Over the past decade, the exploration and development of deep coalbed methane (CBM)
resources in China have attracted significant attention for their immense potential. Typically …

Nuclear magnetic resonance (NMR) has been applied widely and successfully in
conventional and unconventional reservoirs, and can be used to investigate petrophysical …

As a clean energy resource, coalbed methane (CBM) has drawn worldwide attention.
However, the CBM reservoir has strong adsorption capacity and low permeability and thus …

Abstract Changes of heat and energy during methane adsorption and desorption are
essential factors affecting the production of coalbed methane. To characterize adsorption …

Abstract Liquid nitrogen (LN 2), a non-aqueous medium, has attracted attention in recent
years as a fluid for fracturing in the petroleum/energy industry. This study proposes a freeze …

Freezing and thawing cycles occur with cyclic liquid nitrogen (LN2) injection in coal. The
freeze–thaw treatment damages the pore structure of coal and thus increases its …

The pore structure and seepage characteristics of coal are of great significance to the study
of seepage effect of coal seam water injection. Because the current methods for …

Unconventional natural gas, including coalbed methane and shale gas, has become
important natural gas resources. Coal and shale reservoirs are characterised by low porosity …

Microfracture structures of coal seams are the key parameters in the context of enhanced
coalbed methane (ECBM) recovery as they determine permeability and productivity …

Fractures, vugs, and pores constitute the main pore space in carbonate reservoirs. The
associated pore structure—which is of key importance in terms of hydrocarbon production …