Comparative study between Rock-Eval pyrolysis and biomarkers parameters: A case study of Ypresian source rocks in central-northern Tunisia

Arfaoui, Adel; Montacer, Mabrouk; Kamoun, Fékri; Rigane, Adel

doi:10.1016/j.marpetgeo.2007.05.002

Cited by 26 publications

(12 citation statements)

References 27 publications

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“…The values for these samples are 0.21, 0.26 to 0.36. Diasterane/sterane ratios are generally low in immature sediment extracts (Arfaouvi et al, 2007); in the present study, these ratios are 2.89, 3.62 and 4.20. Moretane/hopane ratios are 0.37, 0.47 and 0.30.…”

Section: Organic Maturitysupporting

confidence: 41%

Relationships between coal-quality and organic-geochemical parameters: A case study of the Hafik coal deposits (Sivas Basin, Turkey)

Erik

Sancar

2010

International Journal of Coal Geology

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Section: Organic Maturitysupporting

confidence: 41%

Relationships between coal-quality and organic-geochemical parameters: A case study of the Hafik coal deposits (Sivas Basin, Turkey)

Erik

Sancar

2010

International Journal of Coal Geology

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“…Statistical analysis and evolution of HI and BI with increasing Ro% Each type of kerogen has its own path of maturation on a cross-plot of HI versus T max (Hunt 1996;Banerjee et al 1998;Pedersen et al 2006;Arfaoui et al 2007). HI and T max are functions of kerogen composition and thermal history.…”

Section: Resultsmentioning

confidence: 99%

Relationships among geochemical indices of coal and carbonaceous materials and implication for hydrocarbon potential evaluation

2009

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A worldwide dataset of organic material from 553 samples belonging to coal and carbonaceous materials was used to analyze the evolution of hydrogen index (HI) and bitumen index (BI) with increasing thermal maturity. Basic statistical analyses were applied to detect the boundary lines of HI max and BI max in delineating the upper and lower limits of the HI and BI bands for the majority of samples. In addition, cross-plots of HI or BI versus maturity (Ro% and T max ) also provide criteria for defining the HI max and BI max boundary lines. The constructed HI and BI bands are broad at low maturities and become narrower with increasing thermal maturities. The petroleum generation potential is completely exhausted at the vitrinite reflectance of 2.0-2.2% or T max of 510-520°C. An increase in HI implies extra petroleum generation which was related to changes in structure of organic materials. A declining BI means that the oil expulsion window starts to occur at the vitrinite reflectance range of 0.75-1.05%. The petroleum potential can be divided into four different areas based on the cross-plot of HI versus Ro%. The highest petroleum potential area is located in section II with Ro = 0.6-1.0% and HI [ 100. The oil generation potential is rapidly exhausted at section III with Ro [ 1.0%. This result is also in accordance with the result of curve regression of HI versus Ro% based on 80 samples with Ro = 1.02-3.43% (R 2 = 0.72). Overall, the total oil window can be extended up to Ro = *1.25-1.95%. Finally, in the cross-plots of S1 versus S2, shale or C-shale exhibits a higher and slowly decreased slope, compared with a lower and then sharply increased slope of coal samples, which is attributable to their compositional difference in organic material.

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“…The 22S/(22S + 22R) ratio varies between 0.46 and 0.70, indicating minor differences in maturity related to the effects of tectonically induced subsidence. In addition to the diasterane/sterane ratio being influenced by lithology, this ratio is typically low in immature sediments, and is between 0.38 and 1.83 in the studied samples (Arfaouni et al 2007). …”

Section: Steranes and Terpanesmentioning

confidence: 86%

Hydrocarbon generation potential and Miocene–Pliocene paleoenvironments of the Kangal Basin (Central Anatolia, Turkey)

Erik

2011

Journal of Asian Earth Sciences

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Comparative study between Rock-Eval pyrolysis and biomarkers parameters: A case study of Ypresian source rocks in central-northern Tunisia

Cited by 26 publications

References 27 publications

Relationships between coal-quality and organic-geochemical parameters: A case study of the Hafik coal deposits (Sivas Basin, Turkey)

Relationships between coal-quality and organic-geochemical parameters: A case study of the Hafik coal deposits (Sivas Basin, Turkey)

Relationships among geochemical indices of coal and carbonaceous materials and implication for hydrocarbon potential evaluation

Hydrocarbon generation potential and Miocene–Pliocene paleoenvironments of the Kangal Basin (Central Anatolia, Turkey)

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