Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1990-02-28
1990-12-04
Kisliuk, Bruce M.
Wells
With below and above ground modification
Eduction pump or plunger in well
166106, 166902, E21B 4312
Patent
active
049746731
ABSTRACT:
The present invention relates to a system for improving the production of crude oil for underground reservoirs by the injection of treatment fluids. The system includes a subsurface oil pump for pumping oil from the reservoir to the surface and includes a metering mechanism for selectively introducing treatment fluids into the pumping chamber during oil recovery. A specific feature of the present invention is the provision of a seating nipple for sealingly receiving the pump within the production tube of the well. In accordance with a particular feature of the present invention, a metering value is incorporated within the pump barrel thereby allowing the pump barrel and metering valve to be removed from the production tube as a unit for easy replacement and repair thereof. Furthermore, by selecting differently designed connecting adaptors, both insert type and tubing type subsurface pumps can be used with the metering valve assembly.
REFERENCES:
patent: 3802802 (1974-04-01), Greer
patent: 4573529 (1986-03-01), Reinhardt
patent: 4759407 (1988-07-01), Ripley
patent: 4791985 (1988-12-01), Flores Bermudez
Intevep S.A.
Kisliuk Bruce M.
Melius Terry Lee
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