FIELD: oil production, particularly gas and oil well development.
SUBSTANCE: device has pressure accumulator with elastic ball, as well as pump drive, medium separator and borehole pump with suction and pressure valves. Pressure accumulator is provided with movable seat arranged in lower part thereof. Pump drive and borehole pump have equidimensional pistons fixedly connected one to another through hollow rod with valves installed at both ends thereof and with one or several radial orifices. Said orifices are arranged above borehole pump piston. One or several radial orifices are located in lower pump drive part.
EFFECT: increased efficiency of well development due to hydroimpulsive action application to productive bed in the case of low and abnormally low bed pressure, reduced operational costs.
1 dwg
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