Compositions and methods for reducing the viscosity of a fluid
US7276466B2 · kind B2 · utility
28Cited by
138References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Apr 12, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/90
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to improved methods and compositions for reducing the viscosity of subterranean servicing fluids where the servicing fluid has been cross-linked to increase its viscosity and that crosslinking can be reversed using a delayed release acid produced to reduce the fluid's pH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.