Continuous growth of atmospheric CO2 concentration believed to be the major reason for greenhouse effect,has become a global environmental issue in recent years. CO2 reduction is a challenge not only for the survival of human society,but also for the development of geosciences and technology. Although there are a variety of approaches to reduce atmospheric CO2,geological storage is considered as an effective way to reduce CO2. Understanding CO2 fluid-rock interaction is the key to successful geological stor...