What is the overall goal of your project?
Our aim is to utilize the experimental data to develop a physically-based chemomechanical model capable of both qualitative and quantitative interpretation of seismic monitoring of CO2 fate. Uncertainty is pervasive in the experimental characterization and physics-based modeling due to inherent heterogeneity of shale microstructure as well as poorly understood inherent processes involved in the evolution of poromechanical properties. As such uncertainty quantification and probabilistic analysis will be incorporated into the modeling framework to improve the reliability and robustness of the predictive models. 

Which grand challenge are you addressing?
Our project is concerned with the NAE grand challenge, Develop Carbon Sequestration Methods, using a combination of experimental, computational, and statistical methods. 

What is the key challenge your project is trying to solve?
Shale rocks are considered as candidate seal layers in underground CO2 storage. CO2-brine-rock interaction can result in matrix dissolution, precipitation of new minerals, and mobilization of minerals, which can affect the seal integrity over time. Therefore, there is a rising need for proper monitoring of CO2 fate in geologic sequestration making an evaluation of the reliability of CO2 monitoring techniques such as seismic monitoring a crucial step in risk assessment of any sequestration project. Thus, a physically-based chemo-mechanical model is of great value for both qualitative and quantitative interpretation of seismic monitoring of CO2 fate. 

What is the impact on society your project has?
The results of the proposal will be beneficial to the society as the team intends to explore ways for the safety assessment of waste disposals and CO2 sequestration. 

Faculty Mentors: Drs. Sara Abedi and Arash Noshadravan 

Engineering Majors Targeted: PETE, CVEN, MSEN