A Physically Based Approach for Estimating Hydraulic Conductivity from  HPT  Pressure and Flowrate | Zendy

Borden Robert C. | Zendy; Cha Ki Young | Zendy; Liu Gaisheng | Zendy

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A Physically Based Approach for Estimating Hydraulic Conductivity from HPT Pressure and Flowrate

Author(s) -

Borden Robert C.,

Cha Ki Young,

Liu Gaisheng

Publication year - 2020

Publication title -

groundwater

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.84

H-Index - 94

eISSN - 1745-6584

pISSN - 0017-467X

DOI - 10.1111/gwat.13039

Subject(s) - hydraulic conductivity , conductivity , volumetric flow rate , permeability (electromagnetism) , work (physics) , mechanics , materials science , analytical chemistry (journal) , soil science , mathematics , chemistry , thermodynamics , physics , environmental science , chromatography , biochemistry , membrane , soil water

The hydraulic profiling tool (HPT) is widely used to generate profiles of relative permeability vs. depth. In this work, prior numerical modeling results are used to develop a relationship between probe advance rate V (cm/s), probe diameter D (cm), water injection rate Q (mL/min), corrected pressure P c (psi), and hydraulic conductivity K (feet/d) (1) K = E 0.1235VD 2 + 0.119 QP c − 1.017where E is an empirically derived hydraulic efficiency factor. The relationship is validated by 23 HPT profiles that, after averaging K vertically, were similar to slug test results in adjoining monitoring wells. The best fit value of E for these profiles was 2.02. This equation provides a physically based approach for generating hydraulic conductivity profiles with HPT tooling.

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