Events Calendar

Length and Time Scales of Trapping Processes Associated with CO2 Sequestration

Speaker: Dr. Hamdi Tchelepi, Stanford University Abstract:
We study the primary CO2 trapping processes in deep saline aquifers:
dissolution and residual trapping. The length and time scales associated with the onset of miscible instability and the long term convective dissolution rates are analyzed using linear stability analysis and high-resolution nonlinear simulations. The migration of CO2 plumes as gravity currents and the effect of residual trapping of the CO2 in the wake of the advancing current are analyzed using a one-dimensional sharp-interface model. We study the behavior of gravity currents in large-scale aquifers with small dip angles, and we discuss issue related to propagation speeds, trapping capacities, and maximum plume migration distances. These preliminary results indicate that CO2 storage in large, deep saline aquifers may be a viable option.

Location: Kaprielian Hall (KAP) - 209

Audiences: Everyone Is Invited

Contact: Evangeline Reyes