Long-term performance of a mudrock seal in natural CO2 storage

Research Article| January 01, 2009 Long-term performance of a mudrock seal in natural CO2 storage Jiemin Lu; Jiemin Lu 1School of GeoSciences, The University of Edinburgh, Edinburgh EH9 3JW, Scotland *Current address: Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, University of Texas at Austin, Austin, Texas 78758, USA; E-mail: jiemin.lu@beg.utexas.edu Search for other works by this author on: GSW Google Scholar Mark Wilkinson; Mark Wilkinson 1School of GeoSciences, The University of Edinburgh, Edinburgh EH9 3JW, Scotland Search for other works by this author on: GSW Google Scholar R. Stuart Haszeldine; R. Stuart Haszeldine 1School of GeoSciences, The University of Edinburgh, Edinburgh EH9 3JW, Scotland Search for other works by this author on: GSW Google Scholar Anthony E. Fallick Anthony E. Fallick 2Scottish Universities Environmental Research Centre, East Kilbride G75 0QF, Scotland Search for other works by this author on: GSW Google Scholar Author and Article Information Jiemin Lu *Current address: Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, University of Texas at Austin, Austin, Texas 78758, USA; E-mail: jiemin.lu@beg.utexas.edu 1School of GeoSciences, The University of Edinburgh, Edinburgh EH9 3JW, Scotland Mark Wilkinson 1School of GeoSciences, The University of Edinburgh, Edinburgh EH9 3JW, Scotland R. Stuart Haszeldine 1School of GeoSciences, The University of Edinburgh, Edinburgh EH9 3JW, Scotland Anthony E. Fallick 2Scottish Universities Environmental Research Centre, East Kilbride G75 0QF, Scotland Publisher: Geological Society of America Received: 21 May 2008 Revision Received: 04 Sep 2008 Accepted: 08 Sep 2008 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2009 Geological Society of America Geology (2009) 37 (1): 35–38. https://doi.org/10.1130/G25412A.1 Article history Received: 21 May 2008 Revision Received: 04 Sep 2008 Accepted: 08 Sep 2008 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Jiemin Lu, Mark Wilkinson, R. Stuart Haszeldine, Anthony E. Fallick; Long-term performance of a mudrock seal in natural CO2 storage. Geology 2009;; 37 (1): 35–38. doi: https://doi.org/10.1130/G25412A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The ability of mudrock seals to prevent CO2 leakage is a major concern for geological storage of anthropogenic CO2. The long-term performance of a mudrock seal, which provides a natural analogue, in the North Sea Miller oil field has been evaluated. This mudrock seal is immediately above a natural CO2-rich reservoir. The paper reports the stable isotopes of carbon from carbonate minerals in the mudrock that have precipitated in contact with CO2 during 4 km of burial. A well-defined linear trend of upward-decreasing δ13C traces the progressive penetration of free-phase CO2 causing dissolution and reprecipitation of carbonate minerals. The CO2 was emplaced ca. 70–80 Ma, and has only penetrated 12 m vertically in this case. The infiltration rate is estimated as ~9.8 × 10−7g cm−2 yr−1. Engineered CO2 storage under this type of mudrock seal will have a considerable safety margin. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.