Bonaparte CCS

Inpex Browse E&P, together with TotalEnergies CCS Australia and Woodside Energy, is developing the Bonaparte Carbon Capture and Storage (CCS) Project in the G-7-AP permit area, located ~260 km offshore west of Darwin in the Petrel Sub-basin (Bonaparte Basin). Initiated in 2022, appraisal activities including 3D seismic and two wells have confirmed a high-quality saline aquifer with thick caprock suitable for long-term CO₂ storage. The project is targeting storage over a ~30-year period, with total capacity of up to ~300 million tonnes and annual injection capacity of up to ~10 mtpa (initial phase ~8 mtpa). The project entered pre-FEED in April 2025 and has been granted Major Project Status by the Australian government—the first offshore CCS project to receive this designation. Key regulatory steps underway include Declaration of an Identified GHG Storage Formation and securing a GHG injection license, with first injection targeted around 2030. CO₂ will be sourced from industrial emitters in northern Australia and the broader Asia-Pacific region. Infrastructure includes an onshore inlet station at Middle Arm (Darwin) to receive, condition, and meter CO₂, connected via a ~260 km, up to 22-inch offshore pipeline to the storage site. The offshore system includes up to six injection wells (four planned plus two contingency), a subsea manifold, infield pipelines, and associated subsea infrastructure. Subsea power and fiber optic cables will support operations, with redundancy provisions. The project is being developed in phases to scale capacity from ~8 mtpa to ~10 mtpa.