Modelling of Conductive Faults with a Multiscale Approach

Abstract : Some of the most productive oil and gas reservoirs are found in formations crossed by multiscale fractures/faults. Among them, conductive faults may closely control reservoir performance. However, their modelling encounters numerical and physical difficulties linked with: - the necessity to keep an explicit representation of faults through small-size gridblocks; - the modelling of multiphase flow exchanges between the fault and the neighbouring medium. In the present work, a physically representative and numerically efficient modelling approach is proposed to incorporate subvertical conductive faults in single- and dual-porosity simulators. To validate our approach and demonstrate its efficiency, simulation results of multiphase displacements in representative field sector models are presented.
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N. Henn, M. Quintard, B. Bourbiaux, S. Sakthikumar. Modelling of Conductive Faults with a Multiscale Approach. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2004, 59 (2), pp.197-214. ⟨10.2516/ogst:2004015⟩. ⟨hal-02017296⟩

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