Pack carburizing process for earth boring drill bits
    51.
    发明授权
    Pack carburizing process for earth boring drill bits 失效
    用于钻孔钻头的渗碳渗碳工艺

    公开(公告)号:US4643051A

    公开(公告)日:1987-02-17

    申请号:US806253

    申请日:1985-12-06

    IPC分类号: C21D9/22 C23C8/66

    摘要: A method of manufacturing an earth boring bit of the type having a bearing pin which extends from a head section of the drill bit for rotatably mounting a cutter. A container is provided having opposing end openings with sidewalls therebetween which define a container interior. The container is placed over a portion of the head section so that the pin extends within the interior of the container. A spring spacer is then installed within the interior of the container about at least a portion of the circumference of the bearing pin at at least one axial location. The container is then packed with a particulate treating medium, the container is covered, and the pin and container are placed into a furnace for a time and at a temperature sufficient to activate the treating medium.

    摘要翻译: 一种制造具有从钻头的头部延伸的用于可旋转地安装切割器的轴承销类型的钻孔钻头的方法。 一个容器被提供有具有相对的端部开口,其间具有限定容器内部的侧壁。 容器放置在头部部分的一部分上,使得销在容器的内部延伸。 弹簧间隔件在至少一个轴向位置处围绕着轴承销的圆周的至少一部分安装在容器内部。 然后将容器用颗粒处理介质填充,容器被覆盖,并将销和容器放置在炉中一段时间​​并且足以激活处理介质的温度。

    Downhole tools having mechanical joints with enhanced surfaces

    公开(公告)号:US09909365B2

    公开(公告)日:2018-03-06

    申请号:US13098158

    申请日:2011-04-29

    IPC分类号: E21B10/22 E21B4/02 E21B43/12

    CPC分类号: E21B10/22 E21B4/02 E21B43/128

    摘要: A downhole tool comprises a mechanical joint, and a diamond-like coating over at least a portion of a surface of at least one component of the mechanical joint, the diamond-like coating having a thickness greater than 10 micrometers. Methods of manufacturing a mechanical joint of a downhole tool comprise disposing a diamond-like coating on at least a portion of a surface of a component of the mechanical joint of the downhole tool to a thickness of at least 10 microns and at a temperature less than about 200° C.

    Earth-boring tools having shaped cutting elements
    54.
    发明授权
    Earth-boring tools having shaped cutting elements 有权
    具有成形切削元件的钻孔工具

    公开(公告)号:US09074435B2

    公开(公告)日:2015-07-07

    申请号:US13098123

    申请日:2011-04-29

    摘要: Cutting elements include a volume of superabrasive material. The volume of superabrasive material comprises a front-cutting surface, an end-cutting surface, a cutting edge, and lateral side surfaces extending between and intersecting each of the front-cutting surface and the end-cutting surface. An earth-boring tool may comprise a bit body and at least one cutting element attached to the bit body. Methods of forming cutting elements comprise forming a volume of superabrasive material comprising forming a front-cutting surface, an end-cutting surface, a cutting edge, and lateral side surfaces extending between and intersecting each of the front-cutting surface and the end-cutting surface. Methods of forming earth-boring tools comprise forming a cutting element and attaching the cutting element to an earth-boring tool.

    摘要翻译: 切割元件包括一定量的超级磨料。 超硬材料的体积包括前切割表面,端切割表面,切割边缘和在每个前切割表面和端切割表面之间延伸并在其之间交叉的横向侧表面。 钻孔工具可以包括钻头体和附接到钻头体的至少一个切割元件。 形成切割元件的方法包括形成一定体积的超级磨料,包括形成前切割表面,端切割表面,切割边缘以及在每个前切割表面和末端切割之间延伸并与之相交的横向侧表面 表面。 形成钻孔工具的方法包括形成切割元件并将切割元件附接到钻孔工具。

    Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools
    55.
    发明授权
    Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools 有权
    用于钻孔工具的切削元件,包括这种切削元件的钻孔工具以及用于钻孔工具的这种切削元件的形成方法

    公开(公告)号:US08807247B2

    公开(公告)日:2014-08-19

    申请号:US13165145

    申请日:2011-06-21

    IPC分类号: E21B10/573 E21B10/567

    摘要: Cutting elements for use with earth-boring tools include a cutting table having at least two sections where a boundary between the at least two sections is at least partially defined by a discontinuity formed in the cutting table. Earth-boring tools including a tool body and a plurality of cutting elements carried by the tool body. The cutting elements include a cutting table secured to a substrate. The cutting table includes a plurality of adjacent sections, each having a discrete cutting edge where at least one section is configured to be selectively detached from the substrate in order to substantially expose a cutting edge of an adjacent section. Methods for fabricating cutting elements for use with an earth-boring tool including forming a cutting table comprising a plurality of adjacent sections.

    摘要翻译: 用于钻孔工具的切割元件包括具有至少两个部分的切割台,其中至少两个部分之间的边界至少部分地由切割台中形成的不连续部分限定。 钻孔工具包括工具主体和由工具主体承载的多个切割元件。 切割元件包括固定到基底的切割台。 切割台包括多个相邻的部分,每个部分具有离散的切割边缘,其中至少一个部分被配置为从基板选择性地分离,以便基本上暴露相邻部分的切割边缘。 用于制造用于钻孔工具的切割元件的方法,包括形成包括多个相邻部分的切割台。

    Methods of forming polycrystalline diamond cutting elements, cutting elements so formed and drill bits so equipped
    57.
    发明授权
    Methods of forming polycrystalline diamond cutting elements, cutting elements so formed and drill bits so equipped 有权
    形成多晶金刚石切割元件的方法,如此形成的切割元件和如此装备的钻头

    公开(公告)号:US08573332B2

    公开(公告)日:2013-11-05

    申请号:US12688473

    申请日:2010-01-15

    申请人: Danny E. Scott

    发明人: Danny E. Scott

    IPC分类号: E21B10/36

    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。

    Abrasive-impregnated cutting structure having anisotropic wear resistance and drag bit including same
    60.
    发明授权
    Abrasive-impregnated cutting structure having anisotropic wear resistance and drag bit including same 有权
    具有各向异性耐磨性的磨料浸渍切割结构和包括其的阻力钻头

    公开(公告)号:US08333814B2

    公开(公告)日:2012-12-18

    申请号:US12396556

    申请日:2009-03-03

    IPC分类号: B24D18/00 B24D99/00 B21K5/02

    CPC分类号: E21B10/54 B33Y80/00 E21B10/46

    摘要: An abrasive-impregnated cutting structure for use in drilling a subterranean formation is disclosed. The abrasive-impregnated cutting structure may comprise a plurality of abrasive particles dispersed within a substantially continuous matrix, wherein the abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. One or more of the amount, average size, composition, properties, shape, quality, strength, and concentration of the abrasive particles may vary within the abrasive-impregnated cutting structure. Anisotropic wear resistance may relate to a selected direction, such as, for example, one or more of an expected direction of engagement of the abrasive-impregnated cutting structure with the subterranean formation and an anticipated wear direction. Anisotropic wear resistance of an abrasive-impregnated cutting structure may be configured for forming or retaining a formation-engaging leading edge thereof. A rotary drag bit including at least one abrasive-impregnated cutting structure is disclosed.

    摘要翻译: 公开了一种用于钻探地下地层的磨料浸渍切割结构。 磨料浸渍的切割结构可以包括分散在基本上连续的基质中的多个磨料颗粒,其中磨料浸渍的切割结构呈现各向异性的耐磨性。 磨料颗粒的数量,平均尺寸,组成,性能,形状,质量,强度和浓度中的一种或多种可以在磨料浸渍的切割结构内变化。 各向异性耐磨性可以涉及所选择的方向,例如,磨料浸渍的切割结构与地层的预期接合方向中的一个或多个以及预期的磨损方向。 磨料浸渍的切割结构的各向异性耐磨性可以被构造成用于形成或保持其与地层接合的前缘。 公开了一种包括至少一个磨料浸渍的切割结构的旋转牵引钻头。