河北容城凸起区热储层新层系——高于庄组热储特征研究

A Study of the Thermal Storage Characteristics of Gaoyuzhuang Formation, A New Layer System of Thermal Reservoir in Rongcheng Uplift Area, Hebei Province

河北省平原区地热资源丰富,碳酸盐岩热储在区内沿构造单元规律沉积,其中中上元古界热储(蓟县—长城系)以容城凸起、牛驼镇凸起、献县凸起等地分布广泛,潜力巨大。容城凸起位于冀中台陷中部,北北东向分布,是雄安新区地热资源赋存条件最好的地区之一。以往的勘查和开发利用的层位主要是1 800 m以浅的蓟县系上部岩溶热储层,探测地热开发的第二空间是雄安新区清洁能源勘查的目的之一,本文以进入高于庄组热储的D16地热勘探孔为依托,通过抽水试验、岩心测试分析研究高于庄热储岩溶热储的热储特征、主要参数等。

The plain area of Hebei Province is rich in geothermal resources,and carbonate thermal storage is deposited along the structural unit in this area.The middle and upper Proterozoic thermal storage(Jixian–Changcheng System)is widely distributed in Rongcheng uplift,Niutuozhen uplift,Xianxian County uplift and other places with great potential.Rongcheng uplift is located in the central part of Jizhong platform depression and distributed in the NE direction.It is one of the areas with the best geothermal resources in Xiongan New Area.In the past,the exploration and utilization horizons were mainly karst thermal reservoirs shallower than 1 800 m in the upper Jixian System.Therefore,the exploration of the second space for geothermal development is one of the purposes of the clean energy exploration in Xiongan New Area.The first batch of geothermal geological exploration holes D16 are the first geothermal exploration wells to enter the Gaoyuzhuang Formation thermal storage.Based on the D16 holes,the experiment passed the pumping test and core test,and revealed the thermal storage characteristics and main parameters of the Gaoyuzhuang thermal storage karst thermal storage.