Influence of Permeability and Injection Orientation Variations on Dispersion Coefficient during Enhanced Gas Recovery by CO 2 Injection

Muhammad Kabir Abba, Athari Al-Otaibi, Abubakar Jibrin Abbas, Ghasem Ghavami Nasr and Martin Burby
Additional contact information
Muhammad Kabir Abba: Petroleum and Gas Research Group, The University of Salford, Manchester M4 5WT, UK
Athari Al-Otaibi: Petroleum and Gas Research Group, The University of Salford, Manchester M4 5WT, UK
Abubakar Jibrin Abbas: Petroleum and Gas Research Group, The University of Salford, Manchester M4 5WT, UK
Ghasem Ghavami Nasr: Petroleum and Gas Research Group, The University of Salford, Manchester M4 5WT, UK
Martin Burby: Petroleum and Gas Research Group, The University of Salford, Manchester M4 5WT, UK

Energies, 2019, vol. 12, issue 12, 1-16

Abstract: This investigation was carried out to highlight the influence of the variation of permeability of the porous media with respect to the injection orientations during enhanced gas recovery (EGR) by CO 2 injection using different core samples of different petrophysical properties. The laboratory investigation was performed using core flooding technique at 1300 psig and 50 °C. The injection rates were expressed in terms of the interstitial velocities to give an indication of its magnitude and variation based on the petrophysical properties of each core sample tested. Bandera Grey , Grey Berea , and Buff Berea sandstone core samples were used with measured permeabilities of 16.08, 217.04, and 560.63 md, respectively. The dispersion coefficient was observed to increase with a decrease in permeability, with Bandera Grey having the highest dispersion coefficient and invariably higher mixing between the injected CO 2 and the nascent CH 4 . Furthermore, this dispersion was more pronounced in the horizontal injection orientation compared to the vertical orientation with, again, the lowest permeability having a higher dispersion coefficient in the horizontal orientation by about 50%. This study highlights the importance of the permeability variation in the design of the injection strategy of EGR and provides a revision of the CO 2 plume propagation at reservoir conditions during injection.

Keywords: enhanced gas recovery; longitudinal dispersion coefficient; injection orientation; supercritical CO 2; CO 2 permeability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/12/2328/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/12/2328/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:12:p:2328-:d:240771

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().