The Molecular Ecology Analysis of Microbial Communities in LuLiang Oil Field

Abstract:

The molecular ecology analysis of microorganisms is important for the development of microbial enhanced oil recovery. The bacterial 16S rRNA gene clone library was constructed to detect the community diversity in injection-water and produced-water in Luliang Oil field in Xinjiang in this study. The phylogenetic analysis indecated that most of clones (76%) in injection-water were clustered in α-proteobacteria. Roseovarius sp. and Novispirillum sp. were the main bacteria accounting for 41.3% of the total of clones. And the most clones in production water were clustered in α,γ-proteobacteria with the phylotypes belonging to α-proteobacteria accounting for 61% of the clone library. Sphingomonas sp. and Pseudomonas stutzeri sp. were the dominant bacteria which constitute 26% and 22%. The variaty of functional bacteria is more in produced-water than injection-water.

• Periodical: Applied Mechanics and Materials (Volume 507)
• Pages: 810-816
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.507.810
• Online since: January 2014
• Authors: Li Na Yi*, Yuan Dong Ma, Qing Feng Cui, Li Yu
• Keywords: 16S Rdna Library, Bacteria Community, Enhancing Oil Recovery, Indigenous Microorganism, Injection well, Oil Well

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