System for tensioning risers by means of articulated grid
US5427180A · kind A · utility
18Cited by
4References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 20, 1994 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Apr 20, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Basically the system consists of a supporting structure (1) lying in an opening in floating vessel (9) to which a group of risers (3) is connected running from sea bottom to sea surface, linking undersea oil wells to their respective production trees (5) which lie on floating vessel (9), said supporting structure (1) being provided with ball joints that enable a group of risers (3) to articulate in relation to supporting structure (1), and slide blocks to enable said supporting structure to be connected/articulated to floating vessel (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.