Systems and methods for determining angular and translational acceleration at a drill bit
AssigneeBaker Hughes Oilfield Operations LLC
InventorsXu Huang, Armin Kueck, Eugene Stolboushkin, John Abhishek Raj Bomidi
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Abstract
A method of deriving angular acceleration of a drill bit includes receiving data from one or more sensors of a sensor module installed on a drill bit. The one or more sensors include at least one accelerometer and at least one rotational motion sensor. The data received from the one or more sensors may be filtered. Angular velocity and angular acceleration are calculated from acceleration data received from the at least one accelerometer in response to a determination that the at least one rotational motion sensor is not providing accurate data.
Claims20
A method of deriving angular acceleration of a drill bit, the method comprising:
- receiving data from one or more sensors of a sensor module installed on a drill bit, the one or more sensors comprising at least one accelerometer and at least one rotational motion sensor;
- filtering the data received from the one or more sensors;
- and
- calculating angular velocity and angular acceleration at the drill bit from acceleration data received from the at least one accelerometer in response to a determination that the at least one rotational motion sensor is missing data or is providing data outside of a predetermined range.
A method of deriving translational acceleration of a drill bit, the method comprising:
- receiving data from one or more sensors of a sensor module installed on a drill bit, the one or more sensors comprising at least one accelerometer and at least one rotational motion sensor;
- filtering the data received from the one or more sensors;
- deriving translational acceleration at the drill bit from accelerometer data from the at least one accelerometer;
- determining that the accelerometer data from the at least one accelerometer includes clipped data where a magnitude of an acceleration is greater than a measurement capacity of the at least one accelerometer;
- and
- filtering the accelerometer data to remove the clipped data when it is determined the accelerometer data from the at least one accelerometer includes the clipped data.
A method for deriving translational acceleration of a drill bit from at least one accelerometer installed on a drill bit, the method comprising:
- receiving accelerometer data from the at least one accelerometer;
- determining the accelerometer data comprises clipped data indicating that an acceleration along a measurement axis of the at least one accelerometer exceeds a measurement capacity of the at least one accelerometer,
- filtering the clipped data from the accelerometer data based on frequencies of torsional vibrations of the drill bit;
- and
- determining translation acceleration based on the filtered accelerometer data.
Dependencies are inferred from the claim text.