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公开(公告)号：US08327957B2
公开(公告)日：2012-12-11
申请号：US12803321
申请日：2010-06-24
CPC分类号： E21B29/002 , E21B10/43
摘要： Downhole cutting tools such as blade mills comprise a body having a first end for connection with a rotating component of a drill string and a cutting end for rotation in unison with the body. The cutting end comprises at least two blades, each of the at least two blades comprising a front sidewall surface, a back sidewall surface, an inner end, an outer end, and at least one beveled portion disposed along the front sidewall surface toward the inner end of each of the at least two blades. At least one of the beveled portions comprise at least one cutting element disposed thereon that is disposed across a center point of the face of the cutting end to provide for cutting away an object disposed in a wellbore to occur across a center point of the cutting end.
摘要翻译： 井下切割工具例如刀片磨机包括具有用于与钻柱的旋转部件连接的第一端和与主体一体旋转的切割端的主体。 所述切割端包括至少两个叶片，所述至少两个叶片中的每一个包括前侧壁表面，后侧壁表面，内端，外端以及沿着所述前侧壁表面朝向所述内侧端面设置的至少一个倾斜部分 所述至少两个叶片中的每一个的末端。 至少一个倾斜部分包括设置在其上的至少一个切割元件，该至少一个切割元件横跨切割端的表面的中心点布置，以提供切除设置在井眼中的物体，以跨越切割端的中心点发生 。
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公开(公告)号：US07878253B2
公开(公告)日：2011-02-01
申请号：US12396986
申请日：2009-03-03
CPC分类号： E21B29/06 , E21B23/04 , E21B41/00 , Y10T403/11 , Y10T403/22
摘要： An affixation and release arrangement includes a first component having a fluid pressure chamber. A piston is mounted in the first component and exposed to the fluid pressure chamber. A second component is affixed to the first component through the piston, the piston being responsive to fluid pressure increase within the chamber to unaffix the second component from the first component.
摘要翻译： 附加和释放装置包括具有流体压力室的第一部件。 活塞安装在第一部件中并暴露于流体压力室。 第二部件通过活塞固定到第一部件上，活塞响应于腔室内的流体压力增加，以使第二部件与第一部件不混合。
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公开(公告)号：US20110315447A1
公开(公告)日：2011-12-29
申请号：US12803321
申请日：2010-06-24
CPC分类号： E21B29/002 , E21B10/43
摘要： Downhole cutting tools such as blade mills comprise a body having a first end for connection with a rotating component of a drill string and a cutting end for rotation in unison with the body. The cutting end comprises at least two blades, each of the at least two blades comprising a front sidewall surface, a back sidewall surface, an inner end, an outer end, and at least one beveled portion disposed along the front sidewall surface toward the inner end of each of the at least two blades. At least one of the beveled portions comprise at least one cutting element disposed thereon that is disposed across a center point of the face of the cutting end to provide for cutting away an object disposed in a wellbore to occur across a center point of the cutting end.
摘要翻译： 井下切割工具例如刀片磨机包括具有用于与钻柱的旋转部件连接的第一端和与主体一体旋转的切割端的主体。 所述切割端包括至少两个叶片，所述至少两个叶片中的每个叶片包括前侧壁表面，后侧壁表面，内端，外端以及沿着所述前侧壁表面朝向内侧延伸的至少一个倾斜部分 所述至少两个叶片中的每一个的末端。 至少一个倾斜部分包括设置在其上的至少一个切割元件，该至少一个切割元件横跨切割端的表面的中心点布置，以提供切除设置在井眼中的物体，以跨越切割端的中心点发生 。
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公开(公告)号：US08434572B2
公开(公告)日：2013-05-07
申请号：US12803320
申请日：2010-06-24
IPC分类号： E21B10/36
CPC分类号： E21B10/55 , E21B10/56 , Y10T407/23
摘要： Cutting elements for downhole cutting tools comprise a top surface having a cutting surface portion and a cutting profile asymmetrically disposed across the top surface. The cutting elements comprise first and second longitudinal side surfaces and first and second lateral side surfaces, each having a respective cross-section. The cross-section of one of the longitudinal side surfaces can have one beveled portion and the cross-sections of the other longitudinal side surface and the first and second lateral side surfaces can have two beveled portions. A cutting end of a downhole cutting tool comprises two cutting elements disposed facing each another with a portion of the cutting surface portion of a first cutting element being disposed opposite the cutting profile of the second cutting element and the cutting surface portion of the second cutting element being disposed opposite the cutting profile of the first cutting element.
摘要翻译： 用于井下切割工具的切割元件包括顶表面，其具有切割表面部分和跨过顶表面非对称设置的切割轮廓。 切割元件包括第一和第二纵向侧表面以及分别具有相应横截面的第一和第二横向侧表面。 纵向侧表面之一的横截面可以具有一个倾斜部分，另一个纵向侧表面和第一和第二横向侧表面的横截面可以具有两个斜面部分。 井下切割工具的切割端包括彼此面对地设置的两个切割元件，第一切割元件的切割表面部分的一部分与第二切割元件的切割轮廓相对设置，并且第二切割元件的切割表面部分 与第一切割元件的切割轮廓相对设置。
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公开(公告)号：US20110315448A1
公开(公告)日：2011-12-29
申请号：US13070524
申请日：2011-03-24
CPC分类号： B24D99/005 , E21B10/006 , E21B10/54 , E21B29/002
摘要： Cutting elements for downhole cutting tools comprise a top surface having a cutting surface portion and a cutting profile disposed across the top surface. The cutting elements comprise first and second longitudinal side surfaces and first and second lateral side surfaces, each having a respective cross-section. The cutting profile can be disposed on the cutting surface either asymmetrically or symmetrically. Asymmetrical disposition permits two cutting elements to be arranged facing each other to cover a center point of a cutting tool. The cutting edge of asymmetrical or symmetrically disposed cutting profiles can have a shape that facilitates self-sharpening during cutting.
摘要翻译： 用于井下切割工具的切割元件包括具有切割表面部分和跨越顶表面设置的切割轮廓的顶表面。 切割元件包括第一和第二纵向侧表面以及分别具有相应横截面的第一和第二横向侧表面。 切割轮廓可以不对称地或对称地设置在切割表面上。 不对称配置允许两个切割元件相对布置以覆盖切割工具的中心点。 不对称或对称设置的切割轮廓的切割边缘可以具有在切割期间有助于自锐化的形状。
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公开(公告)号：US20110240367A1
公开(公告)日：2011-10-06
申请号：US12896266
申请日：2010-10-01
申请人： Christopher W. Guidry , Guruswami Navin , Lambertus C.F. Joppe , Andrew D. Ponder , Calvin Stowe
发明人： Christopher W. Guidry , Guruswami Navin , Lambertus C.F. Joppe , Andrew D. Ponder , Calvin Stowe
CPC分类号： E21B29/002
摘要： A milling tool which includes a nose cutting portion, a cutting section having a plurality of hardened cutters and a shaft portion. A wear pad is disposed on the cutting section and shaft portion. Upon the shaft portion, the wear pad extends radially outwardly to an engagement diameter that exceeds the maximum cutting diameter of the cutters.
摘要翻译： 一种铣刀，其包括鼻部切割部分，具有多个硬化刀具的切割部分和轴部分。 磨损垫设置在切割部分和轴部分上。 在轴部分上，磨损垫径向向外延伸到超过切割器的最大切割直径的接合直径。
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公开(公告)号：US20100108402A1
公开(公告)日：2010-05-06
申请号：US12262690
申请日：2008-10-31
CPC分类号： E21B10/006
摘要： A downhole cutting tool includes, a body, a first contoured cutting element in operable communication with the body, and at least one contingency contoured cutting element in operable communication with the first contoured cutting element and the body. A contour of the at least one contingency contoured cutting element substantially matches a contour of the first contoured cutting element, and the at least one contingency contoured cutting element is maintainable in reserve and positioned to substitute for the first contoured cutting element if the first contoured cutting element becomes detached.
摘要翻译： 井下切割工具包括主体，与主体可操作地连通的第一轮廓切割元件以及与第一轮廓切割元件和主体可操作地连通的至少一个意外轮廓切割元件。 所述至少一个偶然轮廓切割元件的轮廓基本上匹配所述第一轮廓切割元件的轮廓，并且所述至少一个应急轮廓切割元件可保留地保持并定位成代替所述第一轮廓切割元件，如果所述第一轮廓切割 元素分离。
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