HR: 1340h
AN: H13F-1652    [Abstracts]
TI: Monitoring of Geologically Stored Carbon Dioxide Using Atmospheric Techniques
AU: Etheridge, D
EM: david.etheridge@csiro.au
AF: CSIRO Marine and Atmospheric Research, and CSIRO Energy Transformed Flagship, PMB 1, Aspendale, Vic 3195, Australia
AU: Etheridge, D
EM: david.etheridge@csiro.au
AF: CRC for Greenhouse Gas Technologies (CO2CRC), GPO Box 463, Canberra, ACT 2601, Australia
AU: * Leuning, R
EM: ray.leuning@csiro.au
AF: CSIRO Marine and Atmospheric Research, PO Box 3023, Canberra, Vic 2201, Australia
AU: * Leuning, R
EM: ray.leuning@csiro.au
AF: CRC for Greenhouse Gas Technologies (CO2CRC), GPO Box 463, Canberra, ACT 2601, Australia
AU: Luhar, A
EM: ashok.luhar@csiro.au
AF: CSIRO Marine and Atmospheric Research, and CSIRO Energy Transformed Flagship, PMB 1, Aspendale, Vic 3195, Australia
AU: Spencer, D
EM: darren.spencer@csiro.au
AF: CSIRO Marine and Atmospheric Research, and CSIRO Energy Transformed Flagship, PMB 1, Aspendale, Vic 3195, Australia
AU: Zegelin, S
EM: steve.zegelin@csiro.au
AF: CSIRO Marine and Atmospheric Research, PO Box 3023, Canberra, Vic 2201, Australia
AU: Allison, C
EM: colin.allison@csiro.au
AF: CSIRO Marine and Atmospheric Research, and CSIRO Energy Transformed Flagship, PMB 1, Aspendale, Vic 3195, Australia
AU: Steele, P
EM: paul.steele@csiro.au
AF: CSIRO Marine and Atmospheric Research, and CSIRO Energy Transformed Flagship, PMB 1, Aspendale, Vic 3195, Australia
AU: Meyer, M
EM: mick.meyer@csiro.au
AF: CSIRO Marine and Atmospheric Research, and CSIRO Energy Transformed Flagship, PMB 1, Aspendale, Vic 3195, Australia
AU: Dodds, K
EM: kevin.dodds@csiro.au
AF: CRC for Greenhouse Gas Technologies (CO2CRC), GPO Box 463, Canberra, ACT 2601, Australia
AU: Dodds, K
EM: kevin.dodds@csiro.au
AF: CSIRO Petroleum, PO Box 1130, Bentley, WA 6102, Australia
AU: Sharma, S
EM: ssharma@co2crc.com.au
AF: CRC for Greenhouse Gas Technologies (CO2CRC), GPO Box 463, Canberra, ACT 2601, Australia
AB: Geosequestration (carbon capture and underground storage) is planned as a major global emissions reduction measure and is an essential part of several low CO₂ emission energy technologies. The potential escape of the geologically stored CO₂ to the atmosphere is one of the main concerns of project operators, regulators, the carbon trade and the public. Although rates of escape large enough to endanger health and safety are extremely unlikely, low leak rates could reduce the effectiveness of geosequestration in controlling emissions. Monitoring geosequestration sites will be a requirement and atmospheric monitoring is part of an overall package, together with subsurface monitoring techniques. Atmospheric monitoring of a CO₂ storage site will provide advantages such as relatively low cost and minimal intervention but also presents challenges because of the typically high and variable concentrations and fluxes of CO₂ in the atmosphere. Our modeling of hypothetical leaks from CO₂ storage and dispersion into the atmosphere suggests that identifying and quantifying emissions to the atmosphere may be possible with a combination of atmospheric techniques. These include the continuous and precise monitoring of CO₂, naturally occurring tracers such as CO₂ isotopes, and introduced tracers, together with the measurement and modeling of CO₂ fluxes and dispersion, over several special scales. Results from the use of these techniques in two projects will be discussed-the CO2CRC's Otway Project in Victoria, and a controlled release experiment near Canberra.
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
DE: 1631 Land/atmosphere interactions (1218, 1843, 3322)
SC: Hydrology [H]
MN: 2007 Fall Meeting