Halliburton’s technical adviser for the cement, Jesse Gagliano, maintained that he warned BP of a potentially severe gas flow problem five days before the 20 April blowout and fire that sunk Transocean’s semi- submersible rig Deepwater Horizon in the Gulf of Mexico.
Gagliano said he also recommended as a result of “channelling effects” from a computer model of the well that 21 centralisers be used in the well.
