发明名称 Stabilizing members for fixed cutter drill bit
摘要 <p>A drill bit for drilling a borehole in an earthen formation. In an embodiment, the bit comprises a first blade having a cutter-supporting surface. In addition, the bit comprises a plurality of primary cutter elements with cutting faces mounted to the cutter-supporting surface. The cutting profiles of the cutting faces define an outermost cutting profile Po in rotated profile view. Further, the bit comprises a stabilizing member having an end distal the cutter-supporting surface. The end includes a tip. The tip is offset from the outermost cutting profile Po in rotated profile view.</p>
申请公布号 GB2484611(A) 申请公布日期 2012.04.18
申请号 GB20110022014 申请日期 2010.07.01
申请人 SMITH INTERNATIONAL, INC. 发明人 BALA DURAIRAJAN;DWAYNE P TERRACINA
分类号 E21B10/55 主分类号 E21B10/55
代理机构 代理人
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