3Cr合金钢在尿素辅助稠油蒸汽吞吐环境中的初期腐蚀行为

张运军, 蒋有伟, 张忠义, 吕乃欣, 陈君伟, 连国锋

Initial Corrosion Behavior of 3Cr Alloy Steel in Urea Assisted Heavy Oil Steam Huff and Puff Environments

ZHANG Yunjun, JIANG Youwei, ZHANG Zhongyi, LV Naixin, CHEN Junwei, LIAN Guofeng

表1 高温高压动态腐蚀实验方案

Table 1 Experimental program for high temperature and high pressure dynamic corrosion

Number Urea solution Temperature / ℃ Decomposition pressure / MPa Experimental pressure / MPa Time / h 1 5% 50 1.72 0.11 240 2 10% 50 2.54 0.11 240 3 20% 50 3.37 0.12 240 4 30% 50 4.62 0.14 240 5 5% 80 1.72 0.18 240 6 10% 80 2.54 0.19 240 7 20% 80 3.37 0.21 240 8 30% 80 4.62 0.23 240