FIELD: oil and gas industry.
SUBSTANCE: device comprises a tubing string, a pumping unit and a wellhead shut-off valve. There is also a discharge branch pipe. It is communicated with the tubing string. The device has an inlet and a check valve. This valve is provided with adjustable opening for providing required level of liquid in the annulus and communicated with the tubing string above the tubing string connection with the discharge branch pipe. Beyond the wellhead fittings said branch pipe is comprised of wellhead shut-off fittings upraised to a height not less than the inner diameter of discharge branch pipe. The oil gas release is provided through the tubing string with the use of appropriate stroke of sucker-rod pump plunger or stopping and subsequent starting of electric submersible pump.
EFFECT: simplification of the device and provision of possibility for using when operating with electric submersible pumps and submersible plunger-rod pumps.
2 cl, 3 dwg
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