BPTT lets contract for Cassia compression project

BP Trinidad & Tobago LLC (BPTT) has let a contract to McDermott International Inc. for the engineering, procurement, and construction of the Cassia compression platform, 57 km southeast offshore Trinidad and Tobago.

BP Trinidad & Tobago LLC (BPTT) has let a contract to McDermott International Inc. for the engineering, procurement, and construction of the Cassia compression platform, 57 km southeast offshore Trinidad and Tobago.

McDermott will provide EPC, hook-up, and commissioning of the 8,100-tonne Cassia C topsides, a 3,400-tonne jacket, and a 720-tonne bridge to link Cassia C with the existing Cassia B platform that currently sits in 68 m of water.

The scope also includes brownfield modifications at Cassia B. The compression platform will be fabricated and constructed at McDermott's fabrication facility in Altamira, Mexico. Trinidad Offshore Fabrication Co. will fabricate the jacket and the bridge landing frame.

Engineering services will be provided by McDermott’s offices in Houston, Chennai, and Dubai, with the project management team and procurement being performed from Houston.

The EPC contract follows the completion of a detailed engineering and long lead procurement services contract McDermott completed for Cassia C, as well as the completion of the EPC, installation, and commissioning contract of the Angelin project for BPTT (OGJ Online, June 7, 2017).

Cassia C is BPTT’s third Cassia platform, handling gas from its operations in the Columbus basin (OGJ Online, Aug. 14, 2017). Cassia C will receive 1.2 bscfd of hydrocarbon gas through new piping from Cassia B across the bridge. The gas will be compressed in three gas turbine driven compressors and returned to Cassia B for export. Liquids from Cassia C and Cassia B will be combined and boosted for export.

The contract was awarded in two phases, with an initial booking in fourth-quarter 2018 for early engineering and procurement work. The remainder of the award will be reflected in McDermott's first-quarter 2019 backlog.

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