FIELD: oil production, particularly oil and gas well development.
SUBSTANCE: plant comprises drive for pump, as well as pressure accumulator and well pump connected to ends thereof. Pressure accumulator in lower part thereof is provided with movable seat with return spring resting upon protective grid. Working liquid supplied by pump unit from well head exerts direct action on drive piston. Cavity defined by drive piston and well pump piston communicates with hole annuity defined between casing pipe and production string through one or several radial orifices and pump drive adapter. Well pump is provided with valve arranged in lower part thereof. The valve prevents pressure pulse transmission to zone located under packer.
EFFECT: increased well development efficiency due applying pulses to productive reservoir.
1 dwg
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