How is oil pumped from a well? Did you know that special electric submersible pumps are used? They work inside of a well, on the very bottom. We are going to visit the city called Raduzhniy where these pumps are produced by “Almaz” (“Diamond”) company which is the only manufacturer of all submersible equipment for oil extraction in Western Siberia.
95% of all details of the produced equipment are made here, in Raduzhny. That’s why production of new equipment starts in the shop where old equipment is recycled. This cable is to be remelted soon.
As a result they take out such thick wire from the stove.
It should undergo drawing to get necessary cuts.
Spools with wire are burnt for making the copper more plastic because it becomes fragile and rigid after the drawning. Then they apply insulation on each wire.
The special machine wraps three wires with woven or needled fabric (the material similar to thick wool).
What they get is armoured cable.
It looks like this when ready.
It should be checked before delivery to a customer.
Then it needs to be packed. The total length of the cable to the motor may reach 4,5 km (2,8 miles) or more.
The well depth may vary. But it is kilometres long. The pump is located on the very bottom. The cable goes through the whole well and provides uninterrupted supply of electricity. It works at the temperature of 120 – 230 C (250 – 450 F). Now the pump itself and the motor are to be made.
Some details are melted here.
Others come in such a form.
The result is ready elements of the pump and the motor.
Diameter of the motor and the pump may vary from 9 to 13 cm (3,5 – 5 inches). At that they should get the power enough to pump oil on the height of three kilometres (1,9 miles). That’s why all the equipment is long and thin.
On the photo above the worker is assembling the future rotor of the motor.
The elements are stuck on the common shaft and the result is the motor of necessary power and length.
It’s the mechanical treatment of the motor shaft.
The pump itself represents hundreds of small centrifugal pumps which work on one and the same shaft.
These are the assembled sections of such pump.
Oil will flow through this inlet. On the bottom is a special cap, it’s the place where the motor will be fixed at.
These are different parts of centrifugal pumps.
And it’s the transport conveyor for the pump.
Here they make winding cable for electric motors.
This machine is used to winding cables with dielectric film.
Winding of electric motors is a job for women. They are more careful.
Here they work only manually.
Under the pump they fix a block with sensors (temperature, pressure, vibration).
It’s the pilot well for testing ready products.
This cable is already old and will be replaced soon.
Of course everything is much more complicated but it already goes beyond this story…