Motors for electrical submersible pumps

H - Electricity – 02 – K

Patent

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Details

H02K 5/128 (2006.01) F04D 13/10 (2006.01) H02K 5/132 (2006.01) H02K 21/00 (2006.01) E21B 43/12 (2006.01)

Patent

CA 2620650

A method of pumping wellbore fluid, comprising the steps of: installing an electric submersible pump in a wellbore; and operating the pump at more than 4,500 rpm to pump the wellbore fluid. Pumping in this manner provides a number of advantages in use in that the required high-speed motor and pump is shorter for a given power than existing arrangements, and provides increased reliability due to reduced complexity. A much shorter motor/pump combination also allows such equipment to be used in deviated boreholes with a reduction in damage due to mishandling and bending, as well as facilitating assembly and testing in the manufacturer's plant.

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