Abstract

A new and easy-to-prepare, surfactant-based polymer-free fluid, CTAB-SA, consists of etradecyl trimethyl ammonium bromide, cetyl trimethyl ammonium bromide and octadecyl trimethyl ammonium bromide with salicylic acid is described. The properties as a fracturing fluid were evaluated with regard to viscoelasticity and proppant carrying capability. The results showed that these water gels have strong proppant-carrying capacity and high viscoelasticity, and the best performance was obtained from the gels derived from octadecyl trimethyl ammonium bromide with salicylic acid. The viscoelasticity of these gels were increase with the quality ratio of ammonium bromide to acid.

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