Permeability of coal reservoirs influence the extraction of coal gas from coal seams. Twelve
coal samples were collected at an anticline and a syncline of the No. 3 coal seam in the Sihe …

Permeability is the most crucial property of coal in relation to coalbed methane production
and CO2 sequestration. Due to coal's anisotropic structure and mechanical properties, its …

At present, gas drainage technology from boreholes is an effective means of preventing gas
disasters in deep mines and realise better utilisation of gas. To study the spatio-temporal …

To examine the permeability enhancement effect of the carbon disulfide (CS 2) extraction on
block coal samples, in this study, different cylindrical samples of anthracite coal were …

The heterogeneous and anisotropic nature of coal can have an important impact on its
permeability. Coal permeability is usually directly related to the stress and hence, it is of …

Gas pre-drainage through underground-to-inseam (UIS) horizontal boreholes is one of the
common practices for the management of environmental and safety concerns in …

Geological constraint of massive gas production is the realistic technical predicament faced
by coalbed methane (CBM) recovery worldwide. The primary impact factor that induces …

The near-source, multistream, and rapidly changing sedimentary environments of
conglomerate reservoirs lead to reservoir characteristics such as strong heterogeneity and …

Due to the density contrast between the hydrate and methane gas, the pore pressure is
accumulated in the sediment during the decomposition process of methane hydrate. This …

Deep coal reservoirs are in a high in-situ stress environment, and their permeability change
characteristics are quite different from those of shallow ones. In order to study the effect of …