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

Table 3 Design parameters.

Scheme Relative permeability hysteresis Stage of simulation Working time/a Cycle of injection and production Number of wells Constraint 1-1 No hysteresis Gas reservoir development 20 2 Constant production 1-2 Gas storage injection and production 10 10 6 Constant pressure and limited gas volume 1-3 Constant gas volume 2-1 Carlson Gas reservoir development 20 2 Constant production 2-2 Gas storage injection and production 10 10 6 Constant pressure and limited gas volume 2-3 Constant gas volume 3-1 Killough Gas reservoir development 20 2 Constant production 3-2 Gas storage injection and production 10 10 6 Constant pressure and limited gas volume 3-3 Constant gas volume