H - Electricity – 02 – P
Patent
H - Electricity
02
P
H02P 31/00 (2006.01) E21B 43/12 (2006.01) F04B 47/06 (2006.01) F04B 49/06 (2006.01) F04D 13/08 (2006.01) F04D 15/00 (2006.01) H02K 11/00 (2006.01)
Patent
CA 2713751
A system for determining whether a motor in an electrical submersible pump is backspinning is described herein. The system comprises a sensor mounted in a well bore proximate to a ground surface, the sensor outputting a backspin signal; a communication link connected to the sensor, the communications link communicating the backspin signal; and a controller receiving the backspin signal from the communications link and processing the backspin signal to determine whether the motor is backspinning. Computer readable instructions associated with the system perform the steps of. monitoring the signal to determine whether the signal is above a threshold, the threshold for determining whether the signal is a noise signal or a backspin signal, and outputting the backspin signal; impeding operable AC power to the motor, responsive to the backspin signal; monitoring the backspin signal to determine whether the backspin signal is below the threshold; and returning AC power to the motor responsive to the determination that the backspin signal is below the threshold.
Allen Robert D.
Carter William
Knox Dick L.
Mccoy Robert H.
Rider Jerald R.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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