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Liquid Pipeline Volume Modules

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CALCULATOR MODULE : Line Pipe Fluid Mass And Volume   ±
CALCULATOR MODULE : ASME B31.3 Process Piping Fluid Volume And Mass   ±

Calculate ASME B31.3 process piping 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 B31.3 : Process Piping (2018)

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CALCULATOR MODULE : ASME B31.4 Liquid Pipeline Fluid Volume And Mass   ±

Calculate ASME B31.4 liquid pipeline fluid density, fluid volume and fluid mass for two phase gas liquid pipelines, and three phase black oil pipelines (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 B31.4 : Pipeline Transportation Systems For Liquids And Slurries (2012)

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CALCULATOR MODULE : Liquid Pipeline Pressure Loss From The Darcy Weisbach Equation   ±

Calculate single phase liquid pipeline pressure loss using the Darcy Weisbach equation.

`Po = P - (fd L / (ID) + K) 1/2 ρ V^2 + ρ g (zi - zo) `

where :

Po = outlet pressure
P = inlet pressure
fd = Darcy friction factor
L = piping length
ID = piping inside diameter
K = total friction loss factor for fittings
ρ = fluid density
V = fluid velocity
g = gravity constant
zi = inlet elevation
zo = outlet elevation

The Darcy friction factor can be calculated for

  • Hagen-Poiseuille laminar flow equation
  • original Colebrook White equation
  • modified Colebrook White equation
  • Prandtl Nikuradse smooth pipe equation
  • Blasius smooth pipe equation
  • Colebrook smooth pipe equation
  • Miller smooth pipe equation
  • Konakov smooth pipe equation
  • Von Karman rough pipe equation

For low Reynolds numbers Re < 2000, the fluid flow is laminar and the Darcy friction factor should be calculated using the Hagen-Poiseuille laminar flow equation. For high Reynolds numbers Re > 4000, the fluid flow is turbulent and the Darcy friction factor should be calculated using one of the turbulent flow equations. In the transition region 2000 < Re < 4000, the flow is unstable and the friction loss cannot be reliably calculated. The minor loss K factor is used to account for pipeline fittings such as bends, tees, valves etc..

The calculators use the Darcy-Weisbach pressure loss equation. The Fanning friction factor is used with the Fanning pressure loss equation. The transmission factors are commonly used for gas flow. The results for the Darcy and Fanning equations are identical provided that the correct friction factor is used.

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CALCULATOR MODULE : Liquid Pipeline Fluid Mass And Volume   ±

Calculate single phase liquid pipeline fluid mass and volume from fluid density and pipe length.

Pipe volume can be specified by volume, mass, or pipe length. Fluid density can be defined by density, specific gravity, degrees Baume, degrees Twaddell, or degrees API. For liquids lighter than or equal to water the density can be defined as degrees API, or degrees Baume (Be-). For liquids heavier than water the density can be defined by degrees Baume (Be+), or degrees Twaddell.

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CALCULATOR MODULE : Two Phase Gas Liquid Viscosity   ±

Calculate dynamic and kinematic viscosity for two phase gas liquids (gas and oil or gas and liquid).

Kinematic viscosity is equal to the dynamic viscosity divided by the density of the fluid. The viscosity of two phase fluids and mixtures can be calculated from the dynamic viscosity and the volume fraction. The gas oil ratio is the ratio of gas moles to oil volume. It is often measured as gas standard volume (scf or scm) per oil volume (barrels, gallons, cubic feet or cubic meters).

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CALCULATOR MODULE : Fluid Density And Volume   ±

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

The gas oil ratio is the ratio of gas moles to oil volume. Gas oil ratio is often measured as gas standard volume (scf or scm) per oil volume (barrels, gallons, cubic feet or cubic meters). The gas mass fraction is the ratio of gas mass to total fluid mass. The gas volume fraction is the ratio of gas volume to total fluid volume. Water cut is the ratio of water volume over total liquid volume (equals the water volume fraction in the liquid). Gas volume is dependent on fluid temperature and pressure.

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CALCULATOR MODULE : Two Phase Liquid Water Cut Ratio   ±
CALCULATOR MODULE : Two Phase Gas Liquid Density   ±

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

The gas oil ratio is the ratio of gas moles to oil volume. The gas mass fraction is the ratio of gas mass to total fluid mass. The gas volume fraction is the ratio of gas volume to total fluid volume. Gas volume is dependent on fluid temperature and pressure. Gas oil ratio is often measured as gas standard volume (scf or scm) per oil volume (barrels, gallons, cubic feet or cubic meters).

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CALCULATOR MODULE : Single Phase Liquid Specific Gravity   ±

Calculate liquid specific gravity for single phase liquid.

Liquid specific gravity is calculated relative to the density of water (1000 kg/m^3). Liquid density can also be defined as degrees API (liquids lighter than water), degrees Baume (liquids lighter than water or liquids heavier than water), or degrees Twaddell (liquids heavier than water).

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CALCULATOR MODULE : Fluid Dosing Rate And Density   ±
CALCULATOR MODULE : Two Phase Gas Liquid Heat Capacity   ±

Calculate two phase gas liquid heat capacity.

Fluid heat capacity can be calculated for single phase phase liqui. single phase gas, or combined liquid and gas. Gas oil ratio (GOR) is the ratio of gas moles over liquid volume. Gas moles are commonly measured by standard cubic feet (scf), and stand cubic meters (scm). Gas oil ratio is often measured as gas standard volume (scf or scm) per oil volume (barrels, gallons, cubic feet or cubic meters).

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CALCULATOR MODULE : Three Phase Gas Oil Water (Black Oil) Heat Capacity   ±

Calculate three phase gas oil water (black oil) heat capacity.

Black oil is a three phase mixture of oil, water and gas. Water cut is measured relative to the total liquid volume (gas volume is ignored). Gas oil ratio (GOR) is measured relative to the oil volume at standard conditions (water volume is ignored). Gas oil ratio (GOR) is the ratio of gas moles over liquid volume. Gas moles are commonly measured by standard cubic feet (scf), and stand cubic meters (scm). Gas oil ratio is often measured as gas standard volume (scf or scm) per oil volume (barrels, gallons, cubic feet or cubic meters).

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CALCULATOR MODULE : Spherical Tank Or Pressure Vessel Volume   ±

Calculate the fluid volume and mass for a full or part full spherical tanks and pressure vessels.

Fluid volume and mass can be calculated for liquid tanks (the gas volume is ignored), gas tanks (full tank only), and mixed gas and liquid tanks. For part full tanks the fluid level is measured from the inside base of the tank.

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CALCULATOR MODULE : Cylindrical Tank Or Pressure Vessel Volume   ±

Calculate the fluid volume and mass for a full or part full cylindrical tanks and pressure vessels.

Fluid volume and mass can be calculated for liquid tanks (the gas volume is ignored), gas tanks (full tank only), and mixed gas and liquid tanks. For part full tanks the fluid level is measured from the inside base of the tank. Cylindrical tanks can be either horizontla or certical. Tank ends can be either flat, or spherical. Pressure vessels normally have spherical ends.

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CALCULATOR MODULE : Rectangular Tank Or Pressure Vessel Volume   ±

Calculate the fluid volume and mass for a full or part full rectangular tanks and vessels.

Fluid volume and mass can be calculated for liquid tanks only (the gas volume is ignored). For part full tanks the fluid level is measured from the inside base of the tank. Rectangular tanks are assumed to be unpressurised.

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