Composite support column assembly for offshore drilling and production platforms
US4821804A · kind A · utility
Inventor
Key dates
| Filing date | Apr 26, 1988 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Apr 26, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B2017/0086
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An offshore fixed platform support column assembly for deep water hydrocarbon development and production systems comprises an elongated cylindrical composite column which extends upward from a base assembly made up of a central cylindrical reinforced concrete caisson and one or more clusters of cylindrical reinforced concrete storage tanks to a point just below the sea surface. The column is made up of members having wound filament-resin composite cylindrical walls coupled end to end by coupling members which transmit tensile, bending and compressive loads between a platform structure supported at the upper end of the column assembly and the base assembly. The column members may include outer reinforced plastic shells forming buoyancy chambers which are filled with an expanded foam plastic buoyancy material. The column members may include reinforced concrete inner cylinder liners for transferring the static weight of the platform assembly to the seabed through the assembly of the central caisson and the anchor members. In one embodiment the column assembly terminates at its upper end several hundred feet below the surface and is adapted to anchor a submersible vessel by anchor cabl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.