Numerical simulation of heat effect and strain effect on gas drainage
ZHANG Linfeng
YANG Yanguo
FAN Nan
LIU Kang
YAO Wenjun
Abstract：In order to explore the influence of thermal effect and strain on gas drainage,a fluid solid thermal coupling model consid-ering coal deformation,gas adsorption and thermal effect was established to simulate the influence of thermal effect and strain on gas drainage.The results show that the gas production rate is 11.48%higher and the gas production rate is 11.45%higher when the thermal effect is considered than when the thermal effect is not considered.The stronger the thermal effect,the greater the permeabil-ity,and the higher the gas production.This shows that the influence of thermal effect on gas drainage cannot be ignored;the influ-ence of different strains on gas extraction is different,adsorption strain>temperature strain>pressure strain.
Keywords：gas drainagefluid-solid-thermal couplingthermal effectstraingas productionpermeability
Publication Date：2024-05-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 75-82 )