气井井下管串腐蚀影响因素的电化学认识  

THE ELECTROCHEMICAL KNOWLEDGE OF INFLUENCE FACTORS FOR DOWNHOLE STRINGS CORROSION IN GAS WELL

作　　者：刘文忠[1] 

机构地区：[1]西南油气田分公司重庆工程造价站

出　　处：《钻采工艺》2005年第2期87-89,106,共4页Drilling & Production Technology

摘　　要：从化学反应速度、弱电离理论、物质溶度积、气体溶解度等多角度认识天然气中H2 S、CO2 气体对气井井下管串在不同情况、不同井段的腐蚀作用,阐述了多因素的共同影响。This paper recognized the corrosion action of downhole strings in gas well in different condition and different hole section, which is affected by H 2S, CO 2 of natural gas, on many views of chemical velocity, weak ionization theory, material capability and gas solubity. And formulized the common influences of many factors, it is instructive to judge the corrosion of downhole strings.

关 键 词：气井 管串 腐蚀 认识 

分 类 号：TE982[石油与天然气工程—石油机械设备]