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Theoretical Analysis of the Effect of Electrical Heat In Situ Injection on the Kerogen Decomposition for the Development of Shale Oil Deposits

Author

Listed:
  • Maryelin Josefina Briceño Montilla

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Institute of Earth Sciences, Chinese Academy of Sciences, Beijing 100049, China
    College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Shouding Li

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Institute of Earth Sciences, Chinese Academy of Sciences, Beijing 100049, China
    College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Zhaobin Zhang

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Institute of Earth Sciences, Chinese Academy of Sciences, Beijing 100049, China
    College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Xiao Li

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Institute of Earth Sciences, Chinese Academy of Sciences, Beijing 100049, China
    College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Yiming Sun

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Institute of Earth Sciences, Chinese Academy of Sciences, Beijing 100049, China
    College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Shiwei Ma

    (Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    Institute of Earth Sciences, Chinese Academy of Sciences, Beijing 100049, China
    College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China)

Abstract

In situ heat injection is a suitable technique for extracting shale oil from reservoirs with high organic matter content but insufficient thermal maturation. To optimize the stimulation process and to avoid unnecessary energy consumption, understanding the thermal process and the effects of thermal parameters is crucial. This research employs a self-developed simulator to build a 2D numerical model of the in situ conversion process of kerogen with electric heaters. A benchmark model is first established to determine the effects of heat injection on crude oil production and kerogen decomposition. Subsequently, this study analyzes the evolution of shale oil within the reservoir, identifying the role of thermal and physical properties in crude oil production and kerogen decomposition during the stimulation treatment. A sensitivity analysis of the thermal properties of the reservoir is also carried out, which allows for defining the role of the thermal conductivity of the rock during the stimulation process. Finally, it is observed that, when using the injection at a constant power, the injection time to achieve a suitable large rate of decomposition is shorter than at a constant temperature—consequently, it has a higher economic advantage.

Suggested Citation

  • Maryelin Josefina Briceño Montilla & Shouding Li & Zhaobin Zhang & Xiao Li & Yiming Sun & Shiwei Ma, 2023. "Theoretical Analysis of the Effect of Electrical Heat In Situ Injection on the Kerogen Decomposition for the Development of Shale Oil Deposits," Energies, MDPI, vol. 16(13), pages 1-23, June.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:13:p:5007-:d:1181663
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    References listed on IDEAS

    as
    1. Zhang, Zhaobin & Xu, Tao & Li, Shouding & Li, Xiao & Briceño Montilla, Maryelin Josefina & Lu, Cheng, 2023. "Comprehensive effects of heat and flow on the methane hydrate dissociation in porous media," Energy, Elsevier, vol. 265(C).
    2. Shi, Yu & Zhang, Yulong & Song, Xianzhi & Cui, Qiliang & Lei, Zhihong & Song, Guofeng, 2023. "Injection energy utilization efficiency and production performance of oil shale in-situ exploitation," Energy, Elsevier, vol. 263(PB).
    3. Juan Jin & Jiandong Liu & Weidong Jiang & Wei Cheng & Xiaowen Zhang, 2022. "Evolution of the Anisotropic Thermal Conductivity of Oil Shale with Temperature and Its Relationship with Anisotropic Pore Structure Evolution," Energies, MDPI, vol. 15(21), pages 1-16, October.
    4. Huang, HanWei & Yu, Hao & Xu, WenLong & Lyu, ChengSi & Micheal, Marembo & Xu, HengYu & Liu, He & Wu, HengAn, 2023. "A coupled thermo-hydro-mechanical-chemical model for production performance of oil shale reservoirs during in-situ conversion process," Energy, Elsevier, vol. 268(C).
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