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Looking at determining system pressure after failure of isolation of discharge pressure to suction piping(lower pressure rating). The calculation requires finding the final pressure. T final= H/(Cp*Total mass) - at settleout with combined suction and discharge masses and volumes P final =...

Is it a hard and fast rule that the PSV discharge pipe be at least as large as the PSV discharge connection? I am looking at an as-built pump skid with a blocked discharge PSV -1"x1" - with a 3/4" connection to a 2" line back to the tank. Don't have API 520 with me and no discussion I have...

Greetings, I am in need of appropriate sources and assumptions to evaluate the residence time needed for producing a shallow sands oil to a test separator already serving test production from a deeper, warmer, less viscous oil. A cursory look at shallow well rates for oil, water, and gas...

GVF is Gas Void Fraction not FVF.

We found the definition of GVF, but it still didn't answer this question. What is GVF in comparison to GOR?

NOT Yokogawa

Friends, I am designing well trunk and lateral systems and was wondering if there was a link to API-14C and was wondering if there was any other useful information outthere regarding design of oil production systems.

USA, micah.repp@nana-colt.com

Patrickraj, Don't have that book. My fax is 907-273-3990 if you can spare a copy.

Saxon- I wouldn't mind having a copy of that for documentation. Mind sending a fax or snail mail? Mrepp

Thanks for the info Saxon, and you summarize the condition correctly. I was looking for something other than a derivation for this, count on Crane to get you a nomograph or something "practical" considering time given to do our "art" these days. Do you remember what the...

I am specifying a heater for a new tank. My bright idea was to use the glycol available at 180 F and route it through the interior of the tank in 2" welded pipe and coil it until the appropriate BTU's are transferred. Considering the tank has no mixing, assuming the fluid is stagnant, how...

Trying to add a servuce to an existing PD pump. I am sizing a PSV off the pump and am pinched between it and the MAWP of the pipe to the point where the magnitude of the pulsation might not allow the PSV setpoint to be within the allowable 10% overpressure. Any relationship to predict the...

Thanks 25362, that is the data I needed. I was looking at crane (which is most of the time), and it has limited data, my Perry's has some dust on it. Morten, good point, we should consider providing guidance for operating when the mol sieve drying unit is down in the winter time. We already...

At 450 PSIG and -60 F what is the saturation concentration/ partial pressure of water? We trying to reduce the water content of a stream to prevent hydrate formation. It our understanding that water needs to be present to create hydrates. The HYSYS model runs out of significant figures for...

LN vapour pressure =(0.001786-1/567.6)x9015 Could you explain the elements of this equation

Please confirm if your VBF is operating to create a vacuum in your process. If this is a vacuum distillation type operation then you should verify the end vacuum pressure value. Another vacuum type check should be done on the entire system to make sure the system is air tight. The system...

Super G- What was the process guys answer? So it was a flash calc you were looking for to see what the liquids rate would be? If so I thought the valves in pipephase would work for your purpose of estimating.

Took a whole semester in physical chemistry and couldn't have told you even then. Contact analytical product vendors and ask the specialists.

Gary, I use pipephase to do multiphase pipeline flows. You need inlet pressure and temperature and a either a JT valve that lets pressure down or a compressor and cooler to condense. Specify inlet conditions and outlet pressure and use pipephase to solve for temperature and phase concentration.