Production EngineeringWell Performance
ESP Total Brake Horsepower from Stage Curve Formula
ESP Total Brake Horsepower from Stage Curve calculates total pump brake horsepower for well performance workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (N_stages, BHP_stage) 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, BHP_total equals 288.75 hp.
N_stagesstages
231
BHP_stagehp/stage
1.25
Inputs
N_stages
stagesNumber of Pump Stages
BHP_stage
hp/stageBrake Horsepower per Stage at Operating Rate
Outputs
BHP_total
hp
Total Pump Brake Horsepower
N_stages
stages
Number of Pump Stages
BHP_stage
hp/stage
Brake Horsepower per Stage at Operating Rate
Source and review
reviewedPetroleum Office. ESP Pump Performance - Head, Staging, Efficiency, and Horsepower.
SourceRelated formulas and calculators
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Effective Wellbore Radius of a Horizontal Well – van der Vlis et al. Method
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