Application of comprehensive geophysical prospecting in the exploration of geothermal resources in the Linjiadi area, Aohan Banner, Inner Mongolia
HAN Shu-He1(), PEI Qiu-Ming2(), XU Jian3, SONG Zhi-Yong3, MO Hai-Bin3
1. Chifeng Natural Resources Reserve Collation Center, Chifeng 024000, China 2. Faculty of Geosciences and Engineering, Southwest Jiaotong University, Chengdu 611756, China 3. Inner Mongolia Chifeng Geological Mineral Exploration and Development Co., Ltd., Chifeng 024000, China
In the context of the goals of both peak carbon dioxide emissions and carbon neutrality, scientific and efficient exploration and exploitation of geothermal resources are criticalfor the geothermal industry. To address the commonly concernedtechnical challenges in the exploration of moderately deep geothermal resources, this study investigated the effectiveness of comprehensive geophysical prospecting in the exploration of geothermal resources inthe Linjiadi area, Aohan Banner, Inner Mongolia. Based on the analysis ofthe geological and hydrogeological conditions, this studypreliminarilyascertainedthe geothermal field characteristicsand the hydrochemicalcharacteristics of groundwater in the Linjiadi area. By comprehensively employingcontrolled source audio-frequency magnetotellurics (CSAMT), CSAMT; microtremor survey; radioactive radon survey; this study roughly determined the distribution of strata, magmatic rocks, and fault structures in the study area, inferring the factors controllinggeothermal anomaly areas and hot-water migration.Accordingly, exploration boreholes were arranged, allowing for drilling verificationwith a total length of 960 m. The results show that the comprehensiveapplication of CSAMT and microtremor survey, combined with radioactive radon survey for auxiliary verification, is effective in exploringmoderately deep geothermal resources. This study will provide a methodological reference for geothermal resource exploration in other areas.
韩术合, 裴秋明, 许健, 宋志勇, 莫海斌. 综合物探方法在内蒙古敖汉旗林家地地热资源勘查中的应用试验[J]. 物探与化探, 2024, 48(4): 962-970.
HAN Shu-He, PEI Qiu-Ming, XU Jian, SONG Zhi-Yong, MO Hai-Bin. Application of comprehensive geophysical prospecting in the exploration of geothermal resources in the Linjiadi area, Aohan Banner, Inner Mongolia. Geophysical and Geochemical Exploration, 2024, 48(4): 962-970.
Wang G L, Lu C. Stimulation technology development of hot dry rock and enhanced geothermal system driven by carbon neutrality target[J]. Geology and Resources, 2023, 32(1):85-95,126.
[3]
Baba A, Chandrasekharam D. Geothermal resources for sustainable development:A case study[J]. International Journal of Energy Research, 2022, 46(14):20501-20518.
[4]
Yu Z T, Su R Z, Feng C Y. Thermodynamic analysis and multi-objective optimization of a novel power generation system driven by geothermal energy[J]. Energy, 2020, 199:117381.
Pang Z H, Pang J M, Kong Y L, et al. Identification method of large-scale Karst thermal storage and large-scale sustainable mining technology[J]. Science & Technology for Development, 2020, 16(S1):299-306.
Huang J J, Zhou Y, Teng H Q, et al. On the occurrence characteristics and the estimation of geothermal water in Xi'an Sag,Guanzhong Basin[J]. Northwestern Geology, 2021, 54(1):196-203.
Zhang Y H. Research on genesis and development of the geothermal system in the Kangding-Moxi segment of the Xianshuihe fault[D]. Chengdu: Chengdu University of Technology, 2018.
Cao R, Duo J, Li Y B, et al. Occurrence characteristics,development status,and prospect of deep high-temperature geothermal resources in China[J]. Chinese Journal of Engineering, 2022, 44(10):1623-1631.
[9]
谭卓英. 岩土工程勘测技术[M]. 北京: 清华大学出版社, 2022.
[9]
Tan Z Y. Geotechnical engineering surveytechnology[M]. Beijing: Tsinghua University Press, 2022.
Wang J C, Huang S M, Xu Y Y. The application of controlled source audio-frequency magnetotelluric method in geothermal resource exploration in Mount Maoshan,Jiangsu Province[J]. Journal of Geology, 2018, 42(1):161-166.
Zhang W K, Xu X P, Li C. The application of CSAMT and MT in searching for urban geothermal resources[J]. Journal of Qinghai University, 2019, 37(4):77-82.
Huang L J. Application effect of controlled source audio-frequency magnetotelluric sounding method in geothermal field of yambajanin Tibet[J]. Chinese Journal of Engineering Geophysics, 2020, 17(6):775-779.
Zhu H L, Xu B W, Liu Z L, et al. The application of magnetotelluric sounding to geothermal resources assessment in Yinchuan Basin[J]. Geophysical and Geochemical Exploration, 2019, 43(4):718-725.
Wang J L, Di B Y, Zhang B S, et al. The application of audio frequency magnetotelluric method to the geothermal exploration:A case study of Huangniqiao Area,Ninghua County,Fujian Province[J]. Geophysical and Geochemical Exploration, 2021, 45(3):576-582.
Cui Y G, Jiang Y H, Liu L, et al. Application of high-density resistivity method in geothermal exploration in Huanglin Area of Yudu County,Jiangxi Province[J]. East China Geology, 2020, 41(4):368-374.
Gao B H, Jing R Z, Zhao Y, et al. Discussion on comprehensive geophysical method in searching for geothermal resources in igneous rock area:An example of geothermal exploration in a certain area of Shanxi[J]. Mineral Resources and Geology, 2021, 35(5):947-952.
Zhao B F, Wang Q N, Chen T G. The application of geophysical methods in the investigation of geothermal resources with banded reservoir—Taking an example of Zhuwu favorable area,in Hot Water town,Rucheng County,Hunan Province[J]. Computing Techniques for Geophysical and Geochemical Exploration, 2019, 41(6):806-812.
Dong Y, Li G H, Gao P J, et al. The application of fretting exploration technology in the exploration of middle and deep clean energy[J]. Geophysical and Geochemical Exploration, 2020, 44(6):1345-1351.
Liu Y, Sheng Y, Jia H T. Prospecting geothermal resource based on microtremor high-resolution frequency-wavenumber spectrum detection technique[J]. Chinese Journal of Engineering Geophysics, 2021, 18(1):35-43.
Liang Y D, Ren K H, Jiang X, et al. Application of the activated charcoal radon measurement in the geothermal exploration:A study of the Zhangye-Minle Basin[J]. Geophysical and Geochemical Exploration, 2022, 46(6):1419-1424.
Ge Z G, Chen Y S, Yu Q S, et al. The application of comprehensive geophysical exploration technique to exploration of geothermal resources in Suizhong district of western Liaoning Province[J]. Chinese Journal of Engineering Geophysics, 2017, 14(4):481-486.
Liu H Y, Xu K, Guo J A, et al. Application of integrated geophysical method to geothermal exploration in tuohu area of Anhui Province[J]. Chinese Journal of Engineering Geophysics, 2018, 15(5):648-654.
Pei F G, Zhang X B, Wang X B, et al. Application in geothermal survey of low temperature system by integrated geophysical exploration in the Qiqihar Area:Take the well HLD1 as an example[J]. Progress in Geophysics, 2021, 36(4):1432-1442.
Wang J C, Zhao Z G, Gao S Y, et al. Application of a comprehensive geophysical exploration methods in the exploration of geothermal resources in Yueliangwan,Binhai County[J]. Geophysical and Geochemical Exploration, 2023, 47(2):321-330.
Zhang Y, Liu P L, Wang Y M, et al. Application of integrated geophysical exploration technology in the geothermal exploration of northern Jinan[J]. Geophysical and Geochemical Exploration, 2024, 48(1):58-66.
Zhao Z W, Liu R, Lin P F, et al. The prediction of gold and other polymetallic metallogenic prospective area in the Linjiadi Area of Aohanqi based on MORPAS[J]. Mineral Exploration, 2022, 13(6):785-796.
Liu Y.A study on formation、 evaluation、exploitation and utilization of geothermal resources in the aohanqireshuitang geothermal field,Inner Mongolia[D]. Beijing: China University of Geosciences(Beijing), 2009.