Seven platforms to be decommissioned offshore Canada

Starting in Q2 2020, Oceaneering will perform internal cutting, external cutting, and local soil displacement related to the decommissioning of several platforms in eastern Canada for the Sable Offshore Energy project.

The decommissioning project comprises seven offshore gas platforms located about 200 km east of Halifax, Nova Scotia, Canada on the edge of the Scotian Shelf.

Sable is made up of seven offshore platforms in five different fields with 22 wells and 340 km of subsea pipelines. The fields are Thebaud, North Triumph, Venture, Alma and South Venture. The development is spread over 200 km² near Sable Island.

The platforms were installed between 1999 and 2006 and consist of integrated topside modules on jacket structures in water depths of 25-75 m.

“This opportunity truly highlights our continued ability to leverage the depth and breadth of Oceaneering’s service offerings to the Canadian market,” said Oceaneering International service line manager Terry Humber. “The scope of work takes advantage of Oceaneering’s global experience in internal and external offshore structural cutting as well as soil displacement for access to the structure.”

ExxonMobil is targeting 2020 for the removal of the platforms, with Dutch marine construction company Heerema Marine Contractors using one of its heavy-lift vessels to lift the topsides and jacket components. Heavy deck barges will transport the topsides and jackets to an international demolition yard for recycling and disposal.