Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

Flow simulation through fractured media using the DFN approach has computational constraints. Fracture continuum approach is much more computationally saving runtime and memory utilizing mapping discrete fractures onto finite-difference grid. In this study, a two-dimensional DFN model is solved in presence of wells in steady and transient conditions. The DFN solutions are used as reference for verification. A proposed technique is utilized for mapping the discrete fractures onto fine or coarse resolutions in steady and transient conditions. The DFN and the grid-based models are solved in a stochastic framework. A grid-conductivity correction is presented to preserve the total flow of the original DFN in steady and transient conditions. Furthermore, a grid-porosity estimation is proposed to addresses the correct pressure transient response of the grid-based models. Drawdowns are assessed and a technique is proposed to minimize the errors of grid maximum drawdown

Issued also as CD