Department of Petroleum and Natural Gas Engineering, Article

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Numerical investigation of single and multiple DBD plasma actuators integration on airfoils at low Reynolds number Arslan, Mehmet; DURNA, AHMET SELİM (2025-11-10) The growing interest in unmanned air vehicles necessitates effective flow control techniques for the low Reynolds number regime. While Dielectric Barrier Discharge (DBD) plasma actuators offer a promising solution, the cur...
Case Study of Dual-Signal Processing of DAS-VSP Vibrator Data From a 3D Survey in a Geothermal Reservoir Poletto, Flavio; Bellezza, Cinzia; Böhm, Gualtiero; Meneghini, Fabio; Chalari, Athena; Stork, Anna; Parlaktuna, Mahmut; Şentürk, Erdinç; Draganov, Deyan; van Otten, Gijs; Durucan, Sevket (2025-09-01) The three-dimensional (3D) distributed acoustic sensing (DAS) vertical seismic profile (VSP) technique is an effective tool to characterize subsurface reservoirs, enabling the use of large and densely sampled borehole rece...
A framework for regional high-level technical screening of promising CCUS value chains Gravaud, Isaline; Lothe, Ane Elisabet; Ringstad, Cathrine; Falck Da Silva, Eirik; Skagestad, Ragnhild; Shogenova, Alla; Shogenov, Kazbulat; Sousa, Leandro; Wójcick, Adam; Sınayuç, Çağlar; Yıldırım, Betül; Bülbül, Sevtaç; Anthonsen, Karen Lyng; Perimenis, Anastasios (2025-09-01) To support the European Green Deal and accelerate climate mitigation, the CCUS ZEN project conducted a high-level technical screening of Carbon Capture, Utilization, and Storage (CCUS) value chains in the Baltic and Medite...
Thermo-Hydro-Mechanical–Chemical Modeling for Pressure Solution of Underground sCO2 Storage Erol, Selçuk (2025-09-01) Underground production and injection operations result in mechanical compaction and mineral chemical reactions that alter porosity and permeability. These changes impact the flow and, eventually, the long-term sustainabili...
An experimental investigation of hydraulic fracturing mechanisms in menderes metamorphic rocks: Prospects for enhanced geothermal systems Aydın, Hakkı; Camcı, Umutcan; Akın, Serhat (2025-07-01) Hydraulic fracturing is a critical technique for stimulating low-permeability geothermal reservoirs, such as Enhanced Geothermal Systems (EGS) and Hot Dry Rock (HDR). This study investigates the hydraulic fracturing mechan...
Petrogenesis and comprehensive thermal assessment of the Dikili-Bergama region, western Anatolia Ayzit, Tolga; Baba, Alper (2025-06-01) Various methods are available to evaluate the thermal properties and energy potential of geothermal fields. The heat flow method is crucial for thermal modeling and understanding geological evolution. It helps to assess th...
Bayesian uncertainty quantification in temperature simulation of borehole heat exchanger fields for geothermal energy supply Mohammadi, Hesam Soltan; Ringel, Lisa Maria; Bott, Christoph; Erol, Selçuk; Bayer, Peter (2025-04-01) Accurate temperature prediction is crucial for optimizing the performance of borehole heat exchanger (BHE) fields. This study introduces an efficient Bayesian approach for improving the forecast of temperature changes in t...
Optimizing inhibitor injection in geothermal wells with electrical submersible pump Aydin, Hakki; Tezel, Seray Isik; Erol, Selçuk (2025-03-01) Electrical submersible pump (ESP) is a reliable artificial lift method to extend productive lifespan of geothermal wells. In the geothermal industry a common practice involves installing ESPs below the well's flashing dept...
Investigating terminal film thickness in oil spreading dynamics under opposing net surface tension force on calm water Doğan, Mehmet Onur; Durgut, İsmail (2025-02-01) Heavy oils, particularly in cold water, spread slowly and eventually stop at a certain film thickness, known as the terminal film thickness. A few studies have specifically addressed the conditions and physical mechanisms ...
Comparing Reinjection Strategies in Naturally Fractured Geothermal Reservoirs: A 3D Numerical Modeling Approach Aydın, Hakkı (Afyon Kocatepe Universitesi Fen Ve Muhendislik Bilimleri Dergisi, 2025-1-28) The strategic placement of re-injection wells within geothermal reservoirs is a pivotal determinant of sustainable and maximized thermal recovery. Minimizing temperature decline and maintaining effective pressure support o...
Combustion characteristics and efficiency of raw and clean lignite samples by thermal analysis techniques: TG–DTG–MID, DSC, and PDSC applications Kök, Mustafa Verşan; Matuschek, Georg; Varfolomeev, Mikhail A.; Nurgaliev, Danis K. (2025-01-01) This study investigates the combustion characteristics and efficiency of six distinct lignite samples, comparing their untreated and treated forms. The experimental approach employs simultaneous thermogravimetry coupled wi...
The Early Determination Method of Reservoir Drive of Oil Deposits Based on Jamalbayli Indexes Jamalbayov, Muhammad Asaf; Yıldırım, Betül; Abdullazada, Atilla (2024-07-01)
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...
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...
Geochemical and thermal characterization and kinetics of oil shale samples from Çeltek, Türkiye Kök, Mustafa Verşan (2024-01-01) This research delves into the geochemical aspects, non -isothermal thermogravimetric analysis, and model -free kinetics of oil shale samples from the & Ccedil;eltek region in Amasya, T & uuml;rkiye. Shifting the focus to t...
Stochastic 1-D reactive transport simulations to assess silica and carbonate phases during the CO 2 reinjection process in metasediments Erol, Selçuk (2024-01-01) One proposed method to mitigate carbon emission is to mineralize the CO 2 in deep geothermal reservoirs while mixing the coproduced CO 2 with the effluent fluid for reinjection. The injection fluid temperature fluctuates d...
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...
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...
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...

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