高校化学工程学报2016，Vol.30Issue(5)：1014-1020,7.DOI:10.3969/j.issn.1003-9015.2016.05.005
临邑-濮阳原油管道结蜡层的组成与流变性研究
Composition and Rheology of Wax Deposits in Linyi-Puyang Crude Oil Pipelines
摘要
Abstract
The composition and rheological properties of crude oil in Linyi-Puyang pipeline and two wax deposits in the pipelines of Linyi-Zhaozhaizi (wax deposit 1) and Zhaozhaizi-Shenxian (wax deposit 2) were characterized by SARA, DSC, rheological measurements, HTGC, macroscopic and microscopic observation. The results show that pour point, WAT, wax content, saturation and asphaltene content, viscosity, yield and heavy n-alkane content of the wax deposits increase significantly when compared with crude oil, but light n-alkane content of the wax deposits decreases. The wax crystal of the crude oil is small needle-like structure, while the crystal of the wax deposit has spherical and large needle-like structures. WAT, asphaltene content, viscosity, yield, heavy n-alkane of wax deposit 1 are higher than that of deposit 2, but the light n-alkane of wax deposit 1 are lower than that of wax deposit 2. The wax deposit 1 contains more and larger plate-like/needle-like wax crystals, which are also more compact than that of wax deposit 2. Therefore, pigs are easier to be stucked in the pipeline of Linyi-Zhaozhaizi section.关键词
原油管道/结蜡层/组成/碳数分布/流变性/宏观和微观结构Key words
crude oil pipeline/wax deposit/composition/carbon number distribution/rheology分类
能源科技引用本文复制引用
王国涛,程梁,李传宪,杨飞,张莹,蔡金洋..临邑-濮阳原油管道结蜡层的组成与流变性研究[J].高校化学工程学报,2016,30(5):1014-1020,7.基金项目
国家自然科学基金(51204202)；山东省自然科学基金(ZR2012EEQ002)；中央高校基本科研业务费专项资金(14CX02210A，15CX06072A)。 （51204202）
