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Unformatted text preview: Deepwater Horizon crew ran the production casing string into the well. 31 BP’s engineering team had engaged in significant debate over the appropriate design of the casing to run in the final well section. There was additional debate among BP personnel about the number of centralizers, which are pieces of equipment used to keep the casing centered in the well, to use on the final casing string. The crew pumped cement into the annulus and into the shoe track, the section of the casing between the bottom of the well and the float valve installed in the well (a large valve designed to allow fluids to flow down the well while preventing fluids from flowing back up the wellbore during cementing operations). The purpose of the cement job was to establish an isolation barrier across the hydrocarbon zone at the bottom of the well so that hydrocarbons could not enter the well. In the late hours of April 19 and into the morning of April 20, the rig crew and BP’s cement contractor, Halliburton, pumped cement into the Macondo well to isolate the hydrocarbon zones. 32 Based on data provid...
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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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