青海省贵德扎仓寺地热成因机理及开发利用建议

doi:10.13278/j.cnki.jjuese.201601206

吉林大学学报(地球科学版) ›› 2016, Vol. 46 ›› Issue (1): 220-229.doi: 10.13278/j.cnki.jjuese.201601206

青海省贵德扎仓寺地热成因机理及开发利用建议

李小林¹, 吴国禄¹, 雷玉德¹, 李重阳², 赵继昌³, 白银国¹, 曾昭发⁴, 赵振¹, 张珊珊⁵, 赵爱军¹

1. 青海省环境地质重点实验室/青海省环境地质勘查局, 西宁 810007;
2. 四川省地质矿产勘查开发局九一五水文地质工程地质队, 四川眉山 620000;
3. 中国地质环境监测院, 北京 100003;
4. 吉林大学地球探测科学与技术学院, 长春 130026;
5. 青海省地质调查局, 西宁 810001

收稿日期:2015-04-08 出版日期:2016-01-26 发布日期:2016-01-26
作者简介:李小林(1958),男,教授级高级工程师,主要从事水文地质、工程地质、灾害地质方面的研究,E-mail:lxl906@163.com
基金资助:
青海省科技支撑计划项目 (2014-GX-207);国家高技术研究发展计划("863"计划)项目(2012AA052803);中国地质调查局地质大调查项目 (水环[2013]第23号)

Suggestions for Geothermal Genetic Mechanism and Exploitation of Zhacang Temple Geothermal Energy in Guide County, Qinghai Province

Li Xiaolin¹, Wu Guolu¹, Lei Yude¹, Li Chongyang², Zhao Jichang³, Bai Yinguo¹, Zeng Zhaofa⁴, Zhao Zhen¹, Zhang Shanshan⁵, Zhao Aijun¹

1. Key Lab of Geo-Environment, Qinghai Province/Environmental Geological Prospecting Bureau of Qinghai Province, Xi'ning 810007, China;
2. Bureau of Geology and Mineral Exploration and Development 915 Hydrogeology and Engineering Geology Team, Meishan 620000, Sichuan, China;
3. China Institute of Geo-Environment Monitoring, Beijing 100003, China;
4. College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China;
5. Qinghai Province Geological Bureau, Xi'ning 810001, China

Received:2015-04-08 Online:2016-01-26 Published:2016-01-26
Supported by:
Supported by Science and Technology Support Program of Qinghai Province (2014-GX-207),National High-Tech R&D Program of China ("863" Program) (2012AA052803) and Geological Survey Projects of China Geological Survey(WH[2013] No.23)

摘要/Abstract

摘要：

本文通过卫星热遥感影像及航磁、重力异常的宏观性解译热异常空间分布特征,野外实地调查温泉的出露条件和水化学特征,分析研究青海省贵德扎仓寺温泉的热源通道、入渗通道,从而讨论其成因机理和开发利用前景。研究结果表明:扎仓寺温泉泉口温度为93.5℃,与当地气压有关;大气降水和热水沟上游沟谷水为补给源,近东西向张裂为入渗通道,中三叠统砂板岩与印支期花岗闪长岩(γδ₅²)接触变质带为径流通道(热储层),中三叠统砂板岩为盖层,北北西向热光断裂(F₁)为热源通道,属断裂-深循环地热类系统类型;径流通道(热储层)温度可达136.0℃,具备蒸汽发电示范背景条件,而F₁断裂带附近2000 m深度温度可达195.0℃,具备干热岩开发利用前景。

关键词: 扎仓寺温泉, 地热成因机理, 开发利用, 干热岩

Abstract:

The regional distribution of the thermal anomaly is studied by the macroscopic interpretation of satellite remote sensing, aeromagnetic heat, and gravity anomalies. At the same time, the exposed conditions and hydrochemical characteristics of hot springs are discussed through field investigation and test. On this basis, the heat channel and infiltration channel of the hot spring are analyzed, as well as the geothermal genetic mechanism and exploitation. The temperature of Zhacang hot spring is 93.5℃, which is related to the local pressure. The precipitation, hot ditch water, and upper gully water are the recharge source of the hot springs;the east-west tension cracks are the filtration channels;the metamorphic belt between the middle Triassic sandy slates and granodiorite is the runoff channel of the hot reservoir;covering by the sandy slate, Reguang fault of NNW(F₁) is the heat source channel. It belongs to a fracture-deep cycle geothermal system. The temperature of hot reservoir could be up to 136.0℃,and could be used for generating electricity. The temperature at the depth of 2000 meters near the F₁ fault could reach 195.0℃, and the hot dry rocks are valuable for future development and utilization.

Key words: hot spring of Zhacang Temple, genetic mechanism of geothermal, exploitation, hot dry rock

中图分类号:

P314

李小林, 吴国禄, 雷玉德, 李重阳, 赵继昌, 白银国, 曾昭发, 赵振, 张珊珊, 赵爱军. 青海省贵德扎仓寺地热成因机理及开发利用建议[J]. 吉林大学学报(地球科学版), 2016, 46(1): 220-229.

Li Xiaolin, Wu Guolu, Lei Yude, Li Chongyang, Zhao Jichang, Bai Yinguo, Zeng Zhaofa, Zhao Zhen, Zhang Shanshan, Zhao Aijun. Suggestions for Geothermal Genetic Mechanism and Exploitation of Zhacang Temple Geothermal Energy in Guide County, Qinghai Province[J]. Journal of Jilin University(Earth Science Edition), 2016, 46(1): 220-229.

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青海省贵德扎仓寺地热成因机理及开发利用建议

Suggestions for Geothermal Genetic Mechanism and Exploitation of Zhacang Temple Geothermal Energy in Guide County, Qinghai Province

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