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Analytical equations and methods for aquifer test analysis

 

Unsteady-state flow equations for recharge boundary conditions:

1) drawdown in a piezometer (Hantush)

Laplace transform solution:

zp = LTp

 

2) average drawdown in an observation well (Hantush)

Laplace transform solution:

 

3) average drawdown in an observation well (Moench)

4) drawdown in a piezometer (Moench)

 

Unsteady-state flow equations for no-flow boundary conditions:

1) drawdown in a piezometer (Hantush)

Laplace transform solution:

 

2) average drawdown in an observation well (Hantush)

Laplace transform solution:

 

3) average drawdown in an observation well (Moench)

4) drawdown in a piezometer (Moench)

 

Unsteady-state flow equations for recharge and no-flow boundary conditions

1) drawdown in a piezometer (Hantush)

Laplace transform solution:

 

2) average drawdown in an observation well (Hantush)

Laplace transform solution:

 

3) average drawdown in an observation well (Moench)

4) drawdown in a piezometer (Moench)

 

Methods of analysis and parameters being estimated

Parameters for isotropic aquifer – k, a.

 

Methods of analysis and parameters being estimated for multi-well and variable discharge rate pumping test