A regional assessment of CO2 storage potential in the Browse Basin : Results of a study undertaken as part of the National CO2 Infrastructure Plan

Rollet, Nadège; Abbott, Steve; Lech, Megan; Romeyn, Rowan; Grosjean, Emmanuelle; Edwards, Dick; Totterdell, Jennifer; Nicholson, Chris; Khider, Kamal; Nguyen, Dang Hao; Bernardel, George; Tenthorey, Eric; Orlov, Claire; Wang, L.

doi:10.11636/record.2016.017

Cited by 7 publications

(11 citation statements)

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“…Seismic mapping based on regional 2D and some 3D seismic survey data was tied to 60 key wells ( Figure 1) using a revised tectonostratigraphic framework ( Figure 2) for the basin. Recent seismic and well interpretations (Rollet et al, 2016a) are used to produce palaeogeographic maps ( Figure 3) and develop a regional 3D geological model of the Browse Basin (Palu et al, 2017). The model is used to map the gross thickness of each set of supersequences containing source rock facies; i.e.…”

Section: Methods and Resultsmentioning

confidence: 99%

“…location of the key wells used for this study. Subsequent studies, including modelling (Kennard et al, 2004) and the detailed mapping of the Cretaceous supersequences (Abbott et al, 2016;Rollet et al, 2016a), led to a good understanding of the Lower Cretaceous petroleum system. Although Jurassic sedimentary successions are known to contain some of the most effective source rocks in the Westralian basins on the North West Shelf (Bradshaw et al, 1998;Longley et al, 2002), there is much less published information available for the Jurassic source rocks and their hydrocarbon-generating potential in the Browse Basin.…”

Section: Figure1 Structural Elements Of the Browse Basin Andmentioning

confidence: 99%

“…Tectonic subsidence curves from 38 modelled wells (location on Figure 1) confirm that extensional faulting was concentrated along the Scott Reef Trend, in the Caswell Sub-basin basinward of the Prudhoe Terrace, in the Heywood Graben and in the Barcoo Subbasin, basinward of the Leveque Shelf (Figure 3a). The patterns of faulting suggest that the extension direction was approximately NW-SE ( Figure 3a, Rollet et al, 2016a).…”

Section: Early-middle Jurassicmentioning

confidence: 99%

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Regional Jurassic sediment depositional architecture, Browse Basin: Implications for petroleum systems

Rollet

Edwards

Grosjean

et al. 2018

ASEG Extended Abstracts

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The Browse Basin hosts considerable gas and condensate resources, including the Ichthys and Prelude fields that are being developed for liquefied natural gas (LNG) production. Oil discoveries are sub-economic. This multidisciplinary study integrating sequence stratigraphy, palaeogeography and geochemical data has mapped the spatial and temporal distribution of Jurassic to earliest Cretaceous source rocks. This study allows a better understanding of the source rocks contribution to the known hydrocarbon accumulations and charge history in the basin, including in underexplored areas. The Jurassic to earliest Cretaceous source rocks have been identified as being the primary sources of the gases and condensates recovered from accumulations in the Browse Basin as follows:-The Lower-Middle Jurassic J10-J20 (Plover Formation) organic-rich source rocks have been deposited along the northeastsouthwest trending fluvial-deltaic system associated with a phase of pre-breakup extension. They have charged gas reservoired within J10-J20 accumulations on the Scott Reef Trend and in the central Caswell Sub-basin at Ichthys/Prelude, and in the Lower Cretaceous K40 supersequence on the Yampi Shelf.-Late Jurassic-earliest Cretaceous J30-K10 source rocks are interpreted to have been deposited in a rift, north of the Scott Reef Trend and along the Heywood Fault System (e.g. Callovian-Tithonian J30-J50 supersequences, lower Vulcan Formation). The J30-K10 shales are believed to have sourced wet gas reservoired in the K10 sandstone (Brewster Member) in the Ichthys/Prelude and Burnside accumulations, and potentially similar plays in the southern Caswell Sub-basin.-The organic-rich source rocks observed in the Heywood Graben may be associated with deeper water marine shales with higher plant input into the isolated inboard rift. They are the potential source of fluids reservoired within the Crux accumulation, which has a geochemical composition more closely resembling a petroleum system in the southern Bonaparte Basin.

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Section: Methods and Resultsmentioning

confidence: 99%

Section: Figure1 Structural Elements Of the Browse Basin Andmentioning

confidence: 99%

Section: Early-middle Jurassicmentioning

confidence: 99%

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Regional Jurassic sediment depositional architecture, Browse Basin: Implications for petroleum systems

Rollet

Edwards

Grosjean

et al. 2018

ASEG Extended Abstracts

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“…These metals are essential for a growing technology market (Bleiwas & Wilburn, 2004), so the onshore Canning Basin may have potential for hosting these resources. The Northwest Shelf, and particularly basalts of the Browse Basin (Rollet et al., 2016), may also be suitable for large scale CO 2 sequestration and storage, as CO 2 can be stored in stable minerals when it reacts with basalt under sediment cover (Goldberg et al., 2008).…”

Section: Discussionmentioning

confidence: 99%

Geophysical and Geochemical Evidence for a New Mafic Magmatic Province Within the Northwest Shelf of Australia

Yule

Spandler

2022

Geochem Geophys Geosyst

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The emplacement or eruption of large volumes of mafic magma over relatively short timescales is well recognised as important geological phenomena that has influenced mass extinctions, continental breakup, and metalliferous ore formation across Earth's history (Ernst, 2014). The most voluminous of these events, classified as Large Igneous Provinces (LIPs), are characterized by extensive flood basalts associated with dolerite dyke and sill networks that are genetically related to a mantle plume, and/or continental break-up geodynamics (Ernst et al., 2005). To classify a LIP, a mafic igneous suite must cover an area of at least 100,000 km 2 , have a minimum volume of 100,000 km 3 and be emplaced within a 50-million-year time period (Coffin & Eldholm, 1994;Ernst & Buchan, 2001;Ernst et al., 2005). An episode of mafic magmatism that meets some, but not all, of these requirements can be classified as a Mafic Magmatic Province (MMP) rather than a LIP, given the same surface area and volume requirements are met (Ernst, 2014).

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“…A regional 3D geological model of the Browse Basin was developed from new seismic interpretations (Rollet et al 2016a) and forms the basis of a pseudo-3D petroleum systems model (Fig. 1a).…”

Section: Burial and Thermal History Modelling Set-upmentioning

confidence: 99%

Integrated petroleum systems analysis to understand the source of fluids in the Browse Basin, Australia

et al. 2017

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Abstract. The Browse Basin is located offshore on Australia's North West Shelf and is a proven hydrocarbon province, hosting gas with associated condensate in an area where oil reserves are typically small. The assessment of a basin's oil potential traditionally focuses on the presence or absence of oil-prone source rocks. However, light oil can be found in basins where source rocks are gas-prone and the primary hydrocarbon type is gas-condensate. Oil rims form whenever such fluids migrate into reservoirs at pressures less than their dew point (saturation) pressure. By combining petroleum systems analysis with geochemical studies of source rocks and fluids (gases and liquids), four Mesozoic petroleum systems have been identified in the basin.This study applies petroleum systems analysis to understand the source of fluids and their phase behaviour in the Browse Basin. Source rock richness, thickness and quality are mapped from well control. Petroleum systems modelling that integrates source rock property maps, basin-specific kinetics, 1D burial history models and regional 3D surfaces, provides new insights into source rock maturity, generation and expelled fluid composition.The principal source rocks are Early-Middle Jurassic fluvio-deltaic coaly shales and shales within the J10-J20 supersequences (Plover Formation), Middle-Late Jurassic to Early Cretaceous sub-oxic marine shales within the J30-K10 supersequences (Vulcan and Montara formations) and K20-K30 supersequences (Echuca Shoals Formation). These source rocks contain significant contributions of terrestrial organic matter, and within the Caswell Sub-basin, have reached sufficient maturities to have transformed most of the kerogen into hydrocarbons, with the majority of expulsion occurring from the Late Cretaceous until present.

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A regional assessment of CO2 storage potential in the Browse Basin : Results of a study undertaken as part of the National CO2 Infrastructure Plan

Cited by 7 publications

References 0 publications

Regional Jurassic sediment depositional architecture, Browse Basin: Implications for petroleum systems

Regional Jurassic sediment depositional architecture, Browse Basin: Implications for petroleum systems

Geophysical and Geochemical Evidence for a New Mafic Magmatic Province Within the Northwest Shelf of Australia

Integrated petroleum systems analysis to understand the source of fluids in the Browse Basin, Australia

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