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Snow melted over pipeline

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allischalmers6

Member
Went out to my camp just a few miles south of the PA/NY border and went riding my quad down the 2 pipelines that parallel the camp. The new pipeline that was built in 2005 flows methanol through it and had a regular February snow cover on it. The other pipeline built in the 1960"s when we rode down it, had all the snow melted that was directly over the pipe. This melted snow was about 2 feet wide and went along as far as we rode. This pipeline I don"t know what runs through it. Any idea why the snow would be melted, and how an un-insulated pipeline could retain that much heat to melt snow for many miles beyond what we rode? For the curious the pipelines in my area converge into a massive pump station operated by Dominion in a little settlement called Ellisburg, PA.
 
Pressure & friction from flowing through a pipe generate heat. Other factors such as depth of burial, & type of soil used in backfilling the trench affect the heat transfer to the surface.
JMHO
Willie
 
Crude oil; because crude oil is relatively thick, they normally heat it so that it will flow through the pipes and especially during the winter months so that it doesn't congeal in the pipes.

Doc
 
Well, my tractors don't run on natural gas, but natural gas pipelines run through my property and snow does melt off the lines first.
 

A crude oil pipeline passes through the town in northern NH where I was born and raised. It runs from Portland ME to Montreal. It always freezes in the winter and becomes a snowmobile trail. It must be buried deeper.
 
Used to work several farms here in SW Ontario that pipelines ran through from Sarnia to Montreal. As said before, crude oil is heated to make for easier flowing. Had to watch in the late fall when we would sometimes depend on running on frost to pick/combine corn or plow. Frost would not happen over the pipelines till it had been colder longer.
 
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