| 发明名称 |
DRILL BIT AND DRILLING SYSTEM |
| 摘要 |
<p>A drill bit is provided, which comprises a cutter structure, at least one opening in the drill bit for removal of cuttings from the cutter structure, and at least two transport screws arranged in connection to the opening for transporting cuttings into the opening and further to a location remote from the drill bit.</p> |
| 申请公布号 |
WO2015121273(A1) |
申请公布日期 |
2015.08.20 |
| 申请号 |
WO2015EP52810 |
申请日期 |
2015.02.11 |
| 申请人 |
BADGER EXPLORER ASA |
发明人 |
LARSEN, ØYSTEIN;SIKANETA, SAKALIMA GEORGE;SOLLIED, OLE MARIUS |
| 分类号 |
E21D9/06;E21B7/00;E21B10/00 |
主分类号 |
E21D9/06 |
| 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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