凉城县地热资源特征及开发利用前景分析

Geothermal Resource Features and Exploitation,Utilization Prospect Analysis in Liangcheng County

凉城县中水塘地热田位于华北地台内蒙古台隆凉城断隆构造之岱海断陷盆地的北侧,属一典型的构造型中低温地热田,虽被发现较早,但长期处于无序开采状态。20世纪70年代以后,先后进行了二次多技术手段的勘探,基本查明了地热田的地质条件、热储层与盖层岩性特征、热源性质、空间分布特征等。在此基础上,通过对中水塘地热田的地层、构造、侵入岩、热源、地热地质条件、地热水物理及化学特征等的分析研究,认为该地热田2300m以浅有热储层存在、热源充足;地下水补给来源充足,满足地下热水开采和深部热量交换;地热田热水属中低温弱碱性淡水,可用于生活洗浴、医疗治病、旅游疗养和农业养殖等多种用途,综合利用价值较高,开发前景较好。

The Zhongshuitang geothermal field in Liangcheng County is situated in the north side of Daihai fault basin,Liangcheng fault uplift,Inner Mongolia anteclise,North China platform.It belongs to typical structural typed medium-low temperature geothermal field.Although found earlier,but has under out-of-order exploitation status over a long period.After 1970s it has carried out 2 times’multi-means exploration one after another,basically identified geothermal field geological condition,geothermal reservoir and overburden lithologic features,thermal source property,spatial distributions etc.On this basis,through Zhongshuitang geothermal field stratigraphic,structural,intrusive rock,thermal source,geothermal geological condition,geothermal water physical and chemical features analysis and research have considered that above depth 2300m has thermal reservoir existed with sufficient thermal source.Groundwater recharge source sufficient can satisfy geothermal water exploitation and deep part heat exchange.Geothermal field hot water belongs to medium-low temperature alkalescent fresh water can be used in bathe,medical treatment,tourism recuperation and agricultural cultivation and breeding multiple uses with higher comprehensive utilization value and better exploitation,utilization prospect.