Geophysical monitoring at the Ketzin pilot site for CO2 storage: New insights into the plume evolution
MetadataShow full item record
© 2014 Elsevier Ltd. To date, 3D time-lapse seismic monitoring at the Ketzin CO2 storage pilot site comprised a baseline survey conducted in 2005 and two repeat surveys conducted in 2009 and 2012. At the time of the first repeat survey (22-25kt of CO2), the CO2 plume was found to be concentrated around the injection well with a maximum lateral extent of approximately 300-400m and a thickness of 5-20m. Data from the 2012 survey (61kt of CO2), show further growth and migration of the amplitude anomaly interpreted to be induced by the CO2 injection. The anomaly is similar in shape to that obtained from the 2009 survey, but significantly stronger and larger by ~150m in the N-S direction and by ~200m in the E-W direction. In agreement with the 2009 survey, the new data show a westward propagation of the plume, a trend governed by the complex structure of the reservoir. No evidence of systematic changes in the seismic signature within the overburden is observed. A quantitative assessment of the plume reveals a 15% discrepancy with the injected amount, which could be attributed to the ongoing dissolution processes. However, the estimated quantity also contains significant uncertainty.
Showing items related by title, author, creator and subject.
Alajmi, M.; Bona, Andrej; Pevzner, R. (2015)During Stage 2 of the Otway CCS Australian project it is planned to inject a small, up to 15,000 tonnes of gas, into a saline aquifer located at depth of 1500 m. In CO2 sequestration, the ability to detect CO2 plumes is ...
Design and deployment of a buried geophone array for CO2 geosequestration monitoring: CO2CRC Otway Project, Stage 2CPevzner, Roman; Tertyshnikov, Konstantin; Shulakova, V.; Urosevic, Milovan; Kepic, Anton; Gurevich, Boris; Singh, R. (2015)Stage 2C of the CO2CRC Otway project aims to demonstrate the stabilization of a gas plume following the injection of approximately 15,000 tonnes of CO2-rich gas mixture into the saline aquifer and examine the capabilities ...
Pevzner, Roman; Urosevic, Milovan; Tertyshnikov, Konstantin; Gurevich, Boris; Shulakova, Valeriya; Glubokovskikh, Stanislav; Popik, Dmitry; Correa, J.; Kepic, Anton; Freifeld, B.; Robertson, M.; Wood, T.; Daley, T.; Singh, R. (2017)The CO2CRC's “Otway Stage 2C project” is a test injection of 15,000 tons of supercritical gas mixture (80 mole% CO2 & 20 mole% CH4) at the CO2CRC Otway site in the Australian state of Victoria. The objective of this test ...