Viscoelastic surfactant composition having improved...

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...

Reexamination Certificate

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C510S490000, C510S499000, C510S477000, C510S434000

Reexamination Certificate

active

10903581

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.

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patent: WO 01/18147 (2001-03-01), None

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