A cashew phenol polyoxyethylene polyoxypropylene ether gemini cationic surfactant, its preparation method and application

CN122080957APending Publication Date: 2026-05-26NANJING XINYI SYNTHETIC TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING XINYI SYNTHETIC TECH CO LTD
Filing Date
2026-03-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The surfactants used in existing oil and gas field development have problems such as insufficient temperature and salt resistance, significant formation damage, and poor biodegradability. Furthermore, the performance of traditional fracturing fluids is insufficient to meet the needs of high-temperature and high-salinity oil and gas reservoirs.

Method used

Using cashew phenol polyoxyethylene polyoxypropylene ether gemini cationic surfactants, through specific structural design and synthesis methods, it provides excellent temperature and salt resistance, low interfacial tension and good biodegradability, and is suitable for fracturing fluids and oil displacement systems in high-temperature and high-salinity oil and gas reservoirs.

Benefits of technology

Under high temperature and high salinity conditions, surfactants exhibit extremely low oil-water interfacial tension, low adsorption loss, and good viscosity-enhancing and drag-reducing effects, significantly improving oil recovery, simplifying oilfield chemical formulations, and being environmentally friendly.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure REF-OBJ-1772521725797-000001
    Figure REF-OBJ-1772521725797-000001
Patent Text Reader

Abstract

This invention discloses a cashew phenol polyoxyethylene polyoxypropylene ether gemini cationic surfactant, its preparation method, and its application, belonging to the field of oilfield chemical technology. The cashew phenol polyoxyethylene polyoxypropylene ether gemini cationic surfactant provided by this invention has a structure as shown in general formula (I). This gemini cationic surfactant possesses excellent temperature and salt resistance, low interfacial tension, low adsorption loss, and good biodegradability, making it particularly suitable for fracturing fluids and oil displacement systems in high-temperature, high-salinity oil and gas reservoirs.
Need to check novelty before this filing date? Find Prior Art