Methods and apparatus to convey electrical pumping systems...

Details Methods and apparatus to convey electrical pumping systems... Methods and apparatus to convey electrical pumping systems...

2008-02-05

2010-11-23

Neuder, William P (Department: 3672)

Wells

Processes

With indicating, testing, measuring or locating

C166S065100, C166S066700

Reexamination Certificate

active

07836950

ABSTRACT:
Methods and apparatus are disclosed for conveying an electrically energized hydraulic pump into a wellbore surrounded by steel casing and thereafter using that hydraulic pump to pump oil, water and gas to the surface of the earth. The apparatus may be used as a well tractor conveyance system to service a perforated steel cased wellbore located in a geological formation that incorporates means to prevent any reverse fluid flow into the geological formation through any perforations in the steel cased wellbore during movement within the wellbore of the tractor conveyance means.

REFERENCES:
patent: 5799733 (1998-09-01), Ringgenberg et al.
patent: 6045333 (2000-04-01), Breit
patent: 6167965 (2001-01-01), Bearden et al.
patent: 7325606 (2008-02-01), Vail et al.

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