Modelling reinjection into vapour-dominated two-phase systems: Part 2- reinjection experiments on the 3D Model

By using various versions of the 3D model (grid refinement, different production zone depth and productivity index etc.) the effects of different production and reinjection schemes were investigated. These investigations show that reinjecting 50% of the condensate above the production zones increases steam production significantly. However for higher reinjection rates, the steam production rate may decline owing to the breakthrough of cold reinjected water. If the production zones are deeper, reinjection is much more beneficial. Introducing a larger number of production and reinjection wells scattered throughout the field increases the reservoir life.