Philippe Guys, Total’s UK managing director, told media he hoped the kill operation could be completed before the start of May.

A dynamic kill would involve pumping drilling mud at high-pressure from a semi-submersible rig into the leaking G4 well.

However, Total is also readying the jack-up Rowan Gorilla V and semi-submersible Sedco 714 to drill two relief wells in the event the kill option does not work, an option that would take several months.

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