SU1382995A1 - Sucker-rod insertion well pump - Google Patents

Abstract

Invention m. used in the oil industry in the mechanized operation of wells. The purpose of the invention is to increase operational efficiency. Disconnector 9 with extra reverse

Description

CO CX)

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valve (K) 10 is installed above the suction of K 7 and hydraulically communicated with the annular cavity 4 when the plunger 5 moves downwards. With this implementation, part of the injection well fluid:, 1

: The invention relates to a technique; the exploration of oil, in particular for well-sucker-rod plug-in pumps, and can be used in the oil industry, for example, during the mechanized operation of wells,

I The purpose of the invention is to increase the efficiency of operation.

The drawing shows the well. ntangovy plug-in pump., general view

 The pump contains a cylinder 1, located in the column of pumping pipes 2 through the lower locking support 3 with the formation of an annular cavity 4 with the inner surface of the pumping pipe: the outer surface of the cylinder, which is installed in the cylinder 1 the plunger 5 connected through Rod 6 to the pump rod columns (not Proved) 5 suction 7 and injection valve 8 valves, placed respectively in cylinder 1 and full plunger 5. Cylinder 1 is equipped with an HJbiM installed above 7 suction valve with a flap 9 with an additional reverse f1m valve pan 10, hydraulically communicated with annular cavity 4 when the valve plug 5 is down,

The downhole sucker rod plug on S1O.C works as follows.

During the movement of the hollow plunger 5, the discharge valve 8 and the additional reverse valve 10 installed in the disconnector 9 close j and the suction valve 7 opens, and the well fluid enters the cavity of the pump cylinder 1 under the plunger.

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When the hollow plunger 5 moves downward, the suction valve 7 closes and simultaneously opens the discharge 8 and additional 10 check valves, and the well fluid from the cavity of the cylinder 1 under the plunger enters the cylinder cavity above the plunger and the annular cavity 4 and dapee into the column of pump tubes 2, and then on the day surface. Thus, part of the injected well fluid passing through the additional check valve 1 O reduces the hydraulic resistance in the injection valve 8 and helps prevent sand accumulation in the annular cavity 4 at the location of the castle support 3.

Claims (1)

Invention Formula A borehole sucker rod pump comprising a cylinder is mounted25 thirty Editor O. Yurkovetska in the tubing string through the lower locking support with the formation of an annular cavity between the inner surface of the tubing string and the outer surface of the chrshindra, a hollow plunger mounted in the cylinder, connected through a rod from the tubing rods, is a suction and discharge valve, characterized by that, in order to increase the efficiency of operation, the cylinder is equipped with a disconnector mounted above 35 with a disengaging valve with an additional non-return valve hydraulically communicated with the annular valve. cavity poi during the plunger down. Compiled by E.Ginzburg Tehred M.Didyk Korrek gor I.Musk t, passage through K 10, reduces the hydraulic resistance in K 8 and helps prevent sand accumulation in the cavity 4 at the location of the castle bearing 3 '1 sludge. 0 five 0 When the hollow plunger 5 moves downward, the suction valve 7 closes and simultaneously opens the discharge 8 and additional 10 check valves, and the well fluid from the cavity of the cylinder 1 under the plunger enters the cylinder cavity above the plunger and the annular cavity 4 and dapee into the column of pump tubes 2, and then on the day surface. Thus, part of the injected well fluid passing through the additional check valve 1 O reduces the hydraulic resistance in the injection valve 8 and helps prevent sand accumulation in the annular cavity 4 at the location of the castle support 3. Invention Formula A borehole sucker rod pump comprising a cylinder is mounted