Evaluation of the effect of asphalt deposition inhibitor for crude oil

Abstract

Abstract In this paper, the effect of asphalt deposition inhibitors coal tar, bromohexadecylpyridine and sodium oleate on the viscosity reduction and asphaltene reduction of crude oil was investigated. The results show that coal tar has a better inhibitory effect on asphaltenes in crude oil. The asphaltene reduction effect is the best when the addition amount is 0.5%. Compared with the blank, the asphaltene content is reduced from 24.47% to 9.42%. The cationic surfactant bromohexadecylpyridine and coal tar have a good synergistic effect, and the asphaltene content is reduced by 1.74% compared with the single addition of 0.5% coal tar.