桂林理工大学学报2024，Vol.44Issue(1)：51-57,7.DOI:10.3969/j.issn.1674-9057.2024.01.006
贵州卫城地热资源热储地质条件分析
Analysis on geological conditions of geothermal reservoir for geothermal resources in Weicheng,Guizhou
摘要
Abstract
The geothermal resource in Weicheng has high temperature,large water volume,and is rich in trace elements such as strontium,lithium,fluorine,iron,barium,iodine and hemisilicic acid which is beneficial to humans.Base on the investigation of regional geological background,geological characteristics of the geothermal area,well temperature data,δD-δ18O relationship and Na-K-Mg relationship,the geological conditions of geo-thermal reservoir are analyzed.The source of geothermal water supply is mainly atmospheric precipitation,and it is deep cycle heating,with a cycle depth of 2 344.40 m and the thermal storage temperature of 74.06℃.At-mospheric precipitation seeps down along the structural fissures,heated by regional earth heat flow,resulting in changes in temperature and pressure,forming a circulating migration environment of underground cold and hot water.During the circulation,the water acts as a heat conduction medium,and absorbs mineral components in the surrounding rocks to form geothermal water rich in trace elements which are beneficial to humans.The struc-ture in this area has both thermal conductivity and water storage,and the fracture is connected with carbonate rock karst storage unit to form carbonate rock karst heat storage+banded heat storage environment.Since the mi-gration environment is not closed,the waterrock interaction is weak.关键词
地热资源/热储地质条件/卫城/贵州Key words
geothermal resources/geological conditions of geothermal reservoir/Weicheng/Guizhou分类
地球科学引用本文复制引用
杨晓飞,苏翠兰,锁瑞强,张学东..贵州卫城地热资源热储地质条件分析[J].桂林理工大学学报,2024,44(1):51-57,7.基金项目
国家自然科学基金项目(U1812402 （）
41430315) （）
贵州省科技厅重大科技工程项目(ZD003) （ZD003）
