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    • 7. 发明授权
    • Methods and apparatus for forming a lateral wellbore
    • 用于形成侧井眼的方法和装置
    • US06708762B2
    • 2004-03-23
    • US10351854
    • 2003-01-27
    • David M. HaugenFrederick T. TiltonNeil A. A. SimpsonKevin L. GrayRobert BadrakDavid J. Brunnert
    • David M. HaugenFrederick T. TiltonNeil A. A. SimpsonKevin L. GrayRobert BadrakDavid J. Brunnert
    • E21B43114
    • E21B17/07E21B7/061E21B27/00E21B29/02E21B29/06
    • 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.
    • 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。
    • 8. 发明授权
    • Methods and apparatus for forming a lateral wellbore
    • 用于形成侧井眼的方法和装置
    • US06536525B1
    • 2003-03-25
    • US09658858
    • 2000-09-11
    • David M. HaugenFrederick T. TiltonNeil A. A. SimpsonKevin L. GrayRobert BadrakDavid J. Brunnert
    • David M. HaugenFrederick T. TiltonNeil A. A. SimpsonKevin L. GrayRobert BadrakDavid J. Brunnert
    • E21B43114
    • E21B17/07E21B7/061E21B27/00E21B29/02E21B29/06
    • 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.
    • 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。