Thesis Abstract

Abstract
Enhanced Oil Recovery (EOR) techniques play a crucial role in maximizing oil production from mature oilfields. This thesis explores various EOR methods and technologies that can be implemented in mature oilfields to enhance oil recovery efficiency. The research focuses on understanding the challenges associated with mature oilfields, identifying suitable EOR techniques, and evaluating their effectiveness in enhancing oil recovery rates. The introduction provides a background of the study, highlighting the importance of EOR in the oil and gas industry. The problem statement addresses the declining production rates in mature oilfields and the need for innovative EOR solutions to revitalize these reservoirs. The objectives of the study include assessing different EOR techniques, analyzing their applicability to mature oilfields, and evaluating their economic and environmental impacts. The literature review delves into existing research on EOR techniques such as thermal methods, chemical injection, and gas injection. It examines case studies and best practices in applying these techniques to mature oilfields, highlighting their successes and challenges. The review also discusses emerging technologies and innovative approaches in EOR that show promise for improving oil recovery efficiency. The research methodology outlines the approach taken to evaluate and compare different EOR techniques for mature oilfields. It includes data collection methods, simulation modeling, and economic analysis to assess the feasibility and effectiveness of each EOR method. The methodology also considers factors such as reservoir characteristics, fluid properties, and operational constraints that influence the selection of EOR techniques. The discussion of findings presents the results of the research, including the performance of various EOR techniques in enhancing oil recovery rates in mature oilfields. It analyzes the economic viability, environmental impact, and operational considerations of each EOR method, providing insights into their practical implementation and potential benefits for oilfield operators. In conclusion, this thesis summarizes the key findings and implications of the research on EOR techniques for mature oilfields. It highlights the importance of adopting innovative EOR solutions to sustain oil production and maximize resource recovery from aging reservoirs. The thesis contributes to the body of knowledge on EOR technologies and provides recommendations for future research and industry applications in the field of petroleum engineering.

Thesis Overview

The project titled "Enhanced Oil Recovery Techniques for Mature Oilfields" aims to investigate and analyze advanced methods to maximize oil recovery from mature oilfields. As oilfields mature, the natural pressure within the reservoir decreases, leading to decreased oil production rates. Enhanced oil recovery (EOR) techniques are crucial in such situations to extract additional oil that is otherwise difficult to recover using conventional methods. This research will focus on exploring and evaluating various EOR techniques that can be applied to mature oilfields to enhance oil production and extend the economic life of these reservoirs. The research will begin with a comprehensive literature review to provide a detailed understanding of the existing EOR techniques and their applications in mature oilfields. This review will cover a wide range of topics, including thermal methods (such as steam injection and in-situ combustion), chemical methods (such as polymer flooding and surfactant flooding), and gas injection methods (such as carbon dioxide and nitrogen injection). By synthesizing the findings from previous studies, this research will identify the most promising EOR techniques for mature oilfields based on their effectiveness, feasibility, and economic viability. Following the literature review, the research methodology will be developed to guide the investigation process. This will include selecting a suitable mature oilfield as a case study, conducting field experiments or simulations to test the selected EOR techniques, and analyzing the results to evaluate their impact on oil recovery efficiency. The research methodology will also consider factors such as reservoir characteristics, fluid properties, well configuration, and environmental considerations to ensure the applicability and sustainability of the proposed EOR techniques. The subsequent chapters will delve into the discussion of findings, presenting the results of the field experiments or simulations conducted to assess the effectiveness of the selected EOR techniques. The discussion will analyze key performance indicators such as oil recovery factor, sweep efficiency, pressure maintenance, and production rates to compare the outcomes of different EOR methods. This analysis will provide insights into the strengths and limitations of each technique and offer recommendations for optimizing their implementation in mature oilfields. Finally, the research will conclude with a summary of the key findings, highlighting the most effective EOR techniques for maximizing oil recovery in mature oilfields. The conclusions drawn from this research will contribute to the existing body of knowledge on EOR practices and provide valuable insights for oilfield operators, engineers, and policymakers seeking to enhance the productivity and sustainability of mature oil reservoirs.