Condensed water

[srh1978]

I have recently heard a new term in the oilfield. People have been talking about condensed water, could someone expend on this please? Am I right in thinking this is water produced from the gas cap rather than the aquifer?
Cheers

 

[DrillerNic]

Yes- It's produced water that is found in gas production that is in the reservoir as water vapour and condenses out somewhere in the production/ separation system (as opposed to conventional produced water, which is in the liquid phase in the reservoir).

 

[ppata]

Hi,
I come just to complete DrillerNic's answer.
That condensed water is produced due to two factors: temperature and pressure. Usualy you can find it on high pressurized reservoirs and is conditioned by the type of flow along the wellbore (from mist to dew). That phenomenon can be found in gas reservoirs and in gas-condensate reservoirs were usualy the reservoir - wellbore flow is defined by a high Reynolds (nonDarcy flow affected by Forheimer effect - inertial).

Best regards,
Andrei

 

[srh1978]

Thanks guys.
I take it will have a lower saturation and be less likely to ppt scale then?

 

[zdas04]

Condensed water is water vapor that has condensed (think of dew on you car window in the morning). This stuff is distilled water a couple of hydrogens and an oxygen. Natural gas at 10 psig and 90F holds 1,100 lbm of H2O per MMCF of gas. If the water had 10,000 mg/L TDS then each barrel of water that evaporates will leave 3.5 pounds of solids behind at the point of evaporation (solids in water become scale, not gases).

David Simpson, PE
MuleShoe Engineering

http://www.muleshoe-eng.com

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