Gelled aqueous composition for oil extraction
US11548956B2 · kind B2 · utility
0Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2019 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Apr 19, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2438/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the field of oil extraction. More specifically, it relates to a particular polymerization process, which provides access to formulations of polymers that may be used in particular for modifying rheology and fluid loss control during extraction operations and that have a better heat stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.