Impact of Mineral Reactive Surface Area on Forecasting Geological Carbon Sequestration in a CO2-EOR Field

Mineral reactive surface area (RSA) is one of the key factors that control mineral reactions, as it describes how much accessible and can participate in reactions. This work aims to evaluate impact RSA on numerical simulations for CO2 storage at depleted oil fields. The Farnsworth Unit (FWU) northern Texas was chosen a case study. A simplified model used screen representative cases from 87 combinations reduce computational cost. Three selected with low, mid, high values were FWU model. Results suggest trapping more complex than individual While low predicted negligible porosity change an insignificant amount model, mid forecasted up 1.19% 5.04% reduction due 2.46% 9.44% total trapped minerals by end 600-year simulation, respectively. presence hydrocarbons affects geochemical reactions lead net trapping, whereas dissolution when are removed system.