Reference for selecting combinations that affect drawdown and efficiency.
Key Relationships
- Smaller nozzles generate higher jet velocity but require more pressure.
- Larger throats allow greater production volume but lower jet velocity.
- The optimal ratio balances production rate, power fluid requirements and efficiency.
General Reference Ranges
- High Drawdown / Low Efficiency:
Small nozzle with medium throat. - Balanced Production and Efficiency:
Moderate nozzle and throat pairing. - High Volume / Lower Pressure Differential:
Larger nozzle and larger throat.
Design Considerations
- Required intake pressure
- Expected solids loading
- Available power fluid pressure
- Reservoir productivity index
- Temperature and fluid compatibility