A review on pore-fractures in tectonically deformed coals

S Yu, J Bo, L Ming, H Chenliang, X Shaochun - Fuel, 2020 - Elsevier
Exploitation of coalbed methane (CBM) has dual advantages of not only providing
alternative clean-energy but also effectively reducing the proneness for gas outbursts. CBM …

[PDF][PDF] Multiple point statistics: a review

P Tahmasebi - … of mathematical geosciences: Fifty years of IAMG, 2018 - library.oapen.org
Geostatistical modeling is one of the most important tools for building an ensemble of
probable realizations in earth science. Among them, multiple-point statistics (MPS) has …

Segmentation of digital rock images using deep convolutional autoencoder networks

S Karimpouli, P Tahmasebi - Computers & geosciences, 2019 - Elsevier
Segmentation is a critical step in Digital Rock Physics (DRP) as the original images are
available in a gray-scale format. Conventional methods often use thresholding to delineate …

Study on pore-crack evolution and connectivity of coal subjected to controlled electrical pulse based on CT scanning technology

F Yan, T Zeng, M Yang, S Peng, C Gao, Y Yang - Energy, 2024 - Elsevier
Controlled electric pulse (CEP) technology is a novel method for enhancing coal seam
permeability. To study the pore-crack evolution and connectivity of the coal body by CEP, a …

Fracture variation in high-rank coal induced by hydraulic fracturing using X-ray computer tomography and digital volume correlation

X Wang, J Pan, K Wang, P Mou, J Li - International Journal of coal geology, 2022 - Elsevier
Hydraulic fracturing is a key technology for improving the permeability of coal reservoirs.
Understanding the variation of hydraulically induced fractures is crucial for improving …

Pore-scale analysis of coal cleat network evolution through liquid nitrogen treatment: A Micro-Computed Tomography investigation

H Akhondzadeh, A Keshavarz, AZ Al-Yaseri… - International Journal of …, 2020 - Elsevier
Coalbed methane extraction suffers from low permeability, and liquid nitrogen treatment has
been suggested as one of the methods to address this issue. This study thus investigates …

A review of experimental and numerical modeling of digital coalbed methane: Imaging, segmentation, fracture modeling and permeability prediction

S Karimpouli, P Tahmasebi, HL Ramandi - International Journal of Coal …, 2020 - Elsevier
Coalbed methane (CBM) is a form of natural gas that is extracted from coalbeds.
Characterization of CBMs is very challenging mostly due to the very complex fracture system …

Pore distribution characteristics of various rank coals matrix and their influences on gas adsorption

J Yan, Z Meng, K Zhang, H Yao, H Hao - Journal of Petroleum Science and …, 2020 - Elsevier
Methane is primarily stored in coal matrix pores and pore size distribution has an important
effect on gas adsorption/desorption. Investigation of the relationship between pore size …

Mechanical response and strain localization in coal under uniaxial loading, using digital volume correlation on X-ray tomography images

V Vishal, D Chandra - International Journal of Rock Mechanics and Mining …, 2022 - Elsevier
A comprehensive analysis of crack initiation and propagation in coal is critical for
understanding its mechanical behavior and its impact on permeability. The finite element …

Changes in the anisotropic permeability of low-rank coal under varying effective stress in Fukang mining area, China

Z Wang, J Pan, Q Hou, Q Niu, J Tian, H Wang, X Fu - Fuel, 2018 - Elsevier
Fractures are coalbed methane (CBM) migration pathways and key factors in determining
coal reservoir permeability. During the depletion of CBM wells, the increase of effective …