Impact of tailored water chemistry aqueous ions on foam stability enhancement

Abstract Generating strong and stable foam is necessary to achieve in-depth conformance control in the reservoir. Besides other parameters, chemistry of injection water can significantly impact generation stabilization. The tailored was found have good potential improve stability. objective this study extensively evaluate effect different aqueous ions selected formulations on Bulk dynamic experiments were used For bulk tests, stability foams generated using three surfactants analyzed bottle tests. experiments, tests conducted a microfluidic device. results clearly demonstrated that ionic content solutions affect revealed stabilization than porous media. Depending surfactant type, divalent stronger influence when compared monovalent ions. pointed out containing calcium chloride salt (CaCl 2 ) showed longer life with anionic very weak nonionic surfactant. magnesium (MgCl CaCl salts displayed higher comparison sodium (NaCl) amphoteric alkyl amine Less comprising both In model, MgCl resistance gas flow subsequently mobility reduction factor for those produced NaCl salts. This experimental focusing about role could help better understanding process. new knowledge gained also enable selection optimization right suitable chemicals field applications.