LNEG has been dealing with issues realted with geological storage since the last 20 years, when were launched in Portugal pioneering projects for natural gas storage in reservoir opened in salt domes.

Also in the field of CO2 storage, LNEG has participated in national and international studies and research projects, including related technical activities, based on the geological knowledge of the territory. Of these initiatives, the COMET project, which studied the CO₂ transport infrastructure in the Western Mediterranean area, deserves special mention, by identifying “where”, “when” and “amount of CO₂” that can be stored in geological formations located in regions with good location potential.