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Whole metagenome of injected and produced fluids reveal the heterogenetic characteristics of the microbial community in a water-flooded oil reservoir
Song, Zhiyong; Chen, Songcan; Zhao, Fengmin; Zhu, Weiyao
2019-05
Source PublicationJOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
ISSN0920-4105
Volume176Pages:1198-1207
AbstractIn order to understand the subsurface microbial community and how it functions in a water-flooded reservoir, the whole metagenome of fluids from production and injection wells were sequenced using next-generation sequencing and then compared. Gene function was annotated by the Kyoto Encyclopedia of Genes and Genomes (KEGG), evolutionary genealogy of genes: Non-supervised Orthologous Groups (eggNOG) and hydrocarbon degradation databases. More biomass was detected in fluid from the injection well than in the production well. As a typical water-flooded reservoir, injection and production communities were dominated by Proteobacteria. In the production metagenome, more genes involved in denitrification and hydrocarbons utilization pathways, reflecting the strict anaerobic and oil-rich conditions in reservoirs. The higher abundance of genes responsible for methyl chemotaxis, aerotaxis and flagella indicate that the community in reservoirs is motivated to access limited nutrients and electron acceptors. Combined with knowledge of porous flow, these metagenome results indicate that the microbial communities detected in produced fluids are actually derived from different habitats in the reservoir, which are established by the chromatographic effect of reservoir flooding. Furthermore, diverse flow patterns at pore scale could affect in situ proliferation and syntrophy between species, which could considerably shift the microbial composition in produced fluids.
Department土壤环境科学与技术实验室
KeywordSubsurface environment Oil reservoir Whole metagenome Porous media Microbial community
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43320
Collection土壤环境科学实验室
Affiliation1.Univ Sci & Technol Beijing, Sch Civil Resource Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
3.Shengli Oil Field Ltd Co, SinoPEC, Res Inst Petr Engn, Dongying 257000, Peoples R China
Recommended Citation
GB/T 7714
Song, Zhiyong,Chen, Songcan,Zhao, Fengmin,et al. Whole metagenome of injected and produced fluids reveal the heterogenetic characteristics of the microbial community in a water-flooded oil reservoir[J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2019,176:1198-1207.
APA Song, Zhiyong,Chen, Songcan,Zhao, Fengmin,&Zhu, Weiyao.(2019).Whole metagenome of injected and produced fluids reveal the heterogenetic characteristics of the microbial community in a water-flooded oil reservoir.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,176,1198-1207.
MLA Song, Zhiyong,et al."Whole metagenome of injected and produced fluids reveal the heterogenetic characteristics of the microbial community in a water-flooded oil reservoir".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 176(2019):1198-1207.
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