摘要
为了清楚认识渤海湾油套同压气井油套管腐蚀状况并提供适宜的防腐策略,调研了五口典型的油套同压气井的运行工况,开展了腐蚀介质检测,对腐蚀速率影响因素进行了分析,并结合实际工况用外推法给出了油套管腐蚀速率。分析结果显示:五口井的油套管中,未采用防腐钢材的,腐蚀速率在2.56 mm/a^3.44 mm/a;采用防腐钢材的,腐蚀速率在0.175 mm/a以内。
To clearly understand of the corrosion of tubing and casing of the gas wells,in Bohai Bay,which have the same pressure in tubing and casing,and to provide appropriate strategies,the operation condition of 5 typical gas wells was investigated,the detection of corrosive media was given,the influence factors of corrosion rate was analyzed,the corrosion rate of tubing and casing was given by extrapolation method combining actual condition.The analysis result showed,in the tubing and casing of 5 wells,the corrosion rates was 2.56 mm/a^3.44 mm/a in those anticorrosive steel was not being used and in contrast that was below 0.175 mm/a in those anticorrosive steel was used.
作者
孟瑄
和鹏飞
岳家平
于忠涛
袁洪水
袁则名
MENG Xuan;HE Pengfei;YUE Jiaping;YU Zhongtao;YUAN Hongshui;YUAN Zeming(CNOOC Energy Technology&Service Ltd.,Tianjin 300452,China;CNOOC Research Institute Co.,Ltd.,Beijing 100028,China)
出处
《石油化工应用》
CAS
2020年第10期40-43,共4页
Petrochemical Industry Application
基金
国家科技重大专项“海外重点油气田开发钻采关键技术”部分研究内容,项目编号:2017ZX05032-04。
关键词
渤海湾
油套同压
腐蚀速率
油管腐蚀
套管腐蚀
Bohai Bay
the same pressure of tubing and casing
corrosion rate
tubing corrosion
casing corrosion
