Fluid pumping apparatus and method of pumping fluid

Details Fluid pumping apparatus and method of pumping fluid Fluid pumping apparatus and method of pumping fluid

1992-11-12

1994-05-24

Bagnell, David J.

Wells

Processes

Producing the well

166105, 417415, 417417, E21B 4300, F04B 704, F04B 2102

Patent

active

053140257

ABSTRACT:
A fluid pumping apparatus for producing fluid from a well through production tubing comprises an elongate hollow body to be disposed in a well bore and at least partially submerged in fluid to be produced from the well, the body including fluid inlet valve at its lower end for flow of fluid into the body, a plunger assembly disposed in the interior of the body for reciprocating movement relative thereto, sealing means cooperating with the plunger assembly to divide the body into isolated lower and upper chambers and to isolate the body from the production tubing, and fluid flow control valves operationally synchronized so that fluid is forced up the production tubing upon downstroke of the reciprocating plunger assembly in the body of the pumping apparatus. A method of pumping fluid utilizing the apparatus of the invention to produce fluid on the downstroke of the plunger assembly is also provided.

REFERENCES:
patent: 3364864 (1968-01-01), Ghoerghe
patent: 4538970 (1985-09-01), Rabson
patent: 4548552 (1985-11-01), Holm
patent: 5058667 (1991-10-01), Ramsower

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