Plug in pump for inverted shroud assembly

Details Plug in pump for inverted shroud assembly Plug in pump for inverted shroud assembly

2009-06-02

2011-12-20

Gay, Jennifer H (Department: 3676)

Wells

Processes

Producing the well

C166S382000, C166S068000, C166S105000

Reexamination Certificate

active

08079418

ABSTRACT:
The pump can be utilized in gassy oil wells to prevent gas slugs from locking the electrical submersible pump. A shroud assembly is provided with a bottom that can be fixed to the top of a seal section connected to the top of a motor. Additional lengths of shroud can be added as the shroud assembly is lowered into the well. The electrical submersible pump can then lowered into the shroud and supported from a production tubing string. A hanger can then be attached to the production tubing string to carry the weight of the shroud assembly, motor, and seal section.

REFERENCES:
patent: 6260627 (2001-07-01), Rivas
patent: 6412563 (2002-07-01), St. Clair et al.
patent: 6964299 (2005-11-01), Scarsdale
patent: 7367410 (2008-05-01), Sangesland
patent: 2007/0074872 (2007-04-01), Du et al.
patent: 2008/0093085 (2008-04-01), Knight et al.
John Mack and Pamela Hamblett; Increase Gas Production by Keeping ESPs Primed in High-Volume Gas Wells, pp. 38-41, based on the paper “Keeping ESPs Primed in High Volume Wells,” presented at the 2004 SPE Gulf Coast ESP Pump Workshop held Apr. 28-30, 2004 in Houston, Texas.

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