| 摘要 |
Appliance for pumping out gassed liquid from oil well has beam pump, gas-protection case with gas discharge valve and tail element placed concentrically with respect to beam pump and fixed in its upper part. Between the gas safety case and beam pump closed from beneath body of gas separator is placed, with perforation channels in the upper part. The body of the gas separator and gas protection case form outer circular cavity, this is hydraulically connected to annular space of the well through gas discharge valve. Beam pump and closed from beneath body of gas separator form one with another inner circular cavity, this is hydraulically connected to the annular space of the well with supplementary gas supply valve placed in the upper part of the inner annular cavity.
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