The Cooper-Eromanga petroleum system, Australia: investigation of essential elements and processes

(S, None LOWE-YOUNG, BONNIE (B.S.), STEVE; Mackie, Steve; Heath, R. S.

doi:10.29118/ipa.816.199.211

Cited by 4 publications

(6 citation statements)

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“…To develop FS3, an E‐W oriented compressional stress regime event (Events 4 and 5) is required sometime after the Toolachee Formation was tilted, but before tilting of the Eromanga Basin sediments (Figure ). This confirms previous research suggesting that an E‐W oriented event formed en echelon anticlines elongate in a N‐S direction, as well as forging the regional unconformity that separates the Eromanga and Lake Eyre basins during the Late Cretaceous (Figure ) [ Lowe‐Young et al ., ]. As this event (Event 5) has a similar orientation and stress regime to the Hunter‐Bowen event (Event 4), it is likely that the faults and fractures developed during Event 4 were reactivated.…”

Section: Interpretation and Discussionmentioning

confidence: 93%

“…New fault development was not evident; likely forming folds rather than faults, or reactivating preexisting faults at a subseismic resolution. These results are consistent with previous research suggesting the development of the Birdsville Track Ridge and the Innamincka Dome during a Paleogene N‐S event [ Lowe‐Young et al ., ].…”

Section: Interpretation and Discussionmentioning

confidence: 99%

“…Postcompressional flexural relaxation generated accommodation space for the fluvial deposition of Jurassic to Lower Cretaceous Eromanga Basin sediments that grade into lacustrine and open shallow marine sediments in the Upper Cretaceous [ Green et al ., ; Hoffman , ; Lowe‐Young et al ., ]. The critical point in the Cooper Basin hydrocarbon system, where hydrocarbon generation, migration, and accumulation had all commenced, is believed to have occurred at approximately 90 Ma and immediately followed by the E‐W oriented compressional Late Cretaceous event.…”

Section: Geological Settingmentioning

confidence: 99%

“…The critical point in the Cooper Basin hydrocarbon system, where hydrocarbon generation, migration, and accumulation had all commenced, is believed to have occurred at approximately 90 Ma and immediately followed by the E‐W oriented compressional Late Cretaceous event. This event regionally eroded the upper Eromanga Basin sediments (Winton Formation), marked by the regional unconformity between the Eromanga and Lake Eyre basins [ Kuang , ; Green et al ., ; Hoffman , ; Apak et al ., ; Lowe‐Young et al ., ; Gravestock and Jensen‐Schmidt , ; Mavromatidis , ]. A possible N‐S compressional event during the Late Paleogene may have reactivated faults and influenced the preservation of existing hydrocarbon accumulations [ Müller et al ., ].…”

Section: Geological Settingmentioning

confidence: 99%

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Combining geophysical data and calcite twin stress inversion to refine the tectonic history of subsurface and offshore provinces: A case study on the Cooper-Eromanga Basin, Australia

Kulikowski

Amrouch

2017

Tectonics

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The use of core samples, borehole image logs, and seismic data is common practice for obtaining valuable structural data; however, these data are often obtained in isolation from other methods and not usually used for paleostress inversion processes. Therefore, for the first time, we present a new approach for constraining paleoprincipal stress orientations and regimes by integrating geophysical data (seismic and well data) with calcite twin principal stress orientation inversion analysis to refine the evolution of entirely subsurface or offshore basins; a case study on the subsurface Cooper‐Eromanga Basin, Australia. Calcite samples were collected from oriented core, natural fracture data collected from borehole image logs, and fault data interpreted from three‐dimensional seismic surveys. The analysis of microscale, mesoscale and macroscale data constrained the paleoprincipal stress orientations and regimes of six successive tectonic events: (1) NNW‐SSE oriented strike‐slip Carboniferous Alice Springs event; (2) SE‐NW oriented compressional Mid‐Permian event; (3) NE‐SW oriented strike‐slip Late Permian Daralingie event; (4) E‐W compressional Late Triassic Hunter‐Bowen event; (5) E‐W compressional Late Cretaceous event; and (6) N‐S compressional Paleogene event. This study shows the applicability of integrating geophysics with calcite twin stress inversion to decipher the tectonic evolution of entirely subsurface and offshore provinces.

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Section: Interpretation and Discussionmentioning

confidence: 93%

Section: Interpretation and Discussionmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

See 2 more Smart Citations

Combining geophysical data and calcite twin stress inversion to refine the tectonic history of subsurface and offshore provinces: A case study on the Cooper-Eromanga Basin, Australia

Kulikowski

Amrouch

2017

Tectonics

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“…Open marine and marginal marine sedimentation continued until the Late Cretaceous when the basin returned to non-marine sedimentation during deposition of the Winton Formation before basin closure during an E-W Late Cretaceous compressional event (Cotton et al 2006;Kulikowski et al 2021). Rapid deposition of the Late Cretaceous Winton Formation was the critical event for hydrocarbon generation and expulsion from many Permian, Triassic and Jurassic source intervals (Lowe- Young et al 1997).…”

Section: Tectonostratigraphic Evolution Of the Eromanga Basinmentioning

confidence: 99%

A regional chronostratigraphic framework for play-based resource assessments in the Eromanga Basin

et al. 2022

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Geoscience Australia is undertaking a series of basin-scale assessments to identify the ‘yet-to-find’ resource potential for hydrocarbons, as well as for groundwater resources and carbon capture and storage (CCS) opportunities in central Australia under the Exploring for the Future (EFTF) Program. A play-based exploration approach is being used to systematically evaluate the key risk elements for each resource type through the analysis of drilling results and spatial data to map ‘sweet spots’ for exploration. These assessments aim to reduce the risks and uncertainties for explorers by providing spatially enabled assessments of energy resources and CCS potential. The work will also improve the understanding of existing groundwater resources which may be impacted by future energy resource developments or provide feedstock for future green hydrogen projects. A key requirement for undertaking such play-based resource assessments is to apply a common regional chronostratigraphic framework across all the resource types that link different geological unit nomenclatures through defining the assessed reservoir and seal intervals and their associated sequence stratigraphic surfaces (sequence boundaries, transgressive surfaces and maximum flooding surfaces). A Mesozoic chronostratigraphic framework has been developed for the Eromanga Basin, which defines nine regional play intervals that host the known hydrocarbon and groundwater resources, or represent potential CCS targets. The Mesozoic play framework is now being applied to undertake play-based low-carbon energy resource assessments in the western Eromanga Basin, with initial work focussing on the interpretation and correlation of the nine play intervals in wells for post-drill analysis.

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4D modelling of fault reactivation using complete paleostress tensors from the Cooper–Eromanga Basin, Australia

Kulikowski

Amrouch

2018

Australian Journal of Earth Sciences

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The Cooper-Eromanga petroleum system, Australia: investigation of essential elements and processes

Cited by 4 publications

References 0 publications

Combining geophysical data and calcite twin stress inversion to refine the tectonic history of subsurface and offshore provinces: A case study on the Cooper-Eromanga Basin, Australia

Combining geophysical data and calcite twin stress inversion to refine the tectonic history of subsurface and offshore provinces: A case study on the Cooper-Eromanga Basin, Australia

A regional chronostratigraphic framework for play-based resource assessments in the Eromanga Basin

4D modelling of fault reactivation using complete paleostress tensors from the Cooper–Eromanga Basin, Australia

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