Crude oil demulsification refers to the separation of oil and water in an emulsified oil-water mixture through the chemical action of demulsifiers, aiming to achieve the dehydration of crude oil and meet the water content standards for crude oil transportation.

ZH-201 crude oil demulsifier exhibits excellent wetting properties and sufficient coagulation and aggregation capabilities, facilitating rapid demulsification and oil-water separation in emulsified systems. It is suitable for oil-water separation in various crude oil extraction processes, both domestically and internationally.
ZH-201 crude oil demulsifier is applicable for demulsification and dehydration of crude oil in oilfield operations, offering advantages such as clarity and fast separation. It can be used for chemical demulsification dehydration and also has the function of reducing viscosity and enhancing oil recovery. Addition in pipelines can reduce usage and lower demulsification costs.
ZH-201 crude oil demulsifier is a customized product tailored to specific production needs, requiring sampling and selection customization based on on-site conditions.

Item	Index
Appearance 20℃	Light yellow or brownish yellow liquid
Product viscosity(20℃,mpaS)	≦ 300
Density(20℃,g/cm)	0.90-1.10
Condensation point(℃)	≦ -10℃
Relative dehydration rate(%)	≧ 90

Crude Oil Demulsifier Screening Records（Project-1）

The oil sample selected is a blend of oil and water based on the liquid ratio at the front-end ternary intermediate station of the joint station. After blending, additives are introduced for indoor evaluation.

The order of the pictures from left to right is 1, 2, 3, 4, with picture 1 showing the settling process and picture 4 showing the inversion after 30 minutes of settling followed by 1 minute of inversion.

Crude Oil Demulsifier Screening Records (Project-2)

Based on the above experiments, it can be observed that in the indoor experiments, DQ241 performs slightly better than the on-site reagent, while DQ242 is comparable to the on-site reagent.