Submersible screw pump oil production complete sets of equipment

I. System Main Parts
The submersible direct drive screw pump oil production outfit mainly includes: permanent magnet submersible motor and protector, thrust short connector, flexible shaft, screw pump, control cabinet and cable.

• Permanent magnet synchronous submersible motor.
• Motor protector for well-liquid insulation and pressure balancing.
• Thrust short connector for axial load.
• Flexible shaft for torque transmission and eccentric transformation.
• Screw pump for lifting grease fluid.
• Control system for parameter adjustment, operation protection and harmonic handling.
• Special under-well cable for power transmission.

II. Connection of Parts
Parts are equipped with connection flanges and bolt holes. Screw pump uses oil-pipe thread ports, and motor upper side includes submersible cable plug ports.

III. Working Principle
The ground control system drives the under-well permanent magnet synchronous motor through submersible cable to achieve crude oil lifting.

IV. Movement Features

• No movable parts at wellhead; static seal mode supports safe and environmental operation.
• No moving parts inside oil pipes, reducing eccentric wear and improving service life.
• Direct motor connection improves transmission efficiency, with average power saving around 40%.
• Strong adaptability for high-viscosity crude oil lifting.

V. System Reliability

• System plan can be customized according to well conditions.
• Overall heat resistance can reach up to 120C.
• Special under-well armoured cable and optimized internal material configuration.