In this paper, the preparation process of petroleum sulfonates was studied making of Daqing distillate oil as feedstock and oleum as sulfonated agent .

• 研究了以大庆馏余油为原料,发烟硫酸为磺化剂,制备石油磺酸盐的合成工艺,并进一步研究了以石油磺酸盐为主剂的复配体系在三次采油中的应用。