Some recent here about Southern Amadeus....

Some recent here about Southern Amadeus.
http://www.geoscience.nt.gov.au/gemis/ntgsjspui/bitstream/1/82731/1/AGES2016_Debacker_et_al.pdf

The Dukas target looks enormous - roughly 120 x 20km = 2400 sq km.
Might be why Santos are still interested. Could be TCF size.
Roughly same size as A.C.T.
Mereenie is about 180 sq km.


Santos Ltd (Santos) entered into the southern Amadeus
Basin (Figure 1) via a partnership with Central Petroleum
Ltd in 2012 to explore the sub-salt and intra-salt plays of
the Neoproterozoic lower Gillen-Heavitree Petroleum
System. A central basin high and focus for regional
hydrocarbon migration was postulated to have formed as a
result of deformation and loading of the basin to the south
(580–530 Ma Petermann Orogeny), and later deformation
and loading to the north (450–300 Ma Alice Springs
Orogeny). The primary exploration objective was the
Heavitree Quartzite, a fluvio-marine sandstone that had
flowed gas from Magee-1 (drilled 1992), the only well to
test the Neoproterozoic sub-salt play in this frontier basin
at that time. Subsequently, a second test of the play, the
Southern Amadeus Joint Venture’s Mt Kitty-1 well, flowed
gas from fractured granitic basement. This test confirmed
the existence of an extensive sub-salt petroleum system as
well as the excellent sealing capacity of the Neoproterozoic
evaporites. Gas flows from both wells recorded helium
contents of ca 6–9% in addition to hydrocarbon and inert
gases.
In 2013 Santos acquired over 1500 km of regional 2D
seismic across the Southern Amadeus Joint Venture (SAJV)
permits (Figure 1). This survey was the first regional
seismic dataset acquired over the southern Amadeus
Basin; it resulted in the identification of two significant
sub-salt structures, named Dukas and Mahler. The Dukas
lead, located north of Murphy-1, comprises a large and
broad basement roll-over mapped on three seismic lines
(Figure 2). Post-salt reflections are clearly imaged, but
data quality is highly variable where salt mobilisation has
occurred with basement locally difficult to image. Infill
seismic is to be acquired in 2016 to advance both the Dukas
and Mahler leads to drillable prospects.