Mono-diameter wellbore casing
    87.
    发明授权
    Mono-diameter wellbore casing 失效
    直径井筒套管

    公开(公告)号:US07350564B2

    公开(公告)日:2008-04-01

    申请号:US11134095

    申请日:2005-05-20

    IPC分类号: E21B43/10

    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.

    摘要翻译: 单孔井筒。 管状衬垫和膨胀锥体位于井筒的新部分内,管状衬套与预先存在的套管重叠关系。 可膨胀的流体材料被注入到在膨胀锥的水平面下方的井眼的新部分中并进入管状衬套和井眼的新部分之间的环形区域中。 然后将管状衬垫的内部和外部区域流体隔离。 然后将不可硬化的流体材料注入到管状衬垫的内部区域的一部分中,以对膨胀锥体下方的管状衬垫的内部区域的部分加压。 然后将管状衬垫从膨胀锥体挤出。 然后使用膨胀锥体使预先存在的套管和管状衬套的重叠部分径向膨胀。