Method of using ionic liquids to inhibit or prevent the swelling of clay
US8084402B2 · kind B2 · utility
6Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2007 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Apr 2, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An ionic liquid may be used to inhibit the swelling and/or disintegration of clay in a subterranean formation. A subterranean clay-containing formation may be treated with the ionic liquid by contacting the formation with a well treatment composition containing the ionic liquid dispersed or dissolved in a carrier fluid. Damage to the formation caused by contact with the well treating composition is reduced or substantially eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.