Patent ID: 8851165

Claim:
A pumping system, comprising: a submersible electric motor operable to rotate a drive shaft; a pump rotationally connected to the drive shaft and comprising a rotor having one or more helicoidal vanes; an isolation device operable to engage a production tubing string, thereby fluidly isolating an inlet of the pump from an outlet of the pump and rotationally connecting the motor and the pump to the production tubing string; a cablehead operable to receive a lower end of a power cable; and a submersible power conversion module (PCM) operable to: receive a direct current power signal from the cablehead, and supply a second power signal to the motor, wherein: the motor and the pump are operable at greater than or equal to ten thousand RPM, the pump further comprises a stator having a housing and a diffuser, a Venturi passage is formed between the rotor and the housing and between the housing and the diffuser, the diffuser has one or more vanes located at a throat of the Venturi passage, and the diffuser vanes are operable to negate swirl imparted by the helicoidal vanes.