梅州市地热资源分布特征分析及调查评价

Distribution characteristics of geothermal resources and evaluation of geothermal resources in Meizhou City

梅州市是广东省地热资源较丰富的地区,我国第一座地热发电站就坐落在梅州市丰顺县邓屋,历经50年后仍然正常运转。为加强梅州市地热资源的管理与保护,实现资源的可持续利用,适应社会、经济发展与环境建设的需要,进行了较为全面调查评价。通过调查研究,查明了52处地热资源分布区,构成相对独立又有一定联系的地热田(区)26个,分布在25个镇,具有分布广、储量大、水温高、水质好、流量大、药用疗效高、水位埋藏浅、自然出露点多、自流点多的特点。全市地热分布面积约9.7253 km^(2),可开采量55668.9 m^(3)/d,年可开采地热水1837万m^(3)。地下热水绝大部分位于北东向断裂与北西向断裂交汇处,地热资源主要受构造控制,多呈条带状分布,为带状地热田(区)。

Meizhou City is an area rich in geothermal resources in Guangdong Province.The first geothermal power station in our country is located in Dengwu,Fengshun County,Meizhou City.It is still operating normally after 50 years.In order to strengthen the management and protection of geothermal resources in Meizhou,realize the sustainable use of resources,and adapt to the needs of social,economic development and environmental construction,a more comprehensive survey and evaluation have been conducted.This paper discusses and evaluates the 52 geothermal resource distribution areas in Meizhou City,which constitute 26 relatively independent and connected geothermal fields(districts),distributed in 25 towns in one district,it has wide distribution,large reserves,high water temperature,good water quality,large flow,high medicinal effects,shallow water level,many natural dew points,and artesian points many features.The city's geothermal distribution area is about 9.7253 km^(2),the extractable amount is 55,668.9 m^(3)/d,and the annual extractable geothermal water is 18.37 million m^(3).Most of the geothermal water is located at the intersection of the NE trending faults and the NW trending faults.The geothermal resources are mainly controlled by the structure,and they are mostly distributed in strips,which are zonal geothermal fields(zones).