As key flow properties for coalbed methane production, greenhouse gas reduction through
CO 2 storage in coal and gas drainage to improve mining safety, knowledge of gas diffusion …

The commercial extraction of methane from coal beds is now well established in a number of
countries throughout the world, including the USA, Australia, China, India and Canada …

As with other reservoir types permeability is a key controlling factor for gas migration in
coalbed methane reservoirs. The absolute permeability of coal reservoirs changes …

The pore structures in coal are the occurrence and migration space of coalbed methane
(CBM). Therefore, the research on the pore structures in coal is of great significance for the …

Coal spontaneous combustion and gas coupling disasters are the highest percentage of
serious accidents in coal mines, causing the most serious disasters. China is one of the …

Although permeability data for different gas shales have been reported previously and
attempts have been made to match permeability with empirical correlations, theoretical …

In this study, we develop a new permeability model that incorporates the matrix–fracture
interactions. In addition, a newly defined internal swelling coefficient (f) has been introduced …

There has been a long history of using X-rays to visualize coal and its transitions during
various treatments. Advances and improved availability has allowed the application of X-ray …

Understanding the response mechanism of deep mining and disaster prevention and control
technology is of practical significance to safe and efficient coalmining In view of the complex …

Coal is a complex dual-porosity porous medium that consists of both fractures and coal
matrices containing pores. The gas seepage characteristics in coals are closely related to …