differences in microbial community composition between injection and production water samples of water flooding petroleum reservoirs

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ID: 239522
2015
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Abstract
Microbial communities in injected water are expected to have significant influence on those of reservoir strata in long-term water flooding petroleum reservoirs. To investigate the similarities and differences in microbial communities in injected water and reservoir strata, high-throughput sequencing of microbial partial 16S rRNA of the water samples collected from the wellhead and downhole of injection wells, and from production wells in a homogeneous sandstone reservoir and a heterogeneous conglomerate reservoir were performed. The results indicate that a small number of microbial populations are shared between the water samples from the injection and production wells in the sandstone reservoir, whereas a large number of microbial populations are shared in the conglomerate reservoir. The bacterial and archaeal communities in the reservoir strata have high concentrations, which are similar to those in the injected water. However, microbial population abundance exhibited large differences between the water samples from the injection and production wells. The number of shared populations reflects the influence of microbial communities in injected water on those in reservoir strata to some extent, and show strong association with the unique variation of reservoir environments.
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gao2015biogeosciencesdifferences Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;P. K. Gao;P. K. Gao;G. Q. Li;G. Q. Li;H. M. Tian;H. M. Tian;Y. S. Wang;Y. S. Wang;H. W. Sun;T. Ma;T. Ma
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Year 2015
DOI
10.5194/bg-12-3403-2015
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