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71. 发明授权

US08292985B2 Materials for enhancing the durability of earth-boring bits, and methods of forming such materials 有权
标题翻译：用于提高钻头耐久性的材料，以及形成这种材料的方法
公开(公告)号：US08292985B2
公开(公告)日：2012-10-23
申请号：US12391690
申请日：2009-02-24
申请人： David A. Curry , James L. Overstreet , Jimmy W. Eason
发明人： David A. Curry , James L. Overstreet , Jimmy W. Eason
IPC分类号： C22C29/08 , C22C1/04
CPC分类号： C22C29/08 , B22F2005/001 , B22F2998/00 , E21B10/46 , B22F1/0014 , B22F1/0048
摘要： An earth-boring drill bit having a bit body with a cutting component formed from a tungsten carbide composite material is disclosed. The composite material includes a binder and tungsten carbide crystals comprising sintered pellets. The composite material may be used as a hardfacing on the body and/or cutting elements, or be used to form portions or all of the body and cutting elements. The pellets may be formed with a single mode or multi-modal size distribution of the crystals.
摘要翻译：公开了一种具有由碳化钨复合材料形成的切割部件的钻头体的钻孔钻头。复合材料包括粘合剂和包含烧结颗粒的碳化钨晶体。复合材料可以用作身体和/或切割元件上的硬化面，或者用于形成身体和切割元件的部分或全部。颗粒可以用晶体的单模或多模尺寸分布形成。

72. 发明申请

US20120261196A1 HIGH DIAMOND FRAME STRENGTH PCD MATERIALS 有权
标题翻译：高金刚石框架强度PCD材料
公开(公告)号：US20120261196A1
公开(公告)日：2012-10-18
申请号：US13449641
申请日：2012-04-18
申请人： Feng Yu , J. Daniel Belnap
发明人： Feng Yu , J. Daniel Belnap
IPC分类号： E21B10/46
CPC分类号： E21B10/55 , B24D18/0009 , E21B10/46
摘要： The present disclosure relates to cutting elements incorporating polycrystalline diamond bodies used for subterranean drilling applications, and more particularly, to polycrystalline diamond bodies having high diamond frame strength and methods for forming and evaluating such polycrystalline diamond bodies. A polycrystalline diamond body is provided, having a top surface, a cutting edge meeting the top surface, and a first region including at least a portion of the cutting edge. The first portion exhibits a diamond frame strength of about 1200 MPa or greater, or about 1300 MPa or greater.
摘要翻译：本公开涉及包括用于地下钻井应用的多晶金刚石体的切割元件，更具体地，涉及具有高金刚石框架强度的多晶金刚石体以及用于形成和评估这种多晶金刚石体的方法。提供多晶金刚石体，其具有顶表面，与顶表面相符的切削刃，以及包括切削刃的至少一部分的第一区域。第一部分具有约1200MPa或更大，或约1300MPa或更大的金刚石框架强度。

73. 发明申请

US20120234610A1 CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS 有权
标题翻译：固定切割钻头和其他切割工具的切割结构
公开(公告)号：US20120234610A1
公开(公告)日：2012-09-20
申请号：US13370862
申请日：2012-02-10
申请人： Michael G. Azar , Bala Durairajan , Madapusi K. Keshavan
发明人： Michael G. Azar , Bala Durairajan , Madapusi K. Keshavan
IPC分类号： E21B10/46
CPC分类号： E21B10/62 , E21B10/26 , E21B10/42 , E21B10/43 , E21B10/46 , E21B10/54 , E21B10/55 , E21B10/56 , E21B10/567 , E21B10/5673 , E21B10/627 , E21B10/633 , E21B2010/425 , E21B2010/545 , E21B2010/561 , E21B2010/562 , E21B2010/622 , E21B2010/624
摘要： A downhole cutting tool may include a tool body; a plurality of blades extending azimuthally from the tool body; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least two conical cutting elements comprising a substrate and a diamond layer having a conical cutting end, wherein at least one of the at least two conical cutting elements has a positive back rake angle, and at least one of the at least two conical cutting elements has a negative back rake angle.
摘要翻译：井下切削工具可以包括工具主体; 多个叶片，其从工具体方向延伸; 以及多个切割元件，所述多个切割元件设置在所述多个刀片上，所述多个切割元件包括：至少两个锥形切割元件，包括基底和具有锥形切割端的金刚石层，其中所述至少两个锥形切割元件具有正的后倾角，并且至少两个锥形切割元件中的至少一个具有负的后倾角。

74. 发明申请

US20120205163A1 KERFING HYBRID DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS 有权
标题翻译： KERFING混合钻头和其他卧式切割工具
公开(公告)号：US20120205163A1
公开(公告)日：2012-08-16
申请号：US13370734
申请日：2012-02-10
申请人： Michael G. Azar , Bala Durairajan , Madapusi K. Keshavan
发明人： Michael G. Azar , Bala Durairajan , Madapusi K. Keshavan
IPC分类号： E21B10/36
CPC分类号： E21B10/62 , E21B10/26 , E21B10/42 , E21B10/43 , E21B10/46 , E21B10/54 , E21B10/55 , E21B10/56 , E21B10/567 , E21B10/5673 , E21B10/627 , E21B10/633 , E21B2010/425 , E21B2010/545 , E21B2010/561 , E21B2010/562 , E21B2010/622 , E21B2010/624
摘要： A drill bit for drilling a borehole in earth formations may include a bit body having a bit axis and a bit face; a plurality of blades extending radially along the bit face; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least one cutter comprising a substrate and a diamond table having a substantially planar cutting face; and at least two conical cutting elements comprising a substrate and a diamond layer having a conical cutting end, wherein in a rotated view of the plurality of cutting elements into a single plane, the at least one cutter is located a radial position from the bit axis that is intermediate the radial positions of the at least two conical cutting elements.
摘要翻译：用于在地层中钻孔的钻头可以包括具有钻头轴线和钻头面的钻头体; 沿着钻头面径向延伸的多个刀片; 以及设置在所述多个刀片上的多个切割元件，所述多个切割元件包括：至少一个切割器，包括基底和具有基本上平面的切割面的金刚石台; 以及至少两个锥形切割元件，其包括基底和具有锥形切割端的金刚石层，其中在所述多个切割元件的旋转视图中成为单个平面，所述至少一个切割器位于距钻头轴线的径向位置其位于所述至少两个锥形切割元件的径向位置的中间。

75. 发明授权

US08201648B2 Earth-boring particle-matrix rotary drill bit and method of making the same 有权
标题翻译：钻孔颗粒矩阵旋转钻头及其制作方法
公开(公告)号：US08201648B2
公开(公告)日：2012-06-19
申请号：US12361653
申请日：2009-01-29
申请人： Heeman Choe , John Stevens , Eric Sullivan
发明人： Heeman Choe , John Stevens , Eric Sullivan
IPC分类号： E21B10/00 , E21B10/36
CPC分类号： E21B10/46 , B22D19/14 , B22F2005/001 , C22C9/01 , C22C9/04 , C22C14/00 , C22C19/00 , C22C19/03 , C22C26/00 , C22C32/00 , C22C38/00 , E21B10/00
摘要： An earth-boring rotary drill bit includes a bit body configured to carry one or more cutters for engaging a subterranean earth formation, the bit body comprising a particle-matrix composite material having a plurality of hard particles dispersed throughout a matrix material, the matrix material comprising a shape memory alloy. The matrix material comprises a metal alloy configured to undergo a reversible phase transformation between an austenitic phase and a martensitic phase. The matrix material may include an Ni-based alloy, Cu-based alloy, Co-based alloy, Fe-based alloy or Ti-based alloy. The drill bit may be made by a method that includes: providing a plurality of hard particles in a mold to define a particle precursor of the bit body; infiltrating the particle precursor of the bit body with a molten matrix material comprising a shape memory alloy forming a particle-matrix mixture; and cooling the molten particle-matrix mixture to solidify the matrix material and forming a bit body having a particle-matrix composite material comprising a shape memory alloy.
摘要翻译：钻头旋转钻头包括构造成承载用于接合地下地层的一个或多个切割器的钻头体，所述钻头体包括具有分散在基体材料中的多个硬颗粒的颗粒 - 基质复合材料，所述基体材料包括形状记忆合金。基体材料包括配置成在奥氏体相和马氏体相之间经历可逆相变的金属合金。基体材料可以包括Ni基合金，Cu基合金，Co基合金，Fe基合金或Ti基合金。钻头可以通过一种方法制成，该方法包括：在模具中提供多个硬质颗粒以限定钻头体的颗粒前体; 用包含形成记忆合金的熔融基质材料渗透钻头体的颗粒前体形成颗粒 - 基质混合物; 并冷却熔融的颗粒 - 基质混合物以固化基质材料并形成具有包含形状记忆合金的颗粒 - 基体复合材料的钻头体。

76. 发明授权

US08151911B1 Polycrystalline diamond compact, methods of fabricating same, and rotary drill bit using same 有权
标题翻译：多晶金刚石复合体，其制造方法以及使用其的旋转钻头
公开(公告)号：US08151911B1
公开(公告)日：2012-04-10
申请号：US12858032
申请日：2010-08-17
申请人： David P. Miess
发明人： David P. Miess
IPC分类号： E21B10/36 , E21B10/46
CPC分类号： E21B10/46 , B22F2999/00 , C22C1/051 , C22C26/00 , C22C29/065 , C22C29/08 , C22C2026/006 , E21B10/567 , B22F3/14
摘要： Embodiments of the present invention relate to superabrasive materials, superabrasive compacts employing such superabrasive materials, and methods of fabricating such superabrasive materials and compacts. In one embodiment, a superabrasive material includes a matrix comprising a plurality of coarse-sized superabrasive grains, with the coarse-sized superabrasive grains exhibiting a coarse-sized average grain size. The superabrasive material further includes a plurality of superabrasive regions dispersed within the matrix, with each superabrasive region including a plurality of fine-sized superabrasive grains exhibiting a fine-sized average grain size less than the coarse-sized average grain size. In another embodiment, the superabrasive materials may be employed in a superabrasive compact. The superabrasive compact comprises a substrate including a superabrasive table comprising any of the disclosed superabrasive materials. Further embodiments are directed to applications utilizing the disclosed superabrasive articles in applications, such as rotary drill bits.
摘要翻译：本发明的实施例涉及超研磨材料，使用这种超级磨料的超级磨料，以及制造这种超级磨料和压块的方法。在一个实施方案中，超级磨料材料包括包含多个粗大型超磨料颗粒的基质，粗大粒度的超级磨料颗粒具有粗大的平均粒度。超研磨材料还包括分散在基体内的多个超级磨料区域，每个超级磨料区域包括多个精细尺寸的超磨料颗粒，其表现出小于粗大平均粒度的细小平均粒度。在另一个实施方案中，超研磨材料可以用于超级磨料中。超级磨料压块包括包括包含任何所公开的超级磨料材料的超级磨料工作台的衬底。其它实施例涉及在应用中利用所公开的超级磨料制品的应用，例如旋转钻头。

77. 发明申请

US20120073879A1 DOWNHOLE REAMER ASYMMETRIC CUTTING STRUCTURES 有权
标题翻译：倒角不对称切割结构
公开(公告)号：US20120073879A1
公开(公告)日：2012-03-29
申请号：US12893652
申请日：2010-09-29
申请人： Navish Makkar , Tommy G. Ray , Manoj Mahajan , Dwayne P. Terracina , Sameer Bhoite
发明人： Navish Makkar , Tommy G. Ray , Manoj Mahajan , Dwayne P. Terracina , Sameer Bhoite
IPC分类号： E21B10/26
CPC分类号： E21B10/46 , E21B10/32 , E21B10/322 , E21B10/43
摘要： A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon, wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.
摘要翻译：用于扩孔钻孔的地下钻孔中的切割结构包括多个切割块，其可从铰刀主体远离扩孔器主体的中心轴线径向延伸，多个切割块中的每一个包括至少一个其中在所述多个切割器块中的每一个上的所述至少一个切割刀片之间围绕所述铰刀主体的中心轴线的角度间隔是不相等的。

78. 发明授权

US08083012B2 Diamond bonded construction with thermally stable region 有权
标题翻译：具有热稳定区域的金刚石粘结结构
公开(公告)号：US08083012B2
公开(公告)日：2011-12-27
申请号：US12245582
申请日：2008-10-03
申请人： Georgiy Voronin , J. Daniel Belnap , Feng Yu , Benjamin Randall
发明人： Georgiy Voronin , J. Daniel Belnap , Feng Yu , Benjamin Randall
IPC分类号： E21B10/46
CPC分类号： E21B10/567 , B22F7/062 , B22F2003/244 , B22F2005/001 , B22F2998/10 , B24D3/10 , C22C26/00 , C22C2204/00 , E21B10/46 , E21B10/5673 , E21B10/5676 , B22F3/24 , B22F3/26
摘要： Diamond bonded constructions comprise a polycrystalline diamond body having a matrix phase of bonded-together diamond grains and a plurality of interstitial regions between the diamond grains including a catalyst material used to form the diamond body disposed within the interstitial regions. A sintered thermally stable diamond element is disposed within and bonded to the diamond body, and is configured and positioned to form part of a working surface. The thermally stable diamond element is bonded to the polycrystalline diamond body, and a substrate is bonded to the polycrystalline diamond body. The thermally stable diamond element comprises a plurality of bonded-together diamond grains and interstitial regions, wherein the interstitial regions are substantially free of a catalyst material used to make or sinter the thermally stable diamond element. A barrier material may be disposed over or infiltrated into one or more surfaces of the thermally stable diamond element.
摘要翻译：金刚石结合结构包括具有结合金刚石晶粒的基体相和金刚石晶粒之间的多个间隙区域的多晶金刚石体，包括用于形成设置在间隙区域内的金刚石体的催化剂材料。烧结的热稳定金刚石元件设置在金刚石体内并结合到金刚石体上，并被构造和定位以形成工作表面的一部分。热稳定金刚石元件结合到多晶金刚石体上，并且将基底结合到多晶金刚石体。热稳定金刚石元件包括多个接合在一起的金刚石晶粒和间隙区域，其中间隙区域基本上不含用于制造或烧结热稳定金刚石元件的催化剂材料。阻挡材料可以设置在热稳定金刚石元件的一个或多个表面上或者渗入其中。

79. 发明申请

US20110308865A1 DOWNHOLE CUTTING TOOL, CUTTING ELEMENTS AND METHOD 有权
标题翻译：卧式切割工具，切割元件和方法
公开(公告)号：US20110308865A1
公开(公告)日：2011-12-22
申请号：US13013639
申请日：2011-01-25
申请人： Donald Stuart Stroud , Donald Gregory Stroud
发明人： Donald Stuart Stroud , Donald Gregory Stroud
IPC分类号： E21B10/36
CPC分类号： E21B29/002 , E21B10/46
摘要： A cutting tool that has a leading or cutting surface that includes affixed thereto a plurality of irregular nine-faced polyhedrons or three-dimensional solid elements with nine faces, wherein each of the nine faces is a polygon and has a predetermined distance from each face to an opposing cutting edge and wherein the predetermined distance from each of the nine faces to its opposing cutting edge is equal for all of each of the nine faces, such that regardless of which of the nine faces is resting on a flat surface, the predetermined distance is the same.
摘要翻译：一种切割工具，其具有引导或切割表面，其包括固定有多个不规则的九面多面体或具有九个面的三维实体元件，其中所述九个面中的每一个是多边形，并且具有从每个面到相对的切割边缘，并且其中从九个面中的每一个到其相对的切割边缘的预定距离对于所有九个面中的每一个都是相等的，使得不管九个面中的哪一个是搁置在平坦表面上，预定距离是一样的

80. 发明申请

US20110253459A1 POLYCRYSTALLINE DIAMOND COMPOSITE COMPACT ELEMENT, TOOLS INCORPORATING SAME AND METHOD FOR MAKING SAME 审中-公开
标题翻译：多晶金刚石复合材料复合材料及其制造方法及其制造方法
公开(公告)号：US20110253459A1
公开(公告)日：2011-10-20
申请号：US13124867
申请日：2009-10-21
申请人： Geoffrey John Davies , Mhlonishwa Cyprian Nzama , Roger William Nigel Nilen
发明人： Geoffrey John Davies , Mhlonishwa Cyprian Nzama , Roger William Nigel Nilen
IPC分类号： E21B10/36 , B24D3/10
CPC分类号： B24D3/10 , B22F7/062 , B22F2999/00 , B23B27/14 , B23B27/148 , B23B2226/315 , B24D18/0009 , C22C26/00 , C22C29/06 , C22C2204/00 , E21B10/46 , E21B10/567 , E21B10/5735 , B22F2207/03
摘要： The invention relates to a PCD composite compact element comprising a PCD structure integrally bonded at an interface to a cemented carbide substrate; the PCD structure comprising coherently bonded diamond grains having a mean size no greater than 15 microns; the cemented carbide substrate comprising carbide particles dispersed in a metallic binder, the carbide particles comprising a carbide compound of a metal; wherein the ratio of the amount of metallic binder to the amount of the metal at points in the substrate deviates from a mean value by at most 20 percent of the mean value. The invention further relates to a method for making a PDC compact element comprising a PCD structure integrally bonded to a substrate formed of cemented carbide; the method including introducing a source of excess carbon to the substrate at a bonding surface of the substrate to form a carburised substrate; contacting an aggregated mass of diamond grains with the carburised substrate; and sintering the diamond grains in the presence of a solvent/catalyst material for diamond; wherein the mean size of the diamond grains in the aggregated mass is no greater than 30 microns.
摘要翻译：本发明涉及一种PCD复合压实元件，其包括在与硬质合金基底的界面处整体结合的PCD结构; PCD结构包括平均尺寸不大于15微米的相干结合的金刚石晶粒; 所述硬质合金基体包含分散在金属粘合剂中的碳化物颗粒，所述碳化物颗粒包含金属的碳化物化合物; 其中金属粘合剂的量与基材中的金属量的比例偏离平均值的至多20％的平均值。本发明还涉及一种用于制造PDC紧凑件的方法，所述PDC紧凑件包括与由硬质合金形成的基底一体地结合的PCD结构; 所述方法包括在所述基板的接合表面处将过量碳源引入所述基板以形成渗碳基板; 使金刚石颗粒的聚集体与渗碳基材接触; 并在金刚石溶剂/催化剂材料存在下烧结金刚石晶粒; 其中所述聚集体中的所述金刚石颗粒的平均尺寸不大于30微米。

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