Biodegradation and migrational fractionation of oils from the Eastern Carpathians, Poland

Matyasik, I.; Steczko, A.; Philp, R. Paul

doi:10.1016/s0146-6380(00)00103-0

Cited by 36 publications

(12 citation statements)

References 10 publications

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“…Such results are similar to those reported by van Graas et al (2000), Matyasik et al (2000), Masterson et al (2001), Hao et al (2002), Cañipa-Morales et al (2003), and Chang et al (2007). After plotting our data in a similar way (Fig.…”

Section: Principle Of Phase Fractionationsupporting

confidence: 93%

Origin of subsequent condensate pool in Lunnan low uplift, Northwest China

Cai

Liu

et al. 2010

J. Earth Sci.

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Lunnan (轮南) low uplift, where developed amounts of condensate pools in both Ordovician and Carboniferous reservoirs, locates in the north uplift of Tarim basin, Northwest China. Lunnan area has experienced intensive gas invasion since the Himalayan movement, causing multiple types of accumulation coexisting in the Ordovician reservoir. Geochemical evidence shows that these condensate oils are of low maturity (vitrinite reflectance levels near 1.0%) and the dominant component of the condensate gas is dry gas (the content of CH 4 over 94%), which reflects that the condensate pool in Lunnan area is not the product of thermal cracking, but the subsequent accumulation derived from the phase fractionation. Furthermore, our observations on the C 6 -C 7 hydrocarbons in Lunnan area are qualitatively similar to the effect of phase fractionation with condensates having higher paraffin and lower aromaticity than residual oils. Thus, two types of the condensates are defined by their phase behavior, which are saturated condensate pool and the nonsaturated one. The saturated condensate pool with an oil ring mainly developed in Ordovician reservoir, with large difference between formation pressure (FMP) and the dew point pressure (DPP). The origin of these condensates is considered as the in-situ segregation triggered by the invasion of excessive dry gas. On the other hand, the nonsaturated condensate pool that almost existed in the Carboniferous reservoir is a hydrocarbon reservoir containing slight difference between FMP and DPP, without oil ring, and evaporative fractionation due to the fault movement controls its generation. KEY WORDS: Lunnan low uplift, subsequent condensate pool, phase fractionation, gas washing.

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Section: Principle Of Phase Fractionationsupporting

confidence: 93%

Origin of subsequent condensate pool in Lunnan low uplift, Northwest China

Cai

Liu

et al. 2010

J. Earth Sci.

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“…Crude oil expelled from a given source rock sequence will contain biomarkers whose character testifies to the ancient biomass that had originally accumulated in the ancient sediments that later formed the source rock (Didyk et al, 1978;Moldowan et al, 1985;Peters et al, 1986;Volkman, 1988) and its lithology (Rubinstein and Albrecht, 1975). The migration of crude after its expulsion from the source strata can introduce new compounds "extracted" from carrier beds or reservoir rocks (Curiale, 2002) or experience subtle molecular fractionation (Larter et al, 1996;Matyasik et al, 2000). The migration of crude after its expulsion from the source strata can introduce new compounds "extracted" from carrier beds or reservoir rocks (Curiale, 2002) or experience subtle molecular fractionation (Larter et al, 1996;Matyasik et al, 2000).…”

Section: Primary Control -Crude Oil Genesismentioning

confidence: 99%

Chemical fingerprinting of spilled or discharged petroleum — methods and factors affecting petroleum fingerprints in the environment

Stout¹,

Wang

2007

Oil Spill Environmental Forensics

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“…An input of latter stage of light hydrocarbons into the earlier biodegraded heavy oils as seen in the Guneshli field is a widespread phenomena and has been well documented in several regions of the world: North Slope, Alaska (Masterson, Dzou, Holba, Fincannon, & Ellis, 2001) and Gulf of Mexico (Holba et al, 1996), Eastern Carpathians, Poland (Matyasik, Steczko, & Philp, 2000) and in the Umbaki field oils, western SCB (Abrams & Narimanov, 1997). Abrams and Narimanov (1997) suggested that the process called as 'evaporative-fractionation' is a valid way of explaining presence of light fractions in the biodegraded the SCB oils.…”

Section: Biodegradationmentioning

confidence: 99%

Correlation, alteration, and origin of hydrocarbons in the GCA, Bahar, and Gum Adasi fields, western South Caspian Basin: geochemical and multivariate statistical assessments

Gürgey¹

2003

Marine and Petroleum Geology

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Biodegradation and migrational fractionation of oils from the Eastern Carpathians, Poland

Cited by 36 publications

References 10 publications

Origin of subsequent condensate pool in Lunnan low uplift, Northwest China

Origin of subsequent condensate pool in Lunnan low uplift, Northwest China

Chemical fingerprinting of spilled or discharged petroleum — methods and factors affecting petroleum fingerprints in the environment

Correlation, alteration, and origin of hydrocarbons in the GCA, Bahar, and Gum Adasi fields, western South Caspian Basin: geochemical and multivariate statistical assessments

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