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The Applications of WFEM in the Exploration of Medium-Depth Geothermal Resources

Author

Listed:
  • Guoqiang Fu

    (School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China)

  • Zhuqiang Li

    (School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
    Exploration and Development Research Institute, Shengli Oilfield Company, SINOPEC, Dongying 257000, China)

  • Qiangjiang Zhang

    (Institute of Urban Underground Space and Energy Studies, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
    College of Earth Sciences, Guilin University of Technology, Guilin 541006, China
    Institute of Green and Low-Carbon Energy Science and Technology in Chongqing, Chongqing 402160, China)

  • Tao Guo

    (Exploration and Development Research Institute, Shengli Oilfield Company, SINOPEC, Dongying 257000, China)

  • Qiyun Jiang

    (Institute of Urban Underground Space and Energy Studies, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
    Institute of Green and Low-Carbon Energy Science and Technology in Chongqing, Chongqing 402160, China)

  • Yonghong Yang

    (Exploration and Development Research Institute, Shengli Oilfield Company, SINOPEC, Dongying 257000, China)

  • Xueguo Chen

    (Exploration and Development Research Institute, Shengli Oilfield Company, SINOPEC, Dongying 257000, China)

  • Chuang Lei

    (Sinopec Geophysical Corporation Geographical & Geological Exploration Branch, Wuhan 430073, China)

  • Jie Li

    (College of Earth Sciences, Guilin University of Technology, Guilin 541006, China
    The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin 541006, China)

Abstract

Medium-depth geothermal energy mainly consists of two types, hydrothermal and dry-heat rock. With huge resource reserves, its exploration and development are of great significance to the transformation of China’s energy structure and the realization of the goal of “Double-Carbon”. From the differences in the electrical characteristics between hydrothermal and hot dry rock geothermal resources, this project uses the numerical modeling of the wide field electromagnetic (WFEM) method as a tool to design a model of typical geothermal resources. Then, we summarize and analyze the detection capability of the WFEM by calculating the WFEM response under the conditions of different depths, resistivity values, thickness-to-depth ratios and other parameters. Moreover, aiming at the key problems faced by the WFEM in real applications, we discuss the factors affecting the detection accuracy and give solutions to improve the reliability of the detection results. Finally, the medium-depth geothermal energy detection in the Jiyang Depression of Shandong is presented as an example, showing how the WFEM detection technique was used with the inversion result profile obtained. By comparing the results of geomagnetic and seismic detection on the same survey line, it is demonstrated that the WFEM method has great potential in the exploration of medium-depth geothermal energy and can be the preferred method.

Suggested Citation

  • Guoqiang Fu & Zhuqiang Li & Qiangjiang Zhang & Tao Guo & Qiyun Jiang & Yonghong Yang & Xueguo Chen & Chuang Lei & Jie Li, 2024. "The Applications of WFEM in the Exploration of Medium-Depth Geothermal Resources," Energies, MDPI, vol. 17(8), pages 1-22, April.
  • Handle: RePEc:gam:jeners:v:17:y:2024:i:8:p:1904-:d:1377043
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