Mono-diameter wellbore casing
    64.
    发明授权

    公开(公告)号:US07234531B2

    公开(公告)日:2007-06-26

    申请号:US10491709

    申请日:2002-09-19

    IPC分类号: E21B23/02

    摘要: A mono-diameter wellbore casing. A tubular liner and an expansion cone are positioned within a new section of a wellbore with the tubular liner in an overlapping relationship with a pre-existing casing. A hardenable fluidic material is injected into the new section of the wellbore below the level of the expansion cone and into the annular region between the tubular liner and the new section of the wellbore. The inner and outer regions of the tubular liner are then fluidicly isolated. A non hardenable fluidic material is then injected into a portion of an interior region of the tubular liner to pressurize the portion of the interior region of the tubular liner below the expansion cone. The tubular liner is then extruded off of the expansion cone. The overlapping portion of the pre-existing casing and the tubular liner are then radially expanded using an expansion cone.

    Liner hanger
    70.
    发明授权
    Liner hanger 有权
    衬衣衣架

    公开(公告)号:US06568471B1

    公开(公告)日:2003-05-27

    申请号:US09512895

    申请日:2000-02-24

    IPC分类号: E21B4300

    摘要: An apparatus and method for forming a wellbore casing. An annular piston is displaced in the axial direction by pressurizing an annular piston chamber. The axial displacement of the piston radially expands a tubular member into contact with a preexisting tubular member. The radially expanded liner hanger is then decoupled from the apparatus.

    摘要翻译: 一种用于形成井眼套管的装置和方法。 环形活塞通过对环形活塞室进行加压而沿轴向位移。 活塞的轴向位移使管状构件径向地膨胀成与预先存在的管状构件接触。 然后将径向膨胀的衬管悬挂器与设备脱开。