1 reply to this topic

[WeiJie]

I am currently using pipephase 9.1 to determine pressure & temperature profile and flow regime of a pipeline (120km). The pipeline consists of gas condensate which is fully vapour at 55 bar, 55C (from booster pump and cooled down by an air cooler).

My question is will the simulation take into account of condensation when the content reached pipe ambient temperature (26C) ?

To more specific for pipephase user, my fluid type is "gas condensate", as for condensate source input
P = 55 bara
T = 55C
Condensate gas ratio = 0 ( as it is fully vapour at that condition)
And the result summary showing no condensation occur throughout the pipeline which i highly doubt it (
When i tried to change the condensate gas ratio to let's say "8", it did give expected result

So what i am trying to find out is how do we define the condensate gas ratio input ?
from my understanding is the Sm3(in liquid volume)/ Million Sm3 (in gas volume) at the current condition which is 55C and 55bar.


Has anyone came across this ? And how do we actually know it takes into account of condensation from result ? liquid holdup ? etc

thanks in advance

[rathodms]

try to check in hysys by expanding and cooling the gas, using the set of the pressure and temperature condition obtained at different section of the pipeline of the pipephase simulation results. if in hysys it shows condensate formation at any set of pressure and temp that prevails in pipeline; condensate may form in the pipeline. u can also check the phase envelope of the fluid stream in hysys.

regards,
Madan

I am currently using pipephase 9.1 to determine pressure & temperature profile and flow regime of a pipeline (120km). The pipeline consists of gas condensate which is fully vapour at 55 bar, 55C (from booster pump and cooled down by an air cooler).

My question is will the simulation take into account of condensation when the content reached pipe ambient temperature (26C) ?

To more specific for pipephase user, my fluid type is "gas condensate", as for condensate source input
P = 55 bara
T = 55C
Condensate gas ratio = 0 ( as it is fully vapour at that condition)
And the result summary showing no condensation occur throughout the pipeline which i highly doubt it (
When i tried to change the condensate gas ratio to let's say "8", it did give expected result

So what i am trying to find out is how do we define the condensate gas ratio input ?
from my understanding is the Sm3(in liquid volume)/ Million Sm3 (in gas volume) at the current condition which is 55C and 55bar.


Has anyone came across this ? And how do we actually know it takes into account of condensation from result ? liquid holdup ? etc

thanks in advance

Edited by rathodms, 23 December 2010 - 12:22 AM.