Reinforced submarine pipeline and assembly of two coaxial pipelines comprising same
US7523766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2002 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Aug 4, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L9/045
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a reinforced undersea unit pipe element (1) suitable for being laid empty at great depth. The element includes a tubular wall, having at least one external peripheral reinforcing element (6, 7) creating a plurality of localized zones on the outside surface of the wall, the radial distance (d1) between the outside surface of the pipe and the longitudinal axis (XX′) of the wall in the zones being greater than the outside radius (R) of the tubular wall portions lying between the successive zones in the longitudinal direction (XX′), two successive ones of the zones being spaced apart in the longitudinal direction (XX′) of the tubular wall by a distance (D) equal to ½ to 4 times the outside diameter (d) of the tubular wall portions, the successive zones preferably being spaced apart regularly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.