Static and dynamic model of a real hydrocarbon reservoir for future conversion to underground CO2 sequestration

This study investigates CO2 injection in the Norne reservoir, focusing on static and dynamic modeling to assess long-term carbon storage potential. The research employs a comprehensive approach, integrating geological data into a static model, which serves as the foundation for dynamic simulations spanning a 15-year injection period followed by a 100-year shut-in phase. The static model captures the Norne field's complex geology, incorporating structural and stratigraphic features, porosity, and permeability distributions. Dynamic simulations built upon this model account for multiphase flow. Results demonstrate significant CO2 plume migration during the injection phase, with preferential flow through high-permeability zones. Post-injection behavior reveals gradual CO2 stabilization, with increasing contributions from residual and solubility trapping over time. Pressure evolution throughout the reservoir is analyzed, showing initial buildup during injection and subsequent dissipation during the shut-in period. This study provides crucial insights into the feasibility of long-term CO2 storage in the Norne reservoir, highlighting the interplay between geological characteristics and trapping mechanisms. The findings contribute to the broader understanding of subsurface CO2 behavior and support the development of effective carbon capture and storage strategies in similar geological cases.