温度对CO2饱和页岩气压裂液环境中N80和TP125V钢腐蚀行为影响研究

黄家和, 袁曦, 陈文, 闫文静, 金正宇, 柳海宪, 刘宏芳, 刘宏伟

Effect of Temperature on Corrosion Behavior of Pipeline Steels N80 and TP125V in Artificial CO2-saturated Fracturing Fluid of Shale Gas

HUANG Jiahe, YUAN Xi, CHEN Wen, YAN Wenjing, JIN Zhengyu, LIU Haixian, LIU Hongfang, LIU Hongwei

表1 不同温度条件下浸泡14 d后N80钢表面腐蚀产物 的EDS能谱分析结果 (mass fraction / %)

Table 1 EDS analysis results of corrosion products formed on N80 steel after 14 d immersion at different temperature

T / oC C O Ca Fe Si Mn Cu Mg 60 8.09 42.05 42.88 6.63 --- --- --- 0.35 90 10.92 43.29 0.33 25.8 11.34 0.46 --- --- 100 6.48 41.15 0.24 50.71 0.49 0.92 --- --- 110 6.45 29.52 0.51 54.46 --- 0.72 6.03 --- 120 2.98 31.18 --- 65.34 --- 0.50 --- ---