Tubing pump system for pumping well fluids

Details Tubing pump system for pumping well fluids Tubing pump system for pumping well fluids

1996-07-29

1998-06-16

Melius, Terry Lee

Wells

With below and above ground modification

Above ground actuating means for below ground device

166313, 166117, 417431, E21B 3412, E21B 4312, F04B 3900

Patent

active

057656398

ABSTRACT:
The invention provides apparatus for producing well fluids from an oil bearing formation penetrated by a well including a tubing string forming a production flow path for production fluids between the earth's surface and a location in the well suitable for receiving well production fluids, a power tubing parallel to the production tubing and connected to the flow path of the production tubing, a pump barrel formed in the power tubing, and a lubricating plunger in the pump barrel forming an annulus therewith and having ports to permit flow of lubricating fluids from the lubricating plunger into the annulus. The apparatus is provided with means for providing lubrication fluid to the lubricating plunger.

REFERENCES:
patent: 2797642 (1957-07-01), Bloudoff
patent: 3167019 (1965-01-01), Harris
patent: 3765483 (1973-10-01), Vencil
patent: 3771603 (1973-11-01), Crowe
patent: 3802802 (1974-04-01), Greer
patent: 4056335 (1977-11-01), Secrist
patent: 4646839 (1987-03-01), Rickey
patent: 4880062 (1989-11-01), Bland

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