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Applicability of Calculated Vitrinite Reflectance for Assessment of Source Rock's Organic Matter Maturity in Hyperthermal Basins (Banat Depression, Serbia)

Authorized Users Only
2015
Authors
Stojadinović, Sanja
Kostic, A
Nytoft, Hans Peter
Stojanović, Ksenija
Article (Published version)
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Abstract
Middle and Upper Miocene petroleum source rocks from the Banat Depression, SE Pannonian Basin (Serbia) were investigated. These rocks contain organic matter (OM) in a relatively wide range of maturity (from early to late stage of liquid hydrocarbons generation). OM consists predominantly of Type II kerogen and was deposited under variable redox conditions. This prolific oil and gas production area, as a part of the hyperthermal Pannonain Basin, is characterized by high geothermal gradients (4.0-7.5A degrees C/100 m) and high heating rates (9-22A degrees C/Ma) of the Miocene sediments. Considering complexity of the vitrinite reflection measurements in the source rocks containing Type I and/or Type II kerogen, in this study the values of the measured vitrinite reflectance were compared to calculated vitrinite reflectance, based on maximal palaeotemperature and numerous geochemical maturity parameters. The objective of the study was to assess the applicability of calculated vitrinite refl...ectance for the Type II kerogen source rocks from a hyperthermal basin. The correlation analysis was performed according to Spearman and Pearson tests. The obtained results showed that calculation of vitrinite reflectance and determination of thermal maturity of OM of the source rocks in hyperthermal basins with high heating rates is best done when based on geochemical parameters calculated from compositions of steranes and methyldibenzothiophenes, and as expected-on maximal palaeotemperature.

Keywords:
OM / source rocks / hyperthermal basin / vitrinite reflectance / biomarkers / alkylaromatics / correlation analysis
Source:
Petroleum Chemistry, 2015, 55, 6, 444-454
Publisher:
  • Maik Nauka/Interperiodica/Springer, New York
Funding / projects:
  • Geochemical investigations of sedimentary rocks - fossil fuels and environmental pollutants (RS-176006)

DOI: 10.1134/S0965544115060134

ISSN: 0965-5441

WoS: 000357471900002

Scopus: 2-s2.0-84946745307
[ Google Scholar ]
2
1
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/1629
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Stojadinović, Sanja
AU  - Kostic, A
AU  - Nytoft, Hans Peter
AU  - Stojanović, Ksenija
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1629
AB  - Middle and Upper Miocene petroleum source rocks from the Banat Depression, SE Pannonian Basin (Serbia) were investigated. These rocks contain organic matter (OM) in a relatively wide range of maturity (from early to late stage of liquid hydrocarbons generation). OM consists predominantly of Type II kerogen and was deposited under variable redox conditions. This prolific oil and gas production area, as a part of the hyperthermal Pannonain Basin, is characterized by high geothermal gradients (4.0-7.5A degrees C/100 m) and high heating rates (9-22A degrees C/Ma) of the Miocene sediments. Considering complexity of the vitrinite reflection measurements in the source rocks containing Type I and/or Type II kerogen, in this study the values of the measured vitrinite reflectance were compared to calculated vitrinite reflectance, based on maximal palaeotemperature and numerous geochemical maturity parameters. The objective of the study was to assess the applicability of calculated vitrinite reflectance for the Type II kerogen source rocks from a hyperthermal basin. The correlation analysis was performed according to Spearman and Pearson tests. The obtained results showed that calculation of vitrinite reflectance and determination of thermal maturity of OM of the source rocks in hyperthermal basins with high heating rates is best done when based on geochemical parameters calculated from compositions of steranes and methyldibenzothiophenes, and as expected-on maximal palaeotemperature.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Petroleum Chemistry
T1  - Applicability of Calculated Vitrinite Reflectance for Assessment of Source Rock's Organic Matter Maturity in Hyperthermal Basins (Banat Depression, Serbia)
VL  - 55
IS  - 6
SP  - 444
EP  - 454
DO  - 10.1134/S0965544115060134
ER  - 
@article{
author = "Stojadinović, Sanja and Kostic, A and Nytoft, Hans Peter and Stojanović, Ksenija",
year = "2015",
abstract = "Middle and Upper Miocene petroleum source rocks from the Banat Depression, SE Pannonian Basin (Serbia) were investigated. These rocks contain organic matter (OM) in a relatively wide range of maturity (from early to late stage of liquid hydrocarbons generation). OM consists predominantly of Type II kerogen and was deposited under variable redox conditions. This prolific oil and gas production area, as a part of the hyperthermal Pannonain Basin, is characterized by high geothermal gradients (4.0-7.5A degrees C/100 m) and high heating rates (9-22A degrees C/Ma) of the Miocene sediments. Considering complexity of the vitrinite reflection measurements in the source rocks containing Type I and/or Type II kerogen, in this study the values of the measured vitrinite reflectance were compared to calculated vitrinite reflectance, based on maximal palaeotemperature and numerous geochemical maturity parameters. The objective of the study was to assess the applicability of calculated vitrinite reflectance for the Type II kerogen source rocks from a hyperthermal basin. The correlation analysis was performed according to Spearman and Pearson tests. The obtained results showed that calculation of vitrinite reflectance and determination of thermal maturity of OM of the source rocks in hyperthermal basins with high heating rates is best done when based on geochemical parameters calculated from compositions of steranes and methyldibenzothiophenes, and as expected-on maximal palaeotemperature.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Petroleum Chemistry",
title = "Applicability of Calculated Vitrinite Reflectance for Assessment of Source Rock's Organic Matter Maturity in Hyperthermal Basins (Banat Depression, Serbia)",
volume = "55",
number = "6",
pages = "444-454",
doi = "10.1134/S0965544115060134"
}
Stojadinović, S., Kostic, A., Nytoft, H. P.,& Stojanović, K.. (2015). Applicability of Calculated Vitrinite Reflectance for Assessment of Source Rock's Organic Matter Maturity in Hyperthermal Basins (Banat Depression, Serbia). in Petroleum Chemistry
Maik Nauka/Interperiodica/Springer, New York., 55(6), 444-454.
https://doi.org/10.1134/S0965544115060134
Stojadinović S, Kostic A, Nytoft HP, Stojanović K. Applicability of Calculated Vitrinite Reflectance for Assessment of Source Rock's Organic Matter Maturity in Hyperthermal Basins (Banat Depression, Serbia). in Petroleum Chemistry. 2015;55(6):444-454.
doi:10.1134/S0965544115060134 .
Stojadinović, Sanja, Kostic, A, Nytoft, Hans Peter, Stojanović, Ksenija, "Applicability of Calculated Vitrinite Reflectance for Assessment of Source Rock's Organic Matter Maturity in Hyperthermal Basins (Banat Depression, Serbia)" in Petroleum Chemistry, 55, no. 6 (2015):444-454,
https://doi.org/10.1134/S0965544115060134 . .

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