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Unformatted text preview: specified to Halliburton. 100 The model also assumed seven centralizers rather than the six that actually were used in the Macondo production casing cement job. BP‐HZN‐MBI00128708. BP specified that centralizers would be spaced at varying intervals. See BP‐HZN‐MBI00127389. 99 100 45 While Halliburton modeled the mud as an oil‐based mud with a constant density of 14.17 ppg, the synthetic oil‐based mud actually used in the well was compressible and had a variable density. Halliburton’s cement job design included using base oil with a density of 6.7 ppg. BP actually used the 6.7 ppg density base oil in the final cement job, but Halliburton’s April 18 model assumed that the base oil would have a 6.5 ppg density. In the April 18 model, Halliburton assumed 135° F as the bottom hole circulating temperature, but BP modeling showed that circulating temperature during cementing would be 140° F. The Panel found no evidence that, despite the inconsistencies described above, BP questioned the data in the April 18 model before the blowout. Nor did the Panel find any evidence that BP shared the OptiCem model information with th...
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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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