EARTH-BORING TOOLS AND METHODS OF FORMING SUCH EARTH-BORING TOOLS
摘要
<p>Earth-boring drill bits comprise a bit body having a plurality of radially extending blades and a plurality of cutting elements attached to the plurality of radially extending blades. Only gouging cutting elements are attached to at least one blade of the plurality of radially extending blades. Only shearing cutting elements are attached to at least another blade of the plurality of radially extending blades. Only shearing cutting elements are attached to a number of blades of the plurality of radially extending blades that is different from a number of blades of the plurality of radially extending blades to which only gouging cutting elements are attached. Methods of forming an earth-boring drill bit comprise forming a bit body including a plurality of radially extending blades. Only shearing cutting elements are attached to a number of blades different from a number of blades to which only gouging cutting elements are attached.</p>
申请公布号
CA2834505(A1)
申请公布日期
2012.11.08
申请号
CA20122834505
申请日期
2012.04.20
申请人
BAKER HUGHES INCOPRORATED
发明人
GAVIA, DAVID;LYONS, NICHOLAS J.;BILEN, JUAN MIGUEL;SCOTT, DANNY E.;PESSIER, RUDOLF CARL