Imperial College London
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DrSteffenBerg

Faculty of Engineering, Department of Earth Science & Engineering

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Contact

 

steffen.berg Website

 
 
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Location

 

1M10cACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lin:2021:10.1016/j.ces.2021.116464,
author = {Lin, Q and Bijeljic, B and Foroughi, S and Berg, S and Blunt, MJ},
doi = {10.1016/j.ces.2021.116464},
journal = {Chemical Engineering Science},
pages = {1--12},
title = {Pore-scale imaging of displacement patterns in an altered-wettability carbonate},
url = {http://dx.doi.org/10.1016/j.ces.2021.116464},
volume = {235},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - High-resolution X-ray imaging combined with a steady-state flow experiment is used to demonstrate how pore-scale displacement affects macroscopic properties in an altered-wettability microporous carbonate, where porosity and fluid saturation can be directly obtained from the grey-scale micro-CT images. The resolvable macro pores are largely oil-wet with an average thermodynamic contact angle of 120°. The pore-by-pore analysis shows locally either oil or brine almost fully occupied the macro pores, with some oil displacement in the micro-porosity. We observed a typical oil-wet behaviour consistent with the contact angle measurement. The brine tended to occupy the larger macro pores, leading to a higher brine relative permeability, lower residual oil saturation, than under water-wet conditions and in a mixed-wet sandstone. The capillary pressure was negative and seven times larger in the carbonate than the sandstone, despite having a similar average pore size. These different displacement patterns are principally determined by the difference in wettability.
AU  - Lin,Q
AU  - Bijeljic,B
AU  - Foroughi,S
AU  - Berg,S
AU  - Blunt,MJ
DO  - 10.1016/j.ces.2021.116464
EP  - 12
PY  - 2021///
SN  - 0009-2509
SP  - 1
TI  - Pore-scale imaging of displacement patterns in an altered-wettability carbonate
T2  - Chemical Engineering Science
UR  - http://dx.doi.org/10.1016/j.ces.2021.116464
UR  - https://www.sciencedirect.com/science/article/pii/S0009250921000294?via%3Dihub
UR  - http://hdl.handle.net/10044/1/87283
VL  - 235
ER  -
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