DBT parameters and dynamic monitoring during reservoir development, and distribution region prediction of remaining oil: A case study on the Sha-33 oil reservoir in the Liubei region, Nanpu sag

Xu, Ying; Wang, Tieguan; Chen, Nengxue; Yang, Changchun; Wang, QiaoLi

doi:10.1007/s11430-012-4537-6

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…4-Methyldibenzothiophene (4-MDBT) is the most abundant compound among the tricyclic sulphur aromatics for various crude oils and sedimentary organic matter (Hegazi et al, 2004). Shielded molecules, 4-alkyl dibenzothiophene and 6-alkyl dibenzothiophene isomers, are relatively difficult to form hydrogen bonds (Xu et al, 2012). The semi-shielded or shielded molecules (4-MDBT and 4,6-DMDBT) increased relatively, leading to an increase in the value of 4-/1-DBT and 4,6-/1,4-DMDBT.…”

Section: Alkyldibenzothiophene Isomersmentioning

confidence: 99%

Biodegradation of marine oil spill residues using aboriginal bacterial consortium based on Penglai 19-3 oil spill accident, China

Wang

Xing

Guo

et al. 2018

Ecotoxicology and Environmental Safety

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Bioremediation, mainly by indigenous bacteria, has been regarded as an effective way to deal with the petroleum pollution after an oil spill accident. The biodegradation of crude oil by microorganisms co-incubated from sediments collected from the Penglai 19-3 oil platform, Bohai Sea, China, was examined. The relative susceptibility of the isomers of alkylnaphthalenes, alkylphenanthrenes and alkyldibenzothiophene to biodegradation was also discussed. The results showed that the relative degradation values of total petroleum hydrocarbon (TPH) are 43.56% and 51.29% for sediments with untreated microcosms (S-BR1) and surfactant-treated microcosms (S-BR2), respectively. TPH biodegradation results showed an obvious decrease in saturates (biodegradation rate: 67.85-77.29%) and a slight decrease in aromatics (biodegradation rate: 47.13-57.21%), while no significant difference of resins and asphaltenes was detected. The biodegradation efficiency of alkylnaphthalenes, alkylphenanthrenes and alkyldibenzothiophene for S-BR1 and S-BR2 samples reaches 1.28-84.43% and 42.56-86.67%, respectively. The efficiency of crude oil degradation in sediment with surfactant-treated microcosms cultures added Tween 20, was higher than that in sediment with untreated microcosms. The biodegradation and selective depletion is not only controlled by thermodynamics but also related to the stereochemical structure of individual isomer compounds. Information on the biodegradation of oil spill residues by the bacterial community revealed in this study will be useful in developing strategies for bioremediation of crude oil dispersed in the marine ecosystem.

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Section: Alkyldibenzothiophene Isomersmentioning

confidence: 99%

Biodegradation of marine oil spill residues using aboriginal bacterial consortium based on Penglai 19-3 oil spill accident, China

Wang

Xing

Guo

et al. 2018

Ecotoxicology and Environmental Safety

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“…Additionally, the content of heteroatoms in the produced oil increases during the water ooding process, forming compounds such as dibenzothiophene, which is considered a signature compound. [15][16][17][18] In the late stage of development, the content of low molecular hydrocarbons in the produced oils decreases with the increase in the recovery factor. Water ooding signicantly modies the distribution of bicyclic aromatics, but only has little effect on the composition of polycyclic aromatic compounds with three or more aromatic rings.…”

Section: Introductionmentioning

confidence: 99%