Organic petrography and thermal maturity of the Permian Roseneath and Murteree shales in the Cooper Basin, Australia

Jadoon, Quaid, Roberts, Eric, Blenkinsop, Tom, and Wust, Raphael (2016) Organic petrography and thermal maturity of the Permian Roseneath and Murteree shales in the Cooper Basin, Australia. International Journal of Coal Geology, 154-155. pp. 240-256.

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The Permo-Triassic Cooper Basin is one of the largest intracratonic basins in Australia, covering approximately 130,000 km² in South Australia and Queensland. The basin is one of Australia's major onshore hydrocarbon province and most prospective region for both conventional and unconventional hydrocarbon explorations. Organic petrography and thermal maturity of two Permian lacustrine shale units in the Cooper Basin, the Murteree and Roseneath shales, were investigated on 21 wells with the objective of evaluating the gas generating potential of these units. Vitrinite reflectance values for the Murteree and Roseneath shales range between 1.17% and 2.00%. Macerals show systematic changes in properties relative to maturity rank. A range of maceral compositions, dominated by vitrinite group macerals, are present in both units, which vary between rich and very rich in organic content. Rock-Eval data suggest fair to very good kerogen quality (of kerogen types II, III, and IV ranging from immature to mature) and imply a mostly gas-prone generation potential in the shales.

Item ID: 44026
Item Type: Article (Research - C1)
ISSN: 1872-7840
Keywords: shale gas, hydrocarbon prospectivity, Roseneath shale, Murteree shale, Permian, Cooper Basin
Funders: James Cook University Graduate Research Scheme (JCU GRS)
Date Deposited: 06 Apr 2016 07:38
FoR Codes: 37 EARTH SCIENCES > 3705 Geology > 370510 Stratigraphy (incl. biostratigraphy, sequence stratigraphy and basin analysis) @ 80%
37 EARTH SCIENCES > 3705 Geology > 370509 Sedimentology @ 20%
SEO Codes: 85 ENERGY > 8501 Energy Exploration > 850103 Oil and Gas Exploration @ 80%
97 EXPANDING KNOWLEDGE > 970104 Expanding Knowledge in the Earth Sciences @ 20%
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