Articles | Volume 20, issue 1
Research article
15 Jan 2016
Research article |  | 15 Jan 2016

Accelerated gravity testing of aquitard core permeability and implications at formation and regional scale

W. A. Timms, R. Crane, D. J. Anderson, S. Bouzalakos, M. Whelan, D. McGeeney, P. F. Rahman, and R. I. Acworth

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Revised manuscript not accepted

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Cited articles

Acworth, R. I. and Timms, W.: Evidence for connected water processes through smectite dominated clays at Breeza, New South Wales, Aust. J. Earth Sci., 56, 81–96, 2009.
Acworth, R. I., Timms, W. A., Kelly, B. F. J., McGeeney, D., Ralph, T. J., Larkin, Z. T., and Rau, G. C.: Late Cenozoic Palaeovalley fill sequence from the Southern Liverpool Plains, New South Wales – implications for groundwater resource evaluation, Aust. J. Earth Sci., 62, 657–680, 2015.
Ahn, H. S. and Young Jo, H. Y.: Influence of exchangeable cations on hydraulic conductivity of compacted bentonite, Appl. Clay Sci., 44, 144–150, 2009.
API: Recommended Practices for Core Analysis. Recommended Practice 40, 2nd Edn., American Petroleum Institute Publishing Services, Washington DC, 1998.
APLNG: Groundwater Assessment, Australia Pacific LNG Upstream Project Phase 1, Q-LNG01-15-TR-1801, Australia Pacific LNG, Milton, Queensland, Australia, 266 pp., 2013.
Short summary
Low permeability sediments and rock can leak slowly, yet can act as important barriers to flow for resource development and for waste sequestration. Relatively rapid and reliable hydraulic tests of "tight" geological materials are possible by accelerating gravity. Results from geotechnical centrifuge testing of drill core and in situ pore pressure monitoring were compared with a regional flow model, and considered in the context of inherent geological variability at site and formation scale.