Typecurve Plot

The typecurve plot contains four sets of typecurves which can be viewed either together or separately using the Plot Options checkboxes on the Analysis tab:

1. Normalized Rate

2. Raw Data Derivative

3. Derivative (not available in Wattenbarger)

4. Beta-Derivative (in the fracture model; not available in Transient)

The objective of the typecurve analysis is to move the data over top of the family of typecurves until the data points match one of the typecurves as closely as possible. This is done by clicking the Reposition Data on Plot icon () on the plot toolbar, and dragging the data across the screen.

We recommend beginning the match with normalized rate data and typecurves. To add further confidence in the match, use of the derivative (Agarwal-Gardner, Wattenbarger), integral and derivative (Blasingame, NPI, Transient), or cumulative production (Fetkovich) options to assist in providing a more unique analysis. When one of the typecurve sets is disabled, both the data points and associated typecurves are removed from the plot.