TECHNIQUE AND INSTALLATION TO HIT STRATUM WITH STRIKES Russian patent published in 2001 - IPC

FIELD: oil industry. SUBSTANCE: invention is designed for realization of vibration and seismic action to increase oil pool output. According to technique of hitting stratum opened by excitation well with falling striking tool hydraulic energy is used to lift striking tool. Striking action is executed simultaneously with excavation of oil from excitation well. Energy of flow of medium extracted from well is employed to lift striking tool. Striking tool of installation to hit stratum with strikes is located in shaft of well. Lifting unit is coupled to striking tool and is manufactured in the form of body housing piston with through conduit, valve, upper limiter of piston lift opening valve and lower limiter of piston descent shutting valve. Valve is interrupter of lift of striking tool. Space between outer surface of body of lifting unit and inner surface of well is shut off by packer. Space above piston of lifting unit is hydraulically coupled to suction line of well pump. EFFECT: expanded application field and functional capabilities. 2 cl, 2 dwg