Novel molecular insight into the discrepant distributions for ionic surfactants in light oil/water and heavy oil/water systems

[Display omitted] •Discrepant distributions of SDS in two oil/water systems are elaborated by MD simulation.•Heavy oil phase provides the more suitable environment for SDS molecule than water phase.•SDS-Water-Asphaltene (S-W-A) ternary structure is fabricated via the hydrogen bonds.•S-W-A structure...

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