Docking an offshore structure with a submerged fixture
US4109476A · kind A · utility
14Cited by
12References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 1977 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | May 20, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0039
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An offshore oil or gas recovery station is established by docking a jacket with a submerged wellhead and supporting a platform on the jacket above the water surface. The jacket is lowered upon the wellhead so that a guide collar on the jacket passes downwardly around the wellhead. Alignment pins on the guide collar are fully advanced by a diver so as to contact the wellhead and effect alignment between the wellhead and a conduit which is carried on the jacket by a temporary connection. The conduit is released and is lowered onto the wellhead for connection therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.