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    MONO-DIAMETER WELLBORE CASING
    6.
    发明申请
    MONO-DIAMETER WELLBORE CASING 审中-公开
    单孔井眼套管

    公开(公告)号：WO02068792B1

    公开(公告)日：2002-10-31

    申请号：PCT/US0200677

    申请日：2002-01-11

    Applicant: ENVENTURE GLOBAL TECHNOLOGY ,  COOK ROBERT LANCE ,  RING LEV

    Inventor： COOK ROBERT LANCE ,  RING LEV

    IPC: E21B43/10 ,  E21B19/16 ,  E21B23/00

    CPC classification number: E21B43/105

    Abstract: A mono-diameter casing formed when a tubular liner (210) and an expansion cone (205) are positioned within a new section fo a wellbore (100) and the tubular liner (210) is overlapped with a pre-existing casing (115). A hardening fluid is injected into the section of the wellbore (100) below the level of the expansion cone (205) and into the annular region between the tubular liner (210) and the wellbore (100). The inner and outer regions of the tubular liner (210) are isolated. Then a non-hardening fluid is injected into the interior region of the tubular liner (210) to pressurize it below the expansion cone (205). The overlapping portion of the pre-existing casing (115) and the tubular liner (210) are then expanded using an expansion cone (205).

    Abstract translation: 当管状衬套（210）和膨胀锥（205）位于井眼（100）的新部分内并且管状衬套（210）与预先存在的壳体（115）重叠时形成的单直径壳体， 。 硬化流体被注入到位于膨胀锥体（205）的高度以下并进入管状衬套（210）和井筒（100）之间的环形区域内的井筒（100）的区段中。 管状衬套（210）的内部和外部区域是隔离的。 然后，将非硬化流体注入管状衬套（210）的内部区域，以在膨胀锥体（205）下方对其加压。 然后使用膨胀锥（205）使预先存在的壳体（115）和管状衬套（210）的重叠部分膨胀。

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