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由脂肪醇出发，制备溴代烷，再与二甲胺进行反应，所合成的溴化二辛基二甲铵是新型，高效油田注水杀菌剂，其杀菌效果不低于国外同类产品杀菌剂（如双C8～10烷基氯化铵）．在较低浓度下，如使用浓度为25mg／L时，对硫酸盐还原菌的杀菌率达100％，其杀菌效果优于1227杀菌剂。此外，该新型杀菌剂的合成方法具有步骤少、工艺简单、原料易得、生产成本低等优点。因此，该新型杀菌剂有望成为目前油田广泛使用的1227杀菌物的替代品．
Starting from fatty alcohols, the preparation of alkyl bromide, and then reacted with dimethyl amine, the synthesis of dioctyl dimethyl ammonium bromide is a new type of high efficiency oilfield water disinfectant, the bactericidal effect of not less than similar foreign fungicides Such as double C8 ~ 10 alkyl ammonium chloride). At a lower concentration, the bactericidal effect on sulfate-reducing bacteria was 100% at a concentration of 25 mg / L, which was superior to 1227 bactericide. In addition, the method for synthesizing the novel bactericide has the advantages of less steps, simple process, easily obtained raw materials and low production cost. Therefore, the new bactericide is expected to become the 1227 bactericide widely used in the oil field.