油气水混输海底管道微生物腐蚀风险评估与控制

王小龙; 朱文胜; 王晓东; 岳宗领; 何源; 于海涛; 赵永平; 王鸿轩

doi:10.7643/ issn.1672-9242.2025.10.010

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装备环境工程 ›› 2025, Vol. 22 ›› Issue (10) : 79-85. DOI: 10.7643/ issn.1672-9242.2025.10.010

船舶及海洋工程装备

油气水混输海底管道微生物腐蚀风险评估与控制

王小龙¹, 朱文胜¹, 王晓东², 岳宗领², 何源², 于海涛¹, 赵永平¹, 王鸿轩¹

作者信息 +

Risk Assessment and Control of Microbial Corrosion in Submarine Pipelines for Oil-Gas-Water Multiphase Transmission

WANG Xiaolong¹, ZHU Wensheng¹, WANG Xiaodong², YUE Zongling², HE Yuan², YU Haitao¹, ZHAO Yongping¹, WANG Hongxuan¹

Author information +

文章历史 +

摘要

目的评估并管控海底管道微生物腐蚀风险。方法利用现场监测和室内高温高压模拟实验进行微生物腐蚀风险评估、腐蚀抑制策略及检测技术研究。结果 500 mg/L量级的较低pH杀菌剂加注到海底管道物流后,虽然杀菌效果显著,但是不仅显著降低了海底管道物流的pH值,还对缓蚀剂在高温高压模拟条件下的性能评价结果产生显著不利影响。现场物流温度和35 ℃条件下的微生物培养结果存在明显差异。结论杀菌剂的效果评价应兼顾杀菌能力、pH影响以及与缓蚀剂等药剂的配伍性。温度对微生物活性具有重要影响,需在35 ℃和现场物流温度±5 ℃下同时开展微生物检测。

Abstract

The work aims to assess and control the risk of microbiologically influenced corrosion in submarine pipelines. On-site monitoring and indoor high-temperature and high-pressure simulation experiments were utilized to conduct research on microbiologically influenced corrosion risk assessment, corrosion inhibition strategies, and detection techniques. After a low pH bactericide with a concentration of 500 mg/L was added to the submarine pipeline flow, although the bactericidal effect was significant, it not only significantly reduced the pH value of the submarine pipeline flow, but also had a significant adverse effect on the performance evaluation results of the corrosion inhibitor under high-temperature and high-pressure simulation conditions. There was a significant difference in the microbial culture results between the on-site flow temperature and 35 ℃ conditions. The evaluation of bactericide effectiveness should take into account not only its bactericidal capability but also its impact on pH and compatibility with corrosion inhibitors or other chemical additives. Since temperature has a significant effect on microbial activity, microbial monitoring should be conducted both at 35 ℃ and at the field flow temperature within ±5 ℃.

导出引用

王小龙, 朱文胜, 王晓东, 岳宗领, 何源, 于海涛, 赵永平, 王鸿轩. 油气水混输海底管道微生物腐蚀风险评估与控制[J]. 装备环境工程. 2025, 22(10): 79-85 https://doi.org/10.7643/ issn.1672-9242.2025.10.010

WANG Xiaolong, ZHU Wensheng, WANG Xiaodong, YUE Zongling, HE Yuan, YU Haitao, ZHAO Yongping, WANG Hongxuan. Risk Assessment and Control of Microbial Corrosion in Submarine Pipelines for Oil-Gas-Water Multiphase Transmission[J]. Equipment Environmental Engineering. 2025, 22(10): 79-85 https://doi.org/10.7643/ issn.1672-9242.2025.10.010

中图分类号： TG172

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