Process for isolating aqueous brine layers in underground gas-storage caverns
US3949559A · kind A · utility
7Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 12, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Sep 12, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/28
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Process for isolating aqueous brine layers in underground gas-storage caverns which comprises injecting into the said cavern a liquid polyurethane-resin-forming composition that is hardenable by reaction with water which, upon hardening, forms a resinous barrier between the brine and the gas-storage space thereabove that is essentially impervious to water vapor. The liquid hardenable polyurethane-resin-forming composition comprises a polyol and a polyisocyanate of an aromatic hydrocarbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.