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Analytical equations and methods for aquifer test analysis
Unsteadystate flow equation: Equation for quasisteadystate flow period: where
Methods of analysis and parameters being estimated
In the last equation r1 can be replaced by the distance to any pumping well (this distance is used for hydraulic diffusivity estimation by type line method).

Simultaneous start and simultaneous shutdown of all pumping wells is assumed.
Unsteadystate flow equation: Equation for quasisteadystate flow period: where
Methods of analysis and parameters being estimated

Simultaneous start and simultaneous shutdown of all pumping wells is assumed.
Unsteadystate flow equation: Equation for quasisteadystate flow period: where
Methods of analysis and parameters being estimated

Simultaneous start and simultaneous shutdown of all pumping wells is assumed.
Unsteadystate flow equation: where
Methods of analysis and parameters being estimated
1) method is applied for drawdown analysis only.

Unsteadystate flow equation: Equation for quasisteadystate flow period: where
Methods of analysis and parameters being estimated
Nt – number of pumping wells at time t; ti – time at which pumping of the ith well started. 1) the number of straightline intervals of the plot corresponds to the number of pumping well starting times; 2) all observation points fall on a straight line.
