<Li> a reciprocating piston pump, where one side is powered by the (injected) drive fluid while the other side pumps the produced fluids to surface </Li> <Li> a jet pump, where the (injected) drive fluid passes through a nozzle - throat venturi combination, mixes with produced fluids and by the venturi effect creates a high pressure at the discharge side of the pump . </Li> <Li> a hydraulically driven downhole turbine (HSP), whereby the downhole drive motor is a turbine, mechanically connected to the impeller - pump section which pumps the fluid . </Li> <P> These systems are very versatile and have been used in shallow depths (1,000 ft) to deeper wells (18,000 ft), low rate wells with production in the tens of barrels per day to wells producing in excess of 20,000 bbl (3,200 m) per day . In most cases the drive (injected) fluid can be water or produced fluids (oil / water mix). Certain chemicals can be mixed in with the injected fluid to help control corrosion, paraffin and emulsion problems . Hydraulic pumping systems are also suitable for deviated wells where conventional pumps such as the rod pump are not feasible . </P>

Types of artificial lift in oil and gas