A High Efficient Antimicrobial and Corrosion Inhibitor in High-Salinity Oilfield Reinjection Water

The scale of reinjection pipeline in high-salinity oilfield in Northwest China was serious, many kinds of bactria bred, and there was serious corrosion under scale.In order to reduce bacterial corrosion to the oilfield reinjection water pipe , a kind of high efficient antimicrobial and corrosion inh...

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Bibliographic Details
Published inCai liao bao hu Vol. 54; no. 1; pp. 116 - 120
Main Author WEI Xiao-jing, SHI Xin, REN Tian-hui, ZENG Wen-guang, LIU Dong-mei
Format Journal Article
LanguageChinese
Published Editorial Department of Materials Protection 01.01.2021
Subjects
high salinity; d-amino acid; adherent-type saprophytic bacteria; antimicrobial and corrosion inhibitor
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Summary:The scale of reinjection pipeline in high-salinity oilfield in Northwest China was serious, many kinds of bactria bred, and there was serious corrosion under scale.In order to reduce bacterial corrosion to the oilfield reinjection water pipe , a kind of high efficient antimicrobial and corrosion inhibitor was developed.Through the combination of antimicrobial di-decyl dimethyl ammonium chloride and several kinds of D-amino acid, it was realized with sterilization rate all higher than 96% for saprophytic bacteria which attached to scale, iron bacteria and sulfate reducing bacteria which attached to scale.Besides, the effect of time and temperature on the sterilization rate of the combined antimicrobial was investigated.Results showed that the sterilizing rate of this kind of combined antimicrobial increased as the sterilizing time lengthened and reached nearly 100% after 12 h.In saline solution with temperatures ranging from 40 ℃ to 70 ℃, the sterilizing rates were higher than 97.5%, showing an excellent stabi
ISSN:1001-1560
DOI:10.16577/j.cnki.42-1215/tb.2021.01.020