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公开(公告)号：US5746280A
公开(公告)日：1998-05-05
申请号：US695509
申请日：1996-08-12
IPC分类号： E21B10/16 , E21B10/52 , E21B10/56 , E21B10/567 , E21B10/573
CPC分类号： E21B10/567 , E21B10/16 , E21B10/52 , E21B10/5673 , E21B10/5676 , E21B10/5735 , E21B17/1092
摘要： An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and includes a plurality of cutting elements arranged in generally circumferential rows, including inner heel rows, of cutting elements. At least one of the cutting elements in one of the inner rows has a crest at least partially formed of super-hard material that defines a cutting edge and cutting surface for shearing engagement with the bottom of the borehole during drilling operations, the remainder of the cutting end of the element is formed of hard, fracture-tough material for crushing engagement with the bottom of the borehole.
摘要翻译： 钻头具有一定体积，至少有一个悬臂轴承轴从钻头体向内和向下偏移。 安装刀具以在轴承轴上旋转，并且包括多个切割元件，该切割元件大致圆周地排列，包括切割元件的内脚跟行。 内排中的一个切割元件中的至少一个切割元件具有至少部分由超硬材料形成的顶部，该超硬材料限定了在钻孔操作期间与钻孔底部剪切接合的切割边缘和切割表面，其余部分 元件的切割端由硬的断裂韧性材料形成，用于与钻孔的底部破碎接合。
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公开(公告)号：US5752573A
公开(公告)日：1998-05-19
申请号：US695442
申请日：1996-08-12
IPC分类号： E21B10/16 , E21B10/52 , E21B10/56 , E21B10/567 , E21B10/50
CPC分类号： E21B10/5673 , E21B10/16 , E21B10/52
摘要： An earth-boring bit has a bit body. At least one cantilevered bearing shaft depends inwardly and downwardly from the bit body and a cutter is mounted for rotation on the bearing shaft. The cutter includes a plurality of cutting elements, at least one of which has a generally cylindrical element body of hard metal. A pair of flanks extend from the body and converge to define a crest. The crest defines at least one sharp cutting edge at its intersection with one of the flanks.
摘要翻译： 一个无聊的钻头有一点点的身体。 至少一个悬臂轴承轴从钻头体向内和向下定位，并且安装有用于在轴承轴上旋转的切割器。 切割器包括多个切割元件，其中至少一个切割元件具有大致圆柱形的金属元件本体。 一对侧翼从身体延伸并收敛以形成一个顶部。 顶部在与其中一个侧面的交叉处限定至少一个锋利的切削刃。
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公开(公告)号：US5758733A
公开(公告)日：1998-06-02
申请号：US633983
申请日：1996-04-17
申请人： Danny E. Scott , Rudolf Carl Otto Pessier , Robert J. Farr , Stephen R. Jurewicz , Kenneth M. Jensen , Paul D. Jones
发明人： Danny E. Scott , Rudolf Carl Otto Pessier , Robert J. Farr , Stephen R. Jurewicz , Kenneth M. Jensen , Paul D. Jones
IPC分类号： E21B10/16 , E21B10/46 , E21B10/52 , E21B10/56 , E21B10/567
CPC分类号： E21B10/5673 , E21B10/16 , E21B10/52
摘要： An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and includes a plurality of cutting elements. At least one of the cutting elements has a generally cylindrical body formed of hard metal with a convex cutting end. A plurality of substantially linear, parallel lands are formed on the cutting end of the body. The lands have arcuate top surfaces and define grooves between the land having arcuate bottom surfaces. A layer of super-hard material is formed on the cutting end of the body and engages the lands and grooves formed thereon.
摘要翻译： 钻头具有一定体积，至少有一个悬臂轴承轴从钻头体向内和向下偏移。 安装刀具用于在轴承轴上旋转并且包括多个切割元件。 至少一个切割元件具有由具有凸形切割端的硬质金属形成的大致圆柱形的主体。 在主体的切割端上形成有多个基本上线性的平行的平台。 土地具有弧形的顶部表面并且在具有弓形底部表面的区域之间限定凹槽。 一层超硬材料形成在主体的切割端上并与其上形成的凸台和凹槽接合。
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公开(公告)号：US09067304B2
公开(公告)日：2015-06-30
申请号：US13618927
申请日：2012-09-14
CPC分类号： B24D18/0009 , B01J3/06 , B01J2203/062 , B01J2203/0645 , B24D3/06 , B24D3/14 , B24D99/005 , E21B10/55
摘要： Methods for forming cutting elements, methods for forming polycrystalline compacts, and related polycrystalline compacts are disclosed. Grains of a hard material are subjected to a high-pressure, high-temperature process to form a polycrystalline compact. Inclusion of at least one relatively quick spike in system pressure or temperature during an otherwise plateaued temperature or pressure stage accommodates formation of inter-granular bonds between the grains. The brevity of the peak stage may avoid undesirable grain growth. Embodiments of the methods may also include at least one of oscillating at least one system condition (e.g., pressure, temperature) and subjecting the grains to ultrasonic or mechanical vibrations. A resulting polycrystalline compact may include a high density of inter-granularly bonded hard material with a minimized amount of catalyst material, and may provide improved thermal stability, wear resistance, toughness, and behavior during use of a cutting element incorporating the polycrystalline compact.
摘要翻译： 公开了用于形成切割元件的方法，用于形成多晶压块的方法和相关的多晶压块。 对硬质材料的颗粒进行高压高温处理以形成多晶压块。 在另外的平稳温度或压力阶段期间，将系统压力或温度中的至少一个相对较快的尖峰包含在颗粒之间形成颗粒间结合。 高峰阶段的简洁可以避免不必要的晶粒生长。 方法的实施例还可以包括振荡至少一个系统状态（例如，压力，温度）和使晶粒经受超声或机械振动中的至少一个。 所得到的多晶压块可以包括具有最小量的催化剂材料的高密度颗粒间结合的硬质材料，并且可以在使用结合多晶压块的切割元件时提供改善的热稳定性，耐磨性，韧性和性能。
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5.发明授权Methods of forming cutting elements having different interstitial materials in multi-layer diamond tables 有权在多层金刚石台中形成具有不同间隙材料的切割元件的方法公开(公告)号：US08858663B2
公开(公告)日：2014-10-14
申请号：US13430225
申请日：2012-03-26
申请人： Kurtis Schmitz , Danny E. Scott
发明人： Kurtis Schmitz , Danny E. Scott
IPC分类号： B22F3/14 , B24D99/00 , C22C26/00 , E21B10/567 , E21B10/55
CPC分类号： E21B10/567 , B22F3/14 , B24D99/005 , C22C26/00 , C22C2204/00 , E21B10/55
摘要： Methods of forming cutting elements for earth-boring tools include providing a barrier material between a first powder and a second powder each comprising diamond grains, and subjecting the powders and barrier material to high temperature and high pressure conditions to form polycrystalline diamond material. The formation of the polycrystalline diamond material is catalyzed, and catalytic material may be hindered from migrating across the layer of barrier material. Cutting elements for use in earth-boring tools include a barrier material disposed between a first layer of polycrystalline diamond material and a second layer of polycrystalline diamond material. Earth-boring tools include one or more such cutting elements for cutting an earth formation.
摘要翻译： 形成钻孔工具的切割元件的方法包括在第一粉末和包含金刚石晶粒的第二粉末之间提供阻挡材料，以及使粉末和阻挡材料经受高温和高压条件以形成多晶金刚石材料。 催化多晶金刚石材料的形成，并且阻止催化材料迁移穿过阻挡材料层。 用于钻孔工具的切割元件包括设置在第一层多晶金刚石材料和第二层多晶金刚石材料之间的阻挡材料。 钻孔工具包括用于切割地层的一个或多个这样的切割元件。
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6.发明授权Cutting elements configured to generate shear lips during use in cutting, earth-boring tools including such cutting elements, and methods of forming and using such cutting elements and earth-boring tools 有权在切割使用期间配置成产生剪切唇缘的切割元件，包括这种切割元件的钻孔工具以及形成和使用这种切割元件和钻孔工具的方法公开(公告)号：US08800692B2
公开(公告)日：2014-08-12
申请号：US12896587
申请日：2010-10-01
IPC分类号： E21B10/46
CPC分类号： E21B10/5735 , B22F2998/00 , B24D3/10 , B24D18/0009 , C23C30/005 , E21B10/43 , E21B10/567 , C22C26/00
摘要： Cutting elements for earth-boring tools may generate a shear lip at a wear scar thereon during cutting. A diamond table may exhibit a relatively high wear resistance, and an edge of the diamond table may be chamfered, the combination of which may result in the formation of a shear lip. Cutting elements may comprise multi-layer diamond tables that result in the formation of a shear lip during cutting. Earth-boring tools include such cutting elements. Methods of forming cutting elements may include selectively designing and configuring the cutting elements to form a shear lip. Methods of cutting a formation using an earth-boring tool include cutting the formation with a cutting element on the tool, and generating a shear lip at a wear scar on the cutting element. The cutting element may be configured such that the shear lip comprises diamond material of the cutting element.
摘要翻译： 用于钻孔工具的切割元件可能在切割期间在其上的磨损疤痕上产生剪切唇。 钻石台可能具有较高的耐磨性，并且金刚石台的边缘可能会倒角，其结合可能导致形成剪切唇。 切割元件可以包括导致在切割期间形成剪切唇缘的多层金刚石台。 钻孔工具包括这样的切割元件。 形成切割元件的方法可以包括选择性地设计和配置切割元件以形成剪切唇缘。 使用钻孔工具切割地层的方法包括用工具上的切割元件切割地层，并在切割元件上产生磨损痕迹的剪切唇缘。 切割元件可以被配置成使得剪切唇缘包括切割元件的金刚石材料。
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7.发明授权Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts 有权包括纳米颗粒夹杂物，切割元件和包括这种压块的钻孔工具的多晶压块以及形成这种压块的方法公开(公告)号：US08496076B2
公开(公告)日：2013-07-30
申请号：US12901253
申请日：2010-10-08
IPC分类号： E21B10/36
CPC分类号： E21B10/56 , B24D18/0009 , C01B32/25 , C04B35/52 , C04B35/6303 , C04B35/645 , C04B2235/3839 , C04B2235/3856 , C04B2235/3886 , C04B2235/427 , C22C26/00 , E21B10/36 , E21B10/54 , E21B10/567 , Y10T428/25
摘要： Polycrystalline compacts include non-catalytic nanoparticles in interstitial spaces between interbonded grains of hard material in a polycrystalline hard material. Cutting elements and earth-boring tools include such polycrystalline compacts. Methods of forming polycrystalline compacts include sintering hard particles and non-catalytic nanoparticles to form a polycrystalline material. Methods of forming cutting elements include infiltrating interstitial spaces between interbonded grains of hard material in a polycrystalline material with a plurality of non-catalytic nanoparticles.
摘要翻译： 多晶压块包括在多晶硬质材料中的硬质材料的键合间的间隙中的非催化纳米颗粒。 切割元件和钻孔工具包括这种多晶压块。 形成多晶压块的方法包括烧结硬颗粒和非催化纳米颗粒以形成多晶材料。 形成切割元件的方法包括在多晶材料中与多种非催化纳米颗粒之间的硬质材料的结合晶粒之间的渗透间隙。
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公开(公告)号：US20130067825A1
公开(公告)日：2013-03-21
申请号：US13618927
申请日：2012-09-14
CPC分类号： B24D18/0009 , B01J3/06 , B01J2203/062 , B01J2203/0645 , B24D3/06 , B24D3/14 , B24D99/005 , E21B10/55
摘要： Methods for forming cutting elements, methods for forming polycrystalline compacts, and related polycrystalline compacts are disclosed. Grains of a hard material are subjected to a high pressure, high temperature process to form a polycrystalline compact. Inclusion of at least one relatively quick spike in system pressure or temperature during an otherwise plateaued temperature or pressure stage accommodates formation of inter-granular bonds between the grains. The brevity of the peak stage may avoid undesirable grain growth. Embodiments of the methods may also include at least one of oscillating at least one system condition (e.g., pressure, temperature) and subjecting the grains to ultrasonic or mechanical vibrations. A resulting polycrystalline compact may include a high density of inter-granularly bonded hard material with a minimized amount of catalyst material, and may provide improved thermal stability, wear resistance, toughness, and behavior during use of a cutting element incorporating the polycrystalline compact.
摘要翻译： 公开了用于形成切割元件的方法，用于形成多晶压块的方法和相关的多晶压块。 将硬质材料的颗粒进行高压高温处理以形成多晶压块。 在另外的平稳温度或压力阶段期间，将系统压力或温度中的至少一个相对较快的尖峰包含在颗粒之间形成颗粒间结合。 高峰阶段的简洁可以避免不必要的晶粒生长。 方法的实施例还可以包括振荡至少一个系统状态（例如，压力，温度）和使晶粒经受超声或机械振动中的至少一个。 所得到的多晶压块可以包括具有最小量的催化剂材料的高密度颗粒间结合的硬质材料，并且可以在使用结合多晶压块的切割元件时提供改善的热稳定性，耐磨性，韧性和性能。
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9.发明授权Diamond-enhanced cutting elements, earth-boring tools employing diamond-enhanced cutting elements, and methods of making diamond-enhanced cutting elements 有权钻石增强切割元件，采用钻石增强切割元素的钻孔工具，以及制作金刚石增强切割元件的方法公开(公告)号：US08292006B2
公开(公告)日：2012-10-23
申请号：US12508440
申请日：2009-07-23
申请人： Danny E. Scott , Nicholas J. Lyons
发明人： Danny E. Scott , Nicholas J. Lyons
IPC分类号： E21B10/46
CPC分类号： E21B10/56 , B22F2999/00 , B24D3/10 , C22C26/00 , C22C2204/00 , B22F2207/03
摘要： Cutting elements for use in earth-boring applications include a substrate, a transition layer, and a working layer. The transition layer and the working layer comprise a continuous matrix phase and a discontinuous diamond phase dispersed throughout the matrix phase. The concentration of diamond in the working layer is higher than in the transition layer. Earth-boring tools include at least one such cutting element. Methods of making cutting elements and earth-boring tools include mixing diamond crystals with matrix particles to form a mixture. The mixture is formulated in such a manner as cause the diamond crystals to comprise about 50% or more by volume of the solid matter in the mixture. The mixture is sintered to form a working layer of a cutting element that is at least substantially free of polycrystalline diamond material and that includes the diamond crystals dispersed within a continuous matrix phase formed from the matrix particles.
摘要翻译： 用于镗孔应用的切割元件包括基底，过渡层和工作层。 过渡层和工作层包括分散在整个基质相中的连续的基质相和不连续的金刚石相。 工作层中金刚石的浓度高于过渡层。 钻孔工具包括至少一个这样的切割元件。 制造切割元件和钻孔工具的方法包括将金刚石晶体与基质颗粒混合以形成混合物。 混合物配制成使金刚石晶体占混合物中固体物质的约50％或更多的体积。 混合物被烧结以形成至少基本上不含多晶金刚石材料的切割元件的工作层，并且包括分散在由基质颗粒形成的连续基质相中的金刚石晶体。
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10.发明授权Cutting elements having different interstitial materials in multi-layer diamond tables, earth-boring tools including such cutting elements, and methods of forming same 有权在多层金刚石台中具有不同间隙材料的切割元件，包括这种切割元件的钻孔工具及其形成方法公开(公告)号：US08191658B2
公开(公告)日：2012-06-05
申请号：US12544954
申请日：2009-08-20
申请人： Kurtis Schmitz , Danny E. Scott
发明人： Kurtis Schmitz , Danny E. Scott
IPC分类号： E21B10/36
CPC分类号： E21B10/567 , B22F3/14 , B24D99/005 , C22C26/00 , C22C2204/00 , E21B10/55
摘要： Methods of forming cutting elements for earth-boring tools include providing a barrier material between a first powder and a second powder each comprising diamond grains, and subjecting the powders and barrier material to high temperature and high pressure conditions to form polycrystalline diamond material. The formation of the polycrystalline diamond material is catalyzed, and catalytic material may be hindered from migrating across the layer of barrier material. Cutting elements for use in earth-boring tools include a barrier material disposed between a first layer of polycrystalline diamond material and a second layer of polycrystalline diamond material. Earth-boring tools include one or more such cutting elements for cutting an earth formation.
摘要翻译： 形成钻孔工具的切割元件的方法包括在第一粉末和包含金刚石晶粒的第二粉末之间提供阻挡材料，以及使粉末和阻挡材料经受高温和高压条件以形成多晶金刚石材料。 催化多晶金刚石材料的形成，并且阻止催化材料迁移穿过阻挡材料层。 用于钻孔工具的切割元件包括设置在第一层多晶金刚石材料和第二层多晶金刚石材料之间的阻挡材料。 钻孔工具包括用于切割地层的一个或多个这样的切割元件。
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