What is the actual power of the pumping unit motor?

Abstract: When the pumping unit is working, the actual power of the motor is less than the rated power due to consumption. The actual power is 75 kWh and the actual power is 66.57 kW. In a day's work, the pumping capacity of oil field pumping units is determined by two factors: oil field and equipment. If the oil field itself is small, it will also affect the efficiency of pumping units. The average daily output of crude oil per well in China is about 4 ~ 10 ton/day. Next, this paper will briefly introduce the actual power of the motor of the pumping unit and how much oil the pumping unit can pump in a day. Come and have a look! 1. What is the rated power of the pumping unit motor?

The actual electricity consumption per hour is: 75kw× 1h=75kw.h (degrees).

When the motor working current is 140A, the actual load power is:

p =√3×u×I×cosφ×η= 1.732×0.38× 140×0.85×0.85 = 66.57 kW。 U rated voltage 0.38kv. Cosφ is the power factor. Eta is efficiency. When cosφ and η are not provided on the nameplate, both of them can be estimated as 0.85. If there is a nameplate, it shall be calculated according to the value marked on the nameplate.

In addition, the actual load power consumption is 66.57kw×1h = 66.57kw.h. ..

The remaining 75-66.57 = 8.43 kW h (kWh) is consumed by the motor. Only by improving the power factor cosφ and efficiency η can the power loss of the motor be reduced.

Second, how much oil can the pumping unit pump in a day?

As we all know, crude oil is pumped by pumping units, but different oil fields and equipment pump different amounts of oil every day.

For example, in some countries in the Middle East, the average daily output of oil wells can reach 500 tons/day. The daily output of high-yield wells in Saudi Arabia, Kuwait, Iraq and other countries can reach 2000 tons, and some even reach 4000 tons.

So, how much oil can a pumping unit pump in China one day?

It depends on the productivity of the oil well itself, and there are great differences between different oil wells. For example, the average daily crude oil production of each well in China is about 4 ~ 10 ton/day, the high-yield crude oil can reach about 100~200 ton (generally for medium and high permeability reservoirs), and the low-yield crude oil is less than 1 ton/day.

Thirdly, the pumping cost of pumping units in oil fields.

"kowtowing machine", that is, beam pumping unit, is a kind of pumping unit. The donkey head moves from the bottom dead center to the top dead center, and then back to the bottom dead center. This process is called stroke. The common punching times are 6, 7, 8 and 9 times per minute, which can be adjusted manually. If it is calculated as 8 times, 480 times an hour, 1 1520 times a day, and the oil production is calculated as 10 ton, 0.86kg of crude oil can be pumped each time.

If converted into price again, the price of crude oil is 50 dollars/barrel, about 350 dollars/ton, which is 0.3 dollars/time.