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51. 发明申请

US20110315454A1 Anti-Tracking Feature for Rock Bits 审中-公开
标题翻译：岩石钻头的抗追踪功能
公开(公告)号：US20110315454A1
公开(公告)日：2011-12-29
申请号：US13227186
申请日：2011-09-07
申请人： Robert J. Buske , James L. Overstreet , Rudolf Carl Pessier
发明人： Robert J. Buske , James L. Overstreet , Rudolf Carl Pessier
IPC分类号： E21B10/16
CPC分类号： E21B10/16
摘要： The harmful effects of tracking are reduced for a drill bit having roller cones with at least one of the outermost rows of active teeth containing one or more teeth having a height that does not extend to the height of at least one of the outermost rows on another roller cone on the bit. The crest on this tooth may have a length in a circumferential direction that is wider than an overall width of the tooth in the outer to inner direction. The invention may be used on any cutter row, not just the outermost row. The design may be used on a different roller cone or row, or more than one cutter row. The anti-tracking feature may be located between the leading and trailing edges of the tooth on one or more roller cones.
摘要翻译：对于具有滚子锥体的钻头而言，减少了跟踪的有害影响，其中至少一个最外面的活动齿的行包含一个或多个齿，其高度不延伸到另一个的最外面行中的至少一个的高度辊锥在位上。该齿上的波峰可以具有在圆周方向上的长度，该长度比外齿向内方向上的齿的总宽度宽。本发明可以用于任何切割器行，而不仅仅是最外面的行。该设计可以用于不同的滚子圆锥体或排或多于一个的切割器排。抗跟踪特征可以位于一个或多个滚子锥体上的齿的前缘和后缘之间。

52. 发明授权

US08047309B2 Passive and active up-drill features on fixed cutter earth-boring tools and related systems and methods 有权
标题翻译：固定刀具钻孔工具的被动和主动上钻特点及相关系统和方法
公开(公告)号：US08047309B2
公开(公告)日：2011-11-01
申请号：US12133988
申请日：2008-06-05
申请人： James L. Overstreet , Robert J. Buske , Kenneth E. Gilmore , John H. Stevens
发明人： James L. Overstreet , Robert J. Buske , Kenneth E. Gilmore , John H. Stevens
IPC分类号： E21B10/43
CPC分类号： E21B7/28 , E21B10/003 , E21B10/43 , E21B17/1092
摘要： Earth-boring tools include at least one up-drill feature disposed on a transition surface so as to be passive during down drilling and active during up drilling and/or back reaming operations. Systems for down drilling and up drilling with drill bits comprising one or more up-drill features are also disclosed. Furthermore, methods for forming a borehole with an earth-boring tool including such up-drill features and for forming an earth-boring tool comprising such up-drill features are also disclosed.
摘要翻译：钻孔工具包括设置在过渡表面上的至少一个上钻特征，以便在下钻期间是被动的，并且在上钻和/或后扩孔操作期间是活动的。还公开了用于具有包括一个或多个向上钻孔特征的钻头的下钻和上钻的系统。此外，还公开了一种用包括这种上钻特征的钻孔工具形成钻孔的方法，并且还公开了用于形成包括这种上钻特征的钻孔工具的方法。

53. 发明授权

US07997359B2 Abrasive wear-resistant hardfacing materials, drill bits and drilling tools including abrasive wear-resistant hardfacing materials 有权
标题翻译：磨料耐磨硬化材料，钻头和钻具，包括磨料耐磨硬化材料
公开(公告)号：US07997359B2
公开(公告)日：2011-08-16
申请号：US11862719
申请日：2007-09-27
申请人： Jimmy W. Eason , James L. Overstreet
发明人： Jimmy W. Eason , James L. Overstreet
IPC分类号： E21B10/36
CPC分类号： E21B10/54 , B22F7/062 , B22F2005/001 , C22C29/08 , E21B10/46 , E21B10/573
摘要： An abrasive wear-resistant material includes a matrix material and a plurality of −40/+80 ASTM mesh dense sintered carbide pellets. A rotary drill bit having an exterior surface and an abrasive wear-resistant material disposed on at least a portion of the exterior surface of the bit body is provided. Methods for applying an abrasive wear-resistant material to a surface of a drill bit are also disclosed.
摘要翻译：磨料耐磨材料包括基体材料和多个-40 / + 80 ASTM网状致密烧结碳化物颗粒。提供了具有外表面的旋转钻头和设置在钻头体的外表面的至少一部分上的磨料耐磨材料。还公开了将磨料耐磨材料施加到钻头表面的方法。

54. 发明申请

US20110168452A1 Tungsten Carbide Bit with Hardfaced Nose Area 审中-公开
标题翻译：硬质合金刀头与硬面鼻子区域
公开(公告)号：US20110168452A1
公开(公告)日：2011-07-14
申请号：US13030878
申请日：2011-02-18
申请人： Robert J. Pharis , James L. Overstreet , Clark R. Turner , Floyd C. Felderhoff , Kenneth E. Gilmore , Caleb A. Rickabaugh
发明人： Robert J. Pharis , James L. Overstreet , Clark R. Turner , Floyd C. Felderhoff , Kenneth E. Gilmore , Caleb A. Rickabaugh
IPC分类号： E21B10/00
CPC分类号： E21B10/16 , E21B10/50
摘要： An earth-boring bit has rotatable cones with rows of carbide elements installed thereon. A nose is symmetrically arranged on a cone axis of one of the cones. The nose has a central core that protrudes outward. A base joins supporting metal of the cone. A free end is opposite the base. Teeth are formed on the cone between the base and the free end, the teeth extending radially outward. A hard facing layer is located on the teeth. Intermediate hardfacings extend outward from the core between each of the teeth. The intermediate hardfacings may be lugs and preferably extend the same distance from the core as the teeth.
摘要翻译：钻头具有安装在其上的碳化物元素排的可旋转锥体。鼻子对称地布置在其中一个锥体的锥体轴线上。鼻子有一个向外突出的中心核心。底座连接支撑锥体的金属。自由端在基地对面。牙齿形成在基部和自由端之间的锥体上，齿沿径向向外延伸。硬面层位于牙齿上。中间硬化从每个齿之间的芯向外延伸。中间硬化剂可以是凸耳，并且优选地与所述牙齿从芯部延伸相同的距离。

55. 发明申请

US20110036639A1 ROLLER CONE DISK WITH SHAPED COMPACTS 有权
标题翻译：滚筒锥体与形状的COMPACTS
公开(公告)号：US20110036639A1
公开(公告)日：2011-02-17
申请号：US12541048
申请日：2009-08-13
申请人： Robert J. Buske , James L. Overstreet , Thomas M. Stefanik , Shyam Anandampillai , Robert D. Bradshaw
发明人： Robert J. Buske , James L. Overstreet , Thomas M. Stefanik , Shyam Anandampillai , Robert D. Bradshaw
IPC分类号： E21B10/52 , E21B10/08 , E21B10/50 , B21K5/02
CPC分类号： E21B10/06 , E21B10/12
摘要： An earth boring drill bit that includes a cutting cone with a cutting disk. Compacts are inserted within the disk having a chisel shaped end set flush with the cutting disk periphery. The compact crests and cutting disk periphery form a generally seamless cutting surface. The cutting cone can further include cutting teeth thereon also having flush mounted compacts. The compacts can be made from a material such as cemented carbide, hardfacing, tungsten, tungsten alloys, tungsten carbide and the cutter made from steel.
摘要翻译：一种钻孔钻头，包括带切割盘的切割锥体。紧凑件插入盘内，其具有与切割盘周边齐平的凿形端部。紧凑的波峰和切割圆盘周边形成通常无缝的切割表面。切割锥体还可以包括在其上的切割齿也具有齐平安装的压块。压块可以由硬质合金，硬质合金，钨，钨合金，碳化钨等材料制成，并由钢制成。

56. 发明申请

US20100263937A1 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
标题翻译：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
申请人： James L. Overstreet , Kenneth E. Gilmore , Travis E. Puzz
发明人： James L. Overstreet , Kenneth E. Gilmore , Travis E. Puzz
IPC分类号： E21B10/43 , E21B10/42 , E21B10/55 , B21K5/04
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。

57. 发明授权

US07807099B2 Method for forming earth-boring tools comprising silicon carbide composite materials 有权
标题翻译：用于形成包含碳化硅复合材料的钻孔工具的方法
公开(公告)号：US07807099B2
公开(公告)日：2010-10-05
申请号：US11965018
申请日：2007-12-27
申请人： Heeman Choe , John H. Stevens , James C. Westhoff , Jimmy W. Eason , James L. Overstreet
发明人： Heeman Choe , John H. Stevens , James C. Westhoff , Jimmy W. Eason , James L. Overstreet
IPC分类号： B22F3/12
CPC分类号： E21B10/46 , B22D23/00 , B22F3/162 , B22F2005/001 , B22F2999/00 , C22C1/1036 , C22C29/065 , C22C32/0063 , C22C2001/1047 , B22F3/1021 , C22C1/1094
摘要： Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of silicon carbide particles dispersed throughout a matrix material, such as, for example, an aluminum or aluminum-based alloy. In some embodiments, the silicon carbide particles comprise an ABC—SiC material. Methods of manufacturing such tools include providing a plurality of silicon carbide particles within a matrix material. Optionally, the silicon carbide particles may comprise ABC—SiC material, and the ABC—SiC material may be toughened to increase a fracture toughness exhibited by the ABC—SiC material. In some methods, at least one of an infiltration process and a powder compaction and consolidation process may be employed.
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，其包含分散在整个基质材料（例如铝或铝基合金）中的多个碳化硅颗粒。在一些实施例中，碳化硅颗粒包括ABC-SiC材料。制造这种工具的方法包括在基质材料内提供多个碳化硅颗粒。任选地，碳化硅颗粒可以包括ABC-SiC材料，并且可以增强ABC-SiC材料以增加由ABC-SiC材料显示的断裂韧性。在一些方法中，可以采用渗透方法和粉末压实和固结方法中的至少一种。

58. 发明申请

US20100108399A1 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
标题翻译：含碳单体和碳酸锂的保护颗粒，包括这种颗粒的材料和接地工具，以及形成这种颗粒，材料和工具的方法
公开(公告)号：US20100108399A1
公开(公告)日：2010-05-06
申请号：US12261730
申请日：2008-10-30
申请人： Jimmy W. Eason , John H. Stevens , James L. Overstreet
发明人： Jimmy W. Eason , John H. Stevens , James L. Overstreet
IPC分类号： C22C29/08 , E21B10/46
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价碳化物共晶颗粒。

59. 发明授权

US07703555B2 Drilling tools having hardfacing with nickel-based matrix materials and hard particles 有权
标题翻译：钻具与镍基基质材料和硬粒子具有耐磨性
公开(公告)号：US07703555B2
公开(公告)日：2010-04-27
申请号：US11513677
申请日：2006-08-30
申请人： James L. Overstreet
发明人： James L. Overstreet
IPC分类号： E21B10/36 , C22C29/08
CPC分类号： E21B10/46 , B22F7/062 , B22F2005/001 , C22C29/08 , E21B10/573
摘要： An abrasive wear-resistant material includes a matrix and sintered and cast tungsten carbide granules. A device for use in drilling subterranean formations includes a first structure secured to a second structure with a bonding material. An abrasive wear-resistant material covers the bonding material. The first structure may include a drill bit body and the second structure may include a cutting element. A method for applying an abrasive wear-resistant material to a drill bit includes providing a bit, mixing sintered and cast tungsten carbide granules in a matrix material to provide a pre-application material, heating the pre-application material to melt the matrix material, applying the pre-application material to the bit, and solidifying the material. A method for securing a cutting element to a bit body includes providing an abrasive wear-resistant material to a surface of a drill bit that covers a brazing alloy disposed between the cutting element and the bit body.
摘要翻译：磨料耐磨材料包括基体和烧结和铸造的碳化钨颗粒。用于钻探地下地层的装置包括用粘合材料固定到第二结构的第一结构。磨料耐磨材料覆盖接合材料。第一结构可以包括钻头体，并且第二结构可以包括切割元件。将磨料耐磨材料施加到钻头的方法包括提供钻头，将基体材料中的烧结和铸造碳化钨颗粒混合以提供预施加材料，加热预施加材料以熔化基质材料，将预施加材料施加到钻头上，并固化材料。用于将切割元件固定到钻头体的方法包括向钻头的表面提供磨料耐磨材料，所述钻头覆盖设置在切割元件和钻头体之间的钎焊合金。

60. 发明申请

US20100078227A1 Bar Trimmers On Disk Bit 有权
标题翻译：磁盘上的条形微调器
公开(公告)号：US20100078227A1
公开(公告)日：2010-04-01
申请号：US12419839
申请日：2009-04-07
申请人： Robert J. Buske , James L. Overstreet
发明人： Robert J. Buske , James L. Overstreet
IPC分类号： E21B10/08
CPC分类号： E21B10/50
摘要： An earth boring drill bit comprising a milled cutter having rows of hardfacing guides on the cutter. Hardfacing is applied between adjacent hardfacing guides to form a hardfacing web that serves as a cutting element. The hardfacing web defines an interface between the hardfacing web and the hardfacing guide. The hardfacing web may extend past the crest of the hardfacing guides or end along the hardfacing guides flanks. Projecting hardfacing is provided on the interface to form trimmers.
摘要翻译：一种钻孔钻头，其包括铣刀，所述铣刀在切割器上具有一排表面硬化导向件。在相邻的表面硬化引导件之间施加表面硬化以形成用作切割元件的硬化纤维网。强硬的网页定义了表面铺展网页和硬面指南之间的界面。表面硬质纤维网可以延伸超过表面硬化导向件的顶部或沿着硬表面导向件侧面端部。在界面上提供了投射硬面，以形成微调。

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