Down hole pump having a gas release valve

Details Down hole pump having a gas release valve Down hole pump having a gas release valve

1985-01-09

1985-12-10

Freeh, William L.

Pumps

Successive stages

Reciprocating rigid stages

417435, 417444, F04B 300, F04B 2106

Patent

active

045576688

ABSTRACT:
A downhole pump having a gas release valve which valve can be easily applied to the fixed barrel of a conventional downhole traveling plunger pump by merely lengthening such barrel. A trip on the pull rod attached to the plunger lifts off a valve element of the barrel valve seat to release any gas or foamy oil otherwise trapped between the lower standing valve and the traveling valve of the plunger. Such release takes place on each stroke of the pump. The invention is useful for obtaining oil under subterranean formation conditions that do not normally permit such recovery efficiently due to gas locks and can be either provided in a downhole pump or added to a conventional traveling plunger preexisting pump.

REFERENCES:
patent: 969127 (1910-08-01), Arnold
patent: 1066798 (1913-07-01), Conrader
patent: 2344786 (1944-03-01), Patterson et al.
patent: 2723625 (1955-11-01), Nichols
patent: 3074352 (1963-01-01), Vincent
patent: 3941516 (1976-03-01), Soberg
patent: 4219311 (1980-08-01), Simon

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