理化检验-物理分册2024，Vol.60Issue(7)：44-47,4.DOI:10.11973/lhjy-wl220275
20钢输气管道穿孔原因
Causes of perforation in 20 steel gas pipeline
王冬林 1冯娟 2杨坤 1闫凯1
作者信息
- 1. 中国石油集团工程材料研究院有限公司,西安 710077||北京隆盛泰科石油管科技有限公司,北京 100101
- 2. 延长油田股份有限公司子长采油厂,延安 717300
- 折叠
摘要
Abstract
A gas pipeline in a certain oilfield experienced perforation.The causes of pipeline perforation were studied using methods such as macroscopic observation,wall thickness measurement,chemical composition analysis,metallographic examination,mechanical property testing,scanning electron microscopy and energy spectrum analysis.The results show that the cause of weld seam perforation and leakage was the deposition of solid particles carried by natural gas,which formed crevice with the inner surface of the incomplete weld seam.Under the action of aqueous and acidic media,the pipeline underwent crevice corrosion,the weld seam anodic dissolution,and ultimately led to corrosion perforation of the pipeline.关键词
输气管道/穿孔/缝隙腐蚀/固体颗粒沉积/酸性介质Key words
gas pipeline/perforation/crevice corrosion/solid particle deposition/acidic medium分类
通用工业技术引用本文复制引用
王冬林,冯娟,杨坤,闫凯..20钢输气管道穿孔原因[J].理化检验-物理分册,2024,60(7):44-47,4.
