Department of Commerce, Community, and Economic Development
Alaska Oil and Gas Conservation
Commission
HOME
EVENTS
DATA
Data List
Drilling
Production
Orders
Data Miner
Document Search
REPORTS
Reports and Charts
Pool Statistics
FORMS
LINKS
Links
Test Notification
Data Requests
Regulations
Industry Guidance Bulletins
How to Apply
ABOUT US
History
Staff
HELP
Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
100-221
STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION RECEIVED MAY 0 6 20119 WELL COMPLETION OR RECOMPLETION REPORT ANAL C 1a. Well Status: Oil ❑ Gas ❑ SPLUG ❑ Other ❑ Abandoned Q Suspended❑ 1b. Well Class: 20AAc 25.105 20AAC 25.110 Development ❑ Exploratory GINJ ❑ WINJ ❑ WAG❑ WDSPL ❑ No. of Completions: Service ❑ Stratigraphic Test 2. Operator Name: 6. Date Comp., Susp., or 14. Permit to Drill Number / Sundry: Bureau of Land Management Abend.: 2/20/2019 100-221 A 3. Address: 7. Date Spudded: 15. API Number: 222 W. 7th Ave, #13 Anchorage, AK 99513 5/20/1951 50-267-10013-00-00 4a. Location of Well (Governmental Section): r 8. Date TO Reached: 16. Well Name and Number: Surface: 415' FNL, 4,550' FWL, T1 N R3E S19 ,Umiat Meridian 8/7/1951 Is-(" Gubik Test Well #1 Top of Productive Interval: 9. Ref Elevations: KB: ig 7. Field / Pool(s): 415' FNL, 4,550' FWL, T1 N R3E S19 ,Umiat Meridian GL: 144' 1 BF: Gubik Field, Arctic Foothills Alaska Total Depth: 10. Plug Back Depth MD/TVD: 18. Property Designation: 415' FNL, 4,550' FWL, T1 N R3E S19 ,Umiat Meridian Surface N/A " 4b. Location of Well (State Base Plane Coordinates, NAD 27): + 11. Total Depth MD/TVD: 19. DNR Approval Number: Surface: x- 310,282.052681 y- 5,644,502.806655 Zone- 4 6,000' MD / 6,000' TVD N/A TPI: x- 310,282.052681 y- 5,644,502.806655 Zone- 4 12. SSSV Depth MD/TVD: 20. Thickness of Permafrost MD/TVD: Total Depth: x- 310,282.052681 y- 5,644,502.806655 Zone- 4 None Installed 787' MD/TVD (estimate only) 5. Directional or Inclination Survey: Yes LJ (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 N/A (ft MSL) N/A 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 No additional logs ran during plug and abandonment operations 23. CASING, LINER AND CEMENTING RECORD WT. PER SETTING DEPTH MD SETTING DEPTH TVD AMOUNT CASING F.I. GRADE TOP BOTTOM TOP BOTTOM HOLE SIZE CEMENTING RECORD PULLED 16" 84 J-55 12' 68' 12' 68' 20" 70sx (11.6 bbl)Cal-Seal Cmt WA 210 sx (34.8 bbl) of High Early 11-3/4" 47 J-55 12' 890' 12' 890' 15.375 cmt, WA 25 sx (4.1 bbl) tap job 10-5/8" OH 3,625' unkown 3,625' unkown (ID) 1951 - noted in well file N/A 10-5/8" OH 1,650' unkown 1,650' unkown (ID) 1951 - noted in well file N/A 10-5/8" OH 925' unkown 925' unkown (ID) 1951 - noted in well file N/A 11-3/4" 47 1J-55 870' unkown 870' unkown (ID) 1951 - noted in well file WA 11-3/4" 47 J-55 800' unkown 800' unkown (ID) 1951 - noted in well file N/A 11-3/4" 47 J-55 12' 167 12' 167 (ID) 125sx (20.0 bbl) permafrost N/A 24. Open to production or injection? Yes ❑ No O 25. TUBING RECORD SIZE DEPTH SET (MD) PACKER SET (MD(fVD) If Yes, list each interval open (MD/TVD of Top and Bottom; Perforation Size and Number; Date Perfd): N/A N/A N/A None 26. ACID, FRACTURE, CEMENT SQUEEZE, ETC. D TE Za Was hydraulic fracturing used during completion? Yes ❑ No 22 Per 20 AAC 25.283 (i)(2) attach electronic and printed information ;,w" DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED N/A N/A 27. PRODUCTION TEST Date First Production: Method of Operation (Flowing, gas lift, etc.): Exploration Well - Drill Stem Testing Attached See Attached report 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. I 24 -Hour Rate Form 10-407 Revised 5/2017 CONTINUED ON PAGE 2 s = 8 (-/ /,f/ 5�1_1�y Submit ORIGINIAL only RBDMS �' MAY 0 61019 J/rte � 8 *414 l:+ 28. CORE DATA Conventional Core(s): Yes ❑� No ❑ Sidewall Cores: Yes ❑ No ❑� If Yes, list formations and intervals cored (MD/TVD, From/ro), 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. Please see attached historic summary report. Excerp taken from: Exploration of Naval Petroleum Reserve No. 4 Part 5.3 305-0, 1958 29. GEOLOGIC MARKERS (List ail formations and markers encountered): 30. FORMATION TESTS NAME MD TVD Well tested? Yes ❑� No ❑ If yes, list intervals and formations tested, briefly summarizing test results. (TVD below KB) Permafrost - Top 12 Attach separate pages to this form, if needed, and submit detailed test Schrader Bluff: 67 67 information, including reports, per 20 AAC 25.071. Permafrost - Base 787` 787` Prince Creek 890 890 Arctic Contractors (written communication, 1953) report that Seabee 1,760 1,760 Drill stem tests at 1,681 to 1,738 ft. and 3,488 to 3,519 ft. gave volumes of Top of Productive Interval 1,438 1,438 gas in excess of 2 million cubic feet per day from sands of sufficient Chandler & Ninuluk 3,306 3,306 thickness, porosity, and areal extent to be considered commercial provided a Grandstand 3,735 3,735 pipe line and market were to be made available. Topagoruk 4,315 4,315 Formation at total depth: Topagoruk 6,000 ` Estimate Only, not verified 31. List of Attachments: Surface Photo Report, As -Plugged Well Bore Schematic, Cement Reports, Daily Operations Reports, Core Sample Summary, Historic Formation Test Reports 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. Authorized Name: Zach Sayers Contact Name: Amanda Eagle Authorized Title: Engineto Manager Contact Email: aeaalea_lhlm.cov Authorized Contact Phone: (907)271-3266 Signature: ;�G Date: 5/3/2019 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-Aftemating-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 19: Report the Division of Oil & Gas / Division of Mining Land and Water: Plan of Operations (LO/Region YY -123), Land Use Permit (LAS 12345), and/or Easement (ADL 123456) number. 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 512017 Submit ORIGINAL Only BLM Bureau of Land Management (BLM) 222 West 71' Ave. #13 Anchorage, Alaska 99513 May 3'd, 2019 Alaska Oil and Gas Conservation Commission 333 West 7th Ave., Suite 100 Anchorage, Alaska 99501 RE: Well Completion Report (Permanent Abandonment) Well: Gubik Test WeII #1 TRS: 415' FNL, 4,550' FWL, T1N R3E, Section 19, UM Dear Chairman Chmielowski, The BLM hereby submits a Well Completion or Recompletion Report to Permanently Abandon the Gubik #1 Exploration Well. All work has been completed per the approved Sundry Noticed dated 2/07/2019. Pertinent information attached to this application includes the following: 1) Form 10-407 Well Completion or Recompletion Report and Log 2) Executive Operations Summary 3) Photographic Report 4) Wellbore Schematic 5) Cement Report from OCS Field Representative 6) Detailed Daily Operations Reports 7) Historic Core Sample Summary 8) Historic Well Testing Report The following is the BLM designated contact for reporting responsibilities to the AOGCC: Amanda Eagle Petroleum Engineer (907) 538-2300 If you have any questions or require further information, please don't hesitate to contact me. Sincerely, ZacF Sayers / Contracted Engineering Manager, OCS (281)615-1408 From: Zach Sayers Date: May 3rd, 2019 6 0 • • RE: Gubik Test Well #1 Executive Summary 6 so ' 0 1, Well Background Gubik Test Well #1 was drilled by the U.S. Navy in 1951. This well was drilled to a TD of 6,000' MD with the 11-3/4" casing string having been set at 890' MD. Producible quantities of gas were found, then the well was left with five downhole cement plugs, which isolated the productive zones. A water based mud described as "thin mud" was left in the wellbore above the upper most cement plug. No wellhead was installed on this well, and the casing was left open to atmosphere. Operations Summary: OCS began the rig up on location on 2/15/2019. A snow pad was built to level the wellsite and provide a working area for the well equipment. A cellar was dug using the excavator and a frost bucket. All well equipment was spotted into place to include a cement unit, steam boiler, fresh water car, tool conex, hose conex, pit, and the LX10 rig. The existing casing stump was cut below ground level, dressed and a starting flange was welded on to allow safety control and closed loop fluid containment for the plugging operations. Blow Out Prevention Equipment (BOPS) was rigged up, then the rig was skid over the well center. A riser and flow pan were lowered through the rig floor and nippled up onto the wellhead. A BOP function test was performed prior to commencing operations. Thawing operations inside of the IA began on 2/18/2019 and continued to a depth of 167' below ground level. Operations were halted on 2/19/2019 due to Phase 3 weather conditions. On 2/20/2019 cement was pumped from 167' to surface inside the 11-3/4" IA. The workstring was pulled out of hole and laid down. The remaining wellhead and stub of 11-3/4" casing were cut off and capped with an API marker plate 6' below ground level. The 23" surface casing jacket void was filled with 4bbls of cement to surface. The surface equipment was rigged down and removed from location. The well cellar area was back filled with fresh fill and all surface debris was cleaned from location. Operations were completed on 2/21/2019. Sincerely, Zach Sayers Engineering Manager el Location of Well National Rig 50 BLM Government Section: 415'FNL,4,550'FM, TIN R3E S19,Umiat Meridian 122' Ideco Derrick Rig 11 t Plane Coordinates: X: 310,282.053 Y: 5,644,501.807 Zone 4(NAD27) Spud: May 20",1951 Latitude/Longitude: 69`25'59.822"N/151'2838.957"W (NAD 83) Completed: August 11", 1951 12'MDjOriginalGroundLevel)------------------------------------------------------------------- 6' Below Ground Level` 11-'G" Marking Plate welded on with 1/8" weep hole 23" 0H to 45' MD/TVD 20" 0 H f/ 45' M D to 73' "Thin Mud" left in wellbore -8/07/1951 Cement spotted from 800' MD /TVD * no cement quantities / volumes noted Cement spotted from 925' MD /TVD * no cement quantities / volumes noted Cement spotted from 1,650' MD /TVD * no cement quantities / volumes noted Cement spotted at 3,625' MD /TVD * no cement quantities / volumes noted Ell ilia"Irl Conductor Casina Jacket 22.9' of 23"CSG Conductor Casine 16" CSG to 68' MD/TVD *Welded Casing Shoe *Assumed 16", 84#, J-55 *(15.01" ID, 14.822" Drift, 2,980 Burst, 1,410 Collapse)* Cemented with 70 sx of Cal -Seal TOC confirmed atsurface Cement circulated bottoms up 167' MD to Ground Level (12' MD) 20.0 bbb total cement pumped (returns taken to 125 sx Class 'G' Artic Grade cmt 0.93 ft3/sk yield, 16.0 ppg CIP: 2/20/2019 */ Cement Plug - 8/07/1951 Cement spotted from 870' MD /TVD * no cement quantities /volumes noted �I Sudace Casine 11-3/4", 47#,1-55, R2, 8rd CSG to 890' MD/TVD (11.00" ID, 10.840" Drift, 3,070 Burst, 1,510 Collapse) Cemented with 210 sx of High Early cmt Top job: 25 sks Cal -Seal (w/ 1" muck pipe string) TOC confirmed at surface Gubik Test Well #1 As Plugged Schematic TD: 6,000' MD/ ND PBTD: SURFACE Gubir Feld under ConractTo: °ia"n Byi Elevation KB: 156' RKB — GL: 12' Arctic Foothills, Alaska 01 ik za Da1i API # 50-287-10013 PTD # 100-221 goon4/10/2019 Olgoonik Construction Compnay, LLC. CASING & CEMENTING REPORT Well No./API # Gublk Test Well #1 / 50-287-10013-00 Date 20 -Feb -19 County North Slope Borough State Alaska Supv. Shane McGeehan CASING RECORD - Surface casino TO 6,000' MD / 6,000' TVD Shoe Depth: 890' MD / 89V TVD PBTD: Surface Csg Wt. On Hook: N/A Type Float Collar: N/A No. Hrs to Run: N/A Csg Wt. On Slips: N/A Type of Shce: N/A Casing Crew: N/A Fluid Description: 9.8 ppg NaCl Clear Bdne Liner hanger Info (Make/Model): N/A Liner top Packer?: _Yes X No Liner hanger test pressure: N/A Centralizer Placement: N/A Casing (Or Liner) Detail Setting Depths No. of Jts. Size Wt. Grade THD Make Length Bottom Top Casing 11-3/4" 47 1-55 8RD Range 2 890.00 890.00 12.00 Type: N/A Yield(Ft3/sack): N/A Totals Density (ppg) 890.00 Csg Wt. On Hook: N/A Type Float Collar: N/A No. Hrs to Run: N/A Csg Wt. On Slips: N/A Type of Shce: N/A Casing Crew: N/A Fluid Description: 9.8 ppg NaCl Clear Bdne Liner hanger Info (Make/Model): N/A Liner top Packer?: _Yes X No Liner hanger test pressure: N/A Centralizer Placement: N/A Remarks: Lift oressures durino cement iob+/-50 osi observed as cement turned the comer Wel yield 0.93 ft3/sk, mix water 3.556 gal/sk ArticSet I Class'G' cement Preflush (Spacer) Type: NaCl Clear Brine Density (ppg) 9.8 Volume pumped (BBLs) 20 Lead Slurry Type: N/A Yield(Ft3/sack): N/A Density (ppg) N/A Volume (BBLs/sacks): N/A Mixing / Pumping Rate (bpm): N/A Tall slurry Type: Artic Set 1 Yield (Ft3/sack): 0.93 ft3 / sk w Density (ppg) 16.0 ppg Volume (BBLs/sacks): 20 bbls/ 5 Super Sx Mixing / Pumping Rate (bpm): 1 thin aPost Flush (Spacer) r Type: NIA - Balanced Plug Density (ppg) NIA Rate (bpm): N/A Volume: N/A Displacement: LL Type: N/A Density (ppg) N/A Rate (bpm): N/A Volume (actual /calculated): N/A FCP (psi): 50 psi Pump used for disp: Cement pump Plug Bumped? N/A Yes N/A No Bump press N Casing Rotated? N/A Yes N/A No Reciprocated? N/A Yes N/A No %Returns during job 100% Cement returns to surface? X Yes No Spacer returns? X Yes No Vol to Surf: 1/4 bbl cmt/20 bbl spa, Cement In Place At: 12:00 Date: 2/20/2019 Estimated TOC: Surface Method Used To Determine TOC: Cement realms taken &weighed (ai surface Remarks: Lift oressures durino cement iob+/-50 osi observed as cement turned the comer Wel yield 0.93 ft3/sk, mix water 3.556 gal/sk ArticSet I Class'G' cement Gb#1 Daily Operations Report Daily Operations Report Well Name: G-1 Operator: BLMReport 2 14 -Feb -19 Well Type: Oil& Gas Exploration Well A: Report Dale: PI# Reid, NPR -Alaska Pro #: lContradtft Contacts Weather Supervisor: Sham Phone#: McGeehan lzch Sayers Phone#: James Nunly Phone 6: (801)556-0946 281-615-1408 901-232-9952 Gen. Conditions: Calm, Sunny Phase: _ Wind Directlon: Southwest Engineering Manager OA/QC: BLM PI: Phone is Wind Gusts (mph): Terra. (low, High): Windchill Temp. I(L,w, High): Well Status TO: GL, R: Planned Days: PBTD: RKB, It: Start Dete: Fluid In Well: OH ID, in: Operation Days: Last BOP Test: n/a Last safety Mtg: last Evac Drill: Qsg String Depth fit) Weight(#/ft) Integrity hsues Outermost Conductor: Surtax: Production: 1 113/4 Pump Parameters Pump# Type I Model I Rate IBPM) I pressure( SI Mud / Brine Properties Fluid Type 1 Welght(ppg) Volume fbbls.) Cumulative Volume Ibbls): Waste Fluids 0 Fluid Type Weight(ppg) Dally Volume this.) Persorm an Board: T Company # People Company Cumulatiye Volume (bblsl: Personnel # People Company 0 # People Olgoonik 5 - _------ - - -- — - ---- -- Guidencewell 2 - - Operations Report 24 Hour Summary. 24 Hour Forecast: Set up equipment around well and warm up HSE Summary: Went over Gas around well, Moveing equipment, Overhead loads From To Hours Operational Details 2W 12:00 10:00 FlytoLacation, Gubik#1 wellslte.Locate well, Testwellforgas 0:00 Clear out work area, Level out and pack down 0:00 Move equipmentinto stagemit area, Inventory egipment 0:00 OW Om OW 0:00 000 OW 0:00 0:00 Total Remarks: 0:00 Has 10:00 Gb#1 Daily Operations Report G1,111 Daily Operations Report Daily Operations Report Well Name: G-1 operator: BLM Report 4: 3 15 -Feb -19 Well Type: I Oil&Gas Exploration Well APIIs: Report Date: Field, NPA -Alaska PTD#: Contract #: Contacts Weather Superylso0 Shane phone W. McGeehan (801)556-0946 Gen. Conditions: Calm, Sun ny southwest Engineering Zach Sayers Phone M. 281-615-1408 Phase: Manager QA/OC: James Nunly Phone M. 907-232-9952 Wind Direction: BLM PI: Phone #: Wind Gusts (mph): Temp. (low, High): -38 _ Windchill Temp. l(L., High): Well Status TD: GL, ft: Planned Days: MM: RKB, ft: Start Date: Fluid in Well: ON ID, ho Operation Days: last BOP Test: o/a last safety Mtg: Last Evac Drill: call String OD (in) Depth lft) Weight(#/ft) Integrity issues Outer Most: Corxluctor: Surface: production: 113/4 _ Pump Parameters Pump is Type I Madel I Rate(BPNI) Pressure(psi) Mud / Brine Properties Fluid Type W (p) Volume(bbis.) Cumulative Volume (bbls): Waste Fluids 0 Fluld Type Weight (pPg) Dally Volume (bbls.) NEEMEMENSff Cumulative volume (bbls): Personnel 0 Personnel on Board: ]. Company #People Company Is People Company, - #People Olgaonik 5 Guidence well 2 Operations Report 24 Hour Summary: Move in Equipment 24 Hour Forecast: Cut well off, Rig up BOPS, May. in rig HSE Summary: Use proper rigging forjobs, watch for tip hazards sticking out of snow, Use buddt system From To Hours Operational Details 7:00 8:00 1:00 Remove snowfrom cellar box 0:00 Set Accumalatoq Hose cones, Tool cones, Boller, Power stand, Genarator 0:00 Power up Buildings, Heat up 0:00 Unload equipment off tellers 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 0:00 Total Hours: I 1:00 Remarks: G1,111 Daily Operations Report Gb#1 Dally Operations Report Daily Operations Report Well Name: Well Type, Field: G-1 Operator: Oil & Gas Exploration Well API#: NPR-Alaska PTD N: BOAReport#: Report Date: Contract#: 4 16 Feb 19 Contacts Weather Supervisor: Shane Phone#: McGeehan (801)556-0946 Gen. Conditions: Sunny Engineering Manager QA/QC: Zach Sayers Phone 0: 281.615-1408 907-232-9952 Phase: Wind Direction: Southwest lames Nunly Phone BIM PI: Phone#: Wind Gusts (mph): 10 Temp. (Low, High): .32 Windchill Temp. tow, HI I: Well Status TD: GL, it: Planned Days: PBTD: RKB, it: Start Date: Fluid In Well: OR ID, In: Operation Days: Last BOP Test: n/a Last Safety Mtg: Last Evac Drill: Call String OD (in) Depth IN) We(#/it) Integrity Issues Outer Most: Conductor: surface:- Production: 113/4 Pump Parameters Pump # Type I Model Rate (BPM) Pressure (psi) Mud/ Brine Properties Fluid Type Weight( g) Volume(bbls.) - Cumulative Volume (bbls): Waste Fluids 0 Fluid Type Weight(ppgl Dally Volume lbbls.) Cumulative Volume (bbls): Personnel 0 Personnel on Board: 7 Company #People Company #People Company #People O1g0pnik 5 Guidence well 2 Operations Report 24 Hour Summary: Unload equipment and heat up 24 Hour Forecast: Rig up Rig, Build brine and heat up HSE Summary: Proper PPE around well site and while mixing, Use taction devices on slick surfaces From To Hours Operational Details 7D0 8D0 1:00 Assemble valves on mud cross 0:00 Cut off well cassing, weld on starting head 0:00 Nipple up BOPS 0:00 Set Return tank 0:00 Back Rig over well 0:00 0:00 0:00 0:00 0:00 0:00 0:00 Total ODD Hours: 1DD Remarks: Gb#1 Dally Operations Report 61,41 Daily Operations Report Daily Operations Report Well Name: G-1 Operator: BLMReport#: 5 Well Type: Oil&Gas Exploration Well API#: Report Date: 17 -Feb -19 Reid, NPR -Alaska "D #: Contract# Contacts Weather Supervisor: Shane Phone #: McGeehan (801)556A946 Gen. Conditions: Sunny Engineering Manager itch Sayers Phone 4: 281415-1408 Phase: Southwest l]A/OC: James Nunly Phone Aft 907-232-9952 Wind Direction: BIM Ph Rodney Phone 0: Brasher Wind Gusts(mph): 10 Temp. (Low, High): -15 Windchill Temp. ow, High), Well Status TD: GL, ft: Planned Days: PBM: RRB, ft: sort Date. Fluid in Well: OH ID, in: Operation Days: Last BOP Test: n/a last Safely Mtg: Last Evac Drill: Cs Strin OD(In) Depth (ft) Weight(#/ft) Integrity issues Outer Most: Conductor: Surface: Production: 113/4 Pump Parameters Pump# Type Model Rate (BPM) Pressure (psi) Mud /Brine Properties Fluid Type Weight pg) I Volume (bbls.I Cumulative Volume (bbls): Waste Fluids 0 Fluid Type Weight(ppg) Daily Volume(bbls.) Cumulative Volume(bbls): 1 Personnel 0 Personnel on Board: I Company #People Company #People Company #People Olgoonik 5 Guidence well 2 Operations Report 34 Hour summary: Set up Equipment around well 24 Hour Forecast: Heat up Brine, Thaw well down to depth USE Summary: Watch for open hole around work and coyer with ply wood, Proper hand placement From To Hours Operational Details ]W 7:00 0D0 Level up rig and block up 0:00 Inclose cellar 0-00 Heat up Rig and BOPS OW Hookup aaumalator, Function test pipe ams 0:00 Run deverter line to deyert tank, Blow down with air OW set cement unit and heat up 0:00 Rig up Rig OW Fill bider and build steam OW OW 0:00 OW 0:00 Tool Hours: 0:00 Remarks: 61,41 Daily Operations Report G1,111 Daily Operations Report Daily Operations Report WNI flame, G-1 Operator: BLm Report#: Report Date: Contract#. 6 18 Feb-19 Well Type: Oil& Gas Exploration Well API W. Field: NPR-Alaska PTD K: Contacts Weather Supervisor: Shane Phone #; McGeehan (801)556-0946 Gen. Conditions: Overcast Engineering Manager Zach Sayers Phone#: 281615-1408 Phase: OA/QC: James Nunly Phone#: 907-232-9952 Wind Direction: Southwest BLM Ph Rodney phone #: Bmshar Wind Gusts (mph); 10 Temp. (Low, High): -15 Windchill Temp. Low High), Well Status TD: GL, An Planned Days: 6 PBTD: RKB, ft: start Date: 16-Feb-19 Fluid in Well: OR LD, In: Operation Days: 1 Last BOB Test: 2/18/2019 Last safety Mtg: Last Evac Drill: 2/18/2019 Csg string 00 (in) Depth(ft) Wel(#/ft) Integrity Issues Outer Most: Conductor: Surface: _ Production: 113/4 4J Pump Parameters pump# Type Model Rae (RPM) Pressure (psi) Mud / Brine Properties Fluid Type Weight(ppg) Volume(bbh.) 6 BBL Cumulative Volume (bbls): Waste Fluidsype 0 tf 2Fluid Weight(ppg) Dally Volume(bbls.) Cumulative Volume(bbls): Personnel 0 Personnel on Board: 8 company #People Company #People Company #People Olgoonik Guidance well I 6 1 2 Operations Report 24 Hour Summary: Finish Rig up 24 Hour Forecast. Cement well with 20BBLe cement HSE summary: Working with hot fluid, Well control, Evaction drill From To Hours Operational Detalis 7:D0 8:00 IAO Raise Derrick 8:D0 10:30 2:30 Build 6 bbls 9.e lb brine 10:30 12:00 130 Close pipe rams test BOPS to 500psi, 10 minutes 12:00 19:00 7A0 Pick up 1.9 work string,Thaw down to 170', 9.8 lb brine at 120 degree 19:00 20:00 IAO Pull out of hole lay down work string, Shut well In 0:00 0:00 0:00 000 0:00 0:00 a:o0 0:00 Total Hours: I13A0 Remarks: G1,111 Daily Operations Report Gb#1 Daily Operations Report Daily Operations Report Well Name: Well Type: Field: G-1 Operator: BLM iReport #: Gil& Gas FxploraOon Well APIA: 50-287-10013-00 Reppr[Dat¢: Gubik Field PTD#: 1004-0137 lContract #: ] _ 19 Feb 19 Contacts Weather SupeMsor. Shane Phone #: McGeehan (801) 556-0946 Gen. Conditions: C nn.vt Engineering Manager Zach Sayers Phone N 281615-1408 Phase: QA/QC: James Nunly Phone W. 907-232-9952 Wind Wrectlon: Southwest BIM Ph Rodney Phone III: Brashar Wind Gusts(mph): 45 Temp. (Low, High): .15 Windchill Temp. (Low, High), Well Status TD: GL, ft: Planned Days: 6 wm—.- BID, k: start Date 16-Feb-19 Fluid in Well: OH W, In: Operation Days: 2 last BOP Test: 2/18/2019 Last Safety Mtg: Last Evac Drill: 2/18/2019 Csg Siting OD (in) Depth [ft) Weight(#/ft) Integrity Issues Outer Most: Conductor: Surface: Production: 113/4 47 Pump Parameters Pump# Type Model Rate BPM) I Pressure (psi) FMC Mud / Brine Properties Fluid Type We9t(p Volume bbls.) Had .8 15 - ' Cumulative Volume(bbls): 15 Waste Fluids Fluid Type Weight(ppg) Dally Volume(bbls.) _ - Cumulative Volume (bbls): 0 Personnel Personnel on Board: 9 Pe#ople Company #People Company 9P! e iMan Olk 6 Guidenc<_well 2 BLM 1 Operations Report 24 Hour Summary: Thaw Down to 170' 24 Hour Forecast Cement well with 20BBLs 15.8 Lb cement HSE Summary: Working in high winds, Keep in radio contact at all times, Hand placement when opening doors From To Hours Operational Details 700 8:00 IAO Pick up 1.9 work string, Run in hole to 170' 8:00 9:00 1:00 Circulate 1/2 BPM 50 psi, Heat up well to 120 Degree 900 9:30 0:30 Fill Cement unit with mix water and rinse aid water 9:30 10:00 0:30 Wind gusts to 45 MPH, Do to high winds cement will not be mixed until wind lays down 10:00 11:00 1:00 Pull work string, Shut well in 0:00 Secure equipment 000 0:00 ODO 000 000 0:00 000 Total Xours: 400 Remarks: Gb#1 Daily Operations Report Gb#1 Daily Operations Report Daily Operations Report Well Name: G-1 operator: BLM Report#: _8 19-Feb-19 Well Type: 0'd& Gas Exploration Wel l Apl#: 50.28]-10013U0 Report Date: Field, Gubik Field Pro #: 1004-013] Contract p: _ Contacts Weather Superyisor: Shane Phone #; (801)556-0946 Gen. Conditions: Sunny McGeehan Engineering Manager 29th Sayers Phone#: 281-615-1408 Phase: James Nunly Phone t. 907-2324952 Wind Direction: Southwest QA/QC: BLM PI: Rodney Phone #: WindGusts (mph): 5 Brasher Temp. lixey, High): -15 Windchill Temp. tow High), Well Status TD: G4 R: Planned pays: 6 PBTO: Sol, it; Start Date: 16-Feb-19 Hold in Well: OH ID, In: Operation Days: 3 Last BOP Test: 2/18/2019 last Safety Mtg: Last Evac Drill: 2/18/2019 String OD (in) Depth (R) Weight Wfs Integrity Woes Outer Most: Conductor: Surface: Productlon: 113/4 47 Pump Parameters Pump# Type Model Rate(SPM) Pressure( si FMC Mud / Brine Properties Rod Type 1 W-Ighttpp ) Volume(bbls.) Ned 9.8 28 Cumulative Volume(bbls): 28 Waste Fluids Fluid Type Weight(ppg) Dally Valume(bbls.l NaCl 98 Cement rinse Aid 8.31 28 10 Cumulative Volume lbbls): 38 Personnel Personnel on Board: 9 COT an If People Company --a People Company p People Olgoom 6 Guidance well 2 BLM 1 Operations Report 24 Hour Summary: Wait on wind to lay down 24 Hour Forecast: Ecavate around well 6' down, Check depth of cement, Top off if needed HSE Summary: Over head loads, Working with chemicals From To Hours Operational Details 7:00 8:30 1:30 Pick up 1.9 work string Run In hole to 170' 8:30 9:30 1:00 Circulate 1/2 BPM 50 ;ml, Heat up well to 120 Degree 9:30 11:00 1:30 Mix 5 super sacks cement, Total 20 bbls 16 Lb 11:00 12:00 140 Displace well with 20bbls cement, 1/4 bbl cement Back, Displacement 20 this brine 12:00 12:30 0:30 Pull work string out of wall 12:30 16:30 4:00 Clean up cement unit, Rig down rig 16:30 19:00 2:30 Clean out reWan tank and rig down BOPS Os10 0:00 Mark trail to Gubik#3, Clear out around well OW OW 0:00 0:00 Total Hours: I12:00 Remarks: Gb#1 Daily Operations Report Winston, Hugh E (DOA) From: Eagle, Amanda <aeagle@blm.gov> Sent: Tuesday, May 7, 2019 10:20 AM To: Winston, Hugh E (DOA) Subject: Re: [EXTERNAL] Grandstand and Gubik Legacy Wells 10-407's Hi Huey, The KB is reported as distance above GL, IE for Grandstand 1 the actual KB is 660'. This is true for the reports of all three wells. Amanda Eagle Petroleum Engineer State Office Desk: 907-271-3266 Cell: 907-538-2300 aeagle@blm.gov On Tue, May 7, 2019 at 10:16 AM Winston, Hugh E (DOA) <hugh.winston@alaska.gov> wrote: Hello, I've just received three 10-407 well completion reports for the following three wells and I need to verify the information given in box 9 please. The KB that is reported is smaller than the GL. Thanks Wells PTD# -100-053 Grandstand Test #1 PTD# -100-221 Gubik Test #1 PTD# -100-222 Gubik Test #2 Huey Winston Statistical Technician Alaska Oil and Gas Conservation Commission hu¢h.winstonCdalaska.Qov 1 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.doe% 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[.Ni\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 I BLM 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 f+lone IYOMWil Low RNooe ane None 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 ncf drill fluid assessmcnf &work Ian dnllxs fluids tett rn hale no data well skelch 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 hole 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 & Workplan 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 berm 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 None 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. neve 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 Care #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 t 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 openrigd ng No release. drillingfluid left in hole round Simoson Care Tesl #15 US Na !BLM Low None None d wooden cellar, 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 san 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 f'tone 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 2004 crude nil left in hole out of ground Need HIR, PA, Workplan for Sl with Sampling- openrigd ng ❑rilling Mud Assessment . out grouunnd in Surface Cleanup. Site d wooden cellar, 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 see 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 valve on city ground; rig 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 Cemented at 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 None 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 test #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 I 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 Knifeblade #1 US Navy! 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% sticking 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 casing 7? No Cleanup no data data Not abandoned, site not cleared, 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 concrete 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 Test 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 MonthlyMeeiin 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 remediated surface site remediated suriacx V le remediated surface site remediated 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 Yes, 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 THE STATE July 11, 2013 g 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: t n o -22k Canservatton Division of Spill Prevention and Response Contaminated Sites Program 610 University Ave. Fairbanks, Alaska 99709-3643 Main: 907.451.2181 Fax: 907.451.2155 NED APR 0 1 2094 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 regulator- 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. r_•� en a u� reg Fa a>.�i F a:� P�\ r:.,a:� FP iP�,l Ao,,r;eq\1')nT\RT.M\Proiects\Leeacv Wells\711 13 Letter to BLM on Legacy Wells.docx Wayne Svejnoha 3 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, 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 GASPAM\CS\Federal Facilities\Civilian Federal Agencies \DOI \BLM\Projects \Legacy Wells\7 11 13 Letter to BLM on Legacy Wells.docx SPAR Response with Legacy Wells List.xlsx Evidence o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status Fite #/Hazid Release? SPAR Mlorkgroup Notes Status Status Simpson Core Test #5 US Na / BLM Low None None Unknown Need HRR, PA, SI no data no data Simpson Core Test #6 US Na / BLM Low None None Unknown Need HRR, PA, SI no data no data Need PA incl drill fluid Simpson Core Test #7 US Na / BLM Low None None Unknown assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid Simpson Core Test #8 US Na / BLM Low None None Unknown assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid Simpson Core Test #9 US Na / BLM Low None None Unknown assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid Simpson Core Test #10 US Na / BLM Low None None Unknown assessment & workplan drilling fluids left in hole no data well sketch provided by Need PA incl drill fluid BLM not consistent with Simpson Core Test #11 US Na / BLM Low None INone Unknown assessment & workplan AOGCC or BLM data no data Need PA incl drill fluid Simpson Core Test #12 US Na / BLM Low None None Unknown assessment & workplan drilling fluids left in hole no data Need PA and SI incl drill fluid assessment, workplan incl sampling stressed debris, partially Simpson Core Test #16 US Na / BLM None- Uncased, i None None Unknown areas gas blowout and fire reve etated site Need PA incl drill fluid Simpson Core Test #17 US Na / BLM None- Uncased, i None None Unknown assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid Simpson Core Test #18 US Na / BLM None- Uncased, i None None Unknown assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid Simpson Core Test #19 US Navy / BLM None- Uncased, i None None Unknown assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid Simpson Core Test #20 US Navy / BLM None- Uncased, r None None Unknown assessment & workplan drilling fluids left in hole no data Simpson Core Test #21 US Na / BLM None- Uncased, r None None Unknown Need HRR, PA, SI no data no data Need PA incl drill fluid Simpson Core Test #22 US Na / BLM None- Uncased, r None None Unknown assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid Simpson Core Test #23 US Na / BLM None- Uncased, r None None Unknown assessment & workplan drillinq fluids left in hole no data Need PA incl drill fluid Simpson Core Test #24 US Na / BLM None- Uncased, t None None Unknown assessment & workplan drilling fluids left in hole no data Need PA incl drill fluid drilling fluids and ball Simpson Core Test #25 US Na / BLM None- Uncased, r None None Unknown assessment & workplan peen hammer left in hole no data overshot, drill collar, rock revegetated -- BLM Ik ik uk Core #1 US Na / BLM Low None None Unknown Need HRR, PA bit, and N -rods left in hole can't find it Review Report as PA. No evidence of sheen, stressed veg, or drilling waste on surface. Veg Not abandoned, Square Lake #1 US Navy/ BLM Low None lNone No appears healthy Pluaaed to surface site not cleared Page 1 of 14 SPAR Response with Legacy Wells List.xlsx Page 2 of 14 • vi en6e o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP I Land Mgr Priority CSP Status File #/Hazid Release? SPAR Workgroup Notes Status Status _ plugging operations inadequate and Wellhead left as Umiat #3 US Navy / BLM / FUDS None pendinq clos 335.38.001/3092 Yes, see file Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umiat #4 US Na / BLM / FUDS None pending clos 335.38.001/3079 Yes, see file Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umiat #8 US Na / BLM / FUDS None pending clos 335.38.001/3081 Yes, see file Plugged by BLM in 2004 incomplete historic site? plugging operations inadequate and Wellhead left as Umiat #10 US Navy / BLM / FUDS None pending clos 335.38.001/3082 Yes, see file Plugged 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 / 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. East Simpson #1 USGS / BLM Low None None Yes Cleanup. to surface. >100 Pylons Need HRR, PA, SI with Wood and metal Drilling mud assessment. debris. Pylons. Photos show areas of no Plugged to 2047'. Diesel Tankage for Ik ik uk #1 USGS / BLM Low None None Yes vegetation. to surface. flammable fluids Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 1400'. Drilling Wood and metal Koluktak #1 USGS / BLM Low None None Yes 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 rua #1 USGS / BLM Low None None Unknown Cleanup. to surface debris. Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 4464'. Drilling Wood & metal Ku anak #1 USGS / BLM Low None None Yes Cleanup. 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 #1 USGS / 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 Ini ok #1 IUSGSIBLM Low lNone lNone IYes lCleanup. mud & diesel to surface ldebris. Page 2 of 14 • SPAR Response with Legacy Wells List.xlsx Page 3 of 14 BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #IHazid Release? SPAR IA/orkgroup Notes Status Status J Need HRR, PA, SI with r sampling. Drilling mud assessment. Surface Cleanup. Site photos show areas of stressed vegetation. No issues Plugged to 2232'. Diesel Wood and metal North Kalik ik #1 USGS / BLM Low None None Yes noted in USGS report. to surface debris. Pylons Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Plugged to 2026'. Diesel Wood and metal Peard #1 USGS / BLM Low None None Yes Cleanup. to surface debris. Pylons Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Oil reported bubbling to the surface within reserve pit in 1982. Oily residue and sheen observed adjacent to east side of reserve pit, down hole material at the Plugged to 1875'. Diesel Wood and metal South Meade #1 USGS / BLM Low None None Yes surface to surface debris. Pylons Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Reserve pit berm had breaches allowing water to exit. Oil - stained sediment was observed above the Plugged to 1478'. Diesel Wood and metal Seabee #1 USGS / BLM Low None None Yes waterline of the pit. to surface debris. Site photos may show hydrocarbon sheen on Plugged to 2600'. Drilling Wood and metal Tula eak #1 USGS / BLM Medium None None Yes 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 pit/flare pit. Rising bubbles of oil observed in flare pit 1984. Photos show Plugged to 1825'. Diesel Metal debris. Tunalik #1 JLISGSIBLM I Low I None lNone lYes istressed vegetation Ito surface 1 Pylons Page 3 of 14 SPAR Response with Legacy Wells List.xlsx Page 4 of 14 vi ence o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR Workgroup Notes Status Statin j Need HRR, PA, SI with � � sampling. Drilling mud assessment. Surface Cleanup. Breaches in berm allow water to flow into and out of reserve pit, sheen on Plugged to 2700'. Diesel Wood and metal West Dease #1 USGS / BLM Low None None Yes surface water in well cellar to surface debris. 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 2289'. Drilling Wood and metal South Harrison Bay #1 USGS / BLM Low None None yes present at surface mud & diesel to surface debris. Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Stressed vegetation noted and apparent in site photos. Plugged to 2443'. Drilling West Fish Creek #1 USGS / 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. East Simpson #2 USGS / BLM Low Active 300.38.109/2651 Yes, see file the rig foundation to surface Pylons South Barrow #4 US Na /North Slope Boro 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 #6 US Na /North Sloe Boro None None None Unknown Need HRR, PA, SI no data no data South Barrow #9 US Na /North Slope Boro None None None Unknown Need HRR, PA, SI no data no data South Barrow#10 US Na /North Sloe Boro None None None Unknown Need Surface Status completed gas well no data South Barrow #12 US Na /North Sloe Boro None None None Unknown Need HRR, PA, SI no data no data BLM well sketch not consistent with AOGCC South Barrow#14 US Na /North Sloe Boro None None None Unknown Need HRR, PA, SI data no data Need PA incl drill fluid well left filled with drilling South Barrow #16 US Na /North Sloe Boro None None None Unknown assessment & workplan mud and diesel no data Need PA incl drill fluid tubing in well, no perfs, South Barrow #17 US Na /North Sloe Boro None None None Unknown assessment & workplan unknown fluids no data Page 4 of 14 SPAR Response with Legacy Wells List.xlsx Page 5 of 14 vi ence o ' '-' I BI_M 2013 Risk Historic Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR lMorkgroup Motes Status Status ` South Barrow #18 US Na /North Slope Boro None None None Unknown _AOGCC Need Surface Status completed gas well no data Walak a #1 USGS / Unknown None None None Unknown Need HRR, PA, SI no data no data csg @ 890'. Multiple cement plugs of unknown volume. Shallowest Gubik #1 US Na / Unknown Low None None Unknown Need HRR, PA, SI 800' no data Add to Site list. Need HRR, PA, SI with sampling. csg @ 800'. Well blowout Drilling mud assessment. from zone at 1800' during Surface Cleanup. Photos plugging operations. show disturbed/ stained Plugging never Gubik #2 US Na / Unknown Low None None yes areas completed after blowout. no data two downhole cement plugs of unknown depth Grandstand #1 US Navy / Unknown None None None Unknown Need HRR, PA, SI and volume. no data Add to Site list. Need HRR, PA, SI with sampling. Drilling 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 the reserve pit,. Area does not appear to be revegetating, perhaps from the presence properly plugged but no of drilling mud at the data on abandonment W T Foran #1 " USGS / Unknown Low None None Yes surface status no data On Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Stressed vegetation, photos show plugged, but not open csg; metal & Cape Halkett #1 " US Na / Unknown Low Active 300.38.108/2689 Yes, see file site underwater abandoned at surface concrete debris under 5' of water, Mina Velocity #1 US Navy/ BLM one None None Unknown Need HRR, PA, SI 27' o en csg 31'. 280' of drill rill collar, and core rbeft Oumalik Core #1 US Na / BLM None -No observa None None Unknown Need HRR, PA, SI. in hole. reve etated Page 5 of 14 SPAR Response with Legacy Wells List.xlsx Page 6 of 14 BLM 2013 Risk v� ence of Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR Workgroup Notes Status Status Need HRR, PA, Workplan for SI with Sampling. Drilling Mud Assessment. Surface Cleanup. Photos show debris, stressed No csg. 15' of drill pipe Oumalik Core #2 US Navy/ BLM Low None None Yes vegetation and rock bit left in hole. no data Need HRR, PA, Workplan for SI with Sampling. open csg & other Drilling Mud Assessment. piping sticking out Surface Cleanup. Reports of ground; wood, of debris, drilling muds on metal, concrete Oumalik Core #11 US Na / BLM Low None None Yes surface csg to 9'. debris open csg sticking out of ground; wood & metal Oumalik Core #12 US Na / BLM Low None None No Need HRR, PA, SI no data debris buried by landslide, Need HRR, PA, Sl. Well not no data on Sentinel Hill #1 US Na / BLM Low None None Unknown apparent in site photos csg to 30'; underwater status Need HRR, PA, SI. No evidence of sheen, open csg slightly stressed veg, or drilling above ground waste on surface. Veg 37' of csg, drilling fluids level; wood and Simpson Core Test #1 US Navy/ BLM Low None None No appears healthy left in hole metal debris Need HRR, PA, SI. No evidence of sheen, stressed veg, or drilling waste on surface. Veg 76' of csg, drilling fluids Simpson Core Test #2 US Navy/ BLM Low None None No appears health left in hole no data Need HRR, PA, SI. No evidence of sheen, stressed veg, or drilling waste on surface. Veg 61' of csg, drilling fluids Simpson Core Test #3 US Navy/ BLM Low None None No appears healthy left in hole no data Need HRR, PA, SI. No evidence of sheen, stressed veg, or drilling waste on surface. Veg —60' of csg, drilling fluids Simpson Core Test #4 US Navy / BLM Low None INone No appears healthy left in hole no data Need HRR, PA, SI. No evidence of sheen, stressed veg, or drilling waste on surface. Veg csg cemented @25'; open csg sticking Simpson Core Test #13 US Navy/ BLM Low None None No appears healthy drilling fluids left in hole out of ground Need HRR, PA, SI. Vegetated, no evidence of csg cemented @20'; open csg sticking Simpson Core Test #14 1 US Navy/ BLM I Low INone lNone INo Irelease. drilling fluids left in hole out of ground Page 6 of 14 SPAR Response with Legacy Wells List.xlsx Page 7 of 14 vi ence o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator I RP I Land Mgr Priority CSP Status Fite #/Hazid Release? SPAR Workgroup Notes Status Status Need HRR, PA, SI. open casing Vegetated, no evidence of csg set shallow; drilling sticking out of Simpson Core Test #14a US Navy / BLM Low None None No release. fluids left in hole round Need HRR, PA, SI. open casing Vegetated, no evidence of csg cemented @18'; sticking out of Simpson Core Test #15 US Na / BLM Low None None No release. drilling fluid left in hole ground . Need HRR, PA, SI. Site photos appear to show oil at surface, from a natural csg @ 350'. Completed in oil seep; seep, also drilling mud in oil well. Open perfs. At wellhead sticking sacks on the tundra. one time capable of up. metal debris Simpson Core Test #26 US Na / BLM Medium None None Yes Plugged by BLM in 2004. unassisted flow. and rusting barrels Need HRR, PA, SI. Site photos appear to show oil csg cemented at surface, from a natural @102';drilling fluids on oily ground; csg seep. Plugged by BLM in including diesel and & wellhead stick Simpson Core Test #27 US Navy/ BLM None None None Unknown 2004. crude oil left in hole out of ground Need HRR, PA, Workplan for SI with Sampling. Drilling Mud Assessment. open csg sticking Surface Cleanup. Site out of ground in photos appear to show a wooden cellar; pile of drilling mud about csg @110'; drilling fluids wood & metal Simpson Core Test #28 US Navy/ BLM Low None INone Yes 100 feet from the well left in hole debris. Solid waste Need HRR, PA, SI. No evidence of sheen, stressed veg, or drilling waste on surface. Veg csg cemented at 152'; open csg. Wood Simpson Core Test #29 US Navy/ BLM Low None None No appears healthy drilling fluids left in hole and metal debris Need HRR, PA, SI. Drilling mud at surface, but well is also in the middle of a large in oil seep; open oil seep and surrounded by csg sticking up; pooled oil. Plugged by BLM csg cemented at150'; wood & metal Simpson Core Test #30 US Navy/ BLM Low None INone Yes, see notes in 2004. drilling fluids left in hole debris Need HRR, PA, SI. Well is on oily ground; csg in the middle of a large oil & wellhead stick seep and surrounded by csg cemented at 100'; out of ground, pooled oil. Plugged by BLM drilling mud left in hole; wellhead leaking Simpson Core Test #30a US Navy/ BLM Low None None Yes, see notes in 2004. gas blowout at 423' as Need HRR, PA, SI. Leaky valve replaced in 2001, little evidence of contamination following valve on oily ground; csg replacement. Plugged by csg cemented at 100'; & wellhead stick Simpson Core Test #31 US Navy/ BLM None None None Yes, see notes IBLM in 2004. 1 drilling fluids left in hole loutofground Page 7 of 14 SPAR Response with Legacy Wells List.xlsx Page 8 of 14 10 BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR VVorkgroup Notes Status Statue J Need HRR, PA, Workplan csg cemented at for SI with Sampling. 1028';cement plugs at Drilling Mud Assessment. 6387' and 5520'; fish in Surface Cleanup. Drilling hole; drilling fluids left in No data. Open Simpson Test Well #1(aka US Navy/ BLM Low None None yes muds near wellhead hole casing. Need HRR, PA, Workplan for SI with Sampling. Drilling 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, metal, and months. BLM is concerned csg @2915. Slotted liner concrete debris. Fish Creek #1 US Navy / BLM Medium None None Yes about exposure to wildlife to TD. Completed oil well Rusting barrels Need HRR, PA, Workplan for SI with Sampling. casing cemented at 48'; Drilling Mud Assessment. gas flow and explosion Surface Cleanup. Small gas while drilling at 863` hole leak in wellhead flange, will filled with fresh water to Wolf Creek #1 US Na / BLM Low None None No flow if the valve iso en 330' No data. csg cemented at 53';hole left filled with fresh water; Wolf Creek #2 US Na / BLM Low None None No Need HRR, PA, SI. fish in hole No data csg cemented at 107'; bridge plugs from 1447 to 1735' and from 554 to Wolf Creek #3 US Na / BLM Low None None No Need HRR, PA, SI. 661' No data Add to Site list. Need HRR, PA, SI with sampling. csg sticking 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 Test #1 US Na / BLM High None None Yes potential for contamination diesel left in hole rusting 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 #1 US Na / BLM Low None None No Potential for burned landfill. drilling fluids left in hole ldebris Page 8 of 14 10 SPAR Response with Legacy Wells List.xlsx Page 9 of 14 EV --I BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR Workgroup Notes Status Status i Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. open flange @ Surface Cleanup. Drilling Gas well. Open perfs. ground level. Mud pile overgrown with Drilling fluids and Metal & wood Meade #1 US Navy/ BLM Low None None No vegetation and lichen tubulars left in hole debris Need HRR, PA, SI. No evidence of sheen, open casing stressed veg, or drilling csg cemented at 502'; sticking out of waste on surface. Veg plug at 3470 to 3511` ground. Wood Titaluk #1 US Navy/ BLM Low None None No appears healthy drilling fluids 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 support structures and drilling muds. Stressed 2762'. Plug at 2543'. sticking up. Oumalik #1 US Na / BLM Low None None Yes vegetation Drilling mud left in hole Concrete debris. plate welded to pipe; l' of pipe csg cemented at 1100'. sticking up. East Oumalik #1 US Na / BLM Low None None No Need HRR, PA, SI. Drilling fluids left in hole Wooden debris. Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. open csg broken 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 left; concrete and other occupies the ground sidetrack hole left with debris. rusting To a uruk #1 US Navy/ BLM High None None Yes circulation lines. drilling fluids barrel Add to Site list. Need HRR, PA, SI with sampling. Drilling mud assessment. Surface Cleanup. Pile of csg to 1100'; plug at open casing drilling muds is next to the 1049'; drilling mud below sticking up. Wood, celler. No offical reserve pit plug; unknown fluids in metal, and glass East To a oruk #1 US Navy/ BLM Low None None No noted lopen hole debris. open casing Need HRR, PA, SI. BLM sticking up. Wood, states that there was no metal, and glass Knifeblade #1 US Navy/ BLM Low None None No debris at this site in 2012. csg cemented at 420'; debris. Page 9 of 14 SPAR Response with Legacy Wells List.xlsx Page 10 of 14 vi enceor' _—_— BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator I RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR INorkgroup Notes Status Status - open casing sticking up. Wood. metal, & concrete debris. rusting Need HRR, PA, SI. Reports barrels. One indicate solid waste csg cemented to 45',fish marked flammable Knifeblade #2 US Na / BLM Low None None No (drums) in hole hazard. open casing sticking up; metal & Knifeblade #2a US Na / BLM Low None None No Need HRR, PA, Sl. csg cemented at 38'; concrete debris Need HRR, PA, SI including leaching assessment. Site partially No wellhead. submerged intermittently csg cemented at 80'; Metal. Solid waste North Simpson Test Well 4 US Na / BLM Low None None No during the summer drilling fluids left in hole ? No data crude wellhead. Need HRR, PA, SI. Surface csg cemented at 685'; Wood and metal Umiat #1 US Na / BLM / FUDS Medium Cleanup cory 335.38.001/3090 Yes, see file Cleanup drilling fluids left in hole debris No wellhead. Gravel pad partially csg cemented at 486'; revegetated wood Need HRR, PA, Sl. Surface cement plug from 440 to debris and pipe Umiat #11 US Na / BLM / FUDS Low pending clos 335.38.001/3083 Yes, see file Cleanup 480'; sticking up csg cemented at 7206` Wellhead. Gravel various plugs from 8250' pad revegetated ? South Simpson #1 US Na / 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 quantities of ferrous oxide, zinc oxide, zinc carbonate, and barium sulfate were added to drilling muds. Stains apparent in photos. BLM field camp on site. Walls between the reserve and flare pits have eroded. Wellhead and Water flows into surface gravel pad. ? No Ini ok #1 USGS / BLM I Low INone None IYes water during bre kup. I no data jdata Page 10 of 14 SPAR Response with Legacy Wells List.xlsx Page 11 of 14 vi ence of BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR Iflorkgroup notes Need HRR, PA, SI. Surface Status Statue n- —_— Cleanup. Photo CIMG0218 csg cemented at 53'; shows area of disturbed tubing hung to 708'; hole open casing vegetation that should be left filled with drilling mud sticking up; wood & Arcon Barrow Core #1 US Na / BLM Low None None Yes investigated during SI and diesel metal debris open casing Need HRR, PA, SI. Surface csg cemented at 816'; sticking up; wood & Avak #1 US Na / BLM Low None None No Cleanup. plugset at 1348' metal debris Notabandoned, site not cleared, Need HRR, PA, SI. Surface open casing ?? No Barrow Big Rig #1 US Na / BLM None -debris la None INone Unknown Cleanup. no data data Not abandoned, site not cleared, Need HRR, PA, SI. Surface open casing ?? No Barrow Core Rig Test #1 US Na / BLM None-uncased ho None None Unknown Cleanup. no data data Need HRR, PA, SI with _ sampling. Drilling mud assessment. Surface Cleanup. Drilling Muds on site -slowly revegetating. Not abandoned, More information on drilling site not cleared, mud specifics is being open casing ??No Barrow Core Rig Test #2 US Navy / BLM Low None None researched no data data Need HRR, PA, SI with sampling. Drilling mud wellhead leaking assessment. Surface cemented csg to gas!! Wood & Cleanup. Cellar does not 1270';slotted liner to metal debris. Area Iko Bay #1 US Na / BLM - High None None Yes -Report notes retain water 1950'; tbg to 1939' affected 50'x50' Need HRR, PA, SI. Drilling csg cemented at mud assessment. Surface 441';hole left willed with open pipe; metal & South Barrow Test Well #1 US Na /North Slope Boro Low None lNone unknown Cleanup. On roads stem water concrete debris Need HRR, PA, SI. Drilling csg cemented at 2260; mud assessment. Surface perforated liner to TD; wood, metal & South Barrow Test Well #2 US Na /North Slope Boro Low None None unknown Cleanup. On roads stem tubing. Completed well. concrete debris Need HRR, PA, SI with sampling and workplan. Drilling mud assessment. Surface Cleanup. Drilling csg cemented at 1046'; open csg sticking mud at surface, Sheen on hole left filled with drilling up; wood & metal South Barrow Test Well #31 US Na /North Slope Borol Medium None INone Yes surface water in well cellar fluids and water debris Page 11 of 14 SPAR Response with Legacy Wells List.xlsx Page 12 of 14 vi ence o BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR Workgroup dotes Status :�P_ _ Status - no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthl Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test 4 US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Na / BLM I None-uncased hcl None lNone jUnknown lNeed HRR, PA, Inot in AOGCC database lMonthly Meeting Page 12 of 14 SPAR Response with Legacy Wells List.xlsx Page 13 of 14 BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator / RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR lllorkgroup Notes Status Status no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no AP I#, October, 2012 Oumalik Foundation Test A US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthly Meetin no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Navy/ BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthly Meeting no data. Likely revegetated. Removed from our list of wells of concern in < 50', no csg, no API#, October, 2012 Oumalik Foundation Test A US Na / BLM None-uncased hc None None Unknown Need HRR, PA, not in AOGCC database Monthly Meeting properly abandoned per then -applicable South Barrow #7 US Na / BLM None None None Unknown Need HRR, PA, properly plugged re s no data to support proper Umiat #2 US Na / BLM None Pending Clo 335.38.001/3078 Yes, see file Plugged to surface abandonment no data to support proper Umiat #5 US Na / BLM None Pending Clo 335.38.001/3078 Yes, see file Plugged to surface abandonment properly plugged and surface site Umiat #9 US Na / BLM Hi h -PCB cleanu Active 335.38.001/3093 Yes, see file abandoned remediated properly plugged and surface site Umiat #6 US Na / BLM None Pending Clo 335.38.001/3080 Yes, see file abandoned remediated properly plugged and surface site Umiat #7 US Na / BLM one Pending Clo 335.38.001/3091 Yes, see file labancloned Iremediated Need HRR, PA, Plugged by properly plugged and surface site Ati aru Point #1 USGS / BLM None None None No BLM in 2009. abandoned remediated Page 13 of 14 SPAR Response with Legacy Wells List.xlsx Page 14 of 14 BLM 2013 Risk Historic AOGCC Subsurface AOGCC Surface Well Name Operator/ RP / Land Mgr Priority CSP Status File #/Hazid Release? SPAR Workgroup Notes Add to Site list. Need HRR, Status Status PA, SI with workplan and sampling. Drilling 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 / BLM None None INone Yes by BLM in 2010. abandoned remediated On Site list. Need HRR, PA, SI with workplan and sampling. Drilling mud assessment. Surface Cleanup. In 1976 the reserve pit berm failed and drilling muds/cuttings were released onto the ice of Teshekpuk Lake. Plugged by BLM in 2008. Solid waste from camp and drilling operations buried on northern portion of pad. Erosion has exposed solid properly plugged and surface site East Teshek uk #1 US Navy/ BLM None Active - waiti 300.38.110/2652 Yes, see file waste. abandoned remediated Threatened by erosion. properly plugged and surface site J. W. Dalton #1 USGS / BLM None None None No Plugged by BLM in 2005. abandoned remediated properly plugged and surface site South Barrow #8 USAF/BLM None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface site South Barrow #11 US Na /North Sloe Boro None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface site South Barrow #13 US Na /North Sloe Boro None None None Unknown Need HRR, PA, abandoned remediated 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 /North Sloe Boro None None None Unknown Need HRR, PA, abandoned remediated properly plugged and surface site South Barrow #20 US Na /North Sloe Boro None None None Unknown Need HRR, PA, abandoned remediated Need HRR, PA, drilling mud assessment, containment assessment, possible releases. Breaches allow water to flow into and out of properly plugged and surface site Walak a #2 USGS/ BLM INone INone INone Yes reserve and flare pits. abandoned remediated Page 14 of 14 Legacy Wells Summary Report Gubik Test Well #1 Gubik Test Well # 1 qj,0 /00 -a�-t SURFACE INFORMATION SCANNED JAN 0 9 M4 Site Location: Coordinates (DD NAD83) 69.4228° N, -151.4475° W. Gubik Test Well #1 is 16 miles east of Umiat and 54 miles south of Nuiqsut. It is approximately one mile outside of the NPR -A boundary. Gubik Test #2 is roughly 5,000 feet upstream from Gubik Test Well #1. The last site visit was in July 2012. Site Description: Gubik Test Well #1 is located near an old channel of the Chandler River [Figure 11. It sits on a low terrace that once represented the old floodplain to the river. The well pad is well-defined as there has been little vegetation regrowth since operations concluded in 1951. The casing was cut off at ground level at the bottom of the three foot wooden cellar [Figure 2]. Steel matting is present next to the cellar. An old structure, possibly associated with the Gubik drilling operations, is approximately 200 feet to the south [Figure 3]. There are approximately ten empty drums near the building. Additionally, there are two 8 %-inch casing strings in the ground adjacent to the east side of the building [Figure 4]. Both casings have been cut off at ground level. Their origin is undocumented and are too far away from the Gubik #1 Test Well to be a mouse or rat hole. Surface Risk Assessment: Low Justification: There are no known contaminants on the site. Presently, there is no threat from the Chandler River to Gubik Test Well #1 or the structure and its associated small amount of solid waste. The site does not pose a travel risk and visual resources are only minimally impacted. . r Y Figure 1: Aerial relationship of the Gubik #1 Test Well and the old building. There are approximately 200 feet of separation between the two. The unvegetated area represents the original drilling pad. The meander scar represents the remains of an old, inactive channel (June 2011). BLM Open File Report 127 • May 2013 115 Gubik Test Well #1 Legacy Wells Summary Report Figure 2: At the bottom of the 3 -foot cellar lies the open casing representing Gubik Test Well #1 (August 2002). Figure 3: Photo showing the old building with rusting drums, about 200 feet from the Gubik Test Well #1. Three cased holes are spaced out in the unvegetated portion of the pad (foreground), but the 8 %-inch casing is not visible from this height (June 2003). 116 BLM Open File Report 127 9 May 2013 Legacy Wells Summary Report Gubik Test Well #1 Figure 4: Photo showing the 8 %-inch casing of unknown origin near the old building and about 200 feet from the Gubik Test Well #1 (June 2003). SUBSURFACE INFORMATION Well Information: Well History: The Gubik Test Well #1 was drilled on the west side of the Chandler River a little more than a mile above its junction with the Colville River in May 1951 at an elevation of 141 feet (above sea level). The test well reached a total depth of 6,000 feet. Five cement plugs were set by the U.S. Navy prior to well completion in August 1951. Plug depths are at 3,625 feet, 1,650 feet, 900 feet, 870 feet, and 800 feet [Figure 5]. A surface plug was not set (Robinson and Bergquist 1958). Gubik Test Well #1 was originally drilled on Federal ground by the U.S. Navy; however, the land was selected by and conveyed to the Arctic Slope Regional Corporation on Sept. 27, 1995, for both surface and subsurface. • Well Condition: There is no wellhead. Gubik Test Well #1 is represented by 8 %-inch open casing. There is no associated rat hole. • Wellhead Components: There is no wellhead at this site. Geologic Setting: Gubik Test Well #1 was drilled near the apex of the Gubik anticline to test the oil and gas possibilities between the surface and the bottom of the sands that are productive on the nearby Umiat anticline. Gas in commercial quantities was found at a depth of 890 feet to 1,750 feet in the sandstones of the Tuluvak Tongue in the Prince Creek Formation (Upper Cretaceous) and at a depth of BLM Open File Report 127 • May 2013 117 Gubik Test Well #1 Legacy Wells Summary Report 3,350-3,700 feet in the sandstones of the undifferentiated Chandler and Ninuluk formations (Robinson and Bergquist 1958). The producing strata at Umiat, the upper and lower sandstone beds of the Grandstand Formation, apparently become finer grained eastward and in Gubik #1 are represented only by siltstone with a few thin beds of sandstone. Surprisingly good cuts were obtained from the silty clays in cores 42-44 and in core 50 of Gubik Test Well #1, considering the "tight" nature of these rocks (Robinson and Bergquist 1958). Development Potential: Industry has shown interest in this general area as exploration has occurred on neighboring State lands. Gas is the primary commodity in this area, but development is not likely until the construction of a gas line occurs for transportation to market. Groundwater Resource: Fresh water aquifers are not present due to the thick, continuous permafrost in this area. Other Information: There is no indication of hydrocarbon escapement at or near the well. Subsurface Risk Assessment: Low Justification: Gubik Test Well #1 reached a total depth of 6,000 feet with gas shows. There is no wellhead, but has five cement plugs that separate the different formations and contain all gas shows. 118 BLM Open File Report 127 • May 2013 3000' i 4000' 4500 5000' 6000 Figure 5: Gubik Test Well #1 wellbore diagram. BLM Open File Report 127 • May 2013 119 f� Legacy Wells Summary Report-- Gubik Test Well #1 -. o nipple/plug valve NTS ubik Test Well a 1 (NTS=Not'r Scale) 0' .4 16" welded casing w/guide shoe set to 68' 22 9' jacketed to 23" and cemented w/70 sx of Cal -Seal 500' , goo , cr^Q� 970 , 890' of 11 3/4' 47#, grade J-55, range 2, seamless 8 -round 1000' thread coupled casing set w/210 sx of Hi -Early cement lop 43' of casing cemented w/25 sx of Cal -Seal through I 1" pipe btw. Muck string and 11 3/4" casing displaced through guide shoe and float collar 1500' �G so, 2000' all casing left in hole when drilling was completed on 8/7/51 plugs were placed @ 3625'; 1650', 900', 870' and 800' 11 3/4" casing was about 12" off of cellar floor a steel plate was welded on top of the 11 3/4' casing w/a 2- nipple (9" long) welded on the top 2500' I capped w/a 2" Nordstrom plug valve hole left full of thin mud above the plug 3000' i 4000' 4500 5000' 6000 Figure 5: Gubik Test Well #1 wellbore diagram. BLM Open File Report 127 • May 2013 119 BLM REVIEW — WELLS OFF NPRA Grandstand Test #1 ( PTD 100-053) Surface status: Some debris, no wellhead.. X.-15 SCANNED JAN 0 9 Downhole status: Unknown. Drilled to 3939 fi. appears to have two downhole cement plugs at 3620- 36901t and 690-740ft. Geodata: Core data, OH logs on CD (RES. DENS) . OH DST's were done in 5 intervals (weak ,,as shows) Recommendation: Downhole plugs are secure. Excavate 5ft below GL , fill annulus with cement and cap with steel plate. Clean up surface debris. Gubik #1 (PTD 100-221) Surface status: No wellhead ... 3 ft cellar with pipe cut off. Old building 20011t away. Lots of surface debris Downhole status: Drilled to TD of 6000' and . 11 3/4" casing set and cemented at 890'. Multiple cement plugs pumped (3625', 1650' 900' 870' ,800 `....volume unknown) last plug at 800ft tested to 800 psi ok. Geodata: SP, RES logs on CD. Core and ditch description in well file. 8 OH DST's were done. Good Gas shows at 3500ft Recommendation: Appears to be properly secured downhole.. need surface P& A done. Remove cellar and old building .etc. Gubik #2 ( PTD 100-222) Surface status: Wellhead in place. Leaking gas at welded flange. Surface debris present. Downhole status: unknown. 11 3/4" Casing set and cemented at 800ft Well blowout and fire from zone at 1800 ft. during plugging operations (mud weight 12 ppg) . Drilled to 4620 ft. cement plugs set at 2300-2200 ft. no record of plugging well after blowout. Sanded off. At 1800 ft then filled with 204 bbls water and let freeze. Drillers lost 3 stands of drillpipe in well (never tagged) Leaking gas from wellhead .... (UPDATE SCHEMATIC with wellhead and fish) Geodata: DENS and RES on CD. Core and ditch description in well file. Recommendations: NOT secured properly. Need RWO to reenter well, remove ice barrier and set cement plug at surface casing shoe and inside casing. P & A per normal .. clean up site. • 0 BLM/ASRC Legacy Well Review. Cape Hackett #1 (PTD 100-101) Surface status: Wellhead still present with cellar and pilings in area. Photos available. (RBDMS status is SUSPENDED.) Downhole Status: Appears to be P & A `d properly downhole with cement to surface. Geodata: Sidewall core description, Sample description for well. Lithology log, OH data on CD. (RES, DENS) W T Foran #1( PTD 100-106) Surface status: Unknown... No photo of area. Well file indicates wellhead in place. (RBDMS status is P & A ) Downhole status: well appears to be properly P & A , cement plug to surface. Geodata: Core chips and mud log. No OH log data. Grandstand Test #1 (PTI) 100-053) Surface status: unkown . no photo. (RBMDS status is P & A) Downhole status: Unknown. Drilled to 3939 ft. appears to have two downhole cement plugs of unknown depth. No drilling reports except for summary page. Geodata: Core data, OH logs on CD (RES, DENS) , OH DST's were done in 5 intervals (weak gas shows) u ik #1 (PTD 100-221) Surface status: unknown... no photos of location. (RBDMS status is P & A) Downhole status: No wellbore diagram or drilling reports in file. Drilled to TD of 6000' and . 11 3/" casing set and cemented at 890'. Multiple cement plugs pumped (volume unknown) last plug at 800ft tested to 800 psi ok. Geodata: SP , RES logs on CD. Core and ditch description in well file. 8 OH DST's were done. Good Gas shows at 3500ft / Surface status: unknown. There is one photo of derrick available. Not sure if wellhead is present. RBDMS status is P &A Downhole status: unknown. 11 V Casing set and cemented at 800ft Well blowout from zone at 1800 ft. during plugging operations. Drilled to 4620 ft. cement plugs set at 2300-2200 ft. no record of nluaQina well after blowout. Sanded off. Geodata: DENS and RES on CD. Core and ditch description in well file. • • nipplelptug valve NTS Gubik Test Well #1 (NTS=Not To Scale) Na (�f� K ,�•� 0' 47 ON 16" welded casing w/guide shoe set to 68' 22.9' jacketed to 23" and cemented w/70 sx of Cal -Seal . -890' of 11 3/4" 47#, grade J-55, range 2, seamless 8 -round 1000' thread coupled casing set w/210 sx of Hi -Early cement top 43' of casing cemented w/25 sx of Cal -Seal through 1" pipe btw. Muck string and 11 3/4" casing S displaced through guide shoe and float collar 1500' C r'.LT 2000' 2500' 3000' all casing left in hole when drilling was completed on 8/7/51 plugs were placed @ 3625', 1650', 900', 870' and 800' 11 314" casing was about 12" off of cellar floor a steel plate was welded on top of the 11 3/4" casing w/a 2" nipple (9" long) welded on the top capped w/a 2" Nordstrom plug valve hole left full of thin mud above the plug 4000' 5000' 6000' %4 def Sraf Mea' - 4, Gubik #1 -� i • .w � ]' `fib if ,. � J...h, yi { it C 228 EXPLORATION OF NAVAL PETROLEUM RESERVE NO. 4, ALASKA, 1944-53 -' OIL AND GAS OIL AND OAS SHOWS The following table presents the oil and gas shows as logged by the contractor's well geologist, C. A. Everett, at the time the hole was drilled. Oil and gas shows, Gubik test well 1 Depth I ShowingI Remarks t (feet) 1,215 Gas in ditch------------------- Cut 1,438-1:495 Gas odor and very slight fluo- Formation tests 1 and 2, 1,438- Very pale straw colored_______________ rescence in cores. 1,495 ft. 1,585-1,738 Slight to good fluorescence--_---- Formation test 3, 1,681-1,738 ft. 1,840-1,897 Slight show of gas ---------------- _______________3,435-3,455 None---------------------------------- 3,435-3,455 Slight show of oil and very slight Formation tests 4 and 5, 3,435 - Extremely faint----------------------- show of gas. 3,519 ft. 3,502 Pale cut in ether----------------- Formation test 6, 3,488-3,519 ft. 3,519--3,702 Odors of gas from cores ------------ Formation tests 7 and ,8, 3,4917 Yellow. 10 3,608 ft. 4,261-4,543 Shaly cores bled traces of gas and 11 1,712 oil from fractures. Brownish yellow. I See list of formation tests in following column for additional information. The cuts listed in following table were made with carbon tetrachloride in the Fairbanks laboratory after the cores had been shipped from Naval Petroleum Reserve No. 4. Test for oil stain in CC4, Gubik test well 1 Core Depth (feet) Cut Residue 1, Very pale straw colored_______________ Pale yellow. 3 ` 1,096 -----d0- ------------------------------ Do. 6 1,224 None---------------------------------- Slight yellow greasy stain. 7 1,450 Extremely faint----------------------- Very pale yellow. 8 1,458 -----do--------------------------------- Do. 9 1,471 Pale straw colored--------------------- Yellow. 10 1,491 ----- do---------------------------------- Pale yellow. 11 1,712 Yellow-------------------------------- Brownish yellow. 12 1,730 -----do--------------------------------- Do. 24 3,266 Very pale straw colored________________ Yellowish greasy stain. 25 3,361 None-------------------------------- Greasy stain. 27 3,464 Very pale straw colored---------------- Yellowish greasy stain. 28 f 3,489 ---d°--------------------------------- Greasy stain. 1 3,500 None---------------------------------- Do. 29 ( 3,503 Straw colored-------------------------- Yellow. 1 3,518 -----do--------------------------------- Do. 30 3,522 None---------------------------------- Yellowish greasy stain. 3,532 -----do------------------------------- Do.. 31 3,542 -----do--------------------------------- Greasy stain. 3,� ---do------------------------------- Do. 323,559 -----do-------------------------------- Do. 33 3,571 -----do-------------------------------- Do. 3,580 Very pale straw colored---------------- Do. 34 J 3,594 Pale straw colored--------------------- Yellow. l 3,598 - 42 4,279 ----- do--------------------------------- Pale yellow. 43 4,283 -----do--------------------------------- Do. ( ¢'292 -----d°---------=--------------------- Do. 44 i 1 4,301 -----do--------------------------------- Yellow. 50 5,441 Straw colored-------------------------- Pale yellow. One oil -saturation test was made: a sample from core 3 ata depth of 1,096 feet contained a trace of petro - Joe Z leum, and 15.7 percent of basal sediment and water by volume. A chloride test with silver nitrate was positive. FORMATION TESTS Test 1, 1,.438-1,.495 feet -A Johnston formation tester was run with a Ys -inch bean, 57 feet of tailpipe, and a 9% -inch packer set at 1,438 feet. There was no blow in one-half hour. The tester was closed for 15 minutes and then pulled. The fluid rose 100 feet. The pressure chart showed that the retaining valve did not open and was leaking. No test was obtained. Test °L, 1,438-1,.495feet-The bean was removed and test 2 was run with the packer, as above. Gas reached the surface in 13 minutes, and there was a fair flow for 17 minutes. The tester was closed 30 minutes. Re- covery consisted of 120 feet of drilling fluid, and the closed-ia pressure was 740 psi at 80°F. Test 3, 1,681-1,738 feet -The formation tester was run with 57 feet of tailpipe, two pressure recorders, and a %-inch opening (no bean). The 95s -inch packer was set at 1,681 feet. The valve was opened, and gas came to the surface in a few seconds. The tester was open for 112 minutes and closed for 25 minutes. One sample of gas was taken for analysis. The gas volume was calculated to be 2,060,000 cubic feet per day. The valve seat leaked, and a reliable buttom-hole pressure was not obtained. The closed -in pressure was 450 psi. Test .4, 3,.4.35-3,519 feet -A tester was run in with a 9%s -inch packer, 84 feet of tailpipe, and two pressure recorders. The packer failed to hold at 3,435 feet. Test 5, 3,.4.40-3,519 feet -A tester was run in with a 95s -inch packer and 79 feet of tailpipe. The packer failed to hold at 3,440 feet. Test 6, 3,.488-3,519 feet -A 534 -inch packer was set at 3,488 feet with a %6 -inch bean, 31 feet of tailpipe, and two pressure recorders on the bottom. The flow rates by critical flow provers were: Y2 -in. orifice, 2,046,000 cu ft per day at 347 psig and 65°F. %4n. orifice, 2,444,000 cu ft per day at 178 psig and 64.5°F. 1 -in. orifice, 2,561,000 cu ft per day at 100 psig and 63°F. Test 7, 3,.491-3,608 feet -The tester was run with a 534 -inch packer set at 3,491 feet, 117 feet of tailpipe and two pressure recorders. The packer did not hold. Test 8, 3,521-3,608 feet -A packer was set at 3,521 feet and a tester run with a Y4 -inch bean, 86% feet of tailpipe, and two pressure recorders on the bottom. The gas flow rates were: 3+ -in. orifice, 388,700 cu ft per day at 271.4 psig and 46.5°F. ,t�-in. orifice, 798,100 cu ft per day at 125 prig and 52.5°F. -in. orifice, 823,200 cu ft per day at 50 psig and 52°F. 5 •. TEST WELLS, GUBIK AREA, ALASKA GAS ANALYSES .The gas analyses in the following table were made by the U. S. Bureau of Mines at Bartlesville, Okla. - Gas analyses, Gubik test well I Depth (feet) I 1,495 I 1,7381 1 3,519 Methane- — Ethane ----- Propane plus ----------------------------------- Nitrogen--------------------------------------- Noncondensables -------- ---------------------- Insufficient sample for complete analysis. 2 Ethane plus. 97.05 97.05 94.7 1.25 2.95 a 4.5 1.57 --------- ---------- 13 --------- 100.00 1 100.00 1 • 100.00 Arctic Contractors (written communication, 1953) report that— Drill stem tests at 1,681 to 1,738 ft. and 3,488 to 3,519 ft. gave volumes of gas in excess of 2 million cubic feet per day from sands of sufficient thickness, porosity, and areal extent to be considered commercial provided a pipe line and market were to be made available. LOGISTICS TRANSPORTATION Gubik test well 1 was drilled with a rig which was moved from the site of Fish Creek test well 1 (fig. 11). Early in 1951 two thousand tons of equipment was moved by tractor train to Gubik. During drilling operations an airstrip was maintained near the well site, but no heavy hauling was done by air. HOUSING Two quonsets, sixteen jamesway huts and six wani- gans were used. The quonsets housed the galley and messhall and the warehouse and storeroom. The other buildings were for sleeping quarters, recreation, geology - engineering office, utility, latrine, machine shop, water storage, boiler, and cement and chemical storage and were a few hundred feet southeast of the rig site. PERSONNEL A drilling foreman, a petroleum engineer, and a geologist made up the supervisory personnel. The rig crew consisted of 2 drillers, 2 derrickmen, 6 rotary -equipment helpers, 2 firemen, 2 heavy -duty - equipment mechanics, and an oiler. Other permanent employees were 2 cooks, a kitchen helper, a bull cook, a laborer, a tractor operator, an electrician, and a ware- houseman -timekeeper. Rig builders, carpenters, a cementer, a Schlumberger engineer, and a stoveman were brought in from Umiat or Barrow as the occasion demanded. I� U 229 VEHICLES AND DRILLING EQUIPMENT During drilling operations 2 weasels, 1 TD -9 crane (cherrypicker), 1 D8 Caterpillar tractor with dozer blade, and 1 Northwest crane were employed. The major items of drilling equipment used by Arctic Contractors were: 1 122 -ft Ideco derrick with racking platform and finger. 1 Emsco type NC -36-4 traveling block. 1 Ideco type CB -200 crown block. 1 Ideal National 50 drawworks with Parkersburg hydro- matic brake. 3 Caterpillar D-13,000 diesel engines. ` 1 Ideal type D swivel. 1 Ideal FE -17 %-in, rotary table. 1 Ideal C-250 7%x 15 -in. circulating pump. 1 General Motors quad 6 diesel engine. 1 Gardner -Denver 7% x 10 -in. circulating pump. 1 Marlow, model 445 with 5 hp electric motor cellar pump. 2 Mud tanks, 140 -bbl capacity. 1 Kewanee 35 hp boiler. 1 Shaffer blowout preventer. FUEL, WATER, AND LUBRICANT CONSUMPTION The materials used while drilling the test were as follows: 602,900 gallons of water, 63,759 gallons of diesel fuel, 1,322 gallons of 72 -octane gasoline, 813 gallons of lubricating oil, 445 gallons of thread lubri- cant, and 160 pounds of grease. DRILLING OPERATIONS RIG FOUNDATION The derrick and drawworks were mounted on pilings driven into the permafrost. After about 2 months of ,drilling, the substructure supporting the rotary table sank approximately three -fourth inch due to the weight of the drill column. Steel shims were made, inserted under the points of bearing, and rigidity was restored. While drilling, some difficulty . was experienced in keeping the rotary table alined with the drive chain, causing excessive wear of the latter. DRILLING NOTES The following table is composed of selected notes from the drilling records. Notes from drill records Depth (feet) Remarks 0----- Well spudded in May 20, 1951. 70_ _ - _ Casing set; 68 ft of 16 -in. welded casing with guide shoe; 22.9 ft of casing jacketed to 23 in. Cemented with 70 sacks of Cal -Seal. 675_ _ _ A 4 -in. pump hose to standpipe parted; replaced hose with 4 -in. steel pipe. 0 • !M0 EXPLORATION OF VFAVAL PETROLEUM RkSERVE NO. 4, ALASKA, 1944-53 "lYOtes from drill records—Continued Remarfca Casing, set; 890 .f is of 11 %-in. 47.1b, grade . .. 05, range 2, seamless 8 -round thread -coupled casing. 'Displaced mud with 34 bbl of diesel fuel and 10 bbl salt -water solution followed `by a neat slurry of 210 sacks Hi - Early cement. Top 43 ft of casing was cemented with 25 sacks of. Cal-Seal.through 1 -in. pipe between muck string and, 11% -in. casing. Cement was dis- placed through guide shoe, and float collar. 5,982- Main clutch.bearing burned out.. ,Shut down 2 days for repairs. 6, 000- Completed drilling Aug. 7, 1951. Suspended operations Aug. 11, 1951. Completion status: all casing was left in hole. Pumped cement into hole at 31625, 1,650, 900, 870, and 80,0 ft. Tested top plug at 800 psi with no measurable, drop in pressure in 15,min. The well head hook-up was left as follows: 11 �4 in casing about 12. in. above cellar floor; a steel plate welded on top of 11% -in.: casing,with 2-in.,nipple 9 in. long welded on top; capped with A 2 -in. Nordstrom plug valve. The hole was left full.of thin mud above the plug. One, small. mishap occuTred while the well ,was being drilled—the aircraft -warning light on the crown block shorted x4d caused a minor fire in the: canvas covering of the rig. The maximum.,putdpor tempera- ture was 79° on July 26th, and the minimum was .22° on May 24th. ' DRILL ANA CORE Brr1$ . . To the total depth of 6,000 feet, 50 drill bits (three 15 -in. and forty''sev6h' 10 a=im) we're used to drill 5,135 feet (including .35>ft .rathole) and 812 feet was reamed. Fifteen percent (900 ft), of the total depth of the hole was cored, employing' 50, core bits. Total recovery was 715.4 feet or 79.6 percent. See graphic log (p1:15) for further information on drill and core bits. DRILLINGI MUD The Contractor's petroleum engineer (written com- munication, 1951) states' A water base mud was used, to d'ri11 to the total depth. A 75 pound per cubic foot water=A4uagel drilling fluid was mixed initially. The shale formations drilled dispersed sufficiently to maintain the required quantity as drilling progressed. Small amounts of Aquagel were added to maintain desirable wall building properties. Baroid was used to, increase mud weight as gas bearing sands were encountered. Formations drilled contained high percentages of bentonite. The viscosity -increasing characteristics of bentonite required the use of considerable quantities of chemical thinners to keep viscosities at workable values... Anticipated short drilling time indicated the use of dehydrated phosphates for thinning agents and acid pyrophosphate and pyrophosphate were used. Que- bracho and Driscose were used to reduce water loss., No difficulties were e4countered on the mud control. The hole drilled clean and at no time was any difficulty experienced in running is or out. Tests show the native'elays produce a good filter cake of medium permeability. Gas flow during the tests did not increase appreciably with time indicating no serious mudding off of the permeable formations. The mud -treating materials used were: :. ,., ..: .. .-- - -- -'- Aquagel -.----------- ----------------- 115 sacks: Baroid_'_------,____' _-____------------ ------ 627 sacks. Quebracho----------------------------------- 3,085 lb. Sodium acid pyrophosphate__:e---------------- 735 lb. Tetrasodium pyrophosphate-------------------- 3,740 lb. Driscose-------------------------------------- 160 lb. Caustic soda--------------------------------- 370 lb. The following table gives the approximate amounts of materials used at the various depths. Drilling -mud characteristics and additives, Gubik test well I Depth (feet) Weight (]b/cu ft) Viscosity (seconds API) Filtra- tionloss (cc/30 min) Drilling fluid tem- perature (*F) Remarks 15------- ------ ` 48 ---------- ---------- 75------- 81 40 --------- ., 45' 105______ 81.5 ----------- ---------- 46 Added 2801btetrasodlumpyro- 365------ 72 45 ---------- •58 phosphate, 200 lb quebracho, 650-77 77 48' 5.5 59 100 sacks Aquagel, and 30 755______ 78 47 3.5 62 sacks Baroid. 835______ 78 47 2.5 70 890______ 77 45 `' 5.5 "SO Added 530 lb tetrasodium pyro. 1,090____ 75 42 '' 6 72° phosphate, 250 lb quebracbo, 1,245 ---- 79 45 5.5 70 9- sacks. Aquagel, and M 1,460____ 79 47 35 64 sacks Baroid. 11500__._ 87 45 4 62 1,655--.-- 95 . 56 3.5 1 68 1,735 _ _ _ - 95 59 4 62 Added 6751b tetrasodium pyro. 1,855'___ 95 60 3.5 78 phosphate, 260 lb quebracho, 2,M5 - , 95 .59 2.5, 72 and 90 sacks Barold. ' 2,225____ 95 60 3 72 2,445____ 95 60 .3.5 80 2,550 ---- 95 60 3 80 2,660---- 95 60 3 - 75 2,705____ 95 56 3 84 2,770---- 94 58 3 79` Added 225 lb tetrasodium pyro 2,840__•__ : 94 55 3 79 " phosphate. 2,930--'-- 94 57 3.5 82 2,950---. 93 50 3 84 3,050.___ 93 59 3 80 3,105---- 93 60 3:5 --_-_--=-- 3,185_:__ 94 57 ---------- 84 Added 345'lb tetrasodium pyro 3,.285 ---- _ 94 53 3 85 phosphate and 140 lb que 3,345 ---- 94 54 3.5 84 braebo. 3,430---- 94 55 3 • 85 3,480_ _ - _ 93.5 59 3.5 88 3,520_ _ _ _ 94 60 3,560_ _ _ _ 94.5 60 3.5 70 Added 245 lb tetrasodium pyro 3,585____ 9,4.5 56 ..2.5 70 phosphate and 110 lb que 3,610 ---- 94.5 56 3 70 bracho. 3,665 ---- 94.5 57 3.5 71 3,710.-_,_ 95 57 3 70 3,765____ 91 48 3 80 3,800---- 95 50 3 82 Added 826 lb tetrasodium pyro 3,895--.- 93.5 :. , 60. 4.5 82 phosphate, 295 lb quebracho 3,985____ 95 55 3 84 and 174 sacks Baroid... 4,085____ 95 60 3.5 84 4,170 _ _ _ _ 91 60 3.5 89, 4,260---- 94 60 5.5 80 4,280---- 93 58 --------- 80 4,330--_. 93 57 5 88 - 4,395_ _ _ _ 94 56 5 89 Added 100 lb tetrasodium pyre 4,505---- 94 •56 ' ' ',5.5 ------.--- phosphate, '3W lb sodiur 4,575---- 94 55 5.5 86 acid pyrophosphate, .330 1 11 4,655____ 95 56 5 86 quebracho, 16016 Driscose 4,740____ 94 56 5 85 20 lb caustic soda, and 7 4,775____ 94 57 4 85 sacks Baroid. 4,835____ 93 49 4.5 92 4.930---- 94 54 4.5 98 + 4 UNITED STATES DEPARTMENT OF THE INTERIOR �. GEOLOGICAL SURVEY Fairbanks, Alaska Oct., 5, 1951 Mrs. Helen N. ioeblich 3J22 (,�uebec St., N. W. Washington, D. C. Dear Helen: Transmitted herewith are the final written and graphic logs for Gubik Test Well Teo. 1 Sincerely, Thomas G. Roberts Chief of Laboratory Navy Oil Unit Encl. Cp • OFFICIAL r FOR ONLY CNO ...... Laboratory OPY ...... ITizxry Oil Uait ',laaka MST 1,04L 30'r I T -be Gublk structure was first recognized by field -Darties -Uu. the summereof 1944=-45. rtield vork was dons ag gain in the area in 1947 and in 19.90. Au elongated N -W anticliae -me outlined With Closure to the ',mot" Z'Sismic lavestigatlf:"sO- carried on in late 1950 by United GoQpl-g-sical Ca, further delireated the etruetv-re and coafirmea easterly closare'-. ChOik To -at Well Noe I is la, , ttv,' on Oke' arast; of b. --i anW.Clias at Lat", 6,31-, fu= 1 46' Na Long. 1.510 WO 06" W, aiii ',ba vest ba mk of the chrLr"dler Ground eleT%Vlon is 144.4' and 'Whe o.11e-1;-rtJ,,-1r of '.7;A rolzr, dri"7e buzh1.'?.,e datwm! was 156,50. Strad .PA --No samples i!n-r3 r-:+celvad lit from thi! first '751 of bola drilled. 33rom the well geologist,"s cc.escrlptiozn it, Is as-gvnad that the top 6V repir-t- sent surface '3and. gravel and `here is no way of ""etermining -biaea:er abase relatively uaconsolidated sedimamts all race.at'! river 16f them ma be Giiblk (Pleistocene) in a-0, 6 _. The uppermost Cretaceous 1'oxsat.or, sacowiterad is H of the C'ol.qille Groun., 67-8451,, It consists primarily 3f scifto medium light grey clV sha_2e, r'las some shale and verr fine to fine gr- ined =-iandstona. and abundant. All the sands ( ,,as distingq,-�ia,-ed *from those of Mone G) are much bentonita in the matrix., Coali� limestone and can,�;laaeratkis are rs,.ra or Inoceramus luadbrecklensiz., the thick--obelled , t 3 -) F�s n -t) lecy od, r, .a t,, P The first, chart granulas saass-'Ave of Via coarse_�" Zsond !3 '111t:holoiv loare foiuid at 8456. Tbds depth also co rxL,4 spc, ads appromimately raith, a faunal Hg R, Bergquist's report below,:, & I& made tip lamge],y o some shale and a fete relativel.- thin' co, -L 1--edz, The asn.de madinm 41;4i dsoa� ,n6 grainedo conglomeratic, soft, and: '''hey 1,1cir bojitzeaaite aj.tboiah ealearsons. Bentonits aad ben wiiti' shale ax -,i ?resp Lently foand la class associatlan with the coal beds.,, The top of Zone F is at aTrrproz!;*iiate3,v X406. T -as sandy zhal.�3 0occons bentonitic below this depth, wish lbf)no fra�_,msats aad 4.nocera.as '7-a le i Cal of Zone F,) tware fovad arTatlaal'_'y below 22-210-1 T . E—aj-7-le medium light gray, to medium gray with numerons silty q'4'.T,,!,mak8 "19 found harei: but the Obl,:idc paper described from the Zone r outa.rop at -i-raz not, rico&-al4ged, Lithologically (and thers is n,-,) S'narp 'oroak betw-3en Za'_-;� -2, and Zone S. The section gzradaa14 bocomes sandiell wit.a &3pth and the abmadaut 'bio �i tc. characteristic of the sands of Zone 1, gxadnelly decreaae,3, 'The postulated between the Upper and Lowe-- -Crataceo,,as (_bat-.,ieen Zones B, and 9 The "contact" is placed at a-pproxiaare,-;,y 30000., RESTRICTED FOR OFFICIAL USE ONLY :7 E Tbe sediments frca:a to the aot� depth of 60000 a-ra considered to be Aaoushuk Croup,,B- in =ood.H fairly clean, vary ,f _n.o to medium graine&. light gray sands are present from 3,15G-4000', Below this the section iD made up Mostly of silt 3b4aa and clay shale with a Y)readomaz =- ce of the la'ttsr� Bentonzi ti > clay shale is commoa below 46CO' Dips in V4-ts portion of the hole above 950€011 average 1-20 but below this depth increase to 100 or mann, Palsaax4"Q--'The following notes on the xna.l.eoantology' and coutacte were pre-, pared by ? .: R. Bar, uiat "Micropaleoaatol og7 of Ceabik Well `o, 1 kik Pa 0 c 674 Zone H 67 845' Upgrox, Zosne G 645 - 2OA01 Zone F 2090 a 30001 Zones D-3 3000 9 6000' (STI) Zone ll Ho diagnostic Zone E fauna is present, =she zone: being deter- mined enl.,6 by evaluation of the entire upper sequence of beds .and by cospari.soan with other test walls, 'Forams are few; the first 3351 are barren, i% half cloven calcareous species, represented by one or two speo- imeas of oa�che occur in this 335-385 interval, The few radiolarian ppecies encoexntvsed at 52510 6-751& and 795--885'o are of the sort found throughout the Upper Cretaceous section of trs Reserve, particularly in Zones H and 1. noceramus prism are common in samples from 500-8d5".: The diagnostic Zone H fomes,, Usobalimiana, nadsnsis, which was found in *%or,Wh 8imDsoa gest Well No., 1 in the interval from 180-900'' of the 1500 -foot section identified, as Zonae R, was not found is the Gu1bik well., but the same species of radi.o- laria as were associated with It i.n the ?north Sim-ason test do occur it the Gubik well. The bass of Zone R is placed at 8451, below a relativsly abundant fossilife ous sample, in that sample a :dew Zone E forams were found that did not occur higher in tb..e well, ,�_ Edi cating that the tons e r- teude at least through that sa=le, A slight litholo6ic change is reported by Anse Robinson below that depth.j. Zone 0 - aAuch of the inter -. al from 900-1.910" is faunally barreana a few aroaaceous specimens of forams being found, only at 1.115-451 1185-95� R and 1258-68% and a few radlol>aK�aa is the two last intervals listed., lnoceramnus shell material occurs in core;a at 145'7--6a'', 1.711-lW o and 1?2338 `'The interval from 191G-;.30301 has a few arana,ceous forms of the same species as found is Zone E� blit of bhe few pyritic radicl.aria taste found, there is one species of Zonodi.seus that has only been found in Zonae C sedimen.ts., Zone F w A minor lithologle break around. 2040" is constel red by =hiss Bobin.son to b�a the top of worse lr because there is no fau~°aal coaatrol for the upper 4004 of the zone., A few f ysh. bons fragrtants were fourxd. 111 sawrles at 2.210-2260° a Inoceramus prisms and a specimen of a Trochammiga 2 0 0 were found at MO -60v„ Only scattered foraminifer, and radiolaria, sperm amens were found in the interval from 24301 through the cora at 2954-740 Altbough the radiolaria, definitely can be assigned to Upper Cretaceous evecies, the few foraminifera cannot be determined specifically. The fauna is as follows; One specimen of Trot champ picked at 24M-401; a fragment of a. possible SnirgMlectammina, two pyritic casts of possible roidina So and a few radiolaria, {Zonodiscue and Diictromitra) specimens found at 2460-701,, 'two Zoaodiscue specimens and a fragment of a MManulina cage from the sample at 2490-990, and one EWto hrae ides cf. K at 2520-Z31; a Trochammina A at 2550-601; Trochammina A and T. ribstonensis specimens at 2670-80" and 2700-101; one Troebammina ribstonensis at 2750=£00 a From the 2700-109 sample came a, fragment of a Verneuilinoides, a specimen of 6impiectammina IT,, one Troclaammin:a Ab and three species of pyritic radiolaria, plus fish bons fragments. A few specimoas of radiolaria, Sao o - di , at 2780-2820, and two species of Cg osnhaera at 2834-40A, were also found. In the cored iAterval from 2954-74.4 there were round fine specimens of a Gaudrzine that check most closely with the Upper Cretaceous Gaud�ina 0 of Zones, and a single specimen of BulD which is the same as the species found in a core at 591-60V Z70—,"Aa �') of Umaiat Test well No. l. Eons l -A m There is little paleontologic data in the upper 3006 of the interval assigned to Zone S. In a core at 3051-700 there ars a few poorly preserved specimens of Verneuilinoides. Felosinaa Gaudrvina and Trochammina that could be either Zones l' or E species since preservation is too poor to ascertain definite identity. A few pyritic specimens of a Zonodiscus species found in Zones 19 and F were associated with the foraminifera. From 3070-•33101 the sediments were barren of microfossils, The core at 2342-524 has abundant Fellosina specimens such as occur in both ?ones -Z and F sedi— ments ( common in, Zone l: cores from 499-5193 in Umiat Test Mail No. 1) but the same species occurs in this well in a core at 3900-104 associated with Zone B forams. abundant Gam A, and a few specimens of Trociiammina A„ VerneRilinoides Fe and Miliammina -4 were also found in the core and these species ere part of the Zone A assemblage of !Foraminifera in a core at 3900-201. The prolific Zone B fauna, is first encountered in the well cut-, tinge at 3845-50c which is also the top occurrence of Laevidentaliumo" Oil amd Gas --Good shows of gas were obtained from the conglomerates and sands o; Zones G and R. The rare salads in Zones B and F are too silty, argillaceous or benton- itie. oil cuts in CC14 from Zones G and B ase generally only fair but this may be a result of the W81149 location high on the crest of the structure, Surprising:W good cuts were obtained from the silty clays in the Cores 4-P--44,, 4261-43(}5' and 1.n Core 50, 5441-581, considering the "tight" nature of these sediments, "Free oil on fracture faces" were reported at the well site from Gore 50, 0 The following Johnson Formation Tests iorere made. - #1 1438-1495" 8/64 beam, -7&lve to open JFT 71,12 1438-14951 Wo be=o gas to smrface lu IS rinv,., fair floe gas Shut in 30 min., BET '740 P$1. fliid rise 120�� A 6i 3 .1.681-17381 9/16" Opening, gas to surface in a. few seconds,, ShUt In 25 mine B.UF 450 PSI (valve seat leakf)Qo no fluid rise, no ail show. Calculated flow 20tM.', V"Ubaalw XT T 04 34.3.5-35190 packer f -Ailed to hold JIT fl5 3440-35194 'Packer failad to hold J"IT 06 3488-Z5lW 9/16 bean, 112" orifice., 2046 RCF/day at 34? PSIG and 659F, 31411 orifice, 211 -MCAP day at 178 PBry and 64,50F 1'*.4 orifice,, 2561 IMCF/day at lQ0, PSIG and 630F ro BEF recorded aA retaJ.'aing valve failed JFT*,7 3491-36084 packer failed to holt JFT#8 3521-36080 9/16 bean., Flowed. - 1/4" orificeo 3W7 P-11CF4Jday at 2771A PwPIG anti 46a50F 1123 orifice, 798.1 ",ZS/da;,r at 125 PSUG aad 520E 3/4"orifice, 823.2 MCF/day at tiO PSIG aad 520F, Oil Out$ in 0C14 Dare -2 2 R Rh 3 108V 'L-�jt vovy., very pi-_-ae atraw pale -allow 3 10961 vs ry 7 a r-;' pale etraw pal e Yellow 6 12241 403m_ :31 ight Yahoo greasy, stain 7 1450, eztremal� faint Vqrj pale 76110W 8 1458, qxt-reamel;' faint very pale yellow 9 lV11 I -aala slaw colorod yellow 10 14911 pale straw cfalored palss yellow 11 17121 Sala brownish yellow 12 1730, lel broAiish yellow 24 3Z01 61 very, very pLe straw yellowish greaw stain 25 33611 Was greaky stain 27 34649 'rsryvery s,'130'rav yallovisla graasy stain 28 34891 rex;7, 7ar�, pals straw V,aaay stain 26 35001 714 a n C Sraasy stain 29 350319 straw cc" orod Yellow 29 35181 stxaw co'xTad yellow 30 3.522 Y4110*2dsh graaiw stain 30 =21 yallowish greaW stain 31 36421 a Sao gr3asy stain 31 35481 cane graapy stain 32 35599 zone greasy stain 33 3571, none greasy stain 33 WSW vary pale stra-w -preasyrstain 34 35941 a straw �olorad yellow 34 3B984 pale straw colored yellow 42 42M Q pa -19 straw colored pale yellow 4Z 42831 Dale straw colored pale yellow m 0 'Oil outs is 4 014 - continued - Care z 6 6 7 7 9 9 10 10 11 12 12 19 19 19 19 24 24 25 25 27 27 28 28 28 28 2b 29 29 29 'Rets b 371? Z719 100 low 10963 1232 1232' IXI12K 1447 1450 1458P 14589 14712 147111 149 L'P 14912 1712 1730P 1730B 2725F 27255 2739P 21Z93 3266E 32655 3361? 3361N MV M4H 3489F 3489.E M001.1 35WIT 3503P 3503IN 3518F 351SN Effective Poroses 14, a 8CIII 14, 93 21,1 ?'93 7,83 20,5 plug too sma-I I plus too all 22, "3^, 24,4 7-,7? 6, A3 20,0 20A 16,37 14, 85 29j'0 19,55 18,7 10 0 M. 10 1 701 7; 96' 9,80 10'� 75 105 10 , pit 10,46 9,56 9,44 11,52 10,02 13�74 13, 35 5 Air �I-eMtaabiltk impermaable izpermeable 166 md, 1A.Mperma'a"ble imparmeable 407 md, 3,57 md, 376 md, too soft iinpormeable JM —I, 43raeable 986 Md, 570 Md, 19 md., 13 md, too soft 39 md�. a Md �.zparwea i;j�parmoa-bla imparmalk-ble Im-narmeable LU-)oXmeable imi"rmealbla it` Darmeablq i=--rmeabla iM-Z)a:rM0a'bl-) lass thaz 1. md� 265 Aid'"..-, 70 md., 43 Aid., 35 md, 'Wt nat tested 9 c jo 22,04 7.49 5.34 noa-caleareous 25,6 7,1015 1-3.9 non-calcarsous non -calcareous 7,6 15A not tested not tested 8,24 8AB 4,34 1,86 5.177 --cut Le a i duq 44 42921 pale straw colored pale yellow .- 44 43014 p;��a3 straw colored yellow 50 54410 stray colored Palo yellow Oil Saturation Test Core kn—th Petroleum B'3:' Ivater 14396" trace— -qRA 15t-,7% by volamql positive ha-ex'ds "st with Porosity, Permeability and Cafbona.ts Care z 6 6 7 7 9 9 10 10 11 12 12 19 19 19 19 24 24 25 25 27 27 28 28 28 28 2b 29 29 29 'Rets b 371? Z719 100 low 10963 1232 1232' IXI12K 1447 1450 1458P 14589 14712 147111 149 L'P 14912 1712 1730P 1730B 2725F 27255 2739P 21Z93 3266E 32655 3361? 3361N MV M4H 3489F 3489.E M001.1 35WIT 3503P 3503IN 3518F 351SN Effective Poroses 14, a 8CIII 14, 93 21,1 ?'93 7,83 20,5 plug too sma-I I plus too all 22, "3^, 24,4 7-,7? 6, A3 20,0 20A 16,37 14, 85 29j'0 19,55 18,7 10 0 M. 10 1 701 7; 96' 9,80 10'� 75 105 10 , pit 10,46 9,56 9,44 11,52 10,02 13�74 13, 35 5 Air �I-eMtaabiltk impermaable izpermeable 166 md, 1A.Mperma'a"ble imparmeable 407 md, 3,57 md, 376 md, too soft iinpormeable JM —I, 43raeable 986 Md, 570 Md, 19 md., 13 md, too soft 39 md�. a Md �.zparwea i;j�parmoa-bla imparmalk-ble Im-narmeable LU-)oXmeable imi"rmealbla it` Darmeablq i=--rmeabla iM-Z)a:rM0a'bl-) lass thaz 1. md� 265 Aid'"..-, 70 md., 43 Aid., 35 md, 'Wt nat tested 9 c jo 22,04 7.49 5.34 noa-caleareous 25,6 7,1015 1-3.9 non-calcarsous non -calcareous 7,6 15A not tested not tested 8,24 8AB 4,34 1,86 5.177 The following description of they cores and well cuttings was made after all material was dried. 16 1/.2" surface casing =gas set at, 530 and 11 3/411 was not at 890'. A Widoo electric log eras aua From 83111 to the svXfk ace casing as the Schlumberger instrume3at was not available -at the time,: The quality of the well cuttings tbroughout they tale is year good altbough some saad cont+amiraatior resulted from recirculation, Core and Well Cuttings De scrip aS ora Well cuttings above 751 were not receivid by the Z-iroanks laboratory beat con.- tamin.atiOn of the highest samples rec;a3.aed hare iacdic:tite that, sande are made up of coarse grains of subangular yellow quartz, white and clear quarts. red chart. dark gray and black chert;, also rare green chextA The well geologist reports. 0-11 Elevation --rotary drive bushing 11-62 Sand and gravel 52-56 Claw 55®67 Coarses s"d 67-75 She 75-95&Cla-V steal b- msdiusl light gre'� txace5e of light gra siltetone and white btmtoni.te , rare Iacceram- as prismz 95125 Sandstooa, very light gr.V,. rldirty", ver; fiawa grained to silk, sub= a gulaxe coxitaizxe esti 7. '&hi i8 an- clear guaxtz, 10 Opaque white vol- canic glass shards, Oso dark rook fragmeats, chart., biotite and ocaaeaional yellow quartz,, argill.aceou bea.to ltic cement 1.25135 S3l,tstone and some very Vjae s=,-tstoneo vex; ,sight gr t, coa4r particles in sand and coaly aarti.agso rather ado trace bentonite 135-166 salty clay shale ox a gillaceous siltztonso light grV to me di= light gray® biotite, coal particles rather bardo trace ben o ai tee. 165-195 Clay *bale, medium light gray, to medium dark gray, traces siltstone at told of interval. M i 252" !' KOeti're A p9ro si tv Aix Pe rme�abilC• Gona Conteak-1- D 1s30 If'-66-15 md, 6,57 30 35229 12.; 94 15 rad,:, 30 353& M 20 3,1 md. 6 .',12 30 3.53' 11 � 94 0, 5 md� 31. 3542P Mil ?.9 Rid.. 5.67 31 3542Z 13, 34 20 m4,, 31 354aP 14,,10 2'1 md, 6.114 31 35483 13.10 18.5 Md" 32 3559P M65 32 md� 7.50 32 35591 131,32 24 md� 33 3571l' 11,90 8.5 and; ?Al 33 Z6?3.2' 11138 less than 1 md, 33 3580 12, M Sample ua sul tabl a 11,16 34 3594t' 1.1,10 ivoo enable 1€s : 45 34 35941 10 , 75 Im-Darmeabl e 34 3596P 10,12D impermeable 15,1.0 3B 3B �3(598N 3603 3603 e.�q�10,.4a tested not bImperme�able not tested ��$ �j 36..3 ' The following description of they cores and well cuttings was made after all material was dried. 16 1/.2" surface casing =gas set at, 530 and 11 3/411 was not at 890'. A Widoo electric log eras aua From 83111 to the svXfk ace casing as the Schlumberger instrume3at was not available -at the time,: The quality of the well cuttings tbroughout they tale is year good altbough some saad cont+amiraatior resulted from recirculation, Core and Well Cuttings De scrip aS ora Well cuttings above 751 were not receivid by the Z-iroanks laboratory beat con.- tamin.atiOn of the highest samples rec;a3.aed hare iacdic:tite that, sande are made up of coarse grains of subangular yellow quartz, white and clear quarts. red chart. dark gray and black chert;, also rare green chextA The well geologist reports. 0-11 Elevation --rotary drive bushing 11-62 Sand and gravel 52-56 Claw 55®67 Coarses s"d 67-75 She 75-95&Cla-V steal b- msdiusl light gre'� txace5e of light gra siltetone and white btmtoni.te , rare Iacceram- as prismz 95125 Sandstooa, very light gr.V,. rldirty", ver; fiawa grained to silk, sub= a gulaxe coxitaizxe esti 7. '&hi i8 an- clear guaxtz, 10 Opaque white vol- canic glass shards, Oso dark rook fragmeats, chart., biotite and ocaaeaional yellow quartz,, argill.aceou bea.to ltic cement 1.25135 S3l,tstone and some very Vjae s=,-tstoneo vex; ,sight gr t, coa4r particles in sand and coaly aarti.agso rather ado trace bentonite 135-166 salty clay shale ox a gillaceous siltztonso light grV to me di= light gray® biotite, coal particles rather bardo trace ben o ai tee. 165-195 Clay *bale, medium light gray, to medium dark gray, traces siltstone at told of interval. M .195-235 235-265 265295 255345 345®355 355--365 Core 1 Sandstone,, very light gray to light gray, 00ft, fine gra,iaaed, subangular, 80a whitey and clear quartz, also dar& chatrta coxal particles, biotite, rare volcanic sb=de„ a.rgillaceous-bentoni.tie matrix, Inoce.-ARUs fragment is interval. 205-21.5 Clay steals. medium da. -,4 gray, pea:: tic3.zl.ar r et bass of intea-xal., plus sand: stone as above. laocesramsus 295-255 Siltstone, light gray to amedium Night gray. soft, bia-k ca,r'oon ceoas mart= l lags. Inocer us prisms 27.5-295Clay shale, medium light gray to medium gr -r,, trace si?.ts'tone, eery light gray to light gray sil tstone 3.2-5-335 "off, light greenish grv., lard, d.emase, speckled with tiny particles of black earboaaceoua material, Sandstone, light gray, fine graLaetj 9 quartz. some lark chert, carbon- aceous particles I've Description 365-3859 17� Cuff 719" Sandstone, very light gre�r to light gray,, medium bard„ mragsives fine grained, mostly subangular, a wh i to and clear guar tz, also coal particles, dank chart and a fiery small amount of pyrite azad f'lu'ted opaque white volcanic glass shards. M:-itria is maad.a up of soft light colored benton- itis claq containing an a7unda,ace of brow biotite Dla.tss, Ve-rj slightly calcareous, slip u.rrde t+earmined no shows e ff'ectivs Porosi ty Air Permeabili 3�'° 14� 8 impermeable .27lt 144 93% ism-osrmeable 71191 Interbedded sandstone 85a and clay shale. Sand- stone same as described for iaterval above, Gley shale Is medium light ,gree to medium grW,, zed-iwa hard, 00atains aumexous particles of carbonaceous material and blotite plates, occurs as lamlraa.e a few inches thick in the sandstone, minae are irregular, lenticular and have erratic dips with a slight tendsney toward "swirly" bsddia i.ra spots, �. sra$3.1 po;rtioa of a thick shneliad l:rao-possible Znoce,amus 3.a �arec �focama at 3814, dips ? non.-. calcareousno shotes 0"'115 Clay shale,-,- ,medium light gray,, medium soft* fair cleavage, slightly sil,tye portions of the shale CORtalu multiple small. elongated (amd flat Wall.e,l teas bedding) fragments of medium grab. clan, very rare carbonaceous partings, W71 Limestone, medium gray, medium- bard and argill- aceous, fractures parallel beddinge contains white cry s tal l inet eal, ct to In a vein or a fracture pians, Hicrofossils very rases, Zoete R 7 0 0 4:35-445¢ trace white aragonite -515-525, mollusc shell fragment 415--425, c Aunti of thi o€s Ing ceramus prisms 445-455 Sandstone, very light gray, vast .fira3 grained., subaag lar, 9G`� white and clear gaa.artz, also rocas fragments., dads chert, some volcanic shards„ ar- gillaceous-bentozitic matrix, 555-565 Siltstoua, light gray, bentoni.tic matrix 565--575 Siltstoze., ligaht gray and clay stale, meaium light gray 575--585 Silts nab light gray, beavoniti4 matrix 585-595 Clay obalo,, very light gray to l.igbt gray, silty 595-1605 Si.ltstone and verb* fine saad.stone� considerable amouaat of biotite, bentonitic matrix 605-655 Clay shale, medium light grV 6155-665 °vlay shale, medium l ht grs ' and siltstans, � ,� light may Frith benis - v c matrix 665-731 Clay sbualle. medium gran to medium dark gray, trace Write 6655-695;, light gr silts tons 705-73.5 and 72Z-735,, thick shelled Inoceraaua.s at 675-685 Core 222V uecover 2 731751" 203 0" 10190 Cl,,-gvstona£ medium gray,; .hard.., slightly si.a!a_,. uo cleavage but fractures roughly parallel bedding, very rare light gray bentonitic part- ings, but uniform of texture and color for the, most part, rare vermicular pyritic streaks; � �- calcareous� diD 10 0171t 3entoaite, very light gray, medium soft .e)'-' n irregular frac ure 2111x` Claystone, as above 0024 Bentoaaite, light gray lith slight greer.ish cast 046, Clsystone as above 0110" Bentonite, light greenish gray., medium soft vhe,o dry, fractures easily 434* Claystone, as in first interval of this core kwo microfo€asil,e soeciss abuadant;, 751-845 Clay shale, medium ii Gbt grray to medium gray. trace light gray sil.tstoue 735-795 and 81,57-825 845-890 Clay shale., medium light, gray to medium grAy, rare round, b1a.c1c chart granules .noted at 845, trace siltstoor_e 865-875 690-920 Sandstone. light gray.., fine grained, rather- soft., 95a white and cisar qt2,a-.xtPzn rare rock fragmen;tse chert; pyrite fair?,y:m;ony slightly calcareous ma,triz argillaceoua but not bentonitic- Pus's med um sand grains and raze subroi»�z,��L black chert granules, 10% cls sw a at the bass of the interval. 9940 Clay shale, medium gray; also fairly large amount of ver, fine to fine, light gray sandstone, slightly to moderately calcareous 940-950 Sandstone,, light gray, fine grained, subaagalarA 90% -whi.te and clear quartz;, also dark chzrt and rock fragments, pyrite quite common, srgiilaceous matrix:, 0 s u'-395 Sandstones, light graW and clay shale, medium gray 59.5-545 Gly shale, d ' light to media gray, ' tra.ce si' t stone ,a95-41.5 a d 4:35-445¢ trace white aragonite -515-525, mollusc shell fragment 415--425, c Aunti of thi o€s Ing ceramus prisms 445-455 Sandstone, very light gray, vast .fira3 grained., subaag lar, 9G`� white and clear gaa.artz, also rocas fragments., dads chert, some volcanic shards„ ar- gillaceous-bentozitic matrix, 555-565 Siltstoua, light gray, bentoni.tic matrix 565--575 Siltstoze., ligaht gray and clay stale, meaium light gray 575--585 Silts nab light gray, beavoniti4 matrix 585-595 Clay obalo,, very light gray to l.igbt gray, silty 595-1605 Si.ltstone and verb* fine saad.stone� considerable amouaat of biotite, bentonitic matrix 605-655 Clay shale, medium light grV 6155-665 °vlay shale, medium l ht grs ' and siltstans, � ,� light may Frith benis - v c matrix 665-731 Clay sbualle. medium gran to medium dark gray, trace Write 6655-695;, light gr silts tons 705-73.5 and 72Z-735,, thick shelled Inoceraaua.s at 675-685 Core 222V uecover 2 731751" 203 0" 10190 Cl,,-gvstona£ medium gray,; .hard.., slightly si.a!a_,. uo cleavage but fractures roughly parallel bedding, very rare light gray bentonitic part- ings, but uniform of texture and color for the, most part, rare vermicular pyritic streaks; � �- calcareous� diD 10 0171t 3entoaite, very light gray, medium soft .e)'-' n irregular frac ure 2111x` Claystone, as above 0024 Bentoaaite, light gray lith slight greer.ish cast 046, Clsystone as above 0110" Bentonite, light greenish gray., medium soft vhe,o dry, fractures easily 434* Claystone, as in first interval of this core kwo microfo€asil,e soeciss abuadant;, 751-845 Clay shale, medium ii Gbt grray to medium gray. trace light gray sil.tstoue 735-795 and 81,57-825 845-890 Clay shale., medium light, gray to medium grAy, rare round, b1a.c1c chart granules .noted at 845, trace siltstoor_e 865-875 690-920 Sandstone. light gray.., fine grained, rather- soft., 95a white and cisar qt2,a-.xtPzn rare rock fragmen;tse chert; pyrite fair?,y:m;ony slightly calcareous ma,triz argillaceoua but not bentonitic- Pus's med um sand grains and raze subroi»�z,��L black chert granules, 10% cls sw a at the bass of the interval. 9940 Clay shale, medium gray; also fairly large amount of ver, fine to fine, light gray sandstone, slightly to moderately calcareous 940-950 Sandstone,, light gray, fine grained, subaagalarA 90% -whi.te and clear quartz;, also dark chzrt and rock fragments, pyrite quite common, srgiilaceous matrix:, 0 i . �r coares roundled dark chert grai-s 'im aa ned igh gry gh'; Zy" tra-co Biltstone 9?ra-S'Sia K� cleavage A P,-- a' i� m!3I"J-VI2 Ii-SAt, grzy siltstoue. about 101'j& coal 9rV With Streakg Of Very li#* r mssfva in partr, mod -lux grained, -w!J--*,a ancloar quartz, also soma dark r t, d's -I' a coal grainso grafi aa su:baugular,, gblly to vory calcareous cement-,, Vezy' lig*, e,�`ay itrees-ke IA tbe rock represant lamijaaa in WhIl -r-h tba e"2 carocus material is coacsatrated� yarsp t�dr- partings of �'..ack carbonaceous nt�:,,tar!E-I- Slict9usides st? 170 aad 300'--'^It.!�d. in I -xi tpx-ir I'100-1101". :Qip of the bedj lz '�vhe -I ,vi t 7y -- f 4 ho s o s I i ek- an s i d s I s uD t o d i 'Z 0 aver-Agiag ac -out 6 ma-trix 0111, of �Rama abcva6- �Ieb'olas and grawalao blaok char, -and whi.1413 qUal`sZ a of iZht24;- larger proportion of the fonner, • 'I ta aie well rotudad, rangs in size from 1/6 to imch -'a ""mm .'Motar' Conatituants of th'iz can - E a0.71s:5 ars 'IrS 1,9911 sorted with two m=im-aie,, x n,edlvz 2 -and a pell-j-Uss of the size meationed -!--. Q a -T e , vav;' 14ttle of inUrmsdiate vades,, r. j -. rat:3rLal . Faint odar, Vez,- j;ale and, pa -12.9 yallow rasidaa from 10 71 f a 3, V's Air S:")OUata "'Unteat 9 1 ? iwpormaabla pps 7,33 laoarmaable maddi�m taaiaad, nabbles aad some a J" raumdad, oome oal th aadw' fflat-Tix Yea.Z' 'wj d -3.1 Macke -alaty cleavage ight grayo me i° soft, e37' At about 115rV Vne zln�t �11-roug�a a two Incl, intarval is jx-or�ag- ,!Et•Ad !.K laia:Juaaa pa.nallel the baddia- with whits 9 1175-1185 MY shalm AMUMQm7 to madly dark gxqq Mace Vandstona and clgv Ma-- � TOW4 I 16,5 - I 19 '5 wbOw and vaY7 bantanitif blay ohale, vary light gray, also clay Rals, xOdIwO 119H MY, traca Yellawlab grgr clay iranstonga 096-12W MY Mail, light olive gram About A 09 ssnpls in ambvitreous black co 'l0 orace light gray bentanite, W05-1215 3anQ,-tx--n9, light gzar, wadium graiasdp rathar solt ,-,Pd friable,, salt eud MY.. 301 white and 019at gam, rtsp balance is dart abort and nook fa ._3z-"'ta, - oa'l: PSY1101an, Witz Ohniky materwal. raze biatite, Aloe a 013a 0! COU sac", xae.-"1t;"a dark gra claw 5-WIS Wr" 21! 03 Saahstaaa, 119bt graye madpately soft to yoxy SUET aml NOW,, faaa -to mediam grained. sab- MAKSW 60-�� �-Oit--? Clear isartz: balance 19 mostly damn gray chart and some white chart (1), Awn its A ApRaNy calcite or axagoaife (prismatic :Ryst of the Clay shala Q non- GANZ down OW: 9' 1101 zrays awliaceous, similar _�j rlha�ls ofl&bho Interval WaKately ahove, costaisa Miante Kown MOW plates. modiuy ligM gTayr very baxd aaf! t�!Atp probably has a Mice= rather Kan calzarsonz canzat, 7arj Me to fine graineW Mnotly gyartso a few deld mWerale Waludiag S 'UVIS WOMO; UP 10 Warofeasils absont. 2WOMe. vary light 'T visa Blight greenish, last, soft ead crambly slaz dzy� sualls to 000nnut WOO Wan moislaned vith water; ccntaMa 0iotits Plal"Os" 4010" Quintana, madMa light grays similar to sand KOM in lossat Warval of Core 4 immediately DOW W in Soft= q0to hentoultia and coal - Was war. MUM MY Ondstane grades to WaY Man dip 50 3""3 Cla�-- F -k -'also sodium Kdht lxayo fair Tedium eof Q coatains atreaks of light g mcgev Watoulte; dip Zo BOW1115001 MY bastanific clay, very light 9101, POOr WavagO, subcoac"Mal fractare, Kotlta Wates abundant 7,3 ON U , V On maditm arax to wadiun daxk Sqg7p fahr Kawage, sligbOyboaloNY, non_cajcare6*s Mrofoasily WSW. 1175-1185 MY shalm AMUMQm7 to madly dark gxqq Mace Vandstona and clgv Ma-- � TOW4 I 16,5 - I 19 '5 wbOw and vaY7 bantanitif blay ohale, vary light gray, also clay Rals, xOdIwO 119H MY, traca Yellawlab grgr clay iranstonga 096-12W MY Mail, light olive gram About A 09 ssnpls in ambvitreous black co 'l0 orace light gray bentanite, W05-1215 3anQ,-tx--n9, light gzar, wadium graiasdp rathar solt ,-,Pd friable,, salt eud MY.. 301 white and 019at gam, rtsp balance is dart abort and nook fa ._3z-"'ta, - oa'l: PSY1101an, Witz Ohniky materwal. raze biatite, Aloe a 013a 0! COU sac", xae.-"1t;"a dark gra claw 5-WIS Wr" 21! 03 Saahstaaa, 119bt graye madpately soft to yoxy SUET aml NOW,, faaa -to mediam grained. sab- MAKSW 60-�� �-Oit--? Clear isartz: balance 19 mostly damn gray chart and some white chart (1), acca-SIOD'al pa;,tirigs ;_% tad thia !3_Dinae wi th abunadaxt lac CODI pa:ticlaa alightly tt modex_-talW oaAsaus, 1713oting adwr and sligh-t y � - :-) 11 o 4.3%:'e" e a stain in evaporating d, -j sh from 122.41 . - N, J�" f e 0 1; i V -a Air Cnarbonate Coateat De-ro t3h Iorwd tv 1232 _25 Df r- - plud iTi,,igular 11232PI too amall 4)7 Md" 7, 4%; 1 .,2.17 p tC 0 35*17 md, Di I;ch MICrofossils ab2ant. 1292is-1248 Saae-stone as a-bove 124'.8-1278 10"Liv sbale, nodi um o!iw) gray, uP to 20-% sand 1278-1288 'WIP-y shala" iv I, 'Ieditw 1-g1bt olivs gray to 9.ed.ium Olive Gr v and mandstoaa, 109 11,9h -t graY, 'i.aa to ned-Aum grai-tied, soft„ "Balt �tmd rapper", tr,- 00.A and very iiga2t g -ay 'nen -Io n i -, -a 12FS_31% 'ane'stOn90 1-�4bt 01 'a grw,, vert fine to fine grained a --d coa-glomerata wt;th rounded black aarl.,,c gray aarl red --_.'hert gra=jeo, $andstoas is sljght to moderately Calcareous ulth si deri tic m- 71ty trace of bqr4to,-,Atjc cmc slzal and trace coal '1 4 130.8-132 5 Siltztone, modilan'. Olive gra.7, -.!A,Calcaxecus, t;.Mco very fin -2 Sand- stone and trace troa3to.qa 13ze-1333 conelomerat9c wry f`.aa d.-T4rk a!Uva gyaV 'clay shale, chart gran'ulns, traco co -al 1328-IZ43 Clay Sh'aleo maelivm 1"4gght Olive gran' 1340-1.35t-3 Bentoaits' VoTir light" gr'V with Slight gxeenish ti�'ga' also Clay Shale, C;I medi,wp light olive Va7 i&I'18-1393 ClPY Shah., Rladitlm =07ny as medium olive grsaj-f, '.cace baa t-onita 135s-- 1378, trace tra.,:3 medi= grained 1338-1393 -1-11$ Clay shale,-, modii= o2,`vc aal medi= daxk gray, ail.so considerabla aMOU--It Of sa:!'dztOna, light gra to pale yeallovieb, broun with 3ideritic matr*.xo "salt Fjad -oapper", 8,'jlartz' fin-, to med'ilum grained, 14le-1-4 3 'Clay zhala,, medIwm JJ_'Ght oljvq 5race coal Core an—Ith ie—q-0NAZZ-V 7 5":?' Saa:_`stcae, light grzy., sof-14 and v8rY TfiaO to c;3arsa grained, grain size grad- uallky bec?jinse noarser witi) Die t "Balt and PWPDOT" parti-c"Ilayly i.a the 1'ar-a?, size -sage wi ti whito aad 0.1aar quart:3 aaddaxk ggr�Vr charto soaO argillaceous material, occasiona-31, Vlsck plate -Im-nLressioas,, Don-calcareoug Coag'2.omerate, inadiwr, li�.-,ht gray, 1,,.3ry coarse ez,,_ and graaaxlesI _pl -as a f_qb ewual pebbles,, in-,- d�3-pth:, rather soft A -ad frJabla,, coa!;'f.S.ts almosl; entirely of 50,10 light quaxtf and '�Lark chart sabrounded, a_a'.Ilacsonu� to -127 3I4`,t],Y 011careo,�.c.p.-aieat, cor,--; ZA o::Cailfflat of glrlad,��d be�.diing from gore 8 9 14 12 Den th Fecover r at time base to fine at the top, Faint odor, vanr vary pale cut and very pale yellow residue from 141501, :affective .fir Carbonate Content JDOnth Forositj Permeability b Weight 1447 3 3?6 mdr 5.3 1450 24, 4 too soft non -calcareous M crofossils abeent. 1457-14691 31 4" Sandstone,, light gray to medium light grays medium hard, grains coarse to granule, subrounded to sub- angular 504la white and clear quartz 50% dark gray chart, very calcareous cement in part; dip 40. Faint to fair odor very pale cut and vera* pale yellow residua from 1.458. effective Air Carbonate Content Depth Porosity Permeability `v by Weight 1458P 7, impermeable .3506, 1458B 6048 a Microfossils absent, lnocerammus prisms in microfossil cuts 1459--14751 3e on V9" Sandstone, as above coarse 'to very coarse grained„ rare granules; non -calcareous cement. Faint to fair odor, sale straw colored cut, yellow residue from 1471' Effective Air Carbonate Content Death Forosit Permeability --.g-bWeight --.g-bv 1471F M00/. 46e --j d 7000 1471Y 20� 1 570 md, 013" Coal, shiny black, platy fracture •icrofossil.s absent. 1475-14951 20, on 5'110" Clay abal s, medium gray to dark gray, medium harde poor cleavage,, occasional lighter colored silty streaks, dark color of portions of this interval are dua to abundance of finely disseminated car- bonaceous materi&ID occasioaal black plant impressions, 290Fe 6endstona, light gray, as described in lowest internal of this core, rare plana. impressions, Slight petroliferous odor, W 4" Clan* shale as in first interval of this core 938`1 Sandstorzeo light graye hard, massive, irregular fracturee medium grained, "salt and pepper" with light quartz and dark chert, other minerals rare, slightly calcareous cement; dip undetermined, Faint to fair odors pale straw colored out and pale yellow residue from 14914 12 Core I3 Rem Effective Air Carbonates Content .C�ax —th Kp ro i t Pesrmeabili ty weight 14911D 16 � 3 19 spade M9% 1491 3 1465 13 rads Microfossils absent. Di tch 14951525 Sandstones light gray to medium light gray. fine grained, very porous, mostly white and clsar quartz, rare chert granules. non -calcareous, conglomeratic from 15451515 with very coarse sand and granules of black chert, yellow charts white quarts, subangular to rounded 15251535 Bentonitic clay shale, very light gray and white b+entoaits 15351545 Sandstone, light gray. five grained, white and clear quarts, slightly calcareous. 50 of this sam-ole, is coal 1545-1555 clay shales dark gray and coal. 1555-x1585 Coals dull to subvitreous blacks fl.ackys some dark gray siltstone and trace of medium grained dans gray sandstone] 15551565, trace light gray fine grained sandstone and medium dark gray cley shale 15751585 1585-1645 Sandstones light gray, very fine to very coarse, hep v'bIte and clear quartz., dark gray chert,, subangular to subrounde3ds the yaz est grains are the roundest, coal particles* non calcareous, very soft, friable mad porous, trace coal 16051615, 1625-1635 16451655 Sandstone as above. 24% dull to subvitresous black coal. and 15% white bare to nite o trace medium gray clay shales 1655®1665 Clay shales, medium dark graV, trace sandstone 1665-1705 Sandstone© light grays fine to vary coarses flues mostly .shite quartz, up to 50% dank chert in sample 16851695 Core 22pth Recover-* 11 1711-17180 79 0", 113" Sandstone and conglomerate, light gray, medium soft sand friable,,. medium grained, subangular, c0% white and clear quartzo some mica, coal particles aad dark chert, sandstone contains angular fragments of shiny black coal up to two inches in diameter, rare rounded black chert ' pebbles and angular medium gray clay fragments, argillaceous cement; non -calcareous PM t Bf#ectives Porosilw Air Permeability 1712 2900 too soft r Kerosene -like odor, yellow cut and brownish yellow residue from 1712' , 401111 Claw :shale, dare gray, medium hard,, good cleavage dark color apparently due to presence of finely disseminated carbonaceous materials also minute flakes of mica,(, some pyrite„ vertical fractureo conta Las rare thin :laminae of pale yellowish brown clay ronstoueso vary rare fish 'bone fragments.- non - calcareous, sliokesrsides at the base of this in- terval,, dip of 73eds dust above slickesnsides is, 250n dip at top of interval is, 80. 13 0 Cores - th Recover -- - Q`' 10" Sandstone, light gray, similar to first interval of this core, contains only as occasional black chert pebble; non- cal ca,.reous-, dip 300petroli- ferous odor t i-20fosails absent--'noceramut in microfossil cut. Ditch 1705-1740 Sandstone, rine to coarse® also f coal. Core Kurth Recovery 12 1723-17384 11Q On Sandstone, light gray, hard, massive, fine to rare medium grained, subrou€zdsd to angular, 95� white anti clear quartz, some mica, coni and dark charts rock: tori slight vellovish stain in spotsa non -calcareous; dip 10 Effective -Porosit-v Air Permeability 1730P 19 J !►5� 39 md, 1730H 187 8 mdo Kerosanemlike odor, yellow cut and brownish yellow residue :from 1730",, Hicrolossil.s absont-la_oceramus in microfossil cut. D1 tch 1738-1760 Sandstone, medium li&t gray, fine to coarse, very soft, 95� white and clear quartz, biotite present, coal particles,, non -calcareous, Trace coal and dark gray clay shale 171770 :Siltstone, medium light gray, and sandstone, light gray, contains biotite, moderately to very calcareous 1770--1790 No sample 1790-1830 Clay Male, medium light gray, trace sandstone 1800-1810, Trace coal 18710- 1820 1830-1840 Clay shale, medium light gray with approximately 40% very calcareous sand- andstone stone 1840®1850 Sandstone, medium light gray, fixes wined„ porosis, vez7 sort, mostly white and clear quartz, some chart and biotite,a grains subroundad to subangular,, slightly calcareous Core Deu h AecoveEZ 13 1856-18770 104 061 3104 Sandstone, light gray, medium soft, excellent cleavage parallel betiding, rine grained, sub- angular, 701 white .and clear cluaa,rts, biotite and chlorits common, dark exert and rock fragments also present; slightly calcareous; dip 10 or less 710" Saadotole arz.i silts�oone, light gray, of same comm po si tins as above, medium soft, has no cleavage. This portion Of the recovery is fractured: into fragments averaging about two inches in diameter,, slighter calcareous Microfassils absent, RM 0 Core d :Recovery 14 1677=1897+ 101 0" Siltstosae and, sandstone, lige gray,, Fairly good cleavage in part, sand is very Fine grainedo 50� quartz, biotite ( and other mica) is extremely ablj,dan tE. also +coal rarti Iles present, some dark carbonaceous partings,, slightly calcareous; dip 10 ,Micro.fossils absent. Ditch 1900-1970 Clay shale, medium light gray, micaceous, contains traces of sandstone and siltstone throughout 1970®1980 Sandstone, medium light gray, fine to medium grained., angular to subangulato 85% white and clear quartz, 15% dark gray to black chert ("salt and copper% very small amo mt of wallow qua,.,'U'2,, Trace medium gray clay shale 1980-2040 Clay shales medium light grays trace ver, fine sandstone ne aad siltstone 2000-20400 sandstone is slightly to moderately calcareous in interval 2010-2020 20403=2050 Clay shale, medium light gray to medium gray and about 40,- sandstone. ligb% gra ye, 'pert fine to fine grained, contains occasional bl.(� ti to and coal particless slightly calcareous. Trace beatcuite. vera, 'light gray iii 4,b. biotite plates 3D5O-21.80 Clair shales medium gray, Trace sandstone 2130-2150. 2160-2180. Trace silt - stone 2O6Om2O7Ot) 2080-2130 (moderately calcareous 211.0-2130), 2150-2160. Trace bentonitra or beintonitic clay, l�,�5 gray 2080-2090, 2110=2120 (10), 2150-2160. Trace coal 20,70-2080 CoreDepthcoger- 15 2185=-2200° 100 0" Clay shale, medium gray, Fair to good cleaavageo me3ium hard, subcon.choldal fracture, very rare lighter colored silty laminae which show small scale cross bedding, an occasional brown fish fragment noted; aeon-cal.careous� dip 1/2P Microfossil.s absent Ditch 2200-2250 Clasp shales medium gray. Trace siltstone a ad veal' fine saad.stone 2200®2220,0 223Ov229ti 2250-29:00 Clay shale,, medium gray,, to medium dark gray,, chin: of inoceramus -prisms 2290-2300, Trace very fina saudston.e 230092310, 2fix-2350. 23603®2370. 5; slightly calcareous siltstone contains Moth to .2320-2330, trace siltstone 2330-2350, Trace light gray clay shale 23903-24030+ 2400®2420 Silty clay sh.ieo mediwo light gray to medin-m gray 2420-2950 Silt shalgfl medium light grapy., n.on-calcareouse also medium gray clay shale .2450®2920 Clay shale, medium gray, trace silt shale 2460-2499 Clay shah, medium gray to medium dark gray 15 0 0 Co re D -t Recoverr 16 2499-25191 .fie On C-3ay shOIO. medium -0,,TaY, good cleavage, medium hard, thlin be -dad with light colored silty laminae. Valecypod fragments noted at 25064. 25103, 251110 and 25151, Three of these are a thin shelled Inocaramur, -probably Inoceragius labs of Zone F. own fia Brh bone frag-cents raze;—noi--caleareous; dip variable --140 is upper portion of core,, grad - u -3117 LIcraaalag to 43'D at 25131 where a steep angled zl!-ckansida is noted,, Dip decreases to 90 at the baiie of the core,, Ditch A -,' icrofoas-.1a absent 2520-3610 C"IaY shale, madiixz g:nXr, 1101 madiWa light grWf silt shale,: 'nodarately ca"'- ca..reous aad a ehiank of luoceramu-s pr;,sms -at 25 -0, Trace very calcareous silt shale 264025.50, aaa-cal careo,,,%s silt shaia, also trace aragonite and trace coal at 2600-2b'jo 2610-26-�* Silt shale, light gray, also about 4Upo clay sh2let, traca coal Core Dept Rt'coy2a 17 2620-26391 10, 014 Cl V Oba.10, medium gray,, good cleavage, medium bard. ap- proximately 10% medium light gray silt - stone ra-Presanted by very thin laminae and lenses in '4)."e Shale. Inocaramas shell fragment noted at 26381 . F.sh fragments very rare; Uon- calcareous,*, dip less than- 10 141crofosj---.ls absent 9639-2659, 19, on Clay shaas zbo-v-9 but with approximately 15% 31110,12t"Ia to: -i:aor to good cleavageD soiaa Ab- couchoi -portions of the lowest eight feet of 'Ule core ova good poker chip cleavage and I is sligh-^aIy Better than the rest of the co. -9, Inocamaivi found at, 26491 and 26551- shale is non-cea-a-Veous; dip less thaxi. in - Mic.-Ofos-3"As absent - Ditch 2E60 -2670 Clay shale, medium gray, &race silt ahaleo chunks of j_noce;amus prisms 2670-26,90 Clay steals, medium grA;r to wadi um da.rk grWyro trace light gray clay shal e, trace sil"A'Ostone 2680-26-90 Clair shala,, medium grap, 20% of samp].e'is light gray siltstona" moderate'y P. calcareotts 2690-2700 Clay shale, medium grN.!. 'I"Tace fiao graiaod slightly Calcareous sandstone. trace ironstone 2600-2730 Clay shale, medium gra�r and dark- gray, 25j"; sanistone, light gray, micaceous ("Idirity"), slightly C,alcareo�tz In Core D2R=th Lat—covna 19 2723-27431) 191 0,61 Intarbedded. sandstone 9215 and clay shale Sandstone is light gray, bard, 'very fine to Pedium grained, stfoangular, 85% white and clear quartz, 101,t dark chert and reek fragments aud approximately 5% fairly large biotite, plates speckled throughout. The clay shale is medium gray to medium dark gray,, hard, interbadded in thin lam..nae Ath the sandstone. In a -oortion of the .,ore the sajad wad clay ahow beautifully graded beds:,-, each cycle aboat two inches thick; sandstoaa is nn,%derately to very calcareoust, carbonate ca-An4ant <nn.t 27391 is 15 ,4; -,)y weight; dip IV; no slows Bffective Air Carbonate Content a -Forosit-v Permeability Z2 by weirAt 2725 10, Z1J; imermeable 7:6� 2725K 9053 2739P 10.70 15A 27399 9.62 .A.1crofosails abseat Ditch 2743.--2760 Sandstone, light gray, fine with some medium grains, subangular, GO. white 2860-2910 SiltstonO or silt shako medium lighZ grNi,, sqall amount of white vein calcite or aragonite, Trace irary �!-glht gray 'jentonitic clay 2890-29OQ. Rare lnocera=s prismi 2870-28,90, 2900-20,10. — - W 2910-2930 Clay shale, medim &ray and some silt s-h-alo 17 and clear quart2z balance mostly da is chart, :nal fragments and biotite, moderately to very calleareo-as, Alzlci zome ela;r shale, medium dark gray 2760-2770 Cl -%v shale, medium gray to medium darkFTV-, —Pad 1 t sandstone as above 2770:2780 01V shale,. medium gray approzimat rQy .30% of sample is light gray sand stone, fine grained and sill, ,. only very calcareous 2780-2S-10 Clay shag, mediwn gragy to madiam. dark gr -v,,, -alightig silty 2790-2800 2810-Z320 3ea-tonite, white and clAy shale, m-adium dark- grav 2820-2330 Clay shale, medium gray, very sma"U. amo-,=t of whits aragoaite 2830-2340 Clay shal-z, medium da-k gr-V, wblt:� bealonite '!Lore DeD thEAMYiRa e �UM 20 2840-2-8601 7,N 0 ts QlaQr saale, m-adium grtq, haxd, fair to good cleava&-is ocacaaional va7 light, gray be mini oaxtiag,s=pro iucAes of bentonite at the very top of "he interi7a)., ligght ;gray rather hard whes circ , contains zomaxoas of brow biota ea About 1 feet from the 'bottom of the interval is o-11' light bluish gray bentonite, laced throughout Ath Veins of prismatic whits aragonits or cUe-�'J;e; dip 20 a)bseat, 2860-2910 SiltstonO or silt shako medium lighZ grNi,, sqall amount of white vein calcite or aragonite, Trace irary �!-glht gray 'jentonitic clay 2890-29OQ. Rare lnocera=s prismi 2870-28,90, 2900-20,10. — - W 2910-2930 Clay shale, medim &ray and some silt s-h-alo 17 • 0 Di tch 2930-2840 Sandstone, light gray, fine grained., subangular to subrounded, 85% white and clear guartz,'also dark chart® very calcareous 2940-2950 Clair shale 40;, medium dark grey and siltstone 410,00�', medium light gray, balance is light grey very calcareous sandstone +with trace of bluish gray clay shale Core iiRMOUX 21 2954429740 15a 0" 540" Siltstone 90p, very arginaceous and silty clear shale. Color of this interval varies from light gray to medium gray. TU central portion shows an excellsat Pattern of slump or "swirly" bedding. One impression of a small p®lscypod at the very top of the interval. Siltstone is slightly calcareous. 1004` Clay shale, medium grayo bard, fair cleavage interbedded Ath approximately 6irregular laminae and lenses of medium light gray silt - store, rare carbonac+sous xrrw ;ments4 beds very nearly flat -lying; a small, unidentified pelecypod at 29620, Microfossils vexy rare, Inoceramus prisms in microfossil cuts 2970-3000 Sandstone, medium light grayo very fine grained and siltstone, norms calcareous, also some medium ,gray clay shale. lnoceramus fragments and prisms 29701-2930, 2990-3000 3000-3040 Siltstoneo medium, light olive gray and up to 50% silty clay shale 3040=3050 Clay shale, medium gray, silty ant small amount silt shale Core p9Dth Recovsa ► 22 3051-30700 50 0" Siltstone and claystone, all gradations between these tyjje� but with a predominance of silt, medium l i &ht gray to medium grayo hard, irregular fracture, micaceous, occasional dark carbonaceous fragments, fractured Iraoceramus imbedded verti- cally through the cors about a foot from the bottom of the recovered interval; non --calcareous-, beds approximately flat -lying„ Di tCh icrofo ssil s very rare, 3070-3090 Saudstoneo light gray, rather soft® flue grained, subangular to subroundedo 90 white and clear quarts, balance is mostly dark chert, biotite fairly common, com calcareouso very rare ca prisms. Tra: a medius gray clay shale 3090-3100 Sandstone and siltatona 3100-3120 No sample 3120-3130 Siltstones medium light gray, trace silky limestone, medium dark gray 18 • Ditch 3130-3150 Sandstone, light gray, fine grained, 9oi". white chart, rock and coal particles, biotite fairly careous, very rare Inoc prisms 3150-3160 Siltstone, medium light gray, Aon -calcareous. GRore ecavery. and clear quartza also dark common. veryr slightly cal= Trace medium gray clay shale, 23 3169°-3186' ()0 on So recovery Ditch 3184-3200 Sandstone, light gray. very firs to silty, non calcareous, Trace silt/ clay shale, Inoceramus prisms fairly common 3184--3190, 3200-3220 Siltstone, medium light gray, biotite quite common 3220-3230 Sandstone, light gray, so Pt. ,grains subangular to acsbrounded, 90 white and clear quarts, balance is dark chert and coal particles, biotite not so common, non -calcareous 3230-3240 Clay shale, medium dark gray, 44`j*' medium light gray siltavone 3240-3260 Sandstone and siltatonae sandstone is moderately calcareous, some clay shale, one chunk of Inoceremus prisms 3250-3260 Core 2ecoveaZ 24 3261-32811 193 On "06" Interbedded sandstone 60%p si].tstone 25% and clay shale 15%, The sandstone is light fay. bard. between fine and medium grained,, 60,4 white and clear quartz, balance is mostly dark chart and coal pa,rti.cles, c,aioritoid and glaucophaae noted it microfossil sa=lea very calcareous cement. Siltstone is similar to the sandstone but is medium light gray. Clay shale is medium darts grV,, hard, good cleavage. Sandstone contains rare gra* i.ronstoris nodules, also in certain sec® tions contains rube small fragments of the clay shale lying parallel the bedding, coaly- carbon-aceous partings present; moderately to very calcareous-, dip low but =,pith some indication of cross bedding with dips in the Siltstone up to 270- faint petroliferous odor, very very pale cut and yellowish greasy stain in evaporating dish ftoms 326W -Wiffec-:,ive Air Rwnh Porosity Fermeability 3256F 7096,4 impermeable 3265' 9,80 €f l.VG" Clay shale, silt shale aad all gradations. thereof, very thin beds. C=lay shale is medium gray and silt shale is me4i.um light gray, fair cleavage, moderately hard; moderately to vary calcareous; dip 1/20 Microfossils absents 1Ss 3360-3370 Sandstone, light gray, fine grained. subangular to subroun.ded, 85% white and clear quartz, balance is dark chert, carbonaceous particles, biotite quite common 3370-3380 No sample 3380-3390 Clay shale, medium light gray, very rare chips of coral. 3390-3400 Sandstone,, light gray and siltstone, clay shale, medium light gray 20&O 84003410 Siltstonea medium light gray, vary slightly ca,lcareous� Trace very fine sandstone and clay shale 341073420 go sample . 3420-3430 Sfltstone and trace of silty claws shale Gore Ilenth Iiec 26 3435-34854 Siltstone and silt shale,, medium light gray, hard, fair cleavage parallel the bedding, occasional streaks of madiusr, dark: groy clay shale and of very fine sandstone, catbonaceons partings, rare light yellowish gray cl-ay ironstone nodules; slightly to moilcalcareous; slip lo, irregul.arlLies of some of the meds suggest ffinall scale local deformation at, time of dapositioa by slumping and/or current action- no shows Microfossilsa absent Ili tch 3280--3340 Clay shale, medium dark gray, one chunk Inoceramus prisms 3290 -Mo, Trace to 10% siltstone 3310-3340. C—anth Bec 25 334233620 198 00 310" Clay sizl.ee, medium dark grays medium hard, fair cleavage, some subconchoidal fracture, very slightly micaceous, rare carbonaceous fragments, 5010" Silt stone and silty class shale, medium light gray. hard. rare slightly sandy streaks. in part the siltstone is lenticular is the silty clay sba,l.e. .rare carbonaceous partings; beds approximatel;- flat lying. a six inch interval at the contact of tha silt and saada. ; ,,,? with rare, small rounded black chert pebbles, 10020 Sandstone, light gray, siltye, hard, tight, massive, fine grained, subrounded to subangular, 9ela white and clear quartz, balance mostly dark chart and rare coal particiss plus mica.. unidentified pelecypeds (two types) up to an inch in diameter preserv9d as brownish coated casts at 3356. 3360 and 3362; non-cal.carsous- faint odore no cut, greasy stein in evaporating dish at 3361, Affective Air A2 —th Porosi Permeability 3361P 1075 impermeable 3361H 10.54 Iii ch Two microfosails species common 3360-3370 Sandstone, light gray, fine grained. subangular to subroun.ded, 85% white and clear quartz, balance is dark chert, carbonaceous particles, biotite quite common 3370-3380 No sample 3380-3390 Clay shale, medium light gray, very rare chips of coral. 3390-3400 Sandstone,, light gray and siltstone, clay shale, medium light gray 20&O 84003410 Siltstonea medium light gray, vary slightly ca,lcareous� Trace very fine sandstone and clay shale 341073420 go sample . 3420-3430 Sfltstone and trace of silty claws shale Gore Ilenth Iiec 26 3435-34854 Siltstone and silt shale,, medium light gray, hard, fair cleavage parallel the bedding, occasional streaks of madiusr, dark: groy clay shale and of very fine sandstone, catbonaceons partings, rare light yellowish gray cl-ay ironstone nodules; slightly to moilcalcareous; slip lo, irregul.arlLies of some of the meds suggest ffinall scale local deformation at, time of dapositioa by slumping and/or current action- no shows Microfossilsa absent • i 27 3455--34660 ill on 7101, Siltstone as described in core immediately above, rare laminae of medium dark gray slightly car- bonaceous clay shale; silt grades downward into, 3397, Sandstone, light gray, massive, hard, irregular fracture, very fine to fine grained, 85p white and clear quarts, balance is dark chert, mica and coaly partiales4 Carbonate content at 3464 is 8060 by weight-, dip Zoe no irregular bedding; fair petroliferous odor, very very pale cut and yellowish greasy stain in evaporating dish at 34641 Bff'ective Air Carbonate Content Dept Porositv Permeab1,06 by y we t 3464P 10.5 impermeable 8,24% 34641 10.46 n 0134 Clay shale, medium darrk gray, hard, fair cleavage., numerous carbonaceous and miye-aceous particles Microfossils absent, Ditch 34f6•-3485 Sandstone,, light gray, fine grained, .grains subangular to subrounded, 85 white and clear quarte, balance is dark chert, coal particles and mica,, non -calcareous, probably has carbonaceous partings, Trace ironstone 3480-M5. Cora PgPth Recovery 28 3485-3502, 174 Cn Sandstone, light gray to medium light gray, silty, hard, massive, tight, fine grained, subangular to subrounded, 85% white and clear quarte. balarxce Is dare chert and coal particles, mica is fairly common, argillaceous ma,triae very rare brownish gray clay ironstone nodules in the lowest three fesat of the core-, carbonate content is 8,18 by weight at 3489 and 4,34 at 3500-, beds approxi- mately flat -lying; faint odor, very very pale cut and greasy stain from 34894 and vera► faint odor no out, greasy stain from 3500 Effective Air Carbonate Content Death Pow Permeability haIM weight W911 g..56% impermeable 8,18% M9bi 9,44 at 3500P 11.52 4.34 3.50ON 1M2 less Haan. 1 md, Hicrofo,sells absent. 29 3502-3519, 179 0" Sandst=e, light gray, medium hard, breaks parallel bedding, fine to medium grained, sub- angular to subrounded (mostly subangular), 85io white and clear quartz, balance is mostly 'black coal -particles and irk gray chert, This sand - 21 iisimarx stone is sligk:tly softer and more porous than that above, carbonate content 1,86% by weight at 3503 and -5.77,1 at ;518; bedding poorly defined but probably koproximately flat -lying; fair to good sour crude odor, straw colored cut and yellow residue from. 35031 and. 35181, Wfe:-Alve Air Carbonate Content Ile th 'o JX4 ', 1 eTst7e�ibil ty a b :A kat 35OW 15.14 265 zd� 1,8 =w 15,15 70 and. 35181' 13a74 43 md, 5,77 3518N 13.35 35 md@ Ricrofc ssils absent. 30 3519•-353.5 164 on Saadstozaso light gray essentially the same as that in sore 29 immediately above but is very fine to fine grained and is slightly harder and tighter particularly toward the 'base of the in- terval; carbonate content is 6,57` by weight at 35S? and a,12� at Lh532o meds approximately flat - lying,, no odor or cut but a yellowish greasy stain in evaporating dash at 352:2 and 3532 Effective Air Carbonate Content -Aorositv by wed t 3522' 1.19G5da 15 md., 35221 12;, 94 15 std, 3532' 1220 3„1 md, 6,12 3532N :11,94 0,,5 md, Microfossil.a 'Lbssnt, 31 3535-35550 239 013 Sandstone., lig-,ht gTj-V, hard, massive, irregular fracture approximately at right angles to side of cores fine grained, subangular to su'brounded. 9070 White and clear quarte. balance is dark chert. coal particles, rare mica and rare chalky white weathered chart pay° Eicl.: sb a fe=s, laminas with a large;- proportion of daft minerals; carbora.te coatent Is 5,67% by weight at 3542 and 6.10 at 3548, belling obscure but beds probably flat® lying; no odor or cat but, a greasy fila as residue • in. evapo � rlt l ug dish. at 3542 and 354-8. Ax-fectil e r arboaate Content DgR Porosis Parmeabilly bre we ht �. 354 L3, ll 29 md, 3542 13:, 34 .203 md, 35482 4,. 10 27 md,, 6,14 3548.E 3� lC 18"6 and Microfoss:ills absent, 22 Core 32 33 34 math pec®via -, 3555-35671 on Sandstone, light gray to medium light gray. hard, massive, tighter than core above, very fine to fine grained, grains 3100angula.r to subrouuded, constituents as in core above. 8516 quartz, rare, dark carbonacsous-micaceous -Oa,rtings, very rare slightly yellowish gray ironst6 ae concretions, a few thin mPd-'1,7m, gray clay shale laminae in last root and a half of core, easentia-114 non-calcaareaua, beds flat lying; no odor or coat., but a greasy film as reeUlae in evaT�oratiaag dish at 35591 ffecti.ve Air Carbonate Content O ' ,'Dorosit Permeability �bweigh 3559P 13.6 32, and 7., 3559-1 13a 32 24 rad., Microfossils absent 0567-35864 19° 0n 310" Seadston,s, light gray,, hard, massive, same coxastit- usrats as above but with more argillaceous materisl; non --calcareous; beds flat -lying 16303 Sandstons, light gray, medium hard, has tendency to frac tare roughly pazallel bedding to give a pseudo 'poker Oh+p-like effect,, Grain size is batlw�en :lime and medium range, 75% white and clear q-Lsrtz, 15% dark chert and rock fragments ("salt a -ad pepper" in paxt), balance is whites wea.Whered chert,, mica, garnet and various other minor m.i:aeral,s, very rare coaly partings. zao�a- calcareo;as to slightly calcareous; beds approx ima.telj fjIn.t_I,'.Ving.<> faint odca;r, no cut, greasy film from 35^ a faint odox,, vea.-,/ vary pale cit and greasy film from 358 Wfective Air Carbonate Content lie_pth _-Alorosity Permeability 'b�rsii ht 3571P 13.3Gp 8„5 aids 70 4.;�- 357lU ll.Ze less than l oda 3580 12,30 sample unsuitable 11,16 Xicrofassils absent, 3586-3+602° lag C" Sandsto:ae, light graag© hare, massive,, not so soft or with the distinctive fracture of core above, file grained, subaagala.r to snb"unded, SO white and clear qua'tz, balance is daak chert, roc`: fragrasatee weathered white chart, biotite (gaa.ite common), very rare eexbonaceou.s pasrtings, becomes finer grained to=a..•rd the lease; shghtly to non - calcareous, dip ,109 fair to gond iserose -like odor, pale straw= --colored out and yellow residue from 3594 and 3598 23 0 • Cores � ecove z Ai.crofl sails absent, 35 3502-3608, 40 0" SandstOneo medium light gray, very .Yard, irregular fractura„ V977 calcareous, very fine to fine grained., Constituents as above, biotite quite common; nearly a saa y limestone; dip loe no shows Carbonate Content e b?o i t 3603 38 � nj S3i. tah icrof'ossi%s abs€at 3£08-3523 Sansistone, light gray, vIry fine to fuze grained. 85% white 2nd clear quart-, subangular to subrounded, also dark ,grasp chart, coal particles and biotite" vett' cal.careo-as but softer end non -calcareous in the Zower 10 fee`;., brace medius dark gray clay she 3623-Z633 Siltstones medium li&ht Vzq and ean; � rj ae, slightly calcareous 3633-3643 Clad' shale, m;3dium grats to Medium dark- grafi, 2e,, siltstoae, trace sub - vitreous black cash. 3640-3653 ailtstone, medium light gray, argillaceame, slightly calcareous and clay shale, medium gray, trace cosi. 3653-3663 Siltstaae, me,.i,um light gray, argi.11aceous and ra-Te pebbles, granules and very coarse grains of rounded black chert, Also 3 1 -v -cry light gray bentonite 3663-3680 Siltstone, medium light grv, aon-calc-aroov.a and trace to JOIL light gran fins grained sandstone, vary calcarsous 3680-3685 Sandstone,, very fine and sit tstone 368015-3700 Sil tstone© medium light gray E% argi,lia.csou,s, some soft light grain clay 3790-3795 ( not ban.tazni.t�c) Corp -p th Le a 36 3702-37071 v of Clay shale, med.iLm light grave medium hard, good claavags* very UAA Silty ?amanae,, medium gray slightl,7 mic,eceoa carbonaceous partings; non- calcareous,- dip 2 11 iii. teh Microfoseils absent, 3710-3735 C14Y shale, medium graq, tracs sIItZto, a 3710-3715c, and 3730-3735, trace coal 3710-3715 3735-3762 SiltstoAe, wadi gr -j, T, vera f in.a dTalnad, sand streaks toward 'base, up to 40% madizam gray to medium darn gr, clay shale 24 ffec yive ,fir Carbonate Coatem arG 91 - 0..M-0abil i WV Izr Brei fit 3:594P .1-,10 i.mparmeab)-e 18,, 3594K 10,75 sa 3598,. 10,120 ` 15,1 3 359811 10,45 {$ Ai.crofl sails absent, 35 3502-3608, 40 0" SandstOneo medium light gray, very .Yard, irregular fractura„ V977 calcareous, very fine to fine grained., Constituents as above, biotite quite common; nearly a saa y limestone; dip loe no shows Carbonate Content e b?o i t 3603 38 � nj S3i. tah icrof'ossi%s abs€at 3£08-3523 Sansistone, light gray, vIry fine to fuze grained. 85% white 2nd clear quart-, subangular to subrounded, also dark ,grasp chart, coal particles and biotite" vett' cal.careo-as but softer end non -calcareous in the Zower 10 fee`;., brace medius dark gray clay she 3623-Z633 Siltstones medium li&ht Vzq and ean; � rj ae, slightly calcareous 3633-3643 Clad' shale, m;3dium grats to Medium dark- grafi, 2e,, siltstoae, trace sub - vitreous black cash. 3640-3653 ailtstone, medium light gray, argillaceame, slightly calcareous and clay shale, medium gray, trace cosi. 3653-3663 Siltstaae, me,.i,um light gray, argi.11aceous and ra-Te pebbles, granules and very coarse grains of rounded black chert, Also 3 1 -v -cry light gray bentonite 3663-3680 Siltstone, medium light grv, aon-calc-aroov.a and trace to JOIL light gran fins grained sandstone, vary calcarsous 3680-3685 Sandstone,, very fine and sit tstone 368015-3700 Sil tstone© medium light gray E% argi,lia.csou,s, some soft light grain clay 3790-3795 ( not ban.tazni.t�c) Corp -p th Le a 36 3702-37071 v of Clay shale, med.iLm light grave medium hard, good claavags* very UAA Silty ?amanae,, medium gray slightl,7 mic,eceoa carbonaceous partings; non- calcareous,- dip 2 11 iii. teh Microfoseils absent, 3710-3735 C14Y shale, medium graq, tracs sIItZto, a 3710-3715c, and 3730-3735, trace coal 3710-3715 3735-3762 SiltstoAe, wadi gr -j, T, vera f in.a dTalnad, sand streaks toward 'base, up to 40% madizam gray to medium darn gr, clay shale 24 Gors 37 3762--3782c,' 2OR 01' 141301 GlaYstougo madium light, gray to medium gray, hard, incipient or zo claavage, coatains much micaceous and soa-fle carbonaceous material, quite silty toward the bas: of the interval, Suggestion of "st--rly" badding at 3770, boo Slickensides at 3770*; slje.htiv CalCal-eY-13; dips variable up to 6o VV1 Clay shals and silt sza3,en wed, um light gregy to madixUR aJ, 79rY, assantially as J.r; �r.per portion of' tbls core but iA,,h slightly better c7eavage and with better defined alternation ojo Silty aad clayey beds, silty layers are slightly Calcareous Miarofos,�ils Abse.nt. Vtc37831 0" 5iltstOzOn medium light gray to medium gray, hard, Poor 010ilva.-,S, mic,'-Aceouz-argillaceous partings and IaMiAaOClaleareous-, variable (lips up to '0 J. 4 0 cross-badding, no shows '11:10--Otos iilz absent Di tcZa 3783-3795 8iltstorte, mediam Ught, ''ay, zaac-5- ani, 2,:X"* medium gray to medium dark gray clay shale 3795-3810 Silty clay shale, madium gray,, tyaCe d as and trace white 7e-JL-". exagonite or Cal ci to 3810-.3820 Saadatonso light gray, fine grained, rather Soft, grains subaagulax to sub- rounded, 8e,* lizile and clear guar 4,Z ,, P Oalanceois darks chert, rare coal -jarti- Cleo and some py-itia -tz'o -a and some clay shale,; very rare Inoceramus -priews 382.0-3840 Sil"Ister-el) saaitv,, also au- to 606 medium. gray 'acs medium d-., clay sb,-)le V 3840-3900 010V shale. medium gray to aiedium dark gray', silty in part,, trace of dull to subvitreoas black coal 3840-3845, 3SEO-00860 and 3885-3895. Laex.identalium aad z:j chuak of InoceramzO prisms at 3840-3845 Le-CO—Vir-n-T 39 3900-3920, 200 0" Cl�r shame. medium dark gra.-p medium soft„ poor to fair cleavage, scmej subconchoidal fracture,, micaceous, r small dark carbonaceous fragwents,, non-caleareous; dip l-LO Ditch Microfoesils aburadtat 3920-Z935 Clay sbale,, medium may to med-0iw dark- gr�v, f3lightly silty 3938,-940 Clay shale,, medlum ,-,,Tay plus about 40;,`:'' light bgr�: , flaky, vea,7 bentonitic clay Shale 3M-1-2955 Clay shale, medivm gray, very silty and with a tiace of siltstone,, medium sight, grV, slightly calcareous 3955-3965 3andztlonso light gray, very fine grained, sub regular to subrouaded,, 90 white and clear quart, balance is daxk 031orsd chert, very rare pyrite, s14,.ghtly calcareous 25 Ditch 3965-3975 Clay shale, medium gray, JYP sandWlone and a-,iltstone 3975-3990 SiltstOnee light gray to medium li.ght. gray, 3analso up to 5OPp' medium gray Clay shale 3990-40 SM Clay shale. madillm gray shale 3995-4000 to medium t.ark gr4v- trace siltstone and/or silt Core DLecov AVMLI,h 40 4020-40341 11 810' Clay shale. medium *dark- gray, fair cleavage, finely UlicacaGas, cOntaias occasional thin lenses and lamiLaa mad-_',�um light grafi siltnto-ne; -joderatewly calaareoasl dip 30 3003 C lay a t one.;? I medium dark grayr, similar to upper nortion of'this core but lacks cleavage and silty laminae,. irregular fracture, minor slickensidea at base of Core,- Mcderately calcareous, 21 Itch klicrofoSsils very rare 4034-4110 Qlay shale, medium Gray, s2ty to v917 silty r-ou,, r Ih ,hout, 50P ar-illaceous milt shale, medium 3.1glat gray at A050-4060 4110-4-1130 Clay shales madium gr&y Core nth th 4 41 4:1.30-41430 110 0" Clay shale, medium gra to medium dark gray,, medium hardv excelleat poker chip cleavage, very rare 7eTY thin 911tY laminae; non -calcareous; dip 2-40 Ditch Microfossils absent. 4143-4210 Clav shale, medium gxcgy to medium jariz &TV, trace silts -tone 4150-4160 and 4. .1 11200-4210o trace calcareous medium gray cla.V sb--Ie 4200-42100 -1210-4,230 2iltstonee medium light gray, 9 lig.'atly =O vee,: calcar0ou*, also some medium gray CIV shale 4230-4250 Silty clay shale and axg-ijlacsoas alltstone 1. 4250-4260 0147 shale., medium gray, trace o0al Core � b Recove, ;E��r 42 4261-4.281 q 170 ON Clavatone, madium gray to medium dark gray, hard, Silt dis3omiaated throughout, very rare lighter Colored txUty lamjmje, micaceou.9,, no clsay.49,, Irregulax fractur,3-, none calcareous,- low dip."good 'Fleeting odor on frash fracture, pale straw colored. cut ind Wile yellow residue from 427911 One Fronjl:"A, Zone D-3 43 4231-42909 V ()(A -Silty ClEwstons and argillaceous siltstone with gzad"IUOLS 0-f theses, medium light gray to medium 9MNY, eiltier lamizas ,_�re lighter colored, hardo 26 0 Recovely poor or ao cleavage, micaceousg non -calcareous; dip 0-20� good kerosene -like odor, dale straw colored cut and pala- residue from 42831. Microfossils absent, 44 4Z.?0-4305' 15,11 011 Silty clays tone and argillae.,:-ous siltstone as is cow e immediately above, BOM silty clay shale with poor cle,-.vage Otte talium foun(I at 43021 a:'d a fr-F-gmant Of a Poleeypod at 42926, UOIL- calcareous; beds fl-st-lying.. fair kerosene -like odor, PalO str-nlh! colored aut, anal yellow residue from 4,n.321 and. 43011, M icrof"assile. abzent, Ditch 43C5-4352 Clav sbale, medjum gray silty streaks throughou,fp medium light a gh gray, slightly micaceous io Dept 45 4&7)2-4372' 101 0-9 Clay shale,, medium „ray, medium soft for the most Part. fayr to good cleavags, very rare slightly harder slightly silty strasks, one impression of a pelsq7pod .found, at 4.3601) plus or minus, aon- 041caraous; beds flat -lying„ One microfossil Gpezties abundant, others rare, Zone 'D -B Ditch 4372-4410 ClW shale, medium 4410-4450 ClV- shale, gray, slightly- silty, much pyrite 4400-4410 medium gray 4"-4460 -4460 Clay shale, medium gray, much pyrite, trace s.iltatong 4460-4480 Silty claY Shale, medium light gray, some sandstone„ light, gray, fine graiaed, 80% 'white 4480-4510 Clay shale, medium and. cle-ar quaxtz, also da31c chert, some biotite stone, also trace of gray to medium dark gray, trace iaed4 UM light gray silt - light gray ?�Ilay with 'A quite a lot (not bentoni4v-ic) 4490-4510 Of biotite in It 4510-4540 Clay shale, medium greZ Core E'Mth Recover,- 46 45,13-45631 20, Cts Silty C18 -Y Zbale au some argillaceous siltstoneo medlu;m grzq, medium hard, fair to poor cleavage,, 91 Igh tly Z" ' , one small pels---,---ypod noted at 45-590; AOL- zaacaxecas; local di -os -ap to 100 but wads close to Microfossilo. absent, 27 0 0 D i th 4560-4610 Clay shale,- madiux, grav to medit:im dare �rea;'r, trace to 5)- Siltstone., medium light gray 4590-4500 4610-4640 Clay shale,. medium grej trace 101� medivim light, gray siltstone,, non - calcareous, zlzo trace vary lighl; gray beallponite, contains a few flakes of brown 'biotite, trace coal 46,20 46-40 4640-46 Clay sbaalav madilutu gray* to medium dark gra;,r, contains varying amounts of silt. Trace of siltstone and aPxdstoLs 465G-4-570 C I ay sballe, mo%dlum- gra;,- also soo-e lig,.'at gray aad some dark gray the latter with a fish sale, Traca very lightu � .L _ray bantonite 4670-4680 Clay shale, medium graly.- to mad-ILi-w, dank gr.Nr, some light gran clay shale with bluish Cast 4680-4700 Clay shalep medium grV, 4700-4735 Clay shale, madiwi grV. plus tz--:Xe to 40% siltstone,, medium light gray, trace liras saadstaaa, noa-cal eared as, tTace bentoaite Core 2_92tb Eecovgarf 47 47355-4746 81 off Clay ohalej, meditun dark gray, medium hard, good tO exc;f," I-Sr4t cleavage, silty,, very rare thirt silt ohale iam:*Laaenoa-Lealca-reous; dip 10-11.0 Ve,-I-.IL' rare 48 4745-47561 00 ON hitch 4756-4920 Clay Shols, madiun &Tay, some zi�L �t sals or silty clay at 4770-4'780000 II - 4660-4870o 4880-4890 and 4910-49;:0, %,' coal 4300-4810 aad trace of coal 4870-4890 5',4 vb}te ben toaite or beta to.aitie, clay sh a 4780-4790, 41, al 4820-48ZO anal 4870-4-880 pluz aaaerous ether tra,_,0:3 4920- 5" 00 Clay shale, madium a;,r �,O media dz--irk gray, "trace of silt shale 4980- 5000 (very calcareous) 5o2o-5040, ---10% white beatonite 5030-5040„ 5050-5060 and 50905100 plus several other traces, Trace shiny black coal A,950 -L196(), CoEfl Duth 1SCOVAM 49 51.0(1-51151 1.05 0`` Claj shale, madlum dark gray, madium hard, poor tO fE�ir cleavage, rare alizhtly silty partings, bo':,tom f of cors is broken into pieces many of -which hava -noli-shed sli„keasided surfaces, dip of is 300 to nearly vertical; dip of beds ?Z-350 throughout cora,; - non -calcareous hitch Marolfauaa rare, some speciga commons Zone J—IB 511f-52,60 Clz%v sbale, nediiu--, gr.V- to medium cL--rk gray, 5`grayish brown clv iroa- stone 5120-51U09 5% arag-valts 6101-5-150, trace coal 6115-5120, some ben- tonitic clay 0 • 5160-5200 Clay shale, medium gray to medium, dark 8rV, plus trace of Soft light olive gray silt shale throughout, trace aragonite 5160-51.70,, trace light bluish gray bentonitic clay shal.ee. trace whits bentonite 5190-5200 5200-5.210 Bentonite,, approximately 4jo of sample, white with a few brown biotite plates, also 30% bentonitic clay scale, light bluish, gray with broun biotite plates, Wo medium dark gray clu shale 5210-5441 Clay shale. medium dark gray", 5 white bentonite and/or very light gray bentonitic shale 5210-52X1, 529:_53E20, seve7al traces of bentonite above 53700 Trace of aragonite 5220-5230, trace "of coat, and pyrite 5360-5370, trace siltstone 5410-5420 Care Rut Becovexz 50 5441-54569 9s 0" Clay shale, medium dark gr.V to (occasionally) dark gray, medium hard, good cleavage. numerous thin laminae and partings of medius gray wilt shale, rare slightly micaceous partings, one interval of about a foot of "swirly" bedding, poorly developed s.sAckensides at approximately 64469 and 54481, straw colored crit and pale yellow residue From 5441@ non -calcareous; dip 100 AMicrofossilz very rare, 51 5468-54630,4$ 0" Claystone and clay shaleo medium dark gray, some medium gray silty laminae, hard, poor cleavage@ very small amoun�, of irregular bodding; non-- calcaraous; dips variable 3-200 Hicrof®sails rare, .A 5463-5480 Clay shale medium dark gray, trace medium gray silt shale 5480-551.0 Clay shale, medium dark gray, 30-50% medium gray silt shale, u:onrcalcarsous 5510-5530 Clay shale,, medium dark gray, 44- sandy siltstone,, medium light gray, non - calcareous to very calcareous 55305610 Clay shale, medium dark gray. 2(2;4 medium gray siltstone, moderately cal- careous at 5550-5560, traces of medium light gray, non -calcareous siltstone throughout, trace coal 55601-5570 5610-5748 Clair shale, medium dark grayp trace medium gray non -calcareous siltstone 56505660 Core I3eotla Recovery 52 5748--57681 190 ON Clay shales medium dark gray, medium hard, fair to good cleavage, slightly micaceous, silt essentially absent; non- calcareous; dip 13--150 Foramir,ifara very rare, radiolaria (pyritic casts) rare -one apeciss common, PIV • :3j 5768-5982 Clay shale, medium dark grey, trace medium light gray, silt shale 6790-5810 and 5914-5920, 5-10% white bentonite or very light gray ben- tonitic clay shale and coal, at 5350-5860 and 5960-5370 Care Rw 1122MM 53 598PI-6004 ® 14+ 00 Qday shale, medium gray to medium dark gray, moderately hard, excellent poker chip cleavage, no silt; non -cal eareoas; dip X150 kicrofossils very rare, KIK �-Eli py ; � � -"rdl?9 Florence IGbins0ns Geologist September 19, 1951 f "Old" ;:avy Wells (1944-53) s r I Well game j Avak - / /00-09 i South Barrow -1 /OU -00 South Barrow -2 South -Barrow-3 100-!00-6-4 South Barrow -4 160r',096 Fish Creek -1 /oo 466 j Grandstand -1 /,00 -�s3 I Gubik-1 /b0 -,Pa i Gubik-2 j�00-oia� Kaolak-1 /OU -oho j Kni.feblade-1 /Ot) - /(9 1 I Knifeblade-2 160 - c� Knifeblade-2A )5 Ko lia;��btade 5 i Meade -1 OxLmalik-1 East Oumalik-1 /00 /ISS Simpson -1 vos-t�, j Sign psort -/ )00�01'� Square Lake -1 OU -IL r Titaluk-1 /p0_ i90 Topagoruk-1 106 -161 i _ East Topagoruk-1 Umiat-1 100 -a0� Umiat-2 I ob Umiat-3 !OV Umiat-4 100 -a�a Umiat-S /00 -213 Umiat-6 /00 -c3/4111; Umiat-7 106'a� Umiat-8 /UO Umiat-9 `BCS -al Umiat-10 1D0 al Umiat-11 3 Wolf Creek -1 1OO- 1 I Wolf Creek -2 t I Wolf Creek -3 �a I "Intermediate" Wells at Barrow,(1955-1974) South Barrow -5 160 -ba2S South Barrow -6 p South Barrow -7 /60'-030 ,South Barrow -8 /001-63/ South Barrow -9 /00-63.q South Barrow -10 !OU -633 South Barrow -11 ICD -53Y South Barrow -12 A15"
