A submersible pump is a type of artificial lift system (ALS), which is completely submerged in the fluid to be pumped. It is also referred to as ESP. The basic operation of ESPs is based on the principle that they push, rather than pull, the fluid being dealt with. They are usually featured as single stage or multistage.
Detailed report at: http://www.reportsandintelligence.com/global-esp-2014-2018-reports-market
