The LBPM software package for simulating multiphase flow on digital images of porous rocks

Direct pore scale simulations of two-fluid flow on digital rock images provide a promising tool to understand the role surface wetting phenomena and transport in geologic reservoirs. We present computational protocols that mimic conventional special core analysis laboratory (SCAL) experiments, which are implemented within open source LBPM software package. Protocols described simulate unsteady displacement, steady-state at fixed saturation, centrifuge experiments. These methods can be used infer relative permeability capillary curves, otherwise behavior based first principles. Morphological tools applied assess image resolution, establish initial conditions, instantiate maps distribution fluids. Internal measure essential aspects flow, including fluid connectivity measures, track transient as they occur during simulation. Computationally efficient workflows developed by combining these components with lattice Boltzmann model define hybrid accelerate computations using morphological incrementally evolve pore-scale distribution. show recover expected trends due properties simulation Benntheimer sandstone.