Offshore Petroleum Exploration Acreage Release 2013

North Perth Basin

Location of the 2013 Release Areas W13-19 and W13-20 in the North Perth Basin.

Release Areas – W13-19 and W13-20

Bids close – 22 May 2014

Highlights

  • Adjacent to recently awarded permits
  • Overlie large areas of the frontier Houtman Sub-basin, the largest depocentre in the offshore northern Perth Basin
  • Hydrocarbon shows and paleo-oil columns indicate presence of mature source rocks, including the Hovea Member of the Kockatea Shale
  • Potential plays within Triassic to Middle Jurassic strata
  • Predominantly deep water, 70 – 2500 m
  • Special Notices apply, refer to Guidance Notesv

Release Areas W13-19 and W13-20 are located in the offshore North Perth Basin, covering large areas of the Houtman and Abrolhos sub-basins, and parts of the Gascoyne and Zeewyck sub-basins. A number of wells within the Release Areas have hydrocarbon shows, including Houtman 1, Livet 1, Morangie 1 and Wittecarra 1. Release Areas W13-19 and W13-20 are located partly within a marine reserve Multiple Use Zone (IUCN VI) and Special Purpose Zone (IUCN VI); for further information refer to Special Notices.

The northern Perth Basin formed through continental extension between the southwestern margin of Australia and Greater India during the Paleozoic to Mesozoic. The Abrolhos Sub-basin contains a Permian–Cretaceous sedimentary section up to 6,000 m thick; the Houtman Sub-basin, located farther basinward, is a predominantly Jurassic–Cretaceous depocentre.

The Early Triassic Hovea Member of the Kockatea Shale provides the best potential source rock in the Release Areas, with a range of other potential source rocks present within the Triassic–Jurassic succession. Permo-Triassic tilted fault blocks provide structural traps in the Abrolhos Sub-basin, with tilted fault blocks or horsts and faulted anticlines within the Jurassic section providing potential exploration targets in the Houtman Sub-basin.

Related documents
Document TitlePDFOther Format
Release Area Map – North Perth Basin PDF JPG
Geology – North Perth Basin PDF DOC
Data Listing – North Perth Basin PDF XLS
Block Listing – North Perth Basin PDF DOC
Block Diagram – North Perth Basin PDF JPG
Regional Geology – Perth Basin PDF DOC
Further information on bidding and assessment PDF DOC
2013 Acreage Release Special Notices PDF DOC

Note: Due to the complexity of these figures no alternative descriptions have been provided.
Please email Geoscience Australia at feedback@ga.gov.au for alternate descriptions.