![]() ![]() "Every industry expert the investigative team met with dismissed the so-called bladder effect as a fiction that could not have accounted for the pressure readings the men saw on April 20."Īn oil slick on the outside edge of the protective barrier formed by the Chandeleur Islands in the wake of the BP Deepwater Horizon platform disaster off Louisiana in 2010. "If anyone had consulted him or any other shore-based engineer, the blowout might never have happened," Bartlit's report said. The report by the commission's lead counsel, Fred Bartlit, zeroed in on the failure of the cement well casing put in by Halliburton and a key negative pressure test just before the blowout that should have warned BP supervisors of a problem.īut investigators found that "well site leaders accepted facially implausible explanations for the negative test results."Įven after the blowout of the Macondo well, a BP official attributed it to "a bladder effect," rather than failed cement, surprising BP's vice president for drilling and completions, who was on the rig during the test. ![]() Those and other details were disclosed in a report wrapping up an investigation by a presidential commission that blamed the Apdisaster on management failures by BP, Halliburton and Transocean.Ī massive explosion on the BP-leased Deepwater Horizon rig killed 11 workers, sank the rig and sent millions of barrels of oil flowing into the Gulf over a three month period, wreaking havoc on the region's environment and economy.
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