Dewatering Pump

The nomenclature of a dewatering pump is descriptive of its exact purpose, which is to remove water from anywhere it is not wanted.  For the oil and gas industry, these pumps are used to remove the liquid that is a by-product of the producing wells.

Gas well deliquification using a dewatering pump becomes necessary when the rate of gas drops below a velocity, or rate that makes it possible for excess fluids to gather in the flow passage.  This is a significant hindrance to the production of the gas, and creates the need for a dewatering pump.  Some of the techniques used to remedy this condition are velocity strings, surfactants and various types of pumps and gas lift.

In order to produce oil and gas from shale that has been fractured, or coal beds, it is required that the formation be de-liquefied. JJ Tech couples efforts of their jet pump subsurface with the T-80 series pumps to not only create the artificial lift needed in low pressure conditions, but to pump the produced water away, hence the name of the dewatering pump.

In order to eliminate the build-up of water from producing oil or gas wells, a process of dewatering must take place.  This is because water is a byproduct of a high velocity stream of gas flowing to the surface.  Liquids are dispersed throughout the gas in the form of a fine mist.  Over time, as the pressure of the well decreases, the water that has formed in the conduit begins to settle to the bottom of the well, thereby decreasing the pressure of the gas flow, if not stopping it all together.

In order to eliminate the water build up from the well, a hydraulic jet pump may be installed to draw the fluid to the surface, along with the power fluid that is used to create the artificial gravity.  The use of a jet pump down hole creates the pressure needed to produce large amounts of fluid to the surface.

One of the numerous advantages to using a jet pump to dewater a well, is that the design allows the removal of the pump in an easy fashion, bypassing any need for a work over rig or shut down time.  There is no need for a wire line or pulling unit either. The pump may be retrieved using the reversal of the circulation of fluid, along with the manipulation of the surface valves.  This can be accomplished in not only vertical wells, but deviated or horizontal wells as well.