Distribution of naphthalenes in crude oils from the Java Sea: Source and maturation effects

Radke, M.; Rullkötter, Jürgen; Vriend, S.P.

doi:10.1016/0016-7037(94)90158-9

Cited by 116 publications

(48 citation statements)

References 20 publications

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“…Relative distributions of alkylnaphthalene isomers have been used to obtain information about the thermal maturity of sedimentary rocks, coals and crude oils (Radke et al, 1982a(Radke et al, , 1984(Radke et al, , 1994Alexander et al, 1985). Naphthalenes are known to be widespread constituents of geological materials and believed to have been derived partly from nonaromatic natural precursors such as terpenoids (Chaffee et al, 1984;Hayatsu et al, 1987;Püttman and Villar, 1987;Strachan et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Naphthalenes in Neogene sediments of the Shinjo basin, Japan.

2000

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Naphthalene and its methyl homologs were found in Miocene to Pliocene sediments of the Shinjo basin. The total concentrations of naphthalenes ranged from 26 to 5,700 ng g -1 from the top to the bottom sediments of an about 1,600 m thick sequence. Naphthalenes were mainly distributed in the Kusanagi Formation and their depth profile showed a characteristic feature, indicating a concentration peak at the onset of oil-generation layer. The ratio of 2-to 1-methylnaphthalene as well as the relative abundance of dimethylnaphthalene isomers, except for 1,8-isomer, showed no depth dependence. Therefore, it seems that no significant isomerizations of the naphthalene homologs had occurred during the burial diagenesis around and above the oil-generating zone in the sediments. However, as to the least stable 1,8-dimethylnaphthalene isomer, the negative logarithmic change of the relative abundance of the isomer (Alexander et al., 1984) was observed showing a trend of increasing with depth.

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Section: Introductionmentioning

confidence: 99%

Naphthalenes in Neogene sediments of the Shinjo basin, Japan.

2000

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“…6i) display some fluctuations through the SK-1 sequence with an overall values of less than 1.0 and generally reflect a reduced depositional environment (Peters et al, 2005). widespread occurrence of mPs suggests that they may have multiple sources (Radke et al, 1994). The similar depth trend of the abundances of aNs with the methylated phenanthrenes (Figs.…”

Section: Distribution Comparison Of Long-chain Ans and Selected Biomamentioning

confidence: 61%

“…These include many different polymethylnaphthalene isomers (e.g., Radke et al, 1994;van Aarssen et al, 1992;Puttmann and Villar, 1987;Strachan et al, 1988;Ellis et al, 1996;Forster et al, 1989;Killops, 1991;Alexander et al, 1992Alexander et al, , 1993Bastow et al, 1998) as well as naphthalenes with short-chain alkyl substituents including 6-isopropyl-2-methyl-1-(4-methylpentyl) naphthalene (Ellis, 1994;Ellis et al, 1996;Bastow et al, 1999;van Aarssen et al, 2000). The highly variable sedimentary distribution of polymethyl naphthalenes can be attributed to the interplay of a range of source, thermal maturity and biodegradation effects .…”

Section: Introductionmentioning

confidence: 99%

Occurrence and distribution of series long-chain alkyl naphthalenes in Late Cretaceous sedimentary rocks of the Songliao Basin, China

et al. 2011

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A pair of series straight long-chain 2-and 1-alkyl naphthalenes (aNs) with alkyl chain carbon number up to 30 was detected in late Cretaceous sedimentary source rocks of the onshore Songliao Basin, NE China. Their sedimentary profile was shown to correlate positively with the relative abundances of several higher plant biomarkers including iP-iHMN and phenanthrene and weakly inversely with the relative abundance of alkylbenzenes. In contrast, the aNs distribution shows no relationship with hydrocarbon maturity indicators. The TOC, δ 13 C profile and other molecular features (e.g., CPI, OEP, Pr/Ph, Ga/C 31 H) were consistent with transgressive/regressive water cycles of the palaeo-lake of Songliao Basin. Decreasing Pr/Ph values in the upper horizon indicative of increasingly anoxic conditions. The distinctive occurrence and distribution of the long-chain aN compounds on the profile of the SK-1 borehole may imply some unique source inputs under particular lacustrine environmental conditions.

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“…C 0 -to C 4 -naphthalene may originate from the amyrin and resin of higher plant, or from algae [9] and bacteria [10] . nC 6 -to nC 22 -naphthalene were detected in the aromatic fraction of mud extracts sampled from 894 m depth well Guanzhen sag, China, and found to have a close relation to some special organisms such as algae living in meso-to hypersaline environments [11] .…”

Section: Notes 2 Results and Discussionmentioning

confidence: 99%

Distribution of aromatic biomarkers in pyrolysates of coccolithophore

Zhou

Wang

et al. 2001

Chin.Sci.Bull.

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Analyses of the original and pyrolytic products of coccolithophore at various temperatures suggest that the contribution of coccolithophore to the formation of large immature oil reservoirs should attract keen interest. Through biochemical processes algae can change inorganic sulphur into organic sulphur, which could be one of the most important precursors of organic sulphur compounds in oil and source rocks. When Methylphenanthrene Index (MPI) and Methylphenanthrene Ratio (MPR) indices were used to evaluate the evolution degree of source rocks and oil maturity, other maturity indices must be used together for correction. In low maturity, the relative abundances of dibenzothiophene (DBT), fluorine (F) and dibenzofuran (DBF) can be used to identify the oxidation-reduction environments.

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Distribution of naphthalenes in crude oils from the Java Sea: Source and maturation effects

Cited by 116 publications

References 20 publications

Naphthalenes in Neogene sediments of the Shinjo basin, Japan.

Naphthalenes in Neogene sediments of the Shinjo basin, Japan.

Occurrence and distribution of series long-chain alkyl naphthalenes in Late Cretaceous sedimentary rocks of the Songliao Basin, China

Distribution of aromatic biomarkers in pyrolysates of coccolithophore

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