Expandable reamers for earth-boring applications and methods of using the same
    1.
    发明授权
    Expandable reamers for earth-boring applications and methods of using the same 有权
    用于钻孔应用的可扩展铰刀和使用它的方法

    公开(公告)号:US07997354B2

    公开(公告)日:2011-08-16

    申请号:US11949627

    申请日:2007-12-03

    IPC分类号: E21B7/28 E21B10/32

    CPC分类号: E21B10/322

    摘要: Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a retracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) to a longitudinal axis of the outer body. In some embodiments, the tools may include a moveable inner sleeve member configured to selectively allow hydraulic fluid pressure within the fluid passageway to act directly on the at least one blade. Methods for enlarging a borehole using such expandable reamer tools and methods for removing such expandable reamer tools from a borehole are also disclosed.

    摘要翻译: 可扩展铰刀工具包括外主体,延伸穿过外主体的流体通道,以及至少一个叶片,其构造成在缩回位置和展开位置之间相对于外主体在朝向锐角小于九十度的方向上滑动 (90°)相对于外体的纵向轴线。 在一些实施例中,工具可以包括可移动内套筒构件,其构造成选择性地允许流体通道内的液压流体压力直接作用在至少一个叶片上。 还公开了使用这种可扩展铰刀工具扩大钻孔的方法和从钻孔中移除这种可扩展铰刀工具的方法。

    EXPANDABLE EARTH-BORING WELLBORE REAMERS AND RELATED METHODS
    4.
    发明申请
    EXPANDABLE EARTH-BORING WELLBORE REAMERS AND RELATED METHODS 有权
    可扩展的接地孔反应器及相关方法

    公开(公告)号:US20110266060A1

    公开(公告)日:2011-11-03

    申请号:US13182083

    申请日:2011-07-13

    IPC分类号: E21B10/32 E21B7/00

    CPC分类号: E21B10/322

    摘要: Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a refracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) to a longitudinal axis of the outer body. In some embodiments, the tools may include a moveable inner sleeve member configured to selectively allow hydraulic fluid pressure within the fluid passageway to act directly on the at least one blade. Methods for enlarging a borehole using such expandable reamer tools and methods for removing such expandable reamer tools from a borehole are also disclosed.

    摘要翻译: 可扩展铰刀工具包括外体,延伸穿过外体的流体通道,以及至少一个叶片,构造成在反射位置和展开位置之间相对于外部主体在朝向锐角小于九十度的方向上滑动 (90°)相对于外体的纵向轴线。 在一些实施例中,工具可以包括可移动内套筒构件,其构造成选择性地允许流体通道内的液压流体压力直接作用在至少一个叶片上。 还公开了使用这种可扩展铰刀工具扩大钻孔的方法和从钻孔中移除这种可扩展铰刀工具的方法。

    EXPANDABLE REAMERS FOR EARTH-BORING APPLICATIONS AND METHODS OF USING THE SAME
    5.
    发明申请
    EXPANDABLE REAMERS FOR EARTH-BORING APPLICATIONS AND METHODS OF USING THE SAME 有权
    用于接地应用的可膨胀的反应器及其使用方法

    公开(公告)号:US20080128174A1

    公开(公告)日:2008-06-05

    申请号:US11949627

    申请日:2007-12-03

    IPC分类号: E21B7/28

    CPC分类号: E21B10/322

    摘要: Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a retracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) to a longitudinal axis of the outer body. In some embodiments, the tools may include a moveable inner sleeve member configured to selectively allow hydraulic fluid pressure within the fluid passageway to act directly on the at least one blade. Methods for enlarging a borehole using such expandable reamer tools and methods for removing such expandable reamer tools from a borehole are also disclosed.

    摘要翻译: 可扩展铰刀工具包括外主体,延伸穿过外主体的流体通道,以及至少一个叶片,其构造成在缩回位置和展开位置之间相对于外主体在朝向锐角小于九十度的方向上滑动 (90°)相对于外体的纵向轴线。 在一些实施例中,工具可以包括可移动内套筒构件,其构造成选择性地允许流体通道内的液压流体压力直接作用在至少一个叶片上。 还公开了使用这种可扩展铰刀工具扩大钻孔的方法和从钻孔中移除这种可扩展铰刀工具的方法。