Carbon Capture and Storage (CCS) is a feasible short-to-medium term method to dispose
carbon dioxide (CO2) which would otherwise be emitted into the atmosphere and cause potentially
massively damaging climate change. In CCS, CO2 is captured, compressed and injected deep
underground into geological formations. There are four main CO2 trapping mechanisms, namely
stratigraphic or structural trapping, dissolution trapping, capillary trapping anwd mineral trapping. In
this text we discuss all these trapping mechanisms with focus on capillary trapping, which has recently
been identified as a rapid and reliable CO2 storage method
Keywords: Carbon capture and storage (CCS), capillary trapping, multi-phase flow through porous media,
carbon dioxide, climate change.
