Thermal Reservoir Characterization and Geothermal Resources Assessment of The Guantao Formation In Luyi County, Henan Province

Luyi area is rich in geothermal resources. Through the study of geological structure and formation conditions in Luyi area, combined with geothermal well drilling and digital logging, it is found that the sandstone aquifer of Guantao Formation has a deep burial depth of about 1050m and a thickness of 300m. It contains several sandstone aquifers with a thickness of about 1500m. According to the pumping test curve of Luyi DR1 geothermal well, the average permeability coefficient K of thermal reservoir is calculated as 0.0457m/d, and the water conductivity coefficient T=KM=10.4653m2/d. The heat extracted from Shengshijiayuanyuan geothermal well in one year is as follows: QW=1.162×1014J/a, equivalent to 3.971×103T/a for standard coal (calorific value of standard coal is 2.926×1010J/t)