Artificial lifts are pressure inducing devices that are used to increase the flow of liquids like oil and water and bring it up to the surface.
In many natural reservoirs in the US, the reservoir pressure is not enough or decreases over time and as a result is not strong enough to push the oil to the top.
This is where artificial lifts come in, and a mechanical pump is inserted in the reservoir to increase pressure and let the oil rise to the top.
This device is especially significant at present, due to the growing global demand for oil and gas.
TYPES OF ARTIFICIAL LIFTS
The most common type of artificial lifts are beam pumps, which consists of a sucker rod strings and a rod pumps. The beam pumping system is above the surface of the well and moves to and fro and connects to sucker rods. The sucker rods are in turn attached to the rod pump at the bottom of the well.
The pumping units are operated via a prime mover, and pull the oil up to the surface. The pump engine can achieve 600 revolutions per minute and must therefore be slowed down.
The IronHorse drives available at Spocautomation.com have sensor less pump off controller (SPOC), which is helpful in this process as it reduces the speed of your beam pump when the pump is off. This saves precious time as you do not need to stop the engine’s motor and shut down the well.
You can also maximize your oil production with the IronHorse drive as it has a self-teaching modewhich operates the pump at optimal speed for each well’s inflow rate.
Another type of artificial lift is the hydraulic pump that has pistons instead of sucker rods, and are placed one above the other.
These pistons are held together by a rod that movies upwards and downwards.
There is a surface hydraulic pump which sends clean oil to the subsurface hydraulic pump and the oil that has been pumped up is sent up to the top.
Electric Submersible Pump
These systems use a centrifugal pump which is attached to an electric motor.The pump has blades that drive the fluids up the well.
A cable also connects the centrifugal pump to some electric power source above the surface.
The electric submersible pump system can bring to the surface more than 25,000 barrels of oil every day.
In this type of artificial lift, compressed gas creates pressure in the well and reduces the thickness of the fluids in the well and this makes it easier to rise to the surface.
Why Is It Necessary
With the advancements in science and technology, the artificial lifts will also be innovated further according to the rising production demands.
In a world where there is a growing need for unconventional sources of oil and gas, like shale oil and ultradeep water, artificial lifts have come to the forefront.
This is because only such devices can these unconventional sources of oil and gas.
By 2020, this $14.8 billion market is expected to double and the demand for artificial lifts will continue to rise.