Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance
US7279446B2 · kind B2 · utility
41Cited by
9References
11Claims
0Family size
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Key dates
| Filing date | Nov 14, 2005 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Nov 14, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of treating a subterranean formation by injecting down a well an aqueous fluid containing a viscoelastic surfactant fluid comprising an enhanced shear recovery agent wherein shear recovery time of the viscoelastic surfactant fluid is reduced by the addition of the enhanced shear recovery agent, and a viscoelastic surfactant fluid composition thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.