Numerical Analysis of Permeability Rebound and Recovery during Coalbed Methane Extraction and Its Implications for Enhanced Coalbed Methane Extraction through Injection of Superheated Water.

31 conducted a series of laboratory studies analyzing the influence of adsorption-induced strain and effective stress on permeability. The results showed that adsorption expansion increased with increasing CH 4 pressure under constant axial and confining pressures, while the effective stress exhibited a decreasing trend.

also in 25,881 other papers

The effects of the initial coal temperature, initial gas pressure, initial permeability, and initial diffusion coefficient on the evolution of permeability are analyzed. Whether to consider the temperature on permeability evolution is compared, and further discussion is conducted on the indicative significance of permeability evolution for enhanced CBM extraction through the injection of superheated water.

also in 72 other papers