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    李济琛, 陈明珠, 汤强, 刘春, 梁立唯, PeterBayer. 南京市浅层地温场研究——基于分布式光纤测温技术[J]. 中国地质, 2021, 48(3): 939-947. DOI: 10.12029/gc20210320
    引用本文: 李济琛, 陈明珠, 汤强, 刘春, 梁立唯, PeterBayer. 南京市浅层地温场研究——基于分布式光纤测温技术[J]. 中国地质, 2021, 48(3): 939-947. DOI: 10.12029/gc20210320
    LI Jichen, CHEN Mingzhu, TANG Qiang, LIU Chun, LIANG Liwei, Peter Bayer. Study on shallow geothermal field in Nanjing: Based on distributed optical fiber temperature measurement system[J]. GEOLOGY IN CHINA, 2021, 48(3): 939-947. DOI: 10.12029/gc20210320
    Citation: LI Jichen, CHEN Mingzhu, TANG Qiang, LIU Chun, LIANG Liwei, Peter Bayer. Study on shallow geothermal field in Nanjing: Based on distributed optical fiber temperature measurement system[J]. GEOLOGY IN CHINA, 2021, 48(3): 939-947. DOI: 10.12029/gc20210320

    南京市浅层地温场研究——基于分布式光纤测温技术

    Study on shallow geothermal field in Nanjing: Based on distributed optical fiber temperature measurement system

    • 摘要: 浅层地热能作为新型能源受到了国际国内的广泛关注,常规的电阻式温度传感器受电磁干扰,不适合长期在野外复杂环境中使用。本文应用抗干扰能力强的分布式光纤测温技术,对南京市19个百米深钻孔进行地温测量,获得了2018年冬季与2019年春季南京市浅层地下温度分布。综合南京市水文和地质条件,得出结论:浅层地温的变化相对于气温的变化存在着滞后现象;对于同一地点的浅层地温,地下水的流动会使得地温在不同季节出现差异;构造条件显著影响着南京市浅层地温分布。本项研究结果为南京市浅层地热能的利用分区与进一步开发提供参考。

       

      Abstract: Shallow geothermal energy has attracted extensive attention at home and abroad as a new type renewable energy. Resistance temperature sensors, as susceptible to electromagnetic interference, are not suitable for long-term use. The distribution-based fiber optic temperature measurement technology with strong anti-interference ability was used in 19 boreholes to a depth of 100 meters in Nanjing City. In the winter of 2018 and spring of 2019, the distribution of shallow uground temperature in Nanjing was obtained from the 19 boreholes. Based on the hydrological and geological conditions in Nanjing, it is concluded that the change of shallow ground temperature is lagged relative to the change of air temperature. For the shallow ground temperature in the same location, the flow of groundwater will lead to different ground temperature in different seasons. Structural conditions significantly affect the distribution of shallow ground temperature. The results can provide a reference for the utilization and further development of shallow geothermal energy in Nanjing.

       

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