ASME B31.8 Fluid Volume Calculators

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ASME B31.8 Gas Pipeline Fluid Volume And Mass

Calculate ASME B31.8 gas pipeline fluid density, fluid volume and fluid mass for two phase gas liquid piping, and three phase black oil piping (gas water and oil).

The two phase fluid calculator can be used for single phase gas, single phase liquid, or two phase gas and liquid. The three phase black oil calculator can be used for single phase oil, single phase water, two phase oil and water, and three phase oil, water and gas. Water cut is the volume fraction of water in the liquid phase (ignoring the gas phase). Gas oil ratio (GOR) is the ratio of gas moles to liquid volume (ignoring the water phase). Gas moles are commonly measured as gas volume at standard conditions, eg SCM (Standard Conditions Meter) or SCF (Standard Conditions Feet).

Reference : ANSI/ASME B31.8 : Gas Transmission And Distribution Piping Systems (2018)

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
Xmu : User Defined Gas Mass Fraction
Xvu : User Defined Gas Volume Fraction
ρu : User Defined Fluid Density
ρl : User Defined Liquid 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 (At T P)

GOR : Gas Oil Ratio

ID : Nominal Inside Diameter

Mf : Total Fluid Mass

Mg : Gas Mass

Ml : Liquid Mass

Ng : Gas Moles

OD : Nominal Outside Diameter

Vf : Total Fluid Volume

Vg : Gas Volume (At T P )

Vl : Liquid Volume

Xm : Gas Mass Fraction

Xv : Gas Volume Fraction (At T P)

tn : Pipe Nominal Wall Thickness

vg : Gas Molar Volume (At T P)

Calculate ASME B31.8 gas 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)

ASME B31.8 Gas Pipeline Fluid Volume And Mass

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