Seafloor-surface connecting installation of a submarine pipeline installed at great depth
US7404695B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2002 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Apr 20, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L1/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention concerns a seafloor-surface connecting installation for a submarine pipeline (10) set on the seafloor, in particular at great depth, of the hybrid-tower type comprising a static base (13-18) set on the seabed. In the inventive installation: 1) said vertical riser includes a terminal pipe portion (51), and a flexible joint (19) which allows angular movements (α) of the upper part (52) relative to said terminal pipe portion (51); and 2) the terminal part (11) of said pipe resting on the seabed has a an elbow-type terminal curvature; 3) said terminal portion (51) of the vertical riser is connected to said terminal curvature (11) by a single connecting element; and 4) said base plate (13-18) rigidly maintains in fixed vertical position and linked to each other via said connecting element (12): said terminal pipe portion (51) and said elbow-type terminal curvature (12) the latter facing upwards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.