Aiming at the problem of SRB bacteria meeting the standard in the reinjection water of an oilfield in the eastern part of the South China Sea,a variety of fungicides were screened and evaluated on site,and the fungicides NFSG-018 and NFSG-021 were preferred,and the on-site sterilization performance results showed that when the concentration of the additive was 200mg/L,the fungicides NFSG-018 and NFSG-021 could completely kill SRB bacteria,and the sterilization rate reached 100%.The compatibility results showed that the addition of fungicide did not have a significant effect on the demulsification effect of NHP and the water effect of water demulsifier NHQ.The high and low temperature stability results showed that the appearance of the fungicides NFSG-018 and NFSG-021 did not change significantly after being placed at 5℃and 50℃for 72h,respectively.The self-corrosion results showed that the average corrosion rate of the fungicide NFSG-018 to 316 steel was 0.0015mm/a,and the corrosion rate of the fungicide NFSG-021 sample to 316 steel was 0.0071mm/a,which was much lower than the industry standard of 0.076mm/a.
关键词
南海油田/SRB细菌/杀菌剂/筛选优化/现场评价
Key words
south china sea oilfield/SRB bacteria/germicide/screening optimization/on-site evaluation
维普
万方数据