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; determining a minimum bounding rectangle for the fracture polygon; partitioning the minimum bounding rectangle with mesh points, wherein the mesh points comprise a regular mesh of points determined based on a geometry of the minimum bounding rectangle; determining a number of the mesh points inside the voxel and inside the fracture polygon; based at least in part on the determined number of the mesh points inside the voxel and inside the fracture polygon, estimating an area of the fracture polygon 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 polygon.