Coalbed methane is a significant source of in the atmosphere, which potent greenhouse gas with considerable contribution to global warming, thus it great importance remove coalbed before emission. Exploring economical non-noble metal catalysts for catalytic combustion (CMC) has been wide concern mitigate effect caused by emitted low-concentration methane. Herein, series Mn-doped Co3O4 have synt...

Microbial methane from coal beds accounts for a significant and growing percentage of natural gas worldwide. Our knowledge of physical and geochemical factors regulating methanogenesis is still in its infancy. We hypothesized that in these closed systems, trace elements (as micronutrients) are a limiting factor for methanogenic growth and activity. Trace elements are essential components of enz...

Inter-well interference, a superimposed effect of pressure propagation from adjacent wells, can enhance the dynamics methane desorption in pores and gas transport fractures through energy migration. To better understand variation pattern seepage efficiency, inter-well interference mechanism different types reservoirs productivity changes after infilling coalbed wells were investigated. The resu...

Traditional methods of coal seam gas drainage rely on the use of reservoir pressure reduction to promote gas desorption from the coal matrix. Studies in coal mining gas drainage operations, particularly in coal seams that are deeply undersaturated and have low permeability, found the rate of reservoir pressure reduction was prohibitively slow. In such conditions, lengthy production delays have ...

The influence of coalification on coal structure evolution in middle ranked coals is significant for physical assessment coalbed methane (CBM) reservoirs, which provides insights the intrinsic connection between jump and pore heterogeneity. A total 26 middle-ranked were samples covering Liupanshui Coalfield Guizhou Province, Anhe Henan Huaibei Anhui Sanjiang Basin Heilongjiang Ordos Shaanxi Pro...