1. A method comprising: based on data indicative of a discrete fracture network, identifying a fracture polygon intersecting a voxel of a three-dimensional grid of voxels representing a region of interest of a hydrocarbon-bearing reservoir; partitioning the polygon with a regular mesh of points; determining a number of the mesh points inside the voxel and inside the polygon; based at least in part on the determined number of mesh points inside the voxel and inside the polygon, estimating an area of the fracture inside the voxel; and determining at least one property of a portion of the reservoir, which coincides with the voxel based at least in part on the estimated area of the fracture.