Roller cone drill bit, method of designing the same and rotary drilling system |
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| 申请号 | EP03021139.5 | 申请日 | 1999-08-31 | 公开(公告)号 | EP1371811A3 | 公开(公告)日 | 2004-01-02 |
| 申请人 | Halliburton Energy Services, Inc.; | 发明人 | Chen, Shilin; | ||||
| 摘要 | A method of designing a roller cone bit is disclosed. The method comprises the steps of: calculating the trajectory of at least one tooth on each cone through formation material at the cutting face; and jointly optimising both the orientations of said teeth and the width of uncut rings on said cutting face, in dependence on said trajectory. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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