Microbial diversity in long-term water-flooded oil reservoirs with different in situ temperatures in China

Zhang, Fan; She, Yuanbin; Chai, Lujun; Banat, Ibrahim M.; Zhang, Xiaotao; Shu, Fuchang; Wang, Zhengliang; Yu, Liang; Hou, Dujie

doi:10.1038/srep00760

Cited by 63 publications

(43 citation statements)

References 36 publications

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“…Geoalkalibacter subterraneus was isolated from production waters fluids (Greene et al 2009). Clones related to Desulfuromonas, Desulfuromusa, and Pelobacter species were detected as significant proportions of microbial populations in saline produced waters (Zapata-Penasco et al 2012;Zhang et al 2012). The presence of these bacteria in reservoirs may represent a problem for oil recovery and quality.…”

Section: Ecologymentioning

confidence: 96%

The Family Desulfuromonadaceae

Greene

2014

The Prokaryotes

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Section: Ecologymentioning

confidence: 96%

The Family Desulfuromonadaceae

Greene

2014

The Prokaryotes

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“…Members of the family Desulfovibrionaceae and Desulfobacteriaceae were retrieved from mesothermic oil reservoirs [36][37][38][39], while Desulfotomaculum and Desulfobacter spp. were the most dominant in four Chinese hot petroleum reservoirs [40].…”

Section: The Sulfate-reducing Prokaryotesmentioning

confidence: 99%

8. Petroleum: from formation to microbiology

Ollivier¹,

Borgomano²,

Oger³

2014

Microbial Life of the Deep Biosphere

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Economic petroleum accumulations result from the migration in the lithosphere of hydrocarbons formed by the maturation of kerogen. This is a long-term process mainly controlled by temperature and pressure conditions that depend on the geological evolution of the hosting sedimentary basin.Cultural and molecular approaches both reveal that petroleum reservoirs are inhabited by a wide range of mesophilic and thermophilic/hyperthermophilic anaerobic microorganisms able to ferment or oxidize their substrates. Among them sulfatereducing prokaryotes and methanoarchaea are recognized as important contributors to the geomicrobiology of these ecosystems because of their hydrogenotrophic and/or acetoclastic nature. Some of them together with members of the Thermotogales, and other fermentative prokaryotes are considered as indigenous to oil reservoirs. Taking into account the high microbial metabolic diversity existing in oil reservoirs, we may expect the activity of many of these oilfield microorganisms to be of interest in enhancing oil recovery in the next future. Petroleum formationPetroleum is a general term for a mixture of hydrocarbons that exist naturally on Earth in gaseous (natural gas), liquid (crude oil) and solid (asphalt) states and are characterized by density lower than that of water [1]. Typical compounds of petroleum contain carbon and hydrogen (C H ) with small amounts of oxygen, nitrogen and sulfur.Petroleum occurs generally in sedimentary rocks formed under marine or terrestrial environments and buried in the external envelop of the lithosphere ( Fig. 8.1 (a)). Its complex nature is evidenced by the high numbers (> 1000) of hydrocarbon species that have been identified since petroleum exploitation started in the 19 ℎ century [2]. Under natural conditions, petroleum gas is composed by saturated hydrocarbons (alkanes) with one to three carbon atoms. Petroleum oil is a complex mixture of alkanes with more than four carbon atoms, such as paraffin, cyclo-alkanes and aromatics [3]. Sulfur, nitrogen and oxygen can be present in oil within complex organic molecules such as resins and asphalts. The presence of biomarkers in petroleum (e.g. elements of chlorophyll or cellulose for example) demonstrated the organic origin of oil and gas despite ancient but famous inorganic theories by Porfir'ev [4] and Gold and Soter [5]. Brought to you by | Stockholms Universitet Authenticated Download Date | 8/25/15 7:03 AM Brought to you by | Stockholms Universitet Authenticated Download Date | 8/25/15 7:03 AM 8.2 Petroleum formation | 163Petroleum formation can be considered as a set of physico-chemico-biological processes within the general organic carbon cycle on Earth, from life, built with elementary chemical components (C,H,O,N), to the production of organic matter and its ultimate decomposition into chemical elements taken by life, thus looping the cycle [6]. This cycle operates in the external Earth envelops, under the influence of solar and earth mantel energy, and can be separated in several interacting subcycles wit...

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“…; Zhang et al. ). It is also well known that P. stutzeri possesses high physiological and genetic diversity which results from high rate genetic mutations, transpositions, and recombinations easily occurring in local natural environments (Ginard et al.…”

Section: Introductionmentioning

confidence: 98%

Genomovar assignment of Pseudomonas stutzeri populations inhabiting produced oil reservoirs

et al. 2014

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Oil reservoirs are specific habitats for the survival and growth of microorganisms in general. Pseudomonas stutzeri which is believed to be an exogenous organism inoculated into oil reservoirs during the process of oil production was detected frequently in samples from oil reservoirs. Very little is known, however, about the distribution and genetic structure of P. stutzeri in the special environment of oil reservoirs. In this study, we collected 59 P. stutzeri 16S rRNA gene sequences that were identified in 42 samples from 25 different oil reservoirs and we isolated 11 cultured strains from two representative oil reservoirs aiming to analyze the diversity and genomovar assignment of the species in oil reservoirs. High diversity of P. stutzeri was observed, which was exemplified in the detection of sequences assigned to four known genomovars 1, 2, 3, 20 and eight unknown genomic groups of P. stutzeri. The frequent detection and predominance of strains belonging to genomovar 1 in most of the oil reservoirs under study indicated an association of genomovars of P. stutzeri with the oil field environments.

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Microbial diversity in long-term water-flooded oil reservoirs with different in situ temperatures in China

Cited by 63 publications

References 36 publications

The Family Desulfuromonadaceae

The Family Desulfuromonadaceae

8. Petroleum: from formation to microbiology

Genomovar assignment of Pseudomonas stutzeri populations inhabiting produced oil reservoirs

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