HOUSTON - BP PLC said Tuesday that an underwater survey showed that the well that unleashed the Deepwater Horizon oil spill was intact.
The survey took place as the company and U.S. authorities sought to spot the source of a surface sheen seen near the area. BP and offshore contractor Transocean Ltd, the owner of the doomed Deepwater Horizon rig that exploded and sank in April 2010, inspected the well, the rig's wreckage, and the sea floor surrounding it and confirmed it wasn't leaking.
The company said that while no evidence of oil or gas leakage was found, a white, cloudy substance appeared to emanate from several places on the overturned rig. Samples were gathered, the company said.
The survey, conducted using submarine robots, lasted four days.
The well was capped in July 2010, after nearly three months of gushing oil into the U.S. Gulf of Mexico. The spill followed a blast that destroyed the rig and killed 11.
In September of that year, the well was permanently sealed with cement.
Copyright (c) 2012 Dow Jones & Company, Inc.
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