发明名称 |
Cutting element arrangement for single roller cone bit |
摘要 |
A cutting element arrangement for a single roller cone bit includes both at least one substantially non-planar cutting element and at least one substantially planar cutting element. The substantially non-planar cutting element is disposed on an inner row of the single roller cone and the substantially planar cutting element is disposed on an outer row of the single roller cone. With such an arrangement, the substantially non-planar inner row cutting elements effectively penetrate formations while the substantially planar outer row cutting elements maintain bore hole gage.
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申请公布号 |
US2005109543(A1) |
申请公布日期 |
2005.05.26 |
申请号 |
US20040871605 |
申请日期 |
2004.06.18 |
申请人 |
WITMAN GEORGE;WILSON PETER;BUTLAND RICHARD;BELNAP DAN;HERMAN JOHN;BIRNE-BROWNE RONALD;NESE PER;LOISELLE LOUIS |
发明人 |
WITMAN GEORGE;WILSON PETER;BUTLAND RICHARD;BELNAP DAN;HERMAN JOHN;BIRNE-BROWNE RONALD;NESE PER;LOISELLE LOUIS |
分类号 |
E21B10/16;(IPC1-7):E21B10/08 |
主分类号 |
E21B10/16 |
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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