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Industry, regulators should take 'system safety' approach to offshore drilling in aftermath of Deepwater Horizon accident, says new report
Date:12/14/2011

out were missed by management and crew, resulting in a failure to take action in a timely manner. And despite numerous past warnings of potential failures of blowout preventer (BOP) systems, both industry and regulators had a "misplaced trust" in the ability of these systems to act as fail-safe mechanisms in the event of a well blowout.

BOP systems commonly in use -- including the system used by the Deepwater Horizon -- are neither designed nor tested to operate in the dynamic conditions that occurred during the accident. BOP systems should be redesigned, rigorously tested, and maintained to operate reliably, the report says. Proper training in the use of these systems in the event of an emergency is also essential. And while BOP systems are being improved, industry should ensure timely access to demonstrated capping and containment systems that can be rapidly deployed during a future blowout.

Operating companies should have ultimate responsibility and accountability for well integrity, the report says, because only they possess the ability to view all aspects of well design and operation. The drilling contractor should be held responsible and accountable for the operation and safety of the offshore equipment. Both industry and regulators should significantly expand the formal education and training of personnel engaged in offshore drilling to ensure that they can properly implement system safety. Guidelines should be established so that well designs incorporate protection against the various credible risks associated with the drilling and abandonment process. In addition, cemented and mechanical barriers designed to contain the flow of hydrocarbons in wells should be tested to make sure they are effective, and those tests should be subject to independent, near real-time review by a competent authority.

The U.S. Department of the Interior's recent establishment of a Safety and Environmental Management Systems (SEMS) program --
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Contact: Molly Galvin
news@nas.edu
202-334-2138
National Academy of Sciences
Source:Eurekalert

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