Report Book
A report book about the Coorikiana Sandstone Play has been published.
The early Cretaceous Coorikiana Sandstone has been proven to be a bona fide exploration, appraisal and development target in the South Australian sector of the Cooper/Eromanga basin. This report is a comprehensive documentation of the play and is aimed at providing explorers with a better understanding of the geology and potential importance of these regressive marine shoreface sandstone reservoirs.
Download Coorikiana Sandstone Play, Cooper Basin Region Report Book (PDF 16.9 MB)
Play summary
| PLAY | Coorikiana Sandstone |
| SOUTH AUSTRALIA BASIN | Eromanga |
| LOCATION | Cooper Basin region |
| AGE | Early Cretaceous |
| RESERVOIR | Coorikiana Sandstone |
| SEAL |
Oodnadatta Formation / Bulldog Shale – intraformational siltstones and shales |
| CHARGE/MIGRATION | Underlying gas/oil fields via faulting |
| HYDROCARBON PHASE | Oil/gas |
| PRODUCTION |
0.931 million barrels of oil produced in South Australia 35.9 billion cubic feet of gas produced in South Australia |
| HYDROCARBON FLOW RATES |
Highest rate unfracked, Isoptera 1 averaged 46 BOPD. Isoptera 3 averaged 121 BOPD in May 2022 after fracture stimulation. Mudera 15 averaged 3.47 MMscf/d in October 2008. Fracture stimulation can improve flow rates by 3-fold. |
| UNDISCOVERED POTENTIAL RESOURCES |
If 10 fields were to be discovered it is not unreasonable to expect that there would be at least 10 MMstb of oil in place based on existing fields. Confidential information available to DEM suggests it is likely that the undiscovered oil potential for the Coorikiana Sandstone in South Australia could
be significantly larger than this. Gas production from the Coorikiana to the end of July 2022 was 35.9 BCF from 4 fields. A similar amount may be as yet undiscovered. |
