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Related Experiment Videos

Uniform head in horizontal and vertical wells.

David R Steward1, Wei Jin

  • 1Department of Civil Engineering, Kansas State University, 2118 Fiedler Hall, Manhattan, KS 66506-5000, USA. steward@ksu.edu

Ground Water
|January 13, 2006
PubMed
Summary

This study extends the Thiem equation to estimate head in horizontal and partially penetrating wells using the analytic element method. The findings provide a correction factor for improved drawdown calculations in complex well geometries.

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Area of Science:

  • Hydrogeology
  • Groundwater modeling

Background:

  • The Thiem equation estimates steady-state head in fully penetrating wells.
  • Extending these estimations to non-ideal well geometries is crucial for accurate groundwater resource management.

Purpose of the Study:

  • To develop a method for estimating head in horizontal and partially penetrating wells.
  • To adapt the Thiem equation for complex well configurations using the analytic element method.

Main Methods:

  • Utilized the analytic element method to model groundwater flow.
  • Accurately reproduced uniform head boundary conditions at the well face.
  • Exercised the model across various well and aquifer parameters (length, radius, pumping rate, hydraulic conductivity, thickness).

Main Results:

Related Experiment Videos

  • Presented a method to extend Thiem equation results to horizontal and partially penetrating wells.
  • Quantified drawdown differences between vertical and complex well types.
  • Developed a correction term to adjust standard vertical well model results.

Conclusions:

  • The proposed methodology accurately estimates head in horizontal and partially penetrating wells.
  • The approach facilitates comparison of drawdown between different well designs and placements.
  • This offers a practical tool for hydrogeologists and engineers.