Passive Seismic Monitoring of CO2 Storage at Weyburn

Passive seismic monitoring has been ongoing at the IEA GHG Weyburn-Midale Project since 2003. We present the microseismic activity recorded during a 5 year period, showing event timings and locations, and discussing the implications for storage integrity. We link passive seismic observations with predictions about event locations and seismic anisotropy made by a simple geomechanical model, demonstrating the importance of combining observation with modelling in order to guarantee successful storage.