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公开(公告)号：US07757788B2
公开(公告)日：2010-07-20
申请号：US12211762
申请日：2008-09-16
CPC分类号： B22F1/0003 , B22F2998/10 , C22C26/00 , E21B10/56 , B22F3/12
摘要： Ultrahard composite constructions comprise a plurality of first phases dispersed within a matrix second phase, wherein each can comprise an ultrahard material including PCD, PcBN, and mixtures thereof. The constructions are formed from a plurality of granules that are combined and sintered at HP/HT conditions. The granules include a core surrounded by a shell and both are formed from an ultrahard material or precursor comprising an ultrahard constituent for forming the ultrahard material. When sintered, the cores form the plurality of first phases, and the shells form at least a portion of the second phase. The ultrahard material used to form the granule core may have an amount of ultrahard constituent different from that used to form the granule shell to provide desired different properties. The ultrahard constituent in the granule core and shell can have approximately the same particle size.
摘要翻译： 超硬复合结构包括分散在基质第二相中的多个第一相，其中每个第一相可包含超硬材料，其包括PCD，PcBN及其混合物。 这些结构由在HP / HT条件下组合和烧结的多个颗粒形成。 颗粒包括由壳包围的芯，并且都由超硬材料或前体形成，所述超硬材料或前体包含用于形成超硬材料的超硬组分。 当烧结时，芯形成多个第一相，并且壳形成第二相的至少一部分。 用于形成颗粒核的超硬材料可以具有与用于形成颗粒壳的用量相差的超硬组分，以提供所需的不同性质。 颗粒核和壳中的超硬组分可以具有大致相同的粒度。
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公开(公告)号：US07754333B2
公开(公告)日：2010-07-13
申请号：US10947075
申请日：2004-09-21
申请人： Ronald K. Eyre , Anthony Griffo , Thomas W. Oldham
发明人： Ronald K. Eyre , Anthony Griffo , Thomas W. Oldham
IPC分类号： B32B9/00
CPC分类号： E21B10/567 , B22F2003/244 , B22F2005/001 , B22F2998/00 , C22C26/00 , Y10T407/27 , Y10T428/252 , Y10T428/265 , Y10T428/30 , B22F7/06
摘要： Thermally stable diamond constructions comprise a diamond body having a plurality of bonded diamond crystals and a plurality of interstitial regions disposed among the crystals. A metallic substrate is attached to the diamond body. A working surface is positioned along an outside portion of the diamond body, and the diamond body comprises a first region that is substantially free of a catalyst material, and a second region that includes the catalyst material. The diamond body first region extends from the working surface to depth of at least about 0.02 mm to a depth of less than about 0.09 mm. The diamond body includes diamond crystals having an average diamond grain size of greater than about 0.02 mm, and comprises at least 85 percent by volume diamond based on the total volume of the diamond body.
摘要翻译： 热稳定的金刚石构造包括具有多个结合的金刚石晶体和设置在晶体之间的多个间隙区域的金刚石体。 金属基底附着在金刚石体上。 工作表面沿着金刚石体的外部部分定位，并且金刚石体包括基本上不含催化剂材料的第一区域和包括催化剂材料的第二区域。 金刚石体第一区域从工作表面延伸至至少约0.02mm的深度至小于约0.09mm的深度。 金刚石体包括具有大于约0.02mm的平均金刚石晶粒尺寸的金刚石晶体，并且基于金刚石体的总体积包含至少85体积％的金刚石。
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63.发明授权公开(公告)号：US07666244B2
公开(公告)日：2010-02-23
申请号：US11175120
申请日：2005-07-05
CPC分类号： C23C30/005 , B23K35/0266 , B23K35/327 , E21B10/50
摘要： A hardfacing composition for a drill bit, including a carbide phase comprising from about 50% to about 75% by weight of the hardfacing composition of a combination of 16 to 40 mesh cemented tungsten carbide and 80 to 200 mesh super dense tungsten carbide cobalt particles, wherein about 5% to about 50% by weight of the carbide phase comprises the super dense tungsten carbide cobalt particles, and a binder alloy including about 25% to about 50% by weight of the hardfacing composition.
摘要翻译： 用于钻头的表面硬化组合物，包括碳化物相，其包含约40重量％至约75重量％的硬质合金组合物，其为16至40目的硬质合金碳化钨和80至200目的超致密碳化钨钴颗粒的组合， 其中约5重量％至约50重量％的碳化物相包含超致密碳化钨钴颗粒和包含占该组合物的约25重量％至约50重量％的粘合剂合金。
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公开(公告)号：US07647992B2
公开(公告)日：2010-01-19
申请号：US11743108
申请日：2007-05-01
CPC分类号： E21B10/567 , B22F2005/001 , B22F2998/10 , C09K3/1418 , C09K3/1436 , C22C26/00 , C22C2026/005 , E21B10/52 , E21B10/56 , B22F1/0096 , B22F1/025 , B22F1/0003 , B22F3/15 , B22F3/10
摘要： Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof, that are distributed within a substantially continuous second matrix region that substantially surrounds the granules and that is formed from a cermet material. In an example embodiment, the granules are polycrystalline diamond and the cermet material is cemented tungsten carbide. PCD carbide composites of this invention display improved properties of fracture toughness and chipping resistance, without substantially compromising wear resistance, when compared to conventional pure PCD materials.
摘要翻译： 本发明的多晶金刚石（PCD）碳化物复合材料具有包含由PCD，多晶立方氮化硼或其混合物形成的多个颗粒的微结构，其分布在基本上包围颗粒的基本连续的第二基质区域中，并形成 从金属陶瓷材料。 在一个示例性实施例中，颗粒是多晶金刚石，金属陶瓷材料是硬质合金。 与常规纯PCD材料相比，本发明的PCD碳化物复合材料显示出改进的断裂韧性和耐崩裂性能，而不会显着降低耐磨性。
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公开(公告)号：US20090071726A1
公开(公告)日：2009-03-19
申请号：US12211762
申请日：2008-09-16
IPC分类号： E21B10/02
CPC分类号： B22F1/0003 , B22F2998/10 , C22C26/00 , E21B10/56 , B22F3/12
摘要： Ultrahard composite constructions comprise a plurality of first phases dispersed within a matrix second phase, wherein each can comprise an ultrahard material including PCD, PcBN, and mixtures thereof. The constructions are formed from a plurality of granules that are combined and sintered at HP/HT conditions. The granules include a core surrounded by a shell and both are formed from an ultrahard material or precursor comprising an ultrahard constituent for forming the ultrahard material. When sintered, the cores form the plurality of first phases, and the shells form at least a portion of the second phase. The ultrahard material used to form the granule core may have an amount of ultrahard constituent different from that used to form the granule shell to provide desired different properties. The ultrahard constituent in the granule core and shell can have approximately the same particle size.
摘要翻译： 超硬复合结构包括分散在基质第二相中的多个第一相，其中每个第一相可以包含包含PCD，PcBN及其混合物的超硬材料。 这些结构由在HP / HT条件下组合和烧结的多个颗粒形成。 颗粒包括由壳包围的芯，并且都由超硬材料或前体形成，所述超硬材料或前体包含用于形成超硬材料的超硬组分。 当烧结时，芯形成多个第一相，并且壳形成第二相的至少一部分。 用于形成颗粒核的超硬材料可以具有与用于形成颗粒壳的用量相差的超硬组分，以提供所需的不同性质。 颗粒核和壳中的超硬组分可以具有大致相同的粒度。
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66.发明申请USE OF NANOSIZED PARTICULATES AND FIBERS IN ELASTOMER SEALS FOR IMPROVED PERFORMANCE METRICS FOR ROLLER CONE BITS 审中-公开在弹性体密封件中使用纳米颗粒和纤维，以改善滚子锥度的性能指标公开(公告)号：US20090038858A1
公开(公告)日：2009-02-12
申请号：US12185580
申请日：2008-08-04
IPC分类号： E21B10/25
CPC分类号： E21B10/25
摘要： A bit for drilling subterranean formations that includes a bit body including a bearing surface; a cutting structure mounted on the bit body, and including a bearing surface, and an annular seal for retaining a grease between the bearing surfaces, the annular seal comprising a flexible and resilient seal body formed from an elastomer composition, wherein the elastomer composition comprises an elastomer material, a curing agent, and 10% or less by volume of a nanomaterial additive selected from one of nanotubes and clustered nanodiamonds is disclosed.
摘要翻译： 用于钻探地下地层的一点，其包括具有支承表面的钻头体; 安装在所述钻头体上并包括支承表面的切割结构以及用于在所述支承表面之间保持润滑脂的环形密封件，所述环形密封件包括由弹性体组合物形成的柔性和弹性密封体，其中所述弹性体组合物包括 公开了弹性体材料，固化剂和10体积％以上的选自纳米管和簇状纳米金刚石之一的纳米材料添加剂。
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公开(公告)号：US20080164070A1
公开(公告)日：2008-07-10
申请号：US11650860
申请日：2007-01-08
IPC分类号： E21B10/46
摘要： A drill bit that includes a matrix bit body having a reinforcing overlay thereon and having at least one blade thereon; at least one cutter pocket disposed on the at least one blade; at least one cutter disposed in the at least one cutter pocket; and a braze material disposed between the at least one cutter and the at least one cutter pocket, wherein the reinforcing overlay comprises carbide particles and at least one binder and has a melting point greater than a melting point of the braze material is disclosed.
摘要翻译： 一种钻头，其包括其上具有加强覆盖物并且在其上具有至少一个刀片的矩阵钻头体; 设置在所述至少一个叶片上的至少一个切割器袋; 至少一个切割器设置在所述至少一个切割器凹槽中; 以及布置在所述至少一个切割器和所述至少一个切割器袋之间的钎焊材料，其中所述增强覆盖物包含碳化物颗粒和至少一个粘合剂并且具有大于所述钎焊材料的熔点的熔点。
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公开(公告)号：US07387178B2
公开(公告)日：2008-06-17
申请号：US11733731
申请日：2007-04-10
申请人： James L. Neville , James L. Larsen , Steven W. Peterson , Manikiran Bandi , Alan Lockstedt , Peter T. Cariveau , Alysia C. White , Anthony Griffo , Michael Siracki
发明人： James L. Neville , James L. Larsen , Steven W. Peterson , Manikiran Bandi , Alan Lockstedt , Peter T. Cariveau , Alysia C. White , Anthony Griffo , Michael Siracki
IPC分类号： E21B10/22
CPC分类号： E21B10/25 , Y10S277/926 , Y10S277/928
摘要： Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit. Surface features, on the seal or the drill bit, can be provided to offset the relief port opening from the rock bit so that it is not blocked off. The seal can include a valve mechanism to provide a further degree of control over fluid passage through the relief port.
摘要翻译： 本发明的自卸式密封件包括具有第一密封表面和用于与相应的钻头密封表面接触的第二密封表面的弹性体密封体。 密封件包括一对外表面，每个外表面沿密封体在第一和第二密封表面之间延伸。 密封件包括一个或多个卸载口，其设置成穿过密封体并具有通过每个密封体外表面的开口。 泄压口可以被特别地构造，例如具有恒定或可变尺寸的不同直径部分，以在密封件被装载在钻头内时通过密封体提供对压力平衡的程度的控制。 密封件可以包括设置在泄放口内的元件，例如固体，管状或多孔的，以便当密封件装载在钻头内时，通过密封件提供对压力平衡的进一步期望程度的控制。 可以提供在密封件或钻头上的表面特征以将卸载口开口偏离岩石钻头，使得其不被堵塞。 密封件可以包括阀机构，以进一步控制通过排放口的流体通道。
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公开(公告)号：US07258177B2
公开(公告)日：2007-08-21
申请号：US11415657
申请日：2006-05-02
申请人： Dah-Ben Liang , Anthony Griffo
发明人： Dah-Ben Liang , Anthony Griffo
IPC分类号： E21B10/36
CPC分类号： E21B10/52 , B22F2005/001 , C22C29/08 , E21B10/08 , E21B10/16 , E21B17/1092
摘要： An insert for a rock bit that includes tungsten carbide particles, and a cobalt binder disposed around the particles, wherein a grain size of the tungsten carbide particles and a content of the cobalt binder are selected to provide a fracture toughness of at least about 18 ksi (in)0.5, a wear number of at least about 2, and a hardness of 85 to 87 Ra is disclosed.
摘要翻译： 一种用于包含碳化钨颗粒的岩石钻头和围绕颗粒设置的钴粘合剂的镶嵌件，其中选择碳化钨颗粒的粒度和钴粘合剂的含量以提供至少约18ksi的断裂韧性 （in）0.5，磨损数至少约2，硬度为85至87 Ra。
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公开(公告)号：US20070181347A1
公开(公告)日：2007-08-09
申请号：US11733731
申请日：2007-04-10
申请人： James Neville , James Larsen , Steven Peterson , Manikiran Bandi , Alan Lockstedt , Peter Cariveau , Alysia White , Anthony Griffo , Michael Siracki
发明人： James Neville , James Larsen , Steven Peterson , Manikiran Bandi , Alan Lockstedt , Peter Cariveau , Alysia White , Anthony Griffo , Michael Siracki
IPC分类号： E21B10/22
CPC分类号： E21B10/25 , Y10S277/926 , Y10S277/928
摘要： Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal body between the first and second sealing surfaces. The seal includes one or more relief ports that are disposed through the seal body and that have openings through each of the seal body external surfaces. The relief port can be specially configured, e.g., have different diameter sections of constant or variable dimensions, to provide a degree of control over pressure equalization through the seal body when the seal is loaded within the drill bit. The seal may include an element, e.g., solid, tubular, or porous, disposed within the relief port to provide a further desired degree of control over pressure equalization through the seal when the seal is loaded within the drill bit. Surface features, on the seal or the drill bit, can be provided to offset the relief port opening from the rock bit so that it is not blocked off. The seal can include a valve mechanism to provide a further degree of control over fluid passage through the relief port.
摘要翻译： 本发明的自卸式密封件包括具有第一密封表面和用于与相应的钻头密封表面接触的第二密封表面的弹性体密封体。 密封件包括一对外表面，每个外表面沿密封体在第一和第二密封表面之间延伸。 密封件包括一个或多个卸载口，其设置成穿过密封体并具有通过每个密封体外表面的开口。 泄压口可以被特别地构造，例如具有恒定或可变尺寸的不同直径部分，以在密封件被装载在钻头内时通过密封体提供对压力平衡的程度的控制。 密封件可以包括设置在泄放口内的元件，例如固体，管状或多孔的，以便当密封件装载在钻头内时，通过密封件提供对压力平衡的进一步期望程度的控制。 可以提供在密封件或钻头上的表面特征以将卸载口开口偏离岩石钻头，使得其不被堵塞。 密封件可以包括阀机构，以进一步控制通过排放口的流体通道。
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