山东省阳信县东部地区地热地质特征及资源量评价

Geothermal geological characteristics and resource evaluationin eastern Yangxin County,Shandong Province

为了解阳信县东部地区地热资源状况,以新近系馆陶组热储层为研究对象,通过资料收集、地热地质调查、地热钻探、产能测试、水质检测分析等手段,查明该区地热地质条件和热储特征,建立热储概念模型并计算馆陶组热储层的地热资源量。结果表明,该区馆陶组热储层顶面埋深940~1100 m,厚200~345 m,属层状孔隙—裂隙型热储;热储层中储存的地热资源量为9.6773×10^(18) J,地热水可采资源量为2171.3万m^(3)/a;全区可布地热井33眼,合理井距为3950 m。研究成果可为阳信县地热资源开发利用、当地地热资源规划管理等提供重要依据。

In order to understand the status of geothermal resources in eastern Yangxin County,the geothermal reservoir of Neogene Guantao Formation is taken as the research object.Through data collection,geothermal geological survey,geothermal drilling,productivity test,water quality detection and analysis,the geothermal geological conditions and thermal reservoir characteristics in this area are identified,the conceptual model of thermal reservoir is established,and the geothermal resources of Guantao Formation thermal reservoir are calculated.The results show that the top surface of the thermal reservoir of Guantao Formation in this area is 940 to 1100 m deep and the thickness of the thermal reservoir is 200 to 345 m,which belongs to the layered pore-fracture type thermal reservoir.The amount of geothermal resources stored in the geothermal reservoir is 9.6773×10^(18) J,and the amount of geothermal water recoverable resources is 2.1713×10^(7) m^(3)/a.33 geothermal wells can be arranged in this area,and the reasonable well spacing is 3950 m.The research results can provide an important basis for the development and utilization of geothermal resources in Yangxin County and the planning and management of local geothermal resources.