银川盆地东缘地热成藏模式探讨

doi:10.11720/wtyht.2021.1486

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Abstract

With the gradual acceleration of the construction of Yinchuan metropolitan area, especially the further expansion of Ningdong national energy and chemical base, the Yinchuan Plain urban agglomeration has been encountered with severe environmental quality problems, especially air quality problems. Therefore, intensifying the development and utilization of clean energy, optimizing the energy utilization structure in the region and reducing harmful gas emissions are one of the effective ways to improve air quality. Based on the regional geological structure and geothermal geological conditions on the eastern margin of Yinchuan Basin, the authors used regional gravity, magnetic, electrical, seismic and drilling data to focus on the analysis of three important geothermal enrichments in deep heat sources, heat conduction channels and reservoir caps. The geothermal accumulation model on the eastern margin of Yinchuan Basin was constructed, which lays a solid research foundation for the subsequent development and utilization of geothermal resources.

Key words： geothermal exploration comprehensive geophysical prospecting geothermal enrichment conditions accumulation model eastern margin of Yinchuan Basin

Received: 16 October 2020 Published: 27 July 2021

ZTFLH:

P631

Corresponding Authors: HU Xin-Jun E-mail: 825785150@qq.com;junyan_home@126.com

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	Articles by authors
	Xiao-Jing CHEN
	Xin-Jun HU
	Ning-Sheng LI
	Yang WU
	Guo-Qiang CHENG
	Ping NI
	Yuan-Yuan CAO
	Jin-Bing BO

Cite this article:

Xiao-Jing CHEN,Xin-Jun HU,Ning-Sheng LI, et al. A discussion on geothermal accumulation model on the eastern margin of Yinchuan Basin[J]. Geophysical and Geochemical Exploration, 2021, 45(3): 583-589.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1486 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I3/583

Geological structure map of Yinchuan basin
1—upper aeolian deposits;2—lacustrine deposits;3—lower aeolian deposits;4—Lingwu formation;5—Malan formation;6—the tunnel ditch formation;7—diluvium layer;8—Ganhegou formation;9—Zhangenbao formation;10—Qingshuiying formation;11—Yijun formation;12—Miaoshanhu formation;13—Zhiluo formation;14—Yan'an formation;15—Shangtian formation;16—Dafengou formation;17—Er'maying formation;18—Heshanggou formation;19—Liujiagou formation;20—Liujiagou formation;21—upper Shihezi formation;22—lower Shihezi formation;23—Shanxi formation;24—Yanghugou formation;25—Jingyuan formation;26—Zhongning formation;27—Miboshan formation;28—Tianjingshan formation;29—Hulustai formation;30—Taosigou formation;31—Wangquankou formation;32—Huangqikou formation;33—Zhaochigou group;34—Zongbieli rock group;35—Binbulite formation;36—tonalite;37—biotite granite;38—concealed fault;39—exposed fault

Location map of thermal anomaly mining area

Geothermal gradient distribution map of Yinchuan plain

Geothermal gradient change map of Tianshan sea world geothermal well

Depth map of Curie isothermal surface in Yinchuan plain

Helanshan-Taolebei magnetotelluric sounding (MT) profile

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Interpretation results of deep seismic superimposed sections in Yinchuan Basin^[29]

Formation temperature change diagram of geothermal well

Geothermal resource accumulation model map

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