IMPLEMENTING FREE ADVECTION IN BASIN MODELING

A method for performing a field operation of a field. The method includes obtaining, for each cell in a data volume, a permeability measure to represent fluid passing ability in a corresponding location in the field, generating neighboring cell combinations based on each neighboring cell combination including a connected portion of the cells, and the permeability measure for each cell in the connected portion satisfying a pre-determined threshold, selecting, from the neighboring cell combinations and based at least on the permeability measure, a selected neighboring cell combination having an optimal combined free advection measure, wherein the selected neighboring cell combination corresponds to an advection candidate region of the field, generating an equivalent thermal conductivity for the advection candidate region, and performing, based at least on the equivalent thermal conductivity, a basin modeling of the field to generate a modeling result.