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    Methods of forming and treating polycrystalline diamond cutting elements, cutting elements so formed and drill bits equipped
    71.
    发明授权
    Methods of forming and treating polycrystalline diamond cutting elements, cutting elements so formed and drill bits equipped 有权
    形成和处理多晶金刚石切割元件的方法，如此形成的切割元件和钻头配备

    公开(公告)号：US09435159B2

    公开(公告)日：2016-09-06

    申请号：US14064307

    申请日：2013-10-28

    申请人： Baker Hughes Incorporated

    发明人： Danny E. Scott

    IPC分类号： E21B10/46 ,  E21B10/56 ,  E21B10/567 ,  C04B35/52 ,  C04B35/645 ,  C22C26/00 ,  E21B10/573 ,  E21B10/36 ,  E21B10/55 ,  B22F5/00

    CPC分类号： E21B10/567 ,  B22F2005/001 ,  C04B35/52 ,  C04B35/645 ,  C04B2235/427 ,  C22C26/00 ,  E21B10/36 ,  E21B10/46 ,  E21B10/55 ,  E21B10/5735

    摘要： A polycrystalline diamond compact comprising a diamond table is formed in a high-pressure, high-temperature process using a catalyst, the catalyst being substantially removed from the entirety of the diamond table, and the diamond table attached to a supporting substrate in a subsequent high-pressure, high-temperature process using a binder material differing at least in part from a material of the catalyst. The binder material is permitted to penetrate substantially completely throughout the diamond table from an interface with the substrate to and including a cutting surface, and the binder material is selectively removed from a region or regions of the diamond table by a conventional technique (e.g., acid leaching). Cutting elements so formed and drill bits equipped with such cutting elements are also disclosed.

    摘要翻译： 包括金刚石台的多晶金刚石压块在使用催化剂的高压高温工艺中形成，催化剂从整个金刚石台基本上被除去，并且金刚石台在随后的高温中附接到支撑基底 压力，使用至少部分不同于催化剂材料的粘合剂材料的高温方法。 允许粘合剂材料穿过整个金刚石台从基材的界面基本上完全穿透并包括切割表面，并且通过常规技术（例如，酸）选择性地从金刚石台的区域或区域去除粘合剂材料 浸出）。 还公开了如此形成的切割元件和配备有这种切割元件的钻头。

    DYNAMIC WEAR PROTECTION FOR FIXED CUTTER DRILL BITS
    72.
    发明申请
    DYNAMIC WEAR PROTECTION FOR FIXED CUTTER DRILL BITS 审中-公开
    固定切割机钻头的动态磨损保护

    公开(公告)号：US20160237756A1

    公开(公告)日：2016-08-18

    申请号：US15027966

    申请日：2013-11-08

    申请人： HALLIBURTON ENERGY SERVICES, INC.

    发明人： Nuno Da Silva ,  Valerie Sillen ,  Stephan Regnard

    IPC分类号： E21B12/02 ,  E21B10/55

    CPC分类号： E21B12/02 ,  E21B10/42 ,  E21B10/55

    摘要： An example method for dynamic wear prediction for a drill bit with a cutting structure may include receiving at a processor of an information handling system an unworn profile of the cutting structure and a diamond distribution of the cutting structure. The diamond distribution may include a three-dimensional diamond distribution characterized by radial and axial position on the drill bit. The method may include calculating a final predicted wear profile of the cutting structure based, at least in part, on the unworn profile and the diamond distribution. The method also may include calculating iterations of intermediary wear profiles based, at least in part, on the previous wear profile and the diamond distribution. The final predicted wear profile may indicate a fully worn portion of the cutting structure. A usable life for the drill bit may be determined based, at least in part, on the final predicted wear profile.

    摘要翻译： 用于具有切割结构的钻头的动态磨损预测的示例方法可包括在信息处理系统的处理器处接收切割结构的未磨损轮廓和切割结构的金刚石分布。 钻石分布可以包括以钻头上的径向和轴向位置为特征的三维金刚石分布。 该方法可以包括至少部分地基于未磨损的轮廓和钻石分布来计算切割结构的最终预测的磨损轮廓。 该方法还可以包括至少部分地基于先前的磨损轮廓和钻石分布来计算中间磨损轮廓的迭代。 最终预测的磨损轮廓可以指示切割结构的完全磨损的部分。 可以至少部分地基于最终预测的磨损轮廓来确定钻头的可用寿命。

    Minimizing stick-slip while drilling
    75.
    发明授权
    Minimizing stick-slip while drilling 有权
    钻孔时最大限度地减少粘滑

    公开(公告)号：US09353577B2

    公开(公告)日：2016-05-31

    申请号：US14063926

    申请日：2013-10-25

    申请人： SCHLUMBERGER TECHNOLOGY CORPORATION

    发明人： Jahir Pabon

    IPC分类号： E21B10/42 ,  E21B10/55 ,  E21B10/43 ,  E21B10/54 ,  G06F17/50

    CPC分类号： E21B10/43 ,  E21B10/54 ,  G06F17/50

    摘要： According to the invention, a method for designing a rotary drill bit for drilling a cavity in a medium is disclosed. The method may include determining a characteristic of a drillstring with which the rotary drill bit is coupled. The method may also include determining an initial number of groups of cutters for the rotary drill bit, where each group of cutters includes a plurality of cutters substantially aligned along a different radius of the drilling face. The method may moreover include determining a characteristic of the medium relative to a characteristic of the cutters. The method may additionally include determining a characteristic of a rotational motion source used to rotate the rotary drill bit. The method may further include determining the angles of pitch between each of the groups of cutters to minimize an amount of sticking or slipping of the bit in the medium during a drilling operation.

    摘要翻译： 根据本发明，公开了一种设计用于在介质中钻孔的旋转钻头的方法。 该方法可以包括确定旋转钻头与之联接的钻柱的特性。 该方法还可以包括确定用于旋转钻头的切割器组的初始数量，其中每组切割器包括沿着钻孔面的不同半径基本上对齐的多个切割器。 该方法还可以包括相对于切割器的特性确定介质的特性。 该方法可以另外包括确定用于旋转旋转钻头的旋转运动源的特性。 该方法还可以包括确定每组切割器之间的间距角，以在钻孔操作期间最小化钻头在介质中的粘着或滑动的量。

    Rotary drill bits with protected cutting elements and methods
    76.
    发明授权
    Rotary drill bits with protected cutting elements and methods 有权
    旋转钻头带有保护的切割元件和方法

    公开(公告)号：US09316057B2

    公开(公告)日：2016-04-19

    申请号：US13540451

    申请日：2012-07-02

    申请人： Shilin Chen ,  William W. King

    发明人： Shilin Chen ,  William W. King

    IPC分类号： G06G7/48 ,  E21B10/55 ,  E21B10/567 ,  E21B10/573

    CPC分类号： E21B10/55 ,  E21B10/567 ,  E21B10/5735

    摘要： A rotary drill bit with cutting elements operable to control depth of cut and rate of penetration during formation of a wellbore are provided. Respective sets of secondary cutting elements and primary cutting elements may also be disposed on exterior portions of a rotary drill bit. A number of blades may extend from exterior portions of the drill bit with a number of cutting elements disposed on exterior portions of each blade. Each cutting element may include a substrate with a cutting surface disposed thereon. A respective protector may extend from the cutting surface of one or more cutting elements to limit depth of penetration of the associated cutting element into adjacent portions of a downhole formation and/or to control rate of penetration of an associated rotary drill bit.

    摘要翻译： 提供一种具有切削元件的旋转钻头，其可操作以在井筒形成期间控制切割深度和穿透速率。 各组二次切割元件和主切割元件也可以设置在旋转钻头的外部部分上。 多个叶片可以从设置在每个叶片的外部部分上的多个切割元件从钻头的外部部分延伸。 每个切割元件可以包括其上设置有切割表面的基底。 相应的保护器可以从一个或多个切割元件的切割表面延伸，以将相关联的切割元件的穿透深度限制在井下地层的相邻部分中和/或控制相关联的旋转钻头的穿透速率。

    METHOD FOR FORMING A CUTTING ELEMENT AND DOWNHOLE TOOLS INCORPORATING THE SAME
    77.
    发明申请
    METHOD FOR FORMING A CUTTING ELEMENT AND DOWNHOLE TOOLS INCORPORATING THE SAME 审中-公开

    公开(公告)号：US20160047171A1

    公开(公告)日：2016-02-18

    申请号：US14921040

    申请日：2015-10-23

    申请人： SMITH INTERNATIONAL, INC.

    发明人： Georgiy Voronin

    IPC分类号： E21B10/567 ,  B24D18/00 ,  B24D3/10 ,  E21B10/55

    CPC分类号： E21B10/567 ,  B24D3/02 ,  B24D3/10 ,  B24D11/00 ,  B24D18/00 ,  B24D18/0009 ,  B24D99/005 ,  C09K3/14 ,  E21B10/46 ,  E21B10/55 ,  E21B2010/545

    摘要： Cutting elements include an ultrahard material body formed at high pressure and high temperature conditions in the absence of catalyzing material to provide a material microstructure comprising a matrix phase of bonded together ultrahard material particles and interstitial regions disposed throughout the matrix phase providing porosity of less than about 6 volume percent. The body may include a substrate attached thereto, and may include an infiltrant material disposed in a population of the interstitial regions. The body may have regions with different porosities, e.g., with a higher porosity region located adjacent a substrate interface and/or along a central region. The body may include more than one infiltrant, each located in different regions. The infiltrant may be introduced into the body during a separate high pressure/high temperature process. The body may include a region which extends a depth from a working surface that is substantially free of any infiltrant.

    METHODS OF FORMING EARTH-BORING TOOLS INCLUDING SINTERBONDED COMPONENTS
    78.
    发明申请
    METHODS OF FORMING EARTH-BORING TOOLS INCLUDING SINTERBONDED COMPONENTS 有权
    形成包含烧结组件的接地工具的方法

    公开(公告)号：US20160023327A1

    公开(公告)日：2016-01-28

    申请号：US14874639

    申请日：2015-10-05

    申请人： BAKER HUGHES INCORPORATED

    发明人： Redd H. Smith ,  Nicholas J. Lyons

    IPC分类号： B24D3/00 ,  E21B10/55 ,  B24D18/00 ,  B24D3/20 ,  B22F7/06

    CPC分类号： B24D3/007 ,  B22F3/10 ,  B22F3/1017 ,  B22F3/16 ,  B22F7/06 ,  B22F7/062 ,  B22F2005/002 ,  B22F2999/00 ,  B24D3/06 ,  B24D3/20 ,  B24D18/0009 ,  E21B10/00 ,  E21B10/42 ,  E21B10/54 ,  E21B10/55 ,  E21B10/602 ,  B22F2207/17

    摘要： Partially formed earth-boring rotary drill bits comprise a first less than fully sintered particle-matrix component having at least one recess, and at least a second less than fully sintered particle-matrix component disposed at least partially within the at least one recess. Each less than fully sintered particle-matrix component comprises a green or brown structure including compacted hard particles, particles comprising a metal alloy matrix material, and an organic binder material. The at least a second less than fully sintered particle-matrix component is configured to shrink at a slower rate than the first less than fully sintered particle-matrix component due to removal of organic binder material from the less than fully sintered particle-matrix components in a sintering process to be used to sinterbond the first less than fully sintered particle-matrix component to the first less than fully sintered particle-matrix component. Earth-boring rotary drill bits comprise such components sinterbonded together.

    摘要翻译： 部分形成的钻地旋转钻头包括具有至少一个凹部的第一小于完全烧结的颗粒 - 基体部件，以及至少部分地设置在至少一个凹部内的至少第二小于完全烧结的颗粒 - 基体部件。 每个小于完全烧结的颗粒 - 基质组分包括绿色或棕色结构，包括压实的硬颗粒，包含金属合金基质材料的颗粒和有机粘合剂材料。 至少第二个小于完全烧结的颗粒 - 基体组分的第二个构造成以比第一个小于完全烧结的颗粒 - 基质组分更慢的速率收缩，这是由于从少于完全烧结的颗粒 - 基质组分中除去有机粘合剂材料 用于将第一少于完全烧结的颗粒 - 基体组分烧结到第一小于完全烧结的颗粒 - 基质组分的烧结工艺。 钻孔旋转钻头包括烧结在一起的这种部件。

    REDUCED LENGTH AND LOW COBALT CONTENT CUTTERS AND DRILL BIT MADE THEREWITH
    79.
    发明申请
    REDUCED LENGTH AND LOW COBALT CONTENT CUTTERS AND DRILL BIT MADE THEREWITH 审中-公开
    减少长度和低钴含量切割机和钻头

    公开(公告)号：US20160017665A1

    公开(公告)日：2016-01-21

    申请号：US14331761

    申请日：2014-07-15

    申请人： Shear Bits, Ltd.

    发明人： Timothy P. Beaton

    IPC分类号： E21B10/55 ,  E21B10/573

    CPC分类号： E21B10/573 ,  B22F7/06 ,  B22F2005/001 ,  C22C26/00 ,  C22C29/08 ,  E21B10/43

    摘要： A cutter for a fixed cutter drill bit includes a substrate and a cutting material surface affixed to one end of the substrate. The substrate comprises tungsten carbide having at least six percent by weight and at most ten percent by weight of cobalt. An overall length of the cutter is at most 10 millimeters. In one embodiment an overall length of the cutter is at most 8 millimeters.

    摘要翻译： 用于固定切割钻头的切割器包括固定到基底的一端的基底和切割材料表面。 该基材包括具有至少6重量％和至多10重量％钴的碳化钨。 刀具的总长度至多为10毫米。 在一个实施例中，切割器的总长度至多为8毫米。