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研究了油田注水井中分离的硫酸盐还原菌（ＳＲＢ）的生长特性．结果表明：ＳＲＢ菌株不是严格的厌氧菌，它能耐受４．５ｍｇ／Ｌ浓度的溶解氧，但在９．０ｍｇ／Ｌ的高溶解氧浓度下不能生长．ＮａＣｌ浓度小于０．８１８％时ＳＲＢ可正常生长，在０．９７２％－２．２８％时只能在水下沉积物中生长，大于２．４５％时生长完全受到抑制．铁离子浓度增大，ＳＲＢ代谢活力增强，生长高峰期延长，Ｆｅ２＋限制ＳＲＢ生长的浓度下限为小于６．８ｍｇ／Ｌ，高Ｆｅ２＋浓度对ＳＲＢ生长无抑制作用．厌氧环境下ＳＲＢ生长的适宜ｐＨ为６．５－７．５，ｐＨ小于５．５或大于８．０时ＳＲＢ不能生长；有氧环境下ＳＲＢ在ｐＨ８－８．５时仍能生存乃至增殖．
The growth characteristics of sulfate-reducing bacteria (SRB) isolated from injection wells in oilfields were studied. The results showed that SRB was not a strictly anaerobic bacterium. It could tolerate dissolved oxygen at a concentration of 4.5 mg / L, but could not grow at high dissolved oxygen concentration of 9.0 mg / L. When NaCl concentration was less than 0.818%, SRB could grow normally. Under 0.972% -2.28%, SRB could only grow in underwater sediment. When it was more than 2.45%, growth was inhibited completely. The concentration of iron ion increased, the metabolic activity of SRB increased, the peak of growth was prolonged, the lower limit of Fe2 + concentration was less than 6.8mg / L, and the high concentration of Fe2 + did not inhibit the growth of SRB. SRB growth in anaerobic environment is suitable for pH 6.5-7.5, SRB can not grow when pH is less than 5.5 or more than 8.0; SRB can survive and even proliferate at pH8-8.5 under aerobic conditions .