Safe storage and effective monitoring of CO2 in depleted gas fields

Jenkins, Charles R. and Cook, Peter J. and Ennis-King, Jonathan and Underschultz, James and Boreham, Chris and Dance, Tess and de Caritat, Patrice and Etheridge, David M. and Freifeld, Barry M. and Hortle, Allison and Kirste, Dirk and Paterson, Lincoln and Pevzner, Roman and Schacht, Ulrike and Sharma, Sandeep and Stalker, Linda and Urosevic, Milovan. 2012. Safe storage and effective monitoring of CO2 in depleted gas fields. Proceeding of the National Academy of Sciences of the United States of America (PNAS). 109 (2): pp. E35-E41.

Source Title

Proceedings of the National Academy of Sciences of the United States of America

Abstract

Carbon capture and storage (CCS) is vital to reduce CO2 emissions to the atmosphere, potentially providing 20% of the needed reductions in global emissions. Research and demonstration projects are important to increase scientific understanding of CCS, and making processes and results widely available helps to reduce public concerns, which may otherwise block this technology. The Otway Project has provided verification of the underlying science of CO2 storage in a depleted gas field, and shows that the support of all stakeholders can be earned and retained. Quantitative verification of long-term storage has been demonstrated. A direct measurement of storage efficiency has been made, confirming that CO2 storage in depleted gas fields can be safe and effective, and that these structures could store globally significant amounts of CO2.