Influences of microbial community structures and diversity changes by nutrients injection in Shengli oilfield, China

Wang, Xingbiao; Yanfen, Xue; Yuan, Sheng; Zhi-yong, Huang; Ma, Yanhe

doi:10.1016/j.petrol.2015.06.020

Cited by 16 publications

(5 citation statements)

References 32 publications

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“…Wang et al . found that in situ nutrient injection had impact on MEOR and microbial diversity 10 . The microbial diversity in low salinity level oil reservoir was much more abundant than that in high salinity level oil reservoir 8 .…”

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confidence: 97%

“…The microbial diversity in low salinity level oil reservoir was much more abundant than that in high salinity level oil reservoir 8 . After nutrient injection, some advantaged microbes, such as pseudomonas, Ochrobactrum, Alcaligenes and some methane producing archaea, had enormously increase 10 11 12 . The composition of nutrient determined what kind of species could be stimulated.…”

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confidence: 99%

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Analysis of bacterial diversity in two oil blocks from two low-permeability reservoirs with high salinities

Meng

Sun

Zhang

et al. 2016

Sci Rep

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The community diversities of two oil reservoirs with low permeability of 1.81 × 10−3 and 2.29 × 10−3 μm2 in Changqing, China, were investigated using a high throughput sequencing technique to analyze the influence of biostimulation with a nutrient activator on the bacterial communities. These two blocks differed significantly in salinity (average 17,500 vs 40,900 mg/L). A core simulation test was used to evaluate the effectiveness of indigenous microbial-enhanced oil recovery (MEOR). The results indicated that in the two high salinity oil reservoirs, one reservoir having relatively lower salinity level and a narrow salinity range had higher bacterial and phylogenetic diversity. The addition of the nutrient activator increased the diversity of the bacterial community structure and the diversity differences between the two blocks. The results of the core simulation test showed that the bacterial community in the reservoir with a salinity level of 17,500 mg/L did not show significant higher MEOR efficiency compared with the reservoir with 40,900 mg/L i.e. MEOR efficiency of 8.12% vs 6.56% (test p = 0.291 > 0.05). Therefore, salinity levels affected the bacterial diversities in the two low permeability oil blocks remarkably. But the influence of salinity for the MEOR recovery was slightly.

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confidence: 97%

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confidence: 99%

Analysis of bacterial diversity in two oil blocks from two low-permeability reservoirs with high salinities

Meng

Sun

Zhang

et al. 2016

Sci Rep

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“…Many studies have shown the importance of metagenomic sequencing in various ways. Amplicon sequencing [Allen et al, 2007, Zhang et al, 2012, Silva et al, 2013, denaturing gradient gel electrophoresis (DGGE) and terminal restriction fragment length polymorphism (t-RFLP) and has been reported to assess degrading communities of contaminated sites [Xingbiao et al, 2015]. Community profiling of aromatic and oildegrading microbes with stable isotope probing (SIP)(M.G.…”

Section: Role Of In-silico Approach In Assessing Bioremediation At Th...mentioning

confidence: 99%

Bioremediation of Recalcitrant Xenobiotic Compounds: Advancements and Challenges

Kumar Singh,

Negi,

Verma

2023

Microsphere

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Widespread recalcitrant xenobiotic compounds have posed serious environmental threats. These compounds are known to contaminate groundwater, crops, water bodies, and lands, affecting the lives of people living nearby. Sites polluted with organic contaminants like polycyclic aromatic hydrocarbons (PAHs), chlorinated hydrocarbons (CHC), phenols, and aromatic hydrocarbons (benzene-toluene-ethylbenzene-xylenes, BTEX) are located worldwide, in both developed and developing countries. Many pollutants have been classified as persistent organic pollutants (POPs) whose production and usage have been either limited or banned by the Stockholm Convention. In May 2001, the Stockholm Convention gave a list of 12 POPs and called them “dirty dozens,” which has now increased to 36 POPs. Much advancement has been made in the last decade; however, on-field bioremediation techniques are still not well developed. Detection of ongoing remediation in trials by using metagenomics, metatranscriptomics, metabolomics, and metaproteomics produces huge data sets. These in-silico analyses required efficient algorithms and skilled professionals to contemplate data analyses. Carbon-stable isotope analysis, microarrays, and high-throughput cultivation techniques are also promising methods that have helped researchers track bioremediation. However, challenges faced by the scientific community are numerous, which has affected the pace of advancements in achieving a defined strategy for bioremediation of xenobiotic compounds. This review summarises the need for remediation of recalcitrant xenobiotic compounds that pose a threat to the environment and human health. Also, advancements made in the field of bioremediation and the problems posed in the implementation of designed strategies have been summed up.

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“…Several studies have found the occurrence of the genus Pseudomonas in oil reservoirs [71][72][73][74][75][76][77] , according to Cui et al 78 , Pseudomonas and Acinetobacter are genera that can effectively use crude oil as a carbon source, being able to survive and reproduce at the oil-water interface. Species of the genus Pseudomonas are facultative anaerobes capable of performing nitri cation and nitrate reduction using various carbon substrates 79,80 .…”

Section: Inmentioning

confidence: 99%

Desulfovibrio and Pseudomonas Dominated Enriched Produced Water Reinforcing their Importance in Oilfields and Production Processes

Tiburcio

Macrae

Peixoto

et al. 2020

Preprint

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Enrichment based isolation methods and molecular identification were used to investigate the microbial communities in produced water obtained from Periquito (PQO) and Galo de Campinas (GC) onshore oilfields in Brazil. Produced water was enriched with Postgate B, Postgate C and Baars media and incubated. DNA was extracted, PCR amplified and16S rDNA fragments were sequenced using Illumina TruSEq. 4.2 million reads were analysed and deposited at the Sequence Read Archive at NCBI. No significative differences in microbial community composition could be attributed to the enrichment but significant differences were observed from two oil fields. The dominant Bacterial Orders detected from both oilfields were Desulfovibrionales, Pseudomonadales and Enterobacteriales. Pseudomonas were found predominantly in Periquito oilfield (19.8%) with only 2,4% at Galo de Campinas. Pleomorphominas (3.76%) and Shewanella (4,69%) were exclusive to and possible biomarkers for the Periquito Oilfield. 11.05% and 7.62% of the sequences were not classified at genus level and detected at GC and P. Abundances changed for Desulfovibrio from P, 29.8% at PQO and 16.08% at GC. The Clostridium_sensu_stricto varied from 2.8% at PQO and 2.4% at GC). Pseudomonas were found predominantly in Periquito oilfield (19.8%) with only 2,4% at Galo de Campinas. Pleomorphominas (3.76%) and Shewanella (4,69%) were almost exclusive to and possible biomarkers for the Periquito Oilfield. These data provide a bacterial biodiversity benchmark for future produced water treatment and microbially enhanced oil recovery (MEOR).

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Influences of microbial community structures and diversity changes by nutrients injection in Shengli oilfield, China

Cited by 16 publications

References 32 publications

Analysis of bacterial diversity in two oil blocks from two low-permeability reservoirs with high salinities

Analysis of bacterial diversity in two oil blocks from two low-permeability reservoirs with high salinities

Bioremediation of Recalcitrant Xenobiotic Compounds: Advancements and Challenges

Desulfovibrio and Pseudomonas Dominated Enriched Produced Water Reinforcing their Importance in Oilfields and Production Processes

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