Patent ID: 8188015
Filing Date: 2012-05-29
Classification: C09K

Abstract:
1. A viscoelastic surfactant (VES) gelled subterranean formation treatment fluid comprising: water; at least one VES in an amount effective to increase the viscosity of the water; at least one internal breaker selected from the group consisting of bacteria, saponified fatty acids, mineral oils, hydrogenated polyalphaolefin oils, saturated fatty acids, unsaturated fatty acids, and combinations thereof; at least one fluid loss control agent; and at least one viscosity enhancer is selected from the group consisting of pyroelectric particles, piezoelectric particles, and mixtures thereof, where the viscosity enhancer has a particle size ranging between about 1 nanometer up to about 2 microns, and where the viscosity enhancer is present in an amount of from about 0.1 to about 500 pptg (about 0.012 to about 60 kg/m