PENTREACT: A non-isothermal reactive transport module in MRST

Presentation from the MRST Symposium 2023, https://www.tinyurl.com/mrst2023 Sajjad Moslehi (1), Hossein Fazeli (2), Shahin Kord (2) 1 - Petroleum University of Technology, Ahvaz, Iran 2 - Iran University of Science and Technology, Tehran, Iran Keywords: PENTREACT, numerical Simulation, MRST, reactive transport, fracture network Modules: ad-core, ad-props, ad-blackoil, geochemistry, dfm, hfm Coupled modeling of subsurface fluid flow, heat transfer, solute transport, and chemical reactions can be applied to many geologic systems and environmental problems, including underground hydrogen storage, CO2 and hazardous waste disposal in subsurface reservoirs, geothermal heat extraction, hydrocarbon recovery, matrix acidizing of wells, diagenetic and weathering processes, acid mine drainage remediation, and contaminant transport. PENTREACT (Pressure-ENergy-TRansport-REACTion) is a numerical simulation module in MRST for reactive transport modeling and has been developed by using a fully-implicit sequential approach. The developed module can be applied to both non-fractured and fractured porous media and it considers equilibrium and kinetic reactions distinctively. To demonstrate the applicability of the program, here we investigate the sealing capacity of the caprock of the Mt. Simon aquifer in the Illinois Basin considered as a CO2 disposal site. In this example, the caprock is assumed to be fractured and the Discrete Fracture Matrix (DFM) model is used to model the fracture network.