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Developments of acid fracturing technology for enhanced geothermal systems: A review

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  • Liu, Zeyu
  • Qi, Ning
  • Jiang, Ping
  • Li, Aihua
  • Li, Xiaqing

Abstract

In Enhanced Geothermal Systems (EGS), heat extraction efficiency can be improved through various reservoir stimulation techniques. Acid fracturing is widely used in the petroleum industry. It combines the advantages of other commonly used stimulation methods to stimulate reservoirs and reduce the risk of induced seismicity effectively. This technique is promising in geothermal reservoirs, especially in carbonate formations. A thorough understanding of the stimulation mechanisms and practical experiences with acid fracturing in EGS will facilitate the application of this technology. This paper initially provides an overview of stimulation strategies in EGS, followed by an introduction to the fundamental principles of acid fracturing. It examines the stimulation mechanisms through three lenses: hydraulic, chemical reaction, and thermal effects. The paper compares acid fracturing with other established stimulation techniques, analyzing the distinct characteristics and applicability of each approach, and summarizing the benefits. Subsequently, it reviews acid fracturing processes applied in geothermal projects or those with potential for future use. A review of typical EGS acid fracturing projects globally is presented, highlighting the specific processes and stimulation outcomes of these projects. Finally, future research directions are presented. The review shows that the stimulation mechanism still needs to be further clarified; numerical simulation studies need to be expanded from conventional to deep and three-dimensional acid fracturing, and mature simulation tools need to be developed; high-performance acid systems applicable to a wider range of lithologies need to be developed; and the role of carbon dioxide in acid fracturing continues to be explored.

Suggested Citation

  • Liu, Zeyu & Qi, Ning & Jiang, Ping & Li, Aihua & Li, Xiaqing, 2025. "Developments of acid fracturing technology for enhanced geothermal systems: A review," Applied Energy, Elsevier, vol. 388(C).
    • Handle: RePEc:eee:appene:v:388:y:2025:i:c:s0306261925003800
    DOI: 10.1016/j.apenergy.2025.125650
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    1. Jiang, Fangming & Chen, Jiliang & Huang, Wenbo & Luo, Liang, 2014. "A three-dimensional transient model for EGS subsurface thermo-hydraulic process," Energy, Elsevier, vol. 72(C), pages 300-310.
    2. Luo, Jin & Zhu, Yongqiang & Guo, Qinghai & Tan, Long & Zhuang, Yaqin & Liu, Mingliang & Zhang, Canhai & Zhu, Mingcheng & Xiang, Wei, 2018. "Chemical stimulation on the hydraulic properties of artificially fractured granite for enhanced geothermal system," Energy, Elsevier, vol. 142(C), pages 754-764.
    3. Mahmoodpour, Saeed & Singh, Mrityunjay & Bär, Kristian & Sass, Ingo, 2022. "Thermo-hydro-mechanical modeling of an enhanced geothermal system in a fractured reservoir using carbon dioxide as heat transmission fluid- A sensitivity investigation," Energy, Elsevier, vol. 254(PB).
    4. Sutra, Emilie & Spada, Matteo & Burgherr, Peter, 2017. "Chemicals usage in stimulation processes for shale gas and deep geothermal systems: A comprehensive review and comparison," Renewable and Sustainable Energy Reviews, Elsevier, vol. 77(C), pages 1-11.
    5. Lu, Shyi-Min, 2018. "A global review of enhanced geothermal system (EGS)," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P2), pages 2902-2921.
    6. Xu, Haoran & Cheng, Jingru & Zhao, Zhihong & Lin, Tianyi & Liu, Guihong & Chen, Sicong, 2021. "Coupled thermo-hydro-mechanical-chemical modeling on acid fracturing in carbonatite geothermal reservoirs containing a heterogeneous fracture," Renewable Energy, Elsevier, vol. 172(C), pages 145-157.
    7. Tiankui Guo & Zhanqing Qu & Facheng Gong & Xiaozhi Wang, 2017. "Numerical Simulation of Hydraulic Fracture Propagation Guided by Single Radial Boreholes," Energies, MDPI, vol. 10(10), pages 1-21, October.
    8. Zhu, Jialing & Hu, Kaiyong & Lu, Xinli & Huang, Xiaoxue & Liu, Ketao & Wu, Xiujie, 2015. "A review of geothermal energy resources, development, and applications in China: Current status and prospects," Energy, Elsevier, vol. 93(P1), pages 466-483.
    9. Rongchen Tong & Hejuan Liu & Jianfeng Liu & Yingkun Shi & Lihuan Xie & Shengnan Ban, 2022. "Meso-Mechanical Characteristics of Granite with Natural Cracks after Mud Acid Corrosion," Energies, MDPI, vol. 15(3), pages 1-19, January.
    10. Song, Guofeng & Song, Xianzhi & Ji, Jiayan & Wu, Xiaoguang & Li, Gensheng & Xu, Fuqiang & Shi, Yu & Wang, Gaosheng, 2022. "Evolution of fracture aperture and thermal productivity influenced by chemical reaction in enhanced geothermal system," Renewable Energy, Elsevier, vol. 186(C), pages 126-142.
    11. Chen, Jingyi & Xu, Tianfu & Jiang, Zhenjiao & Feng, Bo & Liang, Xu, 2020. "Reducing formation damage by artificially controlling the fluid-rock chemical interaction in a double-well geothermal heat production system," Renewable Energy, Elsevier, vol. 149(C), pages 455-467.
    12. Soltani, M. & Moradi Kashkooli, Farshad & Alian Fini, Mehdi & Gharapetian, Derrick & Nathwani, Jatin & Dusseault, Maurice B., 2022. "A review of nanotechnology fluid applications in geothermal energy systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).
    13. Yuan Zhang & Jianyang Chen & Zhongbao Wu & Yuxiang Xiao & Ziyi Xu & Hanlie Cheng & Bin Zhang, 2024. "Effect Evaluation of Staged Fracturing and Productivity Prediction of Horizontal Wells in Tight Reservoirs," Energies, MDPI, vol. 17(12), pages 1-10, June.
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