渤海湾盆地干热岩型地热资源有利区位研究  

Study on the Favorable Area of Geothermal Resources of Hot Dry Rock in Bohai Bay Basin

作　　者：董红伟[1] 王飞 段绪峰 关利进 赵鹏[1] 宿盛 DONG Hongwei;WANG Fei;DUAN Xufeng;GUAN Lijin;ZHAO Peng;SU Sheng(Tianjin North China Geological Exploration General Institute,Tianjin 300170)

机构地区：[1]天津华北地质勘查总院

出　　处：《城市地质》2019年第2期97-110,共14页Urban Geology

摘　　要：基于沉积盆地型干热岩的基本特征,系统总结了渤海湾盆地干热岩型地热资源选区的地热地质学、地球物理学、地表地热显示、干热岩资源潜力和地质安全性等指标,对渤海湾盆地内主要构造单元干热岩赋存背景进行了分析,建立了适宜于沉积盆地型干热岩勘查选区的评价指标体系。通过层次分析和打分法进行综合评价,结果表明,渤海湾盆地内干热岩勘查的最有利区位为沧县隆起区,次有利区位为济阳坳陷和冀中坳陷,显示厚覆盖盆地内隆起区较坳陷区更为有利,而坳陷区内的次级凸起构造较凹陷构造更为有利。基于上述认识,在有利区位中进一步圈定了沧县隆起、牛驼镇-容城凸起、陈庄凸起和乐亭-昌黎凹陷4个靶区,为渤海湾盆地开展干热岩勘查选址指明了方向。Based on the basic characteristics of sedimentary basin-type HDR(Hot Dry Rock),the authors have browsed a large of number of geological,geothermal and geophysical data,and systematically summarized the location of geothermal geology,geophysics,surface geothermal,HDR resource potential and geological safety indicators of sedimentary basin-type HDR in the Bohai Bay Basin.The authors study the background of HDR in the main tectonic units,and estimate a suitable evaluation index system of HDR exploration regional selection for the sedimentary basin.The comprehensive evaluation of analytic hierarchy process and expert scoring method show that the most favorable location for HDR exploration should be focused on the Cangxian uplift in the Bohai Bay,with a comprehensive score of 52 points.The subfavorable areas are Jiyang and Jizhong depressions scored 47 and 39 points.The results also indicate that the uplifted area is more favorable than the depression area in thick-covered basin,and the convex and concave structures also have such characteristics.After comparing the geological background of HDR in the main tectonic units of Bohai Bay Basin,Cangxian uplift,Niutuo-Rongcheng convex,Chenzhuang convex,Leting-Changli concave are selected as four targets for HDR exploration in the Bohai Bay Basin.

关 键 词：干热岩 渤海湾盆地 评价指标 有利区位 靶区 

分 类 号：P314[天文地球—固体地球物理学]