Abstract:
:With the development of molecular ecology, increasing low-abundance microbial populations were detected in oil reservoirs. However, our knowledge about the oil recovery potential of these populations is lacking. In this study, the oil recovery potential of low-abundance Dietzia that accounts for less than 0.5% in microbial communities of a water-flooding oil reservoir was investigated. On the one hand, Dietzia sp. strain ZQ-4 was isolated from the water-flooding reservoir, and the oil recovery potential was evaluated from the perspective of metabolisms and oil-displacing test. On the other hand, the strain has alkane hydroxylase genes alkB and P450 CYP153 and can degrade hydrocarbons and produce surfactants. The core-flooding test indicated that displacing fluid with 2% ZQ-4 fermentation broth increased 18.82% oil displacement efficiency, and in situ fermentation of ZQ-4 increased 1.97% oil displacement efficiency. Furthermore, the responses of Dietzia in the reservoir accompanied by the nutrient stimulation process was investigated and showed that Dietzia in some oil production wells significantly increased in the initial phase of nutrient injection and sharply decreased along with the continuous nutrient injection. Overall, this study indicates that Dietzia sp. strain has application potential for enhancing oil recovery through an ex situ way, yet the ability of oil recovery in situ based on nutrient injection is limited.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Gao P,Wang H,Li G,Ma Tdoi
10.1155/2019/2193453subject
Has Abstractpub_date
2019-10-02 00:00:00pages
2193453eissn
2314-6133issn
2314-6141journal_volume
2019pub_type
杂志文章abstract::Long-term application and extensive use of synthetic insecticides have resulted in accumulating their residues in food, milk, water, and soil and cause adverse health effects to human and ecosystems. Therefore, application of natural insecticides in agriculture and public health sectors has been increased as alternati...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2018/4308054
更新日期:2018-10-16 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
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更新日期:2018-01-09 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/875438
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/7084734
更新日期:2019-02-28 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
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journal_title:BioMed research international
pub_type: 杂志文章,评审
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pub_type: 杂志文章
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更新日期:2019-11-25 00:00:00
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pub_type: 杂志文章
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journal_title:BioMed research international
pub_type: 杂志文章
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pub_type: 杂志文章,评审
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2013/929531
更新日期:2013-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/3698742
更新日期:2019-04-11 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/189197
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,meta分析
doi:10.1155/2013/210253
更新日期:2013-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/7243909
更新日期:2017-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/8812157
更新日期:2020-11-05 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2013/849819
更新日期:2013-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/8428304
更新日期:2019-12-03 00:00:00
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
doi:10.1155/2015/198476
更新日期:2015-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1155/2020/9358989
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pub_type: 杂志文章,评审
doi:10.1155/2019/1275491
更新日期:2019-04-02 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/1238581
更新日期:2019-06-02 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/429198
更新日期:2014-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1155/2020/9262170
更新日期:2020-10-22 00:00:00
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journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2014/481019
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/8065765
更新日期:2016-01-01 00:00:00
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pub_type: 临床试验,杂志文章
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更新日期:2014-01-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.1155/2014/913696
更新日期:2014-01-01 00:00:00