Officer Basin

 

Detailed Report
Petroleum Geology of South Australia
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detailed Regional Map

 officer basin location map
Age Neoproterozoic (Adelaidean) - middle Palaeozoic (Devonian)
Area in South Australia 176 000 km2 (67 935 sq. miles)
Depth to target zones 200 - 2000 m
Thickness Up to 10 000 m
Hydrocarbon Shows Found in 4 formations, the majority in a playa carbonate in the Marla Overthrust Zone
First commercial discovery None
Identified reserves Nil
Undiscovered resources (50% prob.) Not determined. 400 x 106 kL (2516 mmbbl) recoverable oil (PIRSA estimate 1997, Monte Carlo method)
Production Nil
Basin type Intracratonic
Depositional setting Marine shelf - epeiric sea, sabkha - alkaline playa
Reservoirs Sandstone, carbonate
Regional Structure Foreland basin, thrust complex (Adelaidian, Late Cambrian, Devonian); salt walls, salt pillows
Seals Shale, siltstone, evaporites
Source rocks Siltstone, carbonate
Depth to oil/gas window Variable 120 - 2000+ m (oil), shallowest in Marla Overthrust Zone
Number of wells 10 petroleum, 42 stratigraphic/deep mineral
Seismic line km 10 391 2D onshore, 510 2D offshore

 

Acreage Releases
Officer Basin 1990 acreage release (.PDF) 2.33MB
Officer Basin 1992 acreage release (.PDF) 3.46MB
Officer Basin 1994 acreage release (.PDF) 3.51MB

 
Officer Basin Atlas
A large format atlas compiled by AGSO and PIRSA summarising and interpreting 1993 seismic results from NGMA and SAEI. Copies are available from AGSO and PIRSA.

  • Hard copy A$1000 for the complete altas, A$30 per plate
  • Digital files A$90 per plate, A$60 for subsequent plates (available on Exabyte 8mm tape and CD-ROM)

To order, email DMITRE Petroleum and enter 'Officer Basin Atlas' as the subject of the email.