Electric submersible pump (ESP) with recirculation capability

Details Electric submersible pump (ESP) with recirculation capability Electric submersible pump (ESP) with recirculation capability

2007-12-21

2010-11-30

Gay, Jennifer H (Department: 3676)

Wells

With eduction pump or plunger

C166S057000, C166S302000, C166S369000, C417S423800

Reexamination Certificate

active

07841395

ABSTRACT:
A submersible pumping system for use downhole, wherein the system includes a first pump, a second pump, a recirculation coupling between the first and second pumps, and a recirculation line for directing cooling flow across the pump motor. The pumps and coupling are independent modular items connected together. Optionally, a multi-stage pump may be retrofitted with the coupling for creating a cooling flow.

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International Search Report and Written Opinion, dated Jul. 20, 2009, 12 pages.

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