DEEP-WELL PUMPING UNIT FOR PUMPING OUT GASSY FLUID WITH HARD PARTICLES Russian patent published in 1997 - IPC

Abstract RU 2100651 C1

FIELD: oil producing industry. SUBSTANCE: pumping unit has cylinder with main suction valve arranged along cylinder axis. Additional suction valve is located above main suction valve and eccentric relative to cylinder axis. Intake chamber has upper portion provided with connecting pipe coaxial with additional suction valve arranged at pipe outlet. EFFECT: increased production rate of oil wells operating with low efficiency pumping units and short service life caused by negative influence of gas and mechanical admixtures. 1 dwg

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RU 2 100 651 C1

Authors

Koshkin Konstantin Ivanovich

Kljushin Ivan Jakovlevich

Dates

1997-12-27—Published

1996-12-25—Filed