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    Automated directional drilling system and method using steerable motors
    2.
    发明授权
    Automated directional drilling system and method using steerable motors 有权
    自动定向钻井系统及使用可转向马达的方法

    公开(公告)号：US09309760B2

    公开(公告)日：2016-04-12

    申请号：US13719003

    申请日：2012-12-18

    Applicant: Schlumberger Technology Corporation

    Inventor： Marc Haci ,  Eric E. Maidla

    IPC: E21B44/00 ,  E21B7/04 ,  E21B7/06 ,  E21B47/024 ,  E21B7/10

    CPC classification number: E21B44/00 ,  E21B7/04 ,  E21B7/068 ,  E21B7/10 ,  E21B47/024

    Abstract: A method for directional drilling of a wellbore includes automatically rotating a drill string having a steerable drilling motor at an end thereof in a first direction so that a measured torque related parameter thereon reaches a first value. The drill string is automatically rotated in a second direction so that the measured torque related parameter reaches a second value lower than the first value. A rate of release of the drill string is automatically controlled so that at least one of selected drilling fluid pressure and a range thereof is maintained.

    Abstract translation: 井筒的定向钻井方法包括在第一方向上自动旋转具有可转向钻井马达的钻柱，使得其测量的扭矩相关参数达到第一值。 钻柱自动地沿第二方向旋转，使得所测量的扭矩相关参数达到比第一值低的第二值。 自动控制钻柱的释放速率，使得保持选定的钻井液压力及其范围中的至少一个。

    Method and apparatus for directional drilling
    3.
    再颁专利
    Method and apparatus for directional drilling 有权
    定向钻井的方法和装置

    公开(公告)号：USRE45898E1

    公开(公告)日：2016-02-23

    申请号：US13854058

    申请日：2013-03-30

    Applicant: Schlumberger Technology Corporation

    Inventor： Eric E. Maidla ,  Marc Haci

    IPC: E21B44/00

    CPC classification number: E21B44/00 ,  E21B7/068 ,  E21B44/04

    Abstract: A method of and system for directional drilling reduces the friction between the drill string and the well bore. A downhole drilling motor is connected to the surface by a drill string. The drilling motor is oriented at a selected tool face angle. The drill string is rotated at said surface location in a first direction until a first torque magnitude without changing the tool face angle. The drill string is then rotated in the opposite direction until a second torque magnitude is reached, again without changing the tool face angle. The drill string is rocked back and forth between the first and second torque magnitudes.

    Abstract translation: 定向钻井的方法和系统可以减少钻柱与井筒之间的摩擦力。 井下钻孔马达通过钻柱连接到表面。 钻孔电机以选定的工具面角定向。 钻柱在第一方向的所述表面位置处旋转直到第一扭矩幅度而不改变刀具面角度。 然后，钻柱沿相反的方向旋转，直到达到第二扭矩幅度，而不改变工具面角度。 钻柱在第一和第二扭矩幅度之间来回摇摆。

    AUTOMATED DIRECTIONAL DRILLING SYSTEM AND METHOD USING STEERABLE MOTORS
    4.
    发明申请
    AUTOMATED DIRECTIONAL DRILLING SYSTEM AND METHOD USING STEERABLE MOTORS 有权
    自动方向钻孔系统和使用可转向电机的方法

    公开(公告)号：US20140166363A1

    公开(公告)日：2014-06-19

    申请号：US13719003

    申请日：2012-12-18

    Applicant: Schlumberger Technology Corporation

    Inventor： Marc Haci ,  Eric E. Maidla

    IPC: E21B44/00 ,  E21B7/04

    CPC classification number: E21B44/00 ,  E21B7/04 ,  E21B7/068 ,  E21B7/10 ,  E21B47/024

    Abstract: A method for directional drilling of a wellbore includes automatically rotating a drill string having a steerable drilling motor at an end thereof in a first direction so that a measured torque related parameter thereon reaches a first value. The drill string is automatically rotated in a second direction so that the measured torque related parameter reaches a second value lower than the first value. A rate of release of the drill string is automatically controlled so that at least one of selected drilling fluid pressure and a range thereof is maintained.

    Abstract translation: 井筒的定向钻井方法包括在第一方向上自动旋转具有可转向钻井马达的钻柱，使得其测量的扭矩相关参数达到第一值。 钻柱自动地沿第二方向旋转，使得所测量的扭矩相关参数达到比第一值低的第二值。 自动控制钻柱的释放速率，使得保持选定的钻井液压力及其范围中的至少一个。

    Method and apparatus for directional drilling
    5.
    再颁专利
    Method and apparatus for directional drilling 有权

    公开(公告)号：USRE46090E1

    公开(公告)日：2016-08-02

    申请号：US14279669

    申请日：2014-05-16

    Applicant: Schlumberger Technology Corporation

    Inventor： Eric E. Maidla ,  Marc Haci

    IPC: E21B44/00 ,  E21B7/06 ,  E21B44/04

    CPC classification number: E21B44/00 ,  E21B7/068 ,  E21B44/04

    Abstract: A method of and system for directional drilling reduces the friction between the drill string and the well bore. A downhole drilling motor is connected to the surface by a drill string. The drilling motor is oriented at a selected tool face angle. The drill string is rotated at said surface location in a first direction until a first torque magnitude without changing the tool face angle. The drill string is then rotated in the opposite direction until a second torque magnitude is reached, again without changing the tool face angle. The drill string is rocked back and forth between the first and second torque magnitudes.

    Method and apparatus for directional drilling
    6.
    再颁专利
    Method and apparatus for directional drilling 有权

    公开(公告)号：USRE47105E1

    公开(公告)日：2018-10-30

    申请号：US15225163

    申请日：2016-08-01

    Applicant: Schlumberger Technology Corporation

    Inventor： Eric E. Maidla ,  Marc Haci

    IPC: E21B44/00 ,  E21B7/06 ,  E21B44/04

    Abstract: A method of and system for directional drilling reduces the friction between the drill string and the well bore. A downhole drilling motor is connected to the surface by a drill string. The drilling motor is oriented at a selected tool face angle. The drill string is rotated at said surface location in a first direction until a first torque magnitude without changing the tool face angle. The drill string is then rotated in the opposite direction until a second torque magnitude is reached, again without changing the tool face angle. The drill string is rocked back and forth between the first and second torque magnitudes.

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