Eupatorium amidopropyl betaine STD EAPB40

Chemical composition

Eupatorium amidopropyl betaine is chemically synthesized from imported high-purity refined raw materials. It is also known as: Eupatorium amidopropyl betaine, abbreviated as Eupatorium betaine, Eupatorium amidopropyl betaine, Eupatorium propyl betaine. This product is also a self-steering acid main agent for clean fracturing acidification, a variable viscosity diversion acid main agent, and a clean fracturing fluid main agent. It is a high-temperature resistant viscoelastic surfactant that can withstand temperatures of 110 degrees Celsius. If it is compounded with other products, the temperature resistance can be further improved. It has excellent performance in oil field drilling, acidizing, fracturing, oil recovery and other fields.

Physical and chemical indicators

Performance and use

1. STD EAPB40 has the following characteristics:

1) It has good compatibility with anionic, cationic, nonionic and amphoteric surfactants.

2) It has mild performance, good foaming and foam stability, and can reduce the irritation of anionic surfactants.

3) It has good thickening properties when compounded with anionic surfactants.

4) It has good antistatic, antibacterial, biodegradable and very low biological toxicity.

5) It has strong salt and hard water resistance.

6) It is used as the main agent, thickener, viscoelastic surfactant, oil displacement agent in oil and gas fields, and as thickener, conditioner, wetting agent, antibacterial agent, antistatic agent, etc. in daily chemical or other industrial fields.

2. STD EAPB40 is used as the main agent, thickener, viscoelastic surfactant, oil displacement agent, etc. in oil and gas fields, and has the following properties and uses:

1) The carbon number of the hydrophobic group of STD EAPB40 erucic acid amide propyl betaine is 25. and it contains double bonds, amide bonds and other groups that enhance solubility. The critical micelle concentration (cmc) is 1.02×10-5 mol/L, and the corresponding surface tension γcmc is 29.60 mN/m. The compound system can achieve an ultra-low interfacial tension of 10-4 to 10-3 mN/m with crude oil under various reservoir conditions, and the interfacial performance is excellent.

2) STD EAPB40 erucic acid amide propyl betaine in salt solutions or acid solutions with different pH values, with the continuous decrease of hydrochloric acid concentration and the increase of pH value, the viscosity of the system increases rapidly, forming viscoelastic solutions or gels of different strengths. This product is one of the ideal surfactants for clean fracturing fluids, self-steering acids, and viscoelastic surfactants (VES).

3) STD EAPB40 erucic acid amide propyl betaine is used in viscoelastic surfactant self-steering acid systems, playing the role of changing viscosity, self-steering acid, and slowing acid. It is used in heterogeneous reservoir diversion acidification, and the acid system automatically becomes viscous with the acid-rock reaction, which has the effect of diversion acidification and will not cause secondary damage to the formation.

4) STD EAPB40 erucic acid amidopropyl betaine is used in viscoelastic surfactant (VES) system, which has the advantages of easy preparation and construction, high viscosity, high elasticity, automatic steering, low friction, reduced acid loss, strong stability (salt resistance), easy flowback without residue, and no damage to the formation.

5) The viscoelastic system of STD EAPB40 erucic acid amidopropyl betaine has a temperature resistance of 90℃～110℃. If it is compounded with other surfactants, the temperature resistance can reach 130℃. It can also be used with WinsonoTM OAB40 oleic acid amidopropyl betaine to reduce costs. This product is an ideal viscoelastic surfactant for heterogeneous multilayer sandstone reservoirs and medium and low permeability reservoirs in medium and high temperature oil and gas reservoirs-increasing and transformation operations.

6) STD EAPB40 erucic acid amidopropyl betaine can be used in oil and gas field drilling, acidizing, fracturing, oil recovery and other fields, and has achieved good results in many oil fields at home and abroad.

Usage and dosage

Add according to the application formula. Reference amount: 1.0%-5.0%.

Packaging and storage

200kg/plastic barrel. Store in a cool and dry place, protect from freezing and sunlight. Shelf life is one year (0～35℃)