Downhold motor cooling and protection system

Details Downhold motor cooling and protection system Downhold motor cooling and protection system

1994-04-22

1996-09-10

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 87, 4174238, H02K 919, H02K 900, H02K 512, F04B 1703

Patent

active

055548970

ABSTRACT:
The motor cooling and protection system has a shroud concentrically disposed about a motor housing of a downhole motor. The shroud is sealed from well fluids in the well and defines and annular chamber between the motor housing and the shroud. A longitudinal annular baffle is located in the chamber and partitions the chamber into two annular and concentric sub-chambers. The two sub-chambers have axially spaced apart communication openings such that the two sub-chambers are in fluid communication with each other. A cooling fluid having high conductive heat transfer rates is located in the chamber for circulating between the two sub-chambers, through the communication openings, to facilitate and enhance the transfer of heat between the motor and the well fluids.

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"A Safer, Longer-Lasting Antioxidant?", B. J. Spalding, Jan. 6-13, 1988, Section: Technology, Chemical Week.

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