Authors / CoAuthors
Williamson, P.E. | Kroh, F.
Abstract
Amplitude Versus Offset (AVO) technology has proved itself useful in petroleum exploration in various parts of the world particularly for gas exploration. To determine if modern AVO compliant processing could identify potential anomalies for exploration offshore Australia Geoscience Australia reprocessed parts of four publicly available long cable lines from two 2006 acreage release areas on the Exmouth Plateau and in the Browse Basin on the North West Shelf, and parts of two publicly available long cable lines from Geoscience Australia's Bremer Basin study on two 2005 frontier acreage release areas on the Southern Margin. The preliminary results from these three reprocessing efforts are encouraging and were made publicly available in order to assist any companies interested in the acreage. The results of the studies and associate data are available from Geoscience Australia at the cost of transfer. The AVO data over the Exmouth Plateau shows AVO anomalies including one that appears to be at the Jurassic level of the reservoir in the Jansz/Io supergiant gas field in adjacent acreage to the north. The AVO data over the Caswell Sub-basin of the Browse Basin shows an AVO anomaly at or near the stratigraphic zone of the Brecknock South 1 gas discovery to the north. The geological settings of strata possibly relating to two AVO anomalies in the undrilled Bremer Basin are in the Cretaceous in the Berriasian and in the Valanginian. The AVO anomalies from the three studies are kilometres in length along the seismic lines. These preliminary results from Geoscience Australia and other AVO work that has been carried out by industry show promise that AVO compliant processing has value particularly for gas exploration offshore Australia, and that publicly available long-cable data can be suitable for AVO analysis.
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nonGeographicDataset
eCat Id
64981
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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Keywords
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- External PublicationScientific Journal Paper
- ( Theme )
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- marine
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- AU
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
Publication Date
2007-01-01T00:00:00
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geoscientificInformation
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