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    Separation solutions
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The ZSQ® Inlet Device is a low shear device, which substantially reduces the inlet momentum (into the very low hundred kg/ms² (Pa) at the outlet). It also promotes very early rapid degassing at the inlet end of the vessel, enhances oil recovery, whilst eliminating the potential for droplet shatter.

The ZSQ® Inlet Device provides both flow distribution and fluid processing, created by the small fluidic vacuum produced across each ZPC Vane around the ZSQ® Inlet Device. This causes the unusual characteristic of degassing with, what in lab tests have shown to be, bubbles of a very uniform size. These bubbles provide what is considered to be a "gas flotation effect" to the oil droplets allowing enhanced treatment of small oil droplets. Due to the slow spiral action of the flow exiting the ZSQ® Inlet Device, droplets have a longer time to rise to the surface, hence providing greater opportunity to coalesce with other droplets to form larger droplets, assisting in the separation process.

Advantages of the ZSQ® Inlet Device:

  • Ideal for degassing and provides excellent oil recovery performance
  • Makes the best use of the volume available for degassing
  • Handles high throughput and inlet momentum
  • Enhances interface level control
  • Provides a minimal pressure drop
  • Can operate with any orientation of the inlet nozzle
  • Not prone to blockage by solids
  • Wide operational range – typically, providing 100% turndown
  • Reduces the size of the inlet nozzle on a new build project
  • Allows a greater fluid throughput for a set nozzle size on a revamp project
  • Easy to install in new and existing separators
  • No moving parts, thus no maintenance.

Applications of the ZSQ® Inlet Device:

  • Produced Water Separators
  • Degassers
  • Surge Vessels
  • Skimmer Vessels
  • Enhanced Oil Recovery Systems
  • Floating Production Units (FPUs).

Case Studies

Ruby II (Vietnam)


The Ruby Field is located in Blocks 01 & 02 offshore Vietnam and is approximately 155 km northeast of Vung Tau.

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