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Home My WebLink About184-200CAUTION: This email originated from outside the State of Alaska mail system. Do not click links or open attachments unless you recognize the sender and know the content is safe. From:Joseph Lastufka To:Guhl, Meredith D (OGC) Subject:RE: [EXTERNAL] Formation Tops: PBU NIA 04 (184-200) and PBU NIA 05 (185-027) Date:Tuesday, January 11, 2022 11:01:56 AM Meredith, Please let me know if you have any questions or need additional information. Thanks! NK-04 (500292121700) (PTD #184-200) Top HRZ MD=8922 TVD=8921 Top Kingak MD = 9118 TVD =9117 Top Sag River MD = 9536 TVD= 9535 Top Kavik MD=9953 TVD = 9950 Top Lisburne MD = 10037 TVD = 10035 NK-05 (500292129000) (PTD #185-027) Top HRZ MD= 9804 TVD= 9053 Top Kuparuk MD = 10015 TVD = 9251 Top Kingak MD = 10142 TVD = 9369 Top Sag River MD = 10627 TVD= 9816 Top Kavik MD= 11181 TVD = 10331 Top Lisburne MD = 11300 TVD = 10444 Thanks, Joe Lastufka Sr. Drilling Technologist Hilcorp North Slope, LLC Office: (907)777-8400, Cell:(907)227-8496 From: Guhl, Meredith D (OGC) <meredith.guhl@alaska.gov> Sent: Tuesday, January 11, 2022 8:17 AM To: Joseph Lastufka <Joseph.Lastufka@hilcorp.com> Subject: [EXTERNAL] Formation Tops: PBU NIA 04 (184-200) and PBU NIA 05 (185-027) Good Morning Joe, I’m still working on entering formation tops for 10-407s submitted before the AOGCC began using the RBDMS database. I’ve come across two wells PBU NIA 04 (184-200) and PBU NIA 05 (185-027) where on the abandonment 407, in box 29, it says “Geologic data submitted previously” but on the completion 407, there are no formations listed. If possible, could Hilcorp NS please provide formation tops for the two listed wells? Thanks, Meredith Meredith Guhl (she/her) Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission 333 W. 7th Ave, Anchorage, AK 99501 meredith.guhl@alaska.gov Direct: (907) 793-1235 CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, contains information from the Alaska Oil and Gas Conservation Commission (AOGCC), State of Alaska and is for the sole use of the intended recipient(s). It may contain confidential and/or privileged information. The unauthorized review, use or disclosure of such information may violate state or federal law. If you are an unintended recipient of this e-mail, please delete it, without first saving or forwarding it, and, so that the AOGCC is aware of the mistake in sending it to you, contact Meredith Guhl at 907-793-1235 or meredith.guhl@alaska.gov. The information contained in this email message is confidential and may be legally privileged and is intended only for the use of the individual or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any dissemination, distribution, or copy of this email is strictly prohibited. If you have received this email in error, pleaseimmediately notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. While all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening, or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by the company in this regard and the recipient should carry out such virus and other checks as it considers appropriate. • [JP 'v. BP Exploration (Alaska) Inc. Attn: Well Integrity Coordinator, PRB-20 Post Office Box 196612 Anchorage, Alaska 99519-6612 r 901, 41.440 - July 6, 2011 0 0 Mr. Tom Maunder cZNLY Alaska Oil and Gas Conservation Commission k■ 0 4 333 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 1780280 500292015601 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 1852760 500292148600 P&A 4/15/98 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 500292242500 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 500292269300 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 600292274500 1.8 NA 1.8 NA 18.7 5/4/2011 NK -16 1940220 500292244700 2.5 NA 2.5 NA 20.4 5/4/2011 NK -17 1961650 500292270900 3 NA 3 NA 20.4 5/4/2011 NK -18 1931770 500292242100 2 NA 2 NA 17.0 5/6/2011 NK -19A 2010700 500292260701 1.8 NA 1.8 NA 15.3 5/6/2011 NK -20A 2050400 500292242901 2.1 NA 2.1 NA 13.8 5/9/2011 NK -21 1940880 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 13.8 4/30/2011 NK -28 1960930 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 5/8/2011 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-61A 2080350 500292289301 14 NA 14 NA 110.5 5/15/2011 NK-82A 2030470 500292285201 1.3 NA 1.3 NA 13.8 5/4/2011 NK -65A 2050830 500292286901 1 NA 1 NA 8.5 5/6/2011 I MEMORANDUM TO: THRU: FROM: David Jo~:~n,'~ Chairman Blair Wondzell, ~ P. I. Supervisor Lou Grimaldi, ~ Petroleum Inspector State of Alaska Alaska Oil and Gas Conservation Commission DATE: August 25, 1996 FILE NO: IZ9JHYDD.DOC SUBJECT'!:;.:i' ,; 85-0027-0 (#5) 85-0276-0 (#6) Sunday, August 25, 1996: I made a location clearence inspection on BPX wells Niakuk #4, 5, & 6 in the Niakuk Field. These wells were drilled from one of the Niakuk exploratory islands used to deliniate the field. There were three wells abandoned last year on this island. We flew from Deadhorse by helicopter and landed on the island. I made a walk-around and found the island to be free of trash or debris. There was a slight depression in the island where the wells were abandoned earlier this year. This island will be allowed to erode naturally and should be visited occasionally to check on its progress. SUMMARY: I made a location clearence inspection on BPX wells Niakuk #4, 5, & 6 in the Niakuk Field. I found no problems with this location Attachments: Photographs cc: BPX (Anchorage) NON-CONFIDENTIAL TONY KNOWLE$, GOVERNOI=t ALASI~& OIL AND GAS CONSERVATION COMMISSION August 15, 1996 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-31S2 PHONE: (907) 279-1433 FAX: (907) 276-7542 Land Department (MB 12-1) Pete Zseleczky Mgr. BP Exploration (Alaska) inc. PO Box 196612 Anchorage, Alaska 99519-6612 Re: Location Clearance, Niakuk Island Wells No. 4, 5, & 6. Dear Mr. Zseleczky: On July 19,1996 our inspector, Doug Amos, accompanied your representative Rory Mayra and DNR's Leon Lynch to Niakuk island where they conducted a final location clearance inspection. Mr. Amos concluded that subject wells meet the requirements for Location Clearance. Well Name PTD N. Niakuk ¢f.4 84-200 Niakuk #5 85-027 Niakuk #6 85-276 Final Location Clearance is hereby approved for Niakuk wells no. 4, 5, &6. The Commission will require no additional work on subject wells; however, BP Exploration (Alaska) Inc. remains liable if problems with the wells occur in the future. David W..~.hnstot~ Chairman CC: Blair Wondzell Rory Mayra Leon Lynch Icbp3ni MEMORANDUM State of Alaska Alaska Oil and (;;as Conse~ation Commi~ion TO: THRU: David Johnst? ,~ Chairman--'~ {~ DATg: Blair Wondzell, ~ FILE NO: P. l. Supervisor FROM: Doug Amos. tDo.,-~ $13BJ'ECT: Petroleum Inspector July 19, 1996 i99hgsdd.doc Confidential: Yes Attachment Only Location Clearance BPX Niakuk Island Prudhoe Bay Field Exploratory Friday, July 19, ,1996:1 accompanied BPX rep. Rory Mayra and DNR rap. Leon Lynch to Niakuk Island (Wells 4,5,8) to conducted the final location clearance inspection. i found the location clean, well. casings cut afl below grade, cellars backfilled and concrete wind and wave protection bamers removed. According to Leon and Rory, DNR has approved letting the sea reclaim this island. For this reason future inspections by the AOGCC will not be required. DNR will be monitoring the extent of reclamation in the future. I recommend that Niakuk Island (Wells 4,5,!i) be granted final location clearance status. SUMMARY:_ ! conducted the final location clearance inspection at BPX Niakuk Island. CC: Rory Mayra, BPX Leon Lynch, DNR Niakuk 4,5 & 6, Well Files REC£1VED AUG 1 ~. 1996 Alaska Oil & {las Cons. Gomm~ssmn Anchorage PLUGGING & LOCATION CLEARANCE REPORT State of Alaska ALASKA 0IL & GAS CONSERVATION COM~ISSION . Me.mcrand',:.m To Pile: Abnd Date Note casing size, wt, depth, ~t vol, & procedure. Sfc C~: ~ O Perf intervals - tops: Review the well file, and' comment on plugging, well head Well hea~ cut off: .' ~arke~ 'post or p~2te: ~~ ~ ~_ ~ STATE OF ALASKA ALASt~~' OIL AND GAS CONSERVATIONC(~" 'alSSION ' WE.LL COMPLE,"; OR RECOMPLE.TION hEPORT AND LOG 1. Status of Well Classification of Service Well OIL [] GAS [] SUSPENDED [] ABANOONED [~ SERVICE [] 2. Name of Operator SO]~.O A.L~S~ ]:)E'J~OL~L~ ~~ - 7. Permi[ Number (~P ~~o~ (~)ZNC.) ~-200 3, Address ~ 0 ~Z [96612 8. APl Number ~~, ~ 99519-6612 ............ 50~29~21217 4. toe, don ol ~ell a~ ~urf~c, 3524' NSL, 1~' ~, SEC. . ' T.12N., R. ~E., ~ ~ ~ ~ ~L ~630 A~TODP~OdUC~n9 ~a;~va~ 352~' NSL, 1~' ~, SEC. 25 T.12N., R. ~E., ~~,~ (42-25-12-~) A~ lo~a~ Oe~n 3625' NSL, 130' ~, SEC. 25, T.12N., R.~E., .~f~ ~ ~. ~e~d ~nd ~oo~ ~~ON , 5. Elevation in leet {indicate KB. DF, etc.) ~ 6. Lease Oesigna[ion and Serial No. ~ ~ ~ = 37.9' ~ = ~3'J ~ 3~630 , 12.' Date Spudded 13. Date T.D'. Reached 14. Date Comp., Susp. or Aband. 15. Water Depth, if o~fshore ~G. No. oi Completions 3~. ~ 1985 ~S. i~ I985 ~D. A~L'I~ 1996 3' [eetMSL ~0~ ~ .... , ,, , 17. Total Depth (MD++VD) 18.Plug Back Depth (MD~D: 19. Directional Survey 20. Depth where SSSV set ~ 2~. Thickness og Permagrost I0~300~ ~ + ~ 50~ O~G, ~ YES ~ NO ~ NO~ feetMD~ 1600~ 22. Type Electric or Other Logs Run ~ S~ ~OUS~ S~~D " 23. CASING, LINER ANO CEMENTING RECORD , .... SETTING DEPTHMD CASING SIZE'WT. PER FT. GRADE TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED 30,,' '157.5 ~ S~A~ i20 36" ~60 ,, 20" 133 [-55 SO~A~ 1703 26" ~.655 ,, ,, ~..' I3-3/8" 72 %-80 S~A~, , 5028 "~7-I/2" [530 ~. ~. "G" + 330, Q~ ~,~'~,"~* 15,' .. 9-5/8" h7 ~-80,, S~A~ i0296 12-[/h" 5~ ~. ~. "G" +130 ~ ~. ~'~."~ 15' . , , , 24. Perforations open to Production (MD+TVD of Top and Bottom and 25. TUBING RECORD .... interval, size and number) SIZE DEPTH SET (MD) PACKER SET {MD) ', ~o~ NONE 26. ACID, FRACTURE, cEMENT'SQUEEZE, ETC. ,, , DEPTH INTERVAL (MD) AMOUNT& KINDOF MATERIAL USED ,,, , , EZSV e 2210 .... ~ PLUG 2210' -~1'60' (21 ~.' ~.) S~A~ PLUG: ~0 "' ,,, , ,, 27. PRODUCTION TEST Da~e First Production ~ Method of Operation (Flowing. gas Ii;t, etc.) J , '~,~.ofT.,~" 'Ho~;,T,,~'e~ "~O~UCT~O~ ~OR O,L.~,L' ~AS-MCF 'W2T~R.,aL CHOX~ s~Z~'IsAs-O,L,AT,0 TEST PERIOD ~ I .... , Fl'ow Tubing Casing Pressure CALCULATED OI'L'-BBL GAS-MCF WATER.BBL OIL GRAVITY-APl (cord Press. ,24-HOUR RATE ~ '"~'. ' co~ DATA , , ,, ,,, Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas.or water. Submit core chips. ~ 1: 9217' - 9227' (8.7~'/10') CO~ 5:5:9768'. - 9828' (50'/60') CO~ 2: 9600' - 9660' (5~.~'/60') CO~ 6::. 9828' - 98~0' (~.5'/12'). CO~ 3: 9660' - 9708~ (h6'/~8') CO~ 7= 9~0' - 9900' (60'/60.~) ~ ~: 9708' - 9768' (58.7'/60') CO~ 8: 9900'-- 9960' (60'/60f) ORIGINAL , . Form 10-407 Rev. 7-]-80 CONTINUED ON REVERSE SIDE RECEIVED Submit in duplica,e MAY 0 6 1996 ,, '. Alaska 011 &'Gas Cons. C0mmissi0a Anchorage .:;' 'NAME '.-' . . , ';.~ .. Include intergal ~ested, pressure data, all Hulds recover~ and gravity, MEAS. DEPTH TRUE VERT. DEPTI4 GOR, and time ol each phase. , =, , . ~O~C ~OO~. -, .... 31. LIST OF ATTACHMENTS S~ O~ O~C~S, I / ~ I~ · ~ ' ' ~,~-~ ~ ~/- . ~ I1~ , .... 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 rnultiple stage cement- lng and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod PumP~, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Form 10-407 SUMMARY OF OPERATIONS PERMANENT ABANDONMENT SOHIO ALASKA PETROLEUM COMPANY (BP EXPLORATION ALASKA INC.) NIAKUK NO. 4 The Niakuk No. 4 well was spudded on January 15, 1985, drilled to 10,300' MD/TVD, suspended on February 17, 1985, and abandoned on April 14, 1996. The well was suspended without drilling out or perforating the 9-5/8" long string. Suspension was accomplished by setting an EZ-drill bridge plug at 2210' MD with a 50' cement plug laid on top. Drilling mud above this plug was displaced with diesel to the surface for freeze protection, ga'ctic pack, chased with cement was set in both the 20"X 13-3/8" and 13-3/8" X 9-5/8" annuli during drilling operations. The permanent abandonmem work reported below consisted of: 1) displacing the diesel in the wellbore with kill weight brine; 2) setting surface cement plugs in the wellbore and casing tumuli; 3) removal of wellhead and cellar; 4) severing all casing strings 4' below original mudline; and 5) backfilling, regrading and general location cleanup including backhauling of solid mad liquid wastes. Diagrams are attached showing the post abandonment condition of the well and artificial gravel island on which it is located. (See Figures land 2.) Niakuk No. 4 was permanently abandoned as part of a Project which abandoned all wells on Niakuk Island (Niakuk Nos. 4, 5 and 6) as well as the island itself. Separate AOGCC reports have been prepared for each well in the program. OPERATIONS SUMMARY Constructed ice road to Niakuk Island from East Dock. Mobilized equipment, materials mad personnel to island from previous job (Northwest Milne No. 1). Steam thawed ice amd gravel.in well cellar mad cleaned cellar of gravel backfill using super sucker. , Installed wellhouse mad applied heat to wellhead. Checked pressm'es on wellbore mad casing annuli. (See Figure 3.) , Nippled up and tested BOPE. Displaced diesel freeze protection in wellbore with kill weight brine, taking returns to vacuum tank. 4. Set 170' (BGL) permafrost surface plug in 9-'5/8" casing. (See Figure 4.) . Rigged down wellhead shelter and hot air heater. Excavated to 15' below pad level, removed cellar. (See Figure 5.) Hot tapped 20" and 13-3/8" casings to flush Arctic Pack out of annuli with brine before cutting casing strings. Cut casing strings and removed wellhead. (See Figures 6,7 and 8.) Niakuk No. 4-Summary of Operations April 1996 RECEIVED MA'( 0 6 1996 Alaska 0il & Gas Cons. Commission Anchorage Figure 1 Wellbore Schematic BPX (Sohio Alaska Petroleum Company) Niakuk No. 4 (42-25-12-15) Post Abandonment Condition Casing cut off 15' below island surface (>4' below original mudline) LEGEND ARCTIC PACK CEMENT 10.;5 ppg Brine Mud 11.4 ppg STRAIGHT HOLE SPUD DATE: JAN. 15, 1985 DATE SUSP: FEB. 17, 1985 DATE ABANDONED: APRIL 14, 1996 All depths are original RKB which is 37.9' above GL. GL elevation is +5" MSL NO SCALE Steel Plate over 20", 13 3//8" and 9 5/8" Casing ~::~.}.'~-~ Mm,mum 150' Perma rost Cement Plugs ..~'., :L~,' ,,-/. . ,, . ,, ,, ~_~('~ ,n 9 5~8 Casing, 20 X 1~ 3/8 and ;'~'~ 30" ~ 120' RKB :7' "~-~ [st lOC ~3 3/fl" x 2G' Annulus ~ .... ,.I:': 1,~ RKB · ~ i ~ V ~ ' ~ ' :.,..},,,.... D Collar ~ 1,591 RKB m 9 5/8 Casing ', '..~: ': DV Collar ~ 1,657' RKB in 1~ ~/8" Casing :.::~ 2¢ e ~.7o;' RKS ';.~'~ :' Drill ~ 2,210' RKB with 50' ~:¢:~ Cement Plug on Top. TOC ~ 2,160' RKB ,.~¢.. ~13 3/8" ~ 5,028' RKB TOC in 12 1/(' x 9 5/8" Annulus @ m 5,258' RKB PBTD 10,254 RKB 9 5//8" @ 10,296' RKB TD = 10,500' RKB FAIR/OO7-OS-5/NO4-2B/5//1/96 1:1 SR Figure 2 Post Abandonment Condition Sohio Alaska Petroleum Company [BP Exploration (Alaska)Inc.] Niakuk Island N ~ Isl,~nd surf'~ce ~t time weU. s were drll`l`ed, ~ Flrlglnal' Nlckuk No,s 4, 5 ond 6 wet/bores severed ond copped with stee[ p[otes, Wetl,bores and casing onnul,I (not shown) p[u99ed with 150' cement surP~ce plugs, NOT TO SCALE FAIR/OO7-OS-5/PANM2/5/1/96 1:1 SR III I I ~ I I ' I ii] II ' I' II PERMANENT ABANDONMENT ~ 'IAKI. K NO~ 4 Portable wet ihouse installed on N iaki~k No, 4 and ho[ ail' heater. Figure ,4: Surface plug iii place prior to cutting off wellhead, PERMANENT ABANDONMENT NIAKUK NO. 4 c'uttmg ancl removins 48" drive mpc Niakt~k No, ,[ excavation Figure 6: Cutting 20" casing and relieving compression in casing string. PERMAN~NT ~ BANDONMENT NilAK[ K NO, 4 Figure 7: Casing cutoff'operations. Niat(uk No. 4. Note drain vah, e installed ro recox, er diesel freeze protection. Fi~ n'e ,X Recovenng v,,cllhe~-~d~ PERMANENT ABANDONMENT NIAK-UK NO~ 4 Figure 10: Niakuk No, 4 stiff'ace plugs prior to installatior~ of steel plate, PERMANENT ABANDONMENT NIAKUK NO~ 4 Fig~re 1 l: Steel plate welded over 20'~ 13~3/8 ' arid 9-5'8" casing stubs. Cutoff elevation is >4 ft. below original mtidline, Figure i2: Backfilied excavation with mound of gravel left to accommodate compaction. PERi, ANENT ABANDONMENT NIAK[iK NO~ 4 Figure t3' Plowing snow to access concrete groin on north side of Niaktlt< Island, i:i~t~re 14: North side oFNiakt~k island at~cer concrete ~roin ie~ovat. NIAKUK NO. 4 FIELD PROGRESS REPORTS The attached Field Progress Reports cover P&A operations for all three Niakuk Island wells (Niakuk Nos. 4, 5 and 6) since the work on these wells was carried out simultaneously and as part of a single program. Items specific to Niakuk No. 4 are highlighted. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASIC40 INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 1 Date: 12-Mar-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs' II-Mar-96 to 0600 hrs 12-Mar-96 Receive and check out batch cementing/BOP module. Check out camp and power generating equipment. Inventory spill response kit. Met with Jeff Kilfoyle of Tool Services to discuss waste fluid disposal procedures. , . Picked up 2 radios and a beeper from ARCO communications. Radios to be used for communication with ARCO security. ., , Plan to meet with Carol Klein of BPV Environmental today to discuss waste fluid mmfifesting m~d disposal. Also plan to meet with Scott Grieve or Mike Dinger regarding same. ,, ., Activity at Report Time: Drilling ice road route for groundfast ice. Fuel Used: 0 Fuel On Hand: 0 Weather ~ 0600 hrs. Temp: -32°F Wind: 4 SW Pressure: 29.76 PreciPitation: 0 Chill Factor: -43 °F On-site Personnel: Visibility: 25 miles Sky: Clear Submitted By' Jesse Mohrbacher Fairweather E&P Services,[~[ C [IV E D MAY 0 6 1995 Alaska 011 & Gas Cons. Commission Anchorage FAIRWEATHER E&P SERVICES, !NC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 2 Date: 13-Mar-96 Job No. 0{)7-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hfs 12-Mar-96 to 0600 hrs 1.3-Mar-96 Traveled to Niakuk Island with baby rolligon to recon ice road route. Encountered Western Geophysical crew working in the vicinity of planned ice road. Discussed ice road construction operations with Tom Ainsworth of Western Geo and Jim Darnell of ARCO. Determined that ice road construction and traffic will interfere with ongoing geophysical operations. Geophysical program will be complete in 7-10 days. Plan to suspend Niakuk operations and move to Northwest Milne No. 1 to perform well abandomnent while waiting for geophysical operations to be completed. Reschedule Niakuk ice road construction to commence on or about March 22, 1996. This will be the last report until Niakuk operations resume. Activity at Report Time: Mobilizing well abandonment equipment to Northwest Milne No. 1 location. Fuel Used: 0 Fuel On Hand: 0 On-site Personnel: Weather ~ 0600 hrs. Temp: -14°F Wind' 5 SW Visibility: 5 miles Pressure' 29.541 Precipitation: Trace Sky' Overcast Chill Factor: -30°F submitted By: Jesse Mohrbacher Fairweather E&P Services, ][nc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASIC4~) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 3 Date: 25-Mar-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hfs 24-Mar-96 to 0600 hrs 25-Mar-96 Resuming Niakuk project work now that seismic crew is out of area. Rolligon to Niakuk Island. Drilled test holes and set route markers back to East Dock. Worked on ramp coming off East Dock. Bladed road 1.7 miles with D-7 Cat from East Dock toward Niakuk Island. Ice road total length will be 4 miles. Staged equipment resources in CATCO yard. CATCO camp still at NW Milne No. 1. Activity at Report Time: Continue work on ice road to Niakuk Island. Fuel Used: 0 Fuel On Hand: 0 On-site Personnel: Weather~ 0600 hrs. Temp: -13°F Wind: SE ~ 5 knots Visibility: 15 miles Pressure: 30.24 Precipitation: None Sky: Clear Chill Factor: -22°F Submitted By: Virgil Thrapp Fairweather E&P ServiceS, Inc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 4 Date: 26-Mar-96 Job No. 007-02-300 A7E No. 731121 Contract No. 96MR048' Report Period: 0600 hfs 25-Mar-96 to 0600 hfs 26-Mar-96 Ice road to Niakuk Island cleared, and commenced clearing of islm~d surface. Working on ice rmnp for trucks onto island surface. Activity at Report Thne: Clearing island surface around wellsites and building access ramp. Fuel Used: 0 Fuel On Hand: 0 On-site Personnel: WeatiSer ~ 0600 hrs. Temp: +28°F Wind: S ~ 10 knots Visibility: 15 miles Pressure: 29.99 Precipitation: None Sky: 4000 overcast Chill Factor: +10°F Submitted By: Virgil Thrapp Fairweath er E&~[~i[e~,VnE D 1996 ~chorag8 FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT , CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 5 Date: 27-Mar-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hfs 26-Mar-96 to 0600 hrs 27-Mar-96 Niakuk Island surface cleared of snow, and access ramp'completed. Road markers installed. Equipment mobilization scheduled for today but delayed by weather. Weather is Catego~j 3. All operations suspended. Activity at Report Time: Prepare to mobilize equipment 'to Niakuk Island. Fuel Used: 0 ' Fuel On Hand: 0 On-site Personnel: 0 Weather ~ 0600 hrs. Temp' +11 °F Wind: SW ~ 26-40 knots Visibility: <1/4 mile Pressure: 30.22. Precipitation: None Sky: Obs. (Blowing snow). Chill Factor: -33 °F Submitted By: Virgil Thrapp Fairweather E&P Services, Inc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT- P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 6 Date: 28-Mar-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 27-Mar-96 to 0600 hrs 28-Mar-96 Phase 3 weather travel restrictions in effect until early afternoon on 27-Mar-96. ARCO cleared snow drifts on East Dock road in late afternoon and early evening hours. No activity on ice road on Niakuk Islm~d last 24 hours due to weather and subsequent road clearing operations. ~,, Activity at Report Time: Demobilizing camp at Northwest Milne No. 1 for transport to Niakuk Island site. Fuel Used: 0 Fuel On Hand' 0 On-site Personnel: Weather ~ 0600 hrs. Temp: +14°F Wind: W ~ 13 knots Visibility: 3-5 miles Pressure: 30.51 Precipitation: None Sky: Overcast Chill Factor: - 12 °F Submitted By: Virgil Thrapp Fairwea'ther E&P Services, Inc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5' AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 7 Date: 29-Mar-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period- 0600 hrs 28-Mar-96 to 0600 hrs 29-Mar-96 Cleared road to Niakuk wellsite. Mob out CATCO camp and equipment to site. DSR reps on site preparing and testing new BOP assembly. Activity at Report Time: Testing new shear ram assembly. Fuel Used: 0 Fuel On Hand: 0 Weather ~ 0600 hrs. Temp: +9°F Wind' E~3 ... Pressure: 30.70 Precipitation: 0 Chill Factor: +5 °F Submitted By: On-site Personnel: Visibility' 1/4 mile-fog Sky: Obscured Virgil Thrapp Fairweather E&P Servic.~ ~ E~V [ D MAY 0 6 1996 Naska Oil & Gas ConsJOommission Anchorage FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 8 Date: 30-Mar-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 29-Mar-96 to 0600 hfs 30-Mar-96 All equipment and persom~el being mobilized to Niakuk Island location. Resuming operations. Thawing frozen gravel in well cellars. Activity at Report Time: Thawing fi'ozen gravel in well cellars. Fuel totals to be Fuel 'Used: reported tomorrow Weather ~ 0600 hrs. Temp: Pressure: 30.88 Chill Factor: -40°F Fuel On ttand: -16°F Wind: Precipitation: E ~ 9 knots None On-site Personnel: Visibility: 10 miles+ Sky: Clear Submitted By: Jesse Mohrbacher Fairweather E&P Services, Inc. FAIRWEATHER E&P SERVICES, INC, FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALAS!CA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 9 Date: 31-Mar-96 Job No. 907-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 30-Mar-96 to 0600 hfs 3I-Mar-96 Completed mobilization of persom:el, mechanics shop, spill response igloo, batch mixing module, BOP's, and miscellaneous equipment tO Niakuk Island. set well house on Niakuk No. 5 and applied heat. Thawed ice and gravel in well cellar to expose 13-3/8" X 9-5/8" annulus valve. Valve is seized up. Left heat on well overnight. Held project safety meeting. John Miller, BPXA safety representative visited site on 30-Mar-96. ,, Activity at Report Time: Installing gauges to check pressure on 9-5/8" casing and attempting to free up axmulus valve. Initial Report Fuel Used: 0 Weather ~. 0600 hrs. Temp: Pressure: 30.64 Chi. ll Factor: -31 °F Fuel On Hand: 1000 On-site Personnel: -14°F Wind: ESE ~ 7. knots Visibility: 20 Miles Precipitation: None Sky: Clear Submitted By' Jesse Mohrbacher Fairweather E&P Ser~E~E.! V E D MAY 0 6 1996 0tl & Gas Cons. commissio~ AnChorage FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 10 Date: 1-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period' 0600 hrs 31-Mar-96 to 0600 hrs 1-Apr-96 Check for pressure on 9-5/8" casing of Niakuk No. 5. Pressure = 0 psi. Work 13,3/8" X 9-5/8" annulus valve free and check for pressure. No pressure on annulus. ND tubing bonnet and master valve on Niakuk No. 5. NU 7-1/16", 5000 psi WP BOP stack consisting of shear and blind rmr~. Test stack to 1500 psi for 10 minutes. Test ok. Check 13-3/8" X 9-5/8" annulus for pressure during BOP test. No pressure in annulus. Bled off 9-5/8'" casing pressure to 0 psi. Steam thawed cellar of Niakuk No. 6 and reco'vered approximately 25 yd3 gravel and mud in super sucker. Deposited gravel and mud in lined containment area at East Dock. Activity at Report Time: Rigging up to circulate diesel out of Niakuk No. 5 with 10.3 ppg brine. Fuel Used: 500 Fuel On Hand: 500 On-site Personnel: 7 . Weather ~ 0600 hrs. Temp: 4°F Wind: W ~ 9 knots Visibility: Pressure: 30.37 Precipitation: Lgt snow Sky: Overcast Chill Factor: -16°F 1.5 miles Submitted By: Jesse Mohrbacher Fairweather E&P Services, Inc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 11 Date: 2-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 1-Apr-96 to 0600 hrs 2-Apr-96 RU to displace diesel in %5/8" casing of Niakuk No. 5. RIH to 150 ft with rubber hose. Pump 30 bbls of 10.3 ppg NaC1/NaBR brine taking diesel returns in vac truck. POH. Diesel (30 bbls) recycled with PBU annular communication engineer, lklH with 1" pipe shoving wad of cement sacks for bridge plug to 170 ft. RU BJ Services to set surface plug. Mix and pump 80 sx Coldset I surface cement plug in 9-5/8" casing. CIP ~ 1410 hours. RD BJ Services. Move wellhouse to Niakuk No. 4 and apply heat. Check for pressure on 9-5/8" casing, 13-3/8" X 9-5/8" annulus, and 20" X 13-3/8" annulus of Niakuk No. 4. No pressure on casing or annuli. Plow snow around island to access concrete groin. Activity at Report Time: ND BOP stack on Niakuk No. 5, and preparing to NU BOP stack on Niakuk No. 4. Preparing to excavate cellar on Niakuk No. 5. Fuel Used: 450 Fuel On Hand: 2050 On-site Personnel: Weather ~ 0600 hrs. Temp: 3 °F Wind: W ~ 5 knots Visibility: 2 Miles Pressure: 30.16 Precipitation: 2" snow Sky: Overcast/Fog Chill Factor: -5 °F Submitted By: Jesse Mohrbacher Fairweather E& ' , BAY 0 6 1996 Nas~ O}t & Gas Cons. C~ · Anchora~ FAIRWEATHER E&P SERVICES, ][NC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 12 Date: 3-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 2-Apr-96 to 0600 hrs 3-Apr-96 ND BOP stack on Niakuk No. 5 and NU same on Niakuk No. 4. Test stack 1500 psi for 10 minutes. Test ok. RIH with rubber hose to 150 ft. Circulated 130 bbls 10.3 ppg NaC1/NaBR brine into well taking diesel returns into vac truck. Diesel and brine formed emulsion during pumping requiring slower pump rate. Recycled 130 bbls diesel with PBU mmular communication engineer. Excavate well cellar of Niakuk No. 5 to 15 ft below pad level. Excavated 13 of 35 sections of concrete groin. Disposed of 50 bbls cement rinsate from Niakuk No. 5 at pad 3. Activity at Report Time: Preparing to circulate remaining 25 bbls diesel out of Niakuk No. 4. Fuel'Used: 650 Fuel On Hand: 1400 On-site Personnel: Weather ~ 0600 hrs. Temp: -17°F Wind: SW ~ 11 knots Visibility: 5 miles Pressure: 30.13 Precipitation: Light snow Sky: 3000 scattered Chill Factor: -49°F Submitted By: Jesse Molxrbacher Fairweather E&P Services, Inc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report'No. 13 Date: 4-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 3-Apr-96 to 0600 hrs 4-Apr-P6 Circulate remaining 6 bbls diesel out of Niakuk No. 4. RU bridge plug on end of 1" pipe and RIH to 170 ft below pad level. RU BJ Services. Mix and pump 80 sx, 15 ppg, Coldset I cement surface plug in 9-5/8" casing of Niakuk No. 4. CIP ~ 1700 hrs. RD Cementing equipment. Move well house from Niakuk No. 4 to to Niakuk No. 6 and apply heat. Confirm fishing neck of prong in tubing plug ~ 1-3/8" OD in Niakuk No. 6. Haule'd 9 sections concrete groin to BP material surplus. , Hold meeting with BJ Services to plan cement program for Niakuk No. 6. Activity at Report Time: Preparing to hold safety meeting and cut casing on Niakuk No. 5. Fuel Used: 500 ' Fuel On Hand: 900 On-site Personnel: Weather ~ 0600 hrs. Temp: -32°F Wind: 0 Visibility: 20 miles Pressure: 30.03 Precipitation: 0 Sky: Clear Chill Factor: -32°F Submitted By: Jesse Mohrbacher Fairweather E&P ~~t~[[ t~I~. [ I) M/kY 0 6 1996 Alaska 011 & Gas Cons. Oommik$ion Anchorage FAIP, WEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT' BP EXPLOP, A~TION (ALASICA) INC: PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report NO. I4 Date: 5-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 4-Apr-96 to 0600 hrs 5-Apr-96 *Niakuk No. 5: Test ambient air in Niakuk No. 5 excavation to confirm non hazardous confined space. RU to cut casing on Niakuk No. 5. Cut 20" conductor off 15 ft below pad level (6 ft below mudline). Hot tap 13-3/8" casing to investigate Arctic Pack in annulus. Cut 13-3/8" casing wi~dows away with %5/8" casingand wellhead falling 6". Cut off 9-5/8" casing and remove wellhead. Top of cement in 9-5/8" casing 3 ft below cut off level. Arctic Pack in annulus solid approximately 4 £t below cut off' level (18 ft below pad level). Pumped off: 10 gallons diesel floating on top of Arctic Pack. Displace diesel and flushed top of annulus with brine. Mix 3 sx permafi'ost ceme~t and set top off plug in annulus and 9-5/8" casing. Waiting on AOGCC inspector' to observe plug. *Niak. uk NO. 6: RU drill site maintenance to pull BPU. Found 150 psi on tubing when BPU pulled. *Carol Klein ofBPX E;~vironmental collected excavation samples as per Island Sampling Program for Niakuk No. 5 excavation. *Excavated cellar of Niakuk No. 4 and excavated 3 additional concrete groin sections. Concrete blocks fi'ozen in solid. .Activity at Report Time: Completing Niakuk No. 4 excavation and preparing to make slickline rur~ to pull prong and tubing plug in tailpipe of Niakuk No. 6. Fuel Used: 400 Fuel On Hand: Weather ~ 0600 hrs. Temp' -10°F Wind: Pressure: 29.52 Precipitation: Chill Factor: -15 °F 500 On-site Personnel: SW ~ 4 knots Visibility' 15 miles None Sky: Cloudy Submitted By: Jesse Mohrbacl~er Fairweather E&P Services, Inc. FAIRWEATItER E&P SERVICES, IxNC. FIELD PROGRESS tLEPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAK~ ISLAND ABANDONMENT Report No. 15 Date: 06-Apr-96 Job No. 007-02-300 A~E No. 731121 Contract No. 96MR048 Report Period: 0600 hfs 05-Apr-96 to 0600 hrs 06-Apr-96 Received visit from AOGCC Inspector, Doug Amos. Inspected cut offNIAK.UK No. 5 well and general location. A~mulus top job in NIAKUK No. 5 failed to set over night. Need to reset and backfill. RU CAMCO on NIAKUK No. 6 to pull plug in tubing. Test wh'eline BOP's against swab valve, leaked off at 50 psi per minute. Unable to fully function SSV. Retest BOP's with swab, SSV, and master valve closed. Test to 3000 psi. Test OK. Start test of tubing and lubricator. Test pump failed at 500 psi. Call out replacement and test lubricator and robing to 3000 psi. Test OK with no communication to 13-3/8" x 9-5/8", or 9-5/8" x 4-1/2" tumuli. R.IH with wireline retrieving tool for prong with 2000 psi on tubing. Hit minor ice plug ~ 1400' and shoved same dowt~hol.e until mere& Prong retrieved ~ 11,460' w/2500 # pull and 2 oil jar licks. Tubing pressure dropped to 280 psi. POH with prong..Rill and latched plug. POH and KD CAMCO. Completed excavation of NIAKUK No. 4 cellar to 15' below pad level and completed excavation of all concrete groin material. Activity at Report Time: Preparing to cut conductor on NIAKUK No. 4, and planning initial cement job on NIAKUK No. 6 for later in the day. Fuel Used: 350 Fuel On Hand: 150 On-site Personnel: Weather (&~ 0600 hrs. Temp: -7 °F Wind: SW ~ 3 Knots Visibility: 10 Miles Pressure: 29.61 Precipitation: None Sky: Cloudy Chill Factor: -11. °F Submitted By: Jesse Mot~'bacher Fairweather E&P Services, .Inc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAK~ ISLAND ABANDONMENT Report No. 16 Date: 07-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract Noo 96M-R048 Report Period: 0600 hrs 06-Apr-96 to 0600 hrs 07-Apr-96 Cut 48" Structural Casing offNIAKUK No. 4 Approx 15' below pad level. Break out cement behind 48" casing to access 30" casing. Reset annulus top offplug in NIAKUK No. 5. Notified Doug Amos, AOGCC RE: top offjob. Mr. Amos requested photo documentation prior to welding steel plate over 13-3/8" surface cashlg. Took photo's and welded cap on 13-3/8" casing on NIAKUK No. 5. Presst~re tested 9-5/8" x 4-1/2" annulus in NIAKUK No. 6 to 2000 psi. Test OK. RU BJ SelMces to cement on NIAKUK No. 6. Set 500 psi backup pressm'e on 9-5/8" x 4-1/2" annulus. P-Test lines to 900 psi. Tree cap crossover to cementing head leaked. Tightened crossover and retest lines to 1000 psi & 4000 psi. Test OK Pump 200 bbls 9.0 # NaC1 brine preflush. SD 2x's for pump reprhne & leak in cementing head crossover. Complete 200 bbl preflush ~ 3 to 6 BPM & Inj pressure from 3200 psi (Initial) to 1.500 psi (Final). Pump 30 bbls fresh water spacer, 195 sx class "G" w/0.5% FL-52, 0.5% CD-32, 0.05% A-2, 1 GHS FP-6L additives. Displaced with 1 bbl fresh water, wiper dart, 10 bbls fresh water, and 164 bbls 9.6 # NaC1 brine. Squeeze pressure built 1000 psi from 1260 psi to 2260 psi over last 11 bbls displacement when cement contacted formation. SI well atter displacement. CIP ~ 21:30. KD BJ Services & WOC. Activity at Report Time: Cutting 30" conductor on NIAKUK No.4 and RU to pressure test cement plug in NIAKUK No. 6. Fuel Used: 800 Fuel On Hand: 1950 On-site Personnel: 7 Weather~ 0600 hrs. Temp: 0 °F Wind: SW ~ 3'Knots Visibility: 15 Miles Pressure: 29.76 Precipitation: Trace Sky: Cloudy Chill Factor: -4 °F Submitted By: Jesse Molu'bacher FAIRWEATKER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASIC~k) INC. PROJECT: P&A NIAKUK NOS. 4, $, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 17 Date: 08-Apr-96 Job ?40. 007-02-300 · AFE No. 731.121 Contract No. 96MR048 Report Period: 0600 hfs 07-Apr-96 to 0600 hrs 08-Apr-96 Cut 30" conductor offNiakuk No. 4. Broke out cement behind 30" conductor to access 20" casing. Hot tap 20" casing and flushed Arctic Pack and diesel out of 20" x 13-3/8" annulus with brine. Cut 20" casing apax~ with wellhead dropping approximately 6". Hot tap 13-3/8" x 9-5/8" romulus and flushed with brine. Pressm:e tested cement plug in Niakuk No. 6. Tubing pressure at 1600 psi prior to test. Pressure test to 2000 psi for 1.0 minutes. Test witnessed by AOGCC representative Doug Amos. Bled tubing pressm'e to 500 psi. Activity at Report Time: Preparing to cut 13-3/8" casing on Niakuk No. 4 and pl.amfing wSreline job for late afternoon on Nia. kuk No. 6. Fuel Used: 600 Fuel On Hand: 1350 On-site Personnel: 7 Weather ~ 0600 hrs. Temp: 6 °F Wind: SW ~ I 1 Iq. nots Visibility: 2 Miles Pressure: 29.99 Precipitation: Li. ght Snow Sky: Cloud¥..w/fog ... Chill Factor: -20 °F Submitted By: Jesse Moku-b ach.er Fairweather E&P S ~[v~,~lc~ ~.~ FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 18 Date: 9-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hfs 08-Apr-96 to 0600 hrs 09-Apr-96 Cut 13-3/8" casing on Niakuk No. 4 with wellhead dropping approximately 8". Cut off 9-5/8" casing to remove wellhead. Lead line annuli in Niakuk No. 4 with 20" X 13-3/8" filled with solid Arctic Pack to 27 ft below pad level. Solid Arctic Pack encountered 60 ft below pad level in 13-3/8" X 9-5/8" annulus. RU SWS wireline to perforate tubing on Niakuk No. 6. RIH with 1-9/16" perf gun to 11,193 ft and encounter- lng obstruction. Unable to move gun deeper. Consult with AOGCC rep, Doug Amos, and elect to shoot tubing fi'om 11,183.5 fl to 11,186.5 ft with 13 shots. Tubing press differential of 1000 psi equalized with casing after shots fired. POH and RD SWS. RU BJ Services to cement Niakuk No. 6. Hold safety meeting and recheck balanced plug calculations. P-test lines to 3000 psi. Pump 5 bbls 9.6 ppg NaC1 brine to establish circulation out 9-5/8" casing, followed by 35 bbls fresh water. Mix and pump 12.5 bbls (70 sx) 15.8 ppg, Class "G" cement with 0.5% FL-52, 0.5% CD-32, 0.05% A-2 and 1 GHS FP-GL additives. Displace cement with 3 bbls fresh water and dropped wiper dart. Complete displacement with 7 bbls fresh water (continued next page) Activity a't Report Time: Fuel Used: 500 Fuel On Hand· 850 On-site Personnel: 7 Weather ~ 0600 hrs. Temp: -14°F Wind: SW ~, 12 knots Visibility: 4 miles .w/fog . Pressure: 30.42 Precipitation: None Sky: Clear Chill Factor: -47 °F Submitted By: Jesse Mohrbacher Fairweather E&P Services, Inc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASICA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 18 Date: 9-Apr-96 Job No. (}07-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 08-Apr-96 to 0600 hfs .09.-Apr-96 followed by 155 bbls 9.6 ppg NaC1 brine. Well on 29 psi vacuum when pump shut down. Equalized pressures and SI well. RD BJ Services. ^ Activity at Report Time: WOC and prep for wireline. Fuel Used: ~Veather ~ 0600 hrs. Temp: Pressure: ~hill Factor: °F Fuel On Hand: °F Wind: Precipitation: ,. On-site Personnel: Visibility: Sky: Sub~nitted By: NiA. Y 0 6 1996 Oil & Gas Cons. co~m{ssion ~chorage FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 19 Date: 10-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 09-Apr-96 to 0600 hrs 10-Apr-96 RU to pressure test 13-3/8" X 9-5/8" annulus on Niakuk 6. Pressure tested annulus to 2000 psi. Test okay. RU Schlumberger to perforate tubing and 9-5/8" casing. Perforated 5 ft of tubing and 9-5/8" casing from 2054 ft to 2059 ft with 2-1/8" gun, UJ25A charge at 4 SPF. Shot gun with 500 psi on tubing. After perforating, pressured up tubing and 9-5/8" casing to 750 psi with no immediate communication to 13-3/8" X 9-5/8" annulus. Presstire slowly built to approximately 100 psi in 13-3/8" X 9-5/8" annulus with 750 psi on 9-5/8" casing. Suspect cement behind 9-5/8" casing. Pick up new gun to reperforate tubing and casing from 1950 ft. to 1954 ft with 3-3/8" gun, 6 SPF. Immediate communication with 13-3/8" X 9-5/8" annulus after gun fired. Bled wellhead pressure to zero. Prepared Niakuk 4 for top job. Activity at Report Time: Rigging up BJ Services to set cement plugs in Niakuk 6 and pump top job in lXliakuk 4. Fuel Used: 600 Fuel On Hand: 250 On-site Personnel: 7 Weather ~ 0600 hrs. Temp: 18°F Wind: ENE ~ 4 knots Visibility: 4 miles Pressure: 30.48 Precipitation: None Sky: Clear Chill Factor: -23 °F Submitted By: Jesse Mohrbacher Fairweather E&P Services, Inc. FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA)INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 20 Date: il-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 10-Apr,96 to 0600 hrs Il-Apr-96 RU BJ Services to cement 13-3/8" X 9-5/8" annulus and set balanced plugs in tubing and 9-5/8" casing of Niakuk 6. Tie into 13-3/8" casing wing valve. Pressure test line to 2500 psi. Pump 5 bbls 9.6 ppg brine preflush and 10 bbls fresh water. Mix and pump 114 bbls Coldset III and 3 bbls Coldset I cement taking returns out 9-5/8" casing valve. Pumped 8 bbls per minute at less than 200 psi. Cement in place at 0855 hours. Shut ~town to refill water truck and change out vac truck. RU on tubing and pressure test lines to 3500 psi. Pump 40 bbls 9.6 ppg brine preflush and 17.5 bbls fresh water. Mix and pump 25 bbls Coldset I cement. followed by 3 bbls water. Drop dart and pump 2 bbls water followed by 19 bbls .9.6 ppg brine to set balanced plug. Shut in well. Cement in place at 1238 hours. Pumped 8 bbls per rain at 600 psi for balanced plug. Set top job cement plugs in Niakuk 4 annuli but cement fell through Arctic pack. New top job cement plug necessary for Niakuk 4. Activity at Report Time: Rigging up Schlumberger to cut 4-1/2" tubing at 200 ft in Niakuk 6. Fuel Used: ~ ~/CO ~'' .... Fuel On Hand: N/A On-site Personnel: Weather ~ 0600 hrs..Temp: -10°F Wind: NE ~ 10 knots Visibility: 15 miles Pressure: N/A Precipitation: None Sky: Clear Chill Factor: -31 °F Submitted By: Jesse Mohrbacher F airw e a th e r E~[t~~it ~, ~..n~ U~Y 0 6 t996 AnchOrage FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 21 Date: 12-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 11-Apr-96 to 0600 hrs 12-Apr-96 RIH with Schlumberger jet cutter on Niakuk 6. Fire cutter ~ 202 ft. POH and RD Schlumberger. ND tree and circulate out remaining diesel in well. Weld lifting eye on tubing hangar. R'U crane and pull 50,000 lbs. With no movement in hangar. Loosen tubing spool bolts to confirm hangar not stuck in wellhead. Cut off lifting eye and NU tree. RU to circulate 13-3/8" X 9-5/8" annulus in Niakuk 4. Circulate diesel to flush annulus from 30 ft below pad level. Initial top job cement plug ~ 35 ft below pad level. Followed diesel with brine to clean up annulus. Cleaned out 20" X 13-3/8" romulus to 15 ft below pad level and encountered cement. Activity at Report Time: Preparing to resh°ot 4-1/2" tubing in Niakuk 6 at 180± ft. Fuel Used: N/A q~Z9~ Weather ~ 0600 hrs. Temp: Pressure: N/A Chill Factor: -40°F Fuel On Hand: N/A On-site Personnel: -10°F Wind: SW ~ 15 knots Visibility' 5 miles Precipitation: None Sky: Partly cloudy "Submitted By: Jesse Motzrbacher Fairweather E&P Services, Inc. FAIRWEAT~R E&P SERVICES, I~C. FIELD PROGRESS tlEPORT CL][ENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NiAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report Ne. 22 Date: 13-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 12-Aor-96 to 0600 hrs 13-Apr-96 RU SWS to cut tbg on Niakuk No. 6. Shoot 4-1/2" tubing with jet cutter at 182' and 177' in consecutive hms. I~U crane on tubing spool and pull spool fi'ce. Set tubing in slips and cut tubing to remove spool. Pull OOH with tubing and control line from 182'. Shot at 177' mushroomed tubing but d~d not cut. Run in 9-5/8" casing to 170' belowpad level with 1" pipe. RUBJ Services to cement. Mix and pump 80 sx (13 BBLS) Coldset I cemefit in 9-5/8" casing in Nialmk No. 6. Completed top job cement plug in 13-3/8" by 9-5/8" anmflus in Niakuk No. 4. RD BJ Services. Began cellar excavation on Nialmk No. 6. Activity at Report Time: Excavating well cellar on Niakuk No. 6. Fuel Used: 600 Fuel On ]][and: 1250 On-site Personnel: Weather ~ 0600 hrs. Temp: -21 °F Wind: SW ~ 8 Knots Visibility: Pressure: 30.30 Precipitation: None Sky: Clear Chill Factor: -42 °F Clear Submitted By: Jesse Moltrbacher FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 23 Date: 14-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 13-Apr-96 to 0600 hrs 14-Apr-96 Completed excavation on Niakuk No. 6. Cut offNiakuk No. 6 wellhead and topped off 13-3/8" X 9-5/8" annulus with 20 sx cement. Trimmed casing stubs on Niakuk No. 4. Bobby Foster with AOGCC stopped by to inspect Niakuk wells No. 4 and 6 and confirmed cement to surface in all casing and annuli. Hauldd cellar material fi'om Niakuk No. 6 to lined containment area at East Dock. Collected remaining soil samples as per BPX Island Abandonment Plan and submitted same to BOC Lab. Scratched top 6" of gravel attempting to locate three (3) survey points/markers with backhoe. Activity at Report Time: Preparing to backfill Niakuk No. 4. Fuel Used: 650 Fuel On Hand: 600 On-site Personnel: Weather ~ 0600 hrs. Temp: -28°F Wind: SW ~, 6 knots Visibility: 5 miles Pressure: 30.40 Precipitation: None Sky: Clear Chill Factor: '42 °F Submitted By: Jesse Mohrbacher Fairweath er ~Cl,~r~s~e.. NI~Y 0 6 1996 Gas cons. commiSSiOn Anchorage FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 24 Date: 15-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 14-Apr-96 to 0600 hrs 15-Apr-96 Welded steel plate cap over 20" surface casing on Niakuk 4 and backfilled excavation. Welded steel plate cap on 13-3/8" surface casing and backfilled excavation of Niakuk 6. All wellhead cut off 15 ft below pad level and a minimum of 4 ft below mudline. Demobed camp m~d equipment with the exception of front end loader. Picked up debris on location. Activity at Report Time: Traveling to Niakuk location to dress up backfill and pickup debris. Fuel Used: 500 Fuel On Hand: 100 On-site Personnel: 4 Weather ~ 0600 hrs. Temp: -19°F Wind: Visibility: 15 miles Pressure: 30.03 Precipitation: Sky: Clear Chill Factor: -41 °F N ~ 7 knots None Submitted By: Jesse Molu'bacher FAIRWEATHER E&P SERVICES, INC. FIELD PROGRESS REPORT CLIENT: BP EXPLORATION (ALASKA) INC. PROJECT: P&A NIAKUK NOS. 4, 5, AND 6 AND NIAKUK ISLAND ABANDONMENT Report No. 25 Date: 16-Apr-96 Job No. 007-02-300 AFE No. 731121 Contract No. 96MR048 Report Period: 0600 hrs 15-Apr-96 to 0600 hrs 16-Apr-96 Picked up remaining debris on location. No evidence of m~y surface materials left onsite. Mounded excava- tions to grade plus 2 ft to account for settling. Pulled carsonite road markers and removed road sign. Hauled dumpster load of scrap metal and cement to Oxbow landfill. This will be the final report for Niakuk well abandonment project. Activity at Report Time: Demobilizing equipment and materials from Niakuk and Northwest Milne well abandonments. Fuel Used: 100 Fuel On Hand: 0 On-site Personnel: Weather ~ 0600 hrs. 'Temp: -23 °F Wind: S ~ 4 Visibility: 1'0 miles Pressure: 29.78 Precipitation: None Sky: Clear · Chill Factor: -28 °F Submitted By: Jesse Mohrbacher Fairweather E&P j[ jV iUa~ Oil & G~$ Cons; comm~iofl AnGhorq9 MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission / , ..:.'/" TO' David ,.,ohr':~:on, cna~rm~.¢.~ THRU: Blair Wondz;.,~~ ~'. I. ~upe,"v~sor ~ 'T. IL.f FROM: Bobby Foste ,r~,.~.': Petroleum Inspector DATE: April 13, 1996 FILE NO: SUBJECT: YZ91DMDD.doc Surface P&A Plugs BPX - Exploratory ,A//i'- Niakuk wells 4 and 6 Prudhoe Bay Field April 13, 1996: I traveled this date to BPX's Niakuk wells 4 and 6 after being contacted by Jesse Mohrbacher, Fairweather E & P services rep., and inspected the cement plugs set for final P&A of these two wells. I arrived on the location and met with Jesse and went over the cement plugs that had been set. We then went to the cutoff casing which was cut off 4+- below the mud line. All of the annuli had been filled with cement which was set up very hard. Jesse informed me that he was going to weld a plate over the casing stubs even though it was not called for in the P&A program. I told him that was OK with the me. A complete set of pictures and daily reports were sent to the AOGCC office by Fairweather E&P Services and are filed in the respective well files. Summary: I inspected the satisfactory surface P&A cement plugs set in BPX's Exploratory wells Niakuk 4 and 6 drilled in 1984 and 1986. Attachment: Pictures and daily P&A reports in well files. Unclassified Confidential (Unclassified if doc. removed ) X Confidential .. '"' ( Title 20 AAC 25, Article 2 ) FILE INFORMATION: .Operator: BPX Address: PO Box 196612 Anchora~le, Alaska Surface Location: 3524' F NS L, 144' F WE L Section 25 ,T 12N ,R 15E ,M UMP Inspection Date: Well Name: PTD No.: APl No. 50- Unit or Lease Name: Field and Pool: Downhole P&A Date: ! 20 AAC 2S.125, ABANDONMENT'M~RK..E.R: I NIAKUK 4 85-0200 029-21217 EXPLORATION EXPLORATION 2/17/85 Approval Date: 4/13/96 Steel Post OD: (4" mtn) "Le~gth (10' min.) ft. Height Above Final Grade Level (4' min.) ft. Top of Marker Post Closed With: (Welded, Cmt., Cap), Set: (On Wellhead, Csg, In Cmt) Distance Below Final Grade Level: ft. Side Outlets: All valves and nipples removed ? All openings closed ? With Marker Plate Diameter: 30" "Thickness: .5" "Distance Below Final Grade Level: 4' ft. i Marker Plate Attached To: Wellhead Cutoff Csg X Other Information Beadwelded Directly to Marker Post or Blind Marker Plate: ( Note when different from file information) Unit / Lease Name: Remarks: NOT REQUIRED L, F L ~ ,"i' ,R ,M Operator: Well Name: Surface Location: F Section 20 AAC 25.170 - LOCATION:CLEANI~IP: '! Approval Date: Inspection Date: PITS: Filled In: Liners Removed or Buried: Debds Removed: SURFACE CONDITION OF PAD AND / OR LOCATION: N/A ( Rough, Smooth, Contoured, Flat, Compacted ) Clean: Type & Quart. of Debds if any remaining on pad and / or location: TYPE AND CONDITION OF SURROUNDING AREA · ( Wooded,Tundra, Grass, Brush, Dirt, G ravel, Sand) Clean: X Type & Quan. of Debris if any remaining on surrounding area · TYPE AND CONDITION OF ACCESS ROAD AND SURROUNDING AREA: N/A ( Dirt, Gravel, Ice, Other) Clean: Type & Quan. of Debris if any remaining on access road or surrounding area · CLEANUP WORK REMAINING TO BE DONE · NEEDS TO BE INSPECTED THIS SUMMER RECOMMENDED FOR APPROVAL OF ABANDONMENT: Yes X No (If "No" See Reason ) Distribution: odg - Well file c- Operator c ~ Database c -Inspector Reason: FINAL ABANDONMENT OF WELLBORE ONLY UNTIL LOCATION CAME BE INSPECTEr FINAL INSPECTION: Yes No INSPECTED BY: BOBBY D. FOSTER X DATE: 4/13/96 FI-000 (Rev. 3/93) Y991DMDD.XLS ( STATE OF ALASKA ~" .~.-..SKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abax:k~ ~ Alter casing .__ Change approved program ~ Pull ~ul~ng ~ Variance ~ 2. Name o! Operator Sohio Alaska Petrolet~m Company 5. Type of Wetl: (BP Kxploration (Alaska) Inc.) Oev~of3ment Exploratory 3.,N::ldress P O Box 196612 Stratigraphic Anchorage, Alaska 99519-6612 Service~ Susoend m OperaTion shut.~m ._. Re-enter suspended well ~ Rm3air ~ ~ Plugging ~ Time exten~on __ StimulaZe ~ Perforate __ Other ~ 4. Location of wetl at sudace 352/~' NSL, 164' W'A%, Sec. 25 I. 12 N., R.15E, ~ At top of productNe interval 3526' 'NSL, 164' WEL, Sec. 25, T.12N., R15E., IIBM At eflective depth 3625' NSL, 130' WEL, Sec. 25, T.12N., R.15E., UBM At total depth 3625' NSL, 130' WEL, Sec. 25, T.12N., R.15E., UBM 6. Datum elevation (DF or KB) ~iG3-'. to KB= 37.9 ft. = +r,, N~qL 7. UnR or Property name ADL 36630 8. Well number Niakuk No. 6 (62-25-12-15) 9. Permitnumber 8~-200 10. APInumber 50--029-21217 11. FieldlPool ~xploration feet 12. Present well condition summary Total depth: measured 10,300 true vertical 10,300 feet feet Plugs(measured) EZSV @ 2210' ~ cml:. plug 2160' -2210' MI) Effective depth: measured 2,160 true vertical 2,160 fe~ feet Junk (measured) NOt,~ Casing Length Size Structural - - Conductor 120' ' 30" Sudace 1703 i 20" Intermediate 5028 ' 13-3/8'' Production 10,296 ' 9-5/8" Liner NON~ · - Pedoration depth: measured (NO ?EAZ~'Oi~tTTONS) true vertical Cemented Measureddepth ~ueverticaldepth To surface 120' 120' · o surface 1703' 1703' 2860ft3(~'13C@1333') 5028' 5028' 171~ft3(TOC@ 5238')10,296' 10,296' -- -- OR,161NAL Tubing (size, grade, and measured depth) (NOI, rg) Packers and SSSV (type and measured depth) (NONE) 13, Attachments "' DeSCriptiOn summary of Pr(~posai ~4. Estir~'~ted date'for ~mencing operation ......... i 15, StatUs o~ wetl classification as: ........... March. 1, 1996 i6. If pr0P°s~ was verbally apProved .......... Oil ._ Gas __ Suspended X Name of a..pprover ....... ,~" ,, , Dar@ approved J ser,~ce 17., hereb¢.. ~rt~.i/ly~t ,oregoing~ and correct ,o the best o, my knowledge. / / Conditio~ of approval: Notify. Commission so represenlative may witne~ .Plug. integrity ~ _ BOP Test ~ location clearance ._/,~... IApprOval, I No. 0 Mecrtanical Integrity Test .._ Subsequent form required 10-,, ~.O Approved by order of the Commission Original Signed By Tuckerman Babcock Approved Copy · Returned ~Date Form 10-403 Rev 06/15/88 SUBMIT IN TRIPUCATE BPX (SOHIO ALASKA PETROLEUM COMPANY) NIAKUK NO. 4 (42-25-12-15) lTD 84-200 /API #50-029-21217 PROPOSED WELL ABANDONMENT AND LOCATION CLEARANCE PROGRAM FAIRWEAT[[ER E&P SERVICES~ INC. BACKGROUND AND SUMMARY OF PROPOSED WORK The Niakuk No. 4 well was spudded on January 15, 1985, drilled to 10,300 fi. MD/TVD and suspended on February 17, 1985. The well was logged and cased to TD but not perforated. The well was then suspended for future consideration as a Niakuk development or observation well. Niakuk No. 4 is no longer being considered for this purpose and the operator proposes to abandon the well in accordance with the program defined herein. At the time the well was suspended, the 9-5/8" long string was not drilled out and an EZ-drill bridge plug was set at 2,200 ft. MD in that casing string, with a 50 R. cement plug laid on top. After setth~g this plug, the drilling mud above the plug was displaced with diesel to the surface. Arctic Pack, chased with cement, was set in both the 20"X 13-3/8" and 13-3/8" X 9-5/8" tumuli during drilling operations. Attachment I shows the current status of the Niakuk No. 4 well, The Niakuk No. 4 location is on a manmade gravel island in the Beaufort Sea approximately 1-1/2 miles north of Heald Point. Water depth in the island vichfity is 3 ft. The Niakuk No. 5 and No. 6 wells are also situated on tiffs island. These wells are also scheduled .for abandomnent and are covered in separate submittals. In order to abandon the Niakuk No. 4 well mad its location in accordance with cun'ent Alaska Oil and Gas Conservation Commission (AOGCC) regulations, the following tasks must be completed: 1. Displace diesel in the 9-5/8" casing with 10.3 ppg brine. 2. Set a 150 R. surface cement plug in the 9-5/8" casing. . Set 150 fi., or maximum achievable length, if less than 150 fi., cement plugs in both the 20" X 13-3/8" and 13-3/8'° X 9-5/8" annuli. 4. Excavate and remove well cellar. . Cut off all casing strings a minimum of 4 ft. below original lnudline (seafloor before artificial island was constructed), and install subsurface steel marker plate. 6. Backfill excavation and regrade island surface. Pickup any remaining debris on. the location. NIAKUK NO. 4 1 The above work is required by 20 AAC 25.105 (i)(2)(k), 20 AAC 25.120, and 20 AAC 25.172 (c)(d). Attachment II presents a schedule for completing the abandonment of all Niakuk Island wells and island abandmmaent as a combined project. PROPOSED OPERATIONS PROGRAM Obtain all required permits and regulatory approvals before starting job. Fairweather proposes to secure all permits for the project on behalf of BPX. Anticipated permits include the following: · Application for Sundry Approvals, Form 10-403 (AOGCC); · Wastewater Disposal Permit; · Food Service Permit; · North Slope Borough Administrative Approval; and · Island Abandonmem Plan Approval (DNR). o Mobilize all required personnel mad equipment to the Niakuk No. 4 location on an as needed basis via CATCO units. The proposed personnel and equipment spread is as follows: Personnel: Working Supervisor (1) CATCO Operators (3) Mechanic (1) Welder (1) Cook (1) BOP/Wellhead Hand (1) EMT III/Environmental Tech (1) Equipment: CATCO Units as needed 200 ft. 3/4" Steel Pipe 200 ft. 1" Steel Pipe Nitrogen 966 Loader Cat 225 Backhoe 3,500 gal. Fuel Tanks (2) 2,800 gal. Vacuum Liquid Waste Tanks (2) 125 KW GenSet 3,000 gal. Water House (2) 12 Man Skid Camp with Generators (2) Hot Tap Equipment NIAKUK NO. 4 2 o o , , 7~ Equipment: (cont.) Mechanics Shop (Weld/Cut/Maintenance/Etc.) 7-1/16" 5,000 psi WP BOPE Cement Mixing & Pumping Module Cement 1 Lot Valves, Fittings, Tools, Etc. 1 Lot Oil Spill Contingency Equipment Hot Air Heaters (2) 1 Prefab Wellhead Warm-up Shelter with Ceiling Port Cellular Telephones Air Monitor Trash Dumpster Erect a prefab shelter over well and apply heat with hot air heaters. Check for pressure on 9-5/8" casing, 20"X 13-3/8" annulus, and 13-3/8" X 9-5/8" ammlus. Remainder of program assumes any pressure can be bled off. Remove master valve and tubing head adaptor. Nipple up and test 5,000 psi WP 7-1/16" BOP stack. BOP's will consist of one set of blind/shear rmns m~d m~ m~nular preventer (see Attactunent III). The BOP stack will be tested to 1,500 psi. Rig up mixing and pumping module. RIH with 1" open ended pipe to approximately 50 ft. Displace diesel in 9-5/8" casing with 10.3 ppg brine. Pump brine in small batches and allow brine and diesel to swap in wellbore. Monitor volumes pumped closely, in order to confirm when the fluid swap displacement is complete. When complete, POH with 1" pipe. Nipple down BOP stack. Rig up mixing and pumping module. Using 1" open ended pipe, run in hole to 170 ft. below island surface. Push "poor boy" cement retainer (i.e. wad of cement sacks) in hole ahead of pipe. Mix and pump 170 ft. pern-tafi'ost cement surface plug in 9-5/8" casing. Have plug witnessed by AOGCC representative. Excavate m~d remove well cellar box. Continue to excavate below cellar box to expose 30" conductor at a point approximately 5 ft. below original mudline. Cut and remove 30" conductor such that the remaining 30" conductor stub is approximately 4 ft. below original mudline. Break out cement from behind 30" conductor to expose 20" casing. Rig up safety line on wellhead to prevent wellhead from falling into excavated area as further cuts are made. NOTE: Conduct safety, meeting prior to initiating Steps 6, 7, 8, and 9. Hot tap the 20" casing just above the 30" casing stub to drain Arctic Pack in 20" X 13-3/8" romulus. Rig up nitrogen supply to hot tap valve to provide nitrogen purge while cutting 20" casing. NOTE: Arctic Pack may be desiccated and will not easily drain from hot tap, but may be flammable nevertheless. N.IAKUK NO. 4 3 . . 10. 11. 12.' 13. 14. Cut and remove 20" casing window to expose 13-3/8" casing. Use caution when cutting 20" casing, since some compression may be present in 20" casing due to 13-3/8" and 9-5/8" casing strings hanging in the wellhead. Cut rectangular windows (3" wide by 3' long) in an oppositely opposed radial fashion to gradually relieve compressionl Use an extended reach torch for this work and expect the wellhead to drop several inches when 20" casing windows are removed. Repeat hot tap and casing cutting procedure for 13-3/8" casing to expose 9-5/8" casing. Cut 9-5/8" casing and remove wellhead for backhaul. After wellhead is removed, nm in 20" X 13-3/8" annulus with 3/4" steel pipe to 150 ft. or to maximum achievable depth, if less than 150 ft. Notify AOGCC if 150 ft. depth cannot be achieved. Mix mid set a permafi'ost cement surface plug in 20" X 13-3/8" annulus. Repeat this procedure for 13-3/8" X 9-5/8" annulus. Remember to get advance AOGCC approval for any surface annular plug that cannot be set to the full 150 ft. length. Collect all displaced annular fluids in vacuum tank. Give AOGCC representative the opporttmity to witness all annular plugs. Trim up casing stubs and weld a 30" X 30" X 1/2" steel marker plate identifying well on 30" conductor at approximately 4 ft. below original mudline. Backfill excavation to island grade, but leave small mound of gravel over excavation to allow for natural compaction after island thaws next summer. Attacltment IV shows the post-abandonment condition of the wellbore. Pick up any debris on location and move to next well in program or demob to Deadhorse, if Niakuk No. 4 is final well in program. File new Form 10-407 with. AOGCC referencing the new P&A well status. Retttm to Niakuk No. 4 location the following summer to pick up a. ny minor remaining debris exposed after snow meks, mid to conduct a final location inspection with the AOGCC and DNR. WASTE DISPOSAL AND RESPONSIBILITIES FOR WASTE o All liquid wastes recovered in the abandonment program will. be transported in secure tanks to CATCO's yard in Deadhorse. The recovery and transpmlation of these wastes will be accomplished by Fairweather in a maturer satisfactory to BPX. After transport to CATCO's yard, the wastes will be available for the BPX contract hauler to transport the wastes to an injection facility as directed. BPX will be responsible for final disposal arrangements (injection). Fairweather will facilitate disposal arrangements, if requested. NIAKUK NO. 4 4 . Solid waste (i.e., cellar box, wellhead, etc.) will be transported to the North Slope Borough Solid Waste Disposal Site for disposal. This will be accomplished by Fairweather. o In the event that any hych'ocarbon contaminated gravel mid soil is identified during excavation, the materials will be segregated and staged on location. Sampling, transport and disposal of such materials Mil be at the direction of BPX and costs for such sexx, ices will be in addition to the fixed price well abandonment bid. REPORTING AND BPX OVERSIGHT BPX will receive daily progress reports faxed to the Anchorage BPX office and to the designated recipient on the North Slope durh~g the term of the project. DmSng any periods when a BPX representative is not on site, the faxed reports will be followed up by a phone call to the designated BPX contact in Anchorage or on the North Slope. o The mount of direct BPX oversight of field operations is entirely at the discretion of BPX. Transportation and camp space will be provided for the BPX representative. NIAKUK NO. 4 5 Attachment I Wellbore Schematic BPX (Sohio Alaska Petroleum Company) Niakuk No. 4 (42-25-12-15) Present Condition (~0/~0/9 LEGEND ARCTIC PACK CEMENT DIESEL Mud 11.4- ppg 30" @ 120' RKB Est. TOC 13 3/8" x 20" Annulus @ ~ 1,333' RKB DV Collar @ 1,591' RKB in g 5/8" Casing DV Collar @ 1,657' RKB in 13 3/8" Casing 20" @ 1,703' RKB EZ Drill @ 2,210' RKB with 50' Cement Plug on Top. TOC @ 2,160' RKB SPUD DATE: JAN. 15, 1985 DATE SUSP: FEB. 17, 1985 STRAIGHT HOLE All depths are original RKB which is 57.9' above GL. GL elevation is +5" MSL 13 5/8" @ 5,028' RKB TOC in 12 1/4' x 9 Annulus O m 5,238' RKB PBTD 10,254 RKB 9 5/8" @ 10,296' RKB TD - 10,300' RKB NO SCALE FAIR/PRO-O15/N04-1/2/11/96 1:1 SR PROPOSED NIAKUK ISLAND AND WELL ABANDONMENT SCHEDULE FAIRWEATHER E&P SERVICES, INC. DAYS TASK , ,1 I 2- 3 .... 4 5 '6 "7 8 9 10 11, ,, 12 113 14 15 16 17 18.j . 19 ......... ~0' Mobilize ~ '" ",'~' ' (Assumes travel from Deadh'orse) ... ~--~ ........... Displace Diesel and Set 9-5/8"~; '~~ . Surface Plug o Niakuk No...4.. ~.~'.~,~ ..... Excavate Cellar and Remove ~'~'~:, '"' '"': . Wellhead - Niakuk No. 4 .... ~.~.-,~ .. . ......... Set 20"X 13-3/8'; and 13-3/8'' X~"'" '" 9-.518" Annulus Plugs - Niakuk No. 4 Install Marker Plate, Backfill~ .... Excavation, Pickup Debris, . .~ . . Niakuk No. 4~.,_._,.~ Move a'nd Rig Up on Niakuk No. 5 ,-~-."-~ Displace Diesel and Set 9-5/8" ~~ ~ Surface Plug- Niakuk No. 5 Excavate Cellar and RemOve Wellhead - Niakuk No. 5 . · Set 20" X 13-318" and 13-3~8"' X ~.~ . 9-5/8" Annulus Plugs - Niakuk No. 5~-~,~ , ,,, Install M~rker Plate, Backfill ~ - Excavation, Pick up Debris, .~ , Niakuk No. 5 ' M°ve and Rig UP on Niakuk N°' 6 ~~ ' Squeeze Perforations and Set Plug below packer. WOC. Niakuk No. 6 ~,, Top of Packer - Niakuk No. 6 Perforate Tubing and 9-5/8" Casing. ~:t~:~.:~" ~;: ' ~ . Cement 13-3/8" X 9-/8' Annulus and % ~_~i ~~ ' ...~ ..... Set 9-5/8" Casing and Tubing Plug at .'- ~:.: ,:-_._'.:: r...~ i ., 2100 ft. WOC.- Niakuk No. 6 '.-:::'~> ',:~ Cut and Recover Top 200 ft. of Tubing. ~;.-.- ~.,., Set Surface Plug in 9-5/8" Casing. .9,',- '':'~' o ,¢--.-,:~~. ~ ' i':'.::~ ,:. --4' ' Niakuk No. 6 ,::~:, ~; ':":'"'~ . Wellhead - Niakuk No. 6 ~!' ~'>'"' ~ '.t [:::'-:" , tion, Pick up Debris Niakuk No. 6 ~.~- - , Demobilizaiton to Deadhorse or Excavate, Remove and Haul ' ' ' ....... Concrete GroinI I i I I -) NOTE: Schedule does not reflect follow-up activities in Summer, 1996. Attachment ill Fairweather E&P Services Inc. BOP Schematic Diagram for P&A of Niakuk No. 4 (BP Exploration (Alaska)Inc.) 7 1/16" - 5,000 psi wp Annular BOP 57" Over All Length 7 1/16" - 15,000 .p. sl wp x 5,000 psi wp adapter. 15 Over All Length 7 1/16" - 15,000 psi wp Single Ram BOP with Shear and Seal 22 1/2" Over All Length 7 1/16" - 15,000 psl wp x 5,000 psi wp adapter. 15' Over All Length II 89 2" FAIR/PRO-O15/NIA4/2/12/96 SR 1:1 NOT TO SCALE I II Ill I II II Ill I Ill~l I Illlll I [ I I Il] I Attachment IV Wellbore Schematic BPX (Sohio Alaska Petroleum Company) Niakuk No. 4 (42-25-12-15) Post Abandonmenf Condition LEGEND J~ ARCTIC PACK CEMENT ~ 10.5 ppg Brine J-"-J Mud 11.4 ppg Subsurface S[eel Marker Plate 'I Minimum 150' Permafrost Cement Plugs iln39 5/8" Casing, 20" X 1~5 5/8" and 3/8" x 9 5/8~ Annuli 30' @ 120' RKB Est. TOC 1;5 3/8" x 20" Annulus @ 1,33.~' RKB DV Collar @ 1,591' RKB in 9 5/8" Casing DV Collar @ 1,657' RKB in 15 ;~/8" Casing 20" @ 1,70:5' RKB EZ Drill @ 2,210' RKB with 50' Cement Plug on Top. TOC @ 2,160' RKB SPUD DATE: JAN. 15, 1985 DATE SUSP: FEB. 17, 1985 STRAIGHT HOLE All depths are original RKB which is 37.9' above GL. GL elevation is +5" MSL 1.~ 5/8" @ 5,028' RKB TOC in 12 1/4" x 9 5/8" Annulus @ ~ 5,238' RKB PBTD 10,254 RKB 9 5/8' @ 10,296' RKB TD = 10,300" RKB NO SCALE FAIR/PRO-O15/N04-2/2/11/96 1:1 SR STATE PIPELINE COORDINATOR'S OFFICE J Deoartment of Enmronmental Ccaservatmn ~ Department of Natural Resources ~ Department of Fish and Game TONY KNO WLES, GOVERNOR 't~ wES' ,"' ~vENUE. S'J[TE -'-NC~O.~AGE. A,..ASKA 99501 =~ONE..~7~ 275-8594 · 9073 278-8595 :aX :'907! 772-0690 Janua~' i2. 1995 Letter No: 94-08-DRT File No: 300.15.202 CERTIFIED MAIL RETURN' RECEIPT REQUESTED - 033 798 397 Mr. 5teven D. Tax'id:- BP Exr~ioration tAlaskal Inc. P. O. Box !96612 Anchorage. )d,[ 99519-6612 Dear Mr. Taylor: Re: BP Exploration (Alaskal Inc. Inactive Drilling Waste Disposal Faciii~' Closures - Numerous Inacuve Sites The Alaska Department of Environmental Conser~'arion [ADEC) has received and completed its review of vour August 9. !993 letter, with enclosures. ,'~. ' ~, _ ,~c~uesun= approval for closure of BP Exploration (,Alaskal Inc. Drilling Waste Disposal Facilities on the North Slope. These sites have been reviewed in accordance with the ADEC Interim Site Assessrnent Guidance for Inactive Drilling Waste Sites. June 199t. This correspondence describes our review procedures, puts fo~vard the department's findings, and takes action on the reauests. Currendy. ~e second draft of Alaska's new Solid Waste Re=m.tiations. 18.AAC /JO, are under review, and this second draft contains a chapter on Inactive Reserve Pit closures. The closure criteria in d-ds proposed re=maladon parallels the closure criteria in the 1991 Guidance Document. Closure under the 199! Guidance Document should constitute closure under the proposed Solid Waste Re~lations if the',, are adopted as current drafted. The Review Procedure The qualitative risk screening procedure required in the above referenced document determines whether a site presents negligible levels of risk. or if it is a significant risk generator. A decision scheme is then employed to establish I~l') whether or not there is a Mr. Steven D. Taylor January 12. 1995 BPXA Inactive Drilling Waste Disposal Faciiitv Closure. Approval basis of concern, and (21 whether or not a waste sire is ii_keiv to present s~gnificant risk to human or environmental receptors. The first step in this screening criteria is establishinz a basis of concern: "If the waste site has released contaminants or there are mechanism .for potential releases and there are receptors nearbv, then. there may be cause for concern, and.the :vaste site should be studied further." and ','If there is no release of contamination or no mechanisms for potential releases and there are no recer~tors nearby, then there is not a basis for concern and the waste site should be considered ciosed.~' The criteria that are measured at a waste site to satisfy the above logical arguments are: Evidence of release of chemical contamination ar the waste site in excess of Alaska Water Quaiitv Standards for one or more tar2e: comr~ounds, or Mechanism for potential reiease, and Proximity of the waste site to biological receptors. If eider of the first two criteria and the last criteria are met. there is a basis for concern, and before proceeding with Step 2. a corrective action plan shall be prepared for the site which shall identify alternative ways to correct or mitigate the basis of concern, r>revent its recurrence., and select a preferred approach. Corrective action alternatives shall be described at a conceptual level, and the selection of a preferred approach shall be based on balancing protectiveness with implementability and cost-effectiveness. The second step determines W.hether contamination at a waste site present a risk to receptors that is signific.a~at. If risk is found not to be sienificant, it is considered to be "neelieible." The finding or.~.s_~gmficant risk is based on the likelihood of exposure and the likel}-ho~od of adverse consequences of exposure: "For risk to be considered significant, the receptors must be vulnerable to exposure, and the consequences of exposure must be 'adverse' to human or animal health or the environment." and. conversely, "If exposure is unli.ket;, or the consequences of exposure are not 'adverse.' then the risk is negligible. LIr. £teven D. Tavior Janua~' !i. 1995 BPXA inactive Drilling Waste Disposal Facility Closure A. pprovai If risk at a waste site is signficiant, then ~ ,',',"~ . ,.orre,.~,,. action should be taken The criteria ~ are evaluated at a waste site to satisfy the logical arguments above are exposure criteria and co~eauence criteria. Exposure Criteria: Recevtor exposure is considered to be liken when: Contaminant release mechanisms are iudaed si:nificant . or Containment migration is judged significant. One or more contaminants are envirommenmlly persistent. If exoosure is founci to be unCikelv, a f'indin~_ of neciiaible risk is made on the basis of absence of a iikeh' exposure item and the action .~ian is evaluated under the Impact/Benefit Evaluation steo. The purpose of this stev is to dete,,':mine whether the benefits of taking a correcnve action would be greater than the impacts of taking such a corrective action. If any one of the exposure criteria are met, a finding is made that exposure is likely. screemng then continues to evaluate Consequence Criteria. Further Consequence Criteria: Adverse consequences of exr~osure to contaminants from reserve pits are considere~i to be liken when: ~a) The duranon or frequency of exposure is sufficient to cause adverse health and environmental effects. This is evaluated bv reviev,'ing human and wildlife use patterns at a given waste site. waste site accessibility, and ground and surface water uses. and either; (b) The quantits., or concentration of one or more contaminants exceeds pertinent federal or sate water cmalitv criteria or standards protecting health and/or the environment. Measured contaminant concentrations in the water will be compared with health and environmental standards and criteria for each target conammant, to identify exceedances. When only human populations are at risk, health criteria are used. When only populations at risk are nonhuman ie.g., fish. wildlife, vegetation), environmenal criteria and standards are used. or: (c) One or more contaminants exhibit high acute toxicitw. The NIOSH toxicity rating system /'NIOSH 197.,t; will be used to identify contaminants highJy toxic to mammals. This Mr. Steven D. Taylor Januarv 12. 1995 BPXA Inactive Drilling Vv'aste Disposal Facilitv Closure Approval information ;,,.'ill be used to dete..'-rnine whether a tarter comoound e:d-iibits acute hith roxicitw. If the duration and frequency of exposure is insufficient to cause adverse effects, there is no need to evaiuate the other two conseauence criteria, and a finding of negligible risk is made. If the duration and frequency term is sufficient, but neither of the other two consequence criteria are met. a finding of negiigible risk is made. The action plan is then evaluated under the impact/Benefit Evaluation srer~. If the duration and frer~uencv of exposure is dete.,rmined to be sufficient to cause adverse ...a." ,.rfe..~s and eir_her or' the other r,.vo conse{nuencs criteria are satisfied, then a tindinz is made that adverse consequences are likeN, and the risk at a waste sire is said to be significant. If the screen/rig indicates that risk is significant, then the responsible parr}.' shall eroceed with implementations of corrective actions. SITES CONSIDERED FOR CLOSURE , Based upon the above referenced criteria from the June 1991 ENTERLM SITE ASSESSMENT GLqI).~NCE FOR ENACTIVE DRILLLNG WASTE SITES. the following sites listed below have been reviewed for closure' ARCTIC FOOTHILLS SITES WEST S.M( SITES Shale Wall Unit #1 ~,3-oz.s~ West Sak 4 74-o%o Kemik Unit .-.-'! ~o-oe, o Kemik Umt ~2 ~q'°%~ Kupamk Unit 1 & lA 8~. o,,8~, o~ *, Gubic U~t ~1 b3-ot3 I~itlik Unit No. 1 b~-~5- Fi~Creek Uni~ 1 w~-ot PUT RIVER SITES Put River 17-10-14. 1-I.-10-14 Put River_-,-~ 10-1z.. ~,~- 030 j 6q- COLVILLE DELTA SITES Nechelik Unit SAG DELTA AREA Sag Delta Unit No. 1 ~,a-o{?+ Sat Delta Unit No." , _ ~ 10-11-t6 7&-o~l '~ Sag Delta Unit No. 11 ~54- l~, 2.. OFFSHORE ISLANDS IN AL.*SKAN WATERS Alaska Island #1 81-tlq Niakuk 4. 5. 6 Challenge Island #1 8o-oqo Long Island #1 Niakuk t. iA. 2. 2A Niakuk 3 NIr. 5.:~ven D. Tavior 5anuar,,' I£. !995 BPXA inactive 'Drilling Waste Disposal FaciiiLv Closure A. pproval The eecision to grant ~iesure approval on these sites Nas been based ~"~ on a reviev~, of the submitted inactive drii~' 5 ~ ,in_ waste <:re assessment documents listed below by the ADEC-PCRO Solid Waste. Water Quality. and Contaminated Site Staff. and ('2') sire visits by PCRO staff during Jul',' of 1993 along-with the resultant recommended remedial actions by ADEC undertaken at a certain number of these sites. --'-" Title' Inactive Reserve Pit Pro,ram..*ssessment and Closure Supporting Documents: BPX., \'ideo-documep~tation of Pit Closure/Site Restoration Com=arat~ve .*nalvsis of Soil & Water Samples Submitting Person: Dave Lowe. BP E:mioration Alaska) Covered Facilities: Above Name~ Facilities Synopsis of Closure Procedure: Closed as is. No further acuon is needed for the drilling waste facilities at these sites, excevt as noted below. CLOSURE APPROVALS The Department's ~-=,-~ ' ,,.,,.s~on uvon :he reauest for closure application submitted bv BP Exploration (Alaskal Inc. is to approve for the below listed drilling waste facilities sites. effective January :.2. ~995. Upon review of the submitted sample results required under the [991 Guidance. "_=xain remote sites exhibited metal concentrations and hydrocarbons in the reserve put surface waters and dov,'ngradient waters in excess of the Alaska Drinking Water Standards and Alaska Water Quaiitv Criteria (AWQCS. While there is a basis for concern for those sites where exceedances occurred, there is also ne~zible risk. and any corrective action warranted at these remote sites would not be reauired, realizing that the impact of the corrective action would be much greater than the benefits received. These sites;for the most part have revegetated, and any corrective action measures implemented would-impact the established plant species at these sites. These sites are Closed As Is. There are certain sites where corrective action is warranted, however, and Conditional Closure is granted, provided the corrective action stipulations described are completed to the department's satisfaction. Mr. Steven D. Taylor January i2. 1995 BPXA Inactive Drilling Waste Disposal Faciliw Closure Approval CLOSED AS IS Nechelik Unit gl ' Sag Delta i1 - Alaska Island #1 ' Niakuk 4. 5. 6 - Challenge Island #1 .' Long Island #1 '~ Niakuk 1. lA. 2. 2A ~ Niakuk 3 -' Sag Delta 8 Sag Delta 3'& 4 Sag Delta 5 ,, West Sak 4 Put River 13-10-14. 14-10-14 Put River 24-10-14 Kemik Unit #2 ' Gubic Unit #1 cONrDITIONALLY CLOSED These closure conditions were placed on the below-named sites following the site visit/closure package evaluation. These conditions have been met at each site and are now considered CLOSED. Shal/e Wall Unit #1 Remove unused drilling additives and pallets. Kemik Unit #1 Stabilize any exposed drilling waste in reserve pit Fertilize. plus seed and/or transplant with commercial or indigenous plant material KUparuk Unit 1 & IA Stabilize any exposed drilling waste in reserve pit Surface preparation of site needed (scari~'. add soil amendments, fertilize) Monitor site using aerial photography .',Ir. Steven D. Tavior January i.2. i995 3PXA Inactive Drilling Waste Disaosai Faciiitv Closure Approval Itkillik Unit No. 1 Stabilize an',' exposed drS!in2 waste in reserve sit These conditions have been placed on the below-named sites following the site visit/closure package evaluation. Once t2ese conditions have been met. these sites will be considered CLOSED: Finn Creek 1 Remove stockr~iled debris r'rorn sad Fertilize. plus seed ana.,or transplant with commercial or indigenous plant material to entaance natural biodegradation of residual hydrocarbon contamination in the soils and waters at the site Stabiiize an',' exposed ''~' ~ in ar~,l~n__ waste the reserve pit Sag Delta Unit No. 1 Sag Delta Unit No. 2 10-11-16 Cap existing reserYe pits with available gravel and. recontour pits to blend into surrounding terrain Terms and Conditions These closure approvals are subject to the following terms anti conditions: FU-LL SITE CLOSLXE: The approval granted by this letter is for the inactive drilling waste sites only. as required under 18 AAC 60.500 rd). Closure for the pad as a whole must be coordinated between the owner:operator and the appropriate state tADNR. ADF&G. AOGCC3. or federal (BLM) agency. Additionally, should an,,' contamination from historic spills be found on the pad outside the drilling waste site (reser,,,e pit area), notification needs to be made to the ADEC.'PCRO Contaminated Sites Section (271-4399~. Mr. Steven D. Tavlor January 1" 1995 BPXA Inactive Dritlin_o Waste Disr)osai Facility Closure Approval N'EW ENFORMATION: Should additional information concermn~ environmental conditions at the faciiitv make further actions necessary to protect human health or the environment, the Department reserves the rizht to reauire additional investigation, assessment, monitorin_v., or remediation at the facility. Mr. Steven D. TaYlor Janua~' 11. 1995 BPXA Inactive Drilling Waste Disposal Facility. Closure Approval Db"TY TO RESPOND: Notwithstanding any other provisions or reauirements of this closure approvai, z person causing or permitting the discharge of oil or other hazardous substances is recruited by law to immediately contain and' ctean-ur~ the discharge. ,.-XS 46.04.020' a6.09.0205. COMPLL~NCE WITH APPLICABLE LAWS' If amendments to this closure approval are necessarx' to meet the requirements of anv new laws or regulations, the faciiitv owner., operator must submit an application for amendment to the Department at the above address. The facility owner/operator must adhere to all applicable state statutes and regulations as the.',, ma',' be amended from time to time. If vou have any c~uestions. ~iease do not hesitate to contact Tim Law at 271-4051 of this office. Sincerely. ADEC Remonal Administrator Pipeline Corridor Region John Santora. BLM,,'J-PO Dave Lowe. BPX Anchora_~e AOGA/Anchoraue Jerrv Brossia..*DNP~,'SPCO Nancy Welch. ADNIL~'Faimanks Al Ott. ADFG/Fairbanks Glenn Miller. Dou~ Bauer. ADEC,'Juneau Jim Havnes. ADNR/Anchora_~e Keith Mueller. USFWS/Anchora=e Jessie Kaleak Sr., Mayor NSB/Barrow Pam Miller. The Wildemess Socierv,'Anchora~e Larry Landr¥. Normem Alaska Environmental Center/Fairbanks ARCO Alaska, Inc. To: David W. Johnston Date: 09/38.~i~-~'~'~--~:]4 Chairman Alaska Oil & Gas Commission ¢O~~ From: Steve Herren, Drlg Mgr Shared Services Drilling Subject: Suspended wells Compliance with regulation,~ in response to your letter dated August 15, 1994 regarding suspended wells attached are lists detailing well status and criteria for maintaining these wells in a suspended status. Plans for well inspections are in place for October 1 through October 3, 1994 as discussed with Blair Wondzell and John Spaulding. Updated reporting has been filed with the commission as listed. Yours Sincerely, Steve Herren Drilling Manager Bill Bredar Patrick Collins Jim Farnsworth Mike Miller Bruce Policky Scott Sigurdson Marian Sloan RE6EIVED ' 0CT 1 4 1994 Alaska Oil & Gas Cons. Commission Anchor~a Suspended Wells, Request to retain suspension status The following wells are listed as suspended by the AOGCC under 20 AAC 25.110. These wells are requested to remain suspended for the reason(s) as indicated. Site inspections should be conducted as soon as possible. MPA-01; 029-20376-00 79-/¢04 Potential recompletion in the Kuparuk C and/or B sand as a water injector. Decision hinges on 1994/95 development drilling results (E-13)in this area. MPB-02; 029-20662-00 81-/¢/142 This well is scheduled for initial completion in the Schrader Bluff late this year or early next year. MPA-03; 029-20891-00 83-~001 Future utility as a Schrader Bluff producer with producing utility when surface infrastructure is installed on A pad. MPN-01 B; 029-21053-02 84-0013 N-01 B is a usable well in the Schrader Bluff, with producing utility when surface infrastructure is installed on N pad. The well should be retained in a suspended status until that time. MPC-16; 029-21364-00 85-O 110 C-16 has recompletion potential in the Kuparuk "C" sand and/or the Schrader Bluff horizons. Although additional evaluation must be performed to quantify reserves and production potential, C-16 is believed to be a viable workover and/or sidetrack candidate. NWM#1; 029-22231-00 91-0145 Northwest Milne #1 should remain suspended until the Northwest Milne Point development is better defined. The wellbore is strategically located on a gravel island and may. possess utility in either production or injection operations. DNR recently certified this well as capable of production. No Point #1; 029-22450-00 94-0027 No Point #1 will be utilized in the upcoming F- Pad development. Expectations are to complete the Kuparuk "A" zone and commence production 4Q95. Niakuk ¢4, 029-21217-00 84-0200 Niakuk ¢4 is requested to remain suspended until the viability of the well for monitoring is defined. Niakuk #5, 029-21290-00 85-0027 Niakuk ¢5 should remain suspended for observation purposes at this time. Sag Delta ¢33-12-16, 029-20176-00 75-0058 Area being drained by 1994 Alapah well NK-26 (HAW). Potential use as a monitor well for this new reservoir Would have to truck oil across winter ice road if resume production Produced 186 MBO in 1985 2 month production test. Sag Delta #5, 029-20527-00 80-0129 Area being drained by L5-26 (high gas well), L5-28, and L5-36 from south to west. Well tests indicated fairly tight, but productive rock; perhaps inadequate stimulation? Costs prohibitive for eventual tie-in to L5 (? via Heald Point). Potential for gas cap monitor well Sag Delta 31-11-16, 029-20011-00 69-0014 Area being drained by L4-36, 80 Acre offset to NW. Potential for service well (water injection?) Well is capable of production, but most Lisburne in water leg and costs likely prohibitive for tie-in to L4. Sag Delta #2A, 029-20234-01 77-0069 South of Sag Delta ¢1, in water leg of Alapah oil accumulation in NK-26 well. Remote potential for pressure monitoring of Alapah offtake and the effect on the Alapah aquifer; though, costs would likely be prohibitive. Sag Delta #8, 029-20519-00 80-0121 Z-32A, 029-21924-01 93-0113 S-10A, 029-20765-01 91-0123 Sag Delta #8 should remain suspended until the development plan for the area is better defined. This well may possess utility for production or as an observation well. Z-32 was shut in due to high water production in 1992. In 1993 it was sidetracked to a new location. The oil column at the new location was .less than prognosed and was not considered economic and the well was suspended. There is oil in the area that can be reached as a new sidetrack from this well. A specific location has not yet been identified, but we wish to retain this wellbore for a future sidetrack. S-10 was sidetracked in 1992. Drilling difficulties were encountered while drilling through a fault in the Kingiak and the well was suspended. There is oil in the area that can be reached as a new sidetrack from this well. A specific location has not yet been identified, but we wish to retain this wellbore for a future sidetrack. The West Sak formation, a non unitized formation in the PBU license area, is reachable from this wellbore. Work in ongoing on a facility sharing agreement. In the case that a satisfactory agreement is reached, this wellbore could be used to access oil in this formation. Y-22A, 029-21558-01 88-0115 Y-22 was sidetracked in 1988. The sidetrack was suspended due to drilling difficulties. There is oil in the region that can be reached as a new sidetrack from this well. A location has not been worked on but we wish to retain this wellbore for a future sidetrack. U-01, 029-22244-00 92-0011 PR 33-12-13, 029-20047-00 69-01 04 There is oil in the area that can be reached as a new sidetrack from this well. A specific location has not yet been identified, but we wish to retain this wellbore for a future sidetrack. The well penetrates The West Sak and Ugnu formations in the aquifer. Work in ongoing on a facility sharing agreement with subsequent appraisal of the formations. This well could be used to test the aquifer properties. These wells are listed as suspended, action items are detailed. Ak Island #1,289-20018-00 81-0119 Alaska Island #1 was abandoned in 1988. The completion notice has been refiled with AOGCC on 9/15/94. The site is ready for inspection (priority 1 ). Niakuk #lA, 029-20156-01 76-0028 Niakuk #lA was abandoned in 1991. A sundry application requesting status change was filed with AOGCC 9/20/94. A completion notice will follow when the sundry application is approved. The site is ready for inspection (priority 1). Niakuk #2A, 029-20180-01 76-0079 Niakuk #2A was abandoned in 1991. A sundry application requesting status change was filed with AOGCC 9/20/94. A completion notice will follow when the sundry application is approved. The site is ready for inspection (priority 1). PBU H-01, 029-20099-00 71-0015 The well was drilled in 1971 and hit a down thrown fault block with only 20ft of oil bearing Ivishak. This was not economic at the time. It was left suspended without tubing. Recent success in fraccing the Sag formation indicated that it might be an economic well. A rig workover was completed in April 1994 and the well was put on production 9/94. It is not necessary to inspect this site. Kemik Unit #1,223-20006-00 70-0060 Kemik Unit #1 is scheduled to be abandoned in the near future. Abandonment planning is now in progress. Site inspection will not be necessary at this time most likely should be scheduled for Spring of 1995. P2-59, 029-22096-00 90-0140 Arco Alaska Inc. is the operator of this well, they will be addressing the question of suspension. Sag Delta #3, 029-20233-00 79-0080 Well plugged and abandoned March, 1991. Well completion notice will be refiled with the Commission. Sag Delta #4, 029-20245-00 77-0015 Well plugged and abandoned March, 1991. Well completion notice will be refiled with the Commission. The following wells are not under BP Exploration ownership. A letter requesting the owners to respond regarding their wishes for these wells was sent on 9/30/94. MP 03-10-12, 029-20483-00 80-0066 MP 33-11-12, 029-20504-00 8O-OO92 CHEV 18-11-12, 029-20511-00 80-0108 Term C 03-11 - 12, 029-20356-00 78-0102 MP 22-31-11-13, 029-20545-00 81-0010 MP 43-31-11-13, 029-20536-00 8O-O 139 MP 30-11-13, 029-20546-00 80-0152 MEMORANDUM State of Alaska Alaska Oil and Gas Conservation Commission TO: David Jo~_~ DATE: October 2, 1994 Chairman THRU: Blair Wondzell, .-~~ FILE NO: 2991jbbd.doc P. I. Supervisor ,~/~_~e John Spaulding,(~, Petroleum Insp. ~;,~z -~ ~' FROM: SUBJECT: Suspended Wells Inspectiou North Slope, Alaska ,October, 1,2&3,, 1994: I accompanied Marian Sloan BPX representative on an inspection tour of BPX suspended wells at various North Slope locations. Travel was by pickup and helicopter. Marian Sloan Informed me that BPX is drafting a program with reasons for leaving wells listed below as suspended, this program will be available to the AOGCC in the very near future Oct. 1,1994 Y-22A / PBU / PTD 88-11..5.; well head on configuration, no pressure on tubing or annulus, area very clean, well is located on a producing drillsite. S-10A / PBU / PTD 91-123; wellhead on configuration, no pressure on tubing or annulus, area clean, well is located on a producing drillsite. U-01 / PBU / PTD92-11; wellhead on configuration, no pressure on tubing or annulus, area clean, well is located on a producing drillsite. Z-32A / PBU / PTD 93-113; wellhead on configuration, no pressure on tubing, 750 psi on inner annulus, 0 pressure on outer annulus, area clean, well is located on producing drillsite. Chevron 18-11-12 / PTD 80-108; wellhead on configuration, no pressure on tubing or annulus, area clean. MP 22-31-11-13 / PTD 81-10; wellhead on configuration, no pressure on tubing or annulus, area clean, reserve pit is still open. MP 32-30-11-13 / PTD 80-152; wellhead on configuration, no pressure on tubing or annulus, area clean, reserve pit is still open. Oct. 2, 1994: A-01 / MPU / PTD 79-40; wellhead is removed with casing hanger still on, area clean, well is located on a active drillsite. A-03 / MPU / PTD 83-01; wellhead on configuration, no pressure on tubing or annulus, area clean, well is located on a active drillsite. B-02 / MPU / PTD 81-142; wellhead on configuration, no pressure on tubing or annulus, area clean, well is located on a producing drillsite, C-16 / MPU / PTD 85-116; wellhead on configuration, no pressure on tubing or annulus, area clean, well is located on a producing drillsite. N-01B / MPU / PTD 84-13; wellhead on configuration, no pressure on tubing or annulus, area clean with timbers covering the cellar area and well guard around the wellhead. No Point #1 / MPU / PTD 94-27; wellhead on configuration, area clean, unable to land helicopter to check wellhead for pressures, No Point #t is scheduled to become part of the F- pad construction at MPU. , NW Milne #1 / MPU / PTD 91-145; wellhead on configuration, area clean, island is suffering from severe-erosion on the North side. Oct..3, 1994: Sa.q Delta 31-11-16 / PTD 69-14; wellhead on configuration, area clean, has wooden location marker, no pressure on tubing or annulus. Sag. Delta #3 / PTD 76-80; wellhead on configuration, area clean no pressure on tubing or annulus. Sag Delta ~ / PTD 77-15; wellhead on configuration, area clean, no pressures on tubing or annulus. Sag Delta #2A/ PTD 77-69; wellhead on configuration, no pressures on tubing or annulus, timbers and cellar box material, reserve pit open. Sag Delta #5 / PTD 80-129;. no wellhead; bell shaped affair was covering the supposed well surface location, area clean. Sa,q Delta #8 / PTD 80-121; wellhead on configuration, timbers and well guard, island is eroding. Alaska Island #1 / PTD 81-119;. unable to land, area appeared clean from the air, marker post visible on South side of island. Niakuk #4 / PTD 84-200; wellhead on configuration, concrete river weights, cellars open, island eroding. Niakuk #5 / PTD 85-27; wellhead on configuration, concrete river weights, cellars open, island eroding. Location Clearances; Niakuk #lA / PTD 76-28; area is clean, no visible marker post, island is eroding as planned. (;~liakuk #2A / PTD 76,79;...area -is-clean;-no-visible-marker-post; .island.-is-eroding as planned. I recommend that the AOGCC consider Niakuk lA & 2A for final abandonment and location clearance. , Summary,: I inspected locations of 28 BPX suspended wells. I also inspected 2 wells for final abandonment and location clearances. ALASKA OIL AND GAS CONSERVATION COMMISSION WALTER J. HICKEL, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 TELECOPY: (907) 276-7542 August 15, 1994 Steve Horton, Drlg Mgr BP Exploration (Alaska) Inc P O Box 196612 (MB12-1) Anchorage, AK 99519-6612 Re: Suspended Wells Compliance with regulations Dear Mr. Horton: BP Exploration and the predecessor Sohio companies have several suspended wells as shown on the attached lists: BP SUSPENDED WELLS PRIOR TO 1980 and BP SUSPENDED WELLS SINCE 1980. The applicable regulation is as follows: 20 AAC 25.110 SUSPENDED WELLS (a) Upon application by the operator under 20 AAC 25.105(e), the commission, will, in its discretion, approve the suspension of a well if the well (1) encounters hydrocarbons of sufficient quality and quantity to indicate the well is capable of producing in paying quantities as reasonably demonstrated by well tests or interpretive formation evaluation data; or (2) is reasonably demonstrated to have future value as a service well. For each well on the attached lists of suspended wells, please provide data showing that the well meets the criteria of (1) or (2) above, or advise as to your plans to abandon the well. Wells that meet the criteria of (a) above that you wish to maintain as suspended, as r~qui.r~by 20 AAC 25.110(e), must have well site inspections ~is ye~~l,~6~tO snow covering the locations. lncerel , ~" , ...................... Dav~.d W. I,~ohnston ~ Attachments c: Blair Wondzell bew/llbp3usp 8115/94 PERMIT 79-0040-0 80-0066-0 80-0092-0 80-0108-0 80-0121-0 80-0129-0 80-0139-0 80-0152-0 81-0010-0 81-0119-0 81-0142-0 83-0001-0 84-0013-0 84-0200-0 85-0027-0 85-0110-0 88-0115-0 90-0140-0 91-0123-0 91-0145-0 92-0011-0 93-0113-0 94-0027-0 API NUMBER 029-20376-00 029-20483-00 029-20504-00 029-20511-00 029-20519-00 029-20527-00 029-20536-00 029-20546-00 029-20545-00 089-20018-00 029-20662-00 029-20891-00 029-21053-02 029-21217-00 029-21290-00 029-21364-00 029-21558-01 029-22096-00 029-20765-01 029-22231-00 029-22244-00 029-21924-01 029-22450-00 BP SUSPENDED WELLS SINCE 1980 AUGUST 1994 WELL WELL WELL NAME CLASS STATUS MILNE POINT UNIT A-01 EXP SUSP PRLrDHOE BAY UNIT 3-10-12 DEV SUSP PBU MP 11-33-11-12 i DEV SUSP PRUDHOE BAY UNIT TR 18-11-12 DEV SUSP SAG DELTA 8 EXP SUSP SAG DELTA 5 EXP SUSP PRUDHOE BAY UNIT 31-11-13 DEV SUSP PBU MP 32-30-11-13 1 DEV SUSP PBU MP 22-31-11-13 2 DEV SUSP ALASKA ISLAND i EXP SUSP MILNE POINT UNIT S-02 BEV SUSP MILNE POINT UNIT k-03 DEV SUSP MILNE POINT UNIT N-01B DEV SUSP NIAKUK 4 EXP SUSP NIAKUK 5 EXP SUSP MILNE POINT UNIT C-16 DEV SUSP PRKIDHOE BaY LTNIT Y-22A BEV SUSP PT MCINTYRE' P2-59 EXP SUSP PRUDHOE BaY I/NIT S-10A DEV SUSP NORTHWEST MILNE 1 EXP SUSP PRUDHOE BaY UNIT U-01 DEV SUSP PRUDHOE BaY UTqIT Z-32A DEV SUSP NO POINT 1 DEV SUSP STATUS DATE 4/15/8o lO/lm/8o 4/29/81 12/24/8o 4115181 4113181 2/2o/81 i/is/si 2/14/81 6/08/82 5/27/82 12/10/83 4/27/84 2/17/85 4/18/85 lO/27/93 lO/29/88 12/22/9o 11/o6/91 3/30/92 3/16/92 8/31/93 4/08/94 SECT 23 33 33 07 27 36 0S 3O 3O 11 19 23 3O 25 25 10 33 14 35 25 18 19 06 TWP 13N 11N 11N 11N 12N 12N 10N llN llN 10N 13N 13N 13N 12N 12N 13N llN 12N 12N 14N 11N 11N 13N 010E 012E 012E 012E 016E 015E 013E 013E 013E 022E 011E 010E 010E 01SE 015E 010E 013E 014E 012E 009E 013E 012E 010E PAGE MER U U U U U U U U U U U U U U U U U U U U U U U 81!5/94 PERMIT 69-0014-0 69-0104-0 70-0060-0 71-0015-0 75-0058-0 76-0028-0 76-0079-0 76-0080-0 77-0015-0 77-0069-0 78-0102-0 API NUMBER 029-20011-00 029-20047-00 223-20006-00 029-20099-00 029-20176-00 029-20156-01 029-20180-01 029-20233-00 029-20245-00 029-20234-01 029-20356-00 BP SUSPENDED WELLS PRIOR TO 1980 AUGUST 1994 WELL WELL WELL NAME CLASS STATUS SAG DELTA 31-11-16 EXP SUSP PRUDHOE BaY UIqIT 33-12-13 DEV SUSP KEMIK UI~IT I DEV SUSP PRUDHOE BaY UNIT H-01 DEV SUSP SAG DELTA 33-12-16 EXP SUSP NIAKUK 1-A EXP SUSP NIAKUK 2-a EXP SUSP SAG DELTA 3 EXP SUSP SAG DELTA 34633 4 EXP SUSP SAG DELTA 28337 2-a EXP SUSP PRUDHOE BaY LTNIT TER~ C DEV SUSP STATUS DATE 4/28/69 12/20/69 6/17/72 6/22/71 4/28/76 4/30/76 3/30/77 3/23/77 3/22/78 12/27/77 4/25/79 SECT 31 33 17 21 O4 26 26 35 35 10 O3 TWP 11N 12N 01N 11N 11N 12N 12N 12N 12N 11N 11N RNG 016E 013E 020E 013E 016E 015E 015E 016E 016E 016E 012E PAGE MER U U U U U U U U U U U BP EXPLORATION BP Exploration (Alaska) Inc. 900 East Benson Boulevard Re. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 October 8, 1991 Gwen Thompson Alaska Oil and Gas Conservation Commission ~ 3001 Porcupine Anchorage, AK 99501 .~.¢ ' f' ~ ~' Dear Ms. Thompson~/ Attached are two (~j'copies each of the Routine Core Analysis Reports for Niakuk Wells #4,~5, and #6.:......~ ,,.1.- :). ? ~} Please call me at 5~'4-57{]9 if you have any questions regarding this data. Thank you, W. L. Bredar attachments .,,. ,t.' DEPT. OF NATURAL RESOURCES DIVISION OF OIL AND GAS September 13, 1991 David W. Johnston, Commissioner Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-3192 Subject: Release of data from the Niakuk #4, #5, and #6 wells WALTER d. HICKEL, GOVERNOR RO. BOX 107034 ANCHORAGE, ALASKA ~'510'7034 ,-~ ~-! PHONE:(907) 762-2553 , · , , (907)762-2547' .... '"' ::"~"'::' ' C' --. ~:" N ' ."". ' E.. ;,i t3 .,c~: 3 ST Dear Commissioner Johnston: I granted extended confidentiality for the Niakuk #4, #5, and #6 wells until 90 days after the unleased land in OCS Block 608 was offered for lease. This unleased land was offered for lease in Federal OCS Sale 124 which was held on June 25, 1991. Therefore, these wells no longer qualify for extended confidentiality and the well data should be released on September 24, 1991. By copy of this letter I am notifying BP Exploration (Alaska) Inc. of the upcoming release of the Niakuk #4, #5, and #6 wells. Sincerely, .,t~l~mes E. Eason . Director cc: Eric Luttrell, Vice President of Exploration, BP Exploration (Alaska) Inc. RECEIVED $ E P 1 ? 1991 Alaska Oil & Gas Cons. Commissi~)n Anchorage ~x~) p, riute,:J on, ~'ecvc:led paper I)I~I)AItTMI~NT (II, N.~NkTUI~AL Ri~SOURCi~S DIVISION OF OIL AND GAS April 4, 1988 T. J. Obeney Manager, Niakuk Standard Alaska Production Company P.O. Box 196612 Anchorage, Alaska 99519-6612 Subject' Request for Extended Confidentiality Standard Niakuk #4 and #5 Wells Dear ~1r. Obeney' STEVE COWPER, GOVE.h.-.-.-.-.-.-.-.-~.?~ ' po ~ox 7o3~ '~-'?;~ ,:.'.','::.,--,.~ , . /~ . .' ~,:.;\.,~.. ANCHORAGE, ALASKA 99[ t~;;~0BA,;...;.~c~ ; ~-~,.. -. , ;ls, .- In your March 3, 1988 letter you requested that the confidentiality of the data from the Niakuk #4 and #5 Wells be extended beyond the original extension of "until 90 days after (federal) Sale 97." The confidentiality period for the data from these wells was originally extended on February 2, 1987. At that time, the nearby unleased land, Block 608 (protraction diagram NR6-3, Beechy Pt.) was scheduled to be offered for lease in Sale 97. Block 608, portions of which are in dispute between the State of Alaska and the United States, was not offered for lease in Sale 97 and, therefore, remains unleased. Block 608 will probably be offered for lease again in the next federal Beaufort Sea lease sale (Sale 124), currently scheduled for February 1991. If the state receives title to the disputed portions, of Block 608, it is possible that those lands may be offered earlier than February 1991 in a state lease sale. Following your request for a further extension of confidentiality, data review, and in recognition of the fact that Block 608 remains unleased, I agree to grant a further extension of confidentiality for the data from the Standard Niakuk #~ and #5 wells until the acreage in Block 608 is offered for lease. By copy of this letter I am asking the Alaska Oil and Gas Conservation Commission (AOGCC) to extend the period of confidentiality for data from the Stan'dard Niakuk #4 and #5 wells until further notice. ' Si nc'erely, Eason ~Di rector C.V. Chatterton, AOGCC 0452c RECEIVED Alaska 0il & Gas Cons, ~ ~a~ .... ALASK~ OIL AND GAS CONSERVATION CO ~,,,,.,~ON APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon ~ Suspend Operation Shutdown [] Re-enter suspended well [] Alter casing Time extension EX Change approved program E3 Plugging [] Stimulate [] Pull tubing [] Amend order [] Perforate [] Other E3 2. Name of Operator 5. Datum elevation (DF or KB) feet .q~-~r~,-~ ~1~_~ Prod:,ct~_on Com~_~y ~. - 37 (~ 3. Address 6. Unit or Property name P. O. Box 196612, Anchoraae, Alaska 99519-6612 Prudhoe Bay Unit -- 4. Location of well at surface 7. Well number 3524' NSL, 144' WEL, Sec. 25, T12N, R15E, UM Niakuk #4 (42-25-12-15) At top of productive interval 8. Permit number 84-200 At effective depth 9. APl number 50429-21217 At total depth 10. Pool 3625' NSL, 130' WEL, Sec. 25, T12N, R15E, UM Wildcat (Exploration) 11. Present well condition summary Total depth: measured 10300 feet Plugs (measured) true vertical 10300 feet 9-5/8" casing cleaned out to 10254'MD Effective depth: measured 10254 feet 9-5/8" EZ drill plug 2210'lviD topped true vertical 10254 feet with 50 ft. cement plug. Top at 2160'ND Casing Length Size Cemented Measured depth True Vertical depth Structural 30" 460 cu.ft. Permafrost B 120'BKB Conductor 20 20" 4655 cu. ft. Permafrost B 1703'BKB Surface 13-3/8" 2530 cu. ft. Class G +330 cu. ft. Perma.. B 5028'BKB Intermediate 9-5/8" 1584 cu. ft. Class G +130 cu. ft. Perma. 10296'BKB , Production Liner Perforation depth: measured None Request extension under 20 AAC 25.17~'~,~,,~, true vertical Reason for extension: This suspended well is Tubing (size, grade and measured depth) being considered for future use as a Niakuk development water injection/observation well. None : " .... '" : "~ , Packers and SSSV (type and measured depth) .: .' ' ~...' ..!'.i ..' None 12.Attachments Description summary of, cp~ro~o~a~ ~,~, D~et&'[l~d,~qpgra~¢iqns program [] BOP sketch [] ~--~ ~ ~-, . ~, .. ,~, 13. Estimated date for commencing operation %~ %~ ~) ,:%.,{ ¢~ ~;~,,' ~.~=~ ~ ,~ ,,. ,,~ .'.~ .~ 14. If proposal was verbally approved ' ~'~ ~ .... Name of approver Date approved 15. I hereby certify that the foregoing is true and correct to the best of my knowledge Commission Use Only Conditions of approval Notify commission so representative may witness I Approval No. [] Plug integrity [] BOP Test [] Location clearanceI ~-.~-~ ,~i'tur~0~¥ by orde.r of Approved by i]~' t~t[ ~. 'S~l~rj~ ~~__~.,.,. Commissioner the commission Date ¢¢ Form 10-403 Rev 12-1-85 Submit i~ triplicate MEMORA "3UM Sta%'- of Alaska ALAS ' JIL AND GAS CONSERVATION C .~ISSION TO: James E. Eason, Director DATE: DNR Division of Oil & Gas FI LE NO.: February 10, 1987 F.WWB.18 THRU: TELEPHONE NO.' FROM- W. W. Barnwell~'~i' C ommis s ioner SUBJECT: Extended Confidentiality - Standard Alaska Production Company Niakuk #4 & Niakuk ~5 Pursuant to your February 2, 1987 letter to Alan Davies, cc to C.V. Chatterton and 20 AAC 25.537(d), AOGCC has extended the confi- dentiality of data from the subject wells until further notice. For your information, enclosed is a list of the wells AOGCC currently holds in extended confidentiality. Enclosure -001 A(Rev 10-84) DEPARTMENT OF NATURAL RESOURCES · DIVISION OF OIL AND GAS February 2, 1987 Mr. Alan Davies Manager, Joint Ventures Standard Alaska Production Company P.O. Box 196612 Anchorage, AK 99519 Subject: Request for Extended Confidentiality Niakuk #4 and #5 Wells STEVE COWPER, GOVERNOR RO. BOX 7034 ANCHORAGE, ALASKA 99510-7034 Dear Mr. Davies: In your January xl~etter.you requested that the well information from the Standard Alaskaf~Niakuk #4 )and Nlakuk #5 wells be held confidential until after Federal OCS Sale~ from these Wells are scheduled to be released on March 19, 1987 and May 18, 1987, respectively. The Niakuk #4 and Niakuk #5 wells are situated approximately 2.5 and 3 miles, respectively, from unleased land described in the federal protraction system as Block 608 (Protraction Diagram Beechy Pt. NR 6-3). Title to Block 608 remains in dispute between the State of Alaska and the United States. In your letter you referred to this block as former tract OCS Y-0189, and you correctly indicated that the lease on this federally-managed tract had been relinquished. The tract may be reoffered in. OCS Sale 97 pending agreement of the state and Minerals Management Service as to the terms and conditions of reoffering the tract. It is also possible that the state may gain title to the tract if and when the .dispute is settled. ,, Under ll AAC 83.153, if. the commissioner finds that reports or information required under AS 31.05.035(a) contain significant information relating to the valuation of unleased land within a three-mile radius of the well, the commissioner will, upon the written request of the owner of the well, keep the reports or information confidential. Mr. A1 an Davies February 2, t987' Page 2 Following your request for extended confidentiality, a review of the data was.. made by technical staff within the division. Based upon their recommendation and under the departmental delegation of authority, I agree to extend the confidentiality of the Standard Alaska Niakuk #4 and Niakuk #5 wells until 90 days after Sale 97 is conducted. By copy of this letter I am asking the Alaska Oil and Gas conservation Commission (AOGCC) to extend the confidentiality of data from the Standard Alaska Niakuk #4 and Niakuk #5 wells until further notice. Sincerely, Eason Director · b~cc: C.V. Chatterton, Commissioner, AOGCC 0383c Standard Alaska Production Compaq' 900 East Benson Bo~l~ j P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 564.5111 Ms. Judy Brady, Commissioner Department of Natural Resources State of Alaska P.O. Box M Juneau, AK 99811 Dear Commissioner Brady' The 24~mon.~_peac.tc~ of confidentiality for well information from Standard's~N~akuk,,~4~}and Niakuk #5 wells expires on 3/15/87 and 4/17/87, "resPeCtiVe~'y. Standard ~equests that the data submitted to the State of Alaska.regarding these wells be held confidential until after Federal OCS Sale //97. Vie make this request pursuant to 20 AAC 25.537(d). Nia. kuk wells #4 and //5 are located on State of Alaska lands in ADL #34630 and ADL //34635, within three miles of former tract OCS Y-0189, leased by Union and Exxon in the 1979 Beaufort Sea Sale and relinquished in 1985 (see attachments). This tract, is currently unleased and may be offered in the upcoming OCS Sale //97 (see attachments). Information from Niakuk //4 and #5 comprises stratigraphic and structural data we consider significant to the valuation of this tract and to the upcoming federal sale. Should you have any questions regarding our request, please call Debra Hargus at (907) 564-4728. DLH 'deh ll61h Attachments Very truly yours, A1 an Davies, Manager CO~~,: ! !~I i~ ~ ~ ~'~.~ ~ ~'~ Jcl n t Ventures cc' Mr. C. V. Chatterton, Alaska Oil and Gas Conservation Commission Mr. 2ames Eason, Division of Oil and Gas J. Dickey ECEIVED M. Marfleet A unit of the original Standard Oil Company Founded in Cleveland, Ohio, in 1870 .Alaska Oil & Gas Cons. Comm~ssmrx 43107 7-3 I- 92 ADL -3,43108 ,~ WAGNER.et al · '%' e1-:30-95 "~ ADL -365550 CITIES ~ ------ ~ ~ SERVICE PAE ~ ~ - ~ 5549 j RCn-EXX('N { SAPC.~ ' HBP '" ~ I", hJ P 1% i... ADL-34.~Z5 ADL- 312813 _jl-J Mz~RATHON AMERADA e,,,,' I - ~:) - 90 (b' HBP /Viq~'UK ,,kOL-34626 I RCO-~ON SOHIO ~ SAPC ~CO ~AKUK-I 0L-34629 j HBP - 'ms,-, CO~XXON I SAPC SAPC A /\ \ \ IIlI mill mlI, I - 31- 9V 12-31-89 -y ADL-312814 ADL-31281 AMERADA- HESS I - :51-90 ~'~ ADL-312821 / ARCO ~ /- EXXON EXXON~-- -~ UNION ~ I -31-9~ ARCO 6 -30-90 Y-OI90 x ADL- 3128; &¥?.%,,, ~ Exxor COOK INET '~"~' - "~. DOYON ' ' ......l,J NANA ~%~-3~ARCO/,,ocs_c~ SAPC _,[ .sC)oH,: ~',tOI91 HBR t I -31 -9 ' , 312828 SAPC IAMOCO."UNION .-. I I ~X:~ON EXXON~ i/r ', Duck Is.UrlJ t ',',,. ~! ADL-Ze,20 J ~, . / -' ",,' '-i "" O: X ;; J "' C X SAPC ~C,d'-EXXON [~ ,, .,' II 11N-R15E JL~J~'~ T11N er A f ' ' *'~ "'</"/'[' A , j~',i , '",._~/-' I , i '~'~-~"~7,'>- ~" .~,, ii; ;'-.'.::~. ~'"'.~;;: ;:...':': :..: . RCO-EXXON t ARCO-EX'XON p' sbc:~PC ~ii';'..!:=:(:i ;'=, :E:~, .... m;ui ,. HBP .,.~' ~,-,HB2/.,' ,-* { ~;~BP / : AOL ', t 'J' ~," / ~ ...... ~ *~' ~ . ~"'~,' I/ZO ~ ' '~ ~ ~ ~ t; ............' - ~ ' , IA,co ..,',~1%"; 4-o''.' <?-,s .C, · -,, o · q.Alasxa ~11 & ~i~$ ODDS. UOIlli'fi~S~OI3 ~6 ~/ / I ' * ' ~, ARCO-EXX~ ARCO~XON '-~op.{., ~-' f~. -P' ..o, <~, .e~-,, ~ ~ ~ / ~" i '/~-a4~ ', ' . ~ --,~ ,,co , , ~ ' ,'. ~'.-' , : 'q '.. ~ { ~ .... : o~,r, s~o, , ' ''~(- %. HBR , ~ no. I HBP ,o.~oc"~ ,J ----- Ch.,OPS Action Union Oil Company of California Oil and Gas OCS-Y-0189 Relinquishment Accepted On December 26, 1985, documents were received in this office whereby Union Oil Company of California, as sole lessee, is relinquishing in entirety, interest in lease OCS-Y-0189 in the Beaufort Sea. This lease was issued with an effective date of July 1, 1980, as a result of Sale BF, held on December 11, 1979. Surrender of a lease shall not relieve the lessee or its surety of the obligation to abandon all wells, including submission of all required reports and data, in a manner satisfactory to the Director. This relinquishment is accepted, the case file closed, and the records so noted, effective December 26, 1985. original signed by Alan D. Powe~ Regional Director bcc: RS, FO LE File LA File Author RD Chron Cartographics Legal File (-0189) Minerals Management Service Royalty Management Program Attn: Lease Administration Sec. (FAD/RDB/LA) P.O. Box 25165 (MS 652) Denver, CO 80225 JONES:wsj:2/24/86:disk:actl:doc:Relinquishment/0189 4310-HR UNITED STATES DEPARTMENT OF THE INTERIOR HINERALS MANAGEMENT SERVICE Diapir Field Lease Sale g7 Call for Information and Notice of Intent to Prepare an Environmental Impact Statement CALL FOR INFORMATION Purpose of Call for InformatiOn The purpose of the Call is to assist the Secretary of the Interior in carrying out his responsibilities under the Outer Continental Shelf Lands Act (OCSLA) {43 U.$.C. 1331-1343), as amended {g2 Stat. 629), and regulations appearing at 30 CFR 256.23, with regard to proposed OCS Lease Sale 97 in the Diaper Field area tentatively scheduled for December 198q. This initial information gathering step is important for ensuKin~ that all interests and concerns are con~unicated to the Department of the Interior (DOI) for future decision points in the leasing process. It should be recognized that this Notice does not indtca'te a preliminary decision to lease in the area described below. Information submitted in response to this Call will be used for. several purposes. First, responses will be used to identify the areas of potential for oil and gas development. Second, con~nents on possible environmental effects and use conflicts will be used in the analysis of environmental conditions in and near the Call area. Together these two considerations will allow a preliminary determination of the potential advantages and disadvantages of oil and gas exploration and develo~nent to the region and the Nation. Thus, it may be possible to make key decisions in connection with the next step in the planning process--Area Identification--to resolve conflicts .by deleting areas where there is sufficient information to Justify that action. However, the Area Identification represents qnly a preliminary step to select the area to be analyzed in the environmental impact statement {EIS). The Area Identifi- cation is scheduled for January 1985. A third purpose for this Notice is to use the con~nents collected to initiate scoping of the EIS, which will include public meetings, and to identify and analyze alternatives to the proposed action. A Notice of Intent is located later in this document. Fourth, co~nts n~y be used in developing lease terms and conditions-to assure safe offshore operatioos. Fifth, con~nents may be used in understanding and considering ways to avoid or mitigate potential conflicts between offshore oil and gas activities and the Alaska Coastal Management Program (ACMP). Oescrtptton of Area The Otaptr FimI( Call area:is generally in the Beau¢ort:sea'~!and:the.~.ArcttcjOcean..'?:.B~lnntng~:-~heYFi~lei~l/$tli~ 3-geograPhtcal~mrll~'ll~:whtch ~epre~e~t~ ~he eXtends ~ about:, z20~imilleS ~rth up~-td~-73*~ ~est'by 162' ¥;:'longitudt~ and extehds dlctton; The Call area Includes approximately 1,700 blocks whtch were deferred from offertng ~or lease at Sale 87 held on August 22, ]g84. The deferred area was comprised, tn part, of blocks west of Potnt Barrow which were removed to reduce the potential for confllct wtth subsistence resources. Blocks wtthtn a 20-mtle radtus of Potnt Barrow were deferred to further reduce the potential for confltct wtth subsistence activities and resources. Co~enters are asked to reexamine the areas deferred at Sale 87 and to provtde thetr views as to whether these areas should be given further consideration or should be deleted from Sale 97 at the Area Identification stage. An~ new Information as to resource potential, technoloe_y, subsistence use and resources, 1ce, etc., relevant to the area deferred at Sale 87 would be most useful. The DOt has held three Federal offshore otl and gas lease sales tn the Beaufort Sea/Otaptr Fteld area. The ftrst Federal offshore sale In the Beaufort Sea was conducted ~otntly with the State of Alaska. This sale, the dotnt' Federal/State Beaufort Sea 0tl and Gas Lease Sale (BF), was held Oecember IZ, Zg7g, and offered a combined'total of approximately 5]4,202 acres of State and Federal offshore lands. Of the 46 federallymanaged tracts offered, 26 recetved btds. One htgh btd was rejected for Insufficiency, and 24 leases were tssued on 4 Federal tracts and 20 federa11~ managed disputed tracts. Of the 7! State managed tracts offered, 67 were State tracts and 4 were State managed dtsputed tracts, of whtch 62 recetved btds. The State tssued leases for all 62 tracts Including the & State managed dtsputed tracts. The second Federal offshore sale tn the Dtaptr Fteld, Sale 7], vas held on October ]3, ]982. The Sale 7! area was comprised of approximately ].8 mtlllon acres and tncluded blbcks previously offered tn Sale BF. Of the 338 tracts offered, ]25 recetved bids. A total of 121 tracts containing approximately 662,860 acres were leased. The most recent sale tn the 0taptr Fteld was Sale 87, held on August 22, 1984. The Sale 87 area tncluded 1,474 blocks covertng about 7.8 mtlllon acres. High btds were recetved on 232 blocks totalling $877 mt111on. All leases resulting from these sales provtde for a lO-year primary lease term. To date four exploratory wells have been drilled on federally managed leases from Sale 6F in the Beaufort Sea. Two of these wells have been permanently abandoned and two wells have been temporarily abandoned. In addition, Shell ~estern E & P Inc. has announced a discovery with a dtrecttonally drtlled well into a federally managed lease from a gravel tsland on a State lease. The well, which has been temporarily abandoned, is reported to have tested up to 6,0OO barrels of oll per day. One well has been drtlled on a lease issued in Sale 71. The. following ltst'tdenttftes the Offtctal Protraction-Dt~g~ams. whtch the Cali~area; The'diagrams may be purchased for $2.00 each from the Regional Supervisor,. Leasing and Environment, Alaska OCS Region, at the address stated under 'Instructions on Call,' below. NS 4-7. -- NS 4-8 NS 5-7 -- NS 5-8 o- NS 6-7 Laurentian Basin NS 6-8 Beaufort Basin NS 7-7 Beaufort Terrace ~R 4-1 -- NR 4-2 Barrow WR 5-1 Dease Inlet NR 5-3 Teshekpuk NR 5-4 Harrison Bay NR 6-I NR 6-2 NR 6-3 Beechey Point HR 6-4 FlaxJnan Island NR 7-1 -- NR 7-2 -- NR 7-3 Barter Island NR 7-4 --' HR 7-5 Demarcation Point NR 7-6 -- Instructions on Call Approved Approved Approved Approved Appro'ved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved Approved April 25, 1978), all Federal blocks January gl, 1981), all Federal blocks April 25, 1978), all Federal blocks danuary 21, 1981), all Federal blocks April 25, 1978), all Federal blocks January 21, 1981). all Federal blocks March 17, 1982), all Federal blocks October 12, 1977), all Federal blocks February 16, 19B4), all Federal blocks June 3, 1976), all Federal blocks May 5, 1976), all Federal blocks dune 3, 1976), all Federal blocks Hay 13, 19B2)' all Federal blocks June 3, 1976)' all Federal blocks Hay 5, 1976), all Federal blocks ' April 23, 1984), all Federal blocks~ Novel,)er 10, ~983), all Federal b)ocks' October 26, 1979), all Federal blocks January 22, 1984), all Federal blocks October 26 1979), all Federal blocks danuary 22: 1984), all Federal blocks Wovent)er 10, 1983), all Federal blocks January 22, 1984). all Federal blocks The standard Call map delineates the Call area and shows the area as identi- fied by the Minerals Management Service (H~IS) as having potential for the discovery of accumulations of 0il and gas. Respondents are requested to indicate interest in and coment on any or all of the Federal acreage within the boundaries of the Call area that they wish to have included in the Otapir Field Lease Sale 97. Boundaries of the Call area are shown, in genera'l, on the map at the end of this Call and are shown in detail on the standard Call for Information Hap available free fr~ the Regional Supervisor, Leasing and Envirormmnt, Alaska OCS Regt .on, H~LS, P.O. Box lOllSg, 6gO East 10th Avenue, A~chorage, Alaska gg510, telephone {907) 261-2452 or 261-2414. Although individual indications of interest are considered to be privileged and pro- prietary information, the names of persons or entities indicating interest or submitting coewents will be of public record. Those indicating such interest are required to do $o on the standard Call for Information Map. Interest should be shown by outlining the area(s) of interest along block lines. Respondents should rank areas t.n which they have expressed tnte.rest according to priority of their interest (e.g., priority ! (high), ~, or 3). If there are areas within the Call area for which respondents have no interest, no priority should be assigned tO ~them. Areas where interest ha's been indicated but on which respondents have not~tndi~dated priorities will be considered priority 3. The telephone numbe~ and name of a person to contact in the respondent's organization for additional tnformtton should be Included. Informtton concerning both location and priority of interest submitted by individual companies will be held proprteta~ and will be used as a criterion · in determining the area to be analyzed in the EIS. In addition to indications of interest b~ respondents, further consideration of areas for analysis in the ElS will be based on hydrocarbon potential, and environmental, economic, and · ulttple use considerations. Comnents are also sought from all interested parties about particular geolo- gical, environmental, biological, archeologtcal, or socioeconomic conditions or conflicts, or other information which might bear upon the potential leasing and development of particular areas. Coements are also sought on possible conflicts between future OCS otl and gas activities that may result from the proposed sale and the ACMP. If possible, these co~ments should identify specific ACMP policies of concern, the nature of the confltct foreseen, and steps that the MMS could take to avoid or mtttgate the potential conflict. Coments may either be in terms of broad areas or restricted.to particular blocks of concern. Those submitting commnts are requested to outline the subject area on the standard Call map. Indications of interest and comnents must be received no later than 45 days following'publication of this document in the Federal Register in enve.~i)pes labeled 'Indications' of Interest for Leasing for the Call for Information for Otaptr Field Lease Sale 97' or 'Co~ments on the Call for Information for the Otapir Field Lease Sale 97,' as appropriate. The original standard Call map and indications of interest and/or comnents must be submitted to the Regional Supervisor, Leasing and Environment, Alaska OCS Region, at the address stated above under 'Instructions on Call.' Two copies of the standard Call map showing interest and any comnents should also be sent to the Chief, Offshore Leasing Management Division, lqMS, Mat1 Stop 645, X2203 Sunrise Valley Drive, Reston, Virginia ~209~. Hand deliveries in the Washington, D.C., area may be made to the Chief, Offshore Leasing ~nagement Division, Room 2523, Department of the Interior, 18th and C Sis., N.W., Washington, O.C. 20240. Tentative Schedule Final delineation of the area for possible leasing will be made at a later date only after compliance with established departdrental procedures, all requirements of the National Environmental Policy Act of lg6g (40 CFR 1501.7), and the OCSLA, as amended. A final Notice of Sale will be published in the Federal Register detailing areas to be offered for competitive bidding, stating the terms and conditions for leasing, and announcing the location, date, and'time bids will be received and openad. The following is a list of tentative milestones which will 'precede this.sale, proposed for lg8&. :Con~mnts due on the Call: November lg84 Area Identification:' danuary 1985 Scoptng comnents due: Februa~ 1985 204 205 206 207 C 'T I 208 C ,.*52 294 295 ~ 206 ~o 336 337 ..½ 3/'. 339 3,10 · -.' .~;' t.) 2092 ! C 253 254 4- · 255 ? 299 ~ -r 3.1 -~ O 300 ~ 2~3 C . °° 3,:5 E A N 219 22 26 .'q 2 - v = 7 83S 380 38 ~ 382 383 384 ]85 386 388 389 390 %9' )~? 393 ~94 395 33 424 425 426 427 428 429 430 43t B :E A U ,' = 7 828 805, 470 47 I 472 473 474 475 · ,.,. + $1 $~6 )si: $19' . + M~l~ay · Islands 560 562 / Prudhoe Bay · . 432 F 476 65; 433 O 609 R . .. 434 478 ,435 T 479 436 437 438 439 -4 5 E A 523 524 824 000 . __ 525 526 S27 52 + + Y~7 819 200 568 569 ' 570 $?I ~ ¥-7 814 4W 61 614 615 61 701 / 659 '0~ & Gcs ,;,.0r, s,. 0UNt~ED::, STATES DEPARTM~N~ ;,'OE'"THE 'INTERIOR BUREAU OF LAND~;I~XG~M~E,N[,:- ..... : ,,:,,':="~ ;;~ OUTER CONTINENTAL SHELF OFFICIAL PROTRACTION DIAGRA~ Stockton 792-" ~¢ STATE OF ALASKA { ADL 34630 ALAUr~A OIL AND GAS CONSERVATION COr~l~v,,oSION APPLICATION FOR SUNDRY APPROVALS 1. Type of Request: Abandon ' Suspend ' Operation Shutdown i} Re-enter suspended well ~-' Alter casing :' Time extension iX Change approved program~ Plugging ;-~ Stimulate '] Pull tubing ':] Amend order ',] Perforate'' Other :" 2. Name of Operator 5. Datum elevation (DF or KB) 1 Standard Alaska Production Company 3. Address P. O. Box 196612, Anchorage, Alaska 4. Location of well at surface 3524' NSL, 144' NEL, Sec. 25, At top of productive interval At effective depth 99519-6612 T12N, R15E, UM A~p~I'd~°~L, 130' NEL, Sec. 25, TI2N, R15E, UN KBE : 37.9 AGL feet 6. Unit or Property name Prudhoe Bay Unit 7'~'/~ ~1~ t~ m~z~ r (42-25-12-1 5) 8. Permit number 84-200 9 APl r ~o_Or~-~el 217 10. Pool Ni ldcat (Exploration) 11. Present well condition summary Total depth: measured true vertical Effective depth: measured true vertical 10300 10300 feet feet 10254 feet 10254 feet Plugs (measured) 9-5/8" casing cleaned out to 10254'MD 9-5/8" EZ drill plug 2210'MD topped with 50 ft. cement plug. Top at 2160'MD Casing Length Structural 20 Conductor Surface Intermediate Production Liner Perforation depth: measured None true vertical Size 30" 20" 13-3/8" 9-5/8" Tubing (size, grade and measured depth) None Packers and SSSV (type and measured depth) None Cemented Measured depth ~ue Vertical depth 460 cu.ft. Permafrost B 120'BKB 4655 cu.ft. Permafrost B 1703'BKB 2530 cu.ft. Class G +330 cu. ft. Perma. B 5028'BKB 1584 cu.ft. Class G +130 cu. ft. Perma. 10296'BKB Request extension under 20 AAC 25.170(b) 1,2,3,4 Reason for extension: This suspended well is being considered for future use as a Niakuk development water injection/observation well.' 12.Attachments Description summary of proposal [] Detailed operations program _[7} BOP sketch ~.1 13. Estimated date for commencing operation 14. If proposal was verbally approved i' '. ~ i ,L.., Name of approver ,. ..... , .,..~ ~,.;'..,:'.::D~t'~"~ approved ,~ "'r-f,' ~.i,F~I""" ,.~ ~,t . ,,~. ",.,,,.."' .... 15. I hereby certify that the foregoing is true and correct te'~II~:e b~e~Jt ~f...,'..~y'.:.;gnowledge Signed _k~F'~ '~:). ~. ~k.,0..,0._¢~-~ Title Division Drilling Engineer Commission Use Only Conditions of approval Notify commission so representative may witness [-_'~ P. ug ntegr ty L~ BOP Test [3 Location clearance[ ' . ;,, ~', - .' ~', : "'" ~ '""~ ' ~ ' ' '. ~ ....... ~ ~ 't; ~:';"~"' :¢ ~':, , ~ .',',, ":,,'~ '~: ~ i"' ;, ~,,-, ' ~~~: .', . ,, ,.. ,. ~/ J '""'~;:~;"'¢~'~/;' .... ~ ~ ~;~ },,; '~:,.', ':,,, ,.,, :.~, ,, '; ,,,:'~ ~.'. ,:. ,, ApproVed' b Commissioner Form 10-403 Rev 12-1-85 / ~/ / ; August l, 1986 1~'. R. S. Allan · " Division Drilling Engineer ,.. Standard Alaska Production Company P. O. Box 6612 Anchorage, AK 99502-0612 Re: Extension of Susu~ended Status Niakuk No. 1-A Niakuk No. 2-A ,,Niakuk, No. Dear Mr. Allan: Niakuk No. $ Sag Delta No. 9 Sag Delta No. 10 Telecopy No. (907) 276-7542 A review of our records shows that the above referenced wells are suspended. .~ Section I10(a) of the regulations states the Commission will, in '.- its discretion, approve the suspension of a well if the wellis .,. capable of producing hydrocarbons in paying quantities or is -. reasonably demonstrated to have future value as a service well. Section 105(d) states: "Each well drilled from a beach or from an artificially constructed island or a shifting natural island must be abandoned or suspended before removal of the drilling unit from the site unless completed as an oil, gas or service well..., and plans for maintaining the integrity of the well site are approved by the Commission." In compliance with Section 172(c) of the regulations, "[f]or a well abandoned from an artificial gravel island or a shifting natural island, the well site must be cleared within one year following abandonment, or before the time that the operator ceases to conduct activities necessary to ensure the integrity of the well site .... " Section 105(m) provides the means for obtaining "...a variance from the requirements of this section if the variance equally effects proper plugging of the well and will not allow the movement of fluid into sources of hydrocarbons or freshwater." Mr. R. S. Allan August 1, 1986 Page 2 We are, therefore, requesting that you submit Form 10-403, Application for Sundry Approval, for a one-year extension of suspended status for the above referenced wells together with justification for keeping the wells in suspended status. Please call Harold J. Hedlund at 279-1433 if you have any questions. Sincerely, Lonnie C. Smith Commissioner jo/A.HJH. 23 ALASKA OIL AND GAS CONSERVATION COMMISSION / 3OOl I~ORCUPINE DRIVE c. g. RE: Well .Ulk~u~ ~ ~ We ~Ls~ ~o b~Ln~ ~o your ~e~Lo~ ~ba~ ~be Co~LssLo~ h~s no~ yeC received ~.he follo~n~ required ~ems which our recbrds indicated was completed ~.. .. Article 536(b) of Title 20,. Chapter 25, Alaska Administrative Code, stipulates that this material shall be filed within 30 days after completion of a drilled.well. Please submit the above missing material. Chairman lc..C.024 SOHIO ALASKA PETROLEUM COMPANY 900 EAST BENSON BOULEVARD ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 P.O. BOX 6612 ANCHORAGE, ALASKA 99502-0612 December 18, 1985 Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Attention: Mr. C. V. Chatterton Re- Well Niakuk #4 (42-25-12-15) Gentlemen' Enclosed in triplicate are the following documents for the proposed re-entry of the above-mentioned well. 1. Form 10-403 Sundry Notices and Reports on Wells. 2. Proposed Blowout Preventer Diagram The well is currently permitted to a total depth of 13,000 feet, Since the deepening of the well will involve penetrating the Lisburne formation, hydrogen sulfide detectors will be operational in conjunction with the mudlogging, unit. Hydrogen sulfide contingency equipment will be available at the we/lsite. The deepening of this well is currently anticipated to start in early March 1 986. If you have any questions regarding this matter, please call Dick Maskell at 564- 5551. I' RSA/CRM/dg/0268D cc' C. R. Maskell Well File #17 Very truly yours, SOHIO ALASKA PETROLEUM COMPANY R. S. Allan Division Drilling Engineer RECEIVED ~'~ :?% ~!~, ~ :'~:~ ...... i ~ ' '~ : "", ~ ; .,, ~ ..... ~ , t,'v, ~ ,~ .. , .:...~.:~ ~;~1<~ 0~1 & t~,~Gasr. ~ ~C°ns' Commission ,~: ~ :', ,. , .,, . ,.:, , ,: STATE OF ALASKA ( ALASKA OIL AND GAS CONSERVATION COMMISSION SUNDRY NOTICES AND REPORTS ON WELLS 1. DRILLING WELL [] COMPLETED WELL [] OTHER [] SUSPENDED NELL 2. Name of Operator Sohio Alaska Petroleum Compan~v 3. Address P. 0. Box 196612, Anchorage, Alaska 4. Location of Well At Surface: 7. Permit No. 84-200 995l 9-661 2 8. APl Number 50- 029-21217 9. Unit or Lease Name _ ADL 34630 3524' NSL, 144' WEL, Sec. 25, T12N, R15E, UPM VERTI'CAL WELL 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. ADL 12. Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data 10. Well Number Niakuk #4 (42-25-12-15) 1 1. Field and Pool Wi 1 dcat {Exploration) NOTICE OF INTENTION TO: SUBSEQUENT REPORT OF: (Submit in Triplicate) (Submit in Duplicate) Perforate [] Alter Casing [] Perforations [] Altering Casing Stimulate [] Abandon [] Stimulation [] Abandonment Repair Well [] Change Plans [] Repairs Made [] Other Pull Tubing [] Other E~ Pulling Tubing [] (Note: Report multiple completions on Form 10-407 with a submitted Form 10-407 for each completion.) [] [] [] 13. Describe Proposed or Completed Operations (Clearly state all pertinent details and give pertinent dates, including estimated date of starting any proposed work, for Abandonment see 20 AAC 25.105-170). The well was suspended in February 1985 with 9-5/8" casing cemented at 10296' BKB. It is proposed to re-enter the well in early March 1986 and perform the following operations. 1. Move in rig, nipple up and test BOPE to 5000 psi. 2. Drill out 9-5/8" casing shoe and drill 8-1/2" hole vertically to 13000' BKB. 3. Perform one open hole drill stem test in the 8-1/2" hole if shows warrant. 4. Abandon 8-1/2" hole in accordance with State regulations. Squeeze perforations and suspend the well regulations. 5. Perform two cased hole drill .stem tests within the 9-5/8" casing. 6. in accordance with RECEIVE[) State /~faska Oil & Gas Cons. Con Anchorage 14. I hereby certify that the foregoing is true and correct to the best of my knowledge. ~ ~ Division Drilling Signed % Title u . I)'-;,,~!! F' ~';,u,,. ,,,,' ':~ ~ q ~'"':' ~ " !:,:~ ~ * ';')"c;i":il/~ ,~ ~; :} ~:: ,: :: .., .~ '.,,,~;, ]: /.';.". The space below for Commission use ~l /~,, ' . .. : . ., .' Conditions of Approval, if any: By of Approved by '~¥ l,[J~J[ ~, ~J~l]r ~ C'0MMISSIONER theOrdercommission Form 10-403 Rev. 7-1-80 Submit "Intentions" in Triplicate and "Subsequent Reports" in D~Jplicate B .0. Fl," 13 STACK CONFIGU( ~,TION 5/8" TRIPLE RAM STACK 5000 PSI WP DRILLING ANNULAR PREVENTER" PIPE RAMS BLIND RAMS CHECK 2" KILL UNE HAND GATE GATE DRILLING SPOOL PIPE RAMS' 4" CHOKE LINE ~ATE M EMORAIN OUM Stat -.'. of Alaska ALAStCA OIL AND GAS COL~SERVATiON CO~,~,~ISSION TO: Co V. Chatterton DATE: Chairman THRU: FROM: Lonnie C. Smith Commi s s ioner Bobby D. Foster !~J"' 'i. Petroleum Inspector FILE NO: September 17, 1985 D.BDF.86 TELEPHONE NO: SUBJECT: Location Inspection Sohio - P.B.U. Niakuk No. 4 Permit #8~4-200 Prudhoe B~ Oil Pool Friday, August 30, 1985: I met with Dick Maskell, Sohio Representative, and insPected the following suspended location: Niakuk ~4 - Permit #84-200 - P.B.U. Mr. Maskell told me that a rig will be moved to this location in the winter of 1985-86 and more work will be done. Attached to this report are pictures and a suspended well report. Attachment 02-00IA(Rev. 10/79) · . Suspen~i~ Well and Location Reporti 20 AAC 25, ARTICLE 2 FILE INFOrmATION: ~--_ . ./) ~ ,/1/--. ~a--~-~ _----. _~ ~ ~~ F~~ ~~ Da te Suspended Surface Location of Well Ft. F._~ L, /~q Ft. F ~ L AP1 NO. T/~ ~, R~~, ~ M. Unit or Lease Wel 1 No. Field & Pool Condition' of Pits _/~///~ Well head - Ail outlets plugged Well sign - Attached to well head Attached to well guard Attached to ./L)~ .5~/_z-~,~;_~_ Information correct No Ye s Yes Yes ~ Cellar - Opened ~ No Filled No Cove red Ye s No WaterWell - Plugged off Rat Hole Open Fi 1 led Covered Capped Open Explanation_ xes Ye s No Ye s No Photographs taken to verify above conditions ~ No Explanaton Work to be done _to be acceptable This well and location is (acceptable)~n_;a_c.ceptab_I~_to be suspended f.or the period of ~-~O-_ _ l~l_~thru -i~_-~:~ Inspected 'b ., Revised 8/24/82 classified as , , ,. ., ,3 ALASKA PETROLEUM COMI:( P.O. BOX 6612 ANCHORAGE, ALASKA 99502-0612 Y ANCHORAGE OFFICE: 900 EAST BENSON BLVD. · ANCHORAGE, ALASKA 99502-0612 · (907) 561-5111 TO: ~}'1/ F~,D /¢r/'O.,~_ ORIGINATOR: · ATTENTION: 8-/~-85 The following material is being transmitted herewith. Please acknowledge receipt by signing below and returning acopy of this letter: ¢-¥ d(.,,50'-/D,~¢' ...... nn ~ Gas Cons. commission Ata:~r,a ,," /~f~chofaOje Received by: AK 2233-2 (4/85) Date received: ALASKA OIL AND CAS CONSERVATION-COMMISSION Bill SheHield, Governor 3001 PORCUPINE DRIVE ANCHORAGE,ALASKA g9 501.1-3192 TEL E PHONE (907) 279,-1433 Permit No. _ c'~' ,~'"" ~,~dY(~7 RE: We wish to bring to your attention that the Commission has noi/''' yet received the following required items on the subject well whiCh our records indicated was completed ~ -- / ~-- ~.~'- Article 536(b) of Title 20, Chapter Code, stipulates that this material after completion of a drilled.well. 25, Alaska Administrative shall be filed within 30 days Please submit the above missing material. Chairman lc:C.024 SOHIO ALASKA PETROLEUM COMPANY 900 EAST BENSON BOULEVARD ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 P.O. BOX 6612 ANCHORAGE, ALASKA 99502-0612 July 22, 1985 Mr. C.V. Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK ~99501 RE- 1985 LOCATION INSPECTION Dear Mr. Chatterton' In compliance with State Regulation 20 AAC 25.170, attached are Fores 10'403, Sundry Notices and Reports on Wells, for the following wells. These notices request that the wells remain in suspended status. BP 41-33-1 2-1 3 BP 22-33-11-13 Term Well B (22-20-11-13) Term Well C (34-03-11-12) Chevron Tract Wel 1 (23-18-11-1 2) MPC Tract Well (21-03-10-12) PBU MP 43-31-11-13 MPC 11-33-11-12 Getty State #1 (02-10-13) MP Tract Well (32-30-11-13) PBU MP (22-31-11-13) No. 2 West Sak 25645 #9 West Sak .25548 #11 West Sak 25655 #14 West Sak #16 West Sak #17 Kuparuk State 22-11-12 Sag Del ta #1 (33-12-16) Sag Delta #2A (lO-11-16) Sag Delta #3 (35-12-16) Sag Delta 34633 #4 Sag Delta #5 (36-12-15) Sag Delta #7 Sag Delta #8 Sag Delta #9 Sag Delta #10 Niakuk #lA (26-12-15) Niakuk #2A (23-12-15) Alaska Island #1 Ni akuk #4 Niakuk #5 ECEi\?ED J U L 2 .,, Alaska Oil & Gas Cons, Commission Anchorage Mr. C.V. Chatterton July 22, 1985 Page 2 Sag Delta #11 is now ready for final inspection of the abandoned wel 1. Please advise the undersigned which day during the week of August 19-23 is acceptable for your field inspector to accompany our representative for this annual location inspection trip. Very truly yours, RSA/CRM/sh 7228'5:0530N Attachments cc' Well File #17 R.S. Allan Acting SAPC Drilling Engineer { STATE OF ALASKA ~ ALASKA uIL AND GAS CONSERVATION CO MMISSION SUNDRY NOTICES AND REPORTS ON WELLS 1. DRILLING WELL [] COMPLETED WELL [] OTHER 2. Name of Operator 7. Permit No. Sohio Alaska Petroleum Company 84,200 3. Address 8. APl Number P. O. Box 6-612, Anchorage, AK 99502 50-029~.21217 4. Location of Well At Surface 3524' NSL, 144' WEL, Sec. 25, T12N, R15E, UPM 5. Elevation in feet (indicate KB, .DF, etc.) KBE = 44 ·68' AMSL 12. 9. Unit or Lease Name ADL 34630 10. Well Number Niakuk J~4 (142 ,-25x-,] 2~,15_)_ 11. Field and Pool Wildcat 6. Lease Designation and Serial No. (.Exploration)_ ADL 34630 . Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data NOTICE OF INTENTION TO: SUBSEQUENT REPORT OF: (Submit in Triplicate) (Submit in Duplicate) Perforate [] Alter Casing [] Perforations [] Altering Casing [] Stimulate [] Abandon [] Stimulation [] Abandonment [] Repair Well [] Change Plans [] Repairs Made [] Other [] Pull Tubing [] Other [] Pulling Tubing [] (Note: Report multiple completions on Form 10-407 with a submitted Form 10-407 for each completion.) 13. Describe Proposed or Completed Operations (Clearly state all pertinent details and give pertinent dates, including estimated date of starting any proposed work, for Abandonment see 20 AAC 25.105-170). Reason for Extension: This. suspended well is to be rev.entered and deepened for further evaluation. 14. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed . ~-~ - ~ Title S'APC Drillin_~ EnEinee~ The space below for Commission use R. S. Allan Date Conditions of Approval, if any: Approved by ~ L[~i~IE I~. $111Tlt COMMISSIONER ^pprovect Copy i; :: ,;.: :"' :': ', :,, :,,, .::. :, . ,.. , ,,, .~' , .., ',', . · '. , ,i , . ' ., ., :.:, ,:,,.,,,~ By Order of /~/_(~/~ the Commission Date -_. Form 10-403 Rev. 7-1-80 Submit "Intentions" in Triplicate and "Subsequent Reports" in Duplicate ..,) ALASKA PETROLEUM COMt' P.O. BOX 6612 ANCHORAGE, ALASKA 99502-0612 ,Y ANCHORAGE OFFICE: 900 EAST BENSON BLVD. · ANCHORAGE, ALASKA 99502-0612 ° (907) 561-5111 TO: Bill Van Alan ORIGINATOR ' "~- Oil And Gas Consez-vation Co~z~ssio~ DATE SENT: 3001 Porcupine Drive Anchorage, Alaska ATTENTION: The following material is being transmitted herewith. Please ac. knowledge/,eceipt by signing below and returning a copy of this letter: Niakuk #4: 1 copy each, bluelLne and GCT Wel~ Survey, Run 1 10,205.0' Received by: Date received' r,, LLL ~ V LLJ AK 2233-2 (4/85) SOHIO ALASKA PETROLEUM COMPANY TO: FROM; SUBJECT: OFFICE CORRESPONDENCE Bill Van A1/en AOGCC . OATE: June 4, 1985 Julie A. McMaster ~ CC NO: Transmittal of Data YOUR REF 1 blueline and 1 mylar of each Repeat Formation Tester, Run 2, 8700.0-10055.0 /V/~4A~.~. Repeat Formation Tester, Run 2, 9764 0-11345.0_~iO_~L)~_~S PLEASE SIGN AND RETURN ONE COPY S I GNATURE DATE Alaska Oil & Gas Cons,, Commissio. Anchorage '~7-1 (7/81) SOHIO ALASKA PETROLEUM COMPANY , June 3, 1985 900 EAST BENSON BOULEVARD ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 P.O. BOX 6612 ANCHORAGE, ALASKA 99502-0612 State of Alaska Alaska Oil and. Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-3192 Niakuk 4 & 5 Completion Reports Gent lemen: For your records, we offer the following information for the above subject wells. Niakuk 4 Kelly bushing elevation at mean sea level 44.68 feet. Niakuk 5 Kelly bushing elevation at mean sea level 44.90 feet. Niakuk 4 ~/'~D)-O0 Niakuk 5 TD 10,300' 11,507' TD TVD 10,300' 10,613' TD (PB) 10,254' 11,464' TVD (PB) 10,254' 10,581' The bottom hole location for Niakuk 5 at 11,507 feet: 693' NSL, 2075' EWL, Sec. 30, T12N, R16E If you have any questions regarding this matter, please call Ted Stagg at 564-5173. Very. truly yours, District Drilling Engineer RHR:MS:elw 53185/0320w cc: Well file 917 RF_c£ V£D o 4 SOHIO ALASKA PETROLEUM COMPANY 900 EAST BENSON BOULEVARD ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 P.O. BOX 6612 ANCHORAGE, ALASKA 99502~)612 May 31, 19 85 State of Alaska · Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive / . Anchorage, Alaska 99501-3192 [~/ ~II ~ N-~ ~ ~-~'$'c°/'¢ "~'~-'"~/'~7 Gentlemen: ~('~ ' We i i~N i ak~k..-'4"'"(~ 2 - 25-12 - l 5 ) Enclosed please find the.,Gy.r~ Well Survey J for the above named well. If you have any ~estions regarding this matter, please call Ted Stagg at 564-5173. Very truly yours, District Drilling Engineer RHR:MS:elw 53085/0314w Enclosure Well File #17 SOHIO ALASKA PETROLEUM COMPANY OFFICE CORRESPONDENCE TO: FROM: SUBJECT: Bill Van Allen Division of Oil and Gas Conservation Julie A. McMaster ~ Niakuk #¢Finalized Logs DATE: CC NO: YOUR REF May 29, 1985 Enclosed: 1 each blueline and sepia: ~ k~)t~'"' ~/ ~Cement Bond Log Variable Density )%~~~.a_CCT Cyro Wall Sur~y , -------"~'~ /.~mperature Log RUN # INTERVAL DATE 10242-10254 03-12-85 10229-10254 03-12-85 PLEASE SIGN AND RETURN ONE COPY: RECEIVED BY Oil & Gas Cons. Commission Anchorage DATE ~K3407-1 (7/81) SOHIO ALASKA PETROLEUM COMPANY OFFICE CORRESPONDENCE CDNFIDENTI £ TO: Bill Van Allan DATE: May 25, 1985 FROM: Julie A. ~24aster CC NO: SUBJECT: Transmittal of Well Data YOUR REF: Niakuk %4 1 mylar and blueline of each: 5" Long Spaced Sonic, Run§ 1 and 2 11 II II II II 5" DIL-SFL, Run 1 and 2 ~ ~le Ta~, Run ~and2 w/~a~ification listing~__ ,,~'~00~-~__-- ~ ~/,I --~/.~~-.~ Open Hole, Run 1 and 2 w/verification listing~~~/- Sohio Alaska Petroleum Cc~pany Attn: Julie A. McMaster 900 East Benson Anchorage, Alaska 99502 SI~%ATURE 'O7-1 (7/81) V D MAY2 4 ]985 --- Alaska 0il & Gas Cons. Cornmi.~.qiog -- :, . SOHIO ALASKA PETROLEUM COMPANY 900 EAST BENSON BOULEVARD ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 P.O. BOX 6612 ANCHORAGE, ALASKA 99502-0612 SOHIO RESTRICTED May 9, 1985 Alaska Oil and Gas Conservation Commission 3001 Purcupine Drive Anchorage, Alaska 99501 Attn: Mr. C. V. Chatterton Gentlemen: Niakuk 94 Enclosed, in duplicate, is Form 10-407, Well Completion Report for the above named well together with the Well History. Well Logs and Directional Survey will be mailed separately. This well has been suspended. Very truly yours, District Drilling Engineer RHR:IBG:elw 5885/0252wp2 Enclosure cc: Well File 917 RECEIVED Alaska Oil & Gas Cons. Commissior~ Anchora~g'~",'~, ,,¢~'~' ~', ~'~ ?i''''~ '~ :'::', ~'"':.'~ :~ .... '". ..... · , :. " ", STATE OF ALASKA · A'LASk .: D GAS CONSERVATIOI* .i'.,:' i' MISSION rWELL COMPLETIGi I OR RECOMPLETIO:'?' ":, PORT AND LOG 1. Status of Well OIL [~ GAS [] SUSPENDED [~( ABANDONED [] SE-~,,VICE [] Classification of Service Weil SOHIO RESTRICTED 2. Name of Operator 3. Address P.O. Box 6-612, Anchorage, Alaska 99502 4. Location of well at surface 3524'~NSL, 144' WEL, Sec. 25, T12N, R15E, UPM At Top Producing Interval 524' ~ 144' WEL, Sec 25, T12N, R15E, UPM t/otal ' ' .......... 3625' NSL, 130' WEL, Sec{.25,?12N, R15E, UPM 5. Elevation in feet (indicate KB, DF, etc.) ......... ' I 6. Lease Designation and Serial No. GL to KB = 37.9.. ] ADL 34630 12. Date Spudded 113. Date T.D. Reached 1/15/85 h D+TVD I 2/14/85 17. Total Dept (M ) 118'Plug Back Depth (M~TVD) 10,300' ~ I 10,254' 22. Type Electric or Other Logs Run See Attachment #1 7. Permit Number Q/, _O~ ~P~mber 50- 029-21217 9. Unit or Lease Name ADT, '4&6 30 10. Well Number ~Niaku_k #4 (42-25-12-!5) 11. Field and Pool Wildcat (Exploration) 14. QateComp.,Susp. orAband. 15. Water Depth, if offshore [16. No. of Completio~ 2/17/8.5 N/A feet MSLJ ~9. Directional Survey 20. Depth whereSSSV set J 21. Thickness of Permafrost YES _[~ NO [] N/A feet MDJ 1600' . 23. CASING, LINER AND CEMENTING RECORD CASING SIZE WT. PER FT. GRADE HOLE SIZE 30" 157.5 B 20t~ 133 K-55 13 3/8" 72 L-80 9 5/8" 47 L-80 SETTING DEPTH MD TOP BOTTOM Surface 120 Surface 1703 Surface 5028 Surface 10296 24. Perforations open to Production (MD+TVD of Top and Bottom and interval, size and number) 17%" 12%" 25. SIZE 26. CEMENTING RECORD AMOUNT PULLED 460 cu. ft. Per,m~frn.~ B 4655 cu.ft, Permafro t B 2530 cu. ft. Class G-F 330 cu.ft. Per~ 1584 cu. ft. Class G 130 cu. ft. Per: . TUBING RECORD IDEPTH SET (MD) PACKER SET (MD) ACID, FRACTURE, CEMENT SQUEEZE., ETC. DEPTH INTERVAL (MD) IAMOUNT& KIND OF MATERIAL USED EZ-Drill @ 2200'~ 21 cu. ft. Coldset I · 27. Date First Production Date of Test J Hours Tested Flow TubingJ Casing Pressure Press. PRODUCTION TEST JMethod of Operation (Flowing, gas lift, etc.) PRODUCTION FOR TEST PERIOD ~ CALCULATED 24-HOUR RATE OI L-BBL OIL-BBL GAS-MCF GAS-MCF 28. CORE DATA WATER-BBL. CHOKE SIZE GAS-C 4=RATIO WATER-BBL /OIL GRAVITY-AP! (Corr) / Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. Core 1 9217-9227 (8.7'/10') Core 5 2 9600-9660 (54.4'/60') 6 3 9660-9708 (46 '/48') 7 4 9708-9768 (58.7'/60') 8 ',9768-9828 (50'/60~.,)1 \! 5 C i ,, L7 9840-9900 (60'/60') 9900-9960 (60'/60')i'~'¥' ~ ? IQ~L, -,,.. ?.; .5 Core chips will be send under separate cover. -:. , ',: " ': ;'i :' ? · . . , . ': ':: '~""':' ;: ': ' '' ii, :i ;.. ....... :.' }. ~ ' .' '¥ :'"- i~: :"~-': , ':' :, - ., .. . z, . Form 10-407 ~ ~ %., .:: .:. :: .. , ~.: ~,? Submit in Rev. 7-1-80 CONTINUED ON RE I~R~E~:.,$.JI~E.. 29. '(~,. ! 30. GEOLOGIC MARKF_.: FORMATION TESTS NAME Include interval tested, pressure data, all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. 31. LIST OF ATTACHMENTS ___ 32. I hereby certify that the foregoing is true and correct to the best of my knowledge District Signed, Title DrillinK En~ineerDate INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. ~'"~.Item 1' Classification of Service Wells' Gas injection, water injection, steam injection, air injection, salt ~,,~ater disposal, water supply for injection, observation, injection for in-situ combustion. ,,, ! Item ',-5: Indicate which elevation is used' as reference (where not otherwise shown) for depth measurements given i,n other spaces on this form and in any attachments. ,, , Item 16 and 24: If this well is completed, for separate, pr~)duction from more than one interval (multiple ..completion}, so state in item 16, and in item 24 show the producing intervals for only the interval reported i in item 27. Submit a separate 'form for each additional interval to be separately produced, showing the data pertinent to such interval. l ltem 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). "Item 23' Attached supplemental records for this well Should show the details of any multiple stage cement- ing and the location of the cementing tool. :.., '. item 27: Method of Operation: Flowing, Gas Rod Pump, Hydraulic Lift, .',:,':?;.: -:~ .'.'.' ~:.:,.[ection, Ga~'lnjection, Shut-in, Othe~:expl::n. .;?~::'%":.:'[em 28: If n° cores taken, indicate none . .. CORE LABORATORIES, INC. Petroleum Reservoir Engineering C) ALL~$. T I~ XA li CORE ANALYSIS REPORT FOR GOHIO ALASKA PETROLEUM CO. · N I AKUK ' 4 PRUDHOE BAY FIELD UHIAT HERIDIAN, ALASKA Th(K II~llyttt, (~pinions ot Intetp~etationl Ire bl~d on obKtvitions and mite~Wll iu~l~ by t~ ~ to w~, Ind f~ w~ ex~u~ and ~nfl(lentMl u~, tMs te~rl tl ~de. The Inierp~elil~nn o~ opinions exprewd tepr~nf t~ ~lt ju(lgmetd of Co/e ~rltorlel, Inc. (all errofe and omL~o~ ix~); ~,t ~ ~rRt~a, t~. a~ Itl hfftr~z and employeel, a~u~ no fe~nltblYly and ~ke no warranty of flofi.ntationl, u to the pf~ilctlvily, motor op~atl~m, m profltihleneu of any o11. ~l m o~ ~1 ~ M ~ M ~Wn wRh ~ lu~ te~rt ~ ~d ~/l~d ~n. CORE LABORATORIES, INC. Petroleum Retervotr Engineering PAGE 1 SOHIO ALASKA PETROLEUM CO, DATE ~ 5-MAR-85 FILE NO : 13993 "NIAKUK" 4 FORMATION ! LABORATORY! BAKERSFIELD PRUDHOE BAY FI[LO DRLG. FLUIDI ANALYSTS : DLK AB UMIAT MERIDIAN, ALASKA LOCATION ~ SEE,~5-T12N/R15E ELEVATION t DEAN-STARK CORE ANALYSIS .~_~. 10 11 12 13 , 14 15 16 SAMPLE DEPTH PERM MD Ne OIL% WTR% O/W TOTAL GRAIN ' 'MBER FEET HORIZ Km F'OR PORE PORE RATIO LIQUID DEN C I 9600.0- 1.0 236. 21,2 0,4 1,0 0,40 1,4 2,71 SST BY VF-PBL SSLTY NO STN NO ~ 9601,0- 2,0 41, 17,6 0,1 1 3 0 08 1,4 3,01 SST GY-TN VF-FOR SSLTY F'YR LT STN GLO FLU 3 9602,0- 3,0 59, 19,7 0,8 1,1 0,73 1,9 2,88 SAME 4 9603.0- 4.0 203. 24,1 1,5 0,8 1,87 2,3 2,66 SST TN VF-FGR SSLTY LT BF' STN GLO FLU 5 9604,0- 5,0 423. 19,5 0,1 3,5 0,03 3,6 2,65 SST TN VF-PBL SSLTY LT SP STN GLD FLU 6 9606.0- 7.0 630, 21,8 1,1 2,9 0,38 4,0 2,69 SST TN VF-PBL SSLTY SLT INCL LT SF' STN GLO FLU 7 9607,0- 8,0 541, 22,2 0,8 1,4 0,57 ~,~ 2 2,89 SST TN VF-FGR SSL'IY F'YR INCL LT SP STN GLO FLU 8 9608,0- 9,0 563, 23,3 3,8 0,8 4,75 4,6 2,74 SAME 9 9609.0-10.0 394, 25,0 1,~ 1,2 1,50 3.0 2,65 SST TN VF-FGR SSLTY LT FLU 9610,0-11,0 244, 23,3 1,5 1,4 1.07 2,9 2,80 SAME/PYR INCL 9611,0-12.0 220, 25,1 0,5 2,4 0,21 2.9 2,70 SAME/F'YR INCL 9614,0-15.0 0,34' 10,9 0,3 8~;3 0,04 8,6 2,66 SST TN VF-MGR VSLTY CLY STN GLO FLU 9615.0-16.0 1659, 26.6 0,4 1,3 0,31 1.7 2,68 SST TN YF-CBR SSLTY SLT SP STN GLO FLU 9616.0-17.0 2,77 SST BY-TN VF-PBL SLTY SP STN GLD FL 9618.0-19.0 589. 18,6 1,0 3,1 0,32 4,1 2,71 SST TN-GY VF-F'BL SSLTY LT GLO FLU 9621,0-22.0 486. 22,5 0,6 1,4 0,43 2,0 2,78 SST TN-BY VF-FGR SSLTY PYR LT SP STN GLO F 17 9622,0-23,0 346, 21,6 0,3 2,4 0,12 2,7 2,90 SAME/VCGR 18 9624,0-25,0 465, 22,2 0,4 2,3 0,17 2,7 2,74 SAME 19 9625,0-26,0 349, 21,7 1,1 2,5 0,44 3,6 2,88 SAME/GRAN DESCRIF'TION Theje analysee, opinJone or Inlerprrfatlons are ba~d on obeervationl and materlah mppli~d by the client to whom, and fo( whol~ exclulJve and eonfidentlal uee. tide report it made. The inlerpretation~ of opinions expfetmd ~epfe~nl the best tudltment of Cole Latxnatmlel. Inc. (all errora and omla~ exee~ned); I~ Ceee LaboratorY. lm~. lad I!~ officers and emplnyee~. ,l~ume lib re~onJibiUty and make no warranty o~ SF' STN GLD LAM L INCL LT F'YR INCL LT SP STN /NCL CORE LABORATORIES, INC. Petroleum J~etervoir Engineering DALL. AI, T I'XA~ PAGE 2 SOHIO ALASKA PETROLEUM CO. [lATE : 5-MAR-85 FILE NO : 15993 'NIAKUK" 4 FORMATION : LABORATORY1 BAKERSFIELD DEAN-S]'ARK CORE ANALYSIS 54 SAMPLE DEPTH PERM MD 14e OILZ WTRZ O/W TOTAL GRAIN NUMBER FEET HORIZ Ka F'OR PORE PORE RATIO LIQUI[~ lIEN C 20 9626.0-27,0 1962, 23,9 0,7 2,9 0,24 5,6 2,69 SST TN VF-BRAN SSLTY LT SP STN GLO FLU 21 9627,0-28,0 464. 18,9 0,6 1,8 O,J3 2.4 2,81 SAME/PBL PYR - 22 9630.0-31.0 751, 19,5 0,2 5,2 0,06 3,4 2,79 SAME/F'BL F'YR i 23 9632,0-33,0 737, 16,3 1,3 3,8 0,34 5,1 2,67 SAME/PBL 24 9649.0-50.0 51. 15,4 0,8 7,6 0,11 8,4 3,05 SAME/PYR 25 9659,0-60.0 34, 14,4 0,5 4,5 0,11 5,0 2°90 SAME/PBL PYR 26 9660o0-61o0 42. 17,4 0,4 1,8 0,22 2,2 2,70 SST TN VFGR SSLTY PYR LT SP STN GLD FLU 27 9665,0-66,0 571o 20.8 0,4 2.0 0.20 2,4 2,72 SST TN-BY UF-MGR/UCGR SSLTY PYR LT SP STN BLD 28 9667,0-68°0 322, 18,3 0,1 7,2 0,01 7,3 2.68 SST TN-BY VF-PBL SSLTY LT SP STN GL[~ FLU 29 9668,0-69,0 441, 21,1 0,5 2,9 0,17 3,4 2.70 SAME 30 9669.0-70.0 1025, 24,4 0,2 2,5 0,08 2,7 2,74 SST TN-BY VF-GRAN SSLTY PYR LT SP ~ STN GLD FLU 31 9670.0-71.0 1057. 24,2 0,3' 3,8 0,08 4.1 2,78 SST TN-BY VF-MGR SSLTY F'YR LT SP STN GL[~ FLU 9671o0'-72°0 156, 17.4 1,8 6,6 0.27 8,4 2,66 SAME/PBL PYR INCL 9672,0-75.0 679. 26,1 0,1 4,6 0,02 4,7 .2,72 SST TN UF-FGR SSLTY PYR LT SP '~H ~' GLD FLU 9674.0-75,0 744,. 19,7 0,2 5,1 0,06 3,3 2,70 SST TN VF-F'BL SSLTY F'YR INCL LT SP STN GLD FLU 35 9675.0-76.0 1806,. 22,8 0,1 11,3 0,01 11,4 2,69 SST TN VF-GRAN SSLTY LT SP STN GLD FLU 36 9677.0-78~0 101, 15,9 0,4 15,3 0,03 15,7 2,83 SST TN-BY UF-F'BL SLTY PYR LT SP STN OLD FLU 37 9678,0-79,0 413, 20,1 0)8 11,6 0,07 12,4 2,87 SAME/SSLTY 38 9679,0-80,0 527, 20,4 0,4 5,2 0,08 5,6 2,76 SAHE/SSLTY 39 9680,0-81,0 568, 24,9 2,0 1,8 1,11 3,8 2,71 SAME/SSLTY 40 9681,0-82.0 239. 23,5 0,7 4,2 0,17 4,9 2,67 SST TN VF-BRAN SSLTY F'YR INCL LT SP STN OLD FLU [~ESCRIPTION T~e~e analy~e:, opinions or Interpretations are bi#d on obmvationt and materials ~uppl~d by t~ ~t to w~,~d fm w~ exdudve and ~nlldental ~, tMs re.ri it ~de. The tmetp~etalmn~ or opini.n~ expfea~d repre~nl I~ ~ll Ii,aliment of Core ~horilorbl, Inc. (all errors and om~ oxy); ~t C~ ~mt~. l~. and Its ~m~,~ ~d emploWel, t~ume no ;e~m~lUty and mike ~ watlanty or SOHIO ALASKA PETROLEUM CO. 'NIAKUK' 4 CORE LABORATORIES, INC. Petroleum Rejervolr Engineering DALLAS, TEXA~ PAGE [lATE t 5-MAR-B5 FILE NO ~ FORMATION : LABORATORY: [lEAN-STARK CORE ANALYSIS ,, 13993 BAKERSFIELD SAMPLE DEPTH PERM MD He OIL% WTR% O/W TOTAL GRAIN NUMBER FEET HORIZ Ka POR PORE PORE RATIO LIQUID DEN C [tESCRIF'TION 41 9682,0-83,0 901, 24,4 O,B 2,4 0,33 3.2 2,70 SAME ~.~.~, 42 9683,0-84,0 485. 23,9 2,1 0,6 3,50 2,7 2,72 SST TN VF-FBR SSLTY PYR INCL LT BF' STN OLD FLU 43 9684,0-85,0 471. 22,6 1,1 0,8 1,38 1,9 2.73 SAME 44 9693.0-94.0 600. 19,6 ,0,1 7,6 0,01 7,7 2,71 SAME/BRAN 45 9694,0-95,0 185, 16,4 0,2 9,5 0,02 9,7 2,91 SST BY-TN VF-PDL SSLTY PYR LT SP STN OLD FLU 46 9696,0-97,0 238, 19.4 0,2 6,1 0.03 6.3 2,67 SST TN-BY VF-PBL SSLTY LT SP STN GL[! FLU 47 9699,0- 0.0 92. 21,8 0,2 2,8 0,07 3,0 2,68 SST TN VF-FGR SSLTY PYR INCL LT SP STN GLD FLU 48 9700,0- 1,0 112, 19,8 0.3 4,9 0,06 5,2 2,69 SST TN VF-FBR/BRAN SSLTY PYR INCL LT SF' STN BLII 49 9702,0- 3.0 3.7 13,4 4,6 3,3 1,39 7,9 2,67 SST TN VF-PBL SSLTY LT BP STN GLD FLU 50 9711.0-12.0 75. 15,4 0,~, 8,4 0,05 8.8 2,80 SST BY-TN VF-FBR SSLTY F'YR INCL L.T SP STN GLD F 51 9712,0-13,0 517, 21,9 0,3 3,5 0,09 3,8 2.74 SAME ~ 52 9713,0-14,0 904. 22,7 0,3 6,8 0,04 7.1 2,70 SST BY-TN VF-BRAN SSLTY LT SF' i; GLD FLU ' 53 9714.0-15.0 472. 22,4 0,4 3,0 0,13 3,4 2,74 SST BY-TN VF-UCGR SSLTY F'YR INCL LT SP STN GL[! 54 9716.0-17.0 101~ 19,4 0,4 B,O 0,05 8,4 2,68 SST TN VF-BRAN SSLTY F'YR INCL LT SP STN GLD FLU 55 9717,0-18,0 611. 21,6 0,3 5,4 0.06 5,7 2,70 SAME/F'BL 56 9719.0-20.0 151, 17,1 2,8 7,7 0,36 10,5 2,71 SAME 57 9720,0-21.0 2,8 7,9 1,1 7,8 0,14 8.9 2,82 SST BY-TN VF-PBL SSLT¥ PYR INCL LT SF' STN GL[! F 58 9727.0-28.0 440. 17,3 0,4 9,2 0,04 9,6 2,70 SST TN UF-F'BL SSLTY PYR INCL LT SP STN GLD FLU 59 9733.0-34.0 0.15 11,3 3,2 9,2 0,35 12,4 2,70 SST TN VF-FGR SSLTY PYR INCL LT STN GLD FLU Th~e analy~es, opinions or Interp~etatlon~ ara ba#d on ob,,,rvatlon~ and materl~la ~upplled by th~ eUeet to whom, ~nd fo~ who~ exeludve and confidential u~, tM* report I~ made. The inlerpret~lion.~ or opmi,,n~ expfeued repre~en! the ~t judgment of Core Lab(xetorlel, Inc. (aU error, and omimlo~ exelpted); b~ Core Labomtorl~, lac. end It~ olTi°er~ and emptoyee~, i~ume no ~eq~ormiblUty and make OB wa.amy or SOHIO ALASKA PETROLEUM CO, "NIAKUK" 4 CORE LABORATORIES, INC. Petroleum Reservoir Engineering D A I.L.A~, TEXA~ PAGE 4 DATE t 5-MAR-B5 FILE NO ~ FORMATION t LABORATORYI DEAN-STARK CORE ANALYSIS 13993 BAKERSFIELD SAMPLE DEPTH PERM MD He OIL~ WTRZ O/W TOTAL .GRAIN NUMBER FEET HORIZ Ka F'OR PORE PORE RATIO LIQUID DEN C [~ESCRIF'TION ~... 60 9734.0-35,0 151, 20,4 0,2 2,9 0,07 3,1 2,86 SST GY VF-MGR SSLI'Y PYR LT SF' STN OLD FLU 61 9735,0-36.0 19. 21,2 3,2 0,9 3,56 4,1 3,22 SST TN-GY VFGR SSLTY PYR LT SP ~ STN OLD FLU 62 9736.0-37.0 57. 22.3 0,1 5,4 0,02 5,5 2,67 SST TN VFGR SSLTY PYR INCL LT SP STN GLD FLU 63 9737.0-38.0 11. 17.3 0,1 8,0 0,01 8.1 2,66 SST TN VFGR SSLTY PYR INCL LT SP STN GLD FLU 64 9738,0-39,0 245, 22,5 0,3 2,8 0,11 3,1 2,68 SST TN VF-CGR SLT LAMS LT SF' STN OLD FLU 65 9739.0-40.0 453, 23.9 0,4 2,4 0,17 2,8 2,88 SST GY-TN VF-COR/PBL SSLTY F'YR LT SP STN OLD F 66 9740.0-41.0 334, 24,0 0,2 6,6 0,03 6.8 2.83 SST GY-TN VF-MGR/VCGR SSLTY F'YR LT SP STN GLD 67 9741.0-42,0 600. 26,0 0,~, 3',2 0,09 3,5 2,71 SST TN VF-GRAN SSLTY PYR INCL LT SP STN OLD FLU 68 9742,0-43,0 415, 25.6 0,1 5,4 0,02 5,5 2,69 SST TN VF-FGR SSLTY PYR INCL LT r~ SP STN GLD FLU 69 9743,0-44,0 336. 24,5 0,2 2,~ 0.07 3,0 2.73 SAME 70 9744.0-45.0 347, 25,3 0,5 5,~ 0,09 6.0 2,69 SST TN VF-FGR SSLTY PYR INCL L ' SP STN OLD FLU 71 9745,0-46.0 316, 23,4 0,2 3,2 0,06 3,4 2.76 SAME 72 9746,0-47,0 443,. 24,7 0,2 3,0 0,07 3,2 2,71 SAME 73 9747,0-48,0 672, 22,0 0,6 1,2 0,50 1,8 2,69 SAME/CGR 74 9748,0-49,0 74, 22,4 0,1 5,4 0,02 5,5 2,70 SST TN VFGR SSLTY F'YR INCL LT SP STN OLD FLU 75 9749,0-50,0 87, 19,8 0,3 3,7 0,08 4,0 2.76 SAME 76 9750.0-51.0 155, 19,6 0,2 6,6 0,03 6,8 2,78 SAME/FGR 77 9752,0-53,0 465, 17,3 0,2 3,3 0,06 3,5 2,68 SST GY-TN VF-PBL SSLTY PYR INCL LT SP STN OLD F 78 9753,0-54.0 35, 11,5 0,7 6,7 0,10 7,4 2,65 SAME 79 9754,0-55,0 149. 21,9 0.2 4,5 0,04 4,7 2,72 SST TN VF-VCGR SSLTY PYR INCL LT Thief anslyMa, opinions m Interpfetallont are based on oboervalionJ and materials 0upplJod by tho clJ~t to whom. and for whom excludve and confidential use. thio report is nude. The inlerpret.tion~ or opmlnnt SOHIO ALASKA PETROLEUM CO, 'NIAKUK' 4 COFIE LABORATORIES, INC. Petroleum ReJervolr En~ineering DAI. I. AS. TIXAI IRATE ! 5-MAR-85 FORMATION ! DEAN-STARK CO~E ANALYSIS PAGE 5 FILE NO t 13993 LABORATORY; BAKERSFIELO SAMPLE DEPTH 'PERM MD He OIL% WTR% O/W TOTAL NUMBER FEET HORIZ Ka POR PORE PORE RATIO LIQUID GRAIN DEN C "'~ 80 9755,0-56,0 405. 21,4 1,9 0,6 3,17 2,5 2,79 1,7 2,75 2,2 2.68 1.2 2,69 2,1 2,65 3,7 2,73 4,7 2,74 2,2 2,72 3,1 2.71 5,4 2,66 81 9756,0-57.0 368,. 22,8 1,3 0,4 3,25 82 9757,0-58,0 490, 22,4 1,9 0,3 6.33 83 9758,0-59o0 1020, 19,1 0,4 0,8 0,50 84 9761,0-62,0 1085. 17,8 0,8 1,3 0.62 85 9765.0-66,0 394. 21,6 0.1 3,6 0,03 86 9769,0-70,0 696, 18,6 4)4 0,3 14,67 87 9775,0-76,0 272, 20,7 1,6 0,6 2,67 88 9776,0-77,0 416, 22,5 2,5 0,6 4,17 89 9777.0-78,0 115, 24,4 3,4 2,0 1,70 % · 90 9778,0-79,0 120. 15,3 1 ,6 0,8 2,00 I I 91 9779.0-80 ~0 70. 18.9 1,6 O,B 2,00 ~,~ 4 2,68 2,4 2,77 92 9780,0-81,0 317, 21,4 1.7 0,6 2,83 2,3 93 9781.0-82.0 44. 19.7' 4,8 1,i6 3,00 6.4 94 9782.0-83.0 38, 16,6 6.8 0,8 8.50 7,6 95 9783,0-84,0 63, 20,0 0.6 2,8 0,21 3,4 96 9784,0-85,0 283, 18,7 6,9 3,6 1,92 10,5 DESCRIPTION 97 9785,0-86,0 294, 21,5 0,4 10,4 0,04 10.8 98 9786.0-87.0 813, 23.9 0,3 11,1 0,03 11,4 99 9787,0-88,0 305, 22)3 0,5 7,9 0,06 8,4 100 9789,0-90,0 502, 20,6 2,2 6,6 0,33 8,8 9791,0-92.0 101 9792.0-93,0 495, 19.7 0,8 I2,7 0,06 13,5 102 9793,0-94,0 432, 19,9 0,3 7,4 0,04 7,7 SF' SST STN OLD FLU SST TN VF-GRAN SP STN OLD FLU SAME SAME/F'BL SAME/F'BL SAME SAME SAME SAME SST TN UF-FGR SSLTY PYR SP STN OLD FLU SST VF-FGR/UCGR SSLTY PYR STN GLO FLU TN VF-MGR SSLTY PYR STR LT SF' SSLTY PYR INCL L~' INCL LT INCL LT SSLTY PYR LT SSLTY PYR SF' STN GLD FL SST TN VF-FOR GLD FLU 2,75 SAME 2,70 SAME 2,75 SAME 2,68 SAME 2,68 SST TN VF-PBL SP STN GL[~ FLU 2,73 SAME/GRAN 2,71 SAME 2,70 SST TN VF-PBL SP STN GLO FLU 2,75 SAME NO SAMPLE 2,69 SAME 2,69 SAME/ORAN SSLTY PYR Theie armlyMi, oplrdonl or interpret~tlon~ ale bared on obmrv~tionl and nmter~ll ~uppUed by the clJ~t to whom, and foe whom excludve and confidential use. thh relxxt il made, The Inte~p;eta~ion.~ o~ optniont SP STN INCL LT INCL LT CORE LABORATORIES, INC. Petroleum Ref. erPotr Engineering DALLAS, TEXAI PAGE 6 SOHIO ALASKA 'NIAKUK' 4 PETROLEUM CO, DATE : 5-MAR-85 FILE NO ~ 13993 FORMATION : LABORATORYI BAKERSFIELD DEAN-STARK CORE ANALYSIS SAMPLE NUMBER tO3 104 105 106 107 108 109 110 111 112 '.13 115 116 117 118 119 120 121 DEPTH PERM MD He FEET HORIZ Ka F'OR 9797,0-9B,0 649, 23,0 9798,0-99,0 192. 22,1 9799,0- 0,0 315, 22,7 9800.0- 1.0 81. 17.8 9801,0- 2,0 95, 18,0 9802,0- 3,0 465, 21.4 9803,0- 4,0 653, 23,1 9805.0- 6.0 538. 21,4 9807.0- B.O 1.1 15,5 9806,0- 7,0 402, 23,5 9808.0- 9,0 290, 24,3 9810,0-11,0 334. 24,9 9831,0-32,0 0,04 6.1 9832,0-33,0 0,23 3,7 9833,0-34.0 <0,01 3.1 9834,0-35,0 0,10 3.9 9035,0-36,0 0,02 4.4 9836,0-37,0 13, 4,4 9837,0-38,0 17,. 17,7 OILZ WTRZ O/W TOTAL GRAIN PORE PORE RATIO LIOUI[t DEN C DESCRIPTION O,B 17,2 0,05 1S,O 2,65 SST TN VF-PBL SSLTY PYR INCL LT SP STN OLD FLU 0,3 38,6 0,01 38,9 2,75 SST GY-TN VF-FOR SSLTY PYR INC' ~, LT SP STN OLD F 0,2 23,2 0,01 23,4 2,74 SAME 2,8 22,8 0,12 25,6 2,89 SST TN VF-MOR SSLTY PYR LT SP STN OLD FLU 4,3 22,5 0,19 26,B 2,77 SST TN- VF-MOR SSLTY PYR INCL LT SP STN OLD FLU 9,2 26,1 0,35 35,3 2,70 SST TN VF-ORAN PYR INCL LT SP STN OLD FLU 5,5 14,1 0,39 19,6 2,71 SST TN VF-CGR SSLTY LT SF' STN OLD FLU 5,0 12,4 0,40 17,4 2,76 SAME/MOR 0,6 17,0 0,04 17,6 2,74 SST TN VF-FOR SSLTY PYR INCL LT l SP STN GLD FLU 2,0 23,7 0,08 25,7 2,76 SAME/MGR 5,2 28,8 0,18 34,0 2,71 SAME 0,8 13,6 0,06 14,4 2,66 SAME 14,5 3,6 4,03 18,1 2,84 SST TN-OY VF-FOR SSLTY PYR IN[ ~ LT SP STN GLD F 4,.5 50,9 0,09 55,4 2,71 SLTST TN-GY VF-FOR SDY LAM PYR LT STR STN OLD F 2,0 60,5 0,03 62,5 2,69 SLTST TN LT SP STN DGLD FLU 16,9 40,4 0,42 57,3 2,70 SLTST TN FRAC PYR LT SP STN DOLD FLU 18,5 26,5 0,70 45,0 2,80 SLTST OY-TN PYR LT STR STN DGL~ FLU 35,2 8,9 3,96 44,1 2,85 SLTST TN VFOR SDY LAMS FRAC PYR LT STN DGLD FLU 2,3 3,5 0,66 5,8 2,73 SST GY-TN VF-FOR SBLTY PYR INCL LT SP STN OLD F Theie af~lyse,, opiniont or Interprelallon~ are baled on obm~vationi ~nd mlterlah lupplbd by the eJieat to wbowt, ind f(x whoe~ exdudYe and confldenthl uae. tlgB report le mtde. The Interpfetlflion~ of opinions expressed represent the hell judgmeflt of Core IJboratoHes, Inc. (tH errors and ombdom excepted; trot Corn L~boratork~ lac. mud itt officers and emptoy~ee, mtmmw no foqx)Miblitty and make no wa.anty or SOHIO ALASKA PETROLEUM CO, "NIAKUK' 4 CORE LABORATORIES, INC. Petroleum Retervolr Engineering DALi. A1. TIdAl DATE ; 5-MAR-B5 FORMATION DEAN-STARK CORE ANALYSIS PAGE 7 FILE NO ~ 13993 LABORATORY, BAKERSFIELD SAMPLE DEPTH PERM MD NUMBER FEET HORIZ Ka 122 9838.0-39.0 62, 123 9840,0-41,0 321, 24,1 124 9841.0-42.0 78, 20,6 125 9842,0-43,0 142. 21,4 126 9843.0-44.0 27. 16,5 He POR .21,6 OIL% WTR% O/W TOTAL -GRAIN PORE F'ORE RATIO LIQUID DEN C 3,1 0,6 5,17 2,4 0,7 3,43 3,5 0,3 11,67 1,5 4,9 0,31 7,0 5,9 1,19 DESCRIF'TION 127 9845,0-46.0 113. 21 128 9846.0-47.0 58, 18 129 9847,0-48.0 121, 22 130 9848.0-49.0 97, 21 131 9849.0-50,0 137. 22 132 9850.0-51.0 175, 23 133 9851,0-52,0 316. 24 134 9852.0-53.0 222, 21 135 9853,0-54,0 550. 23 136 9854,0-55,0 648. 23 ~37 9855,0-56,0 290, 20 "'~"138 9856.0-57.0 308. 21 139 9857,0-58.0 320, 22 140 9858.0-59.0 161. 22 141 9859,0-60.0 99, 21 ,3 4,6 0,2 23.00 ,9 5,2 6,2 0,84 .3 1,7 6,6 0,26 ,3 5,8 1,5 3,87 ,6 5,8 8,8 0.66 ,2 2,9 1,7 1,71 ,3 4,1 10,8 0.38 ,7 8,5 6,0 1,42 ,3 3,1, 5,1 0.61 ,5 0,1 2,6 0,04 ,8 2,8 2,7 1,04 ~4 1,8 1,4 1,29 ,2 2,7 13, o ,5 8,1 1,5 5,40 142 9860,0-61.0 65, 20 143 9861.0-62.0 205, 21 144 9862,0-63,0 190, 22 145 9863.0-64.0 138.' 21 146 9864,0-65,0 138) 21 147 9865,0-66,0 325, 23 148 9866,0-67,0 180, 22 149 9867.0-68.0 301. 23 150 9868,0-69.0 341, 24 ,9 10,2 2,6 3,92 ,5 11,0 2,6 4,23 ,1 11,6 2,6 4,46 .4 16.7 0,3 55,67 ,8 8,9 2,8 3.18 ,2 13.6 0,6 22,67 ,0 11,1 3,1 3,58 ,5 ]1,8 2,4 4,92 ,1 4,7 6,2 0.76 These analyse,, opiniona or Interpretitlon~ are bae~! on ob#rvation, expressed relnesenl Ihe beet judimefll of Core IJboretotie., Inc. (aU and ma~eHala r~pplled errorl and omMIoM by the ~ te wlmm, aud fm wl,e~e exdudve and confidential urn, this repemt h nmde. The imerl~etotion.~ or opinions e~ee~d); Mit C~ ~lX~Orlel. lac. e~ It! of*flcerl and emo~l. 3.7 2,69 SST TN VF-FBR SSLTY F'YR INCL LT SP STN OLD FLU 3,1 2.69 SAME ~ 3,8 2,71 SAME 6)4 2,69 SAME 12.9 2.89 SST BY-TN VF-FBR SSLTY PYR LT BP STN OLD FLU 4,8 2.70 SAME 11,4 2,74 SAME 8,3 2,68 SAME 7.3 2.68 SAME 14,6 2,69 SAME 4,6 2,71 SAME 14,9 2,69 SAME 14,5 2,78 SAME 8,2 2.74 SAME 2,~ 2.73 SAME 5,5 2,81 SAME 3,2 2,78 SAME 2,9 2.75 SAME 4,0 2,71 SAME 9,6 2,72 9ST OY-TN I/F-FOR 9SLTY PYR LT SP STN YEL FLU 12,8 2,71 SAME 13,6 2,75 SAME 14,2 2.71 SAME 17,0 2,75 SAME 11,7 2,70 SAME 14,2 2,72 SAME 14,2 2.70 SAME 14,2 2,75 SAME 10,9 2.65 SAME CORE LABORATORIES, INC. Petroleum Retervotr Engineering PAGE B SOHIO ALASKA PETROLEUM CO. "NIAKUK" 4 DATE t 5-HAR-85 FORMATION ~ FILE NO ! 13993 LABORATORY~ BAKERSFIELD DEAN-STARK CORE ANALYSIS SAMPLE DEPTH PERM HD He NUMBER FEET HORIZ Ka POR 151 9870,0-71,0 76. 19,1 '52 9871,0-72,0 166. 22,0 '~'153 9872.0-73.0 365, 24,2 154 9873,0-74,0 255, 23.3 155 9874.0-75,0 317, 23,5 OIL% WTR% O/W TOTAL GRAIN PORE PORE RATIO LIQUID DEN C DESCRIPTION 10,4 0,7 14,86 11,1 4,3 6,1 0,70 10,4 8,4 1,6 5,25 10,0 10,1 1,0 10,10 11,1 11,4 0,7 16,29 12,1 156 9875,0-76,0 56. 23,1 10,4 0,6 17,33 11,0 157 9877,0-78,0 424, 24,1 10,7 0,6 17,83 11,3 158 9879,0-80.0 53, 21,1 11,4 0,6 19,00 12.0 159 9882.0-83o0 42. 20,4 10,4 0,8 13,00 11,2 160 9884,0-85.0 65, 21,9 10,7 0,7 15,29 11,4 161 9885,0-86.0 6.7 17,3 10,4 0,9 11,56 11,3 162 9890,0-91+0 11, 16,9 15,4 0,9 17,11 16,3 163 9893.0-94.0 B.9 15.7 12,6, 2,5 5,04 15,1 164 9895,0-96.0 10,0 18,3 13,2 0,8 16,50 14,0 .~_.65 9896.0-97+0 13. 18.3 10.8 4,1 2,63 14,9 166 9898,0-99o0 18. 20.9 12,2 0,7 17.43 12,9 167 9899.0- 0.0 15, 19,6 12,9 0,6 21,50 13,5 168 9900,0- 1.0 33. 21,4 13,1 0,7 18,71 13,8 169 9901.0- 2.0 43. 21,5 12,4 0,7 17,71 13,1 170 9902.0- 3.0 4,9 17,5 14,9 1,3 11,46 16,2 171 9903+0- 4,0 11. 18,4 13,9 1,9 7,32 15,.8 172 9904,0- 5.0 3,2 17,0 12,6 4,5 2,80 17.1 173 9905.0- 6.0 6.7 17,8 14.5 1,8 8,06 16,3 174 9906,0- 7.0 2,6 13,3 15,9 0,8 19,88 16,7 175 9907.0- BoO 39. 1B,B 14,1 1,2 11,75 15,3 176 9908,0- 9.0 46. 20,2 11,8 2,7 4.37 14,5 177 9909.0-10.0 66. 21,4 12,3 1,7 7,24 14.0 178 9910,0-11.0 49, 21,3 14,0 3,3 4,24 17,3 2,84 SAME/FRAC 2,69 SAME 2,69 SAME 2.76 SAME 2,75 SST TN VF-MGR SSLI'Y YEL FLU 2,72 SST-TN VF-FOR SSLTY YEL FLU 2,68 SST TN VF MGR SSLTY YEL FLU 2,71 SAME 2,71 SST TN VF-FGR SSLTY YEL FLU 2.69 SAME 2,93 SAME 2,80 SAME 2,78 SAME 2.67 SAME 2,66 SAME 2.66 SAME 2,67 SAME 2+68 SAME 2,66 SAME 2,66 SAME 2,67 SAME 2.69 SAME 2,73 SAME 2.96 SAME 2,72 SAME/F'YR FILLED FRAC 2,65 SAME 2.67 SAME 2.65 SAME PYR LT PYR LT PYR LT F'YR LT Them mnaly~es, opinions of interpretations are braced on obeetvmtionl rand ~terhls mu~lkd by I~ ~t ~ w~,~d fm w~ exdudve and ~n~ent~l u~. t~a ~e~t Il ~de. The Interptetmtlon~ of oplninnl exptes~d re~e~nt t~ ~gt Judgment ~ Core ~mtorkm. Inc. fall effort and om~ ex~); ~t C~ ~t~, i~. m~ Its o~rm and emp~el, n~ ~ re~n~lUty and ~ke no warranty or re,tantalUm, mm to t~ ~ucli~ly, ~o~ o~mt~m, m ~ofitmbknem of any off, ps m ~ ~ ~ m ~ b ~~n w~h wM~ ~ ~t b ~d m ve~ ~. -.. SF' STN SP STN SP STN BP BTN gOHIO ALASKA PETROLEUH CO, 'NIAKUK* 4 CORE LABORATORIES, INC. Petroleum Retervoir Engineering DA t.i. AJ, TIXA! PAGE DATE t 5-MAR-85 FILE NO ~ FORMATION t LABORATOR~f DEAN-STARK CORE ANALYSIS 13993 BAKERSFIELD SAMPLE DEPTH PERM MD NUMBER FEET HORIZ Ka He OIL% WTR% O/W TOTAL GRAIN F'OR PORE PORE RATIO LIQUI[t DEN C DESCRIPTION 179 9911,0-12,0 '.80 9912,0-13.0 '~181 9914,0-15,0 182 9915,0-16.0 183 9916,0-17.0 184 9917,0-18,0 185 991B.0-19.0 186 9919,0-20.0 187 9920,0-21.0 26. 55, 34. 19,4 i2,1 3,5 3,46 15,6 2,B4 20,8 11,7 2,6 4,50 14,3 2,68 20.2 22,0 6,3 3,49 28,3 2,65 3,0 16,4 19,0 0,4 47,50 19,4 2,65 0,85 14,4 16,3 5,1 3,20 21,4 2,66 1,4 15,1 16,6 4,0 4,15 20,6 2,65 5.0 17.3 17.5 2,1 8,33 19,6 2,65 0,51 9,9 12,0 13,2 0,91 25,2 2,65 0,23 11,7 13,0 11,2 1,16 24,2 2.66 188 9921,0-22.0 0,02 4,8 t89 9922,0-23,0 0,06 6,7 190 9923,0-24o0 0.06 9,1 13,~ 38,6 0,35 52,1 2,66 i 7,6 23,0 0,33 30,6 2,66 13,3 13,9 0,96 27,2 2,66 191 9924,0-25.0 <0.01 4,6 26,2 39.5 0,66 65,7 2,69 192 9925,0-26.0 0,39 10.7 26.3 0'4 65,75 26,7 2,65 193 9927.0-2B.0 0.21 4,0 9,9 67,7 0,15 77.6 2,73 194 9929,0-30.0 0.05 5,4 20.0 41,8 0,48 61,8 2.67 195 9930.0-31.0 <0.01 5,4 11,6 31,1 0,37 42,7 2,90 196 9931,0-32,0 0,04 7,0 0,3 JO.7 0,01 31,0 2,71 197 9932.0-33.0 0.15 8,2 7,0 20,9 0,33 27,9 2,65 SAME/SLT INCL SAME SST GY VF-FGR SSLTY SLT INCL F" LT SP STN BLD F SST' TN-BY VFGR SSLTY PYA LT SP STN BLD FLU SST GY TN VFBR SSLTY PYA LT SP STN BLD FLU SAME SST TN-GY VFGR SSLTY PYA LT SP STN OLD FLU SST TN-BY VFGR SSLTY PYA LAMS LT STN VDGLB FLU SST TN-BY VFGR SSLTY PYA LT STN .:. VDGLLt FLU SST GY UFGR SSLTY PY'R LAMS NO VIS STN NO VIS FLU SST GY VFGR SSLTY SLT LAM PYA LT STR STN IIOL[~ FL ,, SST TN-BY VFGR SLT LAMS PYA LT STR STN DGLI~ FLU SST TN-BY UFOR SSLTY SLT STR PYA L.T STR STN VDOL SST OY-TN VFGR SSLTY SLT INCL F'YR LT SP STN OLD SLTST GY FRAC PYA NO VIS STN NO VIS FLU SAME SAME SLTST GY PYA LT STR STN VDOLD FLU SLTST TN-BY F'YR LAMS LT STR STN DGLD FLU Them analys~s, opmioflt or inte~pfetatlofl0 are based on obmrvutions and materials tuppIled by th ~ to ~.and fm wb ex. alu and mnfldenlhl uM, t~, re~t I~ ~de. The imerpfetatlon~ or opin~n, ex~e~d ~pre~flt I~ ~H judgment of Core b~mlor~s, Inc. (~U ffmrs and o~ e~; ~ ~ ~~. I~. e~ ~s offi~rs and emp~l, a~ ~ ~~iUly and ~ke no wa~Janty or SOHIO-ALASKA PETROLEUM CO, "NIAKUK' 4 SAMPLE DEPTH PERM MD NUMBER FEET HORIZ Ka 198 9933.0-34.0 3.8 199 9935,0-36.0 <O,01 200 9936,0-37.0 0.13 201 9938,0-39.0 0,03 202 9946.0-47.0 0.06 CORE LABORATORIES, INC. Petroleum Reservoir Engineering DAL. LAS~ TIXAI PAGE 10 DATE ! 5-MAR-85 FILE NO ! 13993 FORMATION t LABORATORY! BAKERSFIELD DEAN-STARK CORE ANALYSIS He OIL% bJTR% O/W TOTAL GRAIN POR PORE PORE RATIO LIQUII~ DEN C 12,9 23.2 1,6 14,50 24,B 2,6B SLTSTN TN F'YR LAMS LT SP STN GLO FLU 8,9 8,4 20,2 0,42 28,6 2,64 SLTST GY CARS INCL PYR NO VIS r'q NO VIS FLU 7)3 30,8 13,2 2,33 44,0 2,65 SLTST TN-GY PYR LT STR STN DGLD FLU 5,0 3,0 21,1 0,14 24)1 2,60 SLTST BY PYR LAMB NO VIS STN NO VIS FLU 5,B 1,1 30,1 0,04 31,2 2,66 SAME DESCRIF'TION SAMPLE DESTROYED IN CENTIFUGE I Them analyte~, opinion, or lnterlnetltlonl ire b~d on oblervltion~ ind rntt~t~.l~ tupplkd by t~ ~mt ~ w~. ~d ~m w~ exdud~ and mnfldentbl u~. tM~ re,ri b ~de. The Inlerpfet,lt(m~ or opininn= expre~d re~emn[ I~ ~lt ju~e~ ~ Co~ ~fatorki. Inc. (ill ermfl and ~~ e~; ~ ~ ~t~. !~. i~ ~ offimrt and emplo~t. I~ ~ r~m~lUty a~ ~ke no ~Hanty Gl SOHIO ALASKA PETROLEUH CO. 'NIAKUK' 4 PRUDHOE BAY FIELD UMIAT MERIDIAN, ALASKA VERTICAL DATA , SAMPLE NUMBER DEPTH FEET PERM MD VERT Ka I 9600,0- 1,0 399, 2 9601,0- 2,0 146, 3 9602,0- 3,0 102, 4 9603,0- 4,0 83, 5 9604,0- 5.0 3,6 6 9606,0- 7,0 747, 7 9607,0- 8,0 141, 8 9608,0- 9,0 9 9609,0-10,0 CORE LABORATORIES, INC. Petroleum Rejervoir Engineering 10 9610,0-11,0 11 9611.0-12.0 12 9614,0-15.0 DATE FORMATION DRLG, FLUIDt LOCATION 5-MAR-B5 SEC,25-T12N-R15E DEAN-STARK CORE ANALYSIS He OIL% WTR% O/W TOTAL F'OR PORE PORE RATIO LIQUID 23,8 0,3 3,3 21,3 1,6 1,0 23,7 1,5 1.5 23,7 2,3 0,9 18.1 3,0 0,9 24,3 0,2 3,2 28,8 2.8 0,5 PAGE 1 298. 24,9 3,0 290. 25,6 3,2 183, 24,8 4,~ 236. 25.5 1,7 38, 21.4 3,5 13 9615.0-16.0 439. 25,0 5,0 14 9617,0-18,0 954, 24,3 3,1 FILE NO I 13993 LABORATORYt BAKERSFIELD ANALYSTS ! DLK AB ELEVATION { GRAIN LiEN C DESCRIPTION 0,09 3,6 2,74 1,60 2,6 2,82 1,00 3,0 2,74 2,56 3,2 2,67 3,33 3,9 2,65 0,06 3,4 2,67 5,60 3,3 2-,73 0,5 6.00 3,5 0,2 16,00 3,4 0.5 8.00 4,5 2,6 0,65 4.3 0,7 5,00 4,2 O, 8,33 5,6 1,5 2,07 4,6 15 9619.0-20.0 222, 23,7 3,1 0,6 5,17 3,7 16 9620.0-21.0 351. 22,3 3,3 0.9 3,67 4,2 SST DY VF-PBL SSLTY NO STN NO FLU SST OY-TN VF-FOR SSLTY PYR LT ' STN OLD FLU SAME SST TN VF-FGR SSLTY PYR INCL LT SP STN OLD FLU SST TN VF-GRAN SSLTY LT SP STN GLO FLU SST TN VF-PBL SSLTY SLT INCL LT SF' STN GLO FLU SST TN VF-FDR SSLTY PYR INCL LT SP STN OLD FLU 2.72 SAME 2,67 SST TN UF-FDR/VCDR ~SLTY LT SP STN OLD FLU 2.67 SAME/PYR INCL 2,67 SAME/PYR INCL 2,65 SST TN VF-GRAN SSLTY LT SP STN GLO FLU 2,70 SST TN VF-GRAN SSLTY LT SP STN GLO FLU 2,72 SST TN VF-DRAN SSLTY PYR INCL LT SF' STN OLD FLU 2,68 SST VF-GRAN SSLTY SLT INCL PYR INCL LT SP STN GL 2,74 SST TN UF-DRAN SSLTY PYR INCL LT SP STN OLD FLU 2,86 SST TN-OY VF-FGR SSLTY PYR INCL LT SP STN OLD F 2,76 SST DY-TN VF-CDR/DRAN SSLTY PYR 17 9621.0-22.0. 122, 22,0 0,5 2,5 0,20 3,0 18 9622.0-23.0 423. 23,3 2,2 0,9 2,44 3,1 Them analym, oplnlon~ of lntetptetlllonl ire hued on ob#rv~tlon~ and maletbh mpplled by the cl~et la where. ~1 [ae whom exdudve and confldent~l u~. tM. report Ii made. The Inierpret.lk)n~ or Dp,niGh, expreued repfeeenl the beet judgment o( Core LabMatofiee, Inc. (eH e.ors and omlMom exmlm~; bat Core Llibomtodes. Inc.. and Its offJeer~ end employee~, Imsme no teq)omlbllJty and make no wtffinty m CORE LABORATORIES, INC. Petroleum Re;ervoir Engineering DA L.L.A~. T~XAI PAGE 2 SOHIO ALASKA PETROLEUH CO. 'NIAKUK' 4 DATE : 5-MAR-85 FORMATION FILE NO ~ 13993 LABORATORYt BAKERSFIELD DEAN-STARK CORE ANALYSIS SAMPLE DEPTH PERM MD HUMBER FEET VERT K~ '-~.~ 19 9624,0-25,0 178, 20 9625.0-26.0 21 9627,0-28,0 22 9649.0-50.0 23 9660,0-61,0 24 9665.0-66,0 25 9669,0-70.0 26 9670,0-71,0 27 9671,0-72,0 28 9672,0-73.0 29 9674,0-75,0 30 9675,0-76,0 31 9677.0-78,0 32 9678,0-79,0 33 9681,0-82.0 He OILZ WTRZ O/W TOTAL GRAIN POR PORE PORE RATIO LIQUID LiEN C DESCRIPTION INCL LT SF' STN 24,5' 0,4 2,4 0,17 2,8 2,71 SST TN VF-CGR/BRAN SSLTY PYR INRL LT SF' STN BLD 113, 23.2 2,1 0,9 2,33 3,0 2,84 SST BY-TN VF-VCBR SSLTY PYR ZNCL LT SP STN BLD 383. 22,7 3,1 0,3 10,33 3.4 2,80 SST BY-TN UF-MBR/GRAN SSLTY PYR INCL LT SP STN 1,3 13,2 7,,0 1,5 4,67 8,5 3,06 SST TN-BY VF-CGR/BRAN FRAC BLT LAM PYR LT SP S 70. 24,0 1,9 0,5 3,80 2,4 2,72 SST TN VFBR/BRAN SSLTY PYR LT SP STN GLO FLU 97. 21,6 2,1 0,7 3,00 2,8 2,71 SST TN-BY VF-MGR/VCBR SSLTY LT SP STN OLD FLU 142. 23,3 2,B 0.2 14,00 3,0 2,73 SST TN-BY VF-PBL SSLTY PYR LT SP STN GLD FLU 257, 26.0 4,0, 1,2 3,33 5,2 2,71 SST TN-BY VF-HBR/BRAN SSLTY PYR LT SP STN BLD 194. 24,8 1,2 1,4 0,86 2.6 2,75 SST TN-BY VF-BRAN SSLTY PYR LT SP STN OLD FLU 231. 26,6 1,2 1,i8 0,67 3,0 2,73 SST TN VF-FBR SSLTY PYR LT SP ~fN GLO FLU 214, 20,1 2,3 0,9 2,56 3,2 2,81 SST TN UF-PBL SSLTY PYR INCL LT SP gTN OLD FLU 721. 24,8 1,6 2,9 0,55 4,5 2,70 SST TN UF-CBR/BRAN SSLTY PYR INCL LT SP STN OLD :90, 16,8 2,5 2,9 0,86 5,4 2,78 SST TN-BY VF-PBL SLTY PYR LT BP STN BLD FLU 129~ · 21,5 4,4 1,3 3,38 5,7 2,87 SST TN-BY VF-BRAN SSLTY PYR LT SP STN OLD FLU 49) 23,6 3,5 1,6 2,19 5,1 2,67 SST TN UF-BRAN SSLTY PYR INCL LT SP STN OLD FLU 196. 24,4 0.4 2,8 0.14 3,2 2,69 SAHE/PBL 34 9682.0-83,0 Them ,nily#e. oplnlone or Inlerprelellont are bimd on obufvitlonJ Ind mlteHill lupplled by the M lo wheal, lad foe whom excludve lind eonfldentbll ule. tide lepof! ii made. The Inletpret~llons or oplnk)nt expeimd telxemnl lb be~t JudlmeM of Corn LibMitmils. Inc. (iU errors an4 omlMom eXelpIM); but tees LlbonltmlN. lac. and Itt ommfs and empk)y, es.,mane no lelpomlbi~ly and mike no w~tmnty o~ CORE LABORATORIES, INC. Petroleum Retervotr Engineering Om~L&S, TIXAI PAGE 3 SOHIO ALASKA PETROLEUM CD, 'NIAKUK' 4 DATE ~ 5-MAR-B5 'FORMATION DEAN-STARK CORE ANALYSIS FILE NO ~ '13993 LABORATORY! BAKERSFIELD SAMPLE DEPTH PERM MD NUMBER FEET VERT Km 35 9683.0-84.0 165. 36 9684,0-85.0 37 9693.0-94.0 9694,0-95.0 39 9696.0-97.0 40 9699.0- 0.0 41 9700.0- 42 9712.0-13.0 43 44 9713,0-14,0 9714,0-15.0 9716.0-17.0 45 9717.0-18.0 46 97i9,0-20,0 9720.0-21.0 47 9727,0-28,0 48 9732,0-33.0 49 9733.0-34.0 50 9734.0-35.0 51 9735.0-36.0 He OIL% WTR% O/W TOTAL POR PORE PORE RATIO LIQUID 23,9 0,3 2,6 0,12 2,9 69, 23,3 0,7 3,3 0.21 4,0 604. 22,3 0,4 GRAIN DEN C 2,69 2,78 2,73 55, 17,4 1,4 4,9 0,29 6,3 2,96 36, 20,8 2,0 0,7 2,86 22. 21~2 2,0 0,7 2,86 2,7 2,69 2,7 2,68 19, 21.6 0,5 2,0 0,25 2,5 2,69 131. 26,4 0,9 1,4 0,64 2,3 2,69 eS, 23,2 1,~ 0,7 2,43 109, 22,7 0,4 3,3 0,12 282, 22,7 0,3 1,9 2.4 2,69 3,7 2,80 DESCRIPTION 218, 21,0 0.4 3,2 131. 20,9 3,1 0,9 0,01 3.2 31,6 51,1 0.08 lO.B 7,2 6,7 5,2 15,7 1,9 1,4 2,9 15,0 5,g 1,7 SST LT SAM SST LT SS ST SS GL SST SP SST SP SST GLD SST 6LD SST TN UF-FOR/COR SSLTY PYR INCL SP STN GLO E/MGR ~ OY-TN VF-ORAN SSLTY PYR IN~L SP STN OLD T OY-TN YF.PBL SSLTY PYR LT SP N GLO FLU T TN-GY VF-PBL SSLTY LT SP STN D FLU TN VF-FGR SSLTY PYR INCL LT STN GLO FLU TN VF-FGR/GRAN SSLTY PYR LT STN GLO FLU TN VF-GRAN 5SLTY LT SP STN FLU OY-TN VF-ORAN SSLTY LT SP STN FLU GY-TN VF-PBL SSLTY PYR INCL Them .nab/m, opink)~ or Inlerl~etetlone ere baled on obmr~tlone and mJterlall I~pl~lkKI b), tim M ~ wh,m~.lmd fee who# exdudve and confldemlal ule, tldl fel)eet Ii made. The Intmpfetations o, opinlont exl~elmd repremnt the belt Judlment ag CoN LlbeeltoHle. Inc. (mU me0~l ami Omlllleel ~; III1Ceel LIMNliIMle~ leto. emi Itc offtee~e an.4 employeee, mamma aa ItNmMIbilhy and mike no Wl~anty m LT SP STN OLD F NO SAMPLE 0,16 2.2 2,70 SST TN VF-PBL SSLTY PYR INCL LT SP STN OLD FLU 0.12 3,6 2,72 SAME NO SAMPLE 3,44 4.0 2,69 SST TN UF-PBL SSLTY PYR INCL LT SP STN OLD FLU 0,62 82,7 2,72 SLTST GY PYR ZNCL LT STN OLD FLU 1,07 13,9 2,70 SST TN VF-FOR SSLTY PYR INCL LT STN OLD FLU 1,36 3,3 2.83 SST TN UF-FGR SSLTY PYR INCL LT SP STN OLD FLU 3,41 7,5 3,26 SST TN-~Y VFOR SSLTY PYR LT ~P SOHIO ALASKA PETROLEUM CO, 'NIAKUK' 4 CORE LABORATORIES, INC. l'e~role~m Reservoir E~ineeri~ D A I.. L.A B, TIEXA~ PAGE DATE : 5-MAR-85 FILE NO ~ FORMATION : LABORATORYt [lEAN-STARK CORE ANALYSIS 13993 BAKERSFIELD SAMPLE DEPTH: PERM MD He OILZ WTRZ O/W TOTAL GRAIN NUMBER FEET VERT Km F'OR PORE PORE RATIO LIQUID DEN C DESCRIPTION ~----~ 52 9736,0-37,0' 4,2 20,9 2,9 0,6 4.83 3,5 2,71 53 9737,0-38,0 3,9 21.8 2,4 0,6 4,00 3,0 2,68 SAME 54 9738,0-39.0 20, 23,9 2, I O, 6 3,50 2,7 2.68 SST LT S 55 9739,0-40,0 164. 23,8 2,0 1.0 2.00 3,0 2,82 SST LAM 56 9740.0-41.0 351. 26,2 2,4 0,5 4,80 2.9 2,80 SST LT S 57 9741.0-42,0 109, 26,0 2,6 0,8 3.25 3,4 2,68 SAME 58 9742.0-43.0 143, 22,9 1,8 0,6 3,00 2,4 2,71 SST OLD 59 9743.0-44.0 72. 24~0 2,0 '0,5 4,00 2.5 2,73 SST 60 9744.0-45,,0 149, 24,5 2,4 0,6 4,00 3,0 2,68 1 61 9745,0-46,0 88, 25,0 1,4' 0,8 1.75 2,2 2,73 ~_~.~ 62 9746,0-47,0 84, 24~2 2,1 0,5 4,20 2,6 2,72 63 9747,0-48.0 29. 23,4 2,1 0,7 3, O0 2,8 2,68 64 9748.0-49.0 28. 22.5 1.5 1,0 1,50 · 65 9749,0-50.0 3,7 18,6 1,2 66 9750.0-51.0 - 32,, 23,9 1,6 67 9751 , 0-52 , 0 309, 19.7 3 , 4 STN GLO FLU SAME TN VF-CGR/PBL SSLTY SLT LAM P STN GLD F OY-TN VF-CGR/ORAN SSLTY SLT PYR LT SP GY-TN VF-MGR/GRAN SSLTY PYR P STN OLD 2,5 2,69 GLD FLU 1,4 0,86 2,6 2,79 SAME 0,3 5,33 1.9 2,70 SAME/FGR 0,9 3.78 4,3 2,66 SST TN-GY VF-PBL SSLTY PYR INCL LT SP STN GL[I F TN VF-FGR SSLTY PYR LT SP FLU TN VF-FGR SSLTY PYR INCL LT SP STN OLD FLU SST TN UF-FGR SSLTY PYR INCL LT SP STN OLD FLU SAME SAME SST GY-TN VF-COR SSLTY PYR LT ~ STN OR FLU SST I'N VFGR SSLTY PYR LT SP STN STN 68 9753.0-54.0 67. 16,8 0,6 3,4 0,18 4,0 2.66 SST GY-TN VF-PBL SSLTY PYR INCL LT SP STN OR FL 69 9754.0-55.0 39. 22,5 1,0 0,8 1,25 1,8 2,73 SST TN VF-MGR/GRAN SSLTY F'YR LT SP STN OLD FLU 70 9755.0-56.0 199. 25,0 1,4 O,B 1,75 2,2 2,68 SST TN VF-MGR SSLTY PYR LT SP STN GLD FLU Them analyses, opinlonl m Inlerp, latlonm are he~ed on obm~v~tiom and nm,dab msPPlled by the ~ lo wh~n.~ t'ae whoee exdudve and confidential mt,. thim ~elx~t h rhode. The Inte~p~etmlion.~ o~ opininne Irma, aim4 tamimeil II,him bi Imidmmd, at ~ ~"'d~f', I I~tnl'ldl In,, (mil Iffnfm d,f~ md ellJrle~lldd~'. ~ b Wiil)~l~ltflelll_ llle. Ill/cl Itl offleefl and emolovHI, lllL~ IlO rell)ol~iJbllllv and make no wlrflrltv of SOHIO ALASKA PETROLEUM CO, 'NIAKUK' 4 CORE LABORATORIES, INC. Petroleum Retervoir Enslneering DALI. AB. TEXAI PAGE 5 DATE t 5-MAR-B5 FILE NO ! 13993 FORMATION t LABORATORY! BAKERSFIELD DEAN-STARK CORE ANALYSIS SAMPLE DEPTH~ PERM MD \ NUMBER FEET VERT Ka 71 9756,0-57,0 72, "~"" 72 9757,0-58,0 128. 73 9758.0-59.0 230. 9761,0-62,0 74 9769,0-70,0 127, 75 9775.0-76,0 159, 76 9776.0-77,0 73. 77 9777,0-78.0 35, 78 79 80 81 .~..~ 82 83 84 9778,0-79,0 31 , 9779.0-80,0 12, 9780,0-81 ,0 124, 9781,0-82,0 84 · 9782,0-8:3.0 4 , 1 9783.0-84.0 13, 9784,0-85°0 59, 85 9765,0-86,0 40. 86 9786.0-87,0 198, 87 9787.0-88.0 1261 88 9791.0-92.0 45,. 89 9798.0-99.0 32, He GRAIN POR DEN C 23,4 1,0 0,6 1,67 1,6 2,71 SST TN VF-HGR/GRAN SSLTY PYR LT SP STN GLD FLU 24,2 0,2 2,8 0,07 3,0 2.70 SAME 23,9 1,5 0,7 2,14 2,2 ' 2,70 SST TN VF-GRAN SSLTY PYR INCL LT SP STN GLD FLU NO SAMPLE 20,4 0,4 !,5 0,27 !,9 2,73 SST VF-MGR/GRAN BSLTY PYR LT SP STN GLD FLU 20,5 2,0 0.3 6,67 2,3 2,76 SST OY-TN VF-CGR/PBL SSLTY PYR LT SP STN OLD F '~" 22,1 0,3 1,8 0,17 2,1 2,72 SST TN VF-MGR/GRAN SSLTY PYR LT SP STN OLD FLU 22,2 1,7 1,6 1,06 3,3 2,68 SST TN VF-FGR SSLTY PYR INCL LT SP STN GLD FLU 22,5 0,2 3,2 0.06 3,4 2,68 SAME 19,9 0,;[ 3,1 0,03 3,2 2,76 SAME 23,1 O,~i' 2,9 O, 14 313 2,77 SAME/I/CGR 22,9 I , 9 O, 2 9,50 2.1 2,7.5 SAME 18,2 0,6 7,5 0.08 8,1 2,72 SAME 21,1 2,7 12,4 0,22 15,1 2,68 SAME j, 20,1 0)5 15,'4 0,03 15)9 2,71 SST TN VF-MGR/GRAN SSLTY PYR LT SP STN OLD FLU 21,5 1,7 15,2 0,11 16,9 2,73 SST TN VF-MOR/GRAN SSLTY PYR LT SP STN GLD FLU 23,7 0,8 10,6 0,08 11,4 2,70 SST TN VF-VCGR SSLTY PYR LT SP STN GLD FLU 23,7 2,0 6,0 0,33 8,0 2,77 SST TN VF-MOR/F'~L SSLTY PYR LT SP 5TN GLD FLU 19,9 1,6 1.,3 1,23 2,9 2,:BI SST TN VF-FGR/VCGR SSLTY PYR LT SP STN GLD FLU 23.3 1,4 0,5 2,80 1,9 2,74 SST OY-TN VF-FGR SSLTY PYR LT SP STN GLD FLU OILZ HTR~ O/W TOTAL PORE PORE RATIO LIQUID DESCRIPTION The# an~lym, oplnlonl of bttefl~ettllonl itl ~ on obm~tlong and ~lehll m~ by I~ ~m m ~.~ ~m w~ ex~dv, and mnfldenthl urn. t~t fe~t I, ~e. ~e Imerpfel~t~nq m oplnk, nt expreMd repremnl tM ~ll Ju~em ~ Core ~llOrkl, Inc. (aU ermr~ and om~ e~; ~ Cm ~~, I~. i~ It~ O~mre end empire. Im~ ~/~iUty a~ ~ke ~ wifianty m SOHIO ALASKA PETROLEUM 'NIAKUK' 4 CORE LABORATORIES, INC. Petroleum Reservoir Engineering D A L.L.A~. T~XA~ PAOE 6 DATE I 5-MAR-B5 FILE NO i 13993 FORMATION ! LABORATORYI BAKERSFIELD DEAN-STARK COdE ANALYSIS SAMPLE DEPTH NUMBER FEET 90 9799,0- 0,0 91 9800,0- 1,0 92 9801,0- 2,0 93 9803,0- 4,0 94 9805,0- 6,0 95 9806,0- 7,0 96 9807,0- 8,0 97 9808,0- 9,0 98 9810,0-11,0 99 100 101 102 103 104 105 106 107 108 9831,0-32,0 9832,0-33,0 9833,0-34,0 9834,0-35,0 9835,0-36,0 9836,0-37.0 9837,0-38,0 9838,0-39,0 9840,0-41,0 9841,0-42,0 PERM MD He OILZ WTR~ O/W TOTAL GRAIN ..' VERT Ka POR PORE PORE RATIO LIQUID [tEN C DESCRIPTION .., 4,8 .20,7 2,6 0,5 5,20 3,1 2,88 SST BY-TN VF-FGR SSLTY PYR INCL LT SP STN OLD F 23, 23,6 2,2 0,5 4,40 2,7 2,76 SST TN VF-MBR SSLTY PYR LT SP .~' '~i GLO FLU 2,5 18,4 4,3 0,6 7,17 4,9 2,69 SST TN UF-MBR SSLTY PYR LT SP STN GLO FLU 431,. 23,9 0,5 6,8 0,07 7,3 2,73 SST TN VF-HGR/VCGR SSLTY PYR LT SP STN GLO FLU 50) 24,4 3,2 7,6 0,42 10,8 2,73 SST TN VF-CGR SSLTY PYR LT SP STN GLO FLU 0,09 11,1 12,3 3,9 3,15 16,2 2,68 SST TN VF-FGR BLT LAMS PYR INCL LT SP STN OLD FL 48, 22,4 1,3 '0,3 4,33 1,6 2,74 SAME/MBR 198, 26,3 1,8 15,5 0,12 17,3 2,71 SAME 41,. 25,3 2,0 11,0 0,18 13,0 2,66 SST VF-MGR/VCGR SSLTY PYR INCL LT , SP STN OLD FL 0,07 11.6 1,7 6,5 0,26 8,2 2,69 SST TN VF-FBR SSLTY PYR INCL LT SP STN GLO FLU 0,08 4,4 25,8 15,6 1,65 41,4 2,69 SST TN-BY VFI3R SLTY PYR FRAC L'r i' STR STN DGLD FLU <0,01 3,5 4,6 77,6 0,06 82,2 2,70 SLTST TN LT SP STN BOLD FLU <0,01 2,8 13,7 61,4 0,22 75,1 2,70 SLTST OY-TN PYR LT STR STN BOLD FLU <0,01 3,7 2,8 48,9 0,06 51,7 2,70 SLTST VFGR SOY STR PYR LT STR STN DGLD FLU <0,01 3,6 2,8 59,5 0,05 62,3 2,73 SAME 0,03 6,6 0,4 31,7 0,01 32,1 2,75 SST BY-TN VF-FOR SSLTY PYR INCL LT SP STN OLD F 235, 23,5 0,1 2,4 0,04 2,5 2,68 SST TN VF-FGR SSLTY PYR INCL LT SP STN OLD FLU 210, 24,1 0,4 3,1 0,13 3,5 2,69 SAME 60, 20,4 0,3 5,5 0,05 5,8 2.76 SAME Them ,naly~e~. opinions of Inlerl~etatlone ire baaed Orl obmrvallons and mate~llll lUl~lled by tim cBem to whom. nod fM who# excludve and confidential urn. tide report it mlde. The interpl'etltk)nt of opinionl expected fememnt the best iud~ment of Cme Llbol'ltot'Jel. Inc. (all e~rorl and ombltom e~__eel~ed); ~ Ceee Labomtodel. Inc. and Itl GroCers and emptoyeel, emma no ~ilily and make no w~anty M CORE LABORATORIES, INC. Petroleum Reservoir En;ineerinl DA L.t.A~, T~[XA~ PAGE 7 SOHIO ALASKA PETROLEUM CO. 'NIAKUK' 4 DATE t S-MAR-B5 FORMATION : FILE NO t 13993 LABORATORY{ BAKERSFIELD DEAN-STARK CORE ANALYSIS SAMPLE DEPTH. PERM MB NUMBER FEET VERT Ka He OIL% WTR% O/W TOTAL GRAIN POR PORE PORE RATIO LIQUID DEN C DESCRIPTION 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 · 126 127 ' 128 129 130 131 132 133 134 135 136 137 9842.0-43.0 38. 21,7 4,3 5,1 O, 9843,0-44.0 59. '21,1 1,0 5,6 9845,0-46.0 54, 21.1 0,3 11,9 O, 9846.0-47.0 25. 20,-0 0,5 8,3 O, 9847,0-48.0 20. 21.4 6,6 4,7 1, 9848.0-49.0 60. 21.9 0,4 14,3 O, 9849.0-50.0 92, 24,3 0,2 4,5 O. 9850o0-51o0 17, 22,0 2,0 15,1 O, 9851,0-52,0 111, 24.2 0.4 19,4 O, 9852.0-53.0 172. 20,2 0,2 11,4 O, 9853.0-54.0 54. 21,8 3,3 10,3 '0, 9854,0-55,0 85, 21,8 0,3 6,8 O, 9855,0-56,0 276, 21.7 0,6 4,7 O. 9856.0-57.0 228, 21,0 O,B 5,0 O, 9857.0-58o0 92, 21,3 0,7 2,9 0o 9858.0-59.0 75. 22,7 0,~' 5,7 O, 9859.0-60.0 57. 21.8 4,5 5.0 O, 9860,0-61.0 92. 21.4 5,3 5,~ 1, 9861.0-62.0 129. 22,3 6,6 5,& 1, 9862,0-63.0 163. 22,8 11,6 3.3 9863.0-64.0 137. 22,4 5,3 8,6 O, 9864,0-65,0 167, 23,6 7,5 9,4 O, 9865.0-66.0 66. 23,7 7,4 6,4 1, 9866,0-67.0 25, 21,1 7,3 8,5 O, 9867.0-68.0 109. 22.3 8,7 11,0 O, 9868.0-69,0 167. 24,5 9,8 6,2 1, 9899,0-99,0 5,9 19,7 9,0 6,5 1, 9900,0- 1.0 2,1 17,6 6,6 9,9 O, 9901.0- 2.0 B,8 20.4 5,7 B,2 O, B4 9,4 2,70 SAME 18 6,6 2,75 SST GY-TN VF-FGR SSLTY PYR LT SP STN OLD FLU 03 12,2 2,70 SAME 06 B,g 2,71 SAME 40 11,3 2,70 SAME 03 14,7 2,6B SAME 04 4,7 2,76 SAME 13 17,1 2,72 SAME 02 19,8 2.69 SAME 02 11,6 2,'B1 SAME 32 13,6 2.73 SAME 04 7,1 2,72 SAME 13 5,3 2,73 SAME 16 5.8 2,77 SAME 17 3,4 2.76 SAME 05 6,0 2,69 SAME 90 9,5 2,71 SST OY-TN UF-FOR SSLTY PYR LT SP 9TN YEL FLU 02 10,5. 2.71 SAME 18 12,2 2,74 SAME 52 14,9 2.71 SAME 62 13,9 2,72 SAME 80 16,9 2,72 SAME 16 13,8 2,71 SAME 86 15,8 2.70 SAME 79 19,7 2,70 SAME 58 16,0 2.69 SAME 38 15,5 2,67 SST TN VF-FGR SSLTY PYR LT SP YEL FLU 67 16,5 2.67 SAME 70 13,9 2,67 SAME Them an~lyms, opbdon~ es Inteqxet~tionl ese ~ on ~m~t~ and ~t~ m~ by t~ ~ ~ ~, ~ ~m ~ ex~d~ a~ mnfld~tbl ~, t~ ~e~t ~ ~e. ~e ~te~em~ns or optn~ng ex~d repremfll lb ~t Ju~m ~ Co~ b~torbt, Inc. (afl e~l a~ m~ ~; ha ~ ~t~, !~. t~ fit ommn and em~h I~ ~ r~mty a~ ~ke no ~fanty m STN SOHIO ALASKA 'NIAKUK' 4 PETROLEUM CO, CORE LABORATORIES, INC. Petroleum Retervolr Engineering DAI. LA~. TEXA~ PAGE DATE ! 5-MAR-85 FILE NO I FORMATION ~ LABORATORy~ DEAN-STARK CORE ANALYSIS 13993 BAKERSFIELD SAMPLE NUMBER 138 139 140 141 ' 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 DEPTH FEET 9902.0- 3.0 9903,0- 4.0 9904,0- 9.0 9905)0-11.0 9906.0- 7.0 9907,0- 8.0 9908,0-17.0 9909,0-10,0 9910,0-11.0 9911,0-12,0 9912,0-1300 9914.0-15.0 9915,0-16.0 9916,0-17,0 9917,0-18,0 9918,0-19.0 9919,0-20o0 PERM MD He OIL% WTR% O/W TOTAL GRAIN VERT Km POR PORE PORE RATIO LIQUID DEN C DESCRIPTION 1,7 16,9 11,4 6,9 1,65 18.3 2,65 1,4 16,8 8,4 9,6 0,87 18,0 2.66 1.2 17,4 9,2 9,6 0,96 1B,8 2.70 2)4 17,6 9,2 7,9 1,16 17,1 2,69 19, 23.9 6,1 4.7 1.30 10.8 2,74 22. 20.6 8,4 6.0 1,40 14,4 2,67 15, 21,0 8,2 4,6 1.78 12,8 2,66 4,5 19,1 10,2 3,3 3,09 13.5 2.80 0.48 15,6 5,6 8,6 0.65 14,2 2,75 158 18, 19.8 10,8 3,6 3,00 14.4 2,73 0,28 18,4 4,6 8,3 0,55 12,9 2,83 3.1 18,9. 21.2 2.2 9,64 23,4 2,66 1)2 15.7 7,6 8,9 0,85 16,5 2,65 1 .~,0 15,9 14,2 4,8 2,96 19,0 2,66 1.1 16,1 17,2 2,2 7,82 19,4 2,65 2,3 17,0 16,9 2,0 8,45 1B,9 2,66 0.01 7,7 9,3 18,5 0,50 27,8 2,68 9920,0-21.0 0.10 11.7 9,6 13,0 0,74 22,6 2,66 9921,0-22,0 <0,01 6.1 17,8 11.8 1,51 29,6 2,79 9922,0-23,0 .<0.01 7,5 6,6 18,4 0,36 25,0 2,66 9923,0-24.0 <0,01 8,5 10,2 9,9 1,03 20,1 2,66 SAME SAME . SAME SAME SAME SST TN VF-FOR SSLTY PYR LT SP STN YEL FLU SAME SAME SST TN VF-FGR SSLTY CARB PYR LT SP STN OLD FLU SST TN VF-MOR SSLTY LT STN OLD FLU SAME/SLT INCL SAME SST TN-OY VFGR SSLTY PYR LT SP STN OLD FLU SST OY-TN VFOR SSLTY PYR LT BP STN OLD FLU _~. · SAME SST TN-GY VFOR SSLTY PYR LT SP STN OLD FLU SST TN-OY VFOR SSLTY PYR LAMS LT STN VDOLD FLU SST TN-GY.VFOR SSLTY PYR LT STN VDGLD FLU SST GY VFGR SSLTY PYR LAMS NO VIS STN NO UIS FLU SST GY UFOR SSLTY SLT LAM PYR LT STR STN DOLD FL SST TN-GY VFGR SLT LAMS PYR LT STR STN DOLD FLU Them tnl~#t, oplnJont oc Inteqxetttiofll iwe bend on ob#rvith2nt ind rniterbill jupplJod by tlu abet to _qt~,~__., tnd rm whom exchsdve ind confldenthl urn, tld, repMt is mode. The imerpm0tk)n, m oplnkms expretied represefl! the belt judlmeM of Core bboflitorbs. Inc. (.U errors and omhdom mmoped); M Cee. Ltboritm~. le~;. ~.~ Itt omc, f~s .nd employ, inure, fi4) reqmeld)llJty and make no wlrslflty m SOHIO'ALASKA PETROLEUM 'NIAKUK' 4 CO. CORE LABORATORIES, INC. l'etroleum Reservoir £n~ineeri~ DA L.L. AI, TIXAI DATE : 5-MAR-85 FORMATION DEAN-STARK CORE ANALYSIS PAGE FILE NO : 13993 LADORATORY! DAKERSFIELD SAMPLE DEPTH PERM MD NUMBER FEET VERT Ka 159 9924.0-25.0 160 9925,0-26.0 161 9926.0-27.0 162 9927.0-28.0 163 9931,0-32.0, 164 9932.0-33.0 165 9933.0-34.0 166 9935.0-36.0 167 9936.0-37.0 168 169 993B,0-39,0 9946,0-47,0 He OIL% WTR% O/W TOTAL POR F'ORE PORE RATIO LIQUID GRAIN DEN C (0.01 5,0 4,8 34,6 0,14 39,4 2,66 0.03 5,3 36,5 10,1 3,61 46,6 2,70 0.46 6.4 1,2 40,6 0,03 41.8 3,07 <0.01 9,1 6,3 23,2 0,27 29.5 2,74 0.24 14.5 13.6 6.9 1,97 20,5 2,66 2.9 14,9 20,3 3,4 5,97 23,7 2,63 <0,01 4,2 B,1 37,9 0,21 46,0 2,65 <0,01 4,4 2,2 65,8 0,03 6B,O 2,73 0.02 7,5 28,8 14.1 2,04 42,9 2,65 I <0.01 4,7 2,2 20,5 0,11 22,7 2,64 <:0.01 6,9 0,5 27,5 0,02 28,0 2,66 DESCRIPTION SST TN-GY VFGR BSLTY BLT STR PYR LT STR STN VDGL SST GY-TN VFOR SSLTY SLT INCL [ ~ LT SP STN GLO SLTST GY NO ViS STN NO VIS FLU SLTST DY FRAC PYR NO VIS STN NO UIS FLU SLTST GY PYR LT STR STN VDGLD FLU SLTST TN-GY PYR LAMS LT STR STN DGLD FLU SLTST GY PYR INCL NO VIS STN NO VIS FLU SLTST DY CARS INCL PYR NO VIS STN NO UIS FLU SLTST TN-OY PYR LT STR STN DGLD FLU SLTST BY PYR LAMS NO VIS STN NO VIS FLU SAME '- T~m 0n01y~e,, opinJoM or Interpret0tfonf ire besod on obmvationl 0fid rrmerbls msppIkd by tho M to whom, end fM whom exdud~e Ind confldenthl use. thio ~epmt iu nude. The interprelstionq or opin~ns oumetmd femeuflt tim belt Iud,mere of Core l.abe~toflet, inc. I,ll errort m~d ombdom ~ M Ce~ l,,,Ix~, lin:. a~d it, olllcerl and employees, iNume Ilo rollx)Jl~bJltty and make no wu~fanty m i i i ........ - :.] iii i .. , , .. , , , , .. x *'~,/ x ''X X X~. ~ X 'X ~ X ~~X " ' ,,, ~ ~ ~ ~X '" ,,, , . ~X x~ . , ,, .... p ~ , . , ,, ,, , , .... I I II ] II ..... L ' " : ~ BAY ~ / ii - ,, , i ,, , ,, , -, e.e 4.e 8.8 12.e 18.e 28.8 24.8 ...... ,., ...... POROSITY:PERCENT .... CORE LABORATORIES, INC. Petroleum ReJervotr Engineering PAGE NU. COMPANYt FIELD PERMEABILITY VS SOHIO ALASKA PETROLEUM CO, PRUDHOE BAY FIELD POROSITY WELL COUNTY. t 'NIAKUK' 4 STATEt UMIAT MERIDIAN, ALASKA AIR PERHEABILITY t MD - HORIZONTAL POROSITY ! PERCENT ( UNCORRECTED FOR SLIPPAGE ) ( HELIUM ) DEPTH INTERVAL RANGE $ PERMEABILITY POROSITY SYMBOL MINIMUM MAXIMUM MIN, MAX. POROSITY AVERAGE PERMEABILITY AVERAGES ARITHMETIC HARMONIC GEOMETRIC 9600,0 - 9947,0 1 (X) 0,001 1961,9 3,1 26,6 19,0 265, 0,13 56. EQUATION OF REDUCED LINE RELATING PERMEABILITY(K) TO F'OROSITY t LOG(K) = (SLOF'E)(POROSITY) + LOG OF INTERCEF'T K = ANTILOG( (SLOPE) (POROSITY) 4. LOG OF INTERCEPT) RANGE EQUATION OF THE LINE I PERM = ANTILOG(( 0,2162)(F'OROSITY) + -2.3606) Them mrmlymem, optnionl (w inlerpfetmtlonm are tm#d on obmervmtionm mhd m~mte~lmlm mFPlbd by tim ~ to wl~,mnd fix wl~ exclu~d~m and confldentiml t~, thb repmt im mrmde. The inmerp~etmtlon.~ or opnion~ expfei#d fepretenl the b~et judgment of Co~ Labo~llor#l, Inc. (mU ~rmm and omlldom OXOqFI:HI); ~ ~ I,,bomtodw, Inc, and Itl offimfm mhd employNm, miewne no ~egpomibility and IrmlLe no ~Hmnty o, !'-.. V! -'.. U,J ~ 40 ~: .~ , :~ 10 10 0 0 0 2 4 6 8 10 12 14 16 18 20 ~ 24 26 28 ~ 32 ~ 36 ~ ~ 42 ~ ~ROSI~: ~RCE~ 70 . 70 ~ 10 10 " 0 0 ' ' .~ .~ .~ .~ .~ .16 .~ .~ 1.25 2.5 5 10 ~ ~ ~ 1~ ~ ~ 12~ ~51~1~ I I I I ii i i I ,~. ~ ~.~mc ~ ~o~s~ ........... ~MU~T~E ~E~ ~T ~~, ~ ~T~~L~T ..... i i i i ~t97'7 · ~ L.A~OFIAT~. ~ , ALL RI~,4T$ COMPANYt FIELD CORE LABORATORIES, INC. Petroleum Reservoir Engineering DALI. Al, TIXAI PAGE STATISTICAL DATA FOR SOHIO ALASKA PETROLEUM CO, PRUDHOE BAY FIELD POROSITY AND PERMEABILITY HISTOGRAM WELL t "NIAKUK' 4 'COUNTY, STATE! UMIAT MERIDIAN, ALASKA AIR PERMEABILITY ! MD, POROSITY ! PERCENT (PERMEABILITY DEPTH LIMITS FEET ANALYZED IN ZONE HORIZONTAL ) RANGE USED HELIUM ) RANGE USED UNCORRECTED FOR 9600.0 - 9947,0 201,0 0.000 TO 1962, 0.0 TO 46.0 SLIPPAGE) INTERVAL LENGTH t 347.0 LITHOLOGY EXCLUIIED ! NONE POROSITY AVERAGE DATA SUMMARY PERMEABILITY AUERAGES ARITHMETIC HARMONIC GEOMETRIC 19,0 265. 0.13 56. T~e .n~lyee.. opinion, (w Inler~e~llonl ere bend on obmrvmt~nm Ind mlte~l-li lU~ by ~ i ~ wi. m~ fm w~M ex.ye and confld~tMI u~e. tH reft b mide. ~ inle~pret.t~ns or opin~ns exini~aed lep/elen! the tnt! iudarnent of Cot, IJbomloH~. Inc. (aU erro~l and omlMom exoelNd); INa CMe Iabomtmka. lac. Iml lb offl(m~ and emplovN1. Imume no ~aDondbiUtv and make no wi. mmv COMPANY! FIELD I CORE LABORATORIES, INC. Petroleum Retervoir Engineering STATISTICAL DATA FOR POROSITY AND PERMEABILITY HISTOGRAM SOHIO ALASKA PETROLEUM CO, PRUDHOE BAY FIELD F'~E 2 WELL ! 'NIAKUK' 4 .COUNTY, STATE: UMIAT HERIDIAN, ALASKA GROUPING BY POROSITY RANGES POROSITY FEET IN AVERAGE AVERAGE PERM, FREQUENCY CUMULATIVE RANGE RANGE POROSITY (GEOM,) (ARITH) (PERCENT) FREQUENCY (%) 2)0 - 4,0 3,0 3,6 0,052 0,113 1,5 1.5 4,0 - 6.0 9,0 4.? 0,053 1,5 4,5 6,0 6,0 - B,O 5~0 7)0 O,12B 0,620 2,5 9.5 BoO - 10.0 4.0 9.0 0,070 0,183 2.0 10,4 10,0 - 12.0 5,0 11,2 0,693 7,1 2,5 12,9 12,0 - 14,0 3,0 13.2 3,3 3,4 1,5 14,4 14,0 - 16,0 9,0 15,2 14, 44, 4,5 18,9 16,0 - 1B,O 21,0 17,2 39° 167. 10.4 29.4 18,0 - 20)0 29,0 19,1 132, 276, 14,4 43,B 20,0 - 22,0 47,0 21,2 148, 225, 23,4 67,2 22.0 - 24)0 43,0 22,8 335, 441, 21,4 88.6 24,0 - 26,0 20,0 24,5 3B1. 438. 10,0 98,5 26,0 - 2B,O 3,0 26,2I 877, 979, 1,5 100,0 I TOTAL NUMBER OF FEET = 201,0 Them iflaJ~tet, opinions of lnterpretuliofli ire blood on oblefvMioril and mlteflall luppJJod by tho client to whom, tnd fix whoN exdudv, and confidential u~. this repMt it nude. The Jmerpretoflons or opinions expfent'd repre#nt the best Judlmem of' Core Laboratories. Inc. (aU errors and ombdom oxaepMd); but Coe, bboratorbs, lee. iud its omcers .nd empJoyee.. ,amine no req)oMJbllfly and make no wM~anty or CDMPANYt FIELD CORE LABORATORIES, INC. Petroleum Reservoir £nllneerini DA I.I. AI, TEXAI PAGE STATISTICAL DATA FOR POROSITY AND PERMEABILITY HISTOGRAM BOHIO ALABKA PETROLEUM CO, WELL : 'NIAKUK' 4 PRUDHOE BAY FIELD 'COUNTY, STATE~ UMIAT MERIDIAN, ALASKA GROUPING BY F'ERMEABILITY RANGES PERMEABILITY FEET IN AVERAGE PERM. AVERAGE FREQUENCY CUMULATIVE RANGE RANGE (GEOM.) (ARITH) POROSITY (PERCENT) FREQUENCY (~) 0,005 - 0.010 0,010 - 0,020 0,020 - 0,039 0,039 - 0,078 0,078 - 0,156 0.156 - 0,312 0.312 - 0.625 0.625 - 1,250 1.250 - 2.500 2.500 - 5,000 5.000 - 10, 10.- 20. 20.- 40. 40,- 80. 80.- 160. 160.- 320. 320.- 640. 640°- 1280. '1280.- 2560. 4.0 0,006 0,006 5.5 2,0 2,0 1o0 0,019 0,019 4,8 0,5 2.5 3,0 O,02B 0,028 5,2 1,5 4,0 5.0 0.053 0.054 6.8 2.5 6.5 4.0 0.133 0.135 7,7 2,0 8,5 3.0 0.226 0.226 6.5 1,5 10,0 3,0 0,404 0,410 10,5 1,5 11,4 2.0 0,975 0.984 14,9 1,0 12,4 1,0 1,4 1,4 15,1 0,5 12,9 8.0 3.5' 3.6 14,5 4)0 16,9 4,0 7.9 8,1 17,3 2,0 lB,9 9.0 14. 14, 17,2 4,5 23.4 8.0 331, 33, 17,4 4.0 27,4 24,0 57, 58. 20,1 11.9 39,3 22,.0 118, 121, 20,1 10,9 50,2 31,0 246. 252. 22,1 15,4 65.7 ': 449, 22.2 24,? 90,5 50.0 441. ~. 16.0 799. 813. 21.8 8.0 98.5 3.0 1805, 1809, 24.4 1.5 100,0 TOTAL NUMBER OF FEET = 201,0 Tl~ae mnJly~em, opinlont or Inlerpretailont ~re bared on obmrv~tlont ind r~lmlalm mspplled by the M to wh~, ~d fm whe~ exdudve and confidential u~, thim repmt it made. The imerpretmltons or opininnt COMPANYt FIELD t, Uttt: LABUttA I UHIES, INC. Petroleum Retervolr Engineering DALLAI. ?EXAI STATISTICAL DATA FOR POROSITY AND PERMEABILITY HISTOGRAM SOHIO ALASKA PETROLEUM CO, PRUDHOE DAY FIELD WELL t 'NIAKUK' 4 COUNTY, STATEt UMIAT MERIDIAN, ALASKA POROSITY-FEET OF STORAGE CAPACITY LOST FOR SELECTED POROSITY CUT OFF POROSITY FEET CAPACITY CUT OFF LOST LOST (%) FEET CAPACITY ARITH REMAINING REMAINING (%) MEAN MEDIAN 0.0 0.0 2.0 0.0 0.0 4.0 3,0 0.3 6.0 12.0 1.4 8.0 17.0 2.3 10.0 21.0 3.3 12,0 26,0 4,B 14,0 29,0 5,8 16.0 3B,O 9.4 1B,O 59,0 1B.B 20,0 BB,O 33,3 22,0 135,0 59.4 24,-0 17B,O 26,0 198,0 I -2B,O 201,0 100,0 201,0 100,0 19,0 20,5 201,0 100.0 19.0 20.5 198,0 99.7 19,2 20,6 189,0 78.6 19.9 20.B lB4.0 97.7 20,3 20.9 180.0 96,7 20,5 21.0 175,0 95.2 20,B 21.1 172.0 94.2 20.9 21,1 163,0 ~0,6 21,2 21,3 142.0 31.2 21.9 21.8 113,0 66.7 22,5 22,4 66,0 40.6 23.5 23.5 23,0 14,? 24,B 25,1 3,0 2,1 26,2 27,0 0,0 0,0 TOTAL STORAGE CAPACITY IN POROSITY-FEET = 3B21.8 Thet~ anlly~em, opinion, or Interpretltlon~ m~e blmd on ob#rvitionm and rrulterhli ~Jpplimi by tl~ cZienl to whom, end Em whom exdudve mhd confldentbl urn, thlm reixxt b rrmde. The interl~etalkm~ or opini~nl eXl~eued represent the bert Judl/nent of Core [abmatodet, Inc. (mU erm~m and ombdom exeei~m~r); but Cor~ IJbmlt~, Ira:. iud Itl omce. and employeem, imune ~o rlel~ilily and mike no wi. inly teixe#n~flom, # lo the i~oductMty, Ixoim opetltlom, or profltlblenem of mty oU, Ill m Mhw ~ ~ m mini In eomm~lon w#h wldeh m~ mnn,~ i, ,,..a ,,- ..t~.a ....... COMPANY{ FIELD I CORE LABORATORIES, INC. Petroleum ~e~rvoir F,n~ineerifl~ DAI. LAI, TgXAI STATISTICAL DATA FOR POROSITY AND PERMEABILITY HISTOGRAM 8OHIO ALASKA PETROLEUM CO, PRUDHOE BAY FIELD PAGE WELL t "NIAKUK' 4 -COUNTY. STATE: UMIAT MERIDIAN. ALASKA HILL.IDARCY-FEET OF FLOW CAPACITY LOST FOR SELECTED PERMEABILITY CUT OFF PERMEABILITY' CUT OFF FEET CAPACITY FEET CAPACITY OEOM LOST · LOST (Z) REMAINING REMAINING (~) MEAN MEOIAN 0,005 0,010 0,020 0.039 0.078 0,156 " 0,312 0,625 1,250. 2,500 5,000 10, 20, 40. 160, 320, 640, 1280, 2560, 0,0 0,0 4,0 0.0 D,O 0,0 8,0 0,0 '13,0 0,0 17,0 0,0 20,0 0,0 23,0 0,0 25,0 0,0 26,0 0,0 34,0 0,1 38,0 0,1 47,0 0,4 55,0 0,9 79,0 3,5 101,0 8,5 132,0 23,1 182,0 65.3 198,0 89,8 201,0 100.0 201,0 197.0 196,0 193,0 188.0 184o0 181,0 178.0 176,0 175,0 167,0 163.0 154,0 146,0 122,0 100.0 69,0 19,0 3,0 0,0 100,0 56.31 157,50 100.0 68,32 165,46 100.0 71,23 167,32 I00,0 80,46 173,02 100.0 97,76 182,97 100,0 112,85 191,34 100,0 125,09 197,87 100.0 137,78 204,61 100,0 145,76 209,24 100,0 149,66 211,59 99,9 179,09 231,39 99,9 193,31 241,97 99,6 225,50 267,59 99,1 250,58 292,62 96,5 335,49 3~7,53 91,5 422,11 416,43 76,9 538,10 516,25 34,7 908,87 965,87 10.2 1804,89 1810,19 0,0 TOTAL FLOW CAPACITY IN MILLIDARCY-FEET(ARITHMETIC) = 53192,72 Them .nalyws. opinlonl m Inleq~etltloal ~re beMd on obm~v~tlon, ind ma,dal~ mpplled by the client to whom. m~d fm whom excludve ind C°nfldentl~l use. this ~epMt le n~de. The Imeq~etattons or opinions expressed ~epre#flt the twit Judlment of' Corn L~boutoriet, Inc. (tU errorl ami ombdom ~; but Colt I~bomtMbm. Inc. mul itt oftlcers ,nd employees, imunm no romoM~ilitv and n-tike no w~,antv m Well History Well Niakuk #4 Installed 82' 157 # Grade B conductor pipe from 120' to surface; cemented with 460 cu. ft. Permafrost B cement. Installed and tested 30" diverter system. Spudded well at 0001 hrs, j..a.._n_.u_.a__r_y- .... .1_.~,~._1_~985. Vertically drilled 26" hole to 1717'. Ran 43 jts 20" 133# K-55 casing to 1717'. 20" casing parted while preparing to cement. Fished and recovered cement basket and 20" casing. Ran 41 jts 20" 133# K-55 casing to 1703'. Cemented casing with 4420 cu. ft. Permafrost B. Performed 235 cu. ft. Permafrost B top job. Installed and tested BOPE to 2000 psi. Tested casing to 1500 psi. Cleaned out float equipment and drilled 58' of new hole. Performed leak-off test to 0.691 psi/ft, gradient. Drilled 17 1/2" hole to 5048'. Ran open hole logs. Ran 125 jts. 13 3/8" casing with shoe at 5028'. Cemented in two stages; first stage with 2530 cu. ft. · class 'G' cement· second stage through DV collar at 1657' with 330 cu. ft. Permafrost cement preceded by Arctic Pack. ND BOPE. Tested packof f. Installed and tested BOPE to 5000 psi · Cleaned out D. V.; tested casing to 3000 psi. Cleaned out to float collar; tested casing to 3000 psi. Cleaned out shoe and drilled 30' of new hole. Performed leak-off test to 0.7 psi/ft, gradient. Drilled 12 1/4" hole to 9217'. ~ from 9217' to 9227'. Opened 8 1/2" hole to 12 1/4" hole from 9217' to 9227'. Drilled 12 1/4" hole to 9600'. Cut ~ from 9600' to 9660'. Tested BOPE. ~ from 9660' to 9708' 9708' to 9768' 9768' to 9828' 9828 to 9840' 9840' to 9900', and 9900' to 9960'. Drilled 8 1/2" hole to 10,300'. Ran open hole logs. Opened 8 1/2" hole to 12 1/4" hole from 9960' to 10,300'. Ran 265 jts 9 5/8" 47# L-80 Buttress casing to 10,296'. Cemented 9 5/8" casing in two stages: First stage with 1584 cu. ft. Class 'G' cement; second stage through DV packer at 1591' with 130 cu. ft. Permafrost cement preceded by Arctic Pack. Nippled up wellhead. Tested BOPE to 5000 psig. Drilled out DV packer; tested 9 5/8" casing to 3000 psig. Cleaned out to float collar at 10·254'. Increased ~ , , . A~as~a Oi~ & Gas Cons, Cornmiss~o~ weight to 11.4 ppg. Displaced top 2200' of casing to diesel. Installed adaptor flange and 6" 5M valve. Released rig at 0600 hours, 2-17-85. Ran VSP and Gyro after rig release. IBG:elw5885/0254w i Attachment #1 Well Niakuk #4 22. Type Electric or Other Logs Run DIL/LSS GR DIL/BHC/GR LDT/CNL/NGT LSS/GR Dipmeter RFT/GR VSP 1703' - 5048' Surface - 5048' 10280' - 5023' 10280' - 5023' 10280' - 5023' 10280' - 5023' 20 pressure readings and 2 fluid samples IBG:elw51085/0254w log type ,. MUD *received *rccicvcd date .. run # comments BHC/SL ~ no ~1 ".. ~..~a,, ~ L-' - BHCIAC yes no Accoustic log , ,, , , CNL~ ~ ~ ~ ~ FDC yes no SHDT yes CYBER yes LOOK FMS yes no , ML yes no Cement bond CBT ~ n° k~ 0 ~. CNL ycs no Case hole neutron CE~ yes no Cement evaluation R~ Natural Gamma Ray NGT ~~ no ~ ~~ ~ ~ GCT ~ no 5'HP tt ,, ,, , data is required other *received *rCcicved date note comments -' data / " Directional S u rve.¥" Digital no / Tape Is~ DST - yes ~ ' ~ '~ON~ Dali S~em tests and chaas CORED INTERVALS RECOVERED COMMENTS Comments * if data is required Suggested form to be ins~=t'edin each "Active" well folder to check for timely compliance with our regulations. OP~.RATOR~ ~rELL ~qAME-'AND Reports and Materials to be received by: ~-' D/at~e--~f' Required Date Received Remarks Completion Report Well History ~'~mple ,.~ ~.C°re Description~ ~/~ Registered, Survey Plat ~~ /~ ~~ ~~ ~/~ . -,, , ,~h Directional Survey Drill Stem Test Reports Production Test Reports . . , ~:..~:~ ~.~ '.'. '~ ,' ' - '~~:~ ~ ~ ~' ~ ,' Log Run , , ,' ' , , ~ ~ , ,, , . _ SOHIO ALASKA PETROLEUM COMPANY 3111 "C" STREET, ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 MAIL: POUCH 6-612 ANCHORAGE, ALASKA 99502-0612 March 5, 1985 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Attention: Mr. C. V. Chatterton Gentlemen: Well Niakuk 94 Enclosed in duplicate, is Form 10-404, Monthly Report of Drilling and Workover Operations, for the above named well for the month of February, 1985. RHR/I BG/hh/0219H Enclosure cc: Well File 917 Very truly yours, R. H. Reiley District Drilling Engineer RECEIVED Anchorage STATE OF ALASKA ALASKA(' ,_ AND GAS CONSERVATION C4 ,MISSION NTHLY REPORT OF DRILLING AND WORKOVER OPERATIONS 3rilling well 2. Name of operator Sohio Alaska Petroleum Company 3. Address P.O. Box 6-612, Anchorage, Alaska 99502-612 4. Location of Well at surface 3524' NSL, 144' WEL, Sec 25, T12N, R15E, MPM Workover operation [] Elevation in feet (indicate KB, DF, etc.) GL to K.B. = 37.9' Depth at month end: Footage drilled: 6. Lease Designation and Serial No. ADL 34630 For the Month of February ,19__ .12. Depth at end of month, footage drilled, fishing jobs, directional drilling problems, spud date, remarks 10,300' 773" + 300" cores 13. Casing or liner run and quantities of cement, results of pressure tests See Attached Well History 14. Coring resume and brief description Core ~2 9600' to 9660': Core ~3 9660' to 9708" Core 94 9708' to 9768" Core 95 9768' to 9828'? Core 96 9828' to 9840" Core ~7 9840' to 9900" Core ~8 9R00'~' to 996'0" 15. Logs run and depth where run DIL - BHC - GR 10,280 to 5'023 '~' LDT - CNL - NGT '" to '"' LSS- GR -. "" to '":' Dipmeter - '" to '" RFT - GR -. 20. presSure readings and 2. fluid samples" 7. Permit No. 84-200 8. APl Number 50-029-21217 9. Unit or Lease Name ADL 34630 10. Well No. Niakuk #4 11. Field and Pool Wildcat (Exploration) 85 SOHIO RESTRICTED RECEIVED Alaska 0Il & Gas =~,0,,r[~. f' ,~; "",~,, , ...... 1 6. DST data, perforating data, shows of H2S, miscellaneous data re h regar of stat f operations, and must be filed i dupliCate'with 'the AlaSka Oil and Gas Conservation Commission by the 15th of the succeeding month, unless otherwise directed. Form 10-404 Rev. 7-1-80 Submit in duplicate February, 1985 Well History Niakuk #4 Opened 8-1/2" hole to 12-1/4" hole from 9217' to 9227'. Drilled 12-1/4" hole to 9600'. Cut core #2 from 9600' to 9660'. Tested BOPE. Cored from 9660' to 9708', 9708' to 9768', 9768' to 9828', 9828' to 9840'', 9840' to 9900', and 9900' to 9960'. Drilled 8-1/2" hole to 10,300'. Ran open hole logs. Opened 8-1/2" hole to 12-1/4" hole from 9960' to 10,300'. Ran 265 jts 9-5/8" 47~ L-80 Buttress casing to 10,296'. Cemented 9-5/8" casing in two stages: First stage with 1584 cu. ft. Class "G" cement; second stage through DV packer at 1591' with 130 cu. ft. Permafrost cement preceded by Arctic Pack. Nippled up wellhead. Tested BOPE to 5000 psig. Drilled out DV packer; tested 9-5/8" casing to 3000 psig. Cleaned out to float collar at 10,254'. Increased mud weight to 11.4 ppg. Displaced top 2200' of casing to diesel. Installed adaptor flange and 6" 5M valve. Released rig at 0600 hours, 2-17-85. VSP and Gyro will be run in conjunction with Niakuk ~5 TD logs. RECEIVED Alaska Oil & ~as Cons, Anchorage POUCH 6-6t2 ANCHORAGE, ALASKA 99502-0612 ANCHORAGE OFFICE:'3111 "C" STREET ,· AN( :HORAGE, ALASKA 99502-0612 · (907)561-5111 TO' State of. Alaska ORIGINATOR: J~lie Ao ~ -Division of Oil ~ Gas 3001 porCUPine Drive ~ge, Alaska 99501 DATE SENT: F~ 19, 1985 ATTENTION: The following material is beingt!ansmitted herewith. Please acknowledge receipt by signing below and return- ing a copy of this letter: CHIPS (2 ~C~S) 9217~ - 9227 9600& - 9960 349 ~ ~ Rece,ved by:.,~. ~f ,~..~½:~. ' /~__ AK2233-2 (6/84) Date received: SOHIO ALASKA PETROLEUM COMPANY 3111 "C" STREET, ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 MAIL: POUCH 6-612 ANCHORAGE, ALASKA 99502-0612 February , 1985 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Attn: Mr. C. V. Chatterton Gentlemen: SOHIO RESTR~C ~ED WELL NIAKUK $4 Enclosed in triplicate is Form 10-403, Sundry Notices and Reports on Wells, for the above-named well. This gives notice of intention to suspend Niakuk $4. Very truly yours, District Drilling Engineer IBG:ckg 21485/0044G(6) Enclosure cc: Well File 17 RECEIVED FE 8 1 4 1985 Alaska Oil & Gas Cons. Commission Anchorage .: STATE OF ALASKA ALASKA C{ AND GAS CONSERVATION C(~~'' 'MISSION SUNDRY rICES AND REPORTS JN WELLS DRILLING WELL [] COMPLETED WELL f-I OTHER~]~ 2. Name of Operator Sohio Alaska Petroleum Company 3. Addres~ P. O. Box 6-612, Anchorage, AK. 99502 4. Location of Well 3524' NSL, 144' ~55L, Sec 25, T12N, R15E UPM 5. Elevation in feet (indicate KB, DF, etc.) KBE = 50' AMSL 12. I 6. Lease Designation and Serial No. ADL 34630 7. Permit No. 84-200 8. APl Number 50-029-21217 9. Unit or Lease Name ADL 34630 10. Well Number Niakuk ~4 11. Field and Pool Wildcat (Exploration) Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data NOTICE OF INTENTION TO: SUBSEQUENT REPORT OF: (Submit in Triplicate) (Submit in Duplicate) Perforate [] Alter Casing [] , Perforations [] Altering Casing I-1 Stimulate [] Abandon ' [] Stimulation [] Abandonment f"l Repair Well [] Change Plans I'-1 Repairs Made [] Other D Pull Tubing [] Other ~ Pulling Tubing [] (Note: Report multiple completions on Form 10-407 with a submitted Form 10-407 for each completion.) 13. Describe Proposed or Completed Operations (Clearly state all pertinent details and give pertinent dates, including estimated date of starting proposed work, for Abandonment see 20 AAC 25.105-170). Suspend Niakuk #4 to allow deepening in the future., This will be accomplished by running and cementing 9_-5/8"' 47" L-80 casing to 10,300' as prQgran~ned. The 9-5/8"' casing will be filled wi't]5~ fluid to 'provide a 2100 psi over- balance based on RFT data. Mud of the correct density will be Placed f~cm TD to 2200', with diesel placed from surface to 220.0" for freeze. 5ack 'Protection.~ The well will be sealed with a master valve on the tubing spooll Logging operations' (CBL/VDL/GR/CCL -VSP -,.. GYRO)~, will be run.. after the ri9 ~as been. moved off the well. At the completion of logging operationS a .balance cen~nt plug 10..Q.', in length will be placed from 2400" to 2500."' 'using a coiled' tuSing unit,~ The well will be sealed with a master valve on the tubing ~eadl adapter'~prior Go operations ending due to breakup in 1985. The space b"l~'ow for Commission use ~ SOHIO RESTEJCTED RECEIVED F E B 1 4 1985 Anchorage Conditions of Approval, if any: By Order of Approvedby .... ~¥ ~.~¥ W. ~IEP~ COMMISSIONER ,he Commission .'~pprovec~ Returned Form 10-403 Rev. 7-1 Submit "Intentions" in Triplicate and "Subsequent Reports" in Duplicate SOHIO ALASKA PETROLEUM COMPANY CONFIDENTIAL 3111 "C" STREET ANCHORAGE, ALASKA TELEPHONE (907) 276-5111 MAIL: POUCH 6-612 ANCHORAGE, ALASKA 99502 February 6, 1985 Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Attention: Mr. C. V. Chatterson Gentlemen: NIAKUK 94 WELL Enclosed, in duplicate, is Form 10-404, Monthly Report of Drilling Workover Operations, for 'the above-named well for the month of January 1985. jam/0015z and Very truly yours, Roger C. Herrera Manager Exploration encs cc: Well File Drilling ECEIVED F'E ~3 0 7 1985 ~,l;~ska Oil & 6as Cons. Commission Anchorage", ' ,, ! o, CDNFIDENT!AL STATE OF ALASKA , ALASKA i~. AND GAS CONSERVATION CO ,MISSION ,NTHLY REPORT OF DRILLING AND WORKOVER OPERATIONS Drilling well L-)J[ Workover operation [] 2. Name of operator Sohio Alaska Petroleum Company 3. Address P. ouch 6-612, Anchorage, Alaska 4. Location of Well at surface 3524 ' NSL, 99502-0612 144' WEL, Sec 25, T12N, R15E, UPM 5. Elevation in feet (indicate KB, DF, etc.) Ground level to K.B. 37.9 6. Lease Designation and Serial No. ADL 34630 7. Permit No. 84-200 8. APl Number $0-029-21217 9. Unit or Lease Name ADL 34630 10. Well No. .. Niakuk #4 (42-25-12-15) 11. Field and Pool Wildcat (Exploration) For the Month of January ,19 85 12. Depth at end of month, footage drilled, fishing jobs, directional drilling problems, spud date, remarks Spudded we'll at O00l hours, 01-15-85 Depth at month end: 9227' Footage drilled: 9217' + l0t core. 13. Casing or liner run and quantities of cement, results of pressure tests Installed 82' 157t/Grade B conductor pipe from 120' to surface; cemented with 460 cu. ft. Permafrost B cement. Installed and tested 30" system (witnessed by AOGCC representative Bobby Foster). Vertically drilled 26" to 171'. Ran 43 jts. 20" 133#'K55 casing to 1717'. 20" casing parted while preparing cement. 'Fished and recovered cement basket and 20" casing. Ran 41 jts. 20"' 133# K55 to 1703'. Cemented casing with 4420 cu. ft. Permafrost B. Performed 235 cu. ft. ~t B top job. ~ Installed and tested BPOE to 2000 psi, (See attached sheet for cont. 14. Coring resume and brief description 15. Logs run and depth where run 1703'-5048' ' Surface -5048' ' · ,: 1 6. DST data, perforating data, shows of H2S, miscellaneous data None RECE VE:D ' FEB 0 7 19B5 Alaska Oil & Gas Cons. C0mmissi0, 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Allu~lulc~g6 NOTE--Report on this form is required for each calendar month, regardless o~ the status of operations, and. must be filed in duplicate with the Alaska Oil and Gas Conservation Commission by the 15th of'the succeeding month, unless otherwise directed. Form 10-404 Submit in duplicate Rev. 7-1-80 gontinuation of #13 Tested casing to 1500 psi. Cleaned out float equipment and drilled 58' of new hole. Performed leak-off test to 0.691 psi/ft, gradient. Drilled 17½" hole to 5048' in two stages; first stage with 2530 cu. ft. class "G" Cement, second stage through D.V. collar and tested packoff. Installed and tested BOPE to 5000 psi. Cleaned out D.V.; tested casing to 3000 psif Cleaned out to float collar; tested casing to 3000 psi. Cleaned out shoe and drilled 30' new hole. Performed leak-off test to 0.7 psi/ft, gradient. Drilled 12¼" hole to 9217'. Cored from 9217' to 9227'. RECEIVED 0 7 ]985 Alaska 0/i & Gas Cons,,Cor. missio~, ,., Anchorage .,. MEMORANDUM State of Alaska ALASKA OIL AND GAS CONSERVATION CO~R~IISSION TO: C. ~i ~a~terton Cha ~rmWn~ . THRU: Lonnie C. Smith ,' · ~' Commi s s lone r Edgar W. Sipple, Jr~.¢~/ FROM: Petroleum Inspector~./ DATE: FILE NO: TELEPHONE NO: January 28, 1985 D. EWS. 10 SUBJECT: Witness BOPE Test on Sohio' s Niakuk ~4, Sec. 25, T12N,R15E,UM, Permit No. 84-182, Alaska United Rig 2. Thurs·day,_ Janu.a.ry' 24, 1985: I traveled this date from Anchorage via Alaska Airlines to S°hio's Niakuk ~4, Alaska United Rig 2, to witness a BOPE test. The drilling contractor was in the process of running casing.. Friday, January 25, 1985: The BOPE test commenced at 5:45 pm and There were no failures. I filled out the AOGCC BOPE inspection, report which is attached to this report. In summary, I witnessed the BOPE test on .Sohio's Niakuk ~4, Alaska United Rig 2. At t a chment 02-00IA(Rev. 10/79) O&~ #4 5/84 STATE OF ALASKA ALASKA OIL & GAS CONSERVATION COMMISSION B.O.P.E. Inspection Report Inspector Operator Location: Sec Drillin~ Contractor Location, General Date Well Representative Permit # '~f--/~ Casing Set Representative Well Sign~ ACC~ATOR SYST~ General Housekeeping Oh Rig O~ Reserve Pit Q~_ Mud Systems Visual Audio Trip Tank Pit Gauge Flow Monitor Gas Detectors BOPE Stack An~ '~d ~eventer Pip e Rams Blind' Rams ~ C~o~e--~ia~e Valves H.C.R. Valve d Kill Line Valves Check Valve ~D Test Pressure $ ooo 5'~0 o Full Charge Pressure ~C~DO psig ~m~z~ Pressure After Closure, /& 50 psig / ~g~ Pump incr. clos. pres. 200 psig ~ min ~ sec. Full Charge Pr~ssu~ At~iai!!~d: ~ min 0~ sec. ~ ~1~, I~0~/~o, 1~17~, i~o0 psig Cont o : ast, Remote J~ Blinds switch cover Kelly and Floor Safety Valves Upper Kelly ~ Test Pressure Lower Kelly~'O ~ Test Pressure .5-ooo Ball Type~'-~k, Test Pressure ~-~ Inside BOP~.--'O~ Test Pressure --,~oo Choke Manifold''~ Test Pressure No. Valves V No. flanges ~( Adjustable Chokes Hydrauically operated choke Test Results: Failures '-~ O ------ Test Time / hrs. ~O Repair or Replacement of failed equipment to be made within ~_~days and Inspector/ Commission ofl~e notified. ~~/ ~ ~ Remarks: ~f~ ~ ~ orig. - AO&GCC cc - Operator cc - Supervisor MEMORANDUM THRU: I,onnie C. Smith Commiss loner Statu of Alaska FROM: .,.., ,/// FILE NO: D BHL 6 ,,! [ TELEPHONE NO: Ben LeNorman ~4([}' k._.,/' SUBJECT: Witness BOPE Tests on Petroleum Inspector ~' Sohio's Niakuk ~4, Sec. 25, T12N,R15E,UM, Wildcat. Tuesday, January 15, 1985: I departed my home at 3:25 pm for a 3:55-'p~ Show~" and 4':55 ~m departure via Alaska Airlines, Fit. ¢-59 for Deadhorse, arriving at 7:30 pm. Weather: -30°F, blowing snow. Wednesday, January ...!6, 1985: Standing by on ARCO' s L1-9. Thursday, January .17, 1985: BOPE tests on ARCO's L1-9 were ~'°mplated, the' s~bo'e, ct o~-f-a separate report· BOPE tests on .ARCO's Kuparuk 2C-13 were completed, the subject of a separate report. BOPE tests on ARCO's Kuparuk lQ-9 were completed, the subject of a separate report. Friday, January 1_~8~ 1985: BOPE tests on ARCO's Kuparuk 2W-15 were '~Ompleted"~ tH~SU~"~-~f separate report. Saturday_L. Janua_~ 19, 1985: Standing by on Sohio's Niakuk #4. Sunday, January 20, 1985: Inspected surface location of H.G. & ~.~s-~ab"~n'd°ne8 #1' Sam"RiVer, the subject of a separate report· Monday,__~,_January~.~ 21, 1985.~ .. BOPE tests, on Sohio's Niakuk #4 began at ~-:~'mzdnight' and were-completed at 2:15 am. BOPE inspection' report is attached· I departed Deadhorse via Alaska Airlines, Flt. ¢54 at 10:00 am, arriving in Anchorage at i1:4.0 am and at my home at 12:10 pm. In summary, I witnessed successful BOPE tests on Sohio's Niakuk #4. Attachment 0~-001A(Rev. 10/79) ~/84 STATE OF ALASKA ALASKA OIL & GAS CONSERVATION COMMISSION B.O.P.E. Inspection Report Inspect.or Operator Location: Sec ~. T./,~JR/J~' M ~/~g,f Drillin~ Contractor/~,G~c~,~ _/~,~Rig f/~ Representative ./~ ~,. ,~"'~,,~_,4..~,~Z~'.Z. Permit ft 2 ~ -- / ~_--Q ~o"Casing Set @ /Z.~ ft. Representative c//$-~/C ~/~~~~ Location, General ~/~ Well Sign_~_~ ACCUMULATOR SYSTEM General Housekeeping~ Rig Reserve Pit Mud Systems Visual Audio Trip Tank Pit Gauge Flow Monitor Gas Detectors BOPE Stack Annular Preventer Pipe Rams Blind Rams Choke Line Valves H.C.R. Valve Kill Line Valves Full Charge Pressure Pressure After Closure Pump incr. clos. pres. 200 psiR Full Charge Pressure Attained: psig psig psig rain ~ ~,sec. rain ~. sec. Controls: Master 4~ Remote _~/~ Blinds switch cover Kellx and Floor Safety Valves Test Pressure Upper Kelly Test Pressure . ~'~:~ Lower Kelly Test Pressure ~.~.~.~"~ .<~:C::~.~;~ Ball Type Test Pressure ~...¢~,~¢~ ~~ Inside BOP Test Pressure ~, ~ ~ Choke Manifold Test Pressure ~ O~ No. Valves No. flanges Check Valve ~f~.~ ~? ~.,~f~:~:~ Adjustable Chokes '~ Hydrauically operated choke f Test Results: Failures '~9 Test Time ~C,~hrs. Repair or Replacement of failed equipment to be made within days and Inspector/ Co~ission office notified. , ~ ...... , ~ ....~ , ~ ,~,~ ~2~' ..~.'~ ~ ,/~r./~..~'.'.~~ , ...... . ,~..~...~,~,.~,~ ~,~. ~ Remarks: ~~,:~ . <:,k "~ ~A"',~..~/ "~ .,'" /~ ' ~' ~"~"~"~:~/~:: " ........... :' ......... Distribution orig. - A0&GCC cc - Operator cc - Supervisor Inspector. MEMORANDUM Sta e of Alaska ALASE~ OIL A~ GAS CONSERVATION C0}'~ISSION January 18, 1985 D.BDF. 1 vf t TO: C. er_ton DATE: Cha~X----~ FILE NO: ¥.., ',x~/ THRU: Lonnie C. Smith ' TELEPHONE NO: Commissioner FROM: Bobby Fos tgr'\?~)~' SUBOECT: Petroleum In~'~ector Inspect Diverter System on SOHIO's Niakuk # 4, Sec. 25, T12N,R15E,UM, Permit No. 84-200. Sunday, January 1.3, 1.985: The diverter system met or exceeded all APi 'and AOGCC AAC 25.035 regulations. The 30" annular preventer would not operate properly due to having ice in it. The ice was melted using steam and circulating mud in the well. After the preventer warmed up it operated properly. 02-00IA(Rev. 10/79) SOHIO ALASKA PETROLEUM COMPANY 3111 "C" STREET, ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 MAIL: POUCH 6-612 ANCHORAGE, ALASKA 99502-0612 January 14, 1985 Alaska Oil & Gas Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Attn: Mr. C. V. Chatterton Gentlemen: Well Niakuk $4 (42-25-12-15) Permit Number 84-200 Enclosed in triplicate is Form 10-403, Sundry Notices and Reports on wells for the above well. Following a telephone conversation between Mr. A. C. Clark and Mr. H. Hedland on Friday llth January 1985 the 26" surface hole logging program will be withdrawn from the drilling program and to conform with AOGCC requirements the 17 1/2" hole Gamma Ray log will be run from TD to surface. If you have any questions about the change in program, please contact Mr. A. C. Clark on 564-5141. Very truly yours, District Drilling Engineer RHR:ACC:ckg 11185/0173G Enclosure cc: Well File $17 Exploration SUNDRY NOTICES AND REPORTS ON WELLS 1. DRILLING WELL [] COMPLETED WELL [] OTHER 2. Name of Operator 7. Permit No. Sohio Alaska Petroleum Company 84-200 3. Address 8. APl Number P.O. Box 6-612, Anchorage, Alaska 99502 50-029-21217 4. Location of Well Surface 3524' NSL, 144' WEL, Sec. 25, T12N, R15E, UPM 5. Elevation in feet (indicate KB, DF, etc.) Est. KBE = 507 A_MSL 6, Lease Designation and Serial No. ADL 34630 9. Unit or Lease Name ADL 34630 10. Well Number N±akuk ¥/4 (42-25-12-15) 1 1. Field and Pool Wildcat (Explorat ion) 12. Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data NOTICE OF INTENTION TO: SUBSEQUENT REPORT OF: {Submit in Triplicate) (Submit in Duplicate) Perforate [] Alter Casing [] , Perforations [] Altering Casing [] Stimulate [] Abandon [] Stimulation [] Abandonment [] Repair Well [] Change Plans [~ Repairs Made [] Other I'"l Pull Tubing [] Other [] Pulling Tubing [] (Note: Report multiple completions on Form 10-407 with a submitted Form 10-407 for each completion.) 13. Describe Proposed or Completed Operations (Clearly state all pertinent details and give pertinent dates, including estimated date of starting proposed work, for Abandonment see 20 AAC 25.105-170). The following logging program change is proposed: 1. Elimination of 26" hole open logs. 2o Run gamma ray from 17 1/2" hole T.D. to surface. Niakuk ~4 is anticipated to be spudded January 15, 1985. RECEIVED 14. I hereby certify that the ~gr, eg~ing is true/~d correct to the best of my knowledge, Signed ;'~.._~ .-~,.~.,.~ ~-,5 '~---~ Title Distr±¢t Drill±n§ Engineer The space below for Commission use Conditions of Approval, if any: Approved by ~pproved Copy Returned By Order of COMMISSIONER the Commission Form 10-403 Rev. 7-1-80 Submit "Intentions" in Triplicate and "Subsequent Reports" in Duplicate SOHIO ALASKA PETROLEUM COMPANY TO: State of Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 3111 "C" STREET ANCHORAGE, ALASKA TELEPHONE (907) 265-0OO0 MAIL: POUCH 6-612 ANCHORAGE, ALASKA 99502 February 7, 1985 Regarding: REFERENCE: NIAKUK #4 WELL The following material is being submitted herewith. Please acknowledge receipt by signing a copy of this letter and returning it to this office:- Enclosed are three boxes of Dry Cuttings from the above referenced well. Box 1: 120-1140" Box 2: 1140-2880' Box 3: 2880-4650' If you have any questions, please contact me at 564-5516. p ie A. McMaster loration RECEIVED DATE ~ 19 December 4, 1984 Mr. R. H. Reiley District Drilling Engineer Sohio Alaska Petroleum Company Pouch 6-612 Anchorage, Alaska 99502-0612 Re: Niakuk #4 Sohio Alaska Petroleum Company Permit Mo. 84-200 Sur. Loc.' 3524' NSL, 144' WEL, Sec. 25, T12N, R15E, UPM. Btmhole Loc. S A 1~ E Dear Mr. Reiley: Enclosed is the approved application for permit to drill the above referenced well. If coring is conducted, a one cubic inch chip from each foot of recovered core is required. Samples of well cuttings (a minimum of four tablespoonfuls) and a mud log are required. An inclination survey is required as per 20 AAC 25. 050(a) (2). If .available, a tape containing the digitized log information shall be submitted on all logs for copying except experimental logs, velocity surveys and dipmeter surveys. Many rivers in Alaska and their drainage systems have been classified as important .for the spawning or migration of 'anadromous fish. Operations in the~e areas are subject to AS 16.05.870 and the regulations promulgated thereunder (Title 5, Alaska Administrative Code). Prior to conm~encing operations you may be contacted by the Habitat Coordinator's Office, Department of Fish and Game. Pollution of any waters of the State is prohibited by AS 46, Chapter 3, Article 7 and the regulations promulgated thereunder (Title 18, Alaska Administrative Code, Chapter 70) and by the Federal Water Pollution Control Act, as amended. Prior to commencing operations you may be contacted by a representative of the Department of Environmental Conservation. 1,~r. R. H. Reiley Niakuk # 4 -2- December 4, 1984 To aid us in scheduling field work, please notify this office 24 hours prior to commencing installation of the blowout prevention equipment so that a representative of the Co~ission may be present to witness testing of the equipment before the surface casing shoe is drilled. }~ere a diverter system is required, please also notify this office 24 hours prior to commencing equipment installation so that the Commission may witness testing before drilling below the shoe of the conductor pipe. In the event of suspension or abandonment, please give this office adequate advance notification so that we may hmve m witness present. Very truly yours, : .... : ...... Harry W'~Kugler."- Commissioner of Alaska Oil and Gas Conservation Commission BY ORDER OF THE COmmISSION lc Enclosure cc: Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. Doug L. Lowery SOHIO ALASKA PETROLEUM COMPANY Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 TELEPHONE (907) 276-5 :bl., !. '-- · · 612}~!__, 4 ,'-'.r.,,..;~ ..... .:'-~ MAIL' POUCH 6 Nove~r 2, 1984 ..~ ,}}~~ Attn: Mr. C. V. Chatterton Gentlemen: WELL NIAKUK ~4 After conversation with Mr. Harold Hedlund we understand that we will be required to provide hydrogen Sulfide detection equipment on the rig for this well. Sohio will provide this detection equipment in conjunction with the mud logging unit to be used on the well. H2S detectors will be placed 'in the vicinity of the shale shakers, on the rig floor, in the sub-base and in the mud pit complex. Audible and visual alarms will be positioned on the rig and in the camp and airpacks will be available in the doghouse for the rig crew.. Supervisors and rig crews will be given appropriate training on the dangers of hydrogen sulfide and in the use of air packs. Portable hydrogen sulfide detectors will be available on location. Hydrogen sulfide scavengers for the mud system will be available from mud company stock points in Prudhoe Bay. Additional hydrogen sulfide contingency equipment will be available from Sohio's Sag Delta ~11 delineation well. Tf V~ll hRT7" 'mu, 4:,~,"' ' ' SOHIO ALASKA PETROLEUM COMPANY 3111 "C" STREET, ANCHORAGE, ALASKA TELEPHONE (907) 561-5111 MAIL: POUCH 6-612 ANCHORAGE, ALASKA 99502-0612 October 29, 19 84 Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Attn: Mr. C. V. Chatterton Gentlemen: ~WELL 'NiakUk '# 4 Enclosed are the following documents, in triplicate, along with our check for $i'00 to cover' the Permit filing fee. 1. Application for Permit to Drill; 2. Proposed drilling program .outline; 3. Proposed Blowout Prevention Diagram & Diverter System Detail; 4. Surveyor' s plat showing well location; If you have any questions, pleaSe call Dick Maskell at 564-5551. Yours very truly, District Drilling Engineer mcan encs cc: Well File %17 Exploration RECEIVED Oil l& C:~s 'Cons. Commissior~ STATE OF ALASKA ALASKA~". AND GAS CONSERVATION C~' ~MISSlON PERMIT TO DRILL 20 AAC 25.005 la. Type of work. DRILL REDRILL DEEPEN lb. Type of well 2. Name of operator Sohio Alaska Petroleum Company 3. Address P. O. BOX 6-612, Anchorage, Alaska 99502 EXPLORATORY [~ SERVICE [] STRATIGRAPHIC [] DEVELOPMENT OIL [] SINGLE ZONE [] DEVELOPMENT GAS [] MULTIPLE ZONE [] 4. Location of well at surface 3524' NSL, 144' WEL, Sec. 25, T12N, R15E, UPM At top of proposed producing interval At total depth VERTICAL WELL 5. Elevation in feet (indicate KB, DF etc.) Est. KBE = 50' AMSL 6. Lease designation and serial no. ADL 34630 9. Unit or lease name ADL 34630 10. Well number Niakuk #4 (42-25-12-15 11. Field and pool Wildcat (Exploration) 12. Bond information (see 20 AAC 25.025) Type Blanket Surety and/or number Safeco Ins. 2975387 Amount $200,000.00 13. Distance and direction from nearest town 14. Distance to nearest property or lease line NE of Deadhorse - 13 miles West of ADL 34635 - 144' feet 16. Proposed depth (MD & TVD) 17. Number of acres in lease 12950' MD BKB feet 2560 19. If deviated (see 20 AAC 25.050) 120. Anticipated pressures KICK OFF POINT N/A feet. MAXIMUM HOLE ANGLE N/A° I (see 20 AAC 25'035 (C) (2) 21 SIZE Hole 36 26 17% 13 3/8 12¼ Casing Weight 30 157.5 20 133 72 9 5/8 47 7 29 22. Describe proposed program: Proposed Casing, Liner and Cementing Program CASING AND LINER Grade CouplingI Length B Welde~ 80 K-55 Butt.| 5000 Butt.~ 1500 L-80 L-80 Butt.|~10300 ,-80 I Butt. 15. Distance to nearest drilling or completed we. Nlakuk ~2 - 65]_9 feet 18. Approximate spud date Janua~ 15, 1985 49~0 psig@ . Surface 670~ psig@ ]_~9~Oft. ~;~(TVD) SETTING DEPTH QUANTITY OF CEMENT M D TOP TV D Surface Surface Surface. I Surface i 10000~ ~ 10000 M D BOTTOM TV D 110! 110 15001 1500 50001 5000 I 10 300 II I 10300 129501 12950 t (include stage data) 8 cu.yds, concrete 2500 cu. ft.Permafrost 1700 cu.ft.Class G; 400 cu.ft.PermafroSt 1000 cu.ft.Class G; 95 cu.ft.Permafrost 400 cu.ft. Class G See attached Proposed Drilling and Completion Program. EC£1v£D · ~.~ ~h~,;.;~. b# ~g~.::~s Cons. CommiSsion 'Chorage 23. I hereby certify that the foregoing is ~rue and correct ~o the bes~ of my knowledge SIGNED ~/~ TITLE ~' .,:,~% P ~ ?'~:": ~:"'"" ;' ';:> ~:,'DATE',' The space b~ow f~/~m~i~ use . ~. ~e~ ~,] ~': ~:~ ?, '::,' · .. .... ~; ~: ~ :, ;, , Samples required ~YES []NO Permit number APPROVED BY Form 10-401 Mud log required [~YES Approval date , 12/04/84 CONDITIONS OF APPROVAL ~,:?, !ii~' Directional Survey re~'.u!i~'F,,eU !':i : ,J AP! number ~YES ~XlO ;i. ~.i "i:' ~.: ,,' ':' SEE COVER LETTER FOR O~. R~n~IR~MF~ ,,~. Rev. 7-1-80 ,COMMISSIONER DATE December 4, -~o~ by order of the Commission Submit in triplicate PROPOSED DRILLING PROGRAM Install and cement 30" 157.5~ Grade B conductor from 80' BGL to surface. Nipple up 29 1/2" x 500 MSP diverter system and function test same. Drill 26" hole vertically to 1500' BKB and run logs. Run and cement 20" 133~ K-55 buttress casing to surface. Nipple down diverter and install 21 1/4" x 2000 psi blowout preventer stack consisting of one set of pipe rams, one set of blind rams and an annular preventer. Drill 17 1/2" hole vertically to 5000' BKB and run open hole logs. Run 13 3/8" 729 L-80 buttress casing from surface to 5000' and cement in two stages. The first stage will place Class 'G' cement around the shoe and the second stage will place nonfreezing fluid followed by Permafrost cement in the 20" x 13 3/8" annulus through a DV collar placed approximately 100' inside the 20" shoe. Nipple down' 21 1/4" x 2000 psi BOP stack and install a 13 5/8" x 5000 psi blowout preventer stack consisting of two sets of pipe rams, one set of blind rams and an annular preventer. Drill and core 12 1/4" hole vertically to 10,300' BKB and run open hole logs. Run 9 5/8" 479 L-80 buttress casing from surface to 10,300' and cement in two stages. The first stage will place Class 'G' cement around the shoe and the second stage will place nonfreezing fluid followed by Permafrost cement inside the 13 3/8" x 9 5/8" annulus through a DV packer collar' placed at approximately 1500'. Drill and core 8 1/2" hole vertically to 12,950' BKB and run open hole logs. Run 7" 299 L-80 buttress casing from 12,950' to 10,000' BKB and cement with Class 'G' cement. Perform one cased hole drill stem test inside the 7" liner. Abandon the lower zone. Perform through tubing production tests in the 9 5/8" casing as required dependant on shows. Complete the well with production tubing for subsequent testing in future seasons if required. At the conclusion of testing operations for 1984/85 season, suspended in accordance with applicable State regulations. RECEIVED · 101884 Anchorage _i AN~JLAR PP~EVE~TI?~R i._ BLIND RAMS PIPE RAMS . _ ' I 21 1/4" x 2000 PSI BOP STACK 4" CHOKE LINE .~,,~__ ~ /~. [DRILLING ~ Iil ~ SPOOL ',g3,' "~ ~ 21 1/4" x MANUAL " 2M TOP G~TE ~SIST .PAD LEVEL 3" KILL LI~.~ 20 3/4" x 3000 PSi STARTING HEAD ,~ 20 3/4" x 3M BOS?OM MANUAL HYD Ct{ECK GATE~ ASSIST VALVE GATE RECE[ ,,.~ ,,,~:, ,,, ,[ Anchorage B.O.P. ~TACK CO, NFI(~UR(^TION.. 13 5/8" TRIPLE RAM STACK -- II _5000 PSI wp DRILLING ANNULAR PREVENTER PIPE RAMS BLIND RAMS KILL LINE CHECK GATE GATE 4" CHOKE LINE DRILLING SPOOL PIPE RAMS GATE HYDR. ASST. GATE '~:::' : ' "" .... '.,~' :,~~~:,,,,~ ~ o,.,°c'r~~, ~jo** .6as Cons , I ' '" ' ' I ...... " ~cho~a~e' Co~missio, i ~I iiii ' ~ ' , ., ,, := :,; ~... . .. . ;,;... [:.;~.., 'i..~ DIVERT52{ LINE HAS 15'73 DIRECTION DISCHARGE CAPABILITY AFTER LEAVING RIG SUB-~ASE. RIS.~LR 29 1/2" x 500 MSP ~ PREVENTER 29 1/2 x 500 MSP D IVERTER SYST~ 10 3/4" HYDRAULIC BUTTER~Y VALVE AUTOMATICALLY OPENS WHA~ ANNULAR PREAZENTER CLOS~ ~ lO" D~RTER LI~ MUD RISER DRAIN VALVE (BULL, PLUGGED) \ \\ DRILL IA~G SPOOL (PERFABRICATED FROM 30" CSG.) 30" CONDUCTOR ~, II~:~ I~' 11 I 20" CASING LA~317~G RING , .,./ / // 10 3/4' manual butterfly valves All pipe ~tions 1501 AI~SI Flang. es or ~e]~ec] connect i ohs. 2~ Planua] 10 3/4' butterfly valves, safety wired in open l~sition at diverter line tee. lO 3/4' 55~ Buttress 10' 3/4' liyOraulic operated Butterfly valve a~t. ically cgxms when Annula~ Preventer closes. Diverter Spool w/10 3/4' Outlet. : , , .: DIVERTER PROCEDURE 1. Rig up diverter system consisting of 29 1/2" x 500 MSP annular preventer with auxiliary equipment as shown on the diverter drawing. Connect opening side of hydrualic control for 10 3/4" butterfly to annular preventer closing line for simultaneous operation. Test operation after installation. 2. Lay daul diverter lines to reserve pit taking into account prevailing winds. 3. Open one valve on the reserved pit "tee" to vent flow depending on wind direction. Note: One "tee" valve to be open at all times. 4. In the event of well flow: a. While drilling, lift Kelly above 29%" annular. While tripping, install drillpipe safety valve (inside BOP). b. Close 29 1/2" annular. c. Pick up Kelly in tripping situation. d. Watch wind direction and adjust reserve pit "tee" as required. e. Pump mud slowly through bit to avoid plugging or freezing. f. After need for diverter has passed, purge line with steam or air. Note: The 10 3/4" hydraulic controlled butterfly valve, at diverter spool, opens by hydraulic line connected to the 29 1/2" annular closing line. This automatically opens the valve as the annular preventer closes. CRM:ckg 101984 /VII K UK )V~Z. I. # .f I~. ~J 6 . - ~~~i~~._ II ii I II L~ RECEIVED Alaska, Oil & Gas Cons. Corem IN ,,~C If, ?ItN, I ii Bi ii I I e ALASKA · iii ¢)te, gl~d : ..~ ., . / -(~ thru 8) 'NEW WELL PERMITS I $ . 3. 4. 5. 6. 7. 8. >/3>t / -3 ¥ ' 8L' ------ (3) Admin (/~---~' fo-3o~ 9. '(~/. thru '12) 10. (10 and 12) 12. (4) .Cas~ N~3-JJ //_! _~OZ/ ti3 'thru ~i) ' 13. 14. 15. 16. 17. 18. 19. 20. 21. (5) BOPE ~/~ //-/-z~/ (22 thru 26) 22. 23. 24. 25. 26. (6) Add: /~---~F //-'/'-Y~ Company ,..:, Lease & Well' No. Wi ~-' ~/ YES NO Is the permit fee attached . ........... ;.,. ..... ........ ...~ ...... .... / Is well to be located ina defined pool ............................. Is well located proper distance from property line .' .... Is well located proPer 'distance from other wells ................... Is sufficient undedicated acreage available in this pool ........... Is well to be deviated and is wellbore plat included .... ' ........... Is operator the only affected party ................................. Can permit be approved before ten-day wait Does operator have a bond in force .................................. Is a conservation order needed ................. .................... ~,-- Is administrative approval needed ................................... Is the lease number appropriate ...................................... Is conductor string provided ........................................ Is enough cement used to circulate on conductor and surface ......... Will cement tie in surface and intermediate or production strings ... Will cement cover all known productive horizons ..................... Will surface casing protect fresh water zones .... Will all casing give adequate safety in collapse, tension and burst,. Is this well to be kicked off from an existing wellbore ............. Is old wellbore abandonment procedure included on 10-403 ............ Is adequate wellbore separation proposed ............................ /¥f// REMARKS Is a diverter system required ....................................... Are necessary diagrams of diverter and BOP equipment attached Does BOPE have sufficient pressure rating - Test to ~'~/~'~ psig Does the choke manifold comply w/API RP-53 (Feb.78)...( .......... Is the presence of H2S gas probable ................................. .~A~itional requirements ............................................. ~~ional Remarks: ~.P£~Z£~£ '~)/Xl ?£AT~7'~7-g ~/5 ~,. ()R;~_~ ~ 7- 7~b INITIAL CLASS STATUS GEO. AREA UNIT NO. ON/OFF SHORE o ~ 0 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. RECEIVED MAY 2 4 1885 Alaska Oil & Gas Cons. Commission Anchorage .... ~ ~ ~ ~.~ ~ ...: .,~ ~ N'~..~ . . ~ :,: :: :; :: :>;: : ~ '~ ~ T ~ ~ ~ ~ [~ :~'~ ,,: ~, : :' .:' ..~.. ,, .~.:,;.; ..:,.: · ).;: ::...,:'~..,.~..).~.?: ,:).: .: · ]:.::::):.. :~::: :.: :::::::::::::::::::::::::::::::::::: :::: ,~. :...,..:: ::..::.:~: ::~: .~.~:. ~,, :.:.:,.:.: ....... . : :~ :.. ; .:; :::;:::':: $,:, ~::~;',,.; :..: :;';~ ::;: '::' .... ~ ' '~':: ~'"" :: ~' ':: F :,'::.. ; :.'~.:::': .'.:': .::..::~::;. ,: :,. ..... ....... _ : ========================================================================================================================================================================================================================= :.: : . ~,..,..~ .... ~..:..'~../. ~~ · ~:~'~"~' '.:~..i~:~' ~' ~' '~ '~"~ ~:?' ::":':':' "::' :'? · .. . ~" ':~. :,.;,.:.....;....,.~ ....... . ~::'.. ~: ~...~.: S.:.~::u....~....~ ..... . ::::::::::::::::::::::::::::::::::::::: :~ :.:: · ' GN.:.:.'.'.:'..':..'. · SOqI.:O.::~::L.~..S:~:A..:"P.:..!RG'.~E..U~:~. C.'OMP:AN~::':. '.." ..'.'" '... ": · '.'" : N .. .'. . '.:..':. '.' '.N.i.:.~:::C.::.A'T',. '"':'..:: ". ::. ..:.....'...:.' .." .. .'''. .... :." .'.: . ~ . . . . .. · .'$..' :: . · ::. . · . < .~. ~C'T ~ · ~ ~ :'"~"~" "' ' N. "S.L..~ ~. ~[ .. ~ "· .... ~.~:~.]~.~.~. ',...' :. . .... . "....' .. . ~ T A T ~ ~.L ~ S"~ .A '....:~T.R':.Y:.'~.' ..~.'.: ....,~ S'.A..':. .... ... '. '.' :~.:. 000-~ ~,~ 0.30 · : .. , . ~.~ 000 · : 'u.Ou ' 030 000 0.0:~ 000 OOO 002 ". "'00:0 - .' 000 OOO 006 . ':.:0 ~ SZZE 000 00 1 0~5 cVP Oi~.~g~ VE~I!PiSATI!~N L.i~TING PA~5 2 ': {~' ": ...' ..: '.'. :' .'."..:" · ' ."'..'..'..~'. '"..."." ..~... ?: ;~S · .. .C.6:;,~,P 'a'.N'.::f' :?.':'";. ' · . :' ..... :''..~''': .. . ;' ;S e';,:,. ;'a' ''**'.....a.,.;**a;'*~:'~'**%:~' :$-..,.a-,?. **'*' ":'*-~:,s U~,:..~:':c*;'*'";*':: · '.... F:.:~:~.~a~.~ a.:'...'... ... ..:.....':. · :'... :.'~x:',z:'L',:.o'~.,~':,~'...'.::~. :x::::. ,~:f':: '::f .;::.. -:: . ' ....... ~ ~u~ L · ' 'S"~'.A:.'~T"a.' ':: ': :.' : . 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