Submergible pumping apparatus

Details Submergible pumping apparatus Submergible pumping apparatus

1982-09-30

1985-08-20

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

91313, 92165R, 417397, 417563, 417571, F04B 4708

Patent

active

045361371

ABSTRACT:
Submergible pumping apparatus for use in an oil or other well comprises, in a self-contained downhole unit, a double-acting reciprocating positive displacement pump for pumping well fluid, a reservoir containing power fluid for operating the double-acting pump, a rotary motor-driven positive displacement pump for supplying power fluid under pressure from the reservoir to operate the reciprocating pump, and a control valve for properly directing high pressure power fluid from the rotary pump to the reciprocating pump and from the reciprocating pump back to the reservoir so as to provide stroke reversal of the reciprocating pump.

REFERENCES:
patent: 1714425 (1929-05-01), Knab
patent: 2152802 (1939-04-01), Harris
patent: 2394364 (1946-02-01), Christensen
patent: 2427616 (1947-09-01), Mohler
patent: 2799225 (1957-07-01), Schoen
patent: 2812721 (1957-11-01), Coberly
patent: 3091181 (1963-05-01), Wolf
patent: 3370545 (1968-02-01), Waibel
patent: 3652187 (1972-03-01), Loeffler et al.
patent: 4234295 (1980-11-01), Jensen
patent: 4406598 (1983-09-01), Walling

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