Petroleum prospectivity of the Murray Canyons, Broad Area of Interest 1A, South-east Marine Region  

Authors / CoAuthors

Bradshaw, B.E. | Blevin, J.E.

Abstract

The Murray Canyons area of interest extends across a series of two major Mesozoic basins (Otway and Bight), remnants of a thin Permian basin (Troubridge), and broad areas of thin Cainozoic cover over continental crust (Encounter Bay Shelf) and oceanic crust (Australia-Antarctica Basin). It has been possible to classify and map a range of different levels of petroleum prospectivity in this area by using a risking scheme that assesses the likelihood of hydrocarbon generation and migration, sealed reservoirs, and valid traps. The level of knowledge and confidence in the risk assessment is also incorporated into the ranking of petroleum prospectivity. Using this approach, its is possible to identify areas that are likely to be explored for petroleum accumulations. These include one proven prospective area (Outer Crayfish), four indicated prospective areas (East Ceduna, East Duntroon, Inner Crayfish and Morum Sub-basin 1), and one area with inferred prospectivity (Morum Sub-basin 2). The Murray Canyons area of interest also includes eight areas which are considered a high risk for the presence of petroleum accumulations, and are thus less likely to be explored (Trumpet Shelf, Couedic, Recherche-Hunter, Otway Thin Outer Cretaceous, Murray Canyons, Troubridge 1, Troubridge 2, and Encounter Bay Shelf). Two non-prospective areas are present where hydrocarbons accumulations are considered to be absent, and are unlikely to be explored (Otway Volcanic Buildup and Abyssal Plain).

Product Type

nonGeographicDataset

eCat Id

60167

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Keywords

• GA PublicationProfessional Opinion

( Theme )

• marine

• AU-SA

Australian and New Zealand Standard Research Classification (ANZSRC)

• Earth Sciences

• Published_Internal

Publication Date

2003-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - restricted

Use - license

Status

Purpose

Maintenance Information

unknown

Topic Category

geoscientificInformation

Series Information

2003/005

Lineage

Unknown

Parent Information

Extents

[-39.5, -35.0, 135.0, 141.0]

Reference System

Spatial Resolution

Service Information

Associations

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