# What is Electric Submersible Pump (ESP)?

**URL:** <https://forumautomation.com/t/what-is-electric-submersible-pump-esp/12661>\
**Category:** Field Instrumentation\
**Tags:** pumps\
**Created:** [October 3, 2024, 4:42pm UTC](https://forumautomation.com/t/what-is-electric-submersible-pump-esp/12661 "2024-10-03T16:42:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Rabert](https://forumautomation.com/user_avatar/forumautomation.com/rabert/32/6784_2.png) [@Rabert](https://forumautomation.com/u/Rabert)\
**Post date:** [October 3, 2024, 4:42pm UTC](https://forumautomation.com/t/what-is-electric-submersible-pump-esp/12661/1 "2024-10-03T16:42:25Z")

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What is Electric Submersible Pump (ESP)?

- Electric Submersible Pump (ESP) systems convert electrical energy into torque.

- ESPs add pressure to produced fluids by using a centrifugal pump powered up by a downhole electric motor.

- Electricity comes from surface using a power cable.

 ![IMG_20241003_220959](https://cdn.forumautomation.com/original/2X/7/70ba4d8474f07c621b527ee0df050f68cfdbecee.jpeg)

Why ESPs for High Volume Wells?

1- Centrifugal pumps are capable of producing higher rates compared to positive displacement pump types in oil well casing applications.

2- More horsepower can be delivered to the pump in oil well casing compared to other artificial lift methods.

3- Other artificial lift methods should be considered for lower production rates, as these are usually more economical.

4- It is important to consider the pump setting depth, downhole temperatures, and how the system will operate for various flow rates and conditions.

5- Chemicals and well conditions (abrasives) must be considered.

Advantages:

1- Main advantage of the electrical submersible pump is the flexibility of the system.

2- Can be used at low bottom hole pressures.

3- Can operate reliably in deviated wells.

4- Can be used effectively for offshore and onshore applications.

5- Operate under extreme conditions such as higher bottom hole temperature applications.

6- Can be utilized in harsh conditions (corrosion and scale) with alternative materials.

Disadvantages:

1- Cable temperature limits must be identified and reviewed.

2- Electrical power for required horsepower must be available.

3- Higher gas content can limit system capabilities.

4- Presence of solids may cause rapid wear and premature failure.

Data Required to Properly Design an ESP :

Because of the factors involved- and varying production rates, it is necessary to review all reservoir data to determine the most accurate pump selection and unit for each application.

- Especially in the initial stages, the inflow information is vital to any pump sizing for considering an electrical submersible pumping system.

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