Apparatus for production of crude oil

Details Apparatus for production of crude oil Apparatus for production of crude oil

1994-01-10

1995-07-11

Dang, Hoang C.

Wells

With eduction pump or plunger

Having sediment trap or deflector

166106, 166310, E21B 4300

Patent

active

054312221

ABSTRACT:
A system for improving production of crude oil from an underground reservoir by the injection of treatment fluids includes a well casing, a production tube located within said well casing and defining therewith an annular space for receiving treatment fluids, a packer located within said annular space for isolating said annular space from a reservoir, a pump disposed in said production tube and having an inlet valve for receiving fluids to be pumped and a mixing shoe for mixing treatment fluids from said annular space with crude oil from said reservoir so as to form a substantially homogeneous mixture of said oil and said fluids in said production tube below said inlet valve of said pump.

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patent: 4366862 (1983-01-01), Brandell
patent: 4573529 (1986-03-01), Reinhardt
patent: 4791985 (1988-12-01), Bermudez
patent: 4974673 (1990-12-01), Chacin
patent: 4988389 (1991-01-01), Adamache et al.

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