6. Permanent Offshore CO₂ Storage Site

From capture to storage: CO₂ can be permanently stored in geological formations.

Whether transported by specialised vessels or offshore pipelines, CO₂ ultimately reaches deep geological formations, where it is injected underground. These include depleted offshore oil and gas reservoirs, as well as saline aquifers located more than one kilometre below the surface. At these depths, the natural pressure is extremely high, so the CO₂ must be delivered at a sufficiently high pressure to be injected into the geological formations.

These solutions are recognised by the IPCC and ADEME as ways to reduce emissions from industrial processes that are difficult to decarbonise.