Simulation of the fluorescence evolution of “live” oils from kerogens in a diamond anvil cell: Application to inclusion oils in terms of maturity and source

Chang, Yu-Hern; Huang, Wei‐Cheng

doi:10.1016/j.gca.2008.05.041

Cited by 30 publications

(12 citation statements)

References 83 publications

(173 reference statements)

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“…(2006) indicated that the mineral–water reactions can influence the yield and composition of hydrocarbon gases and CO 2 generated from the studied humic coal, although the influence of mineral matrices is small relative to that imposed by the compositional variation of organic matter. In situ experiments in a diamond anvil cell have been performed (Chang & Huang 2008; Chang et al. 2008; Mo et al.…”

Section: Recent Progress Of Gas Geochemistry Research In Taiwanmentioning

confidence: 99%

Recent progress in the application of gas geochemistry: examples from Taiwan and the 9th International Gas Geochemistry Conference

Yang¹

2008

Geofluids

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Gas geochemistry in the last two decades has emerged as an important scientific tool in geosciences due to the significant improvement of instrumentation. A review of recent progress in this field, based on the examples in Taiwan, shows that gas geochemistry is applicable to a wide range of problems in Earth sciences. The International Conferences on Gas Geochemistry (ICGG), held since 1982, are the only international venues exclusively dedicated to studies of gas geochemistry. This thematic edition, which includes 11 case studies presented during the 9th ICGG held in Taipei, 2007, covers a wide range of topics from both on-land and submarine geothermal, seepage ⁄ venting studies to gas flux estimation from mangroves and optimum sequestration depth for CO 2 geological storage.

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Section: Recent Progress Of Gas Geochemistry Research In Taiwanmentioning

confidence: 99%

Recent progress in the application of gas geochemistry: examples from Taiwan and the 9th International Gas Geochemistry Conference

Yang¹

2008

Geofluids

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“…However, the interpretation of fluorescence colours of oil inclusions remains controversial (George et al, 2001(George et al, , 2002Oxtoby, 2002;Chang and Huang, 2008). Several parameters control the colour of fluorescing oil: source rock origin (Chang and Huang, 2008), viscosity (API gravity) of the oil, and/or thermal maturity of the source rock (Burruss et al, 1985;Hagemann and Hollerbach, 1986;Stasiuk and Snowdon, 1997;Blanchet et al, 2003), degradation of the oil (Hagemann and Hollerbach, 1986) and trapping processes (Pang et al, 1998;George et al, 2001). In many cases oil inclusions with different fluorescence colours occur in the same crystals (e.g., Dutkiewicz et al, 1998;Blanchet et al, 2003;Volk et al, 2002;Pironon, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…They observed a wide variety of fluorescence colours from the Alwyn reservoir (North Sea) and interpreted this to represent compositional variations resulting from either progressive entrapment of oils at evolving maturity and/or due to a fractionation process that affected hydrocarbons at the time of trapping. Multiple charging from the same source rock should lead to the trapping of more blue-fluorescing inclusions with increasing thermal maturity of the source rock (Chang and Huang, 2008). Trapping processes are also proposed to have led to an enrichment of polar compounds in oil inclusions Karlsen et al, 1993;Macleod et al, 1993Macleod et al, , 1994George et al, 1997a;Pang et al, 1998;Bhullar et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Chemical changes of fluid inclusion oil trapped during the evolution of an oil reservoir: Jabiru-1A case study (Timor Sea, Australia)

Bourdet

Eadington

Volk

et al. 2012

Marine and Petroleum Geology

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“…The effect of high temperature on the fluorescence emission of other complex hydrocarbon based/derived materials such as kerogens, crude oils or coal has also been studied by a variety of research groups. [10][11][12][13] Fluorescence emission is generally enhanced by lowering the temperature due to a reduction in collisional quenching. 14 For simple Polycyclic Aromatic Hydrocarbons (PAHs) systems (i.e.…”

Section: Introductionmentioning

confidence: 99%

Low Temperature Fluorescence Studies of Crude Petroleum Oils

Owens

Ryder

2011

Energy Fuels

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We have studied the low-temperature (133−298 K) fluorescence emission of crude petroleum oils using a combination of steady-state and time-resolved measurements. This was done to first see if we could generate linear correlations between oil composition information and the fluorescence measurements, and second to better understand how static and dynamic quenching affect fluorescence emission. It was observed that the fluorescence intensity and lifetime of the crude oils increased rapidly with decreasing temperature down to the freezing point and then either remained constant or surprisingly began to decrease slightly. These changes could not be correlated accurately with the compositional data available. However, despite the very large variations in sample composition, it was found that these lifetimetemperature changes followed simple Arrhenius and Eyring behavior. For the cold liquid phase, an Arrhenius model enabled the calculation of an intrinsic lifetime, the magnitude of which was inversely related to the degree of static quenching. The low values of the calculated activation energies (4.6 to 19.2 kJmol − 1) implied that in the liquid phase, non-radiative decay was primarily diffusion based quenching. At the lowest temperatures, when all samples have solidified, the lifetime data followed Eyring like behavior, giving typical enthalpy and entropy values of −1 kJmol − 1 and from −67 to −93 JK − 1 mol − 1 respectively. The Eyring model was used to describe the non-radiative decay mechanism arising from vibrational coupling from the fluorophores to the surrounding matrix. This modeling of the temperature dependence of fluorescence lifetime has provided a clearer, quantitative picture of the fluorescence quenching processes in crude petroleum oils.

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Simulation of the fluorescence evolution of “live” oils from kerogens in a diamond anvil cell: Application to inclusion oils in terms of maturity and source

Cited by 30 publications

References 83 publications

Recent progress in the application of gas geochemistry: examples from Taiwan and the 9th International Gas Geochemistry Conference

Recent progress in the application of gas geochemistry: examples from Taiwan and the 9th International Gas Geochemistry Conference

Chemical changes of fluid inclusion oil trapped during the evolution of an oil reservoir: Jabiru-1A case study (Timor Sea, Australia)

Low Temperature Fluorescence Studies of Crude Petroleum Oils

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