组合物探方法在地热资源勘查中的应用  

Application of composite geophysical methods in geothermal resource exploration

作　　者：苟万灯 刘海飞[1,2] 柳建新 李昶萱[1,2] GOU Wandeng;LIU Haifei;LIU Jianxin;LI Changxuan(School of Geosciences and Info-Physics,Central South University,Changsha 410083,China;Key Laboratory of Non-ferrous Resources and Geological Detection,Ministry of Hunan Province,Changsha 410083,China)

机构地区：[1]中南大学地球科学与信息物理学院,长沙410083 [2]有色资源与地质灾害探查湖南省重点实验室,长沙410083

出　　处：《物探化探计算技术》2021年第6期799-806,共8页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家自然科学基金项目(41774149,41174102)。

摘　　要：地热资源作为一种高效清洁的绿色可再生资源,具有重要的经济开发价值和社会意义。湖南省地热资源丰富、开发潜力大,而物探方法具有高效、成本低、适用性强的优点,在当前地热资源勘查中发挥了越来越重要的作用。这里以常德市热市镇为例,利用大地电磁测深、激电测深和联合剖面法相结合的方法,查明了勘查区内地层岩性分布和地下电性结构特征、岩溶裂隙发育带及深大控热构造的位置和产状,为后期地热资源开发提供了可靠的物探依据。通过数据采集、反演解释、异常推断解释以及钻探验证等研究过程,证明了大地电磁测深法、激电测深法和联合剖面法组合地球物理探测方法在地热资源勘查中的有效性。Geothermal resources regarding as efficient,clean,green and renewable resources,have important economic development value and social significance.Hunan Province is rich in geothermal resources and has great development potential.Geophysical methods are playing an increasingly important role in the exploration of geothermal resources due to their high efficiency,low cost,and strong applicability.In this paper,taking the Reshi town of Changde City as an example,using the combined methods of Magnetotelluric sounding,IP sounding and Combined Profile method,to find out the lithologic distribution of strata,the characteristics of the underground electrical structure,the location and occurrence of karst fissure development zone and as well as deep and large heat control structure in the exploration area.This provided a reliable geophysical basis for the later development of geothermal resources.Through the research process of data acquisition,inversion and interpretation,anomaly inference interpretation,and drilling verification,the effectiveness of combined geophysical exploration methods of magnetotelluric sounding method,induced electric sounding method and joint profile method in the exploration of geothermal resources is proved.

关 键 词：地热勘查 组合物探方法 大地电磁测深 激电测深 联合剖面法 

分 类 号：P631[天文地球—地质矿产勘探]