| 发明名称 |
Cutting means for drag drill bits |
| 摘要 |
A rotary drill bit (10) having a plurality of diamond cutting elements (48) each having a cutting face (60) with a discharge nozzle (64) therein. The discharge nozzle (64) directs the flow of drilling fluid away from the cutting face (60) and is surrounded by the cutting face (60).
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| 申请公布号 |
US4606418(A) |
申请公布日期 |
1986.08.19 |
| 申请号 |
US19850759459 |
申请日期 |
1985.07.26 |
| 申请人 |
REED TOOL COMPANY |
发明人 |
THOMPSON, CHARLES M. |
| 分类号 |
E21B10/56;E21B10/567;E21B10/60;E21B10/61;(IPC1-7):E21B10/56 |
主分类号 |
E21B10/56 |
| 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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