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[en] Highlights: • Various phenomena affecting surfactant inhibition efficiency in water-oil-steel pipe were identified. • The identified phenomena were categorized into three major domains and associated models. • Sub-models were introduced for partitioning, micellization, and effective adsorption on metal. • Integrated corrosion inhibition model was developed to evaluate inhibition efficiency. - Abstract: One multiphysics model, integrated corrosion inhibition (ICI) model, has been theoretically introduced and experimentally validated for the integrated evaluation of water-oil partitioning, aggregation, adsorption/desorption, and corrosion inhibition of mixed surfactant inhibitors in salt-containing water-oil-steel pipe (WOS) environments. The ICI model is based on three major sub-models which consider water-oil surfactant partitioning, micellization, effective adsorption/desorption on substrate, surfactant type, surfactant-solvent interactions, surfactant-counterion pair, and lateral surfactant interactions etc., and intended to serve as a basic framework in the design, selection, optimization, and utilization of various pure and mixed surfactant inhibitors in WOS environments.