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。

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。

公开(公告)号：US07211218B2

公开(公告)日：2007-05-01

申请号：US10235261

申请日：2002-09-05

申请人： Zhigang Fang ,  Anthony Griffo ,  Brian A. White ,  Stewart Middlemiss ,  Ron K. Eyre

发明人： Zhigang Fang ,  Anthony Griffo ,  Brian A. White ,  Stewart Middlemiss ,  Ron K. Eyre

IPC分类号： B22F3/12

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上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。

公开(公告)号：US20060266558A1

公开(公告)日：2006-11-30

申请号：US11140482

申请日：2005-05-26

申请人： Stewart Middlemiss ,  J. Belnap ,  Nephi Mourik ,  Thomas Oldham ,  Anthony Griffo

发明人： Stewart Middlemiss ,  J. Belnap ,  Nephi Mourik ,  Thomas Oldham ,  Anthony Griffo

IPC分类号： E21B10/36

CPC分类号： E21B10/567 ,  B22F7/062 ,  B22F2998/10 ,  C22C26/00 ,  E21B10/5735 ,  B22F3/14 ,  B22F3/10

摘要： Thermally stable ultra-hard compact constructions of this invention comprise an ultra-hard material body that includes a thermally stable region positioned adjacent a surface of the body. The thermally stable region is formed from consolidated materials that are thermally stable at temperatures greater than about 750° C. The thermally stable region can occupy a partial portion of or the entire ultra-hard material body. The ultra-hard material body can comprise a composite of separate ultra-hard material elements that each form different regions of the body, at least one of the regions being thermally stable. The ultra-hard material body is attached to a desired substrate, an intermediate material is interposed between the body and the substrate, and the intermediate material joins the substrate and body together by high pressure/high temperature process.

摘要翻译： 本发明的热稳定的超硬结构包括超硬材料体，其包括邻近本体表面定位的热稳定区域。 热稳定区域由在大于约750℃的温度下是热稳定的固结材料形成。热稳定区域可以占据超硬材料体的一部分或全部。 超硬材料体可以包括单独的超硬材料元件的复合材料，其各自形成身体的不同区域，至少一个区域是热稳定的。 超硬材料体附接到所需的基板上，中间材料插入在主体和基板之间，中间材料通过高压/高温工艺将基板和主体结合在一起。

公开(公告)号：US07128773B2

公开(公告)日：2006-10-31

申请号：US10836595

申请日：2004-04-30

申请人： Dah-Ben Liang ,  Greg Lockwood ,  Anthony Griffo

发明人： Dah-Ben Liang ,  Greg Lockwood ,  Anthony Griffo

IPC分类号： C22C29/02 ,  E21B10/36

CPC分类号： E21B10/567 ,  B22F3/156 ,  B22F2005/001 ,  B22F2998/00 ,  C04B35/5626 ,  C04B35/64 ,  C04B35/6455 ,  C04B2235/3839 ,  C04B2235/3847 ,  C04B2235/405 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/661 ,  C04B2235/96 ,  C22C29/06 ,  C23C30/005 ,  E21B10/46 ,  E21B10/56

摘要： A composite material includes a double cemented carbide and a coarse grain dopant, wherein the coarse grain is added in an amount sufficient to improve wear resistance of virgin double cemented carbide. The double cemented carbide may selected from the group of carbides consisting of W, Ti, Mo, Nb, V, Hf, Ta, and Cr carbides. The coarse grain dopant may also be at least one carbide selected from the group consisting of W, Ti, Mo, Nb, V, Hf, Ta, and Cr carbides. The coarse grain carbide may be between about 5% to about 90% by weight of the total carbide in the composite. Preferably, the coarse grain carbide is about 10% to about 50% by weight of the total carbide in the composite.

摘要翻译： 复合材料包括双重硬质合金和粗颗粒掺杂剂，其中粗粒以足以提高原始双重硬质合金的耐磨性的量加入。 双重硬质合金可以选自由W，Ti，Mo，Nb，V，Hf，Ta和Cr碳化物组成的碳化物组。 粗晶粒掺杂剂也可以是选自W，Ti，Mo，Nb，V，Hf，Ta和Cr碳化物中的至少一种碳化物。 粗晶粒碳化物可以占复合材料中总碳化物重量的约5％至约90％。 优选地，粗晶粒碳化物为复合材料中总碳化物的约10重量％至约50重量％。

公开(公告)号：US07036614B2

公开(公告)日：2006-05-02

申请号：US10396261

申请日：2003-03-25

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.

公开(公告)号：US20060081402A1

公开(公告)日：2006-04-20

申请号：US10967651

申请日：2004-10-18

申请人： Greg Lockwood ,  Thomas Oldham ,  Anthony Griffo ,  Madapusi Keshavan ,  David Conroy

发明人： Greg Lockwood ,  Thomas Oldham ,  Anthony Griffo ,  Madapusi Keshavan ,  David Conroy

IPC分类号： E21B10/36

CPC分类号： C22C26/00 ,  B22F2005/001 ,  C22C2026/006 ,  E21B10/46 ,  Y10T29/49885

摘要： An insert for a drill bit that includes diamond particles disposed in a matrix material, wherein the diamond particles have a contiguity of 15% or less is disclosed. A method of forming a diamond-impregnated cutting structure, that includes loading a plurality of substantially uniformly coated diamond particles into a mold cavity, pre-compacting the substantially uniformly coated diamond particles using a cold-press cycle, and heating the compacted, substantially uniformly coated diamond particles with a matrix material to form the diamond impregnated cutting structure is also disclosed.

摘要翻译： 一种用于钻头的插入件，其包括设置在基体材料中的金刚石颗粒，其中所述金刚石颗粒的接缝度为15％以下。 一种形成金刚石浸渍的切割结构的方法，其包括将多个基本上均匀涂覆的金刚石颗粒加载到模腔中，使用冷压循环对大致均匀涂覆的金刚石颗粒进行预压实，并加热压实的基本均匀的 还公开了具有基质材料以形成金刚石浸渍切割结构的涂覆金刚石颗粒。

公开(公告)号：US20060060391A1

公开(公告)日：2006-03-23

申请号：US10947075

申请日：2004-09-21

申请人： Ronald Eyre ,  Anthony Griffo ,  Thomas Oldham

发明人： Ronald Eyre ,  Anthony Griffo ,  Thomas Oldham

IPC分类号： E21B10/36

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.

公开(公告)号：US20050230156A1

公开(公告)日：2005-10-20

申请号：US11005675

申请日：2004-12-06

申请人： John Belnap ,  Stewart Middlemiss ,  Anthony Griffo ,  Thomas Oldham ,  Kumar Kembaiyan

发明人： John Belnap ,  Stewart Middlemiss ,  Anthony Griffo ,  Thomas Oldham ,  Kumar Kembaiyan

IPC分类号： B01J3/06 ,  B22F7/06 ,  B24D3/00 ,  B24D11/00 ,  C01B31/06 ,  C04B35/52 ,  C04B35/645 ,  C22C26/00 ,  E21B10/00 ,  E21B10/56 ,  E21B10/567 ,  E21B10/573

CPC分类号： E21B10/567 ,  B01J3/065 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/0685 ,  B22F7/06 ,  B22F2998/00 ,  B22F2998/10 ,  C01B32/28 ,  C04B35/52 ,  C04B35/645 ,  C04B2235/3275 ,  C04B2235/3826 ,  C04B2235/3891 ,  C04B2235/40 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/421 ,  C04B2235/427 ,  C04B2235/428 ,  C04B2235/80 ,  C22C1/058 ,  C22C26/00 ,  C22C2204/00 ,  E21B10/56 ,  E21B10/5735 ,  Y10T428/12056 ,  Y10T428/12063 ,  Y10T428/1209 ,  Y10T428/12146 ,  Y10T428/30 ,  B22F2207/01 ,  B22F1/0059 ,  B22F1/025 ,  B22F3/15

摘要： Thermally-stable polycrystalline diamond materials of this invention comprise a first phase including a plurality of bonded together diamond crystals, and a second phase including a reaction product formed between a binder/catalyst material and a material reactive with the binder/catalyst material. The reaction product is disposed within interstitial regions of the polycrystalline diamond material that exists between the bonded diamond crystals. The first and second phases are formed during a single high pressure/high temperature process condition. The reaction product has a coefficient of thermal expansion that is relatively closer to that of the bonded together diamond crystals than that of the binder/catalyst material, thereby providing an improved degree of thermal stability to the polycrystalline diamond material.

摘要翻译： 本发明的热稳定型多晶金刚石材料包括包含多个结合在一起的金刚石晶体的第一相和包含在粘合剂/催化剂材料与与粘合剂/催化剂材料反应的材料之间形成的反应产物的第二相。 反应产物设置在存在于结合的金刚石晶体之间的多晶金刚石材料的间隙区域内。 第一和第二相在单个高压/高温工艺条件下形成。 反应产物的热膨胀系数比粘合剂/催化剂材料的热膨胀系数更接近于结合在一起的金刚石晶体的热膨胀系数，从而为多晶金刚石材料提供了改善的热稳定性。

公开(公告)号：US06951578B1

公开(公告)日：2005-10-04

申请号：US09637092

申请日：2000-08-10

申请人： Daniel J. Belnap ,  Nathan R. Anderson ,  Zhigang Fang ,  Anthony Griffo ,  Brian A. White

发明人： Daniel J. Belnap ,  Nathan R. Anderson ,  Zhigang Fang ,  Anthony Griffo ,  Brian A. White

IPC分类号： B01J3/06 ,  C22C26/00 ,  E21B10/52 ,  B32B9/00

CPC分类号： E21B10/52 ,  B01J3/065 ,  B01J2203/062 ,  C22C26/00

摘要： PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. The PCD material comprises 15 percent by volume or less diamond grains sized 20 micrometers or less. The diamond grains are pressurized under elevated temperature conditions to form the desired PCD material. PCD materials of this invention can constitute the exclusive material phase of a PCD construction, or can form one or more material phase in a multi-phase material microstructure, wherein the multiple material phase can be arranged in an ordered/oriented or random fashion. PCD materials of this invention display improved properties of impact and fatigue resistance, and functional toughness, when used in complex wear environments, when compared to conventional PCs materials comprising intentionally added fine-sized diamond grains.

摘要翻译： 本发明的PCD材料包括与催化剂/粘合剂材料结合在一起的金刚石晶体。 通过将金刚石晶粒与催化剂/粘合剂材料组合作为预混合物或通过在烧结期间的渗透来制备PCD材料。 PCD材料包括15微摩尔或更小的15体积％或更少的金刚石颗粒。 金刚石晶粒在高温条件下被加压以形成所需的PCD材料。 本发明的PCD材料可以构成PCD结构的独特材料相，或者可以在多相材料微结构中形成一个或多个材料相，其中多个材料相可以以有序/定向或随机的方式布置。 当与常规的包含有意添加的精细尺寸的金刚石颗粒的材料相比时，本发明的PCD材料在复杂的磨损环境中使用时显示改善的冲击和抗疲劳性能以及功能性韧性。