The
Great Australian Bight sits on the southern margin
of Australia and remains one of the least explored
passive margins in the world. The area has seen renewed
interest after Fugro Multi Client Services and Geoscience
Australia's non-exclusive acquisition of new seismic
(8,626 km) in 1999 and our seismic reprocessing of
40,922 km.
Indications of source, reservoir, seal and proof of
an active petroleum system in the area led the Australian
Government in 1999 to offer for license 11 blocks
over a 160,000 km2 area covering the Ceduna, Eyre
and Duntroon basins. The Australian Government has
released in the 2003 bidding round one block available
for license.
The
Great Australian Bight encompasses a number of basins
along the southern margins of Western Australia and
South Australia, and is roughly a 1000 km in length.
Exploration activity peaked in the early 1970s but
has been almost dormant since the early 1980s, with
only 8 wells drilled in total and in hindsight none
of them on a viable target. Early activity in the
region was hampered by poor quality seismic data with
recent seismic acquisition and reprocessing giving
new insights into basin architecture and prospectivity.
Evidence suggests the presence of movable hydrocarbons
throughout the acreage gives the area huge potential.
It is worth noting that Geoscience Australia have
committed significant resources to the review of seismic,
well and geochemical data along with preparing reports
on the tectonic framework, geopotential interpretation,
sequence stratigraphy and play types of the southern
margin.
For further information on the regional and petroleum
geology in the area please contact Heike
Struckmeyer or Jan
Ostby.