BP: Macondo sheen likely coming from oil droplets on cofferdam

10/29/2012
BP PLC on Oct. 18 confirmed the integrity of the sealed deepwater Macondo well and its associated relief wells following an extensive subsea survey using a remotely operated vehicle to identify potential sources of a surface sheen near Mississippi Canyon Block 252 off Louisiana. An inspection that took nearly 3 days identified a cofferdam—a piece of containment equipment used during the Deepwater Horizon response—as the probable source of the surface sheen. Transocean Ltd. owned the Deepwater Horizon semisubmersible, which sank after an explosion and fire associated with an Apr. 20, 2010, blowout. Eleven people aboard the semi were killed. The Deepwater Horizon drilled the Macondo well fo...
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