Multiphase flow pressure drop trough downhole choke calculation

[Damir]

HI everyone

I need some help regarding Multiphase flow pressure drop trough downhole choke calculation.

Gas condensate reservoir is perforated and downhole choke is instaled. Bottom Hole Flowing Pressure and reservoir pressure are both under Dew point pressure so there is a multiphase flow trough reservoir. We have measured BHFP after the Choke, but if we are to be correct pressure drop trough downhole choke must be added to the measured BHFP. Lower BHFP means lesser permeability value.

I have tried to find some equations to calculate pressure drop but it appears that there are none, the closest I have found is pressure drop trough sub-surface safety valve (SSSV) but those equations, gave a bad, unrealistic result.

If anyone can help please do so.. Any idea/literature/paper...anything is more than welcome.

Thx

[Oil+]

You can use prosper or pipesim to estimate the pressure drop on any element you define on the tubing.

[Damir]

Smart one... Anyone else, something useful please, Im sure that there are some experienced production engineers here