Viscoelastic surfactant composition having improved rheological properties and method of using for treating subterranean formations
US7244698B2 · kind B2 · utility
8Cited by
16References
41Claims
0Family size
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Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Apr 14, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A viscoelastic surfactant composition having improved rheological performance comprising one or more quaternized amidoamine surfactants, one or more tertiary amine amides, one or more polymeric acids and one or more electrolytes, viscosified aqueous fluids comprising the surfactant composition and methods of making and using the viscosified aqueous fluid for treating subterranean formations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.