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Microstructural controls on the pressure-dependent permeability of Whitby Mudstone

Microstructural controls on the pressure-dependent permeability of Whitby Mudstone

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1144/SP454.15. This is version 1 of this Preprint.

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Authors

Julian Mecklenburgh , Kevin G. Taylor, Ernie Rutter, Rosanne Mckernan

Abstract

A combination of permeability and ultrasonic velocity measurements allied with image analysis is used to distinguish the primary microstructural controls on effective-pressure dependent permeability. Permeabilities of cylindrical samples of Whitby Mudstone were measured using the oscillating pore pressure method at confining pressures ranging between 30-95 MPa and pore pressures ranging between 1-80 MPa. The permeability-effective pressure relationship is empirically described using a modified effective pressure law in terms of confining pressure, pore pressure and a Klinkenberg effect. Measured permeability ranges between 3×10-21 m2 and 2...  more

DOI

https://doi.org/10.31223/osf.io/kyvbg

Subjects

Earth Sciences, Geology, Physical Sciences and Mathematics

Keywords

shale gas, permeability

Dates

Published: 2018-01-09 03:01

License

Academic Free License (AFL) 3.0