Data and model archive for simulations of microbial sulfate reduction and methanogenesis in porous media during underground hydrogen storage

This data release and model archive contains geochemical and microbial reaction modeling input files, selected output files, and an accompanying data dictionary. The files were used to simulate hydrogen consumption during underground hydrogen storage (UHS). Batch-reaction simulations were developed using the React program in Geochemist’s Workbench (GWB) and are based on estimated formation-water chemistry from the Mississippian Aux Vases Formation in the Illinois Basin. The models represent coupled geochemical and microbial processes in a closed porous system, including microbial sulfate reduction and hydrogenotrophic methanogenesis, reaction kinetics, biomass growth, and feedbacks with pH and temperature, and were run over short- and long-term timescales.