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Table 2 Characteristic properties of the flow regimes of interest; analytical model versus classification for real-world parameter space

From: Hydraulic behavior of fault zones in pump tests of geothermal wells: a parametric analysis using numerical simulations for the Upper Jurassic aquifer of the North Alpine Foreland Basin

Flow type Radial Bilinear Linear Negative boundary
Analytical model properties
 dP slope 0.25 0.5 1
 DER slope 0 0.25 0.5 1
 Additional properties At the same time At the same time DER slope over a log cycle early at slope 1 than dP
Classification for automated PTA
 dP slope 0.15–0.375 0.375–0.6 0.6–1.0
 DER slope 0–0.15 0.15–0.375 0.375–0.6 0.6–1.0