APPARATUS FOR OIL DEPOSIT DEVELOPMENT (VERSIONS) Russian patent published in 1995 - IPC

FIELD: oil extraction. SUBSTANCE: produced water from liquid-gas separator is fed into low-pressure chamber of liquid ejector, on operating nozzle of which under pressure water is fed. Gas from liquid-gas separator is fed into low-pressure chamber of second liquid-gas ejector, on operating nozzle of which water is fed too. So compressed water and/or gas are sent to meet the oil field development needs: to be used in pumping in and production boreholes, during boreholes development, for gas-lifting use, to isolate inflow of stratum water with the help of pumping foam in bottom zone. During gas compression in liquid-gas ejectors released heat is also utilized and used in process of oil deposit development to warm pumped in stratum water. EFFECT: decreased material consumption during utilization of associated petroleum gas and produced water. 2 cl, 2 dwg