DUALFUNKTIONSADDITIVE ZUR VERBESSERUNG DER FLUID- LOSS-KONTROLLE UND ZUR STABILISIERUNG VON VISKOELASTISCHEN TENSIDFLÜSSIGKEITEN

Dual-function additives that enhance fluid loss control and the stability of viscoelastic surfactant fluids, and their associated methods of use in subterranean formations, are described. In one embodiment, the methods comprise: providing a viscoelastic surfactant fluid that comprises an aqueous base fluid, a viscoelastic surfactant, and a dual-function additive that comprises a soap component; and introducing the viscoelastic surfactant fluid into at least a portion of a subterranean formation.