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AUSTRALIA 2013Offshore Petroleum Exploration Acreage Release
RELEASE AREAS NT13-4 AND NT13-5 SOUTHERN PETREL SUB-BASIN, BONAPARTE BASIN NORTHERN TERRITORY
Figure 1 Location of the 2013 Release Areas in the Petrel Sub-basin of the Bonaparte Basin
BIDS CLOSE 21 November 2013 Proximal to the Blacktip gas fields and
Development/production plans are underway for the nearby Petrel, Tern and Frigate gas fields
Shallow water depths, 1090 m
Proven plays in anticlines, tilted fault blocks and structural/stratigraphic traps, structures related to salt tectonics
Multiple potential oil- and gas-prone source rocks and active petroleum systems within the region
Special Notices apply, refer to Guidance Notes
Release Areas NT13-4 and NT13-5 are located in the Joseph Bonaparte Gulf, in the vicinity of the Petrel, Tern, Frigate and Blacktip gas fields; the latter commenced production via the Blacktip pipeline in 2009.
The Petrel Sub-basin in the southern Bonaparte Basin was formed during Paleozoic northeastsouthwest extension and contains a thick succession of Paleozoic and Mesozoic sediments. Proven Permian petroleum systems in the region have charged the numerous gas accumulations. There is an oil and gas-prone early Carboniferous petroleum system, with Bonaparte Formation (Langfield Group) source rocks, in the inboard part of the sub-basin. The Release Areas offer a range of play types including early formed structures such as horst blocks and rotated fault blocks, as well as inversion-related anticlines. Stratigraphic traps are represented by pinch-outs and truncations across unconformities. Infrastructure in the region is expanding and will facilitate development of any new discovery.
AUSTRALIA 2013 Offshore Petroleum Exploration Acreage Release 1
Areas NT13-4 & 5Bonaparte Basin
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Figure 2 Structural elements of the Petrel Sub-basin (after Colwell and Kennard, 1996) showing petroleum fields and discoveries, the location of regional cross-sections and the 2013 Release Areas
Cape Ford 1
Ichthys pipeline (pr
Darwin ShelfPetrel Sub-basin
Sunbird 1Sandbar 1
Barnett 1, 2Windjana 1
Flat Top 1
Durville 1Darwinia 1
Bougainville 1Blacktip North 1Marina 1
Well symbol information is sourced either from "open file" data from titleholders where this is publicly available as at 1 December 2012 or from other public sources. Field outlines are provided by EncomGPinfo, a Pitney Bowes Software (PBS) Pty Ltd product. Whilst all care is taken in the compilation of the field outlines by PBS, no warranty is provided re the accuracy or completeness of the information, and itis the responsibility of the Customer to ensure, by independent means, that those parts of the information used by it are correct before any reliance is placed on them.
0 100 km
Mineral exploration wellPetroleum exploration well - Oil discovery
Petroleum exploration well - Oil showPetroleum exploration well - Gas discovery
Petroleum exploration well - Gas show
Petroleum exploration well - Not classifiedPetroleum exploration well - Dry wellPetroleum exploration well - Oil and gas showPetroleum exploration well - Gas discovery and oil showPetroleum exploration well - Oil discovery and gas show
Major fault - extensional
Seismic section figure location
Gas pipeline (proposed)
Scheduled area boundary(OPGGSA 2006)
Major fault - strike-slipMesozoic
2013 Offshore PetroleumAcreage Release Area
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Figure 3 Paleozoic stratigraphy and hydrocarbon discoveries of the Petrel Sub-basin based on the Bonaparte Basin Biozonation and Stratigraphy Chart (Nicoll et al, 2009). Geologic Time Scale after Gradstein et al (2012). Basin phases are specific to the Petrel Sub-basin and follow Colwell and Kennard (1996)
Age(Ma) Period Epoch Stage Shows Petrel Sub-basin
Bonaparte 1, Weaber 5
Ningbing 2Waggon Creek 1
Cape Ford 1
Cape Ford 1Pelican Island 1
Cape Ford 1Barnett 2, Turtle 2
Cape Ford 1
Barnett 2, Turtle 2 Bonaparte 2
Bonaparte 1, Turtle 1
Barnett 1, Cape Ford 1, Kulshill 2Pelican Island 1, Turtle 1, Turtle 2
Barnett 1, Cape Ford 1, Turtle 1, Turtle 2
Cambridge 1, Torrens 1
Blacktip 1, Bougainville 1, Tern 2
Petrel 2, Penguin 1, Polkadot 1Turtle 1Petrel 2
Torrens 1 Tern 2, Tern 3
Ascalon 1A, Tern 3
Blacktip 1, Polkadot 1Turtle 2
Barnett 1, Shakespeare 1, Turtle 1Tern 1
Turtle 1Blacktip 1Barnett 1
Cape Ford 1Lacrosse 1
Tern 1, Tern 2Tern 4, Tern 5
Ascalon 1A, Petrel 1, Petrel 2, Petrel 3Petrel 4, Petrel 5, Petrel 6, Tern 4
Weaber 1, Weaber 4
Garimala 1, Vienta 1, Waggon Creek 1A
Barnett 1, Barnett 3Cape Ford 1, Kulshill 1
Lacrosse 1, Turtle 1
Bonaparte 1, Garimala 1, Vienta 1
Keep River 1, Ningbing 1Waggon Creek 1A, Weaber 2A
Kingfisher ShaleUtting Calcarenite
Keyling FormationDitji Formation
Quoin FormationTreachery Formation
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Figure 4 AGSO seismic line 100/01 across the Petrel Sub-basin (Kennard et al, 2002). Location of the line is shown in Figure 2. Regional seismic horizons are shown in Figure 3
Base JurassicIntra Triassic
Near Top Carboniferous
Mid CarboniferousEarly Carboniferous
SW NEBougainville 1Lacrosse 1
0 50 km
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Figure 5 Southeastern part of AGSO seismic line 100/05 across the Petrel Sub-basin (Kennard et al, 2002). Location of the line is shown in Figure 2. Regional seismic horizons are shown in Figure 3
SENWGull 1 Petrel 1A Bougainville 1
Callovian Base Jurassic
Near Top Carbonif
0 50 km
Line 100-05 (part)
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PETROLEUM SYSTEMS ELEMENTS
Southern Petrel Sub-basin
Sources Permian (GuadalupianLopingian) pro-delta, shoreface and open marine Hyland Bay Subgroup (gas-prone)
Permian (Cisuralian) fluvial Keyling Formation (gas-prone, possible oil)
Carboniferous (Mississippian) marine Bonaparte Formation (oil and gas-prone)
Reservoirs Lower Triassic marginal marine Ascalon Formation (Mount Goodwin Subgroup)
Permian lacustrine Penguin Formation (Mount Goodwin Subgroup)
Permian shoreface to marine Tern, Cape Hay and Torrens formations (Hyland Bay Subgroup)
Permian marginal marine Keyling, fluvial Quoin, and glacial Treachery and Kuriyippi formations (Kulshill Group)
Carboniferous marine Aquitaine and Arco formations (Wadeye Group)
Carboniferous marine Tanmurra Formation, Kingfisher Shale, Yow Creek Formation and Milligans Formation (Weaber Group)
Seals Regional seals
Triassic marine Mount Goodwin Subgroup
Permian marine Fossil Head and glacial Treachery formationsIntraformational seals
Permian shoreface to open marine Hyland Bay Subgroup (Pearce, Cape Hay and Dombey formations), glacial Treachery and marginal marine Keyling formations
Carboniferous marine Weaber Group and marine Langfield Group equivalent
Traps Structural and stratigraphic traps
MiddleLate Triassic Fitzroy Movement was responsible for creating large-scale inversion anticlines (Petrel) commonly associated with salt mobilisation, faulted anticlines (Tern, Blacktip and Frigate) and tilted fault blocks (Fishburn)
Drape and pinch-out plays occur within the Weaber Group and lowstand basin-floor fan sandstones within the Milligans Formation in the southern Petrel Basin
INFRASTRUCTURE AND MARKETSThe 2013 Release Areas are proximal to the Petrel and Tern gas fields, the Turtle and Barnett oil fields and the Blacktip gas field and pipeline.
CRITICAL RISKSThe identification of good quality reservoirs in suitably sized traps with access to active oil and gas-prone source kitchens is a risk. Preservation of the oil following significant Triassic-uplift and erosion is another risk, as exemplified by the biodegradation of the Turtle and Barnett oils. Reservoir quality is variable, with the preservation of porosity and permeability within Carboniferous reservoirs and the Keyling Formation a significant risk. Sealing capacity needs to be addressed, given that oil shows occur throughout Carboniferous and Permian sediments in the wells of the southern Petrel Basin.
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DATA SETSFor the Wells Data Listing go to http://www.petroleum-acreage.gov.au/2013/support/geo.html
For the Seismic Surveys Listing go to http://www.ga.gov.au/energy/projects/acreage-release-and-promotion/2013.html#data-packages
GEOSCIENCE AUSTRALIA PRODUCTS
Regional Geology and Seismic Petrel Sub-basin Study 19951996: Summary Report. Australian Geological Survey Organisation
Record 1996/40. GEOCAT 22670
Line Drawings of AGSO Geoscience Australias Regional Seismic Profiles, Offshore Northern and Northwestern Australia, Australian Geological Survey Organisation Record 2001/36. GEOCAT 36353
Interpreted Horizons and Faults for Seismic Survey 100. Petrel Sub-basinDigital Horizon and Fault Data in ASCII Format. GEOCAT 35239
Seabed Environments and Shallow Geology of the Petrel Sub-basin, Northern Australia SOL5463 (GA0335) Post Survey Report (NLECI Program), Geoscience Australia Record 2012/66. GEOCAT 74627
Stratigraphy Bonaparte Basin Biozonation and Stratigraphy Chart 33. GEOCAT 70371
Petroleum Systems and Accumulations Bonaparte Basin, NT, WA, AC and JPDA, Australian Petroleum Accumulations Report 5, 2nd Edition, 2004.
Australian Petroleum Systems Petrel Sub-basin module. Australian Geological Survey Organisation Record 1995/07. GEOCAT 37162
The Petroleum Systems of the Bonaparte Basin, 2004. GEOCAT 61365
Source Rock Time-slice Maps, Offshore Northwest Australia1:3,000,000 Scale, 2004. GEOCAT 61179
Oils of Western Australia II: Regional Petroleum Geochemistry and Correlation of Crude Oils and Condensates from Western Australia and Papua New Guinea, Geoscience Australia and GeoMark Research, 2005, GEOCAT 37512
Characterisation of Natural Gases from West Australian Basins: Bonaparte Basin Module. AGSO and Geotechnical Services non-exclusive study, 2000. GEOCAT 33569
Contact Geoscience Australias Sales Centre for more information or to order these reports or products, phone 61 (0)2 6249 9966, email [email protected]
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KEY REFERENCESAHMUD, M. AND MUNSON, T.J., 2013 Chapter 36: Bonaparte Basin. In: Ahmad, M. and Munson, T.J., (compilers), Geology and mineral resources of the Northern Territory, Northern Territory Geological Survey, Special Publication 5.
BARRETT, A.G., HINDE, A.L. AND KENNARD, J.M., 2004Undiscovered resource assessment methodologies and application to the Bonaparte Basin. In: Ellis, G.K., Baillie, P.W. and Munson, T.J. (eds), Timor Sea Petroleum Geoscience, Proceedings of the Timor Sea Symposium, Darwin, 1920 June 2003. Northern Territory Geological Survey, Special Publication 1, 353372.
COLWELL, J.B. AND KENNARD, J.M. (compilers), 1996Petrel Sub-basin Study 19951996: Summary Report. Australian Geological Survey Organisation Record 1996/40, 122pp.
GORTER, J.D., JONES, P.J. NICOLL, R.S. AND GOLDING, C.J., 2005A reappraisal of the Carboniferous stratigraphy and the petroleum potential of the southeastern Bonaparte Basin (Petrel Sub-basin), northwestern Australia. The APPEA Journal, 45(1), 275296.
GORTER, J.D., MCKIRDY, D.M., JONES, P.J. AND PLAYFORD, G., 2004Reappraisal of the Early Carboniferous Milligans Formation source rocks system in the southern Bonaparte Basin, northwestern Australia. In: Ellis, G.K., Baillie, P.W. and Munson, T.J. (eds), Timor Sea Petroleum Geoscience. Proceedings of the Timor Sea Symposium, Darwin, 1920 June 2003. Northern Territory Geological Survey, Special Publication 1, 231255.
GORTER, J.D., POYNTER, S.E., BAYFORD, S.W. AND CAUDULLO, A., 2008Glacially influenced petroleum plays in the Kulshill Group (Late Carboniferous Early Permian) of the southeastern Bonaparte Basin, Western Australia. The APPEA Journal, 48(1), 69113.
GRADSTEIN, F.M., OGG, J.G. SCHMITZ, M.D. AND OGG, G.M. (eds), 2012The Geologic Time Scale 2012; Volumes 1 and 2. Elsevier BV, 1144 pp.
KENNARD, J.M., DEIGHTON, I., EDWARDS, D.S., BOREHAM, C.J. AND BARRETT, A.G., 2002Subsidence and thermal history modelling: new insights into hydrocarbon expulsion from multiple petroleum systems in the Petrel Sub-basin, Bonaparte Basin. In: Keep, M. and Moss, S. (eds), The Sedimentary Basins of Western Australia 3, Proceedings of the Petroleum Exploration Society of Australia Symposium, Perth, 2002, 409437.
MCCONACHIE, B. A., BRADSHAW, M. T. AND BRADSHAW, J. 1996Petroleum Systems of the Petrel Sub-basin an integrated approach to basin analysis and identification of hydrocarbon exploration opportunities. The APPEA Journal, 36(1), 248268.
MORY, A.J., 1991Geology of the Offshore Bonaparte Basin, Northwestern Australia. Geological Survey of Western Australia Report, 29.
NICOLL, R.S., KENNARD, J.M., LAURIE, J.R., KELMAN, A.P., MANTLE, D.J., AND EDWARDS, D.S., 2009[Web page] Bonaparte Basin Biozonation and Stratigraphy, 2009, Chart 33, Geoscience Australia.
ROBINSON, P. AND MCINERNEY, K., 2004Permo-Triassic reservoir fairways of the Petrel Sub-basin, Timor Sea. In: Ellis, G.K., Baillie, P.W. and Munson, T.J. (eds), Timor Sea Petroleum Geoscience. Proceedings of the Timor Sea Symposium, Darwin, 1920 June 2003. Northern Territory Geological Survey, Special Publication 1, 295312.
AUSTRALIA 2013 Offshore Petroleum Exploration Acreage ReleaseRELEASE AREAS NT13-4 AND NT13-5 SOUTHERN PETREL SUB-BASIN, BONAPARTE BASIN NORTHERN TERRITORYHIGHLIGHTSFigure 1Figure 2Figure 3Figure 4Figure 5
PETROLEUM SYSTEMS ELEMENTSSouthern Petrel Sub-basin
INFASTRUCTURE AND MARKETSCRITICAL RISKSDATA SETSGEOSCIENCE AUSTRALIA PRODUCTSRegional Geology and SeismicStratigraphyPetroleum Systems and Accumulations