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Enhanced Oil Recovery: Numerical Simulation and Deep Machine Learning

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "H: Geo-Energy".

Deadline for manuscript submissions: 30 May 2025 | Viewed by 1624

Special Issue Editors


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Guest Editor
Department of Chemical & Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
Interests: unconventional resources; thermal recovery of heavy oil; underground H2 storage; CO2 storage; numerical simulation
College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Interests: unconventional resources; thermal recovery of heavy oil; underground coal gasification; CO2 storage; numerical simulation
Special Issues, Collections and Topics in MDPI journals
Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
Interests: unconventional resources; thermal recovery of heavy oil; numerical simulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Enhanced Oil Recovery (EOR) represents a critical aspect of petroleum engineering, as it aims to maximize the extraction of hydrocarbons from existing reservoirs. With the continuous growth in energy demand, efficient and effective EOR technologies are becoming increasingly crucial. Conventional methods, while effective, often face limitations in terms of their cost, environmental impact, and recovery efficiency. This is where the integration of numerical simulation and deep machine learning offers transformative potential.

Numerical simulation has long been a cornerstone in the planning and optimization of EOR processes. It allows for the detailed modelling of reservoir behaviours, the prediction of fluid flow, and assessment of various recovery techniques under different scenarios. However, the complexity and variability of geological formations often pose significant challenges to these simulations.

Deep machine learning, with its ability to handle large datasets and uncover intricate patterns, provides a powerful complement to numerical simulations. By leveraging advanced algorithms and computational power, machine learning can enhance predictive accuracy, optimize operational parameters, and even identify novel EOR strategies that were previously unattainable. The synergy between these two technologies promises a new era of innovation in EOR, driving both efficiency and sustainability.

This Special Issue aims to present and disseminate the latest advancements in the application of numerical simulation and deep machine learning to EOR. We invite researchers and practitioners to contribute findings, methodologies, and case studies that demonstrate the potential and challenges of integrating these technologies into EOR practices.

Topics of interest for publication include, but are not limited to, the following:

  • Advanced numerical simulation techniques for EOR;
  • Machine learning algorithms and their application in EOR;
  • Hybrid methods combining numerical simulation and machine learning;
  • Case studies of successful EOR implementations using these technologies;
  • Optimization of EOR processes through simulation and machine learning;
  • Predictive modelling of reservoir behaviour using deep learning;
  • Data-driven approaches to enhance recovery efficiency;
  • Integration of real-time data with simulation models;
  • Environmental impact assessment using advanced modelling techniques;
  • Future trends and challenges in EOR technology.

We encourage potential authors to submit their original research, review articles, and case studies that explore these cutting-edge approaches. By sharing your work, you will contribute to a collective endeavour to push the boundaries of what is possible in enhanced oil recovery, ensuring a more efficient and sustainable future.

Dr. Maojie Chai
Dr. Min Yang
Dr. Jinze Xu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • enhanced oil recovery (EOR)
  • numerical simulation
  • machine learning
  • data-driven approach

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Published Papers (2 papers)

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Research

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15 pages, 5818 KiB  
Article
Nano-Water-Alternating-Gas Simulation Study Considering Rock–Fluid Interaction in Heterogeneous Carbonate Reservoirs
by Seungmo Ko, Hyeri Park and Hochang Jang
Energies 2024, 17(19), 4846; https://doi.org/10.3390/en17194846 - 27 Sep 2024
Viewed by 767
Abstract
In carbonate reservoirs, nanoparticles can adhere to rock surfaces, potentially altering the rock wettability and modifying the absolute permeability. In the water-alternating-gas (WAG) process, the introduction of nanoparticles into the water phase, termed nano-water-alternating gas (NWAG), is a promising approach for enhancing oil [...] Read more.
In carbonate reservoirs, nanoparticles can adhere to rock surfaces, potentially altering the rock wettability and modifying the absolute permeability. In the water-alternating-gas (WAG) process, the introduction of nanoparticles into the water phase, termed nano-water-alternating gas (NWAG), is a promising approach for enhancing oil recovery and CO2 storage. The NWAG process can alter rock wettability and absolute permeability through the adsorption of nanoparticles on the rock surface. This study investigated the efficiency of the NWAG method, which utilizes nanofluids in CO2-enhanced oil recovery (EOR) processes to simultaneously recover oil and store CO2 using 1D core and 3D heterogeneous reservoir models. The simulation results of the 1D core model showed that applying the NWAG method enhanced both oil recovery and CO2 storage efficiency by increasing to 3%. In a 3D reservoir model, a Dykstra–Parsons coefficient of 0.4 was selected to represent reservoir heterogeneity. Additionally, the capillary trapping of CO2 during WAG injection was computed using Larsen and Skauge’s three-phase relative permeability hysteresis model. A sensitivity analysis was performed using the NWAG ratio, slug size, injection period, injection cycle, and nanofluid concentration. The results confirmed an increase of 0.8% in oil recovery and 15.2% in CO2 storage compared with the conventional WAG process. This mechanism suggests that nanofluids can enhance oil recovery and expand CO2 storage, improving the efficiency of both the oil production rate and CO2 storage compared to conventional WAG methods. Full article
(This article belongs to the Special Issue Enhanced Oil Recovery: Numerical Simulation and Deep Machine Learning)
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Review

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25 pages, 7600 KiB  
Review
A Review of Enhanced Methods for Oil Recovery from Sediment Void Oil Storage in Underground Salt Caverns
by Xinxing Wei, Xilin Shi, Yinping Li, Peng Li, Mingnan Xu, Yashuai Huang and Yang Hong
Energies 2025, 18(2), 360; https://doi.org/10.3390/en18020360 - 16 Jan 2025
Viewed by 458
Abstract
Salt caverns are recognized as an excellent medium for energy storage. However, due to the unique characteristics of China’s bedded salt formations, which contain numerous salt layers and a high concentration of insoluble impurities, significant accumulation at the bottom of salt caverns occurs, [...] Read more.
Salt caverns are recognized as an excellent medium for energy storage. However, due to the unique characteristics of China’s bedded salt formations, which contain numerous salt layers and a high concentration of insoluble impurities, significant accumulation at the bottom of salt caverns occurs, leading to the formation of extensive sediment voids. These sediment voids offer a potential space for underground oil storage, referred to as sediment void oil storage (SVOS). Oil recovery process from these sediment voids is a critical process. This paper summarizes the oil recovery technologies for SVOS and identifies four key factors—geological evaluation, stability evaluation, tightness evaluation, and oil storage capacity—all of which influence enhance oil recovery from sediment voids. This paper also outlines the overall oil recovery process, presents oil recovery experiments, and discusses oil recovery methods for enhancing oil recovery from sediment void. Additionally, it addresses the challenges of oil recovery in SVOS and explores its potential advantages and applications. The findings suggest that salt cavern sediment voids, as a promising storage space, provide a new approach to realize oil recovery and can overcome the limitations associated with cavern construction in high-impurity salt mines. The oil recovery from the sediment void is feasible, and China has rich rock salt and other convenient conditions to develop SVOS technology. Full article
(This article belongs to the Special Issue Enhanced Oil Recovery: Numerical Simulation and Deep Machine Learning)
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