TELEMETRY OPERATED CIRCULATION SUB
    3.
    发明申请

    公开(公告)号:WO2012100259A3

    公开(公告)日:2012-07-26

    申请号:PCT/US2012/022253

    申请日:2012-01-23

    Abstract: A method of drilling a wellbore includes drilling the wellbore by injecting drilling fluid through a drill string extending into the wellbore from surface and rotating a drill bit of the drill string. The drill string further includes a circulation sub having a port closed during drilling. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The drilling fluid and cuttings (returns) flow to the surface via an annulus formed between an outer surface of the tubular string and an inner surface of the wellbore. The method further includes after drilling at least a portion of the wellbore: halting drilling; sending a wireless instruction signal from the surface to a downhole portion of the drill string by articulating the drill string, acoustic signal, or mud pulse, thereby opening the port; and injecting drilling fluid through the drill string and into the annulus via the open port.

    SUBSEA DRILLING WITH CASING
    4.
    发明申请
    SUBSEA DRILLING WITH CASING 审中-公开
    用套管进行海底钻探

    公开(公告)号:WO2010057221A3

    公开(公告)日:2010-11-11

    申请号:PCT/US2009064875

    申请日:2009-11-17

    Abstract: A method of forming a wellbore includes providing a drilling assembly comprising one or more lengths of casing and an axially retracting assembly having a first tubular; a second tubular at least partially disposed in the first tubular and axially fixed thereto; and a support member disposed in the second tubular and movable from a first axial position to a second axial position relative to the second tubular, wherein, in the first axial position, the support member maintains the second tubular axially fixed to the first tubular, and in the second axial position, allows the second tubular to move relative to the first tubular; and an earth removal member disposed below the axially retracting assembly. The method also includes rotating the earth removal member to form the wellbore; moving the support member to the second axial position; and reducing a length of the axially retracting assembly.

    Abstract translation: 一种形成井筒的方法包括提供包括一段或多段套管的钻探组件和具有第一管的轴向回缩组件; 至少部分地设置在所述第一管件中并且轴向固定在其上的第二管件; 以及支撑构件,所述支撑构件设置在所述第二管件中并且能够相对于所述第二管件从第一轴向位置移动到第二轴向位置,其中,在所述第一轴向位置中,所述支撑构件保持所述第二管件轴向固定到所述第一管件,并且 在第二轴向位置允许第二管相对于第一管移动; 以及设置在轴向回缩组件下方的排土构件。 该方法还包括旋转排土部件以形成井筒; 将支撑构件移动到第二轴向位置; 并减小轴向回缩组件的长度。

    SUBSEA DRILLING WITH CASING
    5.
    发明申请
    SUBSEA DRILLING WITH CASING 审中-公开
    SUBSEA钻孔与CASING

    公开(公告)号:WO2010057221A2

    公开(公告)日:2010-05-20

    申请号:PCT/US2009/064875

    申请日:2009-11-17

    Abstract: A method of forming a wellbore includes providing a drilling assembly comprising one or more lengths of casing and an axially retracting assembly having a first tubular; a second tubular at least partially disposed in the first tubular and axially fixed thereto; and a support member disposed in the second tubular and movable from a first axial position to a second axial position relative to the second tubular, wherein, in the first axial position, the support member maintains the second tubular axially fixed to the first tubular, and in the second axial position, allows the second tubular to move relative to the first tubular; and an earth removal member disposed below the axially retracting assembly. The method also includes rotating the earth removal member to form the wellbore; moving the support member to the second axial position; and reducing a length of the axially retracting assembly.

    Abstract translation: 形成井眼的方法包括提供包括一个或多个长度的壳体和具有第一管的轴向回缩组件的钻孔组件; 至少部分地设置在所述第一管状体中并轴向固定到其上的第二管状物; 以及支撑构件,其设置在所述第二管状体中并且可相对于所述第二管状物从第一轴向位置移动到第二轴向位置,其中,在所述第一轴向位置中,所述支撑构件将所述第二管状体轴向固定到所述第一管状物,以及 在第二轴向位置允许第二管相对于第一管移动; 以及设置在所述轴向收缩组件下方的除土构件。 该方法还包括旋转除尘构件以形成井眼; 将所述支撑构件移动到所述第二轴向位置; 并减小轴向回缩组件的长度。

    TELEMETRY OPERATED CIRCULATION SUB
    6.
    发明申请
    TELEMETRY OPERATED CIRCULATION SUB 审中-公开
    电报操作电路

    公开(公告)号:WO2012100259A2

    公开(公告)日:2012-07-26

    申请号:PCT/US2012022253

    申请日:2012-01-23

    Abstract: A method of drilling a wellbore includes drilling the wellbore by injecting drilling fluid through a drill string extending into the wellbore from surface and rotating a drill bit of the drill string. The drill string further includes a circulation sub having a port closed during drilling. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The drilling fluid and cuttings (returns) flow to the surface via an annulus formed between an outer surface of the tubular string and an inner surface of the wellbore. The method further includes after drilling at least a portion of the wellbore: halting drilling; sending a wireless instruction signal from the surface to a downhole portion of the drill string by articulating the drill string, acoustic signal, or mud pulse, thereby opening the port; and injecting drilling fluid through the drill string and into the annulus via the open port.

    Abstract translation: 钻井井的方法包括通过从钻井表面延伸入井眼的钻柱喷射钻井液并旋转钻柱的钻头来钻井井。 钻柱还包括在钻孔期间具有关闭的端口的循环子系统。 钻井液离开钻头,并从钻头中携带钻屑。 钻井液和钻屑(返回)通过形成在管柱的外表面和井眼的内表面之间的环形空间流到表面。 该方法还包括在钻井井的至少一部分之后:停止钻孔; 通过铰接钻柱,声信号或泥浆脉冲,从钻井平台的表面向井下部分发送无线指令信号,从而打开端口; 并且通过钻柱注入钻井液并经由开放端口进入环形空间。

    EXTENDABLE CUTTING TOOLS FOR USE IN A WELLBORE
    7.
    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。

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