某油田电泵井J55油管螺纹丝扣腐蚀失效分析  

Corrosion failure analysis of J55 tubing thread fastener for an electric pump well in an oil field

作　　者：周雄[1] 齐亚猛[2] ZHOU Xiong;QI Yameng(Tube Pipe & Bar Business Unit,Baoshan Iron & Steel Co. ,Ltd. , Shanghai 201900, China;Research Institute,Baoshan Iron & Steel Co. ,Ltd. , Shanghai 201999, China)

机构地区：[1]宝山钢铁股份有限公司钢管条钢事业部,上海201900 [2]宝山钢铁股份有限公司中央研究院,上海201999

出　　处：《宝钢技术》2021年第2期54-58,共5页Baosteel Technology

摘　　要：某油田电泵井J55油管外螺纹处发生腐蚀穿孔失效。从理化性能、腐蚀产物、微生物分析等方面进行了系统分析,结果表明:J55油管金相组织和成分均正常,CO_(2)腐蚀不是螺纹腐蚀刺漏的主要原因,硫酸盐还原菌(SRB)、腐生菌(TGB)和铁细菌(FEB)微生物腐蚀是导致螺纹腐蚀穿孔失效的主要原因。Corrosion failure of J55 tubing thread fastener occurred in an electric pump well.Corrosion failure reasons were investigated through physical and chemical properties,corrosion products and microbial analysis.The results showed that metallographic structure and composition of J55 tubing were normal.CO_(2) corrosion was not the main reason for thread fastener failure.The real reason for corrosion failure was microbiological corrosion,such as SRB,TGB,FEB.

关 键 词：电泵井 油管螺纹 腐蚀穿孔 微生物腐蚀 失效分析 

分 类 号：TG142.41[一般工业技术—材料科学与工程]