Method and apparatus for reducing tension variations in mono-column TLP systems
US6688250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Aug 6, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B2035/442
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A floating platform for recovery of oil and gas from offshore oil and gas fields supports one or more decks above the water surface to accommodate equipment for drilling and processing oil, gas and water recovered from the oil and gas field. The platform includes a central column having a portion substantially below the water surface, and including a portion which extends above the water surface. The central column includes a base node and a plurality of pontoons extending outwardly therefrom and is anchored to the seabed by one or more tendons secured to the pontoons and to the seabed. Ballast modules fixedly or removably secured to the base node and/or the pontoons accept solid or liquid ballast for lowering the vertical center of gravity of the platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.