Agent for inhibiting the swelling of clays, compositions comprising said agent and methods implementing said agent
US9637681B2 · kind B2 · utility
2Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2013 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention concerns the use of a novel additive as an agent for inhibiting the swelling of clays, in particular in the field of boreholes. More specifically, the present invention concerns the use of a specific diamine and diacid salt as an agent for inhibiting the swelling of clays in an aqueous medium, and a drilling or hydraulic fracturing fluid composition comprising the salt according to the invention and methods for drilling or hydraulic fracturing implementing said salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.