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Unformatted text preview: the blowout, BP contracted Stress Engineering to conduct a post‐incident analysis on float collars similar to that used on the Macondo well. 121 Stress Engineering’s report concluded that the well “experienced a blockage that prevented the float collar from converting during steady state flow.” 122 Data analyzed by Stress Engineering supported the likelihood that a blockage was present from as early as when the diverter was closed using the Allamon ball, up through BP’s final attempt to convert the float collar. 123 Stress Engineering could not determine whether the blockage occurred at the float collar or at the reamer shoe. 124 Nathaniel Chaisson testimony at 432‐433. BP‐HZN‐MBI00021271. 121 Horizon Incident Float Collar Study‐Analysis, Stress Engineering Services, November 22, 2010 (BP‐HZN‐MBI00262898). 122 Id. 123 Id. 124 The float collar and the reamer shoe were the two likely locations for blockage because they each have flow‐directed ports that can become blocked with lost circulation material or other de...
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This note was uploaded on 01/18/2014 for the course BEPP 305 taught by Professor Nini during the Fall '11 term at UPenn.

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