The ESP Protector is a vital component in an Electrical Submersible Pump (ESP) system, designed to protect the submersible motor from well fluid intrusion, pressure fluctuations, and external contaminants. The protector ensures the longevity and reliability of the motor by balancing internal and external pressures while preventing the ingress of well fluids.
ESP protectors are available in three structural designs:
- Labyrinth Chamber – Uses a multi-stage pressure equalization system to protect the motor.
- Rubber Bag Chamber – Features an expandable bladder to compensate for volume changes due to pressure and temperature variations.
- Combined Chamber – Integrates both labyrinth and rubber bag designs for enhanced protection.
Additionally, based on application requirements, ESP protectors are categorized into:
- Standard Type – For conventional well conditions.
- High-Load Type – Designed for high-stress operations.
- Sand-Proof Type – Prevents sand intrusion, ideal for sandy reservoirs.
- Anti-Corrosion Type – Engineered for highly corrosive environments.
✅ Advanced Motor Protection – Prevents well fluid ingress, safeguarding the ESP motor.
✅ Multiple Chamber Designs – Available in labyrinth, rubber bag, and combined configurations.
✅ Enhanced Durability – Resistant to high loads, sand contamination, and corrosion.
✅ Pressure Equalization – Effectively compensates for pressure and temperature variations in the well.
✅ Customizable Configurations – Designed to meet varied well conditions and customer requirements.
ESP Protector Specifications
ESP Protector Specifications
| Model |
Series (O.D mm/in) |
Description |
Length (mm / in) |
| EPT86J | 86 (3.38) | Bag chamber | 1769 / 69 |
| EPT86J-GZ | 86 (3.38) | High bearing capacity bag chamber | 1769 / 69 |
| EPT98C | 98 (3.86) | Labyrinth chamber | 1600 / 63 |
| EPT98J | 98 (3.86) | Bag chamber | 1869 / 73 |
| EPT98J-GZ | 98 (3.86) | High bearing capacity bag chamber | 1906 / 75 |
| EPT130C | 130 (5.12) | Labyrinth chamber | 1639 / 64 |
| EPT130J | 130 (5.12) | Bag chamber | 1869 / 73 |
| EPT130J-GZ | 130 (5.12) | High bearing capacity bag chamber | 1913 / 75 |
| EPT172C | 172 (6.75) | Labyrinth chamber | 1820 / 71 |
| EPT172J | 172 (6.75) | Bag chamber | 1491 / 64 |
| EPT172J-GZ | 172 (6.75) | High bearing capacity bag chamber | 1513 / 66 |
Well Applications: ≤200°C
