发明名称 |
DRILL BIT FOR USE IN DRILLING SUBTERRANEAN FORMATIONS |
摘要 |
A drill bit for drilling subterranean formations comprising a drill bit body including a group of primary cutting elements comprising a first primary cutting element and a second primary cutting element radially spaced apart from each other along a first radial axis. The drill bit body further including a group of backup cutting elements comprising a first backup cutting element in a secondary cutting position relative to the first primary cutting element and a second backup cutting element in secondary cutting positions relative to the second primary cutting element, wherein the first and second backup cutting elements are radially spaced apart from each other along a second radial axis different than the first radial axis and comprise a difference in cutting characteristic relative to each other of one of a backrake angle and a siderake angle.
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申请公布号 |
US2010326742(A1) |
申请公布日期 |
2010.12.30 |
申请号 |
US20100817411 |
申请日期 |
2010.06.17 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
VEMPATI CHAITANYA K.;OLDHAM JACK THOMAS;REEK EDWIN E.;FUSELIER DANIELLE M.;PATEL SURESH G.;LAING ROBERT |
分类号 |
E21B10/43 |
主分类号 |
E21B10/43 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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