| 摘要 |
oil and gas production. SUBSTANCE: gas- lifting elevator has string of lifting pipes joined to body of unit for injection of gaseous working agent and packer. Unit for injection of gaseous working agent comes in the form of bent tubes with diameter equal to 0.05-0.1 diameter of lifting pipes mounted in symmetry with axis of elevator for coalescence of gas bubble coming from tubes. Centering mounts are put on body of unit for injection of gaseous working agent. Holes for aeration of liquid are uniformly drilled over length of string of lifting pipes. EFFECT: raised depression thanks to formation of gas piston in tubing string for forcing of aerated liquid, simplified design of gas-lifting elevator. 3 cl, 3 dwg
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