|
Pattern Pyramid - GeoPatterns has developed a method of extracting and storing the visual information in the GeoPatterns Pattern Pyramid. The display at the top of this section illustrates the fundamental structure of the hierarchy. At the base are the data, or 3-D images, to be analyzed. Examples are 3D seismic, and derivatives such as Instantaneous Phase, Hilbert Transforms, AVO, etc. At the next higher level of the pattern pyramid are Features, which are measurements made from the image. The extracted features track geology using a patented technique. At the next level are Patterns, which capture the spatial relationship of these Features such as vertical sequences and lateral facies variations. At a higher level, Patterns are woven into Textures, or patterns of patterns, capturing knowledge of stratigraphy such as onlap, toplap, mounded, chaotic, etc. Spatially connected portions of the subsurface of the earth where the Data, Features, Patterns and Textures correspond to geology of interest are represented as Objects, which are also called geobodies. The technology does not assign meaning to any of the information in the pattern pyramid, this is done by experienced geoscientists who interpret, or assign meaning, to the information in the pattern hierarchy. By storing this meaning in the pattern pyramid, GeoPatterns has captured the knowledge of the geoscientist for reuse during data mining or, after some adjustment, in other similar interpretation projects. Finally, a Scene is a collection of geobodies within a geologic context. For example when the technique is used for lead identification the scene would represent an inventory of leads.
|