模拟油田CO2／H2S环境中P110钢的动态腐蚀行为  

Dynamic Corrosion Behavior of P110 Steel in Stimulated Oil Field CO_2/H_2S Environment

作　　者：朱世东[1,2] 刘会[1] 白真权[2] 林冠发[2] 尹成先[2] 

机构地区：[1]西安石油大学材料科学与工程学院 [2]中国石油天然气集团公司石油管力学和环境行为重点实验室

出　　处：《石油与天然气化工》2009年第1期65-68,共4页Chemical engineering of oil & gas

基　　金：中国石油天然气集团公司基础研究项目(06A40302)

摘　　要：利用高温高压釜模拟油田CO2/H2S腐蚀环境,采用失重法、SEM、EDS和XRD试验或测试技术,研究了P110钢的动态腐蚀行为。结果表明:P110钢的腐蚀速率随着温度的升高和H2S分压的增大都呈先增大后减小的趋势,且分别在90℃与0.06MPa时取得最大值;随着CO2分压的增大呈逐渐增大趋势;腐蚀膜形貌呈现不平整或不均匀的形态,主要成分是FeS1-x、FeCO3和Fe3C的混合物。The dynamic corrosion behavior of P110 steel was investigated in stimulated oil field CO2/H2S environment.The corrosion scales were analyzed by using SEM,EDS and XRD.Simultaneously,the corrosion rate was measured by the weight loss method.The results showed that the corrosion rate of P110 steel increased first and decreased subsequently with the increase of temperature and H2S partial pressure,and the maximal corrosion rate was presented at 90℃ and 0.06MPa individually;the corrosion rate of P110 steel increased gradually with the increase of CO2 partial pressure;corrosion morphologies was uneven,and the mainly composition were compound of FeS1-x,FeCO3 and Fe3C.

关 键 词：P110钢 温度 CO_2/H_2S Cl^- 

分 类 号：TE983[石油与天然气工程—石油机械设备]