Abstract
ABSTRACT Three cogeneration plants, totaling 24 megawatts of electric power output and 750 million Btu/h of steam generation, have been placed in service in Chevron enhanced oil recovery operations in Kern County, California. Two of the plants, each with 10 MW of electricity generation capacity, use conventional gas turbines with supplementary-fired waste heat recovery steam generators. The third plant, with 4 MW of electricity generation, uses a steam topping turbine to extract power from steam as it expands from high steam generator output pressures down to lower steam injection well pressures. The two gas turbine plants have proven to be reliable, flexible and economic. The topping turbine operation and economics are still being proven.
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