Site selection for carbon dioxide geological storage using analytic network process

This paper presents an analytic network process (ANP) approach for the selection of potential sites for CO2 geological storage as basis for further exploring geological features and simulation of transport characteristics. Site selection for CO2 geological storage in this study can be considered as a complex multi-criteria decision-making problem, and thus a multi-criteria decision model with eight evaluation criteria is proposed. ANP is applied to site selection and is characterized by interdependencies among decision structure components. An illustrative example in the geological field of oil and gas reservoirs in Taiwan is presented to demonstrate ways to select and rank the most appropriate site in terms of storage capability. The results obtained in this study have proven that ANP-based approach is a useful tool in pre-screening potential sites for CO2 geological storage, enabling decision-makers to facilitate CO2 storage within climate policy.

► We present an evaluation framework for selecting potential sites for CO2 geological storage.
► Analytic network process (ANP) approach is utilized to site selection and is characterized by interdependencies among decision structure components.
► An illustrative example is presented to demonstrate ways to select and rank the most appropriate site in terms of storage capability.
► Obtained results show that ANP-based approach is a useful tool in pre-screening potential sites for CO2 geological storage.