SELF-ALIGNING STANDING VALVE OF DEEP-WELL SUCKER-ROD PUMP

摘要

FIELD: oil producing industry; well sucker-rod pumping units.;SUBSTANCE: valve body is installed eccentrically relative to pup housing for turning with preservation of tightness in turnable pair. Axis of valve space is arranged at angle to axis of pump, being located in place of location eccentricity formed between valve body and pump. Valve body has wheel pair whose axis is located square to pump axis, and wheels are arranged symmetrically relative to eccentricity formed between valve body and pump. Design of self-aligning standing valve for operation in slanted directional wells provides self-alignment in optimum operating position for maximum capacity, creates possibility of application of wide passage standing valves. Use of wheel pair precludes untimely wear of tubing.;EFFECT: improved reliability in operation.;3 dwg