# Why Wet Crude Needs Surge Vessel And Dehydrator Desalter

1. Sep 30, 2015

Hi
We have 2 type of crude wet crude and dry crude .
My questions is
1- is the different between these 2 is the water percentage ? is this the only different ?
2- During the separation the crude the dry crude go through the separators then to boot then to flow suction tank.
but why the wet crude have to go through a surge vessel then to hydrator desalter , what’s the function of surge vessel and the dehydrator and why it must go through these 2

2. Oct 5, 2015