The Bayu-Undan field is one of Timor-Leste's largest gas fields. Work on the Phase 3C Project commenced in May and concluded in December 2021. McDermott's scope involved a tieback of a single in-field well to existing facilities, re-using existing flexible flowline, with a new umbilical and certain infrastructure.
"McDermott completed the scope within nine months of award," said Mahesh Swaminathan, McDermott's Senior Vice President, Asia Pacific, Subsea & Deepwater. "McDermott's industry-leading health, safety and environmental protocols were effective in mitigating certain risks associated with executing a subsea EPCI scope during the COVID-19 pandemic."
The project is another example of McDermott's growing success in the subsea and deepwater business. A key to the execution was recovery of existing flexible flowlines, flushing to clear hydrocarbons, re-laying and a tieback from a new in-field well to the existing Bayu-Undan facility.
Recovery and reusing existing flexible flowlines was a significant factor in enabling the work to be completed nine months from award and within the project schedule.
Local Timor-Leste businesses were engaged to execute components of the project, including concrete mattress manufacture, marine training and experience onboard the primary installation vessel—the Lay Vessel 108.
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