Decomposition behavior and kinetics of Beydili and Ihsangazi oil shale deposits (Turkiye) by TG-DTG-MS

Kök, Mustafa Verşan
Varfolomeev, Mikhail A.
Nurgaliev, Danis K.
This research mainly investigates the decomposition behavior and kinetics of Beydili and Ihsangazi oil shale deposits (Türkiye) by TG-DTG and MS techniques. In the initial stage of the research, geochemical and organic characterization (total organic carbon, rock-eval, fisher assay, x-ray fluorescence, etc.) of the oil shale samples were determined. TG-DTG-MS analyses of the oil shale samples were performed at three different heating rates in an air atmosphere. In all the oil shale samples studied, the TG-DTG curves indicated that the decomposition of oil shale samples followed two successive reaction stages in different temperature intervals, known as pyrolysis and mineral decomposition. In these two stages, reaction intervals, peak temperature, mass loss, derivative mass loss rate values, and gaseous constituent (MS analysis) of oil shale samples are all determined. At the same time, the different combustibility indices, such as the ignition index, combustion index, and reactivity of oil shale samples, are also determined. Also, for each reaction region, activation energy values were calculated using two different model-free methods known as Kissinger - Akahira – Sunose (KAS) and Ozawa - Flynn – Wall (OFW). In pyrolysis and mineral decomposition regions, the activation energy values varied between 73.9 and 186.4 kJ/mol and 103.3–297.1 kJ/mol.


Heating rate effect on the DSC kinetics of oil shales
Kök, Mustafa Verşan (2007-12-01)
This research was aimed to investigate the combustion and kinetics of oil shale samples (Mengen and Himmetoglu) by differential scanning calorimetry (DSC). Experiments were performed in air atmosphere up to 600 degrees C at five different heating rates. The DSC curves clearly demonstrate distinct reaction regions in the oil shale samples studied. Reaction intervals, peak and burn-out temperatures of the oil shale samples are also determined. Arrhenius kinetic method was used to analyze the DSC data and it w...
Source rock potential and organic facies properties of the oligo-miocene deposits in the Pasinler-Horasan, Tercan-Aşkale Basins (East Anatolia)
Tekin, Tansel; Günal Türkmenoğlu, Asuman; Department of Geological Engineering (2002)
The study involves the investigations of source rock potential and their organic facies characteristics and the depositional conditions of the Oligo-Miocene deposits in the Tercan-Aşkale and Pasinler-Horasan Basins (Eastern Anatolia). For this purpose, seven stratigraphic sections from each basin are studied. Organic geochemical and organic petrographic (microscopy based organic facies study) analyses are carried out by using a total of 102 surface samples. The studied sections are composed dominantly of cl...
Oxidation Behavior of Light Crude Oil and Its SARA Fractions Characterized by TG and DSC Techniques: Differences and Connections
Yuan, Chengdong; Varfolomeev, Mikhail A.; Emelianov, Dmitrii A.; Eskin, Aleksey A.; Nagrimanov, Ruslan N.; Kök, Mustafa Verşan; Afanasiev, Igor S.; Fedorchenko, Gennadii D.; Kopylova, Elena V. (American Chemical Society (ACS), 2018-01-01)
This research is intended to reveal the difference and connection of oxidation behavior between crude oil and its SARA fractions. Thermogravimetry (TG) and differential scanning calorimetry (DSC) techniques were used to characterize oxidation behavior. The results showed that the oxidation behavior of individual SARA components exhibited an obvious difference. Saturates showed a weak high-temperature oxidation (HTO) region. Asphaltenes generated more heat in HTO than in the low-temperature oxidation (LTO) r...
Reservoir heterogeneity of Ordovician sandstone reservoir (Bedinan Formation, SE Turkey): Diagenetic and sedimentological approachs
Yildiz, Gokay; Yılmaz, İsmail Ömer (Elsevier BV, 2020-08-01)
The sandstone-bearing reservoir levels (Bedinan Formation) in the Diyarbakir Basin, SE Turkey show strong heterogeneity in porosity, permeability and capillary pressure, which influences oil production rates of the studied 6 wells and beclouds the prediction of hydrocarbon reserves. Therefore, comprehensive understanding of the sandstone reservoir characteristics has been necessitated to optimize its ultimate hydrocarbon recovery, maximize its lifetime and to make more accurate performance predictions for t...
Source rock characterization of the shales and mudstones of the Campanian–Maastrichtian Haymana Formation, Haymana Basin, Central Anatolia, Turkey
Yıldırım, Levent Taylan Özgür; Yılmaz, İsmail Ömer; Sınayuç, Çağlar; Department of Geological Engineering (2022-3-03)
This study investigates the petroleum potential of the shales and mudstones of the Campanian-Maastrichtian Haymana Formation in the Haymana Basin, Turkey. Lithofacies, pore structure, and source rock characteristics of the shales and mudstones are examined using stratigraphical, sedimentological, petrophysical, and organic geochemical methods along five stratigraphic sections and other sampling sites. The depositional model presents a facies distribution within submarine canyon, inner fan, mid fan, and oute...
Citation Formats
M. V. Kök, M. A. Varfolomeev, and D. K. Nurgaliev, “Decomposition behavior and kinetics of Beydili and Ihsangazi oil shale deposits (Turkiye) by TG-DTG-MS,” JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, vol. 221, no. 3, pp. 1–14, 2023, Accessed: 00, 2023. [Online]. Available: