Devices and methods for filtering pump interference in mud pulse telemetry
AssigneeHalliburton Energy Services, Inc.
InventorsEhud Barak, Yumin Zhang
Life of this patent
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Abstract
Systems and methods for filtering pump interference in mud pulse telemetry are provided. A method includes receiving a monitor output, selecting an adaptive factor in an adaptive filter module, and adjusting the adaptive factor when the adaptive filter module has reached convergence. The method may further include receiving a sensor input, providing a filtered signal output, and modifying a drill configuration based on the signal output. A system configured to perform the method above is provided. A method as above further including modifying a drill configuration based on the signal output is provided.
Claims20
A method, comprising:
- receiving a monitor output and a sensor input;
- selecting an adaptive factor in an adaptive filter module;
- adjusting the adaptive factor until the adaptive filter module has reached convergence, wherein the adaptive factor, the sensor input, and the monitor output are utilized to determine coefficients of the adaptive filter module, wherein convergence of the coefficients is indicative of the convergence of the adaptive filter module;
- and wherein the monitor output is a stroke monitor signal from a mud pump in a drilling system, the stroke monitor signal indicating an amplitude of a stroke of the mud pump over time;
- providing a filtered signal output based on the coefficients of the adaptive filter module and the sensor input;
- and
- modifying a drill configuration based on the filtered signal output.
A device, comprising:
- a memory circuit storing commands;
- a processor circuit configured to execute the commands, causing the device to:
- receive a monitor output and a sensor input;
- select an adaptive factor in an adaptive filter module;
- adjust the adaptive factor until the adaptive filter module has reached convergence, wherein the adaptive factor, the sensor input, and the monitor output are utilized to determine coefficients of the adaptive filter module;
- wherein convergence of the coefficients is indicative of the convergence of the adaptive filter module;
- and wherein the monitor output is a stroke monitor signal from a mud pump in a drilling system, the stroke monitor signal indicating an amplitude of a stroke of the mud pump over time;
- provide a filtered signal output based on the coefficients of the adaptive filter module and the sensor input;
- and
- modify a drill configuration based on the filtered signal output.
A method, comprising:
- receiving a stroke monitor signal;
- increasing a bandwidth of the stroke monitor signal to form an adaptive filter input, wherein increasing the bandwidth of the stroke monitor signal comprises removing a portion of the stroke monitor signal between a rising edge and a falling edge;
- applying an adaptive filter to the adaptive filter input;
- adjusting the adaptive filter to reduce an error;
- receiving a pressure sensor input;
- filtering a pump interference from the received pressure sensor input;
- and
- adjusting a drilling configuration based on the filtered pressure sensor input.
Dependencies are inferred from the claim text.