Keywords Western Sichuan Depression;shallow gas reservoir;sealing ration of fault;permeability of fault;seismic facies;sedimentary facies;prodelta facies sand;channel facies;sand;

• 川西凹陷;浅层气藏;断层封堵性;断层渗透性;地震相;沉积相;三角洲前缘相;河道相;砂体;