Viscoelastic Surfactant Fluids and Related Methods of Use

Viscoelastic surfactant based aqueous fluid systems useful as thickening agents in various applications, e.g. to suspend particles produced during the excavation of geologic formations. The surfactants are zwitterionic/amphoteric surfactants such as dihydroxyl alkyl glycinate, alkyl ampho acetate or...

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Bibliographische Detailangaben
Hauptverfasser: NIU JOSEPH H. Y, DERIAN PAUL-JOEL, YANG JIANG, DINO DAVID, DAHAYANAKE MANILAL S, LI RUOXIN
Format: Patent
Sprache:eng
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Zusammenfassung:Viscoelastic surfactant based aqueous fluid systems useful as thickening agents in various applications, e.g. to suspend particles produced during the excavation of geologic formations. The surfactants are zwitterionic/amphoteric surfactants such as dihydroxyl alkyl glycinate, alkyl ampho acetate or propionate, alkyl betaine, alkyl amidopropyl betaine and alkylimino mono- or di-propionates derived from certain waxes, fats and oils. The thickening agent is used in conjunction with an inorganic water-soluble salt or organic additive such as phthalic acid, salicylic acid or their salts.