UONPR No. 1 Elk Hills: 26R Reservoir: Reservoir Analysis, Reserves and Economics, and Alternative Exploitation Strategies: Final Technical Report

摘要

The 26R Stevens Reservoir is located along the southern, west-central flank of the Elk Hills structure in western Kern County, California. In September 1988, the 26R Reservoir produced an average of 22,447 barrels of oil per day from 46 producing wells. The average producing gas-oil ratio was 5912 cubic feet per barrel and the average water cut was 8.4%. The 26R Reservoir was put on production in July 1976, and gas injection for the purpose of pressure maintenance was initiated soon thereafter in October 1976. In September 1988, injection was an average of 168,911 Mcf/D into nine wells, which was in keeping with the policy of injecting 110% of calculated withdrawals. Gas production and residue gas injection are at or near current plant capacity. The purpose of this report is, therefore, to determine if current policy of full pressure maintenance is still viable, or if there is another exploitation option which would better result in maximizing both recovery of hydrocarbons and economic return. 16 figs., 18 tabs. (ERA citation 14:016998)