Composition and method for reducing the surface tension of aqueous fluids
US4018689A · kind A · utility
30Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1976 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Jan 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/05
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The functioning of a perfluorinated compound corresponding to the formula ##STR1## wherein A.sup.- is Cl.sup.-, F.sup.- or Br.sup.-, preferably I.sup.-, to lower the surface tension of various aqueous based liquids (e.g. acids, spent acids, brines, water, etc.) and corresponding gelled liquids, when such fluids are employed in environments where they come in contact with earthen formations is improved by also incorporating into the liquid certain other water wetting surfactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.