Woodside Energy is planning to undertake decommissioning activities within its Angel gas field, located roughly 125km north of Dampier in WA.
Woodside plans to remove redundant Angel subsea infrastructure and three production wells connected to the Angel platform.
The proposed scope of work includes:
- Removal of three 14-inch rigid flowlines between the Angel platform and the AP2, AP3 and AP4 wells
- Removal of three 10-inch rigid tie-in spool pieces
- Removal of three 5-inch flexible electro-hydraulic umbilicals between the Angel platform and the AP2, AP3 and AP4 wells
- Removal of ancillary equipment, such as umbilical termination assemblies and associated foundations, jumpers, stabilisation materials
- Installation of the permanent plugs / caps to preserve fluids within flowlines / umbilicals as close as practicable to the Angel platform
- Removal of three wellheads (AP2, AP3 and AP4) using a construction support vessel or by mobile offshore drilling unit.
If the proposal is accepted by NOPSEMA, Woodside expects the decommissioning activities to take roughly three months.
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