化学杀菌剂处理油田回注水的应用研究  

Research on Treating Oilfield Injection Water with Chemical Bactericide

作　　者：李战[1] 李坤[1] 樊萍[1] 

机构地区：[1]大庆市环境监测中心站,黑龙江大庆163316

出　　处：《黑龙江环境通报》2010年第3期67-71,共5页Heilongjiang Environmental Journal

摘　　要：目前油田进行的二次采油,需要向油井注入大量的回注水。回注水管道中含有大量硫酸盐还原菌(SRB)、腐生菌(TGB)和铁细菌(FB)等,其生长、代谢和繁殖易引起金属管道腐蚀,影响了油田正常生产。本文选取大庆油田回注水,用化学杀菌剂进行处理。结果表明化学杀菌剂处理油田回注水的合适应用条件是:pH值为5.0～9.5;对聚驱水采用异噻唑啉酮,采用均匀式加药方式,投加量为120mg/L,每3天加药一次;对水驱采用1227-异噻唑啉酮,每15天冲击加药一次,投加量为80mg/L。在此条件下,对于聚驱水杀菌率硫酸盐还原菌为99.99%,腐生菌和铁细菌100%;对于水驱水杀菌率硫酸盐还原菌可达100%,腐生菌99.99%,铁细菌99.99%。Along with the development of the petroleum industry,many oil fields are using secondary oil recovery.Secondary oil recovery needs to inject water into large number of wells.Injection water pipeline contains large amounts of SRB,TGB and FB.So the growth,metabolism and reproduction of these bacteria can lead to corrosion of metal pipes and affect normal production of the oilfield.We treated injection water in Daqing oilfield with chemical bactericide.The experimental results show that the appropriate operati...

关 键 词：硫酸盐还原菌 杀菌剂 油田回注水 

分 类 号：TE357.61[石油与天然气工程—油气田开发工程]