Production EngineeringWell Performance
Progressive Cavity Pump Flow Rate Formula
Progressive Cavity Pump Flow Rate calculates pump flow rate for well performance workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (D, E, N, Q_s, P_s) 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_e equals 1,852.5 bbl/day.
Din
2.5
Ein
0.25
Nrpm
300
Q_sbbl/day
150
P_sft
1.5
Inputs
D
inRotor Diameter
E
inRotor-Stator Eccentricity
N
rpmRotary Speed
Q_s
bbl/dayLeak Rate
P_s
ftPitch Length of Stator
Outputs
Q_e
bbl/day
Pump Flow Rate
Q_s
bbl/day
Leak Rate
N
rpm
Rotary Speed
P_s
ft
Pitch Length of Stator
Source and review
reviewedGuo, B., Lyons, W.C. and Ghalambor, A. 2007. Petroleum Production Engineering: A Computer-Assisted Approach, Page 14.
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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