Production EngineeringWell Performance
ESP Brake Horsepower Speed Correction Formula
ESP Brake Horsepower Speed Correction calculates speed-corrected brake horsepower for well performance workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (BHP_1, N_1, N_2) 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_2 equals 0.72338 hp.
BHP_1hp
1.25
N_1Hz
60
N_2Hz
50
Inputs
BHP_1
hpReference Brake Horsepower
N_1
HzReference Pump Speed or Frequency
N_2
HzNew Pump Speed or Frequency
Outputs
BHP_2
hp
Speed-Corrected Brake Horsepower
BHP_1
hp
Reference Brake Horsepower
N_1
Hz
Reference Pump Speed or Frequency
N_2
Hz
New Pump Speed or Frequency
Source and review
reviewedPetroleum Office ESP affinity laws and Engineering ToolBox pump affinity laws.
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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