The influence of water droplet packing on crude oil emulsion.
Journal
The European physical journal. E, Soft matter
ISSN: 1292-895X
Titre abrégé: Eur Phys J E Soft Matter
Pays: France
ID NLM: 101126530
Informations de publication
Date de publication:
14 Jul 2023
14 Jul 2023
Historique:
received:
19
01
2023
accepted:
15
06
2023
medline:
17
7
2023
pubmed:
14
7
2023
entrez:
14
7
2023
Statut:
epublish
Résumé
To assure a smooth and cost-efficient flow of crude oil emulsion from wells to a production facility, the oil industry relies heavily on the prediction of viscosity in pipe. The physical expression of this viscosity depends on a subjective estimate of a maximum packing volume fraction (compacity), ranging between 58 and 74 vol%. This inaccurate practice can lead to catastrophic loss of pump efficiency. Two new concepts were defined to describe the emulsion: its compacity; and the occupancy of water droplets at the oil-water interface. This development leads to a better understanding of the formation and disappearance of a suspension, and can assist in building a reliable phenomenological model of the sedimentation and coalescence of an emulsion. Theoretical and experimental approaches were conducted to investigate the packing of water droplets in emulsions. A 3D packing model was developed to explain the observations made during emulsification experiments. It was found that below a water volume fraction of 34 vol%, water droplets settle, under the effect of gravity, in a loose-packed zone; and then sediment in a dense-packed zone (DPZ). The DPZ exists between a water volume fraction of 34 vol% and 60 vol%. The maximum compacity is the upper limit of this zone; and has a value of 60.46%. Knowing this objective value, other parameters affecting the viscosity can be better studied.
Identifiants
pubmed: 37450063
doi: 10.1140/epje/s10189-023-00311-9
pii: 10.1140/epje/s10189-023-00311-9
doi:
Substances chimiques
Petroleum
0
Emulsions
0
Water
059QF0KO0R
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
53Informations de copyright
© 2023. The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature.
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