Dynamic validation of phase behaviour models for reservoir studies of gas injection schemes

The applicability of the gas-oil displacement data for tuning the phase behaviour model to simulate gas injection processes was studied. The flow characteristics of a number of slim tubes packed with glass beads were evaluated by displacing the binary oil mixtures with equilibrated gases to measure the permeability of the phases at no mass transfer conditions. Liquid-liquid displacement tests were conducted to measure the physical dispersion in the slim tube. The simulated displacement results, for miscible and immiscible conditions, agreed with the experimental data wherein the tuned model was capable of predicting the static date covering the whole range of compositional variations.