Application of intelligent optimization techniques in CO2 geological storage and utilization (CGUS)

Abstract

CO2 geological storage and utilization (CGUS) is an economical and effective method to reduce CO2 emissions and improve oil and gas reservoir recovery, while generating additional economic benefits. In recent years, due to the rapid development of intelligent optimization techniques, more and more intelligent optimization techniques have been widely applied to practical engineering problems. Combining the practical engineering problems of CO2 geological storage and utilization (CGUS) with intelligent optimization techniques can maximize the utilization rate of CO2, the recovery rate of oil and gas reservoirs and maximize economic benefits. The paper initially discussed the suitable storage sites for CO2 geological storage, the potential of CO2 geological storage for oil and gas reservoirs in the world and the main storage projects. Secondly, the paper summarizes research state-of-the-art development of intelligent optimization techniques in joint optimization of recovery and storage stock, compares the optimization results and advantages of different intelligent optimization techniques, and puts forward the problems to be solved in the further research. Intelligent optimization techniques suitable for CO2 geological storage and utilization are selected, and the shortcomings in current research and future development trends are put forward. It provides some guidance for CO2 geological storage and utilization.