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    Coupling members for coupling a body of an earth-boring drill tool to a drill string, earth-boring drilling tools including a coupling member, and related methods
    82.
    发明授权
    Coupling members for coupling a body of an earth-boring drill tool to a drill string, earth-boring drilling tools including a coupling member, and related methods 有权
    用于将钻孔钻具的主体联接到钻柱的联接构件，包括联接构件的钻孔钻具和相关方法

    公开(公告)号：US09206651B2

    公开(公告)日：2015-12-08

    申请号：US12603978

    申请日：2009-10-22

    申请人： John H. Stevens ,  Jimmy W. Eason ,  Ian D. Harris

    发明人： John H. Stevens ,  Jimmy W. Eason ,  Ian D. Harris

    IPC分类号： E21B10/00 ,  E21B10/42

    CPC分类号： F16L13/02 ,  E21B10/00 ,  E21B10/42

    摘要： Coupling members for coupling an earth-boring drill tool to a drill string, drilling tools including a coupling member attached to a body of an earth-boring drill tool, methods for forming drilling tools including a coupling member, and methods for forming coupling members are disclosed. A coupling member may include a distal region comprising a first material composition and a proximal region comprising a second, different material composition. A drilling tool may include a body that is attached to a coupling member with a varied material composition for coupling the body to a drill string.

    摘要翻译： 用于将钻孔钻具连接到钻柱的联接构件，包括连接到钻孔钻具的主体的联接构件的钻具，用于形成包括联接构件的钻具的形成方法以及用于形成联接构件的方法， 披露 联接构件可以包括远侧区域，其包括第一材料组合物和包含第二不同材料组合物的近侧区域。 钻具可以包括主体，其连接到具有用于将主体连接到钻柱的不同材料组合件的联接构件。

    Displacement members and intermediate structures for use in forming at least a portion of bit bodies of earth-boring rotary drill bits
    85.
    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 AT LEAST A PORTION OF EARTH-BORING TOOLS
    87.
    发明申请
    METHODS OF FORMING AT LEAST A PORTION OF EARTH-BORING TOOLS 有权
    至少形成一个地球工具的方法

    公开(公告)号：US20110284179A1

    公开(公告)日：2011-11-24

    申请号：US13111666

    申请日：2011-05-19

    申请人： John H. Stevens ,  Jimmy W. Eason

    发明人： John H. Stevens ,  Jimmy W. Eason

    IPC分类号： B22D27/00 ,  B22D25/06 ,  B22D25/02

    CPC分类号： C22F1/10 ,  B22D19/06 ,  B22D19/14 ,  B22F2998/00 ,  C22C1/1068 ,  C22C19/07 ,  B22F2005/001 ,  C22C29/08 ,  C22C32/0052

    摘要： Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and adjusting a stoichiometry of at least one hard material phase of the at least a portion of the earth-boring tool. Methods of forming a roller cone of an earth-boring rotary drill bit comprise forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and converting an eta-phase region within the roller cone to at least one of WC and W2C.

    摘要翻译： 形成钻凿工具的至少一部分的方法包括在模腔中提供包含硬质材料的颗粒物质，熔化金属和硬质材料，以形成包含金属的共晶或近共晶组合物的熔融组合物，以及 硬质材料，铸造熔融组合物以在模具腔内形成钻孔工具的至少一部分，以及调整钻孔工具的至少一部分的至少一个硬质材料相的化学计量。 形成钻孔旋转钻头的辊锥的方法包括形成熔融组合物，将熔融组合物浇铸在模腔内，固化熔融组合物以形成辊锥，并将辊锥内的等级相区域 至WC和W2C中的至少一个。

    Methods of forming bit bodies
    88.
    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。

    Earth-boring rotary drill bits including bit bodies comprising reinforced titanium or titanium-based alloy matrix materials, and methods for forming such bits
    89.
    发明授权
    Earth-boring rotary drill bits including bit bodies comprising reinforced titanium or titanium-based alloy matrix materials, and methods for forming such bits 有权
    包括加强钛或钛基合金基体材料的钻头体的钻孔旋转钻头以及用于形成这种钻头的方法

    公开(公告)号：US07784567B2

    公开(公告)日：2010-08-31

    申请号：US11593437

    申请日：2006-11-06

    申请人： Heeman Choe ,  John H. Stevens ,  James L. Overstreet ,  James C. Westhoff ,  Jimmy W. Eason

    发明人： Heeman Choe ,  John H. Stevens ,  James L. Overstreet ,  James C. Westhoff ,  Jimmy W. Eason

    IPC分类号： E21B1/54

    CPC分类号： E21B10/00 ,  B22F7/062 ,  B22F7/08 ,  B22F2005/002 ,  B22F2998/10 ,  C22C1/051 ,  C22C14/00 ,  C22C29/005 ,  C22C32/0047 ,  E21B10/567 ,  B22F3/04 ,  B22F3/162

    摘要： Earth-boring rotary drill bits include bit bodies comprising a composite material including a plurality of hard phase regions or particles dispersed throughout a titanium or titanium-based alloy matrix material. The bits further include a cutting structure disposed on a face of the bit body. In some embodiments, the bit bodies may include a plurality of regions having differing material compositions. For example, the bit bodies may include a first region comprising a plurality of hard phase regions or particles dispersed throughout a titanium or titanium-based alloy matrix material, and a second region comprising a titanium or a titanium-based alloy material. Methods for forming such drill bits include at least partially sintering a plurality of hard particles and a plurality of particles comprising titanium or a titanium-based alloy material to form a bit body comprising a particle-matrix composite material. A shank may be attached directly to the bit body.

    摘要翻译： 钻孔旋转钻头包括钻头体，其包括复合材料，所述复合材料包括分散在整个钛或钛基合金基体材料中的多个硬质相区域或颗粒。 钻头还包括设置在钻头体的表面上的切割结构。 在一些实施例中，钻头体可以包括具有不同材料组成的多个区域。 例如，钻头体可以包括包括分散在整个钛或钛基合金基体材料中的多个硬质相区域或颗粒的第一区域，以及包含钛或钛基合金材料的第二区域。 形成这种钻头的方法包括至少部分地烧结多个硬颗粒和多个包含钛或钛基合金材料的颗粒，以形成包含颗粒 - 基体复合材料的钻头体。 柄可以直接附接到钻头体上。

    METHODS OF FORMING EARTH-BORING TOOLS USING GEOMETRIC COMPENSATION AND TOOLS FORMED BY SUCH METHODS
    90.
    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。