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Activity - Thylacine Installation and Commissioning

Activity details
Organisation Beach Energy (Operations) Limited
Project Otway Offshore Development (Thylacine and Geographe)
Activity types Significant modification of a facility
In-force EP 7159
Submission date 26 August, 2022
Outcome Accepted
Acceptance date 01 February, 2023
Locations Otway
Start date 06 February, 2023
Stop date 17 May, 2023
Lifecycle Classification Development
Please note: activity start and stop dates are based on notifications provided by the titleholder.

Titleholder contact
Philip Wemyss
Phone: 0883382833

Activity Description
Beach Energy (Operations) Limited (‘Beach’) proposes to undertake subsea installation and commissioning activities at the recently drilled Thylacine North-1, Thylacine North-2, Thylacine West-1 and Thylacine West-2 production wells (the activity) associated with the Otway Offshore Phase 5 Development within petroleum production licence T/L2 and T/L4. The wells will be tied in to the existing Thylacine-A gas production platform.

The activity area is located within the Otway Basin in Commonwealth waters, approximately 65 km southwest of the Victorian coastline at its closest point (Cape Otway) and 70 km south of Port Campbell. The Apollo Australian Marine Park (AMP) is located 50 km east of the activity area. Water depth at the proposed installation location is approximately 100 m.

The scope of this EP includes the installation of rigid spools, manifolds, concrete mattresses, electrohydraulic umbilicals, production flowlines and electrical and hydraulic flying leads. The activity will be undertaken using a construction support vessel. Commissioning of the newly installed equipment will involve testing of the spools, umbilicals and flying leads using monoethylene glycol and water.

The installation and commissioning activity is planned to occur between 1st January 2023 and 31st May 2023 and will take up to 60 days to complete, depending on sea state conditions and technical matters.
Location map (click to enlarge)
Location map - Activity: Thylacine Installation and Commissioning Environment Plan (refer to description)

Accepted EP Documents

EP Document A909545 (23.6 MB)
OPEP Document A892256 (3.02 MB)
OSMP Document A892260 (839 KB)
Additional Documents A903459 (444 KB)
Appendices A909548 (15.4 MB)

Related EP assessments

7159 (Click to view)