DOE CFSES studies on evaluating brine displacement and bulk rock weakening by injected CO2

Nicolas Espinoza

CO2 geological storage can help mitigate the emission of greenhouse gases to the atmosphere. Large-scale implementation of CO2 geological storage requires full understanding of the interaction between injected CO2, host pore fluid, and rock minerals.

One of the objectives of this project is to quantify the mechanical degradation of reservoir rocks when exposed to CO2-water mixtures. We aim at measuring these changes over various length scales and determine the impact on effective mechanical properties. The results will help assess risks involved in carbon geological storage.