Applicability of infrared aliphatic stretching region for characterisation of oils of the same genetic type
Апстракт
The work focuses on the applicability of infrared (IR) aliphatic stretching region for characterisation of oils of the same genetic type. Paraffinic oils (56 samples) from the Turija-Sever oil field were studied. The oils are similar originate from mixed aquatic/terrestrial sources and were generated from Tertiary source rocks in an early stage of oil window. However, slight differences among the oils were observed. They are reflected in a higher contribution of algal organic matter (OM) to the group I oils formed in more reducing environment (western part of the field), compared to the oils from eastern part (group II). The IR CH2/CH3 branching factor segregates oils into two identical groups (I and II) established based on biomarkers and aromatic hydrocarbons. The group I oils showed lower values of CH2/CH3 factor than group II oils. Enhanced CH2/CH3 ratio for group II oils indicate that in the case of uniform maturity greater average length of polymethylene fragments results from a ...higher content of long chain n-alkanes signifying an increased impact of terrigenous OM (land plant waxes). Correlation between the normal to isoprenoid alkanes sum ratio and the CH2/CH3 factor is useful for detecting slight differences between oils of the same genetic type.
Кључне речи:
Turija-Sever / crude oils / IR spectroscopy / CH2/CH3 branching factorИзвор:
Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021), 2021, 2021Издавач:
- European Association of Geoscientists & Engineers
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200168 (Универзитет у Београду, Хемијски факултет) (RS-MESTD-inst-2020-200168)
Колекције
Институција/група
Hemijski fakultet / Faculty of ChemistryTY - CONF AU - Stevanović, J. AU - Rakitin, A.R. AU - Stojanović, Ksenija A. PY - 2021 UR - http://cherry.chem.bg.ac.rs/handle/123456789/5170 AB - The work focuses on the applicability of infrared (IR) aliphatic stretching region for characterisation of oils of the same genetic type. Paraffinic oils (56 samples) from the Turija-Sever oil field were studied. The oils are similar originate from mixed aquatic/terrestrial sources and were generated from Tertiary source rocks in an early stage of oil window. However, slight differences among the oils were observed. They are reflected in a higher contribution of algal organic matter (OM) to the group I oils formed in more reducing environment (western part of the field), compared to the oils from eastern part (group II). The IR CH2/CH3 branching factor segregates oils into two identical groups (I and II) established based on biomarkers and aromatic hydrocarbons. The group I oils showed lower values of CH2/CH3 factor than group II oils. Enhanced CH2/CH3 ratio for group II oils indicate that in the case of uniform maturity greater average length of polymethylene fragments results from a higher content of long chain n-alkanes signifying an increased impact of terrigenous OM (land plant waxes). Correlation between the normal to isoprenoid alkanes sum ratio and the CH2/CH3 factor is useful for detecting slight differences between oils of the same genetic type. PB - European Association of Geoscientists & Engineers C3 - Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021) T1 - Applicability of infrared aliphatic stretching region for characterisation of oils of the same genetic type VL - 2021 DO - 10.3997/2214-4609.202134140 ER -
@conference{ author = "Stevanović, J. and Rakitin, A.R. and Stojanović, Ksenija A.", year = "2021", abstract = "The work focuses on the applicability of infrared (IR) aliphatic stretching region for characterisation of oils of the same genetic type. Paraffinic oils (56 samples) from the Turija-Sever oil field were studied. The oils are similar originate from mixed aquatic/terrestrial sources and were generated from Tertiary source rocks in an early stage of oil window. However, slight differences among the oils were observed. They are reflected in a higher contribution of algal organic matter (OM) to the group I oils formed in more reducing environment (western part of the field), compared to the oils from eastern part (group II). The IR CH2/CH3 branching factor segregates oils into two identical groups (I and II) established based on biomarkers and aromatic hydrocarbons. The group I oils showed lower values of CH2/CH3 factor than group II oils. Enhanced CH2/CH3 ratio for group II oils indicate that in the case of uniform maturity greater average length of polymethylene fragments results from a higher content of long chain n-alkanes signifying an increased impact of terrigenous OM (land plant waxes). Correlation between the normal to isoprenoid alkanes sum ratio and the CH2/CH3 factor is useful for detecting slight differences between oils of the same genetic type.", publisher = "European Association of Geoscientists & Engineers", journal = "Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021)", title = "Applicability of infrared aliphatic stretching region for characterisation of oils of the same genetic type", volume = "2021", doi = "10.3997/2214-4609.202134140" }
Stevanović, J., Rakitin, A.R.,& Stojanović, K. A.. (2021). Applicability of infrared aliphatic stretching region for characterisation of oils of the same genetic type. in Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021) European Association of Geoscientists & Engineers., 2021. https://doi.org/10.3997/2214-4609.202134140
Stevanović J, Rakitin A, Stojanović KA. Applicability of infrared aliphatic stretching region for characterisation of oils of the same genetic type. in Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021). 2021;2021. doi:10.3997/2214-4609.202134140 .
Stevanović, J., Rakitin, A.R., Stojanović, Ksenija A., "Applicability of infrared aliphatic stretching region for characterisation of oils of the same genetic type" in Conference Proceedings, 30th International Meeting on Organic Geochemistry (IMOG 2021), 2021 (2021), https://doi.org/10.3997/2214-4609.202134140 . .