1. A method, comprising: receiving three-dimensional (3D) seismic data acquired in a seismic survey of a region of interest; receiving cross well seismic data acquired in a cross well seismic survey of the region of interest; determining a first set of rock properties of the region of interest based on the cross well seismic data; determining one or more variograms based on the first set of rock properties; and determining one or more 3D rock properties of the region of interest based on the one or more variograms and the 3D seismic data.