WHIPSTOCK ASSEMBLY AND METHOD OF MANUFACTURE
    2.
    发明申请
    WHIPSTOCK ASSEMBLY AND METHOD OF MANUFACTURE 审中-公开
    发电机组件及其制造方法

    公开(公告)号:WO2003087524A1

    公开(公告)日:2003-10-23

    申请号:PCT/US2003/011455

    申请日:2003-04-14

    CPC classification number: E21B17/1007 E21B7/061

    Abstract: The present invention discloses a whipstock assembly (100) for use in forming a lateral borehole from a parent wellbore. The whipstock assembly comprises a body (122) and a deflection member 120) above the body. The deflection member includes a concave portion (111) for deflecting a milling bit during a milling operation. Disposed on a perforation plate (110) portion of the concave portion is a raised surface feature (116). The raised surface supports a milling bit above the perforation plate portion during a milling operation. This, in turn, substantially prevents frictional contact between the milling bits and the perforation plate portion during a milling operation. The present invention also provides a novel method for manufacturing a whipstock in which a cavity portion is formed behind the perforation plate by milling out the backside of the deflection member and then joining a second back cover member to the whipstock body to complete the assembly.

    Abstract translation: 本发明公开了一种用于从母井孔形成侧向钻孔的造斜器组件(100)。 造斜器组件包括主体(122)和偏转构件120)。 偏转构件包括用于在铣削操作期间偏转铣刀的凹部(111)。 设置在凹部的穿孔板(110)部分上的是凸起表面特征(116)。 在铣削操作期间,凸起表面支撑穿孔板部分上方的铣刀头。 这又在铣削操作期间基本上防止了铣头和穿孔板部分之间的摩擦接触。 本发明还提供了一种制造造斜器的新方法,其中通过铣削偏转构件的后侧然后将第二后盖构件连接到造斜器本体来完成组件,在穿孔板后面形成空腔部分。

    RELEASING AND RECOVERING TOOL
    3.
    发明申请
    RELEASING AND RECOVERING TOOL 审中-公开
    释放和恢复工具

    公开(公告)号:WO2008024791A2

    公开(公告)日:2008-02-28

    申请号:PCT/US2007/076442

    申请日:2007-08-21

    CPC classification number: E21B23/14 E21B17/023 E21B17/06 E21B47/00

    Abstract: Apparatus and methods for selectively releasing a first wellbore component to a second wellbore component using a disconnect device. In one embodiment, the method includes coupling a disconnect device to a workstring and a downhole tool; performing a downhole operation using the downhole tool, and selectively releasing an upper portion of the disconnect device from a lower portion of the disconnect device, thereby releasing the downhole tool from the workstring. The method may also include reconnecting the upper portion of the disconnect device to the lower portion of the disconnect device. In one embodiment, the disconnect device is capable of transferring torque to the wellbore component.

    Abstract translation: 用于使用断开装置将第一井筒部件选择性地释放到第二井眼部件的装置和方法。 在一个实施例中,该方法包括将断开装置连接到工作绳和井下工具; 使用井下工具执行井下操作,并且从断开装置的下部选择性地释放断开装置的上部,从而将井下工具从工作绳上释放。 该方法还可以包括将断开装置的上部重新连接到断开装置的下部。 在一个实施例中,断开装置能够将扭矩传递到井筒部件。

    EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE
    4.
    发明申请
    EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE 审中-公开
    可扩展的切割工具在井眼中使用

    公开(公告)号:WO2010054407A1

    公开(公告)日:2010-05-14

    申请号:PCT/US2009/063934

    申请日:2009-11-10

    CPC classification number: E21B10/32 E21B10/322 E21B10/327

    Abstract: Embodiments of the present invention generally relate to extendable cutting tools for use in a wellbore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

    Abstract translation: 本发明的实施例一般涉及用于井眼的可延伸的切削工具。 在一个实施例中,用于井眼的工具包括具有穿过其中的孔的管状体,穿过其壁的开口,以及在其每个纵向端的连接器; 和一只手臂。 所述臂枢转地连接到第一活塞并且旋转地联接到所述主体,所述臂在缩回位置处设置在所述开口中,并且可移动到所述臂的外表面向外延伸穿过所述主体的外表面的延伸位置。 该工具还包括第一活塞。 第一活塞设置在身体孔中,具有穿过其中的孔,并且可操作以响应于活塞孔中的流体压力而将臂从缩回位置移动到延伸位置,超过开口中的流体压力。 该工具还包括可操作以将第一活塞保持在缩回位置的锁; 以及可操作地联接到所述锁的第二活塞。

    RELEASING AND RECOVERING TOOL
    7.
    发明申请
    RELEASING AND RECOVERING TOOL 审中-公开
    释放和恢复工具

    公开(公告)号:WO2008024791A3

    公开(公告)日:2008-04-17

    申请号:PCT/US2007076442

    申请日:2007-08-21

    CPC classification number: E21B23/14 E21B17/023 E21B17/06 E21B47/00

    Abstract: Apparatus and methods for selectively releasing a first wellbore component (30) to a second wellbore component (40) using a disconnect device. In one embodiment, the method includes coupling a disconnect device (20) to a workstring (40) and a downhole tool (30); performing a downhole operation using the downhole tool, and selectively releasing an upper portion of the disconnect device from a lower portion of the disconnect device, thereby releasing the downhole tool from the workstring. The method may also include reconnecting the upper portion of the disconnect device to the lower portion of the disconnect device. In one embodiment, the disconnect device is capable of transferring torque to the wellbore component.

    Abstract translation: 用于使用断开装置将第一井筒部件(30)选择性地释放到第二井筒部件(40)的装置和方法。 在一个实施例中,该方法包括将断开装置(20)连接到工作绳(40)和井下工具(30); 使用所述井下工具进行井下操作,并且从所述断开装置的下部选择性地释放所述断开装置的上部,从而将所述井下工具从所述工作绳排出。 该方法还可以包括将断开装置的上部重新连接到断开装置的下部。 在一个实施例中,断开装置能够将扭矩传递到井筒部件。

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