CTour®..Just one of 6 PURE TechnologiesProPure’s process is considered the only cost-effective technology that removes both dispersed oil and dissolved aromatic
components from large volumes of produced water.
The CTour® technology was originally developed at RF Rogaland Research, in collaboration with the majority of the operating companies on the Norwegian Continental Shelf.
The proprietary technology and underlying process model have been validated through a series of fi eld tests, and are now scheduled for full-scale installation at offshore production facilities in the North Sea.
CTour® is currently considered Best Available Technology (BAT) for treatment of large volumes of produced water.
The process removes dispersed oil and dissolved hydrocarbon contaminants by means of condensate, which is injected and mixed with the produced water. During on-line mixing, the hydrocarbon contaminants are extracted from the water into the condensate phase, where the oil and condensate droplets coalesce.
The condensate, which contains the contaminants, emerges through the hydrocyclone reject and is recycled to the original production.
De-oiling of produced water in a hydrocyclone/degasser confi guration yields an average discharge concentration of approximately 25 ppm in the Norwegian sector of the North Sea.
The CTour® Process will yield residual oil discharge of less than 4–5 ppm. In principle, the CTour® process can be implemented on all
production facilities – upgrades as well as retrofi ts – where
condensate is available.
ProPure AS offers various optional solutions for implementation of the CTour® Process. The solutions can be adapted to suit specific process conditions at the production facility.
CTour® benefits
• Reduces oil in water to below 4–5 ppm
• Reduces dissolved hydrocarbon components by 80–95 %
• Removes some production chemicals
• No waste products
• No chemicals added
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