The origin, depositional environment and maturity of petroleum source rocks were determined via conventional whole rock and biomarker analysis of samples from wells in the Banat Depression, where the most important Serbian oil and gas fields are located. The organic matter (OM) in organic-rich upper Tertiary siltstones and marls consists predominantly of Type II kerogen. Numerous biomarker parameters indicated mixed algal-terrestrial OM, related to a brackish or freshwater environment, whose salinity decreased from Middle to Upper Miocene. The OM was deposited under variable redox conditions, reducing to sub-oxic. The wells in the Banat Depression experienced variable high rates of rapid heating, providing an opportunity for examining the applicability of different thermal indicators in a hyperthermal basin. Rock-Eval and numerous biomarker parameters indicate that the main stage of oil generation begins at ca. 130 degrees C and vitrinite reflectance (Rc) ca. 0.63% and reaches a maximu...m at ca. 145-150 degrees C and Rc ca. 0.72-0.75%, while the late stage of oil generation starts at ca. 155 degrees C and ca. Rc 0.78%, which corresponds, depending on geothermal gradient, to relative depths of 2100-2300 m, 2600-2900 m and 3050-3100 m, respectively. The naphthalene and phenanthrene maturity parameters proved to be less applicable than the biomarker ratios, particularly in the early to moderate maturation range. The newly proposed parameter C(14a)-homo-26-nor-17 alpha(H)-hopane/C(30)hopane (C(30)HH/C(30)H) proved applicable to a wide range of maturity.
TY - JOUR
AU - Mrkić, Sanja
AU - Stojanović, Ksenija
AU - Kostić, Aleksandar
AU - Nytoft, Hans Peter
AU - Šajnović, Aleksandra
PY - 2011
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/789
AB - The origin, depositional environment and maturity of petroleum source rocks were determined via conventional whole rock and biomarker analysis of samples from wells in the Banat Depression, where the most important Serbian oil and gas fields are located. The organic matter (OM) in organic-rich upper Tertiary siltstones and marls consists predominantly of Type II kerogen. Numerous biomarker parameters indicated mixed algal-terrestrial OM, related to a brackish or freshwater environment, whose salinity decreased from Middle to Upper Miocene. The OM was deposited under variable redox conditions, reducing to sub-oxic. The wells in the Banat Depression experienced variable high rates of rapid heating, providing an opportunity for examining the applicability of different thermal indicators in a hyperthermal basin. Rock-Eval and numerous biomarker parameters indicate that the main stage of oil generation begins at ca. 130 degrees C and vitrinite reflectance (Rc) ca. 0.63% and reaches a maximum at ca. 145-150 degrees C and Rc ca. 0.72-0.75%, while the late stage of oil generation starts at ca. 155 degrees C and ca. Rc 0.78%, which corresponds, depending on geothermal gradient, to relative depths of 2100-2300 m, 2600-2900 m and 3050-3100 m, respectively. The naphthalene and phenanthrene maturity parameters proved to be less applicable than the biomarker ratios, particularly in the early to moderate maturation range. The newly proposed parameter C(14a)-homo-26-nor-17 alpha(H)-hopane/C(30)hopane (C(30)HH/C(30)H) proved applicable to a wide range of maturity.
PB - Oxford : Pergamon-Elsevier Science Ltd
T2 - Organic Geochemistry
T1 - Organic geochemistry of Miocene source rocks from the Banat Depression (SE Pannonian Basin, Serbia)
VL - 42
IS - 6
SP - 655
EP - 677
DO - 10.1016/j.orggeochem.2011.03.025
ER -
@article{
author = "Mrkić, Sanja and Stojanović, Ksenija and Kostić, Aleksandar and Nytoft, Hans Peter and Šajnović, Aleksandra",
year = "2011",
abstract = "The origin, depositional environment and maturity of petroleum source rocks were determined via conventional whole rock and biomarker analysis of samples from wells in the Banat Depression, where the most important Serbian oil and gas fields are located. The organic matter (OM) in organic-rich upper Tertiary siltstones and marls consists predominantly of Type II kerogen. Numerous biomarker parameters indicated mixed algal-terrestrial OM, related to a brackish or freshwater environment, whose salinity decreased from Middle to Upper Miocene. The OM was deposited under variable redox conditions, reducing to sub-oxic. The wells in the Banat Depression experienced variable high rates of rapid heating, providing an opportunity for examining the applicability of different thermal indicators in a hyperthermal basin. Rock-Eval and numerous biomarker parameters indicate that the main stage of oil generation begins at ca. 130 degrees C and vitrinite reflectance (Rc) ca. 0.63% and reaches a maximum at ca. 145-150 degrees C and Rc ca. 0.72-0.75%, while the late stage of oil generation starts at ca. 155 degrees C and ca. Rc 0.78%, which corresponds, depending on geothermal gradient, to relative depths of 2100-2300 m, 2600-2900 m and 3050-3100 m, respectively. The naphthalene and phenanthrene maturity parameters proved to be less applicable than the biomarker ratios, particularly in the early to moderate maturation range. The newly proposed parameter C(14a)-homo-26-nor-17 alpha(H)-hopane/C(30)hopane (C(30)HH/C(30)H) proved applicable to a wide range of maturity.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Organic Geochemistry",
title = "Organic geochemistry of Miocene source rocks from the Banat Depression (SE Pannonian Basin, Serbia)",
volume = "42",
number = "6",
pages = "655-677",
doi = "10.1016/j.orggeochem.2011.03.025"
}
Mrkić, S., Stojanović, K., Kostić, A., Nytoft, H. P.,& Šajnović, A.. (2011). Organic geochemistry of Miocene source rocks from the Banat Depression (SE Pannonian Basin, Serbia). in Organic Geochemistry
Oxford : Pergamon-Elsevier Science Ltd., 42(6), 655-677.
https://doi.org/10.1016/j.orggeochem.2011.03.025
Mrkić S, Stojanović K, Kostić A, Nytoft HP, Šajnović A. Organic geochemistry of Miocene source rocks from the Banat Depression (SE Pannonian Basin, Serbia). in Organic Geochemistry. 2011;42(6):655-677.
doi:10.1016/j.orggeochem.2011.03.025 .
Mrkić, Sanja, Stojanović, Ksenija, Kostić, Aleksandar, Nytoft, Hans Peter, Šajnović, Aleksandra, "Organic geochemistry of Miocene source rocks from the Banat Depression (SE Pannonian Basin, Serbia)" in Organic Geochemistry, 42, no. 6 (2011):655-677,
https://doi.org/10.1016/j.orggeochem.2011.03.025 . .
