Woodside Energy is currently executing a number of decommissioning projects offshore Australia, and in its Q1 2025 report, outlined progress in the quarter.
The company concluded the multi-year decommissioning programme at Enfield, offshore Australia, safely and successfully completing the removal of all facilities, with the recovery of final infrastructure in February. Only survey activities remain. It commenced deconstruction of the Griffin Riser Turret Mooring at the Australian Marine Complex in preparation for recycling and reuse, and continued decommissioning activities at Bass Strait, completing the plug and abandonment activities for 27 wells, including on the Bream B platform. Plug and abandonment activities commenced on the Kingfish A and Cobia platforms.
Subsequent to the quarter, Woodside concluded the 10-well Stybarrow plug and abandonment campaign, took delivery of a mobile offshore drilling unit at the Minerva field, offshore Victoria, and commenced preparations to plug and abandon the first of three Minerva wells.
Woodside is now planning to undertake subsea and well infrastructure removal decommissioning activities within the Angel Field.
In line with requirements under the Environment regulation, the company has submitted an Environment Plan to National Offshore Petroleum Safety and Environmental Management Authority (NOPSEMA) which is currently under assessment, covering removal of redundant subsea infrastructure in the Angel Field.
The Angel subsea and well infrastructure is located around the Angel production platform in Commonwealth waters, approximately 125 km north of Dampier. The subsea infrastructure is in water depths between approximately 77 m and 85 m. Woodside plans to remove redundant Angel subsea infrastructure and three production wells connected to the Angel platform. Subsea infrastructure removal activities are currently planned to commence by 1 December 2026 subject to approvals and vessel availability. Subsea decommissioning activities are currently scheduled for around three months between around Q3 2026 and Q1 2027.
On its website, Woodside underlines its commitment to executing decommissioning activities with a focus on safety and the environment, coupled with efficiency. “Decommissioning is integrated into project planning and operations, from the early stages of development through to the end of field life. This includes conducting assessments to inform our planning and decision making, which is underpinned by science and marine research. In the developing regulatory environment, we continue to listen, learn and respond to our stakeholders, while expanding our global decommissioning experience,” the company says.
Woodside’s decommissioning approach recognises the importance of reusing and recycling material from its decommissioning activities where possible. Its waste mitigation hierarchy prioritises reduction, reuse, recycling, and treatment over disposal.
