Secondary produced-water deoiling
Assess flotation after skimming or primary separation where the remaining dispersed oil needs an additional removal stage. Feed characterisation establishes whether pretreatment or chemistry is needed.
SECONDARY OIL–WATER SEPARATION
Induced gas flotation for produced water
SAC supplies application-led induced gas flotation options for produced-water deoiling, connecting the selected unit with feed conditions, gas handling and the required outlet water quality.
Discuss your applicationTHE OPERATING CHALLENGE
Give dispersed oil another route out.
A primary separator can remove bulk free oil while leaving smaller dispersed droplets in the water stream. Changing flow, solids loading and emulsion behaviour complicate the next treatment stage. IGF introduces gas bubbles to help collect and lift separable oil for removal.
THE SAC APPROACH
Match bubble generation to the duty.
Induced gas flotation brings produced water into contact with dispersed gas bubbles. Oil associates with the bubbles and rises into a surface layer that is skimmed or collected through an oil-removal arrangement. Multi-cell designs repeat this contact through successive stages before the water leaves the unit.
Mechanical IGF uses driven rotor assemblies to disperse gas. Hydraulic IGF uses circulating water and eductors to entrain gas and generate bubbles. The ETS ENVIRO-CELL reference uses a Venturi-based recirculation system. These approaches have different pumping, maintenance and operating requirements; horizontal and vertical configurations also exist.
Evaluate the flotation package with its upstream separator and downstream polishing equipment. Pumps, recovered-oil handling, gas connections, sampling and oil-in-water monitoring can form part of an integrated skid. Adaptive control functions require a defined measurement strategy and operating envelope. Equipment concept visuals illustrate an arrangement; actual manufacturer geometry and internals vary.
WHERE IT FITS
Preparation for water polishing
Coordinate the IGF outlet with the loading limits of media filtration or another downstream process. Sampling points make the contribution of each treatment stage easier to evaluate.
Treatment-train upgrades
Review an existing installation around its actual hydraulic and oil-removal constraints. A replacement or additional flotation stage must fit the available utilities, access and recovered-oil route.
START THE TECHNICAL DISCUSSION
Make the requirement
clear from the start.
Share the operating basis so SAC can frame a focused evaluation and supply scope.
Contact SAC- What are the normal, minimum and peak flows, including any recirculation duty?
- What oil concentration, droplet behaviour, solids and emulsion conditions define the feed?
- Which outlet specification and sampling method will establish acceptance?
- Which gas source, operating pressure, utilities and vent-handling arrangements are available?
- What installation space, maintenance access, monitoring and control interfaces must be accommodated?
COMMON QUESTIONS
How does IGF differ from a CPI separator?
A CPI supports gravity separation and droplet coalescence across inclined plates. IGF adds gas-bubble contact to lift separable oil. They can perform complementary duties within a treatment train.
What IGF configurations can be considered?
Mechanical and hydraulic bubble-generation systems are available in different vessel arrangements. Define the process duty, then compare the proposed equipment design, utility needs and maintenance requirements.
What determines the treated-water specification?
Feed characteristics, flow range, bubble generation, oil collection and surrounding treatment stages all matter. Representative testing and a defined design basis establish the proposed outlet duty and acceptance criteria.
Bring us the operating challenge.
Tell us about the fluid, system constraints and required outcome. SAC will use these to define the next technical and commercial discussion.
Discuss your requirements