Offshore oil well installation |
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| 申请号 | US56933256 | 申请日 | 1956-03-05 | 公开(公告)号 | US2854215A | 公开(公告)日 | 1958-09-30 |
| 申请人 | SHELL DEV; | 发明人 | COX JR WILLIAM R; HOWE RICHARD J; | ||||
| 摘要 | |||||||
| 权利要求 | 1. AN UNDERWATER WELL INSTALLATION COMPRISING IN COMBINATION A WELL CASING EXTENDING INTO THE OCEAN FLOOR, A WELL-HEAD ASSEMBLY MOUNTED ON THE TOP OF SAID CASING AT A LEVEL BELOW THE SURFACE OF THE WATER AND ABOVE THE OCEAN FLOOR, A LARGE DIAMETER GUIDE PIPE SURROUNDING SAID CASING, THE LOWER END OF SAID GUIDE PIPE BEING POSITIONED IN SAID |
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| 说明书全文 | |||||||
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