Table 1.

The geometrical structure, volume of interest (i.e., model dimension), and grid-cell dimension of the models.

Truth model (Fig. 2a)	Upscaled model (Fig. 2b)
Contains 3D sub-seismic fault zone components explicitly with their associated single-phase and two-phase fault rock properties	Contains 3D sub-seismic fault zone components and associated fault rock properties upscaled using two-phase flow-based geometrical upscaling
Non-uniform grid-cells	Uniform grid-cells
Model dimension: 500 × 250 × 25 m	Model dimension: 500 × 250 × 25 m
Grid-cell dimension: 30 × 38 × 5	Grid-cell dimension: 20 × 10 × 5