1. A process, comprising the steps of: a. selecting an initial 2D grid spacing comprising a uniform grid spacing with respect to an X-axis and a uniform grid spacing with respect to a Y-axis, wherein the grid spacing with respect to the X- and Y-axes may be the same or different, b. assigning wells from a dataset of well data to closest nodes in the grid, wherein the well data comprise well log data, c. if a plurality of wells are assigned to a single node after completing step b, narrowing the grid spacing and repeating step b until no more than one well is assigned to any node, wherein a plurality of the assigned wells are spaced away from the respective closest nodes, d. populating the closest nodes with the well data from the assigned wells, e. populating non-well nodes with well log data extrapolated from the populated closest nodes to generate an all-node-populated 3D matrix of well log data, and f. converting the all-node-populated 3D matrix of well log data to a seismic data format.