Downhole pump

Details Downhole pump Downhole pump

1978-05-08

1979-11-06

Croyle, Carlton R.

Pumps

Expansible chamber type

Relatively movable serial distributors

417466, 417469, F04B 1902

Patent

active

041734513

ABSTRACT:
An improved downhole pump includes a pump body connected to the lower end of tubing extending inside a well. Pumping is effected below the standing valve by a plunger reciprocating within a slidable barrel. In one embodiment, the ported barrel is magnetically responsive to stroking of the plunger to define a closed volume on the upstroke and a vented volume on the downstroke, whereby gas lock is eliminated. In another embodiment, the barrel is mechanically responsive to the plunger.

REFERENCES:
patent: 1175970 (1916-03-01), Michaelson
patent: 1742579 (1930-01-01), Childers
patent: 2307451 (1943-01-01), Coberly
patent: 2620737 (1952-12-01), Miller
patent: 3578886 (1971-05-01), Nino

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