Imperial College London
Alternate

DrRonnyPini

Faculty of Engineering, Department of Chemical Engineering

Reader in Chemical Engineering
 
 
 
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Contact

 

+44 (0)20 7594 7518r.pini Website

 
 
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Location

 

415ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kurotori:2021:10.1016/j.advwatres.2021.103938,
author = {Kurotori, T and Pini, R},
doi = {10.1016/j.advwatres.2021.103938},
journal = {Advances in Water Resources},
pages = {1--12},
title = {A general capillary equilibrium model to describe drainage experiments in heterogeneous laboratory rock cores},
url = {http://dx.doi.org/10.1016/j.advwatres.2021.103938},
volume = {152},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Macroscopic observations of two-phase flow in porous rocks are largely affected by the heterogeneity in continuum properties at length scales smaller than a typical laboratory sample. The ability to discriminate among therock properties at the origin of the heterogeneity is key to the development of numerical models to be used forprediction. Here, we present a capillary equilibrium model that represents spatial heterogeneity in dual-porosityporous media in terms of the capillary entry pressure, 1, and the irreducible wetting phase saturation, ir. Bothparameters are used to scale local capillary pressure curves by using three-dimensional imagery acquired duringmulti-rate gas/liquid drainage displacements. We verify the proposed approach by considering the case studyof a dual-porosity limestone core and use the spatial variation in ir as proxy for microporosity heterogeneity.The latter places potentially next-to-leading order controls on the observed fluid saturation distribution, whichis strongly correlated to the distribution of 1. While microporosity is by and large uniform at the observationscale on the order of 0.1 cm3, the spatial correlation of 1 is on the order of 1 cm and is therefore not statisticallyrepresented in the volume of typical laboratory core samples.
AU  - Kurotori,T
AU  - Pini,R
DO  - 10.1016/j.advwatres.2021.103938
EP  - 12
PY  - 2021///
SN  - 0309-1708
SP  - 1
TI  - A general capillary equilibrium model to describe drainage experiments in heterogeneous laboratory rock cores
T2  - Advances in Water Resources
UR  - http://dx.doi.org/10.1016/j.advwatres.2021.103938
UR  - https://www.sciencedirect.com/science/article/pii/S0309170821000932?via%3Dihub
UR  - http://hdl.handle.net/10044/1/89542
VL  - 152
ER  -
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