Obama has halted any new offshore drilling projects unless rigs have new safeguards to prevent another disaster.
Estimated six billion gallons of oil in that well. Estimated leaked so far anywhere from two million to four million gallons.Deepwater Horizon well lacked $500,000 shut off valve safeguard required in almost every country except U.S.
Rigs in Norway and Brazil are equipped with the remote-control devices, which can trigger the blowout preventers from a lifeboat in the event the electric cables connecting the valves to the drilling rig are damaged.
While U.S. regulators have called the acoustic switches unreliable and prone, in the past, to cause unnecessary shut-downs, Inger Anda, a spokeswoman for Norway's Petroleum Safety Authority, said the switches have a good track record in the North Sea. "It's been seen as the most successful and effective option," she said.
The manufacturers of the equipment, including Kongsberg Maritime AS, Sonardyne Ltd. and Nautronix PLC, say their equipment has improved significantly over the past decade.
The Brazilian government began urging the use of the remote-control equipment in 2007, after an extensive overhaul of its safety rules following a fire aboard an oil platform killed 11 people, said Raphael Moura, head of safety division at Brazil's National Petroleum Agency. "Our concern is both safety and the environment," he said.
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Exxon Valdez spilled 11 million gallons.