High-Resolution Wellbore Temperature Logging Combined with a Borehole-Scale Heat Budget: Conceptual and Analytical Approaches to Characterize Hydraulically Active Fractures and Groundwater Origin

Figure 5

Comparison of advection and conduction heat fluxes at the borehole scale. = (total flow rate, temperature offset due to groundwater inflow) and = (distance of radial temperature propagation into the aquifer, offset).