Journal article
CO2-induced mechanical behaviour of Hawkesbury sandstone in the Gosford basin: An experimental study
TD Rathnaweera, PG Ranjith, MSA Perera, A Haque, A Lashin, N Al Arifi, D Chandrasekharam, SQ Yang, T Xu, SH Wang, E Yasar
Materials Science and Engineering A | ELSEVIER SCIENCE SA | Published : 2015
Abstract
Carbon dioxide (CO2) sequestered in saline aquifers undergoes a variety of chemically-coupled mechanical effects, which may cause CO2-induced mechanical changes and time-dependent reservoir deformation. This paper investigates the mineralogical and microstructural changes that occur in reservoir rocks following injection of CO2 in deep saline aquifers and the manner in which these changes influence the mechanical properties of the reservoir rocks. In this study, cylindrical sandstone specimens, 38mm in diameter and 76mm high, obtained from the Gosford basin, were used to perform a series of unconfined compressive strength (UCS) tests. Different saturation conditions: dry, water- and brine-sa..
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Awarded by Australian Research Council
Funding Acknowledgements
This research was supported under Australian Research Council's Discovery Projects funding scheme (project number DP120103003). The authors (Ranjith, Aref and Nassir) extend their appreciation to the Deanship of Scientific Research at King Saud University, Saudi Arabia, for funding the work through the international research group project (IRG14-36).