-
公开(公告)号：US08721752B2
公开(公告)日：2014-05-13
申请号：US12672927
申请日：2008-08-14
CPC分类号： E21B10/567 , B22F2005/001 , C22C26/00 , Y10T428/24488 , Y10T428/2457 , Y10T428/24612 , Y10T428/2495
摘要： A PCD cutting element for use in earth boring drill bits where die interstices remote from the working surface are filled with a catalyzing material and the interstices adjacent to the working surface are substantially free of the catalyzing material is described. An intermediate region between the substantially free portion and filled portion has a plurality of generally conically sectioned catalyst-free projections which taper down, extending to a second depth from the planar working surface, preferably about 0.5 times or more of the first depth.
摘要翻译： 描述了用于钻孔钻头的PCD切割元件，其中远离工作表面的模具间隙填充有催化材料，并且与工作表面相邻的间隙基本上不含催化材料。 基本上自由部分和填充部分之间的中间区域具有多个大致圆锥形截面的无催化剂的突起，其向下渐缩，从平面工作表面延伸到第二深度，优选地为第一深度的约0.5倍或更多。
-
公开(公告)号：US20110212303A1
公开(公告)日：2011-09-01
申请号：US12672927
申请日：2008-08-14
CPC分类号： E21B10/567 , B22F2005/001 , C22C26/00 , Y10T428/24488 , Y10T428/2457 , Y10T428/24612 , Y10T428/2495
摘要： A PCD cutting element for use in earth boring drill bits where the interstices remote from the working surface are filled with a catalyzing material and the interstices adjacent to the working surface are substantially free of the catalyzing material is described. An intermediate region between the substantially free portion and filled portion has a plurality of generally conically sectioned catalyst-free projections which taper down, extending to a second depth from the planar working surface, preferably about 0.5 times or more of the first depth.
摘要翻译： 描述了用于钻孔钻头的PCD切割元件，其中远离工作表面的间隙填充有催化材料，并且与工作表面相邻的间隙基本上不含催化材料。 基本上自由部分和填充部分之间的中间区域具有多个大致圆锥形截面的无催化剂的突起，其向下渐缩，从平面工作表面延伸到第二深度，优选地为第一深度的约0.5倍或更多。
-
公开(公告)号：US07457734B2
公开(公告)日：2008-11-25
申请号：US11548706
申请日：2006-10-12
申请人： Simon Johnson , Brian Peter Jarvis
发明人： Simon Johnson , Brian Peter Jarvis
IPC分类号： G06G7/48
CPC分类号： E21B10/43 , G06F17/50 , G06F2217/16
摘要： Disclosed is a method of comparing the relative lateral stability among drill bits (that is, the tendency for a bit to whirl). This allows improved bit selection in applications where whirl is apparent. Because there will likely be many different acceptable bit designs produced by the above method, the comparison of the regenerative forces among these bits allows a customer to make a more informed choice between stability and other performance features among a range of bit designs.
摘要翻译： 公开了一种比较钻头之间的相对横向稳定性的方法（即，一点点旋转的倾向）。 这允许在显而易见的应用中改进位选择。 因为通过上述方法可能产生许多不同的可接受的位设计，这些位之间的再生力的比较允许客户在一系列位设计之间的稳定性和其他性能特征之间做出更明智的选择。
-
公开(公告)号：US07308955B2
公开(公告)日：2007-12-18
申请号：US11276978
申请日：2006-03-20
IPC分类号： E21B17/10
CPC分类号： E21B17/1092 , E21B17/1078
摘要： A stabilizer comprises a body having first and second ends, each of which is formed with a respective connector means, the body having an outer wall upon which is formed a plurality of the upstanding blades radially outer surfaces of which define gauge pads, flow channels being defined between adjacent ones of the blades, and at least one bridging region interconnecting two adjacent ones of the blades to form an enclosed passage communicating with an associated one of the flow channels, the bridging region having a surface defining part of an outer gauge surface of the stabilizer, the at least one bridging region being located intermediate and spaced from the first and second ends.
摘要翻译： 稳定器包括具有第一和第二端部的主体，每个主体形成有相应的连接器装置，主体具有外壁，多个直立的叶片形成有多个直立的叶片，径向外表面限定了规格垫，流动通道为 限定在相邻的叶片之间，以及至少一个桥接区域，其互连两个相邻的叶片，以形成与相关的一个流动通道连通的封闭通道，桥接区域具有限定部分外表面的外表面的表面 所述稳定器，所述至少一个桥接区域位于所述第一端和所述第二端的中间和间隔开。
-
5.发明授权公开(公告)号：US07568534B2
公开(公告)日：2009-08-04
申请号：US12037312
申请日：2008-02-26
IPC分类号： E21B7/00
CPC分类号： E21B10/567
摘要： A polycrystalline diamond cutting element for earth boring drill bits presents regions of different abrasion resistance to the earthen formation when in operation. The cutting element has an end working surface and a region which is substantially free of catalyzing material, forming a layer. In operation, this layer wears at a different rate than the underlying material causing a pair of protruding lips to form. The end working surface may be substantially planar or frusto-conical in form.
摘要翻译： 用于镗孔钻头的多晶金刚石切割元件在操作时呈现出与土层形成不同的耐磨性的区域。 切割元件具有端部工作表面和基本上不含催化材料的区域，形成层。 在操作中，该层以与底层材料不同的速率磨损，导致形成一对突出的唇缘。 端部工作表面可以是基本上平面的或截头圆锥形的。
-
-
-
-
搜索结果
5 条记录 (耗时 0.009 秒)
