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Surface Drive Screw Pump Oil Production System

The ground device has a simple structure and is easy to install, and can be directly connected with the wellhead casing four-way, and covers small area.
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Product Advantage

Wide range of viscosity,  lift heavy oil

Adapt to high sand content wells and high gas content wells


Product Detail

Ⅰ. Working Principle

The surface drive device controls the motor via the control system and transmits the power to the rotor via the drive card, polished rod and sucker rod. The interference fit between the stator and the rotor will produce a continuous cavity and media transfer can be achieved via the rotational motion of the rotor. As the rotor rotates, sealed cavities will be continuously formed between the rotor at the suction side and the internal surface of the stator rubber bushing, be pushed towards the discharge side and vanish at the discharge side. The oil will be sucked under the pressure difference at the suction side and be squeezed from the suction side to the discharge side. The pressure is continuously rising and the flow rate is extremely uniform.

Ⅱ. Peformance Features

●Compared with electric submersible pumps, hydraulic plunger pumps and pumping units, screw pumps have a simple structure and low one-time investment.

●The ground device has a simple structure and is easy to install, and can be directly connected with the wellhead casing four-way, and covers small area.

●High pump efficiency, low energy consumption and low management costs. Pump volumetric efficiency up to 90%, it is one of the lowest energy consumption and high efficiency of existing mechanical oil production equipment.

●Wide range of viscosity,  lift heavy oil.

●Adapt to high sand content wells and high gas content wells.

●Allowing a higher back pressure at the wellhead, and controlling the back pressure of the wellhead to be within 1.5 MPa or higher, which is beneficial to gathering and transporting in remote wells.


Ⅲ. Specification Parameters

Permanent magnet direct drive type drive specification table

Specification of Drive

Rated Power (kw)

Rated Torque (N.m)

Rotating Speed (rpm)

Voltage (V)

Insulation grade

Protection level

Applicable Polished Rod

Sealing Type

LBQ5

5

200

0-200

380±15%

F

IP55

Φ25~Φ42

Packing/Mechanical Sealing

LBQ12

12

600

0-200

380±15%

F

IP55

LBQ17

17

800

0-200

380±15%

F

IP55

LBQ21

21

1000

0-200

380±15%

F

IP55

LBQ26

26

1200

0-200

380±15%

F

IP55

LBQ31

31

1500

0-200

380±15%

F

IP55


More information,please download the above PDF brochure.Thank you!

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