摘要
以杭州市西北余杭区鸬鸟镇DR3地热井为例,通过对DR3地热井周边的区域构造、断裂构造、地层岩性、水文地质特征等进行综合分析,将DR3地热井位置选于多期次的花岗岩侵入岩体周边,以富水性好的F;断裂作为耙区断裂。经过CSAMT物探测线及后期钻孔工作验证,成功勘探出水温为37.5℃,水量366 t/d的含偏硅酸氟氡温热水。满足了构造裂隙型带状热储地热找水需要查明储水空间及富水性这2个最基本的问题,对浙江地区花岗岩构造裂隙型带状热储地热找水具有一定的指示意义。
This paper takes DR3 geothermal well in Luniao Town,Yuhang District,northwest Hangzhou as an example,through the comprehensive analysis of regional structure,fault structure,formation lithology and hydrogeological characteristics around DR3 geothermal well,the location of DR3 geothermal well is selected around multi-stage granite intrusive rock mass,and F1 fault with good water rich property is taken as rake area fault.Through the verification of CSAMT geophysical survey line and later drilling work,geothermal water with water temperature of 37.5℃and water volume of 366 t/d has been successfully explored.The two basic problems of water storage space and water abundance have been found out,which has a certain significance for geothermal water exploration of granite structural fracture belt thermal reservoir in Zhejiang Province.
作者
金博
钱俊锋
毛昌伟
王海宝
Jin Bo;Qian Junfeng;Mao Changwei;Wang Haihao(China National Administration of Coal Geology Zhejiang Bureau,Hangzhou 310000,China;Zhejiang Coal Geology Bureau,China National Administration of Coal Geology,Hangzhou 310017,China)
出处
《科技通报》
2021年第12期5-9,共5页
Bulletin of Science and Technology
基金
浙江省基础公益研究计划(项目编号:GF19D020002)
中国煤炭地质总局科技创新项目(项目编号:ZMKJ-2020-J1)
[浙地勘]2020-4
关键词
地热
地质条件
带状热储
杭州西北
geothermal
geological conditions
ribbon heat storage
Zhejiang area
