Arrowie Basin

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 arrowie loaction map
Age Neoproterozoic; Early - mid Late Cambrian
Area in South Australia 43 000 km2 (16 600 sq. miles) subsurface, 12 000 km2 (4630 sq. miles) outcrop
Depth to target zones <1000 - 1500 m
Thickness 1000 - 3500 m
Hydrocarbon Shows Oil shows in Wilkatana wells; trace free oil (Moodlatana Formation), slightly gas-cut, very saline water (Wirrealpa Formation) in Moorowie 1; gas shows from water bores in Moorowie and Yalkalpo Synclines (anecdotal)
First commercial discovery None
Identified reserves Nil
Undiscovered resources (50% prob.) Not determined
Production Nil
Basin type Extensional, closed by subsequent collision
Depositional setting Marine shelf-ramp and shelf-basin complex reefs
Reservoirs Dolomite, limestone karst, sandstone
Regional Structure Anticlines; some detached, others diapiric; local thrust-wrenched complexes with pop-up structures
Seals Micritic limestone, redbeds, anhydrite
Source rocks Micritic limestone, shale
Depth to oil/gas window 1300 - 2000 m in Moorowie Syncline
Number of wells 8 petroleum, 3 stratigraphic, 6 deep geothermal, ~20 deep mineral wells
Seismic line km 3693 2D

 

Previous Acreage Releases
Arrowie Basin 1986 acreage release
Arrowie Basin 1989 acreage release
Arrowie Basin 1993 acreage release