Study on the Mechanism of Corrosion in the Gas Injection/Withdrawal Pipeline of Underground Gas Storage

被引：1

作者：

Zhao, Huijun ^{[1
]}

Chen, Fei ^{[1
]}

Zhou, Hao ^{[1
]}

Lv, Xiaofei ^{[1
]}

Zhou, Ning ^{[2
]}

Xie, Xiaoqian ^{[1
]}

Zhang, Dong ^{[1
]}

Li, Jinwen ^{[1
]}

机构：

[1] Changzhou Univ, Jiangsu Key Lab Oil Gas Storage & Transportat Tech, Changzhou 213164, Peoples R China

[2] Changzhou Univ, Sch Petr Engn, Changzhou 213164, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2024年 / 33卷 / 15期

关键词：

acidic gas environment; corrosion mechanism; gas injection; withdrawal pipeline; gum; CARBON-DIOXIDE; CO2; CORROSION; MILD-STEEL; BEHAVIOR; H2S; IRON; O-2; XPS; ENVIRONMENT; INHIBITORS;

D O I：

10.1007/s11665-023-08491-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion mechanism of L245NS steel and L360QS steel of gas injection/withdrawal pipeline of underground gas storage in different acidic gas environments was studied by means of SEM, EDS, XRD, XPS, and GC-MS. The results show that Fe2O3, Fe3O4, and CaCO3 with poor protection were formed on the surface of L245NS steel, which provided a channel for the corrosive medium to contact the surface of the metal matrix and accelerated the corrosion rate of the pipeline. Meanwhile, CI- had a small radius and strong penetrability, which was easy to pass through the product film to reach the surface of the metal matrix to participate in the reaction, resulting in corrosion defect pits. The inner wall of L360QS steel was attached with gum, forming a dense protective film on the inner surface of the pipeline, and it was difficult for corrosive substances to enter the metal matrix, which played a role in inhibiting the corrosion of the pipeline.

引用

页码：7864 / 7877

页数：14

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