Analysis of pumping tests: Significance of well diameter, partial penetration, and noise

Manoutchehr Heidari, Kamran Ghiassi, Edward Mehnert

Research output: Contribution to journalArticlepeer-review

Abstract

The nonlinear least squares method was applied to pumping and recovery aquifer test data in confined and unconfined aquifers with finite diameter and partially penetrating piezometers and observation wells. Noiseless and moderately noisy drawdown data from observation points located less than two saturated thicknesses of the aquifer from the pumping well produced a set of parameters that agrees very well with piezometer test data when the diameter of the pumping well was included in the analysis. The accuracy of the estimated parameters decreased with increasing noise level.

Original languageEnglish (US)
Pages (from-to)333-347
Number of pages15
JournalJournal of the American Water Resources Association
Volume35
Issue number2
DOIs
StatePublished - Apr 1999

Keywords

  • Aquifer parameter estimation
  • Finite diameter well
  • Noisy data
  • Nonlinear least squares
  • Partial penetration
  • Piezometer location
  • Pumping test
  • Recovery test

ASJC Scopus subject areas

  • Ecology
  • Water Science and Technology
  • Earth-Surface Processes

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