Mentelle Basin

Highlights

Release Area
W10-26

Mentelle Basin
Western Australia

Bids Close - 12 May 2011

High resolution image of the Mentelle Basin Quicklook [PDF, 799KB]

Download Full Document of the Mentelle Basin [PDF, 5.6MB]

Large frontier basin with Early Permian to Early Jurassic and mid-Jurassic to Early Cretaceous depocentres.
Multiple potential source rock intervals in Permian, Jurassic and Cretaceous strata.
Wide range of structural and stratigraphic plays, including large anticlinal structures due to Miocene reactivation.
Water depth range from 500 to 3750 m.
Petroleum systems modelling indicates potential for oil and gas accumulations at different stratigraphic levels across the basin.
Oil and gas discoveries in the adjacent South Perth Basin.
Special Notices apply, refer to Guidance Notes.

The Mentelle Basin is a medium to extremely deep-water frontier basin located offshore southwestern Australia. It comprises several depocentres with mid-Permian to Jurassic and/or Jurassic to Lower Cretaceous fill. These are likely to contain multiple source rock intervals associated with coals and carbonaceous shales, as well as reservoir rocks and intraformational seals.

The depocentres are overlain by a Cretaceous to Holocene post-rift succession that contains potential regional seals and provides a range of potential stratigraphic traps. Burial depth and thermal maturity calibrated to data from the adjacent Vlaming Sub-basin suggest that potential source rocks are thermally mature for oil and gas generation.

The basin offers a wide range of play types, including faulted anticlines and highside fault blocks, drape and forced fold plays, and a large range of stratigraphic and unconformity plays. Hydrocarbon indicators on seismic data, some of which are supported by AVO analysis, as well as potential hydrocarbon slicks detected by Synthetic Aperture Radar data, suggest that at least one active petroleum system is present in the basin.

Mentelle basin Block listing

Mentelle Basin Block listing [PDF, 183KB]