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Trefoil Geophysical and Geotechnical Seabed Assessment

Activity type Other survey
Activity subtypes
Submitted by Beach Energy (Operations) Limited
Submission date 12 October, 2021
Subtype Revision
Decision date 03 December, 2021
RMS ID 6781
Status Finalised
Outcome Accepted
Link to previously accepted EP
Wayne Mothershaw
Phone: 08 8338 2833
Location map (click to enlarge)
Location map - Activity: Trefoil Geophysical and Geotechnical Seabed Assessment (refer to 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

Other Details
Locations Tasmania
Commonwealth waters adjacent to Tasmania
Titles (or other instruments) T/L1
Current Documents (Finalised)
EP Document

Location map

Previous EP Documents (Under assessment)
EP Document

Location map