Analysis and modelling of the hydraulic conductivity in aquitards : application to the Galilee Basin and the Great Artesian Basin, Australia

Jiang, Zhenjiao (2014) Analysis and modelling of the hydraulic conductivity in aquitards : application to the Galilee Basin and the Great Artesian Basin, Australia. PhD by Publication, Queensland University of Technology.

Abstract

In large sedimentary basins with layers of different rocks, the groundwater flow between aquifers depends on the hydraulic conductivity (K) of the separating low-permeable rocks, or aquitards. Three methods were developed to evaluate K in aquitards for areas with limited field data:

• Coherence and harmonic analysis: estimates the regional-scale K based on water-level fluctuations in adjacent aquifers.

• Cokriging and Bayes' rule: infers K from downhole geophysical logs.

• Fluvial process model: reproduces the lithology architecture of sediment formations which can be converted to K.

These proposed methods enable good estimates of K and better planning of further drillholes.

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164 since deposited on 18 Jul 2014
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ID Code: 73181
Item Type: QUT Thesis (PhD by Publication)
Supervisor: Cox, Malcolm, Schrank, Christoph, & Raiber, Matthias
Keywords: Aquitard, Hydraulic conductivity, Great Artesian Basin, Geostatistics, Fluvial processes model, Coherence analysis, Spectral analysis, Harmonic analysis, kriging
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Institution: Queensland University of Technology
Deposited On: 18 Jul 2014 04:30
Last Modified: 04 Sep 2015 02:30

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