Coalbed methane (CBM) drilling technology is critical in achieving efficient CBM
development. The geological conditions for CBM development in China are complex …

China is vigorously promoting the development of coalbed methane (CBM) resources
because CBM is cleaner than coal and a hazardous gas in coal mining. However, the CBM …

Coal and coalbed methane (CBM) coordinated exploitation is a key technology for the safe
exploitation of both resources. However, existing studies lack the quantification and …

Various sizes of pores in coal, which are generally formed by organic matter during the
coalification process, have a direct influence on coalbed methane extraction. However, few …

Five groups of middle to high rank coal samples (R o, max value between 1.87 and 3.01%)
were tested under different confine pressures using nuclear magnetic resonance (NMR) …

Nuclear magnetic resonance (NMR) experiments of stress sensitivity on the pore and
fracture systems of coal samples with different ranks were performed. Pore compressibility …

The temporal and spatial production characteristics of coalbed methane (CBM) wells in the
Fanzhuang Block of the Southern Qinshui Basin, the first commercial CBM-producing basin …

Whether a coalbed methane (CBM) well achieves high yield is controlled by various factors.
Structural and hydrological control models of CBM productivity in vertical wells were built …

Coal porosity and permeability are highly stress-sensitive. Although the stress-dependent
permeability behaviour of coal has been well documented in the literature, few studies are …

This study of geological and hydrogeological conditions in the coal-bearing Shanxi and
Taiyuan formations in the Anze Block, southern Qinshui Basin, reveals the water-flow …