Electric submersible pump and motor assembly

Details Electric submersible pump and motor assembly Electric submersible pump and motor assembly

2008-01-18

2010-06-08

Neuder, William P (Department: 3676)

Wells

With electrical means

Electrical motor

C166S066000, C166S105000, C166S254200

Reexamination Certificate

active

07730937

ABSTRACT:
An assembly for downhole applications comprises has an electric motor, a pump driven by the electric motor and having a lower pump inlet and an upper pump outlet, and a deployment tube from which the assembly is suspended from and by means of which the assembly can be lowered through the well. A nonrotating hollow shaft forms a bore extending from the tube through the motor and the pump to an assembly opening at the bottom of the assembly such that a device suspended on a wireline or coiled tube may be lowered through the deployment tube and pass through the electric motor and pump to a part of the well below the pump inlet. The motor is linked outside the bore to the pump for driving the pump.

REFERENCES:
patent: 6120261 (2000-09-01), Al-Towailib
patent: 6510899 (2003-01-01), Sheiretov et al.
patent: 7299873 (2007-11-01), Hartman et al.

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