WA-404-P Exploration Wellheads

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Activity name
WA-404-P Exploration Wellheads
Activity types
Any other petroleum-related activity
Submitted by
Woodside Energy Ltd
Submission date
Submission type
Operation of EP ended
Decision date
Related documents
EP Summary (pdf 691 KB)

Location map (click to enlarge)
Progress bar
Final decision
EP summary published
Activity started
Activity stopped
End of operation of EP
Activity events
Event Event date Next event* Next event due* Related documents
Submission of new EP 31/05/2018 NOPSEMA decision 02/07/2018 Not applicable
Request for further information 25/06/2018 Titleholder action 09/07/2018 Not applicable
Submission of further information 03/07/2018 NOPSEMA decision 17/07/2018 Not applicable
Acceptance of EP 04/07/2018 Titleholder action 14/07/2018 Decision notification (pdf 9.5 MB)
Submission of EP summary 13/07/2018 NOPSEMA decision 23/07/2018 Not applicable
Publication of EP summary 16/07/2018 Not applicable Not applicable
End of operation of EP notification accepted 02/04/2019 Not applicable Not applicable

* The next event is based on NOPSEMA’s understanding and expectation of what may occur next in the assessment process. There are a number of other events that may occur, and events may happen sooner or later than expected. All events will be published in this table as and when they take place.

Activity description

Woodside is preparing an Environment Plan for the Martin-1, Remy-1, Kelt-1 and Noblige-2 wellheads, located in Commonwealth waters within permit area WA-404-P, approximately 260 km north-west of Dampier in Western Australia. The wellheads are located in water depths between 1,250-1,450 m. The four wells are completely plugged and abandoned with wellheads remaining in place.

Martin-1 exploration well was drilled in December 2010. After drilling, Martin-1 was permanently plugged with a series of cement plugs. The wellhead remains in place. Drilling of the Remy-1 exploration well commenced in October 2010. When the well casing became stuck, and was unable to be removed, the well was capped. The wellhead also remains in place.

The Kelt-1 exploration well and the Noblige-2 appraisal well were drilled in July 2011 and August 2011 respectively. Both wellheads were attempted to be removed after drilling by cutting the casing below the seabed from within the drill pipe. Due to unsuccessful casing cutting attempts, the wellheads were unable to be removed.

As a result of an options assessment which was conducted for the decommissioning of these wellheads, which included consideration of the stakeholder feedback received on the decommissioning options, Woodside has left and proposes to continue to leave the Martin-1, Remy-1, Kelt-1 and Noblige-2 wellheads in-situ permanently.

No field activities are required in association with this Environment Plan.

North West
Commonwealth waters adjacent to
Western Australia
Titles (or other instruments)
WA-404-P Opens in new window

Ms Erin Chen-Wilson

Corporate Affairs Adviser

11 Mount Street


Telephone: +61 8 9438 4000

Email: Feedback@woodside.com.au


*Where an environment plan was submitted or accepted prior to 28 February 2014 certain information is not published, in accordance with the Environment Regulations in place at that time. For accepted EPs, refer to the attached EP Summary for additional information.