结蜡厚度对含蜡原油管道蜡沉积速率预测的影响  

Effect of Wax Deposit Thickness on Prediction of Wax Deposition Rate in Waxy Crude Oil Pipelines

作　　者：张莹 

机构地区：[1]中国石油大学(北京)油气管道输送安全国家工程实验室,北京102249

出　　处：《辽宁化工》2017年第4期377-380,共4页Liaoning Chemical Industry

摘　　要：以铁岭-秦皇岛管道冬季输送大庆原油为算例,对考虑和不考虑已有沉积物对后续沉积速率影响这两种算法通过MATLAB软件编程进行对比。结果表明,两种算法蜡沉积速率的差异与相对结蜡厚度成线性关系,相对结蜡厚度越大,差异越大。通过进一步计算分析,明确了造成两种算法差异的主要原因是动力参数的变化。Taking Tieling-Qinhuangdao pipeline for transporting Daqing crude oil in winter for an example,based on the mechanism of waxy crude wax deposition and wax deposition rate model,two kinds of algorithms： considering and without considering the impact of wax deposits on subsequent wax deposition rate,were developed; a comparison was carried out for calculating the wax deposition rate by using Matlab language. The results show that,in the pipeline transportation of waxy crude oil,the difference between wax deposition rates calculated by using two algorithms has a linear relationship with wax deposit thickness,the greater the relative wax deposit thickness,the greater the difference is. Furthermore,the computing results show that,the main factor to cause the difference of these two algorithms is the variation of the dynamic parameter.

关 键 词：含蜡原油 结蜡厚度 蜡沉积速率 

分 类 号：TE832[石油与天然气工程—油气储运工程]