Numerical Study on the Effect of Wax Deposition on the Restart Process of a Waxy Crude Oil Pipeline

A new model for wax deposition is established based on the loop tests data of 9 typical crude oils in conjunction with the concept of the effective wax precipitation which occurs in the heat boundary layer in the pipeline. The thickness of the wax deposition of a waxy oil pipeline is predicted by th...

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Main Author: Qing Miao
Format: Article
Language:English
Published: SAGE Publishing 2012-01-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1155/2012/973652
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author Qing Miao
author_facet Qing Miao
author_sort Qing Miao
collection DOAJ
description A new model for wax deposition is established based on the loop tests data of 9 typical crude oils in conjunction with the concept of the effective wax precipitation which occurs in the heat boundary layer in the pipeline. The thickness of the wax deposition of a waxy oil pipeline is predicted by the established model, and the results of the model agree well with the field data. Subsequently, the models for the shutdown and restart processes of a waxy crude oil pipeline are established. Then the restart process of a wax crude oil pipeline is investigated numerically, the temperature drop during the shutdown process and the transient inlet pressure are presented, and the effect of the wax deposition on the safety of the restart process is clarified.
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spelling doaj.art-db0526d654e64a97aec84e3a0c0641632022-12-21T23:34:22ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322012-01-01410.1155/2012/97365210.1155_2012/973652Numerical Study on the Effect of Wax Deposition on the Restart Process of a Waxy Crude Oil PipelineQing Miao0 National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing 102249, ChinaA new model for wax deposition is established based on the loop tests data of 9 typical crude oils in conjunction with the concept of the effective wax precipitation which occurs in the heat boundary layer in the pipeline. The thickness of the wax deposition of a waxy oil pipeline is predicted by the established model, and the results of the model agree well with the field data. Subsequently, the models for the shutdown and restart processes of a waxy crude oil pipeline are established. Then the restart process of a wax crude oil pipeline is investigated numerically, the temperature drop during the shutdown process and the transient inlet pressure are presented, and the effect of the wax deposition on the safety of the restart process is clarified.https://doi.org/10.1155/2012/973652
spellingShingle Qing Miao
Numerical Study on the Effect of Wax Deposition on the Restart Process of a Waxy Crude Oil Pipeline
Advances in Mechanical Engineering
title Numerical Study on the Effect of Wax Deposition on the Restart Process of a Waxy Crude Oil Pipeline
title_full Numerical Study on the Effect of Wax Deposition on the Restart Process of a Waxy Crude Oil Pipeline
title_fullStr Numerical Study on the Effect of Wax Deposition on the Restart Process of a Waxy Crude Oil Pipeline
title_full_unstemmed Numerical Study on the Effect of Wax Deposition on the Restart Process of a Waxy Crude Oil Pipeline
title_short Numerical Study on the Effect of Wax Deposition on the Restart Process of a Waxy Crude Oil Pipeline
title_sort numerical study on the effect of wax deposition on the restart process of a waxy crude oil pipeline
url https://doi.org/10.1155/2012/973652
work_keys_str_mv AT qingmiao numericalstudyontheeffectofwaxdepositionontherestartprocessofawaxycrudeoilpipeline