2 replies to this topic

[ahmadqq]

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

 

see the attachment

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[Chemitofreak]

Hi,

 

Actually you have provided very little information in your query, but still I will try to answer.

 

1. Desalter Dehydrator:

Desalter is provided in oil & gas industry to remove salts from the crude (salts cause corrosion). Please note that the salts are not dissolved in the oil, salts are present in the water associated with the crude mixture (i.e. Oil-Gas- Water Mixture). For more information about operation of the Desalter just GOOGLE and you will get loads of information.

 

2. Surge Drum:

Surge Drum is an additional storage space, such drums are provide when the volume of the crude is high. The surge drum will allow to operate the plant for a limited period of time in case there is some problem at the upstream system of the surge drum.

 

The desalter and surge drum are provided in the second system, because the crude is wet (removal of salts) and to operate the plant (for a limited period of time) in case there is upset in the upstream system. 

 

Hope that answers your query

 

Revert in case of any doubt.

Edited by Chemitofreak, 30 September 2015 - 03:12 AM.

[ahmadqq]

thanks you Chemitofreak for your answer

 

its clear in deslater but still confused in Surge Drum funtion , can you give examples of what these problem could be