Methylphenanthrene maturity index of marine source rock extracts and crude oils from the Maracaibo Basin

Cassani, Fernando; Gallango, O.; Talukdar, Suhas C.; Vallejos, Carlos; Ehrmann, Ursula

doi:10.1016/b978-0-08-037236-5.50013-0

Cited by 31 publications

(32 citation statements)

References 9 publications

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“…The MPI-1 and %Rc 1 values calculated for the bitumens of the Pedregoso Formation range from 0.10 to 0.55 (average, 0.40) and 1.97-2.24% (average, 2.11%) respectively (Table 3), another indication that the OM is overmature, specifically, in the dry gas window. The low MPI-1 index values observed in some samples (Table 3) may be due to lithological variations as well as to type of preserved OM (marine origin) (Radke and Welte, 1983;Cassani et al, 1988). The indices involving aromatic sulfur compounds also can indicate that the OM reaches a high level of thermal maturity at the end of late catagenesis.…”

Section: Thermal Maturitymentioning

confidence: 92%

Assessment of the oil source-rock potential of the Pedregoso Formation (Early Miocene) in the Falcón Basin of northwestern Venezuela

Montero‐Serrano

Martínez

Riboulleau

et al. 2010

Marine and Petroleum Geology

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Section: Thermal Maturitymentioning

confidence: 92%

Assessment of the oil source-rock potential of the Pedregoso Formation (Early Miocene) in the Falcón Basin of northwestern Venezuela

Montero‐Serrano

Martínez

Riboulleau

et al. 2010

Marine and Petroleum Geology

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“…The methyl phenanthrene maturity index (MPI-1) ranges between 0.47 and 0.96 , with the highest values recorded for the Lower Triassic. The lack of coal and vitrinite in the early Triassic likely influenced the high MPI-1 values (Cassani et al, 1988) and the low maturity values reported for the Upper Permian can be assumed to span the entire studied section.…”

Section: Samplesmentioning

confidence: 99%

Occurrence and significance of phytanyl arenes across the Permian-Triassic boundary interval

Grotheer

Métayer

Piggott

et al. 2017

Organic Geochemistry

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a b s t r a c tPhytanyl benzene and phytanyl toluene occur in mudstones from several key Permian-Triassic Boundary (PTB) sections from mid-northern palaeolatitudes (Spitsbergen and Eastern Greenland), as well as mid-southern palaeolatitudes (Western Australia). The occurrence of these compounds through the different PTB sections is related to the occurrence of the previously identified C 33 n-alkyl cyclohexane, suggesting their parent organism shared a similar unique ecological niche and was associated with the extinction horizon. Further, the lack of these compounds in the carbonate-dominated palaeoequatorial, Global Stratotype Section and Point (GSSP), Meishan-1 (South China) section possibly points to their source being temperature and climate controlled.

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“…High C 19 /C 23 TT and C 20 /C 23 TT ratios indicate important contribution from terrigenous organic matter (Hanson et al, 2000;Preston and Edwards, 2000;Volk et al, 2005). Specific parameters include C 23 /C 21 (Ekweozor and Strausz, 1983), C 23 /C 24 (Cassani et al, 1988) and (C 20 þC 21 )/ (C 23 þC 24 ) (Shi et al, 1988). The proportion of C 24 tetracyclic terpane relative to tricyclic terpanes may also be facies dependent.…”

Section: Distribution Of Tricyclic and Tetracyclic Terpanes In Crude mentioning

confidence: 99%

Geochemical application of tricyclic and tetracyclic terpanes biomarkers in crude oils of NW China

Tao

Wang

et al. 2015

Marine and Petroleum Geology

135

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a b s t r a c tComposition and distribution of tricyclic terpanes, tetracyclic terpanes and hopane in crude oils from Tarim, Turpan, Ordos and Qaidam basins, NW China, were investigated, and some new source dependent parameters were developed and evaluated. C 19 and C 20 tricyclic terpanes are more abundant in terrigenous oils, with C 24 tetracyclic terpane dominant. Relatively higher carbon number tricyclic terpanes, especially C 23 tricyclic terpane, are often the dominant homologues in crude oils from saline lacustrine and marine sources. On the whole, the relative content of C 23 tricyclic terpane of crude oils follow the order of saline lacustrine oils > marine oils > freshwater lacustrine oils > terrigenous oils for C 19e23 tricyclic terpane. Some new parameters based on the tricyclic/hopane and tetracyclic/tricyclic terpane as well as tetracyclic/hopane ratios, could be used to distinguish the oils and source rocks with similar maturity deposited in different sedimentary environments.

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Methylphenanthrene maturity index of marine source rock extracts and crude oils from the Maracaibo Basin

Cited by 31 publications

References 9 publications

Assessment of the oil source-rock potential of the Pedregoso Formation (Early Miocene) in the Falcón Basin of northwestern Venezuela

Assessment of the oil source-rock potential of the Pedregoso Formation (Early Miocene) in the Falcón Basin of northwestern Venezuela

Occurrence and significance of phytanyl arenes across the Permian-Triassic boundary interval

Geochemical application of tricyclic and tetracyclic terpanes biomarkers in crude oils of NW China

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