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公开(公告)号：US20110291461A1
公开(公告)日：2011-12-01
申请号：US13208103
申请日：2011-08-11
申请人： David R. Hall , Marcus Skeem , Francis Leany
发明人： David R. Hall , Marcus Skeem , Francis Leany
IPC分类号： E21C35/18
CPC分类号： E21B10/5673 , E21B10/5676 , E21B10/5735 , E21C35/183 , E21C2035/1816
摘要： In one aspect of the invention, a degradation element includes a substrate bonded to a sintered polycrystalline ceramic. The sintered polycrystalline ceramic has a tapering shape and a rounded apex. The rounded apex has a curvature with a 0.050 to 0.150 inch radius when viewed from a direction normal to a central axis of the degradation element that intersects the curvature. The rounded apex includes the characteristic of when the rounded apex is loaded against a rock formation, the rounded apex fails the rock formation forming a crushed barrier ahead of the rounded apex that shields the rounded apex from a virgin portion of the rock formation while still allowing the rounded apex to penetrate below a surface of the rock formation.
摘要翻译： 在本发明的一个方面，降解元件包括与烧结多晶陶瓷结合的基材。 烧结多晶陶瓷具有锥形形状和圆顶形。 当从垂直于与曲率相交的降解元件的中心轴的方向观察时，圆形顶点具有0.050至0.150英寸半径的曲率。 圆形顶点包括当圆形顶点被装载在岩层上时的特征，圆形顶点不能形成岩层，在圆顶形前面形成一个破碎的屏障，从而将圆形顶点从岩层的原始部分屏蔽，同时仍允许 圆形顶点渗透到岩层表面以下。
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公开(公告)号：US20050260939A1
公开(公告)日：2005-11-24
申请号：US10847939
申请日：2004-05-18
摘要： A dressing blade for finishing and reconditioning new and used abrasive grinding and cutting tools has a slab-shaped shank with an extension protruding longitudinally from the shank. Superabrasive grains are disposed on the surface of the extension and held in place by a brazed metal composition. This composition is formed by brazing a powdered mixture of brazing metal components and active metal components. Specific extension configurations are provided which allow aligning the superabrasive grains in single layer arrangement for precise dressing and simple fabrication of the tool. The novel dressing tool exhibits excellent wear characteristics.
摘要翻译： 用于整理和修复新的和使用过的磨料研磨和切割工具的修整刀片具有板状柄，其具有从柄部纵向突出的延伸部。 超级磨粒设置在延伸部的表面上，并通过钎焊金属组合物保持在适当位置。 该组合物通过钎焊钎焊金属组分和活性金属组分的粉末混合物形成。 提供了特定的延伸结构，其允许在单层布置中对准超磨料颗粒以进行精确的修整和工具的简单制造。 该新型修整工具具有优异的磨损特性。
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公开(公告)号：US09316061B2
公开(公告)日：2016-04-19
申请号：US13208103
申请日：2011-08-11
申请人： David R. Hall , Marcus Skeem , Francis Leany
发明人： David R. Hall , Marcus Skeem , Francis Leany
IPC分类号： E21C35/18 , E21B10/567 , E21B10/573 , E21C35/183
CPC分类号： E21B10/5673 , E21B10/5676 , E21B10/5735 , E21C35/183 , E21C2035/1816
摘要： In one aspect of the invention, a degradation element includes a substrate bonded to a sintered polycrystalline ceramic. The sintered polycrystalline ceramic has a tapering shape and a rounded apex. The rounded apex has a curvature with a 0.050 to 0.150 inch radius when viewed from a direction normal to a central axis of the degradation element that intersects the curvature. The rounded apex includes the characteristic of when the rounded apex is loaded against a rock formation, the rounded apex fails the rock formation forming a crushed barrier ahead of the rounded apex that shields the rounded apex from a virgin portion of the rock formation while still allowing the rounded apex to penetrate below a surface of the rock formation.
摘要翻译： 在本发明的一个方面，降解元件包括与烧结多晶陶瓷结合的基材。 烧结多晶陶瓷具有锥形形状和圆顶形。 当从垂直于与曲率相交的降解元件的中心轴的方向观察时，圆形顶点具有0.050至0.150英寸半径的曲率。 圆形顶点包括当圆形顶点被装载在岩层上时的特征，圆形顶点不能形成岩层，在圆顶形前面形成一个破碎的屏障，从而将圆形顶点从岩层的原始部分屏蔽，同时仍允许 圆形顶点渗透到岩层表面以下。
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公开(公告)号：USD674422S1
公开(公告)日：2013-01-15
申请号：US29376995
申请日：2010-10-15
申请人： David R. Hall , Francis Leany , Ronald B. Crockett , Casey Webb , Marcus Skeem
设计人： David R. Hall , Francis Leany , Ronald B. Crockett , Casey Webb , Marcus Skeem
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公开(公告)号：US20080076338A1
公开(公告)日：2008-03-27
申请号：US11950786
申请日：2007-12-05
IPC分类号： B24B21/18
摘要： A dressing blade for finishing and reconditioning new and used abrasive grinding and cutting tools has a slab-shaped shank with an extension protruding longitudinally from the shank. Superabrasive grains are disposed on the surface of the extension and held in place by a brazed metal composition. This composition is formed by brazing a powdered mixture of brazing metal components and active metal components. Specific extension configurations are provided which allow aligning the superabrasive grains in single layer arrangement for precise dressing and simple fabrication of the tool. The novel dressing tool exhibits excellent wear characteristics.
摘要翻译： 用于整理和修复新的和使用过的磨料研磨和切割工具的修整刀片具有板状柄，其具有从柄部纵向突出的延伸部。 超级磨粒设置在延伸部的表面上，并通过钎焊金属组合物保持在适当位置。 该组合物通过钎焊钎焊金属组分和活性金属组分的粉末混合物形成。 提供了特定的延伸结构，其允许在单层布置中对准超磨料颗粒以进行精确的修整和工具的简单制造。 该新型修整工具具有优异的磨损特性。
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公开(公告)号：US08714285B2
公开(公告)日：2014-05-06
申请号：US12619423
申请日：2009-11-16
申请人： David R. Hall , Ronald B. Crockett , Marcus Skeem , Francis Leany , Casey Webb
发明人： David R. Hall , Ronald B. Crockett , Marcus Skeem , Francis Leany , Casey Webb
IPC分类号： E21B10/43
CPC分类号： E21B10/42 , E21B10/55 , E21B10/5673 , E21B10/5735
摘要： A downhole fixed bladed bit comprises a working surface comprising a plurality of blades converging at a center of the working surface and diverging towards a gauge of the bit, at least one blade comprising a cutting element comprising a superhard material bonded to a cemented metal carbide substrate at a non-planer interface, the cutting element being positioned at a positive rake angle, and the superhard material comprising a substantially conical geometry with an apex comprising a curvature.
摘要翻译： 井下固定叶片包括工作表面，该工作表面包括多个叶片，所述多个叶片在工作表面的中心处会聚并向着钻头的量规发散;至少一个刀片，包括切割元件，该切割元件包括结合到胶合金属碳化物基底的超硬材料 在非平面界面处，所述切割元件被定位在正前角，并且所述超硬材料包括基本上圆锥形的几何形状，其顶点包括曲率。
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公开(公告)号：US08550190B2
公开(公告)日：2013-10-08
申请号：US12894371
申请日：2010-09-30
申请人： David R. Hall , Francis Leany , Casey Webb , Marcus Skeem
发明人： David R. Hall , Francis Leany , Casey Webb , Marcus Skeem
IPC分类号： E21B10/26
摘要： In one aspect of the present invention, a drill bit assembly for downhole drilling comprises an outer bit comprising a central axis and an outer cutting area and an inner bit disposed within the outer bit and comprising an inner cutting area. The outer bit comprises a first plurality of cutting elements and the inner bit comprises a second plurality of cutting elements wherein an average distance of each cutting element in the first plurality to the central axis forms a first moment arm and an average distance of each cutting element in the second plurality to the central axis forms a second moment arm. A ratio of the inner cutting area to the outer cutting area is substantially equal to a ratio of the outer moment arm to the inner moment arm.
摘要翻译： 在本发明的一个方面，一种用于井下钻孔的钻头组件包括外钻头，其包括中心轴线和外切割区域，以及设置在外钻头内的内钻头并且包括内切割区域。 所述外钻头包括第一多个切割元件，并且所述内钻头包括第二多个切割元件，其中所述第一多个切割元件到所述中心轴线的每个切割元件的平均距离形成第一力矩臂，并且每个切割元件的平均距离 在第二多个到中心轴线中形成第二力矩臂。 内切割区域与外切割区域的比率基本上等于外力矩臂与内力矩臂的比率。
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8.发明申请Tracking Shearing Cutters on a Fixed Bladed Drill Bit with Pointed Cutting Elements 有权在带有切割元件的固定刀片钻头上跟踪剪切刀公开(公告)号：US20110259650A1
公开(公告)日：2011-10-27
申请号：US12766555
申请日：2010-04-23
申请人： David R. Hall , Ronald B. Crockett , Marcus Skeem , Francis Leany , Casey Webb
发明人： David R. Hall , Ronald B. Crockett , Marcus Skeem , Francis Leany , Casey Webb
CPC分类号： E21B10/43 , E21B10/42 , E21B10/55 , E21B2010/425
摘要： In one aspect of the invention, a fixed bladed drill bit comprises a working surface comprising a plurality of blades converging at a center of the working surface and diverging towards a gauge of the bit. Each blade comprises a plurality of pointed cutting elements and another plurality of shearing cutters. The plurality of shearing cutters comprises a first shearing cutter. The first shearing cutter on each blade tracks the first shearing cutter on other blades along a common circular cutting path.
摘要翻译： 在本发明的一个方面，固定刀片钻头包括工作表面，该工作表面包括会聚在工作表面的中心并朝向钻头的量规发散的多个叶片。 每个叶片包括多个尖锐的切割元件和另外多个剪切刀。 多个剪切刀包括第一剪切刀。 每个刀片上的第一个剪切刀沿着共同的圆形切割路径跟踪其他刀片上的第一个剪切刀。
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9.发明申请公开(公告)号：US20050048879A1
公开(公告)日：2005-03-03
申请号：US10963292
申请日：2004-10-12
申请人： Marcus Skeem , Sergej-Tomislav Buljan , Jean Kramp
发明人： Marcus Skeem , Sergej-Tomislav Buljan , Jean Kramp
摘要： This invention relates to a method of cutting, comprising the steps of: a) providing an abrasive cutting tool comprising: i) a substrate surface having a plurality of teeth extending therefrom, and ii) a single layer of abrasive grains chemically bonded to at least a portion of each tooth to define a plurality of cutting levels parallel to the substrate surface, the cutting levels comprising a first uppermost cutting level and a second uppermost cutting level, the grains having a predetermined concentration, size and toughness, b) moving the substrate surface in an intended direction of rotation, c) contacting the uppermost cutting level of at least one tooth to a workpiece at a point of contact, d) applying a constant force to the tool directed at the point of contact, wherein the constant force is sufficient to cut the workpiece, the strength of the bond is sufficient to resist peeling, the predetermined concentration, size and toughness of the plurality of grains are such that the grains of the uppermost cutting level fracture under application of the constant force, and the hardness and thickness of the teeth are such that the portion of each tooth associated with the first uppermost cutting level abrades at about the same rate as the grains of the first uppermost cutting level fracture, thereby causing essentially simultaneous removal of the grains of the first uppermost cutting level from their bond and abrasion of the portion of each tooth associated with the first uppermost cutting level, and thereby exposing the grains of the second uppermost cutting level to the workpiece.
摘要翻译： 本发明涉及一种切割方法，包括以下步骤：a）提供研磨切割工具，其包括：i）具有从其延伸的多个齿的基底表面，和ii）至少化学键合的单层磨料颗粒 每个齿的一部分限定平行于所述基底表面的多个切割级别，所述切割级包括第一最上切割级和第二最上切割级，所述晶粒具有预定的浓度，尺寸和韧性，b）移动所述基底 表面在预期的旋转方向上，c）在接触点处将至少一个齿的最高切割水平接触工件，d）对指向接触点的工具施加恒定的力，其中恒定力是 足以切割工件，结合强度足以抵抗剥离，多个晶粒的预定浓度，尺寸和韧性使得g 在施加恒定力的情况下最上切割级断裂的下降，并且齿的硬度和厚度使得与第一最上切割级相关联的每个齿的部分以与第一最高切割级的晶粒大致相同的速率磨损 切割水平的断裂，从而基本上同时地从第一最高切割水平的与第一最上切割水平相关联的每个齿的部分的粘合和磨损中去除第一最上切割水平面的晶粒，从而将第二最上切割水平面的晶粒暴露于 工件。
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10.发明授权Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements 有权在具有尖锐切割元件的固定刀片钻头上追踪剪切刀公开(公告)号：US08839888B2
公开(公告)日：2014-09-23
申请号：US12766555
申请日：2010-04-23
申请人： David R. Hall , Ronald B. Crockett , Marcus Skeem , Francis Leany , Casey Webb
发明人： David R. Hall , Ronald B. Crockett , Marcus Skeem , Francis Leany , Casey Webb
CPC分类号： E21B10/43 , E21B10/42 , E21B10/55 , E21B2010/425
摘要： In one aspect of the invention, a fixed bladed drill bit comprises a working surface comprising a plurality of blades converging at a center of the working surface and diverging towards a gauge of the bit. Each blade comprises a plurality of pointed cutting elements and another plurality of shearing cutters. The plurality of shearing cutters comprises a first shearing cutter. The first shearing cutter on each blade tracks the first shearing cutter on other blades along a common circular cutting path.
摘要翻译： 在本发明的一个方面，固定刀片钻头包括工作表面，该工作表面包括会聚在工作表面的中心并朝向钻头的量规发散的多个叶片。 每个叶片包括多个尖锐的切割元件和另外多个剪切刀。 多个剪切刀包括第一剪切刀。 每个刀片上的第一个剪切刀沿着共同的圆形切割路径跟踪其他刀片上的第一个剪切刀。
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