Mechanical Properties of Coal Adsorbing Methane: A Study Based on Molecular Simulation

Reservoir reconstruction using hydraulic fracturing is an effective technology for enhanced recovery of coalbed methane. The mechanical properties of the coal seam are essential parameters for the fracturing effect, but its accurate prediction still faces great challenges due to the limitations of experimental conditions. Here, we explore the mechanical parameters of coal with different methane adsorption pressure through molecular simulation methods. The results indicate an increase in methane adsorption pressure results in a gradual decrease in the modulus parameter of the coal. Reservoir reconstruction using hydraulic fracturing is an effective technology for enhanced recovery of coalbed methane. The mechanical properties of the coal seam are essential parameters for the fracturing effect, but its accurate prediction still faces great challenges. Therefore, we explore the mechanical parameters of coal with different methane adsorption pressure through molecular simulation methods.