product name:

Hydroxyethyl erucamidopropyl dimonium chloride

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Erucamidopropyl Hydroxysultaine;

Erucylamidepropyl Hydroxysulfobetaine;

N-(3-(12(Z)-docosenamidopropyl)-N-(2-hydroxyethyl)-N,N-dimethylammonium chloride

Molecular structure:


Hydroxyethyl erucamidopropyl dimonium chloride is a biodegradable betaine-based viscoelastic surfactant for use in daily chemical and oilfield additives with a critical micelle concentration (cmc) of 1.6 x 10-4 mol/L at room temperature. When the concentration is raised to a certain concentration, the structure of the micelle changes, and gradually changes from a spherical shape to a rod shape, and the solution can form a viscoelastic structure having a three-dimensional network structure.

Hydroxyethyl erucamidopropyl dimonium chloride has a significant ability to reduce oil-water interfacial tension. The surfactant tension can reach 10-2mN/m or even 10-3mN/m under the condition of surfactant concentration ranging from 0.06wt% to 0.15wt%, salinity less than 10000mg/L and temperature below 80℃.

Hydroxyethyl erucamidopropyl dimonium chloride has a good emulsification effect on crude oil. The emulsion formed when the concentration of this product is 0.06wt% can remain stable for more than 24h, and the formation loss of formation is less than 1mg/g, which can meet the requirements for use.

The hydroxyethyl erucamidopropyl dimonium chloride indoor flooding test results show that surfactant flooding after water slug can increase oil recovery by more than 10%.

Hydroxyethyl erucamidopropyl dimonium chloride has a shear rate of 170s-1, and the viscosity of the system is still higher than 40mPa·s at 70℃. The viscosity is still higher than 25mPa·s after the temperature is 80℃ and sheared for 2h. The system has good shear resistance.

The sand carrying performance test of hydroxyethyl erucamidopropyl dimonium chloride shows that the system can achieve better sand-carrying effect when the sand ratio is 30% or even 40%.

Hydroxyethyl erucamidopropyl dimonium chloride gel breaking performance test shows that the system can break the gel in the presence of formation water or crude oil, and there is no residue after the system breaks.




Store in a dry, well-ventilated place away from direct sunlight.


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