Multipurpose aqueous foamer
US4796702A · kind A · utility
50Cited by
12References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Sep 4, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/07
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides a surfactant mixture, comprising a zwitterionic surfactant, a nonionic surfactant and a cationic surfactant, which forms a foamable liquid composition upon addition to aqueous media including fresh water, brines, acids and water/alcohol mixtures. The foams prepared from the foamable liquid composition have utility as fracturing fluids and well cleaning fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.