AbstractThe Gorgon Project is an LNG Project under development, located offshore of the Northwest coast of Australia. Gas supplied from offshore gas fields in the Greater Gorgon Area will be used to manufacture LNG at a facility on Barrow Island. Carbon dioxide (CO2) is present in the reservoir fluids of the Greater Gorgon Area Fields, and will be extracted from produced fluids prior to gas liquefaction into LNG. The Gorgon Joint Venture participants plan to geologically dispose of the produced reservoir CO2. The Dupuy Formation, a deep saline formation beneath Barrow Island, has been selected for disposal of Gorgon Project reservoir CO2. Subsurface evaluation of the Dupuy Formation for CO2 disposal has focused on reservoir characterisation and narrowing subsurface uncertainty ranges. A seismic pilot to assess acquisition methods and a comprehensive appraisal well have been used to reduce subsurface uncertainty. A suite of robust subsurface models have been used to gauge the impact of CO2 injection on development decisions. Key objectives for the Gorgon CO2 development include well injectivity, surveillance and containment of injected CO2 within the reservoir. A flexible development plan for CO2 disposal for the Gorgon Project has been developed to meet these objectives.