Estimating Three-Dimensional Permeability Distribution for Modeling Multirate Coreflooding Experiments

Characterizing subsurface reservoirs such as aquifers or oil and gas fields is an important aspect of various environmental engineering technologies. Coreflooding experiments, conducted routinely for characterization, are at the forefront reservoir modeling. In this work, we present a method to estimate three-dimensional permeability distribution characteristic (intrinsic) relative core sample in order construct accurate model coreflooding experiment. The new improves previous ones by allowing experiments with mm-scale accuracy injection rates, accounting variations capillary–viscous effects associated changing flow rates. We apply drainage nitrogen water two heterogeneous limestone samples subcore scale permeability. show that models able saturation pressure drop what believed be sufficient accuracy.