METHOD AND DEEP-WELL SUCKER-ROD PUMP FOR OPERATION OF WELLS Russian patent published in 1999 - IPC

FIELD: oil and gas production industry. SUBSTANCE: according to method, delivery of recovered liquid from wells to collecting stations, and secondary injection back into well of gas separated from recovered liquid products and then used for gassing of products recovered through string of pipes is effected by means of one or two pump-compressors which are incorporated in pumping jack assembly. Pump-compressors are brought in reciprocating motion by balancer of pumping jack. Pump-compressor is installed after reduction unit which runs asynchronously with deep-well pump and before rod which operates synchronously. Created are mutually equalizing parts loaded by weight of deep-well pumping equipment. Employed is tubular device for measuring output of well products. At continuous supply of well with gas separated in gas separator, well products allow for utilizing pressure developed by pump-compressor as equalizing force. Application of aforesaid method and device widens functional potentialities in using deep-well sucker-rod pumping assemblies. EFFECT: higher efficiency. 2 cl, 2 dwg