Enhanced Oil Recovery Techniques for Mature Oilfields: A Comparative Study

Thesis Abstract

Abstract
Enhanced Oil Recovery (EOR) techniques have become increasingly important in the petroleum industry, especially for mature oilfields where conventional recovery methods have been insufficient. This thesis presents a comprehensive comparative study of various EOR techniques applicable to mature oilfields, aiming to analyze their effectiveness, advantages, and limitations. The research focuses on evaluating the performance of different EOR methods in enhancing oil recovery rates, optimizing production, and extending the economic life of mature oilfields. The study begins with a detailed introduction to the significance of EOR techniques in the context of mature oilfields, highlighting the challenges faced by the industry and the increasing demand for efficient recovery methods. The background of the study provides a comprehensive overview of the historical development of EOR techniques and their evolution over time. This sets the stage for understanding the current state of EOR applications in mature oilfields. The problem statement addresses the critical issues faced by operators in maximizing oil recovery from mature fields and the need for innovative EOR solutions. The objectives of the study are outlined to compare and evaluate the performance of different EOR techniques, identify key factors influencing their success, and provide recommendations for practical implementation in mature oilfields. The limitations of the study are acknowledged, including data availability constraints, technical complexities of EOR methods, and the inherent uncertainties associated with field-scale applications. The scope of the study defines the boundaries within which the research is conducted, focusing on specific EOR techniques and case studies of mature oilfields. The significance of the study lies in its potential to contribute valuable insights to the petroleum industry, guiding decision-makers in selecting the most suitable EOR techniques for maximizing oil recovery from mature fields. The structure of the thesis is outlined to provide a roadmap for navigating through the research findings, analysis, and conclusions. The literature review explores existing knowledge and research on EOR techniques, covering a wide range of methods such as thermal, chemical, and miscible gas injection. The research methodology outlines the approach taken to collect and analyze data, including case studies, simulation models, and field trials. The discussion of findings delves into the comparative analysis of different EOR techniques, highlighting their performance metrics, cost-effectiveness, and environmental impacts. The conclusions drawn from the study emphasize the key factors influencing the success of EOR applications in mature oilfields and provide recommendations for future research and industry practices. In summary, this thesis offers a comprehensive examination of Enhanced Oil Recovery techniques for mature oilfields, providing valuable insights into the effectiveness and feasibility of different methods. The findings contribute to the optimization of oil production in mature fields, ensuring sustainable resource utilization and economic viability for the petroleum industry.