Shanghai Futian Technology has studied perfluorononenylmethylbenzene sulfonate sodium, Chinese alias OBS and alkanol fluorobenzene (CDEA), sp169, aes, K12, sodium dodecylbenzene sulfonate and other raw materials purchased according to different proportions Changes in interfacial tension, water and oil interfacial tension of the compounded system,

And a comprehensive assessment was carried out on the high temperature resistance, oxidation resistance, acid and alkali resistance of the compound system, and at the same time, the various effects of the compound system on the fracturing fluid were tested. The test results show that OBS has a strong synergistic effect with CDEA, sp169, aes, K12, and sodium dodecylbenzene sulfonate (sodium heavy alkylbenzene sulfonate), which can thereby reduce the number of watches and Interfacial tension; OBS/CDEA, the compound system of obs and sodium dodecylbenzene sulfonate shows small changes in surface and interfacial tension after heat treatment at 130°C for 6 hours, and has good heat resistance; in which 0.01% OBS The addition of 0.1�EA can reduce the surface and interfacial tension of the fracturing fluid viscosity breaker and improve the flowback rate of the fracturing fluid. This compound system can be used as a fracturing fluid drainage aid.