CO2 storage capacity assessment of deep saline aquifers in the Subei Basin, East China

► We selected two sets of reservoir-seal combinations. ► We calculated the storage capacity of the Lower Yancheng and the Upper Sanduo Formation. ► We calculated the storage capacity of Yanfu Depression and the Dongtai Depression. ► This case study in Subei Basin can provide clear perspective, strategies and methods for suitability and capacity assessment for storage in deep saline aquifer.