CO2 Injection Simulation Using ECLIPSE EOR

EOR by CO2 InjectiGreenhouse gasses emissions are of major worldwide concern nowadays, on top of this list comes CO2 emissions. There is a global orientation that supports any attempt to reduce carbon emissions, so investigations and research have been developed intensely in this area. One of these attempts is the injection of CO2 into an oil reservoir to increase its recovery. CO2 injection is an efficient process for increasing enhanced oil recovery (EOR) in oil reservoirs, which has been around in the oil and gas industry for about 40 years. There are some challenges that may face this technique, like finding an economic CO2 source or producer, achieving the miscibility pressure for better efficiency, oil prices, and others. In this thesis, Eclipse 300 simulator is used to analyze and compare the continuous CO2 injection and water alternating CO2 (WACO2) injection. To do so, the optimum way for application is deeply studied for both methods by running multiple simulations to make sensitivity analysis on some parameters like well location, well perforation depth, injection rate, injection ratio and etc. The comparison and optimization process is done for heavy and light oil. An imagined reservoir model is built using FloGrid software while the fluid composition and PVT properties are generated by PVTi software. This study has shown the workflow for CO2 and WACO2 injection processes, and a comparison that serves the goal of more economic oil recovery on