Geological and reservoir modelling of coalbed methane in Karadon Region of Zonguldak Basin (Türkiye): A case study

The Zonguldak Basin stands out as Türkiye’s primary hub for bituminous coal production alongside a notable coalbed methane content of mined coal seams. In this study, we are proposing for the first time an integrated approach of geological modelling, reservoir characterization, and production foreca...

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Main Authors: Demet Banu Koralay, Turhan Ayyildiz, Mehmet Sıddık Kızıl, Sofiane Belhocine, Muhammed Emin Bulguroğlu
Format: Article
Language:English
Published: General Directorate of Mineral Research and Exploration 2025-08-01
Series:Bulletin of the Mineral Research and Exploration
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Online Access:https://dergipark.org.tr/tr/download/article-file/4839455
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author Demet Banu Koralay
Turhan Ayyildiz
Mehmet Sıddık Kızıl
Sofiane Belhocine
Muhammed Emin Bulguroğlu
author_facet Demet Banu Koralay
Turhan Ayyildiz
Mehmet Sıddık Kızıl
Sofiane Belhocine
Muhammed Emin Bulguroğlu
author_sort Demet Banu Koralay
collection DOAJ
description The Zonguldak Basin stands out as Türkiye’s primary hub for bituminous coal production alongside a notable coalbed methane content of mined coal seams. In this study, we are proposing for the first time an integrated approach of geological modelling, reservoir characterization, and production forecasting of one coalbed methane block within Zonguldak Basin to understand the potential of this unconventional resource. The study initiated with the development of a 3D geological model data from the Karadon coal mine. Results of several laboratory tests conducted on coal samples such as desorption capacity which is measured as 666.67 scf/ton is integrated into the model. A reservoir model was developed by incorporating gas composition, pressure-volume-temperature(PVT) characteristics, and special core analysis (SCAL) data. A combination of 1,2,3,4 and 5 wells scenarios is proposed to figure out the best production solution adapted to the study area. As aresult, a 5-wells configuration also known as the “5 spot wells” layout is selected. Five wells will be in the same well pad but deviated 600 meters distance in target zones. Each well in the pad includes two frac stages at two separated coal and shale interbedded intervals. The final volumetric projection suggests a cumulative gas production estimates around 1.803 billion m3 from 5 wells,which confirms the potential of coalbed methane as an important additional energy resource to Türkiye’s economy.
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institution Kabale University
issn 0026-4563
language English
publishDate 2025-08-01
publisher General Directorate of Mineral Research and Exploration
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spelling doaj-art-be33cd37ed7a449089bac8489dad98452025-08-21T06:24:52ZengGeneral Directorate of Mineral Research and ExplorationBulletin of the Mineral Research and Exploration0026-45632025-08-011771779111110.19111/bulletinofmre.169214976Geological and reservoir modelling of coalbed methane in Karadon Region of Zonguldak Basin (Türkiye): A case studyDemet Banu Koralay0https://orcid.org/0000-0002-3623-3872Turhan Ayyildiz1https://orcid.org/0000-0001-5498-8112Mehmet Sıddık Kızıl2https://orcid.org/0000-0002-3568-0777Sofiane Belhocine3https://orcid.org/0009-0004-9270-5645Muhammed Emin Bulguroğlu4https://orcid.org/0000-0002-3236-4365Pamukkale University, Faculty of Engineering, Department of Geological Engineering, 20160, Denizli, TürkiyeAnkara University, Faculty of Engineering, Department of Geological Engineering, 06830 Gölbaşı, Ankara, Türkiye.The University of Queensland, Faculty of Engineering, School of Mechanical and Mining Engineering, 4072, St Lucia, QueenslandTurkish Petroleum Corporation, Production Department, 06510 Çankaya, Ankara, TürkiyeTurkish Petroleum Corporation, Production Department, 06510 Çankaya, Ankara, TürkiyeThe Zonguldak Basin stands out as Türkiye’s primary hub for bituminous coal production alongside a notable coalbed methane content of mined coal seams. In this study, we are proposing for the first time an integrated approach of geological modelling, reservoir characterization, and production forecasting of one coalbed methane block within Zonguldak Basin to understand the potential of this unconventional resource. The study initiated with the development of a 3D geological model data from the Karadon coal mine. Results of several laboratory tests conducted on coal samples such as desorption capacity which is measured as 666.67 scf/ton is integrated into the model. A reservoir model was developed by incorporating gas composition, pressure-volume-temperature(PVT) characteristics, and special core analysis (SCAL) data. A combination of 1,2,3,4 and 5 wells scenarios is proposed to figure out the best production solution adapted to the study area. As aresult, a 5-wells configuration also known as the “5 spot wells” layout is selected. Five wells will be in the same well pad but deviated 600 meters distance in target zones. Each well in the pad includes two frac stages at two separated coal and shale interbedded intervals. The final volumetric projection suggests a cumulative gas production estimates around 1.803 billion m3 from 5 wells,which confirms the potential of coalbed methane as an important additional energy resource to Türkiye’s economy.https://dergipark.org.tr/tr/download/article-file/4839455coalbed methanezonguldak basingeological modellingreservoir simulationproduction forecast.
spellingShingle Demet Banu Koralay
Turhan Ayyildiz
Mehmet Sıddık Kızıl
Sofiane Belhocine
Muhammed Emin Bulguroğlu
Geological and reservoir modelling of coalbed methane in Karadon Region of Zonguldak Basin (Türkiye): A case study
Bulletin of the Mineral Research and Exploration
coalbed methane
zonguldak basin
geological modelling
reservoir simulation
production forecast.
title Geological and reservoir modelling of coalbed methane in Karadon Region of Zonguldak Basin (Türkiye): A case study
title_full Geological and reservoir modelling of coalbed methane in Karadon Region of Zonguldak Basin (Türkiye): A case study
title_fullStr Geological and reservoir modelling of coalbed methane in Karadon Region of Zonguldak Basin (Türkiye): A case study
title_full_unstemmed Geological and reservoir modelling of coalbed methane in Karadon Region of Zonguldak Basin (Türkiye): A case study
title_short Geological and reservoir modelling of coalbed methane in Karadon Region of Zonguldak Basin (Türkiye): A case study
title_sort geological and reservoir modelling of coalbed methane in karadon region of zonguldak basin turkiye a case study
topic coalbed methane
zonguldak basin
geological modelling
reservoir simulation
production forecast.
url https://dergipark.org.tr/tr/download/article-file/4839455
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AT mehmetsıddıkkızıl geologicalandreservoirmodellingofcoalbedmethaneinkaradonregionofzonguldakbasinturkiyeacasestudy
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