Pipeline Fluid Volume And Mass

Calculate pipeline fluid density for single phase fluid (oil or water), single phase gas, and two phase gas liquid.

Gas oil ratio (GOR) is the ratio of gas moles over oil volume. Gas moles are commonly measured as gas volume at standard conditions (eg SCF or SCM).

Tool Input

• 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
• ρl : Liquid Density
• P : Fluid Pressure
• T : Fluid Temperature
• Z : Gas Compressibility Factor
• SG : Gas Specific Gravity

Tool Output

• ρf : Average Fluid Density
• ρg : Gas Density (At T P)
• GOR : Gas Oil Ratio
• Xm : Gas Mass Fraction
• Xv : Gas Volume Fraction (At T P)
• vg : Gas Mole Volume (At T P)

Calculate pipeline 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

Calculate typical line pipe elastic modulus, shear modulus, bulk modulus, density, and thermal expansion coefficient.

The table values of Poisson ratio and bulk modulus are calculated from the elastic modulus and shear modulus. Project specific data should be used if it is available. Use the Result Table option to display a table of properties versus material type.

Tool Input

• modptype : Material Type
  • Eu : User Defined Elastic Modulus
  • Gu : User Defined Shear Modulus
  • Ku : User Defined Bulk Modulus
  • νu : User Defined Poisson Ratio
  • ρu : User Defined Density
  • αu : User Defined Thermal Expansion Coefficient

Tool Output

• α : Thermal Expansion Coefficient
• ν : Poisson Ratio
• ρ : Density
• E : Elastic Modulus
• G : Shear Modulus
• K : Bulk Modulus

Calculate pipeline fluid volume and mass from pipe length and inside diameter for three phase gas / oil / water (black oil).

Select either single phase oil, single phase water, single phase gas, two phase oil / water from water cut (WC), three phase black oil (oil / water / gas) from gas oil ratio (GOR) and water cut (WC), or user defined fluid density.

Tool Input

• schdtype : Line Pipe Schedule Type
• diamtype : Line 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
  • WCu : User Defined Water Cut
  • ρu : User Defined Fluid Density
  • ρo : User Defined Oil Density
  • ρw : User Defined Water Density
  • P : User Defined Fluid Pressure
  • T : User Defined Fluid Temperature
  • Z : User Defined Gas Compressibility Factor
  • SG : User Defined Gas Specific Gravity
• L : Pipe Section Length

Tool Output

• ρf : Average Fluid Density
• ρg : Gas Density
• ρl : Liquid Density
• GOR : Gas Oil Ratio
• ID : Nominal Inside Diameter
• Mf : Total Fluid Mass
• Mg : Gas Mass
• Ml : Liquid Mass
• Mo : Oil Mass
• Mw : Water Mass
• Ng : Gas Moles
• OD : Nominal Outside Diameter
• Vf : Total Fluid Volume
• Vg : Gas Volume
• Vl : Liquid Volume
• Vo : Oil Volume
• Vw : Water Volume
• WC : Water Cut
• Xmg : Gas Mass Fraction
• Xml : Liquid Mass Fraction
• Xmo : Oil Mass Fraction
• Xmw : Water Mass Fraction
• Xvg : Gas Volume Fraction
• Xvl : Liquid Volume Fraction
• Xvo : Oil Volume Fraction
• Xvw : Water Volume Fraction
• tn : Pipe Nominal Wall Thickness
• vg : Gas Mole Volume (At T P)

Calculate pipeline fluid volume and mass from pipe length and inside diameter for single phase liquid.

For liquids heavier than water the density can be defined by degrees Baume (Be+), degrees Twaddell, or user defined liquid density. For liquids lighter or equal to water the density can be defined by either degrees Baume (Be-), degrees API, or user defined density.

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
• sgtype : Density Type
  • SGu : User Defined Specific Gravity
  • Be+u : User Defined Degrees Baume SG > 1
  • Be-u : User Defined Degrees Baume SG <= 1
  • Twu : User Defined Degrees Twaddell SG > 1
  • APIu : User Defined Degrees API SG <= 1
  • ρu : User Defined Liquid Density
• L : Pipe Length

Tool Output

• ρ : Fluid Density
• API : Degrees API SG ≤ 1
• Be+ : Degrees Baume SG > 1
• Be- : Degrees Baume SG ≤ 1
• ID : Inside Diameter
• Mf : Liquid Mass
• OD : Outside Diameter
• SG : Specific Gravity
• Tw : Degrees Twaddell SG > 1
• Vf : Liquid Volume
• tn : Nominal Wall Thickness

Calculate pipeline mass per length and weight per length (dry empty, dry full, wet empty and wet full) from diameter, wall thickness and density.

Tool Input

• schdtype : Schedule Type
• diamtype : Diameter Type
  • ODu : User Defined Outside Diameter
  • IDu : User Defined Inside Diameter
• wtntype : Wall Thickness Type
  • tnu : User Defined Wall Thickness
• modptype : Material Property Type
  • ρpu : User Defined Pipe Density
• L : Pipe Length

Tool Output

• ρp : Pipe Density
• ID : Nominal Inside Diameter
• M : Pipe Total Mass
• OD : Nominal Outside Diameter
• OD/tn : Diameter Over Wall Thickness Ratio
• m : Pipe Mass Per Length
• tn : Nominal Wall Thickness