Methods and materials for wellbore fluid diversion using visco-elastic surfactants
US11959017B1 · kind B1 · utility
0Cited by
11References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 7, 2022 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Oct 7, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/86
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A diverter agent includes a morpholinium based zwitterionic surfactant having a sulfonate terminal moiety; and an ammonium based zwitterionic surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.