Before you decide on a specific geographical location for underground carbon storage, it is good to know exactly what you are setting in motion, both with injection, i.e. the process of pumping the greenhouse gas into the underground, and over time - for up to hundreds of years - while the gas is down there.
This requires the ability to make fairly accurate predictions based on knowledge about the geological conditions in the subsurface, as well as how CO2 behaves under different pressure and temperature conditions, and how the greenhouse gas can react chemically with other substances in the underground.
The necessary predictions can be made using a simulator, which is a highly sophisticated computer programme. A group of chemistry researchers from DTU are now expanding the GEOS carbon storage simulator to include, among other things, their expert knowledge on geochemical reactions. GEOS is an open-source tool originally developed by Lawrence Livermore National Laboratory, Stanford University, and TotalEnergies.
