The P&ID snippet was just to show the reducers and non-barred tee. This is a 15 km flow line with a 40m elevation change, where reduced flow suggests possible debris buildup.
The pressure requirement is estimated at 30 bar (23 bar calculated for elevation, friction, and bends, with a safety...
Hello all,
I’m looking for some guidance on cleaning a 15 km non-uniform pipeline that alternates between 4" and 6" Schedule 80 sections, with reducers, bends, and a non-barred tee section (P&ID attached for reference). We’ve calculated a total pressure loss of approximately 30 bar at a flow...
Hi all,
Thank you so much for your insightful responses!
As Mr. LI mentioned, the spec does seem extreme, but the client is insisting on it. The maximum dew point we’ve achieved so far is -10°C
Dewatering after the hydrotest will be done with a bi-di pig, followed by swabbing using light...
Hi everyone,
I'm seeking advice on drying a 56-inch diameter, 20 km long carbon steel sales gas pipeline for pre-commissioning. The required dryness level is exceptionally low, with a water content target of less than 0.1 ppmV.
We typically use nitrogen purging for drying, achieving a dew...
