Flank Plays and Faulted Basement: New Directions for the Cooper Basin

Taylor, Stephen B.; Solomon, G.J.; Tupper, N.P.; Evanochko, J.; Horton, Gary W.; Waldeck, R.; Phillips, Sandra

doi:10.1071/aj90006

Cited by 6 publications

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“…Ph., Institute of Geology and Development of Combustible Minerals, Moscow, 1985), Z. R. Gajiev (Petroleum potential evaluation in the Eocene beds of the Yevlakh‐Agjabedin Depression, synopsis of thesis prepared by Dr. Ph., Institute of Geological Sciences, Baku, Azerbaijan, 1986), Pieri and Mattavelli [1986], Maksimov [1987a, 1987b], Xiaojun [1987], Ovanesov et al [1988], Taylor et al [1991], Hunt et al [1992], and Rach [2005].…”

Section: Commercial Petroleum Potential Of Volcanic and Volcano‐sedimmentioning

confidence: 99%

Deep-seated abiogenic origin of petroleum: From geological assessment to physical theory

Kutcherov¹,

Krayushkin²

2010

Rev. Geophys.

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[1] The theory of the abyssal abiogenic origin of petroleum is a significant part of the modern scientific theories dealing with the formation of hydrocarbons. These theories include the identification of natural hydrocarbon systems, the physical processes leading to their terrestrial concentration, and the dynamic processes controlling the migration of that material into geological reservoirs of petroleum. The theory of the abyssal abiogenic origin of petroleum recognizes that natural gas and petroleum are primordial materials of deep origin which have migrated into the Earth's crust. Experimental results and geological investigations presented in this article convincingly confirm the main postulates of the theory and allow us to reexamine the structure, size, and locality distributions of the world's hydrocarbon reserves.Citation: Kutcherov, V. G., and V. A. Krayushkin (2010), Deep-seated abiogenic origin of petroleum: From geological assessment to physical theory, Rev. Geophys., 48, RG1001,

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Section: Commercial Petroleum Potential Of Volcanic and Volcano‐sedimmentioning

confidence: 99%

Deep-seated abiogenic origin of petroleum: From geological assessment to physical theory

Kutcherov¹,

Krayushkin²

2010

Rev. Geophys.

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“…Although more than 600 wells have penetrated Warburton Basin strata, most of them are "rat holes"' with less than 40 m of penetration. However four wells have tested commercial volumes of hydrocarbons (gas in Lycosa 1 and Moolalla 1, and oil in Sturt 6 and 7); this is considered to have migrated from Cooper Basin source rocks (Taylor et al, 1991;Nugent, 1991). Fractured siltstones at Lycosa 1 have a maximum gas flow of 5.0 MMCFD (million cubic feet per day) (0.14 Mm 3 /d), while the fracture-enhanced sandstone reservoir in Moolalla 1 has a maximum gas flow of 9.6 MMCFD (0.27 Mm 3 / d) (Taylor et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

“…3) (Sun, 2001;Sun and Gravestock, 2001a ? spaces (Taylor et al, 1991;Sun, 1999Sun, , 2000Sun and Gravestock, 2001a). In the basin, many intervals are severely fractured, but most of the fractures have been mineral-filled.…”

Section: Introductionmentioning

confidence: 99%

Fracture‐filling Cements in the Palaeozoic Warburton Basin, South Australia

Rezaee

Sun²

2007

Journal of Petroleum Geology

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In the Cambro-Ordovician Warburton Basin, South Australia, reservoir rock porosity and permeability are enhanced by open fractures and by partially-open or incompletely mineral-filled fractures. However in many cases, the fractures are completely filled by cements of several types. A knowledge of the nature and origin of the fracture-filling cements can help to identify areas where cement precipitation is relatively less intense, and where oil and gas production may be improved.In the present study, fluid inclusion microthermometry, and stable isotope and electron microprobe analyses were used to indicate the nature and timing of fracture-filling cements. The study shows that fracture-filling cements in the studied Warburton Basin wells include quartz, siderite, ankerite, kaolin and pyrite. Based upon precipitation temperatures, stable isotope compositions, elemental compositions and quartz cement textures, a hydrothermal source for the silica and carbonate cements is envisaged. The hydrothermal activity may be related to granite intrusions during the Carboniferous.Fluid inclusion microthermometry suggest that Warburton Basin rocks in some areas have experienced temperatures of more than 260°C and cannot therefore be a source of hydrocarbons. The observed low permeabilities occur because most fractures were completely or partially filled by cements precipitated during hydrothermal activity soon after granite intrusion. There is a greater likelihood of finding reservoir rocks with open fractures in areas far from the granite intrusions. , b), which are unconformably overlain and entirely concealed by the Cooper, Eromanga and Lake Eyre Basin successions at depths ranging from 1,400m to 4,000 m. The stratigraphy of the Warburton Basin was discussed by Sun (1996, 1998) and revised by Sun and Gravestock (2001b).In the Warburton Basin, four seismic sequences can be differentiated on regional reflection seismic records. The oldest rocks comprise Early Cambrian volcanics, tuffs and agglomerates and are assigned to sequence C1 (Fig. 2). Sequence C2 is characterised by dolomite with vuggy and mouldic porosity (Diamond Bog Dolomite), interpreted as a highstand deposit altered by sub-aerial exposure. Sequence C3 is characterised by an overall back-stepping style with several stacked cycles of catch-up and keep-up carbonates (Coongie Limestone Member). Sequence

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“…The eastern Warburton Basin is better known through drilling and seismic surveys of the overlying Cooper Basin than the western Warburton Basin, where exploration has been sparse. In 1990, three wells (Lycosa 1, Moolalla 1 and Sturt 6) produced commercial volumes of oil and gas from within the Warburton Basin succession (Taylor et al, 1991). Because the source rocks are Permian in age, Taylor et al (1991) recognised a new flank play where the Warburton Basin reservoirs are faulted against mature Patchawarra Formation source rocks of the Cooper Basin.…”

Section: Introductionmentioning

confidence: 99%

“…In 1990, three wells (Lycosa 1, Moolalla 1 and Sturt 6) produced commercial volumes of oil and gas from within the Warburton Basin succession (Taylor et al, 1991). Because the source rocks are Permian in age, Taylor et al (1991) recognised a new flank play where the Warburton Basin reservoirs are faulted against mature Patchawarra Formation source rocks of the Cooper Basin. This shows the importance of delineating structural traps in the Warburton Basin for petroleum exploration.…”

Section: Introductionmentioning

confidence: 99%

Structural Style of the Warburton Basin and Control in the Cooper and Eromanga Basins, South Australia

Sun

1997

Exploration Geophysics

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Deep-seated structures within the Warburton Basin have been intermittently reactivated during development of the overlying Cooper and Eromanga Basins. Four major deep structures preceding deposition of the Cooper Basin succession are described. 1) A complex deformation zone occurs on the eastern flank of the Birdsville Track Ridge near Kalladeina 1. 2) Simple reverse faults are common and widespread in the Warburton Basin strata. 3) Gentle folds occur in the Coongie area and become increasingly tight towards the Birdsville Track Ridge. 4) Imbricate thrust faults form the cores of structures along the northeastsouthwest trending Gidgealpa-Merrimelia-Innamincka Ridge. Warburton Basin structural control in the overlying basins is characterised by reactivation and propagation of thrust faults along the Gidgealpa-Merrimelia-Innamincka Ridge, and by further folding and faulting of the complex deformation zone on eastern flank of the Birdsville Track Ridge. The episodic, compressive reactivation has controlled depositional and erosional patterns of the Cooper and Eromanga Basins, and hence controlled hydrocarbon occurrence in these two basins. Potential footwall traps may be formed by propagation of the thrust faults.

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Flank Plays and Faulted Basement: New Directions for the Cooper Basin

Cited by 6 publications

References 0 publications

Deep-seated abiogenic origin of petroleum: From geological assessment to physical theory

Deep-seated abiogenic origin of petroleum: From geological assessment to physical theory

Fracture‐filling Cements in the Palaeozoic Warburton Basin, South Australia

Structural Style of the Warburton Basin and Control in the Cooper and Eromanga Basins, South Australia

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