Altering wettability in subterranean formations
US11078406B2 · kind B2 · utility
10Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of altering wettability of a subterranean formation penetrated by a well is described. A first oxidizer including a persulfate is introduced to the subterranean formation. A second oxidizer including a bromate is introduced to the subterranean formation. The well is shut in for a period of time to allow the first oxidizer and the second oxidizer to alter the wettability of the subterranean formation toward non-wetting of oil and of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.