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Unformatted text preview: cts, deferral of necessary repairs affecting functionality, and maintenance history affected the BOP’s ability to operate as intended. The forensic examination sought to recreate the pre‐blowout conditions of the BOP stack. Two methods were used to achieve this: (1) working backwards from the current condition of the BOP stack through all of the interventions; and (2) comparing the as‐received condition of the BOP stack with drawings and records reflecting the state of the BOP stack prior to April 20, 2010. DNV’s investigative process was an iterative process that integrated the BOP stack function testing, the collection of evidence, preservation of evidence (especially the drill pipe contained in the wellbores of the BOP and LMRP), examination of materials, damage assessment and video and photo documentation. 3.
The Forensic Examination Technical Working Group During intervention operations, the companies familiar with the Deepwater Horizon BOP stack identified many modifications made to the stack since its original d...
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