| 发明名称 |
Jack-up rig for marine drilling |
| 摘要 |
This invention relates to a mobile drilling platform of the jack-up type equipped with a special system which allows the said drilling platform to work as a drilling derrick and alternatively as a hoisting crane rig for marine service.
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| 申请公布号 |
US4269542(A) |
申请公布日期 |
1981.05.26 |
| 申请号 |
US19790049297 |
申请日期 |
1979.06.18 |
| 申请人 |
PETROLEO BRASILEIRO S.A. - PETROBRAS |
发明人 |
MUELLER, SERGIO R. C. |
| 分类号 |
E02B17/00;E02B17/02;E02D7/16;E21B15/02;(IPC1-7):E02B17/00;B63B35/00 |
主分类号 |
E02B17/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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