LINEAR TRACTIVE MEMBER OF WELL PUMPING UNIT Russian patent published in 1998 - IPC

Abstract RU 2105195 C1

FIELD: oil recovery; oil wells provided with plungers at considerable depth. SUBSTANCE: linear tractive member is made in form of metal band having concave-concave cross section inscribed in rectangle having height h and width b. Lateral edges are formed by arcs at radius r=0.5h; they ar engageable with surfaces by radii , where n=0.4-1. EFFECT: enhanced efficiency. 3 dwg

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RU 2 105 195 C1

Authors

Ageev L.M.

Novikov A.G.

Sokol A.N.

Dates

1998-02-20—Published

1996-04-26—Filed