Alkali-free binary flooding surfactant as well as preparation and application thereof

• Main Authors: JIA MIN, SUN JIANFENG, LIU YAN, LI JUN, LIU QIANG, WANG HAOYU, LI NAN, CUI XIAODONG, ZHANG YI, CAO GUANGQIANG, GUO DONGHONG, YANG XIAOPENG
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

The invention discloses an alkali-free binary flooding surfactant as well as preparation and application thereof. The invention discloses a mahogany petroleum sulfonate surfactant. The surfactant is sulfur trioxide of a mixture of reduced second distillate oil, reduced fifth distillate oil, vacuum residue and heavy alkyl benzene. Kettle sulfonation can be adopted in the preparation process of the alkali-free binary flooding surfactant, so that the equipment investment is low; the raw materials are reliable in source and low in price. 本发明公开一种无碱二元驱表面活性剂及其制备和应用。本发明公开的石油磺酸盐表面活性剂，所述表面活性剂为减二馏分油、减五馏分油、减压渣油以及重烷基苯的混合物的三氧化硫磺化物。本发明的无碱二元驱表面活性剂制备工艺可以采用釜式磺化，设备投资少；原料来源可靠，价格低廉。