Advances in Technology for Enhancing Oil and Gas Recovery in Shale Reservoirs (2nd Edition)

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

Deadline for manuscript submissions: 29 May 2026 | Viewed by 51

Special Issue Editors


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Guest Editor
Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China
Interests: shale; unconventional reservoir petrophysics; unconventional oil and gas development; CCUS; HDR geothermal development
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Guest Editor
College of Petroleum Engineering, China University of Petroleum-Beljing, Beijing 102249, China
Interests: shale; nanopores; fluid transport; phase behavior; CCUS
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School of Petroleum and Natural Gas Engineering, Changzhou University, Changzhou 213164, China
Interests: shale gas/oil; EOR; water–rock interaction; multiscale transport of methane; CCUS
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Special Issue Information

Dear Colleagues,

From a geological point of view, shale oil and gas reservoirs are different from conventional oil and gas reservoirs. The specific petrophysical and geochemical properties of a shale reservoir endow it with special fluid characteristics and stimulation technologies. Shale oil and gas are abundant, but their recovery rate is low. Therefore, with the growing demand for enhancing the performance of shale oil and gas development, the technology for enhancing oil and gas recovery in shale reservoirs is attracting great interest throughout the petroleum engineering community.

This Special Issue, entitled “Advances in Technology for Enhancing Oil and Gas Recovery in Shale Reservoirs (2nd Edition),” aims to cover the latest advances in the technology and application of enhancing shale oil and gas production, as well as the lastest research on the fluid in shale reservoirs. In this Special Issue, original research articles and reviews are welcome on topics including, but are not limited to, mechanisms, methods, and/ or applications in the following areas:

  • Fluid properties and flow mechanisms in shale reservoirs;
  • Drilling, cementing, and perforating in shale reservoirs;
  • Hydraulic fracturing in shale reservoirs;
  • Formation damage control in shale oil and gas development;
  • Production strategy optimization of shale oil and gas wells;
  • Innovative methods for enhancing shale oil and gas recovery;
  • Carbon capture, storage, and utilization in shale reservoirs.

Thank you for your time, and we hope that you will consider contributing to this Special Issue.

Dr. Mingjun Chen
Prof. Dr. Keliu Wu
Dr. Jiajia Bai
Guest Editors

Manuscript Submission Information

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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 monthly journal published by MDPI.

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Keywords

  • shale gas
  • shale oil
  • enhanced recovery
  • drilling
  • reservoir stimulation
  • fracturing fluid
  • multiscale heat and mass transport
  • pore structure
  • fracture network
  • CCUS

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Published Papers (1 paper)

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Research

15 pages, 3609 KB  
Article
Multiscale Gas Flow Mechanisms in Ultra-Deep Fractured Tight Sandstone Reservoirs with Water Invasion
by Liandong Tang, Yongbin Zhang, Xueni Chen, Qihui Zhang, Mingjun Chen, Xuehao Pei, Yili Kang, Yiguo Zhang, Xingyu Tang, Bihui Zhou, Jun Li, Pandong Tian and Di Wu
Processes 2025, 13(11), 3596; https://doi.org/10.3390/pr13113596 - 7 Nov 2025
Abstract
Ultra-deep fractured tight sandstone reservoirs are key targets for natural gas development, where gas flow is controlled by pore structure, capillary forces, and water saturation. Using the ultra-deep tight sandstones from the Tarim Basin as study object, this paper investigates the gas flow [...] Read more.
Ultra-deep fractured tight sandstone reservoirs are key targets for natural gas development, where gas flow is controlled by pore structure, capillary forces, and water saturation. Using the ultra-deep tight sandstones from the Tarim Basin as study object, this paper investigates the gas flow behavior in matrix and fractured cores under high-temperature, high-pressure, and various water saturation conditions. The controlling factors of gas flow are investigated through scanning electron microscopy, casting thin-section, and high-pressure mercury intrusion measurements. The results show that increasing the water saturation can significantly reduce the permeability. The permeability of matrix and fractured cores decreases by 71.15% and 79.67%, respectively, when water saturation reaches 50%. The gas slippage is negligible, but the effect of gas threshold pressure is significant, which is primarily controlled by the pore structure and water saturation. The threshold pressure gradient of gas flow ranges from 0.0004 to 0.8762 MPa/cm, with the matrix cores exhibiting values approximately 13.21 times higher than the fractured cores. The water phase preferentially occupies the larger pores, forcing gas flow to rely on the finer pores. The pores with a maximum radius of 0.21 μm require 0.66 MPa of driving pressure for gas, whereas pores with a median radius of 0.033 μm require 4.18 MPa. The fracture networks can significantly reduce the lower limit for gas flow, serving as the key flow channels for the efficient development of ultra-deep tight sandstone gas. These findings not only reveal the gas flow mechanisms under water invasion but also provide theoretical and practical guidance for enhancing gas recovery from ultra-deep tight sandstone reservoirs. Full article
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