Analysis of the characteristics of twin screw pumps used in oil fields
2021-04-20 10:02:22
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The twin screw pump is a positive displacement pump with active screw meshing. There are many structural forms. Today, let's talk about the characteristics of the oilfield twin screw pump.
1. Large flow and high efficiency
According to the previous oilfield twin-screw pump business, the flow rate of twin-screw pumps used in oilfields is relatively large. This should be due to the oilfield oil production tasks and increase oil well production. The twin-screw pump adopts a double-suction structure and has high working efficiency.
2. Use external bearings
The working conditions of the oil field are complex, usually a mixture of oil, oil, water, and sand. The twin screw pumps mostly use external bearings, which are not affected by solid impurities in the materials. The sand content should not exceed 500 grams per cubic meter.
3. High pressure
my country’s oilfields are distributed in many areas, such as Xinjiang Oilfield, which has vast land and abundant resources and relatively long transportation distance. The design pressure of the required twin screw pump is high, which can be as high as 8 MPa, or even higher. Hengsheng Pump Industry once supplied 8 trillion. The PA twin screw pump crude oil export pump has been put into use by oilfield users.
4. Make more into the form of pump skid
The skid-mounted oil and gas mixed transmission twin-screw pump device integrates the control system, centralized lubrication system, mechanical seal forced circulation protection system, and automatic separation and replenishment system based on the mixing pump as the core. Reduce the difficulty of installation and debugging and improve the reliability of operation under 100% gas conditions. The screw pump of the special profile adopts a special design, which can meet the transportation of 100% gas in a short time.
5. The motors are mostly controlled by frequency conversion
Oilfield twin-screw pumps are equipped with motors that use frequency conversion control. The flow rate of the twin-screw pump is proportional to the number of revolutions. The flow rate can be changed by controlling the number of revolutions. The advantage of using frequency conversion control is that the twin-screw pump can be controlled according to the oil production. flow.
