Tandem ESP motor interconnect vent

Details Tandem ESP motor interconnect vent Tandem ESP motor interconnect vent

2006-03-23

2009-11-03

Kramer, Devon C (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S424100, C310S059000, C310S090000

Reexamination Certificate

active

07611338

ABSTRACT:
An electrical submersible well pump assembly has upper and lower motors that are filled with oil. During installation in a well, the upper motor lowers into engagement with the lower motor. The drive shafts of the motors have splined ends that engage each other within a central cavity. A vent port leads from the central cavity to the exterior for venting any trapped air located within the central cavity.

REFERENCES:
patent: 2569741 (1951-10-01), Arutunoff
patent: 3384769 (1968-05-01), Schaefer et al.
patent: 4350911 (1982-09-01), Wilson et al.
patent: 4409504 (1983-10-01), Wilson et al.
patent: 4578608 (1986-03-01), Mech et al.
patent: 4992689 (1991-02-01), Bookout
patent: 5221214 (1993-06-01), Martin
patent: 6780037 (2004-08-01), Parmeter et al.

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