发明名称 ROLLING CUTTER PLACEMENT ON PDC BITS
摘要 A cutting tool cutting tool may include a tool body having a plurality of blades extending radially therefrom; and a plurality of rotatable cutting elements mounted on at least one of the plurality of blades, wherein the plurality of rotatable cutting elements are mounted on the at least one blade in a nose and/or shoulder region of the cutting tool at a side rake angle ranging from about 10 to about 30 degrees or −10 to about −30 degrees
申请公布号 US2012132471(A1) 申请公布日期 2012.05.31
申请号 US201113303837 申请日期 2011.11.23
申请人 ZHANG YOUHE;AZAR MICHAEL;SMITH INTERNATIONAL, INC. 发明人 ZHANG YOUHE;AZAR MICHAEL
分类号 E21B10/08 主分类号 E21B10/08
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