The initial time interval dominated by wellbore storage and hydraulic fracture effects (see ETR at Fig. 1)
Fig. 1. PTA Diagnostic Plot with ETR, MTR and LTR time zones. Pressure drop is in blue and log-derivative is in red. |
See Also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing / Pressure Testing / Pressure Transient Analysis (PTA) / PTA Diagnostic Plot
[ Well & Reservoir Surveillance ] [ Pressure Diffusion ]