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Ah I got the Crit pt for C7+ (PR correlation) Ct=-52.63C Pt=76.39bar. Still have a big gap b/w u guys results.

Thank all you guys. If i use pure C7, my result is Crit Point --47.38F 1267pisa pure C8 Crit Point -46.35F 1316psia pure C9 No Crit Point found. I used PR correlation also. When i changed to SRK No crit pt found for C8, C9. However, i still think we cant ignore the...

Thx for your usefull help. I think it's not a great ideal when you assumed the compositions of C7,C8,C9 because the C7+ includes not only the C7,C8,C9 but also the C10 to C40. That's why your phase envelope will not correct 100%( i guess)Anyway, could you pls send the phase diagram via my email...

Could you guys try to draw a phase diagram for this composition below? I know the PVTsim limits the range of lower temperature and pressure. However, in my opinion the appearance of the critical pt does not depend on the software. Recombined Comp C1 0.8228 C2 0.0952 C3 0.0464 iC4 0.0064 C4...

I use the PVT sim to recombine the fluids and i think the correlation in my situation is SRK standard. Do i answer exactly your correlation question? Seem i dont get close to your thermodynamic correlation. I brought the recombined fluid into the Pipesim also, but it still showed no critical...

I did recombine the condensate and the dry gas to find out the recombination of fluid at reservoir condition. However, my phase envelope did not show the critical point. Is that a resonable result? And if the fluid has not a critical point, could you guys explain for me?

I just learn to study Pipeline simulation. Could you explain the terms "Slugvoid" & "Bubblevoid" ? and give me some addresses in the Internet about these ?

Thanks DrillerNic, but Daniels boxes and orifice meters can be used as a custerdy gas meter ?

Thanks DrillerNic, but Daniels box & orifice meters can be used as custerdy meter. Beacause i need an custerdy gas meter in this case

Thank for useful idea. But I think that, if we set up an ultrasonic gas measurement we will set up more additional equipment like: generator, indoor& master computor,gas chromatograph panel... alls not suitable for unmanned platform like monotower. I think in this case we need onother kind of...

I have a case folowing: A field with reserves are 65 Bcf, Developping facilities are include: 01 monotower, 01 gas producer with peak flowrate is 30 MMscfd, produced gas wil be transported to another platform for processing by a 10"x10.5 km sub-sea pipeline. We have to set up a gas metering...