Enhanced Oil Recovery Techniques for Heavy Oil Reservoirs

Thesis Abstract

Abstract
Enhanced Oil Recovery (EOR) techniques play a crucial role in maximizing hydrocarbon production from heavy oil reservoirs, which are characterized by their high viscosity and low mobility. This thesis focuses on investigating and evaluating various EOR methods tailored specifically for heavy oil reservoirs to improve recovery rates and enhance overall field economics. The study delves into the current challenges faced in heavy oil recovery, such as poor sweep efficiency and high production costs, and aims to address these issues through innovative EOR strategies. The research begins with a comprehensive review of existing literature on heavy oil properties, reservoir characteristics, and conventional recovery methods. This literature review highlights the limitations of primary and secondary recovery techniques in heavy oil reservoirs, setting the stage for exploring advanced EOR methods. Key aspects covered in this section include thermal methods, chemical flooding, gas injection, and hybrid techniques, providing insights into their mechanisms, benefits, and applications in heavy oil reservoirs. Moving forward, the thesis outlines the research methodology employed to analyze and compare different EOR techniques for heavy oil reservoirs. The methodology encompasses laboratory experiments, numerical simulations, and field case studies to assess the effectiveness and feasibility of implementing various EOR methods in real-world scenarios. The study also considers factors such as reservoir heterogeneity, fluid properties, and well configuration in designing optimal EOR strategies. The findings from the research are presented in detail in the discussion section, which evaluates the performance of different EOR techniques in heavy oil reservoirs based on recovery efficiency, cost-effectiveness, and environmental impact. The analysis includes a comparative assessment of thermal, chemical, and gas-based EOR methods, highlighting their potential for enhancing oil recovery rates and extending the productive life of heavy oil fields. Additionally, the discussion addresses practical challenges and implementation considerations associated with each EOR method. In conclusion, this thesis provides valuable insights into the application of EOR techniques for maximizing oil recovery from heavy oil reservoirs. By exploring a range of innovative EOR methods and evaluating their efficacy in challenging reservoir conditions, the study contributes to the advancement of sustainable energy production and resource management in the oil and gas industry. The research outcomes offer practical recommendations for oil operators and engineers seeking to optimize production from heavy oil reservoirs while minimizing environmental impact and operational costs.