Compositions for oil recovery and methods of their use
US8973668B2 · kind B2 · utility
19Cited by
22References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2014 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO2-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.