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Energies
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New Advances in Low-Energy Processes for Geo-Energy Development: 2nd Edition
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New Advances in Low-Energy Processes for Geo-Energy Development: 2nd Edition

A Special Issue of Energies (ISSN 1996-1073) belonging to the section "H: Geo-Energy".

Deadline for manuscript submissions: closed (15 April 2026) | Viewed by 3039

Editors

Dr. Daoyi Zhu

E-Mail Website
Guest Editor
Faculty of Petroleum, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
Interests: oilfield chemistry; plugging theory and technology; low-energy processes for oil and gas recovery
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yibo Li

E-Mail Website
Guest Editor
Faculty of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
Interests: enhanced oil and gas recovery; oilfield chemistry; chemical flooding; heavy oil development; thermal recovery of heavy oil; gas injection; profile control and water shutoff
Special Issues, Collections and Topics in MDPI journals
Dr. Qingyuan Chen

E-Mail Website
Guest Editor
Faculty of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
Interests: enhanced oil recovery; polymer flooding; active nanofluid; heavy oil upgrading
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The trajectory of industrialization is tightly correlated with geo-energy. Academics place a high value on all kinds of cutting-edge studies. Every breakthrough, whether theoretical or in engineering, has the potential to significantly advance society. This Special Issue seeks frontier and innovative research on the low-energy development of geo-energy resources. Several research studies are presently being conducted on EOR flooding materials, such as polymer, CO2, air, steam and composite methods. Additionally, the study of some low-energy and promising heating reservoir technologies, such as nuclear energy, solar energy, in situ upgrading, and electromagnetic heating, has also gradually increased. Of course, with the continuous innovations in computer and information technology, numerical simulation technology and big data analysis methods also play pivotal roles in the development of high-efficiency and low-energy geological energy.

This Special Issue aims to present and disseminate the most recent advances related to the new advances in low-energy processes for geo-energy development.

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

  • Intelligent well technologies;
  • New technologies in ROP improvement;
  • New technologies in cold production;
  • New technologies in waterflooding for geo-energy resources development;
  • New technologies in polymer flooding;
  • New technologies in emulsion flooding;
  • New technologies in enhanced CO2 injection;
  • New technologies in enhanced air injection;
  • New technologies in enhanced steam injection;
  • New technologies in heating geo-energy reservoirs;
  • New technologies in geo-energy reservoir simulation;
  • Low-energy processes for shale oil recovery;
  • Low-energy processes for tight oil recovery.

You may choose our Joint Special Issue in Processes.

Dr. Daoyi Zhu
Prof. Dr. Yibo Li
Dr. Qingyuan Chen
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-anonymized 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

  • low-energy processes
  • intelligent well technologies
  • cold production
  • cold-enhanced geo-energy recovery
  • thermal-enhanced geo-energy recovery
  • enhanced gas injection
  • enhanced steam injection
  • reservoir simulation of geo-energy
  • shale oil
  • tight oil

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Related Special Issue

Published Papers (3 papers)

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Research

15 pages, 4237 KB  
Article
Stage-Wise Simulation for Operational Stability Evaluation of Seasonal Heat Storage in Abandoned Coal Mines
by Wenying Tang, Jiawei Tang, Qiang Guo, Haiqin Zhang, Changhao Feng, Xiaolin He, Zixu Hu and Xi Wu
Energies 2026, 19(2), 537; https://doi.org/10.3390/en19020537 - 21 Jan 2026
Viewed by 611
Abstract
The development of coal resources has created a large number of underground mined-out spaces, which can be utilized for cross-seasonal thermal storage through underground reservoirs to achieve seasonal heat storage. However, there is currently limited research on the cross-seasonal thermal storage capabilities and [...] Read more.
The development of coal resources has created a large number of underground mined-out spaces, which can be utilized for cross-seasonal thermal storage through underground reservoirs to achieve seasonal heat storage. However, there is currently limited research on the cross-seasonal thermal storage capabilities and thermal storage performance evaluation of coal mine underground reservoirs. This study aims to evaluate the operational stability and long-term performance of a Coal Mine Underground Reservoir Energy Storage System (CMUR-ESS) under realistic geological conditions of the Shendong Coalfield. A multi-physics coupling model, integrating thermal-fluid processes, was developed based on the actual structure of the No. 5-2 coal seam goaf in the Dalinta Mine. Numerical simulations were conducted over five annual cycles, each comprising injection, storage, production, and transition stages. Results demonstrate that the system achieves progressive thermal accumulation, with the volume fraction of water above 70 °C increasing from 75.0% in the first cycle to 88.9% by the fifth cycle at the end of the storage stage. Production temperatures also improved, with peak and final temperatures rising by 6.2% and 6.8%, respectively, after five cycles. The analysis confirms enhanced heat retention and reduced thermal loss over time, indicating robust long-term stability and sustainability of the CMUR-ESS for seasonal energy storage applications. The results of this study can provide a reference for the design and evaluation of CMUR-ESS. Full article
(This article belongs to the Special Issue New Advances in Low-Energy Processes for Geo-Energy Development: 2nd Edition)
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30 pages, 3627 KB  
Article
A Multi-Parameter Integrated Model for Shale Gas Re-Fracturing Candidate Selection
by Wei Liu, Yanchao Li, Pinghua Shu, Cai Deng, Hao Jiang, Haobo Feng, Dechun Chen and Liangliang Wang
Energies 2026, 19(1), 23; https://doi.org/10.3390/en19010023 - 19 Dec 2025
Cited by 1 | Viewed by 988
Abstract
With the continuous advancement of shale gas field development, well productivity following initial hydraulic fracturing often declines due to mechanisms such as proppant embedment and fracture conductivity degradation. However, such wells may still retain significant development potential, making re-fracturing crucial for restoring production [...] Read more.
With the continuous advancement of shale gas field development, well productivity following initial hydraulic fracturing often declines due to mechanisms such as proppant embedment and fracture conductivity degradation. However, such wells may still retain significant development potential, making re-fracturing crucial for restoring production and highlighting the critical importance of accurate candidate selection for re-fracturing. To improve the precision of candidate well selection for re-fracturing in shale gas wells, this study focuses on a shale gas block in the Southern Chuan Basin. Through comparative analysis of existing selection methods, 14 key parameters were finalized. The threshold values for some of these key parameters were recalibrated based on the specific geological, engineering, and production characteristics of the target block in the Southern Chuan Basin. Furthermore, the AHP-GRA (Analytic Hierarchy Process-Gray Relational Analysis) weighting method was integrated to achieve a balance between empirical knowledge and quantitative objectivity. Ultimately, a more targeted, comprehensive, and combined subjective–objective methodology for selecting re-fracturing candidate wells was developed. A computational tool developed in Python 3.9 was utilized to evaluate 13 candidate wells in the block, successfully identifying three high-priority wells for re-fracturing implementation. The reliability of this selection result was validated by analyzing production data before and after re-fracturing, confirming that the production performance of the selected wells showed relatively significant improvement post re-fracturing, with a notable increase in recovery factor. This model provides critical decision-making support for the low-cost and large-scale development of shale gas. It holds significant theoretical and practical value for promoting the secondary development of mature shale gas wells and contributes positively to the efficient utilization of unconventional natural gas resources and energy security. Full article
(This article belongs to the Special Issue New Advances in Low-Energy Processes for Geo-Energy Development: 2nd Edition)
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11 pages, 2986 KB  
Article
Numerical Investigations of Factors Affecting the Heat Energy Productivity of Geothermal Wells Converted from Hydrocarbon Well Pairs
by Boyun Guo and Ekow Edusah
Energies 2025, 18(20), 5487; https://doi.org/10.3390/en18205487 - 17 Oct 2025
Viewed by 709
Abstract
Repurposing end-of-life hydrocarbon wells for geothermal energy generation offers a cost-effective and sustainable strategy to expand low-carbon energy deployment while utilizing existing infrastructure. Fracture-connected horizontal oil and gas well pairs present a promising configuration for enhancing heat transfer in low-permeability reservoirs. Existing modeling [...] Read more.
Repurposing end-of-life hydrocarbon wells for geothermal energy generation offers a cost-effective and sustainable strategy to expand low-carbon energy deployment while utilizing existing infrastructure. Fracture-connected horizontal oil and gas well pairs present a promising configuration for enhancing heat transfer in low-permeability reservoirs. Existing modeling approaches, however, lack the ability to simulate transient heat conduction from rock to fluid in such complex fracture pathways. This work develops a mathematical model that couples time-dependent heat conduction in the reservoir rock with convective heat transport within the fractures. This model enables prediction of heat energy productivity of converted well pairs by accounting for realistic boundary conditions and operational parameters. In applying the model to a representative shale gas field in Louisiana, key factors affecting fluid temperature and thermal power output, including fracture geometry, fluid flow rate, and wellbore insulation, were considered. The results demonstrate the feasibility and sensitivity of converting hydrocarbon wells into geothermal energy production, providing critical insight for optimizing such conversions to support the increased demand for clean, sustainable energy. Full article
(This article belongs to the Special Issue New Advances in Low-Energy Processes for Geo-Energy Development: 2nd Edition)
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