Lifting liquid from boreholes

Pumps – Successive stages – Reciprocating rigid stages

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Details

417264, 417403, F04B 300

Patent

active

043838030

ABSTRACT:
A device for lifting liquid from boreholes comprises a pump which is located downhole in the region of a production formation and which consists of a fluid-actuated, double-action piston. The pump is connected by fluid pressure lines to a source of fluid pressure disposed above ground and a switching valve is connected to provide fluid pressure to alternate sides of the piston to effect reciprocation thereof.

REFERENCES:
patent: 1851801 (1932-03-01), Boone
patent: 1887886 (1932-11-01), Grant
patent: 1946454 (1934-02-01), Coberly

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