Method for inhibiting reactive argillaceous formations and use thereof in a drilling fluid
US5728653A · kind A · utility
41Cited by
10References
10Claims
0Family size
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Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method of stabilizing argillaceous rocks containing reactive clays in the presence of water, wherein said argillaceous rocks are placed in contact with an aqueous solution containing a polymer with hydrophilic groups and hydrophobic groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.