Geological Considerations for the Economic Evaluation of Turkish Oil Shale Deposits and Their Combustion-Pyrolysis Behavior

The oil shale deposits in Turkey are widely distributed in middle and western Anatolia. Turkish oil shales are of Palaeocene-Eocene and middle upper Miocene age. Current reserves of oil shales are approximately 2,220 million tons (total reserve) and mainly are located in Himmetoglu, Seyitomer, Beypazari, and Hatildag deposits. Some petrological, geochemical, Fisher Assay, and fluidized combustion tests are performed for these oil shale fields, and it was concluded that Himmetoglu oil shale is the most appropriate for domestic and industrial utilization. On the other hand, differential scanning calorimetry-pressurized (DSC-PDSC) and thermogravimetry (TG/DTG) experiments were performed with these oil shale samples. In pyrolysis experiments, oil shale samples showed one exothermic effect at each total pressure studied. A general trend to decreasing in activation energy with increasing pressure in pyrolysis, and increasing in activation energy with increasing pressure was observed in combustion experiments.


Performance Estimation of Water Flooding in Oil Recovery
Kök, Mustafa Verşan (Informa UK Limited, 2009-01-01)
In this research, a petroleum field (Field-A) having approximately 23.2 API gravity oil in a carbonate formation from southeast Turkey was studied. Field-A was put on production in 1989 and produced till now, which is very close to its economic lifetime. Thus, it was considered as a candidate for enhanced oil recovery and water injection. Reservoir rock and fluid data were first interpreted with available well logging, core, and drill stem test data. The data were then merged into CMG/STARS simulator. A his...
Beneficiation of Himmetoglu oil shale by flotation as a solid fuel substitute. Part 2. Process optimization by a statistical approach
Altun, Naci Emre; Hwang, HY; Bagci, AS (American Chemical Society (ACS), 2006-01-01)
The effects of the important flotation parameters on the cleaning process of the Himmetoglu oil shale from Turkey were investigated. The individual and multiple interaction effects of conditioning time, flotation time, pulp density, particle size, and frother dosage were determined using statistical analysis and factorial design of experiments. The influence of these parameters on the cleaning performance were evaluated in terms of ash yield, calorific value, and combustible recovery of the concentrates. XR...
Permeability reduction due to formation damage by drilling fluids
Iscan, A.G.; Kök, Mustafa Verşan; Bagci, A.S. (Informa UK Limited, 2007-01-01)
In this study, investigation of permeability reduction due to formation damage by invaded drilling fluids of sandstone-based, lime-containing core plugs from the southeastern region of Turkey were studied. The tests were performed by using dynamic filtration set-up that was constructed at the laboratory. In the experiments, nine core plugs of 7 cm length and 3.81 cm (1.5 in) diameter were used. Three different drilling fluid types using two different polymers were prepared and tests were made at three diffe...
Evaluation of a Turkish low quality oil shale by flotation as a clean energy source: Material characterization and determination of flotation behavior
Altun, Naci Emre; Hwang, Jiann-Yang; Bagci, A. Suat (Elsevier BV, 2006-09-01)
Evaluation possibility of a low quality Turkish oil shale from Beypazari, Ankara as an alternative clean solid fuel by froth flotation technique was investigated. Oil shale sample was characterized with mineralogical analysis, XRD and FTIR spectrum studies for its mineral content and surface characteristics. The flotation behavior of the sample and extent of cleaning were determined with respect to non-ionizing and ionizing collectors of anionic and cationic types. The effects of collector dosages and pulp ...
Application of different EOR techniques for the energy and recovery of Ashal'cha oil field
Kök, Mustafa Verşan; Nurgaliev, Danis K. (Informa UK Limited, 2018-01-01)
In this research, utilizing the reservoir and produced oil data, different enhanced oil recovery (EOR) techniques known as in-situ combustion, CO2 flooding, and steam flooding were applied for Ashal'cha oil field in Republic of Tatarstan, Russia. For this purpose, In-Situ Combustion Predictive Model (ICPM), CO2 Miscible Flood Predictive Model (CO2PM) and Steam-flood Predictive Model (SFPM) are used. In addition to oil recovery, economic analysis of the discussed EOR applications was also conducted. By using...
Citation Formats
M. V. Kök, “Geological Considerations for the Economic Evaluation of Turkish Oil Shale Deposits and Their Combustion-Pyrolysis Behavior,” ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, pp. 323–335, 2010, Accessed: 00, 2020. [Online]. Available: