Foams for GOR Control - Improved Stability by Polymer Additives

Abstract

Displacement tests in sandstone cores have been applied to quantify formation of foam and the gas blocking ability of water continuous foams with polymer additives. The different chemical properties of polymers and their interactions with surfactants made it intergisting to test both biopolymers and syrithetic polymers. Love mobility foams were generated both in Berea and reservoir core material with AOS based foams. The formation of foam with alphaolefinsulfonate surfactant was little influenced by polymer additives as indicated by similar foam properties throughout the core. The gas blocking ability of the foams was improved with polymer.