Hydrolyzable compounds for treatment of a subterranean formation and methods of using the same
US9994761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2013 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Sep 4, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to hydrolyzable compounds for treatment of a subterranean formation and methods of using the same. In various embodiments, the present invention provides a method of treating a subterranean formation including obtaining or providing a composition comprising a hydrolyzable compound comprising at least one of an ester and an anhydride. The method can include placing the composition in a subterranean formation, and at least partially hydrolyzing the hydrolyzable compound to reduce the pH downhole. In various embodiments, the subterranean formation can include a crosslinked gel, and the method can include at least partially breaking the crosslinked gel to provide a broken gel. The method can include at least partially removing the broken gel from the subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.