许昌市地热地质特征研究  

Study on geothermal geological characteristics in Xuchang city

作　　者：蒋朝军[1] 涂良权[1] 曹渊[1] JIANG Chao-jun;TU Liang-quan;CAO Yuan(The Second Geo-exploration Institute of Henan Provincial Bureau of Geo-exploration&Mineral Development,Zhengzhou Henan 450018)

机构地区：[1]河南省地质矿产勘查开发局第二地质勘查院,河南郑州450018

出　　处：《地下水》2023年第5期39-42,70,共5页Ground water

基　　金：河南省自然资源厅2019年度地质勘查项目(豫自然资发[2019]22号)。

摘　　要：地热资源作为一种可再生清洁能源,对可持续发展和产业升级有着重要的意义。许昌市地热资源丰富,但研究程度非常低,严重影响许昌市地热资源开发利用。本文依托河南省自然资源厅地质勘查项目,通过收集在利用的地热井资料和系统的地热地质勘查,全面分析评价许昌市地热地质条件,以期为许昌市乃至华北平原地区地热开发提供地质依据。研究表明,研究区地温异常展布特征与基底埋深、基底岩性、断层密切相关,鄢陵凸起和断层附近是寻找地热资源的经济合理地段;馆陶组热储层是研究区重点热储层,全区广泛分布;古生界岩溶裂隙热储层具备一定的开发价值,且西部比东部更具开发价值;地热水是由降水入渗补给形成,补给、径流方向由西北向东南,补给来源较远,补给量不太充分,更新周期较长,以静储量为主。As a kind of renewable and clean energy,geothermal resource is of great significance to sustainable development and industrial upgrading.Xuchang city is rich in geothermal resources,but the degree of research is very low,which seriously affects the development and utilization of geothermal resources in Xuchang city.Based on the geological exploration project of natural resources department of Henan province,this paper comprehensively analyzes and evaluates the geothermal geological conditions in Xuchang city by collecting the geothermal well data and systematic geothermal geological exploration It is expected to provide geological basis for geothermal development in Xuchang city and even north china plain.The study shows that:The distribution characteristics of geothermal anomalies in the study area are closely related to the buried depth of basement,basement lithology and faults,the Yanling county uplift and the vicinity of the faults are the economic and reasonable areas to search for geothermal resources;the thermal reservoir of Guantao formation is the key thermal reservoir in the study area,which is widely distributed in the whole area;Paleozoic karst fracture thermal reservoir has certain development value,and the west has more development value than the east;the geothermal water is formed by precipitation infiltration,the direction of recharge and runoffis from northwest to southeast,the supply source is far away,the supply quantity is not enough,the renewal period is long,and the static reserve is the main.

关 键 词：许昌市 地热 地质特征 分析研究 

分 类 号：P314.1[天文地球—固体地球物理学]