石油学报 ›› 2006, Vol. 27 ›› Issue (4): 125-129.DOI: 10.7623/syxb200604029

• 石油工程 • 上一篇    下一篇

大庆原油蜡沉积规律研究

黄启玉1, 张劲军1, 高学峰2, 张祖华3   

  1. 1. 中国石油大学石油天然气工程学院, 北京, 102249;
    2. 中国石油管道公司长庆输油分公司, 宁夏银川, 750006;
    3. 中国石油管道公司大连输油分公司, 辽宁大连, 116601
  • 收稿日期:2005-09-17 修回日期:2005-12-07 出版日期:2006-07-25 发布日期:2010-05-21
  • 作者简介:黄启玉,男,1969年9月生,2000年获石油大学(北京)博士学位,现为中国石油大学(北京)油气储运工程系副教授,研究方向为原油流变性及原油蜡沉积.E-mail:ppd@cup.edu.cn
  • 基金资助:
    中国石油天然气股份有限公司科技攻关项目"管输大庆原油结蜡规律研究"(2000-1)的部分成果.

Study on wax deposition of Daqing crude oil

Huang Qiyu1, Zhang Jinjun1, Gao Xuefeng2, Zhang Zuhua3   

  1. 1. Faculty of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;
    2. Changqing Oil Transportation Company, CNPC Pipeline, Yinchuan 750006, China;
    3. Dalian Oil Transportation Company, CNPC Pipeline, Dalian 116601, China
  • Received:2005-09-17 Revised:2005-12-07 Online:2006-07-25 Published:2010-05-21

摘要: 在理论分析及室内试验的基础上,系统研究了油温、流速、管壁处温度梯度等参数对大庆原油蜡沉积的影响.在原油与管壁温差相同时,不同温度段蜡沉积速率并不相同,存在蜡沉积高峰区.在壁温相同时,随油温升高,蜡沉积速率逐渐增加.在油温、壁温相同的条件下,随流速增加,蜡沉积速率下降.建立了大庆原油蜡沉积模型,并利用该模型预测了铁岭-秦皇岛输油管线不同季节、不同时间沿线蜡沉积分布.铁-秦线冬季存在蜡沉积高峰区;春、秋季出站时蜡沉积最严重,下一站进站时蜡沉积最轻;夏季蜡沉积速率更小,且沿线变化不大.

关键词: 大庆原油, 蜡沉积, 输油管道, 蜡沉积速率, 数学模型

Abstract: A wax deposition model of Daqing crude oil was developed on the basis of theoretical analysis and laboratory experiment.The effects of oil temperature,flow velocity and temperature gradient of pipeline wall on wax deposition of Daqing oil were studied.When the temperature difference between crude oil and wall of pipeline is same,the wax deposition rate is different.There is wax deposition peak along a pipeline.At the same temperature of pipeline wall,the wax deposition rate increases with increase of oil temperature.At the same oil and wall temperature,the wax deposition rate increases with increase of flow velocity.The wax deposition model was used to predict wax deposition profile along Tieling-Qinhuangdao pipeline at different seasons.The results show that there is an area where wax deposition rate is serious between pump stations in winter.In autumn and spring,the wax deposition rate is the highest in outlets of pump stations.In summer,the variation of wax deposition rate is little along the Tieling-Qinhuangdao pipeline.

Key words: Daqing crude oil, wax deposition, oil transportation pipeline, wax deposition rate, mathematical model

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