Microbial Communities in Long-Term, Water-Flooded Petroleum Reservoirs with Different in situ Temperatures in the Huabei Oilfield, China
| Autor: | Chang-Qiao Chi, Xiao-Lei Wu, Yan Li, Yue-Qin Tang, Jie-Yu Zhao, Han-Ping Dong, Li-Xin Huang |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Fossil Fuels
China Environmental Engineering Time Factors Molecular Sequence Data lcsh:Medicine Bioengineering Methanothermobacter Microbiology Methanosaeta Environmental Biotechnology RNA Ribosomal 16S Gammaproteobacteria Cluster Analysis Oil and Gas Fields lcsh:Science Biology Phylogeny Gene Library Multidisciplinary Epsilonproteobacteria biology Ecology Bacteria Base Sequence lcsh:R Alphaproteobacteria Temperature biology.organism_classification 16S ribosomal RNA Archaea Energy and Power Petroleum Community Ecology Earth Sciences lcsh:Q Water Microbiology Environmental Sciences Research Article Biotechnology |
| Zdroj: | PLoS ONE PLoS ONE, Vol 7, Iss 3, p e33535 (2012) |
| ISSN: | 1932-6203 |
| Popis: | The distribution of microbial communities in the Menggulin (MGL) and Ba19 blocks in the Huabei Oilfield, China, were studied based on 16S rRNA gene analysis. The dominant microbes showed obvious block-specific characteristics, and the two blocks had substantially different bacterial and archaeal communities. In the moderate-temperature MGL block, the bacteria were mainly Epsilonproteobacteria and Alphaproteobacteria, and the archaea were methanogens belonging to Methanolinea, Methanothermobacter, Methanosaeta, and Methanocella. However, in the high-temperature Ba19 block, the predominant bacteria were Gammaproteobacteria, and the predominant archaea were Methanothermobacter and Methanosaeta. In spite of shared taxa in the blocks, differences among wells in the same block were obvious, especially for bacterial communities in the MGL block. Compared to the bacterial communities, the archaeal communities were much more conserved within blocks and were not affected by the variation in the bacterial communities. |
| Databáze: | OpenAIRE |
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