Multi-shot LLC

James Huber

Allen Richard Young

Michael M Meadows

Laura Fore

A mud pulser tool to be positioned into a downhole environment is disclosed. The mud pulser tool includes a control valve that is selectively opened to allow fluid to flow through the mud pulser tool or selectively closed to restrict the fluid flow, wherein the control valve is selectively opened or closed to produce a mud pulse signal transmitted through the fluid. The mud pulser tool also includes a sensor system to measure a pressure drop across the control valve. In one example, the mud pulser tool includes a control system to selectively open or close the control valve to adjust the pressure drop to produce a selected pressure drop across the control valve.

Mud pulse telemetry system

A system and method for transmitting mud pulse signals in a downhole environment may utilize a shape memory alloy. In one embodiment, a mud pulser system includes a valve; a wire comprising shape memory alloy (SMA), and operable to have a first shape at a first temperature and a second shape at a second temperature; a thermal energy source to heat the wire from the first temperature to the second temperature; and a valve poppet coupled to the wire, wherein the valve poppet is extended to close the valve when the wire is in the first shape and wherein the valve poppet is retracted to open the valve when the wire is in the second shape.

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Pearland, TX, United States of America

James Huber