Enbridge Offshore Facilities in the central Gulf of America will be equipped with a major new deepwater crude oil and natural gas export systems by Allseas.
This export system will be backed by critical subsea infrastructure for transport expansion capacity and future energy production.
Midstream operator, Enbridge, has chosen Allseas' services for the transport and installation of four export pipelines, totalling more than 515 kms, to transport oil and gas from upcoming deepwater developments to existing offshore hubs for onward delivery to market. About 321 kms of 24-inch and 26-inch oil pipeline originating in the deepwater Keathley Canyon area of the Gulf of America will go till the Green Canyon 19 (GC19) platform. About 195 kms of 12-inch gas pipeline originating in the deepwater Keathley Canyon area of the Gulf of America connecting to Enbridge’s Magnolia Gas Gathering System (feeding its Garden Banks network).
Each pipeline will have a 3-km steel catenary riser (SCR) linking to floating production units. Installed in water depths up to 2000 m, the systems will feature multiple crossings, inline structures and termination assemblies to accommodate future tie-ins from nearby discoveries.
The oil export system will connect to the Rome Pipeline – onboard the GC19 platform – scheduled for installation by Allseas in 2028, while the gas gathering system will deliver into the Magnolia Gas Gathering System via the new Sparta Gas Pipeline owned by Enbridge’s joint venture with Shell Pipeline Company LP, which Allseas will install in 2026.
Allseas’ dynamically positioned pipelay vessel Solitaire will perform the offshore campaign between 2027 and 2028. The vessel will utilise her modified double-joint factory (DJF) – a key component of Allseas’ fast S-lay production capability – featuring fully automated welding and inspection systems to achieve precise, consistent and efficient pipelay in deepwater conditions.
Building on Allseas’ innovation in automation and digitalisation, the enhanced DJF integrates advanced pipe handling, tracking, welding and inspection processes to optimise production flow and ensure the highest weld quality standards.
By expanding Enbridge’s deepwater network, the new pipelines will provide essential export capacity to meet the Gulf’s growing production and transport demands.
