Method of creating a casing in a borehole
    53.
    发明授权
    Method of creating a casing in a borehole 有权
    在井眼中形成套管的方法

    公开(公告)号:US06497289B1

    公开(公告)日:2002-12-24

    申请号:US09454139

    申请日:1999-12-03

    IPC分类号: E21B1916

    摘要: A wellbore casing formed by extruding a tubular liner off of a mandrel. The tubular liner and mandrel are positioned within a new section of a wellbore with the tubular liner in an overlapping relationship with an existing casing. A hardenable fluidic material is injected into the new section of the wellbore below the level of the mandrel 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 mandrel. The tubular liner is then extruded off of the mandrel.

    摘要翻译: 通过将管状衬套从心轴挤出而形成的井眼套管。 管状衬套和心轴位于井筒的新部分内,管状衬套与现有套管重叠关系。 将可硬化的流体材料注入在心轴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套的内部区域的一部分中,以将心管下方的管状衬垫的内部区域的部分加压。 然后将管状衬垫从心轴挤出。