Department of Petroleum and Natural Gas Engineering

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Kök, Mustafa Verşan (237)
Akın, Serhat (139)
Parlaktuna, Mahmut (64)
Sınayuç, Çağlar (39)
Varfolomeev, Mikhail A. (21)

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Fuel Technology (133)
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Recent Submissions

Numerical modeling of the CO2 injection in the Kızıldere geothermal field using multiple inter-well tracer tests Sevindik, Doguhan Barlas; Erol, Selcuk; Akın, Serhat (2024-05-01) Many geothermal power plants in Turkey emit high amounts of non-condensable gas (NCG), consisting mainly of CO2. Thus, it is crucial to mitigate the NCG emissions by re-injecting the captured gas back into the reservoir. I...
Experimental study and kinetic modeling of high temperature and pressure CO2 mineralization Berndsen, Maximilian; Erol, Selçuk; Akın, Taylan; Akın, Serhat; Nardini, Isabella; Immenhauser, Adrian; Nehler, Mathias (2024-02-01) The potential for in-situ CO2 sequestration was analyzed experimentally for one basaltic hyaloclastite sample from the Nesjavellir geothermal reservoir in Iceland and three metasedimentary rock samples from the Kızıldere g...
Rheological and PVT Behavior of Synthetic Based Drilling Fluids Under Temperature-Pressure Conditions of the Riser in Deepwater Drilling Yanik, S.; Gucuyener, I.H.; Sınayuç, Çağlar; Akel, O.F. (2024-01-01) Invert emulsion drilling fluids (IEDFs) are water-in-oil emulsions in which the water phase is usually calcium chloride brine as the internal phase and the non-aqueous fluid forms the external phase. They are widely used t...
Characterization and kinetics of diesel-biodiesel blends by non-isothermal thermal analysis techniques Kök, Mustafa Verşan; Güresci, Ece Topa; Varfolomeev, Mikhail A.; Nurgaliev, Danis K. (2024-01-01) This study investigated the combustion-pyrolysis characteristics and kinetics of blends consisting of diesel and biodiesel at varying concentrations. To assess these characteristics, thermogravimetry (TG-DTG) and a differe...
Comparison of Reservoir Simulation Techniques for Gas Reservoirs: Semi-Analytical Tank Flow Model Approach versus Finite Volume Solutions Doğan, Mehmet Onur; Jamalbayli, Tayfun; Jamalbayov, Mahammad (2023-11-22) Comparison of Reservoir Simulation Techniques for Gas Reservoirs: Semi-Analytical Tank Flow Model Approach versus Finite Volume SolutionsMehmet Onur Doğan a, Tayfun Jamalbayli* a, Mahammad Jamalbayov ba Middle East Technic...
New Definition and Numerical Analysis of Local Thermal Non-Equilibrium (LTNE) Conditions in Porous Media: Considering Convection and Conduction Processes for Darcy Scale Problems Doğan, Mehmet Onur; Tavakkoli Osgouei, Yashar (2023-11-22) New Definition and Numerical Analysis of Local Thermal Non-Equilibrium (LTNE) Conditions in Porous Media: Considering Convection and Conduction Processes for Darcy Scale ProblemsMehmet Onur Dogan a, *, Yashar Tavakkoli ...
Extended Multiple Interacting Continua (E-MINC) Model Improvement with a K-Means Clustering Algorithm Based on an Equi-dimensional Discrete Fracture Matrix (ED-DFM) Model Doğan, Mehmet Onur (2023-11-01) Modeling fluid flow in fractured reservoirs can be complicated, not only because ofthe permeability differences between fractures and matrix, but also due to the com-plex network of fractures. If the exact fracture geometr...
TÜRKİYE’DEKİ İKLİM DEĞİŞİKLİĞİ VE KARBON YAKALAMA-DEPOLAMA UYGULAMALARI İLE İLİŞKİLİ MEVZUATIN İNCELENMESİ Bülbül, Sevtaç; Sınayuç, Çağlar; Doğan, Mehmet Onur (2023-09-29) İklim değişikliğinin etkilerinin azaltılabilmesi için gerekli teknik yeterliliğin sağlanmasının yanı sıra ilgili faaliyetlerin uygulanmasına imkân veren yasal düzenlemelerin geliştirilmesi de büyük önem taşımaktadır. Ka...
A Numerical Study on the Effect of Flue Gas Composition on Oil Recovery in Low-Permeability Formations Tavakkoli Osgouei, Yashar; Doğan, Mehmet Onur; Sınayuç, Çağlar (2023-09-29) The production of heavy oil is challenging because of its higher viscosity and lower mobility. Although thermal-based methods are useful to cope with these problems through heat injection, the application of thermal rec...
Minimization Of The Noise In The Calculated Pressure Derivative Data For The Interpretation Of Transient Tests Coşar, Doğuhan; Sınayuç, Çağlar (2023-09-29) Well tests are conducted to estimate essential reservoir parameters like permeability and skin factor. Pressure data is recorded at regular intervals during these tests, which are crucial for predicting the production po...
GÜNEYDOĞU TÜRKİYE’DEKİ DADAŞ ŞEYLİNİN JEOMEKANİK ÖZELLİKLERİNE GÖRE ÇATLATILABİLİRLİK DEĞERLENDİRMESİ Cihaner, Oğuz; Yıldırım, Betül (2023-09-28) Ankonvansiyonel (geleneksel olmayan) bir şeyl rezervuar sisteminde, kaynak kayaç, rezervuar kayaç ve örtü kayaç, aynı şeyl formasyonu tarafından temsil edilir. Şeyl rezervuarları, ultra düşük geçirgenliğe sahip son derece ...
Petrol ve Doğal Gaz Yıldırım, Betül (Anadolu University, 2023-09-01)
CO2 Dissolution in the reservoir brine: An experimental and simulation-based approach Aydın, Hakkı; Akın, Serhat (2023-07-01) This study benefits from carbon dioxide gas (CO2) dissolution experiments to mimic CO2 dissolution behavior under reservoir conditions. A unique experimental setup, consisting of a batch reactor, gas flow meter, and a sa...
Heat Extraction at High Flow Rates by Fracture Plugging in Geothermal Reservoirs from Pore to Darcy Scale Considering Local Thermal Non-Equilibrium (LTNE) Conditions Tavakkoli, Yashar; Doğan, Mehmet Onur; Akın, Serhat (2023-05-22) The existence of fracture network in porous media can have positive or negative effects on matrix fracture transfer depending on the flow rate. In higher flow rates the efficiency of heat extraction decreases in fractured...
Update for reactive transport modeling of the Kızıldere geothermal field to reduce uncertainties in the early inspections Akın, Taylan; Akın, Serhat (2023-5-01) The development of carbon capture and storage techniques has become essential to reduce and mitigating CO2 emissions to the atmosphere. CarbFix1 and CarbFix2 projects carried out in Iceland demonstrated that the emissio...
Modelling reinjection of two-phase non-condensable gases and water in geothermal wells Leontidis, Vlasios; Niknam, Pouriya H.; Durgut, Ismail; Talluri, Lorenzo; Manfrida, Giampaolo; Fiaschi, Daniele; Akın, Serhat; Gainville, Martin (2023-03-01) Steam production from high enthalpy geothermal systems is frequently accompanied by the emission of non-condensable gases (NCGs), initially dissolved in the liquid phase or mixed in the vapour phase at depth in the reservo...
Modeling of Chloride and Carbon Dioxide Injection at Kızıldere Geothermal Field Sevindik, Doğuhan Barlas; Akin, Taylan; Akın, Serhat (2023-02-10) Re-injection process of the produced fluids back into the reservoirs is a widely recognized method to maintain the reservoir pressure and prolong the life-cycle of the geothermal fields. In addition, environmental awarene...
Recent Soil Carbon Dioxide Flux Measurements at Kızıldere Geothermal Field Tokel, Ali Berkay; Akın, Serhat; Akin, Taylan; Sevindik, Doğuhan Barlas (2023-02-10) Geothermal fields in the Western part of Turkey are known for their significant carbon dioxide content that results in considerably high amounts of gas emissions from geothermal power plants during electricity production....
Monte Carlo Model Simulations of Tracer Tests to Determine Fracture Aperture Size Range in an Anisotropic Geothermal Reservoir Akin, Taylan; Akın, Serhat (2023-02-10) The predictive modeling of flow and transport processes in geothermal reservoirs is challenging due to the complex nature of fracture networks. Tracer tests are traditionally used to characterize such reservoirs for susta...
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. (2023-02-01) 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 cha...

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