Production EngineeringWell Performance
ESP BEP Operating Ratio Formula
ESP BEP Operating Ratio calculates design rate as fraction of bep rate for well performance workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (Q_design, Q_BEP) 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, Q_design_ratio equals 0.9375 fraction.
Q_designBPD
3000
Q_BEPBPD
3200
Inputs
Q_design
BPDDesign Flow Rate
Q_BEP
BPDPump Best Efficiency Point Flow Rate
Outputs
Q_design_ratio
fraction
Design Rate as Fraction of BEP Rate
Q_min_BEP
BPD
Lower Recommended BEP Operating Rate
Q_max_BEP
BPD
Upper Recommended BEP Operating Rate
Q_design
BPD
Design Flow Rate
Q_BEP
BPD
Pump Best Efficiency Point Flow Rate
Source and review
reviewedPetroleum Office. ESP Pump Performance - Best Efficiency Point and recommended operating range.
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
Well Performance