"molecular seal" is an unfortunate name given to a flow restriction installed in a flare stack to minimize the amount of purge gas required. Purge flow is required to prevent air ingress into the flare stack. The flare vendor will have to provide details on design options and required purge flow.
zdas04,
Get a copy of the SPE Monograph of Well Flow. Then contact Dr. James Brill at the U. of Tulsa to get the errata if the SPE doesn't supply it with the errata.
Skywalker09,
I think I can help with your questions:
1. Olga is a good tool for studying JT cooling assuming an appropriate thermo model has been built into the model you are running. Consult one of the flow assurance firms if you have questions about building the thermo model.
2. Critical...
