Microbial clogging in the subsurface - A one-phase flow model and issues
involved in extension to two-phase flow
In the talk, a Darcy scale model capable of simulating microbial
transport and accumulation in saturated porous media is presented. The
modelled processes include biomass growth and decay, transfer processes
between the bulk fluid and the solid and advective/dipsersive transport
of bacteria with the bulk fluid.
The model is intended to be used in simulations of microbial clogging in
an underground CO2 storage site and thus two fluid phases need to be
accounted for. The extension from one-phase to two-phase flow is not
straight-forward. The second part of the presentation focuses on the
issues that need to be included in a two-phase model such as the
estimation of surface areas, capillary pressure and relative permeabilities.