温度对旅大5-2油田热水驱回注管线腐蚀的影响规律
Influence of Temperature on Corrosion Behaviour of Hot Water Flooding Tubing in Lvda 5-2 Oilfield
摘 要
采用高温高压腐蚀试验，研究了温度对旅大5-2油田热水驱回注管线腐蚀行为的影响，并采用扫描电镜、能谱仪和X射线衍射仪，分析了温度对管线腐蚀的影响机理。结果表明：在60~260℃范围内，管线的腐蚀速率随着温度的升高先增加后减小，峰值出现在150℃，不同温度下管线的腐蚀速率均超过0.076 mm/a的标准值；不同温度下形成的腐蚀产物膜差异较大，在60~110℃下腐蚀产物很少，在130℃及150℃下形成了Ca0.1Mg0.33Fe0.57（CO3），产物较多、较为疏松，在180℃下产物膜为Ca0.1Mg0.33Fe0.57（CO3），分为致密底层和疏松表层；在260℃下形成了较致密的薄层CaCO3产物膜。
N80钢
腐蚀行为
温度
hot water flooding
N80 steel
corrosion behavior
temperature
Abstract
The influence of temperature on the corrosion behavior of hot water flooding reinjection pipeline in Lvda 5-2 oilfield was studied by high temperature and high pressure corrosion test. The influence mechanism of temperature on pipeline corrosion was analyzed by scanning electron microscope, energy dispersive spectrometer and X-ray diffractometer. The results showed that with the increase of temperature in the range of 60-260℃, the corrosion rate of pipelines increased first and then decreased, and the peak value appearred at 150℃. The corrosion rate of pipelines at different temperatures exceeded the standard value of 0. 076 mm/a. The corrosion product films formed at different temperatures was quite different. At 60-110℃, there were few corrosion products. At 130℃ and 150℃,Ca0. 1Mg0. 33Fe0. 57(CO3) were formed, and the products were more and looser. At 180℃, the product film was Ca0. 1Mg0. 33Fe0. 57(CO3), which was divided into dense bottom layer and loose surface layer. A dense thin layer of CaCO3 product film was formed at 260℃.
中图分类号 TG174 DOI 10.11973/fsyfh-202312007
所属栏目 试验研究
基金项目 绥中36-1/旅大5-2二次调整项目（CCL2021TJT0NST0804）
收稿日期 2021/11/30
修改稿日期
网络出版日期
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联系人作者王虎(senty78@126.com)
引用该论文: CHEN Huaxing,LIU Yigang,PANG Ming,WANG Yufei,BAI Jianhua,WANG Hu. Influence of Temperature on Corrosion Behaviour of Hot Water Flooding Tubing in Lvda 5-2 Oilfield[J]. Corrosion & Protection, 2023, 44(12): 45
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【3】訾晓晨, 司毅壮, 李鹏亮, 等.油田井站热水循环系统腐蚀技术改造[J].化工管理, 2015(5):175.
【4】谢成. 油田热水系统钢材的腐蚀与防护研究[D].长沙:湖南大学, 2006.
【5】雍彦, 陈广武, 钱钦.油田井站热水循环系统腐蚀技术改造[J].内江科技, 2011, 32(5):129, 153.
【6】周迎梅. 胜利油田采出水换热器腐蚀结垢影响因素的试验研究[J].中国石油大学胜利学院学报, 2019, 33(2):39-44.
【7】刘光成, 孙永涛, 马增华, 等.海上多元热流体注采管材腐蚀分析与缓蚀剂评价[J].广东化工, 2014, 41(10):3-4, 6.
【8】吕振嘉, 胡全良.注高温热水管线缓蚀、阻垢实验研究[J].油田化学, 1992, 9(4):320-323.
【9】闫化云, 苏长春, 朱凯, 等.旅大油田水源井处理系统腐蚀原因分析[J].腐蚀与防护, 2010, 31(3):242-244, 254.
【10】BARKER R, HUA Y, NEVILLE A.Internal corrosion of carbon steel pipelines for dense-phase CO2 transport in carbon capture and storage (CCS)-a review[J].International Materials Reviews, 2017, 62(1):1-31.
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【12】孙冲, 孙建波, 王勇, 等.超临界CO2/油/水系统中油气管材钢的腐蚀机制[J].金属学报, 2014, 50(7):811-820.
【13】SUN W, NEŠI AČG S, WOOLLAM R C.The effect of temperature and ionic strength on iron carbonate (FeCO3) solubility limit[J].Corrosion Science, 2009, 51(6):1273-1276.
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【20】REN X D, WANG H, WEI Q, et al.Electrochemical behaviour of N80 steel in CO2 environment at high temperature and pressure conditions[J].Corrosion Science, 2021, 189:109619.
【21】BERNTSEN T, SEIERSTEN M, HEMMINGSEN T.Effect of FeCO3 supersaturation and carbide exposure on the CO2 corrosion rate of carbon steel[J].Corrosion, 2013, 69(6):601-613.
【22】HUA Y, XU S S, WANG Y, et al.The formation of FeCO3 and Fe3O4 on carbon steel and their protective capabilities against CO2 corrosion at elevated temperature and pressure[J].Corrosion Science, 2019, 157:392-405.
【23】ZHANG Y C, PANG X L, QU S P, et al.Discussion of the CO2 corrosion mechanism between low partial pressure and supercritical condition[J].Corrosion Science, 2012, 59:186-197.
【24】PESSU F, BARKER R, NEVILLE A.The influence of pH on localized corrosion behavior of X65 carbon steel in CO2-saturated brines[J].Corrosion, 2015, 71(12):1452-1466.
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