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Oil Production And Desalting Unit

gas condensate

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#1 Ali4269278331

Ali4269278331

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Posted 25 February 2024 - 02:42 PM

hi dear guys

in the our plant, when the gas separated of crude oil in the separators or tanks we have gas condensate too much in the gas lines. i know very well that main parameters is temprature difference between two points but i would like to know how do i reduce the gas condensate in the piping? do you think use of chemical injection? which is composition?

we have too much problem with gas condensate. if need to more data i'm ready and sent.

 

prosess data:

oil temp.:60oC

oil pressure:0.9-5bar in vessel & 40mbar in production tank

API:25

H2S, SALTY CRUDE OIL

Use of chemical injection like demulsifier, antifoam, oil & gas corrosion, asphaltene, h2s scavenger in the processing

 

thanks



#2 Bobby Strain

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Posted 25 February 2024 - 07:15 PM

It is most likely carry-over from the separator, not condensation. Where does the gas go?

 

Bobby



#3 shvet1

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Posted 25 February 2024 - 11:05 PM

i would like to know how do i reduce the gas condensate in the piping? 

 

1/ Doublecheck design/operation of upstream equipment

2/ Heat the gas +5°C above dew point and winterize downstream stagnant sections.


Edited by shvet1, 25 February 2024 - 11:11 PM.


#4 Ali4269278331

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Posted 27 February 2024 - 12:59 PM

 

i would like to know how do i reduce the gas condensate in the piping? 

 

1/ Doublecheck design/operation of upstream equipment

2/ Heat the gas +5°C above dew point and winterize downstream stagnant sections.we didnot check this action. where is i find the dew point? i checked the process simulation report(hysys) but i could not find it.

 



#5 Ali4269278331

Ali4269278331

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Posted 27 February 2024 - 01:03 PM

It is most likely carry-over from the separator, not condensation. Where does the gas go?

 

Bobby

thanks for your sharing, yeh i agree with your idea about the carry over, but i have gas condensate in outlet gas from oil storage tank(30-40mbar and 40% liquid level) then gas goes to the flare.



#6 Bobby Strain

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Posted 27 February 2024 - 04:43 PM

Heed the advice of Shvet1. Vapor in contact with liquid is always at its dewpoint. So, any cooling in the piping will result in condensation if the pressure is maintained. A PFD might get you some more suggestions.

 

Bobby






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