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Degradation of hydrocarbons by indigenous microbial communities from two adjacent oil production wells in one block.
- Source :
-
Energy Sources Part A: Recovery, Utilization & Environmental Effects . 2016, Vol. 38 Issue 23, p3423-3434. 12p. - Publication Year :
- 2016
-
Abstract
- Aerobic acclimatization cultures of oil production water from two adjacent oil production wells (Xi15-14 and Xi51-5) in one block of Dagang oilfield were generated depending on crude oil as the sole carbon source and energy. Both cultures revealed a high degrading efficiency for a wide range of hydrocarbons, but degradation trend were striking different, and surface tension of two phases of oil and water decreased from 60 to 30 mN/m approximately by virtue of indigenous microbial metabolic activities. Meanwhile, cultured indigenous bacteria of wellXi15-14 mainly includedHydrocarboniphaga, Pseudomonas, andEctothiorhodospiraceae bacterium, while wellXi51-5 containedSphingomonasandPseudomonas. Furthermore, abundance of alkane hydroxylase genesalk Bandalk Mfrom the two samples also showed an apparent difference. These findings are important that microbial diversity tightly tallies with the fact of a highly compartmentalized stratigraphy of this oilfield, suggesting that it is better to recover oil from extreme reservoirs with the targeted stimulating indigenous microorganisms. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 15567036
- Volume :
- 38
- Issue :
- 23
- Database :
- Academic Search Index
- Journal :
- Energy Sources Part A: Recovery, Utilization & Environmental Effects
- Publication Type :
- Academic Journal
- Accession number :
- 119026340
- Full Text :
- https://doi.org/10.1080/15567036.2014.943853