Feature about well initialization

[liushilongpku]

Hello everyone! I have a caes which is considering inject and produce gas in aquifer . Here are some quesstions that I meet:
1.Do we have the feature to initialize the well whenever we want? The pressure which is caculated with the formation pressure at time 0
will not be easy to coverge at the time we want to open it.
2.Could well specific the well initial phase? The production well will always produce water which is contented by the well when i try to produce gas that i have injected previously.
Do we have method to do these things? Or could we add these feature? Thank you!