This paper reviews the application of petroleumsulfonate and the use of lignosulfonate in oil recovery enhancement. The modification of straw based alkali lignin is also briefly discussed.

• 论述了石油磺酸盐和木素磺酸盐在提高石油回收中的应用，并根据我国实情，提出了草类碱木素磺化改性的新方法。