But Maria Celina Rodrigues, the Brazilian consul in Paris, said the depth of the ocean would make it difficult for searchers.

BBC: Atlantic searched for lost plane

He also holds the world-record depth for a solo ocean dive in a submersible, at 3, 000 feet--"People think it's interesting there, but you're just sitting, " he says.

FORBES: Cruising Altitude: Minus 400 Feet

The rig was aground in an area of Ocean Bay, where water depth is 32 feet to 48 feet.

CNN: STORY HIGHLIGHTS