Three Phase Electric Submersible Pump typically called an ESP, is an efficient and reliable artificial-lift method for lifting moderate to high volumes of fluids from wellbores. These volumes range from a low of 150 B/D to as much as 150,000 B/D (24 to 24,600 m3/d). Variable-speed controllers can extend this range significantly, both on the high and low side. The ESP’s main components include:

• Multistaged centrifugal pump
• Three-phase induction motor
• Seal-chamber section
• Power cable
• Surface controls

Although there can be many factors that influence or directly affect the run-life of an ESP system, proper installation and handling procedures are critical. The recommended installation and handling procedures are detailed in API RP11S3. [3] In addition to these, manufacturers should be contacted for specific recommendations on their equipment.