20号钢在气田站场分离器积液中的腐蚀行为
Corrosion Behavior of 20# Steel in Effusion of Separator in Gas Plant
摘 要
通过室内挂片试验研究了CO2含量、温度和流速对20号钢在长庆油田苏203井区分离器积液包中腐蚀行为的影响。结果表明：随着CO2含量、温度和流速的增大，试样的腐蚀速率均增大，且腐蚀产物均以FeCO3为主，而腐蚀形貌的发展过程各不相同。
分离器积液
腐蚀
CO2
温度
流速
20# steel
effusion of separator
corrosion
CO2
temperature
flow rate
Abstract
The effects of CO2 content, temperature and flow rate on the corrosion behavior of No. 20 steel in the effluent pack of the Se203 well in Changqing Oilfield were studied by indoor coupon test. The results show that with the increase of CO2 content, temperature and flow rate, the corrosion rate of the samples increased, and the corrosion products were mainly FeCO3, and the development process of corrosion morphology was different.
中图分类号 TG174 DOI 10.11973/fsyfh-201811006
所属栏目 试验研究
基金项目
收稿日期 2017/8/17
修改稿日期
网络出版日期
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引用该论文: ZHAO Xu,LI Zili,YAN Xiaofeng. Corrosion Behavior of 20# Steel in Effusion of Separator in Gas Plant[J]. Corrosion & Protection, 2018, 39(11): 838
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参考文献
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【2】DUGSTAD A. Fundamental aspects of CO2 metal loss corrosion-Part I:Mechanism[C]//Corrosion 2006. Houston.TX:NACE.2006:06111.
【3】NORDSVEEN M,NESIC S,NYBORG R,et al. A mechanistic model for carbon dioxide corrosion of mild steel in the presence of protective iron carbonate films-Part 1:Theory and verification[J]. Corrosion,2003,59(5):443-456.
【4】DE WAARD C,SMITH L M,CRAIG B D. The influ- ence of crude oils on well tubing corrosion rates[C]//Corrosion 2003. Houston.TX:NACE.2003:03629.
【5】LIN G,ZHENG M,BAI Z,et al. Effect of temperature and pressure on the morphology of carbon dioxide corrosion scales[J]. Corrosion,2006,62(6):501-507.
【6】KERMANI M B,SMITH L M. 油气田中的CO2腐蚀控制-设计考虑因素[M]. 王西平,等译. 北京:石油工业出版社,2002:22.
【7】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.
【8】刘晓旭,许晶晶,王磊,等. 二氧化碳驱注采井常用油套管钢的腐蚀行为[J]. 腐蚀与防护,2017,38(7):529-532.
【9】俞芳,高克玮,乔利杰,等. 温度对N80钢CO2腐蚀产物膜结构和力学性能的影响[J]. 腐蚀与防护,2009,30(3):145-157.
【10】张学元,邸超,陈卓元,等. LN209井油管沉积物下方腐蚀行为[J]. 腐蚀科学与防护技术,1999,11(5):279-283.
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