Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate
2006-01-03
2006-01-03
Freay, Charles G. (Department: 3746)
Pumps
Motor driven
Electric or magnetic motor
C417S423300, C310S087000
Reexamination Certificate
active
06981853
ABSTRACT:
A system and method for protecting a motor for a submersible pumping system. A variety of motor protectors are provided for application in variable temperature environments and multiple wellbore orientations. The motor protectors may include one or more of a positively pressurized bellows, a relatively balanced pressure bellows free of sliding seals, and a multi-orientable labyrinth. Each of these motor protectors also may have various moisture absorbents, filters, particle shedders and various conventional motor protector components.
REFERENCES:
patent: 3384769 (1968-05-01), Schaefer et al.
patent: 6602059 (2003-08-01), Howell et al.
patent: 6688860 (2004-02-01), Du et al.
Arumugam Arunkumar
Du Michael H.
Kishino Ashley C.
Lee Lawrence C.
Castano Jamie A.
Freay Charles G.
Galloway Bryan P.
Schlumberger Technology Corporation
Van Someren, P.C.
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