A two-phase, pore-scale reactive transport model for the kinetic interface- sensitive tracer

Abstract

Understanding multi-phase, multi-component, reactive flow and transport in porous media is important for a wide range of scientific and engineering applications. Such applications comprise for example the geological storage of carbon dioxide, groundwater remediation, enhanced oil recovery, material manufacturing, and so on (Scheer et al., 2021). In this context, the quantification of the magnitude of the Fluid-Fluid Interfacial Area (FIFA) is essential for studying reactive multi-phase flow and transport in porous materials (Hassanizadeh & Gray, 1990;Miller et al., 1990;Reeves & Celia, 1996). For example, in geological storage of CO 2 , both the rate of CO 2 dissolution in brine and the extent of the residual trapping are determined by the FIFA (Tatomir et al., 2018). Existing techniques for FIFA measurement mainly comprise tracer techniques, e.g., Interfacial Partitioning Tracer Tests (IPTT)