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See PTA Type Library for a wide range of typical PTA Diagnostic Plots.
Fig. 1. PTA Diagnostic Plot for vertical well in single-layer homogeneous reservoir without boundaries. Pressure is in blue and log-derivative is in red. | Fig. 2. PTA Diagnostic Plot for vertical well in single-layer homogeneous reservoir |
with impermeable circle boundary. Pressure is in blue and log-derivative is in red. | Fig. 3. PTA Diagnostic Plot for vertical well in single-layer homogeneous reservoir with constant pressure boundary. Pressure is in blue and log-derivative is in red. |