Discussion on Deep Geothermal Characteristics and Exploration Prospects in the Northern Jiangsu Basin

Linyou Zhang, Shengtao Li, Wenhao Xu (), Junpeng Guan, Jian Song, Yahui Yao, Zhaoxuan Niu and Li Yang
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Linyou Zhang: Center for Hydrogeology and Environmental Geology Survey, Tianjin 300309, China
Shengtao Li: Center for Hydrogeology and Environmental Geology Survey, Tianjin 300309, China
Wenhao Xu: Center for Hydrogeology and Environmental Geology Survey, Tianjin 300309, China
Junpeng Guan: Geological Survey of Jiangsu Province, Nanjing 210018, China
Jian Song: Center for Hydrogeology and Environmental Geology Survey, Tianjin 300309, China
Yahui Yao: Center for Hydrogeology and Environmental Geology Survey, Tianjin 300309, China
Zhaoxuan Niu: Center for Hydrogeology and Environmental Geology Survey, Tianjin 300309, China
Li Yang: Center for Hydrogeology and Environmental Geology Survey, Tianjin 300309, China

Energies, 2024, vol. 17, issue 13, 1-13

Abstract: The Northern Jiangsu Basin (NJB), located at the northeast edge of the Yangtze block, is not only rich in oil and gas resources but also contains abundant geothermal resources. Nevertheless, the distribution of geothermal resources at medium depth in the NJB is still unclear due to its complex geological structure and tectonic–thermal evolution process, which restricts its exploitation and utilization. The characteristics of the geothermal field and distribution of geothermal reservoirs within the NJB are preliminarily analyzed based on available temperature measurements and geothermal exploration data. The prospective areas for the exploration of deep geothermal resources are discussed. The analysis results show that (1) Mesozoic–Paleozoic marine carbonate rocks are appropriate for use as principal geothermal reservoirs for the deep geothermal exploration and development within the NJB; (2) the geothermal field is evidently affected by the base fluctuation, and the high-temperature area is mainly concentrated at the junction of the Jianhu uplift and Dongtai depression; (3) the southeast margin of Jinhu sag, Lianbei sag, the east and west slope zone of Gaoyou sag, the low subuplifts within the depression such as Lingtangqiao–Liubao–Zheduo subuplifts, Xiaohai–Yuhua subuplifts and the west of Wubao low subuplift, have good prospects for deep geothermal exploration.

Keywords: geothermal characteristics; exploration prospects; geothermal reservoirs; Northern Jiangsu Basin (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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