摘要
为了圈定辽西绥中地区地热异常范围,采用高密度电阻率法、浅层地震反射波法及音频大地电磁测深法对该区进行了综合地球物理勘查工作。研究结果表明:该区第四系覆盖层厚度25m左右,存在隐伏深大导水断裂F1,F1走向近东西向,倾向北,倾角70°~85°,后期的钻探产生的地热井发生自流现象,水头高度4.5m,自流量达700t/d,水温达到38°。钻探成果证明了综合地球物理技术现实意义较强,可应用于地热资源的勘查中。
In order to delineate the range of abnormal geothermal energy,in this paper,the high density resistivity method,shallow seismic reflection wave method and audio magnetotelluric sounding method are adopted to explore geophysical features in this area.Research results show that：the thickness of quaternary overburden layer is about 25m;there is buried deep fracture F1 which tends to north and whose inclination angle is about 70°to 85°;the geothermal well can flow automatically in the later drilling,of which the altitude of waterhead is about 4.5 m,the flow rate is about 2 500t/d and the water temperature reaches38°.Drilling results have proved that comprehensive geophysical exploration technique has practical significance and can be applied to geothermal resources exploration.
出处
《工程地球物理学报》
2017年第4期481-486,共6页
Chinese Journal of Engineering Geophysics
基金
国家自然科学基金项目(编号:40774073)
关键词
高密度电阻率法
浅层地震反射波法
音频大地电磁测深法
断层
地热
high density resistivity method
shallow seismic reflection wave method
audio magnetotelluric sounding method
fault
subterranean heat
