The blowout preventer looks like a five-story fire hydrant. It weighs 325 tons and costs $18 million. At the Deepwater Horizon oil rig, it sits on the ocean floor, a mile deep, reachable only by robotic submarines in the murky and freezing currents. By a complex series of valves and gaskets, the massive device is supposed to keep oil and gas from rocketing toward the surface and blowing up the oil rig and its crew of 126, which float on the warm waters of the Gulf of Mexico, about 50 miles from the mouth of the Mississippi River. But the blowout preventer was breaking down.
On the afternoon of April 20, workers on the Deepwater Horizon rig noticed bits of rubber gurgling up through the pipe that connects the rig to the well. Not a good sign, thought Mike Williams, the chief electronics technician. But he says that his supervisor told him, in effect, no big deal.
That night, the diesel engines that power the rig’s electrical generators began to race and run wild. They were sucking in gas that was suddenly flowing up through the pipe to the well. “I’m hearing hissing. Engines are over-revving. And then all of a sudden, all the lights in my shop just started getting brighter and brighter and brighter. And then I knew, we were, something bad was getting ready to happen,” Williams told the CBS News show 60 Minutes. A three-inch-thick steel door blew off its hinges and flung him across the room. “And I remember thinking to myself, this, this is it. I am going to die right here.”
Down in the bunk room, Stephen Stone, a roustabout, was jolted awake by the explosion. “People were running from everywhere to the stairway to get to the next level, where the lifeboats were. But the stairway collapsed in a pile of rubble,” Stone told NEWSWEEK and other reporters. He ran back to his room to get a life jacket and his wedding ring, then groped through the debris of a collapsed ceiling, looking for a way out.
Stone and Williams both survived. Eleven of their mates did not. When the survivors got to shore, the rig operator asked them to sign a paper saying they had not suffered personal injuries. Stone says he refused.