Performance of ESP system in different situation

[mohsen2396]

Dear Guys

In wells with high water cuts can we use ESP to increase production? What is a better alternative artificial lift method? I've thought that high water cut can damage the motor because of its weak cooling effect(High heat capacity of water)?

What is the relation between permeability, PI , draw-down and ESP performance? ESP need a high reservoir Permeability?

Please answer guys

Thank you

[ELgharib]

Water has High heat capacity than oil means water exchange heat with motor better that oil => High WCT well are very good in terms of cooling effect.
And High WCT means less gas => The pump will perform better.
According to your PI you design the corresponding ESP.
ESP is not affected by the rock properties but rather quality of fluid. (sand production, Heavy & viscous oil, gassy well...)...

[mohsen2396]

Thank you very much

ESP can handle for example 80% water cut ? because water is heavier than oil and it may affect on ESP? May drawdown applied by ESP in reservoir increase the water cut?

[ELgharib]

ESP can even handle 100% water, and the ESP performance curves provide by Manufactuer are based on water of unit specific gravity. AS a normal ESP design process, you must run sensitivity on WCT to see how your pump would perform at different WCT. Operating an ESP doesnt necessarly means apply high Drawdown, if you decide to do so you should weight the effect on Water coning.