Corrosion failure cause analysis and evaluation of corrosion inhibitors of Ma Huining oil pipeline

被引：21
|
作者：
Xiao, Renjie [1 ]
Xiao, Guoqing [1 ]
Huang, Biao [1 ]
Feng, Junhao [2 ]
Wang, Qionghui [1 ]
机构：
[1] Southwest Petr Univ, Coll Chem & Chem Engn, Chengdu 610500, Peoples R China
[2] Southwest Oil & Gas Field Branch Co, Sichuan Jiayuan Gas Co Ltd, Chengdu 610213, Peoples R China
来源：
ENGINEERING FAILURE ANALYSIS | 2016年 / 68卷
基金：
中国国家自然科学基金;
关键词：
Oxygen corrosion; SRB; Oil pipeline; Failure analysis; Inhibitor; ENVIRONMENTS; BEHAVIOR; STEEL;
D O I：
10.1016/j.engfailanal.2016.05.029
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The corrosion failure cause analysis of Ma Huining x 52 oil pipeline has been investigated in the present study. The morphology and composition of the corrosion products are characterized by scanning electron microscopy, energy-dispersive spectroscopy and water quality analysis. The static and dynamic weight loss experiment is conducted to estimate corrosion rate of x52 pipeline steel with different inhibitors. With the addition of electrochemical impedance test and polarization curve method, the inhibitors aimed at corrosion of Ma Huining oil pipeline have been evaluated. Results show that corrosion of x52 pipeline steel is mainly induced by oxygen corrosion and SRB. Non-metallic inclusions are MnS and Al2O3. The inhibitor made up of oleic acid imidazoline amide and sodium sulfite at 80 ppm was optimal for corrosion of Ma Huining oil pipeline. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：113 / 121
页数：9
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