Modelling large-scale carbon dioxide injection into the Bunter Sandstone in the UK Southern North Sea

► Static and dynamic modelling of CO2 storage in the Bunter Sandstone. ► Reservoir pressure modelled as a fraction of the lithostatic pressure. ► Reservoir pressure kept below 75% of lithostatic pressure during injection. ► CO2 storage capacity and rate estimated in the modelled area. ► Pore fluid displacement to sea bed modelled.