Integration of Intelligent Technologies and Green Processes in Unconventional Reservoirs

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Petroleum and Low-Carbon Energy Process Engineering".

Deadline for manuscript submissions: 20 July 2026 | Viewed by 517

Special Issue Editors

College of Petroleum Engineering, China University of Petroleum (Beijing), Changping 102249, China
Interests: unconventional oil and gas development; RTA; PTA; fracture characterization and simulation
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Guest Editor
Petroleum Engineering School, Southwest Petroleum University, Chengdu 610500, China
Interests: temperature and pressure testing; oil and gas well completion

Special Issue Information

Dear Colleagues,

The energy sector is undergoing a profound transformation driven by the dual challenges of meeting global energy demand and achieving climate goals. Unconventional reservoirs, such as shale and tight formations, remain crucial to the energy mix, but their development must become more efficient, economical, and environmentally sustainable. Concurrently, emerging energy carriers like hydrogen and carbon capture, utilization, and storage (CCUS) technologies are paving the way for a low-carbon future. The convergence of these fields with artificial intelligence (AI) and big data analytics presents unprecedented opportunities for innovation.

This Special Issue aims to explore the cutting-edge integration of intelligent computational methods with core energy processes, specifically targeting unconventional reservoirs, hydrogen systems, and CCUS. We seek to compile research that demonstrates how AI, machine learning, data-driven modeling, and advanced process integration can optimize operations, enhance predictive capabilities, reduce environmental footprints, and unlock new value streams.

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

  • AI and Machine Learning for Unconventional Reservoirs: application in reservoir characterization, production forecasting, well placement optimization, hydraulic fracturing design, and production data analysis.
  • Data-Driven Modeling for Hydrogen Systems: AI-based models for hydrogen production (e.g., from natural gas with CCUS or electrolysis), storage (in geological formations including depleted reservoirs), transport, and safety management.
  • Smart CCUS and Carbon Management: machine learning for site selection, monitoring, verification, and accounting (MVA) of CO2 storage; optimization of CO2-EOR processes; and lifecycle analysis.
  • Digital Twins and Process Integration: development of digital twins for integrated energy systems, combining unconventional resource development with hydrogen production or CCUS operations.
  • Sustainability and Techno-Economic Analysis: AI-assisted lifecycle assessment and techno-economic optimization of hybrid energy systems involving hydrocarbons, hydrogen, and carbon management.

We invite the submission of high-quality original research articles and comprehensive reviews that address these challenges and showcase novel solutions.

Dr. Yang Wang
Dr. Cao Wei
Guest Editors

Manuscript Submission Information

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Keywords

  • unconventional reservoirs
  • hydrogen
  • carbon capture, utilization and storage (CCUS)
  • artificial intelligence
  • machine learning
  • energy transition

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Published Papers (1 paper)

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Research

20 pages, 3077 KB  
Article
Research on the Main Causes of Water Channeling in High-Pressure Water Injection of Low-Permeability Reservoirs and the Regulation Strategies of the Seepage Field
by Kai Yang, Hualei Xu, Jianyu Li, Ziqi Chen, Jie Wang and Houshun Jiang
Processes 2026, 14(6), 893; https://doi.org/10.3390/pr14060893 - 11 Mar 2026
Viewed by 332
Abstract
High-pressure water injection (HPWI) can rapidly replenish the formation energy of low-permeability reservoirs, but it may trigger multi-scale fractures, leading to premature water breakthrough between injection and production wells. To identify the main causes and regulate the mainstream line (i.e., the preferential flow [...] Read more.
High-pressure water injection (HPWI) can rapidly replenish the formation energy of low-permeability reservoirs, but it may trigger multi-scale fractures, leading to premature water breakthrough between injection and production wells. To identify the main causes and regulate the mainstream line (i.e., the preferential flow path with the highest streamline density/flow rate), a two-zone and five-point numerical model was developed. This model couples the static damage zone (dominated by micro-fractures) and the fracture development zone (dominated by macro-fractures). Through sensitivity analysis, the ways in which micro-fracture damage and macro-fracture geometry control the evolution of seepage patterns and the risk of water breakthrough were quantified. The results show that in the representative scenarios of this paper, micro-fracture damage is mainly associated with an increased risk of water breakthrough by forming equivalent weakening zones and enhancing the directional extension trend of main fractures. The scale of macro-fractures has the strongest correlation with the water breakthrough response. When the fracture scale increases to a certain proportion close to the well spacing, the seepage mode changes from “fracture + matrix cooperation” to “main-fracture-dominated short-circuit channel”. Based on this, a design and verification of a combined control scheme of “chemical profile control + cyclic water injection” was proposed and carried out in well groups with high water cut and strong channeling. Simulations show that this combination helps to weaken the flow conductivity of preferential channels and improve the uniformity of the flow field. This paper can provide technical support for the prevention, control, and early warning of water breakthrough and the regulation of main flow lines in the high-pressure water injection development of similar low-permeability reservoirs. Full article
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