山东曹县城区地热资源研究

Study on geothermal resource in Caoxian area of Shandong

地热能是一种新的洁净能源,地热资源的有效利用是解决当今能源耗竭的重要途径和手段。文章通过对曹县城区孔隙、岩溶裂隙型含水热储层及复合热储层赋存的分析,估算了研究区内各热储温度、地热资源总量、可利用地热资源量和地下热水的热流量,评价分析了总能量热物理性参数及地热流体的质量。结果表明:新近纪明化镇地下热水可开采量为303.53万m3/a;奥陶纪热储层地下热水可开采量为176.95万m3/a,开采年限为100 a。最有利用价值的是复合性热储层,热储类型均为层状承压型。其地热资源条件良好,开采潜力较大,地热资源利用价值高,可做进一步的开发和利用。

Geothermal energy is just a kind of new clean energy and its efficient utilization is one of the most effective way to solve today＇s energy depletion. Through the analysis of the occurance characteristics of aquifier reservoir and compound reservoir with the type of porosity and karst fractured,the paper estimated the temperature of geothermal reservoirs, geothermal resource, available geothermal resource and heat flux of geothermal water,made an evaluation analysis of the total energy and quality of geothermal fluid. The results show that the exploitable geothermal water in Minghuazhen of Neogene is 3035300 m3/a,and in Cambrian-Ordovician the exploitable geothermal water is 1769500 m3/a. Exploitation of period is 100 years. Compound thermal reservoir is the most valuable reservoir,which is layered bearing type. The geothermal resource has larger mining potential and high geothermal resource utilization value,suitable to do further development and utilization.