海底管道砂粒冲蚀损耗研究
Study on Sand Erosion Wear of Subsea Pipeline
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- 引用格式:
-
何元涛,陈晶华,王凯.海底管道砂粒冲蚀损耗研究[J].天然气与石油,2017,35(1):0.doi:
He Yuantao, Chen Jinghua, Wang Kai.Study on Sand Erosion Wear of Subsea Pipeline[J].Natural Gas and Oil,2017,35(1):0.doi:
- DOI:
- 作者:
- 何元涛1 陈晶华2 王 凯3
He Yuantao, Chen Jinghua, Wang Kai
- 作者单位:
- 1.中海石油深圳分公司白云天然气作业公司,2.中海油研究总院工程研究设计院,3.北京石油化工学院机械工程学院
1.Baiyun Natural Gas Operating Company of CNOOC;2.Engineering Research & Design Institute, CNOOC Research Institute;3.School of Mechanical Engineering, Beijing Institute of Petrochemical Technology
- 关键词:
- 海底管道;多相混输;砂蚀;损耗速率;设计裕量
Subsea pipeline; Multiphase transmission; Sand erosion; Wearing rate; Design allowance
- 摘要:
- 砂粒冲蚀是一个较复杂的机械过程,常使管材遭受磨损破坏,材料在砂粒反复撞击下损失不断加重,威胁管道的流动安全，管道经冲蚀失效后可导致严重的经济损失和环境灾害。以渤海某海底油气水混输管道为实例,基于冲击破坏模型,对配产期内的砂蚀损耗进行了逐年预测，阐明了年砂蚀速率与生产期总砂蚀损耗之间的关系,并对影响速率的关键因素进行了探讨。结果表明,控制累计损耗量比阈值速度更接近工程实际情况,为工程设计中砂蚀裕量的选取提供了技术依据。
The erosion is a complex mechanical process in which material is removed from the pipeline due to repeated sand particle impacts. As a result, the pipeline can be eroded. Sand erosion is a threat to the flow assurance of subsea pipeline. Eroded pipelines may cause pipe failures which can result in financial losses and environmental issues. Taken a multiphase pipeline transporting oil, gas and water at Bohai sea as an example, the sand erosive wear depth is predicted year by year throughout the production period based on the impact damage model. The relation of annual sand erosion rate and total sand erosion depth is clarified, and the key factors affecting the rate of sand erosion are discussed. The results show that the control of the accumulative loss is closer to the actual situation of the project than that of the threshold speed, which provides a technical basis for the sand erosion allowance in engineering design.
