A simple correction for slug tests in small-diameter wells.
A simple procedure is presented for correcting hydraulic conductivity (K) estimates obtained from slug tests performed in small-diameter installations screened in highly permeable aquifers. Previously reported discrepancies between results from slug tests in small-diameter installations and those from tests in nearby larger-diameter wells are primarily a product of frictional losses within the small-diameter pipe. These frictional losses are readily incorporated into existing models for slug tests in high-K aquifers, which then serve as the basis of a straightforward procedure for correcting previously obtained K estimates. A demonstration of the proposed procedure using data from a series of slug tests performed in a controlled field setting confirms the validity of the approach. The results of this demonstration also reveal the detailed view of spatial variations in K that can be obtained using slug tests in small-diameter installations.
Butler
James J
JJ
Kansas Geological Survey, University of Kansas, Lawrence 66047, USA. jbutler@kgs.ukans.edu
D008962:Models, Theoretical; D015203:Reproducibility of Results; D014872:Water Movements; D014881:Water Supply