Product Introduction
| Product name | Erucamide propyl betaine |
| Category | Amphoteric surfactants |
| Alias | EAB |
| CAS# | 591089-19-2 |
| Molecular formula | RCONH(CH2)3N+ (CH3)2CH2COO |
| Physical and Chemical Properties | Zwitterionic surfactant has excellent solubility and compatibility, and has good compatibility with anionic, cationic, nonionic and Zwitterionic surfactants. can form micelles in salt solution and acid solution, can be used as viscoelastic surfactant for fracturing acidizing, can be used as acidizing diverting agent and acidizing retarder, has the advantages of automatic flowback, automatic diversion, filtration loss reduction and the like, Good results have been obtained in acidizing of oil and gas fields |
| Use | EAB-40 has good compatibility with anionic, cationic, nonionic and Zwitterionic surfactants, mild performance, good foaming and foam stability. Eab-40 can be used as main agent, thickener, viscoelastic surfactant and oil displacement agent of self-diverting acid in oil and gas field Used as thickener, conditioner, wetting agent in daily chemical or other industrial fields. lEAB-40 hydrophobic carbon number is 25, and contains double bond, amide bond and other groups to improve solubility, critical micelle concentration (cmc) is 1.02×10-5 mol/L, the corresponding surface tension γcmc is 29.60 mN/m, the complex system can reach a variety of reservoir conditions of crude oil to 10-4~10-3mN/m order of magnitude of ultra-low interfacial tension.EAB-40 in different pH value of salt solution or acid solution, with the continuous reduction of hydrochloric acid concentration and the increase of pH value, the viscosity of the system increases rapidly, forming different strength of viscoelastic solution or gel, this product is the current clean fracturing fluid, self-diverting acid, viscoelastic surfactant (VES) ideal surfactant.EAB-40 is used in viscoelastic surfactant self-diverting acid system, play a variable viscosity acid, self-diverting acid and retarded acid. When it is applied in the diversions acidizing of heterogeneous reservoir, the acid fluid system will automatically become viscous with the acid-rock reaction, which has the function of diversions acidizing and will not cause secondary damage to the formation. EAB-40 is used in viscoelastic surfactant (VES) system, which has the advantages of easy preparation and construction, high viscosity, high elasticity, automatic steering, low friction resistance, reducing acid fluid filtration and strong stability (salt resistance). The viscoelastic system of EAB-40 can withstand temperature of 90℃~110℃. If it is compounded with other surfactants, the temperature can reach 130℃. This product is an ideal viscoelastic surfactant for heterogeneous multi-layer sandstone reservoirs of medium and high temperature oil and gas reservoirs and medium and low permeability reservoirs-stimulation and reconstruction operations. |
