Coalbed methane (CBM) drainage in underground coal mining is of significance to
guarantee mining process safety and bring valuable environmental benefits, as the drainage …

Coalbed methane (CBM) plays an important role in securing world energy supply and
transiting electricity generation from fossil fuel to renewables. CBM reservoirs are generally …

Liquid nitrogen freeze–thaw has been used in oil, shale gas and coalbed methane
exploitation as an efficient fracturing technology. This paper aimed to study the effect of …

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 …

The high-voltage electrical pulses (HVEP) technology is the most potential method to
improve the rate of penetration (ROP) in deep hard formations. A detailed understanding of …

With the deepening of the development of natural resources, the difficulty of rock breaking is
increasing. Novel efficient rock-breaking technology and matching rock-breaking tools are …

Plasma channel drilling (PCD), which is also known as high-voltage electric pulse drilling, is
a highly efficient rock-breaking drilling technology with great development potential. This …

The aims of this research are to quantitatively evaluate the complexity of the pore structure in
coal frozen with liquid nitrogen (LN 2) and then study the influence of the modified pore …

The pore and microcrystalline structure of coal are studied by combining field emission-
scanning electron microscopy (FE-SEM), nuclear magnetic resonance (NMR), and Raman …

High-voltage electrical pulses (HVEP) can potentially be used to increase the yield of low-
permeability coalbed methane (CBM) reservoirs. This study highlights the pore change and …