
The Wheatstone platform is the largest offshore gas-processing platform ever installed in Australia, with a topside weight of about 37,000 metric tons, and the largest float-over installation Chevron has ever delivered globally.
https://www.chevronaustralia.com/docs/default-source/default-document-library/wheatstone-project-upstream.pdf?sfvrsn=0Situated in 70m of water, the platform is 225m tall from the
base of the SGS to the top of the flare tower and designed to
withstand 12 storey-high cyclonic waves.
The platform topsides have a total deck area of 20,000 square
metres and include:
• inlet facilities to receive the incoming gas and condensate production
• separation and cooling equipment to separate the gas from the liquids (condensate and water)
• compression facilities to bring the gas to the required export pressure
• dehydration equipment to dry the gas and de-water the condensate for transport to shore
• export facilities to tie-in the export trunkline transporting gas to the Ashburton North plant site.
To support the processing facilities, the platform also includes:
• living quarters to house up to 100 people
• waste treatment facilities
• power generation system with a total generation capacity of 27 mega watts
• safety control systems.
Once operational, the platform will process 2 billion cubic feet of
gas per day (Bcfd), enough for every household and commercial
user in Australia, excluding industrial use.
https://www.chevronaustralia.com/docs/default-source/default-document-library/fact-sheet-wheatstone-project-downstream.pdf?sfvrsn=10The foundation project will consist of two liquefied natural gas
(LNG) trains with a combined capacity of 8.9 million tonnes per
annum (MTPA), plus a 200 terajoule per day domestic gas plant.
The project has approval to produce up to 25 MTPA of LNG.