Wellhead isolation mandrel with centralizing device
    1.
    发明申请
    Wellhead isolation mandrel with centralizing device 审中-公开
    井口隔离心轴与集中装置

    公开(公告)号:US20080110639A1

    公开(公告)日:2008-05-15

    申请号:US11600614

    申请日:2006-11-15

    CPC classification number: E21B33/068

    Abstract: A wellhead isolation tool including a mandrel and a centralizing device. The centralizing device will align the tool so that the lower end of the mandrel sealingly engages the production casing. The mandrel has an open bore for allowing service tools to pass therethrough.

    Abstract translation: 一种井口隔离工具,包括心轴和集中装置。 集中装置将对准工具,使得心轴的下端密封地接合生产套管。 心轴具有允许维修工具通过的开孔。

    Centralizing apparatus
    2.
    发明申请
    Centralizing apparatus 审中-公开
    集中装置

    公开(公告)号:US20080196883A1

    公开(公告)日:2008-08-21

    申请号:US12074172

    申请日:2008-02-29

    CPC classification number: E21B33/068

    Abstract: A wellhead isolation tool including a cup mandrel and a centralizing device. The centralizing device will align the tool so that the cup seal at the lower end of the cup mandrel sealingly engages the production casing. The cup mandrel has an open bore for allowing service tools to pass therethrough unimpeded.

    Abstract translation: 一种井口隔离工具,包括杯形心轴和集中装置。 集中装置将对准工具,使杯杯心轴下端的杯形密封件密封地接合生产套管。 杯形心轴具有开口孔,用于允许维修工具不受阻碍地穿过。

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