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    CONVEX RIDGE TYPE NON-PLANAR CUTTING TOOTH AND DIAMOND DRILL BIT
    2.
    发明申请
    CONVEX RIDGE TYPE NON-PLANAR CUTTING TOOTH AND DIAMOND DRILL BIT 审中-公开
    CONVEX RIDGE型非平面切割牙齿和钻石钻头

    公开(公告)号：US20170058615A1

    公开(公告)日：2017-03-02

    申请号：US15248501

    申请日：2016-08-26

    申请人： CNPC USA CORPORATION

    发明人： Zhao Liang ,  Cheng Xiaomin ,  Demin Chen ,  Xiongwen Yang ,  Yonghong Wang ,  Yu Liu

    IPC分类号： E21B10/567 ,  E21B10/60

    CPC分类号： E21B10/5673

    摘要： The present invention provides a convex ridge type non-planar cutting tooth and a diamond drill bit, the convex ridge type non-planar cutting tooth comprises a cylindrical body, the surface of the end portion of the cylindrical body is provided with a main cutting convex ridge and two non-cutting convex ridges, the inner end of the main cutting convex ridge and the inner ends of the two non-cutting convex ridges converge at the surface of the end portion of the cylindrical body, the outer end of the main cutting convex ridge and the outer ends of the two non-cutting convex ridges extend to the outer edge of the surface of the end portion of the cylindrical body, the surfaces of the end portion of the cylindrical body on both sides of the main cutting convex ridge are cutting bevels. The convex ridge type non-planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled formation, convex ridge type non-planar cutting teeth are arranged on the drill bit with different mode, which can improve the mechanical speed and footage of the drill bit.

    摘要翻译： 本发明提供一种凸脊型非平面切割齿和金刚石钻头，所述凸脊型非平面切割齿包括圆柱体，所述圆柱体的端部的表面设置有主切割凸起 脊和两个非切割凸脊，主切割凸脊的内端和两个非切割凸脊的内端在圆柱体的端部的表面处会聚，主切割的外端 两个非切割凸脊的外端部延伸到圆筒体的端部的表面的外缘，主切割凸脊的两侧的圆筒体的端部的表面 正在切割斜面。 凸脊式非平面切削齿和金刚石钻头具有很好的抗冲击和耐滚珠的能力。 根据钻孔成形的特点，不同模式的钻头上设置凸脊型非平面切割齿，可提高钻头的机械速度和镜头。