Methods and apparatus for forming a lateral wellbore
    1.
    发明授权
    Methods and apparatus for forming a lateral wellbore 有权
    用于形成侧井眼的方法和装置

    公开(公告)号:US06708762B2

    公开(公告)日:2004-03-23

    申请号:US10351854

    申请日:2003-01-27

    IPC分类号: E21B43114

    摘要: The present invention discloses and claims methods and apparatus for forming an opening or a window in a downhole tubular for the subsequent formation of a lateral wellbore. In one aspect of the invention, a thermite containing apparatus is run into the wellbore on a wire line and a widow is subsequently formed in casing wall. In another aspect of the invention, the apparatus includes a run-in string or drill stem with a drill bit attached to a lower end thereof. A diverter, like a whipstock is attached temporarily to the drill bit with a mechanically shearable connection. At a lower end of the whipstock, a container is formed and connected thereto. The container is designed to house a predetermined amount of exothermic material at one side thereof adjacent the portion of casing where the window or opening will be formed. A telescopic joint extends between the bottom of the container and an anchor therebelow and the telescopic joint is in an extended position when the apparatus is run into a wellbore. In use, the exothermic material, like thermite is ignited and the window is formed in the casing. The telescopic joint is then caused to move to a second position, locating the whipstock adjacent the newly formed casing window.

    摘要翻译: 本发明公开了一种用于在井下管中形成开口或窗口的方法和装置,用于随后形成侧井筒。 在本发明的一个方面,含铝的装置在导线上进入井筒,随后在套管壁中形成寡妇。 在本发明的另一方面,该装置包括具有附接到其下端的钻头的溜槽或钻杆。 一个转向器,像造斜器一样,可以用机械剪切的连接临时固定在钻头上。 在造斜器的下端,形成容器并与其连接。 该容器被设计成容纳预定量的放热材料,该预定量的放热材料在其邻近形成窗口或开口的壳体部分附近。 伸缩接头在容器的底部和其下方的锚固件之间延伸,并且当设备进入井眼时伸缩接头处于伸出位置。 在使用中,放热材料(如铝)被点燃并且窗口形成在壳体中。 然后伸缩接头移动到第二位置,将造斜器定位成邻近新形成的套管窗。

    Methods and apparatus for forming a lateral wellbore
    2.
    发明授权
    Methods and apparatus for forming a lateral wellbore 有权
    用于形成侧井眼的方法和装置

    公开(公告)号:US06536525B1

    公开(公告)日:2003-03-25

    申请号:US09658858

    申请日:2000-09-11

    IPC分类号: E21B43114

    摘要: The present invention discloses and claims methods and apparatus for forming an opening or a window in a downhole tubular for the subsequent formation of a lateral wellbore. In one aspect of the invention, a thermite containing apparatus is run into the wellbore on a wire line and a widow is subsequently formed in casing wall. In another aspect of the invention, the apparatus includes a run-in string or drill stem with a drill bit attached to a lower end thereof. A diverter, like a whipstock is attached temporarily to the drill bit with a mechanically shearable connection. At a lower end of the whipstock, a container is formed and connected thereto. The container is designed to house a predetermined amount of exothermic material at one side thereof adjacent the portion of casing where the window or opening will be formed. A telescopic joint extends between the bottom of the container and an anchor therebelow and the telescopic joint is in an extended position when the apparatus is run into a wellbore. In use, the exothermic material, like thermite is ignited and the window is formed in the casing. The telescopic joint is then caused to move to a second position, locating the whipstock adjacent the newly formed casing window.

    摘要翻译: 本发明公开了一种用于在井下管中形成开口或窗口的方法和装置,用于随后形成侧井筒。 在本发明的一个方面,含铝的装置在导线上进入井筒,随后在套管壁中形成寡妇。 在本发明的另一方面,该装置包括具有附接到其下端的钻头的溜槽或钻杆。 一个转向器,像造斜器一样,可以用机械剪切的连接临时固定在钻头上。 在造斜器的下端,形成容器并与其连接。 该容器被设计成容纳预定量的放热材料,该预定量的放热材料在其邻近形成窗口或开口的套管部分的一侧。 伸缩接头在容器的底部和其下方的锚固件之间延伸,并且当设备进入井眼时伸缩接头处于伸出位置。 在使用中,放热材料(如铝)被点燃并且窗口形成在壳体中。 然后伸缩接头移动到第二位置,将造斜器定位成邻近新形成的套管窗。

    Extendable cutting tools for use in a wellbore
    9.
    发明授权
    Extendable cutting tools for use in a wellbore 有权
    用于井眼的可扩展切割工具

    公开(公告)号:US08540035B2

    公开(公告)日:2013-09-24

    申请号:US12616107

    申请日:2009-11-10

    IPC分类号: E21B7/28

    摘要: 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.

    摘要翻译: 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,在所述开口中设置在缩回位置,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。

    Wired casing
    10.
    发明授权
    Wired casing 有权
    有线外壳

    公开(公告)号:US07303022B2

    公开(公告)日:2007-12-04

    申请号:US10832804

    申请日:2004-04-27

    IPC分类号: E21B19/08

    摘要: The present invention involves a method and apparatus for monitoring conditions downhole and/or manipulating downhole tools by placing electrical wire on a casing string while drilling with casing. Wire is inserted into a groove within the casing string while drilling with the casing string into a formation. The wire connects downhole equipment to surface equipment. Multiple casing strings may be drilled into the formation while wire is simultaneously inserted into a groove therein.

    摘要翻译: 本发明涉及一种用于通过在用套管钻孔时将电线放置在套管柱上来监测井下状况和/或操纵井下工具的方法和装置。 当将套管柱钻入地层中时,将线插入套管柱内的槽中。 电线将井下设备连接到地面设备。 在将金属丝同时插入其中的凹槽中时,可以将多个套管柱钻入地层中。