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Related Experiment Videos

Direct-push hydrostratigraphic profiling: coupling electrical logging and slug tests.

Stephen M Sellwood1, John M Healey, Steffen Birk

  • 1Kansas Geological Survey, 1930 Constant Ave., Campus West, University of Kansas, Lawrence, KS 66047, USA.

Ground Water
|February 25, 2005
PubMed
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Direct-push hydrostratigraphic profiling offers a cost-effective way to map subsurface variations. This method accurately characterizes hydraulic conductivity (K) and electrical conductivity (EC) without permanent wells.

Area of Science:

  • Hydrogeology
  • Environmental Science
  • Geophysics

Background:

  • Spatial variations in hydraulic conductivity (K) are critical for understanding groundwater contaminant transport.
  • Conventional field methods often lack the resolution to capture detailed subsurface property variations.
  • Accurate characterization is essential for reliable transport predictions and effective remediation strategies.

Purpose of the Study:

  • To introduce and evaluate a direct-push (DP) hydrostratigraphic profiling method.
  • To characterize the spatial variability of electrical conductivity (EC) and hydraulic conductivity (K) in unconsolidated formations.
  • To provide a cost-effective approach for detailed subsurface characterization.

Main Methods:

  • Coupling a dual-rod approach for slug tests within DP equipment.

Related Experiment Videos

  • Integrating high-resolution electrical conductivity (EC) logging.
  • Performing a series of profiles on a surface grid for 3D distribution mapping.

    • Main Results:

    • The DP hydrostratigraphic profiling method successfully characterized the 3D distribution of EC and K.
    • Good agreement was observed between K estimates from this method and conventional techniques.
    • The evaluation site was an extensively studied area in the Kansas River floodplain.

    Conclusions:

    • Direct-push hydrostratigraphic profiling is a promising technique for detailed subsurface property assessment.
    • This method provides valuable information on spatial variations in K and EC.
    • The approach eliminates the need for permanent monitoring wells, offering efficiency and cost savings.