Fluid-loss control pills comprising breakers that comprise orthoesters and/or poly(orthoesters) and methods of use
US7795186B2 · kind B2 · utility
8Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2009 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Jun 22, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/514
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided herein are methods and compositions for generating acids for use downhole, for example, to break fluid-loss control pills. The delayed-release acid breakers of the present invention comprise orthoesters and/or poly(orthoesters).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.