BP confirmed that well kill operations on the MC252 well in the Gulf of Mexico are now complete, with both the casing and annulus of the well sealed by cement.
The MC252 well has been shut-in since July 15 and cementing operations in August, following the static kill, provided an effective cement plug in the well’s casing. The relief well drilled by the DDIII drilling rig intercepted the annulus of the MC252 well on September 15, followed by pumping of cement into the annulus on September 17. BP, the federal government scientific team and the National Incident Commander have now concluded that these operations have also successfully sealed the annulus of the MC252 well.
"This is a significant milestone in the response to the Deepwater Horizon tragedy and is the final step in a complex and unprecedented subsea operation - finally confirming that this well no longer presents a threat to the Gulf of Mexico," said Tony Hayward, BP group chief executive. "However, there is still more to be done. BP’s commitment to complete our work and restore the damage done to the Gulf of Mexico, the Gulf coast and the livelihoods of the people across the region remains unchanged."
BP will now proceed to complete the abandonment of the MC252 well, which includes removing portions of the casing and setting cement plugs. A similar plugging and abandonment of both relief wells will occur as well.
BP will also now begin the process of dismantling and recovering containment equipment and decontaminating vessels that were in position at the wellsite.