Tectonic coal, formed after the intact coal being subjected to long-term intense squeezing,
shearing and deformation, is characterised by brittle or ductile damaged coal body, with the …

Coupled coal–gas interaction in coal seams is crucial to the efficient recovery of Coalbed
methane (CBM), and carbon dioxide-enhanced CBM (CO2-ECBM). Coal is physically …

To describe a low-field nuclear magnetic resonance (NMR) method for quantifying pore–
fracture fractal dimensions and their influence on effective porosity and permeability, we …

Cleat and permeability altered by CO2 injection are key issues for enhanced coalbed
methane production and CO2 geo-sequestration into unminable coal seams. As the main …

Coal and gas outburst (outburst) is one of the most serious disasters in the underground
mining industry. Understanding the mechanism of outbursts is essential to predict and …

As the effective stress increases, low-permeability rock undergoes fairly small porosity
changes, but significant decrease in the permeability. Empirical relationships based on …

The coal strength and deformation properties are key factors affecting safe coal mining and
high-efficiency coalbed methane (CBM) development. In this paper, reconstituted coal …

Coal bed Methane (CBM), a primary component of natural gas, is a relatively clean source of
energy. Nevertheless, the impact of considerable coal mine methane emission on climate …

Abstract Supercritical carbon dioxide (ScCO 2)-based reservoir fracturing associated with
CO 2-enhanced shale gas recovery is a promising technology to reduce water utilization in …

The complexity of the interactions between coal and gas is an obstacle to creating a
quantitative description of the outburst mechanism. In addition to free gas acting in the form …