MECHANICALLY ADJUSTABLE CHOKE Russian patent published in 2001 - IPC

Abstract RU 2173768 C1

FIELD: oil producing industry; applicable in regulation of fluid flow rate, particularly, in system of maintenance of formation pressure in well, in regulation of flow rate of injected water for stimulation of oil recovery from oil-bearing formations. SUBSTANCE: choke has a flat slip with hole and flat slider on adjusting screw with cuts for moving along slip. Slider has holes with diameters rising in arithmetic progression in direction of adjusting screw. Holes on slider and fixed slip are reinforced with inserts of hard alloy. Maximum diameter of hole on slider is equal to diameter of hole on slip. EFFECT: higher efficiency of regulation of flowing liquid volume. 1 dwg

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RU 2 173 768 C1

Authors

Iskhakov I.A.

Gabdrakhmanov N.Kh.

Mingulov Sh.G.

Galiullin T.S.

Urazakov K.R.

Dates

2001-09-20—Published

2000-02-15—Filed