In this section
@inproceedings{Darraj:2025:10.2118/225555-MS,
author = {Darraj, N and Manoorkar, S and Spurin, C and Foroughi, S and Saleh, M and Cunsolo, V and Berg, S and Pini, R and Blunt, MJ and Krevor, S},
doi = {10.2118/225555-MS},
title = {Pore-Scale Investigation of Heterogeneity Effects on Saturation and Trapping for Geological CO2 Storage in Dolomites},
url = {http://dx.doi.org/10.2118/225555-MS},
year = {2025}
}
TY - CPAPER
AB - The effectiveness of subsurface CO<inf>2</inf> storage is intrinsically tied to our understanding of how geological heterogeneity-particularly at the pore scale-influences multiphase flow behaviour. This is especially true in carbonate formations, where the inherent complexity and spatial variability of pore structures can significantly alter fluid displacement dynamics, trapping efficiency, and overall storage performance. Unlike sandstone rocks, carbonates often exhibit a wide range of pore types, each contributing differently to connectivity and capillary forces. These small-scale variations in pore morphology and wettability can result in highly localized saturation patterns, which in turn govern the CO<inf>2</inf> pathways during injection and post-injection phases. In this study, 3D micro-CT imaging at a voxel size of 5.6 μm was employed to examine the Edwards Brown dolomite, capturing pore-scale heterogeneities that are typically unresolved in core-scale experiments. The imaging resolution enables direct observation of both the small features and larger macropore networks, offering a more complete representation of the carbonate pore system. The resulting pore-scale analysis reveals that spatial variations in porosity and capillary entry pressure lead to selective phase invasion and heterogeneous saturation distributions in both the wetting (brine) and non-wetting (decane was used as an analogue fluid) phases. These conditions generate discontinuous and tortuous flow pathways, which disrupt the assumption of uniform displacement typically embedded in upscaled reservoir models. This challenges conventional upscaling approaches that often homogenize heterogeneity, potentially overlooking the nuanced mechanisms that influence CO<inf>2</inf> immobilization. By quantifying these effects, the study provides a framework for refining predictive models that account for heterogeneity-driven flow modifications-offering more realist
AU - Darraj,N
AU - Manoorkar,S
AU - Spurin,C
AU - Foroughi,S
AU - Saleh,M
AU - Cunsolo,V
AU - Berg,S
AU - Pini,R
AU - Blunt,MJ
AU - Krevor,S
DO - 10.2118/225555-MS
PY - 2025///
TI - Pore-Scale Investigation of Heterogeneity Effects on Saturation and Trapping for Geological CO2 Storage in Dolomites
UR - http://dx.doi.org/10.2118/225555-MS
ER -