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The traditional method of using this presentation is in conjunction with type-curves for a
particular well model (see figure below).
Fig. 4.C.2 – Blasingame type curve
This plot is used as a diagnostic tool, where the data and a model response are compared. The
model can be any model, analytical or numerical, single or multi-well, etc. One can either
display the ‘true’ model response, i.e. the response to the full pressure history, or the
response to a single pressure step. The single step response shows the signature of the model
in a clear, and usable form, whereas the response to the real history is usually very erratic,
because the equivalent time is jumping back and forth in time.
Fig. 4.C.3 – Blasingame plot with ‘true’ model response