Effect of Fumed Silica Particles on Water-in-Crude Oil Emulsion: Emulsion Stability, Interfacial Properties, and Contribution of Crude Oil Fractions
Abstract
The effect of fumed silica particles on water-in-crude oil emulsions was analyzed by stability tests, interfacial tension measurements, dilatational rheology of the interface, rheology of the particles dispersions, and Cryo-SEM analysis. The crude oil studied is a paraffinic one and was separated by distillation in three fractions containing mainly saturate, aromatic, and resin compounds. The stability of emulsions formed from these oil fractions was also studied with or without silica particles. Experiments without particles performed with oil or its fractions underline that the most stable emulsion is formed with the heavy fraction which corresponds to the highest elastic modulus of the interface. Different mechanisms of emulsion stability in the presence of particles were discussed according to the particle wettability. Whatever the oil phase composition, it is obviously noticed that hydrophilic particles destabilize water-in-oil emulsions, whereas hydrophobic particles stabilize them. For hydrophilic particles, the ″solid-like″ behavior of the interfacial film revealed by the high value of the elastic modulus, IFT measurements and the observations by Cryo-SEM, supports the presence of A200 particles at the oil/water interface. The highest stability of the emulsions in the presence of hydrophobic particles results from the addition of several effects: the tendency to form a structured organization in the oil continuous phase and the influence of the attached particles at t…
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Aerosil R974 is a moderate hydrophobic type which tends to stabilize water-in-oil emulsions.
“Aerosil R974, is a moderate hydrophobic type which tend to stabilize water-in-oil emulsions (Perino et al., 2013).”
From Demulsifier Selection Guideline for Destabilizing Water-in-Oil Emulsion for both non-EOR and EOR Application (2023) · cites this paper as Perino et al., 2013
The higher emulsion stability observed in the presence of hydrophobic particles results from the tendency to form a structure in the oil dispersed phase and the influence of the attached particles at the interface.
“The higher emulsion stability observed in the presence of hydrophobic particles results from the addition of severel effects: the tendency to form a structure in the oil dispersed phase and the influence of the attached particles at the interface (Perino et al., 2013).”
From Demulsifier Selection Guideline for Destabilizing Water-in-Oil Emulsion for both non-EOR and EOR Application (2023) · cites this paper as Perino et al., 2013
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- Authors
- Perino, A., Noïk, C., & Dalmazzone, C.
- Affiliations
- IFP Énergies nouvelles (FR)
- IFP Energies nouvelles, 1&4 Avenue de Bois-Préau, 92852 Rueil-Malmaison Cedex, France
- Venue
- Energy & Fuels
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-04-23
- Volume
- 27
- Issue
- 5
- Pages
- 2399-2412
- ISSN
- 0887-0624 (ISSN-L)
- 1520-5029
- OpenAlex
- W2323033468
- Cited by
- 36
- References
- 50
- Citations by year
- 2025: 1 · 2024: 1 · 2023: 2 · 2022: 4 · 2021: 4 · 2020: 2 · 2019: 3 · 2018: 8 · 2017: 3 · 2016: 2 · 2015: 4 · 2014: 2
- FWCI
- 1.20
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Energy & Fuels (publishedVersion)
- Funders
- IFP Energies Nouvelles
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Pickering emulsions and particle stabilization
- Physical Sciences › Chemistry › Analytical Chemistry › Petroleum Processing and Analysis
- Physical Sciences › Engineering › Ocean Engineering › Enhanced Oil Recovery Techniques
- Keywords
- water-in-oil emulsions, crude oil, emulsion stability, interfacial tension, interfacial viscoelasticity, petroleum fractions, particle wettability, hydrophilic particles, hydrophobic particles, interfacial films, waxy crude oil, oil-water interface
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