摘要
建南气田是江汉油田分公司唯一一个生产气层气的单位,部分气藏H2S浓度高(高达60g/m3),同时含CO2,油管在井下极易腐蚀,从而导致安全事故和经济损失。该气田以前从未系统地开展过油管选型方面的研究,管柱腐蚀严重,部分气井油管下井不到一年便腐蚀断脱。通过对当前井下管柱腐蚀原因的分析,结合油管挂片和拉伸试验研究成果,优选出适合于建南气田自身特点的油管,为气田安全生产起到良好的促进作用。
Jiannan gas field is the only department produce natural gas of Jianghan oilfield branch company,many of gas reservoir have high H2S content(up to 60g/m3),at the same time contain CO2,the tube are easily corrosion with safety accidents and economic losses appearance.There have no any study for selecting tube type in the past and the pipes were serious corrosion,many of the tube broken off in less than a year in the gas well.Analyzing the reason of the corrosion,combining the coupon and stretch experiment,we select the tube type suited for Jiannan gas field's own characteristics and obtain a good result for safety production of gas field.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
2008年第5期427-431,共5页
Chemical engineering of oil & gas
关键词
天然气井
防腐
油管
选型
gas wells,corrosion prevention,the tube,selecting type
