Corrosion Behavior of 16Mn Steel under Different CO2 Partial Pressure in Oil Field Gathering and Transportation System
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摘要: 采用浸泡试验、电化学试验等方法研究了16Mn钢在模拟油田集输系统中不同CO2分压（0，0.15，0.3 MPa）下的腐蚀行为。结果表明：16Mn钢的腐蚀速率随CO2分压的增加呈先增大后减小的变化趋势；当CO2分压为0时，16Mn钢表面未形成腐蚀产物膜，为均匀腐蚀；当CO2分压为0.15 MPa时，腐蚀产物膜较完整致密，为均匀腐蚀；当CO2分压为0.30 MPa时，腐蚀产物膜变薄并有明显缺陷，为典型的台地腐蚀；16Mn钢表面的腐蚀产物主要是FeCO3；16Mn钢的腐蚀反应主要以阳极活化溶解为主，电化学阻抗谱的中频感抗弧与腐蚀产物的溶解吸收有关，低频容抗弧与腐蚀产物膜覆盖区的活化溶解有关。Abstract: The corrosion behavior of 16Mn steel in the stimulating environment of oil field gathering and transporting system with different CO2 partial pressure was investigated by dipping test and electrochemical test. The results show that the corrosion rate of 16Mn steel increased first then decreased with the increase of CO2 partial pressure. The corrosion product scale was not formed on the surface of 16Mn steel when CO2 partial pressure was 0 and the type of corrosion was uniform corrosion. The corrosion product scale was complete and compact at the CO2 partial pressure of 0.15 MPa and the type of corrosion was uniform corrosion. When CO2 partial pressure was 0.30 MPa, the corrosion product scale became thinner and defects occurred,and the type of corrosion was platform corrosion. The main corrosion product on the surface of 16Mn steel was FeCO3. The major corrosion behavior of 16Mn steel was anodic active dissolution. The middle frequency inductive loop of electrochemical impedance spectroscopy was related to the dissolution and absorption of corrosion products. The low frequency capacitive loop was related to the active dissolution of corrosion scale covered area.
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[1] 吴水林,崔振铎,李春福,等. 油管钢在饱和二氧化碳模拟油田液中的腐蚀研究[J]. 中国腐蚀与防护学报, 2003, 23(6):340-344. [2] 李士国.CO2驱注采井防腐技术研究[D].大庆:东北石油大学,2010. [3] CARLOS A, PALACIOS T, YLDRET H. Application of simulation techniques for internal corrosion prediction[J]. Journal of Radiation Reseach, 1997, 38(2):87-94.
[4] 王霞,张仁勇,上官昌淮,等. 两种套管钢在含CO2模拟油田地层水中的腐蚀行为[J]. 机械工程材料,2013, 37(5):69-72. [5] 朱世东,李金灵,杨志刚,等. 温度对J55油管CO2腐蚀行为的影响[J]. 机械工程材料,2014,38(8):6-10. [6] 曾德智,邓文良,田刚,等. 温度对T95钢在H2S/CO2环境中腐蚀行为的影响[J]. 机械工程材料, 2016, 40(6):28-32. [7] GARBER J D, POLAKI V, ADAMS C, et al. Modeling corrosion rates in non-annular gas condensate wells contailing CO2[C]//NACE International.[S.l.]:[s.n.], 1998.
[8] NESIC S, POSTLETHWAITE J, VRHOVAC M. CO2 corrosion of carbon steel-from mechanistic to empirical modelling[J]. Corrosion Reviews, 1997, 15(1/2):211-240.
[9] GRAY L G. Mechanism of carbon steel corrosion in brines containing dissolved carbon dioxide at pH4[C]//NACE International.[S.l.]:[s.n.], 1989.
[10] GRAY L G. Effect of pH and temperature on the mechanism of carbon steel corrosion by aqueous carbon dioxide[C]//NACE International.[S.l.]:[s.n.], 1990.
[11] DUGSTAD A, LUNDE L, VIDEM K. Parametric study of CO2 corrosion of carbon steel//NACE International.[S.l.]:[s.n.], 1994.
[12] 王峰.CO2驱采油井筒腐蚀规律及防治方法研究[D].大庆:东北石油大学,2011. [13] 秦开明,彭建国,李芳,等. N80钢CO2腐蚀缓蚀剂筛选及性能评价[J]. 管道技术与设备, 2013(6):30-32. [14] 毕凤琴,张成果,徐子怡,等. 不同类型缓蚀剂在含饱和CO2油田采出液中对P110钢的缓蚀性能研究[J]. 兵器材料科学与工程, 2013(2):9-13. [15] 韩霞,王子明,王田丽. 气液比对CO2驱集输管线腐蚀的影响规律[J].实验研究,2014,33(12):27-28. [16] 陈长风,路民旭,赵国仙,等. N80油套管钢CO2腐蚀产物膜特征[J]. 金属学报, 2002, 38(4):411-416. [17] 郭少强,许立宁,常炜,等.3Cr管线钢CO2腐蚀实验研究[J].金属学报,2011(8):1067-1074. [18] SCHMITT G. Advances in CO2 Corrsion[J]. Corrosion, 1984, 1:1-10.
[19] OBEYESEKERE N, NARAGHI A, ZHOU S. Further advances of environmentally friendly corrosion inhibitors for CO2 corrosion in north sea oil fields[C]//NACE International.[S.l.]:[s.n.], 2002.
[20] VIDEM K. Predicting CO2 Corrsion in the Oil and Gas Industry[R]. London:The Institute of Materials, 1994.
[21] WAARD C D, LOTZ U, MILLIAMS D E. Predictive model for CO2 corrosion engineering in wet natural gas pipelines[J]. Corrosion, 1991, 47(12):976-985.
[22] PURRINGTON C B, SCHMITT J. Sexual dimorphism of dormancy and survivorship in buried seeds of silene latifolia[J]. Journal of Ecology, 1995, 83(5):795-800.
[23] 张国安,路民旭,吴荫顺. CO2腐蚀产物膜的微观形貌和结构特征[J]. 材料研究学报, 2005,19(5):537-548. [24] 陈长风,路民旭,赵国仙,等. N80钢CO2腐蚀电极过程交流阻抗分析[J]. 金属学报, 2002,38(7):770-774.
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