Abstract: This study proposes reconstructing reservoir near the production well by high-pressure jet grouting（HPJG）,which forms a high-permeability foam slurry jet grouting column（JGC） around the wellbore,and combining with depressurization to improve production efficiency. Based on the gas hydrate reservoir at site NGHP-02-16 in the Krishna-Godavari Basin,India,a reservoir reconstruction model for gas production through depressurization is developed to investigate the feasibility of the coupled production method using TOUGH+ Hydrate code. The results show that:Near-well reservoir reconstruction method can effectively improve the hydrate production performance. Hydrate production efficiency increases with the increase of JGC radius and permeability,but not affected by the JGC porosity. Lowering the production pressure can further improve the favorable effect of near-well reservoir reconstruction combined with depressurization method.