Page 36: of Offshore Engineer Magazine (May/Jun 2024)

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FEATURE SUBSEA TIEBACKS is supplying subsea trees and control systems to ensure ef- fcient production.

TechnipFMC’s latest subsea trees are designed to handle high-pressure, high-temperature environments, critical for the challenging conditions in the North Sea, while Subsea 7’s fexible fowlines, installed in early 2024, are optimized for long-distance tiebacks and capable of handling multi- phase fow, ensuring reliable hydrocarbon transportation to the FPSO.

In West Africa, BP’s developing the Greater Tortue Ah- meyim (GTA) project involves a 120-km subsea tieback to a nearshore LNG facility. Scheduled to deliver frst gas by late 2024, this project is pivotal for gas export and energy supply in the region. TechnipFMC is providing subsea production systems and fexible fowlines, while OneSub- sea has been hired to provide subsea boosting systems and control umbilicals.

TechnipFMC’s fexible fowlines and production sys- tems, installed in mid-2023, are designed to handle large volumes of gas over extended distances. These systems are critical for the project's effciency and were chosen for their reliability in deepwater conditions. SLB’s One-

Subsea division provided boosting systems and control umbilicals in early 2024, ensuring effective gas transport and system integrity.

In Asia Pacifc, the Ichthys LNG project, operated by

INPEX, is undergoing a signifcant expansion with new subsea tiebacks planned for 2024 and 2025. This expan- sion aims to increase the LNG production capacity by ty- ing back new gas wells to existing subsea infrastructure.

Subsea 7 is managing the EPCI of the subsea systems and pipelines, while Aker Solutions is providing subsea production systems and control equipment.

Subsea 7’s involvement includes the installation of ad- vanced fowlines capable of handling high-pressure gas transport. These systems were put in place in early 2024 and are designed to minimize hydrate formation and maxi- mize production effciency. Aker Solutions’ subsea produc- tion systems, installed in mid-2023, feature integrated promising to deliver cost-effective and sustainable solu- control systems that enhance operational effciency and tions, with most notable steps being made in subsea pro- cessing systems, enhanced fow assurance technologies, reduce downtime.

subsea robotics as well as digital technologies.

Subsea processing systems are transforming subsea tie-

Supply Chain and backs by allowing hydrocarbon processing directly on the

Technological Advances seabed. Notable advancements include subsea separators,

Technological advancements in the subsea tiebacks pumps, and compressors, like the ones supplied by One- area of oil and gas developments are also picking up pace, Subsea for Shell's Whale feld and BP's GTA projects, 36 OFFSHORE ENGINEER OEDIGITAL.COM