L245钢在气田模拟水溶液中的氢渗透行为研究

采用Devnathan-Stachurski双电解池技术,在饱和硫化氢的气田模拟水溶液中,测定了不同条件下L245钢的扩散系数（D）和可扩散原子氢浓度（C_0）,研究了缓蚀剂CT2-19对原子氢渗透的影响。结果表明,在试验条件下,L245钢可扩散原子氢浓度（C_0）与充氢电流（I）呈线性关系,即C_0=0.63＋0.12I;缓蚀剂CT2-19在试验浓度下对L245钢原子氢渗透有明显的抑制作用。...

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Bibliographic Details
Published in石油与天然气化工 Vol. 45; no. 2; pp. 55 - 57
Main Author 袁曦 蒙恬 石磊 张强 谷坛 肖杰 江晶晶 汪枫 易大森
Format Journal Article
LanguageChinese
Published 2016
Subjects
L245钢
原子氢浓度
原子氢渗透
氢致开裂
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Summary:采用Devnathan-Stachurski双电解池技术,在饱和硫化氢的气田模拟水溶液中,测定了不同条件下L245钢的扩散系数（D）和可扩散原子氢浓度（C_0）,研究了缓蚀剂CT2-19对原子氢渗透的影响。结果表明,在试验条件下,L245钢可扩散原子氢浓度（C_0）与充氢电流（I）呈线性关系,即C_0=0.63＋0.12I;缓蚀剂CT2-19在试验浓度下对L245钢原子氢渗透有明显的抑制作用。
Bibliography:51-1210/TE
By an electrochemical method of Devnathan-Stachurski,hydrogen permeation（D）and hydrogen content（C_0）in L245 pipeline steel during cathodic charging with hydrogen were measured,and the effect of inhibitor CT2-19 for L245 pipeline steel hydrogen permeation was evaluated.Experimental results showed that during dynamically charging with hydrogen of L245 pipeline steel in field simulation solution,the concentration of diffusible hydrogen（C_0）is directly proportional to cathodic current（I）,i.e,C_0=0.63＋0.12 I;inhibitor CT2-19 is a good inhibitor for inhibiting hydrogen permeation at the experimental concentration.
Yuan Xi, Meng Tian, Shi Lei , Zhang Qiang, Gu Tan, Xiao Jie, Jiang Jingjing , Wang Feng , Yi Dasen （1. Research Institute of Natural Gas Technology, PetroChina Southwest Oil and Gasfield Company, Che~l gdu 610213, China ; 2. College of Oil and engineering, Southwest Petroleum University, Chengdu 610600, China; 3. Northeastern Sichuan Project Department, PetroChina Southwest Oil and Gasfield Compa
ISSN:1007-3426