As water is present in all hydrocarbon-bearing rock strata, produced water is by far the largest waste stream associated with oil and gas production. The water-to-oil ratio increases during the life time of a conventional oil or gas well. Besides in many cases optimization requires re-injection of water. Generally the produced water includes a mixture of hydrocarbons and solids, such as sand or silt. It can also contain fluids and additives from exploration and production activities. The costs of handling, treating and disposing of produced water in an environmental responsible way are substantial.
Twin Filter offers solutions for the produced water process. There are three stages for this process: primary treatment, secondary treatment and tertiary treatment. The primary treatment of produced water involves multiple technologies – from upstream sand removal utilizing solid/liquid hydro cyclones at wellhead conditions through multi-phase separators and collection vessels to solid/liquid and liquid/liquid hydro cyclones. After primary treatment of produced water providing the first oil cut, the secondary treatment conditions the produced water in preparation for discharge or further polishing.
Primary and secondary water treatment systems will meet 90% of the requirements for discharge limits. If however, further water polishing is required and can be achieved using tertiary produced water treatment through additional filtration – a final cleaning stage before water is discharged overboard.
Scope of supply:
• Dynamic Centrifugal Coalescer
• Hydro Cyclone
• Flotation Unit
Contact us to learn more.