Calculate API RP 14E maximum allowable erosional velocity for platform piping systems.
The fluid density can be calculated for single phase gas, single phase liquid, two phase gas liquid, or three phase black oil (gas oil and water). The erosional velocity is calculated from the fluid density and the C Factor. Equation 2.14 in API RP 14E uses FPS units. The API RP 14E calculators have been factored to use SI units.
For fluids with no entrained solids a maximum C value of 100 for continuous service, or 125 for intermittent service can be used. For fluids treated with corrosion inhibitor, or for corrosion resistant materials a maximum C value of 150 to 200 may be used for continuous service, and upto 250 for intermittent service. For fluids with solids, the C value should be significantly reduced.
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). Water cut is the volume ratio of water in liquid (oil and water).
Reference : API 14E Recommended Practice For Design and Installation of Offshore Production Platform Piping Systems
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CALCULATOR : API RP 14E Section 2.5 Maximum Erosional Velocity And Flow Rate (Three Phase Gas Oil Water) [PLUS] ±
Calculate the maximum recommended piping erosional velocity and flow rate for three phase black oil (API RP 14E section 2.5). For solids free fluids a maximum C value of 100 for continuous service, or 125 for intermittent service is recommended. For fluids treated with corrosion inhibitor, or for corrosion resistant materials a maximum C value of 150 to 200 may be used for continuous service, and upto 250 for intermittent service. For fluids with solids, the C value should be significantly reduced. 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). Water cut is the volume ratio of water in liquid (oil and water). 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
- WCu : User Defined Water Cut
- ρu : User Defined Fluid Density
- cfactype : Erosional Velocity Factor Type
- Cu : User Defined Erosional Velocity Factor
- ρo : Oil Density
- ρw : Water Density
- P : Fluid Pressure
- T : Fluid Temperature
- Z : Gas Compressibility Factor
- SG : Gas Specific Gravity
Tool Output- ρf : Average Fluid Density
- ρg : Gas Density
- ρl : Liquid Density
- C : Erosional Velocity Factor
- GOR : Gas Oil Ratio
- ID : Inside Diameter
- Mf : Erosional Total Mass Flowrate
- Mg : Gas Mass Flowrate
- Ml : Liquid Mass Flowrate
- Mo : Oil Mass Flowrate
- Mw : Water Mass Flowrate
- Ng : Gas Mole Flowrate
- Qf : Erosional Total Volume Flowrate
- Qg : Gas Volume Flowrate
- Ql : Liquid Volume Flowrate
- Qo : Oil Volume Flowrate
- Qw : Water Volume Flowrate
- Vf : Erosional Total Fluid Velocity
- Vg : Gas Superficial Velocity
- Vl : Liquid Superficial Velocity
- Vo : Oil Superficial Velocity
- Vw : Water Superficial Velocity
- 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
- vg : Gas Mole Volume (At T P)
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CALCULATOR : API RP 14E Section 2.5 Maximum Erosional Velocity And Flow Rate (Two Phase Gas Liquid) [PLUS] ±
Calculate the maximum recommended piping erosional velocity and flow rate for two phase gas liquid. For solids free fluids a maximum C value of 100 for continuous service, or 125 for intermittent service is recommended. For fluids treated with corrosion inhibitor, or for corrosion resistant materials a maximum C value of 150 to 200 may be used for continuous service, and upto 250 for intermittent service. For fluids with solids, the C value should be significantly reduced. 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- 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
- cfactype : Erosional Velocity Factor Type
- Cu : User Defined Erosional Velocity Factor
- 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)
- C : Erosional Velocity Factor
- GOR : Gas Oil Ratio
- ID : Inside Diameter
- Mf : Total Fluid Mass Flowrate
- Mg : Gas Mass Flowrate
- Ml : Liquid Mass Flowrate
- Ng : Gas Mole Flowrate
- Qf : Total Fluid Volume Flowrate
- Qg : Gas Volume Flowrate (At T P )
- Ql : Liquid Volume Flowrate
- Vf : Average 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)
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CALCULATOR : API RP 14E Section 2.5 Fluid Density (Two Phase Gas Liquid) [FREE] ±
Calculate gas, liquid and two phase fluid density (API RP 14E section 2.5). Gas oil ratio (GOR) is the ratio of gas moles to oil volume at standard conditions. Gas moles are commonly measured as standard cubic feet (SCF), or standard cubic meters (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)
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CALCULATOR : API RP 14E Section 2.5 Fluid Density (Three Phase Gas Oil And Water) [FREE] ±
Calculate gas, oil, water and three phase black oil density. 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 the ratio of gas moles to oil volume at standard conditions (water volume is ignored). Gas moles are commonly measured as standard cubic feet (SCF), or standard cubic meters (SCM). Tool Input- mvtype : Fluid Density Type
- GORu : User Defined Gas Oil Ratio
- WCu : User Defined Water Cut
- ρu : User Defined Fluid Density
- ρo : Oil Density
- ρw : Water Density
- P : Fluid Pressure
- T : Fluid Temperature
- Z : Gas Compressibility Factor
- SG : Gas Specific Gravity
Tool Output- ρf : Average Fluid Density
- ρg : Gas Density
- ρl : Liquid Density
- GOR : Gas Oil Ratio
- 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
- vg : Gas Mole Volume (At T P)
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CALCULATOR : API RP 14E Section 2.5 Fluid Density (Single Phase Gas) [FREE] ±
Calculate single phase gas density, specific gravity and molar mass. Gas molar mass is approximately equal to the molar mass of dry air times the gas specific gravity at standard conditions (for most gases the compressibility factor Z is approximately equal to 1 at standard conditions). The molar mass of dry air is taken as 28.964 kg/kg-mole. For gas mixtures, gas specific gravity is easier to measure than the molar mass. Tool Input- fluidtype : Gas Type
- SGu : User Defined Gas Specific Gravity
- Z : Gas Compressibility Factor
- P : Gas Pressure
- T : Gas Temperature
Tool Output- ρ : Gas Density
- M : Gas Molar Mass
- R : Gas Constant
- SG : Gas Specific Gravity
- vg : Gas Molar Volume (At T P)
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CALCULATOR : API RP 14E Section 2.5 Fluid Density (Single Phase Liquid) [FREE] ±
Calculate single phase liquid density and specific gravity. 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. Tool Input- 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
Tool Output- ρ : Fluid Density
- API : Degrees API SG ≤ 1
- Be+ : Degrees Baume SG > 1
- Be- : Degrees Baume SG ≤ 1
- SG : Specific Gravity
- Tw : Degrees Twaddell SG > 1
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CALCULATOR : API RP 14E Section 2.5 Maximum Erosional Velocity And Flow Rate (Single Phase Gas) [FREE] ±
Calculate the maximum recommended piping erosional velocity and flow rate for single phase gas (API RP 14E section 2.5). For solids free fluids a maximum C value of 100 for continuous service, or 125 for intermittent service is recommended. For fluids treated with corrosion inhibitor, or for corrosion resistant materials a maximum C value of 150 to 200 may be used for continuous service, and upto 250 for intermittent service. For fluids with solids, the C value should be significantly reduced. 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 : Gas Specific Gravity Type
- SGu : User Defined Gas Specific Gravity
- Mu : User Defined Gas Molar Mass
- ρu : User Defined Gas Density
- cfactype : Erosional Velocity Factor Type
- Cu : User Defined Erosional Velocity Factor
- P : Gas Pressure
- T : Gas Temperature
- Z : Gas Compressibility Factor
Tool Output- ρ : Gas Density
- C : Erosional Velocity Factor
- ID : Inside Diameter
- M : Gas Molar Mass
- Mf : Gas Mass Flowrate
- Ng : Gas Mole Flowrate
- Qf : Gas Volume Flowrate (At T P)
- SG : Gas Specific Gravity
- Vf : Gas Velocity
- vg : Gas Mole Volume (At T P)
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CALCULATOR : API RP 14E Section 2.5 Maximum Erosional Velocity And Flow Rate (Single Phase Liquid) [FREE] ±
Calculate the maximum recommended piping erosional velocity and flow rate for single phase liquid. For solids free fluids a maximum C value of 100 for continuous service, or 125 for intermittent service is recommended. For fluids treated with corrosion inhibitor, or for corrosion resistant materials a maximum C value of 150 to 200 may be used for continuous service, and upto 250 for intermittent service. For fluids with solids, the C value should be significantly reduced. 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
- cfactype : Erosional Velocity Factor Type
- Cu : User Defined Erosional Velocity Factor
Tool Output- ρ : Fluid Density
- API : Degrees API SG ≤ 1
- Be+ : Degrees Baume SG > 1
- Be- : Degrees Baume SG ≤ 1
- C : Erosional Velocity Factor
- ID : Inside Diameter
- Mf : Liquid Mass Flowrate
- Qf : Liquid Volume Flowrate
- SG : Specific Gravity
- Tw : Degrees Twaddell SG > 1
- Vf : Fluid Velocity
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CALCULATOR : API RP 14E Section 2.5 Maximum Erosional Velocity And Flow Rate (General) [FREE] ±
Calculate the maximum recommended piping erosional velocity and flow rate from fluid density for general fluids. For solids free fluids a maximum C value of 100 for continuous service, or 125 for intermittent service is recommended. For fluids treated with corrosion inhibitor, or for corrosion resistant materials a maximum C value of 150 to 200 may be used for continuous service, and upto 250 for intermittent service. For fluids with solids, the C value should be significantly reduced. 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
- cfactype : Erosional Velocity Factor Type
- Cu : User Defined Erosional Velocity Factor
- ρ : Fluid Density
Tool Output- C : Erosional Velocity Factor
- ID : Inside Diameter
- Mf : Fluid Mass Flowrate
- Qf : Fluid Volume Flowrate
- Vf : Fluid Velocity
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CALCULATOR : API RP 14E Piping Diameter And Wall Thickness [FREE] ±
Calculate API RP 14E piping diameter and pressure design wall thickness from pipe schedule. The pressure design thickness equals the nominal wall thickness minus the corrosion allowance and fabrication allowance. The corrosion allowance includes mechanical allowances such as threads and damage etc. Use the Result Table option to display the results for the selected diameter. 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
- ttoltype : Wall Thickness Fabrication Tolerance Type
- txu : User Defined Negative Wall Thickness Fraction
- tfu : User Defined Negative Wall Thickness Allowance
- c : Wall Thickness Corrosion Allowance
Tool Output- ID : Nominal Inside Diameter
- OD : Nominal Outside Diameter
- OD/tn : Diameter Over Wall Thickness Ratio
- tf : Wall Thickness Fabrication Allowance
- tm : Minimum Wall Thickness
- tn : Nominal Wall Thickness
- tp : Pressure Design Wall Thickness
- tx : Wall Thickness Fabrication Fraction
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