Fed Investigator Says BP Cement In Macondo Well Was Unstable
Cement slurry used in the Macondo well was unstable and may have contributed to the April 20 blowout aboard the Deepwater Horizon, according to a report issued Thursday by Fred Bartlit Jr., lead investigator for the National Commission on the BP Deepwater Horizon Oil Spill and Offshore Drilling.
In his report to the presidential-appointed commission, Bartlit said that Houston-based Halliburton and BP both knew from previous tests that the nitrogen-based cement, as planned to be used in the Macondo well, would be unstable.