Cooper-Bredehoeft-Papadopulos Slug Test Solution for Confined Aquifers

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Cooper-Bredehoeft-Papadopulos Slug Test Solution for Confined Aquifers

Description

A mathematical solution by Cooper, Bredehoeft and Papadopulos (1967) is useful for determining the hydraulic properties (transmissivity and storage coefficient) of confined aquifers. Analysis involves matching a type curve solution to water-level displacement data collected during a slug test.

AQTESOLV provides visual and automatic methods for matching the Cooper-Bredehoeft-Papadopulos solution to slug test data. This easy-to-use and intuitive software promotes rapid and accurate determination of aquifer properties.

Assumptions

The following assumptions apply to the use of the Cooper-Bredehoeft-Papadopulos solution:

	aquifer has infinite areal extent
	aquifer is homogeneous, isotropic and of uniform thickness
	aquifer potentiometric surface is initially horizontal
	test well is fully penetrating
	a volume of water, V, is injected or discharged from the well instantaneously
	flow to test well is horizontal
	aquifer is confined
	flow is unsteady
	water is released instantaneously from storage with decline of hydraulic head

Benchmark

Comparison of AQTESOLV (blue line) and published data for a=0.0001 (symbols).

References

Cooper, H.H., J.D. Bredehoeft and S.S. Papadopulos, 1967. Response of a finite-diameter well to an instantaneous charge of water, Water Resources Research, vol. 3, no. 1, pp. 263-269.