What is an ESP pump?
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.
How do ESP wells work?
An ESP is a multistage centrifugal pump whose stages are stacked; the operating requirements of the well and completion design dictate the number of stages. Each stage contains a rotating impeller and stationary diffusers typically cast from high-nickel iron to minimize abrasion or corrosion damage.
Is an ESP a good option for a rod pump well with solids issues?
As a rule, ESPs have lower efficiencies with significant fractions of gas, typically greater than about 10 percent volume at the pump intake. Given their high rotational speed of up to 4000-rpm and tight clearances, they are also only moderately tolerant of solids like sand.
What are the components of ESP?
The main components of an ESP consist of collecting electrodes/plates, discharge electrodes, inlet and outlet perforated screens, insulators for the discharge electrodes, rappers, and one or more electrical transformers.
Is ESP a centrifugal pump?
The electrical submersible pump (ESP) is a multistage centrifugal type.
Which is better submersible pump or jet pump?
Submersible pumps are better for higher demand water units. However, jet pumps are better for draining unwanted ponds or bodies of water. Submersible pumps will help you save energy as they don’t need as much power as jet pumps for operating. Jet pumps require a bit more maintenance than submersible pumps.
What pumps are used in oil wells?
Centrifugal pumps are the most common type of industrial pump used in the oil and gas industry. Centrifugal pumps contain one or more rotating impellers that suck fluid into the suction end of the pump before forcing it out the discharge end using centrifugal force.
What is head in ESP pump?
The head/flow curve shows the head or lift, measured in feet or meters, which can be produced by one stage. Because head is independent of the fluid SG, the pump produces the same head on all fluids, except those that are viscous or have free gas entrained.
How does electrical submersible pump work?
Electrical submersible pumps (ESPs), much like vertical turbine pumps in design, are typically used to pump liquid. Essentially, an electric motor drives the pump, and the fluid’s kinetic energy is increased. This energy is then partly converted into pressure, which lifts the fluid through the pump.
What does an impeller do?
An impeller increases the velocity of a fluid (a liquid or a gas) that is forced through a tube at an increased pressure. Pumps and compressors that use impellers are commonly used to transport fluids and gases in pipelines over long distances.
How does an electric submersible pump work?