McDermott Wins Subsea Tieback Work for Stonefly

McDermott International announced Monday it has secured a contract from LLOG Exploration Company to install the subsea infrastructure to support a two well subsea tieback from the Stonefly development site to the Ram Powell platform approximately 140 miles southeast of New Orleans in the Gulf of Mexico.

McDermott said its work scope includes project management, installation engineering, subsea structure and spoolbase stalk fabrication, and subsea installation of the subsea infrastructure to support a two well subsea tieback from the Stonefly development site to the Ram Powell platform via a 60,000 foot 6-inch pipeline at water depths ranging from 3,300 to 4,100 feet. McDermott said it will also design, fabricate and install a steel catenary riser, a pipeline end manifold and two in-line sleds.

The Ram Powell tension leg platform is located in 3,200 feet of water in Viosca Knoll Area, Block 956, and is capable of processing 60,000 barrels of oil per day and 200 million cubic feet of gas per day.

The Stonefly development includes the Viosca Knoll 999 area where McDermott is scheduled to use its 50-acre spoolbase in Gulfport, Miss., for fabrication and reeled solutions. McDermott is scheduled to install the subsea tiebacks and structures using its North Ocean 105 vessel in the third quarter of 2019. Structure design and installation engineering began in January 2019 in McDermott’s Houston office.

McDermott did not reveal the exact value of the contract, but said it is worth between $1 million and $50 million. The lump sum contract award will be reflected in the company’s first quarter 2019 backlog.