Temperature-resistant foam-stabilizing type low interfacial tension foaming agent and preparation method thereof

The invention discloses a temperature-resistant foam-stabilizing type low interfacial tension foaming agent and a preparation method thereof. The temperature-resistant foam-stabilizing type low interfacial tension foaming agent comprises the following raw material components by mass percent: 0.18-0.25% of an anionic surfactant, 0.05-0.1% of an amphoteric surfactant, 0.08-0.15% of a nonionic surfactant and 99.2-99.69% of mineralized water, wherein the anionic surfactant is one of fatty acid polyoxyethylene ether sodium sulfate and disodium laureth sulfosuccinate; the amphoteric surfactant is one of erucamidopropyl sultaine and cocoamidopropyl betaine; the nonionic surfactant is one of coconutt diethanol amide and polyoxyethylene ether; the mineralized water is a mixed water solution of sodium chloride, sodium sulfate, sodium hydrogen carbonate, anhydrous calcium chloride and magnesium chloride hexahydrate. The temperature-resistant foam-stabilizing type low interfacial tension foaming agent, disclosed by the i