Abstract
Foam application in enhanced oil recovery (EOR) processes has been promoted primarily to address the mobility control issue during gas flooding which leads to poor sweep efficiency. Some critical factors such as foam stability and strength in porous media need to be addressed to ensure the effectiveness of foam flooding. In this research, a relatively new additive for foam stabilization composed of ionic liquid (IL) has been introduced. Systematic foam experiments in static condition and porous media were performed to investigate the potential of IL-based additives to enhance surfactant foam stability for gas mobility control. Screening of the mixtures of surfactant and different types of IL was initially conducted based on bulk foam stability measurement at high temperature. Core flooding experiments were then executed to evaluate the foam characteristic using the best formulation in the absence of oil under reservoir conditions. Results from bulk foam experiments indicated that the presence of IL as add...
Published Version
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