Imperial College London
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Anna Korre

Faculty of Engineering, Department of Earth Science & Engineering

Professor of Environmental Engineering
 
 
 
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Contact

 

+44 (0)20 7594 7372a.korre Website

 
 
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Location

 

1.32BRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jahanbakhsh:2021:10.3390/en14165033,
author = {Jahanbakhsh, A and Liu, Q and Mosleh, MH and Agrawal, H and Farooqui, NM and Buckman, J and Recasens, M and Marotovaler, M and Korre, A and Durucan, S},
doi = {10.3390/en14165033},
journal = {Energies},
pages = {1--20},
title = {An investigation into co2–brine–cement–reservoir rock interactions for wellbore integrity in co2 geological storage},
url = {http://dx.doi.org/10.3390/en14165033},
volume = {14},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Geological storage of CO2 in saline aquifers and depleted oil and gas reservoirs can help mitigate CO2 emissions. However, CO2 leakage over a long storage period represents a potential concern. Therefore, it is critical to establish a good understanding of the interactions between CO2–brine and cement–caprock/reservoir rock to ascertain the potential for CO2 leakage. Accordingly, in this work, we prepared a unique set of composite samples to resemble the cement–reservoir rock inter-face. A series of experiments simulating deep wellbore environments were performed to investigate changes in chemical, physical, mechanical, and petrophysical properties of the composite samples. Here, we present the characterisation of composite core samples, including porosity, permeability, and mechanical properties, determined before and after longterm exposure to CO2rich brine. Some of the composite samples were further analysed by Xray microcomputed tomography (Xray μCT), Xray diffraction (XRD), and scanning electron microscopy–energydispersive Xray (SEM–EDX). Moreover, the variation of ions concentration in brine at different timescales was studied by per-forming inductively coupled plasma (ICP) analysis. Although no significant changes were observed in the porosity, permeability of the treated composite samples increased by an order of magnitude, due mainly to an increase in the permeability of the sandstone component of the composite samples, rather than the cement or the cement/sandstone interface. Mechanical properties, including Young’s modulus and Poisson’s ratio, were also reduced.
AU  - Jahanbakhsh,A
AU  - Liu,Q
AU  - Mosleh,MH
AU  - Agrawal,H
AU  - Farooqui,NM
AU  - Buckman,J
AU  - Recasens,M
AU  - Marotovaler,M
AU  - Korre,A
AU  - Durucan,S
DO  - 10.3390/en14165033
EP  - 20
PY  - 2021///
SN  - 1996-1073
SP  - 1
TI  - An investigation into co2–brine–cement–reservoir rock interactions for wellbore integrity in co2 geological storage
T2  - Energies
UR  - http://dx.doi.org/10.3390/en14165033
UR  - https://www.mdpi.com/1996-1073/14/16/5033
UR  - http://hdl.handle.net/10044/1/91430
VL  - 14
ER  -
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