雄安新区地层及主要热储空间结构特征与地热水资源潜力  

Spatial distribution characteristics of strata and main thermal reservoirs and geothermal water resource potential in Xiong'an New Area

作　　者：戴明刚 孙彭光 雷海飞[4] 邢倩 鲍志东[5] Dai Minggang;Sun Pengguang;Lei Haifei;Xing Qian;Bao Zhidong(Sinopec Star Petroleum Co.Ltd.,Beijing 100083;China National Center for Geothermal Energy Development Research and Applied Technology Promotion,Beijing 100083;Sinopec Key Laboratory of Geothermal Resources Development and Utilization,Beijing 100083;Sinopec Green Energy Geothermal Development Co.,Ltd.,Xiong'an,Hebei 071800;China University of Petroleum(Beijing),Beijing 102249)

机构地区：[1]中国石化集团新星石油有限责任公司,北京100083 [2]国家地热能源开发利用研究及应用技术推广中心,北京100083 [3]中国石化地热资源开发利用重点实验室,北京100083 [4]中石化绿源地热能开发有限公司,河北雄安071800 [5]中国石油大学(北京),北京102249

出　　处：《地质科学》2023年第2期412-437,共26页Chinese Journal of Geology(Scientia Geologica Sinica)

基　　金：国家重点研发计划专项“深地资源勘查开采”(编号:2018YFC0604300)资助。

摘　　要：雄安新区中深层白云岩热储地热资源丰富,为了提高对该区主要热储白云岩热储特征及地热水资源潜力的认识程度,指导新区中深层白云岩热储地热水资源的规模化开发,基于钻井、地震、地质等资料,研究了该区白云岩热储的地层空间分布、构造特征、储集空间特征和主建设区白云岩热储地热水资源潜力。研究表明:雄安新区主要热储雾迷山组、高于庄组除在断裂面部分地区外基本全区分布;雾迷山组埋深在容城凸起、牛驼镇凸起相对较浅,在高阳低凸起相对较深;高于庄组有类似的分布特征,总体埋深更深,温度更高;其它地层除第四系、新近系明化镇组外分布都比较局限;区内发育众多以NNE向为主的正断层,与少数其它方向断裂交会,将深部地热通过流体传输到浅部,并造就断裂两侧大量的裂缝和控制岩溶发育方向及规模,形成众多溶蚀孔洞;同时构造演化中雾迷山组古地貌中高地貌部分,在喜山期大多剥蚀与新生界形成不整合面,共同构成本区重要的输导通道和储集空间,岩溶孔洞和裂缝结合型复合空间是本区雾迷山组主要热储空间,单独的裂缝、孔洞是次要热储空间,大型溶洞一旦发育往往是主力产水层;新区主建设区顶面在5000 m(底部埋深可达6000 m)及以浅的白云岩岩溶裂缝热储地热水资源,按100年采用总热水储量的50%及500 m井距“三采两灌”原则单井产量110 m^(3)/h计,最适宜生产井布井数目233口,主建设区现阶段可满足每年4787×10^(4)m^(2)的供暖面积,占实际需求的30.1%。结论认为:雾迷山组埋深较浅,在当前经济技术条件下是主力热储,高于庄组埋深较深是最重要的备用热储,今后20年内会被大规模开发利用,但即便现在同时开发它们也不能满足雄安新区主建设区的清洁能源需求,需要发展“多能互补”系统,域外的过剩地热资源能否向域内目标区集输受经济成本�It is rich that geothermal resources in mid-deep dolomite thermal reservoir in Xiong'an New Area.In order to improve the understanding of dolomite thermal reservoir characteristics and geothermal water resource potential,and guide the large-scale development of mid-deep dolomite thermal reservoir geothermal resources in Xiong'an,based on drilling,seismic,geological and other data,the strata spatial distribution characteristics,reservoir characteristics of dolomite thermal reservoir in this area and the geothermal water resource potential of dolomite thermal reservoir in the main construction area of Xiong'an are studied.The research shows that:The main thermal reservoirs in Xiong'an New Area are Wumishan Formation and Gaoyuzhuang Formation,which are distributed in the whole area except in some faults surface areas.Buried depth of Wumishan Formation is relatively shallow in Rongcheng Rise and Niutuozhen Rise,and relatively deep in Gaoyang low rise.Gaoyuzhuang Formation has similar distribution characteristics,with deeper burial depth and higher temperature.The distribution of other strata are limited except the Minghuazhen Formation of Neogene and Quaternary.Many normal faults mainly in NNE extension direction are developed in the area,which intersect with a few faults in other directions,communicating groundwater flow and heat flow,creating a large number of fractures on both sides of the faults,controlling the direction and scale of karst development,and forming a large number of dissolution holes.At the same time,the highlands of paleogeomorphology of the Wumishan Formation in the tectonic evolution,was mostly denuded in the Himalayanian,forming an unconformity with the Cenozoic,which together constitute an important transport channel and reservoir space in the area,The compound space of karst pores and fractures is the main thermal reservoir space of Wumishan Formation in this area,and the separate fractures and pores are the secondary thermal reservoir space.Once large karst caves are developed,they are often

关 键 词：白云岩热储 雾迷山组 高于庄组 地热资源 雄安新区 空间结构 

分 类 号：P314[天文地球—固体地球物理学]