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Research on paraffin removal and prevention by <italic>Bacillus</italic> spp. in high-salinity reservoirs.
- Source :
- Petroleum Science & Technology; 2018, Vol. 36 Issue 12, p889-897, 9p
- Publication Year :
- 2018
-
Abstract
- Problems in paraffin deposition occur frequently in oil exploitation. Considering the problem that some paraffin removal and prevention strains cannot grow in high-salinity reservoirs, we domesticated four salt-tolerant laboratory bacterial strains. Crude oil emulsification effect, paraffin removal rate, and paraffin prevention rate of the strains were evaluated. KB and JH-A strains exhibited good paraffin removal and prevention effects, with paraffin removal rates of 51.82% and 81.56%; and 51.82% and 80.90%, respectively. Gas chromatography mass spectrometry analysis of paraffin components before and after biodegradation was performed on KB and JH-A strains. Results showed that relative contents of n-alkanes between C15-C23 and C27-C30 evidently decreased, indicating their good biodegradation. This technique provides a new method for practical application of paraffin removal and prevention in high-salinity reservoirs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10916466
- Volume :
- 36
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Petroleum Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 129156972
- Full Text :
- https://doi.org/10.1080/10916466.2018.1451888