Offshore/subsea systems

Subsea7 Scoops Trion Installation Work

The US contractor will provide subsea installation services with work expected to begin in 2026.

Woodside continues to award new contracts related to its Trion development in the deepwater Gulf of Mexico after taking FID on the project last June.
SOURCE: Subsea7

Woodside Energy tapped Subsea7 to provide subsea installation services for the $7.2 billion Trion development in the deepwater Mexican Gulf. The field is located approximately 30 km south of the US–Mexico maritime border and 180 km away from the Mexican coastline, at a water depth of 2600 m.

Subsea7 described the contract award as “large,” which it defines as having a value between $300 and $500 million.

The project, which Woodside and Pemex are developing in partnership, involves a wet tree subsea system connected to an infield floating production unit (FPU). Subsea7 will be responsible for the engineering, construction, and installation of the subsea umbilicals, risers, and flowlines, as well as the associated subsea architecture.

Twenty-four subsea wells will be tied back to the FPU, which will be capable of producing 100,000 B/D of oil and hooked to an floating storage and offloading (FSO) vessel capable of storing 950,000 bbl of oil. Produced crude oil will be shipped to international markets, while unused associated natural gas will be delivered domestically via a subsea pipeline. Offshore activities are expected to take place between 2026 and 2027.

“This award acknowledges our strong partnership with Woodside globally,” said Craig Broussard, vice president for Subsea7 Gulf of Mexico. “With our experience in the Gulf of Mexico and proven track record, we can deliver innovative, reliable, fast-tracked solutions that create value for our clients. We are proud to be a part of Woodside and Pemex’s first deepwater development in Mexico.”

Last month, Woodside awarded Dril-Quip a contract to supply the subsea wellhead systems for Trion. Last August, the operator tapped Hyundai Heavy Industries to build the FPU. Other contractors with roles in the development include SBM Offshore (FPU installation), Transocean (drilling), OneSubsea (subsea trees), and TechnipFMC (flexible risers).

First oil from the Trion development is expected in 2028.