Impact of Fracture Topology on the Fluid Flow Behavior of Naturally Fractured Reservoirs

Fluid flow modeling of naturally fractured reservoirs remains a challenge because the complex nature fracture systems controlled by various chemical and physical phenomena. A discrete network (DFN) model represents an approach to capturing relationship fractures in system. Topology connectivity aspect planes, which have fundamental role simulation geomaterials involving rock matrix. Therefore, one most-used methods treat is double porosity-double permeability model. This requires shape factor calculation, key parameter used determine effects coupled fracture-matrix fluid on mass transfer between different domains. paper presents numerical investigation that aimed evaluate impact topology equivalent through hydraulic (f). study was based simulations performed models embedded finite element meshes (FEM). Modeled cases represent four hypothetical examples media three real scenarios extracted from Brazilian pre-salt carbonate reservoir We compared results with data obtained using Oda’s analytical correction approach, considering f. The showed are strongly influenced (f) synthetic for X Y-node topological patterns, higher value f (0.81) more expressive values upscaled (kx-node = 0.1151 ky-node 0.1153) (25.6 14.5), respectively. shown not efficient estimating medium, including when these were corrected aspects.