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公开(公告)号：US5592995A
公开(公告)日：1997-01-14
申请号：US468692
申请日：1995-06-06
IPC分类号： E21B10/52 , E21B10/56 , E21B10/567 , E21B10/573 , E21B10/16
CPC分类号： E21B10/5673 , E21B10/52 , E21B10/5676 , E21B10/5735 , E21B17/1092
摘要： An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and includes a plurality of cutting elements arranged in generally circumferential rows including an outer or heel row of cutting elements. At least one of the cutting elements in the heel row has an outermost surface at least partially formed of super-hard material that defines a cutting edge for shearing engagement with the sidewall of the borehole as the cutters roll and slide over the bottom of the borehole during drilling operations.
摘要翻译： 钻头具有一定体积，至少有一个悬臂轴承轴从钻头体向内和向下偏移。 刀具被安装成用于在轴承轴上旋转，并且包括多个切割元件，该切割元件大致圆周排布置，包括外部或后排的切割元件。 后跟行中的至少一个切割元件具有至少部分由超硬材料形成的最外表面，该超硬材料限定了切割刃，用于与钻孔的侧壁剪切接合，因为切割器在钻孔的底部滚动并滑动 在钻井作业。
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公开(公告)号：US5445231A
公开(公告)日：1995-08-29
申请号：US279583
申请日：1994-07-25
CPC分类号： E21B10/50
摘要： An earth-boring bit has a bit body, at least one cutter rotatably secured to the bit body and including a plurality of teeth formed integrally with the cutter and arranged in circumferential rows thereon. A pair of ribs is formed on at least one of the flanks of at least one of the teeth. The ribs are spaced apart to define a central depression therebetween extending through the crest of the tooth. A thickness of wear-resistant material fills the depression. According to a preferred embodiment of the present invention, wear-resistant material is applied over the ribs, crest, and a portion of the ends and flanks of the tooth, wherein the thickness of the wear-resistant material over the depressions greater, preferably 1/8 inch, than that elsewhere on the tooth.
摘要翻译： 钻头具有一个位体，至少一个切割器可旋转地固定到钻头体上并且包括与切割器一体地形成并且周向排成一列的多个齿。 一对肋形成在至少一个齿的至少一个侧面上。 肋间隔开以限定其间延伸穿过牙齿顶部的中心凹陷。 耐磨材料的厚度填满凹陷。 根据本发明的优选实施例，耐磨材料被施加在肋，凸起以及齿的端部和侧面的一部分上，其中耐磨材料在凹部上方的厚度更大，优选为1 / 8英寸，比其他地方的牙齿。
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公开(公告)号：US5407022A
公开(公告)日：1995-04-18
申请号：US157952
申请日：1993-11-24
申请人： Danny E. Scott , Rudolf C. Pessier
发明人： Danny E. Scott , Rudolf C. Pessier
摘要： A rolling cone drill bit is disclosed having gage inserts which are installed so as to create a relief angle between the outer surface of each insert and the sidewall of the borehole. Each gage insert only engages the sidewall at a leading edge of the outer surface of the insert.
摘要翻译： 公开了一种滚动锥钻头，其具有安装成在每个插入件的外表面和钻孔的侧壁之间形成一个平角的计量插入件。 每个量规插入件仅在插入件的外表面的前边缘处接合侧壁。
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公开(公告)号：US5355750A
公开(公告)日：1994-10-18
申请号：US159009
申请日：1993-11-29
摘要： An improved earth-boring bit the rolling cone variety and an insert for use therein is provided. A superabrasive element is coated with at least one layer of metallic material. The superabrasive element then is placed in a receptacle cavity in a pre-formed hard metal jacket. The superabrasive element then is brazed or infiltrated to the hard metal jacket. Metallurgical and mechanical bonds between the superabrasive element, the at least one layer of metallic material on superabrasive element, the braze or infiltrant binder material, and the fracture-tough material of the hard metal jacket retain the superabrasive element in the cavity of the hard metal jacket. Improved earth-boring bits according to this embodiment of the present invention provide abrasion-resistant earth-boring bits of the rolling cutter variety. Such improved bits, and the inserts therefore, are formed without resort to high-temperature, high-pressure processes.
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公开(公告)号：US5346026A
公开(公告)日：1994-09-13
申请号：US169880
申请日：1993-12-17
IPC分类号： E21B10/16 , E21B10/50 , E21B10/52 , E21B10/56 , E21B10/567 , E21B10/573 , E21B17/10 , E21B10/00
CPC分类号： E21B10/567 , E21B10/16 , E21B10/50 , E21B10/52 , E21B10/5673 , E21B10/5735 , E21B17/1092
摘要： An earth-boring bit has a cutter provided with hard gage inserts that protrude from the gage surface of the cutter to engage the side of the borehole for holding gage. The gage insert has a substantially flat, polygonal face, the sides of the polygonal face defining at least a pair of sharp cutting edges and at least a pair of cutting surfaces that define a negative rake angle with respect to the sidewall of the borehole that is being sheared by the gage insert. The face, cutting edge, and cutting surface of the gage insert are formed of a super-hard and abrasion-resistant material such as polycrystalline diamond or cubic boron nitride. The body of the insert is formed of a hard, fracture-tough material such as cemented tungsten carbide. The improved gage inserts are secured into sockets in the gage surface of the rolling cone cutter by interference fit. The improved gage inserts provide an actively cutting gage surface that engages the sidewall of the borehole to promote shearing removal of the sidewall material. Such an improved gage insert provides an earth-boring bit with improved gage-holding ability, and improved steerability in directional drilling operations.
摘要翻译： 钻头具有切割器，其具有从切割器的规格表面突出的硬量规插入件以接合用于保持量具的钻孔侧。 量具插入件具有基本上平坦的多边形面，多边形面的侧面限定至少一对锋利的切割边缘和至少一对切割表面，该切割表面相对于钻孔的侧壁限定负的前角， 被量具插入物剪断。 量规插入件的表面，切削刃和切削表面由超硬耐磨材料形成，例如多晶金刚石或立方氮化硼。 插入物的主体由硬质的，断裂韧性的材料形成，如硬质合金碳化物。 改进的量规插入件通过过盈配合固定在滚动锥形切割机的量规表面中的插座中。 改进的量规插入件提供与钻孔的侧壁接合的主动切割表面，以促进侧壁材料的剪切移除。 这种改进的量规插入件提供了具有改进的量具保持能力的钻孔钻头，并且在定向钻井操作中提高了可操纵性。
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公开(公告)号：US5248006A
公开(公告)日：1993-09-28
申请号：US881731
申请日：1992-05-07
IPC分类号： B22F7/06 , E21B10/52 , E21B10/56 , E21B10/567
CPC分类号： E21B10/5676 , B22F7/06 , E21B10/52 , E21B10/56
摘要： In an improved earth boring bit of the type having one or more rotable cones secured to bearing shafts, an improved cutting structure having diamond filled compacts used as a wear resistant inserts. The improved compacts have hard metal jackets and integrally formed diamond cores. The improved compacts are advantageously used as gage and heel row compacts when inserted in mating recesses provided on the exteriors of the rotatable cones.
摘要翻译： 在具有固定到轴承轴上的一个或多个可旋转锥体的类型的改进的钻孔中，具有用作耐磨插入件的具有金刚石填充的压块的改进的切割结构。 改进的压块具有硬金属外壳和整体形成的金刚石芯。 当插入到设置在可旋转锥体的外部上的配合凹槽中时，改进的压块有利地用作量具和跟部压块。
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公开(公告)号：US4643051A
公开(公告)日：1987-02-17
申请号：US806253
申请日：1985-12-06
申请人： Robert W. Simons , Danny E. Scott , John R. Poland
发明人： Robert W. Simons , Danny E. Scott , John R. Poland
CPC分类号： C23C30/005 , C21D9/22 , C23C8/04 , C23C8/22 , 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。
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公开(公告)号：US09909365B2
公开(公告)日：2018-03-06
申请号：US13098158
申请日：2011-04-29
申请人： Chih Lin , Danny E. Scott
发明人： Chih Lin , Danny E. Scott
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.
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79.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
CPC分类号： E21B10/00 , B24D18/00 , B24D99/005 , E21B7/00 , E21B10/567 , E21B10/5673 , E21B10/5676 , E21B10/5735
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。
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80.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
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。
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