Strohm delivers composite riser for Shell North Sea retrofit

Strohm has supplied a static thermoplastic composite pipe riser to support operations at one of Shell’s facilities in the southern North Sea.
Related To: 
June 28, 2022
Courtesy Subsea Energy Solutions
Strohm’s TCP flowline features Subsea Energy Solutions’ bend restrictor, topside clamps and subduct for a fast turnaround project with Shell.
Strohm’s TCP flowline features Subsea Energy Solutions’ bend restrictor, topside clamps and subduct for a fast turnaround project with Shell.

Offshore staff

IJMUIDEN, the Netherlands — Strohm has supplied a static thermoplastic composite pipe (TCP) riser to support operations at one of Shell’s facilities in the southern North Sea.

The company provided a fast-track delivery earlier this year on a subsea pallet of its 2-inch 10-ksi product to support Shell’s tight schedule.

In this case, the TCP was terminated above the J-tube, allowing for a smaller existing J-tube to be used and avoiding the need for welding or curing. The full scope of supply included the J-tube bellmouth, centralizer, bend restrictors and hang-off clamps.

Strohm’s TCP is a corrosion-resistant composite pipe solution with a long service life. It is also spoolable and delivered in long lengths, which allows operators to use their field support vessels on long-term charter for installations rather than having to bring in dedicated pipelay ships.

DNV’s study of the CO2 footprint related to manufacture and installation of a TCP flowline found a 50+% reduction compared to a steel alternative, Strohm said.

The company is assessing the impact of the non-corrosive nature of TCP on service life, with the design said to negate the need for any injection of chemicals related to inspection and pigging.

06.28.2022

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