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题名: Experimental testing and numerical simulation to analyze the corrosion failures of single well pipelines in Tahe oilfield
作者: Li, Ping;  Zhao, Yang;  Liu, Bin;  Zeng, Guanxin;  Zhang, Tao;  Xu, Dake;  Gu, Hong;  Gu, Tingyue;  Wang, Fuhui
发表日期: 2017-10-1
摘要: Frequent corrosion failures occurred on single well gathering lines in a section of the Tahe oil-field. The corrosion failures were investigated by means of experimental lab testing and numerical simulation. The electrochemical test results showed that the corrosion of the pipelines were controlled by two different mechanisms, which were influenced mainly by excessive dissolved oxygen (DO), higher temperature, lowered flow velocity and increased water cut. One mechanism was influenced by the excessive DO concentration and the higher temperature of injection water near the pipe entrance region. The corrosion rate noticeably increased at the entrance at a high temperature until DO was exhausted. The other mechanism resulted from the oil-water separation due to decreased flow velocity at the terminal climbing pipe sections. The change in flow led to the suspended particles being deposited, which caused under-deposit corrosion. The statistical analysis of the field corrosion data supported the two corrosion mechanisms.
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
Li, Ping,Zhao, Yang,Liu, Bin,et al. Experimental Testing And Numerical Simulation To Analyze The Corrosion Failures Of Single Well Pipelines In Tahe Oilfield[J]. Pergamon-elsevier Science Ltd,2017,80:112-122.

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