Pipeline secondary containment system and method
US5176025A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Feb 19, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L2201/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipeline system with a localized environment for preventing, detecting, and containing leakage from a subterranean pipeline transporting hydrocarbon liquids and gases is disclosed. A steel pipe is enclosed in a sleeve of high density polyethylene and overlaid with a layer of geotextile material. Positioned in the interstitial space between the pipe and sleeve is a layer of geotextile material impregnated with hydrated lime which dissolves in the presence of water to create a highly alkaline solution to protect the pipe. Also positioned adjacent the inner layer are leak sensors/monitors for detection of leaks of hydrocarbon fluids and aqueous solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.