Tension leg platform system
US4421436A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1982 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Jul 6, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2015/005
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tension leg platform system for use in drilling wellbores into the floor of an offshore body of water. Included in the system is a buoyancy control vessel having a plurality of pull down cables attached thereto which extend to the ocean floor. A plurality of spaced apart anchors disposed at the ocean floor are positioned to receive the lower ends of the respective pull down cables. A submergible hull slidably engages the respective hold down cables such that the hull can be controllably lowered to the ocean floor whereby a canopy carried on the hull will cover an uncontrollably flowing well to conduct the effluent to the water's surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.