1. A method for fracture modeling of a field, the method comprising: receiving, using a central processing unit (CPU), a structural model of the field, the structural model comprising field data; restoring, using the CPU, each of a plurality of geological layers from the structural model to create a plurality of boundary conditions; processing each of the plurality of geological layers by iteratively forward modeling each of the plurality of geological layers, defined by one of the plurality of boundary conditions, using geomechanical properties by: determining, using the CPU, fractures resulting from an internal stress and an internal strain determined based on the geomechanical properties of the each of the plurality of geological layers; and redetermining, using the CPU, the fractures resulting from the internal stress and the internal strain for each previously processed geological layer of the plurality of geological layers using the geomechanical properties; when each of the plurality of geological layers is forward modeled, generating, using the CPU and geostatistical modeling, a fracture model with the fractures resulting from the internal stress and the internal strain of the plurality of geological layers; and presenting, using the CPU, the fracture model for use in planning a field operation.