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100-241
1a. Well Status: GINJ Oil 1b. Well Class: Exploratory Service 5 Hilcorp North Slope, LLC 14. Permit to Drill Number/Sundry 100-241 6/13/1973 GL PRUDHOE BAY, PRUDHOE 4a. Surface: Top of Productive Interval: Total Depth: 4546' FSL, 1031' FEL, Sec. 11, T11N, R14E, UM 4546' FSL, 1031' FEL, Sec. 11, T11N, R14E, UM 4546' FSL, 1031' FEL, Sec. 11, T11N, R14E, UM Surface: x- y- Zone -685984 5939865 ASP 4 11. Gas SPLUG 5Abandoned 20AAC 25.105 Suspended 20AAC 25.110 WINJ WAG WDSPL No. of Completions: 6/16/2020 15. 50-029-21820-00-00 16. PBU OWDW-NE Well Name and Number: Surface / Surface 40.00 17. TPI:y- Zone -685984x-5939865 Total Depth: x-y-Zone -685984 ASP 45939865 2250' / 2250' None DNR Approval Number:19. 5. Directional or Inclination Survey: Yes No Submit electronic and printed information per 20 AAC 25.050 (ft MSL) 20.Thickness of Permafrost MD/TVD: CASING WT. PER FT.GRADE SETTING DEPTH MD TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED Location of Well (Governmental Section): Field/Pool(s): Date Comp., Susp., or Aband.:6. Total Depth (MD/TVD): CASING, LINER AND CEMENTING RECORD TOP BOTTOM 22. SETTING DEPTH TVD 72# 17#N-80 Surface Surface 279 cu ft AS 25. GRADE PACKER SET (MD/TVD) 26. None DEPTH INTERVAL (MD)AMOUNT AND KIND OF MATERIAL USED PRODUCTION TEST27. Date First Production: Not on Injection N/A Date of Test: Flow Tubing Press Oil-Bbl: Oil-Bbl: Gas-MCF:Water-Bbl: Oil Gravity - API (corr): Method of Operation (Flowing, gas lift, etc.): Gas-Oil Ratio:Choke Size: Water-Bbl: Open to production or injection?Yes No 524. If Yes, list each interval open (MD/TVD of Top and Bottom; Perforation Size and Number; Date Perfd): N-80 118'13-3/8" 5-1/2"Surface 2214'12-1/4"4560 sx PF II, 250 sx PF IISurface2214' 1940' / 1940' Gas-MCF: Production for Test Period Calculated 24 Hour Rate Hours Tested: Casing Press: 118' ACID, FRACTURE, CEMENT SQUEEZE, ETC. TUBING RECORD DEPTH SET (MD) Yes No 5Was hydraulic fracturing used during completion? Per 20 AAC 25.283 (i)(2) attach electronic and printed information ADL 028311 320-255 Other 12. SSSV Depth (MD/TVD): Ref Elevations BF Surface (attached) KB Form 10-407 Revised 3/2020 Sr Pet Eng Sr Pet Geo Sr Res Eng STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG Development Stratigraphic Test 2.Operator Name: 3. Address: 3800 Centerpoint Drive, Suite 1400, Anchorage, AK 99503 7. Date Spudded: 8. Date TD Reached: 9. 10. Plug Back Depth(MD/TVD): 4b. 4b. Location of Well (State Base Plane Coordinates, NAD 27): 57.90 Water Depth, if Offshore:13. N/A Zero API Number: Logs Obtained List all logs run and, pursuant to AS 31.05.030 and 20 AAC 25.071, submit all electronic data and printed logs within 90 days of completion, suspension, or abandonment, whichever occurs first. Types of logs to be listed include, but are not limited to: mud log, spontaneous potential, gamma ray, caliper, resistivity, porosity, magnetic resonance, dipmeter, formation tester, temperature, cement evaluation, casing collar locator, jewelry, and perforation record. Acronyms may be used. Attach a separate page if necessary 23. 18.Property Designation: 21.Re-drill/Lateral Top Window MD/TVD: N/A 1850' (Approx.) 5 Submit within 30 days of Completion, Suspension, or Abandonment UNDEFINED WDSP 6/17/1973 DIL, GR Neutron, 4-arm Caliper ASP 4 By Jody Colombie at 3:49 pm, Jul 15, 2020 Abandonment Date 6/16/2020 HEW RBDMS HEW 7/17/2020 xGDSR-7/20/2020SFD 7/17/2020MGR22JUL2020 If yes, list intervals and formations tested, briefly summarizing test results. Attach separate sheets to this form, if needed, and submit detailed test information per 20 AAC 25.071. Permafrost - Base Formation at total depth: Contact Name:Aras Worthington Contact Email: aras.worthington@hilcorp.com Authorized Name: Authorized Title: Authorized Signature with Date:Contact Phone: 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. 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. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. All laboratory analytical reports regarding samples or tests from a well must be submitted to the AOGCC, no matter when the analyses are conducted. Item 1a. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 1b. Well Class Service wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disp, Water Supply for Injection, Observation or Other. Item 4b. TPI (Top of Producing Interval). Item 9. The Kelly Bushing and Ground Level elevations in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 15. The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Item 20. Report true vertical thickness of permafrost in Box 20. Provide MD and TVD for the top and base of permafrost in Box 29. Item 22. Review the reporting requirements of 20 AAC 25.071 and, pursuant to AS 31.05.030, submit all electronic data and printed logs within 90 days of completion, suspension, or abandonment, whichever occurs first. Item 23. Attached supplemental records should show the details of any multiple stage cementing and the location of the cementing tool. Item 24. If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27. Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-in, or Other ( explain). Item 28. Provide a listing of intervals cored and the corresponding formations, and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30. Provide a listing of intervals tested and the corresponding formation, and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Item 31. Pursuant to 20 AAC 25.070, attach to this form: well schematic diagram, summary of daily well operations, directional or inclination survey, and other tests as required including, but not limited to: core analysis, paleontological report, production or well test results. 28.CORE DATA Conventional Core(s) Yes No 5 Sidewall Cores Yes No 5 If Yes to either question, list formations and intervals cored (MD+TVD of top and bottom of each), and summarize lithology and presence of oil, gas or water (submit separate sheets with this form, if needed). Submit detailed descriptions, core chips, photographs and laboratory analytical results per 20 AAC 25.071. Well Tested? Yes Top of Productive Interval Form 10-407 Revised 3/2020 Submit within 30 days of Completion, Suspension, or Abandonment 30. FORMATION TESTS29. GEOLOGIC MARKERS (List all formations and markers encountered): NAME MD TVD Permafrost - Top No 5 31. Summary of Daily Work, Photo Documentation, Wellbore Schematic DiagramList of Attachments: Information to be attached includes, but is not limited to: summary of daily operations, wellbore schematic, directional or inclination survey, core analysis, paleontological report, production or well test results, per 20 AAC 25.070. Carrie Janowski Sr. Regulatory Technician 564-4763 Digitally signed by Carrie Janowski (4185) DN: cn=Carrie Janowski (4185), c=US, o=Hilcorp North Slope, LLC, ou=Prudhoe Bay East, email=Carrie.Janowski@hilcorp.com Date: 2020.07.15 14:03:11 -08'00' Carrie Janowski (4185) ACTIVITYDATE SUMMARY 6/16/2020 OWDW-NE P&A: (Group Excavation) Pad elevation at 41.9' and Tundra elevation 37.4'. Cut previously P&A'd wellbore at 10.1' below pad grade. Leaving well 5.6' below Tundra level. AOGCC Adam Earl witnessed cut. All strings had competent cement. Cement tops and Marker plate installation witnessed by AOGCC Guy Cook ***Back fill excavation*** Daily Report of Well Operations PBU OWDW-NE MEMORANDUM Me FROM State of Alaska Alaska Oil and Gas Conservation Commission Jim Regg I�/ ��Z�Izt DATE: 6/16/2020 P. I. Supervisor Guy Cook SUBJECT: Surface Abandon Revisited Petroleum Inspector PBU OWDW-NE BPXA PTD 1002410 6/16/2020: 1 arrived on site and met John Perl with BPXA. We discussed the job and then headed to the well to confirm the cut-off depth and that there was good cured cement to surface before the installation of the identification plate. I also confirmed the proper information was on the identification plate as well. This well was abandoned in 1995 but well records indicate the well cut at a depth 3 to 5 feet below the pad level instead of at least 3 feet below original tundra level. Email approval from AOGCC on 6/12/2020 was granted to cut at the correct depth and reinstall a marker plate. The casing was confirmed to be cut off at 5.6 feet below tundra level. I then inspected the identification plate once it was installed. welds appeared to be solid with good penetration and to have sealed off the casing bore from the environment. After the inspection was complete, I gave Mr. Perl the go-ahead to bury the well. ,— Attachments: Photos (3) 2020-0616—Surface—Abandon PBU OWDW-NE_revisited_gc.docx Page 1 of 3 O r d' N O O F- H a LU z Q o O O OV M» W L IL o I � wd C it d N OU aO �O N O 0 R O N �oCO 3 t U) d ca Operator Name:2. Exploratory Development Service 5 Permit to Drill Number:100-241 6.API Number:50-029-21820-00-00 PRUDHOE BAY, PRUDHOE UNDEFINED WDSP BP Exploration (Alaska), Inc 5. Field/Pools:9. Well Name and Number: ADL 028311 Property Designation (Lease Number):10. 8. PBU OWDW-NE 7.If perforating: What Regulation or Conservation Order governs well spacing in this pool? Will planned perforations require a spacing exception? Stratigraphic Current Well Class:4. Type of Request:1.Abandon 5 Plug Perforations Fracture Stimulate Repair Well Operations shutdown Op Shutdown GAS GSTOR WAG SPLUG 5 Abandoned Oil WINJ Exploratory Development Stratigraphic 5Service WDSPL 12. Attachments: PRESENT WELL CONDITION SUMMARY 2250 Effective Depth MD: 11. June 12, 2020 Commission Representative: 15. Suspended Contact Name: Worthington, Aras J Contact Email:Aras.Worthington@bp.com Authorized Name: Worthington, Aras J Authorized Title:Interventions & Integrity Engineer Authorized Signature: Plug Integrity BOP Test Mechanical Integrity Test Location Clearance Other: Yes No Spacing Exception Required?Subsequent Form Required: Approved by:COMMISSIONER APPROVED BYTHE COMMISSION Date: OtherAlter Casing Pull Tubing Conditions of approval: Notify Commission so that a representative may witness Sundry Number: COMMISSION USE ONLY 17. I hereby certify that the foregoing is true and the procedure approved herein will not be deviated from without prior written approval. Detailed Operations Program Packers and SSSV Type: No SSSV Installed Packers and SSSV MD (ft) and TVD (ft): Perforation Depth MD (ft):Tubing Size: Size Total Depth MD (ft):Total Depth TVD(ft): 2250 Effective Depth TVD:Plugs (MD):Junk (MD): Other Stimulate Re-enter Susp Well Suspend Plug for Redrill Perforate Perforate New Pool 1940 / 1940 No SSSV Installed Date: Liner Well Status after proposed work: 16. Verbal Approval: Change Approved Program June 12, 2020 14. Estimated Date for Commencing Operations: BOP Sketch 41 - 118 Structural Proposal Summary 13. Well Class after proposed work: Baker D Packer None None Production Sufrace Surface Surface None 41 - 118 2670 Contact Phone:+1 907 564 4102 Date: 77 493013-3/8"Conductor GINJ 5 Post Initial Injection MIT Req'd? Yes No 5 Comm. STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION APPLICATION FOR SUNDRY APPROVALS 20 AAC 25.280 Surface Intermediate 2174 5-1/2" 17# N-80 40 - 2214 40 - 2214 7740 6280 Address:P.O. Box 196612 Anchorage, AK 99519-6612 3. No 5Yes Casing Length MD TVD Burst Tubing Grade:Tubing MD (ft):Perforation Depth TVD (ft): Collapse MPSP (psi): Wellbore Schematic Comm.Sr Pet Eng Sr Pet Geo Sr Res Eng Form 10-403 Revised 03/2020 Approved application is valid for 12 months from the date of approval. 0HO5L[VH By Samantha Carlisle at 5:24 pm, Jun 12, 2020 320-255 Aras Worthington Digitally signed by Aras Worthington Date: 2020.06.12 12:52:02 -08'00' DSR-6/12/2020 Photo document as described. MGR17JUN2020 10-407 SFD 6/15/2020MGR17JUN20 Yes equired? Comm 6/18/2020 dts 6/17/2020 JLC 6/17/2020 RBDMS HEW 6/18/2020 OWDW-NE Plug and Abandon Intervention Engineer Aras Worthington (907) 564-4102/(907) 440-7692 Expected start date: June 12th 2020 History Prudhoe Bay Unit Oily Waste Disposal Well Southwest (OWDW-NE) was P&A’d in 1988 with a rig and cut off ~5’ below pad level with a marker post welded on. In the 2020 campaign to excavate, cut, and cap the other four OWDW wells (C, NW, SE, and SW) the NE well was also unearthed. Objective Excavate and cut off all casings 3’ below original tundra, permanently install well name cap, and backfill excavation. Procedural steps Special Projects 1. Excavate and Cut off all casings 3’ below original tundra level. 2. AOGCC witness of cut-off casings before any top job commences. 3. AOGCC witness cement tops in all annuli. 4. Bead weld marker cap on outermost casing string (13-3/8” Conductor). Photodocument all steps and AOGCC witness of installed cap. Marker cap to read as follows: BP Exploration Alaska, Inc OWDW-NE API No. 50-029-21820-00 PTD No. 100-241 Photo document. Photo document. 2 BP EXPLORATION ALASKA INC. 900 E BENSON BLVD ANCHORAGE ALASKA, 99508 Correction to OWDW Well Coordinates ,RECEIVE® AOGCC What happened: We discovered that the reported coordinates for the following oily waste disposal wells (OWDW) were approximately 100 feet off from their actual locations: OWDW-C, OWDW-NE, OWDW-NW, OWDW-SE, and OWDW-SW. What went wrong: 1) We found no evidence that an as -built survey was performed for the original (1973) observation well completions. 2) These observation wells were converted to disposal wells circa 1976-78, again with no record of as -built survey. 3) When these wells were worked -over in 1985, the rig completion forms used location references that were incorrect and in a non-standard format. 4) The locations were revised c. 1988 and recorded in the standard location format (offset distances from section lines). No evidence was found to indicate that these revised locations were verified by field survey. 5) The revised locations all had 'from north line' (FNL) measurements that fell approximately 100 feet short of their actual locations. 6) The erroneous FNL measurements were used to compute the coordinates of these wells. The resulting coordinates were all approximately 100 feet northerly of the actual well locations. What has been done in response: 1) As -built surveys were performed on 4 of the 5 OWDW wells • These surveys were certified by a registered Professional Land Surveyor (PLS) • The new coordinates were verified by a BP surveyor before and after being input into our system of record. 2) The 5th well (OWDW-SW) was suspended in 2012. The wellhead was cut off below pad -level. • A BP surveyor has computed 'best -estimate' coordinates, based on historical records. These coordinates are estimated to be within +/- 4 feet of the actual location. • The best -estimate coordinates and the associated uncertainty were input into our system of record. 3) A BP Surveyor performed a fieldwide audit on all existing wells in the Prudhoe Bay Unit. No errors of similar magnitude were detected. Barriers in place to prevent this from happening again: 1) The fieldwide well audit verified that coordinates for the other existing wells do not suffer from the same problem. 2) All new 'grassroots' wells require an as -built survey, certified by a registered PLS. Karl H. Kyzer, PLS Lead Surveyor, BP Exploration Alaska Inc. May 7, 2019 DRILL SITE 6 MON. 6—D Q v a z N_ N 9 O, A A� Af DRILL SITE 6 OWDW-NW OWDW—NE (ABDN) (FIND YELLOW POST) ■ OWDW–C ■ OWDW–SE GRAPHIC SCALE LEGEND PLANT COORDINATES 0 15 30 60 �- AS–BUILT CONDUCTOR (IN FEET CELLAR I BOX EL. BASE FLANGE EL. 1 Inch : 3 30 0 R ■ E10STING WELL 70'14'26.395" 14829'52.600' 70.2406654' 148.4979445' CONTROL MONUMENT NOTES: 1. ALASKA STATE PLANE COORDINATES ARE ZONE 4, NAD27. 2 GEODETIC POSITIONS ARE NAD27. 3. BEARINGS AND DISTANCES SHOWN ALASKA STATE PLANE ORD. 4. BASS OF VERTICAL CONTROL IS DRILL SITE 6, 2018 WELL BORE SUBSIDENCE STUDY, MONUMENT 6–D, ELEVATION, EL 35.30. S DRILL SITE O6 AVERAGE SCALE FACTOR IS 0.999938& 6. DATE OF SURVEY: SEPTEMBER 19-20, 2018. 7. REFERENCE HELD BOOK: NS18-33 PP. 45-50. & ESTIMATED RELATIVE ACCURACY (THIRD ORDER): BASELINE DISTANCE: 1:16,916' BASELINE AZIMUTH: t12' AVERAGE RELATIVE ACCURACY: *VAI' 9. NAD27 COORDINATES DERVED USING TRIMBLE BUSINESS DRILL SITE 6 ..SEC SEC 111. •SEC SEC 11 12— PAD 3 VICINITY MAP SCALE: 1 1000' F mothy hornhart 10200 Piaui. � SURVEYOR'S CERTIFICATE I HEREBY CERTIFY THAT I AM PROPERLY REGISTERED AND LICENSED TO PRACTICE LAND SURVEYING IN THE STATE OF ALASKA AND THAT THIS AS–BUILT REPRESENTS A SURVEY MADE BY ME OR UNDER MY DIRECT SUPERVISION AND THAT ALL DIMENSIONS AND OTHER DETAILS ARE CORRECT AS OF SEPTEMBER 20, 2018, CENTER–HCE, VER. 3.92. DRILL SITE 6 MONUMENT 6–D 10. GEODETIC COORDINATES DERIVED USING AUTODESK AUTOCAD CIVIL Y– 5,942.09442 N- 7,318.55 ELEVATION: 35.30' MLLW 3D 2018. VER. 120.6420. X- 685,138.02 E- 3,94553 NAD27, ASP, ZONE 4 PAD 3 PLANT DESCRIPTION: FROST FREE MONUMENT IN V DIA STEEL CASING, 27FTi ABOVE TUNDRA GRADE, 365FTt NORTH OF DRILL SITE 6 PAD. MONUMENT IS IN FAIR CONDITION. LOCATED WITHIN PROTRACTED SECTION 11, T. 10 N., R. 14 E., UMIAT MERIDIAN, ALASKA WELL NO. A.S.P. COORDINATES PLANT COORDINATES GEODETIC POSITION(DMS) GEODETIC POSITION(D.DD) SECTION OFFSETS PAD ELEVATION CELLAR I BOX EL. BASE FLANGE EL. OND NE (ABDN) Y= 5,939,865.27 X= 685,984.48 N= 5,023.63 E= 4,594.34 70'14'26.395" 14829'52.600' 70.2406654' 148.4979445' 4,546' FSL 1,031' FEL N/A N/A N/A JEREl _ by V coy PRUDHOE BAY, ALASKA A6 EOA DS6/PAD 3, WELL OWDW—NE K,"p ""�� °°S°' 1• _ 3w ABANDONED CONDUCTOR AS—BUILT t ff t North America - ALASKA - BP PBUSAT OWDW OWDW-NE - Slot NE OWDW-NE 500292182000 Design: OWDW-NE Final Survey Report 10 January, 2019 �r e e Company: North America - ALASKA - BP Proieet: PBUSAT Site: OWDW Well: OWDW-NE Wellbore: OWDW-NE Design: OWDW-NE BP Final Survey Report Local Coordinate Reference: Well OWDW-NE -SIm NE TVD Reference: KB @ 57.90usft (2: NE 6/18/1973 00:00) MD Reference: KR @ 57.90usft (2 : NE 6/18/1973 00:00) North Reference: True Survey Calculation Method: Minimum Curvature Database: EDM R5K - Alaska PROD - ANCPt Project PBUSAT, PBU, PRUDHOE Map System: Alaska NAD27 State Plane Zones System Datum: Mean Sea Level Geo Datum: NAD27' OGP-Usa AK [4267'15864] Using Well Reference Point Map Zone: NAD27'OGP-Usa AK/ Alaska zone 4[26734'1586, Using geodetic scale factor Site OWDW, TR -10-14 Site Position: «E/ -W Direction From: Map Position Uncertainty: 0.00 usft Well OWDW-NE-Slot NE, OWDW-NE Well Position i141 -S 0.00 usft +EI -W 0.00 usft Position Uncertainty 0.00 usft Wellbore OWDW-NE Magnetics Model Name Sample Date bggn12007 4/17/2000 Design OWDW-NE Audit Notes: Version: 1 Phase: Vertical Section: Depth From (TVD) (usft) 5790 Survey Program Date 1/10/2019 From To (usft) (usft) Survey (Wellbore) 100.00 2,200.00 Survey#1 (OWDW-NE) 1/10/2019 852:15PM Northing: Eastinq: Slot Radius: Northing: Eastinq: Wellhead Elevation: Declination 27 15 5,937,242.500 usft 683,394.810 usft 0.000 in 5,939,865.220 usft 685,984.480 usft . usft Dip Angle 80 79 ACTUAL Tie On Depth: 57.90 +N/ -S «E/ -W Direction (usft) (usft) (°) 0.00 0.00 0.00 Tool Name BLIND Page 2 Description Blind drilling Latitude: Longitude: Grid Convergence: Latitude: Longitude: Ground Level: Field Strength (rT) 57,474 70° 14' 1 231 N 148'31'9.716 W 1.39 ' 70° 14'26.395 N 148° 29'52.600 W 0.00usft COMPASS 5000.1 Build 81D Company: North America - ALASKA - BP Project: PBUSAT Site: OWDW Well: OWDW-NE Wellbore: OWDW-NE Design: OWDW-NE Survey BP Final Survey Report MD Inc Azi (azimuth) TVD TVDSS (use) 1°) 1°I (usft) (usft) 57,90 0.00 0.00 57.90 0.00 100.00 0.00 0.00 100.00 42.10 2,200.00 0.00 0.00 2,200.00 2,142.10 2,250.00 l 0.00 0.00 2,250.00 2,192.10 1/102019 8:52: 15PM Pape 3 COMPASS 5000.1 Build 81D Local Coordinate Reference: Well OWDW-NE - Slot NE TVD Reference: KB @ 57.90usft (2: NE 6/18/1973 00:00) MD Reference: KB @ 57.90usft (2 : NE 6/18/1973 00:00) North Reference: True Survey Calculation Method: Minimum Curvature Database: EDM R5K - Alaska PROD - ANCP1 WS E/W Northing Easting DLeg V. Sec (usft) (usft) (waft) (usft) (°1100usft) (usft) 0.00 0.00 5,939,865,220 685,984.480 0.00 0.00 0.00 0.00 5,939,865.220 685,984.480 0.00 0.00 0.00 0.00 5,939,865.220 685,984.480 0.00 0.001 0.00 0.00 5,939,865.220 685,984.480 0.00 0.001 1/102019 8:52: 15PM Pape 3 COMPASS 5000.1 Build 81D Stephanie Pacillo Data Manager Schlumberger Oilfield Services WIRELINE 2525 Gambell St, Ste. 400 Anchorage, AK 99503 2: Office: (907) 273-1770 NAME ORDER # DATE: 24 -May -13 TRANS#: 6375 \ (,C.D - 2'4- \ RECEIVED MAY 2 8 2013 MakanaK Bender AOGCC • Natural Resources Technician II Alaska Oil & Gas Conservation Commission 333 W. 711, Ave, Suite 100 Anchorage, AK 99501 (907 ) 793-1225 makana.bender c-,alaska_<Jo,., LOGGED PRINTS PRINTS 0 LDWG EDIT OF RST LDWG DIT OF RST EMAR UNJ 'MEMORY IPPROF MAR� � X Please return a signed copy to: BP PDC LR2-1 900 E Benson Blvd Anchorage AK 99508 S MW OCT 0 2 2014 X E'1 It '` Please return a Signe copy to: Wireline 2525 Gambell St, Suite 400 Anchorage AK 99503 11 t ALASKA INDIVIDUAL WELL PRODUCTION AS OF 10/23/96 M WELL -NAME: PRUDHOE BAY UNIT OWDW-NE API: 029-21820-00 LEASE: ADL -28311 OPERATOR: ARCO ALASKA INC FIELD/POOL: PRUDHOE BAY, PRUDHOE UNDEFINED SALES CD - ACCT GRP - FINAL STATUS: SER WDSPL CURRENT STATUS: SER P&A ** DISPOSAL PROJECT ** 1978 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC METH OTHER DAYS 31 OIL WTR 44,305 GAS 1978 TOTALS OIL WATER 44,305 GAS CUM OIL CUM WATER 44,305 CUM GAS 1979 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC METH OTHER DAYS 31 OIL WTR 47,081 GAS 1979 TOTALS OIL WATER 47,081 GAS CUM OIL CUM WATER 91,386 CUM GAS 1980 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC METH OTHER DAYS 31 OIL WTR 93,170 GAS 1980 TOTALS OIL WATER 93,170 GAS CUM OIL CUM WATER 184,556 CUM GAS 1981 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC METH OTHER DAYS 31 OIL WTR 57,930 GAS 1981 TOTALS OIL WATER 57,930 GAS CUM OIL CUM WATER 242,486 CUM GAS 1982 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC METH OTHER DAYS 31 OIL WTR 123,807 GAS 1982 TOTALS OIL WATER 123,807 GAS CUM OIL CUM WATER 366,293 CUM GAS 1983 JAN FEB MAR. APR MAY JUN JUL AUG SEP OCT NOV DEC METH OTHER DAYS 31 OIL WTR 88,848 GAS 1983 TOTALS OIL WATER 88,848 GAS CUM OIL CUM WATER 455,141 CUM GAS 1984 JAN METH DAYS OIL WTR GAS 1984 TOTALS OIL ALASKA INDIVIDUAL WELL PRODUCTION AS OF 10/23/96 FEB MAR. APR MAY JUN JUL AUG SEP OCT NOV DEC OTHER 31 97,864 WATER 97,864 GAS 10161 016 CUM WATER 553,005 CUM GAS 1c-apfm 10jan95 LOCATION CLEARANCE REPORT State of Alaska OIL AND GAS CONSERVATION COMMISSION PTD No. 00-e4( Memorandum To File: API No. Well Nam Name Operator Location 029 - 2GFS'20 L& u (3 Uj c'-' W /(�C Agco 9Q4- ff. `7`l© Abnd Date Spud: Cjf JL:3 TD: 2 z5 -o" , Completed _C 7 73 Note casing size, wt, depth, cmt vol, & procedure. . Sfc Cog: -�l2v / E` ti Q 2 eta u;l 4s-60 s, P /r fi 257 s r. -lazy, ; v � Long Cog: Liner: Perf intervals - tops: Review the well file, and comment on plugging, well head status, and location clearance - provide loc. clear. code. Plugs: C /_9 z Sir r- .5` IF LQrav . /Z a f3 an -Ao Well head cut off: Qs Marker post or plate: teas Location Clearance: Conclusions: Ujpft Code R Signed -,o V-0 Date 2ro 3l9 s- STATE OF ALASKA' r ALASKA OIL AND GAS CONSERVATION COMMISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well OIL r' GAS ❑ SUSPENDED ❑ ABANDONED SERVICE ❑ Classification of Service Well 2. Name of Operator ARCO Alaska, Inc. 7. Permit Number 0D "P3 ' 41 Disposal Permit #WPC 77-9 3. Address P.O. Box 40360 AReher-age, AK _ 4. Location of well at surface 635' FNL, 1031' FEL, Sec .11 , T10N, R14E, UM At Top Producing Interval N/A At Total Depth 635' FNL, 1031' FEL, Sec.11, T10N, R14E, UM 8. API Number 50— N/A 9. Unit or Lease Name N/A 10. Well Number Pad 3-OWDW NE 11. Field and Pool N/A 5. Elevation in feet (indicate KB, DF, etc.) RKB 57.9 6. Lease Designation and Serial No. 1 50H10 ADL 28311 12. Date Spudded 06/13/73 13. Date T.D. Reached 06/101/73 14. Date Comp., Susp. or Aband. 12/28/88* 15. Water Depth, if offshore N/A feet MSL 16. No. of Completions N/A 17. Total Depth (MD+TVD) 2250'MD/TVD 18.PIug Back Depth (MD+TVD) I Surface 19. Directional Survey YES ❑ NO 20. Depth where SSSV set N/A feet MD 21. Thickness of Permafrost N/A 22. Type Electric or Other Logs Run 4 -Arm Cal. DIL 23. CASING, LINER AND CEMENTING RECORD SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED n 3 Ara Camant 5-1 11 , 1 9_1 /101 -tic -sat Top job W/250 SK 12122 24. Perforations open to Production (MD+TVD of Top and Bottom and interval, size and number) None • 25. TUBING RECORD SIZE DEPTH SET (MD) PACKER SET (MD) N/A 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT & KIND OF MATERIAL USED Plug f/1239'-2135 125 sx CS I Plug f/surf'-331' 50 sx CS I 5-1/21' csq & 5-1/2" x 13-3/8" ann 13 sx AS I 27 WA PRODUCTION TEST Date First Production Method of Operation (Flowing, gas lift, etc.) Date of Test Hours Tested PRODUCTION FOR TEST PERIOD OIL -BBL GAS -MCF WATER -BBL CHOKE SIZE GAS -OIL RATIO Flow Tubing Press. Casing Pressure CALCULATED 24-HOUR RATE OIL -BBL GAS -MCF WATER -BBL OIL GRAVITY -API (corr) 28, CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. None RECEIVED AQ i !'! 19 -q,`'�i R_ Alaska 0if & Gas Cons Qom Note: Drilled RR.6/17/73. Completed and perforated well 3/8/78. Plug and abandoned well'12 Form 10-407 Submit in duplicate Rev. 7-1-80 WC5/076 CONTINUED ON REVERSE SIDE 29. GEOLOGIC MARKERS 30. FORMATION TESTS , NAME Include interval tested, pressure data, all fluids recovered and gravity, GOR, and time of each phase. N/A MEAS. DEPTH TRUE VERT. DEPTH N/A 31. LIST OF ATTACHMENTS Nnne 32. 1 hereby certify that the foregoing is true and correct to the best of my knowledge Signed_ -/" Title Regional onal Dr i l l i n9 En 9 9 UWr 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 (QF, K6, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other -explain. Item 28: If no cores taken, indicate "none". Form 10-407 WC5/076 ' ATLAP�TiC RICiiFIELO CO: 'A'V'Y :.: SL -3-1 Qd UN i P .Ri�L►F'ROST TEST SITE. IN RUN SURVEY ICOR HEAST July 13, 1973 TRUE TRUE CORREGT'EO BGG-LEe REC jNCULAR CCCU LiilA� TES ASURE 0 VERT IC L I%CL INA TT CN` BEARING SEVERI i Y LATi iLLE CECtaRTvRE vErTti DEPTH !?cG ► IN aEG MIN DEG/IOC U. 0.: 0 0 N C 0 E C.O. N X3.0 E [5. 25.x0 t? 4 S 47 '? 0030 C.LI S 0.01 �U. 50. CC 0 .3. Ni 84 13 E ... "t�•22''--0.02- S 75. 75 . G C 0 4 N54 3 C.�r4 _ C. C 1 S - 0.04 E 1CU. 10G.GO 0 7 S.29 17 E -0.71 C.C3 S 0.04 125.00 0 3 S 32 45 C 0.25 L. C6 5 0.06 150 • 15U . O C 0 4 S 12 22 E 0.12 0.09 S 07 E 175. 17 5. G0 0 6 S 4S 47 gni t�.37 C.. 12 S 0.05 E 2Cv. 200.00 0 5 S .5 10 E u.34 C.15 S 0 Oz. E 225. 225-00 0 8 S 28 1 E 0.25 250.00 0 7 S 49 45 L 0.20 Ci.2S $ s_ 275. 275.00 0 5 S 57 56 E 0.13 C.2� S v. 12 E 3GU. 300.00 0 3 5 42 33 W ' 0'.,44 C. 28 S G. I3 E 325. CU C 10 S 10 18 E 0.59 x:.32 S C. 13 E 3 50, 350. GG 0 5. S 39 21 E1. O 4U L^E C. �8 S 0.15 ?,"t5. :''375.00 0 tr S 4i� 4 E C.4C S C.`.fi E 430.00 0 1 S 51 13 -- 0.22 V.42 S u. 19 E 42,5. 425.00 0 5 S E 55 W 0.28 C.44 S u. 15 E_ 4 50 0 450.00 0 4 S 43 45 W C.47_ S '_ . is E r?J. 4?;.00 .: 0 5 S 20 24 W C.14 _ C.yS S. - t0. i5 E U:. 50J.CG `0 9 c oC =r3! 0.42 C. 3 S 0a i3 E . 525. 525.00 0 10 S 67 31 W 0-08 _ C.56 S 550 • CC 3 9 S9 26 .E 0.76 0.60 S 0.i: w 74.9S o 3 S i7 3 '438 e.c4 s 500. 599.9s 0 6 5 45 56 E 0.2b C S C. G? E b25. b24.c9 0 7 S 31 4i E 0.12 C.71 S . ifl E L 50 649.SS 0 7 c 47 9 c x.13 C.75 S 0..3 E 675• 674.59 0 b S 4 55 :i t3.3fi C.78 S G 15 E 1 0. 1699 ;5 0 11 S 2c 15 LE G. _C.84 S 0.16 -1250 724.C#90 8 S 40 28 E 0.26 C.rp S 0.20 L _ SG. 749-9'; 0 5 S 24 b E C.2 E C.44 S 0. 23 E r 775. 774.99 0 8. $ 5 36 W x.29 C.►t>3 S u.23 c cUG. 79- 95 0 10 S 1E 6 E C.27.05 S C.24 :. fi t 5. 824.9 S 0 5 S 35 30 AE 0.32 1. 09 S 0.26 N X1:0. £49.SS 0 5 S 8: 35 E 0.30 1.I1 S O.z� L .5. i;?�:. �i5 0 3 S 66 31 W 0. 54 1.12 j fJ. iii E Cit,U. 8911 .9S 0 G. S 3 41 C t;ri 1.15 S :.0.29 A- ti25. ��L4.9S 924 0 4 S 33 47 E 0.31 _ 1.19 S 0.30 L u 549. S5 0 1G S 42 40 E 97.37 1.23 S G. 33 E . 975. 574.99 U 7 S 42 43 E 0.14 1.28 S {:.37 E 999.99 0 10 S %4.459 E 0.29 3..3i S 0.43 ._ . 1024.59 G 7 N 77 i3 E 0.43 1 .32 S 0.x;9 E J:v. 1049.9S 0 4 S 68 14 E u.2F3 A..�2 5 0.53 E 1015. 1074.9S 0 4 N 38 32 E 0.35 1.31 S 0.55 E :Uv. 1099.9s0 4 N N 56 �i4 19 48 E E J.09 0.10 1.2S 1.2& S 5 0.57 C. 59 L I: 125. 1124.99 0 3 1150. 1149.95 0 9 N 18 22 W 0.54 1.24 S iJ.59 c I i 75. 1174 .9 2 V 10 N 20 26 W 0.36 <- 1.18 S 0.56 E 1200. 1199. S o 0 10 N 24 8 W 0.0 If.: - 1. 11 S 0.54 E 1225. 1224.9E 0 11 N 13 27 E 0.45 1.04 S 0.53 E SL-3-16E06 €ALN 1 TRUE TRUE CC=RECTLD CGG--LCG ncCTA�Gt LAR Ci; ����� �"CS SUkL D VERTICAL INCL Ii\ATICN i;' ING SEVERI TY LAT IIUCE DyPAIRTi;it ;:;T DEPTH UEG M IN ULEG MIN OLE G110i: 12 50- 1249. 9 E . 0 11 7 34 W C' 27 C .76 S 0.53 �75. 127A.SE 0 7 ,'1 12 20 'W1 C.26 C.ES S 0.52 C :Gu. :.299.5 C 0 ' 11 ti 27 .3.4 '�t C,.2 v C. 33 S G. �0 E :;25. 1324.5E t 0 9 ti 3� 31 r! G.10 C.77 S C.It6 E 1350. 1"34y.Sa 0 17 N 61 25 W10.61 C.?i S 3S E 1 75. i.37��.c,E 0 13 N?7 45 W0.4u^ C.ba 5 0.23 E 4L0. 1399 .S E 0 10 h 75 10 W C. 13 C.%b S 0.23 1425. 1424. S E 0 12 S 81 42 W 0.27 C.6b S a 1? 1 t:0. 1449.` 8 0 12 S 15 1 k 0.09 C.vc3 S O.0 E i4 15. 1474.5 E a 13 S 8S 35 W 0.23 C.69 S 0.05 � 5c;0. 1499. S F U 21 S 71 4 '► 0.63 C. 71 S 0. 17 is .� ..�k:ZCNTAL DISPLACE+AII:NT AT DEPTH 1500. IS 0.7 FEET !iT S 3 40 < nUc VERTICAL DEPTH IS 1455:99 FEET ,APALij ID AL CALCLL TI0NS ATUNTIC R1Cr IZELD CO:TA T PL 1.xFRuS i TEST SITZ NOIRTHEAS J my 13, 1973 Z - O POD, IT FLA GL u a MAY $ Uas1 Oil & Gas coni: C 'nchor,� �r��� on w TRUE TRUE. CGRREG i t-U Wit-LCV Kti.;;+�\vULHR L��.:.:�a�tr��:.. icASURED' VERTICAL :A+CLiNATI ON BEHAK1NG Sc1lE2ITY LATITUDE flEPA2+USE DEPTH UEP TH' 10EG M Inti DEG MI V DEG/100 1500. 1499.SE G 21 S 71 3 w 0.71 S ,D 17 w 1525. 1524.98 0 21 S 66 32 k 0.11 0.76 S 0.31 W 1550. 1549. S i3 0 20 S 5S 27 ty 0. ? I3 0.83 S 0.4 1575. 15.74.58 0 12 S 82 29 W 0.67 0.87 S 0.53 W 1603. 1599.9E 0 11 S 6G 40 W 0.30 0.90 S 10.03 e1 1625. 1624.98 0 9 S E 32 W C.63 0.95 S 0.67 W 1650. 1649.9c 0 14 S 52 38 W G. '07 1.01 S• 0.71 114 1675. 1674.98 0 8 S 24 54 W X0.51 -1.107 S 0.76 W I 7CO. 1699.5 E 0 17 S 43 52 W 0.63 1:14 S -£}.9G 725. 1724.S7 0 21 .S 32 33 k .6 03 1.25 S Co .1 1750. 1749.97 0 24 S 15 33. 0.48 1.40 S 6.97 k 1775. 1774.9 7 G 18 S 28 12 s. C.51 1.54 S 3.02 1 £300: 1799.S7 0 20 S 35 26 W 0.2 8 14065 S 1.10 1825. 1824.9 7 0 24 S .18 45 0.59 I.79 S 1.17 t: 1850. 1849. S 7 0 30 S 18 4 :1 0.41 --1.98 S 1.23 r 1.075. 1374.97 0 24 S 16 49 W 0,40 2..16 S ':.29 :e: 1900. 1899.5 7 C -'28 S 4 38 E -0.71 2.35 S 1.31 ri 5. 1924.97 0 37 S 8 44 E 0.58 2.59 S 1028 W �0. 1949.S6 0 43 S 1S 45 E 0.64 2.87 S I.2 1975. 1S74.96 0 24 S 25 8 E ..1.28 3. C9 S 1. 12 W 2000. 1999.96 0 29 S 22 9 E 6..33 3.27 S 2025. 2024.96 0 31 S 22 24 E 0.1.1 3.47 S 04090 Z0:0. 2t;49.5:. 0 44 S 26 53 E 0.88 3.72 S 0, 84 lti 2075. 2074.96 0 41 S 40 11 c 0.68 3.97 S t�.6t3 =• 2100. 2099.96 0 37 S 45 37 E -0.33 4..18 S 0.48 1.r+ i - 1-iDRIZONTAL DI SPLACE-RENT AT. D4. 2100. IS 4.21 rEc3 'AT S• . h 35 TRUE V ERT ICAL CEPT H IS 2095.5E EEET TR A PA ZQ IDAL CALCULAT IONS, ATI,A' I T IC RICHFIELD C CX PAN PE�;•:AFROST TES SITE NO:1,T:AEAST July 13, 1973 ZERO POINT: 'MSE FLANGE w STATE OF ALASKA AI.Abr(A OIL AND GAS CONSERVATION COMMIStatSN REPORT OF SUNDRY WELL OPERATIONS 1. Operations performed: Operation shutdown w Stimulate _. Plugging ✓ Perforate — Pull tubing . Alter casing _ Repair well _ Pull tubing ! Other -!:::.Plug and Abandon 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF or KB) ARCO Alaska Inc. Development,. Exploratory Stratigraphic RKB 57.9' feet 3. Address 7 Unit or Property name P.O. Box 100360 Anchorage, AK 99510-0360 Service N/A 4. Location of well at surface _ 8. Well number 635' FNL, 1031' FEL, Sec.11, T10N, R14E, UM Pad 3-OWDW NE 9. Permit number/approval number At top of productive interval N/A Qisposal Permit #WPC 77-9/8-756 10. API number At effective depth N/A 50- N/A 11. Field/Pool At total depth 635' FNL, 1031' FEL, Sec.11, T10N, R14E, UM N/A 12. Present well condition summary Total depth: measured 22501MD feet Plugs (measured) 1239'-2135' w/125 sx CSI true vertical 22501TVD feet surf -331' w/50 sx CS I Surface 5Jurik2(11 /2" x 13-3/8" ann w/13 sx AS I Effective depth: measured feet Surface measred�-1 tia�l� true vertical feet Casing Length Size Cemented Measured depth True vertical depth Structural Conductor 831 13-3/8" 279 ft Dowell Arctic Set 831MD 831TVD Surface 2214' 5-1/2" 4560 sx PF II 22141MD 22141TVD Intermediate Top job w/250 sx PF I I Production Liner Perforation depth: measured None open to production. true vertical None open to production. Tubing (size, grade, and measured depth) - _ None depth) �� 1 �. S Packers and SSSV (type and measured None rrmr 13. Stimulation or cement squeeze summaryQ► C�oC�;g�► N/A Intervals treated (measured) Treatment description including volumes used and final pressure 14. Representative Daily Average Production or Injection Data N/A Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation Subsequent to operation 15. Attachments 16. Status of well classification as: Abandoned r Copies of Logs and Surveys run _ Disposal Well Daily Report of Well Operations ✓ * Oil _ Gas — Suspended Service 17. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. �D - Signed I Title Regional Drilling Engineer Date / Form 10-404 Rev 06/15/88 * Plug and Abandonment Well History (Dani) SW04/005 SUBMIT IN bUPbCATE Atl d.W/ ARCO Oil and Gas Company „ Well History - Initial Report - Daily Instructions: Prepare and submit the "Initial Report' on the first Wednesday after a well is spudded or workover operations are started. Daily work prior to spudding should be summarized on the form giving inclusive dates only. APT! N/A Operator ARCO W.I. ARCO Spudded or W.O. begun Date Hour Prior status if a W.O. ACCEPT 12/22/88 Date and depth Complete record for each day reported as of 8:00 a.m. NORDIC 1 12/22/88 ( ) NU BOPE MW:14.3 OEM TD: 2250 MOVE RIG TO PAD 3,ACCEPT RIG @ 0000 HRS 12/22/88. ND TREE, PB: 2214 SET BPV IN 2-3/8" TUBING,SET BLANKING PLUG ON TOP OF BPV, NU SUPV:DCS 7-1/16" BOPE. DAILY:$16,610 CUM:$16,610 ETD:$16,610 EFC:$350,000 12/23/88 ( ) RIH W/ MILL & SCRAPER MW:14.3 OEM TD: 2250 TEST BOPE &CHOKE MANIFOLD, FABRICATE BELL NIPPLE & INSTALL PB: 2214 SAME, POOH W/ 1-1/4" TUBING, CHG RAMS TO 2-3/8,,, POOH W/ SUPV:DCS 2-3/8" TUBING & LD SAME, RIH W/ 4-3/4"MILL & 5-1/2"CSG SCRAPER ON 2-3/8" WORKSTRING. DAILY:$91,348 CUM:$107,958 ETD:$107,958 EFC:$350,000 12/24/88 ( ) MU EZSV CMT RET. MW:13.7 OBM TD: 2250 RIH W/ MILL & SCRAPER TO 1925', COULD NOT CIRCULATE, POOH 2 PB: 2214 STDS AT A TIME•ATTEMPTING TO BREAK CIRCULATION, HOLE BEGAN SUPV:DCS LOSING FLUID, COULD NOT FILL HOLE, PUMP LCM PILL, POOH W/ MILL & SCRAPER, RIH W/ K-1 CMT RET TO 1916, COULD NOT SET, POOH, MU EZSV CMT RET. DAILY:$38,352 CUM:$146,310 ETD:$146,310 EFC:$350,000 r C E, v, E D A'`,$:., i `; Alaska Oil & Gas Cons. Gommission anchorage The above is correct Signature For form prepdratlon and distribution, see Procedures Manual, Section 10, Drilling, Pages 86 and 87. Number all daily well history forms consecutively (Page no. as they are prepared for each well. AR3B-459-1-D ARCO Oil Gas Company Nor Daily Well History —Final Report Instructions: Prepare and submit the "Final Report" on the first Wednesday after allowable has been assigned or well is Plugged, Abandoned, or Sold. "Final Report" should be submitted also when operations are suspended for an indefinite or appreciable length of time. On workovers when an official test is not required upon completion, report completion and representative test data in blocks provided. The "Final Report" form may be used for reporting the entire operation if space is available. Accounting cost center code District ARCO ALASKA INC. County or_Pat1 PH SLOPE State I�U Field PRUDHOE/ LISBURNE Lease or �NRIO ADL: 28311 PBU OWDW—NE Well no. Auth. or W.O. 0548 Title PLUG & ABANDONMENT API: N/A OperatorARCO A.R.Co. lS.i0.0000 Total number of wells (active or inactive) on this Producing Interval Oil or gas cost center prior to plugging and Production Oil on test abandonment of this well Spudded or WRCriI Date 12/22/88 Hour 0000 HRS Prior status ii a W.O. Date and depth Complete rec6lpr fachl ay reported ff !iU tt�: as of 8:00 a.m. 12/25/88 ( ) RIG RELEASED MW:12.4 OBM h : 2250 RIH W/ EZSV RET, SET RET @ 1920', PRESSURE TEST CSG TO 2000 PB: 2214 PSI, SQUEEZE 5 BBL CMT BELOW RET, SPOT 15.8 BBLS CMT ABOVE SUPV:DCS RET (125 SX CS I — TOTAL), POOH 16 STDS, CBU, POOH LD TBG, Effective date MU CMT RET & RIH, SET RET @ 331' & TEST ABOVE RET TO 2000 PSI, CIRC CMT TO SURFACE (50 SX CS I), POOH TO 4' & WASH OUT TOP OF WELL, CLEAN RIG, ND BOPE, RIG RELEASED AT 0600 HRS 12/25/88. DAILY:$122,563 CUM:$268,873 ETD:$268,873 EFC:$350,000 12/26/88 PREP TO MOVE — WAIT ON WIND 12/27/88 CLEANING RIG — WAIT ON WIND DUG OUT AROUND SURFACE CSG OF WELL TO +/-5' BELOW GROUND LEVEL. PREP TO CUT OFF. 12/28/88 CLEANING RIG — WAIT ON WIND — PREP TO MOVE WIND WALLS DID 13 SX TOP JOB WAS I. CMTD 5-1/2" CSG F/ 45'—TOP OF CUT—OFF & 5-1/2" X 13-3/8" ANNULUS F/ 10'—TOP OF CUT—OFF. PUMP 2.7 BBLS OF SLURRY. JOB WITNESSED & APPROVED BY HAROLD HAWKINS (AOGCC). WELD ON PLATE & WELL MARKER. Old TO New TO PB Depth Released rig Date Kind of rig Classifications (oil, gas, etc.) Type completion (single, dual, etc.) Producing method Official reservoir name(s) eotenuai test aata Well no. Date Reservoir Producing Interval Oil or gas Test time Production Oil on test Gas per day Pump size, SPM X length Choke size T.P. C.P. Water % GOR Gravity corrected Allowable Effective date the aDOveIS ga Signetu(e—��. For form preparation and distribution, see Procedures Manual, Section 10, Drilling, Pages 86 and 87. AR38-459-3-C Number all daily well history forms consecutively I Page no. as they are prepared for each well. Division of AtlanticAlchfieldCompany ■ PRUDHOE BAY OPERATIONS ENGINEERING PAD 3 OILY WASTE DISPOSAL WELL (OWDW) INFORMATION 4 WELL NAME: OWDWI NE,1. SURFACE LOCATION: 635' FNL & 1031' FEL Sec 11, T1 ON, R14E, UM BOTTOM HOLE LOCATION: Straight Hole SPUD DATE: 2230 hrs 6-13-73 COMPLETION DATE: 8-09-73 with 2 3/8" tubing WORKOVER DATE: 3-7-78 with dual tubing strings TD: 2250' MD PBTD: 2214' MD LOGS RUN: SP/DIL 4 -ARM CALIPER PERFORATION: 2087-2107' (3-4-78) DATE WELL BEGAN DISOPOSAL SERVICE: 3-05-78 CURRENT STATUS: Collapsed tubing @ 30' SS. Well suspended with a P&A propose, 14.3 ppg oil base mud in wellbore. A 1'Z Mac.OWDW Info Form (3/5/88) PAD 3 OILY WASTE DISPOSAL WELL LOG OF EVENTS OW DW NE EVENT 06-13-73 Spud well 06-17-73 Log S P/D I L, 4 -arm caliper to 2241' MID Ran 5 1/2" 17# N-80 casing to 2214' MID 06-18-73 Released rig 08-09-73 Ran tubing for circulating glycol: 64 jts 2 3/8" to 2005' MD 03-05-78 Converted to disposal well Initial perfs 2087'-2107' @ 4 spf Ran GR/CCL PBTD=2112' MD 03-07-78 Wo rkover: Ran dual tubing strings 2 3/8" and 1 1/4" 05-27-84 Repaired wellhead 09-04-84 PIT survey 10-03-84 PIT survey - Incomplete Parted tubing during job. Well SI and injection suspended. 10-19-84 Killed well with 14.3 ppg oil base mud. 11-14-84 P&A proposal approved by state. Never performed. a :.�M1.= M O RAN D M Statebf Alaska, ALASKA OIL AND AS CONSERVATION COMMISSION TO: Lonnie C Smith f DATE: January 5, 1989 r Commissioner FILE NO: D ADA..153 TELEPHONE NO: THRU: Michael T Minder •' i/' SUBJECT BOP Test Sr Petroleum Engineer AAI PBU Disp Well 2NE Permit No. 77-09 Prudhoe 01-1 Pool FROM: Doug Amos Petroleum Inspector Thursday December 22 1988: 1 traveled this date from. AAI PBOG to to witness the BOF test on disposal well: 2NE. The testing commenced at 8:00 a.m: and was concluded at 10:30 a.m. There were no failures; however, this was not a complete test. The blind rams could not be tested because there was no way to seal off the 9 5/8" casing. This was a dual completion., and there was no test plug available for the 1k" tubing string. Also, the kelly and floor valves were not going to be used for the plugging program, and I waived the testing of these valves. I filled out an AOGCC BOPS inspection report which is attached, In summary, I witnessed the successful BOP tent at AAI PBU disposal well 2NE on Nordic Rig No, 1, Attachment 02-001A (Rev. 8/85) 0&G #4 50/84 M STATE OF ALASKA ALASKA OIL & GAS CONSERVATION COMISSION B.O.P.E. Inspection Report " Date l , Les Inspector 0 Well /- L PO '2I16 Operator /4x jo a Representative ,)Ayl a( SIM'* Well 1 1�l�l # /V Permit �� i » o>�erf4i4 IV,,, 77 -AT Location: Sec_.L_T_�Z4 RL :f2 Casing Set @ Z7,14: ft. Drilling Contractor &Oedla Rig #J Representative Location, General VI"" Well Sign V"" ACCUMULATOR SYSTEM General Housekeeping_�`Rig t Full Charge Pressurpsig Reserve Pit a Pressure After Closure psig Mud Svstems Visual Audio Pump incr. clos. pres. 200 psig min L& Trip Tank `N /A { Q1 Pit Gauge Flow Monitor Gas Detectors " Ii " BODE Stack Annular Preventer Pipe -Rams I Blind Rams'`t),, Choke Line Valves' H.C.R. Valvey' I Kill Line Valves Check Valve iok i. Test Pressure a Full Charge Pressure Attained: min sec. N` �.P®4. 0o y 215bo J 1Soo psig '. Controls: Master Remote Blinds switch cover Yes Kelly and Floor Safety Valves Upper Kelly_ Test Pressure 1V` Lower Kelly s Test Pressures Ball Type tr Test -Pressure t. Inside BOP f� Test Pressure t/ Choke Manifold est Pressure No. Valves t No. flanges Adjustable Chokes j Hvdrauically overated choke Test Results: FailuresTest Time .—hrs . Repair or Replacement of failed equipment to be made within days and Inspector/ Commission office notified. Remarks Ata e : Id I 1 11 " 6 1Jol lt %A CIS 10 4A tV Jqw"U e`er lie b �ed ot Distribution orig. - AO&GCC - cc - Operator° cc - Supervisor Inspectcr IEMORANDL7`M StateZf Alaska ALASKA OIL AND GAS CONSERVATION COMMISSION TO: Lonnie C SmithDATE: January 5, 1989 Commissioner /I FILE NO: D. IU�H. 7 2 TELEPHONE NO: THRU: Michael T Minder SUBJECT Wellbore Plugs Sr Petroleum Engineer AAI PBU Disp Well 2NE Permit No. WPC 77-9 FROM: Harold R Hawkins Petroleum Inspector//-,,-' f Tuesday, December 27, 1988: 1 left Anchorage at 7.15 a.m. by Alaska .172.rlines for Prudhoe,, arriving at 8:45 a.m. I went to AAI PBU Pad 3 to witness a P&A on well 2NE. When I arrived the cementing was supposed to be in place. The casinghead was cut off, but no cement visible. David Sims called in a cement truck to top off cement to surface. Cement was 12' low in -5.5 casing was 45' low. Atop jab was 13 3/8 to surface. The, _erformed and both the p --13 3/8 casing and 5.5 casing were cemented to the surface. Wednesday, December -.28, 1988: 1 witnessed the 5.5" marker post with �zr a plate welded secely to the 13 3/8 stub that was approximately 5' below surface leved, with all required well data bead welded onto the marker post. I filled out an AOGCC schematid Ill which is attached. In summary, I witnessed the cutting off of casinghead and top cement job of the 13 5/8 x 5.5' casing at AAI PBU 2NE at Pad 3. The plug and abandonment was successful. Attachment 1/13 89 1 changed the 5.5 tubing in my report to 5.5 casing per onnie Smith's order. All I witnessed was the top cement job and the marker post with all data welded to the top of the 9 5/8 casing. I was told the Commission waived the bottom cement jobs to be inspected by the inspectors' staff. The standard field schematic is the standard form O&G Noi. 11 made by the Commission. 02-OOIA (Rev. 8/85) 'ALASKA OIL AND GAS CONSERVATION COMMISSION URFACE ABANDOP*IENT REPORT r 20 AAC 25, ARTICLE 2 �%.r FILE INFORMATION: Operator Address X 01( 3" . Apr �h Surface Location of Well ' 4 Ft. F.Z/ L, 1Q ,Z/ Ft. F 4�" L, Sec. _, T Rte! j�_, •jj M. 20 AAC 25.120: WELL ABANDONMENT MARKER: Date Downhole P & A16 /� g 1 `1 Lt � 6 - Q26 0 Permit No. API No. 50- Z/ Unit or Lease Name Well No. / ,Cly Field & Pool i.J Dia. Steel Post .(4"Min.) = c , Length (10' Min.) Height Above Final Grade Level (4' Min.) Top of Marker Pipe Closed with: Cement Plug Screw Cap Welds, Set: On Well Head,-, On Cutoff Casing , In Concrete Plug Distance Below Final Grade Level ! Ft. in. Side Outlets: All Valves and Nipples Removed_ All Openings Closed_, With Blinds-; With Cements Other S7' f,MA,7 INFORMATION BEADWELDED DIRECTLY TO MARKER POST: (List Where Different from File Information) Operator -AA I Unit or Lease Name Well NumberD/ W Surface Location of Well: -' �3jr Ft . F14Z Ll Ft. , F L, Sec +, Tom ./ , Rly M 20 AAC 25_.170: LOCATION CLEAN-UP PITS: Filled In Liners Removed or Buried Debris Removed SURFACE OF PAD AND/OR LOCATION: A," Rough , Smooth Contoured Flat Compacted , Other CLEAN UP OF PAD AND/OR LOCATION: W/4 - Clean , Pipe Scrap Iron Scrap , Wood Paper Other SURROUNDING AREA: ,4//A Wooded , Brush Tundra Sand Other , Mud , Cement , , Grass , Dirt , Gravel , CONDITION SURROUNDING AREA: plA Clean Trash from Site Trees and/or Brush from Clearing Site , Other ACCESS ROAD: Dirt , G avel , Ice , Other CONDITION ACCESS ROAD AND SURROUNDING:111d Clean , Rough , Smooth , from Operations Trees and or Brush from Clearing Road Spoil from Clearing Road Other REMAINING TO BE DONE:�4 RECOMMEND -APPROVAL OF ABANDONMENT: INSPECTED BY 05/26/81 R Yes .A No Final Inspection DATE 9 ,9 7 0 l STATE OF ALASKA AL KA OIL AND GAS CONSERVATION COMM e. N P 1'� a° A PLICAT ON FOR SUNDRY APPROVALS W,.-- 1. Type of Request: Abandon X Suspend _,. Operation shutdown _ Re-enter suspended well _ Alter casing _ Repair well _„ Plugging ... Time extension , Stimulate _. Change approved program _ Pull tubing -)L Variance _ Perforate ._ Other 2. Name of Operator 5. Type of Well: 6. Datum elevation (DF or KB) Development , feet ARCO AlAAkA. Inn- Exploratory _ Stratigraphic _ ' 3. Address 7. Unit or Property name P. 0. Box 100360 Anchorage, AK 99510-0360 Service ,.)i N/A 4. Location of well at surface 8. Well number 635' FNL, 10311 FEL Sec.11, T10N, R14E, UM At top of productive interval #2 NE 9. Permit number N/A Disposal Permit #WPC 77-9 10. API number At effective depth 635' FNL, 1031' FEL, Sec.11, T10N, R14E, UM 50 N/A 11. Field/Pool At total depth 635' FNL, 1031' FEL, Sec.11, T10N, R14E, UM N/A 12. Present well condition summary Total depth: measured 22501MD feet Plugs (measured) None true vertical 22501TVD feet Effective depth: measured 2087'MD feet Junk (measured) None true vertical 20871TVD feet Casing Length Size Cemented Measured depth True vertical depth Structural Conductor 831 13-3/8" 279 ft3 Dowell Arctic Set 831MD 831TVD Surface 2214' 5-1/2" 4560 sx Permaf.rost II. 221411MD 22141TVD Intermediate Top job"w/250 sx PFC'Il Production Liner Perforation depth: measured 20871-21071 RECEN E D true vertical 20871-21071 '� 3 �,L,'OCT$� 0 Tubing (size, grade, and measured depth) 2-3/811, 4.7#, J-55, 1965' ®;l & GaS Cans. C4n1i�iSSOt i E pnchotags 1-1/411, 2.4#, J-55, 1919' Packers and SSSV (type and measured depth) Baker IDB' Packer @ 19401, No SSSV 13. Attachments Description summary of proposal J& Detailed operations program _ BOP sketch _. 14. Estimated date for commencing operation 15. Status of well classification as: November 1 1988 Oil _ Gas _ Suspended _ 16. If proposal was verbally approved Name of approver Date approved Service Disposal Well 17. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Signed Title Date FOR COMMISSION USE ONLY Conditions of approval: Commission so representative may witness (Dani) SA3/0053 Approval No. Plug integrity ^ BOP Test — Location clearance r z Mechanical I teg 'ty Test _ Subsequent form required 10- approved Copy Returned ORIGINAL. SIGMED BY �� f LONNIE C. SMITH Approved by order of the Commissioner Commissioner Date Form 10-403 Rev 06/15/88 SUBMIT IN TRIPLICATE M PROCEDURE SUMMARY OWDW-NE N%.W/ Objective: The objective of this workover is to remove the collapsed 2-3/8" tubing and the 1-1/4" tubing. The well will then be plugged and abandoned. 1) MIRU Nordic. 2) ND tree. NU BOPE and test. 3) PU landing jt. and screw into 1-1/4" lift threads. 4) POOH with 1-1/4" circulating string. L.D. 1-1/4" tubing. 5) MU 2-3/8" landing joint. Pull and L.D. hanger and 2-3/8" tubing. 6) RIH with bit and scraper. Displace well to water base mud. POOH. 7) RIH and set cement retainer at ±1920'. Pressure test casing to 2000 psi. 8) Squeeze cement through retainer to spot cement from retainer to 2212'. 9) Spot cement plugs from ±1920' to ±1400'. 10) RIH and set cement retainer at 300'. Pressure test casing to 2000 psi. 11) Spot cement plug from 3001 t 3' below rig grade level. 12) ND BOPE. 13) Release rig. 14) Remove wellhead, verify cement at surface and install abandonment marker. 15) Complete remaining abandonment work as required. SA3/0053.2 Workover Fluid: 14.3 ppg BHP: 925 psi RECEIVED 0(;T o'-) 1988 la*a Oil & Gas Cons. C©mmis�iar' Anchorage m m EelI 111101 UD wl Ni1' p 1. 16" CONDUCTOR SWAGED TO 10-3/4" 2. 11 "-3000 PSI STARTING HEAD 3. 11 "-3000 PSI X 7-1/16"-5000 PSI TUBING HEAD 4. 7-1/16" - 5000 PSI PIPE RAMS 5. 7-1/16" - 5000 PSI BLIND RAMS 6. 7-1/16" - 5000 PSI ANNULAR ACCUMULATOR CAPACITY TEST 1. CHECK AND FILL ACCUMULATOR RESERVOIR TO PROPER LEVEL WITH HYDRAULIC FLUID. 2. ASSURE THAT ACCUMULATOR PRESSURE IS 3000 PSI WITH 1500 PSI DOWNSTREAM OF THE REGULATOR. 3. OBSERVE TIME, THEN CLOSE ALL UNITS SIMULTANEOUSLY AND RECORD THE TIME AND PRESSURE REMAINING AFTER ALL UNITS ARE CLOSED WITH CHARGING PUMP OFF. 4. RECORD ON THE IADC REPORT. THE ACCEPTABLE LOWER LIMIT IS 45 SECONDS CLOSING TIME AND 1200 PSI REMAINING PRESSURE. BCP STACK TEST 1. FILL BOP STACK AND MANIFOLD WITH ARCTIC DIESEL. 2. CHECK THAT ALL HOLD-DOWN SCREWS ARE FULLY RETRACTED. PREDETERMINE DEPTH THAT TEST PLUG WILL SEAT AND SEAT IN WELLHEAD. RUN IN LOCK -DOWN SCREWS IN HEAD. 3. CLOSE ANNULAR PREVENTER AND CHOKES AND BYPASS VALVES ON THE MANIFOLD. 4. TEST ALL COMPONENTS TO 250 PSI AND HOLD FOR 10 MINUTES. S. INCREASE PRESSURE TO 1800 PSI AND HOLD FOR 10 MINUTES. BLEED TO ZERO PSI. 6. OPEN ANNULAR PREVENTER AND CLOSE PIPE RAMS. 7, INCREASE PRESSURE TO 3000 PSI AND HOLD FOR 10 MINUTES, 8. CLOSE VALVES DIRECTLY UPSTREAM OF CHOKES. BLEED DOWNSTREAM PRESSURE TO ZERO PSI TO TEST VALVES. TEST REMAINING UNTESTED MANIFOLD VALVES, IF ANY, WITH 3000 PSI UPSTREAM OF VALVE AND WITH ZERO PSI DOWNSTREAM, BLEED SYSTEM TO ZERO PSI, 9. OPEN PIPE RAMS. BACKOFF RUNNING JOINT AND PULL OUT OF HOLE. CLOSE BLIND RAMS AND TEST TO 3000 PSI FOR 10 MINUTES. BLEED TO ZERO PSI, 10. OPEN BLIND RAMS AND RECOVER TEST PLUG. MAKE SURE MANIFOLD AND LINES ARE FULL OF ARCTIC DIESEL AND ALL VALVES ARE SET IN THE DRILLING POSITION. 1 1 . TEST STANDPIPE VALVES TO 3000 PSI. 12. TEST KELLY COCKS AND INSIDE BOP TO 3000 PSI WITH KOOMEY PUMP. 13. RECORD TEST INFORMATION ON BLOWOUT PREVENTER TEST FORM. SIGN AND SEND TO DRILLING SUPERVISOR. 14. PERFORM COMPLETE BOPE TESTEEK AND FUNCTIONALLY OPERATE BOPE DAILYRECE _E U OCT 0 9x.98$ Alaska Oil & Gas Cons. Commis110" Anchorag0 JG JULY 28, 1986 ( NORDIC RIG 10-3/4") 1007,4101, 4i4o.,10, AW) '1144600011440(h) W#; J -55t 1WO P71 Woe 1081 Pack*r 0 1940', 'No $SSV 0mlso POW oww" PW -06'r of** ciaWutv� it W0006 gm swov0d lea vjowovv 30726N -7��f OF ALASKA A AND004 LAbw., 04L CA>4ft-1 -PON comull aft.eft, ON FOR SUNDRY A owsow, 4* so"V4,,_ 2, 4sm-4-o-f btu,vor T4W of WA: OVA040? 1 0 Oxy 4 4, Lx&w Of 411' L. �v- lzrc�llo TIONp R14to UM Prfmzvt4 i " b 0 um 11 t1ok Al VA Mea% RUN I JION'"!IIM ["L , lbw Are Jtrl 'a vrV4 100 1 vu fw I oll Imc ow Junk {me t' YOU.* 204?'TVD tit &x COT~ 270 ft-) DOW011 Arctle $*t 0IND 1 060 &A POMOff6tt H 14 Top job "/ISO ox FF{ 11 4.k as 1007,4101, 4i4o.,10, AW) '1144600011440(h) W#; J -55t 1WO P71 Woe 1081 Pack*r 0 1940', 'No $SSV 0mlso POW oww" PW -06'r of** ciaWutv� it W0006 gm swov0d lea vjowovv O&G #11 r=kUNP-1141 AbluNLUINLI11UN-1 WELLBORE WELL NAi\-I=p 2AJ AAI PE P -M, i�' Pj 0 .: R/ I'a Tg,,lkCATFP 70PI! A C--Iqk AwIft "tilt IL OICA If jv,6�0/ 604 7' V*04 nil XV1104 4 3 � .-- I I 4e P JOR 60 Y M i(fflk Z 4: R PA&4 IYAIVRI�f C.CMIENTRETA! fNF--R T,12, AT, Li C E- M E Pi T ARCO Alaska, Inc... Post Office o 100360 Anchorage, Alaska 99510-0360 Telephone 907 276 1215 co, co-mo— RES EP,►G 1.SR E;qG SR E,N'G October 31, 1986 S Fi GAOL SR GEOL Blair Wondzel l ------- ____ ASST Alaska Oil and Gas Conservation Commission (AOGCC) ENG EidG ASST 3001 Porcupine Drive STAT TECH Anchorage, Alaska 99501-3192 STF►TT'ECH Subject: Prudhoe Bay Unit Oily Waste Disposal Wells (Pad 3) FILE: ' Dear Mr. Wondzell: As we discussed in our October 16, 1986 telephone conversation on this subject, attached is the data you requested on the Pad 3 wells to update and complete your files since you now regulate Alaska underground injection control matters for these wells. In future correspondence related to these wells, they wily be referred to as the Oily Waste Disposal Wells, as a group. The individual wells will also carry the designations NE (northeast), NW (northwest), SE (southeast), SW (southwest), and C (center), which represent their locations on the pad, with respect to each other. If you have any questions or desire further information, do not hesitate to call me at (907)265-6136. Sincerely, eol�oe Mark A. Major Operations Coordinator Prudhoe Bay Operations MAM/plw:073 Attachments RUM .D NOV 0 5 19$6 Alaska Off & Gas Corns, Commission Anchorage ARC Ala;!.Inc. r Suhs,eiarc' AtlanticR'_nfic':Company 1 t Pad 3 Oily Waste Disposal Well (OWDW) Information Wells Name and,Number/Designation Lease Number Surface Location Bottom Hole Location Spud Date Rig Release Date Date Completed Well Depths Plug Back Depth Initial Class/Service Initial Status Current Class Current Status Perforations Date well was placed into disposal service Volume of fluid injected through 07-31-86 MAM:073.3 10-29-86 OWDW NE ADL 28311 14�4c �L �� i e + nn - of Sec 11, T10N, R14E, UM Straight hole 1030 Hrs 06-13-73 1800 Hrs 06-17-73 3-07-78 2250' MD 2250' TVD 2112' Thaw subsidence test well Service Class I (grandfathered by EPA) Inactive pending permitting by EPA. Will be P & A'ed due to collapsed tubing 2087' - 2107' ± 08-03-77 (see attached letter) See attachment on injected volume RECEND 1 NOV 0 51986 Alaska 0711L Gat"C 66Oommiss �n An-.�i,:i00` qV Pad 3 Oily Waste Disposal Well (OWDW) Information Wells Name and Number/Designation Lease Number Surface Location Bottom Hole Location Spud Date Rig Release Date Date Completed Well Depths Plug Back Depth Initial Class/Service Initial Status Current Class Current Status Perforations Date well was placed into disposal service Volume of fluid injected through 07-31-86 MAM:073.3 10-29-86 OWDW NE ADL 28311 32751S & 1609'E from NW corner of Sec 11, T10N, R14E, UM Straight hole 1030 Hrs 06-13-73 1800 Hrs 06-17-73 3-07-78 2250' MD 2250' TVD 2112' Thaw subsidence test well Service Class I (grandfathered by EPA) Inactive pending permitting by EPA. Will be P & A'ed due to collapsed tubing 2087' - 2107' ± 08-03-77 (see attached letter) See attachment on injected volume ECE laska pig Gay . 4OMMi.SS;111 Injected Volumes NW & NE OWDWs Pad 3 Prior to 1985, records were not maintained in a fashion to determine how much fluid went down each of these wells. Additionally, records for injection activities prior to 1978 are unavailable. The volumes injected down either or both of these wells, by year, after 1977 are: 1978 88,610 BBLS 1979 949162 BBLS 1980 1869340 BBLS 1981 115,860 BBLS 1982 247,614 BBLS 1983 1779697 BBLS 1984 195,727 BBLS It should be pointed out that some data was missing i -n the 1978 and 1979 records for these wells. From 1/1/85 - 7/31/86, zero BBLS have been injected down the NE well and 151,711 BBLS have been injected down the NW well. MAM:073.8 10-29-86 WELL: OILY WASTE DISPOSAL WELL NE Proposed Abandonment Configuration COMPLETION: ALL DEPTHS ARE RKB 3/7/78 TUBINGASTRINGSORUNErEO AND 13-3/8" @ 100' • N1 250 SX CEMENT 1-1/4" HfDRIL FLUSH JOINT ,. CIRCULATING STRING @ 1919` 2-3/3 `- HYDR I L C. S. ruB I NG S-1/2" X 2-3/8" MODEL ''D" OACKER @ 1940 2087, 2107. PBTD 2112' 5-1/2" @ 2214' W/4560 SX CEMENT • CEMENT 1127640`5 r STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION ES AND REPORTS ON WELLS SUNDRY NOTICES � 1. DRILLING WELL ❑ COMPLETED WELLXlx-1 OTHER ❑ 2. Name of Operator 7. Permit NO -Alaska State ARCO Alaska, Inc. Disposal Permit #WPC 77- 3. Address 8. API Number P. 0. Box 100360, Anchorage, AK 99510 50— N/A 4. Location of Well 9. Unit or Lease Name Prudhoe Bay - Pad 3 N/A 10• Well Name NE corner Sec.11, T10N, R14E, UM 11. Field and Pool N/A 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. I N/A N Check Appropriate Box To Indicate Nature of Notice, Report, or Other Data 12. 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). The well was drilled in June 1973, as part of a program to study thaw subsidence. Five wells were drilled and cased to 2200' in a closely spaced five-spot pattern. After the testing was completed, the monitoring equipment was removed (sometime in June, 1975). The Northeast well was later completed with 2-3/8" tubing and packer in February, 1978, and was utilized as an oily waste disposal well. On September 26, 1984, while doing an injection rate test, the 2-3/8" tubing apparently parted at 23' below surface. The SICP was 600 psi, On October 19, 1984, ARCO Alaska, Inc., killed the well with a 14.3 ppg oil -base mud. The well is presently shut-in with zero pressure at the surface. The well is not suitable for production and would require a major workover to recomplete. Therefore, it is our recommendation that the well be plugged and abandoned. ARCO Alaska, Inc., proposes to pump 300 sacks of permafrost -type cement into the well, leaving a cement plug from the perforations to surface inside the tubing and in the annulus. The tubing would remain in the well. After the cement hardened, the wellhead equipment would be removed and a P & A marker installed. Estimated Start: December 15, 1984 RECEIVED 11 OV 14 Alaska Oil & Cas Cons. Commission Anchorage 14. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. <!—��!f�ia,✓ Title Area Drilling Engineer Date Signed The ace {below for Com ion use Conditions of Approval, if any: Approved itsturrne,-; I�I! By Order of /_� Y ;" a COMMISSIONER the Commission Date Approved by - C.. L. ; "Ir.rer.:�ncin TrinliratP Form 10.403. --- n^ PWO/03b:tw and "Subsequent Reports" in Duplicate * -==6 20 STATE OF ALASKA ALASKA &L AND GAS CONSERVATION OMISSION SUNDRY NOTICES AND REPORTS ON WELLS 1, DRILLING WELL ❑ COMPLETED WELLxR3 OTHER ❑ 2. Name of Operator 7. Permit NO -Alaska State ARCO Alaska, Inc. Disposal Permit #WPC 77- 3. Address[� DRILLING 8. API Number P. 0. Box 100360, Anchorage, AK 99510 50— N/A 4. Location of Well ANCHORAGE FILE COPY 9. Unit or Lease Name Prudhoe Bay - Pad 3 N/A 10. Wel 1 Name pp ,�10--Well KRyr 9t t S � j, INC.- NE corner Sec.11, T10N, R14E, UM Northeast Dinpnnal Wall 11. Field and Pool N/A 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. N/A 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 ❑ Pull Tubing ❑ Other Cl 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 drilled in June 1973, as part of a program to study thaw subsidence. Five wells were drilled and cased to 2200' in a closely spaced five-spot pattern. After the testing was completed, the monitoring equipment was removed (sometime in June, 1975). The Northeast well was later completed with'2-3/8" tubing and packer in February, 1978, and was utilized as an oily waste disposal well. On September 26, 1984, while doing an injection rate test, the 2-3/8" tubing apparently parted at 23' below surface. The SICP was 600 psi. On October 19, 19849 ARCO Alaska, Inc., killed the well with a 14.3 ppg oil -base mud. The well is presently' shut-in with zero pressure at the surface. The well is not suitable for production and would require a major workover to recomplete. Therefore, it is our recommendation that the well be plugged and abandoned. ARCO Alaska, Inc., proposes to pump 300 sacks of permafrost -type cement into the well, leaving a cement plug from the perforations to surface inside the tubing and in the annulus. The tubing would remain in the well. Afteri the cement hardened, the wellhead equipment would be removed and a P & A marker installed. Estimated Start: December 15, 1984 RECEIVED s. - N V 1 41984 Alaska Cil & C �S CanS. Anchorap 14. 1 hereby certify that the foregoing is true and correct to the best of my knowledge. Title �/`�ia,✓ Area Drilling Engineer / �Date i Com' Signed The ace slow for Com ' ion use Conditions of Approval, if any: By Order of -SZ/ Approved by COMMISSIONER the Commission Date Form 10-403 QuvmI[ onientwns in I re" 11.a►a 0e -,_, _on PWO/03b: tw and "Subsequent Reports" in Duplicate C WELL: OILY WASTE DISPOSAL WELL NE ALL DEPTHS ARE RIB 13-3/8" @ 100' w/250 sx cement 2-3/8" Hydril C.S. Tubing COMPLETION: 3/7/78 - Perforations completed and tubing strings run 1919 Bottom 1-1/4" Hydril Flush Joint Circulating String 5-1/2" x 2-3/8" Mo•3el "D" Packer @ 1940 2087 2107 RECEIVED .. PBTD 2112 NOV 14 1984 ,. 5-1/2" @ 2214 /# Ska Oil & Gas Cots G i;iMsM w/4560 sx cement Anch ra } ARCO Alaska`r Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 276 1215 T October 12, 1984 Mr. C. V. Chatterton Commissioner State of Alaska Alaska Oil & Gas Conservation ' Commission 3001 Porcupine Drive Anchorage, AK. 99501 SUBJECT: #1 NW & #2 NE Disposal Wells Dear Mr. Chatterton: Enclosed for your files/records, are informational copies of sundries describing the workovers that will be done on the subject wells. If you have any questions, please call Jo Ann Gruber at 263-4944. Sincerely, T. L. Fithian Area Drilling Engineer TLF/JG/tw GRU1/L83 Enclosures xc: J. Gruber, ATO 1478 P. N. Hellstrom, ATO 2030 M. A. Major, ATO 1318 RECEIVED Brad Fristoe, ADEC (Fairbanks) . OCT 2 4 1984 Alaska Oil & Gas Cons. Commission Anchorage ARCO Alaska, Inc. Is a Subsidiary of AtlanticRichfield Company • STATE OF ALASKA ALASK IL AND GAS CONSERVATION -a(AMISSION SUNDRY NOTICES AND REPORTS ON WELLS 1 DRILLING WELL ❑ COMPLETED WELLXW FOR INFORMATION ONLY 2. Name of Operator ARCO Alaska, Inc. 3. Address P. 0. Box 100360, Anchorage, AK 99510 4. Location of Well Prudhoe Bay - Pad 3 NE corner Sec.11, T10N, R14E, UM 5. Elevation in feet (indicate KB, DF, etc.) 6. Lease Designation and Serial No. OTHER ❑ 7. Permit No. Alaska State Disposal Permit #WPC 77- 8. API Number 50— N/A 9. Unit or Lease Name 10. Well Number 11. Field and Pool N/A N/A N/A 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 ❑ Pull Tubing �I Other X 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). ARCO Alaska, Inc., proposes to replace the following equipment in this disposal well: 1. Rig up crane to pull tubing.. 2. Circulate out the glycol in the well and kill the well with brine. 3. Remove the wellhead and install BOPs. 4. Pull 1-1/411 tubing and pull 2-3/8" tubing. 5. Fish for p--rted 2-3/8" tubing. 6. Run in new 2-3/8" tubing and sealing assembly. 7. Rerun 1-1/4" tubing (used for freeze protection). 8. Remove BOPS and install new wellhead. Estimated Start: November 7, 1984 Alaska Oil & Gas CONS. Commission Anchorage 14. 1 hereby certify that the f going is true and correct to the best of my knowledge. Title Area Drilling Engineer Signed The space below for Commission use Conditions of Approval, if any: Approved by. Form 10-403 rsev. /-I ov GRU1 /$'N78 Approved Copy eturned By Order of COMMISSIONER the Commission Date Date Submit "Intentions" in Triplicate and "Subsequent Reports" in Duplicate • TO: f Hoyle H. Hamilton Chairman Thru: Lonnie C. Smith Commissioner A 1�@ r1i INVOY ?//I S�J1111817 CL AND GAS CONSERVATION COMMISSION DATE: May 28, 1981 FILE NO: TELEPHONE NO: FROM: Ben LeNorman SUBJECT Inspect Arco's Oily Petroleum Inspector Waste Injection Pad #3 Prudhoe Bay Unit. Friday, May 15, 1981: I departed my home at 2:00 PM for a 2:30 PM showup and and 3:30 PM departure via the Sohio charter for Deadhorse arriving at 5:00 PM . Weather: +18 °F, light wind, high overcast. Saturday, May 16, 1981: B .O. P.E . test on Sohio's N-12 com- pleted,, the subject. of . a separate report. Sunday, May 17, 1981: Witness inspection of Sohio's strainers at Pump Station #1, the subject of a separate report. B.O.P.E. test on Sohio's G-9 completed, the subject of a separate report. Monday, May+ 18, 1981: Retested low pilots and SSSV's on Arco drill sites #2, 3, and 9, the subject of a separate report. Accompanied by Marvin Maye, second line supervisor at Flow Station #3, I toured Arco's oily waste injection Pad #3 adjacent to drill site #6 (photo #1) . The injection facilities (photo #2) are operated by Veco under contract to Arco. Mr. Maye explained that incoming waste= is first run over a shale shaker to remove solids and then routed to two heated holding tanks (photo #3) . Gardener -Denver triplex injection pumps (photo #4) are utilized to pump into the two injection wells (photo #6) located in well houses (photo #5) just behind the injection facility. A schematic of the two injection wells is attached. Mr. Maye explained further that all North Slope companies utilize these facilities. The two type wastes not allowed for injection are sewage and unneutralized acids. Tuesday, May_ 19, 1981: B .O. P.E . test on Sohio's H-14 completed, the subject of a separate report. - Wednesday, May 20,1981: I departed Deadhorse via Wien flight #76 at 1:30 PM arriving in Anchorage at 3:10 PM and at my home at 3:40 PM. In summary, I inspected Arco's oily waste injection Pad #3. ARCO Alaska, Inc. Post Office 141111360 Anchorage, Alaska 99510 Telephone 907 277 5637 May 27, 1981 Mr. Blair Wondzell State of Alaska Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 Subject: Oily Waste Disposal Well - AFE 293679 (NE Thaw Well) Dear Sir: The following is the data you requested on the above well. Drilled to: 2250' Casing: 13-3/8" conductor 52" casing set @ 2214' (52" 17# Mod N-80 Buttress) Cement: Cemented w/4560 sx Permafrost II + 250 sx_ top job Logs: 4 -Arm caliper & DIL logs Rig released 6/17/73 Workover: 2/26/78 - 3/8/78 Perforated: 3/4/78 - 2087' to 2107' w/4 spf Completion run: 3/4/78 - 3/6/78 Top Baker DB packer - 1940' Locator sub - 1938' XO - 1937.5 67 jts 2-3/8" cs Hydril Tubing - to surface 60 j is 1 4" tubing - to 1919' cated) (cs Hydril, no wt or grade indi- Weld released to Production 3/7/78. Sincerely, `� J"Oev �-� K. J. Grimes Associate Engineer KJG:sp ARCO Alaska, Inc. is a Subsidiary of Atlantic Richfield Company RECEIVED Alas SAY 2 8 .�981 � QiI & Gas Bch° age Ccmmissien 4QLV Gry-/ �-" Q .Y 7 (0 �to f / Or Lcra •Ltt ( ! d *t Tn3 a � F �•2.c �`i�v Thr��r l�� Al ,41 / i C-14-ACIQ -rc. Cb o s S o �i o J viepnone yv. .r . +,•' August 3, 1977 Mr. 3 im Dorn Alaska Department of Environmental Conservation Pouch 0 Juneau, Alaska 99811 Dear 1.1r. Dorn; Pursuant to our conversation of the supplemental information you applications to inject fluids in located at Prudhoe Bay,.Alaska. transmitted to the Department of of Oil and Gas (DOG) . July 22, 1977, I am enclosing requested in support of our three disposal wells This material has been Natural Resources, Division The waste materials which are injected at the Pad #3 Facility (Oily Waste Injection Pad) consist of: wa-ste oils from well cleanup (a mixture of diesel, crude oil, calcium chloride solutions, contaminated with materials such as drilling mud); contaminated glycol solutions, which cannot be regen- erated; waste oil-based drilling muds; -oil -water mixtures from oil spill cleanup efforts; and other miscellaneous oily materials. We currently inject into the "Northwest Thaw Well". As our injection facility is currently being upgraded, additional injection capabilty will be available with the "Northeast Thaw Well". An application covering the later well will be submitted once our plans are finalized. These straight wells are about 32 feet apart and consist of a single string of 5h" casing cemented throughout the perma- frost zone with a special low temperature cement. Cementing the casing in this manner prevents vertical migration of injected fluids once they exit the perforated interval. Attachment l is the daily drilling history of the "Northwest Thaw Well". This shows the drilling and cementing operations. Attachments 2 and 3 are correspondence with Mr.. Tom Marshall, Division of Oil and Gas, which may be helpful. This corres- pondence discusses the well structure, the water formation, and the DOG approval to inject. Attachment 4 is a dual induction log showing the bottom of the permafrost zone and the upper levels of the saltwater formation. No'water samples were taken directly from this we.-L.L. Because this ,L Nlov 0 jg86 Atask� �i1 GasrCnnsf COMM' too M r- Page 2 0 f saltwater rock J throughout the other wells in in this well. mitred with our M Xormation is large, thick and continuous enti.e Prudhoe Bay field, water samples from this formation are representative of waters Water samples from otrer wells were trans - original application. Attachments 5 and 6 are packages of material describing the two water. injection wells, PWDW 1-1 and PWDW 2-1. These attachments show that these wells are nearly identical in construction and consist of a 20" conductor casing, a 13- 3/8" intermediate casing thru the permafrost zone, and 9- 5/8" casing to the injection horizon. All casing strings are cemented in place to preclude any vertical migration of injected waste water. Attachments 7 and 8 are well logs from PWDW Well 1-1 and Well 2-1. From these logs, water salinity can be estimated. As of July 31,.no water had been disposed into PWDW 1-1 or 2-1. To date, water produced with the oil from _the field has been minimal and has not yet required the commissioning of these wells. However, these -two wells are currently operational and will be placed in service shortly. Produced formation water is measured at each oil producing well and is not directly metered at the two water disposal wells. Waste oily fluids are accumulated in tanks at the Pad :3 facility and Injected into the oily waste well on an intermittent basis. Waste materials are logged as they are brought t6 the facility; but because of the nature of the materials, they are not directly metered as -:they are injected into the well. I hope this information will satisify your needs, please call. me if you have any questions. ery truly yours, . Metz Senior Environmental Engineer Attachments WPM: ew cc: Stan Hungerford - ADEC, Junea- - w/o attachments R. G. Hansen - ADEC, Juneau - w/o attachments Tom Marshal - DOG, Anchorage - w/o attachments • 1 J November 10, 1975 • xr. iom Marshall State of Alaska ' Division. of Oil & Gas _ 3001 Porcupine Drive • • Anchorage, Alasl a 99501 Dear Y=. Marshall: • • • Th1s letter will coafir our telepnone conversation_ of • 2"cvenber 73, 1975, in• L=aich you gave Atl2ntic Pdchf-i eld • *Company verbal authority to inject oily waste into a ' ' thaw subsidence test u211• in Section 11, Towashi.p 10 -.' 24orth, Ra=oe 14 East. Your verbal autnority was grzated. • with the proviso that there were no fresh water sands in. the gross interval of the injection_ .'• Atl•zati c Richfield Coepaay drilled five wells on. BP • Central Tad 3 in 1973 for a thaw subsideace test_ The ' location was selected on a BD lease for various reasons - which are identified in our Thaw Subsideace Report pre- • • sented to you on June 17, 1975. BP has been ' i-aform=d • of our intention to inject oily u-aste at the that: subsidence test site and has no objection_ The casing '- ` program for these wells included 13-3j8" 72Y X-80 Buttress ' at about 100' demented to surface and 5-112" 172 1;-80 Buttress set at about 2250' and cemented to surface.* Ther exposed section below the base of the: permafrost 'fro= about 1850' to, total..depth consists of s 1t�-, sandy- • shale. It is our intention to perforate about 30' as row as possible and pump in at frac pressure. to dispose ' -of the oily waste material. • • •• Regarding your proviso, all available data indicates fresh water does not exist in formations below base of •permafrost in the area. Two methods were used to .. • determine the salinity of water in the formation belo•.a the- base of permafrost. • These include electric log • - calculations from the thaw subsidence test wells and a ' • review of core data taken from the interval at the base of per,afrost in BP Alaska's well 12-10-14 adjacent to the thaw subsidence test area. the loo calculations from the that) subsidence dells at 21001 indicate a •salinity of 15,OW ppm NaCl while cores at base of • _ perrna�rost in the BP Well 12-10-14 had :tater salinity of 15,000-20,000 ppm NaCl. RECErvL . Nov 0 51986 • .- I: e- c.•il •' I b .r.. �n rope ��` h2?Py to Sit c�a•• , be our c -- s.�:ou•r� •� jj-�h -� ou the t _ Sou des,-, S• to revle,. SS • e -z. cz%e �25cu ,0 2bou. 'o -� °u r.�y co, - I "se sh •,� opera-•r r+ z, •�20. Je. �. �-.d ft •Lwa •. D t: u .�o Yours r - e-7 op � t • Opera T Aa Q e ' • 46 i kECEIVED • ( JU 0 5.1989 Alaska Region Post Office )x 360 Anchorage`,�-aska 99510 Telephone 907 277 5637 August 22, 1977 -F,le; NE16.,w wp11 PVVII I et Mr. Woodruff Angst Permit Coordinator Department of Environmental Conservation Pouch 0 Juneau, Alaska 99811 Dear Mr. Angst; Enclosed is a permit application to discharge waste fluids by injection into the Northeast Thaw Well into the sand formation under the Pad #3 Facility, Prudhoe Bray .Field, Alaska. The completed application form is accompanied by an Exhibit page. Also enclosed is a daily well history describ- ing the drilling of this well, and a dual induction log of the well. Formation water characteristics and waste fluid types were submitted in my correspondence to the Department dated June 6, 1977 and August 3, 1977. Our current plans are to utilize the Northeast Thaw Well as our prime injection well at the Pad #3 Facility. The Northwest Thaw Well will serve as a backup injection well. These wells are about 32 feet apart and are es=sent- ially identical in construction. If you do need additional information, please feel free to call me (907) 265-6533. tru yours W P. Metz Senior Environmental Engineer Enclosures WPM:ew cc: Doug Lowery - ADEC, Fairbanks,- w/o attachments Tom Marshall - DOG, Anchorage - w/o attachments REC[I'i.:D SEP 14 1977 Division of Oil an, Cas Coraservatfoal Anchorat,in TE W N WELL .0 OILY WAS D ISP OSL ELL E Current Configuration COMPLETION: ALL DEPTHS ARE RKB 3/7/78 - PERFORATIONS COMPLEfEO AND TUBING STRINGS RUN Collapsed tubing at ±28' -3/8 2 100' 2S8 SX CEMENT -1/4" HfDRIL FLUSH JOINT IRCULATING STRING 8 1919' 2-3/a HYORIL C.S. CUBING ,• X 2-3/8" 4'0 " PACKER 8 1940 2112' 2" 8 2214' W/ SX CEMENT Well is loaded with kill wt. fluid pending plugging and abandonment. rt»«oo 'W20 tn: YA-!P1' PAD • f C 2 •f10N,R14& El hI.' 1 _ T6 11 R 36A 4 } 9h_ oy +�1 MCofION d2 -t0 -t4 011x t29i0-�-} s -- �e.�, PAS ; . fir. 1 � ? x X7:4 W Row urrr � Ifig � G • J 11G 4. Cale : t M = 2001 712' dq LSU t%t� D LeCcAb n 93S' O • Aep• 4-rA ECJ WCJ. IIO N ®= s- t-06A-rIO>v we- Its .der x 0.0 s Ce,7 Lepoo m. r DES. W w �►�+�� 4.4 11.10-14, 02-10-144 12-10-14S SHEET Now.. AND 01.10.1 f CHK. h"I .1� DA� ��� ,+;ie`. � �� A I ��� a Inc. SjFidiar of Atlantic Aic"4+eid torn• .-n NOR7h SLOPE •.3R1L L HCl: CAY :•*3--PRUD r �..a rir�aaauwwrw - T 1 cc ��m V LL. Z 00 2o O — Q m N W J N = W cr N N 0 0Ct: 3 3 Q cr ac O o cr.rr. z o 2 Z 7 0 Z W O O O 7- O (D w 0 0 -j in O W N W to W M W M D o M vX—i a—i LL 3 H n A e-% f -IN Ick ri_ Q 2 H 0 crw Q w 0- w J 0 w Q w CL 2 w 71071 w U z W Q U) CD U) O w W Q J ` a- V Q 2 H 0 crw Q w 0- w J 0 w Q w CL 2 w 71071 w U z W Q U) CD U) APPENDIX I - PRIMI: AY FIVE SPOT TIIAIV SUBSIDENCL ' T 1. Test Program The 5 -spot thaw subsidence test holes were drilled and the heating 1 and monitoring equipment was installed during June and July of 1973. A 22 month thaw period will be completed in June 1975. The test E f utilized five 2200' cased holes in a closely spaced 5 -spot pattern to produce a thaw of approximately 35' radius which represents approximately 1 15 ears of production from a Prudhoe Ba Field mid -structure oil well. Y P Y � The test was designed to obtain the maximum data and provide sufficient ;! time for well completions prior to field startup. i The test was located near the center of the field on BP's Central Pad 3 in Section 11, T1.0N, R14E. Since this was also�the site of ij ' BP's extensive permafrost coring program, the core data could aaso �! be used in the subsidence test evaluation. Figure I-1 i.s a map of the test site showing the arrangement of the five thaw wells and the placement of the temperature and subsidence monitoring holes. figures I-2 through I-5 are sketches of thaw wells, the subsidence monitoring rod wells, the subsidence monitoring wire wells, andthe temperature monitoring wells. (; • p 2. Test Results'`'; The 5 -spot thaw pattern was analyzed with an X -Y two dimensional it ! thaw simulation model. The progress of thaw at the 1000' level f i• is shown in figures 1:-6 through I-10 at five different stages of. • !' i; thaw. The equivalent single well thaw radius for the 5 -spot:, pattern versus depth is shown in figure I-11. Until the later istages of the test where the five patterns have merged into one, the equivalent single well thaw radius should be used with caution. Z_l ��
