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公开(公告)号：US07900717B2
公开(公告)日：2011-03-08
申请号：US11949259
申请日：2007-12-03
IPC分类号： E21B7/28
CPC分类号： E21B10/322 , E21B23/00 , E21B34/14 , E21B47/08
摘要： An expandable reamer apparatus for drilling a subterranean formation includes a tubular body, one or more blades, each blade positionally coupled to a sloped track of the tubular body, a push sleeve and a drilling fluid flow path extending through an inner bore of the tubular body for conducting drilling fluid therethrough. Each of the one or more blades includes at least one cutting element configured to remove material from a subterranean formation during reaming. The push sleeve is disposed in the inner bore of the tubular body and coupled to each of the one or more blades so as effect axial movement thereof along the track to an extended position responsive to exposure to a force or pressure of drilling fluid in the flow path of the inner bore.
摘要翻译： 一种用于钻探地下地层的可扩展铰刀装置包括管状主体，一个或多个叶片，每个叶片位置地联接到管状体的倾斜轨道，推动套筒和钻孔流体流动路径延伸穿过管状体的内孔 用于将钻井液导入其中。 所述一个或多个叶片中的每一个包括至少一个切割元件，其被配置为在扩孔期间从地下地层中去除材料。 推动套筒设置在管状体的内孔中并且联接到一个或多个叶片中的每一个，以便响应于暴露在流动中的钻井液体的力或压力而沿着轨道将其沿轴向运动到延伸位置 内孔的路径。
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公开(公告)号：US20080128175A1
公开(公告)日：2008-06-05
申请号：US11949259
申请日：2007-12-03
IPC分类号： E21B10/32
CPC分类号： E21B10/322 , E21B23/00 , E21B34/14 , E21B47/08
摘要： An expandable reamer apparatus for drilling a subterranean formation includes a tubular body, one or more blades, each blade positionally coupled to a sloped track of the tubular body, a push sleeve and a drilling fluid flow path extending through an inner bore of the tubular body for conducting drilling fluid therethrough. Each of the one or more blades includes at least one cutting element configured to remove material from a subterranean formation during reaming. The push sleeve is disposed in the inner bore of the tubular body and coupled to each of the one or more blades so as effect axial movement thereof along the track to an extended position responsive to exposure to a force or pressure of drilling fluid in the flow path of the inner bore. Other embodiments of the expandable reamer apparatus are provided.
摘要翻译： 一种用于钻探地下地层的可扩展铰刀装置包括管状主体，一个或多个叶片，每个叶片位置地联接到管状体的倾斜轨道，推动套筒和钻孔流体流动路径延伸穿过管状体的内孔 用于将钻井液导入其中。 所述一个或多个叶片中的每一个包括至少一个切割元件，其被配置为在扩孔期间从地下地层中去除材料。 推动套筒设置在管状体的内孔中并且联接到一个或多个叶片中的每一个，以便响应于暴露在流动中的钻井液体的力或压力而沿着轨道将其沿轴向运动到延伸位置 内孔的路径。 提供了可扩展铰刀装置的其它实施例。
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公开(公告)号：US08453763B2
公开(公告)日：2013-06-04
申请号：US13182083
申请日：2011-07-13
申请人： Steven R. Radford , Scott Shiquiang Shu , Les T. Shale , Mark E. Morris , Mark R. Kizziar , Anton F. Zahradnik
发明人： Steven R. Radford , Scott Shiquiang Shu , Les T. Shale , Mark E. Morris , Mark R. Kizziar , Anton F. Zahradnik
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 some embodiments, the tools may include a formation-engaging surface comprising a gage area. In other embodiments, the tools may include a radially recessed area extending from a back edge of the formation-engaging surface. 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部主体，延伸穿过外部主体的流体通道以及至少一个被构造成在缩回位置和扩张位置之间相对于外部主体滑动的叶片。 在一些实施例中，工具可以包括包括表面区域的地层接合表面。 在其他实施例中，工具可以包括从地层接合表面的后边缘延伸的径向凹陷区域。 还公开了从钻孔中移除这种可扩展铰刀工具的方法。
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