Chemical Flooding in EOR: Practical and Simulation Insights

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Chemical Processes and Systems".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1177

Special Issue Editors


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Guest Editor
Egyptian Petroleum Research Institute, Cairo 11727, Egypt
Interests: polymer nanocomposites; petroleum process simulation; EOR; PVT; molecular simulation

E-Mail Website
Guest Editor
Mining and Petroleum Engineering Department, Faculty of Engineering, Al-Azhar University, Cairo, Egypt
Interests: EOR; petroleum engineering; reservoir characterization

Special Issue Information

Dear Colleagues,

This proposal aims to explore the multifaceted realm of chemical flooding in Enhanced Oil Recovery (EOR) by integrating practical experiences with cutting-edge simulation insights. With a focus on the synergy between theory and application, this issue seeks to illuminate the latest advancements, challenges, and best practices in chemical flooding techniques across diverse reservoir conditions. Contributions are encouraged to delve into the practical implementation of chemical flooding methods, elucidating field-scale successes and limitations, while also delving into the intricate simulations that underpin these strategies, offering invaluable insights into reservoir behavior, fluid dynamics, and optimization strategies. By bridging the gap between theory and practice, this special issue endeavors to enhance understanding, foster innovation, and propel the field of chemical flooding towards sustainable and efficient EOR solutions.

Chemical flooding in Enhanced Oil Recovery (EOR) encompasses a series of advanced methodologies that aim to increase the extraction of oil from reservoirs by using chemical solutions to improve the displacement efficiency of the crude oil. This technique is a critical part of the broader spectrum of EOR methods, standing out due to its potential to unlock oil that remains trapped in reservoir rocks after primary and secondary recovery phases. The discussion on chemical flooding can be broadly categorized into two main areas: practical applications and simulation insights.

Practical Applications: In the realm of practical applications, chemical flooding involves the injection of chemicals such as polymers, surfactants, and alkaline substances into oil reservoirs. These chemicals help to reduce the surface tension between water and oil, alter the rock wettability, or increase the viscosity of the displacing water, thereby improving oil recovery. Real-world implementations of chemical flooding require detailed planning and consideration of various factors such as the chemical compatibility with the reservoir rock and fluid, injection strategies, and economic viability. The successes and limitations observed in field-scale applications provide valuable lessons and case studies for the industry. These practical insights are crucial for understanding the operational challenges and for fine-tuning the application of chemical EOR techniques in different geological settings.

Simulation Insights: On the simulation side, advanced modeling and computational simulations play a pivotal role in understanding and optimizing chemical flooding processes. Simulations are used to predict how chemicals will behave within the reservoir, providing insights into fluid dynamics, phase behavior, and interaction effects between the injected chemicals and the reservoir fluids and rocks. These models help in optimizing the type and concentration of chemicals used, the injection schedule, and other operational parameters. Simulation tools can also forecast the economic outcomes of chemical EOR projects by analyzing cost-efficiency ratios and potential increases in recovery rates.

Dr. Abdelaziz El-hoshoudy
Dr. Sayed mohammed Gomaa
Guest Editors

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Keywords

  • enhanced oil recovery
  • polymeric composites
  • biopolymer flooding
  • field-scale simulation
  • theoretical modelling of water flooding
  • alkaline/surfactant/polymer flooding
  • sweep and displacement efficiency
  • molecular simulation

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Published Papers (1 paper)

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Research

17 pages, 3682 KiB  
Article
Research on the Phase Behavior of Multi-Component Thermal-Fluid-Heavy Oil Systems
by Xiangji Dou, Mingjie Liu, Xinli Zhao, Yanfeng He, Erpeng Guo, Jiahao Lu, Borui Ma and Zean Chen
Processes 2024, 12(9), 2047; https://doi.org/10.3390/pr12092047 - 22 Sep 2024
Viewed by 578
Abstract
Multi-component thermal luid technology optimizes development effects and has a strong adaptability, providing a new choice for the efficient development of heavy oil reservoirs. However, due to the significant differences between the phase behavior of multi-component thermal-fluid-heavy oil systems and conventional systems, and [...] Read more.
Multi-component thermal luid technology optimizes development effects and has a strong adaptability, providing a new choice for the efficient development of heavy oil reservoirs. However, due to the significant differences between the phase behavior of multi-component thermal-fluid-heavy oil systems and conventional systems, and the lack of targeted and large-scale research, key issues such as the phase behavior of these systems are unclear. This research studies the phase behavior and influencing factors of emulsions and foamy oil in a multi-component thermal-fluid-heavy oil system through high-temperature and high-pressure PVT experiments, revealing the characteristics of the system’s special phase behavior. In the heavy oil emulsion system, the water content directly affects changes in the system’s phase state. The higher the temperature, the larger the phase transition point, and the two are positively correlated. As the stirring speed increases, the phase transition point first increases and then decreases. The amount of dissolved gas is negatively correlated with the size of the phase transition point, and dissolution can form foamy oil. In the heavy oil–foamy oil system, the dissolution capacity of CO2 is greater than that of multi-component gases, which is greater than that of N2. A high water content and high temperature are not conducive to the dissolution of multi-component gases. While an increase in stirring speed is beneficial for the dissolution of gases, there are limitations to its enhancement ability. Therefore, the development of multi-component thermal fluids should avoid the phase transition point of emulsions and promote the dissolution of multi-component gases. Full article
(This article belongs to the Special Issue Chemical Flooding in EOR: Practical and Simulation Insights)
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