WA-404-P Exploration Wellheads
- 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
(pdf 691 KB)
- Progress bar
SubmissionAssessmentFinal decisionEP summary publishedActivity startedActivity stoppedEnd of operation of EP
|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
PERTH WA 6000
Telephone: +61 8 9438 4000
*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.