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SummaryExtensive 3D seismic volumes Erom around the world have started to show geometry and facies textures of geobodies, which traditionally interpreted through conventional 2D vertical sections, following a time-consuming seismic stratigraphic approach . This method is too labor-intensive and error-prove to be cost-effective . This paper will describe a methodology for the semi-automatie identification of seismic 3D geobodies using single or multiple attribute approaches . Two different approaches have been studied to provide a methodology for a classification of seismic objects (single or multiple seismic reflections) through the analysis of seismic attributen . The operabons of single-attribute approach, like segmentation and threshold cutoffs, are designed to generate a facies volume . The multi-attribute approach maken a classification based on the analysis of a set of cross-plots of couples of attributen ; the methodology allows the generation of facies volumes through the definition of "polygons" on those cross-plots which are more suitable for identifying interenting 3D seismic objects . The last step of the methodology provider the extraction of the surface enveloping the classified seinmie objects . In this paper we present the usage of unconventional seinmie attributen, but in general the same methodology may be used witti any type of seismic attributen .