Patent ID: 7857051
Filing Date: 2010-12-28
Classification: C09K,Y10S

Abstract:
1. A method of treating a subterranean formation penetrated by a wellbore comprising a formation surface comprising a) injecting into the formation through the formation surface a fluid comprising a viscoelastic surfactant and a solid additive comprising particles sufficiently small to pass into the formation pores, said solid additive comprising a material degradable in the formation, wherein the particles comprise a material selected from the group consisting of waxes, polycarbonates, polyacetals, polymelamines, polyvinyl chlorides, polyvinyl acetates, polyvinyl esters, polyacrylates, polymethacrylates, polycarboxylates, and mixtures thereof, and b) allowing said additive to degrade into a material soluble in a fluid in the pores after the injection.