Polymers for enhanced hydrocarbon recovery
US10040987B2 · kind B2 · utility
0Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2014 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/68
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention refers to the use of anionic water-soluble polymers being partially or totally neutralized with an organic counter-ion for oil filed application, especially tertiary oil recovery steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.