地质装备2025，Vol.26Issue(2)：33-39,7.
湖南凤仙境弱含水基岩地区地热水资源勘查研究
Research on geothermal water resources exploration in weakly water-bearing bedrock area in Fengxianjing of Hunan province
苏园园 1张云 2高亮 2李文圣 1杨风良 2刘现川 2张哲妮 3王德2
作者信息
- 1. 北京泰利新能源科技发展有限公司,北京 101118
- 2. 河北省煤田地质局第二地质队(河北省干热岩研究中心),河北邢台 054001||河北省干热岩型地热资源勘查开发技术创新中心,河北邢台 054001||邢台市深地资源勘探开发技术创新中心,河北邢台 054001
- 3. 中国电建集团河南省电力勘测设计院有限公司,郑州45007
- 折叠
摘要
Abstract
According to the classification of geothermal resource reservoir types,the geothermal resources in Fengxianjing area of Fenghuang county,Xiangxi Tujia and Miao autonomous prefecture,fall into strip-shaped thermal reservoir.This thermal reservoir is composed of a fault zone that is mainly convective heat transfer,extends in a strip shape on the plane,and has effective voids and permeability.It is also located in a bedrock area with extremely weak water richness,which increases the difficulty of geothermal exploration.Therefore,it is crucial to identify the thermal and water conducting channels in this area.To investigate the occurrence of geothermal resources in the work area,the regional geological structure was firstly investigated and studied with controlled source audio magnetotelluric sounding(CSAMT)conducted in the northeast of the work area for verification;Secondly,measures were taken to optimize the transmitter system and adjust the dipole position in response to the inferred hidden faults and strong electromagnetic environment background within the work area,and to carry out CSAMT measurement work within the work area;Finally,based on the comprehensive geophysical inversion data and the research results of thermal and water conducting channels,the spatial distribution pattern of hidden faults was inferred,and a geothermal well location was determined.Through the use of unbalanced drilling technology for drilling verification,a thermal conductivity and water conductivity fault was successfully encountered with a depth of 1820 meters,a water output of 463 m3/d and a temperature of 49 ℃.The research results of this study can provide valuable reference for the exploration of geothermal water resources in areas with poor water rich bedrock.关键词
弱含水基岩/地热水/资源勘查/隐伏构造/CSAMTKey words
weakly water-bearing bedrock/geothermal water/resource exploration/hidden structure/CSAMT分类
地质学引用本文复制引用
苏园园,张云,高亮,李文圣,杨风良,刘现川,张哲妮,王德..湖南凤仙境弱含水基岩地区地热水资源勘查研究[J].地质装备,2025,26(2):33-39,7.
