Numerical simulation-based correction of relative permeability hysteresis in water-invaded underground gas storage during multi-cycle injection and production

ZHU Sinan,SUN Junchang,WEI Guoqi,ZHENG Dewen,WANG Jieming,SHI Lei,LIU Xianshan

Fig. 3. Variation curves of residual water saturation during multi-cycle gas displacement and residual gas saturation during multi-cycle water displacement.