eprintid: 15575 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/55/75 datestamp: 2023-11-10 03:30:12 lastmod: 2023-11-10 03:30:12 status_changed: 2023-11-10 01:59:49 type: conference_item metadata_visibility: show creators_name: Hamza, M.F. creators_name: Soleimani, H. creators_name: Ahmed, A.A. creators_name: Ali, H. title: Assessment of In-Depth Transport and Retention of Zinc Oxide Nanoparticles Using a Coreflood Approach ispublished: pub note: cited By 1; Conference of 6th International Conference on Fundamental and Applied Sciences, ICFAS 2020 ; Conference Date: 13 July 2021 Through 15 July 2021; Conference Code:270909 abstract: The study is aimed at investigating the in-depth migration and retention of ZnO nanoparticles (NPs) used in enhanced oil recovery. The nanofluid (0.03) was prepared according to a standard procedure of dispersing the NPs in brine. The hydrodynamic diameter and zeta potential (ζ) were investigated to ascertain the aggregation and stability of the NPs in brine, respectively. The flooding scenarios were maintained throughout at 0.2 mL minâ��1 flow rate and started by injecting 2 pore volume (PV) of brine followed by 3 PV of nanofluid and lastly another 3 PV of brine post-flush. The effluents were collected at around every 0.2 PV to ascertain the NPs breakthrough, while the pressure drop (â��p) across the core was recorded to assess the in-depth migration and retention of the NPs. The rockâ��s permeability (K) and porosity (ɸ) before and after the flooding was investigated to further ascertain the impairment of the rock properties due to possible retention of the NPs. The results of the â��p show that nanofluid could generate â��p of 109 ± 19 mbar slightly higher than the waterflood baseline (107 ± 12 mbar) due to structural disjoining pressure resulting from spreading of the NPs in the core. However, large â��p (210 ± 29 mbar) was noticeable after brine post-flush signifying trapping of the NPs in the porous media. The NPs effluent concentration profile shows that a breakthrough had occurred after injecting 1.53 PV having a lower concentration than the initial injection. Further analysis of K and ɸ after the NPs injection revealed that the K and ɸ had reduced by 52 and 23.3, respectively due to the NPs trapping. These observations could be related to high aggregation (415 ± 34 nm) of the ZnO in brine with moderate stability of â�� 35 ± 3 mV as described by the ζ. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. date: 2021 publisher: Springer Science and Business Media B.V. official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123275507&doi=10.1007%2f978-981-16-4513-6_29&partnerID=40&md5=659ec77d0497fef1183c8b74dcb46363 id_number: 10.1007/978-981-16-4513-6₂₉ full_text_status: none publication: Springer Proceedings in Complexity pagerange: 337-346 refereed: TRUE isbn: 9789811645129 issn: 22138684 citation: Hamza, M.F. and Soleimani, H. and Ahmed, A.A. and Ali, H. (2021) Assessment of In-Depth Transport and Retention of Zinc Oxide Nanoparticles Using a Coreflood Approach. In: UNSPECIFIED.