National Geoscience Mapping Accord (NGMA) Cooper Eromanga Basins Project - Cooper Formation Depths

Abstract

This dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied.

This dataset includes sun shaded representations of Cooper and Eromanga Basins formation thickness grids generated from seismic interpretation grids for various depths in the Cooper and Eromanga Basin areas in the north-east of South Australia, south-west northern territory, south-east Queensland and north-east New South Wales.

These grids are part of a database of seismically mapped subsurface isopach, time and depth grids, contours, faults and polygons interpreted from Seismic mapping for the National Geoscience Mapping Accord (NGMA) Cooper and Eromanga Basins, Australia, Seismic Mapping Project.

Full metadata for each grid can be viewed at: http://www.pir.sa.gov.au/minerals/sarig2/metadata/seismic_horizons_-_sun_shaded_timedepth_isopach_images/cooper

Purpose

Usage

Purpose:

To develop and promote new petroleum exploration and development opportunities in the Cooper and Eromanga Basins, Australia

Use:

Geological and prospectivity evaluation.

Dataset History

These data were derived from well tops, seismic sections and some open file industry interpretations.

Interpretations over the South Australian sector derived from basic seismic data, with some reference to open file industry and other data.

Interpreted, compiled and edited by Brent Jensen-Schmidt, (consulting geophysicist), Don Vinall and many PIRSA staff.

Overall supervision by Dave Cockshell, Chief Petroleum Geophysicist, Petroleum Geophysics Branch, OFFICE OF MINERALS AND ENERGY RESOURCES, PRIMARY INDUSTRIES AND RESOURCES, SOUTH AUSTRALIA.

Interpretations over the Queensland sector compiled and edited by Kinta Hoffman with Owen Dickson and Julie Dingwall.

Overall supervision by John Draper, Project Leader, Hydrocarbon Geology Group, Geological Survey Office, QUEENSLAND DEPARTMENT OF MINES AND ENERGY.

Interpretations over the Northern Territory sector derived from basic seismic data, with some reference to open file industry and other data.

Interpreted, compiled and edited by Brent Jensen-Schmidt, supported by PIRSA staff.

Overall supervision by Greg Ambrose, Senior Petroleum Geologist, NORTHERN TERRITORY DEPARTMENT OF MINES.

Interpretations over the New South Wales sector derived from borehole data provided by the NSW DEPARTMENT OF MINERAL RESOURCES.

Interpreted, compiled and edited by Brent Jensen-Schmidt, supported by PIRSA staff.

Merging of data across state boundaries by Brent Jensen-Schmidt, and Don Vinall of PIRSA.

Coordinated by Tony Hill, Acting Manager, Petroleum Geology Branch, OFFICE OF MINERALS AND ENERGY RESOURCES, PIRSA.

Positional Accuracy:

Pixel size

Attribute Accuracy:

The (P) to (Z) isopach accuracy is dependent on the Basement and Permian depth grids accuracies. Seismic interpretation of top Permian in the Cooper Basin area is reasonably straight forward. The interpreted depth value at wells that penetrate the Permian top used in the depth conversion is within 2 metres of the Permian well pick. Seismic interpretation of top Basement in the Eromanga Basin area is difficult. The interpreted depth value at wells that penetrate the Basement used in South Australia and Northern Territory is within 2 metres of the Basement well pick.

Logical Consistency:

Highly consistent

Completeness:

Complete

Dataset Citation

"SA Department for Manufacturing, Innovation, Trade, Resources and Energy" (2003) National Geoscience Mapping Accord (NGMA) Cooper Eromanga Basins Project - Cooper Formation Depths. Bioregional Assessment Source Dataset. Viewed 27 November 2017, http://data.bioregionalassessments.gov.au/dataset/7d00f7c5-0ee3-407d-ac07-5c884c0c4b70.