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Unformatted text preview: ve tests. This would allow for the greater opportunity to detect hydrocarbon influx in a staged test since the first test would have been to the wellhead and the second test would have been to the depth of 8,367 feet. BP’s failure to conduct the first of the two negative tests was a possible contributing cause of the kick detection failure. When the Deepwater Horizon crew resumed pumping the returns overboard at 9:15 p.m., the flow bypassed the Sperry‐Sun meter due to its downstream location off the flow return trough. Consequently flow‐out data could not be adequately monitored by personnel, such as the Sperry‐Sun mudloggers, who were responsible for monitoring these data. The rig crew’s decision to bypass the Sperry‐Sun flow meter while pumping the spacer overboard was a possible contributing cause of the kick detection failure. Well control training historically has not addressed situations, such as conducting a negative test in that one is “inviting” a well control event to occur. Additionally, displacement operations that put the well in an underbalanced condition should be closely monitored throughout displacement operations. The failure of BP’s and...
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