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Activity - Trefoil Geophysical and Geotechnical Seabed Assessment

Activity details
Organisation Beach Energy (Operations) Limited
Activity types Other survey
In-force EP 6781
Submission date 12 October, 2021
Outcome Accepted
Acceptance date 03 December, 2021
Locations Tasmania
Start date 02 April, 2022
Stop date 11 April, 2022
Please note: activity start and stop dates are based on notifications provided by the titleholder.

Titleholder contact
Wayne Mothershaw
Phone: 08 8338 2833

Activity Description
Beach Energy (Operations) Limited (Beach), proposes to undertake geophysical and geotechnical surveys within the Trefoil (T/RL2) and Yolla (T/L1) permits and along a future pipeline route in Commonwealth water open acreage, Bass Strait. These locations are approximately 126 km from Wonthaggi, Victoria and 94 km from Stanley, Tasmania. The surveys are required to assess seabed properties for potential development of the Trefoil gas field.

This Environment Plan allows for surveys to be undertaken either separately or together any time between December 2021 and 31 December 2023. Exact timing is contingent on the availability of suitable vessels, weather and the receipt of required environmental approvals.

The geophysical survey could take up to 25 days to complete and includes:
• multibeam echo sounder
• side-scan sonar
• sub-bottom profiler
• magnetometer

The geotechnical survey could take up to 30 days to complete and includes:
• borehole sampling
• core sampling
• piezo cone penetrometer test
• visual observations by drop/towed camera
Location map (click to enlarge)
Location map - Activity: Trefoil Geophysical and Geotechnical Seabed Assessment (refer to description)

Accepted EP Documents

EP Document A815062 (13.8 MB)