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High-Quality Heat Flow Determination from Coastal Areas of Fujian Province, China

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  • Yaqi Wang

    (State Key Laboratory of Lithospheric and Environmental Coevolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China)

  • Yibo Wang

    (State Key Laboratory of Lithospheric and Environmental Coevolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China)

  • Guangzheng Jiang

    (College of Energy, Chengdu University of Technology, Chengdu 610059, China)

  • Jie Hu

    (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China)

  • Shengbiao Hu

    (State Key Laboratory of Lithospheric and Environmental Coevolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China)

Abstract

The coastal region of Fujian is part of the southeastern hilly and coastal geothermal anomaly zone and is a significant high-heat-flow area in mainland China. However, existing heat flow data suffer from low quality due to insufficient calculation depth and inadequate corrections; this hinders theoretical research and geothermal resource exploration in the region. This study obtained high-quality geothermal heat flow data through steady-state temperature measurements in six boreholes and thermal conductivity tests on 79 core samples collected in situ. The results indicate that the average heat flow values from four newly analyzed representative boreholes (HDR1, LJSZ, JM-1, DS) are 65.2 mW/m 2 , exceeding the mainland Chinese average of 60.5 mW/m 2 , highlighting the region’s high heat flow characteristics. This finding corroborates previous high-heat-flow measurements in the coastal area of Fujian and aligns with earlier studies. The research fills a gap in providing high-quality heat flow data for the region, enhances our understanding of its thermal state, and is significant for studying the distribution and development of geothermal resources in the area.

Suggested Citation

  • Yaqi Wang & Yibo Wang & Guangzheng Jiang & Jie Hu & Shengbiao Hu, 2025. "High-Quality Heat Flow Determination from Coastal Areas of Fujian Province, China," Energies, MDPI, vol. 18(7), pages 1-16, March.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:7:p:1735-:d:1624587
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    References listed on IDEAS

    as
    1. Yaqi Wang & Yibo Wang & Guangzheng Jiang & Jie Hu & Yizuo Shi & Shejiao Wang & Shengbiao Hu, 2024. "A Method for Determining Target Areas of Hot Dry Rock Resources: A Case Study in Continental China," Energies, MDPI, vol. 17(10), pages 1-15, May.
    2. Wu, Shaohua & Yu, Ziwang & Kang, Jianguo & Zhang, Yanjun & Gao, Ping, 2021. "Research on the anisotropy of thermal conductivity of rocks in Songliao basin, China," Renewable Energy, Elsevier, vol. 179(C), pages 593-603.
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