Geothermal geological characteristics and resource evaluation in eastern Yangxin County,Shandong Province
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,geo-thermal 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 geo-thermal resources of Guantao Formation thermal reservoir are calculated.The results show that the top surface of the ther-mal reservoir of Guantao Formation in this area is 940 to 1 100 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 9.677 3 ×10 18 J,and the amount of geothermal water recoverable resources is 2.171 3 × 10 7 m3/a.33 geothermal wells can be arranged in this area,and the reasonable well spacing is 3 950 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.
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