重庆科技大学学报（自然科学版）2026，Vol.28Issue(1)：9-16,8.DOI:10.19406/j.issn.2097-4531.2026.01.002
地下储气库SM-80S钢管柱冲蚀-CO2腐蚀耦合实验研究
Experimental Study on the Coupling of Erosion and CO2 Corrosion of SM-80S Steel Pipe String in Underground Gas Storage
摘要
Abstract
Based on the gas-liquid-solid three-phase visualized pipe flow erosion-corrosion experiment,this study investigates the coupling mechanism of erosion and CO2 corrosion in SM-80S steel pipe strings.The findings reveal the following:1)Under low gas flow velocity conditions,the SM-80S steel specimen was subjected to micro-cutting friction by sand particles,while under high gas flow velocity conditions,it experienced multiple effects including impact deformation and ploughing by sand particles;2)In an acidic gas environment containing CO2,the hardness of corrosion products on the surface of the SM-80S steel specimen was significantly lower than the original hardness of the specimen.Moreover,when the CO2 partial pressure exceeded 0.4 MPa,the erosion-corrosion(E-C)rate was more than three times higher than the erosion rate under pure erosion conditions;3)Under high gas flow veloc-ity conditions,corrosion products on the surface of the SM-80S specimen were rapidly removed,preventing the for-mation of a complete and stable corrosion product film on the specimen's substrate surface.关键词
地下储气库/SM-80S钢管柱/气液固三相/冲蚀-CO2腐蚀Key words
gas storage/SM-80S steel pipe string/gas-liquid-solid three-phase/erosion-CO2 corrosion分类
能源科技引用本文复制引用
邓兴旺,谢川,王云,黄小亮,朱窈佳..地下储气库SM-80S钢管柱冲蚀-CO2腐蚀耦合实验研究[J].重庆科技大学学报（自然科学版）,2026,28(1):9-16,8.基金项目
国家科技重大专项"储气库高效运行与智能调峰技术研究"(2025ZD1406806) （2025ZD1406806）
重庆市教委科学技术研究计划重大项目"水驱气藏型储气库多周期注采渗流机理及库容参数变化研究"(KJZD-M202401501) （KJZD-M202401501）
重庆科技大学研究生创新计划项目"地下储气库复杂注采工况下P110管柱冲蚀机理研究"(YKJCX2420122) （YKJCX2420122）
