A thermophilic nitrate-reducing bacterium isolated from production water of a high temperature oil reservoir and its inhibition on sulfate-reducing bacteria

Jin Feng Liu, Wei Lin Wu, Feng Yao, Biao Wang, Bing Liang Zhang, Serge Maurice Mbadinga, Ji Dong Gu, Bo Zhong Mu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A thermophilic spore-forming facultative anaerobic bacterium, designated as Njiang2, was isolated from the production water of a high temperature oil reservoir (87°C). The physiological, biochemical and 16S rRNA gene based phylogenetic analysis indicated that Njiang2 belonged to the genus Anoxybacillus. Njiang2 could significantly inhibit H2S production when co-cultured with Desulfotomaculum sp under laboratory conditions, which implied its great potential in mitigation of brine souring in the oil reservoir and in control of biocorrosion caused by sulfate-reducing bacteria. As far as we know, this might be the first report of Anoxybacillus sp. isolated from high temperature oilfield.

Original languageEnglish
Pages (from-to)35-42
Number of pages8
JournalApplied Environmental Biotechnology
Volume2
Issue number1
DOIs
StatePublished - 2017

Keywords

  • 16S rRNA gene analysis
  • Anoxybacillus
  • Microbial influenced corrosion
  • Nitrate-reducing bacterium
  • Souring mitigation
  • Thermophilic

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