埕宁隆起区寒武系—奥陶系岩溶热储资源评价

Development Prospect Analysis of Cambrian-Ordovician Karst Geothermal Reservoir in Chengning Uplift Area,Shandong Province

为进一步探究山东埕宁隆起区域内热储资源量,制定合理可持续的开发方案,为地热资源的进一步勘探和综合开发提供科学依据,本次研究结合野外地质调查测试结果及以往成果资料,分析了区内地热流体成因,并采用热储法与综合指数法,对寒武系—奥陶系岩溶热储进行资源量估算及开发前景分析。结果表明:区内寒武系—奥陶系岩溶热储可利用地热资源量为1.97×10^(19)J,折合标准煤6.72×10^(8)t;地热流体年均可采量为29777.40万m^(3)/a;具备未来开采条件的区域面积为1538.29 km^(2),占岩溶热储总面积的86.18%。区内寒武系—奥陶系岩溶热储具有较高的开发利用潜力,应加大勘查力度,推进开发利用进程。

To further explore the geothermal storage resources in the Chengning uplift region of Shandong,it is necessary to make reasonable and sustainable development plans to provide scientific basis for further exploration and comprehensive development of geothermal resources.In this paper,the geological survey data and field test results are used to analyze the genesis of geothermal fluids.Using the thermal storage method and comprehensive index method to estimate the resource quantity and analyze the development prospects of the Cambrian-Ordovician karst geothermal resources and provide scientific basis for further exploration.The result shows that the available geothermal resources of Cambrian-Ordovician karst heat reservoir are 1.97×10^(19)J,equivalent to 6.72×10^(8) t of standard coal;The annual recoverable amount of geothermal fluid is 29777.40×10^(4) m^(3)/a.The area available for development is 1538.29 km^(2),accounting for 86.18% of the total karst geothermal area.The Cambrian-Ordovician karst geothermal reservoirs in the area have great potential for development and utilization,so that exploration efforts should be increased to promote the development and utilization process.