Drilling Apparatus and Method
    1.
    发明申请
    Drilling Apparatus and Method 有权
    钻孔设备及方法

    公开(公告)号:US20100108383A1

    公开(公告)日:2010-05-06

    申请号:US12264827

    申请日:2008-11-04

    CPC classification number: E21B7/067 E21B47/024

    Abstract: A drilling apparatus includes an upper drill string, a lower drill string including a rotary drilling motor, an orientable rotatable connection between the drill strings, a reactive torque control device associated with the orientable rotatable connection, an orientation sensing device for providing a sensed actual orientation of the lower drill string, and a feedback control system configured to actuate the control device in response to the sensed actual orientation to achieve a target orientation of the lower drill string. A drilling method includes actuating the control device to prevent relative rotation of the drill strings, providing a sensed actual orientation of the lower drill string, comparing the sensed actual orientation with a target orientation of the lower drill string, actuating the control device to allow the lower drill string to rotate to provide the target orientation, and actuating the control device to prevent relative rotation of the drill strings.

    Abstract translation: 一种钻井设备包括上钻柱,包括旋转钻井马达的下钻柱,钻柱之间的可定向可旋转连接,与可定向可旋转连接相关联的反作用扭矩控制装置,用于提供感测到的实际方位 以及反馈控制系统,其被配置为响应于所感测的实际取向来致动所述控制装置以实现所述下钻柱的目标取向。 钻井方法包括致动控制装置以防止钻柱的相对旋转,提供感测到的下钻柱的实际取向,将感测到的实际方向与下钻柱的目标方向进行比较,致动控制装置以允许 下钻柱旋转以提供目标方向,并且致动控制装置以防止钻柱的相对旋转。

    Drilling apparatus and method
    2.
    发明授权
    Drilling apparatus and method 有权
    钻孔设备及方法

    公开(公告)号:US08322461B2

    公开(公告)日:2012-12-04

    申请号:US12264827

    申请日:2008-11-04

    CPC classification number: E21B7/067 E21B47/024

    Abstract: A drilling apparatus includes an upper drill string, a lower drill string including a rotary drilling motor, an orientable rotatable connection between the drill strings, a reactive torque control device associated with the orientable rotatable connection, an orientation sensing device for providing a sensed actual orientation of the lower drill string, and a feedback control system configured to actuate the control device in response to the sensed actual orientation to achieve a target orientation of the lower drill string. A drilling method includes actuating the control device to prevent relative rotation of the drill strings, providing a sensed actual orientation of the lower drill string, comparing the sensed actual orientation with a target orientation of the lower drill string, actuating the control device to allow the lower drill string to rotate to provide the target orientation, and actuating the control device to prevent relative rotation of the drill strings.

    Abstract translation: 一种钻井设备包括上钻柱,包括旋转钻井马达的下钻柱,钻柱之间的可定向可旋转连接,与可定向可旋转连接相关联的反作用扭矩控制装置,用于提供感测到的实际方位 以及反馈控制系统,其被配置为响应于所感测的实际取向来致动所述控制装置以实现所述下钻柱的目标取向。 钻井方法包括致动控制装置以防止钻柱的相对旋转,提供感测到的下钻柱的实际取向,将感测到的实际方向与下钻柱的目标方向进行比较,致动控制装置以允许 下钻柱旋转以提供目标方向,并且致动控制装置以防止钻柱的相对旋转。

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