Methods and compositions for sealing oil containing subterranean zones
US7026272B2 · kind B2 · utility
29Cited by
7References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | May 17, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M1/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides methods and compositions for sealing subterranean zones containing oil to prevent the uncontrolled flow of fluids into or from the zones. The compositions basically comprise water, a phosphonic acid ester, a multivalent metal ion releasing compound and an organophilic clay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.