FIELD: oil and gas production industry. SUBSTANCE: this improves workability of wellhead equipment. Oil recovery setup operates two wells which are provided with rod-type pumps, pump-compressor tubing strings and strings of pump rods. Also provided is hydraulic cylinder having its piston connected with one string of pump rods by means of rope. Compensator included in setup can interact with rope. Piston is connected with other string of pump rods also by means of rope. Compensator is installed in position so that mass of pump rod string is taken into consideration. EFFECT: higher efficiency. 1 dwg
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Authors
Dates
1998-03-10—Published
1996-05-22—Filed