KGS Slug Test Solution for Confined or Unconfined Aquifers

Advanced Software for Pumping Tests/Slug Tests/Constant-Head Tests	Official Developer Web Site by HydroSOLVE, Inc.
KGS Model
The World's LEADING Aquifer Test Analysis Software Since 1989! Celebrating 20 Years!

Quick Links

Import Wizard

Pumping Tests

Step Tests

Slug Tests

Constant-Head Tests

Join Users' Group

Brochure (pdf)

Recommended Book:

Butler (1998)

Hyder et al. (KGS Model) Slug Test Solution for Confined and Unconfined Aquifers

Description

A mathematical solution by Hyder et al. (1994) is useful for determining the hydraulic conductivity of unconfined and 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 KGS Slug Test Model 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 KGS Slug Test Model:

	aquifer has infinite areal extent
	aquifer is homogeneous and of uniform thickness
	aquifer potentiometric surface is initially horizontal
	test well is fully or partially penetrating
	a volume of water, V, is injected or discharged from the well instantaneously
	aquifer is confined or unconfined
	flow is unsteady

Solution Options

AQTESOLV provides the following options for the KGS Slug Test Model:

	partially penetrating wells
	hydraulic conductivity anisotropy
	wellbore skin effect
	observation wells

Benchmark

Comparison of AQTESOLV (blue line) and computer program available from KGS (symbols) for a slug test in a confined aquifer.

References

Hyder, Z, J.J. Butler, Jr., C.D. McElwee and W. Liu, 1994. Slug tests in partially penetrating wells, Water Resources Research, vol. 30, no. 11, pp. 2945-2957.