USE OF LIMITED COMPOSITIONAL SIMULATOR

ABSTRACT

Various investigations have been performed using full compositional simulators to assess the efficacy of gas-condensate reservoir recovery. Full compositional simulators are more costly, take longer to run, and need a lot of data. This study used a four-component limited compositional reservoir simulator as an alternate approach of analyzing gas condensate recovery. To mimic gas-condensate reservoir formation, the limited compositional simulator uses the Todd-Longstaff black-oil model. This research used Eclipse black oil software to create a gas condensate reservoir simulation model. The model was created to simulate the production characteristics of a Niger Delta gas condensate reservoir. The base case or primary depletion with no injection, water injection case, water alternating gas injection case, and gas injection case were all simulated after the model was developed. The four simulation scenarios were compared in order to determine the most effective reservoir development options, which will aid in decision-making. Of all the production methods investigated in this study, gas injection had the best recovery efficiency of roughly 53 percent of the oil in situ and the lowest water cut. This study has a result that is comparable to fully compositional simulation. For gas-condensate project feasibility studies and optimization of gas-condensate reservoir recovery performance, it is advised that the limited compositional simulator be used.