Modelling of geomorphological features of fluvial systems in Eromanga Basin and North Sea using 3D seismic attributes.

This study is sequentially constructed to develop an understanding of 3D seismic attributes working mechanism and algorithmic expressions used for finding key geomorphological features of fluvial system. The study consists of two study areas, Eromanga Basin Naccowlah Block of Australia and North Sea F3 Block Dutch sector. Seismic attributes (amplitude envelope, instantaneous frequency, cosine of phase, spectral decomposition and sweetness) were used to conduct qualitative and quantitative analysis. The geomorphological analysis helped to elucidate channel geometry and identification of lithology in channel course. The systematic methodology for the study was followed for both study areas, which consisted of the selection of desired seismic horizons, its flattening for analysis and application of attributes. With the purpose of understanding fluvial system features, 3D seismic give attributes significant information increment in the existing information. This addition can codicil geological information of the fluvial system, which can also help in investigating other paleo-geomorphic features. Research highlights: 3D seismic geomorphology analysis Seismic attributes application Validation of seismic attributes analysis Fluvial system sinuosity estimations via 3d seismic [ABSTRACT FROM AUTHOR]