The Atwood Osprey

The Atwood Osprey is a moored semi-submersible ultra-deepwater drill ship that was designed by Friede & Goldman ExD Millennium. It was built at the Jurong Shipyards in Singapore for an estimated cost of $625 million, with construction completed in 2011 and delivery made on May 27 of that year.

The sixth generation vessel accommodates 200 workers, has both a length and beam of 244 feet and possesses an operating displacement of 54,840 tons. Its drilling capabilities allows it to work in up to 8,200 feet of water and to drill as deep as 35,000 feet. The ship was the first of six scheduled ships from Atwood, with the last two, the Admiral and Archer, each due within the next few years.

The capacity for drill water is 21,630 barrels and for potable water, that maximum amount is 10,900 barrels. As far as fuel, that capacity is 8,890 barrels.

In March 2015, mooring lines for the ship parted during Cyclone Olwyn, when that storm struck Australia’s northwest coast. That caused the Osprey to drift nearly three nautical miles, causing minor damage and resulting in the ship floating near the flowlines of the Pluto LNG Plant. That caused a brief delay in oil production, though once repairs took place and a support vessel kept the ship in position, the oil once again flowed.

One month later, the delay triggered a termination clause by a Chevron subsidiary, reducing its length by a year. The original deal began when the ship was delivered and was then extended three more years less than 12 months later. While the length of the agreement changed, the previously agreed-upon rates of $470,000 per day remained the same. The Osprey then took over a Woodside Energy drilling contract of its sister rig, the Eagle, for a 165-day period.