The following figure illustrates the simplicity of the Agarwal method in the analysis of a recovery test. In this example, I matched the familiar Theis type curve, normally applied to drawdown data, to estimate aquifer properties from recovery test data (USBR 1995).
|Agarwal recovery analysis using Theis (1935) solution.|
|Agarwal recovery analysis using Cooper-Jacob (1946) solution with derivative.|
Learn more about the Agarwal method in Aquifer Testing 101 at the AQTESOLV web site.