Numerical simulation of a buried hot crude oil pipeline during shutdown

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• 作者：Cheng Xu (1)
  Bo Yu (1)
  Zhengwei Zhang (2)
  Jinjun Zhang (1)
  Jinjia Wei (3)
  Shuyu Sun (4)
  
• 关键词：Moving boundary ; stagnation point ; equivalent thermal conductivity ; thermal influence region ; unstructured grid
• 刊名：Petroleum Science
• 出版年：2010
• 出版时间：March 2010
• 年：2010
• 卷：7
• 期：1
• 页码：73-82
• 全文大小：1723KB
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  4. Li W and Zhang J J. Studies of temperature drop of buried waxy crude pipelines in shutdown. Oil & Gas Storage and Transportation. 2004. 23(1): 4鈥? (in Chinese)
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  13. Zhang Z W, Ling X, Yu B, et al. Numerical simulation of a buried hot crude oil pipeline under normal operation. Journal of Engineering Thermophysics. 2008. 29(8): 1389鈥?392 (in Chinese)
  14. Zhao H J, Zhang Q S, Zhang G Z, et al. Numerical study of the soil temperature field after shutdown of a hot oil pipeline. Oil & Gas Storage and Transportation. 2008. 27(1): 14鈥?7 (in Chinese)
  15. 袗褌邪锌泻懈薪 袙 袦. Thermodynamic and Hydrodynamic Calculations Pipelines of Crude Oil and Product Oil. Translated by Luo T H. Beijing: Petroleum Industry Press. 1986 (in Chinese)
  16. 袩褍斜懈薪 袙 袝. Pipeline Transportation for High Pour Point and Viscou Crude Oil and Oil Products. Translated by Chen Z Z. Beijing: Petroleum Industry Press. 1987 (in Chinese)
  
• 作者单位：Cheng Xu (1)
  Bo Yu (1)
  Zhengwei Zhang (2)
  Jinjun Zhang (1)
  Jinjia Wei (3)
  Shuyu Sun (4)
  
  1. Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing, 102249, China
  2. Zhejiang Department Preparatory Team, PetroChina West East Gas Pipeline Company, Hangzhou, Zhejiang, 310000, China
  3. State Key Laboratory of Multiphase Flow in Power Engineering, Xi鈥檃n Jiaotong University, Xi鈥檃n, Shaanxi, 710049, China
  4. Department of Mathematical Sciences, Clemson University, Clemson, SC, 29634-0975, USA
  
• ISSN：1995-8226

文摘

In this paper a mathematical model is built for a buried hot crude oil pipeline during shutdown, and an unstructured grid and polar coordinate grid are respectively applied to generating grids for the soil region and the three layers in the pipe (wax layer, pipe wall, and corrosion-inhibiting coating). The governing equations are discretized using the finite volume method. The variations in temperatures of static oil and soil were investigated during pipeline shutdown in both summer and winter, in which some important parameters of the soil and crude oils of a Northeast pipeline are employed.