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. . ~ .-. NORTHSLOPEBOROUGB DEPARTMENT OF INDUSTRIAL DEVELOPMENT BARROW GAS FIELD DEVELOPMENT - 3201 C Street, Suite 602 Anchorage, Alaska 99503 Phone: 907·561·8820 Mr. Lonnie C. smith commissioner Alaska oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 June 22, 1989 REFERENCE: NSB '6 Barrow Sandstone Kinera10qy & Drilling Fluid Sensitivity Analysis Dear Lonnie: SC..~NED SEP 0 7 2007 Enclosed is a copy of opstad & Associates Report #OAA-890503 entitled "_~Sands'tone Hineralogy and Drillinqp,luid Sensit.ivity Analysis" which is being submitted to AOGCC Barrow Gas Field files. Please hold this document in confidential status for the period required by state of Alaska statute:. c2 <1~? Should you have any questions concerning this document, please call me at 276-0203. Thank you. t 6i~. .J. µ'-¡6 f+""" ~ ().( t, "s ~ / (L ^rlCl ./I~t (t-r..;,¡- ~E IE Æ1t f\vh e-cL /-"tR.. J>ÃtÈ ·~·I)8 t~~ Best regards, ~ ~ Erik A. Opstad Geoscience Consultant Barrow Gas Fields d LfS - "'3/fb R E"Cl-t-\ \J.~ Ð 'JUM 27 \9ß9 cons. comm\Ss\on Alaska 0\\ & ~~\ioraga ~) ~l~ . . ELKO International, LLC 3500 Taiga Drive Anchorage, Alaska 99516-2886 ERIK A. OPSTAD General Manager Tel:: (907) 345-6346 Gel: (907) 244-5210 E-mail: eopstad@GCl.net I¥~-C},~ August 28, 2007 RECEIVED AUG 3 0 2007 Mr. Steve McMains State of Alaska Oil & Gas Conservation Commission 333 West 7th Avenue, Suite 100 Anchorage, Alaska 99501 Alaska Oil & Gas Cons. Commission Anchorage Re: Report OAA..890503 Confidentiality Status Dear Mr. McMains: As we discussed by telephone, although I initially requested the Alaska Oil and Gas Conservation Commission (AOGCC) to hold Opstad & Associates (1) report OAA-890503 entitled" Barrow Sandstone Mineralogy and Drilling Fluid Sensitivity Analysis" confidential, confidéntial status forthat réportls no longer necessary. The AOGCCnowhas my authorization to place that report in the public file. Please let me know if theré is anyway I can assist the Commission further. Sincerely, ELKO International, LLC 1 Opstad & Associates is a predecessor company to ELKO International, LLC; Mr. Opstad is a principal and executive manager in both organi7.atiOns. MICROFILMED 10/12/00 DO NOT PLACE ANY NEW MATERIAL UNDER THIS PAGE I c-ap_ fm lO jan95 LOCATION CLEARANCE REPORT State of Alaska OIL AND GAS CONSERVATION COMMISSION Memorandum To File: API No. Well Name Operator Location .q, Review the well file, and comment on pluqginq, well head status, and location clearance - provide loc. clear, code., ~ugs:, c~p ~ell head ~u~ / Code ,~. ~ ~ A~: ur- ALAbr,,A ,, AL'-"KA OIL AND GAS CONSERVAT'-~'N COMMISSION WELL COMPL ?iON OR RECOMPLE', .ON REPORT AND LOG 1. Status of Well OIL J--] GAS ,~J SUSPENDED ~ ABANDONED "~ SERVICE I--J C~assification of Service Well 2. Name of Operator North Slope Borough 3. Address P.O. Box 1120, Barrow, Alaska 99723 4. Location of well at surface 1850' FEL, 2000' FSL, Sec 6-T21N-R17W, At Top Producing Interval Same At Total Depth Same U.M. 5. Elevation in feet (indicate KB, DF, etc.) 45.5' KB 6. Lease Designation and Serial No. 7. Permit Number 88-18 8. APl Numi~er 50-023-20026 9. Unit or Lease Name South Barrow 10. Well Number NSB 6 11. Field and Pool Sikulik 12. Date Spudded 13. Date T.D. Reached j 14. Date Comp., Susp. or Aband. j 15. Water Depth, if offshore J16. No. of Comph 3/12/88 3/29/88 Jz]/21/94 AbandonedJ feet MSL I 17. Total Depth (MD+TV D)2564 18. Plug Back Depth (MD+'in/D)j 19. Directional SurveY2512 YES ~ NO [] 20. Depth where SSSV setfeet MD j 21. Thickness of Permafrc650, Estimated 22. Type Electric or Other Logs Run Spinner, Diff. Temp-G MWI}, (DLL-MLL-GR), (CNL-FDC-GR). BI-IC Acoustic. Prolog,.. DiD]Og, Prodip. SDectraIog, CBL-C 23. CASING, LINER AND CEMENTING RECORD CASING SIZE 20" 13-3/8" 9-5/8" 7,t WT. PER FT. 94,0 72.0 53.5 32.0 GRADE H 40 N 80 N 80 N 80 SETTING DEPTH MD TOP BOTTOM 0 58' _ 0 , 1,68' 0. . ]574' 0 2564' 24. Perforations open to Production (MD+l-VD of Top and Bottom and interval, size and number) I HOLE SIZE ~ CEMENTING RECORD 24" J 75 .~k.~ PPrm. 17~" J 236 sks P~rm. 1~" J 850 _~ks P~rm. 8~" ~ 85 sks Cl~s G. 25. TUBING RECORD AMOUNT PULLED SIZE DEPTH SET (MD) PACKER SET (MD) 4½" 2132 2115 2-3/8" 2118 26. ' ACID, FRACTURE, CEMENT SQUEEZE, ETC. DEPTH INTERVAL (MD) AMOUNT& KIND OF MATERIAL USED 2178'- 2196', 2202'- 2212' 2218'- 2228', 2236'- 2252' 4JSPF .6" Diameter 27. PRODUCTION TEST Date First Production 8/10/89 Date of Test Hours Tested Flow Tubing Casing Pressure Press. 28. jMethod of Operation (Flowing, gas lift, etc.) Flowing J24-HOUR RATE ~ CDR E DATA WATER-BBL JCHOKESIZE JGAS-OILRATIO WATER-BBL JOILGRAVITY-API (corr) Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips. RECEIVED MAY 3 1 1994 A!.aska 0il & Gas Cons. Commission Anchorage 29. NAME GEOLOGIC MA~ /S MEAS. DEPTH TRUE VERT. DEPTH i~OFIMATION TES '; Include interval tested, pressure data, all fluids recovered and gravity, GOR, -~nd time of each phase. 31. LIST OF ATTACHMENTS 32. hereby certify that the foregoing is true and correct to the best of my knowledge Date INSTRUCTIONS General' This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Item 1' Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5' Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21' Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23' Attached supplemental records for this well should show the details of any multiple stage cement- ing and the location of the cementing tool. Item 27' Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28' If no cores taken, indicate "none". Form 10-407 P & A PROJECT 1994 NSB 6 SEC. 6-T21N-R17W U.M. 3/31/94: Cleared snow & moved equipment from NSB 5 to location. Hauled unnecessary equipment to S. Field staging area. Rigged up bluey line from the 4% x 7 annulus to tank. Prepared piping & tree for cementing. SDFN. 4/1/94: Finished rigging up to cement. Pumped 2% bbls. methanol down the 2%, 2% bbls. methanol down the 2~ x 4% & 2% bbls. down the 4% x 7. Pumped 49 sks. (tbg. vol.) permafrost cement down the 2%. Switched to the 2~ x 4% and pumped 405 sks. permafrost with returns up the 4½ x 7 to fill both annuli. Rigged back to the 2% and pumped 21 sks. permafrost cement to fill the perfs and casing below the packer. Switched to the 7 x 9~ annulus & pumped 36 sks. (255') permafrost cement. Rigged down & moved equipment to start of ice road. 4/13/94: Removed piping & instruments from well house. Checked psi on all opening, 2~8 = 0, 2~ x 4½ = 0, 4½ x 7 = 0, 7 x 95/8 = 220 psig. Remove well house. 4/16/94: Topped off 2~ x 4½ annulus with 10 sks. permafrost cement. Topped off 4½ x 7 annulus with 16 sks. permafrost cement. Tubing was full. SDFN. 4/17/94: Checked 7 x 9% annulus. 260 psi. 4/18/94: Rigged bluey line to 7 x 9% & bled it off. Immediately went to zero with no flow or blow. Cleaned up location. 4/19/94: Steamed out well house pilings & removed them. cellar off at GL. SDFN. Cut 4/20/94: Steamed & dug out cellar to 4 ft. BGL. Hauled off pilings & filled the holes where they were. 4/21/94: Moved in welding & cutting equipment and cut off casings. Installed dry hole marker at 3 ft. BGL (flat plate) as requested by AOGCC. Filled cellar with dirt. RECEIVED MAY 3 1 1994 Ai~ska Oil & Gas Cons. C~mmissJon Anchorage NORTH SLOPE BOROUGH DEPARTMENT OF INDUSTRIAL DEVELOPMENT BARROW GAS FIELDS P.O. Box 1120 Barrow, Alaska 99723 Phone: (907) 852-0395 Fax: (907) 852-8971 ANCHORAGE LIAISON OFFICE 3201 C Street, Suite 602 Anchorage, Alaska 99503 Phone: (907) 561-8820 Fax: (907) 562-1940 BILL BROWER, Director February 22, 1994 Attn: Blair Wondzell, Senior Petroleum Engineer Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501-3192 RE: DISPOSAL OF DRILLING FLUIDS Dear Blair: On February 22, 1994, I requested permission by telephone to dispose of 15,400~q~o~ns of drilling mud by pumping it into the perforated interval in the~SB~~~ell prior to abandonment. After you discussed my request with Mr. Johnston, I was notified that we could dispose of the mud as requested. I would like to thank you for your quick response and will incorporate the operation into our abandonment procedure for this well. Sincerely, W.P. Pritchard, Petroleum Engineer Allen & Crouch RECEIVED B 2 8 1994 Gas Cons. Commission Anchorage NORTH SLOPE BOROUGH DEPARTMENT OF INDUSTRIAL DEVELOPMENT BARROW GAS FIELDS P.O. Box 1120 Barrow, Alaska 99723 Phone: (907)~_~85_2_~.0_395~ Fax: (907) 852-8971 ANCHORAGE LIAISON OFFICE 3201 C Street, Suite 602 Anchorage, Alaska 99503 Phone: (907) 561-8820 Fax: (907) 562-1940 BILL BROWER, Director January 31, 1994 Attn: Dave Johnston, Commission Chairman Blair Wondzell, Senior Petroleum Engineer Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501-3192 RE: APPLICATIONS FOR SUNDRY APPROVALS TO PLUG & ABANDON THE NSB #3, #4, #5, #6 AND SB #17 WELLS Gentlemen: ~,~" q't,gt,'f~,~Aq %~(t, ~0 Enclosed are the applications for the Sundry Approvals to Plug & Abandon (P/A) the above referenced wells. The wellbore schematics for these wells are also attached. All of these wells are suspended wells which will not produce a commercial supply of gas to the Barrow community. In April of 1979, Husky Oil completed and tested the South Barrow #17 well for the NPR operations. It was determined that this well was not capable of producing commercially and it was left as a suspended but producible gas well. In May of 1987, the NSB #3 wildcat well was drilled and tested. The decision was made not to complete the well for production based on results from drill stem testing and wireline logging. The NSB #4, #5, and #6 wells were drilled and completed in the Sikulik Field during the period from 1987 to 1989. The NSB #6 well was the only well capable of producing commercial quantities of gas. The well produced for a short period until it was shut in on September of 1990 due to freezing problems. The NSB #4 and NSB #5 wells both produced considerable quantities of water. Workovers were performed on the NSB #4 and #5 wells in early 1990. Diesel oil-cement squeeze jobs were attempted on these wells in an effort to shut off water. However, follow up production tests revealed strong water flows which resulted in non commercial gas production and suspension of the wells. On October 29, 1992 Bill Crouch met with the AOGCC to propose and review a program to P/A these wells. Discussions during this meeting resulted in verbal approval of the proposal. The following is a summary of the proposed P/A program: RECEIVED FEB - 7 1994 A~aska u~i & Gas Cons. Commission Anchorage NORTH SLOPE BOROUGH NSB #3, #4, #5, #6 AND SOUTH BARROW #17 Sundry Application .to Plug & Abandon January 31, 1994 Application prepared by Allen & Crouch, Petroleum Engineers and filed with the Alaska Oil & Gas Conservation Commission on behalf of the North Slope Borough. RECEIVED FEB - T 1994 Alaska Oil & Gas Cons. Commission Anchorage '~daska Oil & Gas Conse~ .don Commission January 31, 1994 Page Two Well - South Barrow #17 NSB #3 NSB #4 1. Pump cement down the tubing until there are good cement returns on the annulus at surface. This will result in completely filling the 2-7/8" tubing and the 7" casing above the existing retainer. 2. Nipple down the Christmas tree and set a marker post or plate. 1. Place a 150' surface plug in the 7" casing with 1" or 2" hose. 2. Nipple down the Christmas tree and set a marker plate or post. ~ ~o.~ . 1. Pump a 150' surface plug in the 7"x9-5/8" annulus. 2. Bullhead the tubing full of cement and squeeze the L~)~' perforations. The glycol heat string will be left in · the 2-3/8"x41/2" and 4~"x7" annuluses. 3. Nipple down the Christmas tree and set a marker plate or post. 1. Pump a 150' surface plug in the 7"x9-5/8" annulus. 2. Fill the 2-3/8" tubing, 2-3/8 x4~A annulus, 4½"x7" annulus and squeeze the perforations with cement. 3. Nipple down the Christmas tree and set a marker plate or post. Subsequent to Bill Crouch's meeting with the AOGCC in October of 1992, we obtained funding approval for the P/A program and ordered the permafrost cement. Pending final approval from the commission, ice roads will be constructed to the wells and the P/A work will be scheduled to begin on or about the first week in March. If you have anY questions or require additional information, please contact me at the Barrow office. NSB #5 and #6 Sincerely, John A. Fanto Petroleum Engineer Allen & Crouch FE~ '" 7 't994 Gas Cons. Commission Anchorage STATE OF ALASKA ~ SKA OILAND GAS CONSERVATION CON. ;SION APPLICATION FOR SUNDRY APPROVALS v 1. Type of Request: Abandon .21[_ Suspend __ Operation shutdown __ Re-enter suspended well __' : % ~/~ Alter casIng __ Repair well Change approved program __ Pull tubing 2. Name of Operator North Slope Borough - Barrow Gas Fields ] D?el.°Pment _---- 45.5' KB feet ] . . I ,-xptoratory ~ _ L Aoaress I StratigraDhic 7. U ni_t or ]~ro~?~n, ame P.O. BOX 1120, Barrow, AK 99723 J Seneca__ ~ oo~t~[ope ~orough 4. Location of well at sudace 1850' FEL, 2000' FSL, Sec 6, T21N, R17W, U.M., AK At top of productive interval At effective depth At total depth Same Same Same 12. Present well condition summary Total depth: meaSured true vertical Effective depth: measured true vertical Casing Structural Conductor Surface Intermediate Production Liner Perforation depth: 2564 feet Plugs (measured) None 2564 feet 8. Well number NSB #6 9. Permit number 88-18 10. APl number 50--023-20026 11. Field/Pool Sikulik RECEIVED FEB - 7 1994 2512 feet Junk (measured) None 2512 feet A~aska 0ii & Gas Cons. Commission Anchorage Length Size Cemented Measured depth True vertical depth N/A N/A N/A N/A N/A 58' 20" 75 sx. Perm. 58' 58' 168' 13-3/8" 236 sx. Perm. 168' 168' 1574' 9-5/8" 850 sx. Perm. 1574' ]574' 2564' 7" 85 sx. "G" 2564' 2564' N/A N/A N/A N/A N/A measured true vertical 2178'-2196', 2202'-2212', 2218'-2228', 2236'-2252' ~ 4 JSPF. Glycol purged from the heat string. Tbg perforated ~ 206]'-2067' Same Tubing (size, grade, and measured depth) 4{" 12.6# N-80 at 2132' w/Packer at 2115' 2-3/8" 4.7# N-80 stung into PBR at 2122' Packers and SSSV (type and measured depth) Ava 7" Permanent Hydraulic Packer at 2115' 13. Attachments Description summary of proposal _3[. Detailed operations program __ BOP sketch __ 14. Estimated date for commencing operation ~ 15. March 1, 1994 16. If proposal was verbally approved Oil __ Blair Wondzell 10/27/92 Name of approver Date approved { Service 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed ~~~ Title Petroleum Engineer ~' John A., F~'nto ' FOR COMMISSION USE ONLY Status of well classification as: Gas__ Suspended.x, Date [ Approval No.? Conditions of approval: Notify Commission so representative may witness Plug integrity ~ BOP Test __ Location clearance ~ Mechanical Integrity Test __ Subsequent form required 10- ~'/" ~ ..?' ~¢(,:,~ o~ ~L ~ Cu~f~ ~,]o.,-~_ c.i/'~o.'~-~ (/0 ~¢/°'"/~'~,)Appr°vedC°pyReturned Original Signeo - Approved by order of the Commission David W. Johnston Commissioner Date NSB #6 1850' FEL, 2000' FSL Sec 6, T21N, R17W, U.M., AK 20" 94# H-40 Csg @ 58' In 26" Hole 13-3/8" 72# N-80 Csg @ 168' In 17W' Hole 9-5/8" 53.5# N-80 Csg @ 1574' In 12~A" Hole Ava Circulating Sub w/9 Ports @ 2110' 7" 32# N-80 Csg @ 2564' In 8~" Hole PBTD @ 2512' Wellbore Schemati TD @ 2564' All Measurements Are KB Elevations BHF = 27.0' KB = 45.5' FMC Wellhead Arctic Pack 2-3/8" 4.7# N-80 Tbg @ 2118' 4W' 12.6 # N-80 Tbg @ 2132' Tubing Perforations @ 2061'-2067' Ava Packer @ 2115' Ava 2-3/8" PBR @2122' 2-3/8" Shear Sub @ 2132' Perforations @ 4JSPF 2178'-2196', 2202'-2212' 2218'-2228', 2236'-2252' ~--"--'"' STATE OF ALASKA COMI~llbolON 0 ~ ~ ALAbKA OIL AND GAS CONSERVATION REPORT OF SUNDRY WELL OPERATIONS GiN 1. Operations performed: Operation shutdown __ Stimulate __ Plugging __ Pull tubing __ Alter casing __ Repair well __ Pedorate ~' Other __ 2. Name of Operator NORTH SLOPE BOROUGH - BARROW GAS FIELDS 3. Address P.O. BOX 1120, Barrow, Alaska 99723 4. Location of well at surface 1850 ' At top of productive interval Same At effective depth Same At total depth Same 5. Type of Well: Development Exploratory Stratigraphic Service - T2IN FEL 2000' FSL Sec. 6 - R17W U.M. Ak. 6. Datum elevation (DF or KB) 45-47' K'R 7. Unit or Property name SOt. Tell BARROW 8. Well number NSB #6 9. Permitnumbedapprovalnumber 88-18 / 9-830 10. APInumber 50-- 023020026 feet 12. Present well condition sUmmary Total depth: measured true vertical 11. Field/Pool Sikulik 2564 feet Plugs (measured) none feet ~;ame Effective depth: measured 2512 feet Junk (measured) true vertical same feet Casing Length Size Cemented Measured depth True vertical depth Structural n/a n/a n/a n/a n/a Conductor 58 ' 20" 75 sx 'pe:rm 58' 58' Surface 168 ' 13 3/8" 236 sx perm 168 ' 168 ' Intermediate 1574 ' 9 5/8" 850 sx perm 1574 ' 1574 ' Production 2564' 7" G 2564 ' 2564 ' Liner n/a n/a n/a n/a n/a Perforation depth: measured 2178-2196, 2202-2212, 2218-2228, 2236-2252 true vertical same 13. Stimulation or cement squeeze summary Intervals treated (measured) n/a Treatment description including volumes used and final pressure ~bing(size, grade, andmeasureddepth) 4½" 12.6" N-80 at 2132' w/ Packer at 2115' ~ 2 3/8" 4.7" N-80 stung into PBR at 2122' Pac~rsandSSSV(typeandmeasureddepth) AVA 7" Permanent HydraulJ.c Packer a-I~,~~~r~! 14. Prior to well operation Subsequent to operation NOV [ Alaska 0ii & Gas Cons. Commlssl Anchorage Representative Daily Average Production or Injection Data OiI-Bbl Gas-Mcf Water-Bbl Casing Pressure 0 500 0 0 865 psig ~bingPressure 865 psig 865 psig 15. Attachments Copies of Logs and Surveys run Daily Report of Well Operations 0 500 0 Service 16. Status of well classification as: Oil __ Gas ~ Suspended __ Date SUBMIT IN DUPLIOATE 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. Signed _ . Title Form 10-404 Rev 06/15/88 Wirer~'- Perforating Workover Log WELL IPBDT ' I FIELD ' DISTRICT - STATE NSB #6 I 2512' KBI Barrow Gas Field CONTRACTOR OPERATION AT REPORT TIME C.A. White / BGF Personnel Performte H~mtntrin9 REM IDAYS IL, ATE 3 [10-5-89 10-2-89 Loaded Mathey sl i ckline uni~ on RE-10 and traveled to NSB #6. Rigged up BOP's and lubricator. WIH with guage ring to 2110' KB. POH. WIH and set collar stop at 2067' KB.POH. 'Loaded Kinley qun and made two trips for two shots. SDFN 10-3-89 Traveled to NSB #6. Made 10 trips in hole for 10 shots. Total- 12 shotS. SDFN 10-4-89 Traveled to NSB #6. Made 8 trips in hole for 8 shots. Total - 20 shots. Perforations are ½" diameter through the 2 3/8" tubing frcm 2067' to 2061' with an average spacing between shots of 3.6". WIH and retrieved collar stop. POH. RDMO :- .. WeatherReport OF ! Chill FactOroF i Visibility CHECK THIS BLOCK IF SUMMARY CONTINUED ON BACK I Temp. miles NORTH ALA51~ A ARCO PM 1 21 .Alaska.Oil & mo ,,,,... ,,_ Ancflomn. IWind Vel. QUALITY LITHO =,alNTING -- ANCHORAGE STATE Of ALASKA -'-- ' ALASKA OIL AND GAS CONSERVATION C~ ..MISSION WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1. Status of Well Classification of Service Well OIL C::] GAS ~:] SUSPENDED I-] ABANDONED [] SERVICE [] ..... 2. Name of Operator ....... 7':' Permit Number North Slope Borough - Barrow Gas Fields 88-18 3'. Address ...... 8. APl Number P.O. Box 1120, Barrow, Alaska 99723 50- 023-20026 4. Location of well at surf'ace 9. Unit or Lea~e N~me ' 1850'FEL 2000'FSL Sec. 6, T21N, R17W, U.M., .~+~_,~. h ..~?~c~--^ ~ ..:~ At Top Producing Interval Alaska 10. Well Number same N~#6 At Total Depth 11. Field and Pool same . , . 5: Elevation in feet (indicate KB, DF, etc.} I 6. Lease Designation and Serial No. 45.47 'KBI Sikulik 12. Date Spudded3__12_88 13. Date T.D. Reached3_29_88 14. Date Comp., Su%o. or Aband.8_10_89 I15' water Depth' if °ffsh0r'en/a feet MSL [ 16: ~'0i°f Cornpletions 17. Total Depth (MD+TvD) 18.Plug Ba~k Depth(MD+TVD) 19. Dire~ti(~'nal survey 20. Depth where sSSV set ! 21. :l'hickness of Permafrost 2564' KB MD 2512' KB MD YES[~ NO[:] n/a f~tMDJ 650 (Es.timated) 22. Type EleCtric or Other Logs Run F~WD. DLL-MLL-GR, CNL-FDC-GR, BHC Acoust[.i.c., Prolog, Diplog, Prod(p, Spectralog, CBL-¢" 23. ,.. , CASING.. LINER ANDCEME..NTING RECORD SpiBner, Diff.' Temp-GR", ' SETTING DEPTH MD CASING SIZE WT. PER FT. GRADE TOP BOTTOM HOLE SIZE CEMENTING RECORD AMOUNT PULLED _2~_ 94 }{-40 0 58' 24" 75 sx Perm none ,,, 13-3/~" 72 N.-80 .. 0 168' 17½" 236 sx Perm . .non.e 9-5/~" 53.5 N-80 0 1574' 12~" 850 Sx Perm .... Done 7" 32 N-80. 0 2564 ' 8%" 85 sX G none .. ,, , 24. Perforations open to Production (MD+TVD of Top and Bottom and 25.' TUBING RECORD ,.. interval, size and number) SIZE DEPTH SET (MO) PACKER SET (MO) ........ 2178-2196' 18' 4~" 12.6#N-8.0 2132' .21..15 ' .. 2202-2212' 10' 2~';4.7#N-80 2118' I 2%22'¢Oacker. PRR :26. ACID, FRACTURE, CEI~IENT SOUEEZE:'ETC. 2218-2228 ' 10 ' ..... 2236-2252 ' 16 ' DEPTH INTERVAL (MD) AMOUNT & KiND OF MATERIAL USED 54' @ 4JSPF = 216, none 0.6" Diameter shots at " _ 90° phasing ........ 27. PRODUCTION TEST Date First Production I Method of operation (Flowing, gas lift, etc.) 8 / 10 / 89 ( flowing Date of Test Ho~rs Tested "PRODUCTION FBR OIL-BBL ' GA$-MCF WATER.BBL CHOKE SIZE J GAs-oIL RATIO . 4/29/88.. 24 TESTPERIOD ~ 0 693 0 10/64. i .... n/a Flow Tubing Casing"P-;$sure CALCU~.ATED OIL-BBL ' "GAS-MCF WATER-BBL OIL GRAVITY-APl (CURT) Press. 893 ,0 (PKR) 24-HOUR RATE I~ 0 693 0 n/a ..... 28. coRE DATA ......... Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water. Submit core chips' Nine conventional cores were taken in this well. Cores #1-#3 were from the Lower Cretaceous "Pebble Shale" unit also referred to as the "Walakpa Sandstone." It consists of medium-gray mudstone, slightly calcareous and pyritic with a 9-foot thick light-grey, very fine to fine grained, sandstone interval. Core 4 has a s/milar looking mudstone a/a bit from the section just above the Barrow Sands. Cores 5-9 are from the Barrow Sands and consist of a light to medium gray, bioturbed, interbedded sequence of mudstone, siltstone and sandstone. The sandston~ ,, i.S very fine to fine qrained, containinq d~-~co.ntin, uous clay laminae .... LL, m - Form 10-407 Rev. 7-1-80 CONTINUED ON REVERSE SIDE - 49 - ,, GEOLOGIC MARi ~S :, .,:MATION TESTS , NAME ..- Include interval tasted, pressure data. all fluids recovered and gravity, MEAS. DEPTH TRUE VERT. DEPTH GOR, and time of each phase. Permafrost 650 650 DST#1 1574=1620' misrun tool plugged Base HRZ 1349 1349 DST#2 1574-1620' * iH 715 LCU 1735 1735 iF 638 18 min Upper Barrow SS 2152 2152 1S1 630 30 rain Lower Barrow SS 2235 2235 FF 62 60 min FSI 93 120 min Sag River SS 2448 2448 · See attached DST Analysis Argillit e 2529 2529 · 31. LIST OF ATTACHMENTS Single sho~- Survey, Well history, DST#2, Core Analysis, 32. ! hereby cectif¥ that [he foregoing is true and correct to the best of my knowledge Signed ~,~/~ ~/~/~__ ~ mitle P~troletlm Da~e 9/9/~9 Wi Yl'[sm '~(.' A1 ~ e.n INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. item 1: Classification of Service Wells: Gas injection, water injection, steam injection, air injection, salt water disposal, water supply for injection, observation, injection for in-situ combustion. Item 5: Indicate which elevation is used as reference (where not otherwise shown) for depth measurements given in other spaces on this form and in any attachments. Item 16 and 24: If this well is completed for separate production from more than one interval (multiple completion), so state in item 16, and in item 24 show the producing intervals for only the interval reported in item 27. Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval. Item 21: Indicate whether from ground level (GL) or other elevation (DF, KB, etc.). Item 23: Attached supplemental records for this well should show the details of any multiple stage cement- lng and the location of the cementing toot. Item 27: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water In- jection, Gas Injection, Shut-in, Other-explain. Item 28' If no cores taken, indicate "none". Form 10-407 - 50 - Measured Depth, ft. 125 530 810 1185 1650 1871 2085 2400 2564 BARROW GAS FIELD NSB # 6 TOTCO Single Shot Survey Deviation, 1 1-3/4 1-3/4 1-i/4 i-i/4 i-i/2 i-1/2 1-3/4 1-3/4 Degrees April 25, 1988 NSB #6 WELL HISTORY DELINEATION WELL - SIKULIK STRUCTURE 3-09-88 thru 3-12-88 MIRU 3-13-88 - Depth 168' MW 8.9 Spud at 0200 hrs on 3-12-88. Drlg to 168'. Run 13-3/8" 72# N-80 csg to 168'. Cemented same to surface. Weld on bradenhead. 3-14-88 - Depth 168' MW 8.9 Finish welding and testing 13-3/8" bradenhead. NU diverter. 3-15-88 - Depth 374' MW 9.1 Finish NU diverter system. 374'. Drill out csg. Drlg to 3-16-88 - Depth 1022' MW 9.8 Drlg 12-1/4" hole. 3-17-88 - Depth 1574' MW 9.5 Drlg to 1574'. POH to run csg. 3-18-88 - Depth 1574' MW 9.5 Run 9-5/8" 53.5# N-80 csg to 1574'. Cemented same to surface w/850 sx. Set slips. ND diverter. 3-19-88 - Depth 1574' NU BOPE and Test. RIH to FC. 3-20-88 - Depth 1579' MW 9.7 Drl out to FS. Test csg. Change out mud system to "New Drill". Drill out shoe plus 5'. POH. PU core bbl. 3-21-88 - Depth 1657' MW 9.7 Coring #1 1579' to 1597'. Core #2 1597' to 1628'. Core #3 1628' to 1657'. Had full recovery on all. RIH for DST #1 on LCU interval. 3-22-88 - Depth 1657' MW 8.7 Set DST pkr in 9-5/8" csg. Displace test string w/Ns. Close CIP. Perform DST #1. Reverse out. POH. RIH w/blt ream to 1657". POH to rerun DST. DST #1 tool plugged. RIH for DST #2 on same interval. Perform DST no flow to surface. 3-23-88 - Depth 1840' MW 10.1 POH w/DST tools. RIH to drill ahead. DST #2 was a valid test. Dropped Bit and BHA in hole when elevators came unlatched. RIG. Screw into fish. POH. Recovered all of fish. RIH to drill ahead. Drlg to 1840'. 3-24-88 - Depth 2102' MW 10.1 Drlg 8-1/2" hole to 2090'. POH for core bbl. RIH for core #4 from 2090' to 2190'. Core bbl jammed. POH. Had full recovery. RIH w/drlg assy. 3-25-88 - Depth 2227' MW 10.1 Drlg to 2150'. POH for core bbl. Cut core #5 2150' to 2180'. Cut core #6 2180' to 2200' - jammed. POH. Cut core #7 2200' to 2227'. 3-26-88 - Depth 2380' MW 10.2 Cut core #8 2227' to 2257'. Cut core #9 2257' to 2287'. RIH w/drlg assy. Ream cored interval. Drlg. 3-27-88 - Depth 2250' MW 10.2 Drlg to 2550'. POH to log. Logging. 3-28-88 - Depth 2564' MW 10.1 Finish logging. RIH. Drlg to 2564'. POH to run 7"csg. 3-29-88 - Depth 2564' MW 10.1 Rw 7"'~ N-80 csg to 2564'. Cemented 7" csg w/85 sx "G"'/'Set csg slips. PU BOPE, RIH w/bit and scraper. 3-30-88 - Dep 2512' PB MW 10.2 Inject waste mud down 7"x9-5/8" annulus, displace hole w/NACL-NABR completion fluid. POH. RU to log and perforate. Run gauge ring/junk bskt. Run CBL. Cbl indicated poor bond. Shot squeeze perfs 2158' to 2160'. RIH w/squeeze packer. Attempt to breakdown squeeze perfs with 1500 psi surface pressure and 10.2# gradient fluid in hole w/o success. POH w/pkr. RU to resume perforating for production. 3-31-88 - PB 2512' MW 10.2 Shot production perfs. RIH w/bit & scraper to 2512'. POH. Run 4-1/2 tbg completion assembly. Arcticpak 9- 5/8" x 7"annulus. Run 2-3/8" production tbg. 4-01-88 - PB 2512' Test 2-3/8" tbg to 2200 psi ok. ND BOPE. NU and test Xmas tree. Displace 2-3/8" tbg w/N2. Set pkr and test same. Sheared open circulation sleeve above pkr. Displace 4-1/2" x 2-3/8" and 4-1/2" x 7" annulus with 60/40 glycol water. Rig released at 1600 hrs 3-31-88. Move to NeB #5. 2 N .S .B. LER~ 6 NELL NO. ~ 1573.0 - 1620.0 TEST NO. TEOTED [NTERVRL LEGAL L(X;ATION ~C.- TNP, - RNG, BRRRDN GR-~ FIELD FIELD I RRER BRRRDU COUNTY BRRRDW GRS FIELD DEVELDPF~NT ..... LEA~E ONNER/COCf~RNY NAME NORTH 8RUSE N13:___815. DEPTH:1553.0 BLRNKED OFF: NO HOUR OF CLOCK: 24 ....... pRESSURE TIME ID DESCRIPTION _ - TYPE RE:pORTEDI CI4L ~m_,I_I:t'I'E:D REPORTED ,., R INITIAL HYDROSTATIC 744 761.2 ,, B INITIAL FIRST FLOW 775 764.7 18.0 17.7 F C FINAL FIRST FLOW 683 673.3 _ ,, C INITIAL FIRST CLOSED-IN 663 673.3 32.0 30.4 C D FINAL FIRST CLOSED-IN 663 673.4 ,, ,, E INITIAL SECOND FLOW 663 673.4 BO .0 B1.8 F F FINAL SECOND FLOW 94 93.1 ... F INITIAL SECOND CLOSED-IN 94 93.1 120.0 130.8 C G FINAL SECOND CLOSED-IN 101 119,2 -- H HYDRO. BEFORE REVERSING 751.5 · I MAXIMUM REVERSING 1005.2 , J FINAL HYDROSTATIC 754.8 ,. GAUGE NO: 218 DEPTH:IS53.0 BLANKED OFF: ND HOUR OF CLOCK , , ID DESCRIPTION PRESSURE TIME TYPE A ~TN ]:TIRL HYDROSTATIC 7_l.5 73,3. ~ B INITIAL FIRST FLOW 746 736.9 18.0 17.7 F C FINAL FIRST FLOW 638 641.3 C INITIAL FIRST CLOSED -IN 638 641.3 32.0 30.4- C B FINAL FIRST CLOSED-IN 630 644.5 E INITIAL SECOND FLOW 630 644.5 6O .0 61.8 F F FINAL SECOND FLOW 62 72.3 F INITIRL SECOND CLOSED -IN 62 72.3 120.0 130.8 C B FINAL SECOND £LOSEB-IN 93 99.9 H HYDRO. BEFORE REVERSING 731.5 ! MAXIMUM REVERSING 977.2 J FINAL HYDROSTATIC 726.1 _ L L GAUGE NO: 253 DEPTH :1553.0 BLANKED OFF: NO HOUR OF £LOCK :.__25_ ID DES£R IPTION PRESSURE TIME TYPE ,,, REPORTED J CRLCULRTED REPORTED I CIqLCUI. FITED R INITIRL HYDROSTRTIC B INITIRL FIRST FLD~J 18.0 F C FINRL FIRST FLOW C INITIRL FIRST CLOSED-IN 32.0 C D FINRL FIRST CLOSED-IN E INITIRL SECOND FLOW GO .0 F F FINRL SECOND FLOW F INITIRL SECOND CLOSED-IN 120.0 C G F INRL SECOND CLOSED-IN H HYDRO. BEFORE REVERSING I MRXIMUM REVERSING J FINRL HYDROSTRTIC EQUIPMENT & HOLE DRTR TICKET NUMBER~ FQRMRTION TESTED~ LO~ER CRETACEOUS NET PRY I ftl , 47.0 [1573'-1620'1 DRTE: ~ TEST NO: ~.~ , QRO$~ TE~TED FOOTRGE: 47.0 RLL DEPTH~ MERSURED FROM: KELLY BUSHING TYPE D~T: CR~ED HOLE CASING PERFS. (~t] .. OPEN HOLE HALLIBURTON CAMP HOLE OR CASING SIZE I in l: 9,685 NORTH 5LORE ELEVATION I~tl ~ 6.0 TOTAL DEPTH I~tl~ 1620.0 JOHN MIZE RACKER DEPTHIS~ Irtl: i5~ TESTER: ~ FINAL SURFACE CHOKE l inl~ 0.1~500 BOTTOM HOLE CHOKE i inl: 1.750 ..... WITNESS: MUD WEIGHT (]b/9a]): 9.40 - MUD VISCOSITY (~eo): E~TIMRTEQ HOLE TEMP. (°F]: 30 DRILLING CONTRRCTOR: ~RRCE DRILLIN~ RZ~ #211 ACTUAL HOLE TEMP. I'FI: _40 ~ r t ,.., , , ,,. , FLUID PROPERTIES FOR SRMPLER DRTR RECOVERED MUD & WRTER SOURCE RESISTIVITY CHLORIDES PmiBRT ~URFRCE: ~ ~~ PP~ ~ OF OIL: ~ ~ 'F ppm ~ OF WRTER: ~ ~'F ~ OF MUD: ~ ~'F ppm ...... ~ ~'F pp~ TOTRL LIQUID ~: , .,,. , , HYDROCRRSON PROPERTIES CUSHION DRTR OIL GRRVlTY I °RPII: © ~'F TYPE RMOUNT WEIGHT QRS/OIL RRTIO Itu .~t, per bb]l: NITROGEN ;SEF1 QR~ QRRVlTY: ,, , ,,, RECOVERED: NITROGEN CUSHION NOTE: RECOVEREO NO GA6 WHILE REVER~ING - ONLY HERYY , ,,, REHRRK S: [1] TESTING OPEN HOLE BELOW CASING l1573'-lG20'J. [2) NO DOWN HOLE VALVE - ALL CLOSED INS WERE VIA SURFACE VALVE. [3] RULLED NEGATIVE DRRWDOWN OF 749.69 RSI RT 1537' [41 GAUGE #253 DID NOT RECORD PRESSURE. [5] TEMPERATURE OF 40 DEGREE5 SHOWN IN RERORT R5 RERORTED BY TESTER. TEMPERATURE RECORDER READING WAS 124 DEGREES RT 1553' TYPE & SIZE MEMSURING DEVICE: J TICKET NO: 49589800 ,_ , , SIZE PSI MCF BPD 3-22-88 ......... 0225 B/6~' ?00 0 0 PULLED NEGRTIVE DRRWDOWN OF 7~9.G9 PSI RT 1537' . , , ....... 02~3 CLOSED WELL RT SURFRCE ., 0315 615 0 0 OPENED WELL 0~15 29 CLOSED WELL ~T SURFACE 0615 OPENED BYPASS ~ND REVERSED OUT .. ............. ......... ................. 't , · ................. ....... ,. ,,, ..... .... ,. ,. ,,, ........ .... , ........ ,1 ..... ....... TICKET NO~ 49589800 CLOCK NO: 21188 HOUR: FIRST FLOW I 0,0 764,7 2 2,0 7~1,8 -23,0 3 ~.0 732,3 -9,4 4 B .0 715.9 -16.4 s 8.0 706 ,B -~ . 1 B 10.0 BO2.8 -14..0 7 12.0 B85 ,S -B ,8 8 14.0 B81 .? -4. .3 9 lB .0 677.5 -4..1 10 17.7 673.3 -4-.3 FIRST CLOSED-IN ! 0.0 573.3 :~ 2..0 B?3,3 0,0 ,4 4..0 B73.3 0.0 4 B .0 573.3 0.0 .5 8.0 673.4. 0.2 S lO,O B?3.~ 0.2 ? 12,0 673.4. 0.2 8 14. .0 B73.4- 0,2 9 lB ,0 673.4. 0,2 10 18,0 673,4. 0,2 11 20.0 673,4. 0.2 12 22.0 573,4. 0.2 13 24. .0 B73.4 0.2 14 26 .0 673.4. 0.2 15 28.0 573,4- 0.2 lB 30.0 573.4. 0,2 17 30.4. 673,4. 0.2 I .B 0 .ggg 3.2 0.73g 4..5 0.598 5.5 0.50B B. 4- O, 4-4-2 7.2 0,394. 7 ,8 0. 355 8.4 0,324 8.9 0.298 9.4. O. 275 S .8 0.257 10,2 0.24.0 10.5 0,225 10 .g 0,213 11 .2 0.202 11 .2 O. 199 SECOND FLOW GRUGE NO: 215 DEPTH: 1553.0 F F HZNUTE$ J PRES~URE, J N~ 5EEOND FLOW - CONTINUED 18 51.0 120.S -12,2 19 54.0 111 ,B -B .2 20 57.0 101 .8 -9 .9 ~1 SO .0 94.7 -7 .0 22 51.8 93.1 -1 .5 ,, m I 0.0 B73.4. 2 3.0 BO5.2 -BT ,2 3 B .0 538,4. -67 .B 4 g. 0 485.8 -52,B S 12,0 434..7 -51,1 S 15,0 391 .g -4.2 .B 7 1B.O 354. .3 -37 ,B 8 21 .0 314,3 -40.0 g 24., 0 284,8 -29,5 10 27.0 257.1 -27.7 11 30.0 23~. 7 -22.4. 12 33.0 209.7 -25. i 13 36.0 190,7 -15.0 i, 39,0 173,2 -17 ,S 15 42.0 157,5 -15,7 IB 45,0 143,2 -14,3 17 48,0 133.1 -10,2 SECOND CLOSED-IN ! 0.0 93.1 2 5.0 92.5 -0 .B 3 10,0 93 .B 0.5 4. 15.0 S5 .? 2,5 5 20.0 97.2 4..1 6 25.0 98.9 5.8 ? 30.0 100,2 7.1 8 35 .o lol .9 8 .B 9 4.0.0 102 .g g .7 lO 4.5.0 104. .+ 11.3 ll 50,0 lOB .0 12 .g 12 55.0 107 ,4. 14. .3 13 SO.O 108.5 15 .+ 1¢ B5,0 109 .B IS .5 tS 70.0 llO.S 17 4. 16 75 .0 111 .3 18.2 17 80.0 113.4. 20.2 18 85,0 113.8 20,7 is 90.0 114. .9 21 .B 2o 95.0 115.7 22 ,B 21 100.0 116.0 22.9 22 105.0 115,0 22. B 23 110.0 115.0 22.9 24 115.0 116 .B 23,7 25 120,0 117 .8 24. .6 25 125.0 11B. 5 25.4. 27 130 .B llg .2 26.0 4.7 8.8 12 .$ lB .0 19.0 21.8 24-.3 26.6 28.7 30.7 32.5 34,2 3?. 2 38,6 4.1.1 42.2 4-3.3 4.+ .3 4?5 3 4-B 2 4.7 0 4.7 8 4.8 B 4.B 5 .229 0.954 0.79B 0.6S7 0 .B22 0.562 0 515 47B 0 4.4.2 414. 388 367 34-7 330 .31~ O. 300 O. 287 .275 .264. O. 254. .245 O. 235 O. 228 .221 214. O. 206 REMRRKS: NOTE: TIME gIVEN AND TIME RECORDED FOR SECOND CLOSED IN PRESSURE DOE5 NOT AGREE. TICKET NO: 49589800 CLOCK NO: 22899 HOUR~ FIRST FLOW 1 2 3 5 8 lO 0,0 2 0 4- 0 B 0 80 10 0 12 0 14. .0 lB ,0 l? .? 736.9 713,5 -23.4 704-. 1 -9.4 586,9 -17.2 575,5 -11 .2 553.1 -12.5 $54. ,5 -8.6 64-9,4- -S. 1 645.0 -4- ,5 54-1.3 -3.1 1 3 $ 7 8 lO 11 12 13 15 16 17 FIRST CLOSED -IN 0.0 54-1 2,0 64-1 4, ,0 64,1 5.0 64.2 8.0 54-2 10.0 54.2 $ 12 0 54.3 1 14. 0 64-3 6 lB 0 64-3 7 18 0 6,%3 7 2O 0 64-4 1 22 0 64-4. .2 24- 0 64-4-. 4. 26 0 54-4-. 7 28 0 54-5.0 30.0 64.5.0 30.4. 64-4-. 5 .3 4- 0.2 4- 0.2 2 8 1.5 1,5 1.8 2.3 2.5 2.5 28 29 31 34- 37 37 3.2 E I 0.0 2 3,0 3 B.O s 12,0 B 15.0 ? lB .0 8 21.0 9 24.0 lo 27.0 1! 3O .0 12 33.0 13 3B .0 1, 39,0 15 42.0 lB 45.0 ~.NDTE: TIME gIVEN SECOND FLOW 644. .5 585.9 -54. ,7 522.3 -67,6 4-65.9 -56.4 415.4 -50.5 370.2 -45,2 330.1 -40.2 296.8 -33,3 265.3 -31.6 237.1 -28,1 212.6 -24.5 189.4 -23.3 168.6 -20 .B 150.6 -18.0 134.7 -15 .B 121.9 -12.8 110.0 TIME RND GRUGE NO: 216 DEPTH: 1553.0 SECOND FLOW - CONTINUED 18 51 .0 9B .3 -10.8 ls 54-.0 Bi .0 -8.3 20 57 .0 82.1 -8.9 21 60.0 7B ,0 -6. I F 22 61.8 72.3 -3 7 1 B 0 993 33 0736 4- S 0 595 5 5 0 506 5 4. 0 44.4. 7 2 0 394 ? 8 0355 84. 0324- 8 9 0 298 9 + O. 276 9 8 0,257 10 2 0.24.0 10 5 0.225 10 9 0.213 11 2 0.202 11 2 0,199 SECOND CLOSED-IN I 0,0 72.3 Z 5.0 72.6 0.3 3 10.0 74,0 1 .7 4 15.0 75.7 3.4 S 20.0 77.3 5.0 6 25.0 78.2 5.5 ? 30.0 79.5 7.2 8 35.0 B1.2 8 .B 9 4-0.0 82.7 10.5 1o 45.0 83.5 11,3 11 50,0 85.4 13,1 12 55.0 85 ._9 13 .[5 i3 BO.O 87.5 15.5 Z4 65 .0 BB.4. 16.1 15 70.0 B8.8 16 5 iS 75.0 8B.B 16.6 17 80.0 90.2 18.0 3.8 B5.0 90.9 1B.6 .1.9 BO .0 BI .8 19.5 2o 95.0 93.7 21 .4 21 100.0 .94. .9 22.7 Z2 105.0 '35,1 22 ,B 23 110.0 BE; .0 23 .B 24 115 .0 97 .1 24- .8 25 120.0 98.0 25 B Z6 125.0 98.7 26,4 27 130.8 _95,9 27 .7 -11.9 RECORDED FOR SECOND CLOSED IN PRESSURE 4,7 1. 228 B .9 0.951 12 .B 0.753 lB .0 0.657 15.0 0.622 21.8 0.552 24, .3 0.515 26, B O, 4.'75 28.7 O. 4.42 30 7 0.414 32 S 0.389 34 2 0.367 35 B O. 3%7 37 2 0. 330 38 6 O. 314 39 9 0,300 41 I O. 287 42 2 0.275 43 3 0.264. 44 3 0.254- 4-5.3 0.24-5 4[5.2 0.23B 4-7.0 O, 228 47,8 0,221 4-8,6 0.214 45.5 0.2O6 TICKET NO. 49589800 0 .D. I .O. LENGTH DRILL PIPE ...................... DRILL COLLRRS CROSSOVER JRR ............................. £ROS$OVER ....................... CRO$SrlVER ....................... RTTS C.IRCULRTING VRLVE .......... RTTS PRCK, ER ..................... CROSSOVER ....................... BUNDLE CI:IRRIER .................. 3. SO0 2 , 385 134.1 . 3 4., 825 2. 000 5. 000 2.135 5. 000 I, 750 5. 000 2.135 6. 120 3. 000 6.120 3. 000 8. 250 4., 000 B, 120 3. 000 5. 000 2. 500 1BB .4- 1.0 5.0 0.7 0.9 ,.3.7 B.5 8.0 TOTRL DEPTH EOUIPMENT DRTR DEPTH 1537.0 154.3.0 1553.0 1620,0 EQUATIONS FOR DST GAS WELL ANALYSIS Indicated Flow .001637 Q, T kh= Capacity m md-ft Average Effective k - kh Permeability h Skin Factor Damage Ratio S= 1.151 [ m(P*)'m(P')-LOG (k(t/60) )+ 3.23 ] m b I~c~.~ DR= m(P*) - m(P,) m(P*) - m(P,) - 0.87 mS md Indicated Flow Rate (Maximum) Indicated Flow Rate (Minimum) Approx. Radius of Investigation Q~ m(P*) AOF, = m(P') - m(P,) V / m(P*) AOF~ = Q~ m(P*)- m(P,) ,~/k (t/60) 0.032 V 7~' ~-~ MCFD MCFD 1296-R6 Company : North Slope Borough Nell : NSB #6 Location : Sec 6, T21N, R17W Co,State : North Slope, Alaska CORE CORE LABORATORIES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasDate : 23-Hay-88 Coring Fluid : WBH API No. : Elevation : Analysts: TLS;TDT;RGC ANALYSIS RESULTS SATURATXON ........................... SAMPLE DEPTH PERMEABILITY POROSITY ~ .......... GRAIN DESCRIPTION NUMBER (HORIZONTAL) (HELIUM) (PORE VOLUME) DENSITY Kair OIL WATER 1581.0 - 1597.0 Core dX Cut 16' Recovered 16' 101 1581.3 15.2 0.2 94.7 2.73 Mdst, m~lkgy, slty, tr mica, tr pyr, 102 1582.5 14.0 0.5 94,8 2.72 Mdst, mdkgy, $1ty, tr mica, pyr, lis 103 1583.5 18.8 0.5 92.4 Z.76 Mdst, mdkgy, slty, tr mica, tr pyr, lis, slcalc, carb frag$ ** 104 1584.5 19.5 0.2 94.3 2.71 Mdst, mdkgy, slty, tr mica, tr pyr, 105 1585.5 14.2 1.2 85.2 2.89 Mdst, mdgy, slty, tr mica, tr pyr, 106 1586.9 18.8 0.4 97.7 2.71 Mdst, mdgy, slty, tr mica, pyr, 107 1587.3 18.5 0.0 95.2 2.70 Mdst, mdgy, slty, tr mica, pyr, lis ** 108 1588.5 19.3 1.0 98.8 2.70 Ndst, mdgy, slty, tr mica, pyr, 109 1589.9 18.8 1.0 98.3 2.72 Mdst, mdgy, slty, tr mica, pyr, 110 1590.2 18.1 1.0 94.6 2.70 Mdst, mdgy, slty, tr mica, pyr, 111 1591.5 20.7 1.5 94.2 2.73 Mdst, mdgy, slty, tr mica, pyr, 112 1592.8 19.7 1.3 94.2 2.69 Mdst, mdgy, slty, tr mica, tr pyr, 113 1593.5 20.1 0.3 94.7 Z.70 Ndst, mdgy, slty, tr mica, pyr, 114 1594.2 17.9 0.5 93.3 2.70 Ndst, mdgy, slty, tr mica, pyr, 115 1595.2 19.9 5.3 89.6 2.69 Mdst, mdgy, slty, tr mice, pyr, 116 1596.7 16.7 0.3 93.Z 2.69 #dst, mdgy, slty, tr mica, pyr, lis ** 1597.0 - 1627.0 Core dZ Cut 30' Recovered 30' 201 1597.5 18.6 0.4 93.0 2.73 Mdst, mdkgy, mod w cons, mica, tr pyr, 202 1598.4 17.1 0.6 90.5 2.79 Mdst, mdkgy, mod w cons, mica, tr pyr, lis ** 203 1599.4 19.9 0.8 89.7 2.70 Hdst, mdkgy, mod w cons, mica, tr pyr, 204 1600.6 19.0 0.4 92.1 2.72 Mdst, mdkgy, mod w cons, mica, tr pyr, lis ** 205 1601.5 18.0 0.0 92.0 2.71 Mdst, mdkgy, mod w cons, mica, tr pyr, Z06 1602.3 18.6 1.1 89.2 Z.70 Mdst, mdkgy, mod w cons, mica, tr pyr, 1 - I Company : North Slope Borough kle11 : NSB #6 CORE CORE LABORATORIES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasDate : 23-Hay-88 ANALYSIS RESULTS . r ................. ~ ......... SATU~T'iON .................. SAMPLE DEPTH PERMEABILITY POROSITY - -- GRAIN DESCRIPTION NUMBER (HORIZONTAL) (HELIUM) (PORE VOLUME) DENSITY Katr OIL ~/ATER ft md ~ ~ ~ gm/cc 207 1603.5 21.5 41.0 26.0 2.69 SS, ltgy, vf-fgr, pred Vfgr, w srtd, fri, slcalc 208 1604.9 22.0 32.0 39.0 2.68 SS, ltgy, vf-fgr, pred fgr, 209 1605.5 24.8 31.7 30.3 2.69 SS, ltgy, vf-fgr, pred vfgr, w srtd, fri, slcalc 210 1606.5 44.9 23.4 43.0 Z3.7 Z.69 SS, ltgy, vf-fgr, pred vfgr, w srtd, fri, slcalc 211 1607.5 6.85 20.6 45.6 21.4 2.70 SS, ltgy, vf-fgr, pred vfgr, w srtd, fri, slcalc 212 1608.6 20.6 45.0 21.5 2.68 SS, ltgy, vf-fgr, pred vfgr, 213 1609.6 20.6 19.5 45.1 23.0 2.68 SS, ltgy, vf-fgr, pred vfgr, Z14 1610.6 35.6 19.7 39.2 g4.2 2.66 SS, ltgy, vf-fgr, pred vfgr, Z15 1611.5 10.9 15.6 29.6 29.8 2.68 SS, ltgy, vf-fgr, pred vfgr, mod w srtd, w cons, calc 216 1612.4 1.51 11.5 40.0 24.6 2.69 55, ltgy, vf-fgr, pred vfgr, mod w srtd, ~ cons, calc 217 1613.4 17.1 0.5 93.7 2.69 Mdst, mdkgy,mod 218 1614.3 18.4 0.5 93.0 2.68 Mdst, edkgy,mod 219 1615.6 17.9 0.4 94.8 2.69 Mdst, mdkgy,mod 220 1616.5 17.3 0.8 92.6 2.73 #dst, ltgy, pcons, slcalc, tr mica, 221 1617.5 18.5 1.6 96.5 Z.67 Mdst, mdkgy, mod 222 1618.5 19.8 0.4 87.6 2.70 Mdst, ltgy, slty, slcalc, mod w cons, tr mica, tr pyr, 223 1619.5 0.46 18.4 0.4 93.6 2.68 Ndst, mdkgy, mod w cons, slcalc, mica, tr pyr, lis ** 224 1620.5 18.2 0.4 93.2 2.68 Mdst, ~dkgy, mod 275 1621.5 19.0 0.2 89.2 2.68 Mdst, mdkgy, mod w cons, 226 1622.5 16.5 0.2 90.5 2.71 Ndst, mdkgy, mod 2Z7 1623.3 18.1 0.0 88.4 2.69 Mdst, mdkgy, mod 228 1624.7 19.8 0.2 87.8 2.69 Mdst, mdkgy, mod 229 1625.7 18.0 0.0 91.3 2.76 Ndst, mdkgy, mod w cons, mica, tr pyr, lis ** 230 1626.8 17.3 0.3 90.9 2.67 Hdst, mdkgy, slty, mod 16Z7.0 - 1655.4 Core ~3 Cut 28' Recovered 28.4 301 16Z7.5 19.5 O.S 9Z.3 Z.71 Hdst, mdkgy, mod cons, $1calc, tr mica, tr pyr, 302 1628.5 Z7.Z 17.2 0.3 86.8 2.68 Mdst, mdkgy, mod cons, slcalc, tr mica, tr pyr, , , 1- 2 Company : North Slope Borough Well : NSB #$ CORE CORE LABORATORIES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasOate : 23-Hay-88 ANALYSIS RESULTS SATURATION SAMPLE DEPTH PERMEABILITY POROSITY ........ GRAIN OESCRIPTION NUMBER (HORIZONTAL) (HELIUM) (PORE VOLUME) DENSITY Kair OIL gATER _. ft mci % % % gm/cc 303 1629.5 19.4 0.4 82.8 Z.70 Mdst, mdkg~, mod cons, slcalc, tr mica, tr pyr, lis ** 304 1630.5 15.7 0.7 97,9 2.69 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis ** 305 1631.5 17.7 0.9 89.5 2.75 Mdst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 306 1632.4 15.7 0.8 90.9 2.70 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis ** 307 1633.5 15.5 0.4 92.6 2.69 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 308 1634.5 19.0 0.5 82.1 2.69 Hdst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 309 1635.2 15.8 0.9 93.9 2.67 #dst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 310 1636.5 O.Zl 6.7 1.8 91.9 Z.72 SS, ltgy, vf-fgr, pred vfgr, w srtd, w cons, calc 311 1637.4 3.60 13.9 0.6 95,0 2.75 Ndst, m~l dkgy, mod cons, slcalc, tr mica, tr pyr, 312 1638.2 17.7 0.6 87.6 2.71 Mdst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis ** 313 1639.5 14.9 0.6 98.3 2.71 Mdst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 314 1640.5 17.1 0.3 89.6 2.70 Mdst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis ** 315 1641.5 18.4 0.2 93.2 2.67 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 316 1642.5 17.0 0.0 97.6 2.67 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis 317 1643.5 22.6 18.4 0.0 89.5 2.74 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis 318 1644.5 22.2 0.0 97.4 2.67 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 319 1645.5 15.4 0.3 97.8 2.74 Ndst, m~lkgy, mod cons, slcalc, tr mica, tr pyr, 320 1646.5 6.48 15.7 0.0 93.4 2.66 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis 321 1647.5 17.0 0.4 96.9 Z.63 Mdst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis 322 1648.5 189. 22.0 0.3 85.2 2.67 Ndst, mdkgy, mod cons, slcalc, tr mica. tr pyr, 323 1649.5 10.4 15.2 0.0 95.4 2.67 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 324 1650.5 15.8 0.4 95.8 2.69 )Mst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis 325 1651.5 8.40 16.8 0.0 97.1 2.65 I~dst, mdkgy, mod cons, slcalc, tr mica, tr pyr, 326 1652.5 15.9 0.0 96.4 2.66 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis, tr sd 327 1653,7 7.92 16.4 0.0 93.5 Z.71 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis, tr md 328 1654.5 15.7 0.0 91.0 2.77 Ndst, mdkgy, mod cons, slcalc, tr mica, tr pyr, lis, tr md _ _ 1- 3 Company : North Slope Borough Well : NSB #6 CORE CORE LABORATORIES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasOate : 23-Hay-88 ANALYSIS RESULTS SATURAT! ON SAMPLE OEPTH PERMEABILITY POROSITY .... GRAIN DESCRIPTION NUMBER (HORIZONTAL) (HELIUM) (PORE VOLUMF) DENSITY Kair Oil WATER tt ~d % % % g~/cc 2090.0 - 2102.0 Core i~4 Cut 12' Recovered 12' 401 2090.5 14.9 0.4 96.5 2.72 Mdst, mgy, slty, celt, mod cons, tr mica· tr pyr, 402 2091.8 14.2 0.0 98.8 2.72 Mdst, mgy, slty, calc, mod cons, tr mica, tr pyr, 403 2092.5 15.4 0.2 98.7 2.71 Mdst, mgy, slty, calc, mod cons, tr mica, tr pyr, sl 404 2093.6 14.9 0.0 94.0 2.71 Ndst, mgy, slty, calc, mod cons, mica, tr pyr, 405 2094.6 51.7 14.0 0.0 98.8 Z.71 Mdst, mgy, slty, calc, mod cons, tr mica, tr pyr, 406 2095.5 16.7 0.5 93.9 2.72 Mdst, mgy, slty, calc, mod cons, tr mica, tr pyr, 407 2096.5 41.4 13.8 0.0 94.5 2.71 Mdst, mgy, slty, calc, mod cons, tr mica, tr pyr, 408 2097.5 45.8 15.4 0.4 94.5 2.76 Mdst, mgy, slty, calc, mod cons, tr mica, tr pyr, sl 409 2098.5 9.98 13.8 0.0 95.4 2.71 Mdst, mgy, slty, calc, mod cons, tr mica, tr pyr, sl 410 2099.5 89.7 16.4 0.0 94,6 2.70 Mdst, mgy, slty, calc, ~ cons, tr mica, tr pyr, sl lis (ireg spl) 411 2100.5 14.6 0.0 96.3 2.69 Sltst, allY, slty, calc, mod cons, tr mica, tr pyr, 31 412 2101.5 1.84 13.2 0.2 96.9 2.69 Hdst, mgy, slty, calc, mod cons, tr mica, tr pyr, 2151.0 - 2178.1 Core tS Cut 29' Recovered 27,1' 501 2151.4 2.80 12.0 0.0 98.2 2.87 $S, olvgy, vfgr, arg, w srtd, mod cons, abnt mdy lams, sid cat 502 2152.4 4.49 13.8 0.0 98.9 2.68 SS, edkgy, vfgr, varg, w srtd, mod cons, tr calc, abnt ecly lam (treg spl) 503 2153.4 10.9 15.8 0.0 97.6 2.65 SS, edkgy, vfgr, erg, w srtd, ~od cons· abnt mdy lams (ireg spl) ~S04 2154.5 9.36 13.6 0.0 94.6 2 68 SS, mdkgy, vfgr, erg, w srtd mod cons abnt mdy lams (ireg spl) 1505 2155.6 3.00 13.7 0.0 95.9 2.67 Mdst, olvgy, abnt vfgr sd, tr calc, mod cons, bioturb ;SO6 2156.5 2.51 12.5 0.0 96.1 2.68 Ndst, mdkgy, v sdy, tr calc, mod cons, abnt vfgr sdy lams, bioturb -,*~ ~507 2157.5 3.55 13.7 0.0 90.2 2.70 SS, mltgy, vfgr, erg, w srtd, mod cons, slcalc, tr pyr, glauc r. :S08 2158.4 3.84 13.8 0.3 89.6 2.70 SS, ltgy, vfgr, erg, w srtd, mod cons, slcalc, tr pyr, glauc ..... ~*'09 2159.4 4.71 14.1 0.0 92.Z 2.69 SS, ltgy, vfgr, erg, w srtd, mod cons, slcalc, tr pyr, glauc ~. ~T~'0 2160.4 1.52 12.8 0.0 91.8 2.67 SS, ltgy, vfgr, erg, w srtd, mod cons, slcalc, tr pyr, glauc '~1~' 2161.5 3.75 14.2 0.0 gO.l 2.69 SS, ltgy, vfgr, erg, w srtd, mod cons, slcalc, tr pyr, glauc 512 2162.5 2.90 13.8 0.2 92.9 2.69 SS, ltgy, vfgr, erg, w srtd, mod cons, slcalc, tr pyr, glauc 1 -4 Company : North Slope Borough Well : NSB ~6 CORE CORE LABORATORIES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasDate : 23-Hay-88 ANALYSIS RESULTS SATURATION SAMPLE DEPTH PERMEABILITY POROSITY ...... .GRAIN DESCRIPTION NUMBER (HORIZONTAL) (HELIUM) (PORE VOLUME) DENSITY Kair OIL WATER ft md % % % gm/cc 513 2163.6 952. 13.9 0.0 96.0 2.76 SS, ltgy, vfgr, erg, w srtd, mod cons, slcelc, tr pyr, gleuc 514 2164.4 3.17 15.8 0.0 99.8 2.69 SS, ltgy, vf-fgr, pred vfgr, slty, w srtd, fri, calc, glauc, 515 2165.5 132. 13.4 0.0 94.1 2.69 SS, ltgy, vf-fgr, pred vfgr, slty, w srtd, fri, calc, gl&uc, 516 2166.5 5.09 13.2 0.0 93.8 2.69 SS, ltgy, vfgr, slty, w srtd, fri, talc, glauc, lam 517 2167.4 9.12 13.8 0.0 93.5 2.69 SS, ltgy, vfgr, slty, w srtd, frt, calc, glauc, lam, tr pyr 518 2168.5 5.76 13.5 0.0 93.0 2.68 SS, ltgy, vfgr, slty, w srtd, frt, calc, glauc, lam 519 2169.5 7.71 14.6 0.0 94.9 2.70 SS, ltgy, vfgr, slty, w srtd, frS, celt, glauc, lam 520 2170.5 3.66 16.4 0.0 92.5 2.68 SS, ltgy, vfgr, slty, w srtd, frt, calc, tr glauc, lam 521 2171.4 6.10 14.0 0.0 92.7 Z.70 SS, ltgy, vfgr, slty, 522 Z172,5 Z.79 12.6 0.0 94.3 Z.68 SS, ltgy, vfgr, slty, w srtd, 523 Z173.5 1.88 14.3 0.0 99.7 Z.67 SS, ltgy, vfgr, slty, 5Z4 2174.5 1.58 13.6 0.0 97.3 2.68 SS, ltgy, vfgr, slty, w srtd, frJ, calc, tr gl&uc, indlst l&m 525 2175,5 2.06 13.9 0.0 97.0 2.68 SS, ltgy, vfgr, slty, 526 2176.7 1.12 14.3 0.0 95.3 2.67 SS, ltgy, vfgr, slty, w srtd, frt, calc, tr glauc, indist lam 527 2177.4 4.92 15.2 1.2 94.2 2.68 SS, ltgy, vfgr, slty, w srtd, frt, calc, tr glmuc, indist lmm 2180.0 - 2199.3 Core t6 Cut 20' Recovered 19.3' 601 2180,3 103. 18.5 0.0 81.8 2.68 SS, ltgy, vfgr, slty, 602 2181,6 19.2 20.8 0.0 88.4 2.68 SS, ltgy, vfgr, slty, w srtd, frt, calc, tr glauc, indtst 603 2182.4 4.87 18.4 0.0 96.9 2.69 SS, ltgy, vfgr, slty, 604 2183.4 125. 19.9 0.0 94.9 2.69 SS, ltgy, vfgr, slty, w srtd, frt, calc, tr glauc, indtst lmm 605 2184.4 1409. 29.2 0.0 93.6 2.70 SS, ltgy, vfgr, $1ty, 606 2185.4 2Z.6 0.0 88.9 2.67 SS, ltgy, vfgr, slty, 607 2186.5 27.0 0.0 87.3 2.74 SS, ltgy, vfgr, slty, w srtd, frt, calc, tr glauc, tndist lam 608 2187.5 4.94 12.6 0.5 90.1 2.69 SS, ltgy, vfgr, slty, w srtd, frt, $1c&lc, tr glauc, indist 609 2188.5 15.2 0.0 93.3 2.71 SS, ltgy, vfgr, slty, w srtd, fri, slcalc, indist lam 610 2189.6 3.09 18.0 0.4 96.5 2.68 SS, ltgy, vfgr, slty, w srtd, frt, slcalc, tr glauc, indist lam 611 2190.4 12.4 20.3 0.0 88.9 2.71 SS, ltgy, vfgr, slty, w srtd, fri, slcalc, tr glauc, indtst lmm 1 -5 Company : North Slope Borough Well : NSB #$ CORE CORE LABORATORZES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasOate : 23-gay-88 ANALYSTS RESULTS ...... sATuRATION ............................... SAMPLE DEPTH PERMEABILITY POROSITY GRAIN DESCRIPTION NUMBER (HORIZONTAL) (HELIUM) (pORE VOLUME) DENSITY Kair OIL WATER ft md % % % gm/cc 612 2191.5 18,2 0.0 90.7 2.67 SS, ltgy, vfgr, slty, w srtd, fri, slcmlc, tr glauc, indist lam ** 613 Z192.5 23.7 20.1 0.0 83.5 2.68 SS, ltgy, vrgr, slty, w srtd, fri, slcalc, tr glauc, indist lam 614 Z193.5 3.31 13.8 0.0 87.5 2.68 SS, ltgy, vfgr, slty, w srtd, irt, slc&lc, tr glauc, indist lam 615 2194.5 9.19 Z1.2 0.0 85.2 2.67 SS, ltgy, vfgr, slty, w srtd, fri, $1c&lc, tr glauc, indist lam 616 2195.5 3.Z6 16,3 0.0 91.6 Z.68 SS, ltgy, vfgr, slty, w srtd, frt, slcalc, tr glauc, indist lam 617 2196.4 6.06 13.7 0.0 88.8 2.68 SS, ltgy, vfgr, slty, w srtd, fri, $1c&lc, tr glauc, indi$t lam 618 2197.6 5.08 19.1 0.0 82.8 Z.69 SS,.Itgy, vfgr, slty, w srtd, fri, slcalc, tr glauc, indtst lam 619 2198.7 3.90 18.4 0.6 84.5 2.69 SS, ltgy, vfgr, slty, w srtd, fri, slcalc, tr glauc, indist lam 2200.0 - 2228.9 Core #7 Cut 28' Recovered 28.9' 701 ZZO0.6 6.17 18.4 0.0 90.1 2.67 SS, ltgy, vfgr, w srtd, slfrt, calc, tr glauc, indist lam 702 2201,6 11.8 19.9 0.0 92.Z 2.74 SS, mdgy, vfgr, arg, w srtd, slfri, calc, tr glauc, indist lam 703 2202.5 274. ZS.9 0.0 89.9 2.69 SS, ltgy, vfgr, w srtd, rri, talc, glauc, tr pyr, indist lmm ** 704 2203.7 143. 21,3 0.0 90.8 2.68 SS, ltgy, vfgr, w srtd, slfrt, talc, glauc, tr pyr, indist lam ** 705 2204.5 796. 18.0 0.0 93.4 Z.69 SS, mdgy, vfgr, &rg, w srtd, slfri, calc, glauc, indist lam '* 706 2206.5 0.01 4.9 0.0 96.7 3.16 SItst, mltgy, slcmlc, v w cons 707 2206.5 0.02 5.9 0.0 92.1 3.12 SS, mgy, vfgr, arg, w srtd, slfri, calc, glauc, indist lam 708 2207.4 23.5 22.3 0.0 85.4 2.71 SS. ltgy, vfgr, w arid, slfrt, c&lc, tr glauc, tr pyr, indist lam ** 709 2208.4 203. 19.1 0.0 99.9 Z.69 SS, ltgy. vfgr, w srtd, slfri, calc, tr glauc, tr pyr. tndt$t lam ** 710 2209.4 1.39 12.4 0.0 96.5 2.69 SS, ltgy, vfgr, w srtd, slfrt, cmlc, tr glmuc, tr pyr, tndist lmm 711 2210.5 1.52 15.2 0.0 98.8 2.68 SS, ltgy, vfgr, w arid, slfrt, cmlc, tr gl&uc, tr pyr, indt$t lam 712 2211.5 60.1 22.2 0.0 82.0 2.68 SS. ltgy, vfgr. w srtd, slfrt, calc, tr carb frags, tr glauc 713 Z212.2 1.73 IZ.4 0,0 91.4 2.69 SS, ely, vfgr, w srtd, slfri, c&lc, tr glauc, indist lam 714 Z213.5 16.9 16.4 0.0 92.3 Z.69 SS, ely, vfgr, w srtd, slfrt, calc, tr glauc, indist lam ** 715 2214.6 lg6. 15.0 0.0 95.3 2.68 SS, ely, vfgr, w srtd, slfri, calc, tr glauc, indist lam** 716 2215.5 5.54 15.9 0.0 96.3 Z,70 SS, ely, vfgr, w srtd, slfri, calc, tr glauc, indist lam (ireg spl) 717 2Z16.5 4.38 17.0 0.0 91.2 Z.67 SS, ely, vrgr, w srtd, slfri, calc. tr glauc, indist lam 718 2Z17.5 3.96 14.9 0.0 94.3 2,68 SS, mgy, vfgr, w srtd, slfrt, c&lc, tr gl&uc, indist lam 1 -6 Company : North Slope Borough Well : NSB //6 CORE CORE LABORATORTES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasOate : 23-Hay-88 ANALYSIS RESULTS SATURATION SAMPLE DEPTH PERMEABILITY POROSITY ...... GRAIN DESCRIPTION NUMBER (HORIZONTAL) (HELZU#) (PORE VOLUME) DENSITY Katr OIL WATER tt md % % % gm/cc 719 2218.5 3.44 16,1 0.0 90.2 2.67 SS, mgy, vfgr, w srtd, slfrt, talc, tr glauc, indist lam 720 2219.4 103. 20,7 0.0 86.0 2.68 SS, mgy, vfgr, w srtd, slfrt, calc, tr glauc, indist lam 721 2220.5 17.7 0.0 94.0 2.94 Mdst, mltgy, p cons, sdy, rim ** 722 2221.5 14.3 14.6 0.0 93.9 2.69 SS, mgy, vfgr, w srtd, slfrt, calc, tr glauc, indist lam 723 2222.5 176. 16.4 0.0 97.5 2.69 SS, mgy, vfgr, w srtd, slfrt, cmlc, tr glauc, indist l&m 724 2223.5 8.48 16.3 0.0 96.8 2.69 SS, mgy, vfgr, w srtd, slfri, calc, tr glauc, indist lam, tr pyr 725 2224.1 27.9 17.1 0.0 95.5 2.68 SS, mgy, vfgr, w srtd, slfrt, cmlc, tr glauc, indist lam, tr pyr 726 2225.4 5.29 14.1 0.0 95.3 2.68 SS, ltgy, vfgr, w srtd, sltri, celc, tr glauc, indist 727 2226.5 40,3 9,1 0.0 94.5 3.04 SS, ltgy, vfgr, slty, w srtd, elfrt, v calc, indist lam 728 22Z7.5 16,1 0.0 94.3 2.70 SS, Itgy, vfgr, slty, w srtd, llfri, v calc, indist lmm 729 2228.2 2,89 12,3 0.0 98.0 2.69 SS, ltgy, vfgr, slty, w srtd, slfri, v calc, indist lam, tr glmuc 2228,0 - 2258.0 Cora 18 Cut 30' Recovered 30' 801 2228.5 1.03 14.5 0.0 88.6 2,68 SS, ltgy, vfgr, w srtd, mod cons, v cmlc, tr glauc, indist 802 2229.5 2.06 16.1 0,0 83.9 2.67 SS, ltgy, vfgr, w srtd, mod cons, v celc, tr glauc, tndtst 803 2230.5 1.72 10.9 0.0 88.9 2.68 SS, 1toy, vfgr, w srtd, mod cons, v calc, glauc, indist 804 2231.5 1.44 13.5 0.0 98.0 2.70 SS, ltgy, vtgr, w srtd, mod cons, v calc, tr glauc, tndtst 805 2232.6 1.35 15.0 0.0 94.6 2.79 SS, 1toy, vt-for, pred vfgr, mod w srtd. mod cons, calc, tr glauc, indist 806 2233.5 5.34 13.3 0.0 73.3 2.86 SS, yelgy, vf-fgr, pred vfgr, roms, mod w srtd, w cons, vcalc, glauc, tr pyr 807 2234.5 24.0 0.0 84.0 2.68 SS, ltgy, vt-for, pred vfgr, mod w srtd, sltri, slcalc, tr gl&uc 808 2235,5 25.9 0.0 70.0 2.67 SS, vltgy, vt-fOr, pred for, w srtd, fri, calc 809 2236,6 29.1 0.0 64.0 2.66 SS, vltgy, vt-for, pred for, w srtd. fri, calc, indist lam 810 2237.5 30.0 0.0 71.1 2.72 SS, vltgy, vt-fgr, pred for, $1ty. mod w srtd, fri, c&lc, tndist lam 811 2238.5 23.6 0.0 82.4 2.73 SS, vltgy, vf-fgr, pred fgr, slty, mod w srtd, fri, calc, tndist 812 2239.5 26.6 0.0 67.3 2.69 SS, vltgy, vt-for, pred fgr, w srtd, fri, calc 813 2240.5 12.0 17.7 0.0 98.0 2.68 SS, vltgy, vt-for, pred fgr, w srtd. 51 fri, calc, indist 814 2241.5 26.8 0.0 85.7 Z.66 SS, vltgy, vf-fgr, pred fgr, w srtd, frt, calc 815 2242,5 22.8 0.0 82.8 2.83 SS, vltgy, vt-for, pred for, w srtd, frt. c&lc 1 - 7 Company : North Slope Borough Well : NSB #6 CORE CORE LABORATORIES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasOate : 23-Hay-88 ANALYSIS RESULTS .............................. sATuRatiON ............................................ SAMPLE DEPTH IPERMEAB[L[TY POROSITY ...... GRAIN DESCRIPTION NUMBER (HORIZONTAL) (HELIU#) (PORE VOLUME) OENSITY Kair OIL WATER ft md % % % g~cc 816 2Z43.5 49.1 Z1.6 0.0 86.0 2.67 SS, vltgy, vf-fgr, pred fgr, w srtd, fri, calc, indist lam 817 2244.6 48.6 12.5 0.0 95.5 2,98 SS, vltgy, vf-fgr, pred fgr, w srtd, w cons, calc, indist 818 2245,6 25.6 0.0 83.5 2.69 SS, ltgy, vf-fgr, pred fgr, w srtd, slfri, slcalc, glauc, indist lam 819 2246.5 80.9 23.4 0.0 84.1 2.69 SS, ltgy, vf-fgr, pred fgr, w srtd, slfri, slcalc, glauc, 820 2247.5 203. 24,2 0.0 80.2 2.71 SS, ltgy, vf-fgr, pred fgr, w srtd. slfri, slcalc, glauc, ~ndist lam 821 2248.4 295. 25.8 0.0 80.6 2.68 SS, ltgy, vf-fgr, pred fgr, w srtd, fri, slcalc, tr glauc, tndtst lam 822 2249.5 51.0 22.2 0.0 86.5 2.66 SS, ltgy, vf-fgr, pred fgro w srtd, slfrt, tr glauc, indist lam 823 2250.5 1.35 16.0 0.0 95.5 2.74 SS, ltgy, vfgr, w srtd, mod cons, slc&lc, tr glauc, indist 824 2251.3 2.04 17.1 0.0 99.8 2.71 SS, mltgy, vf-fgr, mod w srtd, mod cons, calc, tr glauc, indist lam 825 2g52.5 7.48 17.5 0.0 89.8 2.66 SS, mltgy, vf-fgr, md w srtd, ~ cons, calc, tr glauc, indist lam 826 2253.5 28.4 14.3 0.0 96.5 Z.67 SS, ltgy, vfgr, w srtd, mod cons, slcalc, tr glauc, indist lam 827 2254.5 16.1 0.0 96.4 2.75 SS, ltgy, vfgr, slty, w srtd, mod cons, slcalc, tr glauc, tr pyr, 828 Z255.4 8,61 16.7 0.0 96.8 2.67 SS, ltgy, vfgr. w srtd, md cons, slcalc, tr glauc, tndist 829 2256.7 8.90 15.7 0.0 95.7 2.66 SS, ltgy, vfgr, slty, w srtd, ~od cons, $1calc, tr glauc, tndtst 830 2257.5 8.40 15.4 0.0 94.8 2.66 SS, ltgy, vfgr, w srtd, md cons, slcalc, tr 91auc, tr pyr, 2258.0 - 2288.0 Core ~9 Cut 30' Recovered 30' 901 2258.5 7.33 18.1 1.8 86.6 2.68 SS, yelgy, vf-fgr, pred fgr, w srtd, irt, calc, tr glauc, indist lam 902 2259.0 Rubble - No Analys~s 903 2260.5 50.3 20.8 1.5 75.7 2.69 SS, yelgy, vf-fgr, pred fgr, w srtd, frt, calc. tr glauc, indist lam 904 2261.7 4.40 16.6 1.8 78.6 2.67 SS, ltgy, vfgr, v $1ty, w srtd, mod cons, calc, tr glauc, tnd~st lam 905 2262.5 47.1 20.8 0.4 67,3 Z.66 SS, ltgy, vfgr, v slty, w srtd, mod cons, calc, tr glauc, tnd~st 906 Z263.5 3.63 17.1 0.8 82.3 Z.67 SS. ltgy, vfgr, v $1ty, w srtd, mod cons, calc, tr glauc, tndtst 907 Z264.5 18.2 19.6 0.9 76.7 2.67 SS, ltgy, vfgr, v slty, w srtd, sl frt, calc, tr glauc, tndJst 908 2265.5 68.5 21.8 0.6 71.2 2.66 SS. ltgy, vfgr, v slty, w srtd, sl frt, calc, tr glauc, tndtst 909 2266.6 11.9 18.5 1.3 76.7 2.67 SS, ltgy, vfgr, v slty; w srtd, sl frJ, calc, tr glauc, indist 910 2267.6 37,5 20.6 0.7 75.8 2.66 SS, ltgy, vfgr, v slty, w srtd, sl frt, calc, tr glauc, tndist lam 911 2268.6 24.2 19.4 0.2 81.1 2,66 SS, ltgy, vfgr, v slty, w srtd, sl irt, calc, tr glauc, tndtst 1 -8 Company : North Slope Borough Well : NSB ~6 CORE CORE LABORATORIES Field : South Barrow Unit File No.: BP-3-1266 Formation : Lower Cretaceous and JurasDate : 23-Hay-88 ANALYSIS RESULTS ............ sATURAtiON SAPIPLE DEPTH PER.EABILITY POROSITY GRAIN DESCRIPTION NUMBER (HORIZONTAL) (HELIUN) (PORE VOLUME) DENSITY Kair OIL WATER ft md % % % gm/cc ...... 912 2269.5 37.7 20.8 1.9 74.9 2.66 SS, ltgy, vfgr, v s'i'ty, w srtd, sl fri, talc, tr glauc, indist lam 913 2270.5 1.20 12.9 1.3 95.7 2.67 SS, ltgy, vrgr, v slty, w srtd, sl frt, calc, tr glmu¢, tndJst lam 914 2271.5 11.8 18.4 0.3 78.5 2.66 SS, ltgy, vfgr, v slty, w srtd, $1 fri. calc, tr glauc, tndist lam 915 2272.5 Z5.Z 21.1 1.6 77.1 2.66 SS, ltgy, vfgr, w srtd, slfri, celt, tr glauc, indist lam 916 2273.5 76,4 21.7 0.2 71.3 2.66 SS, ltgy, vfgr, w srtd, slfri, talc, tr glauc, 917 2274.5 28.0 20.6 1.3 72,6 2.67 SS, ltgy, vfgr, w srtd, slfri, talc, tr glauc, indist lam 918 2275.5 19.7 20.4 0.4 75.6 2.66 SS, ltgy, vrgr, , srtd, slfrJ, calc, tr glauc, indist 919 2276.5 3.78 17.0 0.1 79.3 2.67 SS, ltgy, vfgr, w srtd, mod cons, calc, tr glauc, indist lam 920 2277.5 2.26 15.8 Z.l 83.4 2.67 SS, Itgy, vfgr, w srtd, mod cons, calc, tr glauc, indist lam 921 2278.5 6.36 17.6 1.0 81.4 2.68 SS, ltgy, vfgr, w srtd, nail cons, calc, tr glauc, indJst lam 922 2279.5 0.82 14.0 1.3 96.4 2.67 SS, ltgy, vfgr, w srtd, mod cons, calc, tr glauc, indist 923 Z280.5 2.53 16.4 0.8 89.3 2.67 SS, ltgy, vfgr, w srtd, mod cons, calc, tr glauc, indJst 924 2281.5 6.09 18.3 0.4 85.1 2.67 SS, ltgy, vfgr, w srtd, mod cons, calc, tr glauc, indJst 925 2282.5 4.42 18.4 0.9 91.1 2.67 SS, ltgy, vfgr, w srtd, mod cons, calc. tr glauc, indist lam 926 2283.5 2.41 16.0 0.8 90.9 2.71 SS, ltgy, vfgr, w srtd, mod cons, calc, tr glauc, indist lam 927 2284.2 0.84 IS.Z 0.7 90.4 2.72 SS, ltgy, vfgr, w srtd, mod cons, calc, tr glauc, indist lam 928 2285.5 1.08 16.0 1.0 91.2 2.68 SS, ltgy, vfgr, w srtd, mod cons, talc, tr glauc, indist lam 929 2286.4 0.82 13.0 0.6 92.3 2.69 SS, ltgy, vfgr, w srtd, mod cons, calc, tr glauc, indtst 930 2287.2 0.40 14.1 1.4 96.1 Z.68 SS, ltgy, vfgr, w srtd, mod cons, calc, tr glauc, indtst ('*) Oenotes Broken, Fractured or Irregularly Shaped S&mple Permeability May Be Affected 1 - 9 CMS OVERBURDEN ANALYSIS RESULTS North Slope Borough NSB ~6 South Barree Un|t North SLope, ALaska CORE LABORATORIES Date: 6-20-88 Formation: Loger Cretacous and Jurassic Coring FLuid: gBlq Location: Sec 6, T21N, R17~J FiLe No: BP-3-1266 AnaLysts: TLS;TDT API No: C~S OVERBURDEN PRESSURE ANALYSIS SampLe Depth Pressure Porosity Hot Permeabili Grain Nteaber (Ovbd) (Hel Jun) KL KaJ r(est) Density (ft) psi X (md) (md) gm/cc Description ...... ....o ........ . ........ o.... ..o... ...oo.. .. ........... o ..... ..... ................................ LATH) #easured ge end Pot ere taken from the conYentiorml core analysis resu(ts 213 1609.6 ATM 19.5 20.6 2.68 800 19.5 16.59 19.72 1206 19.1 15.12 18.01 1612 18.9 14.31 17.07 SS, ltgy, vf-fgr, pred vfgr, w srtd, fri, stcatc, indist tm 214 1610.6 AT# 19.7 35.60 2.66 800 19.2 26.3~, 30.09 1206 19 24.49 28.13 1612 18.8 23.&9 27.02 SS, ttgy, vf-fgr, pred vfgr, u srtd, fri, stcatc, indist Lam 216 1612.4 ATM 11.5 1.51 2.69 800 11.9 1.20 1.69 1206 11.8 1.17 1.66 1612 11.7 1.16 1.6~ SS, (tgy, vfofgr, pred vfgr, mod w srtd, w cons, caIc 310 1636.5 AT# 6.7 0.21 2.72 800 ?.5 0.15 0.22 1219 7.3 0.14 0.21 1637 7.3 0.1& 0.20 SS, Ltgy, vf-fgr, pred vfgr, ~ srtd, w cons, catc North SLope Borough NS8 ~6 South 6arrowUnit North SLope, ALaska CORE LABORATORIES Date: 6-20-8~ Formation: Lo. er Cretacous and Jurassic Coring Fluid: ~ Location: Sec 6, T21N, R17U FiLe #o: BP-3-12(~ Anatysts: TLS;TDT APl No: CMS OVERBURDEN PRESSURE ANALYSIS Sanpte Depth Pressure Porosity Hor Per~eabiii Grain Number (Ovbd) (HelitJn) KL Kair(est) Density (ft) psi X (md) (md) gm/cc Oescription ....... o..... .o...... . ...... ..... ...... ....... .................... ...... .............................. (AT#) Measured Ka and Par are take~ from the conventional core analysis results 311 1637.4 ATM 13.9 3.60 2.75 800 11.9 4.74 5.18 1219 11.6 2.64 2.94 1637 11.6 1.74 1.97 tldst, md dkgy. mod cons, stcaic, tr mica, tr pyr, fis ** 320 1646.5 ATN 15.7 6.~8 2.66 800 12 2.67 3.21 1219 11.7 1.12 1.44 1637 11.5 0.60 0.82 Mdst, mdkgy, mod cons, skcaic, tr mica, tr p/r, fis ** 322 1648.5 ATM 22 189.00 2.67 800 16.9 103.46 139.07 1219 16.3 69.07 90.78 1637 15.9 51.17 65.32 #dst, mdkgy, mod cons, stcaLc, tr mica, tr pyr, fis (ireg spt) ** 323 1649.5 AT# 15.2 10.40 Z.67 800 12.1 3.37 4.06 1219 11.8 1.50 1.91 1637 11.6 0.85 1.13 I~st, mdkgy, mod cons, sica[c, tr mica, tr pyr, fis North Slope Borough #SB ~6 South Barrow Un|t North Slope, Alaska CORE LABORATORIES Date: 6-20-88 Formation: Lo-er Cretacous ancl Jurassic Coring Fluid: 1aBM Location: Sec 6, T21N, R17U File No: BP-3-1266 Analysts: TLS;TDT APl No: (:NS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hor Permeabiti Grain Number (Ovtxt) (Helium) KI Kair(est) Density (ft) psi ~ (md) (md) gm/cc Description ......... o.o ........ .....o. ..o.o o. ..... ..oo.o ......o .......... ....................................... (AT#) #assured Ka and Pot are taken from the conventional core analysis results 327 1653.7 ATN 16.4 7.92 2.71 800 12.7 3.23 3.94 1219 12.4 1.42 1.83 1637 12.2 0.81 1.09 #dst, mdkgy, mod cons, stcatc, tr mica, tr pyr, lis, tr sd ** 407 2096.5 ATM 13.8 41.40 2.71 800 11.3 ~6.92 51.77 1J~8 10.8 18.16 19.44 2096 10.5 9.12 9.70 14dst, ely, slty, calc, moclcons, tr mica, tr pyr, al fie ** 408 2097.5 AT~ 15.4 45.80 2.76 800 13.5 13.14 15.14 1448 13 5.62 6.56 20~6 12.7 3.05 3.57 Iqdst, mcjy, slty, calc, mod cons, tr mica, tr pyr, sL fis ** 409 2098.5 AT# 13.8 9.98 2.71 800 12.5 5.29 5.88 1448 12.1 1.77 2.05 2096 11.9 0.80 0.96 #dst, mgy, slty, calc, mxl cons, tr mica, tr pyr, si fis North SLope Borough NSB ~6 South Barro~Unit North SLope, ALaska CORE LABORATORIES Date: 6-20-88 Formation: Lo,er Cretacous and Jurassic Coring FLuid: t/SM Location: Sec 6, T21N, R1ZU FiLe No: BP-3-1266 AnaLysts: TLS;TDT API No: CNS OVERBURDEN PRESSURE ANALYSIS SampLe Depth Pressure Porosity Xor Permeabi[i Grain N~ber (Ovbd) (HeLium) KL Kair(est) Density (ft) psi · (md) (md) gm/cc Description LATH) Measured Ka and Pot are taken from the conventional core analysis results 410 2099.5 ATM 16.4 89.70 800 12.7 31.47 34.53 1448 12.1 12.65 13.72 2096 11.7 6.31 6.91 2.Z Ndst, mgy, stty, catc, cod cons, tr mica, tr pyr, sL fis (ireg spt) 412 2101.5 ATM 13.2 800 12 164,8 11.6 2O96 11.4 Ndst, ~gy, stty, catc, cod cons, tr mica, tr p/r, sL fis 501 2151.4 ATM 800 1&8~ 2165 12 10.9 10.4 10.2 0.85 0.30 0.14 2.80 1.12 0.44 0.23 2.87 SS, otvgy, vfgr, arg, w srtd, aod cons, abnt ady Lacs, sid c~t 505 2155.6 ATM 148~ 2165 13.7 13.5 12.8 12.4 1.33 O.&l 0.19 3.00 1.73 0.61 2.67 Mdst, otvgy, ab~t vfgr ~d, tr celt, .~1 coed, btoturb North Slope Bocough NSB #6 South Barro~Unit North Stope, Ataska CORE LABORATORIES Date: 6-20-88 Foreation: Lo,er Cretacous and Jurassic Coring Ftutd: k'BM Location: Sec 6, T21N, R17~1 File No: BP-3-1266 Analysts: TLS;TDT APl No: CMS OVERBURDEN PRESSURE ANALYSIS Sampte Depth Pressure Porosity Hot Permeabiti Grain N~m,ber (Ovbd) (Heti~mn) KL Kair(est) Density (ft) psi X (md) (md) gm/cc Description ............................................ . .... o..oo.....o.... .... ............................. ..... (ATM) Measured Ka and Por are taken from the conventionat core armtysis resutts 506 2156.5 ATM 12.5 2.51 2.68 800 11.Z 0.39 0.59 1483 11.2 0.11 0.21 2165 11 0.05 0.11 Hdst, ~dkgy, v 8dy, tr catc, ,xxi cons, abnt vfgr sdy ta~s, bioturb 509 2159.4 ATM 14.1 4.71 2.69 800 12.5 0.6~ 0.96 1483 11.9 0.21 0.38 2165 11.6 0.11 0.22 SS, ttg¥, vfgr, arg, w artd, .od cons, stcatc, tr pyr, giauc 510 2160.4 AT# 12.8 1.52 2.6? 8OO 12.5 1483 12 2165 11.8 SS, ~tgy, vfgr, arg, w artd, mod com, aLcatc, tr pyr, giauc 511 2161.5 ATN 14.2 3.75 2.69 800 12.9 0.65 0.97 148~ 12.3 0.23 0.40 2165 12.1 0.12 0.2,3 SS, ttgy, vfgr, arg, w srtd, mxxl con~, stcalc, tr pyr, gtauc North SLope Borough NSB ~6 South Barrow Unit North SLope, Alaska CORE LABORATORIES Date: 6-20-88 Formation: Lower Cretacous and Jurassic CorirKj FLuid: t,~# Location: Sec 6, T21N, R17U File No: BP-3-1266 Analysts: TLS;TDT APl No: CMS OVERBURDEN PRESSURE ANALYSIS SampLe Depth Pressure Porosity Hot PermeabiLi Grain Nceber (Ovbd) (Helium) KL Kair(est) Density (ft) psi ~ (md) (md) gm/cc Description ............... ....o. .o.. ..... ... ... .............. .. ...... (ATH) H~asured Ka and Pot ace taken from the conventional core analysis results 512 2162.5 AT# 13.8 2.90 2.69 800 12.9 1~3 12.4 2165 12.2 SS, ttgy, vfgr, erg, u srtd, mod cm~s, stcatc, tr pyr, gtauc 514 216~.4 ATN 15.8 3.17 2.69 800 14.7 1483 14.2 2165 13.9 SS, Ltgy, vf-fgr, pred vfgr, sLty, u srtd, fri, caLc, gLauc, Lam 516 2166.5 ATN 13.2 5.09 2.69 800 12.1 1~ 11.6 2165 11.3 SS, ltgy, vfgr, slty, w srtd, fri, calc, gLauc, Lam 517 2167.4 ATN 13.8 9.12 2.69 800 12.4 1483 11.9 2165 11.6 SS, Ltgy, vfgr, sLty, w srtd, fri, caLc, g[auc, Lam, tr pyr North SLope Borough NSB #6 South Barrow Unit North SLope, ALaska CORE LABORATORIES Date: 6-20-88 Formation: Lo.er Cretacous and Jurassic Corin~ FLuid: ~ Location: Sec 6, T21N, R17~ FiLe No: BP-3-1266 AnaLysts: TLS;TDT APl No: CMS OVERBURDEN PRESSURE ANALYSIS SampLe Depth Pressure Porosity Hot PermeabiLi Grain N~nber (Ovbd) (Helium) KL Kair(est) Oensity (ft) psi ~ (md) (md) gm/cc Description (ATM) Measured Ka and Pot are taken from the conventional core analysis results 518 2168.5 ATM 13.5 5.76 2.68 800 12.1 0.63 0.93 1483 11.6 0.17 0.30 2165 11.3 0.07 0.15 SS, Ltgy, vfgr, sLty, w srtd, fri, caLc, gtauc, Lac 519 2169.5 ATM 14.6 7.71 8O0 15.2 1~83 12.6 2165 12.3 2.7 SS, Ltgy, vfgr, aLty, u srtd0 fri, calco gLauc, Lam 520 2170.5 ATM 16.4 3.66 800 15.2 1~83 14.6 2165 14.3 SS, ttgy, vfgr, arty, u srtd, fri, catc, tr gLauc, Lac 521 2171.4 ATM 14 6.10 800 12.9 1~ 12.3 2165 12 2.? SS, Ltgy, vfgr, sLty, w srtd, fri, ca[c, tr gLauc, indist Lam North SLope Borexjh NSB ~6 South Barro~ Unit North SLope, Ataska CORE LABORATORIES Date: 6-20-88 Formtion: Loter Cretacous and Jurassic Coring Ftuid: gBg Location: Sec 6, T21#, R17U FiLe No: BP-3-1266 Analysts: TLS;TOT APl No: CHS OVERBURDEN PRESSURE ANALYSIS SampLe Depth Pressure Porosity Hot Pereeabili Grain Number (Ovbd) (Hetium) Kt Kair(est) Density (ft) psi X (md) (md) gm/cc Description ...... '-°' .............. ---- -o--- --o-.- -.....- .. .... o ........... ..-..... .... .....-........e..... .... .o (ATH) Heasured Ka and Por are taken from the conventional core analysis results 522 2172.5 AT# 12.6 2.?9 2.68 800 12 1~d~3 11.6 2165 11.3 SS, Ltgy, vfgr, stty, u srtd, fri, caLc, tr giauc, tr mica, indist Lam 523 21T3.5 AT# 14.3 1.88 2.67 800 13.6 0.51 0.81 1483 13.1 0.21 0.38 2165 1Z.8 0.12 0.~5 SS, [tgy, vfgr, slty, u srtd, fri, calc, tr glauc, indist 52& 2174.5 ATM 13.6 1.58 2.68 800 13 1L~ 12.6 2165 12.4 SS, [tgy, vfgr, sity, u srtd, fri, catc, tr glauc, indist lam 525 217~.5 ATN 13.9 2.06 2.68 800 13 0.66 O.r7 1483 12.5 0.18 0.33 2165 12.2 0.09 0.20 SS, [tgy, vfgr, stty, u srtd, fri, calc, tr glauc, indist la~ North Slope Boro~jh NSB ~6 South Barro~Unit North Slope, ALaska CORE LABORATORIES Date: 6-20-88 Formation: Lo.er Cretacous ~ Jurassic Corin~ Fluid: t~ Location: Sec 6, T21N, R17U File No: BP-3-12~5 Analysts: TLS;TDT APl No: CHS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hot PermeabiLi Grain Number (Ovlx]) (Helium) KI Kair(est) Density (ft) psi X (ad) (ad) ge/cc Description .o ................ . .......... .o.. o ............ . ......... ........ . .....o. .............................. lATH) #easured Ka and Pot are taken from the conventional core analysis results 526 2176.7 AT# 14.3 1.12 2.67 800 13.8 0.36 0.61 1483 13.3 0.18 0.35 2165 13.1 0.12 0.25 SS, itgy, vfgr, slty, u srtd, fri, calc, tr glauc, indist 527 2177.4 AT# 15.2 4.92 2.68 800 14.4 1.20 1.69 1483 13.7 0.42 0.68 2165 13.2 0.23 0.41 SS, Itgy, vfgr, slty, w srtd, fri, catc, tr glauc, indist lee (>02 2181.6 ATH 20.8 19.20 2.68 800 20 11.~ 14.32 1495 19.5 10.08 12.30 2190 19.1 8.87 10.81 SS, Ltgy, vfgr, stty, w srtd, fri, celc, tr gteuc, indist Lea 603 2182.4 ATN 18.4 ~..87 2.69 ~0 17.2 2.10 3.05 14~ 16.7 1.51 2.28 2190 16.4 1.27 1 .~ SS, ltgy, vfgr, slty, w srtd, fri, caLc, tr gtauc, indist lee ~orth SLope Borough ~S8 ~6 South Barro~Unit Worth SLope, ALaska CORE LABORATORIES Date: 6-20-88 Fornmtion: Lo.er Cretacous and Jurassic Coring FLuid: WBN Location: Sec 6, T21N, R17~1 FiLe No: BP-3-1266 AnaLysts: TLS;TDT APl No: CIdS OVERBURDEN PRESSURE ANALYSIS SampLe Depth Pressure Porosity Hot Pemeabiti Grain N~r (Ovbd) (Hetit~) KL Kair(est) Density (fL) psi ~ (md) (md) gm/cc Description . ...... ...... o.....o. .... ... ..... ..... .... . ...................... ..................................... (ATN) Neasured Ka and Pot are taken from the conventional core analysis results ~ 2187.5 ATN 12.6 4.94 2.69 800 11.2 1.~ 2.27 14~ 10.7 0.53 0.78 2190 10.4 0.23 0.38 SS, ttgy, vfgr, stty, w srtd, fri, stcatc, tr gtauc, tndist [aa 610 2189.6 ATH 18 3.09 2.~ mO 17.2 14~ 16.7 21~ 16.4 SS, ttgy, vfgr, stty, u srtd, fri, stcatc, tr gtauc, indist [aa 613 2192.5 ATM 20.1 23.70 2.68 800 20.3 l&~ 19.9 21~ 19.7 SS, ttgy, vfgr, stty, w srtd, fri, stcatc, tr gteuc, indist Lea 614 2193.5 ATN 13.8 3.31 2.68 800 11.9 0.17 0.34 14~ 11.6 0.12 0.25 21~ 11.5 0.~ 0.20 SS, ttgy, vfgr, stty, w srtd, fri, stcaLc~ tr gleuc, indist taa North Slope Borough NSB ~ South Barro~ Un|t North Slope, ALaska CORE LABORATORIES Date: 6-20-88 Formation: Louer Cretacous and duras$ic Coring FLuid: Location: Sec 6, T21N, R171~ File No: BP-3-1266 Analysts: TLS;TOT APl No: OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hor Permeabili Grain Number (Ovbd) (Helium) KI Kair(est) Density (ft) pst ~ (md) (md) gm/cc Description ... ......... . ........ ..... .......... .. ..... . ......... ................................................. (ATM) Measured Ka and Por are taken from the conventiorml core analysis results 615 2194.5 ATN 21.2 9.19 2.67 800 20.9 6.13 ?.65 1495 20.1 5.56 6.94 2190 19.? 5.2& 6.55 SS, ltgy, vfgr, slty, w srtd, fri, $lcalc, tr gtauc, tndist lam 616 2195.5 AT# 16.3 3.26 2.68 800 15.8 1495 15.5 2190 15.3 SS, ttgy, vfgr, stty, u srtd, fri, stcalc, tr glauc, indist lae 617 2196.4 ATM 13.? 6.~ Z.68 84:)0 12.5 0.~ 0.42 1495 12 0.12 0.2& 2190 11.8 0.09 0.18 SS, ttgy, vfgr, stty, u 8rtd, fri, stcalc, tr OLauc, indist Lam 618 2197.6 ATN 19.1 5.08 2.69 800 18.5 4.20 5.41 1495 18 3.55 4.63 2190 17.7 ].26 4.28 SS, itgy, vfgr, slty, w srtd, fri, slcaLc, tr glauc, indtst Worth Slope Borough ~SB ~6 South Barrou Unit Worth Slope, Alaska CORE LABORATORIES Date: 6-20-88 Formation: Lo, er Cretacous and Jurassic Coring Fluid: NaM Location: Sec 6, T21#, R171d File No: BP-3-1266 Analysts: TLS;TOT APl No: CMS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Ho? Permeabiii Grain Number (Ovbd) (Helium) Kt Kair(est) Density (ft) psi ~ (md) (md) gm/cc Description (ATM) Measured Ka and Po? are taken from the conventional core analysis results 619 2198.7 AT# 18.4 3.90 2.69 SS, [tgy, vfgr, sity, a srtd, fri, slcalc, tr gtauc, indist [am 800 18.9 2.~,5 3.39 1495 18.4 2.00 2.94 2190 18.1 1.86 2.72 701 2200.6 ATM 18.4 6.17 2.67 800 16.9 2.17 3.10 1507 16.5 1.57 2.36 2214 16.2 1.36 2.06 SS, ltgy, vfgr, w srtd, slfri, calc, tr glauc, indist la. 704 2203.? ATM 21.3 143.00 2.68 800 19.8 7T.71 101.02 1507 18.9 42.21 51.29 2214 18.4 25.87 30.58 SS, ltgy, vfgr, w srtd, alfri, cate, glauc, tr pyr, indist Lam ** 710 2209.4 ATM 12.4 1.39 2.69 800 12.1 0.22 0.43 1507 11.6 0.10 0.22 2214 11,3 0.06 0.15 SS, ltgy, vfgr, w srtd, slfri, caLc, tr gLeuc, tr pyr, indist Lam North SLope Borough NS8 ~6 South Barrow Unit North SLope, Alaska CORE LABORATORIES Date: 6-20-88 Formation: Lower Cretacous and Jurassic Coring FLuid: gaM Location: Sec 6, T21N, R17~1 File No: BP-3-1266 Analysts: TLS;TOT AP! No: CMS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hot PermeabiLi Grain Number (Ovbd) (Helium) KL Kair(est) Oensity (ft) psi X (md) (md) gm/cc Description (ATM) Measured Ka and Pot ere taken from the converltJo~ia[ core analysis results 716 2215.5 ATH 15.9 5.54 800 14 0.81 1.26 1507 13.2 0.32 0.58 2214 12.7 0.19 0.38 2.7 SS, mgy, vfgr, w srtd, stfri, catc, tr gl,ut, indtst tam (ireg spL) 717 2216.5 ATM 17 4.38 800 17 1.78 2.47 1507 16.6 1.57 2.19 2214 16.3 1.48 2.05 2.67 SS, mgy, vfgr, w srtd, stfri, catc, tr gtauc, indist Lam 718 2217.5 AT# 14.9 3.96 800 12.7 0.45 0.~ 1507 12.1 0.16 0.31 2214 11.8 0.09 0.20 SS, mgy, vfgr, w srtd, stfri, catc, tr gl,ut, indist Lam 2218.5 ATM 16.1 3.44 800 16.2 2.30 3.12 1507 15.9 2.11 2.89 2214 15.7 2.03 2.77 2.67 $S, mgy, vfgr, w srtd, sLfri, caLc, tr giauc, tndist tam Iorth SLope Boro~h ISB ~ ;outh Barr~ Unit Iorth SLope, ALaska CORE LABORATORIES Date: 6-20-88 Formation: Louer Cretacous and Jurassic Coring FLuid: t~q Location: Sec 6, T21N, R17t/ File #o: BP-3-1266 Analysts: TLS;TOT APl #o: CMS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hor Permeabiii Grain #uaber (Ovbd) (Helium) KL Kair(est) Density (ft) psi X (md) (md) gm/cc Description ............................ ............................ (ATM) Measured Ka and Pot are taken from the conventional core analysis results 722 2221.5 ATH 14.6 14.30 2.69 800 11.9 1.72 2.21 1507 11.2 0.40 '0.61 2214 10.7 0.16 0.28 SS, ar/, vfgr, w srtd, stfri, caLc, tr giauc, indist La, 723 2222.5 ATM 16.4 176.00 2.69 800 15.5 23.98 3&.81 1507 14.8 9.60 13.18 2gl& 14.& 5.12 7.10 SS, mgy, vfgr, w srtd, stfri, catc, tr gLeuc, indist Lee ** 724 2223.5 AT# 16.3 8.~8 2.69 800 14.2 Z.77 3.71 1507 13.4 1.21 1.66 2214 12.9 0.68 0.96 SS, mgy, vfgr, w srtd, sLfri, catc, tr gLeuc, tndist iaa, tr pyr 725 2224.1 ATM 17.1 27.90 2.68 800 17.3 34.40 43.02 1507 16.6 18.37 21.99 2214 16.3 11.41 13.51 SS, mgy. vfgr, w srtd, sifri, cate, tr glauc, indist Lea, tr pyr ** North Stope Borough NSB #6 South Barrow Unit North Stope, Ataska CORE LABORATORIES Date: 6-20-88 Formation: Lmaer Cretacous end Jurassic Coring Fluid: ~JlJM Location: Sec 6, T21N, R17U Fite No: BP-3-1266 Anatysts: TLS;TOT APl No: C:14S OVERBURDEN PRESSURE ANALYSIS Sampte Depth Pressure Porosity Hot Permeabiti Grain Number (Ovbd) (Hetium) Kt Kair(est) Density (ft) psi % (md) (md) gm/cc Description ....... o ................ ..o. . .... o... ....... o. (ATM) Measured Ka and Por are taken from the conventional core analysis results 726 2225.4 ATN 14.1 5.29 2.68 800 14.8 1.48 2.10 1507 14.2 0.87 1.30 2214 13.9 0.67 1.03 SS, ttgy, vfgr, u srtd, stfrt, catc, tr gtauc, tndist [ae 727 2226.5 ATH 9.1 40.30 3.03 800 9.2 12.24 13.28 1507 8.8 5.00 5.32 2214 8.5 2.57 2.7'3 SS, ttgy, vfgr, s[ty, u srtd0 s[fri, v ca[c, indtst [am ** 802 2229.5 ATN 16.1 2.06 2.67 800 16 0.78 1.22 1522 15.4 0.60 0.97 2243 15.1 0.51 0.85 SS0 ttgy, vfgr, u srtd, ~od cons, v catc, tr gtauc, indist tam 2231.5 ATM 13.5 1.44 800 12.4 0.22 0.37 1522 11.9 0.07 0.15 2243 11.7 0.0~ 0.09 2.7 SS, [tgy, vfgr, w srtd, cod cons, v ca[c, tr gtauc, indist tam North Slope Borough South Barro~Unit North SLope, Alaska CORE LABORATORIES Date: 6-20-88 Formation: Lo.er Creta¢ou~ and Jurassic Coring FLuid: t~M Location: Sec 6, T21N, R17U FiLe No: BP-3-1266 AnaLysts: TLS;TDT APl No: CNS OVERBURDEN PRESSURE ANALYSIS SampLe Oepth Pressure Porosity Hot Permeabiti Grain Number (Ovbd) (HeLium) Kt Kair(est) Density (ft) psi ~ (md) (md) gm/cc Description (AT#) Measured Ka and Par are taken from the conventional core analysis results 711 2210.5 AT# 15.2 1.52 800 15 0.64 1.04 1507 14.6 0.49 0.86 2214 14.3 0.44 0.78 SS, ttgy, vfgr, w srtd, stfri, catc, tr giauc, tr pyr, indist tam 712 2211.5 ATM 22.2 60.10 800 22 49.82 54.65 1507 21.7 ~8.25 53.03 2214 21.5 47.~ 52.06 SS, ttgy, vfgr, w srtd, stfrt, caic, tr carb fregs, tr gtauc 713 2212.2 ATM 12.4 1.T5 800 14.3 0.32 0.61 1507 13.5 0.18 0.:56 2214 13.1 0.13 0.28 2.69 SS, mgy, vfgr, u 8rtd, stfri, calc, tr gtauc, tndist Lam 715 2214.6 ATM 15 126.00 800 12.8 19.41 24.67 1507 12.1 8.59 10.72 2214 11.7 4.53 5.69 SS, egy, vfgr, w srtd, stfri, catc, tr gtauc, indist Lam ** North SLope Borough NS8 ~6 South Barro~Unit North SLope, ALaska CORE LABORATORIES Date: 6-20-88 Formtion: Lo~er Cretacous and Jurassic Coring FLuid: t~BM Location: Sec 6, T21N, R1714 File No: BP-3-1266 Analysts: TLS;TOT APl No: CMS OVERBURDE# PRESSURE ANALYSIS SampLe Depth Pressure Porosity Hot Permeabiti Grain Ntlrber (Ovlxl) (Hetiun) KL Kair(est) Density (ft) psi ~ (md) (md) gm/cc Description (ATM) Measured Ka and Pot are taken from the conventional core analysis results 805 2232.6 ATN 15 1.35 2.79 800 14.2 0.26 0.46 1522 13.7 0.12 0.25 2243 13.5 0.08 0.18 SS, [tgy, vf-fgr, pred vfgr, mod w srtd, mod cons, caic, tr g[auc, indist tam 813 2240.5 ATN 17.7 12.00 2.68 800 15.9 2.18 3.15 1522 15.1 1.27 1.92 2243 14.7 0.93 1.45 SS, vttgy, vf-fgr, pred fgr, u srtd, st fri, catc, indist Lam ** 817 2244.6 ATM 12.5 48.60 2.98 800 12.6 16.77 18.59 1522 12.3 9.12 10.28 22&3 12.1 6.00 6.~ SS, vttgy, vf-fgr, pred fgr, w srtd, w con~, caLc, indtst tam ** 819 22~6.5 ATN 23.4 80.90 2.69 - ' 800 20.8 52.97 58.10 1522 20.1 45.51 50.05 ;i:: ,,: 2243 19.8 41.62 45.93 SS, Ltgy, vf-fgr, pred fgr0 w srtd, slfri, slcatc, glauc, indist Lam Worth SIcq~e Borc~3gh MS6 ~5 South Barro~Unit Worth SI~, Alaska CORE LABORATORIES Date: 6-20-88 FormatiOn: Lower Cretacous and durassic Coring Fluid: t~lM Location: Sec 6, T21N, R17~/ File No: BP-3-1266 Analysts: TLS;TDT APl No: CMS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hot Permeabiti Grain Number (Ovbd) (Helium) KL Kair(est) Density (ft) psi % (md) (md) gm/cc Oescription (ATM) Measured Ka and Pot are taken from the coflventionat core analysis results 820 2247.5 ATH 24.2 203.00 2.71 800 21.6 115.09 121.75 1522 20.8 103.37 109.41 2243 20.4 97.22 103.07 SS, ttgy, vf-fgr, pred fgr, w srtd, stfri, stca[c, gtauc, indist Lam 823 2250.5 ATM 16 1.35 2.74 800 14.6 0.21 0.41 1522 14.1 0.10 0.24 2243 13.8 0.07 0.18 SS, ttgy, vfgr, w srtd, mod cons, stcatc, tr gtauc, indist tam 824 2251.3 ATM 17.1 2.0~ 2.71 800 14.9 0.34 0.63 1522 14.3 0.19 0.40 2243 14 0.15 0.32 SS, mttgyo vf-fgr, mod w srtd, ~od cons, calc0 tr glauc, indist lam 826 2253.5 ATM 14.3 28.40 2.67 800 12.1 3.88 4.75 1522 11.2 1.32 1.74 2243 10.8 0.65 0.93 SS, ttgy, vfgr~ w srtd, easel cons, stcatc, tr gtauc, indist tam ** North SLope Borough NSB #6 South Barro~Unit North SLope, ALaska CORE LABORATORIES Date: 6-20-88 Foremtion: Lo.er Cretacous and Jurassic Coring FLuid: ta?4~ Location: Sec 6, T21N, R17U FiLe No: BP-3-1266 AnaLysts: TLS;TDT APl No: CMS OVERBURDEN PRESSURE ANALYSIS SampLe Depth Pressure Porosity Hor Permeabiti Grain Number (Ovbd) (HeLium) KL Kair(est) Oensity (fL) psi ~ (md) (md) gm/cc Description (ATM) Measured Ka and Pot are taken from the conventional core analysis results 828 2255.4 ATM 16.7 8.61 800 14.8 1.45 2.12 1522 13.8 0.62 0.98 2243 13.3 0.36 0.61 2.67 SS, ttgy, vfgr, w srtd, mod cons, stcatc, tr gtauc, indist tam 901 2258.5 ATN 18.1 7.33 800 18.2 4.60 6.02 1537 17.7 3.92 5.17 2273 17.4 3.59 4.76 2.68 SS, yetgy, vf-fgr, pred fgr, w srtd, fri, catc, tr gtauc, indist tam 9O3 2260.5 ATN 20.8 50.20 800 20.3 38.30 42.67 1537 19.9 34.51 38.51 2273 19.7 32.06 35.93 2.69 SS, yeigy, vf-fgr, pred fgr, w srtd, fri, caLc, tr gtauc, indist tam 2261.7 ATN 16.6 4.40 800 16.4 2.54 3.67 1537 16.1 2.16 3.18 227'5 15.9 1.98 2.94 2.67 SS, ttgy, vfgr, v stty, ~ srtd, mod cons, catc, tr 9tauc, indist tam North SLope Borough NSB #6 South Barro, Unit North Slope, ALaska CORE LABORATORIES Date: 6-20-88 Fomation: Lo~er Cretacous and Jurassic Coring FLuid: ~ Location: Sec 6, T21N, R17U File No: BP-3-1266 Analysts: TLS;TDT APl No: CMS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hoe PermeebiLt Grain Number (Ovbd) (Helium) KL Kair(est) Density (ft) psi X (md) (md) ge/cc Oescriptio~ .... .. o...o.. .....o.o ........ . ...... .. ........ ..o..~.... ................... (ATM) Measured Ka and Pot are taken from the conve~tio~aL core analysis results 905 2262.5 AT# 20.8 47.10 2.66 800 21.1 39.97 44.29 1537 20.7 38.37 42.65 22D 20.5 37.57 &l.~ SS, [tgy, vfgr, v s[ty, w srtd, mod cons, caLc, tr gtauc, indist tam 906 2263.5 ATH 17.1 3.63 2.67 800 16.7 2.12 3.07 1537 16.4 1.78 2.62 2275 16.2 1.61 2.~1 SS, Ltgy, vfgr, v sLty, w srtd, cod co~s, caLc, tr gLauc, indist tam 907 2264.5 ATM 19.6 18.20 Z.67 800 19.4 14.56 16.99 1537 19.1 13.50 15.79 Z275 18.9 12.94 15.15 S$, ttgy, vfgr, v stty~ ~ srtd~ st fri, caLc~ tr gtauc, indist Lam 909 2266.5 AT# 18.5 11.80 2.67 800 18.3 8.64 10.41 1537 18 7.97 9.63 2273 17.8 7.54 9.23 SS, ttgy, vfgr, v sttYo u srtd, sL fri, caLc, tr gtauc, indist Lam Worth Slope Boro~jh MS8 #6 South Barrow Unit Worth Slope, Alaska CORE LABORATORIES Date: 6-20-88 Foramtion: Louer Cretacous and Jurassic Coring FLuid: I~# Location: Sec 6, T21N, R171~ File No: BP-3-1266 Analysts: TLS;TOT APl No: CMS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hor Pemeabili Grain Number (Ovbd) (Helium) Et Kair(est) Density (ft) psi X (md) (md) gat/cc Description ...... . ............ . ........ ~... .....~ ........ lATH) Measured Ka and Pot are taken fro~ the conventional core analysis results 910 2267.6 ATN 20.6 37.50 2.66 800 20.7 30.69 3J~.63 1537 20.4 29.13 32.86 2273 20.2 28.20 31,8~ SS, ttgy, vfgr, v stty, w srtd, st fri, catc, tr gLauc, indist Lam 911 2268.6 ATM 19.4 24.20 2.66 800 18.9 13.56 15.98 1537 18.4 10.33 12.40 2273 18.1 9.00 10.91 SS, ltgy, vfgr, v stty, w srtd, sL fri, catc, tr gtauc, indist tam 913 2270.5 AT# 12.9 1.20 2.67 800 12.3 0.26 0.50 1537 11.8 0.12 0.28 2273 11.5 0.08 0.20 SS, ttgy, vfgr, v stty, w srtd, si fri, catc, tr gtauc, indist Lam 914 2271.5 ATM 18.4 11.80 2.66 800 18.2 8.00 9.86 1537 17.8 7.10 8.80 2273 17.6 6.69 8.30 SS, ttgy, vfgr, v slty, w srtd, sL fri, calc, tr gtauc, indist ta~ ~orth Slope Borough ~SB ~6 South Barro~Unit Worth Slope, Alaska CORE LABORATORIES Date: 6-20-88 Formation: Lo, er Cretacous and Jurassic Coring Fluid: I~BM Location: Sec 6, T21N, R17t~ File No: BP-3-1266 Analysts: TLS;TDT APl No: (;MS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hot Permeabili Grain Number (Ovbd) (Helium) KL Kair(est) Density (fl) psi ~ (md) (md) gm/cc Description (ATM) Measured Ka and Por are taken from the conventional core analysis results 916 2273.5 ATM 21.7 76.40 2.66 800 21.7 66.06 72.15 1537 21.5 63.7~ 69.66 2Z73 21.3 62.31 6~.20 SS, ltgy, vfgr, 917 2274.5 ATN 20.6 28.00 2.67 800 20.7 22.79 25.93 1537 20.3 21.30 24.25 227~ 20.1 20.52 SS, ltgy, vfgr, w srtd, slfri, calc, tr glauc, indist lam 918 2275.5 ATN 20.4 19.70 2.66 800 20.3 14.41 17.23 1537 20 12.71 15.31 2273 19.8 11.97 14.45 SS, Itgy, vfgr, u srtd, sifri, calc, tr glauc, indist lae 919 2276.5 ATN 17 3.78 2.67 ~0 16.6 2.48 3.42 1537 16.3 1.89 2.73 227~ 16.1 1.65 2.45 SS, ttgy, vfgr, w srtd, amd cons, calc, tr gteuc, indist tm North Slope Borough NSB ~6 South Barrou Unit North Slope, ALaska CORE LABORATORIES Date: 6-20-88 Formation: Lo,er Cretacous and durassic Coring FLuid: ta~4q Location: Sec 6, T21N, R1N FiLe No: BP-3-1266 Analysts: TLS;TOT APINo: CMS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hor Permeabiti Grain Ncmrber (Ovbd) (Helium) K[ KaJr(est) Density (ft) psi X (md) (md) gm/cc Description (ATM) Measured Ka and Pot are taken from the conventional core analysis results 920 2277.5 ATM 15.8 ' 2.26 2.67 800 15.5 1.28 1.89 1537 15.1 0.94 1.45 2273 14.9 0.81 1.28 SS, [tgy, vfgr, w srtd, mod co~s, ca&c, tr gLauc, indist Lam 921 22~.5 ATN 17.6 6.~ 2.~ 800 17.3 4.01 5.07 1537 16.8 3.11 4.15 2273 16.6 2.81 3.78 SS, [tgy, vfgr, w srtd, mod cons, ca[c, tr g[auc, indist Lam 922 2279.5 ATM 14 0.82 2.67 800 13.5 0.28 0.55 1537 13.1 0.19 0.40 2273 12.9 0.17 0.34 SS, [tgy, vfgr, w srtd, mod cons, caLc, tr g[auc, indist [aa 923 2280.5 ATN 16.4 2.53 2.67 800 16.1 1.39 2.11 1537 15.7 1.11 1.r2 2273 15.5 0.99 1.54 SS, ttgy, vfgr, w srtd, mod cons, ca[c, tr g[auc, indist tam North SLope Borough NSB #6 South Barrow Unit North SLope, ALaska CORE LABORATORIES Date: 6-20-88 Formation: Lower Cretacous and Jurassic Coring FLuid: 1~8M Location: Sec 6, T21N, R17~/ File No: 6P-3-1266 Analysts: TLS;TDT APl No: CMS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Hot PermeabiLi Grain Nurber (Ovbd) (Helium) KL Kair(est) Density (fl) psi X (~d) (md) gm/cc Description (ATM) Measured Ka and Pot are taken frown the conventional core analysis results 924 2281.5 ATN 18.3 6.09 2.67 800 18.3 4.12 5.31 1537 17.9 3.74 4.83 2273 17.7 3.54 4.58 SS, [tgy, vfgr, w srtd, ~ cons, caLc, tr glauc, indist la~ 925 2282.5 ATN 18.4 4.42 2.67 800 18.2 2.69 3.71 1537 17.9 2.20 3.14 2273 17.6 2.02 2.90 SS, ltgy, vfgr, W srtd, axxl cons, calc, tr gtauc, indist Lea 926 2283.5 ATM 16 2.41 2.71 800 15.6 1.28 1.94 1537 15.2 0.94 1.46 2275 15.1 0.78 1.24 SS, ltgy, vfgr, w srtd, ~od cons, calc, tr gtauc, indist La~ 927 2284.2 ATM 15.2 0.84 2.72 800 14.3 0.40 0.75 1537 13.9 0.25 0.51 2273 13.6 0.20 0.42 SS, Ltgy, vfgr, w srtd, cod cons, caLc, tr glauc, indist Lea North SLope Borough NS8 ~6 South Barro~Unit North Slope, Alaska CORE LABORATORIES Date: 6-20-88 Formation: Lo-er Cretacous and Jurassic Coring Fluid: talM Location: Sec 6, TZ1N, R17~1 File No: BP-3-1266 Analysts: TLS;TDT APl No: C~IS OVERBURDEN PRESSURE ANALYSIS Sample Depth Pressure Porosity Ho- Peraeabili Grain Number (Ovbd) (He[ium) KI Kair(est) Density (ft) psi X (md) (md) gm/cc Description (ATM) Measured Ka and Pot are taken from the conventiorml core analysis results 928 2285.5 AT# 16 1.08 2.68 800 15.6 0.46 0.83 1537 15.2 0.32 0.61 2273 15 0.27 0.53 SS, Ltgy, vfgr, w srtd, mod cons, catc, tr gLauc, indist (**) Denotes Broken, Fractured, or Irregularly Shaped Sample - Permeability May Be Affected SIDEWALL ANALYSIS RESULTS Company : North Slope Borough Well : NSB #6 Location : Sec 6, T12N, R17W Co,State : North Slope, Alaska CORE CORE LABORATORIES Field : South Barrow Unit Formation : Coring Fluid : WBM Elevation ANALYSIS RESULTS File No.: BP-3-1266 Date : lO-Hay-88 AP! No. : Analysts: TLS,TOT,RGC SAMPLE NUMBER 1 2 3 4 5 6 7 8 9 10 11 12 13a 13b 13c 14 15 16 DEPTH 1675.0 1710.0 1723.0 1995.0 2120.0 Z189.0 2239.O 2269.0 Z308.0 23Z5.0 2372.0 2403.0 2462.0 246Z.0 2462.0 2479.0 2489.0 25Z5.0 PERMEABILITY (HORIZONTAL) Kair POROSITY (HELIUM) SATURATION (PORE VOLUME) OIL WATER % % GRAIN DENSITY gm/cc DESCRIPTION 31.3 131. 3.13 7.98 46.1 33.6 8.02 15.4 6.27 34.4 25.0 Z1.8 12.0 33.5 19.8 Z1.5 24.5 24.3 19.9 Z0.4 25.7 26.1 27.5 23.4 22.0 Z1.9 21.3 23.4 24.4 26.5 23.8 Z3.7 26.5 0.8 0.4 0.8 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 Sidewall Core Analysis Report 89.0 81.1 94.6 94.9 95.8 76.1 91.7 93.3 96.3 91.9 97.9 91 .I 93.6 93.9 98.6 94.9 95.8 97.0 2,66 Mdst, dkgy, sdy, f-mgr qtz , lith frags, lam Z.70 Sltst, ltblgy, cly, sl talc , fri, lam, tr-l% pyr 2.76 Sltst, ltblgy, cly, cml¢ , fri, lam, tr-1% pyr Z.69 Sltst. ltgy, cly, calc . fri 2.69 Sltst, ltgy, cly, calc , fri 2.64 SS, ltgy, vfgro slty, vw srtdo sbang, fri, calc, lith frags 2.75 SS. ltgy, v¢-fgr, $1tyo w srtd. sbang, rri Z.70 Sltst, ltgy, cly, calo 2.67 SS, ltgyo vfgr, $1ty, w lrtd, sbang, ~ri. calc 2.67 SS. ltgy, v~gro $1ty. w srtd, sbang° ~rto calc 2.69 SS, ltgy, vf-rgr, $1ty, w srtd, sbang, tri. calc Z.78 Mdst, ltgy. calc. 2.70 SS. ltgy, vi'gr, $1tyo w srtd, sbang° ~ri, v calc, glau¢° lam g.68 SS, Itgy, vt'gr, $1ty, w mrtd. sbang, rri, v calc, glauc, 2.69 SS, ltgy. vfgr, slty, w =rtd, =bang, tri, v calc, glauco lam 2.68 SS. gngy, v~-fgr, pred fgro slty, w srtd, sbang, fri, v ¢alc, tndist lam g.69 SS, ltgy, vf-tgr, slty. w =rtd, sbang, fri, v calc, glauc, lam g.71 Calcite, vltgy, crystalline to granular 1 - I North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Litholo~ical Descri_D.~.ions Core # 1 101 1581.3 Mudstone - mdkgy, slty, tr-3% mica, tr pyr, fis, broken. 102 1582.5 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, lis, broken. 103 1583.5 Mudstone- mdkgy, slty, sl calc, 1-3% pyr, tr-3% carb frags, tr-3% mica, lis, broken. 104 1584.5 Mudston~ - mdkgy, slty, tr-3% mica, tr pyr, fis, broken. 105 1585.5 Mudstone - mgy, slty, tr-3% mica, tr-2% pyr, fis, broken. 106 1586.9 Mudstone- mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. 107 1587.3 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. 108 1588.5 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. 109 1589.9 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. 110 1590.2 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. 111 1591.5 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. 112 1592.8 Mudstone - mdkgy, slty, tr-3% mica, tr pyr, fis, broken. 113 1593.5 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. 114 1594.2 Mudstone- mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Litholoqica~ Descriptions 115 1595.2 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. 116 1596.7 Mudstone - mdkgy, slty, 1-3% pyr, tr-3% mica, fis, broken. Core #2 201 1597.5 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 202 1598.4 Mudston.e. - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, lis, broken. 203 1599.4 ~udstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 204 1600.6 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, lis, broken. 205 1601.5 Mudston9 - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 206 1602.3 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 207 1603.5 Sandstone - ltgy, vf-fgr, pred vfgr, w srtd, sbang- sbrd, fri, sl calc, composed of 50-60% qtz, 10-20% lith frags, 20-30% mtrx, broken. 208 1604.9 Sandstone - ltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, sl calc, composed of 50-60% qtz, 10-20% lith frags, 20-30% mrtx, broken. 209 1605.5 Sandstone - ltgy, vf-fgr, pred vfgr, w srtd, sbang- sbrd, fri, sl calc, composed of 50-60% qtz, 10-20% lith frags, 20-30% mtrx, broken. 210 1606.5 Sandstone - ltgy, vf-fgr, pred vfgr, w srtd, sbang- sbrd, fri, sl calc, composed of 50-60% qtz, 10-20% lith frags, 20-30% mtrx, frac. 211 1607.5 Sandstone - ltgy, vf-fgr, pred vfgr, w srtd, sbang- sbrd, fri, sl calc, composed of 45-55% qtz, 10-20% lith frags, 25-35% mtrx, frac. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed ..Lithological Descriptions 212 1608.6 Sandstone - ltgy, vf-fgr, pred vfgr, w srtd, sbang- sbrd, fri, sl calc, composed of 45-55% qtz, 10-20% lith frags, 25-35% mtrx, frac. 213 1609.6 Sandstone - ltgy, vf-fgr, pred vfgr, w srtd, sbang- sbrd, fri, sl calc, composed of 45-55% qtz, 10-20% lith frags, 25-35% mtrx, indist lam. 214 1610.6 Sandstone - ltgy, vf-fgr, pred vfgr, w srtd, sbang- sbrd, fri, sl calc, composed of 45-55% qtz, 10-20% lith frags, 25-35% mtrx, frae. 215 1611.5 Sandstone - ltgy, vf-fgr, pred vfgr, mod w srtd, sbang-sbrd, w cons, calc, composed of 40-50% qtz, 30-40% lith frags, 10-20% mtrx. 216 1612.4 Sandstone - ltgy, vf-fgr, pred vfgr, mod w srtd, sbang-sbrd, w cons, calc, composed of 40-50% qtz, 30-40% lith frags, 10-20% mtrx. 217 1613.4 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 218 1614.3 ~4udstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, lis, broken. 219 1615.5 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, lis, broken. 220 1616.5 Mudstone - ltgy, p cons, sl calc, tr mica, fis, broken. 221 1617.5 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 222 1618.5 Mudstone - ltgy, slty, mod w cons, sl calc, tr mica, tr pyr, fis, broken. 223 1619.5 Mudstone - mdkgy, mod w cons, sl calc, 1-5% mica, tr-3% pyr, fis, frac. 224 1620.5 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Lithological Desc~iDtion~ 225 1621.5 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 226 1622.5 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 227 1623.3 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 228 1624.7 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, fis, broken. 229 1625.7 Mudstone - mdkgy, mod w cons, 1-5% mica, tr-3% pyr, lis, broken. 230 1626.8 Mudstone - mdkg¥, slty, mod w cons, calc, 1-5%' mica, 3-8% pyr, fis, broken. Core # 3 301 1627.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, broken. 302 1628.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, frac (ireg spl). 303 1629.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, broken. 304 1630.5 Mudsto~ - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, lis, broken. 305 1631.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, broken. 306 1632.4 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, broken. 307 1633.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, broken. 308 1634.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, broken. 309 1635.2 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, broken. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Lithological Descriptions 310 1636.5 Sandstone - ltgy, vf-fgr, pred vfgr, w srtd, sbang- sbrd, w cons, calc, composed of 55-65% qtz, 3-8% lith frags, 25-35% mtrx. 311 1637.4 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, frac. 312 1638.2 Mudstone- mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. 313 1639.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, lis, broken. 314 1640.5 Mudstone -mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. 315 1641,5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. 316 1642.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. 317 1643.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, frac. 318 1644.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. 319 1645.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. 320 1646.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, frac. 321 1647.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. 322 1648.5 Mudstone -mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, (ireg spl). 323 1649.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis. 324 1650.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Qetailed Lithological Descriptions 325 1651.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, frac, (ireg spl). 326 1652.5 Mudstone - mdkgy, tr sd, mod cons, sl calc, tr-3% mica, tr-3% pyr, fis, broken. 327 1653.7 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, frac. 328 1654.5 Mudstone - mdkgy, mod cons, sl calc, tr-3% mica, tr- 3% pyr, fis, broken. Core #4 401 2090.5 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis, broken. 402 2091.8 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl lis, broken. 403 2092.5 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl lis, broken. 404 2093.6 Mudstone - mgy, slty, mod cons, calc, 3-8% mica, tr pyr, sl fis, broken. 405 2094.6 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis, frac, (ireg spl). 406 2095.5 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis, broken. 407 2096.5 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis, frac. 408 2097.5 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis, frac. 409 2098.5 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis. 410 2099.5 Mudstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis, (ireg spl). North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Litholoqical Description~ 411 2100.5 Siltstone - mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis, broken. 412 2101.5 Mudstone- mgy, slty, mod cons, calc, tr-3% mica, tr pyr, sl fis. Core # 5 501 2151.4 Sandstone- olvgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, composed of 60-70% qtz, 30-40% mtx, tr glauc, abnt mdy lams, poss sid-ank cmtd. 502 2152.4 Sandstone- mdkgy, vfgr, varg, w srtd, sbang-sbrd, mod cons, tr calc, composed of 50-70% qtz, 30-50% mtx, tr glauc, abnt mdy lams, (ireg spl). 503 2153.4 Sandstone - mdkgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, composed of 50-70% qtz, 30-50% mtx, tr glauc, abnt mdy lams, (ireg spl) . 504 2154.5 Sandstone - mdkgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, composed of 50-70% qtz, 30-50% mtx, tr glauc, abnt mdy lams, frac, (ireg spl). 505 2155.6 Mudstone - olvgy, abnt vfgr sd, mod cons, tr calc, bioturb, sdy filled burs. 506 2156.5 Mudstone - mdkgy, vsdy, mod cons, tr calc, 40% vfgr sdy lams, bioturb. 507 2157.5 Sandstone - mltgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, sl calc, composed of 55-65% qtz, tr-3% lith frags, tr-3% glauc, tr-3% pyr, 30-40% mtrx, frac. 508 2158.4 Sandstone - ltgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, sl calc, composed of 55-65% qtz, tr-3% lith frags, tr-3% glauc, tr-3% pyr, 30-40% mtrx, frac. 509 2159.4 Sandstone - mltgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, sl calc, composed of 55-65% qtz, tr-3% lith frags, tr-3% glauc, tr-3% pyr, 30-40% mtrx. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Lithologica% DescriPtions 510 2160.4 Sandstone - mltgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, sl calc, composed of 55-65% qtz, tr-3% lith frags, tr-3% glauc, tr-3% pyr, 30-40% mtrx. 511 2161.5 Sandstone - mltgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, sl calc, composed of 55-65% qtz, tr-3% lith frags, tr-3% glauc, tr-3% pyr, 30-40% mtrx. 512 2162.5 Sandstone - mltgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, sl calc, composed of 50-60% qtz, 3-8% glauc, tr-3% lith frags, tr-3% pyr, 30-40% mtrx. 513 2163.6 Sandstone - mltgy, vfgr, arg, w srtd, sbang-sbrd, mod cons, sl calc, composed of 55-65% qtz, tr-3% lith frags, tr-3% glauc, tr-3% pyr, 30-40% mtrx, broken. 514 2164.4 Sandstone- ltgy, vf-fgr, pred vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 50-60% qtz, 5-15% glauc, tr-l% lith frags, 25-35% mtrx, lam. 515 2165.5 Sandstone - ltgy, vf-fgr, pred vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 55-65% qtz, 3-8% glauc, tr-l% lith frags, 25-35% mtrx, frac. 516 2166.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 50-60% qtz, 5-15% glauc, tr- 1% lith frags, 25-35% mtrx, lam. 517 2167.4 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 50-60% qtz, 5-15% glauc, tr- 1% lith frags, tr pyr, 25-35% mtrx, lam. 518 2168.5 Sandstone - ltgy, vf-fgr, pred vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 55-65% qtz, 3-8% glauc, tr-l% lith frags, 25-35% mtrx. 519 2169.5 Sandstone - ltgy, vf-fgr, pred vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 55-65% qtz, 3-8% glauc, tr-l% lith frags, 25-35% mtrx. 520 2170.5 Sandstone - ltgy, vf-fgr, pred vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 60-70% qtz, tr-3% glauc, tr-l% lith frags, 25-35% mtrx, lam. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Lithological Descriptions 521 2171.4 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-3% lith frags, tr glauc, 25-35% mtrx, indist lam. 522 2172.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-3% lith frags, tr glauc, tr mica, 25-35% mtrx, indist lam. 523 2173.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-3% lith frags, tr glauc, 25-35% mtrx, indist lam. 524 2174.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-3% lith frags, tr glauc, 25-35% mtrx, indist lam. 525 2175.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, 'calc, composed of 65-75% qtz, tr-3% lith frags, tr glauc, 25-35% mtrx, indist lam. 526 2176.7 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-3% lith frags, tr-2% glauc, 25-35% mtrx, indist lam. 527 2177.4 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-3% lith frags, tr glauc, 25-35% mtrx, indist lam. Core #6 601 2180.3 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr glauc, tr lith frags, 25-35% mtrx, indist lam, frac. 602 2181.6 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 70-80% qtz, tr-3% glauc, tr lith frags, 20-30% mtrx, indist lam. 603 2182.6 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr glauc, tr lith frags, 25-35% mtrx, indist lam. 604 2183.4 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 70-80% qtz, tr-3% glauc, tr lith frags, 20-30% mtrx, indist lam, frac. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Litholo~ical Descriptions 605 2184.4 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 70-80% qtz, tr-3% glauc, tr lith frags, 20-30% mtrx, indist lam, broken. 606 2185.4 Sandstone- ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 70-80% qtz, tr-3% glauc, tr lith frags, 20-30% mtrx, indist lam, broken. 607 2186.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 70-80% qtz, tr-3% glauc, tr lith frags, 20-30% mtrx, indist lam, broken. 608 2187.5 Sandstone- ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, sl calc, composed of 65-75% qtz, tr glauc, tr lith frags, 25-35% mtrx, indist lam. 609 2188.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 60-70% qtz, tr lith frags, 30-40% mtrx, indist lam, broken. 610 2189.6 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-2% lith frags, tr glauc, 25-35% mtrx. 611 2190.4 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-2% lith frags, tr glauc, 25-35% mtrx, indist lam, frac. 612 2191.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-2% lith frags, tr glauc, 25-35% mtrx, indist lam, broken. 613 2192.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr glauc, tr lith frags, 25-35% mtrx, indist lam, frac. 614 2193.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr glauc, tr lith frags, 25-35% mtrx, indist lam. 615 2194.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 70-80% qtz, tr-3% glauc, tr lith frags, 20-30% mtrx, indist lam. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Lithological Descriptions 616 2195.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr glauc, tr lith frags, 25-35% mtrx, indist lam. 617 2196.4 Sandstone- ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr glauc, tr lith frags, 25-35% mtrx, indist lam. 618 2197.6 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr-3% lith frags, tr glauc, 25-35% mtrx, indist lam. 619 2198.7 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, tr glauc, tr lith frags, 25-35% mtrx, indist lam. Core # 7 701 2200.6 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr-3% glauc, tr pyr, 25-35% mtrx, indist lam. 702 2201.6 Sandstone - mgy, vfgr, arg, w srtd, sbang-sbrd, sl fri, calc, composed of 50-60% qtz, 3-8% lith frags, tr-3% glauc, 30-40% mtrx, indist lam. 703 2202.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, fri, calc, composed of 60-70% qtz, 3-8% lith frags, tr-3% glauc, tr pyr, 20-30% mtrx, indist lam, frac. 704 2203.7 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr-3% glauc, tr pyr, 25-35% mtrx, indist lam, frac. 705 2204.5 Sandstone - mgy, vfgr, arg, w srtd, sbang-sbrd, sl fri, calc, composed of 50-60% qtz, 3-8% lith frags, tr-3% glauc, 30-40% mtrx, indist lam, frac. 706 2205.7 SiltstOne - mltgy, vwcons, sl calc, poss sid cmt. 707 2206.5 Sandstone - mgy, vfgr, arg, w srtd, sbang-sbrd, vwcons, calc, composed of 50-60% qtz, 3-8% lith frags, tr-3% glauc, 30-40% mtrx, indist lam. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage petailed Lithologica~ Descriptions 708 2207.4 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr-3% glauc, tr pyr, 25-35% mtrx, indist lam, frac. 709 2208.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr-3% glauc, tr pyr, 25-35% mtrx, indist lam, frac. 710 2209.4 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr-3% glauc, tr pyr, 25-35% mtrx, indist lam. 711 2210.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr-3% glauc, tr pyr, 25-35% mtrx, indist lam. 712 2211.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr carb frags, tr glauc, 25-35% mtrx. 713 2212.2 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 60-70% qtz, 3-8% lith frags, tr glauc, 20-30% mtrx, indist lam. 714 2213.5 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam, frac. 715 2214.6 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam, frac. 716 2215.5 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam, (ireg spl). 717 2216.5 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam. 718 2217.5 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Litholoqical Descri_Dtions 719 2218.5 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam. 720 2219.4 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam, frac. 721 2220.5 Mudstone - mltgy, sdy, pcons, fis, broken. 722 2221.5 Sandstone..- mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam. 723 2222.5 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam, frac. \ 724 2223.5 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, tr pyr, 15-25% mtrx, indist lam. 725 2224.1 Sandstone - mgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, tr pyr, 15-25% mtrx, indist lam, frac. 726 2225.4 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 60-70% qtz, 2-6% lith frags, tr glauc, 25-35% mtrx, indist lam. 727 2226.4 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, sl fri, v calc, composed of 60-70% qtz, tr-3% lith frags, 30-40% mtrx, indist lam, frac. 728 2227.5 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, sl fri, v calc, composed of 65-75% qtz, tr-3% lith frags, 25-35% mtrx, indist lam, broken. 729 2228.2 Sandstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, sl fri, v calc, composed of 65-75% qtz, tr-3% lith frags, tr glauc, 25-35% mtrx, indist lam, frac. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed ~ithologica~ D. es~i~Dtions Core 801 2228.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, v calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 802 2229.5 Sandstone- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, v calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 803 2230.5 Sandston~- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, v calc, composed of 40-50% qtz, 3-8% glauc, 2-5% lith frags, 30-40% mtrx, indist lam. 804 2231.5 Sand. stone- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, v calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 805 2232.6 Sandstone.. - ltgy, vf-fgr, pred vfgr, mod w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 806 2233.5 Sandstone - yelgy, vf-fgr, pred vfgr, 1-20mm fossils, mod w srtd, sbang-sbrd, w cons, v calc, composed of 25-35% qtz, 10-20% foss, 5-15% lith frags, tr glauc, tr pyr, 30-40% mtrx. 807 2234.5 Sandstone - ltgy, vf-fgr, pred vfgr, mod w srtd, sbang-sbrd, sl fri, sl calc, composed of 60-70% qtz, 3-10% lith frags, tr glauc, 20-30% mtrx, indist lam, broken. 808 2235.5 Sandstone - vltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, calc, composed of 65-75% qtz, 3-8% lith frags, 15-25% mtrx, broken. 809 2236.6 Sandstone - vltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, calc, composed of 65-75% qtz, 3-8% lith frags, 15-25% mtrx, indist lam, broken. 810 2237.5 Sandstone - vltgy, vf-fgr, pred fgr, slty, mod w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, 3-8% lith frags, 15-25% mtrx, indist lam, broken. North Slope Borough NSB #6 South Barrow Unit Nqrth Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Petalled Lithologica~ Descri_Dtions 811 2238.5 Sandstone - vltgy, vf-fgr, pred fgr, slty, mod w srtd, sbang-sbrd, fri, calc, composed of 65-75% qtz, 3-8% lith frags, 15-25% mtrx, indist lam, broken. 812 2239.5 Sandstone- vltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, calc, composed of 65-75% qtz, 3-8% lith frags, 15-25% mtrx, broken. 813 2240.5 Sandstone - vltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, sl fri, calc, composed of 60-70% qtz, 3-8% lith frags, 20-30% mtrx, indist lam, frae. 814 2241.5 Sandstone - vltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, calc, composed of 65-75% qtz, 3-8% lith frags, 15-25% mtrx, broken. 815 2242.5 Sandstone - vltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, calc, composed of 65-75% qtz, 3-8% lith frags, 15-25% mtrx, broken. 816 2243.5 Sandstone - vltgy, vf-fgr, pred fgr, w srtd, sbang- srtd, fri, calc, composed of 65-75% qtz, 3-8% lith frags, 15-25% mtrx, indist lam. 817 2244.6 Sandstone - vltgy, vf-fgr, pred fgr, w srtd, sbang- srtd, w cons, calc, composed of 55-65% qtz, 3-8% lith frags, 25-35% mtrx, indist lam, frac. 818 2245.6 Sandstone - ltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, sl fri, sl calc, composed of 65-75% qtz, 3-8% lith frags, tr-3% glauc, 15-25% mtrx, indist lam, broken. 819 2246.5 sandstone - ltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, sl fri, sl calc, composed of 65-75% qtz, 3-8% lith frags, tr-3% glauc, 15-25% mtrx, indist lam. 820 2247.5 Sandstone - ltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, sl fri, sl calc, composed of 65-75% qtz, 3-8% lith frags, tr-3% glauc, 15-25% mtrx, indist lam. 821 2248.4 Sandstone- ltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, sl calc, composed of 65-75% qtz, 3-8% lith frags, tr glauc, 15-25% mtrx, indist lam, frac. North Slope Borough NS~ #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Lithological Descriptio~, 822 2249.5 sandstone - ltgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, composed of 70-80% qtz, 3-8% lith frags, tr-3% glauc, 20-30% mtrx, indist lam. 823 2250.5 Sandstone- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, sl calc, composed of 70-80% qtz, tr-3% lith frags, tr glauc, 20-30% mtrx, indist lam. 824 2251.3 S~andsto.n~e - mltgy, vf-fgr, mod w srtd, sbang-sbrd, mod cons, calc, composed of 70-80% qtz, tr-3% lith frags, tr glauc, 20-30% mtrx, indist lam. 825 2252.5 _Sandstone - mltgy, vf-fgr, mod w srtd, sbang-sbrd, mod cons, calc, composed of 70-80% qtz, tr-3% lith frags, tr glauc, 20-30% mtrx, indist lam. 826 2253.5 Sandston9- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, sl calc, composed of 70-80% qtz, tr-3% lith frags, tr glauc, 20-30% mtrx, indist lam, frac. 827 2254.5 ~andstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, mod cons, sl calc, composed of 70-80% qtz, tr-3% lith frags, tr-l% pyr, tr glauc, 20-30% mtrx, indist lam, broken. 828. 2255.4 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, sl calc, composed of 70-80% qtz, tr-3% lith frags, tr glauc, 20-30% mtrx, indist lam. 829 2256.7 ~andstone - ltgy, vfgr, slty, w srtd, sbang-sbrd, mod cons, sl calc, composed of 70-80% qtz, tr-3% lith frags, tr glauc, 20-30% mtrx, indist lam. 830 2257.5 Sandston9 - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, sl calc, composed of 70-80% qtz, tr-3% lith frags, tr glauc, tr pyr, 20-30% mtrx, lam. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Litholo_~ica~ Descriptions Core #9 901 2258.5 Sandstone - yelgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, calc, composed of 65-75% qtz, tr lith frags, tr glauc, 25-35% mtrx, indist lam. 902 2259.0 Sandstone- yelgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, calc, composed of 65-75% qtz, tr lith frags, tr glauc, 25-35% mtrx, indist lam. 903 2260.5 SandstQne. - yelgy, vf-fgr, pred fgr, w srtd, sbang- sbrd, fri, calc, composed of 65-75% qtz, tr lith frags, tr glauc, 25-35% mtrx, indist lam. 904 2261.1 Sandston$- ltgy, vfgr, v slty, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 905 2262.5 Sandston~ - ltgy, vfgr, v slty, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 906 2263.5 Sandstone - ltgy, vfgr, v slty, w srtd, sbang-sbrd, mod cons, calc, composed of 50-60% qtz, 5-15% lith frags, tr-glauc, 25-35% mtrx, indist lam. 907 2264.5 Sandstone - ltgy, vfgr, v slty, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 908 2265.5 Sandston9 - ltgy, vfgr, v slty, w srtd, sbang-sbrd, sl fri, calc, composed of 45-55% qtz, 3-8%1ith frags, tr glauc, 20-30% mtrx, indist lam. 909 2266.5 Sandstone - ltgy, vfgr, v slty, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 910 2267.6 Sandstone - ltgy, vfgr, v slty, w srtd, sbang-sbrd, sl fri, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 911 2268.6 Sandstone - ltgy, vfgr, v slty, w srtd, sbang-sbrd, sl fri, calc, composed of 65-75% qtz, tr lith frags, tr glauc, 15-25% mtrx, indist lam. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Detailed Litholo~ical DescriDtions 912 2269.5 Sandstone - ltgy, vfgr, v slty, w srtd, sbang-sbrd, sl fri, calc, composed of 65-75% qtz, tr lith frags, tr glauc, 15-25% mtrx, indist lam, filled frac. 913 2270.5 Sandstone- ltgy, vfgr, v slty, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 914 2271.5 Sandstone - ltgy, vfgr, v slty, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 915 2272.5 sandstone..- ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 60-70% qtz, 3-8% lith frags, tr glauc, 20-30% mtrx, indist lam. 916 2273.5 Sandstone- ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 60-70% qtz, 3-8% lith frags, tr glauc, 20-30% mtrx, indist lam. 917 2274.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 60-70% qtz, 3-8% lith frags, tr glauc, 20-30% mtrx, indist lam. 918 2275.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, sl fri, calc, composed of 60-70% qtz, 3-8% lith frags, tr glauc, 20-30% mtrx, indist lam. 919 2276.5 Sandstone- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 920 2277.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 921 2278.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, m~d cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 922 2279.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. North Slope Borough NSB #6 South Barrow Unit North Slope, Alaska Date: 6-23-88 File : BP-3-1266 Lower Cret.- Jurassic Analysts: TLS;TDT Lab : Anchorage Retailed Litholo~ical Descriptions 923 2280.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 924 2281.5 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 925 2282.5 Sandstone- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 926 2283.'5 ~!~_t_gDe- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, calc nod, indist lam. 927 2284.2 Sandstone- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 928 2285.5 Sandstone- ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 929 2286.4 Sandstone - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 930 2287.2 Sandston9 - ltgy, vfgr, w srtd, sbang-sbrd, mod cons, calc, composed of 55-65% qtz, 3-8% lith frags, tr glauc, 25-35% mtrx, indist lam. 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TCL TRIP CHLORIDES NR NO RETURNS "'"~' ~6"-~:0'°~1 N_Baroid Loggi'ng m,, Baroid Logging Systems Division NB NEW BIT EL ELECTRIC LOG NCB NEW CORE BIT CO CIRCULATE OUT CHERT Systems WELl his B- 6 DST DRILL STEM TEST CKF CHECK FOR FLOW ~ I~ A A,,~'I ~,'['LJ'~) ~ TG TRIP GAS ~,AAAAI COMP.,G, NY hiORTH. SLOPE BOROUGH SAND SHALE LIMESTONE DOLOMITE LIG-COAL LOG ~< [~] ppm LOG-HYDROCARBONS IN MUD (M=IO00) . CUTTINGS DRILLING RATEo~ E~ GAS LOG-% GAS IN MUD AIR/GAS ANALYSIS ANALYSIS ~ TOTAL GAS__ C~ FT. PER HR. -<-~ LITHOLOGY LITHOLOeY ,,, . ~tETHANE___ ~ [~ GAS LOG-UNITS OF GAS IN AIR ~ ! C~ C::, C3 C4 C5' REMARKS [--] MIN. PER FT. GST PERCENT INTER--- OM 5M IOM 5 M 2 5M 2.5M 2.5M PRETiVE -r~LIiu ? V ~ 'v V °/° V V V V v :500 200 I00 NITs 50 I00 IF- .... - Illlll / ........... E'" ..... t--t .- '! t' i 11[I I I I i I I ' t~--- ~--- I-HIt ..... I~uJo, i i i SD-clr, fgr, sbrnd, uncor ................... 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I 11111 I1111 1 i I- ....Illllil 11 1111 CLY-llgy,plstc~$1¢alc~ H .... Illlk'l:: IG E ~ 11 1111 I1 111 I v sft H- ' !-!I lhl llt111 il-- r- - - --IJllil 111 ! I 1 J H ..... Illlil 11 11 I 1 [ I~ ;--- I11tl ; .... 11 1111 I H- ~- - -- lllll 111111 I IP I1111 11 I!11 CL¥-a/o H- r -- IIIBI 11 1111 ~ 111111 · iii,,,, Barold Logging Systems Division VELL_ NSB-6 ;OMPANY.,, NORTH SLOPE BOROUGH .OCATION BARROW, ALASKA DRILLING RATE o [~ FT. PER HR. -<. LITHOLOGY F-'] MIN. PER FT. G S T PERCENT 300 200 I00 INTER- PRETIVE TCL TRIP CHLORIDES NB NEW BIT NCB NEW CORE BIT DST DRILL STEM TEST TG TRIP GAS SAND SHALE [~] p )m LOG-HYDROCARBONS IN MUD (M=IO00) . E] GAS LOG-°/o GAS IN MUD AIR/GAS ANALYSIS [~ GAS LOG-UNITS OF GAS IN AIR CI· OM 5M IOM ,5 M $1Lt$IUNE GRAVLL LIMESTONE [~)LOMITE LIG-COAL ~LT.Li_LH i~' / II CUTTINGS · , ANALYSIS ~AL METH~E, UNITS 50 I 0 0 N_ Baroid Logging Systems LOG REMARKS CLY- Itgy, plstc, slty, tr st,, vsft CLY- o/o SH- blk, carb, s Ity, frm CLY-Itgy, plstc, sity,sl c01c, vsft SLTST- Itgy, clyy, si c~ic, sfl CLY- Itgy ,gmmy, slty,vsft ~i~,t!~,,,~,~ Baroid Logging Systems Division 'ELL N 5~-- ~: DMPANY,, NuR~H SL. UPE BOROUGH DCATION BARROW, DRILLING RATE [~ FT. PER HR. GS E~ MIN. PER FT. )0 200 I00 TCL TRIP CHLORIDES NB NEW BIT NCB NEW CORE BIT DST DRILL STEM TEST TG TRIP GAS SAND SHALE !:::'-:1 LEGEND NR NO RETURNS EL ELECTRIC LOG CO CIRCULATE OUT CKF CHECK FOR FLOW LIMESTONE OOLOMITE [F-T-T-1 !1 I II ~ LITHOLOGY PERCENT INTER- PRETIVE ppm LOG-HYDROCARBONS IN MUD (M=IO00) GAS LOG-% GAS IN MUD AIR/GAS ANALYSIS GAS LOG-UNITS OF GAS IN AIR_ C~ OM 5M IOM 5M .,. V ~/ V , V V UNITS 50 100 SIFTSTONE CUTTINGS ANALYSIS TOTAL GAS METHANE GRAVEL CHERT LIG-COAL N_ Baroid Logging Systems LOG REMARKS CLY-Itgy,gmmy, slty,vsf t SLTST-Itgy, mic,clyy, si calc, frm tr PYR CLY'-incr slty CLY- gy,g mmy, slty, vsft SL.TST- mgy,clyy, mic ip, sft-frm SS- Itgy, fg r, sbrnd, msrt, calc cmt ip,uncons,nsofc CLY-Itgy-g y, plstc-gmmy, vsft SS- gy,v f gr, rnd, msrt, pr ly cons,sme gr fstd,nsofc CELL .... NSB-6 ;OMPANY NORTH SLOPE BOROUGH DCATION BARROW, ALASKA [~ FT. PER HR. ~ ILITHOLOGY I r'"] MIN. PER FT. (3 STI PERCENT I 300 200 I00 LITHOLO( INTER- PRETIVE TCL TRIP CHLORIDES NR NO RETURNS NB NEW BIT EL ELECTRIC LO(; NCB NEW 60RE BIT CO CIRCULATE OUT DST DRILL STEM TEST CKF CHECK FOR FLOW TG TRIP GAS SAND SHALE LIMESTONE DOLOMITE i, ] i i] I/ //I [~ ppm LOG-HYDROCARBONS IN MUD (M=IOOO) E] GAS LOG-°/o GAS IN MUD AIR/GAS ANALYSIS [] GAS LOG-UNITS OF GAS IN AIR Ci OM 5 IO 5 IOO SILl STONE GRAVEL CHERT LIG-COAL CUTTINGS ANALYSIS TOTAL GAS, METHANE, N_ Boroid Logging System~ LOG REMARKS St_TS T- Itgy-g y, sht y, cl ~ y, frm __V__V ~L... V V--4V CLY-ttgy-gy, gmmy, vsft y,vtgr, sbrnd,pcons, slty, nsofc SH- dkgy, bli~, blky-pity, carb, frm-vfrm tr PYR SH-blk,blky,corb,mhd, w xy ADnt PYR SS-Itgy-gy, clr, vf-mgr, sbrnd,psrt, uncons, nsofc TUFF-wh, micxln,vfrm SH-btk ,dkgy, miclam, fiss ip, slty,corb,pyr, si calc, rrm ~$- cIr, gy, m-fgr, sbang- rnd, uncon$, nsofc Abnt PYR SH-a/a LS -m br ngy, crpx in, shly ~ vfrm- mhd l[l llll)ll BAROID LOGGING SYSTEMS ,OUSTON, ?X Oil Compony NORTH SLOPE BOROUGH APl No .... 50-0~3-~00~6 Well. N SB ~ 6 Field.,, WILDCAT SOUTH BARROW UNIT Borough/Coun~ ..... NORTH SLOPE _Store ALASKA I L~ation1850'FEL,2000FSLsec.,. 6 Twp 21 N Rge~Mrd~ , E le~ti?n Permo~nf Datum Mean See Level Ei~otion 0 K.B. 46 Log Measured From_ KB 46 Ft. Able Perm. D~tum D.F.~ Drilling Measured From Keli Bushin G.L. Logged Fearn-- 165 Ft To_~5~ Ft Supv. Engr_ D. WILSON Unit No. 7473 Dates Logged _ 5/14 /~ To 3/26/88 Mud Types, Native GEL Ta 1574 D~ffi Measured From KB Newdrill KCL ~iymer To. 2550 , ABBREVIATIONS LITHOLOGY NB NEW BIT CLAY/CLAY~ONE NCB N~ CORE BIT SHALE RR RE~UN BIT / ~ ~o c~cu~ ou~ s~/s~o~ ~- '" .1 WOE WEIGHT ON BIT ~ SAND/SAND~E. :: PP PUMP PRESSURE COA~LIGNiTE, ETC. l ' TG TRIP gAS , IV vVv. V OTG DOWN TIME GAS e TUF ~ s.o.T ~.,. ~s " r'.'~_, TCL T~IP CHLORIDES ~ · CKF CHECK FOR FLOW ~ Ala~,~,,~as~,~ Cons. Comais~io~! DS DIRECTIONAL ~RVEY I I DC DEPTH CORRECTION~ [:~ / /~ NR NO RETURNS DOLOMIT:cho~;~hTe DST DRILL ~EM TE~ IGNEOUS UNDIFFERENTIATED IAAAAA~] [ '~ MUD PROPERTIES : METAMORPHIC ROCK ' V VISCOSITY~ APl, seconds F FILTRATE, API~ cc's )H HYDROGEN ION CONCENTRATION i VISUAL POROSITY 6 0IL INITIALS CL CHLORlO~S~ppm GL m ,T--TRACE, S--SLIGHT G-GOOD Orillin~ Coniructor GRACE DRILLING RIG No. ~11 Log~in9 Engineers_ M, MOORE, ~, WILSON ~ L E t3 ~ i'~ D SILTS'TONE GRAVEL 'l,m, Baroid Logging Sy~ems Division Ne NEW BIT EL ELE~IC mG NCB NEW ~E BIT CO CIRCULATE OUT CHERT Systems WELL' NSB-6 DSTTG TRIpDRILLG~ST~ TEST CKF CHECK FOR F~W COMPANY ...... NORTH SLOPE BOROUGH SAND SHALE LIME,ONE ~MITE - LIG-COAL LOG LOC T,ON I:'"'1 DRILLING RATE ~~ . ~ ppm LOG-HYDROCARBONS IN MUD {M=IO00) CUTTINGS ~ ~ GAS LOG-% GAS IN MUD AIR/GAS ANA~SIS ANALYSIS ....... ~ ~ ~ ~ GAS LOG-UNITS OF eAS IN AIR ~AL GAS~ ~ FT. PER HR. ~ ~ L~T~OGY~ ~THOLOGY m .... METHANE___ ~ MIN. PER FT. G S T ~PER~ENT ~NTER- ~ CI CZ C3 C4 c5+ ' REMARKS E ~ OM 5M IOM 5M ' 2.5M 2.5M 2.5M ~ ~'? TIVE ~ ~ ~ ~ ~ ~G UNITS 50 J O0 ~ ,, ,, ~ ~;- ,, CLY- gy, gmmy, 5ft ~r; ~- ~ ,~,.,-,.u L ~ H ~- -~ , r1~J~- t~.,() SLTST-Itgy,mic,sdyip, , _l ~- - ' ~ Ca i) (:hr(r~(tt (i(ls ){ti slcalc~frm-vfrm ] IH~ ..... o HH- - -. O - ~ _ . : '. '.'. '. · SS/SD-clr,gy, f-mgr, r~. I J ~;_-",. , I J H .... , cmtd w/sltst~ calc, ~ ~ - -. ' .... ="' . ns0fc - ~H- ~-..' - ~ .............. tr FOSS shell frag - ~ , CLY- gy,gmmy, vsft ~ ~___ [ ~[ .... ~~ I COAL-blk, vit, brit, vfrm I ..... ~ ~_= _ ~ SD- clr, gy, fgr,r~- sbrn( ~ ~: . uncons, nsofc - - · ' ..... S LTST- itgy, Tic, cly y,tr [ ~ -'- '~1 ~y~ si calc,frm I ~ ...... BH - -_,.,........ IN~- -- : ~ ;~ _. CLY-gy,~my, vsft ...... ! - .: ~.: ~ . o CLY-gy,gmmy, sdy ip,vsfl WELL, NSB-6 COMPANY NORTH SLOPE BOROUGH LOCATION BARROW, ALASKA TCL TRIP CHLORIDES NR NO RETURNS NB NEW BIT EL ELECTRIC LOG NCB NEW CORE BIT CO CIRCULATE OUT DST DRILL STEM TEST CKF CHECK FOR FLOW TG TRIP GAS SAND SHALE LIMESTONE DOLOMITE t:::'.:'l F---J FFr SILfSIONE I' I !il FT. PER HR. ~ ILITHOLOGY I MIN. PER FT. G S TI PERCENT I 300 200 I00 INTER- PRETIVE [~ p )m LOG-HYDROCARBONS IN MUD (M=IOOO) E~ GAS LOG-O/fo GAS IN MUD AIR/GAS ANALYSIS [~] GAS LOG-UNITS OF GAS IN AIR C~ OM 5M IOM 5 M UNITS 50 IO O GRAVEL ~:.~3: oo;I CHERT & LIG-COAL CUllinGS ANALYSIS ~AL METH~E, N_ Baroid Logging Systems LOG ' REMARKS SD-c Ir, fgr, s brnd, u ncen~ nsofc COAL- blk,vit, bril,vfrm gy, gmmy, vsft CLY-a/a CLY-gy, grrrny, vsft , ',,it, cone frae, mhd SS-gy-clr, f-mgr, ms't, uncons __CLY-itgy ,plstc, si calc, vsft CLY- ato [JJ ,,,~ Baroid Logging Systems Division YELL NSB-6 ;OMPANY,, NORTH SLOPE BOROUGH .OCATION BARROW, ALASKA DRILLING RATE !i! J~ FT. PER HR. --4 -< LITHOLOGY G S T PERCENT E~] MIN. PER FT. 3OO 2OO IOO INTER- PRETIVE TCL TRIP CHLORIDES NR NO RETURNS NB NEW BIT EL ELECTRIC LOG NCB NEW CORE BIT CO CIRCULATE OUT DST DRILL STEM TEST CKF CHECK FOR FLOW T6 TRIP GAS SAND SHALE LIMESTONE~:)LDMITE I:::::i I-----t SILTSTONE ! I J~J ppm LOG-HYDROCARBONS IN MUD (M=IO00) . E] GAS LOG-% GAS IN MUD AIR/GAS ANALYSIS ~-J GAS LOG-UNITS OF GAS IN AIR_ CI. .OM 5M IOM' .5 M UNITS 50 I0 0 GRAVEL ~' N_ Baroid Logging Systems LiL LO(; CUTTINGS ANALYSIS TOTAL GAS__ METHANE REMARKS · CLY- Itgy, plstc, slty, tr si,, vsft CLY- o/o SH- blk, corb, s Ity, frm CLY-Itgy, plstc, slty, si calc, vsft SLTST- itcjy, clyy, si calc, sft CLY- Itgy ,gmmy, sity,vsft ! !ill,,~, Baroid Logging Systems Division )MPANY ,~[)RrH $CuPE _BOROUGH )CATION BARROW, ALASKA DRILLING RATE ~ C~] FT. PER HR. -~ GST O MIN. PER FT. LITHOLOGY PERCENT LITHOLOG¥ INTER- PRETIVE ~0 200 I00 TCL TRIP CHLORIDES NB NEW BIT NCB NEW CORE BIT DST DRILL STEM TEST TG TRIP GAS SAND SHALE LEGE'ND ................. NR NO RETURNS EL ELECTRIC LOG CO CIRCULATE OUT CKF CHECK FOR FLOW SII~TSTONE LIMESTONE DOLOMITE GRAVEL CHERT AAAAAAI LIG-COAL [~ppm LOG-HYDROCARBONS IN MUD (M=IOOO) GAS LOG-°/o GAS IN MUD AIR/GAS ANALYSIS GAS LOG-UNITS OF GAS IN AIR gl OM 5M IOM I CUTTINGS!' ANALYSIS ~ TOTAL GA$--I METHANE I N_ Baroid Logging Systems LOG REMARKS CLY-Itgy,gmmy, slty,vsf t SLTST-Itgy, mic,clyy, si calc, frm tr PYR CL¥- incr sit y CLY- gy,gmmy, slty, vsft SLTST- mgy,clyy, mic ip, sft-frm SS-Itgy, fg r,sbrnd, msrt, calc crnt Ip ,u ncons, nsofc CLY-Itgy-g y, plstc-gmmy, vsft ~SS-gy,vfgr,rnd, msrt, prly cons,sme gr fstd,nsofc llJ,,~,, Baroid Logging Systems Division VELL N $ B- 6 :OMPANY .OCATION NORTH SLOPE BOROUGH BARROW, ALASKA DRILLING RATE [~] FT. PER HR. ['-'] MIN. PER FT. 5OO 200 IOO LEGEND TCL TRIP'CHLORIDES NR NO RETURNS NB NEW BIT EL ELECTRIC LOG NCB NEW CORE BIT CO CIRCULATE OUT DST DRILL STEM TEST CKF CHECK FOR FLOW TG TRIP GAS SAND SHALE LIMESTONE DOLOMITE I, ] I Il I-L/-ZT'~ SILTSTONE ! I r'~ ppm LOG-HYDROCARBONS IN MUD (M=IOOO) E] GAS LOG-°k GAS IN MUD AIR/GAS ANALYSIS {~ GAS LOG-UNITS OF GAS IN AIR_ C~ OM 5 I0 5 ,o Ioo GRAVEL CHERT LIG-COAL CUTTINGS ANALYSIS TOTAL GAS__ METHANE N... Boroid Logging Systems LOG REMARKS SLTS T-Itgy-g y, shly ,cly y, rrm CLY- ltgy--gy, gmmy, vsft gy,vtgr, sbrnd,pcons, stty, nsofc SH- dkgy, blK, blky-plty, car b, frm- vfrm tr PYR __V__V __V.... I.' V S H- bll~ ~ bi ky,corb, mhd, w xy AUnt PYR SS- Itgy-cjy, ¢lr, vf- mgr, sbrnd, psrt, uncons, nsofc TUFF-wh, micxln,vfrm SH-blk ,dkgy, miclam, riss ip, sity,carb,pyr, si calc, rrm SS-clr,gy, m-fgr, sbang- rnd, uncons, nsofc Abnt PYR SH-o/o LS-mbrngy~ crpxln,shly, vfrm-mhd BAROID LOGGING SYSTEMS ,ous~o,. Tx Oil Company NORTH SLOPE BOROUGH 4P~ No. 50-093- gO0~6 ,,, NSB~ 6 Field, WILDCAT .. , S~UTH .~ARRO~ UNIT .... Borough/ Coun~ ., NORTH SLOPE ,.. store A~ASKA L~ation 185,¢' FEL ,2000FSLsec 6 Twp ..2Ii N 17 W Mrd Rge Perme~nf Dofum .M.e~ SeQ Level ,. Ei~otion O K.B. i4~: - Log Measured From K~ . ~ Ft. Ab~e Perm. Datum D.F..i Drilling Measured From, Kelly, ~ushinq ....... Logged ~om 165 Ft To 2~50 ft Supv. Engr D. WILSON Unit No. Dates Lagged ~/14/8~ To_~/26/88 Mud Types~N. ative GE~ T~ 1~74 Ff D~ Measured From KB , Newd[iil KCL ~lymer To...2550 Ft I II I I I I I III I I I I J I I II i I i i iii I i I ABBREVIATIONS LITHOLOGY NB NEW BIT BN bit NUMBER SHALE · RR RE~UN BIT SILT/SILT~ON E co CIRCULATE OUT ~T LOGGED AFar TRIP ' SAND/SAND~E WOB WEIGHT ON BIT RPM REVOLUTIONS PER MINUTE , GRAVEL/CONG~MERATE GPM GALLONS PER MINUTE PP PUMP PRESSURE COAL~LIGNITE, ETC. TCL TRIP CHLORIDES ~ CKF CHECK FOR FLOW LIME.ONE /~F'~ {.; DS DIRECTIONAL ~RVEY ' DC DEPTH CORRECTION DST DRILL ~EM TE~ m ~ ' ~ ~AAAAA MUD PROPERTIES METAMORPHIC ROCK V VISCOSITY~ APl, seconds " F FILTRATE, APl, cc's pH HYDROGEN ION CONCENTRATION VISUAL POROSITY ~ OIL INITIALS CL CHLORIDES ~ ppm CL T-- ~RACE S--SL I GHT i i I_ II i lit I , .~ ii i i i I i ii i II Drilling Confroctor_ ~R~CE D~ILLING RIG NO,_~ZII , M, MOORE, D, WILSON " Logging Engineers , ~ ........ I I I IIII II I II I II I I II I I lilJ~,,~ Boroid Logging Systems Division WELL' NSB-6 COMPANY, NORTH SLOPE BOROUGH LOCATION BARROW, ALASKA DRILLING RATE r~ FT. PER HR. J--J MIN. PER FT. )0 I00 TCL TRIP CHLORIDES NR NO RETURNS NB NEW BIT EL ELECTRIC LOG NCB NEW CORE BIT CO CIRCULATE OUT DST DRILL STEM TEST CKF CHECK FOR FLOW TG TRIP GAS SAND SHALE LIMESTONE DOLOMITE ,SILl ! I -< LITHOLOGY G S T PERCENT LITHOLO( INTER- PRETIVE [~] ppm LOG-HYDROCARBONS IN MUD (M=IO00) [-']GAS LOG-°/o GAS IN MUD AIR/GAS ANALYSIS [~] GAS LOG-UNITS OF GAS IN AIR Cm OM 5M IOM 5M UNITS ,50 I00 GRAVEL Ib'..o',"~'o:l CHERT LIG-COAL CUTTINGS ANALYSIS TOTAL GAS~ METHANE___ N_ Boroid' Logging Systems LOG ' REMARKS CL¥- gy, gmmy ,sft SLTST-Itgy, mic,sdy ~p, si colc, frm-vfrm SS/SD-clr,gy, f-mgr, rnd- sbong, msrt, uncons + cmtd w/sltst, si calc, nsofc tr FOSS shell frag gy~gmmy, vsft COAL-blk, vit, brit, vfrm SLTST- o/o clr, gy, fgr ,rnd- sbrnd uncons~ nsofc S LTST- itgy, mic, clyy ,tr sdy, si colc,frm CLY-gy, gmmy, v sft CLY-gy,gmmy~ sdy ip,vsft ul,,,,~ Baroid Logging Systems Division WELL .... NSB-6 COMPANY, NORTH SLOPE BOROUGH LOCATION BARROW, ALASKA Lb~3LI~u TCL TRIP CHLORIDES NR NO RETURNS NB NEW BIT EL ELECTRIC LOG NCB NEW CORE BIT CO CIRCULATE OUT DST DRILL STEM TEST CKF CHECK FOR FLOW TG TRIP GAS SAND SHALE LIMESTONE DOLOMITE SILfSI'ONE ! I ,! DRILLING RATE [~] FT. PER HR. o~_~ ..< ILITHOLOGY [-'] MIN. PER FT. G S TI PERCENT I 3O0 200 I00 INTER- PRETIVE [~] p ~m LOG-HYDROCARBONS IN MUD (M:IO00) BI GAS LOG-% GAS IN MUD AIR/GAS ANALYSIS [~ GAS LOG-UNITS OF GAS IN AIR C~ OM 5 M IOM 5 M , V V V V UNITS 50 IO O GRAVEL {~ ,o.'.o :1 CHERT LIG-COAL CUTTINGS ANALYSIS TOTAL GAS~ METHANE N- Baroid Logging Systems LOG REMARKS SD-c Ir, fgr, $ brnd, u ncon~ nsofc COA L- bi k,vit, bri!, vfrm , grainy, vsft CLY-o/o CLY-gy, grrrny, vsft 't blk, '/it, conc ~'r(:]c, mhd tr SS-gy-clr, f-mgr, m~'t, unoons ,ptstc,sl talc, vsft :CLY- o/o ~il ,,,, Baroid Logging Systems Division YELL,, NSB-6 ;OMPANY, NORTH SLOPE BOROUGH .OCATION BARROW, ALASKA DRILLING RATE ~ o [~J FT. PER HR. a I -< LITHOLOGY J-"J MIN. PER FT. G S T PERCENT 3OO 2O0 IOO LITHOLO~ INTER- PRETIVE TCL TRIP CHLORIDES NB NEW BIT NCB NEW CORE BIT DST DRILL STEM TEST TG TRIP GAS SAND SHALE NR NO RETURNS~ EL ELECTRIC LOG CO CIRCULATE OUT CKF CHECK FOR FLOW LIMESTONE [~LOMITE 51Li 51L)f~E ! i I I GRAVEL CHERT LIG-COAL J~] ppm LOG-HYDROCARBONS IN MUD (M=IOOO) . J~ GAS 1_06-% GAS IN MUD AIR/GAS ANALYSIS J~] GAS LOG-UNITS OF GAS IN AIR C~ OM 5M IOM .5 M CUTTINGS ANALYSIS TOTAL GAS~ METHANE_ UNITS N_ Baroid Logging Systems LO(; REMARKS CLY-Itgy, plstc, slty, tr st,, vsft CLY- a/a SH- blk, carb~ s ity, frm CLY-Itgy, plstc, slty,sl calc, vsft SLTST- Itcjy, clyy, si calc, sft CLY- Itgy ,gmmy, slty~vsft ~Ill,~,, Baroid Logging Systems Division ELI ;'~ ;~- ~'. )MPANY. ?~o~fH SLOPE BOROUGH )CATION BARROW, ALASKA ............................ LEGE-ND ......... TCL TRIP CHLORIDES NR NO RETURNS NB NEW BIT EL ELECTRIC LOG NCB NEW CORE BIT CO CIRCULATE OUT DST DRILL STEM TEST CKF CHECK FOR FLOW TG TRIP GAS SAND SHALE LIMESTONE DOLOMITE F---4 !/ //I DRILLING RATE ~ O J~] FT. PER HR. -~ GS E] MIN. PER FT. 200 I00 LITHOLOGY PERCENT INTER- PRETIVE J~] p :)m LOG-HYDROCARBONS IN MUD (M=IOOO) J~J GAS LOG-% GAS IN MUD AIR/GAS ANALYSIS J~] GAS LOG-UNITS OF GAS IN AIR C~ OM 5M IOM 5M , V V V V UNITS 50 100 SII'TSTONE GRAVEL CHERT LIG-COAL CUTTINGS ANALYSIS TOTAL METHANE. N_ Beroid Logging Systsms LOG REMARKS CLY-Itgy,gmmy, slty,vsf t SLTST-Itgy, mic, clyy, si colc, frm tr PYR CLY-incr slty CLY-gy,gmmy ,slty, vsfl SLTST- mgy,clyy, mic ip, sft-frm SS- Itgy, fg r, sbrnd, msrt, calc cmt ip,uncons,nsofc CLY-Itgy-g y, plstc-gmmy, vsft SS-gy,vfgr,rnd, msrt, prl~ cons ,sme gr fstd,nsofc i,J~,~,, Boroid Logging Systems Division ~/ELL N S B- 6 ;OMPANY. .OCATION NORTH SLOPE BOROUGH BARROW, ALASKA DRILLING RATE r~ FT. PER HR. E] MIN. PER FT. 3O0 2O0 I00 GST L ITHOLOGY PERCENT LITHOLO~ INTER- PRETIVE L b-. Gb I~ L) TCL TRIP'CHLORIDES NR NO RETURNS NB NEW BIT EL ELECTRIC LOG NCB NEW CORE BIT CO CIRCULATE OUT DST DRILL STEM TEST CKF CHECK FOR FLOW TG TRIP GAS SAND SHALE LIMESTONE DOLOMITE ppm LOG-HYDROCARBONS IN MUD (M=IO00) GAS LOG-% GAS IN MUD AIR/GAS ANALYSIS ............ GAS LOG-UNITS OF GAS IN AIR_ Ci OM 5 IO 5 0 ~00 SIU'STONE GRAVEL io,0..o:! 1~3:~5'o:1 CHERT LIG-COAL CUTTINGS ANALYSIS TOTAL GAS, METHANE N_ Baroid Logging Systems LOG REMARKS SI_TS T- Itgy-g y, shly, cl I Y, rrm CLY-ltgy-cjy, gmmy, vsft gt,vtgr, sbrnd,pcons, slty, nsofc SH-dkgy, blK, btky-plty, carb, frm-vfrm tr PYR SH-blk,blky,carb,mhd, w xy ADnt PYR SS- Ilgy-gy, clr, vf- mgr, sbrnd, psrt, uncons, nsofc TU FF-wh, micx In ,vfrm SH- blk ,dkgy, miclom, fiss ip, slty,corb,pyr, si colc rrm SS- clr,gy, m-fgr, sbong- rnd, uncons ~ ns0fc Abnt PYR SH- a/a LS -mbr ngy, crpx In, shly, vfrm-mhd STATE OF ALASKA OIL AND GAS CONSERVATION APPL,GATION FOR SUNBRY 1. Type of Request: Abandon CI Suspend I~ Operatlott Shutdown ID Re-enter suspended well 1"1 Alter casing ID Time extension I'"J Change approved program ID Plugging I'1 Stimulate ID Pull tubing E] Amend order E] Perforate O[ Other I"1 2. Name of Operator North Slope Borough - B~rrow Gas Fields 3. Address P.O. Box 1120, Barrow, Alaska 99723 4. Location of well at surface 1850'FEL 2000' FSL Sec. 6, T21N, R17W, 5. Datum elevation (DF or KB) 45.47 KB feet 6 UniLor Pr. ooerty, name . 7. Well number NSB ~6 ' At top of productive interval same At effective depth sc~Tle At total depth 11. Present well condition summary Total depth: measured 2564 true vertical same Effective depth: measured 2512 true vertical same Casing Length Structural n/a Conductor 58 ' Surface 168 ' Intermediate 1574 ' Production 2564 ' Liner n/a Perforation depth: measured U.M., Alaska feet Plugs (measured) feet 8. Permitnumber RR-]R 9. APInumber 50-- 023-20026 10. Pool Sikulik feet Junk (measured) none feet ~ :::~,":~ i.~if ~. ('i{~S [;0ns,, [.k~iT~[i;i~ Size Cemented Measured depth Tr~}~r~l depth n/a n/a n/a n/a 20" 75 sx Perm 58' 58' 13-3/8" 236 sx Perm 168' 168' 9-5/8" 850 sx Perm 1574' 1574' 7" 85 sx Perm 2564' 2564' n/a n/a n/a n/a 2178-2196, 2202-2212, 2218-2228, 2236-2252, true vertical same Tubing (size, grade and measured depth) 4½" 12.6" N-80 at 2132' w/ Packer at 2115' 2-3/8" 4.7" N-80 stung into PBR at 2122' Packers and SSSV (type and measured depth) AVA 7" Permanent Hydra~]]ic Packer ~t 2115' 12.Attachments Description summary of proposal ~ Detailed operations program [3 BOP sketch 13. Estimated date for commencing operation As soon _~ approval is qranted 14. If proposal was verbally approved Name of approver Date approved 15. I hereby certJify that th~ foregoing is true and correct to the best of my knowledge Signed ~f~/._2._~ ~/~//~ Title Petroleum Engineer William W. Allen Commission Use Only Conditions of approval Notify commission so representative may witness I Approval NO. ID Plug integrity [3 BOP Test ID Location clearanceI ORIGINAL SIGNED BY Date '9/10/89 ,:~p~?oved Copy R~tu rned by order ot ~ c~'/~.U~/7-~---~ the commission Date Submit in triplic'at~ Approved by Form 10-403 Rev 12-1-85 LONNIE C. SMITH -43 - NORTH SLOPE BOROUGH NSB#6 SUNDRY APPLICATION TO PERFORATE TUBING 9/10/89 Anchoraga - NORTH SLOPE BOROUGH BARROW GAS FIELD DEVELOPMENT PROJECT P.O. Box 1120 Barrow, Alaska 99723 Fax 907-852-8971 September 11, 1989 Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-3192 Re: Application for Sundry Approval NSB # 6 Perforate Tubing Gentlemen: The NSB#6 well was completed with a permanent packer to isolate the tubing-casing annulus as required by 20 AAC 25.200 of the Alaska Oil and Gas Regulations. In complying with this requirement, it was determined that the completion configuration would enable heated glycol to be circulated through the 2-3/8" x 4-1/2" and 4-1/2" x 7" annuli to prevent freezing problems in the tubing. However, the historical performance of other Barrow Gas Field wells is sound evidence that the heat string configuration is not necessary. In fact, most of the other Barrow wells have produced trouble-free for years with no packers on heat strings. The only wells that have packers and heat strings are NSB#4, NSB#5, and EB#19. Of these three, only EB#19 has produced for an extended period of time. Its performance since installation of the heat string in 1986 is no better than it was before. The well still experiences periodic freeze-ups, which confirms that the problem is at the perforations, not up in the tubing. As such, the problem could be more effectively and economically controlled with methanol injection than with a heat string. Based on the following reasons, there is sufficient evidence to state that packer completions seriously impair the operation and performance of Barrow Gas Field wells. a) Ail freezing problems experienced by the Barrow gas wells occur at the perforations, not in the tubing. For this reason, the heat strings serve no useful purpose. Additionally, a packer requires that the well be shut-in to lube methanol down the tubing to correct or prevent freezing at the perforations, while a well without a packer can have the methanol lubed down the tubing without having to shut the annulus in. Letter to Alaska Oil & Gas Conservation Commission Page -2- September 11, 1989 b) Gas velocity up the tubing is significantly greater than up the annulus due to the lower cross-sectional area. As such, any produced water is carried to the surface with the gas where it can cause freezing problems in equipment and flowlines. By producing up the annulus, the gas velocity is kept low enough to prevent water from being carried to the surface. Instead, the water can be allowed to accumulate downhole and be blown out periodically through the tubing. c) A packer prevents comparing tubing and casing pressures which provide an excellent advanced indication of freezing or water loading. With a packer, a freezing problem can go undetected until it's too late. d) A cutout master valve, in conjunction with an uncontrolled leak or blowout, would be extremely difficult if not impossible t.o control without the capability of pumping kill fluid down the annulus. To alleviate the above problems, the North Slope Borough requests the approval of the commission to perforate the tubing in NSB#6 from ±2070' to 2060' KB using a Kinley perforating gun. This would allow the well to be produced up to the 2-3/8" x 4- 1/2" annulus and/or the 4-1/2" x 7" annulus, with the capability of monitoring pressures in the tubing, lubing methanol down the tubing and blowing the well down through the tubing. The work would be performed using a Mathey slickline unit, lubricator with stuffing box, slickline BOP's and a Kinley gun. The work would be scheduled as soon as permission was received from the commission. If you have any questions or require additional information, please don't hesitate to call. Very truly yours, William W. Allen, Petroleum Engineer Barrow Gas Fields WWA/dav NORTH SLOPE BOROUGH DEPARTMENT OF INDUSTRIAL DEVELOPMENT BARROW GAS FIELD DEVELOPMENT 3201 C Street, Suite 602 Anchorage, Alaska 99503 Mr. Lonnie C. Smith Commissioner Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 Phone: 907-561-8820 June 22, 1989 REFERENCE: NSB 96 Barrow Sandstone Mineralogy & Drilling Fluid Sensitivity Analysis Dear Lonnie: Enclosed is a copy of Opstad & Associates Report #0AA-890503 entitled "Barrow Sandstone Mineralogy and Drilling Fluid Sensitivity Analysis" which is being submitted to AOGCC Barrow Gas Field files. Please hold this document in confidential status for the period required by State of Alaska statute. Should you have any questions concerning this document, please call me at 276-0203. Thank you. Best regards, Erik A. Opstad Geoscience Consultant Barrow Gas Fields STATE OF ALASKA ALASKA OIL ~N'D GAS CONSERVATION C~ISSION 3001 Porcupine Drive Anchorage, Alaska 99501 (907) 279-1433 TO: P,E: Receipt of the following material which was transmitted via is hereby acknowledged: QUANTITY DESCRIPTION Copy sent to sender !%S,. ,, ~ NORTil SIA~I'E BOROUGii DEPARTMENT OF INDUSTRIAL DEVELOPMENT BARROW GAS FIELD DEVELOPMENT 3201 C Street, Suite 602 Anchorage, Alaska 99503 Phone: 907-561-8820 TO: Mr. C. V. Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 DATE: October 17, 1988 TRANS.~: 8810170-NSB REFERENCE: Well Test Reports NSB ~4, #5 & ~6 The following technical data is being submitted herewith. Please acknowledge receipt, by signing and returning a copy of this transmittal to the North Slope Borough, attention Mr. Erik A. Opstad.~ ENCLOSED INFORMATION SUMMARY' Submittal NSB {4 NSB #5 NSB ~6 Well Test Reports X X X RECEIVED · OCT 2 .J 1988 A. O. G. C.C. / Date /~,chorage DEPARTMENT OF INDUSTRIAL DEVELOPMENT , BARROW GAS FIELD DEVELOPMENT ~i:', .... '~- ..... _ 3201 C Street, Suite 602 Anchorage, Alaska 99503 Phone: 907-561-8820 ~ ~[~',1~ Mr. C. V. Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 DATE: June 30, 1988 TRANS.#: 8806300-NSB REFERENCE: NSB 96 Wellsite Core Report The following technical data is being submitted herewith. Please acknowledge receipt by signing and returning a copy of this transmittal to the North Slope Borough, attention Mr. Erik A. Opstad. ~ Submittal ENCLOSED INFORMATION SUMMARY NSB 96 1) Wellsite Core Report 2) ROutine Core Analysis X "X Received A.O.G.C.C. / Date RECEIVED J Li L - t Alaska 0il & I~as Cor]s. Cornrnissio~ Anchorage NORTll SLOPE BO ¢OUGI! DEPARTMENT OF INDUSTRIAL DEVELOPMENT BARROW GAS FIELD DEVELOPMENT 3201 C Street, Suite 602 Anchorage, Alaska 99503 Phone: 907-561-8820 TO: Mr. C. V. Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 DATE: May 27, 1988 TRANS.#: 8805270-NSB REFERENCE: NSB #5 & NSB ~6 COMPUTED DIPIX)GS The following technical data is being submitted herewith. Please acknowledge receipt by signing and returning a copy of this transmittal to the North Slope Borough, attention Mr. Erik A. Opstad.~ ENCLOSED INFORMATION SUMMARY Submittal NSB #5 NSB #6 Bluelines: 1) 1 DIPLOG X X Sepia: 1) 1 DIPLOG X X -'Received By: A.O.G.C.C. / Date NORTH SLOPE BOROUGH DEPARTMENT OF INDUSTRIAL DEVELOPMENT BARROW GAS FIELD DEVELOPMENT 3201 C Street, Suite 602 Anchorage, Alaska 99503 Phone: 907-561-8820 TO: Mr. C. V. Chatterton Alaska Oil & Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 DATE: April 14, 1988 TRANS.#: 88041420-NSB REFERENCE: NSB #6 Open Hole MWD & Wireline Well Logs The folloWing technical data is being submitted herewith. Please acknowledge receipt by signing and returning a copy of this transmittal to the North Slope Borough, attention Mr. Erik A. Opstad.~~ ENCLOSED INFORMATION SUMMARY Submittal Bluelines: ~1) 1 PROLOG X ~ 2) 1 DUAL &MICRO. LATEROLOG/GAMMA RAY X ~3) 1 DIPLOG X ~4) 1 BHC ACOUSTILOG/GAMMA RAY X ~ 5) 1 SPECTRALOG X ~ 6) 1 DENSILOG/GAMMA RAY X 7) 1 DENSILOG/NEUTRON/GAMMA RAY X Sepia: One sepia for each blueline print listed above. Received By: A.O.G.C.C. / Date ~daska Oil & Gas Cons. CommissioE Anchcrage ALASKA OIL AND GAS CONSERVATION COMMISSION ? STEVE COWPER, GOVERNOR 3001 PORCUPINE DRIVE ANCHORAGE, ALASKA 99501-3192 PHONE: (907) 279-1433 ~E~'~ TELECoPIER 29`5 ': 3-2@-8@; 8:26 BARROW GAS FIELD D~VELOPMfiNT PROJECT P~O, g~x 1120 ' a,rrow, Alaska 99723 TELECOPTER COVER LETTE~ 90,72767642 TOTAL N%TMBER OF PAGES, INCLUDING COVER LETTER: SPECIAL INSTRUCTIONS: _2 __ ... ~,4.,.r,,.,,~...~ ... PLEASE CALL W~EN RECEIVED, AS SO0~ AS POSSZBLE. SENT BY: ... *NOTES* STATE OF ALASKA ALASKA OIL & GAS COMSEKVATION COMMISSION Loca:~on: Sec T R M Audio Mud Systems Visual Trip Tank ~ ......... Pi: ~auge ~. .... ~low Monitor ~ BOPE Stac~k Annular Prevence~. Pipe Rams Blind Rams.,. Choke Line Valves H.C,E. Valve KZll LlneValves Check Valve Test Results: Failures ,, ~$ ~epal~ o: Raplace~en~ of :ailed equipmen~ ~o be ma~e within: Commission office no=i~ie~. Remarks: ACCUMULATOR SY.~T EM r,ull Charim PreSsure Pump incr. clos. pre~. 200 p~ig, Full Charge Pressure Attained: R~moue..oE ~lind~ switch cover _.K_~y...and Floor Safety V~Ivee Lower Kall~ ~, Tea: Pressure ~ali Typ~ ~ Teac Pre~uze Choke Manifol~ or Teat Pressure ~ _._ ~o. Valves /A No. flange~ Adjustable Chokes / .- - Tes~ T~e day~ and 2u~pecto~/ .. o~i$, · cc - uperv ao FI/kD DI~VELO~M~NT PROJiCT 9072767542 P.O1 TQTAL NUMBER OF PAGES, INCLUDING CO",/:~R LETTER: SPECIALINSTRUCTIONS ~,,',,' *'-'~,~'~.._./L~_..~~ *NOT_E_S * ~18~ Loca=fon, General / Mu~ Sv ~s' ual Audio Tr~ Tank - ~' . ST'A:E' , Re~re~en:a:iw Gas De:ac:ors Well Annular Prevauter Choke Line Valves H.¢.R. Valve Kill~>~ne.~. Valves Check Valve Set .? · ~ACCU~ULATOR,.$YiT~M Full Charie Pressu~e_~ Pressure After C16~,ure. Pump incr. =los. pres, 200 psiS . min.____se¢'~.,. Full Charge Pressure Attaine~:.__j._.,min. jL~_sec m2 ,, , Controls: Master E~mo:e ~I sw~tch cover _ Kelly and F!oo~ Safa:v Valves ' .~T '~ _ ~ _ Uppe~.Kelly /_/ Lower K~ilx ~' Test Pteisur~ Bali Ty~e ~" Te~ Pressure Choke Manifold ~' Test Pressure £~o No. fl'anges ~, ~/ - Adjustable Chokes ,/ ~' ~ ~.- . ~,~ , ., Test Easulcs: Failures .,. Repair or Eeplacemen: of failed equipment to be made wi:bin Commission office no:iliad. cc - Supervisor days and !nspec:or/ March 2, 1988 Telecopy: (907) 276-7542 ~. Erik Opstad Petroleum Geologist North Slope Borough 3201 C Street, Suite 602 Anchorage, Alaska 99503 Re: SOuth Barrow NSB #6 North Slope BorOugh Permit No. 88-18 Sur. Loc. 1850'FEL, 2000'FSL, Sec. 6, T21N, R17W, UM. Btmhole LOc. 1850'FEL, 2000'FSL, Sec. 6, T21N, R17W, UM. Dear Mr. Opstad: Enclosed is the approved application for permit to drill the above referenced well. The permit to drill does not indemnify you from the probable need to obtain additional permits required by law from other governmental agencies prior to commencing operations at the well site. To aid us in scheduling field work, please notify this office 24 hours prior to commencing installation of the blowout prevention equipment so that a representative of the Commission may be present to witness testing of the equipment before the surface casing shoe is drilled. Where a diverter systeTM is required, please also notify this office 24 hours prior to commencing equipment.installation so that the Commission may witness testing before drzlling below the shoe of the conductor pipe. C. ~V. Chatter~ton~i Chairman of Alaska Oil and Gas Conservation Commission BY ORDER OF THE COMMISSION dlf Enclosure Department of Fish & Game, Habitat Section w/o encl. Department of Environmental Conservation w/o encl. Mr. Doug L. Lowery STATE OF ALASKA ~; ALASKA L AND GAS-CONSERVATION C 4MISSION PERMIT TO DRILL 20 AAC 25.005 i la. Type of work Drill [] Redrill I-qI lb. Type of well. Exploratory ~ Stratigraphic Test [] Development Oil [] Re-Entry [] DeepenF1I, Service [] Developement Gas [] Single Zone [] Multiple Zone [] 2. Name .of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool North Slope Borough KB = 46 feet 3. Address 6. Property Designation Wildcat 3201 C Street, Suite 602, Anchorage, Ak NSB Fee 4. Location of well at surface Umiate Meridian, Ak 7. Unit or property Name 11. Type Bond (see 20 AAC 25.025) 1850' FEL, 2000' FSL, Sec 6, T2~N, R17W South Barrow At top of productive interval 8. Well nurpber Number CD #17430 As Above NSB #6 At total depth 9. Approximate spud date Amount $ 200,000 As Above March I 1, 1988 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) property line 3,766 feet 4,991 feet 21,120 2,600 feet 16. To be completed for deviated wells N/A 17. Anticipated pressure (see 20 AAC 25.035 (e)(2)) Kickoff depth feet Maximum hole angle 0 Maximum surface 1000 psig At total depth (TVD) i t 050 psig 18. Casing program~ Setting Depth size Specifications Top Bottom Quantity of cement Hole Casing Weight Grade Coupling Length MD TVD MD TVD (include stage data) 24" 20" 94 H-40 .- 40 0 59' 75 sxs. Perm. 17½" 13-3/8" 72 S-95 8rd 120 0 135 275 sxs. Perm. 12¼" 9-5/8" 53~5 S-95 8rd 1381 0 1400 '~* 1295 sxs. Perm. 8½" 7" 32 N-80 8rd 2585 0 2600 !" 175 sxs. "G" 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary Total depth: measured feet Plugs (measured) true vertical feet Effective depth: measured feet Junk (measured) true vertical feet Casing Length Size Cemented Measured depth True Vertical depth Structural Conductor SurfaceREI::EiYEI) Intermediate Liner Perforation depth: measured t:~Sk~ 0il & Gas Cons. C0mmissio,'.~ true vertical Anct~ora§e 20. Attachments Filing,,,f. ee l~"~roperty plat I~'/~OP Sketch []~'~-E)iverter Sketch [~'~-D~rilling program ~ Drilling fluid program I~Time vs depth plot [] Refraction analysis [] Seabed report [] 20 AAC 25.050 requirements [] 21. I hereby certify thaj.t the foregoigg is true and correct to the best of my knowledge Signed ~_~,/~~_~~~~~7~ Title~/~~ Date o~/~.,~.~ ~ '~,-/'- ' Commissiofi Use 6.ly ' "'-' / / ~' -' Permit Number I A,I number I Appr~v~/~a~ 88 See cover letter ___________________~c~¢-[ ¢, 50--O22 '- 2¢2-6, for other requirements Conditions of approval Samples required [] Yes ~ No Mud Icg required 1~~Yes [] No Hydrogen sulfide measures [] Yes .1~ No Directional survey required [] Yes ~'~ No Required workingj;~r.e~ssure for BO~-~ j~2M;. [].3M; [] 5M; [] 10M; [] 15M Other: //.~/ /~/,/////// ~/~ _ by order of Approvedbyk ' ,,//.,. ('~--~..~/~'~ Commissioner the commission Date Fnrm ld-ztnl R,~u :I?.I-RR ?,.bmit ' n triplicate 0 112 1 1';= 1 MILE SCALE SURVEYOR'S CERTIFICATE I hereby certify that I am properly registered and licensed.to practice Land Surveying in the State df Alaska, that this map represents the location of this'Well as staked by me or under my direct supervision and that all dimensions and other details are correct. ' Surveyor ~'~'~~. :;?~Date ./-z'7-8'8 NSB WELL NO. 6. LAT.. = 71° 12' 00.389" N. LONG. = 156°'31' 01.447" W. . ALASKA STATE'PLANE ZONE 6 Y = 6,290,893 X = 675,038 (NAD 192,.7)_ F .F.__ ~::~,._, 1 f' !'":i !"i ~':, · ' STAKING SHEET ..' NORTH SLOPE BOROUGH' WELL NO. 6 LOCA~D IN SE 1/4 PROTRACTED SEC. 6, T.21 N., R.17 W., U.M. NORTH SLOPE BOROUGH BARROW GAS FIELD OPERATIONS BTS / LCMF LIMITED, J.V. P.O. BOX 427 / 723 W. 6th AVENUE BARROW, AK. 99723 ANCHORAGE, AK. 99501 NORTH SLOPE BOROUGH - B.O.P. STACK CONFIGURATION Fill-up Line x 5000~' ~ IHydril Pitcher Nipple lf' x sooo! Hydril Double Gate Choke Line 'lf xS0001 Hud 'Cross Kill Line 11" x 5000# · Cameron Single Gate NORTH SLOPE BOROUGH - DIVERTER SYSTEM SKETCH Fill-up Line 13-3/8" 5 HYDRI Pitcher Nipple (to Mud Pi ts) 10-3/4" Csg, 150' From Well ~Hydraulic Actuated Diverter Valve I' ~ 20" Conductor- I ' I ,,13-3/8' Csg NORTH SLOPE BOROUGH DEPARTMENT OF INDUSTRIAL DEVELOPMENT BARROW GAS FIELD DEVELOPMENT 3201 C Street, Suite 602 Anchorage, Alaska 99503 Phone: 907-561-8820 NORTH SLOPE BOROUGH WELL NSB #6 PROPOSED OPERATIONS SUMMARY February 16, 1988 During April of 1987, the North Slope Borough drilled exploratory well NSB #4 on a linear structure roughly 5 miles south of existing production in an effort to expand gas supplies for the village of Barrow, Alaska. NSB #4 was successful encountering minor gas in several Lower Cretaceous sands, and a significant accumulation in the Barrow Sandstone. Analysis of open hole DST and wireline data suggested an OGIP of approximately 22 Bcf, however the extent of the accumulation has not been confirmed by an offset well. During the 1988 season, the North Slope Borough intends to confirm the extent of this discovery by drilling two exploratory conformation wells in the NSB #4 discovery structure. The first well, NSB #6 is to be located 4,991 feet west-southwest of NSB #4 (Figure 1). The well will be extensively cored and tested to provide base-line data on the reservoir. An additional goal of the NSB #6 well is to evaluate the down-dip extent of the reservoir (Figure 2). The completion design planned for NSB #6 (See Attachments) was successfully implemented in East Barrow #19 during 1987, raising average daily production to 1175 Mcf from approximately 600 Mcf. Additional information will be available from similar completions of NSB #4 which is scheduled to be completed in a similar fashion prior to NSB #6 drilling. This additional data will allow the proposed completion design and procedures to optimize the NSB #6 work. We expect the Drilling and Operations Program as cited in our Permit To Drill application to be completed approximately two weeks from the anticipated start-up date of March 1, 1988. FIGURE 1 NSB #6 SURFACE LOCATION oo ° ° c..o ~ "' - "- .. "~c~. -, . 9 - o c~ .' "' ~.o',,~'.,]joo0 o ,' ° ~ .. .~.. - , ~ '. - o o. ~ - ... .'*5 ':'. 0 G',, io -' · · _..' ...,~ '-- '. ~ ~) ,, · o ~55~--/~_.~ .o o~ o o , o-'" ~ .. '~ . _oo /e 350' FEL, 2000'FSL '"..'~ ' ,3'$ o,O*/ l~ec 6, T22N, R17W '~' ~ * ~ ~~ ~ ' '~o~°/, ~ '25 , ~ ~ I ) ~o~ ~ '. · 12 · .~ 7 o¢°'~'" 8is ~_ . ~ . ~:~ -- · ' ~' p _.,~.?~.~ , . ' ~' ~ o ~ ~ ~ ' / ~ . ' = o o '. ~ ~ R ~ W R ~7 W · ~' FIGURE' 2 Line 654 SEISMIC CROSS SECTION- NSB #6 PROPOSED DRILLSITE 33 NSB'6 31 I 29 ' 27 ~asement NSB #6 DETAILED OPERATION PROGRAM The following details the operation program for NSB #6 as anticipated beginning March 1, 1988: · General Guidelines A general safety meeting covering Barrow Gas Field operations will be held among all NSB and Contractor personnel prior to start-up. Ail personnel will make their best effort to minimize any operational impact on the environment. Ail solids control equipment, charge pumps and agitators will be functional prior to rig acceptance. Mud reports to be issued at least every 6 hours or as requested by the Drilling Supervisor or Project Geologist. Mudloggers are to collect two sets of ditch cuttings every 10' below 13-3/8" Csg point; samples to be thoroughly washed and labeled as to depth and source. o Cementing procedures to follow Halliburton design. Intermediate casing point and TD will be called on the rig by the Project Geologist; MWD ROP log to be plotted at each connection on 5" scale in the 8-1/2" hole. Core will be cut in the Lower Cretaceous Sand interval anticipated from +1600 - 1720 MD, and through the Barrow Sandstone interval expected between +2140 - 2262 MD. Eastman-Christensen will utilize 30' fiberglass core barrels for the job. Upon surfacing, each 30' core and core barrel will be cut into 4' lengths and capped. Core depths are to be permanently and clearly labelled on the top and bottom of each 4' section. Core to be sent to Core Lab @ 8005 Schoon Street, Anchorage 99518 for analysis. A Drill Stem Test (DST) will be conducted on the Lower Cretaceous Sands following coring with the DST packer to be set in the 9-5/8" casing. O Sidewall Cores will be taken in the Sag River between +2457 - 2525 at the Geologist's discretion based on wireline log analysis. NSB #6 Operations Barrow Gas Development Page 2 of 3 02/16/88 Gas flares during DST or production testing will be held below 2,400 Mcf/day in accordance with Department of Environmental Conservation (ADEC) permit exemption guidelines. Cutting deposal as per ADEC Deposal Permit. Arctic Pack to approximately 1200' MD following procedures used previously on NSB #4. Ail changes to planned procedures must be approved by the Drilling Supervisor or Project Manager. Abbreviated Operational Sequence ® · · · · · · General rig-up of Grace Rig 211, Accept rig on or about March 1, 1988. Drill 17-1/2" surface hole to ~150'; survey and condition hole; run 13-3/8" Csg, Cmt to surface with Perm.; cut 13-3/8" & weld on casinghead flange, test to 1000 psi. N.U.B.O.P.E. and Diverter system, function & pressure test (1,000 psi); P.U. BHA & MWD tools, drill 12-1/4" hole to +1450' MD BKB. Short trip, circ. and cond. hole, drop survey, P.O.H.; R.U. and run 9-5/8" Csg; circ & cond. for Cmt, Cmt to surface with Perm.; P.U. Hydril, set 9-5/8" slips, cut Csg, weld on Bradenhead flange & test to 1500 psi. N.U. B.O.P.E., function & pressure test (3000 psi), clean pits & mix "New-Drill" mud system per Milpark specifications; P.U. BHA & MWD Tools, T.I.H.. Drill Cmt. & test Csg to 1500 psi, drill shoe & 10' of new 8-1/2" hole; perform L.O.T.; drill 8-1/2" hole to top of Lower Cretaceous Sands, survey; P.O.H. & L.D. MWD; P.U. core barrel T.I.H. & core LC sands. P.O.H., L.D. core barrel & R.U. DST equipment; T.I.H. & test Lower Cretaceous sands. NSB #6 Operations Barrow Gas Development Page 3 of 3 02/16/88 · P.O.H. & P.U. BHA & MWD tools, ream cored interval, drill to top of Barrow Sandstone, survey, P.O.H., L.D. MWD & P.U. core barrel; T.I.H. & core Barrow Sandstone. · P.O.H. & P.U. MWD tools, ream cored section & drill to TD below Sag River Sandstone, survey at TD and as required. 10. R.U. Atlas Wireline to log; log 8-1/2" hole with MML- DLL-SPECTRALOG, CDL-CN-GR-CAL, BHC-GR, & DIPLOG; SWC Gun to be available for Sag River at Geologist's discretion. 11. P.U. BHA make clean-out and conditioning run; P.O.H., install & test 7" rams; R.U. & run 7" Csg to TD; R.U. Howco Circ. Head, Circ.; clean pits & mix Cmt; Cmt 7" with volume as per wireline caliper; R.D. Howco. 12. R.U. & T.I.H. with bit & scraper to plug back TD; P.O.H.; R.U. & R.I.H. to perforate Barrow Sandstone as indicated from wireline logs. 13. P.O.H.; install and test 4-1/2" pipe rams in B.O.P. to 3000 psi; R.I.H. with 4-1/2" Tbg & Baker packer w/tail pipe assembly to 2140' land & lock in screws 14. P.U. - B.O.P., install 2-3/8" rams and test to 3000 psi; R.I.H. with 2-3/8" Tbg to _+2140', space out & land; Test to 2500 psi. 15. N.U. FMC Tree & Test to 3000 psi.; R.D. & release rig. Planned as straight hole; maintain L.T. 5°, Totcos each bit trip <--- Use MILPARK "New-Drill" System----><-- 8.5 - 9.0 PPG ---><-- 8.5 - 9.0 PPG ....... 5~ - 7% KCL 7% KCL w/Gel <--- Cmt 7" with class "G" ',i Volume to be determined from open hole wireline logs ><--Cmt 9-5/8" to --><--Cmt 20" & 13-3/8"-- ~ surface w/Perm, to surface w/Perm. <-- MWD GR/EWR ><--MWD GR/EWR MML-DLL-GR, CDL-CN-GR-CAL, BHC-GR, SPEC, TEMP, DIPLOG, SWC (as required) TRIASSIC-><--- JURASSIC <--- Kingak Shale m ~ 0 o ~ ~ ~ 0 0 ~ ~ C~ ~ 0 I I O- ..... ><, None >< CRETACEOUS ><-~e Sh-><-- Torok Fm. -.t-~ 0 >< .... QUAT.- .... ><' '=' ' 'Qal ~'~ I ' 0 ~ m A ~ H~ J~H-25 ~'88 I'ION 9: 2:-3 o. n c. h or ,~-~ ,=, ..TIqN-2.5-' 88 10: ~1,]1 T-iqNCHORPlGE Milpark Technical Information ~636-03 F'. 0 Z LTr!/lin~l Flu i#,~ }Te comm en da rion$ NORTH SLOPE BOROUGH WELLS #5 and #6 CONCENTRATION OF NEW-DRILL SYSTEM PER FINISHED BARREL PRODUCT CONCENTRATION ,. Barite 42.0 PPB KC1 19.0 PPB Gel 10.0 PPB New-Drill 1.5 PPB New-~hin .5 PPB Drispac 2.0 PPB Starch 2.0 PPB Water 33.8 Gallons JRN-2~- _ · _ JAN-25-' 88 11: ~5 T-ANCHORAGE ~638-02 F'.O1 Milpark Technical Information NORTH SLOPE BOROUGH MILPARK PRODUCT / GENERIC NAMES .... ' :.. '- ..'.--'~ '.,. ':: .... .-' '."".! :, -,". '; '2'-' " · '... ~:' - : ' ....:'"":): ' ~ .~:'-:':'F~.' '":.':.' . .. ' i' . ' .'.., ".; .;' . ,'~ ':,"' . . ', -':...,~ ...... .... ....:-.......:..:~':..-"'i.:~:-..~.. :..~.. ...... . · - ,% .,r ; ~ . ~'.'.', .; , . . .. ~...-,' . . . . '.~ ,~ .,'?2? . ..- -,- . ~ . .... .; ' -...,. . . ,..!' :. ,.. ., , . . PRODUCT .... ?"... '::.GENERIC NAME .., ..... -'.i:- -. '""~"Y~." ' " ....... .- -:.-i'-:,.: .-.~.~:;!i~'_:~?:-..i' .:.- . ... .:'..:.,:-?-.. "'-' .:..'.L', ....' i.._,- .....-'"',:'.;::-~.::':':~'::. · ':.', · '.; :." :' · ' ~ ..... ' .... ? ";~T' ~t".-~?-- ?'.:..: .: ,'..;:., ~'- '. .... :;--.~ .:~ · "'-'."-'..': '" -'- · ' ' .. :'-- '~ ':, ' :' '-' .. - ':'~;'~: '".:~' 2' .'.-: · · "', · .... .... :~-, :..._./.-. . , . · . . .... ....:.~-.,.-.?:~-,,...~::.q,<; ..:.*.~:~?-:- ...... ..-', .... ...~. :........, .....~.:..,.,..;)...,.,,~ · ..... ,: .... '~..:.:...., ..... '.;~...~,.: . . · ' ", ;.. · ·· . -...',,~7..- .. z.?...~.~u~-'.-.*~. ",.-., t ' '" ?:,'- '- ' ' "' '' '-,"~'"~ ..... ' "' .'- ' " ' ' ~'...' : ' '.. ~. "; :.'.';" · .-. : .: M~lgel, .'.-'"::.':.~:A:;.:.:,?::~!:::::.;,..:,..Benton~te :i ol acryl lya ryl o y er .',... ":"~ i:',......:,:. ':'... :" ~' Drispac' I: ' ' ; :m~''~ :~'' ' '"Polyanioni, c Cellulosic Polymer ..... - .... , .. '..: ' /..::,.:. /. , · . .--.,, . ,-~. ,.,~, .. . .-....... ... '.:..:-.-.-'.',.::.::".,: ,.... ....... : .... ~ -~ ........... :;..,..,.. - .... .,~,.?v,*.~.-.,~ .... ..... KC1" ...... :':' L.:,,....; i::Pot~ssium Chloride '-' ..... -'.' ".":::': ....... ..". -'-- Bicarb of $Od~ ""-"~--Sodium Bicarbonate ":.".":'~ :-.:',: "'.','Un1 ~al ..?:.'-:?'~.':,:::'%e%.r;~:<' L~ 9nosul fona~e ',:: %'..'"":.'. ::,"~-'-.~iJ~,~, .., :.: -- :'...:.' ::-'.'?:~;.?..~'..',: ,., '-. '. --'- ... ': .... .~.:. ;.,~;.::?:..,.'F.~-,'- ' ;.- ..... · .. · ~ .~' .~ ~., ,~ "~.'.:-'.":~., ,- '":'.~'~'l"C .~ .~"" :': ' ,*,' ~' ~.~; ;~,~t:~ '-i~-' c, ,- .... -' ~.'.'...~. '.'_ ' ': ..... ~ '~- ~ ...... ..~:C-~-~.~,.-.,'.,:~,,~?~,~,,.i- "~,-:~,.,,.' '~-;' ~.-:' ~.. ' ~ · ,- ,~'~.:~,; ..... .'e'::~:,,~-.,~.~,~".... L..~.-,~].,,,.*,~:~, ..~,~.,~,','~[:. ~' %, '.:';~ :' ~ .~ :~ r': ~... '.~.'~-'.,, .. :....:r :--.' ' Carbo-Gel - -' ..-:' ....^~_ _L ,. - -..",:-l.'.::,.,--..:.::':,'.':,::uFganoplilllC u, ay '.:'..',":'::."'.:',.,.:.,:..:"... · '.:,..'-,.. ., . . . . .:..::.' ... -....,~. ,.::.:.;._----. :..~. <% .... -- ..' .:,..-' -:.~. ,- .: . ..... ... . ...,.: .... ,.. · . - '. . . f .: :-- ~ - ~.-.~ . - · .... ·". '...""'Carbo-Mul ..:.- .':·-·':-~..::i·.::;:Oil Mud Emu'isifter L D-8 -- Aluminum S~earate in a _ Propoxylated Oleylalcohol Mil -Starch Starch CHECK LIST FOR NEW WELL PERMITS ITEM APPROVE DATE (1) Fee ~ (2) Loc (2 thru 8) (8) ~ (9 thru 13) 10. z- 11. (10 and 13) 12. 13. (4) Casg ~4'.~.~f. ~-~'~, (14 thru 22) (23 thru 28) (6) OTHER ~%~ (29 thru 31) Company ~ ~ Lease & Well No. /k7~ ~ YES NO 1. Is the permit fee attached .......................................... d~ 2. Is well to be located in a defined pool ............................. 3. Is well located proper distance from property line .................. 4. Is well located proper distance from other wells .................... 5. Is sufficient undedicated acreage available in this pool ............ 6. Is well to be deviated and is wellbore plat included ................ 7. Is operator the only affected party ................................. 8. Can permit be approved before fifteen-day wait ...................... ~ Does operator have a bond in force .................................. ~ Is a conservation order needed ...................................... Is administrative approval needed ................................... Is the lease number appropriate ..................................... ~ Does the well have a unique name and number ......................... ~ 14. 15. 16. 17. 18. 19. 20. 21. 22. Is conductor string provided ........................................ Will surface casing protect fresh water zones ....................... Is enough cement used to circulate on conductor and surface ......... Will cement tie in surface and intermediate or production strings ... Will cement cover all known productive horizons ..................... Will all casing give adequate safety in collapse, tension and burst.. Is this well to be kicked off from an existing wellbore ............. Is old wellbore abandonment procedure included on 10-403 ............ Is adequate wellbore separation proposed ............................ 23. Is a diverter system required ....................................... 24 Is the drilling fluid program.schematic and list of equipment adequate ' 25. Are necessary diagrams and descriptions of diverter and BOPE attached. 26. Does BOPE have sufficient pressure rating - Test to ~o psig .. 27. Does the choke manifold comply w/API RP-53 (May 84) .................. 28. Is the presence of H2S gas probable ................................. For~and Stratigraphic wells: 29. Are~sented on potential overpressure zones? ............ eeeee~ ~ 30. Are seismic analysis data presented on shallow gas zones ..... 31. If an offshore loc., are survey results of seabed conditions pre~gnted Geology: Engi~e. ering: W-WB ~xj~, LCS ~'BEW ,,/---'"'~ .... ev: 02/17/88 32. Additional requirements ............................................. INITIAL GEO. UNIT ON/OFF POOL CLASS STATUS AREA NO. SHORE ,,,
