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HomeMy WebLinkAbout2004 Badami ANNUAL RESERVOIR SURVEILLANCE REPORT BADAMI OIL POOL JANUARY 2004 - DECEMBER 2004 Table of Contents 1. Introduction 1 2. Summary of Reservoir Management and Enhanced Recovery 1 3. Voidage Balance 1 4. Reservoir Pressure Monitoring 1 5. Production Logging 2 6. Special Monitoring 2 7. Evaluation of Well Testing And Allocation 2 8. Future Development Plans 2 9. Review Of Annual Plan Of Operations And Development 2 Appendices Table 1 Badami Well Disposition Table 2 Badami Production/Injection - Surface Units Table 3 Badami Production/Injection - Reservoir Units Table 4 Badami Pressure Monitoring Summaries Table 5 Badami Well Testing Frequency Summaries Figure 1 Field Production History Figure 2 Field Gas Disposition Histories ANNUAL RESERVOIR SURVEILLANCE REPORT BADAMI OIL POOL January 2004 – December 2004 1. Introduction As required by Rule 9 of the Badami Oil Pool Area Injection Order, dated August 26, 1998, this report provides a summary of the enhanced oil recovery operations at Badami. The field was granted a suspension of production (SOP) by the Department of Natural Resources in May of 2003. The field has been shut -in with the facilities in warm shutdown mode since August of 2003. The SOP period allows for the evaluation of options for future utilization of the existing infrastructure. 2. Summary of Reservoir Management and Enhanced Recovery There has been no injection or production of fluids from the Badami reservoir in the period covering this surveillance report. Charts of life -of-field oil production history and gas disposition history are presented in Figures 1 and 2. In January, 2004, diagnostics confirmed tubing by inner annulus communication in wells B1 -25 and B1 -28. Well service equipment was mobilized to Badami in August 2004 to secure the wells. In B1 -25, an obstruction -- possibly collapsed tubing -- prevented access below about 4500’. A rig will be mobilized in April 2005 (via ice road) to secure this well. B1 -28 was secured with an inflatable bridge plug, and the well will continued to be monitored. 3. Voidage Balance There has been no injection or production of fluids from the Badami reservoir in the period covered by this surveillance report. Therefore, cumulative voidage through December 31, 2004 remains negative 563,956 reservoir barrels. 4. Reservoir Pressure Monitoring No bottom hole reservoir pressure surveys were taken at Badami during the report period. A campaign to gather static reservoir pressures is planned for early in 2005. Wellhead pressures are monitored daily for well integrity and safety purposes, however extrapolating these pressures to bottomhole conditions is highly uncertain and inaccurate, and only measured bottomhole pressures will be included in this report. 5. Production Logging No production logging was performed during the report period on wells completed in the Badami reservoir. 6. Special Monitoring No special monitoring activities were performed during the report period. 7. Evaluation of Well Testing and Allocation No wells have been tested during the report period. 8. Future Development Plans BP is planning on obtaining static bottomhole pressures from existing Badami wells early in 2005. Based on this new data and ongoing study, BP will evaluate future plans of Badami which could include restart of the field and separately, possible redevelopment through the application of new well design or depletion technologies. Monitoring of well integrity and surveillance activity on the Class 1 disposal well, B1 -01, will continue as required. 9. Review of Annual Plan of Operations and Development The field was granted a 5th POD which is a Suspension of Production (SOP) by the Department of Natural Resources in May of 2003, which expires June 30, 2005. BP pla ns to submit a new POD to DNR by June 1, 2005 which will outline any change in plan. Appendices Table 1 Badami Well Disposition Well Completion Date Dis position Comment B1 -11A 3/4/98 Pre-produced injector cased and prop fracced. Producer 8/24/98 to present. Currently shut in. B1 -14 5/1/98 Gas injector, cased. Injector 8/24/98 to 9/29/98. Producer 9/30/98 to 11/29/98. Injector 9/30/98 to present . Cur rently shut in. B1 -15 7/31/98 Producer, trilateral open hole. Dedicated producer. Supported by injection from B1 -14. Currently shut in. B1 -16 6/13/98 Pre-produced injector, cased, prop fracced. Injector 8/24/98 to 9/25/98. Producer 9/26/98 to 10/21/98. Currently shut in. B1 -18 4/3/98 Producer, cased and prop fracced. Dedicated producer. Currently shut in. B1 -21 1/6/98 Pre-produced gas injector, fracced, no proppant Producer 8/24/98 to 11/30/98, then converted to gas injector. Currently shut in. B1 -25 11/20/98 Producer, unilateral open hole. Unilateral open hole dedicated producer. Currently shut in. Rig workover planned for April, 2005 to secure well. B1 -28 10/20/98 Producer, trilateral open hole. Trilateral open hole dedicated producer. Currently shut in. B1 -36 5/23/99 Producer. Dedicated producer Currently shut in. As of December 31, 2004 Table 2 Badami Production/Injection - Surface Units Table 2 BADAMI PRODUCTION / INJECTION - SURFACE UNITS 2004 PRODUCTION Jan Feb Mar April May June July Aug Sept Oct Nov Dec 2004 Total Oil (stb)0 0 0 0 0 0 0 0 0 0 0 0 0 Associated Gas (mscf)0 0 0 0 0 0 0 0 0 0 0 0 0 Free Gas (mscf)0 0 0 0 0 0 0 0 0 0 0 0 0 Water (stb)0 0 0 0 0 0 0 0 0 0 0 0 0 2004 INJECTION Water (stb)0 0 0 0 0 0 0 0 0 0 0 0 0 Gas (mscf)0 0 0 0 0 0 0 0 0 0 0 0 0 Table 3 Badami Production/Injection - Reservoir Units Table 3 BADAMI PRODUCTION / INJECTION - RESERVOIR UNITS 2004 PRODUCTION Jan Feb Mar April May June July Aug Sept Oct Nov Dec 2004 Total Oil (rb)0 0 0 0 0 0 0 0 0 0 0 0 0 Gas (rb)0 0 0 0 0 0 0 0 0 0 0 0 0 Water (rb)0 0 0 0 0 0 0 0 0 0 0 0 0 All fluids (rb)0 0 0 0 0 0 0 0 0 0 0 0 0 2004 INJECTION Water (rb)0 0 0 0 0 0 0 0 0 0 0 0 0 Gas (rb)0 0 0 0 0 0 0 0 0 0 0 0 0 All fluids (rb)0 0 0 0 0 0 0 0 0 0 0 0 0 Voidage (rb)0 0 0 0 0 0 0 0 0 0 0 0 0 Oil Formation Volume Factor, Bo (1)1.300 rb/stb Gas Formation Volume Factor, Bg (2)0.00058 rb/scf 0.00328 vol/vol Note (1)Bo from Average of Badami#1 and Badami#5 (lower sand) PVT analysis. (2)Bg calculation based on gas composition of sample taken 9/18/98 185° f Reservoir temperature 6400 psi Reservoir pressure Table 4 Badami Pressure Monitoring Summary Year Summary of pressure monitoring Program 2003 No Static BH Pressure Surveys taken. 2004 No Static BH Pressure Surveys taken. 2005 Campaign planned to get Static BH Pressure Surveys from several wells. Table 5 Badami Well Testing Frequency Summary Well Number of Well Tests in 2003 Number of Well Tests in 2004 B1 -11A 11 0 B1 -15 3 0 B1 -18 1 0 B1 -25 8 0 B1 -28 9 0 B1 -36 7 0 Figure 1 Field Production History Badami Field Oil Production 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 18,000 Jan-1998 Jan-1999 Jan-2000 Jan-2001 Jan-2002 Jan-2003 Jan-2004 Jan-2005Daily Oil Volume (bbls) Figure 2 Field Gas Disposition Histories Badami Field Gas Disposition 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 Jan-1998 Jan-1999 Jan-2000 Jan-2001 Jan-2002 Jan-2003 Jan-2004 Jan-2005Daily Gas Volume (mmscf)Flare Injection Fuel Endicott