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Prelude FLNG PLET and PLR

Civmec was awarded a contract for the supply, fabrication, assembly, testing and delivery of eight 12” Pipeline End Terminations (PLET) and eight Pig Launchers and Receivers (PLR) totalling approximately 400 tonnes for the Shell Prelude Floating Liquefied Natural Gas (FLNG) Project.

This included Factory Acceptance Testing (FAT), System Integrity Testing (SIT), trial lifts, storage and delivery FAS at the Australian Marine Complex. The 12” pipe for the PLET and PLR flow line consisted of Corrosion Resistant Alloy (CRA) and duplex (2205) for the 2” PLR piping manifold.

As the PLET was designed with a rotating yoke, folding wings and a sliding mechanism, the fabrication and assembly sequencing was continually reviewed to ensure that the assembly of sub-components remained flawless throughout the fabrication process.

We responded to an accelerated program request by the client in order to meet offshore delivery to the field, completing the project on time and LTI free.

Prelude is a gas condensate accumulation around 475km north-northeast of Broome, discovered by Shell in 2007. To develop the field, Shell is constructing its first FLNG facility. The water depth at the Prelude location is approximately 250m. Once complete, the Prelude FLNG expects to produce 3.6 million tonnes per annum (mtpa) of LNG, 1.3 mtpa of condensate and .4 mtpa of LPG for export.

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