New Orleans, Louisiana (CNN) -- BP said Sunday that it is "pleased" with how the operation to place a new cap on its ruptured undersea well is proceeding.
Officials hope the containment cap will stop oil from gushing into the Gulf. But while robots replace the old cap, crude is flowing freely.
The procedure -- expected to take four to seven days -- continued to progress Sunday as crews worked to position a transition spool over the gushing well to prepare for the new connection, according to BP's Senior Vice President Kent Wells.
