The URL can be used to link to this page

Home My WebLink About203-223 e e Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable by direct inspection of the file. :;:¿ 0 3- ~ ~"3 Well History File Identifier Organizing (done) D Two-sided III" 111I11" 111111 D Rescan Needed 111111111111/111111 RESCAN ~olor Items: D Greyscale Items: DIGITAL DATA OVERSIZED (Scannable) D Maps: D Other Items Scannable by a Large Scanner D Diskettes, No. D Other, No/Type: D Poor Quality Originals: Date If I "J-1; / D ~ I I Date: tf/~/Ð~ I I ,~ 0 +.dJL = TOTAL PAGES 1/0 I (Count does not include cover sheet) D~: O~ ~ OVERSIZED (Non-Scannable) ~L09S of various kinds: D Other:: D Other: NOTES: BY: ~ /s/ illf 11111111111111" III mE Project Proofing BY: ~ /s/ Scanning Preparation BY: f Production Scanning Stage 1 Page Count from Scanned File: 1-L.7- (Count does include cover sheet) Page Count Matches Number in scann~g prerration: V YES BY: ~ . Date: 4-/~¡O~ Stage 1 If NO in stage 1 page(s) discrepancies were found: YES 11111111111111 "III NO /s/ V\I1 P NO BY: Maria Date: /s/ 11111111111I111111I Scanning is complete at this point unless rescanning is required. ReScanned 11111111111111 "III BY: Maria Date: /s/ Comments about this file: Quality Checked 11I111111111 "11111 10/6/2005 Well History File Cover Page.doc • • .--~,;:~ MICROFILMED 03/01/2008 DO NOT PLACE ~,~; ... ANY NEW MATERIAL UNDER THIS PAGE F:1I,aserFiche\CvrPgs_InsertsuViicrofilm_Marker. doc ~ 3 f¥f'd ^Ò~(., DATA SUBMITTAL COMPLIANCE REPORT 3/2/2006 Permit to Drill 2032230 Well Name/No. HAPPY VALLEY A-4 Operator UNION OIL CO OF CALIFORNIA .5p~ ~t~~~~'-I API No. 50-231-20017-00-00 MD 10620. TVD 10515 /' Completion Date 3/23/2004.... Completion Status 1-GAS Current Status 1-GAS UIC N REQUIRED INFORMATION Mud Log No Samples No Directional Survey Yes -~._--- ----,_._~-~~-_._-- DATA INFORMATION Types Electric or Other Logs Run: Quad Combo, MFT, Sonic (data taken from Logs Portion of Master Well Data Maint Well Log Information: . Log/ Electr Data Digital Dataset Log Log Run Interval OH/ T¥ Med/Frmt Number Name Scale Media No Start Stop CH Received Comments ~ Report: Final Well R Open 8/9/2004 Mud Log 2 Col 71 10620 Open 8/9/2004 Part of Epoch EOW report t69 Mud Log 2 Col 71 10620 Open UnoCal "Custom View" i~ Part of Epoch EOW report Mud Log 2 Col 71 10620 Open UnoCal "Custom View" t.; Part of Epoch EOW report See Notes 2 Col 71 10620 Open 8/9/2004 Drilling Dynamics Log Part Of Epoch EOW report C Las 12618 Report: Final Well R 71 10620 Open 8/9/2004 Epoch EOW in Digital form leD C Pds 12671 Completion 9050 9235 8/27/2004 COMPLETION RECORD, I I HALLIBURTON FASDRILL I BRIDGEPLUG, 2.5" POWERJET HSD 3SPF, PRESSUREITEMP . og 12671 Completion 5 BS 9050 9235 8/27/2004 COMPLETION RECORD, HALLIBURTON FASDRILL BRIDGEPLUG, 2.5" POWERJET HSD 3 SPF, DSN 12671 I Log 12671 Completion 5 BS -mrsO 9347 8/27/2004 COMPLETION RECORD, I HALLIBURTON FASDRILL I BRIDGEPLUG, DSN 12671 og 12671 Completion 5 BS 5080 9248 Case 8/27/2004 COMPLETION RECORD, I PRESSURE, TEMPERA TU ~T1'~\r RE, DSN 12671 ~ FormationoMiGlõ I"". 5 Blu 10 10600 Open 6/14/2004 FORMATION TESTER, ARnAY INDUCTION, ~O 5~1~5ITY, DUAL ( ~t:U NEUTRON, l___~ cnMPr=I\I$AT~[1 ~0NIC DATA SUBMITTAL COMPLIANCE REPORT 3/2/2006 Permit to Drill 2032230 Well Name/No. HAPPY VALLEY A-4 Operator UNION OIL CO OF CALIFORNIA API No. 50-231-20017-00-00 MD 10620 TVD 10515 Completion Date 3/23/2004 Completion Status 1-GAS Current Status 1-GAS UIC N rz;g Gamma Ray 25 Blu 20 1 0440 6/14/2004 CML WELL SHUTTLE, I QUAD COMBO í I J¿6g Induction/Resistivity 25 Blu 20 10496 6/14/2004 CML WELL SHUTTLE, QUAD COMBO ~ Porosity 25 Blu 20 10450 6/14/2004 CML WELL SHUTTLE, QUAD COMBO I I 0 0 I ,köQ Density 25 Blu 20 10450 6/14/2004 CML WELL SHUTTLE, . QUAD COMBO 12674 Completion 9000 9473 6/14/2004 2.5 " 2506 POWERJET HSD 6HSPF 12674 Completion BS 9000 9473 6/14/2004 2.5 " 2506 POWERJET ~ HSD 6HSPF Pds 12675 Cement Evaluation 4100 1 0463 6/14/2004 SLIM CEMENT MAP TOOL ~C 12675 Cement Evaluation 5 BS 4100 10463 6/14/2004 SLIM CEMENT MAP TOOL, 12675 DSN Pds 12676 Completion 9858 9888 6/14/2004 COMPLETION RECORD, I~ 2.5" HSD POWERJETS Pds 12677 Completion 9050 9405 6/14/2004 COMPLETION RECORD I I 2.5" 2506 POWERJET I I HSD 6SPF Jxö9' 12677 Completion 5 BS 9050 9405 6/14/2004 COMPLETION RECORD I 2.5" 2506 POWERJET ~ HSD 6SPF 12678 Sonic --ztfT72 16600 Open 6/14/2004 DIPOLE SONIC IMAGER . og 12678 Sonic Col 4072 16600 Open 6/14/2004 DIPOLE SONIC IMAGER Well Cores/Samples Information: Sample Interval Set Name Start Stop Sent Received Number Comments Permit to Drill 2032230 DATA SUBMITTAL COMPLIANCE REPORT 3/2/2006 Well Name/No. HAPPY VALLEY A-4 MD 10620 TVD 10515 ADDITIONAL INFORMATION Well Cored? Y 10 Chips Received? ~ Analysis Received? --- Y/N -~~~ Comments: E I""-«rl<t l /)t ~-.. Compliance Reviewed By: Completion Date 3/23/2004 Operator UNION OIL CO OF CALIFORNIA API No. 50-231-20017-00-00 Completion Status 1-GAS Current Status 1-GAS UIC N Daily History Received? Q/N a/N Formation Tops o~ Ju.,^. COo..¿u",d ~ V\~~ . c..r--.) ~ tJ~ I~ ~_ / 7 4th¥~ ~ . Date: /7 ~~~ . State Plains Coordinates for HV -04 tit e Here are the coordinates for HV-04 Bob. Sorry for the confusion. Diane Surface: 1,270' FSL, 1 ,297' FEL, Sec 22, T2S, R 13W, 8M TPI: 1,846' FSL, 1,945' FEL, Sec 22, T2S, R13W, SM TD: 2,083' FSL, 2,258' FEL, See 22, T28, R13W, SM Diane Dunham, Unocal Alaska 909 W. 9th Avenue, Anchorage, AK 99501 tel. 907-263-7604, fax 907-263-7884 1 of 1 9/28/20043:00 PM 1 a. Well Status: OilD GasQ Plugged D Abandoned D Suspended D WAGD 1 b. Well Class: -T: . 20AAC 25.105 20AAC 25.110 Development D EXPlpr¡¡twx8S C GINJD WINJD WDSPLD Service D ., i If'¡¡J.ï~t No. of Completions Other Stratigraphic esf W 2. Operator Name: 5. Date Comp., ,sP.,~~ 12. Permit to Drill Number: Union Oil Company of California Aband.: 3 2..j o<.J 203-223 3. Address: 6. Date Spudded: 13. API Number: PO Box 196247, Anchorage, AK 99519 February 6, 2004 50-231-20017 4a. Location of Well (Governmental Section): 7. Date TD Reached: 14. Well Name and Number: Surface: 1,270' FSL, 1,297' FEL Sec. 22, T2S, R13W, SM .I March 19, 2004 . HV-04 Top of Productive Horizon: 8. KB Elevation (ft): 15. Field/Pool(s): .3~L- IC). ¡.¡ V2')(!fv'¿ ~ ,P,Q.¡; LJ 739 Total Depth: I I ¡5PL/ 9. Plug Back Depth(MD+ TVD): í , f¿ 9,260'/9,195' Deep Creek UnitlTyonek 4b. Location of Well (State Base Plane Coordinates): 10. Total Depth (MD + TVD): 16. Property Designation: Surface: x- 227,970' y- 2,189,814' 10,620'/10,515' C-061590 TPI: x- 227,346 y- 2,190,376 11. Depth Where SSSV Set: 17. Land Use Permit: Total Depth: x- 227,039 . y- 2,190,620 n/a n/a 18. Directional Survey: Yes Q No D 19. Water Depth, if Offshore: 20. Thickness of Permafrost: n/a feet MSL n/a 21. Logs Run: Quad Combo, MFT, Sonic 22. CASING, LINER AND CEMENTING RECORD WT PER SETTING DEPTH MD SETTING DEPTH TVD AMOUNT CASING GRADE HOLE SIZE CEMENTING RECORD FT TOP BOTTOM TOP BOTTOM PULLED 16" 83# K-55 0 103' 0 102' DRIVEN 9-5/8" 47# L-80 0 978' 0 977' 12-1/4" see schematic 7" 26# L-80 0 4,079' 0 4,043' 8-1/2" see schematic 3-1/2" 9.2# L-80 0 10,602' 0 10,498' 6-1/8" see schematic 23. Perforations open to Production (MD + TVD of Top and Bottom 24. TUBING RECORD Interval, Size and Number; if none, state "none"): SIZE DEPTH SET (MD) PACKER SET (MD) Perfs: 3-1/2", 9.2# 10,602 MD 3,926' MD T-80a: 8854' - 8874' (7/6/2004, 3 spf) T-80b: 8879' - 8894' (7/6/2004, 3 spf) 25. ACID, FRACTURE, CEMENT SQUEEZE, ETC. T-81: 8925' - 8945' (7/6/2004, 3 spf) T-91: 9202' - 9216' (7/6/2004, 3 spf) DEPTH INTERVAL (MD) AMOUNT AND KIND OF MATERIAL USED n/a Isolated Perfs: T-100: 9277' - 9306' (4/17/2004, 6 spf) T-105: 9362' - 9398' (4/14/2004, 6 spf) IT _1 An· OR"R' _ ORRR' ç: ""fI 26. PRODUCTION TEST Date First Production: Method of Operation (Flowing, gas lift, etc.): n/a Date of Test: Hours Tested: Production for Oil-Bbl: Gas-MCF: Water-Bbl: Choke Size: IGaS-Oil Ratio: Test Period ... Flow Tubing Casing Press: Calculated Oil-Bbl: Gas-MCF: Water-Bbl: Oil Gravity - API (corr): Press. 24-Hour Rate ..... 27. CORE DATA Brief description of lithology, porosity, fractures, apparent dips and presence of oil, gas or water (attach separate sheet, if necessary). Submit core chips; if none, state "none". ~~~ none .... CO',,,, ",' '" ¡ 2f' .".. .;._ 1 . ~.. SEP ~J~\ ~s .' '" -'/1;-0 . OR\G\NAL ' ·'.¡-;:<t;l ___J .. A.. .-- - JTIJ _ . ...._............-t II f'J IßfL.1I1L 1\ VVI" fLJL I V "1' ~ . STATE OF ALASKA __ .... ALASKA_ AND GAS CONSERVATION COMMIS5W..;-,..., WELL COMPLETION OR RECOMPLETION REPORT AND LOG" - Form 10-407 Revised 12/2003 CONTINUED ON REVERSE r::/VED I 2004 Ommiss;Oß NAME GEOLOGIC MARKERS M TVD 29. ORMATION TESTS Include and briefly su e test results. List intervals tested, and attach detailed supporting data as necessary. If no tests were conducted, state "None". 28. none BASE QAL Mid Beluga Tyonek Lower Tyonek 428.415 -3474.135 -5271.875 -7905.769 310.434 4248.577 6049.202 8700.843 RECEIVED SEP ... 1 2004 Alaska Oil & Gas Cons Com . . mlsSI n Anchorage 30. List of Attachments: directional survey, summary of morning reports, schematic 31. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: J. Gary Eller Printed Name: Philip J. Krueoer Signature: Title: Drilling Manager Phone: 907-276-7600 Date: 8/31/2004 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1a: Classification of Service wells: Gas Injection, Water Injection, Water-Alternating-Gas Injection, Salt Water Disposal, Water Supply for J njection, Observation, or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI (Top of Producing Interval), Item 8: The Kelly Bushing elevation in feet above mean low low water. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits (ex: 50-029-20123-00-00). Item 20: True vertical thickness. Item 22: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 23: If this well is completed for separate production from more than one interval (multiple completion), so state in item 1, and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 26: Method of Operation: Flowing, Gas Lift, Rod Pump, Hydraulic Pump, Submersible, Water Injection, Gas Injection, Shut-in, or Other (explain). Item 27: If no cores taken, indicate "none", Item 29: List all test information. If none, state "None". Form 10-407 Revised 12/2003 CONFIDENTIAL UNOCAL& API: 50-231-20017 AOGCC: 203-223 1270'FSL,1297'FEL Sec. 22, T2S, R13W, S.M. RT-THF: 23.54' RT-GL: 22.8' Tbg lift threads - 3%" IBT Tree cxn - 2%" Bowen cxn Production Tubing: 3%,',9.2 ppf, L-80, I BT -Mod Completion - Baker "H" chemical injection nipple at 2471' with 1/4",0.049" wall SS chemical injection line - Baker in-line ZXP packer at 3926' - Halliburton composite Fasdrill bridge plug at 9260' (7/6/2004) - XN Nipple @ 10,480' ID = 2.813", no-go = 2.745" Pluas: Halliburton Fasdrill composite bridge plugs at 9260' & 9356' (7/6/04) Directional Data: max hole angle = 16.8 deg max dogleg <3 deg/100 ft HV-4 schematic 7-14-2004 ) ~ z ~ z ~ z z XN ~ ~ PBTD = 9,260' TD = 10,620' ) Well Name: Happy Valley #4 Field: Deep Creek Unit State: Alaska Conductor: 16", 82.77 ppf, K-55 to 103' ~ Surface Casina: 9%",47 ppf, L-80, BTC to 978' Cmnt with 47 bbl of 12.8 ppg lead and 27 bbl of 15.8 ppg tail "G". Top-job with 4.8 bbl "G" cmt. Intermediate Casina: 7", 26 ppf, L-80, BTC-Mod to 4079' Cmnt with 74 bbl of 12.8 ppg LiteCrete lead and 17 bbl of 15.8 ppg "G" tail. Perfs: T-80a: 8854' - 8874' (7/6/2004, 3 spf) T-80b: 8879' - 8894' (7/6/2004, 3 spf) T-81: 8925' - 8945' (7/6/2004, 3 spf) T -91: 9202' - 9216' (7/6/2004, 3 spf) Isolated Perfs: T-100: 9277' - 9306' (4/17/2004, 6 spf) T-105: 9362' - 9398' (4/14/2004, 6 spf) T-140: 9858' - 9888' (4/16/2004, 6 spf) Production Casina: 3%,',9.2 ppf, L-80, IBT-Mod casing to 10,602' Baker in-line ZXP packer at 3926' Cemented with 178 bbl of 12.0 ppg Litecrete CONFIDENTIAL Drawn by: JGE July 14, 2004 ) ) 2/6/04 Skid Rig from HV#3 to HV #4 Lost hydraulic power & had to call in elect. Still hooking up service lines and resetting landings, stairs & ect. Power back. Installed valves on 16" surface pipe. Nipple up riser with Cameron using slip lock drilling adaptor. Hook up flow lines. Move in pipe rack and walks into position. Load extra drill collars on pipe rack. Pick up tools in well cellar and circulate mud through flow line Service top drive as grabber needed dyes changed Hang rig tongs and elevators installed Time spent picking up BHA and Hung 8" dc in mouse hole Re move same & L/dn. RIH and tag bottom at 79.4' Drill from 79.4' to 245' Pump ooh 3 stand 4" HWDP & rih wI 3 std 5" HWDP Drill from 245' to 924' Do to excessive Time on skid & elect troubles rig had 3 hrs of dn time 2/7104 Continue drill fl 924' t/ 983' (Sand bone fl 924' t/934' unable to drill with any more wt then 2k wI out Stalling TD(12k) & shaking of derrick broke loose dead line string weight indicator that powers Pason system which in turn disabled auto controls (rig had to be drilled manually & also had two system shut dns one on heat & one on oil) drilling of bone was acting like drilling under gauge hole - Discuss options wI town on calling TD early - ROP better fl 934' t/ TD @ 983' +- 20-30 fph (rig parson system still not showing ROP) Called TD early @ next tool jt & pump 60z carbide flag around & showed 5 bbls over cal. - Chk flow (ok) Pump ooh 4 std (ok) pooh wI no problems & chk BHA (Bit 1/8" out & rest of bit & BHA ok) - Stand back same Clear & clean floor - PJSM wI all personnel - R/up t/ run 9-5/8" csg -p/up Plup shoe & float jt bakerlock & install centralizer - chk floats (ok) P/up & run 9-5/8" csg Plup landing jt wI hanger & install circ swedge to wash dn - Brk circ & stage up GPM & wash to btm - PTSM wI new crew & chglout while conditioning mud - PJSM wI all personnel on rlup & cmt job - R/up lines Brk loff circ swedge & plup cmt head- Dowell pump 3 bbls water ahead & test lines (Leek in swing & chglout same -Dowell pump 1 bbl water ahead & test lines t/ 3000 psi (ok) (Scientific hand Broke Slick line memory gyro while Rigging up & Prepping for job) Rig pumped 40 bbls Mud push XL - Dowell pumped 47 bbls of lead slurry @ 12.8 ppg followed by 27 bbls tail slurry @ 15.8 ppg - drop plug (ok) cleared lines w/5 bbls water & rig displaced wi 63 bbls mud slight cmt shows in returns @ 32 bbls displacement away & last 15 bbls of returns had cmt weight of 10.8 - 11.5 PPG - bump plug 1 bbl off cal & tested csg t/2000 - 1977 in 30 min. CIP @ 1525 hrs Chk floats 1/2 bbl back (ok) - R/dn cmt head, line clear & clean floor & bail ext. & cut Cut gyro E-line Rehead same & clean cellar & prep for R/dn of riser & install of CIW MBS wellhead. Insert & Spot MBS well head thru cellar wi fork lift & prep for rig skid Plumb bob 9-5/8" X 16" & tag TOC fall back @ 37' 7" & Perform poor boy top job while RIH wI Scientific E line Gyro taking surveys every 10' & set dn @ 925' (lnc.1.62 - AZ = 300.78 & closure @ 18.83' ) Strip wire line POOH wI blocks Attempted back out landing jt No go pinched against RT - Pull RT & back out Landing jt & chk threads (ok) Nipple down riser - Install multi bowl spool While Continuing to prep to Skid rig *****Suspended operations on Happy Valley #4 & release rig to Happy Valley #5 AFE # 161788******* 2/15/04 Operations suspended 2/18/04 Operations Suspended ( cemented 7" casing on HV # 5, Set pack off & nipple down stack.) Skid rig, Pull 11 " 5M blind flange from top of HV #4 and install on HV #5 NU BOP, bell nipple, flow line, catch can, change HCR, RU mud line and panic lines, lay down rig up lines Rig up flow line & EQ Line from shaker tank to active pits WOTCO work on lower ram door hihge pin & seals Nipple up choke hose & pick up test joint Make up test plug set same & rig up test equipment prep for BOP test. Notified AOGCC of BOP Test. Reply was if we did not here back fromm them, was to carry on with test. Test Bops & work around WOTCO hands while repairs were being made to hinge pin & seals on single gate. Tested floor valves, choke manifold,kill line valves, choke line valves & top pipe rams @ 250-4500 psi Had leak on on lock downs for casing hanger, tighten same & retest ( good test) WOTCO Completed repairs on single gate @ 2100 hrs 2/19/04 Continue tsting BOP's, test annular 250/3500, test rams 250/4500PSI. Run Koomey draw down test and test gas detectors. Test choke manifold. Rig down test equipment & pull test plug, set wear bushing, lay down test joint. Service rig Make up 8 1/2" RR Hycalog PDC Bit. Run BHA # 2 Out of derrick. RIH Tag cement & wiper plug @ 928' DPM. Circulated bottoms up. Conducted choke drill with rig crew, all hands got tom operate choke. Tag top of float coller & Cement @ 928' DPM . Drill float collar @ 933' & shoe @ 976' + 20' of new hole to 1003' Circulate Hole clean. Looked like at least 60 plus percent formation. And the rest CONFIDENTiAL CONFIDENTIAL -- HV-04_AOGCC10-407Summary_AFE161718, last revised 9/15/2004, page 1 ) ) cement Perform LOT With 9.1 ppg KCL 405 psi 10 sec after pump shut down. 17 ppg EMW Rotary Drill FI 1003 - TOI 1128' ( Was able to get first survey @ sensor depth 1081' 1.28 degree I NC & 289.45 AZ ) continue rotary drilling to 1264' Slide from f/1255' - t/1264' unable to get good tool faces Pick up and circulate at 1/2 pump rate While BHI Reload dirrectional soft ware in computers. Rotary Drill & Directional Drill FI 1264' - TOI 2393' ( 650 GPM, 150 rpm) Blew pop off Shut down to replace pin in pop off valve. Drill from 2393' to 2519' and blew pop off valve Replaced pins in both valves to achieve a relief set point of 4500 PSI Rotary Drill FI 2519' - TOI 2899' 2/20104 HP down on high heat Drop pump rate to 600 GPM continue to drop angle per plan to 3470 Continue to slide aproximately 30' per stand and rotary drill for remainder of stand to 3654' had several ratty spots making for very hard slides Started slide at 3654' would not slide had to rock it to get started worked down to 3671' PU and set down taking weight with out ant pump pressure change. Possible ghost reamer or stabilizer hang up.PU and back reamed for a standand rotated down to 3712 kelly down. Continue to slide and nock down angle very ratty drilling hitting several bones to 3981 3981' had HP pumps go down, they were brought back on line and within a few more minutes went back down again Continue to drill very ratty would not slide PU and rotate 180' plhr to TD @ 4086' Reduced pump rates to about 575 gal per min Circulate and condition hole and mix dry job Drop carbide flag and pump around, Appears to be 14 bbl wash out, 8% for open hole. Pump dry job, previosly mixed POOH and stand back BHA left ghost reamer in string Pull wear ring and RU to run casing 2/21/04 Continue to RU to run 7" casing PU and run float equipment, bakerlocking all conections, install centralizers per shoe track diagram, check float equipment. RIH with 7" 26# 1-80 casing to 4040.82 PU hanger joint and hanger prepair to land, RIH and tagged fill 4070.82. NU Schlumberger cement head and pump hose, circulate and wash to shoe depth @ 4078', and land casing. Continue to circulate & reciprocate casing 1.5 BU untill shakers clean. ( had 8' of fill to wash casing down) PJSM with all parties involved in cement operations, pressure test lines to 4000PSI Pump 40 BBLS mud push followed by 74 BBLS 12.8 PPG lead cement, and 17 BBLS of 15.8 PPG tail slurry. Drop plug (did not see good indication of release from tatletale indcator, but felt plug leave head. and chase with5 BBLS water. Switched over to rig pump snd displaced with 148 BBLS of 9.3 PPG mud, bumped plug at 08:50. Displacement volumes were within 8 stroke of calculated voume. Pressure up to 4000 psi on casing. Pressure test casing to 4000 psi & hold for 30 min, ( good test lost only 25 psi) Bleed off presure got back 2 bbl floats held.RD Schlumberger, and clean floor, pull running tool and landing joint lay down same. Prep rig for skid Run 7" CIW MBS Packoff energise and test to 5000 PSI (Prep to pick up stack & move rig) RELEASED RIG @ 1200 HRS FROM HAPPY VALLEY # 4. & Move to happy valley # 3 3/12/04 On Happy Valley 3 Skid rig from Happy Valley 3 to Happy Valley 4 Set down stack, nipple up choke line, bell nipple, re-route Koomey lines, hook up turnbuckles Install ladder into cellar, steam clean OBM mess in cellar Set rotary table, set floorplates, install Katchcan on BOP and pick up mousehole Pick up test joint, set test plug, make up floor valves. Test BOP and related equipment to 150 psi low and 4500 psi high with 4' test joint, having trouble getting test on Top Drivr IBOP Lay down 4" test joint, test blinds to 150 psi low and 4500 psi high, pick up 3 1/2" test joint. While testing variable rams on 31/2" choke hose developed leak in middle of hose. Change out Choke hose 3/13/04 Change out choke hose perform accumlator test Finish testing VBR's and annular against 3 1/2" test joint 150 psi low and 4500 psi high, unable to get test on IBOP Pull test plug install WB, lay down landing joint & silicone around rotary table Chglout Hyd Ibop & saver sub Trouble shoot actuation of hyd IBOP (installed 180 deg out) Rig on dn time 2 hrs for IBOP & 2 hrs for Choke hose Tested hyd & mananullBOP 150 - 4500 psi (ok) P/up bit #3 & M/up BHA #3 Rih dry to 3904' Kelly up and pump 20 bbls 11 ppg spacer, followed by OBM, wash down to Float Collar at 3994' and change well over to OBM Well control expectations meeting and choke drill Drill out Float collar and cement to 4950' Circulate hole clean Work on Epoch sensor and set and test new Pressure relief system on mud pumps. Adjust pressure relief to 4000 psi Clean out cement, shoe, rathole and make 20' new hole to 4106' Perform LOT, 13.9 MWE, .73 gradient 3/14/04 CONFIDENTIAL -- HV-04_AOGCC10-407Summary_AFE161718, last revised 9/15/2004, page 2 ) Discuss LOT results and service rig Rotary Drill and slide 4106' to 5088' AST .5 hrs ART 5.6 hrs ADT 6.1 hrs Pipe in ground 91.3 FPH Rotary Drill and Slide 5088' to 6431' AST 1.6 hrs ART 6.6 hrs ADT 8.2 hrs Pipe in ground 111.9 FPH For the day AST 2.1 hrs ART 12.2 hrs ADT 14.3 hrs Pipe in ground 102.2 FPH Rotary Drill 4106' to 4331' Slide 4331' to 4394'180 Degrees Rotary Drill 4394' to 5088' Slide 5088' to 5151' 180 Degrees Rotary Drill 5151' to 5846' Slide 5846' to 5897' 180 Dregrees Rotary Drill 5897' to 6352' Slide 6352' to 6411' 180 Degrees Rotary Drill 6411' to 6431' 3/15/04 Drill 6431' to 7691' ART 6.0 hrs: AST 1.3 hrs: ADT 7.3 hrs: Pipe in ground 105' FPH Drill 7691' to 8483' ART 5.9 hrs: AST 2.9 hrs: ADT 8.4 hrs Pipe in ground 66' FPH For the day ART 11.9 hrs AST 4.2 hrs ADT 15.7 hrs Pipe in ground 85.5 FPH Drill 6431' to 6855' Drill 8146' to 8340' Slide 6855' to 6918' 180 Degrees Slide 8340' to 8364' 180 Degrees Drill 6918' to 7486' Drill 8364' to 8483' Slide 7486' to 7523' 180 Degrees Drill 7523' to 7675' Slide 7675' to 7691' 180 Degrees Drill 7691' to 7738' Slide 7738' to 7769' 180 Degrees Drill 7769' to 7802' Slide 7802' to 7841' 180 Degrees Drill 7841' to 7927' Slide 7927' to 7991' 180 Degrees Drill 7991' to 8055' Slide 8055' to 8091' 180 Degrees Drill 8091' to 8117' Slide 8117' to 8146' 180 Degrees 3/16/04 Drill and slide 8483' to 8874' ART 2.9: AST 4.3 hrs: ADT 7.5 hrs Pipe in Ground 32.5 FPH Actual ft. drilled 391' Drill F 18,874' - T I 9253' ADT 9.5 hrs. Pipe in Ground F.P.H. 34.5 Actual ft. Drilled 379' Rig Servo Drill F 19,253' - T 19,258' ADT .5 Pipe in the ground 10' FPH Actual ft. Drilled .5 3/17104 Drill F I 9,258' - T 19,885' TOTAL FEET DRILLED 626', PIPE IN GROUND 26' FPH ADT; 20.30HRS TOTAL HRS; 67 3/18/04 Drill F/9,885' - T 110,035' TOTAL FEET DRILLED 150' Drill F I 10,035' - T 110,515' TOTAL FEET DRILLED 480' 24 HRS TOTAL FEET DRILLED 630' PIPE IN GROUND 26.25' FPH 3/19/04 DRILLED F I 10,515' T 110,620' TD Pipe in ground 23.3 Circulate & pump nut plug sweep, To surface 36 bbls early. Shut down pumps stroke pipe Flswab test Circ. B/U no gas Flow Check, POOH T I 4,020' tight @ 9,760'-1 Ok over, 9067'- 10k over, 8,750 - 20k over, 8,690' 20k over Static test well @ shoe, ok , POOH LID BHA, Clean Floor R/U reeves wire line, Pre-Job safety meeting. RIH with tools, Tools stopped at 8,982' log F 18,982 to T I 4,07,7 Quad Combo, Run gamma F I shoe T I surface 3/20104 Run gamma F 14,077' - T I surface Out of hole with wire line, LID tools and RID Reeves Change out elevator inserts to P/U 3 1/2" DP 13.3 FI Pipe Conveyed logging tools Rig Service P/U 3 1/2" stand Back in Derrick Drift 3 1/2" with 2.5" rabbit Pre - Job Safety Meeting - P/U Logging BHA & Tools I Sources Circ. And Test flow tools Circ. @ 3BPM/925psi. @ 892' T I H - T I Shoe Drift pipe WI 2.25" Rabbit Fill Pipe & Circ. @ 3BPM/925psi. @ 4,048' T I H - Fill pipe and break circ. @ 6,062',8,025, 10,618 Drift pipe WI 2.25" Rabbit Circ. B.U. gas units 256 units POOH to loggin point 10,510' Drop dart launch logging tools measured depth of tools 10,614 Monitoir well pump dry job, POOH start conveyed logs F/10,614' - T/10,299' gas cut mud @ surface Circ, gas out of well Surface to surface high gas 75 units POOH and log well FI 10,299' - T I 8,500' POOH W I logging tool assembly State waived BOP test: Waived By JIM REGGS 3/21/04 POOH W I logging tool assembly LID LOGGING BHA & LOGGING TOOLS CLEAN FLOOR AND RIG UP FOR WIRELlNE LOGS Wire line logs (Reeves) Formation PSI test logs RID Reeves wireline Pre- Job Safety Meeting - R/U Schlumberger Wire line Equipment Start in hole& Run Dipole Sonic logs did not have problem getting to bottom had one set down @ 9000' State waived BOP test: Waived By JIM REGGS 3/19/04 CONFIDENTIAL -- HV-04_AOGCC10-407Summary_AFE161718, last revised 9/15/2004, page 3 ) ') 3/22/04 Schlumberger finish run Dipole Sonic log & Pooh wire line Rig down Schlumber wire line pull ware bushing Pick up Lake charles cement head load wiper dart & lay down same. Rig up WOTCO Tubing tongs & equipment, pump OBM Out of mouse hole. Make up Tubing ID Safety valve & cross overs Pre job safety meeting & operations meeting on running tubing Pick & make up shoe + jt + Float collar + jt + landing joint- baker lock same Run 3 1/2" 9.2# AB Modified Buttress tubing to 4086' Make up circulating head. And circulate complete circulation at shoe. Continue running 3 1/2" tubing 6631' Circulate bottoms up & pick up 7" BOT ZXP Packer Continue Run in hole to 8090' Pick up injection mandrel make up control line & test same to 1200 psi for 5 min. Continue running and banding same with 3/4" stainless bands run in hole maintaining 700~1200 psi control line pressure. 3/23/04 Run 3-112" tbg from jt 314 to jt 356 P/U jts 357 & 358, tag 27' in on 358, LID 358. P/U valve and cement head. Rig up cement hose. Circulate hole clean of coal cuttings and gas units. 100k up weight, 88k down weight. Dress tbg hanger, PJSM, R/U hoses. Break out cement head, M/U hanger Land hanger, test lines to 4,900 psi, Pump 44 bbl of mud-push, Pump 178 bbl LiteCrete, displace wI 91.3 bbl base oil, bump plug wI 4,600 psi. Run in hanger lock-downs, RID cement hoses, blowdown lines. Test 3-1/2" x 7" annulus to 1,500 psi for 30 min. Only lost 87 PSI, RID cement equipment and tubing tongs. RID cement head, clean floor. LID landing jt and pup. Set BPV. Pull mouse hole. Clean OBM from cellar, BOP stack and rig floor. R/U BOP pick-up slings. NID Katch Kan, bell nipple, flowline, choke line and HCR valve. NID BOP Install seal flange and master valve, test to 500 psi, pull BPV, install two-way check and test seal flange I master to 5,000 psi. Prepare rig for skid to HV #5. 4/7104 Operations suspendedRemove blind tapped flange from top of master valve, pull 3" CIW type "H" BPV well had slight vacuum. NU remainder of tree Operations suspended 4/8/04 Operation Suspended RU Pollard wireline and RIH with 2.75" GR to 10489 WLM RIH with 2.5" Dummy Guns 30' long to 10489'. POOH and rig down Pollard wire line.RU Schlumberger and run in hole to 10474' ELM, tagged bottom picked up 200' run back to bottom and corelate. Pressure up to 1300 PSI and maintained pressure while POOH, logging up. Operation suspended 4/10104 Operation suspended PJSM rig up braided line unit and swab down to 810'Wireline crew changed out at 03: 30 HRS continue swabbing to 950'Changed out cups and rehead RIH tagged fluid at 1060 drop down to 1550 had fluid back to surface at 370', Tagged fluid at 1300' drop down to 1850' and pulled 200' feet of fluid. hanged cups made 3 runs and lowered fluid level to 2020' Used up most of the swab cups that had been working, had tried a varying combination in an attempt to lift fluid with minimal success. In an attempt to swab well down to desired depth, we were able take one of the heavy lift cups that had not worked for us and grind a relief groove aproximately 1/4" down from each of the 3 lips, this would allow for the lips to expand easier and hold fluid. Our fist attempt worked very well with a fluid draw down from 2040' to 2308', however cup did not last long. Several more were modified untill fluid level was at 3100'Rig down Pollard and stage equipment at NNA Operation Suspended 4/14/04 Operations suspendedSchlumberger arives, rig up and test lubricator to 200/3000 PSI, Prior to arming complete Unocal explosives checklist, conduct a pre arming safety meeting. Also move flowline from HV-3 to HV-4 and test to 4500 PSI.RIH with gun #1, found fluid level at 3085' on way in. RIH to 9470', correlate off of CCL to SCMT log of 4/8/04 Position guns from 9380' to 9398' fire at 15:15 HRS good indication of firing. 20' of 2.5" hollow carrier guns loaded with 18' of 6 SPF 60 degree phasing ePowerjet PJ2506 charges. POOH monitoring pressure with no immediate sign of increase.OOH all shots fired RU for GR #2. Shoot fluid levels with echometer, locate fluid CONFIDENTIAL -- HV-04_AOGCC10-407Summary_AFE161718, last revised 9/15/2004, page 4 ') ) 2900'-3000'. RIH with gun #2, founfd fluid level at 3060' on way in. RIH to 9470 pick to corelate off of CCL position guns from 9380' to 9362' fire at 17:20 HRS good indication of firing. 20' hollow carrier loaded with 18' of 6 SPF 60 degree phasing enerjet. POOH, SWS rig down. No immediate sign of pressure on tubing.Monitor pressure throughout night. 4/16/04 Operations suspended.MIRU Schlumberger. SITP = 0 psi. Conduct PJSM and go through perforating safety checklist. Test lubricator to 500/3000 psi using water. PU 20' of 2.5",6 spf, 60-deg phase HSD guns loaded with 10.5 gm PJ2506 charges. RIH with guns. Locate fluid level at 2980'. Agrees favorably with fluid level echo-meter shots which found the fluid level at 2853'. Correlate depth to SCMT log of 4/8/04 using CCL.PerfT-140 Sand 9868'-9888'. POOH. No pressure response. Confirm all guns fired. PU 10' of same 2.5" guns and RIH. Locate fluid level at roughly the same place. Tie in with CCL.Perf remaining T-140 interval 9858'-9868'. POOH, no pressure change still.AII guns fired. RDMO Schlumberger. Operationis suspended allowing well to build pressure. 4/17104 Operation suspended Rig up Schlumberger, Pre-job safety and operations meeting, review perforating checklist. Test lubricator to 300 low and 3000 psi highRIH with 29' of 2-1/2" 6spf 60 degree phasing HSD gun load with PJ 2506 charges, tie into SCMT log dated 04-08-2004 Perf interval 9277' to 9306', good indication of guns firing, fired guns at 13:20 hrs, no pressure increase. POH with Schlumberger Rig down Schlumberger Operation suspended At 10:30 Hrs Fluid level shot 2721' 2723' 2826' E-Line tagged fluid at 2900 At 14:37 Hrs Fluid level shot after perforating 2687' 2691' 2684' 4/18/04 Oerations suspended @ 06:00 press 24psi. Rig up wireline and test lubricator T/3,OOOpsi. RIH WISample Bailer tagged fluid@1 ,000' to mid perfs take sample,(92%water 8%Base oil, mud engineer checked total Chlorides at 1100 Fresh water levels),Rih tag Btm @ 10,485' take sample small quantity sand, R/U to swab HV. #4.Made 13 swab runs, initial first fluid tag was 750' and final fluid level should be 3500' estimated. Well never showed any indication of gas influx and the total tubing volume swabbed (2750') was 24 Bbls and the surface strap was 27 Bbls. The well had 4 PSIG on it at Midnight when rigging up to run static gradient survey. NOTE: see swab report on page 4 Standby-by while crane working with wellhead hand on HV#3 Rigging up 125" slick line to run Static Gradient Survey 4/19/04 Run Static Stop Survey with Tri-gauges. Make following 3 minute stops while RIH 25',3000',6000',8000', 9292',9380',9873',10275',10375' & 10475' for 10 minutes. POOH at 120' FPM looking for temp anomalies. Picked up 2.75 gauge ring and ran in hole looking for fluid level. Slickline fluid level tag at 2500' with about 4 psig on tubing (We had swabbed fluid level down to an estimated 3500' yesterday. Rigged off HV #4 and helped Cameron pull BPV from HV #3 using Pollard boom truckSent files to John Butler waiting on data! 6/8/04 SDFNDemob coil tubing from well HV-6Conduct prejob safety and operations meeting with Schlumberger crew.MIRU nitrogen pump onto tubing of well HV-4. Pressure test nitrogen lines to 5000 psi. SITP = 200 psi. Bullhead nitrogen down tubing to displace water into the perfs. Anticipate needing to pump 1000 gallons of nitrogen at a final surface pressure of 3100 psi to displace fluid into the open perfs. Pump-in pressure running up to 4500 psi indicating that the perfs are reluctant to take back the water in the wellbore. Continue pumping until 1000 gal of nitrogen has been displaced. Final pressure = 4600 psi.RDMO nitrogen unit.SDFN 7/1/04 Operations suspended.RU flowline and SSV on well HV-4. Pressure test lines to 4500 psi. SDFN 7/2/04 CONFIDENTIAL -- HV-04_AOGCC10-407Summary_AFE161718, last revised 9/15/2004, page 5 , ) ) SDFNStandby waiting on Schlumberger to arrive from Swanson River. End up postponing job because Schlumberger worked all night and having difficulty lining up test hands for the weekend.SDFN 7/6/04 SDFNMIRU Schlumberger. Conduct prejob safety meeting and pressure test lubricator to 4000 psi.SITP = 2935 psi. RIH with Halliburton Fasdrill bridge plug, tied into SCMT log with CCL. PU from 9300' to 9278', tool hung up. Can go down but unable to go up. Called office, decided to set plug where it was hanging up. Set Fasdril BP at 9356'. POOH.PU another Fasdrill bridge plug and RIH. Tied into SCMT log, set plug at 9260'. POOH.Bled tubing pressure down to 1800 psi. Pressure stable indicating plug is holding. PU and RIH with 14' of 2.5",3 spf, 120-deg phase hollow carrier guns loaded with 10.5 gm PJ2506 charges. Bled tubing pressure down to 900 psi. Tied into SCMT log with CCL, perforated T-91 Sand 9202' - 9216'. Negligible pressure build. POOH, all shots fired.MU 20' section of same guns and RIH. Unable to idenify fluid level while RIH with guns. Correlate, perfT-81 Sand 8925' - 8945'. Pressure rose from 909 psi to 914 psi. POOH. 7/7104 Monitored tubing pressure for several hours following perforating T-81 Sand. TP = 926 psi when tools OOH. All shots fired.TP = 943 psiTP = 959 psiTP = 977 psiTP = 993 psiMU Schlumberger temperature/pressure gauges and RIH. Found fluid level at 7100'. No indication of flow from the T~91 Sand but positive indication of flow from the T-81 Sand. TP = 1026 psi. POOH.Shot fluid level at 6820'. Received instructions from office to perforate remaining sands.RIH with 15' section of 2.5",3 spf, 120-deg phase hollow carrier guns loaded with 10.5 gm PJ2506 charges. Correlate to SCMT log, perfT-80 Sand 8879' - 8894'. TP increased from 1088 psi to 1090 psi when guns fired. POOH. All shots fired.RIH with 20' section of same guns. Fluid level at 6490' via echometer. Correlated, perfed T-80 Sand from 8854' - 8874'. Pressure increased from 1164 to 1165 psi upon firing. POOH. All guns fired.RDMO Schlumberger. Attempted to flow well. Pressure died right off without any positive indication of trying to flow.Secure well, SDFN CONFIDENTIAL -- HV-04_AOGCC10-407Summary_AFE161718, last revised 9/15/2004, page 6 >Information >Well >Directional Surveys >Ful' 'fey ) Select Well: HV4 ._J Report Name Well Date Created Position Log HV4 8/31/2004 We!! Name CURRENT STATUS API KB Surf X Surf Y (it) (it) (it) ··········.nierpölète.··] HV4 UNKNOWN 502312001700 739 227,970 2,189,814 ;:".~;~¡';";...."...............".""""."..,.,,..-}JI;/lMþ,..., , MD TVD SSTVD X Off Y Off X Y Inc Azim uth (ft) (ft) (ft) (ft) (ft) (it) (ft) (deg) (deg) 0 0 739 0 0 227,970 2,189,814 0.0 0 50 49 690 0 0 227,970 2,189,814 0.5 311 100 99 640 0 0 227,970 2,189,814 1.0 311 150 149 590 -1 1 227,969 2,189,815 1.1 303 200 199 540 -2 1 227,968 2,189,815 1.2 314 250 249 490 -2 2 227,968 2,189,816 1.2 308 300 299 440 -3 3 227,967 2,189,817 1.3 311 350 349 390 -4 3 227,966 2,189,817 1.3 303 400 399 340 -5 4 227,965 2,189,818 1.3 308 450 449 290 -6 5 227,964 2,189,819 1.4 313 500 499 240 -7 6 227,963 2,189,820 1.4 314 550 549 190 -8 6 227,962 2,189,820 1.3 317 600 599 140 -9 7 227,961 2,189,821 1.3 314 650 649 90 -9 8 227,961 2,189,822 1.2 310 700 699 40 -10 9 227,960 2,189,823 1.3 311 750 749 -10 -11 9 227,959 2,189,823 1.2 311 800 799 -60 -12 10 227,958 2,189,824 1.2 307 850 849 -110 -13 11 227,957 2,189,825 1.1 309 900 899 -160 -13 11 227,957 2,189,825 1.2 310 919 918 -179 -14 12 227,956 2,189,826 1.3 302 1,081 1,080 -341 -17 13 227,953 2,189,827 1.3 289 1,145 1,144 -405 -18 14 227,952 2,189,828 1.5 290 1,207 1,206 -467 -20 14 227,950 2,189,828 1.5 296 1,271 1,270 -531 -21 15 227,949 2,189,829 1.6 288 1,334 1,333 -594 -23 15 227,947 2,189,829 1.7 288 1,397 1,396 -657 -25 16 227,945 2,189,830 1.7 291 1,460 1,459 -720 -27 17 227,943 2,189,831 1.7 283 1,523 1,522 -783 -29 17 227,941 2,189,831 1.8 286 1,586 1,585 -846 -30 18 227,940 2,189,832 1.9 292 1,649 1,648 -909 -33 19 227,937 2,189,833 2.8 292 1,712 1,711 -972 -36 20 227,934 2,189,834 3.3 297 1,775 1,774 -1,035 -39 22 227,931 2,189,836 3.4 297 1,839 1,838 -1,099 -43 23 227,927 2,189,837 4.3 290 1,902 1,900 -1,161 -48 26 227,922 2,189,840 5.8 294 1,965 1,963 -1,224 -54 29 227,916 2,189,843 6.8 301 2,028 2,026 -1,287 -61 33 227,909 2,189,847 7.9 305 2,091 2,088 -1,349 -69 39 227,901 2,189,853 9.3 310 2,155 2,151 -1,412 -77 46 227,893 2,189,860 10.3 313 2,218 2,213 -1,474 -85 54 227,885 2,189,868 11.1 319 2,281 2,274 -1,535 -93 65 227,877 2,189,879 12.2 326 2,344 2,336 -1,597 -100 76 227,870 2,189,890 12.5 328 2,470 2,459 -1,720 -114 99 227,856 2,189,913 12.3 328 CONF'OENTIAl 2,596 2,582 -1,843 -129 122 227,841 2,189,936 12.6 328 2,723 2,706 -1,967 -144 145 7"'''',826 2,189,959 12.5 327 ) 2,849 2,829 -2,090 -159 168 '- ,t 11 2,189,982 12.7 327 2,912 2,891 -2,152 -166 179 227,804 2,189,993 12.5 326 2,975 2,952 -2,213 -174 191 227,796 2,190,005 12.7 326 3,038 3,014 -2,275 -181 202 227,789 2,190,016 11.7 325 3,164 3,137 -2,398 -196 222 227,774 2,190,036 11.1 323 3,227 3,199 -2,460 -203 232 227,767 2,190,046 11.0 323 3,290 3,261 -2,522 -210 241 227,760 2,190,055 11.1 324 3,353 3,323 -2,584 -217 251 227,753 2,190,065 10.9 323 3,416 3,385 - 2,646 -224 260 227,746 2,190,074 10.1 323 3,479 3,447 -2,708 -231 269 227,739 2,190,083 9.9 322 3,542 3,509 -2,770 -237 277 227,733 2,190,091 8.9 322 3,605 3,571 -2,832 -243 284 227,727 2,190,098 7.3 321 3,668 3,634 -2,895 -248 290 227,722 2,190,104 6.2 322 3,732 3,697 -2,958 -252 295 227,718 2,190,109 5.4 318 3,795 3,760 -3,021 -256 299 227,714 2,190,113 5.1 314 3,858 3,823 -3,084 -260 302 227,710 2,190,116 4.7 312 3,921 3,886 -3,147 -263 306 227,707 2,190,120 4.4 313 3,984 3,949 -3,210 -267 309 227,703 2,190,123 3.9 314 4,032 3,996 -3,257 -269 311 227,701 2,190,125 3.8 318 4,157 4,121 -3,382 -275 318 227,695 2,190,132 4.2 320 4,283 4,247 -3,508 -281 325 227,689 2,190,139 4.3 322 4,536 4,499 -3,760 -290 336 227,680 2,190,150 2.3 317 4,788 4,751 -4,012 -298 344 227,672 2,190,158 2.9 315 5,040 5,003 -4,264 -308 355 227,662 2,190,169 3.5 320 5,293 5,255 -4,516 -316 365 227,654 2,190,179 2.4 317 5,546 5,508 -4,769 -325 373 227,645 2,190,187 3.2 315 5,798 5,760 -5,021 -336 384 227,634 2,190,198 3.9 310 6,051 6,012 -5,273 -350 395 227,620 2,190,209 3.8 307 6,303 6,263 -5,524 -365 404 227,605 2,190,218 4.4 300 6,555 6,515 -5,776 -381 414 227,589 2,190,228 4.2 302 6,807 6,766 -6,027 -399 426 227,571 2,190,240 5.6 302 7,060 7,017 -6,278 -421 439 227,549 2,190,253 5.9 300 7,312 7,268 -6,529 -445 454 227,525 2,190,268 7.1 303 7,438 7,393 -6,654 -459 462 227,511 2,190,276 7.2 302 7,564 7,518 -6,779 -472 470 227,498 2,190,284 6.9 300 7,754 7,706 -6,967 -493 483 227,477 2,190,297 8.0 303 7,880 7,831 -7,092 -508 492 227,462 2,190,306 7.5 299 8,006 7,956 -7,217 -522 501 227,448 2,190,315 7.6 302 8,132 8,081 -7,342 -536 509 227,434 2,190,323 7.6 301 8,258 8,206 -7,467 -550 518 227,420 2,190,332 8.0 301 8,385 8,331 -7,592 -565 527 227,405 2,190,341 7.9 301 8,637 8,581 -7,842 -596 546 227,374 2,190,360 8.3 302 8,890 8,831 -8,092 -629 565 227,341 2,190,379 9.1 299 9,016 8,955 -8,216 -646 575 227,324 2,190,389 9.3 303 9,143 9,081 -8,342 -664 587 227,306 2,190,401 10.6 305 9,269 9,204 -8,465 -683 601 227,287 2,190,415 10.8 305 9,395 9,328 -8,589 -703 615 227,267 2,190,429 11.4 304 9,521 9,451 -8,712 -724 629 227,246 2,190,443 12.1 306 9,647 9,574 -8,835 -746 645 227,224 2,190,459 12.3 307 9,773 9,697 -8,958 -768 662 227,202 2,190,476 13.1 308 9,900 9,821 -9,082 -791 681 227,179 2,190,495 14.4 311 10,026 9,943 -9,204 -815 701 227,155 2,190,515 14.1 311 CONFIDENTIAL 10,152 10,278 10,404 10,065 10,187 10,308 -9,326 -9,448 -9,569 -839 -863 -888 722 743 766 1"'" 131 .. 107 227,082 2,190,536 2,190,557 2,190,580 14.7 15.2 15.8 310 312 312 ) CONFiDENTIAL . Unocal Alaska 909 W. 9th Avenue Anchorage, AK 99501 Tele: (907) 263-7889 Fax: (907) 263-7828 E-mail: ()1I(kand~l!un()cal.c()m . RECEIVED AUG 2 7 2004 UNOCAL@) ,6J8~ka Oil & Gas Cons. Commi$5lon Anchorage Debra Oudean G & G Technician Date: August 25, 2004 To: AOGCC Helen Warman 333 W. 7th Ave. Ste#100 Anchorage, AK 99501 DATA TRANSMITTAL HAPPY VALLEY 3, 4, 6, 7 ;05.. z, 1,.,- WELL LOG TYPE SCALE LOG INTERVAL B- FIL~ CD PAPER NOTES , " , .. " .' DATE LOGGED LINE """ HAPPY VALLEY·3 COMPLETION RECORD 3.5 FASDRILL 5 INCH 5/27/2004 9228·9900 1 1 1 0 PLUG 2.5 HSD POWERJETS ,/ HAPPY VALLEY·4 COMPLETION RECORD HALLIBURTON 5 INCH I 7"""'1905"'" m'l DATA COMBINED I FASDRILL BRIDGE PLUG 2.5 _.1 POWERJET HSD 3 SPF - - ~()'j..~],"'; lllHAPPY VALLEY·4 ICO,MPLETION RECORD HALLlBUTRON ¡5INCH I 7/6/2004,r9050'92~l1ro 0 ON 1 CD I FASDRILL BRIDGE PLUG I I I ¡HAPPY VALLEY·4 ¡COMPLETION RECORD PRESSURE / 15iNCH 7/6/2004[5080,9248 1111[1 0 ¡ TEMPERATURE I I I I I , j ril'/. IIHAPPYVALLEY~COMPLETlONRECORD2.5HSDPJ Is INCH 6/15/2004'/9600'11605 I1f111/-, Of ',_ I I) 'f,,(I1 T 3SPF PRESSURE, TEMPERATURE __ -.-! &1'0 (p HAPPY VALLEY·7 ARRAY INDUCTION BOREHOLE '¡m- 7/16/2004/50,8388 I t I~l ' °1 I .L (0 COMPENSATED SONIC MD INCH " I DATA COMBINED /}O'1 [AÃRAYINDUCTIONBOREHOLE 12,INCH 17/16/2004150'83,88 1111[0 OON1CD /) ¡COMPENSATED SONIC TVD . I I I MUDLOGGING FINAL WELL REPORT r--I " I OOTO1 Please acknowledge receipt by signing and returning one copy of this transmittal or FAX to (907) 263-7828. Date: [Fwd: [FWd:, RE: Unocal's gas well 9 miles .ell rd. Ninilchik]] e 2á8.;J:) 3 Jody, please put a copy in EACH of the Happy Valley well files. Thanks -------- Original Message -------- Subject:[Fwd: RE: Unocal's gas well 9 miles oilwell rd. Ninilchik] Date:Mon, 23 Aug 200415:20:04 -0800 From:Thomas Maunder <tom maunder(ci¿admin.state.ak.us> Organization:State of Alaska To:John Norman <john norman(ci¿admin.state.ak.us>, Daniel T Seamount JR <dan seamount(ci¿admin.state.ak.us>, Bob Crandall <bob crandall(ci¿admin.state.ak.us>, Robert Mintz <robert mintz(ci¿law.state.ak.us> CC:Jody J Colombie <jody colombie(ci¿admin.state.ak.us> All, It appears that there may be a potential issue brewing in the Happy Valley area. If! receive any further emails, I will forward them on. Tom -------- Original Message -------- Subject:RE: Unocal's gas well 9 miles oilwell rd. Ninilchik Date:Mon, 23 Aug 200415:03:18 -0800 From:J oseph Kashi <kashi(ci¿alaska.net> To:'Thomas Maunder' <tom maunder(ci¿admin.state.ak.us> CC:'phillip yezierski' <philski9(ci¿yahoo.com>, 'Carol D Lee' <carol lee(ci¿dnr.state.ak.us> Dear Ms. Lee: As you can see from the prior Emails set out in the thread below, I am inquiring about whether any production units have been established in the Caribou Hills east of Ninilchik on Oilwell Road. Your assistance is appreciated. Thanks Joe Kashi -----Original Message----- From: Thomas Maunder [mailto:tom maunder@admin.state.ak.us] Sent: Monday, August 23, 2004 2:30 PM To: Joseph Kashi Cc: 'phillip yezierski'i Carol D Lee Subject: Re: Unocal's gas well 9 miles oilwell rd. Ninilchik Mr. Kashi, Here is the text of an email I sent to Mr. Yezierski last week in response to his questions. I am sorry I did not copy you on that response. With regard to your specific questions on production units, I suggest you contact Ms. Carol Lee at the Division of Oil and Gas (DOG). Her eddress is above. lof3 8/25/2004 2:50 PM [Fwd: [Fwd:, RE: Unocal's gas well 9 miles .ell rd. Ninilchik]] . Tom Maunder, PE AOGCC Mr. Yezierski, The Unocal development you are referring to is called Happy Valley and is within the Deep Creek Unit administered by the State Division of Oil and Gas. The AOGCC has issued permits for 8 wells to be drilled from the same pad located in section 22. According to the information published for these wells, 4 wells reach total depth in section 22 and 1 each in sections 14, 15, 21 and 28. No wells have been proposed for sections 23 or 24. Our regulations do require notice to landowners depending on the distance from the proposed activity. In the case of these gas wells, all owners within 3000' laterally of the well at the production zone should be notified. Although you did not provide the footage distances to the section lines for your property, it would appear that it is likely beyond the 3000' notice distance. If you would like, we can add you to our notice list for any activities that require public notice in this area. You may also explore our web site at www.aogcc.alaska.gov. In the "Orders" section under conservation orders you will find several orders relating to the drilling of the wells at Happy Valley. "Drilling Statistics" would have information regarding when permits are issued or wells are completed. With regard to Unit administration and other land activities, you might contact Ms. Carol Lee at the Division of Oil and Gas. I have included her eddress above. I hope this information is of help. Tom Maunder, PE AOGCC Joseph Kashi wrote: >Please advise whether any production units have been established in this >area and if so, what are the boundaries. If there is a different state >agency to contact in that regard, please advise with contact name and >contact information. > >Thanks > >Joe Kashi >AK Bar #7811107 > >-----Original Message----- >From: phillip yezierski [mailto:philski9@yahoo.com] >Sent: Friday, August 20, 2004 12:19 PM >To: tom maunder@admin.state.ak.us >Cc: kashi@alaska.net >Subject: Unocal's gas well 9 miles oilwell rd. Ninilchik > >Dear Mr. Maunder, > >As per our conversation on August 20,2004 at 11:20 >a.m. > >I own property approximately 10.5 miles down oilwell 20f3 8/2512004 2:50 PM [Fwd: [FW~~RE: Unocal's gas well 9 miles .ell rd. NiniIchik]] . >Rd. in Ninilchik from the Sterling Hwy. The Legal >description is as follows. T02S R13W S24 HM0730482 >Alaska State Land Survey 72-81 Tract A. > >Upon my inspection of the property on August 19,2004 I >noticed the installation of a 12" pipeline from a >Unocal facility at about 9 miles on oilwell rd. from >the Sterling Hwy. > >1 own the Mineral Rights to the above mentioned >property and would like to know if I am due a >consideration for possible oil or gas which this well >might be producing and might be part of what lies >beneath my property. > >Any questions I can be reached at (907)252-5239 >Very truly yours > >Phillip Yezierski > > > > > John K. Norman <John Norman~admin.state.us> Commissioner Alaska Oil & Gas Cmservation Commission 30f3 e 8/25/2004 2:50 PM . Unocal Alaska 909 W. 9th Avenue Anchorage, AK 99501 Tele: (907) 263-7889 Fax: (907) 263-7828 E-mail: oudeand@unocal.com . UNOCALi> Debra Oudean G & G Technician Date: August 6, 2004 To: AOGCC Helen Warman 333 W. ib Ave. Ste#100 Anchorage, AK 99501 DATA TRANSMITTAL HAPPY VALLEY 4 J.. ú 3 - "Z À 1. Drilling Dyn~l11ics Log Custom View Log (MD) Custom View Log (TVD) Formation Log Final Well Reports LAS Data, RW Explorer files and Final Report, 1 ~ f.9¡ s> Please acknowledge receipt by signing and retuming one copy of this transmittal or FAX to (907) 263-7828. Received By:D ¿~~ ð,~ Date:DD q ~ ~~ <1 /~/({ (v f\ . Unocal Alaska 909 W. 9th Avenue Anchorage, AK 99501 Tele: (907) 263-7889 Fax: (907) 263-7828 E-mail: oudeand@unocal.com . ~ '" , ," " '. . -, ..,,' '. ;-..... ....., '<'" '..' ," . " ", ....,. . .. UNOCAL Debra Oudean G & G Technician Date: June 4, 2004 To: AOGCC Robin Deason 333 W. 7th Ave. Ste#100 Anchorage, AK 99501 DATA TRANSMITTAL - HAPPY V ALLEY 4 HAPPY VALLEY-4 Please acknowledge receipt by signing and returning one copy of this transmittal or FAX to (907) 263-7828. Receive ,~~ Date: 0 0 Notification of impending spud - Happy Valley Well... e N N eJ ¿ Ñ N -. '" -v D' (I ~f '1,0 Winton; Please be advised that we have begun moving the Kuukpik Rig #5 to the Happy Valley main pad to drill HV Wells #3, #4 & #5. The anticipated spud date is Sunday (+/- 1 day). This e-mail is also intended to notify the AOGCC of several minor changes to our approved General Drilling Procedure. Please be advised that we are planning the following procedural changes for the purpose of optimization: (1) Batch Drilling: The rig package can be safely & efficiently skidded between the three wells, which were permitted 7' apart, similar to an offshore rig package. Unocal plans to batch drill the three 12 1/4" holes, skidding from well to well, followed by three 8 1/2" intermediate holes, followed by three 6 1/8" holes. The ability to skid the rig and employ batch drilling techniques offers potential cost savings due to; (R) only PU & LD pipe one time for three wells, (b.) more efficient mud usage (use the spud mud for three sections, the intermediate WBM for three sections, etc.), and (c.) more efficient BHA handling (one BHA potentially can drill three sections in a row). The attached schedule shows when we plan to nipple up and test BOPs for drilling 8 1/2" & 6 118" holes. Please note that we do not intend to utilize a diverter, as this requirement has been waived by the AOGCC. «Batch Drill and Test Schedule 1-15-04.mpp» (2) Casing Drilling: We plan to utilize Weatherford's DwC (drill with casing) technology on the 12 1/4" surface holes. Essentially we intend to drill the 12 1/4" hole with the 9 5/8" casing, using a (PDC drillable) 12 1/4" BBL drill shoe, and then cement the casing to surface as per the approved program. This technique is particularly attractive in a batch drilling environment. In addition, we intend to utilize a KCL-WBM for the 8 1/2" hole instead of the original planned LSND-WBM. This is expected to further minimize waste generation, since less hole washout problems are predicted with the KCL-WBM. Finally, we have 'tweaked' the trajectories of the first two wells, Happy Valley Wells #3 & #4. Although the geologic targets remain the same, we intend to kick off from vertical just below the 9 5/8" surface casing instead of as permitted (below the 7" intermediate casing shoe). Essentially, kicking off shallower shortens the distance to the target, thus reducing the measured depth of the well at the permitted objective location. It also offers minor advantages with respect to collision avoidance. I will 1 of 2 1/27/20044:01 PM Notification of impending spud - Happy Valley Well... . . send you the revised trajectories if you want them. Please let me know if additional information is required or if I can be of service in any way. Thanks. Jerry F. Bowen, P.E. Advising Drilling Engineer Office: 907-263-7640 Cell: 907-360-2490 Home: 907-688-2278 Fax: 907-263-7884 2 of 2 1/27/20044:01 PM ~~-. 2-o.t "!. UNOCAL Location: Kenai Peninsula, Alaska Field: South Kenai Gas Field Installation: Happy Valley Slot: HV #4 Well: Happy Valley#4 Wellbore: HV#4 Ver4 -800 -700 -600 -500 -400 Scale 1 cm = 50 ft TD-Casing PI. 3 1/2in Casing T-70 Sand Series T -50 Marker HappyValley#4 Target Top Upper Tyonek EOD 7" Casing PI. Begin Build EOC KOR 9 5/8" Casing PI. -300 -200 -100 East (feet) -> o 100 200 Created by: Planner Date plotted: 27-Jan-2004 Plot reference IS HV#4 Ver4. Ref well path is Happy Valley#4 Vers#4. Coordinates are in feet reference HV #4. True Vertical Depths are reference Rig Datum. Measured Depths are reference Rig Datum. Rig Datum: Datum #1 Rig Datum to mean sea level: 738.50 ft. Plot North is aligned to TRUE North. 1100 1000 900 800 700 600 500 ^ 400 I Z 0 ;:¡. 300 ::T - ø' CD 200 - - 100 0 -100 -200 en 0 Q) ãï -300 0 3 II -400 CJ1 0 ;::I> 300 400 ¢:: 0 -600 0 M II E 0 -0 Q) ñi 0 C/) 600 1200 1800 2400 3000 3600 - - () J!! 4200 - :5 C. 4800 () C ñi 5400 U :¡:¡ ... ~ 6000 () ::::J ... t- 6600 I V 7200 7800 8400 9000 9600 10200 10800 11400 RKB Elevation: 732.4' j l 9 5/8" Casing Pt. KOP EOC Begin BuildlTum 10.22 EOC Begin Drop 11.89 8.89 I I 2.89 ¿j L EOD 7" Casing pt. Top Upper Tyonek HappyValley#4 Targe T -50 Marker T-70 Sand Series j l TD-Casing pt. 3 1/2in Casing UNOCAL U.·· IIIf/WIIJA' " ,. ,0';: "......., Location: Kenai Peninsula, Alaska Field: South Kenai Gas Field Installation: Happy Valley Slot: HV #4 Well: Happy Valley#4 Well bore: HV#4 Ver4 Created by: Planner Date plotted: 27 -Jan-2004 lot reference is HV#4 Ver4. Ref wellpath is Happy Valley#4 Vers#4. Coordinates are in feet reference HV #4. True Vertical Depths are reference Rig Datum. Measured Depths are reference Rig Datum. Rig Datum: Datum #1 Rig Datum to mean sea level: 738.50 ft. Plot North is aligned to TRUE North. DLS: 1.00 deg/100ft WELL PROFILE DATA Point MD Inc Azi TVD North East deg/100ft V. Sect , Tie on 0.00 0.00 315.69 0.00 0.00 0.00 0.00 0.00 End of Hold 1100.00 0.00 315.69 1100.00 0.00 0.00 0.00 0.00 End of BuildlTurn 1350.00 5.00 290.00 1349.68 3.73 -10.24 2.00 9.82 KOP 1700.00 5.00 290.00 1698.35 14.16 -38.91 0.00 37.31 End of BuildlTurn 2232.35 14.67 320.24 2222.52 74.09 -104.01 2.00 125.67 End of Hold 2621.44 14.67 320.24 2598.92 149.85 -167.03 0.00 223.91 Target HV 4088.54 0.00 0.00 4050.00 293.47 -286.50 1.00 410.13 Target HappyValley#4 T 7884.54 0.00 0.00 7846.00 293.47 -286.50 0.00 410.13 ToO. & End of Hold 10938.54 0.00 0.00 10900.00 293.47 -286.50 0.00 410.13 -600 -0 600 1200 1800 2400 3000 3600 4200 4800 5400 Scale 1 em = 300 ft Vertical Section (feet) -> Azimuth 315.69 with reference 0.00 N, 0.00 E from HV #4 . e FRANK H. MURKOWSKI, GOVERNOR AIfASIiA OIL AND GAS CONSERVATION COMMISSION Phil Krueger Drilling Manager Unocal PO Box 196247 J\nchorage,AJ( 99519 333 W. 7'" AVENUE. SUITE 100 ANCHORAGE. ALASKA 99501-3539 PHONE (907) 279-1433 FAX (907) 276-7542 Re: Happy Valley #4 Unocal Permit No: 203-223 Surface Location: 1270' FSL, 1297' FEL, Sec. 22, T2S, R13W, SM Bottomhole Location: 1551' FSL, 1579' FEL, Sec. 22, T2S, R13W, SM Dear Mr. Krueger: Enclosed is the approved application for permit to drill the above referenced exploration well. This permit to drill does not exempt you from obtaining additional permits or approvals required by law from other governmental agencies, and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. A weekly status report is required from the time the well is spudded until it is suspended or plugged and abandoned. The report . should be a generalized synopsis ofthe week's activities and is exclusively for the Commission's internal use. The permit is approved subject to full compliance with 20 AAC 25.055. Approval to perforate and produce is contingent upon issuance of a conservation order approving a spacing exception. Unocal assumes the liability of any protest to the spacing exception that may occur. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Please provide at least twenty-four (24) hours notice for a representative of the Commission to witness any required test. Contact the Commission's North Slope petroleum field inspector at 659-3607 (pager). Sincerely, ./'-' f~L Sara¡;-:fiálin / Chair L /0 7 . J(. I ./ / ! / \¿/~ '-M" /::; / ; - (/~_./ \ \.,) BY ORDER OF THE COMMISSION DATED this ~q day of December, 2003 cc: Department ofFish & Game, Habitat Section wlo encl. Department of Environmental Conservation wlo encl. e Unocal Corporation e P.O. Box 196247 Anchorage, AK 99501 Telephone (907) 263-7660 UNOCALe Phil Krueger Drilling Manager Thuffiday, Dec. 18,2003 Alaska Oil and Gas Conservation Commission 333 West th Avenue Anchorage, Alaska 99501 Attn: Commission Chair Sarah Palin Re: Application for Permit to Drill (Form 10-401) Happy Valley #4 Dear Commissioner Palin, Attached for your approval is an application for permit to drill (Form 10-401) for the Happy Valley #3 Well. Unocal respectfully requests a waiver of the requirement for a diverter on the 12 ~" surface hole as allowed under AOGCC Regulation 20 AAC 25.035 (h) (2). Please refer to attached Supporting Documentation. The anticipated start date for moving the rig is mid-January with a late-January spud date. If you have any questions please contact myself at 263-7804 or Mr. Jerry Bowen at 263-7640. bvrün ~~eW~ rbA Phil Krueger Drilling Manager LWB/s Enclosure RECEIVED DEC 1 92003 Alaska Oil & Gas Cons. Commission Anchorage \NGA- I tll.'"S[2.003 . STATE OF ALASKA . ALASKA OIL ~D GAS CONSERVATION C~ISSION PERMIT TO DRILL 20 MC 25.005 1 a. Type of work Drill: X Redrill: 1 b. Type of well Exploratory: X Stratigraphic Test: Development Oil: Re-Entry: Deepen: Service: Developement Gas: Single Zone: Multiple Zone: X 2. Name of Operator 5. Datum Elevation (DF or KB) 10. Field and Pool Union Oil of California (Unocal) 738.5' KB to MSL feet Wildcat in Beluga 3. Address 6. Property Designation & Tyonek Gas Sands P.O. Box 196247 Anchorage, AK 99519 C 061590 4. Location of well at surface 7. Unit or property Name 11. Type Bond (see 20 MC 25.025) 1270' FSL, 1297'FEL, Sec. 22, T2S, R13VV, S.M. Happy Valley At top of productive interval 8. Well number Number U 62-9269 1551'FSL, 1579'FEL, Sec. 22, T2S, R13VV, S.M. Happy Valley #4 At total depth 9. Approximate spud date Amount $200,000 1551' FSL, 1579' FEL, Sec. 22, T2S, R13VV, S.M. 02/20/04 12. Distance to nearest 13. Distance to nearest well 14. Number of acres in property 15. Proposed depth (MD and TVD) property line 2259 feet 1769 feet 3040.04 11,447' /11,383' feet 16. To be completed for deviated wells 17. Anticipated pressure (see 20 MC 25.035 (e)(2») Kickoff depth: 4100' feet 40· Maximum hole angle: Maximum surface 3838 psig At total depth (TVD) 4929 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) N/A 16" 82.77 A-252 (welded) 60-80' 0' 0' 60-80' 60-80' N/A - driven to refusal 12 1/4" 95/8" 53.5 N-80 BTC 1037' 0' 0' 1037' 1037' 93 bbls (320 sx) 81/2" 7" 29.0 L-80 BTC-mod 4100' 0' 0' 4100' 4100' 75 bbls (245 sx) 61/8" 31/2" 9.2 L-80 IBTC-mod 11,447' 0' 0' 11,447' 11 ,383' 217 bbls (531 sx)' 'Contingent upon log analysis. 19. To be completed for Redrill, Re-entry, and Deepen Operations. Present well condition summary RECEIVED DEC 1 92003 Alaska Oil & Gas Cons. Commission Anchorage 20. Attachments: Filing fee: X Property Plat: X BOP Sketch: X Diverter Sketch: Drilling program: X Drilling fluid program: X Time vs. depth plot: X Refraction analysis: Seabed report: N/A 20 AAC 25.050 requirements: 21. I herby certify that the foregoing is true and correct to the best of my knowledge: 8y~~9I~ /'l;P. Phil Krueger Title: Drilling Manager Date: 12/18/2003 Signed: Commission Use Only Permit Number API number I Approval date ,I; l/ð 7 See cover letter .2r"J,3- 2.-2...3 ..so -2....1 /-- 2. oc> / ? ¡~ Z' YJ for other requirements Conditions of approval Samples required: [I Yes Þ<I No Mud log required: [] Yes }q' No . Hydrogen sulfi~e measures [] Yes .w No Directional survey required WYes [I No ·T-e~t BOPE to 4-<;)00 p~ l. Requlreþworklng pressure for BOPE I.l~i)1 3M;\ [ I 5~ 110M; [I 15M ~. \ . '~. ¿ Other: ex wA-/+L ,-S. O~c; (. 1. d{,it<?-T ':1t~.1^ I ~:g~ .~ ¡ ~ oý)pro<Je- . PM 'ZV 4-f{.<:.. 2.1;. -?~ 0 O~ \, ~~ V\-e(.; f ~ f::, \.o\.W fy rder of J~ (h Approved by . Ongtnal Slgn~ Y Commissioner the Commission Date: I Z t q ¡¿;; ':)é:l1 é:lII r elllll Form 10-401 Rev. 12-1-85 ORIGINAL"8FL Submit in triplicate DEe 3 0 _: e e List of Attachments 1. Permit to Drill (form 10-401) 2. Waiver Request 3. Surveyors Location Plat 4. Acreage Map wI Offset Wells & Trajectories 5. General Drilling Procedure 6. Predicted Days vs. Depth Curve 7. Proposed Wellbore Schematic 8. M.A.S.P. Calculation & Casing Design Factors 9. Maximum VMe Stress Calculation 10. Proposed Well Trajectory 11. Kick Tolerance Output 12. HV #1 Leak-Off Test Results 13. Leak Off Test Procedure 14. Cement Volume Calculations 15. Cellar & BOP Stack Diagram 16. Choke Manifold Diagram 17. Cuttings Disposal Description 18. Offset Well Usable Quality Water Salinity Calculations & Graph 19. Log Section from NNA #1 Showing Water Salinity Transition 20. Preliminary Mud Program e e WAIVER REQUESTS Unocal respectfully requests waivers to; (1.) AOGCC regulations 20 AAC 25.035 (C) (2.) AOGCC regulations 20 AAC 25.050 (C)(1) WAIVER #1 : Unocal request permission to drill the 12 %" suñace hole to a depth of +1- 1 d37' without a diverter. AOGCC regulation 20 AAC 25.035 (h) (2) stipulates: (h) llUpon request f the operator, the commission will, in its discretion, approve a variance...... (2) from the diverter system requirements in (C) of this section if the variance provides at least equally effective means of diverting flow away from the drill rig or if drilling experience in the near vicinity indicates that a diverter system is not necessary." Based on our experience drilling 12 %" suñace holes in Happy Valley #1 & #2, it has been proven conclusively that no shallow gas hazards exist beneath this pad to a depth of at least 1037' BRT. The 12 %" suñace hole for Happy Valley #3 will be drilled from the same pad as Happy Valley #1 (suñace location +1-70' away), and to the same depth as Happy Valley #1 suñace hole. The Geologist, Dave Buthman, has reviewed the shallow geology and has prepared the following summary of the shallow lithology: From surface to 1037' VD beneath the Happy Valley surface pad, we anticipate the following lithologies: 0-300': interbedded med to coarse grained sand and coarse gravels 300-1037': interbedded light gray silty claystones, argillaceous siltstones, gray silty claystones, light gray fine to medium grained sandstones, with a few thin brown lignitic coals. We do not anticipate any significant faulting, nor do we expect any oil or gas to be trapped, as no suitable seals exist within this shallow section. For the purpose of basic risk mitigation, Unocal will utilize a gellnative spud mud which is expected to weigh approximately 9.3 ppg when drilling at the planned suñace hole TD of 1037', to eliminate the risk of a shallow water flow. e e WAIVER #2: Unocal requests permission to drill the 12 %" surface hole to +1-1037' without surveying until after the 9 5/8" casing is cemented. AOGCC regulation 20 AAC 25.050 (h) stipulates: (h) lIUpon application, the commission will, in its discretion, waive all or part of the directional survey requirements of this section or approve alternate means for determining the location of a wellbore if the variance at least equally ensures accurate surveying of the wellbore to prevent well intersection, to comply with spacing requirements, and to ensure protection of correlative rights. " Due to plans to drill the 12 %" surface hole vertically to 1037', there is no cost-effective means to survey once each 500' as required in regulation 25.050 (C)(1). Unocal will obtain the required surveys at the first opportunity after cementing the 9 5/8" casing, before drilling the 8 "h" hole, to eliminate the risk of a well-to-well collision and ensure accuracy of the final BHL. AS STAKED HAPPY VALLEY NO. 4 GRID N: 2189814.180 GRID E: 227969.834 LATITUDE: 59"59'09.138"N LONGITUDE: 151"29'07.698"W ELEV. 71 6' e """"'" ...... <-: OF AI.. 't ... "<'y ........ ~C\ " ... ~ '\ ..' "~\,); : ~...,. .Â:.....:1: I, :*....49Ii:iN "r*~ ""................................... ~ "" "" "" "" ~................................... III' ~ "?ð ~.M. SCOTT MclANEY: ... 1/'. .' - I~ 11'.)\ ". 4928-5 ..' _ ~ ~. .- 'I .~ ;;:............~t-~ .: t.. .rV¡:-tssl~\. ,'" ,\\""" PROPOSED HAPPY VALLEY NO.4 WELL SURFACE LOCATION HAPPY VALLEY NO.1 PAD ~ J: ...J UJ u.. Ò "- N ~ e OILWELL RD. SCALE 1 inch - 300 ft. ~ 4110 I i NOTES 1) BASIS OF COORDINATES: NGS CORS STATION "KEN 1" NAD27 ALASKA STATE PLANE ZONE 4. 2) BASIS OF ELEVATION: NGS BM W75 NAVD88. 3) SECTION LINE OFFSETS DERIVED FROM TIES TO BLM MONUMENTS AT SW CORNER SECTION 10 AND SE CORNER SECTION 12 T2S R13W SM FOUND THIS SURVEY 1297' FEL HV#4 SECTION 22 TOWNSHIP 2 SOUTH RANGE 13 WEST SEWARD MERIDIAN ALASKA SEC 22 SEC 23 SEC 27 SEC 26 APPLICANT: UNDCAL ... 1r. 9th ........ . Anchoraie. AI( 99519-7685 HAPPY VALLEY NO.4 WELL SURFACE LOCATION NINILCHIK, AK P.O. Box 46B SOLCOTNA. AK 99669 Project: 033097 Consul-l:ing c; roup T es-l:ing RevisioD8: TEL 907.2B3.421 B FAX 907.2B3.3265 Dw¡: 033097sld Date: 12/10/09 FIGURE: 1 8 9 17 3 24 26 25 DEEP CREEK UNIT HAPPY VALLEY 4 N A 0.5 0.25 0 0.5 Alaska State Plane Zone 4, NAD27 Happy Valley #4 GENERAL PROCEDURE 1,000 - 2,000 3,000 4,000 5,000 C' ~ ~ '-' 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 J l'" It J ., U _~""J"'" HAPPY VALLEY #4- PLAN DAYS VERSUS DEPTH 30 3 Time (Days) ~_t '_I_V"'-"_' _._v f t,... RKB to GL & tbg hanger:::: 22.50' 2 9 5/8" surface casing cemented to surface in 12 y,." hole wi lead/tail system. Lead slurry: 800' of 13 ppg class 'G' wi gel extender, additives Tail slurry: 200' of] 5.8 ppg class 'G' wi additives Assume 50% excess, assume total slurry volume = 85 bbls Chemwash & MudPush to displace Water Based Mud 7" intermediate casing cemented to 2000' in 8 Yz" hole wi lead/tail system. Lead slurry: 2000' of 13 ppg class 'G' wi gel extender, additives Tail slurry: 500' of 15.8 ppg class 'G' wi additives Assume 30% excess, assume total slurry volume = 75 bbls Chemwash & Mudpush to displace Water Based Mud 16" 9-5/8" 7" 3 1/2" nyd N-80 L-80 L-80 n/a - butt weld BTC 0' BTC (AB Mod) 0' IBTC(ABMod) 0' nyd 40 26 9.2 1037' 4100' 11,447 3 x 2,500' SFO-1 CI Methanol injection mandrel (2.992" 10) 3 Yz" production casing cemented to 7" shoe in 6 1 18" hole wi single slurry system consisting of: 12 ppg premium liteweight cement. Assume 20% excess required (total slurry volume = 236 bbls) Chemwash & Mudpush to displace Oil Based Mud TD = 11,447' MD /11,384' VD Max. inclination =21·, KOP @ 4100' MD Job Template #1 lREVISED: 12/18/03 DRAWN BY: JFB CASING DESIGN WELL: Happy Valley #4 FIELD: So. Kenai Sect 1 MUD WT. 9.3 PPG MASP= 763 psi" Sect. 2 MUD WT. 9 PPG MASP= 3,838 psi Sect. 3 MUD WT. 9.9 PPG MASP= 3,838 psi INTERVAL CASING SIZE BOTTOM TOP LENGTH WT. 9-5/8" 1037 0 1037 40 TVD 1000 0 2 7" 4100 0 4100 26 TVD 4100 0 3 3-1/2" 11447 0 11447 9.2 TVD 11383 0 DATE: 16-Dec-03 DESIGN BY: Jerry Bowen TENSION MINIMUM COLLAPSE COLLAPSE WEIGHT TOP OF STRENGTH PRESS @ RESIST. MINIMUM DESCRIPTION W/OBF SECTION TENSION BOTTOM wlo TENSION MASP YIELD GRADE THREAD LBS LBS 1000 LBS SF TENSION PSI' PSI SF COLL. PSI" PSI SF BURST L-80 BTC 41480 41480 979 23.60 440 3090 7.02 763 5750 7.54 L-80 BTC-mod 106600 81,000 667 8.23 1804 5410 3.00 3838 7240 1.89 e L-80 IBT-mod 105312.4 87,000 207 2.38 5009 10530 2.10 3838 10160 2.65 " See attached sheet for calculation of MASP , Collapse pressure is calculated; Normal Pressure Fluid Gradient for external stress (.44 psilft) and the casing evacuated for the internal stress (0 psilft) e e e Maximum Anticipated Suñace Pressure Calculation & Verification of 7" Casing Design Happy Valley Well #'l tj. Kenai Peninsula, Alaska Assumptions: ~<t"S~ vJG.1\- 1. Based on offset drilling & well test data, the pore pressure gradient is predicted to be "'~PSi/ft gradient from surface to planned total depth at 11,383' VO BRT. Unocal has drilled two wels to 9700' V~hiS pad, and has reviewed data from three other deeper wells within a 2.5 mile radius (NNA #1, HV #31-22 & Oeep Creek Unit #1). 2. The MAS.P. during drilling operations will be governed by the 7" shoe frac gradient, and is calculated based on a full column of gas between the 7" shoe and the surface. The shoes for HV #3 will be at the same depth as the shoes in HV #1, thus the LOT data from HV #1 is useful for relatively accurate kick tolerance & MASP calculations. 3. The M.A.S.P. during production operations will be the estimated SIBHP minus the gas hydrostatic pressure between TO & the surface. The 7" intermediate casing must be designed to handle a potential burst load case based on a shallow leak in the 3 1/2" pipe early in the life of a 11,383' VO gas completion (i.e. before reservoir pressure declines). M.A.S.P. Calculation During Production Phase: Max. pore pressure at T.O. = 11383'VOx & 4929 psi - (0.096 psi/ft * 11383 ft) = = 4929 psi MAS.P. (tbg leak at surface) = = 3838 psi M.A.S.P. Calculation During Drilling Phase: Est. Frac pressure at 7" shoe 4100 ft. x 0.904 psi/ft = = 3706 psi MAS.P. during drilling = 3706 psi - (.08 psi/ft x 4100 ft.) = = 3378 psi Casing Design Verification A. Triaxial Stress Calculation - 7" Intermediate Casing at Surface - M.A.S.P. During Production Phase VMe = (1/(2o.5})*( ((6c6a}2)+((6a-6/)+( (6r-6,}2) }0.5 Where; 6a = ((Axial Load [lbs.])/((TT/4)(002 - 10ma/))) ± ((Og*0*E}/137510) 6, = ((P;*IOma/}-(Po*002}}/(002-IOma/) + (((p¡-Po)*(002}*(IOma/}}/((02)*((002}-(IOma/}))) 6r = ((P;*IOma/}-(P 0 *002}}/(002-IOmax 2) - (((p¡-p o)*(002}*(IOmax 2)}/((02}*((002}-(IOma/}}}} Nomenclature: VMe = Yon Misies equivalent triaxial stress, psi 6a = Axial stress, psi (due to load) 6, = Transverse (hoop) stress, psi 6r = Radial stress, psi e e 00 = Outside Diameter of pipe, inches 10max = Maximum inside diameter of pipe, inches (usually 00-1.75 w.t.) 0= Diameter of interest, inches (worst case = 10max in this case) E = Modulus of elasticity (30 x 106 psi) 09 = Dogleg, °/100' (assumed 0°/100' at surface) p¡ = Internal Pressure, psi Po = External Pressure, psi Solution: 6a = «Axial Load [lbs.])/«TT/4)(002 - 10ma/))) ± «09 *0*E)/137510) 6a = «81000)/«TT/4)(72)-(6.36652)))) ± «0*6.3665*30x106)/137510) 6a = 12,179.90 psi 6t = «P;*IOma/)-(Po*002))/(002-IOma/) + «(p¡-Po)*(002)*(IOma/))/«02)*«002)-(IOma/))) 6t = «3851 *6.2862)-(0*72))/(72-6.36652) + «(3838-0)*(72)*(6.2862))/«6.2862)*«72)-(6.2862)))) 6t = 40,643.02 psi 6r = «P;*IOma/)-(P 0 *002))/(002-IOma/) - «(p¡-p o)*(002)*(IOma/))/«02)*(002)-(IOma/)))) 6r = «3838*6.3665)-(0*72))/(72-6.36652) - «(3838-0)*(72)*(6.36652))/«6.36652)*«72)-(6.36652)))) 6r = -3,838.00 psi VMe = (1/(2o.5))*( «6c6a)2)+( (6a-6/)+( (6,-6t)2) )05 VMe = (1/(2°·5))*«(40643-12180)2)+«12180-(-3838.00))2)+«(-3838)-40643)2))0.5 VMe = 39,021.01 psi The calculated maximum theoretical VMe triaxial stress of approximately 39,021 psi, which occurs in the Production Tubing Leak Load Case, compares favorably with the planned 7" 26 ppf L-80 material, which has a yield strength of 80,000 psi. The overall VMe design factor is 2.05. The MAS.P. of 3838 psi compares favorably to the burst rating of 7,240 psi. The joint strength of 667 kips compares favorably to the anticipated slip load of 81 kips. As an addiitonal back-up, the 9 5/8" 40 ppf N-80 surface casing has a burst rating of 5750 psi and a joint strength of 979 kips. All wellhead components are rated to 5000 psi working pressure, with the exception of the X-mas tree which is rated to 6500 psi working pressure. e e IGASBHP.txt Gas well Bottom Hole Pressure calculation 12-17-2003 Happy valley Masp SPECIFIC GRAVITY OF GAS = 0.5700 (AIR=l) CRITICAL TEMPERATURE OF GAS.. 348.1 DEG. R CRITICAL PRESSURE OF GAS 671.5 PSIA WELL HEAD TEMPERATURE = 40 DEG. F BOTTOM HOLE TEMPERATURE = 120 DEG. F WELL DEPTH (TUBING LENGTH) = 11383 FEET DEPTH INCREMENTS 100 FEET INSIDE DIAMETER OF PIPELINE 2.992 INCHES PIPE ROUGHNESS = 0.00060 INCH GAS FLOW RATE 0 MSCF/DAY WELL HEAD PRESSURE = 3838 PSIA BOTTOM HOLE PRESSURE = 4930 PSIA PRESSURE DIFFERENCE (PBH-PWH) = 1092 PSI 0 page 1 d <.} '-e <L> > <L> ¡:: E- -2000 0 2000 Vertical Section at 311.110 [2000ft/in] +' ff .... o ~ '-' ..c '5 o if] W est( -)/East(+) [lOOOft/in] , Unocal Oil & Gas e lanning Report - Geographic Field: South Kenai Gas Kenai Peninsula, Alaska USA Map System:US State Plane Coordinate System 1927 Geo Datum: NAD27 (Clarke 1866) Sys Datum: Mean Sea Level Map Zone: Coordinate System: Geomagnetic Model: Alaska, Zone 4 Well Centre igrf2000 Site: Happy Valley Main Pad Site Position: Northing: 2189799.21 ft Latitude: 59 59 9.005 N From: Map Easting: 228034.74 ft Longitude: 151 29 6.416 W Position Uncertainty: 0.00 ft North Reference: True Ground Level: 718.00 ft Grid Convergence: -1.29 deg Well: Happy Valley Well #4 Slot Name: Surface Position: +N/-S 0.00 ft Northing: 2189799.21 ft Latitude: 59 59 9.005 N +E/-W 0.00 ft Easting : 228034.74 ft Longitude: 151 29 6.416 W Position Uncertainty: 0.00 ft Reference Point: +N/-S 0.00 ft Northing: 2189799.21 ft Latitude: 59 59 9.005 N +E/-W 0.00 ft Easting : 228034.74 ft Longitude: 151 29 6.416 W Measured Depth: 16.50 ft Inclination: 0.00 deg Vertical Depth: 16.50 ft Azimuth: 0.00 deg Wellpath: Preliminary Plan #1 Drilled From: Well Ref. Point Used HV #1 surface location Tie-on Depth: 0.00 ft Current Datum: Nabors #129 @ 16.5'RKB Height 734.50 ft Above System Datum: Mean Sea Level Magnetic Data: 10/22/2003 Declination: 20.19 deg Field Strength: 55023 nT Mag Dip Angle: 72.97 deg Vertical Section: Depth From (TVD) +N/-S +E/-W Direction ft ft ft deg 0.00 0.00 0.00 311.11 Plan: Plan #1 Date Composed: Version: Tied-to: 10/21/2003 3 User Defined Principal: No Plan Section Information 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4100.00 0.00 0.00 4100.00 0.00 0.00 0.00 0.00 0.00 0.00 5125.70 20.51 311.11 5103.93 119.46 -136.87 2.00 2.00 0.00 0.00 5421.08 20.51 311.11 5380.57 187.52 -214.85 0.00 0.00 0.00 0.00 6446.78 0.00 0.00 6384.50 306.98 -351.72 2.00 -2.00 0.00 180.00 11446.78 0.00 0.00 11384.50 306.98 -351.72 0.00 0.00 0.00 0.00 HV #4 (TO) Section 1 : Start Hold 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 0.00 0.00 100.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 200.00 0.00 0.00 200.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 300.00 0.00 0.00 300.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 400.00 0.00 0.00 400.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 500.00 0.00 0.00 500.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 600.00 0.00 0.00 600.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 700.00 0.00 0.00 700.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 800.00 0.00 0.00 800.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 900.00 0.00 0.00 900.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1000.00 0.00 0.00 1000.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1100.00 0.00 0.00 1100.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1200.00 0.00 0.00 1200.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1300.00 0.00 0.00 1300.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 · Unocal Oil & Gas _ ""-lanning Report - Geographic 1400.00 0.00 0.00 1400.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1500.00 0.00 0.00 1500.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1600.00 0.00 0.00 1600.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1700.00 0.00 0.00 1700.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1800.00 0.00 0.00 1800.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1900.00 0.00 0.00 1900.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2000.00 0.00 0.00 2000.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2100.00 0.00 0.00 2100.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2200.00 0.00 0.00 2200.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2300.00 0.00 0.00 2300.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2400.00 0.00 0.00 2400.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2500.00 0.00 0.00 2500.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2600.00 0.00 0.00 2600.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2700.00 0.00 0.00 2700.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2800.00 0.00 0.00 2800.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2900.00 0.00 0.00 2900.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3000.00 0.00 0.00 3000.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3100.00 0.00 0.00 3100.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3200.00 0.00 0.00 3200.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3300.00 0.00 0.00 3300.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3400.00 0.00 0.00 3400.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3500.00 0.00 0.00 3500.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3600.00 0.00 0.00 3600.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3700.00 0.00 0.00 3700.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3800.00 0.00 0.00 3800.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3900.00 0.00 0.00 3900.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4000.00 0.00 0.00 4000.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4100.00 0.00 0.00 4100.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Section 2 : Start Build 2.00 4200.00 2.00 311.11 4199.98 1.15 -1.31 1.75 2.00 2.00 0.00 0.00 4300.00 4.00 311.11 4299.84 4.59 -5.26 6.98 2.00 2.00 0.00 0.00 4400.00 6.00 311.11 4399.45 10.32 -11.82 15.69 2.00 2.00 0.00 0.00 4500.00 8.00 311.11 4498.70 18.33 -21.00 27.88 2.00 2.00 0.00 0.00 4600.00 10.00 311.11 4597.47 28.62 -32.79 43.52 2.00 2.00 0.00 0.00 4700.00 12.00 311.11 4695.62 41.16 -47.17 62.60 2.00 2.00 0.00 0.00 4800.00 14.00 311.11 4793.06 55.96 -64.11 85.10 2.00 2.00 0.00 0.00 4900.00 16.00 311.11 4889.64 72.97 -83.61 110.98 2.00 2.00 0.00 0.00 5000.00 18.00 311.11 4985.27 92.20 -105.64 140.21 2.00 2.00 0.00 0.00 5100.00 20.00 311.11 5079.82 113.60 -130.16 172.77 2.00 2.00 0.00 0.00 5125.70 20.51 311.11 5103.93 119.46 -136.87 181.67 2.00 2.00 0.00 0.00 Section 3 : Start Hold 5200.00 20.51 311.11 5173.51 136.58 -156.49 207.70 0.00 0.00 0.00 180.00 5300.00 20.51 311.11 5267.17 159.62 -182.89 242.75 0.00 0.00 0.00 180.00 5400.00 20.51 311.11 5360.83 182.66 -209.29 277.79 0.00 0.00 0.00 180.00 5421.08 20.51 311.11 5380.57 187.52 -214.85 285.18 0.00 0.00 0.00 180.00 Section 4 : Start Drop -2.00 5500.00 18.94 311.11 5454.86 205.03 -234.92 311.81 2.00 -2.00 0.00 180.00 5600.00 16.94 311.11 5550.00 225.28 -258.12 342.61 2.00 -2.00 0.00 180.00 5700.00 14.94 311.11 5646.15 243.34 -278.81 370.06 2.00 -2.00 0.00 180.00 5800.00 12.94 311.11 5743.20 259.17 -296.95 394.14 2.00 -2.00 0.00 180.00 5900.00 10.94 311.11 5841.03 272.77 -312.53 414.82 2.00 -2.00 0.00 180.00 6000.00 8.94 311.11 5939.53 284.11 -325.53 432.08 2.00 -2.00 0.00 180.00 · Unocal Oil & Gas tit ""Ianning Report - Geographic 6100.00 6.94 311.11 6038.57 293.19 -335.93 445.88 2.00 -2.00 0.00 180.00 6200.00 4.94 311.11 6138.03 299.99 -343.72 456.22 2.00 -2.00 0.00 180.00 6300.00 2.94 311.11 6237.78 304.50 -348.89 463.08 2.00 -2.00 0.00 180.00 6400.00 0.94 311.11 6337.72 306.73 -351.44 466.46 2.00 -2.00 0.00 180.00 6446.78 0.00 0.00 6384.50 306.98 -351.72 466.84 2.00 -2.00 0.00 180.00 Section 5 : Start Hold 6500.00 0.00 0.00 6437.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 6600.00 0.00 0.00 6537.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 6700.00 0.00 0.00 6637.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 6800.00 0.00 0.00 6737.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 6900.00 0.00 0.00 6837.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7000.00 0.00 0.00 6937.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7100.00 0.00 0.00 7037.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7200.00 0.00 0.00 7137.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7300.00 0.00 0.00 7237.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7400.00 0.00 0.00 7337.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7500.00 0.00 0.00 7437.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7600.00 0.00 0.00 7537.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7700.00 0.00 0.00 7637.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7800.00 0.00 0.00 7737.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 7900.00 0.00 0.00 7837.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8000.00 0.00 0.00 7937.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8100.00 0.00 0.00 8037.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8200.00 0.00 0.00 8137.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8300.00 0.00 0.00 8237.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8400.00 0.00 0.00 8337.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8500.00 0.00 0.00 8437.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8600.00 0.00 0.00 8537.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8700.00 0.00 0.00 8637.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8800.00 0.00 0.00 8737.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 8900.00 0.00 0.00 8837.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9000.00 0.00 0.00 8937.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9100.00 0.00 0.00 9037.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9200.00 0.00 0.00 9137.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9300.00 0.00 0.00 9237.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9400.00 0.00 0.00 9337.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9500.00 0.00 0.00 9437.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9600.00 0.00 0.00 9537.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9700.00 0.00 0.00 9637.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9800.00 0.00 0.00 9737.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 9900.00 0.00 0.00 9837.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10000.00 0.00 0.00 9937.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10100.00 0.00 0.00 10037.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10200.00 0.00 0.00 10137.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10300.00 0.00 0.00 10237.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10400.00 0.00 0.00 10337.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10500.00 0.00 0.00 10437.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10600.00 0.00 0.00 10537.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10700.00 0.00 0.00 10637.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10800.00 0.00 0.00 10737.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 10900.00 0.00 0.00 10837.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 11000.00 0.00 0.00 10937.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 11100.00 0.00 0.00 11037.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 11200.00 0.00 0.00 11137.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 11300.00 0.00 0.00 11237.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 11400.00 0.00 0.00 11337.72 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 11446.78 0.00 0.00 11384.50 306.98 -351.72 466.84 0.00 0.00 0.00 0.00 · Unocal Oil & Gas e ~lanning Report - Geographic 0.00 0.00 0.00 0.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 100.00 0.00 0.00 100.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 200.00 0.00 0.00 200.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 300.00 0.00 0.00 300.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 400.00 0.00 0.00 400.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 500.00 0.00 0.00 500.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 600.00 0.00 0.00 600.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 700.00 0.00 0.00 700.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 800.00 0.00 0.00 800.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 900.00 0.00 0.00 900.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1000.00 0.00 0.00 1000.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1100.00 0.00 0.00 1100.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1200.00 0.00 0.00 1200.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1300.00 0.00 0.00 1300.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1400.00 0.00 0.00 1400.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1500.00 0.00 0.00 1500.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1600.00 0.00 0.00 1600.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1700.00 0.00 0.00 1700.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1800.00 0.00 0.00 1800.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 1900.00 0.00 0.00 1900.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2000.00 0.00 0.00 2000.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2100.00 0.00 0.00 2100.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2200.00 0.00 0.00 2200.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2300.00 0.00 0.00 2300.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2400.00 0.00 0.00 2400.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2500.00 0.00 0.00 2500.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2600.00 0.00 0.00 2600.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2700.00 0.00 0.00 2700.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2800.00 0.00 0.00 2800.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 2900.00 0.00 0.00 2900.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3000.00 0.00 0.00 3000.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3100.00 0.00 0.00 3100.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3200.00 0.00 0.00 3200.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3300.00 0.00 0.00 3300.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3400.00 0.00 0.00 3400.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3500.00 0.00 0.00 3500.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3600.00 0.00 0.00 3600.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3700.00 0.00 0.00 3700.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3800.00 0.00 0.00 3800.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 3900.00 0.00 0.00 3900.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 4000.00 0.00 0.00 4000.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 4100.00 0.00 0.00 4100.00 0.00 0.00 2189799.21 228034.74 59 59 9.005 N 151 29 6.416 W 4200.00 2.00 311.11 4199.98 1.15 -1.31 2189800.39 228033.45 59 59 9.016 N 151 29 6.442 W 4300.00 4.00 311.11 4299.84 4.59 -5.26 2189803.92 228029.59 59 59 9.050 N 151 29 6.520 W 4400.00 6.00 311.11 4399.45 10.32 -11.82 2189809.79 228023.15 59 59 9.106 N 151 29 6.649 W 4500.00 8.00 311.11 4498.70 18.33 -21.00 2189818.01 228014.15 59 59 9.185 N 151 29 6.829 W 4600.00 10.00 311.11 4597.47 28.62 -32.79 2189828.56 228002.60 59 59 9.287 N 151 29 7.061 W 4700.00 12.00 311.11 4695.62 41.16 -47.17 2189841.42 227988.51 59 59 9.410 N 151 29 7.343 W 4800.00 14.00 311.11 4793.06 55.96 -64.11 2189856.59 227971.90 59 59 9.556 N 151 29 7.677 W 4900.00 16.00 311.11 4889.64 72.97 -83.61 2189874.04 227952.79 59 59 9.723 N 151 29 8.060 W 5000.00 18.00 311.11 4985.27 92.20 -105.64 2189893.76 227931.20 59 59 9.913 N 151 29 8.493 W 5100.00 20.00 311.11 5079.82 113.60 -130.16 2189915.71 227907.16 59 59 10.124 N 151 29 8.975 W 5125.70 20.51 311.11 5103.93 119.46 -136.87 2189921.71 227900.59 59 59 10.181 N 151 29 9.107 W · Unocal Oil & Gas _ ~lanning Report - Geographic 5200.00 20.51 311.11 5173.51 136.58 -156.49 2189939.26 227881.36 59 59 10.350 N 151 29 9.492 W 5300.00 20.51 311.11 5267.17 159.62 -182.89 2189962.89 227855.48 59 59 10.577 N 151 29 10.011 W 5400.00 20.51 311.11 5360.83 182.66 -209.29 2189986.52 227829.61 59 59 10.804 N 151 29 10.530 W 5421.08 20.51 311.11 5380.57 187.52 -214.85 2189991.50 227824.15 59 59 10.851 N 151 29 10.639 W 5500.00 18.94 311.11 5454.86 205.03 -234.92 2190009.46 227804.48 59 59 11.024 N 151 29 11.034 W 5600.00 16.94 311.11 5550.00 225.28 -258.12 2190030.23 227781.74 59 59 11.223 N 151 29 11.490 W 5700.00 14.94 311.11 5646.15 243.34 -278.81 2190048.74 227761.47 59 59 11.401 N 151 29 11.897 W 5800.00 12.94 311.11 5743.20 259.17 -296.95 2190064.98 227743.69 59 59 11.557 N 151 29 12.253 W 5900.00 10.94 311.11 5841.03 272.77 -312.53 2190078.92 227728.42 59 59 11.691 N 151 29 12.559 W 6000.00 8.94 311.11 5939.53 284.11 -325.53 2190090.56 227715.67 59 59 11.803 N 151 29 12.815 W 6100.00 6.94 311.11 6038.57 293.19 -335.93 2190099.86 227705.48 59 59 11.892 N 151 29 13.019 W 6200.00 4.94 311.11 6138.03 299.99 -343.72 2190106.84 227697.84 59 59 11.959 N 151 29 13.172 W 6300.00 2.94 311.11 6237.78 304.50 -348.89 2190111.47 227692.78 59 59 12.004 N 151 29 13.274 W 6400.00 0.94 311.11 6337.72 306.73 -351 .44 2190113.74 227690.28 59 59 12.025 N 151 29 13.324 W 6446.78 0.00 0.00 6384.50 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 6500.00 0.00 0.00 6437.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 6600.00 0.00 0.00 6537.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 6700.00 0.00 0.00 6637.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 6800.00 0.00 0.00 6737.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 6900.00 0.00 0.00 6837.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7000.00 0.00 0.00 6937.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7100.00 0.00 0.00 7037.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7200.00 0.00 0.00 7137.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7300.00 0.00 0.00 7237.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7400.00 0.00 0.00 7337.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7500.00 0.00 0.00 7437.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7600.00 0.00 0.00 7537.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7700.00 0.00 0.00 7637.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7800.00 0.00 0.00 7737.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 7900.00 0.00 0.00 7837.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8000.00 0.00 0.00 7937.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8100.00 0.00 0.00 8037.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8200.00 0.00 0.00 8137.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8300.00 0.00 0.00 8237.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8400.00 0.00 0.00 8337.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8500.00 0.00 0.00 8437.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8600.00 0.00 0.00 8537.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8700.00 0.00 0.00 8637.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8800.00 0.00 0.00 8737.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 8900.00 0.00 0.00 8837.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9000.00 0.00 0.00 8937.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9100.00 0.00 0.00 9037.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9200.00 0.00 0.00 9137.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9300.00 0.00 0.00 9237.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9400.00 0.00 0.00 9337.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9500.00 0.00 0.00 9437.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9600.00 0.00 0.00 9537.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9700.00 0.00 0.00 9637.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9800.00 0.00 0.00 9737.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 9900.00 0.00 0.00 9837.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10000.00 0.00 0.00 9937.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10100.00 0.00 0.00 10037.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W . Unocal Oil & Gas e lanning Report - Geographic 10200.00 0.00 0.00 10137.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10300.00 0.00 0.00 10237.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10400.00 0.00 0.00 10337.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10500.00 0.00 0.00 10437.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10600.00 0.00 0.00 10537.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10700.00 0.00 0.00 10637.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10800.00 0.00 0.00 10737.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 10900.00 0.00 0.00 10837.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 11000.00 0.00 0.00 10937.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 11100.00 0.00 0.00 11037.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 11200.00 0.00 0.00 11137.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 11300.00 0.00 0.00 11237.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 11400.00 0.00 0.00 11337.72 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W 11446.78 0.00 0.00 11384.50 306.98 -351.72 2190114.00 227690.00 59 59 12.028 N 151 29 13.330 W S. Kenai Gas project Happy Valley #4 7.... SHOE DESIGN SUMMARY & SKETCH 9-5/S" shoe 984 ft 13MI.. (1,000 ft TVD) S-1/2" Hole mdb/01decOO RT - MSL:: 16.5 ft WD :: 0 ft with 0.447 PSIIFT Gradient MW =: 9.3 PPG Pform =: 9.3 PPG EMW KT = 14.5 8BLS at 0 PPG FG =: 0.8 PSI/FT Gas Gradient =: 0.02 PSI/FT Drill Pipe =: 4 INCH 9-5/S" shoe The shallowest 7.... shoe depth = 3,964 ft ND \ I \ I \ I The deepest 8-112 in hole \ that can be drilled = I 4,035 ft 13MI.. or 4,051 ft TVD \ I \ 6-1/8" Hole I \ / \ / , / \ TD = 11,361 ft 13MI.. or 11,383 ft ND I 1 MW = 10 PPG Pform =: 10.5 PPG EMW KT =: 10 BBLS at 0.5 PPG FG =: 0.72 PSI/FT Gas Gradient = 0.05 PSI/FT Drill Pipe =: 4 INCH 600 500 6/19/2003 NIENHAUS Happy valley 400 Onshore Happy valley # 1 ! ~ 300 m 9.625 IN e .. 53.5 L8S P-110 200 7,950 PSI 3,450 PSI 2,500 PSI iDO 1,037 FT 1,037 FT 0.50 1.00 1.50 2.00 250 3.00 1,048 FT Votumf)o (BBL$) 1,048 FT Oil-8ase 9.10 PPG Pressure vs Time 0.25 88LS 0.25 8PM 600 403 PSI LOT 500 400 0, ! 16.57 PPG ~ 3QO 1! .. 200 100 LOT HV#1 9.625 SHOE.xls 5.0 10.0 15.0 Tim& (Minute$) 20.0 25.0 30.0 12/18/20033:50 PM 2000 Pressure 1800 1600 6/19/2003 NIENHAUS 140Q Happy valley Onshore 1200 Happy valley # 1 ! ~ 1000 7.000 IN ~ .. 800 29.0 LBS 1-80/p-110 800 8,160 PSI 6,500 PSI 400 4,000 PSI 200 4,023 0.50 1.00 1-:50 2,00 4,334 2.50 3<00 Volume (BSLs} 4,024 Oil-Base 9.45 PPG Pressure V$ Time 0.25 BElLS 0.25 BPM 2000 1,660 PSI LOT 1800 HWO 1400 1200 ! ~ 1000 ~ .. 800 600 400 200 5.0 10,0 15.0 20.0 25,0 30.0 Tìme {Minut~s) LOT HV#1 7 inch SHOE.xls 12/18/20033:50 PM UNOCAL Drilling Worldwide e SOP: Formation Integrity Test s!eak-Off Test Procedure Revised: 09/04/03 by Drilling Superintendent Network ATTACHMENT II LEAK-OFF TEST (LOT) PROCEDURE 1. Prior to drilling out the shoe track, a casing test will be performed at a constant rate. Plot drill pipe pressure and casing pressure versus barrels pumped using the latest Unocal FIT/LOT program. Note: It is recommended to do this test at the same rate at which the LOT will be performed, if practical. This test can be useful as a baseline for the LOT to determine the volume required. 2. Drill out shoe track, clean out rat hole, and make 10' of new hole. 3. Circulate bottoms up and note bottoms up formation. 4. Have a consistent mud weight in the drill string, annulus, choke line and kill line. 5. Pull bit inside casing shoe. 6. Install gauges, preferably calibrated, on standpipe and choke manifold. Note: Pressure rating on the gauges should be of an acceptable range for the anticipated pressure required. Recorders should be used if available. 7. Rig up and pressure test lines to a low and high pressure. 8. Shut-in BOP on drill pipe. 9. Break circulation through choke manifold. Close choke. 10. Pump mud down the drill pipe at constant rate (Y<i - 1 bpm). 11. Record the drill pipe pressure and annulus pressure at a constant volume increment as established above. Note: Also record the subsea stack gauge(s) pressure(s), if applicable 12. Stop pumping after having gathered 4 data points at injection pressure. See example of injection pressure in Attachment IV 13. Record the 10 second shut-in pressures, and pressures every one minute for three minutes. Page 5 of 12 UNOCAL Drilling Worldwide e SOP: Formation Integrity Test &~ak-Off Test Procedure Revised: 09/04/03 by Drilling Superintendent Network 14. Bleed off annulus pressure, record the volume bled back, and open BOP. Note: Only bleed pressure off on the annulus side, especially if using motors and LWD tools. 15. Plot drill pipe pressure and casing pressure versus barrels pumped using the latest Unocal FIT/LOT program. The pressure to be used for calculating the LOT is the 10 second shut-in pressure on the casing gauge. Note: Also record the subsea stack gauge pressures, if applicable. 16. Report LOT results as per the reporting section in the SOP. NOTE: Deviations from this LOT procedure will be subject to Management of Change documentation. Page 6 of 12 Assumptions: e e Cement Volume Calculation Happy Valley Well #4 Kenai Peninsula, Alaska 1. The 9 5/8" surface casing must be cemented to surface, to provide maximum; (a.) structural stability, (b.) long term well control security, and (c.) protection of fresh water sands. Based on experience with HV #1 & #2, the volume calculation below assumes 50% excess slurry will be required ensure cement returns to surface. 2. The 7" intermediate casing cement volume will be based on a cement top at +/-1600' MD, which is designed to be approximately 563' below the planned 9 5/8" shoe. Based on experience, the calculation below assumes 30% excess cement is required. 3. Assuming a gas discovery is made, the 31/2" primary cement volume will be calculated based on a cement top approximately 500 to 1000' above the highest commercial gas sand, or at the 7" shoe, whichever is lower. The following calculation assumes a cement top at 4100' MD, with 20% excess volume. However, the actual cement volume will be determined based on an analysis of the open hole logs. 9 5/8" Surface Casing: Open hole volume = Conductor Volume = Shoe Track Volume = Total slurry volume = Lead Slurry Volume = 11.43 + (((12.25)^2-(9.625)^2)*3.1417/4/144/5.61 *637*1.5) = Tail Slurry Volume = 3.04 + (((12.25)^2-(9.625)^2)*3.1417/4/144/5.61*300*1.5) = Lead Slurry: Class 'H' w/3% gel at 12.8 ppg yield: 1.97 Tail Slurry: Class 'H' at 15.8 ppg yield: 1.16 Lead sacks = 184 ,/ sx Tail sacks = 7" Intermediate Casing: 78.47 11.43 3.04 92.94 64.77 28.16 ft3/sk ft3/sk 136 /' sx ((12.25)^2-(9.625)^2)*3.1417/4/144/5.61*937*1.5 = ((14.5)^2-(9.625)^2)*3.1417/4/144/5.61*100 = ((8.835)^2)*3.1417/4/144/5.61*40 = bbls bbls bbls bbls bbls bbls Open hole volume = Shoe Track Volume = Total slurry volume = Lead Slurry Volume = ((8.5)^2-(7)^2)*3.1417/4/144/5.61 *2000*1.3 = Tail Slurry Volume = 1.53 + (((8.5)^2-(7)^2)*3.1417/4/144/5.61 *500*1.3) = Lead Slurry: Class 'H' wi 3% gel at 12.8 ppg yield: 1.98 Tail Slurry: Class 'H' at 15.8 ppg yield: 1.17 Lead sacks = 167 / sx Tail sacks = 3 1/2" Production Casing: 73.47 1.53 75.00 58.77 16.23 ft3/sk ft3/sk 78 ./ sx ((8.5)^2-(7)^2)*3.1417/4/144/5.61 *2500*1.3 = ((6.276)^2)*3.1417/4/144/5.61 *40 = bbls bbls bbls bbls bbls Note: Actual cement volume will be based on TOC +1-500' above the shallowest hydrocarbon bearing sand. The following volume calculation is based on TOC at the 7" shoe. Open hole volume = Shoe Track Volume = ((6.125)^2-(3.5)^2)*3.1417/4/144/5.61 *(11447-4100)*1.2 = ((2.992)^2)*3.1417/4/144/5.61 *30 = 216.57 0.26 bbls bbls e e Total slurry volume = Tail Slurry: LiteCrete mixed at 12.0 ppg yield: 2.29 Total sacks = 216.83 bbls ft3/sk 531 /' sx Contingencies: 1. Emergency slips for 3 1/2" tubing and 7" intermediate casing will be on location in case either string sticks with the hanger not landed, i.e. while reciprocating or while running in the hole. 2. If returns are lost during the 9 5/8" surface casing cement job, or if cement is not circulated to surface, it will be necessary to perform a top up job inside the 9 5/8" x 13 3/8" annulus. This would be necessary to obtain a competent pressure seal below the 13 3/8" starter head and to ensure mechanical stability at surface (i.e. for future HWOU operations, etc.). 3. No contingency is required in the event returns are lost during the 7" intermediate casing cement job, provided an adequate shoe exists to drill ahead. If the 7" shoe leak-off test yields unacceptable results, and if this is determined to be due to lost returns while cementing, the 7" shoe can be squeezed and re-tested. 4. Lost returns during the 3 1/2" primary cement job potentially could lead to a loss of reserves, but will not result in a safety problem due to the depth of the 7" shoe and the presence of the 3 1/2" x 7" packer positioned approximately 100' above the 7" shoe. Should it become necessary, coil tubing could be utilized to block squeeze any potentially productive intervals not covered by the primary cement. Note: Should the 31/2" x 7" annulus fail to pressure test, after the cement has had time to setup, it is * proposed that the situation should be discussed with the AOGCC and a mutually agreeable course of action woould be determined prior to perforating for production or for testing. The proposed minimum test pressure would be 500 psi above the 7" shoe leak-off test pressure, adjusted for differences in fluid density. 22'6" or 270" .... 16" Cut 72' below grade 11"SMMBS / Wellhead ~ 9 5/8" Hanger Starter Head Top Up Ports ----~---------------------------- 16" x 0.5" 60 ksi _ Conductor (driven) 2" thick base olste 12" 8'0" Note: Top of lower Master Valve (or temporary cap) must be <2' AGl to skid derrick. 17' or 204" 75" 2' Skid Base 1 (' M....' 38" 8' or 96" 25" 24' 12" To Shaker 3" Panic To G3sbuster . I I Automatic Choke Inlet 3" 5,000 I Choke M:mifold Kuukpik Drilling 5 e e Happy Valley Cuttings Disposal Description for Permit to Drill The drilling muds and cuttings ÍÌom the Happy Valley #3,4,5, and 6 Well will be ground and injected into the NNA #1 annulus, into the perforations in the tubing in accordance with an AOGCC approved test plan for the perforations in the tubing, or into the tubing and perforations of the NNA #1 Well should that well achieve permitted Class II injection status during the Happy Valley drilling operations. Permission for the annular disposal has already been secured from the Alaska Oil and Gas Conservation Commission (AOGCC) and is being currently sought for the tubing-related disposal options. The cuttings will be transported to the NNA #1 pad with the grinding to occur at the NNA #1 pad. Unocal Alaska does not intend at this time to request authorization under 20 AAC 25.080 for an annular disposal operation in the Happy Valley #3,4,5, or 6 well. In the event that a problem develops such that Unoca1 is unable to inject drilling waste into the NNA #1 well the possibility exists that Unocal may then request authorization for annular disposal into one or more of the other Happy Valley Wells. Deep Unit Salinity Calculations lent Datum: ,asvred From: Measured From: ARRAYINDUCnON,NEUTRON DENSITY, GAMMA RAY *** PLATFORM EXPRESS*** FWL 510' FSL 272' 90s 9 @ 87.611 º KELLY BUSHING KELLY BUSHING Section 11 @ Township 2S EIev.: 16.6ft EIev.: @ KB. 651.611 G.L 63511 O.F. 651.811 835ft above Penn. Datum @ Range 13W --.- -. .-tA t ! I' Ii I ! ¡ r 1"1 I' i1.~ I . . II! rr ..II. \ I. I I . j, r ......~IA.~ A 1/11 1/1, Il.l i- \ ',.., II \1 . ~v I . "'J ~ u V , - - V 5. 1. ~",!~~f' ^.! I I - 3d.. :< ~ I ~' A I ,'" ,1 ~j '" I~: I ~ ,.1\ 1'\ f ¡ t ,I ~ ,\ I ~~III_". F lilt :... ~ ~ ,~ \ ~ I II I I I i II I 1 Œ. II ª' ª ' ~ ~ . I . . I \/ II' ,.) ., - ."" - ~ IJ '\... ," I ~ 'V- oN ! J ..J '- I A. 10 ' . " 'v ,AI r'\ !'\tI '.II " J\ JI ~ IA r\ .J V U" .. " IlIA II \ '\" Allil ~ '\] . )lA ,^" ¡I' I .';"(1] .fo! l,rl ' , V i~ i'" I' ~ J \ \1\.. - .- ., - .....'0/, -,...' .~ " - -'- - - "-. -- -., ,... ~ .,' ~ "" ! ,- " I '/ \ , ) r-, I ~ . '..r- ( e ..- -t ~. :¡ . ~ ,~, . i1 lf - or ~ I- ../ ;-- :> \ i ..s > ( c , I ~ f If Ii "'- I '" I i?' :; \.' 't-, .;:: j J . L/ I <: "l, ''-, -;;:::: -==~ J ""!: '.=, -- ~ ,. t... ':';:;- L .;:> " ~ ( I, P" ( ,-2 ;;'; I <.... .... ( "" I I ? I I \ '~ ( I I I '" i <: 1 ~ i \ , 1<:: ¡.;",.~ ~, ,~~ ~ 'í <.. ( ~ '.;;; ~ 1 ~ c:: o;:.! t ~ I ) R "" i!.. ? ~ 1 } I , : ~ CTI ""-.. - :-::~ I., ,. '.&: ~~m -~ - - : :;- 700 -~þ f--'-;t :1= ~=;: I\~ - -r---I_ !-- -- ~- '- ~ 900 ,- <~ ~t'.. ;; ....t--.. ;; 000 .: :_~ c -', 0"'.. . ~' ~~ 100 of, ~ '~ ~ r- IlL IL "r.I- I ! .¿, 1.:- -< .. r1!"'" - ,;> ) ""'"!ì 200 - A ~ '~ s ~ ;r. -:,::: ;.' h.F1' ~~ i", ..--" - ~.. .... :-: ...- .- .... -~ ~ 1_- 1': :;'1. or· ¿ - _o".~ iji~ ~ 17 ~ - .. ;). ..-, . ""- -- ~ .. -þ: .. - --- ~-- ~ I .. ~ J.,., I~ j ~" _ "rv, "'I;: ....- 7 ... ... ¡..:: ... - ...... " .;; : : :Þ- : - : .. : ~ ..... ~I!!;¡- '-_ -;.:;: If" ..- ..-;; I( :oöt".:.. .....~ ., .. 0.:- , ~~.. :;;- - - .:".::. e ] A..-,¡, ~. A ",.Ie. MI1ttII ... """,.,1, 1M" ~ '", -:- 8,..¡,.,,. "".r : l ~ : - : - .- ~ - /1.. ~ .'- Ie '- : , A'" ... ...r' .¡'-. ~ . - : ~ /' ., N:: ., L-- - ~=:= Operator: Unocal Oil & Gas Tracker Well Name : Happy Valley #4 Well Location: Ninilchik, Kenai Peninsula Comments: @1996,2000M--ILLC.-AIIRighlsReserved Depth Casing Mud Weight Mud Program Mud Cost Daily Mud Cost Days Daily Footage Depth ft Program Ib/gal $ x 1000 $/day fUday fI 16"Plan 6 10 12 Plan 0 100 200 0 10000 2??oo 0 10 20 0 1000 2000 ~ §§ .....,....... 9-5/8" \ I ---1QQQ ..,.1QQ!! 1037 1 ~ --. ~ dººº . I 4000 7" \ ...,..1QQQ 4100 .., \ -- oil base l I 5000 DO ....J!QQQ \ ~ ~<.; I' 6000 1..6000 ] --= .,JQQQ 1\ 17000 \ . ~ ~ .,..!!Q.Qg \ 1 . \ I J.gQQQ ,....1QQQQ \ L .1.1!!QQ I 11000 \ ~ \ I 12000 3-1/2" - ~ ~ ~~ ~ . ~ .. ~ ~ 15000 15000 Casing Hole Size Size (in) (in) 13.625 Driven 9 5/8" 12.25" 7.0" 8.5" 31/2" 6 1/8" .... r:J Casing Program Depth 41 OC)' Unocal Oil & Gas Happy Valley #4 Ninilchik, Kenai Peninsula -Project Summary 1037' TVD Mud System (ft) (ft) 75' 75' 1037' Low Solids Non-Dis ersed 4100' LSND VERSADRIL 12,800' 11,400' Mud Weight (ppg) Sum Cumulative Days Mud Cost ($1,000) 8.9 9.0 9.2 9.5 10.2 $.00 $.00 5 $10,500.00· 9 $35,928.00 . 21 $120,425.00 * Total Well Cost = $ 120,425.00 * Engineering service included @ $625.00/Day -, ~- e· :·~:r; ,'IH~f1~ 'rr.'cus 'NERE ';U[Jf,IITTED e ,---H-VEN¡)ÕRNÕ~--I. ---DATE···· ----r------'5HËêK Nli-_H n___..'...____..____...._..._._-. ...___.....__.___._..__...~..,_.. ..____._...___.._______.__.__ , , '1031548 12-18-03 2007748 ." -..-.--""..----.......... _.,..-._..~.__.__..._-------_.. . .- -_.... ........ ..~._. .. --------.---,...---..--.---.---.----- .-- -.---.----.-...--- '.~c;~;.~.~·REq!T .~.tE~~~..NO__~____.you,Ç)i.lB_.~:~º..__ - __·_..~_..._____..__.____.__..n.._._.._.______ ;,;ET - - _ _____m__..' 12-18-03 PERNITHV4 10114085 100.00 100.00 RECEIVED I o Eic 1 9 20C13 . G Cons Commission Alaska 011 as . Anchorage --~T^L ~=.=-- 10'~~~~_=~H ~==~=-~~~=~=~=~= -=__==-~oo-~-~o_== _._~,_. FOHM 4-28181 (I1EV, 11-95) PRINTED IN U.SA DETACH STUB BEFOHE OEPO~;ITING CHECK CITIBANK DELAWARE A Subsidiary of Citicorp ONE PENN'S WAY NEW CASTLE, DE 19720 62-20 3iT Union Oil Company of California Accounts Payable Fie!d Disbursing 2007748 UNOCAL@ Pay One Hundred Dollars And 00 Cents********************************************************** Date Check Amount To tile order of STATE OF ALASKA ALASKA OIL & GAS CONSERVATION COMMISSION 333 WEST 7TH AVENUE SUITE 100 ANCHORAGE, AK 99501 United States III 200 ? ? ~8111 1:0 ~ ~ ~OO 2091: 18-DEC-03 ********100.00 Void a' er six months from aDl",e date. Jrf~ :1 9 ~ ~ 8 ~ :1 ? III . . TRANSMJT AL LETTER CHECKLIST CIRCLE APPROPRIATE LETTER/P ARAGRAPHS TO BE INCLUDED IN TRANSMITTAL LETTER WELL NAME PTD# CHECK WHAT ADD-ONS "CLUE" APPLIES (OPTIONS) MULTI Tbe permit is for a new wellbore segment of LATERAL existing well . Permit No, API No. . (If API number Productionsbould continue to be reported as last two (2) digits a function' of tbe original API number stated are between 60-69) above. P~OT HOLE In accordance witb 20 AAC 25.005(1), all (PH) records, data and logs acquired for the pilot bole must be dearly differentiated in botb name (name on permit plus PH) and API Dumber (50 - 70/80) from records, data and logs acquired for well (name on permit). SP ACING Tbe permit is approved subject ·to fuD EXCEPTION compliance witb 20 AAC 25.055. Approval to .~ perforate and produce is contingent upon issuance of a conservation order approving a spacing exception. (Company Name) assumes tbe liability of any protest to tbe spacing . exception tbat may occur. DRY DITCH All dry ditcb sample sets submitted to tbe SAMPLE Commission must be in no greatertban 30' sample intervals from below tbe permafrost or from where samples are first caugbt and 10' sample intervals tbrougb target zones. Rev: 07/]0/02 C\jody\templates Well Name: HAPPY VALLEY 4 Program EXP Well bore seg PTD#: 2032230 Company UNION OIL CO OF CALIFORNIA Initial ClasslType EXP 11-GAS GeoArea Unit On/Off Shore On Annular Disposal 1 P.ßrmit.fee attaçhe_d _ _ _ _ _ _ _ _ _ _ _ _ Ye$ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ _ _ _ . . . . . _ _ _ _ _ _ _ . _ _ _ _ _ 2 Leas.ßnumber .appropriate_ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ Ye$ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ 3 _U_nique well_n_a01.ß_and Ollmb_er _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Ye$ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 WeUJQcat.ßd in a d_efjnep pool _ . _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ No _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ . _ _ _ _ 5 WeJUQcat.ßd pr_oper _distance_ from driJling unitb_oundary_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ . _ Y.ß$ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6 WelUQcat.ßd proper _distance_ from other welJs_ _ _ _ _ . . . . _ _ _ _ _ _ . No_ _ _ _ _ _ _ _ Happy Yalley e)(p, WeU _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . 7S_utfiçientaçreage_ayailable [n_dJiUiog unit _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _No_ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ 8 Ifd.ßviated, js_ weJlbQre platjncJu_ded _ . _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Y.ß$ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ 9 Operator onl)' affeçted party _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ Y.ß$ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10 _Qperator has_appropr[ate_b.ond inJorce _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Y.ßs _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 11 P.ßrmit c.an be iS$lled wjthQut co_n$ervaJion order _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _No _ _ _ _ _ se_e .abov.ß, hejilring_ n9ticejl) we llfi I.ß _ _ _ _ _ _ _ _ . . . . _ _ _ _ _ _ _ _ _ _ _ _ _ 12 P.ßrmitc_an be iSSlled witbQut administratille_approvaJ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Y.ß$ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 12/19/2003 13 Can permit be approved before 15-day wait No 14 WelUQcated within area an.d_strataauthorized byJojectiol) Ord.ßr # (pullO# in_cOO101eot$UFor_ NA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ 15 AJI w.ßlJs_ witÞin Jl4Joile_area_of reyiew id.ßotified (FOr servjc.ßJ,'{eU onl)'L _ _ _ _ _ _ _ _ _ _ _ _ _ _ _NA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 16 Pre-produ~ed injector; puratio_n_of pre-propuction l.ßss than_ 3 months_ (For_service well onJy) _ _NA _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ . _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 17 ACM.PJ:jndjngof Consi$tency_ha$ bee_nJssuedJorJhi$ pr_ojeçt _ _ _ _ _ _ _ _ _ _ _NA _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Administration Appr RPC Appr WGA 18 19 20 21 22 23 24 25 26 27 Date 28 12/23/2003 29 30 31 32 33 34 Engineering Geology 35 36 Date 37 12/19/2003 38 39 Appr RPC Geologic Commissioner: DT5 Date Field & Pool _C_oodu.ctor st(ingpJovided _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Y.ß$ _ _ _ _ _ _ Set@ 80'.. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ . S_u[faC.ßcasingpJotects alLknown USQWs _ _ _ . _ _ _ . _ Y.ß$ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ _CMT vol adequateJo çirc_ulate_o_n_cond_uçtoO!! $urtC$g _ _ _ _ _ _ _ _ _ . _ _ _ _ Y.ßs _ _ _ ,ð.de~uate excess, _ _ _ _ . . . _ _ _CMT v_OI adequateJo tie-in Jong string to.surf csg_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _No _ _ _ _ _ _ _ _ _ _ . . . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . . _CMTwilJ coyer_aJl]<noWÐ_Pro_ductiye borizon_s_ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ Ye$ _ _ _ _ _ _ . _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ C_asiog de_signs ad_eQua_te for CoT, B& permafrO$t . . . . . . _ Y.ß$ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ . _Mequatetankageor re_serve pit _ _ . .. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Y.ßs _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ . _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ JtaJe-drilt hasa 10-403 for abandonment be.ßO approved _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ . _ _ _ NA _ _ _ _ _ _ _ New well, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . . _MequateweUbore separatio_n_proposed _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Y.ß$ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Itdiver:ter Jeq_uiJed, does itme.ßt reguJations_ _ _ _ _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ NA _ _ _ Requirement waille_d, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _DriUiog fluid_program $chematic& equip Ji$tadequate_ _ _ _ _ _ _ _ _ . _ Y.ßs _ _ _ _ Max MWJO._2_ppg. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ BOPEs, do they meet regulation _ ... _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Y.ß$ _ _ _ _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ . . . . . . _ _ _ _BOPE_press raJiog apPropriate; test to (put psig iÐcomments)_ _ _ _ _ . . . . _ Y.ß$ _ _ _ _ _ Test to A500_ psi. _MS~ 3838 psi. _C_hokemanjfold çQmpJies w/APIRP-53 (May 64L _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Y.ß$ _ _ _ _ _ _ _ _ _ _ _ WQrk will OCCUr withoutoperatjonshutdQWÐ_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Y.ß$ _ _ _ _ _ _ _ _ _ . . _ _ _ _ Is presence_ Qf H2S gas_ prob.able _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . No _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ MeçtJa_nicaLcol)dJt[onof well$ within ,ð.OR yerified (For_s_ervice w.ß1J onJy) _ . NA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - P.ßrmit C.an be iS$lled wlo_ hydrogen sulfide meaSJJres _ _ . _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ . . . . . Y.ß$ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _D_ata_PJesel)ted on potential oveJpres_sure _zones _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ NA _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _S.ßi$mic_analysJs_ of shallow gas_zol)es _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ NA _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ . . _ _ _ _ _ _ _ _ _ _ _ S.ßabedconditiol) $urvey(if off-sh_ore) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _NA _ . _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ Conta_ct namelphoneforweekly progressreport$ [exploratory only] _ _ _ _ _ _ . . . _ NA _ . _ . _ _ _ _ _ _ _ _ _ _ . _ _ . _ _ _ . . _ _ _ . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . . _ Engineering ¡7:¡"2. "))3 Comm..;ooe, Public 0:;:~ Commissioner r-- Date ~~ $:) Date D D . - e e Well History File APPENDIX Information of detailed nature that is not particularly germane to the Well Permitting Process but is part of the history file. To improve the readability of the Well History file and to simplify finding information, information of this nature is accumulated at the end of the fìle under APPENDIX. No special effort has been made to chronologically organize this category of information. PPY LLEY Section 22, Township S, Range 13W, SM Upper Cook Inlet, Alaska FINAL ELL T MARCH Lees Browne, - Sr. Logging Geologist O'Fal/on - Logging Geologist · · · UROeAL. Happy Valley #4 TABLE OF CONTENTS WELL RESU ME ........... ................ .... ............. ... ........ .............. ..................... ........................ ........... .........3 GENERAL PROCEDURES and GEOLOGICAL DISCUSSION .....................................5 LITH OlOGY REVI EW................................ "'........................ III.............................................................................................................................................. 9 SU RVEY IN FORMATION ....... ................... ........ .... .... ... ............. ............... .............. .......26 DAILY MUD PROPERTIES.......... ......... ........... ................. .......... ............ .......... ...... ...... ...... ...... 29 BIT RECORD ....................... .... ..................... ............... ... ............ ... ............. ... ............... ........... 30 MORN ING REPORTS.................... ...... ....... ... ......... ..... II ................................ .............. ... ........... 31 FI NAL LOGS.................................................................................................. .Appendix I [:I EPOCH 2 . . . UHOUL. Happy Valley #4 WELL RESUME Company: Unocal Alaska Resources, Inc. Well: Happy Valley # 4 Happy Valley Field: Region: Cook Inlet Location: Section 22, Township 2 S, Range 13W, SM Coordinates: 1277' FSL, 1294'FEL Elevation: RKB = 22.5' AGL RKB Elevation = 738.5' GL = 716' AMSL Kenai, Alaska County, State: API Index: 50-231-20017 Spud Date: 02/06/04 TO Date 3/20/04 Total Depth: 10620'MD' Contractor: Kuukpik Drilling Company Representative: Shane Hauck, Don Fowler, Doug Neihaus Rigffype: Kuukpik #5 / Land Epoch Logging Unit: #14 Epoch Personnel: Lees F. Browne Jr. Peter Dykema Brian Q'Fallon Company Geologist: Mark Lynch U EPOCH 3 · · · Casing Data: Hole size: Mud Type: Logged Interval: Electric Logging Co: Logs Run: Happy Valley #4 UNOCALe Happy Valley #4 16" landed at 71 ' 9 5/8" @ 978' 7" @ 4084' 12 Y4" to 983' 8 %" to 4084' 6 1/8" to 1 0620' Spud To 978' KCL WBM to 4084 Oil Based to 10620' Monitor Gas 71' to Surface Casing Full Logging under surface casing Reeves Wire Line 4084' to 10620' Array Induction-FE, Photo Density Caliper-Perf. Comp Neutron Comp Sonic, Gamma Ray [:I EPOCH 4 UNOCALIÞ Happy Valley #4 · GENERAL PROCEDURES and GEOLOGICAL DISCUSSION Tyonek Formation gas sands were the primary objectives of Happy Valley #4. Lower Beluga Formation sands were secondary objectives. Both formations are successive continuous units of the greater Tertiary Kenai Group. Epoch Well Services provided RIGWA TCH 2000™ Drilling Monitoring and DML TM Mudlogging Services. A QGMTM (Texaco patent) Quantitative Gas Measurement gas trap was positioned at the shale shakers for optimum agitation, mud gas was continuously extracted by vacuum pump, and the gas returns were detected, measured and analyzed by EPOCH Total Gas Analyzer and Gas Chromatograph using (FID) Hydrogen Flame Ionization method. The gas system was regularly cleaned, tested and calibrated. Cuttings samples were collected at regular 30' intervals as directed by Unocal's sampling program. 5' and 10' samples were collected in any potentially significant zone, and especially in all sand and gas shows below the T70 coal marker. HAPPY VALLEY #4 · Happy Valley #4 surface hole was drilled with no problems by a conventional drilling assembly to a depth of 983' on 217104 at 13:05 AM. Casing point was called early due to slow penetration rates after 916'. Penetration rate for the 8.5" hole was an average of 459' ftIhr and a general absence of gas, except for coal gas. No problems were encountered and 7" casing was run and set at 4084'. The rig was skidded over 7', Happy Valley #3 6%" hole drilled and then the rig was skidded back to Happy Valley #4 to drill its 6%" hole. The 6%" hole section of Happy Valley #4 commenced on 3/14/04, and penetration rates were 150 to 250 ftIhr through the Beluga. There were a number of minor gas shows. From 4270 to 4286' there was a minor gas show from medium to medium dark gray very poorly sorted sand that ranged from scattered coarse lower to very fine upper, was sub-rounded to rounded, consisted of mostly equidimensional grains with moderately well developed sphericity, and were composed of 50% quartz, 40% dark gray metalithic (argillite) rock fragments and 10% other lithics and mafic minerals. The consolidated sandstone displayed dominant moderate to abundant silt-packed matrix support, with minor grain support. Estimated porosity was poor. Before/during/after gas readings were 40/95/45 units, and before/during/after rate of penetration was 160/210/200 ftIhr. From 4365 to 4375' there was a minor gas show from medium gray fine upper to very fine lower generally equidimensional sand, subrounded to rounded with well developed sphericity, that was nearly all silt matrix supported and composed of dominant quartz and a lesser fraction of metamorphic rock fragments and mafic minerals. Estimated porosity was poor. Beforelduringlafter gas readings were 50/110/30 units, and before/during/after rate of penetration was 100/180/90 ftIhr. From 5235 to 5256' there was a minor gas show from very fine to fine sand/sandstone with ashy matrix support. Before/during/after gas readings were 45/150160 units. All penetration rates exceeded 200 ftIhr. · From 5740 to 5765' there was a gas show from medium light gray to medium gray very fine lower (and silt) to fine poorly sorted subangular sand/sandstone with very clayey matrix support plus minor grain- supported streaks or laminations, and composed of 60-80% quartz and 20-40% mostly black to dark brown clastic carbonaceous fragments plus trace light green chloritic grains. The sandstone was poorly consolidated with a soluble matrix and very poor to poor visible porosity. Occasionally the sandstone (and claystone) displayed "floating" medium to very coarse sand grains. Before/during/after gas readings were 55/315/70 units. All penetration rates in this interval exceeded 200 ftIhr. U EPOCH 5 · UNOCALe Happy Valley #4 The estimated Tyonek top was at 6140'. From 6415' to 6455' there was a minor gas show from very fine to fine sand/sandstone with silty clay matrix support. Before/during/after gas readings were 30/150/35 units. All penetration rates exceeded 200 ftIhr. Estimate porosity was very poor to poor. The T12 top was at 6695', with high gas to 6717' in a very pale orange very poorly to poorly sorted sand that ranged from medium lower to very fine lower (and gradational to silt), was sub-rounded to rounded, consisted of mostly equidimensionally-shaped grains with moderately well developed sphericity, and was composed of 90% quartz and 10% chert, metamorphics, various lithic fragments and mafic minerals. The consolidated sandstone was very dominantly matrix supported by abundant silt and ash, with very minor localized grain support. Estimated porosity was poor to possibly fair in part. The overall very pale orange color was due to the "orangish gray" matrix coating of the grains. Before/during/after gas readings were 55/191/40 units. All penetration rates in this interval exceeded 200 ftlhr. The T17 top was at 6632', and sand logged to 6717'. This upper T17 interval was a very pale orange very poorly to poorly sorted sand that ranged from medium lower to very fine lower (and gradational to silt), was sub-rounded to rounded, consisted of mostly equidimensionally-shaped grains with moderately well developed sphericity, and was composed of 90% quartz and 10% chert, metamorphics, various lithic fragments and mafic minerals. Consolidated sandstone was dominant matrix supported by abundant silt and ash, with very minor grain support. Estimated porosity was poor to marginally fair. The overall very pale orange color was due to the "orangish gray· matrix coating of the grains. Gas reading fluctuated from 32 to 67 units. All penetration rates in this interval exceeded 200 ftIhr. · The T25 top was at 7305', with high gas to 7345' in a very pale orange very poorly sorted sand that included localized conglomeratic sand and conglomerate. The sand dominantly ranged from coarse lower to very fine (with local gradations to larger clasts in granule range), was sub-rounded to rounded, displayed moderately well developed sphericity through all grain sizes, and was composed of 90% quartz and 10% dark gray metamorphics, greenstones, various other lithic fragments, chert and mafic minerals. There was moderate to abundant matrix volume of silt and ash when consolidated, and entirely matrix supported before a thin gradation to grain supported at its base. Note that the basal zone displayed an increase in silt and a decrease in ash. Estimated porosity was fair. The overall very pale orange color was due to the "orang ish gray· matrix coating of the grains. Before/during/after gas readings were 60/298/60 units. All penetration rates in this interval exceeded 200 ftIhr. There was no gas show or increase in rate of penetration at the top of the T40 sand. T70 top was noted by samples at 8686'. A 15' grayish black to black coal gave off 317 units of gas followed by a coal at 8747' which gave off 449 units. Visible bleeding gas was noted in both sample cuttings. · Ninilchik Sand? 9270 to 9300' was the best looking sand/conglomerate sand of the Happy Valley #4 well. The sand body is divided into three benches of penetration, marked by three different gas kicks. The rate of penetration on average through the whole zone started at 45 ftIhr increased to 155 ftIhr and back to 25 after the zone. In the first bench the gas increased from 19 units to 158 to 20. The second bench 8' later gas rose from 20 units to 109 to 27 units. The third bench two feet later saw the gas rise from 27 units to 157 to 23 units. Each decrease in gas was marked by slow penetration rates of 20 ftIhr. Samples consisted of sand and conglomerate sand with some conglomerate pebbles. Sample color was very pale orange (matrix coatings of grains) with clast size ranging from very coarse upper (some pebble, possible cobble?) to very fine grains and possible grading to silt. Grain size became coarser with depth to conglomerate sand at its base. Grains were sub round with moderate to well developed sphericity and equidimensional grains. Sorting was moderate at the top and became very poor at its base. A slight calcareousness was noted at the top. Matrix material was moderate with a ash and silt structured regime. This became more grain supported towards the base with increased ash content and less silt content. g EPOCH 6 · · · UNOCALIÞ Happy Valley #4 Samples were composed of 90% quartz and 10% chert, metamorphics and various lithic fragments. Porosity and permeability was fair at the top with a slight increasing in porosity towards the bottom, but had a lot of matrix infill giving a lower permeability. T130 top was noted at 9635' with a slowly increasing drilling break to 9667' The rate of penetration increased from 20 ftlhr to 155 ftlhr to 10 ftlhr. Gas units over this break increased from 25 units to 63 units to 23 units. Samples consisted of sandstone, sand and conglomerate sand with some conglomerate grains. The sandstone color was very light gray to medium light gray with clast size ranging from fine grains to very fine grains from 9585' to 9635' at the top of the T130 with most being matrix supported with slight grain support with poor to fair porosity to 9600'. Samples became coarser from 9635' to 9655' with angular to sub round grains being mostly fine to medium grains and some coarse to pebble. Mostly matrix supported with slight to moderate grain contacts. Sorting was poor to moderate with poor to fair porosity especially in cleaner fine to medium sands. Samples graded to a poorly sorted conglomerate at 9655' with 60-80% quartz and 20-40% black to gray to green to pink clasts including silicates (Chert, Feldspar and mafics) often altered to clay. Some coal fragments and other clasts. T140 top was noted at 9842' with ROP and gas to 9875'. The rate of penetration showed a five foot break at the top to 140 ftlhr giving off 85 units of gas and then a fair drilling break from 20 ftlhr to 115 ftlhr to 10 ftlhr. Gas units increased from 17 units to 95 units to 20 units over this second zone. Samples were sand and sandstone being very pale orange in color (matrix material coatings). Clast size ranged from coarse lower to fine lower, with sub round to rounded grains showing well developed sphericity with trace prolated grains but overall equidimensional size with no abundant grain size. Sands showed a moderate to abundant ash and silt structured matrix with both grain and matrix support. Sands were composed of 90% quartz, 10% chert, metamorphics and various lithic fragments. Porosity was poor to fair with the same for permeability. T1 SO top was noted at 10211' and the sand body extending to 10232'. The rate of penetration increased from 40 ftlhr to 158 to 12 ftlhr. Gas units increased from 16 units to 27 units to 14 units. Samples were sandstone being medium light gray with a slight olive hue (matrix coating). Clast size ranged from pebblelvery coarse to very fine upper. Abundant fraction was fine to coarse grains with overall coarsening with depth. Grains were sub angular to angular and moderate to poorly sorted. Matrix material was moderate with both grain and matrix support in a very ashy clay. Soft calcite was a part of the matrix. Sands consisted of 65% quartz, 35% gray, black, green, red, brown silicates and weathered silicates with some lithics. Samples show an estimated poor to fair porosity. T155 top was noted at 10380' with sand to 10420'. The rate of penetration was very ratty with drill rates starting a five ftlhr to 65 to ten with very fluctuating drill rates. Gas decreased throughout the zone from 30 units to 12 units and increasing to 25 units at the base. Samples consisted of sand, sandstone, conglomerate sand and conglomerate. A poor show throughout this zone. Happy Valley #4 reached a total depth of 10620' MD 110517' TVD between the T155 and the T160 with increases in tuffaceous silt and devitrified ash. g EPOCH 7 · · · UNOCALe Happy Valley #4 DAilY DRilliNG ACTIVITY ALL ACTMTIES ARE AT 4:00AM REPORT TIMES OF THE DA Y SPECIFIED. NOTE THAT HAPPY VALLEY #3, #4 AND #5 WERE BATCH DRILLED. 3/13/04: Skidded the rig from Happy Valley #3 to Happy Valley #4. Rig up Happy Valley #4 and begin to pressure test Blow Out Prevention Equipment. 3/14/04: Finish rigging up and drill out shoe and run leak off test. 3/15/04: Drill formation. 3/16/04: Drill formation 3/17/04: Drill formation 3/18/04: Drill Formation 3/19/04: Drill Formation 3/20/04: Drill Formation to 10620'. Circulate the hole clean and pull out of the hole. Rig up logging tools. 3/21/04: Run wire line tools into the hole. Tools stop at 8500'. Rig up to run logs on drill pipe. Run in the hole with drill pipe and circulate bottoms up (twice) at 10620'. Pull out ofthe hole slowly while logging. Finish logging and begin to pull out ofthe hole with drill pipe. 3/22/04: Finish pulling out of the hole with drill pipe and rig down Reeves Logging and rig up Schlumberger and wire line log the hole. 3/23/04: Complete wire line logs and rig up and begin running 3.5" tubing. 3/24/04: Finish running tubing and cement. Pressure test and nipple down and move to Happy Valley #5. U EPOCH 8 UNOCALe Happy Valley #4 . LITHOLOGY REVIEW Sand = very light gray; clast size range from coarse lower to fine upper; sub round to well rounded; moderate to well developed sphericity; moderate sorting; polished to pittedlimpacted texture; mature nature; non to very weak silica cement; moderate clay matrix pore filling and loosely attached; grain and matrix supported; composed of 70% quartz, 10% chert, 20% metamorphic, greenstone, feldspar and various lithic fragments; trace mica; poor porosity and permeability. Tuffaceous Claystone = very pale orange; very soft; brittle; very hydrophilic; lumpy to clumpy; clustered to clotted; gelatinous; amorphous fracture and habit most going into solution; occasional blebs of moderate clay; moderate to bright earthy luster; colloidal to clayey texture; thick to massive beds of homogeneous clay. Sand = very light gray; clast size range from medium upper to fine lower; sub round to sub angular; moderate sphericity; moderate occasionally well sorted; pitted to impacted texture; mature nature; non to very weak silica cement; occasional rare calcite cement; trace matrix; predominantly grain supported; composed of 80% quartz, 10% chert, 10% metamorphic, greenstone and various lithic fragments; fair porosity and permeability; no oil indicators. . Tuffaceous Claystone = very pale orange very soft; brittle; very hydrophilic; lumpy to clumpy; clustered to clotted gelatinous in parts; amorphous fracture and habit; moderate earthy luster; colloidal to clayey texture; scattered ground up coal in <10% of samples; small coals being ground up with fast ROP; massive beds of clay composed of 80% clay and 20% silt with various lithic fragments. Sand = very light gray to pinkish gray; clast size ranges from coarse lower to medium upper; sub round occasionally sub angular; moderate sphericity; moderate sorting; polished to pitted to impacted texture; mature texture; very weak silica cement; non calcareous; slight silt matrix; predominantly grain support; appears sub arenaceous; composed of 70% quartz, 10% chert, 20% metamorphic, greenstone, ground up coal and various lithic fragments; fair porosity and permeability; no oil indicators. Sand I Conglomeratic Sand (1300' -1390') = very light gray to medium gray with moderate to strong salt and pepper appearance due to abundant medium to dark gray argillite-phyllite; medium lower to very coarse upper, rare pebble, predominantly medium; sub angular to sub rounded, rare rounded; moderate to well sorted; good sphericity; predominantly loose clear to light gray quartz (60%- 80%) with chert, and varicolored lithic clasts including chlorite, reddish orange volcanic, calcite, argillite- phyllite and angular carbonaceous fragments; grain supported; matrix material almost entirely washed out - appears to be standard ashy clay; note almost total lack of volcanic glass shards normally present in these sediments; estimate fair porosity/permeability; no oil indicators. Coal (1390' -1410') = black; firm to brittle; irregular to sub blocky, minor conchoidal fracture, low rank sub bituminous; massive, wedge like cuttings; weak to no developed cleat; greasy luster; smooth to slightly granular. . Sand / Conglomeratic Sand (1400' - 1500') = medium light gray to medium dark gray with brownish gray secondary hue; faint salt and pepper appearance; bimodal grain sizing with very fine upper to fine lower (50%), and medium upper to coarse lower (50%), rare very coarse upper sub rounded grains; all are sub angular to sub rounded predominantly sub angular; well sorted within bimodal size ranges; mostly loose grains quartz (60%) with noted increase in chert (10%), continued abundant argillite-phyllite grains, constant traces of reddish orange volcanic clasts chlorite, mica; note relative abundance of coarse to very coarse clear quartz grains, also return of locally abundant clear very fine to silt sized volcanic glass g EPOCH 9 · · · UNOCALe Happy Valley #4 shards; predominantly grain supported; matrix is light to medium gray soluble hydrophilic ashy clay; estimate fair overall porosity/penneability; no oil indicators. Tuffaceous Claystone (1400' - 1665') = light gray to medium gray with light brownish gray secondary hue; lumpy and curdy when not totally hydrated and subsequently found as amorphous colloidal muck; crumbly to stiff; earthy irregular fracture; cuttings are amorphous, minor massive; dull earthy to waxy luster; smooth to gritty or matte texture; thick bedded with common sandstone and siltstone lenses or partings; soluble and highly colloidal on hydration, good cohesiveness; fair to good adhesiveness; locally common very fine grained angular black coaV carbonaceous fragments; locally common very fine to silty clear glass shards winnowed from volcanic ash flow; acts as matrix material for adjacent sandstone units. Sand I Conglomeratic Sand (1665' -1830') = medium gray to medium dark gray with brownish gray secondary hue; faint salt and pepper appearance; medium lower to very coarse upper, predominantly medium upper to coarse lower; angular to sub rounded; fair sorting; mostly loose clear to white to light gray quartz (60%), medium gray chert (10%), argillite-phyllite (20%), and assorted lithic clasts; many individual grains appear broken, or pitted, impacted; continued constant reddish orange volcanic clasts (up to 5%); estimate 5-10% lithified in sample; matrix is light to medium gray ashy clay mostly grain supported; scattered grains of light yellowish orange clay clasts; non to slightly calcareous; locally scattered clear glass shards. Tuffaceous Claystone (1700' - 1900') = medium gray to dark gray; predominantly samples of clay are dissolved colloidal, amorphous soup, with some curds of more solid clay material; sparse to locally common disseminated black very fine grained angular coal/carbonaceous fragments; also sparse to locally common very fine to silty clear glass very fine to silty clear glass shards winnowed from volcanic ash flow; beds are massive and somewhat thick, and include numerous ashy sandstone and minor siltstone lenses and partings; Tuffaceous Siltstone (1700' -1900') = medium gray to brownish gray; curdy when not amorphous as adjacent tuffaceous claystone unit; crumbly to stiff; irregular fracture; massive cuttings; dull luster; granular texture; thin bedded, occurring as partings; non to slightly calcareous; note minor dark yellowish orange to brownish gray; stiff; crunchy; irregular fracture massive cuttings; dull earthy luster; granular texture; highly calcareous; occurs as thin partings from 1880' to 1910'. Sand / Conglomeratic Sand (1905' - 2040') = medium gray to dark gray with moderate salt and pepper appearance due to abundant medium to dark gray metamorphic rip-ups (argillite-phyllite); very fine upper to medium lower, with scattered coarse upper grains; angular to sub rounded, predominantly sub angular; fair to well sorted; high sphericity; predominantly loose clear to light gray quartz (60%- 80%) with chert, and varicolored lithic clasts including chlorite, reddish orange volcanic, calcite, argillite- phyllite, muscovite, augite; estimate fair porosity/penneability; no oil indicators. Coal (2040' - 2110') = grayish black to black; low rank sub bituminous; stiff; finn friable to brittle; irregular, sub blocky somewhat hackly fracture; massive, wedge like cuttings; greasy luster; smooth to matte texture; 50% vitrain 50% fusain; no cleat development commonly grades to black carbonaceous claystone/shale; scattered traces out- gassing; occasional traces of dark yellowish orange amber (resinite). Tuffaceous Siltstone (2070' - 2200') = light brownish gray to brownish black with medium light gray to medium dark gray secondary hues; stiff; crumbly; irregular to sub blocky fracture; massive to tabular cuttings; earthy luster; granular texture; thin, lenticular beds within larger sandstone and claystone units; commonly carbonaceous with disseminated carbonaceous fragments, and thin stringers; slightly to moderately calcareous; rarely mod hard. Sand I Sandstone (2155' - 2330') = medium dark gray to dark gray with dark greenish gray secondary hue; very fine upper to medium lower, predominantly fine; angular to rounded to sub discoidal, mostly sub g EPOCH 10 . . . UNOCALe Happy Valley #4 rounded; moderate to well sorted; high sphericity; mostly loose grains above 2190', then increasingly lithified; 50-60% quartz, 10-15% medium to dark gray chert, 20% medium to dark gray argillite-phyllite, with minor lithic clasts including reddish orange volcanics and clear to white calcite, augite; common disseminated black angular carbonaceous fragments; locally common very fine to silt sized clear glass shards winnowed from volcanic ash flow, much of which is devitrified; mostly matrix supported by estimate fair porosity/penneability; no light to medium gray ashy clay, which is moderately soluble hydrophilic; estimate fair porosity/penneability; no oil indicators. Tuffaceous Claystone (2220' - 2400') = medium gray to dark gray with light brownish gray secondary hue; curdy when not dissolved; crumbly to stiff; irregular fracture, when fracture is possible; cuttings predominantly amorphous blebs; dull earthy luster; smooth to gritty texture; thick beds contain lenses and partings of "dirty" ashy sandstone, and tuffaceous siltstone; non to slightly calcareous; hydrophilic; good cohesiveness; fair to good cohesiveness; locally common disseminated coal fragments; usually silty andlor sandy. Coal (2355' - 2500') = grayish black to black with brownish black secondary hue; low rank sub bituminous; brittle; finn friable to moderately hard; irregular to blocky fracture, minor conchoidal; weak cleat; greasy luster; smooth to matte texture, minor woody; 60% vitrain 40% fusain; occasional scat out gassing, frequent after 2500'; occasional traces of dull yellow amber. U EPOCH 11 UNOCALe Happy Valley #4 . Sand I Sandstone (2330' - 2600') = medium dark gray to dark gray with olive gray secondary hue; very fine upper to medium upper, rare coarse lower; angular to rounded, mostly sub angular; bimodal sorting with very fine upper to fine lower, and medium lower to coarse lower, well sorted in finer range; fair sorting in coarser range; high sphericity; minor lithified; 70-80% quartz and chert, 10-15% phyllite also traces of biotite, chlorite, reddish orange volcanic, and locally common carbonaceous fragments; grain and matrix supported by medium gray ashy clay which is as previously described; non to slightly calcareous; estimate fair porosity/penneability; Tuffaceous Claystone (2400' - 2600') = light gray to medium gray with brownish gray and pale red secondary hues; stiff to slimy; pulverulent; irregular to sub blocky fracture; cuttings are amorphous with minor massive, and occasional PDC bit carved; dull, earthy luster; smooth to silty texture; massive, interbedded with and grading to tuffaceous siltstone and ashy sandstone; unit is finn friable to moderately hard; locally common very fine black carbonaceous fragments; non to slightly calcareous. Sandstone (2666' - 2760') = medium dark to grayish black with dark olive gray secondary hue; very fine lower to very fine upper, rare coarse lower; sub angular to sub rounded, mostly sub rounded; moderate to well sorted; high sphericity; predominantly quartz! chert with abundant medium to dark gray lithic igneous and metamorphic lithic clasts; mostly grain supported; matrix is medium to dark gray ashy clay, mod calcareous; finn friable to moderately hard; grayish black variety is carbonaceous, with scattered thin coal stringers; estimated fair porosityl penneability. . Tuffaceous Claystone (2600' - 2750') = medium dark gray to grayish black with brownish black secondary hue; with volcanic ash and tuffaceous siltstone, these lithologies plus spotty tuffaceous shale comprise a generalized tuffaceous mudstone that has prominent characteristics derived from volcanic ash origins, most notably the presence of spotty to abundant glass micro shards (and sometimes sand sized macro shards); in this interval there is considerable mixing of tuffaceous and carbonaceous material and continued gradation to very ashy clayey sandstone as the sand content increases. Coal (2780' - 2800') = grayish black to black; low rank sub bituminous; stiff; brittle; finn friable; irregular to blocky to splintery fracture; platy, wedge like cuttings; greasy luster; smooth texture; thin bedded; 60% vitrain 40% fusain; common out gassing. Tuffaceous Claystone = very soft to very brittle; lumpy to clumpy; clustered to clotted; very hydrophilic; gelatinous in parts; amorphous fracture and habit; dull earthy luster; colloidal to clayey texture; thick to thin beds of clay interbedded with thin beds to laminae of very carbonaceous shale and minor coals. Tuffaceous Clay = light gray; very soft to finn in parts; very brittle; lumpy to clumpy; clustered to clotted; mushy to pasty; tacky to slimy; stiff tabs of harder clays in matrix mush; various consistency throughout clays; a amorphous to sub planar fracture; sub tabular to amorphous habit; moderate earthy luster; clayey texture; interbedded very carbonaceous shale; composed of 80% clay, soupy silty 20% silt and various carbonaceous detrital material; visible pyroclastic relic shards in clay matrix. Tuffaceous Claystone = very light gray; very soft to brittle; finn and stiff in rare fonns; lumpy to clumpy; clustered to clotted; gelatinous; various consistency; amorphous occasionally sub planar fracture; amorphous to sub nodular to sub platy habit; moderate earthy luster clayey to colloidal texture; massive bed of hydrophilic clays and thin very carbonaceous shale; clays composed of 60% clay. 30% silt, 10 various detrital material; occasionally scattered graywacke type sands. CoaUCarbonaceous Shale = black to brownish black in shales; finn; resinous luster; smooth to matte texture; planar to sub conchoidal fracture; composed of lignite to very carbonaceous shale and clay. . Tuffaceous Clay = very light gray to pinkish gray; very soft; very hydrophilic with >50% clay going into the mud system; lumpy to clumpy; clotted to clustered; gelatinous; various consistency; amorphous U EPOCH 12 UNOCALe Happy Valley #4 . fracture and habit; moderate earthy luster; clayey to colloidal texture; massive beds of clay composed of 80% clay 20% silt and various detrital material. Tuffaceous Claystone = pinkish gray to very light gray; very soft to brittle; very hydrophilic with> 50% of clay going into the mud system; lumpy to clumpy; clotted to cfustered; gelatinous various consistency; amorphous fracture and amorphous habit; moderate earthy luster; clayey to colloidal texture; m massive beds of homogeneous clay; composed of 80% clay, 20% silt and various detrital material. Sand I Sandstone = salt and pepper to pinkish gray; clast size ranges from medium lower to very fine upper; sub round; moderate to well developed sphericity; moderate to poor sorting; polished texture; sub mature; no silica cement; abundant clay structured matrix material; matrix supported; composed of quartz with metamorphic lithic fragments; non to poor porosity and permeability; no oil shows. Very Carbonaceous Shale/Coal = grayish black to black; grayish brown to dusky brown and various hues of all; brittle to firm; resinous to earthy luster; matte to striated texture; hackly fracture; composed of very carbonaceous shale and clay and grading to lignite away from contacts; bleeding gas noted on coal fragments. Tuffaceous Claystone = very light gray to light gray; very soft to soft; slight firm in parts; stiff; predominantly lumpy to clumpy; clustered to clotted; more mushy to pasty with depth; amorphous to earthy fracture; amorphous to sub platy habit; moderate earthy luster; clayey to colloidal texture; massive beds of homogeneous clay; composed of 80% clay, 20% silt and minor detrital material; pyroclastic relic shards in clay matrix. . Coal/Carbonaceous Shale = black to grayish black; firm; resinous to earthy luster; smooth to matte texture; splintery to irregular fracture; elongate to tabular habit; composed of lignite to very carbonaceous shale at contacts; becoming silty in parts. Tuffaceous Claystone = very light gray to light gray; very soft to soft; predominantly lumpy to clumpy; clotted to clustered; some mushy to pasty; amorphous to earthy fracture; amorphous to sub nodular habit; moderate earthy luster; clayey to colloidal texture; massive beds of homogeneous clay; composed of 80% clay, 20% silt and minor amount of carbonaceous fragments; scattered medium grained sands. Tuffaceous Claystone = very light gray; very soft to soft; very hydrophilic; lumpy to clumpy; clotted to clustered; amorphous fracture and habit; moderate earthy luster; clayey to colloidal texture; massive beds of homogeneous clay composed of 90% clay 10% silt, carbonaceous material and pyroclastic relic shards. Tuffaceous Claystone = very light gray; very soft to soft; slightly firm in part becoming stiff; predominantly lumpy to clumpy; clustered to clotted; mushy to pasty; very hydrophilic with >50% clay being washed; amorphous to sub platy fracture; amorphous to sub platy habit; clayey to colloidal texture; massive beds of homogeneous clay; composed of 90% clay and 10% silt, carbonaceous material and pyroclastic relic shards in the clay matrix material. Tuffaceous Claystone = very light gray to light gray; very soft; brittle; very hydrophilic; lumpy to clumpy; clotted to clustered; mushy to pasty; tacky to slimy; slightly adhesive; amorphous to earthy fracture; amorphous to sub nodular habit; moderate earthy luster; clayey to colloidal texture; massive bed of homogeneous clay; most going into the drilling mud; composed of 90% clay 10% silt, very fine carbonaceous material with pyroclastic relic shards in the clay matrix. . Tuffaceous Claystone = very light gray; very soft; brittle; lumpy to clumpy; clustered to clotted; mushy to pasty; tacky to slimy; slightly cohesive to moderate adhesive; amorphous to earthy fracture; amorphous to sub nodular habit; moderate earthy luster; clayey to colloidal texture; massive beds of homogeneous clay; g EPOCH 13 UNOCAUÞ Happy Valley #4 . composed of 90% clay, 10% silt and very fine amounts of carbonaceous material; pyroclastic relic shards in clay matrix. Sand (3750') = medium light gray to salt pepper; clast size ranges from medium upper to fine upper; sub round occasionally round; moderate to well developed sphericity; moderate to well sorted; polished to impacted texture; sub mature; non to very slight silica cement; non calcareous; clay structured matrix; loosely attached matrix supported; composed of >40% metamorphic fragments: argillite, phyllite and various lithic fragments; poor porosity and permeability; no oil indicators. CoallCarbonaceous Shale and Clay = black to grayish black; mottled yellowish brown in carbonaceous shale; firm; resinous to earthy luster; matte to smooth texture some becoming gritty in carbonaceous clays; hackly fracture; composed of lignite grading to very carbonaceous shale and clay; slight bleeding gas from coal cuttings. Tuffaceous Claystone = very light gray; very soft to soft; brittle; lumpy to clumpy; clustered to clotted; gelatin mushy to pasty; tacky to slimy; various consistency; very hydrophilic; amorphous to earthy fracture; amorphous to sub nodular habit; gumbotil; moderate earthy luster; clayey to colloidal texture; massive beds of homogeneous clay composed of 80% clay, 20% silt and various detrital fragments; scattered very fine carbonaceous fragments and coal. Tuffaceous Claystone (3865' - 3950') = medium gray to medium dark gray; lumpy to stiff; sectile; irregular, sub blocky fracture; cuttings are globular to massive; dull luster, greasy when hydrated; smooth to silty texture; very hydrophilic; massive beds with lenses and partings of tuffaceous siltstone and very ashy sandstone; locally common fine to very fine grained coal/carbonaceous fragments; non to slightly calcareous; firm friable to moderately hard. . Sandstone/Conglomerate Sandstone (3920' - 4080') = medium gray to medium dark gray; very fine upper to trace pebble, mostly fine upper to medium lower; fair sorting; angular to sub rounded, predominantly sub angular; moderate sphericity; 70% quartz, chert chalcedony that is mostly medium gray, some light gray, scattered clear, with igneous and metamorphic lithic clasts which are predominantly medium to dark gray, including argillite-phyllite, augite, biotite and other mafics; both matrix and grain supported; matrix is medium light to medium dark gray, hydrophilic, soluble, ashy clay with locally common very fine clear glass shards; no mineral fluorescence. Carbonaceous shale and clay = (4130') black to brownish gray and all hues in between; soft to firm; earthy luster grading to sub resinous luster in mass; matte to clayey texture; irregular fracture with some along shale partings; abundant visible bleeding gas from carbonaceous shale fragments; overall very carbonaceous clay and shale with minor laminae to thin beds of lignite. Tuffaceous siltstone (4190') = medium gray; moderate induration; slightly sectile; crumbly oce crunchy in parts; slightly cohesive to no adhesive; earthy to granular fracture; sub blocky; to equant habit; dull earthy luster; silty to clayey texture; massive beds of gradational silt and clay becoming silty "with depth; composed of 70% silt, 30% clay with visible pyroclastic relic shards and interbedded very fine to fine grained sand grading to sand. Sand (4280') = medium gray to medium dark gray; clast size ranges from coarse lower to very fine upper; sub round to rounded; equidimensional; well developed sphericity; poor sorting with no abundant faction; polished to pitted texture; sub mature; non to very slight silic cement; moderate to abundant silt packed matrix; matrix support with minor grain support; composed of 50% quartz, 40% dark gray meta (argillite), 10% various lithic fragments; poor estimated porosity and permeability; no oil indicators with oil base mud. . Tuffaceous siltstone (4310') = medium gray; poor to slightly moderate induration; crumbly to crunchy; slightly sectile; mushy to pasty when rehyrated; slimy; slightly cohesive to slightly adhesive; sub blocky g EPOCH 14 UNOCALe Happy Valley #4 . fracture; sub nodular habit; dull earthy luster; clayey to silty texture; massive beds of gradational silts and clays; interbedded sands and grading to very fine to fine grained sands with depth. Sand (4370') = medium light gray; clast size ranges from fine upper to very fine upper; sub round to round; well developed sphericity; equidimensional; moderate to poor sorting with no abundant faction; polished to pitted texture; sub mature nature; non to very slight silic cement; non calcareous; moderate to abundant silt structured matrix; dominant matrix support; composed of predominantly quartz with secondary meta fragments; poor porosity and permeability; no oil indicators with oil base mud. Sand (4470') = medium light gray to light gray; clast size ranges from coarse upper to very fine upper; sub angular to pred sub round to rounded; moderate to well develop sphericity; very poor sorting with no abundant faction; polished fine grains to chipped coarse grains; immature to sub mature nature; non to very slight silic cement; moderate to abundant silt structured matrix; dominant matrix support; composed of 50% quartz, 40% meta (argillite),1 0% various lithic fragments; appears as a sub graywacke; poor estimated porosity and permeability; no oil indicators with oil base mud. Tuffaceous siltstone (4550') = medium dark gray to medium gray; moderate induration; stiff; moderate cohesiveness to non adhesive; irregular to pdc grooved fracture and habit; dull earthy luster; smooth to clayey texture; gradational to tuffaceous claystone; composed of 70% silt, 30% clay and various detrital material. . Tuffaceous siltstone = (4610') medium gray to medium light gray; moderate induration; crumbly to crunchy; slightly sectile in parts; stiff; moderate cohesive to non adhesive; pdc grooved to granular fracture and habit; moderate earthy luster; very silty to gritty texture; some grading to very fine grain sandstone in parts; composed of 70% silt, 20% clay, 10% various detrital material and very fine grain sand. Carbonaceous shale and coal (4675') = black to grayish black; firm; earthy to mottled resinous luster; striated to matte texture; sub planar fracture; some along carbonaceous shale partings; composed of very carbonaceous shale at contacts to lignitic coal at mass; visible bleeding gas from lignitic coal; rare disminated pyrite on coal. Tuffaceous claystone = medium gray; firm some becoming stiff in parts; moderate cohesiveness to non adhesive; pdc grooved fracture and habit; moderate earthy luster; very silty and gritty; Composed of 50% clay, 50% silt; very carbonaceous shale and clay beds scattered. Carbonaceous shale and clay = (4785') grayish black to black; firm; earthy to mottled resinous luster in coal laminae; matte texture; sub planar fracture along shale partings; composed of very carbonaceous shale and clay; thin beds of lignitic coal; visible bleeding gas from cuttings. Tuffaceous claystone = (4820') medium gray to light brownish gray; soft to firm; slightly sectile; stiff; moderate cohesive to non adhesive; pdc grooved to sub blocky fracture and habit; dull earthy luster; clayey to silty texture; massive beds of gradational silts and clay; some thin beds of lightly carbonaceous clay; some visible bleedings gas from cuttings. Sand (4850') = very light gray to light gray; clast size ranges from medium upper to fine upper; sub round to round; equidimesional with well developed sphericity; polished texture; sub mature nature; non to very slight silic cement; abundant silt structured matrix; dominant matrix support; sands hard to discem between matrix and sand; composed of pred quartz, with minor dark gray meta (argillite and phyillite) poor porosity and permeability; no oil indicators with oil base mud. . Coallcarbonaceous shale (4945') = black to grayish black some brownish black at contacts; firm; resinous to mottled earthy luster in carbonaceous shale; matte to striated texture; sub planar fracture U EPOCH 15 UNOCALe Happy Valley #4 . along shale partings; cuttings are very ground up with pdc bit; composed of very carbonaceous shale to lignitic coal; visible bleeding gas from coal partings. Tuffaceous siltstone (4985') = pale yellowish brown; poor to moderate induration; slightly cohesive to slight adhesiveness; dull earthy luster; silty texture; expansive silt with slight to moderate carbonaceous; visible bleeding gas from carbonaceous silt; sub nodular habit. Sandstone (5000') = very light gray to medium gray; very fine grained and clayey to silty laminated to thinly bedded in claystone, to very fine to medium grained with locally scattered coarse to very coarse; sub angular to sub rounded; poorly to moderately sorted; 70% quartz, and 30% mostly black to dark. gray and trace green grains including mostly silicates (dark. mafics) and some partially siliceous coal and carbonaceous fines; some silty to fine grained zone with flakes and fines of carbonaceous matter and traces chlorite; locally interbedded carbonaceous shale with thin streaks to possible thinly bedded coal. Tuffaceous claystone (5090') = medium light gray to occasionally light brownish gray; soft and soluble to occasionally slightly firm; clayey to siltylfine sandy texture; some laminations siltstone to fine sandstone; locally smooth ashy light gray clay grading ash fall tuff; often slight disseminated to micro lams and flakes of carbonaceous matter; locally with increasing carbonaceous partings in part grading brownish organic claystone and carbonaceous shale with interbedded coal; non calcareous. Coal (5180') = dusky brown to brownish black to grayish black; slightly firm and slightly malleable, to very firm and brittle; flaky to crumbly to some irregular hackly to angular fracture; often thinly micro lams of brownish organic clay or as residue on flakes; mostly lignite with streaks sub bituminous; thinly bedded to grading carbonaceous shale; some degassing on fracture planes. . Sandstone (5210') = light gray to medium light gray; very fine to fine and scattered medium to trace coarse grains; sub angular; poorly sorted and mostly matrix supported in very light gray ashy clay; non calcareous; grading to siltstone and claystone; 65% quartz and 35% mostly dark. gray to black to brownish black silicates and coal and carbonaceous matter; estimate very poor to poor clay infill porosity. Claystone (5270') = medium light gray to light gray; moderately firm to moderately soft; soluble decreasing with increase in silt and argillaceous matter; slight to moderate fine silty to some silty/gritty texture; very slight to occasionally moderate disseminated mostly carbonaceous and other dark. silts and fines; occasionally grading with laminations to possible thins beds of siltstone and very fine to fine sandstone; non calcareous; locally thin carbonaceous partings with streaks to thin beds coal. Siltstone/sandstone (5340') = medium light gray; moderately firm; moderately soluble; very clayey as mostly matrix supported and thinly interbedded to laminated in tuffaceous claystone; silt to very fine to fine grains including mostly quartz and some dark. gray to black to dark. brown carbonaceous lithics and silicates; non calcareous; very poor to poor visible clay infill porosity. Coal (5400') = brownish black to dusky brown to grayish black; slightly firm and slightly malleable, to very firm and brittle; flaky to crumbly to some irregular hackly fracture; often high clay content grading carbonaceous shale or clay as residue on flakes; low grade lignite to lignite to rare sub bituminous; slight disseminated micro pyrite; slight degassing on fractures. Siltstone/sandstone (5480') = medium light gray; moderately firm; moderately soluble; very clayey as mostly matrix supported and thinly interbedded to laminated in tuffaceous claystone; silt to very fine to fine grains including mostly quartz and some dark. gray to black to dark. brown carbonaceous lithics and silicates; non calcareous; very poor to poor visible clay infill porosity. . Sandstone/siltstone (5540') = medium light gray to medium gray; silt to very fine and some fine grains; sub angular; very clayey as mostly matrix supported in ashy clay; streaks and laminations showing grain support; poorly sorted; 60-80% quartz, and 20-40% mostly black to dark brown carbonaceous and some U EPOCH 16 · UNOCALIÞ Happy Valley #4 silicate fines and silts, and trace light green chloritic grains; poorly consolidated with soluble matrix; very poor to poor visible porosity. Coal (5600') = brownish black to dusky brown to grayish black; slightly firm and crumbly to malleable to very firm and brittle; hackly to flaky fracture; dull polish to slightly shiny luster; lignite often with clay residue on partings with streaks grading sub bituminous; interlaminated with to grading carbonaceous shale with thin carbonaceous partings in brownish organic claystone; slightly visible micro pyrite; some degassing on fractures. Tuffaceous claystone (5630') = medium light gray to occasionally light brownish gray; soft and soluble to occasionally slightly firm; clayey to siltylfine sandy texture; some laminations siltstone to fine sandstone; locally smooth ashy light gray clay grading ash fall tuff; often slight disseminated to micro lams and flakes of carbonaceous matter; locally with increasing carbonaceous partings in silt. Sandstone/siltstone (5720') = medium light gray to medium gray; silt to very fine and some fine grains; sub angular; very clayey as mostly matrix supported in ashy clay; streaks and laminations showing grain support; poorly sorted; 60-80% quartz, and 20-40% mostly black to dark. brown carbonaceous and some silicate fines, flakes, and silts, and trace light green chloritic grains; occasional floating medium to very coarse grains in claystone and sandstone especially non quartz dark. grains; poorly consolidated with soluble matrix; very poor to poor visible porosity. · Claystone (5820') = medium light gray to light gray to light brownish gray; slightly firm to moderately soft; soluble decreasing with argillaceous and grains; slightly to moderately silty/gritty texture; very slight to occasionally moderate disseminated silts and fines; occasionally grading brownish gray to dusky brown organic claystone with common carbonaceous flakes and partings and thin coals; grading siltstone to fine sandstone, mostly matrix supported with quartz grains, carbonaceous fines and flakes, dark. silicates, and minor chlorite; estimate poor to very poor porosity in sandstone. Tuffaceous claystone (5900') = medium to medium light gray; firm to slightly firm; moderately soluble; smooth to silty texture; locally sandy including very fine to fine grains; non to some slight carbonaceous fines and flakes especially silty to sandy; massive to locally interbedded to interlaminated with siltstone and sandstone; non calcareous. Tuffaceous claystone (5960')= medium to medium light gray; firm to slightly firm; moderately soluble; smooth to some silty texture; rare sandy including very fine to fine grains; some with slight carbonaceous fines and flakes especially silty to sandy; massive to locally interbedded to interlaminated with siltstone and sandstone; non calcareous. Tuffaceous siltstone/sandstone (6020') = medium light gray to light gray; silty to very fine to some fine lower grains; sub angular; poorly sorted and mostly matrix supported in ashy clay matrix; streaks and laminations grain supported; grading tuffaceous claystone; 80% quartz and 20% mostly carbonaceous silts and fines and minor flakes; estimate very poor porosity. Sandstone (5980') = medium light gray occasionally with brownish hue; very fine to fine to locally some medium grains; sub angular; poorly to occasionally moderately sorted; matrix and grain supported in silty clay matrix; grading to siltstone and claystone; 70% quartz, and 30% black to dark. gray and minor pink, white, and trace tan grains including mostly carbonaceous silts and fines, and some silicates including feldspar; estimate very poor to poor porosity. · Tuffaceous siltstone (6110')=medium light gray to light gray some with brownish hue to occasionally light brownish gray; slightly firm to moderately firm; moderately soluble; grading and interbedded with claystone; mostly coarse silt to very fine sand grains; slight to some moderate carbonaceous silts, fines, and flakes, and minor silicates; some with variably organic claystone occasionally grading to carbonaceous shale. U EPOCH 17 . UNO£AUÞ Happy Valley #4 Coal (6200') = black to brownish black; moderately firm to very firm; crumbly to brittle; hackly to flaky fracture; shiny to dull polish luster; sutrbituminous to lignite; occasionally grading to dusky brown carbonaceous shale with carbonaceous flakes and partings. Sandstone (6230') = medium light gray occasionally with brownish hue; very fine to fine to some medium lower grains; sub angular; poorly to occasionally moderately sorted; matrix and grain supported in silty clay matrix; grading to siltstone and claystone; 70% quartz, and 30% black to dark. gray and minor pink, white, and trace tan grains including mostly carbonaceous silts and fines, and some silicates including feldspar; estimate very poor to poor porosity. Coal (6270') = brownish black to black; moderately firm to very firm; crumbly to brittle; hackly to flaky fracture; shiny to dull polish luster; sub bituminous to lignite; often grading to dusky brown carbonaceous shale with carbonaceous flakes and partings. Coal (6395') =black to brownish black; firm; resinous luster; smooth to matte texture; conchoidal to irregular fracture; composed of bituminous coal with very carbonaceous shale at the contacts; visible bleeding gas noted in the cuttings. Sand (6430') = very light gray to pinkish gray; clast size ranges from medium lower to silt; sub round to round with well developed sphericity; some prolated grains; very poor sorting with silt size and very fine grain hard to discem; no abundant faction; polish to pitted texture; sub mature nature; no to very slight silic cement; abundant silt/ash matrix; matrix structured and supported; composed of quartz with secondary meta and chert; poor porosity and permeability; no oil indicators with oil base mud. . Sand (6550') = very pale orange to very light gray; clast size ranges from coarse lower to very fine lower; with mean faction being medium grains; sub angular to sub round; possible bit impacted coarse grains; moderate to well developed sphericity; very poor sorting; grading to conglomerate sand in parts; polished to chip to impacted texture; distinct change from previous sands; sub mature nature; very slight silic cement; slight silt matrix; grain support especially in lower sands; becoming cleaner with depth; composed of 90% quartz, 10% chert, meta and various lithic fragments; fair to good estimated porosity and permeability; no oil indicators oil base Tuffaceous siltstone (6620') = light brownish gray; moderate induration; crunchy; stiff; moderate cohesive to non adhesiveness; petc grooved fracture and habit; moderate earthy luster; silty to gritty texture; some very fine grain sandstone interbedded; massive beds of silt composed of 90% silt, 10% clay, very fine grained sand and various detrital material; some becoming slight carbonaceous in parts. Sandstone (6700') = pinkish gray to very pale orange; clast size ranges from medium lower to very fine lower; sub round to rounded; well developed sphericity; poorly sorted; polished to pitted texture; sub mature; non to very slightly cemented; abundant silt/ash matrix; hard to discern between siltstone and sandstone with matrix; matrix supported; composed of 90% quartz, 10% various lithic fragments; poor porosity and permeability; no oil indicators oil base mud. Coal (6740') = black to grayish black occ brownish black; firm; resinous to earthy luster in carbonaceous shale at the contacts; matte texture; sub conchoidal to hackly fracture; composed of very carbonaceous shales at contacts to lignitic to sub bituminous coal; visible bleeding gas in cuttings. Tuffaceous siltstone (6775') = light brownish gray to brownish gray; poor to moderate induration; mushy to pasty when rehydrated; slightly cohesive to slightly adhesive; petc grooved bit fracture and habit; moderate earthy luster; silty to ashy texture; massive beds of tuffaceous silt composed of 80% silt, 10% ash, 10% very fine grained sand. . g EPOCH 18 · URDCAL. Happy Valley #4 Tuffaceous siltstone (6875') = brownish gray; moderate induration; crunchy; stiff; mushy to pasty when rehydrated; moderate cohesiveness to not adhesive; pdc grooved bit fracture and habit; dull earthy luster; silty to gritty texture; massive beds of homogeneous silts composed of 90% silt, 10% various detrital material. Coal (6900') = black to grayish black; firm; resinous with some earthy luster at carbonaceous shale contacts; matte texture; sub conchoidal to hackly fracture; composed of lignite to bituminous coal; slight visible bleeding gas in coal cuttings. Sand (6940') = very pale orange; clast size ranges from medium lower to very fine lower some grading to silt; sub round to round; well developed sphericity; eqidimensional; poor to very poor sorting; no abundant faction; polished to pitted texture; sub mature nature; non to very slight silic cement; moderate to abundant silt and ash matrix dominant matrix support with secondary grain support in parts; composed of 90% quartz, 10% chert, meta and various lithic fragments; poor some fair porosity and permeability; no oil indicators with oil base mud. Tuffaceous siltstone (7010') = brownish gray; moderate induration becoming poor indurated when rehydrated (mushy to pasty); stiff; pdc grooved bit fracture and habit; dull earthy luster; silty to gritty texture; massive homogeneous beds of tuffaceous silt; composed of 90% silt, 10% various detrital material. Coal (7050') = black to brownish black; brittle to firm; resinous luster some becoming earthy in carbonaceous shale and clay contacts; matte texture; hackly to granular fracture; composed of lignitic coal to sub bituminous grading to very carbonaceous shale and clay. · Tuffaceous siltstone (7100') = brownish gray; moderate induration; stiff; pdc grooved fracture and habit; dull earthy luster; silty to gritty texture; massive homogeneous beds of tuffaceous silt; composed of 90% silt, 1 0% various detrital material. Coal (7120') = black some brownish black brittle to firm; resinous luster; matte texture; hackly to irregular fracture; composed of lignitic to bituminous coal; abundant visible bleeding gas from chips. Tuffaceous siltstone (7180') = light brownish gray to pale yellowish brown; Moderate induration; stiff; mushy to pasty when rehydrated; pdc grooved bit fracture and habit; dull earthy luster; organic look to cuttings; silty to gritty texture; massive homogeneous beds of silt; some becoming carbonaceous in parts; composed of 80% silt, 10% tuff, 10% carbonaceous laminae and various detrital material. Tuffaceous claystone = (7250') pale yellowish brown; firm; stiff; mushy to pasty when rehydrated; pdc grooved fracture and habit; dull earthy luster; Smooth texture; composed of 80% clay, 20% silt trace ash. Coal (7270') = black to brownish black; some moderate brown at shale contacts; brittle to firm; resinous luster; matte texture; hackly to irregular fracture; composed of very carbonaceous shale at contacts to bituminous coal at mass; abundant visible bleeding gas from all. Sand (7310') = very pale orange; clast size ranges from coarse lower to very fine upper to lower; sub round to round; well developed sphericity; very poor1y sorted; grading to conglomerate sand in parts; sub mature nature; non to very slight silic cement; moderate to abundant silt and ash matrix; matrix structured support grading into a sandstone at the base; increasing silt and less ash at the base; composed of 90% quartz, 10% chert, meta, greenstone and various lithic fragments; fair porosity and permeability no oil indicators with oil base mud. · Tuffaceous siltstone (7360') = pale yellowish brown; moderate induration; ~ EPOCH 19 . UNOCALe Happy Valley #4 Crumbly to crunchy; stiff to mushy after rehydration; pdc grooved fracture and habit; earthy luster; silty to gritty texture; scattered ash laminae; interbedded with very fine grain sand and sandstone grading back to silt. Coal (7400') = black; firm to brittle; resinous to earthy luster in carbonaceous shale; matte to striated shale; coal is very ground up with pdc and rop; granular habit; composed of bituminous coal. Tuffaceous siltstone (7480') = pale yellowish brown; moderate indurated; crumbly to crunchy; stiff to mushy; pdc grooved fracture and habit; earthy luster; silty to gritty occ ashy texture interbedded very fine grain sand very hard to discern between siltstone and sandstone; grading in parts to very carbonaceous silt and clay. Very carbonaceous shale (7520') = dusky yellowish brown to grayish black and all hues of both; brittle; earthy luster matte texture; sub planar to tabular fracture alone shale partings; composed of very carbonaceous shale grading to sub lignitic coal; visible bleeding gas only in coal. Tuffaceous siltstone = (7560') light brownish gray; moderate induration; stiff until hydrated then mushy to pasty; pdc grooved fracture and habit; moderate earthy luster; silty to ashy texture; thick. beds of gradational silt some becoming organic to carbonaceous. Tuffaceous siltstone (7590') =Iight brownish gray to pale yellowish brown; moderate induration; overall stiff becoming mushy to pasty when rehydrated; pdc grooved fracture and habit; moderate earthy luster; silty to ashy texture; thick. to massive beds of gradational silt; composed of 80% silt, 20% clay, ash and carbonaceous material. . Ash fall tuff = very light gray overall; moderately soft to slighUy firm; mostly slighUy to some moderately silty texture; often slightly gritty with float very fine to fine quartz grains, black to dark gray carbonaceous clasts and fines and minor black to green silicates often partially altered to clay; some grayish orange calcareous clay clasts and micro lams; often grading to tuffaceous siltstone and calcareous tuff; with streaks and laminations of matrix and grain supported sandstone; tuff has greasy dark streaks from carbonaceous fines and minor orange streaks from calcareous clay; locally grading carbonaceous shale or interbedded with coal. Coal (7700') = brownish black to black; very firm and brittle with hackly to angular fracture, to moderately firm and flaky to crumbly; vitreous black luster to dull clayey dark brownish clayey appearance on freshly broken fragment; sub bituminous to lignite; massive to grading brownish organic claystone and carbonaceous shale; traces micro pyrite. Tuffaceous claystone (7730') = medium light gray to some light brownish gray; firm to moderately firm; soluble to moderately soluble; slighUy to moderately siltylvery fine sandy texture; grading tuffaceous siltstone and minor sandstone; very slight coal and clay silts and clasts; trace micas; trace green chloritic grains; some slightly organic with brownish clay; locally increasing organic grayish brown clays often with increasing carbonaceous matter including flakes and micro lams and grading to carbonaceous shale; non calcareous Sandstone (7800') = very light gray to light gray; very fine to medium grains; angular to sub rounded; poorly to occasionally moderately sorted occurring as streaks and thin beds in tuffaceous claystone and ash; matrix and grain supported; 75% quartz, and 25% black to dark gray to white to red to green including carbonaceous fines and clasts and some silicates partially altered to clay (including chlorite); carbonaceous matter often occurs as dark gray streaks interlaminated with silts and sands; occasional interlaminated coal; trace chlorite staining of ash; estimate very poor to poor to possible streaks fair porosity. . U EPOCH 20 . UNOCALe Happy Valley #4 Coal (7880') = black to brownish black to dusky brown; slightly finn and crumbly to flaky, to very finn and brittle and platy to irregular blocky fracture; lignite to sub bituminous; mostly lignite 788()" 7900' grading dusky brown grayish brown carbonaceous shale; to mostly sub bituminous 7920-30'; degassing on fracture planes; some thin coals in variably organic tuffaceous sediments 7950-7970'. Sandstone (7975') = very light gray; very fine to coarse lower; sub angular; poorly to occasionally moderately sorted; matrix and grain supported in ashy clay; occurs as streaks and thin beds in tuffaceous ash; often grading siltstone; 75% quartz, and 25% coal and carbonaceous fines and clasts, and very dark gray to black to rare green and red silicates occasionally altered to clay; carbonaceous fines often as streaks; slight thin streaks and clasts non calcareous grayish orange clay; estimate some poor to rare fair porosity. Coal (8060') = grayish black. to brownish black; finn and brittle to slightly finn and crunchy; flaky to platy to angular fracture; vitreous to dull polish; dense to some faint organic clay residue on partings; mostly sub bituminous; locally interbedded in dusky brown to brownish gray carbonaceous shale and organic claystone. Sandstone (8130') = very light gray; very fine to coarse lower; sub angular to sub rounded; poorly to some moderately sorted; grain and matrix supported in ashy clay; occurs as streaks and thin beds in tuffaceous ash; often grading siltstone; 75% quartz, and 25% coal and carbonaceous fines and clasts, and very dark gray to black to rare green and red silicates occasionally altered to clay; carbonaceous fines often as streaks; slight thin streaks and clasts non calcareous grayish orange clay; estimate some poor to streaks fair porosity. . Tuffaceous claystone (8180') = medium dark gray to medium light gray to light brownish gray; finn to moderately finn; soluble; smooth to some silty texture; clay often slightly to occasionally moderately organic; slight very finely disseminated carbonaceous matter and scattered flakes; occasionally grading to carbonaceous shale with interbedded coal, mostly sub bituminous. Tuffaceous claystone (8260') = medium dark gray to medium light gray to light brownish gray; finn to moderately finn; soluble; smooth to silty/gritty texture; grading siltstone and very fine to fine grained sandstone especially light gray; clay often slightly to occasionally moderately organic giving brownish color; slight silts, fines, and occasional flakes and laminations of carbonaceous matter; some thinly interbedded coal in medium to dark gray and brownish gray claystone. Tuffaceous siltstone (8330') = medium light to medium gray to light brownish gray; moderately finn; soluble to moderately soluble; often coarse silt to very fine sand; locally grading very fine to fine light gray sandstone; often slightly organic; grading to variably organic tuffaceous claystone with minor interbedded coal. Tuffaceous siltstone (8430') = pale yellowish brown; poor to moderate induration; crumbly to crunchy; becoming mushy to pasty when rehydrated; pdc grooved fracture and habit; moderate earthy luster; silty to gritty occ ashy "texture; composed of 70% silt, 20% clay," 10% carbonaceous and detrital material. Coal (8470') = black to grayish brown in very carbonaceous clay at contact points finn; resinous luster in coal and very earthy luster in carbonaceous clay and shale; matte text to smooth text at contacts; hackly coal fracture; composed of bituminous coal; abundant visible bleeding gas from cuttings. Tuffaceous siltstone (8530') = pale yellowish brown to light brownish gray; very poor to poor induration; brittle; mushy to pasty when rehydrated; pdc grooved fracture and habit; dull earthy luster; clayey to silty to ashy texture; grading to very silty ash in parts; composed of 60% silt, 20% clay. 20% ash;" visible pyroclastic relic shards. . [;I EPOCH 21 . UNOCALe Happy Valley #4 Tuffaceous claystone (8600') = light brownish gray to grayish brown and various hues of both; very soft to firm; mushy to pasty when rehydrated; pdc bit grooved fracture and habit; dull to moderate earthy luster; clayey to ashy "texture; composed of 80% clay, 20% silt grading to very carbonaceous clay at 8600'; scattered thin ash beds. Sand (8630') = very pale orange; clast size ranges from fine upper to silt; sub round to rounded; well developed sphericity; some prolated grains; very poor sorting; no abundant faction; polished texture; sub mature nature; non visible silic cement; abundant silt and ash matrix; dominant matrix support; very hard to discern between silt and sand; composed of 90% quartz and various lithic fragments; poor to no visible porosity and permeability; no oil indicators with oil base mud. Coal (8700') = black to grayish black; firm; resinous luster; matte texture; hackly fracture; very carbonaceous shale and clay at upper contact grading to bituminous coal at mass; abundant bleeding gas noted in cuttings. Tuffaceous siltstone (8730') = very pale orange; poor to moderate induration; Becoming very mushy to pasty after rehydration; poor cohesiveness to slight adhesiveness; pdc grooved to amorphous fracture and habit; increase in ash content of silts; moderate earthy to slightly greasy luster; ashy texture massive beds of gradational silts. Coal (8750') = black to grayish black; firm to brittle; resinous luster; matte texture; hackly to granular pdc fracture; composed of bituminous coal; visible bleeding gas from cuttings . Sand (8800') = very pale orange; very fine to fine and scattered medium to coarse lower; sub angular to sub rounded with moderate sphericity; poor1y sorted and matrix supported; poor sorting; no abundant faction; polish texture; abundant silt and ash matrix; grading tuff and siltstone; hard to define silt and sand borders; poor porosity and poor permeability; composed of 90% quartz, and 10% various lithics. Sandstone (8840') = medium light gray to very pale orange; very fine to coarse lower and scattered coarse upper to very coarse; sub rounded to angular; moderate to high sphericity; poorly sorted in silty clay matrix; mostly matrix supported with slight to moderate grain contact; some loose grains mostly frosted with clay; 65% quartz, and 35% brown to black to minor green, pink, and tan including silicate grains (mafics, chert, feldspar) and coal and clay and minor calcite clasts; very poor to poor visible porosity and possible streaks fair porosity. Sandstone (8905') = medium light gray to very pale orange to very light gray; Very fine to medium and slightly scattered coarse to trace pebble; sub rounded to angular; moderate to high sphericity; overall matrix supported with moderate to slight grain contact; grading ash and siltstone; 70% quartz, and 30% black to gray to brown to minor green, pink and tan including silicate grains, and coal, clay, and minor calcite clasts; poor to very poor visible and possible streaks fair porosity. Tuffaceous claystone/siltstone (8965') = light gray to light brownish gray; slightly to moderately firm; very soluble; moderately silty to very fine sandy (quartz); very slight disseminated carbonaceous silts and fines throughout; often slightly organic with brownish color from organic clay; locally grading very fine to fine grained sandstone; locally moderately organic grading to carbonaceous shale; some thinly bedded coal in carbonaceous shale and variably organic tuffaceous sediments. Coal (9070') = black to brownish black; very firm and brittle with hackly to conchoidal fracture, to moderately firm and crumbly to flaky to platy; slight disseminated micro pyrite through out; dull polish to earthy with brownish clay residue on flakes to vitreous black luster on conchoidal fracture; sub bituminous to lignite; massive, to thinly bedded grading brown organic claystone; some interbedded carbonaceous shale with moderate to abundant carbonaceous flakes and partings in variably organic clay. . U EPOCH 22 · UNOCALe Happy Valley #4 Sandstone (9110') = very light gray to medium light gray to light olive gray; very fine to medium; sub angular; moderate sphericity; poorly to some moderately sorted; mostly matrix supported with slight grain contact to streaks grain supported; 70-80% quartz, and 20- 30% black to gray to green to brown including silicate grains with some clay (including chlorite) alteration, and coal and carbonaceous fines and clasts; mostly poor visible porosity to streaks fair porosity; trace hard dense calcareous streaks. Sandstone (9195') = light gray; very fine to coarse lower, especially fine to medium lower; sub angular to sub rounded; poorly to moderately sorted fining downward; grain and matrix supported in ashy clay; 80% quartz, and 20% carbonaceous lithics and silicates; very poor to some fair visible porosity. Sand (9280') = very pale orange; clast size ranges from very coarse upper (pebble) to silt; becoming coarser with depth to conglomerate sand at base; sub round; moderate to well developed sphericity; equidimsional; abundant faction is medium grains; moderate upper to very poor sorting at base; polished to chipped texture; sub mature nature; non to very slight silic cement; non to slightly calcareous at the top; moderate ash and silt structured matrix becoming more grain supported with depth increased ash content and less silt at the base; composed of 90% quartz, 10% chert, meta and various lithic fragments fair to poor porosity and permeability increasing slightly at the base but has much ash infill; oil base mud. Coal/very carbonaceous shale (9415') = black to brownish black to dark brown at contacts; brittle to firm; earthy to resinous luster; matte texture; irregular to hackly fracture; petc bit ground up fragments; composed of very carbonaceous shale to lignitic coal; visible bleeding gas from cuttings in minor amounts; grading to organic looking tuffaceous siltstone. · Tuffaceous siltstone (9440') = pale yellowish brown to dark yellowish brown; moderate induration; crumbly to brittle; moderate cohesive to non adhesive; petc grooved fracture and habit; dull earthy luster; silty to clayey texture; uniform homogeneous organic appearance. Coal (9485') = black to brownish black; brittle to firm; resinous to earthy luster at contacts; matte texture; hackly to irregular pdc ground up fracture; composed of sub bituminous to lignitic coal; very slight visible bleeding gas from cuttings. Coal/very carbonaceous shale (9515') = black to brownish black; brittle to firm resinous to earthy luster in shale; matte texture; hackly to irregular fracture; composed of very carbonaceous shale to sub bituminous coal. Tuffaceous claystone (9530') = light brown to light brownish gray to very light gray; slightly firm and very soluble; slightly to moderately siltyl very fine sandy (quartz); mostly slightly to moderately organic; very slight carbonaceous silts and fines; some silt and sand streaks and laminations;locaUy grading brown to dark brown carbonaceous shale with interbedded coal. Sandstone (9585') = very light gray to medium light gray; very fine to fine sub angular to angular grains 9585-9635' mostly matrix supported with slight fraction to 9600' friable with grain support and poor to fair visible porosity; coarsening downward 9635'-9655'; with angular to sub rounded mostly fine to medium grains and some coarse to pebble, mostly matrix supported with slight to some moderate grain contact, poorly to moderately sorted, and some poor to fair porosity especially in cleaner fine to medium sands; grading poorly sorted conglomerate at 9655'; 60-80% quartz, and 20-40% black. to gray to green to pink clasts including silicates (chert, feldspar, mafics) often altered to clay, and coal and other clasts. · Tuffaceous claystone (9530') = light brown to light brownish gray to very light gray; slightly firm and very soluble; slightly to moderately siltylvery fine sandy (quartz); mostly slightly to moderately organic; very slight carbonaceous silts and fines; some silt and sand streaks and laminations; locally increasingly organic brownish claystone often with flakes and partings of carbonaceous matter grading to carbonaceous shale with interbedded coal. U EPOCH 23 . UNOCALIÞ Happy Valley #4 Sandstone (9800') = medium light gray to medium gray with faint olive hue; fine to coarse lower to some coarse upper 9850-9870'; sub angular to angular; moderate sphericity; moderately to poorly sorted in ashy clay and silt matrix; mostly matrix supported with moderate to slight grain contact to locally mostly grain supported; 70% quartz, and 30% gray to black to amber to green to red grains including silicates and coal and clay lithics; trace calcite; trace hard dense sandstone with calcareous cement; mostly poor to occasional fair porosity. Sand/sandstone (9870') = very pale orange; clast size ranges from coarse lower to fine lower; sub round to round; well developed sphericity; trace prolate but most equidimensional; no abundant faction; polished texture; sub mature nature; non to very slight silic cement; moderate to abundant ash and silt structured matrix; both grain and matrix support; composed of 90% quartz, 10% chert, meta and various lithic fragments; poor to fair porosity and permeability; oil base mud. Ash (9965') = grayish orange at 9920' becoming white mottled pinkish gray at 9980'; very poor induration; greasy luster; ashy texture; devitrified ash; slightly reworked and grading to a very ashy siltstone in parts; very expansive when rehydrated; visible pyroclastic relic shards in all samples of ash; some very thin very carbonaceous shale and sub lignitic coal. Tuffaceous siltstone (10010') = very pale orange; very poor induration; mushy to pasty; poor cohesiveness to moderate adhesiveness; amorphous fracture; sub nodular habit; greasy to earthy luster; ashy to silty texture; composed of 50% "silt, 50% ash with some variation of contents; minor sand interbedded. . Very carbonaceous shale/coal (10025') = brownish black to grayish black; brittle to firm; earthy oce resinous luster; matte to gritty texture; irregular to hackly pdc grounded fracture; composed of sub lignitic coal to carbonaceous shale. Carbonaceous shale and coal (10095') = brownish black; firm to brittle; earthy to resinous luster; matte to gritty texture; irregular to hackly pdc grounded fracture; slight visible bleeding gas; composed of carbonaceous shale and sub lignitic coal. Tuffaceous siltstone (10140') =very pale orange to pale yellowish brown; very poor to poor induration; mushy to pasty when rehydrated; very expansive with increase in devitrified ash at 10160; pdc bit grooved fracture and habit becoming amorphous after time; greasy to earthy luster; ashy to silty texture; trace fine grain sand to silt in matrix; massive beds of silts and ash; composed of 60% silt to 40% ash and showing various consistencies of both. Sandstone (10160') = medium light gray to light gray; very fine to fine and scattered medium grains; sub angular; mostly matrix supported with some grain contact; thinly bedded or as streaks and laminations in ash; 80% quartz, and 20% coallithics and silicates; some poor visible porosity Sandstone (10200') = medium light gray with slight olive hue; very fine upper to very coarse and scattered pebbles, especially fine to coarse, and overall coarsening downward; sub angular to angular; moderately to poorly sorted and matrix and grain supported in ashy clay; common soft calcite as part of matrix; 65% quartz, and 35% gray to black to green to red to brown mostly Silicates and weathered silicates and some lithics; estimate poor to fair porosity. . Sandstone/ash fall tuff (10250') = light gray to medium light gray some with slight olive hue; fine to coarse grains; angular to rounded; poorly sorted and matrix supported with slight grain contact to occasional streaks grain supported; common grains altered to clay becoming part of matrix; grading ash fall tuff and calcareous tuff; 75% quartz, and 25% silicates, and coal and other lithics; locally conglomeratic with large grains in clay matrix or broken from hard siliceous streaks; some very poor to poor porosity. [:I EPOCH 24 · · · UNOCAut Happy Valley #4 Sandstone (10340') = medium light gray some with slight olive hue; very fine to coarse, especially fine to coarse lower, with locally scattered pebbles; angular to sub rounded with overall more angular in coarser fraction; mostly matrix supported with slight grain contacts to 10370', and matrix and grain supported to 10420'; slight to moderate calcite in matrix; some moderately consolidated streaks with slight siliceous cement to trace hard streaks with calcareous cement; 70% quartz, and 30% black to gray to brown to green to red grains including silicates, some partially altered to clay, and coal and other lithics; mostly poor to some fair porosity. Sandstone (10455') = medium light gray some with slight olive hue; very fine to medium lower and scattered coarse to trace pebble; sub rounded to sub angular; matrix and grain supported; trace calcite in matrix; some poorly consolidated; composition similar to above sandstone; some fair porosity. Sand (10520') = very light gray to very pale orange; clast size ranges from medium upper to silt; sub round to round moderate to well developed sphericity; poor sorting; no abundant faction; polished to chip texture; sub mature nature; non to very slight silic cement; abundant ash and silt matrix; matrix supported; composed of 90% quartz, 10% chert, meta and various lithic fragments with poor porosity and permeability; grading to an ashy siltstone. Ash (10615') = very pale orange; very poor induration; greasy luster; ashy texture; devitrified ash interbedded with silt; slight to moderate reworking; visible pyroclastic relic shards; some very fine to fine sand in silt/ash; Composed of various consistencies of silt and ash. n EPOCH 25 UNOEALe Happy Valley #4 · SURVEY INFORMATION: Happy Valley #4 · Measured Depth TVD Inclination Azimuth E (+) W (-) N (+) S (-) Dog Leg Feet Feet Degrees Degrees Degrees/100' 0 0 0 0 0 0 0 50 50 0.5 311.32 -0.16 0.14 1 100 100 1 311.32 -0.66 0.58 1 150 149.99 1.13 303.01 -1.4 1.13 0.4 200 199.98 1.2 314.28 -2.19 1.77 0.48 250 249.97 1.18 307.87 -2.97 2.45 0.27 300 299.95 1.29 311.31 -3.79 3.14 0.27 350 349.94 1.28 302.76 -4.69 3.81 0.38 400 399.93 1.33 308.38 -5.61 4.47 0.27 450 449.91 1.42 312.75 -6.52 5.25 0.28 500 499.9 1.35 314.1 -7.4 6.08 0.15 550 549.89 1.33 316.52 -8.22 6.92 0.12 600 599.87 1.25 314.26 -9.01 7.72 0.19 650 649.86 1.23 310.05 -9.81 8.44 0.19 700 699.85 1.3 310.84 -10.65 9.16 0.14 750 749.84 1.2 310.82 -11.48 9.87 0.2 800 799.83 1.21 307.35 -12.29 10.53 0.15 850 849.82 1.15 309.44 -13.1 11.17 0.15 900 899.8 1.17 310.21 -13.88 11.82 0.05 919 918.8 1.29 301.69 -14.21 12.06 1.15 1081 1080.76 1.28 289.45 -17.47 13.62 0.17 1145 1144.74 1.48 290.01 -18.92 14.14 0.31 1207 1206.72 1.48 295.7 -20.39 14.76 0.24 1271 1270.7 1.57 288.11 -21.97 15.39 0.35 1334 1333.67 1.67 288.22 -23.66 15.95 0.16 1397 1396.65 1.69 290.57 -25.4 16.56 0.11 1460 1459.62 1.68 282.57 -27.17 17.09 0.37 1523 1522.59 1.82 285.92 -29.04 17.56 0.28 1586 1585.56 1.85 291.54 -30.95 18.21 0.29 1649 1648.51 2.75 292.09 -33.29 19.15 1.43 1712 1711 .42 3.31 296.66 -36.32 20.54 0.97 1775 1774.31 3.44 297.09 -39.63 22.22 0.21 1839 1838.16 4.25 290.28 -43.56 23.91 1.45 1902 1900.92 5.77 294.00 -48.64 26.01 2.47 1965 1963.55 6.76 300.63 -54.73 29.19 1.94 2028 2026.03 7.93 305.30 -61.47 33.59 2.08 2091 2088.31 9.34 310.03 -68.93 39.39 2.50 2155 2151.38 10.3 312.68 -77 .11 46.60 1.66 2218 2213.28 11.15 318.99 -85.25 55.02 2.30 · [:I EPOCH 26 · UNOCALe Happy Valley #4 SURVEY INFORMATION: Happv Vallev #4 Measured Depth TVD Inclination Azimuth E (+) W (-) N (+) S (-) Dog Leg Feet Feet Degrees Degrees Degrees/100' 2281 2274.98 12.17 326.47 -92.91 65.15 2.89 2344 2336.53 12.47 328.44 -100.14 76.48 0.82 2470 2459.59 12.32 327.64 -114.46 99.43 0.18 2596 2582.63 12.58 327.55 -129.01 122.36 0.21 2723 2706.61 12.47 327.05 -143.89 145.54 0.12 2849 2829.58 12.71 326.68 -158.91 168.54 0.20 2912 2891.06 12.49 326.33 -166.49 180.00 0.37 2975 2952.55 12.68 326.33 -174.10 191 .43 0.30 3038 3014.13 11.67 325.28 -181.56 202.42 1.64 3164 3137.65 11.08 323.39 -196.04 222.61 0.55 3227 3199.48 11.04 322.67 -203.31 232.27 0.23 3290 3261.31 11.13 323.56 -210.58 241.95 0.31 3353 3323.15 10.91 323.05 -217.78 251.61 0.38 3416 3385.09 10.12 322.72 -224.71 260.78 1.26 3479 3447.13 9.88 322.32 -231.37 269.46 0.40 3542 3509.29 8.89 321.68 -237.69 277.56 1.58 3605 3571.66 7.26 320.76 -243.23 284.46 2.60 3668 3634.23 6.16 322.05 -247.82 290.21 1.76 3732 3697.90 5.44 317.97 -251.97 295.17 1.30 3795 3760.63 5.08 313.94 -255.97 299.32 0.82 3858 3823.41 4.67 312.02 -259.89 302.98 0.70 3921 3886.21 4.38 313.10 -263.55 306.34 0.48 3984 3949.04 3.94 313.94 -266.87 309.48 0.71 4032 3996.93 3.79 317.72 -269.12 311.80 0.62 4157 4121.63 4.24 320.11 -274.86 318.40 0.39 4283 4247.27 4.35 321.60 -280.82 325.72 0.12 4536 4499.83 2.32 316.69 -290.29 336.97 0.81 4788 4751.57 2.91 314.80 -298.32 345.18 0.24 5040 5003.17 3.50 319.06 -307.89 355.49 0.25 5293 5255.84 2.38 317.37 -316.51 365.18 0.44 5546 5508.54 3.17 315.38 -324.98 374.03 0.32 5798 5760.06 3.89 310.19 -336.41 384.51 0.31 6051 6012.49 3.84 306.77 -349.74 395.11 0.09 6303 6263.84 4.39 300.04 -364.86 404.99 0.29 6555 6515.13 4.21 301.90 -381.06 414.71 0.09 6807 6766.19 5.63 302.10 -399.29 426.28 0.56 7060 7017.90 5.94 300.39 -421.10 439.50 0.14 7312 7268.26 7.12 302.82 -445.47 454.56 0.48 7438 7393.28 7.18 302.39 -458.68 463.01 0.06 7564 7518.32 6.95 299.91 -471.94 471.03 0.30 7754 7706.70 8.04 303.14 -493.03 484.03 0.61 g EPOCH 27 UNOCALe Happy Valley #4 . SURVEY INFORMATION: Happy Valley #4 Measured Depth TVD Inclination Azimuth E (+) W (-) N (+) S (-) Dog Leg Feet Feet Degrees Degrees Degrees/100' 7880 7831.54 7.50 299.14 -507.59 492.85 0.61 8006 7956.46 7.57 302.08 -521.80 501.26 0.31 8132 8081.36 7.57 301.47 -535.91 510.00 0.06 8258 8206.20 7.96 301 .20 -550.46 518.85 0.31 8385 8331.98 7.92 301.21 -565.46 527.94 0.03 8511 8456.66 8.70 304.10 -580.78 537.78 0.70 8637 8581.28 8.27 301.76 -596.37 547.89 0.44 8763 8705.90 8.74 302.19 -612.18 557.76 0.38 8890 8831.37 9.07 298.84 -629.11 567.73 0.48 9016 8955.76 9.25 302.85 -646.32 578.02 0.53 9143 9080.86 10.57 305.10 -664.43 590.25 1.08 9269 9204.67 10.84 304.71 -683.64 603.62 0.22 9395 9328.30 11.44 304.33 -703.70 617.41 0.48 9521 9451.64 12.11 306.02 -724.71 632.23 0.60 9647 9574.79 12.33 306.67 -746.19 648.04 0.21 9773 9697.70 13.10 307.79 -768.26 664.82 0.64 9900 9821.05 14.44 310.54 -791.67 683.93 1.17 10026 9943.14 14.15 310.59 -815.30 704.16 0.23 10152 10065.16 14.73 309.97 -839.28 724.47 0.48 10278 10186.89 15.22 311.99 -863.85 745.83 0.57 10404 10308.29 15.81 312.42 -888.81 768.47 0.48 10620 10517.00 PROJECT FOR TD TOOL FAILED . g EPOCH 28 UNOCALe Happy Valley #4 DAILY MUD PROPERTIES Date Well#-Interval Depth MW FV PV YP Gels HTHP FL FC Solids OillWater Sand PH CI Ca 3/13/04 4-3 4106 9.3 97 27 9 12/20/24 4.6 0/2 7.4 78/13 0.15 3/14104 4-3 6396 9.2 75 35 3 10/17/20 4.5 0/2 9.3 77/12 0.15 3/15/04 4-3 8436' 9.1 72 25 10 9/17/20 4.2 0/2 8.5 78/12 0.15 3/16/04 4-3 8840' 9.2 73 27 9 9/15/18 4.2 0/2 8.4 78/12 0.15 3/17/04 4-3 9820 9.1 73 25 9 9/15/17 4.0 0/2 8.3 78/12 0.15 3/18/04 4-3 1 0459' 9.2 77 26 8 8/15/18 4.2 0/2 11.4 75/12 0.15 3/19/04 4-3 10620' 9.2 79 25 8 8/16/19 4.2 0/2 11.4 75/12 0.15 3/20104 4-3 10620' 9.2 70 29 8 8/17/20 4.2 0/2 9.4 77/12 0.15 . U EPOfH 29 . UNOCALe Happy Valley #4 BIT RECORD Bit Grading I 0 D L B G 0 R N U U 0 E A T E N T L C A U H A E E L A R G E S R R T I E R 0 C I N N R R H 0 G C o 0 A N S H P 11II 11II R A U S S R L L E D Bit# Size MFR Type SIN Jets Depth Depth Drilled Hours Ave Ave Ave Ave HV #4 1 RR 12.25 HTC MX-C1 7629M11 4x16 71' 983 912' 8.8 137 4 66 NA 2 RR 8.5 HYC DS- 24313 983' 4084 3101 13.8 459 5 115 2549 70FNPV 3 6.125 HTC HCM406 7102176 N/A 4084' 10620 6536' 91.4 148.6 4.5 57.6 3229 2 4 WT A N I BT TD . ~ EPO~=H 30 . Daily Report Page 1 of 1 UNOCAL DAIL Y WELLSITE REPORT g EPOCH . Happy Valley #4 REPORT FOR SHANE HAUCK DATE Feb 07,2004 DEPTH 983.00 PRESENT OPERATION= TRIP OUT FOR 9 5/8" CASING TIME 04:00 YESTERDAY 80.00 24 Hour Footage 903' CASING INFORMATION 95/8" @ DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS TIBIC PULLED 1RR 12.25" HTC MX-C1 76291W1 4X16 71' 983' 912' 8.8 NA TD DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 387.9 @ 82.00 4.2 @ 923.00 137.2 0 ftlhr SURFACE TORQUE 3857 @ 408.00 679 @ 538.00 2306.7 0 amps WEIGHT ON BIT 12 @ 223.00 .5 @ 643.00 3.7 0 Klbs ROTARY RPM 73 @ 179.00 28 @ 935.00 64.7 0 RPM PUMP PRESSURE 25 @ 581.00 25 @ 983.00 10.8 0 psi DRILLING MUD REPORT DEPTH: 917' MW 8.9 VIS 68 PV 13 YP 39 FL 10.2 Gels 17/20/24 CL- 34000 Fe 1.0 SOL 2.2 SD 0.25 OIL 0 MBL pH 8.5 Ca+ 120 CCI MWD SUMMARY IN RVAL TO GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 7 @ 659.00 .5 @ 454.00 2.1 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0.0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1 ) 724 @ 659.00 43 @ 454.00 140.9 CONNECTION GAS HIGH= 0 ETHANE(C-2) 0 @ 0 0 @ 0 0.0 AVG= 0 PROPANE(C-3) 0 @ 0 0 @ 0 0.0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0.0 CURRENT BACKGROUNDIAVG 2 PENTANE(C-5) 0 @ 0 0 @ 0 0.0 HYDROCARBON SHOWS NORMAL GAS READINGS FOR THIS SECTION INTERVAL LlTHOLOGYIREMARKS GAS DESCRIPTION LITHOLOGY LITHOLOGY NOT STARTED UNTIL UNDER 9 5/8" CASING PRESENT LITHOLOGY DAILY ACTIVITY SKID RIG OVER TO HAPPY VALLEY #4, RIG UP AND SPUD WELL. DRILL FROM 80'TO 916', INWHICH THE ROP DRASTICALLY SLOWS DOWN SUMMARY FROM 150 FTIHR TO 25 FT/HR. INCREASE IN TROQUE WITH ADDED BIT WEIGHT. TO CALLED AT 983' KELLY DOWN. CARBIDE LAG = 2280 BIU STROKES = 4.3 BBLS OVER GAUGED HOLE Epoch Personel On Board= 2 Daily Cost $1740 Report by: LEES F. BROWNE JR . file:/ ^ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HappvV allev5\Moming%20Reports\20040207 .htm 4/2712004 Daily Report Page 1 of 1 UNOCAL AFE#161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR DOUG NIENHAUS DATE Feb 19, 2004 DEPTH 983.00 PRESENT OPERATION: BOPE TIME 04:00 YESTERDAY 983.00 24 Hour Footage 0 CASING INFORMATION 95/8" @ 978' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 2RR 8.5 HYC DS-70FNPV 24313 983' DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 @ 0 0 @ 0 0 0 fVhr SURFACE TORQUE 0 @ 0 0 @ 0 0 0 amps WEIGHT ON BIT 0 @ 0 0 @ 0 0 0 Klbs ROTARY RPM 0 @ 0 0 @ 0 0 0 RPM PUMP PRESSURE 0 @ 0 0 @ 0 0 0 psi DRILLING MUD REPORT DEPTH: 983' MW 9.1 VIS 42 PV 10 YP 17 FL 8.2 Gels 7/12/14 CL- 32500 Fe 1.0 SOL 3.1 SD 0.15 OIL 0 MBL pH 8.4 Ca+ 560 CCI MWD SUMMARY .AL TO GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 0 @ 0 0 @ 0 0 TRIP GAS: 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS: 0 CHROMATOGRAPHY(ppm) SURVEY: 0 METHANE(C-1) 0 @ 0 0 @ 0 0 CONNECTION GAS HIGH: 0 ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG: 0 PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 0 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS NO DRILLING MUD CIRCULATED THE LAST 24 HOURS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY LITHOLOGY STARTS UNDER 9 5/8" CASING PRESENT LITHOLOGY DAILY ACTIVITY SUMMARY NIPPLE DOWN HAPPY VALLEY #5, SKID RIG TO HAPPY VALLEY #4, NIPPLE UP AND TEST BOPE. Epoch Personel On Board: 4 Daily Cost $2325 Report by: LEES F. BROWNE JR. . file://\ \Dmltwo\c-drive\DMLDA T A \UNOCAL\HaDDvV allev5\Momin!!%20ReDorts\20040219 .htm 4/27/2004 Daily Report Page 1 of 1 UNOCAL AFE# 161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR DOUG NEIHAUS DATE Feb 20, 2004 DEPTH 3356.00 PRESENT OPERATION= DRILLING TIME 03:32:52 YESTERDAY 984.00 24 Hour Footage 2372 CASING INFORMATION 95/8" @ 977' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 2596 12.58 327.55 2582 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 2RR 8.5 HYC DS·70FNPV 24313 983 8.3 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 1641.4 @ 1204.00 19.8 @ 1003.00 530.6 360.26367 fUhr SURFACE TORQUE 4264 @ 3162.00 SLIDE @ 2964.00 2117.1 3111.63208 amps WEIGHT ON BIT 22 @ 3282.00 .5 @ 1262.00 5.3 3.50571 Klbs ROTARY RPM 178 @ 3307.00 SLIDE @ 3280.00 122.7 150.60979 RPM PUMP PRESSURE 3279 @ 3075.00 2100 @ 987.00 2502.9 2727.49292 psi DRILLING MUD REPORT DEPTH: 2882' MW 9.2 VIS 40 PV 9 YP 15 FL 9.4 Gels 6/10/14 CL- 31500 FC 1.0 SOL 4.1 SO 0.25 OIL 0 MBL pH 8.6 Ca+ 560 CCI MWD SUMMARY .VAL TO TOOLS GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 353 @ 3223.00 0 @ 1005.00 47.4 TRIP GAS= 0 @ 983' CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 69777 @ 3223.00 22 @ 1159.00 8169.5 CONNECTION GAS HIGH= ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG= 0 PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 45 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS 3223' = 353 UNIT GAS KICK 3132' = 308 UNIT COAL KICK INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRED CLAY WITH MINOR SANDS AFTER 2700' SMALL COALS 5·10" THICK PRESENT LITHOLOGY 100% CLAY @ 3350' DAILY ACTIVITY DRILL OUT SHOE TRACK AND 20' OF NEW FORMATION AND RUN LEAK OFF TEST, 17.4 PPG, DRILL AHEAD TO 1700' = NO MUD LOSSES SUMMARY AFTER 1700', DRILL AND SLIDE AHEAD TO REPORT TIME. CONNECTION TIMES: HIGH = 28 MINS, LOW = 7 MINS AVE = 14 MINS. riG REPAIR ON PUMPS 52 MINS. Epoch Personel On Board= 4 Daily Cost $2325 Report by: LEES F. BROWNE JR. . file:/^ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HaDDVV allev5\Moming%20ReDorts\20040220.htm 4/27/2004 Daily Report Page 1 of 1 UNOCAL AFE #161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR DOUG NEIHAUS DATE Feb 21, 2004 DEPTH 4084.00 PRESENT OPERATION= RUNNING 7" CASING TIME 04:00 YESTERDAY 3356.00 24 Hour Footage 728 CASING INFORMATION 95/8" @ 978' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 4084' 3.79 317.72 4048.82' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 2RR 8.5 HYC DS-70FNPV 24313 983 4084 3101 13.8 NA TO DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 664.7 @ 3952.00 14.9 @ 3844.00 226.6 163.19691 ftIhr SURFACE TORQUE 4754 @ 3584.00 SLIDE @ 3683.00 1843.1 2660.45630 amps WEIGHT ON BIT 19 @ 3937.00 0 @ 4053.00 3.5 1.02396 Klbs ROTARY RPM 181 @ 3926.00 SLIDE @ 3683.00 91.2 150.21664 RPM PUMP PRESSURE 3260 @ 3952.00 1492 @ 4000.00 2707.8 2288.14551 psi DRILLING MUD REPORT DEPTH: 4084' MW 9.4 VIS 41 PV 11 YP 15 FL 10.6 Gels 7/15/21 CL- 32000 Fe 1.0 SOL 5.4 SO 0.15 OIL 0 MBL pH 8.4 Ca+ 440 CCI MWD SUMMARY .VAL TO TOOLS GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 158 @ 3889.00 8 @ 3467.00 47.7 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 31278 @ 3889.00 990 @ 3829.00 9052.0 CONNECTION GAS HIGH= TRACE ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG= TRACE PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 0 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS NORMAL GAS READING FOR THIS PART OF THE HOLE NO LARGE GAS KICKS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY TUFFACEOUS CLAY, SAND AND COAL PRESENT LITHOLOGY 4084' = SAND 30% CLAY 30% CARBONACEOUS SHALE 40% DAILY ACTIVITY DRILL FORMATION TO 4084', CIRCULATE HOLE CLEAN AND DROP CARBIDE = 9.5 BBLS OVER GAUGED HOLE, PULL OUT OF THE HOLE AND SUMMARY RIG UP CASING TOOLS, BEGIN TO RUN 7" CASING. NO RIG REPAIRS THE LAST 24 HOURS. CONNECTION TIMES: HIGH = 24 MINS, LOW = 11 MINS, AVE = 16.7 MINS. Epoch Personel On Board= 2 Daily Cost $2065 w/o SAMPLE CATCHERS Report by: LEES F. BROWNE JR. . file:/A \Dmltwo\c-drive\DMLDA T A \UNOCAL\HappvVallev5\Moming%20Reports\20040221.htm 4/27/2004 Daily Report Page 1 of 1 UNOCAL AFE#161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR DOUG NEIHAUS DATE Feb 22, 2004 DEPTH 4084.00 PRESENT OPERATION= SKID TO HAPPY VALLEY #3 TIME 04:00 YESTERDAY 4084.00 24 Hour Footage 0 CASING INFORMATION T' @ 4084 DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 @ 0 0 @ 0 0 0 ftlhr SURFACE TORQUE 0 @ 0 0 @ 0 0 0 amps WEIGHT ON BIT 0 @ 0 0 @ 0 0 0 Klbs ROTARY RPM 0 @ 0 0 @ 0 0 0 RPM PUMP PRESSURE 0 @ 0 0 @ 0 0 0 psi DRILLING MUD REPORT DEPTH: 4084 MW 9.3 VIS 40 PV 9 YP 15 FL 10.4 Gels 6/12/16 CL- 30000 FC 1.0 SOL 4.9 SD 0.15 OIL 0 MBL pH 8.4 Ca+ 440 CCI MWD SUMMARY INTERVAL TO S GA SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 25TG @ 4084.00 2 @ 4084.00 3 CIRC TRIP GAS= 25 @ 4084' CUTTING GAS 0 @ 0 o @ 0 0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1 ) 0 @ 0 0 @ 0 0 CONNECTION GAS HIGH= 0 ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG= 0 PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 0 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY CEMENT PRESENT LITHOLOGY DAILY ACTIVITY SUMMARY FINISH RUNNING CASING (7") AND CEMENT HAPPY VALLEY #4, NIPPLE DOWN AND SKID RIG TO HAPPY VALLEY #3 Epoch Personel On Board= 4 Daily Cost $2325 Report by: LEES F. BROWNE JR. . file:/ ^ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HappvV allev5\Moming%20Reports\20040222.htm 4/27/2004 Daily Report Page 1 of 1 UNOCAl AFE #161717 DAIL Y WELLSITE REPORT U EPOCH .appy Valley #3 REPORT FOR DATE Mar 13, 2004 DEPTH 4085.00 PRESENT OPERATION= PREP TO DRIL HAPPY VALLEY #4 TIME 03:00 YESTERDAY 4085.00 24 Hour Footage 0 CASING INFORMATION 3.5" TUBING @ 11344' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 @ 0 0 @ 0 0 0 ftlhr SURFACE TORQUE 0 @ 0 0 @ 0 0 0 amps WEIGHT ON BIT 0 @ 0 0 @ 0 0 0 Klbs ROTARY RPM 0 @ 0 0 @ 0 0 0 RPM PUMP PRESSURE 0 @ 0 0 @ 0 0 0 psi DRILLING MUD REPORT DEPTH: 11344' MW 9.5 VIS 185 PV 29 YP 13 FL Gels 14/22/24 CL- Fe 0/2 SOL 9.4 SO 0.20 OIL 76% VOL MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO S GA SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 0 @ 0 0 @ 0 0 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1 ) 0 @ 0 0 @ 0 0 CONNECTION GAS HIGH= 0 ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG= 0 PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 0 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY DAILY ACTIVITY SUMMARY FINISH TESTING TUBING AND SKID TO HAPPY VALLEY #4 Epoch Personel On Board= 4 Daily Cost $2385 Report by: LEES F. BROWNE JR. . file:/ ^ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HappvV allev5\Moming%20Reports\20040313A.htm 4/2712004 Daily Report Page 1 of 1 UNOCAL AFE #161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR D. FOWLER DATE Mar 14, 2004 DEPTH 4106.00 PRESENT OPERATION= LEAK OFF TEST TIME 03:00 YESTERDAY 4085.00 24 Hour Footage 21 CASING INFORMATION 7"@ 4077' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 4106 4071 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 6 6.125" HTC HCM406 7102176 4084' 0.2 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 166.8 @ 4085.00 64.8 @ 4101.00 128.4 113.97430 ftIhr SURF.<\CE TORQUE 2596 @ 4085.00 328 @ 4101.00 1660.5 1534.04431 amps WEIGHT ON BIT 5 @ 4104.00 0 @ 4088.00 3.8 5.42321 Klbs ROTARY RPM 150 @ 4085.00 35 @ 4101.00 73.8 63.39027 RPM PUMP PRESSURE 2646 @ 4106.00 1724 @ 4100.00 2321.4 2646.03076 psi DRILLING MUD REPORT DEPTH: NA MW VIS PV YP FL Gels CL- ï=C SOL SD OIL MBL pH Ca+ CCI MWD SUMMARY .VAL TO TO LS GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 28 @ 4085.00 16 @ 4101.00 23.0 TRIP GAS= 0 @ SHOE CUTTING GAS 0 @ 4106.00 0 @ 4106.00 0.0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 5158 @ 4085.00 2828 @ 4101.00 4021.0 CONNECTION GAS HIGH= 0 ETHANE(C-2) 26 @ 4105.00 5 @ 4086.00 15.1 A VG= 0 PROPANE(C-3) 10 @ 4105.00 2 @ 4086.00 5.8 CURRENT 0 BUTANE(C-4) 49 @ 4097.00 25 @ 4101.00 41.8 CURRENT BACKGROUND/AVG 0 PENTANE(C-5) 5 @ 4086.00 0 @ 4105.00 2.9 HYDROCARBON SHOWS NO GAS OR HYDROCARBON SHOWS C-2 & C-4 READINGS ARE FROM OIL BASE MUD INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY TUFFACEOUS SILTSTONE AND CARBONACEOUS CLAYS PRESENT LITHOLOGY 4100' 90% TUFFACEOUS SILTSTONE, 10% CARBONACEOUS CLAY DAILY ACTIVITY PREP RIG TO DRILL AND MAKE UP BHA AND TRIP INTO THE HOLE, TAG CEMENT AT 3994', DRILL OUT CEMENT AND 20' OF NEW SUMMARY FORMATION, RUN LEAK OFF TEST. Epoch Personel On Board= 4 Daily Cost $2385 Report by: LEES F. BROWNE JR. . file:/í\ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HappvV allev5\Moming%20Reports\200403l4.htm 4/2712004 Daily Report Page 1 of 1 UNOCAL AFE #161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR D. FOWLER DATE Mar 15, 2004 DEPTH 6710.00 PRESENT OPERATION= DRILLING TIME 03:00 YESTERDAY 4106.00 24 Hour Footage 2604 CASING INFORMATION DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 6710 6669.63 6402' 6362.54' SURVEY DATA 6263.84 6303' 4.39 300.04 6051 3.84 306.77 6012.49 5798 3.89 310.19 5760.06' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 6.125" HTC HCM406 7102176 4084 16.4 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 336.8 @ 4478.00 12.8 @ 5089.00 191.8 258.14731 fUhr SURFACE TORQUE 5554 @ 4875.00 SLIDE @ 5108.00 2740.5 3505.80078 amps WEIGHT ON BIT 16 @ 4142.00 SLIDE @ 5156.00 4.2 2.69018 Klbs ROTARY RPM 84 @ 4470.00 SLIDE @ 4390.00 63.7 68.55425 RPM PUMP PRESSURE 3721 @ 6693.00 1599 @ 4773.00 3180.4 3555.49878 psi DRILLING MUD REPORT DEPTH: 6396' MW 9.2 VIS 75 PV 35 YP 3 FL Gels 10/17/20 CL- 0/2 SOL 9.3 SD 0.15 OIL 77% VOL MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 340 @ 5610.00 9 @ 4120.00 71.9 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMA TOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 67489 @ 5610.00 1652 @ 4120.00 14257.6 CONNECTION GAS HIGH= 0 ETHANE(C-2) 45 @ 6571.00 0 @ 4339.00 11.8 AVG= 0 PROPANE(C-3) 14 @ 4155.00 0 @ 6297.00 0.5 CURRENT 0 BUTANE(C-4) 96 @ 4486.00 0 @ 5901.00 13.6 CURRENT BACKGROUND/AVG 0 PENTANE(C-5) 14 @ 4488.00 0 @ 4546.00 0.7 HYDROCARBON SHOWS C-3 & C-4 FROM OIL BASE MUD / GAS SHOW FROM SAND @ 5700' INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION 5685 TO 5730 SANDSTONE/SAND BEFORE 55 DURING 305 AFTER 75 SILTY TO ASHY SAND/SANDSTONE LITHOLOGY TUFFACEOUS SILTSTONE WITH MEDIUM TO VERY FINE GRAIN SANDS SCATTERED THIN COALS AND VERY CARBONACEOUS SHALE. PRESENT LITHOLOGY 6710' = SANDSTONE 30% TUFFACEOUS SILTSTONE 70% DAILY ACTIVITY SUMMARY FINISH LEAK OFF TEST AND DRILL FORMATION Epoch Personel On Board= 4 Daily Cost $2385 Report by: LEES F. BROWNE JR. . file:/ ^ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HaDDvV allev5\Momin2:%20ReDorts\20040315 .htm 4/27/2004 Daily Report Page I of I UNOCAL AFE #161718 DAIL Y WELLSITE REPORT ~ EPOCH . Happy Valley #4 REPORT FOR D. FOWLER DATE Mar 16, 2004 DEPTH 8540.00 PRESENT OPERATION= DRILLING TIME 03:00 YESTERDAY 6710.00 24 Hour Footage 1830 CASING INFORMATION DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 8540' 8485' 8322' 8.10 302.00 8269.57' SURVEY DATA 301.20 8206.20' 8258' 7.96 8132' 7.57 301.4 7 8081.36' 8006' 7.57 302.08 7956.46' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 6.125" HTC HCM406 7102176 4084 32.2 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 369.8 @ 7999.00 4.3 @ 8199.00 190.2 52.83482 ftIhr SURFACE TORQUE 4721 @ 7046.00 SLIDE @ 7819.00 2507.7 0 amps WEIGHT ON BIT 8 @ 7212.00 SLIDE @ 7122.00 3.9 6.22892 Klbs ROTARY RPM 78 @ 7692.00 SLIDE @ 7760.00 50.8 0 RPM PUMP PRESSURE 4039 @ 7557.00 1926 @ 7045.00 3476.4 3189.31714 psi DRILLING MUD REPORT DEPTH: 8436' MW 9.1 VIS 72 PV 25 YP 10 FL Gels 9/17/20 CL- 0/2 SOL 8.5 SO 0.15 OIL 78% VOL. MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 387 @ 7720.00 10 @ 7389.00 79.9 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMA TOGRAPHY(ppm) SURVEY= 0 METHANE(C-1 ) 77227 @ 7789.00 1982 @ 7389.00 15551.0 CONNECTION GAS HIGH= 5 ETHANE(C-2) 98 @ 8460.00 0 @ 6783.00 20.9 AVG= 0-3 PROPANE(C-3) 14 @ 8476.00 0 @ 7764.00 1.2 CURRENT 0 BUTANE(C-4) 36 @ 7113.00 0 @ 8131.00 3.8 CURRENT BACKGROUND/AVG 25 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON GAS SHOW SAND SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION 7305 TO 7348 SAND/CONGLOMERATE SAND BEFORE 50 SAND/CONGLOMERATE SAND = COARSE LOWER TO VERY FINE UPPER, ASH AND SILT MATRIX DURING 298 MODERATE TO ABUNDANT SILT AND ASH MATRIX, MATRIX SUPPORT GRADING TO AFTER 45 GRAIN AT BASE FAIR POROSITY LITHOLOGY TUFFACEOUS SILTSTONE WITH VOLCANIC ASH INTERBEDDED, 5-10' COALS AND VERY SILTY ASHY SANDS PRESENT LITHOLOGY 8540' = 60% COAL, 30% CARBONACEOUS SHALE, 10% TUFFACEOUS SILTSTONE DAILY ACTIVITY DRILL FORMATION. CONNECTION TIMES = HIGH: 18 LOW: 9 AVERAGE: 12.8 OFF BOTTOM TIME 24 MINUTES WORKING HARD SPOTS SUMMARY AND ORIENTATING THE TOOL FACE. .Ch Personel On Board= 4 Daily Cost $2385 Report by: LEES F. BROWNE JR. file://\ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HappvV allev5\Moming%20ReDorts\20040316.htm 4/27/2004 Daily Report Page 1 of 1 UNOCAL AFE#161718 DAILY WELLSITE REPORT U EPOCH .HapPY Valley #4 REPORT FOR DATE Mar 17,2004 DEPTH 9350.00 PRESENT OPERATION= DRILLING TIME 03:00 YESTERDAY 8540.00 24 Hour Footage 810 CASING INFORMATION 7" @ 4077' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 9350' 9284.34 9143' 10.57 305.10 9080.86' SURVEY DATA 9.25 302.85 8955.76' 9016 8890' 9.07 298.84 8831.37' 8763' 8.74 302.19 8705.90' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 6.125" HTC HCM406 7102176 4084' 49.9 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 226.1 @ 8764.00 5.5 @ 9134.00 78.4 16.20735 ftIhr SURFACE TORQUE 4756 @ 8942.00 SLIDE @ 8543.00 2879.8 2794.31519 amps WEIGHT ON BIT 11 @ 9247.00 SLIDE @ 8842.00 4.9 10.18204 Klbs ROTARY RPM 91 @ 8619.00 SLIDE @ 8540.00 60.2 60.94112 RPM PUMP PRESSURE 3716 @ 8719.00 2341 @ 9064.00 3281.9 3096.69556 psi DRILLING MUD REPORT DEPTH: 8840' MW 9.2 VIS 73 PV 27 YP 9 FL Gels 9/15/18 CL- 0/2 SOL 8.4 SO 0.15 OIL 78% VOL. MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 449 @ 8756.00 8 @ 8683.00 53.1 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 94763 @ 8756.00 1610 @ 8618.00 10618.3 CONNECTION GAS HIGH= 3 ETHANE(C-2) 1009 @ 9295.00 0 @ 8619.00 57.8 AVG= 0-2 PROPANE(C-3) 30 @ 9197.00 0 @ 8619.00 6.5 CURRENT 0 BUTANE(C-4) 72 @ 9108.00 0 @ 9256.00 4.1 CURRENT BACKGROUND/AVG 25 PENTANE(C-5) 26 @ 9108.00 0 @ 9178.00 0.8 HYDROCARBON GAS SHOW SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION 9270 TO 9300' CONGLOMERATE SAND ROP BEFORE 35 DURING 154 BEFORE 21 CONGLOMERATE SAND WITH MATRIX SUPPORT AT TOP AFTER 35 SAND BODY SEEMS TO BE THREE BENCHED DURING 158 BECOMING GRAIN AND MATRIX SUPPORT AT BASE; LAYERS AFTER 23 BECOMING ASHY AT BASE. LITHOLOGY TUFFACEOUS SILTS AND SAND WITH COAL AND CARBONACEOUS SHALES PRESENT LITHOLOGY 9350' = 50% DEVITRIFIED ASH, 50% TUFFACEOUS SILTSTONE DAILY ACTIVITY DRILL FORMATION THE LAST 24 HRS. CONNECTION TIMES = HIGH: 18 LOW: 11 AVERAGE: 14.9 MINS NO RIG DOWN TIME: USUAL TIME SUMMARY FOR CONNECTIONS AND ORIENTATING TO SLIDE. Epoch Personel On Board= 4 Daily Cost $2385 . Report by: LEES F. BROWNE JR. file:/ ^ \Dmltwo\c-drive\DMLDA T A \UNOCAL\HannvV allev5\Momin!!%20Renorts\20040317 .htm 4/27/2004 Daily Report Page I of I UNOCAL AFE #161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR D. NEIHAUS DATE Mar 18, 2004 DEPTH 9950.00 PRESENT OPERATION= DRILLING TIME 03:00 YESTERDAY 9350.00 24 Hour Footage 600 CASING INFORMATION DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 9950' 9870.80' 9647 12.33 306.67 9574.79' SURVEY DATA 9451.64' 9521 12.11 306.02 9395 11.44 304.33 9328.30 9269 10.84 2304.71 9204.67' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 6.125" HTC HCM406 7102176 4084 70.0 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 142.1 @ 9823.00 5.5 @ 9670.00 44.3 34.09493 fVhr SURFACE TORQUE 4513 @ 9791.00 1137 @ 9696.00 3311.9 2964.82715 amps WEIGHT ON BIT 12 @ 9358.00 1 @ 9845.00 7.1 2.34980 Klbs ROTARY RPM 72 @ 9567.00 24 @ 9380.00 57.3 43.72479 RPM PUMP PRESSURE 3690 @ 9571.00 2158 @ 9696.00 3103.8 2692.31372 psi DRILLING MUD REPORT DEPTH: 9820' MW 9.1 VIS 73 PV 25 YP 9 FL Gels 9/15/17 CL- SOL 8.3 SD 0.15 OIL 78% MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 191 @ 9830.00 9 @ 9483.00 35.8 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 91825 @ 9433.00 2164 @ 9449.00 7782.3 CONNECTION GAS HIGH= 0 ETHANE(C-2) 1599 @ 9433.00 3 @ 9483.00 80.8 AVG= 0 PROPANE(C-3) 117 @ 9433.00 0 @ 9495.00 9.3 CURRENT 0 BUTANE(C-4) 100 @ 9664.00 2 @ 9819.00 8.3 CURRENT BACKGROUND/AVG 30 PENTANE(C-5) 34 @ 9666.00 0 @ 9733.00 1.9 HYDROCARBON GAS SHOW T140 SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION 9850 TO 9880' SANDSTONE AND SAND ROP BEFORE BEFORE 18 COARSE LOWER TO FINE LOWER; WELL DEVELOPED SPHERICITY; MODERATE 12 DURING 80 AFTER 10 DURING 95 AFTER TO ABUNDANT SILT AND ASH MATRIX: GRAIN AND MATRIX SUPPORT; POOR 23 TO FAIR POROSITY LITHOLOGY TUFFACEOUS SILTSTONE WITH MINOR COALS (10' THICK) AND SANDSTONE BEDS PRESENT LITHOLOGY 9950" = 50% ASH, 40% SILT, 10% CARBONACEOUS SHALE. DAILY ACTIVITY DRILL FORMATION. CONNECTION TIMES: HIGH = 18, LOW = 15, AVERAGE = 15.8 NO RIG REPAIR OR DOWN TIME. USUAL WORKING OF SUMMARY DRILL PIPE TO CHECK FOR HOLE PULL AFTER DRILLING COALS. .Ch Personel On Board= 4 Daily Cost $2385 Report by: LEES F. BROWNE JR. file://\ \Dmltwo\c-drive\DMLDA T A \UNOCAL\HappvV allev5\Moming%20Reports\200403I 8.htm 4/27/2004 Daily Report Page 1 of 1 UNOCAL AFE #161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR D. NEIHAUS DATE Mar 19. 2004 DEPTH 10580.00 PRESENT OPERATION= DRILLING TIME 03:00 YESTERDAY 9950.00 24 Hour Footage 630 CASING INFORMATION 7"@ 4077' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH 1 0580' 10477' 10404 15.81 312.42 1 0308.29 SURVEY DATA 10278' 311.99 1 0186.89' 15.22 10152 14.73 309.97 1 0065.16' 10026' 14.15 310.59 9943.14' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED 3 6.125" HTC HCM406 7102176 4084 90.2 DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 172.4 @ 10327.00 4.0 @ 10422.00 47.2 28.71094 fVhr SURFACE TORQUE 4537 @ 10153.00 932 @ 10074.00 3533.9 2203.96240 amps WEIGHT ON BIT 13 @ 10128.00 1 @ 10306.00 4.4 2.61669 Klbs ROTARY RPM 67 @ 10108.00 16 @ 10137.00 49.8 27.82307 RPM PUMP PRESSURE 3317 @ 10244.00 1987 @ 10074.00 2841.0 2179.47339 psi DRILLING MUD REPORT DEPTH: 10459' MW 9.2 VIS 77 PV 26 YP 8 FL Gels 8/15/18 CL- 0/2 SOL 11.4 SO 0.15 OIL 76% MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO TOOLS GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 147 @ 10429.00 5 @ 10164.00 27.8 TRIP GAS= 0 CUTTlNG GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMA TOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 61671 @ 10097.00 1263 @ 10164.00 6784.2 CONNECTION GAS HIGH= 0 ETHANE(C-2) 235 @ 10097.00 0 @ 9979.00 45.4 A VG= 0 PROPANE(C-3) 56 @ 10097.00 0 @ 10036.00 10.2 CURRENT 0 BUTANE(C-4) 4 @ 10184.00 0 @ 10189.00 0.0 CURRENTBACKGROUNDMVG 18 PENTANE(C-5) 0 @ 10580.00 0 @ 10580.00 0.0 HYDROCARBON SHOWS NO GAS SHOWS OR "KICKS" THE LAST 24 HRS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY TUFFACEOUS SILTSTONE WITH INTERBEDDED ASH AND THIN COALS. SAND AND SANDSTONE BEDS PRESENT LITHOLOGY 10580' = 50% SILT, 30% ASH, 20% VERY CARBONACEOUS SHALE DAILY ACTIVITY DRILL FORMATION. CONNECTION TIMES: HIGH = 15, LOW = 8, AVERAGE = 11.6 NO RIG REPAIRS. ONLY OFF BOTTOM TO MAKE SUMMARY CONNECTIONS AND TO "WORK THE BIT" IN SLOW DRILLING. Epoch Personel On Board= 4 Daily Cost $2385 Report by: LEES F. BROWNE JR. . file://\ \Dmltwo\c-drive\DMLDAT A \UNOCAL\HaDDvVallev5\Momin2:%20ReDorts\20040319.htm 4/27/2004 Daily Report Page 1 of 1 UNOCAL AFE #161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR D. NIENHAUS , DATE Mar 20,2004 DEPTH 10620.00 PRESENT OPERATION= RUNNING WIRE LINE LOGS TlME 03:00 YESTERDAY 10580.00 24 Hour Footage 40 CASING INFORMATION 7"@ 4077' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 10620 10517' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS' IN OUT FOOTAGE HOURS T/B/C PULLED 3 6.125" HTC HCM406 7102176 4084 105620 6536' 91.4 TO DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 51.2 @ 10617.00 4.4 @ 10586.00 24.8 30.53654 ftIhr SURFACE TORQUE 3997 @ 10604.00 2203 @ 10580.00 3630.3 3665.12476 amps WEIGHT ON BIT 10 @ 10593.00 2 @ 10580.00 7.3 6.49832 Klbs ROTARY RPM 49 @ 10615.00 27 @ 10580.00 39.3 48.86777 RPM PUMP PRESSURE 2915 @ 10604.00 2179 @ 10580.00 2847.2 2810.84985 psi DRILLING MUD REPORT DEPTH: 10620' MW 9.2 VIS 79 PV 25 YP 8 FL Gels 8/16/19 CL- FC 0/2 SOL 11.4 SD 0.15 OIL 75% MBL pH Ca+ CCI MWD SUMMARY _VAL TO T S GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 25 @ 10592.00 11 @ 10612.00 15.9 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 55 @ 10620' CHROMA TOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 6534 @ 10592.00 2146 @ 10586.00 3798.1 CONNECTION GAS HIGH= 0 ETHANE(C-2) 0 @ 10620.00 0 @ 10620.00 0.0 AVG= 0 PROPANE(C-3) 21 @ 10592.00 6 @ 10583.00 11.7 CURRENT 0 BUTANE(C-4) 0 @ 10620.00 0 @ 10620.00 0.0 CURRENT BACKGROUND/AVG 0 (CIRC THROUGH PITS) PENTANE(C-5) 0 @ 10620.00 0 @ 10620.00 0.0 HYDROCARBON SHOWS NO SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY DAILY ACTIVITY DRILL FORMATION TO 10620', CIRCULATE HOLE CLEAN, WIPER GAS 55 UNITS AT TD, PULL OUT OF THE HOLE AND RIG UP LOGGING SUMMARY TOOLS, RUN WIRE LINE LOGS Epoch Personel On Board= 2 Daily Cost $2095 w/o sample catchers Report by: LEES F. BROWNE JR. . file://\ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HappvVallev5\Moming%20Reports\20040320.htm 4/27/2004 Daily Report Page I of 1 UNOCAL AFE #161718 DAILY WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR D. NIENHAUS DATE Mar 21, 2004 DEPTH 10620.00 PRESENT OPERATION= POOH AFTER RUNNING WIRE LINE LOGS TIME 04:30:30 YESTERDAY 10620.00 24 Hour Footage 0 . CASING INFORMATION 7' @ 4077' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 10620' 10516 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 @ 0 0 @ 0 0 0 fVhr SURFACE TORQUE 0 @ 0 0 @ 0 0 0 amps WEIGHT ON BIT 0 @ 0 0 @ 0 0 0 Klbs ROTARY RPM 0 @ 0 0 @ 0 0 0 RPM PUMP PRESSURE 2810 @ 0 0 @ 0 0 0 psi DRILLING MUD REPORT DEPTH: 10620' MW 9.2 VIS 120 PV 29 YP 8 FL Gels 8/17/20 CL- FC 0/2 SOL 9.4 SD 0.15 OIL 77% MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 223 @ 10620.00 2 @ 10620.00 10 TRIP GAS= 223 @ 10620 CUTTING GAS 0 @ 0 o @ 0 0 WIPER GAS= 94 @ 10620 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1 ) 0 @ 0 0 @ 0 0 CONNECTION GAS HIGH= 0 ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG= 0 PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 3 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY DAILY RUN WIRE LINE LOGS INTO THE HOLE. WIRE LINE TOOL STOPPED AT 8500'. RIG UP TO RUN LOGS ON DRILL PIPE. RUN IN THE HOLE WITH ACTIVITY DRILL PIPE TO 10614' CIRCULATE BOTTOMS UP TWICE. TRIP GAS = 223 UNITS. PULL TWO STANDS AND CIRCULATE OUT 94 UNITS OF WIPER SUMMARY GAS. BEGIN LOGGING THE HOLE PULLING OUT SLOWLY. FINISH LOGGING AT 10:20 PM AND BEGIN TO PULL OUT OF THE HOLE WITH DRILL PIPE. Epoch Personel On Board= 2 Daily Cost $2095 w/o sample catchers Report by: LEES F. BROWNE JR. . file:/ ^ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HaDDvV allev5\Momin!!%20ReDorts\20040321.htm 4/2712004 Daily Report Page I of I UNOCAL AFE #161718 DAIL Y WELLSITE REPORT g EPOCH . Happy Valley #4 REPORT FOR D. NIENHAUS DATE Mar 22,2004 DEPTH 10620.00 PRESENT OPERATION= WIRE LINE LOGGING TIME 04:30:30 YESTERDAY 10620.00 24 Hour Footage 0 CASING INFORMATION 7"@4077' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 10620' 10516' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 @ 0 0 @ 0 0 0 ftIhr SURFACE TORQUE 0 @ 0 0 @ 0 0 0 amps WEIGHT ON BIT 0 @ 0 0 @ 0 0 0 Klbs ROTARY RPM 0 @ 0 0 @ 0 0 0 RPM PUMP PRESSURE 2810 @ 0 0 @ 0 0 0 psi DRILLING MUD REPORT DEPTH: 10620' MW 9.2 VIS 110 PV 28 YP 10 FL Gels 9/19/21 CL- FC 0/2 SOL 9.4 SD 0.15 OIL 77% MBL pH Ca+ CCI MWD SUMMARY IN RVAL TO GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 1 (CIRC @ PITS) @ 10620.00 o @ 10620.00 0.5 TRIP GAS= 0 CUTTING GAS 0 @ 0 o @ 0 0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 0 @ 0 0 @ 0 0 CONNECTION GAS HIGH= 0 ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG= 0 PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 0 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY DAILY ACTIVITY SUMMARY FINISH PULLING OUT OF THE HOLE WITH DRILL PIPE LOGGING. RIG UP AND RUN WIRE LINE LOGS. Epoch Personel On Board= 2 Daily Cost $2095 w/o sample catchers Report by: LEES F. BROWNE JR. . file://\ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HaoovV allev5\Momin!l%20Reoorts\20040322. htm 4/27/2004 Daily Report Page 1 of 1 UNOCAL AFE #161718 DAIL Y WELLSITE REPORT U EPOCH . Happy Valley #4 REPORT FOR D. NIENHAUS DATE Mar 23,2004 DEPTH 10620.00 PRESENT OPERATION= CIRC w/TUBING ON BOTTOM TIME 04:30:30 YESTERDAY 10620.00 24 Hour Footage 0 CASING INFORMATION 3.5"@ 10620' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 10620' 10517 BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 @ 0 0 @ 0 0 0 fUhr SURFACE TORQUE 0 @ 0 0 @ 0 0 0 amps WEIGHT ON BIT 0 @ 0 0 @ 0 0 0 Klbs ROTARY RPM 0 @ 0 0 @ 0 0 0 RPM PUMP PRESSURE 0 @ 0 0 @ 0 0 0 psi DRILLING MUD REPORT DEPTH: 10620' MW 9.2 VIS 110 PV 29 YP 8 FL Gels 8/19/22 CL- FC 0/2 SOL 9.4 SO 0.15 OIL 77% VOL MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 244 @ 10620' 2 @ 10620 8 TRIP GAS= 244 @ 10620' CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMA TOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 0 @ 0 0 @ 0 0 CONNECTION GAS HIGH= 0 ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG= 0 PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 8 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY DAILY ACTIVITY SUMMARY COMPLETE WIRE LINE LOGGING AND RIG UP AND RUN 3.5" TUBING TO BOTTOM AND CIRCULATE OUT 244 UNITS OF TRIP GAS. Epoch Personel On Board= 2 Daily Cost $2095 w/o sample catchers Report by: LEES F. BROWNE JR. . file:/I\ \Dmltwo\c-drive\DMLDA T A \UNOCAL \HaDDvV allev5\MominQ:%20Renorts\20040:i 21. htm 41? 7 /?004 Daily Report Page 1 of 1 UNOCAL AFE#161718 DAIL Y WELLS/TE REPORT g EPOCH Happy Valley #4 .REPORT FOR D. NIENHAUS DATE Mar 24,2004 DEPTH 10620.00 PRESENT OPERATION= NIPPLE DOWN AND SKID RIG TIME 04:00 YESTERDAY 10620.00 24 Hour Footage 0 CASING INFORMATION 3.5"@ 10620' DEPTH INCLINATION AZIMUTH VERTICAL DEPTH SURVEY DATA 1 0620' 10516' BIT INFORMATION INTERVAL CONDITION REASON NO. SIZE TYPE SIN JETS IN OUT FOOTAGE HOURS T/B/C PULLED DRILLING PARAMETERS HIGH LOW AVERAGE CURRENT AVG RATE OF PENETRATION 0 @ 0 0 @ 0 0 0 fVhr SURFACE TORQUE 0 @ 0 0 @ 0 0 0 amps WEIGHT ON BIT 0 @ 0 0 @ 0 0 0 Klbs ROTARY RPM 0 @ 0 0 @ 0 0 0 RPM PUMP PRESSURE 0 @ 0 0 @ 0 0 0 psi DRILLING MUD REPORT DEPTH: 10620' MW 9.2 VIS 90 PV 29 YP 9 FL Gels 8/19/21 CL- FC 0/2 SOL 9.4 SD 0.15 OIL 77% MBL pH Ca+ CCI MWD SUMMARY INTERVAL TO GAS SUMMARY(units) HIGH LOW AVERAGE DITCH GAS 0 @ 0 0 @ 0 0 TRIP GAS= 0 CUTTING GAS 0 @ 0 0 @ 0 0 WIPER GAS= 0 CHROMATOGRAPHY(ppm) SURVEY= 0 METHANE(C-1) 0 @ 0 0 @ 0 0 CONNECTION GAS HIGH= 0 ETHANE(C-2) 0 @ 0 0 @ 0 0 AVG= 0 PROPANE(C-3) 0 @ 0 0 @ 0 0 CURRENT 0 BUTANE(C-4) 0 @ 0 0 @ 0 0 CURRENT BACKGROUND/AVG 0 PENTANE(C-5) 0 @ 0 0 @ 0 0 HYDROCARBON SHOWS INTERVAL LITHOLOGY/REMARKS GAS DESCRIPTION LITHOLOGY PRESENT LITHOLOGY DAILY ACTIVITY TEST CEMENT LINES AND PUMP CEMENT JOB TO 3.5" TUBING, PRESSURE TEST BACK SIDE AND NIPPLE DOWN HAPPY VALLEY SUMMARY #4. Epoch Personel On Board= 4 Daily Cost $2385 w/ sample catchers back returning today Report by: LEES F. BROWNE JR. . file:/ /\\Dmltwo\c-drive\DMLDA T A \UNOCAL \HappvV allev5\Moming%20Reuorts\20040324. htm 4/?7/?004 FINAL LOGS