Heating rate effects on aromatic maturity indicators

Alexander, Robert; Strachan, Michael G.; Kagi, Robert I.; Bronswijk, Wilhelm van

doi:10.1016/s0146-6380(86)80038-9

Cited by 48 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, several parameters based on the distribution of aromatic biomarkers (e.g., Radke and Welte, 1983;Alexander et al, 1986) CPI ¼ 2$n-C22þ25þ27þ29/(n-C22 þ n-C 30 þ 2$n-C 24þ26þ28 ) (Bray and Evans, 1961). CCL ¼ n-C 12-20 /n-C 12-29 ; C 23-3 /C 24-4 ¼ C 23 -tricyclic terpane/C 24 -tetracyclic terpane.…”

Section: Thermal Maturitymentioning

confidence: 99%

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

View full text Add to dashboard Cite

Section: Thermal Maturitymentioning

confidence: 99%

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

View full text Add to dashboard Cite

“…In the MITI Takada heiya well the present temperatures at 1522 m (%Rm = 0.45), 3500 m (%Rm = 1.6) and 5240 m (%Rm = 2.9) are 75°C, 130°C and 180°C, re spectively, from the well data (JNOC, 1988). Alexander et al (1986) suggested that the ap parent geological heating rate could influence re action rates of several geochemical reactions in cluding MPI during diagenesis. For example, the different evolution path of sterane and hopane isomerization (or aromatization) vs. %Rm increase due to the different geological heating rate was discussed by Mackenzie and McKenzie (1983) and Suzuki (1984).…”

Section: Resultsmentioning

confidence: 99%

“…These studies have been performed using the samples from comparatively older sedimentary basins characterized by the low to moderate geo chemical heating rates. Alexander et al (1986) suggested that MPI vs. %Rm relationship was dependent on the thermal history and heating rates of the sedimentary basin. In the present paper, the MPI to %Rm relationships under high heating rates were investigated in order to test the usefulness of MPI as a geothermal indicator, using samples from a young Neogene sedimentary basin (the MITI Takada-heiya well from Takada basin, Ja pan) and thermally altered Neogene sedimentary rocks by a dolerite intrusion (Kusanagi shales from Shinjo basin, Japan).…”

Section: Mpi3mentioning

confidence: 99%

“…Comparatively lower MPI1 of the immature samples from the MITI Takada-heiya well is considered to be due to the abundant ter rigenous organic matter. The sediments character ized by abundant terrestrial organic matter (kero gen Type III) tend to be rich in P and 1-MP compared to the marine sediments (Alexander et al, 1986(Alexander et al, , 1988Garrigues et al, 1986Garrigues et al, , 1990Radke et al, 1986;Radke, 1987Radke, , 1988. Kerogen from the MITI Takada-heiya well and Elmworth well is classified to Type III (Radke et al, 1982a;Hata and Sekiguchi, 1992).…”

Section: Influence Of Organic Typementioning

confidence: 99%

See 1 more Smart Citation

Methylphenanthrenes from the MITI Takada-heiya well and thermally altered Kusanagi shales by dolerite intrusion in Northeast Japan.

et al. 1994

View full text Add to dashboard Cite

Compositional changes of phenanthrene (P) and methylphenanthrenes (MP) in mudstones received burial diagenesis and contact thermal alteration were examined to test their usefulness as thermal indicators. Mudstone samples were obtained from the MITI Takada-heiya well (Neogene Takada basin, Niigata, Japan) and from outcrops of the Kusanagi formation (Neogene, Yamagata, Japan), where the thermal alteration by dolerite intrusion occurred in Miocene time.Concentrations of MP increased in the sediments deeper than the peak of oil generation in both the MITI Takada-heiya well and the thermally altered Kusanagi shales. The main formation zone of MP seems to correspond to the relatively higher maturation stage (mean vitrinite reflectance: %Rm > 1.0; JNOC, 1988) and the wet gas generation zone. Relative abundances of 2 and 3-MP to P and/or other MP isomers (MPI1 by Radke et al., 1982a; MPI3 by Angelin et al., 1983) increased with increasing maturity in the oil and wet gas generation zone in both the MITI Takada-heiya well and the thermally altered shales. However, the MPI vs. %Rm relationships in burial diagenesis (the MITI Takada-heiya well) and in contact thermal alteration (Kusanagi shales) were different from each other. Markedly different heating rate and temperature may be the major reasons for the difference. In the overly matured zone from 2.0%Rm to 3.0%, MPI3 may indicate the apparent equilibrium for methyl-shift of MP.

show abstract

“…Maturation of CM is accompanied by the release of various volatile organic components (e.g., aliphatics, aromatics), resulting in the formation of a solid residue with extremely high carbon content (e.g., Spokas 2010). This devolatilization process can be strongly affected not only by maximum temperature but also by other factors such as a change in reactivity due to shear damage (mechanochemical effect) and the kinetic effect of the heating rate (e.g., Alexander et al 1986;Kitamura et al 2012). Recently, Kaneki et al (2018) experimentally demonstrated that shear-enhanced mechanochemical effects can promote various organochemical reactions of CM at relatively low temperature and suggested that maximum temperatures estimated in the previous studies might be overestimated.…”

Section: Introductionmentioning

confidence: 99%

Kinetic effect of heating rate on the thermal maturity of carbonaceous material as an indicator of frictional heat during earthquakes

Kaneki

Hirono

2018

Earth Planets Space

View full text Add to dashboard Cite

Because the maximum temperature reached in the slip zone is significant information for understanding slip behaviors during an earthquake, the maturity of carbonaceous material (CM) is widely used as a proxy for detecting frictional heat recorded by fault rocks. The degree of maturation of CM is controlled not only by maximum temperature but also by the heating rate. Nevertheless, maximum slip zone temperature has been estimated previously by comparing the maturity of CM in natural fault rocks with that of synthetic products heated at rates of about 1 °C s −1 , even though this rate is much lower than the actual heating rate during an earthquake. In this study, we investigated the kinetic effect of the heating rate on the CM maturation process by performing organochemical analyses of CM heated at slow (1 °C s −1) and fast (100 °C s −1) rates. The results clearly showed that a higher heating rate can inhibit the maturation reactions of CM; for example, extinction of aliphatic hydrocarbon chains occurred at 600 °C at a heating rate of 1 °C s −1 and at 900 °C at a heating rate of 100 °C s −1. However, shear-enhanced mechanochemical effects can also promote CM maturation reactions and may offset the effect of a high heating rate. We should thus consider simultaneously the effects of both heating rate and mechanochemistry on CM maturation to establish CM as a more rigorous proxy for frictional heat recorded by fault rocks and for estimating slip behaviors during earthquake.

show abstract

Heating rate effects on aromatic maturity indicators

Cited by 48 publications

References 24 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

Methylphenanthrenes from the MITI Takada-heiya well and thermally altered Kusanagi shales by dolerite intrusion in Northeast Japan.

Kinetic effect of heating rate on the thermal maturity of carbonaceous material as an indicator of frictional heat during earthquakes

Contact Info

Product

Resources

About