Gray LAMBDAs
3 lambdas
PO.VFP.Gray.dPdL.SI
Calculates pressure gradient for multiphase pipe flow using Gray (1974) correlation, [kPa/m]. Commonly used for gas wells that are also producing liquid (SI units).
PO.VFP.Gray.Pout.SI
Calculates outlet pipe pressure using Gray (1974), [kPa]. For gas wells producing liquid. Gas properties (ρg, μg, Bg) use DAK (Z-factor) and LGE (viscosity) (SI units).
PO.VFP.Gray.Pin.SI
Calculates inlet pipe pressure using Gray (1974), [kPa]. For gas wells producing liquid. Gas properties (ρg, μg, Bg) use DAK (Z-factor) and LGE (viscosity) (SI units).