Gorgon and Jansz-Io Drilling, Completions and Well Maintenance Program

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Activity name
Gorgon and Jansz-Io Drilling, Completions and Well Maintenance Program
Activity types
Drilling, Any other petroleum-related activity
Submitted by
Chevron Australia Pty Ltd
Submission date
Submission type
Decision date
Related documents
EP Summary (pdf 2.7 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 19/07/2018 NOPSEMA decision 20/08/2018 Not applicable
Request for further information 17/08/2018 Titleholder action 07/09/2018 Not applicable
Extension of timeframe 27/09/2018 Titleholder action 12/10/2018 Not applicable
Submission of further information 11/10/2018 NOPSEMA decision 01/11/2018 Not applicable
Request for further information 25/10/2018 Titleholder action 15/11/2018 Not applicable
Submission of further information 06/12/2018 NOPSEMA decision 20/12/2018 Not applicable
Acceptance of EP 19/12/2018 Titleholder action 29/12/2018 Decision notification (pdf 176 KB)
Submission of EP summary 21/12/2018 NOPSEMA decision 31/12/2018 Not applicable
Publication of EP summary 24/12/2018 Not applicable Not applicable
Activity started 01/04/2019 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

Chevron Australia Pty Ltd (CAPL), on behalf of the Gorgon Joint Venturers and Jansz‐ Io Joint Venturers, has developed the Gorgon
Foundation Project (GFP), which comprises the Gorgon and Jansz‐Io gas fields, offshore production wells, and Feed Gas pipeline
infrastructure. The GFP included the construction of a Gas Treatment Plant (GTP) on Barrow Island, and a domestic gas plant. To
maintain gas supply for the GTP, the Gorgon Stage 2 (GS2) Project will expand the subsea gathering network in the Gorgon and
Jansz–Io gas fields.
This Plan includes drilling (and well completions), well intervention, and plug and abandonment activities undertaken by CAPL with
either a Mobile Offshore Drilling Unit (MODU) or vessel within the 500 m safety exclusion zone at well locations within the Gorgon
and Jansz–Io gas fields under production licences WA‐36‐L, WA‐37‐L and WA‐39‐L.

Pilbara, Midwest
Commonwealth waters adjacent to
Western Australia
Titles (or other instruments)
WA-36-L Opens in new window , WA-37-L Opens in new window , WA-39-L Opens in new window

Mr John Connor

Drilling and Completions Manager

Chevron Australia Pty Ltd

QV1, 250 St Georges Terrace

PERTH  WA  6000

Telephone: +61 8 9216 4254

Fax: +61 8 9216 4223

Email: austdrillingops@chevron.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.