FIELD: oil industry.
SUBSTANCE: invention relates to oil industry and, in particular, to operation of downhole pumping wells with gas show. Downhole pump unit includes rod pump, tail pipe with check valve installed on packer. At supports of tail pipe there is a switch, which hydraulically connects said tail pipe via check valve installed on its top end with plug. Length of said plug exceeds distance from dynamic level of suspension to depth of pump. Tail pipe with tube plug forms hydraulic channel communication of well bottom with annular space. Parallel to pipe-plug on upper half-coupling of said switch there is a rod pump. Lower end of switch is made in form of truncated cone with base, directed downwards, and along outer diameter is equipped with centralisers.
EFFECT: technical result is higher separation capacity, faster process of well development and on process mode of operation, simplified design.
1 cl, 1 dwg
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