Earth-boring tools including an impact material and methods of drilling through casing
    1.
    发明授权
    Earth-boring tools including an impact material and methods of drilling through casing 有权
    钻孔工具包括冲击材料和通过套管钻孔的方法

    公开(公告)号:US08479846B2

    公开(公告)日:2013-07-09

    申请号:US12499968

    申请日:2009-07-09

    IPC分类号: E21B10/36

    CPC分类号: E21B29/06 E21B10/43

    摘要: Earth-boring tools comprise a face and a plurality of cutting elements disposed on at least a portion of the face. An impact material is positioned on at least one portion of a body and has a relative exposure equal to or greater than at least some of the cutting elements of the plurality of cutting elements. The impact material comprises a material having a lower abrasion resistance than the body. Methods of making and methods of using such earth-boring tools.

    摘要翻译: 钻孔工具包括设置在面部的至少一部分上的面和多个切割元件。 冲击材料定位在主体的至少一部分上,并具有等于或大于多个切割元件中的至少一些切割元件的相对曝光。 冲击材料包括具有比主体更低的耐磨性的材料。 制作方法和使用这种钻孔工具的方法。