Accordingtojohnguidetransoceanrig

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Unformatted text preview: ipe pressure of 1,610 psi, based on hydrostatic fluid calculations. However, the electronic data indicates that the drill pipe pressure was 2,339 psi. This reading was more than 700 psi higher than it should have been. If the crew saw this information, they should have taken measure to resolve this anomaly because it may have indicated that the spacer remained below the BOP stack (and could have clogged the choke or kill lines). 227 This problem could have been resolved by continuing the displacement (through the choke line) to ensure that all mud and spacer had been removed from the wellbore below the BOP stack. This method of “cleaning up the well” would not have compromised the function of the spacer because most of the spacer was already in the riser above the BOP stack. 228 Smith Report at 7; Deepwater Horizon IADC Daily Drilling Report, April 20, 2010. Smith Report at 8. 225 This first step was different from the first step in the MMS‐approved APM. 226 Id. at 9. 227 Id. 228 Id. at 18‐19. 223 224 92 There is no evidence th...
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