Australia Cygnus Vulcan Sub-Basin 3D

New Blocks on offer in the 2017 Acreage Release

Polarcus is pleased to announce the availability of newly open acreage, released as part of the Australian Government 2017 acreage release, and covered by Polarcus’ state of the art Cygnus 3D multi-client dataset. The newly offered areas consist of AC17-2 and AC17-3 in the Vulcan Sub-basin and AC17-4 and AC17-5 to the south toward the Browse Basin. All release areas have been nominated by industry, assessed and considered by Government and selected to offer the petroleum exploration industry a variety of investment opportunities. All are available for work program bidding with closing dates in October 2017 (AC17-2 and AC17-3) and March 2018 (AC17-4 and AC17-5).

There is substantial ongoing interest in exploration in the released areas of the Vulcan Sub Basin. In a notoriously difficult area for imaging, the new Cygnus seismic data is delivering a step-change in the subsurface imaging. Acquisition of the Cygnus dataset is ongoing with Phases 1 and 2 complete and 3 and 4 planned for 2017. The new data is now allowing identification and fuller understanding of both existing and new plays in the basin, and is subsequently re-generating the interest of potential bidders.

With existing production and infrastructure in place in this relatively shallow water area, the available blocks in this brownfields environment provide exactly the kind of infrastructure led exploration which E&P companies are looking for in the current environment.


Map of new blocks on offer in 2017 Acreage Release

The Cygnus survey comprises of 6,200 sq. km and is designed to provide a basin-wide, high quality broadband 3D-Seismic Dataset to exploration companies over this proven hydrocarbon province. The first two phases were completed in 2016, providing new RightBAND™ multi-client data over the Vulcan Sub-Basin, offshore North-West Shelf, Australia.

The main exploration targets in the Vulcan Sub-basin are sandstones in the Upper Triassic Challis and Nome Formations, fluvio-deltaic sandstones of the Middle Jurassic Plover Formation, Oxfordian shoreface/barrier bar sandstones of the Montara Formation, Tithonian submarine fans of the upper Vulcan Formation and submarine fans of the Upper Cretaceous Puffin Formation. Plays occur in stratigraphic traps, pinchouts, unconformity truncations, tilted fault blocks, horst blocks and anticlines.

Historically, sub-optimal acquisition and processing strategies have not been able to address the geological and geophysical challenges, such as the energy absorption and multiple issues caused by the thick Late Cretaceous-Tertiary carbonates.

To overcome these challenges, Polarcus acquired this survey, in part in collaboration with Spectrum, in the structural dip direction using an XArray™ configuration: 10 x 112.5m x 8,100m with a 12.5m triple-source shot interval and continuous recording, delivering 33% improved cross line sampling without any interpolation. The data was processed through a high-end anisotropic pre-stack depth migration sequence by DownUnder GeoSolutions.


Final PSDM Data now available!


Please contact us to book a data viewing.

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Cygnus Data Sheet

Project Description

Polarcus Naila
Acquisition Year
10 x 112.5m x 8,100m

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Contact Details

Jai Pandya
+65 9002 5239

Cameron Astill
+65 9852 2250