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Home My WebLink About2008 Deep Creek UnitChevron Kevin A. Tabler Union Oil Company of California Land/Governmental 3800 Centerpoint Dr., Suite 100 Affairs Manager Anchorage, AK 99503 aft— —0.0 Tel 907 263 7600 Fax 907 263 7698 Email tablerk@chevron.com RECEIVED APR 0 3 2009 April 2, 2009 `'iiaska Oil & Gas Cons. Corwriission Anchorage . -- . , Daniel Seamount, Chairman Alaska Oil & Gas Conservation Commission 333 W. 7th Avenue, Suite 100 Anchorage, Alaska 99501-3539 DEEP CREEK UNIT HAPPY VALLEY FIELD STATE OF ALASKA 2008 ANNUAL RESERVOIR REVIEW Dear Commissioner Seamount: In accordance with Conservation Order No. 553, Union Oil Company of California, as Operator, respectfully submits the following Annual Reservoir Review for the Happy Valley Field. This is the 4th Annual Reservoir Review. This Review corresponds to events during the 2008 calendar year. The Happy Valley Field has been on production since November 2004. We ask that data provided in Appendix C be kept confidential as it contains proprietary reservoir information that could be used by competitors in the region. Production Update As of December 31St, 2008, the cumulative production from the Happy Valley field is 11,884,053 MCFG and 39,714 BW. Production is from seven (7) wells: a. HV -A01 - Lower Tyonek Producer. 300 psig FTP. b. HV -A02 - Lower Tyonek Producer. Current rate —1.1 MMcf/d & 1 bwpd, at Current rate —0.5 MMcf/d & 7 bwpd, at Union Oil Company of California / A Chevron Company http://www.chevron.com 2008 Annual Reservoir Review Happy Valley Field April 2, 2009 Attached in Appendix A are production plots for each well. Reservoir Pressure There are currently several different formations and numerous sand intervals open to production at Happy Valley. Each interval &/or formation has its own average reservoir pressure. Because the HV -A10 well produces dry gas with no fluid from the Tyonek T-17 and T-10 intervals, it has been an excellent well to monitor reservoir pressure and has been referenced in past Annual Reservoir Reviews. The average reservoir pressure in the Tyonek T-17 and T-10 intervals in the HV - A10 wellbore was estimated to be approximately 1,227 psia, as of 1/1/09. This pressure is based upon combined material balance P/Z versus cumulative gas production data for the T-17 and T-10 intervals and corresponds to the 6700' TVD datum referenced in CO #553. The P/Z versus cumulative gas production plot for T-17 & T-10 intervals is shown in Appendix C. Note that in addition to the pressure measurements from the HV -A10 wellbore, the plot also contains the initial reservoir pressure from the T-17 completion in the HV - B13 well. This HV -B13 pressure falls right on the P/Z versus cumulative gas trend previously established from the HV -A10 production. The Upper Tyonek T-17 interval in the HV -B13 wellbore was completed and tested in June 2008 and was found to have an average reservoir pressure of 1,643 psia (at a reservoir datum depth of 6,700' TVD). Cumulative Production The cumulative gas volumes sub -divided by well and formation, through 12-31- 2008 are as follows: Union Oil Company of California / A Chevron Company http://www.chevron.com 300 psig FTP. c. HV -A08 - Beluga and Upper Tyonek Producer. Current rate —0.6 MMcf/d & 0 bwpd, at 300 psig FTP. d. HV -A09 - Upper Tyonek Producer. Current rate —1.1 MMcf/d & 0 bwpd, at 310 psig FTP. e. HV -A10 - Upper Tyonek Producer. Current rate —2.2 MMcf/d & 0 bwpd, at 340 psig FTP. f. HV -A11 - Upper Tyonek Producer. Current rate —0.1 MMcf/d & 0 bwpd, at 200 psig FTP. g. HV -11313 - Upper Tyonek Producer. Current rate —0.2 MMcf/d & 0 bwpd, at 275 psig FTP. Attached in Appendix A are production plots for each well. Reservoir Pressure There are currently several different formations and numerous sand intervals open to production at Happy Valley. Each interval &/or formation has its own average reservoir pressure. Because the HV -A10 well produces dry gas with no fluid from the Tyonek T-17 and T-10 intervals, it has been an excellent well to monitor reservoir pressure and has been referenced in past Annual Reservoir Reviews. The average reservoir pressure in the Tyonek T-17 and T-10 intervals in the HV - A10 wellbore was estimated to be approximately 1,227 psia, as of 1/1/09. This pressure is based upon combined material balance P/Z versus cumulative gas production data for the T-17 and T-10 intervals and corresponds to the 6700' TVD datum referenced in CO #553. The P/Z versus cumulative gas production plot for T-17 & T-10 intervals is shown in Appendix C. Note that in addition to the pressure measurements from the HV -A10 wellbore, the plot also contains the initial reservoir pressure from the T-17 completion in the HV - B13 well. This HV -B13 pressure falls right on the P/Z versus cumulative gas trend previously established from the HV -A10 production. The Upper Tyonek T-17 interval in the HV -B13 wellbore was completed and tested in June 2008 and was found to have an average reservoir pressure of 1,643 psia (at a reservoir datum depth of 6,700' TVD). Cumulative Production The cumulative gas volumes sub -divided by well and formation, through 12-31- 2008 are as follows: Union Oil Company of California / A Chevron Company http://www.chevron.com 2008 Annual Reservoir Review Happy Valley Field April 2, 2009 Reservoir Summary Beluga - The Beluga formation is currently open in only the HV -A8 wellbore. The HV -A8 well is also producing from the Upper Tyonek formation. Through downhole measurements, it has been determined that 40% of the gas produced from the HV - A8 is coming from the Beluga formation. Through December, 2008, the cumulative production from the Beluga is 0.551 BCF gas and 30,866 BW. Potential uphole Beluga pay exists in the HV -A9 and HV -A10 wells and may be added as reservoir management allows. Two wells were drilled from Pad B in 2007 (HV -B12 & HV - B13) which both penetrated the Beluga reservoirs. Initial log analysis indicates Beluga pay in both wells but neither well has been completed in the Beluga at the time of this report. Additional offset locations may exist for future development from Pad B. Upper Tyonek - The Upper Tyonek formation is currently open in the HV -A8, HV - A9, HV -A10, HV -A11, and HV -1313 wellbores. The cumulative production from the Upper Tyonek is 7.897 BCF gas and 1,214 BW. Additional potential Upper Tyonek pay exists in both the HV -A9 and HV -A10 wells. The two wells drilled from the B Pad in 2007, HV -1312 & HV -1313, both appear to have pay in the Upper Tyonek reservoirs. As of this report, HV -1313 has been completed in several Upper Tyonek sands and was produced for three (3) months in 2008, prior to facility completion at the B Pad. Additional offset locations may exist for future development from Pad B. Lower Tyonek - The Lower Tyonek formation is currently open in the HV -A1 and HV -A2 wellbores. The cumulative production from the Lower Tyonek is 3.436 BCF gas and 7,634 BW. The Lower Tyonek has been tested in HV -A3, HV -A4, HV -A6, HV -A7, and HV -A11. Economically producible gas in the Lower Tyonek has only been found in wells HV -A1 and HV -A2. One well was drilled in 2007, HV -1312, that penetrated the Lower Tyonek reservoirs. Initial log analysis indicates Lower Tyonek pay but the well has not been completed at the time of this report. Union Oil Company of California / A Chevron Company http://www.chevron.com Beluga Upper Tyonek Lower Tyonek HV -A01 2,943,058 HV -A02 493,366 HV -A08 550,836 826,253 HV -A09 2,029 806 HV -A10 4,895,229 HV -A11 101,010 HV -1313 44,495 Cum Gas Volume MCF 550,836 7,896,793 3,436,424 Reservoir Summary Beluga - The Beluga formation is currently open in only the HV -A8 wellbore. The HV -A8 well is also producing from the Upper Tyonek formation. Through downhole measurements, it has been determined that 40% of the gas produced from the HV - A8 is coming from the Beluga formation. Through December, 2008, the cumulative production from the Beluga is 0.551 BCF gas and 30,866 BW. Potential uphole Beluga pay exists in the HV -A9 and HV -A10 wells and may be added as reservoir management allows. Two wells were drilled from Pad B in 2007 (HV -B12 & HV - B13) which both penetrated the Beluga reservoirs. Initial log analysis indicates Beluga pay in both wells but neither well has been completed in the Beluga at the time of this report. Additional offset locations may exist for future development from Pad B. Upper Tyonek - The Upper Tyonek formation is currently open in the HV -A8, HV - A9, HV -A10, HV -A11, and HV -1313 wellbores. The cumulative production from the Upper Tyonek is 7.897 BCF gas and 1,214 BW. Additional potential Upper Tyonek pay exists in both the HV -A9 and HV -A10 wells. The two wells drilled from the B Pad in 2007, HV -1312 & HV -1313, both appear to have pay in the Upper Tyonek reservoirs. As of this report, HV -1313 has been completed in several Upper Tyonek sands and was produced for three (3) months in 2008, prior to facility completion at the B Pad. Additional offset locations may exist for future development from Pad B. Lower Tyonek - The Lower Tyonek formation is currently open in the HV -A1 and HV -A2 wellbores. The cumulative production from the Lower Tyonek is 3.436 BCF gas and 7,634 BW. The Lower Tyonek has been tested in HV -A3, HV -A4, HV -A6, HV -A7, and HV -A11. Economically producible gas in the Lower Tyonek has only been found in wells HV -A1 and HV -A2. One well was drilled in 2007, HV -1312, that penetrated the Lower Tyonek reservoirs. Initial log analysis indicates Lower Tyonek pay but the well has not been completed at the time of this report. Union Oil Company of California / A Chevron Company http://www.chevron.com 2008 Annual Reservoir Review Happy Valley Field April 2, 2009 Pending Projects There are no plans to drill any new wells at Happy Valley during the 2009 calendar year. Work will focus on completing and bringing on line the HV -B12 and HV -B13 wells on the B Pad. One or more of the completions may involve fracture stimulating certain Tyonek intervals. Testing and Monitoring The Happy Valley wells are tested regularly and reported monthly. In addition to the routine wellbore monitoring, a 4 -point modified isochronal test was conducted on the HV -B13 well. This test was conducted on 6/11/08, following the initial completion in the Tyonek T-17 interval. A "Gas Well Open Flow Potential Test Report" was submitted to the AOGCC on 2/23/08. No other shut-in pressure measurements were taken during 2008. Surveys and diagnostic wireline operations conducted during the year are as follows: • HV -A02 - Slickline work and set patches across Tyonek T-80 (successful water shut-off) (Nov. '08) • HV -A08 - Ran production logs looking for water zones (Nov. '08) • HV -B12 - Ran RST log (Nov. '08) • HV -B13 - Ran RST log (Nov. '08) Surface Safety Valve Testing The SSV's were tested on May 5t", 2008 and November 3rd, 2008. These tests were witnessed by Jeff Jones and Bob Noble, respectively for the AOGCC. Currently, the HV SSV's are operating with approved tests on all SSV's. The SSV test results for 2008 are attached in Appendix B. Please direct any questions regarding this annual reservoir review to Paul Winslow, Reservoir Engineer, at 263-7629. Sinc ely, A vin A. Tabler Attachments Union Oil Company of California / A Chevron Company http://www.chevron.com 2008 Annual Reservoir Review Happy Valley Field April 2, 2009 APPENDIX A Happy Valley Field Well Production Plots Union Oil Company of California / A Chevron Company http://www.chevron.com APPENDIX A Happy Valley #1 - Production History 10000 --- --- --- --- --- --- --- --- --- ----------- -------------------- --- --- --- --- --- --- --- - --- --- --- --- --- --- -------- --- --- --------------------------------------------------------------- --- --- --- --- --- ------- -------------------- --- --- - __ _ - - - - ♦Gas Rate LM.y --- --- --- --- --- --- --- ----------- --- --- --- --- --- --- - -- --- ----------- --- ------- -------------------- -------------------- --- --- --- --- - - - - ♦ FTP - - Q .r - - --- --- --- --- --- --- --- --- --- ------- -------------------- --- --- --- --- - - - d --- --- --- --- - L 0.N N tip d L a a� 3 H c 1000 --- --- --- --- --- --- --- --- --- --- ------- ---------------- --- --- --- --- --- --- --- --- - -------- -- 3--------------- 0LL --- --- --- --- --- ------------ - OW ----------------------------------- --- ------------ --------------------------------- ------------------------ --- --- --- --- - a------------- ----------------------------------------------- - ----------------------------------------------------- ea o: c0-------- N :7 100 Ln U')U-)Ln U') (.0 co co to co to r� r� 00 00 00 00 00 00 C)rn 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N N N N N N N N N N N N N N N N N N N N N N N N N \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ M LO I, -m r- r M � fl- C).-- r M U) r- M r r M � I, -M r r M Date --- --- --- --- --- --- --- --- --- --- ------- ---------------- --- --- --- --- --- --- --- --- - APPENDIX A Happy Valley #2 - Production History 10000 --- --- ---- --------------------- --- --- --- --- --- --- --- --- - -- --- --- --- --- --- --- --- --- --- --- --- --- ----------- ------- ---------------- -------------------- --- --- --- --- --- --_ -- - - _ ♦Gas Rate - - a� --- --- --- --- --- --- --- --- --- --- --- --- ----------- ------- ---------------- ---------------- --- --- --- --- --- --- --- --- - - ♦FTP - - y Q --- --- --- --------------------------- ------- ---------------- --- --- --- --- --- --- --- --- - ------------- ------- N N da 1000- -------------- - - -- - - -- --- --- --- --- --- ---------- ------------ ---- ------ --- --- - - --- --- --- --- --- --- --- --- -- - 3 --- -- --- --- - -- --- --- --- --- ---- --- --- --- -- - ---- -- ---------------- -------------------- --- --- --- --- --- --- - --- - --- --- - F- --- --- --- --- - --- --- --- --- --- - - 3 ------------------------0 LL otS w 100 --- --- --- --- --- --- --- --- --- --- ------- -------------------- --- m --- --- --- --- --- --- --- --- - --- --- ------- ----------------------------------------- ------ --- --- --- --- --- -------- --- - w ea ----------------- ------------ --- --- --- --- --- --- --- - --- --- --- --- --- --- --- ----------- ---------------- --- N ea --- --- --- --- --- --- -------------------------------------------------------- --- --- --- --- --- --- --- - --- --- --- --- --- ----------------------------------- ------------------------------------------ -- ---- ------ - - --- --------- --- --- --- --- --- --- -- - - 10 10! , I I . I , 1 , 1 1 � 1 , 1 . I , I -- I I —,- I I I I I �n Ln LO Ln Ln CO Cfl CO CO CO CO I1- I,- r- I� � � CO CO Co 00 CO CO rn O) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N N N N N N N N N N N N N N N N N N N N N N N N N CO to i� � r r M In f� � r r M L('1 f� � r r M 1.() I� � r r M Date --- --- --- --- - APPENDIX A Happy Valley #8 - Production History 10000- --------------------------------------- ------------------------------------------- --- --- --- --- --- - --- --- --- --- --- --- --- --- - -- --- --- --- --- - -- --- --- --- --- ----------- --- ------- ---------------- ---------------- --- --- --- --- --- --- --- -__ - _ - - ♦Gas Rate a� .N --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ------- ------- -------------------- -------------------- --- --- --- - ♦ FTP - - Q --- --- --- --- --- --- --- --- --- ----------- -------------------- --- --- --- - d 7 N -- --- --- --- --- -- --- --- --- --- --- --- --- --- --- --- --- --- _ N L ♦ a as l Z CO 1000 3 0 ,. --- --- --- d a --- --- --- --- --- --- --- --- --- --- -- -- -- -- m N e0 ---- ------- -- ---- --------------- ----------------------------- 100 U') LO � LO � CO C0 CO c0 C0 Cfl � � CO CO 00 00 CO 00 rn rn 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N N N N N N N N N N N N N N N N N N N N N N N N N \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ M l(i I� � r r M l(j f� 01 r r M L(') 1� � r r M Ln 1- � r r M Date --- --- --- 1004 1000 0 LL ad q►i u 100 APPENDIX A Happy Valley #9 - Production History f F---r---r--- T --- t ---t --- t --- t--- 1---i---I---- I ---- ---- I ---- I ---- I ---- ---- ----�----k--- --- ------ 4 --- �-a PME bmwft*� Ed EW r ---r--- f --- t ---t ---t- -+--- ---4--- I--- I----I-------I----I----I----k---I---'T71- F---r---r---r---t---i---t---i----t---1--------I------- I ---- I ---- I ---- ---- ---- k --- �----I----L--- I---1 --- 1-J ►c) Ln Ln Ln Ln Co Co CO Co (o to r- r- r– rl- rl- rl- 00 00 CO 00 CO 00 0) CA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N N N N N N N N N N N N N N N N NN N N N N N N N \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ !- \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ M Ln r- 0) r r Cl) Ln r— (n r r M Ln r- 0 r r M l') r` 0') r r M Date APPENDIX A Happy Valley #10 - Production History F10000 10000 --- --- --- --- --- --- --- --- --- --- --- --- ------- - --- --- ------- ---------------- --- --- --- --- __ - -- _ ♦Gas Rate --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ------- ---------------- --- --- --- --- - ♦ FTP - - y ---------------- --- --- Q --- — -- — Om — --- --- ------- ---------------- L N --- --- --- --- ------ --- --- — N L a - - --- ------------------------------------------------------------ F- 1000 - ------- -------- --- --- --- --- --- --- --- --- - --- --- --- --- --- --- --- --- --- - -- ---- ----------- --- -- - --- --- --- --- --- - 0 --- --- --- --- --- --- --- --- --- ----------------- ------ ------------------------------------------------------ --- --- --- 06 --- --- --- --- --- --- ------------ ---------- ----------- --- --- --- --- --- --- --- --- — w ------------------------ as N ep7 100 �n Un Ln Ln Ln c0 (0 to c0 c0 co � I- r- I- I- P- CO CO CO CO CO CO rn m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N N N N N N N N N N N N N N N N N N N N N N N N N \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ r \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ M to I� O) r r CO � f� d1 r .- M lf') I- � �- r M In I- M r r M Date - ------- -------- --- --- --- --- --- --- --- --- - --- --- --- --- --- --- --- --- --- ----------- ---------- --- --- --- --- --- - --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ------- ---------------- --- --- --- --- --- --- --- --- — APPENDIX A Happy Valley #11 - Production History 10000 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ----------- -------------------- --- --- - -- - - - ♦Gas Rate - - LM .� --- --- --- --- --- --- --- --- --- --- --- ----------- --- ------- ---------------- ---------------- --- --- --- --- --- --- --- --- - - - ♦FTP - - - _a --- --- --- --- --- --- --------------------------------------------------------- --- --- --- --- - d N H---------------------------------------------------------------- d a 1000 ----------- --- --- --- --- - - ------- --- --- --- ------ -- ----------------------------------------- --------------------------------- - -- --- --- --- --- --- --- --- ---- - ---------- -------- --- --- --- --- --- -- --- --- - - --- --- --- ----------------------------- -- ---------- -------------------- -- --- --- --- - as 3 0 ------------ --- --- --- --- --- --- --- ------- -------------------- --- --- --- --- --- --- --- - 06 w 100 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- -- - --- --- --- --- ----------- --- -- --------------- ---------------- - -- -- ---------- --- --- --- --- --- --- --- --- --- --- --- --- ------- --- - m --- --- --- --- --- -- --- --- --- --- ------- ---------------- --- --- --- --- --- --- --- --- - - oc --- --- --- --- --- - -- - --- --- --- --- --- ------- -- ---------------- ---- ---- ---- --- --- --- --- --- --- --- --- --- --- - N --- --- --- --- --- -- --- --- --- --- ------- ---------------- --- --- --- - --- --- --- --- --- --- --- --- - ------------ --- --- - --- --- --- --- ------- -------------------- --- --- --- --- ------------- 10 10 LO Ln LO LO Ln C0 CO (0 CO (0 C0 f- r- f- t` f` f- 00 00 00 00 00 00 m M 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N N N N N N N N N N N N N N N N N N N N N N N N N \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ CO LO [A r r CO U') fl- 0) r r M lf� f- 0) r r CO Lf) � 0) r r CO Date -- --- --- - .y _Q d L 7 0 0 d L a am cm .9 0 1C Ca V w m w H 1000 1000 APPENDIX A Happy Valley #13 - Production History I- - i - l t.I � F------- T --------- -------- I -------- f ---------i -------- I-------- -------- --------- -------- --------a--------I -------r--------1--------I--------1'-------1--------I--------I--------4---------------------------------I r ------- fi--------y-------- I -------- i --------- i -------- I -------- F-------- 4 -------- A-------- --------j--------I 100 I 00 00 00 00 00 00 00 00 O� Sz� (& tiO N N ti O Date 2008 Annual Reservoir Review Happy Valley Field April 2, 2009 APPENDIX B Happy Valley Field Safety Valve System Test Reports Union Oil Company of California / A Chevron Company http://www.chevron.com Alaska Oil and Gas Conservation Commission Safety Valve System Test Report Operator: Unocal Operator Rep: Jamie Katz AOGCC Rep: Jeff Jones Submitted By: Field/Unit/Pad: Separator psi: Jamie Katz Date: 5-Mav-08 Happy Valley A LPS 315 HPS NIS We11b 'a ta Pilots ` : SSV AS V r est/ReteWSI Date Well Type .; e. Well Number Permit Number Separ PSI Set PSI L/P Trip Test Code Test Code Test Code Date Passed Retest Or Date Shut In oil, WAG, GINJ, GAS, CYCLE, sl A-1 2030720 315 300 296 P P GAS A-10 2041860 315 300 300 P P GAS A-11 2042070 315 200 200 P P GAS A-2 2031130 315 200 195 P P GAS A-3 2032220 3/1/2004 SI A-4 2032230 3/1/2004 SI A-6 2040440 6/1/2004 SI A-7 2041060 8/1/2004 SI A-8 2041140 315 200 200 P 4 IGAS A-9 2041700 315 200 200 P P GAS Wells: 6 Components: 12 Failures: 1 Failure Rate: 8.33% ❑ 90 Day Remarks: All wells vented to vent stack for DP across SSV. Well A-08 SSV leaks by slightly. Will repair or replace valve. RJF 12/21/04 Page 1 of 1 SVS HV A 05-05-08.xls Alaska Oil and Gas Conservation Commission Safety Valve System Test Report Operator: Unocal Operator Rep: Jamie Katz AOGCC Rep: Jeff Jones Submitted By: Jamie Katz Date: 5 -May -08 Field/Unit/Pad: Happy Valley B Separator psi: LPS 315 HPS NIS Well Data Pilots, `; ' ' SSV' SAP Test✓RetestlSl,Ddte Well Type Well Number Permit Number Separ PSI Set PSI L/P Trip Test Code Test Code Test Code Date Passed Retest Or Date Shut In Oil, WAG, GiNJ, GAS, CYCLE, S1 B-13 2071510 315 N/A N/A P P GAS Wells: 1 Components: 2 Failures: 0 Failure Rate: 0.00% ❑ 90 Day Remarks: The 404 for last month's perforations on the B-13 well has not been sent to the state, yet. The 403 application for these perforations was signed 3/29/08. There are no pilots on this well. This is a pneumatically actuated SSV to be used, if necessa by the 24 hr on-site operator. The SSV test was for the valve alone. RJF 12/21/04 Page 1 of 2 SVS HV B 05-05-08.xls Alaska Oil and Gas Conservation Commission Safety Valve System Test Report Operator: Unocal Operator Rep: Jamie Katz AOGCC Rep: Jeff Jones Submitted By Field/Unit/Pad Separator psi Jamie Katz Date: 7 -May -08 Happy Valley A LPS 315 HPS NIS Well Data ` Palots SSV i SSSV Test/Retesi✓SI Date well Type Well Number Permit Number Separ PSI Set PSI L/P Trip Test Code Test Code Test Code Date Passed Retest Or Date Shut In ori, WAG, GINJ, GAS, CYCLE, SI A-8 2041140 315 200 200 P P 5/7/2008 GAS Wells: 1 Components: 2 Failures: 1 Failure Rate: 50.00°/� 90 Day Remarks: The well was vented to vent stack for DP across SSV. Replace and retest Well 4 8 (Leaky Drop Valve) Tested OK. RJF 12/21/04 Page 1 of 1 SVS HV A 05-07-08 RETEST.xls Alaska Oil and Gas Conservation Commission Safety Valve System Test Report Operator: Chevron Operator Rep: Steve Tanner AOGCC Rep: Bob Noble Submitted By: Jamie Katz Date: Field/Unit/Pad: Happy Valley A Separator psi: LPS 275 HPS NIS 3 -Nov -08 Well Data PilotsF `: * - SSV SSSV 74 i4?etest%SI Date Well Type,, Well Number Permit Number Separ PSI Set PSI L/P Trip Test Code Test Code Test Code Date Passed Retest Or Date Shut In Oil, WAG, GINJ, GAS, CYCLE, SI A-1 2030720 275 300 300 P P GAS A-10 2041860 275 300 320 P P GAS A-11 2042070 275 200 200 P P GAS A-2 2031130 275 200 195 P P 10/22/2008 SI A-3 2032220 3/1/2004 SI A-4 2032230 3/1/2004 SI A-6 2040440 6/1/2004 SI A-7 2041060 8/1/2004 SI A-8 2041140 315 200 200 P P GAS A-9 2041700 315 200 200 P P GAS Wells: Remarks: 6 Components: 12 Failures: 0 Failure Rate: 0.00% ❑ 90 Day All wells vented to vent stack for DP across SSV. All wells Passed. Used Calibrated test Gauge. M/N Ashcroft 2074 S/N 1007267 RJF 12/21/04 Page 1 of 1 SVS HV A 11-03-08.xls 2008 Annual Reservoir Review Happy Valley Field April 2, 2009 APPENDIX C Happy Valley Field Reservoir P/Z versus Cumulative Gas Plots Union Oil Company of California / A Chevron Company http://www.chevron,com