Studying the storage index systems and geological storage conditions of CO2 in typical coal basins

Abstract In China, the geological storage of CO 2 in coal reservoirs started relatively late. There are still issues with the index mechanism for choosing storage sites. This study has identified eight types of basic engineering geologic indexes, ten types of basic storage potential indexes, and three types of basic socio-economic indexes at the regional scale for the type of coal reservoir in order to grasp the areas favorable for geological storage of carbon dioxide and the potential for storage in China. These categories are based on the results of current research and engineering practice both domestically and internationally.