Gas Velocity Limits

[amittjain]

I have gone through API RP14E recomendations for 2 phase Gas Lines But I need to know what maximum Gas velocities I can have in the system for clean (no solid, liquid) Natural Gas.
Kindly guide.
Thanks

[vmeraz]

Standard practice per our company code is that single phase gas flow shouldn't exceed 60 ft/sec, except for bypass loops or lines that normally don't have flow.

[vmeraz]

Another thought... 
While 60 ft/sec is a common clean gas velocity limit, your max velocity will most likely be much lower and dictated by the desired pressure drop per length of pipe.  High velocities will increase friction losses and require larger compressors. 

[ahmed-m]

not higher than 20 m/s
and for operation, it recommended to operate below above number by 10 to 20 % lower

[tokai]

Production from North Rankin A platform Production from North Rankin A platform (NRA) aims to meet the objective of supplying contract gas/LNG whilst maximising the condensate yield. This paper describes current efforts to increase production of selected wells through an production of selected wells through an extension of tubing flow velocity limits. By doing so, condensate rich wells can be produced preferentially at higher rates and produced preferentially at higher rates and overall flexibility between wells with regards to maintaining contractual gas production can be improved. production can be improved.