Conference Proceedings

Monitoring CO2 injection into a saline aquifer: Otway project feasibility study

R Pevzner, RJ Galvin, M Madadi, M Urosevic, E Caspari, B Gurevich, D Lumley, V Shulakova, Y Cinar, V Tcheverda

Society of Exploration Geophysicists International Exposition and 82nd Annual Meeting 2012, SEG 2012 | Published : 2012


A key objective of Stage 2 of the CO2CRC Otway Project is to explore the ability of geophysical methods to detect and monitor injection of greenhouse gas into a saline formation. For this purpose, injection of some 10,000 - 30,000 t of gas mixture (80/20% CO2/CH4 by mole fraction in the supercritical state) into the Paaratte formation, a saline aquifer located at a depth of about 1,400 m is planned. Before such an injection experiment is undertaken, we assess the feasibility of geophysical monitoring using computer modeling. To examine the detectability of the plume we need to estimate the time-lapse signal and time-lapse noise. The time lapse signal is modeled using flow simulations, fluid ..

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