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    METHODS OF FORMING AT LEAST A PORTION OF EARTH-BORING TOOLS
    1.
    发明公开
    METHODS OF FORMING AT LEAST A PORTION OF EARTH-BORING TOOLS 审中-公开
    法形成至少ERDBOHRWERKZEUGS的一部分

    公开(公告)号：EP2571646A4

    公开(公告)日：2016-10-05

    申请号：EP11784259

    申请日：2011-05-19

    Applicant: BAKER HUGHES INC

    Inventor： STEVENS JOHN H ,  EASON JIMMY W

    IPC: B22D19/06 ,  B22D19/14 ,  B22D19/16 ,  C22C1/02 ,  C22C1/10 ,  C22F1/10

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

    Abstract: 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 include 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.

    CARBURIZED MONOTUNGSTEN AND DITUNGSTEN CARBIDE EUTECTIC PARTICLES, MATERIALS AND EARTH-BORING TOOLS INCLUDING SUCH PARTICLES, AND METHODS OF FORMING SUCH PARTICLES, MATERIALS, AND TOOLS
    4.
    发明申请
    CARBURIZED MONOTUNGSTEN AND DITUNGSTEN CARBIDE EUTECTIC PARTICLES, MATERIALS AND EARTH-BORING TOOLS INCLUDING SUCH PARTICLES, AND METHODS OF FORMING SUCH PARTICLES, MATERIALS, AND TOOLS 审中-公开
    渗碳的单钨和碳化钨共晶颗粒，材料和包括这种颗粒的镗土工具，以及形成这种颗粒，材料和工具的方法

    公开(公告)号：WO2010056476A3

    公开(公告)日：2010-07-29

    申请号：PCT/US2009061636

    申请日：2009-10-22

    Applicant: BAKER HUGHES INC ,  EASON JIMMY W ,  OVERSTREET JAMES L ,  STEVENS JOHN H

    Inventor： EASON JIMMY W ,  OVERSTREET JAMES L ,  STEVENS JOHN H

    IPC: C01B32/949 ,  B22F3/12 ,  E21B10/00

    CPC classification number: C22C1/1005 ,  B22F2005/001 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  E21B10/00 ,  E21B10/46 ,  B22F3/26 ,  B22F7/06 ,  C22C29/08 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/30 ,  B22F2207/07 ,  B22F2202/15

    Abstract: Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of at least partially carburized monotungsten carbide and ditungsten carbide eutectic particles dispersed throughout a matrix material. In some embodiments, the particles are at least substantially fully carburized monotungsten carbide and ditungsten carbide eutectic particles. In further embodiments, the particles are generally spherical or at least substantially spherical. Methods of forming such particles include exposing a plurality of monotungsten carbide and ditungsten carbide eutectic particles to a gas containing carbon. Methods of manufacturing such tools include providing a plurality of at least partially carburized monotungsten carbide and ditungsten carbide eutectic particles or at least substantially completely carburized monotungsten carbide and ditungsten carbide eutectic particles within a matrix material.

    Abstract translation: 钻地下地层的钻地工具包括颗粒基质复合材料，该颗粒基质复合材料包含多个分散在整个基体材料中的至少部分渗碳的碳化钨和碳化钨共晶颗粒。 在一些实施例中，颗粒至少基本上完全渗碳碳化一碳化钨和碳化二钨共晶颗粒。 在进一步的实施方案中，颗粒通常为球形或至少基本球形。 形成这种颗粒的方法包括将多个碳化钨和碳化钨共晶颗粒暴露于含碳气体。 制造这种工具的方法包括在基体材料内提供多个至少部分渗碳的碳化钨和碳化钨共晶颗粒或至少基本完全渗碳的碳化钨和碳化钨共晶颗粒。

    DISPLACEMENT MEMBERS AND METHODS OF USING SUCH DISPLACEMENT MEMBERS TO FORM BIT BODIES OF EARTH BORING ROTARY DRILLS BITS
    6.
    发明申请
    DISPLACEMENT MEMBERS AND METHODS OF USING SUCH DISPLACEMENT MEMBERS TO FORM BIT BODIES OF EARTH BORING ROTARY DRILLS BITS 审中-公开
    位移元件和使用这种位移元件形成土壤钻孔旋转钻头钻头体的方法

    公开(公告)号：WO2008073308B1

    公开(公告)日：2008-09-25

    申请号：PCT/US2007025099

    申请日：2007-12-07

    Applicant: BAKER HUGHES INC ,  SMITH REDD H ,  STEVENS JOHN H

    Inventor： SMITH REDD H ,  STEVENS JOHN H

    IPC: B22F7/00 ,  B22F3/12 ,  E21B10/00 ,  E21B10/55

    CPC classification number: E21B10/55 ,  B22F2998/00 ,  C22C1/1036 ,  C22C2204/00 ,  E21B10/00 ,  C22C29/08

    Abstract: Displacement members (68,100,110,120,124) 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 eai-th-boring rotary drill, bits include positioning such a displacement member in a mold (62,150) 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.

    Abstract translation: 用于形成钻地旋转钻头的钻头本体的移位构件（68,100,110,120,124）包括具有外表面的本体，该外表面的至少一部分构造成限定钻头本体的至少一个表面作为钻头本体 围绕位移构件形成。 在一些实施例中，主体可以是中空的和/或多孔的。 用于形成钻进旋转钻头的方法包括将这样的位移构件定位在模具（62,150）中并且围绕模具中的位移构件形成钻头体。 另外的方法包括压制多个颗粒以形成本体，在本体中形成至少一个凹部，将这种位移部件定位在凹部中，并烧结本体以形成钻头本体。

    METHODS OF ATTACHING A SHANK TO A BODY OF AN EARTH BORING DRILLING TOOL, AND TOOLS FORMED BY SUCH METHODS
    9.
    发明申请
    METHODS OF ATTACHING A SHANK TO A BODY OF AN EARTH BORING DRILLING TOOL, AND TOOLS FORMED BY SUCH METHODS 审中-公开
    将挖土机安装到地钻钻具上的方法和由这些方法形成的工具

    公开(公告)号：WO2008073310B1

    公开(公告)日：2008-10-16

    申请号：PCT/US2007025102

    申请日：2007-12-07

    Applicant: BAKER HUGHES INC ,  SMITH REDD H ,  STEVENS JOHN H

    Inventor： SMITH REDD H ,  STEVENS JOHN H

    IPC: E21B10/42

    CPC classification number: E21B10/42 ,  E21B10/00

    Abstract: Earth-boring rotary drill bits including a bit body (44) attached to a shank (48). In some embodiments, the bit body and the shank may have abutting surfaces (54, 56) concentric to an interface axis (A1) offset relative to a longitudinal axis (L42) of the drill bit. In additional embodiments, the bit body and the shank may have generally frustoconical abutting surfaces (98, 100). Methods for attaching a shank and a bit body of an earth-boring rotary drill bit include abutting a surface of a shank against a surface of a bit body, and causing the abutting surfaces to be concentric to an axis that is offset or shifted relative to a longitudinal axis of the drill bit.

    Abstract translation: 包括钻头（44）的钻地旋转钻头，所述钻头附接到柄部（48）。 在一些实施例中，钻头本体和柄部可具有与界面轴线（A1）同心的相对于钻头的纵向轴线（L42）偏置的邻接表面（54,56）。 在另外的实施例中，钻头体和柄部可具有大致截头圆锥形的邻接表面（98,100）。 用于连接钻地旋转钻头的钻头和钻头体的方法包括将钻头的表面抵靠钻头体的表面，并且使得对接表面与相对于钻头轴线偏移或偏移的轴线同心 钻头的纵向轴线。

    DISPLACEMENT MEMBERS AND METHODS OF USING SUCH DISPLACEMENT MEMBERS TO FORM BIT BODIES OF EARTH BORING ROTARY DRILLS BITS
    10.
    发明申请
    DISPLACEMENT MEMBERS AND METHODS OF USING SUCH DISPLACEMENT MEMBERS TO FORM BIT BODIES OF EARTH BORING ROTARY DRILLS BITS 审中-公开
    位移成员和使用这样的位移成员的方法来形成地球转动旋转钻头的位置

    公开(公告)号：WO2008073308A3

    公开(公告)日：2008-07-31

    申请号：PCT/US2007025099

    申请日：2007-12-07

    Applicant: BAKER HUGHES INC ,  SMITH REDD H ,  STEVENS JOHN H

    Inventor： SMITH REDD H ,  STEVENS JOHN H

    IPC: B22F7/00 ,  B22F3/12 ,  E21B10/00 ,  E21B10/55

    CPC classification number: E21B10/55 ,  B22F2998/00 ,  C22C1/1036 ,  C22C2204/00 ,  E21B10/00 ,  C22C29/08

    Abstract: Displacement members (68,100,110,120,124) 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 eai-th-boring rotary drill, bits include positioning such a displacement member in a mold (62,150) 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.

    Abstract translation: 用于形成钻地旋转钻头的钻头体的位移构件（68,100,110,120,124）包括具有外表面的主体，其至少一部分构造成将钻头体的至少一个表面定义为钻头体 形成在位移构件周围。 在一些实施例中，主体可以是中空的和/或多孔的。 用于形成钻头旋转钻头的方法包括将这种位移构件定位在模具（62,150）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。

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