Optimization of Enhanced Oil Recovery Techniques for Mature Oilfields

Thesis Abstract

Abstract
This thesis investigates the optimization of enhanced oil recovery (EOR) techniques for mature oilfields to enhance production efficiency and maximize oil recovery. The study focuses on the challenges faced in mature oilfields, where primary and secondary recovery methods have been exhausted, and explores the application of advanced EOR techniques to improve reservoir performance. The research methodology involves a comprehensive literature review to understand the existing EOR technologies, followed by field case studies and simulations to evaluate the effectiveness of different EOR methods in mature oilfields. Chapter One provides an introduction to the research topic, highlighting the background of the study, problem statement, objectives, limitations, scope, significance of the study, structure of the thesis, and definition of key terms. Chapter Two presents a detailed literature review covering ten key aspects of EOR technologies, including chemical flooding, thermal methods, gas injection, and microbial EOR, among others. The review focuses on the principles, applications, advantages, and limitations of each EOR technique in mature oilfields. Chapter Three outlines the research methodology, including the selection of case study oilfields, data collection methods, simulation techniques, and evaluation criteria for comparing the performance of different EOR methods. The chapter also discusses the modeling approaches and software tools used to simulate reservoir behavior under various EOR scenarios, providing insights into the technical aspects of the study. Chapter Four presents the detailed discussion of findings from the field case studies and simulation results, analyzing the impact of different EOR techniques on oil recovery, production rates, cost-effectiveness, and environmental considerations. The chapter explores the challenges and opportunities associated with implementing EOR strategies in mature oilfields, highlighting best practices and recommendations for optimizing reservoir performance. Chapter Five concludes the thesis by summarizing the key findings, highlighting the contributions to the field of petroleum engineering, and offering recommendations for future research and practical applications. The conclusion emphasizes the importance of adopting tailored EOR strategies based on reservoir characteristics, economic viability, and environmental sustainability to maximize oil recovery in mature oilfields. Overall, this thesis provides valuable insights into the optimization of EOR techniques for mature oilfields, offering a holistic approach to enhancing reservoir performance and sustainability in the oil and gas industry. The study contributes to the body of knowledge on EOR technologies and serves as a practical guide for engineers, researchers, and industry professionals involved in reservoir management and hydrocarbon production optimization.