\frac{\partial \rho \, \phi}{\partial t} + \nabla (\rho \, {bf u}) = 0



















normalized porosity

effective porosity as function of formation pressure  

cumulative gas influx from Gas Cap Expansion

 

initial effective porosity



cumulative water influx from Aquifer Expansion



normalized cross-phase exchange derivatives as functions of reservoir pressure  and temperature  


Initial water saturation

Oil and Gas Recovery Factor