Corvus-2 Appraisal Drilling

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Activity name
Corvus-2 Appraisal Drilling
Activity types
Submitted by
Santos Northwest Pty Ltd (previously Quadrant Northwest Pty Ltd)
Submission date
Submission type
Decision date
Related documents
EP Summary (pdf 1 MB)

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 09/11/2018 NOPSEMA decision 10/12/2018 Not applicable
Unable to make a decision within 30 days – request for further information 10/12/2018 Titleholder action 09/01/2019 Not applicable
Submission of further information 24/12/2018 NOPSEMA decision 23/01/2019 Not applicable
Acceptance of EP 21/01/2019 Titleholder action 31/01/2019 Decision notification (pdf 167 KB)
Submission of EP summary 29/01/2019 NOPSEMA decision 08/02/2019 Not applicable
Publication of EP summary 04/02/2019 Not applicable Not applicable
Activity started 05/03/2019 Not applicable Not applicable
Activity stopped 26/04/2019 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

Santos Northwest Pty Ltd (Santos) proposes to drill the Corvus-2 appraisal well, located in Commonwealth waters of approximately 65 m depth off the coast of Western Australia (WA).

The drilling campaign (the activity) will be carried out using a jack-up mobile offshore drilling unit (MODU). This environment plan (EP) covers all MODU, support vessel and helicopter operations within the operational area

All petroleum activities will be conducted in Permit Area WA-45-R. The operational area is set as a 500 m radius around the final well location, corresponding to the gazetted safety exclusion zone around the MODU. The Corvus-2 appraisal well is proposed to be drilled, evaluated and permanently plugged and abandoned.

Drilling activities are planned for approximately 42 days, but the environmental assessment and stakeholder consultation accounts for over-run (~80 days). Activities will be conducted 24-hours per day, seven days per week. Over-runs may be caused by unfavourable weather, additional drilling (e.g. a re-spud) or operational challenges.

The earliest date for MODU arrival is 1st March 2019. To account for potential delays or schedule changes, the environmental assessment encompasses petroleum activities at any time of the year. Thus the activity will be undertaken between 1st March 2019 and 31st December 2019.

North West
Commonwealth waters adjacent to
Western Australia
Titles (or other instruments)
WA-45-R Opens in new window

Mr Jason Young

General Manager - Drilling and Completions

Level 7, 100 St Georges Terrace

PERTH  WA  6000

Telephone: +61 8 6218 7100



*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.