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    Sensor array noise reduction
    1.
    发明授权
    Sensor array noise reduction 有权

    公开(公告)号：US10337318B2

    公开(公告)日：2019-07-02

    申请号：US14517197

    申请日：2014-10-17

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Arnaud Jarrot

    IPC: E21B47/12 ,  G01R29/26 ,  H04B15/00

    Abstract: Sensor array noise reduction is provided. In one possible implementation a logging and control system includes a sensor array noise reduction manager configured to receive measurements from two or more sensors and apply a selected demixing vector to filter one or more noise sources from the measurements and improve a signal to noise ratio of a telemetry signal in the measurements. In another possible implementation a sensor array noise reduction manager for improving a signal to noise ratio of a signal includes a sensor interface configured to receive the signal, which includes information associated with an operating condition, from two or more sensors. The sensor array noise reduction manager also includes a noise reduction module to simultaneously remove noise associated with one or more noise sources from the received signal through use of a demixing vector.

    Systems and methods for determining tool center, borehole boundary, and/or mud parameter
    5.
    发明授权
    Systems and methods for determining tool center, borehole boundary, and/or mud parameter 有权

    公开(公告)号：US10539008B2

    公开(公告)日：2020-01-21

    申请号：US15762636

    申请日：2016-09-21

    Applicant: Schlumberger Technology Corporation

    Inventor： Arnaud Jarrot ,  Emmanuel Legendre

    IPC: E21B47/09 ,  E21B47/00 ,  E21B47/024 ,  G01V1/44 ,  G01V3/20

    Abstract: Systems and methods are provided for estimating the tool center position of a downhole tool, the geometry of the borehole, and/or a mud parameter based on sensor measurements from the downhole tool, even when the downhole tool center is moving over time. At least one sensor may obtain a set of measurements that relates to distance-to-borehole in a borehole at a number of azimuths. A processor may estimate a set of values defining borehole boundary and a set of positions of a center of the downhole tool in the borehole, at least in part by estimating the borehole boundary based on the set of measurements assuming a previously estimated position of the center of the downhole tool is true and estimating the position of the center of the downhole tool based on the set of measurements assuming a previously estimated borehole boundary is true, and iterating at least until convergence.

    SENSOR ARRAY NOISE REDUCTION
    7.
    发明申请
    SENSOR ARRAY NOISE REDUCTION 审中-公开
    传感器阵列噪声减少

    公开(公告)号：US20160108724A1

    公开(公告)日：2016-04-21

    申请号：US14517197

    申请日：2014-10-17

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Arnaud Jarrot

    IPC: E21B47/12 ,  H04B15/00 ,  G01R29/26

    CPC classification number: E21B47/122 ,  G01R29/26 ,  H04B15/00

    Abstract: Sensor array noise reduction is provided. In one possible implementation a logging and control system includes a sensor array noise reduction manager configured to receive measurements from two or more sensors and apply a selected demixing vector to filter one or more noise sources from the measurements and improve a signal to noise ratio of a telemetry signal in the measurements. In another possible implementation a sensor array noise reduction manager for improving a signal to noise ratio of a signal includes a sensor interface configured to receive the signal, which includes information associated with an operating condition, from two or more sensors. The sensor array noise reduction manager also includes a noise reduction module to simultaneously remove noise associated with one or more noise sources from the received signal through use of a demixing vector.

    Abstract translation: 提供传感器阵列降噪。 在一个可能的实现中，记录和控制系统包括传感器阵列噪声降低管理器，其被配置为从两个或更多个传感器接收测量值，并且应用所选择的分层矢量以从所述测量中滤除一个或多个噪声源，并提高所述测量结果的信噪比 遥测信号进行测量。 在另一可能的实施方案中，用于改善信号的信噪比的传感器阵列噪声降低管理器包括被配置为从两个或更多个传感器接收包括与操作条件相关联的信息的信号的传感器接口。 传感器阵列噪声降低管理器还包括噪声降低模块，以通过使用分层矢量从接收信号中同时消除与一个或多个噪声源相关联的噪声。

    Data rate mismatch advisor
    8.
    发明授权
    Data rate mismatch advisor 有权

    公开(公告)号：US12044122B2

    公开(公告)日：2024-07-23

    申请号：US17808772

    申请日：2022-06-24

    Applicant: Schlumberger Technology Corporation

    Inventor： Arnaud Jarrot ,  David Kirk Conn ,  Pavel Annenkov

    IPC: E21B47/12

    CPC classification number: E21B47/12

    Abstract: A method, a non-transitory computer-readable medium, and a computing system are provided for determining a telemetry mode of a signal. A drilling telemetry signal is received from a downhole tool in a wellbore. A transformation is determined based at least partially upon the drilling telemetry signal. Multiple features are extracted based at least partially upon the transformation. A decision region is identified based at least partially upon the features. A telemetry parameter is identified based at least partially upon the decision region. A telemetry mode of the drilling telemetry signal is determined based at least partially upon the telemetry parameter. The drilling telemetry signal is decoded based at least partially upon the telemetry mode.

    PUMP HARMONIC NOISE ADVISOR
    9.
    发明申请
    PUMP HARMONIC NOISE ADVISOR 有权

    公开(公告)号：US20220412212A1

    公开(公告)日：2022-12-29

    申请号：US17808651

    申请日：2022-06-24

    Applicant: Schlumberger Technology Corporation

    Inventor： Liang Sun ,  Pavel Annenkov ,  Arnaud Jarrot ,  David Kirk Conn ,  Robert Tennent ,  Richard Hunter

    IPC: E21B47/18 ,  H04B11/00 ,  H04B17/336

    Abstract: A method includes receiving a signal having a telemetry portion and a noise portion. The method may also include identifying one or more harmonic frequencies in the signal. The method may also include determining whether the one or more harmonic frequencies are in a predetermined frequency band. The method may also include determining whether a signal-to-noise ratio (SNR) of the signal is below a predetermined SNR threshold. The method may also include generating one or more notifications in response to the determination whether the one or more harmonic frequencies are in the predetermined frequency band and the determination whether the SNR is below the predetermined SNR threshold.

    DATA RATE MISMATCH ADVISOR
    10.
    发明申请
    DATA RATE MISMATCH ADVISOR 有权

    公开(公告)号：US20220412211A1

    公开(公告)日：2022-12-29

    申请号：US17808772

    申请日：2022-06-24

    Applicant: Schlumberger Technology Corporation

    Inventor： Arnaud Jarrot ,  David Kirk Conn ,  Pavel Annenkov

    IPC: E21B47/12

    Abstract: A method, a non-transitory computer-readable medium, and a computing system are provided for determining a telemetry mode of a signal. A drilling telemetry signal is received from a downhole tool in a wellbore. A transformation is determined based at least partially upon the drilling telemetry signal. Multiple features are extracted based at least partially upon the transformation. A decision region is identified based at least partially upon the features. A telemetry parameter is identified based at least partially upon the decision region. A telemetry mode of the drilling telemetry signal is determined based at least partially upon the telemetry parameter. The drilling telemetry signal is decoded based at least partially upon the telemetry mode.

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