| 发明名称 |
Multi-activity offshore exploration and/or development drilling method and apparatus |
| 摘要 |
<p>A multi-activity drillship (30) apparatus having a single derrick (40) and multiple tubular activity stations within the derrick (40) wherein primary drilling activity may be conducted from the derrick (40) and simultaneously auxiliary drilling activity may be conducted from the same derrick (40) to reduce the length of the primary drilling activity critical path. <IMAGE></p> |
| 申请公布号 |
EP1148206(A2) |
申请公布日期 |
2001.10.24 |
| 申请号 |
EP20010114469 |
申请日期 |
1997.01.27 |
| 申请人 |
TRANSOCEAN SEDCO FOREX INC. |
发明人 |
SCOTT, ROBERT J.;HERRMANN, ROBERT P.;RAY, DONALD R. |
| 分类号 |
B63B35/00;B63B35/44;E21B7/12;E21B15/02;E21B19/00;(IPC1-7):E21B15/02;E21B15/00;E21B7/128 |
主分类号 |
B63B35/00 |
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