Publications

Enhancing Gas Recovery and CO2 Sequestration in Depleted Gas Condensate Reservoirs: Simulation-Driven Approach Using the PUNQ-S3 Model

Proceedings Title : Proc. Indon. Petrol. Assoc., 49th Ann. Conv., 2025

Natural gas, particularly gas condensate, has a significant role for global energy supply. However, the issue of condensate banking, which hinders gas production, may develop when these reservoirs become depleted. This study evaluates the use of CO₂ injection to enhance gas recovery and mitigate condensate banking in a depleted gas condensate reservoir. Leveraging machine learning with tNavigator™ software, authors present a robust framework to optimize hydrocarbon recovery and maximize CO₂ sequestration. A reservoir model based on the PUNQ-S3 framework was developed, examining key parameters—such as well placement, injection rate, and timing—to assess impacts on gas production, condensate removal, CO₂ storage, and trapping mechanisms. Results indicate that CO₂ injection near production wells, significantly enhances gas recovery, increases CO₂ storage capacity, and effectively reduces condensate in near wellbore region. This study demonstrates that CO2 injection enhances gas recovery from depleted gas reservoirs and providing a feasible means of sequestering carbon while addresses environmental concerns. According to the research, gas condensate reservoirs should consider incorporating CO2 injection techniques to maximize hydrocarbon recovery and reduce greenhouse gas emissions. 

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