Pore-scale micro-CT imaging: Cluster size distribution during drainage and imbibition

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Abstract

In the present study we investigate the size and volume distribution of n-decane clusters in a brine saturated porous glass sample by means of micro-CT imaging with pore-scale resolution. Cluster size distribution functions and cluster volumes were obtained by image analysis for a range of injected pore volumes under both imbibition and drainage conditions, and with a field of view larger than the porosity-based representative elementary volume (REV). n-decane clusters were found to be distributed in sizes greater than that of the REV, with the largest one containing between 65 and 99% of the entire non-wetting phase. The results indicate that the two-phase REV may be substantially larger than for single-phase flow and larger than the attainable field of view. © 2012 The Authors. Published by Elsevier Ltd.

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Georgiadis, A., Berg, S., Maitland, G., & Ott, H. (2012). Pore-scale micro-CT imaging: Cluster size distribution during drainage and imbibition. In Energy Procedia (Vol. 23, pp. 521–526). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2012.06.033

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