digilib@itb.ac.id +62 812 2508 8800

The global demand for energy, coupled with the need to reduce carbon emissions, has driven the exploration of innovative methods such as CO2 injection for Enhanced Oil Recovery (EOR). This study evaluates CO2 injection in the Norne Field, focusing on its potential for improving oil recovery and CO? sequestration. compositional PVT modeling is used and the variation of CO2 injection scenarios for simulating field conditions, which is explored in this study. The methodology involved history matching to calibrate the reservoir model, followed by simulations of different CO2 injection scenarios. The results indicated that CO2 injection significantly enhances oil production, with Scenario X achieving the highest cumulative oil production due to the addition of water injection wells. Additionally, CO2 sequestration was effective, with significant storage achieved through structural, residual, and solubility trapping mechanisms. The findings suggest that combining high CO2 injection rates with optimized water injection wells can improve both oil recovery and CO2 storage. Further economic analysis considering carbon taxes could provide a more comprehensive evaluation of the optimal development scenario.