Patent ID: 8051912
Filing Date: 2011-11-08
Classification: E21B,H01F

Abstract:
1. A downhole submersible pumping system disposable in a wellbore comprising: a pump; a pump motor having a housing and coupled to the pump; a shaft coupling the pump to the pump motor; a flat three-phase power cable in electrical communication with the motor to transmit three-phase power thereto, the power cable comprising three insulated conductors each conducting electricity having a different phase and positioned within a protective cable armor containing the insulated conductors therein, the insulated conductors comprising first and second end conductors separated by a center conductor aligned within the protective cable armor to provide a flat profile; an inductive coupling device adjacent the power cable, the inductive coupling device comprising: the signaling unit in electrical communication with the power cable via the inductive coupling device and configured so that when three-phase electrical power is transmitted through the power cable, the signaling unit receives power from an inductive coupling with a first magnetic field generated around the first end conductor and a second magnetic field generated around the second end conductor, and receives data signals, transmits data signals, or both receives and transmits data signals through an inductive coupling.