Imperial College London
Portrait Picture

ProfessorMartinBlunt

Faculty of Engineering, Department of Earth Science & Engineering

Chair in Flow in Porous Media
 
 
 
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Contact

 

+44 (0)20 7594 6500m.blunt Website

 
 
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Location

 

2.38ARoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Zhang:2022:10.1016/j.fuel.2022.123202,
author = {Zhang, Y and Lin, Q and Raeini, AQ and Onaka, Y and Iwama, H and Takabayashi, K and Blunt, MJ and Bijeljic, B},
doi = {10.1016/j.fuel.2022.123202},
journal = {Fuel},
pages = {1--9},
title = {Pore-scale imaging of asphaltene deposition with permeability reduction and wettability alteration},
url = {http://dx.doi.org/10.1016/j.fuel.2022.123202},
volume = {316},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - To better understand asphaltene deposition mechanisms and their influence on rock permeability and wettability, we have developed an in situ micro-CT imaging capability to observe asphaltene precipitation during multiphase flow at high resolution in three dimensions. Pure heptane and crude oil were simultaneously injected to induce asphaltene precipitation in the pore space of a sandstone rock sample. The heptane permeability across the sample was nine times lower after the first asphaltene precipitation, while it was reduced by a factor of ninety due to asphaltene migration and growth after subsequent brine injection. Furthermore, through quantifying the curvatures and contact angles on the images before and after asphaltene precipitation, we observed that the wettability of the porous medium changed from water-wet to mixed-wet. Overall, we demonstrate a micro-CT imaging and analysis workflow to quantify asphaltene deposition, permeability reduction and wettability change which can be used for reservoir characterisation and remediation.
AU  - Zhang,Y
AU  - Lin,Q
AU  - Raeini,AQ
AU  - Onaka,Y
AU  - Iwama,H
AU  - Takabayashi,K
AU  - Blunt,MJ
AU  - Bijeljic,B
DO  - 10.1016/j.fuel.2022.123202
EP  - 9
PY  - 2022///
SN  - 0016-2361
SP  - 1
TI  - Pore-scale imaging of asphaltene deposition with permeability reduction and wettability alteration
T2  - Fuel
UR  - http://dx.doi.org/10.1016/j.fuel.2022.123202
UR  - https://www.sciencedirect.com/science/article/pii/S0016236122000734?via%3Dihub
VL  - 316
ER  -
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