Coal cleat network evolution through liquid nitrogen freeze-thaw cycling

•Promising coal cleat network evolution through liquid nitrogen freeze–thaw cycling.•More significant efficiency of latter freezing cycles compared to the first cycle.•Permeability and connectivity enhancement through freeze–thaw cycles.•Considerable coal structure damage by this fracturing techniqu...

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Veröffentlicht in:	Fuel (Guildford) 2022-04, Vol.314, p.123069, Article 123069
Hauptverfasser:	Akhondzadeh, Hamed, Keshavarz, Alireza, Ur Rahman Awan, Faisal, Zamani, Ali, Iglauer, Stefan, Lebedev, Maxim
Format:	Artikel
Sprache:	eng
Schlagworte:	Atomic force microscopy Coal Coalbed methane Computed tomography Connectivity analysis Evolution Fractures Freeze thaw cycles Freeze-thaw cycling Freeze-thawing Freezing Image enhancement Liquid nitrogen Liquid nitrogen fracturing Mechanical properties Medical imaging Micro-computed tomography Nitrogen Permeability Permeability evolution Pore connectivity Pores Porosity Scanning electron microscopy
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