Thesis Abstract

Abstract
Enhanced Oil Recovery (EOR) techniques play a crucial role in maximizing oil production from mature oil fields. This thesis focuses on investigating and analyzing various EOR methods to improve the recovery factor of mature oil fields. The research is motivated by the declining production rates in mature oil fields and the increasing global demand for oil. The primary objective of this study is to evaluate the effectiveness of different EOR techniques in enhancing oil recovery from mature oil fields, with a specific emphasis on the economic and environmental aspects. The research methodology involves a comprehensive literature review to analyze existing EOR techniques, including water flooding, gas injection, chemical flooding, thermal methods, and microbial EOR. The literature review highlights the advantages, limitations, and challenges associated with each EOR method. Additionally, the study incorporates case studies and field applications to provide practical insights into the implementation of EOR techniques in mature oil fields. The findings of the research indicate that the selection of an appropriate EOR method is dependent on various reservoir characteristics, such as rock permeability, fluid properties, and reservoir heterogeneity. Water flooding is identified as a widely used EOR method for mature oil fields, while gas injection and chemical flooding are considered effective in certain reservoir conditions. Thermal methods, such as steam injection and in-situ combustion, are found to be successful in heavy oil reservoirs with high viscosity. The discussion of findings delves into the technical, economic, and environmental considerations associated with implementing EOR techniques in mature oil fields. Factors such as capital investment, operating costs, reservoir performance, and environmental impact are crucial in determining the feasibility and success of EOR projects. The study emphasizes the importance of conducting thorough reservoir characterization and simulation studies to optimize EOR processes and maximize oil recovery. In conclusion, this thesis underscores the significance of EOR techniques in revitalizing mature oil fields and extending their productive life. The research provides valuable insights for oil and gas companies, reservoir engineers, and policymakers in making informed decisions regarding the adoption of EOR strategies. The study contributes to the ongoing efforts to enhance oil recovery efficiency, reduce production costs, and mitigate environmental risks associated with oil production from mature fields. Further research is recommended to explore innovative EOR technologies and strategies for sustainable energy production in the oil and gas industry.

Thesis Overview