FLOODED OIL FIELD EXPLOITATION METHOD Russian patent published in 1995 - IPC

FIELD: oil and gas industry. SUBSTANCE: method provides for exploitation of oil field by pumping stratum fluid out from production borehole and pumping gas in stratum through pumping in borehole with simultaneous vibroseismic action from ground source of vibration, operating in frequency range from 0.1 to 500 Hz on area of stratum, located between pumping in and production boreholes. Vibroseismic action is exercised through waveguide borehole, that opens medium power part of stratum as amplitudes shift exceeds . Pumping stratum fluid out is exercised constantly from upper (roof-type) zone of stratum and pumping gas in stratum is exercised by cycles into lower (near soil) zone of stratum with simultaneous vebroseismic action until stratum gas saturation at the end of cycle achieves 5 -15 Before cycle of pumping gas in begins with simultaneous vibroseismic action and after the action ends they measure acoustic noise of stratum. Duration of exploitation period between cycles is determined at the moment of coincidence of the measurements results. EFFECT: flooded oil field exploitation method is used in oil-and-gas industry. 3 cl, 2 dwg