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| Titel |
Differences in microbial community composition between injection and production water samples of water flooding petroleum reservoirs |
| VerfasserIn |
P. K. Gao, G. Q. Li, H. M. Tian, Y. S. Wang, H. W. Sun, T. Ma |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 12, no. 11 ; Nr. 12, no. 11 (2015-06-05), S.3403-3414 |
| Datensatznummer |
250117968
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| Publikation (Nr.) |
 copernicus.org/bg-12-3403-2015.pdf |
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| Zusammenfassung |
| 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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