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[sniperel]

Dear friends,

I want to know if it's posible to design a system of separation oil/water/gas as follows:
- 3 phase separator that will bulk separate the phases
- liquid-liquid coalescer that will separate oil/water

Thank you very much for your help.

[ankur2061]

sniperel,

For bulk separation of oil, water and gas phase a separator would be the right equipment.

A liquid-liquid coalescer is normally used in a produced water treatment system downstream of the API or CPI separator to remove finely dispersed oil particles in the produced water. Oil separation can be achieved to the level of 99.9% of all oil particles below 5 microns. Refer the liquid-liquid coalescer design manual at the link provided below:

http://people.clarks...ign/coalesc.pdf

Hope this helps.

Regards,
Ankur.

[sniperel]

Dear Ankur,
I would like to thank you for your information. I found over internet that for a three phase separators, some manufacturers specify the water in oil content between 0.2-0.5% vol. It doesn't specify if the separators have some special internals.
Can you please tell me if the range 0.2-0.5% vol. water in oil is common for the three phase separators with only a overflow baffle?

If the three phase separator will be equipped with internals (inlet device, calming baffle,wave and foam breaker,coalescing media,mist eliminator) it is possible to achive very low concentration of water in oil and oil in water so it will not be necessary additional equipments to meet the specification for water and oil?

Thank you very much.

[ankur2061]

Sniperel,

A well designed 3-phase separator with overflow baffle or weir should be able to give a maximum 500-1000 ppmv of oil in water which corresponds to 0.05% to 0.1% water-in-oil. 3-phase separators with special internals such as plate packs, double weirs, water boots etc. can reduce oil-in-water to as low as 200 ppmv in the outlet oil stream.

Hope this helps.

Regards,
Ankur.

[sniperel]

Dear Ankur,

Thank you very much. You helped me to have a clear picture about three phase separators. Can you please tell me what will be the effect of the special internals for the water in oil content compared with a simple overflow baffle? I assume that it will be also reduced but I don't know how much (ppm).

Best regards.

[ankur2061]

Sniperel,

I have already mentioned that with very efficient internals you could achieve as low as 200 ppmv or 0.02% by volume for water-in-oil.

Regards,
Ankur.

[breizh]

Let you try this link , a lot of information available on Internet . You should consider to contact Vendors to support your query .

Breizh

http://www.google.fr...iw=1116&bih=636

Edited by breizh, 08 July 2012 - 12:00 AM.

[sniperel]

Thank you very much for your support.