WELL SUCKER-ROD PUMP DRIVE Russian patent published in 1999 - IPC

Abstract RU 2133875 C1

FIELD: powered oil production. SUBSTANCE: drive includes electric motor, double-threaded screw with nut kinematically linked with electric motor and rollers with tractive member. Nut is fitted for axial displacement over vertical guide and is directly connected with sucker-rod string underneath and with tubing string at the top by means of rod made in form of flexible coupling. Besides that, drive is provided with balancing counter-weight. EFFECT: enhanced operational reliability and efficiency. 1 dwg

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RU 2 133 875 C1

Authors

Lju Chjun' Tsjuan'

Urazakov K.R.(Ru)

Khafizova A.I.(Ru)

Dates

1999-07-27—Published

1998-01-05—Filed