| 发明名称 |
INTEGRATED CAST MATRIX SLEEVE API CONNECTION BIT BODY AND METHOD OF USING AND MANUFACTURING THE SAME |
| 摘要 |
A drill bit including a bit body and an upper portion, wherein the bit body and the upper portion are comprised of a matrix material, and wherein the upper portion includes a threaded connection comprised of a machineable matrix material is disclosed.
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| 申请公布号 |
US2011000718(A1) |
申请公布日期 |
2011.01.06 |
| 申请号 |
US20090497389 |
申请日期 |
2009.07.02 |
| 申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
BANKES STEVE;CHUNN GARY;RAY TOMMY GENE;VANTREESE DARRELL;SCHOLWINSKI KENNETH |
| 分类号 |
E21B10/54;B21K5/02;E21B10/00;E21B10/42 |
主分类号 |
E21B10/54 |
| 代理机构 |
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