eprintid: 11367
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/13/67
datestamp: 2023-11-10 03:25:53
lastmod: 2023-11-10 03:25:53
status_changed: 2023-11-10 01:15:06
type: article
metadata_visibility: show
creators_name: Rezk, M.G.
creators_name: Foroozesh, J.
title: Study of convective-diffusive flow during CO2 sequestration in fractured heterogeneous saline aquifers
ispublished: pub
keywords: Aquifers; Carbon dioxide; Dissolution; Hydrogeology; Surface roughness, CO2 sequestration; Density driven flows; Dissolution trapping; Fractured aquifer; High permeability; Matrix permeability; Multiple fracture systems; Vertical fracture, Fracture
note: cited By 24
abstract: CO2 sequestration in naturally fractured saline aquifers is important to be studied. This paper investigates the convective-diffusive flow to study CO2 sequestration by dissolution in single and multi-fractured heterogeneous saline aquifers. The effect of fractures density, orientation, permeability, aperture and surface roughness on CO2 dissolution and propagation of density-driven fingers are investigated. The results indicate that a single fracture causes the growing density fingers to deviate towards the high permeability path of the fracture. Additionally, the higher vertical fracture orientation, aperture and permeability will lead to a higher CO2 storage. In the multiple fracture systems, matrix permeability has a dominant and positive effect on CO2 storage. Nevertheless, the effect of fractures properties such as fracture density, spacing, permeability, aperture and surface roughness on the CO2 storage are dependent on the fractures orientation. For instance, having fractures with rough surface can cause CO2 dissolution retardation in the aquifers with only vertical fractures. This study provides more insights into dissolution trapping of CO2 in fractured heterogeneous saline aquifers. © 2019 Elsevier B.V.
date: 2019
publisher: Elsevier B.V.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85068465402&doi=10.1016%2fj.jngse.2019.102926&partnerID=40&md5=7b7c339256b115570c2f0e6586babc97
id_number: 10.1016/j.jngse.2019.102926
full_text_status: none
publication: Journal of Natural Gas Science and Engineering
volume: 69
refereed: TRUE
issn: 18755100
citation:   Rezk, M.G. and Foroozesh, J.  (2019) Study of convective-diffusive flow during CO2 sequestration in fractured heterogeneous saline aquifers.  Journal of Natural Gas Science and Engineering, 69.   ISSN 18755100