REVERSE CIRCULATION HAMMER SPLINE ARRANGEMENT IMPROVEMENTS
    1.
    发明申请
    REVERSE CIRCULATION HAMMER SPLINE ARRANGEMENT IMPROVEMENTS 审中-公开
    反向循环HAMMER线安排改进

    公开(公告)号:US20140311807A1

    公开(公告)日:2014-10-23

    申请号:US14353503

    申请日:2012-10-26

    IPC分类号: E21B6/02

    摘要: A down-the-hole hammer drill that delivers fluid to a cutting face has particular application, but not limited, to a reverse-circulation (RC) down-hole face sampling hammer drill is tailored to the design of the cutting face to improve flushing of the cutting face. An associated drill bit and drive sub are also disclosed.

    摘要翻译: 将流体输送到切割面的钻孔锤钻具有特别的应用,但不限于反向循环(RC)井下采样锤钻,适合切割面的设计,以改善冲洗 的切面。 还公开了相关联的钻头和驱动副。