Method and system for pumping in an oil well

Details Method and system for pumping in an oil well Method and system for pumping in an oil well

2007-11-06

2007-11-06

Bagnell, David (Department: 3672)

Wells

Processes

Separating material entering well

C166S068500, C166S105200

Reexamination Certificate

active

10937388

ABSTRACT:
An effluent pumping method and system include a pump having a rotor and a stator, the rotor being fastened by a first end to a tubular driving string; a device for driving the string into rotation; and a riser having at least one orifice. The riser is fastened to the rotor at the second end thereof, and the rotor includes a line which communicates the inner space of the driving string with the inner space of the riser.

REFERENCES:
patent: 4100967 (1978-07-01), Allen et al.
patent: 4223728 (1980-09-01), Pegg
patent: 5829529 (1998-11-01), Cholet et al.
patent: 6190141 (2001-02-01), Henry
patent: 6543543 (2003-04-01), Muth
patent: 2 727 475 (1996-05-01), None

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