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RECEIVED • •STATE OF ALASKA Nov 2016 ALASKA OIL AND GAS CONSERVATION COMMISSION ectip WELL COMPLETION OR RECOMPLETION REPORT A IA la.Well Status: Oil 11 Gas El SPLUG El Other El Abandoned * Suspended El lb.Well Class: 20AAC 25.105 20AAC 25.110 Development R Exploratory C] GINJ El WINJ ❑ WAGE] WDSPL ❑ No.of Completions: Service E] Stratigraphic Test El 2.Operator Name: 6.Date Comp.,Susp.,or 14. Permit to Drill Number/ Sundry: Bureau of Land Management Aband.: 8/25/2016 100-024 3.Address: 7. Date Spudded: 15.API Number: 222 W.7th Ave.#13,Anchorage,AK 99513 12/18/1948 50-023-10010-00-00 4a.Location of Well(Governmental Section): 8. Date TD Reached: 16.Well Name and Number: Surface: Sec 14,T 22N, R 18W, UM 1000'FNL,600'FWL 4/15/1949 S Barrow,PTest#2 (DD NAD83)71.2622 N,-156.6342 W 9.Ref Elevations: KB: 11' 17. Field/Pool(s): Top of Productive Interval: "7C, 24,Z4.,/ /rw, (✓se'73I GL: BF: Barrow Gas Field Total Depth: A(46 .2-7 10. Plug Back Depth MD/TVD: 18. Property Designation: ve-r1 Lk' 1 (..k.).e_l( Al sit.iC 0,,gr, Surface 4b.Location of Well(State Base Plane Coordinates,NAD 27): 11.Total Depth MD/TVD: 19. Land Use Permit: C, Surface: x- l /0 y- 3(3 IA.-2_ Zone-4 2504' TPI: x- y- �D Zone- 12.SSSV Depth MD/TVD: 20.Thickness of Permafrost MD/TVD: Total Depth: x- y- ./T /[,C�,4; Zone- 5. Directional or Inclination Survey: Yes attached) No 13.Water Depth,if Offshore: 21. Re-drill/Lateral Top Window MD/TVD: Submit electronic and printed information per 20 AAC 25.050 (ft MSL) 22.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 ; ala MAR ' 6 2:017, CBL Log date 08-17-2016 23. CASING,LINER AND CEMENTING RECORD °°I. SETTING DEPTH MD SETTING DEPTH TVD AMOUNT CASING PER GRADE TOP BOTTOM TOP BOTTOM HOLE SIZE CEMENTING RECORD PULLED FT Conductor 42 0 69' 0 69' 16" 47 sx OOA to surface Surface 47 J-55 0 960' 0 960' 11 3/4" 130 sx OA to surface Intermediate 28 J-55 0 2260' 0 2260' 7" 47.5 sx IA Liner 17 J-55 2224 2504' 2224' 2504' 5 1/2" 24.Open to production or injection? Yes El No Q 25.TUBING RECORD If Yes,list each interval open(MD/TVD of Top and Bottom;Perforation Size SIZE DEPTH SET(MD) PACKER SET(MD/TVD) and Number): 26.ACID, FRACTURE,CEMENT SQUEEZE, ETC. Was hydraulic fracturing used during completion? Yes 0 No El V ZSf! Per 20 AAC 25.283(i)(2)attach electronic and printed information DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED LC- 27. L27. PRODUCTION TEST Date First Production: Method of Operation(Flowing,gas lift,etc.): Date of Test: Hours Tested: Production for Oil-Bbl: Gas-MCF: Water-Bbl: Choke Size: Gas-Oil Ratio: Test Period Flow Tubing Casing Press: Calculated Oil-Bbl: Gas-MCF: Water-Bbl: Oil Gravity-API (corr): Press. 24-Hour Rate .- Form 10-407 Revised 11/2015 54.- CONTINUED ON PAGE 2 RBDMS Lc_ 7/-/7-74,.. ��►'l( � NOV�� 1 6 2016 Submit ORIGINIAL onl /tl� r/. 74,/A va 28.CORE DATA Conventional Core(s�: Yes El No El Sidewall Cores: Y!� ❑ No ❑ If Yes,list formations and intervals cored(MD/TVD, From/To),and summarize lithology and presence of oil,gas or water(submit separate pages with this form, if needed).Submit detailed descriptions,core chips,photographs,and all subsequent laboratory analytical results per 20 AAC 25.071. 29. GEOLOGIC MARKERS (List all formations and markers encountered): 30. FORMATION TESTS NAME MD TVD Well tested? Yes ❑ No ❑ Permafrost-Top If yes,list intervals and formations tested,briefly summarizing test results. Permafrost-Base Attach separate pages to this form,if needed,and submit detailed test Top of Productive Interval information,including reports,per 20 AAC 25.071. Formation at total depth: 31. List of Attachments: 3160-5;Olgoonik Executive Operations Summary; Photographic Report;Wellbore Schematic; Detailed Daily Operation Report;CBL Log 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. 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Email: Printed Name: Voq N e-�+s Title: 45./ I C't e' y `� J ,P1. Signature:—� Y � Phone: 27/—9<to 7 Date: /o//7 INSTRUCTIONS General: This form and the required attachments provide a complete and concise record for each well drilled 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 Disposal,Water Supply for Injection, Observation,or Other. Item 4b: TPI(Top of Producing Interval). Item 9: The Kelly Bushing,Ground Level,and Base Flange 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 measured depth and true vertical thickness of permafrost. 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. Pursuant to 20 AAC 25.071,submit detailed descriptions,core chips,photographs,and all subsequent laboratory analytical results,including,but not limited to:porosity, permeability,fluid saturation,fluid composition,fluid fluorescence,vitrinite reflectance,geochemical,or paleontology. 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. Form 10-407 Revised 11/2015 Submit ORIGINAL Only • AOGCC S BARROW TEST 2 16 November 2016 INPUT OUTPUT Geographic,NAD83 Geographic,NAD27 Accuracies of conversions from NAD 83 to NAD 27 are typically 12 to 18 cm. S BARROW TEST 2 1/1 Latitude: 71.2622 Latitude: 71.262616200 Longitude: 156.6342 Longitude: 156.630730800 Datum Shift(m.): Delta Lat.=46.439,Delta Lon=-124.431 Remark: Coordinate source:BLM Well Completion Report received 11/15/2016 Corpscon v6.0.1,U.S.Army Corps of Engineers • • AOGCC S BARROW TEST 2 16 November 2016 INPUT OUTPUT Geographic,NAD83 State Plane,NAD27 5006-Alaska 6,U.S.Feet Accuracies of conversions from NAD 83 to NAD 27 are typically 12 to 18 cm. S BARROW TEST 2 1/1 Latitude: 71.2622 N orthing/Y: 6313451.994 Longitude: 156.6342 Easting/X: 661106.192 Convergence: 1 17 48.20881 Scale Factor: 0.999929480 Datum Shift(m.): Delta Lat.=46.439,Delta Lon=-124.431 Remark: Coordinate source:BLM Well Completion Report received 11/15/2016 Corpscon v6.0.1,U.S.Army Corps of Engineers • • 596 EXPLORATION OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, 1944-53 upper part of the test well to 8,883 feet per second at Lachenbruch, U.S. Geological Survey, obtained a curve the base. Vertical velocity through the siliceous rock almost identical with the profile from South Barrow penetrated at the base of the test was computed at test well 3. 17,500-19,500 feet per second. The inverse geothermal gradient at South Barrow There was no evidence of unusually high velocities, test well 1 is approximately 80 feet per degree centi- indicative of permanently frozen strata,which had been grade. This gradient is lower than those found in other noted in some test wells in the Reserve, but ice formed permafrost areas in Alaska such as inland from Barrow, in the hole as deep as 615 feet,indicating the presence of Cape Simpson, Umiat, Fairbanks, and Glennallen, but permafrost to that depth in the vicinity. is to be expected as a result of the influence of the nearby bodies of water on the temperatures at depth TEMPERATURE-MEASUREMENT STUDIES, in this well. SOUTH BARROW TEST WELL 2 SOUTH BARROW TEST WELL 1 Location:Lat 71°15'49" N., long 156°38'03" W. By MAX C. BREWER Elevation: Ground, 23.5 feet;kelly bushing, 34.5 feet. Spudded: December 18, 1948. South Barrow test well 1 is on the landward side of Completed: April 15, 1949. Gas well; junked and abandoned. the present beach ridge, about 400 feet from the edge of Total depth: 2,505 feet. the Arctic Ocean and just west of Barrow Camp. It South Barrow test well 2 was the first hole in the was completed at a depth of somewhat more than 3,550 Reserve to produce a useful quantity of gas. Oil heaters feet in February 1949. Two cables manufactured by at Barrow camp, 5 miles to the north,were converted to Humble Oil Co.and containing copper-wound resistance gas, and the well supplied enough fuel to heat the camp. coil thermal elements were installed to a maximum The location of the test was based on seismic surveys depth of 500 feet by Arctic Contractors under the super- which outlined a small area where a structural trap was vision of Mr. William C. Fackler, Jr., geologist for Arc- formed by faults on the southwest and east sides of a tic Contractors. Frequent readings were made on these block of sediments that dip northwest. cables from the time of installation until 1953. The hole penetrated about 70 feet of marine Pleisto- The geothermal profile for the well on January 10, Gene sediments (Gubik formation, 11-80 ft) and then 1952, which closely approximates the predrilling equi entered Cretaceous beds. The Topagoruk formation, Librium geothermal profile, is shown as figure 51. A the youngest Cretaceous unit found here, is dominantly shale and had no shows of oil or gas. It is present from short extrapolation of the profile indicates a probable 7) depth of permafrost (0°C isotherm) of 670 feet, approx- 80 to 1,730 feet and is underlain by 200 feet of the imately one-half the depth indicated at South Barrow Oumalik formation (1,730-1,930 ft). (See pl. 42.) °. test well 3, 8 miles inland. The temperatures shown are Below the dark shale of the Oumalik and Topagoruk also considerably higher than those from comparable formations, a 400-foot section of pebble shale is present from 1,930-2,328 feet. depths at wells farther inland. These anomalous tern- Below 2,328 feet, the well penetrated more than 100 perature results are readily traceable to the nearness of feet of light-olive-gray sandstone and siltstone of Middle the ocean and a brackish lagoon lying between the well Jurassic age which had an odor of oil and showed a light and the nearby camp. After computing and subtract- oil stain. Between 2,443 feet and the bottom of the ing the influence of these bodies of water on subsurface hole at 2,505 feet, bluish-black siliceous or carbonaceous temperatures at South Barrow test well 1, Arthur H. argillite constituted the oldest rocks drilled. (>'1( • 0 570 EXPLORATION OF NAVAL PETROLEUM RESERVE NO, 4, ALASKA, 1944-53 168• 164• 160• 156° 152• 148° EX PLA NAT IONPoint Barrow I C Bare ,-ti Admiralty 0 c T . Bay # d Ges well It C' 7 {/•- SIMPSON OIL FIEL N 6 Abandoned well - E+° Tu • k eay 9i i a 7 - Ati aru jirlfiii 70° Dry hole TESNEKPUK LAKEL4 n.ktN i' "SECTION � TD. (//A R C T C' C 0 A T A Lir:10. Ino- t• `t AVAL PETROLEUM 'iso �•,R SERVE 1E NO 4 �I W BEC:41. NILLS �', est •.....�:•• •l J irt,•.' �• ' w` f00Tii1LLS 16 ,A 5 � 0117F1. 1 MIM OIL F/ELb 22 ay.4% SECTION N NORTHER .. .. F O O r R 4 xa C C.. RILL gz�..! VIN I C Riee,35OUTNERN r... ,..p FOOTHILLS IVii 11 °,,,�.w,,,>tirc .i SECTION,...• ' g �° BROOKS�•�r.�•a 'R A N lits,...' _ R 0 V, �. 164• o so IDE Igo IvMILEs 152• 1 SOUTH BARROW TEST WELL 1 ' 7 SIMPSON TEST WELL 1} 13 OUMALIK TEST WELL 1 19 WOLF CREEK TEST WELL S 2 SOUTH BARROW TEST WELL 2 5 TOPAGORUK TEST WELL 1 14 EAST OUMALIK TEST WELL 1 20 CURIE TEST WELL,1 3 SOUTH BARROW TEST WELL 3 S EAST TOPAGO RUE TEST WELL 1 15 SQUARE LAKE TEST WELL 1 21 CURIE TEST WELL 2 4 SOUTH BARROW TEST WELL 4 10 FISH CREEK TEST WELL I 16 TITALUK TEST WELL 1 22 KNIFEBLADE TEST WELL 1 B AYAK TEST WELL 1 11 KAOLAK TEST WELL I 17 WOLF CREEK TEST WELL 1 23 KNIFEBLADE TEST WELLS 2 AND 2A 6 NORTH SIMPSON TEST WELL I 12 MEADE TEST WELL 1 16 WOLF CREEK TEST WELL 2 24 GRANDSTAND TEST WELL I 25 UMIAT TEST WELLS I-11 FIGURE 49.—Index map of northern Alaska,showing location of test wells and oil fields. (see fig. 50), was drilled in 1949, and a second gas well, South Barrow test well 4, was put down as a standby as ,,40 hole close to South Barrow test well 2, in 1950, in order EXPLANATION , 2.r. , ?,,, to assure a reliable gas supply for the camp. The last hole drilled by Arctic Contractors in the Barrow area i. ` o c was Avak test well 1, drilled on the north side of an On.1, E �IN�•„°•,ANINNN,“.N. A area which gave no seismic reflections; the test revealed °` steeply dipping beds. South Barrow test well 5, T L PotB•„• Hew°N located between test wells 2 and 4, was drilled by the U.S. Air Force in 1955 (after the U.S. Navy had sus- ti '°�` °"''° pended its program in the Reserve) to replace South Barrow 2 which was destroyed by fire in April 1950. ANN. e. to ¢,�, 4"1 1 w"mPo"' All the wells penetrated Pleistocene and Cretaceous mu �$"�° .•. _ 3, beds, and the deeper holes were drilled into Jurassit R•==^• ¢� , :' �,°0. and pre-Mesozoic rocks. However, South Barrow tesc Aa well 3, drilled to 2,900 feet, was the only test to pene- �� V U5 w trate beds of Triassic age. The paragraphs on stratig- �C sa DIri -1A• . = raphy describe a composite section based on all the i e=_ -.:, 0, bad '.'`r..,..0 ,_ tests; no one hole penetrated a complete sequence. :$ E? ;(''��o )5 This report includes detailed geologic and engineering o°0.a m -bL1'S :,,` - �' �, =alert g� ,_uy�, o�: -,..,,:%-._ e data obtained by drilling the 10 holes, much of which >*'a_ ',--171S-. _ is shown graphically. Technical data used herein were 0. t_. �^0 4 tt ,- recorded by Arctic Contractors, the U.S. Geological {� fily -► Survey, as well as United Geophysical Co,, Inc,, which .__-_----_0...,541° madegeophysical surveys, and the Schlumberger Well '° IF k Surveying Corp., which made electric logs. Cretaceous and Jurassic megafossils recovered from the test wells FIGIIRE 50.—Index map of core tests and test wells drilledinthe vicinity of Point were studied byRalph W. Imlayand Arthur L. BOw- Barrow,Alaska P • • I Form 3160-5 UNITED STATES FORM APPROVED (June 2015) OMB No,1004-0137 DEPARTMENT OF THE INTERIOR Expires:January 31,2018 BUREAU OF LAND MANAGEMENT 5.Lease Serial No, SUNDRY NOTICES AND REPORTS ON WELLS 6,If Indian,Allottee or Tribe Name Do not use this form for proposals to drill or to re-enter an 1 abandoned well.Use Form 3160-3(APD)for such proposals, SUBMIT IN TRIPLICATE-Other instructions on page 2 T.If Unit of CA/Agreement,Name and/or No. I.'Type of Well E Oil Well E Gas Well ®Other 8.Well Name and No. South Barrow Core Test#2 2.Name of Operator Bureau of Land Management 9.API Well No 50-023-10010-00-00 3a,Address 222 W.7th Avenue,#13,Anchorage,Alaska 3b Phone No.(include area code) 10.Field and Pool or Exploratory Arra 99513 (907)271-4354 Barrow Gas Field 4 Location of Well(Footage,Sec.,7:,R.,M.,or Survey Description) I I.Country or Parish,State Sec 14,T 22N,R 18W,UM USA North Slope Borough,Alaska 12,CHECK THE APPROPRIATE BOXES)TO INDICATE NATURE OF NOTICE,REPORT OR OTHER DATA TYPE OF SUBMISSION TYPE OF ACTION t-t n Notice of Intent I 1 Acidize fl Deepen Ei Production(Start/Resume) Ej Water Shut-Off ❑�Alter Casing 0 Hydraulic Fracturing n Reclamation n Well Integrity nr Subsequent Report I 1 Casing Repair ❑New Construction 0 Recomplete El Other U Change Plans ©Plug and Abandon i l Temporarily Abandon ©Final Abandonment Notice 1--� I �Convert to Injection i J Plug Back 0 Water Disposal 13, Describe Proposed or Completed Operation:Clearly state all pertinent details,including estimated starting date of any proposed work and approximate duration thereof If the proposal is to deepen directionally or recomplete horizontally,give subsurface locations and measured and true vertical depths of all pertinent markers and zones.Attach the Bond under which the work will be perfonned or provide the Bond No.on file with BLM/BIA,Required subsequent reports must be filed within 30 days following completion of the involved operations.If the operation results in a multiple completion or recompletion in a new interval,a Form 3160-4 must be filed once testing has been completed.Final Abandonment Notices must be filed only after all requirements,including reclamation,have been completed and the operator has determined that the site is ready for final inspection,) Notice of Final Completion of Well Abandonment and Surface Remediation Activities: Plugging Operations began 8/10/2016 and were completed 8/25/2016.Please see attached reports for in depth details. The IA and the OA were both plugged with a cement plug to surface and tested to 500 psi compressive strength. The IA was cemented from 389'to surface(GL measurement). The OA was cemented from 179'to surface(GL measurement). The wellhead was cut off and marker plate welded on 3+'below ground level, No soil was removed from SB-#2 from around the wellhead and cellar and 5 cu yards of fresh clean fill were placed. 14,1 hereby certify that the foregoing is true and correct. Name(Printed/Typed) James O.Nunley Sr.Project Manager Title Z0 — Signature Date 09/14/2016 THE FOR FEDERAL OR STATE OFICE USE Approved by / e --- Title 211.4.1,-.4e-40.42 Date Conditionsproval,if.•• arc attache, •• royal of this notice does not warrant or '`T / O �.,r!e-e ' . certify tha ,pplicant holds legal or eq itab e title to those rights in the subject lease OfCe (G?Z F T'r which wou. -ntitte the applicant to cond. t. erations thereon. Title 18 U.S,C Section 1001 and Title 43 U.S.0 Section 1212,make it a crime for any person knowingly and willfully to make to any department or agency of the United States any false,fictitious or fraudulent statements or representations as to any matter within its jurisdiction. (Instructions on page 2) 0 • Olgoonik—Net Corporation Olgoonik Construction Services, LLC. 3201 'C'Street, Suite#700 Anchorage,Alaska 99503 September 14th, 2016 Bureau of Land Management(BLM) 222 West 7th Ave.#13 Anchorage,Alaska 99513 a RE: Sundry Notice(Permanent Abandonment) Well: South Barrow Core Test#2 TRS: T22N, R18W,Section 14, UM Dear Mrs. Hayes, Olgoonik Construction Services, LLC. hereby gives Final Abandonment Notice for a Sundry Approval to Permanently Abandon the SB#2 Gas Exploration Well. All work has been completed per the approved conditions of approval as of 8/26/2016. Pertinent information attached to this application includes the following: 1) Form 3160-5 Sundry Application 2) Executive Operations Summary 3) Photographic Report 4) Wellbore Schematic 5) Detailed Daily Operations Reports 6) CBL log dated 08-17-2016 The following is the OCS designated contact for reporting responsibilities to the BLM: James Nunley Senior Project Manager (907)232-9952 If you have any questions or require further information, please don't hesitate to contact me. Sinc ely, James Nunley Senior Project Manager • • GENERAL INSTRUCTIONS This form is designed for submitting proposals to perform certain well operations and reports of such operations when completed as indicated on Federal and Indian lands pursuant to applicable Federal law and regulations.Any necessary special instructions concerning the use of this form and the number of copies to be submitted,particularly with regard to local area or regional procedures and practices,are either shown below,will be issued by or may be obtained from the local Federal office. SPECIFIC INSTRUCTIONS Item 4-Locations on Federal or Indian land should be described in accordance with Federal requirements.Consult the local Federal office for specific instructions. Item 13:Proposals to abandon a well and subsequent reports of abandonment should include such special information as is required by the local Federal office. In addition,such proposals and reports should include reasons for the abandonment;data on any former or present productive zones or other zones with present significant fluid contents not sealed off by cement or otherwise;depths(top and bottom)and method of placement of cement plugs;mud or other material placed below,between and above plugs;amount,size,method of parting of any casing,liner or tubing pulled and the depth to the top of any tubing left in the hole;method of closing top of well and date well site condi- tioned for final inspection looking for approval of the abandonment. If the proposal will involve hydraulic fracturing operations,you must comply with 43 CFR 3162.3-3,including providing information about the protection of usable water. Operators should provide the best available information about all formations containing water and their depths. This information could include data and interpretation of resis- tivity logs run on nearby wells. Information may also be obtained from state or tribal regulatory agencies and from local BLM offices. NOTICES The privacy Act of 1974 and the regulation in 43 CFR 2.48(d)provide that you be furnished the following information in connection with information required by this application. AUTHORITY:30 U.S.C. 181 et seq.,351 et seq.,25 U.S.C.396;43 CFR 3160. PRINCIPAL PURPOSE:The information is used to:(1)Evaluate,when appropriate,approve applications,and report completion of subsequent well operations,on a Federal or Indian lease;and(2)document for administrative use,information for the management, disposal and use of National Resource lands and resources,such as:(a)evaluating the equipment and procedures to be used during a proposed subsequent well operation and reviewing the completed well operations for compliance with the approved plan;(b)requesting and granting approval to perform those actions covered by 43 CFR 3162.3-2,3162.3-3,and 3162.3-4;(c)reporting the beginning or resumption of production,as required by 43 CFR 3162.4-1(c)and(d)analyzing future applications to drill or modify operations in light of data obtained and methods used. ROUTINE USES:Information from the record and/or the record will be transferred to appropriate Federal,State,local or foreign agencies,when relevant to civil,criminal or regulatory investigations or prosecutions in connection with congressional inquiries or to consumer reporting agencies to facilitate collection of debts owed the Government. EFFECT OF NOT PROVIDING THE INFORMATION:Filing of this notice and report and disclosure of the information is mandatory for those subsequent well operations specified in 43 CFR 3162.3-2,3162.3-3,3162.3-4. The Paperwork Reduction Act of 1995 requires us to inform you that: The BLM collects this information to evaluate proposed and/or completed subsequent well operations on Federal or Indian oil and gas leases. Response to this request is mandatory. The BLM would like you to know that you do not have to respond to this or any other Federal agency-sponsored information collection unless it displays a currently valid OMB control number. BURDEN HOURS STATEMENT:Public reporting burden for this form is estimated to average 8 hours per response,including the time for reviewing instructions,gathering and maintaining data,and completing and reviewing the form.Direct comments regarding the burden estimate or any other aspect ofthis form to U.S.Department ofthe Interior,Bureau ofLand Management(1004-0137),Bureau Information Collection Clearance Officer(WO-630), 1849 C St.,N.W.,Mail Stop 401 LS,Washington,D.C.20240 (Form 3160-5,page 2) From: James Nuniey Date: September 14', 2016 Olgoonik RE: South Barrow Core Test #2 Executive Summary Corporation Well Background South Barrow Core Test#2 was a Point Barrow, North Slope legacy well that was drilled in 1949.This well produced up to 500M cfpd at 1,020 psi at its'high point. The well caught fire on April 15th, 1950 and was abandoned. The object of this well was to test a structural trap formed by faults in the Barrow Arch. This wellbore was not properly plugged prior to OCS plugging operations. Formations of note while drilling this well were,the Gubik,Grandstand, and Topaguruk. Fair to good gas shows were observed Pebble shale unit and Barrow sands.No usable surface or subsurface water were noted. Prior to the plugging operations the well had present a 16",60#conductor set at -69' MD,a surface casing string is 11-3/4"set at -960'MD,a 7"casing long string was set at 2,260'MD,and 280' of 5-1/2" liner set at 2,505'MD. There was a wellhead associated with this well that was capped with a damaged 4" Hughes master valve. No tubing was recorded in the hole.An impression block was run and noted collapsed 7"casing at 585' MD. This would indicate the 11-3/4"casing string is also collapsed. This well was abandoned with the original drilling mud(12.0 ppg)left in the wellbore and on the backside.A thermistor cable was located inside of the 7"casing ran to surface, but the length is unknown. Operations Summary: OCS began the rig up on location on 08/10/2016. This was to be a summer time operation meaning there was no snow pack and/or ice pack to use for the base of location.The use of 20'timbers and'Canadian Mat'design rig mats were used in combination with enviro-mats to build the base of location above the tundra and ponds surrounding the wellhead.All well work equipment was spotted into place to include a cement&pumping unit,steam boiler,fresh water conex,3 closed loop system pits,and a crane. The 1949 wellhead was dressed and fabricated to allow safety control and closed loop fluid containment for the plugging operations.The thermistor cable that was hanging in the well tree was observed to be severed at the ice level and could not be recovered nor pulled in tension for the operations. Upon final testing of the casing,wellhead,and BOPE it was found that there was a severe leak from the IA to the OA. Without commencing with irreversible deconstruction of the wellhead,the 1949 Shafer wellhead allowed for no further diagnostics to be ran to locate the leak. At the time it was noted to be from either the wellhead or a 7"casing leak from 0 to 7'below ground level. Operations on 8/23/2016 revealed that the 7"casing indeed did have numerous corrosion holes as far down as could be observed(-12')in every direction of the casing. Blow Out Prevention Equipment(BOPE)were rigged up and tested,then a work table/floor was constructed on and above the wellhead. Thawing operations inside of the IA began on 8/14/2016 and continued to a depth of 200'below ground level. A temporary pause in operations was placed to discuss forward options and plans given the change in well condition (communication from IA to OA). Diagnostic work commenced on 8/15/2016 to include excavating under Shafer wellhead to determine if any other valving or wellhead components existed. None were observed.The wellhead was determined to be as expected pre job.The well was thawed out to a depth of 384'below ground level in preparation for a Cement Bond Log(CBL) to be ran. A CBL was ran to a depth of 200'after having issues conveying E-line tools in and out of the 7"casing. A second pass was attempted under pressure; however the CBL tools could not be lowered beyond ground level. E-line operations were stopped and fishing operations began to recover what was thought to be the loose thermistor cable balled up under the wellhead.Operations were paused to consider all options forward.On 8/19/2016 an incident with the crane required re- inspection,and operations were suspended until the crane passed inspection. Fishing operations were successful commenced on 8/22/2016 recovering an estimated 125ft of thermistor cable from the well. A 50'cement plug was laid from 334'-389' below ground level to ensure competent barriers prior to rigging down the BOPE.The work platform and BOPE were rigged down and the wellhead deconstructed as was the only way to gain access to both annuli from above to run pipe. A 3/4" workstring was ran inside of the OA,then the 1"workstring ran inside of the IA.Both strings were rigged up and a continuous cement job was pumped first to the OA,then to the IA bringing cement to surface.A tested plug was placed in the IA from 389'to surface and 179'to surface in the OA.The remaining wellhead and stub of 11-3/4"casing were cut off and capped with an API marker plate 3+'below ground level. The surface equipment was rigged down and removed from location,then the matting boards and supports removed. The well cellar area was back filled with fresh fill and all surface debris were cleaned from location. Si erely, James Nunley Senior Project Manager • • Olgoonik „lies Construction Well Photo Report Services LLc Well Name&Number: South Barrow Core Test#2 I API Well Number: 50-023-10010-00-00 Field: Barrow Gas Field N ig ,- , X s 4,--- * ti ,s. Surface prior to mobilization activities Cement to surface after wellhead cutoff 07/29/2016 8/25/2016 ,, , ..490.111.111.6 .1r.,1 41,lu tft `; �l fx_ J \- _” " 'M"`'' ' 4 r s 41. Well marker plate Surface photo after abandonment activities 8/25/2016 8/26/2016 • • Olgoonik South Barrow Core Test #2 ---014164 Construction Final Plug and Abandonment Services Lic Completion Schematic 11' MD/TVD Original Ground Lever All Strings Cut off 3+' below ground level tit,: 11-%" Marking Plate welded on with 1/8" weep hole 7" Casing Collapse @ 19.5' MD >50 deformation noted 08/23/2016 Conductor Casing 15-1/2" OH to 69' MD/TVD4111 �, 16",60#,69' MD/ND *casing driven in after steaming OH Cemented with 47 sx construction grade cmt st c P&A Cement Plug-8/24/2016 3/4"workstring cemented in place 190'MD/TVD — ;..t Cement circulated up OA & IA(dual work strings) OA: 190' MD—Ground Level i;;%1 1 IA: 345' MD—Ground Level F i 30bbls total cement pumped(returns taken to surface) 1"workstring cemented in place 349'MD/TVD 150 sx Class'C'Artic Grade cmt 1.057 ft3/sk yield,14.8 ppg P&A Cement Plug-8/22/2016 Cement circulated up IA(1"work string) 7" Casing Collapse @ 565' MD IA: 345 400'MD f 1F G 3 bbls total cement pumped Noted on LIB ran 04/22/1950 i 16 sx Class'C'Artic Grade cmt 1.057 ft3/sk yield, 14.8 ppg Frozen drilling fluid/water left in wellbore below cement plug Surface Casing 11-3/4", 47#,J-55, 8rd CSG 13-1/2" OH to 960' MD/ND *assumed size to 960' MD/TVD Rg#2 casing Cemented with 130 sx construction grade cmt Production Casing Liner Top Packer set at 2,226' MD/TVD 7", 23#,1-55, 8rd CSG to 2,260' MD/ND Rg#2 casing Cemented with 47.5 sx construction grade cmt *well file indicates cmt did not fully cure Perforations: _ Production Liner 2,282' —2,402' (120') 5 1/2", 17#,J S5, LNR 2,473'—2,504' (31') From 2,224' to 2,504' MD/TVD ~ =' Rg#2 casing 9-7/8" OH f/2,260' MD/TVD t/2,504' MD/TVD (Not cemented) *assumed size Barrow Gas Field As Plugged Completion Schematic TD:2,505'MD/TVD Barrow,Alaska Olgoonik-Nes South Barrow Core Test #2 .,raven By (:onstruction PBTD: Surface API #42-023-10010 Olgoonik Services u.c 9/04/2016 Elevation KB: 11' RKB— GL: 11 ally Completion f Workover Rept WELL: South Barrow#2 01goonik Ags Report#1 I DATE: ,, 10-Aug-16 Rig Comp: RiQtess Jab Company Rep T F{ I r1a h sates RIG: NIA Construction AFE#: I RKB: I AREA:I Barrow.AK Services>_.LC AFE AMT: I • SUMMARY: Forecast: OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String_ 1.315 __ 0.96 2.17 Sched 80 10,890 1"NPT S-80 Type of Fluida ,,,IMW: . I. [Other: I - I FROM I TO I HRS I DESCRIPTION OF WORK PERFORMED_ Mobilize crane,mob water conex,RD boiler unit trailer and mob,mob cement unit.Move class II fluids to SB#2 for beneficial re- 8:00 AM 1:30 PM 5.50 use. Work with FMC wellhead technician of preparation of well head for nippling up. Break blanking plug from OA,prep the boss face for weld on nipple. Break and back out of thread IA blanking plug. Prepare boss face for weld. ND top flange for addition of weld on weldet flange(completed weld in shop). While top flange removed pull tension on thermistor cable in preparation to tack weld to inner casing and noted the thermistor cable was severed—7'below surface. 1:30 PM 4:30 PM 3.00 Prepared location with timbers and envioromats for rig mats tomorrow. Total Time: 8.5 Other Notes: . __ - . . . „_ _ .. _ ._ • •aily Completion /Workover Rept WELL: South Barrow.s2 01goonik Report H:1 2 DATE: j 11-Aug-16 Rigles Rig Comp: Rigless Job Company Rep Owl,H�,�r Zacm sMrn. RIG: N/A Construction AFE#: RKB: l AREA:l Barrow.AK Services ta.0 AFE AMT SUMMARY: Continue to NU wellhead,Prepare location,clean surface debris.NU flow cross. - Forecast: Complete NU of BOPE and choke manifold,Test casing,test BORE,MU flowlnes and circulation lines.MU work floor, mix 9 9 brine OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String_ 1.315 0.96 2.17 Sched 80 10,890 1 1"NPT S-80 Type of Fiuid:L. IMW'__--_�.......__... !Other: I - I FROM j TO I HRS J DESCRIPTION OF WORK PERFORMED Work with FMC wellhead technician of preparation of well head for nippling up. Break blanking plug from other side of the OA,prep the boss face for weld on nipple.NU 1502 nipples on both sides of the OA valves,NU 1502 nipple on the IA. FMC tech dress Top flange API ring slot. NU top flange. 7:00 AM 11:45 AM 4.75 SIMOPS:clean location of legacy surface contamination and debris. Lay Canadian mats across location. Spot open top tanks 1,2,&3. Spot Water conex in place.Spot cement unit. Spot boiler 11:45 AM 4:00 PM 4.25 trailer. 4:00 PM 6:00 PM 2.00 Pick Flow cross,NU flow cross to wellhead. Total Time: 11.0 Other Notes: ally Completion I Workover Re P• WELL: South Barrow#2 01gOOnik Report#:I 3 DATE: 112-Aug-16 Rig Comp: Rigle/ Job Company Rep rink He�.T.,r z�n sarem RIG: NA Construction i AFE#: RKB: I AREA:1 Barrow,AK Services l.t.G AFE AMT: SUMMARY: Complete NU of ROPE and choke manifold.Test casing,test BOPE,repair XO flange,MU circulation lines, mix 9 8 brine Forecast: Complete NU of and testing of BOPE and choke manifold,MU work floor, PU workstring. OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0.96 2.17 Sched 80 _ 10,890 - 1"NPT S-80 Type of Fluidtw.�___ _,.._ _ J.11101W: J Other: I . FROM ( To I HRS I DESCRIPTION OF WORK PERFORMED 7:00 AM 8:15 AM 1.25 ,Rig up surface lines and hardlines. Spot choke manifold and make up hardline to same. Rig up BOPE test pump. Discuss thermistor cable loose in wellbore. RU and tag ice depth to understand where cable was parted versus ice depth. Hard tag at 7'4"below base flange. Same depth as where the thermistor was parted,therefore there is no cable present to attempt to grab 8:15 AM 9:00 AM 0.75 above the ice level.Decision made to proceed with plan and steam with thermistor cable loose in wellbore. Continue egging up BOPE test equipment. Perform shell test on flow cross. XO flange custom made for this well leaking on primary and secondary weld. Make attempt to weld in place to dress the secondary weld.Attempt additional pressure test.No success,the weld is cooling too quickly. Drain the stack and make additional attempt to re-weld secondary seal in place. No success, Split the stack and remove the flow cross from the base flange piece. Inspect primary weld. Primary weld needs to be 9:00 AM 12:30 PM 3.50 dressed and re-welded.Call additional welder and wait till arrive on location. Additional welder arrive on location. Welder cannot properly dress base flange in place do to the flange bolts in the way 12:30 PM 1:30 PM 1.00 ND the base flange and mobilize to welder's shop. 1:30 PM 3:00 PM 1.50 Welder dress XO flange primary and secondary seals. Re-weld same. Retum to location. 3:00 PM 3:45 PM 0.75 NU re-welded XO flange. NU flow cross. 3:45 PM 3:55 PM 0.17 Pressure up on casing Leaking IA valve, MU IA valve's connection snug Place pressure gauge on OA. Begin 30 minute casing test(Test#1)-7"casing string to assumed ice plug at 7.33',against Lower Master valve.Test failed. Pressure up again. Begin PT#1. PT failed within first 15 minutes. Preform leak hunt. Found condensation in well's original OA flange indicating leak across the historic flange. Note:OA tracks IA pressure 1:1 indicating pressure communication across the annuli's. Given the direct communication,it is assumed that the casing packoff is severely failed or non-existent. Continue to test with test configuration#1. Test lost a total of 70 psi in 30 minutes(start 525 psi,end 455 psi). Failing test,but noted that no major leaking at surface. Call Rob with BLM. Discuss optionality of moving forward with leaking base flange. Discuss no other options to mechanically repair base flange seal or primary packoff. 3:55 PM 6:00 PM 2.08 Ali Pressure Tests witness by BLM representative Brian Hubbell Proceed with BOP test,testing remaining surface equipment above XO flange. Begin Test#2-flow cross swab valve(isolated),in line floor valve,.Test swab valve-leaking in valve assembly. Re-grease.Test again.Failed. Leak with drips indicating valve not sealing properly. Discuss options,and source a high pressure grease gun. 6:00 PM 6:10 PM 0.17 SIMOPS:Small crew begin to cut sacks of NaCI and batch mix in cement unit to build inventory 100bbls of 9.8 ppg brine. 6:10 PM 7:06 PM 0.93 Grease all valves in flow cross with high pressure grease gun. RU to test 7:06 PM 7:15 PM 0.15 Begin Test#2-Pass Begin Test#3-Master Valve,Kill-line#1,Choke line#1. Test failed. Slow drip in swab valve grease port observed. 7:15 PM 8:15 PM 1.00 Source parts and plan to replace in morning. Total Time: 13.3 Other Notes: _v. 'aily Completion / Workover Rep. WELL: South Barrow#2 - 01goo11ik Report#:' 4 DATE: 113-Aug-16 Rig Comp: Rigless Job Company Rep oma He:m rzacn Sayers RIG: NIA Construction AFE#: RKB: - I AREA:I Barrow.AK Services LLC AFE AMT: SUMMARY: Complete NU of and testing of BOPE and choke manifold.MU work floor. Forecast: Finish MU of work floor,heat brine,strap and rack back work string,thaw out wellbore to 500',POOH.RU E-line OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0.96 2.17 Sched 80 10,890 - 1"NPT S-80 Type of Fluid:' _- __ I 'Other: , FROM 1 TO 1 HRS ) DESCRIPTION OF WORK PERFORMED Arrive on location. Grease BOP valves with high pressure grease gun. 5:30 AM 7:25 AM 1.92 Test shell of flow cross and leak test individual valves.Replace grease port on swab valve. I Begin Test#4-Master Valve,Kill-line#2,Choke line#2, Floor Valve. Test failed. Slow bleed off.Purge system of air and re-test.Fail.Make third attempt-fail,tighten swab valve packing stem, Make forth attempt-fail.Grease swab valve,purge more air out of system. Perform test again-fail.Re-grease,make fifth attempt-fail. Move bleeder hose above 9'above ground level. Purge system. make sixth attempt-fail. Make seventh and eighth attempt-fail.Re-grease and purge all lines. Make ninth attempt on Test#4-Pass.Test to 500 psi for 10 min. 7:25 AM 11:38 AM 4.22 All Pressure Tests witness by BLM representative Brian Hubbell 11:38 AM 11:45 AM 0.12 Begin Test#5-Choke Line#1,Kill Line#1,Casing against ice plug. First attempt-fail. Torque up Casing spool antique bolts that were workable Was able to apply torque to 5 bolts around the flange. Some nuts were 11:45 AM 12:35 PM 0.83 crumbling and flaking away and could not be torqued up. Make second attempt on Test#5.Pass. 12:35 PM 1:05 PM 0.50 Starting-570 psi, 10 min-563 psi,20 min-543 psi,30 min-538 psi(32 psi loss total) Begin Test#6-Choke Manifold Valve#1,3,5,Master Valve-Fail. Make two attempts-fail. 1:05 PM 2:09 PM 1.07 Make attempt to seat 100 psi below master to get to seat. No success. Begin Test#7-Choke Manifold Valve#1,3,5,7"casing string to assumed ice plug at 7.33'.Pass. 2:09 PM 2:39 PM 0.50 Starting-593 psi, 10 min-585 psi,20 min 575 psi,30 min-568 psi(25 psi total loss). Begin Test#8-Choke Manifold Valve#2,4,7"casing string,CMIT OA x IA,OA 1/4 turn valve 1 &2. IA 1/4 turn valve 1 Fail. Make second attempt after purging air out of lines. Pass. 2:39 PM 3:10 PM 0.52 Starting-570 psi, 10 min-555 psi,20 min-542 psi,30 min-539 psi(total loss-31 psi) 3:10 PM 3:55 PM 0.75 NU BOP pipe ram. RU to test using 1"Test joint. Begin Test#9-Pipe Ram,Master Valve,Floor Valve. Leak in lower seal. MU all threads again. Re-test.Pass 3:55 PM 4:10 PM 0.25 Test to 500 psi for 10 min. 4:10 PM 6:15 PM 2.08 MU riser and flow line to pipe ram. MU work floor table. MU scaffolding.Begin bracing work floor. Total Time: 12.8 __. Other Notes: ally Completion / Workover Rep. WELL: South essJob pigaonik Report#:I 5 DATE: 114-Aug-16R Rig Comp: igless Job c Company Rep our,r-ler"; Sayer; zac:n RIG: N/AConstruction RKB: 16 6 I AREA:1 Barrow.AK Services LLC AFM T. AFE AMT: SUMMARY: Finish MU of work floor,heat brine,strap and rack back work string,thaw out wellbore to 200',circulate and condition well. Forecast: Suspend operations awaiting plan forward. OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0.96 2.17 Sched 80 10,890 1"NPT S-80 Type of Fluid:1 NaCl Brine, 1MW: 1 9 8 ppp Other: I , FROM J TO f HRS DESCRIPTION OF WORK PERFORMED Small crew sent to location to begin heating brine ahead of full crew. Finish RU of scaffolding,MU work floor hand rails,weld ' support braces to work floor. MU hole fill pump and line.Test all surface lines for leaks. MU flow line and flow line support. Lift pipe handling tools to work floor. 5:30 AM 9:30 AM 4.00 OA pressure-0 psi. 9:30 AM 10:30 AM 1.00 Strap 1"work string,PU and Rack back against work floor vertical. Walk line up to ensure all flow lines and return lines properly aligned. Work through well head,BOP,flow cross,and choke to check alignment.Fill hole,check for leaks. 10:30 AM 11:00 AM 0.10 OA pressure-0 psi. 11:00 AM 11:15 AM 0.25 Conduct Pre-Spud with all crew members. MU Jt#1. No BHA,going in hole with open ended pipe. 11:15 AM 11:30 AM 0.25 Conduct tool box talk with floor hands. Walk through all positions,movements,and responsibilities. MU Jt#2.Circulate down thawing ice.0.32 bpm,0 psi. 11:30 AM 11:50 AM 0.33 OA pressure-0 psi. 11:50 AM 12:09 PM 0.32 MU Jt#3.Circulate down thawing ice.0.32 bpm,0 psi. 12:09 PM 12:20 PM _ 0.18 MU Jt#4.Circulate down thawing ice.0.32 bpm,0 psi. 12:20 PM 12:30 PM 0.17 MU Jt#5.Circulate down thawing ice.0.32 bpm,0 psi MU Jt#6.Circulate down thawing ice.0.32 bpm,0 psi 12:30 PM 12:40 PM 0.17 OA pressure-0 psi. 12:40 PM 12:51 PM 0.18 MU Jt#7.Circulate down thawing ice.0.32 bpm,0 psi. 12:51 PM 1:02 PM 0.18 MU Jt#8.Circulate down thawing ice.0.32 bpm,0 psi. 1:02 PM 1:05 PM 0.05 MU Jt#9.Circulate down thawing ice to 174'MD(158'below ground level)0.32 bpm,0 psi. Get shut down order from BLM representative Rob Brumbau.Halt forward operation to continue thawing wellbore. CBU while reciprocating pipe to ensure hole clean prior to setting in slips.CBU @ 0.35 bpm,0 psi. 1:05 PM 1:45 PM 0.67 OA pressure-0 psi. 1:45 PM 5:46 PM 4.02 Halt all well operations. Discuss plan forward with BLM and AOGCC. Arrive back on location. Turn on boiler and continue to heat pits. Reciprocate pipe and circulate to bring well temperatures back up. 5:46 PM 6:00 PM 0.25 OA pressure-0 psi. 6:00 PM 6:03 PM 0.05 RIH w/Jt#9.Circulate down thawing ice.0.32 bpm,0 psi. 6:03 PM 6:11 PM 0.13 MU Jt#10.Circulate down thawing ice.0.32 bpm,0 psi. 6:11 PM 6:15 PM 0.07 MU Jt#11.Circulate down thawing ice 0.32 bpm,0 psi. Stop at 216'MD(200'below surface level). Circulate and reciprocate.0.35 bpm,0 psi 6:15 PM 6:45 PM 0.50 OA pressure-0 psi. 6:45 PM 6:50 PM 0.08 POOH 2 joints MU Kelly,circ and reciprocate. 0.32 bpm,0 psi 6:50 PM 7:10 PM 0.33 140°in,90°out. 7:10 PM 7:20 PM 0.17 Shut down pumps,set pipe in slips,shut in pipe rams on 1"workstring OA pressure-0 psi. Total Time: 13.8 Other Notes: s gaily Completion /Workover Rep. WELL: South Barrow#2 Olgoonik Report#:1 6 DATE: I 15-Aug-16 Rig Comp: Rigless Job Company Rep Oink He„,i zachsarers RIG: N/A Construction RKB: 16 ft 1 AREA:1 Bartow,AK Services LLC AFM A: AFE AMT: SUMMARY: Suspend operations awaiting plan forward Dig out around cellar. Record observations, Forecast: _Suspend operations awaiting plan forward. OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0.96 2.17 Sched 80 10,890 1"NPT S-80 Type of Fluid: NaCl Brine JMW: J 9.8 ppg Other. I . 1 FROM ( TO 1 HRS ] DESCRIPTION OF WORK PERFORMED Well operations halted,Awaiting approved plan forward from the BLM. Arrive on location.Crew began de-watering around the well in an effort to dig out the well's cellar. Remove scaffolding,LD racked back workstring,selectively remove eco-mats to gain access to cellar. Successfully dig out the cellar while running two pumps to continuously remove weeping in water. Observe the 11-314"surface casing below the bottom most visible flange as expected. Re- build location. 7:00 AM 6:00 PM 11.00 OA pressure-0 psi. Total Time: 11.0 Other Notes: -"" • ail Completion / Workover Rept' WELL: South Barrow 02 Olgoonik Report#:I 7 DATE: 116-Aug-16 Rig Comp: Rigless Job Company Rep Oink e;"i zacn Sapars RIO: NIA Construction RKB: 16 ft ( AREA:1 Barrow.AK Services LLC AFM#: AFE AMT: SUMMARY: Suspend operations awaiting plan forward.Thaw down the 7"to 400' Circulate heated brine in preparation for CAL Forecast: Circulate heated brine in preparation for CBL Run CBL. OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 _ 0.96 400.0 2.17 Sched 80 10,890 - 1"NPT S-80 Type of Fluid:1 NaCl Brine ,MW: I 9.8 ppgJOther: I i FROM i TO I HRS ) DESCRIPTION OF WORK PERFORMED Wait on orders while. Perform general housekeeping. 7:00 AM 1:00 PM 6.00 OA pressure-0 psi. Arrive on location.Fire up boiler and begin heating brine. PU joints and rack back in preparation to RIH Move in and position crane. Fabricate a gauge ring/drift to make a dummy run of the plan forward's CBL tool to ensure it will fit through the stack. Fabricate a T-bar to lower drift through the stack. 1:00 PM 2:30 PM 1.50 OA pressure-0 psi. 2:30 PM 2:45 PM 0.25 PJSM with all hands prior to beginning down hole operations. 2:45 PM 3:15 PM 0.50 POOH on elevators with all joints and rack back No over pull observed. MU 2.80"drift and RIH using T-bar. No go at weld on collet flange below the bottom master. POOH. MU 2.75"drift and RIH. Same results. MU 2.375"drift and RIH. No obstructions noted. Call e-line company and order correct sized CBL for the upcoming operations. 1-11/16"CBL sourced and in route. 3:15 PM 5:15 PM 2.00 OA pressure-0 psi. 5:15 PM 5:45 PM 0.50 RIH on elevators from 0 to 218.25'MD Tag hard ice at 218.25'MD(202.25'below ground level). MU joint#12 and rig up to Kelly. Circulate jt#11 and 12 down.(202'-246.29'MD) Initial returns temperature 35°F. 0.35 bpm,0-50 psi 5:45 PM 6:13 PM 0.47 OA pressure-0 psi. RIH with Jt#13 while circulating hot brine. (246.29'-266.83') 0.5 bpm,0-75 psi 6:13 PM 6:24 PM 0.18 OA pressure-0 psi. RIH with Jt#14 while circulating hot brine. (266.83'-287 35') 6:24 PM , 6:38 PM 0.23 0.5 bpm,0-100 psi RIH with Jt#15 while circulating hot brine. (287.35'-307.89') 0.5 bpm,0-100 psi 130°F circulating in,70°F flowing out 6:38 PM 6:57 PM 0.32 OA pressure-0 psi. RIH with Jt#16 while circulating hot brine. (307.89'-328.40') 1.0 bpm,200-300 psi 6:57 PM 7:08 PM 0.18 130°F circulating in,70°F flowing out RIH with Jt#17 while circulating hot brine (328.40'-348.92) 1.2 bpm,300-600 psi 7:08 PM 7:20 PM 0.20 140°F circulating in,70°F flowing out RIH with Jt#18 while circulating hot brine. (348.92'-370.45') 1.2 bpm,450-600 psi 7:20 PM 7:30 PM 0.17 140°F circulating in,80°F flowing out RIH with Jt#19 while circulating hot brine. (370.45'-390.97') 1.2 bpm,450-600 psi 7:30 PM 7:48 PM 0.30 140°F circulating in,80°F flowing out RIH with Jt#20 while circulating hot brine. (390.97'-400') 1.2 bpm,450-600 psi 140°F circulating in,90°F flowing out. 7:48 PM 7:54 PM 0.10 OA pressure-0 psi. 7:54 PM 8:05 PM 0.18 POOH on elevators from 400'to 349'MD.Rack back joints 20,19,18. 8:05 PM 8:15 PM 0.17 Prepare crane and location for circulating through the evening. Have safety meeting with evening shift crew. 8:15 PM 8:30 PM 0.25 OA pressure-0 psi. 8:30 PM 11:59 PM 3.50 Small crew left on location working over to continually circulate heated brine until CBL tools arrive and are rigged up. Total Time: 17.0 Other Notes: wily Completion /Workover Repo WELL: South Barrow#2 Olgoonik Report I 8 DATE: 117-Aug-16 RCompany Comp: Rigless Job Company Rep Dtro,H t z.cn sayers RIG: N/A Construction AFE#: RKB: 16 ft I AREA:I Barrow,AK Services LLC AFE AMT: SUMMARY: Circulate heated brine in preparation for CBL.RIH and tag at 400',CBU,Run CBL. Forecast: Plan forward To Be Determined OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0.96 400.0 2.17 Sched 80 10,890 1"NPT S-80 Type of Fluid:I NaCl Brine [MW: 9.8 ppg {Other: I FROM I TO HRS DESCRIPTION OF WORK PERFORMED Circulate heated 9.8 ppg brine from 350'MD to surface. Temp in:100°F,Temp Out:70°F 12:00 AM 7:00 AM 7.00 OA pressure-0 psi. Circulate heated 9.8 ppg brine from 350'MD to surface. Temp in: 100°F,Temp Out:70°F 7:00 AM 12:00 PM 5.00 OA pressure-0 psi. 12:00 PM 12:15 PM 0.25 PJSM to discuss upcoming operations 12:15 PM 12:30 PM 0.25 RIH with It's 18, 19,20 Tag at 400'MD.POOH LD jt#20 Kelly up,CBU at 390.97'MD, 1.2 bpm,500 psi. Temp in: 100°F,Temp Out:70°F 12:30 PM 12:45 PM 0.25 OA pressure-0 psi. Break Kelly,POOH w/workstnng on elevators(19 joints) 12:45 PM 1:15 PM 0.50 fill hole with hole fill pump MU e-line tools and pressure control equipment 1:15 PM 2:30 PM 1.25 OA pressure-0 psi. 2:30 PM 3:30 PM 1.00 Make gauge ring run with dumb iron to 350'with eline. Unable to pass 351. Lost all weight at 351'.POOH MU CBL to E-line,RIH with CBL tool with no applied pressure. RIH to calibrate tool and make repeat pass. Unable to get tool past 200'while trying to RIH. It is noted that the well file expressed that there was a thermistor cable left tin the well that was frozen in the 7"casing. Only 7'of the cable was recovered pre rig-up,leaving an unknown quantity of thermistor cable left in hole. It is assumed that the thermistor cable was set completely free from thawing down to 400'and birds nested in the 7"casing during the logging operations. POOH with CBL. Lower centralizer damaged(lower rivet sheared and centralizer blade deformed)indicating that it was pulled on before releasing from fish. 3:30 PM 5:30 PM 2.00 OA pressure-0 psi. Make several attempts to gain access to wellbore for a second logging run under pressure. Unable to get tool below 30'.Decision 5:30 PM 6:15 PM 0.75 made to shut down e-line operations and consult with BLM. LD e-line tools and prepare location for shut down. 6:15 PM 6:45 PM 0.50 OA pressure-0 psi. Total Time: 18.8 - Other Notes: ___ _ Vaily Completion / Workover Rept WELL: South Barrow 02 O l go o n i k Repo Rig Comp: Rigless Report 0:1 9 DATE: I 18-Aug-16 Job Company Rep Dmk ae;m r zaaisavnm RIG: N/A Construction AFE ft RKB: 16 It I AREA:I Barrow,AK Services L` AFE AMT: SUMMARY: Wait on orders,monitor pressures as the OA freezes up. Forecast: Plan forward To Be Determined 0D: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0.96 2.17 Sched 80 10.890 - 1"NPT S-80 Type of Fluid: NaCI Brine "LAW: 1 9 6 ppg !Other: I I FROM I TO I HRS I DESCRIPTION OF WORK PERFORMED Wait on orders for change of conditions. 7:00 AM 11:59 PM 17.00 Monitor pressures and volume displacement as the OA re-freezes. Total Time: 17.0 Other Notes: I 11® ail Completion / Workover Repo WELL: South Barrow#2 Olgoonik Report#: 10 DATE: 19-A !-16 Rig Comp: Ripless Job Compan Re• r"r Heim r za n Sayers RIG: N/A Construction AFE#: RKB: 16 ft AREA: Barrow,AK Services U..0 AFE AMT: SUMMARY: Wait on orders,monitor pressures as the OA freezes up. Get ap•roved item forward.Prepare to bei in work. Shut down for crane incident Forecast: Walt on crane to be operational 0D: ID: Depth: Wei.ht: Grade: Burst: Collapse: Notes: Work String 1 315 0.96 2.17 Sched 80 10,890 - 1"NPT S-80 Type of Fluid NaCl Brine 1MW: t 9.6,pJOther: I I._ FROM J TO J HRS ( DESCRIPTION OF WORK PERFORMED Wait on orders for change of conditions. 7:00 AM 1:00 PM 6.00 Monitor pressures and volume displacement as the OA re-freezes. 1:00 PM 1:45 PM 0.75 Prepare location for well activity. Rack back work stung Bang boiler up to pressure. Have PJSM, 1:45 PM 5:00 PM 3.25 Shut down for crane incident. Total Time: 10.0 Other Notes: ...`...,,,.,.._........... wily Completion /Workover Rept WELL: South Barrow*2 0Igoonik Report#:I 11 DATE: 20-Aug-16 Rig Comp: Rigiess Job Company Rep Mak Heim r z r,savers RIG: NIA Construction AFE*: _ _ RKB: 16 ft I AREA:I Barrow,AK Services LLC AFE AMT: - SUMMARY: Wait on crane to be operational. Forecast: Mobilize to SB#2,set 50 cement plug.WOC. OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: _ Work String_ 1.315 0.96 2.17 Sched 80 10.890 - 1"NPT S-80 _-_T�rpe of Fluid: NaCI Brine 1 MW: T 9 8 opg jth Oer' I I FROM I TO I HRS j DESCRIPTION OF WORK PERFORMED Wait on crane to be operational. Crane was mobilized to the UIC shop. Waiting on crane certifier to mobilize from Kenai.Wil be in 7:00 AM 5:00 PM 10.00 Barrow at 11 AM tomorrow. Total Time: 10.0 Other Notes: y - ' ally Completion C Workover Rep• WELL: South Barrow#2 0lgoonikReport#:I 12 DATE: 121-Aug-16^ Rig Comp: Rigless Job RIG: N/A Construction Company Rep Hamtza n&syes Services AFE#: RKB: 16 ft j AREA.i Barrow.AK Services LLC AFE AMT: SUMMARY: Have crane certified for lifting operations.Mobilize to SB#2. Forecast: _Set 50'cementpkp. WOC.Tag top of plug. OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0 96 2.17 Sched 80 10.890 - 1"NPT S-80 Type of Fluid: NBCI Brine 1MW: 9.8 ppg jOther: I I . .. FROM I To HRS _ _ DESCRIPTION OF WORK PERFORMED 7:00 AM 11:00 AM 4.00 Wait on crane certifier to arrive in Barrow. Crew went to Arcon#1 to complete cut off of casing below surface. 11:00 AM 4:00 PM 5.00 Crane Inspector Perform crane inspection and certification process,pass. 4:00 PM 4:30 PM 0.50 Mobilize crane to SB#2 from UIC yard. 4:30 PM 5:30 PM 1.00 Set up crane into position.Prepare for operations in the morning, Total Time: 10.5 Other Notes: a Sally Completion I Workover Rep. WELL: South Rigie rrow slob 01goonik Report Co 13 DATE: 22-Aug-16 Rig Comp: Rigless Job n Company Rep Donaream Zara,Sayers RIG: N/A Construction AFE#: RKB: 16 ft I AREA:I Bartow.AK Services LLC AFE AMT: SUMMARY: Fish thermistor cable free out of wellbore. RIH and tag ice at 400' Set cement plug from 400'to 350' Circulate heated brine from 200 to surface Forecast: Tag TOC,perform compressive strength test,POOH,ND BOPE,ND wellhead,RIH with 3/4"workstring down the OA OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0.96 400.0 2.17 Sched 80 10,890 - 1"NPT S-80 Type of Fluid:1 NaCl Brine �MWy 9.6 ppg Other. I FROM I TO 1 HRS I DESCRIPTION OF WORK PERFORMED 7:00 AM 8:00 AM 1.00 Arrive on location.Prepare Kelly for cementing operations. RU cement manifold.MU elevators. 8:00 AM 8:30 AM 0.50 RIH with JI#1.RIH wjt#2. Tag and take all weight at 24.98(-9'below surface) MU Kelly hose attempt to circulate jt#2 down with no success.Circulate at 1.2 bpm,350 psi. Strap the pipe and make numerous 8:30 AM 9:30 AM 1.00 attempts to push pipe past obstruction with pumps on. Did not gain any depth in all attempts.PU BHA above swab valve. Standby for call in with the BLM and AOGCC Discuss plan forward.Run in to town to type written variance request to break containment.RIH with wire catcher spear and snag 2 cables to the work floor. Make attempt to pull entire cable to the floor with no success. Apparent birds nest of cable below the bottom flange with 2 375"ID restriction. Continue to try to work cable out of hole. MU 1"T-bar and push birds nest down in an attempt to pull one end of the bale free. Made 4'of progress,then could not pull further. Decision made to use approved variance to break containment and ND the IA outlet ports 2"nipple allowing side access to 9:30 AM 12:00 PM 2.50 the wellhead. Once the 2"nipple was opened and the stack drained,several braids of cable could be seen. Begin to pull 1 strand of cable through the 2"port opening at a time and cut through the birds nest. Work the cable again and again until all knots of the birds nest were pulled free. 1 sing stand of cable remained and free fell down the well after all other strands were cut.-125'of cable were 12:00 PM 1:30 PM 1.50 recovered form the well. NU the 2"IA port's nipple and set up to hydro test. Hydro test the entire BOP stack for 10 minutes with BLM representative Brian 1:30 PM 1:55 PM 0.42 Hubbell. No leaks observed. Pass. 1:55 PM 2:45 PM 0.83 RIH on elevators with joints 1-20. Tag at 400'MD. LD joint#20. 2:45 PM 3:30 PM 0.75 CBU x2 with cold brine. 60°In,501rOut 1.2 bpm,300 psi.Conduct cement plug dry run with crew all crew involved. 3:30 PM 4:00 PM 0.50 Conduct PJSM with all crew for the upcoming cement plug. Perform cement plug in the 7"casing from 400'to 350'MD. Pump 12 bbls fresh water spacer at 1.0 bpm,450 psi. Take on 2.5 bbls of fresh water,add 10.0#of retarder and defoamer. Wet yield 1 057 ft3/sk,mix water 4.8 gal/sk Batch mix 25 sacks of Artic Set cement and mix to 14.8ppg. After mixing,line up to dump valve and dump 1.5 bbls into waste container leaving 3 bbls pumpable for the job(over mixed to ensure adequate amount was in batch mixer to get mixed correctly and provide excellent homogenous plug). Batch mix started at 4:53 PM. Pumped 3 bbls of 14.8 ppg cement down 1"workstring taking returns up the IA at 0.5 bpm,50 psi.POOH slowly as cement pumped around the workstring. Once 2.0 bbls away break off one joint and LD. MU Kelly and continue to pump cement job while POOH with the elevators while circulating the cement plug in place. Cement in place at 5:15 PM on 8/22/16. 4:00 PM 5:30 PM 1.50 POOH to 321'MD and circulate 5bbls fresh water spacer then fresh water with contaminant to clear workstring of cement. POOH from 321'MD to 250'MD Kelly up and CBU to ensure workstring clear of cement ad debris. 5:30 PM 6:00 PM 0.50 SIMOPS:Boiler operator heating up pits to get to temperature for upcoming thawing operations. 6:00 PM 6:25 PM 0.42 POOH from 250'MD to 215'MD.Kelly up and circulate heated brine around annulus to begin the thaw the OA. Continue to circulate with 1"workstring at 215'MD. Circulate at 1.0 bpm,50 psi. Circulate with in temperature of 140-160°F 6:25 PM 7:30 PM 1.08 Continue to circulate at high rate until flow line temperature reached 115°F Line up to C-pump and prepare to circulate entire evening in preparation to remove stack and RIH with the 3/4"workstring in the 7:30 PM 11:59 PM 4.50 OA 0 25 bpm,0-25 psi. Total Time: I 17.0 Other Notes: Alb daily Completion /Workover Rep WELL: South Barrow#2 Olgoonikiiiss Report CI 14 DATE: 123-Aug-16 Rig Comp: Rigless Job Company Rep o"k-{"r rzan sayers RIG: N/A Construction AFE#. RKB: 16 ft I AREA:I Barrow.AK Services LLC AFE AMT: - SUMMARY: Tag TOC,perform compressive strength test,POOH,ND BOPE,ND wellhead,RIH with 3/4"workstring down the OA.RIH with 1"down the IA Forecast: CBU,cement all annuli for final P&A. OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0 96 338.0 2.17 Sched 80 10,890 - 1"NPT S-80 Type of Fluid:I NaCl Brine �MW: 9.8 ppg 'Other: I _ I FROM I TO I HRS DESCRIPTION OF WORK PERFORMED Small crew on location for evening shift. Using the Cement unit's C-pump continue to circulate heated brine down the IA from 200'below surface to surface. 0 25 bpm,0-25 psi. 150°In, 100°Out 12:00 AM 7:00 AM 7.00 OA pressure-0 psi 7:00 AM 7:30 AM 0.50 Arrive on location.Continue to circulate.0.25 bpm,0-25 psi. 150°In,100°Out RIH on elevators from 216'MD(200'below surface)to 354'MD/338'below surface. Tag solid at 354'MD. Set down and perform 500psi cement compressibility test. Test passed. Test witnessed by BLM representative Brian Hubbell. 7:30 AM 8:10 AM 0.67 OA pressure-0 psi POOH on elevators from 354'MD to surface. LD sideways coming out of hole. 8:10 AM 9:00 AM 0.83 OA pressure-0 psi Clear work floor of all lifting tools and equipment. Cut all support braces from the workfloor. Suspend floor to crane and break riser 9:00 AM 11:00 AM 2.00 and flow line from top BOP connection. PU on work table and remove from location. ND ram BOP. ND BOP flow cross. Begin to break IA spool off of the OA spool. Unable to break historic bolts and nuts with hammer wrench. Nuts crumbling in the 11:00 AM 12:00 PM 1.00 wrench.Proceed to cut the nuts off of the bolts with a Oxygen-Acetylene Torch. Remove IA Spool,and inspect top of OA spool. An API ring was present between the spools and was in decent condition. The packoff assembly had no visual flaws or issues. The rubber elements looked to be in good condition and creating a good seal around the 7"casing.Attempt to jar free packoff assembly.No success. Grind down and weld on lifting bolts onto the packoff 12:00 PM 1:00 PM 1.00 assembly and pull. Successfully removed packoff with straight pull exposing slips, Make cut in 7"casing below slips to full expose 1 of the 3 slips to remove. Remove one slip to allow for adequate clearance to RIH 1:00 PM 1:30 PM 0.50 in the OA with 3/4"workstring. 1:30 PM 2:00 PM 0.50 RU 3/4"lifting and handling equipment, Dress OA spool flange face in preparation for capping plate to be welded.Fabricate capping plate and key slot for the 3/4" RU 2:00 PM 3:30 PM 1.50 lifting nubbin and circulating Kelly for 3/4". 3:30 PM 5:00 PM 1.50 RIH on elevators with 3/4"workstring from surface to 179'below surface down the OA. No obstructions noted, 5:00 PM 5:30 PM 0.50 Pull 3/4"workstring to side and secure in place. MU 1"lifting and handling equipment. RIH with 1"workstring down the 7"casing from surface to 338'below surface. Tag hard bottom. Swap out full joint to pup joint to 5:30 PM 7:00 PM 1.50 space out surface stick up at floor level. MU landing coupling to 1"workstring and lower to table. When lowering to the table the pins of the 1"workstring inside of the 7:00 PM 7:4.5 PM 0.75 landing coupling sheared from side loading and 1"work string RIH and rested on bottom. Cut out capping plate and gain access to the 7"casing. Drain 7"casing to 26'below surface. Discover casing collapse of the 7" 8.5'below surface. Casing collapsed of 50%deformation into the 7"casing. Top of work string noted at 12.5'below surface. 7:45 PM 8:30 PM 0.75 Discuss options forward given casing collapse. Decision made to grapple the 1"workstring using small chain. Sting into the 1"workstring using 1/2"steel rod on a T-bar.Make 2 wraps with the chain and lower loops down the T-bar and over the 1"workstring. Make first attempt to get a bite with no success. POOH. Make 3 loops with chain and work down to over 1" workstring. Continue to lower chain past first collar of the 1"and attempt to pull tension. Successfully got a strong bite with the looped chain. RU chain to lifting equipment and successfully pull out the 1"workstring to surface. Once 1"to surface,weld on 8:30 PM 10:30 PM2.00 bracing to ensure cannot fall back into hole.Secure the 1"workstring and set in elevators. 10:30 PM 11:30 PM 1.00 Circulate fluids down the 1"workstring to ensure clear of debris and obstructions. Retums noted and pressures normal.Clear of Total Time: 23.5 Other Notes: *lily Completion /Workover Rep* WELL: South Barrow#2 0Igoonik Report 10:1 DATE: 1 24-Aug-16 Company Comp: Rigless Job Compaa ny Rep DA Hen;Zacn saves RIG: N/A Construction AFE#: RKB: 0 ft I AREA:I Barrow.AK Services LLC AFE AMT: SUMMARY: CBU,cement all annuli for final PBA.Prepare location for demobilization. Forecast: Perform cement compressibility test,Cut off wellhead,make final casing cut 3'below surface and cap. OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 0.96 338.0 2.17 Sched 80 10,890 1"NPT S-80 Type of Fluid:I NaCI Brine IMW: 1 9 8 ppg JOther: II FROM I TO [ HRS DESCRIPTION OF WORK PERFORMED Arrive on location. Weld on capping plate and land 1"workstring on capping plate.Make final dressing to capping plate and install 7:15 AM 9:15 AM 2.00 1"workstring packoff to capping plate.RU return line from the OA ports to the closed looped pits. RU cement manifold. 9:15 AM 9:45 AM 0.50 CBU in the OA x2 using the 3/4"work string. 1 bpm, 100 psi,returns temperature 40°F 9:45 AM 10:15 AM 0.50Swap valves at the cement manifold,CBU in the IA x2 using the 1"workstring. 1 bpm,50 psi,returns temperature 45°F. 10:15 AM 10:30 AM 0.25 0.50 ,Swap pre-job planning meeting on cement job.Continue to circulate IA while in meeting. Clean up the batch mixer with fresh water to remove NaCl brine contaminant. Pump 5 bbls fresh water down IA. 1 bpm,200 psi. Bring on additional fresh water in batch mixer and pump 10 additional(15 total)bbls in the IA. 1.1 bpm,300 psi. Note returns swapped from dirty brine to clear fresh water at 9.5 bbls into the circulation. 10:30 AM 11:12 AM 0.70 Swap manifold to 3/4"workstring and circulate in the OA. Pump 5bbls of fresh water in the OA. 0.6 bpm,50 psi. Perform cement abandonment in the 7"casino from 338'to surface and OA from 19Q'to surface. Take on 17 bbls of fresh water,add 30.0#of retarder and defoamer. Wet yield 1.057 ft3/sk,mix water 4.8 gal/sk Batch mix 150 sacks of Artic Set Class'C'cement and mix to 14.8ppg. Begin Batch Mixing at 11:12 AM. Pumped 15 bbls of 14.8 ppg cement down 3/4"workstring taking returns up the OA at 0.5 bpm,0-150 psi cement returns noted after 13.5 bbls away Swapped alignment on cement manifold. Pumped 15 bbls of 14.8 ppg cement down 1"workstring taking returns up the IA at 1.2 bpm,200-400 psi. cement returns noted after 12.0 bbls away. Cement in place at 12:48 PM on 8/24/16. 11:12 AM 1:00 PM 1.80 Cement returns weighed 14.6ppg Clean and clear all surface equipment of cement. Wash down all lines and tools. Circulate fresh water and retarder into disposal 1:00 PM 2:00 PM 1.00 tanks. Break down wellhead,cement manifold,and returns lines. Prepare location for demobilization. Perform fluid management.Remove Class II fluids from active open top tanks and into 2:00 PM 6:30 PM 4.50 shipping containers to be barged to Prudhoe Bay. RD cement unit. RD boiler. Begin to RD mats around location. Total Time: 11.3 Other Notes: •ail Completion / Workover Rep. WELL: South Barrow#2 0igoonik Report MI 16 DATE: 125-Aug-16 Rig Comp: Rigless Job Company Rap :)inx Hem.rza,:"saws RIG: N/A Construction AFE#: RKB: 0 ft I AREA:! Barrow,AK Services LLC AFE AMT: - SUMMARY: Remove base flange,perform cement compressibility test,make final casing cut 3'below surface and cap. Forecast: Final Report OD: ID: Depth: Weight: Grade: Burst: Collapse: Notes: Work String 1.315 I 0.96 338.0 2.17 Sched 80 10,890 1"NPT S-80 I Type of Fluid:j _ Nadi Brine [,: f 9.8 Pp9 'Other: J �_ . ... _ I i FROM ( To HRS ( _ D_ESC_RIPTION OF WORK PERFORMED 7:15 AM 8:00 AM 0.75 Arrive on location. Remove eco-mats from around worksite.SIMOPS:Clean out tanks with super sucker. 8:00 AM 10:00 AM 2.00 Excavale around well.Set up pumps to manage water inflow into cellar pit while working. 10:00 AM 11:00 AM 1.00 Cut 11-3/4"surface casing with Oxygen-acetylene torch 4'below ground level(under starting head). With excavator,remove Cut off the 7"casing with a grinding wheel,and remove from cellar. Dress both the 11-3/4"and 7"casing strings in preparation for 11:00 AM 12:30 PM 1.50 welding marker plate.Weld on marker plate onto 11-3/4"casing—4'below ground level.Left a weep hole at top of 11-3/4"casing. Excavate around rathole.Cut rathole with Oxygen-acetylene torch 3'6"below ground level. Fabricate marker plate and weld onto top 12:30 PM 2:45 PM 2.25 of rathole leaving weep hole. Back fill SB#2 cellar and rathole with over 15 cu.yards of clean fill.Demobilize equipment from location and prepare for barge demobilization from Barrow,AK. 2:45 PM 6:30 PM 3.75 Final report. Total Time: 11.3 Other Notes: POLLARD • South Barrow ColtTest #2 F LINE SERVICES, CBLNDL Log Survey 8-17-16 INC. Database File sbct2.db Dataset Pathname cb1111passl Presentation Format cbl vdl Dataset Creation Wed Aug 17 16:57:34 2016 Charted by Depth in Feet scaled 1:240 -36 CCL 4 0 3 FT.AMP(my) 100 200 VDL 1200 0 Amplified Amplitude(mV) 20 650 T T(usec) 150 II I 1 1 t _ -- AMPS j�.� !. ii . ) . Emig __- . 1 ., r, ' ; 7"CASINGlig s– , i 4. ` I, , e -, f j n .w b t 4—CCLMIS r . r 111 _ 4 NMI 1 ....y- gi j T r : I r i.imii:111111 ,1111111_-t • lain at100 , r t L i, G lI t a 744--CCL i { { , . 1 I . 1 150 �_ t _ 1 I• , { 1 _.....-.._T- -: ��[[(( . 1. . - _ -" . -z !i I -36 CCL 4 0 3 FT,AMP(my) 100 200 VOL 1200 0 Amplified Amplitude(my) 20 1650 T T(usec) 150• III • Form 3160-5 UNITED STATES FORM APPROVED o. (June 2015) DEPARTMENT OF THE INTERIOR ExpireB J1 nulary 37 311,12018 BUREAU OF LAND MANAGEMENT 5.Lease Serial No. SUNDRY NOTICES AND REPORTS ON WELLS 6.If Indin,Allottee or Tribe Name Do not use this form for proposals to drill or to re-enter an abandoned well Use Form 3160-3(APD)for such proposals. SUBMIT IN TRIPLICATE-Other instructions on page 2 7,If Unit of CA/Agreement,Name and/or No. 1.Type of Well 0 Oil Well ❑Gas Well [ ]Other 8,Well Name and No South Barrow Core Test#2 2 Name of Operator Bureau of Land Management 9.API Well No. 50-023-10010 3a.Address 222 W.7th Avenue,#13 Anchorage,Alaska 3b Phone No (include area code) 10.Field and Pool or Exploratory Area 99513 (907)271-4354 Barrow Gas Field 4 Location of Well(Footage,Sec.,T.,R.,M.,or Survey Description) 11.Country or Parish,State Sec 14,T 22N,R18W,UM USA.North Slope Burough,Alaska 12 CHECK THE APPROPRIATE BOX(ES)TO INDICATE NATURE OF NOTICE,REPORT OR OTHER DATA TYPE OF SUBMISSION TYPE OF ACTION ®Notice of Intent ❑Acidize ❑Deepen ID Production(Start/Resume) ❑Water Shut-Off El Alter Casing El Hydraulic Fracturing 0 Reclamation ID Well Integrity ElCasing Repair El Construction ❑Recomplete C]Other 0 Subsequent Report ❑Change Plans ©Plug and Abandon 0 Temporarily Abandon ❑Final Abandonment Notice [J Convert to Injection ❑Plug Back [J Water Disposal 13. Describe Proposed or Completed Operation:Clearly state all pertinent details,including estimated starting date of any proposed work and approximate duration thereof.If the proposal is to deepen directionally or recomplete horizontally,give subsurface locations and measured and true vertical depths of all pertinent markers and zones.Attach the Bond under which the work will be perfonned or provide the Bond No.on file with BLM/BIA.Required subsequent reports must be filed within 30 days following completion of the involved operations.If the operation results in a multiple completion or recompletion in a new interval,a Form 3160-4 must be filed once testing has been completed.Final Abandonment Notices must be filed only after all requirements,including reclamation,have been completed and the operator has detennined that the site is ready for final inspection,) See Attached P&A Procedures. t - - Final report within 30 days of abandonment. `.1 d ,., 1 bc) ....toAcc) ' ft7 ..,v,v4.52"4-') SCANNED MAY 2 3 2017. - .1., (e (.1./ick._ IL" 14.I hereby certify that the foregoing is true and correct Name(Prinred//yped) James O.Nunley Sr.Project Manager Title Signature Date 07/19/2016 THE SPACE FOR FEDERAL OR STATE OFICE USE Approved by Title Date Conditions of approval,if any,are attached.Approval of this notice does not warrant or certify that the applicant holds legal or equitable title to those rights in the subject lease Office which would entitle the applicant to conduct operations thereon. Title 18 U.S.0 Section 1001 and Title 43 U,S_C Section 1212,make it a crime for any person knowingly and willfully to make to any department or agency of the United States any false,fictitious or fraudulent statements or representations as to any matter within its jurisdiction. (Instructions on page 2) • • GENERAL INSTRUCTIONS This form is designed for submitting proposals to perform certain well operations and reports of such operations when completed as indicated on Federal and Indian lands pursuant to applicable Federal law and regulations.Any necessary special instructions concerning the use of this form and the number of copies to be submitted,particularly with regard to local area or regional procedures and practices,are either shown below,will be issued by or may be obtained from the local Federal office. SPECIFIC INSTRUCTIONS Item 4-Locations on Federal or Indian land should be described in accordance with Federal requirements.Consult the local Federal office for specific instructions. Item 13:Proposals to abandon a well and subsequent reports of abandonment should include such special information as is required by the local Federal office. In addition,such proposals and reports should include reasons for the abandonment;data on any former or present productive zones or other zones with present significant fluid contents not sealed off by cement or otherwise;depths(top and bottom)and method of placement of cement plugs;mud or other material placed below,between and above plugs;amount,size,method of parting of any casing,liner or tubing pulled and the depth to the top of any tubing left in the hole;method of closing top of well and date well site condi- tioned for final inspection looking for approval of the abandonment. If the proposal will involve hydraulic fracturing operations,you must comply with 43 CFR 3162.3-3,including providing information about the protection of usable water. Operators should provide the best available information about all formations containing water and their depths. This information could include data and interpretation of resis- tivity logs run on nearby wells. Information may also be obtained from state or tribal regulatory agencies and from local BLM offices. NOTICES The privacy Act of 1974 and the regulation in 43 CFR 2.48(d)provide that you be furnished the following information in connection with information required by this application. AUTHORITY:30 U.S.C. 181 et seq.,351 et seq.,25 U.S.C.396;43 CFR 3160. PRINCIPAL PURPOSE:The information is used to:(1)Evaluate,when appropriate,approve applications,and report completion of subsequent well operations,on a Federal or Indian lease;and(2)document for administrative use,information for the management, disposal and use of National Resource lands and resources,such as:(a)evaluating the equipment and procedures to be used during a proposed subsequent well operation and reviewing the completed well operations for compliance with the approved plan;(b)requesting and granting approval to perform those actions covered by 43 CFR 3162.3-2,3162.3-3,and 3162.3-4;(c)reporting the beginning or resumption of production,as required by 43 CFR 3162.4-1(c)and(d)analyzing future applications to drill or modify operations in light of data obtained and methods used. ROUTINE USES:Information from the record and/or the record will be transferred to appropriate Federal,State,local or foreign agencies,when relevant to civil,criminal or regulatory investigations or prosecutions in connection with congressional inquiries or to consumer reporting agencies to facilitate collection of debts owed the Government. EFFECT OF NOT PROVIDING THE INFORMATION:Filing of this notice and report and disclosure of the information is mandatory for those subsequent well operations specified in 43 CFR 3162.3-2,3162.3-3,3162.3-4. The Paperwork Reduction Act of 1995 requires us to inform you that: The BLM collects this information to evaluate proposed and/or completed subsequent well operations on Federal or Indian oil and gas leases. Response to this request is mandatory. The BLM would like you to know that you do not have to respond to this or any other Federal agency-sponsored information collection unless it displays a currently valid OMB control number. BURDEN HOURS STATEMENT:Public reporting burden for this form is estimated to average 8 hours per response,including the time for reviewing instructions,gathering and maintaining data,and completing and reviewing the form.Direct comments regarding the burden estimate or any other aspect ofthis form to U.S.Department ofthe Interior,Bureau ofLand Management(1004-0137),Bureau Information Collection Clearance Officer(WO-630), 1849 C St.,N.W.,Mail Stop 401 LS,Washington,D.C.20240 (Form 3160-5,page 2) • I South Barrow Core Test#2 Move In Ri2 Up(MIRU): 1. MIRU. 2. Remove current master valve at the upper 7-1/16", 3,000 psi flange. 3. Cut Thermistor cable. 4. Rig up a 7-1/16"DSA to 3",3,000", a 3,000 psi Full Opening Valve,a 3,000 psi Mud Cross,a 3",3,000 psi Full Opening Valve,then a 4",5,000 psi Wireline BOP dressed with 1.315 pipe rams per OCS wellsite superintendents' specifications. 5. Rig up riser assembly, choke,hardline and all annulus valves per OCS wellsite superintendent. 6. Rig up BOP bracing per OCS wellsite superintendent. 7. Rig up and hammer up hardline and choke manifold. 8. Erect scaffold. Rig up boiler and lines, flowline,circulation tanks,water and storage tanks, equipment and fluid products,pumping equipment,recording equipment,crane,tubular products as directed. 9. Hydro test mud riser and surface lines. Mix—100 bbls of new and used NaC1 brine to 9.8 ppg. (Maintain 9.8 ppg at all times). Circulate hot brine across the top of the hole through fill-up line. Monitor and track hole fill volume and circulating volume and temperature. NOTE: Maintain a circulating density of 9.8 ppg at all times. If brine is to left in the hole without circulating for long periods of time,this brine must be circulated and the weight of 9.8 ppg ensured prior to stopping operations. Monitor and hole and pit volumes. 9.8 ppg NaC1 is for a maximum freeze protection point of-5°F. 10. Pressure test all BOPE,safety valves, hard line and choke manifold to 500 psi.This wellhead is the weak point of our blow out control system(due to its'age and known corrosion issues)pressure cycling will be kept to a minimum. Not possible to install a conventional test plug,test will be against casing and ice plug for 30 minutes.Test upper BOP against lower F.O.V. A test pump and joint will be used. Chart and record all tests. All BOP test will be in accordance with Onshore Order#2. BLM must be given a minimum of 72 hours'notice to witness BOP test. 11. Pressure test boiler,lines and safety vales to manufacturer specification. 12. Do not commence operations unless everyone is ready and a pre-operation spud and safety meeting has been conducted and logged. S • Plug and Abandon Procedure: 1. Pick up and make up 1"(1.315"O.D.)work string to Olgoonik's on-site representatives' specifications. 2. Track and record volume to fill the hole and circulate.Record and chart circulating rates and pressures.Track and record fluid volume and temperatures. 3. Pick up and make up 1"work string. Utilize pipe thread compound. Obtain a slow pump rate. Then slowly circulate hot brine(120- 130°F). Record and chart circulating rates and pressures. Track and record fluid volume and temperatures. 4. Continue to pick up and make up 1"work string and work down inside the 7"casing displacing the potentially frozen water and drilling mud left in the well.Pump very slowly while running in the hole. Closely monitor the wellbore and annulus, for the pressure,the returns and return fluid density,wash and work slowly down to a minimum of 500'MD. Closely monitor outer annulus pressure while circulating to bottom.Track and record any pressure build ups. Bleed off any pressure build up and log volume of fluid produced from outer annulus.Maintain well control awareness. Continue in hole if condition allows to 500' MD 5. Circulate as required,continue to circulate surface to surface closely monitoring the wellbore returns and returns density and fluid temperature.Ensure the entire wellbore has thawed.Record and track circulating rates and pressures,fluid density and fluid temperature. 6. Closely monitor the outer annulus at all times. 7. Ensure the entire wellbore is thawed and thermal conditions(fluid to surface or pressure increases)on the outer annulus is noted. 8. Pull 1"work string and lay down. 9. Rig up Pollard wireline unit. 10. Run in hole to TD—500'MD or where conditions allowed per BLM. 11. Perforate the 7"casing into the 7"X 11-3/4"annulus at maximum depth. 12. Pull out of the hole with wireline and tools. 13. Note and take pictures of perforation gun. Note shots fired and calculated depth of shots. 14. Establish circulation down the 11-3/4"X 7"annulus and up the 7"casing. Prepare to cement. Record and track circulating rates and pressures, fluid density and fluid temperature. 15. If circulation cannot be established down the 7"X 11-3/4"annulus and up the 7"casing,Trip in hole back to bottom with work string and continue heating the 7"wellbore. Circulate hot fluid until the annulus is thawed enough to circulate. Record and track circulation rates,pressures fluid volumes and temperatures. • Contingency-Requires approval from BLM prior to proceeding 16. If unable to establish circulation down the 7"by 11-3/4"annulus and up the 7"casing. 17. Contact BLM and discuss if sufficient depth has been reached for conditions or a new plan forward. 18. If needed. Rig up Pollard wireline unit and reshoot(perforate)the 7"casing 50 feet higher up hole. 19. Pull out of the hole with wireline and tools. 20. Note and take pictures of perforation gun. Note shots fired and depth of shots. 21. Attempt to establish circulation down the 11-3/4"by 7"annulus and up the 7"casing. Record and track circulating rates,pressures and fluid density and temperature. 22. If circulation is established,ensure the entire wellbore is thawed. Record and track circulating rates and pressures, fluid density and fluid temperature. 23. If circulation is not established,contact the BLM and discuss a reshoot(perforate)50 feet higher up hole. Continue in this manner until circulation can be established. 24. Meanwhile,prepare to rig down. Excavate around the rat hole to 5+feet below ground level. This is a range 2,(avg 28') 10"casing stub sticking up -1 feet above ground level on location within-40 feet of the actual core test well. Cut off rat hole casing 3+feet below ground level.Fill with cement after cementing SBCT#2 wellbore, 25. Cement: cement down the 11-3/4"by 7"annulus and up the 7"casing from surface to surface. Work pump rates as required. Monitor and track circulating rates and pressures.Monitor and track slurry density and temperatures. 26. Heat 80 bbls of cement mix water to 60°F. 27. Mix a batch of 65 bbls of permafrost C cement(to obtain a minimum-500 ft. of cement plug plus XS)as: Density-14.8 ppg Yield 1.057 cu ft./sk Mix Water 4.48 gal/sk Permafrost C cement/14.8 ppg/Estimated pump rate 1 bpm Downhole volume-56 bbls 28. Pump a 3 bbl fresh water spacer down the 7"X 11-3/4"outer annulus and up the 7"wellbore. 29. Pump the cement plug down the 7"X 11-3/4"outer annulus and up the 7"wellbore until good cement returns are observed and weighed at surface. Displace with clean NaC1 brine to the return pit. Record and track circulating rates and pressures,fluid density and fluid temperature. 30. Have vacuum truck standing by. • • 31. Have mix water and Sodium Citrate to contaminate cement ready to go. 32. When the pump is shut down,immediately shut down,the annulus will U-tube stable if in an unstable condition. 33. Cement in the rat hole. 34. Clear batch mixer,lines and excess cement into lined super sacks. 35. Clear and clean lines and cementing equipment. 36. WOC at least 12 hours. 37. If perforations were moved up hole to establish circulation,be prepared for a top job if conditions require. 38. Meanwhile,prepare only to rig down and prepare for moving 39. Using excavator,excavate around the wellhead to a depth of five feet below tundra level. 40. After WOC period is finished and using a cutting torch and hydraulic jack hammer(for cement), cut all casing and tubing strings off to leave well severed 4'—5'below tundra level. 41. Remove severed casing/tubing and prepare for transport to Prudhoe Bay. 42. Top off all annuli and tubing in well with cement if necessary. BLM representative to witness. 43. Forward the data to the Anchorage office for discussion with BLM representatives in town if one is not available on site or if desired. 44. Photographically document the condition of the top of the well before welding on the marker plate, 45. Weld a'/4"thick, 16"diameter steel marker plate over the top of the cut-off well casings. BLM representative to witness. Marker plate to have the following information bead-welded onto it: Olgoonik Construction Service Co. South Barrow Core Test#2 API#50-023-10010-00-00 PTD#100-024 P+A:Olgoonik Svs 1. 11-3/4"Rat-hole marker,welded onto it: Olgoonik Construction Service Co. South Barrow Core Test#2RH API#50-023-10010-00-00 PTD#100-024 P+A: Olgoonik Svs • • 2. Photographically document the welded-on marker plate. 3. Back-fill excavation with original soil. Top excavation with five yards of clean gravel brought out from Prudhoe Bay,mounding it over the well to compensate for settling as soil thaws. Photographically document. 4. Clean location,obtain site clearance approval from BLM and prepare all personnel,equipment and materials for demobilization. Photographically document. RIG Down Move Off(RDMO). RDMO once clearance has been given from the BLM. Photographically document. Contingency Plan: If unable to get down 7"casing or circulate up the 7"X 11-3/4"annulus to the minimum depth of 500' MD. 1. Pick up the wash string off of bottom. 2. Double check washing string length numbers. 3. Record all facts and figures. 4. Work and pull on Thermistor cable if able. 5. If sufficient footage has been made attempt to fish and pull thermistor cable. 6. If some progress is made,attempt to wash back down to bottom and continue thawing, attempt to clean out to minimum depth required. 7. If no progress. Contact BLM to discuss plan foreword. 8. If sufficient depth has been reached per BLM, and circulation has been obtained,cement at current TD depth per agreed upon plan. 9. If circulation is not achieved,plan to pull up hole and reshoot at agreed upon depth per BLM. Continue to heat 7"casing wellbore,work annulus and establish circulation 10. If depth is not sufficient,plan to cap the 7"wellbore with kill weight fluid. 11. Develop a plan with the BLM to secure and suspend the well. 12. Complete the current wellbore per required agreement. 13. Secure and suspend or plug and abandon well,per agreed upon plan. • • South Barrow Core Test 2 As Is Votco Grey?Master valve � r ib 425 GOrxtuctor 'MM F Sot Co 69ma,tva 1}' N`Ti 11-314",42%and 474,8 rd,casing C=0.1193 bpf r A" Top of 7-or Long String to surface D=0.0148 Dpi Could be 7"to surface.Drawing Ou LD.=11.084" t Low pressure? c r al "4 411-314',474,J-56 @ 960'md/lvd x 8rd,Rge 2 casing 00 c 9' 7",230,J-55,Rge 2,Ord casing Set at 2,260'md'tvd i 4+ 7",234,J-55,Rge 2 casing o ra r r• C=0.0394bp1 ; D=0.0082 bpf -o 4 I.D.=6.336" 5-112".174,J-55 C=0.0232 bpt D=0.0061 bpf I.D.=4.892" 280"of 5-1/2",17ppf,J-65,liner ■ Illf Perforations:2,282'-2,402'=1201p 2.473'-2,604'=311p se T.D. = 2,505' mditvd • "r. . • ,rt.,, 41:•,,—. .� FIGURE 9 • 41) South Barrow Core Test#2 As Left Diagram South Barrow Core Tect 1t2 r 16",42*Conductor a Set @ 69'md?tvd 11-304",42#and 474,8rd,casing • ' v i ... 500'of Arctic Set Cement circulate C=0.1133 bpf ? Surface to Surface D=0 0148 bpf Down 11-304"X 7"Annulus up 7" I.D.=11.084" 11-304",474,.1-55 @ 360'mdltvd 8rd,Rgc 2 caning A C 7" 2311,.1-55,Rgc 2,8rd casing 0 Set at 2,260'md?tvd IV 7",234,J-55,Rge 2 casing = C=0.0334 bpf 1 D=0.0082 bpf I.O.=6.336" ;a O C N $ 2 a a 5-102",17#,.1-55 C=0.0232 bpf D=O.0061bpf I.D.=4.892' 280"of 5-102",17ppf,.1-55,liner ■ Perforations:2,282'-2,402'=120fp 2,473'-2,504'=31fp T D = 2,505' mcittvd Figure 11 • . South Barrow Core Test 12 BOP Sistem: 7"Pitcher Nipple @ 4' a-- 1"Plate False Table Total height 16'2— Pitcher Nipple Assembly Flow Line Jet—.„y Hole Fill--...._ y B a i. le-- Floor Safety Valve 111 4"BOP Assy 2'6" — 4",5,000 Wireline BOP Dressed with 1.315"Rams —t INN 3"Full Opening Valve Assy 1'2" 0•�4 • 3".3,000 psi Full Opening Valve s I .T.-T. . Mud Cross 2'4" .. , , .. 3",3,000 psi Mud Cross 11 *'4!It IlMill ® ® SOS SW 2",3,000 psi Lo Torque Valves .. „ 2",3,000 psi La Torque Valves • 'aosti� w 3",3,000 psi Full Opening Valve 3"FOV 1'2" ..�► 3"OSA 1'6" . P.14010011111. . �. : • I Olgoonik Corporation 3201 C Street, Suite 700 Anchorage, Alaska 99503 !OC) — Tel: 907.562.8728 Fax: 907.562.8751 www.olgoonik.com South Barrow Core Test#2 REQUEST FOR VARIANCE#2 Olgoonik Construction Services("OCS") respectfully requests a variance from the minimum standards for well control equipment for the plug and abandonment of well South Barrow Core Test#2 located in Barrow, Alaska. Background South Barrow Core Test#2 is a Point Barrow, North Slope legacy well that was drilled in 1949. This well produced up to 500M cfpd at 1,020 psi at its' high point. The well caught fire on April 15th, 1950 and was abandoned. The object of this well was to test a structural trap formed by faults in the Barrow Arch. The BLM has determined that the current well house and 10" Rat-hole pose no risk to Barrow residents. This wellbore was not properly plugged when left in its' current condition. Formations of note while drilling this well were, the Gubik, Grandstand and Topaguruk. Fair to good gas shows were observed Pebble shale unit and Barrow sands. No usable surface or subsurface water were noted. Presently there is a Shaffer wellhead with a 4" Hughes master valve on top, which is open to the atmosphere with a Thermistor cable sticking out. At present there is a 16", 60#conductor set at -69' MD. The surface casing string is 11-3/4" set at-960' MD., a 7"casing long string was set at 2,260' MD. and 280' of 5-1/2" liner is set at 2,505' MD. There is a wellhead associated with this well and it is capped with a damaged 4" Hughes master valve that is open to the atmosphere with a Thermistor cable protruding out the top. The lower outer annulus casing spool kill side port is open to the atmosphere with ice buildup visible through the port. No tubing is recorded in the hole. An impression block was run and noted collapsed 7"casing at 585' MD. This would indicate the 11-3/4" casing string is also collapsed. This well was abandoned with the original drilling mud (12.0 ppg) left in the wellbore and on the backside. There is potential to thaw down onto barite sag. 1) Information as to circumstances which warrant approval of the variance from the Well Control Requirements at Section III,A.1 of 43 CFR 3160 Onshore Oil and Gas Order No.2. • There is a wellhead associated with this well. • The casing string consists of; a 16", 60#conductor set at-69' MD. The surface casing string is 11-3/4"set at-960' MD., a 7"casing long string was set at 2,260' MD. and 280' of 5-1/2" liner is set at 2,505' MD. • BLM (report 127 May 2013), Surface risk risk assessment: Low, because the site does not pose a travel risk to local residents because of its' proximity to other infrastructure in the area. • Ground water resource not present. • There are no cement plugs in the wellbore. • The well was left to freeze with = or >12.0 ppg mud in the 11-3/4" X 7" outer annulus and 7" casing long string. • The 11-3/4" surface casing was run and cemented with 1330 sx of 1947 construction type cement. • BLM (report 127 May 2013), Subsurface risk: Moderate, no "Fresh water aquifer present" but gas was produced and gas shows are documented from downhole at a maximum achieved rate of 500,000 cfpd at 1,020 psi • • 2) Proposed alternative methods by which minimum standards are to be satisfied. • OCS believes that a balanced 250' column of 14.5 ppg to 14.8 ppg permafrost C cement would sufficiently meet the minimum requirements for a balanced kill weight surface cement plug in the 11-3/4" X 7" outer annulus and 7"casing long string. • Top of the perforations is noted as 2,282' MD. • Considering a hydrostatic pressure at the top of the perforations with a 12.0 ppg column at 2,032' (1,268 psi)and a 250'cement column of 14.5 ppg or greater(188 psi or greater)exerts a total hydrostatic pressure at the top of the perforations of 1,456 psi. This hydrostatic pressure is more than adequate to obtain the minimum kill weight cement plug standard. • OCS believes that the noted collapsed 7" casing and most likely collapsed 11-3/4" casing are addition barriers to pressure from below. Special attention will be paid to any potential well control situation. • 60 bbls of used and new NaCI brine at 9.8 ppg will be made up to start this well. • Enough NaCI salt will be available on the edge of the location to mix an additional 350 bbls of 9.8 ppg NaCI brine. • Enough water and dry mud products will be onsite to mix up 100 bbls of 12.5 ppg water based Gel/Barite mud should any situation arise. • After a successful pressure test of the complete BOPE system including all safety valves, OCS will pick up and circulate/steam down through the 7"wellbore, steaming/circulating washing to 250' MD. OCS will then circulate/steam a minimum of two bottoms up assuring a thawed casing wellbore and an indication of thermal transmission on the backside. • The 7"casing will be perforated and communication will be established between the 7"wellbore and the 7" X 11-3/4" outer annulus. • Once the outer annulus has thawed, the wellbore and outer annulus will then be cemented surface to surface. This will be sufficient to successfully plug and abandon South Barrow Core Test#2. • All other abandonment criteria set out in 43 CFR 3160 Onshore Oil and Gas Order No. 2 will be met and surface remediation will commence. Changes to procedure: • Step 9 of the(MIRU) approved South Barrow#2 Plug and Abandon Procedure will be modified as follows, change mix 100 bbls of brine to 60 bbls of 9.8 ppg brine. • Step 10 of the(MIRU)approved South Barrow#2 Plug and Abandon Procedure will be modified as follows, change notification to 72 hours. • Step 4 of the(P &A) approved South Barrow#2 Plug and Abandon Procedure will be modified as follows, change 500'to 250'. • Step 10 of the(P&A)approved South Barrow#2 Plug and Abandon Procedure will be modified as follows, change 500' to 250'. • Step 26 of the(P&A)approved South Barrow#2 Plug and Abandon Procedure will be modified as follows, change mix 100 bbls to 60 bbls of 9.8 ppg NaCI brine. • Step 27 of the(P&A)approved South Barrow#2 Plug and Abandon Procedure will be modified as follows, change batch mix 65 bbls of cement for 500' to batch mix 30 bbls for 250', and cement density from 14.8 ppg to 14.5 to 14.8 ppg cement. Down hole volume is changed from '56 bbls to 30 bbls. • Step 29 of the(P&A)approved South Barrow#2 Plug and Abandon Procedure will be modified as follows, change from new clean brine to used 9.8 ppg brine. • Contingency plan will be changed from if unable to get down to 500' to unable to get down to 250' MD. Page 2 of 2 o>r r • THE STATE Department of Environmental 011-1LASKL'1 GOVERNOR SEAN PARNELL RECEIVED FEB 0 7 2014 February 4, 2014 A0GCC Certified Mail, Return Receipt Requested Article No.: 7012 2210 0002 1216 2391 Wayne Svejnoha BLM — Division of Resources 222 W 7th Ave, #13 Anchorage, Alaska 99513 Conservation Division of Spill Prevention and Response Contaminated Sites Program File: 320.38.010 SCANNED 0 2 2014 Re: Potentiall Responsible Party Notice Letter and Information Request NPRA Legacy Wells - General Hazard ID: 26125 Ledger Code: 14339387 Dear Mr. Svejnoha: 610 University Ave. Fairbanks, Alaska 99709-3643 Main: 907.451.2181 Fax: 907.451.5105 This letter is to advise you that the Alaska Department of Environmental Conservation (ADEC) has identified the 136 legacy wells within the National Petroleum Reserve in Alaska (NPRA) as potential contaminated sites. Some of these wells require extensive cleanup of oil and other hazardous substances released to the environment. Since you are identified as a current or past owner and/or operator of these sites, please be advised you may be financially responsible or liable for the investigation and /or cleanup of any hazardous substance contamination that might be present. Alaska Statute 46.03.822 establishes who is liable for contamination. Records available to the ADEC indicate that you meet one or more of the following criteria: » owned or controlled the hazardous substance at the time of its release; » own(ed) or operate(d) the property or facility from which the release occurred; » owned or operated property at which the hazardous substance came to be located; and » arranged for transport, disposal or treatment of hazardous substances that were released. Site History From 1944 through 1982 the US Government drilled 136 wells to explore for oil and gas resources in the NPRA. It is our understanding that other federal agencies and some private companies may have operated or managed these sites in the past. We have also been informed that 23 of these well have been conveyed to public and private entities. The ADEC currently lists 14 of the 136 legacy wells on our database of contaminated sites. The Bureau of Land Management (BLM) is identified as the responsible party for the following sites. Wayne Svejnoha 0 2 February 4, 2014 • BLM Cape Halkett Drill Site (File # 300.38.108) • BLM East Simpson #2 (File # 300.38.109) • BLM East Teshekpuk Drill Site (File # 300.38.110) The U.S. Army Corps of Engineers, under the Formerly Used Defense Sites program, is working with ADEC under the Defense States Memorandum of Agreement on cleanup actions at the 11 Umiat test well sites. BLM is identified as the landowner in our records, and as such is identified as a potentially responsible party in addition to the Department of Defense: C Umiat Test Wells 1-11 (File # 335.38.001) The information contained in these files is part of the public record. Our databases are accessible on the Internet at: http://dec.alaska.gov/spar/csp/db_search.httn Additional Actions Needed ADEC sent a letter on July 11, 2013, identifying an additional 15 legacy well sites with confirmed releases (enclosed). As stated in the letter, ADEC recommends that BLM develop a plan to address known, suspected, and unknown releases at the legacy well sites, in coordination with the appropriate regulatory agencies. We expected a response to this letter before now. Please respond to this letter within 30 days. After we receive and review your response we will determine what additional actions will be taken regarding each site with known or suspected contamination. In addition, with your response, please complete and return the enclosed questionnaire requesting more information about past operators. In accordance with Alaska Statute Title 46, ADEC is authorized to provide regulatory oversight for any contamination response efforts initiated by the responsible party. However, if response actions by the responsible party are not satisfactory to ADEC, we may then assume the lead role in the investigation and cleanup efforts. In the event that State response actions are necessary, the responsible parties may be held financially liable for any response actions taken by the State. Alaska Statutes 46.04.010 and 46.08.070 establish cost recovery procedures for certain costs, including oversight activities, incurred by the State in responding to pollution incidents. If you are determined to be a responsible or liable party, ADEC may bill you at a later date for our expenditures associated with this pollution incident. Expenses for which we may seek reimbursement include: Staff time associated with general or technical assistance; work plan review; project oversight; general project management; legal services; interest; travel; equipment and supplies; and any contracting costs. Pursuant to Alaska Statute 46.08.075, the State may also file liens against all property owned by a person who is responsible or liable for State expenditures. Please respond in writing within thirty (30) days from the date of this letter addressing your intended actions with respect to this pollution incident. If you believe someone else is responsible for this pollution incident (e.g., a past owner or operation of the site) or if you have any questions concerning this matter, please contact Mr. Fred Vreeman at (907) 451-2181. The attached "ADEC Information Request" describes the minimum information expected in your response. Additional information may needed to evaluate the risks and responses required at each legacy well site. Sincerely, Fred Vreeman Environmental Program Manager G:\SPAR\CS\Contaminated Site Files (38)\320 National Petro Reserve Area\320.38.010 NPRA Legacy Wells General\2-2-2014 Letter\PRP Letter All Wells.docx Wayne Sveinoha Enclosure: 0 3 • ADEC Information Request Concerning Contaminated Sites BLM Legacy Wells Dispute letter date July 11, 2013 February 4, 2014 cc: Bud Cribley, Director, Bureau of Land Management Steven Cohn, Deputy Director, Bureau of Land Management Jolie Pollet, Branch Chief, Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer, Bureau of Land Management Larry Hartig, Commissioner, Alaska Department of Environmental Conservation Lynn Kent, Deputy Commissioner, Alaska Department of Environmental Conservation Kristen Ryan, Director, Alaska Department of Environmental Conservation Lori Aldrich, Program Manager, Alaska Department of Environmental Conservation Steve Bainbridge, Program Manager, Alaska Department of Environmental Conservation Jennifer Roberts, Program Manager, Alaska Department of Environmental Conservation ADEC Response Fund Administration GASPAR\CS\Contarr nmted Site Files (38)\320 National Petro Reserve Area\320.38.010 NPRA Legacy Wells General\2-2-2014 Letter\PRP Letter All Wells.docx 0 0 ADEC INFORMATION REQUEST Concerning a contaminated site(s) Re: Legacy Well Sites in and near the National Petroleum Reserve, Alaska (NPRA) Please precede each answer with the number of the question to which it corresponds. Please direct any questions concerning this information request to Fred Vreeman, Contaminated Sites Program, 610 University Avenue, Fairbanks, AK 99709; Phone: 907-451-2181. Thank you for your cooperation. 1. Provide name and company affiliation of the person answering the questionnaire. 2. Provide copies of all studies, reports, and supporting information (including preaquisition assessments and work done on behalf of other parties) which you have knowledge of which address past and/or present environmental conditions at the site. Identify the name, title, address, and phone number of the party(s) who are responsible for preparing the studies or information. Information which has been previously submitted to ADEC need not be submitted again (unless specifically requested in a subsequent communication) if you can provide the name of the office (and name and title of the DEC officer if known) to whom the report was previously provided. 3. Provide a description of any ongoing or planned investigations or cleanup work at the site. Identify the names, titles and phone numbers of the individuals responsible for preparing the studies or information. 4. Provide a description of known releases at the site (date of occurrence, quantity released, type of substance released, etc.) and a description of corrective measures that were taken. Provide information on any suspected releases which may have or are occurring. 5. Describe the nature of past and present operations at the site. In particular, any actions that may have caused the release or threat of release at the site. Describe the physical characteristics of the site including major structures, water wells, fuel or waste storage systems, drainage or septic systems, etc. 6. Provide a list of any permits issued by the Department which relate to activities at the site and a list of RCRA identification numbers (U.S. EPA identification numbers) which may be held. 7. Identify persons to whom you leased all or a portion of the property and describe the nature of their operations. 8. Identify the person(s) who used the site for disposal of substances deposited there, if any. 9. Provide copies of manifests for any hazardous waste and/or petroleum contaminated materials taken to or from the site. 10. Provide a list of persons and their phone numbers and addresses of persons who have knowledge about the use of hazardous substances at the site. 11. Provide information regarding the existence of insurance coverage for damages resulting from releases of hazardous substances and copies of all such insurance policies, both currently in effect and in effect during the periods of activity in question. 12. Describe the acts or omissions of any person, other than your employees, agents, or those persons with whom you had a contractual relationship, that may have caused the release or threat of release of hazardous substances at the site. a. In addition, describe all precautions that you took against foreseeable acts or omissions of any such third parties. 13. Describe the care you exercised with respect to the hazardous substances found at the site. 14. Describe the physical characteristics of the site including structures, wells, drainage systems, etc. THE STATE July 11, 2013 'ALASKA GOVERNOR SEAN PARNELL Wayne Svejnoha Supervisory Minerals & Energy Specialist 222 W 7th Avenue, #13 Anchorage, Alaska 99513 Re: BLM Legacy Wells Dispute Dear Mr. Svejnoha: Department of Environmental Conservation Division of Spill Prevention and Response Contaminated Sites Program 610 University Ave. Fairbanks, Alaska 99709-3643 Main: 907.451.2181 Fax: 907.451.2155 The Alaska Department of Environmental Conservation (ADEC) — Contaminated Sites has reviewed the National Petroleum Reserve in Alaska: 2013 Legacy Wells Summary Report dated February 2013, containing updated information on the status of the 136 Legacy Wells located in the National Petroleum Reserve — Alaska (NPR -A), and the draft National Petroleum Reserve in Alaslm. 2013 Legacy Weiss Strategic Plan dated May 2013. ADEC has also reviewed the response by the Alaska Oil and Gas Conservation Commission (AOGC). We concur with the response by ACIGC and have no further comment regarding the priorities. We do have comments about the investigation and cleanup plans presented in the report. With this letter we arc outlining regulatory requirements related to the environmental work that is proposed and required as part of these cleanups. ADEC is concerned that the 2013 Legacy Wells Strategic Plan prepared by the BLM does not include either assessment of the contingency for assessment of known, likely, or unknown but possible contaminant releases. In addition, BLM plans for surface cleanup of these wells should be made clear in the plan. At least one of these legacy wells has extensive PCB contamination and has resulted in a multi-year cleanup totaling tens of millions of dollars. At others, solid waste disposal practices have resulted in releases to the environment with estimated cleanup costs in the hundreds of millions. Known releases documented in the records we reviewed include crude oil, gasses, refined oil and fuel, drilling fluids that include various organics, metals, and other chemicals, and unknown contaminants from drums and other containers observed to be damaged and abandoned at the various well sites. There are 13 legacy well sites with known releases currently on the DEC contaminated sites list. Many of these are in the process of being addressed, cleaned up, and closed. From our Waited records review there are 15 additional legacy well sites with confirmed releases. These should be prioritized for initial records reviews and then added to the BLM contaminated sites list under our cooperative agreement. Suspected releases include fuel releases from operations, storage, and fuel spills at the sites, impacts to various surface water bodies from spilled fluids during drilling and breaches of containment at reserve and flare pits, continued surface runoff from drilling fluids uncontained at several sites, and down -hole substances that were ejected from the holes over time or during blowouts or drilling operations. 1 Wayne Sve noha ? July 11, 2013 Y The.BLN-1 plan to address these known, suspected, and unknown releases at legacy well sites is notably absent from the documents presented to date. The three primary regulatory agencies that need to be involved in the plan are ADEC — Contaminated Sites, Alaska Oil & Gas Conservation Commission, and ADEC — EH/Solid Waste. Other agencies will need to be consulted. as well. Below we provide recommendations for a coordinated plan using the Uniform Federal Policy for Quality Assurance Project Plans (UFP-QAPP) that will involve all of the regulatory agencies in one coordinated manner. This will allow BLM to address these sites in a consistent and coordinated project which fulfills all of the regulatory requirements so that the sites do not need to be re -visited in the fu=e xvhen they are closed after this project. Attached are our comments on each specific well. The acronyms used on the list include terms that are typically used in a CERCLA type investigation however they are also suitable for investigations conducted under the State of Alaska cleanup rules. These include the following; Historical Records Review (HRR) 'chis is recommended for almost all of the well sites. Much of the information required for these reviews is already contained in various reports and appendices or in BLM files. The Historical Records Review should document the type of releases that might have occurred from drilling operations as well as historical use of the site, and should capture all available information on the drilling fluids used and any product produced or released. Preliminary Assessment (PA) This is recommended for almost all of the well sites. A Preliminary Assessment is a limited scope investigation that provides an assessment of information about a site and its surrounding area to distinguish between sites that pose little or no threat to human health or the environment and sites that require further investigation. The PA is a CERCLA defined document and typically does not require sampling. Site Inspection (SI) If the PA recommends further investigation, then an SI is necessary. The SI is a CERCLA defined document, and it is analogous to an initial report of contamination under state cleanup rules. On some legacy well drillings sites it is evident now that an Sl is required just from a review of the reports. An SI investigation typically includes the collection of samples to determine what contaminants are present at the site and whether they are being released into the environment. An approved site specific workplan is required under both CERCL-A and 18 AAC 75 prior to SI sampling. The SI typically is not intended to develop a full site characterization, but is limited to determining the presence or absence of a release. If contamination is found after completion of the HRR, PA, and SI then a RI/FS under CERCLA, or a Site Characte-rizatiowlteportandcleanup-Alas,under-l-fi-AAC7iis`required. -- ----- - -- — --------- - DEC recommends that BLM incorporate into the strategic pian the processes outlined in this letter. A team of agencies composed of AOGC, DEC -CS, EPA as required, and DEC -EH should address regulatory and technical requirements for these well closures. By cooperating and working together with the regulatory agencies BLM will save time and expense, and regulatory uncertainties will be avoided. The strategic plan should reference a project to prepare a generic workplan. DEC suggests that BLM utilize the generic UFP-QAPP workplan format for the required environmental work. If properly prepared, the workplan could encompass most of the investigations and cleanups required at these sites over multiple years. At other multi -site projects we have found this to be an effective way to reduce uncertainties and risk in these types of investigations. A very small site specific FSP could then be developed as BLM approaches each drilling site. Regulatory decisions made during workplan development would provide more certainty in the planning process for cleanups. G:\SPAR\CS\federal F2cilitie3\Ci%ih2n 1-cdcrrt Agr=ics\DOl\B[.nl\1'roiens\lxgAey Wells\7 11 13 Luter to KIN on lxbxy wells.doex Wayne Svejnoha 3 0 July 11, 2013 Please review the attached list of specific sites. If you have any questions, please do not hesitate to call me at 907-451-2181 or by email at fred.vreeman@alaska.gov. I look forward to working with you as the Federal Government fulfills its requirement to clean up these well drilling sites in Alaska. Sincerely, y' Fred Vreeman Environmental Program Manager Enclosure: SPAR Response with Legacy Wells cc: Bud Cribley, State Director, Bureau of Land Management Steven Cohn, Deputy State Director for Resources, Bureau of Land Management Jolie Pollet, Branch Chief, Bureau of Land Management Robert Brumbaugh, Geologist, Bureau of Land Management Michael McCrum, Environmental Engineer, Bureau of Land Management Cathy Foerster, Commissioner, Alaska Oil and Gas Conservation Commission Larry Hartig, Commissioner, Alaska Department of Environmental Conservation Kristen Ryan, Director, ADEC Division of Spill Prevention and Response Steve Bainbridge, Program Manager, ADEC Contaminated Sites Program Jennifer Roberts, Program Manager, ADEC Contaminated Sites Program GASI'AR\CS\Fedcrrl Fo61ibLy\Gvi6n Falctul AgcnnCs\DOI\BI.N1\Proitcts\lA'6.1' q W03\7 11 1314tur to Aim\I on Ug2cy Wclls.doex Well Name operator I RP I Land Simpson Core Test #5 1! Na 1 BLM Simpson Core Test #6 US Na I BLM Simpson Core Test #7 us Na 1 Bl. M Sin son Core Test 98 US Navy 113LM Si son Core Test #9 U5 Na I BLM Sinwson Core Test #1f) U.S Navy! BLM Core Test #11 AOGCC Subsurlaca I BLM Core Test #12 FUSNa a I BLM Core Test #16 a 18LM Core Test #17 US Na 1 BLM Core Test 018 US Na I BLM Core Test #19 US Na 1 BLM t Core Test #20 US Navy 1 BLM i Gore Test #21 2S Na 1 BLM I Core Test #22 US Na 111•LM I Core Test dnlf fluids left in hole i BLM Core Test �#2vy I BLhA n CareTest #25 US Na Y I BLM K Core #1 US Navy i BLM 1 -t- *1 SPAR Response with Legacy Wells Lisl.xlsx 2013 Risk Ity CSP Status I Fito tllHazid Rolea5e7 Nnne None IYOMWil Low RNooe ane Nona Unused, Unused. I None Unused, i None Uncased, None None None None (None Unknown Unknown Page 1 of 14 •I AOGCC Subsurlaca AOGCC Surface SPAR W arkgroup Notes Status Status Need HRR, PA, S1 no data no data Need HRR. PA. SI no data no data Need PA ind drill fluid assessnsenl & workplan drillin 11uids left in hole no data Need PA ind drill fluid assessment & work an drilling fluids left in hole no data Need PA incl drill Ifusd assessment & work Ian dnlf fluids left in hole no data Need PA nc drill fluid assessmcnf &work Ian dnllxs fluids left rn hale no data well skc-lch provided by Need PA ind drill fluid BLM not consistent with assessment & work Ian AOGCC or BLM data no data Need PA ind drill fluid assessment & work Ian dnflin fluids left in hole no data Need PA and 51 ind 13611 fluid assessment. workplan rid sampling stressed debfis, partially as blowout and fire rove elated site areas Need PA incl drill fluid assessment & workplan dn lling fluids left in hole no data geed PA ind drill fluid assessment & wOTk Ian drij I ing fluids teff in hole no data Need PA incl dfifl nutd assessment & work Ian drillin fluids left m holo no data Need PA incl drill fluid assessment & work Ian drillin ituids left in hole no data Need HRR. PA, SI no data no data Need PA incl drill fluid assessment & work Ian drillin fluids felt in hole ria data Need PA incl dnll fluid assessment & work larx drillin fluids left in hole no data Need PA incl drill fluid assessment & work Ian drillin fluids Teff in hole no data Need PA ind dnll fluid drflfing fluids and ball assessment & work len peen hammer left in hole no data overshot, drill collar, rock revegelated —131 Need HRR, PA bit, and N -reds left in hole can't find it Review Report as PA. No evidence of sheen, stressed veg, or drilling Not abandoned, waste on surface. Veg ----_— , ,raw,, plunaed to surface site not cleared •I SPAR Response with Legacy Wells LisLxlsx Page 2 of 14 is • vi nce o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator I RP I Land Mgr Priority CSP Status file #IHazid Release? SPAR Workgroup Notes Status Status plugging operations inadequate and Wellhead tell as Umiat 43 US Navy I BLM I FUDS None pending dos 335.38.00113092 Yes. see file 'Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umiat #4 US Navy I BLM / FUDS None pending dos 335.38.001!3079 Yes, see file Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umial 98 US NaMy I BLM I FUDS None pendinq dos 335.38.001/3D81 'Yes, see_ _file Plugged BLM in 2004 incomplete historic sile? plugging operations inadequate and Wellhead left as Umiat #1'0 US Navyj BLM_I FUDS None pendingdos 335.38.00113082 Yes, see fila Plu ed by BLM in 2004 incomplete historic site? Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 7868'. Drilling Cleanup. Photos - evidence mud and diesel to Awuna #1 USGS I BLM Medium None None Yes of erosion into lake surface. > 100 _Pylons Need HRR, PA, SI with sampling. Drilling mud Wood , metal, assessment. Surface Plugged to 2039'. Diesel plastic debris. Fast Simpson #1 USGS I BLM Low None None Yes Cleanup. to surface. >10D Pylons Need HRR, PA, SI with Wood and metal Drilling mud assessment debris. Pylons - Photos straw areas of no Plugged to 2047'. Diesel Tankage for lk ' #1 USGS / 8LM Low None None Yes ve elation. to surface. flammable fluids Need HRR. PA, SI wdh sampling. Drilling mud assessment. Surface Plugged to 1400'. Drilling Wood and metal Koluktak #1 USGS I BLM Low None None LYes Cleanup. mud & diesel to surface debris Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 1894'. Diesel Wood and metal Ku am 91 USGS I BLM Low None None Unknown Cleanup. to surface debris. Pylons Need HRR, PA, Sl with sampling_ Drilling mud assessment_ Surface Plugged to 4464'. Drilling Wood & metal Kuyanak #1 USGS I BLM Low None None Yes Clean mud & diesel to surface debris. Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Photos show Plugged to 1840'. Diesel Plastic and metal Lisburne 41 USGS I BLM Low None None Yes stained soil to surface debris. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 8192'. Drilling Wood and metal North Iii ok $1 USGS I BLM Low None INone Yes Cleanup. mud & diesel to surface debris - Page 2 of 14 is • Well Name Peard South Meade #1 1 RP 1 Land 1BLM BLM #1 4USGS ! BLM SPAR Response with Legacy Wells Usl.xlsx ;013 Risk &W CSP Status File XlHazkl T Page 3 of 14 AOGCC Subsurface AOGCC Surface WAR Workgroup Notes Status r Status � deed HERR, PA SI with iampling. Dining mud rssessment- Surface ;leanup. Site photos show areas of stressed iegetalion. No issues Plugged to 2232'. Diesel Wood and metal soled in USGS re ort. to surface debris. Pylons Need HRR, PA, SI with sampling_ Drilling mud assessment Surface Plugged to 2026'. Diesel Wood and metal Cleanup. to surface debris. P Ions Add to She list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Od reported bubbling to the surface within reserve pit in 1982. Oily residue and sheen observed adjacent to east side of reserve pil, down hole material at the Plugged to 1875. Diesel Wood and metal surface to surface debris. P ons Add to Site list. Need HRR, PA, S) with sampl'uig. Drilling mud assessment - Surface Cleanup. Reserve pit berm had breaches anowirrg water to exit. Oil - stained sediment was observed above the Plugged to 1478'. Diesel Wood and metal waterline of the I. to surface debris. Site photos may show hydrocarbon sheen on Plugged to 2600'. Drilling Wood and metal water in well cellar mud & diesel to surface debris. Pylons Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Berms have been breached an allow water to flow out of reserve piUllare pit. Rising bubbles of ail observed in Hare pit 1484. Photos Show Plugged to 1825'. Diesel Metal debris. ra.. v-1 v.nnnralinn to Surface ... 0 •I SPAR Response with Legacy Wells Lisl.xlsx Page 4 of 114 0 0 vi encs o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator 1 RP f Land Mgr Priority CSP Status File #fHazld Release? SPAR Workgroup Motes Status Status Need HRR, PA, Sl wrlh sampling. Drilling mud assessment Surface Cleanup. Breaches in bemi allow water to flow into and out of reserve pit, sheen on Plugged to 2700' Diesel Wood and metal West Dease #1 USGS l BLM Low Nona None Yes surface water in well cellar to surface debns. Pylons Add to Site list. Need HRR,. PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Water flows into the pits through breaches on the eastern berm and out of the pits through breaches on the northern and western berms. Downhole material Plugged to 228'9'. Drilling Wood and metal South Harrison Bay #1 USGS f BLAB Low None None es Present at surface mud & diesel to surface debris. Add to Site list. Need HRR, PA, SI with sampliing. Drilling mud assessment. Surface Cleanup. Stressed vegetation noted and apparent in site pholos. Plugged to 2443'. Drilling West Fish Creek #1 USGS 1 BLM Low None None Yes Drilling mud around well mud & diesel to surface Pylons Need HRR, PA, SI with sampling. Drilling mud assessment, Surface Cleanup. High TPH Plugged to 1977'_ Drilling wellhead sticking concentrations underneath mud under plugs. Diesel up. Wood debris. Fast Simpson #2 USGS 1 BLM I Low _ Active 300.38.10912691 Yes, see file the rig inundation to surface Pylons South Barrow 94 US NavyiNorth Slope Bono None None None Unknown Need Surface Status completed gas well - no data South Barrow #5 USAF - BLM Unknown None None None. Unknown Need Surface Status completed gas well no data South Barrow #& US Na /Norlh Sto Burg None None None Unknown Need HRR, PA, St no data no data South Barrow #9 US NavyfNarih Slop2 Boro None None None Unknown Need HRR, PA, Sl no data no data _ South Barrow #10 US Navyfflorlh Sto Bora None None None Unknown Need Surface Status com ted gas well no data South Barrow It12 US Na /North Slope Baro None None None Unknown Need HRR, PA. Sl no data no data BLM well skMh not consistent with AOGCC South Barrow #14 US NavyMorth Sloe Boro None None one Unknown Nsed HRR. PA, St data no data Need PA ind drill fluid well left filled with drilling South Barrow #16 US NavyiNotih Slope Bora None None None Unknown assessment & workplan mud and diesel no data Need PA incl drill !turd tubing in well. no perfs, Soulh Barrow 017 US Na /North Sloe 13ora None None None jUnknown assessment & work fan I unknown fluid, I no data Page 4 of 114 0 0 SPAR Response with Legacy Wells Lisl.xisx Page 5 of 14 •I E CYfuu .v v AOGCC Subsurface A Surlaco TEHILM T013 Risk CSP Stilus File #IHaaid Historic Rekeasa7 SFAR YUnrkgroup Nates 5latus at US $1<ntus Well Name flperatar f RP f Land Mgriority Unknown Need Surface Status corn feted as well no data 5aulh Barrow #18 US Na INorlh Slo a Bora None None None Unknown Need HRR, PA, St no data no data Walak a #1 USGS! Unknown None None None rsg 890`. Multiple cement plugs of unknown volume. Shallowest None None Unknown _ Need HRR, PA, SI SOD' no dada Gubik #1 US Na d Ur#cnown Low Add to Site list. Need HRR. PA. SI with sampling. csg Q SOD' Well blowout Drilling mud assessment. from zone al 1SOT during Surface Cleanup. Photos plugging operations show disturbed/ slashed Plugging never completed after blowout. no data Gub* #2 US Na ! Unknown Low None Nora es areas two downhole Dement plugs of unknown depth Mone None Unknown Need MR. PA. Sl and volume no data Grandstand #1 US Navy 1 Unknown None Add to Site list. Need HRR. PA, SI with sampling. Dnliing mud assessment. Surface Cleanup Sediment from the reserve pit was excavated and spread over the pad to drill a 2nd well at this location, Upon completion of the 2nd well. the sediment was pushed back into ft reserve pit.. Area does not appear to be revegetaling. perhaps from the presence property plugged but no of drilling mud at the data on abandonment None None Yes surface status no data W 7 Foran #1 " USGS I Unknown Low on Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Slressed vegetation, photos show plugged, but not open csg; metal & Active 306.3$.108f2689 Yes. see file site underwater abandoned at surface corwsele debris under 5' of water, Cape Halken #1 " US Na (Unknown Low None Unknown !Need HRR, PA. SI es to 27' open C_s Min a Veloei #1 U5 Na f t3LM one None csg @ 31" 280' of drill pipe, drill collar, and Core Unknown Need HRR. PA, SL barrel left rn hole. rove etaled Ournalik Core #i US Na / BLM None -No obsery None !None Page 5 of 14 •I E SPAR Response with Legacy Wells Lisi.xlsx Page 6 of 14 • • WI F3nCe Q BLM 2013 Risk Historic AOGCC Subsurface ADGCC Surface Well Name Operator t RP I Land Mgr Priority CSP Status File #IHazid Release? SPAR Workgroup Notes Status Status Need HRR, PA, Workplan for St with Sampling. Drilling Mud Assessment. Surface Cleanup. Photos show debris, stressed No csg. 15' of drift pipe Oumalik Caro #2 US Navy 1 ULM Low None None yes ve elation and rock hit left in hole. no data Need HRR, PA, Workplan for Si with Sampling open csg & other Drillip) Mud Assessment. piping sticking out Surface Cleanup_ Reports of ground; wood, of debris, drilling muds on melat, conciele Oumalik Core 011 US Navy 1 BLM Low None None Yes surface (__q to 9', debris open csg sticking out of ground; wood & metal 0umalik Core #12 US Navy I BLM Low None None No Need HRR, PA, SI no data —__—debris _„ debris buried by landslide. Need HRR, PA, St, Well not no dala on Sentinel Hill #1 US Navy 1 BLM Low None None Unknown ap panent in site Rholos Csq to 3t1'. underwater status Need IQR, PA, SI. No evidence of sheen, open crag slightly stressed veg, or drilling above ground waste on surface. Veg 37' of csg, drilling fluids level; wood and S imp son Core Test #1 US Navy 1 BLM Low None None No appears healthy lett in hole metal debris Need HRR, PA, St. No evidence of sheen, stressed veg, or drilling waste on surface_ Veg 76'01 Csg, drilling fluids Simpson Core Test #2 US Navy I BLM Low None None No appears healthy left in hate no data Need HRR, PA, Sl. No evidence of sheen, stressed veg, or drilling waste an surface. Veg 61' of csg, drilling fluids Sim sun Core Test #3 US Navy I BLM Low None None No appears healthy left in hole no data Need HRR, PA, St. No evidence of sheen, stressed veg, ordrilling waste on surface. Veg --60' of crag, drilling fluids Sim eson Core Test #4 US Nayy t BLM Low Norse None No apecars healthy left in hole no data Need HRR, PA, St. No evidence of sheen, stressed veg, or drilling waste on surface. Veg csg cemented @25% open csg sticking Songsoncore Test #13 US Na 1 BLM Low None None No appears health dritin fluids IeR in hole_ out of round Need HRR, PA, SI. Vegetated, no evidence of crag cemented @2D'; open csg sticking Simpson Core Test #14 US Navy ! BLM Low None None No release. drillin fluids left in hole out of ground Page 6 of 14 • • SPAR Response with Legacy Wells Lisl.xlsx ism son Core Fest #26 t=vrdence or Medium AOGCC Subsur(aen ADGGC Surface 13LM 2013 Risk CSP Status File WHazid Historic Retease7 SPAR Wwkgroup Notes Status Status Well Name operator r RP 1 Land Mgr Priority Unko Need HRR, PA. SL US Na ! $LM open casing None Nave Vegetated. no ev4dence of cog set shallow; drilling slicking nut of Low No release- fluids left in hole round Simpson Core Teri #14a US Na !BLM Low None None & weilhead slick Need HRR. PA, SI crude nil left in hole open casing Need HIR, PA, Workplan Vegetated, no e+wdence of csg cemented 12181; slicking out of openregd ng No release. drillingfluid left in hole round Simoson Care Tesl #15 US Na !BLM Low None None d wooden Oellar, Need HRR, PP, SL Sate a9 r�110'. dolling fluids wood 8 metal ism son Core Fest #26 US Na ! BLM Medium None None res Sim sen Core Test 027 US Na J 13LM IJone None None Unko Sim son Gore Test #28 US Na ! $LM Low None Nave Yes clmnnnn Core Tesl #29 US Navy! BLM Low Norte No No Simpson Core Test 030 US Na 1 !BLM Core Test #30a JUS,Navy 1 BLM Low `None Prone n Gore Test #31 JUS Navy/ BLM None Page 7o(14 photos appear to show oil at surface, from a natural csg Q 350'. Completed in oil seep, seep, also drilling mud in oil well Open perfs. At 1welhead sticking sacks on the tundra one lime capable of up_ metal debris PI u ed b BLM in 2004. unassisled flow. and rustingbarrels 'Need HRR, PA, St. Site photos appear to show Oil csg cemented at surface, from a natural @i02;dnllutg fluids nn oily ground; csg seep- Plugged by BLM in including diesel and & weilhead slick vin 20014 crude nil left in hole out of ground Need HIR, PA, Workplan for Sl with Sampling- openregd ng ❑rilling Mud Assessment . out grouunnd in Surface Cleanup. Site d wooden Oellar, photos appear to show a p le of drilling mud about a9 r�110'. dolling fluids wood 8 metal 160 feel tram the welt tell in hole debris. Solid waste Need HRR, PA, Sl_ No evidence of sheen, stressed veg, or dri" waste on surface. Veg csg cemented at 1S2'; open csg. Wood a ears healthy dnknq fluids lett in hole and metal debris Need HRR, PA, SI. frilling mud at surface. but well is also in the middle of a large in oil seep; Open oil seep and surrounded by cog sticking up; pooled oil. Plugged by BLNI csg cemented A150'; wood & metal ser Holes in 20514- drillin fluids left in hole detail on oily ground; tog Need HRR. PA, Sl. Well is wellhead slick in the middle of a large oil seep and surrounded by csg cemented at 100% out of ground. pooled oil. Plugged by 131. dulling mud left in hole. wellhead leaking see noses in 2004 gas blowout at 423' gas Need HRR, PA, St. Leaky valve replaced in 2001, little evidence of contamination following valva on city ground; reg replacement- Plugged by csg cemented at 100'; & wellhead stick see notes BLM in 20174 iddifing fluids, left in hole out o1 round SPAR Response with Legacy Wells List.xlsx Page 8 of 14 • • yr enco o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator f RP f Land Mgr Priority CSP Status File glHasid Release? SPAR Workgroup Notes Status Status Need HRR PA, Workplan csg Cemente=d al for Sl with Sampling. 1028', cement plugs a1 Drilling Mud Assessment. 6387' and 5520'. Fish in Surface Cleanup. Drilling hole, drilling fluids Iefs in No data. Open Simpson Test Welt #1 ak US Navy1 BLM Low None INone yes muds near wellhead hale casing Need HRR, PA, Workplan for Sl with Sampling. Dolling Mud Assessment. Surface Cleanup Also Wellhead sticking evidence of a natural seep- above ground, Tar sheens in the summer ST from 2552 to 3018. wood, melel, and months. BLM is concerned csg @2915. Slotted liner concrete debris. Fish Creek #1 US Navy I BLM Medium None None Yes about exposure to wildlife to TO. Completed oil well Rusting barrels Need HRR, PA, Workplan for SI with Sampling. rasing cemented at 48; Drilling Mud Assessment. gas 0mv and explosion Surface Cleanup. Small gas while drilling at 863'; hole leak in wellhead flange, will Filled with fresh water to Wolf Creek 91 US Navy f BLM Low None Nano No flow if the valve iso en 330' No data. csg cemented a[ 53';hole left tilted with fresh water, Wolf Creek 02 US Navy 1 BLM Low Noire Nona No Need HRR. PA. Sl. fish in hole csg cemented at 107'; No data bridge plugs from 1447 to 1735 and from 554 to Wolf Creek #3 US Nayy I BLM Low None None No Meed HRR, PA, SI. 661, No data Add to Site list. Need HRR, PA, SI with sampling. csg slicking out of Drilling mud assessment ground with wood Surface Cleanup. Sheen on plug on top; solid surface water in well cellar, csg cemented at 30'; drill waste; wood hundreds of drums indicate pipe, drilling mud and debris; about 200 Skull Cliff Core iesl #1 US NaMy I BLM High None None Yes polential for cornlamrna[ion diesel left in hole nisling barrels Need HRR, PA, SI. Two open csg, wood drums are floating on a building; pylons; pond near the well. csg cemented at 1000', wood & metal Kaolak 01 US Navy 1 BLM t ow None jNone lNo Potential for hurried landfill. fdriltingluidsieftin hole debris Page 8 of 14 • • SPAR Response with Legacy Wells Lisl.xlsx 181-11119013 Risk Well Name Operator f RP ! land Mgr Priorlty CSP Status File 1NHazid #1 1 U Navy 19LM #1 JUS Navy/ umatik Ill US Na I BLM Low None None as[ Oumalik #i US Na !BLM Low None None #1 N East Topagoruk #1 USN l BLM Kniteblade #1 US Navy l BLM Page 9 of 14 Subsurface `AOGCC Surface SPAR Workgroup Notes Status Add to Site list. Need HRR, PA, SI with sampling. open flange Q Drilling mud assessment. Surface Cleanup. Drilling Gas well. Open ports. ground level. Mud pile overgrown with Drilling fluids and Metal & wood v , etallon and lichen tubulars lett in hole debris Need HRR, PA, SI. No evidence of sheen, stressed veg, or drilling csg cemented at 502'; open casing slicking out of waste on surface. Veg plug at 3470 to 3511'; ground. Wood appears heall drilling nuids left in hole debris. Open casing below Add to Site list. Need HRR, ground level. PA, SI with sampling- Revegetated. Drilling mud assessment. Numerous metal Surface Cleanup. Debris csg partially cemented at I support structures and drilling muds. Stressed 2762'. Plug at 2543% slicking up. vegetation Dridin mud left in hole Concrete debris, plate welded to pipe: l' of pipe rsg cemented at 1100'. sticking up - Need HRR. PA. SI. Drig fluids left in hole Wooden debris. Add to Site list. Need HRR, PA, SI with sampling. Driving mud assessment. open csg broken Surface Cleanup. Downhole material present csg cemented at 6073'. off and sticking up: at surface, area mostly original hole drilled to wood, metal, revegetated. Diesel still 7154'& junk len; concrete and other occupies the ground sidetrack hole left wilh debris. rusting dreulatioir lines. drillina fluids barrel Add to Site list. Need HRR, PA, SI with sampling. Dolling mud assessment. Surface Cleanup. Pile of tsg 10 1100'; pkig al open casing drilling muds is next to the 1049% drilling mud below sticking up. Wood, teller. No offical reserve pit plug: unknown fluids in metal, and glass noted o en hole debris. open casing Need HRR, PA, SI. BLM sticking up. Wood, stales that there was no metal, and glass debris at this site in 2012. csg cemented at 420% debris - •I 0 SPAR Response with Legacy Welts Lisl.xlsx Paye 10 of 14 0 0 w once a BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator I RP f Land Mgr Priority CSP Status File #IHazid Release? SPAR Workgroup Notes Status v F Status open casing sticking up. Wood, metal, & concrete debris rusting Need NRR, PA, SI. Reports barrels. One indicate solid waste csg cemented to 45';fish marked flammable Knileblade #2 US Navy I BLM Low None None No drums in hole hazard. open casing slicking up; metal & Krideblade #2a US Navy 1 BLM Low None None No Need HRR, PA, SI. csq cemented at 38% concrete debris Need HRR, PA, SI including learning assessment. Site partially No wellhead. submerged intermittently csg cemented at 80; Metal. Solid waste North Simpson Test Wel 4 US N2n I BLM Low None None No during the summer dri0ing fluids left in hole ? No dala crude wellhead. Need HRR, PA, St. Surface csg cemented at 685'; Wood and metal Umiat 01 US Navy J BLM I FUDS Medium Cleanup co 335.38.00113090 Yes, see file Cleanup drillinq fluids left in bole debris No wellhead. Gravel pad partially csg cemented a1486; revegelaled wood Need HRR, PA, SI. Surface cement plug from 440 to debris and pipe Umiat #i t US Na I BLM I FURS Low pending dos 335.38.00113083 Yes, see file Clea 490'; sticking u csg cemented at 7206'; vVefNwad- Gravel various plugs from 8250' pad revegetaled 7 South Sirnpson 01 US Navy I BLM Low None None Yes Need HRR, PA, SI. to surface No data Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Large quantifies of ferrous oxide, zinc oxide, zinc carbonate, and barium sulfate were added to drilling muds. Stains apparent in photos. BLM field camp an site. Walls between the reserve and Pare pits have eroded. Wellhead and Water flows into surface gravel pad. ? No Wook #1 USGS I BLM Low lNone Name Yes water during break22L no data data Paye 10 of 14 0 0 SPAR Response with Legacy Wells Lrsl.xlsx BLM 2x13 Risk Well Name 10porator I RP I Land Mgr Priority CSP Status I File #IHazid Arca- Barrow Cure #1 US Na l til.M Avak 01 US Navy I BLM Barrow Bi R' #1 US Na I BLM Barrow Cafe Rig Test 91 US Na I BLM #2 I US Navy I BLM #1JUS N,a I BLM H' h NOr1e None Test Well #1 US Test Well #2 US Barrow Test Wetl #31115 Na IN©r1h Slo c Bora IAedium None None Unknown Page 11 of 14 Subsurface -FAOGCC Surface SPAR IWorkgfoup Notes Status _ ___ araiu5 Need HRR, PA, SI. Surface Cleanup, Photo CIMG0218 csg cemented at 53` shows area of disturbed tubing hung to 708': hole open casing vegetation that should be heft filled with drilling mud slicking up; wood & investi algid durin Sf and diesel metal debris open casing Need HRR. PA, St. Surface csg cemeoled at BIF. sticking up; wood & Cleanu-. lu set at 1348' metal debris Not abandoned, site not cleared, Need HRR, PA, SI. Surface open easing 7? No Cleanup no data data Not abandoned, site not eteared, Need HRR. PA, SI. 'Surface open casing 77 No Cteanu no data data Need HRR, PA, St with sampling. trilling mud assessment. Surface Cleanup. Drilling Muds on Not abandoned, site -slowly revegelatmg site not igred, More information on drilling open casing 7? No mud specifics rs being researched no data data Need 1lRR, PA, SI wdh sampling. Drilling mud wellhead leaking assessment. Surface cemented Csg to gas!? Wood & Cleanup- Cellar does not 1270;slotted liner to metal debris. Area retain water 1956': tbg to 1939 affected 50'x50' Need HRR, PA. SI. Drilling Csg cemented at mud assessment. Surface 441'.hole Iell willed with open pipe; metal & Cleanup- On mads stem water concmie debris Need HRR, PA, Sl. Drilling Csg cemented al 2260'; mud assessment- Surface periorated liner to TD. wood, metal & Cleariu . fln road s stem lin Completed well. Conerete debris Need HRR, PA, SI with sampling and workplan. Drilling mud assessment. Surface Cleanup. Drilling +csg cemented at 10461: open c5g slinking mud at surface. Sheen on hole left filled with drilling up; wood & metal surface wafer in well cell larQuids and wafer. de" 0 SPAR Response with Legacy Wells Lisl.xlsx Well Flame Operator I RP I Land Mgr BLM 201$ Risk Priority CSP Status File #ltiazid yr once oF— Historic Release? SPAR Workgroup Notes AOGCC Subsurface Salus g AOGCC Surface Status no data. Likely revegetaled. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Tess A US Navy I BLM None-uncased hc None None lUnknown Need HRR, PA. not in AOGCC database Monlht Meeting no data. Likely revegetated. Removed from our fist of wells of concern in < 50', no csg, no API#, October, 2012 Cumalik Foundalion Test b US Navy I BLM None-uncased hC None jNane Unknown Need HRR. PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed From our irsl of wells of Concern In < 50', no csg. no API#, October, 2012 Oumalik Foundation Test A US Navy I BLM None-uncased hc None lNone Unknown Need HRR. PA, not m AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no c5g. no APF#. Odubut. 2012 Oumalik Foundation Test A US Navy I BLM None-uncased ht Nune lNone Unknown Need HRR, PA, nal in AOGCC database Monthiv Meetin no data. Likely revegetaled. Removed from our Ilst of wells of con cam in < 501, no csg, no APi#. October, 2012 Oumatik Foundation Test 0 US NavyI BLM None-uncased hc None None Unknown Need HRR. PA, not in AOGCC database Moral Meeting no data. Likely revegetaled. Removed from our list of wells of concern in < 50', no csg. no API#, October, 2012 Ournalik Foundation Test 4US Navy I BLM None4xwased h_j None None Unknown I Need HRR. PA, not in AOGCC database Month Meetin Page 12 of 14 0 Page 13 of 14 SPAR Response with Legacy Wells LrsLxisx Well Name BLM 2013 Risk Operator f RP I Land Mgr Priority Historic CSP Status Fife #IHazld Rslease7 AOGCC subsurface Status �__ - -_-�� . A013CC Surface Status no dala. Likely SPAR 1Norkgroup Nates revegelaled. Removed from our list of wells of concern in < 50'. no csg, no AP IN, October, 2012 Oumalik Foundation Test US Na!q BLM None -encased h None None Unknown Need HRR. PA. not w AOGCC database MonthlyMeetin no data. Likely revegelated. Removed from our list of wells of concern in < 501. no csg, no API#, October, 2012 Oumalik Foundalion rest U5 Na I BLM None -encased h None None Unknown Need HRR, PA, not in AOGCC database Monihl lAeeli no data. Likely revegetaled. Removed from aur fist of wells of concern in 0urn alik Foundation Test US Na 18 LM None -encased fi None None ilnknown Need HRR. PA, < 50', no csg. no API#, not in AOGCC database October, 2012 Month! Meetin no data. Likely revegetated. Removed from our list of wells of concern In < 50', no csg, no API#, October, 2012 Oumalik Foundat'Gon Test US Na I BLM None encased h Nome None Unknown Need HRR, PA, not m AOGCC database Month! Meeting property abandoned per then -applicable South Banow #7 US NEILM 2LI None None Unknown Need HRR. PA, ro erl lu ed re s no data to support proper Um -Qt 02 US N Noire Pendin Clo 335.30.001/3078 Yes, see file Plu d to surface abandonment no data to support proper Uncal #5 Ummt #9 Urrval A66 Umial #T Atiaaru Point#1 U5 US US Na I BL M US Na I BLM USGS/BLM None Pendin Hi h -PCB cleanu Active None Pendia None tPendi Mane Clo 3L5 313.00113079 335.38.00113093 Cao 335.3$.00113080 Clo 335 38 001I3091 None Yes, see file Yes, see file Yes, see file Yes. see lite No Plu ed E4 surface property plugged and abandoned pfupedy plugged and abandoned property plugged and abandoned Need HRR. PA,Plugged by properly plugged and BLM in 2009. abandoned abandonment suriaoe site rcmediated surface site remediated suriacx V le remediated surface site re medialed Page 13 of 14 SPAR Response with Legacy Wells LrsLxlsx Page 14 of 14 0 vrcTon`ce o BLM 2813 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator i RP 1 Land Mgr Priority CSP Status File #fFlaxid Releases SPAR Workgroup Notes Status Status Add to Site list. Need HRR, PA. SI with workplan and sampling. Chilling mud assessment. Surface Cleanup. Two large breaches on the south side of the berm allow water out of the reserve pit. Plugged properly plugged and surface site Drew Point #1 USGS 1 BLM None None None Yes by BLM in 2410. abandoned remedialed On Site list Need HRR, PA, 51 with workplan and sampling. [frilling mud assessment. Surface Cleanup. In 1976 the reserve pit berm failed and dolling muds/cutlings were released onlo the Poe of Teshekpuk Lake. Plugged by BLM in 2008. Solid waste from camp aril drilling operations buried on northern portion of pad. Erosion has exposed solid properly plugged and surface site East Teshek uk #1 US Navy 1 BLM None Active - waits 3Q0.38.11012652 Ycs, see file waste. abandoned remediated Threatened by erosion. properly plugged and surface site J. W. Dalton $P USGS f BLM None None None No Plu ed b BLM in 20fl5. abandoned rernediated properly plugged and surface site South Barrow #8 USAF 1 BLM None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface sile South Bartow 911 US Na INorih Slope Bono None None None Unknown Need HRR, PA, abandoned remedialed properly plugged and surface site South Barrow 013 US Na lNerlh Slope Boro None None None Unknown Need HHR, PA, abandoned remedialed properly plugged and surface site South Barrow #15 US Na !North Sloe Boro None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface site South Barrow #19 US Na 1Nrarlh Sloe Baro None Nana None Unknown Need HRR. PA, abandoned remediated Properly plugged and surface site South Barrow 1x20 US Na Worth Slope Bora None None None Unknown Need HRR, PA, abandoned remedialed Need HRR, PA, dolling mud assessment, containment assessment, possible releases. Breaches allow wafer to flow into and aul of property plugged and surface site Watakpa #2 USGSI BLM None None lNone lyes I reserve and flare pits. labandoned irernediated Page 14 of 14 0 - 024_ OF rici.so��\���•��. THE STATE 11 w� iil G 1�,L5' "C L1Li"1PL16(L Ofd LAS A Conservation = ti -' _ - Division of Spill Prevention and Response i ?='= , Contaminated Sites Program GOVERNOR SEAN PARNELL %tip, 610 University Ave. ALAS 5' Fairbanks,Alaska 99709-3643 M . . Fax:ain:907907.451451.2155 2181 July 11, 2013 Wayne Svejnoha Supervisory Minerals & Energy Specialist 222 W 7th Avenue, #13 SCANNED MAR 1 1 2014 Anchorage,Alaska 99513 Re: BLM Legacy Wells Dispute Dear Mr. Svejnoha: The Alaska Department of Environmental Conservation (ADEC) —Contaminated Sites has reviewed the National Petroleum Reserve in Alaska: 2013 Legacy Wells Summary Report dated February 2013, containing updated information on the status of the 136 Legacy Wells located in the National Petroleum Reserve— Alaska (NPR-A), and the draft National Petroleum Reserve in Alaska: 2013 Legacy Wells Strategic Plan dated May 2013. ADEC has also reviewed the response by the Alaska Oil and Gas Conservation Commission (AOGC). We concur with the response by AOGC and have no further comment regarding the priorities. We do have comments about the investigation and cleanup plans presented in the report. With this letter we are outlining regulatory requirements related to the environmental work that is proposed and required as part of these cleanups. ADEC is concerned that the 2013 Legacy Wells Strategic Plan prepared by the BLM does not include either assessment or the contingency for assessment of known,likely, or unknown but possible contaminant releases. In addition,BLM plans for surface cleanup of these wells should be made clear in the plan. At least one of these legacy wells has extensive PCB contamination and has resulted in a multi-year cleanup totaling tens of millions of dollars. At others, solid waste disposal practices have resulted in releases to the environment with estimated cleanup costs in the hundreds of millions. Known releases documented in the records we reviewed include crude oil,gasses,refined oil and fuel, drilling fluids that include various organics,metals,and other chemicals, and unknown contaminants from drums and other containers observed to be damaged and abandoned at the various well sites. There are 13 legacy well sites with known releases currently on the DEC contaminated sites list. Many of these are in the process of being addressed, cleaned up, and closed. From our limited records review there are 15 additional legacy well sites with confirmed releases. These should be prioritized for initial records reviews and then added to the BLM contaminated sites list under our cooperative agreement. Suspected releases include fuel releases from operations, storage, and fuel spills at the sites,impacts to various surface water bodies from spilled fluids during drilling and breaches of containment at reserve and flare pits, continued surface runoff from drilling fluids uncontained at several sites, and down-hole substances that were ejected from the holes over time or during blowouts or drilling operations. Wayne Svejnoha 2 July 11, 2013 The BLM plan to address these known, suspected, and unknown releases at legacy well sites is notably absent from the documents presented to date. The three primary regulatory agencies that need to be involved in the plan are ADEC —Contaminated Sites,Alaska Oil&Gas Conservation Commission, and ADEC—EH/Solid Waste. Other agencies will need to be consulted as well. Below we provide recommendations for a coordinated plan using the Uniform Federal Policy for Quality Assurance Project Plans (UFP-QAPP) that will involve all of the regulatory agencies in one coordinated manner. This will allow BLM to address these sites in a consistent and coordinated project which fulfills all of the regulatory requirements so that the sites do not need to be re-visited in the future when they are closed after this project. Attached are our comments on each specific well. The acronyms used on the list include terms that are typically used in a CERCLA type investigation however they are also suitable for investigations conducted under the State of Alaska cleanup rules. These include the following; Historical Records Review (HRR) This is recommended for almost all of the well sites. Much of the information required for these reviews is already contained in various reports and appendices or in BLM files. The Historical Records Review should document the type of releases that might have occurred from drilling operations as well as historical use of the site, and should capture all available information on the drilling fluids used and any product produced or released. Preliminary Assessment (PA) This is recommended for almost all of the well sites. A Preliminary Assessment is a limited scope investigation that provides an assessment of information about a site and its surrounding area to distinguish between sites that pose little or no threat to human health or the environment and sites that require further investigation. The PA is a CERCLA defined document and typically does not require sampling. Site Inspection (SI) If the PA recommends further investigation, then an SI is necessary. The SI is a CERCLA defined document, and it is analogous to an initial report of contamination under state cleanup rules. On some legacy well drillings sites it is evident now that an SI is required just from a review of the reports. An SI investigation typically includes the collection of samples to determine what contaminants are present at the site and whether they are being released into the environment. An approved site specific workplan is required under both CERCLA and 18 AAC 75 prior to SI sampling. The SI typically is not intended to develop a full site characterization, but is limited to determining the presence or absence of a release. If contamination is found after completion of the HRR,PA, and SI then a RI/FS under CERCLA, or a Site Characterization Report and cleanup plan under 18 AAC 75 is required. DEC recommends that BLM incorporate into the strategic plan the processes outlined in this letter. A team of agencies composed of AOGC, DEC-CS,EPA as required, and DEC-EH should address regulatory and technical requirements for these well closures. By cooperating and working together with the regulatory agencies BLM will save time and expense,and regulatory uncertainties will be avoided. The strategic plan should reference a project to prepare a generic workplan. DEC suggests that BLM utilize the generic UFP-QAPP workplan format for the required environmental work. If properly prepared,the workplan could encompass most of the investigations and cleanups required at these sites over multiple years. At other multi-site projects we have found this to be an effective way to reduce uncertainties and risk in these types of investigations. A very small site specific FSP could then be developed as BLM approaches each drilling site. Regulatory decisions made during workplan development would provide more certainty in the planning process for cleanups. n•\enAA\re\FP,Ia..,tt nt:rP<\(;..;h nFPAr..al AoPnrirt\ffT\BLM\Projects\Leeacv Wells\7 11 13 Letter to BLM on Legacy Wells.docx Wayne Svejnoha 3 Tuly 11, 2013 Please review the attached list of specific sites. If you have any questions, please do not hesitate to call me at 907-451-2181 or by email at fred.vreeman @alaska.gov. I look forward to working with you as the Federal Government fulfills its requirement to clean up these well drilling sites in Alaska. 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Z CL I' .D Q E N E C E N a) N = a) N N = O O N = a) a) o a) a) 0 a) N N a) N m t,'")) .�- T Q m N Q) a) O T m .- O m _c- a) a) a) a) o a) o N 0 m u) Q d N CO U o o -0 0 a N m U t- 3 -0 c w 3 r- a Z Z Z Z Z Z Z m m a) 3 a i V) x ill -; o U o■ u 0 aa)) 3 3 3 3 3 3 N c 'u N N `) w d Ns N C C C C C G 3 N d N co- o Y Y Y Y Y Y co _ re >. Z D 0 D D D D r co CM a) CNn o J co V L 'O N 3 o 0 CO/ N ii CO d c t7 co a) a) a) a) a) a) a) a) O a) c aj c C c c c c c c U, LL Z M Z Z Z Z Z Z Z Z C co _ 7 co Q ° a CO Cl) m Cl) C C C C C 0) C C C Q Z Z Z Z Z Z Z Z Y (0 ie M I- ,T, 2 .o CO C C C C Cl) C C C C 030. z Z Z Z Z Z Z Z Z Z `o) o' 0 O o 0 m0 0 m0 m0 0 o. a a 0. 0. J 0 0 0 0 0 CO CO CO CO CO O. 2 L L L L L re m 2 2 O O O O O ...1 m J z z z z z J .r — r m C m CCD m m m `�) 0 CO CO Q Z Z Z Z Z CCD O ? U) U) 0) u) CO CO CO CO CO > > D > ik Cl) N 0) 0 C a It O O 0 O O O O N Z n0, 0N) t] CO CO CO CO CO m 0- CO ey Q LL 0 0 0 0 0 0 m -� v) 03 cn CO 0) CO • • Section 2: Wells BLM Monitors Legacy Wells Summary Report South Barrow #2 SURFACE INFORMATION Site Location: Coordinates (DD NAD83) 71.2622° N, - 156.6342° W. The site is located approximately 4 miles south of Barrow, within the currently active Barrow Gas Field, adjacent to the East Barrow Gas Field Road, and within view of the East Barrow Central Processing Facility [Figure 1]. This well is located within the Northwest National Petroleum Reserve in Alaska and is on privately owned land with oil and gas reserved to the North Slope Borough. However, the well remains in federal ownership, as it was specifically excluded from conveyance in the Barrow Transfer Act of 1984. The last site inspection was in July 2012. Site Description: The South Barrow #2 site consists of a well housed inside a constructed wooden box that sits inside a concrete well cellar, along with associated surface debris in an area approximately 50 feet north to south and 30 feet east to west. The U.S. Navy drilled the well in 1949. There is no pad or reserve pit associated with this well. The constructed wooden box consists of plywood walls attached to a 2x4 frame that measures 3 feet by 3 feet and is 8 feet tall [Figure 2]. A door is present in the southern wall, and the remaining walls are intact. No roof is present on the wooden box. The box completely encompasses the well and is located within the concrete cellar, which measures about 8 feet square. The concrete cellar was constructed on top of a plywood frame that sits on about six wooden pilings [Figure 3]. The exact number of pilings supporting the cellar is unknown, and the plywood base appears to be slowly collapsing at the southwest corner. Associated surface debris includes at least 12 wood pilings about 10 inches in diameter and about 16 -24 inches above the ground surface in the immediate vicinity of the well. There is also a small pile of drilling muds about 8 feet in diameter and 12 inches thick that lies 50 feet southwest of the wellhead [Figure 4]. The wellhead is missing numerous bolts on the top two flanges and the control for the gate valve is broken but still attached [Figure 5]. A 10 -inch diameter metal pipe is present south of the well, extending vertically about 24 inches above the ground surface. This pipe is assumed to be the rat hole used to hold the next drill pipe section during drilling. Other miscellaneous debris on the site includes several small pieces of weathered lumber, sections of narrow diameter (approximately 1- to 4 -inch) metal pipe, and chunks of broken concrete. It should be noted that scattered debris is present beyond the boundary of the South Barrow #2 well site, due primarily to the active and ongoing use of the Barrow Gas Field. Surface Risk Assessment: Low. Justification: There are no known contaminants present on the site. The well site and surface debris are located in an area of seasonally flooded tundra, most likely the result of low areas and thawing caused by human activity (i.e., heavy machine operation and construction). A small stream is located to the south that appears to be in an established channel between two drained lakes (Dry and Footprint Lakes). The BLM needs to prepare a determination of eligibility pursuant to Section 106 of the National Historic Preservation Act, due to the age of the site. If the site is determined not eligible, then the surface debris should be removed as funding allows or in conjunction with other scheduled operations, if possible. SCANNED MAY j 7 2013 148 BLM Open File Report 127 • February 2013 • Legacy Wells Summary Report • Section 2: Wells BLM Monitors D .► 4 ,� 5 F ield _ _ th,8arrow #2 1 r ...r�' ji lt ... _ ..... 7 C Df 111%.:-.1,. - . i • Figure 1: Aerial view of South Barrow #2 and vicinity (June 2007). 1 { 1 � 4/h ' ler,. ..., ,:- .... F.....„ ,,- A ..... . . _.... ..ero .- ,....,...,,,,,-, : .r ,/,.?-g---,.- -:, , .,. - zor.„, -......-,- ,,r,‘ , -., . , 4.. ,,,,,..„....,. . C 4 . ' '''', . -,....,..,,,, ......*„. ,. g.... -, --, . .� Figure 2: Plywood box that houses the South Barrow #2 well. BLM Open File Report 127 • February 2013 149 • • Section 2: Wells BLM Monitors Legacy Wells Summary Report ' •, t 4- f ,... j r ., y �M ' Y 4 „,,,,,,,4 9t 1 «, .'..,n` ' '. a , . 4 , � �I ., ` ta 4.. 'w ' 1 S "� I d ' 7 ` i p, 4 . ` ' lit �i,' "R" t . $ cltk ` + t 1. om y ���tl�'� �� f rt y " t ' 4 A r ,, i s • !Ik -+mo4 . . ,,, , :; ` 1 t ` pi t A s ! - r • d -4 / . , r , Figure 3: Close -up showing the plywood base that hosts the concrete cellar and the plywood box. L 1 r 41. tli M ,;a .'h R... t ,* � ' •r f of i ' - •Ads. ' .. o op Si. f, ° ., - - Figure 4: A small pile of what appears to be drilling muds; telephone lines and an old production line from the South Barrow Gas Field are also present. 150 BLM Open File Report 127 • February 2013 • 0 Legacy Wells Summary Report Section 2: Wells BLM Monitors EL A v 1 1 i 11 li i i . f i . I I' ' I 1 !. ill ;‘) 44 fp I ' /I I , o • . , 1 i r I ) , A. . , A i • - ftliV r ' ..... •• 4. 0 i I t, 1 ; 1 1.1 ii j 1 , 0 4111 f - . (41 * ' ,....„ \ . . Vbk 4 ti i , ,itir ..„. 1 tf i ' ‘ r 1 ' ,, , i ,•• k .1 • c ''s ■ i trio ,-, P i , * ••• , i - - , 1,4 • i , , • , . - ... .. . .4 1. \ . '. ir‘ 4' .7,4' . ‘ N.:. 4111■ Figure 5: Wellhead for South Barrow #2; several bolts are missing on the top two flanges and the control for the gate valve still attached, but is broken. A thermistor cable protrudes from the top of the wellhead. BLM Open File Report 127 • February 2013 1 51 • • Section 2: Wells BLM Monitors Legacy Wells Summary Report SUBSURFACE INFORMATION Well Information: • Well History: The well was completed in April 1949, reaching a total depth of 2,505 feet [Figure 6]. It was the first well in the Petroleum Reserve to produce a useful quantity of gas. By July 1949, the gas was used to heat the Barrow camp. The purpose of the hole was to test a structural trap formed by faults that was identified during seismic surveys. Once the well was in production, it flowed at 1,020 psi, supplying as much as 500,000 cubic feet per day in February 1950. Several months later, a broken gas line caught the well on fire, destroying installations. The well was killed with mud. An impression block showed the 7 -inch casing had collapsed. At this point, the well was full of mud and was already freezing, so it was abandoned (Collins and Brewer 1961). • Well Condition: The wellhead is missing numerous bolts on the top two flanges and the control for the gate valve is broken but still attached [Figure 5]. The valve is probably in the open position, as a thermistor cable protrudes from the top of the well to some depth below the surface. • Wellhead Components: The wellhead consists of a broken gate valve and no gauges. Geologic Setting: Findings included staining to slight oil and fair to good gas shows in the Pebble Shale Unit between 1,930 and 2,328 feet. Between 2,328 and 2,443 feet, the hole penetrated the Barrow sands, which had good oil staining and slight shows. Beyond 2,443 feet to total depth consisted of argillite basement rocks. Four formation tests were run (1 test in the Pebble Shale and 3 tests in the Barrow sands), with each recovering at least a slight amount of gas. There were no oil or gas shows above 1,850 feet of the Torok Formation (Collins and Brewer 1961). Development Potential: There are no hazardous materials associated with the well that would pose a risk to the general health and safety of the land. Subsurface resources do not appear to be affected by the current downhole status of South Barrow #2. This is evident by the gas production that is occurring less than 1 mile away. Groundwater Resource: There are no groundwater resources present in this area. Continuous permafrost is about 1,400 feet thick throughout the entire Barrow region. Freshwater aquifers are not present. The town of Barrow gets its drinking water from treated surface water not from aquifers (Alaska Department of Environmental Conservation 2012). Other Information: There is no indication of hydrocarbon escapement at this location. 152 BLM Open File Report 127 • February 2013 • • Legacy Wells Summary Report Section 2: Wells BLM Monitors S*Lth es rm.. Tezt W'll n 2 •. A L . .i , -::"":44:...n • -..'" no.:i" . 7: :.----.- . . ...........,„ • il ri I . D lb% 42 # Western Ppe and Stool si plaint cas sct , v . : 6S 0 ; . .‘"•-..,„,t.°.; 47 sX e (Anstructcn cerrerl t' . 1 r ,' *--"- 7 4 C4' 4.12t at (Of° t 6 /I c f nd :hrsad API seam ess casAng 1031Y 6 PO el in cemonl --- 1 41)1114). q • I , 1 1500 . I 2D00' 7, 23 0 J-55 range. 2 cesirkg ilia ly ..;..'e: 0 2200' " 1 . 1! .41.1:1\s, 4 1. + /43 nal f,onsitu:1:un cen tent evere used lc, SO ptpc ■ _ciultipla aitan 'd set casino er described t'll Is tire'11g r ---‘‘-- \,_ it , . .„ .,,,,..... V80' of ti V2, 17 4 Grade J-55 Ernsco forret was set ift 2224 7wr,' -. .1 C N*-, ..... wrac lour rislmiled at !:2711* ps IF, 2PPP44:)2*. '?‘7.1i- frittom of linr.-. 2M N, NN 7A i's i 01 Nig (9 1ir arstnnt-iii.crit AS N. H-40 P *aLeti Inteld rare 2 API searn'assi ivara at 't 24E8' Figure 6: South Barrow #2 wellbore diagram. BLM Open File Report 127 • February 2013 153 • • Legacy Wells Summary Report Section 2: Wells BLM Monitors u:. 99rro:v TP:l w: II n 2 A E-- 7 ► ,�9 44 t y �'+- 1 • ;.. . _/-7 PO4 y Ii ' f� 1 7 j --" ewtf,r(9 r�re and acct .51 p•IQ9nt va =.rxg Sit '4�t �19 '�I i� 0 '�'f , •,...w, 47 sx c' Lanslrtxt;cn cerrert 5/9C i t 1 ? 71V . 47 t 1-3t1 grade 6 ro,ind thread API seam ess cas lar.O • at 9F i' w1 ax Of a»ucf st Dn cement 1 1 i I 1.540 1 • 1 2%00' 1 1 7 ", 23 P 155 ranyt 2 casing ilia Iy tee: 0 2200' 1 t 4 1!2 + 9g .Ax san:�tiu:hun cement +v ere user t..:', set pp= I ._S t c outiplQ Aten 'o Set cael g :if C1ESSrttt8 1 " t� t `9 6. :s:. frig r Slf...2 i {� ` fi0 of r 1. , 17 ; Grade .l -56 Err,sco liner was set 4 22e4' ; rd'n _ y �w;�,arker rhrd.atlyd at 49911' '"— — yp* 2PQP P4:'s2', N.7705341 k.,ttc m of :inr': 2 N\ /a !lino all .Nlo {9 11) nsii•u s.=.et AA tt. H.40 R vt.rrd inread (art e 2 API eearn'assi were at 4 24E8' Figure 6: South Barrow #2 wellbore diagram. BLM Open File Report 127 • February 2013 153 . . lc-apfm lOj an95 PLUGGING & LOCATION CLEARANCE REPORT S ta te of Alaska ALASKA OIL , GAS CONSERVATION COMMISSION PTD No. OQ -q24 Lease Memorandum To File: API No. Well Name Operator Location ð2'5 -100 In - 00 se I'Ø-rrn4' /I: 'Z (1. ç /\/1'1 ~ s:~ 1'1; r-L/2..N¡ /I~ /8 ú~ úþ( Abnd Date , Completed Spud: , TD: No1:e casine¡ size, w1:, dep1:h, cm1: vol, , procedure. Sfc Cse¡: Lone¡ Cse¡: Liner: Perf in1:ervals - 1:ops: Review the well file, and comment on plugging, well head status, and location clearance - provide loCo clear. code. Plue¡s: Well head cu1: off: Marker pos1: or pla1:e: Loca1:ion Clearance: Conclusions: ÁJO . dD. fu y Signed r:8 flA'::' ~1~~ ~ tlc:1o Date Z(28!9'r Code . - . UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Office of National Petroleum Reserve in Alaska 345 Middlefield Road Menlo Park, California 94025 January 31, 1978 ,1-<:: íVPR I~ Mr. Harry W. Kugler Division of Oil and Gas Alaska Department of Natural Resources 3001 Porcupine Drive Anchorage, Alaska 99504 c:;vrvv¡ ~\ ~~ ~ )·uti ...':~.ûv ~j~" Dear Harry: The enclosed lists de~.' a large number of chips from I-foot intervals in cores (South Barro 2 6, 9, 12, 13) that we had assessable in Menlo. They have been shipped 'n ~ boxes as noted on the list. /1 ~ Unless you refuse to deal so haphazardly, we will keep shuffling chips to you as we have a chance to sample. Currently, most will come from Doc's work in Anchorage. Hopefully, you will keep a systematic record so that in a year or so we can mutually define the gaps in your collection and fill them specifically. Catching up on the pre-Husky material will be a big job that will be justi- fied by having your library as complete as possible for the succeeding generations. We'll be getting to the post-Husky cuttings and the pre-77 well material shortly. Regards, ~ Enclosures Irvin L. 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" -7;2">J _. __~.____~"_._"___...__.___:b...._,... ._".___" ,_._-,___. n___.·_.._...,_ _...~__.__~__~M.'__~_ ._..;._ --- ~-_...------ __2..2~4 " / .. ... 2 _2£ J> ¡I .. .-------..- -.»-.--..- .,2;2 s-.;2 n ___ __ .____""_.___ _____,.__"__.'._.__~._,_~~_ ~__~~___.__..~___._ ,.-- -.. ~._-- .."--~. -~---~-----c -----'._-. ....."--~--'-. ·T--'-----..-.."~-_·-·--'~'------···~---- u' .. __..____...___...__~..__~ ___.__.__.._"_~_...__ ... __~_____~_~________~__...~_ -0. ___...__...____~__'______._._._._._.__.__ - , {.Zð.. r I'ð w:r.:t ..L ELSON LAGOON SOUTH BARROW FIELD I PROVED RESERVES , DECEMBER 197B - 14 B C F 9 10 SOUTH BARROW EAST AREA FielD PROVED RESERVES DECEMBER 1978 - 11.5 BCF PROBABLE RESERVES DECEMBER 1978 - 76 BCF GAS-WATER: CONTACT -2081' + ~AVAK NO.1 i I ! CORES INDICATE I ¡ HIGHLY FAULTED i 5ED1.MENTS WITH ,. 19 20 ! ERRATIC DIPS 22 ¡ I I ---- ¡ . DISTURBED I ZONE I .. 25 30 29 2. 27 22 27 33 ,---/1 I \ !~ -------L-----~- I oA50 I '0'/ .. I 0 / I.1A -<o!.-- /1 .1>- I ;'0 / I /Í1 , / _-2--2300' _.1-- - --¡-- I. 5 ---t-- - -- - _ - -2350' --- -- - /' -- 11 12 10 - SEISMIC CLOSURE"," POTENTIAi--' ADDITIONAL GAS RESOURCES \ 1 __ POTENTIAL RESERVES 4 BCF \. ! - 1"- .. I .................... I "-- -2:150'-.. "23'''~ SARIOOW ~Q~. .~ -~-----~_._-- ".¡oor-_ ., I ---- ./"'" " /' -........ -- ,...---.... /' "'-. ---2400' 15 13 " 17 13 " ............. /-- 17, / '6.2320' ........- 41KD NO.1 -,.2';>$0- 16 I l 2\ 22 23 ,. " 20 -L" 22 ~ 23 U " 20 21 ¡tV ~-~-- --~ -- -t STRUCTURE MAP ! LEGEND APPROXIMATE TOP BARROW SAND PROVED AND BARROW AREA 27 26 25 30 29 2. 27 PROBABLE RESERVES NATIONAL PETROLEUM RESERVE IN ALASKA seA l E POTENTIAL RESERVES 3000' 0' 3000' 6000' 9000 I 2. , ~~~~:~~: \9::A,H J GRUY AND ASSOCIATES, INC. J MAP No.2 \' y • 1c- oaP? MEMORANDUM TO WELL FILES October 17, 1977 From W. C. Wunnicke SCANNED MAY 2 Subject: South Barrow Well No. 2 Abbreviated Well History. The following discussion, Ancluding attachments, was developed after review of recently received xerox copy of the file on subject well, and Proi Paper 305 -K, part 5. i 9 ' e 44 1/) The well history indicates they had considerable trouble completing the well, principally because of difficulty in cementing the 7" casing. It took them 30 some days to obtain a seemingly satisfactory cement job and during that time the entire pay section was exposed to drilling mud and /or cement that failed to set up. Yet, according to an undated report by E. L. Powers, a Mr. Gruy, with DeGoulyer and McNaughton, tested the well for a maximum delivery of 4,100 MCFPD. This was not called an absolute open flow determination in the report. Gruy also estimated a recoverable reserve of 3,000 MMCF. The test was performed in the spring or summer of 1949. I did not find Gruy's report. I found no evidence of the well producing an appreciable amount of water after certain early tubing freezing problems were resolved. The freezing took place during the initial cleanup of the well bore. However, small quantities (a few gallons) of a black colored fluid was trapped in the separator and samples were obtained for analysis. See pp. 606 -607, part 5, G.S.P. Paper 305 -K for analyses. Samples were obtained for analysis on March 19, 26, 30 and April 2, 1950. This sampling information is from a xerox copy of Andy Crane's handwritten report. Karl VonderAhe, Chief Petroleum Engineer, states on Page 9 of his summary report, "Well has continued to flow without interruption through 16/64" bean from 4/30/49 to 5/30/49. Total amount of fluid recovered from the high pressure trap has been approximately one quart of muddy water. Tubing and casing pressures have increased slowly while well was producing at approximate rate of 500 MCF • 1 2 - 17 Oct 77 Well Files with a TP of 1,000 psi., and CP of 1,010 psi." A further search of the records and inquiry of Andy Crane may determine if the well produced water during? its entire short productive life. Crane also states in said report that the well caught on fire on 4/15/50. The gas flow was shut off through the ingenious effort of Crane and other field personnel. The well was killed by pumping mud down the 7" x 22" annulus. The mud was pumped from the number 4 well location to the number 2 location. Approximately 200 barrels of mud were used to kill the well and subsequent to the initial "kill" operation mud was circulated down the 7" by 22" annulus and up the 21/2" tubing, then down the 22" and up the 7" by 11 3/4" annulus. This indicates communication between 22" tubing, 7" and 11 3/4" casing. Andy's report ends on 4/16/50, at which time they were circulating mud. Viva voce, Andy Crane, and Gene Bowler, I understand a bulldozer inadvertently tore out a production or lead line and a fire occurred which destroyed the surface installation. Reportedly, subsequent to the fire an attempt was made to reenter the well, possibly to return the well to a productive status. The 21/2" tubing was pulled with some difficulty. An impression block was run, which indicated the 7" casing was collapsed @ 585 feet. It was presumed the 11 3/4" casing was also collapsed and the well full of "heavy" mud was abandoned. The mud froze, effecting a seal from the base of the permafrost to the top of the mud. I have found no record as to whether any tubing was re -run or the level of the mud in the well. The casing(s) collapsed, presumably from permafrost action (see Brewer's statement on page 597, of Production Paper 305 - part 5). The wellhead, or Christmas Tree, with certain originally installed valves removed, is still in place as of this date. See attached photographs. The subject discovery well was completed as a producible gas well on April 15, 1949. • • Page 3 - 17 Oct 77 Well Files Between the completion date and July 29, 1949, a transmission line was installed from the well to the Navy camp facilities at or near Barrow. (see April 19, 1949 Memo to the Secretary of t0 Navy). The record I have examined indicates the well produced and the camp used 70,629 MCF of gas between the period July 29, 1949 and March 31, 1950. See Attachment III. The record indicates production was taken from 11 3/4" x 7" casing - casings annulus after January 20, 1950 instead of from the 2 7/8" tubing or 2 7/8" tubing- 7" casing annulus, as presumably originally planned in the completion. See diagramatic sketch of casing and cementing record (Attachment 1). The subject well was a discovery and, presumably, very little was known about what effect permafrost would have on the setting characteristics of ordinary construction cement. The cement used was packaged in hermetically sealed cans for wartime usage. (I am assuming from the record, a can contained the equivalent of about 22 sacks or approximately 250 pounds of cement). It was not until after several attempt were made to cement the 7" production casing, that they discovered construction cement would not set up under the operating and downhole conditions. Calcium chloride was added to a portion of the cement in some instances. The cementing record, as abbreviated in Attachment 1, indicates the 16" conductor pipe was set at 69 feet and cemented with sufficient cement to yield a calculated fill to the surface. However, an additional 25 sacks was used to complete the fill from the surface. Details of method used to place the 25 sx slurry were not specified. That is, whether it was pumped down through a "stinger" or merely dumped into the annulus. The 11 3/4" casing was set at 983 feet and cemented with 130 sacks of cement, • • ' r Page 4 - 17 Oct 77 Well Files for an approximate fill of 280 feet or to a depth of 700 feet. The report also states the hole made a considerable amount of mud while drilling the 15" hole below the 16" conductor, which might z .XIdicate the hole was enlarged. Item 14 of "Instructions for the drilling of South Barrow Test Well No. 2" specified that the 11 3/4" casing was to be cemented to,,the surface. The record does not indicate why they did not attempt to cement it to the surface. The record indicates that they used 22 sacks of cement to cement between the 11 3/4" and the 16" casing at the surface. Subse- quent events can lead one to question whether an effective seal was obtained on the 11 3/4" casing job. It took them approximately 30 days to obtain a seemingly satisfactory cement job on the 7" casing. The hole was drilled to a total depth of 2505 feet on March 2, 1949. An unsuccessful open hole cement plugback to 2417' was made. The purpose of the attempted plugback is not clear. It could have been to shut off suspected bottom water. The 7" casing was first run and cemented at 2308 on March 7, 1949. The final job was completed and tested on April 8, 1949 at a casing depth of 2260 feet. See Attachment II for abbreviated history of cementing problems and operations. A 51/2" slotted and perforated liner was hung from 2224 to 2544.5 feet. The liner was not cemented. The 2 7/8" OD (nominal 2.5" ID) tubing was landed at 2468 feet. The mud was displaced with water and while rigging up to swab, the well started flowing on April 15, 1949. They had problems with the tubing freezing off between April 15 and April 26, 1949. The ice plugs appeared to be a combination of hydrates, mud, displacement water and possibly formation water. Between April 26 and May 1st, gas was produced intermittently while surface equipment was being installed. Between May 1st and July 29th, the report indicates the well was tested inter- mittently. On July 29th, the production was turned into the gasline from the well to the Navy camp at Barrow. • • Page 5 - 17 Oct 77 Well Files In January, 1950, W. J. Larsen, in his report to E. L. Davis, Project Manager, for Arctic Contractors, reported discovering a gas leak around the conductor pipe and in checking the 11 3/4" x 7" casing annulus pressure, found it to be 1,020 psi, the same as the pressure on both the 22" tubing and the 22" tubing -- 7" casing annulus. This event is confirmed by Andy Crane's handwritten report. It was assumed there was a break or leak in the 7" casing. They tried, with no success, to find the suspected leak by injecting diesel oil down the tubing -- 7" casing annulus while flowing through the 7" - 11 3/4" casing annulus. On January 20, 1950 the operator started producing gas to the pipeline from the 7" x 11 3/4" casing - casing annulus. Subsequent reports through March 15, 1950 indicates they continued to produce into the pipeline from the 7" x 11 3/4" annulus. The pressure on the 21/2" tubing and on the 22" tubing - 7" casing annulus remained constant at 1,020 psi during this period. Neither the 7" x 11 3/4" annulus pressure nor the line pressure was reported. As previously stated, the engineer surmised that the cement failures were due to the use of construction cement. From this it is reasonable, at least, to suspect a poor cement job on the 11 3/4" casing. One could also suspect the possibility of 11 3/4" casing collapse at some place(s) through the permafrost zone. The collapse resistance of 11 3/4" 47 pound J -55 casing is 1,510 psi. The collapse resistance of 7" 23 pound J -55 is 3,270 psi (API Bulletin 5C2). Logging operations were as follows: Schlumberger Logs Run No. Date Run From To 1 1 -4 -49 69 993 2 2 -3 -49 993 2017 3 2 -17 -49 2017 2378 4 2 -24 -49 2378 2441 5 3 -3 -49 2441 2502 6 3 -28 -49 2250 2287 (To locate shoe of 7" at 2260.) • . T ;Page 6 - 17 Oct 77 Well Files The report does not state the type Schlumberger logs run. It is assumed the only one run was the Spontaneous Potential- Resistivity, as that is the only log in the file. William C. Fackler was the resident geologist on the well and he has a rather detailed geological report describing both the ditch samples and the cores. W. C. Wunnicke Attachments r • . • South Barrow Well #2 Casing and Cementing Record Spudded 12 -18 -48 ,TD,2505'' /G ".g Gr. elev. 12', KB 23' ' tj • I 1 6 12 -20 -48 16" I.D. 42# Slip jt. csg set in 20" hole at 69 feet with 47 sx of construction { cement treated with calcium chloride. Held pressure (400 psi) on cement for -\ 13 hrs 20 min. Drilled out on 12/23. \ \ � � Top of cement @ 66.6'. Filled around top of casing with 24sx cement. f „ 1 -10 -49 11 3/4" 47# J -55 csg set in 15" hole Gle,,,,,, b l 77, , f @ 960 feet with 130 sx construction � - cement. 9,83 1 -13 -49 Test casing at 500 psi. Drilled out f 3 , shoe and 2 feet of new hole. Tested with 500 psi for 5 minutes. Held (?6e,)` pressure O.K. 3 -7 -49 to 4 -8 -49 Ran and cemented 7" 23# J -55 casing. Landed @ 2260'. See recap -- -- -- - -"" -" of cementing problems. 4-13-49 Hung 5/2" 17# J -55 perforated ! liner from 2224' to 2504'. No cement. 9 ys ` 14,0/e. 4 -14 -49 Landed 2 7/8" OD (21/2" ID) 6.5# H -40 Z 8 rd. thd. tubing - 2468. 0 T0, �s (gem,-„ z 4 -15 -49 Installed Xmas tree and brought well in. 4 vr , 'i 4 -15 -49 to 5 -1 -49 Testing. Shut in surface a , „ e .Iri ''rte Y pressure 1020 psi9. : ' /,•, ::. - - z.. Q y 1 Attachment I ,W. CW • • • South Barrow No. 2 Recap of 7" Casing Cementing Problems 3/7/49 Ran 7" in 0/8" hole to 2325'. (9 5/8" drilled to 2505'). Cemented in 88 sx. After pumping about 30sx out shoe pulled csg to 2308' and completed job. Halliburton pump malfunctioned and excess amount of water was mixed with cement. Float shoe on bottom. Used a wood top plug and baffle plate. Casing was still free after 39 hours WOC. 3/10/49 to 4/3/49 Fishing, rig repair, mix mud, drill ice bridges, rig up relief lines, thaw out equipment, etc. Schlumberger found casing shoe @ 2260'. See Petroleum Engineer's report in well file for details. 4/4/49 Equalized 20 sx regular oil well cement with 38 lbs calcium chloride (approximately 2%) to 2240' - 20 feet above shoe - with drill pipe @ 2289'. Casing at 2260'. 4/5/49 Washed out cement to 2262'. (No time interval indicated.) Pulled up to 2220' and closed in. Started circulating about 8 hours after washing out cement. Tagged up and found top of plug @ 2265'. Plug took 5 points of weight about 13 hours after completion of wash out operation. 4/6/49 Re- cemented with drill pipe @ 2264'. Squeezed away 32.5 cubic feet of cement slurry for a calculated fill behind casing of 140 feet to 2120 feet (casing = hole annulus). Mud returns to surface during last 5 cubic feet (approximately 1 bbl) of displacement. 4/8/49 Found top of hard cement @ 2246'. Cement took 15 points at weight with pump pressure of 200 psi. Tested casing with 1,000 psi. No pressure drop in 10 minutes. Evaluated casing test as being satisfactory. 4/9/49 to 5/15/49 Ran 52" liner, 2 7/8" tubing and tested well. Attachment II • • South Barrow Well No. 2 Gas Production Summary MCF 1949 1950 JAN 12,906 FEB , , 11,647 MAR 14,002 APR MAY JUN JUL 115 AUG 2,990 SEP 6,186 OCT 8,266 NOV 1,142 (4 da) DEC 11,425 S.T. 30,124 40,505 Total 70,629 Attachment III • • ,,4,, tpr ,... _ , ) ,. 4 . 1 . z.:ff ,„-- ktio,-.. ,, fr , .::::' , ...,-,, ..., ? 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' . . s x ; , nC' x : } s 11.4,01.,41,,,f- , v . r• p s 4 ' ,,,, .. ^,,'? ? ; �� �,�r � °` :� ` '7 } 1�"' 'G 4 t{ F �p •� ( 1.0-, � ' 1 , �� F 1,r,,....„..,.,,,,,•..-..... a �p, n � ^� : �, �, "� � 4 +�.,� f � fi I V ! iP. + JY v� � � � �!TF f �, A•ij +G? � .:v' 1 , 4 I•t� '�l fi ���1 ` t �'�y D ' "� `q '' i. 6• /'1,tzt 11: . i . � r ,��f QAy . 1 �° �j � ?°- : . , a r 6t a , + , m ,, . { y . 4:.+.'�, �$ "a .c y"`. rr .r '�' v i 'Raa z. .�.t s :r.�. �vd`+:36i+�ft it. . v •, 'd x .i i s r '# 'x • 1 14: „ t ” 4 . 4 k� t r ,,,, " 3 A L A 4 K A J � � H 1J G N E U 2 U 596 EXPLORATIO. NAVAL PETROLEUM RESERVE NO. 4 ASKA, 1944 -53 ,, u pper part of the test well to 8,883 feet per second at Lachenbruch, U.S. Geological Survey, obtained a curve the base. Vertical velocity through the siliceous rock almost identical with the profile from South Barrow penetrated at the base of the test was computed at test well 3. 17,500- 19,500 feet per second. The inverse geothermal gradient at South Barrow There was no evidence of unusually high velocities, test well 1 is approximately 80 feet per degree centi- indicative of permanently frozen strata, which had been grade. This gradient is lower than those found in other noted in some test wells in the Reserve, but ice formed permafrost areas in Alaska such as inland from Barrow, in the hole as deep as 615 feet., indicating the presence of Cape Simpson, Umiat, Fairbanks, and Glennallen, but permafrost to that depth in the vicinity. is to be expected as a result of the influence of the nearby bodies of water on the temperatures at depth TEMPERATURE - MEASUREMENT STUDIES, in this well. SOUTH BARROW TEST WELL 1 SOUTH BARROW TEST WELL 2 Location:Lat 71 °15'49" N., long 156 °38'03" W. By MAX C. BREWER Elevation: Ground, 23.5 feet; kelly bushing, 34.5 feet. Spudded: December 18, 1948. South Barrow test well 1 is on the landward side of Completed: April 15, 1949. Gas well; junked and abandoned • the present beach ridge, about 400 feet from the edge of Total depth: 2,505 feet. the Arctic Ocean and just west of Barrow Camp. It South Barrow test well 2 was the first hole in the was completed at a depth of somewhat more than 3,550 Reserve to produce a useful quantity of gas. Oil heaters feet in February 1949. Two cables manufactured by at Barrow camp, 5 miles to the north, were converted to Humble OiI Co. and containing copper -wound resistance gas, and the well supplied enough fuel to heat the camp. coil thermal elements were installed to a maximum The location of the test was based on seismic surveys depth of 500 feet by Arctic Contractors under the super- which outlined a small area where a structural trap was vision of Mr. William C. Fackler, Jr., geologist for Arc- formed by faults on the southwest and east sides of a tic Contractors. Frequent readings were made on these block of sediments that dip northwest. cables from the time of installation until 1953. The hole penetrated about 70 feet of marine Pleisto- The geothermal profile for the well on January 10, cene sediments (Gubik formation, 11 -80 ft) and then 1952, which closely approximates the predrilling equi_ entered Cretaceous beds. The Topagoruk formation, Librium geothermal profile, is shown as figure 51. A the youngest Cretaceous unit found here, is dominantly short extrapolation of the profile indicates a probable shale and had no shows of oil or gas. It is present from depth of permafrost (0° C isotherm) of 670 feet, approx- 80 to 1,730 feet and is underlain by 200 feet of the imately one -half the depth indicated at South Barrow Oumalik formation (1,730 -1,930 ft). (See pl. 42.) test well 3, 8 miles inland. The temperatures shown are Below the dark shale of the Oumalik and Topagoruk formations, a 400 -foot also considerably higher than those from comparable section of pebble shale is present depths at wells farther inland. These anomalous tem- from 1,930 -2,328 feet. perature results are readily traceable to the nearness of Below 2,328 feet, the well penetrated more than 100 feet of light-olive-gray- sandstone and siltstone of Middle the ocean and a brackish lagoon lying between the well Jurassic age which had an odor of oil and showed a light and the nearby camp. After computing and subtract- oil stain. Between 2,443 feet and the bottom of the ing the influence of these bodies of water on subsurface hole at 2,505 feet, bluish -black siliceous or carbonaceous • temperatures at South Barrow test well 1, Arthur H. argillite constituted the oldest rocks drilled. Allar :;.fit �- • {mss y _ , " c, ., 'i'�►., _ .. • • CORE TESTS AND TEST WELLS, BARROW AREA, ALASKA 597 DEPTH, TEMPERATURE, IN DEGREES CENTIGRADE IN FEET —8 —6 — —2 0 +2 0 I I 1 1 I 100 ti 200_ 300 400 500 x 600 \ _ o a Jan.10,1952 x June 8,1950 700 • FlGu1t 51.— Geothermal profile for South Barrow test well 1. Formation tests of the Jurassic rocks and the argillite remained at 1,020 psi. Hydrates and ice blocked the recovered no oil, but a small amount of gas was noted. tubing occasionally, but it was cleared by blowing the After setting casing at 2,260 feet, the hole flowed gas -cut well down for short periods. At the end of March, plans mud; and following some difficulty caused by frozen were made to kill the well in order to investigate a sus - mud in the hole, the well was completed, producing gas petted leak in the 7 -inch casing, but before it could be with a trace of condensate and water. The flow pre- done the well caught fire from a broken gasline, the sumably came from the Jurassic beds, but fractures in installations were destroyed, and the well was killed the argillite may also contain some of the gas. On with mud. An impression block then showed that the July 29, 1949, the well began supplying gas to Barrow 7 -inch casing had collapsed, probably from ice pressure. camp. Production varied with camp needs, rising to The well, full of mud which was already freezing, was 500,000 cu ft per day in February 1950, as more stoves abandoned, and gas for the camp was obtained there - were connected. Casing and tubing pressure normally after from South Barrow test well 4, nearby. • 568535 0- 61 - - -3 • • 1 598 EXPLORATION OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, 1944 -53 DESCRIPTION OF CORES AND CUTTINGS Lithologic description — Continued Lithologic description Core Depth (feet) Remarks [Where no core is listed, description is based on cutting samples! 425 -430 Sandstone, medium -light -gray, fine Core Depth (feet) Remarks to very fine grained, noncalcareous, -- slightly micaceous; composed of subangular to subrounded clear 0 -11 Kelly bushing to ground level. and white quartz and some dark 11 -15 Ground level to cellar floor. rock fragments. 15 -25 No sample received in Fairbanks 430 -459 Clay shale as in core 1 but with small laboratory. The well geologist, amount of sandstone; crinoid W. C. Fackler, reported ice and (Balanocrinus sp.) fragment at tundra, with some gravel mixed 440 -450 ft. with them, below 17 ft. 1 459 -469 Recovered 10 ft: 25 -30 Gravel of well- rounded black and Clay shale, medium -gray, very brownish gray chert pebbles. slightly micaceous in part, non - 30-65 Sand, light - brownish -gray, fine- to calcareous; rare carbonaceous very coarse - grained; composed of particles. Good shaly cleavage well- rounded black and brownish- dips less than 5 °. Laminae of gray chert and clear and yellow medium -light -gray silty clay quartz grains with some light- shale and siltstone are very rare. yellowish -brown very silty clay in Slightly infiltrated with drilling the upper 10 ft, and some gravel. mud 65 -80 Gravel; composed of black chert with 469 -505 Clay shale as in core 1. a few pebbles of other rocks. 505 -515 Siltstone, medium -light -gray, very 80-115 Samples from 80-90 ft consist pri- argillaceous; and medium -gray very marily of sand and gravel as silty clay shale. described above, but a small 515 -525 Siltstone, medium- bluish -gray, argil - amount of rather dissimilar sand, laceous, very calcareous, dense. which resembles that described at 525 -530 No sample. 115 -250 ft below, suggests that the 530 -545 Clay shale and siltstone. top of the Cretaceous beds (Topa- 545 -660 Clay shale, medium -gray, silty, goruk formation) is at 80 ft. slightly calcareous; small amount A Cretaceous foraminifer from of siltstone and rare grains of 95 -100 ft also indicates that the pyrite in upper part. top is above 100 ft. Samples 2 660 -670 Recovered 10 ft: between 90 and 115 ft are made up Clay shale, medium -gray, slightly of cement and hence furnish no micaceous in part, noncalcareous; information on lithology of that rare carbonaceous particles. Rare interval; electric log suggests that silty laminae and good shaly it is predominantly clay shale. cleavage dip 5 °. 115 -250 Samples taken from this interval 670 -700 Clay shale as in core 2 above. consist of loose sand, with a small 700 -710 Limestone, medium - bluish -gray, silty amount of cement, and in upper to very argillaceous, dense. part a rather large amount of 710 -860 Clay shale as in core 2 above; very gravel. Gravel and cement are rare very thin, beds of siltstone in contamination from above, and lower part. sand is from thin beds. Clay 3 860 -870 Recovered 10 ft: shale, which actually makes up all Clay shale, medium -gray, partly but a very small percent of the rock silty, noncalcareous; carbona- drilled, was described by well ceous particles. Beds dip 5 °, geologist as sticky and blue gray. and slickensides are present at Although the clay shale is not 864 ft. represented in samples, the elec- 870 -960 Clay shale as above. Samples com- tric log corroborates its presence in posed of loose sand, contamination the well. Sand is light greenish from thin sandstone beds higher in gray, fine to very fine grained and the hole. A few rare chips of shale is made up of subrounded to sub- represent the rock penetrated here. angular clear and white quartz, 4 960 -975 Recovered 13 ft 6 in.: and some green and dark rock Clay shale, medium -gray, slightly fragments. Pyrite rare to absent. silty and micaceous, noncal- 250 -260 Clay shale as above, with some light- careous; rare carbonaceous par - yellowish -gray very slightly cal- cles; good shaly cleavage dips careous clay ironstone. Iess than 5 °. Rare laminae of 260 -270 Siltstone, medium - light -gray, very silty medium -light -gray clay _ argillaceous, calcareous. shale contain carbonaceous par - 270 -385 Clay shale as in core 1 below but with ticles and are micaceous in part. a small amount of siltstone as 5 975 -995 Recovered 19 ft 4 in.: above. Clay shale and rare silt laminae as 385 -390 Clay shale with a small amount of above; badly infiltrated with sandstone, medium -light -gray, fine drilling mud. to very fine grained, silty, non- 6 995 -1, 003.5 Recovered 8 ft 5 in.: calcareous, micaceous, of sub- Clay shale and rare silt laminae as angular to subrounded clear and above. white quartz grains and a few 7 1,003.5-1,022 Recovered 19 ft: dark rock fragments. Clay shale and rare silt laminae as 390 -425 Clay shale as in core 1. above. CORE STS AND TEST WELLS, BARROW AREA, 599 Lithologic description- Continued Lithologic description---Continued Core Depth (feet) Remarks Core Depth (feet) Retnarks 8 1, 022 -1, 042 Recovered 16 ft: 21 1, 267 -1, 284 Recovered 17 ft: Clay shale as above. 1 ft b in., clay shale as above. 9 1, 042 -1, 059 Recovered 17 ft: 11 in., siltstone, light -gray, very 14 ft, jammed in core barrel and sandy, slightly argillaceous, very lost. calcareous, friable; rare carbon - 3 ft, clay shale as above. aceous partings. 10 1, 059 -1, 077 Recovered 17 ft: '4 3 ft, 1 in., clay shale as above. Clay shale as ainhove. Dip 2 ° -4 °. 6 in., siltstone, light -gray, very 11 1, 077 -1, 096 Recovered 18 ft: sandy, slightly argillaceous, non - Clay shale as above. calcareous, friable; carbonaceous 12 1, 096-1, 111 Recovered 16 ft 9 in.: partings abundant in upper 1 Clay shale as above. Very good in. of siltstone, totaling about shaly cleavage dips 2 ° -4 °. half the rock. 13 1, 111 -1, 130 Recovered 18 ft 6 in.: 9 ft 5 in., clay shale as above but Clay shale as above but more silty; with common Light- to very common siltstone laminae. Silt- light -gray siltstone laminae and stone rarely slightly calcareous. beds as much as 2 in. thick, Dip 2 ° -4 °. totaling about 15 percent of 14 1, 130-1, 150 Recovered 18 ft: the rock. Carbonaceous part - Clay shale as above but becomes ings present in some of the silt - claystone, with irregular fracture, stone. Beds lie approximately in basal 1 ft. flat. 15 1, 150-1, 169 Recovered 19 ft: 1 ft 8 in., siltstone, light- to 15 ft, claystone, medium -gray, medium -light -gray as above but slightly to very silty, micaceous, with common carbonaceous and noncalcareous; rare slightly cal- argillaceous laminae in upper careous laminae. Slickensides part. at 1,154 ft dip about 45 °. 22 1, 284 -1, 296 Recovered 11 ft: 4 ft, clay shale, medium -gray, very 7 ft 3 in., interbedded claystone, slightly micaceous, noncalcar- medium -gray, very silty, and eons; very good shaly cleavage. very argillaceous light -gray fri- Very fine laminae and partings able noncalcareous siltstone; all of siltstone common. Dip 3 °. broken and infiltrated with 16 1, 169-1, 189 Recovered 19 ft: drilling mud. Beds are i -8 in. 7 ft 6 in., clay shale as at base of thick and are predominantly 1 core 15. shale in upper part and siltstone 5 ft, claystone as at top of core 15. in lower part. Dip less than 3 °. Rock breaks at 45° angle more 3 in., sandstone, medium- light- commonly than along bedding gray, fine- to very fine grained, planes, which lie approximately very calcareous, hard. flat. Some slickensides dip 45 °. 2 in., sandstone, light -gray, very 2 ft, clay shale with good shaly silty and argillaceous, noncal- partings; common laminae silt- careous, friable; grades into unit stone. below. 3 ft, claystone as above. 10 in., siltstone, light -gray, very 1 ft 6 in., clay shale, as above. sandy at top; grades to medium - 17 1, 189 -1, 208 Recovered 17 ft 6 in.: light -gray, slightly sandy and Clay shale as above but with fair argillaceous at base. shaly cleavage dipping 2 ° -4 °. 2 ft 6 in., claystone, medium -gray, 18 1, 208-1, 227 Recovered 19 ft: slightly to very silty, slightly Claystone as in core 15. Small micaceous, noncalcareous; scat - carbonaceous plant fragments tered flakes of carbonized plants. common at 1,213 ft. Fair shaly 23 1, 296 -1, 316 Recovered 17 ft: cleavage present in a few short 2 in. claystone as at base of core 22. (under 6 in.) intervals. 7 ft 3 in., siltstone, light -gray and 19 1, 227 -1, 247 Recovered 20 ft: very sandy to medium -gray Claystone as above but with and very argillaceous, noncal- carbonaceous plant fragments at careous, friable; rare to abundant 1,235 ft. medium -gray clay shale laminae 20 1, 247 -1, 267 Recovered 19 ft: and rare carbonaceous partings. Clay shale, as in cores above. Beds lie approximately flat. Good shaly cleavage except at 9 ft 7 in., clay shale, medium - few short intervals of rock where gray, slightly silty, noncalcar- cleavage is poor. Beds dip eons; fair to poor shaly cleavage. 2 ° -3 °. Two 2 -in. beds of light- Rare silty laminae. A I -ft gray noncalcareous sandy silt- interval of rock between 1,309 stone between 1,259 and 1,260 ft and 1,3I0 ft has irregular ft. At 1,264 ft is a 6 -in. bed fracture instead of shaly clean- of interlaminated light -gray silt- age. Beds dip less than 3 °. stone and medium -gray clay 24 1, 316-1, 336 Recovered 19 ft: shale; laminae and thin beds 9 ft, claystone, medium -gray, (as much as 1 in. thick) of slightly to very silty, micaceous, friable siltstone abundant be- noncalcareous. Irregular frac- tween 1,265 and 1,266 ft. ture, commonly breaks at 40 -50° 600 EXPLORATION* NAVAL PETROLEUM RESERVE NO. 4, LAST:A, I944 -53 Lithologic description-Continued Lithologic description -- Continued Core Depth (hit) Remarks Core Depth (feet) Remarks angle; some surfaces have slick- 4 °. Some partings carbonaceous. ensides. Light - yellowish -gray clay iron - 9 in., siltstone, medium -light -gray, stone present at top. very argillaceous, noncalcareous, 33 1, 772 -1, 792 Recovered 20 ft: . massive. Base of bed dips 30 °. 15 ft 6 in. Clay shale, as above, 9 ft 3 in., claystone as above. but with very poor shaly cleav- 25 1, 336-1, 355 Recovered 18 ft 6 in.: age possibly dipping as much as Clay shale, as at base of core 23, 10 °. A 6 -in bed of light -gray but with scattered flakes of car- very fine grained argillaceous, bonized plants; fair shaly cleav- micaceous sandstone P resent at age dips about 25 °. Shells of 1,774 ft. Yoldia cf. Y. kissoumi McLearn, 4 ft 6 in., clay shale as at base of core a pelecypod at 1,353 and 1,354 ft. 32 above. Beds dip less than 4 °. 26 1, 355-1, 375 Recovered 16 ft, 3 in.: 1, 792 -1, 930 Clay shale, medium -gray, very slight - CIay shale as above; poor shaly ly silty, noncalcareous. cleavage dips 15 ° -20 °. Lower 4 1, 930-1, 950 Clay shale, black, fissile, very pyritic; ft of core not silty, and has slick- well- rounded fine to coarse grains ensides dipping 20 ° -40 °. Rock of clear quartz commonly with pol- infiltrated with drilling mud. ished or pitted (not frosted) sur- 27 1, 375-1, 395 Recovered 12 ft: faces, scattered throughout. Top 11 ft, drilling mud and clay shale of pebble shale at 1,930 ft. fragments as at base of core 26. 34 1, 950-1, 970 Recovered 20 ft: 1 ft, claystone fragments, medium- Clay shale, dark -gray to grayish - gray, very silty, noncalcareous. black, silty, slightly micaceous, 28 1, 395-1, 415 Recovered 18 ft: noncalcareous; rare to common 10 ft, clay shale, medium -gray, grains, lines, and nodules of py- very slightly silty, noncalcareous. rite. Small roughly cylindrical Poor shaly cleavage dipping 10 °- 15°. Carbonaceous particles com- masses of finely crystalline pa rite also common; some are as mon in part; silty laminae very 1 ,_ much as ,a in, in diameter and rare. Bedding -plane slicken- 1 in. long, with the long axis sides rare. nearly vertical; some have irreg- 8 ft, claystone. Like clay shale ular bits of white calcite in the above but with irregular fracture. center, and others have a thin 29 1, 415-1, 435 Recovered 18 ft: coating of calcite separating the Clay shale as in core 21 above but pyrite from the enclosing shale. with common slickensides dip- ping 10 ° -50 °. Very poor shaly ins longitudinal, closely e paced ° lines, resembling structure com - parting dips 15 -20 ° . monly preserved in carbonized 30 1, 435-1, 453 Recovered 15 ft: wood, rarely present and suggest Clay shale as above but with inter- that the pyrite may have re- vels of clay shale fragments placed twigs or small fragments mixed with drilling mud. of wood. Well- rounded, fine to 1, 453 -1, 653 Clay shale as in cores above. coarse grains of clear quartz and 31 1, 653-1, 663 Recovered 5 ft 8 in.: gray or black chert scat end, Clay shale, medium -dark -gray, singly or in very small groups, very slightly micaceous and through the rock. Well- rounded silty, noncalcareous. Very poor shaly cleavage dips about 10 °. granules eter) of black much chas ert ra re, in diameter) 1, 663 -1, 752 Clay shale, medium -gray, silty in isolated. Rock has as very rare and very poor part, noncalcareous; some thin shaly cleavage and probably lies beds of light -gray calcareous silt- flat. White pelecypod shell frag- stone and light -gray very fine ments at 1,954 ft. grained silty calcareous sandstone. Sandstone slightly pyritic in part. 35 1, 970-1, 971.5 Recovered 6 in.: Top of Oumalik formation at Clay shale as above. 1,730 ft. 36 1, 971. 5 -1, 990 Recovered 18 ft 6 in.: 32 1, 752 -1, 772 Recovered 13 ft 6 in.: Clay shale as above. A 6-in. bed 5 ft, clay shale fragments, medium- of brownish -gray very dense dark -gray, very slightly silty argillaceous limestone with con - and micaceous, noncalcareous; choidal fracture present 3 ft badly infiltrated with drilling below top. Rare rounded chert mud. pebbles. Common fragments of 2 ft, sandstone, light -gray, very pyritized wood. Norm tube( ?) fine grained, very silty and argil- found at 1,973 ft, and a pelecy- laceous, noncalcareous, composed pod Lima sp, at 1,977 ft. of subangular grains of clear and 37 1, 990-2, 010 Recovered 15 ft 10 in.: white quartz and some dark rock 4 ft 1 in., clay shale as above; and rare yellow grains. Small pelecypod shell fragment at flakes of carbonized plants com- 1,994 ft. mon on some bedding planes. 9 in., sandstone, olive -gray, very 6 ft 6 in., clay shale, medium -dark- fine grained, very silty and gray, slightly silty in part, non- argillaceous, slightly calcareous, calcareous; common laminae thin- bedded; some carbonaceous light -gray siltstone and good particles on shaly cleavage dipping less than of angular to s bangular grains CORE•STS AND TEST WELLS, BARROW AREA, 601 Litltologic description - Continued Lithologic description- Continued Core Depth (feet) Remarks Core Depth (feet) Remarks of clear and white quartz and fishbone fragments scattered in dark rock fragments. Well- lower 5 ft. Slickensides at rounded clear quartz grains 2,150 ft. typical of clay shale above and 46 2, 153 -2, 171 Recovered 20 ft: below are absent. Beds dip less Clay shale as above but with flat than 5 °. well- rounded nodule of hard 11 ft, clay slifkle as above. Nine black noncalcareous very silty sidewall cor. • taken between clay stone at 2,165 ft. Slicken- 1,996 and 2,008 ft; seven of • sides at 2,170 ft. Pelecypod these, at 1,992, 1,996, 1,998, shell fragment at 2,157 ft. 2,000, 2,002, 2,006, and 2,008 ft 47 2, 171 -2, 178 Recovered 6 ft 9 in.: consisted of clay shale as in the 5 ft 6 in., clay shale as above; core; the other two were not pelecypod shell fragment at available, but were described at 2,176 ft. well site as shale. 3 in., sandstone, light -olive -gray, 38 2, 010-2, 030 Recovered 20 ft: very fine grained, moderately Clay shale as above; pelecypod calcareous. shell fragments at 2,011, 2,013, 1 ft., clay shale, light- brownish- and 2,016 ft. gray, very slightly silty, cal-. 39 2, 030-2, 050 Recovered 20 ft: careous. Poor shaly cleavage Clay shale as above but with very dips less than 5 ° . poor shaly cleavage dipping 48 2, 178 -2, 198 Recovered 19 ft: about 5 °. A 6 -in. bed of light- Clay shale as at top of core 47 olive -gray very fine grained above; siltstone and sandstone sandstone as in core 37 present at laminae common in a 3 -in. 2,047 ft; contact of shale and interval at 2,187 ft. A 9 -in. sandstone is sharp, and dips 7 °. bed of light - olive -gray very fine Pelecypod shell fragments rare; grained sandstone is at 2,188 ft. specimen of Astarte sp. was A 1 -in. fragment of carbonized found. and pyritized wood present at 40 2, 050 -2, 070 Recovered 17 ft 10 in.: 2,194 ft. 10 ft 10 in., clay shale as above but 49 2, 198-2, 218 Recovered 20 ft: with 6 -in. bed of sandstone as Clay shale as above but with ;( -in. above, at 2,056 ft. Clay shale bed of brownish -gray noncal- grades into unit below. careous claystone with con - 7 ft, claystone, similar to clay choidal fracture, at 2,217 ft. 1 shale, but slightly calcareous in Pelecypod Entoliumn sp. and upper part and with irregular unidentified brachiopod found fracture. Pyritized plant frag- at 2,212 ft. ment at 2,069 ft. 50 2, 218 -2, 228 Recovered 3 ft: 41 2, 070 -2, 087 Recovered 17 ft: 2 ft, clay shale as above. Drilling mud with chips of clay 1 ft, sandstone, medium - light -gray, shale as above. - very fine grained, silty, argilla- 42 2, 087 -2, 106 Recovered 14 ft 6 in.: ceous, calcareous, thin - bedded; Clay shale as above but with poor composed of subangular to cleavage dipping less than 5° angular grains of clear and white Basal 2'i ft is in fragments and quartz, gray chert, and dark is mixed with drilling niud. rock fragments. Base of sand - 43 2, 106-2, 116 Recovered 10 ft: stone contains flakes of black 5 ft, clay shale as above. Beds lie shale as much as one - eighth -in. approximately fiat. An 8 -in. in diameter. Beds lie approxi- bed of brownish -gray hard cal - mately fiat. cafeous clay shale present at 51 2, 228 -2, 248 Recovered 20 ft: 2,108 -2,109 ft; fishbone frag- 11 in. clay shale as in core above. ment was embedded in it. 8 in., sandstone as in core 50. 8 in., sandstone, light- brownish- 18 ft 5 in., clay shale as above. gray, very fine grained, moder- Beds lie approximately flat. ately calcareous, massive; scat- 52 2, 248-2, 265 Recovered 12 ft 4 in.: tered small flakes of carbona- 4 ft 8 in., clay shale as above. ceous material. 1 ft 4 in., sandstone, medium - 4 ft 4 in., clay shale as above. light -gray, fine to very fine 44 2, 116 -2, 136 Recovered 17 ft: grained, silty, calcareous, mar 8 ft 6 in., clay shale as above. sive; composed of angular to 2 ft 4 in., sandstone, light- subangular grains of clear and brownish -gray, very fine grained, white quartz with some gray very silty and argillaceous, non- chert and dark rock fragments. calcareous; composed of sub- 6 ft 4 in., clay shale as above. angular grains of clear and white A 3 -in. bed of light -olive -gray quartz and dark rock fragments. claystone with conchoidal frac- 1 ft 2 in., clay shale, brownish -gray, ture present at base of core. slightly silty, micaceous, non- 53 2, 265 -2, 279 Recovered 14 ft: calcareous; poor shaly cleavage. Clay shale as above, but with 5 ft, clay shale as at top of core. pelecypod Entoliunt? sp. at 2,275 45 2, 136-2, I53 Recovered 17 ft: ft, Pleuromya sp. at 2,276 ft, and Clay shale as above but with Flat•entic? at 2,277 ft. • • ! . 602 EXPLORATION OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, 1944 -53 Lithologic description -- Continued Lithologic description- Continued Core Depth (feet) Remarks Cure Depth (feet) Remarks 54 2, 279 -2, 287 Recovered 8 ft: grades with siltstone and streaks 6 ft 8 in., clay shale as above. and patches of medium -gray clay 1 ft 4 in., sandstone as in core 52 shale totaling 5 -30 percent of the but noncalcareous. rock. Gastropod found at 2,379 55 2, 287 -2, 307 Recovered 19 ft 6 in.: ft and ammonite, Tmetoceras sp., 1 ft, sandstone, medium -dark- of Middle Jurassic age, at 2,391 gray, slightly silty and argilla- ft. (Imlay, 1955, p. 82.) ceous, slightly calcareous; com- 63 2, 391 -2, 400 Recovered 9 ft: position as in sandstone above. Sandstone as in core 62. Rare Dark color caused by coating white oolites, the size of medium of dark -brown organic material sand grains, in some of the rock. (carboniferous or petroliferous ?) Pelecypod Oxylorna sp. found at on and between grains. 2,399 ft. 3 ft 6 in., clay shale as above but 64 2, 400-2, 420 Recovered 18 ft 6 in.: with gradual increase in coarse Sandstone as above. A 4 -in. and sand grains and granules, so that a 6 -in. bed of sandstone present the lower part of the rock is at 2,406 and 2,413 ft, respec- dark -gray conglomeratic silty tively, are brownish gray, quartz - sandy claystone. Pebbles are itic, very fine grained, very silty of well- rounded black chert, and argillaceous, and hard and and sand grains are well- rounded have subconchoidal fracture that dark chert and clear quartz, breaks across grains. Sand com- as in overlying rock, with some posed of subangular grains of pebbles of hard black clay shale. clear quartz and some white 15 ft, clay shale, dark -gray, silty; quartz and large amount of scattered well- rounded grains brownish -gray silty noncalcar- of clear quartz and chert, as in eous cement. Rare fragments clay shale in core 54. Beds lie of pyritized and carbonized wood approximately flat, but slicken- as much as 2 in. long and 1 in. in sided fractures in lower 4 ft of diameter. core dip 30 ° -40 °. 65 2, 420-2, 7 ft: 56 2, 307 -2, 322 Recovered 15 ft: -2, 440 Recovered as above. 13 ft, clay shale as at base of core 66 2, 440 -2, 443 Recovered 2 ft 4 in.: 55. Fishbone fragments at 2,308 ft. Sandstone as above but with 2 -in. 2 ft, claystone, grayish - black, con- bentonitic shale at light-gray-green glomeratic, carbonaceous; com- clay base, posed of well- rounded sand T some argillite fragments. grains, granules, and pebbles of 67 2, 443 -2, 445 No recovery. chert and clear quartz scattered 68 2, 445-2, 446 No recovery. through matrix. 2, 446-2, 454 Argillite; some is black, siliceous, 57 2, 322-2, 328 Recovered 5 ft: carbonaceous, fissile, and some is Conglomeratic claystone as at base bluish black, very siliceous, and of core 56. hard, and has blocky fracture. 58 2, 328-2, 332 Recovered 3 ft: 69 2, 454-2, 457 Recovered 4 in.: 6 in., conglomeratic claystone as Argillite, bluish - black, siliceous, above. Base of claystone con- slightly carbonaceous and p sists of a layer of granules and ride, hard; splintery fracture pebbles partly embedded in top that breaks more easily parallel of underlying sandstone. Con- to faint traces of bedding. tact is sharp and flat lying and Rock was described by Charles h Milton (written communication, has only minor irregularities. 2 ft 6 in., sandstone, light - olive- August 1949) as a "black sili- gray, very fine grained, silty, ceous carbonaceous shale, slightly argillaceous, noncalcareous; com- pyritic in spots. * s It is a posed of angular to subangular marine sediment, possibly of grains of clear quartz and some volcanic origin, with a radio - white quartz and dark rock frag- pos ( ?) fauna. Soon after de - ments; sandstone is massive. position continuing volcanic ac- 59 2, 332 -2, 341 Recovered 9 ft: - tivity (nearby intrusive rocks or 6 in., sandstone as above. lava flows ?) may have carbonized 8 ft 6 in., siltstone, light -olive -gray, the organic matter of the sedi- slightly to very argillaceous; ments, and alumina, hydrothermal silica replaced alu rare to abundant small irregular mina, etc., of the patches and streaks of medium- ash, and earlier formed crystals." gray clay shale ranging from 2 70 2, 457 -2, 470 Recovered 4 in.: to 50 percent of the rock. Argillite as above. 60 2, 341 -2, 356 Recovered 10 ft: 2, 470-2, 482 Argillite as above. Siltstone as above. 71 2, 482 -2, 487 Recovered 1 ft: 61 2, 356-2, 375 Recovered 9 in.: Argillite, bluish - black, siliceous, Siltstone as above. small fragments, as in core 69. 62 2, 375 -2, 391 Recovered 14 ft: 2, 487 -2, 505 Argillite as above but with some .Sandstone, light- olive -gray, very bluish -gray to medium -light -gray fine grained, very silty and argil- chert in basal 5 ft. laceous, noncalcareous; inter- • • • CORE TESTS AND TEST WELLS, BARROW AREA, ALASKA 603 CORE ANALYSES A study of the reservoir characteristics made at Porosity and permeability tests on sandstone samples Pennsylvania State College by S. T. Yuster tested the from South Barrow test well 2 (see following table) were Permeability of selected sandstone samples to brine, made with the same equipment as that used for the first fresh water and oil, as well as air. (See following table Barrow test well. In many tests, two plugs were made on reservoir properties.) from the same sample so that the permeability could be tested with the air flow both perpendicular and parallel Reservoir properties of sandstone samples frcrn South Barrow lest well 2 to the bedding. Porosity was usual tested on only Klinkenberg perme- Liquid permeability one of the two plugs. It was found to range from 5.5 ability (m ill idarc}s) (millidarcys) to 25.3 percent, and most determinations were more Depth (feet) Porosity Oil (percent) Before After Fresh (through than 10 percent. Permeability ranged from 5.0 to 108 liquid liquid Brine water brine - millidarcys, and the rock was generally more permeable now flow ` mpl ) parallel to the bedding than normal to it.. 2,023 16.8 18.3 12.3 4.52 1.81 6 9 2,124 17.6 90.4 28.1 7.65 4.35 arbonate content was determined for a few sam- 2,170 13.7 37.4 11.6 1.18 1.00 ples -at 1,762 feet it was 8.8 percent; at 1,999 feet., a 2'173 10.4 .57 .2 .038 .0275 trace; and at 2,023 feet, 19.6 percent. Two samples from 2,397 feet had 2.9 and 2.8 percent carbonate, and The sandstone is composed primarily of very fine and fine-grained sand, with some silt and clay. (See follow- 2 samples at 2,416 feet had 1.7 and 1.6 percent. ing table on sieve analyses.) Petrographic analyses by Porosity and permeability of sandstone samples from South Paul D. Krynine show the constituents to be quartz, Barrow test well 2 chert, rock fragments, and a small amount of feldspar and other minerals, and he classifies the rock as gray - Depth Porosity Permeability Depth Porosity Permeability wacke. Results of his analyses, made on thin sections, (feet) (percent) (millidarcys) (feet) (percent) (millidarcys) are presented in the following table on petrographic 1,299 25.3 50.0 2,286P 1,299 22.3 40.0 2,287N I8.4 5 characteristics. 1 1, 77 762 4 24.3 14.5 2,2 18.8 SO. °o Specific gravity determinations of sandstone and shale 1,979 1 16.2 14.3 2,28SP 18.4 104.0 samples are given in the following table on specific 1,999? 2.__.. 19.2 2,330N 20.8 32.7 g 2,023N 18.3 50.0 2,330P 20.6 2,023P 80.0 2,331N 20.1 7S. 0 gravity. 2,024N 19,8 70.0 2,331P 108.0 24N 67.0 2,341N 22.5 8 Sieve analyses of sandstone samples from South Barrow test welt 2 13.7 5.3 2,341P 20.0 13.3 using American Society for Testing Materials sieves 2,047P 14.1 6.8 2,346N 17.0 <9 2,056N 20.0 11.7 2,346P G9 2,111N <7.0 2,356N 7.8 <8 2,111P 8.8 <7.0 2,386P 9.2 <9 Grain sizes (percent) 2,126P 19.2 2,375N 21.4 13.2 2,1 21.1 25.5 2,375P 17.8 Depth (feet) 2,170N 16.9 32.7 2,378N 21.9 18 35 60 mesh 120 mesh mesh <325 2,170P 17.0 45.0 2,378P 11. 7 mesh mesh 2,176N <6.0 2,383N 24.0 02.5 (medium) mesh (very (st mesh Total 2,176P 7.3 <7.0 2,383P 91. 0 (coarse) (coarse) (fine) (fine) and (clay) 2,1S3N 6.8 2,317N 16.1 10.4 clay) 2,188P 10.5 4.8 2,397P 2,193N -_ <7.0 2,404N 19.2 17.1 1,762 2,198? 6.4 <7.0 2,404P <11.0 1,909 Tr. 4.3 59.2 8.0 1 6.1 I00.1 2,227\ <11.0 2,406N 2 Tr. 4 49.9 5.7 10.9 10x).1 P 19.9 12.0 2,023 5.5 <8.0 2,406P 8.3 2,047 Tr. 41.2 37.5 5.2 1 1 2,227 • 2,221'7 17.0 34.5 2,416N 15.4 5.7 2,056 Tr. 42.0 40.4 5.0 1 100.0 2,229P 16.4 49.5 2,416P <5.0 2,111 Tr. 42.0 27.5 5.0 19.4 109.9 . 30N 12.2 9.7 2,126 0.82 2.03 52.8 32.7 5.7 9.33 0 9.08 2,254N 12.5 13.0 2,4 2,254P 11.9 9.0 2,430P <4.0 2,170 Tr. 67.8 10 .7 3.1 7.4 100.0 2,2S6N 11.0 2,179 Tr. 2.57 64.60 10.00 4.69 9.35 100.01 2,330 .57 64.60 20.90 4.59 9.35 100.01 2 3x0 .04 .74 32.2 53.7 7.16 6.2 100.04 1 N, plug cut normal to the bedding. 0.41 .16 .04 6.59 77.20 4.12 11.5 100.02 2 P, plug cut parallel to the bedding. 2,406 51.8 28.1 4.0 16.8 100.7 0 Petrographic characteristics of sandstone from South Barrow test well Q [Determined by Pnul D. Krynine] Depth in feet t1 I,702 1,999 2,023 1 2,047 I 2,056 2,111 I 2,126 2170 2,176 I 2,188 2,198 I 2,331 2,350 2,397 2,430 C O Texture ^.J Average diameter range mm__ 0.02 -0.11 0.015 -0.15 0.04-0.20 0.02 -0.20 0.03-0.35 0.04-0.30 0.03 -0.20 0.04 -0.30 0.04-0.20 0.03 -0.21 0.04 -0.30 0.04-0.20 0.02 -0.12 0.05-0.20 0.03 -0.22 Principal mode mm__ .07 .09 .14 .10 .11 .13 .13 .15 .14 .135 .16 .13 .10 .17 .15 Grains: matrix: cement 0 ratio in percent.. 77:20:3 77:15:8 82:17:1 77:15:8 76:20:4 71:8:20 78:17:5 82:11:7 74:8:18 67:18:15 76:9:15 85:14:1 65:5:30 78:29:3 70:29:8 7., Grain composition in percent > C 7. Quartz 50 45 37 38 27 25 32 35 35 33 45 38 45 46 48 C' Chert 10 13 20 20 20 28 22 27 30 22 18 28 15 22 18 Feldspar 6 3 '7 2 2 3 5 2 1.5 1 Trace 1 h7 Mica flakes (large) 1 Traco 2 2 Trace Trace Traco 01 Slate, phyllite 5 13 20 14 20 12 12 14 9 11 12 20 4 Trace 1.5 Quartzite, schist 1.5 Traco Traco 1 3 2 3 1.6 1 2 1.5 1 Trace 2.5 Volcanic rocks . 1.5 2 3 2 2 3 1 2 1 Trace Trace t ., Biotite Present Present tri Chlorite Present Present Present Present Present Muscovite Present Glenconite Trace Trace Traco Zircon Traco Present Tourmaline Present Present 71 llmenitc Limestone Present 1+1 Present 0 70 Interstitial material In percent C Ol Chlorite 2 1 5 6 2 1 Trace Trace 1 Traco 1 -2 t 2 -3 X Sericite } 13 -15 ( 7 8 } 6 10 4 { g } 6 3 { 12 5 } 8-9 b 29 14 -17 ill Illite Montmorillonite, kaolin- ito 5-7 3 .5 4 4 2 6 4 5 8 1 -2 4 I 3 -5 Silica cement Traco 1 1 1 2 2 1 8 Traco ; 3 1.5 1 Traco Trace Trace 9 Carbonates 3 5 Trace 7 2 18 4 4 18 12 9 Traco 30 2 7.5 r Pyrite 2 4 3 1 1.5 > 0 Pore spaco and characteristics y V Pore size, principal mode microns__ 14 35 65 30 32 20 55 50 10 23 24 32 30 12 , co Visible porosity._percent._ 1 5 8 3 6 <1 8 6 1 2 1.5 4 2 1 Residual porosity Poor Fair -poor Good Poor Good Poor Good Fair Poor Poor Poor Fair -poor Poor Poor 1 Bonding material Illite Illite Illite IIIite, car• Iilite, Carbonate Illite, clay Carbonate, Carbonate Carbonate, Carbonate, Illite Carbonate Illite- Illito, eR bonates chlorite silica, Mite illito silica siderite sericite w Clay-coated wall area Wall coating, type ercent.. Mite, Illite Illite Illite, Illite Carbonate IIIite Illite, Carbonate Iilite Illite Mite Carbonate, Illi Illite, kaolinite chlorite chlorite illite clay Mite Mite sericite Potential hydration High Moderate High Illgh Moderate Moderato High High High Moderate Moderate Moderate Low High High ' CORE *TS AND TEST WELLS, BARROW AREAIRASKA 605 ,Specific gravity of selected samples from South Barrow test well 2 Oil and gas shows in South Barrow test well 2- Continued Depth (feet) Specific Rock type Depth (feet) Recorded by Arctic Contractors' Recorded by Fairbanks gravity geologist, William C. Fackler laboratory 446 2. 23 Clay shale. 2,023-2,025 Fair show of oil and gas Sandstone 7 in. thick saturated with oil. 665 2. 27 Do. 2, 047 do Slight fluorescence, dark -brown 965 2. 33 Do. cut in petroleum solvent. 1,097 2. 32 Do. 2,055 . do Sandstone 6 in. thick had slight fluorescence, dark -brown cut 1,265 2. 21 Clay shale and sandstone. in petroleum solvent. 1,323 2. 34 Siltstone. 2,087-2,105 Shale bled slight amount of gas_-_ 2, 111 Slight show of oil Sandstone 6 in. thick is oil 1,447 2. 38 Clay shale. ' stained, showed slight fiuores- 1,754 2.09 Interbedded' sandstone and cence. clay shale. 2,125- 2,128 Slight show of oil, light- straw- 1,762 2. 14 Sandstone. colored cut in ether. do 1,965 2. 40 Siltstone. 2, do Sandstone 3 In. thick is oil 1,999 2. 18 Sandstone. stained. 2,185 Slight show of oil 2,020 2. 37 Siltstone. 2, 189 do Sandstone 9 in. thick is oil 2,023 2.14 Sandstone. stained. 2,037 2. 42 Do. 2, 218 -2, 228 do Sandstone 1 ft thick has slight 2,047 2. 17 Do. oil odor. 2, 229 Very slight show of oil 2,056 2. 16 Do. - 2, 254-2, 255 do 2,062 2. 41 Do. 2, 286-2, 2S9 Slight show of oil, pale- straw- Sandstone 2 ft 4 in. thick has an 2,111 2. 33 Do. colored cut In lower part. oil odor on a freshly broken surface with oil stain and odor 2,152 2. 30 Siltstone. in lower part. . 2,170 2. 27 Sandstone. 2,328 -2,340 Stain and odor of oll and straw - 2,176 2. 64 Do. colored cut in ether. 2, 329 2, 332 Sandstone 2 ft 10 in. thick bas a 2,188 2. 27 Do. strong oil odor and brown oil 2,227 2. 46 Do. stain; it fluoresces pale yellow. 2,229 2. 18 Do. 2,332 -2,341 Interbedded sandstone, siltstone, and clay shale have an odor of . 2,255 2.28 Do. oil. 2,288 2. 14 Do. 2,353-2,356 Sandy siltstone has very slight 2,330 2. 21 Do. oil odor. 2,375 2,420 Sandstone has very slight oil 2,440 .2. 61 Siltstone. odor on freshly broken sur- 2,484 2.44 Argillite. faces. FORMATION TESTS At South Barrow test well 2, R. H. Morris, who Several formation tests recovered a small amount of studied the samples, identified two heavy- mineral zones. gas but no oil. They are described below. He writes that: Test 1, 1,992 -2,030 feet. -A Johnston formation the zoned- zircon zone is well represented by samples from 1,990- tester was set at 1,991 feet in a hole open to 2,030 feet, 2,330 feet. Two samples at shallower depths probably belong but the packer did not hold. A second attempt at the within this zone but zoned - zircon grains are lacking. The prismatic- tourmaline zone is represented by one sample at same depth also failed, but a third trial made after . 2,383 feet. (Written communication, 1954.) . reaming the hole to 1,992 feet was successful. Perfora- The distribution and abundance of heavy minerals is tions in the tail pipe were between 1,995 and 2,006 shown on plate 40. feet; the pressure recorder was at 2,010 feet, and the bottom of the tailpipe at 2,015 feet. The tool was OIL AND GAS open 1 hour and . 10 minutes, and a weak blow of air OIL AND GAS SHOWS was noted. The test recovered 250 feet of drilling Shows of gas and oil were noted by Arctic Contrac- mud but no oil or gas. tors' geologists who studied the samples of rock from Test 2, 2,314 -2,391 feet. -With the hole open to the well while it was being drilled. The oil was not the total depth (2,391 ft), a Johnston formation tester present in sufficient quantity to be produced, but the was set at 2,312 feet. The packer did not hold; so a gas flowed at a rate high enough to furnish heat for new seat was reamed for it at 2,314 feet, and it was the camp at Barrow. No shows were present above reset with perforations at 2,329 -2,347 feet and a pres- 1,850 feet in the well; those from below that depth sure recorder below them. A fair blow of air increased are given in the following table on . oil and gas shows. to a strong blow of gas in 12 minutes. The gate valve Oil and gas shows in South Barrow test well 2 was closed and the pressure increased to 550 psi in 26 minutes. When the valve was opened, the pressure Depth (feet) Recorded by Arctic Contractors' Recorded by Fairbanks dropped to 250 psi in 12 minutes, and to 150 psi after -- - geologist, William C. Fackler laboratory 21 minutes. The tester was open for a total of 57 1,950 -2,010 Cores of shale, siltstone, and minutes, and then was closed in for 26 minutes. When sandstone had a gas odor and bled oil and gas. Fluorescence an attempt was made to remove the tester, the packer and a fair oil cut in ether were noted at 2,001 !t. stuck, and the drill pipe came unscrewed at 825 feet, 2,000 Dark - brown oil cut in petroleum solvent. and left 33 stands of pipe and the tester in the hole. • • • 606 EXPLORATION OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, I944 -53 Test 3, 2,381 - 2,443 feet. -With the hole open to percent. helium. Its calculated heated value, at 60° F the total depth of 2,443 feet, a seat was reamed for a and 30 inches of niercury, was 1,018 Btu per cubic foot. Johnston formation tester packer at 2,382 feet. The Two gallons of condensate were taken from the packer seated at 2,381 feet, with the perforated tailpipe high- pressure separator during the month of January at 2,391 -2,410 feet and a pressure recorder below it. 1950 and were analyzed by three processes. About The tool was open for 30 minutes, during which time a quart was submitted to the National Bureau of a weak blow of air was noted. The bottom 95 feet Standards, where 900 ml (milliliters) were distilled at of drill pipe contained gas -cut mud which has 38 grains a fast rate through a 25 -min Podbielniak column. per gallon of chlorides. The flow pressure was too low The specific gravity of the sample (at 60° F, compared to be recorded on the pressure chart. to that of water at 60° F) was 0.8217, and its refractive Test 4, 2,260 -2,265 feet. -The packer of the Johnston index at 20° 0 was 1.4508. The first 8 fractions, which formation tester was set at 2,211 feet, with 41 feet of boiled in the gasoline range, constituted 46.4 percent perforated pipe below it, and a pressure recorder at of the material. The remainder boiled in the kerosene 2,223 feet. The hole was cased to 2,260 feet and was range, but could be divided into other products such open to the cement plug at 2,265 feet. A fair to weak as naphtha. High density and refractive indices blow of air changed to gas in 29 minutes, at the end indicate the presence of a considerable quantity of of the test. The tool was closed, and 168 feet of heavy aromatic hydrocarbons. The motor method octane gas -cut mud was recovered. number (American Society for Testing Materials, D 357) is 68. The results of the distillation are shown OIL, GAS, AND WATER ANALYSES in the following table. Several samples of water and gas and one of con- densate were taken from South Barrow test well 2 Analysis of 900 milliliters of condensate from South Barrow test while the well was being drilled and during the first well 2, made by the 1Vational Bureau of Standards year of production. Analyses were made by the U.S. Refractive Density Bead tem- Bureau of Mines and the National Bureau of Standards Fraction V olume Volume index at at 20 C perature . _ (ml) (sum ml) 20 C (g per ml) (° 0) and are presented as follows. (D-line) A sample of gas from 2,320 feet (probably from the Initial formation test at 2,312 -2,391 ft was anal zed b the 2 50 5o 1.4039 0.735 10 3 y 51 I01 1.4271 .770 119 3 50 151 1.4375 .792 142 National Bureau of Standards with a mass spectrometer 4 50 201 1.4407 .798 156 and was found to consist of 28.6 percent air (nitrogen 5 50 251 1.4444 .806 165 P ( g 6 50 301 1.4436 .805 172 and ox en and 71.4 percent of other 7 32 333 1.4464 .812 173 3 g ) p gasses; when 7a 35 368 1.4452 .809 181 burned it produced 714.5 Btu per cubic foot. Com- s 5 4 1.45466 .826 1211 ponents of the gas, figured on an air -free basis, were 11 50 518 1.4567 .830 227 50 558 1.4567 .833 227 12 50 618 1.4586 .836 233 approximately 98.3 percent methane, 1.0 percent 13 50 668 1.4598 .839 237 ethane, 0.2 percent propane, 0.01 percent n-butane, 14 50 718 1.4612 .840 247 P P P P , 15 50 768 1.4640 .845 263 1.467 .862 0.004 percent n- pentane, and 0.5 percent carbon dioxide; i7 55 836 823 1.4731 .853 276 the gas produced 1,014.2 Btu when burned. Residue =__ 33 869 .878 A gas sample was taken May 29, 1949, about 6 ' Distillation was carried out at reduced pressures after fraction 7a was collected weeks after the well was completed. It was flowing because the m appeared to be acking. e pomperaturt hat P g was 223° C. Temperatures from fraction 8 through Th t 17 were te corrected e a to t 760 mm Lime . at an estimated rate of 500,000 cu ft per day, and the D 2 , 31 m1 f Lippincott's chart. welded- casing container was flushed by the flow for about 5 minutes before the sample was taken. The A second sample of the condensate was sent to the gas temperature and pressure at the tubing head, where U.S. Bureau of Mines laboratory at Bartlesville, Okla., the sample was taken, were 28° F and 960 psi, re- and the results of their routine analysis are shown in spectivel . The gas was analyzed by the Helium Sta- the following table. The sample is unusual because tion of the U.S. Bureau of Mines at Amarillo, Tex., almost all the material is in the naptha and light gas with a mass spectrometer; helium and acid gases oil range, and hydrocarbons boiling below 200° F, corn- (carbon dioxide and hydrogen sulphide) were tested by mon in most condensate samples from gas wells pro - separate special analyses. The gas was found to con- ducing little liquid, are nearly lacking. A comparison sist of 97.95 percent methane, 1.00 percent ethane, 0.21 with an analysis made in Fairbanks, Alaska (see below) percent propane, 0.07 percent normal butane, 0.01 indicates that the sample sent to the Bureau of Mines percent isobutane, 0.73 percent nitrogen and 0.03 had weathered before the analysis could be made. • • • • CORE TESTS AND TEST WELLS, BARROW AREA, ALASKA 607 Analysis of a sample of condensate front South Barrow test well 2, was strongly alkaline. It was tested for CaC1 which by the U.S. Bureau. of Mines had been introduced into the well, but the result was (General characteristics of sample: Sp gr, 0.822; sulfur, <0.1 percent; Saybolt Uni- versal viscosity at. 100 F, 32 sec; gravity, 40.6 API; pour point, -70' F; color, Ilegative. lighter than Natl. Petroleum Assoc. color No. 1] Distillation, Bureau of Zones routine method On Janualy 30, 1950, two gas samples were caught in steel bombs; one, 320 ml taken at 1,020 psi and Cut at- Grav- Ani- Per- Sum Specific ity Corre- line 27.5 ° I.?, came from the well head; the other, 320 ]nl at Fraction cent (per- gray- ( API lation pain (° C) I (° F) cent) ity 1 a I , ) index ( C) 80 psi and 29° F, was taken after dehydration. Valve packing leaked during transport of the samples to the STAGE 1- Distillation at atmospheric pressure, 750 mm Hg; first drop, 75 C (167 F) National Bureau of Standards, lowering the pressure of 1 1�2 the former to 400 psi and the latter to a value almost 50 2 75 167 too low to determine the water content. Analyses are 3 100 212 I.8 1.8 0.721 64.8 4 125 257 3.4 5.2 .754 56.2 28 47.2 shown in the following table on mass spectrometer 5 150 302 7.9 13.1 ' .782 49.5 34 45.8 6 1212 75 347 19.1 32.2 .804 44.5 3 47.9 analyses; the water content, determined by the Weaver 7 392 26.3 58. .8 40. 40 3 52.5 8 225 437 26.7 85.2 .838 37.4 42 5356. calorimetric method, was 0.66 percent for the well-head 9 2 250 482 12.1 97.3 .855 34.0 . 6 Residuum e___ 2.6 99.9 .879 29.5 sample, and 0.11 percent for the sample that had passed I Specific gravity at 60 F compared to water at 60 F. through the dehydrator. This quantity of water was = Distillation discontinued at 249 C (480 F), flask dry. too small to be detected by the mass spectrometer; a Carbon residue of residuum, less than 0.1 percent; carbon residue of crude, Less than 0.1 percent. the table shows that treatment by the dehydrator did Approximate summary not change the composition of the gas significantly, Specific Gravity except t for the water content. Constituent Percent gravity (° API Universal viscosity Mass spectrometer analyses of two gas samples from South Barrow Light gasoline 1.8 0.721 64.8 test well 2 Total gasoline and naphtha 58.5 .604 44.5 Kerosene distillate 38.8 .843 36.4 (Analysis by Natl. Bur. Standards] Gas oil Nonviscous lubricating distillate 50-100 - Medium Lubricating distillate 100 -200 Component Well head sample Dehydrated sample Viscous lubricating distillate x 2200 (mole percent) (mole percent) Residuum 2.6 .879 29.5 _ Distillation loss . Methane 97.7 97.7 Ethane -1. 04 1. 04 . An analysis was made in the Fairbanks laboratory Nitrogen . 94 . 94 of the U.S. Geological Survey by E. Lloy P owers, Carbon dioxide_ 20 .20 Propane . 03 . 03 petroleum engineer, who distilled samples of the con - Butane 1 .04 .03 densate at atrnospheric pressure. One 100 -m1 sample Pentane 1 .02 .03 had an initial boiling point of 100° F, and 2 percent of the liquid was distilled at less than 120° F. The end a Maximum. point was 360° F. The second 100 -ml sample had an LOGISTICS initial boiling point of 90° F, and an end point of 380° F. Personnel and housing. - Supervisors employed at the Distillation ranges, specific gravity, and API gravity of well were the drilling foreman, petroleum engineer, and the various cuts are shown in the following table. The geologist. The rig crew included 2 drillers, 2 derrick - gallon of condensate from which the distillation samples men, 6 floormen, a fireman, and a heavy- duty - equip - were taken contained approximately 20 cc of water that ment mechanic and welder; 2 LVT operators also Atmospheric distillation of condensate from South Barrow test well 2 worked at the site, hauling crews and water and oper- ating the crane and tractors. Such temporary workers Sum Specific Gravity as rig builders ' carpenters, laborers ' electricians and Distillation temperature, °F percent Cut No. gravity ° API distilled mechanics were sent from Barrow camp as their services First sample were required. The men slept and ate at Barrow camp, except for the <120 2.0 140 -165 12.5 1 0. 76 50 52 b m id s hift mea One wanigan was used to serve it in, 100-240 90.0 3 .8256 40 and one was kept for sleeping, in case transport to Barrow were impossible. A geologist's wanigan, and Second sample boiler, cement, and water wanigans made up the rest of 170 6 } 1 0.7380 CA.2 the camp. • 2 1 5 Vehicles and heavy equipment. -A bulldozer, a crane, 250 35 } 2 6078 43 , two weasels and an LVT moved men and materials; 380j } 3 .8335 38.3 ' Sclilumberger electric logging equipment was mounted • 608 EXPLORATIO1 NAVAL PETROLEUM RESERVE NO. I.ASKA, 1944 -53 . • on a special truck. Equipment used in drilling was Notes from drilling records— Continued list by Arctic Contractors as follows: Depth ( feet) Remarks 1__Ideco 62 -ft cantilever mast with crown block, racking 2, 505 After heating cement, drill pipe was Iowered to platform and finger. 2,504 ft and 47 sacks of construction cement 1_ _Cardwell drawworks, model H, skid - mounted, with con- were pumped down in order to plug hole back to trots, cathead, and rotary drive assembly. 2,417 ft. Cement did not harden and was I__ Caterpillar D -8800 engine for the drawworks. cleaned out to 2,497 ft. Drill pipe removed and 1__Ideal 17 }- by 44 -in. rotary table. 7 -in. 23-lb J -55 Range 2 casing set at 2,325 ft 1__Gardner- Denver 7 }i- by 10 -in. FX0 -FO mud pump. with 88 sacks of construction cement. Pumped 1_ _ Caterpillar D -13000 engine for the pump. 90 cu ft of water in ahead of cement, with a ce- 1_ _ Gardner-Denver 4- by 5 -in. pump. menting plug on top of cement. 1_ _Chrysler Industrial engine, for 4 by 5 pump. When about a third of the cement had been forced 1__Marlow 4-in. Mud Hog pump. out of the pipe, casing was pulled up to 2,308 ft. 1__Baash -;toss 100 -ton traveling block with three 30 -in. After being shut in for 39 hr, pipe was loose, and sheaves, grooved for 1 -in. line. . it was then pulled up to 2,275 ft. and plug fished 1__ Web Wilson improved 100 -ton connector. out. The 7 -in. casing was reset successfully at 1__Byron- Jackson 100 -ton hook. 2,260 ft. 1__Kewanee 32 -hp boiler, No. 578, 100 lb working pressure. Drill pipe lowered to 2,228 ft and drilling mud 1__Link -B'elt mud screen, type NRM -145. circulated to replace cement -cut mud. Well Shop -made 100 -1b. mud tanks. started to flow gas -cut mud which was light and Fuel, water, and lubricant consumption. —Fuel burned very viscous. Well closed in and pressure built during the drilling totaled 30,642 gallons of diesel oil up to 230 psi, 5 hr after hole first started to flow. and 5,670 gallons of gasoline, and 247 pounds of grease Valve opened a clay later, after pressure dropped to 65 psi, but well began to flow mud again. It and 909 quarts of oil were used for lubrication. Water . was again shut in, and pressure built up to 200 consumption was 460,500 gallons; the source was a psi; so a Shaffer control head was installed. Gas nearby lagoon. pressure dropped, because drilling mud froze in t3 a °Z hole. When it was drilled out, from 58 to 141 ft, DRILLING OPERATIONS gas pressure was still present. Drill pipe lowered The drilling rig was set on pilings, and the frozen to 1,951 ft, and as old gas -cut mud was circu- ground showed no tendency to thaw because both rig- lated out of hole, gas pressure at surface dropped, ging up and drilling took place during the winter. and no more gas came to surface. Outside temperatures were as low as 40° below zero After feeling unsuccessfully for 7 -in. casing shoe with an underreamer, an electric log located it (Fahrenheit) during November, December, and January at 2,260 ft. and down to 60° below zero in February. The interior Heated mud circulated in hole in effort to thaw of the rig was between 20° and 40° above zero most of frozen mud in annulus between 1131- and 7 -in. the time, and rarely above 50 °; its fluctuations were casing, but annulus remained blocked at pressures roughly correlative with those of the outside tempera- as high as 1,300 psi, which were great enough to tore. Operations described below were recorded by force some mud into the rock. Karl VonderAhe, Arctic Contractors' petroleum engi- Plug of 30 sacks waof ter construction cement mixed with 18 cu ft of water was put at 2,289 ft and another, neer. of 20 sacks of construction cement treated with • Notes from drilling records 1 percent CaC1 at 2,265 ft, but both were un- Depth (feel) Remarks successful. A third plug, made of 20 sacks of ' 87 Cement was stacked on platform, covered with a Oil Well regular cement and 38 lb of CaCl mixed tarpaulin, and heated with a Herman - Nelson with enough water to make a 122 ;. -4b slurry, was heater; 16 -in. (inner diameter) 42-lb Western placed at 2,265 -2,289 ft. Pipe and Steel slip -joint casing was set at 69 Small amount of fluid could be forced into the rock ft with 47 sacks of construction cement mixed with pressures of 1,400 psi, but•most flowed back with water heated to 98° F and treated with 2 into mud pit when pressure was released. percent CaC1 Top of casing cemented with 24 Cement was squeezed into annulus between 7 -in. additional sacks of cement. and 1131 -in. casing, and circulation was obtained Light -plant breakdown caused operations to be shut through the annulus as the last of the cement down for 4 }z hr. was being put in place. Cement cleaned out of 1, 059 Set 11„ -in. 47 -1b grade J -55, 8 -round thread API. 7 -in. casing, and formation test 4 made. After seamless casing at 960 ft with 130 sacks of con- test, cement plug cored between 2,265 and 2,289 struaion cement, with last 15 sacks treated with ft, and hole cleaned out to bottom; gas and faint CaC1 and water heated to 80° F. Annulus be- stain of oil noticed in mud below 2,400 ft. tween 113.; and 16-in. casings filled to cellar floor Wall surface of open hole scraped, and mud circu- with 2 }2 sacks of cement. lated to condition hole; 280 ft of 5 ;_ in. 17-lb 2, 391 Johnston tester and 33 stands of drill pipe stuck in Grade J -55 Emsco liner (with 24 rows of 20- hole for a short time, but all recovered success- mesh by 2 -in. vertical slots on 4 -in. centers super - fully. imposed on slots) was set at 2,224 ft, with a • • • CORE TESTS AND TEST WELLS, BARROW AREA, ALASKA 609 Notes front drilling records— Continued 1,020 psi. .A few days later, however, in early Decem- Depth (feet) Remarks ber, the temperature in the tubing dropped to 27.5° F, 2,505 —Con. packer at 2,226 ft. Perforations were at 2,282– and the tubing again became plugged by frozen water 2,402 and 2,473 -2,50I ft, and the bottom of the and hydrates. Above - freezing temperatures outside liner was at 2,504 ;z ft. Seventy -eight joints of tubing (2'A-in. external -upset 6.5 lb H -40 8 round the tubing fared to thaw it out, but 30 gallons of thread range 2 API seamless) were set at 2,468 ft. glycol, put in the tubing on December 23, cleaned out Christmas tree installed, and well began to flow the blockage; and the tubing cleaned itself when it gas as mud was displaced wit water. was open for 15 minutes, 3 days later. The well then PRODUCTION HISTORY produced 530,000 cubic feet of gas and about a pint of A day after the well was completed, tubing pressure fluid per day. More glycol, added in small amounts, was 670 psi, and casing pressure 820 psi, with a kept the well flowing. 3 % 4 -inch bean, and the estimated production was 4.1 After the first week in January, the flow was lowered million cubic feet of gas. While the well continued to to about 430,000 cubic feet per day; wellhead tempera- flow, producing a small amount of muddy water with tures ranged from 29° to 27° F, except when heat was the gas, the gages froze shut and had to be thawed turned off the Christmas tree radiators in order to with steam. Ice bridges formed in the hole and shut freeze a suspected leak in the 7 -inch casing. Diesel off the flow of gas. Hot CaCl solution was added, fuel, put in the hole to Iocate the break, was not re- with little effect. The bean was opened to lower the covered. In late January, production again dropped pressure in order to put sticks of fused CaCl into the somewhat, camp use fluctuating from 336,000 to 442,000 hole; the well blew gas by heads, with some mud and cubic feet per day during February. At the end of the a few pieces of ice, followed by the rest of the ice plug, month, as more stoves were connected to the line, it and gas flowed through the 54' -inch bean with great again was between 450,000 and 500,000 cubic feet force. Tubing pressure dropped slowly to 450 psi, per day. Casing and tubing pressures held steady at and the casing pressure to 800 psi. With a 2 % 4 -inch 1,020 psi. Dehydration of the gas, as its temperature bean, tubing pressure rose to 820 psi and casing pres- dropped during production, took place mostly within sure to 900 psi in 12 Hours. Shut -in pressures were the well, but enough water vapor was present in the • 1,020 psi on both. A high - pressure trap was installed, gas as it flowed through the surface connections to and flow tests were made, the produced gas being cause the regulators to freeze and stick. burned at the end of a flare line. Steam jackets installed on February 20th were The well flowed steadily through a 1 664 -inch bean for successful in preventing hydrates and ice from forming 3 weeks; during this time about a quart of muddy water in the regulators by raising the gas temperature from was recovered from the trap. Tubing and casing 17° to about 100° F. flowing pressures rose gradually to 1,000 and 1,010 psi, On March 19th, the tubing was blown down through f respectively, while the well produced at the approximate a % -inch bean for 30 minutes, and about a gallon of rate of 507,000 cubic feet per day. condensate and mud was recovered from the separator. On July 29, 1949, the well was put on production and The well flowed an estimated rate of 6 million cu ft per • supplied gas for Barrow camp. In the following two day, and tubing pressure dropped from 1,020 to 640 psi. months, production increased gradually from 46,000 When it was again returned to normal production, the to 216,000 cubic feet per day with a tubing pressure pressure rose to 1,020 psi in 10 minutes. of 1,010 psi and casing pressure increasing from 420 A few days later, a small leak was located in the to 700 psi. During four weeks ending on October 23, 11% -inch casing at the wellhead, and a larger one was 1949, 7,276,000 cubic feet of . gas was produced. On suspected in the 7 -inch casing at some depth in the November 4, 1949, production ceased because the hole; so plans were made to kill the well with mud in tubing was plugged by hydrates that were apparently order to locate the leak. At 2:45 p.m. on April 5th, formed because the temperature in the hole was lowered however, the well caught fire when a Caterpillar tractor by the increased production. clearing snow near the gasline apparently hit the line Caustic soda was put in the well, and the well was and broke it. A strong wind blew gas from the break allowed to blow itself out several times, but the plugs toward the control room and wellhouse, and when it was of frozen material were not completely removed. ignited by the reboiler of the dehydration unit., they Heated diesel oil was then circulated in the Bole, and caught fire and blew up. When the fire was under in 2 weeks the drill pipe through which the oil flowed control several hours later the wellhouse and ineterhouse was gradually lowered to 736 feet. Tubing and casing had been destroyed, and the well killed with niud. were cleared of obstructions, and gas was again fur- On April 22d, a derrick was moved (from South Barrow nislied to the camp, with casing and tubing pressures of test well 4, nearby), to South Barrow test well 2, and • • • - • • .610 EXPLORATIOIS OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, 1944 -53 the 2g -inch, tubing was pulled out. It pulled hard Drilling -mud characteristics in South Barrow test well 2 -Con. and when an impression block was lowered to 565 feet Depth Weight Viscosity Water Temper- it showed that the 7 -inch casing had collapsed. (feet) (lb Per (sec loss (cc) aturo Additives cu ft) API) 30 min) (° F) Because the, collapse was within the zone of permafrost and had presumably been caused by ice, the 11% -inch 585 8 casing was probably also damaged. Consequently the 625 80 38 well was abandoned and Left full of the heavy mud 655 81 37 which, according to the thermistor installed in the hole, 740 82 43 was already freezing. 7� 40 DRILL AND CORE BITS 860 8 41 880 84 41 A Reed 'Kor -King conventional core barrel with 950 85 38 63a -inch and 634 inch bits was used to core 1,089 feet. 90D 35 1,015 82 40 Added 3 sack Aquagel. The 21 soft - formation bits and 26 hard- formation bits 1,020 81 42 }Added 101b Stabilite-8. recovered about 90 percent of the rock cored (above 1,060 85 42 44 Added 6 sacks Aquagel, 85 lb the argillite). 1,080 79 38 ss 52 Naxco3. Eighteen drilling bits, 7;s -20 inches in diameter, were 1,104 Added 6 sacks Aquagel. � 1,110 79 37 60 53 used to drill the hole: Most of them were Reed bits 1,150 81 39 6 4 5 5 65 but some Crum Brainard and Hughes bits were also 1,265 82 46 so 1,300 84 44 60 Added 51b Stabilite -8. employed. 1,335 83 41 60 1,365 83 41 60 DRILLING MUD 1,450 84 42 55 The hole made mud while it was being drilled, and 1,6500 85 41 50 1,705 87 43 50 except for water, used to reduce the mud weight, the 1,753 Dumped 42 bbl mud and added water because of increasing mud only additives were a small amount of Aquagel to weight. increase the colloid content, with Stabilite -8 and 1,8 87 39 5 0 65 1,921 Dumped 77 bbl mud and added pyrophosphate to control viscosity. After setting the water because of increasing mud 7 -inch casing, the mud was treated with sodium bicar- 1,950 87 42 53 65 weight. 1 ,970 85 39 55 64 bonate to combat cement contamination, and new mud 2,030 84 38 55 64 Added 4sacks Aquagel. was added. Continued work with the casing caused 2,130 85 41 55 Du 53 bbl mud. more contamination, and when the well began flowing 2,185 85 40 65 51 2220 84 38 65 51 , gas, sodium bicarbonate, Aquagel, Baroid, and pyro- 2,255 86 43 45 57 2 270 05 S5 40 80 56 phosphate were used to maintain the desired weight 2,3 84 38 50 59 2 and viscosity. The addition of 90% -pound newly mixed 2 ,33245 5 86 41 50 60 85 39 57 57 2,380 S4 40 57 mud stopped the gas flow, as the gas -cut mud was 2,390 84 40 57 59 Added 5 sacks Aquagel. as 57 replaced. Two unsuccessful attempts to set cement 2,440 83 45 55 48 plugs contaminated the mud again, so it had to be 5 8 3 43 55 59 2 discarded and more new mud added. The mud 2 ,485 855 43 5 . 55 materials used in drilling and completing the hole 2,505 84 41 55 56 • totaled 83 sacks of Aquagel, 65 pounds of Stabilite -8, HOLE DEVIATION and 85 pounds of sodium bicarbonate; the following The upper part of the hole was less than a degree off shows the mud characteristics and additives during vertical, as measured by Totco. Below 1,300 feet, devia- drilling. tion increased gradually to 3 °20' at 2,400 feet, the lowest Drilling -mud characteristics in South Barrow test well 2 point at which a reading was taken. Deviation at each depth checked is plotted on the graphic-log (pl. 42). Depth Weight Viscosity Water Temper - (feet) (lb per (sec loss (cc/ ature Additives ELECTRIC LOG AND VELOCITY SURVEYS cu ft) API) 30 min) ( F) Schlumberger hand - recording equipment was used to 15 Mixed lb Stabilite 8,12 sacks Aquagel make five electric log runs which recorded spontaneous 100 7 z Added 47 sar Aquagel. potential and long and short normal resistivity curves 200 72 40 250 73 for the hole from 69 to 2,502 feet. (See pl. 42.) A 460 39 72 bbl of mud were dumped. sixth run, from 2,250 to 2,287 feet was made in order to 300 73 47 3 75 75 locate the shoe of the 7 -inch casing 3336 Added 25 lb stabilite 8. A velocity survey was made by United Geophysical 430 78 39 y y 3r 410 79 40 Co., Inc., with a single shothole 411 feet north of the 530 i0 40 well. Velocity above the argillite increased approxi- 1 4 •• III • • E10 EXPLORATION OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, 1944 -53 Drilling-mud characteristics in South Barrow test well —Con. the 2 -inch tubing was pulled out. It pulled hard and \Vhen an ImpreSSIOIl block was lowered to 565 feet Depth Weight Viscosity Water Temper - it showed that the 7 -inch casing had collapsed. (feet) (lb der API) loss s atur Additives cu Because the collapse was within the zone of permafrost. - - and had presumably been caused by ice, the 11% -inch 585 80 casing was probably also damaged. Consequently the 625 80 38 645 40 well was abandoned and left full y.f the heavy mud 6 81 37 which, according to the thermistor ini5talled in the hole, 780 82 40 was already freezing. 795 40 840 84 41 DRILL AND CORE BITS 860 84 41 880 84 41 38 A Reed ' lKor -King conventional core barrel with 0 s 82 41 6'/3 -inch and 6 5 ,23 inch bits was used to core 1 089 feet. /4 83 35 Added 3 sacks Aquagel. The 21 soft - formation bits and 26 hard- formation bits 1;0g 82 40 }Added recovered about 90 ercent of the rock cored (above 1,858 83 42 p \ IO60 85 44 Added 6 sacks Aquagel, 85 lb the argllhte). NaIICO;. 1 ,080 79 38 65 52 Eighteen drilling bits, 7% -20 inches in diameter, were 1,104 Added 6 sacks Aquagel. 7%-20 � 1,110 79 37 60 53 used to drill the hole. Most of them were Reed bits 1,150 81 39 45 55 but some Crum Brainard and Hughes bits were also 1,2665 s 46 5 1,300 84 44 60 I Added 5 lb Stabilite-8. employed. 1,335 83 41 60 1,365 8.3 41 60 DRILLING MUD 1, 450 84 42 55 The hole made mud while it was being drilled, and 1;550 85 40 50 705 87 43 5 mud except for water, used to reduce the mud weight, the 1 1, ,753 Dumped 42 bbl ,nud and added water because of increasing mud only additives were a small amount of Aquagel to weight. 1,790 ss 40 58 55 increase the colloid content, with Stabilite -8 and 1,840 87 39 50 65 1,921 Dumped 77 bbl mud and added pyrophosphate to control viscosity. After setting the water because of increasing mud weight. 7 -iIlch casing, the mud was treated with sodium blear- 1,950 87 42 53 65 , 1970 S5 39 55 64 bonate to combat cement contamination, and new mud 2,030 84 33 55 64 Added 4 sacks Aquagel. 2 115 84 39 55 46 Dumped 53 bbl mud. was added. Continued work with the casing caused 2 130 85 41 60 40 2,175 85 42 50 50 Vlore contamination, and when the well began flowing 2,185 85 40 65 51 2220 84 33 65 51 , gas, sodium bicarbonate, Aquagel, Baroid, and pyro- 2 ,255 86 43 45 57 2 270 85 40 80 56 phosphate were used to maintain the desired weight 2,305 84 33 50 59 and viscosity. The addition of 903 -pound newly mixed 2;345 86 41 57 s5t7 mud stopped the gas flow, as the gas -cut mud was 2,390 &I 40 57 59 Added 5 sacks Aquagel. 85 43 57 replaced. Two unsuccessful attempts to set cement 2,440 83 45 55 43 plugs contaminated the mud again, so it had to be 2,455 Z' 43 55 50 discarded and more new mud added. The mud 2;445 85 44 50 55 - materials used in drilling and completing the hole 2 84 41 55 56 totaled 83 sacks of Aquagel, 65 pounds of Stabilite -8, ROLE DEVIATION and 85 pounds of sodium bicarbonate • the following shows the mud characteristics and additives during The upper part of the hole was less than a degree off drilling*. vertical, as measured by Totco. Below 1,300 feet, devia- n tion increased gradually to 3 °20' at 2,400 feet, the lowest - Drilling'; -mud characteristics in South Barron' test well 2 point at which a reading was taken. Deviation at each depth checked is plotted on the graphic log (p1. 42). Depth Weight Viscosity Water Temper - (feet) (lb per (sec lr;s (cc/ attire Additives ELECTRIC LOG AND VELOCITY SURVEYS cu ft) API) 30 mm) (° F) Schlumberger hand - recording equipment was used to 15 Mixed 25 lb Stabilile -8, 12 sacks Aquagel. log m ake five electric lo runs which recorded spontaneous 87 Added 47 sacks Aquagel. 100 77 potential and long and short normal resistivity curves 200 72 40 for the hole from 69 to 2,502 feet. (See pl. 42.) A 250 73 260 39 72 bbl of mud were dumped. sixth run from 2 250 to 2 287 feet was made in order to 300 73 47 run, 2,250 > 330 7 41 locate the shoe of the 7 -inch casing. 366 Added 25 Ib stabihtc 3. 430 78 30 A velocity survey was made by United Geophysical 460 7.70 45 Co., Inc., with a single shothole 411 feet north of the 4S0 5 79 40 well. Velocity above the argillite increased approxi- . CORE *TS AND TEST WELLS, BARROW AREA•ASKA 611 y * . ttely,fronl 6,700 t o 8,400 feet per second with depth; DESCRIPTION OP CORES AND CUTTINGS vertical velocity within the argillite is approximately Lithologic description. 18,000 feet per second. (where no core is listed, description is based on cutting samples] SOUTH BARROW TEST WELL 3 Core Depth (feet) Remarks Location: Lat 71 °09'46" N., long 156 °34'44" W. Elevation: Ground, 30 feet; kelly bushing, 44 feet. 0 -14 Kelly bushing to ground level. Spudded: June 23, 1949. 14 -40 No samples recovered from this sec - Completed: August 26, 1949. Dry and abandoned. tion; well geologist described sedi- Total depth: 2,900 feet. ment penetrated as soft blue -gray clay. Gravel in samples from lower The third test well drilled in the Barrow area is South depths may have fallen down from Barrow test well 3, about 7 miles south by east of South this part of the hole. Well geologist described section as soft Barrow test well 2. (See fig. 50.) The well site is in a blue -gray clay with carbonaceous structurally high area with a closure, according to particles and sandy streaks. 65 -200 Clay, medium -gray, and small quantity seismograph surveys, of 200 feet on upper horizons, of gray silt and very fine sand. Top lessening to 100 feet with increasing depth. The of Topagoruk formation at 65 ft. 1 200 -220 Recovered 8 ft: Microfossils absent. seismograph work also suggested that the top of the 6 in., clay shale, light -gray, noncal- argillite was somewhat deeper than it is to the north careous. 3 in., sandstone, very fine grained, and that it was separated from the overlying beds by silty, noncalcareous, thin - bedded. sedimentary strata not present in South Barrow test Beds lie flat; partings marked by carbonized plant fragments. Sand well 2. Drilling confirmed this interpretation. Triassic grains are angular with low spheric- ity and usually clear quartz, with strata, absent in other tests in the Barrow area, are 252 some gray chert and translucent to feet thick in South Barrow test well 3, and the overlying opaque yellow or white quartz. Lower Jurassic is 902 feet thick compared to less than Mica rare and predominantly clear to light green or gray, though a few 60 feet in test wells to the north. (See pl. 41.) biotite flakes were found. ft 6 in., sandstone, light -gray, fine The Gubik formation is presumed to be present in 1 to very fine grained, slightly silty, this test to a depth of 65 feet; no samples were available noncalcareous, massive. ft 9 in. , sandstone as above but from shallower depths and samples below that depth 3 with a few partings, marked by resemble Cretaceous rocks. Below the Gubik formation carbonized plant fragments, in- t creasing with depth. Clay laminae (14 65? ft), Cretaceous rocks in the test (the Topagoruk rare. Straw- colored oil cuts in formation, 65? -1,080 ft; the Oumalik formation, 1,080— CC14 at 204 ft and 206 ft. Porosity 1,285 ft; and pebble shale, 1,285 -1,645 ft) consist almost and permeability at 204 ft in a plug cut parallel to bedding are 28.4 entirely of shale, with some thin sandstone beds near percent and 390 millidarcys, re- the top. A basal conglomerate with chert pebbles as spectively; perpendicular to the bedding, they are 27.3 percent and much as 1% inches in diameter is present at the base of 199 millidarcys. the pebble shale. The Lower Jurassic beds, (1,645— 2 ft claystone, silty, light-olive-gray, noncalcareous. 2,610 ft) are light- olive -gray siltstone and contain a 2 220 -240 Recovered 20 ft: Microfossils vary rare. large amount of argillaceous interstitial material; an 4 ft 6 in., siltstone, medium-gray, argillaceous, slightly calcareous, in- upper sandy section of this rock is separated from the terlaminated with carbonaceous lower siltstone sequence by about 400 feet of olive -gray partings in top 3 in.; shaly cleavage in botton 6 in. to medium- dark -gray pyritic clay shale. 5 ft 6 in., sandstone, light -gray, fine The lowest 60 feet of Jurassic beds are composed of to very fine grained, argillaceous, thin - bedded, noncalcareous; part- olive-gray reddish -brown or medium -dark -gray clay ings of macerated carbonized plant shale and some thin beds of light-olive-gray bentonite. remains; 3 -in. bed at 226 ft has abundant carbonaceous ma- The base of the unit is placed at 2,610 f eet, below a terial and also has numerous lami- nae of crossbedded medium -gray core which had very poor recovery; sidewall cores taken clay shale, with dips to 7 °; light- between 2,596 and 2,610 feet recovered rock similar to amber oil cuts obtained in CC14 that in the overlying beds. In the upper Triassic from 224 ft and 229 ft. Porostty and permeability of plug cut paral- strata, 2,610 -2,799 feet, limonite oolite layers are inter- lel to bedding at 229 ft are 29.1 per - bedded with limestone and very calcareous si'_tstone cent and 370 millidarcys, respec- tively; from 1 cut normal to the and sandstone. The underlying argillite, 2,799 -2,900 bedding they are 28.2 percent and feet, is similar to that in the other test wells. Some 242 millidarcys. 10 ft, siltstone, light- to medium - slight oil shows were recorded in the Mesozoic beds, greenish -gray, argillaceous, slightly micaceous, noncalcareous to slight - but none were sufficient to produce oil in drill stem tests, ly calcareous; rare carbonized and the test was abandoned. plant flakes. • s i/~t:i"tJ p·r ./Cl)'/. I' Dï-c~,:o - ~J ~¡J¡;,¡' .J- c'¿'~ I~~ r t , 1"'1""' ..,,-( /1"'") () vI l.~ ' It.. I t..L- <:L, \ t"\.'VH...,-", fj ~,,4'. ---¡-¡-- U . I ", ttl t" 1/ JI,.::¡ ,]'1 e ¿:'-/1 ,/ CT'3 rç¡;1f .., J ~- BARROW CORE RIG TEST 1 ~lr.YJ jJív I. ..;f~ ¡';., _J.~~_:.. _ _. ...L__~_.. iI {' J'? -7_ f i:/ / i . þc, fr,¿,.;..J ~,;Vr:. IU..f/-----'-l':2:........_____: . ; { 8 4- S.... t W,Jb Z ¡ 2. ~ ' 2.3 ¡/8 z, Co 4- e ,..J utJ~ j JJocation: JA!.t 71 °09' 46" N., long 156°34'44" W. Elevation: Ground, 30 feet; kelly bushing, H feet. Spudded: June 23, 1949. n þ({L Completed: August 26, 1949. Dry and abandoned. 1'" A_I Total depth: 2,900 feet. \~;'-r The third test well drilled in the Barrow area is South Barrow test well 3, about 7 miles south by eust of South \ Barrow test well 2. (See fig. 50.) The well site is in '1. , /42- ¡J Location: Lat 71°19'25" N., long 156°39'02" W. Elevation: Ground, 10.4 feet; top of surface pipe, 13 feet. Spudded: September 17, 1944. Completed: October 7, 1944. l)ry and a.bandoned. Total depth: 3·t4 feet. f}.\\~f:,¡) ß'" '" -- SOUTH BARROW TEST WELL 1 Location: Lat 71°19'12" N., long 156"42'16" W. Elevation: Ground, 5 feet; derrick floor, 18 feet. Spudded: August 15, 1948. Completed: November 11, 1948. Dry and abandoned. Total depth: 3,553 feet. South Barrow test weJlI, the first of the deeper tests near Point Barrow, was drilled for more information about the age and character of the rocks in the area. Seismic work had shown the region to be unusually high structurally. The test well, located 1,500 feet inland from the shore of the Arctic Oeean and less than a mile southwest of Barrow Camp (see fig. 50), was on a site which had the most favorabJe foundation conditions in the vicinity of the anomaly. -. ~ --~- SOUTH BARROW TEST WELL 2 Location:Lat 71°15'49" N., long 156°38'03" W. Elevation: Ground, 23.5 feet; kelly bushing, 34.5 feet. Spudded: December 18, 1948. Completed: April 15, 1949. Gas well; junked and abandoned. Total depth: 2,505 feet. fco -cGl. ( SOUTH BARROW TEST WELL 3 ....._.~ I SOUTH BARROW TEST WE!!..~ I,ocation: Lat 71 °15'51" N., long 156:37'50" W. Elevation: Ground, 24 feet; kelly bushJIlg, 43 feet. Spudded: March 9, 1950.. 1 80~ 000 Completed: May 9, 1950. Shut m gas well. Produces , ;), cubic feet per day. Total depth: 2,538. South Barrow twt well 4 is 447 feet N. 28° E. of South Barrow test well 2 and was drilled to tap the /~;t-/7 7 ~ I i R IÝ w - ! .:5ô. 13.~{" ý () LV '~j f /tJ¡'" / / H:.¡ ¡ ------r------ j b112 ~ é (.,I,.J~ ;' . z.8. ),3\ A./ .- ,.J L.,,)t:.. \ lS"'e..,. ~ I I í 18 ? ~i ~" ¡ '" , ......... '- ~:) .'f;X I\) ~. /3úrròw ·jr,,-} ;de!/I J:A. 2- ~-_·_;'lø 4-; -?¡;µ ~.",.f' · 14 ) 22... j /B I . : If ß ~ (1Le>....... IJ, u4 ' ~..._~ -- ¡ L50 134 F" r c) ¿t.f ÎPfll¡t1, 1/ jj. 3 r r~2/ f~ t,.J. UµC 105"" I (.o~ oJ. L,ltJ¿ i J I f , I , 24--1.L1 I i /8\ I ¡ I I I i ; \ \ \ i II J I r-- . . ~. ..., ··---~T-¡¡ C" 1). .- . I) þI I ¡ I I ¡ Jz, t()cu' r~:,'/ ) ~f¡ I¿,/h 1/ \ ! ¡ ! ,\r¡~z,lr~\JJ. UI)~ i I4-IUl/Bj , ! 92-4-' tWl-\ N. Viole' l I I I I ~ I ¡ I I! I Attachment II (b) Form x952) • (April 1 • UNITED STATES 952) * Sec. DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY T. 22 N CONSERVATION DIVISION R. 18 W._ INDIVIDUAL WELL RECORD Umia,t Mer. $M: Date Junes I. 196 Ref. No. N. P. R. #4 Land office -- State ________ I ._ ____ Serial No. - - - - - - -- fitmmmtv - - - -- — Lessee -- Field ----------------- - - - - -- -- Operator _ _U_L_ Nam___ _— _ - -__ District ________ Region — _�- (Discovery Well) Well No. South Barrow Test Well #2 * Subdivision Latitude 71 15' 49" North *Location _(Approx. 3 miles SE of Barrow camp)Long_itude 136° 38' 03" West Drilling approved ____ —__ -- _, 19 Well elevation feet Drilling commenced _ December_ 18_ , 19.48 Total depth 2505 _ feet Drilling ceased April 15 , 19 4 Initial production I1.00 _MCF2IL-ga.a_ * * Completed for production Apr. 119 . 1 , 9__ Gravity A. P. I. _ __________— ___— _- ______________ TP 670 psi CHP 820 psi on Abando _LpriL17 , 19 _50_ Initial R. P. _43.016e. _choke SIP___1_02Q_psi_. Geologic Formations Productive Horizons Surface Lowest tested Name .Depths of Contents Perforations Gas kr4 .e�o_zo .c_ Iifiddle__Jurassic --2- 282 -r & -- (Gubik) (Argillite) (Sandstone WELL STATUS -- - - - - -- 2423_-__25€ YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEPT. OCT. Nov. DEC. .__48 1949 Drg. Drg. Drg. Drg_. PGW PGW PGW PGW 1 t -- -- 1?CW__ __ I'-CW -- -- FQW-_ 1950 PGW PGW PGW P&A (Well caugh . fire on, talla one._ were destrr (7" c sing was fo d to be collapsed. REMARKS * Unsurveyed ** First -- gas_ - to-- Barrow_camp - dul- y-- 2 -9 ? - - --949. - 69' - - 47 sx - 47 1b, - - 11.9/1 - 964 - - 130 - - sx J.b. - 7n - 2260' - 250 ' - perforated. aurces---- II:- r-- Ge ©1 ©g #oat Survey Prc3€€ess #ssa -Pcr- -345-K. op - 02-4 U. G. GOVERNMENT PRINTING OFFICE SB -dH0 4 SCaNNE MAY 2 1. Ka Form (April • UNITED STATES (epril is54> 4Fec. —� DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY T. -- CONSERVATION DIVISION INDIVIDUAL WELL RECORD Mer. Date June 5 Ref. No. N. P. 1t. Land office •• State Serial No. - - County — - - — -- - - — - -- Lessee `mP Field Barran Area Operator U• S• Navy District West Coast ] &ign ___ Well No. South Barran Test Well .#2 *Subdivision * Location __I_ prox_.__5__ ilts__ _sf._1arrmr _ -) Drilling approved , 19 Well elevation feet Drilling commenced Dec • 18 , 19_ __ Total depth _2305 feet Drilling ceased ___ —I!I,Y t___________, 19 ZX-_ Initial production Completed for production , 19 Gravity A. P. I. Abandonment approved , 19_ Initial R. P. Geologic Formations Productive Horizons Surface Lowest tested Name .Depths Contents WELL STATUS --- YEAR JAN. FEB. MAR. APR. MAY JUNE JULY AIIa. SEPT. OCT. Nov. DEC. 1948 Drs. 1949 . Drg. Drg. Drg. PCM REmARKs *Unsurveyed Geological Surve r Professional Paper U. 5. GOVERNMENT PRINTING OFFICE 16 - 38057 SCANNED A1AY CD 2120j,3 1 ~~#/ r ., "J ~./ " t£:; t; 6 ~¡ B \A~ >1,\ ..J/'..\....\ .' c. , ,J ,,-,'i'" i::;ì.,:' 9?~99E; .~ .....';.. """ ~~':. ðfl . J ~ 2" 2- Ël;JTtL cal~b~!1~ ú~,? . ~..,. 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CO ~(;;}~H)i d£tl ~7fc:~1~Ú:l~~:aJ~, ~Jci~:,ti?J{6v 'r;.)J,,&21 '~~ ',_. (?dJ"\!.:f(' ~~~~gllt~ly' ,3 :)fr1r.;1(} 1''1 Sou.t:l'1. 011 TH st iqel1 IT-o r- ~:I . COT",: Ho" ......"=---="'--~~ Denth -_....~ 3'ì 1990-20)\; ~"'."' wt:'· 2010-2030 39 2030~2050 . ReqS'~El': pe .꣣.:~pt.:J, 91:} If,;' lO/f 9B Si1 t shale, 6Em~ 88 abo7e "b~(;orrÓ:glesß silty ~ n D(tNçtom 3j ~ T?'ert~it~fìl ~iöiiltirlg at 199.{h~ :;,~j th 111"" eipient <;oint,1,nt~ UJl"ougrcuto 10HOil sané~f veJ:'~7 :fir.e~. lig'J."lt f:;:;:a:y} oiJ. fte.ined~ ;"~;"'!~'-,':-'i-- ð-:':"r11' {. 't'"'t""" r~, r..··€1ca·r '0"'<: .,~C:.·i"iO" S..L.l.ðl.:v..'~<y a.T~:::J_~~~a,.~eou~~ ll,,,tn _a....· . e ..C__I....;, :/'_.A.l. If:., fluorescellce, t:!oI'Ofdty 16.~, mo(~e7':st.rs17 l:rd.urateð, $l.:.s.l·."(l fractl1.T'E-: 1~t1:1{ lJrG't'Jl:, :f8.irl-::r vi E~C0'U.S üi] ex-'G1'" £.0 ·~Jed. 1rli -h11 1)e trolí;;1J..J11 SC1'">J'Ðl1 t.'"! 6 C ß:il t 5Ìlale-t. 5.¿~€:rltical \vl ê;j11 e))over. c:a,1(;H,re,OiJ.!5 f2;~~~L21J :fra.glTIents Ci)TI1mO!.i~ -çìJTt te n~Jdu1.es 8JJ.::t replacød vegetal .matter· c:cated w:U::h ·vIllite Bdt 1:lmy T1ato~dEÙ 1iT€<rtiC;E~l jGiD.t-iI~.[< tr-.œrrl.lg110t1.t., -Le"\-1~:'..E1T" tc gl:aaD h.i·t~ Ð~PT)eeI' iXig S~...L i~ t:bro~C~r'š}1011 t ~ ~:rr ',.:~ fo ssi ~.-L s a. -buJ.1ð.e.'r~ to 20ij 20! ; 13¡Clay ·to ail t s}j.éJ41e i~dA3·nt¡cal ~li tJ1 m.e(li':ltl to da::ck gr:ay, mcétetÆ.tE,ly to w'ell il1l1Urftt.5d Ye:t·'il.i..~ c11.1ar ;:i1 t a.s atovE;, eOìl5id.erablø "1J;\Tr:'L~i z(~d "pla.n~ material ct~at'6cl ,,¡it)1 soft, 1i11.'17l ·\tjl1i·t(~ mEttøl~ial~ rnica sp3.rse~ t1~';C \r¡e:l1 rotl...Y).clad. sffiH,ll 'pebhle in)~:'..u:,"", Sit):lS B.t 2018' &.rÚi ';;'016ì, Tuo fragmentjal 'pelec;j.r... pod. ("1+) s}wll£ a.t 2t:lt3v to calcar.:;ous s:n.e11 mate:rjal tbro,,":tghout. Vertic!::.l inciþitm.t joiüttng D1'8va!;.ent tl:rro':tgbou.t" Beets arro,s,rsrd;ly :Flat 2~ on sand., Ehaly ì:;·ed.é'j,ng~ light. {!)'a:JT, ':);·£31;)' inoJJ::,ated, oil st":;¡,ir!.€d. very fine~ fl1),':t¿¡s"",es j'BLl.(;\" calcl i~e rhombf: in~ "poùk:ets~ slj.gl\tl~f 9J:~.f~::i,·Lla.ceo·u.s: þOl"O~1.ty. 8;:\j~e~e.,geB -l9%u Daxk: 1:rro\"lrJ. ~,"5j.xl;T ~Ji.SC(nl;~ oil ,,,;xtra.:;:ted 1d th 1Jf,tro'ev]]} soJ.ven·:; 5 ~c lay to ail1;i s]lale.l Ie ßS pyr i t5.. c f3Jne21 t. t,t.ar'¡, in :J:~evio'].;;; core,;. ather'll:lse icleTIU.c[Ù~ri(';-l &.bo·¡·iÇ;" Mi c:¡~ 0 f 0 s eU s a tm.Tì.M,%), t" 2'ó ~L:; I,' S:iJ. .~; 8ha.lø~ 111ic:g,oeoll£~fnc-,n--""ca~lcaY'€:ou.s;¡; tj,J.(.j,:tJ.l'·~-<o', a.te6~~ dark: gr8J,~V1; 1!\3r.iÔ.cu.1aT' !2jil t; tJlt'ð3/~~~ co.mrrH)J~: tfu-:'Ù1)ghoü.t~:; CC<ü 81 de:r2:.ble z""6placefL -pl~3.:t!.t ~na.1;er :l~;.l~· rareJ.;;' caJ:DDnac.90'1,.lS~ more OftSl'l re"pJ.\':;~c:(:;d. bJT ~çy:ri tø COB. ted v~i. t.b ê... w:bi te llm;r lTJ8..t€:rtal~. TJ;.Y"':; .llJ(-; ð,15() occur s iJl no(iu.l>3ß a:Pþs"y; erJ~tJ..;r rerjla,ciTlig~ l~r::.'.~·' mej.r}.s~ t~aJ,.csx 90'ûß s11611 fJ:CtglTient Ë! t}T~O·l.lg:¡lCUt ~fJi, tll .one t.Jell 1.::,reserVfað~ pe1.e:ú;rpod e.:t ~:04t6~ Yn(:ip:?~e':nt vert5.cal .,5oin.t;i.ng tI1rOl'~110lit;eo ?>! ~~~v"~::~i~;;i, v:~rg~~:¡~iu;;:;:;~e;:~:~ rare",:çci.'}" ~~;~_ òer:LE.·(:00U.S :m;:1 t(3J:':i. a·l Jrl()Ó.(;7:J¡f:..tel;! 8Irg'.ll lTIod,= era :,:..rlê1.1J..r;3. Th~J:·lr 'bro\!m 01 i :r ~,:~C(T'FCX" e·ð.. vii t~h -petJ."cI.etlII} sül"7te.nt~ j?·~>I~Of:,;i t;iT 13t- t¡ arit"t J:.%~ (if ~,/:t';;}l Dtl'c shale: :3 d.èg.i.-:¡e6~:,: ~r::.eßtiorla..blr;:~f' Sil t 8)}8.1e si]!1:11~~y /::') 17~ aJ)07lG:'I a;bt:IJ. (.a:a ~G r' }';i (~1~ .:,';1" C S 8i.l? ~~8·=· t..ö. 36"x'¡:rov,ï Test ~·~Jell Q9E.]ZSh DÜiJth ""---~, Lìf'1 ~,} 2050=2070 41 2070-2(87 42 2087-2106 4.-3 8106-2116 -.. .Nc~, 2~ B Efif;o2IìF-X 17Jfl0U ( ,:,', 1 ,) 14i.6/; 10' . ~ -5 -~ Silt sbalet lr.~icaceG1.¡s~: r~.re car'b02l;:,:..ceO\lS inL=tterial$ n0!1~\~alcaremls~ soft to moderatel;r i:ad::;xateð.~ de.rk to vr:3ry Ö.arlr grêJJY~' VE:rJ,·ic:l.LlrlYo. silt st:ri3~Jr8 common th-:'oc).gbùùt~ con.siderable n,yri ti zed -rJla.:'Jt a.nd shaH rema.ins, fraf}ì1ent.a.l Hl~f;ll. remains U'D:"O"J.g}-¡01.lt. heå.s e.:ry'i)8.}:,ently fLat l~rì!lf:. .j;: Sa71dston'~ li:ght gra:r: yery fìne~ micaceous, s(';mB~ \-,¡hð..-b sraly .stratifice..tio1'l rare bla~Jr c(3.r-¡)on.a(~eøUt;; m2.te1~iaL slit~htly ce'olcarem.1s, sli€;ht :fluo;¡'er'cém.-ce, moderately argillaceous! porosity ZO~< De~k brG~n oU extra.cted 1;11 th solvent. 3'6'[ Silt shale same as 6:1 abcve., Silt sYBlef slightly calcareo~$~ well inêro"ateQf light, t? medium gra::l, other-v¡i se 8,$ ~Do7e" Silt shale $i?,illÐ as 6' anð_ 6~61i abO'T8o crofo~:sils 1·, ): 61 pre sent. lOfC:]:j:pS of si1t shale. ca1.:Lght in O(,1:'e b<,irre1t bað.ly "broken (.tn. Probably' same as sil t sha.lø abov€ø l'~i-crofossils -oT:3sentQ SiJ. t sha.le~ caroOnaCif')Ol1S Jnaterial OCCUl'g :r"i,rel:y-~ non-calc;p..reo"'.s~ soft to moð.exatel;y- inélu:ra:tüd.~ dark to very dark f!Tay,. less vendcula.l' s:i.1·~ f:'tre,~\ks: an.d ()y:¡.~i·;;ize¿ material tr.<an i11 r..reviol1s 3 core¡:;~ but stìll abundant. some incipient vertical joint~ ing~ beds a}J'Oa....rently :flat lying. !ii,,~rofDs13ils· '¡)!'esent. 2j[5!íSilt sJIalef tJoarly inðxU'a.teð.~ dark t.. -ve:.r;ÿ dark gra:¿l ~ ve:nfi cu.lar eil t tl'.J'eads~ 1Jyr'i ti ze'i ·1.118..11 t rema.j.!u~. no a:¡)-v8-:ten t chan.ge fI'om Tœ(:;r;':.(íUS cores. G'ILime>é,tone? ligh"G gray \'.1Î th a 1tlea.Ï{ yeD.hw ca.stf w·ell inél.mated wi th shaly fracture and~;p'UÐt¡;ran.ce, mi:p.Ol' a!nountJf silt. car't)Onß,ceouB m::-d;œ':ial and mice. left after dissolution 'n WL ~}ffSilt sI1a.le'~ süf"~ to l~¡elJ.. indurateéL:f sanl;3 G..f: 2f'6~ a'biYVej ø ,. /1;::(1=> ,,'i ~.!-, ï . .' " .. ,.,-~ '. """ ; 1 .....~. d CJ '..v"L"-p"OhSf ",3.f~n·J pC::>;j1 V67:1j l.....ne,o_ ' ß '.'''',1 nE:' f fh.loreõees sl:'.Chtly, slightly to mç1.eI'E,iJEÚ;y calcaxeousf ~aderately axgillaceo~s" miGaceouf¡~ :m5.:ncr aJnt1..'J1t of black carbonaceous matEl'ialf lJOl'I,)st'0f 8.8:~. Q;u.estions:1Jle dip of 8 è.øgreHso 4~·f.HSilt s]1ale, same 2t;S 2ií6H and 2t aDO"ve ï¡.rlth ver~jtcal jointing tll¡':011.g110~.lt â::nd vI:l th a. 2í1 q..uart.zi tic~ micaceotu:,! caJ.cl t:1.c~ ¡,;ell rou.nd.ed. (;JJ.D.c:cet:'!.on occur:- X"i1'1g a:t 2114} n 1ttcrcfossils "Ores€n-t~ """.9-,.. ',', "'~. ,",'-. ~ -, .-, -: : '¡).:'.J...l. _~ t.; iI_' ~I." j ; ..L~) ~ I.,' .~~:.9}2 \3 ~ I~e·Gt.J:l .- ._~~",.=--......-,..---=, 1~;Ll :21J.6=2136 i~-5 212;6c=2J..5~) . ......,- R.eccver';f ,~"""~-.--,,,'-"" 17t 17' l....og-ged by A" Sa.ûU.el Kelley' .;:, . R.~g~1:i1~ j~~ 3i!'St! Silt sl1a.lE1f ·ca.rl:,on.aCeCil.lS rQ.~;.--te:t5_8~1 raTe; ~:lon. ~co 'tn:fC'Jl" slig11tl~l :~:·E¡..L(;~l·};-eOD~S5 Inj~cElGE;01.l-~:S-;- E1eCl2~:J...D to <lô...'I''lr gra~;'J SQft ·DC il'lé~u.:c'at ( onE} ~'~!16 it~;¿-:!:~:} c'" ;..-, ~, aulD..:';: sj~} t; t }--:(cca(l~: al1c1 p:Y'rt t~.J., :Z:E d '1')lf::;¡rlt :Jd,t.el' 1.&,,1~· sl',-el1 )~"'erDa,i>,ls C::CïjT Sl,}()~EièlJ.8a.l1~rr OG~:~2f3i'D11a.l linw pebble inclusions, 'ver ;jo:'i:nting and. incil,i,snt \Ter t· i oaJ~ ~in.t c ù rnrno n. , ';; 2i! Sandst')~le ŸE~:'~;l fil'le~ lig}lt t;--:"€·Y~ pt8.il1ed.!! :mocleTatel)7 cG.J_Ca1'6otlS¡ lLocter8. .~"-_ =~..l8.ceo'L1..ß:-- rnic.e,:::;;t)i.1B!, a fei:-.:- f;-:'eE::n t~).3.tlCO~~}j te(?) {;.t<E1iD_;·j~ 80ft to JÜ::nteratel~l ir:-ð:Gra, J?o?:Ds~l mE;aSUJ:~es 19<0 ~~ EL!ld stra. t1. fi ca t.:'L OJlç it< ~: Î'" :: 10 6~1 Stl t s:na.Ie~, s:d..mi18z' aGt: 8 ax V-E;, b;).t:ôl Cëtlc::~'J.:"'(30t18~ \~l,~11 :ijad.1.IratGj(l~, (P,1t: 8t:lJtle:.b':~i.? ¿jJ ~:3 "'> v BB\rerB...l d(:;&:r:E:(:::~;?) SiT t sT:~£:.lE~1: soft 'GO InOCU::i]:'?.. in,êL'L-cCa~j :no é-;'~C~),gr,~o- ent ::-hEt.ng:'e TrOTt B t6n 8~-bÙ'~rE:~ crofo8s51s present~ 13~t Si11; s}18,,16; \¡iitì:. V\f.Œ"l ~.t5ul,.a:[ siIt. -G a11rl ·pyrit~;.2ed µlant ~~eTIJ0,i~lS~ sl:l.t~}Tt~lJt (';a~LCiÐ..rËc11s~ jnC':':~'?Jratßl.:v, to t'?311 1_J?dttIÒ¡~t.e¿1.~ meeJiúra tr,) d£\.r}c ::gTß;Jt \\;i t1.1 q:U.!?stiOZl""'- able d.iTIS 5 r~~ the t"ard silt. sJ'iaJe o~f :::;e~t,sra,:L {legraet~~ fiD.e gll·t s"'\ir:ln.g'ers a:r:,;d. J.ft1rll1.aE OC'C1J:.r Eí:0 2142û!:; 4~ 81.1 t~ s~JF.<.le~ j,1c)n..--ca10a.Teotl~~~· 5~ ti d_.81>lr g;:aj! \"rl th '~OllSi{ie:re..·bl~/ Ie S;1 v8r}.f,.',i(~:ultlr 8~, 1 1: stTe;;:~JtS a.nð. a ~O.Ils:idi;;ra.~jl~~ :ir!JJr6'&~e in. 'bl.acI: Inirrct-GG earbol1ac:eollEr ma ter 5..8..1 t l1xl"Çt 11[Jl0tlt ~ Îz-'act1xres a't ;314-9[i ~L'll wyme shEi&.1' 1:-8 das :f]..e~ ':~ I::riü¡?;,:. aloD.¡s the ßhear plane ,3, t: sl~~c]tðy-sida3S o cenrl:<ill€: 2150 a.nd VGY' Lt L;[ì,~L je:, il1·f>=" }¡Eic.7co~f·os (~? "/~resent~<- ill§; OCC1J.rr irtf' 2:Jt 21[)~;í'" 5 U I" ot' Ü-ecÞlog:ical Sl.rr"l7'E,Y Faj~x·tlE~n}.c:s IJ8~·bcl~a tc:ty t.J p íl $".. J.) )f~' ),~~/; ;r! ß~. ('" . _~ ¡!~~v~.{~h¡. ¿'f i' ; ~ t,.,,~1- ¡"tfJ· A't;"<',;'",'lt''tÆ~''' e' , .'¡'" ,"....: :.~;:;.:,...."... ..n~~.~}.,.''-':¡. * ,ó·P.f ' . ;" R(ji-ber t '",J:..L:J -.C-~.~:_ ~ . S01It11 }3a,rrovJ Test N:,'Jell ITo(. 2 .9 (,1' e j;k..2 ~,~ºj;þ ~:1:6 2153·=21?2(: 47 2171-2n'8t 48 2178-2198~ ~c~ver:Y 20~ 6'911 19Ð -. ,." "··C- r ·'Yi:·'" c:;,-''"Ir:>'.. U é: :.::20 0:':11 ;J.J{)!...r..:.....,.f¿..lJ ~U.h. t.lilJ. GEOLOGIC LOG FE625 '49 :)escrh)t!.()n ~-Þ ,,.,.=__..,,.~ 5¡ 8i1 t ßbale~ mh~ace{;:.l$; nOl}~calcareou.s, soft t(j moéterately in6.u.rateli; (lark gray. \iJith very '¡¡hin. 811 t Btr:1.Ilgers and. la.mineA:;¡. "pyritizeð. plant remai.r:.s and. chi tiIlO1.:.S mater:i.al common. Severa.1 fairly "1el1 1')l"eseTved. ùelecyPod:3(?) a:1; 2157'. :Bed.s a:pL~;G:ü;,l~r .fla t lying. 14; Silt $11&.16; very ¡;l:í.ghtl;r calcarÉ)ous~ micaceous; moderately to well indurated1 medi~~ to dark gray. vermicular silt strf38ks not ~s common as above" ~onsidera"ble 1}J'!'i ti zed 1JlaTJ:¡¡ :remains~ minute bla·;;k carbonaceou.s materia.l common, Some l!5-20 degree fractures vñth verticai jointing at 2170;~ slicken= sidin.g along ·th13 jo:Lnt. It Sandstone. very fine! light gray, micaceous, o~l odor~ slightly calcareous. slightly art~llaceoua~ Porosity measures l?Ø. I':icI'ofossils present.. 5(' 4," SiJ. t s:b.a.le~ nún-calr~areous~ mic.aceou.s~ \1ell indU1'ated, mediu.rIJ to dark gray, vermi::mlar silt strea.k$ a.nc1. pyri t i zed -plant remains èOJT'JIlOnt one well pre served pelecypod. at 2176~. Dips qu.estionably 3 degTeer, a.t 2173~ < 311 Sandstone, veT'Y fine, light {;ray, oil Btained.~ micaceous> modEJra teJ.y caJ.caI'eous; moderately inð.w,,:",. ated t·Ji th shaly strl¡tii'3,c.ation an.-ª. ~:f£ªcture, slightl;.,; to lTI.oð.eratel;\r E~rgil1aceou,$; 'Pèrosi ty measures "'(.3%. gH S:i.l t shale SafflE: as h~ 411 abovß'" . 5;: LimEH:1ton6 or fl1E>rlstoD.e, buff cQlared~ íiell il1d:uX8.Ge¿: ~yritized plant remains~ s~~ll ~tl0U11t or silt~ ~rite and a few glauconi te g:rail1s remain af'¡¡er di ssolution in B'JL. Eicrofossi1s 'Prasent<. 10f 811:(j shale, cccasio;:cally san¿:¡~v shale~ non-calcarem:u" $pot·¡.,y miDJ..1.te car1)oEaceous material¡ vermicu.la:r silt streaks 81Jd TIj'xitizcd. plan.t material common~ soft to moderately indtU'6,te~ medium to da:r.k gre;:/t q:uartz -pebble inchLsions re,re, e, *11 sand streak occurring at a high B_ngle to the bedding i'Jith Blickensiding at 2188'¡ beds a~üarently flat lying. 91; Sa.ndeton6, very finE.., light g¡;-8.'1f-, oil stainødr micaceous, moderate to wBl1 indurated. slightly 013.1-- careouß, sliGht1y argilJ.aüe01¡s, T)oJ'osi ty meaSttr'8S lO..Sc&. Dip of c:ontect meas-aes 12 deg.cees. 8 fr 3" Sil t;~r to 88.ndy shale as a:bQve, veœ111ic111ar 9il t streaks rare, considera.bly· rrore minute ca.rÒona.ceous materia.l, vii th 8_ tV?O inch sa.nd st,I'eak a:i; 2198§ sa-me as 0: glì a.bove~ sh3.1e beds flat :Lying vii th slickensides on. the be ("lrl:tJ:i.g' þl,an.0fs Ð,t 21921; t: r-1icrofossils 'Pl~·esent~ =11= D;;31Y~ 11 ,="-",~,,_.,,, 4:9 2198~·2218' 50 2218-2228t 51 2228--2248 ! 52 2248·~2265S . ~X~9Y2Z;:( 20' 3~ 20~ 12e.4," . ~t:::ri12iion Silty to sandy 6hale~ micaceous: soft to well in- d~Iatedt medium tb dark gray, vermicular silt streaks a~d limy coated ~yritiz8d plant ~emains COF~mon~ non- calcareous to slightly calcareous tn the ~wrd shale? black CaL~00naCeous material rare, vertical jointing in the iiJell inò.u:rated ,Üu. shale a.t 2203'" Hicro- fossils ¡:¡resento 2' Silt sr~let slightly sandy, non-calcareous, ver~ micular silt stre~{s and vyritized material common, micaceous, meä.i um to dark gr8"Y, sof t to moéterately indura ted. l! Sandstonðr light gTalfr very fine, moderately argillaceous, grading to a medium grained higÞiy carbonaceous~ slightly argillaceous sandstone. all highly calcareous wi th calci t:i.c rhom"bs commont pyrite and siderite(?) oocur commonly associated 1:¡i th the carbonaceous fraction, the carbonaceous material occurs in roughly paxa.llel lenses~ over- all stratification shaly to masgive, slight oil odor. porosity measureB 5ø5~. Micro~ossils rxesent. 101! Silt shale! same as 2" a1Jove~ but "..i th sIna11 cherty ellipsoidal ~ebble inclusions common~ beds flat lying" 8" Sandstoner very fine to fine~ light gray~ micacseusr moderately ca.lca.¡>eou.s~ moderately to highly a.rgill= aceousf black carbonaceous material commont soft to moderately indura~ed~ with a fissile to shaly stratifications no apuarent oil odorf TIorosity mea= ,.., -:1. . .. sur.es 11.0 and L6~4~. 18~ 6!1Sandy shaler rare carbona-aeons material! non-Calcar- eous, vermicu1a1~ silt streaks and ~yritized material abundant, medium to dark gr'a:r, softly indura.ted. becoming well indurated from 2237-2239~: occasiona.l cherty 'Oebble inchlsions! beds 8.'jjl')arently flat lying. Nïcrofo6sils T)J:'esen:1;~ ':j,'8f1 Sil'¡jY to sand;v shale! moderá-;:;ely to well indurated! same as above 1mt assu.m:1.ng e. bedding "lane dip of 8 degrees from 2250~2252; ~~d with a tytical shear fracture from 8249-8250i, vertica.l jointing at 2252~, 1 n 4ft Sandstone! fine to 7er¿ fh1.€I light gray, oil odor e.p-parent, slightl;;t argiJ.laceoi1s, moderately ca.l- careousf 1:.1e11 i!ldUTH,ted, bla.ck carbonaceous ma·~erial admi7ßd in minor quantities, micaceous, bedding massive ~~th vertical jointing in first 4n. Porosity measu.res 12.5 a11(:1 lL~:i~G< 6~ IE Sil ty 'to ~andy sl1.ale~ same ae étbovQ!i \~li th occasion.al pebble lncl'u.sicns aJld n:ÿ"Ti t5. ~'~gd and pe.rtially :r>Yl~iti zeel vegetal :re1D8"i:c:,s~ beds f1.:-~t J.jring·,. '1" ~. ~ Tn" ". '- ~ -I ,,~ i 1, r< ¡.J.. ~ ,~~ -r . -" .'--)-, r '..~. ~, , ,-' _.' -,., _ .. ._.", T w" ..u~':~jtl .....JJ~-+.Çf ...... 6_1L -b¡~i'J .':..1. {.;...;. !;.:~ 1.,;.J.\.....a.À..i.::ï..n v=.~s\.:t t}ø.,.L.~ incl11ratE,a~ fevl'ver.m:1.e-lllar silt streakti. 14ic¡,o- fG8~ils nrAsent. -,l.?",,·~ ,,~g~~:Þl~ r- ~. :J ..:J 2265=2279" 54 2279·=Z237¡ 55 228'f-·.23Ü7fi 56. 8307-23Z:F ]kCC& 14' 8' 19~6j¡ 15' j) - .+ .....Q1W~1 on Sil tjT to saJ.1<.1;'f shale, vermicular silt streaks and ·oyri tizeð.. material common~ non-·calcareous~ grading £':rom medi1.liD gT&;Y1 . itiell indurG,ted to medil;1ID .. -(;0 cl£1Xk gr8,.Y and süft~ one well -preserved.. nelecypod{ 1) at 2277f, beds fla~j lying. ÌHcrofossils nresentc 6~8r, Silty sb....ale moderately indurated becoming a more sal1dð~ vIall inð.m'ated sh~:Úe in last 31:> less ver·~ micular silt strea1:s~ otherwise same as abOv0& 1) 4(1 Sandstone~ very fi:ne to fine. light gray~ slightly to moderately argillaceol1..sr very sligh-tly calcareous, moderately to well indnrated, car~naceous ~~od.y material common at 2286;~ thin black carbo~aceouß laminae :,n -parallelbancls essentially :fl.at lying at 2286~ 1 cdl odor aü-oarent 011 fresh bree..k~ Porosity varie$ frc.m-'9.1 to 18.4%. Overall bedding massive. Hicrofossils present. 1 t Sandstone, l:tght gra.y. slig...~tly to moderately aJ:'~ gillaceous, slightly èa~ca.reoua~ ffi9derately to w-ell i:ndw:, a te èi., úil stained and oil odori bedding massi1:¡s" porosi ty varies fl'om 18.4 to 1902%" gí Sil ty to sandy s:haleE -¡;rermicu.1ar sil t streaks a.l):5entt þyTi.tized -plant rem,Üns common! grading to har~ \!lell indurated extremely sandy and. almost cOllg1om- erat~. c: 6ba1e. ".r.l th tlUal'tz and black to "brovm. elli-pfimidal cherty nel¡b1.es very abundant. slightly calca.reOîJ.$f dark gray, one 1Irell -preserved -omri;ia.l1y :pyri t:tzed. g8.stropod(?) at 2288R f. and. with shell fr.agments at 22881; and 2289~ 9 Microfossils}JreE$ent< gU6" S:l1t shale. vermicular silt s'!;raaka rare, n.O¡l"" cal- careous~ ~la¢k carbonaceous material abundåntt some partially carbonizeêl irJOod,y ma,terial, light to medi1l>'TI g¡:ay~ well illdu"'('ated ,1i th poker chip fracture$ well d.eveloped dips of .2 degrees at 229S¡ and 2299' ~ high angle shear fractur¡",g "Ii th SOIDe slickensiding :from 2305-2307'. Microfessils present" 13R Silt shale. vermicular silt stre~~s and nyritized ma.teria.l ,~cJ!JJJJOl1~ oc(;a.s1onal thin carbon;a.ceou.s filmß presen·t$ non.-ealcareousf dark gray to blacK$ moderately indurated. a five inch medium g~ray non~ calcareous well indurated siltstone inclusion at 2316'. vertical jointing ccmmon tr~oughout. 2; Peòbly sr~"f es bro\vil'i. sh blaclr,. soft to moderately indurated, well worked elliTIsoidal black coars~ chert pebbles and white quartz pebbles common, fine grained t.an cla.y streaks thro'(lghout~ Il1ícrofossils a bu..l1dan t" = 13,., De-nth ,~~~~..';:"_..,.o._~, . ~..s.9Y.e::::'";r [/i 8322·,,23:38 p 5~ 58 2328=2338~ 3~ 59 233~2341 i 9' ,--,- 60 / 2341--23f:i6 i 101i \ ! " ", \\ ,J _ - -'" J. ':;~';:;:1 ~0~< ) " \ .. \ \ 61 2356-23751 96 . .De 6,;1'i "Ot,i ç,µ 4i 6H Pebbly stale, -ol'oi'mish black~ micaceoug~ well worked. ellipsoidal to rounded black to brovm 0herty neòbles abl11ldant" :f:'.:ne grained "GaD. clay.material and shale mak:es up the matri:z: of the rock, non-calcar eons: crwilbly to Dodprately inŒürated. 61: Sha.ly '~ong:¡_1)mey.·ate;: brovmish black, nOl1-calce.reollsr conglomera·ti. c m8. tar ìa.l :mo stly 1IJel1 rouJ1.dad a.na. elli:psoiÓ.a:' coarse blaek to br01rlZl chert 'Pebbles$ pYl'itized. m.êìte}:ial éJld Ißrtially pyritized -plant material e.?,xbona"ceous ma:terial 'Presen·~; some glauconite(?)t fine grained tan clay material, crumbly:;o noderately :'.nð.1.1!'a'teð.. Hicrofossil s -,?resc:o.", ;2; II Sl-JÒ..ly cOllg}.(ímera 1:;e same as a"oove.. 2~lO':Sand.stonH~ very fine~ Hght gray "but stained. ·br01;n1. by oil. ßtrong oil odor, non-calcareous, very sligh'';- ly a:tgil:'.aeeou.s,. fluoresces -pale yelloì."'t fev¡:;!lert in·çl·C',si0J1S, :micaceoJ.1s, few erratic carbonaceo~J.g streaJts: glauconi te g.rétjn~ T)r.esellt~ pOl'ùs1.ty meagures~ 20.8%~ bedrUng massive i~'ith vertical jointing thrOu.grF ou.t. lliTicrofossils absent. ]'i11(l sand, ~hale, and fiil t~ all cros$bedded a.n.d inteJ:'-la.miIŒ;tE¡d~ light to daTk gr:ay, moderately to ir¡ell indUZ'ated" 1jyri te common. non to slightl:;; cal- careous. micaceous. gr€!e:n gl,9:a.coni te(?) grain 3 abu.nd.ant a~; 2336': oil odeI' ljre-valent throughout. Ratio is a'o:!=œoximately 60% rine sand 'GO 401 sUt; and shale. Hicrofos8i1s abs,;'fn.t. 8" Silt, sh£w.e and Vel"';'T f:tne sandt CI'ossbeddad and íntier-la.rnir.a.ted.~ 1i¡~ht o:ay, moderatel;y indurateð.r. sligJ,tly ce.lca.:r-;;)oUS" m:l caCeous~ re.tio i s ap1J1'o.xi~ mateJ.y 70% zil t; to :30% sand and shale. 8" .siltsto1'l€'~ Üi{Shiily calcareous, light gra.y 1t¡Hh a slight b1.uir:h ea.stt "pyritið~ quartzi ti,~~few glau~~ Conite grai~s, extremely b~~d a.nd well indurated~ 10" Very fine sand, Bíl1j. and sba,le same as 8" above. 1filO" Sanclstone. very fine, v(Jr-:J·~:nty. non-calcar.:wus:; light {çay, mod.erately inö.urated, few glat1co:a:5.te gra.ins" 1'.0 élnpa:rent oil cd.or. 3~ Siltstone amI silt shale same as O~8!r above. 3w San.¿t;y- ail tsto:ae, non to very slightly calcareousf light gray '\l¡i th clarl':. gray shaJ.y streall:s COIr.iTi10I:i." very slight oil ,'dor. Shear i'ract1J.reH at 234<:, f' . Microfossils ~Tesanto Sil ty sanò_ston.ef vary f5_I18o Hght gray~ sliGhtJ.jï calca,:reü1is! moderately to iArell inð.urated~ streakec1. \\1Ì th shale. M:1.erofcBsHs abs,:mt" =14- 11 ~~~? ~:ro. n ,- ~~J?' . . ~~~cve£E n~scrinti9~ 62 2375-2391 ~ 14t 11' 6u Silt, very fine sand and streaks of sÌ'..e.le1 light gray 1"JÌ th -tJro\tmish cast at times~ non-calcareousr moderately indurated, inclusions of 'WOö~ material common, one well ~eserved ammonite at 2379', in- cipient vertical jointing fairly common.. A con- centric shelled inclusion at 238p:, resinous grains in the inclusion fluoresce bright yellöwo 411 In"tira.fo:cmational conglomerate vlÌ th oolitic sandstone conglomeratic c9nstituents, quartz grains, "pyrite and ~articles of bentonitic claystone and woody material com.mon. 2' 2ff Sil t, ve;~y fine sand anð. streaks of shale same as Ilf6Ø above \dth a well þreserved macrofossil occur- ring in a sandstone intraformational constituent at 239P, Very slight oil odor on fre13h break throughout core. ~1icrofossils very rareo l'!otation~, The folloi>ling are -porosities run over the interval from 23~-2391~. The fairly high ¡Jorosi ties are a1'roarently typic:a.l of material 1'1..aving high argilla.ceous cöntent~ the estimated i)ermeabili ty over thi s area is fairly low" 23419 2346' 2356' 2375i 2378t 2383t 22~5 % 17~O 7,,8 :Porosi ty 2 20,0 % 9.2 De"Oth Poro 51 t;r 1 21~4 21,,9 24,,0 Logged by A. Samuel Keller U" S. Geological Survey Fairbanks Laboratory ~.~~~. For~ Robert ~ið Chapman Geolog'1 st =15= \{)J /./ i- . >,:f\~i"' E'2.r:,:ü1"J Test VJ'ell £.:0 {. 2: 9}~:<'i~ILQ " ~,.., t¡v G4 65 pe22:~1 2391.,=2400 r t-/' !J R~,E~€2:-X 91 "~/'-- 240C-=24.'30 ( 18 J 6 E 8420~244{) >/"",C ;>¡t Logged DY A" Samuel Kel1e~ . ï":" ~ . G-TEO Ij(}Gl C .f::JJ fJCJ:i.{ vTIiY ~ GJTIOLü(}lC LOG pesc:ri1}t~(,nl Light f~ay silt tv very fine sandston0t laced 1'lith ð.ietontinllo'U.8 len.t:lcular d.arl{ gray' s}j.al~t strealtf:! i21 var¿¡i!li.s a.nl0l1.n.tß~- entire iT1.te,2~1TaJ.. $imilæ to th8;(¡ a!Jöve ~ nOrl=ú8,lcal'eouß, vJell in-, ('1'l-a"~e{~' h': 17~1 1- ö":"""'':; 11 ~~... '~O":" c:' 'ñ"(r~"'.!j ,1~4 .~o':: 't¡,'!""\orl~l .", ~ V :., .¡..!.J.},:S.t.~-:/ ~4 r.;.J.._.....w,v~. u.."')o;1 J-'c.?..1...... t.~_ /-101..." .",,:V 1 .~..~ !Il2"te:r-i£.1 ðOl1l.!...,on~ . t1¡JO "'ge1ec;y-oods e"t 23993 ~ Oil odó!' slight on fresh hrealr tl1roughouJç. HicI'o= fossilf; 1,re:f)r T£:.}"'0n 47 Light fray silt to very fine sandstohe streaked Hi t11 sbE.le as a;bov0~ ..¡i th all Qoli tic il:.tTafo!'TI1..a.~ tional silicified pebble~ occ~~ring at 2{~3ït uhich vhen. brç,ken open sl.:r¡;¡rted oil from a "Oar tially 1')yri ti zed. tube 1 the oil fluorescing bI' igÌ1'G jrellcn'¡ð 6n Ligl1t fray, ~verJr j?i110, nO~~1<YtO"·calcB..,;-:eol1s sandB·éûTI.E;~ free of- sbaly strH:aJ:sþ 1 ,~n ¡tight Cra..v silt to ver-:;- fine sandstonef laced t<JÍ'th di sðonthmous J.EH1-i¡icular dark gray sb.al;¡T streaks1 wi th W increase :.n. the ::;hal~r material tm·¡ard ~hð bo'~tom1 considera1Úe 1Jyri'ci zed lIlOod.1 no 1i tholcgic c:b..ant1:e frQm :orevious córe," oil odor 'throl1g,hou.t. I'1ic:rófo ssil S very ra.:ree Light gra-:! eil t tô very find sa.n(hr~one ~treêJ..kecl and lensed v,i th shale as al)o·in.:;~ '.v"i "eh 821 increase in s}~ly r~terial; slight oil oœo~~ s€7eral ex- tremely bard medi -¡¡..ill gray, :noJ.1=calc~eous~ silicified st~le chi~s occur at 2440r which may ~ ~. be,re.xem:pla:ry of the "basement complex. 14i<::rofossils a.ò sen tc Ce Se Geological Survey Fai:r'bÐ~111':::ê La.bora tcn:~y fl -:7/ Þ(£)' ( /~Ý/~~~''-- Fõr~ -R'õbe;ì "Ù:-Õha;Q11lan" G-eologi st "':;..... '-"')...l)"" SCLlt!l :BarrC1:1 Test '/1e11 lIoC! 2 _r¿.e_~n ~þ B.€CO'Vq:r~- .') ~" 24A.{)--2443 2t2H or-. t..~ CJ ( S8 Ii one !5 59 2454-245'7 4n fCI 2·'.kf5?-24?O 4/' ?1 <0;, ,., j".,ti 2482=24<3:7 ;¡'~ogCIÔ:1d by A^ Sa'TIuel Keller . U., S. GTIiOLOGIC.AJ-:" ffi..tRVEY . GEOl,OGIC LOG .2..~ scriptiol1 ~r; 2:: 8il t Zol1a very :fine sands light gra."'J¡ laced 1¡lith discontinuous lenticular shaly strBeks~ all ide~ti- cal ~lth tr~t described aòove~ questionable dips of several degreest :pyrite finely di sseroin.e,ted and occurring in gra~hic veinlets whioh can be traced generally to a contð,c·t with a ben toni tic argilla- ceous, very fine sand at the bottom. brOml resinous orgÞ~ic matteT þartially ~yritized occurs at the contao·c.c 81> :Be11.toni tic she.le,. slight silicification, light green. non=caleareou.s, ?y:ritic~ bla.ck ca.rbona.ceous ma:terial a.dmi::;:ed in minor amouJ1t~ sub--rounded to angular ,,¡hi te qw-XJ:"'tz ohert and ba.sement ira-gmen·es inclusions1 ~JEItzitic peòbles, Mièrofoßsils a.bsent;" :Blt!.e black extremely rla.rd siHcified 8ha10~ sla.ty to bloclçv c10a.~¿ge. pyrite f}nely disseminated, identical 1i t:hologica.n~'" wi th basemerd; rc~k: of' South Barrow Test Well No~ 16 :Basemen f; complex! saIDe as 8."bove, 1 inea t ions. i:n rock suggest a flat dip differing from the high at~le dips t1hiúh occu.r:rød ~11 South ~Etl"rü'Vl l'J C l1i P s j ~:1en "tJ~" ûftl \;it t h a:'oo ve ~ u~ Sf', G-6G].ûg:lcal St.1X'V6-;/ Fa.irba.nl{'.s 1~a'bo:;:tatQ.11r .. /1 /~/ ,r'V Iµ/; /~. .,. ........~~ / Þ(~.. a =~_~.._ f. >-.. ~_~'.~._. FQr ¿ Rü'her t 14r; C ~r12~··orrlô..:n Gaolo,g:i st ~·1'/=, :~~.~:...:.. ....._.;...~~ . ..Old" .. ..a~J' \-fells (1944-S3) . Well Name '. Avak -, lOO-Oé}"?- South Barrow-l /()O -083 South Barrow-2 /()o-öB'I Sôuth . Barrow-3 laD ;o~ i South Barrow-4 loorO~' F:i:sh Creek-lIDO -)ð"Ò GJ!'andstand-l IDt> -ts-3 Gubik-l /O(:)-;):J./ . Gubik-2 100-;):;) [) KaQlak-l 100 -9':J4f ' I Knifeblade-l J(JO - II)./ Y-nifeblade-2 J ()D - .~9 Knifeblade-2A ì:s 1\0 J.(...iPe.k,~e 6- z.1eacie-l OUrnalik-l IO()-/I<! Eas-t O'U1T1alik-l ¡OD 116- Si.mpson-l / [)()-'''ì NIJ/l"f , S/",p$ÞI?-1 '()O....DI1/' Squ~re Lake-l J O() -Iff... Tit~luk-l 'ob-/~()f Topagoruk-l JoO -Iq EaÎ:=t Topaqoruk-l I. ~!) Umiat-l IDC -Q(:/:J, ; Umiat-2 loó-QID I Umiat-3 (OO-d(' Umiat-4 100 -at;) . Umiat-S 100 -~(3 j -- J Umiat-6 100 -é).lq¡ Umiat-7 I()6 -é)/~1 I Umiat-a IOf) -é) -,,, j Umiat-9 Jó b -Q/1- ¡ Umiat-lO tDD-é)/(f Umiat-ll 100 "~/11. Wolf Creek-l IOD-~I~ J- Wolf Creek-2 JVo-ÚI75 ! Wolf Creek-3 '(i) -II&) -..,.---,. ~-"....-._-_..._.~ . .-.._~. ... --...-..----.- t 1 j ! ~ 1 "Intermediate" Wells at Barrow. (l9SS-l974) I , I » . - South Barrow-S 16Ö-b;;)t5 South Barrow-6 iOO-ö::J'1 South Barrow-7 16b-o'3D South Barrow-a '06!-631 South Barrow-9 IDD-éß;;J. South Barrow-lO 1d:>-033 South Barro""-ll If$> -63J.( South Barrow-12 lðD-ò~ -"!' . ÎI .~_"_._"·__···__m.' .__...._ .. .-.-'...---'..--.'-- . J{6 EXPLANATION . OIL WELL -¢- GAS WELL . OIL AND GAS WELL + OIL SHOW-ABANDONED ~ GAS SHOW-ABANOONED .. SUSPENDED GAS WELL . + OIL AND GAS SHOW ABANDONED -<?- DRY AND ABANDONED ,. SUSPENDED OIL WELL . ~ I -"-- .----"-..----.----. -,,--- ----1 I I I r eARROWARE~"~ . . . ""co. TULAGEAK \ S.BARRO ;'oQ.¡~~o SE I I WALAKPA~ 1Kb BAY~ / . SIM~ON I ~ALAKPA 2 ..... tt · c . . , · . , +. _ IlUYA ..', .,' . E SIMPSON 2 ULL CL~FF K' ' - .A~-.r<ð' t· E. SItt!PSQtil.l..~. J. W. DALTON I ~.. '''0'' .:~ y.. .'. '0~' SIMPSON I. ,.". ~.: W. T. FO~AN I "..PEARD t -----'"I 'j , / ,(-v:rJ ::A:. DREW·:,Æ . . (. . ,'- ,.. '¡ .. /, ~¡: W~.. P¢INT \' ldCAPEHALKETTI _~_. -+----+.' -r..: ........ ·;.U GR._. U.P<.¡·'I : . r.J.· ~J~6R..,UKIV. ~~ -~~MrPr. ~~N liiliK t£;Es~l.~u~~. . :'J,.'~~··;;I~~U ¡ ¡ ,_ ; .r' Y' I . .-1f-:".- , "-. .-.-.. .Jf\ 'M·N' .... ~ -:. .. POINT I ' i~--r----,...:_-_. .':\ S. MEADE I. . ., . 5~IKPUK..l."" r=""'..' _ ...... 1 ¡,,:-4't~.: ..L ~ 11.. J..1r.:::., !. :. ,'_ . ~ ,,:0. i':' ...4- 4- ""0--.N:KAlIKPIK1' . /.:-4.~~ISON : . .:: =" ~_.." ,,;;' .~. t;. ' "~INìG~::~¥J':';£~Iiíf.i X . . / . ,,).... . ...;¡. . ~':!I'.§, ..... ~ >!CREEK1.) , f- ,L ....:.,-:. t~~.~·,4-,~-:.:...,.-~ "i-t--. . - . ';. . . . ..;š .,.~ ~ ~ ....,. . - j J...A~c5 I +~. . .' ~__-'-"-r-~~,!t'::7'..~Mi-AOEI' ....,~\;. ' I ·T~v.J t, ... ---;'H'--_ r~A'OLAK ,I _. _.'___ __ +_ . -y-~ ~ .",-- + . . . . ~ + -¢-!~I~OKI + -- .IJ~fkf~ ~.. ~____ . '¡ __ C;-' ,(:~ ) I t,.L._. '1..-.___-'--__ _ ----.- --- - ~ . . OUMALlK I ':;'.' . Inuustry , , " . _ _ . . . R.. -- . (~ I ' . '[' .. T~'\' " _ . .... -.-.. .? y-*.OUMALlK~· . J : ~.'.~-.-1-; ~.. + r ; iT' r··· . , .-. " r '. J, .T . '. '\I.tKO.µJKTA.K I, ' - , . , \ ¡ , I : ~.~_ 1 . ~'-.f:~_..JL~.I .L~ J f.- .' . ;:S~ .~ ""'"-.. ' .' . \ .SENTINEL ' ¡ ~'_. . . __ ~ ...'r----f-. . . ) . . " . SQ!J.AijE. . \ 41LL I 10'0 ¡. -¡ ,;.... . .;r:w:~·::; \ ~LAKE:I~BIK 1-. . -. -. ',' "'___-.. . -.1-/ -~ TITALUK~ :WOL~.SE.ABEEI'" I . I . __ __ .. . '). . \ .Q). ·0 \:y CREEK' A t ,__. L . ~ . , \, 2.3 . - ,--7 MIAT T . __ fc:--:.r/-:::r. . . Ci) . ...,,-. í" . .. r- AREA GUBIK 1--, .:-=.. r~->,... .j .." . ~ t· . --/. 2 J--".L..L'J,. . .':~ " .~ . -- "tð,WUNA I, " -<:(¥KNIFEBLADE~ i __ ¡ . r~ ¡ ~.:" -'-'þ.P.. ..-.. i . --~ . r "...._,'-'-1, 2, 2A ....r -*- " '.'.: -r .. . : . :---~.*-. ~--. ,"". ~ y ~.. . ~_ .; '; "" __. . . : . . ¡. ú-""'_ ~. ., .. ~¡', GRANDSTAND I r . . ., .. ... -. '. . . !. . -!S---=-- . I r· , ,.. I . - -- . . . I. .. <c: . ì~..~·;""'.··'.-·.-.. -- ~ -L ... I I '--J .- -r _.1_. ,:~ . I..........· . I.-.J"'-:)."",,;.,,:;;.rv- : .,;....¿,. .' : .... ~ ...-....... . ,'! '-~'"\..,. i . G~ . "~LlSBURNE I t-~ ~;. . 50 Mi. ..1 J'1~ . J. fI.\ .. ! I ! 'f.::r ¡ ,... I 7b Km. ðO¡O O~O --í·· i ø {' i '""\.' . ,I.· .. ~ ~ -------------............-..----.---..- o C 1:4 c r I C ,. It -1' + + ~ . , , " II . ,II . o ~ o 25 25 I ~~ T~~~~~~c.:_ INDEX MAP- PET-48 NPRA TEST WELLS AND SELECTED CORE TESTS. 1944 -- 53 1914 - 81 NPR ALASKA _.__, WB~~ ~~~~ ;. --.., .....' --- , 50 L..__._._ ---.---. ~--- ._- TETRA TECH REPORT NO.a200 I~ -<?- + ..- ..- ~ ~ ~ ~ ~ ~ ~ -V- .- ~ ~ -<>- ..- ~ ~ ; \- i+ + -- . . -- -V- . ø I: .; -_._~ BARROW AREA I ARCON BARROW I S. BARROW I S. BARROW 2 S. BARROW 4 S. BARROW 5 S. BARROW 6 S. BARROW 7 s. . BARROW e s. BARROW 9 S. BARROW 10 S. BARROW 1\ . S. BARROW 12 S. BARROW 13 S. BARROW 14 S. BARROW 15 S. BARROW 16 S. BARROW 17 S. BARROW 18 S. BARROW £9 S.BARROW 20 AVAK I UMIAT AREA I UMIAT I UMIAT 2 UMIAT 3 UM!AT 4 UMIAT 5 UMIAT 6 UMIAT 7 UMIAT a UMIAT 9 UMIAT to UMIAT II 'ì Q \ o o - FIG' II~F ? 00 - L-1 4 • " ■ 4S. • 0. • Lo7v:5; 3,513 W - 5; 7 1 I , r • ". • _5 -I,' - _ - 5 - - •■ .r; • _ - . • - - . - ; . - - . , . . - , • - - • ..> • =k 7n J3P`.:.'rov rl.'U£;$ Well .;3. n Co_ 9iot oT P.ep t Acimlowledgemert is made for the assistance rendered by 14x. Gen Davis in the zrocbi tion hoo -.rr and testing of the flow of gas. Earl L. Vonder/he. ' Olief Petroloym Ensimpez • • • • • SECTION V • .4 . I GEOLOGICAL REPORT LOCATION: The geographic position of South Barrel/ Tost1 No 2 is Lat. 71° 15' 15.3.4" N. and Long. 156° 37' 55.25" W. Selection of the location was based on seismograph work and is on a structure,' hij bout 5 mi3os soutb.mst of Barrow ert.rip and about 4 miles south of South Barrow Test Well No. 1. Reports of the seimaograph opera- , tions bsen subrdtted .przviously. The area is 'part of tile Coastal Plain, a region of ox.tremoly low relief containing nFuly lakes and swamps. ELEVATION The elcvai.l.on of the top of the rotary d.rivo biding is S4.5 :thrive love". All well measurements ar baced on that point. GEOLOGY; Data:Ikd core tuld salrmle. descriptions 17111 bn found in the a • Vs-al.:1y Reports of the 7911 CA.iolog,i3i.; immadiately following tivis soctf.o.1., Late Cenozoic Pleisteceno ezd co tipz i rowocented th:...s • bu- 7r.g.lz:t if; , 4 ti.z,rz re :: 071: C2. • Psat, muck ;lad ice lenses were found to a depth of approidinately 2.3 followed by utrionp.olc3, sr‘nd containinc fine dark ohorty gravel zit 'L 0.7“ from 25 to This :Doti fn. plaood in the Late Cenozoic -3 I Ved t.1.) raprege,nt the Gubi.c f.)rmation. `rap top of the Er.sly Torill.ary r. & r.c.1 o gral tn bft ...24 • ".• sandstorto s vi'f...411 f Ontain teCtMlitlrit sem f:;1.417c and 5. or ?Ant.' coal. • • -• 2:2;ao a.; -. - , 1:' -2 • • C1. ; 7 • . f7; • • " • • • • . z . • .1 • , 17: • „. : ' - 2 3 • • S,'.':th Barrow Post ite 7 To 2 Cor?...oti ^n Report was ideitt&fiod by the U.S. Geological Survey as Yoi % ( °o+ tlanoin) : :p. •of bligos;ons aro First rwocaaranre of ap aplra.g B occurred at 1730' in a ditch sample and is b£lieved to )l:ttrl: :'.e to of the Uopor CreA c":ou3. The Early Torti a y sect on in South Earral Test Wall No. 2 is prodo:aim.t ly clay abut , silty in part and containing a fe:i thin sand beds. r7;�etr Cretaccoua nterbadded '" fine gray t .�.,, i. ,,ary a � ?.3�,�t gray c..a,; �..._._�•;;ana with crossbodding marked tb9 top of the r ...-, Cretaceous. TI e ' a • were r F i l ,. 1 w beds :..s2' -. thin and were i.:".^. :IIT... underlaitn by a :aodi-ua to dark gray :Jina.la aeries. .t 1005; L �. a. "si1:1,2'i•.,,.. change lu 1i.t.iiQ.:"= y i:.^» ^, noted. '1h8 new unit ; a ?ri.. T:2£ari l a medium to T r 4' black t, r t ur C�. �u moderately to wall indurated, - ::i„1, vermicular :`, ilt and pyrito replacement, constainod cherty pebble and frosted ' quartz and grain inclusions. Dictyc t itra D was identified and Dent .l:un sp. poiecypods and sholl frng`ents v;ero found. This shale is similar litho - logically to the shale first occurring i South n arra r Zest ''ell Inc. I at 2 847' and Simpson Test V ei.1 nth. I Et 5d,60 Tilin sand beC. , 7er: found in this co Lion in each of the pros ::e ls'rnd contained chars of oil in each of the South narrow `.'oat r2oli3. Thi5 section was cored continuously f"o:a 1950 to 2446 he thin sandstone b es contained ed a .ho. of oil and the shale pe:- tion of the owes 1'.'•.c am: gas i:_);d occaoio^ ..l;i d opl;:tu ef oil. In ade - al-ears thu't; tic shale, is :» ass =blo 'cur ce hi' -'d for oil and "t+ in M. a � gas .Lu .. S A •. r area. ...'t • >- gre7 to black .:i?.los contii_`" to 25P.._i' - Cis basal 8' :: - ^s silty T Ce r �.-- i}J t� '�!. -. � � _.. ft.i : '�•i(w � i .. 1r.:.{.C. .�..�s,� 1 { �S W.�:1�'�•t•.. .1` \JA :7.:iitL t y1 1 UPPER 0 T��.a r •r -'� U.S. - -'0'. r-?trtt:: n,.r • L -.., ... i.,. 1. :s_J JJ .., -. � w �i, ..... •. i �S>: ., f J7 is t ^.. V 29 TiAR;+1 1:;49 Tod r . .. ._ . • i South Dorms Test ::oll No. 2 Completion Report CG£IE ANALYSIS RESULTS C3NTINUE D • UPPER CRETACEOUS DETERMINED BY U.S. GEOL. SURVEY R=PT ND. 6 29 PARCH 1949 Top of Permeability in ?M 11i darc rs .a a'cone Th; a aas PorositeL Normal to Bedding aar c3 ?.E1 Lo eddi 2227' 5.5 Lesa than 11.0 Less than 8.0 2229' a' -1?" 17.0, 16.4 34.5 49.5 2254' l'-6" 12.5, 11.9 • 13.0- 9.0 2286° v'a2 9.1 Loss than 11.0 Less than 8.0 2287' 18.4. 19.2 69.5 • 97.0 2288' 13.8, 18.4 • 80.0 104.0 Lower Cretaceous? Below the tshaly concise-orate at 232n' a sandy section of 116' was penetratai.. The sandstone is very fine to fine grained uith nu orcus discontinuous shale streaks, gray to licht gray color, moderately induratod,slightly oil 3tainr,•d, oil ddor, co^o gas pmts tt. A Johnston r'r.':? %:t''.? on tent of the interval [.31 » .-91' gave a ,00d 3'.ow of gas with a closed in or scare at the surface of 330 :•ouctis. (See Petr. Brzrs. Report for details). • So 'oral raorcfo. si'is from this ,ore have b., n identified by the U.S. Goo10GL;23.3. SuTve: A t ; n from 2.380° is a reold of a se ntum of a T?h ar :E;aocn of a }ji'? emn _ t s . At 2591: a small i s apont of a ca i . ^ p.'d. was i d*3nt .f i T d as pro7's;:Rbl tens Etcp1 'toe. Drs. iii asido and iii "strongly :s'> ggeci a =.•u +`:f:: Cretaceous aro" for these t oseils. This formation, would then be the first identifiable Lover Crotatteou s penetrated b the drill in the Roseruo , Litholo:fically this foray: en L? opncrs to correlate viti: the 3anchtor e unit 6158'-62;39' in Simpson T004;71011 No. 1 i.8o nt seismic work indict %3ai that this Sa "vr.'.Ltcno unit at Simpson con''. rmes at least to the flank of 'sat3 Bartow regional high. Drs. t aside and •Y: °lay compared the a aterial fnuad in 8Ir pz'o. Toot 7e11 No. 1 with to Jurxesic of :esteru Canada. Furtlor u-a .eoutologi.c evii,ouoe may lead to a botter nmderstauding of ha age of this o r , n s �. in. a tip r o No. 2. The discovery - OA a thick 1";J:3 i fed v .th 5. +3 the &C.rre :". area is an ±it'1o:t 2t deFelotu.ont`'.. :"he por ti o - ? of the nd st er'7 a or base of the last a t inuos:. core, .,:'S::'.... d of 4 "is tther o f " ? r'G n-P ~its to :L , Inton i , is i -• :... C ' %.•::•:,i:e::'.%v ..« .. i.:: "'] ...:'.e; f e "3 :, • • .. .:': ! 4 South Barr lost Well No. 2 C .pletion x {ero, CORE ANALYSIS RESULTS LO�IER CRETACEOUS? DETER3i:Z1WD BY U.S. GEOL. SURVEY, REPORT NO. 6, 29 MARCH 1949 Formability in w`inidarC s Ent PorV4v il loaca t l 10 k3 c :x Pa.r l'!e1 o Bc 4iI 2350' 20.8, 20.6 52.7 70.0 ' 2331' 20.1 78.0 • 108.0 . 2341' 22.E 20.0 8.8 13.3 23488' 17.0 Les thwa 9.0 Lots than 9.0 2356' 7.6, 9.2 -3 " 8,0 " 33 9.0 2375' 21.4 13.2 17.8 2578' . . 21.9 11.? 19.5 . 2383' 24.0 ' 62.5 91.0 2597' 16.1 10.4 Lees that 6.0 2404' 19.2 •l7.1 Less tlau 11.0 2405' 19.9 12.0 8.3 2418' 15.4 • 5.7 Less than 5.0 2::3O' 12.2 9.7 4.0 T BASAL a'.I.'t Below 203 c zrin ; rras cc :,.: aze:*1 to tho total depth of' the hole 2=7.'05 but there 7.1.s very littlo cor° recovery =Dept seas fraglonto of d'.r c ;ray since-ells t c je..7 t ti...' 3 ido Cy'Z with 'ao rer.tk �, �iC i3,t2 to C 11.;:'3., ' kouni "L: :` l. t,i r o ; . , . -7'1' C. :.` * brol :.3 : p L:1 V y'a a5..11oL'l..G' of hard. c 1> k 3 ohals 11,. .i:o 1.5 i%.;hon 10.: < ..r of the :::ii...ok `..hale vas In;u 'e into o eri .'1 t _..'ag nts iii t fr 1ot:,'Cc :;...m tb.at ¢r htu':i aorra i shv.1ec The ,5 3 iic:2 below i'.t:?--3. vns drilled ',: :t. aif icu.1ttr tad it rapidly wore vat rock bitS; Homo :: th only a fe.1 . e.1 feet r:..7no t'L: ions . Tho dark c �l: i s o i y ��• r d o c �'^' s ft S.3ta _+. ��'3�? ;;•? �.i.0 � G "a a' . 3a....' r- .'C>C.� rather than ��.2t�:?, and a G':4....L13, dissell.:Satod in p,'ril;e; also 'ry small :' inlets of quartz with f'srs pyrite, which apparontly formed iirriag silicification. .The rock is very dense aftd prr t s of it efl bo called her r or ehez -like . The s i iics ous shales give no bl o'.1: streak o;:Cea1 am occasional oi_'.4hened sided surfaces . lehi.ch else show Emle gro:,7 secoi?.r7rrr °•iiverri3„ :numerou. s zi ut!3 i.rr Fulai pits }::.'o co=on o:. Io:rie 3i';'s'1.':: cce 11.1:.. then fo:%a:.Cl in sow shorts. • Tt ,hard b3.aot. shales ' ?to d"ti3.j::1s; 3'.'.rbonac: cus end give a: LZ'.3:.0 =: etr1:::.:_ an =Ally ^Z.I.2. .1',7, Ilc.i'.do b!':. !' a %^ i" 1-11.-!, " =•s T5,. , " 1: • ;'y• - l i t : . . . . 1 ' . . : . . , . t ✓T.1.' «.:r.'.5: n. ... .J it: . .'r::;.7 . ._._. . .. 7 "t - • • S 411 South 2arfow Test 'Xell No. Cctpletion Roe: The age e! these rocks is uncertain but they are probably not ycyaccr than 1,17;:er c iddle Paine:Joie. ..ey may or may not belong to the basal complex (MeroukpUk formation) in which the argillito of Siw/son NO. 1 io placed. A feature of t . section bra= 2t43 is the electrelog shols a 45 fo.:t layer Irih unusually low resistivity and moCcrate coif potentials. Below ;' 45 layer ulso proLtlt in South 3arrow No. 1, th electro-log chows a zone with relativaly high resistivity and self potential curves. In South rat.rrewlIo. 1, fairly good cores ofihe dark gray ciliceous ehaloo Isere (: ird from this basal hol7izon srd it was poneivated abomt 103 foot, 1oreas in Seqth Baura Eo. 2 the F?noteation in thy Lacal unit was on17 15. 4zitlE to tko prci,noe of the low resistivity layer fast thiok -anh w11, .tore tn. in 70.scing the too of th siliccouz n'ech lie uneeni'ormably 'eure-lth the Darn= gas horizon* With a strong unomPormity present, it does not seam likely the same low recietivity layer belonging to the lower unit youldoccur in both malls, even thour.di only 4 miles apart. It aoceare to be thorefors. a later dopooit, thou61 not n7;oessarily a part of the overlying sodironts. Thoro io hcm a difforenee of opinion regarding the low resistivity horizon and somo rout place the too of tne siliceous 'shales at 214V-2445 Bylaw the zone vith fairly hi gt T.elf 1:stentls, abowb 50' Vivi:3%, the dnrk 5tray to black sh.sics show the orv,,v..1 lou oo7;ontial and hizli rssistivitr o a douo roolz. Ito seismic valolity is W.:4 17,CCO' r zecoao. • • • • -ZarCEP.T A74,CT. C T Contract 140.7-1330 . - Serial of Report: No. 1 Date; LYE 27 Deeerriber 191 South Barrow No 2 Depth :Leal, report.: Depth thia report.: 365 Status a well at 214.00: • 15" hole at 365' 18 Dee. Drilled 15" hole Ditmh Sales: Ice and tundra. , 19 Dee. 5 o1 a 37; -87 . • . hole to 21 ch • 5 '.-30 linalff)4 • , --- cr,s.F.Irse with gN.ave.1 20 Deo. Setting 16" casinEr, at 694. 2 1 rec. - .. - zitinC on con.cmt • 22 Dee; ":aiting on estaent. 23 Th. Dr.. 15 I1 - 'on pl T...rid cement 24 D'zo. Lri.11t 15 hole -,?? to 122t. • fine to Ce;-"I'f3c and c..&:r1r, oherty C1 sr;Y..3 . .h1i I...7 '.:012. and • . 25 no.c.. 15 1 t..* 250 ;At cr r t 1 o rvz pyriLG ayle. ral's to conion. 26 r!cc. e frrin 2.5C Z. S3:::17-.1 ant F..k.:toklri.):i.u.s-r 5 1c. of. tlue-Frf.:-.:.- L C st,(.7t.,,-.; !Act z t. 7 ci.. f shall f an2i catrL ea al. or Oro :; Titn • c•JZ' 23 fiae 1Ov1. ‘ - fre 7 7 7 - . . . . • • • • - . • • 2 Jr„b 1943 south sarrm Test. :;o, 2 flime■Ilm•■■•• Depth last Il'opt.11. 365 nepth this ?.eport: 9 of well t cL • • P;14. . • r113..cci ) r — 459' iiteh fir.; 1-2r1r: .;'n nt. tcit 2< cbr 1 49-469„. ..: • -r.`." 4' DitCh . or• %; C t ;I • . == — ; LC , L Ti A26: C 1 ' fir!, t,c Z - to : • • • ; : . - : , • " _ 1 7 1 ":: • " • • , . . • • . . — • • • 2 Jd'f:l,;ary 'L %r.I.1iF3d 679'.^%013- _' Cord ;'i30'..'365; Ditch Sair ics - 879'-%0= - :z ,,1e, sort, grey clay, Lossl:tt??rous, very slightly silty and sandy, with pyrite fragments of rery fine grey sandstone a siltstone; and coal. Core #4 - 960 Ditch Samples - Shale, soft, grey, clay, slightly carbonaceo' trace fine sand and silt. f . +"�. fi /`� � r —' ♦ '�' r Fir r V I Fackler x: � 11 .ct-Z' ttrsictent Csclo €int • • iC - Cca Strovla 19 '2z.3.: Soot: 11i1-rot7 - 413t. 2 it 255 nepth thin re7.4)rt a c 13.--3 • ••■••■■••,... T 2.1 c.c a • ...T. • oS s 1jt1cjor 'La C t. 1?1 fiw Tilt: to . " 7 % 1 r -7/ r 3.. It - 7 1 • , S r. 93Y-25:::17t t: 7 '1 to 7 ,1,61 ; : 1r, ":"ki„ ' C.7k. 17. L I - •-•' 3 „ .7. - 2. " .17 :::17.;k:.` 2 :."!: 7.: . . - • • • -. . r ,r• . . s. • • 7. Tk. • of : _ • - .•• .• : • - J.77 .•.'4 • 4 • . • - • • •..• •• • • • 7 t ::* • 'S. • 7 : C . 7 • .7 CC., ay , '• 'i• • or - . 4.:•• • :7, • Ql• • 7- r- r • • 's " •• • - - s 7 _ ' • •.‘ • 7:±717. : : • rc& 71 17 • t 9 •-•„:"'• • • ' • .•.. „ • •' • , • , f.."..7 • — 7:; a,,•:• •. • • 7.. I .„( ,(,..,7'7 7,• 7.„ • ; 7 .• I to. -- • -. 2. : 7.• 7 . 7 ., 7 ••, 7 7:7 1:11:..".:1•,7. - . _ • '; • . • .. • - - -1 ' • ' .• . , , , • , • • • • • • GEL&iC -1 • 11 "):27 rort, Ivo., 5 - 23 Jar. "i9q;.9 SD:It 2 +IC. 2 Dth ast or/ 1169 nepth thic "lel:art: 1499 / Status of ot 2400; • 1r nolo z:b.t 1499' The section ren‘)t r7:7 clurior this ref consist:et: Of soft to firm gcr 1..a.y chalc seze to aLlt, Cnc 2' 'very fine, hdrd, porosity stone stroak l3 observei at 1290 ..*N of faulti:1 (slIc::onsiJed ;la/Tacos) 'ore hot al froonently. flo re i:otocr,or ar.d o evidence of oil tilriry the it of per:et:A 1./.;n: 4 mil per ft:ot. • 17 Jartut:: .6 7.- i.227I Tz t 11 59 / 0° 50 o ^e, 1?69 7 189 3h f;r,v,. clay to silty bi-Jaj 5 raioz ut-; carbonaceous dip 3 to 4° 2 / -On Shale, gray clay a:3 a.:love iiih 22° to 65 fractures ilavicg • 1ickonith. Ziurfe.poS P17 -C" S rray clay to silty bands, oice.ceourr, sorde , fr.....2.i.:/ont a, 3 - crons .tossils Coro.%c. 17 - 1189 ?ec, 171...6o • 1 7 1 cor% cia; wit!). i7c11 ti.. 15. gr(2,7 cf • silty clay; v „Ty fow thln ntrOaks cod1; 10'; i,5' fes. . 18 - 1208' -2227 ?..ec„ 1'-'O Jc o„ 177:y, c2.3.7 stroz:;.; zfat • ;r11.711 carl oz no 71.'' LIE; ".*`; 9 -5/ 11'7.9 / -1.a Corcd 127 tc 02c c.. lq - 1 1271-1247/ 20 " clay, 1 thin st.rce;:s of ;Alt ar silty rzlay. cycz:F; zic;AnAdt.1 , 7.111 fora:::".n: 19 .11:4r.uar...v: 125'2' -1.29, hole to 'P-5/El" 1217' -12.7" ---------a "c "4 4(1. , lot Cr! clay thin str...a4s s1t 1.tri inne15 zf silty 3ha1(1, tLir sligotly rice, • . 21 - 127 IT' -6" :ihal z;:t.L C ■". itn?3 CO . ; ■ C3:1% ; •^1:1 zoft, •. • ;: , • -1C." • :1! _flat • • 22 -- 12-5 -0" ffs.c of 1:730 2" ot of ( • fine erz:.f1.7.1,2ezc.i. of or oil • • 2( Jarteary 77.cad LoiL to 8.--5/!1" 1 259 1 -12 P.6 12?6 • Con= No, 23 - 1296 13 nec. 17-011 2 Shale gray, clay,. flif.t -17,tririi; 45* fractures, ica cAr`ecilaccou :3ilt, voi.'y soft, 1.00so.„ 1:,.f1, grey, st reaks of dark 31.2 cla; ). C tifot.m4ceou.s., ShAle, gray, flat -.lying, 45° tr L< . carboriseeoc.s. • • 2 .1r Curc. 132 7:-1Tv5 t rxi 0-5/qvi hole • Ao. 24 - 1'316' -1$36 "'s.oc 19' 01:10.0. vr of : Oro. . in . 01 : 'Any .t:urT:ic, es, s Cero. 25 - 1336 11 1:1° -6" 6. ha1e, f.. co; z ber,V.sci, clip 10°, 1 fr:ur'1,7 slickensirics, e:.onsce.cuz, Cor:: No, 26 - 1355'-»i375 16 :3110..e, gry, rndrato2.v hrl, cross b-aidd, Li P.2 1334 3 1375 T• 4o, 77 - 1:375 -1395 I 12)-03, 12 ' -0" 3:1:.3.0 rra.Y hard ii1r tra7.tr.7-7:..:1 ; slf.ol:eifler, 'fora:It:1ff 2ra ant. 21'; - 1395! -11 t : „ 45* a 171:: • r - 1435: 12:7.. 20 ^. 11 • r•;1?Eri ar:t »U» 1 y 2 • L5* ii'; • 23 - 1365 7 "" 1453 Cc:nz; - 14:32 . Rso. . if:: '•"0" P.7":7: SO:et tO te un-1 45* • • • . :.'• — • "7 " • (rf.:CG10 nfOPT JC.TIO C1 Contract NCy-13360 of Report: 6 Date: '7 1949_ - ell: South Barrow Test. ll #2 Depth last report; topth this r-Tort: 2010 • Status of well at 24C0 Servioinz CO20 no. 37 - 19=70e _ SUMAS: The formations vInsi:Tatc.ft tho tlast week consioed of ; 7-az/ . to d.:;=k s6i't firm to :20dora.Ely 'Q;1 ]499u to 17.38' the ha1c ction w7.1...1 acii oT at a 2m thin ;'..;rcf 7ory 1738- tc.L) by afe. few thin s.,.rc-s of vsry ii grain so.ndstone. From 1S7C the shalo 1910; on„ moderateir hard to hard, c;ruy„ dense limestone fram •nfr.Dd ir the samples- The ..lores fro:11 1550 to 2010+ producod odors cf gas and .oil am bkf. Fas and ea from the snale as well as frwl thssilt and limestone. The Ras act o' r.;h0 r: incrcae during the dril1iT7 of thiu test az, alx.)ro:dzilstoly 17E'5 where tto was 0 0 miali-P.mps. The h& pol.nts wavc: 1840', 040 a:in-amps!, 190;* C10 and 19)7:, C.12 zIld-amps. ';:he ra,o•of penettion varied fro :I. four to f_.it..., per foot probably lepenelin; on th sllt cot; of the zhale, 2L. Jvn - 1499'-163' Samples: 5hLie„ (1:.,1"k grey, sol to fir:1, with thin strea:cs of silt; :.:cmewhat • nicacosco, carconaeoous, p7rit2.c, bontcnitic. 1643; 1.14.3 L.:153; , 1653 "*1 j r - c?if • wrbunrocou:1;, 10.::aCErJa2; ' o f loft, grey ;:lav0aocm's 21.1011.e.; . 5 - 2 - ate ce 4.5* - 0°-30' oh San:ples 1633 ,-,;";.ty e "c ee.'w vjith i. t3.y tr,i1tatc1:13 1:nuants of 26 Jan - 1667=-1T=n', 1752 3a=17.1es; 167 - gfc7, siS.ght1r -s ti stmz,11 of wiltetono zi.L1 graf.nsd sandstons; sl;;iht•amotat of p7rit...1 • am . 1r7r::t rTti "f• ' fr 8-10 . . 1 17;t.lt , :::2 4 sAnu;: pe::. in v,..ry fine finc; a.a.:ort of co'l - ' • . , • ' . . _ • : , • • • • is i! "*"7.7 - .... -, .... �[S. 'y. • _ y'i /. r ' } .'. i}t: • i t . X - • • • 411 411 • Scr ial of Report 7 • . cok Endinj : 6 ?ebri:ar7 t9' 9 13 _ -- ,,,,, :,e .• Sa�th Barrow Test - ell i'C. 2 Depth last report: 2010' Depth this report: 2116 Status oft/ell at 2400: 1'.:1;xj with 9-5J rock bit at 2055' - t The section cored Q this period streaks. of s; rrasts.•.e ,r nr n ' •o consisted -4" ( 20 3:P -202 5 f- 4 u ) of dark grey to fir� shale having *.i.nhaving '• +rc ''3.. �o.'.. o c c ' L r These sands had fair shoe's of oil F loll to CL7t� to a few inches .' TS tl aa^.s';2;3:3 4's. s;3.�; I ,tYf trt) !;lf.r..'.lL'S pGe a$itJ . 'tate of renCt- ":)tit aS W:.:2 :.".. from 5 to 20 ' v , foot. ti fit_ - _ t�'1 �(�s pc:. S.VV'J i 31 Jan. Core:i 20 -.203 0' Reamed 1950 - 1990 Core No. 8 20100-72030J re( • 22..10:, Shale, d . •...cav':r•ec? t0 0r ,hale, ar: o fi abundant t.'.J• -:i s 1::S � u7tt L1CS'il,l].kC trails ua30 '; Via: 4' f; 2i joint ing, micaceous, Ca:'I 125• ' ' 2t..4tt c . } �,. , ,,ti e:'suolt^ � proy 'very t'int's fair ± of � to fine grained, ��ros;f- i'at • -�� of of 7 C!& pas. `+.. 9 .t.1 y "lyljsi 4' Shale, dirk grey, firm ±tth t orl.Y tij ke trails and Jorge j oi t • cai" i)Cfaceoii i and micaceous, i' 17. _nt • 'c:..., v.,..L in . 1 990'. :en _t or. t y, tester z� " 9�Q �C.1, , ' ry r.'.el • Y J \lii 4 ra J JGac' r i1 J.1rw"�' T d • 2 Feb. Cor.diticnee. holo. tosti :r. ;'ilokc;r . se ; r x.. a hole. �. f u :..G:i t ,. 3 r, :C: • CondiT.i 'r, hole. ..41(1 :;t%hiuL w '),: L "C: ^'L �..^ a Z.: fluid. i � tJ: . ! .1 }.o' ::..:....on tooter. Toot su:::.:fsv:i.{'. wv 'ud 2 0' :?.i1 i lt; - `er 991' 0 y 5 C .r','.'!7 -2, r. ' i_'tturva ••s i'i h : W:ie ;al covi:'Sp tool. Co ed 2O3O -2O7 S' tit ,t':a :o t 'e 'b rrel. t e : t?. , i -, 1 »9. ,hale, dark, rim, micaceous, car `on er ct'.s 94' !lt3 r1'Ct +trcr f. • .,(��k• t'fo,. r� 19 •' . Shale sr Core ::o., 1.t -4 1998t ?i1L•, °! , firm • Coro "o, ., -5 2 O I S i N ':;-1 Po. Gore o . r 1':C2 $h;. .t • s ;To, 1 Coo . 'ii . + Y 1•y C oIc r .-, �`'' " . i.'. . • • • • Core 3.o. 40 2050i-2070T .(;iiO'1,t re 19' - 1It 5' -10" Shale ark ! ro + to b1.acic, ''1orrs tr .11s, .'t?ca. ar}y.ma.^. ' 3 0 : ;aan,: ;gone, ?1ri.e,v, very fine to dine grained, 1o:i pero ?t. J :s alig ltly calcareous, fair srcr; of oil an ras, 7nde Aely ir;•.turated. l221 -9•t Shale, dark grey to black, micaceous, carbonaceous, with 707.'1 trait; 6 Ail. -d:�? • • - 6 ?eh. :tor : 2C/8 Ttea^;eri 2027 T 20551 Coro 1 ;o. 41 X70'- 2(X37 26 ;covered 1q' -O "; core stuck in core barrel, drill a! Core no. 42 2087' - 2106 `►scovorec: 14' - 11 0 ..6" Shale, ::a erw ely hard, dark gray to black, worst. trails, :pica, carbonaceous, i .ay --1yin c, bled slight a:munt of tips, no oil shot. ;orc No. 43 2106T-2116 ieeov er eci 10'-0" 5' ;;sine, ;'arh ;ire ; to b1 ck, fir.t,. ,:micaceous, ;rcr 1 trails. U' -8" Sandstone, very fi a to fine, grey, hard, %:ith slight allow of oil. l..► St •h• r:. dart; S � Grey, silty � r part. +6 - �i�6,• ...i. „ rI ..� 7 �2��'.}i 1..1 .11ian 2esi i rmt .7eoioi ist • • ATttie Cntr*.etors Contct - :os - 13360 o 3arial 7ape•ri.. 8 --• t* 1 e Sotktil narr. T!..0.. 2 • lepth larrt rtlport 211..€,;,$ Depth this report 2:107i • ? of t•ra11 24.00 hole to 9-'153r! at. :Z24 • t"1.11"' Aftr. :clove I •-•fo tt•!3:' 1 ‘. 1 ir • ' • ..;10`,v5 i".4 r.1 1.0 in the rer fc.et trt2 ft rorf 17' ' `1 .•`. .c• Y:ay 'At • lt 7 • • i:35r • * Z. ,1 1, = -C l .',, :at" Qt •`.!* • • L. f ntr,,117, 1c Athe,„4 etit c:' i. 7-r • . -2.. • leoloj .:t1port. / J 13 T C.. t 1749 1 (Cent � February 9 rebrup ry Cored 2178 !teamnd 2113 Core 448, 2178 ace. 19 7 Shale. b=ack, fir.a, silty, carbonaceous, :3eact.'.ou$, Llorta trails, b1?d gas O S3 It �,'C'.3no, rimy, carbo na eouS non -c „ s aleareous, fir" io:x porosity. � sl ! }1 Sho:7 of oil. 11-Q" Shat e, as above. 0 Sandstone, V- silty, v^ry calcareous, h r'.'i, car bonacec :1::diu i ^oresit;; , 91..311 Shale, as abo.f3, 0 ' rQ orn) r to =b ; . 9 Core 69 21981-22181 si , 201-0" Ovk? �1.'�r1 bed, 3�3f;ii'G 5i5 <�l'* Di t;i i e ' r1 ` ial .a x'i: , o : r: rai-t' a. 1 = �� .:iGi,,.,..�� � t ti •-, to 'U. �;z', •• t , a to 3i. ' ,.:�: : t•r�. ^Li trails, � s, af.c1;r to '7t; _ ''Yl•_:L'''::1: d nicaceous, 4ai':%O'1' ;3..? . 10 Febrra +ir:r coree 221.8 ;- 2;:28' :cad • 2130. -2251 Core » 221 .8' - y2228 r:ec . 3 i .,?it9 . .. fl Sandstone, r cy, :r;'' -'•• sliittly calcareous, soft carbonaceous fmc::;cnts,.711u.71 porosity, , y -ht straw out, t 1. 21,.,311 h lo, 'ark i:rz to bl�.c'r u''� s3 : s cY� c�' 11 7ebru , r. Cored 2221 • Core ' :222. ' •. , 1 ... • ;" O�'': ? :f ' +^� :1v and .r c�� t r 'r' bla'tk J. �r , pyritizefl f ... ndstefe a1..l.•yr 7:isl, VF -F, ^ • G':::I';.)C:IIc�I:841i�' ' e ..GrJii_zi slightly. � » . ""�'A YY' :$fi ? . � :.e a'J 1.f ce;S�_' :'COliu �. 4, ..:.1. i.L n .L .ue rt% ont , ._ d a' r: oi'o ^•ivy. vcr Z ;: J .^1t r; w c1. t �= 1 1 f .. 1 1 t• i �, as aLot "a» Co is } :.53 ;1242-221i5' �• J',.. �. y(�i. :,':: i 000a3i,-...•1 it's } .n::` • ! • i.^.. 1.... . .. on .L: t'A.. i'+4 +' :ice V da t cher t ..1ns 7cI't z ,rf ; ;3.L' :1 Y'a vl•.riT�'_ +ar.1�.,=.ii'is :..J.t•. ^i.'9 : :Ct :11CG» poor cut, • 1 t porosity, A c odor on fresh fracture. very "i'; r' °3.'. Corry " l 12 12 1 . 7 ebrt ,l ( serer 2 .:1'1 y 1..2300.: • COIN P' 3, 226 j4 it.' +!) Shale, grey black s lily :Jic ce concretions, . • • , .� s y j �tz;:• ry ri�� frequent () ^tom •�'s' chart a n)riQuAn' � , f f :L'!'.7 �1 :i t F J ri Yli' bloc.; =',C:.i a •v • �iY.. �!f ri: :; . t , : . A > i caceo : :s C i '; )fir .,`.�: 'y�. .....,, ., ' ` i L ...;'' ' •"'Zr o c•f sand, rbled C ) silty tor 1"-O j _ '.'i:; . n r;' � ''(; � s..L 1L1 ti �•s � y - m' _ _ ' !" i :' cut ' ' . J. 1 .~ • • • Cerr.;r:.,1-ro Cotra.ct 33& SArial No, of Report__ 9 Datf V/11 20 - -vetraer.7 1949 ' w Soot it&rriAT 7ost 'P-211 2 'rwa !.1 lavt rizIpnrt.. ?..707 ti z tort_ tatus of •Jeil e if , 4.11 "'`". • • 4 " 0, 1 4 o171: -; At, 2 c. t1-.! :K.. f ir t.rt 7 1 ,r,7 ent7Mrst:F.1 t3 10' 1 .0 ir 4cir 7.4 Levi rt. ro' :7 tr. tl;' 1.s '.z riru 7'7•9 ) t g 11 - ?;;:-- -?'33 . ..!;• „ ; C - 4 ;L-: tt :or *57 - 1 * • 0.7. ' 1 .1.'.%"..`;) . . 44:4 "',-; 2: _9,, Jah.711.14,,, • fitaf.:4 C.„Id For "2,1 - ..)r F.; ; fl 5 . t.V 't%% • , ri;,',17i.arnstely 81;sirt ci ; 1 edr, r f)t ?"L:- n`: Li 4...-.11 r . 7 .' • "" • '; • • .7 , , . . 4 : - • • Grnrcrlir 1riPrT-1 ARCTIC CONLLACT03.3 • Contract 1167-13360 Soria). No. ' of Report: 10 Date: 1 .7eekAA - Ing 2/ February 1949 :7e11: South 33e.rrty 'feet *;e1.1 No. 2 Depth last re Depth this report: 2462 •Owrglawira.e.•••■■•••••■•••••••■■•■•■ .1* Status of well at 2400: r1.1./.1.121 hole at 2462! T. scotion urd doring thiti ioc. consisto;,i of a continuation of e . pit o d y ection cf Is sit repo:nt frwa to 3haly &n cr are:, eand.y shales. Congloon•raiic sandstone oncoutezod at 2443f and c...orttinued to 214 Top of the basement cora x. was picked from ditch at 2.450( and is a black graphitic phyllite. • 'ate of penatr ti•r.lo, varied greatly; in the :z.landstone sect5.on f.rosn. 'c;: to 27 :4 -p e r foot; 25 min:Ito., to 1)0 al.nutos no foot coz.intr in the conglomerate end phyllite and 25 minutes to 80 r foot drilling. 2.3 22 vdr.bruary - Cored 2391 • (11"17e 63, 23974)-2400: : 9' -0" 9 -Co' :',41,r.:dzi cale;.1.x to t"...y caleameux, ce.:=t;,r.r low nioderr,s v epoi%Led • rAZ; Coc 6b.„ '!ec. :-6" lel -6" :3•Efaristor.o g,-cy, with shaley, iii.c c trj pey arid lanse, c.1.1cIrecuo cerin:t, low to I fafilerate ii;tt ork i'l no .. on ,etk ca.; • •core bled g4s 60 frz/..cture 10 1 tor of core. • • 23 ivel 2420' -•214431 4)r r, 1 Is i• L,o.e :440- / 0 /*I and - eand y C% nar ao:La Ce sp2 ty ro6er2t-I-: -tt CY: 2■ C0.4 1i? c.t‘ -„. • • - , • . , • - • • • 100 -024 POOR QUALITY PAGES Document located in back of folder can't be scanned because of poor quality.
