Enhanced Oil Recovery Techniques for Mature Oil Fields: A Comparative Study

Thesis Abstract

Abstract
This thesis investigates and compares various enhanced oil recovery (EOR) techniques for mature oil fields, aiming to enhance production efficiency and maximize oil recovery. The study focuses on mature oil fields, which typically exhibit declining production rates due to decreasing reservoir pressure and the depletion of easily recoverable oil. By assessing and comparing different EOR methods, this research seeks to identify the most effective strategies for improving oil recovery in mature fields. The research methodology involves a comprehensive literature review to examine existing EOR techniques, including water flooding, gas injection (such as CO2 and natural gas), chemical flooding (such as polymer and surfactant injection), and thermal methods (such as steam injection). The advantages, limitations, and success rates of each technique will be critically evaluated to determine their applicability and effectiveness in mature oil fields. Chapter One provides an introduction to the research topic, presenting the background of the study, problem statement, objectives, limitations, scope, significance, and the structure of the thesis. Chapter Two consists of a detailed literature review that explores ten key studies and research articles on EOR techniques in mature oil fields. The chapter reviews the evolution of EOR methods, their applications, successes, and challenges. Chapter Three outlines the research methodology, including the selection of EOR techniques to be compared, data collection methods, analytical tools, and criteria for evaluating the effectiveness of each technique. The chapter also discusses the selection criteria for mature oil fields considered in the comparative study. Chapter Four presents a detailed discussion of the findings from the comparative analysis of EOR techniques in mature oil fields. The chapter highlights the strengths and weaknesses of each method, their economic viability, environmental impact, and technological requirements. The results of the study will provide valuable insights into the most suitable EOR techniques for maximizing oil recovery in mature fields. Chapter Five concludes the thesis by summarizing the key findings, discussing their implications for the oil industry, and suggesting recommendations for future research. The conclusion highlights the importance of selecting the most appropriate EOR technique based on reservoir characteristics, economic feasibility, and environmental considerations. In summary, this thesis contributes to the existing body of knowledge on EOR techniques for mature oil fields by providing a comparative analysis of different methods. The research findings offer practical guidance for oil producers and engineers seeking to optimize oil recovery and extend the productive life of mature oil fields.