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Activity - Browse Commonwealth Wellhead Decommissioning

Activity details
Organisation Woodside Browse Pty Ltd
Activity types Any other petroleum-related activity
In-force EP 7064
Submission date 24 June, 2022
Outcome Accepted
Acceptance date 15 September, 2022
Locations North West
Start date Pending titleholder notification
Stop date Pending titleholder notification
Lifecycle Classification Decommissioning
Please note: activity start and stop dates are based on notifications provided by the titleholder.

Titleholder contact
Shannen Wilkinson
Phone: 08 9348 4000

Activity Description
Woodside is planning to decommission three exploration wells. The wells are located in permits WA-32-R and WA-28-R around 380 km north of Broome, at water depths of between approximately 501 m and 677 m. The wellheads and associated
infrastructure are proposed to be left in situ.

A Decommissioning Options Assessment was performed for the wellheads which compared removal of infrastructure to leaving it in situ. The assessment found that the leave in situ decommissioning option was preferred as it meets legislative requirements, is technically feasible, has no health and safety risks, and provides equal environmental impacts and lower risks when compared to removal compared. Impacts associated with the ongoing presence of the wellhead include long-term degradation of the wellhead material and potential displacement or interactions with future trawl fishers. These impacts and risks have been demonstrated as ALARP and acceptable in the EP.

The petroleum Activities Program will end four months after acceptance of this EP by NOPSEMA and the expected duration of the activity will
be zero days.
Location map (click to enlarge)
Location map - Activity: Browse Commonwealth Wellhead Decommissioning (refer to description)

Accepted EP Documents

EP Document A872842 (11.7 MB)
NOPSEMA Report A876163 (138 KB)

Related EP assessments

7064 (Click to view)