Enhanced Oil Recovery Techniques for Mature Oil Fields

Thesis Abstract

Abstract
Enhanced oil recovery (EOR) techniques play a crucial role in maximizing hydrocarbon production from mature oil fields. This thesis investigates various EOR methods and technologies that can be applied to increase oil recovery efficiency in mature oil fields. The study begins with a comprehensive introduction to the importance and challenges of EOR in mature oil fields, highlighting the declining production rates and the need for advanced recovery methods. A background of the study provides an overview of the evolution of EOR techniques over the years and their applications in the oil and gas industry. The problem statement identifies the primary issues faced in mature oil fields, such as reservoir heterogeneity, low permeability, and trapped oil saturation. The objectives of the study are outlined to address these challenges by exploring and evaluating different EOR techniques, including thermal methods, chemical methods, and gas injection methods. The limitations of the study are also discussed, acknowledging the complexity and variability of mature oil fields that may impact the generalizability of the findings. The scope of the study encompasses a detailed analysis of case studies and field applications of EOR techniques in mature oil fields worldwide. The significance of the study lies in its potential to provide valuable insights and recommendations for oil and gas operators seeking to optimize oil recovery from mature reservoirs. The structure of the thesis is outlined to guide the reader through the research methodology, literature review, findings discussion, and conclusion. The literature review chapter critically examines existing research and publications on EOR techniques, highlighting their effectiveness, limitations, and technological advancements. Key themes such as reservoir characterization, fluid properties, and economic feasibility are explored to provide a comprehensive understanding of EOR methods. The research methodology chapter details the approach taken to investigate and analyze EOR techniques for mature oil fields. It includes information on data collection, analysis tools, simulation models, and field experiments conducted to evaluate the performance of different EOR methods. The chapter also discusses the criteria used to compare and assess the efficiency and applicability of EOR technologies. In the findings discussion chapter, the results of the study are presented, highlighting the outcomes of field tests, numerical simulations, and case studies on EOR applications in mature oil fields. The effectiveness of thermal, chemical, and gas injection methods in enhancing oil recovery rates and extending the productive life of reservoirs is evaluated and discussed in detail. Finally, the conclusion and summary chapter consolidate the key findings of the study, providing insights into the most promising EOR techniques for mature oil fields based on their performance, cost-effectiveness, and environmental impact. Recommendations for future research and practical implications for industry stakeholders are also presented to guide decision-making and investment strategies in EOR projects. In conclusion, this thesis contributes to the body of knowledge on EOR techniques for mature oil fields, offering valuable insights into innovative approaches to maximize oil recovery and optimize reservoir performance. The findings of this study have implications for the sustainable development of mature oil fields and the long-term viability of oil and gas production in the global energy landscape.