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    Method for manufacturing a drilling tool with an elastomer seal having graded properties
    1.
    发明授权
    Method for manufacturing a drilling tool with an elastomer seal having graded properties 有权
    具有弹性体密封件的具有分级特性的钻具的制造方法

    公开(公告)号：US07168147B2

    公开(公告)日：2007-01-30

    申请号：US11177388

    申请日：2005-07-08

    申请人： Redd H. Smith ,  Terry J. Koltermann ,  Jiri George Drobny

    发明人： Redd H. Smith ,  Terry J. Koltermann ,  Jiri George Drobny

    IPC分类号： B23P11/02 ,  F16J15/00

    CPC分类号： E21B10/25 ,  F16J15/106 ,  F16J15/166 ,  F16J15/32 ,  F16J15/324 ,  F16J15/3284 ,  Y10T29/49872 ,  Y10T29/4998

    摘要： A method of forming a seal for a subterranean drilling tool employs irradiation. The seal is formed of a single homogeneous elastomeric material. The seal has an exterior surface with at least one portion that is in sliding engagement with part of a seal gland of the drilling tool. A property gradient is formed in the elastomeric material on at least this portion. The property gradient is formed by exposing the seal to an environment to define a property that changes from a first level to a second level without essentially changing the composition of the elastomeric material. The step of exposing is done by irradiating the seal with an electron beam.

    摘要翻译： 形成用于地下钻井工具的密封件的方法采用照射。 密封件由单一均匀的弹性体材料形成。 密封件具有外表面，其具有与钻具的密封压盖的一部分滑动接合的至少一个部分。 至少该部分在弹性体材料中形成特性梯度。 性质梯度通过将密封件暴露于环境来形成，以限定从第一层次变化到第二水平的性质，而基本上不改变弹性体材料的组成。 通过用电子束照射密封来进行曝光的步骤。

    Drilling tool with elastomer seal having graded properties
    2.
    发明授权
    Drilling tool with elastomer seal having graded properties 有权
    具有弹性密封件的钻具具有分级性能

    公开(公告)号：US07914006B2

    公开(公告)日：2011-03-29

    申请号：US11178120

    申请日：2005-07-08

    申请人： Redd H. Smith ,  Terry J. Koltermann

    发明人： Redd H. Smith ,  Terry J. Koltermann

    IPC分类号： F16J15/32

    CPC分类号： E21B10/25 ,  F16J15/106 ,  F16J15/166 ,  F16J15/32 ,  F16J15/324 ,  F16J15/3284 ,  Y10T29/49872 ,  Y10T29/4998

    摘要： A subterranean drill tool has a seal gland formed between a rotating and a static surface. An annular elastomeric seal is located in the gland in engagement with each of the surfaces. A property gradient is formed in at least part of the elastomeric material. The property gradient defines a property that changes from a first level at the surface to a second level in the interior of the seal. The elastomeric material within the property gradient has the same chemical composition as the rest of the seal.

    摘要翻译： 地下钻具具有在旋转和静止表面之间形成的密封压盖。 环形弹性体密封件位于压盖中，与每个表面接合。 在弹性体材料的至少一部分中形成特性梯度。 属性渐变定义了一个属性，该属性从密封件内部的表面的第一级变为第二级。 属性梯度内的弹性体材料与密封件的其余部分具有相同的化学成分。

    Displacement members and intermediate structures for use in forming at least a portion of bit bodies of earth-boring rotary drill bits
    3.
    发明授权
    Displacement members and intermediate structures for use in forming at least a portion of bit bodies of earth-boring rotary drill bits 有权
    位移构件和中间结构，用于形成钻孔旋转钻头的钻头体的至少一部分

    公开(公告)号：US08272295B2

    公开(公告)日：2012-09-25

    申请号：US11635432

    申请日：2006-12-07

    申请人： Redd H. Smith ,  John H. Stevens

    发明人： Redd H. Smith ,  John H. Stevens

    IPC分类号： B21K5/04

    CPC分类号： E21B10/55 ,  B22F2998/00 ,  C22C1/1036 ,  C22C2204/00 ,  E21B10/00 ,  C22C29/08

    摘要： Displacement members for use in forming a bit body of an earth-boring rotary drill bit include a body having an exterior surface, at least a portion of which is configured to define at least one surface of the bit body as the bit body is formed around the displacement member. In some embodiments, the body may be hollow and/or porous. Methods for forming earth-boring rotary drill bits include positioning such a displacement member in a mold and forming a bit body around the displacement member in the mold. Additional methods include pressing a plurality of particles to form a body, forming at least one recess in the body, positioning such a displacement member in the recess, and sintering the body to form a bit body.

    摘要翻译： 用于形成钻头旋转钻头的位体的位移构件包括具有外表面的主体，其至少一部分构造成在钻头体周围形成时限定钻头体的至少一个表面 位移构件。 在一些实施例中，主体可以是中空的和/或多孔的。 用于形成钻孔旋转钻头的方法包括将这种位移构件定位在模具中并且在模具中的位移构件周围形成钻头体。 附加方法包括按压多个颗粒以形成主体，在主体中形成至少一个凹部，将这种位移构件定位在凹部中，并且烧结体以形成钻头体。

    Methods of forming bit bodies
    4.
    发明授权
    Methods of forming bit bodies 有权
    形成钻头体的方法

    公开(公告)号：US07841259B2

    公开(公告)日：2010-11-30

    申请号：US11646225

    申请日：2006-12-27

    申请人： Redd H. Smith ,  John H. Stevens

    发明人： Redd H. Smith ,  John H. Stevens

    IPC分类号： B21K5/04

    CPC分类号： B22F7/06 ,  C22C26/00 ,  C22C29/00 ,  E21B10/54

    摘要： Methods for forming bodies of earth-boring drill bits and other tools include milling a plurality of hard particles and a plurality of particles comprising a matrix material to form a mill product comprising powder particles, separating the particles into a plurality of particle size fractions. Some of the particles from the fractions may be combined to form a powder mixture, which may be pressed to form a green body. Additional methods include mixing a plurality of hard particles and a plurality of particles comprising a matrix material to form a powder mixture, and pressing the powder mixture with pressure having an oscillating magnitude to form a green body. In yet additional methods a powder mixture may be pressed within a deformable container to form a green body and drainage of liquid from the container is enabled as the powder mixture is pressed.

    摘要翻译： 用于形成钻孔钻头和其他工具的主体的方法包括铣削多个硬颗粒和多个包含基质材料的颗粒，以形成包含粉末颗粒的研磨产物，将颗粒分离成多个颗粒级分。 可以将来自级分的一些颗粒组合以形成粉末混合物，其可以被压制以形成生坯体。 附加方法包括混合多个硬颗粒和多个包含基质材料的颗粒以形成粉末混合物，并且以具有振荡大小的压力挤压粉末混合物以形成生坯体。 在另外的方法中，粉末混合物可以在可变形容器内压制以形成生坯，并且当粉末混合物被压制时，能够从容器排出液体。

    METHODS OF FORMING EARTH-BORING TOOLS USING GEOMETRIC COMPENSATION AND TOOLS FORMED BY SUCH METHODS
    5.
    发明申请
    METHODS OF FORMING EARTH-BORING TOOLS USING GEOMETRIC COMPENSATION AND TOOLS FORMED BY SUCH METHODS 有权
    使用这种方法形成的几何补偿和工具形成地球工具的方法

    公开(公告)号：US20090301786A1

    公开(公告)日：2009-12-10

    申请号：US12133245

    申请日：2008-06-04

    申请人： Redd H. Smith ,  John H. Stevens ,  James L. Duggan ,  Nicholas J. Lyons ,  Jimmy W. Eason ,  Oliver Matthews, III

    发明人： Redd H. Smith ,  John H. Stevens ,  James L. Duggan ,  Nicholas J. Lyons ,  Jimmy W. Eason ,  Oliver Matthews, III

    IPC分类号： E21B10/00 ,  B21K5/04

    CPC分类号： E21B10/00

    摘要： Geometric compensation techniques are used to improve the accuracy by which features may be located on drill bits formed using particle compaction and sintering processes. In some embodiments, a positional error to be exhibited by at least one feature in a less than fully sintered bit body upon fully sintering the bit body is predicted and the at least one feature is formed on the less than fully sintered bit body at a location at least partially determined by the predicted positional error. In other embodiments, bit bodies of earth-boring rotary drill bits are designed to include a design drilling profile and a less than fully sintered bit body is formed including a drilling profile having a shape differing from a shape of the design drilling profile. Less than fully sintered bit bodies of earth-boring rotary drill bits are formed using such methods.

    摘要翻译： 使用几何补偿技术来提高使用粒子压实和烧结过程形成的钻头上的特征可以确定的精度。 在一些实施例中，预测了在完全烧结钻头体时，小于完全烧结的钻头体中的至少一个特征所呈现的位置误差，并且在位于不到完全烧结的钻头体的位置上形成至少一个特征 至少部分地由预测的位置误差确定。 在其它实施例中，钻孔旋转钻头的钻头体被设计成包括设计钻孔剖面，并且形成的钻孔轮廓小于完全烧结的钻头体，其具有与设计钻削剖面形状不同的形状。 使用这种方法形成小于钻孔旋转钻头的完全烧结钻头体。

    Earth-boring tools and cutter assemblies having a cutting element co-sintered with a cone structure, methods of using the same
    6.
    发明申请
    Earth-boring tools and cutter assemblies having a cutting element co-sintered with a cone structure, methods of using the same 审中-公开
    具有与锥形结构共烧结的切割元件的钻孔工具和切割器组件，其使用方法

    公开(公告)号：US20080202814A1

    公开(公告)日：2008-08-28

    申请号：US11710091

    申请日：2007-02-23

    申请人： Nicholas J. Lyons ,  John H. Stevens ,  Redd H. Smith

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

    IPC分类号： E21B10/36

    CPC分类号： E21B10/50

    摘要： Methods of forming cutter assemblies for use on earth-boring tools include sintering a cone structure to fuse one or more cutting elements thereto. In some embodiments, one or more green, brown, or fully sintered cutting elements may be positioned on a green or brown cone structure prior to sintering the cone structure to a final density. Cutter assemblies may be formed by such methods, and such cutter assemblies may be used in earth-boring tools such as, for example, earth-boring rotary drill bits and hole openers.

    摘要翻译： 形成用于钻孔工具的切割器组件的方法包括烧结锥形结构以将一个或多个切割元件熔合到其上。 在一些实施例中，在将锥形结构烧结到最终密度之前，可以将一个或多个绿色，棕色或完全烧结的切割元件定位在绿色或棕色锥形结构上。 切割器组件可以通过这种方法形成，并且这种切割器组件可以用于例如钻孔旋转钻头和开孔器的钻孔工具中。

    Stud design for drill bit cutting element
    9.
    发明授权
    Stud design for drill bit cutting element 失效
    钻头切割元件的螺柱设计

    公开(公告)号：US5431239A

    公开(公告)日：1995-07-11

    申请号：US44938

    申请日：1993-04-08

    申请人： Gordon A. Tibbitts ,  Craig H. Cooley ,  Redd H. Smith ,  Paul E. Pastusek ,  Ralph M. Horton

    发明人： Gordon A. Tibbitts ,  Craig H. Cooley ,  Redd H. Smith ,  Paul E. Pastusek ,  Ralph M. Horton

    IPC分类号： E21B10/56 ,  E21B10/567 ,  E21B10/46

    CPC分类号： E21B10/567

    摘要： An improved stud design for an earth boring drill bit is disclosed preferably using materials of different hardness and toughness layered to provide maximum resistance to surface abrasion coupled with excellent structural properties including high strength with maximum fracture toughness. The bit body is conventionally attached to a drill string, and has a crown and gage portion. The studs preferably include a core, made of steel or other material having high fracture toughness, covered at least in part with a hard, abrasion resistant material such as tungsten carbide. Each stud is secured to a socket in the bit body by means of brazing or other suitable means such as a press fit. The cutting element is brazed to a mounting face of the stud prior to affixation of the stud to the bit body and is preferably comprised of a polycrystalline diamond compact adhered to a backing layer of tungsten carbide.

    摘要翻译： 公开了一种用于钻孔钻头的改进的螺柱设计，其使用不同硬度和韧性的材料，其层压以提供对表面磨损的最大阻力，以及优异的结构特性，包括具有最大断裂韧性的高强度。 钻头主体通常安装在钻柱上，并具有表冠和表面部分。 螺柱优选地包括由钢或其他具有高断裂韧性的材料制成的芯，至少部分地用硬的耐磨材料（例如碳化钨）覆盖。 每个螺柱通过钎焊或其他合适的方式如压配合固定在钻头体中的插座上。 在将螺柱固定到钻头体之前，将切割元件钎焊到螺柱的安装面上，并且优选地由粘附到碳化钨背衬层的多晶金刚石块组成。