Apparatus for pumping fluid from a well through a tubing string

Details Apparatus for pumping fluid from a well through a tubing string Apparatus for pumping fluid from a well through a tubing string

1979-08-23

1981-10-27

Taylor, Billy S.

Pumps

Motor driven

Fluid motor

F04B 908

Patent

active

042970873

ABSTRACT:
An apparatus is provided for pumping fluid from a subterranean well through a tubing string. A pressure actuated subsurface pump and a surface unit are in fluid communication with opposite ends of the tubing string. The surface unit cyclically applies pressure to the fluid in the tubing string to actuate the subsurface pump and cause a radial expansion of the tubing such that potential energy is stored in the tubing string. Each time the surface unit removes the applied pressure, the stored potential energy is released to the surface unit which converts the potential energy into kinetic energy for use in the next pumping cycle.

REFERENCES:
patent: 2058455 (1936-10-01), Huff
patent: 2095475 (1939-10-01), Kittler
patent: 2123139 (1938-07-01), Huff
patent: 2126880 (1938-08-01), Gardner
patent: 2508609 (1950-05-01), Johnson
patent: 2544094 (1951-03-01), Knowles
patent: 4172692 (1979-10-01), Everett

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