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    SYSTEM AND METHOD FOR COUPLING AN IMPREGNATED DRILL BIT TO A WHIPSTOCK
    1.
    发明申请
    SYSTEM AND METHOD FOR COUPLING AN IMPREGNATED DRILL BIT TO A WHIPSTOCK 审中-公开
    用于将打入钻头的钻头连接在一起的系统和方法

    公开(公告)号：WO2012142543A3

    公开(公告)日：2013-03-14

    申请号：PCT/US2012033700

    申请日：2012-04-14

    Applicant: SMITH INTERNATIONAL ,  SWADI SHANTANU N ,  GREGUREK PHILIP M ,  NEVLUD KENNETH M ,  DEWEY CHARLES H ,  AZAR MICHAEL G

    Inventor： SWADI SHANTANU N ,  GREGUREK PHILIP M ,  NEVLUD KENNETH M ,  DEWEY CHARLES H ,  AZAR MICHAEL G

    IPC: E21B7/08 ,  E21B17/04

    CPC classification number: E21B7/061

    Abstract: A system and method to facilitate the drilling of one or more lateral wellbores while eliminating one or more trips downhole. The system utilizes a drilling assembly comprising an impregnated drill bit or other suitable drill bit. The impregnated drill bit is coupled to a whipstock by a connector for deployment downhole in a single trip. The connector comprises a separation device which facilitates disconnection of the impregnated drill bit from the whipstock once the whipstock is anchored at a desired downhole location.

    Abstract translation: 一种便于在一个或多个侧向井眼钻探同时消除一个或多个井下行程的系统和方法。 该系统利用包括浸渍钻头或其它合适钻头的钻孔组件。 浸渍的钻头通过用于在单次行程中井下部署的连接器联接到造斜器。 连接器包括分离装置，一旦将造斜器固定在所需的井下位置，便可将浸渍的钻头与造斜器断开连接。

    FIXED CUTTER BIT FOR DIRECTIONAL DRILLING APPLICATIONS
    4.
    发明申请
    FIXED CUTTER BIT FOR DIRECTIONAL DRILLING APPLICATIONS 审中-公开
    用于方向钻孔应用的固定切割刀头

    公开(公告)号：WO2010121116A2

    公开(公告)日：2010-10-21

    申请号：PCT/US2010031370

    申请日：2010-04-16

    Applicant: SMITH INTERNATIONAL ,  AZAR MICHAEL G

    Inventor： AZAR MICHAEL G

    IPC: E21B10/54

    CPC classification number: E21B10/43 ,  E21B10/55

    Abstract: A drill bit for drilling a borehole in earthen formations, the bit comprising: a bit body having a bit axis and a bit face including a cone region, a shoulder region, and a gage region; a first primary blade extending radially along the bit face from the cone region to the gage region; a plurality of cutter elements mounted to the first primary blade, wherein a first of the plurality of cutter elements has a planar cutting face and a second of the plurality of cutter elements has a convex cutting face; and wherein each cutting face is forward-facing.

    Abstract translation: 一种用于在土层中钻孔的钻头，所述钻头包括：具有钻头轴线的钻头体和包括锥形区域，台肩区域和计量区域的钻头面; 第一主叶片沿钻头面从锥形区域径向延伸到锥形区域; 多个切割元件安装在第一主叶片上，其中多个切割元件中的第一个具有平面切割面，多个切割元件中的第二切割元件具有凸形切割面; 并且其中每个切割面向前。

    FIXED CUTTER BIT WITH BACKUP CUTTER ELEMENTS ON SECONDARY BLADES
    5.
    发明申请
    FIXED CUTTER BIT WITH BACKUP CUTTER ELEMENTS ON SECONDARY BLADES 审中-公开
    固定切刀位于二次刀片上的备用切割器元件

    公开(公告)号：WO2009146078A1

    公开(公告)日：2009-12-03

    申请号：PCT/US2009/039154

    申请日：2009-04-01

    Applicant: SMITH INTERNATIONAL, INC. ,  DURAIRAJAN, Bala ,  HOFFMASTER, Carl, M. ,  AZAR, Michael, G. ,  BUSH, Kurt, T.

    Inventor： DURAIRAJAN, Bala ,  HOFFMASTER, Carl, M. ,  AZAR, Michael, G. ,  BUSH, Kurt, T.

    IPC: E21B10/42 ,  E21B10/43 ,  E21B10/60 ,  E21B10/55

    CPC classification number: E21B17/1092 ,  E21B10/43

    Abstract: In an embodiment, a drill bit for drilling a borehole comprises a bit body having a bit axis and a bit face. In addition, the drill bit comprises a primary blade extending radially along the bit face. Further, the drill bit comprises a plurality of primary cutter elements mounted to the primary blade. The primary blade is free of backup cutter elements. Still further, the drill bit comprises a secondary blade extending radially along the bit face. Moreover, the drill bit comprises a plurality of primary cutter elements mounted to the secondary blade. In addition, the drill bit comprises a first plurality of backup cutter elements mounted to the secondary blade in a first backup row that trails the primary row. Further, the drill bit comprises a second plurality of backup cutter elements mounted to the secondary blade in a second backup row that trails the first backup row.

    Abstract translation: 在一个实施例中，用于钻孔的钻头包括具有钻头轴线和钻头面的钻头体。 此外，钻头包括沿钻头面径向延伸的主刀片。 此外，钻头包括安装到主叶片的多个主切割器元件。 主刀片没有备用刀具元件。 此外，钻头包括沿着钻头面径向延伸的次级刀片。 此外，钻头包括安装到次级叶片的多个主切割器元件。 此外，钻头包括在第一备用行中安装到次级叶片上的第一多个备用切割器元件，该第一备用行跟踪主列。 此外，钻头包括在第二备用行中安装到次级叶片上的第二多个备用切割器元件，该第二备用行跟踪第一备用行。

    FIXED CUTTER BIT FOR DIRECTIONAL DRILLING APPLICATIONS
    6.
    发明申请
    FIXED CUTTER BIT FOR DIRECTIONAL DRILLING APPLICATIONS 审中-公开

    公开(公告)号：WO2010121116A3

    公开(公告)日：2010-10-21

    申请号：PCT/US2010/031370

    申请日：2010-04-16

    Applicant: SMITH INTERNATIONAL, INC. ,  AZAR, Michael, G.

    Inventor： AZAR, Michael, G.

    IPC: E21B10/54

    Abstract: A drill bit for drilling a borehole in earthen formations, the bit comprising: a bit body having a bit axis and a bit face including a cone region, a shoulder region, and a gage region; a first primary blade extending radially along the bit face from the cone region to the gage region; a plurality of cutter elements mounted to the first primary blade, wherein a first of the plurality of cutter elements has a planar cutting face and a second of the plurality of cutter elements has a convex cutting face; and wherein each cutting face is forward-facing.

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