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U.S Chemical Safety Board: faulty blowout preventer caused Deepwater Horizon blast, leaves other rigs vulnerable (animation)

Overview_coverx300
The U.S. Chemical Safety Board has found that the Deepwater Horizon explosion was due to a Blowout Preventer that failed due to an unrecognized pipe buckling phenomenon.

In its two-volume draft investigation report that was release yesterday, CSB said, “The blowout preventer (BOP) that was intended to shut off the flow of high-pressure oil and gas from the Macondo well in the Gulf of Mexico during the disaster on the Deepwater Horizon drilling rig on April 20, 2010, failed to seal the well because drill pipe buckled for reasons the offshore drilling industry remains largely unaware of.”

The blowout caused explosions and a fire on the Deepwater Horizon rig, leading to the deaths of 11 personnel onboard and serious injuries to 17 others. Nearly 100 others escaped from the burning rig, which sank two days later, leaving the Macondo well spewing oil and gas into Gulf waters for a total of 87 days. By that time the resulting oil spill was the largest in offshore history. The failure of the BOP directly led to the oil spill and contributed to the severity of the incident on the rig.

The CSB report concluded that the pipe buckling likely occurred during the first minutes of the blowout, as crews desperately sought to regain control of oil and gas surging up from the Macondo well. Although other investigations had previously noted that the Macondo drill pipe was found in a bent or buckled state, this was assumed to have occurred days later, after the blowout was well underway.

Deepwater Horizon Blowout Animation

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CLICK HERE to access Volume 1

CLICK HERE to access Volume 2