Evaluating The Suitability Of Exploitation Of Shallow Geothermal Resources In Heze City,shandong Province

In order to understand the exploitation potential of of shallow geothermal resources in Heze city,this study investigated the rock and soil's properties of physical mechanical,thermophysical property and hydrogeological parameter of the study area.And we investigated the geological setting,engineering geological and hydrogeological setting,also we do temperature filed measurement in the study region.By pumping test,water chemical analysis,we study the hydraulic conductivity,water yield property,water chemical property of the middle salt water This is the first time that investigated and evaluated the middle salt water of Heze city,which also provide useful parameters for estimating the heat exchange performance.We investigated the heat exchange property of different rock layer in yellow river allvial plain,by comparing the thermophysical and physical property of the rock and soil,we indified the thermophysical property changes of this area and the relationship between thermophysical and physical property of the rock.The field thermal response and laboratory thermophysical property test also help us to understand the composite thermal parameter and the physical mechanism property of different rock layers.In the geothermal temperature field measurement,we used distributed fiber-optic sensor to measure the temperature and obtained the linear relationship of the geothermal temperature field.And the changing trend of the geothermal temperature field under ground source heat pump(GSHP)application was modeled,such study provide useful parameters in obtaining the heat conductivity coefficient and thermal impedance coefficient of borehole.Finally,this study evaluate the suitability of exploitation potential of of shallow geothermal resources and proposed exploitation plan of the study area.