Acidic polar compounds in petroleum: a new analytical methodology and applications as molecular migration indices

Galimberti, R.; Ghiselli, C.; Chiaramonte, M. A.

doi:10.1016/s0146-6380(00)00102-9

Cited by 46 publications

(24 citation statements)

References 23 publications

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“…Chromatograms often display an unresolved complex mixture (UCM) or hump (Behar and Albrecht, 1984;Meredith et al, 2000). In addition, most of the reference compounds are not commercially available for identification and confirmation (Galimberti et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Distribution of acids and nitrogen-containing compounds in biodegraded oils of the Liaohe Basin by negative ion ESI FT-ICR MS

Liao

Shi

Hsu

et al. 2012

Organic Geochemistry

108

101

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Section: Introductionmentioning

confidence: 99%

Distribution of acids and nitrogen-containing compounds in biodegraded oils of the Liaohe Basin by negative ion ESI FT-ICR MS

Liao

Shi

Hsu

et al. 2012

Organic Geochemistry

108

101

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“…Concentrations and ratios of carbazoles (nitrogen-containing compounds) were previously used as proxies of secondary migration distances267891011121314, based on their low solubility in water15. However, recent studies show that these empirical indicators do not solely reflect migration-related fractionations and thus do not actually correlate with migration distance, because their concentrations and ratios can also be affected by variations in organic facies (such as marine, lacustrine, or terrigenous organics; anoxic or suboxic depositional environment; carbonate or shale lithology) and thermal maturation of source rocks as well as biodegradation of oils8101617181920. In addition, it appears that properties of migration systems, such as porosity, sorption coefficients, oil saturation and oil volume, may also influence the utility of these tracers4.…”

mentioning

confidence: 99%

A novel molecular index for secondary oil migration distance

Zhang

Wang

et al. 2013

Sci Rep

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Determining oil migration distances from source rocks to reservoirs can greatly help in the search for new petroleum accumulations. Concentrations and ratios of polar organic compounds are known to change due to preferential sorption of these compounds in migrating oils onto immobile mineral surfaces. However, these compounds cannot be directly used as proxies for oil migration distances because of the influence of source variability. Here we show that for each source facies, the ratio of the concentration of a select polar organic compound to its initial concentration at a reference point is independent of source variability and correlates solely with migration distance from source rock to reservoir. Case studies serve to demonstrate that this new index provides a valid solution for determining source-reservoir distance and could lead to many applications in fundamental and applied petroleum geoscience studies.

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“…This feature led them suggested that the organic matter type of an oil is a less important factor in controlling the alkylphenol distributions in oils than the processes such as alkylation, isomerization of alkylphenols during diagenesis and thermal maturation or partitioning of phenols between petroleum, water and solid phases during primary and secondary petroleum migrations. However, other studies clearly illustrated that organic facies do exert controls on alkylphenol concentrations and distributions [5,6] . In present study, we noticed that some differences in homologue distributions of alkylphenols between Lujiapu Depression and Dongying Depression might be organic facies related although both are rifted basins.…”

Section: Distribution Of Alkylphenolsmentioning

confidence: 99%

“…Galimberti et al. [6] proposed the molecular migration index (MMI), based on ratios of o-cresol/phenol, which increases with petroleum migration distance. More recently, Yang et al [7] constructed the mathematical models to describe the occurrence of geotracers in migrated and reservoired oils.…”

Section: Introductionmentioning

confidence: 99%

Controls on alkylphenol occurrence and distribution in oils from lacustrine rift basins in East China

Zhou

Huang

2008

Sci. China Ser. D-Earth Sci.

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Oils from two lacustrine rift basins in east China are thoroughly investigated using geochemical method to understand controls on alkylphenol occurrence and distribution in oils. Oils in the Lujiapu Depression, Kailu Basin are derived from the Cretaceous source rocks, and those in the Dongying Depression, Bohai Bay Basin, from the Tertiary source rocks. All oils are experienced relatively short distance of migration and have similar maturity in each basin. Differences in homologue distributions from different oilfields are most likely caused by organic facies variation of source rocks. The oils in the Lujiapu Depression are characterized by high proportion of C 3 alkylphenols (prefixes refer to the number of alkylcarbons joined to the aromatic ring of the phenol molecule) and low proportion of cresols and C 2 alkylphenols compared to oils from the Dongying Depression. Alkylphenol isomer distribution is possibly affected by depositional environment especially for C 3 alkylphenols. Dysoxic freshwater environment is favorable for the formation of propyl or isopropyl substituted C 3 alkylphenols, while highly reducing saline water is more suitable for trimethyl substituted C 3 alkylphenols. Variations in alkylphenol concentrations within a petroleum system are controlled mainly by secondary migration processes with alkylphenol concentrations decreasing along migration direction. Interestingly, coupled with geological factors, a subtle change of alkylphenol concentrations can be applied to differentiate carrier systems. When oil migrates through sandy beds, concentrations of total alkylphenols decrease dramatically with migration distance, while such change is less significant when oil migrates vertically along faults. However, most isomer ratios potentially related to migration distance are not as effective as those alkylcarbazoles in migration diagnosis due to complicated affecting factors.

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Acidic polar compounds in petroleum: a new analytical methodology and applications as molecular migration indices

Cited by 46 publications

References 23 publications

Distribution of acids and nitrogen-containing compounds in biodegraded oils of the Liaohe Basin by negative ion ESI FT-ICR MS

Distribution of acids and nitrogen-containing compounds in biodegraded oils of the Liaohe Basin by negative ion ESI FT-ICR MS

A novel molecular index for secondary oil migration distance

Controls on alkylphenol occurrence and distribution in oils from lacustrine rift basins in East China

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