Green light for wellhead removal ops at Australian oil field
What happened
NOPSEMA accepted Jadestone’s environment plan to remove three Montara wellheads offshore Australia. The plan uses a single vessel with ROV activity and allows roughly two days of work per wellhead with an overall mobilisation allowance; dismantling and disposal are to be completed ashore within a year of arrival. Treat this as an actionable mobilisation request: confirm vessel arrival, ROV survey gates and port disposal windows next
Buyer takeaway
This is a confirmed, site‑specific demand signal; book vessels and confirm ROV availability now because the EP approval makes the work calendar real
Cost / money
Concentrated single‑vessel plans reduce flexibility and can increase per‑unit mobilization costs if bookings slip or disposal windows are constrained
Supplier / commercial
Suppliers with a booked vessel/ROV gain leverage to shorten quote validity and add mobilisation surcharges tied to firm arrival dates
Safety / operations
Compressed activity per wellhead heightens the need for pre‑defined handover gates and verified 'as‑left' survey acceptance to avoid rushed HSE compromises
What to watch
Watch vessel arrival and port disposal bookings for slips and any conditional mobilization clauses from suppliers
Key facts
- Three Montara wellheads targeted for removal
- Work at each wellhead expected to be ~2 days with an allowance for mobilisation and demobilis
- Single vessel required with deck recovery capacity; onshore dismantling/disposal scheduled wi
Source excerpts
One vessel is required to complete this activity with the capacity to recover the subsea infrastructure to the deck
The EP underlines that the wellhead removal will be subject to the availability of a suitable vessel, and whenever feasible, will be a vessel of opportunity mobilizing to the Montara field for other activities
The dismantling and disposal of the wellheads is anticipated to be completed within 12 months of arrival at the receiving port and waste management facility
