exploring The FaTe oF Co 2 aT BriTish ColumBia's planned For T nelson CarBon CapTure and sT orage projeCT

The geochemical reactions involved in injecting fluids into reservoirs remain poorly understood, yet this information is critical to the success of carbon capture and storage (CCS) projects. Remarkably, no standard methodology exists to estimate storage capacity for CCS, largely because of the inadequacy of thermo-kinetic databases needed to model geochemical processes at the pressures, temperatures, and salinities of deep reservoir conditions. Thermodynamic and kinetic constants and coefficients, reactive surface area estimates, and understanding of pore-scale physical processes that control geochemical reactivity are particularly lacking. This information is required to predict long-term CO 2 trapping. The University of Victoria is aiming to develop this information by performing high-quality research on a caseby-case basis. In collaboration with the Ministry of Energy, Mines and Petroleum Resources and Spectra Energy, researchers at the University of Victoria are performing laboratory experimental work to measure empirical and site-specific thermo-kinetic properties of reservoir materials from the planned Fort Nelson CCS project. These results and a conceptual model based on field data will be integrated into the project to produce a reactive transport simulation to predict the fate of the injected CO 2 .