Inverted electrical submersible pump completion to maintain...

Details Inverted electrical submersible pump completion to maintain... Inverted electrical submersible pump completion to maintain...

2007-08-16

2009-12-22

Neuder, William P (Department: 3672)

Wells

Processes

Producing the well

C166S306000, C166S106000

Reexamination Certificate

active

07635030

ABSTRACT:
An electrical submersible pump (ESP) completion installed in casing perforated for water disposal and production. A packer separates the disposal zone and the production zone. An inverted ESP assembly is located inside of a canister. The ESP and canister are lowered on a tubing string into the casing. The canister has a downwardly extending canister extension flow-directing member that communicates with water in the casing and which passes through the disposal zone. Water is pumped down the canister extension member into the disposal zone and formation. Well fluids are drawn up the extension from the production zone. Various configurations are disclosed to facilitate flowing well fluids, e.g., oil-rich mixture or water passed the motor for cooling the motor of the inverted ESP while maintaining fluid segregation. The completion is particularly suited for production wells wherein the oil and water have a strong tendency to naturally segregate within the wellbore.

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patent: 7487838 (2009-02-01), Knight et al.
patent: 2003/0145989 (2003-08-01), Shaw et al.

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