天然气集输管道微生物腐蚀规律及腐蚀速率模型
Microbiological Corrosion Law and Corrosion Rate Model of Natural Gas Gathering and Transportation Pipeline
摘 要
为了研究硫酸盐还原菌(SRB)对天然气集输管道腐蚀行为的影响,通过浸泡试验,研究了常压和高压条件下不同SRB含量时5种钢材的腐蚀速率及其耐SRB腐蚀性能。依据试验结果建立了微生物腐蚀速率预测模型,并利用PIPSIM软件模拟管道温度和压力变化对模型进行了修正。结果表明:在常压和高压环境中,钢材的腐蚀速率均随着SRB含量的增加而增大,其中N80钢的耐SRB腐蚀能力最强;根据预测模型计算的腐蚀速率与实际腐蚀速率存在0.06~0.07 mm/a的误差,修正后的模型能够更好地预测管道微生物腐蚀速率。
天然气集输管道
腐蚀速率模型
腐蚀规律
sulfate-reducing bacteria (SRB)
natural gas gathering and transportation pipeline
corrosion rate model
corrosion law
Abstract
In order to investigate the effect of sulfate-reducing bacteria (SRB) on the corrosion behavior of natural gas gathering and transportation pipelines, the corrosion rate of five steel materials at different SRB concentrations and their anti-bacterial corrosion performance under normal-pressure and high-pressure conditions were studied in immersion test. A prediction model of microbial corrosion rate was established based on the experimental results. PIPSIM software was used to simulate the changes of pipeline temperature and pressure to modify the model. The results show that in both normal-pressure and high-pressure environments, the corrosion rates of five steel materials increased with the increase of SRB concentration. N80 steel had the strongest resistance to SRB corrosion. There was an error of 0.06-0.07 mm/a between the corrosion rates calculated by the prediction model and the actual corrosion rates. The modified model could better predict the pipeline microbial corrosion rate.
中图分类号 TG172 DOI 10.11973/fsyfh-202205005
所属栏目 数值模拟
基金项目
收稿日期 2021/11/9
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: ZHANG Zhe,ZHANG Xinpeng,CHEN Lei,LIU Qian,CHEN Guifang,LIU Xinyue. Microbiological Corrosion Law and Corrosion Rate Model of Natural Gas Gathering and Transportation Pipeline[J]. Corrosion & Protection, 2022, 43(5): 30
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参考文献
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【2】JIA R,TAN J L,JIN P,et al. Effects of biogenic H2S on the microbiologically influenced corrosion of C1018 carbon steel by sulfate reducing Desulfovibrio vulgaris biofilm[J]. Corrosion Science,2018,130:1-11.
【3】张科,朱丽霞,何志,等. X52输气管道腐蚀失效分析[J].腐蚀与防护,2020,41(4):73-78.
【4】王维锋,杨浩波,李淑姣.某平台生产水管线的腐蚀失效原因[J].腐蚀与防护,2016,37(11):939-942.
【5】杨寨.海上某油田海底管线的腐蚀失效原因[J].腐蚀与防护,2016,37(1):76-79.
【6】谢明,唐永帆,宋彬,等.页岩气集输系统的腐蚀评价与控制——以长宁-威远国家级页岩气示范区为例[J].天然气工业,2020,40(11):127-134.
【7】朱丽霞,罗金恒,李丽锋,等.页岩气输送用转角弯头内腐蚀减薄原因分析[J].表面技术,2020,49(8):224-230.
【8】GASPAR J,MATHIEU J,YANG Y,et al. Microbial dynamics and control in shale gas production[J]. Environmental Science&Technology Letters,2014,1(12):465-473.
【9】周国信,雷宝艳.油田采出水对注水系统腐蚀机理的探讨[J].辽宁化工,2011,40(3):304-306.
【10】谷坛,唐德志,王竹,等.典型离子对碳钢CO2腐蚀的影响[J].天然气工业,2019,39(7):106-112.
【11】高多龙,杨志文,葛鹏莉,等. L245NS伴生气管线腐蚀穿孔原因分析[J].材料保护,2020,53(10):126-130.
【12】杨娇,谭军,赵东升,等.某外输管线内壁腐蚀原因分析[J].材料保护,2019,52(10):158-162.
【13】胡建国,罗慧娟,张志浩,等.长庆油田某输油管道腐蚀失效分析[J].腐蚀与防护,2018,39(12):962-965,970.
【14】叶正荣,桂晶,裘智超,等.某油田地面注水管线腐蚀失效分析[J].材料保护,2018,51(11):148-151.
【15】蒋秀,刘艳,范举忠,等.某集气站排污水管腐蚀失效原因分析[J].腐蚀科学与防护技术,2017,29(2):195-198.
【16】DE WAARD C,LOTZ U,MILLIAMS D E. Predictive model for CO2 Corrosion engineering in wet natural gas pipelines[J]. CORROSION,1991,47(12):976-985.
【17】彭龙,韩国庆,杨杰,等.渤海油田CO2腐蚀速率预测模型[J].石油科学通报,2020,5(4):531-540.
【18】吕帅帅,倪威,倪红军,等.铝灰渣中AlN水解行为及其多元非线性回归分析[J].中国有色金属学报,2020,30(4):920-926.
【19】陈佳雨,刘之葵,陈永国,等.纤维红黏土强度的正交试验及多元非线性回归分析[J].水文地质工程地质,2020,47(1):117-124.
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