jt. 407 407.1 11 0.03 Line of shallow pits; Pup Jr.; "X" Nipple Assembly (D) 407.2 Pup Jt.; Survey ends in Pup Jt. #407.2 @ 16970' (WLM) ,. KINLEi ALIPERTALLYSHE _ (Composite) © Copyright Kinley Corporation 1998 N K-28 NIAKUK, AK Survey # 27525 October 15, 1998 Run: 2 Section: 1/1 Chart #: BG065 Pipe: 7" 29.# VAM Feeler Ratio: 2:1 Body (In.): 0.408 Upset (In.): 0.408 Penetrations Over 85%(Possible Hole) # of Jts Penetrations 41 - 85% (Poor) Penetrations 21 - 40% (Fair) JT.#'s 1 93 95 Penetrations 11 - 20% (Good) Penetrations 1 - 10% (Very Good) 96 97 11 No Penetrations Recorded 73 TOTAL JOINTS SURVEYED: 97 CORROSION PRO LE © Capyright KinI~y Corporation 1998 N K-28 R un: 2 Section: 1/1 NIAKUK, AK Chart #: BG065 Pipe: 7" 29.# VAM Survey # 27525 Feeler Ratio: 2:1 Body (In.): 0.408 October 15, 1998 Upset (In,): 0408 BODY PENETRATIONS CORROSIVE DAMAGE FREQUENCY DISTRIBUTIONS MAXIMUM PENETRATION k NUMBER OF JOINTS % WALL LOSS CONFIGURA~ON NUMBER OF JOINTS DESG~IPTION 1STJT~ OF 7" LINER PERFS. IN JOINT #96 PERFS.; EOS ~1 20,920' WLM ~00 % WALL LOSS 20 40 60 80 100 NK-28 Run: 2 7" 29.# VAM NtAKUK, AK Joint #: 1 7.000(In.)O.D. Survey # 27525 Position: 1 6.184(In.) I.D. October 15, 1998 9 8 10 7 0.00 0,00 '1I 0.00 0.00 6 0, o0 0.00 12 5 0.00 O. 12 13 4 0,00 0.00 14 3 O. O0 O. O0 I5 2 0.00 0.00 16 1 o. 12 O. O0 I7 30 0.00 0.00 18 29 0,00 0.00 19 28 O. O0 O. O0 20 27 O. O0 O, O0 21 26 0.00 22 25 0.00 23 24 0.00 0.00 0.00 0.00 JOINT#1 PITS 0.12"=29% Pement Area Reduction: = 1, 13 % Total Area Remaining = 8. 35 Sq, In. KINLE ROSS. SECTIONAL ANALYSIS © Copyright Kitdey Corporation 1998 NK-28 Run: 2 7" 29.# VAM NIAKUK, AK Joint #: 93 7.000(In.) O.D, Survey# 27525 Position: t 6.184(1n.) i.D. October 15, 1998 12 0.00 ~4 0.00 15 0.00 16 0.00 I7 0.00 18 0.00 I9 0.00 2O 0.00 11 0,00 2t 0.00 9 8 10 7 0.00 0.00 0.00 0.00 22 25 23 24 0,00 O. 10 0.00 0.04 6 0.00 5 0,00 4 O. O0 3 0.00 2 0.00 0.00 $0 O. O0 2~ 0.00 28 0.00 27 26 0.06 O. O8 JOINT #93 LINE OF CORROSION O, 10" = 24% Percent Area Reduction: = 2, 18 % Total Area Remaining = 8.27 Sq. ln. KINLEY ROSS-SECTIONAL NK-28 Run: 2 7" 29.# VAM NIAKUK, AK Joint #: 95 7.000(In.) O.D, Survey # 27525 Position: ~ &184(Ira) I,D. October 15. 1998 9 8 I0 7 0.00 O. O0 11 o. oo o. oo 0.00 0.00 ¢2 5 O, O0 O. O0 13 4 0.00 0.00 ~4 0.00 0.00 15 2 0.00 0.00 0.00 0.00 17 30 0.00 0.00 18 29 O. O0 O, O0 19 28 0.00 O. 10 20 27 0.0o 21 26 0.08 o. o0 22 25 o. o8 23 24 0.00 0.06 0.00 0.00 JOINT#95 LINE OF CORROSION O, 10" = 24% Percent Area Reduction: = 2,37 % Total Area Remaining = 8,25 Sq. ln. KINLEY Cn,]PER JOINT TAB ULA ON SHEET © Copyright Kinley Corporation 1998 NK-28 Run: 2 Section: 1/1 NIAKUK, AK Chart #: BG065 Pipe: 7" 29.# VAM Survey # 27525 Feeler Ratio: 2:1 Body (In.): 0.408 October 15, 1998 Upset (In.): 0.408 MAXIMUM MAXIMUM UPSET/~AKEUP BODY DAMAGE JOINT PENETRATION PENETRATION PROFILE NO % INCHES % INCHES COMMENTS :~ - BODY I-UPSET ~ (%WALL)'~ 1 29 0.12 Pits; Short Jt. 2 1st full length Jt. of 7" Liner 3 Projections u.B. & Makeup 4 Projections u.B. & Makeup 5 Projections 6 Deposits 7 Deposits 8 Deposits 9 Deposits 10 Deposits 11 Deposits 12 Deposits 13 Deposits 14 9 0.04 Shallow pits I.B.; Deposits m.B. 15 Deposits 16 Projections m.B. 17 Projections I.B. 18 19 Deposits 20 Deposits 21 Deposits 22 Deposits 23 24 25 Projections u.B. 26 27 Projection u.B. 28 29 3O 31 32 33 34 35 36 37 38 39 4O 41 42 9 0.04 Scatd. shallow pits 43 I 9 0.04 Scatd. shallow pits; Projection I.B. 44 9 0.04 Line of shallow pits 45 46 47 48 49 Deposits 5O KINLEY Cn IPER JOINT TAB ULA_ ON SHEET © Copyright Kinley Corporation 1998 NK-28 Run: 2 Section: 1/1 NIAKUK, AK Chart #: BG065 Pipe: 7" 29.# VAM Survey # 27525 Feeler Ratio: 2:1 Body (In.): 0.408 October 15, 1998 Upset (In.): 0.408 MAXIMUM MAXIMUM UPSET/MAKEUP BODY DAMAGE JOINT PENETRATION PENETRATION ~---,~ o PROFILE ~oo NO % INCHES % INCHES COMMENTS ,~¢ - BODY 1 - UPSET I (% WALL) / 51 14 0.06 Shallow pits u.B. 52 Deposits 53 Light deposits 54 55 Slight projections I.B. 56 !Deposits 57 58 Projection I.B. 59 60 14 0.06 Shallow pits I.B. 61 62 63 64 65 66 67 68 69 7O 71 I 72 73 74 14 0.06 Shallow pits u.B. 75 76 77 78 79 8O 81 14 0.06 Shallow pits I.B. 82 9 0.04 Line of shallow corr. 83 14 0.06 Line of shallow corr. 84 14 0.06 Line of shallow corr. 85 9 0.04 Line of shallow pits 86 19 0.08 Line of shallow corr. m.B.; Line of shallow corr. (0.06") 87 9 0.04 Line of shallow corr. 88 14 0.06 Lines of shallow corr. 89 9 0.04 Shallow pits I.B. 90 91 14 0.06 Line of shallow corr.; Line of shallow pits m.B. (0.06") 92 19 0.08 Line of shallow corr.; Line of shallow pits m.B. (0.04") 93 24 0.10 Line of corr.; Deposits 94 19 0.08 Line of shallow corr.; Deposits 95 24 0.10 Line of corr.; Deposits 96 24 0.10 Line of corr.; Projections u.B.; Perforated interval 97 24 0.10 Line of corr.; Perforated interval; Survey ends in Jt. #97 @ 20920' SURVEY #27525 4 Yz" Tubing NIAKUK, AK .. . . JOINT #165 SHALLOW PITS LJPPER BODY NK-28 SURVEY #27525 · 4 ~" Tubing NIAKUK, AK -- G~.~(t) .......... :~ ~ L~INE OF SHALLOW PITS I~ PUP JOINT #'S 212.1 & ~12.2 SURVEY #27525 4 ¼" Tubing NIAKUK, AK ,d i il i i.,11 , i~ i ! ii JOINT #213 PITS UPPER BOD~ ~ ~ NK-28.. .. SURVEY #27~525 41/z" Tubing NIAKLII~ AK JOINT #225 LINE OF SHALLOW PITS LOWER BODY NK-28 SURVEY #27525 4 Yz" Tubing i - ~ ...... _ _ - -~ ~-'- · _.~ ~--. ~ _ __- --- -- ~ · i -- ~ .. .__ _ ~ _ JOINT fl'226 LINE OF SHALLOW_ PITS UPPER BODY NK-28 ..~ SURVEY #27525 4 Yz" Tubing NIAKUK, AK ... --- ~ ~ - ~. · i~ ~- ~ . ~ _ ....... . ....... ~ · SURVEY//27525 4 ,~" Tubing NIAKUK, AK NK-28 SURVEY #27525 4 Y2" Tubing NIA~UK, AK r - - ~ .... .' ~--T~ ~3 :-- - -- ~- ~-- ' .... PUP JOINT~40~.I NIPPLE ASS~M~BLY~(D) PUP~T. #407.2 ~ ~LINE OF SHALLOW PTTSjtN PuP JT. #407.1 ' SURVEY #27525 7" LINER - NIAKUK, AK NK-28 . ~- _ i i---- ~ -~ . [a - _ 7 .... . '~-- ~ -- -- . ~, . , , · il i _----' _u! - _ _ -~-- ~. -~ ~;__ ~___ ~ $1 , · _ _ ~ ~ . -._ .... ~ . _ ~_t_ -. ' .~~. ....... '2. _.._.~...... ~.~_...,.~_.~ .'~ .. -;~..~../.._'.~ ...... 7 ..... ~.~._.../....- . ~_.,; ............ '7.::;_~:.~...:-..:.-.~ :;. ~.~ . :. .. ~.....7.. ~.: ~ -'-- ~ , -.- - ~ ~ - ~ ~ ~"' _ -- ~ ~ - _' ~ 3 E -~- _E i.,-~1 ~ i ................................. ~ ............. : ............................................................................................... '. ................... , ............~ ............ - .... JO~INT #1 PITS IN SI~ORT JOINT ~1 ~ 2:1 FEELER RATIO SURVEY #27525 7" LINER NIAKUK, AK NK-28 - ' -- ~ --- ' _..~::~:..~r .... ~ - ...:. '... -' .:~ ~...~7.._.~.~iL...5 .......... ~.. 7 ~. ~ .7~ - ~~ ~.' -- - -" ·. ........... ~ ~ . . . ~L .Y_: .... ~_ :.~ . _ L...J. ~:~_:&.. 3..:~:~.~ ~ 25: C :~..~::: -.~. - ........... ._ _ ...... 3.:....i.~ ......... ._.: .................................................................................. : ............ ~ :.........:: ....... : ........ : .... -.. .. · _ . ~ .......... '_~-_ .... )~..~. -- .................... ~_ :---_" _ .............. ~ ................... ~ i{: ~ ~ .~..~3~ :_.~.~_ ' . .... - . . 7 ~ ............................................................................. ~ .............. ~ · ...... : ................... - . -'~'~:- _ . ~11.:~ ...~ :~ ........................... 7~_}..._..::.}}...~_ ~ ..... m ......... iL .-~.~.':.~ ..... ::_.: ~. :~ . -.3~_..'_ ...... ' .- C ..7 ~ ....... _... ' ~'2...~..~rT. iJ ...... ~_ _C .... ~ ..... ;~ ............................... 2 .... J .71 ~ ; ..... ~w:~ .: r~7~_~7.:. ..~_~:..~'~ - 7.~ ....................... ~ .... - JOINT #9 DEPOSITS ~ 2:1 FEELER RATIO SURVEY #27525 7" LINER NIAKUK, AK NK-28 · /- -- I Il · ' - IL I _ ~ l I I ii EE I: I _ : · I! I I ! 2-' I Il - I !1 U .... ~1- i llll . .. . .... ---- i - ....... Iai I · i~ J l_ Il ~ [ ~ i ii i _ jl i_ ! i ~ II l_ 11.7 ill J L_I Il . i . _E i . .~ _ J, i i JOINT ~93 -~ ~ co F os,o. OSITS . ~:1 FEELER RATIO SURVEY #27525 7" LINER NIAKUK, AK NK-28il . ~ - . . --- ...... ' I ---"- ,, .... · ' -- ' ......... ~- -- ----""" -- .... -- --- - - L_ .... - .... ............................ I ................ : ...... : ...................... . .......... _ . - . -- - ~.,.~ ...... 7.3 .....:3..T Z~.... ~ ~i.T. - ' ~ ---~ -"_---~£ Z_--~ ~ -- '- _,_1-- - _2 - ' ' ~l~--.L'-~ ....... ...... , ...... ' ~ .... - ....... -- - - '--- : ~: - · _ _ L -. -_ - ._ ___: _ ,~a - _ .. · , .... .............. _ . _! a _ - ___ .... _ ............ : ...................................................... : ......................... '- -- -- -.l~---' -~"lll'-----:'--" :- -- - -- ~ ----- ' "" '- ~ -- - · - .............................................................. - _ _ ; -: ..... ._ JOINT #95 ---., ~ = INE OF CORROSION / ~ ~ ~..j 2:1 FEELER RATIO SURVEY #27525 7" LINER NIAKUK, AK NK-28 AOGCC Individual Well Geological Materials Inventory PERMIT DATA T DATA PLUS Page: 1 Date: 07/07/98 RUN RECVD 96-093 7437 96-093 MAC/GR ~/~7500-21281 ~500-21281 1 08/23/96 1 08/23/96 96-093 SBT/GR/CCL 96 - 093 GR/CCL ~9000-21205 ~400-20560 1 08/23/96 1 08/23/96 96-093 GCT 6/20/96 R 0-8815 1 10/15/96 96-093 GCT 7/26/96 R 0-21250 i 10/15/96 96-093 GCT 6/20/96 ~D/0-8815 1 10/15/96 96-093 GCT 7/26/96 DL~O-21250 96-093 CDR-MD ~16900-21300 96-093 CDR-TVD ~/7750-9500 1 10/15/96 FINAL 10/11/96 FINAL 10/11/96 96-093 ADN-MD ~L~16900-21300 FINAL 10/11/96 96-093 ADN-TVD 96-093 7171 ~/~7750-9500 ~~CDR/~N FINAL 10/11/96 10/11/96 10-407 ~/ '" ~'' COMPLETION DATE ~.~'O/~ / / / / DAILY WELL OPS R ~/ %--/ ~/ TO )/3'/ /~/ ~/~0 ~ / Are dry ditch samples required? yes ~d received? ~ no Was the well cored? yes ~alysis & description received? Are well tests re~ired? yes ~Received? ~no Well is in compliance Ihitial CO~ENTS GeoQuest 500 W. International Airport Road Anchorage, AK 99518-1199 ATTN: Sherrie NO. 10476 Company: Alaska Oil & Gas Cons Comm Attn: .Hew~rd Ok!=nd ~-~r 3001 Porcupine Drive Anchorage, AK 99501 10/11/96 Field: Greater Point Mclntyre Area [Lisburne, L6-26, Pt. Mclntyre, and West Niakuk (NK-27/NK-28)] Floppy Well Job # Log Description Date BL RF Sepia Disk NK-28 96275 CDR~ADN 960720 1 NK-28 96275 CDR 960720 I 1 NK-28 96275 CDR-TVD 960720 1 1 NK-28 96275 ADN 960720 I 1 NK-28 96275 ADN-TVD 960720 I 1 · --. , SIGNED: Please sign and return one copy of this transmittal to Sherrie at the above address. Thank you. OCT 11 '199G DAT~aS~a Oil & Gas Cons. Commission ARCO Alaska Inc. Greater Point McIntyre Engineering Date: October 11, 1996 Subject: Transmittal Number 759 From: ARCO Alaska, Inc. To: Bob Crandall AOGCC 3001 Porcupine Drive Anchorage, AK 99501 The following Greater Point McIntyre Area data are enclosed. This information is confidential and your cooperation in maintaining confidentiality is appreciated: Well Name Data Description Run # Date Run Company NK-28 Diskette: Gyro Data -[Le~'- CD 1 7/26/96 gyrodata NK-28 Diskette: Gyro Data 1 6/20/96 gyrodata NK-28 Gyro Data Directional Survey Report I 6/20/96 gyrodata NK-28 Gyro Data Directional Survey Report Please sign one cop~d._~,.~~~ I 7/26/96 gyrodata and return to' GPMA Engr Aide, ATO-462 ARCO Alaska, Inc. P.O. Box 100360 Anchorage, Alaska 99510-0360 Transmittal Number: 759 Page: I STATE OF ALASKA ALASf,~-, OIL AND GAS CONSERVATION C,,..¢IMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well [] Oil [] Gas [] Suspended [] Abandoned [] Service 2. Name of Operator 7. Permit Number ARCO Alaska Inc. 96-93 3. Address 8. APl Number P.O. Box 196612, Anchorage, Alaska 99519-6612 50-029-22678 .. 4. Location of well at surface ~.*-_,.-~j.-,.~i~.;:_:.:_~...~;:~ .. 9. Unit or Lease Name 1258' NSL, 1112' WEL, SEC. 36, T12N, R15E ~ ..... ',,:',-~;~i',, , Niakuk Attop of productive interval i~',~-~I£>7', ~, ' ~i ,'~-'~J¢ .' 10. Well NumberNK.28 2942'At totalNSL'depth3369' WEL, SEC. 22, T12N, R15E ii~~'~:iCr-:IF'.j -~i :l. 3189' NSL, 3640' WEL, SEC. 22, T12N, R15E; ~ i ~J '~;''¢'~'~"~ 11. Field and Pool ................ ~_.2,~ ~'.'-¢'~-'~.~.,_~ Niakuk Oil Pool 5. Elevation in feet (indicate KB, DF, etc.) ]6. Lease Designation and ser'~.' KBE = 60.3'I ADL 034626 12. Date Spudded06/05/96 113' Date T'D' Reached J 14' Date C°mp" Susp" °r Aband'115' Water depth' if °ffsh°re 116' N°' °f c°mpleti°ns07/19/96 07/30/96 N/A. MSLI One 17. Total Depth (MD+TVD)118. Plug Back Depth (MD+TVD)I19. Directional Surveyl20. Depth where SSSV set~l. Thickness of Permafrosl 21405 9564 F-q 21318 9518 FT~ ~Yes I-INo I 2149' MD! 1800' (Approx.) 22. Type Electric or Other Logs Run Gyro, MWD, DLS, GR/CDR/ADN 23. CASING, LINER AND CEMENTING RECORD ,,, CASING SE'FI'lNG DEPTH HOLE SIZE WT. PER FT. GRADE TOP BO'I-I'OM SIZE CEMENTING RECORD AMOUNT PULLED 20". 94# H-40 Surface 120' 30" 260 sx Arcticset (Approx.) 13-3/8" 68# L-80 41' 7493' 16" 2360 sx PF 'E', 1065 sx 'G', 260 sx PF 'C' 9-5/8" 47# L-80 37' 17106' 12-1/4" 900 sx Class 'G' 7" 29# L-80 16956' 21405' 8-1/2" 475 sx Class 'G' i24. Perforations open to Production (MD+TVD of Top and Bottom 25. TUBING RECORD _. and interval, size and number) SIZE DEPTH SET (MD) PACKER SET (MD) 4-1/2" Gun Diameter, 5 spf 4-1/2", L-80 17004' 16904' MD TVD MD TVD 20845'-20995' 9282'-9353' 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED Freeze Protect w/143 bbls diesel 27. PRODUCTION TEST Date First Production IMethod of Ope'ration (Flowing, gas lift, etc.) 08/18/96 I Gas Lift Date of Test Hours Tested PRODUCTION FOR OIL-BBL GAS-MCF WATER-BBL CHOKE SIZE I GAS-OIL RATIO TEST PERIOD · I Flow Tubing Casing Pressure 0ALCULATED . OIL-BBL GAS-MCF WATER-BBL O~L GRAVITY-APl (CORR) Press. __.4,-HOUR RATE 28. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. ORIGINAL RECE VrD 'SEP 0 t996 '.Nas._~ 0il & Gas Cons Anchorage Form 10-407 Rev. 07-01-80 Submit In Duplicate 29. Geologic Mark., 30. Formation Tests Measured True Vertical Include interval tested, pressure data, all fluids recovered Marker Name Depth Depth and gravity, GOR, and time of each phase. (RKB) Colville Shale 16666' 7660' HRZ 19945' 8913' Kuparuk 20477' 9116' Kingak 20978' 9337' .. ,,, 31. List of Attachments Summary of Daily Drilling Reports, Surveys, Annular Pumping Report 32. I hereby certify that the fo,~re,.going is true and correct to the best of my knowledge SteveSh,,r~ . Title Senior Drilling Engineer Date Prepared By Name/Number: Kathy Campoamor, 564-5122 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 cementing and the location of the cementing tool. ITEM 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-In, Other-explain. ITEM 28: If no cores taken, indicate 'none'. .Form 10-407 Rev. 07-01-80 SUMMARY OF DALLY OPERATIONS SHARED SERVICES DRILLING - BPX / ARCO Well Name: N K-28 Rig Name: Pool 7 AFE: 730429 Accept Date: 06/04/96 Spud Date: 06/05/96 Release Date: 07/30/96 Jun 5 1996 (1) Rig moved 100 %. RU Divertor. Fill pits with Water based mud. MU BHA in derrick. MU BHA #1. Jun 6 1996 (2) MU BHA #1. Tested Divertor. Drilled to 260 ft. MU BHA #1. Drilled to 1347 ft. Jun 7 1996 (3) Drilled to 1835 ft. Circulated at 1835 ft. POOH to 1000 ft. RIH to 1835 ft. Drilled to 2190 ft. Took Gyro survey at 2190 ft. Circulated at 2190 ft. POOH to 210 ft, Pulled BHA. Serviced Block line. Serviced Top drive. Serviced Drillfloor / Derrick, Ran Drillpipe in stands to 2190 ft. Circulated at 2190 ft. Mixed and pumped slurry - 260 bbl. Jun 8 1996 (4) Mixed and pumped slurry- 260 bbl. Displaced slurry - 24 bbl. Pulled Drillpipe in stands to 1100 ft. Circulated at 1100 ft. Pulled Drillpipe in stands to 0 ft. Serviced Drillfloor/Derrick. RIH to 1472 ft. Drilled cement to 1490 ft. Circulated at 1490 ft. Drilled cement to 1500 ft. Circulated at 1500 ft. POOH to 210 ft. Pulled BHA. Serviced Drillfloor / Derrick. Jun 9 1996 (5) Serviced Drillfloor / Derrick. RIH to 1500 ft. Drilled cement to 1515 ft. Circulated at 1515 ft. POOH to 210 ft. Pulled BHA. Serviced Drillfloor/Derrick. Ran Drillpipe in stands to 1515 ft. Circulated at 1515 ft. Mixed and pumped slurry - 190 bbl. Pulled Drillpipe in stands to 0 ft. Serviced Drillfloor / Derrick. Page .. Jun 10 1996 (6) Serviced Drillfloor/Derrick. RIH to 1291 ft. Circulated at 1291 ft. Drilled cement to 1394 ft. Circulated at 1394 ft. POOH to 210 ft. Pulled BHA. RU Drillfloor / Derrick. Racked back drillpipe. Serviced Drillfloor / Derrick. Ran Drillpipe in stands to 1394 ft. Pulled Drillpipe in stands to 0 ft. Ran Drillpipe in stands to 1140 ft. Pulled Drillpipe in stands to 0 ft. RU Drillstring handling equipment. Ran Drillpipe in stands to 1390 ft. Circulated at 1390 ft. Mixed and pumped slurry - 300 bbl. Pulled Drillpipe in stands to 0 ft. RU Drillstring handling equipment. Laid out 3.5 in drillpipe from derrick. RU Drillstring handling equipment. Serviced Drillfloor / Derrick. Jun 11 1996 (7) Serviced Drillfloor / Derrick. MU BHA #2 . RIH to 921 ft. Circulated at 921 ft. Washed to 1065 ft. Circulated at 1088 ft. POOH to 210 ft. Pulled BHA. Serviced Drilifloor / Derrick. RIH to 1088 ft. Drilled to 1230 ft. RU Survey wireline unit. Jun 12 1996 (8) RU Survey wireline unit. Took Gyro survey at 1230 ft. Drilled to 1290 ft. Took Gyro survey at 1290 ft. Circulated at 1290 ft. POOH to 210. ft. Pulled BHA. MU BHA #3. RIH to 1290 ft. Drilled to 1759 ft. Circulated at 1759 ft. Took Gyro survey at 1759 ft. POOH to 210 ft. Pulled BHA. MU BHA # 4. RIH to 1760 ft. Drilled to 2047 ft. Circulated at 2047 ft. Jun 13 1996 (9) Circulated at 2047 ft. Took Gyro survey at 2047 ft. POOH to 202 ft. Pulled BHA. RIH to 2047 ft. Drilled to 2331 ft. Took Gyro survey at 2331 ft. Drilled to 3745 ft. Jun 14 1996 (10) Drilled to 3820 ft. Circulated at 3820 ft. POOH to 202 ft. Pulled BHA. MU BHA #6. RIH to 3820 ft. Drilled to 5444 ft. Jun 15 1996 (11) ft. Circulated at 5594 ft. POOH to 3800 ft. RIH to 5594 ft. Drilled to Drilled to 5594 7250 ft. Jun 16 1996 (12) .. Drilled to 7510 ft. Circulated at 7510 ft. POOH to 5500 ft. RIH to 7510 ft. Circulated at 7510 ft. POOH to 220 ft. Pulled BHA. RU Casing handling equipment. Held safety meeting. Ran Casing to 800 ft (13.375 in OD). Page 2 Jun 17 1996 (13) Ran Casing to 7593.46 ft (13.375 in OD). Circulated at 7593.5 ft. Mixed and pumped slurry- 1130 bbl. Displaced slurry- 1105 bbl. RD Circulating head. RD Divertor. Jun 18 1996 (14) RD Divertor. Circulated at 80 ft. Mixed and pumped slurry - 40 bbl. RD Cement unit. Installed Slip %s seal assembly. RD Casing handling equipment. RD Divertor. Installed Casing spool. RU All functions. Tested All functions. RD Upper annular. Tested Annular preventor. Installed Wear bushing. Jun 19 1996 (15) Installed Wear bushing. MU BHA #7. Functioned downhole tools at 600 ft. Singled in drill pipe to 7400 ft. Serviced Block line. Circulated at 7404 ft. Tested Casing. Drilled cement to 7520 ft. Circulated at 7520 ft. Performed FIT, obtained leak off 13.760 ppg EMW. Held safety meeting. Circulated at 7520 ft. Jun 20 1996 (16) Circulated at 7520 ft. Serviced Washpipe. .. Circulated at 7520 ft. Drilled to 8890 ft. Jun 21 1996 (17) Drilled to 9010 ft. Circulated at 9010 ft. Took Gyro multi-shot w/line survey. Circulated at 9010 ft. Pumped out of hole to 7000 ft. POOH to 231 ft. Pulled BHA. MU BHA #8. RIH to 500 ft. Jun 22 1996 (18) RIH to 1125 ft. Singled in drill pipe to 3687 ft. RIH to 7500 ft. Circulated at 7500 ft. RIH to 9010 ft. Circulated at 9010 ft. Drilled to 10128 ft. Jun 23 1996 (19) Drilled to 10501 ft. Circulated at 10501 ft. Pumped out of hole to 7500 ft. Circulated at 7500 ft. Serviced Top drive. Serviced Block line. Repaired Mud pump fluid end. Circulated at 7500 ft. RIH to 10501 ft. Jun 24 1996 (20) RIH to 10501 ft. Drilled to 11434 ft. BHA. .. Circulated at 11434 ft. POOH to 1125 ft. Pulled RECEIVED 1996 Page 3 0il & Gas Cons. Commission Anchorage Jun 25 1996 (21) " Pulled BHA. Tested All functions. MU BHA #9. Singled in drill pipe to 3000 ft. RIH to 7500 ft. Circulated at 7500 ft. RIH to 11434 ft. Functioned downhole tools at 11434 ft. Circulated at 11434 ft. Drilled to 11808 ft. Jun 26 1996 (22) Drilled to 12494 ft. Circulated at 12494 ft. POOH to 11378 ft. Took MWD survey at 11450 ft. RIH to 12494 ft. Drilled to 12750 ft. Jun 27 1996 (23) Drilled to 13055 ft. Repaired Top drive. Drilled to 13892 ft. Circulated at 13892 ft. Jun 28 1996 (24) Circulated at 13892 ft. POOH to 12400 ft. RIH to 13892 ft. Functioned downhole tools at 13892 ft. Circulated at 13892 ft. POOH to 10500 ft. Worked toolstring at 10400 ft. Circulated at 10120 ft. Pumped out of hole to 9350 ft. Worked toolstring at 9350 ft. Circulated at 9160 ft. .. Jun 29 1996 (25) Circulated at 9160 ft. Backreamed to 7450 ft. Circulated at 7450 ft. POOH to 250 ft. Pulled BHA. Serviced BOP stack. MU BHA #10. Serviced Top drive. Serviced Block line. MU BHA #10. Singled in drill pipe to 2175 ft. RIH to 7490 ft. Reamed to 9050 ft. Circulated at 9050 ff. Jun 30 1996 (26) Circulated at 9050 ft. Reamed to 9981 ft. Circulated at 9981 ft. Reamed to 11003 ft. Circulated at 11003 ft. POOH to 9880 ft. RIH to 11003 ft. Reamed to 13894 ft. Circulated at 13894 ft. POOH to 4600 ft. Jul I 1996 (27) POOH to 207 ft. Pulled BHA. Tested Well control. MU BHA #11. RIHto 7500 ft. Circulated at 7500 ft. RIH to 13892 ft. Drilled to 14161 ft. Jul 2 1996 (28) Drilled to 14220 ft. Repaired Mud pump fluid end. Drilled to 14350 ft. Serviced Mud pump fluid end. Drilled to 14528 ft. Repaired Mud pump fluid end. Drilled to 14675 ft. Repaired Flowline. Drilled to 14784 ft. Repaired Pistons. Drilled to 14875 ft. Circulated at 14875 ft. POOH to 9500 ft. .. Page 4 Jul 3 1996 (29) POOH to 7500 ft. Serviced Block line. Held safety meeting. RIH to 14875 ft. Circulated at 14875 ft. Drilled to 15120 ft. Repaired Mud pump fluid end. Drilled to 15156 ft. Repaired Mud pumps. Drilled to 15550 ft. Jul 4 1996 (30) Drilled to 15904 ft. Circulated at 15904 ft. POOH to 14490 ft. Reamed to 15904 ft. Circulated at 15904 ft. Drilled to 16138 ft. Jul 5 1996 (31) Drilled to 16365 ft. 16183 ft. Circulated at 16183 ft. Drilled to 16365 ft. Worked toolstring at Circulated at 16365 ft. POOH to 209 ft. Pulled BHA. MU BHA #12. Jul 6 1996 (32) MU BHA #12. Serviced BOP stack. MU BHA #12. Serviced Top drive pipe handler. Serviced Block line. Serviced Brake. RIH to 7500 ft. Serviced Top drive. RIH to 8320 ft. Circulated at 8320 ft. RIH to 12246 ft. Worked toolstring at 12246 ft. POOH to 11706 ft. Circulated at 11708 ft. Reamed to 13670 ft. Jul 7 1996 (33) Reamed to 14032 ft. Circulated at 14032 ft. POOH to 7500 ft. Circulated at 7500 ft. POOH to 210ft. Pulled BHA. MU BHA #13. RIH to 7500 ft. Serviced Block line. Serviced Drillfloor / Derrick. RIH to 9170 ft. Jul 8 1996 (34) RIH to 13039 ft. Reamed to 13231 ft. Circulated at 13231 ft. Reamed to 15521 ft. Jul 9 1996 (35) Reamed to 16365 ft. Circulated at 16365 ft. Drilled to 16379 ft. POOH to 141 ft. Pulled BHA. Installed BOP test plug assembly. Tested Well control. MU BHA #14. Jul 10 1996 (36) MU BHA #14. RIH to 7500 ft. Held safety meeting. Serviced Top drive. Serviced Block line. RIH to 16280 ft. Reamed to 16379 ft. Circulated at 16379 ft. Drilled to 16543 ft. Serviced Mud shakers. Drilled to 16660 ft. Jul 11 1996 (37) Drilled to 17008 ft. Serviced Mud shakers. Drilled to 17125 ft. Circulated at 17125 ft. POOH to 16195 ft. Page 5 RECEIVED S£P 3 0 199~ Jul 12 1996 (38) POOH to 7460 ft. Serviced Block line. RIH to 17125 ft. Circulated at 17125 ft. POOH to 212 ft. Pulled BHA. RU Casing handling equipment. Jul 13 1996 (39) RU Casing handling equipment. RU Top ram. Tested BOP stack. Held safety meeting. Ran Casing to 16525 ft (9.625 in OD). Jul 14 1996 (40) Ran Casing to 16525 ft (9.625 in OD). Circulated at 17105 ft. RU High pressure lines. Pumped spacers - volume 140 bbl. Mixed and pumped slurry - 184 bbl. Displaced slurry - 1246 bbl. RD Cement head. Installed Seal assembly. RU Top ram. Installed BOP test plug assembly. Tested All functions. RD Bottom ram. Tested Bottom ram. Jul 15 1996 (41) Tested Bottom ram. Installed Wear bushing. MU BHA #15. Singled in drill pipe to 1850 ft. Singled in drill pipe to 3075 ft. RIH to 13000 ft. Serviced Block line. Serviced Top drive. RIH to 17020 ft. Circulated at 17020 ft. Tested Casing. Drilled to 17165 ft. Cimulated at 17165 ft. Performed formation integrity test. Functioned downhole tools at 17165 ft. Drilled to 17215 ft. Jul 16 1996 (42) Drilled to 18117 ft, Circulated at 18117 ft. POOH to 17094 ft. RIH to 18117 ft. Drilled to 18250 ft. Jul 17 1996 (43) Drilled to 19145 ft. Circulated at 19145 ft. Drilled to 19330 ft. Jul 18 1996 (44) Drilled to 19706 ft. Circulated at 19706 ft. Drilled to 20270 ft. Jul 19 1996 (45) Drilled to 20540 ft. Circulated at 20540 ft. Drilled to 21012 ft. Flow check. Circulated at 21012 ft. Drilled to 21180 ft. ,. Jul 20 1996 (46) Drilled to 21255 ft. Circulated at 21255 ft. Drilled to 21405 ft, Circulated at 21405 ft. POOH to 21117 ft. Took MWD survey at 21117 ft.-'POOH to 17105 ft. Cimulated at 17105 ft. RIH to 21405 ft. Circulated at 21405 ft. POOH to I V E D SEP 3 0 1996 Page .. Jul 21 1996 (47) POOH to 1850 ft. Pulled BHA." Removed Wear bushing. Installed BOP test plug assembly. RD Bottom ram. Tested Bottom ram. RU Casing handling equipment. Held safety meeting. Ran Casing on landing string to 120 ft. Repaired Casing handling equipment. Ran Casing on landing string to 400 ft. Jul 22 1996 (48) Ran Casing on landing string to 4450 ft. RD Casing handling equipment. RU Drillstring handling equipment. Ran HWDP to 4570 ft (5.5 in OD). Circulated at 4570 ft. Ran Drillpipe in stands to 7500 ft. Circulated at 7500 ft. Ran Drillpipe in stands to 10500 ft. Circulated at 10500 ft. Pulled Drillpipe in stands to 13500 ft. Circulated at 13500 ft. Ran Drillpipe in stands to 14700 ft. Jul 23 1996 (49) Ran Drillpipe in stands to 17089 ft. Circulated at 17089 ft. Pulled Drillpipe in stands to 19200 ft. Circulated at 19200 ft. Ran Drillpipe in stands to 21405 ft. Circulated at 21405 ft. Tested High pressure lines. Pumped spacers-volume 50 bbl. Pumped spacers - volume 100 bbl. Mixed and pumped slurry - 100 bbl. Displaced slurry - 522 bbl. Reverse circulated at 16956 ft. Pulled Drillpipe in stands to 14800 ft. Jul 24 1996 (50) Pulled Drillpipe in stands to 3700 ft. Laid down 3700 ft of Drillpipe. Tested All functions. MU BHA #16. Singled in drill pipe to 4397 ft. RU Drillstring handling equipment. RIH to 12953 ft. Serviced Block line. RIH to 13300 ft. Jul 25 1996 (51) RIH to 20460 ft. Drilled cement to 21320 ft. Circulated at 21320 ft. Tested Casing - Via string. Circulated at 21320 ft. Serviced Fluid system. Reverse circulated at 21320 ff. Jul 26 1996 (52) Reverse circulated at 21320 ft. Serviced Fluid system. POOH to 402 ft. Pulled BHA. RU Logging/braided cable equipment. Ran electric logs. Jul 27 1996 (53) Ran electric logs. RU Logging/braided cable equipment. Ran electric logs. RD Wireline units. Serviced Bottom ram. RU Logging/braided cable equipment. Ran Drillpipe in stands to 21995 ft. RU Logging/braided cable equipment. Ran electric logs. Page 7 Jul 28 1996 (54) Ran electric logs. RD Wireline units. Held safety meeting. Set Retrievable packer at 20704 ft with 0 psi. RU Handling equipment. Circulated at 20995 ft. Perforated from 20845 ft to 20995 ft. RD Handling equipment. LD 9400 ft of Drillpipe. Jul 29 1996 (55) LD 14500 ft of Drillpipe. Serviced Block line. Repaired Handling equipment. LD 5000 ft of Drillpipe. RD sub-surface equipment - Perforating tools. RU Bottom ram. RU Tubing handling equipment. Ran Tubing to 8300 ft (4.5 in OD). Jul 30 1996 (56) Ran Tubing to 17004 ft (4.5 in OD). Installed Casing hanger %s seal assembly running tool. Held safety meeting. Circulated at 17003 ft. Set packer at 16903 ft with 4000 psi. Rig waited :Equipment. RU Slickline unit. Conducted slickline operations on Slickline equipment- Setting run. Jul 31 1996 (57) Conducted slickline operations on Slickline equipment - Setting run. Circulated at 16989 ft. Tested Hydraulic packer. RD Tubing handling equipment. RD BOP stack. Installed Xmas tree. Tested Seal assembly. Freeze protect well - 143 bbls of Diesel. Installed Hanger plug. RD Drillfloor/Derrick. Page 8 A Gyrodat .P. EXPLORATION ELL: NK-28, 9 5/8"& 7"CASING ocation: NIAKUK FIELD, NORTH SLOPE, ob Number: AK0796C357MR ALASKA EASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet 8515.0 67.58 313.87 4732.6 8565.0 68.22 314.08 4751.4 8615.0 68.31 314.18 4769.9 8665.0 68.20 314.29 4788.5 8715.0 67.89 314.35 4807.1 8765.0 68.30 314.17 4825.8 8815.0 67.75 314.00 4844.5 8900.0 68.57 316.33 4876.1 8950.0 69.29 316.49 4894.1 9000.0 69.75 316.69 4911.6 9050.0 69.77 316.94 4928.9 9100.0 69.37 316.83 4946.4 9150.0 69.45 316.09 4963.9 9200.0 69.31 316.05 4981.5 9250.0 69.32 316.15 4999.2 9300.0 69.04 316.29 5017.0 9350.0 68.74 316.27 5035.0 9400.0 68.63 315.88 5053.2 9450.0 68.67 315.30 5071.4 9500.0 68.61 314.97 5089.6 9550.0 68.79 313.96 5107.7 9600.0' 68.87 313.97 5125.8 9650.0 68.64 314.00 5143.9 9700.0 68.60 314.08 5162.1 9750.0 68.54 314.12 5180.4 6154.0 6200.3 6246.7 6293.2 6339.5 6385.9 6432.3 6511.1 6557.7 6604.4 6651.2 6698.0 6744.7 6791.4 6838.1 6884.8 6931.4 6977.9 7024.4 7070.9 7117.5 7164.1 7210.7 7257.3 7303.8 a Dire SUBSEA DEPTH feet 4672.5 4691.3 4709.8 4728.4 4747.0 4765.7 4784.4 4816.0 4834.0 4851.5 4868.8 4886.3 4903.8 4921.4 4939.1 4956.9 4974.9 4993.1 5011.3 5029.5 5047.6 5065.7 5083.8 5102.0 5120.3 c t i o n a 1 S u r v e Y, Page DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. .66 6155.1 314.1 1.34 6201.5 314.1 .26 6247.9 314.1 .30 6294.4 314.1 .64 6340.7 314.1 .89 6387.1 314.1 1.15 6433.5 314.1 2.72 6512.4 314.1 1.47 6559.0 314.1 1.00 6605.8 314.2 .47 6652.6 314.2 .83 6699.4 314.2 1.40 6746.2 314.2 .30 6793.0 314.2 .20 6839.7 314.2 .62 6886.5 314.3 .61 6933.1 314.3 .76 6979.6 314.3 1.08 7026.2 314.3 .62 7072.7 314.3 1.91 7119.3 314.3 .17 7165.9 314.3 .48 7212.5 314.3 .16 7259.1 314.3 .14 7305.6 314.3 HORIZONTAL COORDINATES feet 4284.2 N 4419.4 W 4316.4 N 4452.8 W 4348.7 N 4486.1 W 4381.1 N 4519.4 W 4413.5 N 4552.5 W 4445.9 N 4585.8 W 4478.2 N 4619.1 W 4534.1 N 4674.7 W 4567.9 N 4706.9 W 4601.9 N 4739.0 W 4636.1 N 4771.1 W 4670.3 N 4803.2 W 4704.3 N 4835.4 W 4738.0 N 4867.9 W 4771.7 N 4900.3 W 4805.4 N 4932.7 W 4839.1 N 4964.9 W 4872.7 N 4997.2 W 4906.0 N 5029.8 W 4939.0 N 5062.6 W 497i.6 N 5095.9 W 5004.0 N 5129.4 W 5036.3 N 5163.0 W 5068.7 N 5196.4 W 5101.1 N 5229.9 W A Gyro da t a D i r e c t i ona i Survey .P. EXPLORATION ~LL: NK-28, 9 5/8"& 7"CASING Dcation: NIAKUK FIELD, NORTH SLOPE, ~b Number: AK0796C357MR ALASKA Page ~ASURED I N C L AZIMUTH VERTICAL iIEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 9800.0 68.94 313.74 5198.5 9850.0 69.01 313.61 5216.5 9900.0 68.96 313.53 5234.4 9950.0 68.84 313.51 5252.4 0000.0 68.75 313.79 5270.5 7350.4 7397.1 7443.7 7490.4 7537.0 5138.4 5156.4 5174.3 5192.3 5210.4 1.06 7352.2 314.3 · 29 7398.9 314.3 · 18 7445.6 314.3 · 25 7492.2 314.3 · 56 7538.8 314.3 5133.4 N 5263.4 5165.6 N 5297.2 5197.8 N 5331.0 5229.9 N 5364.8 5262.1 N 5398.6 0050.0 68.59 313.59 5288.7 0100.0 69.24 313.08 5306.7 0t50.0 69.55 312.89 5324.3 0200.0 69.74 313.02 5341.7 0250.0 69.66 313.05 5359.0 7583.6 7630.2 7677.0 7723.9 7770.8 5228.6 5246.6 5264.2 5281.6 5298.9 .49 7585.4 314.3 1.63 7632.1 314.3 .70 7678.8 314.2 .45 7725.7 314.2 .16 7772.6 314.2 5294.3 N 5432.2 W 5326.3 N 5466.2 W 5358.2 N 5500.4 W 5390.1 N 5534.7 W 5422.1 N 5569.0 W 0300.0 69.48 313.02 5376.5 0350.0 69.48 313.17 5394.0 0400.0 69.70 313.16 5411.4 0450.0 70.26 313.04 5428.5 0500.0 70.13 313.27 5445.5 7817.6 7864.5 7911.3 7958.3 8005.4 5316.4 5333.9 5351.3 5368.4 5385.4 .38 7819.4 314.2 .29 7866.3 314.2 .44 7913.1 314.2 1.15 7960.1 314.2 .51 8007.1 314.2 5454.1 N 5603.2 W 5486.1 N 5637.4 W 5518.2 N 5671.6 W 5550.3 N 5705.9 W 5582.4 N 5740.2 W 0550.0 69.84 313.20 5462.6 0600.0 69.61 313.22 5479.9 0650.0 69.50 313.22 5497.4 0700.0 69.25 313.06 5515.0 0750.0 69.33 313.15 5532.7 8052.3 8099.2 8146.1 8192.9 8239.7 5402.5 5419.8 5437.3 5454.9 5472.6 .60 8054.1 314.2 .46 8101.0 314.2 .23 8147.8 314.2 . 56 8194 . 6 314 . 2 .22 8241.4 314.2 5614.6 N 5774.5 W 5646.7 N 5808.6 W 5678.8 N 5842.8 W 5710.8 N 5876.9 W 5742.8 N 5911.1 W 0800.0 69.44 313.20 5550.3 0850.0. 69.42 313.32 5567.9 0900.0 69.24 313.38 5585.5 0950.0 69.08 313.26 5603.3 1000.0 69.02 313.13 5621.2 8286.5 8333.3 8380.0 8426.8 8473.5 5490.2 5507.8 5525.4 5543.2 5561.1 .25 8288.2 314.2 · 24 8335 . 0 314 . 2 . 37 8381 . 8 314 . 2 .39 8428.5 314.2 .27 8475.2 314.1 5774.8 N 5945.2 W 5806.9 N 5979.3 W 5839.0 N 6013.3 W 5871.1 N 6047.3 W 5903.0 N 6081.4 W A Gyr oda t a D i r e c t i ona i Survey .P. EXPLORATION ~LL: NK-28, 9 5/8"& 7"CASING }cation: NIAKUK FIELD, NORTH SLOPE, Db Number: AK0796C357MR ALASKA Page ~ASURED 9EPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 1050.0 1100.0 1150.0 1200.0 1250.0 69.12 313.02 5639.0 69.00 313.11 5656.9 69.09 313.11 5674.8 69.07 313.18 5692.6 69.38 313.16 5710.4 8520 8566 8613 8660 8707 .2 .9 .6 .3 .0 5578.9 5596.8 5614.7 5632.5 5650.3 .28 8521.9 314.1 .30 8568.6 314.1 .19 8615.2 314.1 .13 8661.9 314.1 .62 8708.7 314.1 5934.9 N 6115.5 W 5966.8 N 6149.6 W 5998.7 N 6183.7 W 6030.6 N 6217.7 W 6062.6 N 6251.8 W 130 135 140 145 150 0.0 0.0 0.0 0.0 0.0 69.27 313.19 5728.0 69.23 313.10 5745.7 69.34 313.23 5763.4 69.05 313.29 5781.2 68.99 313.58 5799.1 8753 8800 8847 8894 8940 .8 .6 .3 .1 .7 5667.9 5685.6 5703.3 5721.1 5739.0 .23 8755.5 314.1 .19 8802.2 314.1 .34 8849.0 314.1 .60 8895.7 314.1 · 56 8942.4 314.1 6094.6 N 6286.0 W 6126.6 N 6320.1 W 6158.6 N 6354.2 W 6190.6 N 6388.2 W 6222.7 N 6422.1 W 155 160 165 170 175 0.0 0.0 0.0 0.0 0.0 68.84 313.45 5817.1 68.42 313.34 5835.3 67.82 313.12 5853.9 67.92 313.19 5872.7 67.42 312.98 5891.7 8987 9034 9080 9126 9172 ~4 .0 .4 .7 .9 5757.0 5775.2 5793.8 5812.6 5831.6 .39 8989.0 314.1 .86 9035.6 314.1 1.27 9082.0 314.1 .24 9128.3 314.1 1.08 9174.5 314.1 6254.9 N 6456.0 W 62'86.8 N 6489.8 W 6318.6 N 6523.6 W 6350.3 N 6557.4 W 6381.9 N 6591.2 W 180 185 190 195 2OO 0.0 0.0 0.0 0.0 0.0 67.66 313.02 5910.8 67.92 312.90 5929.7 67.79 312.92 5948.6 67.04 312.73 5967.8 67.21 312.83 5987.2 9219 9265 9311 9357 9404 .1 .4 .7 .9 .0 5850.7 5869.6 5888.5 5907.7 5927.1 · 50 9220 . 7 314 · 1 · 55 9267 . 0 314 · 1 . 25 9313 . 3 314 . 1 1 . 55 9359 . 5 314 . 1 .39 9405.5 314.0 6413.4 N 6625.0 W 6445.0 N 6658.8 W 6476.5 N 6692.8 W 6507.9 N 6726.6 W 6539.2 N 6760.4 W 2050.0 2100.0' 2150.0 2200.0 2250.0 67.29 312.76 6006.6 67.71 312.80 6025.7 67.59 312.76 6044.7 68.08 312.75 6063.6 68.16 312.89 6082.2 9450.1 9496.3 9542.5 9588.8 9635.2 5946.5 5965.6 5984.6 6003.5 6022.1 . 19 9451 . 6 314 . 0 .85 9497.8 314.0 . 24 9544 . 0 314 . 0 . 97 9590 . 3 314 . 0 . 30 9636 . 7 314 . 0 6570.5 N 6794.3 W 6601.8 N 6828.2 W 6633.3 N 6862.1 W 6664.7 N 6896.1 W 6696.2 N 6930.2 W A Gyrodata Di .P. EXPLORATION ELL: NK-28, 9 5/8"& 7"CASING ocation: NIAKUK FIELD, NORTH SLOPE, ob Number: AK0796C357MR ALASKA r e c t i ona 1 Survey Page EASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 2300.0 67.57 312.87 6101.1 2350.0 67.51 312.83 6120.2 2400.0 68.55 312.95 6138.9 2450.0 68.46 312.77 6157.2 2500.0 68.75 312.76 6175.4 9681.5 9727.7 9774.1 9820.6 9867.2 6041.0 6060.1 6078.8 6097.1 6115.3 1.19 9683.0 314.0 .13 9729.2 314.0 2.10 9775.6 314.0 .39 9822.1 314.0 .59 9868.6 314.0 6727.7 N 6964.1 W 6759.2 N 6998.0 W 6790.7 N 7031.9 W 6822.4 N 7066.0 W 6854.0 N 7100.2 W 2550.0 68.91 312.90 6193.5 2600.0 69.26 312.92 6211.3 2650.0 69.30 312.85 6229.0 2700.0 69.73 312.95 6246.5 2750.0 69.84 313.09 6263.8 9913.8 9960.5 10007.3 10054.1 10101.0 6133.4 6151.2 6168.9 6186.4 6203.7 .41 9915.3 314.0 · 70 9962.0 314.0 · 14 10008.7 314.0 .88 10055.5 314.0 .34 10102.5 314.0 6885.7 N 7134.4 W 6917.5 N 7168.6 W 6949.3 N 7202.9 W 6981.2 N 7237.2 W 7013.2 N 7271.5 W 2800.0 69.43 312.99 6281.2 2850.0 69.61 313.05 6298.7 2900.0 69.77 313.25 6316.0 2950.0 69.65 313.26 6333.4 3000.0 69.90 313.21 6350.7 3050.0 69.81 313.25 6367.9 3100.0 69.91 313.26 6385.1 3150.0 69.92 313.27 6402.3 3200.0 69.77 313.30 6419.5 3250.0 69.90 313.36 6436.7 10147.9 10194.7 10241.6 10288.5 10335.4 10382.4 10429.3 10476.3 10523.2 10570.2 6221.1 6238.6 6255.9 6273.3 6290.6 6307.8 6325.0 6342.2 6359.4 6376.6 .84 10149.3 314.0 .37 10196.2 314.0 .50 10243.0 314.0 .24 10289.9 313.9 .49 10336.9 313.9 .18 10383.8 313.9 .20 10430.7 313.9 .02 10477.7 313.9 .31 10524.6 313.9 .29 10571.6 313.9 7045.2 N 7305.8 W 7077.1 N 7340.0 W 7109.2 N 7374.2 W 7141.3 N 7408.4 W 7173.5 N 7442.6 W 7205.6 N 7476.8 W 7237.8 N 7510.9 W 7270.0 N 7545.1 W 7302.2 N 7579.3 W 7334.4 N 7613.5 W 3300.0 70.28 313.40 6453.8 3350.0. 70.33 313.44 6470.6 3400.0 70.09 313.49 6487.5 3450.0 70.20 313.43 6504.5 3500.0 70.57 313.46 6521.3 10617.2 10664.2 10711.3 10758.3 10805.4 6393.7 6410.5 6427.4 6444.4 6461.2 .75 10618.6 313.9 .13 10665.6 313.9 .48 10712.7 313.9 .25 10759.7 313.9 .73 10806.8 313.9 7366.7 N 7647.6 W 7399.0 N 7681.8 W 7431.4 N 7716.0 W 7463.7 N 7750.1 W 7496.1 N 7784.3 W A Gyro da t a D i r e c t i ona i Survey i.P. EXPLORATION IELL: NK-28, 9 5/8"& 7"CASING ,ocation: NIAKUK FIELD, NORTH SLOPE, 'ob Number: AK0796C357MR ALASKA Page 10 [EASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet .355 .360 .365 .370 .375 0.0 0.0 0.0 0.0 0.0 70.81 313.48 6537.8 71.14 313.43 6554.1 70.57 313.57 6570.5 70.04 313.56 6587.4 69.73 313.32 6604.6 10852.6 10899.9 10947.1 10994.2 11041.1 6477.7 6494.0 6510.4 6527.3 6544.5 .50 10854.0 313.9 .67 10901.3 313.9 1.19 10948.5 313.9 1.06 10995.6 313.9 .76 11042.5 313.9 7528.6 N 7818.5 W 7561.1 N 7852.9 W 7593.6 N 7887.1 W 7626.1 N 7921.2 W 7658.3 N 7955.3 W .3800.0 .3850.0 .3900.0 _3950.0 ..4000.0 69.70 313.29 6621.9 70.06 313.23 6639.1 70.26 313.37 6656.1 70.27 312.89 6673.0 69.26 312.85 6690.3 11088.0 11135.0 11182.0 11229.1 11276.0 6561.8 6579.0 6596.0 6612.9 6630.2 .08 11089.4 313.9 .72 11136.4 313.9 .48 11183.4 313.9 · 90 11230.4 313.9 2.02 11277.4 313.9 7690.5 N 7989.4 W 7722.7 N 8023.6 W 7754.9 N 8057.9 W 7787.1 N 8092.2 W 7819.0 N 8126.6 W _405 _410 _415 _420 _425 0.0 0.0 0.0 0.0 0.0 69.38 312.66 6707.9 69.22 312.53 6725.6 69.15 312.51 6743.3 69.15 312.62 6761.1 68.95 312.46 6779.0 11322.8 11369.5 11416.3 11463.0 11509.7 6647.8 6665.5 6683.2 6701.0 6718.9 .43 11324.1 313.9 .40 11370.9 313.9 .15 11417.6 313.9 .22 11464.3 313.9 .50 11511.0 313.9 7850.8 N 8160.9 W 7882.4 N 8195.4 W 7914.0 N 8229.8 W 7945.6 N 8264.2 W 7977.2 N 8298.6 W L430 [_435 L440 1445 L450 0.0 0.0 0.0 0.0 0.0 68.83 312.34 6797.0 68.84 312.30 6815.1 69.28 312.24 6832.9 69.29 312.26 6850.6 68.92 312.19 6868.5 11556.3 11603.0 11649.6 11696.4 11743.1 6736.9 6755.0 6772.8 6790.5 6808.4 .33 11557.6 313.9 .09 11604.3 313.9 .88 11650.9 313.9 .03 11697.7 313.8 .75 11744.4 313.8 8008.7 N 8333.1 W 8040.1 N 8367.6 W 8071.5 N 8402.1 W 8102.9 N 8436.7 W 8134.3 N 8471.3 W L4550.0 L4600.0. L4650.0 L4700.0 L4750.0 68.97 312.15 6886.4 68.95 311.80 6904.4 68.45 311.75 6922.5 68.52 311.66 6940.9 68.53 311.41 6959.2 11789.8 11836.4 11883.0 11929.5 11976.0 6826.3 6844.3 6862.4 6880.8 6899.1 .11 11791.0 313.8 .66 11837.7 313.8 1.01 11884.2 313.8 .22 11930.7 313.8 .46 11977.2 313.8 8165.6 N 8505.9 W 8196.8 N 8540.6 W 8227.9 N 8575.3 W 8258.8 N 8610.1 W 8289.7 N 8644.9 W A Gyrodat a D i r e c t i ona i Survey .P. EXPLORATION 'ELL: NK-28, 9 5/8"& 7"CASING ,ocation: NIAKUK FIELD, NORTH SLOPE, 'ob Number: AK0796C357MR ALASKA Page 11 iEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 4800 .4850 .4900 .4950 500O .0 68.20 311.29 6977.6 .0 67.85 311.31 6996.3 .0 68.41 311.24 7014.9 .0 68.23 311.51 7033.4 .0 68.24 311.58 7052.0 12022 12068 12115 12161 12208 .5 .8 .2 .7 .1 6917.5 6936.2 6954.8 6973.3 6991.9 .71 12023.6 313.8 .70 12069.9 313.8 1.14 12116.3 313.8 · 62 12162.7 313.8 .14 12209.1 313.8 8320.4 N 8679.8 W 8351.0 N 8714.6 W 8381.6 N 8749.5 W 8412.3 N 8784.4 W 8443.1 N 8819.1 W 5O5O 5100 5150 5200 5250 · 0 68.13 311.62 7070.5 .0 68.15 311.51 7089.1 .0 68.07 311.68 7107.8 .0 68.17 311.59 7126.4 · 0 68.15 311.77 7145.0 12254 12300 12347 12393 12440 .5 .9 .3 .6 .0 7010.4 7029.0 7047.7 7066.3 7084.9 .24 12255.5 313.7 .22 12301.9 313.7 .37 12348.3 313.7 .27 12394.6 313.7 .35 12441.0 313.7 8473.9 N 8853.8 W 8504.7 N 8888.6 W 8535.5 N 8923.3 W 8566.3 N 8957.9 W 8597.2 N 8992.6 W .5300 .5350 .54OO .5450 .5500 .0 68.43 312.19 7163.5 .0 68.11 312.18 7182.0 .0 68.08 312.06 7200.7 .0 67.98 312.20 7219.4 .0 68.07 312.67 7238.1 12486 12532 12579 12625 12672 .5 .9 .3 .7 .0 7103.4 7121.9 7140.6 7159.3 7178.0 .95 12487.4 313.7 .63 12533.9 313.7 .24 12580.2 313.7 .32 12626.6 313.7 .89 12672.9 313.7 8628.3 N 9027.1 W 8659.5 N 9061.6 W 8690.6 N '9096.0 W 8721.7 N 9130.3 W 8753.0 N 9164.6 W .5550 _5600 _5650 _5700 .5750 .0 68.02 312.73 7256.8 .0 67.67 312.76 7275.6 .0 67.66 312.90 7294.6 .0 67.82 313.30 7313.6 .0 67.84 313.67 7332.5 12718 12764 12811 12857 12903 .4 .7 .0 .2 .5 7196.7 7215.5 7234.5 7253.5 7272.4 .14 12719.3 313.7 .69 12765.6 313.7 .26 12811.9 313.7 · 81 12858.1 313.7 .67 12904.4 313.7 8784.4 N 9198.6 W 8815.8 N 9232.7 W 8847.3 N 9266.6 W 8878.9 N 9300.4 W 8910.8 N 9334.0 W _5800.0 _5850.0. _5900.0 _5950.0 .6000.0 67.94 313.77 7351.3 12949.9 68.36 314.04 7369.9 12996.3 68.40 314.35 7388.3 13042.7 68.58 314.80 7406.6 13089.2 68.33 314.90 7425.0 13135.7 7291.2 7309.8 7328.2 7346.5 7364.9 .27 12950.8 313.7 .97 12997.2 313.7 .59 13043.6 313.7 .91 13090.2 313.7 .53 13136.7 313.7 8942.8 N 9367.4 W 8975.0 N 9400.9 W 9007.4 N 9434.2 W 9040.0 N 9467.3 W 9072.8 N 9500.3 W A Gyr oda t a D i r e c t i ona i Survey .P. EXPLORATION ELL: NK-28, 9 5/8"& 7"CASING ocation: NIAKUK FIELD, NORTH SLOPE, ob Number: AK0796C357MR ALASKA Page 12 EASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 60 6]_ 61 62 62 5O 00 5O 00 5O .0 .0 .0 .0 .0 68.40 314.88 7443.4 68.37 314.84 7461.8 68.13 314.78 7480.4 68.43 314;78 7498.9 68.24 314.88 7517.3 13182 13228 13275 13321 13367 .2 .6 .1 .5 .9 7383.3 7401.7 7420.3 7438.8 7457.2 .13 13183.1 313.7 · 10 13229.6 313.7 .50 13276.0 313.7 .60 13322.5 3'13.7 .42 13368.9 313.7 9105.6 N 9533.2 W 9138.4 N 9566.2 W 9171.1 N 9599.1 W 9203.9 N 9632.1 W 9236.6 N 9665.1 W 63 63 64 64 65 O0 5O O0 5O O0 .0 .0 .0 .0 .0 68.37 314.76 7535.8 68.50 314.73 7554.2 68.39 314.71 7572.6 68.71 314.78 7590.8 68.95 314.72 7608.9 13414 13460 13507 13553 13600 .4 .8 .3 .8 .4 7475.7 7494.1 7512.5 7530.7 7548.8 .32 13415.4 313.7 .28 13461.9 313.7 .22 13508.4 313.7 .65 13554.9 313.7 .50 13601.5 313.7 9269.4 N 9698.0 W 9302.1 N 9731.0 W 9334.8 N 9764.1 W 9367.6 N 9797.1 W 9400.4 N 9830.2 W 65 66 66 67 67 5O 00 5O 00 5O .0 .0 .0 .0 .0 69.15 314.84 7626.8 68.96 314.73 7644.6 68.84 314.71 7662.6 69.04 314.75 7680.6 69.20 314.77 7698.4 13647 13693 13740 13787 13833 .1 .8 .4 .1 .8 7566.7 7584.5 7602.5 7620.5 7638.3 .45 13648.2 313 .7 .43 13694.9 313.7 . 24 13741 . 5 313 . 7 .40 13788.2 313.7 . 33 13834 . 9 313 . 7 9433.3 N 9863.4 W 9466.2 N 9896.5 W 9499.0 N 9929.7 W 9531.9 N 9962.8 W 9564.8 N 9996.0 W 68 .68 .69 .70 O0 5O O0 5O O0 .0 .0 .0 .0 .0 69.42 314.84 7716.1 69.64 314.75 7733.6 69.66 314.86 7751.0 69.87 314.79 7768.3 70.40 314.92 7785.3 13880 13927 13974 14021 14068 .5 .3 .2 .1 .1 7656.0 7673.5 7690.9 7708.2 7725.2 .46 13881.7 313.7 .47 13928.5 313.7 · 20 13975.4 313.7 · 45 14022 · 3 313 . 8 1 . 08 14069 . 3 313 . 8 9597.7 N 9630.7 N 9663.8 N 9696.8 N 9730.0 N 10029.2 W 10062.4 W 10095.7 W 10129.0 W 10162.3 W .70 _71 .71 _72 _72 50.0 00.0. 50.0 00.0 50.0 70.67 314.90 7801.9 70.92 314.92 7818.4 70.65 314.99 7834.8 70.50 315.21 7851.5 69.26 315.18 7868.7 14115.2 14162.4 14209.6 14256.7 14303.6 7741.8 7758.3 7774.7 7791.4 7808.6 · 53 14116 . 4 313 . 8 · 51 14163 . 6 313 . 8 · 55 14210.8 313.8 · 51 14258 . 0 313 . 8 2 . 49 14304 . 9 313 . 8 9763.3 N 9796.6 N 9830.0 N 9863.4 N 9896.7 N 10195.7 W 10229.1 W 10262.5 W 10295.8 W 10328.9 W A Gyroda t a D i r e c t i ona I Survey .P. EXPLORATION ELL- NK-28, 9 5/8"& 7"CASING ocation: NIAKUK FIELD, NORTH SLOPE, ob Number: AK0796C357MR ALASKA iEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet '7300.0 68.78 315.17 7886.6 7350.0 68.47 315.30 7904.8 '7400.0 68.04 315.35 7923.3 7450.0 67.69 315.44 7942.1 7500.0 67.25 315.46 7961.3 7550.0 66.87 315.46 7980.8 7600.0 66.47 315.48 8000.6 7650.0 66.17 315.57 8020.7 7700.0 65.86 314.86 8041.0 7750.0 65.78 314.35 8061.5 7800 7850 7900 7950 .8000 .8050 .8100 .8150 _8200 _8250 .8300 .8350 _8400 .8450 .8500 .0 65.43 314.29 8082.1 .0 65.17 314.29 8103.0 .0 65.75 313.61 8123.8 .0 65.42 312.86 8144.5 .0 65.56 312.56 8165.2 .0 65.04 312.47 8186.1 .0 64.65 312.40 8207.3 .0 64.49 312.40 8228.8 .0 64.53 312.40 8250.3 .0 64.93 312.30 8271.7 .0 65.39 312.47 8292.7 .0' 65.77 312.42 8313.4 .0 66.51 312.45 8333.6 .0 66.07 312.33 8353.7 .0 66.02 312.23 8374.0 14350.2 14396.8 14443 .2 14489.5 14535.6 14581.6 14627.5 14673.2 14718.9 14764.5 14810.0 14855.4 14900.9 14946.4 14991.9 15037.3 15082.6 15127.7 15172.9 15218.1 15263.4 15309.0 15354.7 15400.5 15446.2 Page 13 SUBSEA DEPTH feet 7826.5 7844.7 7863.2 7882.0 7901.2 7920.7 7940.5 7960.6 7980.9 8001.4 8022.0 8042.9 8063.7 8084.4 8105.1 8126.0 8147.2 8168.7 8190.2 8211.6 8232.6 8253.3 8273.5 8293.6 8313.9 DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. · 96 14351.6 313 . 8 · 66 14398 . 1 313 . 8 .87 14444.6 313.8 . 72 14490 . 8 313 . 8 . 87 14537 . 0 313 . 8 .77 14583.0 313.8 .81 14628.9 313.8 .61 14674.7 313.8 1.45 14720.4 313.8 .94 14766.0 313.8 .71 14811.5 313.8 .53 14856.9 313.8 1.69 14902.4 313.8 1.52 14947.9 313.8 .62 14993.4 313.8 1.04 15038.8 313.8 .80 15084.1 313.8 .33 15129.2 313.8 .09 15174.4 313.8 .82 15219.6 313.8 .96 15264.9 313.8 .78 15310.4 313.8 1.48 15356.1 313.8 .91 15401.9 313.8 .22 15447.6 313.8 HORIZONTAL COORDINATES feet 9929.8 N 9962.9 N 9995.9 N 10028.9 N 10061.8 N 10094.6 N 10127.3 N 10160.0 N 10192.4 N 10224.5 N 10256.3 N 10288.0 N 10319.6 N 10350.7 N 10381.6 N 10412.3 N 10442.8 N 10473.3 N 10503.7 N 10534.2 N 10564.8 N 10595.5 N 10626.3 N 10657.2 N 10687.9 N 10361.8 W 10394.6 W 10427.2 W 10459.8 W 10492.2 W 10524.5 W 10556.7 W 10588.7 W 10620.9 W 10653.4 W 10686.0 W 10718.5 W 10751.2 W 10784.4 W 10817.8 W 10851.3 W 10884.7 W 10918.1 W 10951.4 W 10984.8 W 11018.3 W 11051.9 W 11085.7 W 11119.5 W 11153.3 W A Gy r o da t a D i r e ctional Survey .P. EXPLORATION 'ELL: NK-28, 9 5/8"& 7"CASING ,ocation: NIAKUK FIELD, NORTH SLOPE, 'ob Number: AK0796C357MR ALASKA Page 14 [EASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL 'SECTION feet SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet .85 .86 .86 .87 .87 50.0 00.0 50.0 00.0 50.0 66.81 312.32 8394.0 66.94 312.14 8413.6 66.67 312.12 8433.3 67.61 311.97 8452.7 67.58 311.80 8471.8 15492.0 15538.0 15583.9 15630.0 15676.2 8333.9 8353.5 8373.2 8392.6 8411.7 1.60 15493.4 313.8 .42 15539.4 313.8 .54 15585.3 313.8 1.89 15631.3 313.8 .33 15677.5 313.8 10718.8 N 10749.7 N 10780.5 N 10811.4 N 10842.2 N 11187.2 W 11221.2 W 11255.3 W 11289.5 W 11323.9 W .88 _88 .89 _89 _90 00.0 50.0 00.0 50.0 00.0 67.48 311.67 8490.9 68.16 312.27 8509.8 68.20 312.23 8528.4 68.64 312.09 8546.8 68.43 311.98 8565.1 15722 15768 15815 15861 15908 .4 .7 .1 .6 .1 8430.8 8449.7 8468.3 8486.7 8505.0 .31 15723.7 313.7 1.76 15770.0 313.7 .11 15816.4 313.7 .91 15862.9 313.7 .47 15909.4 313.7 10873.0 N 10903.9 N 10935.1 N 10966.4 N 10997.5 N 11358.4 W 11392.9 W 11427.2 W 11461.7 W 11496.2 W .90 _91 _91 _92 ..92 50.0 00.0 50.0 00.0 50.0 68.14 311.67 8583.6 67.77 311.55 8602.3 67.33 311.50 8621.4 66.95 312.09 8640.8 66.32 311.72 8660.7 15954 16000 16047 16093 16139 .5 .9 .1 .1 .0 8523.5 8542.2 8561.3 8580.7 8600.6 .83 15955.8 313.7 .77 16002.1 313.7 .89 16048.3 313.7 1.32 16094.4 313.7 1.43 16140.2 313.7 11028.5 N 11059.3 N 11089.9 N 11120.6 N 11151.3 N 11530.8 W 11565.5 W 11600.1 W 11634.4 W 11668.6 W k93 L93 L94 1.94 L95 00.0 50.0 00.0 50.0 00.0 67.05 312.04 8680.5 66.90 311.99 8700.0 67.68 311.98 8719.3 67.69 312.36 8738.3 68.24 312.93 8757.1 16184 16230 16277 16323 16369 .9 .9 .1 .3 .7 8620.4 8639.9 8659.2 8678.2 8697.0 1.57 16186.1 313.7 .32 16232.1 313.7 1.57 16278.2 313.7 .70 16324.5 313.7 1.51 16370.8 313.7 11181.9 N 11212.7 N 11243.6 N 11274.6 N 11306.0 N 11702.8 W 11737.0 W 11771.3 W 11805.6 W 11839.6 W L95 L96 L96 197 !97 50.0 00.0. 50.0 00.0 50.0 68.21 312.84 8775.6 68.03 312.75 8794.2 67.85 312.88 8813.0 68.73 312.99 8831.5 68.43 313.34 8849.8 16416.1 16462.5 16508.8 16555.3 16601.8 8715.5 8734.1 8752.9 8771.4 8789.7 .17 16417.2 313.7 .39 16463.6 313.7 .43 16510.0 313.7 1.77 16556.4 313.7 .88 16603.0 313.7 11337.6 N 11369.1 N 11400.6 N 11432.3 N 11464.1 N 11873.7 W 11907.7 W 11941.7 W 11975.7 W 12009.7 W A Gyro da t a D i r e c t ~.P. EXPLORATION ~ELL- NK-28, 9 5/8"& 7"CASING Location: NIAKUK FIELD, NORTH SLOPE, lob Number: AK0796C357MR ALASKA i o n a 1 Survey Page 15 ~EASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 19800.0 68.29 313.85 8868.2 ]_9850.0 68.58 313.99 8886.6 19900.0 68.71 314.07 8904.8 19950.0 68.66 313.84 8923.0 20000.0 68.33 313.71 8941.3 16648.3 16694.8 16741.4 16787.9 16834.4 8808.1 8826.5 8844.7 8862.9 8881.2 .99 16649.4 313.7 .62 16695.9 313.7 .30 16742.5 313.7 .44 16789.1 313.7 .70 16835.6 313.7 11496.2N 11528.4 N 11560.8 N 11593.1 N 11625.3 N 12043.3 W 12076.8 W 12110.3 W 12143.8 W 12177.4 W 20050.0 67.94 313.71 8959.9 20100.0 67.82 313.80 8978.7 20150.0 68.17 314.00 8997.5 20200.0 67.96 314.07 9016.2 20250.0 67.62 314.16 9035.1 16880.8 16927.2 16973.5 17019.9 17066.2 8899.8 8918.6 8937.4 8956.1 8975.0 .77 16882.0 313.7 .29 16928.3 313.7 .79 16974.7 313.7 .46 17021.1 313.7 .69 17067.3 313.7 11657.4 N 11689.4 N 11721.5 N 11753.8 N 11786.0 N 12211.0 W 12244.4 W 12277.8 W 12311.2 W 12344.4 W 20300.0 67.25 314.28 9054.2 20350.0 66.92 314.43 9073.7 20400.0 66'.77 314.50 9093.4 20450.0 66.35 314.45 9113.3 20500.0 66.15 314.57 9133.4 17112.3 17158.4 17204.3 17250.2 17295.9 8994.1 9013.6 9033.3 9053.2 9073.3 .78 17113.5 313.7 .71 17159.6 313.7 .33 17205.5 313.7 .84 17251.4 313.7 .46 17297.2 313.7 11818.2 N 11850.4 N 11882.6 N 11914.8 N 11946.8 N 12377.5 W 12410.4 W 12443.2 W 12476.0 W 12508.6 W 20550.0 65.77 314.45 9153.8 20600.0 65.42 314.47 9174.4 20650.0 64.83 314.33 9195.5 20700.0 64.02 314.07 9217.0 20750.0 63.65 313.76 9239.1 17341.6 17387.1 17432.4 17477.5 17522.4 9093.7 9114.3 9135.4 9156.9 9179.0 .78 17342.8 313.7 .71 17388.4 313.7 1.20 17433.7 313.7 1.69 17478.8 313.7 .93 17523.7 313.7 11978.8 N 12010.7 N 12042.5 N 12073.9 N 12105.0 N 12541.2 W 12573.7 W 12606.1 W 12638.4 W 12670.7 W 20800.0 63.14 313.75 9261.5 20850.0 62.50 313.47 9284.3 20900.0 61.96 313.33 9307.6 20950.0 61.08 313.03 9331.5 21000.0 60.52 313.07 9355.8 17567.1 17611.6 17655.8 17699.8 17743.4 9201.4 1.03 17568.4 313.7 9224.2 1.36 17612.9 313.7 9247.5 1.10 17657.1 313.7 9271.4 1.84 17701.1 313.7 9295.7 1.13 17744.7 313.7 12136.0 N 12166.6 N 12197.0 N 12227.1 N 12256.9 N 12703.0 W 12735.2 W 12767.4 W 12799.4 W 12831.3 W A Gyroda t a D i r e c t i ona i Survey ,.P. EXPLORATION IELL: NK-28, 9 5/8"& 7"CASING ~ocation: NIAKUK FIELD, NORTH SLOPE, 'ob Number: AK0796C357MR ALASKA Page 16 [EASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SUBSEA DOGLEG CLOSURE SECTION DEPTH SEVERITY DIST. AZIMUTH feet feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 11050.0 60.09 312.88 9380.6 :1100.0 59.87 312.76 9405.6 11150.0 59.45 312.65 9430.9 !1200.0 58.82 312.27 9456.5 !1250.0 58.10 311.99 9482.7 17786.9 9320.5 .92 17788.1 313.7 17830.1 9345.5 .49 17831.4 313.7 17873.3 9370'.8 .86 17874.6 313.7 17916.2 9396.4 1.41 17917.5 313.7 17958.8 9422.6 1.53 179,60.1 313.7 12286.5 N 12315.9 N 12345.2 N 12374.2 N 12402.8 N 12863.1 W 12894.9 W 12926.6 W 12958.2 W 12989.8 W ~inal Station Closure: Distance: 17960.07 ft Az: 313.68 deg. A Gyroda t a D i re c t i ona i Survey for B.P. EXPLORATION WELL: NK-28, 9 5/8"& 7"CASING Location: NIAKUK FIELD, NORTH SLOPE, ALASKA Fob Number: AK0796C357SS ~un Date: 26-Jul-96 08:00:00 ~urveyor: TOM STODDARD 2alculation Method: MINIMUM CURVATURE ~urvey Latitude: 70.333000 deg. N ~ub-sea Correction from Vertical Reference: 60.1 ft. ~zimuth Correction: 3yro- Bearings are Relative to True North Proposed Well Directi'on: 313.000 dog ~ertical Section Calculated from Well Head Location 21osure Calculated from Well Head Location {orizontal Coordinates Calculated from Local Horizontal Reference A Gyroda t a D i r e c t i ona i Survey ,.P. EXPLORATION tELL: NK-28, 9 5/8"& 7"CASING ,ocation- NIAKUK FIELD, NORTH SLOPE, 'ob Number: AK0796C357SS ALASKA SUBSEA I N C L AZIMUTH VERTICAL VERTICAL DOGLEG CLOSURE DEPTH DEPTH SECTION SEVERITY DIST. AZIMUTH feet deg. deg. feet feet deg./ feet deg. 100 ft. -60.1 0.00 0.00 0.0 0.0 0.00 0.0 0.0 '0-21250ft.) A GYRO MULTISHOT SURVEY IN 9 5/8"& 7"CASING ~LL DEPTHS REFERENCED TO POOL~7 R.K.B. ELEV. OF 60.1' ?IE-IN DATA PROVIDED BY GYRODATA SURVEY NO. (G350) HORIZONTAL COORDINATES feet 0.0 N 0.0 E Page 100.0 .19 192.03 160.1 .3 200.0 .14 153.00 260.1 .4 300.0 .44 304.09 360.1 .7 400.0 1.01 335.74 460.1 1.9 500.0 1.50 327.72 560.1 4.0 600.0 3.04 321.79 660.1 7.9 700.0 5.35 318.67 760.1 14.7 800.0 6.59 320.84 860.1 25.0 900.0 9.28 319.17 960.1 38.6 10 11 12 13 14 15 16 17 18 19 00 . 0 10 . 85 315 . 88 1060 · 1 56 . 3 00.0 11.75 315.04 1160.1 76.4 00 . 0 12 . 28 313 . 31 1260 . 1 97 . 8 00 . 0 15 . 25 313 · 56 1360 . 1 122 . 1 00 . 0 19 . 01 315 . 58 1460 . 1 152 . 5 00.0 23.74 317.59 1560.1 191.9 00..0 25.94 317.03 1660.1 238.1 00.0 26.83 316.18 1760.1 288.0 00.0 25.90 316.73 1860.1 337.0 00.0 28.10 314.02 1960.1 387.6 .24 .28 .51 .61 1. 2. 1. 3. . o 52 56 03 65 28 74 68 53 45 52 02 99 75 52 98 .4 .4 1.2 3.0 5.7 11.1 15.4 25.8 39.5 57.0 87.1 108.6 134.4 166.2 205.3 248.2 293.2 359.2 405.8 316.8 334.2 338.2 335.7 333.4 328.8 324.2 322.1 321.6 320.5 319.2 318.1 317.2 316.6 316.7 316.8 316.8 316.7 316.6 .2 N .4 N .7 N 1.9 N 3.7 N 6.9 N 12.2 N 20.0 N 30.6 N 43.8 N 58.2 N 73.1 N 89.8 N 111.1 N 139.9 N 174.0 N 210.4 N 245.9 N 282.0 N .2 W .2 W .3 W .8 W 1.9 W 4.3 W 8.8 W 15.6 W 24.2 W 36.1 W 50.2 W 65.6 W 83.2 W 104.9 W 131.9 W 163.3 W 197.6 W 231.5 W 267.0 W A Gyro d a t a D i r e c t i o na i Survey ~.P. EXPLORATION YELL: NK-28, 9 5/8"& 7"CASING location: NIAKUK FIELD, NORTH SLOPE, Iob Number: AK0796C357SS ALASKA Page SUBSEA DEPTH feet 2000.0 2100.0 2200.0 2300.0 2400.0 I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet 31.35 311.03 2060.1 34.15 310.08 2160.1 40.25 311.06 2260.1 45.11 313.03 2360.1 50.61 314.80 2460.1 VERTICAL SECTION feet 444.9 508.6 584.9 677.0 787.9 DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. 2.95 456.6 316.1 3.15 510.5 315.3 4.64 602.5 314.7 3.88 706.5 314.4 3.72 820.3 314.3 HORIZONTAL COORDINATES feet 320.8 N 309.2 W 362.0 N 357.8 W 411.6 N 416.0 W 473.4 N 484.2 W 550.8 N 563.7 W 25 26 27 28 29 00 00 00 00 00 .0 .0 .0 .0 .0 54.79 315.06 2560.1 59.28 313.54 2660.1 62.64 313.96 2760.1 64.03 314.00 2860.1 64.66 314.07 2960.1 919.5 1074.4 1255.9 1455.1 1667.0 2.48 941.0 314.5 2.44 1110.6 314.5 1.27 1331.2 314.3 .92 1510.7 314.3 .52 1691.8 314.2 644.3 N 656.5 W 752.8 N 767.0 W 877.8 N 898.6 W 1016.1 N 1042.1 W 1163.2 N 1194.7 W 30 31 32 33 34 O0 O0 O0 O0 O0 .0 .0 .0 .0 .0 66.14 313.97 3060.1 67.10 313.76 3160.1 67.77 315.11 3260.1 67.17 316.17 3360.1 68.37 316.28 3460.1 1883.6 2116.1 2357.3 2598.8 2843.5 1.02 1965.0 314.2 .58 2149.0 314.1 · 66 2426.4 314.1 .58 2610.9 314.3 .57 2888.7 314.5 1313.2 N 1350.8 W 1473.3 N 1519.6 W 1642.0 N 1692.0 W 1814.7 N 1861.1 W 1992.2 N 2030.2 W 35 36 37 38 39 O0 O0 O0 O0 O0 .0 .0 .0 .0 .0 68.76 314.77 3560.1 69.44 314.26 3660.1 70.15 314.33 3760.1 70.00 314.28 3860.1 68.61 313.60 3960.1 3102.6 3367.5 3640.9 3910.9 4175.3 1.10 3168 . 8 314 . 6 . 29 3449 . 8 314 . 5 .29 3731.6 314.5 .46 3919.1 314.5 . 72 4199 . 6 314 . 5 2177.6 N 2211.6 W 2362.9 N 2401.1 W 2553.6 N 2597.1 W 2742.4 N 2790.1 W 2925.7 N 2980.7 W 40 41 42 43 44 00.0 00.0 00.0 00.0 O0.0 68.87 314.44 4060.1 70.22 314.35 4160.1 69.29 312.96 4260.1 68.87 312.65 4360.1 68.17 312.70 4460.1 4427.8 4696.1 4969.3 5230.6 5487.4 .72 4478.6 314.4 .72 4760.2 314.5 · 84 5041.4 314.4 · 33 5274.7 314.3 1.08 5507.4 314.2 3101.4 N 3162.2 W 3290.0 N 3353.1 W 3478.7 N 3550.7 W 3656.3 N 3742.3 W 3829.6 N 3931.9 W A Gyro da t a D i r e c t i ona i Survey ~.P. EXPLORATION JELL- NK-28, 9 5/8"& 7"CASING Jocation: NIAKUK FIELD, NORTH SLOPE, Fob Number: AK0796C357SS ALASKA Page SUBSEA DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 45 46 47 48 49 O0 O0 O0 O0 O0 .0 67.91 312.87 4560.1 · 0 67.88 313.16 4660.1 .0 68.26 314.13 4760.1 .0 68.15 315.15 4860.1 .0 69.44 316.25 4960.1 5733.1 5976.6 6222.1 6471.1 6734.5 .26 5738.8 314.2 · 68 6016.3 314.1 .83 6247.9 314.1 · 93 6512.4 314.1 .27 6746.2 314.2 3996.0 N 4112.7 W 4161.5 N 4291.3 W 4331.6 N 4468.4 W 4505.7 N 4646.5 W 4696.9 N 4828.4 W 000 !00 200 3OO 4OO .0 68.64 315.66 5060.1 .0 68.60 314.07 5160.1 .0 68.80 313.63 5260.1 .0 69.65 313.05 5360.1 .0 69.88 313.21 5460.1 6995.6 7252.1 7510.2 7773.7 8045.5 . 89 7026 · 2 314 . 3 . 20 7259 · 1 314 . 3 · 38 7538.8 314 · 3 .17 7819.4 314.2 · 59 8054.1 314.2 4885.4 N 5009.6 W 5065.1 N 5192.7 W 5243.6 N 5379.2 W 5424.1 N 5571.1 W 5609.9 N 5769.5 W 5OO 6OO 700 8OO 9OO .0 69.43 313.27 5560.1 .0 69.01 313.11 5660.1 .0 69.32 313.21 5760.1 .0 67.85 313.14 5860.1 .0 67.34 312.80 5960.1 8312.6 8575.2 8838.6 90'95.6 9339.4 .25 8335.0 314.2 .28 8615.2 314.1 .31 8849.0 314.1 .93 9128.3 314.1 .02 9359.5 314.1 5792.7 N 5964.3 W 5972.5 N 6155.7 W 6152.6 N 6347.8 W 6329.0 N 6534.7 W 6495.3 N 6713.0 W 6O00 6100 6200 6300 64O0 .0 67.99 312.75 6060.1 9580.3 .0 68.50 312.77 6160.1 9828.1 · 0 69.82 313.06 6260.1 10091.0 · 0 69.85 313.23 6360.1 10361.2 .0 70.30 313.41 6460.1 10634.9 · 83 9590.3 314.0 · 42 9868.6 314.0 .46 10102.5 314.0 .32 10383.8 313.9 · 52 10665.6 313.9 6658.9 N 6889.9 W 6827.4 N 7071.5 W 7006.3 N 7264.2 W 7191.1 N 7461.3 W 7378.9 N 7660.5 W 65 66 67 68 69 00.0 70.93 313.48 6560.1 10917.1 00.0 70.26 313.25 6660.1 11193.2 00.0 69.15 312.61 6760.1 11460.3 00.0 69.10 312.22 6860.1 11721.2 00.0 68.52 311.40 6960.1 11978.4 · 86 10948.5 313.9 · 58 11230.4 313.9 .21 11464.3 313.9 .41 11744.4 313.8 .47 12023.6 313.8 7572.9 N 7865.3 W 7762.6 N 8066.1 W 7943.8 N 8262.2 W 8119.6 N 8455.1 W 8291.2 N 8646.7 W A Gyr oda t a D i r e c t i ona i Survey ~.P. EXPLORATION JELL- NK-28, 9 5/8"& 7"CASING Jocation: NIAKUK FIELD, NORTH SLOPE, Fob Number: AK0796C357SS ALASKA Page SUBSEA DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 70 71 '72 73 74 00.0 68.20 311.60 7060.1 12228 00.0 68.38 312.11 7160.1 12477 00.0 67.96 312.74 7260.1 12726 00.0 68.14 313.90 7360.1 12971 00.0 68.38 314.84 7460.1 13224 .4 .9 .5 .9 .2 18 12255.5 313.7 84 12487.4 313.7 24 12765.6 313.7 61 12997.2 313.7 10 13229.6 313.7 8456.6 N 8834.4 W 8622.5 N 9020.8 W 8789.9 N 9204.6 W 8958.1 N 9383.3 W 9135.3 N 9563.1 W 75 76 77 78 79 00.0 68.47 314.72 7560.1 13475 00.0 68.86 314.71 7660.1 13733 00.0 69.77 314.82 7760.1 13998 00.0 69.88 315.20 7860.1 14280 00.0 67.28 315.46 7960.1 14532 .8 .8 .9 .3 .7 26 13508.4 313.7 27 13741.5 313 . 7 33 14022 . 3 313 . 7 50 14304 . 9 313 . 8 86 14537.0 313 . 8 9312.6 N 9494.4 N 9681.2 N 9880.1 N 10059.7 N 9741.7 W 9925.0 W 10113.2 W 10312.4 W 10490.1 W 8000.0' 65.79 314.38 8060.1 14761 8100.0 65.53 312.63 8160.1 14980 8200.0 64.71 312.35 8260.1 15193 8300.0 66.05 312.30 8360.1 15414 8400.0 67.60 311.91 8460.1 15647 .4 .7 .6 .9 .8 98 14766.0 313.8 84 14993.4 313.8 42 15219.6 313.8 69 15447.6 313.8 29 15677.5 313.8 10222.3 N 10374.0 N 10517.7 N 10666.9 N 10823.3 N 10651.2 W 10809.6 W 10966.7 W 11130.2 W 11302.8 W 8500.0 68.48 312.01 8560.1 15895 8600.0 66.34 311.73 8660.1 16137 8700.0 68.23 312.91 8760.1 16377 SS00.0 68.35 313.63 8860.1 16627 8900.0 67.94 313.71 8960.1 16881 .5 .7 .3 .9 .3 58 15909.4 313.7 43 16140.2 313.7 29 16417.2 313.7 94 16649.4 313.7 77 16928.3 313.7 10989.1 N 11150.4 N 11311.2 N 11482.1 N 11657.7 N 11486.9 W 11667.6 W 11845.2 W 12028.5 W 12211.3 W 9O 91 92 93 94 00.0 67.15 314.32 9060.1 00..0 65.66 314.46 9160.1 00.0 63.17 313.75 9260.1 00.0 60.45 313.03 9360.1 00.0 58.72 312.23 9460.1 17126.2 17355.5 17564.3 17750.9 17922.0 1. 1. 1. 76 17159.6 313.7 76 17388.4 313.7 03 17568.4 313.7 09 17788.1 313.7 42 17960.1 313.7 11827.9 N 11988.6 N 12134.1 N 12262.0 N 12378.1 N 12387.4 W 12551.1 W 12701.0 W 12836.8 W 12962.5 W A Gyro da t a D i r e c t i ona i Survey ~.P. EXPLORATION gELL: NK-28, 9 5/8"& 7"CASING Location: NIAKUK FIELD, NORTH SLOPE, ALASKA Iob Number: AK0796C357SS Page SUBSEA I N C L AZIMUTH VERTICAL VERTICAL DOGLEG CLOSURE DEPTH DEPTH SECTION SEVERITY DIST. AZIMUTH feet deg. deg. feet feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 9422.6 58.10 311.99 Pinal Station Closure: 9482.7 17958.8 1.53 Distance: 17960.07 ft 17960.1 313.7 Az: 313.68 deg. 12402.8 N 12989.8 W gyro/data 4. QUALITY CONTROL SR357.DOC ,gyro/data QUALITY CONTROL REPORT JOB NUMBER' AK0796C357MR TOOL NUMBER' 749 MAXIMUM GYRO TEMPERATURE · 85.83C MAXIMUM AMBIENT TEMPERATURE · MAXIMUM INCLINATION· 84.6 C 70.19 AVERAGE AZIMUTH ' 313.68 WIRELINE REZERO VALUE · REZERO ERROR/K' CALIBRATION USED FOR FIELD SURVEY' 1534 CALIBRATION USED FOR FINAL SURVEY' 1534 PRE JOB MASS BALANCE OFFSET CHECK · -.24 POST JOB MASS BALANCE OFFSET CHECK~ · CONDITION OF SHOCK WATCHES .39 USED 0.0 UPON ARRIVAL AT 'RIG · OK UPON COMPLETION OF SURVEY' OK UPON RETURN TO ATLAS OK BOTTOM LINE COMPARISIONS M.D. INC AZIMUTH TVD NORTHING EASTING FIELD SURVEY 19000 68.43 311.98 8557.4 11025.4 -11464,3 FINAL SURVEY 19000 68.43 311.98 8565.1 10997.5 -11496.2 SR357.DOC gyro/data FUNCTION TEST JOB NUMBER: AK0796C357MR 5 Survey stations were collected at the measured depth shown below. The tables show the repeatability of the gyro tool in both inclination and azimuth at one measured depth. INCLINATION M.D. ft 1 2 3 4 5 8600 66.94 66.94 66.94 66.93 66.93 AZIMUTH M.D. ft 1 2 3 4 5 8600 312.14 312.14 312.16 312.16 312.14 SR357.DOC gyro/data 5. EQUIPMENT AND CHRONOLOGICAL REPORT SR357.DOC gyro/data EQUIPMENT REPORT JOB NUMBER' AK0796C357MR DOWNHOLE ELECTRONICS SURFACE ELECTRONICS PRIMARY TOOL No. 749 GYRO SECTION A0119 DATA SECTION C0002 POWER SECTION C0001 COMPUTER POWER SUPPLY PRINTER INTERFACE A0153 A0074 A0079 A0071 BACKUP TOOL No, 750 GYRO SECTION A0126 DATA SECTION C0025 POWER SECTION C0026 COMPUTER POWER SUPPLY PRINTER INTERFACE A0122 A0074 A0029 A0035 WIRELINE COMPANY' ATLAS WIRELINE CABLE SIZE · 15/32,' RUNNING GEAR 2.5" RUN W/SBT TOTAL LENGTH OF TOOL · 26.5 FEET MAXIMUM O.D.' 2.5 INCHES TOTAL WEIGHT OF TOOL ' 200 POUNDS SR357.DOC gyro/data CHRONOLOGICAL. REPORT JOB NUMBER: AK0796C357MR 07/25/96 19:30 20:30 21:15 21:45 O7/26/96 07:50 08:40 12:00 16::30 07/27/96 04:00 04:30 TRANS TO LOCATION ARRIVE AT LOCATION MU TOOL TOOL WORKING, STANDBY PU TOOL W/SBT RIH. 0' STRT.INRUN 21250' STRT OUTRUN G.C. LD TOOL PROCESS SURVEY RETURN TO LOCATION SR357.DOC gyro/data B.P. EXPLORATION WELL NO' NK-28 NIAKUK NORTH SLOPE, ALASKA Gyro Multishot Survey Of 7" casing Survey date' 20 JUNE 1996 Job number · AK0696G350 ~ECE~VE.D RECEIVED OCT '1 5 19~1; ~]~ 011 & Gas Cons 6m~.nmsiol~ SR350.DOC gyro/data Gyrodata Incorporated P.O. Box 79389 Houston, Texas 77279 713/461-3146 Fax: 713/461-0920 July 5, 1996 Attn: Marion Sloan MB 7-2 B.P. Exploraton (Alaska) Inc. Petrotechnical Data Center 900 E. Benson Blvd. Anchorage, AK 99519-6612 Re: Niakuk Field, Well No. NK-28, North Slope, AK Enclosed please find one (1) original and eight (8) copies and six (6) diskettes of the completed survey of Well No: NK-28 We would like to take this opportunity to thank you for using Gyrodata and we look forward to serving you in the furore. Sincerely Operations Manager RS/fec Serv ng the Worldwide Energy Industry with Precision Survey Instrumentation gyro/data CONTENTS JOB NUMBER :AK0696G350 1. DISCUSSION, SURVEY CERTIFICATION SHEET 2. SURVEY DETAILS 3. OUTRUN SURVEY LISTING 4. QUALITY CONTROL $. EQUIPMENT AND CHRONOLOGICAL REPORT SR350.DOC gyro/data. 1. DISCUSSION, SURVEY CERTIFICATION SHEET SR350.DOC gyro/data DISCUSSION JOB NUMBER' AK0696G350 Tool 746 was run in well# NK-28 on ATLAS 5/16" Wireline inside casing. The survey was run without problems. SR350. DOC gyro/data SURVEY CERTIFICATION SHEET JOB NUMBER' AK0696G350 The data for this survey and the calculations for this survey were obtained and performed by me according to standards and procedures as set forth by Gyrodata Limited, true and correct to the best of my knowledge. TOM STODDARD OPERATIONS ENGINEER The data and calculations for this survey have been checked by me and conform to the standards and procedures as set forth by Gyrodata Limited. This report represents a directional survey of this well based on the original data obtained at the wellsite. Ch~cked by :- ROB SHOUP OPERATIONS MANAGER SR350.DOC gyro/data 2. SURVEY DETAILS SR350.DOC gyro/data SURVEY DETAILS JOB NUMBER': AK0696G350 CLIENT: B.P. EXPLORATION RIG: POOL 7 LOCATION: NORTH SLOPE FIELD, ALASKA WELL: NK-28 LATITUDE: 70.505000 N LONGITUDE: 149.0W SURVEY DATE: 20 JUNE 1996 SURVEY TYPE : MULTISHOT IN 7" CASING DEPTH REFERENCE: MAX. SURVEY DEPTH: ROTARY TABLE ELEVATION 60.1 FT. 8815 SURVEY TIED ONTO: NA SURVEY INTERVAL: 100' FROM 0- 715' 50' FROM 715-3715' 100' FROM 3715-7515' 50' FROM 7515-8815' UTM CO-ORDINATES: TARGET DIRECTION: 313.73 GRID CORRECTION: N/A CALCULATION METHOD: MINIMUM CURVATURE SURVEYOR: TOM STODDARD SR350.DOC gyro/data 3. OUTRUN SURVEY LISTING SR350.DOC A Gyroda t a D i re c t i ona i Survey for B.P. EXPLORATION WELL: NK-28, 5.5"DP Location: NIAKUK FIELD, NORTH SLOPE, ALASKA Iob Number: AK0696G350 ~un Date: 20-Jun-96 09:20:00 ~urveyor: TOM STODDARD 2alculation Method: MINIMUM CURVATURE Survey Latitude- 70.333000 deg. N Sub-sea Correction from Vertical Reference: 60.1 ft. Azimuth Correction: ~yro: Bearings are Relative to True North Proposed Well Direction: 313.730 deg Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference B.P. EXPLORATION WELL: NK-28, 5.5"DP Location: NIAKUK FIELD, Job Number: AK0696G350 A Gyrodata NORTH SLOPE, ALASKA MEASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet Dire VERTICAL SUBSEA SECTION DEPTH feet feet 0.0 0.00 0.00 0.0 0.0 -60.1 0-8815 FT. GYRO MULTISHOT SURVEY RUN IN 7" CASING. ALL MEASURED DEPTHS REFERENCED TO POOL 7 R.K.B. c t i ona 1 Survey DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. 0.00 0.0 0.0 Page 1 HORIZONTAL COORDINATES feet 0.00 N 0.00 E 115.0 .20 306.36 115.0 .2 54.9 215.0 .17 52.85 215.0 .4 154.9 315.0 .10 274.89 315.0 .4 254.9 415.0 .86 339.62 415.0 1.1 354.9 515.0 1.18 331.01 515.0 2.8 454.9 615 . 0 1 . 88 323 . 71 614 . 9 5 . 4 554 . 8 715.0 4 · 45 319.46 714 . 8 10.9 654.7 765.0 5.44 318.60 764 . 6 15.2 704 . 5 815.0 5.85 318 · 17 814 · 4 20 · 1 754.3 865 · 0 6 · 65 321.07 864 · 1 25.5 804 · 0 915.0 7.76 321.72 913.7 31.7 853.6 965.0 9.38 319.00 963.1 39.1 903.0 1015.0 10.14 318.38 1012.4 47.6 952.3 1065.0 10.88 315.80 1061.5 56.7 1001.4 1115.0 11.47 316.00 1110.6 66.3 1050.5 1165.0 11.75 315.05 1159.6 76.4 1099.5 1215.0 12.18 314.32 1208.5 86.8 1148.4 1265.0 12.22 313.32 1257.4 97.3 1197.3 1315.0 13.32 313.11 1306.1 108.4 1246.0 1365.0 15.11 313.50 1354.6 120.7 1294.5 .18 .2 306.4 · 30 .4 329.5 · 26 .4 339.9 · 82 1.2 336.1 .36 3.0 335.2 .72 5.7 331.1 2.58 11.1 326.0 1.98 15.4 324.0 · 83 20.3 322.7 1.72 25.8 322.0 2.22 32.0 321.9 3.34 39.5 321.6 1.52 47.9 321.1 1.75 57.0 320.4 1.19 66.7 319.8 .68 76.7 319.2 · 92 87.1 318.7 · 43 97.6 318.2 2.21 108.6 317.7 3.58 120.9 317.2 .12 N .17 W .32 N .19 W .42 N .15 W 1.13 N .50 W 2.74 N 1.26 W 4.96 N 2.73 9.23 N 6.23 12.48 N 9.06 16.16 N 12.32 20.31 N 15.84 25.22 N 19.75 30.94 N 24.52 37.31 N 30.12 43.98 N 36.33 50.94 N 43.07 58.12 N 50.12 W 65.41 N 57.49 W 72.72 N 65.11 W 80.29 N 73.17 W 88.71 N 82.10 W 3.P. EXPLORATION ~ELL: NK-28, 5.5"DP Location: NIAKUK FIELD, lob Number: AK0696G350 A Gy r o d a t a NORTH SLOPE, ALASKA Dire c t i ona 1 Survey Page ~EASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 1415.0 1465.0 1515.0 1565.0 1615.0 16.34 314.05 1402.7 18.52 315.28 1450.4 20.90 316.75 1497.5 23.26 317.55 1543.8 24.61 317.65 1589.5 134.2 149.2 166.0 184.8 205.0 1342.6 2.47 134.4 316.9 1390.3 4.43 149.4 316.7 1437 . 4 4 . 86 166 . 2 316 . 6 1483.7 4.75 185.0 316.7 1529.4 2.70 205.3 316.7 98.09 N 91.88 W 108.62 N 102.53 W 120.76 N 114.23 W 134.55 N 127.00 W 149.53 N 140.68 W 1665.0 1715.0 1765.0 1815.0 1865.0 25.24 317.10 1634.8 26.49 316.98 1679.8 26.91 316.80 1724.5 26.81 316.02 1769.1 25.74 316.27 1813.9 226.0 247.8 270.3 292.8 314.9 1574.7 1.35 226.4 316.8 1619.7 2.49 248.2 316.8 1664.4 .86 270.7 316.8 1709.0 .73 293.2 316.8 1753.8 2.14 315.4 316.8 165.03 N 154.95 W 180.99 N 169.82 W 197.39 N 185.17 W 213.75 N 200.75 W 229.71 N 216.08 W 1915.0 1965.0 2015.0 2065.0 2115.0 25.88 316.75 1859.0 26.48 315.97 1903.8 27.66 314.25 1948.3 29.32 313.38 1992.3 30.70 311.95 2035.6 336.7 358.7 381.5 405.3 430.3 1798.9 .50 337.1 316.7 1843.7 1.38 359.2 316.7 1888.2 2.82 381.9 316.6 1932.2 3.42 405.8 316.5 1975.5 3.12 430.7 316.2 245.51 N 231.06 W 261.47 N 246.29 W 277.59 N 262.35 W 294.09 N 279.56 W 311.04 N 297.95 W 2165.0 2215.0 2265.0 2315.0 2365.0 31.84 310.34 2078.3 32.62 309.89 2120.6 34.24 310.09 2162.4 36.85 310.25 2203.0 39.26 310.64 2242.4 456.2 482.8 510.3 539.3 570.1 2018.2 2.82 456.6 315.9 2060.5 1.64 483.1 315.6 2102.3 3.24 510.5 315.3 2142.9 5.23 539.5 315.0 2182.3 4.85 570.2 314.8 328.11 N 317.50 W 345.29 N 337.89 W 362.99 N 358.99 W 381.74 N 381.20 W 401.73 N 404.65 W 2415.0 2465.0 2515.0 2565.0 2615.0 41.38 311.54 2280.5 42.89 312.34 2317.6 44.68 312.84 2353.7 47.04 313.87 2388.5 48.42 314.71 2422.1 602.4 636.0 670.5 706.4 743 .4 2220.4 4.40 602.5 314.6 2257.5 3.20 636.0 314.5 2293.6 3.64 670.6 314.4 2328.4 4.95 706.5 314.3 2362.0 3.04 743.4 314.3 423.00 N 429.03 W 445.43 N 453.98 W 468.84 N 479.44 W 493.47 N 505.53 W 519.31 N 532.01 W B.P. EXPLORATION ~ELL: NK-28, 5.5"DP Location: NIAKUK FIELD, lob Number: AK0696G350 A Gy r o d a t a NORTH SLOPE, ALASKA ~EASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION. feet~ 266 271 276 281 286 291 296 301 306 311 316 321 331 341 351 361 371 381 391 401 411 421 431 441 451 5.0 50.37 314.72 2454.7 5.0 51.75 315.19 2486.1 5.0 53.07 315.44 2516.6 5.0 54.23 315.42 2546.2 5.0 55.40 314.66 2575.0 5.0 56.94 314.81 2602.9 5.0 58.08 314.42 2629.7 5.0 59.08 313.62 2655.8 5.0 60.24 313.15 2681.1 5.0 60.71 313.55 2705.7 5.0 62.02 313.48 2729.7 5.0 62.51 314.00 2752.9 5.0 63.35 313.74 2798.4 5.0 63.41 314.23 2843.2 5.0 65.01 313.63 2886.8 5.0 65.05 314.16 2929.0 5.0 64.51 314.03 2971.6 5.0 65.12 313.63 3014.1 5.0 66.06 314.06 3055.5 5.0 66.80 313.23 3095.4 5.0 66.81 313.22 3134.8 5.0 67.25 314.05 3173.8 5.0 67.58 314.26 3212.3 5.0 67.65 314.98 3250.3 5.0 68.09 315.49 3288.0 781 820 859 9OO 941 982 1024 1067 1110 1154 1197 1242 1331 1420 1510 1601 1691 1782 1873 1964 2056 2148 2241 2333 2426 .4 .2 .8 .1 .0 .5 .7 .3 .5 .0 .9 .1 .2 .6 .6 .2 .7 .2 .3 .9 .8 .9 .2 .7 .3 Directional Survey SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. 2394.6 3.90 781.4 314.3 2426.0 2.84 820.3 314.4 2456.5 2.68 859.9 314.4 2486.1 2.32 900.2 314.4 2514.9 2.65 941.0 314.5 2542.8 3.10 982.6 '314.5 2569.6 2.36 1024.7 314.5 2595.7 2.44 1067.4 314.5 2621.0 2.45 1110.6 314.4 2645.6 1.17 1154.1 314.4 2669.6 2.63 1197.9 314.4 2692.8 1.34 1242.2 314.3 2738.3 .87 1331.2 314.3 2783.1 .45 1420.6 314.3 2826.7 1.68 1510.7 314.3 2868.9 .48 1601.3 314.2 2911.5 .54 1691.8 314.2 2954.0 .70 1782.3 314.2 2995.4 1.02 1873.3 314.2 3035.3 1.07 1965.0 314.2 3074 . 7 . 02 2056 . 9 314 . 1 3113 . 7 . 89 2149 . 0 314 . 1 3152.2 .37 2241.3 314.1 3190 . 2 . 67 2333 . 7 314 . 1 3227.9 .65 2426.4 314.2 Page 3 HORIZONTAL .COORDINATES feet 546.02 N 558.98 573.50 N 586.50 601.67 N 614.36 630.36 N 642.62 659.27 N 671.50 688.51 N 701.00 W 718.13 N 731.02 W 747.78 N 761.70 W 777.42 N 793.06 W 807.29 N 824.70 W 837.50 N 868.10 N 929.80 N 991.89 N 1054.35 N 1117.20 N 1180.15 N 1242.82 N 1305.91 N 1369.16 N 1432.11 N 1495.65 N 1559.97 N 1624.91 N 1690.68 N 856.52 W 888.50 W 952.69 W 1017.02 W 1081.87 W 1147.19 W 1212.17 W 1277.45 W 1343.11 W 1409.44 W 1476.42 W 1543.06 W 1609.30 W 1675.12 W 1740.35 W B.P. EXPLORATION ~ELL: NK-28, 5.5"DP Location: NIAKUK FIELD, Job Number: AK0696G350 A Gy r o d a t a NORTH SLOPE, ALASKA MEASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet 4615.0 4715.0 4815.0 4915.0 5015.0 5115.0 5215.0 5315.0 5415.0 5515.0 5615.0 5715.0 5815.0 5915.0 6015.0 6115.0 6215.0 6315.0 6415.0 6515.0 6615.0 6715..0 6815.0 6915.0 7015.0 67.12 315.68 3326.1 67.18 316.24 3364.9 67.75 316.71 3403.3 68.14 316.14 3440.8 68.57 316.40 3477.7 69.55 315.56 3513.4 68.53 314.93 3549.2 69.30 314.41 3585.2 69.57 314.18 3620.3 69.36 314.27 3655.4 69.97 314.16 3690.1 69.97 314.18 3724.4 70.19 314.32 3758.5 69.34 314.34 3793.1 69.60 314.45 3828.1 70.03 314.26 3862.6 69.23 314.00 3897.4 69.25 313.67 3932.9 68.40 313.58 3969.0 67.86 313.98 4006.2 68 . 82 314 . 58 4043 . 2 68 . 93 314 . 29 4079 . 2 69.71 315.10 4114.5 70 . 24 314 . 62 4148 . 8 70.19 313.82 4182.6 2518.7 2610.8 2703.0 2795.6 2888.5 2981.8 3075.1 3168.4 3262.1 3355.7 3449.5 3543.4 3637.4 3731.2 3824.9 3918.7 4012.5 4106.0 4199.2 4292.0 4385.0 4478.2 4571.8 4665.7 4759.8 Directional Survey SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. 3266.0 .99 2518.8 314.2 3304.8 .52 2610.9 314.3 3343.2 .71 2703.2 314.4 3380.7 .65 2795.8 314.4 3417.6 .49 2888.7 314.5 3453.3 1.25 2982.1 314.5 3489.1 1.18 3075.5 314.6 3525.1 .92 3168.8 314.6 3560.2 .34 3262.4 314.6 3595.3 .23 3356.0 314.5 3630.0 .62 3449.8 314.5 3664.3 .01 3543.7 314.5 3698.4 .26 3637.8 314.5 3733.0 .84 3731.6 314.5 3768.0 .27 3825.2 314.5 3802.5 .47 3919.1 314.5 3837.3 .84 4012.8 314.5 3872.8 .31 4106.3 314.5 3908.9 .86 4199.6 314.5 3946.1 .65 4292.4 314.4 3983.1 1.11 4385.3 314.4 4019.1 .29 4478.6 314.4 4054.4 1.09 4572.1 314.4 4088.7 .69 4666.1 314.5 4122.5 .76 4760.2 314.5 Page 4 HORIZONTAL COORDINATES. feet 1756.72 N 1805.05 W 1822.97 N 1869.11 W 1889.94 N 1932.72 ~ 1957.08 N 1996.60 W 2024.25 N 2060.86 W 2091.41 N 2125.76 W 2157.72 N 2191.50 W 2223.32 N 2257.86 W 2288.70 N 2324.88 W 2354.01 N 2391.99 W 2419.40 N 2459.19 W 2484.87 N 2526.58 W 2550.47 N 2593.92 W 2616.04 N 2661.03 W 2681.56 N 2727.94 W 2747.18 N 2795.05 W 2812.46 N 2862.34 W 2877.22 N 2929.79 W 2941.55 N 2997.29 W 3005.76 N 3064.30 W 3070.65 N 3130.83 W 3135.95 N 3197.44 W 3201.74 N 3263.95 W 3268.02 N 3330.55 W 3333.64 N 3397.98 W 3.P. EXPLORATION ~ELL: NK-28, 5.5"DP location: NIAKUK FIELD, Iob Number: AK0696G350 A G y r o d a t a NORTH SLOPE, ALASKA ~EASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet 7115.0 7215.0. 7315.0 7415.0 7515.0 7565.0 7615.0 7665.0 7715.0 7765.0 7815.0 7865.0 7915.0 7965.0 8015.0 8065.0 8115.0 8165.0 8215.0 8260.0 8315.0 8365.0 8415.0 8465.0 8515.0 69.96 313.80 4216.7 69.40 312.96 4251.4 68.95 312.96 4287.0 69.13 312.73 4322.7 68.86 312.69 4358.6 68.96 312.13 4376.6 69.18 312.50 4394.4 68.74 312.58 4412.4 68.36 312.22 4430.7 68.54 312.57 4449.1 67.92 312.78 4467.6 68.01 312.58 4486.4 67.72 312.36 4505.2 67.67 312.57 4524.2 67.83 312.80 4543.1 67.92 312.88 4561.9 67.62 312.75 4580.9 67.67 312.67 4599.9 67.48 312.56 4618.9 67.60 312.98 4636.1 67.92 313 .09 4656.9 67.66 313 .55 4675.8 67.81 313 . 93 4694 . 8 67 . 87 314 . 03 4713 . 6 67 . 58 313 . 87 4732 . 6 4853 .8 4947.6 5041.1 5134.4 5227.8 5274.4 5321.1 5367.7 5414.3 5460.8 5507.2 5553.5 5599.8 5646.1 5692.4 5738.7 5784.9 5831.2 5877.4 5919.0 5969.9 6016.2 6062.4 6108.7 6155.0 Directional Survey SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. 4156 . 6 . 23 4854 · 2 314 · 4 4191 · 3 · 97 4948 . 0 314 . 4 4226 · 9 .45 5041.4 314.4 4262.6 .28 5134 · 7 314 · 4 4298 · 5 .27 5228.1 314 · 3 4316.5 1.07 5274.7 314.3 4334.3 .81 5321.4 314.3 4352.3 .89 5368.0 314.3 4370.6 1.02 5414.5 314.3 4389.0 .75 5461.0 314.3 4407.5 1.31 5507.4 314.2 4426.3 .41 5553.7 314.2 4445 · 1 . 71 5600 . 0 314 . 2 4464.1 .40 5646.3 314.2 4483.0 .52 5692.5 314.2 4501.8 .24 5738.8 314.2 4520.8 .64 5785.1 314.2 4539.8 .19 5831.3 314.2 4558.8 .43 5877.5 314.1 4576.0 .90 5919.1 314.1 4596 · 8 · 62 5970 . 0 314 . 1 4615 . 7 1 . 00 6016 . 3 314 . 1 4634 · 7 · 78 6062 · 6 314 · 1 4653 . 5 . 21 6108 . 9 314 . 1 4672 · 5 · 66 6155 · 1 314 . 1 Page 5 H O R I Z O N T A L C O 0 R~D I N A T E S feet 3398.72 N 3465.83 W 3463.13 N 3533.98 W 3526.82 N 3602.39 ~ 3590.32 N 3670.86 W 3653.64 N 3739.45 W 3685.11 N 3716.55 N 3748.10 N 3779.48 N 3810.83 N 3842.31 N 3873.73 N 3905.00 N 3936.24 N 3967.61 N 3999.10 N 4030.56 N 4061.92 N 4093.22 N 4121.45 N 4156.20 N 4187.95 N 4219.95 N 4252.10 N 4284.22 N 3773.90 W 3808.43 W 3842.81 W 3877.18 W 3911.52 W 3945.66 W 3979.73 W 4013.89 W 4048.02 W 4082.03 W 4116.00 W 4149.95 W 4183.93 W 4217.94 W 4248.47 W 4285.68 W 4319.36 W 4352.79 W 4386.11 W 4419.42 W ~.P. EXPLORATION YELL: NK-28, 5.5"DP Location: NIAKUK FIELD, Iob Number: AK0696G350 A Gy r o d a t a NORTH SLOPE, ALASKA Dire c t i o n a 1 Survey Page ~EASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SUBSEA DOGLEG CLOSURE SECTION DEPTH SEVERITY DIST. AZIMUTH feet feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 8565.0 68.22 314.08 4751.4 6201.3 4691.3 1.34 6201.5 314.1 8615.0 68.31 314.18 4769.9 6247.8 4709.8 .26 6247.9 314.1 8665.0 68.20 314.29 4788.5 6294.2 4728.4 .30 6294.4 314.1 8715.0 67.89 314.35 4807.1 6340.6 4747.0 .64 6340.7 314.1 8765.0 68.30 314.17 4825.8 6387.0 4765.7 .89 6387.1 314.1 4316.39 N 4348.73 N 4381.12 N 4413.52 N 4445.90 N 4452.76 W 4486.09 W 4519.37 W 4552.55 W 4585.77 W 8815.0 67.75 314.00 4844.5 6433.3 4784.4 1.15 6433.5 314.1 4478.16 N 4619.07 W Final Station Closure: Distance: 6433.49 ft Az: 314.11 deg. A Gyr oda t a D i r e c t i ona i Survey for B.P. EXPLORATION WELL: NK-28, 5.5"DP Location: NIAKUK FIELD, NORTH SLOPE, ALASKA Job Number: AK0696G350 Run Date: 20-Jun-96 09:20:00 Surveyor: TOM STODDARD Calculation Method: MINIMUM CURVATURE Survey Latitude: 70.333000 deg. N Sub-sea Correction from Vertical Reference: 60.1 ft. Azimuth Correction: Gyro: Bearings are Relative to True North Proposed Well Direction: 313.730 deg Vertical Section Calculated from Well Head Location Closure Calculated from Well Head Location Horizontal Coordinates Calculated from Local Horizontal Reference 3.P. EXPLORATION NELL: NK-28, 5.5"DP Location: NIAKUK FIELD, lob Number: AK0696G350 A Gy r o d a t a NORTH SLOPE, ALASKA Directional Survey Page SUBSEA DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. AZIMUTH feet' deg./ feet deg. 100 ft. HORIZONTAL C 0.O R D I N A T E S feet -60.1 0.00 0.00 0.0 0.0 0.00 0.0 0.0 0-8815 FT. GYRO MULTISHOT SURVEY RUN IN 7" CASING. ALL MEASURED DEPTHS REFERENCED TO POOL 7 R.K.B. 0.00 N 0.00 54.9 .20 306.36 115.0 .2 .18 154.9 .17 52.85 215.0 .4 .30 254.9 .10 274.89 315.0 .4 .26 354.9 .86 339.62 415.0 1.1 .82 454.9 1.18 331.01 515.0 2.8 .36 .2 .4 .4 1.2 3.0 306.4 329.5 339.9 336.1 335.2 .12 N .32 N .42 N 1.13 N 2.74 N .17 W .19 W .15 W .50 W 1.26 W 554.8 1.88 323.71 614.9 5.4 .72 654.7 4.45 319.46 714.8 10.9 2.58 704.5 5.44 318.60 764.6 15.2 1.98 754.3 5.85 318.17 814.4 20.1 .83 804.0 6.65 321.07 864.1 25.5 1.72 5.7 11.1 15.4 20.3 25.8 331.1 326.0 324.0 322.7 322.0 4.96 N 9.23 N 12.48 N 16.16 N 20.31 N 2.73 W 6.23 W 9.06 W 12.32 W 15.84 W 8 9 9 10 10 53.6 7.76 321.72 913.7 31.7 2.22 03.0 9.38 319.00 963.1 39.1 3.34 52.3 10.14 318.38 1012.4 47.6 1.52 01.4 10.88 315.80 1061.5 56.7 1.75 50.5 11.47 316.00 1110.6 66.3 1.19 32.0 39.5 47.9 57.0 66.7 321.9 321.6 321.1 320.4 319.8 25.22 N 30.94 N 37.31 N 43.98 N 50.94 N 19.75 W 24.52 W 30.12 W 36.33 W 43.07 W 10 11 11 12 12 99.5 11.75 315.05 1159.6 76.4 .68 48..4 12.18 314.32 1208.5 86.8 .92 97.3 12.22 313.32 1257.4 97.3 .43 46.0 13.32 313.11 1306.1 108.4 2.21 94.5 15.11 313.50 1354.6 120.7 3.58 76.7 87.1 97.6 108.6 120.9 319.2 318.7 318.2 317.7 317.2 58.12 N 65.41 N 72.72 N 80.29 N 88.71 N 50.12 W 57.49 W 65.11 W 73 . 17 W 82.10 W 3. P. EXPLOg_ATION BELL: NK-28, 5.5"DP ~,ocation: NIAKUK FIELD, lob Number: AK0696G350 A Gyrodata NORTH SLOPE, ALASKA SUBSEA DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet 1342 1390 1437 1483 1529 1574 1619 1664 1709 1753 1798 1843 1888 1932 1975 2018 2060 2102 2142 2182 2220 2257 2293 2328 2362 .6 1'6.34 314.05 1402.7 .3 18.52 315.28 1450.4 .4 20.90 316.75 1497.5 .7 23.26 317.55 1543.8 .4 24.61 317.65 1589.5 .7 25.24 317.10 1634.8 .7 26.49 316.98 1679.8 .4 26.91 316.80 1724.5 .0 26.81 316.02 1769.1 .8 25.74 316.27 1813.9 .9 25.88 316.75 1859.0 .7 26.48 315.97 1903.8 .2 27.66 314.25 1948.3 .2 29.32 313.38 1992.3 .5 30.70 311.95 2035.6 .2 31.84 310.34 2078~3 .5 32.62 309.89 2120.6 .3 34.24 310.09 2162.4 .9 36.85 310.25 2203.0 .3 39.26 310.64 2242.4 .4 41.38 311.54 2280.5 ..5 42.89 312.34 2317.6 .6 44.68 312.84 2353.7 .4 47.04 313.87 2388.5 .0 48.42 314.71 2422.1 134.2 149.2 166.0 184.8 205.0 226.0 247.8 270.3 292.8 314.9 336.7 358.7 381.5 405.3 430.3 456.2 482.8 510.3 539.3 570.1 602.4 636.0 670.5 706.4 743.4 Directional DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg. / feet deg. 100 ft. 2.47 134.4 316.9 4.43 149.4 316.7 4.86 166.2 316.6 4.75 185.0 316.7 2.70 205.3 316.7 1.35 226.4 316.8 2.49 248.2 316.8 .86 270.7 316.8 .73 293.2 316.8 2.14 315.4 316.8 · 50 337.1 316.7 1.38 359.2' 316.7 2.82 381.9 316.6 3.42 405.8 316.5 3.12 430.7 316.2 2.82 456.6 315.9 1.64 483.1 315.6 3.24 510.5 315.3 5.23 539.5 315.0 4.85 570.2 314.8 4.40 602.5 314.6 3.20 636.0 314.5 3.64 670.6 314.4 4.95 706.5 314.3 3.04 743.4 314.3 Survey HORIZONTAL COORDINATES feet 98.09 N 91.88 W 108.62 N 102.53 W 120.76 N 114.23 W 134.55 N 127.00 W 149.53 N 140.68 W 165.03 N 154.95 W 180.99 N 169.82 W 197.39 N 185.17 W 213.75 N 200.75 W 229.71 N 216.08 W 245.51 N 231.06 W 261.47 N 246.29 W 277.59 N 262.35 W 294.09 N 279.56 W 311.04 N 297.95 W 328.11 N 317.50 W 345.29 N 337.89 W 362.99 N 358.99 W 381.74 N 381.20 W 401.73 N 404.65 W 423.00 N 429.03 W 445.43 N 453.98 W 468.84 N 479.44 W 493.47 N 505.53 W 519.31 N 532.01 W Page B.P. EXPLORATION WELL: NK-28, 5.5"DP Location: NIAKUK FIELD, Job Number: AK0696G350 A Gy r o d a t a NORTH SLOPE, ALASKA Direct i o n a 1 Survey Page SUBSEA DEPTH feet 2394.6 2426.0 2456.5 2486.1 2514.9 I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet 50.37 314.72 2454.7 51.75 315.19 2486.1 53.07 315.44 2516.6 54.23 315.42 2546.2 55.40 314.66 2575.0 VERTICAL DOGLEG CLOSURE SECTION SEVERITY DIST. feet deg./ 100 ft. 781.4 820.2 859.8 900.1 941.0 3.90 2.84 2.68 2.32 2.65 HORIZONTAL AZIMUTH C O 0 R D I N A T E S feet deg. feet 781.4 314.3 546.02 N 820.3 314.4 573.50 N 859.9 314.4 601.67 N 900.2 314.4 630.36 N 941.0 314.5 659.27 N 558.98 W 586.50 W 614.36 W 642.62 W 671.50 W 2542.8 2569.6 2595.7 2621.0 2645.6 56.94 314.81 2602.9 982. 58.08 314.42 2629.7 1024. 59.08 313.62 2655.8 1067. 60.24 313.15 2681.1 1110. 60.71 313.55 2705.7 1154. 3.10 982.6 314.5 688.51 N 2.36 1024.7 314.5 718.13 N 2.44 1067.4 314.5 747.78 N 2.45 1110.6 314.4 777.42 N 1.17 1154.1 314.4 807.29 N 701.00 W 731.02 W 761.70 W 793.06 W 824.70 W 2669.6 2692.8 2738.3 2783.1 2826.7 62.02 313.48 2729.7 1197. 62.51 314.00 2752.9 1242. 63.35 313.74 2798.4 1331. 63.41 314.23 2843.2 1420. 65.01 313.63 2886.8 1510. 2 .1 1 .63 1197.9 314.4 837.50 N .34 1242.2 314.3 868.10 N .87 1331.2 314.3 929.80 N .45 1420.6 314.3 991.89 N .68 1510.7 314.3 1054.35 N 856.52 W 888.50 W 952~69 W 1017.02 W 1081.87 W 2868.9 2911.5 2954 . 0 2995.4 3035.3 65.05 314.16 2929.0 1601. 64.51 314.03 2971.6 1691. 65.12 313.63 3014.1 1782. 66.06 314.06 3055.5 1873. 66.80 313.23 3095.4 1964. .48 .54 .70 .02 .07 1601.3 314.2 1117.20 N 1691.8 314.2 1180.15 N 1782.3 314.2 1242.82 N 1873.3 314.2 1305.91 N 1965.0 314.2 1369.16 N 1147.19 W 1212.17 W 1277.45 W 1343.11 W 1409.44 W 3074.7 3113,.7 3152.2 3190.2 3227.9 66.81 313.22 3134.8 2056. 67.25 314.05 3173.8 2148. 67.58 314.26 3212.3 2241. 67.65 314.98 3250.3 2333. 68.09 315.49 3288.0 2426. .02 .89 .37 .67 .65 2056.9 314.1 1432.11 N 2149.0 314.1 1495.65 N 2241.3 314.1 1559.97 N 2333.7 314.1 1624.91 N 2426.4 314.2 1690.68 N 1476.42 W 1543.06 W 1609.30 W 1675.12 W 1740.35 W A Gyro da t a D i r e c t i ona I Survey ~.P. EXPLORATION ~ELL: NK-28, 5.5"DP location: NIAKUK FIELD, Iob Number: AK0696G350 NORTH SLOPE, ALASKA Page SUBSEA DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet~ DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 266.0 304.8 343.2 380.7 417.6 67.12 315.68 3326.1 67.18 316.24 3364.9 67.75 316.71 3403.3 68.14 316.14 3440.8 68.57 316.40 3477.7 2518.7 2610.8 2703.0 2795.6 2888.5 .99 i~8.~8 31.4.2 .52 2610.9 314.3 .71 2703.2 314.4 .65 2795.8 314.4 .49 2888.7 314.5 1756.72 N 1805.05 W 1822.97 N 1869.11 W 1889.94 N 1932.72 W 1957.08 N 1996.60 W 2024.25 N 2060.86 W 3453.3 3489.1 3525.1 3560.2 3595.3 69.55 315.56 3513.4 68.53 314.93 3549.2 69.30 314.41 3585.2 69.57 314.18 3620.3 69.36 314.27 3655.4 2981.8 3075.1 3168.4 3262.1 3355.7 .25 2982.1 314.5 .18 3075.5 314.6 .92 3168.8 314.6 .34 3262.4 314.6 .23 3356.0 314.5 2091.41 N 2157.72 N 2223.32 N 2288.70 N 2354.01 N 2125.76 W 2191.50 W 2257.86 W 2324.88 W 2391.99 W 630.0 664.3 698.4 733.0 768.0 69.97 314.16 3690.1 69.97 314.18 3724.4 70.19 314.32 3758.5 69.34 314.34 3793.1 69.60 314.45 3828.1 3449.5 3543.4 3637.4 3731.2 3824.9 .62 3449.8 314.5 .01 3543.7 314.5 .26 3637.8 314.5 .84 3731.6 314.5 .27 3825.2 314.5 2419.40 N 2484.87 N 2550.47 N 2616.04 N 2681.56 N 2459.19 W 2526.58 W 2593.92 W 2661.03 W 2727.94 W 802.5 837.3 872.8 908.9 946.1 70.03 314.26 3862.6 69.23 314.00 3897.4 69.25 313.67 3932.9 68.40 313.58 3969.0 67.86 313.98 4006.2 3918.7 4012.5 4106.0 4199.2 4292.0 .47 3919.1 314.5 .84 4012.8 314.5 .31 4106.3 314.5 .86 4199.6 314.5 .65 4292.4 314.4 2747.18 N 2812.46 N 2877.22 N 2941.55 N 3005.76 N 2795.05 W 2862.34 W 2929.79 W 2997.29 W 3064.30 W 983.1 019..1 054.4 088.7 122.5 68.82 314.58 4043.2 68.93 314.29 4079.2 69.71 315.10 4114.5 70.24 314.62 4148.8 70.19 313.82 4182.6 4385.0 4478.2 4571.8 4665.7 4759.8 1.11 4385.3 314.4 .29 4478.6 314.4 1.09 4572.1 314.4 .69 4666.1 314.5 .76 4760.2 3145 · 3070.65 N 3135.95 N 3201.74 N 3268.02 N 3333.64 N 3130.83 W 3197.44 W 3263.95 W 3330.55 W 3397.98 W A Gyro da t a D i r e c t i ona i Survey ~.P. EXPLORATION. ~ELL: NK-28, 5.5"DP Location: NIAKUK FIELD, Iob Number: AK0696G350 NORTH SLOPE, ALASKA Page SUBSEA DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet DOGLEG CLOSURE SEVERITY. DIST. AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 4156 4191 4226 4262 4298 .6 .3 .9 .6 .5 69.96 313.80 4216.7 69.40 312.96 4251.4 68.95 312.96 4287.0 69.13 312.73 4322.7 68.86 312.69 4358.6 4853.8 4947.6 5041.1 5134.4 5227.8 · 23 4854.2 314.4 · 97 4948.0 314 · 4 .45 5041.4 314.4 .28 5134.7 314.4 .27 5228 · 1 314.3 3398.72 N 3465.83 W 3463.13 N 3533.98 W 3526.82 N 3602.39 W 3590.32 N 3670.86 W 3653.64 N 3739.45 W 4316 4334 4352 4370 4389 .5 .3 .3 .6 .0 68.96 312.13 4376.6 69.18 312.50 4394.4 68.74 312.58 4412.4 68.36 312.22 4430.7 68.54 312.57 4449.1 5274.4 5321.1 5367.7 5414.3 5460.8 .07 5274.7 314.3 · 81 5321 . 4 314 . 3 · 89 5368 . 0 314 · 3 .02 5414.5 314.3 . 75 5461.0 314 . 3 3685.11 N 3716.55 N 3748.10'N 3779.48 N 3810.83 N 3773.90 W 3808.43 W 3842.81 W 3877.18 W 3911.52 W 4407 4426 4445 4464 4483 .5 .3 .1 .1 .0 67.92 312.78 4467.6 68.01 312.58 4486.4 67.72 312.36 4505.2 67.67 312.57 4524.2 67.83 312.80 4543.1 5507.2 5553.5 5599.8 5646.1 5692.4 .31 5507.4 314.2 .41 5553.7 314.2 .71 5600.0 314.2 .40 5646.3 314.2 .52 5692.5 314.2 3842.31 N 3873.73 N 3905.00 N 3936.24 N 3967.61 N 3945.66 W 3979.73 W 4013.89 W 4048.02 W 4082.03 W 45 45 45 45 45 01 20 39 58 76 .8 .8 .8 .8 .0 67.92 312.88 4561.9 67.62 312.75 4580.9 67.67 312.67 4599.9 67.48 312.56 4618.9 67.60 312.98 4636.1 5738.7 5784.9 5831.2 5877.4 5919.0 .24 5738.8 314.2 .64 5785.1 314.2 .19 5831.3 314.2 .43 5877.5 314.1 .90 5919.1 314.1 3999.10 N 4030.56 N 4061.92 N 4093.22 N 4121.45 N 4116.00 W 4149.95 W 4183.93 W 4217.94 W 4248.47 W 45 46 46 46 46 96.8 15..7 34.7 53.5 72.5 67.92 313.09 4656.9 67.66 313.55 4675.8 67.81 313.93 4694.8 67.87 314.03 4713.6 67.58 313.87 4732.6 5969.9 6016.2 6062.4 6108.7 6155.0 .62 5970.0 314.1 .00 6016.3 314.1 .78 6062.6 314.1 .21 6108.9 314.1 .66 6155.1 314.1 4156.20 N 4187.95 N 4219.95 N 4252.10 N 4284.22 N 4285.68 W 4319.36 W 4352.79 W 4386.11 W 4419.42 W ~.P. EXPLORATION ;ELL: NK-28, 5.5"DP Jocation: NIAKUK FIELD, Fob Number: AK0696G350 A Gyrodata NORTH SLOPE, ALASKA SUBSEA DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet' 4691.3 68.22 314.08 4751.4 4709.8 68.31 314.18 4769.9 4728.4 68.20 314.29 4788.5 4747.0 67.89 314.35 4807.1 4765.7 68.30 314.17 4825.8 4784.4 67.75 314.00 4844.5 ~inal Station Closure: Distance: 6201.3 6247.8 6294.2 6340.6 6387.0 6433.3 6433.49 Directional Survey DOGLEG CLOSURE SEVERITY DIST. AZIMUTH deg./ feet deg. 100 ft. 1.34 6201.5 314.1 .26 6247.9 314.1 .30 6294.4 314.1 · 64 6340.7 314.1 · 89 6387.1 314.1 1.15 6433.5 314.1 HORIZONTAL COORDINATES feet 4316.39 N 4348.73 N 4381.12 N 4413.52 N 4445.90 N 4478.16 N 4452.76 W 4486.09 W 4519.37 W 4552.55 W 4585.77 W 4619.07 W ft Az: 314.11 deg. Page Quality Control Comparisons B.P. EXPLORATION WELL: NK-28,. 5.5"DP Location: NIAKUK FIELD, NORTH SLOPE, ALASKA Job Number : AK0696G350 / AK0696G350 INRUN/OUTRUN Comparison INRUN OUTRUN INRUN Depth Inc Inc Delta Az 1015.0 10.04 10.14 -.100 318.05 2015.0 27.54 27.66 -.118 314.27 2515.0 44.39 44.68 -.289 312.43 2915.0 56.83 56.94 -.114 314.39 For Inclinations Greater than 10 degrees: Average Inclination Difference = -.1552 deg. Average Azimuth Difference = -.2835 deg. OUTRUN Az Delta 318.38 -.330 314.25 .020 312.84 -.405 314.81 -.419 gyro/data 4. QUALITY CONTROL SR350.DOC gyro/data QUALITY CONTROL REPORT JOB NUMBER' AK0696G350 TOOL NUMBER' MAXIMUM GYRO TEMPERATURE · MAXIMUM AMBIENT TEMPERATURE · MAXIMUM INCLINATION' AVERAGE AZIMUTH · WIRELINE REZERO VALUE ' REZERO ERROR / K' CALIBRATION USED FOR FIELD SURVEY' CALIBRATION USED FOR FINAL SURVEY · PRE JOB MASS BALANCE OFFSET CHECK ' POST JOB MASS BALANCE OFFSET CHECK] · CONDITION OF SHOCK WATCHES UPON ARRIVAL AT RIG · UPON COMPLETION OF SURVEY · UPON RETURN TO ATLAS 746 75.20 C 54.5 C 70.25 314.47 15 1.6 1482 1533 -.2 -.3 USED-.19 OK OK OK BOTTOM LINE COMPARISIONS M.D. INC AZIMUTH TVD FIELD sURVEY 8815 67.74 314.55 4844.4 FINAL SURVEY 8815 67.74 314.55 4844.4 NORTHING 4507.15N 4507.15N EASTING 4591.13W 4591.13W SR350.DOC gyro/data FUNCTION TEST JOB NUMBER' AK0696G350 5 Survey stations were collected at the measured depth shown below. The tables sho,.~.'.the repeatability of the gyro tool in both inclination and azimuth at one measured depth. ... ::; ~-i:~' '? · INCLINATION M.D. ft 1 2 3 4 5 8815 67.74 67.74 67.74 67.74 67.74 AZIMUTH M.D. ft 1 2 3 4 5 8815 314.55 314.55 314.55 314.55 314.55 SR350.DOC gyro/data EQUIPMENT AND CHRONOLOGICAL REPORT SR350.DOC gyro/data EQUIPMENT REPORT JOB NUMBER: AK0696G350 DOWNHOLE ELECTRONICS SURFACE ELECTRONICS PRIMARY TOOL No. 746 GYRO SECTION A0119 DATA SECTION C0073 POWER SECTION C0065 BACKUP TOOL No. 706 GYRO SECTION A0004 DATA SECTION C0035 POWER SECTION C0033 COMPUTER POWER SUPPLY PRINTER INTERFACE COMPUTER POWER SUPPLY PRINTER INTERFACE A0222 A0085 A0079 A0035 A0246 A0107 A0029 A0071 WIRELINE COMPANY' :._ CABLE SIZE: ATLAS WIRELINE 5/16" RUNNING GEAR 2 1/2" SYSTEM TOTAL LENGTH OF TOOL: MAXIMUM O.D.: 36 FEET 2.25 INCHES TOTAL WEIGHT OF TOOL: 250 POUNDS SR350.DOC gyroldata CHRONOLOGICAL REPORT JOB NUMBER' AK0696G350 06/20/96 04:30 05:00 06:00 09:20 10:45 14:30 18:00 TO LOCATION ARRIVED AT LOCATION MAKE UP TOOL R.I.H.-INRL~ SURVEY (CONTINUOUS COMMENCE OUTRUN LAY DOWN TOOL PROCESS SURVEY SR350.DOC gyro/data B.P. EXPLORATION ~ ~ "~"~ ?..3 NIAKUK FIELD WELL NO:NK-28 NORTH SLOPE, ALASKA Gyro Multishot Survey Inside 9.625" Casing Survey date' 26- JULY, 1996 Job number :AK0796C357MR RECEIVED SEP ~ o 199G 0il & (~a~ Cons. (:;ommi~sion Anchorage SR357.DOC gyro/ /data Gyrodata Incorporated RO. Box 79389 Houston, Texas 77279 713/461-3146 Fax: 713/461-0920 AugustT, 1996 Ms. Marion Sloan MB 7-2 B.P.Exploration 900 E.Benson Anchorage, AK 99519-6611 Re: NIAKUK FIELD, WELL NK-28, NORTH SLOPE AK Enclosed please find one (1) original eight (8) copies and six (6) disketts of the completed survey of Well #NK-28 We would like to take this opportunity to thank you for using Gyrodata and ;ve look forward to serving you in the future. Jack Asst ~E. May / Operations Manager JEM/fec Servinc, the Wortdv,'ide Enerqv ' '-' .... ~ ¢, ,nu._,~try with Precision Survey Ir'~strumo,'*tat~or; gyro/data CONTENTS JOB NUMBER :AK0796C357MR . . DISCUSSION , SURVEY CERTIFICATION SHEET SURVEY DETAILS 3. OUTRUN SURVEY LISTING 4. QUALITY CONTROL 5. EQUIPMENT AND CHRONOLOGICAL REPORT SR357.DOC gyro/data 1. DISCUSSION, SURVEY CERTIFICATION SHEET SR357.DOC gyro/data DISCUSSION JOB NUMBER' AK0796C357MR Tool 749 was run in WELL# NK-28 on ATLAS 15/32" Wireline inside drillpipe, survey was run without problems. SR357.DOC gyro/data SURVEY CERTIFICATION SHEET JOB NUMBER' AK0796C357MR The data for this survey and the calculations for this survey were obtained and performed by me according to standards and procedures as set forth by Gyrodata Limited, true and correct to the best of my knoWledge. TOM STODDARD OPERATIONS ENGINEER The data and calculations for this survey have been checked by me and conform to the standards and procedures as set forth by Gyrodata Limited. This report represents a directional survey of this well based on the original data obtained at the wellsite. Checked by :- JACK MAY ASST: OPERATIONS MANAGER SR357.DOC gyro/data 2. SURVEY DETAILS SR357.DOC gyro/data SURVEY DETAILS JOB NUMBER: AK0796C357MR CLIENT: B.P. EXPLORATION RIG: POOL #7 LOCATION: NIAKUK FIELD, ALASKA WELL: NK-28 LATITUDE: 70.333 N LONGITUDE: SURVEY DATE: 149.0 W 26 JULY, 1996 SURVEY TYPE : MULTISHOT IN 9.625 & 7 IN. CASING DEPTH REFERENCE: MAX. SURVEY DEPTH: ROTARY TABLE ELEVATION 60.1 21,250 SURVEY TIED ONTO: SURVEY INTERVAL: UTM CO-ORDINATES: (C350) AT 8815' 100' 0-700' 50' 700-3165' 100' 3165'-7515' 50' 7515'-21250' TARGET DIRECTION: 313.0 GRID CORRECTION: N/A CALCULATION METHOD: MINIMUM CURVATURE SURVEYOR: TOM STODDARD SR357.DOC ,gyro/data 3.~ SURVEY LISTING SR357.DOC A Gyroda t a D i r e c t i ona i Survey for B.P. EXPLORATION WELL: NK-28, 9 5/8"& 7"CASING Location: NIAKUK FIELD, NORTH SLOPE, ALASKA 'ob Number: AK0796C357MR .un Date: 26-Jul-96 08:00:00 ~urveyor: TOM STODDARD lalculation Method: MINIMUM CURVATURE iurvey Latitude: 70.333000 deg. N iub-sea Correction from Vertical Reference: 60.1 ft. ~zimuth Correction: lyro: Bearings are Relative to True North ~roposed Well Direction: 313.000 deg rerticat Section Calculated from Well Head Location ~losure Calculated from Well Head Location [orizontal Coordinates Calculated from Local Horizontal Reference A Gyro da t a D i r e c t i ona i Survey .P. EXPLORATION BLL. NK-28, 9 5/8"& 7"CASING ~cation: NIAKUK FIELD, NORTH SLOPE, ~b Number': AK0796C357MR ALASKA Page EASURED I N C L AZIMUTH VERTICAL VERTICAL DEPTH DEPTH SECTION feet deg. deg. feet feet SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 0.0 0.00 0.00 0.0 0.0 -60.1 0.00 0.0 0.0 0.0 N 0.0 E ~-21250ft.) A GYRO MULTISHOT SURVEY IN 9 5/8"& 7"CASING LL DEPTHS REFERENCED TO POOL~7 R.K.B. ELEV. OF 60.1' IE-IN DATA PROVIDED BY GYRODATA SURVEY NO. (G350) 115.0 .20 306.36 115.0 .2 54.9 215.0 .17 52.85 215.0 .4 154.9 315.0 .10 274.89 315.0 .4 254.9 415.0 .86 339.62 415.0 1.1 354.9 515.0 1.18 331.01 515.0 2.8 454.9 615.0 1.88 323.71 614.9 5.4 554.8 715.0 4.45 319.46 714.8 10.8 654.7 765.0 5.44 318.60 764.6 15.1 704.5 815.0 5.85 318.17 814.4 20.0 754.3 865.0 6.65 321.07 864.1 25.4 804.0 915.0 7.76 321.72 913.7 31.6 853.6 965.0 9.38 319.00 963.1 39.0 903.0 1015.0 10.14 318.38 1012.4 47.5 952.3 1065.0 10.88 315.80 1061.5 56.6 1001.4 1115.0 11.47 316.00 1110.6 66.2 1050.5 1165.0. 11.75 315.05 1159.6 76.3 1099.5 1215.0 12.18 314.32 1208.5 86.7 1148.4 1265.0 12.22 313.32 1257.4 97.2 1197.3 1315.0 13.32 313.11 1306.1 108.3 1246.0 .18 .30 .26 .82 .36 .72 2.58 1.98 .83 1.72 2.22 3.34 1.52 1.75 .2 306.4 .1 N .2 W .4 329.5 .3 N .2 W .4 339.9 .4 N .2 W 1.2 336.1 1.1 N .5 W 3.0 335.2 2.7 N 1.3 W 5.7 331.1 5.0 N 2.7 W 11.1 326.0 9.2 N 6.2 W 15.4 324.0 12.5 N 9.1 W 20.3 322.7 16.2 N 12.3 W 25.8 322.0 20.3 N 15.8 W 32.0 321.9 25.2 N 19.8 W 39.5 321.6 30.9 N 24.5 W 47.9 321.1 37.3 N 30.1 W 57.0 320.4 44.0 N 36.3 W 1.19 66.7 319.8 50.9 N 43.1 W .68 76.7 319.2 58.1 N 50.1 W .92 87.1 318.7 65.4 N 57.5 W .43 97.6 318.2 72.7 N 65.1 W 2.21 108.6 317.7 80.3 N 73.2 W A Gyroda t a D i r e c t i ona I Survey .P. EXPLORATION 'ELL: NK-28, 9 5/8"& 7"CASING ocation: NIAKUK FIELD, NORTH SLOPE, 'ob Number: AK0796C357MR ALASKA Page 2 iEASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet ]..365.0 15.11 313.50 1354.6 1415.0 16.34 314.05 1402.7 1465.0 18.52 315.28 1450.4 1515.0 20.90 316.75 1497.5 1565.0 23.26 317.55 1543.8 120.5 134.1 149.1 165.9 184.6 1294.5 3.58 120.9 317.2 88.7 N 82.1 W 1342.6 2.47 134.4 316.9 98.1 N 91.9 W 1390.3 4.43 149.4 316.7 108.6 N 102.5 W 1437.4 4.86 166.2 316.6 120.8 N 114.2 W 1483.7 4.75 185.0 316.7 134.5 N 127.0 W 1615.0 24.61 317.65 1589.5 1665.0 25.24 317.10 1634.8 1715.0 26.49 316.98 1679.8 1765.0 26.91 316.80 1724.5 1815.0 26.81 316.02 1769.1 204.9 225.9 247.6 270.0 292.6 1529.4 2.70 205.3 316.7 1574.7 1.35 226.4 316.8 1619.7 2.49 248.2 316.8 1664.4 .86 270.7 316.8 1709.0 .73 293.2 316.8 149.5 N 140.7 W 165.0 N 154.9 W 181.0 N 169.8 W 197.4 N 185.2 W 213.8 N 200.7 W 1865.0 25.74 316.27 1813.9 1915.0 25.88 316.75 1859.0 1965.0 26.48 315.97 1903.8 2015.0 27.66 314.25 1948.3 2065.0 29.32 313.38 1992.3 314.7 336.4 358.5 381.2 405.0 1753.8 2.14 315.4 316.8 1798.9 .50 337.1 316.7 1843.7 1.38 359.2 316.7 1888.2 2.82 381.9 316.6 1932.2 3.42 405.8 316.5 229.7 N 216.1 W 245.5 N 231.1 W 261.5 N 246.3 W 277.6 N 262.4 W 294.1 N 279.6 W 2115.0 30.70 311.95 2035.6 2165.0 31.84 310.34 2078.3 2215.0 32.62 309.89 2120.6 2265.0 34.24 310.09 2162.4 2315.0 36.85 310.25 2203.0 430.0 456.0 482.6 510.1 539.1 1975.5 3~12 430.7 316.2 2018.2 2.82 456.6 315.9 2060.5 1.64 483.1 315.6 2102.3 3.24 510.5 315.3 2142.9 5.23 539.5 315.0 311.0 N 298.0 W 328.1 N 317.5 W 345.3 N 337.9 W 363.0 N 359.0 W 381.7 N 381.2 W 2365.0 39.26 310.64 2242.4 2415.0' 41.38 311.54 2280.5 2465.0 42.89 312.34 2317.6 2515.0 44.68 312.84 2353.7 2565.0 47.04 313.87 2388.5 569.9 602.3 635.8 670.4 706.3 2182.3 4.85 570.2 314.8 2220.4 4.40 602.5 314.6 2257.5 3.20 636.0 314.5 2293.6 3.64 670.6 314.4 2328.4 4.95 706.5 314.3 401.7 N 404.6 W 423.0 N 429.0 W 445.4 N 454.0 W 468.8 N 479.4 W 493.5 N 505.5 W A Gyroda t a D i re c t i ona i Survey .P. EXPLORATION ELL- NK-28, 9 5/8"& 7"CASING ocation: NIAKUK FIELD, NORTH SLOPE, ob Number: AK0796C357MR ALASKA Page EASURED I N C L AZIMUTH VERTICAL DEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 2615.0 48.42 314.71 2422.1 2665.0 50.37 314.72 2454.7 2715.0 51.75 315.19 2486.1 2765.0 53.07 315.44 2516.6 2815.0 54.23 315.42 2546.2 743.3 781.2 820.1 859.7 899.9 2362.0 3.04 743.4 314.3 2394.6 3.90 781.4 314.3 2426.0 2.84 820.3 314.4 2456.5 2.68 859.9 314.4 2486.1 2.32 900.2 314.4 519.3 N 532.0 W 546.0 N 559.0 W 573.5 N 586.5 W 601.7 N 614.4 W 630.4 N 642.6 W 2865.0 55.40 314.66 2575.0 2915.0 56.94 314.81 2602.9 2965.0 58.08 314.42 2629.7 3015.0 59.08 313.62 2655.8 3065.0 60.24 313.15 2681.1 940.7 982.2 1024.4 1067.1 1110.2 2514.9 2.65 941.0 314.5 659.3 N 671.5 W 2542.8 3.10 982.6 314.5 688.5 N 701.0 W 2569.6 2.36 1024.7 314.5 718.1 N 731.0 W 2595.7 2.44 1067.4 314.5 747.8 N 761.7 W 2621.0 2.45 1110.6 314.4 777.4 N 793.1 W 3115.0 60.71 313.55 2705.7 31.65.0 62.02 313.48 2729.'7 3215.0 62.51 314.00 2752.9 3315.0 63.35 313.74 2798.4 3415.0 63.41 314.23 2843.2 1153.7 1197.6 1241.8 1330.9 1420.3 2645.6 1.17 1154.1 314.4 2669.6 2.63 1197.9 314.4 2692.8 1.34 1242.2 314.3 2738.3 .87 1331.2 314.3 2783.1 .45 1420.6 314.3 807.3 N 824.7 W 837.5 N 856.5 W 868.1 N 888.5 W 929.8 N 952.7 W 991.9 N 1017.0 W 3515.0 65.01 313.63 2886.8 3615.0 65.05 314.16 2929.0 3715.0 64.51 314.03 2971.6 3815.0 65.12 313.63 3014.1 3915.0 66.06 314.06 3055.5 1510.3 1600.9 1691.4 1781.9 1872.9 2826.7 1.68 1510.7 314.3 2868.9 .48 1601.3 314.2 2911.5 .54 1691.8 314.2 2954.0 .70 1782.3 314.2 2995.4 1.02 1873.3 314.2 1054.3 N 1081.9 W 1117.2 N 1147.2 W 1180.2 N 1212.2 W 1242.8 N 1277.4 W 1305.9 N 1343.1 W 4015.0 66.80 313.23 3095.4 4115.0. 66.81 313.22 3134.8 4215.0 67.25 314.05 3173.8 4315.0 67.58 314.26 3212.3 4415.0 67.65 314.98 3250.3 1964.6 2056.5 2148.6 2240.9 2333.3 3035.3 1.07 1965.0 314.2 3074.7 .02 2056.9 314.1 3113 . 7 . 89 2149 . 0 314 . 1 3152.2 .37 2241.3 314.1 3190.2 .67 2333'. 7 314.1 1369.2 N 1409.4 W 1432.1 N 1476.4 W 1495.6 N 1543.1 W 1560.0 N 1609.3 W 1624.9 N 1675.1 W A Gyro da t a D i r e c t i o n a i Survey .P. EXPLORATION ELL- NK-28, 9 5/8"& 7"CASING ocation: NIAKUK FIELD, NORTH SLOPE, ob Number: AK0796C357MR ALASKA EASURED DEPTH feet I N C L AZIMUTH VERTICAL DEPTH deg. deg. feet VERTICAL SECTION feet Page SUBSEA DOGLEG CLOSURE DEPTH SEVERITY DIST. AZIMUTH feet deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 4515 4615 4715 4815 4915 .0 .0 .0 .0 .0 68.09 315.49 3288.0 67.12 315.68 3326.1 67.18 316.24 3364.9 67.75 316.71 3403.3 68.14 316.14 3440.8 2425 2518 2610 2702 2795 .9 .2 .2 .4 .0 3227.9 3266.0 3304.8 3343.2 3380.7 .65 2426.4 314.2 .99 2518.8 314.2 .52 2610.9 314.3 .71 2703.2 314.4 .65 2795.8 314.4 1690.7 N 1740.4 W 1756.7 N 1805.1 W 1823.0 N 1869.1 W 1889.9 N 1932.7 W 1957.1 N 1996.6 W 5015 5115 5215 5315 5415 .0 .0 .0 .0 .0 68.57 316.40 3477.7 69.55 315.56 3513.4 68.53 314.93 3549.2 69.30 314.41 3585.2 69.57 314.18 3620.3 2887 2981 3074 3167 3261 .8 .0 .3 .6 .2 3417.6 3453.3 3489.1 3525.1 3560.2 .49 2888.7 314.5 1.25 2982.1 314.5 1.18 3075.5 314.6 .92 3168.8 314.6 .34 3262.4 314.6 2024.3 N 2060.9 W 2091.4 N 2125.8 W 2157.7 N 2191.5 W 2223.3 N 2257.9 W 2288.7 N 2324.9 W 5515 5615 5715 5815 5915 .0 .0 .0 .0 .0 69.36 314 .27 3655.4 69 . 97 314 . 16 3690 . 1 69.97 314 .18 3724 .4 70 · 19 314 · 32 3758.5 69 . 34 314 . 34 3793 · 1 3354 3448 3542 3636 3730 .8 .6 .5 .5 .3 3595.3 3630.0 3664.3 3698.4 3733.0 .23 3356.0 314.5 .62 3449.8 314.5 .01 3543.7 314.5 .26 3637.8 314.5 .84 3731.6 314.5 2354.0 N 2392.0 W 2419.4 N 2459.2 W 2484.9 N 2526.6 W 2550.5 N 2593.9 W 2616.0 N 2661.0 W 6015 6115 6215 6315 6415 .0 .0 .0 .0 .0 69.60 314.45 3828.1 70.03 314.26 3862.6 69.23 314.00 3897.4 69.25 313.67 3932.9 68.40 313.58 3969.0 3823 3917 4011 4105 4198 .9 .7 .5 .0 .2 3768.0 3802.5 3837.3 3872.8 3908.9 .27 3825.2 314.5 .47 3919.1 314.5 .84 4012.8 314.5 .31 4106.3 314.5 · 86 4199.6 314.5 2681.6 N 2727.9 W 2747.2 N 2795.1 W 2812.5 N 2862.3 W 2877.2 N 2929.8 W 2941.6 N 2997.3 W 6515.0 6615.0, 6715.0 6815.0 6915.0 67.86 313.98 4006.2 68 . 82 314 . 58 4043 . 2 68.93 314.29 4079.2 69 · 71 315 · 10 4114 . 5 70 . 24 314 · 62 4148 · 8 4291.0 4383 .9 4477.2 4570.7 4664.6 3946.1 3983.1 4019.1 4054.4 4088.7 .65 4292.4 314.4 1.11 4385.3 314.4 .29 4478.6 314.4 1.09 4572.1 314.4 · 69 4666.1 314.5 3005.8 N 3064.3 W 3070.6 N 3130.8 W 3135.9 N 3197.4 W 3201.7 N 3264.0 W 3268.0 N 3330.5 W A Gyr oda t a D i r e c t i ona~ Survey . P. EXPLORATION ~LL- NK-28, 9 5/8"& 7"CASING Dcation: NIAKUK FIELD, NORTH SLOPE, Db Number: AK0796C357MR ALASKA Page EASURED I N C L AZIMUTH VERTICAL QEPTH DEPTH feet deg. deg. feet VERTICAL SECTION feet SUBSEA DEPTH feet DOGLEG CLOSURE SEVERITY DIST.~ AZIMUTH deg./ feet deg. 100 ft. HORIZONTAL COORDINATES feet 7015.0 70.19 313.82 4182.6 7115.0 69.96 313.80 4216.7 7215.0 69.40 312.96 4251.4 7315.0 68.95 312.96 4287.0 7415.0 69.13 312.73 4322.7 4758.7 4852.7 4946.4 5039.9 5133.3 4122.5 4156.6 4191.3 4226.9 4262.6 .76 4760.2 314.5 .23 4854.2 314.4 · 97 4948 . 0 314 . 4 .45 5041.4 314.4 .28 513.4.7 314 . 4 3333.6 N 3398.0 W 3398.7 N 3465.8 W 3463.1 N 3534.0 W 3526.8 N 3602.4 W 3590.3 N 3670.9 W '7515.0 68.86 312.69 4358.6 7565.0 68.96 312.13 4376.6 7615.0 69.18 312.50 4394.4 7665.0 68.74 312.58 4412.4 7715.0 68.36 312.22 4430.7 5226.6 5273.3 5320.0 5366.7 5413.2 4298.5 4316.5 4334.3 4352.3 4370.6 .27 5228.1 314.3 1.07 5274.7 314.3 .81 5321.4 314.3 .89 5368.0 314.3 1.02 5414.5 314.3 3653.6 N 3739.5 W 3685.1 N 3773.9 W 3716.5 N 3808.4 W 3748.1 N 3842.8 W 3779.5 N 3877.2 W 7765.0 68.54 312.57 4449.1 7815.0 67.92 312.78 4467.6 7865.0 68.01 312.58 4486.4 7915.0 67.72 312.36 4505.2 7965.0 67.67 312.57 4524.2 5459.7 5506.1 5552.5 5598.8 5645.0 4389.0 4407.5 4426.3 4445.1 4464.1 .75 5461. 0 314.3 1.31 5507.4 314.2 . 41 5553 . 7 314 . 2 .71 5600.0 314.2 · 40 5646 . 3 314 . 2 3810.8 N 3911.5 W 3842.3 N 3945.7 W 3873.7 N 3979.7 W 3905.0 N 4013.9 W 3936.2 N 4048.0 W 8015.0 67.83 312.80 4543.1 8065.0 67.92 312.88 4561.9 8115.0 67.62 312.75 4580.9 8165.0 67.67 312.67 4599.9 8215.0 67.48 312.56 4618.9 5691.3 5737.6 5783.9 5830.2 5876.4 4483.0 4501.8 4520.8 4539.8 4558.8 .52 5692.5 314.2 .24 5738.8 314.2 .64 5785.1 314.2 .19 5831.3 314.2 .43 5877.5 314.1 3967.6 N 4082.0 W 3999.1 N 4116.0 W 4030.6 N 4149.9 W 4061.9 N 4183.9 W 4093.2 N 4217.9 W 8260.0 67.60 312.98 4636.1 8315.0' 67.92 313.09 4656.9 8365.0 67.66 313.55 4675.8 8415.0 67.81 313.93 4694.8 8465.0 67.87 314.03 4713.6 5918.0 5968.9 6015.2 6061.4 6107.7 4576.0 4596.8 4615.7 4634.7 4653.5 .90 5919.1 314.1 .62 5970.0 314.1 1.00 6016.3 314.1 .78 6062.6 314.1 .21 6108.9 314.1 4121.5 N 4248.5 W 4156.2 N 4285.7 W 4188.0 N 4319.4 W 4219.9 N 4352.8 W 4252.1 N 4386.1 W HOW~odD O~ .~~i~,~'~b~Ofi.>.~:'fi~i$SjOR Date: Attn ALASKA OIL + GAS CONSERVATION~, ~n~ 3001 ~ORC~NE DR~VE RE: 22 August 1996 Transmittal of Data ANCHOR-AGE AK, 99501. Sent by: HAND CARRY WELL NK-28 Dear Sir/Madam, Enclosed, please find the data as described below: # DESCRIPTION 1 MAC FINAL BL+RF 16$~ FINAL BL+RF I~/CCL FINAL BL+RF Run # 1 Run # 1 Run # 1 ECC No. 6752.00 6752.01 Please sign and return to: Attn· Re,ney D. Paulson Western Atlas Logging Services 5600 B Street Suite 201 Anchorage, AK 99518 Received by: Date: HOWARD OKLAND Attn. ALASKA OIL + GAS CONSERVATION 3001 PORCUPINE DRIVE ANCHOP~AGE ~LK, 99501. Date: 22 August 1996 RE: Transmittal of Data Sent by: HAND CARRY Dear Sir/Madam, Enclosed, please find the data as described below: WELL # DESCRIPTION ECC No. Run # 1 6752.00 Received by: Please sign and return to: Attn. Rodney D. Paulson Western Atlas Logging Services 5600 B Street Suite 201 Anchorage, 2LK 99518 Or FAX to (907) 563-7803 ~~ Date: DEPARTMENT OF NATURAL RESOURCES DIVISION OF OIL AND GAS August 20, 1996 TONY KNOWLES. GOVERNOR COMM COMM ~ ...._..-- 3601 C STREET ANCHORAGE, / NRO _ ARCO Alaska, Inc. P.O. Box 100360 Anchorage, Alaska 99510-0360 Attention: Joseph A. Leone Via Fax (263-4894) and Mail Subject: ;?-"': ?.ECElYED / / / Manager, Greater Pt. MclntyreArea L. ~(0" O~ % kUO ~. ~99~ "~est.Ni~ Well ~ ~K,28)~ase Operation on ADL 34626 Alaska 0il & Gas Cons. c0mm~SSi0n . · _ Anchorage Dear Mr. Leone: The Division of Oil and Gas has reviewed ARCO's July 31, 1996 request to initiate lease operations for the West Niakuk Well #2 (NK-28) on ADL 34626. With regard to this request, production volumes allocated to NK-28 through the use of well tests performed at a minimum of two per month is acceptable to the Division for purposes of reporting royalty to the lease. All production from NK- 28 shall be allocated to ADL 34626, and ARCO and Exxon, as the owners of ADL 34626, shall individually account for the production from the well on the monthly royalty report. Should the Niakuk Pa,~icipating Area (NPA) be expanded to include all or potions of ADL 34626, no reallocation of the royalty share of production allocated to the lease prior to the approval date of the revision of the participating area will be permitted. Because the well is in the south half of ADL 34626, the Division agrees that for purposes of determining the royalty value of oil and gas, and field and processing cost deductions, that the 1980 Prudhoe Bay Settlement Agreement, the ARCO and Exxon ANS Royalty Litigation Settlement Agreements, and the ARCO and Exxon ANS Gas Royalty Settlement Agreements apply to the production allocated to NK-28. Joseph A. Leone August 20, 1996 Page 2 Finally, BPX, as sub-operator of the NPA, was notified in a letter approving their request for lease operations for ADL 34625 that the Division expects an application to expand the NPA by December 1, 1996. The letter requests that additional portions of ADLs 34625 and 34630, as well as portions 34626 and 34629 be included in an expanded NPA. The letter to BPX is attached for your information. S~!ncerely, Director Attachment CC: A. N. Bolea - BPX David Johnston - AOGCC John E. Pilkinton - ADOR TONY KNOWLES, GOVERNOR ALASKA OIL AND GAS CONSERVATION COMMISSION 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 August 9, 1996 Mr. J. A. Leone Greater Pt Mclntyre Area Manager ARCO Alaska, Inc. P O Box 100360 Anchorage, AK 99510-0360 Re: West Niakuk #2 (NK-28) File: Well NK-28 (96-93) Request to Commingle Production ~ Dear Mr. Leone: Your application to commingle NK-28 was received August 2, 1996. Your request is to commingle production from NK-28 with that from the Niakuk pool in surface facilities prior to processing in the Lisburne Production Center (LPC). The Commission approves surface commingling of production from NK-28 with production from other pools for processing at the Lisburne Production Center. Well test based production allocation shall be used to determine NK-28 production volumes. Allocation data and well test data will be supplied to the Commission monthly in both computer file and report formats along with the data from other pools producing to the LPC. Specifically, ARCO shall determine production as follows: i. Conduct well tests to determine production rates for each well in all pools being commingled. ii. Calculate each well's theoretical monthly production (TMP) based on well test rate(s) and actual time on production. iii. Sum the TMP volume for all wells in all pools. iv. Determine an allocation factor as the ratio of the metered volume to the TMP for all wells in all pools (i.e., metered/TN[P). v. Calculate each well's actual monthly production (AMP) volume as: AMP = TMP x Allocation Factor. GULL Attachment 1: Niakuk Area Map- NK-28 Lease Operation NK-I~ NIAKUK PA BPX, A~I NK-12 GULL IS ~2 H LE~ If you have any questions, please contact me at (907) 263-4431 or at (907) 265-6846. Sincerely, ~]. A. Leone Greater Pt. McIntyre Area Manager cc: A. Bolea - BP Exploration (Alaska) Inc. ]. Branch- Exxon Company, USA D. Johnston - Alaska Oil and Gas Conservation Commission ]. Pilkinton - Alaska Depariment of Revenue ARCO Alaska, Inc. Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 276 1215 Joseph A. Leone Manager Greater Pt. Mclntyre Area July 31, 1996 Mr. David W. Johnston, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-3192 RE: .Request to Commingle Production from West Niakuk Well #2 Dear Mr. Johnston, ARCO and Exxon have completed drilling and completion activity at West Niakuk Well #2 (NK-28). The well was drilled to a total depth of 21405' MD-RKB, and completed across the Kuparuk formation. Facility tie-in work is in progress, and the well is expected to be ready for first production in early August. The well will be produced as a Lease Operation on ADL 34626 prior to integration of interests at Niakuk. Consistent with existing practices, ARCO and Exxon would like approval by the AOGCC to commingle production with other Niakuk/Alapah production for processing at the Lisburne Processing Center (LPC). Production allocation will be based on the existing well test methodology approved by the AOGCC, based on well tests conducted at the Heald Point drillsite facility. If you have any questions, please contact me at (907) 263-4431 or John Groth at (907) 265-6846. jt~S.inc. Lereed1 n~~y~' Greater Pt. McIntyre Area Manager cc: A. Bolea- BP Exploration (Alaska) Inc. J. Branch- Exxon Company, USA K. Boyd - Department of Natural Resources J. Pilkinton- Alaska Department of Revenue ARCO Alaska, Inc. Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 276 1215 Joseph A. Leone Manager Greater Pt. Mclntyre Area july 31, 1996 Mr. Kenneth A. Boyd, Director Department of Natural Resources, Division of Oil and Gas 3601 C Street, Suite 1380 Anchorage, Alaska 99593-5948 RE: Application for a Lease Operation of West Niakuk Well ~ (NK-28) on ADL 34626 Dear Mr. Boyd, ARCO Alaska, Inc. ("ARCO"), for itself and on behalf of Exxon Company, USA ("EXXON"), hereby requests approval to initiate a lease operation on ADL 34626. ARCO will serve as the lease operator for ADL 34626. · West Niakuk Well ~ (NK-28), drilled to a total depth of 21405' MD-RKB, has penetrated oil bearing Kuparuk Formation. The has been completed and is expected to begin producing in early August. The bottom hole location is shown in Attachment 1 relative to neighboring Niakuk wells and the Niakuk Participating Area. Lease ADL 34626 has a royalty rate of 12.5% and is owned 50% each by ARCO and EXXON. West Niakuk #2 was drilled from Heald Point and has access to Greater Point McIntyre Area and IPA shared facilities. West Niakuk #2 will be production tested at the Heald Point facility and commingled with other Niakuk/Alapah production for processing at the Lisburne Processing Center (LPC). Production allocation will be based on the existing well test methodology approved by the AOGCC, DNR, and the Department of Revenue. The well's production will be reported separately for Volume Accounting, Royalty, and Production Tax purposes. West Niakuk #2 is outside of the current Prudhoe Bay Unit; however, the well is in the south half of ADL 34626 (Sec. 22, T12N, R15E, UM) that was in the original Prudhoe Bay Unit area. Hence, it is our understanding that for the purpose of determining the royalty value of oil and field and processing cost deductions therefrom, that the 1980 Prudhoe Bay Settlement Agreement, the ANS Royalty Litigation Settlement Agreements, and the ANS Gas Royalty Settlement Agreements apply to this well's production. E P, AND U M State of Alaska Alaska Oil and Gas Conservation Commission TO: David Johnst. ,~ Chairman~¢;> DATE: June 18, 1996 THRU' Blair Wondzeli, P. !. Supervisor FILE NO: azikfrdd.doc ,-" ~ ~""" ', ,..,,., Chuck Scheve, ~- £ SUBJECT: Petroleum Inspector BOPE Test- Pool 7 BPX - Niakuk- NK-28 PTD # 96-93 Niakuk Oil Pool Saturday, February 4,1995: ! traveled to Pool Rig 7 and witnessed the initial BOPE test on the Niakuk NK-28 Well. As the attached AOGCC BOPE Test Report shows there were 3 failures. The Annular Preventer and two valves on the choke manifold failed the initial test. Repairs were made on the Annular and one choke valve the other choke valve was greased. These 3 components were then retested and passed. The rig was clean and all equipment seemed to be in good working order. The location was clear and all excess equipment was properly stored. Side Note The surface casing on this well was set at 7493' and the hole took roughly 10 days to drill. Drilling Foreman Tommy Johnson stated that 100% excess was used on the lead cement and no cement returns were observed at surface. The well plan read that if less than a 12 PPG EMW was obtained on the leak off test to notify the drilling engineer. Summary: I witnessed the BOPE test on Pool Arctic Rig 7 drilling BPX's Niakuk well # 28 - test time 8 hours - 3 failures. Attachment: azikfrdd.XLS X Unclassified STATE OF ALASKA OIL AND GAS CONSERVATION COMMISSION BOPE Test Report OPERATION: Drlg: X Workover:~ DATE: 6/18/96 Drlg Contractor: POOL Rig No. 7 PTD # 96-93 Rig Ph.# 659-4815 Operator: BPX Rep.: Tommy Johnson Well Name: NK-28 Rig Rep.: .. . Jimmy Greco Casing Size: 13 I~/3 Set ~ 7,493 Location: Sec. 36 T. f2N R. 15E Meridian Test: Initial X Weekly Other , , UM Test MISC. INSPECTIONS: Location Gen.: OK Housekeeping: OK (Gen) PTD On Location Yes Standing Order Posted Yes Well Sign OK Dri. Rig OK Hazard Sec. OK FLOOR SAFETY VALVES: Upper Kelly/IBOP Lower Kelly / IBOP Ball Type Inside BOP Quan. Pressure ~ 250/5,000 250/5,000 P/F BOP STACK: Quan. Annular Preventer 1 Pipe Rams Lower Pipe Rams 1 Blind Rams l Choke Ln. Valves ~ HCR Valves 2 , Kill Line Valves 1 Check Valve N/A' Test Press. 250/3500 250/5,000 PIF F/P P P P P P CHOKE MANIFOLD: No. Valves 17 No. Flanges 34 ,, Manual Chokes f Hydraulic Chokes 2 Test Pressure 250/5,000 250/5,000 Functioned Functioned P/F ACCUMULATOR SYSTEM: System Pressure 3100 Pressure After Closure 1250 MUD SYSTEM: Visual Alarm 200 psi Attained After Closure minutes 30 sec. Trip Tank OK OK System Pressure Attained 2 minutes 50 sec. Pit Level Indicators O/~ OK Blind Switch Covers: Master: Yes Remote: Yes Flow Indicator OK OK, Nitgn. Bti's: 6 Botfi, e .s~ Meth Gas Detector OK OK 2200 PSI Average Psig. H2S Gas Detector OK OK Equipment will be made within 0 days. Notify the Inspector and follow with Written or Faxed verification to the AOGCC Commission Office at: Fax No. 276-7542 Inspector North Slope Pager No. 659-3607 or 3687 if your call is not returned by the inspector within 12 hours please contact the P. I. Supervisor at 279-t433 I II II II I IIIJ II I II I II REMARKS: The Annular Preventer failed, the element was chan~d and retested. Two valves on the choke manifold failed, one was greased and one was rebuilt, both were retested and passed. ~ Distribution: odg-Well File c - OperJRig c - Database c - Trip Rpt File c- Inspector STATE WITNESS REQUIRED? YES X NO 24 HOUR NOTICE GIVEN YES X NO Waived By: Witnessed By: Chuck Scheve FI-021L (Rev. 12/g4) AZIKFRDD.XLS STATE OF'ALASKA ALASKA OIL AND GAS CONSERVATION coMMIssION 3001' Porcupine Drive Anchorage Alaska 99501-3192 Re: THE APPLICATION OF ARCO ALASKA, INC. for an order granting' an exception to spacing requirements of Title 20 AAC 25.055 to provide for the drilling of the West Niakuk No. 2 delineation oil well in the Pmdhoe Bay Unit. ) Conservation Order No. 381 ) ) ) ARCO Alaska, Inc. ) West Niakuk No. 2 ) ) June 4, 1996 IT APPEARING THAT: ARCO Alaska, Inc. submitted an application dated May 16, 1996 requesting exception to the well spacing provisions of Title 20 AAC 25.055 (3) to allow drilling the ARCO West Niakuk No. 2 delineation oil well to an undefined oil pool, with a producing location within 500 feet of a quarter section line, adjacent to the Niakuk Participating Area on the North Slope. 2. Notice of opportunity for public hearing was published in the Anchorage Daily News on April 18, 1996 pursuant to 20 AAC 25.540. 3. No protests to the application were received. FINDINGS: 1. The West Niakuk No. 2 delineation oil well will be drilled as a deviated hole with a surface location 1258' from the south line (FSL) and 1112' from the east line (FEL) of Section 36, T12N, R15E, Umiat Meridian (UM) and a proposed producing location 2519' FSL and 2909' FEL of section 22, T12N, R15E, UM. 2. Offset owners BP Exploration (Alaska) Inc., Exxon Corporation and the State of Alaska have been duly notified. 3. An exception to the well spacing provisions of Title 20 AAC 25.055 (3) is necessary to allow the drilling of this well. TONY KIVOWLE$, GOVERNOI~ 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 June 13. 1996 Steve Shultz, Senior Drlg_.~:no,' BP Exploration (Alaska) L. nc P O Box 196612 nncnorage, AK 99519-6612 Re' Well # Company Permit # Surf Loc Btmhole Loc N%-28 revised BP Exploration (Alaska.) Inc 96-93 1258'NSL; 1112'WEL, Sec 36, T12N, R15E, UM 2097'SNL.. 1677'EWL.. Sec ~9~_, T12N, R15E, UM Dear ~ Shultz: Enclosed is the approved revised application for permit to drill the above referenced well. The provisions of the original approved permit dated May 28.1996 are in effect for this revision. Sincerelv. L;aVld "(~;,~J onnston Chairman BY ORDER OF THE COMMISSION dlf/encl c: Dept ofFish & Game, Habitat Section - w/o encl Dept of Environmental Conservation - w/o encl STATE OF ALASKA ALASKA Oh_ AND GAS CONSERVATION COMMISSION PERMIT TO DRILL REVISED 06/03/96 20 AAC 25.005 [] Drill [] Redrill Ilb. Type of well [] Exploratory [] Stratigraphic Test [] Development Oil la. Type of work [] Re-Entry [] Deepen I [] Service [] Development Gas [] Single Zone [] Multiple Zone 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool ARCO Alaska Inc. KBE = 60.1' Niakuk Oil Pool 3. Address 6. Property Designation P.O. Box 196612, Anchorage, Alaska 99519-6612 ADL 034626 4. Location of well at surface 7. Unit or Property Name 11. Type Bond (See 20 AAC 25.025) 1258' NSL, 1112' WEL, SEC. 36, T12N, R15E Niakuk At top of productive interval 8. Well Number Number 25100302630-277 2519' NSL, 2909' WEL, SEC. 22, T12N, R15E NK-28 Attotal depth 9. Approximate spud date Amount $200,000.00 2097' SNL, 1677' EWL, SEC. 22, T12N, R15E 06/05/96 '~2. Distance to nearest property line113. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) ADL034629, 3183'I NK-07,14.4'@1550'-2250'TVD 2560 21305' MD / 9385' TVD 16. To be completed for deviated wells 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} Kick Off Depth 400' Maximum Hole Angle 68.7° Maximum surface 3820 psig, Attotal depth (TVD) 9200' / 4500 psig 18. Casing Program Specifications Setting Depth Size Top Bottom Quantity of Cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 30" 20" 94# H-40 Weld 80' Surface Surface 80' 80' 260 sx Arctic Set (Approx.) .... 16" 13-3/8" 68# L-80 Btc 7428' 40' 40' 7468' 4361' 2550 sx PF 'E', 1146 sx Class 'G' 12-1/4" 9-5/8" 47# L-80 Btc-M 18960' 40' 40' 19000' 8549' 332 sx Class 'G' 8-1/2" 7" 29# L-80 NSCC 2305' 18850' 8494' 21305' 9385' 280 sx Class 'G' ,,, 19. To 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 MD TVD Structural Conductor RECEIVED Surface Intermediate Production JUN 0 3 1996 Liner Alaska 011 & Gas Cons. Commission Anchorage Perforation depth: measured true vertical '~0. Attachments [] Filing Fee [] Property Plat [] BOP Sketch [] Diverter Sketch [] Drilling Program [] Drilling Fluid Program [] Time vs Depth Plot [] Refraction Analysis [] Seabed Report [] 20 AAC 25.050 Requirements Contact Engineer Name/Number: Larry Wolfson, 564-5510 Prepared By Name/Number Kathy Campoamor, 564-5122 21.1 hereby certify that t~~goingfjsT/true /A -nd c°rrect..~/,,zx_. ~-~. to the best of my knowledge /_,~/~'~¢,//~/ Signed SteveShultz ~',~ v~-,- ~ "~,'~'.-'~%,,.~ Title Senior Drilling Engineer Date Commission Use Only "~ermit Number I APl Number I Approval Date I See cover letter 96-93 50-029-22678 05/28/96 for other requirements Conditions of Approval: Samples Required [] Yes ~ No Mud Log Required [] Yes ,~ No. Hydrogen Sulfide Measures ~i~¢'es [] No Directional Survey Required '~Yes [] No Required Working Pressure for DOPE [] 2M; [] 3M; ~ 5M; [] 10M; [] 15M Other: Original Signed By by order of ..Approved By David W. Johnston Commissioner the commission Date (,¢' {~'(~, Form 10-401 Rev. 12-01-85 Submit In Triplicate REVISED DRILLING PERMIT CONFIDENTIAL I Well Name: INK-28 I Well Plan Summary ]Type of Well (producer or injector): I Producer Surface Location: 1258' FSL, 1112' FEL, SEC 36, T12N, R15E Target Location: 2519' FSL, 2909' FEL, SEC 22, T12N, R15E Bottom Hole Location: 2097' FNL, 1677' FWL, SEC 22, T12N, R15E I AFE Number: 1730429 I I Estimated Start Date: I 6/5/96 ] I MD: 121,305' I ITVD: I Rig: I Pool#7 I Operating days to complete: I 55 19385' I IKBE: 160'1' [Well Design (conventional, slimhole, etc.): [ Conventional/ERD Formation Markers: (all depths feet RKB) Formation Tops MD TVD Base Permafrost 1868 1811 Ugnu 10194 5351 Coleville Shale 16417 7610 West Sak 16775 7741 Formation pressure +_9.2 ppg EMW HRZ 19762 8825 Formation pressure +_9.4 ppg EMW Kuparuk Sand 20272 9010 Formation pressure 8.7-9.4 ppg EMW Kingak 20947 9255 Formation pressure +_9.4 ppg EMW Casing/Tubin[ Prol,ram. (all depths feet RKB) Hole Csg/ Wt/Ft Grade Conn. Length Top Btm Size Tbg OD MD/TVD MD/TVD 30" 20" 94# H-40 WLD 80 GL 80/80 16" 13 3/8" 68# L-80 BTC 7428 40/40 7468/4361 12 1/4" 9 5/8" 47# L-80 BTC-M 18960 40/40 19000/8549 8 1/2" 7" 29# L-80 NSCC 2305 18850/8494 21305/9385 Supplemental Information: A spacing exception for this well has been submitted previously to account for the leases lines involved. This is the revision to replace the original permit which only accounted for the well to be drilled to 19,000'. RECEIVED JUN O 3 1996 Alaska Oil & Gas Cons. Commission Anchorage CONFIDENTIAL Logging/Formation Evaluation Program: Open Hole Logs: Surface MWD/Gyro Intermediate MWD Production GR/CDR/ADN(150' above Kupamk to TD) Cased Hole Logs GR (Across the A-10 and West Sak interval) Mud Program'. I Special Considerations 170/30 Mineral Oil Base Mud Surface Mud Properties: Spud Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 8.5-9.5 300 40-60 30-60 60-80 8.5-9.0 10-25 Intermediate Mud Properties: 70/30 Mineral Oil Base Mud Density PV Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 9.4-10.6 20-30 22-28 12-18 18-40 NA <6 HTHP Production Mud Properties: 90/10 Mineral OBM Density PV Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 9.8-10.5 20-30 22-27 14-16 18-30 NA <5 HTHP Well Control: Well control equipment consisting of 5000 psi WP pipe rams, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, B OPE and drilling fluid system schematics on file with AOGCC. Directional: KOP: 400' start of variable build 1.0°/100 fi -2.5°/100 fi Maximum Hole Angle: 68.7° @ 314° azimuth Close Approach Wells: NK-07 1550' to 2250' Shut-in safety distance 14.4' NK-28 Well Plan Summary Page 2 RECEIVED JUN 0 5 1996 Alaska Oil & Gas Cons. Commission CONFIDENTIAL NK-28 Drilling Hazards/Risks Abnormal differential reservoir pressure are not expected in this well. Original reservoir pressure is 4500 psi at 9200' SS (9.4 ppg EMW). The most likely reservoir pressure is estimated at 4100 psi (8.6 ppg EMW). Maximum surface pressure would be 3820 psi with .1 psi/ft gas gradient. NK-07 has been identified as a close approach wells will be shut in. NK-08 passes the close approach criteria and will continue to produce, but gas lift will cease and the annulus pressure bled off until after surface casing is set. Well Control: Well control equipment consisting of 5000 psi WP pipe rams, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, BOPE and mud fluid system schematics on file with AOGCC. Contact: Adrian Clark 564-4720 Steve Shultz 564-5405 Larry Wolfson 564-5510 RECEIVED JUN 0,3 1996 Alaska 011 & Gas Cons, Comm~ss~op Anchorage NK-28 Well Plan Summary Page 3 5/22/96~SMS CONFIDENTIAL Operations Summary . o , o o . MIRU drilling rig. NU and function test diverter. Spud well and drill 16" hole with water bas mud to 1,000' and kick off, build angle to 68.7° at a 314° azimuth per attached directional program. Hold tangent angle to casing setting depth at +_7468'MD. Run and cement 13 3/8" casing in place and bring cement to surface. Test casing to 3000 psi for 30 minutes. Install and test BOP to 5000 psi. Note AOGCC witness or waiver on the morning report. M/U 12 1/4" BHA and drill 10' of new hole and perform LOT. Drill 12 1/4" hole to 19,000'MD. Run and cement 9 5/8" casing. Test casing to 3000 psi for 10 minutes. Test BOP to 5000 psi. Note AOGCC witness or waiver on the morning report. M/U 8 1/2" bit and BHA, drill 10' of new hole and perform LOT. Drill 8 1/2" hole to 21,305'. Run and cement 7" liner in place. Perforate and run production equipment. RDMO NK-28 Well Plan Summary Page 4 5/22/96uSMS Halliburton Shut-In Recommendation Well: NK-28 Wp8 AWD Date: 5/29/96 HALLIBURTON ENERGY SERVICES The surface hole for NK-28 has two close wells (NK-07, NK-08) to be concerned with to a point at 2200' MD. Calculations show that NK-08 and NK-07 are very close to the planned well. While it is not required to shut-in NK-08, it is recommended that it be shut in due to extreme close proximity. NK-07 is required to be shut to a depth of at least 2,300' MD in the planned well. The tolerance lines were drawn assuming both were shut in to a depth of 2200' MD. NK-08 can be shut in at the SSSV, while NK-07 will require the setting of a plug at 2300' MD minimally. Halliburton Drilling Systems recommends the surface hole BHA include an orienting sub, with Gyro-Data on hand to survey as needed to verify position. To avoid complications in drilling this well, NK-28 was planned and is valid with the following survey program: 0' - 2,200' MD 0' - 2,200' MD 2,200' - 8,500' MD 2,200- 8,500' MD 8,500- 19,000' MD 19,000 - TD (21304' MD) Drill BPHM, Gyro as necessary to verify position. Run Gyro. Drill with BPHM tied into Gyro to 2,200' MD. Run Gyro Gyro + IHRMWD Drill BPHM Enclosed in the well packet is a copy of the detailed traveling cylinder for the two close approach wells to verify the reasoning behind this requested survey program. Sincerely, Lance Spencer Directional Drilling Coordinator t £CEIVED JUN 0 3 1.998 Alaska 0il & ~as Cons. Commission AnChorage Survey Reference: WELLHEAD Reference World Coordinates: Lat. 70.20.49 N - Long. 148.12.08 W Reference GRID System: Alaska State Plane Zone: Alaska 4 Reference GRID Coordinates: (ft): 5979790.24 N 721452.96 E North Aligned To: TRUE NORTH Vertical Section Reference: WELLHEAD Closure Reference: WELLHEAD TVD Reference: WELLHEAD Proposal Report Calculated using the Minimum Curvature Method Computed using WIN-CADDS REV2.2.1 Vertical Section Plane: 313.70 deg. Pr% Tim~, Wellpath ID: NK-~, Last Revision: 5/2~,. BPX - Shared Services Alaska State Plane: Zone4 PBU: Niakuk NK-28 As-Built NK-28 Wp8 AWD Measured Incl Drift Subsea TVD Course T O T A L GRID Coordinates Closure Vertical Build Walk DLS Cum. Expected Total Max Hor Min Hor Dir. Vert Survey Tool Depth Dir. Depth Length Rectangular Offsets Northing Fasting Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (ft) (deg.) (deg.) (ft) (ft) (fi) (ft) (ft) (ft) (ft) (ft) (deg.) (ft) (dg/100ft) (dg/100ft) (dg/100ft) (deg) (ft) (ft) (ft) (ft) (deg.) (ft) TIE 1N 0.00 0.00 0.00 -60. I0 0.00 0.00 0.00N 0.00E 5979790.24 721452,96 0.0£@ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00E 0.00 0.00 0.00 0.00 BPHM-PBD I00.00 0.00 0.00 39.90 100.00 100.00 0.00N 0.00E 5979790.24 721452.96 0.012@ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00E 2.00 2.00 0.00 0.06 BPHM-PBD 200.00 0.00 0.00 139.90 200.00 100.00 0.00N 0.00E 5979790.24 721452.96 0.0C@ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00E 2.00 2.00 0.00 0.21 BPHM-PBD 300.00 0,00 0.00 239.90 300.00 100.00 0.00N 0.00E 5979790.24 721452.96 0.0C@ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00E 2.00 2.00 0.00 0.36 BPHM-PBD KOP / START OF BUILD @ 1.00 deg/100 ft 400.00 0.00 0.00 339.90 400.00 100.00 0.00N 0.00E 5979790.24 721452.96 0.0C@ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00E 2.00 2.00 0.00 0.51 BPHM-PBD 500.00 1.00 313.00 439.89 499.99 100.00 0.60N 0.64W 5979790.82 721452.30 0.87@313.00 0.87 1.00 0.00 1.00 1,0 0.59N 0.6~hr 2.00 2.00 43.00 0.66 BPHMoPBD 600.00 2.00 313.00 539.86 599.96 100.00 2.38N 2.55W 5979792.55 721450.34 3.4~;@313.00 3.49 1.00 0.00 1.00 2.0 2.38N 2.5ON 2.01 2.01 43.00 0.81 BPHM-PBD START OF BUILD @ 2.00 deg/100 ft 700.00 3.00 313,00 639.76 699.86 100.00 5.36N 5.74W 5979795.43 721447.06 7.85@313.00 7,85 1.00 0.00 1.00 3.0 5.34N 5.7trW 2.04 2.01 43.00 0.96 BPHMoPBD 800.00 5.00 313.00 739.51 799.61 100.00 10. lIN 10.84W 5979800.03 721441.82 14.83@313.00 14.83 2.00 0.00 2.00 5.0 10.07N 10.81BV 2.12 2.02 43.00 1.I1 BPHM-PBD 900.00 7.00 313.00 838.96 899.06 100.00 17.24N 18.4b~'W 5979806.93 721433.97 25.28@313.00 25.28 2.00 0.00 2.00 7.0 17.15N 18.5'/W 2.29 2.04 43.00 1.26 BPHM-PBD START OF BUILD @ 2.50 degtl00 ft 1000.00 9.00 313.00 937.98 998.08 100.00 26.73N 28.67W 5979816.12 721423.52 39.212@313.00 39.19 2.00 0.00 2.00 9.0 26.56N 28.82W 2.61 2.07 43.00 1.41 BPHM-PBD 1100.00 11.50 313.00 1036.38 1096.48 100.00 38.87N 41.6t~/' 5979827.86 721410.15 56.9~@313,00 56.99 2.50 0.00 2.50 11.5 38.57N 41.9{7~V 3.11 2.14 43.00 1.56 BPHM-PBD 1200.00 14.00 313.00 1133.91 1194.01 I00.00 53.92N 57.82W 5979842.43 721393.57 79.0~@313.00 79.05 2.50 0.00 2.50 14.0 53.43N 58.27W 3.83 2.23 43.00 1.71 BPHM-PBD 1300.00 16.50 313.00 1230.38 1290.48 100.00 71.85N 77.05W 5979859.79 721373.82 105.3{~@313.00 105.35 2.50 0.00 2.50 16.5 71.10N 77.7c%V 4.75 2.37 43.00 1.86 BPHM-PBD 1400.00 19.00 313.00 1325.61 1385.71 I00.00 92.64N 99.35W 5979879.91 721350.92 135.84@313.00 135.83 2.50 0.00 2.50 19.0 91.55N 100.37W 5.88 2.56 43.00 2.02 BPHM-PBD 1500.00 21.50 313.00 1419.42 1479.52 100.00 116.25N 124.6e3hr 5979902.75 721324.92 170.45@313.00 170.44 2.50 0.00 2.50 21.5 I14.71N 126.0gW' 7.21 2.80 43.00 2.18 BPHM-PBD 1600.00 24.00 313.00 1511.63 1571.73 I00.00 142.62N 152.94W 5979928.28 721295.88 209.12@313.00 209.10 2.50 0.00 2.50 24.0 140.54N 154.88W 8.74 3.08 43.00 2.36 BPHM-PBD 1700.00 26.50 313.00 1602.07 1662.17 100.00 171.71N 184.14W 5979956.43 721263.84 251.77@313.00 251,75 2.50 0.00 2.50 26.5 168.98N 186.68W 10.47 3.42 43.00 2.56 BPHM-PBD END OF BUILD 1760.00 28.00 313.00 1655.41 1715.51 60.00 190.44N 204.2JW 5979974.57 721243.21 279.24@313.00 279.22 2.50 0.00 2.50 28.0 187.28N 207.17W 11.58 3.63 43.00 2.68 BPHM-PBD Base PermafrOst 1867.13 28.00 313.00 1750.00 1810.10 107.13 224.74N 241.01W 5980007.76 721205.43 329.5z1@313.00 329.51 0.00 0.00 0.00 28.0 220.81N 244.68W 13.58 4.03 43.00 2.91 BPHM-PBD Proposal Report Wellpah, Measured incl Drift Subsea TVD Course T O T A L GRID Coordinates Closure Vertical Build Walk DLS Cum. Expected Total Max Hor Min Hor Dir. Vert Survey Tool Depth Dir. Depth Length Rectangular Offsets Northing Easting Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (ft) (deg.) (deg.) (fl) (fi) (ft) (ft) (ft) (fl) (ft) fit) (deg.) (ft) (dg/100ft) (dg/100ft) (dg/100ft) (deg) (ft) (ft) (ft) fit) (deg.) fit) START OF CURVE @ 2.50 deg/100 fl 1960.00 28.00 313.00 1832.00 1892.10 92.87 254.48N 272.9CW 5980036.54 721172.68 373.14@313.00 373.11 0.00 0.00 0.00 28.0 249.88N 277.1gW 15.33 4.39 43.00 3.12 BPHM-PBD 2060.00 30.50 313.09 1919.24 1979.34 100.00 287.83N 308.6UN 5980068.83 721136.01 422.~@313.01 421.97 2.50 0.09 2.50 30.5 282.39N 313.68W 17.40 4.81 43.01 3.37 BPHM-PBD 2160.00 33.00 313.17 2004.27 2064.37 I00.00 323.80N 347.0CW 5980103.65 721096.56 474.61@313.02 474.58 2.50 0.08 2.50 33.0 317.40N 352.98W 19.68 5.25 43.03 3.64 BPHM-PBD 2200.00 34.00 313.20 2037.63 2097.73 40.00 338.91N 363.1CW 5980118.27 721080.03 496.6~@313.03 496.66 2.50 0.07 2.50 34.0 332.10N 369.403/ 20.62 5.43 43.04 3.76 BPHM-PBD 2201.00 34.02 313.20 2038.46 2098.56 1.00 339.29N 363.51W 5980118.64 721079,61 497.25@313.03 497.21 2.50 0.07 2.50 34.0 332.47N 369.88W 20.65 5.44 43.04 3.76 BPHM-PBD 2260,00 35.50 313.24 2086.93 2147.03 59.00 362.33N 388.02W 5980140.94 721054.43 530.8~;@313.04 530.85 2.50 0.07 2.50 35.5 354.86N 395.0CW 22.11 5.72 43.05 3.95 BPHM-PBD 2360.00 38.00 313.30 2167.05 2227.15 100.00 403.33N 431.55Wq 5980180.64 721009,67 590.71@313.06 590.68 2.50 0.06 2.50 38.0 394.64N 439.72W 24.79 6.20 43.08 4.29 BPHM-PBD 2460.00 40.50 313,35 2244.48 2304.58 100.00 446.74N 477.61W 5980222.67 720962,39 653.98@313.09 653.94 2.50 0.05 2,50 40.5 436.68N 487.03W 27.68 6.70 43.11 4.68 BPHM-PBD 2560.00 43,00 313.40 2319.08 2379.18 100.00 492.46N 526.01W 5980266.95 720912.67 720.5{~@313.11 720.52 2.50 0.05 2.50 43.0 480.91N 536.84W 30,77 7.21 43.14 5.10 BPHM-PBD 2660.00 45.50 313,44 2390.71 2450.81 100.00 540.42N 576.68W 5980313.39 720860.61 790.33@313.14 790.29 2.50 0.04 2.50 45.5 527.23N 589.07W 34.06 7.72 43.17 5.57 BPHM-PBD 2760.00 48.00 313,48 2459.22 2519.32 100.00 590.52N 629.54W 5980361.90 720806.29 863.15@313.17 863,12 2.50 0.04 2.50 48.0 575.55N 643.62W 37.56 8.23 43.20 6.09 BPHM-PBD 2860.00 50.50 313,52 2524,50 2584.60 I00.00 642.66N 684.45"W 5980412.40 720749.84 938.9C@313.19 938.86 2.50 0.04 2.50 50.5 625.78N 700.38W 41.26 8.74 43.23 6.65 BPHM-PBD 2960.00 53.00 313.55 2586.41 2646.51 I00.00 696.75N 741.41W 5980464.79 720691.35 1017.49@313.22 1017.39 2.50 0.03 2.50 53.0 677.82N 759.24W 45.16 9.25 43.26 7.26 BPHM-PBD 3060.00 55.50 313.59 2644.83 2704.93 100.00 752.68N 800.2CW 5980518.96 720630.94 1098.57@313.25 1098.54 2.50 0.03 2.50 55.5 731.58N 820. I1W 49.24 9.74 43.28 7.91 BPHM-PBD 3160.00 58.00 313.62 2699.66 2759.76 100.00 810.35N 860.7c'~W 5980574.82 720568.72 1182.19@313.27 1182.15 2.50 0.03 2.50 58.0 786.94N 882.8fi'W 53.51 10.21 43.31 8.61 BPHM-PBD 3260.00 60.50 313.65 2750.79 2810.89 100.00 869.65N 922.95W 5980632.26 720504.81 1268.12@313.30 1268.09 2.50 0.03 2.50 60.5 843.82N 947.300[/ 57.96 10.67 43.34 9.36 BPHM-PBD 3360.00 63.00 313.67 2798.12 2858.22 100.00 930.46N 986.67W 5980691.17 720439.33 1356.2C@313.32 1356.17 2.50 0.03 2.50 63.0 902.09N I013.5CW 62.57 11.10 43,36 10.14 BPHM-PBD 3460.00 65.50 313.70 2841.57 2901.67 100.00 992.66N 1051.8CW 5980751.43 720372.41 1446.25@313.34 1446.23 2.50 0.03 2.50 65.5 961.65N 1081.15W 67,34 11.51 43.39 10.96 BPHM-PBD 3560,00 68,00 313.73 2881.04 2941.14 100.00 1056.15N I118.2CW 5980812.93 720304.17 1538.12@313.37 1538.10 2.50 0.03 2.50 68.0 1022.40N II50.1[*W 72.25 11.88 43.41 11.82 BPHM-PBD END OF CURVE 3588.39 68.71 313.73 2891.52 2951.62 28.39 1074.39N 1137,27W 5980830.61 720284.57 1564.51@313.37 1564.49 2.50 0.02 2.50 68.7 1039.86N II70.0CW 73.65 11.99 43.42 12.06 BPHM-PBD CASING POINT OD = 13 3/8 in, ID = 12.41 in, Weight = 68.00 lb/ft. 7466.99 68.71 313.73 4300.00 4360.10 3878.59 3572.66N 3748.4c'~V 5983251.39 717601.61 5178.31@313.62 5178.30 0.00 0.00 0.00 68.7 3430.73N 3883.94W 267.85 26.58 43.65 46.97 BPHM-PBD 8468.00 68.71 313.73 4663.51 4723.61 I001.01 4217.43N 4422.38W 5983876.31 716909.31 6110.98@313.64 6110.98 0.00 0.00 0.00 68.7 4047.79N 4584.37W 318,12 30.37 43.66 56.07 BPHM-PBD 8500.00 68.71 313.73 4675.13 4735.23 32.00 4238.04N 4443.92W 5983896.29 716887.18 6140.812@313.64 6140.79 0.00 0.00 0.00 68.7 4067.51N 4606.7CCW 319.73 30.50 43.66 56.36 BPHM-PBD 8501.00 68.71 313.73 4675.49 4735.59 1.00 4238.68N 4444.5gW 5983896.91 716886.48 6141.73@313.64 6141.73 0.00 0.00 0.00 68.7 4068.13N 4607.4fiw 319.78 30.50 43.66 56.37 BPHM-PBD UG4A (K- 15) 10193.18 68.71 313.73 5290.00 5350.10 1692.18 5328,65N 5583.83W 5984953.47 715716.30 7718.3~@313.66 7718.39 0.00 0.00 0.00 68.7 5111.24N 5791.52W 404.78 36.92 43.68 71.76 BPHM-PBD W. Sak 15452.82 68.71 313.73 7200.00 7260.10 5259.64 8716,46N 9124.78W 5988238.58 712080.17 12618.97@313.69 12618.97 0.00 0.00 0.00 68.7 8353.44N 9471.8cW 669.06 56.93 43.70 119.64 BPHM-PBD Colville Shale 16416.63 68.71 313.73 7550.00 7610.10 963.81 9337.27N 9773.65W 5988840.75 711414.03 13516.98@313.69 13516.98 0.00 0.00 0.00 68.7 8947.56N 10146.2C'3,V 717.49 60.59 43.70 128.42 BPHM-PBD CASING POINT OD = 9 5/8 in, ID = 8.68 in, Weight = 47.00 lb/ft. 19000.00 68.71 313.73 8488.13 8548.23 2583.37 11001.26N l1512.Sfi3hr 5990455.08 709628.79 15923.9~@313.70 15923.99 0.00 0.00 0.00 68.7 10540.02N 11953.84W 847.32 70.43 43.71 151.95 BPHM-PBD 19001.00 68.71 313.73 8488.49 8548.59 1.00 I I001.90N I1513.57N 5990455.70 709628.10 15924.93@313.70 15924.93 0.00 0.00 0.00 68.7 10540.64N 11954.54W 847.37 70.43 43.71 151.96 BPHM-PBD HRZ 19762.42 68.71 313.73 8765.00 8825.10 761.42 11492.35N 12026.14W 5990931.59 709101.99 16634.37@313.70 16634.37 0.00 0.00 0.00 68.7 I1010.00N 12487.32~V 885.63 73.33 43.71 158.89 BPHM-PBD rage .~ ~. ....... e~ --,a .......... Date: 5/29/96 Proposal Report Wellpath ID: NK-28 Wp8 Measured Incl Drift Subsea TVD Course T O T A L GRID Coordinates Closure Vertical Build Walk DLS Cmn. Expected Total Max Hor Min Hot Dir. Vert Survey Tool Depth Dir. Depth Length Rectangular Offsets Northing Easting Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (ft) (deg.) (deg.) (fi) (fi) (ft) (ft) (ft) (ft) (ft) (ft) (deg.) (ft) (dg/100ft) (dg/100ft) (dg/100ft) (deg) (ft) (ft) (ft) (ft) (deg.) (ft) Target (5/7/96) / Kuparuk 20271.87 68.71 313.73 8950.00 9010.10 509.45 11820.49N 12369.12~t' 5991250.01 708750.00 17109,04@313.70 17109.04 0.00 0.00 0,00 68.7 i1324,04N 12843.7b"W 911.24 75.27 43.71 163.53 BPHM-PBD Kingak 20946.53 68.71 313.73 9195.00 9255.10 674.66 12255.05N 12823.32~V 5991671.72 708283.89 17737.64@313.70 17737.64 0.00 0.00 0.00 68.7 11739.92N 13315.87W 945.14 77.84 43.71 169.68 BPHM-PBD CASING POINT OD = 7 in, ID = 6.28 in, Weight = 26.00 lb/ft. 21304.41 68.71 313.73 9324.96 9385.06 357.88 12485.57N 13064.2C%V 5991895.43 708036.64 18071.0~;@313.70 18071.09 0.00 0.00 0.00 68.7 12485.57N 13064.2Ohr 0.00 0.00 0.00 0.00 BPHM-PBD 21304.51 68.71 313.73 9325.00 9385.10 0.10 12485.63N 13064.33W 5991895.49 708036.57 18071.1~@313.70 18071.19 0.00 0.00 0.00 68.7 11960.59N 13566.3ON 963.13 79,20 43.71 172.94 BPHM-PBD 111 IN 0 0,00 313.00 O 0 N 0 E KII~ / SLAP[400 0,00 31:3,00400 0 N O [11 BUll 1) (,~ 1.(X)/1(~) ~ 8.~/~00 ct ['ND El~ DUILg 1760 ~.~ 313.(~~7~6 i~ N ~4 ~ ])~ 1867 ~.~) 313.~)1810 ~J N ~41 ~ S~ I:1r 1~ ~,~ 3~3,~ 1~ ~4 N 273 W I.-IORIZONI'AL VIEW (I'~P#~T NOR'I"I4) SCALF 1000 Ft. / ~/ISI[IN SURVE'Y REP WFLI~EAD VERTICAL VIEW SCALE 1000 et, / DIVISION TVD REP WELLHEAD VERTICAL SECTIENREF: WELLHEAD CURVE ~ 8800 34.00 313.80~ 339 N 363 W 8;E~31 34.(l~313Z~38CF,x) 339 N 364 14 [-.'NO DF CURVE 3588 68.71 313.73895~_ 1074 N 1137 14 7467 68,71 313.7343603573 N 3748 W 8468 68.71 313.7347844817 N 44;~8 W ~ 68.71 313.7347354838 N 4444 14 E~50168.71 313.7347364839 N 4445 W UG4A (K-15)1019368.71 313.7353505389 N 5584 14 14. Sak 1545368.71 313.7378608716 N 9185 W Cc~viEe Shale 1641768.71 313.7376109337 N 9774 14 lgO0068,71 313,738548J1001 Nl1513 1900168.71 313,738549,1008 Nl1514 w HRZ lg7(:~2 68,71 313,73~ 11498 N18QB6 14 Tar~qet 80872 68.71 313.73 9010 116BO N12~9 !4 (5/7/96) / Ingak 80947 68.71 31323 9855 12E55 N18883 W 0 . ~ O.OD 6 O MD TIE IN 0 ~ O,DO ~ ~00 MD 400 I . ~ O.OO 0 1 7~ I ~ 3.00 ,gQ8 -, * g,~ ~ 1000 MD START OF BUIL~ 2 8.53/:00 39 ~ 14.oo ~ 1BOO MD I X l g,oo ~ 14oo MD ~ .~zJ ~ 34,~ ~ 280~ MD 4~z _ 4000 ~ 5~7B 4786 5000 -- 5350 , 77~8 6000 -- 7610 8000 ~ ~g-. 88~ -lo~ o VERTICAL SECTI~ CASING POINT ll~TA OD MID Inc AZI TV]] N/S 13 3/8 in 7467 68.7~ 313.734360 :~73 N 3748 W 9 5/8 ;n1900068.71 313.738548 11001 Nl1513 w 7 In 81304 68.71 313.739385 18486 N13064 W T6p~le~; No~. TVD NS EW C.~ld X C~Id Y T~rget (5/7/96) C~OlO 11880 N 18369 V708750 5991850 fID Dep~;h(f't;) Toot Code ~-K-28 !t,/p8 0-81305 80.03 BPHM-PBD PROPOSED OH_ TVD 9385.10 MD 21304.51 VS 18071,1g N/S 18485.63 N E/W 13064,33 W .,.._68.71 8 ~0t93 ~ ~4A 18619 13517 1592§ 171C9 1000 L::~OOO30CC ~333 5(X]O 6000 700(] (EX](] 9CX30 10(XX] 11000 1~=~]0013000 14000 15E](]0i ¢::4X30 17000 · WELL PERMIT CHECKLIST COMPANY ,,'~,,',,"j~-, ADMINISTRATION WELL NAME GEOL AREA _~-------Z, ,-~') PROGRAM: exp [] dev [] reddl [] aery [] wellbore seg [] ann. disposal para req [] ENGINEERING APPR . 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. r , 14. Conductor string provided .................. ~"~'~U .v_- .._,_ ,,~/ .... .. , ..-/ . . _ ~.,~ ...... _ . 15. Surface casing protects ail known USDWs ......... (~N ~./~-~"/"~'~=,,,5'7~,-'~ ,,~ . '"J 16. CUT vol adequate to circulate on conductor & surf csg .... ~ N ..~ ~/7-' -- ' ,2 / / //' / Z' ? 17. CMT vol adequate to tie-in long string to surf csg ....... Y(~ .'~., _~ .~~~/_._,//t~. _~'-~,/,¢v3 (_..fi,,'./'/ _.~_,~ 18. CMT will cover all known productive hodzons ......... ~ N /////~t J '/ / / ' / v/~ 19. Casing designs adequate for C, T, B & permafrost ...... (:~N 20. Adequate tankage or reserve pit ................. ~ N ~ /' ~' / / -'"~' / / ,/ ,/ 21. Ifare-ddll, hasa 10403 for abndnmnt been approved. 22. Adequate wellbore separation proposed ............ (~) N ~,¢ '/.' ~. ' ~ /' ~ / ' '(//'-~ ..... - ' - 23. If diverter required, is it adequate ................ ~ N~~, ~--,'/~,.,/~ .,/~ .~ ~ .,~<'" ~('~" ~.., /~, 24. Ddlling fluid program schematic & equip list adequate ..... 25. BOPEs adequate ........................ (~ N 26. BOPE press rating adequate; test to ~j"'~::;)L,31~ psig.(~ N 27. Choke manifold complies w/APl RP-53 (May 84) ....... 28. Work will occur without operation shutdown .......... 29. Is presence of H2S gas probable ................ Y N(.,~. /.-%¢( REMARKS Permit fee attached ........................ Y ~ . ,' Lease number appropdate ................... r'~N '¢~ ~_..,,~ ,¢2~.f',,~.:~7Z r",~,]_./,£,~,,~^ ../',Lt. ,0/.,~-~,~ '-~,.., 7Z~"~ ~'-'~..,~' ~'-'~' Unique well name and number .................. Y1N ' Well located in a defined pool ................. Y] N Well located proper distance from drlg unit boundary ..... .Y~ N Well located proper distance from other wells ......... .Y~ N Sufficient acreage available in ddlling unit ........... Y( N / .,4 ./ .~ --//,~ / / ~ -' ,,~/// If deviated, is wellbore plat included .............. .Y]N ./~,,- Operator only affected party .................. Y{ N Operator has appropriate bond in force ............ YIN ~---(..~,~,_r' Permit can be issued without conservation order ...... Y~N ,,~ Permit can be issued without administrative approval .... '~'IN ,,'~/"~ ~ ~-----m.--'~ ~_J -~.~ .-,'¢~~.- _--'~.-'~ .-~_~/,'"-' ,,'- J,,"q-// Can permit be approved before 15-day wait ......... ~Y/N / -- '_~ ~. __ / _ .// /~..) .... ~ ' GEOLOGY / 30. Permit can be issued w/o hydrogen sulfide measures ..... Y .,~ 31. Data presented on potential overpressure zones ....... Y//N .~//.,~,/' ,/'7', 32. Seismic analysis of shallow gas zones ............ .//Y N 33. Seabed condition survey (if off-shore) .......... ./ff.. Y N 34. Contact name/phone for weedy procjress reports . . . ./'... Y N [~proratory only] GEOLOGY: ENGINEERING: JDH ~ COMMISSION: JDN '"",,.~ TAB ~ Comments/Instructions: HOW/I~ - AflFORMS'~"~kllst rev 4,/96 State of Alaska TO: Chairman' THRU' Alaska Oil and Gas Conservation Commission DATE: June 5, 1996 Blair Wondzell, .-,_. .- ,~. 1. Supervisor Bobby Foster, ~'¢.,2--- I SUBJECT: Petroleum Inspector FILE NO: EZ1 IFEDD.doc Diverter inspection ARCO - Niakuk 28 PTD # 96-0093 Niakuk Oil Pool Wednesday, June 5, 1996: I traveled this date to ARCO's Niakuk well 28 being drilled by Pool rig 7 and inspected and function tested the diverter system. As the attached AOGCC Diverter Systems Inspection Report shows the system was installed properly and the function test was satisfactory. The gas detection system was not tested since the system is tested ever 7,(~c~ was tested 6-1-96 and logged in on the systems log which i checked. Summary: i inspected and witnessed the diverter function test on Pool rig 7 drilling ARCO's Niakuk well 28. Attachment: EZ11FEDD.XLS X Unclassified Confidential (Unclassified if doc. reraoved ) Confidential NK-28 Well Plan Intermediate Casing Cement P'rogram Cement Supplier - HALLIBURTON CASING SIZE: 9-5/8" CIRC. T-EMP~ !25°F SPACERS: Pump 50 bbls mineral oil, followed by !00 bb!s Dual Spacer w/2 gal/bbl- stabilizer:. Follow the spacers with cement. CEMENT TYPE: "G" Premium -. ~.&DD~~S: 0.2% CFR 3'dispersant, 0.2% HALAD 344 fluid loss,.0.1% HR-5're~:...:.- : . . -: ..:' :~.. ' :i:.'7': :,!-;":.-'.;..~:-.'~;~. · ' . ' '_-'.:.":'. _~-~ 5.' ..,;,. i :~-:; ·_:5:,,'~ ;~.~':-7-'.,. ?:i. ' .WEIGHT: 15.8 ppg YIELD' 1.15 ft3/sx MIX WATER:'5 gps:fre~l~'wat~r-?i APPROX #SACKS- 440 sx (506 cuft) THICKENING TIME: 4-5 hfs OTHER coNSIDERATIONS: Perform lab tests on mixed cement/spacer/mud program and~ ....... ensure compatibility prior to pumping job. Ensure thickening times are adequate relative to. pumping job requirement. Displace at maximum rate (12-15 bpm). .. .. I2 1/4" x 9 5/8" casing annUlus _+50%+ 80' shoe-lOire -~- -. ..... ~ . -. . .... - i _ . · . . .:... . ' .7::' - ~ ' ~ . (. :i : .~:,... ... ; ~ , _ . . ' ~ _ ~: .... ' ..... 2:.~ ~- ~::.:2~.'.zJ_&;}~a2.~;~-3-:~:.~:~&:~,2~ .;.~;_~;.~2~.' ....... ~ ............ :--; · ....' ......... :;~'.;.;,.~:~o....~-~.-:~,x:;-~...:~'.,--~4~',~;vz~.Ji~>~5~;~-~.:~5~ TONY KNOWLES, GOVERNOR May 28, 1996 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 FAX: (907) 276-7542 Steve Schuitz, Senior Drilling Engineer ARCO Alaska lnc P O Box 196612 Anchorage, AK 99519-6612 Re: Well # Company Permit # Surf Loc Btmhole Loc Niakuk NK-28 ARCO Alaska, Inc. 96-093 1258'NSL, 1112'WEL, Sec 36, T12N, R15E, UM 1699'SNL, 2054'WEL, Sec 22, T12N, R15E, UM Dear Mr Schultz: 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. Blowout prevention equipment (BOPE) must be tested in accordance with 20 AAC 25.035. Sufficient notice (approximately 24 hours) of the BOPE test performed before drilling below the surface casing shoe must be given so that a representative of the Commission may witness the test. Notice may be given by contacting the Commission petroleum field inspector on the North Slope pager at 659-3607. BY ORDER OF THE COMMISSION slh/encl c: Dept of Fish & Game, Habitat Section - w/o encl Dept 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 [] Redrill 1 lb. Type of well [] Exploratory [] Stratigraphic Test [] Development Oil [] Re-Entry [] Deepen~ [] Service [] Development Gas [] Single Zone [] Multiple Zone 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool ARCO Alaska Inc. KBE = 59.8' Niakuk Oil Pool 3. Address 6. Property Designation P.O. Box 196612, Anchorage, Alaska 99519-6612 ADL 034626 4. Location of well at surface 7. Unit or Property Name 11. Type Bond (See 20 AAC 25.025) 1258' NSL, 1112' WEL, SEC. 36, T12N, R15E Niakuk At top of productive interval 8. Well Number Number 2S100302630-277 N/A NK-28 Attotal depth 9. Approximate spud date Amount $200,000.00 1699' SNL, 2054' WEL, SEC. 22, T12N, R15E 06/01/96 12. Distance to nearest property line l 13. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) ADL 034625, 2054'I NK-07, 18.7' @ 1900'-2050'TVD 2560 19000' MD / 8549' TVD 16. To be completed for deviated wells o ~ 17. Anticipated pressure {see 20 AAC 25.035 (e) (2)} Kick Off Depth 400' Maximum Hole Angle 68.7 i Maximum surface 3580 psig, At total depth (TVD) 9200' / 4500 psig 18. Casing Program Setting Depth Size Specifications Top Bottom Quantity of Cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 30" 20" 94# H-40 Weld 80' Surface Surface 80' 80' 260 sx Arctic Set (Approx.) 16" 13-3/8" 68# L-80 Btc 7428' 40' 40' 7468' 4361' 2550 sx PF 'E', 1146 sx Class 'G' 12-1/4" 9-5/8" 47# L-80 Btc-M 18960' 40' 40' 19000' 8549' 332 sx Class 'G' 19. To 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 MD TVD Structural Conductor Surface RECEIVED Intermediate Production Liner 2 2 1996 Alaska 0il & G~s Cons. Commission Anchorcge Perforation depth: measured true vertical i20. Attachments [] Filing Fee [] Property Plat [] BOP Sketch [] Diverter Sketch [] Drilling Program [] Drilling Fluid Program [] Time vs Depth Pict [] Refraction Analysis [] Seabed Report [] 20 AAC 25.050 Requirements Contact Engineer Name/Numbec Larry Wolfson, 564-5510 Prepared By Name/Number Kathy Campoamor, 564-5122 i21. I hereby certify that the foregoing is true and correct to the best of my knowledge Signed ~ ~~ /~/~.. ~_/,/~______~ SteveSChultz . ~ Title Senior Drilling Engineer Date - ~" -- % Commission Use Only Permit Number I APINumber ApprpvalE~ate I See cover letter ?(~ _ ?,.~ 50- 0.2. ~-- ~ ~. ~ 7 ~' ,~'/?--i~'/~(--? for other requirements Conditions of Approval: Samples Required [] Yes j~ No Mud Log Required [] Yes ,J~ No Hydrogen Sulfide Measures F'lYes ,~ No Directional Survey Required I~ Yes [] No Required Working Pressure for DOPE [] 2M; []3M; [] 5M; [] 10M; [] 15M Other: c?i.~Inat Signed By by order of Approved By David W. Johnston Commissioner the commission Date /lq, Form 10-401 Rev. 12-01-85 Submit In Triplicate CONFIDENTIAL Well Name: INK-28 Well Plan Summary I Type of Well (producer or injector): I Producer ISurface Location: I 1258' FSL, 1112' FEL, SEC 36 T12N, R15E Bottom Hole Location:I 1699' FNL, 2054' FEL, SEC 22, T12N, R15E I AFE Number: 1 730429 I I Estimated Start Date: I 6/1/96 I I Rig: [Pool #7 I Operating days to complete: I 55 IMI): 1 19000' I ITVD: 18549'' I IKBE: 159.8' l Well Design (conventional, slimhole, etc.): IConventional/ERD Formation Markers: (all depths feet RKB) Formation Tops MD TVD Base Permafrost 1868 1811 Ugnu 10194 5351 West Sak 16775 7741 Minimum mud weight required: 9.5 ppg Casing/Tubing Program: (all depths feet RKB) Hole Csg/ Wt/Ft Grade Conn. Length Top Btm Size Tbg OD MD/TVD MD/TVD 30" 20" 94# H-40 WLD 80 GL 80/80 16" 13 3/8" 68# L-80 BTC 7428 40/40 7468/4361 12 1/4" 9 5/8" 47# L-80 BTC-M 18960 40/40 19000/8549 Supplemental Information-. Once the exception to drill the well has been reviewed and agreed upon, a sundry notice will be submitted to drill and complete the well in the Kuparuk Sand. RECEIVED ~,~,( ?_ 2 1996 Alaska Oil & Gas Cons. Commission Anchora0e CONFIDENTIAL Logging/Formation Evaluation Program: Open Hole Logs: Surface IVIWD Intermediate MWD Mud Program: Special Considerations ] 70/30 Mineral Oil Base Mud Surface Mud Properties: Spud Density Marsh Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 8.5-9.6 300 40-60 30-60 60-80 8.5 - 9.0 15-25 Intermediate Mud Properties: Fresh water LSND Density PV Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 9.4-10.6 20-30 22-28 12-20 20-40 NA <6 HTHP Production Mud Properties: 90/10 Mineral OBM Density PV Yield 10 sec 10 min pH Fluid (PPG) Viscosity Point gel gel Loss 9.8-10.2 25 25-30 20 30 NA <5 HTHP Well Control: Well control equipment consisting of 5000 psi WP pipe rams, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, B OPE and drilling fluid system schematics on file with AOGCC. Directional: KOP: 400' start of variable build 1.0°/100 ft -2.5°/100 ft Maximum Hole Angle: 68.7° @ 314° azimuth Close Approach Wells: NK-07 1900' to 2050' (Well to be shut in during drill by) RECEIVED MA'( 2 2 199G Alaska 011 & Gas Cons. Commission Anchorage NK-28 Well Plan Summary Page 2 5/22/96--SMS CONFIDENTIAL NK-28 Drilling Hazards/Risks Abnormal differential reservoir pressure are not expected in this well. Original reservoir pressure is 4500 psi at 9200' SS (9.4 ppg EMW). The most likely reservoir pressure is estimated at 4100 psi (8.6 ppg EMW). Maximum surface pressure would be 3820 psi with .1 psi/ft gas gradient. NK-07 has been identified as a close approach well and is to be shut in. · Well Control: Well control equipment consisting of 5000 psi WP pipe ram.q, blind rams, and annular preventer will be installed and is capable of handling maximum potential surface pressures. Diverter, BOPE and mud fluid system schematics on file with AOGCC. Contact: Adrian Clark 564-4720 Steve Shultz 564-5405 LarryWolfson 564-5510 R[CEIVED NK-28 Well Plan Summary Page 3 5/22/96~SMS BPX - Shared Services Drilling Alaska State Plane' Zone4 PBU ' Niakuk NK-28 Estimated NK-28 Wp? 0 -- 400 -- 700 -- 998 -- 1000 2000 2098 2958 ._ 3000 4000 4361 4784 5000 5351 7741 8000 8549 88?6 -- 9000 9011 9856 9386 VERTICAL VIEW SCALE 1000 ft.. / DIVISION TVD REF: WELLHEAD VERTICAL SECTION REF: WELLHEAD 0.00' e 0 MD TIE IN 0.00' 8 200 MB 0.00' e 400 MB KOP / START OF' BUILB 3,00' @ 700 MD START OF BUILD @ 8.00'/I00 8 1000 MD START OF BUILD e 2,50'/100 8 1800 MD B 1400 MD 8 1760 MD END OF BUILD 28,00' ~ 1868 MD Bose PerMaFrost !8.00' @ 1960 MD START OF CURVE 8 2.50'/100 Ft 34,00' 8 2200 MD 497 40.50' 8 8460 MD @ 2760 MB 55.50' ~ 3060 MI) 68. 70' ~ 3588 MD END OF' CURVE 517913 3/8 In 00. @ 7468 MD. 4361 6111 7719 CRITICAL POINT DATA M~ I nc Azl. TV~ N~% TIE IN 0,00' 313.00' O E KOP / START 4000.00'313,00' 400 0N 0£ OF' BUILD ~ 1,00'/100 Ft START OF BUILD 700 3.00'313.00' 700 5N 6 8 2,00'/100 START OF BUILD I000 9.00'313,00' 998 27N 29 @ 2.50'/100 END or BUILD1760 28.00'313.00' 1716 190 N 204 B~se 1868 28.00'313.00' 1811 225 N241 PermoFrost iSTART OF 1960 88.00'313.00' 1892 854 N273 :CURVE e 2.50'/100 2200 34,00'313.20' 2098 339 N363 END OF CURVE3588 68,70°313.73' 2952 1074 N 1137 746868,70'313.73' 4361 3573 N3749 846868.70'313.73' 4724 4a17 N4422 UG4A (K-15)10194 68.70'313.73' 5351 5329 N5584 V. S~k 16775 68.70'313.73' 7741 9568MO015 19000 68,70'313,73' 854911001 N 11513 19001 68.70'313.73' 854911002 NI1513 THRZ 19762 68.70'313.73' 882611498 N12026 Targe% 20872 68.70*313.73' 901111820 N12369 (5/7/96) / Kup~ruk Mlluveach 20946 68.70'313.73' 925612255 N12823 CASING POINT DATA OD MD ThC Azl TVD N/S E/~ 1~ 3/8 I; 7468 68.70' 313.73'43613573 ~3749 5/8 1900068.70' 313.73'854911~01 11513 7 In 2130468.70' 313.73' 938612485 N 13064 [Tar~e* Nome TVD NS EV Grid X Grid Y Target (5/7/96) 901111820 N 12369 W 708750 5991250 l id Depth(Ft) TootCode NK-~8 Vp7 0-846B 20.0! ~PHG-P)D 8468-1900020.05 BPIHRMgD-PBD 19000-21304 20,03 ~PHM-PBD 7468 MB 68.70' @ 8468 MD 68.70' 8 10194 MD UG4A (K-15) PROPOSED BHL TVD 9385,70 MD 21304.42 VS 18070.85 N/S 12485.42 N E/W 13064.07 W HALLIBuRTrl~ HORIZONTAl, VIEW. (TRUE NORTH) SCALE 1000 fl,/ DIVISION SURVEY REF: WELLHEAD %~ 5/16/96 8,59 om 14000 13000 18000 11000 10000 90008000700060005000400030002000lOOO 0 1000 ,ooo o ,ooo B ~2o~ ,~o~ooo 4__._~o ~ooo VERTICAL SECTION P~:~13.70'~ 13851 15924 16634 17109 17737 18071 6000 700(] 8000 9000 10000 11000 12000 68.70' e 16775 MD ~. Sak 70' @ 19000 MD 9 5/8 In 80, 8 19000 MD, 8549 TVD 6& 70' @ 19762 MD THRZ 6&70' 8 20272 MD Target (5/7/96) / Kuporuk 68.70' @ 20946 ND Mituveach 6~ 70' @ 21304 MD 7 In 8B, @ 81304 MD, 9386 TVB Date PIo%~ed ~ 5/1~/96 ,I 13000 14000 15000 16000 17000 18000 19000 Checked By ~ ~pp~ove~ By Date CONFIDENTIAL Operations Summary o o . o ° M/RU drilling rig. NU and function test diverter. Spud well and drill 16" hole with water bas mud to 1,000' and kick off, build angle to 68.7° at a 314° azimuth per attached directional program. Hold tangent angle to casing setting depth at _+7468'MD. Run and cement 13 3/8" casing in place and bring cement to surface. Test casing to 3000 psi for 30 minutes. Install and test BOP to 5000 psi. Note AOGCC witness or waiver on the morning report. M/U 12 1/4" BHA and drill 10' of new hole and perform LOT. Drill 12 1/4" hole to 19,000'MD. Run and cement 9 5/8" casing. Test casing to 3000 psi for 10 minutes. Test BOP to 5000 psi. Note AOGCC witness or waiver on the morning report. Sundry notice will be submitted prior to reaching the 13 3/8" casing point and will include the plan of drilling and completing in the Kuparuk Sand. RECEIVED [v',,~,Y ? t 1996 Alaska Oil & Gas C;ons. Commission Anchorage NK-28 Well Plan Summary Page 4 5/22/96--SMS Survey Reference: WELLHEAD Reference World Coordinates: Lat. 70.20.49 N - Long. 148.12.08 W Reference GRID System: Alaska State Plane Zone: Alaska 4 Reference GRID Coordinates: (fl): 5979790.38 N 721452.77 E North Aligned To: TRUE NORTH Vertical Section Reference: WELLHEAD Closure Reference: WELLHEAD TVD Reference: WELLHEAD Halliburton Energy Services - Drilling Systems PSL Proposal Report Calculated using the Minimum Curvature Method Computed using WIN-C.4DDS REV2.2.1 Vertical Section Plane: 313.70 deg. WELLPLAN FEASIBILITY STUDY This plan is for feasibility purposes only it h~s not yet been certifiedl Page 1 Proposal No: 95-176 Date: 5/15/96 Time: 5:54 pm W¢llpath ID: NK-28 Wp7 Last Revision: 5/15/96 BPX - Shared Services Drilling Alaska State Plane: Zone4 PBU: Nialcuk NK-28 Estimated NK-28 Wp7 Measured lnci Drift Subsea TVD Course T O T A L GRID Coordinates Closure Vertical Build Walk DLS Cum. Expected Total Max Hor Min Hor Dir. Vert Survey Tool Depth Dir. Depth Length Rectangular Offsets Northing Easting Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (fi) (deg.) (deg.) (ft) (fi) (fi) (fl) (ft) (ft) (fi) (ft) (deg.) (fi) (dg/100fi) (dg/100ft) (dg/100fi) (dcg) (ft) (ft) (fi) (ft) (deg.) (fi) 0.00 0.00 0.00 -60.70 0.00 0.00 0.00N 0.00 E 5979790.38 721452.77 0.00~ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00 E 0.00 0.00 0.00 0.00 BPHM-PBD 100.00 0.00 0.00 39.30 100.00 104).00 0.00N 0.00E 5979790.38 721452.77 0.0(~ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00E 2.01 2.01 0.00 0.10 BPHG-PBD 200.00 0.00 0.00 139.30 200,00 I00.00 0.00N 0.00 E 5979790.38 721452.77 0.0(}~ 0.00 0.00 0.00 0.00 0,00 0,0 0.00N 0.00 E 2.09 2.09 0.00 0.35 BPHG-PBD 300.00 0.00 0.00 239.30 300.00 100.00 0.00N 0.00 E 5979790.38 721452.77 0.00~ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00 E 2.26 2.26 0.00 0.60 BPHG-PBD KOP/START OF BUILD ~ 1.00 deg/100 fi 400.00 0.00 0.00 339.30 400.00 100.00 0.00N 0.00 E 5979790.38 721452.77 0.0(~ 0.00 0.00 0.00 0.00 0.00 0.0 0.00N 0.00 E 2.49 2.49 0.00 0.85 BPHG-PBD 500.00 1.00 313.00 439.29 499.99 100.00 0.60N 0.64W 5979790.96 721452.11 0.87~313.00 0.87 1.00 0.00 1.00 1.0 0.60N 0.64W 2.77 2.77 43.00 1.10 BPHGoPBD 600.00 2.00 313.00 539.26 599.96 I0<).00 2.38N 2.55W 5979792.69 721450.15 3.49~313.00 3.49 1.00 0.00 1.00 2.0 2.38N 2.55W 3.09 3.09 43.00 1.35 BPHG-PBD START OF BUILD ~ 2.00 deg/100 ft 700.00 3.00 313.00 639.16 699.86 100.00 5.36N 5.74W 5979795.56 721446.87 7.85~313.00 7.85 1.00 0.00 1.00 3.0 5.36N 5.74W 3.44 3.43 43.00 1.60 BPHG-PBD 800.00 5.00 313.00 738.91 799.61 100.00 10. liN 10.84W 5979800.17 721441.63 14.83~313.00 14.83 2.00 0.00 2.00 5.0 10.liN 10.84W 3.81 3.79 43.00 1.87 BPHG-PBD 900.00 7.00 313.00~..~-838.36 899.06 I00.00 17.24N 18.4V~r 5979807.07 721433.78 25.28~313.00 25.28 2.00 0.00 2.00 7.0 17.24N 18.4W~ 4.20 4.15 43.00 2.14 BPHG-PBD START OF BUILD (~ 2.50~g/100 ft 1000.00 9.00 313.00~"937.38 998.08 100.00 26.73N 28.67W 5979816.25 721423.33 39.2(~313.00 39.19 2.00 0.00 2.00 9.0 26.73N 28.6TN 4.62 4.52 43.00 2.43 BPHG-PBD 1100.00 11.50 313.00,.-I,035.78 1096.48--t-400.00 38.87N 41.68W 5979828.00721409.96 56.99~313.00 56.99 2.50 0.00 2.50 11.5 38.87N 41.68W 5.06 4.88 43.00 2.74 BPHG-PBD 1200.00 14.00 313.00~2nH33.3.1?~.l194.011'~T'liD0.00 53.92N 57.82W 5979842.56 721393.39 79.06~_,313.00 79.05 2.50 0.00 2.50 14.0 53.92N 57.82W 5.54 5.23 43.00 3.07 BPHG-PBD 1300.00 16.50 313.1~ 6'~229.78~,1290.48,,,-~00.00 71.85N 77.05W 5979859.93 721373.63 105.36~313.00 105.35 2.50 0.00 2.50 16.5 71.85N 77.05W 6.06 5.57 43.00 3.43 BPHG-PBD 1400.00 19.00 313<9~ ~'~325.01 1385.71! 1~30.00 92.64N 99.35W 5979880.05 721350.73 135.84~313.00 135.83 2.50 0.00 2.50 19.0 92.64N 99.35W 6.62 5.90 43.00 3.81 BPHG-PBD 1500.00 21.50 313.~ ~418.8~,~21479.52,.,_J,130.00 116.25N 124.6e'W 5979902.89 721324.74 170.45~313.00 170.44 2.50 0.00 2.50 21.5 I16.25N 124.6tSW 7.23 6.21 43.00 4.22 BPHG-PBD 1600.00 24.00 313~0 cc1511.03 1571.73~._..00 142.62N 152.94W 5979928.42 721295.69 209.12~313.00 209.10 2.50 0.00 2.50 24.0 142.62N 152.94W 7.89 6.50 43.00 4.66 BPHG-PBD 1700.00 26.50 313.[J~ ~0601.4~1662.17'",4,00.00 171.71N 184.14W 5979956.57 721263.65 251.77~313.00 251.75 2.50 0.00 2.50 26.5 171.71N 184.14W 8.62 6.78 43.00 5.11 BPHG-PBD END OF BUILD ~ o~ 1760.00 28.00 313.00 ~654.81 1715.51~50.00 190.44N 204.23W 5979974.70 721243.02 279.24~313.00 279.22 2.50 0.00 2.50 28.0 190.44N 204.23W 9.08 6.93 43.00 5.40 BPHG-PBD Base Permafrost ~ Halliburton Energy Services - Drilling Systems PSL Date: 5/15/96 Proposal Report Wcllpath ID: NK-28 Wp7 Measured Incl Drift Subsca TVD Course T O T A L GRID Coordinates Closure Vertical Build Walk DLS Cum. Expected Total Max Hor Min Hor Dir. Vcrt Survey Tool Depth Dir. Depth Length Rectangular Offsets Northing Easting Dist. Dir. Section Rate Rate Dogleg Rectangular Coords Error Error Max Err Error (fi) (deg.) (deg.) (fi) (It) (R) (ft) (fl) (fi) (ft) (fi) (deg.) (fi) (dg/100fi) (dg/100R) (dg/100ft) (deg) (R) (f0 (fl) (fi) (deg.) (It) 1867.81 28.00 313.00 1750.00 1810.70 107.81 224.96N 241.24W 5980008.11 721205.00 329.86~313.00 329.83 0.00 0.00 0.00 28.0 224.96N 24124W 9.93 7.35 43.00 5.73 BPHG-PBD START OF CURVE (~ 2.50 deg/100 R 1960.00 28.00 313.00 1831.40 1892.10 92.19 254.48N 272.9CW 5980036.68 721172.49 373.14~313.00 373.11 0.00 0.00 0.00 28.0 254.48N 272.9~3k' 10.67 7.71 43.00 6.01 BPHG-PBD 2060.00 30.50 313.09 1918.64 1979.34 100.00 287.83N 308.6CW 5980068.96 721135.82 422.00(~313.01 421.97 2.50 0.09 2.50 30.5 287.83N 308.6gW 11.54 7.93 43.03 6.53 BPHG-PBD 2160.00 33.00 313.17 2003.67 2064.37 100.00 323.80N 347.0CW 5980103.78 721096.38 474.61@313.02 474.58 2.50 0.08 2.50 33.0 323.80N 347.0gW 12.48 8.12 43.07 7.07 BPHG-PBD 2200.00 34.00 313.20 2037.03 2097.73 40.00 338.91N 363.1CW 5980118.41 721079.84 496.69~313.03 496.66 2.50 0.07 2.50 34.0 338.91N 363.1C~V 12.87 8.19 43.08 7.30 BPHG-PBD 2260.00 35.50 313.24 2086.33 2147.03 60.00 362.33N 388.02W 5980141.08 721054.24 530.89~313.04 530.85 2.50 0.07 2.50 35.5 361.67N 388.64W 13.35 8.13 43.10 7.52 BPHM-PBD 2360.00 38.00 313.30 2166.45 2227.15 I00.00 403.33N 431.55W 5980180.78 721009.49 590.71@313.06 590.68 2.50 0.06 2.50 38.0 401.45N 433.315W 14.56 8.06 43.14 7.90 BPHM-PBD 2460.00 40.50 313.35 2243.88 2304.58 100.00 446.74N 477.61W 5980222.81 720962.20 653,98(~313.09 653.94 2.50 0.05 2.50 40.5 443.49N 480.6'/W 16.27 8.01 43.19 8.29 BPHM-PBD 2560.00 43.00 313.40 2318.48 2379.18 100.00 492.46N 526.01W 5980267.08 720912.48 720.56~313.11 720.52 2.50 0.05 2.50 43.0 487.72N 530.48W 18.44 7.99 43.23 8.71 BPHM-PBD 2660.00 45.50 313.44 2390.11 2450.81 100.00 540.42N 576.68W 5980313.53 720860.42 790.33(~313.14 790.29 2.50 0.04 2.50 45.5 534.04N 582.71W 21.01 8.00 43.27 9.14 BPHM-PBD 2760.00 48.00 313.48 2458.62 2519.32 100.00 590.52N 629.54W 5980362.04 720806.10 863.15~313.17 863.12 2.50 0.04 2.50 48.0 582.36N 637.2CCW 23.95 8.05 43.31 9.61 BPHM-PBD 2860.00 50.50 313.52 2523.90 2584.60 100.00 642.66N 684.4~V 5980412.54 720749.65 938.9(~313.19 938.86 2.50 0.04 2.50 50.5 632.59N 694.02W 27.21 8.13 43.35 10.09 BPI-IM-PBD 2960.00 53.00 313.55 2585.81 2646.51 100.00 696.75N 741.41W 5980464.93 720691.16 1017.42~313.22 1017.39 2.50 0.03 2.50 53.0 684.63N 752.88W 30.75 8.24 43.38 10.61 BPHM-PBD 3060.00 55.50 313.59 2644.23 2704.93 100.00 752.68N 800.2CW 5980519.10 720630.75 1098.57~313.25 1098.54 2.50 0.03 2.50 55.5 738.39N 813.7533/ 34.56 8.37 43.41 11.16 BPHM-PBD 3160.00 58.00 313,62 2699.06 2759.76 100.00 810.35N 860.7e'W 5980574.96 720568.53 1182.19(~313.27 1182.15 2.50 0.03 2.50 58.0 793.75N 876.5CW 38.61 8.53 43.43 11.75 BPHM-PBD 3260.00 60.50 313,65 2750.19 2810.89 100.00 869,65N 922.95W 5980632.40 720504.62 1268.1~(~1313.30 1268.09 2.50 0.03 2.50 60.5 850.63N 941.0{3?v' 42.,8..,7 8.69 43.46 12.36 BPHM-PBD 3360.00 63.00 313.67 2797.52 2858.22 I00.00 930.46N 986.69W 5980691.30 720439.14 1356.2(](~313.32 1356.17 2.50 0.03 2.50 63.0 908.90N 1007.14W 47.33 8.87 43.48 13.01 BPHM-PBD 3460.00 65,50 313,70 2840.97 2901.67 100.00 992.66N 1051.7{;W 5980751.57 720372.22 1446.25~313.34 1446.23 2.50 0.03 2.50 65.5 968.46N I074,7$W 51.98 9.06 43.50 13.70 BPHM-PBD 3560.00 68.00 313,73 2880.44 2941.14 100.00 1056.15N 1118.2CW 5980813.07 720303.98 1538.12~313.37 1538.10 2.50 0.03 2.50 68.0 1029.21N 1143.82W 56.80 9.25 43.52 14.41 BPHM-PBD END OF CURVE 3588.30 68.70 313.73 2890.88 2951.58 28.30 1074.34N 1137.21W 5980830.69 720284.45 1564.43~1313.37 1564.40 2.50 0.02 2.50 68.7 1046.61N 1163,58W 58.18 9.30 43.53 14.62 BPHM-PBD CASING POINT OD - 13 3/8 in, ID - 12,41 in, Weight - 68.00 lb/fi. 7468.26 68.70 313.73 4300.00 4360.70 3879.95 3573.44N 3749.27W 5983252.28 717600.58 5179.43~313.62 5179.43 0.00 0.00 0.00 68.7 3438.30N 3878.42W 251.81 23.56 43.69 46.74 BPHM-PBD 8468.00 68.70 313.73 4663.09 4723.79 999.74 4217.38N 4422.32W 5983876.41 716909.17 6110.91@313.64 6110.91 0.00 0.00 0.00 68.7 4054.56N 4577.95W 301.99 27.33 43.70 55.65 BPHM-PBD UG4A (K-15) 10194.19 68.70 313.73 5290.00 5350.70 1726.19 5329.23N 5584.43W 5984954.18 715715.49 7719.23~313.66 7719.23 0.00 0.00 0.00 68.7 5118.62N 5785.78¥ 388.67 33.85 43.70 71.16 BPHM-PBD W. Sak 16774.97 68,70 313,73 7680,00 7740,70 6580,78 9567.96N 10014.75W 5989064.67 711166.34 13850.67~313,69 13850.67 0.00 0.00 0.00 68.7 9175.15N 10390.425~V 719.30 58.83 43.72 130.75 BPHM-PBD CASING POINT OD ~, 9 5~ln, ID - 8.68 in, Weight ,, 47.00 lb/fi. 19000.00 68.70 313.73 ::~88.08 8548.78 2225.03 l1001.12N 11512.6~3h' 5990455.08 709628.77 15923.78~313.70 15923.78 0.00 0.00 0.00 68.7 10546.71N 11947.3gn~r 831.11 67.29 43.72 150.97 BPHM-PBD TI IR.Z 19762.48 68.70 313.73 ~F/65.00 8825.70 762.48 11492.24N 12026.01W 5990931.62 709101.94 16634.20~313.70 16634.20 0.00 0.00 0.00 68.7 11016.72N 12480.81W 869.43 70.19 43.72 157.90 BPI-tM-PBD Target (5/7/96) / Kuparuk 20271.87 68.70 313,73 ~50. ~00-~9010,70,~9,39 11820.34N 12368.94W 5991250,00 708750,00 17108,8f1~313,70 17108.80 0,00 0,00 0.00 68,7 11330,72N 12837,24W 895,02 72,13 4332 1(~2.53 I~I'IIM-I'BD Miluveach 3> ~ --~ 20946.47 68.70 313.'/~ ~195.00 9255.70~- 674.60 12254.86N 12823.0qW 5991671.67 708283.93 17737.34~313.70 17737.34 0.00 0.00 0.00 68.7 11746.55N 13309.2c~Y' 928.92 74.70 43.72 168.66 Bi'IIM-PBD ¢'ASI'NG I'OINT OD - ~,Ci~ ,- 6,2'"~'t~. Welg~'t~l./,,00 Ih/fl, 21.10,1.41 e, ll.70 313.7-.-.-.~ ~i~325,00F,~385.70,..~7.94 12485.41N 13064.07W S991895.41 708036.65 18070.84~313.70 18070.84 0.00 0.00 0.00 68.7 12485.41N 13064.07W 0.00 0.00 0.00 0.00 BPHM-PBD 21304.42 68.70 313.~ i~325.00 9385.70 ~,~0.01 12485.42N 13064.07W 5991895.42 708036.64 18070.85(~313.70 18070.85 0.00 0.00 0.00 68.7 11967.20N 13559.72W 946.91 76.06 43.72 171.92 BPHM-PBD WELLPLAN FEASIBILITY STUDY This plan is for feasibility purposes only it has not yet been certifledl 13000 lEtO0 11000 100(~ go00 8030 7000 6000 50]0 40C0 30C]0 EK]OO lOCK) 0 ICCO s~-o -;20 t~4D 1D Depth(FO Tod C~ITICAL P[]INT DATA MD Inc Azi. TIE IN 0 0.00 313.00 KEP / START 400 0.00 313.00 OF BUILD ~ 1.00/lgO F± ST,aRT I]:' BUILD 700 3.00 313.00 ~ 2.00/100 F~ ST/N;~T EF BUILD lOCK] g. CD 313,00 B ~,50/1CD Ft END ~ BUILD 176g] L-~,CK)313,00 Pe~moF~ost §TA~T ElF lg60 h:~iO0 313.00 2.~3/1C0 Wc 2L:~3034.00 313.L:~3 END ElF CLIWE~ 68.?0 313,73 7468 F:~.?O 313,73 8468 64i70 313,73 UG4A (1<-15) lOlg4 68,70 3~3.73 W. SoN 16775 68.70 313.73 lgO00 68,70 313.73 TI-[RZ 1 g76368.70 313.73 To~,ge~ (5/7/96) La3P.7~ 68.70 313.73 K,4:)o~ ~ L::~3~Ta 68.70 313.73 I,/iluveoch L::~Dc)46 68.70 313.73 TVD N,/S E/W 0 ON OE 4DO ON OE 700 5N 6V 998 ~7N L~gV l/lG I':YO N 804 V 1811 8L----------------°5 N ~41 V 18g~ E54 N ~73 V E:K)98339 N 363 W ~ 1074 N 1137 W 4361 3573N 3749V 47e4 4217N 44e8V 5351 53c~N 5~4 W 7741 ~ Nl~15 V ~g 11~1 N11513V ~6 114~ NI~ V PRO%F~D TVD 9'38'5.70 MD ~ 1304.45 VS 18070.90 N/S 1~4~.45 N E/W 13064.10 %/ Halliburton Travelling Cylinder Report Computed using WIN-CADDS REV2.2.1 Normal Plane Method All distances are between EXPECTED Positions Page I Date: 5/15/96 Time: 2:36 pm REFERENCE WELL: BPX - Shared Services Drilling Alaska State Plane: ZoneA WELLPLAN FEASIBILITY STUDY PBU: Niakuk This plan is for feasibility purposes only NK-2$ Estimated it has not yet been certified! NK-28 Wp7 N/S aad E/W are measured from the WELLHEAD ~ TVD is measured from the WELLHEAD Interval Step Depth 50.00 ft.(MD) From 1900.00 To 21304.42 ft.(MD) All Directions using BP Highside Method in Dee. Deg. All Depths and Distance are in FEET All distances are between EXPECTED Positions Offset Flowing Zone Well Safety Min. Clear Spread MD NK-19 Gyro 582.6 606.4 1900 NK-21 Gyro 691.9 715.7 1900 NK-42 Gyro 1086.8 1110.5 1900 NK-38 Fina 534.1 557.9 1900 NK-26 MWD 1181.8 1205.5 1900 NK-23 Gyro 1182.7 1206.4 1900 NK-22 Gyro 1041.1 1064.9 1900 NK-20 Gyro 873.5 897.2 1900 NK-18 Gyro 715.7 739.5 1900 NK-12a Gyr 365.8 389.6 1900 NK-12 MWD 366.0 389.7 1900 N-K-10 GDAT 1 I0.1 133.8 1900 NK-09 Fina 329.7 353.4 1900 NK-08 GDAT 27.7 55.3 2350 NK-07 G+MW -5.1 18.7 1900 NK-06 6273.5 6322.5 5600 NK-05 5965.0 6015.9 6350 NK-04 6043.0 6094.9 6750 NK-03 10547.8 10626.0 17250 NK-02a 1023.1 1085.2 10850 NK-02 1022.8 1084.9 10850 NK-01a 889.8 951.0 10450 NK-01 890.2 951.3 10450 SAGD-05 1114.0 1163.2 5700 NK-16 RigM 492.7 516.4 1900 NK-27 Fina 240.6 264.3 1900 NK-14 G-MW 375.5 399.2 1900 Close Approach Status Flowing Shut-in Enter Enter Exit Exit Close Safety Safety Shut-in Danger Danger Shut-in Approach TVD Dist Dist Zone Zone Zone Zone Status 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 2219 33.5 5.9 OK 1839 28.5 4.7 1900 2050 SHUT-IN 3682 63.0 14.0 OK 3955 66.7 15.9 OK 4100 68.7 16.9 OK 7913 121.2 43.1 OK 5589 89.2 27.1 OK 5589 89.2 27.1 OK 5444 87.2 26.1 OK 5444 87.2 26.1 OK 3719 63.5 14.3 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK 1839 28.5 4.7 OK RECEIVED t',/,AY P. 2 't996 Alaska Oil & e,,~.~s co,s. Co,remission Anctl,,xago BPX- Sha~ed S~ ices D~i/ling A~cske Stere Pt~ne: Zone4 PBU ', Niakuk NK-P8 Es~imeted N~-~8 ~p7 T~av~llng C~n~ - ~l ~ane ReC~ence ~ - ~-~ Wp7 ND 1~ - B1~4 Pt. Interval, ~ Lines ~Pe t~ EXACTED ~stence OPcles ~Pe t~ ~.P. FL~I~/S~T-IN WELLPLAN FEASIBILITY STUDY This plan is for feasibility purposes onJy it has not yet bean certifiedl 33O 340 0 3~0 10 5/15196 2.36 270 26O 240 23O 2~0 160 CL[]S~ST POINTS Slot II s~.once EIP ec~dc~ ReP MDRef ~-~ ~-~1~ ~1~ 1~ 1~.~ 1~.12 ~-~ / ~1 1~7.61 I~ t~.~ 1~.12 45.~ ~-~ ~-~lt 1~.~ ~.5t 1~.~ 1~.1~ ~.~ ~-1~As-~I~ 414.13 81.01 1~.~ 1~.1~ ~-t~~-~l~ 415.gt 79.~ 1~.~ 1~.1~ 19.40 ~-10~-~l~ 1~.~ ~.73 1~.~ 1~.1~ 7.~ ~-~ hs-~l~ 377.16 I~.~ 1~.~ I~.1~ 19.~ ~-~ hs-~lt 43.37 I~ 1~.~ 1~.I2 ~-~ 6513.M ~.~ ~.~ ~.lg %.~ ~ ~-~ ~47.74 4.551 ~.~ ~.57 ~ ~-~% ~4.10 ~.lg ~.~ 4~1.6g ~7.~ ~ ~-~l~ t 1~.17 4&13 171~.~ 787~ 14,~ ~ ~-~1~ 1~,~ 851 1~.~ ~.~ ~40 ~1 ~-~l~ 1421,~ ~.~ 1~ ~45 ~ l~.~ I~ ~.~ ~1~5i ~40 ~-16 ~-~t~ ~.~ 1~ i~.~ 1~.1~ 4~,~ onil £2 '96 10:15~M BP GPM~ DEPT 907 5644680 . . P.2/2 BP EXPLORATION BP Exploration (Alaska) Ine, 900 ECs1 Ben,on Boulevard P.O, Box 198612 Anchorage. Alaska 99519-6612 (g07) 561-5111 May 21, 1996 David Johnston, Commissioner Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-3192 Letter o.f..~qn-Objection for West Niakuk #2 Well O,MMOMM , ,! ~CblVlM" RES ENG SR ENG NRO SR GEOL GEOL ASST ,STAT TECH 'STAT TECH_ __ J IFILE Dear Commissioner Johnston: BP Exploration (Alaska), inc. ("BPX") as an affected owner per 20 AAC 25.050 (h) has no objections to drilling the proposed well West Niakuk #2, Pursuant to 20 ACC 25,050(d)(2) this letter of non-objection is provided so you may issue the drilling permit without a 15-day notice period. Sincerely, A. N. Bolea, Manager Greater Pt. Mclntyre Asset RECEIVED MAY 2 2 1995 Alaska 0il & Gas Cons. Commissl_~n Anchorage 10: ISRM BP GPM~_~EPT 90'7 56446S0 I:;APLOPIATION .... BP Exploration (Alaska) Inc. 900 East Benson Boulevard PO Box 196612 Anchorage, Alaska 99519-6612 P. 1/2 Facsimile Greater Pt. Mclntyre Area TO: Name: Company: Location Fax# FROM: Name: NOTES; Extension: PAGES TO FOLLOW: (Does Not Include Cover Sheet) SECURITY CLASSIFICATION PRIVATE SECRET E~ CONFIOENTIAL ~ Facsimile #: (907) 564-4680 Confirm #: (907) 564-4683 Notice of Public Hearing STATE OF ALASKA Alaska Oil end Gas Conservation Commission Re: The application of ARCO ALASKA, Inc. for exception to 20 AAC 25.055 to allow drilling the West Niakuk No. 2 delineation oil well. ARCO Alaska, Inc. by letter dated May 16, 1996 has requested an exception to the provisions of 20 AAC 25.055(a)(3) to allow the directional drilling of the West Niakuk No. 2 delineation oil well to a producing location that is closer than 500 feet from a quarter section line. The proposed surface location is 1258' from the south line (FSL) and 1112' from the east line (FEL) of Section 36, T12N, R15E, Umiat Meridian (UM) and the proposed producing location is-2519' FSL and 2909' FEL of Section 22, T12N, R15E UM. A person who may be harmed if the requested order is issued may file a written protest prior to 4:00 PM June 3, 1996 with the Alaska Oil and Gas Conservation Commission, 3001 Porcupine Drive, Anchorage, Alaska 99501, and request a hearing on the matter. If the protest is timely filed and raises a substantial and material issue crucial to the Commission's determination, a hearing on the matter will be held at the above address at 9:00 am on June 18, 1996 in conformance with 20 AAC 25.540. If a hearing is to be held, interested parties may confirm this by calling the Commission's office, (907) 279-1433 after June 3, 1996. If no protest is filed, the Commission will consider the issuance of the order without a hearing. If you are a person with a disability who may need a special modification in order to comri1'~'-o~he public hearing, please contact Diana Fle~3 no~tt~r ~::~an'~June~13, 1996 David~.-~ohns~n, Commis~ Alaska Oil ~s Conservation Commission Published April 18, 1996 A0-02614046 Dt NOT WRITE IN THIS SPACE! STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION Diverter Systems Inspection Report Date: 3/31/96 Operation: Development X Exploratory: Ddg Contractor: Pool Rig No. 7 PTD # 96-0093 Rig Ph. # Operator: Arco Alaska Oper. Rep.: TOM ANGLEN Well Name: NIAKUK 28 Rig Rep.: RICKY Location: Sec. 36 T. 12N R. 15E Merdian Umiat 659-4815 MISC. INSPECTIONS: ACCUMULATOR SYSTEM: Location Gen.: P Well Sign: P Systems Pressure: 3000 psig Housekeeping: P (Gen.) Ddg. Rig: P Pressure After Closure: 1650 psig Reserve Pit: N/A Flare Pit: N/A 200 psi Attained After Closure: 0 min. 34 sec. Systems Pressure Attained: 2 min. 25 sec. Nitrogen Bottles: Six Bottles DIVERTER SYSTEM INSPECTION: Diverter Size: 20 Divert Valve(s) Full Opening: P Valve(s) Auto & Simultaneous: P !Vent Line(s) Size: 16 [Vent Line(s) Length: 168 ~Line(s) Bifurcated: N/A Line(s) Down Wind: P Line(s) Anchored: P Tums Targeted / Long Radius: N/A in. 2000 psi average , psig MUD SYSTEM INSPECTION: Light Alarm in. Trip Tank: P P ff. Mud Pits: P P Flow Monitor: P P GAS DETECTORS: Light Methane NOTE Hydrogen Sulfide: Alarm North i!i!!i!i!! ...................... ~ ~ ............ -- Non Compliance Items 0 Repair Items Withir N/A Day (s) And contact the Inspector @ 659-3607 Remarks: The gas detection equipment is checked every 7 days on this dg and logged in a log book which I checked. Distribution odg. - Well File c- Oper/Rep c- Database c - Tdp Rpt File c- Inspector AOGCC REP.: OPERATOR REP.: EZ1 IFEDD.XLS BOBBY D. FOSTER TOM ANGLEN DVTRINSP.XLT (REV. 1/94) 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. ALASKA COMPUTING CENTER * ....... SCHLUMBERGER RECEIVED COMPANY NAME : ARCO ALASKA, INC. WELL NAME '. NK- 28 FIELD NAME '. NIAKUK BOROUGH : NORTH SLOPE STATE : ALASKA API NUMBER : 50-029-22678-00 REFERENCE NO : 96275 * ALASKA COMPUTING CENTER * . ............................ * ....... SCHLUMBERGER ....... . ............................ * COMPANY NAME : ARCO ALASKA, INC. WELL NAME : NK- 28 FIELD NAME : NIAKUK BOROUGH · NORTH SLOPE STATE : ALASKA API NUMBER : 50-029-22678-00 REFERENCE NO : 96275 LIS Tape Ve~ - fication Listing Schlumberger Alaska Computing Center 10-0CT-1996 1~.~4 PAGE: **** REEL HEADER **** SERVICE NA~E : EDIT DATE : 96/10/10 ORIGIN : FLIC REEL NAME : 96275 CONTINUATION # : PREVIOUS REEL : CO~ : ARCO ALASKA INC., NIAKUK NK-28, API #50-029-22678-00 **** TAPE tAEADER **** SERVICE NAME : EDIT DATE : 96/10/10 ORIGIN · FLIC TAPE NAFZE : 96275 CONTINUATION # : 1 PREVIOUS TAPE : CO~E4FJCT : ARCO ALASKA INC., NIAKUK NK-28, API #50-029-22678-00 TAPE HEADER NIAKUK MWD LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB DATA JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL : FEL: FWL: ELEVATION (FT FROM MSL O) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING RECORD 1ST STRING 2ND STRING NK-28 500292267800 ARCO ALASKA, INC. SCHLUMBERGER WELL SERVICES 10-0CT-96 BIT RUN 1 ......... 96275 PERRY T. JOHNSON BIT RUN 2 BIT RUN 3 .................. 36 12N 1SE 1258 1112 60.05 60.05 19.50 OPEN HOLE CASING DRILLERS BIT SIZE (IN) SIZE (IN) DEPTH (FT) 8.500 9.625 17105.0 LIS Tape Verification Listing Schlumberger Alaska Computing Center 10-0CT-1996 1~.~4 3RD STRING PRODUCTION STRING Well drilled 14-JUL through 20-JUL-96 with CDR and ADN. All data was collected in a single bit run. $ $ PAGE: **** FILE HEADER **** FILE NA~E : EDIT .001 SERVICE : FLIC VERSION : O01CO1 DATE : 96/10/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUM~ER: 1 EDITED MERGEDMWD Depth shifted and clipped curves; all bit runs merged. DEPTH INCREMENT: 0.5000 FILE SO?4MARY LDWG TOOL CODE .............. $ BASELINE CURVE FOR SHIFTS: GR CURVE SHIFT DATA (MEASURED DEPTH) START DEPTH STOP DEPTH 16867.0 21398.0 BASELINE DEPTH .............. 88888.0 21237.5 21227.5 21217.0 21198.5 21178.5 21163.5 21156.0 21147 0 21125 0 21112 5 21094 5 21075 0 21061 0 21045 5 21039 5 21025 0 21003 0 20993.5 .......... EQUIVALENT UNSHIFTEDDEPTH .......... 88880 0 21229 5 21221 0 21210 0 21191 5 21171 5 21158 5 21150 5 21142 0 21120 0 21109 0 21088 5 21069 5 21054.5 21040.5 21035.0 21016.5 20997.0 20986.5 LIS Tape Vez=fication Listing Schlumberger Alaska Computing Center 20935.0 20907.5 20896.0 20881.0 20851.5 20792.5 20753.0 20738.5 20715.0 20698.5 20685.5 20660.5 20629.0 20607.0 20576.0 20552.5 20529.5 20489.0 20430.0 20424.0 20401.0 20394.0 20388.5 20377.0 20372.5 20357.0 20342.0 20304.0 20298.5 20289.5 20278.5 20276.5 20259.5 20256.5 20252.0 20247.0 20226.5 20196.5 20178.5 20172.5 20157.0 20148.0 20135.0 20123.5 20089.0 20082.5 20079.5 20066.5 20058.0 20031.0 20023.0 20006.5 19995.5 19965.5 19950.0 20928.0 20899.5 20889.0 20874.0 20844.0 20783.5 20744.0 20729.5 20707.0 20690.0 20678.0 20652.0 20620.5 20598.0 20569.5 20544.5 20522.0 20482.5 20421.5 20416.0 20393.0 20384.0 20376.5 20369.5 20363.5 20346.0 20332.5 20294.5 20289.0 20279.5 20270.5 20267.5 20252.0 20248.5 20244.0 20239.0 20218.5 20189.0 20167.5 20162.5 20148.0 20139.5 20128 5 20117 5 20083 0 20078 5 20075 0 20062 5 20054 5 20026.0 20017.0 20002.5 19989.0 19959.5 19945.5 10-0CT-1996 1~.~4 PAGE: LIS Tape Vez~fication Listing Schlumberger Alaska Computing Center 19887.5 19876.0 19870.0 19817.0 19811.5 19800.5 19790.5 19731.0 19721.5 19718.0 19691.0 19663.0 19653.0 19636.0 19629.0 19619.5 19615.5 19611.0 19604.0 19589.5 19524.5 19494.5 19476.0 19408.5 19295.0 19285.0 19254.5 19242.0 19201.5 19167.5 19152.5 19135.0 19118.0 19070.0 18973.5 18907.0 18875.0 18868.0 18764.0 18741.0 18715.0 18691.0 18651.5 18609.5 18604.0 18602.5 18592.0 18572.5 18558.0 18541.0 18517.5 18463.5 18449.5 18427.5 18392.0 19881.0 19869.5 19862.0 19811.5 19806.0 19799.0 19787.0 19725.0 19715.5 19711.5 19684.5 19654.5 19644.5 19627.5 19620.0 19608.0 19604.0 19598.0 19590.5 19576.5 19510.5 19477.5 19458.5 19392.5 19276.5 19267.0 19236.5 19225.0 19185.0 19149.5 19134.5 19116.5 19099.5 19054.5 18957.0 18884.5 18853.0 18847.0 18741.5 18720.5 18692.5 18667.0 18626.0 18583.0 18578.0 18576.5 18566.0 18544 5 18530 5 18514 5 18490 5 18435 0 18421 0 18401 0 18365 5 10-0CT-1996 1~.~4 PAGE: LIS Tape Vermfication Listing Schlumberger Alaska Computing Center 10-0CT-i996 1~.~4 PAGE: 18383.0 18356.5 18336.0 18311.5 18272.0 18249.0 18246.5 18223.0 18172.0 18149.5 18146.5 18125.0 18115.5 18093.0 18099.0 18079.0 18057.0 18038.0 18024.5 18006.5 17975.0 17959.0 17968.0 17951.5 17965.5 17947.0 17934.0 17913.5 17929.0 17909.5 17892.5 17872.0 17866.0 17845.0 17847.0 17830.0 17818.5 17800.5 17777.5 17755.5 17762.5 17741.0 17736.5 17713.5 17668.5 17645.0 17659.0 17635.5 17644.0 17618.5 17565.5 17540.5 100.0 75.0 $ MERGED DATA SOURCE LDWG TOOL CODE $ REMARKS: BIT RUN NO. MERGE TOP MERGE BASE The depth adjustments shown above reflect the MWD GR to the MAC GR logged by Atlas. Ail other MWD curves were carried with the GR. This file also contains the Very Enhanced QRO resisitivity with 2' average that was reprocessed at GeoQuest. $ LIS FORMAT DATA ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 52 LIS Tape Verification Listing Schlumberger Alaska Computing Center 10-0CT-1996 1~.~4 PAGE: TYPE REPR CODE VALUE 4 66 1 5 66 6 73 7 65 8 68 O. 5 9 65 FT 11 66 19 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 0 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NUMB NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUMB SAMP ELEM CODE (HEX) DEPT FT 645003 O0 000 O0 0 1 1 1 4 68 RA MWD 0H~645003 O0 000 O0 0 1 1 1 4 68 RP MWD 0B74~$645003 O0 000 O0 0 1 1 1 4 68 VRA MWD OH~ 645003 O0 000 O0 0 1 1 1 4 68 VRP MWD OH~ 645003 O0 000 O0 0 1 1 1 4 68 ROP MWD FPHR 645003 O0 000 O0 0 1 1 1 4 68 GR I~D GAPI 645003 O0 000 O0 0 1 1 1 4 68 RHOBI4WD G/C3 645003 O0 000 O0 0 1 1 1 4 68 DRHOMWD G/C3 645003 O0 000 O0 0 1 1 1 4 68 PEF MWD BN/E 645003 O0 000 O0 0 1 1 1 4 68 CALNMWD IN 645003 O0 000 O0 0 1 1 1 4 68 NPHIMWD PU-S 645003 O0 000 O0 0 1 1 1 4 68 GR DAS GAPI 645003 O0 000 O0 0 1 1 1 4 68 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 ** DATA ** DEPT. 21397.500 R~.MWD -999.250 RP.MWD -999.250 VRA.MWD VRP.I4WD -999.250 ROP.MWD 47.869 GR.MWD -999.250 RHOB.MWD DRHO.MWD -999.250 PEF.MWD -999.250 CALN. MWD -999.250 NPHI.MWD GR.DAS -999.250 DEPT. 20000.000 RA.MWD 6.224 RP.MWD 11.720 VRA.MWD VRP.MWD 737.419 ROP.MWD 63.114 GR.MWD 80.142 RHOB.I4WD DRHO.MWD -0.005 PEF.MWD 4.062 CALN. MWD 9.269 NPHI.MWD GR.DAS 86.061 DEPT. 18000.000 RA.MWD 3.345 RP.MWD 3.674 VRA.MWD VRP.MWD 3.765 ROP.MWD 72.295 GR.MWD 63.521 RHOB.MWD DRHO.MWD 0.069 PEF.MWD 3.988 CALN. MWD 9.335 NPHI.MWD GR.DAS 67.694 -999.250 -999.250 -999.250 736. 699 2. 732 33.400 3.339 2.587 29.900 LIS Tape Ve~ .fication Listing Schlumberger Alaska Computing Center 10-0CT-1996 1~.~4 PAGE: DEPT. 16890.000 RA.MWD -999.250 RP.MWD -999.250 VRP.MWD -999.250 ROP.MWD -999.250 GR.MWD -999.250 DRHO.I4WD -999.250 PEF.MWD -999.250 CALN. MWD 7.868 GR.DAS -999.250 VRA.MWD RHOB . MWD NPHI.MWD -999.250 -999.250 48.500 ** END OF DATA ** **** FILE TRAILER **** FILE NA~E : EDIT .001 SERVICE : FLIC VERSION · O01CO1 DATE · 96/10/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** FILE HEADER **** FILE NA~E : EDIT .002 SERVICE : FLIC VERSION : O01CO1 DATE : 96/10/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : FILE HEADER FILE NUMBER 2 RAW MWD Curves and log header data for each bit run in separate files. BIT RUN NUbI~ER: 1 DEPTH INC~: 0.5000 FILE SOW3~y~RY VENDOR TOOL CODE START DEPTH ........................... MWD 16890.0 $ LOG HEADER DATA DATE LOGGED: SOFTWARE: SURFACE SOFTWARE VERSION: DOWNHOLE SOFTWARE VERSION: DATA TYPE (MEMORY or REAL-TIME) TD DRILLER (FT) : TOP LOG INTERVAL (FT): BOTTOM LOG INTERVAL (FT) : STOP DEPTH 21406.0 20-JUL-96 FAST 4.0 4.0C MEMORY 21406.0 16891.0 21406.0 LIS Tape Verification Listing Schlumberger Alaska Computing Center 10-0CT-1996 11:04 PAGE: BIT ROTATING SPEED (RPM) : HOLE INCLINATION (DEG) MINIMUM ANGLE: MAXIMUM ANGLE: 8O 57.9 71.2 TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE ......................... CDR RESIST./GR ADN NEUT./DENS. $ TOOL NUMBER ........... RGS751 ADN045 BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE (IN): DRILLERS CASING DEPTH (FT) : 8.500 17105.0 BOREHOLE CONDITIONS MUD TYPE: MUD DENSITY (LB/G): MUD VISCOSITY (S) : MUD PH: MUD CHLORIDES (PPM) : 20000 FLUID LOSS (C3): RESISTIVITY (OHNM) AT TEMPERATURE (DEGF) : MUD AT MEASURED TEMPERATURE (MT)'. O. 000 MUD AT MAX CIRCULATIONG TEMPERATURE : MUD FILTRATE AT (MT): O. 000 MUD CAKE AT (MT): O. 000 OIL BASED 10.20 80.0 NEUTRON TOOL MATRIX: SANDSTONE MATRIX DENSITY: 2.65 HOLE CORRECTION (IN) : TOOL STANDOFF (IN): 1.0 EWR FREQUENCY (HZ): 20000 REM_ARKS: ************ RUN1 ************* DRILLED INTERVAL 17125' - 21406' HOLE ANGLE AT TD = 57.86 DEG @ 21406' RES TO BIT: 67.04'; GR TO BIT: 78.04' NEUT TO BIT: 124.88'; DENS TO BIT: 121.67' TD WELL @ 13:56 19-JUL-96 THIS HOLE SECTION DRILLED WITH OIL BASED MUD NO MUD RESISTIVITIES DUE TO OIL BASED MUD $ LIS FORMAT DATA 0.0 0.0 0.0 LIS Tape Verification Listing Schlumberger Alaska Computing Center 10-0CT-1996 11:04 PAGE: ** DATA FORMAT SPECIFICATION RECORD ** ** SET TYPE - 64EB ** TYPE REPR CODE VALUE 1 66 0 2 66 0 3 73 92 4 66 1 5 66 6 73 7 65 8 68 0.5 9 65 FT 11 66 11 12 68 13 66 0 14 65 FT 15 66 68 16 66 1 0 66 1 ** SET TYPE - CHAN ** NAME SERV UNIT SERVICE API API API API FILE NUMB NUMB SIZE REPR PROCESS ID ORDER # LOG TYPE CLASS MOD NUMB SAMP ELEM CODE (HEX) DEPT FT 645003 O0 000 O0 0 2 1 ! 4 68 0000000000 ATR LW1 OH~ 645003 O0 000 O0 0 2 1 1 4 68 0000000000 PSR LW1 OH~ 645003 O0 000 O0 0 2 1 1 4 68 0000000000 ROPE LW1 F/HR 645003 O0 000 O0 0 2 1 1 4 68 0000000000 GR LW1 GAPI 645003 O0 000 O0 0 2 1 1 4 68 0000000000 ROMB LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 ROBB LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 ROBU LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 ROBL LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 ROBR LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 DRHB LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 DRHU LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 DRHL LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 DRHRLW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 PEB LW1 BN/E 645003 O0 000 O0 0 2 1 1 4 68 0000000000 PEU LW1 BN/E 645003 O0 000 O0 0 2 1 1 4 68 0000000000 PEL LW1 BN/E 645003 O0 000 O0 0 2 1 1 4 68 0000000000 PER LW1 BN/E 645003 O0 000 O0 0 2 1 1 4 68 0000000000 CALNLW1 PU 645003 O0 000 O0 0 2 1 1 4 68 0000000000 TNPH LW1 PU 645003 O0 000 O0 0 2 1 1 4 68 0000000000 DPHB LW1 G/C3 645003 O0 000 O0 0 2 1 1 4 68 0000000000 DCALLW1 IN 645003 O0 000 O0 0 2 1 1 4 68 0000000000 HI)IA LW1 IN 645003 O0 000 O0 0 2 1 1 4 68 0000000000 LIS Tape Verification Listing Schlumberger Alaska Computing Center 10-0CT-1996 11:04 PAGE: 10 ** DATA ** DEPT. 21405.500 A TR . LW1 GR. LW1 -999. 250 ROMB. LW1 ROBL. LW1 -999. 250 ROBR. LW1 DRHL. LW1 -999.250 DRHR. LW1 PEL . LW1 - 999.250 PER. LW1 DPHB. LW1 -999. 250 DCAL. LW1 DEPT. 20000. 000 ATR. LW1 GR. LW1 83. 890 ROMB. LW1 ROBL.LW1 2. 424 ROBR.LW1 DRHL . LW1 O . 036 DRHR . LW1 PEL . LW1 4.324 PER. LW1 DPHB. LW1 O. 265 DCAL. LW1 DEPT. 18000. 000 ATR. LW1 GR. LW1 65. 050 ROYi~. LW1 ROBL.LW1 2. 461 ROBR.LW1 DRHL . LW1 O . 091 DRHR . LW1 PEL . LW1 5.506 PER. LW1 DPHB . LW1 O . 469 DCAL . LW1 -999.250 PSR.LW1 -999.250 ROBB.LW1 -999.250 DRHB.LW1 -999.250 PEB.LW1 -999.250 CALN. LW1 -999.250 HDIA.LW1 7.209 PSR. LW1 2. 454 ROBB. LW1 2. 445 DRHB.LW1 O . 040 PEB . LWl 4. 144 CALN. LW1 9.118 HDIA. LW1 3 134 2 391 2 449 0 074 5 197 8 935 PSR . LW1 ROBB. LW1 DRHB. LW1 PEB. LW1 CALN. LW1 HDIA. LW1 DEPT. 16890. 500 ATR. LW1 -999. 250 PSR. LW1 GR.LW1 -999.250 ROMB.LW1 -999.250 ROBB.LW1 ROBL. LW1 -999. 250 ROBR. LW1 -999. 250 DRHB. LW1 DRHL. LW1 -999. 250 DRHR. LW1 -999. 250 PEB. LW1 PEL. LW1 -999. 250 PER. LW1 -999. 250 CALN. LW1 DPHB. LW1 -999. 250 DCAL. LW1 -999. 250 HDIA. LW1 -999 -999 -999 -999 -999 -999 250 ROPE. LW1 250 ROBU. LW1 250 DRHU. LW1 250 PEU. LW1 250 TNPH. LW1 25O 8 2 -0 3 43 112 029 ROPE. LW1 433 ROBU. LW1 0 O1 DRHU. LW1 485 PEU. LW1 200 TNPH. LW1 000 3 . 429 ROPE. LW1 2. 435 ROBU. LW1 O. 044 DRHU. LW1 4. 876 PEU. LW1 34.100 TNPH.LW1 O. 000 -999. 250 ROPE. LW1 -999. 250 ROBU. LW1 - 999. 250 DRHU. LW1 - 999. 250 PEU. LW1 -999. 250 TNPH. LW1 -999.250 47.869 -999.250 -999.250 -999.250 -999.250 77.133 2.408 0.071 5.904 13.200 56.315 2.446 0.134 6.270 13.000 -999.250 -999.250 -999.250 -999.250 -999.250 ** END OF DATA ** **** FILE TRAILER **** FILE NAFiE : EDIT .002 SERVICE : FLIC VERSION · O01CO1 DATE : 96/10/10 MAX REC SIZE : 1024 FILE TYPE : LO LAST FILE : **** TAPE TRAILER **** SERVICE NAME : EDIT DATE : 96/10/10 ORIGIN : FLIC TAPE NAME : 96275 CONTINUATION # : 1 PREVIOUS TAPE : COI~--2VT : ARCO ALASKA INC., NIAKUK NK-28, API #50-029-22678-00 LIS Tape Verification Listing Schlumberger Alaska Computing Center 10-0CT-1996 11:~4 PAGE: 11 **** REEL TRAILER **** SERVICE NAME : EDIT DATE : 96/10/10 ORIGIN : FLIC REEL NAME : 96275 CONTINUATION # : PREVIOUS REEL : CO~VT : ARCO ALASKA INC., NIAKUK NK-28, API #50-029-22678-00 ~ape Subfile 2.is type: TAPE HEADER NIAKUK UNIT CASED HOLE WIRELINE LOGS WELL NAME: API NUMBER: OPERATOR: LOGGING COMPANY: TAPE CREATION DATE: JOB NUMBER: LOGGING ENGINEER: OPERATOR WITNESS: SURFACE LOCATION SECTION: TOWNSHIP: RANGE: FNL: FSL: FEL: FWL: ELEVATION(FT FROM MSL 0) KELLY BUSHING: DERRICK FLOOR: GROUND LEVEL: WELL CASING-RECORD NK - 28 500292267800 ARCO ALASKA, INC. WESTERN.ATLAS LOGGING SERVICES 05-AUG-96 6752.00 J. DAHL L. PEAK 36 12N 15E 1258 1112 60.10 60.10 19.55 OPEN HOLE CASING DRILLERS CASING BIT SIZE (IN) SIZE (IN) DEPTH (FT) WEIGHT (LB/FT) 1ST STRING 2ND STRING 3RD STRING 9.625 17105.0 47.00 pRODUCTION STRING 7.000 21405.0 29.00 CURVE SHIFT DATA - ALL PASSES TO STANDARD (MEASURED DEPTH) BASELINE CURVE FOR SHIFTS PBU TOOL CODE: PBU CURVE CODE: RUN NI3MBER: PASS NUMBER: DATE LOGGED: LOGGING COMPANY: BASELINE DEPTH MAC GRCH 1 1 26-JUL-96 WESTERN ATLAS LOGGING SERVICES EQUIVALENT UNSHIFTED DEPTH MAC/GR. WELL LOGGED IN CASED HOLE. DATA THROUGH CASING SUBJECT TO CEMENTATION. DATA WAS PROCESSED USING Nth ROOT CORRELATION TO THE 4th POWER. DATA WAS PROCESSED BY: G. HOREL, ANCHORAGE GEOSCIENCE CENTER. REPEAT DATA WAS NOT PROCESSED SO IS NOT PRESENTED HERE. $ REMARKS: LOG TIED TO WIRELINE MARKS. THIS IS THE DEPTH REFERENCE FOR THIS WELL. FILE HEADER FILE NUMBER: 1 EDITED CURVES Depth shifted and clipped curves for each pass in separate PASS NUMBER: 1 DEPTH INCREMENT: FILE SUMMARY PBU TOOL CODE GRCH MAC $ CURVE SHIFT DATA - .5000 START DEPTH STOP DEPTH 17480.0 21255.0 17498.0 21281.0 PASS TO PASS BASELINE CURVE FOR SHIFTS PBU CURVE CODE GRCH PASS NUMBER: 1 BASELINE DEPTH DT 17592.0 17676.0 18161.5 18285.5 18326.5 18454.0 18480.0 18490.5 18565.5 18579.0 18697.5 18734.5 18759.5 18857.5 18857.5 18926.5 19246.0 19346.5 19604.5 19605.0 19613.5 19614.0 19628.0 19627.5 19634.5 19634.0 19655.0 19655.0 19668.0 19667.5 19699.5 19700.0 19700.0 19703.0 19706.5 19706.5 19718.0 19718.0 19723.0 19744.5 19758.5 19759.0 19763.0 19763.5 19767.5 19768.0 19769.0 19802.0 19802.0 19810.0 19911.0 19911.0 19956.0 19956.0 19996.5 files. (MEASURED DEPTH) EQUIVALENT UNSHIFTED DEPTH DTSH 17591.5 17676.0 18161.5 18286.0 18326.0 18453.5 18479.5 18491.0 18565.5 18579.5 18697.0 18734.5 18759.5 18857.5 18926.0 19246.0 19346.0 19605.0 19614.0 19627.5 19634.0 19655.0 19667.5 19699.0 19702.5 19718.0 19722.5 19744.5 19759.0 19763.5 19767.5 19802.0 19809.5 19911.0 19956.0 19996.5 · ,~dO~IS H,I,HON : MflM~fIM : 8E - MN : J,flO ' EHD,I,~8 ~ / ,ZflO ' IHD,I,~6 & / N~OD ND 'i~ HLIM QZL~IHS Z~ZM SNZL ~ 'SS~d S'~9EIE 0'8~EIE 0'6~EIE 0'IEETE 0'IEEIE ~'90EIE 0'L6IIE 0'L6IIE 0'9~IIE 0'9~IIE ~'6IIIE ~'6IIIE 0'690IE 0'690IE s'gIOIE s'gIOIE 0'S860~ 0'S860~ 0'I860~ ~'8L60~ 0'~60~ 0'~60~ 0'6680E 0'6680E 0'~£0E 0'~£0~ 0'0690~ 0'0690~ 0"9£~05 0'S£SOE 5'06~0~ ~'06~OE 0'9£~0E 0'9£~0E S'SI~O~ S'SI~O~ S'88£0~ S'88£0~ 0'~9£0~ S'SI£O~ S'SI£O~ S'88~0~ S'88~O~ S'69~0~ S'69~0~ S'~OE S'E~O~ O'TIEO~ O'II~OE S'~6IOE 0'E8T0~ 5'0910~ S'OSTOE S'E£I0~ O'O~TOE 0'9IIOE 0'9IIOE S'80IOE S'EOTOE S'I600E S'I600E 0'S900~ S'£900~ 0'9~00~ 0'9~00E 0'9000E 0'£000E O'O000Z qOOOE : SM%KfMZ~ 0 'L9~I~ 0 ' 6~EI~ S'I~I~ 0 ' 80~T~ 0'86II~ 0'£5II~ 0'05IIE 0'690IE ~'LIOIE S'S860E 0'I860[ 0'0860[ S'~S60[ 0'6680~ S'~LO[ 0'0690[ S'9CSO[ 0'9£S0~ S' 06~0[ 0'9£~0[ 0'9T~O~ S'88£0[ 0'S9£0[ S'9T£0[ 0'68[0[ S'OL[O~ 0'~[0[ S'[T[O[ S'S6IO[ S'[STO[ S'T9TO~ O'TSTO[ S'[CTO~ O'I[TO[ O'£IIO[ S'OTTO~ O'~OTO[ S'~600[ 0'S900[ 0'~900~ 0'9~00~ S'SO00[ 0'£000[ S'O000~ FORMAT RECORD (TYPE# 64_ ONE DEPTH PER FRAME Tape depth ID: F 5 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GRCH MAC 68 1 GAPI 2 DT MAC 68 1 US/F_ 3 DTSH MAC 68 1 US/F 4 TEND MAC 68 1 LB 5 TENS MAC 68 1 LB 4 4 62 310 01 1 4 4 62 995 99 1 4 4 62 995 99 1 4 4 62 995 99 1 4 4 62 995 99 1 2O * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 183 Tape File Start Depth = 21320.000000 Tape File End Depth = 17480.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet **** FILE TRAILER **** LIS representation code decoding summary: Rep Code: 68 46087 datums Tape Subfile: 2 361 records... Minimum record length: 62 bytes Maximum record length: 1014 bytes Tape Subfile 3 is type: LIS FILE HEADER FILE NUMBER: 2 RAW CURVES Curves and log header data for each pass in separate files; raw background pass in last file. PASS NUMBER: 1 DEPTH INCREMENT: .5000 FILE SUMMARY VENDOR TOOL CODE START DEPTH GR 17480.0 MAC 17498.0 $ LOG HEADER DATA STOP DEPTH 21295.0 21317.5 DATE LOGGED: SOFTWARE VERSION: TIME LOGGER ON BOTTOM: TD DRILLER (FT) : TD LOGGER (FT) : TOP LOG INTERVAL (FT) : BOTTOM LOG INTERVAL (FT) : LOGGING SPEED (FPHR) : DEPTH CONTROL USED (YES/NO): TOOL STRING (TOP TO BOTTOM) VENDOR TOOL CODE TOOL TYPE SWIV SWIVEL SUB ROLR ROLLER SUB CCL CASING COLLAR LOC. COMR COMMON REMOTE GR GAMMA RAY ROLR ROLLER SUB KNJT KNUCKLE JOINT KNJT KNUCKLE JOINT ACC ACOUSTILOG COMMON MAC MAC CENT 6-ARM CENTROLLER MAC MAC CENT 6-ARM CENTROLLER $ BOREHOLE AND CASING DATA OPEN HOLE BIT SIZE(IN): DRILLER'S CASING DEPTH (FT) : LOGGER'S CASING DEPTH (FT) : BOREHOLE CONDITIONS FLUID TYPE: FLUID DENSITY (LB/G): SURFACE TEMPERATURE (DEGF): BOTTOM HOLE TEMPERATURE (DEGF) : FLUID SALINITY (PPM) : FLUID LEVEL (FT): FLUID RATE AT WELLHEAD (BPM) : WATER CUTS (PCT) : GAS/OIL RATIO: 26-JUL-96 ECLIPSE 2.2 236 26-JUL-96 21320.0 21306.0 17500.0 21281.0 1500.0 YES TOOL NUMBER 3944XA 3927NA 2317NA 3510XA 1329XA 3927NA 3923XA 3923XA 1667EA 1668MA 4341XA 1668PA/BA/FA 4341XA .000 21405.0 .0 BRINE 8.90 .0 .0 0 .0 .000 .000 .000 CHOKE (DEG) : NEUTRON TOOL TOOL TYPE (EPITHERMAL OR THERMAL): MATRIX: MATRIX DENSITY: HOLE CORRECTION (IN): .00 BLUELINE COUNT RATE NORMALIZATION IN OIL ZONE TOP NORMALIZING WINDOW (FT) : BASE NORMALIZING WINDOW (FT) : .000 BLUELINE COUNT RATE SCALES SET BY FIELD ENGINEER FAR COUNT RATE LOW SCALE (CPS): 0 FAR COUNT RATE HIGH SCALE (CPS): 0 NEAR COUNT RATE LOW SCALE (CPS) : 0 NEAR COUNT RATE HIGH SCALE (CPS) : 0 .0 TOOL STANDOFF (IN): REMARKS: MAIN PASS. $ : ARCO ALASKA, INC. : NK - 28 : NIAKUK : NORTH SLOPE : ALASKA CN WN FN COUN STAT .0 .0 * FORMAT RECORD (TYPE# 64) ONE DEPTH PER FRAME Tape depth ID: F 6 Curves: Name Tool Code Samples Units API API API API Log Crv Crv Size Length Typ Typ Cls Mod 1 GR MAC 68 1 GAPI 4 2 DTC MAC 68 1 US/F 4 3 DTS MAC 68 1 US/F 4 4 SCRA MAC 68 1 4 5 CHT MAC 68 1 LB 4 6 TTEN MAC 68 1 LB 4 4 62 310 01 1 4 62 995 99 1 4 62 995 99 1 4 62 995 99 1 4 62 635 99 1 4 62 635 99 1 24 * DATA RECORD (TYPE# 0) 1014 BYTES * Total Data Records: 214 Tape File Start Depth = 21320.000000 Tape File End Depth = 17480.000000 Tape File Level Spacing = 0.500000 Tape File Depth Units = Feet s~Xq ~IOI :q~BusI p~oos~ mnmTxeM ss~Xq E9 :q~Bu~I p~oos~ mnmIuIM · -'sp~oo~ 86~ E :~II~qns smn~p 89L£fi 89 :opoo :X~mmns 5uTpo~op ~po~ uoT~u~so~d~ SI~ · spuooos ¢6'I = ~mTq UoTqnaox~ p~sd~Ia s~Xq ~£I :q~BU~T p~o~ mnmTX~ s~qXq ~£I :qqBu~I p~os~ mnmTuTH IO IO
