| Geological storage of carbon dioxide has been recognized as a key mitigation option to reduce the anthropogenic emissions of CO 2. In terms of safety and acceptance for geological storage, it is necessary to monitor and verify the containment and migration of the injected CO 2 plume. Time-lapse seismic imaging is a promising method to track the movement of carbon dioxide but inversion or interpretation of the seismic data requires laboratory rock physics measurements of CO2-brine-rock acoustic properties.;To enable these acoustic property measurements, an experimental system was designed, constructed and commissioned that allowed compression and shear wave velocities to measured under conditions simulating geological storage. Experiments were performed with Berea sandstone under dry, brine saturated and CO2 flooded conditions. Experimental system improvements have been identified that will provide better CO2 flow rate control, higher sensitivity for measuring the mass of produced brine and increased resolution and repeatability in wave velocity measurements. |
