Reamer wing with balanced cutting loads
    2.
    发明授权
    Reamer wing with balanced cutting loads 失效
    铰刀翼具有平衡的切割载荷

    公开(公告)号:US5495899A

    公开(公告)日:1996-03-05

    申请号:US431269

    申请日:1995-04-28

    IPC分类号: E21B10/26 E21B10/46 E21C25/10

    CPC分类号: E21B10/26

    摘要: A multi-bladed reaming apparatus for enlarging a subterranean borehole, the apparatus having a tubular body with a plurality of longitudinally-extending, circumferentially-spaced, generally radially-extending blades carrying cutting elements, the blades being unequally spaced about the body. The cutting depth of the cutting elements on at least one of the blades is adjusted to modify the distribution of the depth of cut (DOC) among the cutting elements to substantially equalize the volume of formation material removed by the blades. Wear is reduced and the potential for premature failure of cutting elements on any single blade is alleviated.

    摘要翻译: 一种用于扩大地下钻孔的多叶片扩孔装置,该装置具有管状主体,该管状主体具有多个纵向延伸的周向隔开的,大致径向延伸的叶片,其承载切割元件,所述叶片围绕主体不相等。 调节至少一个叶片上的切割元件的切割深度以改变切割元件之间的切割深度(DOC)的分布,以基本上均衡由叶片去除的成形材料的体积。 磨损减少,任何单个刀片上切割元件过早失效的可能性得到缓解。