AI-Driven Reservoir Characterization and Predictive Simulation in Shale Plays

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "AI-Enabled Process Engineering".

Deadline for manuscript submissions: 25 August 2026 | Viewed by 1070

Special Issue Editors

State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Interests: shale oil/gas; reservoir stimulation; reservoir characterization; CCUS-CO2 energized fracturing and EOR
Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China
Interests: shale oil; cross-scale flow; mass transfer; numerical method; CO2 displacement

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Guest Editor
State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum-Beijing, Beijing 102249, China
Interests: shale wettability; pore structure; fluid migration
School of Petroleum Engineering, Southwest Petroleum University, Chengdu 610500, China
Interests: fluid flow in porous media; shale gas/coalbed methane; unconventional reservoir permeability evolution; gas adsorption
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Guest Editor
College of Petroleum, China University of Petroleum Beijing at Karamay, Karamay 834000, China
Interests: shale oil/gas; rock mechanics; reservoir characterization; reservoir stimulation

Special Issue Information

Dear Colleagues,

Shale oil and gas reservoirs have emerged as pivotal components in the global energy landscape, making significant contributions to energy security and the transition toward a lower-carbon future. However, the efficient and sustainable development of these unconventional resources is hampered by substantial challenges, including their intricate pore structures, ultra-low permeability, and strong heterogeneity. Accurately characterizing the complex properties of shale formations and developing high-fidelity predictive simulation techniques are, therefore, fundamental to optimizing production strategies and enhancing recovery rates. In this context, artificial intelligence (AI) has evolved into an indispensable and transformative driving force—its ability to process massive multi-dimensional data, uncover hidden correlations, and enable intelligent prediction makes it critical for addressing these inherent challenges, revolutionizing the efficiency, accuracy, and reliability of related technologies.

This Special Issue, titled “AI-Driven Reservoir Characterization and Predictive Simulation in Shale Plays”, focuses on showcasing cutting-edge innovations that leverage AI to advance the understanding and development of shale oil and gas systems. We solicit high-quality original research and review articles centered on AI-integrated experimental characterization, theoretical modeling, and predictive numerical simulation. The scope of this issue encompasses, but is not limited to, the following topics:

  • Multi-scale pore structure characterization (e.g., AI-driven nano/micro-scale imaging interpretation, machine learning-optimized pore network modeling, digital core characterization, etc.);
  • Evaluation of shale petrophysical and geomechanical properties (e.g., prediction of porosity, permeability, organic matter content, brittleness, and anisotropy via machine learning algorithms or deep neural networks);
  • Analysis of fluid behavior in shale nanopores (e.g., prediction of adsorption/desorption, simulation of phase behavior, modeling of confinement effects, and AI-assisted analysis of fluid-rock interactions);
  • Advanced numerical simulation and modeling (e.g., multi-physics coupling simulation, machine learning-driven discrete fracture networks modeling, upscaling methods, and AI-enabled data-driven simulation);
  • Hydraulic fracture propagation prediction and complex fracture network characterization (e.g., real-time prediction of fracture propagation via AI models, characterization of complex fracture networks);
  • Enhanced oil recovery (EOR) mechanisms and simulation in shale reservoirs (e.g., AI-driven design of EOR schemes, simulation of EOR effectiveness);
  • Integration of characterization data into predictive simulation models (e.g., data fusion for history matching, intelligent production forecasting based on integrated data with AI support).

We warmly invite submissions of original research and review articles that explore the innovative application of AI in shale reservoir characterization and predictive simulation. Specifically, works that demonstrate how AI can deepen the understanding of shale reservoir behaviors, improve the predictive capability of reservoir performance, and drive breakthroughs in efficient and sustainable shale oil and gas development are highly encouraged.

Dr. Hongyan Qu
Dr. Dongqi Ji
Dr. Zhiye Gao
Dr. Jie Zeng
Dr. Yan Peng
Guest Editors

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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. Processes 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 2400 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

  • shale
  • artificial intelligence (AI)
  • pore structure
  • numerical simulation
  • fracture propagation
  • enhanced oil recovery
  • fluid migration

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Published Papers (2 papers)

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Research

21 pages, 25391 KB  
Article
A Novel Model for the Prediction of Reservoir Gas Thickness Distribution in Tight Sandstone Reservoir
by Yan Zhang, Dejie Cao, Xiehua Zou and Kai Xing
Processes 2026, 14(8), 1288; https://doi.org/10.3390/pr14081288 - 17 Apr 2026
Viewed by 318
Abstract
With the increasing complexity of reservoir formation mechanisms and the increasing difficulty of exploration, accurate reservoir prediction is critical for oil and gas exploration. However, traditional methods struggle to simultaneously achieve multi-source data fusion and spatial structure characterization. This study proposes a sequential [...] Read more.
With the increasing complexity of reservoir formation mechanisms and the increasing difficulty of exploration, accurate reservoir prediction is critical for oil and gas exploration. However, traditional methods struggle to simultaneously achieve multi-source data fusion and spatial structure characterization. This study proposes a sequential stochastic fuzzy simulation (SSFS) method that integrates fuzzy recognition and sequential stochastic simulation to fuse well logging and seismic data while preserving geological spatial structure. In order to verify the effectiveness of the method, a tight sandstone reservoir in the D block of the Sulige gas field, Ordos Basin, is taken as the research target. Four gas-sensitive seismic attributes are selected, and the SSFS model is then constructed by fusing well–seismic multi-source data. Validation shows high consistency between predicted and measured gas thickness, with an R2 of 0.955 and an RMSE of 0.866 m, consistent with the dynamic gas testing results of horizontal wells. Compared with the conventional geostatistical and machine learning methods, the SSFS method achieves higher accuracy, stronger spatial rationality, and better generalization ability in blind-well validation. Uncertainty analysis (mean, SD, CV, P10-P50-P90) confirms low uncertainty and high reliability. Therefore, the proposed method is reliable and effective, providing new insights for reservoir prediction. Full article
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13 pages, 2158 KB  
Article
A Gaussian Process Regression Model for Estimating Pore Volume in the Longmaxi Shale Formation
by Sirong Zhu, Ning Li, Zhiwen Huang, Mingze Sun, Jie Zeng and Wenxi Ren
Processes 2026, 14(5), 798; https://doi.org/10.3390/pr14050798 - 28 Feb 2026
Viewed by 365
Abstract
Shale pore volume is a critical parameter for reservoir evaluation. Accurate and rapid determination of this parameter is essential for identifying sweet spots and performing reliable reserve estimations. Currently, laboratory experiments remain the standard for determining pore volume; however, these methods are typically [...] Read more.
Shale pore volume is a critical parameter for reservoir evaluation. Accurate and rapid determination of this parameter is essential for identifying sweet spots and performing reliable reserve estimations. Currently, laboratory experiments remain the standard for determining pore volume; however, these methods are typically time-consuming, costly, and labor-intensive. To complement traditional experimental approaches, we developed a Gaussian Process Regression (GPR) model to estimate shale pore volume based on mineralogical compositions. The model is specifically tailored for the Longmaxi shale, utilizing six input features: the contents of Total Organic Carbon (TOC), clay, quartz, feldspar, carbonate, and pyrite. The GPR model achieved a mean absolute percentage error (MAPE) of 9.97% on the testing dataset, while it yielded an MAPE of 17.66% when applied to an additional independent validation set. Finally, a sensitivity analysis using the Shapley additive explanations was conducted to elucidate the influence of mineralogical constituents on shale pore volume. Full article
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