摘要
本实验选择了 5个油田 (包括江汉、吉林、长庆、胜利和宝浪 )采油厂污水中硫酸盐还原菌作为种源 ,在培养基中采用静态挂片测其平均腐蚀速度 ,细菌新陈代谢产物及腐蚀产物的分析借助于气相色谱 /质谱联用技术 (GC/MS)及X衍射 (XRD)。结果表明 ,细菌腐蚀行为的差异与细菌本身的活性有关 ,细菌的种群不同 ,新陈代谢产生的有机酸不同 ,其中活性高的硫酸盐还原菌代谢产物以丙酸为主 ,细菌腐蚀也最严重 ,其余的以丁酸为主 ;有机酸种类不同是导致腐蚀行为存在差异的关键。
To evaluate the resistance to microbial attack of the carbon steel (CS), five strains of sulfate reducing bacteria (SRB) are isolated from Jianghan, Jilin, Changqing, Shengli and Baolang of Xinjiang oilfields by using a common media. The metabolites of five SRB strains are successfully extracted from the culture media and analyzed by gas chromatography, mass spectrometry and XRD. The analytic results show that they have different fatty acid biomarkers. The effects of five SRB strains are assessed. The results indicate that the resistance to microbiological induced corrosion (MIC) of CS has relation with the strains. The different SRB strains have different activity and different metabolites, which play important roles in the process of MIC.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
2000年第1期30-31,52,共3页
Chemical engineering of oil & gas
