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Reservoir Geology: From Technological Breakthroughs to Cross-Domain Implementations

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Earth Sciences".

Deadline for manuscript submissions: 20 May 2026 | Viewed by 2302

Special Issue Editors

School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
Interests: efficient exploration and in-situ conversion technologies for unconventional oil and gas resources, deep drilling technology and equipment
School of Energy Resources, China University of Geosciences (Beijing), Beijing 100083, China
Interests: unconventional oil and gas geology; fine-grained sedimentology; stratigraphy; sedimentary geochemistry

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Guest Editor
School of Energy Resources, China University of Geosciences (Beijing), Beijing 100083, China
Interests: petroleum geochemistry; reservoir geochemistry; unconventional oil and gas geology; petroleum migration and accumulation

Special Issue Information

Dear Colleagues,

This Special Issue aims to explore frontier progress and integrative methodologies in reservoir geology, with a particular emphasis on unconventional resources such as oil shale, shale oil and gas, hydrate, tar-rich coal, coalbed methane, and the characteristics of deep high-temperature, high-pressure reservoirs. As energy exploration and development advance into unconventional resources, deep strata, and deepwater environments, these resources play an increasingly critical role in the global energy landscape, yet their complex geological nature and unique extraction challenges require innovative technological solutions and cross-disciplinary synergies.

We invite contributions that address fundamental and applied aspects of reservoir geology, including, but not limited to, novel in situ conversion technologies for unconventional hydrocarbons, advanced characterization techniques for reservoir properties, fine description of trapped hydrocarbons, novel reservoir modification techniques, new generations of enhanced recovery as well as green and efficient exploitation techniques, deep rock mechanics, rock-breaking mechanisms under high temperature and pressure, and artificial intelligence applications in unconventional and deep oil and gas reservoirs. Studies that integrate geoscience, engineering, data science, and economics to enable efficient and sustainable development of unconventional reservoirs are especially encouraged.

This Special Issue seeks to bridge traditional disciplinary boundaries and foster dialogue among geoscientists, engineers, and policymakers. We welcome original research, reviews, and case studies that demonstrate how technological breakthroughs can be effectively translated into cross-domain implementations, ultimately contributing to a smarter and greener energy future.

Recommended topics include, but are not limited to, the following:

  • New in situ conversion technology;
  • High-resolution reservoir characterization;
  • Eco-friendly extraction and utilization techniques;
  • Integration of geology, geochemistry, engineering, and digital technologies;
  • Fine description of trapped hydrocarbons;
  • Reservoir geochemistry;
  • Novel reservoir modification techniques;
  • New generation of enhanced recovery;
  • Deep reservoir rock mechanics;
  • Rock-breaking mechanisms in deep reservoirs;
  • New equipment and technologies for deep reservoirs;
  • AI and machine learning in predictive modeling;
  • Applications of artificial intelligence in geo-energy.

Dr. Shaotao Xu
Dr. Yifan Li
Dr. Xiong Cheng
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 250 words) can be sent to the Editorial Office for assessment.

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. Applied Sciences 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

  • unconventional resources
  • deep reservoirs
  • in situ conversion technology
  • reservoir geochemistry
  • reservoir characterization
  • reservoir modification
  • artificial intelligence

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Published Papers (1 paper)

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Research

31 pages, 20777 KB  
Article
Depositional Processes and Paleoenvironmental Evolution of the Middle Eocene Lacustrine Shale in Beibu Gulf Basin, South China
by Chengkun Deng, Yifan Li, Zhiqian Gao, Juye Shi, Ruisi Li, Ruoxin Huang, Guocui Li and Xinsheng Wen
Appl. Sci. 2025, 15(20), 11191; https://doi.org/10.3390/app152011191 - 19 Oct 2025
Viewed by 2120
Abstract
This study focuses on the middle Eocene lacustrine shales of the Lower Member 2 of the Liushagang Formation (L–LS2) in the Weixi’nan Depression of the Beibu Gulf Basin. Employing an integrated approach that combines core observation, thin-section analysis, Scanning Electron Microscopy (SEM), X-ray [...] Read more.
This study focuses on the middle Eocene lacustrine shales of the Lower Member 2 of the Liushagang Formation (L–LS2) in the Weixi’nan Depression of the Beibu Gulf Basin. Employing an integrated approach that combines core observation, thin-section analysis, Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), and geochemical proxies, we systematically characterize the lithofacies, sedimentary processes, and paleoenvironmental evolution. Six distinct lithofacies were identified: clay-rich mudstone, calcium-bearing mudstone, clay-rich siltstone, siliceous siltstone, ankerite-bearing sandstone, and siliceous sandstone. Based on depositional processes and structural features, these are grouped into three lithofacies assemblages: interbedded lithofacies assemblage, laminated lithofacies assemblage, and matrix lithofacies assemblage. Vertical facies distribution shows that the interbedded lithofacies assemblage dominates the lower L–LS2, reflecting active faulting, volcanism, a low lake level, prevalent gravity flows, and episodic oxidative conditions. The laminated lithofacies assemblage dominates the middle section and results from the combined influence of chemical and mechanical deposition, indicating fluctuating climate conditions that affected water depth, salinity, and redox dynamics. The upper section is characterized by matrix lithofacies assemblage, representing a stable, deep water, anoxic environment with low energy suspension settling. We propose a depositional model in which tectonics and climate jointly control lacustrine shale deposition. During the middle Eocene, intensified tectonic activity expanded accommodation space and increased clastic input, while climate fluctuations influenced chemical weathering, nutrient supply, and salinity. Together, these factors drove lake deepening and variability, affecting sedimentary energy and redox conditions. This study not only clarifies the sedimentary evolution of L–LS2 but also provides a critical geological framework for lacustrine shale oil exploration. Full article
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