PROTECT YOUR ESP MOTOR FROM RESERVOIR FLUIDS
 

MODULAR ESP PROTECTORS

Modular ESP protectors keep reservoir fluid from entering the oil-filled submersible motor, equalize pressure between the motor and the wellbore, carry the thrust load of the pump, regulate motor oil volume during ESP operation, and transmit torque from the electric motor to the pump

BENEFITS

Extend ESP runlife

Modular protectors provide a controlled environment and protect the system from reservoir fluids
Increase pump thrust capacity

High-load thrust bearings enable aggressive pump selection
Reduce system heat

The shaft can rotate both directions, promoting efficient heat transfer from the system to the reservoir



applications

  • Conventional and unconventional wells using an ESP
  • Vertical, directional, and horizontal wellbores

capabilities

  • Available in 272 (69 mm), 319 (81 mm), 338 (86 mm), 362 (92 mm), 406 (103 mm), 449 (114), 535 (136 mm), and 677 (172 mm) series
  • Designed to perform with motors that generate up to 650 kw @ 50Hz (1,050 HP @ 60Hz)
  • Can handle thrust bearing loads up to 17,640 lb @ 50Hz (9600 kg @ 60Hz)

features

  • Modular design enables you to protect ESPs across a wide range of conditions and easily replace or upgrade equipment if needed
  • Rugged diaphragm materials increase service life and reliability
  • The shaft rotates in both directions, promoting efficient heat transfer from the system to the reservoir
Photo of modular ESP protector, also called an ESP seal

TECHNICAL CHARACTERISTICS

Cutaway illustration of modular ESP protector sizes and configurations

Outer Diameter

Shaft Diameter

Thrust bearing load limit

Maximum Motor Power

Oil volume

Max Oil volume of motor

Length

Weight

2.72 in.

0.50 in.

1191 lb (@60Hz)

145 hp (@60Hz)

2.5 liters

9 liters

6.40 ft

69 lb

69 mm

14 mm

450 kg (@50Hz)

90 KW (@50Hz)

1.95 m

32 kg

3.19 in.

0.79 in.

4500 lb (@60Hz)

145 hp (@60Hz)

3.5 liters

9 liters

7.56 ft

115 lb

81 mm

20 mm

1700 kg (@50Hz)

90 KW (@50Hz)

2.31 m

52 kg

3.19 in.

0.79 in.

4500 lb (@60Hz)

289 hp (@60Hz)

3.5 liters

18 liters

TBA

115 lb

81 mm

20 mm

1700 kg (@50Hz)

180 KW (@50Hz)

TBA

52 kg

3.38 in.

0.98 in.

1588 lb (@60Hz)

101 hp (@60Hz)

4 liters

7.5 liters

5.06 ft

154 lb

86 mm

25 mm

600 kg (@50Hz)

63 KW (@50Hz)

1.54 m

70 kg

3.38 in.

0.98 in.

1588 lb (@60Hz)

161 hp (@60Hz)

5.5 liters

15 liters

6.68 ft

154 lb

86 mm

25 mm

600 kg (@50Hz)

100 KW (@50Hz)

2.04 m

70 kg

3.62 in.

0.98 in.

5292 lb (@60Hz)

130 hp (@60Hz)

5 liters

11.5 liters

5.66 ft

132 lb

92 mm

25 mm

2000 kg (@50Hz)

80 KW (@50Hz)

1.73 m

60 kg

3.62 in.

0.98 in.

5292 lb (@60Hz)

320 hp (@60Hz)

7 liters

23 liters

7.56 ft

154 lb

92 mm

25 mm

2000 kg (@50Hz)

200 KW (@50Hz)

2.31 m

70 kg

4.06 in.

0.98 in.

7144 lb (@60Hz)

201 hp (@60Hz)

7 liters

15.5 liters

5.66 ft

154 lb

103 mm

25 mm

2700 kg (@50Hz)

125 KW (@50Hz)

1.73 m

70 kg

4.06 in.

0.98 in.

7144 lb (@60Hz)

579 hp (@60Hz)

9 liters

31 liters

7.56 ft

198 lb

103 mm

25 mm

2700 kg (@50Hz)

360 KW (@50Hz)

2.31 m

90 kg

4.49 in.

1.38 in.

8203 lb (@60Hz)

290 hp (@60Hz)

11 liters

20 liters

6.37 ft

287 lb

114 mm

35mm

3100 kg (@50Hz)

180 KW (@50Hz)

1.94 m

130 kg

4.49 in.

1.38 in.

8203 lb (@60Hz)

720 hp (@60Hz)

11 liters

40 liters

8.04 ft

287 lb

114 mm

35mm

3100 kg (@50Hz)

450 KW (@50Hz)

2.45 m

130 kg

5.35 in.

1.50 in.

11907 lb (@60Hz)

418 hp (@60Hz)

17 liters

40 liters

9.17 ft

397 lb

136 mm

38 mm

4500 kg (@50Hz)

260 KW (@50Hz)

2.80 m

180 kg

5.35 in.

1.50 in.

11907 lb (@60Hz)

1126 hp (@60Hz)

17 liters

80 liters

9.17 ft

397 lb

136 mm

38 mm

4500 kg (@50Hz)

700 KW (@50Hz)

2.80 m

180 kg

6.77 in.

1.69 in.

21168 lb (@60Hz)

320 hp (@60Hz)

14 liters

38 liters

TBA

463 lb

172 mm

43 mm

8000 kg (@50Hz)

200 KW (@50Hz)

TBA

210 kg

6.77 in.

1.69 in.

21168 lb (@60Hz)

1050 hp (@60Hz)

25 liters

76 liters

7.56 ft

573 lb

172 mm

43 mm

8000 kg (@50Hz)

650 KW (@50Hz)

2.31 m

260 kg

More about our modular ESP protectors

The modular ESP protector is installed between the motor and the intake in an electrical submersible pumping (ESP) system. The size and type of protector is determined based on submersible motor power, size, and design along with downhole conditions like angle of deviation, reservoir temperature, and the presence of solids. Typically, the more powerful the motor and the more aggressive the downhole conditions, the more protection you need to ensure ESP runlife.

The protector is a vital link in the ESP assembly and can extend overall system runlife when properly selected. We offer highly efficient protectors that perform across a wide range of operating conditions, giving you the flexibility to choose a protector that doesn’t compromise additional seals and eliminates unnecessary duplicate parts.

The protector consists of a head, base, shaft, seal chamber (either labyrinth or bag type), and seal body. With the repositioning of a few valves and plugs, the protector assembly can easily be configured into dozens of final designs. Labyrinth module protectors are typically used in wells with deviations less than 60° while bag-type configurations can be used in highly deviated and horizontal wells.

Bag and labyrinth chambers can be connected in series or in parallel:

  • Series connections are used to provide a back-up chamber in case the first chamber fails.
  • Parallel connections (for bags only) increase oil volume compensation capacity to combat higher loads and temperatures.

Need more info?

Contact us for more information about using modular ESP protectors to seal the ESP motor