Tern-2 Well

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Activity name
Tern-2 Well
Activity types
Any other petroleum-related activity
Submitted by
Bonaparte Gas & Oil Pty Ltd (Santos Bonaparte)
Submission date
Submission type
Decision date
Related documents
EP Summary (pdf 907 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 20/02/2019 NOPSEMA decision 22/03/2019 Not applicable
Acceptance of EP 28/02/2019 Titleholder action 10/03/2019 Decision Notification (pdf 9.5 MB)
Submission of EP summary 12/03/2019 NOPSEMA decision 22/03/2019 Not applicable
Publication of EP summary 19/03/2019 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

Santos Limited is the titleholder and operator of the Tern field within permit WA-27-R, in the Bonaparte Basin. The Tern field is approximately 300 km west-southwest of Darwin, and approximately 100 km offshore from the Western Australian coast.


Within the WA-27-R permit, the Tern-2 well has been identified as plugged and temporarily abandoned since the 1980’s, with the wellhead remaining in-situ. The well is being managed in accordance with the Tern-2 Well Operations Management Plan (WOMP). As part of the ongoing management of the well, infrequent remote operated vehicle (ROV) inspections of the subsea equipment will be undertaken from contracted vessels; these surveys will be short in duration (i.e. days).


A survey is expected to occur at least once during the five-year period this EP is in-force. Since the actual timing of the surveys is dependent on a number of factors including vessel availability and weather conditions, this EP has accounted for activities potentially occurring in any season.


No new well activities are planned within the permit area, and no work on the existing well (Tern-2) is planned.

North West
Commonwealth waters adjacent to
Western Australia
Titles (or other instruments)
WA-27-R Opens in new window

Mr Joe Ariyaratnam

General Manager Offshore Development

Bonaparte Gas & Oil Pty Ltd (Santos Bonaparte)

Level 7, 100 St Georges Terrace

PERTH  WA  6000

Telephone: +61 8 6218 7100

Email: joe.ariyaratnam@santos.com


*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.