高温多元热流体注采液中N80钢的腐蚀行为
Corrosion Behavior of N80 Steel in High Temperature Multi-component Thermal Fluid for Thick Oil Exploitation
摘 要
采用高温高压釜失重法和扫描电子显微镜(SEM)对多元热流体中N80钢的高温腐蚀行为进行了研究。结果表明, 在高压CO2和有少量O2的介质中, 温度40~280 ℃范围内, N80钢的腐蚀速率出现两个极大值, 分别在60 ℃和180 ℃, 这与钢表面碳酸亚铁膜和氧化膜的生成及变化有关。240 ℃时N80钢的静态腐蚀速率最大, 动态下流速增大对腐蚀速率的影响较小, 高温下动态腐蚀主要由氧传质控制, O2加速了N80钢的高温CO2腐蚀。
N80钢
高温
二氧化碳
氧
腐蚀
multi-compotent thermal fluid
N80 steel
high temperature
carbon dioxide
oxygen
corrosion
Abstract
Corrosion behavior of N80 steel in high temperature multi-component thermal fluid was studied by weight loss method in autoclave and scanning electron microscopy. The results showed that in the medium with high pressure carbon dioxide and slight oxygen in the temperature range 40~280 ℃, there were two corrosion rate peaks of the steel at 60 ℃ and 180 ℃ respectively. The corrosion characteristics were concerned with the variation of corrosion product mainly composed of ferrous carbonate and oxide. In the multi-component thermal fluid, the static corrosion rate of the steel reached the maximum, and in dynamic state the flow rate only showed a slight effect on the corrosion rates. So the high dynamic corrosion is dependent on the oxygen mass-transfer control. Oxygen increases the CO2 corrosion of steel N80 at high temperatures obviously.
中图分类号 TG174
所属栏目 试验研究
基金项目
收稿日期 2011/11/8
修改稿日期
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备注付朝阳, 副教授, 博士,
引用该论文: SUN Yong-tao,CHENG Peng,MA Zeng-hua,FU Chao-yang. Corrosion Behavior of N80 Steel in High Temperature Multi-component Thermal Fluid for Thick Oil Exploitation[J]. Corrosion & Protection, 2012, 33(3): 218
被引情况:
【1】林学强,李效波,张海龙,张晶,董帅,柳伟,吴飞,路民旭, "温度对N80钢在CO2/O2共存环境中腐蚀行为的影响",腐蚀与防护 35, 56-59(2014)
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参考文献
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【2】Michael E P, James P M, Stephanie R M. Carbon dioxide enhanced oil recovery injection operations technologies[J]. Energ.Proced, 2009, 1(1):3141-3148.
【3】Rychlicki S, Stopa J, Zawisza L. Screening criteria for selecting oil reservoirs for CO2 enhanced oil recovery[J]. Gospodarka Surowcami Mineralnymi-mineral Resources Management, 2011, 27(3):125-139.
【4】李士伦, 周守信, 杜建芬, 等. 国内外注气提高石油采收率技术回顾与展望[J]. 油气地质与采收率, 2002, 2(9):1-5.
【5】唐晓旭, 马跃, 孙永涛. 海上稠油多元热流体吞吐工艺研究及现场试验[J]. 中国海上油气, 2011, 3(23):185-188.
【6】朱信刚, 龙媛媛, 杨为刚, 等. 多元热流体对油气采输管线的腐蚀[J]. 腐蚀与防护, 2009, 30(5):316-317.
【7】徐海升, 李谦定. N80油管钢在CO2/H2S水介质中的腐蚀研究[J]. 材料保护, 2009, 7(42):59-62.
【8】李全安, 张清, 文九巴, 等. 温度对油管钢CO2腐蚀产物膜的影响[J]. 材料热处理学报, 2004, 25(1):79-83.
【9】黄天杰, 王峰. N80钢在二氧化碳饱和的模拟油田液中的高温高压腐蚀行为研究[J]. 腐蚀科学与防护技术, 2009, 5(21):486-488.
【10】李建平, 赵国仙, 郝士明. 几种因素对油套管钢CO2腐蚀行为影响[J]. 中国腐蚀与防护学报, 2005, 4(25):242-244.
【11】Li D G, Feng Y R, Bai Z Q. Characteristics of CO2 corrosion scale formed on N80 steel in stratum water with saturated CO2[J]. Applied surface science, 2007, 253(20):8371-8376.
【12】Cai Y D, Guo P C, Liu D M. Comparative study on CO2 corrosion behavior of N80, P110, X52 and 13Cr pipe lines in simulated stratum water[J]. Science china-Technological sciences, 2010, 53(9):2342-2349.
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