Calculators
Pump Slippage
Evaluate pump efficiency and slippage rates
The Pump Slippage calculator evaluates fluid losses past the pump plunger, helping assess pump condition and efficiency.
Inputs
General
| Field | Description |
|---|---|
| Plunger Diameter (in) | Pump plunger size |
| Plunger Length (ft) | Length of plunger |
| Plunger-Barrel Clearance (in) | Gap between plunger and barrel |
| Pump Fill (%) | Percentage of pump filled |
| SPM | Strokes per minute |
| Run Time (hours) | Daily operating hours |
| Liquid Dynamic Viscosity (cp) | Fluid viscosity |
| Fluid Load (lbs) | Load on pump (manual or calculated) |
Fluid Load
| Field | Description |
|---|---|
| Calculate Fluid Load | Toggle to auto-calculate from well data |
Pumping Unit Type
| Field | Description |
|---|---|
| Pumping Unit Type | Brand or Custom |
| Manufacturer Line | Unit manufacturer |
| Model | Specific unit model |
Outputs
Slippage Table
Shows slippage (bbl/day) at each SPM from 1 to maximum, allowing you to see how slippage increases with pump speed.
Efficiency Chart
Visual graph showing:
- Pump Efficiency (%) vs. SPM
- Slippage (bbl/day) vs. SPM
The chart helps identify the optimal operating range where efficiency is acceptable.
Use Cases
- Diagnose worn pump conditions
- Evaluate clearance impact on efficiency
- Optimize SPM for minimum slippage
- Compare pump designs