From DeSmogBlog -
http://www.desmogblog.com/oil-ticking-time-bombs-gulf-mexico49 weeks have passed since the Deepwater Horizon oil rig exploded and sank into the Gulf of Mexico, resulting in millions of barrels of oil leaking into the Gulf, and yet the same fatal flaws that doomed that rig are still present in most offshore oil rigs in the Gulf of Mexico.
The reason that BP’s Macondo well managed to leak oil into the Gulf was because the blowout preventer on the Deepwater Horizon rig malfunctioned, meaning that the preventer could not blow up and seal off the well. But the Deepwater Horizon is not the only rig that contained a malfunctioning blowout preventer. According to new reports, blowout preventers on rigs throughout the Gulf have not been properly inspected or maintained, meaning that another rig explosion could result in more oil in the Gulf.
Steve LeVine writing for Foreign Policy outlines the problem:
“The oil industry has known for many years that the blowout preventers work in only a fraction of accidents, and that they have been prone to failure, especially as drilling has moved into deeper water, requiring thicker, tougher pipe. In 2004, a study commissioned by federal regulators found that only three of 14 newly built rigs had blowout preventers that could squeeze off and cut the pipe at the water pressure likely to be experienced at the equipment’s maximum water depth.”
Read the full report here -
http://www.desmogblog.com/oil-ticking-time-bombs-gulf-mexico