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Woodside gears up for decommissioning

Woodside decommissioning

The National Offshore Petroleum Safety and Environmental Management Authority has approved Woodside Energy’s plan to decommission thirty-six historical exploration wells across the North West Shelf.

Thirty of these wells are located 117km northwest of Dampier across several permit areas, while the other six wells are located 170km northwest of Dampier in the Julimar permit area.

Twenty of the wells are currently accepted as permanently abandoned, which means permanent plugs have been installed in the wells to prevent hydrocarbon release into the environment.

The remaining sixteen wells are currently being assessed for their suitability to be accepted as permanently abandoned.

Under Woodside Energy’s environment plan, activities include ongoing management of wells including inspection, maintenance and repair, and removal of wellheads and associated infrastructure for wells accepted as permanently abandoned.

These activities are anticipated to commence later this year, with the removal of wellheads accepted as abandoned.

The inspection, maintenance and repair activities are expected to take up to three days per well. Removal and recovery activities are also expected to take three days per well, however could take up to 10 days per well.

When underway, vessels are expected to operate 24 hours per day for the duration of the activities.

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