BP ultimately used a capping stack to stop the spill July 15 after several other methods failed.
Turlak's team was working on a strategy that was called “BOP-on-BOP” because it lowered a second blowout preventer on top of the rig's failed one. He called it the “obvious solution” and said it was ready for installation in early June.
But BP concluded it wasn't a viable option because it could have made the situation worse and hampered other strategies if it failed. BP said the capping stack that later sealed the well was specifically designed to land on the well system above the blowout preventer.
BP employed the “top kill” method in May 2010, but it didn't stop the flow of oil.
The trial's second phase opened Monday with claims that BP ignored decades of warnings about the risks of a deep-water blowout and withheld crucial information about the size of the spill. Plaintiffs' lawyers claim BP knew the “top kill” strategy was doomed based on higher flow rate estimates that the company didn't share with federal officials at the time.