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110 条记录 (耗时 0.032 秒)

    BONDING OF CUTTERS IN DIAMOND DRILL BITS
    91.
    发明申请
    BONDING OF CUTTERS IN DIAMOND DRILL BITS 有权
    切割刀在钻石钻头中的连接

    公开(公告)号：US20100101868A1

    公开(公告)日：2010-04-29

    申请号：US12582212

    申请日：2009-10-20

    申请人： Saul N. Izaguirre ,  Thomas W. Oldham ,  Kumar T. Kembaiyan ,  Gary R. Chunn ,  Anthony Griffo ,  Robert Denton ,  Brian White

    发明人： Saul N. Izaguirre ,  Thomas W. Oldham ,  Kumar T. Kembaiyan ,  Gary R. Chunn ,  Anthony Griffo ,  Robert Denton ,  Brian White

    IPC分类号： E21B10/55 ,  E21B10/00 ,  E21B10/42

    CPC分类号： E21B10/567 ,  B22F7/06 ,  B22F7/062 ,  B22F2005/001

    摘要： A bit body formed of a mixture of matrix material and superabrasive powder and including pockets lined with superabrasive-free matrix material, and a method for forming the same, are provided. The pockets are shaped to receive cutting elements therein. The superabrasive-free matrix material enhances braze strength when a cutting element is brazed to surfaces of the pocket. The method for forming the drill bit body includes providing a mold and displacements. The displacements are coated with a mixture of superabrasive free matrix-material and an organic binder. The mold is packed with a mixture of matrix material and superabrasive powder and the arrangement heated to form a solid drill bit body. When the solid bit body is removed from the mold, pockets are formed by the displacements in the bit body and are lined with the layer of superabrasive-free matrix material. The superabrasive material may be diamond, polycrystalline cubic boron nitride, SiC or TiB2 in exemplary embodiments.

    摘要翻译： 由基体材料和超级磨料粉末的混合物形成的一个体，并且包括衬有超无磨料基质材料的口袋及其形成方法。 口袋被成形为在其中容纳切割元件。 当将切割元件钎焊到袋的表面时，超无磨料基质材料增强了钎焊强度。 用于形成钻头体的方法包括提供模具和位移。 位移用超磨料自由基质材料和有机粘合剂的混合物涂覆。 模具中填充有基体材料和超级磨料粉末的混合物，并将该装置加热形成固体钻头体。 当固体钻头体从模具中取出时，通过钻头体中的位移形成凹坑，并且衬有超级无磨料基体材料层。 在示例性实施例中，超研磨材料可以是金刚石，多晶立方氮化硼，SiC或TiB 2。

    Bonding of cutters in drill bits
    92.
    发明授权
    Bonding of cutters in drill bits 失效
    钻头切割机的接合

    公开(公告)号：US07625521B2

    公开(公告)日：2009-12-01

    申请号：US10455217

    申请日：2003-06-05

    申请人： Saul N. Izaguirre ,  Thomas W. Oldham ,  Kumar T. Kembaiyan ,  Gary R. Chunn ,  Anthony Griffo ,  Robert Denton ,  Brian White

    发明人： Saul N. Izaguirre ,  Thomas W. Oldham ,  Kumar T. Kembaiyan ,  Gary R. Chunn ,  Anthony Griffo ,  Robert Denton ,  Brian White

    IPC分类号： C22C32/00 ,  B21K5/02 ,  B21K5/10

    CPC分类号： E21B10/567 ,  B22F7/06 ,  B22F7/062 ,  B22F2005/001

    摘要： A bit body formed of a mixture of matrix material and superabrasive powder and including pockets lined with superabrasive-free matrix material, and a method for forming the same, are provided. The pockets are shaped to receive cutting elements therein. The superabrasive-free matrix material enhances braze strength when a cutting element is brazed to surfaces of the pocket. The method for forming the drill bit body includes providing a mold and displacements. The displacements are coated with a mixture of superabrasive free matrix-material and an organic binder. The mold is packed with a mixture of matrix material and superabrasive powder and the arrangement heated to form a solid drill bit body. When the solid bit body is removed from the mold, pockets are formed by the displacements in the bit body and are lined with the layer of superabrasive-free matrix material. The superabrasive material may be diamond, polycrystalline cubic boron nitride, SiC or TiB2 in exemplary embodiments.

    摘要翻译： 由基体材料和超级磨料粉末的混合物形成的一个体，并且包括衬有超无磨料基质材料的口袋及其形成方法。 口袋被成形为在其中容纳切割元件。 当将切割元件钎焊到袋的表面时，超无磨料基质材料增强了钎焊强度。 用于形成钻头体的方法包括提供模具和位移。 位移用超磨料自由基质材料和有机粘合剂的混合物涂覆。 模具中填充有基体材料和超级磨料粉末的混合物，并将该装置加热形成固体钻头体。 当固体钻头体从模具中取出时，通过钻头体中的位移形成凹坑，并且衬有超级无磨料基体材料层。 在示例性实施例中，超研磨材料可以是金刚石，多晶立方氮化硼，SiC或TiB 2。

    Roller cone bits with wear and fracture resistant surface
    93.
    发明授权
    Roller cone bits with wear and fracture resistant surface 失效
    滚轮锥头具有耐磨损和抗断裂的表面

    公开(公告)号：US07543661B2

    公开(公告)日：2009-06-09

    申请号：US11440233

    申请日：2006-05-23

    申请人： Anthony Griffo ,  Gregory Thomas Lockwood ,  Mohammed Boudrare ,  Jiaqing Yu

    发明人： Anthony Griffo ,  Gregory Thomas Lockwood ,  Mohammed Boudrare ,  Jiaqing Yu

    IPC分类号： E21B10/50

    CPC分类号： B22F1/0003 ,  B22F7/06 ,  B22F2005/001 ,  B22F2999/00 ,  C22C32/00 ,  E21B10/08 ,  E21B10/50 ,  B22F3/22

    摘要： Roller cone bits of this invention include a steel bit body having at least one leg extending therefrom. A steel cone is rotatably disposed on the leg. The steel cone includes a plurality of steel cutting elements that each project outwardly a distance therefrom. At least one of the cutting elements comprises a steel base portion that is integral with the cone and that projects a distance therefrom. A cutting element end portion is attached to the base portion and extends therefrom to form a tip of the cutting element. The base and end portions are permanently attached together when the cone and base are in a preexisting rigid state. The cutting element end portion is formed from a wear resistant material having a material microstructure comprising a first phase of grains selected from the group of carbides, borides, nitrides, and carbonitrides of W, Ti, Mo, Nb, V, Hf, Ta, and Cr refractory metals; and a second phase of a binder material selected from the group consisting of Co, Ni, Fe, and alloys thereof.

    摘要翻译： 本发明的滚子钻头包括具有从其延伸的至少一个腿的钢钻头体。 钢锥可旋转地设置在腿上。 钢锥体包括多个钢切割元件，每个钢切割元件从其向外突出一定距离。 切割元件中的至少一个包括与锥体成一体并从其突出一定距离的钢基部。 切割元件端部附接到基部并从其延伸以形成切割元件的尖端。 当锥体和底座处于预先存在的刚性状态时，基部和端部永久地附接在一起。 切割元件端部由具有材料微观结构的耐磨材料形成，所述材料微观结构包括选自W，Ti，Mo，Nb，V，Hf，Ta等的碳化物，硼化物，氮化物和碳氮化物的晶粒的第一相， 和Cr难熔金属; 以及选自由Co，Ni，Fe及其合金组成的组的粘合剂材料的第二相。

    High-strength, high-toughness matrix bit bodies
    94.
    发明授权
    High-strength, high-toughness matrix bit bodies 有权
    高强度，高韧性矩阵钻头体

    公开(公告)号：US07475743B2

    公开(公告)日：2009-01-13

    申请号：US11343225

    申请日：2006-01-30

    申请人： Dah-Ben Liang ,  Anthony Griffo ,  Thomas W. Oldham ,  Gregory T. Lockwood

    发明人： Dah-Ben Liang ,  Anthony Griffo ,  Thomas W. Oldham ,  Gregory T. Lockwood

    IPC分类号： E21B10/00

    CPC分类号： E21B10/46 ,  B22F2005/002 ,  C22C29/08 ,  E21B10/55

    摘要： A drill bit that includes a bit body formed from a matrix powder and at least one cutting element for engaging a formation, wherein the matrix powder included (a) stoichiometric tungsten carbide particles, (b) cemented tungsten carbide particles, and (c) cast tungsten carbide particles, and wherein after formation with the matrix powder, the bit has an erosion rate of less than 0.001 in/hr, a toughness of greater than 20 ksi(in0.5), and a transverse rupture strength of greater than 140 ksi is disclosed.

    摘要翻译： 一种钻头，其包括由基质粉末形成的一个位体和用于接合地层的至少一个切割元件，其中所述基质粉末包括（a）化学计量的碳化钨颗粒，（b）硬质合金碳化物颗粒，和（c）铸造 碳化钨颗粒，并且其中在与基体粉末形成之后，该钻头的侵蚀速率小于0.001英寸/小时，韧性大于20ksi（in.5），横向断裂强度大于140ksi 被披露。

    POLYCRYSTALLINE DIAMOND HAVING IMPROVED THERMAL STABILITY
    96.
    发明申请
    POLYCRYSTALLINE DIAMOND HAVING IMPROVED THERMAL STABILITY 有权
    具有改进的热稳定性的多晶金刚石

    公开(公告)号：US20080230280A1

    公开(公告)日：2008-09-25

    申请号：US11689434

    申请日：2007-03-21

    申请人： Madapusi K. Keshavan ,  Ronald K. Eyre ,  Anthony Griffo ,  Peter Thomas Cariveau

    发明人： Madapusi K. Keshavan ,  Ronald K. Eyre ,  Anthony Griffo ,  Peter Thomas Cariveau

    IPC分类号： E21B10/46

    CPC分类号： E21B10/55 ,  C22C1/05 ,  C22C26/00 ,  C22C2204/00 ,  E21B10/5673

    摘要： PCD constructions include a PCD body comprising a polycrystalline matrix region, a first region that includes a replacement material positioned remote from a body surface, and a second region that is substantially free of the replacement material and that extends a depth from the body surface. The PCD construction can further include a substrate that is attached to the body. The PCD body is formed by removing a solvent catalyst material used to form the body, replacing the removed solvent catalyst material with a replacement material, and then removing the replacement material from a region of the body to thereby form the second region. The replacement material can be introduced into the PCD body during a HPHT process, and the substrate may or may not be the source of the noncatalyzing material.

    摘要翻译： PCD结构包括包含多晶矩阵区域的PCD体，包括位于远离身体表面的置换材料的第一区域，以及基本上不含替换材料并从身体表面延伸深度的第二区域。 PCD构造还可以包括附接到身体的基底。 PCD体通过除去用于形成体的溶剂催化剂材料，用替代材料代替去除的溶剂催化剂材料，然后从体的区域去除替代材料，从而形成第二区域。 替代材料可以在HPHT过程中引入PCD体中，并且基材可以是或可以不是非催化材料的来源。

    Shaped inserts with increased retention force
    97.
    发明授权
    Shaped inserts with increased retention force 失效
    成型刀片具有增加的保持力

    公开(公告)号：US07416035B2

    公开(公告)日：2008-08-26

    申请号：US10917229

    申请日：2004-08-12

    申请人： Ramamurthy Viswanadham ,  Lance T. Richman ,  Chris E. Cawthorne ,  Anthony Griffo

    发明人： Ramamurthy Viswanadham ,  Lance T. Richman ,  Chris E. Cawthorne ,  Anthony Griffo

    IPC分类号： E21B10/16

    CPC分类号： E21B10/16

    摘要： A shaped insert that includes a top portion, and a grip length, wherein the grip length is modified to have a non-uniform cross sectional area is disclosed. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is modified such that the insert is non-cylindrical. In another case, a shaped insert includes a top portion, and a grip length, wherein the grip length is coated in a non-uniform manner.

    摘要翻译： 公开了一种成形插入件，其包括顶部和握持部分长度，其中把持长度被修改为具有不均匀的横截面面积。 在另一种情况下，成形插入件包括顶部部分和握持部分长度，其中握持部分长度被修改为使得插入件是非圆柱形的。 在另一种情况下，成形插入件包括顶部部分和握持部分长度，其中握持部分长度以不均匀的方式被涂覆。

    Thermally stable diamond cutting elements in roller cone drill bits
    99.
    发明授权
    Thermally stable diamond cutting elements in roller cone drill bits 失效
    滚子锥钻头中的热稳定金刚石切割元件

    公开(公告)号：US07407012B2

    公开(公告)日：2008-08-05

    申请号：US11189425

    申请日：2005-07-26

    申请人： Madapusi K. Keshavan ,  Anthony Griffo

    发明人： Madapusi K. Keshavan ,  Anthony Griffo

    IPC分类号： E21B10/00

    CPC分类号： E21B10/16 ,  E21B10/567 ,  E21B17/1092

    摘要： A roller cone drill bit for drilling earth formations includes a bit body having at least one roller cone rotably attached to the bit body and a plurality of cutting elements disposed on the at least one roller cone in a plurality of rows arranged circumferentially around the at least one roller cone, wherein at least one cutting element in the gage row, the heel row, or a surface of the at least one roller cone bounded by the gage and heel rows comprises thermally stable polycrystalline diamond or a thermally stable polycrystalline diamond composite. The at least one cutting element may be a TSD insert or a TSD composite insert and may be formed by brazing, sintering, or bonding by other technologies known in the art a thermally stable polycrystalline diamond table to a substrate. The interface between the diamond table and the substrate may be non-planar. A roller cone drill bit includes a bit body, at least one roller cone rotably attached to the bit body, and a plurality of cutting elements disposed on the at least one roller cone, where at least one of the plurality of cutting elements comprises thermally stable polycrystalline diamond or a thermally stable polycrystalline diamond composite and a cutting surface, wherein at least a portion of the cutting surface is contoured.

    摘要翻译： 一种用于钻探地层的滚子锥钻头包括一个钻头体，该钻头体具有可旋转地连接到钻头体上的至少一个滚子锥体，以及设置在至少一个滚子锥体上的多个切割元件， 一个滚子锥体，其中，所述量规行中的至少一个切割元件，所述后跟行或由所述计量和所述后跟行限定的所述至少一个滚子圆锥的表面包括热稳定的多晶金刚石或热稳定的多晶金刚石复合材料。 至少一个切割元件可以是TSD插入件或TSD复合插入件，并且可以通过本领域已知的其它技术将热稳定的多晶金刚石台面钎焊，烧结或粘合形成到基底上。 金刚石台和基板之间的界面可以是非平面的。 滚子锥形钻头包括钻头体，可旋转地附接到钻头体的至少一个滚子锥体和设置在至少一个滚子锥体上的多个切割元件，其中多个切割元件中的至少一个包括热稳定的 多晶金刚石或热稳定多晶金刚石复合材料和切割表面，其中切割表面的至少一部分是轮廓。