Arrangement in a pipeline transportation system
US5256844A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jan 2, 1991 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Jan 2, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L53/34
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a transportation pipe or conduit (10, 20, 30) which preferably is adapted to be installed on the seabed between a permanent or floating off-shore platform (3) and an on-shore terminal (4). The transportation conduit comprises an inner tube or pipe (21, 31) which primarily is constructed for the transmission of gas and/or oil or similar, a plurality of elements (23, 33) provided preferably as a layer outside the pipe (21, 31) and being adapted for transmission of preferably electric power. The elements (23, 33) which preferably might be made of copper or another material of appropriate electric conductivity, is insulated against the outer environment, for example by means of an appropriate thermal insulation material (24, 34). The inner tube (21, 31) might be manufactured from steel or a flexible material of considerable strength, and be surrounded by a corrosion preventing layer (22, 32). Some of the elements to be used for electric power transmission might be provided with a sufficient electric insulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.