Gas source attribution techniques for assessing leakage at geologic CO2 storage sites: Evaluating a CO2 and CH4 soil gas anomaly at the Cranfield CO2-EOR site

Geologic Storage of CO2

Dynamic imaging provides an effective way to integrate previous time-lapse data with current data in order to estimate a current model. We present two methods useful for continuous dynamic reservoir and subsurface monitoring. The first method is a stochastic method for the inversion of geophysical data. It uses the ensemble Kalman filter (EnKF) that we demonstrate using time-lapse surface seism...

Geologic Storage of CO2

CO2 EOR and Storage in Oil Reservoirs

CO2 EOR and Storage in Oil Reservoirs — CO2 injection into tertiary oil reservoirs has been widely accepted as an effective technique for enhanced oil recovery (EOR), and has been used by the oil industry for over 40 years. Concerns over greenhouse gas emissions are leading to the investigation and realisation of its potential as a carbon storage method in recent years. With the right reservoir...

SCIAMACHY carbon gas measurements: CO, CH4, and CO2

Atmospheric carbon gases retrieved from SCIAMACHY by WFM-DOAS: improved global CO and CH4 and initial verification of CO2 over Park Falls (46 N, 90W) R. de Beek, M. Buchwitz, S. Noël, J. P. Burrows, H. Bovensmann, M. Bruns, H. Bremer, P. Bergamaschi, S. Körner, and M. Heimann Institute of Environmental Physics (IUP), University of Bremen FB1, Bremen, Germany Institute for Environment and Sustai...

Geochemical Influence on Microbial Communities at CO2-Leakage Analog Sites

Microorganisms influence the chemical and physical properties of subsurface environments and thus represent an important control on the fate and environmental impact of CO2 that leaks into aquifers from deep storage reservoirs. How leakage will influence microbial populations over long time scales is largely unknown. This study uses natural analog sites to investigate the long-term impact of CO...