1. Appearance: Light yellow transparent liquid
2. Surface/Interfacial tension: At 0.1% dosage, surface/interfacial tension ≤28.0/2.0 mN/m
3. Wettability alteration performance: Changes rock surface wettability from oil-wet to water-wet
4. Temperature resistance grade: ≤150°C
5. Strong acid and high salt resistance: Stable performance without decomposition in concentrated HCl and high-salinity brine
6. Anti-emulsification performance: Good compatibility with crude oil, no stable emulsion formation