Manufacturing, Installation Advances for Subsea Tieback System

July 2019

Significant progress for Liza Phase 1 has been made offshore in the past three months while maintaining a strong focus on SSHE principles. Demonstrating a commitment to the Nobody Gets Hurt vision, offshore installation activities have reached one million hours worked by the offshore installation teams without a lost time incident (LTI), even as activities have ramped up.

The Saipem FDS2 pipe lay vessel has mobilized and, on April, 5 lowered the very first pipe to the seabed in Guyana. Since then, the FDS2 has completed the installation of all major subsea structures—including two production and three injection manifolds, the manifold and pipeline end termination (PLET) suction piles, and four subsea distribution units (SDUs).

It has also completed the installation of both water injection flowlines and all three production flowlines. The vessel will continue with installation of remaining flowlines and the risers. Learn more about the offshore pipelay process in this video.

Buoyancy module manufacturing is now complete, and all these modules have been received in Guyana for transit offshore. The infield umbilicals arrived in Trinidad on June 9 via the Saipem transport vessel. The walking mitigation structures, which will help improve the stability of the flowlines, are also now complete; they are scheduled for load-out early in the third quarter.

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