Tension leg platform tendon installation by deep catenary tow
US4810133A · kind A · utility
8Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1987 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Sep 30, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B2021/505
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Tendon segments are fabricated on a laybarge, then temporarily stored on seabottom. When a tension leg platform is moored, two tow vessels pick up one end each of the finished tendon and tow it to deep water, with the tendon in a catenary shape. Upon arrival in deep water, one end of the tendon is released and allowed to free fall to its uprighted position. A special work boat then transfers the tendon to the tension leg platform for final installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.