Processing math: 100%

H2S分压对13Cr不锈钢在CO2注气井环空环境中应力腐蚀行为的影响
王峰, 韦春艳, 黄天杰, 崔中雨, 李晓刚

Effect of H2S Partial Pressure on Stress Corrosion Cracking Behavior of 13Cr Stainless Steel in Annulus Environment Around CO2 Injection Well
WANG Feng, WEI Chunyan, HUANG Tianjie, CUI Zhongyu, LI Xiaogang
表1 13Cr不锈钢电化学测试条件
Table 1 Test conditions of electrochemical measurements of 13Cr stainless steel
Condition Temperarure / ℃ pH Corrosion
inhibitor 		CO2 partial
pressure / MPa 		Total
pressure / MPa 		H2S partial
pressure / MPa 		PCO2/PH2S
1 25 4.0 1×10-3 4.0 9.0 0 ---
2 25 4.0 1×10-3 4.0 9.0 0.05 80
3 25 4.0 1×10-3 4.0 9.0 0.10 40
4 25 4.0 1×10-3 4.0 9.0 0.20 20
5 25 4.0 1×10-3 4.0 9.0 0.30 13.3