Woodside is submitting a 5-year revision of the Pluto Facility Operations Environment Plan in accordance with the Offshore Petroleum and Greenhouse Gas Storage (Environment) Regulations 2023 (Cth). The Pluto platform is located in Commonwealth waters approximately 160 km north-west of Dampier in Western Australia and has been operating since 2012. The facility consists of subsea hydrocarbon gathering systems, a riser platform and an export pipeline.
This Environment Plan is being revised and resubmitted to integrate drilling, subsea installation, commissioning (drilling and tie-back) and production from the Xena reservoir (Xena-03 tie-back) into the existing Pluto production systems. The following activities are proposed to occur within Production Licences WA-1-IL and WA-34-L and Pipeline Licences WA-16-PL and WA-17-PL:
• Routine production and associated activities
• Routine inspection, monitoring, maintenance and repair (IMMR) of the platform and associated subsea infrastructure
• Well clean up and commissioning
• Drill new well in the Xena field
• Subsea infrastructure installation
• Pre-commissioning and commissioning activities.
The Pluto facility will operate 24 hours a day for the 5-year duration of this EP. The Xena-03 drilling and tie-back activities are planned to occur in 2025, with contingency to occur in 2026.
Pluto is an offshore not normally manned (NNM) production platform that produces wet gas and condensate. Gas and condensate is processed on the Pluto platform then transported onshore via an export pipeline to the Pluto LNG plant for processing. The Pluto platform is marked on nautical maps surrounded by a 500 m exclusion zone to shipping.