Application of a comprehensive geophysical exploration methods in the exploration of geothermal resources in Yueliangwan, Binhai County
WANG Jun-Cheng1,4(), ZHAO Zhen-Guo2, GAO Shi-Yin1,4, LUO Chuan-Gen1,4, LI Lin1,4, XU Ming-Zuan1,4, LI Yong3, YUAN Guo-Jing3
1. Geological Exploration Technology Institute of Jiangsu Province, Nanjing 210049, China 2. China Communications Construction Company Highway Consultants Co., Ltd., Beijing 100088, China 3. Beijing Zhongke Diyuan Technology Co., Ltd., Beijing 100083, China 4. Jiangsu Engineering Research Center for Aeronautical Earth Exploration and Intelligent Sensing, Nanjing 210049, China
This study explored the geothermal resources in Yueliangwan, Binhai County, Jiangsu Province using the controlled source audio-frequency magnetotellurics (CSAMT) method and the wide-field electromagnetic method. Through the auxiliary correction of near-field and transition-field curves, as well as the inversion based on the CSAMT data, this study obtained the electrical structure information of underground geothermal resources in the Binhai port. Meanwhile, this study acquired the information on the underground geometric structure using the microtremor exploration method. By comprehensively analyzing the interpretation results of three kinds of geophysical data, this study obtained the geothermal model of the study area and determined the locations of the anomalies. A geothermal well with a depth of 2 919 m was drilled in the study area, obtaining water yield of 2 171 m3/d with a water temperature of 51 ℃. The high consistency between the results from the comprehensive geophysical exploration and the geological and geothermal well data indicates that the comprehensive geophysical exploration method can improve the reliability of geothermal exploration results.
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WANG Jun-Cheng, ZHAO Zhen-Guo, GAO Shi-Yin, LUO Chuan-Gen, LI Lin, XU Ming-Zuan, LI Yong, YUAN Guo-Jing. Application of a comprehensive geophysical exploration methods in the exploration of geothermal resources in Yueliangwan, Binhai County. Geophysical and Geochemical Exploration, 2023, 47(2): 321-330.
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