Issue 2, 2022
From the journal:

Energy Advances

Monitoring the CO2 enhanced oil recovery process at the nanoscale: an in situ neutron scattering study†

Konstantinos L. Stefanopoulos, ORCID logo *a   Evangelos P. Favvas, ORCID logo a   Georgios N. Karanikolos,bc   Waleed Alameri,d   Vassilios C. Kelessidis,d   Tristan G. A. Youngse  and  Daniel T. Bowrone  

* Corresponding authors

a Institute of Nanoscience & Nanotechnology, NCSR “Demokritos”, 153 10 Ag. Paraskevi Attikis, Athens, Greece
E-mail: k.stefanopoulos@inn.demokritos.gr

b Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates

c Research and Innovation Center on CO2 and H2 (RICH), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates

d Department of Petroleum Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates

e ISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, UK

Abstract

The CO2 Enhanced Oil Recovery (CO2-EOR) process was monitored in real time at the nanoscale by neutron scattering. This was achieved by in situ injection of supercritical CO2 into a limestone sample loaded with deuterated n-decane. The experimental results show directly the decane displacement upon supercritical CO2 injection. The structure of CO2 confined in the pores has also been evaluated and compared to that in the bulk state. Finally, analysis of the neutron results shows that small mesopores have low accessibility to CO2 suggesting that they will not be available for storage for geologic CO2 sequestration.

Graphical abstract: Monitoring the CO2 enhanced oil recovery process at the nanoscale: an in situ neutron scattering study

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Article information

DOI
https://doi.org/10.1039/D1YA00058F
Article type
Paper
Submitted
23 Nov 2021
Accepted
12 Jan 2022
First published
14 Jan 2022
This article is Open Access
Creative Commons BY license

Energy Adv., 2022,1, 67-75

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Monitoring the CO2 enhanced oil recovery process at the nanoscale: an in situ neutron scattering study

K. L. Stefanopoulos, E. P. Favvas, G. N. Karanikolos, W. Alameri, V. C. Kelessidis, T. G. A. Youngs and D. T. Bowron, Energy Adv., 2022, 1, 67 DOI: 10.1039/D1YA00058F

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