Natural carboxylic acid samples were extracted from Liaohe and Sudan crude oil respectively, and their effects on the stability of Tahe asphaltene model oil emulsion were investigated.

• 从辽河、苏丹原油中分离出天然羧酸，考察原油中天然羧酸对塔河沥青质模型油乳状液稳定性的影响。