化工进展 ›› 2021, Vol. 40 ›› Issue (7): 3679-3692.doi: 10.16085/j.issn.1000-6613.2020-1657

• 能源加工与技术 • 上一篇    下一篇

原油管道蜡沉积物径向性质研究进展

范开峰1,2(), 李思1,2(), 黄启玉3, 万宇飞4   

  1. 1.辽宁石油化工大学石油天然气工程学院,辽宁 抚顺 113001
    2.中国石化中原油田分公司石油工程技术研究院,河南 濮阳 457001
    3.中国石油大学(北京)机械与储运工程学院,北京 102249
    4.中海石油(中国)天津分公司,天津 300459
  • 收稿日期:2020-08-19 修回日期:2020-11-16 出版日期:2021-07-06 发布日期:2020-12-03
  • 通讯作者: 李思 E-mail:fkf5266@163.com;hellolisi@sina.com
  • 作者简介:范开峰(1987—),男,博士,副教授,研究方向为原油管道蜡沉积机理及防治技术。E-mail:fkf5266@163.com
  • 基金资助:
    国家自然科学基金(51904147);辽宁省教育厅科学研究经费项目(L2020035);辽宁省自然科学基金计划重点项目博士启动基金(20180540044);中国博士后科学基金面上项目(2019M660176)

Research progress on radial properties of wax deposits in crude oil pipelines

FAN Kaifeng1,2(), LI Si1,2(), HUANG Qiyu3, WAN Yufei4   

  1. 1.College of Petroleum Engineering, Liaoning Petrochemical University, Fushun 113001, Liaoning, China
    2.Institute of Petroleum Engineering Technology, Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, Henan, China
    3.College of Mechanical and Transportation Engineering, China University of Petroleum (Beijing), Beijing 102249, China
    4.Tianjin Branch, China National Offshore Oil Corporation Limited, Tianjin 300459, China
  • Received:2020-08-19 Revised:2020-11-16 Online:2021-07-06 Published:2020-12-03
  • Contact: LI Si E-mail:fkf5266@163.com;hellolisi@sina.com

摘要:

蜡沉积物性质对原油管道清管方案的制定有重要影响,是原油流动保障领域的研究热点之一。本文回顾了近年来关于管道蜡沉积物径向特性的研究成果,对当前实验研究手段和方法进行了系统的对比分析;从蜡沉积物组成、析蜡特性、宏观形态与微观结构、力学特性四个方面深入阐述了对管道蜡沉积物径向性质的认识与结论,分析了其内在影响因素和作用机理;评述了蜡分子扩散系数及径向含蜡量分布预测模型的理论基础和存在缺陷;提出了未来的研究方向:加快研发更加精确的机械取样装置,深入研究沉积物微观结构特性对宏观流变性的影响机理并建立二者之间的定量关系,建立考虑多孔网状结构中蜡分子扩散动力学的蜡沉积物径向性质预测模型。

关键词: 石油, 扩散, 结晶, 沉积物, 流变学, 径向性质, 老化

Abstract:

The properties of wax deposits significantly impact crude oil pipeline pigging operation, and this topic has become a hotspot in flow assurance research. This paper reviews the recent research progress on the radial properties of wax deposits in crude oil pipelines and compares the advantages and disadvantages of the current experimental methods. The understanding and conclusions of the radial properties of wax deposits were expounded from four aspects: composition, wax precipitation characteristics, macroscopic appearance and microstructure, as well as mechanical properties. Meanwhile, the intrinsic influencing factors and acting mechanism were analyzed. The theoretical foundations and shortcomings of wax molecular diffusion coefficient and radial wax content distribution models were evaluated. Finally, the future research directions were presented: mechanical sampling device with higher accuracy needs to be developed, the influencing mechanism and quantitative relation between the macroscopic rheological properties of wax deposits and their microstructure characteristics need to be revealed, and predictive models of radial properties of wax deposits considering the diffusion kinetics of wax molecules in the porous media need to be established.

Key words: petroleum, diffusion, crystallization, deposition, rheology, radial property, aging

中图分类号: 

  • TE832