雄安新区热储物性非均质条件下地热资源潜力评价  

Geothermal Resource Evaluation under Non-Homogeneous Thermal Reservoir Properties in Xiong'an New Area

作　　者：黄国疏 胡祥云[2,3] 刘亮 刘双 彭荣华[2] 杨健[2] Huang Guoshu;Hu Xiangyun;Liu Liang;Liu Shuang;Peng Ronghua;Yang Jian(The Cultivation Base of Shanxi Key Laboratory of Mining Area Ecological Restoration and Solid Wastes Utilization,Shanxi Institute of Technology,Yangquan 045000,China;School of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China;Hubei Subsurface Multi-scale Imaging Key Laboratory,China University of Geosciences,Wuhan 430074,China)

机构地区：[1]山西工程技术学院,矿区生态修复与固废资源化厅市共建山西省重点实验室培育基地,山西阳泉045000 [2]中国地质大学地球物理与空间信息学院,湖北武汉430074 [3]中国地质大学地球内部多尺度成像湖北省重点实验室,湖北武汉430074

出　　处：《地球科学》2024年第12期4576-4593,共18页Earth Science

基　　金：国家自然科学基金国际(地区)合作与交流项目(No.42220104002);山西省自然科学基金面上项目(No.202203021211288);山西省高等学校科技创新项目(No.2021L585)。

摘　　要：识别地热属性特征、准确评估地热资源潜力是实现地热能精细区划及规模化效益化开发利用的重要依据.以我国华北平原典型的中低温地热系统-河北雄安新区为研究对象,获取雾迷山组热储物性特征,预测三维温度场展布,改进资源量评价算法,评估各热属性及地层参数在非均质条件下的地热资源潜力.全区5 000 m以浅雾迷山组热储地热资源量折合标准煤为3.219 5×10^(5)万t;采灌均衡法计算地热流体可开采资源量为436.64×10^(6) m^(3)/a、地热流体可开采热量折合标准煤508.217 4万t/a,分别为开采系数法评估结果的48.7倍和50.3倍.地热资源丰、单位面积地热流体资源量均为容城最大;非均质条件下各资源量指标为均质条件下的2.29~2.95倍.Identifying geothermal property characteristics and accurately assessing geothermal resource potential are crucial foundations for achieving precise zoning and large-scale,efficient development and utilization of geothermal energy.Xiong'an New Area,one of the typical low-temperature geothermal systems in the North China plain,is selected as the study area.The study aims to obtain the thermal reservoir properties of the Wumishan Formation,predict the three-dimensional temperature distribution,improve the resource assessment algorithm,and evaluate the geothermal resource potential under heterogeneous conditions for various thermal properties and stratigraphic parameters.The research results indicate that the geothermal resource quantity of the Wumishan Formation above 5000 m is equivalent to 3.2195×10^(5) million tons of standard coal.Using the balanced injection and production method,the calculated extractable geothermal fluid resource quantity is 436.64×10^(6) m^(3) per year,equivalent to 508.2174 thousand tons of standard coal in extractable heat.The extractable resource quantity and heat calculated by the balanced injection and production method are 48.7 times and 50.3 times greater,respectively,than those calculated using the extraction coefficient method.The geothermal resource per unit area and the geothermal fluid resource per unit area are the largest in the Rongcheng area.The calculated resource indicators under heterogeneous conditions are 2.29 to 2.95 times higher than those under homogeneous conditions.

关 键 词：地热资源评价 非均质条件 地温场预测 地热属性识别 雄安新区 地球物理 环境地质 

分 类 号：P641.3[天文地球—地质矿产勘探]