Cooper-Bredehoeft-Papadopulos Slug Test Solution for Confined Aquifers

Description

Well configuration for Cooper et al. (1967) slug test solution

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

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

Benchmark

Comparison of AQTESOLV (blue line) and published type-curve data (Cooper et al. 1967) for α=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.

See also: solution methods, slug tests

top