... DFM images, provided as input, and the equivalent-continuum model (output), which comprises the predicted equivalent permeability of each grid-block. The proposed upscaling workflow incorporates the generation of the training datasets, design of the neural network architecture, and the validation...

... of flow transfers at the fracture scale; • applying the proper hypothesis to approximate the solutions; • being efficient enough in terms of computational time. Many methods can be used to estimate the equivalent permeability of a diffuse fracture network. We currently use a fast analytical...