Invention Grant
US09206644B2 Positive displacement motor (PDM) rotary steerable system (RSS) and apparatus 有权
正位移电机(PDM)旋转导向系统(RSS)和装置

Positive displacement motor (PDM) rotary steerable system (RSS) and apparatus
Abstract:
A motor steering system includes a drill collar, a transmitter circuit having a power transmitting coil, a rotor, and a receiver circuit having a power receiving coil. The transmitter circuit is coupled to the drill collar and the receiver circuit is coupled to the rotor such that the transmitter circuit and the receiver circuit are positioned with respect to one another such that power is coupled from the power transmitting coil to the power receiving coil whereby the drill collar provides electric power to the rotor.
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