MUD PULSE TELEMETRY

摘要

Mud pulse telemetry. The various embodiments are directed to methods and systems of encoding data in a mud pulse telemetry system, where at least a portion of the data is encoded the time between pressure transitions. Moreover, the various embodiments are directed to detection methods and systems that detect the pressure transitions at the surface.

主权项

1. A computer-readable storage medium storing a program that, when executed by a processor, causes the processor to:
read values indicative of pressure within a pipe that has drilling fluid flowing therein, the drilling fluid carries pressure pulses that encode data; detect, in the values indicative of pressure, pressure transitions associated with the pressure pulses by causing the processor to:
create a filtered pressure time series from the values indicative of pressure;take the absolute value of the filtered pressure time series; anddetect pressure transitions as pressure spikes in the absolute value of the filtered pressure time series; decode from an amount of time between pressure transitions at least a portion of the data encoded in the drilling fluid.