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2 在不同温度下浸泡14 d后TP125V钢表面腐蚀产物的EDS能谱分析结果 (mass fraction / %)

Table 2 EDS analysis results of corrosion products formed on TP125V steel after 14 d immersion at different temperatures

T / oC C O Ca Fe Si Mn Cu Ba Mg Zr Cr 60 9.02 30.33 0.55 54.15 0.97 0.60 3.31 --- --- 0.80 --- 90 9.23 24.41 5.69 53.54 2.36 0.35 1.27 --- 1.33 --- 0.84 100 7.64 34.37 1.06 53.06 0.79 0.50 --- --- 0.35 1.16 --- 110 5.13 13.93 1.18 66.66 0.36 0.44 --- 5.88 2.12 1.00 1.08 120 5.82 41.45 --- 51.85 --- 0.24 --- --- --- --- 0.23