Water-based foaming composition-method for making same
US6172010A · kind A · utility
72Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1998 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Sep 22, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a water based foaming composition and the method of making it. The composition is optimized in that it contains a surfactant specifically selected according to the polymer also present in the composition. The surfactant and the polymer are selected so that they are oppositely charged. The invention is very useful in drilling or treating wells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.