Downhole pump driven by injection water

Details Downhole pump driven by injection water Downhole pump driven by injection water

2007-04-24

2007-04-24

Neuder, William P. (Department: 3672)

Wells

With means for separately pumping from plural sources in well

C166S106000

Reexamination Certificate

active

10468092

ABSTRACT:
A method and apparatus for improving the performance of production-injection wells whereby a pump (35), driven by a hydraulic turbine (32) sharing the same central shaft (33, 34), is run and set in an oil-producing well. The oil enters the annulus of the well from the production zone and is induced into the pump to be forced to the wellhead; the injection water is forced down the wellbore to drive the turbine whereafter the injection water exhausts through the pump to be injected into the underlying aquifer thereby providing additional pressure support to the producing zone.

REFERENCES:
patent: 3882946 (1975-05-01), Ioannesian et al.
patent: 6019583 (2000-02-01), Wood
patent: 6056054 (2000-05-01), Brady et al.
patent: 2001/0007283 (2001-07-01), Johal et al.
patent: 2003/0047309 (2003-03-01), Thomas et al.
patent: 2 311 312 (1998-03-01), None
patent: 2 324 108 (1998-10-01), None
patent: 2 358 202 (2001-07-01), None

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