环烷酸对高沥青质含量稠油乳状液稳定性的影响

以高沥青质塔河稠油为研究对象，从中分离出沥青质，配制成模型油乳状液；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。 结果表明，天然羧酸可以起到类似于胶质的作用，通过对沥青质的分散作用，降低沥青质模型油乳状液的稳定性。 有机羧酸和烷基芳磺酸可以起到与天然羧酸类似的作用，而且烷基芳磺酸降低模型油乳状液稳定性的能力更强。

THE EFFECT OF NAPHTHENIC ACID ON THE STABILITY OF HIGH ASPHALTENE CONTAINING VISCOUS CRUDE OIL EMULSION

The research was focused on the Tahe viscous crude oil with high asphaltene content, asphaltene sample was separated from Tahe viscous crude oil to form an asphaltene model oil emulsion. 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. Results showed that the natural carboxylic acid exhibited the similar function as resin, which could reduce the stability of asphaltene model oil emulsion by dispersing asphaltene particles into oil phase. Just like natural carboxylic acid, the organic carboxylic acid and alkyl benzene sulfonic acid exhibited the same function of dispersing asphaltene particles into oil phase, yet the later even had more significant effect on reducing the stability of model oil emulsion.