控制油田回注水中硫酸盐还原菌数量的有效方法  

Effective Method for Controlling Quantity of Sulfate Reducing Bacteria in Oilfield Reinjection Water

作　　者：代齐加 徐学智 肖宇 DAI Qijia;XU Xuezhi;XIAO Yu(Tianjin Branch,CNOOCLtd.,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《天津科技》2020年第5期38-39,42,共3页Tianjin Science & Technology

摘　　要：某油田回注水的硫酸盐还原菌(SRB)数量偶有超标,SRB产生的代谢与腐蚀产物具有腐蚀流程设备和井下管柱、堵塞地面管线和地下油层、降解生产污水系统化学药剂等危害。通过分析SRB数量超标的原因,采取优选杀菌剂、改造杀菌剂加注点等措施,有效削弱了SRB的抗药性,解决了杀菌剂注入不及时、针对性不强、化学反应时间短的问题,有效抑制了SRB的繁殖与聚集,消除了SRB数量超标的危害。The quantity of sulfate reducing bacteria(SRB)in reinjection water of an oilfield occasionally exceeds the standard.The metabolites and corrosion products produced by SRB have the hazards of corroding process equipment and downhole strings,blocking surface pipeline and underground oil layer and degrading chemical agents in production wastewater system.By analyzing the reasons for the excessive amount of SRB,measures such as optimizing the selection of bactericides and modifying the injection points of bactericides were taken to effectively weaken the resistance of SRB,and solve the problems of untimely injection of bactericides,weak pertinence and short chemical reaction time.The reproduction and aggregation of SRB were controlled,and the harm of excessive amount of SRB was eliminated.

关 键 词：硫酸盐还原菌(SRB) 数量 超标 杀菌剂评选 流程改造 

分 类 号：TE357.61[石油与天然气工程—油气田开发工程]