Electric submersible pump with specialized geometry for...

Details Electric submersible pump with specialized geometry for... Electric submersible pump with specialized geometry for...

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 7/04 (2006.01) E21B 43/12 (2006.01)

Patent

CA 2419458

A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and diffusers have specific geometry that varies with viscosity. The pump has zones of impellers and diffusers with the exit angles and geometry in the zones differing from the other zones. The exit angles decrease and geometry varies in a downstream direction to account for a lower viscosity occurring due to heat being generated in the pump. One design employs small diameter impellers and high rotational speeds.

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