CARBON DIOXIDE INJECTION SIMULATION FOR RESERVOIRS IN ANADARKO BASIN

Though energy transition is underway looking for low emission energy sources like solar, wind, hydrogen and bioenergy, oil and gas will remain significant for decades which requires continued investment. At this onset, carbon capture storage and utilization play an important role in reducing carbon emissions. Enhanced oil recovery (EOR) by injecting carbon dioxide (CO₂) gas in underground rock formations, reduces the carbon footprint as well as incremental production from the oil reservoirs. The industrial emission of carbon dioxide gas can be used to stimulate oil production. Though enhanced oil recovery using carbon dioxide has been used in the industry for several years, quantifying the efficiency factor of CO₂ storage by the process is still a topic of research. During injection process to the rock formation, CO₂ plume will move vertically and laterally through the larger pore spaces thus utilizing only a portion of the pore volume. The amount that can be stored depends on the carbon dioxide storage efficiency factor. The efficiency factor varies with properties of rock formation and depth to the reservoir. Reservoir simulation models are key to understand the storage efficiency of CO₂ as well as enhanced oil recovery. Integrated interpretation of 3D seismic data and well logs aid in building reservoir models for simulations studies. Reservoir simulation scenarios give insight into effectiveness of using (CO₂) for enhanced oil recovery and carbon storage. The present study focuses on the reservoir formations in Anadarko basin, onshore midcontinent. A reservoir model comprising the interpreted geologic layers from the 3D seismic data and subsequent reservoir characterization using seismic inversion from the Anadarko basin is built. Simulation of CO2 injection and movement of the plume give insight into the effectiveness of the carbon dioxide injection in the subsurface and reservoir performance of the reservoir. This study provides insight into carbon storage opportunities in Anadarko basin.