Production EngineeringWell Performance
ESP Wellhead Pressure Head Formula
ESP Wellhead Pressure Head calculates wellhead pressure head for well performance workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (P_whp, SG_f) are known and the assumptions behind the cited well performance relationship match the engineering case being checked.
Assumptions
- Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
- The declared units match the field-unit constants used in the formula.
- The cited formula applies to the selected petroleum engineering workflow.
Limitations
- The calculation does not replace a full engineering model or operating procedure.
- Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.
Common mistakes
- Mixing unit systems without converting the inputs.
- Using default example values as field recommendations.
- Applying the formula outside the source assumptions.
Default example
Using the default inputs, H_whp equals 364.652972 ft.
P_whppsi
150
SG_fdimensionless
0.95
Inputs
P_whp
psiWellhead Pressure
SG_f
dimensionlessProduced Fluid Mixture Specific Gravity
Outputs
H_whp
ft
Wellhead Pressure Head
P_whp
psi
Wellhead Pressure
SG_f
dimensionless
Produced Fluid Mixture Specific Gravity
Source and review
reviewedPetroleum Office. ESP Pump Performance - Head, Staging, Efficiency, and Horsepower.
SourceRelated formulas and calculators
Effective Wellbore Radius of a Well in Presence of Uniform Flux Fractures
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Effective Wellbore Radius of a Horizontal Well – Method 1 (Anisotropic Reservoirs)
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Effective Wellbore Radius of a Horizontal Well – van der Vlis et al. Method
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