Construction of Thermal Conductivity Model of Deep Geothermal Reservoir Pore Structure Based on REV Description Method
With the proposed goal of"carbon neutrality,peak carbon dioxide emissions",the re-search and utilization of geothermal energy have been developed rapidly.In the process of geothermal energy development,reasonable heating,accurate survey and natural recovery have a great impact on the effective utilization of geothermal energy,so there are some deficiencies in the current research.According to the dynamic change characteristics of micro-structure in the development process,pore karst deep geothermal reservoir is divided into development area,fluctuation area and original area.Based on REV(Representative Elementary Volume)method,the deep geothermal reservoir was characterized and the descriptive parameters were given.Based on this,the thermal conductivity analysis model of deep geothermal reservoir was constructed.With granite as an example,the nu-merical simulation was carried out to analyze the influence of pore water content and pore impurity content on thermal conductivity of geothermal reservoir.The work done in this paper can provide a basis for accurate analysis of reservoir heat transfer characteristics and dynamic changes in mining process.
NETL
NSTL
万方数据
