Pipeline Drying
Pipeline Drying
(OP)
Hello,
I am trying to correlate the time required to dry a pipe using dry air to factors such as air flow rate, air temperature, pipe length, pipe diameter etc. I know that the pipe inner wall conditions are a major factor so assume that brush pigging has already been performed and the inside is clean.
Cheers
-Marko
I am trying to correlate the time required to dry a pipe using dry air to factors such as air flow rate, air temperature, pipe length, pipe diameter etc. I know that the pipe inner wall conditions are a major factor so assume that brush pigging has already been performed and the inside is clean.
Cheers
-Marko





RE: Pipeline Drying
hope this helps.
good luck!
-pmover
RE: Pipeline Drying
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Pipeline Drying
pmover & BigInch are correct, you can't do it based on a calculated time. It takes some form of actually taking a reading. The time required will depend on many factors, including type of equipment used, volumes of compressors, length of pipeline, dew point requirement, etc. Vacuum drying takes longer than dry air.
As BinInch has, I have also used the old tried and true method which is to run foam pigs, weigh them before & after and when you get within a few percent, good to go. Unfortunatley you can't detemrine a dew point if that is a critical factor.
You can use menthanol as well, though dispoal may be an issue.
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: Pipeline Drying
RE: Pipeline Drying
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/