MAGNETOMETER BIAS AND EDDY CURRENT COMPENSATION FOR DYNAMIC SURVEYING

    公开(公告)号:US20240337182A1

    公开(公告)日:2024-10-10

    申请号:US18296588

    申请日:2023-04-06

    CPC classification number: E21B47/024 E21B7/04 E21B44/00 G01P15/18

    Abstract: A method for drilling a subterranean wellbore includes rotating a bottom hole assembly (BHA) in the subterranean wellbore to drill, in which the BHA includes a drill collar, a drill bit, a roll-stabilized housing deployed in the drill collar and configured to rotate with respect to the drill collar, and triaxial accelerometer and triaxial magnetometer sets deployed in the roll-stabilized housing. Triaxial accelerometer and triaxial magnetometer measurements and a drill collar rotation rate measurement are made while the BHA rotates. A wellbore inclination and a gravity tool face of the roll-stabilized housing are computed from the triaxial accelerometer measurements. The computed inclination and gravity toolface, the triaxial magnetometer measurements, and the measured rotation rate of the drill collar are processed to compute an azimuth of the subterranean wellbore in which influences of eddy currents and magnetometer biases are accounted.

    EQUIPMENT HEALTH MONITOR
    3.
    发明公开

    公开(公告)号:US20240200436A1

    公开(公告)日:2024-06-20

    申请号:US18066415

    申请日:2022-12-15

    CPC classification number: E21B44/00

    Abstract: A tool health manager may receive surface contextual data of the downhole drilling system. A tool health manager may receive downhole contextual data of the downhole drilling system, the downhole contextual data including downhole operating data for a downhole tool. A tool health manager may synchronize the downhole contextual data with the surface contextual data to generate synchronized data. A tool health manager may prepare a historical comparison between historical data and the synchronized data. A tool health manager may, based on the historical comparison, generate a tool health status of the downhole tool.

    REAL TIME SURVEYING WHILE DRILLING IN A ROLL-STABILIZED HOUSING

    公开(公告)号:US20220251938A1

    公开(公告)日:2022-08-11

    申请号:US17628583

    申请日:2020-07-22

    Abstract: A method for drilling a subterranean wellbore includes rotating a drill string in the wellbore to drill. The drill string includes a roll-stabilized housing deployed in a drill collar and survey sensors deployed in the roll-stabilized housing. Sensor measurements are acquired while the drill string is rotating. High bandwidth accelerometer measurements may be obtained by combining triaxial accelerometer measurements and gyroscopic sensor measurements. Survey parameters, including a wellbore azimuth, may be computed from the high bandwidth accelerometer measurements. Triaxial magnetometer measurements may be processed to compute an eddy current induced wellbore azimuth error which may be removed from a previously computed wellbore azimuth to obtain a corrected wellbore azimuth.

    Equipment health monitor
    5.
    发明授权

    公开(公告)号:US12252974B2

    公开(公告)日:2025-03-18

    申请号:US18066415

    申请日:2022-12-15

    Abstract: A tool health manager may receive surface contextual data of the downhole drilling system. A tool health manager may receive downhole contextual data of the downhole drilling system, the downhole contextual data including downhole operating data for a downhole tool. A tool health manager may synchronize the downhole contextual data with the surface contextual data to generate synchronized data. A tool health manager may prepare a historical comparison between historical data and the synchronized data. A tool health manager may, based on the historical comparison, generate a tool health status of the downhole tool.

    Magnetometer bias and eddy current compensation for dynamic surveying preliminary

    公开(公告)号:US12123297B1

    公开(公告)日:2024-10-22

    申请号:US18296588

    申请日:2023-04-06

    CPC classification number: E21B47/024 E21B7/04 E21B44/00 G01P15/18

    Abstract: A method for drilling a subterranean wellbore includes rotating a bottom hole assembly (BHA) in the subterranean wellbore to drill, in which the BHA includes a drill collar, a drill bit, a roll-stabilized housing deployed in the drill collar and configured to rotate with respect to the drill collar, and triaxial accelerometer and triaxial magnetometer sets deployed in the roll-stabilized housing. Triaxial accelerometer and triaxial magnetometer measurements and a drill collar rotation rate measurement are made while the BHA rotates. A wellbore inclination and a gravity tool face of the roll-stabilized housing are computed from the triaxial accelerometer measurements. The computed inclination and gravity toolface, the triaxial magnetometer measurements, and the measured rotation rate of the drill collar are processed to compute an azimuth of the subterranean wellbore in which influences of eddy currents and magnetometer biases are accounted.

    Real time surveying while drilling in a roll-stabilized housing

    公开(公告)号:US11898432B2

    公开(公告)日:2024-02-13

    申请号:US17628583

    申请日:2020-07-22

    CPC classification number: E21B44/00 E21B47/0228

    Abstract: A method for drilling a subterranean wellbore includes rotating a drill string in the wellbore to drill. The drill string includes a roll-stabilized housing deployed in a drill collar and survey sensors deployed in the roll-stabilized housing. Sensor measurements are acquired while the drill string is rotating. High bandwidth accelerometer measurements may be obtained by combining triaxial accelerometer measurements and gyroscopic sensor measurements. Survey parameters, including a wellbore azimuth, may be computed from the high bandwidth accelerometer measurements. Triaxial magnetometer measurements may be processed to compute an eddy current induced wellbore azimuth error which may be removed from a previously computed wellbore azimuth to obtain a corrected wellbore azimuth.

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