Produced Water Treatment

• Deoiling Hydrocyclone Vessel Packing
• Bulk Oil Hydrocyclone
• Combination Technology
• Desanding Hydrocyclone
• Degassing Hydrocyclone
• Down Stream Degassing Vessel
• Residual Oil Adsorption Vessel
• Chemical Pre-treatment systems

Deoiling Hydrocyclone

The result of an intensive KGD testing programme giving a hydrocyclone with:

• High flow for a defined pressure drop
• High oil removal efficiency
• Solid stellite inlet, primary and secondary separation sections
• Single Welded Joint reduces flow disturbance
• Duplex End Section

Deoiling Hydrocyclone Vessel Packing

Bulk Oil Hydrocyclone

• Used for water continuous dispersions
• Feed Oil concentrations up to 45%
• In series with deoiler can reduce to <30ppm oil
• Overflow ratios up to 90% oil/10%water
• High grade construction materials generally as per deoiler hydrocyclone
• In combination with other technology e.g. centrifuges and deoiling hydrocyclones can give very clean product streams

Combination Technology

Desanding Hydrocyclone

A KGD in house development characterised and proven at Camborne School of Mines. The S-Type hydrocyclone is targeted to fit applications found in the oil and gas industries. Size for size one of the highest flow hydrocyclone units available and still maintains class beating solids removal characteristics.

Degassing Hydrocyclone

Supplied in liaison with ConSepT Engineering, A stand alone unit or fitted inside a separator. Suitable for retrofits. Aid to liquid / liquid separation by removing gas. Benefits include:

• Reduced foaming
• Reduction in the use of chemicals
• Handles slugging flow
• Reduces oil droplet shearing
• Prevents fluid back-mixing.

Down Stream Degassing Vessel

The KGD Degassing vessel is based on well established principles. We can incorporate inlet degassing hydrocyclones to reduce overall vessel size. A sparge system can enhance the removal of residual free oil following the produced water treatment deoiling hydrocyclones.

Residual Oil Adsorption Vessel

Used downstream of deoiling hydrocyclones or degassing vessals. Operates like a downflow media filter to adsorb residual oil. Media is removed on a regular basis depending on rate of oil contamination.

Chemical Pre-treatment systems

Deoiling hydrocyclone efficiency can be improved by upstream chemical injection. Selection of the right chemical for an operating system is the key to success. In summer 2000 we solved a particularly difficult emulsion separation problem using our deoiling hydrocyclone with an upstream chemical provided by Ondeo Nalco. The pilot plant pictured reduced an emulsion with a mean oil particle size of 2-5 microns and an oil concentration of 3000ppm, to less than 30ppm.