Crude oil pipe having layers of graduated permeability to hydrogen sulfide
US4402346A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1982 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Sep 7, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1359
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe for transporting crude oil comprises a layer of polymeric material for containing oil within the bore of the pipe, the polymeric material being surrounded and supported by a reinforcement structure comprising high tensile reinforcement elements which are protected from corrosion by gases passing from the polymeric layer through the reinforcement structure. The reinforcement element may be provided with a protective sheath, for example of low permeability material or a material which possesses electrolytic action, or the reinforcement element may be embedded in a matrix of high permeability material such that a preferential path is provided for the passage of gases through the reinforcement structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.