Using automatically generated 3D rose diagrams for correlation of seismic fracture lineaments with similar lineaments from attributes and well log data

<P align=justify>Detection and characterization of fractures in reservoirs is of great importance for maximizing hydrocarbon productivity and recovery efficiency. Coherence and curvature are two seismic attributes that have shown promise in identifying groups of closely spaced fractures or interconnected fracture networks. Curvature attributes, in particular, exhibit detailed patterns from fracture networks. We report the automated generation of rose diagrams from seismic attributes throughout the 3D volume which can be visually correlated to the lineaments seen on different seismic attributes like coherence and quantitatively correlated to the rose diagrams available from image logs. Since these rose diagrams are generated at regular grid points on each time slice, they are essentially 3D rose diagrams. Visualization of these volumetric 3D rose diagrams with other discontinuity attributes lends confidence to the interpretation of fracture lineaments.</P>