Insertable progressive cavity pump systems and methods of...

Details Insertable progressive cavity pump systems and methods of... Insertable progressive cavity pump systems and methods of...

2011-01-25

2011-01-25

Thompson, Kenneth (Department: 3672)

Wells

Processes

Producing the well

C166S068000

Reexamination Certificate

active

07874368

ABSTRACT:
A progressive cavity pump system. In an embodiment, the system comprises a tubing string disposed within a borehole. The tubing string including a seating nipple disposed at a predetermined depth in the tubing string. In addition, the system comprises a stator positioned within the tubing string. The stator includes a radially outer housing having an upper end and a lower end, a radially inner liner having a helical-shaped inner surface, a seating mandrel coupled to the upper end of the housing. Further, the system comprises a seal element disposed about the seating mandrel. The seal element forms a static seal with the inner surface of the seating nipple.

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International Search Report and Written Opinion dated Apr. 21, 2009 for Appl. No. PCT/US2008/077788; (14 p.).

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