重力与大地电磁测深在博野潜山深部地热探测中的应用  

Application of Gravity and Magnetotelluric Sounding in Deep Geothermal Exploration of Boye Buried Hill

作　　者：张大明 张龙飞 殷全增 赵石峰 张昭 台立勋 杨彪 Zhang Daming;Zhang Longfei;Yin Quanzeng;Zhao Shifeng;Zhang Zhao;Tai Lixun;Yang Biao(Hebei Province Bureau of Coal Geology Geological Team,Xingtai Hebei 054000,China;Geology and Technology Division,Hebei Province Bureau of Coal Geology,Shijiazhuang Hebei 050085,China)

机构地区：[1]河北省煤田地质局物测地质队,河北邢台054000 [2]河北省煤田地质局地质与科技处,河北石家庄050085

出　　处：《工程地球物理学报》2022年第5期664-672,共9页Chinese Journal of Engineering Geophysics

基　　金：国家重点研发计划项目基金(编号:2018YFC0604303)

摘　　要：地热是蕴藏在地球内部的一种巨大的能源宝库,作为清洁能源,开发利用好地热能具有良好的社会、经济效益,发展前景广阔。目前浅层地热资源已经开发殆尽,地热资源向深部求取成为当下急需解决的问题。本文以河北保定博野地区碳酸盐岩热储构造为研究对象,在综合研究该区地质情况的基础上,通过分析该地区剩余重力异常数据,并在博野县城开展了大地电磁测深工作,对该区可能蕴涵地热资源的深部构造和储存形态进行了评价,推断了蓟县系雾迷山组的顶界面深度为2800~3600 m,确定了高阳博野断层F位置,指导了地热井JZ04孔位的确定,并对钻探地层进行了预测。经钻探验证,JZ04井钻遇地层及构造情况与物探推断结果平均吻合度达86.46%。研究结果表明,重力与大地电磁测深方法在博野潜山深部地热资源探测中具有有效性,可为探测地热储层和查明热储结构提供方法依据。Geothermal energy is a huge treasure house for clean energy stored in the earth’s interior.With proper development and utilization,it has good social and economic benefits and broad development prospects.At present,the shallow geothermal resources have been much developed,tapping deep geothermal resources has become pressing to the world.This paper takes the carbonate thermal reservoir structure in Boye area,Baoding,Hebei province as the research object.Based on the comprehensive study of the geological situation of this area,through the analysis of the gravity residual anomaly data in this area,and the magnetotelluric sounding work in Boye county,the deep structure and overburden morphology that may contain geothermal resources in this area are evaluated.It is inferred that the depth of the top interface of Wumishan formation of Jixian system is 2800~3600 m.The location of Gaoyang Boye fault F is determined,which guides the location of geothermal well JZ04,and the prediction of drilling strata.The drilling verification shows that the average coincidence between the formation and structure conditions encountered in JZ04 well drilling and the geophysical exploration inference results is 86.46%.The research results show that the gravity and magnetotelluric sounding methods are effective in the detection of deep geothermal resources in Boye buried hill,which can provide a method basis for the detection of geothermal reservoirs and the identification of thermal reservoir structures.

关 键 词：博野 深部热储构造 剩余重力异常 大地电磁测深法 

分 类 号：P631[天文地球—地质矿产勘探]