发明名称 IMPREGNATED CUTTING ELEMENTS WITH LARGE ABRASIVE CUTTING MEDIA AND METHODS OF MAKING AND USING THE SAME
摘要 Implementations of the present invention include impregnated drill bits having a plurality of relatively large abrasive cutting media, such as polycrystalline diamonds, embedded therein. According to some implementations of the present invention, the relatively large abrasive cutting media can be dispersed in an unorganized arrangement throughout at least a portion of the crown. Additionally, one or more implementations can include a second plurality of relatively small abrasive cutting media. Implementations of the present invention also include drilling systems including impregnated drill bits having a plurality of relatively large abrasive cutting media embedded therein, methods of using such impregnated drill bits, and methods of forming such impregnated drill bits.
申请公布号 WO2011037948(A2) 申请公布日期 2011.03.31
申请号 WO2010US49742 申请日期 2010.09.22
申请人 LONGYEAR TM, INC.;LAMBERT, CHRISTIAN, M.;RUPP, MICHAEL, D. 发明人 LAMBERT, CHRISTIAN, M.;RUPP, MICHAEL, D.
分类号 E21B10/48;E21B10/02 主分类号 E21B10/48
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