In petroleum engineering, simulation has become an essential tool, allowing for precise predictions and comparisons of different production scenarios applicable to reservoir development and management. In this study, a static model of a sector reservoir was constructed using real field data and developed within the Computer Modeling Group (CMG) simulation environment. In the CMG simulator, we focused on improving the microbubble model by modifying important inputs in the foam model, including the relationship between apparent viscosity and foam quality, as well as absorption factors. A semi-microbubble rheological model was developed for microbubble injection in the reservoir, and the simulation was subsequently conducted using this proposed model. Additionally, we compared this case to water and immiscible CO₂ injection scenarios, focusing on variables such as Recovery Factor (RF) and oil saturation data results to evaluate its performance. The simulation results indicate that microbubble CO₂ injection achieves a moderately higher recovery factor compared to the other two scenarios.

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