Tensioning a riser
US8657536B2 · kind B2 · utility
1Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Aug 10, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A riser tensioner system for tensioning a riser at an offshore vessel includes a frame adapted to affix to the vessel. An elongate riser joint is provided for coupling into the riser. The riser joint has an axial flange portion projecting laterally outward therefrom from and extending axially along a length of the riser joint. Ram pistons are arranged about the frame to couple to the riser and to support the riser in tension. Centralizer arms are arranged on the frame to extend into proximity to the flange portion of the riser joint when the riser joint is received through the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.