MUD PULSE TELEMETRY DEVICE

摘要

In one aspect, an apparatus is disclosed including: a power supply and a rotary mud pulse telemetry device. The rotary mud pulse telemetry device includes a drive motor configured to be powered by the power supply and a rotating actuator configured to be driven by the drive motor to modulate the flow of fluid through a borehole to encode information from a down hole location. In some embodiments, the power suppiy and drive motor are configured to cooperate to drive the rotating actuator with a high torque.