Calculation of coal cleats spacing for methane degassing by image processing

Coal bed methane is one of the clean energy sources in the world. Methane molecules are confined inside the pores of coals and when the gas drainage wells are drilled into the coal seams, due to the resulted pressure difference. Coal cleats are spread all over the coal seam as face and butt cleats a...

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Main Authors: Adel Taheri, Farhang Sereshki, Fatemeh Sadat Rohani
Format: Article
Language:English
Published: SAGE Publishing 2025-01-01
Series:Energy Exploration & Exploitation
Online Access:https://doi.org/10.1177/01445987241267962
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author Adel Taheri
Farhang Sereshki
Fatemeh Sadat Rohani
author_facet Adel Taheri
Farhang Sereshki
Fatemeh Sadat Rohani
author_sort Adel Taheri
collection DOAJ
description Coal bed methane is one of the clean energy sources in the world. Methane molecules are confined inside the pores of coals and when the gas drainage wells are drilled into the coal seams, due to the resulted pressure difference. Coal cleats are spread all over the coal seam as face and butt cleats and play an essential role in the methane gas drainage operation from coal mines. Calculating the coal cleats spacing makes great help in modeling the amount of emitted gas followed by calculating the spacing of gas suction wells. Furthermore, the time required for gas drainage will be determined. Computer-based image processing technique has been utilized to identify the cleats spacing. In this study, three-dimensional computed tomography scan images were prepared for coal samples from Tabas Coal Mine in Iran. Computer-based image processing technology was conducted to determine the coal cleats. Their spacing was then calculated. Based on the results obtained using image processing with computer, the average distance between face cleats was 20 to 30 mm and the distance between butt cleats was 15 to 25 mm. The results of this study are used to modeling the amount of methane gas in the coal cleats. Based on this modeling, the amount of released gas and the distance between the wells can be designed.
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institution Kabale University
issn 0144-5987
2048-4054
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publishDate 2025-01-01
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series Energy Exploration & Exploitation
spelling doaj-art-e35c1958a5a04c59b89ba08c7673f4e02025-01-15T11:05:11ZengSAGE PublishingEnergy Exploration & Exploitation0144-59872048-40542025-01-014310.1177/01445987241267962Calculation of coal cleats spacing for methane degassing by image processingAdel Taheri0Farhang Sereshki1Fatemeh Sadat Rohani2 Department of Earth Sciences Engineering, , Arak, Iran Faculty of Mining, Petroleum and Geophysics Engineering, , Shahrood, Iran Faculty of Computer Engineering and IT, , Shahrood, IranCoal bed methane is one of the clean energy sources in the world. Methane molecules are confined inside the pores of coals and when the gas drainage wells are drilled into the coal seams, due to the resulted pressure difference. Coal cleats are spread all over the coal seam as face and butt cleats and play an essential role in the methane gas drainage operation from coal mines. Calculating the coal cleats spacing makes great help in modeling the amount of emitted gas followed by calculating the spacing of gas suction wells. Furthermore, the time required for gas drainage will be determined. Computer-based image processing technique has been utilized to identify the cleats spacing. In this study, three-dimensional computed tomography scan images were prepared for coal samples from Tabas Coal Mine in Iran. Computer-based image processing technology was conducted to determine the coal cleats. Their spacing was then calculated. Based on the results obtained using image processing with computer, the average distance between face cleats was 20 to 30 mm and the distance between butt cleats was 15 to 25 mm. The results of this study are used to modeling the amount of methane gas in the coal cleats. Based on this modeling, the amount of released gas and the distance between the wells can be designed.https://doi.org/10.1177/01445987241267962
spellingShingle Adel Taheri
Farhang Sereshki
Fatemeh Sadat Rohani
Calculation of coal cleats spacing for methane degassing by image processing
Energy Exploration & Exploitation
title Calculation of coal cleats spacing for methane degassing by image processing
title_full Calculation of coal cleats spacing for methane degassing by image processing
title_fullStr Calculation of coal cleats spacing for methane degassing by image processing
title_full_unstemmed Calculation of coal cleats spacing for methane degassing by image processing
title_short Calculation of coal cleats spacing for methane degassing by image processing
title_sort calculation of coal cleats spacing for methane degassing by image processing
url https://doi.org/10.1177/01445987241267962
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AT farhangsereshki calculationofcoalcleatsspacingformethanedegassingbyimageprocessing
AT fatemehsadatrohani calculationofcoalcleatsspacingformethanedegassingbyimageprocessing