Abstract
According to the Paris Agreement regarding climate change, every nation must reduce their carbon output in order to keep the rise of the average global temperature below 2°C compared to pre-industrial levels and, ideally, to limit the rise to 1.5°C above pre-industrial levels, assuming that this would significantly reduce the risks and impacts of climate change. One way of reducing the carbon footprint would be to capture the CO2 waste from industrial sources, transport it to storage sites and then deposit it underground so that the CO2 would not re-enter the atmosphere. Once the CO2 waste is captured, this must be stored in underground sites like: depleted oil and gas fields, saline aquifers, salt caverns or abandoned mines. The major advantage of using depleted oil and gas fields for storage is that we have a good knowledge of the geological model and the petrophysical parameters. This paper will address the advantages, disadvantages, as well as the screening parameters for selecting depleted gas fields and the estimated risks related to the CO2 storage process.
