天然气井中碳钢的腐蚀因素研究  

Study of Corrosion Behavior of Carbon Steel in Gas Wells

作　　者：赵景茂[1] 左禹[1] 刘鹤霞[1] 郝春山[2] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]中原油田天然气产销总厂,河南濮阳457001

出　　处：《中国海上油气（工程）》2001年第4期21-23,共3页China Offshore Oil and Gas

摘　　要：利用灰关联分析理论研究11口气井碳钢腐蚀的主要影响因素。研究结果表明,产气量大的气井腐蚀严重,而气体流速、CO_2分压和产出水中HCO_3^-离子含量是影响腐蚀的主要因素。探讨这些因素对腐蚀的具体影响,发现腐蚀速度的对数与流速及CO_2分压的对数之间分别存在着线性关系。It is very necessary to determine the factors which significantly influence corrosion of mild steel in gas wells. The results by grey relational analysis show that severe corrosion occurs on those productive gaswells. The velocity of gas, CQ2 partial pressure and content of HCO3 ion in produced water have marked influence on corrosion. The logarithm of the corrosion rate increases linearly with the logarithm of gas velocity and CQ2 partial pressure respectively.

关 键 词：碳钢腐蚀 冲刷腐蚀 灰色系统 灰关联分析 天然气井 

分 类 号：TE983[石油与天然气工程—石油机械设备]