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Determining the hydraulic properties of saturated, low-permeability geological materials in the laboratory: Advances in theory and practice

By:
, , , ,
Edited by:
Sara M.N.Everett L.G.

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Abstract

The accurate hydraulic characterization of low-permeability subsurface environments has important practical significance. In order to examine this issue from the perspective of laboratory-based approaches, we review some recent advancements in the theoretical analyses of three different laboratory techniques specifically applied to low-permeability geologic materials: constant-head, constant flow-rate and transient-pulse permeability tests. Some potential strategies for effectively decreasing the time required to confidently estimate the permeability of these materials are presented. In addition, a new and versatile laboratory system is introduced that can implement any of these three test methods while simultaneously subjecting a specimen to high confining pressures and pore pressures, thereby simulating in situ conditions at great depths. The capabilities and advantages of this innovative system are demonstrated using experimental data derived from Shirahama sandstone and Inada granite, two rock types widely encountered in Japan.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Determining the hydraulic properties of saturated, low-permeability geological materials in the laboratory: Advances in theory and practice
Issue:
1415
Year Published:
2002
Language:
English
Larger Work Title:
ASTM Special Technical Publication
First page:
83
Last page:
98
Number of Pages:
16
Conference Title:
Evaluation and Remediation of Low Permeability and Dual Porosity Environments
Conference Location:
Reno, NV
Conference Date:
25 January 2001 through 25 January 2001