3003289
Description
Mind Map by Hoa Truong, updated more than 1 year ago
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Created by Hoa Truong
almost 9 years ago
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LECTURE 24
- COOPER-EROMANGA
BASINS CASE STUDY
- vertically stacked
basin in central Aus
- all vertically stacked basins have
same geographic location, but
different age&distribution -
different name
- all vertically stacked basins have
same geographic location, but
different age&distribution -
different name
- Ref Sping carried out the first exploration
- Santos, Beach &
Stuart currently
produce in the basins
- Cooper-Eromanga basins
- Cooper is Permian age
(oldest)200/230-300Ma
- Eromanga basin is
Triassic to Early
Cretaceous age
(youngest) <200/230Ma
- two basin are separated by an
unconformity (Triassic-Jurassic)
- Cooper is Permian age
(oldest)200/230-300Ma
- First discovery at
Gidgealpa field in 1963
(structural high in
Cooper basin)
- Gidgealpa-1 well
- Gidgealpa-2 well
- drill-on structure - first gas discovery
from Toolachee Formation
- Subsequent wells made gas discovery from
Toolahee, Patchawarra, Tirrawarra Formation
- Oil is not discovered until 1984
from Eromanga rocks
- Oil is not discovered until 1984
from Eromanga rocks
- drill-on structure - first gas discovery
from Toolachee Formation
- drilled off-structure - resulted
in Permian gas shows
- Gidgealpa-2 well
- Gidgealpa-1 well
- Later discover at Permian Zero Edge
- Reservoir in Eromanga rock
- Sourced from Cooper rocks
- Sourced from Cooper rocks
- Reservoir in Eromanga rock
- 1 well can drill through many basin
- vertically stacked
basin in central Aus
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