DNVGL RP O501 Fluid Density And Viscosity

Calculate two phase pipeline fluid density and viscosity from flow rate (DNVGL-RP-O501 section 4.4). Gas oil ratio (GOR) is the ratio of gas moles over oil volume (water volume is ignored). Gas moles are commonly measured as gas volume at standard conditions (change units on the setup page).

Tool Input

• schdtype : Pipe Schedule Type
• diamtype : Pipe Diameter Type
  • ODu : User Defined Outside Diameter
  • IDu : User Defined Inside Diameter
• wtntype : Wall Thickness Type
  • tnu : User Defined Wall Thickness
• mvtype : Fluid Density Type
  • GORu : User Defined Gas Oil Ratio
  • Xmu : User Defined Gas Mass Fraction
  • Xvu : User Defined Gas Volume Fraction
  • ρu : User Defined Fluid Density
• voltype : Fluid Flow Rate Type
  • Qlu : User Defined Liquid Volume Flow Rate
  • Ngu : User Defined Gas Mole Flow Rate
  • Qfu : User Defined Total Fluid Volume Flow Rate
  • Mfu : User Defined Total Fluid Mass Flow Rate
  • Vfu : User Defined Fluid Velocity
  • Reu : User Defined Reynolds Number
• visctype : Viscosity Type
  • μu : User Defined Dynamic Viscosity
  • νu : User Defined Kinematic Viscosity
• μl : Liquid Dynamic Viscosity
• μg : Gas Dynamic Viscosity
• ρl : Liquid Density
• P : Fluid Pressure
• T : Fluid Temperature
• Z : Gas Compressibility Factor
• SG : Gas Specific Gravity

Tool Output

• μf : Fluid Dynamic Viscosity
• νf : Fluid Kinematic Viscosity
• ρf : Average Fluid Density
• ρg : Gas Density (At T P)
• GOR : Gas Oil Ratio
• ID : Inside Diameter
• Mf : Total Mass Flowrate
• Mg : Gas Mass Flowrate
• Ml : Liquid Mass Flowrate
• Ng : Gas Mole Flowrate
• Qf : Total Volume Flowrate
• Qg : Gas Volume Flowrate
• Ql : Liquid Volume Flowrate
• Re : Reynolds Number
• Vf : Total Fluid Velocity
• Vg : Superficial Gas Velocity
• Vl : Superficial Liquid Velocity
• Xm : Gas Mass Fraction
• Xv : Gas Volume Fraction (At T P)
• vg : Gas Mole Volume (At T P)

Calculate DNVGL-RP-O501 gas compressibility factor and density from gas temperature and pressure for selected gases.

The gas compressibility factor is calculated from the critical point temperature, critical point temperature, and the accentric factor using either the Peng Robinson, Soave, Redlich Kwong or Van Der Waals equations of state (EOS). The compressibility factor calculation is valid for gas phase only. Use the Result Plot option to plot compressibility factor versus pressure and temperature, compressibility factor versus pressure and equation of state type, or compressibility factor versus temperature and equation of state type.

Tool Input

• fluidtype : Fluid Type
  • SGu : User Defined Gas Specific Gravity
  • ωu : User Defined Acentric Factor
  • Pcu : User Defined Critical Pressure
  • Tcu : User Defined Critical Temperature
• eostype : Equation Of State
  • Zu : User Defined Compressibility Factor
• P : Fluid Pressure
• T : Fluid Temperature

Tool Output

• ρ : Fluid Density
• ω : Accentric Factor
• Pc : Critical Point Pressure
• Pr : Reduced Pressure
• SG : Gas Specific Gravity Relative To Air
• Tc : Critical Point Temperature
• Tr : Reduced Temperature
• Vm : Molar Volume
• Z : Compressibility Factor
• cvg : Convergence Check
• mw : Fluid Molar Mass