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1.发明申请COMPONENTS AND MOTORS FOR DOWNHOLE TOOLS AND METHODS OF APPLYING HARDFACING TO SURFACES THEREOF 有权用于井下工具的组件和电机以及将其施加于其表面上的方法公开(公告)号：US20120018227A1
公开(公告)日：2012-01-26
申请号：US13189197
申请日：2011-07-22
CPC分类号： E21B4/02 , F03C2/08 , F04C2/1075 , F04C13/008 , F04C2230/91 , F04C2270/16 , F05C2225/00 , F05C2251/10 , F05C2253/04 , Y10T156/10
摘要： A component for a downhole tool includes a rotor and a hardfacing precursor. The hardfacing precursor includes a polymeric material, hard particles, and a metal. A hydraulic drilling motor includes a stator, a rotor, and a sintered hardfacing material on an outer surface of the rotor or an inner surface of the stator. Methods of applying hardfacing to surfaces include forming a paste of hard particles, metal matrix particles, a polymeric material, and a solvent. The solvent is removed from the paste to form a sheet, which is applied to a surface and heated. A component for a downhole tool includes a first hardfacing material, a second hardfacing material over the first hardfacing material and defining a plurality of pores, and a metal disposed within at least some of the pores. The metal has a melting point lower than a melting point of the second hardfacing material.
摘要翻译： 用于井下工具的部件包括转子和表面硬化前体。 表面硬化前体包括聚合物材料，硬质颗粒和金属。 液压钻井马达在转子的外表面或定子的内表面上包括定子，转子和烧结的表面硬化材料。 向表面施加硬化面的方法包括形成硬颗粒，金属基质颗粒，聚合物材料和溶剂的糊料。 将溶剂从糊剂中除去以形成片材，将其施加到表面并加热。 用于井下工具的部件包括第一表面硬化材料，在第一表面硬化材料上方的第二表面硬化材料并且限定多个孔，以及设置在至少一些孔内的金属。 金属的熔点低于第二表面硬化材料的熔点。
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公开(公告)号：US20110073233A1
公开(公告)日：2011-03-31
申请号：US12570934
申请日：2009-09-30
IPC分类号： B32B37/06
CPC分类号： E21B10/46 , B23K31/02 , B23K2101/002 , Y10T156/10
摘要： A method of hardfacing a bit using a hardfacing sheet. The hardfacing sheet includes a hardfacing composition in a carrier material. The sheet is placed on a portion of the bit body, the sheet is heated at a designated spot using a localized heating source. At the same time, oxygen is substantially purged from the zone adjacent the designated spot. The heat debinds the carrier material from the sheet leaving the hardfacing composition. Continued heating transforms the hardfacing composition into hardfacing that is fused to the bit body.
摘要翻译： 使用表面硬化面硬化一点的方法。 表面硬化片包括载体材料中的表面硬化组合物。 片材放置在钻头体的一部分上，使用局部加热源将片材加热到指定的位置。 同时，氧气基本上从邻近指定点的区域清除。 热量将载体材料从片材上剥离出来，使其表面硬化。 持续加热将表面硬化组合物变形成与钻头体熔合的硬化面。
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3.发明授权Components and motors for downhole tools and methods of applying hardfacing to surfaces thereof 有权用于井下工具的部件和电机以及将其表面施加于其上的方法公开(公告)号：US09045943B2
公开(公告)日：2015-06-02
申请号：US13189197
申请日：2011-07-22
CPC分类号： E21B4/02 , F03C2/08 , F04C2/1075 , F04C13/008 , F04C2230/91 , F04C2270/16 , F05C2225/00 , F05C2251/10 , F05C2253/04 , Y10T156/10
摘要： A component for a downhole tool includes a rotor and a hardfacing precursor. The hardfacing precursor includes a polymeric material, hard particles, and a metal. A hydraulic drilling motor includes a stator, a rotor, and a sintered hardfacing material on an outer surface of the rotor or an inner surface of the stator. Methods of applying hardfacing to surfaces include forming a paste of hard particles, metal matrix particles, a polymeric material, and a solvent. The solvent is removed from the paste to form a sheet, which is applied to a surface and heated. A component for a downhole tool includes a first hardfacing material, a second hardfacing material over the first hardfacing material and defining a plurality of pores, and a metal disposed within at least some of the pores. The metal has a melting point lower than a melting point of the second hardfacing material.
摘要翻译： 用于井下工具的部件包括转子和表面硬化前体。 表面硬化前体包括聚合物材料，硬质颗粒和金属。 液压钻井马达在转子的外表面或定子的内表面上包括定子，转子和烧结的表面硬化材料。 向表面施加硬化面的方法包括形成硬颗粒，金属基质颗粒，聚合物材料和溶剂的糊料。 将溶剂从糊剂中除去以形成片材，将其施加到表面并加热。 用于井下工具的部件包括第一表面硬化材料，第一表面硬化材料上的第二表面硬化材料并限定多个孔，以及设置在至少一些孔内的金属。 金属的熔点低于第二表面硬化材料的熔点。
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4.发明授权Methods of forming and repairing cutting element pockets in earth-boring tools with depth-of-cut control features, and tools and structures formed by such methods 有权在钻孔工具中形成和修复切割元件凹坑的方法具有深度切割控制特征，以及通过这种方法形成的工具和结构公开(公告)号：US08943663B2
公开(公告)日：2015-02-03
申请号：US12424248
申请日：2009-04-15
CPC分类号： E21B10/54 , B23P15/28 , E21B10/43 , E21B10/55 , E21B10/62 , Y10T29/49885 , Y10T29/49982
摘要： Methods of forming and repairing earth-boring tools include providing wear-resistant material over a temporary displacement member to form a cutting element pocket in a body and a depth-of-cut control feature using the wear-resistant material. In some embodiments, the wear-resistant material may comprise a particle-matrix composite material. For example, a hardfacing material may be built up over a temporary displacement member to form or repair a cutting element pocket and provide a depth-of-cut control feature. Earth-boring tools include a depth-of-cut control feature comprising a wear-resistant material. The depth-of-cut control feature is configured to limit a depth-of-cut of a cutting element secured within a cutting element pocket partially defined by at least one surface of the depth-of-cut control feature. Intermediate structures formed during fabrication of earth-boring tools include a depth-of-cut control feature extending over a temporary displacement member.
摘要翻译： 形成和修理钻孔工具的方法包括在临时移位构件上设置耐磨材料，以在主体中形成切割元件袋，并使用耐磨材料形成切割深度控制特征。 在一些实施例中，耐磨材料可以包括颗粒 - 基质复合材料。 例如，可以在临时位移构件上构建表面硬化材料以形成或修复切割元件凹部并提供切割深度控制特征。 钻孔工具包括具有耐磨材料的深度切割控制特征。 切割深度控制特征被配置为限制固定在切割元件袋内的切割元件的切割深度，其部分地由切割深度控制特征的至少一个表面限定。 在钻孔工具的制造期间形成的中间结构包括在临时位移构件上延伸的深度切割控制特征。
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5.发明申请METHODS OF FORMING AND REPAIRING CUTTING ELEMENT POCKETS IN EARTH-BORING TOOLS WITH DEPTH-OF-CUT CONTROL FEATURES, AND TOOLS AND STRUCTURES FORMED BY SUCH METHODS 有权在具有深度切割控制特征的地下工具中形成和修复切割元件的方法，以及通过这种方法形成的工具和结构公开(公告)号：US20100263937A1
公开(公告)日：2010-10-21
申请号：US12424248
申请日：2009-04-15
CPC分类号： E21B10/54 , B23P15/28 , E21B10/43 , E21B10/55 , E21B10/62 , Y10T29/49885 , Y10T29/49982
摘要： Methods of forming and repairing earth-boring tools include providing wear-resistant material over a temporary displacement member to form a cutting element pocket in a body and a depth-of-cut control feature using the wear-resistant material. In some embodiments, the wear-resistant material may comprise a particle-matrix composite material. For example, a hardfacing material may be built up over a temporary displacement member to form or repair a cutting element pocket and provide a depth-of-cut control feature. Earth-boring tools include a depth-of-cut control feature comprising a wear-resistant material. The depth-of-cut control feature is configured to limit a depth-of-cut of a cutting element secured within a cutting element pocket partially defined by at least one surface of the depth-of-cut control feature. Intermediate structures formed during fabrication of earth-boring tools include a depth-of-cut control feature extending over a temporary displacement member.
摘要翻译： 形成和修理钻孔工具的方法包括在临时移位构件上设置耐磨材料，以在主体中形成切割元件袋，并使用耐磨材料形成深度切割控制特征。 在一些实施例中，耐磨材料可以包括颗粒 - 基质复合材料。 例如，可以在临时位移构件上构建表面硬化材料以形成或修复切割元件凹部并提供切割深度控制特征。 钻孔工具包括具有耐磨材料的深度切割控制特征。 切割深度控制特征被配置为限制固定在切割元件袋内的切割元件的切割深度，其部分地由切割深度控制特征的至少一个表面限定。 在钻孔工具的制造期间形成的中间结构包括在临时位移构件上延伸的深度切割控制特征。
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6.发明授权Non-magnetic drill string member with non-magnetic hardfacing and method of making the same 有权具有非磁性硬化面的非磁性钻柱构件及其制造方法公开(公告)号：US09303305B2
公开(公告)日：2016-04-05
申请号：US13360363
申请日：2012-01-27
申请人： James L. Overstreet , Jimmy W. Eason , Travis Puzz
发明人： James L. Overstreet , Jimmy W. Eason , Travis Puzz
CPC分类号： C23C4/06 , B23K9/048 , B23K31/025 , C23C4/129 , C23C4/134 , C23C30/00 , E21B17/1085 , Y10T428/25 , Y10T428/31678
摘要： A method for applying a non-magnetic, abrasive, wear-resistant hardfacing material to a surface of a drill string member includes providing a non-magnetic drill string member formed of a non-magnetic material, the drill string member having an outer surface. It also includes providing a non-magnetic hardfacing precursor material comprising a plurality of non-magnetic, sintered carbide pellets and a non-magnetic matrix material; heating a portion of the non-magnetic hardfacing precursor material to a temperature above the melting point of the matrix material to melt the matrix material. It further includes applying the molten non-magnetic matrix material and the plurality of non-magnetic, sintered carbide pellets to the exterior surface of the drill string member; and solidifying the molten non-magnetic matrix material to form a layer of a non-magnetic hardfacing material having a plurality of non-magnetic, sintered carbide pellets dispersed in the hardfacing material.
摘要翻译： 一种将非磁性，耐磨损的耐磨表面材料施加到钻柱构件的表面的方法包括提供由非磁性材料形成的非磁性钻柱构件，所述钻柱构件具有外表面。 它还包括提供包含多个非磁性烧结碳化物颗粒和非磁性基质材料的非磁性表面硬化前体材料; 将非磁性表面硬化前体材料的一部分加热到高于基体材料的熔点的温度以熔化基体材料。 还包括将熔融非磁性基体材料和多个非磁性烧结碳化物颗粒施加到钻柱构件的外表面; 并固化熔融的非磁性基体材料以形成具有分散在表面硬化材料中的多个非磁性烧结碳化物粒子的非磁性表面硬化材料层。
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7.发明授权Methods of forming earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials 有权在铝或铝基合金基体材料中形成具有碳化硼颗粒的钻头体的钻孔旋转钻头的方法公开(公告)号：US08230762B2
公开(公告)日：2012-07-31
申请号：US13022308
申请日：2011-02-07
CPC分类号： E21B10/00 , E21B10/567
摘要： Methods of manufacturing rotary drill bits for drilling subterranean formations include forming a plurality of boron carbide particles into a body having a shape corresponding to at least a portion of a bit body of a rotary drill bit, infiltrating the plurality of boron carbide particles with a molten aluminum or aluminum-based material, and cooling the molten aluminum or aluminum-based material to form a solid matrix material surrounding the boron carbide particles. In additional methods, a green powder component is provided that includes a plurality of particles each comprising boron carbide and a plurality of particles each comprising aluminum or an aluminum-based alloy material. The green powder component is at least partially sintered to provide a bit body, and a shank is attached to the bit body.
摘要翻译： 制造用于钻探地下地层的旋转钻头的方法包括将多个碳化硼颗粒形成为具有与旋转钻头的钻头体的至少一部分相对应的形状的主体，将多个碳化硼颗粒浸入熔融 铝或铝基材料，并且冷却熔融的铝或铝基材料以形成围绕碳化硼颗粒的固体基质材料。 在另外的方法中，提供了一种绿色粉末组分，其包括多个颗粒，每个颗粒包含碳化硼和多个颗粒，每个颗粒包含铝或铝基合金材料。 绿色粉末成分至少部分地被烧结以提供钻头体，并且柄部附接到钻头体上。
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8.发明授权Carburized monotungsten and ditungsten carbide eutectic particles, materials and earth-boring tools including such particles, and methods of forming such particles, materials, and tools 有权渗碳的单钨和二次碳化钨共晶颗粒，包括这种颗粒的材料和钻孔工具以及形成这种颗粒，材料和工具的方法公开(公告)号：US08220566B2
公开(公告)日：2012-07-17
申请号：US12261730
申请日：2008-10-30
IPC分类号： E21B10/36
CPC分类号： C22C1/1005 , B22F2005/001 , B22F2998/00 , B22F2998/10 , B22F2999/00 , E21B10/00 , E21B10/46 , B22F3/26 , B22F7/06 , C22C29/08 , B22F3/02 , B22F3/10 , B22F2201/30 , B22F2207/07 , B22F2202/15
摘要： Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of at least partially carburized monotungsten carbide and ditungsten carbide eutectic particles dispersed throughout a matrix material. In some embodiments, the particles are at least substantially fully carburized monotungsten carbide and ditungsten carbide eutectic particles. In further embodiments, the particles are generally spherical or at least substantially spherical. Methods of forming such particles include exposing a plurality of monotungsten carbide and ditungsten carbide eutectic particles to a gas containing carbon. Methods of manufacturing such tools include providing a plurality of at least partially carburized monotungsten carbide and ditungsten carbide eutectic particles or at least substantially completely carburized monotungsten carbide and ditungsten carbide eutectic particles within a matrix material.
摘要翻译： 用于钻探地下地层的钻孔工具包括颗粒 - 基质复合材料，其包含分散在基体材料中的多个至少部分渗碳的单碳化钨和二碳化钨共晶颗粒。 在一些实施方案中，颗粒是至少基本上完全渗碳的单碳化钨和二碳化钨共晶颗粒。 在另外的实施方案中，颗粒通常为球形或至少基本上为球形。 形成这种颗粒的方法包括将多个单碳化钨和二碳化钨共晶颗粒暴露于含碳气体。 制造这种工具的方法包括在基体材料内提供多个至少部分渗碳的单碳化钨和二碳化钨共晶颗粒或至少基本上完全渗碳的单碳化钨和二碳化钨共晶颗粒。
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9.发明申请METHODS OF FORMING EARTH BORING ROTARY DRILL BITS INCLUDING BIT BODIES HAVING BORON CARBIDE PARTICLES IN ALUMINUM OR ALUMINUM BASED ALLOY MATRIX MATERIALS 有权形成接地钻头钻头的方法，包括在铝或铝基合金基体材料中具有硼碳化物的钻头体公开(公告)号：US20110142707A1
公开(公告)日：2011-06-16
申请号：US13022308
申请日：2011-02-07
CPC分类号： E21B10/00 , E21B10/567
摘要： Methods of manufacturing rotary drill bits for drilling subterranean formations include forming a plurality of boron carbide particles into a body having a shape corresponding to at least a portion of a bit body of a rotary drill bit, infiltrating a plurality of boron carbide particles with a molten aluminum or aluminum-based material, and cooling the molten aluminum or aluminum-based material to form a solid matrix material surrounding the boron carbide particles. In additional methods, a green powder component is provided that includes a plurality of particles each comprising boron carbide and a plurality of particles each comprising aluminum or an aluminum-based alloy material. The green powder component is at least partially sintered to provide a bit body, and a shank is attached to the bit body.
摘要翻译： 制造用于钻探地下地层的旋转钻头的方法包括将多个碳化硼颗粒形成为具有与旋转钻头的钻头体的至少一部分相对应的形状的主体，将多个碳化硼颗粒浸入熔融 铝或铝基材料，并且冷却熔融的铝或铝基材料以形成围绕碳化硼颗粒的固体基质材料。 在另外的方法中，提供了一种绿色粉末组分，其包括多个颗粒，每个颗粒包含碳化硼和多个颗粒，每个颗粒包括铝或铝基合金材料。 绿色粉末成分至少部分地被烧结以提供钻头体，并且柄部附接到钻头体上。
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10.发明申请METHODS FOR APPLYING ABRASIVE WEAR RESISTANT MATERIALS TO A SURFACE OF A DRILL BIT 审中-公开将磨损耐磨材料应用于钻头表面的方法公开(公告)号：US20110138695A1
公开(公告)日：2011-06-16
申请号：US13023882
申请日：2011-02-09
IPC分类号： C09K3/14
CPC分类号： E21B10/54 , B22F7/062 , B22F2005/001 , C22C29/08 , E21B10/46 , E21B10/573
摘要： Methods for applying an abrasive wear-resistant material to a surface of a drill bit include providing a drill bit having a bit body formed of a material comprising one of steel material, particle-matrix composite material and cemented matrix material, mixing a plurality of −40/+80 ASTM mesh dense sintered carbide pellets in a matrix material, heating the matrix material to a temperature above the melting point of the matrix material, applying the molten matrix material and at least some of the dense sintered carbide pellets to at least a portion of an exterior surface of the bit body; and solidifying the molten matrix material.
摘要翻译： 将磨料耐磨材料施加到钻头表面的方法包括提供钻头，该钻头具有由包括钢材，颗粒 - 基质复合材料和胶结基体材料之一的材料形成的钻头体， 将基质材料中的基质材料加热至高于基体材料熔点的温度，将熔融基体材料和至少一些致密的烧结碳化物球粒加到至少一个 钻头体的外表面的一部分; 并固化熔融基体材料。
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