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Yes, an acoustic switch. Google for "Leaking Oil Well Lacked Safeguard Device" for a good WSJ article on it.
by pinko 17y ago
Yes, an acoustic switch.
Google for "Leaking Oil Well Lacked Safeguard Device" for a good WSJ article on it.
- by 17y agoBut from reading the article http://online.wsj.com/article/SB10001424052748704423504575212031417936798.html http://online.wsj.com/article/SB1000142405274870442350457521... the acoustic control just activates the blowout preventer, and the dead-man switch should do the same thing. But I don't know anything beyond reading the article.