| 摘要 |
FIELD: oil production industry. SUBSTANCE: method and device can be used for lifting bed fluid from well to day surface simultaneously by means of electric immersed pump, sucker rod pump, and jet pump. According to method, introduced into well are electric immersed pump, sucker rod pump, and jet pump. Lifting of liquid and gas is additionally performed by means of sucker rod pump. In process of combined operation, liquid flow delivered by electric immersed pump and/or sucker rod pump is directed through jet pump. Gas is taken from annular space into string of pump-compressor pipes also through jet pump. Flow rate of withdrawing liquid or gas or alternately of liquid and gas is regulated by changing depth of positioning in well bore-hole of sucker rod pump in combination with jet pump and changing their mode of operation. Equipment for realization of aforesaid method includes valving unit and sucker rod pump installed above valving unit with upper body and lower body. Made in body of valving unit is stepped hole with bores for sealing rings. Also located over center and interconnected are collet and plunger. Plunger is stepped in its external surface and has radial holes communicating with blind hole. Secured in blind hole is collet with sleeve for limiting displacement of plunger. Application of aforesaid method and equipment ensures higher oil output and longer service period between repairs. Also electric power and materials are saved. EFFECT: higher efficiency. 4 dwg
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