Retrievable downhole pumping system

Details Retrievable downhole pumping system Retrievable downhole pumping system

2008-09-02

2008-09-02

Gay, Jennifer H (Department: 3672)

Wells

Processes

Producing the well

C166S377000, C166S068500, C166S105000, C417S360000

Reexamination Certificate

active

11248090

ABSTRACT:
A pumping system10is provided for pumping fluid from a downhole well to the surface through a production tubing string well. A rotatable drive rod18extends from the surface to power the downhole pump, and includes a plurality of rod couplings. The downhole pump includes a pump stator22and a rotor24rotatable within the pump stator. A lifting member36provided at the upper end of the stator is engaged by a drive coupling34to retrieve the pump from the well. The lifting member has an internal shoulder44tapered radially inwardly and upwardly, such that a rod coupling engages the internal shoulder and passes through the lifting member as the rotor is pulled upward.

REFERENCES:
patent: 4957161 (1990-09-01), Cholet et al.
patent: 5143153 (1992-09-01), Bach et al.
patent: 5871051 (1999-02-01), Mann
patent: 5954483 (1999-09-01), Tetzlaff
patent: 6089832 (2000-07-01), Patterson
patent: 6675902 (2004-01-01), Rowan et al.
patent: 6695060 (2004-02-01), Guidry, Jr. et al.
patent: 6881045 (2005-04-01), Zitka et al.
patent: 6981045 (2005-12-01), Brooks
patent: 2003/0111221 (2003-06-01), Hill et al.

Affiliated with

Also associated with

Rating

Retrievable downhole pumping system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Retrievable downhole pumping system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retrievable downhole pumping system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3941868