Estimation of CO2 Aquifer Storage Potential in Japan

Abstract The technical feasibility of CO 2 storage in aquifers has been proven and demonstrated by the successful experiences in numerous EOR projects all over the world and the commercial practice in Sleipner. Previously, Tanaka et al (1995) had estimated the aquifer storage capacities as 91.5 Gt- CO 2 in Japan. Research Institute of Innovative Technology for the Earth (RITE) in cooperation with Engineering Advancement Association of Japan (ENAA) conducted the estimation of CO 2 storage potential in Japan which was one of the main objectives of this national research funded by the Ministry of Economy, Trade and Industry of Japan (METI). The revision research included storage categories, calculation methods and re-estimated geological storage capacities in Japan. The CO 2 aquifer storage potential was estimated as totally 146 Gt- CO 2 in Japan.