Geochemical study of the Uinta Basin: formation of petroleum from the Green River formation

Tissot, Bernard P.; Deroo, G.; Hood, Archie

doi:10.1016/0016-7037(78)90018-2

Cited by 228 publications

(73 citation statements)

References 10 publications

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“…2) with moderate CPI values that range 1.09-1.19 consistent with derivation from a mixed algal and terrestrial organic matter [11,12] due to the abundance of both the light and heavy carbon numbers. The observed slight variations in the n-alkane distributions in the oils could be due to minor facies variations within the source rock where near shore environments may have received slightly more terrestrial organic material relative to those in the depocenter of the lake.…”

Section: N-alkane and Acyclic Isoprenoid Alkanessupporting

confidence: 71%

Molecular Organic Geochemistry of Crude Oils from the Albertine Graben, Uganda: Possible Implications on the Expulsion of the Oils from the Source Rocks

Lukaye¹,

Etano²,

Abbott³

2017

JEASE

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Twelve representative crude oil samples recovered from six oil fields in the Albertine Graben, Uganda were chosen for this study. The study aimed to understand the genetic relationships between the oils, the inferred depositional environment of the source rocks, maturity of the crude oils, and to gain some insight on the expulsion of the oils from source rocks. The work involved geochemical bulk analysis (asphaltene and liquid chromatographic separations), GC-FID (gas chromatography with a flame ionization detector), and GC-MS (gas chromatography-mass spectrometry) of saturate and aromatic fractions. Bulk analysis shows that the oils are dominated by saturate hydrocarbon fractions (48.7%-62.0%) and are highly waxy (35-56.2 wt%) with low sulfur content (≤ 0.1 wt%). The high saturate hydrocarbon and high wax contents are probably due to organic matter input from land plants and/or long-chain alkanes from fresh water algae in lacustrine systems. The low sulfur contents alongside the high wax abundances are consistent with clastic-dominated source rock facies deposited in a non-stratified lacustrine environment. Data from GC-FID and GC-MS analyses such as n-alkane distributions, pristane/phytane ratios, biomarker terpane and sterane, dibenzothiophene and phenanthrene parameters show that the oils belong to a single family and were derived from a clastic predominantly algal source rock deposited under suboxic conditions in a non-stratified freshwater to brackish water lacustrine environment. The data further show that the oils have a very narrow range of maturities and are generated in the peak oil window. The observed narrow range of maturities and inferred lacustrine depositional setting for the source rocks suggest that the kerogen responsible for the generation of the oils is likely to be predominantly type-1 known to display narrow activation energies. This in turn implies that the expulsion of the oil from the source rock occurred as a quick single event hence, the filling of reservoirs in the Albertine Graben probably did not involve late stage expulsion and multiple charges of oil.

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Section: N-alkane and Acyclic Isoprenoid Alkanessupporting

confidence: 71%

Molecular Organic Geochemistry of Crude Oils from the Albertine Graben, Uganda: Possible Implications on the Expulsion of the Oils from the Source Rocks

Lukaye¹,

Etano²,

Abbott³

2017

JEASE

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“…The progress of hydrocarbon generation can be predicted by determining the activation energy distribution and the frequency factor on the basis of pyrolysis experiments. Conventional kinetic models use either a single activation energy and frequency factor set (Welte and Yalcin, 1988), or multiple activation energies with a single frequency factor (Tissot et al, 1978;Delvaux et al, 1990;Reynolds et al, 1995;Dieckmann, 1998;Schenk and Horsfield, 1998;Vandenbroucke et al, 1999), to model hydrocarbon generation. Models containing a distribution of activation energy values and a distribution of frequency factor values have also been applied (Dieckmann et al, 2002;Dieckmann, 2005).…”

Section: Kinetic Parametersmentioning

confidence: 99%

Kinetics of oil group-type generation and expulsion: An integrated application to Dongying Depression, Bohai Bay Basin, China

Wei

Zou

Cai

et al. 2012

Organic Geochemistry

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“…The first component was dominated by C3-C8 hydrocarbons, the second by C8-C11 hydrocarbons, and the third by methanol (with little hydrocarbon influence), indicating that methanol and hydrocarbon fluxes may not have originated from the same source. Alcohols do not naturally exist in significant concentrations in oil or natural gas (Tissot et al, 1978), and we expect that the amount of alcohols added during oil and gas production varies by operator, formation, and season. Fig.…”

Section: Fluxes From Produced Water Pondsmentioning

confidence: 99%

Emissions of organic compounds from produced water ponds I: Characteristics and speciation

Lyman

Mansfield

Tran

et al. 2018

Science of The Total Environment

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Geochemical study of the Uinta Basin: formation of petroleum from the Green River formation

Cited by 228 publications

References 10 publications

Molecular Organic Geochemistry of Crude Oils from the Albertine Graben, Uganda: Possible Implications on the Expulsion of the Oils from the Source Rocks

Molecular Organic Geochemistry of Crude Oils from the Albertine Graben, Uganda: Possible Implications on the Expulsion of the Oils from the Source Rocks

Kinetics of oil group-type generation and expulsion: An integrated application to Dongying Depression, Bohai Bay Basin, China

Emissions of organic compounds from produced water ponds I: Characteristics and speciation

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