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A Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Applied Science in Petroleum Systems Engineering, University of Regina. xvii, 181 p. Reservoir simulation studies are essential in setting up the appropriate development plan to increase oil and gas field production because they aid corporations in making the greatest choices for their business's economics, and those studies can save the corporation money and time. Accordingly, a full field simulation study was conducted to determine the best IOR and EOR processes to develop a carbonate-light oil field in north Africa. OFM, PETREL, ECLIPSE100, and ECLIPSE300 (Compositional Simulator) were utilized to reach the overall objectives of the reservoir simulation study. At the same time, EXCEL Microsoft Office was used to carry out the study’s economics analysis. Static and dynamic models were employed to understand the main characteristics of the reservoir. After validating the model through an intensive history match study, future production forecasts and reservoir behavior were obtained. Most of the reported production history data were reflected in the simulation model. Furthermore, many development scenarios were applied and tested to investigate the appropriate production mechanism to enhance the field oil recovery like vertical and horizontal infill drilling, gas injection in one well, 70% of the produced gas was recycled as EOR plan, and lastly the carbon dioxide injection in one well of five spot-pattern and inverted five spot-pattern was implemented on a field scale as a pilot project to utilize the company’s available CO2 gas. A detailed economic analysis was carried out in this research to rank the prediction scenarios based on the technical gain and economic profitability. The improved oil recovery techniques of vertical and horizontal infill drilling, with respective RF values of 61.03 and 61.02% and economic values of 140 and 142 MM$, were found to be the optimum possibilities for enhancing recovery based on numerical simulation and economic evaluation. The economics of the CO2 injection with the inverted five-spot pattern were superior to those of the regular five-spot pattern. The study's two sections (simulation and economics) aided in determining how this field could be developed in the future, particularly since the field is depleted and water production is quite high in most of the wells, where specific considerations must be made when it comes to project design. Student yes |
