Electric Submersible Pump System - EPSs
The electrical submersible pump, typically called an ESP, is an efficient and reliable artificial-lift method for lifting moderate to high volumes of fluids from wellbores. Variable-speed controllers can extend 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
- Adaptable to highly deviated wells; up to horizontal, but must be set in straight section.
- Adaptable to required subsurface wellheads 6 ft apart for maximum surface-location density.
- Permit use of minimum space for subsurface controls and associated production facilities.
- Quiet, safe, and sanitary for acceptable operations in an offshore and environmentally conscious area.
- Generally considered a high-volume pump.
- Provides for increased volumes and water cuts brought on by pressure maintenance and secondary recovery operations.
- Permits placing wells on production even while drilling and working over wells in immediate vicinity.
- Applicable in a range of harsh environments.