CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE
摘要
<p>A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.</p>
申请公布号
WO2011017394(A4)
申请公布日期
2011.06.23
申请号
WO2010US44344
申请日期
2010.08.04
申请人
BAKER HUGHES INCORPORATED;GAVIA, DAVID;FELDERHOFF, FLOYD C.;ISBELL, MATTHEW R.;DOSTER, MICHAEL L.
发明人
GAVIA, DAVID;FELDERHOFF, FLOYD C.;ISBELL, MATTHEW R.;DOSTER, MICHAEL L.