Posted by bc on May 16, 2021 at 05:10:05 from (24.255.129.137):
In Reply to: Pipeline posted by rlp in Co. on May 15, 2021 at 10:50:48:
To answer the question, Yes. Pipelines were operated for a hundred years with guys turning the valves. Helped to have radio contact but it was all manually done with real eyeballs on the pressure gauges. I was a former underground propane storage operator back in the day. All manual. Now they have powered valves with the handle still on top to turn manually. Control lines to the wells and valves are loaded with nitrogen. All the pump stations had a control room full of gauges and buttons but are all computer assisted now. They would rather pay a kid to sit on a computer instead of have 5 guys out in the field going around turning valves. Have safety popoff valves in case something pressured up too much but nowadays they can't have those going off and leaking stuff out.
I drive by an oil refinery and a propane/butane/natural gas liquids fractionator plant every day along with underground storage of those products and a natural gas storage in the underground salt layer. Not uncommon to see something venting into the air although they keep flare stacks burning all the time. Sometimes see the flare barely burning and then flames shoot way up from a release of gas. Really lights up the sky at night when it happens.
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