A House energy panel investigation has found that the blowout preventer that failed to stop a huge oil spill http://www.washingtonpost.com/wp-dyn/content/article/2010 ...
These steel monsters known as blowout preventers or BOPs _ sometimes as big as a double-decker bus and weighing up to 640,000 pounds _ guard the mouth of wells. They act as the last defense to choke ...
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